• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    TECHNOLOGY TO CHARGE LAMP. A device is designed to channel electricity to a lamp, and to adjust downwards the amount of energy channeled to the lamp as a function of the electricity available at the source. In doing so, a reduction in the energy available at the source causes a proportionately less reduction in the lamp's brightness. This can be accomplished by passing electricity through a passive network of resistors and diodes on their way to the lamp. In one example, the source of electrical energy could be a battery that is charged by one or more solar panels. In this case, the device can also perform the function of protecting the battery from excessive overcharging. It channels down a daily lamp energy consumption greater than the daily electrical charge of the solar panels, when the available battery power is close to its maximum capacity.
    公开号:BR112014013698B1
    申请号:R112014013698-0
    申请日:2012-09-07
    公开日:2020-11-03
    发明作者:Geoffrey Wen-Tai Shuy；Chang-Horang Li；Hsin-Chen Lai
    申请人:Lt Lighting (Taiwan) Corporation；
    IPC主号:
    专利说明:

    FUNDAMENTALS
    [001] Street lamps charged with solar energy are in commercial use. Street lamps charged with solar energy receive solar energy from the sun in the form of light. The photons of light are converted into electricity by a solar panel. A battery system stores electrical energy, where it can be used in dark conditions (for example, at night, or on cloudy days) to turn on the street lamp.
    [002] Conventional commercial street lamps charged with solar energy are intended to be able to provide light for three days of continuous rain. However, existing commercial street lamps charged with solar energy are not able to sustain the light for three days of continuous rain under certain very normal and common situations. For this reason, streets that receive sets of street lamps charged with solar energy like these are often left in the dark.
    [003] Some street lamps charged with solar energy are even automatically controlled, such as the street lamp charged with solar energy described in U.S. Patent Publication No. 2010/00970001 A1, which describes a street lamp system that has a main controller for energy management and lighting control of street lamps. U.S. Patent Publication No. 2008/0246416 A1 describes an LED lamp that is illuminated from rechargeable batteries and that aims to precisely adjust, control and monitor each street lamp in the entire solar street lamp system, and check the operating conditions of each part of the solar street lamp and quickly diagnose and repair problems hidden in the street lamps.
    [004] LED lamps are also used outside the field of street lamp systems. For example, North American publication No. 2008/00025013 A1 describes an LED lamp for use in dental examinations, and aims to reduce shadows so that dentists can get a clear view of the inside of a patient's mouth. Solar cells are also used outside the field of lamp technology for broader applicability for general electrical loads. For example, U.S. Patent Publication No. 2011/0193515 A1 describes a solar energy management system that aims to provide management of electrical energy conversion by a photovoltaic cell module, providing the electrical energy converted to an external charge, and storing the electrical energy converted into a battery. Either way, the electricity available for a lamp decreases by a percentage, the brightness of the lamp decreases by a larger percentage. At some point, the lamp does not light, even when there is only a small amount of current supplied to the lamp.
    [005] The inventors carried out a study to reveal the key issues of the matrix cause for this problem of street lamps often left in the dark; and then they invented the system's designs to overcome this issue; as disclosed in that patent disclosure. BRIEF SUMMARY
    [006] At least one modality described here refers to a device for channeling electricity from a source of electrical energy to a lamp when the lamp is consuming electricity, and in doing so adjusts the amount of energy channeled to the lamp less as a function of the energy available in the electrical energy source. In doing so, a reduction in the energy available at the electrical source causes a proportionately less reduction in the lamp's brightness. This could be achieved by passing electricity through a passive network of resistors and diodes on their way from the electrical source to the lamp, which reduces the device's energy consumption. In one example, the source of electrical energy could be a battery that is charged by one or more solar panels. In this case, the device can also channel electricity from the solar panel (s) to the battery.
    [007] This Summary is provided to simplify the selection of concepts that are described in greater detail below in the Detailed Description. This Summary is not intended to identify key characteristics or essential characteristics of the claimed matter, nor is it intended to be used as an aid in determining the scope of the claimed matter. BRIEF DESCRIPTION OF THE DRAWINGS
    [008] In order to describe the way in which the advantages and characteristics described above can be obtained, as well as others, a more particular description of various modalities will be presented with reference to the attached drawings. With the understanding that these drawings illustrate only sample modalities and should not, therefore, be considered limiting the scope of the invention, the modalities will be described and explained with greater specificity and detail through the use of the attached drawings, in which:
    [009] Figure 1 illustrates in an abstract way a solar panel lamp system according to the principles described here.
    [010] Figure 2 illustrates an example of a step function of how the energy sent to the lamp by the controller can be reduced as a function of the available electrical energy remaining in the battery.
    [011] Figure 3 illustrates an example of a continuous function of how the energy sent to the lamp by the controller can be reduced as a function of the available electrical energy remaining in the battery.
    [012] Figure 4 illustrates an example of a Light Emitting Diode (Lamp) response.
    [013] Figure 5 illustrates an example of a passive network of resistors and diodes that can be used to send a reduced amount of electrical energy to the lamp when the available electrical energy remaining in the battery is reduced. DETAILED DESCRIPTION
    [014] The principles described here referred to a technology for charging a lamp that potentially includes a passive network of diodes and resistors. The lamp design includes a system control unit (such as a control box) that allows for greater resistance to lighting over a longer continuous series of rainy days compared to commercial lamps even with the same specific solar panel and battery.
    [015] The lamp can be operated for all the capacity of the stored energy available in the battery. As the stored energy of the battery decreases, the energy consumption of the system is reduced and the efficiency of the system is increased, while maintaining the lighting above the required brightness. In other words, the new system can continuously (or step by step) increase efficiency as the energy stored in the battery runs out.
    [016] Lamps charged with solar energy use solar panels to charge batteries during sunny conditions (hereinafter “sunny days”) when significant numbers of photons originating from the sun fall on the solar panel. However, there are also dark conditions in which less photons or no photons from the sun fall on the solar panel. For example, dark conditions certainly exist at night, but they can also exist at dawn, at dusk, or on very cloudy days (hereinafter “dark nights or days”, or “rainy days”) when a heavy cloud, fog, a combination of fog and smoke, rain, fog or any other impediment does not let much of the sun's energy reach the solar panel.
