Tab structure for improving internal resistance of flexible soft package battery

Abstract

The invention discloses a tab structure for improving the internal resistance of a flexible soft package battery, relates to the technical field of battery tabs, and aims to solve the problem that the tabs of the battery are loosened or fall off after being used for a long time when the conventional soft package battery is used. The second inner cavity is formed in the mounting plate, the two sides of the interior of the second inner cavity are each provided with a first turnover fixing plate, and the two first turnover fixing plates are rotationally connected with the mounting plate through second rotating shaft bodies; first reserved openings are formed in the two first overturning fixing plates correspondingly, the first reserved openings and the first overturning fixing plates are integrally formed, mounting openings are formed in the lower end face of the mounting plate, the number of the mounting openings is two, and the two mounting openings and the mounting plate are integrally formed; two metal conduction pieces are arranged on one sides of the interiors of the two installation openings, and an installation end is arranged in the second inner cavity.

Description

Technical Field

[0001] The invention relates to the technical field of battery tabs, and in particular to a tab structure for improving the internal resistance of a flexible soft-pack battery. Background Art

[0002] Tabs are a raw material for lithium-ion polymer battery products. For example, mobile phone batteries, Bluetooth batteries, laptop batteries, etc. that we use in our lives all need tabs. Batteries are divided into positive and negative poles, and tabs are metal conductors that lead the positive and negative poles out of the battery core. In layman's terms, the tabs at the positive and negative poles of the battery are the contact points during charging and discharging. This contact point is not the copper sheet we see on the outside of the battery, but a connection inside the battery. Tabs are divided into three types of materials. The positive electrode of the battery uses aluminum (Al) material, the negative electrode uses nickel (Ni) material, and the negative electrode also has copper-plated nickel (Ni-Cu) material. They are all composed of two parts: film and metal strip.

[0003] For example, the announcement number is CN214043920U, and the name of the Chinese authorized patent is (a soft-pack battery structure), including: a number of soft-pack batteries, a busbar, a protection plate and a box assembly, the upper end of the soft-pack battery is provided with an aluminum positive pole ear and a copper negative pole ear, the busbar is provided with a number of gaps at intervals, the positive pole ear and the negative pole ear pass through the gaps and then bend into an L shape, the busbar is laser welded to the positive pole ear and the negative pole ear respectively, the protection plate is provided on the busbar of the positive pole ear, and a number of the soft-pack batteries are installed side by side in the box assembly. The utility model uses a laser welding process to weld the busbar on the pole ear of the soft-pack battery, with high welding strength and good welds; a protection plate is added to the busbar of the aluminum positive pole ear of the soft-pack battery, and the protection plate is used to protect the pole ear welding cracking and desoldering caused by product vibration and deformation, thereby improving the problem of large welding internal resistance and excessive current temperature rise caused by material characteristics of the product.

[0004] However, when the existing soft-pack batteries are in use, the battery tabs may become loose or fall off after a long time of use; therefore, they do not meet the existing needs. We have proposed a tab structure for improving the internal resistance of flexible soft-pack batteries. Summary of the invention

[0005] The object of the present invention is to provide a tab structure for improving the internal resistance of a flexible soft-pack battery, so as to solve the problem that the tabs of the battery may become loose or fall off after a long time of use in the existing soft-pack battery mentioned in the background art.

[0006] To achieve the above object, the present invention provides the following technical solution: a tab structure for improving the internal resistance of a flexible soft-pack battery, comprising: a soft-pack battery body, a protective frame is arranged outside the soft-pack battery body, and two protective frames are arranged, and a mounting plate is arranged at one end of the soft-pack battery body;

[0007] Also includes:

[0008] A second inner cavity is installed inside the mounting plate, first flip fixing plates are arranged on both sides of the second inner cavity, and two first flip fixing plates are arranged, and the two first flip fixing plates are rotatably connected to the mounting plate through a second rotating shaft, first reserved openings are arranged inside the two first flip fixing plates, and the first reserved openings are formed integrally with the first flip fixing plate, a mounting opening is arranged inside the lower end surface of the mounting plate, and two mounting openings are arranged, and the two mounting openings are formed integrally with the mounting plate, a metal conductive sheet is arranged on one side of the two mounting openings, and two metal conductive sheets are arranged, a mounting end is arranged inside the second inner cavity, mounting cavities are arranged on both sides of the second inner cavity, and two mounting cavities are arranged, and the two mounting cavities are formed integrally with the mounting plate, and grooves are arranged on both sides of the inner walls of the two grooves;

