Photovoltaic panel transmission mechanism and photovoltaic assembly

Abstract

The utility model provides a photovoltaic panel transmission mechanism and photovoltaic assembly relates to photovoltaic technical field, it includes driver and a plurality of transmission units, each transmission unit includes casing, gear shaft, worm and worm wheel, gear shaft, worm and worm wheel are rotatably connected with casing, and worm is engaged with worm wheel, a plurality of transmission units are side by side arrangement, the casing of one transmission unit in the most outside of a plurality of transmission units is fixedly connected with the shell of driver, and the output shaft of driver is transmission connection with corresponding gear shaft, is used to drive gear shaft rotation, the gear shaft transmission connection of adjacent transmission units and can synchronous rotation, and the worm wheel transmission connection of adjacent transmission units and can synchronous rotation, can improve the stability in the process of photovoltaic panel angle adjustment, simple structure, low in cost.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and more specifically, to a photovoltaic panel transmission mechanism and a photovoltaic module. Background Technology Solar photovoltaic (PV) power generation systems can be categorized into centralized systems, such as the ground-level PV systems in Northwest China, and distributed systems, such as rooftop PV systems for industrial and commercial buildings and residential buildings. PV mounting systems are divided into fixed mounting systems and tracking mounting systems. The mainstream drive mechanisms for PV tracking reducers in tracking mounting systems are currently electric actuators, gear reducers, and rotary worm gear reducers. Because rotary reducers are superior to electric actuators and helical gear reducers in terms of torque, impact resistance, and ease of installation and maintenance, they are more widely used in PV tracking systems. Currently, commonly used tracking PV rotary reducers generally use a single motor for power input, followed by deceleration and direction conversion, outputting torque to drive the PV mounting system.

[0002] The inventors discovered in their research that existing photovoltaic panel drive mechanisms have at least the following drawbacks: Since the single-input-output drive is uncorrelated, damping needs to be added in the middle to cope with wind load in order to prevent large vibrations of the support. As a result, the stability and fluctuation of the support are relatively large, and the electronic control system needs to control each drive separately, which requires high system complexity and tolerance. Utility Model Content

[0003] The purpose of this invention includes, for example, providing a photovoltaic panel transmission mechanism and a photovoltaic module that can improve the stability during the photovoltaic panel angle adjustment process.

[0004] The embodiments of this utility model can be implemented as follows: In a first aspect, this utility model provides a photovoltaic panel transmission mechanism, comprising: A driver and multiple transmission units; each transmission unit includes a housing, a gear shaft, a worm, and a worm wheel, the gear shaft, the worm, and the worm wheel being rotatably connected to the housing, the worm meshing with the worm wheel; the multiple transmission units are arranged side by side, the housing of the driver is fixedly connected to the housing of the outermost transmission unit among the multiple transmission units, and the output shaft of the driver is drivenly connected to the corresponding gear shaft for driving the gear shaft to rotate; The gear shafts of adjacent transmission units are connected by a transmission and can rotate synchronously, and the worm gears of adjacent transmission units are connected by a transmission and can rotate synchronously.

[0005] In an optional embodiment, the gear shaft is provided with a first helical tooth portion; The worm is provided with a second helical tooth portion and a worm portion arranged in its axial direction, the first helical tooth portion meshing with the second helical tooth portion, and the worm portion meshing with the worm wheel.

[0006] In an optional embodiment, the gear shafts of adjacent transmission units are connected via a first transmission member.

[0007] In an optional embodiment, the first transmission component is configured as a first transmission tube, both ends of the first transmission tube are configured as first insertion ends, and the cross-sectional profile of the first insertion end is non-circular. The gear shafts of adjacent transmission units are respectively inserted into the two corresponding first insertion ends, and the gear shafts and the first transmission tube are fixed relative to each other in the circumferential direction of the first transmission tube.

[0008] In an optional embodiment, a first connecting tube is sleeved on the end of the gear shaft, and the first connecting tube and the gear shaft are fixed relative to each other in the circumferential direction of the gear shaft; the outer contour of the cross-section of the first connecting tube is non-circular, and the first connecting tube is inserted into the corresponding first insertion end.

[0009] In an optional embodiment, the first transmission component is configured as a square tube or a rectangular tube.

[0010] In an optional embodiment, the worm gears of adjacent transmission units are connected via a second transmission member.

[0011] In an optional embodiment, the second transmission component is configured as a second transmission tube, both ends of which are configured as second insertion ends, and the cross-sectional profile of the second insertion end is non-circular. The worm wheel shafts of adjacent transmission units are respectively inserted into the two corresponding second insertion ends, and the gear shaft and the second transmission tube are fixed relative to each other in the circumferential direction of the second transmission tube.

