A stacked grid cell welding adsorption plate

Abstract

The utility model discloses a stacked grid cell welding adsorption plate, which belongs to the field of photovoltaic technology, and comprises an adsorption plate body, which has a first side surface, a second side surface and a first opening, wherein the first opening has a hole main body extending from the first side surface to the second side surface; triangular prisms, which are distributed in an array on the surface of the adsorption plate body; body ridges, which are distributed in an array on the surface of the adsorption plate body, and the body ridges are arranged on both sides of the triangular prisms; adsorption holes, which are arranged in the main body of the body ridges, and the adsorption holes have a hole main body extending from the top surface of the body ridges and connected to the first opening. The cell is supported by the triangular prisms, so that the contact surface between the cell and the adsorption plate body can be reduced, and the adsorption plate body can be prevented from absorbing heat and causing heat loss of the cell. In addition, the air interlayer formed between the back of the cell and the surface of the adsorption plate body can play a heat preservation effect during the welding process, and there is no need to preheat the back of the adsorption plate body, so as to simplify the welding process and improve the cell welding efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaics, in particular to a stacked grid cell piece welding adsorption plate. Background Art

[0002] Solar cells are made of cells welded together by conductive wires. During the welding process, the cells need to be placed on an adsorption plate. To ensure stability during the welding process, the adsorption plate is often designed with an adsorption function. Currently, most adsorption plates have an adsorption cavity inside, and a vacuum generator is connected to the adsorption cavity to form a vacuum negative pressure inside the cavity, which adsorbs the cells to the surface of the adsorption plate. Since the cells are placed directly on the surface of the adsorption plate with a large contact area, the adsorption plate will absorb heat during the welding process, causing heat loss in the cells. Therefore, the back of the adsorption plate needs to be preheated to prevent heat loss in the cells during the welding process. The welding process is complicated and the cell welding efficiency is low. Utility Model Content

[0003] Purpose of the utility model: to provide a stacked grid cell welding adsorption plate to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: A stacked grid cell welding adsorption plate, comprising an adsorption plate body, having a first side surface, a second side surface and a first opening, wherein the first opening has a hole main body extending from the first side surface to the second side surface;

[0005] Triangular prisms are distributed in an array on the surface of the adsorption plate body;

[0006] Body edges are distributed in an array on the surface of the adsorption board body, and the body edges are arranged on both sides of the triangular prism;

[0007] The adsorption hole is arranged in the main body of the body edge, and the adsorption hole has a hole main body extending from the top surface of the body edge and connected to the first opening.

[0008] Preferably, the interval between two adjacent triangular prisms in the first direction is 7 mm to 11 mm.

[0009] Preferably, the diameter of the adsorption holes is 0.8 mm to 3 mm.

[0010] Preferably, the adsorption plate body further has a second opening, and the second opening has a hole main body extending from the first side surface to the second side surface.

[0011] Preferably, it also includes fine edges distributed in an array on the edge of the surface of the adsorption board body, and the fine edges are arranged on both sides of the body edge.

[0012] Preferably, the long sides of the thin edges are arranged along the first direction.

[0013] Preferably, the upper surfaces of the triangular prism, body-shaped ridges and thin ridges are in the same horizontal plane, and the vertical height from the lower surface to the upper surface of the triangular prism, body-shaped ridges and thin ridges is 0.5 mm to 3.5 mm.

[0014] In summary, the beneficial effects of the utility model are:

[0015] 1. By supporting the battery cell with a triangular prism, the contact area between the battery cell and the adsorption plate body can be reduced, preventing the adsorption plate body from absorbing heat and causing heat loss of the battery cell. In addition, the air layer formed between the back of the battery cell and the surface of the adsorption plate body can play a heat preservation effect during the welding process, and there is no need to preheat the back of the adsorption plate body, so as to simplify the welding process and improve the welding efficiency of the battery cell.

[0016] 2. The second opening on the adsorption plate body can increase the heating surface of the adsorption plate body, which can quickly increase the temperature around the battery cell, thereby reducing the output power and heating time of the infrared lamp tube and increasing the service life of the infrared lamp tube.

[0017] 3. Supporting the edge of the battery cell by fine ridges can prevent the conductive wire from pressing down and causing the battery cell to break, and maintain the welding temperature of the battery edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the adsorption plate provided by the utility model.

[0019] The figures are marked as follows: 1. adsorption plate body; 2. first side surface; 3. second side surface; 4. first opening; 5. triangular prism; 6. body edge; 7. adsorption hole; 8. second opening; 9. fine edge. DETAILED DESCRIPTION

[0020] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described. Example 1

[0021] like Figure 1As shown, the stacked grid cell welding adsorption plate disclosed in this embodiment includes an adsorption plate body 1, having a first side surface 2, a second side surface 3 and a first opening 4, the first opening 4 having a hole main body extending from the first side surface 2 to the second side surface 3; triangular prisms 5, which are distributed in an array on the surface of the adsorption plate body 1; body prisms 6, which are distributed in an array on the surface of the adsorption plate body 1, and the body prisms 6 are arranged on both sides of the triangular prisms 5; adsorption holes 7, which are arranged in the main body of the body prisms 6, and the adsorption holes 7 have a hole main body extending from the top surface of the body prisms 6 and connected to the first opening 4. The battery cell is supported by the triangular prisms 5, which can reduce the contact area between the battery cell and the adsorption plate body 1, and prevent the adsorption plate body 1 from absorbing heat and causing heat loss of the battery cell. In addition, the air interlayer formed between the back of the battery cell and the surface of the adsorption plate body 1 can play a heat preservation effect during the welding process, and there is no need to preheat the back of the adsorption plate body 1, so as to simplify the welding process and improve the battery cell welding efficiency.

