Automatic smearing coating device and coating method for photovoltaic module

Abstract

The invention relates to an automatic coating device and method for a photovoltaic module, and the device is disposed on the photovoltaic module, and comprises a walking mechanism, a main frame, a crawling mechanism, and a photovoltaic module surface treatment mechanism. The photovoltaic module processing mechanism is a smearing mechanism or a cleaning mechanism; the walking mechanism is used for transversely moving along the surface of the photovoltaic module; the main frame is connected with the walking mechanism. The crawling mechanism is mounted on the main frame; and the smearing mechanism is connected with the crawling mechanism, comprises a liquid supply system, sponge, a non-woven fabric recovery structure and a lifting device, and is used for spraying coating liquid to the surface of the photovoltaic module. The automatic coating equipment has the beneficial effects that automatic coating can be realized, and the equipment can accurately perform automatic coating operation on the photovoltaic module according to a preset process. When the device operates on the photovoltaic module, the automatic anti-falling function can be achieved, safe coating work of equipment is guaranteed, and module coating work of a set area can be completed according to planning without manual intervention.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic module coating, and more specifically, it relates to an automatic coating device and coating method for photovoltaic modules. Background Art

[0002] Since there is an interface between the photovoltaic encapsulation glass and air, it will cause about 4% of sunlight reflection. This part of the reflected sunlight cannot participate in the photovoltaic conversion process, resulting in a certain amount of light loss. The antireflection film uses the principle of destructive interference of light to achieve the purpose of antireflection, and can effectively suppress the light reflection loss caused by the refractive index difference at the interface. After long-term outdoor use of a solar power station, due to the influence of the climate environment such as dust occlusion, sand blowing, and acid rain erosion, the antireflection and antireflection film on the surface of the photovoltaic glass will be damaged, showing phenomena such as scratches, peeling, and internal structure corrosion and collapse, thus losing the antireflection function. These problems also cause a reduction in the power generation of photovoltaic modules. In addition to reflection loss, under outdoor use conditions of photovoltaic modules, the surface of the module is often blocked by various pollutants such as dust and organic dirt, resulting in a significant decrease in the sunlight incident on the module.

[0003] Therefore, in addition to regular operation and maintenance of photovoltaic power stations, cleaning photovoltaic modules and in-situ coating on the surface to repair the antireflection film has become an important method for improving the quality and efficiency of photovoltaic power stations. At present, coating is mostly independently completed by manual labor, with low efficiency and poor uniformity. Therefore, developing equipment that can directly coat on the surface of modules integrally can improve the power generation efficiency of photovoltaic power stations, reduce production costs, and provide strong support for the sustainable development of the photovoltaic industry.

[0004] Currently, there is no mature photovoltaic module coating equipment. The on-site film layer repair of photovoltaic modules mostly relies on manual smearing or semi-automatic equipment, which has problems such as high working intensity, low working efficiency, uneven coating thickness, low utilization rate of coating solution, and will release fine particles during the coating process, causing harm to the human body, and operators face high occupational health risks. In addition, limited by the immature development of equipment, the coating uniformity of such manual smearing or semi-automatic equipment is poor and the cost is high. Therefore, there is an urgent need to develop a highly intelligent photovoltaic module coating equipment with uniform film formation to meet the urgent needs of improving the quality and efficiency of existing photovoltaic power stations. Summary of the Invention

[0005] The purpose of the present invention is to propose an automatic coating device and coating method for photovoltaic modules in view of the deficiencies of the prior art.

[0006] In a first aspect, an automatic coating device for photovoltaic modules is provided. The automatic coating device for photovoltaic modules is installed on a photovoltaic module and includes: a first traveling mechanism, a second traveling mechanism, a main frame, a crawling mechanism, and a surface treatment mechanism for photovoltaic modules; the photovoltaic module treatment mechanism is a coating mechanism or a cleaning mechanism; Among them, the first traveling mechanism and the second traveling mechanism are used to move horizontally along the surface of the photovoltaic module; the main frame is connected to the first traveling mechanism and the second traveling mechanism; the crawling mechanism is installed on the main frame, and the crawling mechanism is used to move longitudinally along the main frame; the coating mechanism is connected to the crawling mechanism and includes a liquid supply system, a sponge, a non-woven fabric recycling structure, and a lifting device, and is used to spray a coating solution onto the surface of the photovoltaic module.

[0007] Preferably, the automatic coating device for photovoltaic modules further includes a spraying control system, and the spraying control system is used to control the movement of the first traveling mechanism and the second traveling mechanism, the movement of the crawling mechanism, the spraying parameters of the coating mechanism, and the recycling of non-woven fabrics.

[0008] Preferably, a water pump is provided on the crawling mechanism, and the liquid supply system includes a main liquid supply pipeline and a sub-liquid supply pipeline; the water pump provides a coating solution to the coating mechanism or a water source to the cleaning mechanism through the main liquid supply pipeline; the coating mechanism provides a coating solution to the sponge through the sub-liquid supply pipeline; the sponge is in contact with the surface of the photovoltaic module.

[0009] Preferably, the non-woven fabric recycling structure includes a recycling rod bearing, a ratchet shaft sleeve, a ratchet, a driven wheel, a recycling rod flange, a driven wheel pressing plate, a recycling rod hanging rod frame, a recycling rod, a recycling rod cloth pressing member, and a recycling rod cloth pressing member; Among them, the recycling rod bearing, the ratchet shaft sleeve, the ratchet, and the driven wheel are nested in the recycling rod flange, and the end face of the recycling rod flange is equipped with a driven wheel pressing plate through bolts; the recycling rod bearing is installed in the bearing hole of the recycling rod hanging rod frame, and there is a recycling rod inside the recycling rod flange; the recycling rod cloth pressing member fixes the non-woven fabric on the recycling rod; the recycling rod pressing plate fixing blocks are connected to the threaded holes on the recycling rod flange at both ends of the recycling rod cloth pressing member.

[0010] Preferably, the non-woven fabric recycling structure further includes a pawl, and the pawl is installed on the recycling rod hanging rod frame to prevent the recycled non-woven fabric from slipping.

[0011] Preferably, the spraying control system includes a main controller, a remote controller, and a coating controller that are communicatively connected; the main controller is used to control the movement of the first traveling mechanism and send control instructions to the remote controller and the coating controller; the remote controller is used to control the movement of the second traveling mechanism; the coating controller controls the motor to drive the coating mechanism to move in a direction close to or away from the photovoltaic module.

