Photovoltaic tracking support and photovoltaic system

Abstract

The utility model relates to a photovoltaic tracking support and a photovoltaic system, the photovoltaic tracking support comprises at least one support unit, and the support unit comprises a plurality of adjustable supports arranged along a first direction; wherein a connecting mechanism is arranged between every two adjacent adjustable supports, and the two adjustable supports are rotationally connected with the connecting mechanisms correspondingly; each adjustable support comprises a main shaft assembly, a driven shaft assembly, a driving mechanism and a first locking mechanism, the first locking mechanism is connected with the main shaft assembly and the driven shaft assembly, and the driving mechanism is connected with the main shaft assembly. Independent self-locking of each adjustable support can be achieved through the first locking mechanism, the problem that the driven shaft assembly reversely transmits under strong wind to damage the driving mechanism can be avoided, and the problem of asynchronism caused by the fact that the first locking mechanism is used for the multiple adjustable supports is solved through the connecting mechanism; the photovoltaic tracking support provided by the embodiment effectively solves the problems that a single point of a traditional tracking support is easy to damage and multiple points are not synchronous.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to photovoltaic tracking brackets and photovoltaic systems. Background Technology

[0002] In the field of photovoltaic (PV) tracking brackets, the commonly used unit type is the single-axis system, which generally consists of a drive system (including a motor, reducer, actuator, etc.), a main shaft, columns, purlins, and various connecting parts. Currently, PV tracking systems on the market are typically divided into single-point drive systems and multi-point drive systems. In a single-point drive system, one drive rotates the main shaft, which is connected to the column via bearings and a base; that is, only one drive rotates the main shaft for the entire row of brackets. In a multi-point drive system, multiple drives rotate the main shaft, which is connected to the column via bearings and a base; that is, at least two drives simultaneously rotate the main shaft for the entire row of brackets.

[0003] However, the commonly used photovoltaic tracking systems mentioned above have the following problems: In single-point drive systems, only one drive system is self-locked by its self-locking structure, while the rest are free-moving points. In strong winds, the system is prone to torsion and vibration, which may even cause the system to be damaged. At the same time, the support design length of single-point drive systems is limited. Multi-point drive systems are greatly affected by system synchronization. Once multiple drives are out of sync, the entire row of modules will stop, and the modules may even be damaged. Utility Model Content

[0004] Therefore, it is necessary to provide a photovoltaic tracking bracket and photovoltaic system to address the problems of easy damage to single-point drive and asynchronous multi-point drive in traditional photovoltaic brackets.

[0005] This application embodiment first provides a photovoltaic tracking bracket, the photovoltaic tracking bracket comprising:

[0006] At least one set of support units, the support unit comprising a plurality of adjustable supports arranged along a first direction;

[0007] The adjustable brackets are provided with a connecting mechanism between two adjacent adjustable brackets, and the two adjustable brackets are rotatably connected to the connecting mechanism respectively; each adjustable bracket includes a main shaft assembly, a driven shaft assembly, a driving mechanism and a first locking mechanism, the first locking mechanism connects the main shaft assembly and the driven shaft assembly, and the driving mechanism is connected to the main shaft assembly.

[0008] In one embodiment, the photovoltaic tracking bracket includes multiple sets of bracket units, which are arranged sequentially along a second direction intersecting the first direction;

[0009] In all the adjustable supports of the multiple sets of support units, at least one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports; the passive adjustable supports are configured to adjust in response to the adjustment of the active adjustable support.

[0010] In one embodiment, among all the adjustable supports in the plurality of support units, one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports; the active adjustable support includes an active controller, which is electrically connected to the drive mechanism;

[0011] Each of the said driven adjustable brackets includes a driven controller, which is communicatively connected to the active controller and is configured to adjust the driven adjustable bracket in response to a signal sent by the active controller.

[0012] In one embodiment, among all the adjustable supports in any group of the support units, one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports; the active adjustable support includes an active controller, which is electrically connected to the drive mechanism;

[0013] Each of the said driven adjustable brackets includes a driven controller, which is communicatively connected to the active controller and is configured to adjust the driven adjustable bracket in response to a signal sent by the active controller.

[0014] In one embodiment, in a plurality of sets of the support units, all the adjustable supports are arranged in rows along the first direction and in columns along the second direction; one adjustable support in each column is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports;

[0015] The active adjustable bracket includes an active controller electrically connected to the drive mechanism; each passive adjustable bracket includes a passive controller communicatively connected to the active controller, and the passive controller is configured to adjust the passive adjustable bracket in response to a signal sent by the active controller.

[0016] In one embodiment, in a plurality of sets of the support units, all the adjustable supports are arranged in rows along the first direction and in columns along the second direction; one adjustable support in each column is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports;

[0017] The photovoltaic tracking bracket also includes a transmission rod, one end of which is connected to the drive mechanism of the active adjustable bracket, and the other end of which is connected to the drive mechanism of the plurality of driven adjustable brackets. The transmission rod is configured to drive the plurality of driven adjustable brackets to rotate under the drive mechanism of the active adjustable bracket.

[0018] In one embodiment, the adjustable bracket located at both ends of the bracket unit along the first direction in the same bracket unit further includes a bearing mechanism configured to support the driven shaft assembly.

[0019] In one embodiment, the adjustable bracket includes a drive mechanism, and the spindle assembly includes a first spindle and a second spindle, the first spindle and the second spindle being respectively connected to the output end of the drive mechanism; the ends of the first spindle and the second spindle facing away from the drive mechanism are respectively connected to one end of the first locking mechanism, and the other end of the first locking mechanism is connected to the driven shaft assembly;

[0020] In the adjustable bracket, at least one end of the driven shaft assembly is rotatably connected to the connecting mechanism.

