Rolling snow removing device of photovoltaic system

Abstract

The utility model discloses a rolling snow removing device of a photovoltaic system, which belongs to the field of photovoltaic technology, the photovoltaic system comprises a photovoltaic module array which is obliquely arranged along the longitudinal direction, and the rolling snow removing device comprises a rolling snow removing component, a transverse limiting component and a manual control component, the rolling snow removal part comprises a rolling shaft, and a roller and a snow removal part which are mounted on the rolling shaft, the roller rolls on the surface of the photovoltaic module array from top to bottom in the longitudinal direction during snow removal and drives the snow removal part to rotate through the rolling shaft, and the snow removal part passes through the surface of the photovoltaic module array and removes accumulated snow during snow removal; the transverse limiting parts are arranged on the two transverse sides of the rolling snow removing part and used for being matched with the two transverse sides of the photovoltaic module array in a limiting mode. The manual control component is connected with the rolling snow removing component and used for controlling the rolling snow removing component to conduct snow removing operation. Manual snow removal can be conveniently carried out, and the snow removal operation and maintenance cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to photovoltaic power generation technical field, specifically related to photovoltaic power station's snow removing device. BACKGROUND

[0002] Snow has a great impact on photovoltaic modules:

[0003] First, snow has a direct impact on the light of photovoltaic modules. The working principle of photovoltaic modules is to convert solar energy into electrical energy, so the intensity and quality of sunlight shining on the module surface are directly related to its power generation efficiency. When the surface of the photovoltaic module is covered with snow, the sunlight is blocked, and the amount of light shining on the module is greatly reduced, resulting in a decrease in the photoelectric conversion efficiency of the photovoltaic module, and the power generation capacity also decreases. According to research, snow cover can cause the power generation capacity of photovoltaic modules to decrease by 10% to 50%, or even completely stop power generation. This impact is particularly significant in areas with high snowfall and high snowfall frequency, posing a serious challenge to the operational efficiency of photovoltaic power stations.

[0004] Second, impurities and salts in snow can also cause corrosion and aging of the surface of photovoltaic modules. Snow carries a large amount of impurities and salts during formation and melting, which can cause corrosion when they come into contact with the surface of the photovoltaic module, accelerating the aging process of the module and shortening its service life.

[0005] Finally, to avoid the impact of snow on the power generation efficiency and service life of the module, maintenance personnel need to regularly clean and maintain the photovoltaic module to remove accumulated impurities and salts on the surface and keep the module surface clean and smooth. Traditional snow removal methods require a large amount of manpower and financial resources, which greatly increases the cost of later maintenance.

[0006] The commonly used snow removal method may consider the advantages and disadvantages of different methods, such as mechanical removal, heating melting, chemical reagents, etc. Safety issues also need to be considered, such as anti-skid measures during roof work, and avoiding damage to the surface of the module. In addition, it may be necessary to mention the optimization of automatic snow removal systems or design, such as the inclination angle. Users need to recommend appropriate snow removal solutions according to different scenarios, and also need to consider the balance between cost and efficiency, such as large power stations may use mechanical methods, while home users may be more suitable for manual tools. Preventive measures are also important, such as designing appropriate inclination angles during installation, or using hydrophobic coatings. Users also need to be reminded to avoid using sharp tools to scrape snow to avoid scratching the glass. It may also be necessary to mention the importance of regular maintenance, such as checking the system before the snow season. Are there intelligent solutions, such as remotely monitoring snow conditions and starting the snow removal program. In short, all methods should be covered comprehensively, while emphasizing the importance of safety and protection of the module.

[0007] Referring to the Chinese utility model patent application No. CN 210327491 U, a snow removing device for solar photovoltaic panel is disclosed, which comprises a first side plate, a second side plate, a first shell, a second shell, a cover plate, a motor, a long shaft, a rotating shaft, a first gear, a second gear, a side block, a roller, a first pulley, a second pulley, a first belt, a third pulley, a second belt, a brush roller, an L-shaped baffle, a V-shaped plate, a V-shaped rubber strip and a tensioning assembly groove. The snow is removed by rolling, but it needs to be automatically controlled. Of course, there are many schemes for automatically removing snow by using automatic snow removing robots in the prior art, but for household photovoltaic, the cost of configuring a snow removing robot is too high.

[0008] In view of the deficiencies of the prior art, the technical problem to be solved by the present utility model is to provide a rolling snow removing device for a photovoltaic system, which can conveniently remove snow manually and effectively reduce the snow removing operation and maintenance cost.