[0012] In a second aspect, a coating method for the photovoltaic module automatic coating device as described in any one of the first aspects is provided. When the photovoltaic module processing mechanism is a coating mechanism, the method includes the following steps: Step 1: Position the photovoltaic module automatic coating device on the surface of the photovoltaic module and move it to the area to be coated on the surface of the photovoltaic module through the first traveling mechanism and the second traveling mechanism; Step 2: Control the crawling mechanism to move along the main frame, and at the same time, turn on the nozzle to inject the coating liquid into the sponge bin so that the coating liquid soaks the sponge; Step 3: Adjust the height of the coating mechanism through the lifting device and perform coating at a preset pressure and speed; Step 4: After completing a single coating, pause the operation of the crawling mechanism and turn off the nozzle; move to the next coating area on the surface of the photovoltaic module through the first traveling mechanism and the second traveling mechanism, and the non-woven fabric recycling structure recycles the soiled non-woven fabric and covers the clean non-woven fabric on the surface of the sponge; Step 5: Repeat steps 2-4 so that the moving path of the photovoltaic module automatic coating device covers the surface of the photovoltaic module until the photovoltaic module automatic coating device moves to the edge of the photovoltaic module.

[0013] Preferably, in step 5, the main frame moves left and right along the surface of the photovoltaic module through the first traveling mechanism and the second traveling mechanism. The moving direction of the coating mechanism is orthogonal to the moving direction of the first traveling mechanism and the second traveling mechanism, and the coating mechanism completes the coating operation in a zigzag shape on the surface of the photovoltaic module.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention is suitable for in-situ large-area coating, without any modification to the photovoltaic module, and can perform in-situ coating without affecting the power generation of the photovoltaic module. Moreover, the coating area is large, greatly improving the efficiency of the photovoltaic module coating process.

[0015] 2. The present invention uses a splicable modular track, which is not limited by the size of the photovoltaic module, has good adaptability, and the traveling direction of the coating mechanism is orthogonal to the traveling direction of the traveling mechanism, ensuring that the entire surface of the photovoltaic module can be coated without dead corners.

[0016] 3. The present invention can realize automatic coating, and the equipment can accurately perform automatic coating operations on the photovoltaic module according to the preset process. The device can realize an automatic anti-falling function when running on the photovoltaic module, ensuring the safe coating work of the equipment, and can complete the coating work of the components in the planned area without manual intervention.

[0017] 4. The coating method used in the present invention greatly reduces the usage amount of the coating liquid, and can control the film-forming effect by adjusting parameters such as height, angle, and pressure, effectively improving the coating accuracy and uniformity. Description of the Drawings

[0018] Figure 1 The general assembly drawing of the photovoltaic coating equipment provided by the present invention; Figure 2 The effect drawing of the traveling mechanism provided by the present invention; Figure 3 The exploded view of the traveling mechanism provided by the present invention; Figure 4 The effect drawing of the main frame provided by the present invention; Figure 5 The exploded view of the main frame provided by the present invention; Figure 6 The effect drawing of the crawling mechanism provided by the present invention; Figure 7 The exploded view of the crawling mechanism provided by the present invention; Figure 8 The effect drawing of the coating mechanism provided by the present invention; Figure 9 The exploded view of the coating mechanism provided by the present invention; Figure 10 The flow chart of the coating method provided by the present invention; Figure 11 The control schematic diagram of the photovoltaic coating equipment provided by the present invention; Figure 12 The effect drawing of the cleaning mechanism provided by the present invention; Figure 13 The exploded view of the cleaning mechanism provided by the present invention; Figure 14 The flow chart of the cleaning method provided by the present invention; Description of the reference numerals: The first traveling mechanism 1, the first copper column 101, the second copper column 111, the third copper column 112, the fourth copper column 113, the fifth copper column 114, the sixth copper column 151, the seventh copper column 152, the eighth copper column 153, the first photoelectric sensor 102, the second photoelectric sensor 110, the third photoelectric sensor 126, the fourth photoelectric sensor 143, the first photoelectric sensor fixing plate 103, the second photoelectric sensor fixing plate 109, the first bushing 104, the second bushing 115, the third bushing 134, the fourth bushing 142, the first wheel shaft fixing block 105, the second wheel shaft fixing block 116, the third wheel shaft fixing block 123, the fourth wheel shaft fixing block 129, the fifth wheel shaft fixing block 133, the sixth wheel shaft fixing block 135, the seventh wheel shaft fixing block 141, the eighth wheel shaft fixing block 145, the first traveling wheel shaft 106, the second traveling wheel shaft 124, the first driven pulley 107, the second driven pulley 120, the traveling mechanism support tube 108, the first traveling wheel shaft mounting plate 117, the second traveling wheel shaft mounting plate 150, the first traveling wheel motor 118, the second traveling wheel motor 149, the first traveling wheel belt 119, the second traveling wheel belt 148, the first driving pulley 121, the second driving pulley 146, the first bevel gear 122, the second bevel gear 128, the third bevel gear 138, the fourth bevel gear 147, the first L-shaped traveling wheel mounting plate 125, the second L-shaped traveling wheel mounting plate 144, the first traveling wheel 127, the second traveling wheel 136, the first side stop device 130, the second side stop device 137, the first limit wheel shaft 131, the second limit wheel shaft 139, the first limit wheel 132, the second limit wheel 140, the main frame 2, the first profile connector 201, the second profile connector 207, the third profile connector 213;The first long profile 202, the second long profile 208, the first side connection member 203, the second side connection member 211, the first extended side connection member 204, the second extended side connection member 216, the crawler groove 205, the synchronous belt 206, the first side connection member of the traveling device 209, the second side connection member of the traveling device 218, the third side connection member of the traveling device 224, the fourth side connection member of the traveling device 228, the first connection member of the traveling device 210, the second connection member of the traveling device 220, the third connection member of the traveling device 222, the fourth connection member of the traveling device 223, the first inner connection member of the vertical profile 212, the second inner connection member of the vertical profile 221, the first synchronous belt fixing clip 214, the second synchronous belt fixing clip 229, the first outer connection member of the vertical profile 215, the second outer connection member of the vertical profile 227, the first vertical profile 217, the second vertical profile 226, the first short profile 219, the second short profile 225, the crawling mechanism 3, the first fixing plate of the lifting mechanism 301, the second fixing of the lifting mechanism 322, the first lifting chute 302, the second lifting chute 323, the third lifting chute 326, the fourth lifting chute 354, the first linear motor 303, the second linear motor 325, the first vertical limiting wheel 304, the second vertical limiting wheel 310, the third vertical limiting wheel 319, the fourth vertical limiting wheel 334, the fifth vertical limiting wheel 336, the sixth vertical limiting wheel 339, the seventh vertical limiting wheel 343, the eighth vertical limiting wheel 348, the first horizontal limiting wheel 305, the second horizontal limiting wheel 307, the third horizontal limiting wheel 332, the fourth horizontal limiting wheel 337, the fifth horizontal limiting wheel 342, the sixth horizontal limiting wheel 345, the seventh horizontal limiting wheel 349, the eighth horizontal limiting wheel 350, the first fixing block of the horizontal limiting wheel 306, the second fixing block of the horizontal limiting wheel 308, the third fixing block of the horizontal limiting wheel 321, the fourth fixing block of the horizontal limiting wheel 330, the fifth fixing block of the horizontal limiting wheel 331, the sixth fixing block of the horizontal limiting wheel 346, the seventh fixing block of the horizontal limiting wheel 351, the eighth fixing block of the horizontal limiting wheel 352;The first connecting copper post 309, the second connecting copper post 324, the L-shaped angle code 311, the first edge device 312, the second edge device 341, the first tension pulley 313, the second tension pulley 315, the crawler belt pulley 314, the water pump connecting piece 316, the water pump 317, the crawler motor 318, the short copper post 320, the first lifting plate 327, the second lifting plate 356, the first cabin connecting piece 328, the second cabin connecting piece 355, the first linear motor connecting block 329, the second linear motor connecting block 353, the motor fixing plate 333, the first side plate fixing strip 335, the second side plate fixing strip 344, two tension pulley shafts 338, the crawler mechanism top plate 340, the crawler mechanism side plate 347, the coating mechanism 4, the first non-woven fabric hanging rod frame 401, the second non-woven fabric hanging rod frame 409, the L-shaped small angle code 402, the first side plate 403, the second side plate 411, the non-woven fabric hanging rod 404, the first cabin support pipe 405, the first main liquid supply pipeline 406, the second main liquid supply pipeline 407, the first hanging rod bearing 408, the second hanging rod bearing 448, the first recovery motor 410, the second recovery motor 443, the first motor flange 412, the second motor flange 447, the first driving pulley 413, the second driving pulley 446, the first driving wheel pressure plate 414, the second driving wheel pressure plate 445, the first recovery rod pressure plate fixing block 415, the second recovery rod pressure plate fixing block 431, the first synchronous belt 416, the second synchronous belt 444, the first driven wheel pressure plate 417, the second driven wheel pressure plate 439, the first driven wheel 418, the second driven wheel 440, the first ratchet 419, the second ratchet 438, the first ratchet shaft sleeve 420, the second ratchet shaft sleeve 437, the first recovery rod bearing 421, the second recovery rod bearing 436, the first recovery rod flange 422, the second recovery rod flange 433, the first ratchet pawl 423, the second ratchet pawl 435, the first recovery rod hanging rod frame 424, the second recovery rod hanging rod frame 434, the recovery rod cloth pressing piece 425, the first liquid supply branch pipeline 426, the second liquid supply branch pipeline 429, the recovery rod 427, the non-woven fabric 428, the sponge bin 430, the first non-woven fabric support rod 432, the second non-woven fabric support rod 442, the sponge 441, the one-character angle code 449, the second traveling mechanism 5, the cleaning mechanism 6, the first cleaning brush roller 601, the second cleaning brush roller 618, the first nozzle 602, the second nozzle 605, the third nozzle 607, the fourth nozzle 608, the first nozzle holder 603, the second nozzle holder 606, the third nozzle holder 609, the fourth nozzle holder 617, the first water supply pipeline 604, the second water supply pipeline 616, the waterproof plate 610, the first side plate 611, the second side plate 624, the first brush roller bearing 612, the second brush roller bearing 625, the first driven belt pulley 613, the second driven belt pulley 626, the first driving belt pulley 614, the second driving belt pulley 623, the first cleaning motor 615, the second cleaning motor 622, the first brush roller connecting piece 619, the second brush roller connecting piece 620, the second cabin support pipe 621.; Detailed implementation manners

