Photovoltaic module integrated welding jig

Abstract

The utility model relates to the technical field of integrated welding jigs, in particular to a photovoltaic module integrated welding jig which comprises a copper bottom plate positioning plate, a first groove is formed in the upper surface of the copper bottom plate positioning plate, a copper bottom plate is arranged in the first groove, and a DBC substrate is fixedly arranged on the upper surface of the copper bottom plate. A plurality of contact pins are fixedly arranged on the upper surface of the DBC substrate, and a DBC fixing frame is arranged in the first groove. The frame is made of high-strength aluminum alloy materials, the overall strength of the jig is guaranteed, the weight is reduced, the jig is convenient to operate and move, the frame has enough rigidity, the stability of the jig in the welding process can be guaranteed, a plurality of contact pins are used for assisting a part to be welded, and the welding efficiency is improved. And the position of the to-be-welded part on the jig can be ensured to be accurate, so that the welding efficiency and the production quality and consistency of the photovoltaic module are improved.

Description

Technical Field

[0001] This utility model relates to the field of integrated welding fixture technology, specifically to an integrated welding fixture for photovoltaic modules. Background Technology

[0002] With the continuous advancement of electronic technology, the packaging requirements for power devices are becoming increasingly stringent. Insulated gate bipolar transistors (IGBTs), as an important power semiconductor device, are widely used in many fields, such as industrial motor drives, photovoltaic inverters, and electric vehicles. These applications place higher demands on the packaging of IGBT modules. For example, in photovoltaic inverters, with the continuous increase in single-unit power and the diversification of topologies, the packaging needs to better adapt to flexibility and customization requirements. Therefore, in order to better adapt to complex circuit topologies and chip layout requirements, higher precision and more efficient integrated soldering fixtures are needed.

[0003] Traditional integrated welding fixtures are not precise enough in positioning the parts to be welded. When welding some small or high-precision workpieces, such as welding electronic chips to circuit boards, the positioning is prone to large errors. At the same time, there may be large gaps between the positioning pins and positioning holes of some fixtures, which will result in the inaccurate placement of the parts to be welded on the fixture. The welded products may have quality problems such as pin misalignment and short circuits. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a photovoltaic module integrated welding fixture, which can effectively solve the problem of insufficient precision in the positioning of welding components in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides an integrated welding fixture for photovoltaic modules, including a copper base plate positioning plate;

[0007] The upper surface of the copper base plate positioning plate is provided with a first groove, and a copper base plate is provided in the first groove. A DBC substrate is fixedly provided on the upper surface of the copper base plate, and multiple pins are fixedly provided on the upper surface of the DBC substrate. A DBC fixing frame is provided in the first groove. The upper surface of the copper base plate positioning plate is provided with two second grooves, and pin fixing plates are provided in the two second grooves. Two bearing brackets are fixedly connected to the bottom surface of the pin fixing plates. A pin anti-detachment plate is provided between the inner walls of the two bearing brackets. The upper surface of the pin fixing plate is provided with a third groove, and the inner bottom surface of the third groove is provided with a first through groove and a second through groove. Multiple through holes are provided on the bottom surface of the pin fixing plate and the upper surface of the pin anti-detachment plate.

[0008] According to the above-mentioned photovoltaic module integrated welding fixture, the DBC fixing frame is located above the copper base plate, and the plurality of pins are located inside the DBC fixing frame.

[0009] According to the above-mentioned photovoltaic module integrated welding fixture, the pin anti-detachment plate is located between the DBC fixing frame and the pin fixing plate, and the multiple through holes on the upper surface of the pin anti-detachment plate correspond to the multiple pins respectively.

[0010] According to the above-mentioned photovoltaic module integrated welding fixture, the two supporting brackets are respectively located on both sides of the pin anti-detachment plate, and the multiple through holes on the bottom surface of the pin fixing plate correspond to multiple pins respectively.

[0011] According to the aforementioned photovoltaic module integrated welding fixture, the bottom surface of the copper base plate is in contact with the inner bottom surface of the first groove.

[0012] According to the above-mentioned photovoltaic module integrated welding fixture, the side walls at both ends of the pin fixing plate are respectively attached to the inner walls of the two second grooves.

[0013] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0014] This utility model uses a high-strength aluminum alloy frame, which ensures the overall strength of the fixture while reducing its weight, making it easy to operate and move. The frame has sufficient rigidity to withstand various stresses during the welding process, ensuring the stability of the fixture. At the same time, multiple pins are used to assist the parts to be welded, ensuring that the parts to be welded are accurately positioned on the fixture, thereby improving welding efficiency and the production quality and consistency of photovoltaic modules. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the present invention;

[0017] Figure 2 This is an exploded view of the present invention from another perspective;

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention.

