CN113224415A - Liquid cooling board and battery package - Google Patents
Liquid cooling board and battery package Download PDFInfo
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- CN113224415A CN113224415A CN202110400444.4A CN202110400444A CN113224415A CN 113224415 A CN113224415 A CN 113224415A CN 202110400444 A CN202110400444 A CN 202110400444A CN 113224415 A CN113224415 A CN 113224415A
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- plate
- upper plate
- liquid cooling
- liquid
- battery module
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- 238000001816 cooling Methods 0.000 title claims abstract description 78
- 239000007788 liquid Substances 0.000 title claims abstract description 75
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000003973 paint Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 238000012546 transfer Methods 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 8
- 239000002937 thermal insulation foam Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 5
- 229910001416 lithium ion Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
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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
- 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
- H01M10/61—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
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a liquid cooling plate and a battery pack. The liquid cooling plate comprises an upper plate and a lower plate, the lower plate is connected to the bottom of the upper plate and matched with the upper plate to form a medium flow channel, and an assembly boss used for installing the liquid cooling plate at a preset position is arranged on the upper plate towards the lower plate in a protruding mode. According to the battery pack, the assembling boss is arranged on the upper plate, the liquid cooling plate is arranged on the box body of the battery pack through the assembling boss, the contact area between the liquid cooling plate and the box body is reduced due to the arrangement of the assembling boss, and the low heat transfer between the liquid cooling plate and the box body of the battery pack is ensured. Therefore, heat insulation foam does not need to be arranged between the bottom of the battery module and the box body, materials are reduced, and therefore the production cost of the battery pack is reduced.
Description
Technical Field
The invention relates to the technical field of new energy batteries, in particular to a liquid cooling plate and a battery pack.
Background
As a main energy supply of the electric vehicle, the lithium ion battery is the first choice for the electric vehicle due to its excellent performance. The lithium ion battery can generate a heating phenomenon in the charging and discharging processes, the lithium ion battery is sensitive to the environmental temperature, the discharge capacity is reduced due to too low temperature, and the explosion caused by internal short circuit of the battery due to too high temperature. The ambient temperature of the lithium ion is generally 0 ℃ to 45 ℃. Below this temperature range, heating of the battery is required, and above this temperature range, cooling of the battery is required.
Therefore, the lithium ion battery generally needs to be added with a heat dissipation structure in the battery module, when the temperature of the battery is too low, the battery needs to be heated, and when the temperature is too high, the battery needs to be cooled so as to ensure that the battery works at the optimal temperature, and safety accidents can not occur.
Traditional battery module generally adopts harmonica tubular water-cooling board as heat radiation structure, and harmonica tubular water-cooling board sets up between the box of battery module bottom and battery package, because harmonica tubular water-cooling board bottom is the plane, if directly set up in the box, then area of contact is great between harmonica tubular water-cooling board and the box, and the heat transmits for the box through harmonica tubular water-cooling board very easily, causes calorific loss. For this reason, the bottom of harmonica formula water-cooling board is provided with the cotton of thermal-insulated bubble of one deck usually, sets up thermal-insulated bubble cotton can reduce the heat transfer between harmonica tubular water-cooling board and the box of battery package. However, the thermal insulation foam needs to support the harmonica type water cooling plate, so that the requirement on the material of the thermal insulation foam is high, and the cost is high.
Disclosure of Invention
Accordingly, there is a need for a liquid cooling plate and a battery pack that reduces the cost of manufacturing the battery pack while ensuring low heat transfer between the liquid cooling plate and the battery pack case.
The invention provides a liquid cooling plate which comprises an upper plate and a lower plate, wherein the lower plate is connected to the bottom of the upper plate and matched with the upper plate to form a medium flow channel, and an assembly boss used for installing the liquid cooling plate at a preset position is convexly arranged on the upper plate towards the lower plate.
Because the liquid cooling plate is provided with the assembly boss, the liquid cooling plate is installed on the box of battery package through the assembly boss, and the contact area between liquid cooling plate and the box has been reduced in the setting of assembly boss, has guaranteed that the heat transfer between the box of liquid cooling plate and battery package is lower. Therefore, heat insulation foam does not need to be arranged between the bottom of the battery module and the box body, materials are reduced, and therefore the production cost of the battery pack is reduced.
