CN220515861U - Welding jig and welding device for lithium battery - Google Patents

Welding jig and welding device for lithium battery Download PDF

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Publication number
CN220515861U
CN220515861U CN202321683992.3U CN202321683992U CN220515861U CN 220515861 U CN220515861 U CN 220515861U CN 202321683992 U CN202321683992 U CN 202321683992U CN 220515861 U CN220515861 U CN 220515861U
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China
Prior art keywords
welding
sliding groove
clamping
clamping part
battery cell
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CN202321683992.3U
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Chinese (zh)
Inventor
彩艳洲
蒋治亿
许金园
朱容容
张晨宇
吕冰倩
高怡
胥海龙
栗楠
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Trina Energy Storage Solutions Jiangsu Co Ltd
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Trina Energy Storage Solutions Jiangsu Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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Abstract

The utility model provides a welding fixture and a welding device for a lithium battery, wherein the welding fixture comprises: the clamping mechanism, the welding base and the pressing mechanism; the clamping mechanism is arranged below the welding base; the hold-down mechanism is arranged above the welding base. Through having set up fixture, carry out the centre gripping to not unidimensional electric core, when avoiding welding, take place not hard up between electric core and the switching piece, avoid taking place the rosin joint.

Description

Welding jig and welding device for lithium battery
Technical Field
The utility model relates to the field of lithium batteries, in particular to a welding fixture and a welding device for a lithium battery.
Background
The lithium ion battery core is outstanding in the rechargeable battery core after the nickel-cadmium battery core, and the lithium ion battery core is widely applied to the fields of mobile phone battery, electric tools, remote control, electric automobiles, energy storage and the like due to the excellent characteristics of the lithium ion battery core.
In the lithium battery industry, the performance of the battery core needs to simulate the actual use process of the battery core through various charging and discharging equipment high-low temperature boxes and the like, but a connecting device required by the test is not reserved during the production of the lithium battery, the test of the battery core is realized by welding a transfer sheet before the test, but the phenomena of cold joint, empty joint and the like exist in manual welding, and therefore, the welding of the battery core needs to be realized through a welding fixture.
The existing welding fixture can be designed to correspond to the welding fixture according to the size of the battery cell, so that the battery cell transfer piece can be welded. However, this welding jig can only weld one type of electric core, in actual test process, need according to the electric core of different models, the design is purchased different welding jigs to increased overall cost, simultaneously, need frequent change welding jig to satisfy the welding demand of electric core of different models, thereby lead to holistic welding efficiency to reduce.
The above problems are currently in need of solution.
Disclosure of Invention
The utility model aims to provide a welding fixture and a welding device for a lithium battery.
In order to solve the above technical problems, the present utility model provides a welding fixture, including:
the clamping mechanism, the welding base and the pressing mechanism;
the clamping mechanism is arranged below the welding base;
the hold-down mechanism is arranged above the welding base.
Further, the welding base is provided with a communication groove;
the clamping mechanism is suitable for clamping and fixing the battery cell and leaking the pole of the battery cell from the communication groove;
the pressing mechanism is suitable for fixing the adapter piece on the pole of the battery cell clamped by the clamping mechanism.
Further, the clamping mechanism comprises a supporting plate, a first clamping part and a second clamping part;
the first clamping part and the second clamping part are oppositely arranged and are elastically connected to the supporting plate.
Further, the supporting plate is provided with a first sliding groove and a second sliding groove along the horizontal direction;
the first clamping part is elastically connected in the first sliding groove through a first reset spring;
the second clamping part is elastically connected in the second sliding groove through a second reset spring;
the elastic ends of the first reset spring and the second reset spring are oppositely arranged.
Further, the distance between the first sliding groove and the second sliding groove is smaller than the thickness of the battery cell.
Further, a first limiting block is arranged at one end, far away from the battery cell, of the first clamping part;
the first limiting block extends out of the first sliding groove;
a second limiting block is arranged at one end, far away from the battery cell, of the second clamping part;
the second limiting block extends out of the second sliding groove.
Further, the clamping mechanism also comprises a first handle, a first connecting main arm, a first connecting auxiliary arm,
One end of the first connecting auxiliary arm is rotationally connected between the first sliding groove and the second sliding groove, and the other end of the first connecting auxiliary arm is rotationally connected with one end of the first connecting main arm;
the other end of the first connecting main arm is rotationally connected with a first handle;
the bottom surface of the first connecting main arm is propped against the first limiting block.
Further, the clamping mechanism further comprises: the second handle, the second connecting main arm and the second connecting auxiliary arm;
one end of the second connecting auxiliary arm is rotationally connected between the second sliding groove and the second sliding groove, and the other end of the second connecting auxiliary arm is rotationally connected with one end of the second connecting main arm;
the other end of the second connecting main arm is rotationally connected with a second handle;
the bottom surface of the second connecting main arm is propped against the second limiting block.
Further, the inner side wall of the communication groove extends inwards to form a supporting flanging.
The utility model also provides a welding device for the lithium battery, which comprises a device body and the welding fixture;
the welding fixture is fixedly arranged on the device body.
The utility model has the beneficial effects that the utility model provides a welding fixture and a welding device for a lithium battery, wherein the welding fixture comprises: the clamping mechanism, the welding base and the pressing mechanism; the clamping mechanism is arranged below the welding base; the hold-down mechanism is arranged above the welding base. Through having set up fixture, carry out the centre gripping to not unidimensional electric core, when avoiding welding, take place not hard up between electric core and the switching piece, avoid taking place the rosin joint.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a welding jig according to the present embodiment.
Fig. 2 is a schematic structural diagram of a first clamping portion according to the present embodiment.
Fig. 3 is a schematic structural view of a welding base provided in this embodiment.
