CN115279111A - Liquid cooling plate and heat dissipation equipment - Google Patents
Liquid cooling plate and heat dissipation equipment Download PDFInfo
- Publication number
- CN115279111A CN115279111A CN202110484388.7A CN202110484388A CN115279111A CN 115279111 A CN115279111 A CN 115279111A CN 202110484388 A CN202110484388 A CN 202110484388A CN 115279111 A CN115279111 A CN 115279111A
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- 239000007788 liquid Substances 0.000 title claims abstract description 83
- 238000001816 cooling Methods 0.000 title claims abstract description 53
- 230000017525 heat dissipation Effects 0.000 title abstract description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 239000000110 cooling liquid Substances 0.000 abstract description 12
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009795 derivation Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20254—Cold plates transferring heat from heat source to coolant
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
Abstract
The invention discloses a liquid cooling plate and heat dissipation equipment, wherein the liquid cooling plate comprises an inlet, an outlet and a heat exchange flow channel communicated with the inlet and the outlet, the heat exchange flow channel comprises a plurality of channel units which are sequentially communicated, and the through-flow cross-sectional areas of at least two channel units are sequentially reduced in the liquid flow direction of the heat exchange flow channel. When the liquid cooling radiator is used, the temperature of the cooling liquid from the inlet to the outlet is gradually increased, and the at least two channel units with the sequentially reduced flow cross-sectional areas are designed in the scheme along the liquid flow direction, so that the flow of the cooling liquid with the single flow cross-section in the channel units is sequentially increased along the liquid flow direction, the heat exchange capacities of the channel units tend to be consistent, and the temperature uniformity of the whole liquid cooling radiator is improved. The invention can control the temperature difference among all the devices within a smaller range while meeting the requirements of the junction temperature of the devices, thereby ensuring the temperature uniformity of the system.
Description
Technical Field
The invention relates to the technical field of heat dissipation devices, in particular to a liquid cooling plate and heat dissipation equipment.
Background
The temperature of the equipment components is one of the main factors influencing the performance and reliability of the power electronic equipment, when the working temperature exceeds a certain range, the performance of the equipment components is reduced along with the increase of the junction temperature, the failure rate and the junction temperature form an exponential relation, and the service life of the equipment components is even influenced when the equipment components are overheated. Meanwhile, for a plurality of power electronic devices in the same system, such as semiconductor lasers, IGBTs, etc., the temperature uniformity among the devices may affect the stability and the service life of the whole system, and therefore, it is very important to control the temperature difference among the devices of the whole system, so as to improve the temperature uniformity among the devices.
Air cooling is widely applied to electronic heat dissipation due to the characteristics of simple structure, relatively low energy consumption and the like, but along with the continuous increase of the heating power of electronic equipment, the heat dissipation capability of air cooling is limited due to the limitation of the properties of air, and the heat dissipation requirement of high-power electronic equipment cannot be met. Compared with the prior art, liquid cooling has high heat conductivity and specific heat capacity, strong heat dissipation capacity, high response speed and high reliability, can meet the heat dissipation requirement of high-power electronic equipment, has large market application potential, and becomes one of the mainstream heat dissipation forms in the electronic field.
For realizing excellent heat dissipation effect of liquid cooling, the basic requirements of the liquid cooling radiator applied to the laser transmitter and other equipment are as follows: (1) The heat dissipation device has higher heat dissipation efficiency so as to take away the redundant heat in time and avoid overheating of equipment; (2) An accurate heat dissipation design is required to control the temperature difference to ensure temperature uniformity between devices. Therefore, how to simultaneously ensure the absolute heat dissipation capacity of the liquid cooling system and the temperature difference of the electronic equipment within a reasonable and controllable range is a major research focus of the current liquid cooling radiator.
At present, in practical application, considering a processing technology and cost, common flow channels of a liquid cooling radiator mainly include a serial snake-shaped channel, a parallel cold-hot cross channel, a parallel U-shaped channel and the like. However, the flow path of the conventional liquid-cooled heat sink is not suitable for controlling the temperature difference between the devices in the system.
