A battery pack welding nickel tab cascade guide assembly

Abstract

The utility model discloses a kind of battery pack welding nickel sheet cascading guide components, belong to battery pack welding technical field, including frame and batten, multiple batten is fixedly connected on connecting frame symmetrically, and the spacing of the adjacent two battens is slightly less than the diameter of battery, and the width of the batten is greater than the spacing of the adjacent two batteries, the connecting frame is parallelly sleeved on frame, and multiple batten is parallel to the bottom plate of frame, and the frame is slidingly connected on bottom support;Still include positioning assembly, for limiting the sliding distance of frame;And resist pressure component, for making multiple batten adhere on battery pack;The utility model can avoid position deviation during nickel sheet welding process.

Description

Technical Field

[0001] This utility model belongs to the field of battery pack welding technology, and in particular relates to a cascaded guide assembly for welding nickel sheets in battery packs. Background Technology

[0002] Nickel sheet cascaded guidance is a precision technology used in battery pack assembly to connect nickel sheets to the individual battery tabs along a predetermined path through specific structural design and welding processes, forming a series / parallel conductive path. During the welding process, it is necessary to ensure that the nickel sheets are aligned with the battery tabs to reduce the risk of increased resistance or poor soldering caused by welding misalignment. However, during the welding process, spot welding needs to continuously contact and separate from the nickel sheets, which can easily cause the nickel sheets to move and gradually deviate from the battery tabs. A structure that can effectively avoid nickel sheet movement is proposed. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a cascaded guide assembly for welding nickel sheets in battery packs, thus solving the aforementioned problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a cascaded guide assembly for welding nickel sheets in a battery pack, comprising a frame and pressure strips, wherein multiple pressure strips are symmetrically fixedly connected to a connecting frame, and the distance between two adjacent pressure strips is slightly smaller than the diameter of the battery, and the width of the pressure strip is greater than the distance between two adjacent batteries. The connecting frame is parallel to the frame, and the multiple pressure strips are parallel to the bottom plate of the frame. The frame is slidably connected to a base support. The assembly also includes a positioning component for limiting the sliding distance of the frame, and a pressing component for pressing the multiple pressure strips tightly against the battery pack.

[0005] Beneficial effects

[0006] This utility model provides a cascaded guide assembly for welding nickel sheets in a battery pack, which has the following advantages compared with the prior art:

[0007] 1. The user places the neatly arranged battery pack onto the frame base plate. Then, the user starts the motor, causing the cam A, which is fixedly connected to the output shaft, to start rotating at a constant speed. At this time, the protrusion on the cam A gradually contacts the cam. During this process, since both the cam and the contact surface of the cam A are curved, after the cam contacts the cam A, the motor is started again, which allows the cam to slide downward and stretch the spring fixedly connected to it, putting it in a deformed state. This allows the cam to slide upward quickly to its reset state after the cam A rotates and resets. When the central axis of the cam A and the central axis of the cam are in the same vertical plane, the multiple pressure strips set on it begin to contact the battery pack and press the nickel sheet on the battery pack, thereby positioning the nickel sheet at multiple points. This prevents the nickel sheet from shifting during the welding process, which would prevent it from being accurately welded to the center of the battery tab. At this time, the welding points of the battery are all between two adjacent pressure strips. At the same time, since the two pressure strips have a certain distance, it can effectively avoid affecting the welding of the nickel sheet.

[0008] 2. During the welding process, after the first row of battery packs is welded, the user can push the frame. At this time, since the arc block is attached to the arc groove, and since both the arc groove and the contact surface of the arc block are arc-shaped, the user can apply force to the frame to make the arc block slide along the arc surface of the arc groove and slide away from the first set of arc grooves along the transition arc on both sides of the arc groove. At this time, the connecting block pushes the spring A to compress it. Then the user continues to push the frame, so that the arc block slides a distance on the side of the frame and then gets stuck in the arc groove again. At this time, the user can stop pushing the frame, so that the spring A rebounds and resets, thereby pushing the arc block to start to attach to the second row of arc grooves along the transition arc on the arc groove. This achieves precise control of the sliding distance of the battery pack and moves the welded battery pack out of the welding station. At this time, since the central axis of the arc groove is aligned with the midline of the two adjacent pressure strips above it, it can avoid the welding point from gradually deviating from the center of the battery tab due to deviation in the moving distance of the battery pack during welding. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0010] Figure 2 This is an enlarged schematic diagram of the structure of region A of this utility model.

[0011] Figure 3 This is an enlarged top view of the structure of this utility model.

[0012] Figure 4 This is an enlarged schematic diagram of the structure of region B of this utility model.

