CN218241986U - Integrated cold drawing, battery package and vehicle - Google Patents

Abstract

Integrate cold plate, battery package and vehicle. Integrated cold drawing includes a plurality of cold drawing units, and a plurality of cold drawing units are arranged along the first direction, and the cold drawing unit includes diaphragm and two curb plates, and two curb plates are arranged along the first direction, and the curb plate extends along the second direction, the diaphragm is formed with the cooling runner that extends along the third direction, the first direction the second direction the third direction is inequality each other, adjacent two be connected with one between the cold drawing unit the curb plate, diaphragm and two the curb plate is formed with the open end and the cavity that are linked together jointly, the open end does the cavity is kept away from the open end of diaphragm one side, the open end with the diaphragm is relative.

Description

Integrated cold drawing, battery package and vehicle

Technical Field

The application relates to the technical field of new energy batteries, in particular to an integrated cold plate, a battery pack and a vehicle.

Background

The battery package is at heavy current charge-discharge in-process, and the inside a large amount of heats that can gather of battery package, if the heat is not in time controlled, the temperature of the battery module in the battery package can sharply rise. Especially, the large-capacity battery module has larger energy density and higher heat release, is easy to cause thermal runaway, causes the problems of gas release, smoke emission, liquid leakage and the like of the battery pack, and even can cause the combustion, explosion and the like of the battery. When dispelling the heat to battery module usually, place battery tray with battery module in to set up water-cooling structure and cool off battery module on battery tray's side, and if adopt the side to arrange water-cooling structure and arrange multirow battery module, the attached water-cooling structure of battery module large tracts of land that is close to the side, the temperature is lower, and middle zone's battery module is owing to keep away from water-cooling structure, and the temperature is higher, and then the thermal management temperature uniformity that leads to whole battery package is relatively poor.

SUMMERY OF THE UTILITY MODEL

The application provides an integrated cold plate, battery package and vehicle for solve the relatively poor problem of thermal management temperature uniformity of battery package at least.

The utility model provides an integrated cold drawing includes a plurality of cold drawing units, and is a plurality of the cold drawing unit is arranged along the first direction, the cold drawing unit includes diaphragm and two curb plates, and is a plurality of the curb plate is followed the first direction is arranged, the curb plate extends along the second direction, the diaphragm is formed with the cooling runner that extends along the third direction, the first direction the second direction the third direction is inequality each other, adjacent two be connected with one between the cold drawing unit the curb plate, diaphragm and two the curb plate is formed with the open end and the cavity that are linked together jointly, the open end does the cavity is kept away from the open end of diaphragm one side, the open end with the diaphragm is relative.

In a possible embodiment, the transverse plates include a first transverse plate and a second transverse plate, the cooling flow channel includes a first flow channel and a second flow channel, the opening end includes a first opening and a second opening, the chamber includes a first cavity and a second cavity, the first transverse plate is formed with the first flow channel extending along a third direction, the second transverse plate is formed with the second flow channel extending along the third direction, and one of the side plates is connected between the first transverse plate and the second transverse plate. The first transverse plate and the two side plates jointly form a first opening and a first cavity which are communicated, the first opening is an open end of the first cavity, which is far away from one side of the first transverse plate, and the first opening is opposite to the first transverse plate. The second transverse plate and the two side plates jointly form a second opening and a second cavity which are communicated, the second opening is an open end of the second cavity, the second opening is far away from one side of the second transverse plate, the second opening is opposite to the second transverse plate, and the first cavity and the second cavity are arranged in parallel along the first direction.

In a possible embodiment, the side plates include a first connecting end and a second connecting end which are oppositely arranged along the second direction, the first transverse plate is fixedly connected between the first connecting ends of the two side plates, and the second transverse plate is fixedly connected between the second connecting ends of the two side plates.

In a possible implementation manner, the side plate includes a first sub-plate and a second sub-plate that are sequentially connected along the second direction, the first sub-plate and the second sub-plate both extend along the second direction, the two ends of the first transverse plate that are oppositely disposed along the first direction are respectively connected to the second sub-plate, and the two ends of the second transverse plate that are oppositely disposed along the first direction are respectively connected to the first sub-plate.

In a possible implementation manner, the first flow channel includes a first liquid inlet channel and a first liquid outlet channel that are communicated, the first transverse plate is provided with a first liquid inlet that is communicated with the first liquid inlet channel, the first transverse plate is provided with a first liquid outlet that is communicated with the first liquid outlet channel, and a heat exchange medium can enter the first liquid inlet channel through the first liquid inlet channel and then flow out of the first liquid outlet through the first liquid outlet channel.

In a possible implementation manner, the first liquid outlet flow channel includes a first sub liquid outlet flow channel and a second sub liquid outlet flow channel extending along the third direction, the first sub liquid outlet flow channel and the second sub liquid outlet flow channel are located at two opposite sides of the first liquid inlet flow channel along the first direction, the heat exchange medium can enter the first liquid inlet flow channel from the first liquid inlet, flow out from the first liquid outlet communicated with the first sub liquid outlet flow channel after passing through the first sub liquid outlet flow channel, and flow out from the first liquid outlet communicated with the second sub liquid outlet flow channel after passing through the second sub liquid outlet flow channel.

In a possible implementation manner, the second flow channel includes a second liquid inlet flow channel and a second liquid outlet flow channel that are communicated, the second transverse plate is provided with a second liquid inlet that is communicated with the second liquid inlet flow channel, the second transverse plate is provided with a second liquid outlet that is communicated with the second liquid outlet flow channel, and a heat exchange medium can enter the second liquid inlet flow channel through the second liquid outlet flow channel and then flow out of the second liquid outlet.