[0019] The present invention will be further described below in conjunction with embodiments. The description of the following embodiments is only used to help understand the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0020] Embodiment 1: To solve the problems of the prior art, this application designs an automatic coating device for photovoltaic modules. The coating mechanism is controlled by an embedded control system, and parameters such as the liquid inlet rate, coating pressure, and coating speed are adjusted. To achieve precise and automatic coating of the coating mechanism, so as to solve the problems of uneven coating thickness and low utilization rate of the coating solution. And, through the embedded control system, the device is controlled to automatically position and move on the photovoltaic module, so as to solve the problems of high labor intensity and low work efficiency caused by workers manually moving the device. In addition, this device is installed on the photovoltaic module, occupies less space, has lower requirements for the space of the implementation site, and is easy to implement. The device can be stably mounted on a photovoltaic power generation module with an angle not greater than 40°, can adapt to different models and sizes of photovoltaic modules, and has stable movement ability.

[0021] Specifically, the automatic coating device for photovoltaic modules is installed on the photovoltaic module, and includes: a first walking mechanism 1, a second walking mechanism 5, a main frame 2, a crawling mechanism 3, and a photovoltaic module surface treatment mechanism; the photovoltaic module treatment mechanism is a coating mechanism 4; Among them, the first walking mechanism 1 and the second walking mechanism 5 are used to move horizontally along the surface of the photovoltaic module; the main frame 2 is connected to the first walking mechanism 1 and the second walking mechanism 5; the crawling mechanism 3 is installed on the main frame 2, and the crawling mechanism 3 is used to move longitudinally along the main frame 2; the coating mechanism 4 is connected to the crawling mechanism 3 and includes a liquid supply system, a sponge 441, a non-woven fabric recycling structure, and a lifting device for spraying the coating solution onto the surface of the photovoltaic module.

[0022] This application is based on the main frame 2. The first traveling mechanism 1 and the second traveling mechanism 5 are firmly installed at both ends of the main frame 2 through four connecting pieces respectively. The crawling mechanism 3 is closely attached to the main frame 2 through vertical limiting wheels and horizontal limiting wheels to ensure that the crawling mechanism 3 does not shake. The driving wheel is closely attached to the synchronous belt through the tensioning wheel, so that the crawling mechanism 3 will not slip during the movement. The equipment adopts a modular design. The working mechanism connected to the crawling mechanism 3 can be mounted with a coating mechanism 4. The coating mechanism 4 is connected to the crawling mechanism 3 through a lifting device and can adjust the vertical height according to the height of the photovoltaic panel. The lifting device consists of the following: the first lifting mechanism fixing plate 301, the second lifting mechanism fixing 322, the second lifting chute 323, the third lifting chute 326, the fourth lifting chute 354, the first linear motor 303, the second linear motor 325, the first lifting plate 327, the second lifting plate 356, the first linear motor connecting block 329, and the second linear motor connecting block 353. In addition, the installation diagram of the photovoltaic coating equipment with the coating mechanism 4 installed is as Figure 1 shown.