    [017] Dark days do happen with some intensity in frequency depending on weather patterns, the time of year, and the region of the Earth. To deal with this, it is assumed that lamps charged with solar energy will sustain several nights with lighting for a certain period promised in the absence of sunlight (for example, during consecutive dark days). Currently, the period promised by many solar lamp suppliers is three consecutive dark days. However, according to a study by the inventors (described in more detail below), existing commercial lamps charged with solar energy cannot sustain their lighting for three consecutive dark days in very normal and commonly encountered situations.
    [018] Solar lamp systems include four subsystems including 1) the solar panel that receives photons from the sun, and converts a portion of the corresponding light energy into electricity, 2) a battery that receives and stores the electricity generated by the solar panel, 3 ) a lamp that consumes battery electricity when the lamp is about to emit light, and 4) a controller that controls when the lamp is on and off; and protects the battery from overload or very low charge conditions. According to the principles described here, when combining the built lamp with the invented passive network, the controller performs more than just the functions indicated above, but also controls how much electrical power is supplied to the lamp when the lamp is on.
    [019] When replacing the lamp and the associated controller with modalities according to the inventive principles described here, the solar-charged lamp system can provide a greater brightness in the lighting (better than the specified commercial) in the first three nights when three consecutive dark days take place, starting with full battery storage capacity. After that, the lamp system can still maintain lighting above the required brightness (specified commercial) for three additional nights without any input of solar energy for six consecutive days (that is, if there are six consecutive dark days). In addition, this can be done at a reduced cost compared to the commercial system in some modalities.
    [020] When optimized, with the cost of the system restricted to below that of solar-charged street lamps, certain modalities of a solar-charged lamp system described here can sustain light during dark conditions in the event of more nine consecutive dark days while continuing to provide light above the required levels. These modes can provide a better shine than commercial systems for the first three days. The system then continues to provide more than 90 percent brightness (compared to the previous day) for six consecutive extra dark days without a lack of light during dark conditions. In addition, this system transitions back to provide light for more than three additional nights if there are three other consecutive dark days, with only 4 effective hours of sunlight on the tenth day.
    [021] The resulting street lamps charged with solar energy according to at least some of the modalities described here are easily found; and also provide excellent performance. Thus, modalities described here can provide street lamps charged with effective solar energy at an affordable cost with excellent performance; among many other applications. THE STUDY
    [022] The inventors conducted a study that shows that existing street lamps charged with solar energy cannot sustain lighting for three consecutive dark days under some very real, common and easily encountered conditions. This study took into account the nature and design parameters of commercial solar lamps; and then examined those dollar lamps in some situations easily found from normal operations with solar-charged street lamps. The study reveals the main reasons behind the reasons why commercial solar-charged street lamps cannot sustain three consecutive dark days in concrete situations.
    [023] Lamps charged with solar energy use solar panels to charge batteries during a sunny day. Then, they discharge the batteries by turning on the lamps to illuminate the dark nights. Therefore, the following natural data relating to sunlight, dark hours requiring lighting, and the like, have been assessed along with the characteristics of commonly used solar panels, batteries, and control boxes.
    [024] Depending on the seasons, the effective daily amount of sunlight varies from 3 to 4.5 hours in most places suitable for installing lamps charged with solar energy. The required lighting time (due to darkness) ranged from 8 to 14 hours a day in these locations. In addition, the season where lighting was required for the longest time was often associated with the shortest number of hours with effective sunlight. Therefore, the design of the stand-alone system would typically require approximately 4 hours of exposure of the solar panel to sunlight to charge the battery with adequate energy for lamp consumption of approximately 12 hours of lighting (and 24 hours of operation of the control box a control box operates continuously).
    [025] The electrical energy converted from the solar panel is usually stored in “12 volt” batteries in the commercial system. The so-called “12 volt” battery will be operated in a normal range within its maximum terminal voltage (Vx), which can be around 13.6 volts, and its minimum voltage (Vn), which can be in about 10.5 volts. Unusual operations (or overcharging a battery beyond Vx or discharging a battery to less than Vn) can damage the battery by shortening its life, which involves unnecessary expense. Thus, unusual over-charge or over-discharge battery operations are not desirable, nor are they recommended. Thus, the commercial system designs a control unit to constantly monitor the terminal voltage of the battery to turn off solar charging when it reaches Vx, and turn off the lamp when it reaches Vn.
    [026] The battery's energy storage capacity, Bx, is measured in ampere hours (for example, Bx = 150 ampere hours). The energy storage capacity Bx is defined as the integral time (in hours) of the output current through the battery (in amps) while the terminal voltage of the battery is discharged from the maximum terminal voltage Vx to the minimum terminal voltage Vn. Note that each ampere-hour represents a different amount of energy in the battery; because the energy depends on what the terminal voltage was when the ampere-hour was reduced. In addition, a different battery could store slightly different amounts of energy at the same terminal voltage for each amp-hour; because the internal conversion resistances of chemical / electrical energy conversion in each of the batteries and in all of them can be different. Therefore, the same energy consumption (watt-hour) would have a different value of ampere hours at a different terminal voltage of the same battery. In other words, energy consumption would not be the exact same value of ampere-hours at the same terminal voltage of different batteries.
    [027] Several design parameters will now be defined. The system's daily energy consumption (including lighting, operations control, and inefficiency) is "D". The system's minimum daily energy consumption is “Dn”. The maximum daily energy consumption of the system is “Dx”. The electrical energy converted daily from the solar panel outlet and stored in the battery is "S". Its average value in 4 hours of effective daily sunlight is "Sa" and its maximum value is "Sx"; its minimum is 0. The electrical energy stored in the battery is “B”. The minimum energy in battery “Bn” is the minimum energy stored in the battery (ie, Bn = 0) which occurs when the battery terminal voltage V is at its minimum value Vn. The maximum energy in the battery “Bx” is the energy stored in the battery when the battery terminal voltage V is at its maximum value Vx. Bx is also called the battery capacity. Commercially, Bx is represented in ampere hours. Therefore, all power units (B, S or D) shown here are converted to ampere-hours of the used battery, unless otherwise indicated.
    [028] Today, the solar panel is one of the main responsible for the cost and the most expensive of the four solar panel subsystems (which include the solar panel, the battery, the lamp, and the controller). Commercial solar lamp systems are therefore designed for minimal use of the solar panel to maximize an affordable cost for the system. The existing commercial solar-powered lamp systems all use 1.15Dx> Sa> 1.1 Dx. In other words, the size of the panel is large enough that an effective day of sunlight is sufficient to charge the batteries enough to supply the electrical energy (“Sa”) in addition to 110 percent of the maximum energy consumption one day (“Dx”); but definitely less than 115 percent of the maximum energy consumption for a day (“Dx”).