In a possible implementation manner, the second liquid outlet flow channel includes a third sub liquid outlet flow channel and a fourth sub liquid outlet flow channel extending along the third direction, the third sub liquid outlet flow channel and the fourth sub liquid outlet flow channel are located at two opposite sides of the second liquid inlet flow channel along the first direction, the heat exchange medium can enter the second liquid inlet flow channel from the second liquid inlet, flow out from the second liquid outlet communicated with the third sub liquid outlet flow channel after passing through the third sub liquid outlet flow channel, and flow out from the second liquid outlet communicated with the fourth sub liquid outlet flow channel after passing through the fourth sub liquid outlet flow channel.

In a possible implementation manner, the first transverse plate is provided with a first liquid inlet and a first liquid outlet which are communicated with the first flow channel, the second transverse plate is provided with a second liquid inlet and a second liquid outlet which are communicated with the second flow channel, the integrated cold plate further comprises a first collecting pipe and a second collecting pipe which extend along the first direction, the first collecting pipe is arranged at one end of the first transverse plate where the first liquid inlet is located, the second collecting pipe is arranged at one end of the second transverse plate where the second liquid inlet is located, the first collecting pipe comprises a first liquid inlet pipe and a first liquid outlet pipe which are arranged in parallel along the second direction, the first liquid inlet pipe and the first liquid outlet pipe both extend along the first direction, the first liquid inlet pipe is communicated with the first liquid inlet, and the first liquid outlet pipe is communicated with the first liquid outlet; the second collecting pipe comprises a second liquid inlet pipe and a second liquid outlet pipe, the second liquid inlet pipe and the second liquid outlet pipe are arranged in parallel in the second direction, the second liquid inlet pipe and the second liquid outlet pipe extend in the first direction, the second liquid inlet pipe is communicated with the second liquid inlet, and the second liquid outlet pipe is communicated with the second liquid outlet.

In a possible embodiment, the integrated cold plate includes a heat conductive adhesive, the heat conductive adhesive is disposed on a surface of the first transverse plate located in the first cavity, and the heat conductive adhesive is disposed on a surface of the second transverse plate located in the second cavity.

The battery pack provided herein includes a plurality of battery packs and an integrated cold plate as described in any of the embodiments herein. The number of the battery packs is not larger than that of the cold plate units, the battery packs are arranged in the cavities, and each battery pack comprises at least one electric core.

The vehicle that this application provided includes automobile body and the battery package of any embodiment of this application. The battery pack is mounted to the vehicle body.

The utility model provides an integrated cold drawing, in battery package and the vehicle, integrated cold drawing is formed with a plurality of cold drawing units, diaphragm in every cold drawing unit all is formed with the cooling runner that extends along the third direction, the group battery can all be placed in the cavity of every cold drawing unit, the group battery in every cold drawing unit carries out the heat transfer through the heat transfer medium in the cooling runner in this cold drawing unit, make the temperature difference between the group battery in the different cold drawing units less, the samming performance of integrated cold drawing is good, thermal management temperature uniformity is better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a vehicle and a battery pack according to an embodiment of the present disclosure;

fig. 2 is a schematic exploded perspective view of a battery pack and an integrated cold plate in a battery pack according to an embodiment of the present disclosure;

FIG. 3 is a schematic perspective view of an integrated cold plate according to an embodiment of the present disclosure;

FIG. 4 is a cross-sectional schematic view of the integrated cold plate of FIG. 3 taken along line IV-IV;

fig. 5 is a schematic perspective view illustrating a separated first sub-panel and a separated second sub-panel in a side panel of an integrated cold plate according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of an integrated cold plate according to an embodiment of the present application;

FIG. 7 is a schematic perspective view of another perspective view of an integrated cold plate according to an embodiment of the present disclosure;

FIG. 8 is a cross-sectional schematic view of the cold plate unit of the integrated cold plate of FIG. 7 taken along line VIII-VIII;

FIG. 9 is a schematic structural diagram of a first flow passage in a first cross plate according to an embodiment of the present application;

fig. 10 is a schematic cross-sectional view of a cold plate unit and a cell in an integrated cold plate according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a second flow passage in a second cross plate according to an embodiment of the present application.

Reference numerals are as follows:

a first direction X, a second direction Y and a third direction Z;

integrated cold plate 100, cold plate unit 101, cross plate 1011, cooling channel 1012, open end 1013, chamber 1014;

the liquid level sensor comprises a first transverse plate 10, a first flow channel 11, a first liquid inlet flow channel 111, a first liquid inlet 1111, a first sub liquid inlet flow channel 1112, a second sub liquid inlet flow channel 1113, a first liquid outlet flow channel 112, a first liquid outlet 1121, a first sub liquid outlet flow channel 1122, a second sub liquid outlet flow channel 1123, a first end 12 and a second end 13;

a second transverse plate 20, a second flow channel 21, a second liquid inlet flow channel 211, a second liquid inlet 2111, a third sub liquid inlet flow channel 2112, a fourth sub liquid inlet flow channel 2113, a second liquid outlet flow channel 212, a third sub liquid outlet flow channel 2122, a fourth sub liquid outlet flow channel 2123, a third end 22 and a fourth end 23;

side plates 30, first connection end portions 31, second connection end portions 32, first sub-plates 33, and second sub-plates 34;

first cavity 40, first opening 41;

second cavity 50, second opening 51;

a first collecting pipe 60, a first liquid inlet pipe 61 and a first liquid outlet pipe 62;

a second collecting pipe 70, a second liquid inlet pipe 71 and a second liquid outlet pipe 72;

a thermally conductive adhesive 80;

a tray 200 and an accommodating space 201;

battery pack 300, battery cell 301;

a cover plate 400;

a battery pack 1000;

vehicle 2000, vehicle body 2001.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.

The following description of the various embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments that can be implemented by the application. Directional phrases referred to in this application, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer to the orientation of the appended drawings and are therefore used in a better and clearer sense of description and understanding of the present application, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

Moreover, the ordinal numbers used herein for the components, such as "first," "second," etc., are used merely to distinguish between the objects described, and do not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified.

