• 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:
    Transmitter for Transmitting Power to an Inductively Receiver, Receiver for Receiving Power of an Inductively Transmitter, System for Inductively Transmitting Power from a Transmitter to a Receiver and Method for Inductively Transmitting Power from a Transmitter to a Receiver The invention relates to a system for inductively transmitting power from a transmitter (11) to a receiver (10), the receiver (10) comprising a signal generator for generating a signal, triggered by an event reflecting that the receiver is intended to receive power from the transmitter, transmitter wherein said signal is for activating said standby mode for activated mode; and comprising a signal transmitting coil (103) for transmitting said signal to said transmitter; said transmitter (11) comprising a signal receiving coil (112); a detector (114) for detecting said signal received by the receiving coil; and a unit (115) for activating the standby transmitter for activated mode upon detection of said signal.
    公开号:BR112012000665B1
    申请号:R112012000665-7
    申请日:2010-07-09
    公开日:2019-10-29
    发明作者:Van Wageningen Andries；Michiel De Boer Bart；Loef Christoph；Waffenschmidt Eberhard；Yseboodt Lennart；Anne Treffers Menno；Franke Pasveer Willem
    申请人:Koninl Philips Electronics Nv；Koninklijke Philips Nv；
    IPC主号:
    专利说明:

    TRANSMITTER FOR TRANSMITTING ELECTRIC ENERGY TO AN INDUCTIVELY RECEIVER, RECEIVER FOR RECEIVING ELECTRIC ENERGY FROM AN INDUCTIVELY TRANSMITTER, SYSTEM FOR TRANSMITTING ENERGY FROM A TRANSMITTER TO A RECEIVER AND METHOD OF TRANSMITTING AN ENTRY TO TRANSMITTING AN ENERGY TRANSMITTER
    FIELD OF THE INVENTION
    The invention relates to an inductive energy transfer system.
    HISTORY OF THE INVENTION
    In general, inductive power transmission systems are often used in many applications. They allow the supply of devices or charge of batteries (or capacitors) without electrical contacts.
    An inductive energy transmission system is carried out with the aid of inductive coupling, for example, known from WO 2008/050260. Such a system generally comprises a transmitter (also referred to as a transmission device) comprising at least one transmitting coil (also referred to as a primary coil) that can be energized, thereby generating an alternating magnetic field. The inductive energy system further comprises a receiver (also referred to as a receiving device) that must be charged or powered. In order to receive power, the receiver is provided with a receiving coil (also referred to as a secondary coil) coupled to the transmitting coil. The alternating magnetic field provided by at least one transmitting coil will induce a voltage in the receiving coil. This voltage can lead to a load on the receiver, for example, charging a battery or turning on a lamp or powering a mobile device.
    Normally, in order to save energy, when the transmitter does not transmit power to any receiver, the
    2/19 transmitter will be set to standby mode, which can also be referred to as sleep mode or idle mode. In standby mode, the entire transmitter is turned off or, at least, most components are turned off. When the transmitter is in standby mode, to initiate a power transmission, for example, the transmitter or a transmitter detection unit can be turned on regularly to detect the presence of a receiver; and upon detection of a receiver, the transmitter will be activated to communicate with the receiver and verify the receiver. If the receiver is a valid device, the transmitter will begin transmitting power. Unlike standby mode, the state in which the transmitter is turned on to communicate with the receiver and / or transmit power to the receiver is referred to as an activated mode.
    There may be a situation where a receiver is positioned on a transmitter for a considerable period of time without requiring power. The transmitter needs to be activated regularly, to check if the receiver needs power. It can save energy by applying long time intervals, for example, 5 minutes or more, to check if the device needs power. This is not convenient if the user or the application requires quick or instant activation of wireless power. The user, for example, may want to have his cell phone fully charged while it is positioned on the transmitter. If a call arrives, the mobile phone starts to consume energy from its battery. If hands-free mode is turned on, power consumption will increase. In this case, the transmitter must be activated quickly to prevent the battery from becoming partially discharged.
