CN113036259A - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN113036259A CN113036259A CN202110241742.3A CN202110241742A CN113036259A CN 113036259 A CN113036259 A CN 113036259A CN 202110241742 A CN202110241742 A CN 202110241742A CN 113036259 A CN113036259 A CN 113036259A
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- China
- Prior art keywords
- battery module
- liquid
- cooling plate
- battery
- liquid cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 239000000110 cooling liquid Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 15
- 239000004964 aerogel Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000002826 coolant Substances 0.000 description 6
- 239000000155 melt Substances 0.000 description 5
- 230000001934 delay Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Automation & Control Theory (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery module and a battery pack, wherein the battery module comprises a shell, a blocking block and an electric core assembly, wherein the shell is provided with a containing cavity, the shell comprises a liquid cooling plate, a flow passage is arranged in the liquid cooling plate, cooling liquid is filled in the flow passage, a discharge hole communicated with the flow passage is formed in the liquid cooling plate, the blocking block blocks the discharge hole, when the temperature of the blocking block is not lower than a set temperature, the blocking block is melted to enable the flow passage to be communicated with the containing cavity, and the electric core assembly is arranged in the containing cavity and abutted against the liquid cooling plate. The battery module has good effect of delaying heat spreading, and has the advantages of small quantity of parts and high space utilization rate.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a battery module and a battery pack.
Background
The battery module is the important component part of power battery package, and when the too high emergence thermal runaway of electric core temperature in the battery module, can make the inside temperature of battery rise, especially use under high temperature environment or when heavy current charge-discharge, can cause the inside violent chemical reaction that takes place of battery, produce a large amount of heat, if the heat does not come to be in time to spill and gather rapidly in the battery inside, the battery can appear leaking, gassing, smoke etc. phenomenon, and the battery can take place violent burning even explosion when serious. Current battery module only is provided with thermal insulation material between electric core, when single electric core takes place the thermal runaway, reduces heat conductivility between the electric core through thermal insulation material to reach the effect that delays thermal extension speed. However, the method cannot reduce the heat of the battery core, and the effect of delaying the heat spread is not good.
Disclosure of Invention
The invention aims to provide a battery module to solve the problems that the heat of battery cores cannot be reduced and the effect of delaying heat spread is not good due to the fact that a heat insulating material is arranged between the battery cores in the conventional battery module.
In order to achieve the purpose, the invention adopts the following technical scheme:
a battery module, comprising:
the cooling device comprises a shell, a cooling device and a cooling device, wherein the shell is provided with a containing cavity and comprises a liquid cooling plate, a flow channel is arranged in the liquid cooling plate, cooling liquid is filled in the flow channel, and a drainage hole communicated with the flow channel is formed in the liquid cooling plate;
the blocking block is blocked in the drainage hole, and when the temperature of the blocking block is not lower than a set temperature, the blocking block is melted to enable the flow channel to be communicated with the accommodating cavity;
the electric core assembly is arranged in the accommodating cavity and is abutted against the liquid cooling plate.
Preferably, the block is made of a structural glue.
Preferably, the number of the drain holes is multiple, the drain holes are arranged at intervals along the length direction of the shell, the number of the blocking pieces is multiple, and the blocking pieces block the drain holes in a one-to-one correspondence manner.
Preferably, the electric core assembly comprises a plurality of electric cores and a plurality of first heat insulation pieces, wherein one first heat insulation piece is arranged between every two electric cores, and the electric cores are abutted to the liquid cooling plate.
Preferably, the two ends of the liquid cooling plate are respectively provided with a liquid inlet hole and a liquid outlet hole, the number of the drain holes is two, and the two drain holes are respectively close to the liquid inlet hole and the liquid outlet hole.
Preferably, the battery further comprises a second heat insulation piece, and the second heat insulation piece is arranged between the battery cell and the shell.
Preferably, the first thermal insulation member and the first thermal insulation member are both aerogel.
A battery pack comprises the battery module.
The invention has the beneficial effects that: the invention provides a battery module and a battery pack, wherein in the battery module, a battery core component is arranged in an accommodating cavity and is abutted against a liquid cooling plate, a flow passage is arranged in the liquid cooling plate, cooling liquid is filled in the flow passage, a discharge hole communicated with the flow passage is formed in the liquid cooling plate, a blocking block blocks the discharge hole, and when the temperature of the blocking block is not lower than a set temperature, the blocking block melts to enable the flow passage to be communicated with the accommodating cavity. When the electricity core subassembly high temperature in battery module takes place the thermal runaway, can arouse the inside temperature rise of battery module, thereby make the sprue temperature rise, when the sprue temperature is not less than the settlement temperature, the sprue melts and makes the runner with hold the chamber intercommunication, and there is pressure in the liquid cooling inboard, coolant liquid in the runner flows into fast and holds the intracavity, heat when can absorbing the electricity core subassembly thermal runaway, cool down the electricity core subassembly, this battery module delays the effectual of thermal spread, and spare part is small in quantity, the space utilization of battery module is high.