[0009] A protective cover is installed on the lower end surface of the mounting end head, two protective covers are provided, the lower end surfaces of the two protective covers are provided with a fixing plate, telescopic springs are provided inside the two protective covers, the upper end surface of the telescopic spring is fixedly connected to the lower end surface of the mounting end head, the lower end surface of the telescopic spring is fixedly connected to the fixing plate, mounting rods are provided on both sides of the lower end surface of the mounting end head, and there are two mounting rods, both mounting rods are formed integrally with the mounting end head, anti-slip protrusions are provided on both sides of the outer walls of the two mounting rods, and there are four anti-slip protrusions, and the four anti-slip protrusions are hot-melt connected to the mounting rods.

[0010] Preferably, second reserved openings are provided on both sides of the interior of the mounting end head, and two second reserved openings are provided, the two second reserved openings are formed integrally with the mounting end head, battery pole ear strips are provided inside the two second reserved openings, and one end of the battery pole ear strip passes through the mounting plate and the mounting end head and extends to the interior of the soft-pack battery body.

[0011] Preferably, rotating rods are arranged around the upper end surface of the mounting plate, and there are four rotating rods. The four rotating rods are rotatably connected to the mounting plate through the first rotating shaft body, and there are four first rotating shaft bodies.

[0012] Preferably, second anti-slip pads are provided on both sides of the inner walls of the two protection frames, and a plurality of second anti-slip pads are provided, and the plurality of second anti-slip pads are all connected to the inner walls of the protection frames by hot-melt connection.

[0013] Preferably, a second flip fixing plate is provided on one side of the two protective frames, and two second flip fixing plates are provided, the two second flip fixing plates are rotatably connected to the protective frames through a third rotating shaft, and two third rotating shafts are provided, a third flip fixing plate is provided on the outer side of the two second flip fixing plates, the third flip fixing plate is rotatably connected to the second flip fixing plate through a fourth rotating shaft, and two fourth rotating shafts are provided.

[0014] Preferably, a fixing cavity is provided inside one side of the upper end surface of the two protection frames, a fixing buckle shaft is provided inside the fixing cavity, and the fixing buckle shaft is formed integrally with the protection frame.

[0015] Preferably, a buckle rod is provided on the inner wall of one end of the third flip fixing plate, and the buckle rod is integrally formed with the inner wall of one end of the third flip fixing plate.

[0016] Preferably, a first anti-slip pad is provided on the lower end surface of the fixing plate, and the first anti-slip pad is connected to the lower end surface of the fixing plate by hot-melt connection.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention can install one end of the battery pole ear strip 500 on one side of the metal conductive sheet 104 inside the mounting opening 206 by means of the mounting plate and the mounting end head arranged on the main body of the soft-pack battery, and the rotating rod, the first rotating shaft body, the second inner cavity, the first flip fixing plate, the first reserved opening, the second rotating shaft body, the mounting rod, the anti-slip protrusion block, the protective cover, the fixing plate and the telescopic spring arranged inside the mounting plate and the mounting end head. After the placement is completed, the first flip fixing plate 204 is rotated by the second rotating shaft body 205, and the end of the battery pole ear strip 500 extending into the mounting opening 206 is buckled and fixed, and the other end of the battery pole ear strip 500 is fixed by the first reserved opening 2 0401 extends out and then is exposed through the second reserved opening 307 inside the mounting terminal 300. When the mounting terminal 300 is fixed on the mounting plate 200, the rotating rod 201 is rotated by the first rotating shaft 202 to buckle the mounting terminal 300 in the second inner cavity 203 inside the mounting plate 200. When the mounting terminal 300 is fixed, the telescopic spring 305 and the fixing plate 304 provided below the mounting terminal 300 can be used to reinforce the first flip fixing plate 204 below by the telescopic spring 305 when fixed, thereby avoiding the problem that the battery pole ear of the existing soft package battery will become loose or fall off after a long time of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of the mounting plate and the mounting end head of the present invention;

