• 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:
    AUTOMATIC SUNLIGHT TRACKING DEVICE An automatic sunlight tracking device comprises a solar panel mounting bracket (1), a support bracket (2), a step tracking member and a left-and- right. The panel mounting bracket (1) is connected to the support bracket (2) via a three-dimensional subassembly (3). The step tracking member comprises a first transmission component and a first drive device (81) which is joined with the first transmission component. The left-and-right tracking member comprises a second transmission component and a second drive device (82), which is joined with the second transmission component. The three-dimensional subassembly (3) comprises two rotating support axes (31, 32) in cross connection. The sunlight tracking device has high operating accuracy and a reasonable structure, reduces operating energy consumption and is easy to control and convenient to install and maintain.
    公开号:BR112012021658B1
    申请号:R112012021658-9
    申请日:2011-01-06
    公开日:2021-03-09
    发明作者:Jianzhong Liu
    申请人:Jianzhong Liu；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION FIELD OF THE INVENTION
    [001] The present invention relates to a device for using sunlight and, in particular, an automatic sunlight tracking device, having the function of tracking sunlight with two axes. DESCRIPTION OF RELATED TECHNIQUE
    [002] Since fossil energy is being depleted and problems such as environmental pollution and greenhouse effect are generated during production and use of fossil energy and become increasingly serious, countries have given increasing importance to the development and use of new energy sources. Solar energy is new energy that is effective, clean, widely distributed and can be used to an almost limited extent, attracting people to gradually and significantly increase investment in the development of solar energy. However, today the utilization rate is generally low and the cost of generation is generally expensive in the application of solar energy, especially in a field of photovoltaic generation. This is particularly true in the following two ways. First, since the existing photovoltaic cell for photovoltaic generation technique mainly employs semiconductor material, such as monocrystalline silicon and polycrystalline silicon, the price of the photovoltaic cell is expensive. Second, the currently high-quality monocrystalline silicon panel has only a photovoltaic conversion efficiency of up to about 17% and only a maximum lifetime of twenty to thirty years, so that the cost of solar generation is increased and the difficulty in commercializing solar generation is increased. Therefore, how to improve the generation efficiency per existing photovoltaic panel unit becomes one of the main ways to lower the cost of solar generation, while people seek to lower the cost of the panel and develop and use new panel material of a higher efficiency. photovoltaic conversion.
    [003] The solar panel is usually fixedly mounted on an existing solar photovoltaic generation system, so that sunlight is guaranteed to radiate the panel at an optimum angle only once a day each year. Therefore, this efficiency of using sunlight is relatively low. If the solar panel is always kept at an optimal angle with sunlight or a sunlight condensation technique is employed, more electrical energy can be obtained from the solar panel in the same area. All of this requires a reliable mature sunlight tracking technique. According to the research, an amount of electrical energy generalized by the solar panel employing the technique of tracking sunlight can be increased by more than 30 - 50%, in comparison with the fixed solar panel, depending on the irradiation conditions of the sunlight in different regions. However, most existing sunlight tracking techniques result in a high cost, even if the cost exceeds 30% of the total investment of a generation device, due to reasons such as complex structure. In addition, the tracking itself requires electricity consumption. A generation system using the tracking technique occupies more land area than the one using the fixed solar panel, requires additional technical personnel to maintain the equipment and has more operational risk than the one using the fixed solar panel. In addition, in order to decrease the cost of tracking, devices manufactured by manufacturers today become increasingly bulky. This, in turn, results in a number of problems, such as increased wind resistance, increased installation and maintenance difficulties and improved road and foundation requirements. As a result, the attraction of the effect generated by the tracking technique is greatly diminished and the commercialization of the tracking technique of sunlight is prevented. SUMMARY OF THE INVENTION
    [004] An objective of the present invention is to provide an automatic sunlight tracking device, having the ability to track sunlight with two axes, while the device has the advantages of the device having a firm structure, low cost and energy consumption , reliable operation and convenient routine maintenance of the device itself.
