CN218568993U

CN218568993U - Battery package thermal management structure

Info

Publication number: CN218568993U
Application number: CN202223085415.2U
Authority: CN
Inventors: 钱兆; 张亚光; 郎林; 柳士江; 张海滨
Original assignee: Anhui Zhouzhihang Battery Co ltd
Current assignee: Anhui Zhouzhihang Battery Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-03
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a battery package thermal management structure, it includes casing under the battery package, the inboard of casing is provided with the heat preservation cotton that is used for carrying on thermal-insulated heat preservation, is used for the liquid cold plate of heat transfer, is used for transmitting thermal heat conduction silica gel piece and battery module from bottom to top in proper order under the battery package, it is provided with a plurality of support piece that are strip distribution to keep warm on the cotton along length direction, support piece is used for supporting and lifting liquid cold plate and heat conduction silica gel piece so that liquid cold plate and heat conduction silica gel piece and battery module laminating, be provided with the reference column assembly that is used for the casing to carry out the equipment on the battery package under the battery package on the casing. The utility model discloses in, through the banding support piece that sets up, can make liquid cold plate and heat conduction silica gel piece inseparable with the laminating of battery module, and then the heat transfer of being convenient for improves heat management performance to, it can material saving, reduce cost to be banding setting.

Description

Battery package thermal management structure

Technical Field

The utility model relates to a battery field especially relates to a battery package thermal management structure.

Background

The existing battery pack thermal management mode mainly comprises a natural cooling mode (PTC/heating film/heating wire heating mode), a liquid cooling liquid heating mode and the like, wherein inside a shell under different battery packs, the assembly tolerance of the PTC and the liquid cooling plate and the tolerance of the shell of the battery pack easily cause the temperature difference of the temperature field of the battery pack to be too large, the heating rate does not meet the technical requirements, and the heating/cooling energy is easily absorbed by the shell under the battery pack.

Secondly, the existing method has high processing cost and low maintainability.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

In view of this, the utility model aims to provide a battery package thermal management structure to optimize battery package thermal management performance, reduce the battery module performance influence that the thermal management difference in temperature brought greatly.

(II) technical scheme

In order to achieve the technical purpose, the utility model provides a battery package thermal management structure:

it includes casing under the battery package, the inboard of casing is provided with the heat preservation cotton that is used for carrying on thermal-insulated heat preservation, is used for the liquid cold plate of heat transfer, is used for transmitting thermal heat's heat conduction silica gel piece and battery module from bottom to top in proper order under the battery package, it is provided with a plurality of support piece that are strip distribution to keep warm along length direction on the cotton, support piece is used for supporting and lifting liquid cold plate and heat conduction silica gel piece so that liquid cold plate and heat conduction silica gel piece and battery module laminating, be provided with on the casing under the battery package and be used for the battery package to go up the casing and carry out the reference column assembly of assembling.

Preferably, the support member comprises a support cotton sliver, and a plurality of protrusions are arranged on the support cotton sliver at equal intervals along the length direction.

Preferably, the positioning column assembly comprises a positioning sleeve fixed on the lower shell of the battery pack, a telescopic rod is movably inserted into the inner side of the positioning sleeve, and the upper end of the telescopic rod movably penetrates out of the positioning sleeve and is fixed with a positioning head.

Preferably, an elastic limiting piece is fixed at the lower end of the telescopic rod, and the elastic limiting piece is in sliding fit with the inner side of the positioning sleeve.

Preferably, the positioning head is in a cone frustum shape, and the outer diameter of the positioning head is the same as that of the positioning sleeve.

Preferably, the elastic limiting part is circular ring-shaped, and the elastic limiting part is made of rubber material.

According to the technical scheme, the method has the following beneficial effects:

the utility model discloses in, through the banding support piece that sets up, can make liquid cold plate and heat conduction silica gel piece inseparable with the laminating of battery module, and then the heat transfer of being convenient for, effective reduce temperature field difference in temperature, and then improve heat management performance to, it can material saving, reduce cost to be banding setting up. The technical scheme of the utility model the operation is comparatively convenient, and heat management performance improves relatively. Additionally, the utility model discloses can prolong the length of whole reference column assembly when needs for can be better when the battery package goes up the casing and assembles with lower casing advance line location equipment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a thermal management structure of a battery pack provided by the present invention.

Fig. 2 is a schematic diagram of the arrangement of the support member of the thermal management structure of the battery pack provided by the present invention.

Fig. 3 is a schematic structural diagram of a support member of a thermal management structure of a battery pack according to the present invention.

Fig. 4 is a schematic structural diagram of a positioning column assembly of a battery pack thermal management structure according to the present invention.

Description of the drawings: the battery pack comprises a lower battery pack shell 1, heat preservation cotton 2, a liquid cooling plate 3, a heat conduction silica gel sheet 4, a battery module 5, a support piece 6, a support cotton sliver 61, a protrusion 62, a positioning column assembly 7, a positioning sleeve 71, a telescopic rod 72, a positioning head 73 and an elastic limiting piece 74.

Detailed Description

The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings are only schematic representations of the concepts and principles of the embodiments of the disclosure, and do not necessarily show specific dimensions or proportions of the various embodiments of the disclosure. Certain features that are part of a particular figure may be exaggerated in order to illustrate relevant details or structures of embodiments of the present disclosure.

