CN108323120B - Liquid cooling heat dissipation is from inhaling formula reflow mechanism - Google Patents
Liquid cooling heat dissipation is from inhaling formula reflow mechanism Download PDFInfo
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- CN108323120B CN108323120B CN201810185144.7A CN201810185144A CN108323120B CN 108323120 B CN108323120 B CN 108323120B CN 201810185144 A CN201810185144 A CN 201810185144A CN 108323120 B CN108323120 B CN 108323120B
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- 239000007788 liquid Substances 0.000 title claims abstract description 52
- 238000001816 cooling Methods 0.000 title claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 19
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000009471 action Effects 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims abstract description 12
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 35
- 230000004888 barrier function Effects 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 10
- 238000005192 partition Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 3
- 239000000110 cooling liquid Substances 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 description 17
- 239000007789 gas Substances 0.000 description 16
- 239000007921 spray Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- H05K7/20709—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
-
- 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
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
-
- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Computer Hardware Design (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application discloses a liquid cooling heat dissipation self-priming reflux mechanism, which comprises a branch oil return pipe, a main oil return pipe, a pressure automatic opening and closing valve and an oil return box, wherein one end of the branch oil return pipe is connected with an oil return port of a server case, the other end of the branch oil return pipe is connected with the main oil return pipe, the lower end of the main oil return pipe extends to the oil return box, an enlarged liquid collecting cavity is arranged at the lower end of the main oil return pipe, the pressure automatic opening and closing valve is arranged in the liquid collecting cavity and is used for automatically opening or closing according to the accumulated oil return weight in the main oil return pipe to enable the oil return to flow downwards or cut off, the accumulated oil in the main oil return pipe causes the pressure automatic valve to be opened under the action of gravity of the pressure automatic valve, the oil return is to be dismounted, the pressure automatic opening and closing valve is closed, and at the moment, the branch oil return pipe and the main oil return pipe are positioned in a pipeline above the pressure automatic opening and closing valve are in a vacuum state. The application adopts the pressure to automatically open and close the valve, fully utilizes the advantage of the siphon effect, and realizes the rapid reflux of the insulating cooling liquid in the server.
Description
Technical Field
The application relates to a liquid cooling heat dissipation and backflow mechanism, in particular to a liquid cooling heat dissipation and self-suction type backflow mechanism which can be applied to the fields of data center servers, machine room cabinets, electronic cabinets, factory production equipment, biochemical products and the like.
Background
The existing servers mostly rely on air cooling to perform forced convection heat dissipation, but an air cooling mode is an indirect contact cooling mode with low heat transfer efficiency. When the traditional server solves the waste heat of higher power devices or pursues lower thermal resistance, a stronger fan or lower air inlet temperature is often adopted to control the device temperature, the former brings greater noise, and the latter easily causes the problem of dew condensation of excessively low humid air.
The liquid cooling heat dissipation is a main technology of server heat dissipation after a while because the load capacity of a working medium represented by the product of the density and specific heat of an insulating cooling liquid is nearly 2000 times higher than that of an air cooling mode. The spray type liquid cooling system developed by the inventor sprays insulating cooling liquid directly on the surface of a server heating device or on an expansion surface contacted with the device and takes away waste heat discharged by the device, so that the server heating device is efficiently and thermally managed. However, the spray type liquid cooling system needs efficient and rapid circulation of the insulating cooling liquid in the spray type liquid cooling system to ensure that the waste heat of the high-power device is rapidly taken away.
However, the structure of the conventional liquid circulation system is relatively simple, and the conventional liquid circulation system comprises a main pipeline and a branch pipeline connected with the main pipeline, wherein the branch pipeline is connected with a server, and the cooling liquid flows into the branch pipeline by gravity after cooling the server and is collected into the main pipeline. The cooling liquid has the following defects in a gravity backflow mode:
the method has the advantages that cooling liquid flows back only through gravity, the backflow speed is low, vortex is easily formed due to the fact that air and the like are mixed in oil return, the backflow speed is further reduced, and the phenomenon that servers overflow easily occurs.
In order to improve the reflux speed, the branch pipeline is thickened in the conventional method, so that the cost is increased, the thickened pipeline occupies more space, and the space in the cabinet is very limited.
According to the liquid circulation system with the pump, although the backflow speed can be improved, the liquid circulation system has higher sealing requirements on the whole circulation pipeline, the liquid circulation system does not conform to the liquid cooling heat dissipation energy-saving environment-friendly concept, the liquid level in the server cannot be guaranteed to be always full, and air is easy to enter in the pump to cause damage.
