CN213988973U

CN213988973U - Lithium battery protection board for equalizing charge

Info

Publication number: CN213988973U
Application number: CN202022863764.7U
Authority: CN
Inventors: 陈雪梅
Original assignee: Shenzhen Mailang Electronics Co ltd
Current assignee: Shenzhen Mailang Electronics Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-17
Anticipated expiration: 2030-12-02

Abstract

The utility model relates to the technical field of lithium batteries, and discloses a lithium battery protection plate for equalizing charge, which comprises an installation shell, a lithium battery main body is installed in the installation shell, a battery protection plate is installed on a lithium battery, an opening part of the installation shell is fixedly connected with a cover plate through a plurality of screws, and a hold-down mechanism is installed between the cover plate and the battery protection plate; hold-down mechanism includes two fixed plates, has seted up the spout on the fixed plate, the first spring of fixedly connected with on the cell wall of one side of spout, the other end fixedly connected with slider of first spring, one side of slider articulates there is the compression bar, and the one end that the slider was kept away from to the compression bar articulates on battery protection board's lateral wall, and the fixedly connected with installation section of thick bamboo is located at the center of apron, the section of thick bamboo end fixedly connected with second spring in the installation section of thick bamboo. The utility model provides a lithium battery protection board lets the lithium cell can the equalizing charge, strengthens the self security of lithium cell, can ensure simultaneously that the contact that charges is good, can not influence charge efficiency.

Description

Lithium battery protection board for equalizing charge

Technical Field

The utility model relates to a lithium cell technical field especially relates to a lithium battery protection board of equalizing charge.

Background

A lithium ion battery is a secondary battery (rechargeable battery) that mainly operates by movement of lithium ions between a positive electrode and a negative electrode. During the charge and discharge process, lithium ions are intercalated and deintercalated between the two electrodes: during charging, lithium ions are extracted from the positive electrode and are inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharging; in the using process of the lithium battery pack, the lithium battery pack protection board needs to be matched to protect the lithium battery monomer.

However, the lithium battery pack protection board can follow the vibration under the vibration of outside, leads to connecting between the inside lithium battery monomer not hard up, and electrode line department buckles under the repeated vibration, leads to charging bad contact, influences charging efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art lithium cell group protection shield and can follow the vibration under the vibration of outside, lead to connecting between the inside lithium cell monomer not hard up, and electrode line department buckles under the repeated vibration, lead to charging bad contact, influence the charging efficiency problem, and the lithium cell protection shield of equalizing charge who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lithium battery protection board for equalizing charge comprises a mounting shell, wherein a lithium battery main body is mounted in the mounting shell, a battery protection board is mounted on a lithium battery, a cover board is fixedly connected to an opening of the mounting shell through a plurality of screws, and a pressing mechanism is mounted between the cover board and the battery protection board;

hold-down mechanism includes two fixed plates, the spout has been seted up on the fixed plate, the first spring of fixedly connected with on the cell wall of one side of spout, the other end fixedly connected with slider of first spring, sliding connection between slider and the spout, one side of slider articulates there is the compression bar, the one end that the slider was kept away from to the compression bar articulates on the lateral wall of battery protection shield, the fixedly connected with installation section of thick bamboo of center department of apron, the bobbin base fixedly connected with second spring in the installation section of thick bamboo, the other end fixedly connected with of second spring and installation section of thick bamboo sliding connection's slide bar, the one end that the second spring was kept away from to the slide bar passes the nozzle of installation section of thick bamboo and outwards extends, and fixed connection is on the corresponding position of battery protection shield.

Preferably, the wall of the installation cylinder is provided with two symmetrically-arranged limiting grooves, the limiting grooves are connected with limiting blocks in a sliding mode, one ends, far away from the bottoms of the limiting grooves, of the limiting blocks penetrate through notches of the limiting grooves and extend outwards, and the limiting blocks are fixedly connected to corresponding rod walls of the sliding rods.

Preferably, the inside of the sliding groove is fixedly connected with a stabilizer bar, the stabilizer bar sequentially penetrates through the first spring and the sliding block, and the stabilizer bar is connected with the sliding block in a sliding mode.