[0023] Specifically, as Figure 2 and Figure 3 shown, the traveling mechanism 1 includes the first copper column 101, the second copper column 111, the third copper column 112, the fourth copper column 113, the fifth copper column 114, the sixth copper column 151, the seventh copper column 152, the eighth copper column 153, the first photoelectric sensor 102, the second photoelectric sensor 110, the third photoelectric sensor 126, the fourth photoelectric sensor 143, the first photoelectric sensor fixing plate 103, the second photoelectric sensor fixing plate 109, the first bushing 104, the second bushing 115, the third bushing 134, the fourth bushing 142, the first wheel shaft fixing block 105, the second wheel shaft fixing block 116, the third wheel shaft fixing block 123, the fourth wheel shaft fixing block 129, the fifth wheel shaft fixing block 133, the sixth wheel shaft fixing block 135, the seventh wheel shaft fixing block 141, the eighth wheel shaft fixing block 145, the first traveling wheel shaft 106, the second traveling wheel shaft 124, the first driven pulley 107, the second driven pulley 120, the traveling mechanism support tube 108, the first traveling wheel shaft mounting plate 117, the second traveling wheel shaft mounting plate 150, the first traveling wheel motor 118, the second traveling wheel motor 149, the first traveling wheel belt 119, the second traveling wheel belt 148, the first driving pulley 121, the second driving pulley 146, the first bevel gear 122, the second bevel gear 128, the third bevel gear 138, the fourth bevel gear 147, the first L-shaped traveling wheel mounting plate 125, the second L-shaped traveling wheel mounting plate 144, the first traveling wheel 127, the second traveling wheel 136, the first side stop device 130, the second side stop device 137, the first limiting wheel shaft 131, the second limiting wheel shaft 139, the first limiting wheel 132, and the second limiting wheel 140.

[0024] The connection relationships of the components in the traveling mechanism 1 are as follows: The first photoelectric sensor 102 and the second photoelectric sensor 110 are connected to the first photoelectric sensor fixing plate 103 and the second photoelectric sensor fixing plate 109 and fixed to the traveling mechanism support pipe 108 through the first copper column 101, the second copper column 111, the third copper column 112, the fourth copper column 113, the fifth copper column 114, the sixth copper column 151, the seventh copper column 152, and the eighth copper column 153; the third photoelectric sensor 126 and the fourth photoelectric sensor 143 are directly installed on the traveling mechanism support pipe 108.

[0025] The first traveling wheel shaft 106 is connected to the second traveling wheel shaft mounting plate 150 through the first wheel shaft fixing block 105 and the first shaft sleeve 104. The first driven pulley 107, the third bevel gear 138, the second L-shaped traveling wheel mounting plate 144, the sixth wheel shaft fixing block 135, and the second traveling wheel 136 are sequentially nested on the first traveling wheel shaft 106 to form a traveling wheel shaft assembly; the second traveling wheel shaft 124 is connected to the first traveling wheel shaft mounting plate 117 through the second shaft sleeve 115 and the second wheel shaft fixing block 116. The second driven pulley 120, the first bevel gear 122, the first L-shaped traveling wheel mounting plate 125, the third wheel shaft fixing block 123, and the first traveling wheel 127 are sequentially nested on the second traveling wheel shaft 124 to form another traveling wheel shaft assembly.

[0026] The first limit wheel shaft 131 is fixed to the traveling mechanism support pipe 108 through the fifth wheel shaft fixing block 133 and the third shaft sleeve 134. The first limit wheel 132, the first L-shaped traveling wheel mounting plate 125, the fourth wheel shaft fixing block 129, and the second bevel gear 128 are sequentially nested on the first limit wheel shaft 131 to form a limit wheel assembly; the second limit wheel shaft 139 is fixed to the traveling mechanism support pipe 108 through the seventh wheel shaft fixing block 141 and the fourth shaft sleeve 142. The second limit wheel 140, the second L-shaped traveling wheel mounting plate 144, the eighth wheel shaft fixing block 145, and the fourth bevel gear 147 are sequentially nested on the second limit wheel shaft 139 to form another limit wheel assembly.

[0027] The first side stop device 130 and the second side stop device 137 are directly fixed to the traveling mechanism support pipe 108 by bolts, enabling the device to stop at the edge position when transitioning between two photovoltaic panels.

[0028] The first traveling wheel motor 118 and the second traveling wheel motor 149 are respectively fixed on the first traveling wheel shaft mounting plate 117 and the second traveling wheel shaft mounting plate 150 by bolts; the first driving pulley 121 is fixed on the output shaft of the first traveling wheel motor 118, and the second driving pulley 146 is fixed on the output shaft of the second traveling wheel motor 149; the first traveling wheel belt 119 is installed around the second driven pulley 120 and the first driving pulley 121, and the second traveling wheel belt 148 is installed between the first driven pulley 107 and the second driving pulley 146. In this way, the power of the motor is transmitted to the driving wheel.

[0029] In addition, as Figure 4 and Figure 5 shown, the main frame 2 includes: The first profile connector 201, the second profile connector 207, the third profile connector 213; the first long profile 202, the second long profile 208, the first side connector 203, the second side connector 211, the first extended side connector 204, the second extended side connector 216, the crawler groove 205, the synchronous belt 206, the first traveling device side connector 209, the second traveling device side connector 218, the third traveling device side connector 224, the fourth traveling device side connector 228, the first traveling device connector 210, the second traveling device connector 220, the third traveling device connector 222, the fourth traveling device connector 223, the first vertical profile inner connector 212, the second vertical profile inner connector 221, the first synchronous belt fixing clip 214, the second synchronous belt fixing clip 229, the first vertical profile outer connector 215, the second vertical profile outer connector 227, the first vertical profile 217, the second vertical profile 226, the first short profile 219, the second short profile 225.

[0030] The connection relationships of the components in the main frame 2 are: The first long profile 202 and the second long profile 208 are connected together by a second profile connector 207. The first profile connector 201 inside the first long profile 202 and the third profile connector 213 inside the second long profile 208 can be used to connect external devices. The second vertical profile 226 is connected to the second vertical profile 226 through a first side connector 203, a first extended side connector 204, a second vertical profile internal connector 221, and a second vertical profile external connector 227; the first vertical profile 217 is connected to the second profile connector 207 through a second side connector 211, a first vertical profile internal connector 212, a first vertical profile external connector 215, and a second extended side connector 216; the first short profile 219 is connected to the first vertical profile 217 through a first traveling device side connector 209, a first traveling device connector 210, a second traveling device side connector 218, and a second traveling device connector 220; the second short profile 225 is connected to the second vertical profile 226 through a third traveling device connector 222, a fourth traveling device connector 223, a third traveling device side connector 224, and a fourth traveling device side connector 228. The six-profile parts form the basis of the main frame. The first vertical profile 217 and the second vertical profile 226 can be fixed at different hole positions on the first long profile 202 and the second long profile 208 to adapt to photovoltaic modules of different sizes.

[0031] The crawler grooves 205 and the synchronous belt 206 are directly connected to the first long profile 202 and the second long profile 208. The first synchronous belt fixing clip 214 is fixed on the second long profile 208, and the second synchronous belt fixing clip 229 is fixed on the first long profile 202.