[0021] In one embodiment, the bearing mechanism includes a first column, a bearing support, a bearing ring seat, and a bearing. The bearing support is disposed at the end of the first column, the bearing ring seat is mounted on the bearing support, and the bearing is mounted on the bearing ring seat. The bearing is configured to pass through the driven shaft assembly.

[0022] And / or, the drive mechanism includes a second column, a drive mounting base, a motor, and a reduction structure. The drive mounting base is disposed at the end of the second column, the reduction structure is disposed on the drive mounting base, the input end of the reduction structure is connected to the output end of the motor, and the two output ends of the reduction structure are correspondingly connected to the first spindle and the second spindle.

[0023] In one embodiment, the photovoltaic tracking bracket further includes purlins disposed on the main shaft assembly and the driven shaft assembly, the purlins being configured to mount photovoltaic modules.

[0024] This application also provides a photovoltaic system, including a photovoltaic module and at least one photovoltaic tracking bracket as described in the above embodiments, wherein the photovoltaic module is mounted on the main shaft assembly and the driven shaft assembly.

[0025] The aforementioned photovoltaic tracking bracket and photovoltaic system, by decomposing the bracket unit arranged along the first direction into multiple adjustable brackets, and connecting these multiple adjustable brackets through a connecting mechanism, facilitates the independent operation of multiple adjustable brackets. Each adjustable bracket has a main shaft assembly, a driven shaft assembly, a drive mechanism, and a first locking mechanism. The first locking mechanism enables independent self-locking of each adjustable bracket, preventing damage to the drive mechanism from reverse transmission of the driven shaft assembly under strong winds, and effectively dispersing torque within the same adjustable bracket. The use of the first locking mechanism in conjunction with the connecting mechanism prevents the entire bracket unit from twisting. Furthermore, the connecting mechanism solves the asynchrony problem caused by the first locking mechanism being used between multiple adjustable brackets. The photovoltaic tracking bracket provided in this embodiment effectively solves the problems of single-point easy damage and multi-point asynchrony of traditional tracking brackets. In addition, by modularly designing the adjustable brackets, they can be arbitrarily spliced ​​into bracket units along the first direction, making the design more flexible and also enabling standardized design of photovoltaic tracking brackets, reducing the types of components. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a support unit for a photovoltaic tracking bracket provided according to some embodiments of this application.

[0027] Figure 2 This is a three-dimensional structural diagram of a support unit for a photovoltaic tracking bracket provided according to some embodiments of this application.

[0028] Figure 3 This is a three-dimensional structural diagram of multiple support units of a photovoltaic tracking bracket provided according to some embodiments of this application.

[0029] Figure 4 This is a top view of multiple support units (electrically controlled) of a photovoltaic tracking bracket provided according to some embodiments of this application.

[0030] Figure 5 This is a structural schematic diagram of multiple support units (drive rods) of a photovoltaic tracking bracket provided according to some embodiments of this application.

[0031] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A in the middle.

[0032] Figure 7 This is a schematic diagram of the structure of a drive mechanism (active controller) provided according to some embodiments of this application.

[0033] Figure 8 This is a schematic diagram of the structure of a drive mechanism (driven controller) provided according to some embodiments of this application.

[0034] Figure 9This is a schematic diagram of the connection mechanism provided according to some embodiments of this application.

[0035] Figure 10 This is a schematic diagram of the bearing mechanism provided according to some embodiments of this application.

[0036] Figure 11 This is a schematic diagram of the structure of a first locking mechanism provided according to some embodiments of this application.

[0037] Icon labels:

[0038] 30. Photovoltaic modules;

[0039] 100. Support unit; 110. Adjustable support; 111. Spindle assembly; 1111. First spindle; 1112. Second spindle; 112. Driven shaft assembly; 113. Drive mechanism; 1131. Second column; 1132. Drive mounting base; 1133. Motor; 1134. Reduction structure; 114. First locking mechanism; 1141. Third column; 1142. Mounting housing; 1143. Self-locking structure; 115. Bearing mechanism; 1151. First column; 1152. Bearing support; 1153. Bearing ring seat; 1154. Bearing; 120. Connecting mechanism; 121. Fourth column; 122. Bearing seat; 123. Shaft connection structure; 130. Active controller; 140. Driven controller; 150. Active adjustable support; 160. Driven adjustable support;

[0040] 200. Transmission rod;

[0041] 400. Purlins. Detailed Implementation

[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0043] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0048] As mentioned in the background section, commonly used photovoltaic tracking systems have the following problems: In single-point drive systems, only one drive system is self-locked by its self-locking structure, while the rest are free-moving points. In strong winds, the system is prone to torsion and vibration, which may even cause the system to be damaged. At the same time, the support design length of single-point drive systems is limited. Multi-point drive systems are greatly affected by system synchronization. Once multiple drives are out of sync, the entire row of modules will stop, and the modules may even be damaged.

[0049] More specifically, to address the issue that relying solely on the self-locking mechanism of a single-point drive system can easily lead to system torsion and vibration in strong winds, potentially causing system damage, a self-locking transmission device (hereinafter referred to as the locking mechanism) is typically installed between the main shafts of a photovoltaic tracking system. This self-locking transmission device acts as a mechanism that allows the active shaft to drive the passive shaft to rotate, while the passive shaft cannot drive the active shaft. When the support needs to rotate, the self-locking transmission device can be driven by the active shaft to rotate. When the support is not operating, especially in strong winds, the self-locking transmission device can act as a self-locking mechanism, preventing the torque of the passive shaft from being transmitted to the active shaft.

