Photovoltaic cell edge coating device

Abstract

The utility model relates to the technical field of photovoltaic cells, in particular to a photovoltaic cell edge coating device which comprises a rotating part, a coating part, a detection sensor and a controller, the rotating part can rotate around a rotating axis, the axial direction of the rotating axis is parallel to the first direction, the rotating part is provided with a connecting surface, and the connecting surface is used for connecting and driving the photovoltaic cell to rotate; the coating part is arranged on one side of the rotating part, the coating part can relatively move in the second direction, and the coating part is configured to coat the edges of the photovoltaic cells on the connecting surface when the edges of the photovoltaic cells are in contact with the connecting surface; the detection sensor is used for acquiring the edge position information of the photovoltaic cell on the connecting surface and transmitting a control signal according to the acquired edge position information; the controller is used for receiving a control signal and controlling the coating piece to move so that the coating piece can make contact with the edge of the photovoltaic cell piece located on the connecting face. The photovoltaic cell edge coating device is small in size, high in space utilization rate and capable of achieving coating efficiently.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, in particular to a photovoltaic cell sheet edge coating device. Background Art

[0002] With the development of the new energy industry, solar energy, as a renewable energy source, has the advantages of being universal, harmless, huge, and long-lasting, so it has become an important part of human energy use. Photoelectric conversion is a major way to utilize solar energy. For example, photovoltaic cells can be set up and exposed to sunlight to complete the conversion of light and electricity. Photovoltaic cells, also known as solar cells, include photovoltaic cells. The edges of photovoltaic cells need to be coated with insulating coating materials to achieve electrical insulation.

[0003] When coating, a coating component is required. In the prior art, after the photovoltaic cell is fixed, the coating component is moved around the edge of the photovoltaic cell to achieve the coating of the insulating coating material. Since the coating component needs to be moved, the entire device needs to occupy a large space, and the space utilization rate is low; the coating component needs to be moved significantly, and the coating efficiency is low. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the large size and low coating efficiency of the existing coating device, and provide a photovoltaic cell edge coating device which is small in size and can achieve efficient coating.

[0005] The utility model provides a photovoltaic cell edge coating device, comprising a rotating component, the rotating component can rotate around a rotating axis, the axial direction of the rotating axis is parallel to a first direction, the rotating component has a connecting surface, the connecting surface is used to connect and drive the photovoltaic cell to rotate; a coating member, the coating member is arranged on one side of the rotating component along a second direction, the coating member can move relatively along the second direction, and the coating member is configured to coat the edge of the photovoltaic cell when contacting it on the connecting surface; a detection sensor, the detection sensor is used to obtain the edge position information of the photovoltaic cell on the connecting surface, and transmit a control signal according to the obtained edge position information; a controller, the controller is used to receive the control signal and control the movement of the coating member so that it contacts the edge of the photovoltaic cell on the connecting surface.

[0006] In one embodiment of the utility model, it also includes a transport component, which includes two transport parts arranged opposite to each other, and the two transport parts are respectively arranged on both sides of the rotating part along the second direction, and the transport parts are used to drive the photovoltaic cell to move along the third direction. Along the second direction, the size of the transport component is smaller than the size of the photovoltaic cell.

[0007] In one embodiment of the present invention, a displacement driving component is further included, wherein a driving end of the displacement driving component is connected to the transport component, and the displacement driving component is used to drive the transport component to move relatively along the first direction.

[0008] In one embodiment of the present invention, the transport component comprises a synchronous belt, and a surface of the synchronous belt contacting the photovoltaic cell sheet is provided with a plurality of protrusions.

[0009] In one embodiment of the utility model, the detection sensors are provided in four groups, two of which are relatively arranged on both sides of the rotating component along the second direction, and the other two groups are relatively arranged on both sides of the rotating component along the third direction.

[0010] In one embodiment of the present invention, each group of detection sensors includes a plurality of laser deviation correction sensors.