Referring to fig. 1, the present application provides a vehicle 2000, where the vehicle 2000 includes a vehicle body 2001 and a battery pack 1000 according to any one of the embodiments of the present application, and the battery pack 1000 is mounted on the vehicle body 2001.

Referring to fig. 2, 3 and 4, a battery pack 1000 is provided. The battery pack 1000 includes a tray 200, a cover plate 400, a plurality of battery packs 300, and an integrated cold plate 100 according to any embodiment of the present application. Integrated cold plate 100 includes a plurality of cold plate units 101, a plurality of cold plate units 101 are arranged along first direction X, cold plate unit 101 includes horizontal board 1011 and two curb plates 30, two curb plates 30 are arranged along first direction X, curb plate 30 extends along second direction Y, horizontal board 1011 is formed with the cooling runner 1012 that extends along third direction Z, first direction X, second direction Y, third direction Z is different each other, be connected with a curb plate 30 between two adjacent cold plate units 101, horizontal board 10 is formed with open end 1013 and the cavity 1014 that is linked together with two curb plates 30 jointly, open end 1013 is the open end that cavity 1014 kept away from horizontal board 10 one side, open end 1013 is relative with horizontal board 1011. The number of the battery packs 300 is not greater than (i.e., less than or equal to) the number of the cold plate units 101, the battery packs 300 are mounted in the chamber 1014, and the battery packs 300 include at least one cell. The tray 200 is formed with a receiving space 201. The cover plate 400 is coupled to the tray 200, and the cover plate 400 and the tray 200 together enclose the integrated cold plate 100 and the plurality of battery packs 300 within the receiving space 201.

The battery package is at heavy current charge-discharge in-process, and the inside a large amount of heat that can accumulate of battery, if the heat is not in time controlled, the temperature of battery module can sharply rise. Especially, the large-capacity battery module has larger energy density and higher heat release, is easy to cause thermal runaway, causes the problems of gas release, smoke emission, liquid leakage and the like of the battery, and even can cause the combustion, explosion and the like of the battery. When dispelling the heat to battery module usually, place battery tray with battery module in to set up water-cooling structure and cool off battery module on battery tray's side, and if adopt the side to arrange water-cooling structure and arrange multirow battery module, the attached water-cooling structure of battery module large tracts of land that is close to the side, the temperature is lower, and middle zone's battery module is owing to keep away from water-cooling structure, and the temperature is higher, and then the thermal management temperature uniformity that leads to whole battery package is relatively poor.

The integrated cold plate 100 of the application, in battery package 1000 and vehicle 2000, integrated cold plate 100 is formed with a plurality of cold plate units 101, diaphragm 1011 in every cold plate unit 101 all is formed with along the cooling runner 1012 of third direction Z extension, group battery 300 has all been placed in chamber 1014 of every cold plate unit 101, group battery 300 in every cold plate unit 101 exchanges heat through the heat transfer medium in the cooling runner 1012 in this cold plate unit 101, make the temperature difference between the group battery 300 in different cold plate units 101 less, integrated cold plate 100's samming performance is good, thermal management temperature uniformity is better.

In one possible embodiment, the cross plate 1011 includes a first cross plate 10 and a second cross plate 20, the cooling channel 1012 includes a first channel 11 and a second channel 21, the open end 1013 includes a first opening 41 and a second opening 51, the chamber 1014 includes a first cavity 40 and a second cavity 50, the first cross plate 10 is formed with the first channel 11 extending along the third direction Z, the second cross plate 20 is formed with the second channel 21 extending along the third direction Z, and one side plate 30 is connected between the first cross plate 10 and the second cross plate 20. The first transverse plate 10 and the two side plates 30 jointly form a first opening 41 and a first cavity 40 which are communicated with each other, the first opening 41 is an open end of the first cavity 40 on a side away from the first transverse plate 10, and the first opening 41 is opposite to the first transverse plate 10. The second cross plate 20 and the two side plates 30 together form a second opening 51 and a second chamber 50 which are communicated, the second opening 51 is an open end of the second chamber 50 on a side away from the second cross plate 20, the second opening 51 is opposite to the second cross plate 20, and the first chamber 40 and the second chamber 50 are arranged in parallel along the first direction X.

Among them, the battery pack 300 includes a plurality of battery cells 301. The battery unit 301 may be a battery cell or a battery module composed of a plurality of battery cells. The battery unit 301 can be installed in the first cavity 40, when a plurality of battery cells are arranged in the battery unit 301, the plurality of battery cells are arranged along the first direction X, one side of the battery unit 301 in the first cavity 40 is abutted to the first transverse plate 10, and when a heat exchange medium is input into the first flow channel 11, the battery unit 301 in the first cavity 40 can exchange heat through the heat exchange medium in the first flow channel 11. Similarly, the battery unit 301 is installed in the second cavity 50, when a plurality of battery cells are installed in the battery unit 301, the plurality of battery cells are arranged along the first direction X, one side of the battery unit 301 in the second cavity 50 abuts against the second transverse plate 20, and when a heat exchange medium is input into the second flow channel 21, the battery unit 301 in the second cavity 50 can exchange heat through the heat exchange medium in the second flow channel 21. Therefore, the temperature difference between the battery unit 301 placed in the first cavity 40 and the battery unit 301 placed in the second cavity 50 is small, the thermal management temperature consistency of the integrated cold plate 100 on the battery pack 300 is good, and the battery unit 301 (when the battery unit 301 is an electric core) can be integrated into a battery module through the integrated cold plate 100, and then the battery module is placed in the accommodating space 201 of the tray 200 to form the battery pack 1000. In addition, when battery unit 301 was the battery module that a plurality of electric cores were constituteed, accessible integrated cold plate 100 was integrated with a plurality of battery modules, will install a plurality of battery modules again and place in tray 200's accommodating space 201, constitutes the battery package 1000 that energy density is higher.

