A cleaning and drying equipment for solar cell production

Abstract

This invention belongs to the field of solar cell processing technology, specifically relating to a cleaning and drying equipment for solar cell production. This equipment includes a workbench equipped with a drying device, a cleaning component, a lifting assembly, a collecting device, and a conveying component. It also includes a rotating component, which comprises a support plate with placement holes for placing solar cells. One end of the support plate is connected to a rotatable shaft. A set of support rods is provided above and below the support plate to support the solar cells placed in the placement holes. This cleaning and drying equipment enables the solar cells to be flipped and cleaned without contact, improving the cleaning effect and work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of solar cell processing technology, and specifically relates to a cleaning and drying equipment for solar cell production. Background Technology

[0002] Solar cells are generally classified into monocrystalline silicon, polycrystalline silicon, and amorphous silicon. Monocrystalline silicon solar cells are currently the fastest-developing type of solar cell. Their structure and manufacturing process are well-established, and the products are widely used in space and on the ground. These solar cells use high-purity monocrystalline silicon rods as raw materials. To reduce production costs, solar-grade monocrystalline silicon rods are now used in ground-based solar cells, with relaxed material performance requirements. Some solar cells can also utilize the leftover materials from semiconductor device processing and waste monocrystalline silicon materials, which are then re-drawn into monocrystalline silicon rods specifically for solar cells.

[0003] For example, patent CN107039562B discloses a solar cell processing and cleaning equipment, including a base plate, a left frame, a moving device, a moving rod, a first hose, a first single-control valve, a nozzle, a liquid delivery device, a top plate, a fixing device, and a second hose. The left frame is welded to the top left side of the base plate, and the moving device is located on the upper right side of the left frame. A moving rod is connected to the right side of the moving device, and a nozzle is welded to the right end of the moving rod. The top plate is welded to the top of the left frame. This invention controls the operation of the delivery device to ensure that the cleaning liquid is evenly sprayed onto the solar cells, while also recovering and reusing the cleaning liquid, making the equipment more environmentally friendly.

[0004] However, the above-mentioned device still has the following problems in use: First, when fixing the solar panels during cleaning, it is still necessary to manually move and fix the solar panels, which affects the cleaning efficiency. Second, during cleaning, it cannot sweep away the stains on the solar panels, resulting in stains remaining on the solar panels after cleaning, which affects the cleaning effect.

[0005] To address the aforementioned technical problems, invention patent CN110491810B provides a solar cell processing and cleaning device, including a workbench, a cleaning component, a fixing component, and a drying component. The cleaning component includes a cleaning element, a mixing element, a cleaning element, and a collecting element. The cleaning element is positioned on top of the fixing component, the mixing element is positioned beside the workbench, the cleaning element is positioned on top of the workbench, and the collecting element is positioned below the workbench. The drying component includes a moving element and a drying device, with the drying device positioned on top of the workbench and the moving element positioned on top of the workbench. This invention, by setting up the fixing component and the cleaning component, can automatically fix the solar panels, improving cleaning efficiency. The moving plate moves, driving the cleaning plate to move, and the moving cleaning plate drives the cleaning brush to clean the residue on the solar panels. After cleaning, it is beneficial to clean the residue on the solar panels, ensuring the cleanliness of the solar panels.

[0006] However, although the above-mentioned device can fix the battery cells and clean the cleaned battery cells, it cannot clean and dry the other side of the battery cells. To clean the other side of the battery cells, the battery cells must be turned over manually, but manually turning them over will contaminate the battery cells, resulting in poor cleaning quality and low work efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a simple and reasonably designed cleaning and drying device for solar cell production in order to solve the above-mentioned problems.

[0008] The present invention achieves the above objectives through the following technical solutions:

[0009] A cleaning and drying device for solar cell production includes a workbench. The workbench is equipped with a drying device, a cleaning component, a lifting assembly, a collecting device, and a conveying component. It also includes a rotating component, which includes a support plate with placement holes for placing solar cells. One end of the support plate is connected to a rotatable shaft. A set of support rods is provided above and below the support plate, and both sets of support rods are tightly fitted to the support plate. The support rods support the solar cells placed in the placement holes. The two sets of support rods are connected to two sets of push rods via connecting rods. Both sets of push rods can move axially along the rotating shaft and rotate synchronously with the rotating shaft.