In one embodiment, the mounting boss is stamped and formed from the upper plate toward the lower plate.
The assembly boss is formed by stamping, the process is simple, the processing is convenient, the structural strength of the assembly boss is high, the liquid cooling plate can be well supported, and the deformation of the liquid cooling plate is reduced.
In one embodiment, the upper and lower plates are aluminum alloy plates; and/or the upper surface of the upper plate is sprayed with insulating paint.
The aluminum alloy plate has light weight, high structural strength and good heat transfer effect. The light weight is favorable for the lightweight design of the battery pack. The battery module can be well supported by high structural strength, and deformation is not easy to occur. The liquid cooling plate is favorable for heating or radiating the battery module due to good heat transfer effect. The insulating paint is sprayed on the upper surface of the upper plate, so that the insulating property is improved, the occurrence of electric leakage is reduced, and the use safety of the battery pack is improved.
In one embodiment, the assembling bosses are multiple and are arranged along the length direction of the upper plate.
So set up, be favorable to supporting the liquid cooling board and set up the battery module on the liquid cooling board.
In one embodiment, the upper plate is provided with at least two rows of the assembling bosses, wherein the two rows of the assembling bosses are respectively arranged at the long edges of the upper plate.
So, the assembly boss can better support liquid cold plate and set up the battery module on the liquid cold plate, reduces the deformation of liquid cold plate.
In one embodiment, the upper deck has a width greater than a width of the lower deck.
Therefore, the lower layer plate can be connected between the two rows of assembling bosses close to the outside, the material consumption of the lower layer plate can be reduced, and certain cost can be saved.
The invention also provides a battery pack which comprises a box body, a battery module and the liquid cooling plate, wherein the battery module is fixed in the box body, the box body comprises a bottom plate, the liquid cooling plate is arranged between the battery module and the bottom plate, the upper plate is connected to the bottom of the battery module, the lower plate is arranged towards the bottom plate, and the liquid cooling plate is arranged on the bottom plate through the assembling boss.
In one embodiment, the total contact area of the assembling bosses and the bottom plate is S1, the area of the upper plate projected on the bottom plate is S2, and S1 is less than or equal to 0.1S 2.
So set up, area of contact between the bottom plate of liquid cooling board and box is less, has guaranteed that the heat transfer between liquid cooling board and the box is less to the calorific loss of liquid cooling board has been reduced.
In one embodiment, the upper deck is riveted to the base plate; and/or the upper plate is connected with the battery module through heat-conducting silica gel.
The upper plate is riveted on the bottom plate, so that the connection strength between the liquid cooling plate and the box body is high, and the effectiveness of the liquid cooling plate can be ensured. The upper plate is connected with the battery module through the heat-conducting silica gel, so that the heat transfer efficiency between the battery module and the liquid cooling plate is high, and the liquid cooling plate can timely heat the battery module when the temperature of the battery module is lower; meanwhile, when the temperature of the battery module is higher, the liquid cooling plate can timely cool the battery module, so that the battery module is always kept at the optimal working temperature, and safety accidents are reduced.
In one embodiment, the lower plate and the bottom plate have a gap therebetween, and the gap is 2mm-5 mm.
According to the liquid cooling plate and the battery pack provided by the invention, the assembling boss is arranged on the upper plate, the liquid cooling plate is arranged on the box body of the battery pack through the assembling boss, the contact area between the liquid cooling plate and the box body is reduced due to the arrangement of the assembling boss, and the low heat transfer between the liquid cooling plate and the box body of the battery pack is ensured. Therefore, heat insulation foam does not need to be arranged between the bottom of the battery module and the box body, materials are reduced, and therefore the production cost of the battery pack is reduced.
