CN219067025U

CN219067025U - Cylindrical lithium battery core with heat dissipation and explosion prevention functions

Info

Publication number: CN219067025U
Application number: CN202320264057.7U
Authority: CN
Inventors: 石浩
Original assignee: Huaibei Longfeng New Energy Technology Co ltd
Current assignee: Huaibei Longfeng New Energy Technology Co ltd
Priority date: 2023-02-21
Filing date: 2023-02-21
Publication date: 2023-05-23
Anticipated expiration: 2033-02-21

Abstract

The utility model relates to the technical field of lithium batteries and discloses a heat-dissipation explosion-proof cylindrical lithium battery cell, which comprises an equipment main body, a protective shell and a wrapping groove, wherein one side of the equipment main body is fixedly connected with the protective shell, the interior of the protective shell is fixedly connected with the wrapping groove, the interior of the wrapping groove is embedded and connected with a lithium battery cell, one side of the lithium battery cell is fixedly connected with a partition plate, the interior of the protective shell is fixedly connected with an explosion-proof transverse plate, one side of the top of the lithium battery cell is fixedly connected with a positive electrode end, the bottom of the lithium battery cell is fixedly connected with a negative electrode end, the size of the wrapping groove is identical with the diameter of the lithium battery cell, the lithium battery cell is arranged in the plurality of wrapping grooves and is arranged for being fixed, the partition plate is arranged between each lithium battery cell, heat transfer between barriers is realized, the explosion-proof transverse plate is transversely arranged in the middle part of the interior of the protective shell, explosion-proof force can be greatly reduced in the process of explosion generated when the temperature of the battery is too high, and the outside is protected.

Description

Cylindrical lithium battery core with heat dissipation and explosion prevention functions

Technical Field

The utility model relates to the technical field of lithium batteries, in particular to a heat-dissipation explosion-proof cylindrical lithium battery core.

Background

The lithium battery has the advantages of high specific energy, high power, good low-temperature performance and the like, and has wide application in the fields of military, industry and civil use, and the safety problem of the lithium battery is increasingly closed.

For the battery short circuit, the internal temperature of the battery suddenly rises and causes thermal runaway, and the internal air pressure of the battery rises, and the battery is extremely easy to explode at high temperature and high pressure, so that certain danger can be caused, heat can be generated when the battery works, the heat is not timely diffused, the situation of heat dissipation is easily caused, the explosion is caused, and the corresponding problem can be caused when the battery is impacted, so that the problem can not be well solved.

Therefore, how to design a heat dissipation explosion-proof cylindrical lithium battery cell becomes a problem that we need to solve currently.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a cylindrical lithium battery cell with heat dissipation and explosion prevention, which solves the problems of heat dissipation and explosion prevention.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a cylindrical lithium cell of heat dissipation explosion-proof, includes equipment main part, protective housing and parcel groove, one side fixedly connected with protective housing of equipment main part, the inside fixedly connected with parcel groove of protective housing, the inside embedding in parcel groove is connected with lithium cell, one side fixedly connected with baffle of lithium cell, the inside fixedly connected with explosion-proof diaphragm in middle part of protective housing, the top one side fixedly connected with positive terminal of lithium cell, the bottom fixedly connected with negative pole end of lithium cell, the top fixedly connected with roof of equipment main part, the bottom fixedly connected with bottom plate of equipment main part, the peripheral surface fixedly connected with honeycomb net of equipment main part, the inner wall fixedly connected with first protection pad of protective housing, one side fixedly connected with second protection pad of first protection pad, the peripheral one side fixedly connected with first mount pad of protective housing, the peripheral opposite side fixedly connected with second mount pad of protective housing.

Preferably, the size of the wrapping groove is identical with the diameter of the lithium battery cells, the partition plate is arranged between each lithium battery cell, and the explosion-proof transverse plate is transversely arranged at the middle part inside the protective shell.

Preferably, the honeycomb net covers the outer wall of the protective shell for heat dissipation, the first protective pad and the second protective pad cover the periphery of the inner wall of the protective shell, and the first mounting seat and the second mounting seat are used for being mounted and limited on the periphery of the bottom plate.

