CN221448964U - Cabinet type server and liquid cooling system thereof - Google Patents

Abstract

The utility model relates to the technical field of cooling systems, and particularly discloses a liquid cooling system of a cabinet server, which comprises the following components: the back plate refrigerating module comprises a first fan and a first heat exchanger, the first heat exchanger is arranged on one side of the cabinet server, and the first fan is used for driving airflow to flow to the first heat exchanger; at least one liquid cooling plate, each liquid cooling plate is respectively attached to the heating element of the cabinet server; the plug frame refrigerating module comprises a compressor, a condenser and a second heat exchanger which are respectively arranged in the cabinet type server, wherein the second heat exchanger is provided with a water cooling channel and a refrigerant channel, each liquid cooling plate and each first heat exchanger are respectively communicated with the water cooling channel, and the compressor, the condenser and the refrigerant channel are connected in series so as to cool the water cooling channel. The liquid cooling system improves cooling efficiency. The utility model also discloses a cabinet server which has the technical effects.

Description

Cabinet type server and liquid cooling system thereof

Technical Field

The utility model relates to the technical field of cooling systems, in particular to a cabinet type server and a liquid cooling system thereof.

Background

With the increase of the power density of the server chip, a higher requirement is put forward on heat dissipation, the existing common air cooling heat exchange mode cannot meet the high power density heat exchange requirement, and liquid cooling is used as an efficient heat exchange and energy-saving alternative scheme and gradually replaces the existing air cooling technology.

At present, the liquid cooling of the cabinet server is mainly performed in a cold plate type liquid cooling mode. The cold plate type liquid cooling mode is also called as a liquid cooling plate, the liquid cooling plate performs cold-heat exchange with a chip with high heat productivity of a server and the like, and heat is rapidly transferred to the outside of the cabinet through a heat exchange system connected with the liquid cooling plate. Because the heat exchange system of the liquid cooling plate needs to be laid out and installed in a small space and connected through multiple pipelines, the layout difficulty and complexity of the space are brought, the heat exchange cycle of the air path with the air path compatible system is blocked to a certain extent, the efficiency loss is brought, and the efficiency maximization cannot be achieved.

In summary, how to effectively solve the problems that the cooling efficiency of the rack server is difficult to meet the requirements is a problem that needs to be solved by those skilled in the art at present.

Disclosure of utility model

Accordingly, the present utility model is directed to a rack server and a liquid cooling system thereof, which can effectively solve the problem that the cooling efficiency of the rack server is difficult to meet the requirement.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a liquid-cooled cooling system for a rack server, comprising:

The back plate refrigeration module comprises a first fan and a first heat exchanger, wherein the first heat exchanger is arranged on one side of the cabinet server, and the first fan is used for driving airflow to flow to the first heat exchanger;

At least one liquid cooling plate, each liquid cooling plate is respectively attached to the heating element of the cabinet server;

The plug frame refrigerating module comprises a compressor, a condenser and a second heat exchanger which are respectively arranged in the cabinet server, wherein the second heat exchanger is provided with a water cooling channel and a refrigerant channel, each liquid cooling plate and the first heat exchanger are respectively communicated with the water cooling channel, and the compressor, the condenser and the refrigerant channel are connected in series so as to cool the water cooling channel.

Optionally, the above liquid cooling system further includes a water collector and/or a water separator, where the water collector has a plurality of inlets and is connected to the outlets of the liquid cooling plates respectively, and the outlet of the water collector is connected to the inlet of the water cooling channel;

The water separator is provided with a plurality of outlets and is respectively connected with the inlets of the liquid cooling plates, and the inlet of the water separator is connected with the outlet of the water cooling channel.

Optionally, in the above liquid cooling system, a flow regulating valve or an electromagnetic valve is connected between the first heat exchanger and the water cooling channel, and the flow regulating valve or the electromagnetic valve is used for regulating the flow of the first heat exchanger.