    [005] In order to achieve the objective of the present invention, an automatic sunlight tracking device is provided, comprising a solar panel support, an assembly, a step angle tracking member and an angle tracking member oscillation, where:
    [006] the solar panel support is coupled with the assembly through a three-dimensional joint, the three-dimensional joint includes a pitch angle rotation support axis and an oscillation angle rotation support axis arranged in a transverse shape, the three-dimensional joint is hingedly coupled to the assembly through the pitch angle rotation support axis and the three-dimensional joint is hingedly coupled to the solar panel support via the swing angle rotation support axis;
    [007] a rigid support is hingedly connected to the solar panel support or fixedly connected to the three-dimensional joint swing angle support axis and the rigid support is only able to rotate synchronously with a pitch angle of the solar panel support ;
    [008] the step angle tracking member at least comprises a first transmission part that is capable of rotating the solar panel support by means of the three-dimensional joint pitch angle rotation support axis, and a first driving device mounting arrangement to adjust the position of the first transmission part; and
    [009] the oscillation angle tracking member at least comprises a second transmission part, which is capable of rotating the solar panel support around the rotation support axis of the three-dimensional joint oscillation angle and a second driving device fixed on the rigid support to drive the second transmission part to act.
    [0010] The second transmission part is a semicircular arc body provided with a transmission structure, both ends of the rigid semicircular arc body are fixedly connected to the solar panel support and the second driving device drives the rigid semicircular arc body to rotate.
    [0011] In addition, the rigid semicircular arc body has a tooth-shaped transmission structure, the second driving device comprises an electric motor and a helical speed reducer, and a gear meshing with the tooth-shaped transmission structure is mounted on an output shaft of the helical speed reducer.
    [0012] In addition, the rigid semicircular arc body has a chain-shaped transmission structure, the second driving device comprises an electric motor and a helical speed reducer, and a toothed wheel cooperating with the chain-shaped transmission structure is mounted on an output shaft of the helical speed reducer.
    [0013] The second transmission part is a cable-type body, including a first transmission cable and a second transmission cable, the second driving device comprises an electric motor and a helical speed reducer, and a pulley that is able to cooperate with the cable-type body it is mounted on an output shaft of the helical speed reducer. The pulley has a cylindrical shape with a small diameter in an intermediate part and a large diameter at both ends. First and second helical guide grooves, symmetrical around an intermediate cross section of the pulley, are arranged on a cylindrical surface of the pulley. The first and second transmission cables are arranged in the first and second helical guide slots, respectively. Each of the first and second transmission cables has one end attached to an internal side of the corresponding helical guide groove and the other end connected to the solar panel support. The first and second transmission cables are configured in a coiled and uncoiled relationship. When the pulley rotates, one of the two transmission cables is wound and the other is unwound, a quantity of the wound cable and a quantity of the unwound cable are different from each other in order to effectively absorb different linear quantities of the wound cable and the unwound cable .
    [0014] The first transmission part has one end connected to the solar panel support and the other end connected to the rigid support.
    [0015] In addition, the first transmission part is a cable-type body, including a third transmission cable and a fourth transmission cable, the first monitor device comprises an electric motor and a helical speed reducer, and a pulley cooperating with the cable-type body is mounted on an output shaft of the helical speed reducer. The pulley has a cylindrical shape with a small diameter in an intermediate part and a large diameter at both ends. The third and fourth symmetrical helical guide grooves, around an intermediate cross section of the pulley, are arranged on a cylindrical surface of the pulley. The third and fourth transmission cables are arranged in the third and fourth helical guide slots, respectively. Each of the third and fourth transmission cables has an end fixed to an internal side of the corresponding helical guide and the other ends of the third and fourth transmission cables are connected to the solar panel support and the rigid support, respectively. The third and fourth transmission cables are configured in a roll-and-roll relationship.
    [0016] In addition, the first transmission part is a rigid arc body, the rigid arc body has a tooth-shaped transmission structure, the first monitor device comprises an electric motor and helical speed reducer, and a gear cooperating with the tooth-shaped transmission structure, it is mounted on an output shaft of the helical speed reducer.
    [0017] In addition, the first transmission part is a rigid arc body, the rigid arc body has a chain-shaped transmission structure, the first monitor device comprises an electric motor and helical speed reducer, and a wheel gearing cooperating with the chain-shaped transmission structure is mounted on an output shaft of the helical speed reducer.
    [0018] In addition, the first transmission part is a rigid arc body, the rigid arc body has a slot-shaped or hole-shaped positioning structure, and the first driving device comprises a fixing hole fixed in the assembly, and a positioning pin, which is capable of being inserted into the fixing hole and the rigid arc body.