[0010] Furthermore, the rotating shaft passes through the turntable and is fixedly connected to the turntable. The turntable is rotatably connected to the first fixed plate. The two sets of push rods pass through the turntable through two sets of limiting holes and are slidably connected to the turntable. The ends of the two sets of push rods away from the turntable are connected to movable seats. The two sets of movable seats are connected to the turntable through a first spring. The ends of the two sets of movable seats away from the turntable are rotatably equipped with rollers. The two sets of rollers are in contact with the curved surface of the cam. The cam is fixedly mounted on the second fixed plate. The rotating shaft is coaxial with the cam and passes through the second fixed plate and is rotatably connected to the second fixed plate. The rotating shaft is connected to the output end of the motor, and the motor is used to drive the rotating shaft to rotate.

[0011] Furthermore, the drying device includes a drying chamber, a drying fan is provided on the top of the drying chamber, and a conveying port is provided on both the side of the drying chamber near the rotating component and the side away from the rotating component. The conveying component passes through the conveying port to transport the battery cells into the drying chamber for drying.

[0012] Furthermore, the collection device includes a water tank disposed below the support plate, and the water tank is connected to the collection box via a drain pipe. The collection device is used to collect waste liquid.

[0013] Furthermore, the lifting assembly includes a first telescopic rod that passes through the water tank. A baffle is provided inside the water tank to prevent wastewater in the water tank from contacting the first telescopic rod. A support frame is connected to the output end of the first telescopic rod, and the support frame is used to support the conveying component.

[0014] Furthermore, the cleaning component includes a fixed base, which is connected to the water spraying platform via a second telescopic rod. The water spraying platform has a water outlet on the side near the support plate, and brushes are detachably installed on both sides of the water outlet.

[0015] Furthermore, the conveying component includes a first support frame for supporting the first conveying component, the first conveying component including a first conveyor belt.

[0016] Furthermore, the conveying component also includes a second conveying component and a second support frame, the second support frame being used to support the second conveying component, the second conveying component including a second conveyor belt, and a flipping assembly being provided between the first conveying component and the second conveying component.

[0017] Furthermore, the flipping assembly includes a flipping plate and a limiting frame, which are rotatably connected. The flipping plate is V-shaped, and a groove is provided on one side of the flipping plate. A sliding plate is slidably connected in the groove. The sliding plate is connected to the worktable surface through a second spring. It also includes an eccentric wheel, which is connected to a drive mechanism through a rotating shaft. The second support frame is set lower than the first support frame.

[0018] Furthermore, both the first conveyor belt and the second conveyor belt are hollowed out.

[0019] The beneficial effects of this invention are as follows: By providing support rods on both the top and bottom of the support plate, and having the support rods move axially along the rotation axis and rotate synchronously with the support plate, this invention enables the battery cells to be flipped and cleaned without contacting them. The battery cells are placed in the placement holes, which provides excellent limiting during cleaning and prevents the battery cells from sliding. Furthermore, there are no clamping devices or obstructions above the battery cells during cleaning, allowing for thorough cleaning of the battery cell surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotating component of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the cleaning component of the present invention;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This is a cross-sectional view of the present invention;

[0025] Figure 6 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0026] In the diagram: 1. Workbench; 2. Drying device; 201. Drying box; 202. Drying fan; 203. Conveying port; 3. Rotating component; 301. Bearing plate; 3011. Placement hole; 302. Rotating shaft; 303. First fixed plate; 3031. Turntable; 3032. Limiting hole; 304. Second fixed plate; 305. Push rod; 3051. Connecting rod; 3052. Support rod; 306. Moving seat; 307. Roller; 308. First spring; 309. Cam; 310. Motor; 4. Lifting assembly; 401. Support frame; 402. First telescopic rod; 403. Conveying component; 5. Cleaning component; 501. 503. Fixed base; 504. Second telescopic rod; 505. Sprayer platform; 506. Brush; 507. Water outlet; 608. Collection device; 609. Water tank; 6000. Drain pipe; 601. Collection box; 602. Baffle; 701. Conveying component; 702. First conveying component; 7011. First support frame; 7012. First conveyor belt; 702. Second conveying component; 7021. Second support frame; 7022. Second conveyor belt; 703. Tilting assembly; 7031. Tilting plate; 7032. Limiting frame; 7033. Slide groove; 7034. Slide plate; 7035. Second spring; 7036. Eccentric wheel; 7037. Rotating shaft. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] like Figure 1 , Figure 2As shown, a cleaning and drying equipment for solar cell production includes a workbench 1, on which a drying device 2, a lifting assembly 4, a cleaning component 5, a collecting device 6, and a conveying component 7 are arranged. It also includes a rotating component 3, which includes a support plate 301. The support plate 301 has a placement hole 3011 for placing solar cells. One end of the support plate 301 is connected to a rotatable rotating shaft 302. A set of support rods 3052 are arranged on both the upper and lower parts of the support plate 301. Both sets of support rods 3052 are in close contact with the support plate. The support rods 3052 are used to support the solar cells placed in the placement hole 3011. The two sets of support rods 3052 are respectively connected to two sets of push rods 305 through connecting rods 3051. Both sets of push rods 305 can move axially along the rotating shaft 302 and rotate synchronously with the rotating shaft 302.

