CN-224204176-U - Liquid cooling plate and battery pack

CN224204176UCN 224204176 UCN224204176 UCN 224204176UCN-224204176-U

Abstract

The utility model provides a liquid cooling plate and a battery pack, wherein the liquid cooling plate comprises a plurality of shells, connecting pieces and liquid cooling pipelines, channels are formed in each shell, the connecting pieces are connected with the shells, the shells are fixed together, the channels of two adjacent shells are communicated, the liquid cooling pipelines penetrate through the channels, and are used for circulating cooling liquid, so that heat of a battery cell can be transmitted to the cooling liquid in the liquid cooling pipelines through the shells, and the heat is discharged through the cooling liquid, so that heat dissipation and cooling of the battery cell are realized. The connecting piece is detachably connected with the shell, so that a user can adjust the quantity of the shells and the spliced shape of the shells according to the specification of the battery pack, the liquid cooling plate is suitable for battery packs with different specifications, and the sealing performance of the liquid cooling pipeline can be ensured by arranging the liquid cooling pipeline for circulating cooling liquid, so that the problem that the liquid cooling plate leaks cooling liquid is avoided.

Inventors

YIN XUNBIN
CHEN FENGYU
CAO DAN

Assignees

中集船舶海洋工程设计研究院有限公司
中国国际海运集装箱(集团)股份有限公司
中集鑫德租赁(深圳)有限公司

Dates

Publication Date: 20260505
Application Date: 20250206

Claims (11)

1. A liquid cooling plate is characterized by comprising a plurality of shells, at least one connecting piece and liquid cooling pipelines, wherein channels are formed in the shells, extend to the edges of the shells and are open, any adjacent shells are connected through one connecting piece, the channels between the adjacent shells are communicated to enable the channels between the shells to form a pipeline installation position, the connecting piece is detachably connected with the shells, the liquid cooling pipelines penetrate through the pipeline installation position, and the liquid cooling pipelines are used for circulating cooling liquid to cool the shells.
2. The liquid cooling plate according to claim 1, wherein, The shell is provided with a first through hole; the connecting piece comprises a connecting plate and a fastener, at least two second through holes are formed in the connecting plate at intervals, the at least two second through holes correspond to the positions of the at least two adjacent first through holes in the shell respectively, and the fastener is arranged in the corresponding first through holes and second through holes in a penetrating mode, so that the connecting plate is connected with the at least two shells.
3. The liquid cooling plate according to claim 2, wherein, The connecting plate is in a strip shape, the two ends of the connecting plate along the length direction are respectively provided with the second through holes, and the two ends of the connecting plate along the length direction are respectively connected with the two adjacent shells, or The connecting plate comprises a first connecting part and a second connecting part, wherein one end of the first connecting part in the length direction is connected with one end of the first connecting part in the length direction, an included angle is formed between the first connecting part and the second connecting part, one end of the first connecting part far away from the second connecting part, one end of the second connecting part far away from the first connecting part and one end of the connecting plate connected with the second connecting part are respectively provided with the second through holes, one end of the connecting plate far away from the second connecting part, one end of the second connecting part far away from the first connecting part and one end of the connecting plate connected with the first connecting part and the second connecting part are respectively connected with three adjacent shells, or The four corners of the connecting plate are respectively provided with the second through holes, and the four corners of the connecting plate are respectively connected with four adjacent shells.
4. The liquid cooling plate according to claim 2, wherein, The shell is rectangular, the four corners of the shell are provided with assembly positions for installing the connecting plates, the first through holes are arranged at the assembly positions, and the connecting plates are arranged in the adjacent assembly positions where the shells are close to each other.
5. The liquid cooling plate according to claim 1, wherein, The shell comprises a lower shell and an upper shell, wherein the upper shell covers the lower shell, and the channel is formed between the upper shell and the lower shell in a surrounding manner.
6. The liquid cooling plate according to claim 5, wherein, The lower shell is provided with a first groove, the upper shell is provided with a second groove, the position of the second groove corresponds to that of the first groove, and the second groove and the first groove are encircled to form the channel; The cross sections of the first groove and the second groove are semicircular, and the diameters of the first groove and the second groove are equal to the diameter of the liquid cooling pipeline.
7. The liquid cooling plate according to claim 5, wherein, The upper shell and the lower shell are connected with the connecting piece; The four corners of one side of the lower shell, which faces the lower shell, are provided with first mounting grooves, the four corners of one side of the upper shell, which faces the lower shell, are provided with second mounting grooves, the positions of the second mounting grooves correspond to the positions of the first mounting grooves, and the second mounting grooves and the first mounting grooves are surrounded to form an assembly position for mounting the connecting piece; The liquid cooling plate further comprises a position supplementing block, the position supplementing block is detachably connected in an assembling position of the connecting piece, which is not assembled on the shell, and the outer surface of the position supplementing block is attached to the inner wall surface of the assembling position.
8. The liquid cooling plate according to claim 1, wherein, The channels include a first channel and a second channel, the first channel intersecting the second channel; The housing is open at least at one end of the first channel and the housing is open at least at one end of the second channel; At least part of the channels are provided with the liquid cooling pipeline.
9. The liquid cooling plate according to claim 8, wherein, The middle part of the first channel intersects the middle part of the second channel, and the shell is open at both end parts of the first channel, and the shell is open at both end parts of the second channel; The width of the intersection of the first channel and the second channel is greater than or equal to twice the diameter of the liquid cooling pipeline.
10. The liquid cooling plate according to claim 1, wherein, The liquid cooling pipeline is provided with one liquid cooling pipeline which is penetrated in the channels of the shells, or The liquid cooling pipelines are provided with a plurality of liquid cooling pipelines which are arranged in parallel and are all arranged in the pipeline installation position, or The liquid cooling pipeline comprises a plurality of pipeline sections, the pipeline sections are respectively arranged in one-to-one correspondence with the shells, and the pipeline sections on the adjacent shells are arranged in series.
11. A battery pack comprising a battery cell and the liquid cooling plate according to any one of claims 1-10, wherein the battery cell is fixed to the liquid cooling plate so that heat of the battery cell can be transferred to the liquid cooling plate.

