CN219066935U

CN219066935U - Distributed battery heat exchange structure and thermal management system

Info

Publication number: CN219066935U
Application number: CN202223155204.1U
Authority: CN
Inventors: 何雨生; 茅康伦; 鲜明; 孙煜; 朱江辉; 陈亚健
Original assignee: Zhejiang Yinlun New Energy Thermal Management System Co ltd
Current assignee: Zhejiang Yinlun New Energy Thermal Management System Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-23
Anticipated expiration: 2032-11-25

Abstract

The utility model relates to a distributed battery heat exchange structure and thermal management system, this distributed battery heat exchange structure is used for carrying out the heat transfer to battery module, distributed battery heat exchange structure includes heat transfer device, control valve and a plurality of heat transfer board, a plurality of heat transfer boards paste respectively and locate battery module's different sides, every heat transfer board all is equipped with the heat transfer passageway, heat transfer device communicates different heat transfer passageway respectively and forms circulation loop through the control valve, the control valve can adjust the circulation of heat transfer medium in the different heat transfer passageway. The utility model provides a distributed battery heat exchange structure has solved current battery heat transfer system and has been difficult to carrying out effective control to the heat dissipation capacity of battery under different operating modes to lead to the operating temperature of battery too high or too low easily, and then lead to the too fast problem of battery decay.

Description

Distributed battery heat exchange structure and thermal management system

Technical Field

The application relates to the technical field of battery thermal management, in particular to a distributed battery heat exchange structure and a thermal management system.

Background

When an electric automobile runs under different running conditions, the battery can generate a large amount of heat, and the service life and performance of the battery can be reduced due to the fact that the temperature of the battery is too high, so that the battery needs to be cooled.

At present, a high-density high-performance battery is also a mainstream development direction, which also means that the heat generated by the battery during operation is greatly increased, and therefore, the heat exchange system of the battery is also required to be higher. In addition, the heat exchange requirements of the battery on the heat exchange system are different under different working conditions (including ambient temperature, working time and the like). For example, when the ambient temperature is low in winter, most of the heat generated by the battery is neutralized by the atmosphere in the environment, and at this time, if the heat exchange system continues to cool the battery, the normal operation of the battery is affected. Conversely, when the temperature of the environment is high in summer, the heat generated by the battery is difficult to be neutralized by the atmosphere in the environment, and at this time, the heat exchange system is required to strengthen the effect of cooling the battery. However, the conventional battery heat exchange system is difficult to effectively control the heat dissipation capacity of the battery under different working conditions, so that the working temperature of the battery is easily too high or too low, and the battery is further attenuated too fast.

Disclosure of Invention

Based on this, it is necessary to provide a distributed battery heat exchange structure and a thermal management system, so as to solve the problem that the existing battery heat exchange system is difficult to effectively control the heat dissipation capacity of the battery under different working conditions, so that the working temperature of the battery is too high or too low, and the battery is too fast to attenuate.

The utility model provides a distributed battery heat exchange structure for heat transfer to battery module, distributed battery heat exchange structure includes heat transfer device, control valve and a plurality of heat transfer board, and a plurality of heat transfer boards paste respectively and locate battery module's different sides, and every heat transfer board all is equipped with heat transfer channel, and heat transfer device communicates different heat transfer channel respectively and forms circulation loop through the control valve, and the control valve can adjust the circulation of heat transfer medium in the different heat transfer channel.

In one embodiment, the distributed battery heat exchange structure further comprises a bracket assembly, wherein the bracket assembly is arranged on the outer side of the battery module and surrounds the surface of the battery module to form a plurality of assembly spaces, and each assembly space is internally provided with a heat exchange plate correspondingly.

In one embodiment, the bracket assembly comprises a first bracket and a second bracket which are fixedly connected, the first bracket and the second bracket are respectively in a right-angle bending shape, the first bracket and the second bracket enclose to form a containing cavity, and the battery module and the heat exchange plates are respectively arranged in the containing cavity.