[0029] Before use, the support plate 301 is in a horizontal position. At this time, the support rod 3052 below the support plate 301 is positioned below the placement hole 3011 to support the battery cells. The support rod 3052 above the support plate 301 is moved to a position close to the rotating shaft 302, ensuring that there are no obstructions above the placement hole 3011. During use, the battery cells are placed on the support rod 3052. The placement hole 3011 limits the movement of the battery cells, preventing them from moving during cleaning. When it is necessary to clean the other side of the battery cells, the rotating shaft 302 is rotated until the other side of the support plate 301 is facing upwards. The support rod 3052 rotates synchronously. The support rod 3052 is moved axially to ensure that the support rod 3052 below the support plate 301 is always below the placement hole 3011, and the support rod 3052 above the support plate 301 is always near the rotating shaft 302, so that there are no obstructions above the placement hole 3011. Then the other side of the battery cell is cleaned, so that both sides of the battery cell can be cleaned without touching the battery cell. At the same time, the battery cell can be limited to prevent it from moving, resulting in a better cleaning effect. The cleaned battery cell is conveyed to the drying device 2 through the conveyor 7 for drying.

[0030] In a specific embodiment, a rotating shaft 302 passes through a turntable 3031 and is fixedly connected to the turntable 3031, and is rotatably connected to the first fixed plate 303. Two sets of push rods 305 pass through the turntable 3031 through two sets of limiting holes 3032 and are slidably connected to the turntable 3031. The ends of the two sets of push rods 305 away from the turntable 3031 are each connected to a movable seat 306, and both sets of movable seats 306 are connected to the turntable 3031 by a first spring 308. Both sets of movable seats 306 have rollers 307 rotatably mounted at the ends away from the turntable 3031. Both sets of rollers 307 are in contact with the curved surface of the cam 309. The cam 309 is fixedly mounted on the second fixed plate 304. The rotating shaft 302 is coaxially mounted with the cam 309 and passes through the second fixed plate 304 and is rotatably connected to the second fixed plate 304. The rotating shaft 302 is connected to the output end of the motor 310, and the motor 310 is used to drive the rotating shaft 302 to rotate.

[0031] It should be noted that the highest and lowest points of the cam 309 surface are on the same vertical line, with the highest point of the surface located at the bottom. The motor 310 drives the rotating shaft 302 to rotate, which in turn drives the turntable 3031 and the support plate 301 to rotate. The turntable 3031 drives two sets of push rods 305 to rotate. At this time, the push rods 305 drive the rollers 307 connected to the movable seat 306 to roll along the surface of the cam 309. As one set of rollers 307 moves from the lowest point of the cam 309 surface to the highest point, the push rods 305 gradually move away from the second fixed plate 304, causing the support rod 3052 to move to the placement position. Below the hole 3011, the battery cell inside the hole 3011 is supported. As another set of rollers 307 moves from the highest point of the curved surface of the cam 309 to the lowest point of the curved surface of the cam 309, the push rod 305 gradually moves towards the side closer to the second fixed plate 304 under the action of the first spring 308, so that the support rod 3052 moves away from the placement hole 3011. When it is necessary to clean the other side of the battery cell, the motor 310 is started, so that the rotating shaft 302 rotates 180°, which can realize the flipping and cleaning of the battery cell. During the rotation of the support plate 301, the two sets of support rods 3052 can clamp the battery cell to prevent the battery cell from slipping.

[0032] In a specific embodiment, the drying device 2 includes a drying box 201, a drying fan 202 is provided on the top of the drying box 201, and a conveying port 203 is provided on both the side of the drying box 201 near the rotating part 3 and the side away from the rotating part 3. The conveying part 7 passes through the conveying port 203 to convey the battery cells into the drying box 201 for drying.

[0033] In a specific embodiment, the collection device 6 includes a water tank 601, which is disposed below the support plate 301. The water tank 601 is connected to the collection box 603 through a drain pipe 602. The collection device 6 is used to collect waste liquid.

[0034] In a specific embodiment, the lifting assembly 4 includes a first telescopic rod 402 that passes through a water tank 601. A baffle 604 is provided inside the water tank 601 to prevent wastewater in the water tank 601 from contacting the first telescopic rod 402. A support frame 401 is connected to the output end of the first telescopic rod 402. The support frame 401 is used to support the conveyor 403.

