CN115237223A - An immersed phase change server radiator - Google Patents

Abstract

The invention discloses an immersed phase-change server radiator, which relates to the technical field of server radiators. The solution includes a cooling unit. The cooling unit includes an immersion chamber, an air cooling chamber arranged at the upper end of the immersion chamber, a fan and a heat conduction pipe. Cooling liquid is installed, one end of the heat conduction pipe is located in the upper part of the immersion chamber, and the other end passes through the immersion chamber and the air-cooling chamber at the same time, and extends into the air-cooling chamber, and the air inside the air-cooling chamber circulates through the fan and the outside world. The server equipment that needs to be dissipated is immersed in the cooling liquid. The server equipment generates heat to heat up the cooling liquid. After the cooling liquid boils, it changes from a liquid state to a gaseous state, thereby taking away heat with the steam. In the liquid, the heat released by the condensation of the steam is absorbed by the heat pipe, which conducts the heat to its upper end and dissipates the heat to the air in the air-cooled room. The fan works to blow away the hot air in the air-cooled room to achieve heat dissipation.

Description

An immersed phase change server radiator

technical field

The invention relates to the technical field of server radiators, in particular to an immersed phase-change server radiator.

Background technique

With the advancement of science and technology and the vigorous development of big data technology, the performance requirements of server equipment are getting higher and higher, and the reliability of electronic components is more sensitive to temperature, which brings serious challenges to the traditional low-efficiency air-cooling technology. Therefore, liquid cooling Technology has gradually become a research hotspot of heat dissipation technology for high-density server equipment.

Generally, in the application of single-phase immersion liquid cooling equipment, the cooling liquid is only driven to flow in from the liquid inlet end of the server equipment and flow out from the liquid outlet end of the server equipment. Exchange, with the flow of the cooling liquid, the heat is brought to the outside of the server equipment and dissipated by the air-cooled equipment; the single-phase immersion liquid cooling equipment has the disadvantage that it needs to configure an additional driving device to drive the circulation of the cooling liquid, resulting in the overall The energy consumption is relatively large. On the other hand, the overall volume is relatively large due to the need to lay a circulating pipe to lead the circulating liquid to the air-cooled equipment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to design an immersed phase-change server radiator to reduce overall energy consumption and overall volume, so as to solve the problems raised in the background art.

In order to achieve the above object, the technical scheme adopted by the present invention is as follows:

An immersed phase-change server radiator includes a cooling unit, the cooling unit includes an immersion chamber, an air-cooling chamber provided at the upper end of the immersion chamber, a fan and a heat conduction pipe, the immersion chamber is filled with cooling liquid, and the immersion chamber The internal heat is transferred to the air-cooled room through the heat-conducting pipe, and the air in the air-cooled room circulates with the outside through the fan.

Further, one end of the heat conducting pipe is located at the upper part of the immersion chamber, and the other end passes through the immersion chamber and the air-cooling chamber at the same time, and extends into the air-cooling chamber.

Further, the cooling unit further includes a server veneer, the server veneer is fixedly arranged inside the immersion chamber, and the server veneer is immersed in the cooling liquid.

Further, the cooling liquid is non-conductive and has a gas-liquid two-phase phase transition.

Further, first heat dissipation fins are fixedly arranged on the heat conducting pipes located in the air-cooled chamber.

Further, second heat dissipation fins are fixedly arranged on the outer surface of the immersion chamber.

Further, ventilation openings are opened on both sides of the air-cooling chamber, and the fan is fixedly arranged at the ventilation openings.

Further, it also includes a controller, a pressure sensor and a temperature sensor, the pressure sensor and the temperature sensor are both signally connected to the controller, and both the pressure sensor and the temperature sensor are arranged in the immersion chamber.

Further, it also includes a chassis, at least one set of the cooling units, and the cooling units are fixedly arranged in the chassis.