    Another example is a device that requires direct power and does not have, or only has a small battery or
    3/19 similar to store energy. For example, the device
    could be a lamp or similar, which is connected by user. In this case, the receiver Have to be activated instantly. GOAL AND SUMMARY OF INVENTIONIt is a goal of invention propose a method and a
    activation system, through a receiver, of a transmitter that is in standby mode for the activated mode.
    For this purpose, according to a first aspect, a method of transmitting energy inductively from a transmitter to a receiver is proposed. In this method, the receiver comprises a signal generator and a signal transmitting coil and the transmitter comprises a signal receiving coil. The method comprises the steps of: generating a signal by said signal generator, triggered by an event that reflects that the receiver is destined to receive energy from the transmitter, in which said signal is intended to activate said transmitter from the standby mode to the activated mode;
    transmitting said signal to said signal transmitting coil;
    detecting, by said transmitter, the signal received by said receiving coil by inducing a voltage or current in the coil;
    activate the transmitter from the standby mode to the activated mode after the detection of said signal.
    In summary, the invention proposes a solution that uses a signal transmitting coil of the receiver coupled with a signal receiving coil of the transmitter to get the activation (in the context of this invention, the terms wake up and activate are interchangeable) of the transmitter to start. from the receiving side. Compared to the solution where activation of the transmitter is initiated by the transmitter itself,
    4/19 for example, by detecting the presence of the receiver, the solution where the receiver initiates the awakening of the transmitter is more convenient in some situations. For example:
    The. a lamp with a receiver - if the lamp is turned on using its own switch, the receiver wakes up the transmitter;
    B. a mobile phone - the incoming call wakes up the transmitter;
    ç. alarm clock / radio / alarm light - the device wakes up at a certain time;
    d. laptop - the laptop is turned on, or awake from standby; changing the condition of the laptop triggers the transmitter to wake up.
    When the aforementioned mobile devices in which the receiver resides are positioned on a transmitter and do not need power for a considerable amount of time and the transmitter enters standby mode to save energy, the aforementioned events could be used to trigger awakening of the transmitter, without any extra action being required by the user.
    The invention also proposes a system comprising a transmitter and a receiver to initiate the awakening of the transmitter by the receiver.
    For this purpose, a transmitter is proposed comprising:
    - a signal receiving coil for receiving an activation signal from said transmitter from the standby mode to the activated mode; and a detector for detecting the signal received by said signal receiving coil;
    a unit to activate the transmitter from the standby mode to the activated mode after the detection of said signal.
    5/19
    A receiver is proposed comprising:
    a signal generator to generate a signal, when the receiver is triggered by an event that reflects that the receiver is destined to receive power from the transmitter, in which said signal is intended to activate said transmitter from standby to activated mode , and a signal transmitting coil for transmitting said signal to said transmitter.
    Advantageously, the invention proposes to use the primary transmitter coil as the signal receiving coil and the secondary receiver coil as the signal transmitting coil, thereby reducing the components required by the transmitter and receiver.
    To generate the signal, the receiver needs electricity. The invention also proposes the use of a battery or a self-powered element, that is, an energy converter to convert mechanical energy into electrical energy.
    Other aspects of the invention and detailed explanations will be given below.
    BRIEF DESCRIPTION OF THE DRAWINGS
    The particular aspects of the invention will now be explained in reference to the achievements described below and considered in relation to the accompanying drawings, in which identical parts or substeps are designated in the same way:
    Fig. 1 represents a block diagram of a transmission system according to an embodiment of the invention,
    Fig. 2 represents a flow chart for activating a transmitter by a receiver according to an embodiment of the invention,
    Fig. 3 represents an example of circuits on a transmitter to activate the transmitter,
    6/19
    Fig. 4 represents an example in one system for activate one transmitter by a receiver, Fig. 5 represents an example in one system for activate one transmitter by a receiver, Fig. 6 represents an example in one system for activate one transmitter by a receiver, Fig. 7 represents an example in one system for activate one transmitter by a receiver. Fig. 8 represents an example in circuits
    signal detection to activate the controller on the transmitter.
