CN217361848U

CN217361848U - Battery core-lug ultrasonic welding tool

Info

Publication number: CN217361848U
Application number: CN202220201352.3U
Authority: CN
Inventors: 郑盼斌; 张亚儒; 朱家浩
Original assignee: Shanghai Lanjun New Energy Technology Co Ltd
Current assignee: Shanghai Lanjun New Energy Technology Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-09-02
Anticipated expiration: 2032-01-25

Abstract

The utility model relates to an electricity core-utmost point ear ultrasonic bonding frock, this frock includes: the ultrasonic welding seat (8) is used for bearing the lug (3), the connecting protection plate (7) and the adapter plate (9); the ultrasonic welding head (1) is used for matching with the ultrasonic welding seat (8) to complete ultrasonic welding; the length of switching piece (9) is greater than ultrasonic bonding seat (8), and the both ends of connecting protection sheet (7) are equipped with the briquetting subassembly that is used for compressing tightly switching piece (9). And during welding, the connecting protection plate (7) is positioned between the tab (3) and the adapter plate (9). The pole ear (3) is placed on the ultrasonic welding seat (8). Compared with the prior art, the utility model has the advantages of reduce welding process, improve production efficiency, guarantee welding effect uniformity.

Description

Electricity core-utmost point ear ultrasonic bonding frock

Technical Field

The utility model relates to a welding frock field, concretely relates to electricity core-utmost point ear ultrasonic bonding frock.

Background

After the battery cell shell is processed to be qualified through procedures such as laser welding and the like, the switching piece of the battery cell shell needs to be welded with a matched battery cell tab, and connection of the battery cell and the positive and negative electrode columns of the shell is completed. The existing welding procedure is that the pole ear and the connecting protection plate are firstly welded by ultrasonic wave, and then the welded pole ear and the connecting protection plate are welded on the adapter plate of the shell by a laser after the welding is finished. Thus, the welding process is completed.

The existing welding process comprises two steps of ultrasonic welding and laser welding. After the connection protection plate and the pole lug are subjected to ultrasonic welding, the thickness of the connection protection plate is about 0.6-0.8mm, the whole connection protection plate is thicker, and the laser needs larger power if the laser is required to penetrate through the pole lug and weld the pole lug on the adapter plate. Consequently, can produce higher temperature when laser welding, because the space is narrow and small, the temperature that laser welding produced is on the high side and can't disperse rapidly, can lead to appearing blackening or even the vestige of firing with the electric core that utmost point ear is connected to can make few aluminium foil or copper foil fracture.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to provide an electricity core-utmost point ear ultrasonic welding frock that reduces welding process, improves production efficiency, guarantees to weld the effect uniformity in order to overcome the defect that above-mentioned prior art exists.

The purpose of the utility model can be realized through the following technical scheme:

the designer discovers that laser welding is not advisable, needs whole ultrasonic bonding, also is with utmost point ear, connection protection piece and the welding of the disposable ultrasonic bonding machine of switching piece, consequently need to design a spacing frock, carries on spacingly to the switching piece and connection protection piece when ultrasonic bonding, guarantees the uniformity of welding effect, proposes following concrete scheme:

the utility model provides a electricity core-utmost point ear ultrasonic bonding frock, this frock includes:

the ultrasonic welding seat is used for bearing the lug, connecting the protection plate and the adapter plate; the ultrasonic welding head is used for matching with the ultrasonic welding seat to complete ultrasonic welding; the length of switching piece is greater than the ultrasonic bonding seat, and the both ends of connecting the screening glass are equipped with the briquetting subassembly that is used for compressing tightly the switching piece.

Furthermore, during welding, the connection protection plate is positioned between the pole lug and the adapter plate. Further, when welding, the pole ear is placed on the ultrasonic welding seat. Then the connection protection plate and the adapter plate are sequentially overlapped.

Furthermore, the ultrasonic welding seat is stair-shaped. Furthermore, during welding, the ultrasonic welding head is abutted with the adapter plate.

Further, during the welding, the briquetting subassembly include switching piece briquetting and stopper, the stopper set firmly in ultrasonic bonding seat both sides, switching piece briquetting can dismantle with the stopper and be connected.

Furthermore, the adaptor plate pressing block is L-shaped. The main function of the adapter plate pressing block is to press the adapter plate, so that the adapter plate is tightly attached to the pole lug and the connection protection plate, and ultrasonic welding is facilitated.

Furthermore, during welding, the adaptor pressing block abuts against the upper part of the adaptor.

Furthermore, the adaptor piece pressing block is connected with the limiting block through screws.

Furthermore, a spring is arranged between the adaptor piece pressing block and the limiting block, and the spring is sleeved on the screw. The main effect of spring is that the switching piece briquetting is bounced when unloading, conveniently unloads.

