A coolant distribution assembly for a heat dissipation plate and a heat dissipation plate

Abstract

The present invention relates to the technical field of liquid cooling, and discloses a coolant distribution assembly for a heat dissipation plate and a heat dissipation plate, including a heat dissipation fan, a liquid cooling pump and a coolant distribution assembly of the heat dissipation plate. The coolant distribution assembly of the heat dissipation plate includes a number of distribution assemblies. Heat exchanges with the heat exchange tubes, so that the heat is conducted into the air chamber through the heat conduction columns above the heat conduction sheets, causing the expansion gas in the air chamber to expand due to heat. Furthermore, it prompts the corrugated airbag to expand and push the extrusion roller to slide on the inclined guide rail. When the corrugated airbag contracts, it will be reset by the reset spring. At this time, the sliding position of the extrusion roller will change with the expansion and contraction of the corrugated airbag, thereby changing the degree of extrusion of the elastic rubber tube and adjusting the flow rate of the coolant passing through the elastic rubber tube. On the basis of not increasing the equipment cost, it ensures that the heat can be evenly dissipated from the equipment, automatically distributes the coolant for heat dissipation plates with different heat amounts, and makes the heat dissipation uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling, and in particular to a coolant distribution assembly for a heat dissipation plate and a heat dissipation plate. Background Art

[0002] A heat dissipation plate assembly is composed of a heat dissipation plate and a coolant. The heat dissipation plate is a metal plate with good heat conduction performance, usually made of aluminum alloy or copper. The coolant is a liquid with good heat conduction performance, usually made of water or ethylene glycol.

[0003] Currently, in high-power electronic devices, heat dissipation is required for multiple parts. Therefore, multiple sets of heat dissipation plates are needed. The multiple sets of heat dissipation plates are distributed in different parts of the electronic device to ensure that heat can be evenly dissipated from the device. However, since the heating temperature of some parts is high and that of some components is low, if the coolant cannot be well distributed, uneven heat dissipation will occur.

[0004] To solve such problems, more complex design and control technologies are usually adopted. For example, multiple pumps and valves are used to achieve more precise control of the coolant flow rate, or sensors are used to monitor the temperature and pressure of the coolant in order to timely adjust the coolant flow rate and pressure. This undoubtedly increases the equipment cost, leads to difficult maintenance, and increases the maintenance cost. Summary of the Invention

[0005] The purpose of the present invention is to provide a coolant distribution assembly for a heat dissipation plate and a heat dissipation plate, aiming to solve the problems of high cost and difficult maintenance of the existing liquid cooling distribution device.

[0006] The present invention is implemented as follows. A coolant distribution assembly for a heat dissipation plate includes a heat dissipation fan, a liquid cooling pump, and a coolant distribution assembly of the heat dissipation plate. The coolant distribution assembly of the heat dissipation plate includes a number of distribution assemblies. Inside the number of distribution assemblies, a pipe rack and an air chamber are respectively arranged up and down.

[0007] An elastic rubber tube is arranged inside the pipe rack. The two ends of the elastic rubber tube are respectively provided with a second liquid inlet joint and a second liquid outlet joint extending outside the coolant distribution assembly of the heat dissipation plate. A guide rail is arranged on the inner side of the bottom of the pipe rack. A sliding bracket is sleeved outside the air chamber. An extrusion roller sliding in the guide rail is installed on the inner side of the bottom of the sliding bracket.

[0008] A thermal conductive sheet is installed at the bottom of the gas bin, a heat exchange tube is laid inside the thermal conductive sheet, and a first liquid outlet joint and a first liquid inlet joint extending to the outside of the coolant distribution assembly of the heat sink are respectively provided at both ends of the heat exchange tube. A plurality of thermal conductive columns penetrating through and extending into the gas bin are installed on the top of the thermal conductive sheet, and the interior of the gas bin is filled with thermal expansion gas. A corrugated airbag is connected to the top of the gas bin through an air pipe, and the corrugated airbag is used to push the sliding bracket to slide.

[0009] Preferably, the blowing part of the heat dissipation fan is equipped with a plurality of heat dissipation fins, and the heat dissipation fins are clamped with coils;

[0010] A liquid outlet pipe is connected between the liquid outlet end of the coil and the liquid inlet end of the liquid cooling pump, and the other end of the liquid outlet pipe is connected to the liquid inlet end of the liquid cooling pump.