Drawings
Fig. 1 is an exploded view of a battery module according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery module according to an embodiment of the present invention.
In the figure:
1. a housing; 11. a liquid-cooled plate; 111. a vent hole;
2. blocking;
3. an electrical core assembly; 31. an electric core; 32. a first thermal insulation member;
4. a second thermal shield.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The invention provides a battery module and a battery pack, wherein the battery module has a good effect of delaying heat spread, and has the advantages of small number of parts and high space utilization rate.
As shown in fig. 1-2, the battery module comprises a housing 1, a blocking block 2 and a cell assembly 3, wherein the housing 1 is provided with a containing cavity, the housing 1 comprises a liquid cooling plate 11, a flow channel is arranged in the liquid cooling plate 11, cooling liquid is filled in the flow channel, a drain hole 111 communicated with the flow channel is arranged on the liquid cooling plate 11, the blocking block 2 is blocked in the drain hole 111, when the temperature of the blocking block 2 is not lower than a set temperature, the blocking block 2 melts to communicate the flow channel with the containing cavity, and the cell assembly 3 is arranged in the containing cavity and abutted against the liquid cooling plate 11. Set for the temperature that the temperature melts for the structure glue, when 3 high temperature of electric core subassembly in the battery module takes place the thermal runaway, can arouse the inside temperature of battery module and rise, thereby make 2 temperature of sprue rise, when 2 temperature of sprue are not less than set for the temperature, sprue 2 melts makes the runner and holds the chamber intercommunication, and pressure in the liquid cooling board 11, the coolant liquid in the runner flows into fast and holds the intracavity, the thermal capacity of coolant liquid is big, the boiling point is low, can absorb the heat when 3 thermal runaway of electric core subassembly, cool down electric core subassembly 3, this battery module delays the effectual that thermal creep, and spare part is small in quantity, battery module's space utilization is high. The coolant has a large heat capacity and a low boiling point.
Preferably, the block 2 is made of structural glue. The blocking block 2 is made of structural adhesive, so that the vent hole 111 can be better sealed, and when the temperature is not lower than the set temperature, the structural adhesive can be melted, so that the cooling liquid flows into the accommodating cavity from the flow channel. In other embodiments, the block 2 may be made of sealant.
Preferably, the number of the drain holes 111 is plural, the plurality of drain holes 111 are provided at intervals along the longitudinal direction of the housing 1, the number of the blocks 2 is plural, and the plurality of blocks 2 are blocked in the plurality of drain holes 111 in one-to-one correspondence. Set up a plurality of discharge orifices 111, melt the back when the sprue 2, can further accelerate the coolant liquid and get into the speed that holds the chamber, can delay the heat in the electric core subassembly 3 better and spread.
Preferably, the electric core assembly 3 includes a plurality of electric cores 31 and a plurality of first thermal insulation members 32, and one first thermal insulation member 32 is disposed between any two electric cores 31, and the electric cores 31 are abutted to the liquid cooling plate 11. When the thermal runaway occurs in the electric core assembly 3, a first heat insulation piece 32 is arranged between any two electric cores 31, so that the thermal resistance between the electric cores 31 can be improved, the heat conduction capability between the electric cores 31 is reduced, the heat transfer speed is reduced, and the effect of delaying the thermal spreading speed can be achieved.
Preferably, the both ends of liquid cooling plate 11 are equipped with feed liquor hole and play liquid hole respectively, and the quantity of discharge orifice 111 is two, and two discharge orifice 111 are close to feed liquor hole and play liquid hole setting respectively, enable the coolant liquid and melt the back at sprue 2 and be full of more easily and hold the chamber, delay the heat of battery module and spread better.
Preferably, a second thermal insulation piece 4 is further included, and the second thermal insulation piece 4 is disposed between the battery cell 31 and the casing 1. The second separator 4 can increase the thermal resistance between the cell 31 and the casing 1, and delay the cell 31 from transferring heat to the casing 1.
Preferably, the first and second insulation 32, 32 are both aerogel. Aerogel is thermal-insulated effectual and light in weight.
