Search

CN-122028391-A - Liquid cooling heat dissipation equipment, cabinet and system

CN122028391ACN 122028391 ACN122028391 ACN 122028391ACN-122028391-A

Abstract

The invention relates to liquid cooling heat dissipation equipment, a cabinet and a system, and belongs to the field of server cooling. The liquid cooling heat dissipation device comprises a shell, a one-way valve and a regulating valve. The shell is internally provided with a containing cavity, the containing cavity is provided with a liquid area used for containing cooling liquid and a server and a gas area used for containing cooling liquid steam, the gas area is located above the liquid area, the one-way valve gas area is communicated with the side wall of the cooling cavity through the one-way valve, the one-way valve is configured to be opened for cooling liquid steam to move from the gas area to the cooling cavity when the pressure value of the gas area is larger than a first threshold value, and the regulating valve is configured to be communicated with the bottom wall of the cooling cavity when the pressure value of the gas area is larger than a second threshold value, and the first threshold value is larger than or equal to the second threshold value.

Inventors

  • SHI GUANGHUA

Assignees

  • 成都鹰皇科技有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (10)

  1. 1. The liquid cooling equipment for insert and establish in the cabinet body of liquid cooling heat dissipation rack, the internal holding chamber that holds of liquid cooling equipment and the cooling chamber that is used for condensing coolant liquid steam and collects the coolant liquid that has of cabinet, along the gravity direction, the cooling chamber is located the top of holding chamber, its characterized in that, liquid cooling equipment includes: A housing having a receiving chamber therein, the receiving chamber having a liquid region for receiving a coolant and a server and a gas region for receiving coolant vapor, the gas region being located above the liquid region; a one-way valve through which the gas region communicates with a side wall of the cooling cavity, the one-way valve being configured to open for movement of cooling liquid vapor from the gas region to the cooling cavity when a pressure value of the gas region is greater than a first threshold value; And a regulating valve configured to communicate the liquid region with the bottom wall of the cooling chamber when the pressure value of the gas region is greater than a second threshold value, the first threshold value being greater than or equal to the second threshold value.
  2. 2. The liquid-cooled heat sink apparatus of claim 1, wherein the check valve comprises: A first housing having a first opening and a second opening in the direction of gravity in communication with the interior thereof, the first opening being located above the second opening, the first opening in communication with a side wall of the cooling cavity, the second opening in communication with a top wall of the receiving cavity; The first valve core and the first elastic piece are used for providing elastic force for the first valve core so as to guide the first valve core to seal the second opening.
  3. 3. The liquid-cooled heat sink apparatus of claim 1, wherein the regulator valve comprises: The second shell is internally provided with a first cavity, a second cavity and a third cavity which are sequentially arranged and communicated along the axial direction of the second shell, the radial dimension of the first cavity is D1, the radial dimension of the second cavity is D2, and the radial dimension of the third cavity is D3, so that D1> D3> D2 is satisfied; the second valve core is provided with a first part, a second part and a third part which are sequentially connected along the axial direction of the second shell, the first part is used for dividing the first cavity into a first subchamber and a second subchamber, the third part is used for dividing the third cavity into a third subchamber and a fourth subchamber, a first flow passage which is communicated with the third subchamber and the fourth subchamber is arranged in the third part, and the first subchamber, the second cavity, the third subchamber and the fourth subchamber are sequentially arranged along the axial direction of the second shell; A second elastic member positioned in the fourth subchamber, the second elastic member being configured to provide an elastic force to the second valve element to guide the third portion to isolate the second chamber from the third subchamber; The gas area is communicated with the first subchamber, the liquid area is communicated with the second cavity, and the third cavity is communicated with the bottom wall of the cooling cavity.
  4. 4. A liquid-cooled heat sink apparatus as recited in claim 3 wherein the third section comprises: The second body portion and second convex part, the second convex part protrusion in second body portion face towards one side of first cavity, the second part keep away from the one end of first part with the second convex part deviates from the one end of second body portion is connected, the second convex part is used for inserting and establishes in the second cavity, in order to separate the second cavity with the third subcavity.
  5. 5. A liquid-cooled heat sink apparatus as claimed in claim 3, wherein a side of the third portion facing away from the first cavity is recessed to form a receiving portion for receiving a second resilient member, the first flow passage being for communicating the receiving portion with the third subchamber.
  6. 6. A liquid cooled heat sink apparatus as claimed in claim 3 wherein the first portion comprises: The first body portion and first convex part, first convex part protrusion in first body portion face towards one side of third cavity, the second part keep away from the one end of third part with first convex part deviates from first body portion's one end is connected, first convex part is used for inserting and establishes in the second cavity, in order to separate the second cavity with the second subcavity.
  7. 7. Liquid cooling heat dissipation rack, its characterized in that includes: the liquid-cooled heat sink apparatus of any one of claims 1-6, the liquid-cooled heat sink apparatus being a plurality of arranged along a first direction; The cabinet body is internally provided with a containing cavity for containing the liquid cooling heat dissipation equipment and a cooling cavity for condensing cooling liquid steam and collecting cooling liquid, the cooling cavity is positioned above the containing cavity along the gravity direction, the cabinet body is provided with a first channel and a second channel, one end of the first channel is arranged on the side wall of the cooling cavity, one end of the first channel is communicated with the one-way valve, one end of the second channel is arranged on the bottom wall of the cooling cavity, the shell is provided with a third channel corresponding to the second channel, and the other end of the third channel is communicated with the regulating valve; the separating piece is slidably arranged in the accommodating cavity along the second direction and is used for separating the second channel from the third channel, and the first direction, the second direction and the gravity direction are perpendicular to each other.
  8. 8. The liquid cooled heat sink cabinet of claim 7, further comprising: The rotatable setting of wall spare is in on the governing valve, along the gravity direction, the third passageway the wall spare, the governing valve arranges in proper order, have on the wall spare with the fourth passageway that the third passageway corresponds, rotatory the wall spare makes the fourth passageway with the third passageway aligns, in order to communicate the third passageway with the governing valve.
  9. 9. The liquid cooled heat sink cabinet of claim 8, further comprising: The periphery of the partition piece is provided with teeth which are meshed with the gear; The abutting piece rotates to drive the abutting piece to move along the gravity direction and is located on one side of the partition piece.
  10. 10. A liquid-cooled heat dissipation system, characterized in that the liquid-cooled heat dissipation system comprises a liquid-cooled heat dissipation device according to any one of claims 1-6, or a liquid-cooled heat dissipation cabinet according to any one of claims 7-9.