[0050] Based on the currently disclosed working principle of the self-locking transmission device, it can be known that in actual use of photovoltaic tracking brackets, there will be a certain angular difference between the drive shaft and the driven shaft. That is, the drive shaft needs to move a certain angle before it can act on the self-locking transmission device, and then the self-locking transmission device drives the driven shaft to rotate. If the self-locking transmission device is arranged in a multi-drive system with two or more drive systems, it will cause asynchrony in the multi-drive system. Currently, most photovoltaic tracking bracket products use rigid structures such as clamps and shrink tubes to connect adjacent drive shafts and driven shafts. Asynchrony can easily damage the drive shaft or driven shaft, easily causing the photovoltaic tracking bracket to malfunction.

[0051] Based on the aforementioned problems, this application provides a photovoltaic tracking bracket and a photovoltaic system. The first locking mechanism enables independent self-locking of each adjustable bracket, avoiding damage to the drive mechanism caused by reverse transmission of the driven shaft assembly under strong winds. It also effectively disperses the torque in the same adjustable bracket. The use of the first locking mechanism in conjunction with the connecting mechanism can prevent the entire bracket unit from twisting. Furthermore, the connecting mechanism solves the asynchrony problem caused by the first locking mechanism being used between multiple adjustable brackets. The photovoltaic tracking bracket provided in this embodiment effectively solves the problems of single-point damage and multi-point asynchrony of traditional tracking brackets.

[0052] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a support unit for a photovoltaic tracking bracket provided according to some embodiments of this application. Figure 2 This is a three-dimensional structural diagram of a support unit for a photovoltaic tracking bracket according to some embodiments of this application. One embodiment of this application provides a photovoltaic tracking bracket that may include at least one set of support units 100.

[0053] The support unit 100 includes a plurality of adjustable supports 110 arranged along a first direction; wherein, a connecting mechanism 120 is provided between two adjacent adjustable supports 110, and the two adjustable supports 110 are rotatably connected to the connecting mechanism 120 respectively; each adjustable support 110 includes a main shaft assembly 111, a driven shaft assembly 112, a drive mechanism 113 and a first locking mechanism 114, the first locking mechanism 114 connecting the main shaft assembly 111 and the driven shaft assembly 112, and the drive mechanism 113 connecting to the main shaft assembly 111.

[0054] It is understood that a set of support units 100 in this embodiment can be understood as a long row of supports, and multiple adjustable supports 110 are arranged sequentially along the extension direction of the long row of supports, i.e., the first direction. Multiple photovoltaic modules 30 can be installed on each adjustable support 110.

[0055] Since each adjustable bracket 110 is equipped with a drive mechanism 113, and a connecting mechanism 120 is provided between two adjacent adjustable brackets 110, and the two adjustable brackets 110 are rotatably connected to the connecting mechanism 120 respectively, the connection mechanism 120 can ensure the independent operation between two adjacent adjustable brackets 110, thereby ensuring that each drive mechanism 113 in a set of bracket units 100 is independent of each other and is not affected by the synchronization between drive mechanisms 113. In addition, this arrangement can also ensure that if one drive mechanism 113 is damaged, it will not affect the operation of other drive mechanisms 113.

[0056] Of course, in this embodiment, the various drive mechanisms 113 can operate synchronously, for example, by controlling the simultaneous start-up and operation of each drive mechanism 113 through signal transmission; the various drive mechanisms 113 can also operate asynchronously, in which case there is no need for high-precision synchronization control of the controller, thus reducing design costs.

[0057] In addition, in this embodiment, multiple adjustable supports 110 are connected sequentially along the first direction by the connecting mechanism 120. That is, multiple adjustable supports 110 are spliced ​​into a long row of supports. Compared with multiple short supports, the cleaning robot has better passability and the bridge design is simpler.

[0058] In this embodiment, an adjustable bracket 110 can be used as a module, and the bracket unit 100 can be wirelessly spliced ​​from multiple modules, which is beneficial to improving the design flexibility of long and long brackets.

[0059] In this embodiment, the connecting mechanism 120 can be a hinged structure, such as a combination of a pin and a spherical bearing 1154, to allow adjacent adjustable supports 110, specifically two adjacent driven shaft assemblies 112 to rotate relative to each other about their axial direction (tracking direction) to release torsional stress. Of course, the connecting mechanism 120 can also be a ball joint connection structure, a universal joint structure, or a spindle structure. The specific structure of the connecting mechanism 120 can be understood with reference to the following examples, and will not be repeated here.

[0060] The driven shaft assembly 112 may consist of only one driven shaft connected to the first locking mechanism 114. That is, the drive shaft assembly, the first locking mechanism 114, the driven shaft, and the connecting mechanism 120 are connected from the output end of the drive mechanism 113. Alternatively, the driven shaft assembly 112 may have multiple driven shafts and a second locking mechanism disposed between two adjacent driven shafts. For example, if the driven shaft includes two driven shafts and a second locking mechanism, then the drive shaft assembly, the first locking mechanism 114, driven shaft one, the second locking mechanism, driven shaft two, and the connecting mechanism 120 are connected from the output end of the drive mechanism 113. Furthermore, the drive mechanism 113 in this embodiment may have two output ends, which are arranged opposite each other in a first direction. Both output ends of the drive mechanism 113 may be connected to the drive shaft assembly, the first locking mechanism 114, the driven shaft assembly 112, and the connecting mechanism 120.

