CN223762519U

CN223762519U - A battery cell welding fixture

Info

Publication number: CN223762519U
Application number: CN202520117672.4U
Authority: CN
Inventors: 范勤江; 蒋继德
Original assignee: Suzhou Xude Technology Co ltd
Current assignee: Suzhou Xude Technology Co ltd
Priority date: 2025-01-18
Filing date: 2025-01-18
Publication date: 2026-01-06
Anticipated expiration: 2035-01-18

Abstract

The utility model relates to the technical field of battery welding, in particular to a battery cell welding jig, which comprises a bottom plate; the battery cell positioning device comprises a base plate, a positioning component, a welding cushion block and a clamping component, wherein the positioning component is arranged on the base plate and used for positioning a battery cell, the welding cushion block is fixedly arranged on the base plate, and the clamping component is arranged on the base plate and used for fixing a protection plate. According to the battery cell welding jig, in welding of the battery cell of the soft package battery, through the mutual matching of the positioning component and the clamping component, on one hand, during welding operation, the welded battery cell and the protection plate are clamped and positioned, so that the battery cell and the protection plate are prevented from being inclined due to the fact that hands of workers touch the battery cell and the protection plate directly on the bottom plate, the welding quality of the battery cell lug is affected, on the other hand, the battery cell and the protection plate can be clamped and positioned at the same time, clamping of the battery cell and the protection plate is convenient, and the welding effect of the battery cell can be further improved.

Description

Battery cell welding jig

Technical Field

The utility model relates to the technical field of battery welding, in particular to a battery cell welding jig.

Background

The packaging lithium ion battery is favored by people in terms of the advantages of high energy density, good cycle life, diversified manufacturing forms and the like, and becomes the main stream of the current lithium ion battery, and tab welding is a key process of the flexible packaging lithium ion battery, and the welding quality directly affects the qualification rate, the resistance and the multiplying power performance of the lithium ion battery, and the current tab welding mostly adopts battery protection plates and battery core tab welding, so that the virtual welding, the desoldering and the dislocation are easy to cause, and the battery quality and the qualification rate of the flexible packaging battery are affected.

The patent with the bulletin number CN219746767U is fixed tool for panel welding, including the bottom plate, the backup plate, the bottom plate top is connected with the backup plate bottom, is equipped with welding pen connecting portion, spliced pole, welding cushion between backup plate and the bottom plate, and welding pen connecting portion are used for being connected with the anodal welding pen or the negative pole welding pen electricity of spot welder in the use correspondence. According to the utility model, through the arrangement of the welding pen connecting part, the connecting column and the welding cushion block, the welding pen of the other electrode is only required to be held by a hand to carry out corresponding operation during welding, so that the operation intensity of operators is reduced, the welding pen is convenient and quick, the current of the welding pen of one electrode is conducted to the surface of the integrated circuit board, the current flow direction is changed, the energy loss is reduced, the spot welding is more accurate, the combination firmness of a battery and the integrated circuit board is greatly improved, and the arranged magnet grooves and scale marks enable the side edges of the battery to be accurately adjusted on the same scale mark corresponding to the integrated circuit board, so that the welding precision is further improved.

But in this prior art, in the welding to the electric core, need extra corresponding magnet of fixed mounting on the electric core, can inhale mutually with the magnet in the magnet groove, lead to the installation of electric core fixed comparatively loaded down with trivial details, influence welding efficiency.

Therefore, there is a need to provide a new solution to overcome the above-mentioned drawbacks.

Disclosure of utility model

The utility model aims to provide a battery cell welding jig capable of effectively solving the technical problems.

In order to achieve the purpose of the utility model, the following technical scheme is adopted:

The battery cell welding jig comprises a bottom plate, a positioning assembly, a welding cushion block, a clamping assembly and a clamping assembly, wherein the positioning assembly is arranged on the bottom plate and used for positioning a battery cell;

The positioning assembly comprises clamping plates symmetrically and slidably arranged on the bottom plate, hinge rods hinged with the clamping plates, movable plates hinged between the two hinge rods, movable rods driving the movable plates to move, and first springs sleeved on the movable rods.

Further, one end of the first spring is fixedly connected to the surface of one end of the movable rod, and the other end of the first spring is fixedly connected with the side wall of the bottom plate.

