CN220627936U - Uniform temperature heat dissipation device, battery assembly and electric device - Google Patents
Uniform temperature heat dissipation device, battery assembly and electric device Download PDFInfo
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- CN220627936U CN220627936U CN202322168400.0U CN202322168400U CN220627936U CN 220627936 U CN220627936 U CN 220627936U CN 202322168400 U CN202322168400 U CN 202322168400U CN 220627936 U CN220627936 U CN 220627936U
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 57
- 238000001816 cooling Methods 0.000 claims abstract description 194
- 239000007788 liquid Substances 0.000 claims abstract description 117
- 239000012528 membrane Substances 0.000 claims abstract description 93
- 239000000110 cooling liquid Substances 0.000 claims abstract description 37
- 239000000178 monomer Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
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Abstract
The utility model belongs to the technical field of batteries, and particularly relates to a uniform temperature heat dissipation device, a battery assembly and an electric device. The uniform-temperature heat dissipation device comprises an air cooling plate, a liquid cooling plate and a hydrophilic membrane assembly which is arranged between the air cooling plate and the liquid cooling plate in a sealing way; the air cooling plate is provided with an air flow channel through which air flows and a first hole group communicated with the air flow channel, the liquid cooling plate is provided with a liquid flow channel through which cooling liquid flows and a second hole group communicated with the liquid flow channel, and air in the first hole group exchanges heat with cooling liquid in the second hole group through the hydrophilic membrane component. In the utility model, the air cooling plate and the liquid cooling plate can cool the single battery, so that the heat dissipation efficiency of the single battery is improved.
Description
Technical Field
The utility model belongs to the technical field of batteries, and particularly relates to a uniform temperature heat dissipation device, a battery assembly and an electric device.
Background
The power battery is used as a power source of the electric automobile, and the excellent performance of the power battery can greatly improve the competitiveness of the electric automobile. The power battery dissipates a large amount of heat in the working process, and a heat dissipation structure is required to be arranged for the power battery in order to ensure that the power battery works in a proper temperature range. In the prior art, a scheme of cooling the power battery by air cooling or liquid cooling exists, but the cooling efficiency is lower.
Disclosure of Invention
The utility model provides a uniform temperature heat dissipation device, a battery assembly and an electric device, aiming at the technical problem of low cooling efficiency of the existing power battery.
In view of the above technical problems, an embodiment of the present utility model provides a uniform temperature heat dissipation device, including an air cooling plate, a liquid cooling plate, and a hydrophilic membrane assembly installed between the air cooling plate and the liquid cooling plate;
the air cooling plate is provided with an air flow channel through which air flows and a first hole group communicated with the air flow channel, the liquid cooling plate is provided with a liquid flow channel through which cooling liquid flows and a second hole group communicated with the liquid flow channel, and air in the first hole group exchanges heat with cooling liquid in the second hole group through the hydrophilic membrane component.
Optionally, a plurality of air flow passages which are parallel and distributed at intervals are arranged on the air cooling plate, and each air flow passage is correspondingly communicated with one group of the first hole groups.
Optionally, the first hole group comprises a plurality of first through holes which are distributed at intervals and are communicated with the air flow channel, and the end face of the hydrophilic membrane component far away from the liquid cooling plate is sealed on all the first through holes;
and along the airflow direction in the airflow channel, the opening area of the first through holes in the same group of first hole groups is gradually increased.
Optionally, the distance between two adjacent first through holes in the same first hole group gradually decreases along the airflow direction in the airflow channel.
Optionally, the liquid flow channel comprises a liquid inlet flow channel, a liquid outlet flow channel and a plurality of cooling flow channels arranged in parallel at intervals, and two opposite ends of all the cooling flow channels are respectively communicated with the liquid inlet flow channel and the liquid outlet flow channel;
the liquid cooling plate is provided with a plurality of groups of second hole groups which are distributed in parallel at intervals, and each cooling flow passage is correspondingly communicated with one group of second hole groups.
