CN217522112U

CN217522112U - Integrated liquid cooling high-efficiency heat exchange soft package module

Info

Publication number: CN217522112U
Application number: CN202221008839.6U
Authority: CN
Inventors: 王文林; 洪秀玉; 丁健
Original assignee: Zhaoqing Helin Liye Technology Co ltd
Current assignee: Zhaoqing Helin Liye Technology Co ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-09-30
Anticipated expiration: 2032-04-28

Abstract

The utility model discloses an integrated liquid cooling high-efficiency heat exchange soft package module, the inner side of a module shell is provided with a plurality of battery packs side by side along the width direction, each battery pack extends along the length direction of the module shell, a liquid cooling plate is arranged between two adjacent battery packs, the liquid cooling plate extends out of two ends of the module shell and is connected on a heat exchange mechanism positioned at the outer side of the module shell, each battery pack comprises a plurality of battery monomers which are stacked along the height direction of the module shell, each battery monomer on the same battery pack is attached to the liquid cooling plate, so all the battery monomers in the module shell are directly and fully contacted with the liquid cooling plate, the heat conduction of the battery monomers does not take the module structural member as the transfer any more, the heat exchange efficiency of the module with the high-rate charge and discharge requirements can be greatly improved, the temperature rise of the module and the temperature difference between the battery monomers are reduced, the service life of the battery pack is further prolonged, the liquid cooling plate can play a function of the module structural member at the same time, the structural design is more compact.

Description

Integrated liquid cooling high-efficiency heat exchange soft package module

Technical Field

The utility model relates to a battery technology field especially relates to a soft packet of module of high-efficient heat transfer of integrated liquid cooling.

Background

The existing module technology mostly adopts 'battery monomer → module → liquid cooling plate' for the free heat transfer of battery, has the module structure as the transfer in the heat transfer route, and is lower to the heat exchange efficiency who has the high multiplying power charge-discharge demand, and temperature rise and the difference in temperature between the monomer are great in the module, and thermal management performance is relatively poor. For example, patent document CN113178656A discloses a battery module in which a plurality of battery cells each including a battery and an outer package for housing the battery are arranged in parallel, and a battery cell support is interposed between the plurality of battery cells. It is preferable to provide a fixing film for winding the battery module in the stacking direction, thereby fixing the plurality of battery cells, as illustrated in fig. 6B thereof, and the cooling mechanism is provided on the outer wall of the entire structure composed of the plurality of sets of battery modules, inevitably resulting in a poor heat exchange capability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a soft packet of module of high-efficient heat transfer of integrated liquid cooling to solve the problem that above-mentioned prior art exists, all set up the liquid cooling board between each group battery in the module casing, no longer regard as the transfer with the module structure to the free heat conduction of battery, very big improvement to the free heat exchange efficiency of battery.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a laminate polymer module of high-efficient heat transfer of integrated liquid cooling, including the module casing, the module casing inboard is equipped with a plurality of group batteries, each side by side along its width direction the group battery is followed module casing length direction extends, adjacent two be equipped with the cold liquid board between the group battery, the cold liquid board stretches out the both ends of module casing are connected and lie in on the heat transfer mechanism in the module casing outside, the group battery includes a plurality of edges the battery monomer that module casing direction of height stacked is same each on the group battery the battery monomer all pastes and leans on the cold liquid board.

Preferably, the battery pack comprises two battery modules which are arranged and connected along the length direction of the module shell, and each battery module consists of a plurality of battery monomers which are stacked along the height direction of the module shell.

Preferably, the battery pack and the cold liquid plate have equal lengths in the length direction of the module case.

Preferably, bus bar assemblies respectively matched and connected with the battery modules are arranged at two ends of the battery pack, the bus bar assemblies extend out of two ends of the module shell along the length direction, and the battery monomers on the battery modules are inserted into the corresponding bus bar assemblies.

Preferably, openings for extending the bus bars are formed in two ends of the module shell along the length direction, end plates abutting against the bus bar assembly are arranged at the openings, and a connecting port for extending the cold liquid plate is formed in each end plate.

Preferably, the bus bar assembly is provided with a wiring terminal, the end plate abuts against the position where the wiring terminal is not arranged on the bus bar assembly, and the end plate is provided with an electric connection part connected with the wiring terminal.