In the integrated cold plate 100 of the application, the first transverse plate 10 and the two side plates 30 are formed with the first cavity 40, the second transverse plate 20 and the two side plates 30 are formed with the second cavity 50, the first transverse plate 10 is provided with the first flow channel 11 extending along the third direction Z, the second transverse plate 20 is provided with the second flow channel 21 extending along the third direction Z, the battery units 301 (shown in fig. 2) are placed in the first cavity 40 and the second cavity 50, the battery units 301 in the first cavity 40 exchange heat through the heat exchange medium in the first flow channel 11 located on one side of the first cavity 40, the battery units 301 in the second cavity 50 exchange heat through the heat exchange medium in the second flow channel 21, so that the temperature difference between the battery units 301 in the first cavity 40 and the battery units 301 in the second cavity 50 is small, the temperature equalizing performance of the integrated cold plate 100 is good, and the thermal management temperature consistency is better.

Specifically, the first cavity 40 and the second cavity 50 share one side plate 30, and when the battery cell 301 is placed in the first cavity 40, the battery cell 301 may be placed in the first cavity 40 through the first opening 41, and similarly, when the battery cell 301 is placed in the second cavity 50, the battery cell 301 may be placed in the second cavity 50 through the second opening 51.

In a possible embodiment, the first transverse plate 10, the second transverse plate 20, and the plurality of side plates 30 are integrated, specifically, the integrated cold plate 100 of the integrated structure can be manufactured through die casting or stamping and bending processes, the first transverse plate 10, the second transverse plate 20, and the plurality of side plates 30 are connected without any connecting structure, the first transverse plate 10, the second transverse plate 20, and the plurality of side plates 30 are integrated without interfaces, the heat exchange medium does not leak and fail in the first flow channel 11 and the second flow channel 21, and the safety of the integrated cold plate 100 is high. And the first transverse plate 10, the second transverse plate 20 and the plurality of side plates 30 are connected without any connecting structure, so that the manufacturing cost can be effectively reduced.

In this application, the integrated cold plate 100 may be used to integrate a plurality of battery cells 301 in addition to exchanging heat for the battery cells 301, so that the integration level of the battery pack 1000 is higher.

In a possible embodiment, the side plate 30 comprises a first connecting end 31 and a second connecting end 32, oppositely arranged along the second direction Y. The first cross plate 10 is fixedly connected between the first connecting end portions 31 of the two side plates 30, and the second cross plate 20 is fixedly connected between the second connecting end portions 32 of the two side plates 30.

The cold plate unit 101 may be formed by a first horizontal plate 10, a second horizontal plate 20 and three side plates 30, and two adjacent cold plate units 101 share one side plate 30.

As shown in fig. 4, the first connecting end portion 31 of the side plate 30 is one end of the side plate 30 close to the first transverse plate 10, the second connecting end portion 32 of the side plate 30 is one end of the side plate 30 close to the second transverse plate 20, two ends of the first transverse plate 10, which are oppositely arranged in the first direction X, are fixedly connected with the first connecting end portions 31 of the two side plates 30, respectively, and two ends of the second transverse plate 20, which are oppositely arranged in the first direction X, are fixedly connected with the second connecting end portions 32 of the two side plates 30, respectively, so that the integrated cold plate 100 is in a wave structure (for example, a rectangular wave shown in fig. 4), the multiple battery units 301 can be placed in the first cavity 40 and the second cavity 50 through the integrated cold plate 100, on one hand, the multiple battery units 301 are integrated into the battery pack 1000, on the other hand, the battery units 301 can be subjected to heat exchange through the first flow channel 11 in the first transverse plate 10 and the second flow channel 21 in the second transverse plate 20, and the first flow channel 11 and the second flow channel 21 are not communicated, and the heat exchange medium in the first flow channel 11 and the second flow channel 21 can perform effective heat exchange medium exchange on the battery unit 301, so that the temperature difference of the battery pack is small temperature difference of the battery units 100 is ensured.

In a possible embodiment, the side plates 30 are of an integral structure, which is simple in structure and facilitates the connection between the side plates 30 and the first and second transverse plates 10, 20.

Referring to fig. 5, in another possible embodiment, the side plate 30 includes a first sub-plate 33 and a second sub-plate 34 connected in sequence along the second direction Y, the first sub-plate 33 and the second sub-plate 34 both extend along the second direction Y, two ends of the first horizontal plate 10 opposite to each other along the first direction X are respectively connected to one second sub-plate 34, and two ends of the second horizontal plate 20 opposite to each other along the first direction X are respectively connected to one first sub-plate 33.

At this time, the first connection end 31 is an end of the second sub-board 34 close to the first horizontal plate 10, and the second connection end 32 is an end of the first sub-board 33 close to the second horizontal plate 20. In the first direction X, the second sub-panel 34 of the first side panel 30 and the second sub-panel 34 of the second side panel 30 are connected to a first transverse panel 10, and the first sub-panel 33 of the second side panel 30 and the first sub-panel 33 of the third side panel 30 are connected to a second transverse panel 20.

Further, the number of the first transverse plates 10 is plural, the number of the second transverse plates 20 is plural, the number of the first cavities 40 is plural, the number of the second cavities 50 is plural, and one second cavity 50 is arranged between every two adjacent first cavities 40 along the first direction X.

A second transverse plate 20 is arranged between every two adjacent first transverse plates 10, one side plate 30 is shared between the adjacent first transverse plates 10 and the adjacent second transverse plates 20, the first transverse plates 10 are fixedly connected between the first connecting end portions 31 of the two adjacent side plates 30, and the second transverse plates 20 are fixedly connected between the second connecting end portions 32 of the two adjacent side plates 30, so that the plurality of battery units 301 can be integrated into the battery pack 1000 with high energy density through one integrated cold plate 100.