In the figure: 100. a clamping mechanism; 110. a support plate; 111. a first sliding groove; 112. a second sliding groove; 120. a first clamping part; 121. a first limiting block; 130. a second clamping portion; 140. a first grip; 150. a first connecting main arm; 160. a first connecting sub-arm; 200. welding a base; 210. a communication groove; 211. supporting and flanging; 300. a compressing mechanism; 310. a pressure head; 311. a first metal frame; 312. a second metal frame; 320. and pressing the handle.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the utility model and therefore show only the structures which are relevant to the utility model.
Example 1
Referring to fig. 1-3, the present embodiment provides a welding fixture, including: clamping mechanism 100, welding base 200, and hold-down mechanism 300; the clamping mechanism 100 is arranged below the welding base 200; the pressing mechanism 300 is disposed above the welding base 200. Through setting up fixture 100, carry out the centre gripping to not unidimensional electric core, avoid when welding, take place not hard up between electric core and the switching piece, avoid taking place the rosin joint.
In this embodiment, the welding base 200 is provided with a communication groove 210; the clamping mechanism 100 is adapted to clamp and fix the battery cell, and leak the terminal post of the battery cell from the communication slot 210; the pressing mechanism 300 is adapted to fix the adaptor on the terminal of the cell clamped by the clamping mechanism 100. Through set up the intercommunication groove 210 on welding base 200 to set up electric core and switching piece respectively in welding base 200's both sides, and communicate through the intercommunication groove 210, be convenient for be connected and fix electric core and switching piece.
In this embodiment, the clamping mechanism 100 includes a support plate 110, a first clamping portion 120, and a second clamping portion 130; the first clamping portion 120 and the second clamping portion 130 are disposed opposite to each other and are elastically connected to the support plate 110. The battery cells with different sizes are clamped and fixed through the first clamping part 120 and the second clamping part 130, so that the battery cells are prevented from loosening.
Specifically, the support plate 110 is provided with a first sliding groove 111 and a second sliding groove 112 along the horizontal direction; the first clamping part 120 is elastically connected in the first sliding groove 111 by a first return spring; the second clamping part 130 is elastically connected in the second sliding groove 112 through a second return spring; the elastic ends of the first reset spring and the second reset spring are oppositely arranged. When the first and second return springs are in the initial state, the first and second clamping portions 120 and 130 are pushed against the groove walls of the first and second sliding grooves 111 and 112, respectively.
When the battery cell clamping device is used, the first clamping part 120 and the second clamping part 130 are pushed outwards, the first clamping part 120 and the second clamping part 130 are opened, then the battery cell is inserted between the first clamping part 120 and the second clamping part 130, the first clamping part 120 and the second clamping part 130 are loosened, and reset occurs under the action of the first reset spring and the second reset spring, so that the battery cell is clamped and fixed.
In this embodiment, the distance between the first sliding groove 111 and the second sliding groove 112 is smaller than the thickness of the battery cell. Since the distance between the first sliding groove 111 and the second sliding groove 112 is smaller than the thickness of the battery cell, the battery cell can be clamped when the first clamping portion 120 and the second clamping portion 130 are reset.
In this embodiment, the inner sidewall of the communicating groove 210 extends inward to form a supporting flange 211. The transfer piece is supported by the support flange 211.
In the present embodiment, the pressing mechanism 300 includes a pressing head 310 and a pressing handle 320; the ram 310 and the press handle 320 are both rotatably connected to the welding base 200. It should be noted that the ram 310 includes a first metal frame 311, a second metal frame 312, and
example 2
This example provides a welding jig of the same structure as that of example 1. The difference is that:
in this embodiment, a first limiting block 121 is disposed at one end of the first clamping portion 120 away from the battery cell; the first limiting block 121 extends out of the first sliding groove 111; a second limiting block is arranged at one end, far away from the battery cell, of the second clamping part 130; the second limiting block extends out of the second sliding groove 112.
The clamping mechanism 100 further includes a first handle 140, a first main connecting arm 150, a first auxiliary connecting arm 160, and one end of the first auxiliary connecting arm 160 is rotatably connected between the first sliding slot 112 and the second sliding slot 112, and the other end of the first auxiliary connecting arm 160 is rotatably connected to one end of the main connecting arm 150; the other end of the first connecting main arm 150 is rotatably connected with a first grip 140; the bottom surface of the first connecting main arm 150 abuts against the first limiting block 121. The first connecting main arm 150 and the first connecting auxiliary arm 160 form a lever, and the length of the first connecting column arm is greater than that of the first connecting auxiliary arm 160, so that the first handle 140 can compress the first return spring with smaller force, and the clamping of the battery cell is facilitated.
The clamping mechanism 100 further comprises: the second handle, the second connecting main arm and the second connecting auxiliary arm; one end of the second connecting auxiliary arm is rotatably connected between the second sliding groove 112 and the second sliding groove, and the other end of the second connecting auxiliary arm is rotatably connected with one end of the second connecting main arm; the other end of the second connecting main arm is rotationally connected with a second handle; the bottom surface of the second connecting main arm is propped against the second limiting block. The lever is formed by the second connecting main arm and the second connecting auxiliary arm, and the length of the second connecting column arm is larger than that of the second connecting auxiliary arm, so that the second handle can compress the second reset spring with smaller force, and the clamping of the battery cell is facilitated.
Example 3
The embodiment provides a welding device for a lithium battery, comprising a device body and the welding fixture provided in any one of embodiments 1-2; the welding fixture is fixedly arranged on the device body.
In summary, the present utility model provides a welding fixture and a welding device for a lithium battery, wherein the welding fixture includes: clamping mechanism 100, welding base 200, and hold-down mechanism 300; the clamping mechanism 100 is arranged below the welding base 200; the pressing mechanism 300 is disposed above the welding base 200. Through setting up fixture 100, carry out the centre gripping to not unidimensional electric core, avoid when welding, take place not hard up between electric core and the switching piece, avoid taking place the rosin joint.
The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software programs referred to in the present application are all prior art, and the present application does not relate to any improvement of the software programs.
In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying 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 thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In addition, each functional unit in the embodiments of the present utility model may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (7)