[0032] As Figure 6 and Figure 7 shown, the crawling mechanism 3 includes: The first lifting mechanism fixing plate 301, the second lifting mechanism fixing plate 322, the first lifting chute 302, the second lifting chute 323, the third lifting chute 326, the fourth lifting chute 354, the first linear motor 303, the second linear motor 325, the first vertical limiting wheel 304, the second vertical limiting wheel 310, the third vertical limiting wheel 319, the fourth vertical limiting wheel 334, the fifth vertical limiting wheel 336, the sixth vertical limiting wheel 339, the seventh vertical limiting wheel 343, the eighth vertical limiting wheel 348, the first horizontal limiting wheel 305, the second horizontal limiting wheel 307, the third horizontal limiting wheel 332, the fourth horizontal limiting wheel 337, the fifth horizontal limiting wheel 342, the sixth horizontal limiting wheel 345, the seventh horizontal limiting wheel 349, the eighth horizontal limiting wheel 350, the first horizontal limiting wheel fixing block 306, the second horizontal limiting wheel fixing block 308, the third horizontal limiting wheel fixing block 321, the fourth horizontal limiting wheel fixing block 330, the fifth horizontal limiting wheel fixing block 331, the sixth horizontal limiting wheel fixing block 346, the seventh horizontal limiting wheel fixing block 351, the eighth horizontal limiting wheel fixing block 352; the first connecting copper column 309, the second connecting copper column 324, the L-shaped angle code 311, the first edge device 312, the second edge device 341, the first tensioning wheel 313, the second tensioning wheel 315, the crawler belt wheel 314, the water pump connecting piece 316, the water pump 317, the crawler motor 318, the short copper column 320, the first lifting plate 327, the second lifting plate 356, the first cabin connecting piece 328, the second cabin connecting piece 355, the first linear motor connecting block 329, the second linear motor connecting block 353, the motor fixing plate 333, the first side plate fixing strip 335, the second side plate fixing strip 344, two tensioning wheel shafts 338, the crawler mechanism top plate 340, the crawler mechanism side plate 347.

[0033] The connection relationships of the components in the crawler mechanism 3 are as follows: The crawler mechanism top plate 340 is respectively connected to the crawler mechanism side plate 347 and the motor fixing plate 333 through several L-shaped angle codes 311 to form the main structure of the crawler mechanism housing. The first lifting mechanism fixing plate 301 and the second lifting plate 356 are movably connected through the first lifting chute 302 and the fourth lifting chute 354, and the second lifting plate 356 can move in the vertical direction; the first lifting mechanism fixing plate 301 is fixedly connected to the crawler mechanism side plate 347 through four first connecting copper columns 309; the second lifting mechanism fixing plate 322 and the first lifting plate 327 are movably connected through the second lifting chute 323 and the third lifting chute 326, and the first lifting plate 327 can move in the vertical direction; the second lifting mechanism fixing plate 322 is fixedly connected to the motor fixing plate 333 through four second connecting copper columns 324.

[0034] A second lifting plate 356 is fixedly connected with a second cabin connecting piece 355, a first lifting plate 327 is fixedly connected with a first cabin connecting piece 328, a first lifting mechanism fixing plate 301 is fixedly connected with a first linear motor 303, and a second lifting mechanism fixing part 322 is fixedly connected with a second linear motor 325; the second cabin connecting piece 355 and the first cabin connecting piece 328 are further connected to a first cabin support pipe 405 and a first horizontal limiting wheel 305 through bolts. Output shafts of the first linear motor 303 and the second linear motor 325 are respectively connected with a second linear motor connecting block 353 and a first linear motor connecting block 329; the second linear motor connecting block 353 and the first linear motor connecting block 329 are further connected to the first cabin support pipe 405 and the first horizontal limiting wheel 305 through bolts. The height of the smearing mechanism can be adjusted by the first linear motor 303 and the second linear motor 325.

[0035] A first vertical limiting wheel 304, a second vertical limiting wheel 310, a third vertical limiting wheel 319, and an eighth vertical limiting wheel 348 are fixedly installed on a side plate 347 of the crawling mechanism. A fourth vertical limiting wheel 334, a fifth vertical limiting wheel 336, a sixth vertical limiting wheel 339, and a seventh vertical limiting wheel 343 are fixedly installed on the side plate 347 of the crawling mechanism. The eight vertical limiting wheels enable the crawling mechanism to closely adhere to the upper and lower surfaces of the main frame 2.

[0036] A first horizontal limiting wheel 305, a second horizontal limiting wheel 307, a seventh horizontal limiting wheel 349, and an eighth horizontal limiting wheel 350 are respectively connected to the side plate 347 of the crawling mechanism through a first horizontal limiting wheel fixing block 306, a second horizontal limiting wheel fixing block 308, a seventh horizontal limiting wheel fixing block 351, and an eighth horizontal limiting wheel fixing block 352. A fourth horizontal limiting wheel 337, a fifth horizontal limiting wheel 342, a third horizontal limiting wheel 332, and a sixth horizontal limiting wheel 345 are respectively connected to a motor fixing plate 333 through a third horizontal limiting wheel fixing block 321, a fourth horizontal limiting wheel fixing block 330, a fifth horizontal limiting wheel fixing block 331, and a sixth horizontal limiting wheel fixing block 346. The eight horizontal limiting wheels ensure that the equipment will not deviate during horizontal movement.

[0037] The first tension pulley 313 and the second tension pulley 315 are nested on two tension pulley shafts 338, and a synchronous belt 206 is wrapped around the outer side of the crawling pulley 314. The tension pulleys keep the driving pulley and the synchronous belt in close contact to prevent slipping. The crawling pulley 314 is installed on the motor fixing plate 333 by bolts. The water pump connecting piece 316 is installed on the crawling pulley 314 by bolts and is connected to the motor fixing plate 333 through a short copper column 320. A water pump 317 is fixedly connected thereto by bolts, and this device provides a liquid source for the cleaning or coating mechanism. The first edge device 312 and the second edge device 341 are fixedly connected to the crawling mechanism top plate 340. The two ends of the first side plate fixing strip 335 and the second side plate fixing strip 344 are respectively connected to the motor fixing plate 333 and the crawling mechanism side plate 347 through L-shaped angle codes 311 to improve the structural strength.

[0038] As Figure 8 and Figure 9 shown, the coating mechanism 4 includes: The first non-woven fabric hanging rod frame 401, the second non-woven fabric hanging rod frame 409, the L-shaped small angle code 402, the first side plate 403, the second side plate 411, the non-woven fabric hanging rod 404, the first cabin support pipe 405, the first main liquid supply pipe 406, the second main liquid supply pipe 407, the first hanging rod bearing 408, the second hanging rod bearing 448, the first recovery motor 410, the second recovery motor 443, the first motor flange 412, the second motor flange 447, the first driving pulley 413, the second driving pulley 446, the first driving wheel pressing plate 414, the second driving wheel pressing plate 445, the first recovery rod pressing plate fixing block 415, the second recovery rod pressing plate fixing block 431, the first synchronous belt 416, the second synchronous belt 444, the first driven wheel pressing plate 417, the second driven wheel pressing plate 439, the first driven wheel 418, the second driven wheel 440, the first ratchet 419, the second ratchet 438, the first ratchet shaft sleeve 420, the second ratchet shaft sleeve 437, the first recovery rod bearing 421, the second recovery rod bearing 436, the first recovery rod flange 422, the second recovery rod flange 433, the first ratchet pawl 423, the second ratchet pawl 435, the first recovery rod hanging rod frame 424, the second recovery rod hanging rod frame 434, the recovery rod cloth pressing member 425, the first liquid supply branch pipe 426, the second liquid supply branch pipe 429, the recovery rod 427, the non-woven fabric 428, the sponge bin 430, the first non-woven fabric support rod 432, the second non-woven fabric support rod 442, the sponge 441, the straight angle code 449.

