Tab protection clamp

Abstract

The utility model relates to the technical field of lithium ion batteries, in particular to a tab protection clamp which comprises a battery main body, tabs are symmetrically arranged on the battery main body, the tabs are clamped and protected through a protection mechanism, adjusting mechanisms are symmetrically arranged on the protection mechanism, and a control mechanism and a clamping mechanism are arranged in each adjusting mechanism. The protection mechanism is arranged to provide protection for the tabs in the actual production process, the exposed area of the positive and negative tabs is reduced, the short-circuit risk of the battery is effectively reduced, the yield loss caused by the damage, bending and the like of the tabs is reduced, the tabs with different widths can be conveniently and quickly clamped and protected through the control mechanism and the clamping mechanism, and the production efficiency is improved. And the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lithium ion battery, concretely relates to a tab protection fixture. BACKGROUND

[0002] With the performance breakthrough of lithium ion battery, lithium ion battery has penetrated into people's daily life and is widely used, with the increase of market and demand of lithium ion battery, battery manufacturing enterprises are also more and more, and the production line control standard is uneven, the safety warning line of battery production process cannot be ignored, among them, for soft package battery, the protection of charged battery after activation is crucial;General lithium ion battery production process includes three parts, respectively, the front process, assembly process and test process, the front process includes stirring, coating, cold pressing, striping, the assembly process includes winding, packaging, vacuum baking, liquid injection, the test section includes formation, high temperature aging, molding, capacity test, K value test, the lower bin process.

[0003] With the improvement of the technical level of suppliers in the current industry, the thickness of the tab is reduced from 100um to the commonly used 60um tab now, although a part of design space is obtained, but according to the actual production feedback, the 60um tab is soft, prone to folding, bending, even breaking and other problems, which brings a certain yield loss to production, especially after the completion of battery formation, a certain safety hazard is brought, the prior art cannot protect the tab from collision and damage, so as to appear short circuit and other conditions.

[0004] Based on this, a tab protection fixture is provided, which can eliminate the disadvantages of the existing device. UTILITY MODEL CONTENTS

[0005] In view of the above problems, a tab protection fixture is provided, which solves the problem that the tab is prone to damage caused by collision through a protection mechanism.

[0006] To solve the problems in the prior art, the utility model provides a tab protection fixture, which comprises a battery main body, the battery main body is symmetrically provided with tabs, the tabs are clamped and protected by a protection mechanism, the protection mechanism is symmetrically provided with an adjusting mechanism, and the adjusting mechanism is provided with a control mechanism and a clamping mechanism.

[0007] Preferably, the protection mechanism comprises first and second protection clamping plates, the first and second protection clamping plates are symmetrically arranged on both sides of the tab, the length of the first and second protection clamping plates is greater than the length of the tab, the first and second protection clamping plates are both provided with test holes, the first and second protection clamping plates are provided with adjusting mechanisms for controlling the distance, and the first and second protection clamping plates are made of elastic material.

[0008] Preferably, the adjusting mechanism comprises an adjusting cylinder and a sleeve, the sleeve is arranged on the first protective clamp plate, the adjusting cylinder is arranged on the second protective clamp plate, and the adjusting cylinder is in sliding fit with the inner wall of the sleeve at one end close to the sleeve.

[0009] Preferably, the control mechanism comprises a control block, a fixed block, a control column, a sliding plate, an abutting block and a first reset spring, the control block is arranged on the side of the adjusting cylinder away from the sleeve, the control block is connected with the control column through the side wall of the sleeve and the side wall of the fixed block at one end close to the sleeve, the fixed block is arranged on the inner wall of the sleeve at one end close to the control block, the control block is sleeved on the outer wall of the control column, the other end of the control column is connected with the abutting block, the abutting block is in abutting fit with the clamping mechanism, and the two ends of the first reset spring are connected with the side wall of the sliding plate and the side wall of the fixed block respectively.