Further, a guide sleeve is sleeved at the other end of the movable rod, and the top of the guide sleeve is fixedly connected with the bottom of the bottom plate.

The clamping assembly comprises a supporting block, a moving rod for driving the supporting block to move, a positioning sleeve sleeved on the moving rod, the top of the positioning sleeve is fixedly arranged at the bottom of the bottom plate, a second spring sleeved on the moving rod, one end of the second spring is fixedly arranged on the moving rod, and the other end of the second spring is fixedly arranged on the surface of the positioning sleeve.

Further, the axis of the movable rod and the axis of the movable rod are on the same horizontal line.

Compared with the prior art, the welding fixture has the beneficial effects that in welding of the battery cells of the soft package battery, through the mutual matching of the positioning component and the clamping component, on one hand, in welding operation, the welded battery cells and the protection plates are clamped and positioned, so that the battery cells and the protection plates are prevented from being inclined due to the fact that hands of workers touch the battery cells and the protection plates directly on the bottom plate, the welding quality of battery cell lugs is affected, and on the other hand, the battery cells and the protection plates can be clamped and positioned simultaneously, so that the clamping of the battery cells and the protection plates is more convenient, and the welding effect of the battery cells can be further improved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

FIG. 1 is a schematic front view of the present utility model;

FIG. 2 is a schematic front cross-sectional view of the present utility model;

fig. 3 is a schematic bottom view of the present utility model.

In the figure, 1, a bottom plate, 101, a welding cushion block, 2, a positioning assembly, 201, a clamping plate, 202, a hinging rod, 203, a movable plate, 204, a movable rod, 205, a first spring, 3, a clamping assembly, 301, a butting block, 302, a movable rod, 303, a positioning sleeve, 304 and a second spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model. When an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

As shown in fig. 1 to 3, the battery cell welding jig comprises a bottom plate 1, a positioning assembly 2 arranged on the bottom plate 1 and used for positioning a battery cell, a welding cushion block 101 fixedly arranged on the bottom plate 1, and a clamping assembly 3 arranged on the bottom plate 1 and used for fixing a protection plate;

The positioning assembly 2 comprises clamping plates 201 which are symmetrically and slidably arranged on the bottom plate 1, sliding grooves are symmetrically formed in the surface of the bottom plate 1, two ends of the clamping plates 201 are slidably arranged in corresponding sliding grooves through sliding blocks, hinge rods 202 which are hinged with the clamping plates 201, a movable plate 203 which is hinged between the two hinge rods 202, a movable rod 204 which drives the movable plate 203 to move, and a first spring 205 which is sleeved on the movable rod 204.

In the welding of the battery cell of the soft package, first, one end of the movable rod 204 is pushed to enable one end of the movable rod 204 to approach the bottom plate 1, the movable plate 203 fixed on the movable rod 204 moves, at the moment, the symmetrical hinged rods 202 on the movable plate 203 drive the hinged clamping plates 201 to move, the two symmetrical clamping plates 201 simultaneously move oppositely, the battery cell is placed on the bottom plate 1, when the movable rod 204 is loosened, the first spring 205 is elastically reset after being stressed, the movable plate 203 on the movable rod 204 drives the corresponding hinged rod 202 to deflect, the hinged rod 202 at the moment pulls the corresponding clamping plates 201 to approach the battery cell, the clamping and positioning of the battery cell are automatically completed, on one hand, the battery cell is prevented from being directly placed on the bottom plate 1 to be welded, and on the other hand of a worker is easy to touch the battery cell placed on the bottom, so that the battery cell is inclined, the welding quality of the battery cell electrode lug is affected, and on the other hand, the clamping of the battery cell is enabled to be more convenient, and the welding effect of the battery cell can be further improved.

It should be noted that, when the pressing of one end of the movable rod 204 is released, the first spring 205 is elastically reset after being stressed to push the movable rod 204 to move, so that the movable plate 203 fixed on the surface of the movable rod 204 moves, and the hinged rod 202 is driven to deflect, thereby realizing the automatic clamping and positioning of the battery core by the clamping plate 201.

The guide sleeve is sleeved at the other end of the movable rod 204, the top of the guide sleeve is fixedly connected with the bottom of the bottom plate 1, and the stability of the movable rod 204 during movement is improved through the arrangement of the guide sleeve.