Preferably, the same battery module is provided with a plurality of groups of battery monomers, an expansion foam layer is connected between every two adjacent groups of battery monomers, and an adhesive layer is connected between every two adjacent battery monomers in each group of battery monomers.

Preferably, the module shell comprises a U-shaped bottom shell and a cover plate which is detachably connected with the U-shaped bottom shell and then has a cylindrical structure, and the end plates are fixed at openings at two ends of the cylindrical structure.

Preferably, the U-shaped bottom shell and the cover plate are both attached to the outer wall of the battery pack and are both provided with heat dissipation structures.

Preferably, a heat conducting glue layer is arranged between the battery pack and the liquid cooling plate.

The utility model discloses for prior art gain following technological effect:

first, a plurality of battery packs are arranged in parallel along the width direction of the inner side of the module shell, each battery pack extends along the length direction of the module shell, a liquid cooling plate is arranged between two adjacent battery packs and extends out of two ends of the module shell, and is connected with a heat exchange mechanism positioned at the outer side of the module shell, the battery pack comprises a plurality of battery monomers which are stacked along the height direction of the module shell, each battery monomer on the same battery pack is attached to the liquid cooling plate, all the battery monomers in the module shell are directly and fully contacted with the liquid cooling plate, the heat conduction of the battery monomer is not transferred by a module structural member any more, the heat exchange efficiency of the module with high-rate charge and discharge requirements can be greatly improved, the temperature rise of the module and the temperature difference between the battery monomers are reduced, and then prolonged the life of group battery, the liquid cooling plate can play module structure function simultaneously, and structural design is more compact.

The second, the group battery includes two battery module of arranging the connection along module casing length direction, and battery module comprises a plurality of battery monomer that stack along module casing direction of height, namely with whole group battery modularization, satisfies the working requirement through increase and decrease battery module, realizes the nimble adjustment of module size and electric quantity, and the degree of flexibilization is higher, and constitutes the structure of big module by a plurality of battery module, and energy density is higher than traditional standard module.

Third, group battery and cold liquid board are equal along module casing length direction's ascending length to guarantee that battery monomer one side can fully and the contact of liquid cold plate, and then make battery monomer can fully by the heat transfer of liquid cold plate, further guaranteed the module heat exchange efficiency of high magnification charge-discharge demand.

Fourth, the both ends of group battery all are equipped with respectively with each battery module cooperation busbar subassembly of being connected, the busbar subassembly stretches out the module casing along the ascending both ends of length direction, the battery monomer on each battery module is pegged graft in corresponding busbar subassembly, through setting up the busbar subassembly at the both ends of group battery to fully optimize the connection structure of group battery and busbar subassembly, structural design is more compact, reasonable, and then the automated production of being convenient for.

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 embodiments will be briefly described below, and 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 these drawings without inventive labor.

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

FIG. 2 is an exploded view of the overall structure of the present invention;

fig. 3 is a schematic diagram of the connection of the battery cells according to the present invention;

FIG. 4 is a schematic view of a housing of the module of the present invention;

the battery pack comprises a cover plate 1, a through hole 2, an electric connection part 3, an end plate 4, a wiring terminal 5, a U-shaped shell 6, a liquid cooling plate 7, a battery pack 8, a battery module 9, an expansion foam 10, a battery monomer 11, a double-sided adhesive tape 12 and a bus bar assembly 13.

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.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 4, the present embodiment provides an integrated liquid-cooled high-efficiency heat exchange flexible package module, which includes a module housing, preferably a square structure matching battery cells 11 and battery modules 9, the module housing is a square housing structure, the inner side of the module housing is provided with a plurality of battery packs 8 side by side along the width direction thereof, each battery pack 8 extends along the length direction of the module housing, a liquid cooling plate is disposed between two adjacent battery packs 8, the liquid cooling plate 7 extends out of two ends of the module housing and is connected to a heat exchange mechanism located at the outer side of the module housing, the battery pack 8 includes a plurality of battery cells 11 stacked along the height direction of the module housing, each battery cell 11 on the same battery pack 8 is attached to the liquid cooling plate 7, so that all battery cells 11 in the module housing are in direct and sufficient contact with the liquid cooling plate 7, and heat conduction to the battery cells 11 is no longer transferred by the module structure, the module heat exchange efficiency to having the high magnification charge-discharge demand can be greatly improved, the difference in temperature between module temperature rise and the battery monomer 11 is reduced, and then the life of group battery 8 has been prolonged, and module structure function can be played simultaneously to liquid cold plate 7, and structural design is more compact.

