Copper nozzle special for welding of busbar of new energy battery

Abstract

The utility model discloses a new energy battery Busbar welding special copper mouth relates to welding tool technical field, it includes the copper mouth body of integrated processing shaping, the copper mouth body is equipped with the protection gas interface, dust extraction pipe interface and with protection gas interface intercommunication's protection gas inlet passage. Compared with prior art, the utility model can solve the copper mouth structure of current when welding, protection gas can not enter the copper mouth inside welding position, and the copper mouth inside welding produces splash and smoke also can not be extracted to lead to in the welding process, and the problem of blackening or false welding of weld seam will happen from time to time.

Description

Technical Field

[0001] This utility model relates to the field of welding tool technology, and in particular to a copper nozzle specifically for welding new energy battery busbars. Background Technology

[0002] Busbar welding is a crucial step in the manufacturing process of new energy batteries. It typically employs laser welding, where a copper nozzle presses a metal connector onto the battery terminal block, and a laser beam from a laser emitter or galvanometer performs the welding. This process is widely used in new energy battery production and is considered a relatively advanced and mature technology. Currently used copper nozzle structures include... Figure 1 and Figure 2 As shown, the device includes a copper nozzle body, which comprises a cylindrical portion 101 and a conical portion 102 arranged vertically. The cylindrical portion 101 is provided with a square protrusion 103, which has a mounting hole. When welding, the shielding gas cannot enter the welding position inside the copper nozzle, and the spatter and fumes generated during welding inside the copper nozzle cannot be extracted. This results in blackening of the weld or incomplete welding from time to time during the welding process. Utility Model Content

[0003] The purpose of this invention is to provide a special copper nozzle for welding busbars of new energy batteries. It can solve the problems of shielding gas not being able to enter the welding position inside the copper nozzle during welding, and the spatter and smoke generated during welding inside the copper nozzle not being able to be extracted, which leads to the problem of blackening or poor welding of the weld from time to time during the welding process.

[0004] To solve the above problems, the technical solution adopted by this utility model is: this special copper nozzle for welding Busbars of new energy batteries includes an integrally formed copper nozzle body, the copper nozzle body is provided with a protective gas interface, a dust extraction pipe interface and a protective gas inlet channel connected to the protective gas interface.

[0005] A more specific technical solution than the above-mentioned technical solution is that the protective gas interface and the dust extraction pipe interface are disposed opposite to each other on both sides of the copper nozzle body.

[0006] Furthermore, the upper part of the copper nozzle body is provided with a square protrusion.

[0007] Furthermore, the inner diameter of the copper nozzle body gradually decreases from the location where the protrusion is located to the bottom of the copper nozzle body.

[0008] Furthermore, the protective gas inlet is located on the protrusion.

[0009] Furthermore, the protective gas inlet channel is located inside the side wall of the copper nozzle body, and the bottom inner wall of the copper nozzle body is provided with an outlet that communicates with the protective gas inlet channel.

[0010] Furthermore, a horizontal air outlet pipe is provided at the bottom of the copper nozzle body, and one end of the air outlet pipe is inserted into the protective gas inlet channel from the air outlet.

[0011] Furthermore, the dust extraction pipe interface is located on the side wall of the copper nozzle body and below the protrusion.

[0012] Furthermore, the protrusion is provided with mounting holes.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] In use, the protective gas tube is connected to the protective gas inlet, and the dust extraction tube is connected to the dust extraction tube inlet. The protective gas enters the internal welding position of the copper nozzle body through the protective gas inlet channel, and the spatter and fumes generated during welding are drawn away by the dust extraction tube through the dust extraction tube inlet. The copper nozzle structure of this invention integrates the functions of blowing protective gas and dust extraction, which can prevent phenomena such as blackening of the weld or incomplete welding from occurring during Busbar welding. Attached Figure Description

[0015] Figure 1 This is a diagram of the shape of a copper nozzle in existing technology;

[0016] Figure 2 This is a diagram of the internal structure of a copper nozzle in existing technology;

[0017] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 4 This is a perspective view of the present invention from another perspective;

[0019] Figure 5 This is the front view of this utility model;

[0020] Figure 6 yes Figure 5 Sectional view at point AA. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model; however, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] like Figures 3 to 6The copper nozzle shown is a special copper nozzle for welding Busbars of new energy batteries. It includes a copper nozzle body 1 formed by integral processing. The copper nozzle body 1 is provided with a protective gas interface 2, a dust extraction pipe interface 3 and a protective gas inlet channel 4 connected to the protective gas interface 2. The protective gas interface 2 and the dust extraction pipe interface 3 are located opposite each other on both sides of the copper nozzle body 1.