The beneficial effects of the present invention are: by designing the immersion chamber and the air-cooled chamber, the air-cooled chamber is directly arranged on the upper end of the immersion chamber. The air-cooling chamber is separated, and there is no need to design a circulation pipe, so the overall volume is greatly reduced; on the other hand, by immersing the server equipment that needs heat dissipation in the cooling liquid, when the server equipment is hot during operation, the cooling liquid is heated up and the cooling liquid is heated. After boiling, it transforms from liquid to gaseous state, so that heat is carried away with the steam. The steam condenses on the heat pipe above to form a liquid state and drops into the cooling liquid. The heat released by the condensation of the steam is absorbed by the heat pipe, and the heat pipe conducts the heat to its The upper end dissipates the heat into the air in the air-cooled room. The fan works to make the air inside the air-cooled room flow and blow away the hot air in the air-cooled room, so as to realize heat dissipation. Compared with the traditional technology, the present invention does not require additional configuration of drive The equipment drives the circulation of the cooling liquid, which greatly reduces the energy consumption required for the operation of the equipment.

Description of drawings

Fig. 1 is the structural schematic diagram of the cooling unit of the first embodiment;

2 is a schematic structural diagram of the cooling unit of the second embodiment;

The reference numbers are:

Immersion chamber 11 , second cooling fin 111 , air cooling chamber 12 , fan 13 , heat pipe 14 , first cooling fin 141 , third cooling fin 142 , server board 15 , cooling liquid 16 .

Detailed ways

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings; many specific details are set forth in the following description to facilitate a full understanding of the present invention; but The present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. The following combination The accompanying drawings further illustrate the invention.

Example 1

As shown in FIG. 1, an immersed phase change server radiator includes a chassis, a cooling unit, a controller, a pressure sensor and a temperature sensor. The cooling unit includes an immersion chamber 11, an air-cooling chamber 12 provided on the upper end of the immersion chamber 11, Fan 13 , heat pipe 14 and server board 15 .

The immersion chamber 11 is in a sealed state, and the heat-conducting pipe 14 is made of high heat-conducting material.

The immersion chamber 11 is filled with a cooling liquid 16. The cooling liquid 16 is a cooling liquid 16 that is non-conductive and has a gas-liquid two-phase phase transition. In this embodiment, the cooling liquid 16 adopts FC-3160 fluorinated liquid. FC-3160 fluorinated liquid has the inert characteristics of low boiling point, insulation and non-combustibility, and its surface tension is low, which can penetrate into small gaps, and has excellent thermal conductivity and chemical Stability, will not cause damage to the surface of plastics, resins, metals and other materials, and can be used repeatedly.

The heat inside the immersion chamber 11 is transferred to the air-cooling chamber 12 through the heat-conducting pipe 14. The specific structure is as follows: one end of the heat-conducting pipe 14 is located at the upper part of the immersion chamber 11, and the other end passes through the immersion chamber 11 and the air-cooling chamber 12 at the same time, and It extends into the air-cooling chamber 12, and the air in the air-cooling chamber 12 circulates with the outside through the fan 13. The specific structure is as follows: the air-cooling chamber 12 is provided with ventilation openings on both sides, the fan 13 is fixedly arranged at the ventilation opening, and the fan 13 During operation, the air outside the air-cooling chamber 12 is blown into the air-cooling chamber 12 from the vent on one side, and blown out from the vent on the other side.

The server veneer 15 is fixedly arranged inside the immersion chamber 11, and the server veneer 15 is immersed in the cooling liquid 16. When in use, the server equipment is fixed on the server veneer 15, and the server equipment is immersed in the cooling liquid 16. The equipment generates heat during operation, which makes the cooling liquid 16 heat up. After the cooling liquid 16 boils, it changes from a liquid state to a gaseous state, thereby taking away heat with the steam. The steam condenses on the heat pipe 14 above to form a liquid state and drops into the cooling liquid 16. The steam condenses The released heat is absorbed by the heat transfer pipe 14 , the heat transfer pipe 14 conducts the heat to its upper end located in the air-cooled chamber 12 , and dissipates the heat into the air in the air-cooled chamber 12 , and the fan 13 works to make the interior of the air-cooled chamber 12 . The air flows and blows away the hot air in the air-cooling chamber 12, thereby realizing heat dissipation.

The first heat dissipation fins 141 are fixed on the heat pipe 14 located in the air-cooling chamber 12 .

The third heat dissipation fins 142 are fixed on the heat pipe 4 located in the immersion chamber 11 .

The second heat dissipation fins 111 are fixedly arranged on the outer surface of the immersion chamber 11. When the server equipment generates heat and makes the cooling liquid 16 warm up, the cooling liquid 16 conducts the heat to the immersion chamber 11, and the immersion chamber 11 conducts the heat to the first heat dissipation chamber 11. The two heat dissipation fins 111 dissipate heat into the air through the second heat dissipation fins 111, thereby further accelerating heat dissipation.

