Photovoltaic power generation device with long service life

Abstract

The utility model relates to photovoltaic power generation technical field, concretely is a kind of photovoltaic power generation device of long service life, including: main body, including cell board, the side surface of cell board is fixedly connected with support frame, the bottom end fixedly connected with base of support frame, the surface of base is fixedly connected with sewage tank, the inside surface of sewage tank is fixedly connected with filter screen, cleaning mechanism, including slide rail motor, the upper surface of cell board is fixedly connected in slide rail motor.The utility model can be connected water source by being provided with flushing machine, inlet pipe, water pipe and cell board are forty-five degree angle, can effectively flush dust on the upper edge of cell board, by being provided with cleaning plate, bristle can effectively brush and wash the surface of device, by setting torsion spring, can provide opposite torsional force for it when runner rotates, and then exert pressure on rubber brush head on runner, realize runner to effectively clean dirt in corner area with greater force.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power generation technology, specifically to a photovoltaic power generation device with a long service life. Background Technology

[0002] Photovoltaic power generation devices utilize the photovoltaic effect of semiconductor materials to directly convert solar energy into electrical energy, which is an important clean energy technology. Since the devices are placed in the open environment, dust and dirt will accumulate on their surface, which will greatly reduce the power generation efficiency. The common practice is to use manual water spraying and then scrubbing or to directly install automatic scrubbing devices, which can effectively clean the dust and dirt on the surface of the devices.

[0003] However, the above approach still has the following problems: parts that are not cleaned properly are covered by dust and dirt. The covered photovoltaic cells become load resistors that do not generate electricity, turning from power-generating units into power-consuming units, consuming the power generated by connected cells, i.e., the hot spot effect, which will accelerate the aging of the solar panels and may even cause fires in severe cases. At the same time, according to the circuit principle, the current is determined by the smallest part when the modules are connected in series. Therefore, if there is shadow in the corner area, it will directly affect the overall power generation of the module. Therefore, the dust in the corners of the device must be effectively cleaned. However, in the conventional cleaning process, on the one hand, workers often clean the central part of the device, and the corner areas are often overlooked. On the other hand, some devices are equipped with automatic brush cleaning devices that use brush bristles to clean the surface of the device. However, due to the angle, the brushes do not have enough cleaning force in the corner areas, and dust and dirt often remain, affecting the safety of the device and the power generation efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic power generation device with a long service life, so as to solve the problem mentioned in the background art that insufficient cleaning of the corner areas of the photovoltaic power generation device during manual or automatic cleaning causes residual dust and dirt, resulting in overheating and aging of the device and reduced power generation efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a photovoltaic power generation device with a long service life: a main body, including a solar panel, a support frame fixedly connected to the side surface of the solar panel, a base fixedly connected to the bottom end of the support frame, a sewage tank fixedly connected to the surface of the base, and a filter screen fixedly connected to the inner surface of the sewage tank.

[0006] A cleaning mechanism includes a slide rail motor, which is fixedly connected to the upper surface of the solar panel. A rinsing machine is fixedly connected to the side surface of the slide rail motor. A water inlet pipe is fixedly connected to the upper surface of the rinsing machine, and a water spray pipe is fixedly connected to the side surface of the rinsing machine. A slide rail bracket is fixedly connected to the side surface of the slide rail motor. A slide rail bracket has a groove on its surface. A slider is slidably connected inside the groove. A first limiting plate is fixedly connected to the side surface of the slider. A rotating shaft is fixedly connected to the side of the first limiting plate away from the slider. A rotating wheel is rotatably connected to the surface of the rotating shaft. A torsion spring is fixedly connected to the side of the rotating wheel away from the first limiting plate. A second limiting plate is fixedly connected to the end of the torsion spring away from the rotating wheel. A cleaning rod is fixedly connected to the side of the second limiting plate away from the torsion spring. A cleaning plate is fixedly connected to the surface of the cleaning rod, and bristles are fixedly connected to the bottom of the cleaning plate.

[0007] The heat dissipation structure includes a slot located on the lower surface of the battery panel. The slot has fixing grooves at both ends and limiting grooves on both sides. A plate is movably installed inside the slot. A fixing tooth is fixedly connected to the top of the plate, and fixing blocks are fixedly connected to both sides of the plate. A button spring is fixedly installed inside each fixing block. One end of the button spring is fixedly connected to a limiting block, and a limiting button is fixedly connected to the bottom surface of the limiting block. A heat sink is fixedly connected to the bottom of the plate.