Drawings
Fig. 1 is a schematic cross-sectional view of a battery pack according to an embodiment of the present invention;
FIG. 2 is a schematic view of the assembly of a liquid cooled panel and a base plate according to an embodiment of the invention;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a partial enlarged view of the portion B in FIG. 4;
FIG. 6 is a schematic structural diagram of an upper plate according to an embodiment of the present invention;
FIG. 7 is a schematic view of the backside of a liquid-cooled panel according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of a liquid cooling plate according to an embodiment of the present invention;
fig. 9 is a partial enlarged view at C in fig. 8.
Reference numerals: 10. a box body; 11. a base plate; 111. a step structure; 20. a battery module; 30. a liquid-cooled plate; 301. a medium flow passage; 31. an upper plate; 311. assembling a boss; 312. riveting holes; 32. a lower layer plate; 321. a rib is protruded; 33. a water inlet connection; 34. a water outlet joint; 40. and (4) riveting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It will be understood that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, the present invention provides a battery pack, which includes a case 10, a battery module 20, and a liquid cooling plate 30. The battery module 20 is fixed in the box body 10, the box body 10 includes a bottom plate 11, and the liquid cooling plate 30 is disposed between the battery module 20 and the bottom plate 11.
Referring to fig. 6 to 8, the liquid-cooled plate 30 includes an upper plate 31 and a lower plate 32, the lower plate 32 is connected to the bottom of the upper plate 31 and cooperates with the upper plate 31 to form a medium channel 301, and an assembling boss 311 for installing the liquid-cooled plate 30 at a predetermined position is protruded from the upper plate 31 toward the lower plate 32.
The upper plate 31 is coupled to the bottom of the battery module 20, the lower plate 32 is disposed toward the base plate 11, and the liquid cooling plate 30 is mounted on the base plate 11 through the mounting bosses 311.
According to the battery pack provided by the invention, the assembling boss 311 is arranged on the upper plate 31, the liquid cooling plate 30 is arranged on the bottom plate 11 of the box body 10 through the assembling boss 311, the contact area between the liquid cooling plate 30 and the box body 10 is reduced due to the arrangement of the assembling boss 311, and the lower heat transfer between the liquid cooling plate 30 and the box body 10 of the battery pack is ensured. Thus, heat insulation foam does not need to be arranged between the bottom of the battery module 20 and the box body 10, and materials are reduced, so that the production cost of the battery pack is reduced.
In one embodiment, the total contact area of the plurality of mounting bosses 311 and the bottom plate 11 is S1, the area of the upper plate 31 projected on the bottom plate 11 is S2, and S1 is not less than 0.1S 2. Therefore, the contact area between the liquid cooling plate 30 and the bottom plate 11 of the box body 10 is small, and the heat transfer between the liquid cooling plate 30 and the box body 10 is less, so that the heat loss of the liquid cooling plate 30 is reduced.
Referring to fig. 2 to 5, in an embodiment, the upper plate 31 is riveted to the bottom plate 11 by a rivet 40, so that the connection strength between the liquid cooling plate 30 and the case 10 is high, and the effectiveness of the liquid cooling plate 30 can be ensured. The riveting part of the upper plate 31 is located at the assembling boss 311, and in order to facilitate the riveting of the upper plate 31, the assembling boss 311 is provided with a riveting hole 312.
In one embodiment, the upper plate 31 is connected to the battery module 20 through heat-conducting silica gel, so that the heat transfer efficiency between the battery module 20 and the liquid cooling plate 30 is high, and the liquid cooling plate 30 can heat the battery module 20 in time when the temperature of the battery module 20 is low; meanwhile, when the temperature of the battery module 20 is high, the liquid cooling plate 30 can timely cool the battery module 20, so that the battery module 20 is always kept at the optimal working temperature, and safety accidents are reduced.
Referring to fig. 3 and 4, in an embodiment, a gap L is formed between the lower plate 32 and the bottom plate 11, and the gap L is 2mm to 5 mm. The lower plate 32 has a gap with the bottom plate 11, so that the lower plate 32 is prevented from contacting the bottom plate 11 to transfer heat to the case 10. If the gap L between the lower plate 32 and the bottom plate 11 is too small, there is a risk that the lower plate 32 contacts the bottom plate 11, thereby increasing the contact area between the liquid-cooled plate 30 and the tank 10. If the gap L between the lower plate 32 and the bottom plate 11 is too large, it occupies more internal space, affecting the overall volume of the battery pack. In this embodiment, the gap L between the lower plate 32 and the bottom plate 11 is 2mm-5mm, and the size of the gap L is moderate, so that the lower plate 32 is ensured not to contact the bottom plate 11, and the liquid cooling plate 30 is ensured to contact the bottom plate 11 only through the assembling boss 311, thereby ensuring that the liquid cooling plate 30 and the box body 10 have a small contact area.