Therefore, how to control the temperature difference between the devices in the same system to a small range is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a liquid cooling plate, which can control the temperature difference between devices within a small range while meeting the requirement of the junction temperature of the devices, and ensure the temperature uniformity of the system. Another object of the present invention is to provide a heat dissipating apparatus comprising the above liquid-cooled panel.
In order to achieve the purpose, the invention provides the following technical scheme:
a liquid cooling plate comprises an inlet, an outlet and a heat exchange runner communicated with the inlet and the outlet, wherein the heat exchange runner comprises a plurality of channel units which are communicated in sequence, and the flow cross-sectional areas of at least two channel units are reduced in sequence in the liquid flow direction of the heat exchange runner.
Preferably, in the second to the last channel units in the liquid flow direction of the heat exchange flow channel, the flow cross-sectional area of any one of the channel units is smaller than or equal to that of the upstream adjacent channel unit.
Preferably, each of the channel units includes one sub-channel or a plurality of sub-channels arranged in parallel.
Preferably, the flow cross-sectional areas of the sub-channels are equal, and the number of the sub-channels of at least two of the channel units decreases in the flow direction along the heat exchange flow channel.
Preferably, in the second to the last channel units in the flow direction of the heat exchange flow channel, the number of the sub-channels of any one of the channel units is less than or equal to the number of the sub-channels of the upstream adjacent channel unit.
Preferably, a partition is disposed between adjacent sub-channels within the same channel unit.
Preferably, a plurality of heat exchange fins are arranged in the sub-channel.
Preferably, the density of the heat exchange fins in at least two of the channel units increases sequentially in the liquid flow direction along the heat exchange flow channel.
Preferably, in the second to the last channel units in the liquid flow direction of the heat exchange flow channel, the density of the heat exchange fins in any one of the channel units is equal to or greater than the density of the heat exchange fins in the upstream adjacent channel unit.
Preferably, at least one of the channel units is provided with an inlet flow-dividing channel and an outlet flow-converging channel, the inlet flow-dividing channel is communicated with the inlet of the sub-channel, and the outlet flow-converging channel is communicated with the outlet of the sub-channel.
Preferably, the inlet distribution channel is communicated with a plurality of sub-channels, the plurality of sub-channels are sequentially arranged in a direction away from the inlet of the inlet distribution channel, and the flow cross-sectional areas of the inlet distribution channel corresponding to the inlets of the plurality of sub-channels are sequentially reduced in the arrangement direction of the plurality of sub-channels.
Preferably, a wall surface of the inlet branch channel on a side facing away from the inlets of the sub-channels gradually approaches to the inlet side of the sub-channels in the arrangement direction of the plurality of sub-channels.
Preferably, the longitudinal section of the inlet flow-dividing channel is trapezoidal or triangular.
Preferably, the flow cross-sectional area of the outlet collecting channel is uniform in the direction of the liquid flow.
The liquid cooling plate provided by the invention comprises an inlet, an outlet and a heat exchange flow channel communicated with the inlet and the outlet, wherein the heat exchange flow channel comprises a plurality of channel units which are sequentially communicated, and the through-flow cross-sectional areas of at least two channel units are sequentially reduced in the liquid flow direction of the heat exchange flow channel. When the liquid cooling radiator is used, the temperature of the cooling liquid from the inlet to the outlet is gradually increased, and the at least two channel units with the sequentially reduced through-flow cross-sectional areas are designed in the scheme along the liquid flow direction, so that the flow of the cooling liquid per through-flow cross section in the channel units is sequentially increased along the liquid flow direction, the heat exchange capacities of the channel units tend to be consistent, and the temperature uniformity of the whole liquid cooling radiator is improved. The invention can control the temperature difference among all the devices within a smaller range while meeting the requirements of the junction temperature of the devices, thereby ensuring the temperature uniformity of the system.
The invention also provides a heat dissipation device comprising the liquid cooling plate, and the derivation process of the beneficial effect of the heat dissipation device is similar to the derivation process of the beneficial effect brought by the liquid cooling plate, so the description is omitted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a liquid-cooled panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bottom plate of a liquid-cooled panel in an embodiment of the present invention;
FIG. 3 is a top view of a bottom plate structure of a liquid cooled panel in an embodiment of the present invention.