[0011] In one embodiment of the utility model, it also includes a first mounting seat and a second mounting seat, and the first mounting seat and the second mounting seat are relatively arranged on both sides of the coating member along the first direction. The laser correction sensor includes a laser emitting component and a laser receiving component, the laser generating component is connected to the first mounting seat, and the laser receiving component is connected to the second mounting seat.

[0012] In an embodiment of the present invention, a hollow portion corresponding to the rotating component is formed on the first mounting seat.

[0013] In one embodiment of the present invention, a vacuum hole is provided on the connection surface, and the vacuum hole is configured to be able to absorb the photovoltaic cell sheet located on the connection surface.

[0014] In one embodiment of the present invention, the coating member comprises a coating wheel and a feeding component, the coating wheel is rotatable, a coating groove is provided on the coating wheel, and a feeding end of the feeding component abuts against the coating groove.

[0015] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0016] The photovoltaic cell edge coating device described in the utility model comprises a rotating component, a coating component, a detection sensor and a controller. During the coating process, the coating component does not need to rotate around the photovoltaic cell, and the photovoltaic cell is driven to rotate by the rotating component to achieve coating of its edge, which saves the volume required for the device and improves the space utilization rate. At the same time, by setting the detection sensor and the controller to coordinate and locate the edge of the photovoltaic cell, it is convenient for the coating component to cooperate to achieve accurate and efficient coating, with high production efficiency and good coating effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0018] Figure 1 This is one of the partial structural schematic diagrams of the photovoltaic cell edge coating device in the preferred embodiment of the utility model;

[0019] Figure 2 This is the second partial structural schematic diagram of the photovoltaic cell edge coating device in the preferred embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a photovoltaic cell edge coating device in a preferred embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the transport component in the preferred embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the coating member in the preferred embodiment of the utility model;

[0023] Figure 6 This is one of the schematic diagrams of the photovoltaic cell sheet being coated in the preferred embodiment of the utility model;

[0024] Figure 7 This is the second schematic diagram of the photovoltaic cell being coated in the preferred embodiment of the utility model;

[0025] Figure 8 This is the third schematic diagram of the photovoltaic cell being coated in the preferred embodiment of the utility model.

[0026] Explanation of the markings in the specification: D1, first direction; D2, second direction; D3, third direction; 10, photovoltaic cell; 21, rotating component; 211, connecting surface; 212, vacuum hole; 22, first rotating component; 30, coating component; 31, coating wheel; 311, coating groove; 32, feeding component; 33, second rotating component; 40, laser correction sensor; 41, laser emitting component; 42, laser receiving component; 50, transportation component; 51, transportation component; 511, synchronous belt; 512, raised portion; 60, displacement drive component; 71, first mounting seat; 711, hollow portion; 72, second mounting seat. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0028] Reference Figure 1 and Figure 2 As shown, the utility model discloses a photovoltaic cell sheet 10 edge coating device, including a rotating component 21, a coating member 30, a detection sensor and a controller.

[0029] The rotating component 21 is used to drive the photovoltaic cell 10 to rotate. Specifically, the rotating component 21 can rotate around the rotation axis, and the axial direction of the rotation axis is parallel to the first direction D1. Preferably, the first direction D1 is vertically arranged; the rotation axis of the rotating component 21 is not shown in the figure. Those skilled in the art can set a specific way for the rotating component 21 to rotate according to actual needs, preferably, by setting a first rotating component 22 to drive the rotating component 21 to rotate. Preferably, the first rotating component 22 is set as a motor. The rotating component 21 has a connecting surface 211, and the connecting surface 211 is used to connect and drive the photovoltaic cell 10 to rotate. Preferably, the connecting surface 211 is arranged at the top of the rotating component 21, and the normal of the connecting surface 211 is parallel to the first direction D1. Those skilled in the art can set a way for the connecting surface 211 to drive the photovoltaic cell 10 to rotate according to actual needs, such as using friction, or additionally setting a negative pressure adsorption component.