    [0019] The first transmission part is a linearly electric push rod, or a linearly hydraulic push rod, the linearly electric push rod or the linearly hydraulic push rod has one end pivotally connected to the assembly and the other end pivotally connected to the solar panel support or rigid support.
    [0020] The first transmission part is a rigid arc body and the rigid arc body has one end connected to the rigid support or hingedly connected to the solar panel support and the other end connected to the assembly. The rigid arc body has a slot-shaped or hole-shaped positioning structure and the first driving device comprises a fixing hole attached to the assembly, and a positioning pin that is capable of being inserted between the fixing hole and the body rigid arc.
    [0021] The present invention has the following advantageous effects. (1) The automatic sunlight tracking device according to the present invention has a simplified, reasonable and firm structure and good mechanical performance. The device can be configured by multiple flexible combinations. Therefore, the device can be easily produced on a mass production basis.
    [0022] (2) A driving energy required by the device is considerably reduced due to the reasonable and simplified structure of the invention. The consumption of the operating energy of the device itself is greatly reduced by means of a control program for controlling the operation and self-locking of the helical wheel and helical thread.
    [0023] (3) The device control program is simplified by cooperation of the step angle tracking member and the oscillation angle tracking member, so that accurate tracking can be achieved by an open circuit control system . The cost of the control system is reduced, while the probability of failure of the device is decreased, and regular installation and maintenance of the device is facilitated.
    [0024] (4) The device is widely applicable. Tracking sunlight with large or small panels can yield considerable economic benefit.
    [0025] (5) The device solves the problem that the efficiency of the solar energy device varies as a point, where direct sunlight occurs, moves between the tropic of Capricorn and the tropic of Cancer. Therefore, the device can be used widely. BRIEF DESCRIPTION OF THE DRAWINGS
    [0026] Fig. 1 is a structural view of an automatic sunlight tracking device, according to the first embodiment of the invention;
    [0027] Fig. 2 is a schematic view of a component part of the first embodiment;
    [0028] Fig. 3 is a schematic view of various forms of a three-dimensional joint;
    [0029] Fig. 4 is a schematic view showing the installation of the solar panels;
    [0030] Fig. 5 is a structural view of an automatic sunlight tracking device according to a second embodiment of the invention;
    [0031] Fig. 6 is a structural view of an automatic sunlight tracking device according to a third embodiment of the invention;
    [0032] Fig. 7 is a structural view of a pulley;
    [0033] Fig. 8 is a structural view of an automatic sunlight tracking device according to a fourth embodiment of the invention;
    [0034] Fig. 9 is a structural view of an automatic sunlight tracking device, according to a fifth embodiment of the invention;
    [0035] Fig. 10 is a structural view of an automatic sunlight tracking device, according to a sixth embodiment of the invention; and
    [0036] Fig. 22 is a structural view of an automatic sunlight tracking device, according to a seventh embodiment of the invention. List of Reference Numbers I solar panel support II solar panel 2 assembly 3 three-dimensional joint 31 pitch angle rotation support axis 32 left-right swing angle rotation axis 41 third transmission cable 42 fourth transmission cable transmission 43 rigid arc body 44 positioning pin 45 positioning pin 46 linearly driving rod 51 rigid support 51 'rigid support 61 first gear 62 second gear 7 rigid semi-circular arc body 71 first transmission cable 72 second transmission cable 81 first driving device 81 second driving device 9 pulley 91 third helical guide groove 92 fourth helical guide groove DETAILED DESCRIPTION OF METHODS
    [0037] The automatic sunlight tracking device comprises a solar panel support 1, an assembly 2, a step angle tracking member and a left-right oscillation tracking member. Form of Realization 1
    [0038] As illustrated in Figs. 1 - 4, for the sake of clarity of description, firstly a Y direction is defined as a direction that is parallel to a plane on which the solar panel support 1 is located and which is directed along a location of movement of the sun during one day, a Z direction is defined as a direction that is parallel to the plane on which the solar panel support is located and that is directed along a place of movement of the sun for a year, and then an X direction is defined as a direction that is perpendicular to a YZ plane and towards the back of the solar panel support 1.
    [0039] As shown in Fig. 4, the solar panel support 1 can be a welded frame structure (or a frame structure composed of an aluminum section) to fix a solar panel 11. Depending on the different latitude of regions in which the solar panel is used, the solar panel 11 can be fixed parallel to or at an angle of inclination with the solar panel support 1.