Optionally, the second hole group comprises a plurality of second through holes which are distributed at intervals and are communicated with the cooling flow channel, and the end face sealing cover of the hydrophilic membrane component, which is far away from the air cooling plate, is sealed on all the second through holes; and the opening area of the second through hole is gradually increased along the flowing direction of the cooling liquid in the cooling flow channel.
Optionally, the distance between two adjacent second through holes in the same second hole group gradually decreases along the flowing direction of the cooling liquid in the cooling flow channel.
Optionally, the end face of the liquid cooling plate facing the air cooling plate is provided with a plurality of grooves which are distributed in parallel at intervals, and the second hole group is arranged on the inner wall of the groove;
the hydrophilic membrane assembly includes a plurality of hydrophilic membranes mounted in all of the grooves.
Optionally, the liquid inlet flow channel is parallel to the liquid outlet flow channel, and the liquid inlet flow channel is perpendicular to the cooling flow channel.
The utility model also provides a battery assembly, which comprises a single battery and the temperature equalizing heat dissipation device, wherein the single battery is arranged on the end face of the air cooling plate, which is away from the hydrophilic membrane assembly, or the end face of the liquid cooling plate, which is away from the hydrophilic membrane assembly.
The utility model also provides an electric device, which comprises the battery assembly.
In the utility model, a hydrophilic membrane component is arranged between an air cooling plate and a liquid cooling plate in a sealing way, an air flow channel for air supply and circulation and a first hole group communicated with the air flow channel are arranged on the air cooling plate, a liquid flow channel for cooling liquid circulation and a second hole group communicated with the liquid flow channel are arranged on the liquid cooling plate, and the first hole group and the second hole group are in butt joint through the hydrophilic membrane component; the monomer battery can be installed the forced air cooling board deviates from on the face of hydrophilic membrane module, also can install the forced air cooling board deviates from on the face of hydrophilic membrane module, thereby the forced air cooling board with the liquid cooling board can both cool down the monomer battery, has improved the radiating efficiency of monomer battery. When the monomer battery is installed on the face that the forced air cooling board deviates from hydrophilic membrane subassembly, this samming heat abstractor is mainly with the forced air cooling heat dissipation of forced air cooling board, with the liquid cooling heat dissipation of forced air cooling board is as assisting, has realized the function to the even heat dissipation of monomer battery, and this samming heat abstractor both can utilize this kind of simple quick heat dissipation mode of forced air cooling heat dissipation, has compensatied forced air cooling heat dissipation ability not enough and the inhomogeneous problem of heat dissipation simultaneously, can also compensatied liquid cooling heat dissipation and need dispose air conditioner and the water pump of high power, high energy consumption.
In addition, utilize the ventilative characteristics of hydrophilic membrane subassembly water absorption, the coolant liquid in the liquid runner of liquid cooling board can pass through the second hole group infiltration reaches on the hydrophilic membrane subassembly, the wind gas in the wind runner of forced air cooling board passes through first hole group can blow on the hydrophilic membrane subassembly, the coolant liquid evaporates the heat dissipation on the hydrophilic membrane subassembly, thereby has reduced the temperature of wind gas in the wind runner, consequently the liquid cooling board does not need to possess super high coefficient of heat conductivity, sufficient radiating area and higher coolant liquid velocity of flow, and this samming heat abstractor also can play the even and abundant technological effect of heat dissipation.
