CN217280947U

CN217280947U - Battery module cooling device and battery module

Info

Publication number: CN217280947U
Application number: CN202220308845.7U
Authority: CN
Inventors: 曲凡多
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-08-23
Anticipated expiration: 2032-02-15

Abstract

The utility model provides a battery module cooling device and a battery module, the utility model discloses a battery module cooling device, which comprises a first plate body, a second plate body and an end plate, wherein the first plate body and the second plate body are respectively arranged at the upper side and the lower side of a cell group of the battery module; the end plate is positioned at one end of the electric core group and is connected with the first plate body and the second plate body; be formed with cooling channel in the cooling device, cooling channel has import and the export that is located on the first plate body, and cooling channel is used for the guide by the coolant liquid that the import got into, can flow through behind the first plate body by the export outflow, and can flow through in proper order behind end plate, second plate body, the end plate by the export outflow. The utility model discloses a battery module cooling device can improve the cooling effect to the electric core group, and simultaneously, structural arrangement is reasonable, the practicality is strong.

Description

Battery module cooling device and battery module

Technical Field

The utility model relates to a power battery technical field, in particular to battery module cooling device, simultaneously, the utility model discloses still relate to a battery module with this battery module cooling device.

Background

The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel but adopts a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. New energy automobile includes: hybrid Electric Vehicles (HEV), electric only vehicles (BEV), fuel cell vehicles (FCEV), hydrogen engine vehicles as well as gas vehicles, alcohol ether vehicles, and the like.

The battery pack is mostly used in the electric automobile to be used as a power source for providing power, and meanwhile, the safety performance of the battery module determines the safety performance of the battery pack, namely determines the safety performance and quality of the electric automobile. Because of the active chemical property of the lithium ion battery, once thermal runaway occurs, the lithium ion battery can rapidly stretch to an adjacent battery cell, and therefore, a cooling system is generally arranged in the battery pack to cool the battery module.

However, the water cooling device for the battery module in the prior art has the disadvantages that the structural design is unreasonable, the cooling effect is poor, the arrangement of the cooling liquid circulation pipeline is disordered, the cooling requirement and the overall structure arrangement requirement of the battery module are difficult to meet, and the quality of the battery module is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a battery module cooling device, which has a better cooling effect.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a battery module cooling device comprises a first plate body, a second plate body and an end plate; the first plate body and the second plate body are used for being respectively arranged at the upper side and the lower side of the electric core group of the battery module; the end plate is positioned at one end of the electric core group and is connected with the first plate body and the second plate body; cooling channel has and is located import and export on the first plate body in the cooling device, just cooling channel is used for the guide by the coolant liquid that the import got into can flow through behind the first plate body by the export flows out, and can flow through in proper order the end plate the second plate body by behind the end plate the export flows out.

Furthermore, cooling channel is including setting up in first cooling channel on the first plate body locates second cooling channel on the second plate body, and locate water inlet intercommunication passageway and play water intercommunication passageway on the end plate, second cooling channel's both ends via respectively water inlet intercommunication passageway with play water intercommunication passageway with first cooling channel is parallelly connected.

Further, still including locating the curb plate on the left side and/or the right side of electric core group, be formed with third cooling channel in the curb plate, the both ends of third cooling channel communicate respectively the intercommunication passageway of intaking with go out water intercommunication passageway.

Furthermore, a first transverse channel and a second transverse channel are arranged on the end plate; the first transverse channel is communicated with the liquid inlet of the third cooling channel and the water inlet communicating channel, and the second transverse channel is communicated with the liquid outlet of the third cooling channel and the water outlet communicating channel.

Further, the third cooling channel is U-shaped.

Furthermore, a plurality of turbulence ribs which are sequentially arranged at intervals along the length direction of the turbulence ribs are arranged on the inner wall of at least one of the first cooling channel, the second cooling channel and the third cooling channel.

Further, the first cooling channel comprises a first main channel and a second main channel which are long-strip-shaped, and a plurality of sub-channels which are communicated with the first main channel and the second main channel; a plurality of said subchannels are arranged in parallel.

Further, the first main channel is communicated with the inlet and the water inlet communication channel; the second main channel is communicated with the outlet and the water outlet communication channel.

Furthermore, at least one of the first plate body, the second plate body, the end plate and the side plate is provided with a reinforcing rib which protrudes outwards from the first plate body to one side.