    [0040] Mount 2 is a lambdoid steel structure formed by welding and a lower end of mount 2 is attached to a foundation by fixing screws and an upper end of mount 2 is attached to the solar panel support 1 through a joint three-dimensional 3.
    [0041] As shown in Fig. 3, the three-dimensional joint 3 includes an axis of rotation support of the pitch angle 31 and an axis of rotation support of the left-right oscillation angle 32 arranged in a transverse shape. The two axes can be arranged in several ways. Depending on whether the two axes are located on the same plane, the arrangement of the two axes can be divided into two basic shapes: a non-intersecting cross axis, in which the two axes are not located on the same plane, and an intersecting cross axis, where the two axes are located on the same plane.
    [0042] The intersecting cross axis has two specific shapes, one of which is that the two axes are integrated by welding as shown in Fig. 3 (A) and the other is that which supports the rotation angle of the step angle 31 passes through the left-right swing angle rotation support axis 32, and the step angle rotation support axis 31 is rotatable with respect to the left-right swing angle rotation support axis 32, a to form a joint.
    [0043] The non-intersecting cross axis has two shapes, one of which is that the two axes welded to a connecting part and the two axes are not located in the same plane as shown in Fig. 3 (B) and the other is that one axis is welded to the connection piece and the other axis passes through a through hole arranged in the connection piece to form a configuration, as shown in Fig. 3 (C).
    [0044] All of the above transverse axes can obtain the function of the solar panel support 1 rotate around the axis of rotation support of the oscillation angle 32 and the axis of rotation support of the pitch angle 31, respectively. The three-dimensional joint 3 can be arranged at a center of gravity of the solar panel support 1, to reasonably distribute gravity of the solar panel 11 and the solar panel support 1, and is a major point of application of force.
    [0045] The step angle tracking member comprises a first transmission part. Preferably, the first transmission part is a rigid circular arc body, provided with a transmission structure, which is indicated by the rigid arc body 43. One end of the rigid arc body 43 is articulated with the back of the solar panel support 1. Extremely preferable, the pivot point should be located on an elongation line extended below the axis of rotation of the three-dimensional joint oscillation angle 3. The other end of the rigid arc body 43 is fixed to a free end rigid support 51 by welding or by means of a pin. Therefore, the rigid arc body, the rigid support and the axis of rotation support of the oscillation angle are integrally connected and located in the same plane. Rigid support 51 is an H-shaped support and is welded to the rotation support axis of the three-dimensional joint oscillation angle 3, so that the rigid support is only able to rotate synchronously with a pitch angle and the panel support solar 1 and is not able to rotate with respect to the solar panel support 1. A first driving device 81 is fixedly fixed on the assembly 2. Preferably, the first driving device is a synchronous motor provided with a helical speed reducer. A gear is mounted on an output shaft of the helical speed reducer and indicated by the first gear 61. The first gear 61 engages with the teeth arranged on the rigid arc body 43. The first gear 61 controls the operation of the rigid arc body 43 The rigid arc body 43 drives the solar panel support 1 to rotate with the axis of rotation of the pitch angle 31 of the three-dimensional joint serving as a center in order to adjust the pitch angle.
    [0046] In order to ensure that the tracking is accurate and the adjustment of the control program is simple and reasonable, in one example, the teeth of the rigid arc body 43 are arranged in a reasonable proportion at 180 degrees. A sector plane formed by the rigid arc body 43 is perpendicular to the ground level in a direction of a longitude of the earth, and is perpendicular to a sector plane in which a rigid semicircular arc body 7 is located.
    [0047] The oscillation angle tracking member comprises the rigid semicircular arc body 7 provided with a transmission structure. The transmission structure comprises teeth proportionally arranged on the rigid semicircular arc body, according to the variation data of an angle of the sun during a day, to form a shape of a large gear ring. Both ends of the rigid semicircular arc body 7 are attached to the solar panel support 1 by bolts or are welded to the solar panel support 1. Most preferably, two fixation points of the two ends are located on an imaginary elongation line of the axis rotation support of the pitch angle of the three-dimensional joint to control the solar panel support to rotate around the axis of rotation support of the swing angle of the three-dimensional joint. Preferably, the second driving device 82 is a synchronous motor provided with a helical speed reducer. The second driving device 82 is fixedly fixed to the free end of the rigid support 51. One gear is fixed on an output shaft of the helical speed reducer and indicated by the second gear 62. The second gear engages with the rigid semicircular arc body 7 for controlling the operation of the rigid semicircular arc body 7 for the purpose of controlling the solar panel support 1 to adjust the oscillation angle.