(III) beneficial effects

The utility model provides a heat-dissipation explosion-proof cylindrical lithium battery cell, which has the following beneficial effects:

(1) According to the utility model, the protective device is arranged, the sizes of the wrapping grooves are consistent with the diameters of the lithium battery cells, the lithium battery cells are arranged in the wrapping grooves during installation and are used for arranging, arranging and installing so as to be convenient for fixing, the partition plate is arranged between each lithium battery cell, heat transfer between barriers is blocked, and the explosion-proof transverse plate is transversely arranged in the middle part of the inside of the protective shell, so that explosion can be generated in the process of overhigh battery temperature, the acting force of explosion can be greatly reduced, and the outside is protected.

(2) According to the utility model, the heat dissipation device is arranged, the honeycomb net is covered on the outer wall of the protective shell and used for heat dissipation, so that heat loss is facilitated, the first protective pad and the second protective pad are covered on the periphery of the inner wall of the protective shell, an anti-collision effect can be achieved, the internal battery is protected, the first mounting seat and the second mounting seat are used for being mounted and limited on the periphery of the bottom plate and used for being primarily mounted and limited, and the mounting and the fixing are facilitated.

Drawings

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

FIG. 2 is a schematic diagram of a lithium battery cell according to the present utility model;

FIG. 3 is a schematic view of the external structure of the present utility model;

fig. 4 is a schematic side view of the present utility model.

In the figure: 1. an apparatus main body; 2. a protective housing; 3. a wrapping groove; 4. a lithium cell; 5. a partition plate; 6. an explosion-proof cross plate; 7. a positive terminal; 8. a negative terminal; 9. a top plate; 10. a bottom plate; 11. a cellular network; 12. a first protective pad; 13. a second protective pad; 14. a first mount; 15. and a second mounting seat.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus 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 the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby a feature defining "first," "second," or the like, may explicitly or implicitly include one or more such features, and in the description of the present utility model, a "plurality" means two or more, unless otherwise specifically limited.

Referring to fig. 1-4, the present utility model provides the following technical solutions: the utility model provides a cylindrical lithium cell of heat dissipation explosion-proof, including equipment body 1, protective housing 2 and parcel groove 3, one side fixedly connected with protective housing 2 of equipment body 1, the inside fixedly connected with parcel groove 3 of protective housing 2, the inside embedding of parcel groove 3 is connected with lithium cell 4, one side fixedly connected with baffle 5 of lithium cell 4, the inside fixedly middle part fixedly connected with explosion-proof diaphragm 6 of protective housing 2, top one side fixedly connected with positive terminal 7 of lithium cell 4, the bottom fixedly connected with negative terminal 8 of lithium cell 4, the top fixedly connected with roof 9 of equipment body 1, the bottom fixedly connected with bottom plate 10 of equipment body 1, the peripheral surface fixedly connected with honeycomb net 11 of equipment body 1, the inner wall fixedly connected with first protection pad 12 of protective housing 2, one side fixedly connected with second protection pad 13 of first protection pad 12, the peripheral one side fixedly connected with first mount pad 14 of protective housing 2, the peripheral opposite side fixedly connected with second mount pad 15 of protective housing 2.

Preferably, the size of the wrapping slots 3 is identical with the diameter of the lithium battery cells 4, the partition plates 5 are arranged between each lithium battery cell 4, the explosion-proof transverse plates 6 are transversely arranged at the middle part inside the protective shell 2, the protective device is formed by the protective shell 2, the wrapping slots 3, the lithium battery cells 4, the partition plates 5, the explosion-proof transverse plates 6, the positive electrode ends 7 and the negative electrode ends 8 together, for battery short circuit, the internal temperature of the battery is suddenly increased to cause thermal runaway, the internal air pressure of the battery is increased, the high temperature and the high pressure are extremely easy to cause explosion of the battery, a certain danger is caused, the size of the wrapping slots 3 is identical with the diameter of the lithium battery cells 4 through the arrangement of the protective device, the lithium battery cells 4 are arranged inside the wrapping slots 3 during installation and are used for fixing, the partition plates 5 are arranged between each lithium battery cell 4, heat transfer between barriers is blocked, the explosion-proof transverse plates 6 are transversely arranged at the middle part inside the protective shell 2, explosion-proof force can be greatly reduced in the process of explosion caused when the temperature of the battery is too high, and the outside is protected.