Compared with the prior art, the utility model discloses following advantage has:

battery module cooling device, through cooling channel's setting, both can construct the coolant liquid and flow through the import in proper order, the first flow path of first plate body and export, can construct the coolant liquid again and flow through the import in proper order, the end plate, the second plate body, the second flow path of end plate and export, so, just can use the same import and export through two flow paths with the coolant liquid, and then improve the whole cooling effect of arranging the effect and to the electric core group of device to improve this battery module cooling device's result of use.

Another object of the present invention is to provide a battery module, which includes the above battery module cooling device.

The utility model discloses a battery module can improve the cooling effect to the electric core group through setting up foretell battery module cooling device, and then can satisfy the requirement of battery charge-discharge in-process to intensification or cooling sooner to can improve the quality of this battery module.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a battery module cooling device according to a first embodiment of the present invention during assembly;

fig. 2 is a schematic view of a part of a structure of a cooling device for a battery module according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of the first plate, the end plate and the battery cell assembly according to the first embodiment of the present invention;

fig. 4 is a schematic structural view of a side plate according to a first embodiment of the present invention;

fig. 5 is a schematic structural diagram of an end plate according to a first embodiment of the present invention;

fig. 6 is a schematic view of an internal structure of an end plate according to a first embodiment of the present invention;

fig. 7 is a schematic view of a partial structure of the first plate and the second plate according to the first embodiment of the present invention.

Description of reference numerals:

1. a first plate body; 101. an inlet; 102. an outlet; 103. a first cooling channel; 1031. a first main channel; 1032. a second main channel; 1033. dividing channels; 105. a first connection port; 106. a second connection port;

2. a second plate body; 201. a third connection port; 202. a fourth connection port;

3. an end plate; 301. a water inlet communicating channel; 302. a water outlet communication channel; 303. a first transverse channel; 304. a second transverse channel;

4. a side plate; 4a, a left side plate; 4b, a right side plate; 401. a third cooling channel; 4011. a liquid inlet; 4012. a liquid outlet;

5. a turbulence rib; 6. the electric core group; 7. and (5) reinforcing ribs.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", "front", "rear", "left", "right", "top", "bottom" and the like appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same order, but are to be construed as referring to the same order.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The utility model relates to a battery module cooling device, overall structure is last, and it includes first plate body 1, second plate body 2 and end plate 3. Wherein, the first plate body 1 and the second plate body 2 are used for being respectively arranged at the upper side and the lower side of the electric core group 6 of the battery module. The end plate 3 is located at one end of the electric core group 6 and is connected with the first plate body 1 and the second plate body 2.

A cooling channel is formed in the cooling device, the cooling channel has an inlet 101 and an outlet 102 located on the first plate body 1, and the cooling channel is used for guiding the cooling liquid entering from the inlet 101, and the cooling liquid can flow out from the outlet 102 after flowing through the first plate body 1, and can flow out from the outlet 102 after flowing through the end plate 3, the second plate body 2 and the end plate 3 in sequence.

It should be noted that the battery pack 6 in the present embodiment includes at least one battery cell, and the battery cell generally refers to a battery cell product commonly used in the prior art.

Based on the above general description, in the present embodiment, as a preferred implementation manner, as shown in fig. 1, fig. 3, fig. 5, fig. 6 and fig. 7, the cooling channel of the present embodiment includes a first cooling channel 103 disposed on the first plate body 1, a second cooling channel 104 disposed on the second plate body 2, and a water inlet communication channel 301 and a water outlet communication channel 302 disposed on the end plate 3, and two ends of the second cooling channel 104 are connected in parallel with the first cooling channel 103 via the water inlet communication channel 301 and the water outlet communication channel 302, respectively.

Preferably, the cooling device for a battery module in the present embodiment further includes a side plate 4 disposed on the left side and/or the right side of the electric core assembly 6, wherein a third cooling channel 401 is formed in the side plate 4, and two ends of the third cooling channel 401 are respectively communicated with the water inlet communication channel 301 and the water outlet communication channel 302.

In the specific structural design of the battery module cooling device, in order to achieve a good cooling effect, the side plates 4 are disposed on both left and right sides thereof, and for convenience of description, the side plates 4 on both left and right sides are referred to as a left side plate 4a and a right side plate 4b, respectively, as shown in fig. 4.