    [029] Currently, the battery is the second responsible for the cost of the four solar lamp subsystems. Most commercial solar lamp suppliers design their maximum Bx battery storage capacity to be 4Dx> Bx> 3.3Dx. In other words, a fully charged battery will be sufficient to provide light repeatedly for 3.3 to 4 days of maximum energy consumption. Some solar powered commercial lamp designers have increased the total storage capacity of the Bx battery to up to 7Dx.
    [030] They also design their lighting and control subsystem (for example, the lamp) to keep the lighting energy consumption “P” (that is, the amount of energy drawn from the battery to operate the lamp) constant, or at least independent of the terminal voltage. It must be remembered that the terminal voltage V is a function of the energy B stored in the battery. Thus, the daily energy consumption of the system (in watt-hours) D is expressed as D = (P x T) + O, where T represents the hours with daylight (average ~ 12 hours), and O is the consumption of operating energy for 24 hours other than lighting (used by the control box).
    [031] The following is a summary of the main features of existing commercial solar panel projects:
    [032] (I) The energy consumption for the daily operation of the system (including lighting throughout the night and operation of the control box for 24 hours) is designed to be: Dx> D = (P x T) + O watt- hour, where P, T, and O are defined above; while P is designed to have an almost constant consumption in watts.
    [033] (II) The size of the solar panel (to provide “S” electrical energy in watt-hours for charging on an effective day in the sun) is designed to be 1.15Dx> Sa> 1.1 Dx in watt- hour, with Sa defined above.
    [034] (III) The battery (used to store electrical energy from the solar panel and to supply electrical energy for the operation of the system) is designed to be: 7Dx> Bx> 3.3Dx, while Bx is at maximum capacity.
    [035] As the daily energy consumption D is less than the maximum daily energy consumption of the Dx system, and given that the battery was designed so that: 7Dx> Bx> 3.3 Dx, it was generally considered that the conventional design can guarantee proper operation for three consecutive rainy days. However, this is not the case, as will be explained now.
    [036] The fact is that with the daily supply of solar energy subtracted from the required daily energy consumption, there is only a very small amount of energy that can be gained by the battery to increase the stored energy on any given day. Under normal operation, the minimum consecutive days of sunshine required to charge the battery from B = 0 to B = Bx using this residual energy would be: ((Bx) minimum) / (maximum residue of (S - D)). Since the minimum Bx is equal to 3.3Dx, and given that the maximum residue of (SD) would be equal to 1.15Dx - Dn, the expression for the minimum of sunny days can be expressed as 3.3Dx / (1 , 15Dx - Dn). However, this value is approximately equal to 3.3Dx / (1.15Dx - Dx). Normally, it would take 20 to 50 consecutive days with normal sun to charge the battery's capacity to recover complete energy storage after the battery has been discharged by existing commercial products. Any extra dark days during these load days would add at least six more days to your required recovery time to reach your full energy storage state. When a statistical code was applied (using the random method) to simulate the remaining energy in the battery storage on any given dawn, under the most optimistic design conditions allowed, the simulation results showed that it would be a rare situation B> (3D - Sx). Therefore, it would be very safe to assume that B <(3D -Sx) at the dawn of most operating days. In other words, the following situation analysis is adequate for most of the time that the system is operating (very common and frequently encountered situations).
    [037] Even when the total commercial maximum capacity for the projected battery is assumed (Bx = 7Dx), there are always many real operational situations that together can lead the system to reach a state in which the remaining energy stored in the battery, B, is less than that of (3D -M * Sx) at dawn on any given day; with M = 1, or M + 2. The system may encounter a situation where the next daytime is a good day of average sunshine followed by 3 or more dark days in a row. Such a system cannot provide three additional nights of lighting.
    [038] For M = 1, this means B = (3D - Sx) <(3D - 1,15Dx) <(3-1,15) * D. In other words, the remaining battery power at dawn is less than 1.85 days of operating power. Then, the solar panel can only charge the battery for B = (3D - Sx + Sa) (on the next sunny day). Since Sx> Sa, the value of B is definitely less than 3D immediately before the three consecutive rainy days arrive. The system definitely cannot provide full night lighting on the third night.
    [039] For M = 2, the remaining energy in the battery may be less than 0.7 of the day at dawn. In that case, there would be no lighting on the third note during the three consecutive rainy days.
    [040] When the battery is discharged at dawn, or before dawn on a given day, then the lamp can provide light during the first night and part of the second night, but there would be no light at all on the third night.
    [041] The worst situation would be that the battery would be discharged at dawn or before dawn on the given day and there would be a sequence of more than three consecutive rainy days with no sun after dawn on the given day. In this case, there will be no light at night.
    [042] The above situations are very common, normal and normally encountered operating situations. Therefore, the above situation analysis clearly shows that, under energy consumption projects for constant lighting, even using the maximum commercial designed battery capacities, commercial lamps charged with solar energy with the currently designed solar panel recharging capacity they will not deliver on their promise to "sustain lighting whenever there are 3 consecutive dark days". This is because at the time of battery drain, and then, these systems can only provide about another day (not three more days) of illumination with sunlight in the daily average.
    [043] To further illustrate the study above and reveal the root cause of this issue, let's take a commercial product as the worst example: a commercial street lamp was purchased (with a 130W solar panel, two 110 Ahr batteries). This lamp provides about 1600 lumens of light emission with approximately 28W of energy for constant lighting and a control box consuming approximately 6W of power on average. The average energy charged in the battery (Sa) through the 130W solar panel converting 4 effective daily hours of sunlight is approximately 43.3 Ahr. The daily energy consumption of this street lamp (with 12 hours of lighting and 24 hours of operation from the control box) is approximately 40 Ahr. The net energy gain from solar energy (subtract daily consumption) is only about 3.3 Ahr. This means that it would take more than 12 consecutive days of sunshine (12 x 3.3 Ahr = 39.6 Ahr) to balance the energy deficit caused by 1 day of energy deficit darkness (approximately 40 Ahr) for this light bulb. Street. The recovery period from its unloaded state to complete storage would take 220 / 3.3 = 66.7 consecutive days of sunshine. This street lamp was installed in a location close to central China with more than 4 hours of annual average effective sunlight, and a free space to adequately receive normal sunlight. She started with a full-capacity battery and operated only for less than 20 days (more than two years ago) to make her first “depleted battery” condition happen. After that, this street lamp started to provide light for about one night followed by each sunny day; and has never fulfilled its promise to "sustain lighting for 3 consecutive dark days" since then. Of course, this lamp has also encountered many other additional “battery depleted” conditions since its installation more than two years earlier.
