Solar cell welding jig and welding machine

Abstract

The utility model relates to the technical field of welding machines, in particular to a solar cell welding jig and a welding machine. The solar cell welding jig comprises a jig body, a plurality of pressing needle assemblies and a pressing pad. Wherein a first mounting hole is formed in the jig body, the pressing needle assembly is arranged in the first mounting hole in a penetrating mode, the pressing needle assembly is movably connected with the jig body, the pressing pad is connected with the bottom of the jig body, the bottom of the pressing needle assembly penetrates through the pressing pad and protrudes out of a preset gap in the bottom of the pressing pad, and the pressing pad is configured to press a welding strip. The pressing needle assembly can make contact with the welding strip in the first state, and the preset gap is zero. The pressing needle assembly and the pressing pad can press the welding strip in the second state. According to the solar cell welding jig, the stability and reliability of connection between the welding strip and the solar cell can be improved, the product yield is improved, the hidden crack risk of the solar cell is reduced, and the weight and cost of the solar cell welding jig are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a solar cell welding fixture and a welding machine. Background Art

[0002] With the continuous development and innovation of solar cells, currently, busbar-free solar cells are becoming more and more popular because they can reduce the metallization cost of solar cells.

[0003] A plurality of solar cells are connected by welding ribbons to form a battery string. Specifically, the welding ribbons are welded to the fine grid lines on the solar cells. During the welding process, since one end of the welding ribbon is clamped by the welding ribbon wire clamp, this end will be in a warped state (i.e., the gap between the welding ribbon at this end and the solar cell is larger). At this time, when the traditional welding jig is used to press the welding ribbon, since the welding ribbon at one end clamped by the wire clamp is in a warped state, it is easy for the welding ribbon and the fine grid lines to be inconsistent after the welding jig is pressed by the welding jig, that is, the bonding force between the welding ribbon at one end clamped by the wire clamp and the fine grid lines is larger, which will lead to the phenomenon that the welding ribbon is compressed and deformed, and the phenomenon that the welding ribbon and the fine grid lines on the solar cell are not firmly pressed locally, which reduces the reliability of the battery string, reduces the product yield, and increases the cost.

[0004] Therefore, it is urgent to design a solar cell welding fixture and a welding machine to solve the above technical problems. Utility Model Content

[0005] The first purpose of the utility model is to provide a solar cell welding jig, which can improve the stability and reliability of the connection between the welding ribbon and the solar cell, improve the product yield and save costs.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a solar cell welding jig, comprising:

[0008] A fixture body, wherein a first mounting hole is provided on the fixture body;

[0009] A press needle assembly, wherein the press needle assembly is provided in plurality, the press needle assembly is inserted into the first mounting hole, and the press needle assembly is movably connected to the fixture body;

[0010] A pressure pad, the pressure pad is connected to the bottom of the jig body, the bottom of the pressure needle assembly passes through the pressure pad and protrudes from a preset gap at the bottom of the pressure pad, and the pressure pad is configured to press the welding strip;

[0011] In a first state, the pressure needle assembly can contact the solder strip, and the preset gap is zero; in a second state, both the pressure needle assembly and the pressure pad can press the solder strip.

[0012] As an optional technical solution for a solar cell welding jig, the press pin assembly includes a press pin body, a limiter and an elastic member, the elastic member is sleeved on the press pin body, one end of the elastic member is connected to the press pin body, and the other end is connected to the jig body; the limiter is sleeved on the press pin body, and the limiter is located above the jig body.

[0013] As an optional technical solution for a solar cell welding jig, a first step portion is provided on the press pin body, and the elastic member is connected to the first step portion.

[0014] As an optional technical solution for a solar cell welding jig, the jig body includes a crossbeam and a longitudinal beam, the crossbeam is connected to the longitudinal beam, the extension direction of the longitudinal beam is consistent with the extension direction of the fine grid line on the solar cell, and the first mounting hole is arranged on the longitudinal beam.

[0015] As an optional technical solution for a solar cell welding jig, the horizontal beams are arranged in a plurality at equal intervals, and the vertical beams are arranged in a plurality at equal intervals.

[0016] As an optional technical solution for a solar cell welding jig, a second mounting hole is provided on the pressure pad, the first mounting hole and the second mounting hole are provided correspondingly, and the pressure needle assembly is inserted into the first mounting hole and the second mounting hole.

