CN215527804U - Battery module, battery package and vehicle - Google Patents
Battery module, battery package and vehicle Download PDFInfo
- Publication number
- CN215527804U CN215527804U CN202122102089.0U CN202122102089U CN215527804U CN 215527804 U CN215527804 U CN 215527804U CN 202122102089 U CN202122102089 U CN 202122102089U CN 215527804 U CN215527804 U CN 215527804U
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- Prior art keywords
- cooling plate
- battery
- cooling
- cell assembly
- battery module
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- 238000001816 cooling Methods 0.000 claims abstract description 106
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000000110 cooling liquid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 239000000178 monomer Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 8
- 230000002269 spontaneous effect Effects 0.000 abstract description 8
- 239000002826 coolant Substances 0.000 description 11
- 230000000903 blocking effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The present disclosure relates to a battery module, battery package and vehicle, the battery module includes: a battery cell assembly; and the cooling assembly comprises at least one cooling plate, the cooling plate is attached to the surface of the battery core assembly, a cooling liquid flow channel is arranged in the cooling plate, a liquid discharge hole communicated with the cooling liquid flow channel is formed in the cooling plate, and a thermosensitive plug cover is hermetically connected to the liquid discharge hole. Through above-mentioned technical scheme, this battery module, battery package and vehicle that disclose provide can solve battery thermal runaway and take place the technical problem of spontaneous combustion.
Description
Technical Field
The disclosure relates to the field of power batteries, in particular to a battery module, a battery pack and a vehicle.
Background
The power battery pack is an important component of an electric power system in the new energy automobile and directly provides power requirements for automobile running. When the power battery pack works, the battery core generates a large amount of heat.
In the existing power battery pack, the cooling efficiency of a cooling system is insufficient, so that the heat of a battery core cannot be timely dissipated and is easily gathered around the power battery, and the battery is caused to be out of control due to thermal runaway so as to generate spontaneous combustion.
SUMMERY OF THE UTILITY MODEL
The purpose of this disclosure is to provide a battery module, battery package and vehicle to solve the technical problem that battery thermal runaway takes place the spontaneous combustion.
In order to achieve the above object, the present disclosure provides a battery module including: a battery cell assembly; and the cooling assembly comprises at least one cooling plate, the cooling plate is attached to the surface of the battery core assembly, a cooling liquid flow channel is arranged in the cooling plate, a liquid discharge hole communicated with the cooling liquid flow channel is formed in the cooling plate, and a thermosensitive plug cover is hermetically connected to the liquid discharge hole.
Optionally, the side of the cooling plate facing the battery cell assembly is provided with the liquid discharge hole.
Optionally, the battery cell assembly includes a plurality of single battery cells, and the plurality of single battery cells are sequentially stacked along a length direction of the battery cell assembly; and the side surface of the cooling plate facing the single battery cell is provided with the liquid discharge hole.
Optionally, the cooling assembly includes at least two cooling plates, and adjacent cooling plates are arranged in series with each other, where at least one of two lateral end surfaces of the cell assembly, which are opposite to each other in the width direction, is provided with the cooling plate in an attached manner, and a bottom surface of the cell assembly is provided with the at least one cooling plate in an attached manner.
Optionally, the cooling assembly includes a first cooling plate, a second cooling plate, and a third cooling plate that are sequentially connected in series, the second cooling plate is attached to the bottom surface of the cell assembly, and the first cooling plate and the third cooling plate are respectively attached to two side end surfaces of the cell assembly that are opposite to each other in the width direction.
Optionally, the drain hole is arranged on the cooling plate attached to the side end surface; and/or the water inlet and the water outlet of the cooling plate are both arranged at the same end of the battery cell assembly along the length direction.
Optionally, a side surface of the cooling plate facing the battery cell assembly is provided with a heat conducting structural adhesive; and/or, adjacent be provided with the silica gel piece between the monomer electricity core, the silica gel piece with bond through the structural sealant between the monomer electricity core.
Optionally, the method further comprises: a box body having a top opening accommodating cavity, wherein the battery cell assembly and the cooling assembly are accommodated in the accommodating cavity through the top opening; and the cover body is buckled on the top opening, and the cover body and the top opening are sealed through a sealing strip.
On the basis of the technical scheme, the present disclosure further provides a battery pack, which comprises a plurality of battery modules in the technical scheme.