[0030] The coating member 30 is used to achieve the coating of the insulating coating material on the edge of the photovoltaic cell 10. Those skilled in the art can set the specific coating member 30 according to actual needs. The coating member 30 is arranged on one side of the rotating part 21 along the second direction D2, and the coating member 30 can move relatively along the second direction D2. Preferably, the second direction D2 is parallel to the first direction D1; preferably, the second direction D2 is arranged horizontally. Those skilled in the art can set the movement mode of the coating member 30 according to actual needs, for example, by setting a motor and a screw to achieve the driving of the coating member 30. The coating member 30 is configured to coat the edge of the photovoltaic cell 10 located on the connecting surface 211 when it contacts it, so as to coat the insulating coating material on the photovoltaic cell 10. Preferably, the coating is stopped when the coating member 30 is separated from the edge of the photovoltaic cell 10 on the connecting surface 211.

[0031] The detection sensor is used to obtain the edge position information of the photovoltaic cell 10 located on the connection surface 211, and transmit a control signal according to the obtained edge position information. Those skilled in the art can set specific detection sensors, as well as their quantity, position, etc. according to actual needs. The controller is used to receive the control signal and control the coating member 30 to move along the second direction D2, so that the coating member 30 contacts the edge of the photovoltaic cell 10 located on the connection surface 211 to achieve coating. Preferably, the edge position information in the embodiment refers to the position information of a point on a certain edge of the photovoltaic cell 10.

[0032] When performing the coating operation, the edge position information of the photovoltaic cell 10 located on the connection surface 211 is first obtained by the detection sensor, and a control signal is emitted according to the obtained edge position information. How to obtain the edge position information belongs to the prior art and will not be described in detail. Subsequently, the rotating component 21 drives the photovoltaic cell 10 located on its connection surface 211 to rotate. The controller receives the control signal and controls the movement of the coating member 30 during the rotation of the photovoltaic cell 10, so that the coating member 30 contacts the edge of the photovoltaic cell 10 to achieve coating. After completing the corresponding coating, the rotating component 21 stops rotating, and the coating member 30 is relatively far away from the rotating component 21 to facilitate subsequent operations. The controller is not shown in the accompanying drawings.

[0033] The photovoltaic cell 10 edge coating device described in the utility model comprises a rotating part 21, a coating part 30, a detection sensor and a controller. During the coating process, the coating part 30 does not need to rotate around the photovoltaic cell 10, and the photovoltaic cell 10 is driven to rotate by the rotating part 21 to achieve coating of its edge, which saves the volume required for the device and improves the space utilization. At the same time, by setting the detection sensor and the controller to coordinate and locate the edge of the photovoltaic cell 10, it is convenient for the coating part 30 to cooperate to achieve accurate and efficient coating, with high production efficiency and good coating effect.

[0034] Reference Figure 3 and Figure 4As shown, the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, also includes a transport component 50. The transport component 50 includes two transport components 51 arranged opposite to each other, and the two transport components 51 are respectively arranged on both sides of the rotating component 21 along the second direction D2. The transport component 51 is used to drive the photovoltaic cell 10 to move along the third direction D3. Those skilled in the art can set specific transport components 51 according to actual needs, such as a synchronous belt 511, etc. By setting the transport component 50, the loading and unloading of the photovoltaic cell 10 can be efficiently achieved, and the production efficiency is improved. Considering that the coating member 30 needs to contact the photovoltaic cell 10 to achieve coating during coating, the size of the transport component 50 along the second direction D2 is set to be smaller than the size of the photovoltaic cell 10 along the second direction D2, so that the edge of the photovoltaic cell 10 can extend out of the transport component 50 and contact the coating member 30.

[0035] Further, see Figure 4 As shown, the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, further includes a displacement drive component 60, the driving end of the displacement drive component 60 is connected to the transport component 50, and the displacement drive component 60 is used to drive the transport component 50 to move relatively along the first direction D1. Preferably, the displacement drive component 60 is configured as a cylinder. Preferably, a plurality of displacement drive components 60 are provided. By providing this structure, it is possible to facilitate the separation of the photovoltaic cell 10 from the transport component 51 during coating. Compared with a structure in which the rotating component 21 is configured to be relatively movable along the first direction D1, this structure can also facilitate the positioning between the coating member 30 and the photovoltaic cell 10.

