CN220368000U

CN220368000U - Elastic liquid cooling plate of battery and battery module

Info

Publication number: CN220368000U
Application number: CN202321590839.6U
Authority: CN
Inventors: 刘韬军; 裴晓强; 程辉; 吴细彬; 付为哲; 卢臣智
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2024-01-19
Anticipated expiration: 2033-06-20

Abstract

The utility model discloses a battery elastic liquid cooling plate and a battery module, and belongs to the technical field of new energy batteries. The battery elastic liquid cooling plate comprises a plate main body with a hollow inside, a plurality of elastic strip components are arranged in the plate main body along the length direction, the plurality of elastic strip components divide the plate main body into a plurality of liquid cooling channels, two ends of the plate main body are respectively provided with a cooling liquid inlet and outlet component, and the cooling liquid inlet and outlet components are communicated with corresponding ends of the liquid cooling channels; the battery module comprises a battery assembly and a battery module box body, wherein the battery assembly comprises a plurality of single batteries which are distributed in a laminated mode, the battery assembly further comprises an elastic liquid cooling plate of the battery, and the elastic liquid cooling plate of the battery is used for being arranged on one side of the single batteries. The liquid cooling plate can be contacted with a large surface of a battery and has an elastic function.

Description

Elastic liquid cooling plate of battery and battery module

Technical Field

The utility model relates to the technical field of new energy batteries, in particular to a battery elastic liquid cooling plate and a battery module.

Background

The waiting time of the conventional design of the electric vehicle is generally 1-1.5 h, and in order to reduce the charging time, the charging current of the battery core needs to be improved, for example, the charging current of 4C is satisfied, and a large amount of heat is generated by the battery core, so that the cooling efficiency of the battery system needs to be improved.

The conventional cooling structure of the new energy battery system is divided into natural cooling, air cooling and liquid cooling. The traditional liquid cooling plate is generally arranged at the bottom of the battery cell, the heat dissipation area of the bottom of the battery cell is smaller, and the heat dissipation requirement of the high-rate charge-discharge battery cell cannot be met. If the heat exchange efficiency of the battery cell needs to be improved, the contact surface between the liquid cooling system and the battery cell needs to be increased, and the liquid cooling system is arranged on the large surface of the battery cell. Meanwhile, the battery cell can expand and contract under the heat expansion and cold contraction effects of charge and discharge circulation and temperature impact. Therefore, the large-area liquid cooling system structure needs to have the functions of elastic contraction, liquid cooling and the like.

Therefore, there is a need in the market for a liquid cooling plate that can be in contact with a large surface of a battery and has an elastic function.

Disclosure of Invention

The utility model provides a battery elastic liquid cooling plate and a battery module, which can be contacted with a large surface of a battery and have an elastic function.

In order to achieve the above purpose, the elastic liquid cooling plate for the battery comprises a plate main body with a hollow inside, wherein a plurality of elastic strip assemblies are arranged in the plate main body along the length direction, the elastic strip assemblies divide the liquid cooling plate into a plurality of liquid cooling flow channels, cooling liquid inlet and outlet assemblies are respectively arranged at two ends of the plate main body, and the cooling liquid inlet and outlet assemblies are communicated with corresponding ends of the liquid cooling flow channels. The liquid cooling plate main body can be made of aluminum materials.

Preferably, the elastic strip assembly comprises a plate main body with a hollow inside, a plurality of elastic strip assemblies are arranged in the plate main body along the length direction, the elastic strip assemblies divide the plate main body into a plurality of liquid cooling channels, cooling liquid inlet and outlet assemblies are respectively arranged at two ends of the plate main body, and the cooling liquid inlet and outlet assemblies are communicated with corresponding ends of the liquid cooling channels. The liquid cooling plate main body can be made of aluminum materials, and can also be made of other metal materials with heat conduction and certain elastic deformation.

Preferably, the elastic strip assembly comprises an elastic strip, and the elastic strip is arranged in the convex strip clamping groove. The elastic material can be foamed silica gel. The elastic material made of the foaming silica gel is combined with the liquid cooling plate made of the aluminum material, so that the whole liquid cooling plate has elastic deformation capacity, and the requirement of a battery on a circulating expansion space is met.

