Automatic snow cleaning device

Abstract

The invention discloses an automatic snow cleaning device which is used for cleaning accumulated snow on a photovoltaic module, the automatic snow cleaning device comprises an adjusting part, the photovoltaic module is arranged on the adjusting part, the relative angle between the photovoltaic module and the adjusting part is adjustable, the photovoltaic module can move between a first position and a second position, and the adjusting part is arranged on the adjusting part. When the photovoltaic module is located at the first position, a first included angle is formed between the photovoltaic module and the horizontal plane, when the photovoltaic module is located at the second position, a second included angle is formed between the photovoltaic module and the horizontal plane, and the angle of the first included angle is smaller than that of the second included angle. According to the automatic snow removing device, accumulated snow is removed from the photovoltaic panel by changing the relative angle between the photovoltaic module and the ground and utilizing the gravity effect, so that inconvenience of manual cleaning is avoided, the labor cost is reduced, the photovoltaic power generation efficiency is improved, the overall structure is simple and reliable, and the production cost of the photovoltaic module is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaics, and in particular to an automatic snow clearing device. Background Art

[0002] The relevant technology points out that the photovoltaic load requirements in photovoltaic power stations are relatively high. According to IEC61215 (international standard for quality and performance testing of solar photovoltaic modules), the front load requirements of photovoltaic modules are ≥5400Pa, and the back load requirements are ≥2400Pa. The front load requirements are mainly to prevent failure caused by the load generated by heavy snow in winter, and the back load is to prevent excessive wind load from blowing away the modules.

[0003] In order to meet the current snow load requirement of 5400pa, the modules increase the frame cross-section and frame strength, glass thickness and tensile strength, and use enhanced steel structure strength at the bracket end. Although this solution reduces failures in snowstorms to a certain extent, it greatly increases costs. In addition, outdoor modules generally present a certain inclination angle. Due to their own weight, the load under the bracket is much higher than the load above, resulting in uneven loads on the modules and brackets, and local overload and failure. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention is to provide an automatic snow-clearing device, which can use gravity to remove snow from photovoltaic modules.

[0005] The automatic snow-clearing device according to the present invention is used for clearing snow accumulated on a photovoltaic component, and comprises: an adjusting member, on which the photovoltaic component is arranged, and the relative angle between the photovoltaic component and the adjusting member is adjustable, and the photovoltaic component is movable between a first position and a second position, and when the photovoltaic component is located at the first position, a first angle is formed between the photovoltaic component and a horizontal plane, and when the photovoltaic component is located at the second position, a second angle is formed between the photovoltaic component and the horizontal plane, and the angle of the first angle is smaller than the angle of the second angle.

[0006] The automatic snow-clearing device according to the present invention changes the relative angle between the photovoltaic module and the ground and utilizes gravity to remove the accumulated snow from the photovoltaic module, thereby avoiding the inconvenience of manual cleaning, reducing labor costs, and improving photovoltaic power generation efficiency. The overall structure is simple and reliable, and the production cost of the photovoltaic module is reduced.

[0007] In some embodiments, the automatic snow clearing device also includes: an elastic component, which is arranged between the adjustment member and the photovoltaic component, the adjustment member is formed with an adjustment part and a connecting part, the photovoltaic panel of the photovoltaic component is in abutment with at least part of the adjustment part, and the photovoltaic panel is spaced apart from the connecting part.

[0008] In some embodiments, the adjustment portion has an adjustment surface, and the adjustment surface is formed as an arc-shaped surface convex toward the direction where the photovoltaic component is located.

[0009] In some embodiments, the elastic component includes: a first elastic member and a second elastic member, the first elastic member and the second elastic member are spaced apart, and the position of the first elastic member is lower than the position of the second elastic member.

[0010] In some embodiments, the adjusting members include a plurality of adjusting members, and every two adjusting members form a group, and the two adjusting members in each group are arranged opposite to each other in the width direction of the photovoltaic panel.

[0011] In some embodiments, a plurality of groups of the adjustment members are arranged at intervals in the length direction of the photovoltaic panel.

[0012] In some embodiments, the automatic snow clearing device also includes: a connecting member, the frame of the photovoltaic component is formed with a first connecting hole, the connecting part is formed with a second connecting hole, the connecting member is inserted into the first connecting hole and the second connecting hole, and one of the first elastic member and the second elastic member is sleeved on the connecting member.

[0013] In some embodiments, the automatic snow clearing device further includes: a bracket, the adjusting member is disposed on the bracket, a third connecting hole is formed on the bracket, and the connecting member is inserted into the third connecting hole.