[0036] Further, see Figure 4 As shown, in the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, the transport component 51 includes a synchronous belt 511, and the surface of the synchronous belt 511 contacting the photovoltaic cell 10 is provided with a plurality of protrusions 512. By setting up this structure, the photovoltaic cell 10 can be effectively transported, and at the same time, the insulating coating material coated on the photovoltaic cell 10 can be prevented from contacting other components. Figure 4 In FIG. 5 , only a portion of the raised portion 512 is shown.

[0037] Considering that most photovoltaic cells 10 are square plate structures, Figure 1As shown, in some embodiments of the photovoltaic cell 10 edge coating device described in the utility model, four groups of detection sensors are provided. Two groups of detection sensors are relatively arranged on both sides of the rotating component 21 along the second direction D2, and the other two groups of detection sensors are relatively arranged on both sides of the rotating component 21 along the third direction D3. Preferably, the third direction D3 is perpendicular to the first direction D1 and the second direction D2, respectively. By setting up this structure, the four edges of the square photovoltaic cell 10 can be detected by four groups of detection sensors, and the edge position information thereof can be obtained, so as to achieve accurate and efficient coating of the edges.

[0038] Further, see Figure 1 As shown, in the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, each group of detection sensors includes a plurality of laser deflection correction sensors 40. Preferably, each group includes two laser deflection correction sensors 40, which can effectively obtain edge position information while saving space and cost. The laser deflection correction sensor 40 belongs to the prior art, which obtains edge position information by emitting lasers and using the edges of the photovoltaic cell 10 to block the lasers. Preferably, during the rotation process, the edges of the photovoltaic cell 10 are located within the range of the laser beams emitted by each laser deflection correction sensor 40.

[0039] Further, see Figure 3 As shown, the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, further includes a first mounting seat 71 and a second mounting seat 72. The first mounting seat 71 and the second mounting seat 72 are relatively arranged on both sides of the coating member 30 along the first direction D1, and the laser correction sensor 40 includes a laser emitting component 41 and a laser receiving component 42, the laser generating component is connected to the first mounting seat 71, and the laser receiving component 42 is connected to the second mounting seat 72. By setting this structure, the installation of the laser correction sensor 40 can be effectively realized. Preferably, the first mounting seat 71 and the second mounting seat 72 are both configured as square plate structures, and are connected by columns.

[0040] Further, see Figure 3 As shown, in the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, a hollow portion 711 corresponding to the rotating component 21 is provided on the first mounting seat 71. By providing the hollow portion 711, it is convenient to take parts or cell fragments and to handle dirt.

[0041] Reference Figure 1As shown, in the photovoltaic cell 10 edge coating device described in the utility model, in some embodiments, a vacuum hole 212 is provided on the connection surface 211, and the vacuum hole 212 is configured to adsorb the photovoltaic cell 10 located on the connection surface 211. The rotating part 21 of this structure, by providing the vacuum hole 212, makes the connection surface 211 and the photovoltaic cell 10 fit closely by negative pressure adsorption, so as to avoid the photovoltaic cell 10 from falling off during the coating process, thereby improving the stability of the device. Negative pressure adsorption belongs to the prior art, and its specific principle will not be repeated.

[0042] Reference Figure 5 As shown, in the edge coating device of the photovoltaic cell 10 described in the utility model, in some embodiments, the coating member 30 includes a coating wheel 31 and a feeding member 32. Preferably, the coating wheel 31 is configured as a cylindrical structure, and its axial direction is parallel to the first direction D1. The coating wheel 31 can rotate around its own axis; preferably, the coating wheel 31 is connected by arranging a second rotating member 33 to realize the rotation drive of the coating wheel 31. Preferably, the second rotating member 33 is configured as a motor. A coating groove 311 is provided on the coating wheel 31 to facilitate receiving the corresponding insulating coating material and to adapt to the edge of the photovoltaic cell 10. The feeding end of the feeding member 32 abuts the coating groove 311 to realize feeding. During coating, the feeding member 32 coats the insulating coating material in the coating groove 311, and the coating wheel 31 rotates to apply the insulating coating material to the edge of the photovoltaic cell 10.