Referring to fig. 6, in another possible embodiment, the first cross plate 10 is fixedly connected between the second connecting end portions 32 of the two side plates 30, and the second cross plate 20 is fixedly connected between the second connecting end portions 32 of the two side plates 30. Because the first flow channel 11 and the second flow channel 21 are not communicated with each other, when a heat exchange medium is input into the integrated cold plate 100, the heat exchange medium can be respectively input into the first flow channel 11 and the second flow channel 21, so that the temperature difference between the battery unit 301 in the first cavity 40 and the battery unit 301 in the second cavity 50 is small in the heat exchange process, and the phenomenon that the temperature of the local battery unit 301 is too high is avoided.

Referring to fig. 7, 8 and 9, further, the first horizontal plate 10 includes a first end 12 and a second end 13 opposite to each other along the third direction Z. The first flow channel 11 includes a first liquid inlet flow channel 111 and a first liquid outlet flow channel 112 extending along the third direction Z, and the first liquid inlet flow channel 111 and the first liquid outlet flow channel 112 are arranged along the first direction X. The first inlet channel 111 has a first inlet 1111 formed at the first end 12, and the first inlet 1111 communicates with the first inlet channel 111. A first liquid outlet 1121 is formed in the first liquid outlet channel 112 at the first end 12, the first liquid outlet 1121 is communicated with the first liquid outlet channel 112, the opening size of the first liquid inlet 1111 is larger than that of the first liquid outlet 1121, and the first liquid inlet channel 111 is communicated with the first liquid outlet channel 112 at the second end 13.

As shown in fig. 9, in a possible embodiment, the first horizontal plate 10 has an open end at the first end 12, the first horizontal plate 10 is disposed at the second end 13 in a sealing manner, the interior of the first horizontal plate 10 is hollow, two partition plates extending along the third direction Z can be disposed in the first horizontal plate 10, and the distance of the partition plates extending along the third direction Z is less than the length of the first horizontal plate 10 extending along the third direction Z, so that the first liquid inlet flow passage 111 is communicated with the first liquid outlet flow passage 112 at the second end 13.

The first liquid inlet flow channel 111 and the first liquid outlet flow channel 112 are communicated at the second end 13, so that a heat exchange medium can be input into the first liquid inlet flow channel 111 through the first liquid inlet 1111, the heat exchange medium in the first liquid inlet flow channel 111 enters the first liquid outlet flow channel 112 at the second end 13, and the heat exchange medium flowing through the first liquid outlet flow channel 112 can exchange heat with the battery unit 301 in the first cavity 40 in the output process and is output through the first liquid outlet 1121. The number of the first liquid inlet flow channels 111 may be one, and the number of the first liquid outlet flow channels 112 may be one.

Further, the first liquid outlet flow channel 112 may include a first sub liquid outlet flow channel 1122 and a second sub liquid outlet flow channel 1123 extending along the third direction Z, the first sub liquid outlet flow channel 1122 and the second sub liquid outlet flow channel 1123 are located at two opposite sides of the first liquid inlet flow channel 111 along the first direction X, and the first liquid inlet flow channel 111 is communicated with the first sub liquid outlet flow channel 1122 and the second sub liquid outlet flow channel 1123 at the second end 13, that is, the heat exchange medium can enter the first liquid inlet flow channel 111 from the first liquid inlet 1111, flow out from the first liquid outlet 1121 communicating with the first sub liquid outlet flow channel 1122 after passing through the first liquid outlet flow channel 1122, and flow out from the first liquid outlet 1121 communicating with the second liquid outlet flow channel 1123 after passing through the second liquid outlet flow channel 1123. The first sub liquid outlet flow channel 1122 and the second sub liquid outlet flow channel 1123 are provided with a first liquid outlet 1121 at the first end 12. In this way, the heat exchange medium is output from the first and second sub outlet flow channels 1122 and 1123 at both sides (the flow path of the heat exchange medium is shown by the dotted arrows in fig. 9), so that the temperature of the battery unit 301 in the first chamber 40 is more equalized.

It can be understood that the extending direction of the first liquid inlet channel 111 and the extending direction of the first liquid outlet channel 112 are not limited in the present application, the positions of the first liquid inlet 1111 and the first liquid outlet 1121 are not limited in the present application, the first liquid inlet channel 111 is communicated with the first liquid outlet channel 112, the first liquid inlet 1111 is communicated with the first liquid inlet channel 111, the first liquid outlet channel 1121 is communicated with the first liquid outlet channel 112, and a heat exchange medium enters the first liquid inlet channel 111 from the first liquid inlet 1111 and flows out of the first liquid outlet channel 112 from the first liquid outlet channel 1121.

In a possible embodiment, as shown in fig. 10, the first outlet flow passage 112 may further include two first outlet flow sub-passages 1122 and one second outlet flow sub-passage 1123. The first inlet channel 111 may include a first sub-inlet channel 1112 and a second sub-inlet channel 1113. The first sub liquid inlet channel 1112 and the second sub liquid inlet channel 1113 are both provided with a first liquid inlet 1111 at the first end 12, and the two first sub liquid outlet channels 1122 and the second sub liquid outlet channel 1123 are both provided with a first liquid outlet 1121 at the first end 12. At the second end 13, the first sub liquid inlet channel 1112 and the second sub liquid outlet channel 1123, and one of the first sub liquid outlet channels 1122 are connected, and the first sub liquid outlet channel 1122 and the second sub liquid outlet channel 1123 are respectively located on two sides of the first sub liquid inlet channel 1112 along the first direction X. Thus, when heat exchange medium is input into the first sub liquid inlet channel 1112, at the second end 13, the heat exchange medium in the first sub liquid inlet channel 1112 is output from the first sub liquid outlet channel 1122 and the second sub liquid outlet channel 1123 on both sides, respectively. Similarly, at the second end 13, the second sub liquid inlet channel 1113 is connected to another first sub liquid outlet channel 1122, so that when the heat exchange medium is input into the second sub liquid inlet channel 1113, the heat exchange medium in the second sub liquid inlet channel 1113 is output from the first sub liquid outlet channel 1122 at the second end 13. The first sub liquid inlet flow channel 1112 and the second sub liquid inlet flow channel 1113 both input heat exchange medium to exchange heat for the battery unit 301 in the first cavity 40, and the heat exchange efficiency of the first flow channel 11 to the battery unit 301 can be effectively improved.