    [044] One way to keep the promise of continuous lighting for more than three consecutive dark days is to increase the size of the solar panel to provide a factor of three when recharging. In this case, every daily solar energy supply can definitely support the system's energy consumption for 3 days; even when the battery was discharged at dawn on a sunny day. However, this can also lead to a prohibitive cost; and decreases purchasing power. CONCLUSION OF THE STUDY
    [045] From the study, the inventors found that there are three key ingredients for lamps charged with sunlight to fulfill their promise to sustain lighting for more than three consecutive dark days: (1) the system must have a battery capacity large enough (Bx> 3Dx), (2) the system must have a solar panel large enough for Sa> 3Dx, and (3) the control box must reduce its daily energy consumption to an insignificant level so that Dx can be substantially reduced. However, at the cost of the subsystems (especially the solar panel and battery), by imposing the two ingredients in “constant lighting energy” projects as in commercial products, even with the free help of the third ingredient, the resulting systems may end finding the required lighting - but at a prohibitive cost, or taking into account purchasing power - but without providing enough brightness. THE INVENTIONS:
    [046] The inventors also invented new LED lamp designs with passive network LED (chips) and resistors as well as the associated control box to (overcome this issue) provide extra resistance when there are many consecutive dark days; even when using the same solar panel and battery as the commercial system. The steps of the invention are described below: I. Passive network to shape the l-V characteristic of the LED lamp:
    [047] By trial and error, the inventors have found that they can shape the l-V characteristic of LED lamps using a passive network of LEDs and resistors. They also found that they can match the network with some of the theoretically selected (“desirable”) l-V characteristics. In other words, its first step is to invent the shape of the l-V characteristic of the LED lamp through an LED network and resistor. II. Identify the desired characteristics l-V via theoretical analysis: 11 .A. Identify the l-V to operate across the entire battery storage range:
    [048] Through theoretical analysis, the inventors identified the appropriate l-V characteristics for the LED lamp that allowed the lamp to operate over the entire energy storage range in the battery; which was characterized by its terminal voltage range (for example, 10.5 to 13.5 volts for a “12 volt battery”). This means that these LED lamps would vary their energy consumption depending on the battery terminal voltage; P (v). 12 .B. Identify the l-V to increase efficiency when the battery is low:
    [049] There was a subsequent analysis and selection from those identified above, to obtain a group of l-V characteristics that can uniformly improve its effectiveness when its terminal voltage decreases over the battery voltage range. 11 .C. Identify the L-V to avoid overloading or over-discharging:
    [050] As these LED lamps would vary their energy consumption, P (v) as a function of the battery terminal voltage; the inventors also identified the l-V of these lamps consuming all the charged daily energy (D (Vx)> Sx) when the battery is in a state of total energy storage (B = Bx). This prevents the battery from overcharging.
    [051] The inventors also identified the l-V of these lamps consuming less than 1/5 of the daily energy charged by the solar panel when the battery's energy storage is close to being discharged; closer to unloaded, the less it consumes. The value of D (v) is very low when v approaches v = Vn; so that D (v ~ Vn) <0.1 Sa. And it approaches zero energy consumption in the state of discharged battery (P (Vn) <1 watt); preventing the battery from being excessively discharged. III. Integrate all of the above inventions into LED lamp designs:
    [052] The inventors shaped the l-V characteristic of a lamp using passive LED network and resistors to match the “appropriate” l-V curve. In addition, prototypes were built to verify that this lamp can actually be operated across the entire battery energy storage range. Systems can also increase their effectiveness when battery energy storage is decreasing to provide the required brightness. In other words, the new system can continually (or step by step) increase efficiency when battery energy storage is decreasing; and it also uses all its energy storage capacity. In addition, these prototypes have also been shown to prevent the battery from overcharging or over-discharging. IV. Design of a control box to consume energy with a negligible amount:
    [053] As the LED lamps designed above can also provide the functions of preventing the battery from being overcharged or over-discharged, the control box can be relieved of its “battery protection” function (which consumes a significant amount of energy ). Thus, this would allow to design a control box to perform only the functions of connecting the battery charging from the solar panel (or not), discharging electricity from the battery to the LED lamps for lighting (or not). Therefore, this control box was designed using two blocking relays to perform these two functions. The designed control box then consumes a negligible amount of energy (<0.001 ampere-hour daily) which can increase the resistance of the illumination even more. V. Optimize the design system
    [054] Resistors in the network are not light emitting elements; they consume energy without contributing to lighting. The inventors therefore checked the network to eliminate any unnecessary resistance. Thus, the lighting resistance of the projected system is further enhanced. In addition, the inventors carried out statistical code simulations to map the space allowed for the design parameters. The results effectively lead us to optimize the correspondence of subsystems; and provide the path to minimize the cost of the system and maximize the system's performance. THE RESULTS OF IMPLEMENTING THE INVENTIONS
    [055] The principles described here, on the other hand, change the design of the controller and the lamps. The result is that systems can increase their efficiency during the discharge of their energy storage. The lamps can also be operated at full battery energy storage capacity to provide the above required brightness. Thus, this system can provide extra resistance to lighting when there are many dark days in a row; even when using the same solar panel and battery. In other words, the modalities described here can effect the reduction in energy consumption much faster than the reduction in brightness due to the increased efficiency experienced in reducing energy consumption. Thus, the energy recharged in one day from the existing solar panel can guarantee reduced energy operation for more than three days, even with the same solar panel and battery.
    [056] Therefore, the lighting subsystem according to the modalities described here varies its energy consumption according to the amount of electrical energy stored in the batteries that support the lamps. Since the remaining energy stored in a battery can be characterized by its terminal voltage value V, this invention projects the lighting energy to be P = P (V), as a function of V (the terminal voltage of the battery). Thus, the lamps are designed to consume less energy when the terminal voltage of the batteries is lower. The required Dx is low enough when battery power is in its low storage stage, so that the current solar panel size used in the commercial system can provide enough Sa to meet Sa> 3Dx for that reduced Dx.
