A welding device for a battery string

Abstract

This utility model relates to the field of battery welding technology, specifically to a welding device for series connection of battery packs, comprising: a dust collection assembly consisting of a drive motor, a fixed column, a suction head, a guide tube, a limiting ring, and a collector; the output shaft of the rotating motor is fixedly connected to the fixed column, the fixed column is fixedly connected to the suction head, and the suction head is connected to the guide tube. In this battery pack series connection welding device, when the drive motor starts, its output shaft rotates. Since the output shaft is fixed to the fixed column, it drives the fixed column to rotate as well. The rotation of the fixed column drives the suction head to rotate, allowing the suction head to change its suction direction within a certain range, expanding the dust collection coverage area. Dust and debris sucked in from the suction head and transported through the guide tube enter the collector through the guide tube.

Description

Technical Field

[0001] This utility model relates to the field of battery welding technology, specifically to a welding device for series connection of battery packs. Background Technology

[0002] With the rapid development of technology, the demand for batteries from various electronic devices, electric vehicles, energy storage systems, and other applications is increasing daily. A single battery often cannot meet the high voltage and large capacity requirements of these devices. Therefore, it is necessary to connect multiple battery cells in series to form a battery pack to improve the output voltage and overall performance of the battery pack.

[0003] During the charging process of electric vehicles, the quality of the series welding of the battery pack directly affects charging efficiency and safety. Reliable welding connections ensure that the current is evenly distributed to each battery cell, avoiding localized overheating and overcharging, and extending the lifespan of the battery pack.

[0004] The utility model application with application number CN202223199343.4 relates to the field of battery assembly technology, specifically a battery pack welding and fixing device. It includes two clamping plates and two battery pack supports for fixing multiple batteries. Each battery pack support has at least two sets of limiting holes spaced apart. Each limiting hole set includes at least two spaced-apart limiting holes, and one side of each battery pack support has a limiting member that partially blocks the opening of the limiting holes. The opposite ends of the multiple batteries can extend into the limiting holes on the two battery pack supports and abut against the limiting members. The positive and negative terminals of the batteries in adjacent limiting hole sets are arranged in the same or alternating manner. The two clamping plates are used to press welding pieces of the multiple batteries connected in parallel or series onto one side of the two battery pack supports. Both clamping plates have welding holes corresponding one-to-one with the limiting holes. This device solves the problems of poor stability and complex clamping processes in existing fixtures, which affect the efficiency of battery pack welding and assembly.

[0005] The aforementioned patent uses the welding head and welding hole in the same position to facilitate welding of electrodes and welding plates. However, during the series connection of batteries, baffles need to be installed to block the top and bottom of the battery to prevent multiple sets of battery electrodes from being exposed, resulting in poor conductivity.

[0006] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this invention is to provide a welding device for battery pack series connection that can effectively solve the above-mentioned technical problems.

[0008] To achieve the purpose of this utility model, the following technical solution is adopted:

[0009] A welding apparatus for connecting battery packs in series includes: a platform, a clamping assembly, and a dust extraction assembly;

[0010] The dust collection assembly consists of a drive motor, a fixed column, a suction head, a guide tube, a limiting ring, and a collector. The output shaft of the rotating motor is fixedly connected to the fixed column, the fixed column is fixedly connected to the suction head, the suction head is connected to the guide tube, the guide tube is slidably connected to the limiting ring, and the collector is fixedly connected to the guide tube and is also connected to the guide tube.

[0011] Furthermore, the clamping assembly includes a first cylinder, a second cylinder, a third cylinder, a limiting platform, a fourth cylinder, a fixed platform, a rotating rod, and a driven rod; the platform is fixedly connected to the first cylinder, the second cylinder, the third cylinder, and the fourth cylinder, and the third cylinder is fixedly connected to the limiting platform. The output end of the third cylinder is provided with a forming head. The rotating rod is rotatably connected to the fixed platform. The driven rod is rotatably connected to the rotating rod, and one end of the driven rod is fixedly connected to the output end of the fourth cylinder.

[0012] Furthermore, the collector is equipped with a vacuum pump.