[0014] In some embodiments, the adjusting member is formed with a through hole, and the fastener passes through the through hole and is connected to the support of the photovoltaic component.

[0015] In some embodiments, the load of the first elastic member and the load of the second elastic member are both not less than 2400Pa.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a schematic diagram of an automatic snow clearing device according to an embodiment of the present invention.

[0018] Reference numerals:

[0019] 100. Automatic snow-clearing device; 1. Adjusting member; 11. Adjusting surface; 12. Second connecting hole; 2. First elastic member; 3. Second elastic member; 4. Connecting member; 5. Bracket; 51. Third connecting hole; 200. Photovoltaic module; 201. First connecting hole. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] Reference below Figure 1 An automatic snow clearing device 100 according to an embodiment of the present invention is described.

[0022] like Figure 1 As shown, the automatic snow clearing device 100 according to the embodiment of the present invention comprises: an adjusting member 1, a photovoltaic assembly 200 is arranged on the adjusting member 1, the relative angle between the photovoltaic assembly 200 and the adjusting member 1 is adjustable, and the photovoltaic assembly 200 is movable between a first position and a second position. Specifically, when the photovoltaic assembly 200 is located at the first position, the photovoltaic assembly 200 forms a first angle with the horizontal plane (such as Figure 1 As shown in the first angle a), when the photovoltaic component 200 is located at the second position, the photovoltaic component 200 forms a second angle with the horizontal plane, and the angle of the first angle is smaller than the angle of the second angle.

[0023] When the accumulated snow on the photovoltaic module 200 reaches the critical load value, the relative angle between the photovoltaic module 200 and the adjustment member 1 changes, and moves from the first position to the second position. The second angle between the photovoltaic module 200 and the horizontal plane in the second position is greater than the first angle between the photovoltaic module 200 and the horizontal plane in the first position, that is, the angle between the photovoltaic module 200 and the horizontal plane increases. The larger inclination angle helps the accumulated snow to slide down under the action of its own gravity, thereby achieving the purpose of snow clearing; when the accumulated snow slides down, the relative angle between the photovoltaic module 200 and the adjustment member 1 changes again, and moves from the second position to the first position, which is conducive to receiving sunlight for power generation.

[0024] According to the automatic snow removal device 100 of the embodiment of the present invention, the relative angle between the photovoltaic module 200 and the ground is changed to remove the accumulated snow from the photovoltaic panel by using gravity, thereby avoiding the inconvenience of manual cleaning, reducing labor costs, and improving photovoltaic power generation efficiency. The overall structure is simple and reliable, and the production cost of the photovoltaic module 200 is reduced.

[0025] In some embodiments of the present invention, the automatic snow removal device 100 further includes: an elastic component, the elastic component is arranged between the adjustment member 1 and the photovoltaic assembly 200, the adjustment member 1 is formed with an adjustment portion and a connection portion, the photovoltaic panel of the photovoltaic assembly 200 abuts against at least part of the adjustment portion, and the photovoltaic panel is spaced apart from the connection portion. Figure 1As shown, the angle adjustment of the photovoltaic panel is achieved by changing the relative angle between the adjustment member 1 and the photovoltaic panel. The elastic component can play a role of buffering and supporting as well as resetting.

[0026] In some embodiments of the present invention, Figure 1 As shown, the adjustment part has an adjustment surface 11, and the adjustment surface 11 is formed as an arc-shaped surface convex toward the direction of the photovoltaic assembly 200. Therefore, it is convenient for the photovoltaic panel to move along the adjustment surface 11, and the arc-shaped surface can evenly disperse the pressure of the photovoltaic assembly 200 during the movement, reduce local stress concentration, reduce wear, and improve the reliability of the automatic snow removal device 100.

[0027] In some embodiments of the present invention, the elastic component includes: a first elastic member 2 and a second elastic member 3, the first elastic member 2 and the second elastic member 3 are arranged at intervals, and the position of the first elastic member 2 is lower than the position of the second elastic member 3. Specifically, when the photovoltaic component 200 moves from the first position to the second position, the second angle between the photovoltaic component 200 and the horizontal plane in the second position is greater than the first angle between the photovoltaic component 200 and the horizontal plane in the first position, that is, the angle between the photovoltaic component 200 and the horizontal plane increases. At this time, the first elastic member 2 is compressed and has a force to push the photovoltaic component 200 back to the first position, and the second elastic member 3 is stretched and has a force to pull the photovoltaic component 200 back to the first position. When the snow slides off, the first elastic member 2 and the second elastic member 3 drive the photovoltaic component 200 to return from the second position to the first position. Therefore, the design is ingenious, snow can be cleared without manpower, which reduces labor costs and ensures the efficiency of photovoltaic power generation.