On the basis of the technical scheme, the disclosure also provides a vehicle which comprises the battery pack in the technical scheme.
Through above-mentioned technical scheme, among the battery module that this disclosure provided, when electric core assembly takes place thermal runaway and when spontaneous combustion, the temperature sensing blanking cover on the cooling plate can melt, and the coolant liquid that flows along the coolant liquid runner in the cooling plate can flow through the outage to prevent the spontaneous combustion of electric core assembly. The battery pack provided by the present disclosure has the same technical effects as the battery module in the above technical solution, and the vehicle provided by the present disclosure has the same technical effects as the battery pack in the above technical solution, and therefore, unnecessary repetition is avoided, and no further description is given here.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is an exploded view of a battery module according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural view of a cooling assembly in an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of a cooling plate in an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a cell assembly according to an embodiment of the present disclosure;
fig. 5 is a schematic structural view of a cooling assembly and a battery cell assembly accommodated in a case according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a battery pack according to an embodiment of the present disclosure.
Description of the reference numerals
1-a cell assembly, 11-a single cell, 12-a silica gel sheet, 2-a cooling assembly, 20-a cooling plate, 201-a first cooling plate, 2011-a first water inlet, 2012-a first water outlet, 202-a second cooling plate, 2021-a second water inlet, 2022-a second water outlet, 203-a third cooling plate, 2031-a third water inlet, 2032-a third water outlet, 23-heat-conducting structural adhesive, 24-a cooling liquid flow channel, 25-a liquid discharge hole, 26-a heat-sensitive blocking cover, 3-a box body, 31-a top opening and 4-a cover body.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, when the terms of orientation such as "up" and "down" are used without any contrary explanation, they generally refer to the up and down of the battery module in the normal use state, and "inside" and "outside" refer to the inside and outside with respect to the profile of the corresponding component. The terms "length direction" and "width direction" used in the present disclosure refer to X direction and Y direction in fig. 1, respectively, "first", "second", and the like are for distinguishing one element from another element, and have no order or importance. In addition, when the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.
According to an embodiment of the present disclosure, as shown in fig. 1, the battery module may include a battery cell assembly 1 and a cooling assembly 2, as shown in fig. 1, fig. 2 and fig. 5, the cooling assembly 2 may include at least one cooling plate 20, the cooling plate 20 is attached to a surface of the battery cell assembly 1, and as shown in fig. 3, a cooling fluid channel 24 is disposed in the cooling plate 20. Referring to fig. 2, the cooling plate 20 is provided with a drain hole 25 communicating with the coolant flow passage 24, and a heat sensitive cap 26 is sealingly connected to the drain hole 25. The heat-sensitive blocking cover 26 may be made of a material that can be melted at a high temperature, and when the temperature of the cell assembly 1 is too high, the heat-sensitive blocking cover 26 can be melted to release the cooling liquid to the cell assembly 1. In addition, a temperature sensor (not shown) for detecting the internal temperature of the cell assembly 1 may be disposed in the battery module, and when the temperature sensor senses that the internal temperature of the cell assembly 1 is higher than a preset value, the heat-sensitive blocking cover 26 may be controlled to melt, so as to release the coolant to the cell assembly 1.
Through above-mentioned technical scheme, among the battery module that this disclosure provided, when electric core assembly 1 takes place thermal runaway and when spontaneous combustion, heat-sensitive blanking cover 26 on the cooling plate 20 can melt, and the coolant liquid that flows along coolant liquid runner 24 in the cooling plate 20 can flow out through outage 25 to prevent the spontaneous combustion of electric core assembly 1.
As shown in fig. 2, the drain hole 25 is provided on the side of the cooling plate 20 facing the cell assembly 1, so that the cooling liquid can directly contact the cell assembly 1 when being discharged from the drain hole 25.
Referring to fig. 1, 4 and 5, the battery cell assembly 1 may include a plurality of battery cells 11, the plurality of battery cells 11 are stacked in sequence along a length direction of the battery cell assembly 1, and referring to fig. 2, a drain hole 25 is formed on a side surface of the cooling plate 20 facing the battery cells 11, so that the cooling liquid can directly contact the battery cells 11 when being discharged from the drain hole 25.