    [057] In order to preserve the ability to provide the required brightness, the lighting subsystem is designed so that it can increase its efficiency when the energy in the battery storage is running out. In other words, the less energy stored in the battery, the less it is consumed by the lamps; and yet the lamp still provides the brightness required for lighting, increasing the efficiency of the system when battery power is discharging. This is because the reduction in lighting energy consumption is proportionally much faster than the resulting reduction in brightness.
    [058] Furthermore, as the lighting subsystem can vary its energy consumption, this project was also carried out on its lamps to consume all the charged daily energy (D (Vx)> Sx) when the battery is in its storage state maximum energy (B = Bx); thus avoiding the battery overload situation (shown as modalities). This invention further designed its lamps to consume less than a quarter of the daily energy charged by the solar panel when the battery energy storage is close to the discharged condition. The closer to the fully discharged condition, the less the lamp consumes, approaching zero energy consumption in the low battery state (D (Vπ) <1 watt); avoiding the situation of excess discharge.
    [059] Thus, the lighting subsystem modalities, described above, can obtain two benefits: (1) a solar charge on a sunny day can store enough energy in the battery for more than three days with night lighting without other power supply. energy; as shown in the modalities; and (2) excess overload or discharge is avoided without active intervention from the control box. The modes only allow a controller to perform the functions of switching the battery charging and discharging on / off. This swap function consumes a negligible amount of energy per day.
    [060] As shown in the modalities; by replacing the LED lighting units and the associated control unit incorporating this invention, the commercial system can then provide a lower lighting brightness for the first three nights; starting with maximum battery storage capacity. After that, he can still keep the lighting above the required brightness for three more nights without any energy input for those 6 consecutive days. In addition, this system is smaller than the original system.
    [061] When optimized in the execution of the system, and also with the cost of the system restricted to being below that of commercial street lamps charged with solar energy, the new designed systems can withstand more than nine consecutive days of rain. In addition, it provides a better glow than commercial solar panels for the first three nights. The system then continues to provide more than 0.9 brightness over the previous day for six more consecutive dark days without turning the light off. In addition, this system provides light for more than three additional nights, with only 4 hours of effective sunlight on the tenth day.
    [062] Having described the general principles of the modalities described here, the modalities themselves will now be described in relation to Figures 1 to 5.
    [063] Figure 1 illustrates a lamp system charged with solar energy 100 that includes four subsystems such as a battery 110, a solar panel 120, a lamp 130, and a controller 140. Light from the sun strikes the solar panel 120. Solar panel 120 can be a single solar panel or a network of solar panels. In addition, the solar panel may be a solar panel that already exists, or it may be a solar panel to be developed in the future. However, as mentioned above, better performance can be obtained even using existing solar panels. The solar panel 120 converts at least a part of the incident light into electricity with a determined efficiency that can vary depending on the type of solar panel.
    [064] An energy collection routing circuit 121 is configured to route electrical energy from solar panel 120 to a battery 110 when solar panel 120 and battery 110 are coupled as illustrated. In this way, the energy collection routing circuit 121 channels the electricity from the solar panel 120 to the battery 110 to charge the battery and thereby increase its energy storage during sunny conditions. Although battery 120 can be any type of battery, the principles described here allow for improved performance even using the same battery as conventional lamp systems. In fact, the principles described here can be extended to a case in which element 110 is any source of electrical energy such as, for example, a support for a power supply device by means of a power grid. In this case, there would be no need for the lamp system 100 to include solar panel 120 or the energy collection routing circuit 121. Thus, the lamp system may have no physical "battery". In fact, battery 110 can be replaced with an "electrical power source". Battery 110 will be described below and is just one example of such an electric power source.
    [065] An energy consumption routing circuit 122 is configured to selectively route electrical power from battery 110 (or, more generally, the “electrical power source”) to a lamp 130 when battery 110 and lamp 130 are attached as illustrated. In this way, the energy consumption routing circuit 122 channels electricity from battery 110 (or, more generally, the "electrical power source") to lamp 130 when the lamp is consuming electricity during low light conditions. In some embodiments, the lamp 130 can emit light from one or more light emitting diodes (LED) and / or it can be a street lamp that is placed over a street, road, sidewalk or area.
    [066] A controller 140 is configured to selectively channel electricity from solar panel 120 to battery 110 through the energy collection routing circuit 121 during light conditions, and selectively configured to channel electricity from battery 110 to lamp 130 during lighting conditions. little light. Controller 140 can be very simple since it performs a simple on-off function. Consequently, the daily energy consumed by the controller can be very low as mentioned above. Depending on the source of electrical energy, in some cases (such as the case of an electric power grid) this selective channeling will not be necessary.
    [067] The solar lamp system 100 is configured so that when the energy consumption routing circuit 122 routes electricity from battery 110 (or, more generally, the “source of electrical energy”) to the lamp 130 , the system 100 adjusts the amount of energy distributed along the energy consumption routing circuit 122 to less as a function of a remaining amount of electricity in the battery. As mentioned above, as the terminal voltage V is a function of the remaining electrical energy in the battery, this could be achieved using the terminal voltage. In the most general case of an electrical energy source, this can be done based on any parameter that relates to the energy available in the electrical energy source. In addition, as mentioned above, this reduction in energy consumption can be proportionally greater than the reduction in light emissions due to the greater efficiency at lower energy consumption.
    [068] In some modalities, the reduction in energy consumption when the terminal voltage (or more generally the energy or force available in the electrical energy source) decreases can be achieved using a passive network. For example, the passive network 131 can be included inside the lamp, and can include LED diodes, and also potentially resistors. A specific project will be described with reference to Figure 5. However, the principles of the present invention are not limited to that project. For example, a passive network can route current through voltage drops so that when the voltage at the passive re-inlet is higher (reflecting a higher battery terminal voltage), more LED diodes in the passive network they are actively emitting than when the voltage at the passive network input is lower. Thus, as the terminal voltage decreases, so does the number and intensity of the LED diodes that are emitting in the passive network.
    [069] The principles described here are not limited to the specific functional relationship between the energy consumed by the lamp 130 and the terminal voltage of the battery 110. However, it is more advantageous when the relationship is defined so that a reduction in energy consumption causes a proportionally less reduction in light emissions.