[0011] Preferably, a plurality of distribution components are connected to liquid outlet branch pipes via the first liquid outlet joint, and a first liquid guide pipe is connected between the plurality of liquid outlet branch pipes connected in parallel and the liquid inlet end of the coil.

[0012] Preferably, a plurality of distribution components are connected to a liquid inlet branch pipe via the second liquid inlet joint, and a second liquid guide pipe is connected between the plurality of liquid inlet branch pipes connected in parallel and the liquid outlet end of the liquid cooling pump.

[0013] Preferably, the guide rail is arranged to be inclined downward along a side away from the corrugated airbag, and the two end surfaces of the squeezing roller respectively contact with the top of the guide rail and slide along the guide rail.

[0014] Preferably, a sleeve plate is further provided at the end of the corrugated airbag, a telescopic frame is slidably mounted on the inner side of the top of the sleeve plate, and the squeezing roller is connected via a rotating shaft of the telescopic frame;

[0015] A return spring is arranged between the other side of the sleeve plate facing away from the corrugated airbag and an inner wall of one side of the distribution component.

[0016] Preferably, the distribution assembly is located at the top bearing of the pipe rack and is connected to a manual adjustment rod, the external thread of the manual adjustment rod is connected to a shift block, and the shift block is in contact with a side of the sliding bracket close to the corrugated airbag.

[0017] Preferably, contacts are installed on the side of the sliding bracket facing away from the corrugated airbag and the inner wall of one side of the distribution component, and the two contacts are arranged opposite to each other.

[0018] A heat sink, a coolant distribution assembly used for the heat sink, comprises a plurality of heat sinks, a liquid injection pipe is connected between the liquid inlet end of the heat sink and the second liquid outlet joint, and a liquid return pipe is connected between the liquid outlet end of the heat sink and the first liquid inlet joint.

[0019] The beneficial effects of the coolant distribution component for the heat dissipation plate and the heat dissipation plate disclosed in the present invention are as follows: When the coolant exchanged by the heat dissipation plate enters the distribution component through the return pipe, heat will be exchanged with the heat exchange pipe, and the heat will be conducted into the air chamber through the heat conduction column above the heat conduction plate, causing the expansion gas in the air chamber to expand due to heat. Then, it promotes the expansion of the corrugated airbag to push the extrusion roller to slide on the inclined guide rail. When the corrugated airbag contracts, it will be reset by the reset spring. At this time, the sliding position of the extrusion roller will change with the expansion and contraction of the corrugated airbag, thereby changing the degree of extrusion of the elastic rubber tube and adjusting the flow rate of the coolant passing through the elastic rubber tube. Without increasing the equipment cost, it ensures that heat can be evenly dissipated from the equipment, automatically distributes the coolant for heat dissipation plates with different heat amounts, and makes the heat dissipation uniform. Brief Description of the Drawings

[0020] Figure 1 FIG. is a schematic diagram of a coolant distribution component for a heat dissipation plate and a heat dissipation plate provided by an embodiment of the present invention;

[0021] Figure 2 FIG. is a schematic diagram of a coolant distribution component for a heat dissipation plate provided by an embodiment of the present invention;

[0022] Figure 3 FIG. is a schematic diagram of the interior of a distribution component of a coolant distribution component for a heat dissipation plate provided by an embodiment of the present invention;

[0023] Figure 4 FIG. is a schematic cross-sectional structure diagram of a distribution component of a coolant distribution component for a heat dissipation plate provided by an embodiment of the present invention;

[0024] Figure 5 FIG. is a schematic diagram of a partial structure of a coolant distribution component for a heat dissipation plate provided by an embodiment of the present invention.

