Resonant plate water-cooling welding head

Abstract

The utility model relates to the technical field of welding, in particular to a resonant plate water-cooling welding head. The welding head comprises a welding head fixing plate and a welding part, the welding part is arranged at the bottom of the welding head fixing plate, a pipeline channel is arranged in the welding head fixing plate, a groove is formed in one side of the welding head fixing plate, and a resonance plate is laid in the groove. Cooling liquid can be injected through the pipeline channel arranged in the welding head fixing plate for circulating heat dissipation, and liquid circulating cooling of the welding part and the resonance plate arranged on the welding head fixing plate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a water-cooled welding head for a resonant plate. Background Technology

[0002] In the battery module manufacturing process, there is a process where busbars are used to connect the solder strips from multiple battery strings in parallel. This process employs an electromagnetic welding method using a welding head that generates a high-frequency alternating current for welding. During electromagnetic welding, the busbars and solder strips are fused together by the electromagnetic induction force generated by the alternating current in the welding head coil, causing frictional heat. However, during the welding process, the continuously generated high temperatures from the welding head can accumulate, leading to over-welding of the busbars and solder strips. This can degrade the battery module, and the resonant plate used to transmit and amplify electromagnetic energy to the welding head can also be damaged due to the high-frequency electromagnetic oscillations and energy conversion, resulting in a large amount of internal heat. Utility Model Content

[0003] In view of the problems in the prior art, the purpose of this invention is to provide a water-cooled welding head for resonant plates, which can cool down the welding head and the resonant plate, preventing component degradation and damage to the resonant plate.

[0004] Specifically, the resonant plate water-cooled welding head includes a welding head fixing plate and a welding part. The welding part is located at the bottom of the welding head fixing plate. The welding head fixing plate has a pipeline channel inside. A groove is opened on one side of the welding head fixing plate, and the resonant plate is laid in the groove.

[0005] Coolant can be added through the pipe channels inside the welding head fixing plate for circulating heat dissipation, thereby achieving liquid circulation cooling of the welding part and the resonant plate set on the welding head fixing plate.

[0006] Specifically, the welding part includes at least four equidistant magnetic conductors, and the welding part also includes an integral coil wound on the magnetic conductors, with the two ends of the coil connected to the positive and negative poles of the resonant plate respectively.

[0007] Optionally, the bottom of the welding head fixing plate is provided with at least one row of air blowing holes, with the air blowing direction of the air blowing holes facing the guide magnet position.

[0008] Optionally, the bottom of the welding head fixing plate is provided with at least two rows of air blowing holes. One row of air blowing holes corresponds to the magnetic conductor, and the other row of air blowing holes corresponds to the gap between the magnetic conductors. The air blowing direction of the air blowing holes is towards the position of the magnetic conductor.

[0009] Specifically, the air blowing hole is close to the magnetic conductor, and a negative pressure chamber is also provided inside the welding head fixing plate, which is connected to the air blowing hole.

[0010] The heat generated by the magnetic conductor and coil can be discharged from the welding part by a high flow of gas through the air hole at the bottom of the welding head fixing plate, thereby ensuring a stable working temperature of the welding part and thus ensuring the welding quality of the battery assembly.

[0011] Specifically, the welding head fixing plate is also equipped with a sealing plate, which is installed at the pipeline channel position of the welding head fixing plate.

[0012] Open pipeline channels can be closed by setting up sealing plates.

[0013] Furthermore, sealing rings are installed along the pipeline path.

[0014] By installing sealing rings along the pipeline path, the sealing plate can provide better sealing of the pipeline path and prevent coolant from overflowing.

[0015] In summary, the cooling fluid can be added through the pipe channels within the welding head fixing plate for circulating heat dissipation, achieving liquid circulation cooling of the welding section and the resonant plate mounted on the welding head fixing plate; the air vents at the bottom of the welding head fixing plate allow the heat generated by the magnetic conductor and coil to be expelled from the welding section using high-flow gas, thereby ensuring a stable operating temperature of the welding section and thus guaranteeing the welding quality of the battery assembly; the sealing plate can close the open pipe channels; and the sealing rings along the pipe paths provide better sealing of the pipe channels, preventing coolant overflow. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the resonant plate water-cooled welding head of this utility model;

[0017] Figure 2 This is a schematic diagram of the pipeline channel structure of this utility model;

[0018] Figure 3 This is a schematic diagram showing the installation position of the resonant plate of this utility model;

[0019] Figure 4 This is an enlarged schematic diagram of the welding part structure of this utility model;

[0020] Figure 5 This is a schematic cross-sectional view of the welding head fixing plate of this utility model.

[0021] Reference numerals: 10, sealing plate; 20, welding head fixing plate; 21, pipeline channel; 22, joint; 23, groove; 30, magnetic conductor; 31, fixing block; 32, air hole; 33, negative pressure chamber; 100, resonant plate. Detailed Implementation

[0022] The main purpose of this invention is to provide a water-cooled welding head for resonant plates, which can cool the welding head and the resonant plate to prevent degradation of the battery assembly and damage to the resonant plate.