    [0048] Take the Northern Hemisphere as an example. The sun initially rises or sets at a northern angle in most regions of the earth, after the vernal equinox and before the autumnal equinox every year. In one example, mounts 2 are installed in a lambdoid shape to be tilted at an angle of inclination depending on the different latitudes of regions where the device is used, or solar panels 11 on solar panel support 1 are divided into groups a be installed at an angle of inclination, so that an initial actuation position of the solar panel support 1 can be expanded to an angle from east fourth to northeast.
    [0049] In order to ensure that the tracking is accurate and the control program is simplified, the sectorial plane on which the rigid semicircular arc body 7 is located is perpendicular to the plane on which the solar panel support 1 is positioned.
    [0050] A program control box to control the operation of the first driving device 81 and the second driving device 82 can be attached to the assembly 2, or a central control system can be employed. An engine operation control program is established based on astronomical constants. The two driving devices cooperate with each other by establishing a reasonable program to simulate a local movement of the sun for a day, so that the device has the function of precisely tracking the sun with both axes.
    [0051] Specifically, before sunrise in the morning, the automatic sunlight tracking device is positioned in an initial state in which the device is facing directly with the sunrise orientation. From the initial state after the south dawn in the morning, the program controls the operation of the second driving device, so that the second transmission part drives the solar panel support to oscillate along the left-right direction and the panel support solar is stopped until an established time before sunset. At the same time, the program controls the operation of the first driving device, so that the first transmission part activates the solar panel support to operate according to an angle established by the program. Until the solar panel support reaches a point corresponding to the angle of the highest altitude of the sun at noon on a day, the first driving device rotates to an established angle in a reverse direction under the control of the program. As a result, complicated astronomical calculation is simplified in such a way that the two particularly transverse transmission parts, that is, the rigid arc body 43 and the rigid semicircular arc body 72, cooperate by means of numerous teeth corresponding to an oscillation angle prescribed, rotated in a prescribed time period and numerous teeth corresponding to a prescribed pitch angle, rotated in each prescribed time period, in order to obtain corresponding coordinate points. Correction is achieved in a direction of the pitch angle to ensure that the solar panel 11 is always kept perpendicular to the sunlight.
    [0052] The two driving devices cooperate with each other and the operation of the two driving devices is stopped until a prescribed time before sunset in the afternoon. Finally, the program controls the automatic sunlight tracking device, to return to the initial state for the next morning.
    [0053] When a wind force reaches an established level, the program controls the solar panel support to be positioned in a horizontal state as a wind avoidance state. When it snows, the program controls the solar panel support to be positioned in a vertical state as a snow avoidance state.
    [0054] The above operation of the automatic sunlight tracking device has the advantages of accurate tracking and the loss of refraction of sunlight is minimized, which is especially suitable for a concentrated solar power generation device, which requires high tracking accuracy and accurate tracking of sunlight. In addition, solar panels are divided into groups to be installed at an angle of inclination in order to effectively reduce wind resistance. The above operation of the automatic sunlight tracking device has only the disadvantages that all two driving devices must operate at an appropriate time and the energy consumption of the automatic sunlight tracking device is relatively large. Realization 2
    [0055] As shown in Fig. 5, the second embodiment is different from the first embodiment in that the rigid arc body 43 has a positioning structure shaped in a hole. The positioning structure is a formation of positioning holes 44 evenly distributed over the rigid arc body, so that the adjustment angle and the fixation can be achieved. Assembly 2 is provided with a fixing hole corresponding to the positioning holes 44 in a position adjacent to the rigid arc body 43. A positioning pin 45 (such as a cylindrical pin) can be inserted between the positioning hole 44 and the fixing hole for securing the rigid arc body 43 and the assembly 2 to each other. Therefore, a first simple manual driving device is formed in order to manually adjust the pitch angle.
    [0056] The oscillation angle tracking member of the second embodiment is substantially the same as that of the first embodiment.