Both the pressure sensor and the temperature sensor are signal-connected to the controller, and the pressure sensor and the temperature sensor are both arranged in the immersion chamber 11. By designing the pressure sensor and the temperature sensor, the temperature and pressure in the immersion chamber 11 can be monitored in real time.

There is at least one set of cooling units, and the cooling units are fixedly arranged in the chassis.

The working principle of the present invention is as follows: when in use, the server equipment is fixed on the server single board 15, and the server equipment is immersed in the cooling liquid 16, the server equipment generates heat during operation, and the cooling liquid 16 is heated up, and the cooling liquid 16 boils from a liquid state It is converted into a gaseous state, so as to take away heat with the steam, the steam condenses on the heat pipe 14 above to form a liquid state and drops into the cooling liquid 16, the heat released by the condensation of the steam is absorbed by the heat pipe 14, and the heat pipe 14 conducts the heat to the cooling liquid 16. It is located at the upper end of the air-cooled chamber 12 and dissipates the heat into the air in the air-cooled chamber 12. At the same time, the heat transfer pipe 14 conducts the heat to the first heat dissipation fins 141, and accelerates the heat dissipation through the first heat dissipation fins 141. The fan 13 works to make the air inside the air-cooling chamber 12 flow, blowing away the hot air in the air-cooling chamber 12, so as to realize heat dissipation.

On the other hand, when the server equipment generates heat and makes the cooling liquid 16 warm up, the cooling liquid 16 conducts the heat to the immersion chamber 11 , and the immersion chamber 11 conducts the heat to the second heat dissipation fins 111 , and the second heat dissipation fins 111 pass the heat. Dissipates heat into the air to further accelerate heat dissipation.

Embodiment 2

An immersed phase change server radiator as shown in FIG. 2 includes a chassis, a cooling unit, a controller, a pressure sensor and a temperature sensor. Fan 13 , heat pipe 14 and server board 15 .

The immersion chamber 11 is in a sealed state, and the heat-conducting pipe 14 is made of high heat-conducting material.

The immersion chamber 11 is filled with a cooling liquid 16. The cooling liquid 16 is a cooling liquid 16 that is non-conductive and has a gas-liquid two-phase phase transition. In this embodiment, the cooling liquid 16 adopts FC-3160 fluorinated liquid. FC-3160 fluorinated liquid has the inert characteristics of low boiling point, insulation and non-combustibility, and its surface tension is low, which can penetrate into small gaps, and has excellent thermal conductivity and chemical Stability, will not cause damage to the surface of plastics, resins, metals and other materials, and can be used repeatedly.

The heat inside the immersion chamber 11 is transferred to the air-cooling chamber 12 through the heat transfer pipe 14, and the specific structure is: a capillary force device is placed inside the heat transfer pipe 14, and the capillary force device is a foam metal, a ceramic microstructure hollow tube, or One of the inner wall groove structures can increase the capillary force inside the heat transfer pipe 14. In this embodiment, the inside of the heat transfer pipe 14 adopts a structure where foam metal is placed, and the porous metal foam is used to increase the contact with the air. The lower end of the heat pipe 14 is open, and the lower end of the heat pipe 14 passes through the upper end of the immersion chamber 11 , so that the inner space of the heat pipe 14 and the upper space in the immersion chamber 11 communicate with each other.

The air in the air-cooling chamber 12 circulates with the outside through the fan 13, and the specific structure is as follows: the two sides of the air-cooling chamber 12 are provided with ventilation openings, and the fan 13 is fixedly arranged at the ventilation opening. Outside air is blown into the air-cooling chamber 12 from a vent on one side thereof, and is blown out from a vent on the other side thereof.

The server veneer 15 is fixedly arranged inside the immersion chamber 11, and the server veneer 15 is immersed in the cooling liquid 16. When in use, the server equipment is fixed on the server veneer 15, and the server equipment is immersed in the cooling liquid 16. The equipment generates heat during operation, which increases the temperature of the cooling liquid 16. After the cooling liquid 16 boils, it is transformed from a liquid state to a gaseous state, thereby taking away heat with the steam.