    DETAILED DESCRIPTION OF THE INVENTION
    Fig. 1 represents a block diagram of a transmission system according to an embodiment of the invention. The system comprises a transmitter 11 and a receiver 10. To illustrate the invention, it is assumed that receiver 10 has been positioned on the surface of transmitter 11 for some time without requiring power from transmitter 11, and transmitter 11 is in standby mode to save energy.
    Transmitter 11 comprises a power transmission unit 116 for transmitting power inductively to receiver 10. When transmitter 11 is in standby mode, power transmitting unit 116 is off.
    The receiver 10 comprises a power receiving unit 101 for receiving power inductively from the transmitter 11. The receiver 10 included in or connected to a mobile device is used to receive wireless power from the transmitter 11 and provide the received power for the device charge. mobile The mobile device could be, for example, a battery, cell phone, laptop, lamp, etc.
    Receiver 10 also comprises a signal transmitting coil 103 and transmitter 11 comprises a signal coil
    7/19 signal receiving coil 112. The signal transmitting coil 103 is coupled to the signal receiving coil 112, that is, the two coils are in close proximity.
    If the mobile device needs receiver 10 to receive power from transmitter 11, firstly, the transmitter needs to be activated from standby, that is, transmitter 11 needs to wake up. In other words, the condition of transmitter 11 has to be changed from standby to activated mode. The activated mode is the opposite of the standby mode. In the activated mode, the main components of the transmitter, for example, the transmission unit 116, are connected and the transmitter 11 is capable of communicating and / or transmitting energy to the receiver 10.
    To initiate activation of transmitter 11 by the receiver according to the invention, the receiver 10 comprises a signal generator 102 and a signal transmitting coil 103.
    Figure 2 represents a flow chart to activate transmitter 11 from standby mode to the mode activated by receiver 10. In step 201, triggered by an event that reflects that receiver 10 requests power, signal generator 102 is organized to generate a signal. The signal is intended to activate (wake up) transmitter 11 from standby to active mode. The generated signal is provided to the signal transmitting coil 103. In step 202, the signal is transmitted from the receiver 10 to the transmitter 11 through inductive coupling between the signal transmitting coil 103 and the signal receiving coil 112.
    The event that occurs at receiver 10 could be any one of many different events. For example, when receiver 10 resides on a mobile phone, an incoming call could be an event that reflects a power request. When receiver 10 resides on a laptop, the
    8/19 changing the condition of the laptop (for example, changing from standby to wake-up mode) could be an event that reflects a power request. When receiver 10 resides in a lamp, turning on the lamp could be an event that reflects an energy demand. In summary, any event that reflects that the receiver needs power could be used as an event to trigger signal generator 102 to generate a signal and provide the generated signal to the signal transmitting coil 103.
    signal generated by signal generator 102 could be, for example, a voltage pulse, a series of voltage pulses, voltage steps or any other types of alternating voltage; the signal supplied to the signal transmission coil 103 generates a magnetic field in the signal transmitting coil 103.
    In order to generate a signal, the generation step 201 comprises a step 211 for providing electrical energy from a power source 104. The signal generated by the receiver 10 to activate the transmitter 11 does not have to be strong and does not have to provide the signal For a long time. Therefore, the electrical energy needed to generate the signal is very low.
    The power supply 104 could be, for example, a small battery dedicated to supplying power to the signal generator 102.
    Alternatively, the power supply 104 could also be a battery of the charge of the mobile device in which the receiver 10 resides. This charging battery is used to store the energy received by the transmitter receiver 11, and will normally have remaining electrical energy that is sufficient to generate the signal. When the charge battery is connected to the signal generator, it must be disconnected from the energy receiving unit 101 of the receiver 10.