In the process of clamping and welding the battery cell, the protection plate connected with the battery cell tab can be welded stably for convenience, so that the problem of cold joint is prevented;

The clamping assembly 3 comprises a supporting block 301, a moving rod 302 driving the supporting block 301 to move, a positioning sleeve 303 sleeved on the moving rod 302, wherein the top of the positioning sleeve 303 is fixedly arranged at the bottom of the bottom plate 1, a second spring 304 sleeved on the moving rod 302, one end of the second spring 304 is fixedly arranged on the moving rod 302, and the other end of the second spring 304 is fixedly arranged on the surface of the positioning sleeve 303.

When the movable rod 204 is pushed to enable the two clamping plates 201 to move oppositely, the other end of the movable rod 204 is extruded on the movable rod 302 fixed at the lower end of the abutting block 301, so that the movable rod 302 drives the abutting block 301 to move to a position far away from the welding cushion block 101, at the moment, the protection plate can be placed in a gap between the welding cushion block 101 and the abutting block 301, when the movable rod 204 is loosened, the other end of the movable rod 204 is released from extrusion of the movable rod 302, the second spring 304 is elastically reset after being stressed, the movable rod 302 is driven to move, the abutting block 301 clamps the protection plate between the welding cushion block 101 and the abutting block 301, and the protection plate is fixed.

It should be noted that, the axis of the moving rod 302 is on the same horizontal line with the axis of the moving rod 204, and the other end of the moving rod 204 can be stably pressed against the surface of one end of the moving rod 302 when pushing the moving rod 204 to move, so that the moving rod 302 drives the abutment 301 to move.

In the welding of a battery cell of a soft package, one end of a movable rod 204 is pushed to enable one end of the movable rod 204 to approach a bottom plate 1, so that a movable plate 203 fixed on the movable rod 204 moves, at the moment, a hinged clamp plate 201 is driven by a symmetrically hinged hinge rod 202 on the movable plate 203 to move, two symmetrical clamp plates 201 simultaneously move oppositely, and then the battery cell is placed on the bottom plate 1, when the movable rod 204 is released, a first spring 205 is elastically reset after being stressed, so that the movable plate 203 on the movable rod 204 drives a corresponding hinge rod 202 to deflect, at the moment, the hinge rod 202 pulls the corresponding clamp plate 201 to approach the battery cell, clamping and positioning of the battery cell are automatically completed, and when the movable rod 204 is pushed to move, the other end of the movable rod 204 is extruded on a movable rod 302 fixed at the lower end of a supporting block 301, so that the supporting block 301 is driven to move to a position far away from a welding cushion block 101, at the moment, a protection plate can be placed in a gap between the welding cushion block 101 and the supporting block 301, when the movable rod 204 is released, the other end of the movable rod 204 is elastically reset, the second spring 304 is enabled to elastically reset, the corresponding clamp plate 202 is driven to drive the movable plate 203 to move the corresponding clamp plate 202, and the battery cell is welded with the supporting block 301, and the welding cushion block is welded, and the welding is subsequently, and the welding cushion block is welded.

Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional modes in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that details are not described in detail in the specification, and the utility model belongs to the prior art known to the person skilled in the art.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims

1. The battery cell welding jig is characterized by comprising a bottom plate, a positioning assembly, a welding cushion block, a clamping assembly and a clamping assembly, wherein the positioning assembly is arranged on the bottom plate and used for positioning a battery cell;

2. The die bonding jig according to claim 1, wherein one end of the first spring is fixedly connected to a surface of one end of the movable rod, and the other end of the first spring is fixedly connected to a side wall of the bottom plate.

3. The die bonding jig according to claim 2, wherein the other end of the movable rod is sleeved with a guide sleeve, and the top of the guide sleeve is fixedly connected with the bottom of the bottom plate.

4. The battery cell welding jig according to claim 1, wherein the clamping assembly comprises a supporting block, a moving rod for driving the supporting block to move, a positioning sleeve sleeved on the moving rod, the top of the positioning sleeve is fixedly arranged at the bottom of the bottom plate, a second spring sleeved on the moving rod, one end of the second spring is fixedly arranged on the moving rod, and the other end of the second spring is fixedly arranged on the surface of the positioning sleeve.

5. The die-bonding jig according to claim 4, wherein the axis of the movable rod is on the same horizontal line as the axis of the movable rod.