[0010] Preferably, the clamping mechanism comprises a clamping block, a connecting rope, a fixed plate, a second reset spring and a clamping groove, the clamping block is symmetrically arranged in sliding fit on the inner wall of the adjusting cylinder, the fixed plate is symmetrically arranged on the inner wall of the adjusting cylinder at one end close to the clamping block, the two ends of the connecting rope are connected with the opposite sides of the clamping block respectively, the two ends of the second reset spring are connected with the side wall of the fixed plate and the side wall of the clamping block respectively, the clamping groove is symmetrically arranged on the side wall of the sleeve and in clamping fit with the clamping block, the clamping groove is provided with a plurality of clamping grooves, and the abutting block is in abutting fit with the middle position of the connecting rope.

[0011] The utility model discloses the beneficial effect compared with prior art is:

[0012] 1. The utility model discloses a protection mechanism can provide protection for the tab in actual production process, reduce the positive and negative tab bare leakage area, effectively reduce the risk of battery short circuit, reduce the tab breakage, the bending etc.

[0013] 2. The utility model discloses a control mechanism and clamping mechanism, can be convenient for the tab of different width is clamped and is protected fast, improved the efficiency of work. ACCURACY OF DRAWINGS

[0014] Figure 1 It is a kind of tab protection fixture's three-dimensional structure schematic diagram.

[0015] Figure 2 It is a kind of tab protection fixture's protection mechanism three-dimensional structure schematic diagram.

[0016] Figure 3 It is a kind of tab protection fixture's Figure 2 It is a kind of tab protection fixture's three-dimensional structure schematic diagram of partial enlargement of local A.

[0017] Figure 4 It is a kind of tab protection fixture's adjusting mechanism internal structure schematic diagram.

[0018] The figure marks are: 101, battery body; 102, tab; 103, test hole; 200, protection mechanism; 201, first protection clamping plate; 202, second protection clamping plate; 300, adjusting mechanism; 301, adjusting cylinder; 302, sleeve; 400, control mechanism; 401, control block; 402, fixed block; 403, control column; 404, sliding plate; 405, abutting block; 406, first reset spring; 500, clamping mechanism; 501, clamping block; 502, connecting rope; 503, fixed plate; 504, second reset spring; 505, clamping groove. DETAILED DESCRIPTION

[0019] In order to further understand the characteristics, technical means and specific purposes and functions achieved by the utility model, the utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0020] Referring to Figures 1-4 A tab protection clamp, comprising a battery body 101, the battery body 101 is symmetrically provided with tabs 102, the tabs 102 are clamped and protected by a protection mechanism 200, the protection mechanism 200 is symmetrically provided with an adjusting mechanism 300, the adjusting mechanism 300 is provided with a control mechanism 400 and a clamping mechanism 500.

[0021] The protection mechanism 200 is used for clamping and protecting the tabs 102, reducing the bare area of the positive and negative tabs 102, effectively reducing the risk of battery short circuit, reducing the probability loss caused by the breakage and bending of the tabs 102, and the adjusting mechanism 300 is used for clamping and protecting tabs 102 of different widths in cooperation with the control mechanism 400 and the clamping mechanism 500, improving the work efficiency.

[0022] Referring to Figures 1-2 The protection mechanism 200 comprises a first protection clamping plate 201 and a second protection clamping plate 202, the first protection clamping plate 201 and the second protection clamping plate 202 are symmetrically arranged on both sides of the tabs 102, the length of the first protection clamping plate 201 and the second protection clamping plate 202 is greater than the length of the tabs 102, the first protection clamping plate 201 and the second protection clamping plate 202 are provided with test holes 103, the first protection clamping plate 201 and the second protection clamping plate 202 are provided with adjusting mechanisms 300 for controlling the distance, and the first protection clamping plate 201 and the second protection clamping plate 202 are made of elastic material.

