CN212725487U

CN212725487U - High-temperature-resistant lithium battery

Info

Publication number: CN212725487U
Application number: CN202021440567.8U
Authority: CN
Inventors: 朱维权; 梁百胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-16
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses a high temperature resistant lithium cell, including shell, flat board, heat dissipation cover, first fin, radiating groove, first heat dissipation silica gel layer, electric core, heat conduction metal cover plate, bolt, rubber seal ring, second heat dissipation silica gel layer, second fin and third fin. The utility model discloses it is rational in infrastructure, through dull and stereotyped, the heat dissipation cover provides the installation for electric core, further fill through the setting on first heat dissipation silica gel layer, be convenient for electric core heat transfer to the heat dissipation cover on, set up first fin simultaneously and increased heat radiating area, thereby the radiating effect has been improved, further top has second heat dissipation silica gel layer and second fin, be convenient for heat transfer to the heat conduction metal cover plate on, heat radiating area has been improved through the third fin, thereby the radiating effect has further been improved.

Description

High-temperature-resistant lithium battery

Technical Field

The utility model relates to a lithium cell specifically is a high temperature resistant lithium cell, belongs to lithium cell application technical field.

Background

The lithium battery is a battery which uses lithium metal or lithium alloy as a negative electrode material and uses a nonaqueous electrolyte solution; with the development of science and technology, lithium batteries have become the mainstream; generally, the battery comprises a shell, a plurality of battery cells are arranged in the shell, and the battery cells are connected in series or in parallel for use.

The outside of the existing lithium battery is wrapped by the shell, so that a heat dissipation structure is lacked, heat is difficult to dissipate, and high-temperature resistance performance is poor, so that the whole use is influenced, and the service life of the lithium battery is influenced. Therefore, a high temperature resistant lithium battery is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high temperature resistant lithium cell just in order to solve above-mentioned problem.

The utility model discloses a technical scheme realizes above-mentioned purpose, a high temperature resistant lithium cell, including shell and the flat board of fixed mounting in the shell inside, the even fixed gomphosis of flat board surface has a plurality of heat dissipation cover, evenly be provided with a plurality of first fin on the outer mantle wall of heat dissipation cover, the inside clearance gomphosis of heat dissipation cover has the electric core, it has first heat dissipation silica gel layer to fill between electric core and the heat dissipation cover, open the radiating groove on the conch wall of shell;

the heat-conducting metal cover plate is fixedly covered at the top of the shell, a rubber sealing washer is clamped between the heat-conducting metal cover plate and the shell, a second heat-radiating silica gel layer is filled between the flat plate and the heat-conducting metal cover plate, a plurality of third heat radiating fins distributed at equal intervals are arranged at the top of the heat-conducting metal cover plate, and a plurality of second heat radiating fins distributed at equal intervals are arranged at the bottom of the heat-conducting metal cover plate.

Preferably, the surface of the flat plate is provided with a plurality of through holes which are uniformly distributed, the through holes are embedded with the top end of the heat dissipation sleeve, and the heat dissipation sleeve is welded with the flat plate in a seamless mode.

Preferably, the number of the heat dissipation grooves is a plurality, the plurality of heat dissipation grooves are distributed at equal intervals, and the heat dissipation grooves are of U-shaped structures.

Preferably, bolts are installed between the four corners of the heat-conducting metal cover plate and the top of the shell.

Preferably, the rubber sealing washer is fixedly bonded with the bottom edge of the heat-conducting metal cover plate.

Preferably, the periphery of the flat plate and the inner wall of the shell are welded in a seamless mode.

The utility model has the advantages that:

1. the high-temperature-resistant lithium battery is provided with an electric core through a flat plate and a heat dissipation sleeve, and is further filled through the arrangement of a first heat dissipation silica gel layer, so that the heat of the electric core is conveniently transferred to the heat dissipation sleeve;

2. this kind of high temperature resistant lithium cell closure is better, seals the installation to inside electric core, has better waterproof performance, has avoided water to get into inside, has the guard action.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

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

FIG. 2 is a schematic view of the bottom structure of the flat plate of the present invention;

fig. 3 is a schematic view of the structure of the housing and the heat sink of the present invention.

In the figure: 1. the heat dissipation structure comprises a shell, 2, a flat plate, 3, a heat dissipation sleeve, 4, a first heat dissipation fin, 5, a heat dissipation groove, 6, a first heat dissipation silica gel layer, 7, an electric core, 8, a heat conduction metal cover plate, 9, a bolt, 10, a rubber sealing gasket, 11, a second heat dissipation silica gel layer, 12, a second heat dissipation fin, 13 and a third heat dissipation fin.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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 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. 1-3, a high temperature resistant lithium battery includes a housing 1 and a flat plate 2 fixedly mounted inside the housing 1, wherein a plurality of heat dissipation sleeves 3 are uniformly fixed and embedded on the surface of the flat plate 2, a plurality of first heat dissipation fins 4 are uniformly arranged on the outer casing wall of the heat dissipation sleeves 3, a battery core 7 is embedded in the heat dissipation sleeves 3 in a gap manner, a first heat dissipation silica gel layer 6 is filled between the battery core 7 and the heat dissipation sleeves 3, and a heat dissipation groove 5 is formed in the casing wall of the housing 1;

the fixed cover in top of shell 1 has heat conduction metal apron 8, the centre gripping has rubber seal ring 10 between heat conduction metal apron 8 and the shell 1, pack second heat dissipation silica gel layer 11 between dull and stereotyped 2 and the heat conduction metal apron 8, the top of heat conduction metal apron 8 is provided with the third fin 13 of a plurality of equidistant distribution, the bottom of heat conduction metal apron 8 is provided with the second fin 12 of a plurality of equidistant distribution.