    [070] Figure 2 illustrates an approximate graphical representation 200 of a relationship between energy consumption and luminosity for a lamp built with a network of light-emitting diodes and resistors. The luminosity is on the vertical geometric axis 201, and the electric energy is on the horizontal geometric axis 202. The relationship is approximate with curve 210 just to show the abstract principles. The precise shape of the curve can differ according to the type of LEDs of which the lamp is understood, and the design of the lamp as well; especially its thermal dissipation that determines the temperature at the light-emitting junctions. The junction temperature can critically affect the amount of light output; thus, the thermal dissipation capacity critically determines the luminance function as a function of the power supply to the LED.
    [071] Nevertheless, each LED lamp has an inactive region 211 in which the electrical power is close to or below the limit of the LED diode and is therefore too low to cause significant light emissions from the diode; even part of region 211 can provide very high efficiency, but not a lot of light.
    [072] Each LED lamp also has a linear region 212 that is above the limit of the LED diode, causing an approximate linear relationship between change in electrical energy and change in luminosity. This region maintains an almost constant efficiency with a significant amount of light.
    [073] Each LED lamp also has a 213 saturation region in which increases in electrical energy cause a proportionately less increase in brightness. In other words, in the 213 saturation region, reductions in electrical energy cause a proportionately less reduction in luminosity. It is in the saturation region that most LED lamps operate. Consequently, reductions in the electrical energy provided to the lamp (perhaps from the 221 to 222 quantity), cause a proportionately less reduction in brightness (from the 231 to 232 quantity) as illustrated. There is another important parameter indicated in Figure 2. The minimum amount of light required is indicated as line 233; and the corresponding power is indicated as line 223. This line 223 can fall within the region defined as 212. Thus, the lamps will be designed to operate in the region above 212a to provide more than the specified light level. In fact, the corresponding voltage of the 213 power region (for example, 12.3 to 13.5 volts) will coincide with most of the projected operational power region (above the 212b region). For this project, the corresponding battery voltage range for the projected operating region is 11.5 to 13.5 volts. In other words, the l-V characteristic of the designed lamps is formed to meet this requirement.
    [074] There is no limited functional relationship between the energy sent to the lamp and the terminal voltage. However, Figure 3 illustrates a graphical relation 300 in which relation 301 is a step function. Figure 4 illustrates a graphical relation 400 in which the relation 401 is a continuous function. The effective function can be a combination of step function and continuous function.
    [075] Figure 5 illustrates a passive network 500 that can be used as the passive network 131 of Figure 1. The passive network 500 includes multiple passive components including a combination of LED diodes and resistors. As shown in Figure 5, a lighting set consists of 24 LEDs (labeled LD1 to LD24) that are networked into two groups, each group coupled in parallel between the battery terminals V + and V-.
    [076] One of the LED groups consists of a serial connection of four LED subgroups. Each LED subgroup consists of different numbers of LEDs in parallel connections. For example, a LED group consists of a series of four subgroups, where the first LED subgroup consists of four parallel LEDs LD3 to LD6, the second LED subgroup consists of three parallel LEDs LD10 to LD12, the third LED subgroup consists of three parallel LEDs LD16 to LD18, and the fourth LED subgroup consists of four parallel LEDs LD21 to LD24. The other of the LED groups also consists of a serial connection of four LED subgroups consisting of different numbers of LEDs in parallel. For example, this other LED group consists of a series of four subgroups, where the first LED subgroup consists of two parallel LEDs LD1 to LD2, the second LED subgroup consists of three parallel LEDs LD7 to LD9, the third subgroup of LED consists of three parallel LEDs LD13 to LD15, and the fourth LED subgroup consists of two parallel LEDs LD19 to LD20. Note that the first subgroup of LEDs LD3 to LD6 in the first LED group also has 16 resistors coupled in parallel R1 to R16, and that the fourth subgroup of LEDs LD21 to LD24 also has coupled 16 resistors R17 to R32.
    [077] This LED network can be seen as a network of variable resistances determined by the voltage; and in this way the network would carry different currents when the terminal voltage was different. The lower the terminal voltage, the lower the current in that network. Thus, the lower the terminal voltage, the lower the amount of energy consumed by the network.
    [078] Table 1 lists the measured energy consumptions of this set (network) with terminal voltages ranging from 13.5 volts to 10.5 volts as follows:


    [079] As shown, power consumption has steadily decreased from 40.2 watts to 13.5 volts to 6.67 watts to 11.5 volts (by a factor of about 6).
    [080] Certainly, the light output of this set (LED network) also varies with the conveyor current. The lower the current carried, the lower the light output that can be produced. In other words, the lower the energy consumed by this LED network, the lower the light output that the LED network will provide. If the commercially specified minimum light output requirement has been imposed, Lm> 15001m; and it is intended to use 3 parallel sets to provide lighting. The light output requirement for each set must be above 500 lm.
    [081] As shown in Table 1, the measured light output decreased from 2331.6 lumens with a power consumption of 40.2 watts (at 13.5 volts) evenly to 580.7 lumens with a power consumption of 6.67 watts (at 11.5 volts). It can be expected from this that the light output of this lamp with 3 combined sets will emit more than 6994.8 lm at 13.5 volts; and will emit more than 1740 lm when the battery terminal voltage is above 11.5 volts (which fulfills the requirement of lighting with more than 1500 lm).
    [082] Measurements made have determined that energy storage using two batteries purchased from 110 Ahr provides a combination of energy storage capacities of 220 Ahr. It was determined that with V = 10.5 to 11.5 volts they are around 50 Ahr; and also from 10.5 to 13.5 volts being about 225 Ahr. Thus, the production of energy from the discharge of a 220 Ahr battery from 13.5 volts to 11.5 volts must be an energy greater than 170 Ahr; more than (220 - 50) / 220 = 77.27% of the battery's energy capacity.
    [083] The time downloaded was also measured. The measurement performed uses a lamp that consists of 3 units of the lighting elements projected above. This lamp discharges a 220 Ahr battery from V = 13.5 volts to V = 11.5 volts, and then drops to 10.5 volts. The measured result shows that it takes more than 75 hours of discharge time to carry out the 13.5 to 11.5 volts experiment. Therefore, it is expected that the lamp can provide the light output required for more than 6 nights (with 12 hours of lighting per night). The remaining energy below 11.5 volts up to 10.5 volts can still provide a reduced light output for more than the additional 38 hours.