[0023] The first protective clamp plate 201 and the second protective clamp plate 202 are used for protecting the tab 102, wherein the length of the first protective clamp plate 201 and the second protective clamp plate 202 is greater than the length of the tab 102, and the general size is 10-16 mm, the thickness of the first protective clamp plate 201 and the second protective clamp plate 202 can be flexibly processed, preferably not more than the thickness of the battery, generally selected to be 1-2 mm, and the material can be selected from ordinary PET, acrylic, rubber, plastic and other materials, which have the characteristics of good processing performance, excellent insulation performance, low cost and easy acquisition, and the test hole 103 is used for the probe contact position for convenient capacity test and voltage test, and the shape and position of the hollow shape need to be determined according to the equipment probe and the positioning distance.

[0024] With reference to Figures 2-3 The adjusting mechanism 300 comprises an adjusting cylinder 301 and a sleeve 302, the sleeve 302 is arranged on the first protective clamp plate 201, the adjusting cylinder 301 is arranged on the second protective clamp plate 202, and the adjusting cylinder 301 is in sliding fit with the inner wall of the sleeve 302 at one end close to the sleeve 302.

[0025] Sliding the first protective clamp plate 201 and the second protective clamp plate 202 can drive the adjusting cylinder 301 and the sleeve 302 to slide, so as to adjust the distance between the first protective clamp plate 201 and the second protective clamp plate 202, so as to adapt to the tabs 102 of different widths.

[0026] With reference to Figures 3-4 The control mechanism 400 comprises a control block 401, a fixed block 402, a control column 403, a sliding plate 404, an abutting block 405 and a first reset spring 406, the control block 401 is arranged on the side of the adjusting cylinder 301 away from the sleeve 302, the control block 401 penetrates through the side wall of the sleeve 302 and the side wall of the fixed block 402 to connect the control column 403 at one end close to the sleeve 302, the fixed block 402 is arranged on the inner wall of the end of the sleeve 302 close to the control block 401, the control block 401 is sleeved on the outer wall of the control column 403, the other end of the control column 403 is connected with the abutting block 405, the abutting block 405 is in abutting fit with the clamping mechanism 500, and the two ends of the first reset spring 406 are connected with the side wall of the sliding plate 404 and the side wall of the fixed block 402 respectively.

[0027] Pressing the control block 401 drives the control column 403 and the sliding plate 404 to move downward, thereby driving the abutting block 405 to push the connecting rope 502, and when the control block 401 is released, the first reset spring 406 drives the control block 401, the control column 403 and the abutting block 405 to reset.

[0028] With reference to Figures 3-4The clamping mechanism 500 comprises a clamping block 501, a connecting rope 502, a fixed plate 503, a second reset spring 504 and a clamping groove 505. The clamping block 501 is symmetrically arranged on the inner wall of the adjusting cylinder 301. The fixed plate 503 is symmetrically arranged on the inner wall of the adjusting cylinder 301 near the clamping block 501. The connecting rope 502 is connected to the opposite sides of the clamping block 501. The second reset spring 504 is connected to the side wall of the fixed plate 503 and the side wall of the clamping block 501. The clamping groove 505 is symmetrically arranged on the side wall of the sleeve 302 and is clamped with the clamping block 501. The clamping groove 505 is provided with a plurality of clamping grooves. The abutting block 405 is abuttingly connected to the middle position of the connecting rope 502.

[0029] The abutting block 405 pushes the connecting rope 502 to drive the middle part of the connecting rope 502 to move downward. The resistance of the fixed plate 503 can drive the clamping block 501 to retract. The second reset spring 504 is used to drive the clamping block 501 to reset.

