CN221352990U

CN221352990U - Battery with electric core protection machanism

Info

Publication number: CN221352990U
Application number: CN202421030564.5U
Authority: CN
Inventors: 涂敏; 万汉洪; 张静; 曾锦辉
Original assignee: Jiade Energy Technology Zhuhai Co ltd
Current assignee: Jiade Energy Technology Zhuhai Co ltd
Priority date: 2024-05-13
Filing date: 2024-05-13
Publication date: 2024-07-16
Anticipated expiration: 2034-05-13

Abstract

The utility model relates to a battery with a battery core protection mechanism, which utilizes a bracket structure to fix a battery core so as to prevent the risk of short circuit caused by collision of the battery core, prolong the service life of the battery and ensure the use safety. Including end box and the apron of upper and lower assembly setting be provided with a plurality of support unit in the end box, be provided with long arm and short arm on the support unit, every two the support unit is placed relatively and is constituteed a electric core support the corresponding long arm in the electric core support with the short arm connects into the support arm, the support arm with form electric core groove between the support unit inside wall still be provided with quantity and position on the support unit all with the electrode plate that electric core groove corresponds, still be provided with thermal-insulated plywood in the apron. The utility model is suitable for the technical field of battery processing equipment.

Description

Battery with electric core protection machanism

Technical Field

The utility model relates to the technical field of battery processing equipment, in particular to a battery with a battery core protection mechanism.

Background

In recent years, the application of lithium battery cells in the field of power batteries is more and more widespread, and the lithium battery cells are often used as power sources of electric vehicles, unmanned aerial vehicles and other devices, and as the electric vehicles frequently jolt in the running process, the unmanned aerial vehicles also frequently collide and fall off in the sailing process, and the batteries also have the risk of collision, the batteries are required to have certain mechanical strength so as to ensure that the batteries are not easy to damage in the use process. The traditional lithium battery cell battery directly uses glue to stick between the battery cells before welding the resistor, and the problem of displacement, friction and the like between the battery cells can be placed to a certain extent when the battery cells are protected by the glue, and then the PCM board is directly covered for soldering tin fixation. The battery structure is easy to break skin to cause short circuit of the battery core when glue is dispensed between the battery cores for fixation, and has spontaneous combustion risk; in addition, the PCM plate is directly contacted with the battery core, and when the battery generates collision and jolts in the use process, the PCM plate is burnt out by internal short circuit easily.

Disclosure of utility model

The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing the battery with the battery core protection mechanism, which is used for fixing the battery core by utilizing the bracket structure so as to prevent the risk of short circuit caused by collision of the battery core, prolong the service life of the battery and ensure the use safety.

The technical scheme adopted by the utility model is as follows: the utility model comprises a bottom box and a cover plate which are assembled up and down, wherein a plurality of bracket units are arranged in the bottom box, a long arm and a short arm are arranged on each bracket unit, each two bracket units are oppositely arranged to form a battery core bracket, the corresponding long arm and short arm in the battery core bracket are connected to form a supporting arm, a battery core groove is formed between the supporting arm and the inner side wall of the bracket unit, electrode plates with the number and the positions corresponding to the battery core groove are also arranged on each bracket unit, and a heat insulation laminate is also arranged in the cover plate.

Further, the support unit is a rectangular frame, a partition plate is further arranged at the middle position of the support unit, the partition plate equally divides the battery cell support into a left support and a right support, the support arms are respectively arranged in the left support and the right support in a centered manner, four groups of battery cell grooves are formed by the support arms, the partition plate and the inner side walls of the support unit together, and the four groups of battery cell grooves are respectively arranged in the left support and the right support in a surrounding manner.

Further, arc-shaped surfaces matched with the battery cells are arranged on the left and right inner side walls of the bracket unit, the corresponding positions of the partition plates and the corresponding positions of the support arms.

Further, the long arm and the short arm are hollow, and a connecting hole is formed in the position, corresponding to the short arm, on the support unit.

Further, the long arm, the short arm and the partition plate are integrally injection molded with the bracket unit, and the heat insulation laminate is made of a silica gel material.

Finally, a PCM plate is arranged between the lower part of the heat insulation layer plate and the battery cell, and a plurality of interfaces electrically connected with the PCM plate are arranged on the outer side of the cover plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. The battery cells placed in the bottom box are fixed through the battery cell support formed by the plurality of support units, so that the effect of fixing the battery cells to avoid collision is achieved, heat transfer between two adjacent battery cells is effectively isolated, and the service life and the use safety of the battery are effectively prolonged;

2. The heat insulation layer plate is arranged in the cover plate, the battery cell is completely isolated from the PCM plate, and a large amount of heat generated by the PCM is not directly transferred to the battery cell, so that the service life of the battery is further prolonged.