[0012] In an optional embodiment, the end of the worm gear shaft is integrally formed with a second connecting tube, the outer contour of the cross-section of the second connecting tube being non-circular; the second connecting tubes of adjacent worm gear shafts are respectively inserted into two second insertion ends of the same second transmission component.

[0013] Secondly, this utility model provides a photovoltaic module, the photovoltaic module comprising: The system includes multiple photovoltaic panel bodies, a support frame, and a photovoltaic panel transmission mechanism as described in any of the foregoing embodiments. Each of the multiple photovoltaic panel bodies is connected to one of the multiple housings, and all of the housings are connected to the support frame.

[0014] The beneficial effects of this utility model embodiment include, for example: In summary, the photovoltaic panel transmission mechanism provided in this embodiment, by installing a driver on the side, allows the torque of the driver to be directly transmitted to the gear shaft connected to the driver, causing the gear shaft to rotate. Because adjacent gear shafts are connected, when the driver inputs torque, all gear shafts can rotate synchronously, exhibiting consistent motion. After the gear shaft rotates, it can directly transmit torque to the worm gear connected to the gear shaft. The worm gear can then transmit the torque to the worm wheel, which in turn transmits the torque to the photovoltaic panel body. The adjacent worm wheels are connected, and the synchronous rotation of all worm wheels enables a row of photovoltaic panels to rotate synchronously, achieving angle adjustment. Since a row of photovoltaic panels is driven by multiple worm gears, the worm gear transmission structure has high stability, ensuring stable and reliable rotation of the photovoltaic panel body. Furthermore, it eliminates the need for damping components, reducing costs. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the photovoltaic module in this embodiment; Figure 2 This is a schematic diagram from a first perspective showing the interaction between the driver and the transmission unit in this embodiment; Figure 3 This is a schematic diagram from a second perspective showing the interaction between the driver and the transmission unit in this embodiment; Figure 4 This is an exploded view of the transmission unit in this embodiment.

[0017] icon: 100-Driver; 200-Transmission unit; 210-Housing; 220-Gear shaft; 221-First helical gear; 230-Worm; 231-Second helical gear; 232-Worm; 240-Worm wheel; 241-Worm wheel shaft; 250-First connecting pipe; 260-Second connecting pipe; 300-First transmission component; 400-Second transmission component; 001-Photovoltaic panel body; 002-Mounting bracket. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0021] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed during use, they are only for the convenience of describing this utility model 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 utility model.

[0022] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0024] Please refer to Figures 1-4 This embodiment provides a photovoltaic panel transmission mechanism, including: The device includes a driver 100 and multiple transmission units 200. Each transmission unit 200 includes a housing 210, a gear shaft 220, a worm 230, and a worm wheel 240. The gear shaft 220, worm 230, and worm wheel 240 are rotatably connected to the housing 210, and the worm 230 meshes with the worm wheel 240. The multiple transmission units 200 are arranged side by side. The housing of the driver 100 is fixedly connected to the housing 210 of the outermost transmission unit 200 among the multiple transmission units 200. The output shaft of the driver 100 is connected to the corresponding gear shaft 220 for driving the gear shaft 220 to rotate. The gear shafts 220 of adjacent transmission units 200 are connected and can rotate synchronously, and the worm gears 240 of adjacent transmission units 200 are connected and can rotate synchronously.

[0025] As described above, the working principle of the photovoltaic panel transmission mechanism provided in this embodiment is as follows: By installing a driver 100 on the side, the torque of the driver 100 can be directly transmitted to the gear shaft 220 connected to the driver 100, causing the gear shaft 220 to rotate. Since adjacent gear shafts 220 are connected by transmission, when the driver 100 inputs torque, all gear shafts 220 can rotate synchronously and move in the same direction. After the gear shaft 220 rotates, it can directly transmit the torque to the worm gear 230 connected to the gear shaft 220. The worm gear 230 can transmit the torque to the worm wheel 240, and then transmit the torque to the photovoltaic panel body 001 through the worm wheel 240. Adjacent worm wheels 240 are connected by transmission, and the rotation of all worm wheels 240 is synchronous, thereby enabling a row of photovoltaic panel bodies 001 to rotate synchronously and achieve angle adjustment. Since a row of photovoltaic panel bodies 001 is connected by multiple worm wheels 240 and worm gears 230, the transmission structure of the worm wheel 240 and worm gear 230 has high stability, the rotation of the photovoltaic panel body 001 is stable and reliable, and damping components can be eliminated, reducing costs.

[0026] The following embodiments illustrate the details of the photovoltaic panel transmission mechanism of this application by way of example.

[0027] It should be noted that the number of transmission units 200 is determined by the number of photovoltaic panel bodies 001 in a row, and the two numbers should be equal. For example, the number of transmission units 200 can be two, three, or four, etc. In this embodiment, the example is given with three transmission units 200 and three photovoltaic panel bodies 001.