[0017] As an optional technical solution for a solar cell welding jig, a connecting portion is provided on the top of the pressure pad, a connecting hole is provided on the crossbeam, and the connecting portion is inserted into the connecting hole.

[0018] As an optional technical solution for a solar cell welding jig, a clamping protrusion is provided on the connecting portion, a second step portion is provided in the connecting hole, and the clamping protrusion is clamped and connected to the second step portion.

[0019] As an optional technical solution for a solar cell welding jig, a plurality of grid positions are arranged at equal intervals on the bottom of the pressure pad, and the grid positions are configured to cause the pressure pad to deform.

[0020] The second purpose of the utility model is to provide a welding machine, which can improve the stability and reliability of welding between welding strips and solar cell sheets, improve product yield and save costs.

[0021] To achieve this purpose, the utility model adopts the following technical solutions:

[0022] The utility model provides a welding machine, which comprises the above-mentioned solar cell welding fixture.

[0023] The beneficial effects of the utility model include at least:

[0024] The utility model provides a solar cell welding jig, which includes a jig body, a plurality of pressure pin assemblies and a pressure pad. The jig body is provided with a first mounting hole, the pressure pin assembly is inserted into the first mounting hole, and the pressure pin assembly is movably connected to the jig body, the pressure pad is connected to the bottom of the jig body, the bottom of the pressure pin assembly passes through the pressure pad and protrudes from the bottom preset gap of the pressure pad, and the pressure pad is configured to press the welding strip. The pressure pin assembly can contact the welding strip in a first state, and the preset gap is zero; the pressure pin assembly and the pressure pad can both press the welding strip in a second state. In a natural state, the bottom of the pressure pin assembly protrudes from the bottom surface preset gap of the jig body, so that in the process of pressing the jig body downward, the pressure pin assembly can first contact the welding strip and eliminate the preset gap, at which time the preset gap becomes zero, and the pressure pin assembly is in the first state. At this time, the pressure needle assembly is also in contact with the welding strip at one end clamped by the wire clamp. In other words, in the first state, all the pressure needle assemblies can contact the welding strip, and the preset gap at this time becomes zero, thereby eliminating the problem that the welding strip (head welding strip) at one end clamped by the wire clamp in the prior art is deformed by the pressure needle assembly due to tilting. Then the jig body is driven downward by external force, and the pressure needle assembly is in the second state and can compress the welding strip. The solar cell welding jig in the utility model compresses the welding strip in two steps, that is, when the pressure needle assembly is in the first state, all the pressure needle assemblies can first contact the welding strip (no force is applied to the welding strip at this time), and then when the pressure needle assembly is in the second state, all the pressure needle assemblies can simultaneously apply force to the welding strip and compress the welding strip, thereby improving the uniformity of the force on the welding strip, improving the stability and reliability of the connection between the welding strip and the fine grid line on the solar cell, avoiding the risk of the welding strip (head welding strip) at one end clamped by the wire clamp being overstressed and deformed, improving the product yield, and saving costs. In addition, the setting of the pressure pad can reduce the number of pressure needle components to a certain extent, thereby reducing the phenomenon of hidden cracks in solar cells, improving product yield, and reducing the weight and cost of the solar cell welding fixture.

[0025] The utility model also provides a welding machine, which can improve the stability and reliability of welding between the welding belt and the solar cell sheet, improve the product yield and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the solar cell welding fixture provided by the embodiment of the utility model;

[0028] Figure 2 It is an exploded view of the solar cell welding jig provided by the embodiment of the utility model;

[0029] Figure 3 It is a structural schematic diagram of the fixture body provided by an embodiment of the utility model;

[0030] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0031] Figure 5 It is a structural schematic diagram of the needle pressing assembly provided by an embodiment of the utility model;

[0032] Figure 6 It is a structural schematic diagram of a pressure pad provided by an embodiment of the utility model.

[0033] Reference numerals

[0034] 100, fixture body; 110, first mounting hole; 120, crossbeam; 130, longitudinal beam; 140, connecting hole; 150, second step portion; 200, press needle assembly; 210, press needle body; 220, limiter; 230, elastic member; 240, first step portion; 300, press pad; 310, second mounting hole; 320, connecting portion; 330, clamping protrusion; 340, grille position; 400, iron block; 500, light hole. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] The present embodiment provides a solar cell welding jig, which can improve the stability and reliability of welding between a welding ribbon and a solar cell, improve product yield, and save costs.