[0061] The drive mechanism 113 can be a combination of a motor 1133 and a reducer. The reducer can be a worm gear reducer to drive the spindle assembly 111 to rotate, and the worm gear itself has a self-locking capability. Of course, the specific structure of the drive mechanism 113 is not specifically limited here.

[0062] The first locking mechanism 114 may include a housing, a driving member, a driven member, and a locking member. The driving member is at least partially located inside the housing and is provided with a first engaging portion and at least two actuating portions spaced apart circumferentially along the driving member. The driven member is at least partially located inside the housing and is provided with a second engaging portion. The first engaging portion and the second engaging portion, when in an inserted state, have a first gap circumferentially. The locking assembly is located between adjacent actuating portions and includes at least two locking members and an elastic member connecting the two locking members. The locking member is located between the housing and the driven member, and the elastic member is used for... The drive locking member is in the locked position so that the locking member in the locked position blocks the driven member from rotating circumferentially relative to the locking member; the drive member is configured to be operably rotated to push the locking member away from the locked position by the actuating part until the first engaging part abuts against the second engaging part to drive the driven member to rotate; the radial distance between the driven member and the housing gradually decreases circumferentially and in the direction from the elastic member to the actuating part between adjacent actuating parts and elastic members; when the locking member is in the locked position, the radial distance between the driven member and the housing is equal to the diameter of the locking member.

[0063] In the above description, the driving member is used to connect with the main shaft assembly 111, and the driven member is used to connect with the driven shaft assembly 112. When the wind turbine is used with the driven shaft assembly 112, the driven shaft assembly 112 will drive the driven member to produce a small amount of movement. Since the locking member is in the locked position, the driven member cannot continue to rotate relative to the locking member, and thus the second locking part cannot abut against the first locking part. Therefore, the torque of the driven shaft assembly 112 cannot be transmitted to the main shaft assembly 111 connected with the driving member. The torque is blocked at the locking mechanism, thereby reducing the possibility of damage caused by the twisting of the main shaft assembly 111.

[0064] In the photovoltaic tracking bracket provided in this embodiment, the bracket unit 100 arranged along the first direction is decomposed into multiple adjustable brackets 110, and the multiple adjustable brackets 110 are connected by a connecting mechanism 120. This facilitates the independent operation of the multiple adjustable brackets 110. Each adjustable bracket 110 has a main shaft assembly 111, a driven shaft assembly 112, a drive mechanism 113, and a first locking mechanism 114. The first locking mechanism 114 can achieve independent self-locking of each adjustable bracket 110, which can avoid the problem of damage to the drive mechanism 113 caused by the reverse transmission of the driven shaft assembly 112 under strong winds. It can effectively disperse the torque in the same adjustable bracket 110. The use of the first locking mechanism 114 in conjunction with the connecting mechanism 120 can prevent the entire bracket unit 100 from twisting. Moreover, the connecting mechanism 120 solves the problem of asynchrony caused by the first locking mechanism 114 between multiple adjustable brackets 110. The photovoltaic tracking bracket provided in this embodiment effectively solves the problems of single-point easy damage and multi-point asynchrony of traditional tracking brackets. In addition, by modularizing the adjustable bracket 110, it can be arbitrarily spliced ​​into bracket unit 100 along the first direction, making the design more flexible. At the same time, it can also realize the standardized design of photovoltaic tracking brackets and reduce the types of parts.

[0065] Furthermore, the photovoltaic tracking bracket provided in this embodiment can directly detect the fault location when a certain adjustable bracket 110 is damaged, without having to shut down the entire bracket unit 100 for maintenance. Only the adjustable bracket 110 needs to be shut down for maintenance, while the other adjustable brackets 110 remain unaffected. This greatly improves maintenance efficiency and reduces the power generation loss caused by maintenance.

[0066] Below, we will combine the appendix Figure 1 - Appendix Figure 11 The specific structure of the photovoltaic tracking bracket provided in the embodiments of this application will be described.

[0067] like Figure 3 and Figure 5 As shown, Figure 3 This is a three-dimensional structural diagram of multiple support units of a photovoltaic tracking bracket provided according to some embodiments of this application. Figure 5 This is a schematic diagram of the structure of multiple support units (drive rods) of a photovoltaic tracking bracket according to some embodiments of this application. In some embodiments, the photovoltaic tracking bracket includes multiple support units 100, which are arranged sequentially along a second direction intersecting the first direction; among all the adjustable supports 110 of the multiple support units 100, at least one adjustable support 110 is configured as an active adjustable support 150, and the remaining adjustable supports 110 are configured as driven adjustable supports 160; the driven adjustable supports 160 are configured to adjust in response to the adjustment of the active adjustable support 150.

[0068] It is understandable that the second direction can be perpendicular to the first direction. If the first direction is defined as horizontal, then the second direction is vertical. Multiple sets of support units 100 are arranged in rows along the second direction. Since each adjustable support 110 includes a drive mechanism 113, in order to realize the electric control of the drive mechanism 113, each drive mechanism 113 can be associated with an electric controller. The electric controller receives the signal sent by the terminal, thereby making the motor 1133 in the drive mechanism 113 run, which in turn drives the worm gear reducer connected to the output end of the motor 1133 to rotate, thereby realizing the angle adjustment of the main shaft assembly 111 and the driven shaft assembly 112.

