CN118765103B - A data center liquid cooling plate - Google Patents
A data center liquid cooling plate Download PDFInfo
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- CN118765103B CN118765103B CN202411255079.2A CN202411255079A CN118765103B CN 118765103 B CN118765103 B CN 118765103B CN 202411255079 A CN202411255079 A CN 202411255079A CN 118765103 B CN118765103 B CN 118765103B
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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
- H05K7/20709—Modifications to facilitate cooling, ventilating, or heating for server racks or cabinets; for data centers, e.g. 19-inch computer racks
- H05K7/20763—Liquid cooling without phase change
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Abstract
本发明公开了一种数据中心液冷板，该数据中心液冷板包括：设置在底部基板上的流量分配结构、微通道、综合结构和交错分流流道，流量分配结构、交错分流流道分别与进水口、出水口连通，微通道被分割成两个流道，入口处有对应的流量分配结构、出口处有对应的综合结构，位于流量分配结构和综合结构中间，综合结构位于微通道和交错分流流道中间；在底部基板温度升高后，流体流入流量分配结构形成均匀分配的流体并流入对应的流道，从对应的流道流出后，经综合结构的导流作用和扰流作用后流入交错分流流道，从出水口流出。本发明可以均匀分配流体流量、增强换热能力、降低流体流动阻力、增强流体扰流效果，从而可以实现数据中心内部设备的有效冷却。
The present invention discloses a data center liquid cooling plate, which includes: a flow distribution structure, a microchannel, a comprehensive structure and a staggered diversion flow channel arranged on a bottom substrate, the flow distribution structure and the staggered diversion flow channel are respectively connected with a water inlet and a water outlet, the microchannel is divided into two flow channels, a corresponding flow distribution structure is provided at the inlet, and a corresponding comprehensive structure is provided at the outlet, which is located between the flow distribution structure and the comprehensive structure, and the comprehensive structure is located between the microchannel and the staggered diversion flow channel; after the temperature of the bottom substrate rises, the fluid flows into the flow distribution structure to form a uniformly distributed fluid and flows into the corresponding flow channel, and after flowing out of the corresponding flow channel, it flows into the staggered diversion flow channel after the guiding effect and the turbulence effect of the comprehensive structure, and flows out of the water outlet. The present invention can evenly distribute the fluid flow, enhance the heat exchange capacity, reduce the fluid flow resistance, and enhance the fluid turbulence effect, thereby realizing effective cooling of the internal equipment of the data center.
Description
Technical Field
The invention relates to the technical field of data center cooling, in particular to a data center liquid cooling plate.
Background
The data center internally stores information technology equipment such as computing, storage, network and the like, so that a great amount of heat (equivalent to electronic elements with high heat flux) can be generated in the operation process of the data center. In order to maintain the normal operation of the internal equipment of the data center, the data center is usually cooled by adopting a liquid cooling plate cooling technology nowadays.
However, the existing liquid cooling plate structure for cooling a data center cold plate has the following problems: the length of the flow channel of the cold plate structure is relatively long, the flow resistance is relatively large, the temperature uniformity of the cold plate is poor, the turbulence effect of the turbulence structure in the flow channel is poor, and the heat transfer performance is weak. The existing liquid cooling plate structure with the characteristic of lower flow resistance and lacking a turbulence structure for enhancing heat transfer can enhance heat transfer performance, and the problem of heat dissipation can not be well solved for electronic elements with high heat flux density. That is, the conventional liquid-cooling plate cooling technique has the following problems: the problems of poor heat exchange performance, large fluid flow resistance, poor temperature uniformity of the liquid cooling plate, lack of turbulence structures for enhancing heat transfer and the like lead to the problem that the prior art cannot effectively solve the heat dissipation problem of electronic elements with high heat flux density, namely the problem that the internal equipment of a data center cannot effectively dissipate heat, and the normal operation of the equipment is affected.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the specification provides a data center liquid cooling plate to solve the problem that the existing liquid cooling plate cooling technology cannot effectively dissipate heat of equipment in a data center and affects normal operation of the equipment.
In order to solve the above technical problem, an embodiment of the present disclosure provides a data center liquid cooling plate, including:
The flow distribution structure is communicated with the water inlet, the staggered flow distribution flow channels are communicated with the water outlet, the micro-channel is divided into two flow channels, the two flow channels are positioned between the flow distribution structure and the comprehensive structure, the comprehensive structure is positioned between the micro-channel and the staggered flow distribution flow channels, the corresponding flow distribution structure is arranged at the inlet of the two flow channels, the corresponding comprehensive structure is arranged at the outlet of the two flow channels, and the turbulent flow structure is positioned between the plurality of flow guide structures; after the temperature of the bottom substrate is increased, the fluid flows into the flow distribution structure communicated with the water inlet to form evenly distributed fluid which flows into the corresponding flow channels, the evenly distributed fluid flows out of the corresponding flow channels and then flows through the corresponding comprehensive structure, and the evenly distributed fluid slowly flows into the staggered flow distribution channels after the flow guiding effect of the plurality of flow guiding structures and the flow disturbing effect of the flow disturbing structure, flows out of the water outlets communicated with the staggered flow distribution channels, so that the temperature of the bottom substrate is reduced.