    9/19
    Alternatively, the power supply 104 could be an energy converter for converting mechanical energy into electrical energy. Such an energy converter includes, for example, a piezoelectric element or a magnetic element.
    piezoelectric element uses the piezoelectric effect to generate electrical energy from mechanical energy. The piezoelectric effect (piezoelectricity) is the ability of some materials (namely crystals, certain ceramics and biological matter, such as bone, DNA and various proteins) to generate an electric field or electrical potential in response to applied mechanical stress. The effect is closely related to the change in polarization density in the volume of the material. If the material is not short-circuited, the applied stress induces a tension in the entire material.
    For example, if the receiver 10 resides in a lamp, a piezoelectric element is mechanically connected to the lamp switch or the switch comprises a piezoelectric element, so that when the switch is pressed by the user (meaning that the user wants to turn on the lamp ) the piezoelectric element is also pressed. As a result, electricity is generated. In this example, pressing the switch by the user is an event that reflects that the receiver needs energy and then the electrical energy is converted from mechanical energy and the electrical energy is transformed into a signal, that is, the receiver generates a signal after an event has occurred.
    A magnetic element typically comprises a coil and a magnet that move in relation to each other. For example, a magnet moves towards a coil. Changing the magnetic field induces a current in the coil. In the example above, if the lamp switch comprises an element
    10/19 magnetic, ie a magnet and a coil and the magnet is directly or indirectly connected to a button or switch operation handle, then when the user presses the button, the magnet will move in relation to the coil, thus generating electricity.
    In these cases, the lamp switch or a similar component for receiving and converting mechanical energy is also a component of the power supply 104.
    The electrical energy can be output directly by the signal generator 102 as the signal to activate the transmitter, if it has the necessary characteristics of the signal. The characteristics of a signal could be, for example, the amplitude of the energy, the amplitude of the current or voltage, the frequency of the voltage pulse, etc.
    Alternatively, signal generator 102 may comprise a unit 105, that is, a modulator for the modulation (step 221) of the electrical energy provided by the power supply 104. The energy generated could be modulated to generate a suitable signal. Modulator 105 could be, for example, a controller-controlled switch. Depending on the frequency of the on-off switch, the electrical power could be modulated in voltage pulses or other types of signals. The signal generator 102 then outputs the signal to the signal transmitting coil 103.
    Transmitter 11 comprises a power transmission unit 116 for transmitting power to the receiver. It can also comprise a communication unit for communicating data with a receiver. When transmitter 11 is in standby mode, transmission unit 116 and communication unit are not powered. To wake up transmitter 11, the communication unit and / or the transmission unit 116 must be energized (switched on).
    11/19
    As mentioned above, transmitter 11 comprises a signal receiving coil 112 for receiving the signal sent by receiver 10. Upon receiving the signal sent by receiver 10, transmitter 11 will be changed from standby to activated mode.
    The signal generated by generator 102 generates a magnetic field in the signal transmitting coil 103, and therefore the signal is induced in the signal receiving coil 112, which is coupled to the signal receiving coil 103. The induced signal could be, for example , a pulse of tension.
    Transmitter 11 comprises a detector 114 for detecting (step 203) the signal received by the signal receiving coil 112.
    In the example above, when the user turns on the lamp switch, signal generator 102 will send a signal to signal transmitting coil 103, which will generate a magnetic field. This magnetic field will induce a voltage in the signal receiving coil 112. Director 114 is able to detect this voltage.
    Transmitter 11 further comprises an alarm unit 115 for activating (step 204) the transmitter from standby to activated mode after the detection of said signal. In other words, the alarm unit 115 is triggered by detecting the signal on the signal receiving coil 112. The detector 114 and the alarm unit 115 could be implemented by a switch, for example, a FET (field effect transistors) connected to the signal receiving coil 112. The induced (received) signal on the signal receiving coil 112 switches the FET by which transmitter 11 is activated. Detector 114 could also be implemented by any detection circuit or sensor and alarm unit 115 could be implemented by circuit with software controlled switches or by a
    12/19 microprocessor.