Optionally, the above liquid cooling system further includes at least one of a first temperature sensor for detecting a temperature of the fluid in the first heat exchanger, a first pressure sensor for detecting a pressure of the fluid in the first heat exchanger, and a second pressure sensor for detecting a pressure of the inlet of the first heat exchanger and the outlet of the first heat exchanger, respectively;

the flow regulating valve or the electromagnetic valve is used for increasing the flow of the first heat exchanger when the temperature detected by the first temperature sensor is higher than a first preset temperature, the pressure detected by the first pressure sensor is higher than a preset pressure or the pressure difference detected by the second preset pressure sensor is larger than a preset pressure difference.

Optionally, in the above liquid cooling system, the liquid cooling system further includes a second temperature sensor for detecting a temperature of the heating element, and the compressor is configured to increase the rotational speed when the temperature detected by the second temperature sensor is higher than a second preset temperature.

Optionally, in the above liquid cooling system, the plug frame refrigeration module has a cold-hot partition board, the cold-hot partition board divides the interior of the plug frame refrigeration module into a first cavity and a second cavity, the second heat exchanger is disposed in the first cavity, and the condenser and the compressor are disposed in the second cavity.

Optionally, in the above liquid cooling system, the condenser is an air-cooled condenser, and the plug-in frame refrigeration module includes a second fan for cooling the air-cooled condenser, where the second fan is disposed in the second cavity.

Optionally, in the above liquid cooling system, the liquid cooling system further includes a first air duct and a second air duct that are respectively communicated with the second cavity, the first air duct and the second air duct are both communicated with the outdoor environment, and openings of the first air duct and the second air duct are respectively located at different sides of the cabinet server.

Optionally, in the above liquid cooling system, the condenser is a condensation plate exchanger, the compressor is communicated with a first channel of the condensation plate exchanger, and a second channel of the condensation plate exchanger is used for being externally connected to a cooling tower outside the cabinet server.

Optionally, in the above liquid cooling system, the liquid cooling plate is provided with a plurality of driving pumps, each driving pump corresponds to at least one liquid cooling plate, and each driving pump is connected between the corresponding liquid cooling plate and the corresponding water cooling channel.

The liquid cooling system of the cabinet server provided by the utility model is characterized in that the back plate refrigerating module, the liquid cooling plate and the plug frame refrigerating module are combined, and the liquid cooling plate is attached to the heating element of the cabinet server and is used for cooling the high heating element in the cabinet server; the back plate refrigeration module is used for radiating heat to the internal environment of the cabinet server so as to cool auxiliary devices and the like except for the high-heat-generating element. The plug frame refrigerating module is used for cooling the liquid cooling plate and the backboard refrigerating module so as to take away heat after heat exchange with the high heating element or the environment. According to the liquid cooling system, multistage heat dissipation to the environment and the high heating element is achieved through the back plate refrigerating module and the liquid cooling plate, and the cooling efficiency is improved. In addition, the compressor, the condenser and the second heat exchanger of the plug-in frame refrigerating module are integrated in the cabinet type server, the cooling loop is short, the cold energy loss is low, and compared with an external air conditioner, the efficiency is higher. And the modular design is adopted, so that the space utilization rate is high, the structure is compact, and the cost is lower.

In order to achieve the above purpose, the utility model also provides a cabinet server, which comprises any liquid cooling system. Because the liquid cooling system has the technical effects, the cabinet server with the liquid cooling system also has the corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a liquid cooling system of a rack server according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of the plug-in frame refrigeration module in fig. 1;

fig. 3 is a connection abduction schematic diagram of the plug frame refrigeration module and the backboard refrigeration module shown in fig. 2;

FIG. 4 is a schematic diagram of another plug-in refrigeration module;

Fig. 5 is a connection abduction schematic diagram of the plug frame refrigeration module and the backboard refrigeration module shown in fig. 4.

The figures are marked as follows:

A cabinet server 1;

the back-plate refrigeration module 10, the first heat exchanger 110, the first fan 120,

The liquid-cooled plate 20 is provided with a liquid-cooling chamber,

The plug-in frame refrigerating module 30, the compressor 310, the condenser 320, the second heat exchanger 330, the cold-hot partition 340, the first cavity 350, the second cavity 360, the second fan 370, the expansion valve 380, the liquid outlet 391 and the liquid inlet 392;

Water collector 40, water separator 50, solenoid valve 60.