In some embodiments, the water inlet and the water outlet are arranged on the upper cover, screw holes are further formed in the upper cover and the bottom substrate, the screw holes are provided with matched screws, and the screws are used for fixing the upper cover and the bottom substrate through the screw holes to form a data center liquid cooling plate.
In some embodiments, the water outlet comprises a first water outlet and a second water outlet, the first water outlet being located to the left of the water inlet, the second water outlet being located to the right of the water inlet, the diameter of the water inlet being greater than the diameters of the first and second water outlets.
In some embodiments, the flow distribution structure is a semi-cylindrical structure, including a first flow distribution structure, a second flow distribution structure, and a third flow distribution structure, the first flow distribution structure being above a water inlet, the second flow distribution structure being located on an upper left side of the first flow distribution structure, the third flow distribution structure being located on an upper right side of the first flow distribution structure, a radius of the first flow distribution structure being greater than a radius of the second and third flow distribution structures.
In some embodiments, the data center liquid cooling plate further comprises a separation rib wall, the microchannel is divided into two flow channels by the separation rib wall, the two flow channels are used for enabling the passing fluid to uniformly absorb the heat of the bottom substrate, the separation rib wall comprises a first separation rib wall, a second separation rib wall and a third separation rib wall, the microchannel is located between the second separation rib wall and the third separation rib wall, and the first separation rib wall is located in the middle of the microchannel.
In some embodiments, the microchannel is divided into two flow channels by the partition rib wall, comprising:
Dividing the microchannel into first flow channels based on the first and second partition rib walls;
The microchannel is divided into second flow channels based on the first and third partition rib walls.
In some embodiments, the integrated structure includes a first integrated structure and a second integrated structure, the first integrated structure is located at an outlet of the first flow channel, the second integrated structure is located at an outlet of the second flow channel, the first integrated structure includes a first flow guiding structure, a second flow guiding structure and a first turbulence structure located between the first flow guiding structure and the second flow guiding structure, the second integrated structure includes a third flow guiding structure, a fourth flow guiding structure and a second turbulence structure located between the third flow guiding structure and the fourth flow guiding structure, the first integrated structure is used for enabling fluid flowing out of the first flow channel to slowly flow into the staggered flow dividing channels on the wall side of the second partition rib after primary flow guiding, turbulence and secondary flow guiding, and the second integrated structure is used for enabling fluid flowing out of the second flow channel to slowly flow into the staggered flow dividing channels on the wall side of the third partition rib after primary flow guiding, turbulence and secondary flow guiding.
In some embodiments, the plurality of different ribs includes a drop-shaped rib and a triangular rib, the staggered flow diversion channel includes a bionic dragonfly wing channel for reducing flow resistance of the fluid and enhancing turbulence effect of the fluid, and the staggered flow diversion channel is located at two sides of the second partition rib wall and the third partition rib wall.
In some embodiments, the flowing out of the water outlet in communication with the staggered manifold comprises:
Flows out from the second water outlets communicated with the staggered flow diversion channels on the side of the second partition rib wall, and flows out from the first water outlets communicated with the staggered flow diversion channels on the side of the third partition rib wall.
In some embodiments, the fluid comprises liquid water.
The embodiment of the specification provides a data center liquid cooling plate, which comprises: the flow distribution structure is communicated with the water inlet, the staggered flow distribution flow channels are communicated with the water outlet, the micro-channel is divided into two flow channels, the two flow channels are positioned between the flow distribution structure and the comprehensive structure, the comprehensive structure is positioned between the micro-channel and the staggered flow distribution flow channels, the corresponding flow distribution structure is arranged at the inlet of the two flow channels, the corresponding comprehensive structure is arranged at the outlet of the two flow channels, and the turbulent flow structure is positioned between the plurality of flow guide structures; after the temperature of the bottom substrate is increased, the fluid flows into the flow distribution structure communicated with the water inlet to form evenly distributed fluid which flows into the corresponding flow channels, the evenly distributed fluid flows out of the corresponding flow channels and then flows through the corresponding comprehensive structure, and the evenly distributed fluid slowly flows into the staggered flow distribution channels after the flow guiding effect of the plurality of flow guiding structures and the flow disturbing effect of the flow disturbing structure, flows out of the water outlets communicated with the staggered flow distribution channels, so that the temperature of the bottom substrate is reduced. In the embodiment of the specification, the flow distribution structure is arranged in the liquid cooling plate, so that the flow of the fluid can be uniformly distributed, and the uniformly distributed fluid is formed. The micro-channel can enhance heat exchange capacity, and the micro-channel is divided into two flow channels, so that uniformly distributed fluid can uniformly absorb heat of the bottom substrate, and the temperature of the liquid cooling plate is uniformly distributed. The integrated structure with a plurality of flow guiding structures and flow disturbing structures can enhance heat exchange capacity and reduce fluid flow resistance. The staggered flow distribution channels can reduce the flow resistance and enhance the turbulence effect, and further improve the heat exchange and flow performance of the liquid cooling plate. And finally, fluid can flow out from a water outlet communicated with the staggered flow diversion channels, so that the process of cooling or cooling the bottom substrate is completed. The reduced temperature base substrate can transfer cooling energy to heat-generating equipment (such as high heat flux electronic components) to achieve effective cooling of the data center internal equipment.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic view of a bottom plate portion of a liquid cooling plate of a data center according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram illustrating the overall structure of a liquid cooling plate of a data center according to an embodiment of the present disclosure.