[0028] Please refer to Figures 1-4 In this embodiment, optionally, the photovoltaic panel transmission mechanism includes a driver 100, three transmission units 200, two first transmission members 300, and three second transmission members 400. The three transmission units 200 are arranged in a straight line side by side, and are sequentially designated as the first unit, the second unit, and the third unit. The driver 100 is drivenly connected to the first unit located on the side. One of the two first transmission members 300 is drivenly connected to the first and second units, and the other is drivenly connected to both the second and third units. One of the three second transmission members 400 is drivenly connected to the first unit, another is drivenly connected to both the first and second units, and the third is drivenly connected to both the second and third units.

[0029] Optionally, the driver 100 can be configured as a geared motor, and the housing of the driver 100 can be fixed to the first unit on the side by means of structural components such as bolts.

[0030] Optionally, all transmission units 200 can be configured with the same structure, which facilitates manufacturing, ensures high interchangeability, and reduces manufacturing and maintenance costs. In this embodiment, the structure of one transmission unit 200 is described in detail.

[0031] Optionally, the transmission unit 200 includes a housing 210, a gear shaft 220, a worm 230, a worm wheel 240, two first connecting pipes 250, and two second connecting pipes 260. The gear shaft 220, worm 230, and worm wheel 240 are rotatably connected to the housing 210 via corresponding bearings. The length direction of the gear shaft 220 is perpendicular to the length direction of the worm 230, and the length direction of the gear shaft 220 is parallel to the axis of the worm wheel 240. A first helical tooth portion 221 is provided on the gear shaft 220, and the angles of the multiple helical teeth of the first helical tooth portion 221 are designed as needed. The worm 230 is provided with a second helical tooth portion 231 and a worm portion 232 arranged axially. The helical tooth structure of the second helical tooth portion 231 matches the helical tooth structure of the first helical tooth portion 221. During assembly, the first helical tooth portion 221 meshes with the second helical tooth portion 231 to achieve power transmission. The worm portion 232 on the worm 230 meshes with the worm wheel 240. Both first connecting pipes 250 can be square or rectangular tubes, and are respectively sleeved on both ends of the gear shaft 220. The first connecting pipes 250 and the gear shaft 220 can be connected by a key or spline, so that the gear shaft 220 and the first connecting pipes 250 are relatively fixed in the circumferential direction of the gear shaft 220, thereby enabling torque transmission.

[0032] Meanwhile, the worm gear 240 has a worm gear shaft 241, and a second connecting pipe 260 is installed at each end of the worm gear shaft 241. The second connecting pipe 260 can be a square tube or a rectangular tube. It should be understood that the worm gear shaft 241 and the two second connecting pipes 260 can be set as an integral structure, which has high structural strength and is not easily deformed or damaged.

[0033] Optionally, the first transmission component 300 can be configured as a first transmission tube, with both ends of the first transmission tube configured as first insertion ends. The cross-sectional profile of the first insertion end is non-circular, and the cross-sectional profile of the first insertion end matches the outer cross-sectional profile of the first connecting tube 250. For example, the cross-section of the first insertion end can be square or rectangular. During assembly, adjacent gear shafts 220 are connected through the first transmission component 300. That is, the first connecting tubes 250 of adjacent gear shafts 220 are inserted into the two first insertion ends of the same first transmission component 300. Since the first connecting tube 250 and the first insertion end are non-circular structures, they will not rotate relative to each other after insertion. The gear shaft 220 can transmit torque to the first transmission component 300 through the first connecting tube 250, thereby driving all gear shafts 220 to rotate synchronously.

[0034] Optionally, the second transmission component 400 can be configured as a second transmission tube, with both ends of the second transmission tube configured as second insertion ends. The cross-sectional profile of the second insertion end is non-circular, and the cross-sectional profile of the second insertion end matches the outer cross-sectional profile of the second connecting tube 260. For example, the cross-section of the second insertion end can be square or rectangular. During assembly, adjacent worm gear shafts 241 are connected through the second transmission component 400. That is, the second connecting tubes 260 on adjacent worm gear shafts 241 are inserted into the two second insertion ends of the same second transmission component 400. Since the second connecting tube 260 and the second insertion end are non-circular structures, they will not rotate relative to each other after insertion. The worm gear shaft 241 can transmit torque to the second transmission component 400 through the second connecting tube 260, thereby driving all worm gears 240 to rotate synchronously.

[0035] The photovoltaic panel transmission mechanism provided in this embodiment transmits torque from the geared motor to the gear shaft 220 of the first unit. The gear shaft 220 of the first unit transmits torque to the gear shaft 220 of the second unit through the corresponding first transmission component 300. The gear shaft 220 of the second unit transmits torque to the gear shaft 220 of the third unit through the corresponding second transmission component 400. All gear shafts 220 rotate synchronously. At the same time, each gear shaft 220 transmits torque to the corresponding worm 230, which drives the worm wheel 240 to rotate. All worm wheels 240 can rotate synchronously, and all worm wheels 240 are connected to each other through the second transmission component 400, resulting in high stability.