[0019] Reference numerals in the attached diagram: 1. Copper base plate positioning plate; 2. Groove No. 1; 3. Copper base plate; 4. DBC substrate; 5. Pin; 6. DBC fixing frame; 7. Groove No. 2; 8. Pin fixing plate; 9. Bearing bracket; 10. Pin anti-detachment plate; 11. Groove No. 3; 12. Through slot No. 1; 13. Through slot No. 2; 14. Through hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Example: Refer to Figures 1 to 3 A photovoltaic module integrated welding fixture includes a copper base plate positioning plate 1, a first groove 2 on the upper surface of the copper base plate positioning plate 1, a copper base plate 3 inside the first groove 2, a DBC substrate 4 fixedly mounted on the upper surface of the copper base plate 3, a plurality of pins 5 fixedly mounted on the upper surface of the DBC substrate 4, a DBC fixing frame 6 inside the first groove 2, two second grooves 7 on the upper surface of the copper base plate positioning plate 1, a pin fixing plate 8 inside the two second grooves 7, two bearing brackets 9 fixedly connected to the bottom surface of the pin fixing plate 8, a pin anti-detachment plate 10 between the inner walls of the two bearing brackets 9, a third groove 11 on the upper surface of the pin fixing plate 8, a first through groove 12 and a second through groove 13 on the inner bottom surface of the third groove 11, a plurality of through holes 14 on the bottom surface of the pin fixing plate 8 and the upper surface of the pin anti-detachment plate 10, and the copper base plate positioning plate 1, the pin anti-detachment plate 10, the DBC fixing frame 6 and the pin fixing plate 8 are all made of aluminum alloy.

[0023] The DBC fixing frame 6 is located above the copper base plate 3. Multiple pins 5 are located inside the DBC fixing frame 6. The DBC fixing frame is used to fix the position of the DBC substrate 4. The pin anti-detachment plate 10 is located between the DBC fixing frame 6 and the pin fixing plate 8. Multiple through holes 14 on the upper surface of the pin anti-detachment plate 10 correspond to multiple pins 5. Two support brackets 9 are located on both sides of the pin anti-detachment plate 10. Multiple through holes 14 on the bottom surface of the pin fixing plate 8 correspond to multiple pins 5. The bottom surface of the copper base plate 3 is in contact with the inner bottom surface of the first groove 2. The copper base plate positioning plate 1 is used to limit the position of the copper base plate 3, thereby improving the precision of the fixture welding. The side walls at both ends of the pin fixing plate 8 are in contact with the inner walls of the two second grooves 7.

[0024] The working principle of this utility model is as follows: the copper base plate 3 and the DBC substrate 4 are welded together by solder pads, while the pins 5 and the DBC substrate 4 are welded together by solder paste. In use, the grooves on the surface of the welding fixture are used to initially position the components to be welded. At the same time, with the help of multiple pins 5 and fixtures, the photovoltaic module to be welded can be precisely positioned, ensuring that the photovoltaic module to be welded is accurately positioned on the fixture. This positioning method helps to maintain a uniform spacing between the components to be welded during the welding process, thereby improving the production quality and consistency of the photovoltaic module. At the same time, the pins 5 can also be used to connect the testing equipment and the photovoltaic module. In the testing fixture, the pins 5 can contact the positive and negative terminals of the photovoltaic module or specific test points, accurately transmitting the test signal to the inside of the module, and feeding back the output signal of the module to the testing equipment, thereby achieving accurate evaluation of the electrical performance of the photovoltaic module.

[0025] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A photovoltaic module integrated soldering fixture, characterized by, Include: Copper bottom plate positioning plate (1); The upper surface of the copper bottom plate positioning plate (1) is provided with a No. 1 recess (2), the No. 1 recess (2) is provided with a copper bottom plate (3), the upper surface of the copper bottom plate (3) is fixedly provided with a DBC substrate (4), the upper surface of the DBC substrate (4) is fixedly provided with a plurality of pins (5), the No. 1 recess (2) is provided with a DBC fixed frame (6), the upper surface of the copper bottom plate positioning plate (1) is provided with two No. 2 recesses (7), two No. 2 recesses (7) are provided with a pin fixed plate (8), the bottom surface of the pin fixed plate (8) is fixedly connected with two bearing supports (9), the inner wall between the two bearing supports (9) is provided with a pin anti-off plate (10), the upper surface of the pin fixed plate (8) is provided with a No. 3 recess (11), the inner bottom surface of the No. 3 recess (11) is provided with a No. 1 through slot (12) and a No. 2 through slot (13), the bottom surface of the pin fixed plate (8) and the upper surface of the pin anti-off plate (10) are provided with a plurality of through holes (14).

2. The photovoltaic module integrated soldering fixture of claim 1, wherein, The DBC fixed frame (6) is located above the copper bottom plate (3), and a plurality of pins (5) are located in the DBC fixed frame (6).

3. The photovoltaic module integrated soldering fixture of claim 1, wherein, The pin anti-off plate (10) is located between the DBC fixed frame (6) and the pin fixed plate (8), and the plurality of through holes (14) on the upper surface of the pin anti-off plate (10) correspond to the plurality of pins (5) respectively.

4. The photovoltaic module integrated soldering fixture of claim 1, wherein, Two bearing supports (9) are located on both sides of the pin anti-off plate (10), and the plurality of through holes (14) on the bottom surface of the pin fixed plate (8) correspond to the plurality of pins (5) respectively.

5. The photovoltaic module integrated soldering fixture of claim 1, wherein, The bottom surface of the copper bottom plate (3) is attached to the inner bottom surface of the No. 1 recess (2).

6. The photovoltaic module integrated soldering fixture of claim 1, wherein, The side walls of both ends of the pin fixed plate (8) are attached to the inner walls of the two No. 2 recesses (7) respectively.

Images