[0039] The connection relationships of the components in the coating mechanism 4 are as follows: The first side plate 403 and the second side plate 411 are connected to the first cabin support pipe 405 through the L-shaped small angle code 402 to serve as the basis of the coating mechanism.

[0040] Both ends of the non-woven fabric hanging rod 404 are equipped with a first hanging rod bearing 408 and a second hanging rod bearing 448. The first hanging rod bearing 408 is installed on the second non-woven fabric hanging rod frame 409, and the second hanging rod bearing 448 is installed on the first non-woven fabric hanging rod frame 401. The first non-woven fabric hanging rod frame 401 is connected to the first side plate 403 by bolts, and the second non-woven fabric hanging rod frame 409 is connected to the second side plate 411 by bolts to complete the installation of the non-woven fabric 428.

[0041] The first recovery rod bearing 421, the first ratchet sleeve 420, the first ratchet 419, and the first driven wheel 418 are nested on the first recovery rod flange 422. The flange end face is equipped with a first driven wheel pressing plate 417 by bolts. The second recovery rod bearing 436, the second ratchet sleeve 437, the second ratchet 438, and the second driven wheel 440 are nested on the second recovery rod flange 433. The flange end face is equipped with a second driven wheel pressing plate 439 by bolts. The first recovery rod bearing 421 and the second recovery rod bearing 436 are respectively installed on the bearing holes of the first recovery rod hanging rod frame 424 and the second recovery rod hanging rod frame 434. The inside of the first recovery rod flange 422 and the second recovery rod flange 433 is provided with a recovery rod 427. The recovery rod pressing cloth piece 425 can fix the non-woven fabric 428 on the recovery rod 427. The first recovery rod pressing plate fixing block 415 and the second recovery rod pressing plate fixing block 431 are respectively connected to the threaded holes on the flanges 422 and 433 at both ends of the pressing cloth piece 425 to fix the recovery rod pressing cloth piece 425 and the recovery rod 427, forming a non-woven fabric recovery structure.

[0042] The sponge bin 430 is connected to the first cabin support pipe 405 through an L-shaped small angle code 402 and a flat angle code 449, and the internal sponge 441 is fixed by friction and extrusion. The first non-woven fabric support rod 432 and the second non-woven fabric support rod 442 are installed in the middle of the recovery rod hanging rod frames 424 and 434, and are distributed on both sides of the sponge bin 430 to support the non-woven fabric 428 at the bottom.

[0043] The first recovery motor 410 is connected to the second side plate 411 by bolts, and the second recovery motor 443 is connected to the first side plate 403 by bolts. The first motor flange 412 and the second motor flange 447 are respectively installed on the output shafts of the recovery motors 410 and 443, and are respectively nested with a first driving pulley 413 and a first driving wheel pressing plate 414, and a second driving pulley 446 and a second driving wheel pressing plate 445. The first synchronous belt 416 is wound around the outside of the first driving pulley 413 and the first driven wheel 418, and the second synchronous belt 444 is wound around the outside of the second driven wheel 440 and the second driving pulley 446.

[0044] The first pawl 423 is installed on the first recovery rod hanging rod frame 424, and the second pawl 435 is installed on the second recovery rod hanging rod frame 434 to prevent the recovered non-woven fabric 428 from slipping.

[0045] The coating liquid is mainly obtained from the water pump 317 by the first main liquid supply pipeline 406 and the second main liquid supply pipeline 407, and is supplied to the sponge 441 in the sponge bin 430 through the first sub-liquid supply pipeline 426 and the second sub-liquid supply pipeline 429.

[0046] Embodiment 2: Based on Embodiment 1, Embodiment 2 of the present application provides a more specific automatic coating device for photovoltaic modules, including: a first traveling mechanism 1, a second traveling mechanism 5, a main frame 2, a crawling mechanism 3, and a surface treatment mechanism for photovoltaic modules; the photovoltaic module treatment mechanism is a coating mechanism 4; Among them, the first traveling mechanism 1 and the second traveling mechanism 5 are used to move horizontally along the surface of the photovoltaic module; the main frame 2 is connected to the first traveling mechanism 1 and the second traveling mechanism 5; the crawling mechanism 3 is installed on the main frame 2, and the crawling mechanism 3 is used to move longitudinally along the main frame 2; the coating mechanism 4 is connected to the crawling mechanism 3 and includes a liquid supply system, a sponge 441, a non-woven fabric recycling structure, and a lifting device, and is used to spray the coating liquid on the surface of the photovoltaic module.

[0047] In addition, the automatic coating device for photovoltaic modules further includes a spraying control system, and the spraying control system is used to control the movement of the first traveling mechanism 1 and the second traveling mechanism 5, the movement of the crawling mechanism 3, the spraying parameters of the coating mechanism 4, and the recycling of the non-woven fabric.

[0048] Specifically, as Figure 11As shown in the figure, in this embodiment, ESP32 is used as the controller. ESP32 is a highly integrated low-power system-on-chip (SoC), which is particularly suitable for various Internet of Things (IoT) applications, including smart homes, smart cities, industrial IoT, and healthcare, etc., providing the possibility of intelligent management and remote control for various application scenarios. In this implementation, three ESP32 controllers are used, and the three controllers are connected via WIFI. Among them, the main controller is located at the lower end, receives the signals from the photoelectric sensors, and drives the motor to control the left and right movement of the first walking mechanism 1; receives the operating states of the remote controller and the coating controller, and sends control instructions to the remote controller and the coating controller to control the coating process of the entire system. The remote controller is located at the upper end, receives the signals from the photoelectric sensors, and drives the motor to control the left and right movement of the second walking mechanism 5. The coating controller controls the first linear motor 303 and the second linear motor 325 to drive the coating mechanism to move closer to or away from the photovoltaic module; controls the crawling motor 318 via the CAN bus to enable the coating mechanism 4 to move up and down along the main frame 2; controls the first recycling motor 410 and the second recycling motor 443 via the CAN bus to realize the recycling work of the non-woven fabric recycling device; controls the electric water pump 317 to replenish the coating liquid to the sponge bin 430; collects the touch switch signals to detect whether the coating mechanism reaches the upper or lower part of the photovoltaic module.