A battery pack comprises the battery module. The battery module in the battery pack has a good effect of delaying heat spreading, the number of parts is small, and the space utilization rate of the battery module is high.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A battery module, comprising:
the cooling device comprises a shell (1), wherein the shell (1) is provided with a containing cavity, the shell (1) comprises a liquid cooling plate (11), a flow channel is arranged in the liquid cooling plate (11), cooling liquid is filled in the flow channel, and a drainage hole (111) communicated with the flow channel is formed in the liquid cooling plate (11);
the blocking piece (2) is blocked in the drainage hole (111), and when the temperature of the blocking piece (2) is not lower than a set temperature, the blocking piece (2) is melted to enable the flow channel to be communicated with the accommodating cavity;
the electric core assembly (3), the electric core assembly (3) set up in hold the intracavity, and with liquid-cooled board (11) butt.
2. The battery module according to claim 1, wherein the block (2) is made of structural glue.
3. The battery module according to claim 1, wherein the number of the drain holes (111) is plural, the plurality of drain holes (111) are arranged at intervals in the longitudinal direction of the housing (1), the number of the blocks (2) is plural, and the plurality of blocks (2) are blocked in the plurality of drain holes (111) in a one-to-one correspondence.
4. The battery module according to any one of claims 1 to 3, wherein the cell assembly (3) comprises a plurality of cells (31) and a plurality of first thermal insulation members (32), one first thermal insulation member (32) is arranged between any two cells (31), and the cells (31) are abutted to the liquid cooling plate (11).
5. The battery module according to claim 4, wherein the liquid cooling plate (11) is provided with a liquid inlet hole and a liquid outlet hole at two ends thereof, the number of the drain holes (111) is two, and the two drain holes (111) are respectively arranged close to the liquid inlet hole and the liquid outlet hole.
6. The battery module according to claim 4, further comprising a second thermal insulator (4), wherein the second thermal insulator (4) is disposed between the battery cell (31) and the housing (1).
7. The battery module according to claim 6, wherein the first thermal insulator (32) and the second thermal insulator (4) are both aerogel.
8. A battery pack comprising the battery module according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241742.3A CN113036259A (en) | 2021-03-04 | 2021-03-04 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110241742.3A CN113036259A (en) | 2021-03-04 | 2021-03-04 | Battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113036259A true CN113036259A (en) | 2021-06-25 |
Family
ID=76467893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110241742.3A Pending CN113036259A (en) | 2021-03-04 | 2021-03-04 | Battery module and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113036259A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111234A (en) * | 2023-04-12 | 2023-05-12 | 突破电气（天津）有限公司 | Immersed safety energy storage battery |
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| CN111403853A (en) * | 2020-03-28 | 2020-07-10 | 哈尔滨工程大学 | Power battery thermal management system based on joint liquid cooling heat dissipation of utmost point ear and module bottom |
| CN211719658U (en) * | 2020-04-14 | 2020-10-20 | 恒大新能源技术(深圳)有限公司 | Battery box |
| CN212113791U (en) * | 2020-04-26 | 2020-12-08 | 天津市捷威动力工业有限公司 | Battery pack with group structure of soft package battery core |
-
2021
- 2021-03-04 CN CN202110241742.3A patent/CN113036259A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106816668A (en) * | 2017-03-22 | 2017-06-09 | 北京航盛新能科技有限公司 | A kind of electrokinetic cell thermal runaway cooling fire extinguishing liquid cooling apparatus, monitoring system and method |
| US20190097287A1 (en) * | 2017-09-26 | 2019-03-28 | Robert Bosch Gmbh | Battery module |
| CN208093696U (en) * | 2018-04-09 | 2018-11-13 | 深圳市润海电子有限公司 | A kind of water-cooling battery core module with aerogel heat-proof piece |
| CN208522016U (en) * | 2018-08-08 | 2019-02-19 | 深圳市矿鑫发展有限公司 | A kind of new energy battery modules that heat dissipation performance is excellent |
| CN210200803U (en) * | 2019-08-02 | 2020-03-27 | 广州小鹏汽车科技有限公司 | Battery module, battery package and vehicle |
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| CN111403853A (en) * | 2020-03-28 | 2020-07-10 | 哈尔滨工程大学 | Power battery thermal management system based on joint liquid cooling heat dissipation of utmost point ear and module bottom |
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| CN212113791U (en) * | 2020-04-26 | 2020-12-08 | 天津市捷威动力工业有限公司 | Battery pack with group structure of soft package battery core |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116111234A (en) * | 2023-04-12 | 2023-05-12 | 突破电气（天津）有限公司 | Immersed safety energy storage battery |
| CN116111234B (en) * | 2023-04-12 | 2023-07-04 | 突破电气（天津）有限公司 | Immersed safety energy storage battery |
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Application publication date: 20210625 |
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| RJ01 | Rejection of invention patent application after publication |