[0043] Working principle:

[0044] Reference Figure 6 As shown, an XOY coordinate system is established. The coordinates of point O are (0, 0), and point O is located at the rotation center of the rotating component 21. The X axis is parallel to the third direction D3, and the Y axis is parallel to the second direction D2. The four vertices of the square photovoltaic cell 10 are marked as A, B, C, and D.

[0045] At this time, Figure 6 In the figure, the coordinates of the intersections of the side AB and the corresponding two laser correction sensors 40 are (a 1 , a 2 )、(b 1 , b 2 ); The coordinates of the intersection of the edge BC and the corresponding two laser correction sensors 40 are (c 1 , c 2 )、(d 1 , d 2 ); The coordinates of the intersection of the edge CD and the corresponding two laser correction sensors 40 are (e 1 , e 2 )、(f 1 , f2 ); The coordinates of the intersection of the edge DA and the corresponding two laser correction sensors 40 are (g 1 , g 2 )、(h 1 ,h 2 ).

[0046] Since the position of the laser deflection correction sensor 40 is fixed, among the eight laser deflection correction sensors 40, a 1 , b 1 、c 2 d 2 、e 1 、f 1 , g 2 、h 2 is a known value. Meanwhile, the diameter of the coating groove 311 of the coating wheel 31 is φP 1 When the insulating coating material is coated on the coating groove 311, the outer diameter of the insulating coating material is φP 3 , the tangent coating circle of the coating wheel 31 is φP 2 , where φP 1 <φP 2 <φP 3 The rotation center U(0, u 2 ); The tangent coating circle of the coating wheel 31 is tangent to the edge of the photovoltaic cell 10, and the tangent point N (n 1 , n 2 ); the intersection point M (m 1 , m 2 ).

[0047] After the photovoltaic cell 10 is in place and measured, a 1 , b 1 、c 2 d 2 、e 1 、f 1 , g 2 、h 2 is also a known value. According to (a 1 , a 2 )、(b 1 , b 2 ) can calculate the equation of the straight line AB, where y = (-a 2 +b 2 ) / (-a 1 +b 1 )x+(a 1 b 2 -a 2 b 1 ) / (a 1 -b 1). Similarly, the equations of line BC, line CD, and line DA can be calculated based on the other six points. The equations are omitted here.

[0048] According to the straight line AB and the straight line AD, we can get the intersection point A (A 1 , A 2 ), where

[0049] A 1 =(a 1 b 2 g 1 -a 1 b 2 h 1 -a 1 g 1 h 2 +a 1 g 2 h 1 -a 2 b 1 g 1 +a 2 b 1 h 1 +b 1 g 1 h 2 -b 1 g 2 h 1 ) / (a 1 g 2 -a 1 h 2 -a 2 g 1

[0050] +a 2 h 1 -b 1 g 2 +b 1 h 2 +b 2 g 1 -b 2 h 1 ),

[0051] A 2 =(a 1 b 2 g 2 -a 1 b 2 h 2 -a 2 b 1 g 2 +a 2 b 1 h 2 -a2 g 1 h 2 +a 2 g 2 h 1 +b 2 g 1 h 2 -b 2 g 2 h 1 ) / (a 1 g 2 -a 1 h 2 -a 2 g 1

[0052] +a 2 h 1 -b 1 g 2 +b 1 h 2 +b 2 g 1 -b 2 h 1 ).

[0053] According to the straight line AB, we can get point M(m 1 , m 2 ) specific coordinates, where m 1 =0,m 2 =(a 1 b 2 -a 2 b 1 ) / (a 1 -b 1 ). Given the coordinates of points O, A, and M, the angle R between line segment AM and line segment OM can be calculated using the law of cosines. 1 According to the geometric relationship, we can know the angle R between it and the line segment BM and the line segment UM 2 The Y-axis position of U is the sum of the lengths of line segments OM and MU, where u 2 =m 2 +0.5*P 2 / sin(R 1 ). Similarly, the coordinates of points B, C, and D (B 1 , B 2 )(C 1 , C 2 )(D 1 , D 2 ) are also available.