[0009] To solve the above technical problems, the present utility model adopts the following technical scheme: a rolling snow removing device for a photovoltaic system, the photovoltaic system comprising a photovoltaic support and a photovoltaic module array installed on the top of the photovoltaic support, the photovoltaic module array being arranged obliquely along the longitudinal direction, the rolling snow removing device comprising:

[0010] a rolling snow removing component, the rolling snow removing component comprising a rolling shaft, a roller installed on the rolling shaft and a snow removing piece, the roller rolling along the longitudinal direction from top to bottom on the surface of the photovoltaic module array when removing snow, and the snow removing piece rotating through the rolling shaft when removing snow, the snow removing piece passing through the surface of the photovoltaic module array and removing snow when removing snow;

[0011] a transverse limiting component, the transverse limiting component being arranged on the transverse two sides of the rolling snow removing component, used for limiting cooperation with the transverse two sides of the photovoltaic module array, so as to limit the transverse position of the rolling snow removing component when removing snow, and avoid longitudinal misalignment of the transverse two ends of the rolling snow removing component;

[0012] a manual control component, the manual control component being connected with the rolling snow removing component, used for controlling the rolling snow removing component to remove snow.

[0013] Preferably, the snow removing piece is a rolling brush arranged circumferentially around the rolling shaft, and the rolling brush is arranged between the adjacent two rollers.

[0014] Preferably, the bristles of the rolling brush are made of flexible material, and the bristles are in flexible contact with the surface of the photovoltaic module array when removing snow.

[0015] Preferably, the transverse limiting component is two limiting wheels corresponding to the two ends of the rolling shaft.

[0016] ​Preferably, the diameter of the limiting wheel is larger than that of the roller, and the inner sides of the two limiting wheels correspond to the lateral sides of the photovoltaic module array.

[0017] Preferably, the lateral sides of the photovoltaic module array are provided with limiting grooves extending in the longitudinal direction, and the limiting wheels are matched with the limiting grooves.

[0018] Preferably, the manual control component is a control rod connected with the two ends of the roller.

[0019] Preferably, the control rod is rotationally connected with the roller, or the control rod is connected with the roller through a flexible connecting member.

[0020] Preferably, the rolling snow removing device further comprises a longitudinal extension support connected with the upper part of the photovoltaic support in the longitudinal direction, and the longitudinal extension support is provided with a stopping panel in the extending direction of the upper side of the photovoltaic module array in the longitudinal direction, and the stopping panel is used for stopping the rolling snow removing component.

[0021] Preferably, the longitudinal extension support is further provided with a pulley, and the manual control component comprises a rope connected with the pulley.

[0022] The above technical scheme has the following beneficial effects:

[0023] 1. The rolling snow removing component comprises a roller and a roller and a snow removing member installed on the roller, and since the photovoltaic module array is arranged obliquely in the longitudinal direction, the rolling snow removing component utilizes the inclination of the photovoltaic array, the roller rolls on the surface of the photovoltaic module array from top to bottom in the longitudinal direction when removing snow, realizes autonomous rolling walking, and drives the snow removing member to rotate through the roller, so that the snow removing member passes through the surface of the photovoltaic module array and removes snow. Moreover, the roller can not only provide a place for the snow removing member (roller brush) to adhere to, but also can play a counterweight role to prevent the snow removing member (roller brush) from being empty.

[0024] The lateral limiting component is arranged on the lateral sides of the rolling snow removing component, is matched with the lateral sides of the photovoltaic module array, thereby limiting the lateral position of the rolling snow removing component when removing snow, and avoiding longitudinal dislocation of the lateral ends of the rolling snow removing component, avoiding the roller from being empty and the rolling snow removing component from leaving the snow removing range.

[0025] In addition, the manual control component controls the rolling snow removing component to run at a set speed, which can appropriately increase the external force to ensure the rolling of the roller, drive the snow removing member to rotate, thereby achieving the snow removing effect, and can also avoid the situation that the rolling snow removing component runs too fast and cannot complete the snow removing effect. The roller can also be prevented from being deviated, and the roller can also be appropriately pulled to prevent the roller from being empty.

[0026] Therefore, the photovoltaic system rolling snow removing device is simple to operate, easy to use, low in cost, effective in reducing operation and maintenance cost, and suitable for various scenes, so that the applicability is high.