Preferably, the honeycomb net 11 covers the outer wall of the protective housing 2 for heat dissipation, the first protective pad 12 and the second protective pad 13 cover around the inner wall of the protective housing 2, the first mounting seat 14 and the second mounting seat 15 are used for mounting and limiting the periphery of the bottom plate 10, the top plate 9, the bottom plate 10, the honeycomb net 11, the first protective pad 12, the second protective pad 13, the first mounting seat 14 and the second mounting seat 15 jointly form a heat dissipation device, heat can be generated during battery operation, the heat is not timely diffused out, the situation of heat dissipation is easy to cause, the problem of explosion is easy to cause, and the situation of impact on the battery can also cause corresponding problems, the problem cannot be well solved, through the arrangement of the heat dissipation device, the honeycomb net 11 covers the outer wall of the protective housing 2 for heat dissipation, so that heat loss is convenient, the first protective pad 12 and the second protective pad 13 cover around the inner wall of the protective housing 2 can play a role in anti-collision, the internal battery is protected, the first mounting seat 14 and the second mounting seat 15 are used for mounting and limiting the periphery 10 for mounting and limiting the periphery of the protective housing 2, and the primary mounting and fixing is convenient.

To sum up, the workflow of the utility model: the size of the wrapping groove 3 is consistent with the diameter of the lithium battery cells 4, the lithium battery cells 4 are arranged in the wrapping grooves 3 during installation and used for placing, arranging and installing so as to be convenient for fixing, the partition board 5 is arranged between each lithium battery cell 4, heat transfer between barriers is achieved, the explosion-proof transverse board 6 is transversely arranged at the middle part of the inside of the protective shell 2 and can reduce the explosion force to a great extent in the process of explosion when the battery temperature is too high, the outside is protected, the honeycomb net 11 is covered on the outer wall of the protective shell 2 and used for heat dissipation so as to facilitate heat loss, the first protective pad 12 and the second protective pad 13 are covered on the periphery of the inner wall of the protective shell 2 and can play a role in preventing collision and protecting internal batteries, and the first mounting seat 14 and the second mounting seat 15 are used for mounting and limiting the periphery of the bottom plate 10 and are used for primary mounting and limiting, and convenient for mounting and fixing.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a cylindrical lithium cell of heat dissipation explosion-proof, includes equipment main part (1), protective housing (2) and parcel groove (3), its characterized in that: one side fixedly connected with protecting sheathing (2) of equipment main part (1), the inside fixedly connected with parcel groove (3) of protecting sheathing (2), the inside embedding of parcel groove (3) is connected with lithium cell (4), one side fixedly connected with baffle (5) of lithium cell (4), the inside fixedly connected with explosion-proof diaphragm (6) of middle part of protecting sheathing (2), the top one side fixedly connected with positive terminal (7) of lithium cell (4), the bottom fixedly connected with negative terminal (8) of lithium cell (4), the top fixedly connected with roof (9) of equipment main part (1), the bottom fixedly connected with bottom plate (10) of equipment main part (1), the peripheral surface fixedly connected with honeycomb net (11) of equipment main part (1), the inner wall fixedly connected with first protection pad (12) of protecting sheathing (2), one side fixedly connected with second protection pad (13) of first protection pad (12), peripheral one side fixedly connected with first protection pad (14) of protecting sheathing (2), peripheral side fixedly connected with first side (14) of protecting sheathing (2) is connected with second side (15).

2. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the size of the wrapping groove (3) is identical with the diameter of the lithium battery core (4).

3. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the separator (5) is installed between each lithium cell (4).

4. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the explosion-proof transverse plate (6) is transversely arranged at the middle part inside the protective shell (2).

5. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the honeycomb net (11) covers the outer wall of the protective shell (2) and is used for heat dissipation.

6. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the first protective pad (12) and the second protective pad (13) are covered around the inner wall of the protective housing (2).

7. The heat-dissipating explosion-proof cylindrical lithium battery cell according to claim 1, wherein: the first mounting seat (14) and the second mounting seat (15) are used for being mounted and limited on the periphery of the bottom plate (10).