[0008] Preferably, the washing machine has a water tank inside, and the water tank is connected to the water inlet pipe and the water spray pipe. The water spray pipe is cylindrical and the cylinder is at a 45-degree angle to the battery panel.

[0009] Preferably, the cross-section of the chute is T-shaped, and a rubber brush head is fixedly connected to the lower end of the rotating wheel, and the length of the rubber brush head is greater than the distance from the bottom of the rotating wheel to the surface of the battery panel.

[0010] Preferably, the rotation direction of the wheel when it moves downward is the same as the tightening direction of the torsion spring.

[0011] Preferably, the top of the slot has a toothed groove, and the shape of the toothed groove corresponds to the fixed tooth.

[0012] Preferably, the shape of the fixing groove corresponds to the shape of the fixing block, and the shape of the limiting groove corresponds to the shape of the limiting block.

[0013] Preferably, the fixing block has an internal receiving groove, and the button spring and the limiting block are installed in the receiving groove. The lower part of the receiving groove of the fixing block has a button groove, and the limiting button is placed in the button groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This long-life photovoltaic power generation device is equipped with a rinsing machine and a water inlet pipe that can be connected to a water source. The water spray pipe is at a 45-degree angle to the solar panel, which can effectively rinse the dust on the upper edge of the solar panel. The cleaning plate and brush can effectively scrub the surface of the device. The torsion spring can provide the opposite torsional force when the wheel rotates, thereby applying pressure to the rubber brush head on the wheel, so that the wheel can effectively clean the dirt in the corner area with greater force.

[0016] 2. This long-life photovoltaic power generation device is equipped with heat sinks to dissipate the heat generated during operation, preventing the temperature from rising and reducing the power generation efficiency. With slots and fixing grooves, the plug-in plate can be movably installed on the lower surface of the solar panel. If some heat sinks are damaged, they can be replaced at any time, saving time and effort while reducing costs. Attached Figure Description

[0017] Figure 1 This is a frontal three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side view sectional view of the three-dimensional structure of this utility model;

[0019] Figure 3 This is a partial structural schematic diagram of the cleaning mechanism of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0021] Figure 5 This is an exploded view of the heat dissipation mechanism of this utility model;

[0022] Figure 6 This utility model Figure 5 A schematic diagram of the cross-sectional structure at point B in the middle.

[0023] In the diagram: 100, battery panel; 101, support frame; 102, base; 103, wastewater tank; 104, filter screen; 200, slide rail motor; 201, flushing machine; 202, water inlet pipe; 203, water spray pipe; 204, slide rail bracket; 205, slide groove; 206, slider; 207, first limiting plate; 208, rotating shaft; 209, rotating wheel; 210, torsion spring; 211, second limiting plate; 212, cleaning rod; 213, cleaning plate; 214, brush bristles; 300, slot; 301, fixing slot; 302, limiting slot; 303, insert plate; 304, fixing tooth; 305, fixing block; 306, button spring; 307, limiting block; 308, limiting button; 309, heat sink. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 One embodiment provided by this utility model:

[0026] A long-life photovoltaic power generation device, comprising:

[0027] The main body includes a battery panel 100. A support frame 101 is fixedly connected to the side surface of the battery panel 100. A base 102 is fixedly connected to the bottom end of the support frame 101. A sewage tank 103 is fixedly connected to the surface of the base 102. A filter screen 104 is fixedly connected to the inner surface of the sewage tank 103. The above structures together realize the load-bearing function of the device, so that the device can be placed stably on the ground. The sewage tank 103 can store the sewage after cleaning, and the filter screen 104 can filter impurities in the sewage.