[0027] 2. The snow removing member can be a rolling brush arranged circumferentially around the roller shaft, the rolling brush being arranged between the two adjacent rollers, the bristles of the rolling brush being made of flexible material and being in flexible contact with the surface of the photovoltaic module array during snow removing. During the rolling of the rollers along the longitudinal direction from top to bottom on the surface of the photovoltaic module array, the roller shaft is driven to rotate, and the rolling brush mounted on the roller shaft also rotates synchronously, so that the snow on the surface of the photovoltaic module array is removed by the rolling brush, and the bristles made of flexible material will not affect the surface of the photovoltaic module during snow removing.

[0028] 3. The transverse limiting component is two limiting wheels corresponding to the two ends of the roller shaft, and the diameter of the limiting wheel is greater than the diameter of the roller, so that the two limiting wheels can be limited in cooperation with the transverse two sides of the photovoltaic module array, and the limiting wheel can rotate, so as not to hinder the movement of the rolling snow removing component along the longitudinal direction from top to bottom on the surface of the photovoltaic module array.

[0029] 4. In some embodiments, the transverse two sides of the photovoltaic module array are provided with limiting grooves extending in the longitudinal direction, and the limiting wheels are matched with the limiting grooves. In this way, the limiting wheel can not only play a limiting role, but also play a role in driving the rolling snow removing component to roll and remove snow like the roller.

[0030] 5. The manual control component is a control rod connected with the two ends of the roller shaft, the control rod being rotatably connected with the roller shaft, or the control rod being connected with the roller shaft through a flexible connecting piece. The control rod is lowered to a height that can be controlled by an operator below, so that the manual control component is provided, manual snow removing can be conveniently performed, and the roller shaft can be driven to roll and the rolling brush can be driven to rotate downward by manual control and appropriate increase of external force.

[0031] 6. In some embodiments, the rolling snow removal device further includes a longitudinally extended support connected to the top longitudinally of the photovoltaic support. The longitudinally extended support has a stopping panel located in the longitudinally extending direction of the photovoltaic module array. The stopping panel is used to hold the rolling snow removal component. The rolling snow removal component can be placed on it during non-working hours without shading the photovoltaic modules or affecting normal power generation. Furthermore, a pulley can be installed on the longitudinally extended support, mounted on a pulley bracket. The manual control component includes a rope connected to the pulley. Here, the rope can replace the control rod. Based on the angle of the photovoltaic module array, the rolling snow removal component automatically moves downwards to remove snow. The rope can also cooperate with the control rod; that is, the control rod controls the rolling snow removal component during snow removal, and the rope can be used to pull the rolling snow removal component back to the stopping panel. In this way, snow removal operations can be repeated, and if snow removal is not complete in a single operation, it can be repeated multiple times.

[0032] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. [Attached Image Description]

[0033] The utility model will be further described below with reference to the accompanying drawings:

[0034] Figure 1 This is a plan view of the present invention;

[0035] Figure 2 This is a longitudinal schematic diagram of the present invention;

[0036] Figure 3 for Figure 2 Sectional view of AA;

[0037] Figure 4 for Figure 2 BB section view;

[0038] Figure 5 This is a schematic diagram of a longitudinally extended support frame;

[0039] Reference numerals: 1. Rolling snow removal device; 11. Roller; 12. Snow removal component; 13. Limiting wheel; 14. Control rod; 15. Photovoltaic module array; 2. Photovoltaic support; 3. Longitudinal extension support; 31. Stop panel; 32. Pulley support; 33. Pulley; 34.

Detailed Implementation Methods

[0040] The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, and not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0041] Those skilled in the art can understand that the features in the following embodiments and embodiments can be combined with each other without conflict.

[0042] The terms used in the utility model are only for the purpose of describing specific embodiments, and are not intended to limit the utility model. For example, the words indicating the orientation or position relationship such as "upper", "lower", "transverse", "longitudinal" and the like in the following are only based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model.

[0043] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0045] Embodiment one

[0046] Referring to Figures 1 to 4 The embodiment provides a rolling snow removal device of a photovoltaic system, the photovoltaic system comprises a photovoltaic support and a photovoltaic module array 2 installed at the top of the photovoltaic support, and the photovoltaic module array 2 is usually arranged in a longitudinal oblique direction and faces the sunlight direction.

[0047] Wherein, the rolling snow removal device 1 comprises:

[0048] The rolling snow removing component comprises a roller shaft 11 and a rolling wheel 12 and a snow removing piece 13 installed on the roller shaft, the rolling wheel 12 rolls from top to bottom along the longitudinal direction of the photovoltaic module array surface when the snow removing is performed, and the snow removing piece 13 passes through the photovoltaic module array surface and removes the snow when the snow removing is performed;

[0049] The lateral limiting component is arranged on the lateral sides of the rolling snow removing component and is used for limiting cooperation with the lateral sides of the photovoltaic module array, so that the lateral position of the rolling snow removing component is limited when the snow removing is performed, and the longitudinal dislocation of the lateral ends of the rolling snow removing component is avoided.