Wherein, the group battery 8 includes two battery module 9 of connecting of arranging along module casing length direction, battery module 9 comprises a plurality of battery monomer 11 that stack along module casing direction of height, battery monomer 11 is through unified series connection, the standard battery module 9 is constituteed to the parallel mode, that is to say with whole group battery 8 modularization, satisfy the working requirement through increase and decrease battery module 9, realize the nimble adjustment of module size and electric quantity, the degree of flexibility is higher, and constitute the structure of big module by a plurality of battery module 9, energy density is higher than traditional standard module. Preferably, the same battery pack 8 comprises two battery modules 9, and the two battery modules 9 are connected by structural adhesive.

Further, group battery 8 equals with cold liquid board along the ascending length of module casing length direction to guarantee that 11 one sides of battery can be abundant with the contact of liquid cold board 7, and then make battery monomer 11 can be abundant by the heat transfer of liquid cold board 7, further guaranteed the module heat exchange efficiency of high magnification charge-discharge demand. Preferably, the position department that corresponds the side reason of liquid cooling board 7 on the module casing all begins to have a plurality of through-holes 2, and sets up a plurality of connecting holes that correspond with each through-hole 2 on the side reason of liquid cooling board 7, passes through-hole 2 through screw rod etc. and fixes with the connecting hole for liquid cooling board 7 is fixed on the module casing, and liquid cooling board 7 both is module major structure component, also is the heat transfer interface of battery module 9 and external heat exchange simultaneously.

As the utility model discloses preferred embodiment, the both ends of group battery 8 all are equipped with the busbar subassembly 13 of being connected with the cooperation of each battery module 9 respectively, busbar subassembly 13 stretches out the module casing and follows the ascending both ends of length direction, battery monomer 11 on each battery module 9 is pegged graft in corresponding busbar subassembly 13, through setting up busbar subassembly 13 at the both ends of group battery 8, with the connection structure of fully optimizing group battery 8 and busbar subassembly 13, structural design is more compact, and is reasonable, and then the automated production of being convenient for.

Preferably, the module casing has seted up the opening that supplies the busbar to stretch out along the ascending both ends of length direction, and each opening part is equipped with end plate 4 of butt on busbar subassembly 13, and preferred end plate 4 adopts crowded end plate 4 of aluminium to utilize crowded end plate 4 of aluminium to dismantle the connection on the module casing, can also connect etc. through the welded mode, and set up the connector that supplies the cooling liquid board to stretch out on end plate 4.

Furthermore, the bus bar assembly 13 is provided with a wiring terminal 5, the end plate 4 abuts against the position of the bus bar assembly 13 where the wiring terminal 5 is not arranged, the end plate 4 is provided with an electric connection part 3 connected with the wiring terminal 5, and the battery modules 9 are electrically connected through the electric connection part 3.

As the utility model discloses preferred embodiment, each battery monomer 11 on same battery module 9 divide into a plurality of groups, is connected with the cotton 10 layers of inflation bubble between two sets of adjacent battery monomers 11, is connected with the viscose layer between two adjacent battery monomers 11 in every group battery monomer 11. Preferably, in the same battery module 9, every three battery monomer 11 is a set of, in every group, bond fixedly through double faced adhesive tape 12 between battery monomer 11 and the battery monomer 11, set up the cotton 10 of inflation bubble between every group battery monomer 11, its two sides and the battery monomer 11 that corresponds adopt double faced adhesive tape 12 to bond, two liang of bonds of inflation bubble cotton 10, battery monomer 11, double faced adhesive tape 12 three, constitute a three and four standard battery module 9 of cluster, through inflation bubble cotton 10, double faced adhesive tape 12 connects battery monomer 11, moreover, the steam generator is simple in structure, the automated production of being convenient for, and the manufacturing cost is reduced.

Further, the module casing includes U type drain pan and rather than can dismantle the apron 1 that is tubular structure after being connected, is connected through dismantling of apron 1 and U type drain pan to conveniently install group battery 8 in U type drain pan inboard, install apron 1 again, improved the installation effectiveness to group battery 8, end plate 4 fixes the both ends opening part at tubular structure, and then with the shutoff of group battery 8 in tubular structure. The cover plate 1 and the U-shaped shell 6 can be preferably connected in a welding mode, the fixed connection between the cover plate and the U-shaped shell is guaranteed, and the module shell is guaranteed to have enough structural strength.