    [0057] The embodiment can automatically track sunlight with a single axis, however the pitch angle needs to be manually adjusted at intervals. The second transmission part rotates through numerous teeth corresponding to a prescribed degree in a prescribed period of time. As a result, the solar panel support 1 is activated to track the variation in a position of the sun each day. The operation of the solar panel support is stopped until a prescribed time before sunset in the afternoon. Finally, the solar panel holder returns to the initial state for the next morning. The step angle is manually adjusted according to the variation of the altitude angle, occurring for one year, from the sun every pre-set day. The synchronous motor of the first embodiment can be omitted and the positioning pin 45 is used for fastening. Due to the gravity balance design of the device itself and the lever action of the rigid support 51, the operation of the device is simple and easy. The pitch angle can be adjusted by locking using the manual positioning device mounted on assembly 2. The automatic sunlight tracking device thus achieves the function of automatically tracking the sun with a single axis.
    [0058] The automatic sunlight tracking device has the advantages that the cost is reduced, the energy consumption for tracking is reduced, the driving program needs to control only the regular oscillation, the automatic sunlight tracking device is further simplified and the cost is greatly reduced. However, the sunlight tracking device has only the disadvantages that the pitch angle needs to be manually adjusted and the automatic sunlight tracking device has a tracking error of less than 5% on average for a year, so not being able to maximize the use of solar energy. Realization 3
    [0059] As shown in Figs. 6 and 7, the third embodiment is different from the first embodiment in that the first transmission part is a transmission cable of a cable-like body and includes a third transmission cable 41 and a fourth transmission cable 42 .
    [0060] The first driving device comprises an electric motor and a helical speed reducer. A pulley 9 cooperating with the transmission cables is mounted on an output shaft of the helical speed reducer. Pulley 9 has a cylindrical shape with a small diameter in an intermediate part and a large diameter at both ends. The diameters are gradually changed from the middle to both sides. The third and fourth helical guide grooves 91 and 92, symmetrical around an intermediate cross section of the pulley, are arranged on a cylindrical surface of the pulley. Helical directions of the two helical guide grooves are opposite each other. The depths of the two helical guide slots are designed according to requirements for winding the transmission cables. The third transmission cable 41 and the fourth transmission cable 42 are arranged in the third and fourth helical guide slots, respectively. The third transmission cable 41 is attached to one end on the right side of the third helical guide groove 91 and connected to the other end to the solar panel bracket 1. The fourth transmission cable 42 is attached to one end on the right side of the fourth groove helical guide 92 and connected to the other end of the rigid support 51. When the pulley rotates, the third transmission cable is wound and the fourth transmission cable is unwound, so that the two transmission cables are configured in a winding relationship and unfold and vice versa. It can be ensured that the pitch angle can be smoothly adjusted by adjusting reasonable parameters of the helical guide grooves. Realization 4
    [0061] As shown in Fig. 8, the fourth embodiment is different from the first embodiment in that the step angle tracking member is a linearly driving rod 46, having two ends respectively pivotally connected to the support rigid 51 and mounting 2. The thrust rod 46 linearly extends and retracts by operating a screw by means of an electric motor in order to control the solar panel support 1 to rotate by a corresponding angle around the support axis of rotation of the step angle 31.
    [0062] Similarly, a linearly hydraulic push rod and linearly pneumatic push rod can replace the linearly electric push rod equivalently.
    [0063] During actual use, the precise tracking method, in the first embodiment, in which the regular movements of the step angle tracking member and the oscillation angle tracking member cooperate with each other, can be employed, however, the device's tracking angle is limited due to the limitation of the thrust rod itself linearly 46; and a method in which the angle is adjusted by the thrust rod linearly 46 according to the law of variation of an altitude angle, occurring during one year, of all the pre-established days of sunshine, can be used.
    [0064] The pitch angle can be adjusted by articulating the two ends of the push rod linearly 46 to the solar panel support 1 and the assembly 2. Embodiment 5
    [0065] As shown in Fig. 9, the three-dimensional joint 3, the solar panel support 1, the assembly 2 and the oscillation angle tracking member of the fifth embodiment are substantially the same as those of the first embodiment , but the fifth embodiment is different from the first embodiment in that both the first transmission part and the second transmission part are rigid arc bodies with tooth-shaped structures, indicated by the rigid arc body 43 and the body with a rigid semicircular arc 7. The rigid arc body 43 is a quadrant, while the rigid semicircular arc body 7 is a semicircular arc. A rigid support 51 'is a quadrant having the same radius as the rigid arc body 43 and the rigid support 51' and the rigid arc body 43 are connected and combined to form a semicircular arc.