[0013] Figure reference numerals: Frame 101, connecting frame 201, pressure strip 202, base support 203, 204, guide rod 205, spring 206, cam 207, cam A 208, motor 209, arc groove 301, arc block 302, connecting block 303, limit rod 304, spring A 305, pull rod 306. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0015] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0016] Please see Figures 1-4 This utility model provides a battery pack welding nickel sheet cascade guide assembly, including a frame 101 and pressure strips 202. Multiple pressure strips 202 are symmetrically fixedly connected to the connecting frame 201, and the distance between two adjacent pressure strips 202 is slightly smaller than the diameter of the battery, and the width of the pressure strip 202 is greater than the distance between two adjacent batteries. The connecting frame 201 is parallel to the frame 101, and multiple pressure strips 202 are parallel to the bottom plate of the frame 101. The frame 101 is slidably connected to the bottom support 203.

[0017] It also includes a positioning component for limiting the sliding distance of the frame 101; and a pressing component for pressing the plurality of pressure strips 202 against the battery pack.

[0018] Regarding the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific pressure strip 202 described in the above embodiments. For example, the pressure strip 202 has a rubber pad on its bottom side. The purpose of this setting is to facilitate the contact between the pressure strip 202 and the battery pack and the nickel sheet on it, thereby avoiding the breakage of the nickel sheet.

[0019] Specifically, the pressing component includes a cam 207 and a cam A208. Multiple cams 207 are symmetrically fixedly connected to the connecting frame 201. The cam A208 is disposed above the cams 207, and the axis lines of the cams A208 and cams 207 are on the same vertical plane.

[0020] It also includes a reset component for sliding the connection frame 201 back to its original position.

[0021] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific cam 207 and cam A208 described in the above embodiments. For example, both cam 207 and cam A208 are made of smooth material. The purpose of this setting is to reduce the damping generated by their contact, thereby facilitating the rotation of cam A208.

[0022] Specifically, the plurality of cams A208 are fixedly connected to the output shaft of motor 209, and motor 209 is fixedly connected to frame 101.

[0023] For the above examples, those skilled in the art should know that when implementing the above technical solutions, it is not limited to the specific motor 209 described in the above embodiments. For example, the motor 209 should be a motor with a self-locking effect. The purpose of this setting is to prevent the output shaft from reversing if an external force is applied to it after the motor stops and enters the standby state.

[0024] Specifically, the reset assembly includes a spring 206, one end of which is fixedly connected to the connecting frame 201, and the other end of which is fixedly connected to the frame 101.

[0025] For the above examples, those skilled in the art should know that the implementation of the above technical solutions is not limited to the specific spring 206 described in the above embodiments. For example, the elasticity of the spring 206 should be sufficient to support the pulling of the connecting frame 201 to slide back to the upper part of the guide rod 205.

[0026] Specifically, the spring 206 is sleeved on the guide rod 205, the connecting frame 201 is slidably connected to the guide rod 205, and the guide rod 205 is fixedly connected to the frame 101.

[0027] Specifically, the positioning component includes an arc groove 301 and an arc block 302. Multiple arc grooves 301 are symmetrically opened on the frame 101, and the arc block 302 fits into the arc groove 301. Both sides of the arc groove 301 are provided with transition arcs, and the center line of the arc groove 301 and the center lines of the two adjacent pressure strips 202 above it are on the same vertical plane.

[0028] For the above examples, those skilled in the art should know that when implementing the above technical solutions, it is not limited to the specific arc groove 301 and arc block 302 described in the above embodiments. For example, the contact part between the arc groove 301 and the arc block 302 is made of a smooth, low-damping material. The purpose of this setting is to facilitate the user to push the frame 101 so that the arc block 302 can slide quickly into the next arc groove 301.

[0029] Specifically, the arc block 302 is fixedly connected to the connecting block 303, and the connecting block 303 is slidably connected to the limiting rod 304, and the limiting rod 304 is fixedly connected to the base 203.

[0030] Specifically, a spring A305 is sleeved on the limiting rod 304. One end of the spring A305 is fixedly connected to the connecting block 303, and the other end of the spring A305 is fixedly connected to the base support 203.

[0031] Specifically, a pull rod 306 is fixedly connected to the connecting block 303, and the pull rod 306 extends through the through hole on the bottom support 203.

[0032] In this embodiment of the invention, the user places the neatly arranged battery pack onto the base plate of the frame 101. The user then starts the motor 209, causing the cam A208, fixedly connected to its output shaft, to rotate at a constant speed. At this time, the protrusion on cam A208 gradually contacts cam 207. Since the contact surfaces of cam 207 and cam A208 are both curved, after cam 207 contacts cam A208, the motor 209 is started again, causing cam 207 to slide downwards and begin to stretch the spring 206 fixedly connected to it. It is in a deformed state so that after the cam A208 rotates and resets, the cam 207 can quickly slide up to the reset. When the central axis of the cam A208 and the central axis of the cam 207 are in the same vertical plane, the multiple pressure strips 202 set on it begin to contact the battery pack and press the nickel sheet on the battery pack, thereby positioning the nickel sheet at multiple points and avoiding the nickel sheet shifting during the welding process, which would prevent it from being accurately welded to the center of the battery tab. At this time, the welding points of the battery are all between two adjacent pressure strips 202. At the same time, since the two pressure strips 202 have a certain distance, it can effectively avoid affecting the welding of the nickel sheet.