Reference numerals illustrate:
1. An upper cover; 1-1, a first screw; 1-2, a second screw; 1-3, a third screw; 1-4, fourth screw; 1-5, a first screw hole; 1-6, a second screw hole; 1-7, a third screw hole; 1-8, a fourth screw hole; 1-9 parts of water inlet, 1-10 parts of first water outlet; 1-11, a second water outlet; 2. a base substrate; 2-1, a fifth screw hole; 2-2, a sixth screw hole; 2-3, a seventh screw hole; 2-4, an eighth screw hole; 2-5, a first flow distribution structure; 2-6, a second flow distribution structure; 2-7, a third flow distribution structure; 2-8, micro-channels; 2-9, first partition rib walls; 2-10-1, a first flow guiding structure; 2-10-2, a first turbulence structure; 2-10-3, a second diversion structure; 2-11-1, a third diversion structure; 2-11-2, a second turbulence structure; 2-11-3, a fourth diversion structure; 2-12, second partition rib walls; 2-13, a third partition rib wall; 2-14, staggered flow-dividing channels (bionic dragonfly wing channels); 3. a heat generating electronic component.
Detailed Description
In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present specification, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present disclosure.
The data center internally stores information technology equipment such as computing, storage, network and the like, so that a great amount of heat (equivalent to electronic elements with high heat flux) can be generated in the operation process of the data center. In order to maintain normal operation of internal equipment of a data center, the data center is cooled by adopting a liquid cooling plate cooling technology nowadays, the cold plate structure is various, and the cold plate structure needs to be determined by combining heat exchange capability.
The existing liquid cooling plate structure for cooling a data center cold plate has the following problems: the length of the flow channel of the cold plate structure is relatively long, the flow resistance is relatively large, the temperature uniformity of the cold plate is poor, the turbulence effect of the turbulence structure in the flow channel is poor, and the heat transfer performance is weak. The existing liquid cooling plate structure with the characteristic of lower flow resistance and lacking a turbulence structure for enhancing heat transfer can enhance heat transfer performance, and the problem of heat dissipation can not be well solved for electronic elements with high heat flux density. That is, the conventional liquid-cooling plate cooling technique has the following problems: the problems of poor heat exchange performance, large fluid flow resistance, poor temperature uniformity of the liquid cooling plate, lack of turbulence structures for enhancing heat transfer and the like lead to the problem that the prior art cannot effectively solve the heat dissipation problem of electronic elements with high heat flux density, namely the problem that the internal equipment of a data center cannot effectively dissipate heat, and the normal operation of the equipment is affected.
Aiming at the problems and the specific reasons for generating the problems in the prior art, the application considers the introduction of the liquid cooling plate of the data center, can ensure that the microchannel liquid cooling plate has better comprehensive heat transfer performance, and the provided liquid cooling plate has better flow distribution and fluid turbulence effect, strengthens the heat transfer performance, can reduce the fluid flow resistance, ensures that the temperature of the cold plate is uniformly distributed, and finally can realize the effective cooling of equipment in the data center and ensure the normal operation of the equipment.
Based on the foregoing, an embodiment of the present disclosure provides a data center liquid cooling plate, including: the flow distribution structure is communicated with the water inlet, the staggered flow distribution flow channels are communicated with the water outlet, the micro-channel is divided into two flow channels, the two flow channels are positioned between the flow distribution structure and the comprehensive structure, the comprehensive structure is positioned between the micro-channel and the staggered flow distribution flow channels, the corresponding flow distribution structure is arranged at the inlet of the two flow channels, the corresponding comprehensive structure is arranged at the outlet of the two flow channels, and the turbulent flow structure is positioned between the plurality of flow guide structures; after the temperature of the bottom substrate is increased, the fluid flows into the flow distribution structure communicated with the water inlet to form evenly distributed fluid which flows into the corresponding flow channels, the evenly distributed fluid flows out of the corresponding flow channels and then flows through the corresponding comprehensive structure, and the evenly distributed fluid slowly flows into various different ribs of the staggered flow distribution channels after the flow guiding action of the plurality of flow guiding structures and the flow disturbing action of the flow disturbing structure, and flows out of the water outlets communicated with the staggered flow distribution channels, so that the temperature of the bottom substrate is reduced.