[0025] Marking Explanation:

[0026] 1. Heat dissipation fan; 2. Liquid cooling pump; 3. Coolant distribution component of the heat dissipation plate; 4. Heat dissipation plate; 5. First liquid guide pipe; 6. Liquid outlet pipe; 7. Second liquid guide pipe; 8. Liquid injection pipe; 9. Return pipe;

[0027] 11. Heat dissipation fins; 12. Coiled pipe; 51. Liquid outlet branch pipe; 71. Liquid inlet branch pipe;

[0028] 31. Distribution component; 32. Air chamber; 33. Pipe rack;

[0029] 311. Manual adjustment rod; 312. Dial block;

[0030] 321. Heat conduction plate; 322. Heat conduction column; 323. Air pipe; 324. Corrugated airbag; 325. Sleeve plate; 326. Reset spring;

[0031] 3251, telescopic frame; 3252, squeezing roller; 3253, sliding bracket; 3254, contact point;

[0032] 331, elastic hose; 332, guide rail;

[0033] 3211, first liquid outlet joint; 3212, first liquid inlet joint; 3213, heat exchange tube;

[0034] 3311, second liquid inlet connector; 3312, second liquid outlet connector. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0038] In this embodiment:

[0039] Reference Figures 1-3 As shown, a preferred embodiment of the present invention is provided.

[0040] The cooling liquid distribution assembly of the heat sink of this embodiment includes a cooling fan 1, a liquid cooling pump 2 and a cooling liquid distribution assembly 3 of the heat sink, wherein the cooling liquid distribution assembly 3 of the heat sink includes a plurality of distribution assemblies 31, and a pipe rack 33 and a gas bin 32 are respectively arranged in the upper and lower parts of the plurality of distribution assemblies 31;

[0041] An elastic hose 331 is arranged inside the pipe rack 33, and a second liquid inlet joint 3311 and a second liquid outlet joint 3312 extending to the outside of the cooling liquid distribution assembly 3 of the heat sink are arranged at both ends of the elastic hose 331, respectively. The cooling liquid enters the elastic hose 331 from the second liquid inlet joint 3311 and flows out from the second liquid outlet joint 3312. A guide rail 332 is arranged on the inner side of the bottom of the pipe rack 33, and a sliding bracket 3253 is sleeved on the outside of the air chamber 32. An extrusion roller 3252 that slides in the guide rail 332 is installed on the inner side of the bottom of the sliding bracket 3253. The extrusion roller 3252 slides on the guide rail 332 and is used to squeeze and release the elastic hose 331 to adjust the flow of the cooling liquid entering the elastic hose 331.

[0042] A thermal conductive sheet 321 is installed at the bottom of the gas bin 32, and a heat exchange tube 3213 is laid inside the thermal conductive sheet 321. The two ends of the heat exchange tube 3213 are respectively provided with a first liquid outlet joint 3211 and a first liquid inlet joint 3212 extending to the outside of the coolant distribution assembly 3 of the heat sink. The coolant enters the heat exchange tube 3213 from the first liquid inlet joint 3212 and flows out from the first liquid outlet joint 3211, so that the heat of the coolant is exchanged with the heat exchange tube 3213. A plurality of thermal conductive columns 322 that penetrate and extend to the inside of the gas bin 32 are installed on the top of the thermal conductive sheet 321. The inside of the gas bin 32 is filled with heat expansion gas. The expansion gas is preferably carbon dioxide and nitrogen, which has a high thermal expansion coefficient and is safe. The top of the gas bin 32 is connected to a corrugated airbag 324 through the air pipe 323. The corrugated airbag 324 is used to push the sliding bracket 3253 to slide, thereby pushing the extrusion roller 3252 to slide.

[0043] Among them, the blowing part of the heat dissipation fan 1 is equipped with a plurality of heat dissipation fins 11, and a coil 12 is clamped in the heat dissipation fin 11. A liquid outlet pipe 6 is connected between the liquid outlet end of the coil 12 and the liquid inlet end of the liquid cooling pump 2. The other end of the liquid outlet pipe 6 is connected to the liquid inlet end of the liquid cooling pump 2. After the coolant is pumped into the coil 12 through the liquid cooling pump 2, it is cooled by the heat dissipation fan 1 in cooperation with the heat dissipation fins 11.

[0044] Furthermore, in the attached Figure 2 In the embodiment, a plurality of distribution components 31 are connected to a liquid outlet branch pipe 51 through the first liquid outlet joint 3211, a plurality of the liquid outlet branch pipes 51 are connected in parallel with the liquid inlet end of the coil 12, a plurality of distribution components 31 are connected to a liquid inlet branch pipe 71 through the second liquid inlet joint 3311, a plurality of the liquid inlet branch pipes 71 are connected in parallel with the liquid outlet end of the liquid cooling pump 2, and a second liquid guiding pipe 7 is connected. This enables a group of heat dissipation fans 1 and a liquid cooling pump 2 to realize the circulation operation of the cooling liquid for a plurality of distribution components 31 under the action of the liquid outlet branch pipe 51 and the liquid inlet branch pipe 71;