In one embodiment, the heat exchanger plates are removably mounted to the bracket assembly by fasteners.

In one embodiment, the two heat exchange plates attached to opposite sides of the battery module are distributed in a rotationally symmetrical manner with respect to a center line of the battery module in the length direction.

In one embodiment, the heat exchange plate comprises a main plate and a cover plate, the main plate is provided with a heat exchange groove, the cover plate is detachably connected to one side of the main plate, provided with the heat exchange groove, and the cover plate covers the opening of the heat exchange groove to form a heat exchange channel.

In one embodiment, the heat exchange channel includes a plurality of side-by-side branch channels.

In one embodiment, the distributed battery heat exchange structure further comprises a liquid inlet collecting pipe and a liquid outlet collecting pipe, wherein the liquid inlet collecting pipe and the liquid outlet collecting pipe are respectively arranged at two ends of the heat exchange plate, and the plurality of branch channels are respectively communicated with the liquid inlet collecting pipe and the liquid outlet collecting pipe.

In one embodiment, the plurality of heat exchange plates are arranged around the central line of the length direction of the battery module, the liquid inlet collecting pipe and the liquid outlet collecting pipe on each heat exchange plate are distributed along the length direction of the battery module, and the liquid inlet collecting pipe and the liquid outlet collecting pipe are respectively stopped at two ends of the length direction of the battery module.

The present application also provides a thermal management system comprising a distributed battery heat exchange structure as described in any one of the embodiments above.

Compared with the prior art, the distributed battery heat exchange structure and the thermal management system provided by the application have the advantages that the control valve can adjust the flow of heat exchange medium (including but not limited to cooling liquid) in the corresponding heat exchange channel. Therefore, when the heat dissipation capacity required by the battery is large, the control valve can introduce heat exchange media into all heat exchange plates at the side part of the battery module, so that the battery module is cooled greatly. When the heat dissipation capacity required by the battery is smaller, the control valve can only introduce heat exchange medium into the heat exchange plate at the side part of the battery module, so that the battery module is cooled slightly. Even the control valve can close the communication between the heat exchange device and all heat exchange channels so as to realize the temperature rise of the battery module. And moreover, one of the heat exchange plates is damaged, so that the whole battery module cannot dissipate heat, and the operation fault tolerance of the distributed battery heat exchange structure is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of embodiments or conventional techniques of the present application, the drawings that are required to be used in the description of the embodiments or conventional techniques will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 is a schematic structural diagram of a distributed battery heat exchange structure according to an embodiment provided herein;

FIG. 2 is an exploded view of a distributed battery heat exchange structure according to one embodiment provided herein;

fig. 3 is a schematic structural diagram of a heat exchange plate according to an embodiment provided in the present application.

Reference numerals: 100. a control valve; 200. a heat exchange plate; 210. a heat exchange channel; 211. a branch channel; 220. a main board; 221. a heat exchange tank; 230. a cover plate; 300. a liquid inlet collecting pipe; 400. a liquid outlet collecting pipe; 500. a bracket assembly; 510. a first bracket; 520. a second bracket; 600. and a battery module.

Detailed Description

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being 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 at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-3, in order to solve the problem that the existing battery heat exchange system is difficult to effectively control the heat dissipation capacity of the battery under different working conditions, the working temperature of the battery is easily too high or too low, and the battery is attenuated too quickly. The application provides a distributed battery heat exchange structure, this distributed battery heat exchange structure is used for carrying out heat transfer to battery module 600, distributed battery heat exchange structure includes heat transfer device (not shown), control valve 100 and a plurality of heat transfer board 200, a plurality of heat transfer boards 200 paste respectively and locate the different sides of battery module 600, every heat transfer board 200 all is equipped with heat transfer channel 210, heat transfer device communicates different heat transfer channel 210 respectively and forms circulation loop through control valve 100, control valve 100 can adjust the circulation of heat transfer medium in the different heat transfer channel 210.

The battery module 600 may be a battery module, a battery cell, or an assembly of a plurality of battery cells.