[0023] The upper part of the copper nozzle body 1 is provided with a square protrusion 5, and the protrusion 5 is provided with a mounting hole 7; the protective gas interface 2 is provided on the protrusion 5; the dust extraction pipe interface 3 is provided on the side wall of the copper nozzle body 1 and is located below the protrusion 5.

[0024] The inner diameter of the copper nozzle body 1 gradually decreases from the position where the protrusion 5 is located to the bottom of the copper nozzle body 1.

[0025] The protective gas inlet channel 4 is located inside the side wall of the copper nozzle body 1. The bottom inner wall of the copper nozzle body 1 is provided with an outlet that communicates with the protective gas inlet channel 4. A horizontal outlet pipe 6 is provided at the bottom of the copper nozzle body 1. One end of the outlet pipe 6 is inserted into the protective gas inlet channel 4 from the outlet, and the other end faces the middle of the copper nozzle body 1.

[0026] In use, the protective gas pipe is connected to the protective gas inlet 2, and the dust extraction pipe is connected to the dust extraction pipe inlet 3. The protective gas enters the welding position inside the copper nozzle body 1 through the protective gas inlet channel 4. The spatter and fumes generated during welding are drawn away by the dust extraction pipe through the dust extraction pipe inlet 3. The copper nozzle structure of this invention integrates the functions of blowing protective gas and dust extraction, which can prevent phenomena such as blackening of the weld or incomplete welding from occurring during Busbar welding.

[0027] The protective gas interface 2 and the dust extraction pipe interface 3 are located opposite each other on both sides of the copper nozzle body 1 to avoid interference between the pipes when blowing protective gas and extracting dust; the air outlet pipe 6 can concentrate the protective gas to the welding position, enhancing the efficiency of the protective gas; the protrusion 5 is provided with a mounting hole 7, so that this utility model can be fixed to the welding fixture with screws.

Claims

1. A copper nozzle specifically for welding busbars in new energy batteries, characterized in that: It includes an integrally formed copper nozzle body, which is provided with a protective gas interface, a dust extraction pipe interface, and a protective gas inlet channel connected to the protective gas interface.

2. The copper nozzle for welding busbars in new energy batteries according to claim 1, characterized in that: The protective gas inlet and the dust extraction pipe inlet are located opposite each other on both sides of the copper nozzle body.

3. The copper nozzle for welding busbars in new energy batteries according to claim 1 or 2, characterized in that: The upper part of the copper nozzle body is provided with a square protrusion.

4. The copper nozzle for welding busbars in new energy batteries according to claim 3, characterized in that: The inner diameter of the copper nozzle body gradually decreases from the location where the protrusion is located to the bottom of the copper nozzle body.

5. The copper nozzle for welding busbars in new energy batteries according to claim 4, characterized in that: The protective gas inlet is located on the protrusion.

6. The copper nozzle for welding busbars in new energy batteries according to claim 5, characterized in that: The protective gas inlet channel is located inside the side wall of the copper nozzle body, and the bottom inner wall of the copper nozzle body is provided with an outlet that communicates with the protective gas inlet channel.

7. The copper nozzle for welding busbars in new energy batteries according to claim 6, characterized in that: The bottom of the copper nozzle body is provided with a horizontal air outlet pipe, one end of which is inserted into the protective gas inlet channel from the air outlet.

8. The copper nozzle for welding busbars in new energy batteries according to claim 7, characterized in that: The dust extraction pipe interface is located on the side wall of the copper nozzle body and below the protrusion.

9. The copper nozzle for welding busbars in new energy batteries according to claim 8, characterized in that: The protrusion is provided with mounting holes.

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