Preferably, guide rails are fixedly connected to the side walls of the two sides in the mounting shell, moving blocks are connected to the guide rails in a sliding mode, and one sides of the moving blocks are fixedly connected to the corresponding side walls of the battery protection board.

Preferably, the lithium battery main body is fixedly sleeved with two buffering protective sleeves, and the bottom in the mounting shell is fixedly connected with a buffering pad.

Preferably, the outer surfaces of the mounting shell and the cover plate are plated with anticorrosive coatings.

Compared with the prior art, the utility model provides an equalizing charge's lithium battery protection shield possesses following beneficial effect:

1. this lithium battery protection board that equalizing charge, through setting up the installation shell, lithium cell main part, battery protection board, the apron, the fixed plate, the spout, first spring, the slider, compress tightly the pole, the installation section of thick bamboo, second spring and slide bar, first spring and second spring all are in the state of compression, under the combined action of first spring and second spring, compress tightly pole and slide bar and can break away from the fine pressure of battery protection board in lithium cell main part, when meetting vibrations, battery protection board can not take place with lithium cell main part and break away from, can ensure to charge and touch well, can not influence charge efficiency.

2. This lithium battery protection board that equalizing charge through setting up spacing groove and stopper, under the effect of stopper and spacing groove for the slide bar can not break away from in the installation section of thick bamboo, lets the device more reliable and more stable.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can ensure to charge to contact well, can not influence charge efficiency.

Drawings

Fig. 1 is a schematic front view of a lithium battery protection board for equalizing charge according to the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the lithium battery comprises a mounting shell 1, a lithium battery main body 2, a battery protection plate 3, a cover plate 4, a fixing plate 5, a sliding chute 6, a first spring 7, a sliding block 8, a pressing rod 9, a mounting barrel 10, a second spring 11, a sliding rod 12, a limiting groove 13, a limiting block 14, a stabilizing rod 15, a guide rail 16, a moving block 17, a buffering protection sleeve 18 and a buffering pad 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a lithium battery protection board for equalizing charge comprises a mounting shell 1, a lithium battery main body 2 is mounted in the mounting shell 1, a battery protection board 3 is mounted on a lithium battery, a cover plate 4 is fixedly connected to an opening of the mounting shell 1 through a plurality of screws, and a pressing mechanism is mounted between the cover plate 4 and the battery protection board 3;

the pressing mechanism comprises two fixing plates 5, a chute 6 is arranged on the fixing plates 5, a first spring 7 is fixedly connected on the wall of one side of the chute 6, the other end of the first spring 7 is fixedly connected with a sliding block 8, the sliding block 8 is connected with the chute 6 in a sliding manner, a pressing rod 9 is hinged on one side of the sliding block 8, one end of the pressing rod 9, far away from the sliding block 8, is hinged on the side wall of the battery protection plate 3, a mounting barrel 10 is fixedly connected at the center of the cover plate 4, a second spring 11 is fixedly connected at the barrel bottom in the mounting barrel 10, the other end of the second spring 11 is fixedly connected with a sliding rod 12 which is connected with the mounting barrel 10 in a sliding manner, one end of the sliding rod 12, far away from the second spring 11, penetrates through the barrel opening of the mounting barrel 10 and extends outwards and is fixedly connected on the corresponding position of the battery protection plate 3, the first spring 7 and the second spring 11 are both in a compressed state, under the combined action of the first spring 7 and the second spring 11, compressing tightly pole 9 and slide bar 12 can be with the fine pressure of battery protection shield 3 on lithium cell main part 2, when meetting vibrations, battery protection shield 3 can not break away from with lithium cell main part 2 emergence, can ensure that the contact that charges is good, can not influence charge efficiency.

The wall of the installation barrel 10 is provided with two limiting grooves 13 symmetrically arranged, the limiting grooves 13 are internally and slidably connected with limiting blocks 14, one ends, far away from the bottoms of the limiting grooves 13, of the limiting blocks 14 penetrate through notches of the limiting grooves 13 and extend outwards, the limiting blocks are fixedly connected to corresponding rod walls of the sliding rods 12, under the action of the limiting blocks 14 and the limiting grooves 13, the sliding rods 12 cannot be separated from the installation barrel 10, and the device is more stable and reliable.