Detailed Description

The embodiment of the utility model discloses a cabinet type server and a liquid cooling system thereof, which are used for improving cooling efficiency.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In a specific embodiment, referring to fig. 1 to 3, the liquid cooling system of a rack server provided by the present utility model includes a back plate cooling module 10, at least one liquid cooling plate 20, and a plug frame cooling module 30. The back plate refrigeration module 10 includes a first fan 120 and a first heat exchanger 110, where the first heat exchanger 110 is disposed on one side of the cabinet server 1, and the first fan 120 and the first heat exchanger 110 may be on the same side of the cabinet server 1, or may be on two opposite sides of the cabinet server 1 respectively; at the same side, the first fan 120 is used for driving gas to flow from one side of the cabinet server 1 away from the first heat exchanger 110 to the first heat exchanger 110; on opposite sides, the first fan 120 is configured to drive the gas to flow toward the first heat exchanger 110 and then out of one side of the first fan 120. Under the action of the first fan 120, after the indoor gas of the cabinet server 1 enters the cabinet server 1, the indoor gas is discharged after being subjected to heat exchange by the first heat exchanger 110, so that heat of auxiliary devices and heat leakage of the liquid cooling plate 20 or the main chip can be taken away by the gas, and the gas with the increased temperature exchanges heat with the first heat exchanger 110. That is, the first heat exchanger 110 exchanges heat with hot air inside the cabinet server 1, or the cold air after the first heat exchanger 110 exchanges heat with hot air outside the cabinet server 1 exchanges heat with hot air inside the cabinet server 1, so that the temperature of devices with low heat dissipation density inside the cabinet server 1 is reduced.

Each liquid cooling plate 20 is attached to a heating element of the cabinet server 1. It is understood that the heat generating elements include, but are not limited to, high heat generating devices such as a main chip. The liquid cooling plate 20 is attached to the heating element, and can sufficiently absorb heat of the heating element to cool the heating element. The heat dissipation of the heating elements such as chips with high heat dissipation density is realized through the cold plate.

The plug-in frame refrigeration module 30 is an integrated closed circulation system, and comprises a compressor 310, a condenser 320 and a second heat exchanger 330 which are respectively arranged in the cabinet server 1, wherein the second heat exchanger 330 is provided with a water cooling channel and a refrigerant channel, each liquid cooling plate 20 and each first heat exchanger 110 are respectively communicated with the water cooling channel, and the compressor 310 and the condenser 320 are connected in series with the refrigerant channel so as to cool the water cooling channel. It should be noted that, the condenser 320 may be an air-cooled condenser, which takes heat away by a fan, or may be a condensing plate exchanger, which takes heat away by an external cooling tower. The compressor 310 and the condenser 320 are connected in series with the refrigerant channels to form a refrigerant loop. The outlet of the specific compressor 310 is connected to the refrigerant inlet of the condenser 320, the refrigerant outlet of the condenser 320 is connected to the inlet of the refrigerant channel, and the outlet of the refrigerant channel is connected to the inlet of the compressor 310. The refrigerant channel is an evaporation end of the refrigerant loop, and the liquid cooling plate 20 and the first heat exchanger 110 supply cold through the evaporation end of the refrigerant loop. After the heat generated by the heating element is absorbed by the liquid cooling plates 20, the cooling water with the increased temperature in the liquid cooling plates 20 flows into the water cooling channel of the second heat exchanger 330 of the plug-in frame refrigerating module 30, exchanges heat with the evaporation end of the refrigerant loop, and the cooled cooling water flows back to each liquid cooling plate 20 to absorb heat to complete circulation. In addition, after the heat of the environment is absorbed by the first heat exchanger 110, the cooling water with the increased temperature in the first heat exchanger 110 also flows into the first channel of the second heat exchanger 330 of the plug-in frame refrigerating module 30, exchanges heat with the evaporation end of the refrigerant loop, and the cooled cooling water flows back to the first heat exchanger 110 to perform heat absorption to complete the cycle.

It is understood that the cooling water in the present application includes, but is not limited to, water or a mixture of water, such as antifreeze cooling water for adding ethylene glycol, and the like. The refrigerant in the present application includes, but is not limited to, a refrigerant to which fluorine is added.