Therefore, the above-mentioned drawbacks of the conventional liquid circulation system greatly restrict the application and development of the spray-type liquid cooling system.
Disclosure of Invention
The application aims to provide the liquid cooling heat dissipation self-priming reflux mechanism which has the advantages of simple structure, low manufacturing cost, high reflux speed, good heat dissipation effect, energy conservation and environmental protection.
The aim of the application is achieved by the following technical measures: the utility model provides a liquid cooling heat dissipation is from inhaling formula return mechanism, it includes the branch that transversely sets up returns oil pipe, the total oil return pipe of vertical setting and is located the oil return case of total oil return pipe below, the one end sealing connection server machine case's of branch returns oil pipe returns the oil inlet, the total oil return pipe of other end sealing connection, and the lower extreme of total oil return pipe stretches to oil return case and communicates with it, its characterized in that: the liquid cooling heat dissipation self-priming reflux mechanism further comprises a pressure automatic opening and closing valve, the lower end of the main oil return pipe is provided with an expanded liquid collecting cavity, the pressure automatic opening and closing valve is arranged in the liquid collecting cavity and used for automatically opening or closing according to the accumulated oil return weight in the main oil return pipe to enable oil return to flow downwards or flow off, the accumulated oil return in the main oil return pipe enables the pressure automatic valve to be opened under the action of gravity of the pressure automatic opening and closing valve, the pressure automatic opening and closing valve is to be dismounted for oil return, at the moment, the branch oil return pipe and the main oil return pipe are in a vacuum state in a pipeline above the pressure automatic opening and closing valve, and accumulated oil in the server is returned to the main oil return pipe under the siphon action.
The pressure automatic opening and closing valve is in a closed state under the normal condition, and the valve is opened after the oil return in the total oil return pipe is accumulated to a certain weight, and is quickly closed after the oil return is detached. The oil accumulation in the server quickly flows back to the total oil return pipe under the action of pressure, the backflow speed is high, waste heat of a high-power device can be quickly taken away, and the heat dissipation effect is good; in addition, the application has simple structure and low manufacturing cost, does not increase additional input power, accords with the concept of liquid cooling heat dissipation, energy conservation and environmental protection, and can further promote the wide application of the spray type liquid cooling system.
As a preferred embodiment of the application, the number of the branch oil return pipes is several, each branch oil return pipe is connected to the pipe body of the total oil return pipe in a sealing way, and the upper end of the total oil return pipe is closed.
In order to further accelerate the return flow of accumulated oil in the server, as an improvement of the application, a siphon component is additionally arranged between an oil return port and a branch oil return pipe of the server.
As one implementation mode of the application, the siphon component mainly comprises a vertical conical pipe and a gas baffle, wherein the upper pipe section of the conical pipe is gradually reduced from top to bottom, the lower pipe section is a straight pipe section which is the same as the pipe diameter of the branch oil return pipe, the gas baffle is fixed at the pipe orifice at the upper end of the conical pipe and covers the pipe orifice, a plurality of flow through holes communicated with the straight pipe section are formed in the gas baffle, the total area of the flow through holes is larger than or equal to the pipe orifice area of the straight pipe section, the gas baffle is connected with the oil return port of the server, and the lower pipe section of the conical pipe is butted with the branch oil return pipe into a whole.
The working principle of the application is as follows: when liquid is discharged, the cooling liquid flows to the straight pipe section of the conical pipe through the overflow holes on the gas barrier, and under the action of liquid collection of the upper pipe section, the total area of the overflow holes is larger than or equal to the pipe orifice area of the straight pipe section, and the cooling liquid rapidly occupies the section of the straight pipe section and forms a full pipe section. Because the liquid level difference exists between the surface of the cooling liquid and the bottom surface of the straight pipe section, the flow speed of the cooling liquid in the straight pipe section is high under the action of gravity, the cooling liquid on the upper part is driven to be continuously sucked into the straight pipe section, siphonage is generated, and the cooling liquid is rapidly discharged under the action of the siphonage effect.
As a preferred embodiment of the present application, the flow-through holes are arc-shaped holes uniformly arranged along the same circumference of the gas barrier.
As a recommended mode of the application, the outer edge of the overflow hole is vertically aligned with the inner wall surface of the upper end of the conical tube.
The air isolation plate extends outwards along the radial direction to form a connecting edge, and the connecting edge is connected with the sealing structure of the oil return opening.