    [084] Thus, without power supply, the combined measured lighting time could exceed 9 nights (12 hours / night). The system can provide more than 6 nights of lighting above the required level, and an additional 3 nights at a reduced lighting level at the end. In addition, a normal sunny day (with 4 effective hours of sunlight on the tenth day) can bring the system back into energy storage to provide at least 3 nights of lighting.
    [085] When calculated, the efficiency of this set (LED grid) is increased uniformly from 58 lumens per watt at 13.5 volts to more than 87 lumens per watt at 11.5 volts. The calculated effective value increased up to 99.2 lm per watt at 10.5 volts; according to the data in the table.
    [086] The present invention can be incorporated in other specific forms without a departure from its spirit or essential characteristics. The described modalities must be considered in all aspects as illustrative and not restrictive. The scope of the invention is therefore indicated by the appended claims and not by the description provided. Any changes that fall within the meaning and scope of equivalence of the claims must be included within its scope.
    权利要求:
    Claims (18)
    [0001]
    1. Device (100) comprising: an energy consumption routing circuit (122) configured to selectively route electrical energy from an electrical power source (110) to a lamp (130) when the energy consumption routing circuit energy (122) is coupled to the electrical power source (110) and the lamp (130); CHARACTERIZED by the fact that when the energy consumption routing circuit (122) routes electricity from the electrical source (110) to the lamp (130), the device (100) is configured to adjust the amount downwards of energy sent along the energy consumption routing circuit (122) as a function (301, 401) of available energy in the electrical power source (110) based on determined lV characteristics of the lamp (130), so that the reduction in the energy available in the electric power source (110) causes a proportionally smaller reduction in the luminosity of the lamp (130), in which the device (100) is configured to adjust the amount of energy distributed throughout the energy consumption routing circuit (122) using a passive network (500) of a plurality of passive components (LD1-LD24, R1-R32) in the lamp (130).
    [0002]
    2. Device (100) according to claim 1, CHARACTERIZED by the fact that the plurality of passive components (LD1-LD24, R1-R32) includes a plurality of light-emitting diodes (LD1-LD24).
    [0003]
    3. Device according to claim 1, CHARACTERIZED by the fact that the plurality of passive components (LD1-LD24, R1-R32) includes a plurality of resistors (R1-R32).
    [0004]
    4. Device (100), according to claim 1, CHARACTERIZED by the fact that the function (301,401) includes a step function (301).
    [0005]
    5. Device (100) according to claim 1, CHARACTERIZED by the fact that the function (301.401) includes a continuous function (401).
    [0006]
    6. Device (100) according to claim 1, CHARACTERIZED by the fact that the source of electrical energy (110) is a battery (110).
    [0007]
    7. Device (100) according to claim 6, CHARACTERIZED by the fact that the function (301, 401) is a function of a terminal voltage (terminal volts) of the battery (110).
    [0008]
    8. Device (100), according to claim 6, CHARACTERIZED by the fact that it additionally comprises: an energy collection routing circuit (121) configured to route electrical energy from an electrical energy source (120) to the battery (110), when the energy collection routing circuit (121) is coupled to the electrical power source (120) and the battery (110).
    [0009]
    9. Device (100), according to claim 8, CHARACTERIZED by the fact that the electrical power source (120) coupled to the energy collection routing circuit (121) is a solar panel (120).
    [0010]
    10. Device (100) according to claim 1, CHARACTERIZED by the fact that it additionally comprises the lamp (130) coupled to the energy consumption routing circuit (122).
    [0011]
    11. Device (100) according to claim 1, CHARACTERIZED by the fact that the lamp (130) is a light-emitting diode (LED) lamp.
    [0012]
    12. Device (100) according to claim 1, CHARACTERIZED by the fact that the lamp (130) is a street lamp in an elevated position.
    [0013]
    13. Method for operating a lamp (130), CHARACTERIZED by the fact that it comprises: an act of channeling electricity from an electric power source (110) to a lamp (130) when the lamp (130) is consuming electricity; and an act of adjusting downwards the amount of energy channeled to the lamp (130) as a function (301, 401) of available energy in the electric power source (110) based on determined lV characteristics of the lamp (130), so that the reduction in the available energy in the electric power source (110) causes a proportionately smaller reduction in the luminosity of the lamp (130), in which the amount of energy channeled to the lamp (130) is adjusted using a passive network ( 500) of a plurality of passive components (LD1-LD24, R1-R32) in the lamp (130).
    [0014]
    14. Method according to claim 13, CHARACTERIZED by the fact that the function (301, 401) is a function of terminal voltage (terminal volts) of the electrical power source (110).
    [0015]
    15. Method, according to claim 13, CHARACTERIZED by the fact that the lamp (130) is a light emitting diode (LED) lamp.
    [0016]
    16. Method, according to claim 13, CHARACTERIZED by the fact that the lamp (130) is a street lamp in an elevated position
    [0017]
    17. Method, according to claim 13, CHARACTERIZED by the fact that the source of electrical energy (110) is a battery (110).