[0028] The cleaning mechanism includes a slide rail motor 200, which drives a slider 206 to slide in a slide groove 205. The slide rail motor 200 is fixedly connected to the upper surface of the solar panel 100. A rinsing machine 201 is fixedly connected to the side surface of the slide rail motor 200. The rinsing machine 201 can be connected to a water pump to provide power for water spraying. A water inlet pipe 202 is fixedly connected to the upper surface of the rinsing machine 201, and the water inlet pipe 202 can be connected to a water pipe. Several water spray pipes 203 are fixedly connected to the side surface of the rinsing machine 201 to spray clean water from the rinsing machine 201 onto the surface of the solar panel 100. A slide rail bracket 204 is fixedly connected to the side surface of the slide rail motor 200. One slide rail bracket 204 is symmetrically distributed on each side, and the length of the slide rail bracket 204 is longer than the length of the solar panel 100. The other end of the slide rail bracket 204 away from the slide rail motor 200 is fixed to another bracket at the bottom. The surface of the slide rail bracket 204 has openings... The device includes a chute 205, with a slider 206 slidably connected inside. A first limiting plate 207 is fixedly connected to the side surface of the slider 206. A rotating shaft 208 is fixedly connected to the side of the first limiting plate 207 away from the slider 206. The rotating shaft 208 is cylindrical, and a rotating wheel 209 is rotatably connected to the surface of the rotating shaft 208. A torsion spring 210 is fixedly connected to the side of the rotating wheel 209 away from the first limiting plate 207. A second limiting plate 211 is fixedly connected to the end of the torsion spring 210 away from the rotating wheel 209. The torsion spring 210 is wound around the rotating shaft 208, restricting the rotation of the rotating wheel 209 within a small range of angles. A cleaning rod 212 is fixedly connected to the side of the second limiting plate 211 away from the torsion spring 210. A cleaning plate 213 is fixedly connected to the lower end of the surface of the cleaning rod 212, and bristles 214 are fixedly connected to the bottom of the cleaning plate 213. This structure allows the device to perform water spray cleaning automatically, while effectively cleaning the corners and edges of the device.

[0029] The heat dissipation structure includes slots 300, which are located on the lower surface of the battery panel 100. Multiple sets of slots 300 are provided. Fixing grooves 301 are provided at both ends of the slots 300, and limiting grooves 302 are provided on both sides of the fixing grooves 301. The limiting grooves 302 are cylindrical. An insert plate 303 is movably installed inside the slots 300. Fixing teeth 304 are fixedly connected to the top of the insert plate 303. Multiple sets of fixing teeth 304 are provided, and they engage with the grooves on the slots 300 to enhance the stability of the insert plate 303 inside the slots 300. The two sides of the insert plate 303... A fixing block 305 is fixedly connected to the side. The fixing block 305 can be inserted into the fixing slot 301. A button spring 306 is fixedly installed inside the fixing block 305. The button spring 306, the limiting block 307, and the limiting button 308 are all provided in two sets of symmetrical distribution and used together. One end of the button spring 306 is fixedly connected to the limiting block 307. The bottom surface of the limiting block 307 is fixedly connected to the limiting button 308. The limiting button 308 is semi-cylindrical. A heat sink 309 is fixedly connected to the bottom of the insert plate 303. The above structures together realize the heat dissipation function of the device.

[0030] Furthermore, the washing machine 201 has a water tank inside and a control motor is installed. A water pump is installed in the water tank, and the water tank is connected to the water inlet pipe 202 and the water spray pipe 203. The control motor can control the water pump to start, introduce water from the water inlet pipe 202, and then spray it out from the water spray pipe 203. The water spray pipe 203 is cylindrical, and the cylinder is at a 45-degree angle to the solar panel 100, which allows the water spray pipe 203 to spray water on the upper edge area of ​​the solar panel 100, effectively cleaning the dust and dirt in the upper corner area.

[0031] Furthermore, the slide groove 205 has a T-shaped cross-section. The slide rail motor 200 and the slider 206 are connected by a transmission belt. The transmission belt is placed inside the slide groove 205. With the help of the slide rail motor 200 and the slide rail bracket 204, the slider 206 can slide in the slide groove 205 via the transmission belt, thereby driving the cleaning mechanism of the device to slide. A rubber brush head is fixedly connected to the lower end of the rotating wheel 209, and the length of the rubber brush head is greater than the distance from the bottom of the rotating wheel 209 to the surface of the battery panel 100. The above structure makes the rubber brush head fit tightly against the corner areas at both ends of the battery panel 100.