The steam enters the interior of the heat transfer pipe 14 through the lower end of the heat transfer pipe 14, and condenses into a liquid state after encountering the foam metal and drops to the lower part of the immersion chamber 11. The heat released by the condensation of the steam is absorbed by the foam metal and the heat transfer pipe 14, and the foam metal converts the heat. Conducted to the heat transfer pipe 14, the heat transfer pipe 14 dissipates heat into the air in the air cooling chamber 12, and the fan 13 works to make the air flow inside the air cooling chamber 12, blowing away the hot air in the air cooling chamber 12, thereby realizing heat dissipation.

The first heat dissipation fins 141 are fixed on the heat pipe 14 located in the air-cooling chamber 12 .

Both the pressure sensor and the temperature sensor are signal-connected to the controller, and the pressure sensor and the temperature sensor are both arranged in the immersion chamber 11. By designing the pressure sensor and the temperature sensor, the temperature and pressure in the immersion chamber 11 can be monitored in real time.

There is at least one set of cooling units, and the cooling units are fixedly arranged in the chassis.

The working principle of the present invention is as follows: when in use, the server equipment is fixed on the server single board 15, and the server equipment is immersed in the cooling liquid 16, the server equipment generates heat during operation, and the cooling liquid 16 is heated up, and the cooling liquid 16 boils from a liquid state It is converted into a gaseous state, thereby taking away heat with the steam. The steam enters the interior of the heat-conducting pipe 14 through the lower end of the heat-conducting pipe 14, and condenses into a liquid state after encountering the foam metal and drops to the lower part of the immersion chamber 11. The heat released by the condensation of the steam is absorbed by the foam. The metal and the heat pipe 14 absorb the heat, the foam metal conducts the heat to the heat pipe 14, and the heat pipe 14 dissipates the heat to the air in the air-cooled chamber 12. At the same time, the heat pipe 14 conducts the heat to the first heat dissipation fins 141, The first heat dissipation fins 141 accelerate the heat dissipation into the air; the fan 13 works to make the air flow inside the air-cooling chamber 12 to blow away the hot air in the air-cooling chamber 12, thereby realizing heat dissipation.

The above disclosures are only the preferred embodiments of the present invention, which cannot be used to limit the protection scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope of the present invention. No limitation is placed on the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (9)

1. An immersed phase change server radiator, characterized in that: the cooling unit comprises an immersion chamber, an air cooling chamber arranged at the upper end of the immersion chamber, a fan and a heat conduction pipe, wherein cooling liquid is filled in the immersion chamber, heat inside the immersion chamber is transferred to the air cooling chamber through the heat conduction pipe, and air inside the air cooling chamber circularly flows with the outside through the fan.

2. An immersed phase change server heat sink as claimed in claim 1, wherein: one end of the heat conduction pipe is located on the upper portion of the immersion chamber, and the other end of the heat conduction pipe penetrates through the immersion chamber and the air cooling chamber and extends into the air cooling chamber.

3. The submerged phase change server radiator of claim 1, wherein: the cooling unit further comprises a server single plate, the server single plate is fixedly arranged inside the immersion chamber, and the server single plate is immersed in the cooling liquid.

4. An immersed phase change server heat sink as claimed in claim 1, wherein: the cooling liquid is non-conductive and has gas-liquid two-phase change.

5. The submerged phase change server radiator of claim 1, wherein: and a first radiating fin is fixedly arranged on the heat conducting pipe positioned in the air cooling chamber.

6. An immersed phase change server heat sink as claimed in claim 1, wherein: and a second radiating fin is fixedly arranged on the outer side surface of the immersion chamber.

7. An immersed phase change server heat sink as claimed in claim 1, wherein: the air cooling chamber is provided with ventilation openings on two sides, and the fan is fixedly arranged at the ventilation openings.

8. An immersed phase change server heat sink as claimed in claim 1, wherein: the device is characterized by further comprising a controller, a pressure sensor and a temperature sensor, wherein the pressure sensor and the temperature sensor are in signal connection with the controller, and are arranged in the immersion chamber.

9. An immersion phase change server heat sink as claimed in any one of claims 1 to 8, wherein: the cooling device is characterized by further comprising a case, wherein at least one group of cooling units is arranged in the case, and the cooling units are fixedly arranged in the case.

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