Description

Liquid cooling heat dissipation equipment, cabinet and system Technical Field The invention belongs to the field of server cooling, and particularly relates to liquid cooling heat dissipation equipment, a cabinet and a system. Background In the prior art, heterogeneous computing systems such as GPU (graphics processor), FPGA (field programmable gate array) and ASIC (application specific integrated circuit) are gradually developed, and the power consumption of these systems is gradually improved while the power consumption of the computing systems is gradually improved, and for example, the power consumption of a single chip can reach 300W or even 500W, and the power density of a single cabinet can reach 40kW or even 60kW, so that the heat dissipation of a server is increased, in order to improve the stability in the operation process of the server, the server is generally cooled by adopting a liquid cooling technology, which is generally divided into a submerged type and a spray type, and the submerged type cooling is generally divided into a single-phase type immersion and a phase-change type immersion according to whether the cooling liquid has a phase change (generally a gas-liquid phase change). In the immersion process, the liquid immersion server needs to be maintained in the whole process, but in a liquid cooling heat dissipation cabinet in which a cavity of the immersion server and a cavity of condensed cooling liquid are in a split design, the risk that the cooling liquid is excessively stored in the cavity of the immersion server to cause the cooling liquid steam to be difficult to discharge, or the cooling liquid is excessively stored in the cavity of the immersion server to cause the incomplete immersion of the server, so that the local temperature of the server is excessively high often occurs. Disclosure of Invention In view of the above problems, embodiments of the present application provide a liquid cooling heat dissipation device, a cabinet, and a system, which can maintain a cooling liquid immersed in a server, and facilitate the discharge of cooling liquid vapor, thereby improving the reliability of the operation of the server. In a first aspect, an embodiment of the present application provides a liquid cooling heat dissipation device, configured to be inserted into a cabinet body of a liquid cooling heat dissipation cabinet, where the cabinet body is provided with a containing cavity for containing the liquid cooling heat dissipation device and a cooling cavity for condensing cooling liquid vapor and collecting cooling liquid, and the cooling cavity is located above the containing cavity along a gravity direction, where the liquid cooling heat dissipation device includes a housing, a check valve, and a regulating valve. The housing has a receiving cavity therein, the receiving cavity having a liquid region for receiving a coolant and a server and a gas region for receiving coolant vapor, the gas region being located above the liquid region, a one-way valve through which the gas region communicates with a side wall of the cooling cavity, the one-way valve being configured to open for movement of coolant vapor from the gas region to the cooling cavity when a pressure value of the gas region is greater than a first threshold value, and a regulating valve configured to communicate the liquid region with a bottom wall of the cooling cavity when a pressure value of the gas region is greater than a second threshold value, the first threshold value being greater than or equal to the second threshold value. Specifically, since the check valve is configured to open for movement of the coolant vapor from the gas region to the cooling cavity when the pressure value of the gas region is greater than the first threshold value, the regulator valve is configured to communicate the liquid region with the bottom wall of the cooling cavity when the pressure value of the gas region is greater than the second threshold value. The receiving chamber is isolated from the cabinet when the pressure in the receiving chamber is less than a second threshold. With the operation of the server, the temperature of the server is gradually increased, so that the cooling liquid is boiled and evaporated to form cooling liquid steam, and the air pressure in the accommodating cavity is gradually increased to a second threshold value, so that the regulating valve is communicated with the liquid area and the bottom wall of the cooling cavity. Because the cooling cavity of the cabinet body is positioned above the accommodating cavity, gravitational potential energy can guide the cooling liquid to move from the cooling cavity to the liquid area of the accommodating cavity of the cold radiating device in the accommodating cavity through the regulating valve. The pressure of the cooling liquid in the liquid area, which is provided by the pressure of the cooling liquid steam to the cooling liquid in the regulating valve, is equal