[0013] Furthermore, a welding head is fixedly installed at the end of the driven rod away from the output end of the third cylinder.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a welding device for series connection of battery packs. When the drive motor is started, its output shaft will rotate. Since the output shaft is fixed to the fixed column, it will drive the fixed column to rotate together. The rotation of the fixed column will drive the suction head to rotate, so that the suction head can change the suction direction within a certain range and expand the dust collection coverage. When the suction head is working, the dust and debris sucked in will enter the guide tube through this connecting channel. The limiting ring plays a role in limiting and guiding the guide tube, so that the guide tube can slide relative to the limiting ring to adapt to the changes in the position and angle of the suction head. The dust and debris sucked in from the suction head and transmitted through the guide tube will enter the collector through the guide tube. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] Figure 1 This is a schematic diagram of the structure of a welding device for connecting battery packs in series according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a welding device for connecting battery packs in series according to the present invention;

[0018] Figure 3This is a schematic diagram from another angle of the welding device for series connection of battery packs according to the present invention;

[0019] Figure 4 This is a schematic diagram of the dust collection component of a welding device for connecting battery packs in series according to this utility model.

[0020] In the diagram: 1. Base; 2. Placement rack; 3. Platform; 4. Clamping assembly; 41. First cylinder; 42. Second cylinder; 43. Third cylinder; 44. Limiting platform; 45. Fourth cylinder; 46. Fixed platform; 47. Rotating rod; 48. Driven rod; 5. Dust collection assembly; 51. Drive motor; 52. Fixed column; 53. Suction head; 54. Guide tube; 55. Limiting ring; 56. Collector. Detailed Implementation

[0021] 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. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 4 As shown, a welding device for connecting battery packs in series includes: a platform 3, a clamping assembly 4, and a dust extraction assembly 5.

[0024] The clamping assembly 4 includes a first cylinder 41, a second cylinder 42, a third cylinder 43, a limiting platform 44, a fourth cylinder 45, a fixed platform 46, a rotating rod 47, and a driven rod 48. The platform 3 is fixedly connected to the first cylinder 41, the second cylinder 42, the third cylinder 43, and the fourth cylinder 45. The third cylinder 43 is fixedly connected to the limiting platform 44. The output end of the third cylinder 43 is provided with a forming head. The rotating rod 47 is rotatably connected to the fixed platform 46. The driven rod 48 is rotatably connected to the rotating rod 47. One end of the driven rod 48 is fixedly connected to the output end of the fourth cylinder 45. A welding head is fixedly installed on the end of the driven rod 48 away from the output end of the third cylinder 43. Clamping plates are installed at the output ends of the first cylinder 41 and the second cylinder 42. When the two sets of cylinders are started, the clamping plates are pushed and fixed to the surface of the sheet metal part from both sides. When the third cylinder 43 is started, its output end will extend or retract. The movement of the output end drives the forming head to move together. The forming head acts on the workpiece to complete the corresponding forming operation. The driven rod 48 moves with the movement of the output end of the fourth cylinder 45. Since the other end of the driven rod 48 is rotatably connected to the rotating rod 47, the movement of the driven rod 48 will apply a force to the rotating rod 47, thereby causing the rotating rod 47 to rotate around the fixed platform 46, driving the welding head to move up and down, and controlling the welding head to perform welding operations on the weld point.

[0025] The vacuuming assembly 5 consists of a drive motor 51, a fixed post 52, a suction head 53, a guide tube 54, a limiting ring 55, and a collector 56. The output shaft of the drive motor is fixedly connected to the fixed post 52, the fixed post 52 is fixedly connected to the suction head 53, the suction head 53 is connected to the guide tube 54, the guide tube 54 is slidably connected to the limiting ring 55, and the collector 56 is fixedly connected to the guide tube 54 and is also connected to the guide tube 54. The collector 56 contains a vacuum pump. When the drive motor 51 starts, its output shaft rotates. Because the output shaft is connected to the fixed post... Since 52 is fixed, it will drive the fixed column 52 to rotate together. The rotation of the fixed column 52 will drive the suction head 53 to rotate, so that the suction head 53 can change the suction direction within a certain range and expand the dust collection coverage. When the suction head 53 is working, the dust and debris sucked in will enter the guide tube 54 through this connecting channel. The limiting ring 55 plays a role in limiting and guiding the guide tube 54, so that the guide tube 54 can slide relative to the limiting ring 55 to adapt to the changes in the position and angle of the suction head 53. The dust and debris sucked in from the suction head 53 and transported through the guide tube 54 will enter the collector 56 through the guide tube 54.

