CN111106268A - Liquid cooling battery box - Google Patents
Liquid cooling battery box Download PDFInfo
- Publication number
- CN111106268A CN111106268A CN201811250751.3A CN201811250751A CN111106268A CN 111106268 A CN111106268 A CN 111106268A CN 201811250751 A CN201811250751 A CN 201811250751A CN 111106268 A CN111106268 A CN 111106268A
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- China
- Prior art keywords
- liquid
- plate
- liquid cooling
- edge
- battery box
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- 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
- H01M10/65—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
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- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a liquid-cooled battery box body, which comprises a box body bottom plate and a liquid-cooled plate, wherein a cooling liquid flow channel is arranged in the liquid-cooled plate, a flow channel opening is also arranged on the liquid-cooled plate, the liquid-cooled plate comprises a main plate body which is positioned in the box body bottom plate or is used for directly forming the box body bottom plate, an annular turnover edge which is turned upwards is arranged at the peripheral edge of the main plate body of the liquid-cooled plate, a bending flow channel communicated with the cooling liquid flow channel is arranged in the turnover edge, and the flow channel opening is positioned on the side surface of the turnover edge and is communicated with the; the liquid cooling battery box body also comprises an annular outer frame which surrounds the flanging edge and is hooped outside the flanging edge. Through setting up the runner mouth in the turn-ups, can improve the height of runner mouth, avoid runner mouth and bottom half's other structures to interfere mutually, in addition, establish outer frame through the periphery hoop at the turn-ups, can form the protection to the liquid cooling board, avoid the mainboard body of liquid cooling board to take place to warp because of the extrusion that receives the battery module, perhaps receive colliding with of box outer structure and damage.
Description
Technical Field
The invention belongs to the field of battery boxes, and particularly relates to a liquid-cooled battery box.
Background
With the development trend of new energy industry, the requirement for energy density of a battery system is higher and higher, and the development of a single battery with large capacity is one of the most effective means. However, the safety problem caused by thermal runaway of the battery follows, the larger the size of the single battery is, the heat in the center of the inside of the battery cell cannot be rapidly transferred, so that the grouped battery pack forms heat aggregation, the phenomena of fire and explosion are easily caused, and in order to solve the problem, the conventional battery box body usually provides a liquid cooling system for the battery.
The Chinese patent application with application publication date of 2017.07.07 and application publication number of CN106935756A discloses a cold-hot integrated box structure, which comprises a box body, wherein the box body comprises a bottom plate and side plates, the bottom plate and the side plates enclose an accommodating cavity for accommodating a battery, a liquid cooling system is a cooling liquid flow channel distributed in the bottom plate in a snake shape, the bottom plate and the side plates are connected in a friction stir welding mode, brazing, argon arc welding, carbon dioxide gas shielded welding or bonding mode, namely, the cooling liquid flow channel in the prior art is directly arranged in an inner cavity on the bottom plate of the battery box body, so that the strength of the bottom plate of the box body is reduced, deformation is easy to occur, the box body cannot meet the requirement of a GB/T31467 vibration test, and the service life is short.
Disclosure of Invention
The invention aims to provide a liquid-cooled battery box body, which is used for solving the technical problems of low strength and short service life of the battery box body in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the liquid cooling battery box body comprises a box body bottom plate and a liquid cooling plate, wherein a cooling liquid flow channel is arranged in the liquid cooling plate, a flow channel opening is also formed in the liquid cooling plate, the liquid cooling plate comprises a main plate body which is positioned in the box body bottom plate or is used for directly forming the box body bottom plate, an annular turnover edge which is turned upwards is arranged at the peripheral edge of the main plate body of the liquid cooling plate, a bending flow channel communicated with the cooling liquid flow channel is arranged in the turnover edge, and the flow channel opening is positioned on the side surface of the turnover edge and is communicated with the cooling liquid flow channel through the bending flow channel; the liquid cooling battery box body further comprises an annular outer frame surrounding the flanging edge and hooped outside the flanging edge.
