Liquid cooling unit and control method thereof

Abstract

The invention provides a liquid cooling unit and a control method thereof. The liquid cooling unit comprises a refrigerant circulation system and a liquid cooling system, the liquid cooling circulation system comprises a liquid cooling component; a heat exchange medium in the liquid cooling circulation system exchanges heat with a refrigerant in the evaporator, so that the temperature of the heat exchange medium in the liquid cooling circulation system is reduced; the liquid cooling component is used for cooling the target area; a first connection point and a second connection point are arranged on the liquid cooling circulation system, the first connection point is located at the upstream of the liquid cooling component, and the second connection point is located at the downstream of the liquid cooling component; a liquid outlet of the liquid storage component is communicated with the first connecting point through a first pipeline, and a liquid inlet of the liquid storage component is communicated with the second connecting point through a second pipeline; the first pipeline and the second pipeline are arranged in an on-off manner; and the cooling part is used for cooling the liquid in the liquid storage part. According to the liquid cooling unit, the problem that a liquid cooling unit in the prior art is single in operation mode is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling units, and in particular to a liquid cooling unit and a control method thereof. Background Art

[0002] Liquid cooling units are mainly used for temperature control in computer rooms or cooling in industrial areas, so they must have strong reliability. Once a unit failure occurs, it will lead to serious consequences. In addition, most computer rooms or industrial areas need to operate the units in winter or low temperature environments due to their own heating.

[0003] Existing liquid cooling units usually only have a conventional cooling mode, that is, there is a problem of a single operating mode. Summary of the invention

[0004] The main purpose of the present invention is to provide a liquid cooling unit and a control method thereof, so as to solve the problem that the liquid cooling unit in the prior art has a single operation mode.

[0005] To achieve the above-mentioned purpose, according to one aspect of the present invention, a liquid cooling unit is provided, which includes: a refrigerant circulation system, including an evaporator; a liquid cooling circulation system, including a liquid cooling component; a heat exchange medium in the liquid cooling circulation system exchanges heat with the refrigerant in the evaporator to reduce the temperature of the heat exchange medium in the liquid cooling circulation system; the liquid cooling component is used to cool the target area; a liquid storage component, the liquid cooling circulation system is provided with a first connection point and a second connection point, the first connection point is located upstream of the liquid cooling component, and the second connection point is located downstream of the liquid cooling component; the liquid outlet of the liquid storage component is connected to the first connection point through a first pipeline, and the liquid inlet of the liquid storage component is connected to the second connection point through a second pipeline; the first pipeline and the second pipeline can be set to be on and off; a cooling component, the cooling component is used to cool the liquid in the liquid storage component.

[0006] Furthermore, the refrigerant circulation system also includes a condenser; the liquid cooling unit also includes: a heat exchanger, the liquid inlet of the heat exchanger is connected to the liquid outlet of the liquid storage component through a third pipeline, and the liquid outlet of the heat exchanger is connected to the liquid inlet of the liquid storage component through a fourth pipeline; the third pipeline and the fourth pipeline can be set to be on and off; the heat exchanger is located on one side of the condenser, so that the liquid in the heat exchanger can exchange heat with the condenser through air to cool the condenser.

[0007] Furthermore, the liquid cooling unit also includes: a fifth pipeline, the first end of the fifth pipeline is connected to the liquid outlet of the liquid storage component, the first end of the third pipeline and the first end of the first pipeline are both connected to the second end of the fifth pipeline; the second end of the third pipeline is connected to the liquid inlet of the heat exchanger; the second end of the first pipeline is connected to the first connection point.

[0008] Furthermore, the liquid cooling unit also includes: a sixth pipeline, the first end of the second pipeline is connected to the second connection point, and the first end of the fourth pipeline is connected to the liquid outlet of the heat exchanger; the second end of the second pipeline and the second end of the fourth pipeline are both connected to the first end of the sixth pipeline, and the second end of the sixth pipeline is connected to the liquid inlet of the liquid storage component.

[0009] Further, when the liquid cooling unit includes a fifth pipeline, a filter and / or a liquid supply pump is provided on the fifth pipeline.

[0010] Furthermore, the liquid cooling unit also includes: a seventh pipeline, a third connection point is arranged on the fourth pipeline; a fourth connection point is arranged on the liquid cooling circulation system, the fourth connection point is located downstream of the first connection point and upstream of the liquid cooling component; both ends of the seventh pipeline are respectively connected to the third connection point and the fourth connection point; the seventh pipeline can be set to be on and off; the pipe section between the third connection point of the fourth pipeline and the liquid inlet of the liquid storage component can be set to be on and off.

[0011] Furthermore, the liquid cooling unit also includes a first blowing component, and an air outlet of the first blowing component is arranged toward the heat exchange element to blow air to the heat exchange element, thereby reducing the temperature of the liquid in the heat exchange element.

[0012] Furthermore, the air outlet of the first blowing component is arranged toward the heat exchanger or the condenser; when the air outlet of the first blowing component is arranged toward the heat exchanger, air is blown to the heat exchanger, thereby reducing the temperature of the liquid in the heat exchanger; when the air outlet of the first blowing component is arranged toward the condenser, air is blown to the condenser.

[0013] Furthermore, the liquid cooling unit also includes: a fifth pipeline, a first end of the fifth pipeline is connected to the liquid outlet of the liquid storage component, a first end of the third pipeline and a first end of the first pipeline are both connected to the second end of the fifth pipeline; the second end of the third pipeline is connected to the liquid inlet of the heat exchanger; the second end of the first pipeline is connected to the first connection point; a tenth pipeline, a sixth connection point is provided on the third pipeline, a first end of the tenth pipeline is connected to the liquid outlet of the liquid storage component, and the second end of the tenth pipeline is connected to the sixth connection point; a liquid supply pump is provided on the fifth pipeline, and an auxiliary pump is provided on the tenth pipeline, and the auxiliary pump is used to provide auxiliary power for supplying liquid to the heat exchanger.

[0014] Furthermore, the liquid cooling unit further comprises: a liquid level detection component, at least a portion of which is disposed in the liquid storage component to detect the liquid level in the liquid storage component.

[0015] Furthermore, the liquid cooling unit also includes: a liquid replenishing tube, a first end of the liquid replenishing tube is used for introducing liquid, and a second end of the liquid replenishing tube is used for communicating with the internal cavity of the liquid storage component.

[0016] Furthermore, the liquid storage component includes a first liquid storage part and a second liquid storage part, the first liquid storage part is located above the second liquid storage part; the liquid inlet of the liquid storage component is arranged on the first liquid storage part, and the liquid outlet of the liquid storage component is arranged on the second liquid storage part; the liquid cooling unit also includes a diverter component, the diverter component is located between the first liquid storage part and the second liquid storage part, so that the liquid in the first liquid storage part flows through the diverter component, the diverter component diverts the liquid flowing through it, and the diverted liquid flows into the second liquid storage part; the cooling component is located on one side of the diverter component to cool the liquid flowing through the diverter component.