In addition, the cooling liquid in the liquid flow channel of the liquid cooling plate can infiltrate onto the hydrophilic membrane component through the second hole group, cold air in the air flow channel of the air cooling plate can be blown onto the hydrophilic membrane component through the first hole group, and the cold air can cool the cooling liquid in the second hole group through the hydrophilic membrane component, so that the temperature of the cooling liquid in the liquid cooling plate is reduced, and the heat dissipation efficiency of the liquid cooling plate to the single battery is improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a uniform temperature heat dissipation device according to an embodiment of the present utility model;
FIG. 2 is an exploded view of a heat dissipation device with uniform temperature according to an embodiment of the present utility model;
FIG. 3 is a partial enlarged view of a heat sink with uniform temperature according to an embodiment of the present utility model;
fig. 4 is a schematic structural diagram of an air cooling plate of a uniform temperature heat dissipation device according to an embodiment of the present utility model;
fig. 5 is a cross-sectional view of an air cooling plate of a uniform temperature heat dissipation device according to an embodiment of the present utility model;
fig. 6 is a schematic structural diagram of a liquid cooling plate of a uniform temperature heat dissipation device according to an embodiment of the present utility model;
FIG. 7 is a cross-sectional view of a liquid cooling plate of a uniform temperature heat dissipation device according to an embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a hydrophilic film of a uniform-temperature heat dissipation device according to an embodiment of the present utility model;
fig. 9 is a schematic structural view of a battery assembly according to an embodiment of the present utility model.
Reference numerals in the specification are as follows:
1. a uniform temperature heat dissipation device; 11. an air cooling plate; 111. an air flow passage; 112. a first set of holes; 1121. a first through hole; 12. a liquid cooling plate; 121. a liquid flow channel; 1211. a liquid inlet flow channel; 1212. a liquid outlet channel; 1213. a cooling flow passage; 122. a second set of holes; 1221. a second through hole; 123. a groove; 13. a hydrophilic membrane module; 131. a hydrophilic membrane; 2. and (3) a single battery.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects solved by the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", "middle", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
As shown in fig. 1, 2, 5 and 6, a uniform temperature heat dissipation device 1 according to an embodiment of the present utility model includes an air cooling plate 11, a liquid cooling plate 12 and a hydrophilic membrane module 13 installed between the air cooling plate 11 and the liquid cooling plate 12, where the air cooling plate 11 and/or the liquid cooling plate 12 is used for cooling a member to be cooled; as can be appreciated, the hydrophilic membrane module 13 is a polymer composite material, which has good water absorption and air permeability, and has certain strength and compressibility; the heat dissipation element comprises, but is not limited to, a battery and the like; the heat dissipation part can be arranged on the end surface of the air cooling plate 11, which is away from the hydrophilic membrane component 13, or on the end surface of the liquid cooling plate 12, which is away from the hydrophilic membrane component 13.
The air cooling plate 11 is provided with an air flow channel 111 through which air flows and a first hole group 112 communicated with the air flow channel 111, the liquid cooling plate 12 is provided with a liquid flow channel 121 through which cooling liquid flows and a second hole group 122 communicated with the liquid flow channel 121, and air in the first hole group 112 exchanges heat with cooling liquid in the second hole group 122 through the hydrophilic membrane component 13. It may be appreciated that the first hole set 112 is disposed on an end surface of the air cooling plate 11 facing the hydrophilic membrane assembly 13, the second hole set 122 is disposed on an end surface of the liquid cooling plate 12 facing the hydrophilic membrane assembly 13, the hydrophilic membrane assembly 13 may be a monolithic hydrophilic membrane 131 or may be a plurality of hydrophilic membranes 131 distributed at intervals, and a surface of the hydrophilic membrane assembly 13 facing the air cooling plate 11 may play a role in sealing the first hole set 112, and a surface of the hydrophilic membrane assembly 13 facing the liquid cooling plate 12 may play a role in sealing the second hole set 122.