Referring to fig. 1, the bottom substrate 2 may be provided with flow distribution structures 2-5, 2-6, 2-7, micro channels 2-8, and integrated structures having a turbulence structure and a plurality of turbulence structures (for example, the integrated structures may include a first integrated structure, which may be referred to as a first integrated structure, an integrated structure having a first turbulence structure 2-10-1, a second turbulence structure 2-10-3, and a first turbulence structure 2-10-2, and the integrated structures may be referred to as a second integrated structure, which may be referred to as a second integrated structure) having a third turbulence structure 2-11-1, a fourth turbulence structure 2-11-3, and a second turbulence structure 2-11-2). Wherein the micro-channel 2-8 can be divided into two flow channels, the two flow channels are positioned in the middle of the flow distribution structures 2-5, 2-6 and 2-7 and the comprehensive structures 2-10-1, 2-10-2, 2-10-3, 2-11-1, 2-11-2 and 2-11-3, the comprehensive structures 2-10-1, 2-10-2, 2-10-3, 2-11-1, 2-11-2 and 2-11-3 are positioned in the middle of the micro-channel 2-8 and the staggered flow distribution channels, the inlets of the two flow channels are provided with corresponding flow distribution structures, and the outlets of the two flow channels are provided with corresponding comprehensive structures (for example, the two flow channels can comprise a first flow channel and a second flow channel, the inlet of the first flow channel is corresponding to the third flow distribution structure 2-7, and the inlet of the second flow distribution structure 2-6 is corresponding to the inlet of the second flow distribution structure). The first flow channel outlet corresponds to the first comprehensive structure, the second flow channel outlet corresponds to the second comprehensive structure, the turbulence structure is positioned among the plurality of flow guiding structures (for example, the first turbulence structure 2-10-2 is positioned among the first flow guiding structure 2-10-1 and the second flow guiding structure 2-10-3, and the second turbulence structure 2-11-2 is positioned among the third flow guiding structure 2-11-1 and the fourth flow guiding structure 2-11-3).
After the temperature of the bottom substrate 2 is raised, fluid can flow into the flow distribution structures 2-5, 2-6 and 2-7 communicated with the water inlet through the water inlet to form evenly distributed fluid and flow into corresponding flow passages, the evenly distributed fluid flows out of the corresponding flow passages and then flows through the corresponding comprehensive structures, the evenly distributed fluid slowly flows into the staggered flow distribution channels 2-14 after flowing through the diversion effect of the plurality of diversion structures and the turbulence effect of the turbulence structures, finally, the fluid can flow out of the water outlets communicated with the staggered flow distribution channels 2-14, and the temperature of the bottom substrate 2 can be evenly and effectively reduced in the above process, so that the aim of cooling equipment in a data center is finally achieved.
In some embodiments, the water inlet and the water outlet are disposed on the upper cover 1, screw holes are further disposed on the upper cover 1 and the bottom substrate 2, the screw holes are provided with matched screws, and the screws are used for fixing the upper cover 1 and the bottom substrate 2 through the screw holes to form a data center liquid cooling plate.
In some embodiments, the water outlets may include a first water outlet 1-10 and a second water outlet 1-11, the first water outlet 1-10 may be located at the left side of the water inlet 1-9, the second water outlet 1-11 may be located at the right side of the water inlet 1-9, and the diameter of the water inlet 1-9 may be larger than the diameters of the first water outlet 1-10 and the second water outlet 1-11.
In some embodiments, referring to fig. 2, fig. 2 is a schematic diagram illustrating the overall structure of a liquid cooling plate of a data center. The upper cover 1 can be provided with water inlets (or called cooling water inlets) 1-9, first water outlets (or called first cooling water outlets) 1-10 and second water outlets (or called second cooling water outlets) 1-11. The first water outlet 1-10 and the second water outlet 1-11 are collectively called as the water outlets, the first water outlet 1-10 can be positioned at the left side of the water inlet 1-9, and the second water outlet 1-11 can be positioned at the right side of the water inlet 1-9. The diameter of the water inlet 1-9 can be larger than the diameters of the first water outlet 1-10 and the second water outlet 1-11, and the diameters of the first water outlet 1-10 and the second water outlet 1-11 are the same. The water inlets 1-9 can be communicated with the flow distribution structure (particularly with the first flow distribution structure 2-5), and the first water outlets 1-10 and the second water outlets 1-11 can be communicated with the staggered flow diversion channels 2-14.
