Liquid cooling unit with wide liquid temperature

Abstract

The utility model provides a wide liquid temperature liquid cooling unit, which is provided with a heating assembly capable of heating a cooling medium, a cooling assembly for cooling the cooling medium, and a three-way regulating valve with a first state and a second state, when in use, the cooling medium is fed into the liquid cooling unit, in the first state, the heating assembly heats the cooling medium, and in the second state, the heating assembly heats the cooling medium; in the first state, the cooling assembly cools the cooling medium and discharges the cooling medium through the liquid outlet, and in the second state, the cooling medium cools the cooling medium and then discharges the cooling medium through the liquid outlet, and the liquid temperature ranges from the cooling medium liquid temperature to the cooling lowest temperature of the cooling assembly. Therefore, the liquid cooling unit with the first state and the second state has the liquid temperature range from the lowest temperature capable of being cooled by the cooling assembly to the highest temperature capable of being heated by the heating assembly, compared with the prior art that only the cooling medium is cooled, the liquid temperature range is wider, and the requirements of tests in the energy storage industry for the liquid temperature range can be met.

Description

Technical Field

[0001] The present application relates to the technical field of liquid cooling machines, and in particular to a liquid cooling unit with a wide liquid temperature range. Background Art

[0002] A liquid cooling unit is a device that uses liquid circulation to achieve refrigeration. Its principle is to absorb and release heat through the evaporation and condensation process of the liquid, thereby reducing the temperature of the cooled object. In the prior art, the evaporator is placed in a liquid tank. The refrigerant in the evaporator absorbs the heat of the coolant in the liquid tank during the evaporation process, so that the coolant is discharged after it is reduced to a suitable temperature. The evaporated refrigerant is cooled by the condenser and then returned to the evaporator for circulation. During the test process of the energy storage industry, a liquid cooling unit will be used to provide coolant to ensure that the battery is in a set temperature environment during the test process, thereby obtaining accurate test data.

[0003] In some tests in the energy storage industry, batteries need to be tested in extreme environments or overheated environments. However, the coolant temperature range provided by existing liquid cooling units is limited and cannot meet the requirements for the liquid temperature range during the energy storage industry's tests. Summary of the invention

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a liquid cooling unit with a wide liquid temperature range, comprising:

[0005] A heating component, wherein the heating component has a first inlet and a first outlet, wherein the first inlet is connected to the liquid inlet and is used to deliver a cooling medium to the heating component, and the cooling medium is discharged from the first outlet;

[0006] A cooling component, the cooling component is arranged at the end of the heating component away from the liquid inlet, has a second inlet and a second outlet communicated with the first outlet, and the cooling medium is discharged from the second outlet after being cooled by the cooling component;

[0007] A three-way regulating valve, wherein the three-way regulating valve has a first opening connected to the first outlet, a second opening connected to the second outlet, and a third opening connected to the liquid outlet; and the three-way regulating valve has a first state and a second state. When in the first state, the first opening is connected to the third opening and is isolated from the second opening, and the cooling medium flows through the heating component and the three-way regulating valve and is discharged from the liquid outlet; when in the second state, the second opening is connected to the third opening and is isolated from the first opening, and the cooling medium flows through the heating component, the cooling component, and the three-way regulating valve and flows out from the liquid outlet.

[0008] According to the technical solution provided in the embodiment of the present application, the three-way regulating valve has a third state. When in the third state, the first opening, the second opening and the third opening are connected, and the openings of the first opening and the second opening are adjustable. A portion of the cooling medium flows through the heating component and the cooling component and flows into the three-way regulating valve, and another portion flows through the heating component and flows into the three-way regulating valve, and flows out from the liquid outlet after confluence.

[0009] According to the technical solution provided in the embodiment of the present application, the heating assembly includes a heating tube, the heating tube has the first inlet and the first outlet, a heater is provided in the heating tube, a power supply electrically connected to the heater is provided on one side of the heating tube, and when the heater is connected to the circuit of the power supply, the heater heats the cooling medium flowing through the heating tube.