Moreover, the U-shaped bottom shell and the cover plate 1 are both attached to the outer wall of the battery pack 8 and are both provided with heat dissipation structures, and the heat dissipation mechanisms can be heat dissipation fins, heat dissipation holes and the like. Preferably, the contact surface between the battery module 9 and the U-shaped housing 6 is fixed by structural adhesive, and the heat resistance of the U-shaped housing 6 to the battery module 9 can be avoided by the heat dissipation structure.

Further, all be equipped with the heat-conducting adhesive layer between group battery 8 and the liquid cooling board 7, preferred heat-conducting adhesive layer adopts the heat conduction structure to glue, it glues to have all smeared the heat conduction structure specifically to be close to one side of liquid cooling board 7 at battery monomer 11, can enough realize that battery module 9 bonds fixedly, can make liquid cooling board 7 and with both sides battery monomer 11 fully contact again, guarantee overall structure intensity and heat transfer interface area of contact, realize battery heat exchange, greatly improve the module heat exchange efficiency to having the high multiplying power charge-discharge demand, reduce the difference in temperature between module temperature rise and the battery monomer 11.

The adaptability that carries out according to actual demand all is in the protection scope of the utility model.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. 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 principle and the implementation mode of the utility model are explained by applying a specific embodiment, and the explanation of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for those skilled in the art, the idea of the present invention may be changed in the specific embodiments and the application range. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a high-efficient heat transfer laminate polymer module of integrated liquid cooling, its characterized in that, includes the module casing, the module casing inboard is equipped with a plurality of group batteries side by side along its width direction, each the group battery is followed module casing length direction extends, adjacent two be equipped with the liquid cooling board between the group battery, the liquid cooling board stretches out the both ends of module casing are connected to lieing in on the heat transfer mechanism in the module casing outside, the group battery includes a plurality of edges the battery monomer that module casing direction of height stacked, it is same each on the group battery the battery monomer all pastes and leans on the liquid cooling board.

2. The integrated liquid-cooled high-efficiency heat exchange soft package module set according to claim 1, wherein the battery pack comprises two battery modules arranged and connected along the length direction of the module housing, and each battery module comprises a plurality of battery cells stacked along the height direction of the module housing.

3. The integrated liquid-cooled high efficiency heat exchange pouch module of claim 2, wherein said battery pack and said liquid-cooled plate are of equal length along the length of said module housing.

4. The integrated liquid-cooled high-efficiency heat exchange soft package module according to claim 2 or 3, wherein bus bar assemblies are respectively arranged at two ends of the battery pack and are in fit connection with the battery modules, the bus bar assemblies extend out of two ends of the module housing along the length direction, and the battery monomers on the battery modules are inserted into the corresponding bus bar assemblies.

5. The integrated liquid-cooled high-efficiency heat exchange soft package module set according to claim 4, wherein openings for the bus bars to extend out are formed at two ends of the module housing along the length direction, an end plate abutting against the bus bar assembly is arranged at each opening, and a connecting port for the liquid-cooled plate to extend out is formed in the end plate.

6. The integrated soft package module with liquid cooling and high efficiency heat exchange of claim 5, wherein the bus bar assembly has a terminal, the end plate abuts against the bus bar assembly at a position where the terminal is not disposed, and the end plate has an electrical connection portion connected to the terminal.

7. The integrated liquid-cooled high-efficiency heat exchange soft package module set according to claim 6, wherein each battery monomer on the same battery module is divided into a plurality of groups, an expansion foam layer is connected between two adjacent groups of battery monomers, and an adhesive layer is connected between two adjacent battery monomers in each group of battery monomers.

8. The integrated liquid-cooled high-efficiency heat exchange soft package module set according to claim 7, wherein the module housing comprises a U-shaped bottom shell and a cover plate detachably connected with the U-shaped bottom shell and then having a cylindrical structure, and the end plates are fixed at openings at two ends of the cylindrical structure.

9. The integrated liquid-cooled high-efficiency heat exchange soft package module set according to claim 8, wherein the U-shaped bottom shell and the cover plate are both attached to the outer wall of the battery pack and are both provided with a heat dissipation structure.

10. The integrated liquid-cooled high-efficiency heat exchange flexible package module according to claim 9, wherein a heat conducting adhesive layer is arranged between the battery pack and the liquid-cooled plate.