Has the advantages that: through setting up the runner mouth in the edge of turning over, can improve the height of runner mouth, avoid runner mouth and bottom half's other structures to interfere mutually, in addition, establish outer frame through the periphery hoop at the edge of turning over, can become the protection to the liquid cooling plate, the mainboard body of avoiding the liquid cooling plate is because of taking place to warp by the extrusion of battery module, perhaps receive colliding with of box outer structure and damage, and the runner setting of buckling need not to increase more welding points that are used for welding pipeline or intercommunication structure inside the liquid cooling plate, the manufacturing process degree of difficulty has been reduced and difficult emergence is leaked.
Furthermore, the bottom of the outer frame is provided with a sealing plate packaged below the liquid cooling plate, and the sealing plate is attached to the bottom plate of the box body. The shrouding can further support and protect the liquid cooling plate.
Furthermore, the runner port is located on the outer side face of the turned edge, which is used for corresponding to the side plate of the outer frame, the liquid-cooled battery box body further comprises a connector connected with the runner port, and a through hole for the connector to penetrate out from inside to outside is formed in the side plate of the outer frame. During assembly, the runner port is positioned on the side surface of the side plate facing the outer frame, and the joint can be in butt joint with the runner port after penetrating through the through hole, so that the assembly is convenient.
Further, the liquid-cooled plate includes an upper plate and a lower plate, and the cooling liquid flow passage is a passage formed between the upper plate and the lower plate using a blow-up process. This forms the coolant flow passage while maintaining the structural strength of the upper and lower plates as much as possible.
Furthermore, the upper end of the turning edge is provided with an annular outward turning edge which is lapped on the upper end surface of the peripheral side plate of the outer frame. The side plates around the outer frame can support the turned edges, and the structural strength of the battery box body is further guaranteed.
Further, the main board body of the liquid cooling board directly forms the box bottom board of the liquid cooling battery box body, the liquid cooling battery box body further comprises an upper cover, the upper cover comprises peripheral side walls and cover boards plugged at the upper ends of the peripheral side walls, the peripheral side walls and the cover boards enclose a cavity with the upper end inside the upper cover and the lower end being closed, an annular flanging is arranged at the lower end of the upper cover, and the flanging of the upper cover is in upper-lower sealing fit with the flanging of the liquid cooling board along the upper-lower sealing fit. The sealing performance of the battery case can be further maintained.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a liquid-cooled battery case of the present invention;
FIG. 2 is a schematic view of the liquid cooling plate and the outer frame of FIG. 1;
FIG. 3 is an exploded view of the liquid cooled panel and outer frame of FIG. 1;
fig. 4 is a schematic cross-sectional view of the liquid-cooled battery case of fig. 1.
In the figure: 1. an upper cover; 2. an outer frame; 3. a water inlet joint; 4. a water outlet joint; 5. sealing glue; 6. a liquid-cooled plate; 7. a main board body; 8. a coolant flow passage; 9. folding edges; 10. and (5) outward flanging.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the embodiment of the present invention, as shown in fig. 1 to 4, the liquid-cooled battery box includes a box bottom plate and a liquid-cooled plate 6, the liquid-cooled plate 6 includes a main plate body 7, and the box bottom plate is composed of the main plate body 7.
As shown in fig. 2 to 4, the liquid cooling plate 6 is provided therein with a cooling liquid flow passage 8, the liquid cooling plate 6 includes an upper plate and a lower plate, the cooling liquid flow passage 8 is a passage formed between the two plates by a blow-up process, and the cooling liquid flow passage 8 is arranged in a serpentine shape on the liquid cooling plate 6 and extends in the front-rear direction. The border all around of liquid cooling board 6 is equipped with the annular turn-ups 9 that turns up the book, is equipped with the runner of buckling that is linked together with coolant liquid runner 8 in the turn-ups 9 of front end, is located and is provided with the runner mouth on the lateral surface of the turn-ups 9 of liquid cooling board 6 front end, and the runner mouth passes through the runner of buckling is linked together with coolant liquid runner 8, the runner mouth includes water inlet and delivery port, and water inlet and delivery port set up on the turn-ups 9 of front end along left right direction interval, and the upper end of turn-ups 9 is equipped with annular turn-ups edge, turn up along the overlap joint on the up end of outer frame 2 curb plate all around. The liquid cooling battery box body also comprises a joint connected with the runner port, the joint comprises a water inlet joint 3 and a water outlet joint 4, and the water inlet joint 3 and the water outlet joint 4 are respectively connected with the water inlet and the water outlet. Liquid cooling battery box still includes outer frame 2, and outer frame 2 is the ring frame, centers on and hoops the outside of establishing at turn-ups 9, is equipped with the perforation that corresponds with runner mouth position on outer frame 2's the front end curb plate for supply the joint to pass from inside to outside, specifically, the perforation includes that first perforation and second are perforated, supplies water supply connector 3, water connectors 4 to pass respectively, also is sealing connection between water supply connector 3, water connectors 4 and the perforation. The outer frame 2 is an aluminum profile frame and is formed by extrusion molding, freezing, filling liquid and bending.