[0010] According to the technical solution provided in the embodiment of the present application, the heating component also includes a temperature control switch, which includes a circuit switch arranged between the heater and the power supply, and a first temperature measuring probe arranged in the heating tube. When the first temperature measuring probe measures that the liquid temperature in the heating tube is lower than a preset threshold value, the circuit switch controls the circuit between the heater and the power supply to be connected. When the first temperature measuring probe measures that the liquid temperature in the heating tube is higher than the preset threshold value, the circuit switch controls the circuit between the heater and the power supply to be disconnected.

[0011] According to the technical solution provided in the embodiment of the present application, the cooling component includes a liquid tank, the liquid tank has the second inlet and the second outlet, an evaporator is provided in the liquid tank, and the evaporator is used to cool the cooling medium in the liquid tank.

[0012] According to the technical solution provided in the embodiment of the present application, a second water pipe is provided between the heating pipe and the liquid tank, one end of the second water pipe is connected to the first outlet, and the other end is connected to the second inlet, and a third water pipe is provided in the middle of the second water pipe, one end of the third water pipe is connected to the second water pipe, and the other end is connected to the first opening.

[0013] According to the technical solution provided in the embodiment of the present application, a stop valve is provided on the second water pipe, and the stop valve is arranged between the second inlet and the third water pipe away from the first opening end. When the three-way regulating valve is in the first state, the stop valve is closed to block the cooling medium from flowing into the liquid tank.

[0014] According to the technical solution provided in the embodiment of the present application, a fourth water pipe is provided between the three-way regulating valve and the liquid outlet, one end of the fourth water pipe is connected to the third opening, and the other end is connected to the liquid outlet, a water pump is provided on the fourth water pipe, the water pump has a third inlet and a third outlet connected to the third opening, the third outlet is connected to the liquid outlet, and the water pump is used to drive the cooling medium to flow toward the liquid outlet.

[0015] According to the technical solution provided in the embodiment of the present application, a second temperature measuring probe is also provided on the fourth water pipe, and the second temperature measuring probe is arranged between the third outlet and the liquid outlet, and is used to feedback the temperature of the cooling medium discharged from the liquid outlet.

[0016] According to the technical solution provided in the embodiment of the present application, a first water pipe connected to the interior of the liquid tank is provided at the bottom of the liquid tank, and a drain port is provided at the first water pipe away from the end of the liquid tank. The drain port is connected to the first water pipe away from the end of the liquid tank for draining the accumulated liquid in the liquid tank.

[0017] In summary, the present application proposes a liquid cooling unit with a wide liquid temperature, which is provided with a heating component that can heat a cooling medium, and a cooling component that cools the cooling medium, and also has a three-way regulating valve in a first state and a second state. In the first state, the first opening connected to the heating component is connected to the third opening connected to the drain port, and in the second state, the second opening connected to the cooling component is connected to the third opening connected to the drain port. When in use, the cooling medium is fed into the liquid cooling unit. In the first state, the heating component heats the cooling medium and discharges it through the liquid outlet. The liquid temperature range is from the liquid temperature of the cooling medium to the highest temperature that the heating component can heat. In the second state, the cooling component cools the cooling medium and then discharges it through the liquid outlet. The liquid temperature range is from the liquid temperature of the cooling medium to the lowest temperature that the cooling component can cool. Therefore, the liquid cooling unit with the first state and the second state has a liquid temperature range from the lowest temperature that the cooling component can cool to the highest temperature that the heating component can heat. Compared with the prior art that only cools the cooling medium, its liquid temperature range is wider and can meet the requirements of the energy storage industry test for the liquid temperature range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a liquid cooling unit with a wide liquid temperature range provided in an embodiment of the present application.