[0032] Furthermore, when the rotating wheel 209 moves downward, its rotation direction is the same as the tightening direction of the torsion spring 210. This structure allows the torsion spring 210 to tighten when the rotating wheel 209 rotates, thus providing a reverse rotational force. This, in turn, applies pressure to the rubber brush head on the rotating wheel 209, cleaning dust more effectively. When the rotating wheel 209 moves upward, its rotation direction is opposite to the tightening direction of the torsion spring 210. The spring is in a relaxed state and does not tighten to provide torsion force. Therefore, the rubber brush head on the rotating wheel 209 does not obstruct the cleaning mechanism from returning to its position. This structure allows the cleaning mechanism to move up and down for easy repeated cleaning.

[0033] Furthermore, the top of the slot 300 is provided with a toothed groove, and the shape of the toothed groove corresponds to the fixed tooth 304. The above structure can fix the fixed tooth 304 in the toothed groove, increasing stability.

[0034] Furthermore, the shape of the fixing groove 301 corresponds to the fixing block 305, and the shape of the limiting groove 302 corresponds to the limiting block 307. The above structure allows the limiting groove 302 to be inserted into the limiting groove 302, thereby fixing the fixing block 305 in the fixing groove 301 and fixing the heat dissipation mechanism on the device.

[0035] Furthermore, the fixing block 305 has an internal receiving groove, and the button spring 306 and the limiting block 307 are installed in the receiving groove. The lower part of the receiving groove of the fixing block 305 has a button groove, and the limiting button 308 is placed in the button groove. The above structure enables the limiting blocks 307 on both sides to be pressed inward to squeeze the button spring 306 by pressing the limiting buttons 308 on both sides at the same time, which facilitates the installation of the heat dissipation mechanism.

[0036] Working principle: The operator places the device on the ground, takes out the heat dissipation mechanism, aligns the insert plate 303 with the slot 300, and presses the limit buttons 308 on both sides of the slot 300. The limit buttons 308 drive the limit block 307 to press the button spring 306 inward. The limit block 307 enters the receiving groove of the fixing block 305. At this time, the insert plate 303 is inserted into the slot 300, the fixing block 305 is inserted into the fixing groove 301, and the fixing teeth 304 enter the toothed groove at the top of the slot 300. At this time, the limit button 308 is released, and the limit block 307 pops out under the action of the button spring 306. The limit block 307 enters the limit groove 302 and is locked. At this time, the installation of the heat dissipation mechanism is completed.