[0036] This embodiment also provides a photovoltaic module, including multiple photovoltaic panel bodies 001, a support frame, and the photovoltaic panel transmission mechanism described in the above embodiment. The number of photovoltaic panel bodies 001 is designed as needed. For example, in this embodiment, there are three photovoltaic panels, and the three photovoltaic panel bodies 001 are respectively connected to the housings 210 of three transmission units 200. Specifically, the three photovoltaic panel bodies 001 are mounted on the second transmission member 400 connected to the housing 210 via mounting brackets 002. Each photovoltaic panel body 001 can be connected to the corresponding second transmission member 400 via two mounting brackets 002, improving the stability of the photovoltaic panel body 001. Furthermore, the housings 210 of all transmission units 200 are connected to the support frame, which can be fixed to the ground surface with expansion bolts to provide support.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A photovoltaic panel transmission mechanism, characterized in that, include: A driver (100) and multiple transmission units (200); each transmission unit (200) includes a housing (210), a gear shaft (220), a worm (230), and a worm wheel (240), the gear shaft (220), the worm (230), and the worm wheel (240) are rotatably connected to the housing (210), and the worm (230) meshes with the worm wheel (240); the multiple transmission units (200) are arranged side by side, the housing of the driver (100) is fixedly connected to the housing (210) of the outermost transmission unit (200) among the multiple transmission units (200), and the output shaft of the driver (100) is drivenly connected to the corresponding gear shaft (220) for driving the gear shaft (220) to rotate; The gear shafts (220) of adjacent transmission units (200) are connected by transmission and can rotate synchronously, and the worm gears (240) of adjacent transmission units (200) are connected by transmission and can rotate synchronously.

2. The photovoltaic panel transmission mechanism according to claim 1, characterized in that: The gear shaft (220) is provided with a first helical tooth portion (221); The worm (230) is provided with a second helical tooth portion (231) and a worm portion (232) arranged in its axial direction. The first helical tooth portion (221) meshes with the second helical tooth portion (231), and the worm portion (232) meshes with the worm wheel (240).

3. The photovoltaic panel transmission mechanism according to claim 1, characterized in that: The gear shafts (220) of adjacent transmission units (200) are connected via a first transmission member (300).

4. The photovoltaic panel transmission mechanism according to claim 3, characterized in that: The first transmission component (300) is configured as a first transmission tube, and both ends of the first transmission tube are configured as first insertion ends, and the cross-sectional profile of the first insertion end is non-circular; The gear shafts (220) of adjacent transmission units (200) are respectively inserted into the two corresponding first insertion ends, and the gear shafts (220) and the first transmission tube are fixed relative to each other in the circumferential direction of the first transmission tube.

5. The photovoltaic panel transmission mechanism according to claim 4, characterized in that: The end of the gear shaft (220) is fitted with a first connecting tube (250), and the first connecting tube (250) and the gear shaft (220) are fixed relative to each other in the circumferential direction of the gear shaft (220); the outer contour of the cross-section of the first connecting tube (250) is non-circular, and the first connecting tube (250) is inserted into the corresponding first insertion end.

6. The photovoltaic panel transmission mechanism according to any one of claims 3-5, characterized in that: The first transmission component (300) is configured as a square tube or a rectangular tube.

7. The photovoltaic panel transmission mechanism according to claim 1, characterized in that: The worm gears (240) of adjacent transmission units (200) are connected via a second transmission member (400).

8. The photovoltaic panel transmission mechanism according to claim 7, characterized in that: The second transmission component (400) is configured as a second transmission tube, and both ends of the second transmission tube are configured as second plug-in ends, the cross-sectional profile of the second plug-in end is non-circular; The worm wheel shaft (241) of the worm wheel (240) of the adjacent transmission unit (200) is respectively inserted into the two corresponding second insertion ends, and the gear shaft (220) and the second transmission tube are fixed relative to each other in the circumferential direction of the second transmission tube.

9. The photovoltaic panel transmission mechanism according to claim 8, characterized in that: The end of the worm gear shaft (241) is integrally formed with a second connecting tube (260), and the outer contour of the cross section of the second connecting tube (260) is non-circular; the second connecting tubes (260) of adjacent worm gear shafts (241) are respectively inserted into the two second insertion ends of the same second transmission member (400).

10. A photovoltaic module, characterized in that, The photovoltaic module includes: The photovoltaic panel body (001), the bracket and the photovoltaic panel transmission mechanism according to any one of claims 1-9, wherein the photovoltaic panel body (001) is connected to the housing (210) in a one-to-one correspondence, and all the housings (210) are connected to the bracket.

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