[0043] like Figure 1-Figure 5 As shown, the solar cell welding jig mainly includes a jig body 100 and a plurality of pressure pin assemblies 200. Among them, a first mounting hole 110 is provided on the jig body 100, and the pressure pin assembly 200 is inserted into the first mounting hole 110, and the pressure pin assembly 200 is movably connected to the jig body 100, and the bottom of the pressure pin assembly 200 protrudes from the bottom surface of the jig body 100 by a preset gap, and the pressure pin assembly 200 can contact the welding strip in the first state, and the preset gap is zero; the pressure pin assembly 200 can press the welding strip in the second state.

[0044] Based on the above design, the bottom of the pressure needle assembly 200 protrudes from the bottom surface of the jig body 100 by a preset gap in the natural state, so that in the process of pressing the jig body 100, the pressure needle assembly 200 can first contact the welding strip and eliminate the preset gap, at which time the preset gap becomes zero, and the pressure needle assembly 200 is in the first state. At this time, the pressure needle assembly 200 is also in contact with the welding strip at one end clamped by the wire clamp. In other words, in the first state, all the pressure needle assemblies 200 can contact the welding strip, and the preset gap at this time becomes zero, thereby eliminating the problem of the welding strip (head welding strip) at one end clamped by the wire clamp in the prior art being tilted, causing the pressure needle assembly 200 to deform the welding strip. Then the jig body 100 is driven downward by an external force, and at this time the pressure needle assembly 200 is in the second state and can press the welding strip. The solar cell welding jig in this embodiment presses the welding ribbon in two steps, that is, when the pressure needle assembly 200 is in the first state, all the pressure needle assemblies 200 can first contact the welding ribbon (no force is applied to the welding ribbon at this time), and then when the pressure needle assembly 200 is in the second state, all the pressure needle assemblies 200 can simultaneously apply force to the welding ribbon and press the welding ribbon, thereby improving the uniformity of the force on the welding ribbon, improving the stability and reliability of the connection between the welding ribbon and the fine grid wire on the solar cell, avoiding the risk of the welding ribbon at one end clamped by the wire clamp (head welding ribbon) being compressed and deformed due to excessive force, improving product yield and saving costs.

[0045] It can be understood that the first state and the second state of the solar cell welding fixture in this embodiment are both controlled by the controller, and the control principle of the controller belongs to the prior art and will not be elaborated here.

[0046] Optionally, the preset gap in this embodiment can be set to a value such as 1 mm to 5 mm.

[0047] like Figure 5 As shown, the pressing needle assembly 200 in this embodiment includes a pressing needle body 210, a limiting member 220 and an elastic member 230. The elastic member 230 is sleeved on the pressing needle body 210, and one end of the elastic member 230 is connected to the pressing needle body 210, and the other end is connected to the jig body 100; the limiting member 220 is sleeved on the pressing needle body 210, and the limiting member 220 is located above the jig body 100.

[0048] The setting of the elastic member 230 can realize the up and down movement of the pressing needle body 210, so that the pressing needle body 210 can maintain a preset gap with the bottom of the fixture body 100 in a natural state. During the pressing process of the fixture body 100, the pressing needle body 210 can first contact the welding strip and eliminate the preset gap, so that the preset gap becomes zero. After the pressing needle body 210 presses the welding strip, the fixture body 100 rises, and the pressing needle assembly 200 can return to a natural state under the action of the elastic member 230. The setting of the limiter 220 can prevent the pressing needle assembly 200 from falling from the first mounting hole 110, thereby improving reliability.

[0049] Optionally, the limiting member 220 in this embodiment can be set as a nut, and the elastic member 230 can be set as a spring.

[0050] Furthermore, if Figure 5 As shown, the first step portion 240 is provided on the pressing needle body 210 in this embodiment, and the elastic member 230 is connected to the first step portion 240. The provision of the first step portion 240 can improve the stability and reliability of the connection between the elastic member 230 and the pressing needle body 210, and improve the convenience of the elastic member 230 driving the pressing needle body 210.