Fixedly connected with stabilizer bar 15 in the spout 6, stabilizer bar 15 passes first spring 7 and the setting of slider 8 in proper order, sliding connection between stabilizer bar 15 and the slider 8 for slider 8 can not break away from in the spout 6.

Equal fixedly connected with guide rail 16 on the both sides lateral wall in the installation shell 1, sliding connection has movable block 17 on guide rail 16, and one side fixed connection of movable block 17 is on the corresponding lateral wall of battery protection shield 3 for battery protection shield 3 is more stable.

The lithium battery main part 2 is fixedly sleeved with two buffering protective sleeves 18, and a buffering cushion 19 is fixedly connected to the bottom in the mounting shell 1, so that the buffering protective function is achieved.

The outer surfaces of the mounting shell 1 and the cover plate 4 are both plated with anti-corrosion coatings, so that the anti-corrosion effect is achieved.

The utility model discloses in, first spring 7 and second spring 11 all are in the state of compression, under the combined action of first spring 7 and second spring 11, compression bar 9 and slide bar 12 can be with the fine pressure of battery protection shield 3 on lithium cell main part 2, when meetting vibrations, battery protection shield 3 can not break away from with lithium cell main part 2 emergence, can ensure to charge and contact well, can not influence charge efficiency, under the effect of stopper 14 and spacing groove 13, make slide bar 12 can not break away from in installation section of thick bamboo 10, let the device more reliable and more stable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A lithium battery protection board for balanced charging, comprising a mounting shell (1), characterized in that a lithium battery main body (2) is mounted in the mounting shell (1), and a lithium battery main body (2) is mounted on the There is a battery protection plate (3), a cover plate (4) is fixedly connected to the opening of the installation shell (1) by several screws, and a pressure plate (4) is installed between the cover plate (4) and the battery protection plate (3). tight institutions;

The pressing mechanism includes two fixing plates (5), a chute (6) is opened on the fixing plate (5), and a first spring ( 7), a slider (8) is fixedly connected to the other end of the first spring (7), the slider (8) is slidably connected with the chute (6), and one end of the slider (8) is slidably connected. A pressing rod (9) is hinged on the side, the end of the pressing rod (9) away from the slider (8) is hinged on the side wall of the battery protection plate (3), and the center of the cover plate (4) is fixed An installation cylinder (10) is connected, the bottom of the cylinder in the installation cylinder (10) is fixedly connected with a second spring (11), and the other end of the second spring (11) is fixedly connected to slide with the installation cylinder (10). The connected sliding rod (12), the end of the sliding rod (12) away from the second spring (11) passes through the cylinder opening of the installation cylinder (10) and extends outward, and is fixedly connected to the corresponding position of the battery protection plate (3). position.

2 . The lithium battery protection board for balanced charging according to claim 1 , wherein two symmetrically arranged limit slots ( 13 ) are provided on the cylinder wall of the installation cylinder ( 10 ). 3 . A limit block (14) is slidably connected in the limit slot (13), and one end of the limit block (14) away from the bottom of the limit slot (13) passes through the notch of the limit slot (13) and extends outward , and is fixedly connected to the corresponding rod wall of the sliding rod (12).

3. A lithium battery protection board for balanced charging according to claim 1, wherein a stabilizer bar (15) is fixedly connected in the chute (6), and the stabilizer bar (15) passes through in sequence A first spring (7) and a sliding block (8) are provided, and the stabilizer bar (15) and the sliding block (8) are slidably connected.

4. A lithium battery protection board for balanced charging according to claim 1, characterized in that, guide rails (16) are fixedly connected to both side walls in the installation shell (1), and the guide rails (16). 16) A moving block (17) is slidably connected thereon, and one side of the moving block (17) is fixedly connected to the corresponding side wall of the battery protection plate (3).

5 . The lithium battery protection board for balanced charging according to claim 1 , wherein the lithium battery main body ( 2 ) is fixedly sleeved with two buffer protection sleeves ( 18 ), and the mounting shell ( 5 . A buffer pad (19) is fixedly connected to the bottom in 1).

6 . The lithium battery protection board for balanced charging according to claim 1 , wherein the outer surfaces of the mounting shell ( 1 ) and the cover plate ( 4 ) are both plated with an anti-corrosion coating. 7 .