In order to secure the gap L between the lower plate 32 and the base plate 11, a step structure may be provided on the base plate 11, and the fitting boss 311 is mounted on the step structure 111, as shown in fig. 2 and 4. Of course, a higher mounting boss 311 may be provided to ensure a gap L between the lower plate 32 and the bottom plate 11, which is not limited by the present invention.
Referring to fig. 9, in one embodiment, the assembling boss 311 is formed by punching the upper plate 31 toward the lower plate 32. The assembly boss 311 is formed by stamping, the process is simple, the processing is convenient, the structural strength of the assembly boss 311 is high, the liquid cooling plate 30 can be well supported, and the deformation of the liquid cooling plate 30 is reduced.
In one embodiment, the upper plate 31 and the lower plate 32 are both aluminum alloy plates, which have light weight, high structural strength, and good heat transfer effect. The light weight is favorable for the lightweight design of the battery pack. The structural strength is high, the battery module 20 can be well supported, and deformation does not easily occur. The liquid cooling plate 30 can heat or dissipate heat of the battery module 20 due to good heat transfer effect.
In one embodiment, the insulating paint is sprayed on the upper surface of the upper plate 31, so that the insulating property is improved, the occurrence of electric leakage is reduced, and the use safety of the battery pack is improved. Further, the insulating varnish may be an insulating resin, and specifically may be a polyurethane resin. The polyurethane resin has good insulating property, high hardness, good wear resistance and aging resistance.
Referring to fig. 2, 6 and 7, the mounting bosses 311 are plural, and the plurality of mounting bosses 311 are arranged along the length direction of the upper plate 31. Thus, the liquid cooling plate 30 and the battery module 20 arranged on the liquid cooling plate 30 are supported. Further, the upper plate 31 is provided with at least two rows of the assembling bosses 311, wherein the two rows of the assembling bosses 311 are respectively arranged at the long sides of the upper plate 31. Thus, the assembling bosses 311 can better support the liquid cooling plate 30 and the battery module 20 arranged on the liquid cooling plate 30, and the deformation of the liquid cooling plate 30 is reduced. In this embodiment, the upper plate 31 is provided with three rows of the assembling bosses 311, two rows of the assembling bosses 311 are respectively arranged at the long sides of the upper plate 31, and the third row of the assembling bosses 311 is arranged on the central line of the upper plate 31, so that the deformation of the liquid cooling plate 30 is greatly reduced. Accordingly, the base plate 11 is provided with a plurality of step structures 111, the step structures 111 are in an elongated shape, and one step structure 111 corresponds to one row of the assembly bosses 311.
Referring to fig. 7, further, the width E of the upper plate 31 is greater than the width F of the lower plate 32, so that the lower plate 32 can be connected between the two outer rows of mounting bosses 311, and the material consumption of the lower plate 32 can be reduced, thereby saving a certain cost.
Referring to fig. 8, in an embodiment, the upper plate 31 is a flat plate, the lower plate 32 is stamped toward the bottom plate 11 to form the rib 321, and the rib 321 cooperates with the upper plate 31 to form the medium channel 301, so that the medium channel 301 can be formed by only processing the lower plate 32, and the processing process is simpler. Meanwhile, the upper plate 31 is of a flat plate structure, so that the battery module 20 can be better attached, and the heat transfer efficiency between the battery module 20 and the liquid cooling plate 30 can be improved.
Further, the upper plate 31 and the lower plate 32 are welded. Therefore, the upper plate 31 and the lower plate 32 are firmly connected, the sealing performance is good, and the leakage is not easy to occur.