[0054] The angle W between line segment AO and line segment OM 1 With the origin O as the center, press Figure 6 The viewing angle shown is to rotate the photovoltaic cell 10 counterclockwise at a slight angle t, t <W 1 After rotation, the coordinates of points A, B, C, and D become (A 3 , A 4 )、(B 3 , B 4 )、(C 3 , C 4 )、(D 3 , D 4 ). According to (A 3 , A 4 )、(B 3 , B 4 ) calculation, recalculate the new AB line equation, M point coordinates, angle R 1 , obtain the new coordinate of U of the coating wheel 31.

[0055] Reference Figure 7 As shown, A is tangent to the coating circle φP of the coating wheel 31. 2 On the left, A is in the third quadrant. a Auxiliary line, OE a Perpendicular to AB. At this time, the lengths of OA, OB, and AB are known. According to the law of cosines, ∠AOB, ∠OAB, and OE can be calculated. a Length and AE a Length.

[0056] Among them, OE a =OA*OB*sin(∠AOB) / AB,OE a =AE a *tan(∠OAB).

[0057] According to the formula AM / ME a =OE a / UA,AE a =AM+ME a Calculating AM and ME a Length.

[0058] Among them, ∠AOE a =arctan(AE a / OE a ),

[0059] ∠AOM=∠AOE a -∠MOE a =∠AOE a -arctan(ME a / OE a ). At this time, ∠AOM is recorded as angle Q 1.

[0060] Reference Figure 8 As shown, A is tangent to the coating circle φP of the coating wheel 31. 2 On the 4th quadrant, A is in OE b Auxiliary line, OE b Perpendicular to DA. At this time, the length of OA, the length of OD, and the length of DA are known conditions. According to the cosine theorem, ∠DOA, ∠OAD, and OE can be calculated. b Length and AE b Length.

[0061] Among them, OE b =OA*OD*sin(∠AOB) / AD,OE b =AE b *tan(∠OAD).

[0062] According to the formula AM / ME b =UA / OE b ,AE b =AM=ME b Calculating AM and ME b Length.

[0063] Among them, ∠AOE b =arctan(AE b / OE b ),

[0064] ∠AOM=∠AOE b -∠MOE b =∠AOE b -arctan(ME b / OE b ). At this time, ∠AOM is recorded as angle Q 2 .

[0065] Figure 7 In the figure, point D, point C, point B are the same as point A, and point D, point C, point B are tangent to the coating circle φP of the coating wheel 31. 2 , in the third quadrant. Calculate ∠AOM at this time and record it as Q 3 , Q 5 , Q 7 .

[0066] Figure 8 In the figure, point D, point C, point B are the same as point A, and point D, point C, point B are tangent to the coating circle φP of the coating wheel 31. 2 , in the fourth quadrant. Calculate ∠AOM at this time and record it as Q 4 , Q 6 , Q 8 .

[0067] After multiple rotations of angle t, the cumulative rotation angle is greater than or equal to Figure 7 ∠AOU-Q 1 , the coating wheel 31 is away from the photovoltaic cell 10 , and the photovoltaic cell 10 is no longer coated by the coating wheel 31 .

[0068] When the accumulated rotation angle is greater than or equal to Figure 8 ∠AOU+Q 1 +Q 2 At this time, the coating wheel 31 starts to coat the DA side of the photovoltaic cell 10.

[0069] After multiple rotations of angle t, the cumulative rotation angle is greater than or equal to Figure 7 ∠DOU-Q 3 , the coating wheel 31 is away from the photovoltaic cell 10 , and the photovoltaic cell 10 is no longer coated by the coating wheel 31 .

[0070] When the accumulated rotation angle is greater than or equal to Figure 8 ∠DOU+Q 3 +Q 4 At this time, the coating wheel 31 starts to coat the CD edge of the photovoltaic cell 10.

