CN212085171U

CN212085171U - Embedded heat radiation structure of lithium battery

Info

Publication number: CN212085171U
Application number: CN202020492159.0U
Authority: CN
Inventors: 李宝宝; 张奎
Original assignee: Chongqing Beidou Jiean New Energy Technology Co ltd
Current assignee: Chongqing Beidou Jiean New Energy Technology Co ltd
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-12-04
Anticipated expiration: 2030-04-07

Abstract

The utility model discloses an embedded heat radiation structure of lithium cell relates to electric motor car technical field, including battery PACK shell, the inside of battery PACK shell is fixed respectively to be inlayed and is had heat conduction support module one, heat conduction support module two and heat conduction support module three, the inside of battery PACK shell is equipped with two symmetrical heat conduction supports, every the left and right sides face of heat conduction support all is equipped with heat conduction adhesive tape. This embedded heat radiation structure of lithium cell passes through heat conduction support module one, heat conduction support module two, three heat conduction supports of heat conduction support module, the cooperation setting of heat conduction adhesive tape and heat conduction support, can distribute the equilibrium through the heat conduction adhesive tape by the effectual heat with the inside gathering of battery, and absorb the heat, make the heat conduction after the absorption to heat conduction support, and make heat conduction support with heat conduction to battery PACK shell, finally lean on shell radiation and outside air convection to come for the battery cooling, the lithium cell that adopts this kind of heat radiation structure can make heat conduction support temperature balanced, make the inside heat conduction support highest temperature of battery reduce 3 ~ 5 degrees at least.

Description

Embedded heat radiation structure of lithium battery

Technical Field

The utility model relates to an electric motor car technical field specifically is an embedded heat radiation structure of lithium cell.

Background

18650 lithium cell heat conduction support energy density is high, uses extensively in the electric motor car field. Battery PACK requires the 18650 thermally conductive rack module, a Battery Management System (BMS) to be integrated together.

Current electric motor car battery PACK adopts natural forced air cooling usually, produces the inside heat of gathering of battery easily and is difficult for giving out the problem that the inside difference in temperature of battery that leads to is big, and the long-term life that is in the heat conduction support in the high environment of temperature can obviously reduce, finally influences whole battery PACK's life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat radiation structure inside lithium cell PACK can effectively come out the heat conduction that the heat conduction support sent, eliminates the difficult effluvium problem of heat gathering that the inside heat conduction support of battery sent.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: the utility model provides an embedded heat radiation structure of lithium cell, includes battery PACK shell, the inside of battery PACK shell is fixed respectively to be inlayed and is had heat conduction support module one, heat conduction support module two and heat conduction support module three, the inside of battery PACK shell is equipped with two symmetrical heat conduction supports, every the left and right sides face of heat conduction support all is equipped with heat conduction adhesive tape.

Furthermore, the first heat conduction support module, the second heat conduction support module and the third heat conduction support module are arranged in parallel, and heat conduction supports arranged equidistantly are fixedly connected inside the first heat conduction support module, the second heat conduction support module and the third heat conduction support module.

By adopting the technical scheme, the storage capacity of the battery can be effectively improved, and meanwhile, the energy density in the battery is improved.

Furthermore, the upper surface and the bottom surface of each heat conduction support are fixedly connected with the inner wall of the battery PACK shell, one of the heat conduction supports is located between one adjacent side face of the first heat conduction support module and the second heat conduction support module, and the other heat conduction support is located between one adjacent side face of the second heat conduction support module and the third heat conduction support module.

Through adopting above-mentioned technical scheme, can effectually conduct the heat of the three inside aggregations of heat conduction support module one, heat conduction support module two and heat conduction support module and come out to make the heat give off.

Furthermore, one side surface of each heat-conducting adhesive tape is fixedly connected with the left side surface and the right side surface of the heat-conducting support, and the other side surface of each heat-conducting adhesive tape is fixedly connected with one side surface of the heat-conducting support.

By adopting the technical scheme, the temperature distribution in the battery is effectively balanced as much as possible, and the gathered heat is absorbed.

Compared with the prior art, the embedded heat radiation structure of lithium battery has the following beneficial effects:

1. the utility model discloses a heat conduction support module I, heat conduction support module two, three heat conduction supports of heat conduction support module, the cooperation setting of heat conduction adhesive tape and heat conduction support, can be effectual distribute the heat of the inside gathering of battery balanced through heat conduction adhesive tape, and absorb the heat, make the heat conduction after absorbing to heat conduction support, and make heat conduction support with heat conduction to battery PACK shell, finally lean on shell radiation and outside air convection to come the battery cooling, the lithium cell that adopts this kind of heat radiation structure can make heat conduction support temperature balanced, make the inside heat conduction support highest temperature of battery reduce 3 ~ 5 degrees at least.