As another embodiment of the application, the siphon member mainly comprises a gas separation plate, a cushion block, a supporting plate, an outer tube, an inner tube, a separation tube and a sealing plate, wherein the gas separation plate is a complete plate body and is positioned above the supporting plate, a plurality of cushion blocks are arranged between the gas separation plate and the supporting plate along the circumference at intervals so as to form gaps between the gas separation plate and the supporting plate, a plurality of through holes are formed in the supporting plate, the outer tube is vertically arranged, the upper end of the outer tube is connected to the lower surface of the supporting plate, the center of the sealing plate is provided with a hole, the outer plate of the sealing plate is circumferentially connected with the lower end pipe orifice of the outer tube, a short tubular separation tube is arranged in the outer tube, the upper end of the separation tube is connected to the lower surface of the supporting plate, a first annular gap is arranged between the outer tube and the separation tube, the through holes correspond to the first annular gap and are communicated with the first annular gap, the inner tube is vertically inserted into the center hole of the sealing plate, the upper end of the inner tube extends into the lower pipe orifice of the separation tube and is provided with a second annular gap between the inner tube, the upper end of the inner tube is larger than or equal to the area of the inner tube, the pipe orifice of the service port is connected with the lower end of the pipe, the inner tube is connected with the service port, and the inner tube forms an integral cooling port with the third branch, and the cooling port is formed by the cooling port.
The working principle of the application is as follows: when the liquid is discharged, the cooling liquid flows into the space formed by the outer tube, the sealing plate, the inner tube and the supporting plate from the gap between the gas-barrier plate and the supporting plate, and finally flows out from the inner tube. Under the action of the air barrier, air is discharged outside the air barrier. The section of the space formed by the outer tube, the sealing plate, the inner tube and the supporting plate is larger than that of the inner tube, and the liquid in the space formed by the outer tube, the sealing plate, the inner tube and the supporting plate rapidly occupies the inner tube under the impact of external cooling liquid to form a full tube section; the liquid level difference exists between the surface of the cooling liquid and the surface of the lower end of the inner tube, the flow speed of the cooling liquid at the lower side of the inner tube is high under the action of gravity, and the cooling liquid at the upper part is driven to be continuously sucked into the inner tube, so that siphonage is generated. The cooling liquid is rapidly discharged under the siphon effect.
As a preferred embodiment of the present application, the overflow holes are arc-shaped holes uniformly arranged along the same circumference of the support plate, the inner holes of the overflow holes are aligned up and down with the outer wall of the partition tube, and the outer holes of the overflow holes are aligned up and down with the inner wall of the outer tube.
According to the application, the supporting plate extends to the outside of the outer plate edge of the air isolation plate along the radial direction to form a connecting edge, and the outer edge of the connecting edge is connected with the sealing structure of the oil return port, so that the third annular gap is formed.
Compared with the prior art, the application has the following remarkable effects:
the application adopts the pressure to automatically open and close the valve, fully utilizes the advantage of siphon action, realizes the rapid and efficient backflow of the insulating cooling liquid in the server, and expands the application range of the spray type liquid cooling system.
According to the application, the siphon component is additionally arranged between the oil return port and the branch oil return pipe of the server, so that the return flow of accumulated oil in the server can be further accelerated.
The pipeline is compact in structure and high in utilization rate, and has a particularly remarkable effect when being applied to a high-power server spray type liquid cooling system.
The application has simple structure and low manufacturing cost, does not increase additional input power, accords with the concept of liquid cooling heat dissipation, energy conservation and environmental protection, and can further promote the wide application of the spray type liquid cooling system.
Drawings
The application will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a schematic view showing the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic view showing the constitution of a liquid circulation system according to embodiment 1 of the present application;
FIG. 3 is an axial cross-sectional view of a wick member of embodiment 2 of the present application;
FIG. 4 is a top view of a gas barrier according to embodiment 2 of the present application;
fig. 5 is an axial cross-sectional view of a wick member of embodiment 3 of the present application.