Referring to fig. 2, 4 and 6, the upper plate 31 is further provided with a water inlet connector 33 and a water outlet connector 34, and the water inlet connector 33 and the water outlet connector 34 are respectively connected to the inlet end and the outlet end of the medium flow passage 301. The medium (e.g., water) enters the medium flow channel 301 from the water inlet connector 33, flows through the medium flow channel 301, and then flows out from the water outlet connector 34, so that heat exchange between the medium and the battery module 20 is realized, and thus the battery module 20 is heated or cooled.
In summary, according to the battery pack provided by the invention, the assembling boss 311 is arranged on the upper plate 31, the liquid cooling plate 30 is installed on the bottom plate 11 of the box body 10 of the battery pack through the assembling boss 311, the contact area between the liquid cooling plate 30 and the box body 10 is reduced due to the arrangement of the assembling boss 311, and the low heat transfer between the liquid cooling plate 30 and the box body 10 of the battery pack is ensured. Thus, heat insulation foam does not need to be arranged between the bottom of the battery module 20 and the box body 10, and materials are reduced, so that the production cost of the battery pack is reduced.
The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.
Claims (10)
1. The liquid cooling plate is characterized by comprising an upper plate (31) and a lower plate (32), wherein the lower plate (32) is connected to the bottom of the upper plate (31) and matched with the upper plate (31) to form a medium flow channel (301), and an assembling boss (311) used for installing the liquid cooling plate (30) at a preset position is convexly arranged on the upper plate (31) towards the lower plate (32).
2. A liquid cold plate according to claim 1, wherein said mounting boss (311) is stamped from said upper plate (31) towards said lower plate (32).
3. A liquid-cooled plate according to claim 1, characterized in that the upper plate (31) and the lower plate (32) are both aluminium alloy plates;
and/or the upper surface of the upper plate (31) is sprayed with insulating paint.
4. The liquid cold plate of claim 1, wherein said mounting bosses (311) are plural, and a plurality of mounting bosses (311) are arranged along a length direction of said upper plate (31).
5. Liquid-cooled plate according to claim 4, characterized in that the upper plate (31) is provided with at least two rows of the fitting bosses (311), wherein two rows of the fitting bosses (311) are provided at the long sides of the upper plate (31), respectively.
6. A liquid-cooled plate according to claim 1, characterized in that the width of the upper plate (31) is larger than the width of the lower plate (32).
7. A battery pack, comprising a case (10), a battery module (20), and the liquid-cooled plate (30) according to any one of claims 1 to 6, wherein the battery module (20) is fixed in the case (10), the case (10) includes a bottom plate (11), the liquid-cooled plate (30) is disposed between the battery module (20) and the bottom plate (11), the upper plate (31) is connected to the bottom of the battery module (20), the lower plate (32) is disposed toward the bottom plate (11), and the liquid-cooled plate (30) is mounted on the bottom plate (11) through the mounting boss (311).
8. The battery pack according to claim 7, wherein the total area of the plurality of fitting bosses (311) contacting the base plate (11) is S1, and the area of the upper plate (31) projected on the base plate (11) is S2, satisfying S1. ltoreq.0.1S 2.
9. The battery pack according to claim 7, wherein the upper plate (31) is riveted to the base plate (11); and/or the upper plate (31) is connected with the battery module (20) through heat-conducting silica gel.
10. The battery pack according to claim 7, wherein the lower plate (32) has a gap of 2mm to 5mm with the bottom plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110400444.4A CN113224415A (en) | 2021-04-14 | 2021-04-14 | Liquid cooling board and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110400444.4A CN113224415A (en) | 2021-04-14 | 2021-04-14 | Liquid cooling board and battery package |
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|---|---|
| CN113224415A true CN113224415A (en) | 2021-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110400444.4A Pending CN113224415A (en) | 2021-04-14 | 2021-04-14 | Liquid cooling board and battery package |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629334A (en) * | 2021-08-20 | 2021-11-09 | 宁波信泰机械有限公司 | Steel-aluminum hybrid battery box |
| CN114709536A (en) * | 2022-04-08 | 2022-07-05 | 深圳市易新能科技有限公司 | Energy storage battery box |
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