Diode and bus bar welding joint

Abstract

The utility model relates to the technical field of welding, in particular to a diode and bus bar welding head. The welding head comprises a connecting piece, a welding head body and a telescopic power device for driving the welding head body to ascend and descend, the welding head body is installed on the connecting piece, a heating part is arranged in the welding head body, and a groove is formed in the bottom of the welding head body; the connecting piece comprises a connecting plate, a heat insulation column and a fixing base, the welding head body is installed at one end of the connecting plate, and the other end of the connecting plate is installed on the fixing base through the heat insulation column. The groove formed in the bottom of the welding head body can avoid the position of the diode, and then the positive electrode and the negative electrode of the two ends of the diode can be welded to a bus bar.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a diode and busbar welding head. Background Technology

[0002] With the ever-increasing demand for photovoltaic new energy, cost reduction and efficiency improvement of photovoltaic products have become their core competitiveness. This requires new technological innovations to drive this development. Traditional crystalline silicon solar modules, due to their inflexibility, have significantly higher power generation efficiency than thin-film products, but their cross-domain applications are limited. Flexible, lightweight modules combine the high efficiency of traditional crystalline silicon modules with the flexibility of thin-film modules, making them widely applicable in various fields. They are also simple and convenient to install, saving costs. With the rise of BIPV (Building Integrated Photovoltaics), flexible, lightweight modules are gaining a broader market space due to their unique advantages. Currently, the manufacturing equipment for flexible modules varies greatly. One important process in production is the welding of busbars to diodes. Two fixed-length busbars are connected using the diodes and their positive and negative terminals. However, using traditional welding heads, it is difficult to weld the positive and negative terminals of the busbars while avoiding the diodes. Utility Model Content

[0003] To address the problems in the prior art, the present invention aims to provide a diode and busbar welding head that can weld the positive and negative terminals at both ends of the diode while avoiding the diode.

[0004] Specifically, the diode and busbar welding head includes a connector, a welding head body, and a telescopic power device that drives the welding head body to move up and down. The welding head body is mounted on the connector, and a heating part is provided inside the welding head body. A groove is provided at the bottom of the welding head body. The connector includes a connecting plate, a heat insulation column, and a fixing seat. The welding head body is mounted on one end of the connecting plate, and the other end of the connecting plate is mounted on the fixing seat through the heat insulation column.

[0005] The groove at the bottom of the welding head body avoids the diode position, allowing the positive and negative terminals of the diode to be welded to the busbar. The heat insulation pillar reduces the contact area between the connecting plate and the mounting base, thereby reducing the transfer of welding temperature from the welding head body.

[0006] Specifically, the connecting plate has an installation groove cut into it according to the main body of the welding head.

[0007] The mounting slots on the connecting plate facilitate precise installation of the welding head body onto the connecting plate.

[0008] Optionally, the connecting plate has a round hole, and the fixing base has a waist hole.

[0009] By using round holes and waist holes, the connectors can be made lighter, reducing the load on the telescopic power device.

[0010] Specifically, the fixed base also has a guide hole, and a guide shaft is fitted into the guide hole. The fixed base is installed on the output end of the telescopic power device through the guide shaft.

[0011] The fixed base has a guide hole, and a guide shaft is fitted into the guide hole. The fixed base is installed on the output end of the telescopic power device through the guide shaft, which can realize the lifting and lowering action of the welding head body.

[0012] Specifically, the guide shaft sleeve is equipped with an elastic element, and both ends of the elastic element are connected to the fixed seat and the telescopic power device, respectively.

[0013] The elastic element sleeved on the guide shaft, with its two ends connected to the fixed seat and the telescopic power device, can prevent the welding head body from making direct hard contact during the descent welding process, thus avoiding damage to the welding head body.

[0014] Specifically, a heat insulation plate is installed between the fixed base and the output end of the telescopic power device, and a through hole is opened on the heat insulation plate corresponding to the guide hole position.

[0015] By installing heat insulation plates, a large amount of heat from the welding head can be prevented from being transferred to the telescopic power device, thus preventing damage to it.

[0016] Furthermore, the diode and busbar welding head also includes a back plate, the telescopic power device fixing end is mounted on the back plate, and the back plate is also provided with a waist hole.

[0017] The position and height of the diode and busbar solder joints can be easily adjusted via the waist hole on the back plate.

[0018] In summary, the diode and busbar welding head design allows for welding of both positive and negative terminals while avoiding the diode itself. The heat insulation pillars reduce the contact area between the connecting plate and the mounting base, thus minimizing heat transfer to the welding head body. The mounting slots on the connecting plate facilitate precise installation of the welding head body. The round and oblong holes reduce the weight of the connectors and decrease the load on the telescopic power unit. The mounting base has guide holes with guide shafts, allowing the mounting base to be installed on the output end of the telescopic power unit, enabling the lifting and lowering of the welding head body. The elastic element fitted onto the guide shaft, with both ends connected to the mounting base and the telescopic power unit, prevents direct hard contact during welding, thus avoiding damage to the welding head body. The heat insulation plate prevents excessive heat transfer from the welding head to the telescopic power unit, preventing damage. The oblong holes on the back plate allow for easy adjustment of the diode and busbar welding head position. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the welding head of this utility model;

[0021] Figure 3 This is a schematic diagram of the connecting component structure of this utility model;

[0022] Figure 4 This is a schematic diagram showing the connection between the fixed base and the telescopic power device of this utility model.