    Figure 3 represents an example of an alarm unit 115 for activating the transmitter. As shown in Figure 3, the power supply 303 that often dominates power dissipation in standby is turned off by means of an AC switch Kl when the transmitter is in standby. During this state, only one controller 301 and detection circuits 302 (the detector) are powered by the energy stored in a capacitor Cl. This subsystem is separated from the rest of the electronic transmitters by means of a K2 switch to ensure that only these two components are fed through the storage capacitor. A small program running on the controller periodically checks whether its supply voltage, that is, the voltage on the capacitor, is still high enough. If not, both switches are closed for a short period to recharge the storage capacitor Cl. In this way the controller 301 and the detection circuits 302 are always powered, while the rest of the components are not powered in the standby mode.
    use of normally closed switches will alleviate the cold start problem, that is, when the transmitter is first connected to the network, it will be powered completely until the controller decides that the system should go into standby mode when no device on the transmitter surface requires power or no device is present on the transmitter surface.
    The transmitter is awakened when a S WK stimulus signal, for example, a signal, is applied to the transmitter and detected by the detection circuits 302, which send a signal to the controller 301 indicating that the transmitter must wake up. The controller 301 will close
    13/19 then, both switches, Kl and K2, to power all transmitting electronic components.
    Advantageously, the applied S WK stimulus signal should on a wireless energy transmitter be indicative of the placement of a receiver on the surface of the transmitter.
    The signal transmitting coil 103 and the signal receiving coil 112 could be dedicated coils for transmitting and receiving the signal.
    Preferably, since the transmitter is in standby mode and therefore the primary coil is not used for power transmission, the primary coil could be used as the signal receiving coil. Likewise, since receiver 10 does not receive power from transmitter 11 when transmitter 11 is in standby mode, the secondary coil of receiver 10 could be used as the signal transmitting coil 103. In other words, the function of the coil secondary receiver 10 and primary transmitter coil 11 are reversed. This realization has the advantage of saving components.
    If the primary coil is used as the signal receiving coil, and there is more than one transmitting coil, only one transmitting coil, which is in close proximity to the receiver, will receive the signal. Normally, only one coil will receive this voltage, such that the induced voltage not only awakens transmitter 11, but also provides information on the position of the receiver 10.
    If a transmitting system consists of more than one transmitting coil, it may happen that more than one transmitting coil is awakened. There are several possibilities:
    - All batteries that receive an alarm signal become active and contribute to the transmission of energy. One advantage is that this method is simple to implement. However, it may happen that coils are activated that do not
    14/19 are protected by the receiver and therefore generate unwanted magnetic emissions. In addition, energy efficiency can be very low, because some coils can contribute only weakly to the transmission of energy.
    -The battery that receives the largest signal becomes active.
    - The batteries start to negotiate with the receiver and only after the relevant cells become active.
    Figure 4 represents an example of the system, using the primary coil of the transmitter and the secondary coil of the receiver separately as the signal receiving coil and the signal transmitting coil.
    In Figure 4, part of a transmitter 41 is shown and part of the receiver 40 is shown. Figure 4 is limited to one transmitter coil only, but more transmitter coils may reside within a transmitter. The Lt transmitting coil is loosely coupled to an Lr receiving coil. The transmitter contains a capacitor Ct to form a resonance circuit with the transmitting coil.
    The receiver 40 contains a serial capacitor Cr to form a resonance circuit to improve energy transfer efficiency.
    Transmitter 41 still contains a current sensor A that serves several purposes. It is used to measure the operating point required in a control loop to adapt the power transfer to the needs of the receiver. It is also used to measure the current change in order to detect the modulation of a load by the receiver for data communication.
    Transmitter 41 also contains a half-bridge S1, S2 to conduct the resonant circuit Ct, Lt, and a controller (not shown) that provides control signals to the half-bridge to define the operating parameters for the energy transfer.