[0017] Furthermore, the diversion component includes multiple diversion channels, the liquid in the first liquid storage part enters each diversion channel through the upper end of each diversion channel, and the liquid in each diversion channel flows into the second liquid storage part through the lower end thereof; a vent is provided on the channel wall of each diversion channel; the cooling component is a second blowing component, and the air outlet of the second blowing component is arranged toward the diversion component to blow air toward the diversion component, and then the wind blown out by the diversion component is blown toward the liquid in the diversion channel through the vent to cool the liquid in the diversion channel.

[0018] Furthermore, the flow diversion component also includes a flow diversion net, which is arranged in the flow diversion channel so that the liquid in the flow diversion channel is diverted by the flow diversion net when flowing through the flow diversion net.

[0019] Furthermore, a plurality of guide channels are provided in the first liquid storage part, the upper end of each guide channel is connected to the liquid inlet of the liquid storage component, and the liquid flowing out from the lower end of each guide channel flows through the diversion component to perform initial diversion on the liquid entering through the liquid inlet of the liquid storage component through the plurality of guide channels.

[0020] According to another aspect of the present invention, a control method for a liquid cooling unit is provided, which is applicable to the above-mentioned liquid cooling unit; the control method includes: controlling the first pipeline and the second pipeline to be in a disconnected state, and controlling the refrigerant circulation system to operate, so that the liquid cooling unit operates in a first operating mode; controlling the refrigerant circulation system not to start, and controlling the first pipeline and the second pipeline to be in a connected state, so that the liquid cooling unit operates in a second operating mode.

[0021] Furthermore, when the liquid cooling unit operates in the first operation mode, the control method further includes: controlling the third pipeline and the fourth pipeline to be in a connected state.

[0022] Furthermore, the control method also includes: when the liquid cooling unit operates in the first operating mode, controlling the seventh pipeline to be in a disconnected state, and controlling the pipe section between the third connection point of the fourth pipeline and its second end to be in a connected state; when the liquid cooling unit operates in the second operating mode, controlling the third pipeline and the seventh pipeline to be in a connected state, and controlling the pipe section between the third connection point of the fourth pipeline and its second end to be in a disconnected state.

[0023] Furthermore, when the pressure of the liquid cooling circulation system is adjusted to a preset water pressure, and when the liquid cooling unit is to exit the second operating mode, the control method also includes: controlling the third pipeline to be in a connected state, controlling the seventh pipeline to be in a disconnected state, and controlling the pipe section between the third connection point of the fourth pipeline and its second end to be in a connected state.

[0024] According to the technical solution of the present invention, the liquid cooling unit includes a refrigerant circulation system, a liquid cooling circulation system, a liquid storage component, and a cooling component, wherein the refrigerant circulation system includes an evaporator; the liquid cooling circulation system includes a liquid cooling component; the heat exchange medium in the liquid cooling circulation system exchanges heat with the refrigerant in the evaporator to reduce the temperature of the heat exchange medium in the liquid cooling circulation system; the liquid cooling component is used to cool the target area; a first connection point and a second connection point are provided on the liquid cooling circulation system, the first connection point is located upstream of the liquid cooling component, and the second connection point is located downstream of the liquid cooling component; the liquid outlet of the liquid storage component is connected to the first connection point through a first pipeline, and the liquid inlet of the liquid storage component is connected to the second connection point through a second pipeline; the first pipeline and the second pipeline can be set to be on and off; the cooling component is used to cool the liquid in the liquid storage component. The liquid cooling unit of the present application can realize two operating modes, which solves the problem of a single operating mode of the liquid cooling unit in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0026] Figure 1 A schematic structural diagram of an embodiment of a liquid cooling unit according to the present invention is shown;

[0027] Figure 2 A schematic structural diagram of a liquid storage component of a liquid cooling unit according to the present invention is shown;

[0028] Figure 3 A side view of a liquid storage component of a liquid cooling unit according to the present invention is shown;

[0029] Figure 4 A schematic diagram showing the structure of the flow guide channel in the liquid storage component of the liquid cooling unit according to the present invention is shown;

[0030] Figure 5 Shows Figure 1 Schematic diagram of the structure of the liquid storage component and the cooling component of the liquid cooling unit.

[0031] The above drawings include the following reference numerals:

[0032] 10. Refrigerant circulation system; 11. Evaporator; 12. Throttling device; 13. Condenser; 131. First blowing component; 14. Compressor;

[0033] 20. Liquid cooling circulation system; 201. First connection point; 202. Second connection point; 204. Fourth connection point; 21. Liquid cooling component; 22. Eighth pipeline; 221. First pump body; 222. Expansion element; 223. Water pressure detection element; 23. Ninth pipeline; 231. Flow meter; 232. Check valve;

[0034] 30, liquid storage component; 301, first liquid storage part; 3011, flow guide channel; 302, second liquid storage part; 303, liquid inlet; 304, liquid outlet;

[0035] 31. First pipeline; 311. First control valve; 32. Second pipeline; 321. Second control valve; 33. Cooling component; 34. Heat exchanger; 35. Third pipeline; 351. Sixth connection point; 36. Fourth pipeline; 361. Third control valve; 362. Third connection point; 363. First pipe section; 364. Second pipe section; 37. Fifth pipeline; 371. Filter; 372. Liquid supply pump; 373. Three-way valve; 374. Fifth connection point; 38. Sixth pipeline; 39. Seventh pipeline; 391. Fourth control valve; 40. Tenth pipeline; 401. Auxiliary pump;

[0036] 50. Liquid level detection component; 60. Liquid filling tube;

[0037] 70. Diverter assembly; 71. Diverter pipe; 72. Diverter net; 73. Dustproof net. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0039] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] The present invention provides a liquid cooling unit, please refer to Figures 1 to 5 The liquid cooling unit includes a refrigerant circulation system 10 and a liquid cooling circulation system 20.

[0042] The refrigerant circulation system 10 includes an evaporator 11, a compressor 14, a condenser 13, and a throttling device 12 connected in sequence to form a refrigerant circulation system. Optionally, the throttling device 12 is a throttle valve.

[0043] The liquid cooling circulation system 20 includes a liquid cooling component 21; the heat exchange medium in the liquid cooling circulation system 20 exchanges heat with the refrigerant in the evaporator 11, so that the refrigerant in the evaporator 11 cools the heat exchange medium in the liquid cooling circulation system 20, thereby reducing the temperature of the heat exchange medium in the liquid cooling circulation system 20. The liquid cooling component 21 is used to cool the target area.