In the utility model, a hydrophilic membrane module 13 is arranged between an air cooling plate 11 and a liquid cooling plate 12 in a sealing way, an air flow channel 111 for air supply and circulation and a first hole group 112 communicated with the air flow channel 111 are arranged on the air cooling plate 11, a liquid flow channel 121 for cooling liquid circulation and a second hole group 122 communicated with the liquid flow channel 121 are arranged on the liquid cooling plate 12, and the first hole group 112 and the second hole group 122 are in butt joint through the hydrophilic membrane module 13; the monomer battery 2 can be installed on the face that forced air cooling board 11 kept away from hydrophilic membrane subassembly 13 also can be installed on the face that forced air cooling board 12 deviates from hydrophilic membrane subassembly 13 spare, thereby forced air cooling board 11 with liquid cooling board 12 can both cool down monomer battery 2, has improved monomer battery 2's radiating efficiency. When the monomer battery is installed on the face that air-cooled panel 11 deviates from hydrophilic membrane module 13, this samming heat abstractor is mainly with the forced air cooling heat dissipation of air-cooled panel 11, with the liquid cooling heat dissipation of liquid cooling board 12 is as assisting, has realized the function to the even heat dissipation of monomer battery 2, and this samming heat abstractor 1 both can utilize this kind of simple quick heat dissipation mode of forced air cooling heat dissipation, has compensatied forced air cooling heat dissipation ability not enough and the inhomogeneous problem of heat dissipation simultaneously, can also compensatied liquid cooling heat dissipation and need dispose air conditioner and the water pump of high power, high energy consumption.
In addition, by utilizing the characteristics of water absorption and ventilation of the hydrophilic membrane assembly 13, the cooling liquid in the liquid flow channel 121 of the liquid cooling plate 12 can infiltrate into the hydrophilic membrane assembly 13 through the second hole group 122, the air in the air flow channel 111 of the air cooling plate 11 can be blown onto the hydrophilic membrane assembly 13 through the first hole group 112, and the cooling liquid evaporates and dissipates heat on the hydrophilic membrane assembly 13, so that the temperature of the air in the air flow channel 111 is reduced, and therefore, the liquid cooling plate 12 does not need to have an ultrahigh heat conductivity, a sufficient heat dissipation area and a higher cooling liquid flow rate, and the uniform temperature heat dissipation device 1 can also achieve the technical effects of uniform heat dissipation and sufficient heat dissipation.
In addition, the cooling liquid in the liquid flow channel 121 of the liquid cooling plate 12 can infiltrate onto the hydrophilic membrane assembly 13 through the second hole group 122, cold air in the air flow channel 111 of the air cooling plate 11 can be blown onto the hydrophilic membrane assembly 13 through the first hole group 112, and the cold air can cool the cooling liquid in the second hole group 122 through the hydrophilic membrane assembly 13, so that the temperature of the cooling liquid in the liquid cooling plate 12 is reduced, and the heat dissipation efficiency of the liquid cooling plate 12 to the single battery is improved.
In an embodiment, as shown in fig. 4 and fig. 5, the air cooling plate 11 is provided with a plurality of parallel air flow passages 111 that are distributed at intervals, and each air flow passage 111 is correspondingly communicated with one group of the first hole groups 112. As can be appreciated, the air flow channel 111 is disposed in the air cooling plate 11 along the length direction, and two opposite ends of the air flow channel 111 are both open; the air cooling plate 11 is provided with a plurality of groups of first hole groups 112 which are distributed at intervals and in parallel, a plurality of first through holes 1121 in the same first hole group 112 are distributed at intervals along the length direction of the air flow channel 111, and each air flow channel 111 is correspondingly provided with a group of first hole groups 112, that is, each air flow channel 111 is provided with a group of first hole groups 112. In this embodiment, due to the design of the plurality of air flow channels 111 and the plurality of groups of first holes 112 on the air cooling plate 11, air in the air flow channels 111 can be fully contacted with the hydrophilic membrane assembly 13, so that the cooling efficiency of the hydrophilic membrane assembly 13 on the air in the air flow channels 111 is improved.