Compared with the prior art, the utility model has the advantages of it is following:

(1) when the utility model is used for welding, the switching piece is pressed by the switching piece pressing block, so that the switching piece is tightly attached to the lug and the connection protection plate, thereby facilitating ultrasonic welding;

(2) in the utility model, a spring is arranged between the switching piece pressing block and the limiting block, and the switching piece pressing block is bounced when unloading, so that the unloading is convenient;

(3) the utility model reduces the welding process, completes the welding requirement by one-time welding, and improves the production efficiency;

(4) in the ultrasonic welding process, the utility model limits the rotary connecting piece and the connecting protection plate, and ensures the consistency of the welding effect;

(5) the utility model discloses cancel laser welding, reduced welding process, improved utmost point ear welding efficiency, guaranteed ultrasonic bonding back utmost point ear simultaneously and connected screening glass and switching piece three's position cooperation degree.

Drawings

FIG. 1 is a schematic view of a welding tool in an embodiment;

the reference numbers in the figures indicate: the ultrasonic welding head comprises an ultrasonic welding head 1, a screw 2, a tab 3, an adapter plate pressing block 4, a spring 5, a limiting block 6, a connecting protective plate 7, an ultrasonic welding seat 8 and an adapter plate 9.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Examples

An ultrasonic welding tool for battery core-pole ear is shown in figure 1, and comprises: the ultrasonic welding seat 8 is used for bearing the lug 3, the connection protection sheet 7 and the adapter sheet 9; the ultrasonic welding head 1 is used for matching with the ultrasonic welding seat 8 to complete ultrasonic welding; the length of the adapter sheet 9 is larger than that of the ultrasonic welding base 8, and two ends of the connecting protection sheet 7 are provided with pressing block assemblies used for pressing the adapter sheet 9.

During welding, the connecting protection plate 7 is positioned between the tab 3 and the adapter plate 9. The tab 3 is placed on the ultrasonic welding seat 8. And then the connection protection sheet 7 and the adapter sheet 9 are sequentially superposed. The ultrasonic welding seat 8 is stair-shaped. The ultrasonic horn 1 abuts against the interposer 9.

The briquetting subassembly includes switching piece briquetting 4 and stopper 6, and stopper 6 sets firmly in 8 both sides of ultrasonic bonding seat, and switching piece briquetting 4 can be dismantled with stopper 6 and be connected. The adaptor piece pressing block 4 is L-shaped. The adaptor piece pressing block 4 is mainly used for pressing the adaptor piece 9, so that the adaptor piece 9 is tightly attached to the lug 3 and the connecting protection plate 7, and ultrasonic welding is facilitated. The adaptor piece pressing block 4 is abutted to the upper part of the adaptor piece 9. The adaptor piece pressing block 4 is connected with the limiting block 6 through the screw 2. A spring 5 is arranged between the switching piece pressing block 4 and the limiting block 6, and the spring 5 is sleeved on the screw 2. The spring 5 has the main function of bouncing the adaptor piece pressing block 4 during discharging, so that discharging is facilitated.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a electricity core-utmost point ear ultrasonic bonding frock which characterized in that, this frock includes:

the ultrasonic welding seat (8) is used for bearing the lug (3), the connecting protection plate (7) and the adapter plate (9);

the ultrasonic welding head (1) is used for matching with the ultrasonic welding base (8) to complete ultrasonic welding;

the length of switching piece (9) is greater than ultrasonic bonding seat (8), and the both ends of connecting protection sheet (7) are equipped with the briquetting subassembly that is used for compressing tightly switching piece (9).

2. The battery core-tab ultrasonic welding tool according to claim 1, wherein during welding, the connection protection sheet (7) is located between the tab (3) and the adapter sheet (9).

3. The battery core-tab ultrasonic welding tool according to claim 1, wherein during welding, the tab (3) is placed on the ultrasonic welding seat (8).

4. The battery core-tab ultrasonic welding tool according to claim 1 or 3, wherein the ultrasonic welding seat (8) is trapezoidal.

5. The electric core-pole lug ultrasonic welding tool according to claim 1, characterized in that during welding, the ultrasonic welding head (1) is abutted with the adapter sheet (9).

6. The electric core-tab ultrasonic welding tool according to claim 1, characterized in that during welding, the pressing block assembly comprises an adapter pressing block (4) and a limiting block (6), the limiting block (6) is fixedly arranged on two sides of the ultrasonic welding seat (8), and the adapter pressing block (4) is detachably connected with the limiting block (6).

7. The battery core-tab ultrasonic welding tool according to claim 6, wherein the adaptor piece pressing block (4) is L-shaped.

8. The battery core-tab ultrasonic welding tool according to claim 6, wherein during welding, the adaptor pressing block (4) abuts against the adaptor (9).

9. The battery core-tab ultrasonic welding tool according to claim 6, wherein the adaptor piece pressing block (4) is connected with the limiting block (6) through a screw (2).

10. The battery core-tab ultrasonic welding tool according to claim 9, wherein a spring (5) is arranged between the adaptor piece pressing block (4) and the limiting block (6), and the spring (5) is sleeved on the screw (2).