[0049] The system is built-in with Wi-Fi and Bluetooth functions, supporting the IEEE 802.11 b / g / n Wi-Fi standard (operating in the 2.4 GHz frequency band) and Bluetooth 4.2 (including BR / EDR and BLE), enabling ESP32 to easily connect to the wireless local area network for Internet access, local area network communication, and remote control, and also to communicate with various Bluetooth devices. When the system is in the non-coating operating state, it works in the deep sleep mode, in which all non-essential circuits are turned off to operate with minimized power consumption. In addition, both the Wi-Fi module and the Bluetooth module support power consumption optimization functions, which can limit the power consumption during data transmission, thereby extending the battery life. ESP32 also has a low-power RTC module that can continue to operate when the chip enters the deep sleep mode, used to provide timestamps or perform time-related tasks.

[0050] It should be noted that the same or similar parts in this embodiment and Embodiment 1 can be referred to each other and will not be elaborated in this application.

[0051] Embodiment 3: Based on Embodiment 2, Embodiment 3 of this application provides another device including: a first walking mechanism 1, a second walking mechanism 5, a main frame 2, a crawling mechanism 3, and a photovoltaic module surface treatment mechanism; the photovoltaic module treatment mechanism is a cleaning mechanism 6.

[0052] In this embodiment, the smearing mechanism 4 is removed and replaced with a cleaning mechanism 6. The control system can select different working modes according to different functional modules carried. Different functional modules can be replaced without modifying the first traveling mechanism 1, the second traveling mechanism 5, the main frame 2, and the crawling mechanism 3 to achieve different functions.

[0053] Specifically, as Figure 12 and Figure 13 shown, the cleaning mechanism 6 includes: a first cleaning brush 601, a second cleaning brush 618, a first spray head 602, a second spray head 605, a third spray head 607, a fourth spray head 608, a first spray head bracket 603, a second spray head bracket 606, a third spray head bracket 609, a fourth spray head bracket 617, a first water supply pipe 604, a second water supply pipe 616, a waterproof plate 610, a first side plate 611, a second side plate 624, a first brush bearing 612, a second brush bearing 625, a first driven pulley 613, a second driven pulley 626, a first driving pulley 614, a second driving pulley 623, a first cleaning motor 615, a second cleaning motor 622, a first brush connecting piece 619, a second brush connecting piece 620, and a second cabin support pipe 621.

[0054] The connection relationships of the components in the cleaning mechanism 6 are as follows: The first side plate 611 and the second side plate 624 are connected to both ends of the second cabin support pipe 621 by bolts. A waterproof plate 610 is covered above them for waterproofing.

[0055] The first brush bearing 612 is installed in the bearing hole of the first side plate 611, and the second brush bearing 625 is installed in the bearing hole of the second side plate 624.

[0056] The first cleaning brush 601 and the second cleaning brush 618 are connected together through the first brush connecting piece 619 and the second brush connecting piece 620 in the middle, and pass through the holes of the second brush bearing 625 and the first brush bearing 612 at both ends and are connected to the second driven pulley 626 and the first driven pulley 613 outside the bearings.

[0057] The second cleaning motor 622 is fixedly connected to the second side plate 624, and the second driving pulley 623 is connected to its outside; the first cleaning motor 615 is fixedly connected to the first side plate 611, and the first driving pulley 614 is connected to the outside of the first cleaning motor 615. The power of the second driving pulley 623 can be transmitted to the second driven pulley 626 through a synchronous belt, and the power of the first driving pulley 614 can be transmitted to the first driven pulley 613 to realize the rotation of the brush.

[0058] The first nozzle 602, the second nozzle 605, the third nozzle 607, and the fourth nozzle 608 are respectively connected to the second cabin support pipe 621 through the first nozzle bracket 603, the second nozzle bracket 606, the third nozzle bracket 609, and the fourth nozzle bracket 617 to provide water source for the cleaning work.

[0059] The first water supply pipe 604 and the second water supply pipe 616 are connected to the water pump 317 of the crawling mechanism to transport water to the nozzles.

[0060] The second cabin support pipe 621 is connected to the second cabin connector 355, the first linear motor 303, the second linear motor 325, and the first cabin connector 328, and can adjust the height in the vertical direction through the drive of the first linear motor 303 and the second linear motor 325.

[0061] It should be noted that the same or similar parts in this embodiment and Embodiment 1 can be referred to each other and will not be elaborated in this application.

[0062] Embodiment 4: Based on Embodiment 2, Embodiment 4 of the present application provides a coating method for the automatic wiping and coating device of photovoltaic modules. When the photovoltaic module processing mechanism is the coating mechanism 4, as Figure 10 shown, the method includes the following steps: Step 1: Position the automatic wiping and coating device of photovoltaic modules on the surface of the photovoltaic module, and move to the area to be coated on the surface of the photovoltaic module through the first walking mechanism 1 and the second walking mechanism 5; Step 2: Control the crawling mechanism 3 to move along the main frame 2, and at the same time, the liquid supply system is turned on to inject the coating liquid into the sponge bin 430 to soak the sponge 441 with the coating liquid; Step 3: Adjust the height of the coating mechanism 4 through the lifting device and perform wiping at a preset pressure and speed; Step 4: After completing a single wiping, the crawling mechanism pauses and the liquid supply system is turned off; move to the next coating area on the surface of the photovoltaic module through the first walking mechanism 1 and the second walking mechanism 5, and the non-woven fabric recycling structure recycles the soiled non-woven fabric 428 and covers the clean non-woven fabric 428 on the surface of the sponge 441; Step 5: Repeat steps 2-4 to make the moving path of the automatic wiping and coating device of photovoltaic modules cover the surface of the photovoltaic module until the automatic wiping and coating device of photovoltaic modules moves to the edge of the photovoltaic module.

[0063] In step 5, the main frame 2 moves left and right along the surface of the photovoltaic module through the first walking mechanism 1 and the second walking mechanism 5. The moving direction of the coating mechanism 3 is orthogonal to the moving direction of the first walking mechanism 1 and the second walking mechanism 5, and the coating mechanism 4 completes the wiping operation in a zigzag shape on the surface of the photovoltaic module.

[0064] In addition, the coating device can also perform semi-automatic remote control spraying. Through the wireless communication and remote control module connected to the control mechanism, the system can be controlled to execute relevant operations through a wireless remote control device. The specific steps are as follows: Configure the system working mode as the semi-automatic working mode, and then the system waits to receive instructions from the remote control device. After receiving the instructions, corresponding operations are executed.

[0065] Specifically, the system provided in this embodiment is the method corresponding to the device provided in Embodiment 2. Therefore, for the parts that are the same or similar in this embodiment and Embodiment 2, reference can be made to each other and will not be elaborated in this application.