In one embodiment, as shown in fig. 5, the first hole set 112 includes a plurality of first through holes 1121 that are spaced apart and all communicated with the air flow channel 111, and the end surface of the hydrophilic membrane module 13, which is far from the liquid cooling plate 12, is sealed on all the first through holes 1121; it is understood that the hydrophilic membrane module 13 is attached to the air cooling plate 11, so that the hydrophilic membrane module 13 can function to seal all the first through holes 1121.
The opening area of the first through holes 1121 in the same group of the first hole group 112 gradually increases in the direction of the flow of the wind in the wind flow path 111. It will be appreciated that the opening of the first through hole 1121 is gradually increased along the direction of the flow of the wind in the wind channel 111, that is, the opening of the first through hole 1121 at the front end is smaller and the opening of the first through hole 1121 at the rear end is larger.
Specifically, the unit cells 2 are mounted on the upper surface of the air cooling plate 11, and along the direction of the air flow in the air flow channel 111, the temperature of the air at the rear end gradually increases as the heat of the unit cells 2 absorbed by the air gradually increases; in this embodiment, the opening of the first through hole 1121 at the rear end is gradually increased, and the air at the rear end of the air flow channel 111 can fully contact the hydrophilic membrane assembly 13 through the first through hole 1121 with a larger opening, so that the cooling efficiency of the hydrophilic membrane assembly 13 on the air in the air flow channel 111 at the rear end is higher, and the air at the rear end of the air flow channel 111 can absorb more heat than the air at the front end, thereby ensuring that the air cooling plate 11 can play a role in uniform temperature heat dissipation of the single battery 2.
In one embodiment, as shown in fig. 5, the distance between two adjacent first through holes 1121 in the same group of first holes 112 gradually decreases along the airflow direction in the airflow channel 111. As will be appreciated, the distance between the front end adjacent two first through holes 1121 is larger, and the distance between the rear end adjacent two first through holes 1121 is smaller; that is, the first through holes 1121 at the front end are sparse, and the first through holes 1121 at the rear end are dense.
Specifically, the unit cells 2 are mounted on the upper surface of the air cooling plate 11, and the temperature of the air at the rear end gradually increases as the heat of the unit cells 2 absorbed by the air increases along the direction in which the air flows in the air flow passage 111; in this embodiment, the openings of the first through holes 1121 at the rear end are gradually increased, and the first through holes 1121 at the rear end are also denser, so that the air in the rear end of the air flow channel 111 can fully contact the hydrophilic membrane module 13 through the first through holes 1121 with larger and denser openings, so that the air in the rear end of the air flow channel 111 can absorb more heat than the air in the front end, and the air cooling plate 11 is ensured to have the technical effect of uniform temperature heat dissipation on the single battery 2.
In one embodiment, as shown in fig. 6 and 7, the liquid flow channel 121 includes a liquid inlet flow channel 1211, a liquid outlet flow channel 1212, and a plurality of cooling flow channels 1213 arranged in parallel at intervals, wherein opposite ends of all the cooling flow channels 1213 are respectively communicated with the liquid inlet flow channel 1211 and the liquid outlet flow channel 1212; preferably, the liquid inlet channel 1211 is parallel to the liquid outlet channel 1212, and the liquid inlet channel 1211 is perpendicular to the cooling channel 1213; that is, the liquid inlet channel 1211 and the liquid outlet channel 1212 are each provided in the liquid cooling plate 12 in the width direction, and the plurality of cooling channels 1213 are each provided in the liquid cooling plate 12 in the length direction.