[0044] Specifically, the liquid cooling circulation system 20 includes a heat exchange section, a first end of the heat exchange section is connected to the liquid outlet of the liquid cooling component 21, and a second end of the heat exchange section is connected to the liquid inlet of the liquid cooling component 21; the heat exchange medium in the heat exchange section is used to exchange heat with the refrigerant in the evaporator 11.

[0045] Specifically, the heat exchange medium in the liquid cooling circulation system 20 is liquid.

[0046] In the present application, the liquid cooling unit also includes a liquid storage component 30 and a cooling component 33; a first connection point 201 and a second connection point 202 are provided on the liquid cooling circulation system 20, the first connection point 201 is located upstream of the liquid cooling component 21, and the second connection point 202 is located downstream of the liquid cooling component 21; the liquid outlet of the liquid storage component 30 is connected to the first connection point 201 through a first pipeline 31, and the liquid inlet of the liquid storage component 30 is connected to the second connection point 202 through a second pipeline 32; the first pipeline 31 and the second pipeline 32 can be set to be on and off; the cooling component 33 is used to cool the liquid in the liquid storage component 30.

[0047] During the specific implementation, the liquid cooling unit has a first operating mode and a second operating mode.

[0048] When the liquid cooling unit is in the first operation mode, the first pipeline 31 and the second pipeline 32 are both in a disconnected state; the refrigerant circulation system 10 starts to operate, and the refrigerant in the evaporator 11 is used to cool the heat exchange medium in the liquid cooling circulation system 20.

[0049] When the liquid cooling unit is in the second operating mode, the refrigerant circulation system 10 is not started; the first pipeline 31 and the second pipeline 32 are both in a connected state, and the cooling component 33 cools the liquid in the liquid storage component 30. The liquid with a lower temperature in the liquid storage component 30 flows into the pipeline between the first connection point 201 of the liquid cooling circulation system 20 and the liquid cooling component 21 through the first pipeline 31, and then flows into the liquid cooling component 21, thereby making the temperature of the heat exchange liquid in the liquid cooling component 21 lower; the liquid flowing out of the liquid cooling component 21 flows through the pipeline between the liquid cooling component 21 and the second connection point 202 of the liquid cooling circulation system 20, and the second pipeline 32, and then flows back to the liquid storage component 30, thereby forming a refrigeration cycle.

[0050] Specifically, a first control valve 311 is provided on the first pipeline 31 to control the on-off of the first pipeline 31 and adjust the liquid flow in the first pipeline 31 through the first control valve 311 .

[0051] Specifically, a second control valve 321 is provided on the second pipeline 32 to control the on-off of the second pipeline 32 and adjust the liquid flow in the second pipeline 32 through the second control valve 321 .

[0052] Optionally, the first control valve 311 is a solenoid valve; the second control valve 321 is a solenoid valve.

[0053] Optionally, the liquid storage component 30 is a liquid storage tank.

[0054] In the present application, the liquid cooling unit also includes a heat exchanger 34, the liquid inlet of the heat exchanger 34 is connected to the liquid outlet of the liquid storage component 30 through a third pipeline 35, and the liquid outlet of the heat exchanger 34 is connected to the liquid inlet of the liquid storage component 30 through a fourth pipeline 36; the third pipeline 35 and the fourth pipeline 36 can be set to be on and off; the heat exchanger 34 is located on one side of the condenser 13.

[0055] When the liquid cooling unit is in the first operating mode, the condenser 13 releases heat and the temperature of the condenser 13 is relatively high, so there is hot air around the heat exchanger 34 due to the heat released by the condenser 13; the third pipeline 35 and the fourth pipeline 36 are both connected, the cooling component 33 cools the liquid in the liquid storage component 30, and the liquid with a lower temperature in the liquid storage component 30 enters the heat exchanger 34 through the third pipeline 35. The liquid with a lower temperature in the heat exchanger 34 exchanges heat with the hot air around it to cool the hot air around it, and the cooled air exchanges heat with the condenser 13 to cool the condenser 13; the liquid flowing out of the heat exchanger 34 flows back to the liquid storage component 30 through the fourth pipeline 36.

[0056] Specifically, the fourth pipeline 36 is provided with a third control valve 361 to control the on-off of the fourth pipeline 36 and adjust the liquid flow in the fourth pipeline 36 through the third control valve 361 .

[0057] Optionally, the third control valve 361 is a solenoid valve.

[0058] In the present application, the liquid cooling unit also includes a fifth pipeline 37, the first end of the fifth pipeline 37 is connected to the liquid outlet of the liquid storage component 30, the first end of the third pipeline 35 and the first end of the first pipeline 31 are both connected to the second end of the fifth pipeline 37; the second end of the third pipeline 35 is connected to the liquid inlet of the heat exchanger 34; the second end of the first pipeline 31 is connected to the first connection point 201.

[0059] Specifically, a filter 371 is provided on the fifth pipeline 37 to filter the liquid flowing out of the liquid outlet of the liquid storage component 30 .

[0060] Optionally, the filter 371 is a Y-type filter.

[0061] Specifically, a liquid supply pump 372 is provided on the fifth pipeline 37 , so that the liquid in the liquid storage component 30 is pumped into the first pipeline 31 and / or the third pipeline 35 under the action of the liquid supply pump 372 .

[0062] Specifically, the second end of the fifth pipeline 37 is connected to the first end of the third pipeline 35 and the first end of the first pipeline 31 through the three-way valve 373; the fifth pipeline 37 is connected to the third pipeline 35 and / or the first pipeline 31 through the three-way valve 373.

[0063] When the liquid cooling unit is in the first operation mode, the fifth pipeline 37 is only connected to the third pipeline 35 .

[0064] In the present application, the liquid cooling unit also includes a sixth pipeline 38; the first end of the second pipeline 32 is connected to the second connection point 202, and the first end of the fourth pipeline 36 is connected to the liquid outlet of the heat exchanger 34; the second end of the second pipeline 32 and the second end of the fourth pipeline 36 are both connected to the first end of the sixth pipeline 38, and the second end of the sixth pipeline 38 is connected to the liquid inlet of the liquid storage component 30.

[0065] In the present application, a third connection point 362 is provided on the fourth pipeline 36 ; a fourth connection point 204 is provided on the liquid cooling circulation system 20 , the fourth connection point 204 is located downstream of the first connection point 201 , and the fourth connection point 204 is located upstream of the liquid cooling component 21 .

[0066] The liquid cooling unit also includes a seventh pipeline 39, the two ends of which are respectively connected to the third connection point 362 and the fourth connection point 204; the seventh pipeline 39 can be set to be on and off; the pipe section between the third connection point 362 of the fourth pipeline 36 and the liquid inlet of the liquid storage component 30 can be set to be on and off.