[0051] like Figure 4As shown, the fixture body 100 includes a crossbeam 120 and a longitudinal beam 130, the crossbeam 120 and the longitudinal beam 130 are connected, the extension direction of the longitudinal beam 130 is consistent with the extension direction of the fine grid lines on the solar cell, and the first mounting hole 110 is provided on the longitudinal beam 130. Optionally, the crossbeam 120 and the longitudinal beam 130 can be arranged in multiple numbers at equal intervals, and each longitudinal beam 130 is provided with multiple first mounting holes 110 at equal intervals, and each first mounting hole 110 is adapted to a press needle assembly 200, thereby improving the reliability and force uniformity of the press needle assembly 200 pressing the welding strip, and avoiding the phenomenon that the local welding strip and the fine grid lines on the solar cell are not firmly pressed.

[0052] like Figure 1-Figure 2 , Figure 6 As shown, in this embodiment, the solar cell welding jig also includes a pressure pad 300, which is connected to the bottom of the jig body 100, and the bottom of the pressure pin assembly 200 protrudes from the bottom of the pressure pad 300 by a preset gap, and the pressure pad 300 is configured to press the welding strip. Optionally, the pressure pad 300 can be made of silicone, rubber or high-temperature resistant soft rubber material. The setting of the pressure pad 300 can reduce the number of pressure pin assemblies 200 to a certain extent, thereby reducing the phenomenon of hidden cracks in solar cells and improving product yield.

[0053] It is understandable that the pressure pad 300 is made of a material with a certain elasticity, and the pressure pin body 210 is usually made of metal. Therefore, the setting of the pressure pad 300 can reduce the phenomenon of hidden cracks in solar cells to a certain extent and improve product yield.

[0054] Optionally, the pressure pad 300 in this embodiment has a temperature resistance of ≥250° C. and a hardness of Shore A30-A60.

[0055] Furthermore, if Figure 6 As shown, the pressure pad 300 is provided with a second mounting hole 310, the first mounting hole 110 and the second mounting hole 310 are provided correspondingly, and the pressure needle assembly 200 is penetrated in the first mounting hole 110 and the second mounting hole 310. A connecting portion 320 is provided on the top of the pressure pad 300, and a connecting hole 140 is provided on the crossbeam 120, and the connecting portion 320 is penetrated in the connecting hole 140. The crossbeam 120 is perpendicular to the longitudinal direction. On the one hand, the setting of the crossbeam 120 can improve the parallelism of multiple longitudinal beams 130 and improve the accuracy of the pressure needle assembly 200 in pressing the welding strip; on the other hand, since the crossbeam 120 is perpendicular to the longitudinal direction, the pressure pad 300 can simultaneously press multiple welding strips, thereby improving work efficiency.

[0056] Furthermore, in this embodiment, a latching protrusion 330 is provided on the connecting portion 320, and a second step portion 150 is provided in the connecting hole 140. The latching protrusion 330 is latched and connected with the second step portion 150, thereby improving the stability and reliability of the connection between the pressure pad 300 and the fixture body 100 and preventing the pressure pad 300 from falling.

[0057] like Figure 6 As shown, in this embodiment, a plurality of grid positions 340 are evenly spaced at the bottom of the pressure pad 300, and the grid positions 340 are configured to deform the pressure pad 300. In other words, the pressure pad 300 can be deformed well by setting the grid positions 340, thereby generating a reaction force to press the solder strip and improve reliability.

[0058] like Figure 1-Figure 2 As shown, the opposite sides of the longitudinal beam 130 in this embodiment are respectively provided with iron blocks 400 that can be mutually adsorbed with the magnets on the support frame at the bottom of the conveyor belt. Exemplarily, the iron block 400 can be connected to the longitudinal beam 130 by screws. The support frame generally includes a support plate located at the bottom of the conveyor belt, and the magnets are installed on the opposite sides of the support plate. The solar cell and welding tape to be welded are laid on the conveyor belt of the conveyor device, and magnets are arranged at the bottom and both sides of the conveyor belt on the support frame of the conveyor device. When the solar cell welding jig presses the welding tape and solar cells stacked on the conveyor belt, the iron blocks 400 at both ends of the solar cell welding jig are adsorbed on the magnets on the support frame, so that the solar cell welding jig can be adsorbed on the conveyor belt, and then the solar cell welding jig can stably run with the conveyor belt.