[0045] It is worth noting that in the attached Figures 4-5 In the embodiment, the guide rail 332 is tilted downwardly along a side away from the corrugated airbag 324, and the two end surfaces of the squeezing roller 3252 respectively contact the top of the guide rail 332 and slide along the guide rail 332, so that the squeezing roller 3252 will continuously squeeze the elastic hose 331 or continuously release the elastic hose 331 during the sliding process along the guide rail 332, so as to achieve the above-mentioned regulation of the flow rate of the coolant passing through the elastic hose 331.

[0046] In order to adapt to the sliding process of the squeezing roller 3252 to rise and fall along with the guide rail 332, a sleeve plate 325 is further provided at the end of the corrugated airbag 324, and a telescopic frame 3251 is slidably installed on the inner side of the top of the sleeve plate 325. The squeezing roller 3252 is connected through the rotating shaft of the telescopic frame 3251. When the squeezing roller 3252 rises along with the guide rail 332, the telescopic frame 3251 extends out from the sleeve plate 325. When the squeezing roller 3252 falls along with the guide rail 332, the telescopic frame 3251 retracts into the sleeve plate 325, which does not affect the squeezing roller 3252 to achieve pushing along with the expansion and contraction of the corrugated airbag 324;

[0047] It is worth noting that a return spring 326 is arranged between the other side of the sleeve plate 325 away from the corrugated airbag 324 and the inner wall of one side of the distribution component 31. When the corrugated airbag 324 expands, the return spring 326 will be squeezed. When the corrugated airbag 324 contracts, the return spring 326 will continue to lose the applied force and return to its original position, pushing the extrusion roller 3252 to return to its original position.

[0048] In another embodiment, the distribution assembly 31 is located at the top bearing of the pipe rack 33 and is connected to a manual adjustment rod 311. The external thread of the manual adjustment rod 311 is connected to a shift block 312. The shift block 312 is in conflict with the side of the sliding bracket 3253 close to the corrugated airbag 324. In an emergency, the manual adjustment rod 311 can be rotated to drive the shift block 312 to slide, thereby pushing the sliding bracket 3253 to drive the extrusion roller 3252 to release the elastic hose 331, thereby increasing the flow of coolant into the heat sink 4.

[0049] At the same time, contacts 3254 are installed on the side of the sliding bracket 3253 facing away from the corrugated airbag 324 and the inner wall of one side of the distribution component 31. The two contacts 3254 are arranged opposite to each other. When the two contacts 3254 are released, the external warning light and the buzzer can be turned on. At this time, the corrugated airbag 324 is in its maximum expansion, which means that the temperature of the local equipment of the heat sink 4 server has reached the maximum level of the cooling equipment, and manual heat dissipation intervention is required.

[0050] This embodiment also provides a heat sink, including a plurality of heat sinks 4, which are used to be attached to the heat dissipation parts of the cooling components required by the server. A liquid injection pipe 8 is connected between the liquid inlet end of the heat sink 4 and the second liquid outlet joint 3312, and a liquid return pipe 9 is connected between the liquid outlet end of the heat sink 4 and the first liquid inlet joint 3212. The coolant is distributed through the distribution component 31 through the liquid injection pipe 8 and the liquid return pipe 9.