[0050] The manual control component is connected with the rolling snow removing component and is used for controlling the snow removing operation of the rolling snow removing component.

[0051] Since the photovoltaic module array is arranged obliquely along the longitudinal direction, the rolling snow removing component utilizes the inclination of the photovoltaic array, the rolling wheel rolls from top to bottom along the longitudinal direction of the photovoltaic module array surface when the snow removing is performed, and the snow removing piece rotates through the roller shaft, so that the snow removing piece passes through the photovoltaic module array surface and removes the snow when the snow removing is performed.

[0052] The lateral limiting component limits the lateral position of the rolling snow removing component when the snow removing is performed, and avoids the longitudinal dislocation of the lateral ends of the rolling snow removing component, so that the rolling snow removing component is prevented from deviating from the snow removing range.

[0053] In addition, the manual control component controls the rolling snow removing component to run at a set speed, so that the rolling wheel can be appropriately increased in external force to ensure the rolling of the rolling wheel and drive the snow removing piece to rotate, thereby achieving the snow removing effect, and the speed of the rolling snow removing component can be prevented from being too fast to complete the snow removing effect.

[0054] Therefore, the photovoltaic system rolling snow removing device is simple to operate, has low cost, is effective for reducing the operation and maintenance cost, can adapt to various scenes, and has high applicability.

[0055] It can be understood that if the lateral width of the photovoltaic module array is too large, a plurality of rollers can be arranged side by side in the lateral direction, and the number of rollers can be appropriately increased in the middle in addition to the two rollers arranged on the lateral sides. The rolling space is provided for the roller shaft to ensure the distance between the flexible brush and the surface of the module, so that the accumulated snow can be effectively removed. For example, the distance between the two adjacent rollers is between one time and two times the lateral width of the photovoltaic module.

[0056] In the embodiment, the snow removing member 13 is a rolling brush arranged circumferentially around the roller shaft, and the rolling brush is arranged between the two adjacent rollers 12. The bristles of the rolling brush are made of flexible material and are in flexible contact with the surface of the photovoltaic module array during snow removal. During the rolling of the rollers on the surface of the photovoltaic module array in the longitudinal direction from top to bottom, the roller shaft 11 is driven to rotate, and the rolling brush mounted on the roller shaft also rotates synchronously, so that the accumulated snow on the surface of the photovoltaic module array is removed by the rolling brush, and the bristles made of flexible material do not affect the surface of the photovoltaic module during snow removal.

[0057] In some embodiments, the lateral limiting member is two limiting wheels 14 arranged at the two ends of the roller shaft. Moreover, the diameter of the limiting wheel 14 is greater than the diameter of the roller 12, so that the large enough diameter can correspond to the inner sides of the two limiting wheels to limit the lateral sides of the photovoltaic module array. The arrangement of the two limiting wheels can limit the lateral sides of the photovoltaic module array and can rotate without hindering the movement of the rolling snow removing member on the surface of the photovoltaic module array in the longitudinal direction from top to bottom. It can be understood that a downward extending limiting support can be connected to the two ends of the roller shaft, and a limiting wheel is arranged on the limiting support, and the axial direction of the limiting wheel can be perpendicular to the surface of the photovoltaic module array, so that the limiting wheel rolls with the outer frame of the photovoltaic module on the lateral sides of the photovoltaic module array.

[0058] In some other embodiments, the lateral sides of the photovoltaic module array are provided with limiting grooves extending in the longitudinal direction, and the limiting wheels are matched with the limiting grooves. In this way, the limiting wheels can not only limit the lateral sides, but also roll with the rolling snow removing member to remove the snow.

[0059] In some embodiments, the manual control member is a control rod 15 connected to the two ends of the roller shaft 11. The control rod is rotatably connected to the roller shaft, or the control rod is connected to the roller shaft through a flexible connecting member. The control rod can be lowered to a height that can be controlled by an operator. In order to more conveniently manually remove snow, the manual control member is arranged in the embodiment, and the manual control can appropriately increase the external force to ensure the rolling of the roller shaft and the rotation of the rolling brush downward.

[0060] Example Two

[0061] As Figure 5As shown, on the basis of the first embodiment, the rolling snow removing device further comprises a longitudinal extension support 31 connected with the top longitudinal upper part of the photovoltaic support 3, the longitudinal extension support 31 is provided with a parking panel 32 located in the extending direction of the longitudinal upper side of the photovoltaic module array, the parking panel 32 is used for parking the rolling snow removing component. The rolling snow removing component can be placed on the parking panel during non-working time, which will not cause shadow blocking to the photovoltaic module and will not affect normal power generation.