Detailed Description
Example 1
As shown in fig. 1 and 2, the liquid cooling heat dissipation self-priming type reflux mechanism applied to a spray type liquid cooling system of a high-power server comprises a branch oil return pipe 1 which is transversely arranged, a main oil return pipe 2 which is vertically arranged, a mechanical pressure automatic opening and closing valve 5 and an oil return box 3 which is positioned below the main oil return pipe 2, wherein the number of the branch oil return pipes 1 is several, one end of each branch oil return pipe 1 is hermetically connected with an oil return port at the bottom or the side surface of a chassis of the server 4, the other end of each branch oil return pipe 1 is hermetically connected to a pipe body of the main oil return pipe 2, the upper end of the main oil return pipe 2 is sealed, the lower end of the main oil return pipe 2 extends into the oil return box 3, the lower end of the main oil return pipe 2 is provided with an expanded liquid collecting cavity 6, the mechanical pressure automatic opening and closing valve 5 is arranged in the liquid collecting cavity 6 and is used for automatically opening or closing according to the accumulated oil return weight in the main oil return pipe 2 so that the mechanical pressure automatic valve 5 is opened under the action of gravity of the main oil return pipe 2, the mechanical pressure automatic valve 5 is to be detached at the moment, the mechanical pressure automatic opening and closing valve 5 is closed under the action of gravity of the main oil return pipe, and the main oil return valve is positioned in the main oil return pipe 2.
The working principle of the application is as follows: the mechanical pressure automatic opening and closing valve 5 is in a closed state under normal conditions, and is opened when the oil return in the main oil return pipe 2 is accumulated to a certain weight, and is quickly closed after the oil return is removed. Because of the functions of the liquid level in the server 4 and the mechanical pressure automatic opening and closing valve 5, the whole of the branch oil return pipe 1 and the total oil return pipe 2 is of a sealing structure, the sealing structure is in a vacuum state after oil return is detached, and the pressure in the server 4 is higher than the pressure of the sealing structure, so that accumulated oil in the server 4 quickly flows back to the total oil return pipe 2 under the pressure, and the valve 5 is opened and closed again after a certain weight is reached, and the circulation is performed. The insulating cooling liquid in the oil return tank 3 enters the radiator 24 to be cooled by the pump 23 and then enters the server 4 again to be sprayed, and the circulation is performed.
Example 2
As shown in fig. 3 and 4, this embodiment is different from embodiment 1 in that: a siphon component is additionally arranged between the oil return port of the server 4 and the branch oil return pipe 1, so that the return flow of accumulated oil in the server 4 can be further accelerated. In this embodiment, the siphon member mainly comprises a vertical conical tube 7 and a gas-barrier plate 8, the upper tube section 9 of the conical tube 7 tapers from top to bottom, the lower tube section 10 is a straight tube section, the tube diameter of the straight tube section is the same as that of the branch oil return tube 1, the gas-barrier plate 8 is fixed at the upper end tube orifice of the conical tube 7 and covers the tube orifice, a plurality of through-flow holes 11 communicated with the straight tube section are formed in the gas-barrier plate 8, in this embodiment, the through-flow holes 11 are 4 arc-shaped holes uniformly formed along the same circumference of the gas-barrier plate 8, the total area of each through-flow hole 11 is greater than or equal to the tube orifice area of the straight tube section, and the outer hole edge of the through-flow hole 11 is aligned up and down with the inner wall surface of the upper end of the conical tube. The air baffle 8 is connected with an oil return port of the server 4, specifically, the air baffle 8 extends outwards along the radial direction to form a connecting edge 12, and the connecting edge 12 is connected with a sealing structure of the oil return port, specifically, is connected with a sealing gasket through a bolt. The lower pipe section 10 of the conical pipe is in butt joint with the branch oil return pipe 1.
The working principle of the embodiment is as follows: when the liquid is discharged, the cooling liquid A flows to the straight pipe section of the conical pipe 7 through the overflow holes 11 on the gas barrier 8, and under the action of the liquid collection of the upper pipe section 9, the total area of the overflow holes 11 is larger than or equal to the pipe opening area of the straight pipe section, and the cooling liquid rapidly occupies the cross section of the straight pipe section and forms a full pipe section. Because the liquid level difference exists between the surface of the cooling liquid and the bottom surface of the straight pipe section, the flow speed of the cooling liquid in the straight pipe section is high under the action of gravity, the cooling liquid on the upper part is driven to be continuously sucked into the straight pipe section, siphonage is generated, and the cooling liquid is rapidly discharged under the action of the siphonage effect.