    The step angle tracking member comprises the solar panel support 1, the rigid arc body 43, the rigid support 51 ', the assembly 2, the three-dimensional joint 3 and the first driving device 81.
    [0067] The rigid arc body 43 and the arc shaped rigid support 51 'are integrally connected to form a 180 degree semicircular arc as a whole. Both ends of the semicircular arc are hingedly connected to the solar panel support 1 along the Z axis. Most preferably, the two hinged connection points are located on an elongation line of the support axis of rotation of the oscillation angle of the joint. three-dimensional 3. An external or internal periphery of the rigid arc body 43 is proportionally provided with teeth according to the data of the annual variation of an angle of altitude of the sun.
    [0068] The first driving device 81, fixed on the assembly 2, can effectively drive the rigid arc 43 to move by a gear on an output shaft of the first driving device. The rigid arc body 43 is controlled by the control program to rotate through numerous teeth corresponding to the annual variation of an angle of altitude of the sun. The solar panel support 1 is thus activated to rotate by a corresponding angle, thereby tracking the variation in the angle of the sun in one year.
    [0069] The gear transmission of the transmission structure over the rigid semicircular arc body of the fifth embodiment can be replaced by a chain transmission structure and a friction wheel transmission structure. The same transmission effect can be achieved with the current transmission structure and the friction wheel transmission structure. Realization 6
    [0070] As shown in Fig. 10, the sixth embodiment is different from the fifth embodiment in that the second driving device 82 is arranged within assembly 2, so that an operating range of the second driving device 82 is located within an angular space of an upper end of assembly 2.
    [0071] Assembly 2 is an A-shaped frame structure as a whole and the A-shaped frame structure has the angular space in an upper part. Assembly 2 is fixedly mounted on a base.
    [0072] When an operating environment of the automatic sunlight tracking device operates located in a lower latitude region (between the Tropic of Capricorn and the Tropic of Cancer), a point at which the sun shines directly will exceed the zenith. In this way, the pitch angle of the solar panel support 1 will exceed 180 degrees. In order to avoid the assembly 2 from inhibiting the movement of the second driving device 82 mounted on the rigid support 51, in order to affect an operating range of the solar panel support 1, the upper part of the assembly 2 needs to be designed as a structure with an open angular space and the effective angle of the open angular space must be greater than 46o52 '. As a result, solar panel support 1 can precisely track the 23.5 degree south and north variation of the sun's altitude angle occurring for a year near the equator. Realization 7
    [0073] As shown in Fig. 11, the three-dimensional joint, the solar panel support, the assembly and the rigid support of the seventh embodiment are substantially the same as those of the first embodiment and the angle-tracking member step of the seventh embodiment is substantially the same as that of the third embodiment.
    [0074] The seventh embodiment differs from the previous embodiments in that the second transmission part comprises a cable-like body including a first transmission cable 71 and a second transmission cable 72. The second driving device 82 comprises a motor electric and a helical speed reducer and a pulley that is able to cooperate with the transmission cables is fixed on an output shaft of the helical speed reducer. The pulley has the same structure as that of the third embodiment and also has a cylindrical shape with a small diameter in an intermediate part and a large diameter at both ends. The first and second helical guide grooves, symmetrical around an intermediate cross section of the pulley, are arranged on a cylindrical surface of the pulley. The first and second transmission cables 71 and 72 are arranged in the first and second helical guide slots, respectively. Each of the first and second transmission cables has one end attached to an internal side of the corresponding helical guide groove, and the other end connected to the solar panel support 1. The first and second transmission cables are configured in a coiled and unrolled relationship. An excess amount, generated by the relationship between a straight line and an arc, can be effectively absorbed. As a result, the solar panel support 1 is controlled to adjust the oscillation angle.
    [0075] The above embodiments can be used for mutual combinations of the embodiments in different environments and conditions.,
    [0076] In an application in a large-scale photovoltaic power station system, the control box can be replaced by centralized control, carried out by a master control center, to achieve various controls such as a measurement measurement tracking function light, a wind resistance function and a snow prevention function. The device itself is designed to have excellent sand prevention and rust prevention functions.