By providing the water inlet 1-9 with a diameter larger than the first water outlet 1-10 and the second water outlet 1-11, a large amount of fluid can flow in conveniently after the temperature of the bottom substrate 2 is raised, so that the heat of the bottom substrate 2 can be effectively absorbed. By arranging the first water outlets 1-10 and the second water outlets 1-11 to be communicated with the staggered flow diversion channels 2-14, all the fluid flowing through the staggered flow diversion channels 2-14 can flow out in time so as to finish the cooling or cooling work of the bottom substrate 2.
Referring to fig. 1 and 2, the upper cover 1 may be provided with a first screw hole 1-5, a second screw hole 1-6, a third screw hole 1-7, and a fourth screw hole 1-8 (the first screw hole 1-5, the second screw hole 1-6, the third screw hole 1-7, and the fourth screw hole 1-8 are uniformly distributed on the upper cover 1), the bottom substrate 2 may be provided with a fifth screw hole 2-1, a sixth screw hole 2-2, a seventh screw hole 2-3, and an eighth screw hole 2-4 (the fifth screw hole 2-1, the sixth screw hole 2-2, the seventh screw hole 2-3, and the eighth screw hole 2-4 are uniformly distributed on the bottom substrate 2), and the screws matched with the above screw holes include: the first screw 1-1, the second screw 1-2, the third screw 1-3 and the fourth screw 1-4 can be used for fixing the upper cover 1 and the bottom base plate 2 through screw holes to form a data center liquid cooling plate. Specifically, the fifth screw hole 2-1 can be connected with the first screw hole 1-5 through the first screw 1-1, the sixth screw hole 2-2 can be connected with the second screw hole 1-6 through the second screw 1-2, the seventh screw hole 2-3 can be connected with the third screw hole 1-7 through the third screw 1-3, the eighth screw hole 2-4 can be connected with the fourth screw hole 1-8 through the fourth screw 1-4, the upper cover 1 and the bottom base plate 2 can be finally fixed, and the fixed upper cover 1 and the fixed bottom base plate 2 form a data center liquid cooling plate.
In some embodiments, the flow distribution structures 2-5, 2-6, 2-7 may be semi-cylindrical structures, and may include a first flow distribution structure 2-5, a second flow distribution structure 2-6, and a third flow distribution structure 2-7, where the first flow distribution structure 2-5 may be above the water inlet 1-9, the second flow distribution structure 2-6 may be located at an upper left side of the first flow distribution structure 2-5, the third flow distribution structure 2-7 may be located at an upper right side of the first flow distribution structure 2-5, and a radius of the first flow distribution structure 2-5 may be greater than a radius of the second flow distribution structure 2-6 and the third flow distribution structure 2-7.
By providing a plurality of flow distribution structures 2-5, 2-6, 2-7, a uniform distribution of flow can be ensured, resulting in a uniform distribution of fluid. By arranging the first flow distribution structure 2-5 with the water inlet 1-9 above, the second flow distribution structure 2-6 is located at the left upper side of the first flow distribution structure 2-5, the third flow distribution structure 2-7 is located at the right upper side of the first flow distribution structure 2-5, and the radius of the first flow distribution structure 2-5 may be larger than the radii of the second flow distribution structure 2-6 and the third flow distribution structure 2-7, it is ensured that fluid flows from the water inlet 1-9 into the first flow distribution structure 2-5 through one uniform flow distribution, flows into the second flow distribution structure 2-6 and the third flow distribution structure 2-7 through one uniform flow distribution, and the uniformly distributed fluid formed after final uniform flow distribution may enter two flow passages of the micro-channels 2-8, respectively. By arranging the flow distribution structures 2-5, 2-6 and 2-7 to be semi-cylindrical structures, the flow distribution structures 2-5, 2-6 and 2-7 can evenly distribute flow to two sides, and finally evenly distributed fluid is formed.
In some embodiments, the data center liquid cooling plate may further include a separation rib wall 2-9, 2-12, 2-13, the micro-channel 2-8 may be divided into two flow channels by the separation rib wall 2-9, 2-12, 2-13, the two flow channels may be used to uniformly absorb heat of the bottom substrate by passing fluid, the separation rib wall may include a first separation rib wall 2-9, a second separation rib wall 2-12, and a third separation rib wall 2-13, the micro-channel 2-8 may be located between the second separation rib wall 2-12 and the third separation rib wall 2-13, and the first separation rib wall 2-9 may be located in the middle of the micro-channel 2-8.
By dividing the microchannel 2-8 into two flow passages using the partition rib walls 2-9, 2-12, 2-13, the liquid cooling plate temperature can be uniformly distributed.
In some embodiments, the above-mentioned micro channels 2-8 are divided into two flow channels by the partition rib wall, and may include:
Dividing the microchannel into first flow channels based on the first and second partition rib walls 2-9 and 2-12;
the microchannel is divided into second flow channels based on the first partition rib wall 2-9 and the third partition rib wall 2-13.