[0035] It should be noted that the size of the conveyor 403 is smaller than the size of the placement hole 3011, so that the conveyor 403 can pass through the placement hole 3011 under the action of the first telescopic rod 402, and then lift the battery cell. The conveyor 403 can be in the form of a conveyor belt. After the conveyor 403 lifts the battery cell, the conveyor 403 is started to transport the battery cell to the conveyor 7 (the input end of the conveyor 7 is set close to the output end of the conveyor 403). Then the conveyor 7 transports the battery cell into the drying chamber 201 for drying.

[0036] In specific implementation methods, such as Figure 3 As shown, the cleaning component 5 includes a fixed base 501, which is connected to the water spraying platform 504 via a second telescopic rod 503. The water spraying platform 504 has a water outlet 506 on the side near the support plate 301, and brushes 505 are detachably installed on both sides of the water outlet 506.

[0037] It should be noted that the water spraying platform 504 is connected to the mixing tank via a water pipe (this is prior art and will not be described in detail here). Under the action of the second telescopic rod 503, the water spraying platform 504 moves above the battery cell. At the same time, the cleaning fluid is sprayed onto the battery cell from the outlet 506. While spraying water, the brush 505 brushes away the water stains on the battery cell, thereby completing the cleaning and removal of stains from the battery cell.

[0038] In specific implementations, such as Figure 4 As shown, the conveying component 7 includes a first support frame 7011, which supports the first conveying component 701. The first conveying component 701 includes a first conveyor belt 7012.

[0039] In use, the conveyor 403 lifts the battery cell so that it is removed from the placement hole 3011. Then, the conveyor 403 transports the battery cell towards the first conveyor 701. Finally, the battery cell is transported to the drying chamber 201 through the first conveyor 701 for drying.

[0040] In specific implementation methods, such as Figure 5As shown, the conveyor 7 also includes a second conveyor 702 and a second support frame 7021. The second support frame 7021 is used to support the second conveyor 702. The second conveyor 702 includes a second conveyor belt 7022. A flipping assembly 703 is provided between the first conveyor 701 and the second conveyor 702.

[0041] In use, the battery cells are conveyed into the drying chamber 201 by the first conveyor 701. The drying fan 202 at the top of the drying chamber 201 dries the upper surface of the battery cells. Then, the battery cells are flipped by the flipping component 703 so that the other side of the battery cells faces up. The other side of the battery cells is then dried by the drying fan 202. Finally, the battery cells are conveyed out of the drying chamber 201 by the second conveyor 702.

[0042] In specific implementations, such as Figure 6 As shown, the flipping assembly 703 includes a flipping plate 7031 and a limiting frame 7032, which are rotatably connected. The flipping plate 7031 is V-shaped, and a groove 7033 is provided on one side of the flipping plate 7031. A slide plate 7034 is slidably connected in the groove 7033. The slide plate 7034 is connected to the surface of the worktable 1 through a second spring 7035. It also includes an eccentric wheel 7036, which is connected to a drive mechanism through a rotating shaft 7037. The second support frame 7021 is set lower than the first support frame 7011.

[0043] In use, the battery cells on the first conveyor 701 are conveyed to the flipping plate 7031. At this time, the protrusion of the eccentric wheel 7036 pushes the flipping plate 7031 so that the flipping plate 7031 receives the battery cells. Then the eccentric wheel 7036 continues to rotate. At this time, the protrusion of the eccentric wheel 7036 moves away from the flipping plate 7031. The other side of the flipping plate 7031 rotates clockwise under the action of the second spring 7035, rotating the battery cells onto the second conveyor 702. Then, the battery cells are conveyed by the second conveyor belt 7022. The other side of the battery cells is dried on the second conveyor belt 7022, thereby realizing the drying operation of the other side of the battery cells.

[0044] In a specific embodiment, both the first conveyor belt 7012 and the second conveyor belt 7022 are hollowed out.

[0045] It should be noted that by hollowing out both the first conveyor belt 7012 and the second conveyor belt 7022, the drying efficiency of the battery cells can be improved.