[0037] During cleaning, the control motor in the rinsing machine 201 is turned on. The control motor controls the water pump in the rinsing machine 201 to introduce water from the inlet pipe 202 and then spray it out from the spray pipe 203. The water flow initially rinses the surface of the device. At the same time, the slide rail motor 200 is turned on, and the transmission belt in the slide chute 205 starts to drive and then moves the slider 206 in the slide chute 205. The slider 206 drives the rotating wheel 209, cleaning rod 212, cleaning plate 213, and brush 214 to move and clean the battery panel 100. The brush 214 cleans the battery panel 100. The central part and the two corner areas are cleaned by the rotating wheel 209. When the slider 206 moves downward, the rubber brush head on the rotating wheel 209 is relatively long, so the brush head will be dragged backward, thereby driving the rotating shaft 208 to rotate in the direction of movement. On the one hand, the rotating wheel 209 is fixedly connected to the torsion spring 210, and the torsion spring 210 is also fixedly connected to the second limiting plate 211. The second limiting plate 211 will not rotate, but the rotating shaft 208 will drive the torsion spring 210 to rotate. On the other hand, because the tightening direction of the torsion spring 210 is opposite to that of the rotating wheel... The rotation direction of 209 is the same. The forward rotation of the rotating shaft 208 will cause the torsion spring 210 to tighten, generating a torsional force. In turn, the torsion spring 210 provides a force for the rotating wheel 209 to rotate backward. Since the rubber brush head is dragging on the surface of the battery panel 100 at this time, it forms resistance. The combination of the two causes the rubber brush head to be under pressure and stick tightly to the surface of the battery panel 100, thus scrubbing the surface of the battery panel 100 with greater force. After cleaning, the slider 206 moves to the bottom end of the slide groove 205. At this time, the rubber brush head on the rotating wheel 209 and the battery panel 100 are in contact. The surface of the battery detaches, and the sewage falls into the sewage tank 103. The dirt is filtered by the filter screen 104. When the slider 206 moves to the bottom, the slide rail motor 200 controls the slider 206 to move back. At this time, the rubber brush head is dragged in the opposite direction on the surface of the battery 100, which drives the rotating wheel 209 to rotate. At this time, the rotation direction of the rotating wheel 209 is opposite to the tightening direction of the torsion spring 210. Therefore, the torsion spring 210 will not be tightened to generate torsional force, and thus will not hinder the cleaning mechanism from returning to its original position. After the cleaning mechanism returns to its original position, it starts a new round of cleaning under the drive of the motor.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A long-life photovoltaic power generation device, characterized in that, include: The main body includes a battery panel (100), a support frame (101) is fixedly connected to the side surface of the battery panel (100), a base (102) is fixedly connected to the bottom end of the support frame (101), a sewage tank (103) is fixedly connected to the surface of the base (102), and a filter screen (104) is fixedly connected to the inner surface of the sewage tank (103). The cleaning mechanism includes a slide rail motor (200), which is fixedly connected to the upper surface of the battery panel (100). A rinsing machine (201) is fixedly connected to the side surface of the slide rail motor (200). A water inlet pipe (202) is fixedly connected to the upper surface of the rinsing machine (201). A water spray pipe (203) is fixedly connected to the side surface of the rinsing machine (201). A slide rail bracket (204) is fixedly connected to the side surface of the slide rail motor (200). A slide groove (205) is formed on the surface of the slide rail bracket (204). A slider (206) is slidably connected inside the slide groove (205). A first limiting plate (206) is fixedly connected to the side surface of the slider (206). 7) A rotating shaft (208) is fixedly connected to the side of the first limiting plate (207) away from the slider (206). A rotating wheel (209) is rotatably connected to the surface of the rotating shaft (208). A torsion spring (210) is fixedly connected to the side of the rotating wheel (209) away from the first limiting plate (207). A second limiting plate (211) is fixedly connected to the end of the torsion spring (210) away from the rotating wheel (209). A cleaning rod (212) is fixedly connected to the side of the second limiting plate (211) away from the torsion spring (210). A cleaning plate (213) is fixedly connected to the surface of the cleaning rod (212). Brush bristles (214) are fixedly connected to the bottom of the cleaning plate (213). The heat dissipation structure includes a slot (300) on the lower surface of the battery panel (100). The slot (300) has fixing grooves (301) at both ends and limiting grooves (302) on both sides of the fixing grooves (301). A plug plate (303) is movably installed inside the slot (300). A fixing tooth (304) is fixedly connected to the top of the plug plate (303). Fixing blocks (305) are fixedly connected to both sides of the plug plate (303). A button spring (306) is fixedly installed inside the fixing block (305). A limiting block (307) is fixedly connected to one end of the button spring (306). A limiting button (308) is fixedly connected to the bottom surface of the limiting block (307). A heat sink (309) is fixedly connected to the bottom of the plug plate (303).

2. The long-life photovoltaic power generation device according to claim 1, characterized in that: The washing machine (201) has a water tank inside, and the water tank is connected to the water inlet pipe (202) and the water spray pipe (203). The water spray pipe (203) is cylindrical and forms a 45-degree angle with the battery panel (100).

3. The long-life photovoltaic power generation device according to claim 1, characterized in that: The cross-section of the chute (205) is T-shaped, and a rubber brush head is fixedly connected to the lower end of the rotating wheel (209), and the length of the rubber brush head is greater than the distance from the bottom of the rotating wheel (209) to the surface of the battery panel (100).

4. A long-life photovoltaic power generation device according to claim 1, characterized in that: The rotation direction of the wheel (209) when it moves downward is the same as the tightening direction of the torsion spring (210).

5. A long-life photovoltaic power generation device according to claim 1, characterized in that: The top of the slot (300) is provided with a toothed groove, and the shape of the toothed groove corresponds to the fixed tooth (304).

6. A long-life photovoltaic power generation device according to claim 1, characterized in that: The shape of the fixing groove (301) corresponds to that of the fixing block (305), and the shape of the limiting groove (302) corresponds to that of the limiting block (307).

7. A long-life photovoltaic power generation device according to claim 1, characterized in that: The fixed block (305) has an internal receiving groove, and the button spring (306) and the limiting block (307) are installed in the receiving groove. The lower part of the receiving groove of the fixed block (305) has a button groove, and the limiting button (308) is placed in the button groove.

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