The liquid cooling plate 12 is provided with a plurality of second hole groups 122 which are distributed in parallel at intervals, and each cooling flow passage 1213 is correspondingly communicated with one group of second hole groups 122. It can be appreciated that the liquid cooling plate 12 is provided with a plurality of parallel and spaced-apart second hole groups 122, and a plurality of second through holes 1221 in the second hole groups 122 are spaced-apart along the length direction of the cooling flow channels 1213, and each of the cooling flow channels 1213 is correspondingly provided with a set of the second hole groups 122, that is, each of the cooling flow channels 1213 is provided with a set of the second hole groups 122. In this embodiment, due to the design of the plurality of cooling flow channels 1213 and the plurality of second hole groups 122 on the liquid cooling plate 12, the cooling liquid in the cooling flow channels 1213 can fully contact with the hydrophilic membrane assembly 13, so that the content of the cooling liquid entering the hydrophilic membrane assembly 13 in the liquid flow channels 121 is increased, the evaporation amount of the cooling liquid in the hydrophilic membrane assembly 13 is increased, and the heat exchange efficiency of the cooling liquid in the hydrophilic membrane assembly 13 and the air in the air flow channel 111 is further improved.
In one embodiment, as shown in fig. 1, the second hole set 122 includes a plurality of second through holes 1221 that are spaced apart and all communicate with the cooling channels 1213, and the end surface of the hydrophilic membrane module 13, which is far from the air cooling plate 11, is sealed on all the second through holes 1221; the opening area of the second through hole 1221 is gradually increased along the flow direction of the cooling liquid in the cooling flow passage 1213. As can be appreciated, the lower surface of the hydrophilic membrane module 13 is attached to the liquid cooling plate 12, so that the hydrophilic membrane module 13 can function to seal all the second through holes 1221; the opening of the second through hole 1221 is gradually increased along the direction in which the cooling liquid flows in the cooling flow passage 1213, that is, the opening of the second through hole 1221 at the front end is smaller and the opening of the second through hole 1221 at the rear end is larger.
Specifically, the unit cell 2 is mounted on the upper surface of the air cooling plate 11, the hydrophilic membrane module 13 is mounted between the lower surface of the air cooling plate 11 and the upper surface of the liquid cooling plate 12, and along the direction of the air flow in the air flow channel 111, the temperature of the air at the rear end gradually increases as the heat of the unit cell 2 absorbed by the air gradually increases; in this embodiment, the opening of the second through hole 1221 at the rear end is gradually increased, and the cooling liquid at the rear end of the cooling flow channel 1213 may infiltrate the hydrophilic membrane assembly 13 through the second through hole 1221 with a larger opening, so that the evaporation amount of the cooling liquid at the rear end of the hydrophilic membrane assembly 13 is larger, the cooling efficiency of the hydrophilic membrane assembly 13 on the air in the air flow channel 111 at the rear end is higher, and the air cooling plate 11 is ensured to have the technical effect of uniform temperature heat dissipation on the single battery 2.
In one embodiment, as shown in fig. 6, the distance between two adjacent second through holes 1221 in the same group of second holes 122 gradually decreases along the flow direction of the cooling liquid in the cooling flow channel 1213. As can be appreciated, the interval between the front-end adjacent two second through holes 1221 is larger, and the interval between the rear-end adjacent two second through holes 1221 is smaller; that is, the second through holes 1221 at the front end are relatively sparse, and the second through holes 1221 at the rear end are relatively dense.
Specifically, the unit cell 2 is mounted on the upper surface of the air cooling plate 11, the hydrophilic membrane module 13 is mounted between the lower surface of the air cooling plate 11 and the upper surface of the liquid cooling plate 12, and along the direction of the air flowing in the air flow channel 111, the temperature of the air at the rear end gradually increases as the heat of the unit cell 2 absorbed by the air gradually increases; in this embodiment, the openings of the second through holes 1221 at the rear end are gradually increased, and the second through holes 1221 at the rear end are denser, and the cooling liquid at the rear end of the cooling flow channel 1213 can infiltrate the hydrophilic membrane assembly 13 through the second through holes 1221 with larger openings and denser, so that the evaporation amount of the cooling liquid at the rear end of the hydrophilic membrane assembly 13 is larger, and the cooling efficiency of the hydrophilic membrane assembly 13 on the air in the air flow channel 111 at the rear end is higher, so that the air cooling plate 11 can achieve the technical effect of uniform temperature heat dissipation on the single battery 2.