In a specific implementation, the end plate 3 is provided with a first transverse channel 303 and a second transverse channel 304. The first transverse passage 303 communicates with the liquid inlet 4011 of the third cooling passage 401 and the water inlet communication passage 301, and the second transverse passage 304 communicates with the liquid outlet 4012 of the third cooling passage 401 and the water outlet communication passage 302.

As also shown in fig. 4, in the specific structural design, the third cooling passage 401 of the present embodiment has a U shape, and the opening of the U shape is disposed toward the end plate 3 side. Meanwhile, preferably, a plurality of turbulence ribs 5 sequentially arranged at intervals along the length direction of the inner wall of at least one of the first cooling channel 103, the second cooling channel 104 and the third cooling channel 401 in this embodiment are provided.

In practical application, in order to improve the utilization rate of the cooling liquid, a plurality of turbulence ribs 5 are arranged on the first cooling channel 103, the second cooling channel and the third cooling channel 401. Here, the amount of the spoiler ribs 5 is set and the arrangement is formed, and both the amount of the spoiler ribs 5 can be set and adjusted accordingly according to actual spoiler requirements, as shown in fig. 1 and fig. 2, the spoiler ribs 5 on the left side plate 4a are arranged along the third cooling channel 401, and the arrangement form of the spoiler ribs 5 on the right side plate 4b is the same as that of the spoiler ribs 5 on the left side plate 4 a.

In the present embodiment, as shown in fig. 7, the first cooling passage 103 includes the first main passage 1031 and the second main passage 1032 which are elongated, and a plurality of sub-passages 1033 which communicate the plurality of first main passages 1031 and the second main passage 1032, and the plurality of sub-passages 1033 are arranged in parallel.

In specific implementation, the first main passage 1031 connects the inlet 101 and the water inlet communication passage 301, and the second main passage 1032 connects the outlet 102 and the water outlet communication passage 302. The first cooling channel 103 described above is only partly illustrated in fig. 7, wherein both the first main channel 1031 and the second main channel 103 are arc-shaped and arranged symmetrically with respect to the centre plane of the second plate body 2. For a better cooling effect, a plurality of sub-channels 1033 are connected between the first main channel 1031 and the second main channel 103, and as a preferred embodiment, a plurality of sub-channels are arranged in parallel, which is beneficial for a better cooling effect.

As shown in fig. 2 and 7, the second main channel 1032 has one end connected to the inlet 101 and the other end connected to the first connection port 105, the first main channel 1031 has one end connected to the second connection port 106 and the other end connected to the outlet 102, and the first connection port 105 and the second connection port 106 are disposed on the end plate 3.

Also as another preferred embodiment, at least one of the first plate body 1, the second plate body 2, the end plate 3 and the side plate 4 of the present embodiment is formed with a reinforcing rib 7 formed by protruding outward from itself to one side. In specific implementation, the first plate body 1, the second plate body 2, the end plate 3, the left side plate 4a and the right side plate 4b may be provided with reinforcing ribs 7 to improve the structural strength of the battery module cooling device, wherein fig. 7 simply illustrates the structural schematic of the reinforcing ribs 7 on the first plate body 1.

Of course, the number of the reinforcing ribs 7 on the first plate body 1, the second plate body 2, the end plate 3, the left side plate 4a and the right side plate 4b can be set and arranged according to actual reinforcing requirements.

In this embodiment, in practical use, the cooling liquid enters from the inlet 101, and a part of the cooling liquid flows to the outlet 102 through each sub-channel 1033, so that the second plate body 1 can cool the electric core assembly 6; the other part of the cooling liquid enters through the inlet 101, then upwards passes through the first connecting port 105, flows through the water inlet communicating channel 301 and enters into the second plate body 2, the cooling channel on the second plate body 2 can be consistent with the shape of the cooling channel on the first plate body 2, the cooling liquid flows to the outlet 103 through the sub-channel 1033 on the second plate body 2, and flows to the outlet 102 on the first plate body 1 through the water outlet communicating channel 302, so that the second plate body 2 and the end plate 3 can cool the electric core pack 6.

The coolant entering the water inlet communication channel 301 can flow through the third cooling channels 401 on the side plates 4 on two sides through the first transverse channels 303 on two sides of the coolant, and finally flows to the end plate water outlet communication channel 302 through the second transverse channel 304 on the corresponding side, and then flows out of the first plate body 102, so that the side plates 4 on two sides can cool the electric core pack 6. It should be understood here that it is of course also possible to provide one side plate 4, but that the cooling effect is relatively poor compared to a construction in which side plates 4 are provided on both sides.