Further, the heat exchange device includes a plurality of parts such as a compressor, a liquid pump, and an expansion kettle, which are not listed here.

Since the control valve 100 is capable of regulating the flow of heat exchange medium (including but not limited to coolant) within the corresponding heat exchange channel 210. Therefore, when the heat dissipation capacity required by the battery is large, the control valve 100 can introduce the heat exchange medium into all the heat exchange plates 200 at the side of the battery module 600, so as to achieve a large temperature reduction of the battery module 600. When the heat dissipation capacity required by the battery is small, the control valve 100 can only introduce the heat exchange medium into the heat exchange plate 200 at the side part of the battery module 600, so as to realize small-scale cooling of the battery module 600. Even the control valve 100 can close the communication between the heat exchanging means and all the heat exchanging channels 210 to achieve the warming of the battery module 600. In addition, one of the heat exchange plates 200 is damaged, so that the whole battery module 600 cannot dissipate heat, and the operation fault tolerance of the distributed battery heat exchange structure is greatly improved.

Further, in an embodiment, control valve 100 includes, but is not limited to, a bypass valve and a multi-way valve.

Specifically, in an embodiment, the control valve 100 is a five-way valve, and the number of the heat exchange plates 200 is four, and the heat exchange channels 210 of the four heat exchange plates 200 are respectively communicated with the heat exchange device through the five-way valve.

In one embodiment, as shown in fig. 1 and 2, two heat exchange plates 200 attached to opposite sides of the battery module 600 are rotationally symmetrically distributed about a center line of the battery module 600 in the length direction.

In this way, the plurality of parts (including but not limited to the liquid inlet header 300 and the liquid outlet header 400) on the heat exchange plate 200 may be prevented from interfering with each other to affect the installation of the heat exchange plate 200.

In an embodiment, as shown in fig. 2, the heat exchange plate 200 includes a main board 220 and a cover board 230, the main board 220 is provided with a heat exchange groove 221, the cover board 230 is detachably connected to one side of the main board 220 provided with the heat exchange groove 221, and the cover board 230 covers an opening of the heat exchange groove 221 to form a heat exchange channel 210.

In this way, the difficulty in processing the heat exchange channels 210 is reduced.

Further, in one embodiment, as shown in FIG. 3, the heat exchange channel 210 includes a plurality of side-by-side branch channels 211.

Thus, it is advantageous to improve heat exchange efficiency at different positions of the heat exchange plate 200.

Further, in an embodiment, as shown in fig. 2 and 3, the distributed battery heat exchange structure further includes a liquid inlet header 300 and a liquid outlet header 400, the liquid inlet header 300 and the liquid outlet header 400 are respectively disposed at two ends of the heat exchange plate 200, and the plurality of branch channels 211 are respectively communicated with the liquid inlet header 300 and the liquid outlet header 400.

In this manner, the heat exchange medium is facilitated to enter and exit the heat exchange channels 210.

Further, in an embodiment, as shown in fig. 1 and 2, the plurality of heat exchange plates 200 are disposed around the central line of the battery module 600 in the length direction, the liquid inlet collecting pipe 300 and the liquid outlet collecting pipe 400 on each heat exchange plate 200 are distributed along the length direction of the battery module 600, and the liquid inlet collecting pipe 300 and the liquid outlet collecting pipe 400 are respectively stopped at two ends of the battery module 600 in the length direction.

In this way, the battery module 600 can be limited by the heat exchange plate 200, the liquid inlet collecting pipe 300 and the liquid outlet collecting pipe 400, and the battery module 600 is prevented from moving.

In an embodiment, as shown in fig. 1 and 2, the distributed battery heat exchange structure further includes a bracket assembly 500, where the bracket assembly 500 is disposed on the outer side of the battery module 600 and encloses a plurality of assembly spaces (not shown) with the surface of the battery module 600, and one heat exchange plate 200 is correspondingly installed in each assembly space.