Further, along the direction in which the air flows in the air flow channel 111, the openings of the first through holes 1121 at the rear end are gradually increased, and the first through holes 1121 at the rear end are also denser, and the openings of the second through holes 1221 at the rear end are gradually increased, and the second through holes 1221 at the rear end are also denser; in the present utility model, the cooling liquid at the rear end of the cooling flow channel 1213 may enter the hydrophilic membrane module 13 through the second through holes 1221 with larger and denser openings, and the rear end of the hydrophilic membrane module 13 may absorb more heat in the air flow channel 111 through the second through holes 1221 with larger and denser openings (i.e., the evaporation and heat absorption capacity of the hydrophilic membrane module 13 to the rear end of the air flow channel 111 is more), so that the cooling efficiency of the hydrophilic membrane module 13 to the air in the rear end air flow channel 111 is higher, and the technical effect that the air cooling plate 11 can perform uniform temperature heat dissipation on the unit cells 2 is further ensured.
In one embodiment, as shown in fig. 6 and 8, the end surface of the liquid cooling plate 12 facing the air cooling plate 11 is provided with a plurality of grooves 123 distributed in parallel at intervals, and the second hole group 122 is disposed on the inner wall of the groove 123; as can be appreciated, the grooves 123 are disposed on the upper surface of the liquid cooling plate 12, and a plurality of second through holes 1221 are disposed on the bottom wall of each groove 123 at intervals.
The hydrophilic membrane module 13 includes a plurality of hydrophilic membranes 131 installed in all the grooves 123. It will be appreciated that each of the grooves 123 has a corresponding piece of the hydrophilic film 131 mounted therein, and that a lower surface of a piece of the first hydrophilic film 131 may function to seal a set of the second hole sets 122, and an upper surface may function to seal a set of the first hole sets 112. In this embodiment, the hydrophilic membrane 131 may be pressed in the groove 123 by the air cooling plate 11, so as to ensure stability of sealing the hydrophilic membrane group between the air cooling plate 11 and the liquid cooling plate 12.
Further, the wind flow channels 111, the hydrophilic mold 131 and the cooling flow channels 1213 are arranged in one-to-one correspondence; that is, one piece of the hydrophilic film 131 is correspondingly installed between one of the wind flow channels 111 and one of the cooling flow channels 1213; one of the wind flow passages 111 communicates with the upper surface of one of the hydrophilic films 131 through one of the first hole groups 112, and one of the cooling flow passages 1213 communicates with the lower surface of one of the hydrophilic films 131 through one of the second hole groups 122; that is, one of the hydrophilic films 131 is sealed between one of the first hole groups 112 and one of the second hole groups 122.
As shown in fig. 9, another embodiment of the present utility model further provides a battery assembly, which includes a single battery 2 and the above-mentioned uniform-temperature heat dissipation device 1, where the single battery 2 is installed on an end surface of the air cooling plate 11 facing away from the hydrophilic membrane assembly 13, or on an end surface of the liquid cooling plate 12 facing away from the hydrophilic membrane assembly 13. It may be appreciated that, when the unit battery 2 is mounted on the end surface of the air cooling plate 11 facing away from the hydrophilic membrane assembly 13, the air cooling of the unit battery 2 by the air cooling plate 11 is mainly performed, and the cooling liquid in the liquid cooling plate 12 cools the air in the air cooling plate 11 through the hydrophilic membrane assembly 13, that is, the liquid cooling of the cooling plate 12 is used as an auxiliary. When the unit battery 2 is mounted on the end surface of the liquid cooling plate 12 facing away from the hydrophilic membrane assembly 13, the air cooling of the unit battery 2 by the liquid cooling plate 12 is mainly performed, and the cold air in the air cooling plate 11 cools the cooling liquid in the liquid cooling plate 12 through the hydrophilic membrane assembly 13, that is, the air cooling of the air cooling plate 11 is used as an auxiliary.