Referring to fig. 7, 8 and 11, similarly, the second horizontal plate 20 includes a third end 22 and a fourth end 23 oppositely disposed along the third direction Z. The second flow path 21 includes a second liquid inlet flow path 211 and a second liquid outlet flow path 212 extending along the third direction Z, and the second liquid inlet flow path 211 and the second liquid outlet flow path 212 are arranged along the first direction X. The second inlet channel 211 has a second inlet 2111 at the third end 22, and the second inlet 2111 is communicated with the second inlet channel 211. The second liquid outlet passage 212 is formed with a second liquid outlet 2121 at the third end 22, the second liquid outlet 2121 is communicated with the second liquid outlet passage 212, and the second liquid inlet passage 211 is communicated with the second liquid outlet passage 212 at the fourth end 23.

It can be understood that the extending direction of the second liquid inlet flow channel 211 and the extending direction of the second liquid outlet flow channel 212 are not limited in the present application, the positions of the second liquid inlet 2111 and the second liquid outlet 2121 are not limited in the present application, the second liquid inlet flow channel 211 is communicated with the second liquid outlet flow channel 212, the second liquid inlet 2111 is communicated with the second liquid inlet flow channel 211, the second liquid outlet 2121 is communicated with the second liquid outlet flow channel 212, and the heat exchange medium enters the second liquid inlet flow channel 211 from the second liquid inlet 2111, passes through the second liquid outlet flow channel 212, and then flows out from the second liquid outlet 2121.

Similarly, as shown in fig. 11, in a possible embodiment, the second horizontal plate 20 has an open end at the third end 22, the second horizontal plate 10 is disposed in a sealed manner at the fourth end 23, the inside of the second horizontal plate 20 is hollow, two partition plates extending along the third direction Z can be disposed in the second horizontal plate 20, and the distance of the partition plates extending along the third direction Z is less than the length of the second horizontal plate 20 extending along the third direction Z, so that the second inlet flow passage 211 is communicated with the second outlet flow passage 212 at the fourth end 23.

The second liquid inlet flow channel 211 and the second liquid outlet flow channel 212 are communicated at the fourth end 23, so that a heat exchange medium can enter the second liquid inlet flow channel 211 by inputting the heat exchange medium to the second liquid inlet 2111, the heat exchange medium in the second liquid inlet flow channel 211 enters the second liquid outlet flow channel 212 at the fourth end 23, and the heat exchange medium flowing through the second liquid outlet flow channel 212 can exchange heat with the battery unit 301 in the second cavity 50 in the output process, and then is output through the second liquid outlet 2121. The number of the second liquid inlet flow passage 211 may be one, and the number of the second liquid outlet flow passage 212 may be one.

Further, the second liquid outlet flow passage 212 may include a third sub liquid outlet flow passage 2122 and a fourth sub liquid outlet flow passage 2123 extending along the third direction Z, the third sub liquid outlet flow passage 2122 and the fourth sub liquid outlet flow passage 2123 are located at two opposite sides of the second liquid inlet flow passage 211 along the first direction X, the second liquid inlet flow passage 211 is communicated with the third sub liquid outlet flow passage 2122 and the fourth sub liquid outlet flow passage 2123 at the fourth end 23, that is, the heat exchange medium can enter the second liquid inlet flow passage 211 from the second liquid inlet 2111, flow out from the second liquid outlet 2121 communicated with the third sub liquid outlet flow passage 2122 after passing through the third sub liquid outlet flow passage 2122, and flow out from the second liquid outlet 2121 communicated with the fourth sub liquid outlet flow passage 2123 after passing through the fourth sub liquid outlet flow passage 2123. The third sub liquid outlet flow passage 2122 and the fourth sub liquid outlet flow passage 2123 are respectively provided with a second liquid outlet 2121 at the third end 22. In this way, the heat exchange medium is output from the third and fourth sub liquid outlet flow channels 2122 and 2123 at two sides (the flow path of the heat exchange medium is shown by the dotted arrow in fig. 11), so that the temperature of the battery units 301 in the second cavity 50 can be more equalized.

Referring to fig. 10, in a possible embodiment, the second liquid outlet flow passage 212 may further include two third liquid outlet flow passages 2122 and one fourth liquid outlet flow passage 2123. The second inlet channel 211 may include a third sub inlet channel 2112 and a fourth sub inlet channel 2113. The third sub liquid inlet channel 2112 and the second sub liquid inlet channel 1113 are respectively provided with a second liquid inlet 2111 communicated with each other at the third end 22, and the two third sub liquid outlet channels 2122 and the fourth sub liquid outlet channel 2123 are respectively provided with a second liquid outlet 2121 communicated with each other at the third end 22. At the fourth end 23, the third sub liquid inlet runner 2112, the fourth sub liquid outlet runner 2123 and one of the third sub liquid outlet runners 2122 are communicated, and the third sub liquid outlet runner 2122 and the fourth sub liquid outlet runner 2123 are respectively located on two sides of the third sub liquid inlet runner 2112 along the first direction X. Thus, when the heat exchange medium is input into the third sub liquid inlet channel 2112, at the fourth end 23, the heat exchange medium in the third sub liquid inlet channel 2112 is output from the third sub liquid outlet channel 2122 and the fourth sub liquid outlet channel 2123 on the two sides, respectively. Similarly, at the fourth end 23, the fourth sub liquid inlet channel 2113 is connected to another third sub liquid outlet channel 2122, so that when the heat exchange medium is inputted into the fourth sub liquid inlet channel 2113, the heat exchange medium in the fourth sub liquid inlet channel 2113 is outputted from the third sub liquid outlet channel 2122 at the fourth end 23. The heat exchange medium is input into both the third sub liquid inlet flow channel 2112 and the fourth sub liquid inlet flow channel 2113 to exchange heat with the battery unit 301 in the second cavity 50, so that the heat exchange efficiency of the second flow channel 21 to the battery unit 301 can be effectively improved.