[0022] The body edge 6 can be a quadrangular prism.

[0023] like Figure 1 As shown, the battery cell is placed on the triangular prism 5 on the surface of the adsorption plate body 1 and its position is regulated. One end of the first opening 4 is blocked and the other end is connected to the vacuum generator to form a vacuum negative pressure in the first opening 4. The battery cell can be adsorbed to the surface of the adsorption plate body 1 through the adsorption hole 7.

[0024] like Figure 1 As shown, the interval between two adjacent triangular prisms 5 in the first direction is 7mm~11mm. If the interval between the triangular prisms 5 in the first direction is too close, the contact area between the battery cell and the adsorption plate body 1 will increase, causing the adsorption plate body 1 to absorb heat and cause heat loss of the battery cell. If the interval between the triangular prisms 5 in the first direction is too far, the support of the triangular prisms 5 to the battery cell will be insufficient, and the downward pressure of the conductive wire will cause the battery cell to break.

[0025] The first direction refers to the width direction of the adsorption plate body 1 .

[0026] like Figure 1 As shown, the aperture of the adsorption hole 7 is 0.8mm~3mm. Under the rated power of the vacuum generator, if the aperture of the adsorption hole 7 is too small, the suction force will be too large, resulting in the battery cell being broken. If the aperture of the adsorption hole 7 is too small, the suction force will be too small, and the battery cell cannot be stably adsorbed on the surface of the adsorption plate body 1.

[0027] like Figure 1 As shown, the upper surfaces of the triangular prism 5 and the body prism 6 are in the same horizontal plane, and the vertical height from the lower surface to the upper surface of the triangular prism 5 and the body prism 6 is 0.5mm~3.5mm to ensure the flatness of the surface of the adsorption board body 1 when the battery cell is placed on it. Example 2

[0028] like Figure 1 As shown, the difference from Example 1 is that the stacked grid cell welding adsorption plate disclosed in this embodiment has an adsorption plate body 1 that also has a second opening 8. The second opening 8 has a hole main body extending from the first side 2 to the second side 3. The second opening 8 opened on the adsorption plate body 1 can increase the heating surface of the adsorption plate body 1, and can quickly increase the temperature around the cell, so as to reduce the output power and heating time of the infrared lamp, and increase the service life of the infrared lamp. Example 3

[0029] like Figure 1 As shown, the difference from Example 1 is that the stacked grid cell welding adsorption plate disclosed in this embodiment also includes fine edges 9, which are distributed in an array on the edge of the surface of the adsorption plate body 1, and the fine edges 9 are arranged on both sides of the body edges 6. The fine edges 9 support the edge of the cell, which can prevent the conductive wire from pressing down and causing the cell to break, and maintain the welding temperature of the cell edge.

[0030] like Figure 1 As shown, the long side of the thin ridge 9 is arranged along the first direction, which can increase the contact surface between the thin ridge 9 and the battery cell, and ensure that the thin ridge 9 stably supports the edge of the battery cell.

[0031] The first direction refers to the width direction of the adsorption plate body 1 .

[0032] like Figure 1 As shown, the upper surfaces of the thin prism 9 and the triangular prism 5 are in the same horizontal plane, and the vertical height from the lower surface to the upper surface of the thin prism 9 is 0.5 mm to 3.5 mm to ensure the flatness of the surface of the adsorption board body 1 on which the battery cell is placed.

[0033] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A stacked grid cell welding adsorption plate, characterized in that: It includes an adsorption plate body, having a first side surface, a second side surface and a first opening, wherein the first opening has a hole main body extending from the first side surface to the second side surface; Triangular prisms are distributed in an array on the surface of the adsorption plate body; Body edges are distributed in an array on the surface of the adsorption board body, and the body edges are arranged on both sides of the triangular prism; The adsorption hole is arranged in the main body of the body edge, and the adsorption hole has a hole main body extending from the top surface of the body edge and connected to the first opening.

2. The stacked grid cell welding adsorption plate according to claim 1, characterized in that: The interval between two adjacent triangular prisms in the first direction is 7 mm to 11 mm.

3. The stacked grid cell welding adsorption plate according to claim 1, characterized in that: The diameter of the adsorption hole is 0.8 mm to 3 mm.

4. The stacked grid cell welding adsorption plate according to claim 1, characterized in that: The adsorption plate body further has a second opening, and the second opening has a hole main body extending from the first side surface to the second side surface.

5. The stacked grid cell welding adsorption plate according to claim 1, characterized in that: It also includes fine edges distributed in an array on the edge of the surface of the adsorption plate body, and the fine edges are arranged on both sides of the body edge.

6. The stacked grid cell welding adsorption plate according to claim 5, characterized in that: The long sides of the thin edges are arranged along the first direction.

7. The stacked grid cell welding adsorption plate according to claim 5, characterized in that: The upper surfaces of the triangular prism, body-shaped ridges and thin ridges are in the same horizontal plane, and the vertical height from the lower surface to the upper surface of the triangular prism, body-shaped ridges and thin ridges is 0.5 mm to 3.5 mm.

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