Referring to fig. 1 and 2, the cooling assembly 2 includes at least two cooling plates 20, and the adjacent cooling plates 20 are connected in series with each other to simplify the arrangement of a pipeline for flowing a cooling liquid in the battery module, so as to reduce the volume and weight of the battery module, wherein the cooling plate 20 is attached to at least one of two side end surfaces of the cell assembly 1 opposite to each other in the width direction, and the bottom surface of the cell assembly 1 is attached to the at least one cooling plate 20 to increase the contact area between the cell assembly 1 and the cooling assembly 2, thereby improving the cooling efficiency.
Referring to fig. 1, 2 and 5, the cooling assembly 2 may include a first cooling plate 201, a second cooling plate 202 and a third cooling plate 203 which are sequentially connected in series, where the second cooling plate 202 is attached to the bottom surface of the cell assembly 1, and the first cooling plate 201 and the third cooling plate 203 are respectively attached to two side end surfaces of the cell assembly 1 which are opposite to each other in the width direction, so that the cooling assembly 2 can simultaneously cool three side surfaces of the cell assembly 1, thereby accelerating heat dissipation of the cell assembly 1 and improving heat dissipation efficiency.
Further, as shown in fig. 2, the drain hole 25 may be provided on the cooling plate 20 that is disposed in abutment with the side end surface of the cell assembly 1, that is, the drain hole 25 may be provided on the cooling plate 20 extending in the vertical direction, and the drain hole 25 may be provided on an upper portion of the cooling plate 20, so that the coolant can flow downward under the action of gravity, thereby extinguishing flames generated by spontaneous combustion of the cell assembly 1. Referring to fig. 1, 2 and 5, the water inlet and the water outlet of the cooling plate 20 may be disposed at the same end of the cell assembly 1 along the length direction. Specifically, referring to fig. 2, the first cooling plate 201 has a first water inlet 2011 and a first water outlet 2012, the second cooling plate 202 has a second water inlet 2021 and a second water outlet 2022, and the third cooling plate 203 has a third water inlet 2031 and a third water outlet 2032, wherein the first water inlet 2011 is configured to be in fluid communication with the cooling assembly 2 of the adjacent battery module, the first water outlet 2012 is in fluid communication with the second water inlet 2021 through a pipeline, the second water outlet 2022 is in fluid communication with the third water inlet 2031 through a pipeline, and the third water outlet 2032 is configured to be in fluid communication with the cooling assembly of the adjacent battery module. Because first water inlet 2011 and first delivery port 2012, second water inlet 2021 and second delivery port 2022, third inlet 2031 and third delivery port 2032 all set up at the same end of electric core assembly 1 along length direction, consequently, can shorten the length of the pipeline between first delivery port 2012 and the second water inlet 2021 and between second delivery port 2022 and the third inlet 2031 to further simplify the coolant liquid pipeline in the battery module.
Since the water inlet and the water outlet on the cooling plate 20 are provided at the same end in the length direction, the coolant flow channel 24 may be folded back and extended in the length direction within the cooling plate 20 to communicate the water inlet and the water outlet. In addition, the cooling plate 20 may be formed using an extruded cavity profile to facilitate the formation of the coolant flow channels 24 in the cooling plate 20.
In order to accelerate the heat exchange between the cell assembly 1 and the cooling plate 20, as shown in fig. 2, the side of the cooling plate 20 facing the cell assembly 1 may be provided with a heat conductive structural adhesive 23. In order to accelerate the heat inside the battery cell assembly 1 to be transferred to the surface of the battery cell assembly 1, referring to fig. 4, a silicone sheet 12 may be disposed between adjacent monomer battery cells 11 to accelerate the heat to be dissipated from the inside of the battery cell assembly 1 to the outside, and the silicone sheet 12 and the monomer battery cells 11 may be bonded by a structural sealant to form the battery cell assembly 1.
In addition, as shown in fig. 1 and fig. 5, the battery module may further include a box 3 and a cover 4, the box 3 has a containing cavity with a top opening 31, the battery cell assembly 1 and the cooling assembly 2 are contained in the containing cavity through the top opening 31, specifically, the cooling plate 20 and the box 3 may be fixedly connected through a bolt, the cover 4 is fastened on the top opening 31 and fixedly connected with the box 3 through a bolt, and the cover 4 and the top opening 31 may be sealed through a sealing strip, so that the sealing grade of the battery module can reach IP 67.