In some embodiments, the microchannels 2-8 described above may enhance heat transfer capability. The uniformly distributed fluid formed after the uniform flow distribution can enter the micro-channels 2-8, namely, enter two flow channels formed after the division (specifically, the fluid flowing into the second flow distribution structure 2-6 can enter the second flow channel, the fluid flowing into the third flow distribution structure 2-7 can enter the first flow channel), so that the fluid passing through the two flow channels can uniformly absorb the heat of the bottom substrate 2, the temperature of the fluid can rise at the moment, and the temperature of the bottom substrate 2 can drop.
In some embodiments, the above-described integrated structure may include a first integrated structure located at an outlet of the first flow channel and a second integrated structure located at an outlet of the second flow channel, and the first integrated structure may include a first flow guiding structure 2-10-1, a second flow guiding structure 2-10-3, and a first flow disturbing structure 2-10-2 located intermediate the first flow guiding structure 2-10-1 and the second flow guiding structure 2-10-3, and the second integrated structure may include a third flow guiding structure 2-11-1, a fourth flow guiding structure 2-11-3, and a second flow disturbing structure 2-11-2 located intermediate the third flow guiding structure 2-11-1 and the fourth flow guiding structure 2-11-3. The first comprehensive structure can be used for enabling the fluid flowing out of the first flow channel to slowly flow into the staggered flow diversion channels 2-14 on the side of the second partition rib wall 2-12 after passing through the primary flow diversion effect of the first flow diversion structure 2-10-1, the flow diversion effect of the first flow diversion structure 2-10-2 and the secondary flow diversion effect of the second flow diversion structure 2-10-3, and the second comprehensive structure can be used for enabling the fluid flowing out of the second flow channel to slowly flow into the staggered flow diversion channels 2-14 on the side of the third partition rib wall 2-13 after passing through the primary flow diversion effect of the third flow diversion structure 2-11-1, the flow diversion effect of the second flow diversion structure 2-11-2 and the secondary flow diversion effect of the fourth flow diversion structure 2-11-3.
In some embodiments, the first integrated structure (consisting of the first flow guiding structure 2-10-1, the first turbulence structure 2-10-2, and the second flow guiding structure 2-10-3) and the second integrated structure (consisting of the third flow guiding structure 2-11-1, the second turbulence structure 2-11-2, and the fourth flow guiding structure 2-11-3) may be located before the fluid flows through the micro channel 2-8 and then flows through the staggered flow diversion channel 2-14. Specifically, the first integrated structure may be located after the fluid flows through the first flow channel and before the fluid flows through the staggered flow-dividing flow channels 2-14 on the side of the second partition rib wall 2-12, and the second integrated structure may be located after the fluid flows through the second flow channel and before the fluid flows through the staggered flow-dividing flow channels 2-14 on the side of the third partition rib wall 2-13.
Through setting up integrated configuration (first integrated configuration, second integrated configuration), on the one hand, can strengthen the vortex effect of fluid, strengthen the heat transfer ability of fluid in this part, make temperature distribution more even, on the other hand, can make the fluid evenly flow into in the crisscross reposition of redundant personnel runner, effectively reduce fluid flow resistance.
In some embodiments, the first flow guiding structure 2-10-1, the first turbulence structure 2-10-2, the second flow guiding structure 2-10-3, the third flow guiding structure 2-11-1, the second turbulence structure 2-11-2, and the fourth flow structure 2-11-3 have the same radius, and the positions of the first flow guiding structure 2-10-1, the first turbulence structure 2-10-2, the second flow guiding structure 2-10-3, the third flow guiding structure 2-11-1, the second turbulence structure 2-11-2, and the fourth flow guiding structure 2-11-3 are axisymmetric with respect to the first partition rib wall 2-9.
In some embodiments, the first flow guiding structure 2-10-1, the first flow disturbing structure 2-10-2, the third flow guiding structure 2-11-1 and the second flow disturbing structure 2-11-2 may be semicircular, the second flow guiding structure 2-10-3 and the fourth flow guiding structure 2-11-3 may be circular, and fluid may flow into the flow disturbing structures in a concentrated manner by arranging the semicircular flow guiding structures, and fluid after being disturbed may flow into the corresponding staggered flow distributing channels completely and uniformly by arranging the circular flow guiding structures.
In some embodiments, the staggered flow-dividing channels 2-14 may include a bionic dragonfly wing channel, where the bionic dragonfly wing channel may be used to reduce the flow resistance of the fluid and enhance the turbulence effect of the fluid, and the staggered flow-dividing channels 2-14 may be located on two sides of the second partition rib wall and the third partition rib wall.
The bionic dragonfly wing flow channels are arranged, the flow channels are distributed in a staggered mode, the streamline structure of the bionic dragonfly wing flow channels can reduce flow resistance, the turbulent flow effect can be enhanced through staggered distribution, and the heat exchange and the flow performance of the liquid cooling plate are further improved.