Description

Liquid cooling plate and battery pack Technical Field The utility model relates to the field of batteries, in particular to a liquid cooling plate and a battery pack. Background The battery pack comprises a liquid cooling plate and a battery cell, wherein the liquid cooling plate is attached to the bottom surface of the battery cell so as to cool the battery cell. However, the existing battery packs are integrated with the liquid cooling plate, so that the existing liquid cooling plate cannot be suitable for battery packs with different specifications. Disclosure of utility model The utility model aims to solve the problem that a liquid cooling plate in the existing battery pack cannot be suitable for battery packs with different specifications. The utility model provides a liquid cooling plate which comprises a plurality of shells, at least one connecting piece and liquid cooling pipelines, wherein channels are arranged in the shells, extend to the edges of the shells and are open, any adjacent shells are connected through the connecting piece, the channels between the adjacent shells are communicated to enable the channels between the shells to form a pipeline installation position, the connecting piece is detachably connected with the shells, the liquid cooling pipelines penetrate through the pipeline installation position, and the liquid cooling pipelines are used for circulating cooling liquid to cool the shells. In some embodiments of the present application, the housing is provided with a first through hole, the connecting piece includes a connecting plate and a fastening piece, at least two second through holes are spaced on the connecting plate, the at least two second through holes respectively correspond to the positions of the at least two adjacent first through holes on the housing, and the fastening piece is inserted into the corresponding first through holes and second through holes, so that the connecting plate is connected with the at least two housings. In some schemes of the application, the connecting plate is in a strip shape, the two ends of the connecting plate along the length direction are respectively provided with the second through holes, the two ends of the connecting plate along the length direction are respectively connected with the two adjacent shells, or the connecting plate comprises a first connecting part and a second connecting part, the one end of the first connecting part along the length direction is connected with the one end of the first connecting part along the length direction, the first connecting part and the second connecting part are arranged at an included angle, the end of the first connecting part far away from the second connecting part, the end of the second connecting part far away from the first connecting part and the one end of the connecting plate connected with the second connecting part are respectively connected with three adjacent shells, or the four corners of the connecting plate are respectively provided with the second through holes, and the four corners of the connecting plate are respectively connected with the four adjacent shells. In some aspects of the application, the shell is rectangular, the four corners of the shell are provided with assembly positions for installing the connecting plates, the first through holes are arranged at the assembly positions, and the connecting plates are arranged in the adjacent assembly positions where the shells are close to each other. In some aspects of the application, the housing includes a lower housing and an upper housing, the upper housing covers the lower housing, and the channel is formed around the upper housing and the lower housing. The lower shell is provided with a first groove, the upper shell is provided with a second groove, the position of the second groove corresponds to that of the first groove, the second groove and the first groove are surrounded to form the channel, the cross sections of the first groove and the second groove are semicircular, and the diameters of the first groove and the second groove are equal to that of the liquid cooling pipeline. In some schemes of the application, the upper shell and the lower shell are both connected with the connecting piece, first mounting grooves are formed in four corners of one side, facing the lower shell, of the lower shell, second mounting grooves are formed in four corners of one side, facing the lower shell, of the upper shell, the positions of the second mounting grooves correspond to those of the first mounting grooves, the second mounting grooves and the first mounting grooves are surrounded to form an assembly position for mounting the connecting piece, the liquid cooling plate further comprises a position compensating block, the position compensating block is detachably connected in the assembly position, not provided with the connecting piece, of the shell, and the outer surface of the position compensating block is attach