[0059] Furthermore, a flexible pad is provided on the bottom surface of the iron block 400 . When the solar cell welding jig is placed on the conveyor belt, the flexible pad contacts the conveyor belt, thereby preventing the conveyor belt from being worn by the iron block 400 .

[0060] like Figure 3 As shown, in the present embodiment, a light-through hole 500 is formed between two adjacent horizontal beams 120 and two adjacent longitudinal beams 130, so that the light-transmitting area of ​​the jig body 100 can be further increased, so that the light from the lamp tube used for welding the welding strip located above the jig body 100 can pass through the light-transmitting hole to weld the welding strip, and the provision of the light-transmitting hole can also reduce the weight of the jig body 100, thereby achieving the purpose of lightweighting.

[0061] This embodiment also provides a welding machine, which includes the above solar cell welding jig. The welding machine can improve the stability and reliability of welding between the welding ribbon and the solar cell, improve the product yield, and save costs.

[0062] Obviously, the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

[0063] Note that in the description of this specification, the reference terms "some embodiments", "other embodiments", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A solar cell welding jig, characterized in that: include: A fixture body (100), wherein the fixture body (100) is provided with a first mounting hole (110); A pressing needle assembly (200), wherein the pressing needle assembly (200) is provided in plurality, the pressing needle assembly (200) is inserted into the first mounting hole (110), and the pressing needle assembly (200) is movably connected to the fixture body (100); A pressure pad (300), the pressure pad (300) is connected to the bottom of the jig body (100), the bottom of the pressure needle assembly (200) passes through the pressure pad (300) and protrudes from a preset gap at the bottom of the pressure pad (300), and the pressure pad (300) is configured to press the welding strip; The pressure needle assembly (200) is capable of contacting the solder strip in a first state, and the preset gap is zero; and the pressure needle assembly (200) and the pressure pad (300) are both capable of pressing the solder strip in a second state.

2. The solar cell welding jig according to claim 1, characterized in that: The pressing needle assembly (200) comprises a pressing needle body (210), a limiting member (220) and an elastic member (230); the elastic member (230) is sleeved on the pressing needle body (210), and one end of the elastic member (230) is connected to the pressing needle body (210), and the other end is connected to the fixture body (100); the limiting member (220) is sleeved on the pressing needle body (210), and the limiting member (220) is located above the fixture body (100).

3. The solar cell welding jig according to claim 2, characterized in that: The pressure needle body (210) is provided with a first step portion (240), and the elastic member (230) is connected to the first step portion (240).

4. The solar cell welding jig according to claim 1, characterized in that: The fixture body (100) comprises a crossbeam (120) and a longitudinal beam (130), wherein the crossbeam (120) and the longitudinal beam (130) are connected, the extension direction of the longitudinal beam (130) is consistent with the extension direction of the fine grid lines on the solar cell sheet, and the first mounting hole (110) is arranged on the longitudinal beam (130).

5. The solar cell welding jig according to claim 4, characterized in that: The transverse beams (120) are arranged in plurality at equal intervals, and the longitudinal beams (130) are arranged in plurality at equal intervals.

6. The solar cell welding jig according to claim 4, characterized in that: The pressure pad (300) is provided with a second mounting hole (310), the first mounting hole (110) and the second mounting hole (310) are arranged correspondingly, and the pressure needle assembly (200) is inserted into the first mounting hole (110) and the second mounting hole (310).

7. The solar cell welding jig according to claim 4, characterized in that: A connecting portion (320) is provided on the top of the pressure pad (300), a connecting hole (140) is provided on the crossbeam (120), and the connecting portion (320) is inserted into the connecting hole (140).

8. The solar cell welding jig according to claim 7, characterized in that: The connecting portion (320) is provided with a locking protrusion (330), the connecting hole (140) is provided with a second step portion (150), and the locking protrusion (330) is connected to the second step portion (150) by locking engagement.

9. The solar cell welding jig according to any one of claims 1 to 8, characterized in that: A plurality of grid positions (340) are arranged at equal intervals at the bottom of the pressure pad (300), and the grid positions (340) are configured to cause the pressure pad (300) to deform.

10. A welding machine, characterized in that The welding machine comprises the solar cell welding jig according to any one of claims 1-9.

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