Example 3
As shown in fig. 5, this embodiment is different from embodiment 2 in that: the siphon member mainly comprises a gas separation plate 8, a cushion block 13, a supporting plate 14, an outer tube 15, an inner tube 16, a separation tube 17 and a sealing plate 18, wherein the gas separation plate 8 is a complete plate body and is positioned above the supporting plate 14, a plurality of cushion blocks 13 are arranged between the gas separation plate 8 and the supporting plate 14 along the circumference at intervals so as to form gaps 19 between the two, a plurality of through holes 20 are formed in the supporting plate 14, in the embodiment, the through holes 20 are arc-shaped holes uniformly formed along the same circumference of the supporting plate 14, the outer tube 15 is vertically arranged, the upper end of the outer tube 15 is connected to the lower surface of the supporting plate 14, the center of the sealing plate 18 is provided with a hole, the outer plate of the sealing plate 18 is connected with the lower end of the outer tube 15 along the circumference, a short tubular separation tube 17 is arranged in the outer tube 15, the upper end of the separation tube 17 is connected to the lower surface of the supporting plate 14, a first annular gap 21 is arranged between the outer tube 15 and the separation tube 17, the through holes 20 correspond to the first annular gap 21 and are vertically inserted into the center holes of the sealing plate 18, the upper ends of the inner tube 16 extend into the lower tube mouth of the separation tube 17 and are provided with second annular gaps 22 along the inner holes 20 and are aligned with the inner holes 20 along the lower inner holes and the lower annular gap 20 and the upper ends of the upper tube wall and the lower tube wall 20 are aligned with the opposite. The total area of the overflow holes 20 is larger than or equal to the pipe orifice area of the inner pipe 16, the support plate 14 is connected with the oil return port of the server 4, so that a third annular gap (not shown in the figure) for inflow of cooling liquid is formed between the air baffle 8 and the inner wall of the oil return port, and the pipe diameter of the inner pipe 16 is the same as that of the branch oil return pipe 1 and is in butt joint with the branch oil return pipe 1. In the present embodiment, the support plate 14 extends radially outwardly of the outer plate edge of the air barrier 8 to form a connecting edge 25, and the outer edge of the connecting edge 25 is connected to the sealing structure of the oil return port, specifically, to the sealing gasket by bolts, thereby forming a third annular gap.
The working principle of the embodiment is as follows: at the time of draining, the cooling liquid a flows from the gap between the gas barrier 8 and the support plate 14 into the space formed by the outer tube 15, the seal plate 18, the inner tube 16, and the support plate 14, and finally flows out from the inner tube 16. Under the action of the air barrier 8, air is discharged outside the air barrier 8. The space section formed by the outer tube 15, the sealing plate 18, the inner tube 16 and the supporting plate 14 is larger than the section of the inner tube 16, and the liquid in the space formed by the outer tube 15, the sealing plate 18, the inner tube 16 and the supporting plate 14 rapidly fills the inner tube and forms a full tube section under the impact of external cooling liquid; the liquid level difference exists between the surface of the cooling liquid and the surface of the lower end of the inner tube 16, the flow speed of the cooling liquid at the lower side of the inner tube 16 is high under the action of gravity, and the cooling liquid at the upper part is driven to be continuously sucked into the inner tube 16, so that siphonage is generated. The cooling liquid is rapidly discharged under the siphon effect.
The embodiments of the present application are not limited thereto, and according to the above-described aspects of the present application, the present application may be modified, replaced or altered in various other ways without departing from the basic technical spirit of the present application, all of which fall within the scope of the claims of the present application, according to the general technical knowledge and conventional means of the present art.
Claims (9)
1. The utility model provides a liquid cooling heat dissipation is from inhaling formula return mechanism, it includes the branch that transversely sets up returns oil pipe, the total oil return pipe of vertical setting and is located the oil return case of total oil return pipe below, the one end sealing connection server machine case's of branch returns oil pipe returns the oil inlet, the total oil return pipe of other end sealing connection, and the lower extreme of total oil return pipe stretches to oil return case and communicates with it, its characterized in that: the liquid cooling heat dissipation self-priming reflux mechanism further comprises a pressure automatic opening and closing valve, the lower end of the main oil return pipe is provided with an expanded liquid collecting cavity, the pressure automatic opening and closing valve is arranged in the liquid collecting cavity and used for automatically opening or closing according to the accumulated oil return weight in the main oil return pipe to enable oil return to flow downwards or flow off, the accumulated oil return in the main oil return pipe enables the pressure automatic valve to be opened under the action of gravity, the pressure automatic opening and closing valve is to be dismounted for oil return, at the moment, the branch oil return pipe and the main oil return pipe are in a vacuum state in a pipeline above the pressure automatic opening and closing valve, and accumulated oil in the server is refluxed to the main oil return pipe under the siphon action; the upper end of the main oil return pipe is closed; a siphon component is additionally arranged between an oil return port and a branch oil return pipe of the server; the pressure automatic opening and closing valve is mechanical.