Referring to fig. 7 and 8, the integrated cold plate 100 further includes a first manifold 60 and a second manifold 70 extending along the first direction X. The first manifold 60 is disposed at the first end 12 of the first cross plate 10. The second manifold 70 is disposed at the third end 22 of the second cross plate 20. First collecting pipe 60 includes first feed liquor pipe 61 and first drain pipe 62 that set up side by side along second direction Y, and first feed liquor pipe 61 and first drain pipe 62 all extend along first direction X, and first feed liquor pipe 61 communicates with first inlet 1111 of first runner 11, and first drain pipe 62 communicates with first outlet 1121 of first runner 11. The second collecting pipe 70 includes a second liquid inlet pipe 71 and a second liquid outlet pipe 72 that are arranged in parallel along the second direction Y, both the second liquid inlet pipe 71 and the second liquid outlet pipe 72 extend along the first direction X, the second liquid inlet pipe 71 is communicated with a second liquid inlet 2111 of the second flow channel 21, and the second liquid outlet pipe 72 is communicated with a second liquid outlet 2121 of the second flow channel 21.

Wherein, the heat transfer medium in the first liquid inlet pipe 61 can not be directly transmitted from the first liquid inlet pipe 61 to the first liquid outlet pipe 62, and the heat transfer medium in the second liquid inlet pipe 71 can not be directly transmitted from the second liquid inlet pipe 71 to the second liquid outlet pipe 72. When the heat exchange medium is introduced into the integrated cold plate 100, the heat exchange medium is introduced into the first liquid inlet pipe 61 and the second liquid inlet pipe 71, respectively. The heat exchange medium in the first liquid inlet pipe 61 is input into the first liquid inlet flow channel 111 from the first liquid inlet 1111 to exchange heat with the battery unit 301 in the first cavity 40, and is output from the first liquid outlet flow channel 112 at the second end 13, which is communicated with the first liquid inlet flow channel 111, and is output to the first liquid outlet pipe 62 through the first liquid outlet 1121, and is finally output to the outside of the integrated cold plate 100 from the first liquid outlet pipe 62.

The heat exchange medium in the second liquid inlet pipe 71 is input into the second liquid inlet flow channel 211 from the second liquid inlet 2111 to exchange heat with the battery unit 301 in the second chamber 50, and is output from the second liquid outlet flow channel 212, which is connected to the second liquid inlet flow channel 211 at the fourth end 23, and is output to the second liquid outlet pipe 72 through the second liquid outlet 2121, and is finally output to the outside of the integrated cold plate 100 from the second liquid outlet pipe 72.

Referring to fig. 10, further, the integrated cold plate 100 further includes a thermal conductive adhesive 80, the thermal conductive adhesive 80 is disposed on the surface of the first horizontal plate 10 located in the first cavity 40, and the thermal conductive adhesive 80 is disposed on the surface of the second horizontal plate 20 located in the second cavity 50. On one hand, when the battery cells 301 are respectively placed in the first cavity 40 and the second cavity 50, the battery cells 301 in the first cavity 40 can be fixed by the heat-conducting glue 80 on the first horizontal plate 10, and the battery cells 301 in the second cavity 50 can be fixed by the heat-conducting glue 80 on the second horizontal plate 20; on the other hand, the heat conducting glue 80 on the first horizontal plate 10 can more uniformly distribute the heat emitted from the battery unit 301 in the first cavity 40 to the surface of the first horizontal plate 10, so that the heat is taken away by the heat exchange medium in the first flow channel 11, and the heat conducting glue 80 on the second horizontal plate 20 can more uniformly distribute the heat emitted from the battery unit 301 in the second cavity 50 to the surface of the second horizontal plate 20, so that the heat is taken away by the heat exchange medium in the second flow channel 21.

Of course, the heat conducting glue 80 may be further applied to the surfaces of the two side plates 30 in the first cavity 40 to further fix the battery cells 301 in the first cavity 40, and the heat conducting glue 80 may be applied to the surfaces of the two side plates 30 in the second cavity 50 to further fix the battery cells 301 in the second cavity 50, so as to ensure the stability of the battery cells 301 mounted on the integrated cold plate 100.

It should be noted that the heat exchange medium may be a liquid medium (such as water, a mixture of water and alcohol), or may be a gas medium, and is not limited in the embodiments of the present application.

The heat exchange medium may cool or preheat the battery cell 301. When the battery cell 301 needs to be cooled, a heat exchange medium having a relatively low temperature is introduced into the first flow channel 11 and the second flow channel 21 so that the battery cell 301 has an appropriate temperature. When the battery unit 301 needs to be preheated, a heat exchange medium with a relatively high temperature is introduced into the first flow channel 11 and the second flow channel 21 to bring the battery unit 301 to an appropriate temperature.

In other embodiments, the integrated cold plate 100 may include a plurality of integrated cold plates 100, each integrated cold plate 100 has a plurality of battery units 301 disposed therein, the plurality of integrated cold plates 100 are arranged in the receiving space 201 along the first direction X to form the battery pack 1000 with higher energy density, and the plurality of integrated cold plates 100 are arranged in the receiving space 201 along the first direction X, so that the temperature difference between the battery units 301 in each integrated cold plate 100 is smaller, and the thermal management temperature in the battery pack 1000 is made to have good consistency.

The foregoing is a partial description of the present application, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations are also regarded as the protection scope of the present application.

Claims (12)

1. The utility model provides an integrated cold drawing, its characterized in that, integrated cold drawing includes a plurality of cold drawing units, and is a plurality of the cold drawing unit is arranged along the first direction, the cold drawing unit includes diaphragm and two curb plates, two the curb plate is followed the first direction is arranged, the curb plate extends along the second direction, the diaphragm is formed with the cooling runner that extends along the third direction, the first direction the second direction the third direction is inequality each other, adjacent two be connected with one between the cold drawing unit the curb plate, diaphragm and two the curb plate is formed with the open end and the cavity that are linked together jointly, the open end does the cavity is kept away from the open end of diaphragm one side, the open end with the diaphragm is relative.