As shown in fig. 1 and 4, the liquid-cooled battery box further includes an upper cover 1, the upper cover 1 includes peripheral side walls and a cover plate sealed at the upper ends of the peripheral side walls, the peripheral side walls and the cover plate enclose a cavity with an upper end inside the upper cover and a lower end opening, an annular flanging 10 is arranged at the lower end of the upper cover, the flanging 10 of the upper cover and the flanging edge of the liquid-cooled plate 6 are in upper-lower sealing fit to form a sealing space for placing a battery module, and a sealant 5 is arranged between the flanging 10 and the flanging edge to ensure the sealing property.
According to the invention, the outer frame is hooped outside the turned edge, so that the outer frame supports and protects the liquid cooling plate, and the main plate body of the liquid cooling plate is prevented from being deformed due to the extrusion of the battery module or damaged due to the collision of the outer structure of the box body. Meanwhile, the runner port is arranged on the turnover edge, so that the height of the runner port can be increased, and the runner port is prevented from interfering with other structures at the bottom of the box body.
In other embodiments of the present invention, a sealing plate is disposed at the bottom of the outer frame and is sealed under the liquid cooling plate, and the sealing plate is attached to the bottom plate of the box body to further support and reinforce the liquid cooling plate.
In other embodiments of the present invention, the main plate body of the liquid cooling plate may not be directly formed into the cabinet bottom plate, but may be sandwiched in the cabinet bottom plate.
In other embodiments of the present invention, the water inlet and the water outlet may be respectively located on different turned edges of the liquid cooling plate, and the corresponding first through hole and the second through hole are also respectively located on different side plates of the outer frame.
In other embodiments of the present invention, the cooling liquid flow channels may be arranged on the liquid cooling plate along a ring shape or other shapes.
In other embodiments of the present invention, the coolant flow channels may also be formed by stamping.
Claims (6)
1. Liquid cooling battery box, including the box bottom plate, its characterized in that: the liquid cooling plate comprises a main plate body which is positioned in the box body bottom plate or is used for directly forming the box body bottom plate, the peripheral edge of the main plate body of the liquid cooling plate is provided with an annular turnover edge which is turned upwards, a bent flow passage communicated with the cooling liquid flow passage is arranged in the turnover edge, and the flow passage is positioned on the side surface of the turnover edge and is communicated with the cooling liquid flow passage through the bent flow passage; the liquid cooling battery box body further comprises an annular outer frame surrounding the flanging edge and hooped outside the flanging edge.
2. The liquid-cooled battery box of claim 1, wherein: the bottom of the outer frame is provided with a sealing plate packaged below the liquid cooling plate, and the sealing plate is attached to the bottom plate of the box body.
3. The liquid-cooled battery box of claim 1 or 2, wherein: the runner port is located on the outer side face of the turned edge, which is used for corresponding to the side plate of the outer frame, the liquid cooling battery box body further comprises a connector connected with the runner port, and a through hole for the connector to penetrate out from inside to outside is formed in the side plate of the outer frame.
4. The liquid-cooled battery box of claim 1 or 2, wherein: the liquid cooling plate comprises an upper plate and a lower plate, and the cooling liquid runner is a channel formed between the upper plate and the lower plate by using a blowing process.
5. The liquid-cooled battery box of claim 1 or 2, wherein: the upper end of the turning edge is provided with an annular outward turning edge which is lapped on the upper end surface of the peripheral side plate of the outer frame.