2. The liquid-cooled heat sink self-priming reflow mechanism of claim 1, wherein: the branch oil return pipes are multiple, and each branch oil return pipe is connected to the pipe body of the total oil return pipe in a sealing mode.
3. The liquid-cooled heat sink self-priming reflow mechanism of claim 2, wherein: the siphon component mainly comprises a vertical conical pipe and a gas barrier, wherein the upper pipe section of the conical pipe is tapered from top to bottom, the lower pipe section of the conical pipe is a straight pipe section which is the same as the pipe diameter of the branch oil return pipe, the gas barrier is fixed at the pipe orifice at the upper end of the conical pipe and covers the pipe orifice, the gas barrier is provided with a plurality of through holes communicated with the straight pipe section, the total area of each through hole is larger than or equal to the pipe orifice area of the straight pipe section, the gas barrier is connected with the oil return port of the server, and the lower pipe section of the conical pipe is in butt joint with the branch oil return pipe into a whole.
4. The liquid-cooled heat sink self-priming reflow mechanism of claim 3, wherein: the overflow holes are arc holes uniformly formed along the same circumference of the air isolation plate.
5. The liquid-cooled heat sink self-priming reflow mechanism of claim 4, wherein: the outer hole edge of the overflow hole is vertically aligned with the inner wall surface of the upper end of the conical tube.
6. The liquid-cooled heat sink self-priming reflow mechanism of claim 5, wherein: the air isolation plate extends outwards along the radial direction to form a connecting edge, and the connecting edge is connected with the sealing structure of the oil return opening.
7. The liquid-cooled heat sink self-priming reflow mechanism of claim 2, wherein: the siphon component mainly comprises an air isolation plate, a cushion block, a supporting plate, an outer pipe, an inner pipe, a partition pipe and a sealing plate, wherein the air isolation plate is a complete plate body and is positioned above the supporting plate, a plurality of cushion blocks are arranged between the air isolation plate and the supporting plate along the circumference at intervals to form gaps between the air isolation plate and the supporting plate, a plurality of through holes are formed in the supporting plate, the outer pipe is vertically arranged, the upper end of the outer pipe is connected to the lower surface of the supporting plate, the center of the sealing plate is provided with a hole, the outer plate of the sealing plate is circumferentially connected with the lower end pipe orifice of the outer pipe, a short tubular partition pipe is arranged in the outer pipe, the upper end of the partition pipe is connected to the lower surface of the supporting plate, a first annular gap is formed between the outer pipe and the partition pipe, the through holes correspond to the first annular gap and are vertically inserted into the central hole of the sealing plate, the upper end of the inner pipe extends into the lower pipe orifice of the partition pipe and is provided with a second annular gap between the upper end of the inner pipe, the total area of each through hole is larger than or equal to the pipe orifice of the inner pipe, the support plate is connected with an oil return port of the server, and the oil return port of the inner pipe is connected with the inner pipe through the same with the cooling port, and the partition pipe and the inner pipe and the cooling port and the partition pipe and the cooling pipe and the inner pipe are integrally connected with the cooling pipe.
8. The liquid-cooled heat sink self-priming reflow mechanism of claim 7, wherein: the overflow holes are arc-shaped holes uniformly arranged along the same circumference of the supporting plate, the inner holes of the overflow holes are vertically aligned with the outer pipe wall of the isolation pipe, and the outer hole edges of the overflow holes are vertically aligned with the inner pipe wall of the outer pipe.
9. The liquid-cooled heat sink self-priming reflow mechanism of claim 8, wherein: the supporting plate extends to the outside of the outer plate edge of the air isolation plate along the radial direction to form a connecting edge, and the outer edge of the connecting edge is connected with the sealing structure of the oil return opening, so that the third annular gap is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185144.7A CN108323120B (en) | 2018-03-07 | 2018-03-07 | Liquid cooling heat dissipation is from inhaling formula reflow mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810185144.7A CN108323120B (en) | 2018-03-07 | 2018-03-07 | Liquid cooling heat dissipation is from inhaling formula reflow mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108323120A CN108323120A (en) | 2018-07-24 |
| CN108323120B true CN108323120B (en) | 2023-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810185144.7A Active CN108323120B (en) | 2018-03-07 | 2018-03-07 | Liquid cooling heat dissipation is from inhaling formula reflow mechanism |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| US11317535B2 (en) * | 2012-02-07 | 2022-04-26 | Chilldyne, Inc. | Computer cooling system and method of use |
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