The liquid cooling system of the cabinet server provided by the utility model is characterized in that the back plate refrigeration module 10, the liquid cooling plate 20 and the plug frame refrigeration module 30 are combined, and the liquid cooling plate 20 is attached to the heating element of the cabinet server 1 and is used for cooling the medium-high heating element in the cabinet server 1; the back-plate refrigeration module 10 is used for radiating heat from the internal environment of the cabinet server 1 to cool auxiliary devices and the like other than the high-heat-generation element. The plug-in frame refrigerating module 30 is used for cooling the liquid cooling plate 20 and the backboard refrigerating module 10 to take away heat after heat exchange with a high heating element or the environment. According to the liquid cooling system, multistage heat dissipation of the environment and the high heating element is achieved through the back plate refrigerating module 10 and the liquid cooling plate 20, and the cooling efficiency is improved. In addition, the compressor 310, the condenser 320 and the second heat exchanger 330 of the plug-in frame refrigeration module 30 are integrated inside the cabinet server 1, so that the cooling circuit is short, the cooling capacity loss is low, and compared with an external air conditioner, the efficiency is higher. And the modular design is adopted, so that the space utilization rate is high, the structure is compact, and the cost is lower.

In some embodiments, each liquid cooling plate 20 is tiled. The tiled arrangement makes the heat dissipation of the cabinet more uniform. Each heating element may be disposed on the corresponding liquid cooling plate 20.

In some embodiments, the first heat exchanger 110 is disposed along a vertical direction and two ends thereof extend to a top end and a bottom end of the rack server 1, respectively, so as to increase a contact area with the environment and improve heat exchange efficiency, and the first heat exchanger 110 may be plate-shaped. The medium in the first heat exchanger 110 is specifically water or a mixed solution of water, and the heat exchange is realized by adopting single-phase heat conduction heat exchange.

In some embodiments, the first fan 120 and the first heat exchanger 110 are disposed on the same side of the rack server 1, and the first fan 120 is an exhaust fan located outside the first heat exchanger 110. Indoor air outside the cabinet server 1 enters the cabinet server 1, exchanges heat with heating components in the cabinet server 1, absorbs heat for example, and is discharged after exchanging heat with the first heat exchanger 110 under the action of the first fan 120, and cooled air is discharged into the indoor environment outside the cabinet server 1 again, so that the indoor environment temperature is ensured not to be too high, and the temperature of the air entering the cabinet server 1 from the indoor environment is lower. And through indoor environment balance, the temperature of the wind body entering the cabinet server 1 is more uniform, and the heat dissipation is facilitated. By adopting the form of air draft, the air in the indoor environment can be guided into the cabinet type server 1 from different directions of the cabinet type server 1 and flows to the first heat exchanger 110, so that the effect of overall cooling is achieved.

In some embodiments, the liquid cooling plates 20 are stacked at intervals, and the inlet and outlet of each liquid cooling plate 20 are located on the same side of the liquid cooling plate 20. By providing the inlet and outlet of the liquid cooling plate 20 on the same side, piping is facilitated. And the other side can be provided with a cable so as to separate the circuit from the liquid path and avoid mutual interference.

Further, the plug-in frame refrigeration module 30 may have a liquid outlet 391 and a liquid inlet 392 at two ends corresponding to the same side of each liquid cooling plate 20.

In some embodiments, each liquid cooling plate 20 is inclined so that a small amount of gas generated by evaporation of the cooling liquid floats upward during use, thereby avoiding clogging in the middle.

In some embodiments, the liquid-cooled cooling system further comprises a water collector 40, wherein the water collector 40 has a plurality of inlets and is respectively connected to the outlets of the liquid-cooled plates 20, and the outlet of the water collector 40 is connected to the inlet of the water-cooled channel. When a plurality of liquid cooling plates 20 are provided, the cooling water flowing out of the plurality of liquid cooling plates 20 is collected by the water collector 40 and then flows into the water cooling passage at once for cooling. The cooling line is further simplified by the provision of the water collector 40.