[0067] The third connection point 362 divides the fourth pipeline 36 into a first pipe section 363 and a second pipe section 364, that is, the fourth pipeline 36 includes the first pipe section 363 and the second pipe section 364; the first pipe section 363 is the pipe section between the liquid outlet of the heat exchange component 34 and the third connection point 362; the second pipe section 364 is the pipe section between the third connection point 362 and the liquid inlet of the liquid storage component 30, that is, the second pipe section 364 is the pipe section between the third connection point 362 and the first end of the sixth pipeline 38; the second pipe section 364 can be set to be on and off.

[0068] When the liquid cooling unit is in the first operating mode, the seventh pipeline 39 is disconnected and the second pipe section 364 is connected. At this time, the liquid in the heat exchange element 34 flows back to the liquid storage component 30 through the first pipe section 363 and the second pipe section 364.

[0069] When the liquid cooling unit is in the second operating mode, the seventh pipeline 39 is in a connected state and the second pipe section 364 is in a disconnected state; the liquid flowing out of the liquid storage component 30 flows into the fifth pipeline 37, and the liquid flowing out of the fifth pipeline 37 is divided into two branches; the liquid in the first branch flows into the first pipeline 31, and then flows into the pipeline between the first connection point 201 of the liquid cooling circulation system 20 and the liquid cooling component 21; the liquid in the second branch flows through the third pipeline 35, the heat exchanger 34, the first pipe section 363, and the seventh pipeline 39 in turn, and then flows into the upstream pipe section of the liquid cooling component 21; that is, the liquid with a lower temperature in the liquid storage component 30 flows into the upstream pipe section of the liquid cooling component 21 through two branches, and then flows into the liquid cooling component 21.

[0070] Specifically, a fourth control valve 391 is provided on the seventh pipeline 39 to control the on-off of the seventh pipeline 39 and adjust the liquid flow in the seventh pipeline 39 through the fourth control valve 391 .

[0071] Optionally, the fourth control valve 391 is a solenoid valve.

[0072] Specifically, the third control valve 361 is disposed on the second pipe section 364 .

[0073] In the present application, the liquid cooling unit further includes a first blowing component 131 , and an air outlet of the first blowing component 131 is arranged toward the heat exchanger 34 , so that the first blowing component 131 blows air to the heat exchanger 34 , thereby reducing the temperature of the liquid in the heat exchanger 34 .

[0074] When the liquid cooling unit is in the second operation mode, the first blowing component 131 blows air to the heat exchange component 34 to further reduce the temperature of the liquid in the heat exchange component 34; this is conducive to lowering the temperature of the liquid flowing into the liquid cooling component 21.

[0075] Specifically, the air outlet of the first blowing component 131 is arranged toward the heat exchange element 34 or the condenser 13 .

[0076] When the liquid cooling unit is in the first operation mode, the air outlet of the first blowing component 131 is arranged toward the condenser 13 , so that the first blowing component 131 blows air to the condenser 13 , thereby cooling and dissipating the heat of the condenser 13 .

[0077] When the liquid cooling unit is in the second operation mode, the air outlet of the first blowing component 131 is arranged toward the heat exchange element 34 .

[0078] Optionally, the first blowing component 131 is a blower or a fan.

[0079] Optionally, the first blowing component 131 is located between the heat exchanger 34 and the condenser 13; when the liquid cooling unit is in the first operating mode, the first blowing component 131 can blow the cold air on the side of the heat exchanger 34 to the condenser 13 to better cool and dissipate the heat of the condenser 13.

[0080] In the present application, the pipeline between the first end of the heat exchange section and the liquid outlet of the liquid cooling component 21 is the eighth pipeline 22; the pipeline between the second end of the heat exchange section and the liquid inlet of the liquid cooling component 21 is the ninth pipeline 23.

[0081] Specifically, the first connection point 201 and the second connection point 202 are both arranged on the eighth pipeline 22 , and the fourth connection point 204 is arranged on the ninth pipeline 23 .

[0082] Specifically, a first pump body 221 is provided on the eighth pipeline 22 , so that the liquid in the liquid cooling circulation system 20 enters the heat exchange section under the action of the first pump body 221 .

[0083] Specifically, the first pump body 221 is located between the first connection point 201 and the heat exchange section.

[0084] Specifically, an expansion member 222 is provided on the eighth pipeline 22, and the expansion member 222 is located between the first connection point 201 and the first pump body 221. Optionally, the expansion member 222 is an expansion tank.

[0085] Specifically, a flow meter 231 is provided on the ninth pipeline 23 , and the flow meter 231 is located between the heat exchange section and the fourth connection point 204 .

[0086] Specifically, a check valve 232 is provided on the ninth pipeline 23 , and the check valve 232 is located between the heat exchange section and the fourth connection point 204 .

[0087] Specifically, a water pressure detection member 223 is provided on the eighth pipeline 22, and the water pressure detection member 223 is used to detect the water pressure of the liquid cooling circulation system 20. Optionally, the water pressure detection member 223 is used to detect the water pressure of the liquid cooling circulation system 20 in real time.

[0088] Optionally, the water pressure detection member 223 is located between the liquid cooling component 21 and the second connection point 202. Optionally, the water pressure detection member 223 is a water pressure sensor.

[0089] In the present application, after the pressure of the liquid cooling circulation system 20 is adjusted to the preset water pressure, and when the liquid cooling unit is about to exit the second operating mode, the liquid supply pump 372 will not immediately stop at zero speed. Therefore, at this time, the liquid sucked out by the liquid supply pump 372 flows back to the liquid storage component 30 through the third pipeline 35, the heat exchange element 34, the fourth pipeline 36, and the sixth pipeline 38 to avoid interfering with the stable water pressure of the liquid cooling circulation system 20.

[0090] Optionally, the liquid supply pump 372 is a variable speed pump, so that the water pressure of the liquid cooling circulation system 20 can be adjusted by adjusting the frequency of the liquid supply pump 372 .

[0091] In the present application, a sixth connection point 351 is provided on the third pipeline 35; the liquid cooling unit also includes a tenth pipeline 40, a first end of the tenth pipeline 40 is connected to the liquid outlet of the liquid storage component 30, and a second end of the tenth pipeline 40 is connected to the sixth connection point 351; an auxiliary pump 401 is provided on the tenth pipeline 40, and the auxiliary pump 401 is used to provide auxiliary power for supplying liquid to the heat exchange element 34.

[0092] During the specific implementation process, when the liquid cooling unit operates in the second operating mode, the liquid flowing out from the fifth pipeline 37 is divided into two branches; when the flow of the second branch is small, the auxiliary pump 401 can be turned on to supply liquid to the second branch through the tenth pipeline 40 under the action of the auxiliary pump 401 to increase the flow of the second branch.

[0093] When the liquid cooling unit operates in the first operating mode, although the liquid flowing out of the fifth pipeline 37 only flows to the heat exchanger 34, the auxiliary pump 401 can also be turned on at this time. Under the action of the auxiliary pump 401, liquid is supplied to the heat exchanger 34 through the tenth pipeline 40 to increase the liquid flow in the heat exchanger 34.