    15/19
    Receiver 40 contains a rectifier shown as 4 diodes and a capacitor C in Figure 4. The receiver 40 still contains a charge modulation entity represented as RI and S4 in Figure 4, for the purpose of communicating control data to the transmitter. Switch S3 can be connected to the target load of the mobile device which could be, for example, a B battery, a battery charging unit (not shown), or a driver for one or more power LEDs (not shown) .
    Switches S5 and S6 are added for the purpose of generating a signal (alarm signal) to activate transmitter 41.
    If switch S5 is briefly closed while switch S6 is also closed, an alarm pulse current is generated which energizes the resonance circuit of the receiver. Since Lr and Lt are coupled, the wake-up signal is transferred to the resonance circuit of the Lt, Ct transmitter. As a result, a current will flow through the transmitting coil Lt, which is detected by current sensor A. Preferably, switch S2 is kept closed for this purpose. Current detection will trigger the wake-up circuits, as shown in Figure 3. Alternatively, the induced voltage is used directly to trigger the wake-up circuits. In this case, switch S2 is preferably kept open. In Figure 4, the power to generate the signal is taken from battery B. It is also possible to use another power supply instead of battery B, such as a power converter, as mentioned above.
    The signal can be extended to a pulse frequency that corresponds to the resonance frequency, as determined by the resonance circuit of the transmitter (coupled). This will allow you to increase the signal level in the
    16/19 transmitter. In addition, the transmitter may contain a frequency filter that is designed to pass the frequency of the signal and block other frequencies. Figure 5 shows an embodiment with synchronous rectifier means. The lower half diodes are replaced by switches (S6 and S7). A controller circuit (not shown) controls the switching of these switches for the purpose of rectification. In this embodiment, only an extra switch is needed to generate the wake-up signal. Switch S6 needs to be closed while switch S5 is briefly closed to generate a signal.
    Figure 6 shows an embodiment with a complete synchronous rectifier. All diodes are replaced by switches (S5, S6, S7, S8). In addition to switch S6, switch S3 needs to be closed while switch S5 is briefly closed to generate a pulse. In this embodiment, no extra components are needed to generate the signal.
    Figure 7 shows another embodiment of the invention. The Lswicth switch is in this case an inductive switch, for example, a switch with a piezoelectric element. The Lswicth switch is mechanically coupled to an electrical switch S x . Generally, S x connects the receiver load, represented by R L , to the receiver circuit that consists of the receiving coil Lrx and the resonant capacitor Crx, such that the load can receive energy. The Lswicth switch is disconnected, so that it does not consume power. When the Lswicth switch is used, S x is also changed. Then, the receiving coil is connected to the Lswicth switch, but disconnected from the load. In this way, the voltage generated is passed to the coil of the Lrx receiver, but it will not affect the load R L.
    The voltage pulse will generate a magnetic pulse, which
    17/19 induces a voltage in the L Tx transmitter coil. In standby mode, switch S 2 is open and transistor Tsw has no base voltage and is open. The circuit has no power consumption. In addition, the two generator switches, represented by the field effect transistors (FET) T H and T L , are open. The induced voltage pulse passes through C Tx and the diode D x and charges the capacitor C lz such that the voltage rises above the limit voltage of the base diode of Tsw, causing the Tsw to become conductive. Even if the induced voltage pulse has ended, the C x capacitor continues to supply a voltage for some time. If Tsw drives, switch S 2 is closed and the transmitter circuit is supplied via the Vgrade grid voltage. Therefore, the controller provides an additional voltage across D 2 to keep Tsw conductive. Then, the controller starts switching the energy transistors T H and T L as an alternative to generate AC current in the transmitter circuit and transfer energy. In a more advanced realization, the controller does not start transmitting power immediately, but communicates with the receiver to decide whether the power should actually be turned on. The means of communication are not shown in the Figure. The power will be turned on only if the receiver can identify itself as a valid receiver and all additional necessary parameters are changed. If the receiver cannot validate itself, the transmitting cell goes into standby condition again. In the embodiment shown in Figure 7, the controller turns off the voltage at D 2 . Soon, C x is unloaded and Tsw opens. Then, the system is in standby mode.