In some embodiments, the liquid-cooled cooling system further comprises a water separator 50, wherein the water separator 50 has a plurality of outlets and is respectively connected to the inlet of each liquid-cooled plate 20, and the inlet of the water separator 50 is connected to the outlet of the water-cooled channel. The cooling water cooled in the water cooling passage is distributed to each liquid cooling plate 20 via the water separator 50, and heat is absorbed. The cooling line is further simplified by the provision of the water separator 50. In the case of the water collector 40 and the water separator 50, two interfaces are provided on the plug frame refrigeration module 30 corresponding to the water collector 40 and the water separator 50. Corresponding to the back plate refrigeration module 10, two interfaces may be further disposed on the plug frame refrigeration module 30, and specifically, an inlet and an outlet are disposed on the reserved pipeline and are respectively connected with the first heat exchanger 110.

In some embodiments, a flow regulating valve or solenoid valve 60 is connected between the first heat exchanger 110 and the water cooling channel, and the flow regulating valve or solenoid valve 60 is used to regulate the flow of the first heat exchanger 110. Specifically, a flow regulating valve or an electromagnetic valve 60 may be disposed at the front end of the inlet of the first heat exchanger 110, and the flow of the first heat exchanger 110 is regulated by controlling the opening of the electromagnetic valve 60 or controlling the flow regulating valve, so as to realize the cooling efficiency regulation of the environmental temperature in the cabinet server 1.

In some embodiments, the liquid-cooled cooling system further comprises at least one of a first temperature sensor for detecting a temperature of the fluid within the first heat exchanger 110, a first pressure sensor for detecting a pressure of the fluid within the first heat exchanger 110, and a second pressure sensor for detecting a pressure of the inlet of the first heat exchanger 110 and the outlet of the first heat exchanger 110, respectively. At least one of the first temperature sensor, the first pressure sensor and the second pressure sensor is arranged to detect the temperature and the pressure of the fluid in the first heat exchanger 110 or the pressure difference between the inlet and the outlet of the first heat exchanger 110, so that the flow of the first heat exchanger 110 and the rotating speed of the first fan 120 can be conveniently controlled according to the feedback data.

Further, the flow regulating valve or solenoid valve 60 is used for increasing the flow of the first heat exchanger 110 when the temperature detected by the first temperature sensor is higher than a first preset temperature, the pressure detected by the first pressure sensor is higher than a preset pressure, or the pressure difference detected by the second preset pressure sensor is greater than a preset pressure difference. The electromagnetic valve 60 or the flow regulating valve can regulate the flow path of the flow regulating valve and the opening of the electromagnetic valve 60 through the temperature or the pressure of the fluid in the first heat exchanger 110 or the pressure difference of the inlet and outlet of the first heat exchanger 110, such as when the temperature of the first heat exchanger 110 is higher than the first preset temperature T0 or the pressure difference is larger than the preset pressure difference pressure loss P0, the opening of the electromagnetic valve 60 or the flow regulating valve is increased to increase the flow of the first heat exchanger 110. Accordingly, the rotational speed of the first blower 120 increases. In other embodiments, the temperature of the auxiliary heating element may also be detected by a temperature sensor, and the flow path of the flow rate adjustment valve and the opening degree of the electromagnetic valve 60, and the rotational speed of the first fan 120 may be adjusted according to the fed-back temperature of the auxiliary heating element.

In some embodiments, the liquid-cooled cooling system further comprises a second temperature sensor for detecting a temperature of the heating element, and the compressor 310 is configured to increase the rotational speed when the temperature detected by the second temperature sensor is higher than a second preset temperature. When the temperature of the main server high heat-generating device, such as the main chip, is higher than the second preset temperature, the opening of the electromagnetic valve 60 or the flow regulating valve is not adjusted, so that the rotation speed of the compressor 310 of the plug-in frame refrigerating module 30 is preferentially increased, the cooling efficiency of the water cooling channel is improved, and the cooling efficiency of the liquid cooling plate 20 to the heat-generating element is further improved.

In some embodiments, the plug frame refrigeration module 30 has a cold-hot partition 340, the cold-hot partition 340 divides the interior of the plug frame refrigeration module 30 into a first cavity 350 and a second cavity 360, the second heat exchanger 330 is disposed in the first cavity 350, and the condenser 320 and the compressor 310 are disposed in the second cavity 360. The compressor 310 and the condenser 320 are connected in series with a refrigerant channel to form a refrigerant loop, the refrigerant channel is an evaporation end of the refrigerant loop, and the condenser 320 is a condensation end of the refrigerant loop. Through setting up cold and hot baffle 340, keep apart evaporating end and condensation end, reduce the influence of the heat of condensation end to evaporating end, further promote radiating efficiency. The compressor 310 generates heat during its operation, and is disposed in the second cavity 360 to avoid the compressor 310 acting as a heat source to affect the evaporation end.