[0094] Optionally, when the liquid cooling unit operates in the first operation mode and when the temperature of the condenser 13 is high, the auxiliary pump 401 may be turned on to increase the cooling effect on the condenser 13 .

[0095] Specifically, a fifth connection point 374 is provided on the fifth pipeline 37, and the fifth connection point 374 divides the fifth pipeline 37 into a third pipe section and a fourth pipe section; the end of the third pipe section away from the fourth pipe section is the first end of the fifth pipeline 37, and the end of the fourth pipe section away from the third pipe section is the second end of the fifth pipeline 37.

[0096] Specifically, the first end of the tenth pipeline 40 is connected to the fifth connection point 374, so that the tenth pipeline 40 is connected to the liquid outlet of the liquid storage component 30 through the third pipe segment; the liquid supply pump 372 is arranged on the fourth pipe segment.

[0097] Specifically, the filter 371 is disposed on the third pipe section.

[0098] During the specific implementation process, when the liquid cooling unit operates in the first operating mode, the liquid supply pump 372 can be turned off, and only the auxiliary pump 401 can be turned on. Under the action of the auxiliary pump 401, the liquid in the liquid storage component 30 flows through the third pipe section, the tenth pipeline 40, the sixth connection point 351 of the third pipeline 35 and the pipe section between its second end, and then flows into the heat exchange component 34.

[0099] In the present application, the liquid cooling unit further includes a liquid level detection member 50 , at least a portion of which is disposed in the liquid storage component 30 to detect the liquid level in the liquid storage component 30 .

[0100] Optionally, the liquid level detection component 50 is a liquid level meter.

[0101] In the present application, the liquid cooling unit also includes a liquid replenishing tube 60, the first end of which is used to introduce liquid, and the second end of which is used to communicate with the internal cavity of the liquid storage component 30 to replenish liquid into the liquid storage component 30 through the liquid replenishing tube 60.

[0102] Specifically, when the liquid level in the liquid storage component 30 is lower than a preset liquid level, liquid is automatically replenished into the liquid storage component 30 through the liquid replenishing tube 60 .

[0103] Optionally, the first end of the infusion tube 60 is used to be connected to a water source. For example, the first end of the infusion tube 60 is used to be connected to a tap water source in a machine room or an industrial area.

[0104] In the present application, the liquid storage component 30 includes a first liquid storage component 301 and a second liquid storage component 302, and the first liquid storage component 301 is located above the second liquid storage component 302; the liquid inlet of the liquid storage component 30 is arranged on the first liquid storage component 301, so that the liquid entering from the liquid inlet of the liquid storage component 30 flows into the inner cavity of the first liquid storage component 301; the liquid outlet of the liquid storage component 30 is arranged on the second liquid storage component 302, so that the liquid in the inner cavity of the second liquid storage component 302 flows out through the liquid outlet of the liquid storage component 30.

[0105] Specifically, the second end of the liquid infusion tube 60 is communicated with the inner cavity of the first liquid storage part 301 .

[0106] Specifically, at least part of the liquid level detection member 50 is disposed in the second liquid storage portion 302 to detect the liquid level in the second liquid storage portion 302. When the liquid level in the second liquid storage portion 302 is lower than a preset liquid level, liquid is automatically replenished into the liquid storage component 30 through the liquid replenishing tube 60.

[0107] In the present application, the liquid cooling unit further includes a flow dividing component 70, which is located between the first liquid storage part 301 and the second liquid storage part 302, so that the liquid in the first liquid storage part 301 flows through the flow dividing component 70, and the flow dividing component 70 divides the liquid flowing through it, and the divided liquid flows into the second liquid storage part 302; the cooling component 33 is located on one side of the flow dividing component 70 to cool the liquid flowing through the flow dividing component 70. By making the flow dividing component 70 divide the liquid, the cooling effect of the cooling component 33 on the liquid is increased.

[0108] In the present application, the diverter assembly 70 includes a plurality of diverter channels, the liquid in the first liquid storage portion 301 enters each diverter channel through the upper end of each diverter channel, and the liquid in each diverter channel flows into the second liquid storage portion 302 through the lower end thereof; a vent is provided on the channel wall of each diverter channel; the cooling component 33 is a second blowing component, and the air outlet of the second blowing component is arranged toward the diverter assembly 70 to blow air toward the diverter assembly 70, and then the wind blown out by the diverter assembly 70 is blown toward the liquid in the diverter channel through the vent to cool the liquid in the diverter channel.

[0109] Optionally, the second blowing component is a blower or a fan.

[0110] Specifically, the flow splitter assembly 70 includes a plurality of flow splitter tubes 71 , and the lumen of each flow splitter tube 71 forms a flow splitter channel, that is, a vent hole is provided on the tube wall of the flow splitter tube 71 .

[0111] Optionally, at least one vent hole is provided on the flow channel wall of each flow channel. When a plurality of vent holes are provided on the flow channel wall of the flow channel, at least part of the plurality of vent holes are distributed along the axial direction of the flow channel, and / or at least part of the plurality of vent holes are distributed along the circumferential direction of the flow channel.

[0112] In the present application, the flow dividing assembly 70 further includes a flow dividing net 72, which is arranged in the flow dividing channel, so that the liquid in the flow dividing channel is divided by the flow dividing net 72 when flowing through the flow dividing net 72; that is, the liquid is divided into a dripping form when flowing through the flow dividing net 72. In this way, the cooling effect of the liquid can be further increased.

[0113] Specifically, a flow diversion net 72 is disposed in each flow diversion channel.

[0114] Optionally, the branch flow channel is extended in the vertical direction.

[0115] Optionally, a plurality of flow diversion nets 72 are provided in the flow diversion channel and are spaced apart along the axial direction thereof.

[0116] Optionally, the diverter net 72 is a mesh or gauze.

[0117] Optionally, a mounting opening may be provided on the flow channel wall of the diverting flow channel, so that the mesh structure may be inserted through the mounting opening, and the portion of the mesh structure located in the diverting flow channel forms the diverting mesh 72 .

[0118] In the present application, a plurality of guide channels 3011 are provided in the first liquid storage part 301, the upper end of each guide channel 3011 is connected to the liquid inlet of the liquid storage part 30, and the liquid flowing out from the lower end of each guide channel 3011 flows through the diversion component 70; the liquid entering through the liquid inlet of the liquid storage part 30 is initially diverted through the plurality of guide channels 3011.

[0119] Optionally, the diameter or equivalent diameter of the flow guiding channel 3011 is smaller to form a thin channel.

[0120] Optionally, the guide channel 3011 is extended in the vertical direction.