The meaning of the various reference numerals in figures 1 to 3 is as follows:
1-heating equipment, 2-upper cover plate, 3-inlet, 4-outlet, 5-bottom plate, 6-heat exchange fin, 7-separating part, 8-channel unit, 9-inlet shunting channel, 10-outlet converging channel and 11-sub-channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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 making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 3, fig. 1 is a schematic view illustrating a usage state of a liquid cooling plate according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a bottom plate structure of a liquid cooling plate according to an embodiment of the present invention; FIG. 3 is a top view of a bottom plate structure of a liquid cooling plate in an embodiment of the present invention.
The invention provides a liquid cooling plate which comprises an inlet 3, an outlet 4 and a heat exchange flow channel communicated with the inlet 3 and the outlet 4, wherein the heat exchange flow channel comprises a plurality of channel units 8 which are sequentially communicated, and the through-flow cross-sectional areas of at least two channel units 8 are sequentially reduced in the liquid flow direction of the heat exchange flow channel. It should be noted that, as shown in fig. 1, the liquid cooling plate body in the present invention includes an upper cover plate 2 and a bottom plate 5, and the heat exchange flow channel may be formed by a groove processed on the upper cover plate 2 and/or the bottom plate 5, preferably, the heat exchange flow channel is processed on the bottom plate 5, and then the upper cover plate 2 is used to cover the bottom plate 5 in a sealing manner, so as to form the liquid cooling plate.
When the heat radiator is used, each heating device 1 is arranged in contact with the surface of the liquid cooling plate, the temperature of the cooling liquid from the inlet 3 to the outlet 4 is gradually increased, and at least two channel units 8 with sequentially reduced through-flow cross-sectional areas are designed in the scheme along the liquid flow direction, so that the flow of the cooling liquid with the single through-flow cross-section in the channel units 8 is sequentially increased along the liquid flow direction, the heat exchange capacities of the channel units 8 tend to be consistent, and the temperature uniformity of the whole liquid cooling radiator is improved. The invention can control the temperature difference among the heating devices 1 in a smaller range while meeting the requirements of the junction temperature of the devices, thereby ensuring the temperature uniformity of the system.
Preferably, in the second to last channel units 8 in the liquid flow direction of the heat exchange flow passage, the flow cross-sectional area of any one channel unit 8 is equal to or smaller than the flow cross-sectional area of the upstream adjacent channel unit 8. So set up for the through-flow cross sectional area of each passage unit 8 on the whole liquid cooling plate is along predetermineeing the law and reducing gradually on the liquid flow direction, thereby makes the difference in temperature between each equipment 1 that generates heat on the liquid cooling plate further reduce.
Preferably, each channel unit 8 comprises one sub-channel 11 or a plurality of sub-channels 11 arranged in parallel. With this arrangement, the respective sub-channels 11 can further guide and distribute the cooling liquid when the cooling liquid flows through the channel unit 8.
It should be noted that each of the sub-passages 11 in each of the passage units 8 or each of the sub-passages 11 in different passage units 8 may be designed to have a structure with an equal flow cross-sectional area, or may be designed to have a structure with a different flow cross-sectional area. In a preferred embodiment, the flow cross-sectional area of each sub-channel 11 is equal, and the number of sub-channels 11 of at least two channel units 8 decreases in the direction of flow along the heat exchange flow channel. Specifically, the present solution implements the differential design of the through-flow cross-sectional areas of different channel units 8 by designing channel units 8 having different numbers of sub-channels 11.
Further preferably, in the second to the last channel unit 8 in the flow direction of the heat exchange flow channel, the number of the sub-channels 11 of any one channel unit 8 is less than or equal to the number of the sub-channels 11 of the upstream adjacent channel unit 8. So set up for the through-flow cross sectional area of each channel unit 8 on the whole liquid cooling board reduces according to predetermineeing the rule gradually along the liquid flow direction, thereby makes the difference in temperature between each equipment 1 that generates heat on the liquid cooling board further reduce.