[0028] In some embodiments of the present invention, the adjusting member 1 includes a plurality of adjusting members 1, and each two adjusting members 1 form a group, and the two adjusting members 1 in each group are arranged relative to each other in the width direction of the photovoltaic panel. Thus, uniform and stable support for the photovoltaic panel is ensured, and the ability to resist wind and snow can be improved under severe weather conditions such as strong winds or heavy snow, and the photovoltaic module 200 can be protected from damage. It is also convenient for daily maintenance and troubleshooting, and one adjusting member 1 can be replaced or maintained separately without affecting others, thereby simplifying the maintenance process and reducing maintenance costs.

[0029] In some embodiments of the present invention, multiple groups of adjustment parts 1 are arranged at intervals in the length direction of the photovoltaic panel, ensuring that the photovoltaic panel is evenly supported throughout the entire length, avoiding distortion or damage of the photovoltaic panel due to uneven distribution of support points, and increasing the structural strength and bending resistance of the photovoltaic panel. Especially when subjected to external forces such as snow or wind, the load can be effectively dispersed and stress concentration of the photovoltaic panel can be reduced. Multi-point support can ensure that the photovoltaic panel is smoother when adjusting the angle, thereby improving snow removal efficiency.

[0030] In some embodiments of the present invention, the automatic snow-clearing device 100 further includes: a connector 4, a first connecting hole 201 is formed on the frame of the photovoltaic module 200, a second connecting hole 12 is formed on the connecting portion, the connector 4 is inserted into the first connecting hole 201 and the second connecting hole 12, and one of the first elastic member 2 and the second elastic member 3 is sleeved on the connector 4. Thus, the connector 4 ensures a stable connection between the photovoltaic module 200 and the adjustment member 1, prevents the photovoltaic module 200 and the adjustment member 1 from loosening or separation under strong wind, snow or other external forces, thereby ensuring overall stability and safety, and the elastic member is sleeved on the connector 4 to prevent displacement or irreversible deformation of the elastic member.

[0031] Preferably, the connecting member 4 is a bolt, but the connecting member 4 may also be in other forms and is not limited thereto.

[0032] In some embodiments of the present invention, the automatic snow removal device 100 also includes: a bracket 5, an adjustment member 1 is arranged on the bracket 5, a third connecting hole 51 is formed on the bracket 5, and a connecting member 4 is passed through the third connecting hole 51, that is, the connecting member 4 is passed through the first connecting hole 201, the second connecting hole 12 and the third connecting hole 51, which not only enhances the overall structural stability, but also simplifies the assembly and maintenance steps, thereby improving the overall performance of the photovoltaic system.

[0033] In some embodiments of the present invention, the adjusting member 1 is formed with a through hole, and the fastener passes through the through hole to be connected to the support of the photovoltaic component 200, thereby ensuring a stable connection between the photovoltaic component 200 and the adjusting member 1. The connection method is simple, easy to assemble and maintain, and has low production cost.

[0034] It should be clear that the loads of the first elastic member 2 and the second elastic member 3 are not less than 2400Pa.

[0035] The following will refer to Figure 1 An automatic snow clearing device 100 according to a specific embodiment of the present invention is described.

[0036] Reference Figure 1 The automatic snow clearing device 100 includes: an adjusting member 1, a first elastic member 2, a second elastic member 3 and a connecting member 4.

[0037] Specifically, Figure 1 As shown, the photovoltaic assembly 200 is arranged on the adjustment member 1, and the relative angle between the photovoltaic assembly 200 and the adjustment member 1 is adjustable. The photovoltaic assembly 200 is movable between a first position and a second position. Specifically, when the photovoltaic assembly 200 is located at the first position, the photovoltaic assembly 200 forms a first angle with the horizontal plane (such as Figure 1As shown in the first angle a), when the photovoltaic component 200 is located at the second position, the photovoltaic component 200 forms a second angle with the horizontal plane, and the angle of the first angle is smaller than the angle of the second angle.