Therefore, the utility model utilizes the bracket structure to fix the battery core so as to avoid the risk of short circuit caused by collision of the battery core, and prolongs the service life and the use safety of the battery.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the bottom case;

FIG. 3 is a schematic structural view of the cell holder;

fig. 4 is a schematic structural view of the holder unit.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the utility model comprises a bottom box 1 and a cover plate 2 which are assembled up and down, wherein a plurality of bracket units 3 are arranged in the bottom box 1, a long arm 4 and a short arm 5 are arranged on each bracket unit 3, each two bracket units 3 are oppositely arranged to form a battery cell bracket, the corresponding long arm 4 and short arm 5 in the battery cell bracket are connected to form a supporting arm, a battery cell groove 6 is formed between the supporting arm and the inner side wall of the bracket unit 3, electrode plates 7 with the number and positions corresponding to the battery cell groove 6 are also arranged on each bracket unit 3, and a heat insulation laminate 8 is also arranged in the cover plate 2. In the present utility model, the long arm 4 and the short arm 5 are both hollow, and a connection hole 11 is further provided on the support unit 3 at a position corresponding to the short arm 5, and after the long arm 4 is connected with the short arm 5, in order to improve the stability of the battery cell support, a connection piece such as a pin may be inserted through the connection hole 11 to strengthen the connection between the long arm 4 and the short arm 5. A PCM board is further arranged between the lower portion of the heat insulation layer board 8 and the battery cell, and a plurality of interfaces electrically connected with the PCM board are arranged on the outer side of the cover plate 2.

In this embodiment, the support unit 3 is a rectangular frame, a partition plate 9 is further disposed at a middle position of the support unit, in the cell support, the partition plate 9 equally divides the cell support into a left support and a right support, the support arms are respectively centrally disposed in the left support and the right support, the support arms, the partition plate 9 and the inner side walls of the support unit 3 form four groups of cell slots 6 together, and the four groups of cell slots 6 are respectively disposed in the left support and the right support and surround the support arm array. Arc-shaped surfaces 10 matched with the battery cells are arranged on the left and right inner side walls of the bracket unit 3, the corresponding positions of the partition plates 9 and the corresponding positions of the supporting arms. In this embodiment, the long arm 4, the short arm 5, and the partition plate 9 are integrally injection-molded with the bracket unit 3, and the heat-insulating laminate 8 is made of a silicone material.

According to the utility model, the battery cells arranged in the bottom box 1 are fixed through the battery cell bracket consisting of the plurality of bracket units 3, so that the effect of fixing the battery cells to avoid collision is achieved, the heat transfer between two adjacent battery cells is effectively isolated, and the service life and the use safety of the battery are effectively prolonged; the heat insulation layer plate 8 is arranged in the cover plate 2, the battery cell is completely isolated from the PCM plate, and a large amount of heat generated by the PCM is not directly transferred to the battery cell, so that the service life of the battery is further prolonged.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a battery with electric core protection machanism, it includes end box (1) and apron (2) that upper and lower assembly set up, its characterized in that: be provided with a plurality of support unit (3) in end box (1), be provided with long arm (4) and short arm (5) on support unit (3), every two support unit (3) are placed relatively and are constituteed a electric core support the corresponding long arm (4) in electric core support with short arm (5) connect into the support arm, the support arm with form electric core groove (6) between support unit (3) inside wall still be provided with quantity and position on support unit (3) all with electrode plate (7) that electric core groove (6) correspond, still be provided with thermal-insulated plywood (8) in apron (2).

2. A battery with a cell protection mechanism according to claim 1, wherein: the support unit (3) is a rectangular frame, a partition plate (9) is further arranged at the middle position of the support unit, the partition plate (9) divides the battery cell support into a left support and a right support, the support arms are respectively arranged in the left support and the right support in a centering mode, the support arms, the partition plate (9) and the inner side walls of the support unit (3) form four groups of battery cell grooves (6) together, and the four groups of battery cell grooves (6) are respectively arranged in the left support and the right support in a surrounding mode.

3. A battery with a cell protection mechanism according to claim 2, wherein: arc-shaped surfaces (10) matched with the battery cells are arranged on the left and right inner side walls of the bracket unit (3), the corresponding positions of the partition plates (9) and the corresponding positions of the support arms.

4. A battery with a cell protection mechanism according to claim 3, wherein: the long arm (4) and the short arm (5) are hollow, and a connecting hole (11) is further formed in the support unit (3) at a position corresponding to the short arm (5).

5. The battery with cell protection mechanism of claim 4, wherein: the long arm (4), the short arm (5) and the partition plate (9) are integrally injection molded with the bracket unit (3), and the heat insulation laminate (8) is made of a silica gel material.

6. A battery with a cell protection mechanism according to claim 5, wherein: and a PCM plate is further arranged between the lower part of the heat insulation laminate (8) and the battery cell, and a plurality of interfaces electrically connected with the PCM plate are arranged on the outer side of the cover plate (2).