[0121] In the present application, optionally, the liquid inlet of the liquid storage component 30 is arranged at the top or upper part thereof, that is, the liquid inlet of the liquid storage component 30 is arranged at the top or upper part of the first liquid storage part 301. For example, Figure 3 The liquid inlet 303 is the liquid inlet of the liquid storage component 30.

[0122] In the present application, optionally, the liquid outlet of the liquid storage component 30 is arranged at the bottom or lower part thereof, that is, the liquid outlet of the liquid storage component 30 is arranged at the bottom or lower part of the second liquid storage part 302. For example, Figure 3 The liquid outlet 304 in FIG. 1 is the liquid outlet of the liquid storage component 30 .

[0123] In the present application, the liquid storage component 30 has a liquid infusion port connected to the internal cavity of the liquid storage component 30, and the second end of the liquid infusion tube 60 is connected to the liquid infusion port so that the second end of the liquid infusion tube 60 is connected to the internal cavity of the liquid storage component 30 through the liquid infusion port.

[0124] Specifically, the liquid replenishing port of the liquid storage component 30 is disposed on the first liquid storage portion 301 .

[0125] Optionally, the liquid inlet of the liquid storage component 30 is arranged at the top or upper part thereof, that is, the liquid inlet of the liquid storage component 30 is arranged at the top or upper part of the first liquid storage part 301 .

[0126] In the present application, the first liquid storage part 301 and the second liquid storage part 302 are connected by a connecting piece, but the connecting piece will not block the vent holes of the diversion channel of the diversion component 70, nor will it block the wind blown out by the second blowing component.

[0127] In the present application, a dustproof net 73 is provided on the outer side of the diversion component 70 .

[0128] Optionally, the dustproof net 73 is connected and fixed to the first liquid storage part 301 and / or the second liquid storage part 302 .

[0129] In the present application, during the specific implementation, in the refrigerant circulation system 10, the refrigerant is compressed by the compressor 14 and then condensed by the condenser 13, then throttled by the throttling member 12, and then evaporated and absorbed heat by the evaporator 11, which is a conventional refrigeration cycle process; in this conventional refrigeration cycle process, the first blowing component 131 is opened synchronously, and the air outlet of the first blowing component 131 is set toward the condenser 13, so as to dissipate heat and cool down the condenser 13 through the first blowing component 131. The first pump body 221 is opened synchronously, the first control valve 311, the second control valve 321, the third control valve 361, and the fourth control valve 391 are all in a closed state, and the liquid in the liquid cooling circulation system 20 exchanges heat with the refrigerant in the evaporator 11 in the heat exchange section through the power of the first pump body 221, that is, the liquid in the heat exchange section releases heat and cools down, and the cooled liquid flows into the liquid cooling component 21 to cool the target area; that is, the unit is running in the first operation mode at this time.

[0130] When the ambient temperature is high, it is difficult for the condenser 13 to dissipate heat, the condensing temperature rises, the power increases, the current increases, and the unit is prone to high pressure, exhaust or current protection. The liquid cooling unit of the present application, when the ambient temperature is high, turns on the auxiliary pump 401 and / or the liquid supply pump 372 to run, the third control valve 361 opens synchronously, the cooling component 33 opens, and the liquid in the liquid storage component 30 begins to circulate. The liquid flows from the liquid inlet of the liquid storage component 30 into the first liquid storage part 301, and then flows through the diversion component 70. It evaporates through the second blowing component. The liquid is cooled to a temperature close to the wet bulb temperature. The low-temperature liquid flows out from the liquid outlet of the liquid storage component 30, and flows through the third pipe section, After the tenth pipeline 40 and / or the fourth pipe section and the pipe section between the first end and the sixth connection point 351 of the third pipeline 35, and the pipe section between the sixth connection point 351 and the second end of the third pipeline 35, the low-temperature liquid absorbs the heat of the wind near the heat exchanger 34 in the heat exchanger 34 to cool the wind, and the cooled low-temperature wind cools the condenser 13 to effectively reduce the condensing temperature, thereby reducing power, increasing cooling capacity, improving energy efficiency, and making the unit run more stably and reliably. The liquid flowing out of the heat exchanger 34 flows through the fourth pipeline 36 and the sixth pipeline 38 in turn, and then flows back to the liquid storage component 30.

[0131] Optionally, the target area is a computer room or an industrial area.

[0132] During the specific implementation, when the ambient temperature is low, there is no need to start the refrigerant circulation system 10, that is, there is no need to start the compressor 14, and the low-temperature liquid in the liquid storage component 30 can be directly used to cool the target area; after starting up, the cooling component 33 and the liquid supply pump 372 are started, the first control valve 311, the second control valve 321 and the fourth control valve 391 are opened, and the third control valve 361 is closed, that is, the unit is running in the second operating mode at this time. In order to complete the cooling of the target area more quickly, the first blowing component 131 can be started synchronously, and the first blowing component 131 is blown toward the heat exchange component 34, and the heat exchange at the liquid storage component 30 and the heat exchange component 34 is started at the same time to speed up the cooling rate. When the unit is running stably, only the heat exchange at the liquid storage component 30 can be retained.

[0133] Specifically, the startup temperature T1 is set, and when the real-time temperature T0≤T1, the startup and operation of the refrigerant circulation system 10 are stopped, that is, the startup and operation of the compressor 14 are stopped.

[0134] Specifically, the liquid storage component 30 is an air-cooled phase-change heat exchanger, which can make the temperature of the circulating liquid lower than the dry-bulb temperature of air.

[0135] Specifically, in the second operating mode, the heat exchange element 34 performs air-cooled conduction heat exchange.

[0136] During the specific implementation process, the unit can be operated in the second operation mode more often, thereby reducing the operation opportunities of the compressor 14, thereby reducing the power consumption of the unit and facilitating energy saving.

[0137] During the specific implementation process, when the circulated liquid flows into the liquid inlet of the liquid storage component 30, it is guided through the large-area guide channel 3011 for fine pores, and then the liquid is distributed to multiple diversion channels; when the liquid flows through the diversion channels, the diversion network 72 can also filter the liquid.

[0138] During the specific implementation process, the liquid cooling circulation system 20 may experience water dripping, evaporation and other phenomena during operation, causing the closed liquid cooling circulation system to experience pressure drop and insufficient liquid supply. The drop in water pressure will cause the cooling of the target area to slow down; at this time, liquid can be replenished to the liquid cooling circulation system 20 through the liquid storage component 30.

[0139] During the specific implementation process, when the unit is running in the second operating mode, the water pressure is detected by the water pressure detection component 223, and the frequency of the liquid supply pump 372 is controlled to keep the liquid cooling circulation system 20 at a good water pressure; when the unit is about to exit the second operating mode, since the liquid cooling circulation system 20 has maintained a good water pressure, and the liquid supply pump 372 will not immediately stop at zero speed, in order to prevent the liquid supply pump 372 from interfering with the already stable good water pressure, the first control valve 311, the second control valve 321 and the fourth control valve 391 are closed, and the third control valve 361 is opened, so that the liquid sucked out by the liquid supply pump 372 flows back to the liquid storage component 30 through the third pipeline 35, the heat exchange element 34, the fourth pipeline 36, and the sixth pipeline 38, so that the liquid supply pump 372 no longer interferes with the already stable water pressure of the liquid cooling circulation system 20.