On the basis of the technical scheme, the present disclosure further provides a battery pack, which is shown in fig. 6 and includes a plurality of battery modules in the technical scheme.
Through the above technical scheme, the battery pack provided by the present disclosure has the same technical effects as the battery module in the above technical scheme, and is not described herein in detail in order to avoid unnecessary repetition.
Wherein, the cooling assembly 2 of a plurality of battery module in the battery package can be established ties by a side of battery package to the opposite side in proper order to simplify the arrangement that is used for the pipeline of coolant liquid in the battery package, be convenient for to the maintenance and the change of single battery module.
On the basis of the technical scheme, the disclosure also provides a vehicle which comprises the battery pack in the technical scheme.
Through the above technical scheme, the vehicle provided by the present disclosure has the same technical effects as the battery pack in the above technical scheme, and is not described herein again in order to avoid unnecessary repetition.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A battery module, comprising:
a battery cell assembly; and
the cooling assembly comprises at least one cooling plate, the cooling plate is attached to the surface of the battery core assembly, a cooling liquid flow channel is arranged in the cooling plate, a liquid discharge hole communicated with the cooling liquid flow channel is formed in the cooling plate, and a thermosensitive plug cover is connected to the liquid discharge hole in a sealing mode.
2. The battery module according to claim 1, wherein the side of the cooling plate facing the cell assembly is provided with the drain hole.
3. The battery module of claim 2, wherein the cell assembly comprises a plurality of individual cells, and the individual cells are sequentially stacked along a length direction of the cell assembly;
and the side surface of the cooling plate facing the single battery cell is provided with the liquid discharge hole.
4. The battery module according to claim 1, wherein the cooling assembly comprises at least two cooling plates, and adjacent cooling plates are arranged in series with each other, wherein at least one of two widthwise opposite side end surfaces of the cell assembly is provided with the cooling plate, and a bottom surface of the cell assembly is provided with the at least one cooling plate.
5. The battery module according to claim 4, wherein the cooling assembly includes a first cooling plate, a second cooling plate, and a third cooling plate connected in series in this order, the second cooling plate is attached to the bottom surface of the cell assembly, and the first cooling plate and the third cooling plate are respectively attached to two side end surfaces of the cell assembly that are opposite to each other in the width direction.
6. The battery module according to claim 4 or 5, wherein the drain hole is provided in the cooling plate attached to the side end surface; and/or the presence of a gas in the gas,
the water inlet and the water outlet of the cooling plate are both arranged at the same end of the battery cell assembly along the length direction.
7. The battery module according to claim 3, wherein a side of the cooling plate facing the cell assembly is provided with a thermally conductive structural adhesive; and/or the presence of a gas in the gas,
and a silica gel sheet is arranged between the adjacent monomer battery cores and is bonded with the monomer battery cores through a structural sealant.
8. The battery module according to claim 1, further comprising:
a box body having a top opening accommodating cavity, wherein the battery cell assembly and the cooling assembly are accommodated in the accommodating cavity through the top opening; and the number of the first and second groups,
the cover body is buckled on the top opening, and the cover body is sealed with the top opening through a sealing strip.
9. A battery pack comprising a plurality of battery modules according to any one of claims 1 to 8.
10. A vehicle characterized by comprising the battery pack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122102089.0U CN215527804U (en) | 2021-09-01 | 2021-09-01 | Battery module, battery package and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122102089.0U CN215527804U (en) | 2021-09-01 | 2021-09-01 | Battery module, battery package and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215527804U true CN215527804U (en) | 2022-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122102089.0U Active CN215527804U (en) | 2021-09-01 | 2021-09-01 | Battery module, battery package and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN215527804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748011A (en) * | 2024-02-09 | 2024-03-22 | 合众新能源汽车股份有限公司 | Battery module and electric equipment |
-
2021
- 2021-09-01 CN CN202122102089.0U patent/CN215527804U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117748011A (en) * | 2024-02-09 | 2024-03-22 | 合众新能源汽车股份有限公司 | Battery module and electric equipment |
| CN117748011B (en) * | 2024-02-09 | 2024-06-11 | 合众新能源汽车股份有限公司 | Battery module and electric equipment |
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