6. The liquid-cooled battery box of claim 5, wherein: the main board body of liquid cooling board directly forms the box bottom plate of liquid cooling battery box, and liquid cooling battery box still includes the upper cover, the upper cover includes lateral wall and the shutoff apron on the lateral wall all around, and lateral wall and apron enclose into the upper end that is in the upper cover inside all around and seal lower extreme open-ended cavity, and the upper cover lower extreme is equipped with annular flanging, the flanging of upper cover with turning up of liquid cooling board is along upper and lower sealed cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250751.3A CN111106268B (en) | 2018-10-25 | 2018-10-25 | Liquid cooling battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250751.3A CN111106268B (en) | 2018-10-25 | 2018-10-25 | Liquid cooling battery box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111106268A true CN111106268A (en) | 2020-05-05 |
| CN111106268B CN111106268B (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811250751.3A Active CN111106268B (en) | 2018-10-25 | 2018-10-25 | Liquid cooling battery box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111106268B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111987261A (en) * | 2020-08-31 | 2020-11-24 | 重庆金康赛力斯新能源汽车设计院有限公司 | Upper cover of integrated power battery |
| WO2022007562A1 (en) * | 2020-03-06 | 2022-01-13 | 宁波市哈雷换热设备有限公司 | Refrigerant-type chip cooler |
| CN114639866A (en) * | 2022-03-10 | 2022-06-17 | 武汉理工大学 | Lithium ion battery thermal management device based on composite phase change material and liquid cooling |
| WO2023092363A1 (en) * | 2021-11-24 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery case, battery, electric device, and method for manufacturing battery case |
| CN116960529A (en) * | 2023-09-21 | 2023-10-27 | 厦门海辰储能科技股份有限公司 | Battery pack, energy storage system and electric equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203733860U (en) * | 2014-01-17 | 2014-07-23 | 李松华 | Novel water-cooling heat-dissipation battery box |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
| CN206610883U (en) * | 2017-03-17 | 2017-11-03 | 微宏动力系统（湖州）有限公司 | A kind of cold battery bag of liquid |
| US20180151930A1 (en) * | 2016-11-30 | 2018-05-31 | Lg Chem, Ltd. | Battery pack having cooling structure with improved stability for use of liquid coolant |
| CN207558861U (en) * | 2017-11-16 | 2018-06-29 | 东莞市迈泰热传科技有限公司 | A kind of battery pack babinet |
-
2018
- 2018-10-25 CN CN201811250751.3A patent/CN111106268B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203733860U (en) * | 2014-01-17 | 2014-07-23 | 李松华 | Novel water-cooling heat-dissipation battery box |
| CN204289553U (en) * | 2014-10-24 | 2015-04-22 | 北汽福田汽车股份有限公司 | A kind of water-cooled cells bag |
| US20180151930A1 (en) * | 2016-11-30 | 2018-05-31 | Lg Chem, Ltd. | Battery pack having cooling structure with improved stability for use of liquid coolant |
| CN206610883U (en) * | 2017-03-17 | 2017-11-03 | 微宏动力系统（湖州）有限公司 | A kind of cold battery bag of liquid |
| CN207558861U (en) * | 2017-11-16 | 2018-06-29 | 东莞市迈泰热传科技有限公司 | A kind of battery pack babinet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022007562A1 (en) * | 2020-03-06 | 2022-01-13 | 宁波市哈雷换热设备有限公司 | Refrigerant-type chip cooler |
| CN111987261A (en) * | 2020-08-31 | 2020-11-24 | 重庆金康赛力斯新能源汽车设计院有限公司 | Upper cover of integrated power battery |
| WO2023092363A1 (en) * | 2021-11-24 | 2023-06-01 | 宁德时代新能源科技股份有限公司 | Battery case, battery, electric device, and method for manufacturing battery case |
| CN114639866A (en) * | 2022-03-10 | 2022-06-17 | 武汉理工大学 | Lithium ion battery thermal management device based on composite phase change material and liquid cooling |
| CN116960529A (en) * | 2023-09-21 | 2023-10-27 | 厦门海辰储能科技股份有限公司 | Battery pack, energy storage system and electric equipment |
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| Publication number | Publication date |
|---|---|
| CN111106268B (en) | 2022-12-06 |
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