[0140] The present invention also provides a control method for a liquid cooling unit, which is applicable to the above-mentioned liquid cooling unit; the control method comprises:

[0141] Control the first pipeline 31 and the second pipeline 32 to be in a disconnected state, and control the refrigerant circulation system 10 to operate, so that the liquid cooling unit operates in a first operating mode;

[0142] The refrigerant circulation system 10 is controlled not to start, and the first pipeline 31 and the second pipeline 32 are controlled to be in a connected state, so that the liquid cooling unit operates in the second operation mode.

[0143] In the present application, when the liquid cooling unit operates in the first operation mode, the control method further includes: controlling the third pipeline 35 and the fourth pipeline 36 to be in a connected state.

[0144] In the present application, the control method further includes: when the liquid cooling unit operates in the first operation mode, the seventh pipeline 39 is controlled to be disconnected, and the pipe section between the third connection point 362 and the second end of the fourth pipeline 36 is controlled to be connected. When the liquid cooling unit operates in the second operation mode, the third pipeline 35 and the seventh pipeline 39 are controlled to be connected, and the pipe section between the third connection point 362 and the second end of the fourth pipeline 36 is controlled to be disconnected.

[0145] In the present application, when the pressure of the liquid cooling circulation system 20 is adjusted to the preset water pressure, and when the liquid cooling unit is to exit the second operating mode, the control method also includes: controlling the third pipeline 35 to be in a connected state, controlling the seventh pipeline 39 to be in a disconnected state, and controlling the pipe section between the third connection point 362 of the fourth pipeline 36 and its second end to be in a connected state.

[0146] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0147] In the liquid cooling unit provided by the present invention, it includes a refrigerant circulation system 10, a liquid cooling circulation system 20, a liquid storage component 30, and a cooling component 33. The refrigerant circulation system 10 includes an evaporator 11; the liquid cooling circulation system 20 includes a liquid cooling component 21; the heat exchange medium in the liquid cooling circulation system 20 exchanges heat with the refrigerant in the evaporator 11 to reduce the temperature of the heat exchange medium in the liquid cooling circulation system 20; the liquid cooling component 21 is used to cool the target area; the liquid cooling circulation system 20 is provided with a first The connection point 201 and the second connection point 202, the first connection point 201 is located upstream of the liquid cooling component 21, and the second connection point 202 is located downstream of the liquid cooling component 21; the liquid outlet of the liquid storage component 30 is connected to the first connection point 201 through the first pipeline 31, and the liquid inlet of the liquid storage component 30 is connected to the second connection point 202 through the second pipeline 32; the first pipeline 31 and the second pipeline 32 can be set to be on and off; the cooling component 33 is used to cool the liquid in the liquid storage component 30. The liquid cooling unit of the present application can realize two operating modes, which solves the problem that the liquid cooling unit in the prior art has a single operating mode.

[0148] The liquid cooling unit of the present application: 1. It can work under high temperature and high load, improve the reliability of the unit, and reduce the protection probability of the unit; 2. It can reduce the condensing temperature of the unit and improve the energy efficiency of the unit; 3. The compressor can be turned off in a low temperature environment, so that the unit has the ability of natural cooling, thereby reducing power consumption and improving the availability of the unit; 4. It can frequently replenish liquid through pressure monitoring, and there is no need to replenish the system when it is relatively short of liquid, which enhances the reliability of the unit system. 5. It can perform high-frequency pressure adjustment and correction to keep the system hydraulic pressure in good condition.

[0149] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0150] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0151] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid cooling unit, characterized in that: include: A refrigerant circulation system (10) includes an evaporator (11); A liquid cooling circulation system (20) comprising a liquid cooling component (21); a heat exchange medium in the liquid cooling circulation system (20) exchanges heat with a refrigerant in the evaporator (11) so as to reduce the temperature of the heat exchange medium in the liquid cooling circulation system (20); the liquid cooling component (21) is used to cool a target area; A liquid storage component (30), wherein a first connection point (201) and a second connection point (202) are provided on the liquid cooling circulation system (20), wherein the first connection point (201) is located upstream of the liquid cooling component (21), and the second connection point (202) is located downstream of the liquid cooling component (21); the liquid outlet of the liquid storage component (30) is connected to the first connection point (201) via a first pipeline (31), and the liquid inlet of the liquid storage component (30) is connected to the second connection point (202) via a second pipeline (32); and the first pipeline (31) and the second pipeline (32) can be set to be openable and disconnectable; A cooling component (33), wherein the cooling component (33) is used to cool the liquid in the liquid storage component (30).

2. The liquid cooling unit according to claim 1, characterized in that: The refrigerant circulation system (10) further includes a condenser (13); the liquid cooling unit further includes: A heat exchanger (34), wherein the liquid inlet of the heat exchanger (34) is connected to the liquid outlet of the liquid storage component (30) via a third pipeline (35), and the liquid outlet of the heat exchanger (34) is connected to the liquid inlet of the liquid storage component (30) via a fourth pipeline (36); the third pipeline (35) and the fourth pipeline (36) can both be set to be switched on and off; the heat exchanger (34) is located on one side of the condenser (13), so that the liquid in the heat exchanger (34) exchanges heat with the condenser (13) through air, so as to cool the condenser (13).

3. The liquid cooling unit according to claim 2, characterized in that: The liquid cooling unit also includes: a fifth pipeline (37), wherein a first end of the fifth pipeline (37) is connected to a liquid outlet of the liquid storage component (30), a first end of the third pipeline (35) and a first end of the first pipeline (31) are both connected to a second end of the fifth pipeline (37); a second end of the third pipeline (35) is connected to a liquid inlet of the heat exchange element (34); and a second end of the first pipeline (31) is connected to the first connection point (201); and / or a sixth pipeline (38), wherein the first end of the second pipeline (32) is connected to the second connection point (202), and the first end of the fourth pipeline (36) is connected to the liquid outlet of the heat exchange component (34); the second end of the second pipeline (32) and the second end of the fourth pipeline (36) are both connected to the first end of the sixth pipeline (38), and the second end of the sixth pipeline (38) is connected to the liquid inlet of the liquid storage component (30).

4. The liquid cooling unit according to claim 3, characterized in that: When the liquid cooling unit includes the fifth pipeline (37), a filter (371) and / or a liquid supply pump (372) is provided on the fifth pipeline (37).