[0069] To reduce electrical control costs, multi-row linkage can be implemented. This linkage can be achieved by selecting at least one adjustable bracket 110 as the active adjustable bracket 150, with the rest acting as passive adjustable brackets 160. In other words, the active adjustable bracket 150 can be directly connected to the main cable or wirelessly connected to the terminal device. The active adjustable bracket 150 can directly receive the transmitted rotation angle command and then control its corresponding drive mechanism 113 to operate. Simultaneously, the active adjustable bracket 150 can also send the rotation angle command to the other passive adjustable brackets 160. After receiving the command from the active adjustable bracket 150, the passive adjustable brackets 160 control their corresponding drive mechanisms 113 to operate. This method enables synchronous operation of multiple rows of bracket units 100.

[0070] In addition to the aforementioned electronic control method, multiple rows of adjustable brackets 110 can also be connected via linkages or similar means. For example, an active adjustable bracket 150 can be connected to multiple driven adjustable brackets 160 arranged along the second direction via linkages. The active adjustable bracket 150 is connected to a terminal device via cable or wireless communication. Upon receiving a rotation angle command from the terminal device, the motor 1133 in its corresponding drive mechanism 113 starts and drives the worm gear reducer to rotate. The linkages connected to the drive mechanism 113 are also synchronously driven to rotate, thereby driving their respective worm gear reducers to rotate, thus achieving synchronous operation of multiple rows of adjustable brackets 110.

[0071] It should be noted that the multiple adjustable supports 110 in each set of support units 100 can correspond one-to-one with the multiple adjustable supports 110 in the adjacent set of support units 100 along the second direction. Of course, they can also be set in a staggered manner, and no specific restrictions are made here.

[0072] like Figure 3 and Figure 4As shown, in some embodiments, among all the adjustable supports 110 in the multiple sets of support units 100, one adjustable support 110 is configured as an active adjustable support 150, and the remaining adjustable supports 110 are configured as driven adjustable supports 160; the active adjustable support 150 includes an active controller 130, which is electrically connected to the drive mechanism 113; each driven adjustable support 160 includes a driven controller 140, which is communicatively connected to the active controller 130, and is configured to adjust the driven adjustable support 160 in response to a signal sent by the active controller 130.

[0073] It is understood that the active controller 130 in the active adjustable bracket 150 can be connected to the terminal device via cable or wireless communication to receive angle adjustment commands sent by the terminal device and control the operation of the corresponding drive mechanism 113. Taking a photovoltaic tracking bracket comprising three bracket units 100, each bracket unit 100 including two adjustable brackets 110, as an example, the photovoltaic tracking bracket includes a total of six adjustable brackets 110. Only one of the six adjustable brackets 110 serves as the active adjustable bracket 150. After receiving commands from the terminal device, the active controller 130 of this active adjustable bracket 150 sends commands to the slave controllers 140 of the other five slave adjustable brackets 160, thereby achieving synchronous operation of the six adjustable brackets 110. This configuration can reduce the cost of the electronic control system.

[0074] like Figure 1 As shown, in some embodiments, among all the adjustable supports 110 in any group of support units 100, one adjustable support 110 is configured as an active adjustable support 150, and the remaining adjustable supports 110 are configured as driven adjustable supports 160; the active adjustable support 150 includes an active controller 130, which is electrically connected to the drive mechanism 113; each driven adjustable support 160 includes a driven controller 140, which is communicatively connected to the active controller 130, and is configured to adjust the driven adjustable support 160 in response to a signal sent by the active controller 130.

[0075] Specifically, the above-mentioned electronic control method can be implemented using each set of support units 100. For example, a set of support units 100 includes three adjustable supports 110, of which one adjustable support 110 is an active adjustable support 150, and the other two are passive adjustable supports 160. After receiving the instruction sent by the terminal device, the active controller 130 of the active adjustable support 150 will send instructions to the passive controllers 140 of the other two passive adjustable supports 160, thereby realizing the synchronous operation of the three adjustable supports 110. This configuration can reduce the cost of the electronic control system.

[0076] It should be noted that the communication connection between the active controller 130 and the slave controller 140 can be a cable connection or a wireless communication method.

[0077] If the active controller 130 and the passive controller 140 are connected by a cable, this will reduce the amount of cable used. Figure 3 and Figure 4 As shown, in some embodiments, in multiple sets of support units 100, all adjustable supports 110 are arranged in rows along a first direction and in columns along a second direction; one adjustable support 110 in each column is configured as an active adjustable support 150, and the remaining adjustable supports 110 are configured as passive adjustable supports 160; the active adjustable support 150 includes an active controller 130, which is electrically connected to the drive mechanism 113; each passive adjustable support 160 includes a passive controller 140, which is communicatively connected to the active controller 130, and is configured to adjust the passive adjustable support 160 in response to a signal sent by the active controller 130.

[0078] It is understandable that arranging all adjustable brackets 110 in rows along the first direction and columns along the second direction can save cable usage and further reduce the cost of the electrical control system, since the distance between multiple adjustable brackets 110 in a column is relatively short. Specifically, all adjustable brackets 110 can be arranged into n columns, with each column containing m adjustable brackets 110. Among the m adjustable brackets 110, one is the active adjustable bracket 150, and the other m-1 are the passive adjustable brackets 160. After receiving the instruction from the terminal device, the active controller 130 of the active adjustable bracket 150 sends instructions to the passive controllers 140 of the other two passive adjustable brackets 160, thereby achieving synchronous operation of the m adjustable brackets 110. This arrangement can further reduce the cost of the electrical control system.

[0079] It should be noted that in this embodiment, the active controller 130 is an active TCU (Transmission Control Unit), and the passive controller 140 is a passive TCU. The working principles of the active TCU and the passive TCU can be understood by referring to relevant technologies, and will not be repeated here.

[0080] In this embodiment, the active controller 130 and the slave controller 140 are not required to be synchronized, which can reduce the controller development cost and avoid the risk of the adjustable bracket 110 being twisted when they are out of sync.