[0051] Working principle: When the coolant exchanged by the heat sink 4 enters the distribution component 31 through the return pipe 9, the heat will be exchanged with the heat exchange tube 3213, so that the heat will be transferred to the air bin 32 through the heat conduction column 322 above the thermal conductive plate 321, so that the expanding gas in the air bin 32 will expand due to the heat, thereby prompting the corrugated airbag 324 to expand and push the squeezing roller 3252 to slide on the inclined guide rail 332, and the corrugated airbag 324 will be reset by the reset spring 326 when it contracts. At this time, the sliding position of the squeezing roller 3252 will expand and contract with the corrugated airbag 324, thereby changing the degree of squeezing of the elastic hose 331 and adjusting the flow of the coolant in the elastic hose 331. On the basis of not increasing the equipment cost, it is ensured that the heat can be evenly dissipated from the equipment, and the coolant is automatically distributed to the heat sinks 4 with different heat to make the heat dissipation uniform.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cooling liquid distribution assembly for a heat sink, comprising a cooling fan, a liquid cooling pump and a cooling liquid distribution assembly for a heat sink, characterized in that: The coolant distribution assembly of the heat sink comprises a plurality of distribution assemblies, and a pipe rack and a gas bin are respectively arranged in the upper and lower parts of the plurality of distribution assemblies; An elastic hose is arranged inside the pipe rack, and a second liquid inlet joint and a second liquid outlet joint extending to the outside of the coolant distribution assembly of the heat sink are arranged at both ends of the elastic hose, respectively. A guide rail is arranged inside the bottom of the pipe rack, and a sliding bracket is arranged outside the gas bin, and an extrusion roller sliding in the guide rail is installed inside the bottom of the sliding bracket; A thermal conductive sheet is installed at the bottom of the gas bin, a heat exchange pipe is laid inside the thermal conductive sheet, and a first liquid outlet joint and a first liquid inlet joint extending to the outside of the coolant distribution assembly of the heat sink are respectively provided at both ends of the heat exchange pipe. A plurality of thermal conductive columns penetrating and extending to the inside of the gas bin are installed on the top of the thermal conductive sheet. The inside of the gas bin is filled with heat expansion gas. A corrugated airbag is connected to the top of the gas bin through an air pipe, and the corrugated airbag is used to push the sliding bracket to slide; The surfaces at both ends of the squeezing roller respectively contact with the top of the guide rail and slide along the guide rail, so that the squeezing roller will continuously squeeze the elastic hose or continuously release the elastic hose during the sliding process along the guide rail to achieve flow regulation of the coolant in the elastic hose.

2. A coolant distribution assembly for a heat sink as claimed in claim 1, characterized in that: The blowing part of the heat dissipation fan is equipped with a plurality of heat dissipation fins, and the heat dissipation fins are clamped with coils; A liquid outlet pipe is connected between the liquid outlet end of the coil and the liquid inlet end of the liquid cooling pump, and the other end of the liquid outlet pipe is connected to the liquid inlet end of the liquid cooling pump.

3. A coolant distribution assembly for a heat sink as claimed in claim 2, characterized in that: A plurality of distribution components are connected to liquid outlet branch pipes through the first liquid outlet joints, and a first liquid guide pipe is connected between the plurality of liquid outlet branch pipes connected in parallel and the liquid inlet end of the coil.

4. A coolant distribution assembly for a heat sink as claimed in claim 2, characterized in that: A plurality of distribution components are connected to liquid inlet branch pipes through the second liquid inlet joint, and a second liquid guide pipe is connected between the plurality of liquid inlet branch pipes connected in parallel and the liquid outlet end of the liquid cooling pump.

5. A coolant distribution assembly for a heat sink as claimed in claim 1, characterized in that: The guide rail is arranged obliquely downward along a side away from the corrugated airbag, and the two end surfaces of the squeezing roller respectively contact with the top of the guide rail and slide along the guide rail.

6. A coolant distribution assembly for a heat sink as claimed in claim 1, characterized in that: The end of the corrugated airbag is also provided with a sleeve plate, a telescopic frame is slidably installed on the inner side of the top of the sleeve plate, and the squeezing roller is connected through the rotating shaft of the telescopic frame; A return spring is arranged between the other side of the sleeve plate facing away from the corrugated airbag and an inner wall of one side of the distribution component.

7. A coolant distribution assembly for a heat sink as claimed in claim 1, characterized in that: The distribution component is located at the top bearing of the pipe rack and is connected to a manual adjustment rod, and the external thread of the manual adjustment rod is connected to a shift block, and the shift block is in conflict with a side of the sliding bracket close to the corrugated airbag.

8. A coolant distribution assembly for a heat sink as claimed in claim 7, characterized in that: Contacts are installed on the inner wall of one side of the sliding bracket facing away from the corrugated airbag and one side of the distribution component, and the two contacts are arranged opposite to each other.

9. A heat dissipation plate, characterized in that: The coolant distribution assembly applied to the heat sink according to any one of claims 1 to 8 comprises a plurality of heat sinks, wherein a liquid injection pipe is connected between the liquid inlet end of the heat sink and the second liquid outlet joint, and a liquid return pipe is connected between the liquid outlet end of the heat sink and the first liquid inlet joint.

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