[0046] In use, the battery cell is placed in the placement hole 3011. The support rod 3052 below the support plate 301 supports the battery cell. Then, the second telescopic rod 503 is activated, causing the water spray table 504 to move back and forth on the surface of the battery cell. At the same time, the water outlet 506 sprays out cleaning fluid, and the brush 505 next to the water outlet 506 brushes away the water stains on the surface of the battery cell. After one side of the battery cell is cleaned, the motor 301 is started, and the rotating shaft 302 is rotated until the other side of the support plate 301 is facing upwards. The support rod 3052 rotates synchronously and moves axially to ensure that the support rod 3052 below the support plate 301 is always below the placement hole 3011, and the support rod 3052 above the support plate 301 is always near the end close to the rotating shaft 302. With no obstructions above the placement hole 3011, the other side of the battery cell is cleaned following the steps described above. Waste liquid generated during the cleaning process flows into the water tank 601 and then into the collection box 603 through the drain pipe 602 for centralized treatment. After both sides of the battery cell are cleaned, the first telescopic rod is activated, allowing the conveyor 403 to pass through the placement hole 3011, lift the battery cell, and then convey it to the first conveyor 701, which then transports it into the drying chamber 201. The drying fan 202 at the top of the drying chamber 201 dries the upper surface of the battery cell. Then, the battery cell is flipped using the flipping assembly 703 so that the other side of the battery cell faces upward. The other side of the battery cell is then dried using the drying fan 202, and finally, it is conveyed out of the drying chamber 201 by the second conveyor 702.

[0047] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A cleaning and drying device for solar cell production, comprising a workbench, characterized in that, The workbench is equipped with a drying device, a cleaning component, a lifting assembly, a collecting device, and a conveying component. It also includes a rotating component, which comprises a support plate with placement holes for placing battery cells. One end of the support plate is connected to a rotatable shaft. A set of support rods is provided above and below the support plate, both sets of which are tightly fitted to the support plate. These support rods support the battery cells placed in the placement holes. The two sets of support rods are connected to two sets of push rods via connecting rods. Both sets of push rods can move axially along the rotating shaft and rotate synchronously with it. The rotating shaft passes through a turntable and is fixed to the turntable. The turntable is rotatably connected to the first fixed plate. Two sets of push rods pass through the turntable through two sets of limiting holes and are slidably connected to the turntable. The ends of the two sets of push rods away from the turntable are connected to movable seats. The two sets of movable seats are connected to the turntable through a first spring. Rollers are rotatably provided at the ends of the two sets of movable seats away from the turntable. The two sets of rollers are in contact with the curved surface of the cam. The cam is fixedly mounted on the second fixed plate. The rotating shaft is coaxial with the cam and passes through the second fixed plate and is rotatably connected to the second fixed plate. The rotating shaft is connected to the output end of the motor, and the motor is used to drive the rotating shaft to rotate. The collection device includes a water tank located below the support plate. The water tank is connected to a collection box via a drain pipe. The collection device is used to collect waste liquid. The lifting assembly includes a first telescopic rod that passes through the water tank. A baffle is provided inside the water tank to prevent wastewater in the water tank from contacting the first telescopic rod. A support frame is connected to the output end of the first telescopic rod, and the support frame is used to support the conveyor.

2. The cleaning and drying equipment for solar cell production according to claim 1, characterized in that, The drying device includes a drying chamber with a drying fan on the top. The drying chamber has conveying ports on both the side near the rotating component and the side away from the rotating component. The conveying component passes through the conveying ports to transport the battery cells into the drying chamber for drying.

3. A cleaning and drying apparatus for solar cell production according to any one of claims 1-2, characterized in that, The cleaning component includes a fixed base, which is connected to the water spraying platform via a second telescopic rod. The water spraying platform has a water outlet on the side near the support plate, and brushes are detachably installed on both sides of the water outlet.

4. The cleaning and drying equipment for solar cell production according to claim 1, characterized in that, The conveying component includes a first support frame for supporting the first conveying component, and the first conveying component includes a first conveyor belt.

5. The cleaning and drying equipment for solar cell production according to claim 4, characterized in that, The conveying component further includes a second conveying component and a second support frame. The second support frame is used to support the second conveying component. The second conveying component includes a second conveyor belt. A flipping assembly is provided between the first conveying component and the second conveying component.

6. The cleaning and drying equipment for solar cell production according to claim 5, characterized in that, The flipping assembly includes a flipping plate and a limiting frame, which are rotatably connected. The flipping plate is V-shaped, and a groove is provided on one side of the flipping plate. A sliding plate is slidably connected in the groove. The sliding plate is connected to the worktable surface through a second spring. The assembly also includes an eccentric wheel, which is connected to a drive mechanism through a rotating shaft. The second support frame is set lower than the first support frame.

7. The cleaning and drying equipment for solar cell production according to claim 6, characterized in that, Both the first conveyor belt and the second conveyor belt are hollowed out.

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