[0030] Working principle: first, align the middle position of the first protective clamp plate 201 and the second protective clamp plate 202 with the lug 102, press the control block 401 and make the first protective clamp plate 201 and the second protective clamp plate 202 move relatively, and clamp the lug 102. Because the first protective clamp plate 201 and the second protective clamp plate 202 are made of elastic material, they can stably clamp the lug 102. When the first protective clamp plate 201 and the second protective clamp plate 202 clamp the lug 102 to the appropriate position, loosen the control block 401 to drive the control column 403, the sliding plate 404 and the abutting block 405 to reset, so that the abutting block 405 is unlocked with the connecting rope 502. At this time, the second reset spring 504 drives the clamping block 501 to reset and cooperate with the clamping groove 505 to realize the clamping and fixing of the adjusting cylinder 301 and the sleeve 302, so as to clamp and protect the lug 102 by the first protective clamp plate 201 and the second protective clamp plate 202. When it needs to be unlocked, press the control block 401 to drive the sliding plate 404, the control column 403 and the abutting block 405 to push the connecting rope 502 to unlock the clamping block 501 and the clamping groove 505, and slide the adjusting cylinder 301 and the sleeve 302 to make the first protective clamp plate 201, the second protective clamp plate 202 and the lug 102 unlocked. This can provide protection for the lug 102 in actual production process, reduce the bare area of the positive and negative lug 102, effectively reduce the risk of short circuit of the battery main body 101, reduce the damage and bending of the lug 102, and also realize quick clamping and protection of lug 102 with different widths, thereby improving the work efficiency.

[0031] The above embodiment only expresses one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A tab protection jig, characterized by, Including battery body (101), symmetry is equipped with the lug (102) on the battery body (101), the lug (102) is clamped by the protection mechanism (200) and is protected, symmetry is equipped with the adjusting mechanism (300) on the protection mechanism (200), the adjusting mechanism (300) is equipped with control mechanism (400) and clamping mechanism (500) in.

2. The tab protection jig of claim 1, wherein, The protection mechanism (200) includes first protection clamping plate (201) and second protection clamping plate (202), the first protection clamping plate (201) and second protection clamping plate (202) are symmetrically arranged on both sides of the lug (102), the first protection clamping plate (201) and second protection clamping plate (202) are longer than the length of lug (102), the first protection clamping plate (201) and second protection clamping plate (202) are provided with test hole (103), the first protection clamping plate (201) and second protection clamping plate (202) are provided with adjusting mechanism (300) for controlling the spacing, the first protection clamping plate (201) and second protection clamping plate (202) are of elastic material.

3. The tab protection jig of claim 2, wherein, The adjusting mechanism (300) includes adjusting cylinder (301) and sleeve (302), the sleeve (302) is arranged on the first protection clamping plate (201), the adjusting cylinder (301) is arranged on the second protection clamping plate (202), the adjusting cylinder (301) is close to the sleeve (302) one end and the sleeve (302) inner wall sliding fit.

4. The tab protection jig of claim 1, wherein, The control mechanism (400) includes control block (401), fixed block (402), control column (403), sliding plate (404), abutment block (405) and first reset spring (406), the control block (401) is arranged on the adjusting cylinder (301) side away from the sleeve (302), the control block (401) is close to the sleeve (302) one end and passes through the sleeve (302) side wall and the fixed block (402) side wall control column (403) is connected, the fixed block (402) is arranged on the sleeve (302) close to the control block (401) one end inner wall, the control block (401) is sleeved on the control column (403) outer wall, the control column (403) other end is connected with abutment block (405), the abutment block (405) and clamping mechanism (500) abutment fit, the first reset spring (406) both ends are connected with sliding plate (404) side wall and fixed block (402) side wall respectively.

5. The tab protection jig of claim 4, wherein, The clamping mechanism (500) comprises a clamping block (501), a connecting rope (502), a fixed plate (503), a second reset spring (504) and a clamping groove (505), the clamping block (501) is symmetrically and slidably arranged on the inner wall of the adjusting cylinder (301), the fixed plate (503) is symmetrically arranged on the inner wall of the adjusting cylinder (301) near one end of the clamping block (501), the two ends of the connecting rope (502) are respectively connected to the opposite sides of the clamping block (501), the two ends of the second reset spring (504) are respectively connected to the side wall of the fixed plate (503) and the side wall of the clamping block (501), the clamping grooves (505) are symmetrically arranged on the side wall of the sleeve (302) and are clamped and matched with the clamping block (501), the clamping groove (505) is provided with a plurality of clamping grooves (505), and the abutting block (405) is abuttingly matched with the middle position of the connecting rope (502).

Images