[0023] according to Figure 1 and Figure 2 As shown, in this embodiment, the resonant plate water-cooled welding head includes a welding head fixing plate 20 and a welding part, which is located at the bottom of the welding head fixing plate 20. Since the heat generated by the welding part during operation is not easily dissipated, but the welding part needs to continuously generate high temperature, the temperature of the welding part continues to accumulate, causing the battery module to over-weld. Therefore, a pipeline channel 21 is provided inside the welding head fixing plate 20, and a sealing ring (not shown in the figure) is installed on the pipeline path of the pipeline channel 21. A sealing plate 10 is also installed on the welding head fixing plate, and the sealing plate 10 is installed at the position of the pipeline channel 21 against the sealing ring. The pipeline channel 21 also includes an input end and an output end located on one side of the welding head fixing plate 20, and a connector 22 is installed on both the input end and the output end. By providing a sealed pipeline channel 21 on the welding head fixing plate 20, coolant can be added inside the welding head fixing plate 20. The heat of the welding part can be continuously carried out of the welding part by the liquid circulation, thereby ensuring the welding quality of the battery module.

[0024] according to Figure 3 As shown, a groove 23 is provided on the side of the welding head fixing plate 20 with the joint 22. A resonant plate 100 is installed in the groove 23. The groove 23 is also filled with a colloid with waterproof and heat dissipation effects. In this embodiment, the colloid is thermally conductive silicone grease. The colloid can seal the resonant plate 100 in the groove 23. By placing the resonant plate 100 in the groove 23 of the welding head fixing plate 20, the welding head fixing plate 20 can dissipate heat to the welding part through the pipe channel 21 using liquid circulation, while also dissipating heat to the resonant plate 100, ensuring a stable working temperature of the resonant plate 100, and thus ensuring the continuous use of the resonant plate 100.

[0025] according to Figure 3 and Figure 4 As shown, the welding part consists of a magnetic conductor 30, a coil (not shown in the figure), and a ceramic plate (not shown in the figure). In this embodiment, there are 10 magnetic conductors 30 installed at the bottom of the welding head fixing plate 20. The coil is wound around each magnetic conductor 30 as an integral unit. Two fixing blocks 31 are installed on one side of the welding head fixing plate 20 with a groove 23. The fixing blocks 31 are located below the groove 23. The two ends of the coil are fixed to the welding head fixing plate 20 by the fixing blocks 31 and connected to the positive and negative poles of the resonant plate 100. An integral ceramic plate is also installed at the bottom of the welding head fixing plate 20 below the magnetic conductors 30. The fixing blocks 31 can fix the two ends of the coil, which is convenient for potting and sealing.

[0026] according to Figure 4 and Figure 5 As shown, to ensure better heat dissipation of the welding section, two rows of air holes 32 are provided at the bottom of the welding head fixing plate 20. The air blowing direction of the air holes 32 is towards the magnet 30. A negative pressure chamber 33 is also provided inside the welding head fixing plate 20, and the negative pressure chamber 33 is connected to the air holes 32. One row of air holes 32 has 10 equidistant holes corresponding to each magnet, mainly blowing air to dissipate heat near the middle part of the magnet 30. The other row of air holes 32 has 9 equidistant holes corresponding to the gap between the magnets 30, mainly blowing air to dissipate heat near the gap between the magnets 30. Through the air holes 32 provided at the bottom of the welding head fixing plate 20, the magnets 30 and coils in the welding section can be cooled by blowing air, so that the welding section cools down more quickly, thereby ensuring a stable working temperature of the welding section and thus ensuring the welding quality of the battery assembly.

[0027] 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.

[0028] 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 water-cooled welding head for a resonant plate, comprising a welding head fixing plate and a welding part, wherein the welding part is disposed at the bottom of the welding head fixing plate, characterized in that, The welding head fixing plate is provided with a pipeline channel, and a groove is opened on one side of the welding head fixing plate, and a resonant plate is laid in the groove.

2. The water-cooled welding head for the resonant plate according to claim 1, characterized in that, The welding part includes at least four equidistant magnetic conductors, and the welding part also includes an integral coil wound on the magnetic conductors, with the two ends of the coil connected to the positive and negative poles of the resonant plate, respectively.

3. The water-cooled welding head for the resonant plate according to claim 2, characterized in that, The bottom of the welding head fixing plate is provided with at least one row of air blowing holes, and the air blowing direction of the air blowing holes is towards the position of the magnetic conductor.

4. The water-cooled welding head for the resonant plate according to claim 2, characterized in that, The bottom of the welding head fixing plate has at least two rows of air blowing holes. One row of air blowing holes corresponds to the magnetic conductor, and the other row of air blowing holes corresponds to the gap between the magnetic conductors. The air blowing direction of the air blowing holes is towards the position of the magnetic conductor.

5. The water-cooled welding head for the resonant plate according to claim 3 or 4, characterized in that, The air blowing hole is close to the magnetic conductor, and a negative pressure cavity is also provided inside the welding head fixing plate, which is connected to the air blowing hole.

6. The water-cooled welding head for resonant plates according to claim 1, characterized in that, The welding head fixing plate is also equipped with a sealing plate, which is installed at the pipeline channel position of the welding head fixing plate.

7. The water-cooled welding head for a resonant plate according to claim 1, characterized in that, The pipeline path is equipped with a sealing ring.

Images