[0038] The adjusting member 1 is formed with an adjusting portion and a connecting portion. The adjusting portion has an adjusting surface 11. The adjusting surface 11 is formed as an arc-shaped surface protruding toward the direction of the photovoltaic assembly 200. The photovoltaic panel of the photovoltaic assembly 200 abuts against at least part of the adjusting portion. The photovoltaic panel and the connecting portion are spaced apart. The connecting portion is formed with a second connecting hole 12. Every two adjusting members 1 form a group. The two adjusting members 1 of each group are arranged relative to each other in the width direction of the photovoltaic panel. Multiple groups of adjusting members 1 are spaced apart in the length direction of the photovoltaic panel. The first elastic member 2 is spaced apart from the second elastic member 3, and the position of the first elastic member 2 is lower than the position of the second elastic member 3. The first elastic member 2 is sleeved on a connecting member 4, the second elastic member 3 is sleeved on a connecting member 4, and the first elastic member 2 and the second elastic member 3 are sleeved on different connecting members 4.

[0039] When the accumulated snow on the photovoltaic module 200 reaches the critical load value, the relative angle between the photovoltaic module 200 and the adjustment member 1 changes, and moves from the first position to the second position. The second angle between the photovoltaic module 200 and the horizontal plane in the second position is greater than the first angle between the photovoltaic module 200 and the horizontal plane in the first position, that is, the angle between the photovoltaic module 200 and the horizontal plane increases. The larger inclination angle helps the accumulated snow to slide down under the action of its own gravity, thereby achieving the purpose of snow clearing. At this time, the first elastic member 2 is compressed and has a force to push the photovoltaic module 200 back to the first position, and the second elastic member 3 is stretched and has a force to pull the photovoltaic module 200 back to the first position; when the accumulated snow slides off, the relative angle between the photovoltaic module 200 and the adjustment member 1 changes again, and the first elastic member 2 and the second elastic member 3 drive the photovoltaic module 200 to return from the second position to the first position, which is conducive to receiving sunlight for power generation.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An automatic snow clearing device, characterized in that: Used for clearing snow on photovoltaic components, the automatic snow clearing device includes: an adjusting part, the photovoltaic component is arranged on the adjusting part, the relative angle between the photovoltaic component and the adjusting part is adjustable, the photovoltaic component is movable between a first position and a second position, when the photovoltaic component is located at the first position, the photovoltaic component and the horizontal plane form a first angle, when the photovoltaic component is located at the second position, the photovoltaic component and the horizontal plane form a second angle, and the angle of the first angle is smaller than the angle of the second angle.

2. The automatic snow clearing device according to claim 1, characterized in that: Also includes: An elastic component is arranged between the adjusting member and the photovoltaic component, the adjusting member is formed with an adjusting portion and a connecting portion, the photovoltaic panel of the photovoltaic component abuts against at least part of the adjusting portion, and the photovoltaic panel is spaced apart from the connecting portion.

3. The automatic snow clearing device according to claim 2, characterized in that: The adjusting portion has an adjusting surface, and the adjusting surface is formed as an arc-shaped surface protruding toward the direction where the photovoltaic component is located.

4. The automatic snow clearing device according to claim 2, characterized in that: The elastic component includes: a first elastic member and a second elastic member, the first elastic member and the second elastic member are spaced apart from each other, and the position of the first elastic member is lower than the position of the second elastic member.

5. The automatic snow clearing device according to claim 4, characterized in that: The adjusting members include a plurality of adjusting members, and every two adjusting members form a group, and the two adjusting members in each group are arranged opposite to each other in the width direction of the photovoltaic panel.

6. The automatic snow clearing device according to claim 5, characterized in that: A plurality of groups of adjusting members are arranged at intervals in the length direction of the photovoltaic panel.

7. The automatic snow clearing device according to claim 4, characterized in that: Also includes: A connecting member, the frame of the photovoltaic component is formed with a first connecting hole, the connecting part is formed with a second connecting hole, the connecting member is inserted into the first connecting hole and the second connecting hole, and one of the first elastic member and the second elastic member is sleeved on the connecting member.

8. The automatic snow clearing device according to claim 7, characterized in that: Also includes: The bracket is provided with the adjusting member, a third connecting hole is formed on the bracket, and the connecting member is passed through the third connecting hole.

9. The automatic snow clearing device according to any one of claims 1 to 6, characterized in that: The adjusting member is formed with a through hole, and the fastener passes through the through hole and is connected with the support of the photovoltaic component.

10. The automatic snow clearing device according to any one of claims 4 to 8, characterized in that: The loads of the first elastic member and the second elastic member are both not less than 2400Pa.

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