[0081] In addition to the above-mentioned electronic control methods, other methods include, for example... Figure 5 and Figure 6 As shown, Figure 6 for Figure 5 A magnified schematic diagram of the structure at point A. In some embodiments, in multiple sets of support units 100, all adjustable supports 110 are arranged in rows along a first direction and in columns along a second direction; one adjustable support 110 in each column is configured as an active adjustable support 150, and the remaining adjustable supports 110 are configured as driven adjustable supports 160; the photovoltaic tracking support also includes a transmission rod 200, one end of which is connected to the drive mechanism 113 of the active adjustable support 150, and the other end of which is connected to the drive mechanism 113 of the multiple driven adjustable supports 160. The transmission rod 200 is configured to drive the multiple driven adjustable supports 160 to rotate under the drive of the drive mechanism 113 of the active adjustable support 150.

[0082] It is understood that, similar to the arrangement of all adjustable supports 110 in the above embodiments, all adjustable supports 110 can be arranged in n columns, each column including m adjustable supports 110. Then, one of the m adjustable supports 110 is the active adjustable support 150, and the other m-1 are the driven adjustable supports 160. Specifically, one end of the transmission rod 200 is connected to the drive mechanism 113 of the active adjustable support 150, specifically to the worm of the worm gear reducer in the drive mechanism 113. The other end of the transmission rod 200 is connected to the worm of the worm gear reducer in the drive mechanism 113 of the remaining driven adjustable supports 160. Alternatively, the transmission rod 200 can act as the worm in the worm gear reducer.

[0083] In this embodiment, only the drive mechanism 113 of the active adjustable bracket 150 needs to be equipped with a motor 1133, while the other driven adjustable brackets 160 do not need to be equipped with motors 1133. In the specific operation process, the transmission rod 200 rotates under the drive of the drive mechanism 113 of the active adjustable bracket 150, and synchronously drives the worm gear reducers of the other driven adjustable brackets 160 to rotate, thereby realizing the synchronous operation of m adjustable brackets 110.

[0084] like Figure 1 As shown, in some embodiments, in the same support unit 100, the adjustable support 110 located at both ends of the support unit 100 along the first direction further includes a bearing mechanism 115, which is configured to support the driven shaft assembly 112.

[0085] It is understood that multiple adjustable supports 110 may be included in the same support unit 100. The adjustable support 110 located in the middle can be connected to the adjacent adjustable supports 110 through a connecting structure, but the ends of the adjustable supports 110 located at both ends need to be supported by a bearing mechanism 115. The bearing mechanism 115 will not interfere with the rotation of the driven shaft assembly 112.

[0086] like Figure 1 and Figure 2 As shown, in some embodiments, the adjustable bracket 110 includes a drive mechanism 113, and the spindle assembly 111 includes a first spindle 1111 and a second spindle 1112. The first spindle 1111 and the second spindle 1112 are respectively connected to the output end of the drive mechanism 113. One end of the first spindle 1111 and the second spindle 1112 away from the drive mechanism 113 is respectively connected to one end of the first locking mechanism 114, and the other end of the first locking mechanism 114 is connected to the driven shaft assembly 112. In the adjustable bracket 110, at least one end of the driven shaft assembly 112 is rotatably connected to the connecting mechanism 120.

[0087] It is understood that, to clearly describe the structure of an adjustable bracket 110, the spindle assembly 111 is decomposed into a first spindle 1111 and a second spindle 1112, with the first spindle 1111 and the second spindle 1112 located on opposite sides of the drive mechanism 113 and connected to the output end (worm gear) of the drive mechanism 113. Centered on the drive mechanism 113, one side includes the first spindle 1111, the first locking mechanism 114, the driven shaft assembly 112, and the connecting mechanism 120; the other side includes the second spindle 1112, the first locking mechanism 114, the driven shaft assembly 112, and the connecting mechanism 120; or, the other side includes the second spindle 1112, the first locking mechanism 114, the driven shaft assembly 112, and the bearing mechanism 115. Of course, the specific structure of the driven shaft assembly 112 can be either a single driven shaft or multiple driven shafts and a second locking mechanism connecting the driven shafts; no specific limitations are imposed here.

[0088] like Figure 10 As shown, Figure 10 This is a schematic diagram of the bearing mechanism provided according to some embodiments of this application. In some embodiments, the bearing mechanism 115 includes a first column 1151, a bearing support 1152, a bearing ring seat 1153, and a bearing 1154. The bearing support 1152 is disposed at the end of the first column 1151, the bearing ring seat 1153 is mounted on the bearing support 1152, and the bearing 1154 is mounted on the bearing ring seat 1153. The bearing 1154 is configured to pass through the driven shaft assembly 112.

[0089] Specifically, the bearing mechanism 115 is usually located at the ends of the adjustable brackets 110 at both ends of a set of support units 100, and is mainly used to support the driven shaft assembly 112. Specifically, the bearing 1154 passes through the driven shaft in the driven shaft assembly 112 to rotate with the rotation of the driven shaft.

[0090] like Figure 7 and Figure 8 As shown, Figure 7 This is a schematic diagram of the structure of a drive mechanism (active controller) provided according to some embodiments of this application. Figure 8 This is a schematic diagram of the structure of a drive mechanism (driven controller) provided according to some embodiments of this application. In one example, the drive mechanism 113 includes a second column 1131, a drive mounting base 1132, a motor 1133, and a reduction structure 1134. The drive mounting base 1132 is disposed at the end of the second column 1131, and the reduction structure 1134 is disposed on the drive mounting base 1132. The input end of the reduction structure 1134 is connected to the output end of the motor 1133, and the two output ends of the reduction structure 1134 are correspondingly connected to the first spindle 1111 and the second spindle 1112.