2. The utility model discloses a heat conduction support module I, heat conduction support module two, the setting of heat conduction support module three and heat conduction support, can effectually improve the electric power storage ability of battery, the energy density in the battery has been improved simultaneously, setting through the heat conduction support, can effectually conduct heat conduction support module I, the heat of the three inside aggregations of heat conduction support module two and heat conduction support module comes out, and make the heat give off, setting through the heat conduction adhesive tape, the inside temperature distribution of effectual messenger's battery is as far as possible balanced, and absorb the heat after the aggregation.

Drawings

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

FIG. 2 is a schematic sectional view of the present invention;

FIG. 3 is a schematic diagram of the internal front view structure of the battery PACK of the present invention;

fig. 4 is the utility model discloses the inside structural schematic that overlooks of battery PACK.

In the figure: 1. a battery PACK housing; 2. a thermally conductive support; 3. a first heat conduction bracket module; 4. a second heat conduction bracket module; 5. a third heat conduction bracket module; 6. a heat conducting adhesive tape; 7. a heat conductive sheet.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a heat dissipation structure embedded in a lithium battery comprises a battery PACK shell, wherein the battery PACK shell is an aluminum alloy shell, a first heat conduction support module, a second heat conduction support module and a third heat conduction support module are respectively fixedly embedded in the battery PACK shell, the first heat conduction support module, the second heat conduction support module and the third heat conduction support module are arranged in parallel, heat conduction sheets which are arranged at equal intervals are fixedly connected in the first heat conduction support module, the second heat conduction support module and the third heat conduction support module, the electric storage capacity of the battery can be effectively improved, the energy density in the battery is improved, two symmetrical heat conduction supports are arranged in the battery PACK shell, the second heat conduction support is an I-shaped aluminum alloy heat conduction support, the upper surface and the bottom surface of each heat conduction support are fixedly connected with the inner wall of the battery PACK shell, one of the heat conduction supports is positioned between one side face of the first heat conduction support module and the two adjacent heat conduction support modules, another the heat conduction support is located between the side that heat conduction support module two and heat conduction support module three are adjacent, can effectually conduct the heat of heat conduction support module one, heat conduction support module two and three inside aggregations of heat conduction support module and come out to make the heat give off, every the left and right sides face of heat conduction support all is equipped with heat conduction adhesive tape, every heat conduction adhesive tape's a side is equallyd divide do not with the left and right sides face fixed connection of heat conduction support, every heat conduction adhesive tape's another side is equallyd divide do with a side fixed connection of conducting strip, and the inside temperature distribution of effectual messenger battery is as far as possible balanced to absorb the heat after the aggregation.

During the use, at first the conducting strip can constantly produce the radiant heat around the conducting strip when the output electric energy, and the heat of conducting strip radiation is directly proportional with the electric power of output, and the heat that the conducting strip sent can conduct to the heat conduction adhesive tape this moment, is conducting absorptive heat to the heat conduction support through the heat conduction adhesive tape, is conducting the absorptive heat of heat conduction support to battery PACK shell, finally leans on shell radiation and outside air convection to come for the battery cooling.

Claims

1. The utility model provides an embedded heat radiation structure of lithium cell, includes battery PACK shell (1), its characterized in that: the inside of battery PACK shell (1) is fixed respectively and inlays and have heat conduction support module (3), heat conduction support module two (4) and heat conduction support module three (5), the inside of battery PACK shell (1) is equipped with two symmetrical heat conduction support (2), every the left and right sides face of heat conduction support (2) all is equipped with heat conduction adhesive tape (6).

2. The embedded heat dissipation structure of lithium cell of claim 1, characterized in that: the heat conduction support module I (3), the heat conduction support module II (4) and the heat conduction support module III (5) are arranged in parallel, and heat conduction fins (7) which are arranged equidistantly are fixedly connected inside the heat conduction support module I (3), the heat conduction support module II (4) and the heat conduction support module III (5).

3. The embedded heat dissipation structure of lithium cell of claim 1, characterized in that: every the upper surface and the bottom surface of heat conduction support (2) all with the inner wall fixed connection of battery PACK shell (1), one of them heat conduction support (2) are located between the adjacent side of heat conduction support module (3) and heat conduction support module two (4), another heat conduction support (2) are located between the adjacent side of heat conduction support module two (4) and heat conduction support module three (5).

4. The embedded heat dissipation structure of lithium cell of claim 1, characterized in that: one side surface of each heat-conducting adhesive tape (6) is fixedly connected with the left side surface and the right side surface of the heat-conducting support (2), and the other side surface of each heat-conducting adhesive tape (6) is fixedly connected with one side surface of the heat-conducting fin (7).