Preferably, a partition 7 is arranged between adjacent sub-channels 11 within the same channel unit 8. In particular, the partition 7 can be designed as a partition structure or a spacer structure or the like. The lengths of the respective sub-passages 11 in the present invention may be equal or different, and the entirety of the sub-passages 11 may be designed to extend in a linear direction or a curved direction.
Further preferably, a plurality of heat exchange fins 6 are arranged in the sub-channel 11. Specifically, the heat exchange fins 6 extend along the liquid flow direction, and heat exchange gaps are formed among the heat exchange fins 6, so that the heat exchange area in each sub-channel 11 can be further increased, and the heat exchange capacity of the whole liquid cooling plate is further improved.
Preferably, the density of the heat exchange fins 6 in at least two channel units 8 is sequentially increased in the liquid flow direction along the heat exchange flow channel. Wherein the density of the heat exchange fins 6 refers to the number of the heat exchange fins 6 per unit flow cross section in the channel unit 8. Because the temperature can rise gradually after the cooling liquid carries out the heat transfer in a plurality of passageway units 8 of upper reaches, also can have sufficient heat transfer ability in order to guarantee the passageway unit 8 of low reaches, this scheme has increased the heat transfer fin density in the passageway unit 8 of low reaches along the liquid flow direction of heat transfer runner to strengthen the heat transfer coefficient of low reaches passageway unit 8, improve the heat-sinking capability, improved the temperature homogeneity of whole liquid cooling board.
Preferably, in the second to the last channel unit 8 in the liquid flow direction of the heat exchange flow channel, the density of the heat exchange fins 6 in any one channel unit 8 is equal to or greater than the density of the heat exchange fins 6 in the upstream adjacent channel unit 8. So set up for the density of the heat transfer fin 6 of each channel unit 8 on the whole liquid cooling plate is according to predetermineeing the law crescent along the liquid flow direction, thereby has further improved the temperature homogeneity of whole liquid cooling plate, makes the difference in temperature between each equipment for generating heat 1 on the liquid cooling plate further reduce.
Preferably, at least one channel unit 8 is provided with an inlet branch channel 9 and an outlet confluence channel 10, the inlet branch channel 9 communicating with the inlet of the sub-channel 11, and the outlet confluence channel 10 communicating with the outlet of the sub-channel 11. Specifically, in the case where the channel unit 8 is provided with a plurality of sub-channels 11 connected in parallel, or the channel unit 8 is provided with only one sub-channel 11 and the inlet and outlet of the sub-channel 11 are large in size, the coolant can be distributed into each sub-channel 11 or each position of a single sub-channel 11 by the inlet branch channel 9 when flowing from the upstream channel unit 8 into the channel unit 8, and accordingly, the coolant can be collected by the outlet branch channel 10 after flowing through the channel unit 8, so as to flow into the next adjacent channel unit 8.
Preferably, the inlet branch passage 9 is communicated with a plurality of sub-passages 11, the plurality of sub-passages 11 are sequentially arranged in a direction away from the inlet of the inlet branch passage 9, and the flow cross-sectional areas of the inlet branch passages 9 corresponding to the inlets of the plurality of sub-passages 11 are sequentially reduced in the arrangement direction along the plurality of sub-passages 11. So set up, can utilize the import reposition of redundant personnel passageway 9 that the through-flow cross-section reduces gradually to make the coolant liquid get into each subchannel 11 simultaneously, guarantee simultaneously that the flow in each subchannel 11 is unanimous, realize evenly shunting, the equipment difference in temperature that each parallelly connected subchannel 11 of effective control corresponds.
Preferably, the wall surface of the inlet branch channel 9 on the side facing away from the inlet of the sub-channel 11 gradually gets closer to the inlet side of the sub-channel 11 in the arrangement direction of the plurality of sub-channels 11. Specifically, the inlets of the sub-channels 11 may be arranged in parallel, and the wall surface of the inlet branch channel 9 on the side away from the inlets of the sub-channels 11 is designed to be inclined gradually towards the side close to the inlets of the sub-channels 11 along the arrangement direction of the plurality of sub-channels 11; in the scheme, the wall surface of the side, away from the inlets of the sub-channels 11, of the inlet diversion channel 9 can be designed as a straight-side wall surface parallel to the side of the liquid cooling plate, and meanwhile, the inlets of the sub-channels 11 are designed to be inclined towards the direction close to the straight-side wall surface gradually along the arrangement direction of the sub-channels 11. According to the scheme, through the structural design, the width of the through-flow section of the inlet shunting passage 9 is gradually reduced along the arrangement direction of the plurality of sub-passages 11, and the purpose of uniformly distributing the cooling liquid to the plurality of sub-passages 11 is further achieved.