    Fig. 8 represents an example implementation of a detector. If no alarm signal is present, the signal to the controller is equal to the DC voltage V. A weak alarm signal Swk is amplified by operational amplifier A. The amplified signal carries a
    18/19 capacitor C through a diode D. If the voltage in the capacitor reaches a limit, transistor T will pull the voltage down and activate the controller to turn on (activate) the transmitter.
    It should be noted that the invention can be implemented in hardware and / or software, using programmable components. It will be appreciated that in the above description, for clarity, embodiments of the invention are described with reference to different components, functional units and processors. However, it will be apparent that any suitable distribution of functionality between the different functional units or processors can be used without departing from the invention. For example, the illustrated functionality to be performed by separate units, processors or controllers can be performed by the same processor or controller. Hence, references to specific functional units are only to be seen as references to adequate means to provide the described functionality rather than indications of a rigorous logical or physical structure or organization.
    Although the present invention has been described in connection with some embodiments, it is not intended to be limited by the specific form set out in this document. In addition, although a characteristic may appear to be described in relation to particular accomplishments, a person skilled in the art will recognize that several. characteristics of the described embodiments can be combined according to the invention. In the claims, the term comprising does not exclude the presence of other elements or stages.
    Furthermore, although individually listed, a plurality of means, elements or steps of the method can be applied through, for example, a single unit or processor. Additionally, although individual characteristics can be included in different
    19/19 claims, these may possibly be advantageously combined, and the inclusion in different claims does not imply that a combination of features is not feasible and / or advantageous. In addition, the inclusion of a feature in one category of claims does not imply a limitation to this category, but rather indicates that the feature is equally applicable to other categories of claims as appropriate. Furthermore, the order of characteristics in the claims does not imply any specific order in which the characteristics are to be worked on and in particular the order of individual steps in a method claim does not imply that the steps must be carried out in that order. Instead, the steps can be performed in any appropriate order. In addition, references in the singular do not exclude a plurality. Thus, references to one (a), first (a), second) (a) etc. do not exclude a plurality. Reference signs in the claims that are provided merely as an example of clarification should not be construed as limiting the scope of the claims in any way.
    权利要求:
    Claims (13)
    [1]
    1. TRANSMITTER (11, 41, 51, 61, 71) TO TRANSMIT ELECTRICITY TO AN INDUCTIVELY RECEIVER, comprising:
    - a signal receiving coil (112) for receiving a signal from the receiver to activate said transmitter from the standby mode to the activated mode; and
    - a detector (114) for detecting said signal received by said signal receiving coil;
    - a unit (115) for activating the transmitter from the standby mode to the activated mode when detecting said signal, characterized in that the transmitter does not transmit any energy to the receiver when in standby mode.
    [2]
    2. TRANSMITTER, according to claim 1, characterized in that it comprises a primary coil for transmitting energy, wherein said primary coil is used as said signal receiving coil.
    [3]
    3. RECEIVER (10, 40, 50, 60, 70) TO RECEIVE ELECTRICITY FROM AN INDUCTIVELY TRANSMITTER, comprising:
    - a signal generator (102) for generating a signal, triggered by an event that reflects that the receiver is intended to receive energy from the transmitter, wherein said signal is intended to activate said transmitter from standby to mode activated, and
    - a signal transmitting coil (103) for transmitting said signal to said transmitter, the receiver characterized by not receiving power from the transmitter when in standby mode.
    [4]
    4. RECEIVER, according to claim 3, said signal generator characterized by comprising at least one of the following power sources (104) for
    Petition 870190038763, of 04/24/2019, p. 8/13
    2/4 provide electricity:
    - a battery;
    - an energy converter to convert mechanical energy into electrical energy.