[0091] Specifically, the reduction structure 1134 can be a worm gear reducer, with one end of the worm connected to the output end of the motor 1133, and the two ends of the worm connected to the first main shaft 1111 and the second main shaft 1112 respectively.

[0092] like Figure 10 As shown, in some embodiments, the photovoltaic tracking bracket further includes a purlin 400 disposed on the main shaft assembly 111 and the driven shaft assembly 112, the purlin 400 being configured to mount the photovoltaic module 30.

[0093] Specifically, the purlin 400 can be fixed to the main shaft assembly 111 and the driven assembly by bolts, etc. It is mainly used to install and fix the photovoltaic module 30. The specific structure and installation method of the purlin 400 can be understood by referring to relevant technologies, and will not be elaborated here.

[0094] like Figure 11 As shown, Figure 11 This is a schematic diagram of the structure of a first locking mechanism provided according to some embodiments of this application. In some embodiments, the first locking mechanism 114 includes a third column 1141, a mounting housing 1142, and a self-locking structure 1143. The mounting housing 1142 is disposed on the top of the third column 1141, and the self-locking structure 1143 is disposed on the mounting housing 1142. The self-locking structure 1143 is used to connect the main shaft assembly 111 and the driven shaft assembly 112.

[0095] Specifically, when the first locking mechanism 114 is applied to the adjustable bracket 110, the driving member is connected to the main shaft assembly 111 of the adjustable bracket 110 via fasteners such as screws, and the driven member is connected to the driven shaft assembly 112 of the adjustable bracket 110. When the adjustable bracket 110 is operating normally, the rotational power of the drive mechanism 113 is transmitted to the driving member through the main shaft assembly 111. The driving member drives the locking member to move away from the locked position via the actuating part. At this time, when the rotational power of the drive mechanism 113 acts on the driving member and the driven member, the locking member no longer restricts the rotation of the driven member. As the driving member continues to rotate until the first gap on one side is eliminated, so that the first latching part abuts against the second latching part, both the locking member and the driven member can be driven by the driving member and rotate synchronously, thereby transmitting the rotational power to the driven shaft assembly 112 connected to the driven member, realizing the synchronous rotation of the driven shaft assembly 112 and the main shaft assembly 111, thereby ensuring the orientation consistency of multiple photovoltaic modules 30 and ensuring photovoltaic power generation efficiency. During power transmission, torque transmission is achieved through rigid contact between the driving and driven components via two snap-fit ​​joints. This results in more stable force transmission and the ability to transmit large torques, thus meeting practical application requirements.

[0096] When wind loads act on the driven shaft assembly 112, the driven shaft assembly 112 will undergo torsional deformation, causing the driven member to produce a slight movement. Even if the slight movement of the driven member causes the locking member to move slightly, because there is an elastic element between the adjacent locking members, the locking member will quickly return to the locked position under the action of the elastic element. Therefore, the driven member cannot continue to rotate relative to the locking member, and the second locking part cannot abut against the first locking part. As a result, the torque of the driven shaft assembly 112 cannot be transmitted to the main shaft assembly 111 connected to the driving member. The torque is blocked at the locking structure, thereby reducing the possibility of damage caused by the torsion of the main shaft assembly 111, improving the anti-torsion performance and service life of the adjustable bracket 110, and thus ensuring the photovoltaic power generation rate.

[0097] like Figure 9 As shown, Figure 9 This is a schematic diagram of the connection mechanism provided according to some embodiments of this application. In some embodiments, the connection mechanism 120 includes a fourth column 121, a bearing seat 122, and a shaft connection structure 123. The bearing seat 122 is disposed on the top of the fourth column 121, and the shaft connection structure 123 passes through the bearing seat 122. The two ends of the shaft connection structure 123 are respectively used to connect to the driven shaft assembly 112 in the adjacent adjustable bracket 110.

[0098] Specifically, the connecting mechanism 120 can be understood as a spindle structure, which is a bearing 1154 that can transmit bending moment but not torque. It can connect the driven shaft assemblies 112 of adjacent adjustable brackets 110, but does not transmit torque. The adjacent driven shaft assemblies 112 can rotate independently of each other. The specific structure of the connecting mechanism 120 can be understood by referring to relevant technologies, and will not be described in detail here.

[0099] Based on the same inventive concept, embodiments of this application also provide a photovoltaic system, such as... Figure 3 and Figure 5 As shown, the photovoltaic system may include a photovoltaic module 30 and at least one photovoltaic tracking bracket of the above embodiment. The photovoltaic module 30 is mounted on the main shaft assembly 111 and the driven shaft assembly 112.

[0100] It is understood that the photovoltaic modules 30 in the photovoltaic system can be mounted on the main shaft assembly 111 and the driven shaft assembly 112 via the aforementioned purlins 400, so as to rotate with the rotation of the main shaft assembly 111 and the driven shaft assembly 112, thereby adjusting the angle towards the sun. The photovoltaic system of this embodiment may include multiple photovoltaic tracking brackets as described above. The multiple photovoltaic tracking brackets may be arranged in an array or according to the actual terrain, without specific limitations.