[0021] Figure 3 It is a schematic diagram of the internal perspective structure of the mounting plate of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of one end of the soft-pack battery body of the present invention;

[0023] Figure 5 It is a schematic diagram of the lower end surface structure of the mounting end head of the present invention;

[0024] Figure 6 It is a schematic diagram of the local structure of the protection frame of the present invention;

[0025] In the figure: 100, soft pack battery body; 102, installation cavity; 103, groove; 104, metal conductive sheet; 200, installation plate; 201, rotating rod; 202, first rotating shaft; 203, second inner cavity; 204, first flip fixing plate; 20401, first reserved opening; 205, second rotating shaft; 206, installation opening; 300, installation end; 301, installation rod; 302, anti-slip protrusion ; 303, protective cover; 304, fixed plate; 305, telescopic spring; 306, first anti-skid pad; 307, second reserved opening; 400, protective frame; 401, second flip fixed plate; 402, third rotating shaft; 403, third flip fixed plate; 404, fourth rotating shaft; 405, second anti-skid pad; 406, buckle rod; 407, fixed cavity; 408, fixed buckle shaft; 500, battery ear strip. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1

[0028] See also Figure 1-4 The present invention provides an embodiment: a tab structure for improving the internal resistance of a flexible soft-pack battery, comprising: a soft-pack battery body 100, a protective frame 400 is disposed outside the soft-pack battery body 100, and two protective frames 400 are disposed, and a mounting plate 200 is disposed at one end of the soft-pack battery body 100;

[0029] Also includes:

[0030] The second inner cavity 203 is installed inside the mounting plate 200. The second inner cavity 203 is provided with first flip fixing plates 204 on both sides thereof. The first flip fixing plates 204 are provided with two first flip fixing plates 204. The two first flip fixing plates 204 are rotatably connected to the mounting plate 200 through the second rotating shaft 205. The two first flip fixing plates 204 are provided with first reserved openings 20401 inside, and the first reserved openings 20401 are formed integrally with the first flip fixing plates 204. The lower end surface of the mounting plate 200 is provided with a mounting opening 20401 inside. 6, and there are two mounting ports 206, both of which are formed integrally with the mounting plate 200, a metal conductive sheet 104 is provided on one side of the two mounting ports 206, and two metal conductive sheets 104 are provided, a mounting terminal 300 is provided inside the second inner cavity 203, mounting cavities 102 are provided on both sides of the second inner cavity 203, and two mounting cavities 102 are provided, both of which are formed integrally with the mounting plate 200, and grooves 103 are provided on both sides of the inner walls of the two grooves 103;

[0031] A protective cover 303 is installed on the lower end surface of the mounting end 300. Two protective covers 303 are provided. The lower end surfaces of the two protective covers 303 are provided with a fixing plate 304. Telescopic springs 305 are provided inside the two protective covers 303. The upper end surface of the telescopic spring 305 is fixedly connected to the lower end surface of the mounting end 300, and the lower end surface of the telescopic spring 305 is fixedly connected to the fixing plate 304. Mounting rods 301 are provided on both sides of the lower end surface of the mounting end 300, and there are two mounting rods 301. The two mounting rods 301 are integrally formed with the mounting end 300. Anti-skid protrusions 302 are provided on both sides of the outer walls of the two mounting rods 301, and there are four anti-skid protrusions 302. The four anti-skid protrusions 302 are hot-melt connected to the mounting rods 301.

[0032] One end of the battery ear bar 500 is installed on one side of the metal conductive sheet 104 inside the mounting port 206. After placement, the first flip fixing plate 204 is rotated through the second rotating shaft 205, and the end of the battery ear bar 500 extending into the mounting port 206 is snap-fastened, and the other end of the battery ear bar 500 extends through the first reserved opening 20401, and then is exposed through the second reserved opening 307 inside the mounting end 300. When the mounting end 300 is fixed on the mounting plate 200, the rotating rod 201 is rotated through the first rotating shaft 202, and the mounting end 300 is snap-fastened in the second inner cavity 203 inside the mounting plate 200. When the mounting end 300 is fixed, the telescopic spring 305 and the fixing plate 304 arranged below the mounting end 300 can be used to reinforce the first flip fixing plate 204 below when it is fixed.