Referring to FIGS. 1-4:

example one

The utility model provides a battery package thermal management structure, casing 1 under the battery package, the inboard of casing 1 is provided with the cotton 2 that keeps warm that is used for carrying on thermal-insulated heat preservation from bottom to top in proper order under the battery package, a liquid cooling board 3 for the heat transfer, a heat conduction silica gel piece 4 and battery module 5 for the transfer heat, it is provided with a plurality of support piece 6 that are the strip and distribute to keep warm cotton 2 last along length direction, be provided with on the casing 1 under the battery package and be used for the battery to wrap the casing and carry out the reference column assembly 7 of equipment. Further, the supporting member 6 includes a supporting cotton sliver 61, and a plurality of protrusions 62 are disposed on the supporting cotton sliver 61 at equal intervals along the length direction. The support piece 6 is arranged to be strip-shaped, so that materials can be saved, and cost is reduced.

Preferably, in order to facilitate the assembly of the battery pack housing, the positioning column assembly 7 includes a positioning sleeve 71 fixed on the battery pack lower housing 1, an expansion link 72 is movably inserted inside the positioning sleeve 71, and an upper end of the expansion link 72 movably penetrates through the positioning sleeve 71 and is fixed with a positioning head 73. An elastic limiting piece 74 is fixed at the lower end of the telescopic rod 72, and the elastic limiting piece 74 is in sliding fit with the inner side of the positioning sleeve 71. The positioning head 73 is in a cone frustum shape, and the outer diameter of the positioning head 73 is the same as that of the positioning sleeve 71. Specifically, the elastic limiting member 74 is circular ring-shaped, and the elastic limiting member 74 is made of rubber material. So that the elastic limiting member 74 has an elastic tensioning function.

Specifically, the number of the heat preservation cotton 2 is a plurality, and the heat preservation cotton is uniformly laid on the lower shell 1 of the battery pack, and the supporting piece 6 and the liquid cooling plate 3 are bonded together. The number of the heat conduction silica gel sheets 4 is also multiple, and the multiple heat conduction silica gel sheets 4 are all bonded on the liquid cooling plate 3. Liquid cold plate 3 and heat conduction silica gel piece 4 are the laminating in 5 bottoms of battery module, under support piece 6's effect, can be so that liquid cold plate 3 and heat conduction silica gel piece 4 and 5 laminating of battery module are inseparable, the heat-conduction of being convenient for. Secondly, the supporting pieces 6 distributed in a strip shape can reduce materials and save cost.

It should be noted that, casing 1 all is prior art under casing and the battery package on the battery package, casing picture on the battery package is not seen in this scheme drawing, in addition, be provided with the locating hole that is used for with reference column assembly 7 butt joint on the casing on the battery package, when the equipment location, peg graft in the locating hole with reference column assembly 7 can, when needs, can stimulate locating head 73, and then prolong the length of whole reference column assembly 7, make can be better when casing and the casing are assembled on the battery package assemble, convenient location.

Exemplary embodiments of the proposed solution of the present disclosure have been described in detail above with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various technical features and structures presented in the present disclosure may be made without departing from the concept of the present disclosure, without departing from the scope of the present disclosure, which is defined by the appended claims.

Claims

1. The utility model provides a battery package thermal management structure, its characterized in that, casing (1) under the battery package, the inboard of casing (1) is provided with in proper order from bottom to top and is used for carrying on thermal-insulated heat retaining heat preservation cotton (2), liquid cooling board (3) that are used for the heat transfer, is used for transmitting thermal heat conduction silica gel piece (4) and battery module (5), be provided with a plurality of support piece (6) that are strip distribution on heat preservation cotton (2) along length direction, support piece (6) are used for supporting and lifting liquid cooling board (3) and heat conduction silica gel piece (4) so that liquid cooling board (3) and heat conduction silica gel piece (4) laminate with battery module (5), be provided with on casing (1) down and be used for the battery to wrap up casing and carry out reference column assembly (7) assembled.

2. The battery pack thermal management structure according to claim 1, wherein the support member (6) comprises a support sliver (61), and a plurality of protrusions (62) are provided on the support sliver (61) at equal intervals along the length direction.

3. The battery pack heat management structure according to claim 1, wherein the positioning column assembly (7) comprises a positioning sleeve (71) fixed on the lower casing (1) of the battery pack, an expansion rod (72) is movably inserted into the inner side of the positioning sleeve (71), and the upper end of the expansion rod (72) movably penetrates through the positioning sleeve (71) and is fixed with a positioning head (73).

4. The thermal management structure of a battery pack according to claim 3, wherein the lower end of the telescopic rod (72) is fixed with an elastic stopper (74), and the elastic stopper (74) is slidably fitted inside the positioning sleeve (71).

5. The battery pack thermal management structure according to claim 3 or 4, wherein the positioning head (73) is in a truncated cone shape, and the outer diameter of the positioning head (73) is the same as the outer diameter of the positioning sleeve (71).

6. The thermal management structure of a battery pack according to claim 4, wherein the elastic stopper (74) is annular in shape, and the elastic stopper (74) is made of rubber material.