In this way, the heat exchange plates 200 may be installed in the assembly space according to actual needs, and when one or more of the heat exchange plates 200 is damaged, the heat exchange plates 200 may be individually removed from the corresponding assembly space. In this way, the installation, maintenance and replacement of the heat exchange plate 200 are greatly facilitated.

Further, in an embodiment, as shown in fig. 1 and 2, the heat exchange plate 200 is detachably mounted to the bracket assembly 500 by fasteners.

Specifically, in an embodiment, as shown in fig. 1 and 2, the bracket assembly 500 includes a first bracket 510 and a second bracket 520 that are fixedly connected, the first bracket 510 and the second bracket 520 are all in a right-angle bent shape, and the first bracket 510 and the second bracket 520 enclose to form a containing cavity, and the battery module 600 and the plurality of heat exchange plates 200 are all disposed in the containing cavity.

In this manner, the difficulty of assembling the bracket assembly 500 is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of the present application is to be determined by the following claims.

Claims

1. The utility model provides a distributed battery heat transfer structure, its characterized in that is used for carrying out heat transfer to battery module (600), distributed battery heat transfer structure includes heat transfer device, control valve (100) and a plurality of heat transfer board (200), and a plurality of heat transfer board (200) paste respectively and locate the different sides of battery module (600), every heat transfer board (200) all are equipped with heat transfer passageway (210), heat transfer device passes through control valve (100) are different intercommunication respectively heat transfer passageway (210) and form circulation loop, control valve (100) can adjust the difference heat transfer medium's in heat transfer passageway (210 circulation loop.

2. The distributed battery heat exchange structure according to claim 1, further comprising a bracket assembly (500), wherein the bracket assembly (500) is arranged on the outer side of the battery module (600) and encloses a plurality of assembly spaces with the surface of the battery module (600), and each assembly space is internally provided with one heat exchange plate (200) correspondingly.

3. The distributed battery heat exchange structure according to claim 2, wherein the bracket assembly (500) comprises a first bracket (510) and a second bracket (520) which are fixedly connected, the first bracket (510) and the second bracket (520) are bent at right angles, the first bracket (510) and the second bracket (520) are enclosed to form a containing cavity, and the battery module (600) and a plurality of heat exchange plates (200) are arranged in the containing cavity.

4. The distributed battery heat exchange structure of claim 2, wherein the heat exchange plates (200) are removably mounted to the bracket assembly (500) by fasteners.

5. The distributed battery heat exchange structure according to claim 1, wherein the two heat exchange plates (200) attached to opposite sides of the battery module (600) are rotationally symmetrically distributed about a center line of the battery module (600) in a length direction.

6. The distributed battery heat exchange structure according to claim 1, wherein the heat exchange plate (200) comprises a main plate (220) and a cover plate (230), the main plate (220) is provided with a heat exchange groove (221), the cover plate (230) is detachably connected to one side of the main plate (220) provided with the heat exchange groove (221), and the cover plate (230) covers the opening of the heat exchange groove (221) to form the heat exchange channel (210).

7. The distributed battery heat exchange structure according to claim 1, wherein the heat exchange channel (210) comprises a plurality of side-by-side branch channels (211).

8. The distributed battery heat exchange structure according to claim 7, further comprising a liquid inlet header (300) and a liquid outlet header (400), wherein the liquid inlet header (300) and the liquid outlet header (400) are respectively disposed at two ends of the heat exchange plate (200), and the plurality of branch channels (211) are respectively communicated with the liquid inlet header (300) and the liquid outlet header (400).

9. The distributed battery heat exchange structure according to claim 8, wherein a plurality of the heat exchange plates (200) are arranged around the center line of the battery module (600) in the length direction around the periphery of the battery module (600), the liquid inlet collecting pipe (300) and the liquid outlet collecting pipe (400) on each heat exchange plate (200) are distributed along the length direction of the battery module (600), and the liquid inlet collecting pipe (300) and the liquid outlet collecting pipe (400) are respectively stopped at two ends of the battery module (600) in the length direction.

10. A thermal management system comprising the distributed battery heat exchange structure of any one of claims 1-9.