Preferably, the plate main body comprises a first side plate and a second side plate which are opposite to each other, wherein the inner wall of the first side plate is provided with a plurality of first raised lines, the inner wall of the second side plate is provided with a plurality of second raised lines, and the first raised lines and the second raised lines are in one-to-one correspondence; adjacent first sand grip forms sand grip draw-in groove, and adjacent second sand grip also forms sand grip draw-in groove, is provided with the elastic strip between the sand grip draw-in groove that is opposite.

Preferably, the cooling liquid inlet and outlet assembly consists of a flow dividing plate and an L-shaped inlet and outlet pipe, and one end of the L-shaped inlet and outlet pipe is connected with the flow dividing plate.

Preferably, two sides of the plate main body are provided with double-sided adhesive layers.

Preferably, the thickness of the double-sided adhesive layer is 1 mm-3 mm.

The utility model also provides a battery module, which comprises a battery assembly and a battery module box body, wherein the battery assembly comprises a plurality of single batteries which are distributed in a laminated way, the battery assembly further comprises an elastic liquid cooling plate of the battery, and the elastic liquid cooling plate of the battery is arranged on one side of the single batteries.

Preferably, the plate main body is attached to the single battery through a double-sided adhesive layer.

Preferably, a collecting pipe which is respectively communicated with the inlets and the outlets of the liquid cooling runners is arranged in the battery module box body.

Preferably, a water nozzle joint penetrating through the outer wall is arranged on the outer wall of the battery module box body, and the water nozzle joint is communicated with a collecting pipe of the inlet and the outlet through a hose.

The utility model has the beneficial effects that:

1. according to the utility model, the battery elastic liquid cooling plate is contacted with the large surface of the battery, so that the heat dissipation efficiency of the battery system is improved;

2. according to the utility model, the elastic strip component is arranged, so that the liquid cooling plate has elastic deformation capacity, and the requirement of a battery on a circulating expansion space is met.

Drawings

FIG. 1 is a schematic diagram of an elastic liquid cooling plate for a battery according to the present utility model;

fig. 2 is an explosion effect diagram of fig. 1:

FIG. 3 is a cross-sectional view of the plate body of the present utility model;

FIG. 4 is a perspective view of the access module of the present utility model;

fig. 5 is a perspective view of the battery module according to the present utility model;

fig. 6 is a view showing the installation effect of the elastic liquid cooling plate for a battery according to the present utility model.

Reference numerals:

the device comprises a plate body 1, a first side plate 11, a first protruding strip 111, a second side plate 12, a second protruding strip 121, an elastic strip component 2, an elastic strip 21, a liquid cooling runner 3, a cooling liquid inlet and outlet component 4, a flow dividing plate 41, an L-shaped inlet and outlet pipe 42, a double-sided adhesive layer 5, a battery component 6, a single battery 61, a battery module box 7, a collecting pipe 8 and a water nozzle joint 81.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise. "plurality" means "two or more".

The utility model will be further described with reference to the drawings and the specific examples.

Example 1

The elastic liquid cooling plate of the battery as shown in figures 1-4 comprises a plate main body 1 with a hollow inside, and two sides of the plate main body 1 are respectively provided with a double-sided adhesive layer 5 with the thickness of 2 mm. The inside a plurality of elastic strip subassemblies 2 that are equipped with of board main part 1 along length direction, a plurality of liquid cooling runner 3 are separated into with board main part 1 inside to a plurality of elastic strip subassemblies 2, and the both ends of board main part 1 are equipped with cooling liquid respectively and import and export subassembly 4, and cooling liquid import and export subassembly 4 and the corresponding tip intercommunication of liquid cooling runner 3. The cooling liquid inlet and outlet assembly 4 consists of a flow dividing plate 41 and an L-shaped inlet and outlet pipe 42, and one end of the L-shaped inlet and outlet pipe 42 is connected with the flow dividing plate 41.