[0101] The photovoltaic tracking bracket provided in this embodiment decomposes the bracket unit 100 arranged along the first direction into multiple adjustable brackets 110, and the multiple adjustable brackets 110 are connected by a connecting mechanism 120, which is conducive to the independent operation of multiple adjustable brackets 110. Each adjustable bracket 110 has a main shaft assembly 111, a driven shaft assembly 112, a drive mechanism 113, and a first locking mechanism 114. The first locking mechanism 114 can realize the independent self-locking of each adjustable bracket 110, which can avoid the problem of the driven shaft assembly 112 damaging the drive mechanism 113 under strong winds, and effectively disperse the torque in the same adjustable bracket 110. The use of the first locking mechanism 114 in conjunction with the connecting mechanism 120 can prevent the entire bracket unit 100 from twisting. Moreover, the connecting mechanism 120 solves the problem of asynchrony caused by the first locking mechanism 114 between multiple adjustable brackets 110. The photovoltaic tracking bracket provided in this embodiment effectively solves the problems of single-point easy damage and multi-point asynchrony of traditional tracking brackets.

[0102] In addition, by modularizing the adjustable bracket 110, it can be arbitrarily spliced ​​into bracket unit 100 along the first direction, making the design more flexible. At the same time, it can also realize the standardized design of photovoltaic tracking brackets and reduce the types of parts.

[0103] Furthermore, the photovoltaic tracking bracket provided in this embodiment can directly detect the fault location when a certain adjustable bracket 110 is damaged, without having to shut down the entire bracket unit 100 for maintenance. Only the adjustable bracket 110 needs to be shut down for maintenance, while the other adjustable brackets 110 remain unaffected. This greatly improves maintenance efficiency and reduces the power generation loss caused by maintenance.

[0104] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A photovoltaic tracking support, characterized in that, The photovoltaic tracking bracket includes: At least one set of support units, the support unit comprising a plurality of adjustable supports arranged along a first direction; The adjustable brackets are provided with a connecting mechanism between two adjacent adjustable brackets, and the two adjustable brackets are rotatably connected to the connecting mechanism respectively; each adjustable bracket includes a main shaft assembly, a driven shaft assembly, a driving mechanism and a first locking mechanism, the first locking mechanism connects the main shaft assembly and the driven shaft assembly, and the driving mechanism is connected to the main shaft assembly.

2. The photovoltaic tracking support of claim 1, wherein, The photovoltaic tracking bracket includes multiple sets of bracket units, which are arranged sequentially along a second direction intersecting the first direction. In all the adjustable supports of the multiple sets of support units, at least one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports. The driven adjustable support is configured to adjust in response to the adjustment of the active adjustable support.

3. The photovoltaic tracking support of claim 2, wherein, In all the adjustable supports of the multiple sets of support units, one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports. The active adjustable support includes an active controller, which is electrically connected to the drive mechanism. Each of the said driven adjustable brackets includes a driven controller, which is communicatively connected to the active controller and is configured to adjust the driven adjustable bracket in response to a signal sent by the active controller.

4. The photovoltaic tracking support of claim 3, wherein, In any set of adjustable supports, one adjustable support is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports.

5. The photovoltaic tracking support of claim 3, wherein, In the multiple sets of support units, all the adjustable supports are arranged in rows along the first direction and in columns along the second direction; one adjustable support in each column is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports.

6. The photovoltaic tracking support of claim 2, wherein, In the multiple sets of support units, all the adjustable supports are arranged in rows along the first direction and in columns along the second direction; one adjustable support in each column is configured as an active adjustable support, and the remaining adjustable supports are configured as passive adjustable supports. The photovoltaic tracking bracket also includes a transmission rod, one end of which is connected to the drive mechanism of the active adjustable bracket, and the other end of which is connected to the drive mechanism of the plurality of driven adjustable brackets. The transmission rod is configured to drive the plurality of driven adjustable brackets to rotate under the drive mechanism of the active adjustable bracket.

7. The photovoltaic tracking support of any one of claims 1-6, wherein, In the same support unit, the adjustable support located at both ends of the support unit along the first direction further includes a bearing mechanism configured to support the driven shaft assembly.

8. The photovoltaic tracking bracket according to claim 7, characterized in that, The adjustable bracket includes a drive mechanism, and the spindle assembly includes a first spindle and a second spindle. The first spindle and the second spindle are respectively connected to the output end of the drive mechanism. The ends of the first spindle and the second spindle that are away from the drive mechanism are respectively connected to one end of the first locking mechanism, and the other end of the first locking mechanism is connected to the driven shaft assembly. In the adjustable bracket, at least one end of the driven shaft assembly is rotatably connected to the connecting mechanism.

9. The photovoltaic tracking bracket according to claim 8, characterized in that, The bearing mechanism includes a first column, a bearing support seat, a bearing ring seat, and a bearing. The bearing support seat is disposed at the end of the first column, the bearing ring seat is mounted on the bearing support seat, the bearing is mounted on the bearing ring seat, and the bearing is configured to pass through the driven shaft assembly. And / or, the drive mechanism includes a second column, a drive mounting base, a motor, and a reduction structure. The drive mounting base is disposed at the end of the second column, the reduction structure is disposed on the drive mounting base, the input end of the reduction structure is connected to the output end of the motor, and the two output ends of the reduction structure are correspondingly connected to the first spindle and the second spindle.

10. The photovoltaic tracking bracket according to any one of claims 1-6, characterized in that, The photovoltaic tracking bracket also includes purlins disposed on the main shaft assembly and the driven shaft assembly, the purlins being configured to mount photovoltaic modules.

11. A photovoltaic system, characterized in that, It includes a photovoltaic module and at least one photovoltaic tracking bracket as described in any one of claims 1-10, wherein the photovoltaic module is mounted on the main shaft assembly and the driven shaft assembly.

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