In some embodiments, the condenser 320 is an air-cooled condenser and the plug-in refrigeration module 30 includes a second fan 370 for cooling the air-cooled condenser. That is, the heat of the condenser 320 is taken away by the second fan 370, the second fan 370 can be integrated in the plug-in frame refrigerating module 30, that is, the plug-in frame refrigerating module 30 can be integrally arranged in the cabinet server 1, no external structure exists, the compactness is high, and the requirement on space is low while the high-density heat dissipation requirement of the server is solved. In the case where the cold and hot separator 340 is provided to the plug frame cooling module 30 and the first cavity 350 and the second cavity 360 are divided, the second fan 370 is provided to the second cavity 360.

In some embodiments, the second fan 370 of the plug-in frame refrigeration module 30 is a variable frequency fan, and the second fan 370 can correspondingly increase or decrease the rotation speed according to the difference between the condensation temperature and the preset value.

In some embodiments, the liquid-cooled cooling system further includes a first air duct and a second air duct in communication with the second cavity 360, respectively, the first air duct and the second air duct each being in communication with the outdoor environment, and openings of the first air duct and the second air duct being located on different sides of the rack server 1, respectively. Through setting up with cabinet formula server 1 place indoor environment independent first wind channel and second wind channel, under the effect of fan, form outdoor environment, first wind channel, second cavity 360, second wind channel, outdoor environment's circulation, that is form with cabinet formula server 1 place environment independent gas circulation promptly to better dispel the heat to condenser 320, and the exhaust heat can not get into cabinet formula server 1 place indoor environment, has further promoted whole radiating efficiency.

In some embodiments, referring to fig. 4 and 5, the difference between the embodiment and the embodiment is that the condenser 320 adopts a condensing plate exchanger, the compressor 310 is communicated with a first channel of the condensing plate exchanger, and a second channel of the condensing plate exchanger is used for externally connecting to a cooling tower outside the cabinet server 1. Correspondingly, two interfaces are arranged on the plug-in frame refrigerating module 30 and communicated with the second channel of the condensing plate exchanger, and the two interfaces are respectively used for externally connecting a cooling tower, and heat of the first channel of the condensing plate exchanger is taken away through the cooling tower. By adopting the form of the cooling tower, the external cooling water is fully utilized, the heat of the condenser 320 can be taken away, and the heat exchange efficiency of the condenser 320 is improved, so that the cooling capacity of the liquid cooling plate 20 and the first heat exchanger 110 is improved.

In some embodiments, the cooling tower is an open cooling tower or a closed cooling tower. Specifically, a pump body is arranged between the second channel and the closed cooling tower. Or a pump body and a third heat exchanger for exchanging heat with the second channel are arranged between the second channel and the open cooling tower.

In some embodiments, the liquid cooling plates 20 are provided with a plurality of driving pumps corresponding to the liquid cooling plates 20, each driving pump corresponds to at least one liquid cooling plate 20, and each driving pump is connected between a water cooling channel and the corresponding liquid cooling plate 20. After the heat generated by the heating element is absorbed by the liquid cooling plates 20, the heat flows into the second heat exchanger 330 of the plug-in frame refrigerating module 30 under the pushing of the driving pump, and exchanges heat with the evaporating end of the refrigerant loop, and cooled cooling water is redistributed to each liquid cooling plate 20, so that heat absorption is completed. Specifically, each liquid cooling plate 20 is provided with a separate driving pump, and the requirement can be met by adopting a smaller driving pump, so that the problem of installation space can be solved.

In some embodiments, the plug-in frame refrigeration module 30 is installed at the bottom of the rack server 1, so that leakage at the connection position can be avoided, and the center of gravity of the rack server 1 can be lowered and stabilized.

In some embodiments, the plug frame refrigeration module 30 is provided with a sliding rail for sliding connection with the rack server 1. The structure of the slide rail is not particularly limited herein, and may be a track structure or a channel structure. By arranging the sliding rail, the plug-in frame refrigerating module 30 can be conveniently pulled for installation or adjustment.