Finally, it should be noted that, sealing structures are provided at the connection positions of the cooling channels of the first plate body 1 and the end plate 3, the connection positions of the cooling channels of the second plate body 2 and the end plate 3, and the connection positions of the cooling channels of the end plate 3 and the side plate 4, and the specific sealing manner can refer to the prior art and will not be described in detail herein.

The battery module cooling device of this embodiment, setting through cooling channel, both can construct the coolant liquid and flow through import 101 in proper order, the first flow path of first plate body 1 and export 102, can construct the coolant liquid again and flow through import 101 in proper order, end plate 3, the second plate body 2, the second flow path of end plate 3 and export 102, and then improved the cooling effect to electric core group 6, and simultaneously, two flow paths are through using the same import 101 and export 102, can also realize the rationalization that the device wholly arranged, thereby the whole result of use of this battery module cooling device has been improved.

Example two

The present invention relates to a battery module, which is provided with the battery module cooling device according to the first embodiment.

The battery module of this embodiment can improve the cooling effect to electric core group 6 through setting up the battery module cooling device of embodiment one, and then can satisfy the requirement to rising temperature or cooling more fast among the battery charge-discharge process to the quality of this battery module has been improved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a battery module cooling device which characterized in that:

comprises a first plate body (1), a second plate body (2) and an end plate (3);

the first plate body (1) and the second plate body (2) are respectively arranged at the upper side and the lower side of the battery core group (6) of the battery module;

the end plate (3) is positioned at one end of the electric core group (6) and is connected with the first plate body (1) and the second plate body (2);

be formed with cooling channel in the cooling device, cooling channel has import (101) and export (102) that are located on first plate body (1), just cooling channel be used for the guide by the coolant liquid that import (101) got into can flow through behind first plate body (1) by export (102) flow out, and can flow through in proper order end plate (3), second plate body (2) by behind end plate (3) export (102) flow out.

2. The battery module cooling apparatus according to claim 1, wherein:

the cooling passage is including setting up in first cooling passage (103) on the first plate body (1) is located second cooling passage (104) on the second plate body (2), and locate intake communicating channel (301) and play water communicating channel (302) on end plate (3), the both ends of second cooling passage (104) via respectively intake communicating channel (301) with go out water communicating channel (302) with first cooling passage (103) are parallelly connected.

3. The battery module cooling apparatus according to claim 2, wherein:

still including locating curb plate (4) on the left side and/or the right side of electric core group (6), be formed with third cooling channel (401) in curb plate (4), the both ends of third cooling channel (401) communicate respectively intake communicating channel (301) with go out water communicating channel (302).

4. The battery module cooling apparatus according to claim 3, wherein:

a first transverse channel (303) and a second transverse channel (304) are arranged on the end plate (3);

the first transverse channel (303) is communicated with the liquid inlet (4011) of the third cooling channel (401) and the water inlet communication channel (301), and the second transverse channel (304) is communicated with the liquid outlet (4012) of the third cooling channel (401) and the water outlet communication channel (302).

5. The battery module cooling apparatus according to claim 3, wherein:

the third cooling channel (401) is U-shaped.

6. The battery module cooling apparatus according to claim 3, wherein:

and a plurality of turbulence ribs (5) which are sequentially arranged at intervals along the length direction of the inner wall of at least one of the first cooling channel (103), the second cooling channel (104) and the third cooling channel (401) are arranged on the inner wall.

7. The battery module cooling apparatus according to claim 3, wherein:

the first cooling channel (103) includes elongated first and second main channels (1031, 1032) and a plurality of sub-channels (1033) that communicate the plurality of first and second main channels (1031, 1032);

a plurality of said subchannels (1033) are arranged in parallel.

8. The battery module cooling apparatus according to claim 7, wherein:

the first main passage (1031) communicates the inlet (101) and the water inlet communication passage (301);

the second main passage (1032) communicates the outlet (102) and the outlet communication passage (302).

9. The battery module cooling device according to any one of claims 3 to 8, wherein:

at least one of the first plate body (1), the second plate body (2), the end plate (3) and the side plate (4) is provided with a reinforcing rib (7) which is formed by protruding outwards towards one side.

10. A battery module, its characterized in that: comprising the battery module cooling device according to any one of claims 1 to 9.