[0026] As a supplement: Collector 56 serves as a container for storing dust and debris. Different types of vacuum pumps operate based on different gas transfer principles. For example, positive displacement vacuum pumps (such as rotary vane pumps and reciprocating pumps) draw in, compress, and discharge gas outside the pump by changing the volume of the pump chamber; momentum transfer pumps (such as molecular pumps) use high-speed rotating vanes or rotors to directionally transfer gas molecules, thereby achieving the purpose of pumping.

[0027] Working principle:

[0028] Clamping plates are installed at the output ends of the first cylinder 41 and the second cylinder 42. When the two sets of cylinders are started, the clamping plates are pushed and fixed to the surface of the sheet metal from both sides. When the third cylinder 43 is started, its output end will extend or retract. The movement of the output end drives the forming head to move together. The forming head acts on the workpiece to complete the corresponding forming operation. The driven rod 48 will move with the movement of the output end of the fourth cylinder 45. Since the other end of the driven rod 48 is rotatably connected to the rotating rod 47, the movement of the driven rod 48 will apply a force to the rotating rod 47, thereby causing the rotating rod 47 to rotate around the fixed platform 46, driving the welding head to move up and down, controlling the welding head to perform welding operations on the weld point. When the drive motor 51 is started, its output shaft will rotate. Since the output shaft is fixed to the fixed column 52, it will drive the fixed column 52 to rotate together. The rotation of the fixed column 52 will drive the suction head 53 to rotate, causing the suction head 53 to rotate. 3. It can change the suction direction within a certain range and expand the dust collection coverage. When the suction head 53 is working, the dust and debris sucked in will enter the guide tube 54 through this connecting channel. The limiting ring 55 plays a limiting and guiding role for the guide tube 54, so that the guide tube 54 can slide relative to the limiting ring 55 to adapt to the changes in the position and angle of the suction head 53. The dust and debris sucked in from the suction head 53 and transported through the guide tube 54 will enter the collector 56 through the guide tube 54.

[0029] All standard parts used in this utility model can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Contents not described in detail in this specification belong to prior art known to those skilled in the art. It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims of this utility model.

Claims

1. A welding device for series connection of battery packs, characterized in that, include: Platform, clamping components, and dust collection components; The dust collection assembly consists of a drive motor, a fixed column, a suction head, a guide tube, a limiting ring, and a collector. The output shaft of the drive motor is fixedly connected to the fixed column, the fixed column is fixedly connected to the suction head, the suction head is connected to the guide tube, the guide tube is slidably connected to the limiting ring, and the collector is fixedly connected to the guide tube and is also connected to the guide tube.

2. The welding apparatus for series connection of battery packs as described in claim 1, characterized in that, The clamping assembly includes a first cylinder, a second cylinder, a third cylinder, a limiting platform, a fourth cylinder, a fixed platform, a rotating rod, and a driven rod. The platform is fixedly connected to the first cylinder, the second cylinder, the third cylinder, and the fourth cylinder, and the third cylinder is fixedly connected to the limiting platform. The output end of the third cylinder is provided with a forming head. The rotating rod is rotatably connected to the fixed platform. The driven rod is rotatably connected to the rotating rod, and one end of the driven rod is fixedly connected to the output end of the fourth cylinder.

3. The welding apparatus for series connection of battery packs as described in claim 1, characterized in that, The collector is equipped with a vacuum pump.

4. The welding apparatus for series connection of battery packs as described in claim 2, characterized in that, A welding head is fixedly installed at the end of the driven rod away from the output end of the third cylinder.

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