[0033] Example 2

[0034] See also Figure 1 and Figure 2 , second reserved openings 307 are provided on both sides of the interior of the mounting end 300, and there are two second reserved openings 307, and the two second reserved openings 307 are formed integrally with the mounting end 300, and battery pole ear strips 500 are provided inside the two second reserved openings 307, and one end of the battery pole ear strip 500 passes through the mounting plate 200 and the mounting end 300 and extends to the interior of the soft-pack battery body 100, and rotating rods 201 are provided around the upper end surface of the mounting plate 200, and there are four rotating rods 201, and the four rotating rods 201 are rotatably connected to the mounting plate 200 through the first rotating shaft body 202, and there are four first rotating shaft bodies 202.

[0035] See also Figure 6 Second anti-skid pads 405 are disposed on both sides of the inner walls of the two protection frames 400 , and a plurality of second anti-skid pads 405 are disposed, and the plurality of second anti-skid pads 405 are hot-melt connected to the inner walls of the protection frames 400 .

[0036] The provision of the second anti-skid pad 405 can effectively avoid the problem of position displacement caused by low friction between components.

[0037] See also Figure 1 and Figure 6 , a second flip fixing plate 401 is provided on one side of the two protection frames 400, and two second flip fixing plates 401 are provided, the two second flip fixing plates 401 are rotatably connected to the protection frame 400 through a third rotating shaft body 402, and two third rotating shaft bodies 402 are provided, a third flip fixing plate 403 is provided on the outer side of the two second flip fixing plates 401, the third flip fixing plate 403 is rotatably connected to the second flip fixing plate 401 through a fourth rotating shaft body 404, and two fourth rotating shaft bodies 404 are provided, a fixing cavity 407 is provided inside one side of the upper end surface of the two protection frames 400, a fixing buckle shaft 408 is provided inside the fixing cavity 407, and the fixing buckle shaft 408 is formed integrally with the protection frame 400, and a buckle rod 406 is provided on the inner wall of one end of the third flip fixing plate 403, and the buckle rod 406 is formed integrally with the inner wall of one end of the third flip fixing plate 403.

[0038] The fixed buckle shaft 408 and the buckle rod 406 on the third flip fixing plate 403 allow the third flip fixing plate 403 to be securely connected and fixed to the protection frame 400 .

[0039] See also Figure 5A first anti-skid pad 306 is provided on the lower end surface of the fixing plate 304 , and the first anti-skid pad 306 is connected to the lower end surface of the fixing plate 304 by hot-melt connection.

[0040] The provision of the first anti-slip pad 306 can effectively reduce the positional offset between the two elements.

[0041] Working principle: During installation and assembly, one end of the battery pole ear strip 500 is installed on one side of the metal conductive sheet 104 inside the installation port 206. After placement, the first flip fixing plate 204 is rotated through the second rotating shaft 205, and the end of the battery pole ear strip 500 extending into the installation port 206 is buckled and fixed. The other end of the battery pole ear strip 500 extends through the first reserved opening 20401, and then passes through the second reserved opening 307 inside the installation terminal 300 to be exposed. The installation terminal 300 is installed. When the plate 200 is fixed, the rotating rod 201 is rotated through the first rotating shaft 202 to snap the mounting end 300 into the second inner cavity 203 inside the mounting plate 200, and when the mounting end 300 is fixed, the telescopic spring 305 and the fixed plate 304 arranged below the mounting end 300 can be used to reinforce the first flip fixed plate 204 below when fixed, and the outside of the soft-pack battery body 100 is tightly and quickly operated by the protective frame 400.