[0033] During the welding process, once the first row of battery packs is welded, the user can push the frame 101. At this time, since the arc block 302 is attached to the arc groove 301, and since both the arc groove 301 and the contact surface of the arc block 302 are arc-shaped, the user can apply force to the frame 101 to make the arc block 302 slide along the arc surface of the arc groove 301 and slide away from the first set of arc grooves 301 along the transition arcs on both sides of the arc groove 301. At this time, the connecting block 303 pushes the spring A305 to put it in a compressed state. Then, the user continues to push the frame 101, so that the arc block 302 is on the side of the frame 101. After sliding a certain distance, the battery pack is inserted into the arc groove 301 again. At this point, the user can stop pushing the frame 101, which causes the spring A305 to return to its original position. This pushes the arc block 302 to begin to fit into the second row of arc grooves 301 along the transition arc on the arc groove 301. This allows for precise control of the sliding distance of the battery pack, enabling the welded battery pack to be moved out of the welding station. Since the central axis of the arc groove 301 is aligned with the center line of the two adjacent pressure strips 202 above it, it can prevent the welding point from gradually deviating from the center of the battery tab due to deviations in the moving distance of the battery pack during welding.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0036] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0037] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0038] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0039] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cascaded guide assembly for welded nickel sheets in a battery pack, characterized in that, The device includes a frame (101) and pressure strips (202). Multiple pressure strips (202) are symmetrically fixedly connected to the connecting frame (201). The distance between two adjacent pressure strips (202) is smaller than the diameter of the battery, and the width of the pressure strip (202) is greater than the distance between two adjacent batteries. The connecting frame (201) is fitted parallel to the frame (101), and multiple pressure strips (202) are parallel to the bottom plate of the frame (101). The frame (101) is slidably connected to the base (203). It also includes a positioning component for limiting the sliding distance of the frame (101); and a pressing component for pressing the multiple pressure strips (202) against the battery pack.

2. The battery pack welded nickel sheet cascaded guide assembly according to claim 1, characterized in that, The pressing component includes a cam (207) and a cam A (208). Multiple cams (207) are symmetrically fixedly connected to the connecting frame (201). The cam A (208) is located above the cam (207), and the axis lines of the cam A (208) and the cam (207) are on the same vertical plane. It also includes a reset component for sliding the connection frame (201) back to its original position.

3. The battery pack welded nickel sheet cascaded guide assembly according to claim 2, characterized in that, The plurality of cams A (208) are fixedly connected to the output shaft of the motor (209), and the motor (209) is fixedly connected to the frame (101).

4. The battery pack welded nickel sheet cascaded guide assembly according to claim 2, characterized in that, The reset assembly includes a spring (206), one end of which is fixedly connected to the connecting frame (201), and the other end of which is fixedly connected to the frame (101).

5. The battery pack welded nickel sheet cascaded guide assembly according to claim 4, characterized in that, The spring (206) is sleeved on the guide rod (205), the connecting frame (201) is slidably connected to the guide rod (205), and the guide rod (205) is fixedly connected to the frame (101).

6. The battery pack welded nickel sheet cascaded guide assembly according to claim 1, characterized in that, The positioning component includes an arc groove (301) and an arc block (302). Multiple arc grooves (301) are symmetrically opened on the frame (101). The arc block (302) fits into the arc groove (301). Both sides of the arc groove (301) are provided with transition arcs. The center line of the arc groove (301) and the center lines of the two adjacent pressure strips (202) above it are on the same vertical plane.

7. The battery pack welded nickel sheet cascaded guide assembly according to claim 6, characterized in that, The arc block (302) is fixedly connected to the connecting block (303), and the connecting block (303) is slidably connected to the limiting rod (304), and the limiting rod (304) is fixedly connected to the base (203).

8. The battery pack welded nickel sheet cascaded guide assembly according to claim 7, characterized in that, A spring A (305) is sleeved on the limiting rod (304). One end of the spring A (305) is fixedly connected to the connecting block (303), and the other end of the spring A (305) is fixedly connected to the base (203).

9. The battery pack welded nickel sheet cascaded guide assembly according to claim 7, characterized in that, A pull rod (306) is fixedly connected to the connecting block (303), and the pull rod (306) extends through the through hole on the base (203).

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