[0062] Preferably, the parking panel 32 extends obliquely along the longitudinal direction and the inclination angle is greater than the inclination angle of the photovoltaic module array. With the help of the downward slope, the rolling snow removing component is facilitated to move from the parking panel to the surface of the photovoltaic module array during snow removing.

[0063] Further, the longitudinal extension support 31 can be further provided with a pulley 34, the pulley 34 is installed on a pulley support 33, and the manual control component comprises a rope connected with the pulley. Here, the rope can replace the control rod in the first embodiment, and the rolling snow removing component is automatically moved downward for snow removing by relying on the angle of the photovoltaic module array 2. The rope can also cooperate with the control rod in the first embodiment, that is, the control rod controls the rolling snow removing component during snow removing, and the rolling snow removing component returns to the parking panel by the rope traction. In this way, the snow removing operation can be repeated, and the single snow removing operation can be repeated multiple times.

[0064] Further, a winding drum can also be provided on the longitudinal rear row of the photovoltaic support stand, the winding drum is connected with the rope, the winding drum is locked, the rolling snow removing component is parked on the parking panel and cannot move downward, the winding drum is released, the rolling snow removing component runs downward, and the moving speed of the rolling snow removing component can be controlled by controlling the unwinding speed of the winding drum or in combination with the control of the control rod.

[0065] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and those skilled in the art should understand that the utility model includes but is not limited to the content described in the above specific embodiments and the drawings. Any modification without deviating from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A rolling snow removal device for a photovoltaic system, the photovoltaic system comprising a photovoltaic support frame and a photovoltaic module array mounted on top of the photovoltaic support frame, the photovoltaic module array being arranged obliquely along a longitudinal direction, characterized in that, The rolling snow removing device comprises: The rolling snow removing component comprises a rolling shaft, a roller and a snow removing piece mounted on the rolling shaft, the roller rolls from top to bottom along the longitudinal direction of the surface of the photovoltaic module array when removing snow, and the snow removing piece rotates by the rolling shaft, and the snow removing piece passes through the surface of the photovoltaic module array and removes snow when removing snow; the transverse limiting component is arranged on the transverse two sides of the rolling snow removing component, and is used for limiting cooperation with the transverse two sides of the photovoltaic module array, so as to limit the transverse position of the rolling snow removing component when removing snow, and avoid longitudinal misalignment of the transverse two ends of the rolling snow removing component; The manual control component is connected with the rolling snow removing component, and is used for controlling the rolling snow removing component to remove snow.

2. The rolling snow-removal device according to claim 1, characterized in that The snow removing piece is a rolling brush arranged around the rolling shaft in the circumferential direction, and the rolling brush is arranged between the two adjacent rollers.

3. The rolling snow-removal device according to claim 2, characterized in that The bristles of the rolling brush are made of flexible material, and are in flexible contact with the surface of the photovoltaic module array when removing snow.

4. The rolling snow-removal device of claim 1, wherein, The transverse limiting component is two limiting wheels corresponding mounted on the two ends of the rolling shaft.

5. The rolling snow-removal device according to claim 4, characterized in that The diameter of the limiting wheel is greater than that of the roller, and the inner sides of the two limiting wheels correspond to the limiting cooperation with the transverse two sides of the photovoltaic module array.

6. The rolling snow-removal device of claim 4, wherein, The transverse two sides of the photovoltaic module array are provided with limiting grooves extending in the longitudinal direction, and the limiting wheels cooperate with the limiting grooves.

7. The rolling snow-removal device of claim 1, wherein, The manual control component is a control rod connected with the two ends of the rolling shaft.

8. The rolling snow-removal device according to claim 7, characterized in that The control rod is rotatably connected with the rolling shaft, or the control rod is connected with the rolling shaft through a flexible connecting piece.

9. The rolling snow-removal device of claim 1, wherein, The rolling snow removing device further comprises a longitudinal lengthening support connected with the longitudinal upper part of the top of the photovoltaic support, the longitudinal lengthening support is provided with a stationary panel in the extending direction of the longitudinal upper side of the photovoltaic module array, and the stationary panel is used for parking the rolling snow removing component.

10. The rolling snow-removal device of claim 9, wherein, The longitudinal lengthening support is further provided with a pulley, and the manual control component comprises a rope connected with the pulley.

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