The surface of the flat plate 2 is provided with a plurality of uniformly distributed through holes, the through holes are embedded with the top end of the heat dissipation sleeve 3, the heat dissipation sleeve 3 is welded with the flat plate 2 in a seamless mode, the through holes provide installation positions for the heat dissipation sleeve 3, and the seamless welding avoids gaps at the joint; the number of the heat dissipation grooves 5 is a plurality, the heat dissipation grooves 5 are distributed at equal intervals, the heat dissipation grooves 5 are of U-shaped structures, and the heat dissipation grooves 5 are used for ventilation and heat dissipation; bolts 9 are arranged between the four corners of the heat-conducting metal cover plate 8 and the top of the shell 1, so that the heat-conducting metal cover plate 8 is fixedly arranged; the rubber sealing gasket 10 is fixedly bonded with the bottom edge of the heat-conducting metal cover plate 8, so that the connection between the rubber sealing gasket 10 and the heat-conducting metal cover plate 8 is realized; the periphery of the flat plate 2 and the inner wall of the shell 1 are welded in a seamless mode, the joint is prevented from having a gap in the seamless welding mode, and the sealing performance is improved.

When the utility model is used, the electric core 7 generates heat, the heat is radiated and conducted through the first heat radiation silica gel layer 6 and the second heat radiation silica gel layer 11, the heat is transmitted to the heat radiation sleeve 3, the heat radiation area is increased through the first heat radiation fin 4, and the heat radiation effect is improved;

the heat conduction area of the heat conduction metal cover plate 8 is increased through the second heat radiating fins 12, heat is transferred to the heat conduction metal cover plate 8, and the heat radiation area is increased through the third heat radiating fins 13, so that the heat radiation effect is improved, and the high temperature resistance is improved;

the bottom is sealed through flat board 2, heat dissipation cover 3, and the top is through second heat dissipation silica gel layer 11, rubber seal ring 10 carry out the packing of connecting gap, has improved the leakproofness, plays the waterproof effect of junction.

Wherein: the flat plate 2, the heat dissipation sleeve 3, the first heat dissipation sheet 4, the heat conduction metal cover plate 8, the second heat dissipation sheet 12 and the third heat dissipation sheet 13 are all made of metal copper, and have good heat conduction performance; the first heat dissipation silica gel layer 6 and the second heat dissipation silica gel layer 11 are both made of heat dissipation silica gel, and have heat conduction performance and insulation performance.

The circuit connection between the electric cores 7 is not improved, the traditional serial connection or parallel connection is adopted, the circuit line is arranged inside the first heat dissipation silica gel layer 6 and the second heat dissipation silica gel layer 11, and the exposed charging interface and the exposed discharging interface are arranged on the heat conduction metal cover plate 8.

It is well within the skill of those in the art to implement, without undue experimentation, the present invention does not relate to software and process improvements, as related to circuits and electronic components and modules.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A high temperature resistant lithium battery characterized in that: the battery comprises a shell and a flat plate fixedly installed in the shell, wherein a plurality of radiating sleeves are uniformly and fixedly embedded on the surface of the flat plate, a plurality of first radiating fins are uniformly arranged on the outer sleeve wall of each radiating sleeve, a battery core is embedded in the radiating sleeves in a clearance manner, a first radiating silica gel layer is filled between the battery core and the radiating sleeves, and radiating grooves are formed in the shell wall of the shell;

2. A high temperature resistant lithium battery as claimed in claim 1, wherein: the surface of the flat plate is provided with a plurality of through holes which are uniformly distributed, the through holes are embedded with the top end of the heat dissipation sleeve, and the heat dissipation sleeve is welded with the flat plate in a seamless mode.

3. A high temperature resistant lithium battery as claimed in claim 1, wherein: the number of the heat dissipation grooves is a plurality of, the plurality of heat dissipation grooves are distributed at equal intervals, and the heat dissipation grooves are of U-shaped structures.

4. A high temperature resistant lithium battery as claimed in claim 1, wherein: bolts are arranged between the four corners of the heat-conducting metal cover plate and the top of the shell.

5. A high temperature resistant lithium battery as claimed in claim 1, wherein: and the rubber sealing washer is fixedly bonded with the bottom edge of the heat-conducting metal cover plate.

6. A high temperature resistant lithium battery as claimed in claim 1, wherein: the periphery of the flat plate is welded with the inner wall of the shell in a seamless mode.