In some embodiments, the first flow guiding structure 2-10-1, the second flow guiding structure 2-10-3, the third flow guiding structure 2-11-1 and the fourth flow guiding structure 2-11-3 can reduce the flow resistance of the fluid, the second flow guiding structure 2-10-3 and the fourth flow guiding structure 2-11-3 can enable the fluid to slowly flow into the staggered flow dividing channels 2-14 (i.e. the fluid can slowly flow into the staggered flow dividing channels through the flow guiding effect of the second flow guiding structure 2-10-3 and the fourth flow guiding structure 2-11-3), and the temperature of the fluid flowing out of the two flow channels can be reduced in the process of slowly flowing into the staggered flow dividing channels 2-14. The streamline structure of the staggered flow diversion channels 2-14 can effectively reduce the flow resistance of cooling water, the staggered flow diversion channels 2-14 realize staggered flow diversion, the cooling water realizes the turbulence effect, the heat of the bottom substrate 2 is further absorbed, the temperature of the cooling water is further increased, and the temperature of the bottom substrate 2 is further reduced.
In some embodiments, the thickness of the upper cover 1 may be 2mm, the height of the bottom substrate 2 may be 5mm, and the height of the micro-channels 2-8 may be 4mm, which may reduce the flow resistance of fluid flowing through the micro-channels 2-8; the heights of the first flow guide structure 2-10-1, the second flow guide structure 2-10-3, the third flow guide structure 2-11-1, the fourth flow guide structure 2-11-3, the first partition rib wall 2-9, the second partition rib wall 2-12, the third partition rib wall 2-13 and the staggered flow dividing channels (bionic dragonfly wing channels) can be 4mm, so that the fluid is ensured to flow through the closed channels; the heights of the first flow distribution structure 2-5, the second flow distribution structure 2-6, the third flow distribution structure 2-7, the first turbulence structure 2-10-2 and the second turbulence structure 2-11-2 can be 2mm, so that the flow distribution structure can effectively distribute flow without generating too large pressure drop, the turbulence structure can effectively turbulence, and the turbulence effect of fluid is enhanced.
In some embodiments, the bottom surface of the base substrate 2 may be in contact with the upper surface of the heat generating electronic component 3. The heating electronic element 3 can transfer heat to the base substrate 2 in a heat conductive manner, causing the temperature of the base substrate 2 to rise. The fluid-cooled base substrate 2 can transfer cooling energy to the heat-generating electronic component 3, thereby cooling the heat-generating electronic component 3.
In some embodiments, the flowing out of the water outlet communicated with the staggered flow diversion channels comprises:
flows out from the second water outlets 1-11 communicated with the staggered flow-dividing channels 2-14 on the side of the second partition rib wall 2-12, and flows out from the first water outlets 1-10 communicated with the staggered flow-dividing channels 2-14 on the side of the third partition rib wall 2-13.
In some embodiments, after the fluid is disturbed by the staggered flow-dividing channels, the temperature of the bottom substrate 2 is reduced after the heat of the bottom substrate 2 is further absorbed, the temperature of the fluid is increased, the fluid with the increased temperature can flow out from the first water outlet 1-10 and the second water outlet 1-11 respectively, and finally all the fluid flowing through the staggered flow-dividing channels 2-14 flows out, at this time, the bottom substrate 2 cooled by the fluid can transfer the cold energy to the heating electronic element 3, so as to realize the cooling of the heating electronic element 3. The heat generating electronic component 3 may be a data center internal device or a server, which is not particularly limited in this specification.
In some embodiments, the fluid may include liquid water, such as: and (5) cooling water.
In some embodiments, the upper cover 1, the first screw 1-1, the second screw 1-2, the third screw 1-3, the fourth screw 1-4, the first screw 1-5, the second screw 1-6, the third screw 1-7, the fourth screw 1-8, the water inlet 1-9, the first water outlet 1-10, the second water outlet 1-11 may be used as an upper cover portion, the bottom substrate 2, the fifth screw 2-1, the sixth screw 2-2, the seventh screw 2-3, the eighth screw 2-4, the first flow distribution structure 2-5, the second flow distribution structure 2-6, the third flow distribution structure 2-7, the micro channel 2-8, the first partition rib wall 2-9, the second partition rib wall 2-12, the third partition rib wall 2-13, the first flow guide structure 2-10-1, the first flow guide structure 2-10-2, the second flow guide structure 2-10-3, the third flow guide structure 2-11-1, the second flow guide structure 2-11-2, the fourth flow guide structure 2-11-3, and the bottom substrate may be used as a common flow guide portion. Wherein the material of the upper cover part and the bottom plate part may be copper.