    [0018]
    18. Method, according to claim 17, CHARACTERIZED by the fact that it additionally comprises: an act of channeling electricity from a solar panel (120) to the battery (110), when the solar panel (120) is generating electricity.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112014013698B1|2020-11-03|device for charging a lamp and method for operating a lamp
    TWI533561B|2016-05-11|System and method for controlling solar cell lighting apparatus
    JP6371845B2|2018-08-08|Photovoltaic and battery operating system and method for controlling the same
    ES2677843T3|2018-08-07|Provision and procedure to dynamically manage electrical energy between an electrical energy source and an electrical load
    ES2748298T3|2020-03-16|A method and system for the optimal distribution of power between a battery and an electrical network
    US20110285354A1|2011-11-24|Rechargeable battery controlling circuit, rechargeable battery controlling device, independent power system and battery pack
    US20160094088A1|2016-03-31|Lighting unit having energy harvesting power management system
    ES2819975T3|2021-04-19|Loading / unloading control device
    JP5495217B1|2014-05-21|Overcharge prevention circuit, overdischarge prevention circuit, storage battery control device, independent power supply system and battery pack
    JP2016127617A|2016-07-11|Photovoltaic power generation system
    US11114861B2|2021-09-07|Power optimization for battery powered street lighting system
    JP2010051106A|2010-03-04|Power supply system
    KR102163719B1|2020-10-08|Sunlight street lamp and method for operating thereof
    JP6796432B2|2020-12-09|Power generation system
    CN107112772B|2022-03-15|Power optimization for battery-powered street light systems
    Rahman et al.2010|Proteus based simulation of a charge controller
    Ali et al.2018|Smart Solar Streets Lighting System
    Abed et al.2020|Energy Optimization for Solar Street Lighting Systems
    Nigim1990|Solar Powered Lighting System for the WestBank & Gaza Remote Areas
    CN108565907A|2018-09-21|A kind of charge/discharge control method, device, equipment and system
    同族专利:
    公开号 | 公开日
    ZA201404102B|2016-07-27|
    CL2014001483A1|2014-12-19|
    EP2788678A1|2014-10-15|
    CA2857497A1|2013-06-13|
    EP2788678A4|2016-01-06|
    MX2014006691A|2014-09-04|
    TW201325317A|2013-06-16|
    AU2012348380A1|2014-07-17|
    AU2012348380B2|2016-04-28|
    US20120200235A1|2012-08-09|
    JP2015505125A|2015-02-16|
    BR112014013698A8|2017-06-13|
    US8525441B2|2013-09-03|
    KR20140124357A|2014-10-24|
    RU2642823C2|2018-01-29|
    JP6211528B2|2017-10-11|
    CN104114938A|2014-10-22|
    MY170917A|2019-09-16|
    EP2788678B1|2021-12-08|
    PH12014501227A1|2014-09-08|
    SG11201402778PA|2014-10-30|
    BR112014013698A2|2017-06-13|
    WO2013085583A1|2013-06-13|
    RU2014127292A|2016-02-10|
    CN104114938B|2018-02-16|
    PH12014501227B1|2014-09-08|
    TWI478630B|2015-03-21|
    CO7081148A2|2014-10-10|
    JP2017157574A|2017-09-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4977351A|1986-11-18|1990-12-11|Bavco Manufacturing Company, Inc.|Emergency lighting system|
    JP2002016290A|2000-06-28|2002-01-18|Toshiba Lighting & Technology Corp|Led light source device|
    US6628089B2|2002-02-01|2003-09-30|Electronic Theatre Controls, Inc.|Extraction of accessory power from a signal supplied to a luminaire from a phase angle dimmer|
    US20050082989A1|2003-09-22|2005-04-21|Jones Dale G.|Process and apparatus for improving LED performance|
    US20080025013A1|2005-05-02|2008-01-31|Pelton & Crane|Led-powered dental operatory light|
    US7298097B2|2005-09-13|2007-11-20|On-Bright Electronics Co., Ltd.|Driver system and method with multi-function protection for cold-cathode fluorescent lamp and external-electrode fluorescent lamp|
    DE102007006438B4|2007-02-05|2014-12-11|Marc ALBRECHT|Circuit for the simultaneous activation of an arrangement of similar consumers|
    US8194061B2|2007-08-09|2012-06-05|Ee Systems Group Inc.|Process and system of power saving lighting|
    JP5192835B2|2008-01-30|2013-05-08|パナソニック株式会社|Light emitting device|
    JP5265937B2|2008-01-30|2013-08-14|パナソニック株式会社|Light emitting device|
    JP3146545U|2008-09-09|2008-11-20|晟明科技股▲分▼有限公司|Automatic control power saving device for solar energy lamp|
    US8096673B2|2008-10-22|2012-01-17|Chien-Chih Kuo|Auto-controlling power saving system for solar energy street lamps|
    CN101483952A|2009-01-14|2009-07-15|潘允|Intelligent solar road lamp control system and control method thereof|
    US20100225239A1|2009-03-04|2010-09-09|Purespectrum, Inc.|Methods and apparatus for a high power factor, high efficiency, dimmable, rapid starting cold cathode lighting ballast|
    TWI394349B|2010-02-05|2013-04-21|Univ Nat Chiao Tung|Solar power management system with maximum power tracking|
    EP2375856A1|2010-04-08|2011-10-12|Helvar Oy Ab|Transformer arrangement for protecting optoelectronics components|US11248755B2|2010-06-18|2022-02-15|Luminaid Lab, Llc|Inflatable solar-powered light|
    AU2012378999A1|2012-05-01|2014-12-18|Luminaid Lab, Llc|Inflatable solar-powered light|
    US8692470B2|2012-08-13|2014-04-08|LT LightingCorp.|Designs for control on solar power system with extreme low energy consumption|
    US9182090B2|2014-01-03|2015-11-10|Mpowerd, Inc.|Solar powered lamp|
    WO2014107621A2|2013-01-03|2014-07-10|Mpowerd, Inc.|Solar powered lamp|
    US8981668B2|2013-03-08|2015-03-17|LT LightingCorp.|Demand-side initiated dimmable LED lamp|
    US9912155B2|2013-05-31|2018-03-06|Philips Lighting Holding B.V.|Controlling power from cable to load|
    US9739429B2|2014-07-04|2017-08-22|Thierno Souleymane Bah|Light apparatus|
    CA2891165A1|2015-05-14|2016-11-14|Peter E. Freill|Lighting assembly, system and installation method for hardscapes and steps|
    USD932078S1|2015-07-14|2021-09-28|Luminaid Lab, Llc|Expandable light|
    US10760746B2|2016-11-04|2020-09-01|Luminaid Lab, Llc|Solar lamp with radial elements and electronics assembly contained in a watertight enclosure|
    WO2018085783A1|2016-11-04|2018-05-11|Luminaid Lab, Llc|Multi-powering solar lamps|
    JP2020536345A|2017-09-20|2020-12-10|１０６４４１３７ カナダ インコーポレイテッド|LED lighting system and its method|
    US11184831B2|2018-12-31|2021-11-23|Itron, Inc.|Solar-powered relay for coupling remotely-located leaf nodes to a wireless network|
    US11172423B2|2018-12-31|2021-11-09|Itron, Inc.|Solar-powered access point for load balancing network traffic across backhaul networks|
    CN110536524A|2019-08-15|2019-12-03|深圳市亿兆互联技术有限公司|Solar street light monitoring method based on lora|
    法律状态:
    2018-12-11| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-03-10| B06A| Patent application procedure suspended [chapter 6.1 patent gazette]|
    2020-06-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-11-03| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/09/2012, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US13/312,902|2011-12-06|
    US13/312,902|US8525441B2|2011-12-06|2011-12-06|Lamp powering technology|
    PCT/US2012/054280|WO2013085583A1|2011-12-06|2012-09-07|Lamp powering technology|
    [返回顶部]