Based on the liquid cooling system provided in the above embodiment, the present utility model further provides a cabinet server 1, where the cabinet server 1 includes any one of the liquid cooling systems in the above embodiment. Since the cabinet server 1 adopts the liquid cooling system in the above embodiment, the cabinet server 1 has the beneficial effects described in the above embodiment.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A liquid-cooled cooling system for a rack server, comprising:

The back plate refrigeration module comprises a first fan and a first heat exchanger, wherein the first heat exchanger is arranged on one side of the cabinet server, and the first fan is used for driving airflow to flow to the first heat exchanger for heat exchange;

At least one liquid cooling plate, each liquid cooling plate is respectively attached to the heating element of the cabinet server;

The plug frame refrigerating module comprises a compressor, a condenser and a second heat exchanger which are respectively arranged in the cabinet server, wherein the second heat exchanger is provided with a water cooling channel and a refrigerant channel, each liquid cooling plate and the first heat exchanger are respectively communicated with the water cooling channel, and the compressor, the condenser and the refrigerant channel are connected in series so as to cool the water cooling channel.

2. The liquid cooling system of a rack server according to claim 1, further comprising a water collector and/or a water separator, wherein the water collector has a plurality of inlets and is connected to the outlets of the liquid cooling plates, respectively, and the outlets of the water collector are connected to the inlets of the water cooling channels;

The water separator is provided with a plurality of outlets and is respectively connected with the inlets of the liquid cooling plates, and the inlet of the water separator is connected with the outlet of the water cooling channel.

3. The liquid cooling system of claim 1, wherein a flow regulating valve or an electromagnetic valve is connected between the first heat exchanger and the water cooling channel, and the flow regulating valve or the electromagnetic valve is used for regulating the flow of the first heat exchanger.

4. The liquid-cooled cooling system of the rack server according to claim 3, further comprising at least one of a first temperature sensor for detecting a temperature of fluid within the first heat exchanger, a first pressure sensor for detecting a pressure of fluid within the first heat exchanger, and a second pressure sensor for detecting a pressure of an inlet of the first heat exchanger and an outlet of the first heat exchanger, respectively;

the flow regulating valve or the electromagnetic valve is used for increasing the flow of the first heat exchanger when the temperature detected by the first temperature sensor is higher than a first preset temperature, the pressure detected by the first pressure sensor is higher than a preset pressure or the pressure difference detected by the second pressure sensor is larger than a preset pressure difference.

5. The liquid-cooled cooling system of claim 1, further comprising a second temperature sensor for detecting a temperature of the heating element, wherein the compressor is configured to increase the rotational speed when the temperature detected by the second temperature sensor is higher than a second preset temperature.

6. The liquid cooling system of any one of claims 1-5, wherein the plug frame refrigeration module has a cold-hot separator separating an interior of the plug frame refrigeration module into a first cavity and a second cavity, the second heat exchanger is disposed in the first cavity, and the condenser and the compressor are disposed in the second cavity.

7. The liquid cooling system of claim 6, wherein the condenser is an air-cooled condenser, the plug frame refrigeration module comprises a second fan for cooling the air-cooled condenser, and the second fan is arranged in the second cavity; or the cabinet server also comprises a first air channel and a second air channel which are respectively communicated with the second cavity, wherein the first air channel and the second air channel are both communicated with the outdoor environment, and openings of the first air channel and the second air channel are respectively positioned on different sides of the cabinet server.

8. The liquid cooling system of claim 6, wherein the condenser is a condensing plate exchanger, the compressor is in communication with a first channel of the condensing plate exchanger, and a second channel of the condensing plate exchanger is used for being externally connected to a cooling tower outside the cabinet server.

9. The liquid cooling system of any one of claims 1 to 5, wherein a plurality of liquid cooling plates are provided, a plurality of driving pumps are provided corresponding to the liquid cooling plates, each driving pump corresponds to at least one liquid cooling plate, and each driving pump is connected between the water cooling channel and the corresponding liquid cooling plate.

10. A rack server comprising the liquid-cooled cooling system of any one of claims 1-9.