    [0077] The above embodiments of the present invention are only intended to describe the preferred embodiments of the present invention and will not be construed as limiting the present invention. All modifications and improvements to these embodiments by those skilled in the art without deviating from the design spirit of the invention will fall within the scope of the present invention, as defined in the claims of the present invention.
    权利要求:
    Claims (3)
    [0001]
    1. Automatic sunlight tracking device, comprising a solar panel support (1), an assembly (2), a pitch angle tracking member and a swing angle tracking member, where: solar panel (1) is coupled to the assembly (2) through a three-dimensional joint (3), the three-dimensional joint (3) includes a pitch angle rotation support shaft (31) and a rotation axis support shaft oscillation angle (32) arranged in a transverse shape, the three-dimensional joint (3) is articulated coupled to the assembly (2) through the rotation support axis of the pitch angle (31) and the three-dimensional joint (3) is articulated coupled to the solar panel support (1) through the support axis of rotation of the oscillation angle (32); a rigid support (51) is fixedly connected to the axis of rotation support of the oscillation angle (32) of the three-dimensional joint (3), and the rigid support (51) is only capable of rotating synchronously with a pitch angle of the support of solar panel (1); the oscillation angle tracking member at least comprises a transmission part which is capable of rotating the solar panel support (1) about the axis of rotation support of the oscillation angle (32) of the three-dimensional joint (3), and a driving device (82) attached to the rigid support (51) to drive the transmission part to act, characterized by the fact that the step angle tracking member comprises: a rigid arc body (43) which is capable of rotate the solar panel support (1) by means of the pitch angle rotation support axis (31) of the three-dimensional joint (3), where the rigid arc body (43) has one end fixedly connected to the rigid support ( 51) or to the axis of rotation support of the oscillation angle (32) and the rigid arc body (43) has a positioning structure in the form of a hole (44); a fixing hole arranged in the assembly (2); and a positioning pin (45) which is capable of being inserted into the fixing hole and the rigid arc body hole positioning structure (43), at which the pitch angle of the solar panel support (1) can be adjusted manually and the rigid arc body (43) is closed in the assembly (2) by inserting the positioning pin into the mounting fixing hole (2) and the positioning structure (45) in the form of arc body hole rigid (43).
    [0002]
    2. Automatic sunlight tracking device according to claim 1, characterized in that: the transmission part is a rigid semicircular arc body (7) provided with a transmission structure, both ends of the arc body rigid semicircular (7) are fixedly connected to the solar panel support (1), and the driving device (82) drives the rigid semicircular arc body (7) to rotate.
    [0003]
    3. Automatic sunlight tracking device according to claim 2, characterized by the fact that: the rigid semicircular arc body (7) has a tooth-shaped transmission structure, the driving device (82) comprises an electric motor and a helical speed reducer, and a gear engaging with the tooth-shaped transmission structure is mounted on an output shaft of the helical speed reducer.
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    同族专利:
    公开号 | 公开日
    JP2013519239A|2013-05-23|
    WO2011120324A1|2011-10-06|
    EP2546975A1|2013-01-16|
    CN102269996A|2011-12-07|
    AU2011235479B2|2014-08-21|
    CA2789510A1|2011-10-06|
    CN201766531U|2011-03-16|
    AU2011235479A1|2012-09-06|
    CN101877560A|2010-11-03|
    US20120318325A1|2012-12-20|
    BR112012021658A2|2020-06-23|
    EP2546975B1|2016-04-20|
    CN102269996B|2013-04-17|
    KR101421467B1|2014-07-24|
    JP5378610B2|2013-12-25|
    KR20120123101A|2012-11-07|
    EP2546975A4|2013-11-06|
    CN101877560B|2012-07-04|
    US20140224300A1|2014-08-14|
    PL2546975T3|2016-12-30|
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    法律状态:
    2020-07-07| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-09-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-22| B15K| Others concerning applications: alteration of classification|Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H02N 6/00 , G05D 3/00 Ipc: F24S 25/70 (2018.01), H02S 20/30 (2014.01), H01L 3 |
    2021-01-19| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-03-09| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 09/03/2021, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    CN201010138078|2010-04-02|
    CN201010138078.1|2010-04-02|
    CN2010102449943A|CN101877560B|2010-04-02|2010-07-27|Automatic sunlight tracking device|
    CN201010244994.3|2010-07-27|
    PCT/CN2011/000029|WO2011120324A1|2010-04-02|2011-01-06|Automatic sunlight-tracking device|
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