1. A welding fixture, comprising:
the clamping mechanism, the welding base and the pressing mechanism;
the clamping mechanism is arranged below the welding base;
the pressing mechanism is arranged above the welding base;
the welding base is provided with a communication groove;
the clamping mechanism is suitable for clamping and fixing the battery cell and leaking the pole of the battery cell from the communication groove;
the pressing mechanism is suitable for fixing the adapter piece on the pole of the battery cell clamped by the clamping mechanism;
the clamping mechanism comprises a supporting plate, a first clamping part and a second clamping part;
the first clamping part and the second clamping part are oppositely arranged and are elastically connected to the supporting plate;
the support plate is provided with a first sliding groove and a second sliding groove along the horizontal direction;
the first clamping part is elastically connected in the first sliding groove through a first reset spring;
the second clamping part is elastically connected in the second sliding groove through a second reset spring;
the elastic ends of the first reset spring and the second reset spring are oppositely arranged.
2. The welding jig of claim 1 wherein,
the distance between the first sliding groove and the second sliding groove is smaller than the thickness of the battery cell.
3. The welding jig of claim 1 wherein,
a first limiting block is arranged at one end, far away from the battery cell, of the first clamping part;
the first limiting block extends out of the first sliding groove;
a second limiting block is arranged at one end, far away from the battery cell, of the second clamping part;
the second limiting block extends out of the second sliding groove.
4. The welding jig of claim 3 wherein,
the clamping mechanism also comprises a first handle, a first connecting main arm, a first connecting auxiliary arm,
One end of the first connecting auxiliary arm is rotationally connected between the first sliding groove and the second sliding groove, and the other end of the first connecting auxiliary arm is rotationally connected with one end of the first connecting main arm;
the other end of the first connecting main arm is rotationally connected with a first handle;
the bottom surface of the first connecting main arm is propped against the first limiting block.
5. The welding jig of claim 3 wherein,
the clamping mechanism further comprises: the second handle, the second connecting main arm and the second connecting auxiliary arm;
one end of the second connecting auxiliary arm is rotationally connected between the second sliding groove and the second sliding groove, and the other end of the second connecting auxiliary arm is rotationally connected with one end of the second connecting main arm;
the other end of the second connecting main arm is rotationally connected with a second handle;
the bottom surface of the second connecting main arm is propped against the second limiting block.
6. The welding jig of claim 1 wherein,
the inner side wall of the communication groove extends inwards to form a supporting flanging.
7. A welding device for lithium batteries, characterized by comprising a device body and a welding jig according to any one of claims 1 to 6;
the welding fixture is fixedly arranged on the device body.
CN202321683992.3U 2023-06-30 2023-06-30 Welding jig and welding device for lithium battery Active CN220515861U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321683992.3U CN220515861U (en) 2023-06-30 2023-06-30 Welding jig and welding device for lithium battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321683992.3U CN220515861U (en) 2023-06-30 2023-06-30 Welding jig and welding device for lithium battery

Publications (1)

Publication Number Publication Date
CN220515861U true CN220515861U (en) 2024-02-23

Family

ID=89937754

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321683992.3U Active CN220515861U (en) 2023-06-30 2023-06-30 Welding jig and welding device for lithium battery

Country Status (1)

Country Link
CN (1) CN220515861U (en)

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