2. The integrated cold plate of claim 1, wherein the cross plates comprise a first cross plate and a second cross plate, the cooling channels comprise a first channel and a second channel, the open end comprises a first opening and a second opening, the chamber comprises a first cavity and a second cavity, the first channel extending in the third direction is formed in the first cross plate, the second channel extending in the third direction is formed in the second cross plate, one side plate is connected between the first cross plate and the second cross plate, the first cross plate and the two side plates jointly form the first opening and the first cavity which are communicated, the first opening is an open end of the first cavity on a side away from the first cross plate, the first opening is opposite to the first cross plate, the second cross plate and the two side plates jointly form the second opening and the second cavity which are communicated, the second opening is an open end of the second cavity on a side away from the second cross plate, the second opening is opposite to the second cross plate, and the first cavity and the second cavity are arranged in parallel in the first direction.

3. The integrated cold plate as claimed in claim 2, wherein the side plates comprise a first connecting end and a second connecting end opposite to each other along the second direction, the first cross plate is fixedly connected between the first connecting ends of the two side plates, and the second cross plate is fixedly connected between the second connecting ends of the two side plates.

4. The integrated cold plate of claim 2, wherein the side plate comprises a first sub-plate and a second sub-plate that are sequentially connected along the second direction, the first sub-plate and the second sub-plate both extend along the second direction, two ends of the first transverse plate that are oppositely disposed along the first direction are respectively connected to one of the second sub-plates, and two ends of the second transverse plate that are oppositely disposed along the first direction are respectively connected to one of the first sub-plates.

5. The integrated cold plate according to any one of claims 2 to 4, wherein the first flow channel comprises a first liquid inlet flow channel and a first liquid outlet flow channel which are communicated with each other, a first liquid inlet communicated with the first liquid inlet flow channel is arranged on the first cross plate, a first liquid outlet communicated with the first liquid outlet flow channel is arranged on the first cross plate, and a heat exchange medium can enter the first liquid inlet flow channel from the first liquid inlet and then flow out from the first liquid outlet after passing through the first liquid outlet flow channel.

6. The integrated cold plate as claimed in claim 5, wherein the first liquid outlet flow path comprises a first sub liquid outlet flow path and a second sub liquid outlet flow path extending along the third direction, the first sub liquid outlet flow path and the second sub liquid outlet flow path are located at two opposite sides of the first liquid inlet flow path along the first direction, the heat exchange medium can enter the first liquid inlet flow path from the first liquid inlet, flow out from the first liquid outlet communicated with the first sub liquid outlet flow path after passing through the first sub liquid outlet flow path, and flow out from the first liquid outlet communicated with the second sub liquid outlet flow path after passing through the second sub liquid outlet flow path.

7. The integrated cold plate according to any one of claims 2 to 4, wherein the second flow channel comprises a second liquid inlet flow channel and a second liquid outlet flow channel which are communicated with each other, a second liquid inlet communicated with the second liquid inlet flow channel is arranged on the second transverse plate, a second liquid outlet communicated with the second liquid outlet flow channel is arranged on the second transverse plate, and the heat exchange medium can enter the second liquid inlet flow channel from the second liquid inlet and then flow out from the second liquid outlet after passing through the second liquid outlet flow channel.

8. The integrated cold plate as recited in claim 7, wherein the second liquid outlet channel comprises a third sub liquid outlet channel and a fourth sub liquid outlet channel extending along the third direction, the third sub liquid outlet channel and the fourth sub liquid outlet channel are located on opposite sides of the second liquid inlet channel along the first direction, the heat exchange medium can enter the second liquid inlet channel from the second liquid inlet, flow out of the second liquid outlet communicating with the third sub liquid outlet channel after passing through the third sub liquid outlet channel, and flow out of the second liquid outlet communicating with the fourth sub liquid outlet channel after passing through the fourth sub liquid outlet channel.

9. An integrated cold plate according to any one of claims 2 to 4, wherein the first cross plate is provided with a first liquid inlet and a first liquid outlet communicating with the first flow channel, the second cross plate is provided with a second liquid inlet and a second liquid outlet communicating with the second flow channel, the integrated cold plate further comprises a first manifold and a second manifold extending in the first direction, the first manifold is provided at an end of the first cross plate where the first liquid inlet is located, the second manifold is provided at an end of the second cross plate where the second liquid inlet is located, the first manifold comprises a first liquid inlet pipe and a first liquid outlet pipe arranged side by side in the second direction, the first liquid inlet pipe and the first liquid outlet pipe both extend in the first direction, the first liquid inlet pipe is communicated with the first liquid inlet, and the first liquid outlet pipe is communicated with the first liquid outlet; the second collecting pipe comprises a second liquid inlet pipe and a second liquid outlet pipe which are arranged in parallel along the second direction, the second liquid inlet pipe and the second liquid outlet pipe both extend along the first direction, the second liquid inlet pipe is communicated with the second liquid inlet, and the second liquid outlet pipe is communicated with the second liquid outlet.

10. The integrated cold plate of any one of claims 2 to 4, wherein the integrated cold plate comprises a thermally conductive glue disposed on a surface of the first transverse plate within the first cavity, and wherein the thermally conductive glue is disposed on a surface of the second transverse plate within the second cavity.

11. A battery pack, comprising:

a plurality of battery packs; and

the integrated cold plate of any one of claims 1 to 10, the number of battery packs being no greater than the number of cold plate units, the battery packs being mounted within the chamber, the battery packs comprising at least one cell.

12. A vehicle, characterized by comprising:

a vehicle body; and

the battery pack of claim 11, mounted to the vehicle body.

Images