    [5]
    RECEIVER, according to claim 4, said energy converter, characterized in that it comprises a piezoelectric element or a magnetic element.
    [6]
    6. RECEIVER, according to either of claims 4 or 5, said signal generator being characterized by further comprising a unit (105) for modulating the electrical energy for said signal.
    [7]
    7. RECEIVER, according to any one of claims 3 to 5, said receiver characterized by comprising a secondary coil for receiving energy from said transmitter, wherein said secondary coil is used as said signal transmitting coil.
    [8]
    8. SYSTEM FOR TRANSMITING ENERGY, characterized by transmitting energy from a transmitter, as defined in claim 1, to a receiver, as defined in claim 3.
    [9]
    9. METHOD FOR TRANSMITTING ENERGY INDUCTIVELY FROM A TRANSMITTER TO A RECEIVER, said transmitter comprises a signal receiving coil and said method comprising the steps of:
    - detecting (203), by said transmitter, a signal received by said signal receiving coil of the receiver;
    - activating (204) the transmitter from the standby mode to the activated mode when detecting said signal, the method characterized by the transmitter not transmitting any energy to the receiver when in standby mode.
    Petition 870190038763, of 04/24/2019, p. 9/13
    3/4
    [10]
    10. METHOD, according to claim 9, said transmitter comprising a primary coil for transmitting energy, wherein said primary coil is used as said signal receiving coil.
    [11]
    11. METHOD FOR TRANSMITTING ELECTRIC ENERGY INDUCTIVELY FROM A TRANSMITTER TO A RECEIVER, said receiver comprising a signal transmitting coil and a signal generator; and said method comprising the steps of:
    - generate (201) a signal by said signal generator, triggered by an event that reflects that the receiver is intended to receive energy from the transmitter, wherein said signal is intended to activate said transmitter from the standby mode to the mode activated;
    - transmitting (202) said signal to said transmitter by said signal transmitting coil, the method characterized by the transmitter not transmitting any energy to the receiver when in standby mode.
    [12]
    12. METHOD, according to claim 11, in which said step for generation is characterized by also comprising the steps of:
    - provide (211) electricity, - modular (221) the said electrical energy for the said sign. 13. METHOD, in according to any one of claims 11 or 12, the said characterized receiver per
    comprising a secondary coil for receiving electrical energy from said transmitter, wherein said secondary coil is used as said signal transmitting coil.
    [13]
    14. METHOD FOR TRANSMITTING ELECTRIC ENERGY INDUCTIVELY FROM A TRANSMITTER, characterized by transmitting electrical energy from a transmitter when carrying out the method as defined in claim 9, to a receiver, when
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    同族专利:
    公开号 | 公开日
    CN102484387A|2012-05-30|
    JP2013527735A|2013-06-27|
    US10439436B2|2019-10-08|
    JP5792168B2|2015-10-07|
    KR102033306B1|2019-10-17|
    WO2011007300A3|2011-06-16|
    RU2012104835A|2013-08-20|
    CN102484387B|2015-10-07|
    US20120112543A1|2012-05-10|
    EP2454799A2|2012-05-23|
    RU2548367C2|2015-04-20|
    KR20120052291A|2012-05-23|
    WO2011007300A2|2011-01-20|
    EP2454799B1|2016-09-07|
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    法律状态:
    2017-10-10| B25D| Requested change of name of applicant approved|Owner name: KONINKLIJKE PHILIPS N.V. (NL) |
    2017-10-24| B25G| Requested change of headquarter approved|Owner name: KONINKLIJKE PHILIPS N.V. (NL) |
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-02-26| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2019-08-27| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2019-10-29| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/07/2010, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/07/2010, OBSERVADAS AS CONDICOES LEGAIS |
    优先权:
    申请号 | 申请日 | 专利标题
    EP09165294|2009-07-13|
    PCT/IB2010/053140|WO2011007300A2|2009-07-13|2010-07-09|Inductive power transfer|
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