The utility model also provides an electric device, which comprises the battery assembly. It will be appreciated that the electrical consumer devices include, but are not limited to, vehicles, energy storage cabinets, and the like.
The above embodiments of the heat dissipation device, the battery assembly and the electric device are merely examples of the present utility model, and are not intended to limit the present utility model, but any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (11)
1. The uniform-temperature heat dissipation device is characterized by comprising an air cooling plate, a liquid cooling plate and a hydrophilic membrane assembly arranged between the air cooling plate and the liquid cooling plate;
the air cooling plate is provided with an air flow channel through which air flows and a first hole group communicated with the air flow channel, the liquid cooling plate is provided with a liquid flow channel through which cooling liquid flows and a second hole group communicated with the liquid flow channel, and air in the first hole group exchanges heat with cooling liquid in the second hole group through the hydrophilic membrane component.
2. The heat dissipation device according to claim 1, wherein the air cooling plate is provided with a plurality of parallel air flow passages which are distributed at intervals, and each air flow passage is correspondingly communicated with one group of the first hole groups.
3. The heat sink according to claim 2, wherein the first hole group includes a plurality of first through holes which are distributed at intervals and are all communicated with the air flow passage, and the end face of the hydrophilic membrane component, which is far away from the liquid cooling plate, is sealed on all the first through holes;
and along the airflow direction in the airflow channel, the opening area of the first through holes in the same group of first hole groups is gradually increased.
4. A heat sink according to claim 3, wherein the distance between adjacent two of the first through holes in the same group of the first holes is gradually reduced along the flow direction of the air in the air flow passage.
5. The uniform temperature heat dissipation device according to claim 1, wherein the liquid flow channel comprises a liquid inlet flow channel, a liquid outlet flow channel and a plurality of cooling flow channels arranged in parallel at intervals, and opposite ends of all the cooling flow channels are respectively communicated with the liquid inlet flow channel and the liquid outlet flow channel;
the liquid cooling plate is provided with a plurality of groups of second hole groups which are distributed in parallel at intervals, and each cooling flow passage is correspondingly communicated with one group of second hole groups.
6. The heat sink according to claim 5, wherein the second hole group includes a plurality of second through holes which are distributed at intervals and are all communicated with the cooling flow passage, and the end face of the hydrophilic membrane component, which is far away from the air cooling plate, is sealed on all the second through holes; and the opening area of the second through hole is gradually increased along the flowing direction of the cooling liquid in the cooling flow channel.
7. The heat sink of claim 6, wherein the distance between two adjacent second through holes in the second hole group in the same group is gradually reduced along the flow direction of the cooling liquid in the cooling flow passage.
8. The uniform-temperature heat dissipation device according to claim 5, wherein a plurality of grooves which are distributed in parallel at intervals are formed in the end face of the liquid cooling plate facing the air cooling plate, and the second hole group is formed in the inner wall of each groove;
the hydrophilic membrane assembly includes a plurality of hydrophilic membranes mounted in all of the grooves.
9. The heat sink of claim 5, wherein the liquid inlet channel is parallel to the liquid outlet channel, and the liquid inlet channel is perpendicular to the cooling channel.
10. A battery assembly comprising a single battery and the uniform temperature heat dissipation device according to any one of claims 1 to 9; the monomer battery is installed on the end face of the air cooling plate, which is away from the hydrophilic membrane component, or on the end face of the liquid cooling plate, which is away from the hydrophilic membrane component.
11. An electrical device comprising the battery assembly of claim 10.
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| CN202322168400.0U CN220627936U (en) | 2023-08-11 | 2023-08-11 | Uniform temperature heat dissipation device, battery assembly and electric device |
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| CN202322168400.0U CN220627936U (en) | 2023-08-11 | 2023-08-11 | Uniform temperature heat dissipation device, battery assembly and electric device |
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