Preferably, the inlet distribution channel 9 has a trapezoidal or triangular longitudinal cross-section, as shown in fig. 2 and 3. Of course, the wall surface of the inlet branch passage 9 on the side away from the inlet of the sub-passage 11 may also be designed to be an arc surface structure, so that the longitudinal section of the inlet branch passage 9 may be in an arc shape or other irregular shapes, and details are not described herein.
It should be noted that the inlet distribution channel 9 may also be designed into other structural shapes, for example, as shown in fig. 2 and fig. 3, the heat exchange channel designed on the liquid cooling plate includes two rows of upper and lower channel portions, the communication structure of the two channel units 8 at the rightmost side of the liquid cooling plate is the joint of the two rows of channel portions, and because the inlet of the right end channel unit 8 located in the lower row is arranged opposite to the outlet of the right end channel unit 8 located in the upper row, the flow of the cooling liquid between the two channel units 8 is not blocked, and the flow rate flowing into each sub-channel 11 is not balanced by the distribution channel distribution, so the inlet distribution channel 9 of the channel unit 8 located at the right end of the lower row is not designed into the above-mentioned trapezoidal or triangular structure.
Preferably, the flow cross-sectional area of the outlet collecting channel 10 remains uniform in the direction of the liquid flow. In particular, the outlet collecting duct 10 may be designed as a duct structure with a rectangular longitudinal section, i.e. the distance between the wall of the outlet collecting duct 10 on the side facing away from the outlets of the sub-ducts 11 and the outlet of each sub-duct 11 is kept constant, as shown in fig. 3.
It should be noted that the liquid cooling plate provided by the present invention may design the positions of the inlet and the outlet according to the number of the heat generating devices and the flow rate of the cooling liquid, for example, the inlet 3 and the outlet 4 are both located on the same side of the liquid cooling plate (as shown in fig. 1), or the inlet 3 and the outlet 4 are respectively located on two adjacent sides of the liquid cooling plate, or the inlet 3 and the outlet 4 are respectively located on two opposite sides of the liquid cooling plate.
The invention also provides a heat dissipation device comprising the liquid cooling plate, and the derivation process of the beneficial effect of the heat dissipation device is similar to the derivation process of the beneficial effect brought by the liquid cooling plate, so the description is omitted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (15)
1. The utility model provides a liquid cooling plate, includes import and export and intercommunication the import with the heat transfer runner of export, its characterized in that, the heat transfer runner includes a plurality of channel unit that communicate in proper order, follows in the liquid flow direction of heat transfer runner, at least two channel unit's through-flow cross sectional area reduces in proper order.
2. The liquid-cooled plate of claim 1, wherein the flow cross-sectional area of any one of the channel units in the second to last channel units in the flow direction of the heat exchange flow path is equal to or smaller than the flow cross-sectional area of the upstream adjacent channel unit.
3. A liquid-cooled plate according to claim 1 or 2, characterized in that each of said channel units comprises one sub-channel or a plurality of sub-channels arranged in parallel.
4. A liquid-cooled panel according to claim 3, wherein the flow cross-sectional area of each of the sub-channels is equal, and the number of sub-channels of at least two of the channel units decreases in the direction of flow along the heat exchange flow channel.
5. The liquid-cooled plate of claim 4, wherein the number of the sub-channels of any one of the channel units is equal to or less than the number of the sub-channels of the upstream adjacent channel unit in the second to last channel unit in the flow direction of the heat exchange flow channel.
6. The liquid cooling panel of claim 3, wherein a partition is disposed between adjacent sub-channels within the same channel unit.