[0042] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A tab structure for improving the internal resistance of a flexible soft-pack battery, comprising a soft-pack battery body (100), a protective frame (400) being arranged outside the soft-pack battery body (100), and two protective frames (400) being arranged, and a mounting plate (200) being arranged at one end of the soft-pack battery body (100); Features: Also includes: A second inner cavity (203) is installed inside the mounting plate (200), first flip fixing plates (204) are provided on both sides inside the second inner cavity (203), and two first flip fixing plates (204) are provided, and the two first flip fixing plates (204) are rotatably connected to the mounting plate (200) through a second rotating shaft (205), and first reserved openings (20401) are provided inside the two first flip fixing plates (204), and the first reserved openings (20401) are formed integrally with the first flip fixing plates (204), and a mounting opening (206) is provided inside the lower end surface of the mounting plate (200), There are two installation openings (206), and the two installation openings (206) are formed integrally with the installation plate (200). A metal conductive sheet (104) is provided on one side of the two installation openings (206), and there are two metal conductive sheets (104). A mounting end (300) is provided inside the second inner cavity (203). Installation cavities (102) are provided on both sides of the second inner cavity (203), and there are two installation cavities (102). The two installation cavities (102) are formed integrally with the installation plate (200), and grooves (103) are provided on both sides of the inner walls of the two grooves (103); A protective sleeve (303) is mounted on the lower end surface of the mounting end head (300), two protective sleeves (303) are provided, the lower end surfaces of the two protective sleeves (303) are both provided with a fixing plate (304), and the interiors of the two protective sleeves (303) are both provided with a telescopic spring (305), the upper end surface of the telescopic spring (305) is fixedly connected to the lower end surface of the mounting end head (300), and the lower end surface of the telescopic spring (305) is connected to the fixing plate (304). ) are fixedly connected, both sides of the lower end surface of the mounting end head (300) are provided with mounting rods (301), and there are two mounting rods (301), and the two mounting rods (301) are formed integrally with the mounting end head (300), and both sides of the outer walls of the two mounting rods (301) are provided with anti-skid protrusions (302), and there are four anti-skid protrusions (302), and the four anti-skid protrusions (302) are hot-melt connected to the mounting rods (301).

2. According to claim 1, a tab structure for improving the internal resistance of a flexible soft-pack battery is characterized in that: Second reserved openings (307) are provided on both sides of the interior of the mounting terminal (300), and two second reserved openings (307) are provided, and the two second reserved openings (307) are formed integrally with the mounting terminal (300), and battery pole ear strips (500) are provided inside the two second reserved openings (307), and one end of the battery pole ear strip (500) passes through the mounting plate (200) and the mounting terminal (300) and extends to the interior of the soft-pack battery body (100).

3. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 2, characterized in that: Rotating rods (201) are arranged around the upper end surface of the mounting plate (200), and there are four rotating rods (201). The four rotating rods (201) are rotatably connected to the mounting plate (200) via a first rotating shaft (202), and there are four first rotating shafts (202).

4. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 3, characterized in that: Second anti-skid pads (405) are arranged on both sides of the inner walls of the two protection frames (400), and a plurality of second anti-skid pads (405) are arranged, and the plurality of second anti-skid pads (405) are all connected to the inner walls of the protection frames (400) by hot-melt connection.

5. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 4, characterized in that: A second flip fixing plate (401) is disposed on one side of the two protection frames (400), and two second flip fixing plates (401) are disposed. The two second flip fixing plates (401) are rotationally connected to the protection frame (400) via a third rotating shaft (402), and two third rotating shafts (402) are disposed. A third flip fixing plate (403) is disposed on the outer side of the two second flip fixing plates (401), and the third flip fixing plate (403) is rotationally connected to the second flip fixing plate (401) via a fourth rotating shaft (404), and two fourth rotating shafts (404) are disposed.

6. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 5, characterized in that: A fixed cavity (407) is provided inside one side of the upper end surface of the two protection frames (400), a fixed buckle shaft (408) is provided inside the fixed cavity (407), and the fixed buckle shaft (408) is formed integrally with the protection frame (400).

7. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 6, characterized in that: A buckle rod (406) is provided on the inner wall of one end of the third flip fixing plate (403), and the buckle rod (406) and the inner wall of one end of the third flip fixing plate (403) are formed in one piece.

8. The ear structure for improving the internal resistance of a flexible soft-pack battery according to claim 7, characterized in that: The lower end surface of the fixing plate (304) is provided with a first anti-skid pad (306), and the first anti-skid pad (306) is connected to the lower end surface of the fixing plate (304) by thermal melting.

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