The plate main body 1 comprises a first side plate 11 and a second side plate 12 which are opposite to each other, wherein a plurality of first raised strips 111 are arranged on the inner wall of the first side plate 11, a plurality of second raised strips 121 are arranged on the inner wall of the second side plate 12, and the first raised strips 111 and the second raised strips 121 are in one-to-one correspondence; adjacent first raised strips 111 form raised strip clamping grooves, adjacent second raised strips 121 also form raised strip clamping grooves, and elastic strips 21 are arranged between the opposite raised strip clamping grooves.

Example 2

The battery module shown in fig. 5 to 6 includes a battery assembly 6 and a battery module case 7, the battery assembly 6 includes a plurality of stacked single batteries 61, the battery assembly 6 further includes an elastic liquid cooling plate of the battery as in example 1, and the elastic liquid cooling plate of the battery is attached to one side of the plurality of single batteries 61 through a double-sided adhesive layer 5. And a collecting pipe 8 which is respectively communicated with the inlets and the outlets of the liquid cooling runners 3 is arranged in the battery module box body 7. The outer wall of the battery module box body 7 is provided with a water nozzle joint 81 penetrating through the outer wall, and the water nozzle joint 81 is communicated with a collecting pipe 8 of an inlet and an outlet through a hose.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims

1. An elastic liquid cooling plate of a battery, which is characterized in that: including inside hollow board main part (1), the inside length direction that follows of board main part (1) is equipped with a plurality of elastic strip subassemblies (2), and is a plurality of elastic strip subassemblies (2) are with board main part (1) internal partition into many liquid cooling runner (3), the both ends of board main part (1) are equipped with coolant liquid respectively and import and export subassembly (4), coolant liquid import and export subassembly (4) and liquid cooling runner (3) correspond tip intercommunication.

2. The elastic liquid-cooled panel of claim 1, wherein: the elastic strip assembly (2) comprises an elastic strip (21), and the elastic strip (21) is arranged in the raised strip clamping groove.

3. The elastic liquid-cooled panel of claim 2, wherein: the plate main body (1) comprises a first side plate (11) and a second side plate (12) which are opposite to each other, wherein a plurality of first raised strips (111) are arranged on the inner wall of the first side plate (11), a plurality of second raised strips (121) are arranged on the inner wall of the second side plate (12), and the first raised strips (111) and the second raised strips (121) are in one-to-one correspondence; adjacent first raised strips (111) form raised strip clamping grooves, adjacent second raised strips (121) also form raised strip clamping grooves, and elastic strips (21) are arranged between the opposite raised strip clamping grooves.

4. The elastic liquid-cooled panel of claim 1, wherein: the cooling liquid inlet and outlet assembly (4) is composed of a flow dividing plate (41) and an L-shaped inlet and outlet pipe (42), and one end of the L-shaped inlet and outlet pipe (42) is connected with the flow dividing plate (41).

5. The elastic liquid-cooled panel of claim 1, wherein: two sides of the plate main body (1) are provided with double-sided adhesive layers (5).

6. The elastic liquid-cooled panel of claim 5, wherein: the thickness of the double-sided adhesive layer (5) is 1 mm-3 mm.

7. The utility model provides a battery module, includes battery pack (6) and battery pack box (7), battery pack (6) include a plurality of range upon range of monomer battery (61) of distribution, its characterized in that: the battery assembly (6) further comprises an elastic liquid cooling plate of the battery according to claim 1, wherein the elastic liquid cooling plate of the battery is used for being arranged on one side of a plurality of single batteries (61).

8. The battery module according to claim 7, wherein: the plate main body (1) is attached to the single battery (61) through the double-sided adhesive layer (5).

9. The battery module according to claim 7, wherein: and a collecting pipe (8) which is respectively communicated with the inlets and the outlets of the liquid cooling runners (3) is arranged in the battery module box body (7).

10. The battery module according to claim 7, wherein: the battery module is characterized in that a water nozzle joint (81) penetrating through the outer wall is arranged on the outer wall of the battery module box body (7), and the water nozzle joint (81) is communicated with a collecting pipe (8) of an inlet and an outlet through a hose.