In a specific implementation scenario, the above-mentioned data center liquid cooling plate can be used to realize effective cooling of the internal equipment of the data center, and its working principle is as follows:
The heating electronic element 3 can transfer heat to the bottom substrate 2 in a heat conduction mode, the temperature of the bottom substrate 2 rises, cooling water enters the liquid cooling plate from the cooling water inlet 1-9, the cooling water evenly distributes flow to two sides through the first flow distribution structure 2-5, and the cooling water evenly distributes flow to two sides again after passing through the second flow distribution structure 2-6 and the third flow distribution structure 2-7. The cooling water distributed by the flow rate enters two flow channels of the micro-channel 8, the cooling water absorbs part of the heat of the bottom substrate 2, the temperature of the cooling water rises, and the temperature of the bottom substrate 2 drops. The cooling water flowing through the two channels of the micro-channel 8 flows into the first turbulence structure 2-10-2 (the second turbulence structure 2-11-2) through the diversion effect of the first turbulence structure 2-10-1 (the third turbulence structure 2-11-1), the turbulence effect of the cooling water can be enhanced after passing through the first turbulence structure 2-10-2 (the second turbulence structure 2-11-2), the heat exchange effect of the cooling water and the bottom substrate 2 is enhanced, the cooling water absorbs heat, the temperature rises, the temperature of the bottom substrate 2 drops, then the cooling water flowing direction is changed into the staggered flow diversion channel (the bionic dragonfly wing flow channel) 2-14 through the second diversion structure 2-10-3 (the fourth diversion structure 2-11-3), the diversion effect is generated, the fluid uniformly enters the staggered flow diversion channel (the bionic dragonfly wing flow channel) 2-14, the cooling water flows through the linear flow diversion structure of the staggered flow diversion channel (the bionic dragonfly wing flow channel) 2-14, the cooling water can effectively drop, the temperature of the bionic wing flow diversion channel 2-14 rises, and the temperature of the cooling water can further rise, and the cooling water can further flow through the bionic wing flow diversion channel 2-the temperature rises, and the temperature of the bottom substrate is further cooled, and the temperature of the cooling water is further cooled. The cooling water after heat exchange flows out of the liquid cooling plate from the first cooling water outlet 1-10 and the second cooling water outlet 1-11 respectively. Finally, the bottom substrate 2 cooled by the cooling water transfers the cooling energy to the heating electronic element 3, thereby realizing the cooling of the heating electronic element 3.
The invention has the beneficial effects that: the first flow distribution structure 2-5, the second flow distribution structure 2-6 and the third flow distribution structure 2-7 are arranged in the data center liquid cooling plate to uniformly distribute flow. And 2-8 of micro channels are arranged, so that the heat exchange capacity is enhanced. The first separation rib wall 2-9, the second separation rib wall 2-12 and the third separation rib wall 2-13 are arranged to divide the liquid cooling plate into two flow channels, so that the temperature of the liquid cooling plate is uniformly distributed. The first flow guiding structure 2-10-1, the first flow disturbing structure 2-10-2, the second flow disturbing structure 2-10-3, the third flow guiding structure 2-11-1, the second flow disturbing structure 2-11-2 and the fourth flow guiding structure 2-11-3 are arranged, the flow guiding structures can enable fluid to uniformly enter the staggered flow distributing channels (bionic dragonfly wing channels) 2-14, fluid flow resistance is effectively reduced, the flow disturbing effect of the fluid can be enhanced by the flow disturbing structures, heat exchange capacity of the fluid at the part is enhanced, and temperature distribution is more uniform. The staggered flow distribution channels (bionic dragonfly wing channels) 2-14 are arranged, the flow channels are distributed in a staggered mode, the streamline structure of the staggered flow distribution channels (bionic dragonfly wing channels) 2-14 can reduce flow resistance, the turbulent flow effect can be enhanced through staggered flow distribution, and the heat exchange and flow performance of the liquid cooling plate are further improved. Eventually, efficient cooling of the data center internal equipment may be achieved.
Various embodiments in this specification are described in a progressive manner, and identical or similar parts are all provided for each embodiment, each embodiment focusing on differences from other embodiments.
Although the present specification has been described by way of example, it will be appreciated by those skilled in the art that there are many variations and modifications to the specification without departing from the spirit of the specification, and it is intended that the appended claims encompass such variations and modifications as do not depart from the spirit of the specification.
Claims (10)
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| CN114615866A (en) * | 2022-03-21 | 2022-06-10 | 北京微焓科技有限公司 | Liquid cooling plate and electronic equipment |
| CN117438697A (en) * | 2023-12-01 | 2024-01-23 | 宁德致上和科技有限公司 | Inflation type liquid cooling plate and forming process thereof |
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| CN114615866A (en) * | 2022-03-21 | 2022-06-10 | 北京微焓科技有限公司 | Liquid cooling plate and electronic equipment |
| CN117438697A (en) * | 2023-12-01 | 2024-01-23 | 宁德致上和科技有限公司 | Inflation type liquid cooling plate and forming process thereof |
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