[0066] Embodiment 5: Based on Embodiment 3, Embodiment 5 of the present application provides a working method for the automatic cleaning device of photovoltaic modules. When the photovoltaic module processing mechanism is the cleaning mechanism 6, as Figure 14 shown, the method includes the following steps: Step 1: Position the automatic cleaning device of photovoltaic modules on the surface of the photovoltaic module, and move it to the area to be cleaned on the surface of the photovoltaic module through the first traveling mechanism 1 and the second traveling mechanism 5; Step 2: Control the crawling mechanism 3 to move along the main frame 2. At the same time, turn on the water pump 317, inject water into the water supply pipeline, and spray it onto the first cleaning brush roller 601 and the second cleaning brush roller 618; Step 3: Adjust the height of the cleaning mechanism 6 through the lifting device and perform cleaning at a preset speed; Step 4: After completing a single cleaning, pause the operation of the crawling mechanism and turn off the water pump 317; move to the next cleaning area on the surface of the photovoltaic module through the traveling mechanisms 1 and 5; Step 5: Repeat Steps 2-4 to make the moving path of the automatic cleaning device of photovoltaic modules cover the surface of the photovoltaic module until the automatic cleaning device of photovoltaic modules moves to the edge of the photovoltaic module.

[0067] In Step 5, the main frame 2 moves left and right along the surface of the photovoltaic module through the first traveling mechanism 1 and the second traveling mechanism 5. The moving direction of the cleaning mechanism 6 is orthogonal to the moving direction of the first traveling mechanism 1 and the second traveling mechanism 5, and the cleaning mechanism 6 completes the cleaning operation in a zigzag shape on the surface of the photovoltaic module.

[0068] In addition, the cleaning device can also perform semi-automatic remote control cleaning. Through the wireless communication and remote control module connected to the control mechanism, the system can be controlled to execute relevant operations through a wireless remote control device. The specific steps are as follows: Configure the system working mode as the semi-automatic working mode, and then the system waits to receive instructions from the remote control device. After receiving the instructions, corresponding operations are executed.

[0069] Specifically, the system provided in this embodiment corresponds to the method of the device provided in Embodiment 3. Therefore, for the parts that are the same or similar in this embodiment and Embodiment 3, reference can be made to each other and will not be elaborated in this application.

Claims

1. A photovoltaic module automatic coating device, characterized in that: The photovoltaic module automatic coating device is installed on the photovoltaic module, comprising: a first walking mechanism (1), a second walking mechanism (5), a main frame (2), a crawling mechanism (3) and a photovoltaic module surface treatment mechanism; the photovoltaic module treatment mechanism is a coating mechanism (4) or a cleaning mechanism (6); The first walking mechanism (1) and the second walking mechanism (5) are used for moving laterally along the surface of the photovoltaic module; the main frame (2) is connected to the first walking mechanism (1) and the second walking mechanism (5); the crawling mechanism (3) is installed on the main frame (2), and the crawling mechanism (3) is used for moving longitudinally along the main frame (2); the coating mechanism (4) is connected to the crawling mechanism (3), comprises a liquid supply system, a sponge (441), a non-woven fabric recovery structure and a lifting device, and is used for spraying coating liquid onto the surface of the photovoltaic module.

2. The photovoltaic module automatic coating device according to claim 1 is characterized in that: The photovoltaic module automatic coating device also includes a spraying control system, which is used to control the movement of the first walking mechanism (1) and the second walking mechanism (5), the movement of the crawling mechanism (3), the spraying parameters of the coating mechanism (4), and the recovery of the non-woven fabric.

3. The photovoltaic module automatic coating device according to claim 2 is characterized in that: The crawling mechanism (3) is provided with a water pump (317), and the liquid supply system comprises a liquid supply main pipeline and a liquid supply branch pipeline; the water pump (3) supplies the coating liquid to the coating mechanism (4) or provides a water source to the cleaning mechanism (6) through the liquid supply main pipeline; the coating mechanism (4) supplies the coating liquid to the sponge (441) through the liquid supply branch pipeline; and the sponge (441) is in contact with the surface of the photovoltaic module.

4. The photovoltaic module automatic coating device according to claim 3 is characterized in that: The non-woven fabric recycling structure includes a recycling rod bearing, a ratchet shaft sleeve, a ratchet, a driven wheel, a recycling rod flange, a driven wheel pressure plate, a recycling rod hanging rod frame, a recycling rod, a recycling rod cloth pressing member and a recycling rod cloth pressing member; Among them, the recovery rod bearing, ratchet sleeve, ratchet and driven wheel are nested in the recovery rod flange, and the end face of the recovery rod flange is equipped with a driven wheel pressure plate through bolts; the recovery rod bearing is installed on the bearing hole of the recovery rod hanging rod frame, and there is a recovery rod on the inner side of the recovery rod flange; the recovery rod cloth pressing piece fixes the non-woven fabric on the recovery rod; the recovery rod pressure plate fixing block is connected to the threaded holes on the recovery rod flange at both ends of the recovery rod cloth pressing piece.

5. The photovoltaic module automatic coating device according to claim 4 is characterized in that: The non-woven fabric recycling structure also includes a ratchet, which is installed on the recycling rod hanging rod frame and is used to prevent the recycled non-woven fabric from sliding off.

6. The photovoltaic module automatic coating device according to claim 5 is characterized in that: The spray control system comprises a main controller, a remote controller and a coating controller which are communicatively connected; the main controller is used to control the movement of the first walking mechanism (1) and send control instructions to the remote controller and the coating controller; the remote controller is used to control the movement of the second walking mechanism (5); the coating controller controls the motor to drive the coating mechanism (4) to move in a direction close to or away from the photovoltaic module.

7. A coating method of the photovoltaic module automatic coating device according to any one of claims 1 to 6, characterized in that: When the photovoltaic module processing mechanism is a coating mechanism (4), the method comprises the following steps: Step 1: Position the photovoltaic module automatic coating device on the surface of the photovoltaic module, and move it to the area to be coated on the surface of the photovoltaic module through the first walking mechanism (1) and the second walking mechanism (5); Step 2, controlling the crawling mechanism (3) to move along the main frame (2), while the liquid supply system is turned on to inject the coating liquid into the sponge bin (430), so that the coating liquid soaks the sponge (441); Step 3, adjusting the height of the coating mechanism (4) by means of a lifting device, and coating at a preset pressure and speed; Step 4: After a single coating is completed, the crawling mechanism is suspended and the liquid supply system is closed; the first walking mechanism (1) and the second walking mechanism (5) are used to move to the next coating area on the surface of the photovoltaic module; the non-woven fabric recovery structure recovers the dirty non-woven fabric (428) and covers the clean non-woven fabric (428) on the surface of the sponge (441); Step 5, repeat steps 2-4, so that the moving path of the photovoltaic module automatic coating device covers the surface of the photovoltaic module, until the photovoltaic module automatic coating device moves to the edge of the photovoltaic module.

8. The working method of the photovoltaic module automatic coating device according to claim 7 is characterized in that: In step 5, the main frame (2) moves left and right along the surface of the photovoltaic module through the first walking mechanism (1) and the second walking mechanism (5), the moving direction of the coating mechanism (4) is orthogonal to the moving directions of the first walking mechanism (1) and the second walking mechanism (5), and the coating mechanism (4) completes the coating operation in a "J" shape on the surface of the photovoltaic module.

Images