5. The liquid cooling unit according to claim 2, characterized in that: The liquid cooling unit also includes: A seventh pipeline (39), wherein a third connection point (362) is arranged on the fourth pipeline (36); a fourth connection point (204) is arranged on the liquid cooling circulation system (20), and the fourth connection point (204) is located downstream of the first connection point (201) and upstream of the liquid cooling component (21); the two ends of the seventh pipeline (39) are respectively connected to the third connection point (362) and the fourth connection point (204); the seventh pipeline (39) can be set to be on and off; and the pipe section between the third connection point (362) of the fourth pipeline (36) and the liquid inlet of the liquid storage component (30) can be set to be on and off.

6. The liquid cooling unit according to claim 5, characterized in that: The liquid cooling unit further comprises a first blowing component (131), wherein an air outlet of the first blowing component (131) is arranged toward the heat exchange element (34) so ​​as to blow air toward the heat exchange element (34), thereby reducing the temperature of the liquid in the heat exchange element (34).

7. The liquid cooling unit according to claim 5, characterized in that: The liquid cooling unit further comprises a first blowing component (131), wherein an air outlet of the first blowing component (131) is arranged toward the heat exchange component (34) or the condenser (13); when the air outlet of the first blowing component (131) is arranged toward the heat exchange component (34), air is blown toward the heat exchange component (34), thereby reducing the temperature of the liquid in the heat exchange component (34); when the air outlet of the first blowing component (131) is arranged toward the condenser (13), air is blown toward the condenser (13).

8. The liquid cooling unit according to claim 2, characterized in that: The liquid cooling unit also includes: a fifth pipeline (37), wherein a first end of the fifth pipeline (37) is connected to a liquid outlet of the liquid storage component (30), a first end of the third pipeline (35) and a first end of the first pipeline (31) are both connected to a second end of the fifth pipeline (37); a second end of the third pipeline (35) is connected to a liquid inlet of the heat exchange element (34); and a second end of the first pipeline (31) is connected to the first connection point (201); a tenth pipeline (40), wherein a sixth connection point (351) is provided on the third pipeline (35), a first end of the tenth pipeline (40) is connected to the liquid outlet of the liquid storage component (30), and a second end of the tenth pipeline (40) is connected to the sixth connection point (351); The fifth pipeline (37) is provided with a liquid supply pump (372), and the tenth pipeline (40) is provided with an auxiliary pump (401), and the auxiliary pump (401) is used to provide auxiliary power for supplying liquid to the heat exchange element (34).

9. The liquid cooling unit according to claim 1, characterized in that: The liquid cooling unit also includes: a liquid level detection member (50), at least a portion of which is disposed in the liquid storage member (30) to detect the liquid level in the liquid storage member (30); and / or A liquid infusion tube (60), wherein a first end of the liquid infusion tube (60) is used for introducing liquid, and a second end of the liquid infusion tube (60) is used for communicating with an internal cavity of the liquid storage component (30).

10. The liquid cooling unit according to claim 1, characterized in that: The liquid storage component (30) comprises a first liquid storage part (301) and a second liquid storage part (302), wherein the first liquid storage part (301) is located above the second liquid storage part (302); the liquid inlet of the liquid storage component (30) is arranged on the first liquid storage part (301), and the liquid outlet of the liquid storage component (30) is arranged on the second liquid storage part (302); The liquid cooling unit further comprises a flow dividing component (70), wherein the flow dividing component (70) is located between the first liquid storage part (301) and the second liquid storage part (302), so that the liquid in the first liquid storage part (301) flows through the flow dividing component (70), and the flow dividing component (70) divides the liquid flowing through it, and the divided liquid flows into the second liquid storage part (302); The cooling component (33) is located on one side of the flow dividing component (70) to cool the liquid flowing through the flow dividing component (70).

11. The liquid cooling unit according to claim 10, characterized in that: The flow dividing assembly (70) comprises a plurality of flow dividing channels, the liquid in the first liquid storage part (301) enters each of the flow dividing channels through the upper end of each of the flow dividing channels, and the liquid in each of the flow dividing channels flows into the second liquid storage part (302) through the lower end thereof; a vent hole is provided on the channel wall of each of the flow dividing channels; The cooling component (33) is a second blowing component, and the air outlet of the second blowing component is arranged toward the diversion component (70) to blow air toward the diversion component (70), thereby allowing the air blown out by the diversion component (70) to blow toward the liquid in the diversion channel through the air vent to cool the liquid in the diversion channel.

12. The liquid cooling unit according to claim 11, characterized in that: The flow diversion component (70) further comprises a flow diversion net (72), wherein the flow diversion net (72) is arranged in the flow diversion channel so that the liquid in the flow diversion channel is diverted by the flow diversion net (72) when flowing through the flow diversion net (72).

13. The liquid cooling unit according to claim 10, characterized in that: A plurality of guide channels (3011) are provided in the first liquid storage part (301), the upper end of each of the guide channels (3011) being connected to the liquid inlet of the liquid storage component (30), and the liquid flowing out from the lower end of each of the guide channels (3011) flows through the diversion component (70), so as to perform initial diversion of the liquid entering through the liquid inlet of the liquid storage component (30) through the plurality of guide channels (3011).

14. A control method for a liquid cooling unit, characterized in that: Applicable to the liquid cooling unit according to any one of claims 1 to 13; the control method comprises: Controlling the first pipeline (31) and the second pipeline (32) to be in a disconnected state, and controlling the refrigerant circulation system (10) to operate, so that the liquid cooling unit operates in a first operating mode; The refrigerant circulation system (10) is controlled not to start, and the first pipeline (31) and the second pipeline (32) are controlled to be in a connected state, so that the liquid cooling unit operates in a second operating mode.

15. The control method of the liquid cooling unit according to claim 14, characterized in that: When the liquid cooling unit operates in the first operation mode, the control method further includes: The third pipeline (35) and the fourth pipeline (36) are controlled to be in a connected state.

16. The control method of the liquid cooling unit according to claim 15, characterized in that: The control method further comprises: When the liquid cooling unit operates in the first operating mode, the seventh pipeline (39) is controlled to be in a disconnected state, and the pipe section between the third connection point (362) and the second end of the fourth pipeline (36) is controlled to be in a connected state; When the liquid cooling unit operates in the second operating mode, the third pipeline (35) and the seventh pipeline (39) are controlled to be in a connected state, and the pipe section between the third connection point (362) of the fourth pipeline (36) and its second end is controlled to be in a disconnected state.

17. The control method of the liquid cooling unit according to claim 14, characterized in that: When the pressure of the liquid cooling circulation system (20) is adjusted to the preset water pressure, and when the liquid cooling unit is about to exit the second operation mode, the control method further comprises: The third pipeline (35) is controlled to be in a connected state, the seventh pipeline (39) is controlled to be in a disconnected state, and the pipe section between the third connection point (362) and the second end of the fourth pipeline (36) is controlled to be in a connected state.

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