[0071] After multiple rotations of angle t, the cumulative rotation angle is greater than or equal to Figure 7 ∠COU-Q 5 , the coating wheel 31 is away from the photovoltaic cell 10 , and the photovoltaic cell 10 is no longer coated by the coating wheel 31 .

[0072] When the accumulated rotation angle is greater than or equal to Figure 8 ∠DOU+Q 5 +Q 6 At this time, the coating wheel 31 starts to coat the BC side of the photovoltaic cell 10.

[0073] After multiple rotations of angle t, the cumulative rotation angle is greater than or equal to Figure 7 ∠COU-Q 7 , the coating wheel 31 is away from the photovoltaic cell 10 , and the photovoltaic cell 10 is no longer coated by the coating wheel 31 .

[0074] When the accumulated rotation angle is greater than or equal to Figure 8 ∠DOU+Q 7 +Q 8 At this time, the coating wheel 31 starts to coat the AB side of the photovoltaic cell 10.

[0075] When the cumulative rotation angle is equal to 360°, coating is completed.

[0076] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A photovoltaic cell edge coating device, characterized in that: include: A rotating component, wherein the rotating component can rotate around a rotating axis, wherein the axial direction of the rotating axis is parallel to the first direction, and wherein the rotating component has a connecting surface, wherein the connecting surface is used to connect to and drive the photovoltaic cell to rotate; a coating member, the coating member being disposed on one side of the rotating member along the second direction, the coating member being relatively movable along the second direction, and the coating member being configured to coat the edge of the photovoltaic cell sheet on the connecting surface when contacting the edge of the photovoltaic cell sheet; A detection sensor, the detection sensor is used to obtain edge position information of the photovoltaic cell sheet located on the connection surface, and transmit a control signal according to the obtained edge position information; A controller is used to receive the control signal and control the coating member to move so as to contact the edge of the photovoltaic cell sheet located on the connecting surface.

2. The photovoltaic cell edge coating device according to claim 1, characterized in that: It also includes a transport component, which includes two transport parts arranged opposite to each other, and the two transport parts are respectively arranged on both sides of the rotating part along the second direction. The transport parts are used to drive the photovoltaic cell to move along the third direction. Along the second direction, the size of the transport component is smaller than the size of the photovoltaic cell.

3. The photovoltaic cell edge coating device according to claim 2, characterized in that: It also includes a displacement driving component, a driving end of which is connected to the transport component, and the displacement driving component is used to drive the transport component to move relatively along the first direction.

4. The photovoltaic cell edge coating device according to claim 2, characterized in that: The transport component comprises a synchronous belt, and a surface of the synchronous belt contacting the photovoltaic cell sheet is provided with a plurality of protrusions.

5. The photovoltaic cell edge coating device according to claim 1, characterized in that: The detection sensors are provided in four groups, two of which are arranged relatively on both sides of the rotating component along the second direction, and the other two groups are arranged relatively on both sides of the rotating component along the third direction.

6. The photovoltaic cell edge coating device according to claim 5, characterized in that: Each group of detection sensors includes a plurality of laser deviation correction sensors.

7. The photovoltaic cell edge coating device according to claim 6, characterized in that , also includes a first mounting seat and a second mounting seat, the first mounting seat and the second mounting seat are relatively arranged on both sides of the coating member along the first direction, the laser correction sensor includes a laser emitting component and a laser receiving component, the laser generating component is connected to the first mounting seat, and the laser receiving component is connected to the second mounting seat.

8. The photovoltaic cell edge coating device according to claim 7, characterized in that: The first mounting seat is provided with a hollow portion corresponding to the rotating component.

9. The photovoltaic cell edge coating device according to claim 1, characterized in that: A vacuum hole is provided on the connection surface, and the vacuum hole is configured to be able to absorb the photovoltaic cell sheet located on the connection surface.

10. The photovoltaic cell edge coating device according to claim 1, characterized in that: The coating member comprises a coating wheel and a feeding component. The coating wheel is rotatable. A coating groove is arranged on the coating wheel. The feeding end of the feeding component abuts against the coating groove.

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