7. The liquid cooling plate of claim 3, wherein a plurality of heat exchanging fins are provided in the sub-channels.
8. The liquid cooling plate of claim 7, wherein the density of the heat exchange fins in at least two of the channel units increases sequentially in a liquid flow direction along the heat exchange flow channel.
9. The liquid cooling plate as claimed in claim 8, wherein the density of the heat exchange fins in any one of the channel units is equal to or greater than the density of the heat exchange fins in the upstream adjacent channel unit in the second to last channel units in the flow direction of the heat exchange flow channel.
10. The liquid-cooled panel of claim 3, wherein at least one of the channel units is provided with an inlet branch channel communicating with the inlet of the sub-channel and an outlet confluence channel communicating with the outlet of the sub-channel.
11. The liquid-cooled plate of claim 10, wherein the inlet manifold channel is in communication with a plurality of the sub-channels, the plurality of sub-channels are sequentially arranged in a direction away from the inlet of the inlet manifold channel, and the flow cross-sectional areas of the inlet manifold channel at the inlets of the plurality of sub-channels decrease sequentially in the direction along the arrangement of the plurality of sub-channels.
12. The liquid cooled plate of claim 11, wherein a wall surface of the inlet manifold facing away from the inlet side of the sub-passages is gradually closer to the inlet side of the sub-passages in the direction of the arrangement of the plurality of sub-passages.
13. The liquid cooled plate of claim 12 wherein the inlet manifold has a trapezoidal or triangular longitudinal cross-section.
14. The liquid cooled plate of claim 10, wherein the flow cross-sectional area of the outlet manifold is uniform in the direction of liquid flow.
15. A heat sink apparatus comprising a liquid cooled plate as claimed in any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484388.7A CN115279111A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling plate and heat dissipation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110484388.7A CN115279111A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling plate and heat dissipation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN115279111A true CN115279111A (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110484388.7A Pending CN115279111A (en) | 2021-04-30 | 2021-04-30 | Liquid cooling plate and heat dissipation equipment |
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| Country | Link |
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| CN (1) | CN115279111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116568008A (en) * | 2023-05-31 | 2023-08-08 | 小米汽车科技有限公司 | Liquid cooling radiator, motor controller and vehicle |
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| CN207011178U (en) * | 2017-05-17 | 2018-02-13 | 苏州汇川联合动力系统有限公司 | Liquid cooling heat radiator and electric machine controller |
| CN109950656A (en) * | 2019-04-12 | 2019-06-28 | 北京交通大学 | A kind of asymmetric double process liquid cooling plate of curved end surface |
| CN110676981A (en) * | 2018-07-02 | 2020-01-10 | 大银微系统股份有限公司 | Cooling structure of rotary motor |
| CN215187996U (en) * | 2021-04-30 | 2021-12-14 | 深圳市英维克科技股份有限公司 | Liquid cooling plate and heat dissipation equipment |
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2021
- 2021-04-30 CN CN202110484388.7A patent/CN115279111A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101868854A (en) * | 2007-11-26 | 2010-10-20 | 株式会社丰田自动织机 | Liquid-cooled-type cooling device |
| CN206332136U (en) * | 2016-11-30 | 2017-07-14 | 宝沃汽车（中国）有限公司 | A kind of battery liquid cooling plate and battery bag and vehicle |
| CN207011178U (en) * | 2017-05-17 | 2018-02-13 | 苏州汇川联合动力系统有限公司 | Liquid cooling heat radiator and electric machine controller |
| CN110676981A (en) * | 2018-07-02 | 2020-01-10 | 大银微系统股份有限公司 | Cooling structure of rotary motor |
| CN109950656A (en) * | 2019-04-12 | 2019-06-28 | 北京交通大学 | A kind of asymmetric double process liquid cooling plate of curved end surface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116568008A (en) * | 2023-05-31 | 2023-08-08 | 小米汽车科技有限公司 | Liquid cooling radiator, motor controller and vehicle |
| CN116568008B (en) * | 2023-05-31 | 2024-02-23 | 小米汽车科技有限公司 | Liquid cooling radiator, motor controller and vehicle |
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