[0023] Reference numerals: 10, back plate; 100, welding head body; 101, heating part; 102, groove; 200, connector; 201, connecting plate; 202, heat insulation column; 203, fixing base; 204, mounting groove; 205, guide hole; 206, guide shaft; 207, elastic element; 208, heat insulation plate; 300, telescopic power device; 400, back plate; 401, waist hole. Detailed Implementation

[0024] The purpose of this invention is to provide a diode and busbar welding head that can weld the positive and negative terminals at both ends of the diode while avoiding the diode.

[0025] according to Figure 1 As shown, the diode and busbar welding head includes a connector 200, a welding head body 100, and a telescopic power device 300 that drives the welding head body 100 to perform lifting and lowering actions. In this embodiment, the telescopic power device 300 is a cylinder, and the welding head body 100 is mounted on the output end of the telescopic power device 300 through the connector 200.

[0026] according to Figure 2 As shown, the welding head body 100 is provided with a heating part 101 inside. In this embodiment, the heating part 101 is a heating rod. By setting the heating part 101, the welding head body 100 can reach the welding temperature required for welding. The bottom of the welding head body 100 is also provided with a groove 102. The groove 102 at the bottom of the welding head body 100 can avoid the position of the diode, so that the positive and negative terminals of the diode can be welded to the busbar.

[0027] according to Figure 3As shown, the connector 200 includes a connecting plate 201, heat insulation columns 202, and a fixing base 203. The connecting plate 201 has an installation groove 204 for the welding head body 100, and the welding head body 100 is fixed in the installation groove 204. The installation groove 204 on the connecting plate 201 facilitates the precise installation of the welding head body 100 and the connecting plate 201. The connecting plate 201 is fixedly connected to the fixing base 203 through four sets of heat insulation columns 202 installed in the upper part. The setting of the heat insulation columns 202 can reduce the contact area between the connecting plate 201 and the fixing base 203, thereby reducing the transmission of welding temperature of the welding head body 100. The connecting plate 201 has a round hole, and the fixing base 203 has a waist hole. The setting of the round hole and the waist hole can make the connector 200 lightweight and reduce the load on the telescopic power device.

[0028] according to Figure 3 and Figure 4 As shown, a guide hole 205 is also provided on the fixed base 203. The guide hole 205 connects the fixed base 203 to the output end of the telescopic power device 300 through a guide shaft 206. The fixed base 203 is connected to the output end of the telescopic power device 300 through the guide hole 205 and the guide shaft 206. The guide shaft 206 is also fitted with an elastic element 207. In this embodiment, the elastic element 207 is a compression spring. Both ends of the elastic element 207 are connected to the fixed base 203 and the telescopic power device 300, respectively. The elastic element 207 sleeved on the shaft 206 allows the welding head body 100 to rise relative to the telescopic power device 300 when it descends to the welding position. This avoids direct hard contact between the welding head body 100 and the welding head body 300 during descent, which could damage the welding head body 100. A heat insulation plate 208 is also installed between the fixed base 203 and the output end of the telescopic power device 300. The heat insulation plate 208 has through holes corresponding to the positions of each guide hole 205. The heat insulation plate 208 prevents a large amount of heat from the welding head body 100 from being transferred to the telescopic power device 300, thus preventing damage to the telescopic power device.

[0029] according to Figure 1 As shown, the diode and busbar welding head also includes a back plate 400. The fixed end of the telescopic power device 300 is installed on the back plate 400. Four sets of waist holes 401 are vertically opened on the back plate 400. The position and height of the diode and busbar welding head can be easily adjusted through the waist holes 401 opened on the back plate 400.

[0030] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art that are not covered by the invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the appended claims.

[0031] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A diode-to-busbar welding head, comprising a connector, a welding head body, and a telescopic power device for driving the welding head body to move up and down, wherein the welding head body is mounted on the connector, characterized in that, The welding head body has a heating element inside, and a groove is formed at the bottom of the welding head body; the connecting component includes a connecting plate, a heat insulation column and a fixing base, the welding head body is installed at one end of the connecting plate, and the other end of the connecting plate is installed on the fixing base through the heat insulation column.

2. The diode-busbar welding head according to claim 1, characterized in that, The connecting plate has an installation groove formed according to the welding head body.

3. The diode-busbar welding head according to claim 1, characterized in that, The connecting plate has a round hole, and the fixing seat has a waist hole.

4. The diode-busbar welding head according to claim 2, characterized in that, The fixed base is also provided with a guide hole, and a guide shaft is fitted into the guide hole. The fixed base is installed on the output end of the telescopic power device through the guide shaft.

5. The diode-busbar welding head according to claim 4, characterized in that, The guide shaft is fitted with an elastic element, and both ends of the elastic element are connected to the fixed seat and the telescopic power device, respectively.

6. The diode-busbar welding head according to claim 4, characterized in that, A heat insulation plate is also installed between the fixed base and the output end of the telescopic power device, and the heat insulation plate has a through hole corresponding to the guide hole position.

7. The diode-busbar welding head according to claim 1, characterized in that, It also includes a back plate, the fixed end of the telescopic power device is installed on the back plate, and the back plate is also provided with waist holes.

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