[0019] The text annotations in the figure represent:

[0020] 1. Heating assembly; 11. Power supply; 12. Heater; 13. Heating tube; 14. Circuit switch; 15. First temperature measuring probe;

[0021] 2. Cooling assembly; 21. Liquid tank; 22. Evaporator; 23. Compressor; 24. Condenser;

[0022] 3. Three-way regulating valve; 31. First opening; 32. Second opening; 33. Third opening;

[0023] 41. Liquid inlet; 42. Liquid outlet; 43. Liquid discharge port; 44. Flow meter; 45. Three-way connector; 46. Stop valve; 47. Water pump; 48. Pressure sensor; 49. Pressure gauge; 410. Second temperature probe. DETAILED DESCRIPTION

[0024] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0025] 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 application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] As mentioned in the background technology, in view of the problems in the prior art, the present application proposes a liquid cooling unit with a wide liquid temperature, comprising:

[0027] The heating component 1 has a first inlet and a first outlet, the first inlet is connected to the liquid inlet 41, and is used to transport a cooling medium to the heating component 1, the cooling medium is discharged from the first outlet, the cooling medium flows in from the liquid inlet 41, flows through the first inlet and the first outlet, and can be heated by the heating component 1, thereby increasing the liquid temperature of the cooling medium;

[0028] A cooling component 2, wherein the cooling component 2 is disposed at the end of the heating component 1 away from the liquid inlet 41, and has a second inlet and a second outlet connected to the first outlet. The cooling medium is cooled by the cooling component 2 and discharged from the second outlet. The cooling medium flows out from the first outlet and can flow through the second inlet and the second outlet, and can be cooled by the cooling component 2 to reduce the liquid temperature of the cooling medium;

[0029] The three-way regulating valve 3 has a first opening 31 connected to the first outlet, a second opening 32 connected to the second outlet, and a third opening 33 connected to the liquid outlet 42; and the three-way regulating valve 3 has a first state and a second state. When in the first state, the first opening 31 is connected to the third opening 33 and isolated from the second opening 32, and the cooling medium flows through the heating component 1 and the three-way regulating valve 3 and is discharged from the liquid outlet 42; when in the second state, the second opening 32 is connected to the third opening 33 and is isolated from the first opening 32. 1 isolation, the cooling medium flows through the heating component 1, the cooling component 2, and the three-way regulating valve 3 and flows out from the liquid outlet 42, wherein, when in the first state, the heating component 1 heats the cooling medium, and the highest value of the cooling medium liquid temperature range discharged from the liquid outlet 42 is the highest temperature that the heating component 1 can heat, and when in the second state, the heating component 1 does not heat the cooling medium, and the cooling component 2 cools the cooling medium, and at this time, the lowest value of the cooling medium liquid temperature range discharged from the liquid outlet 42 is the lowest temperature that the cooling component 2 can cool;

[0030] When in use, the cooling medium is fed into the liquid cooling unit. In the first state, the heating component 1 heats the cooling medium and discharges it through the liquid outlet 42, and its liquid temperature range is from the liquid temperature of the cooling medium to the highest temperature that the heating component 1 can heat. In the second state, the cooling component 2 cools the cooling medium and then discharges it through the liquid outlet 42, and its liquid temperature range is from the liquid temperature of the cooling medium to the lowest temperature that the cooling component 2 can cool. Therefore, the liquid cooling unit with the first state and the second state has a liquid temperature range from the lowest temperature that the cooling component 2 can cool to the highest temperature that the heating component 1 can heat. Compared with the prior art that only cools the cooling medium, the liquid temperature range of the present application is wider and can meet the requirements of the energy storage industry test for the liquid temperature range.

[0031] In a preferred embodiment, the three-way regulating valve 3 has a third state. When in the third state, the first opening 31, the second opening 32 and the third opening 33 are connected, and the openings of the first opening 31 and the second opening 32 are adjustable. A part of the cooling medium flows through the heating component 1 and the cooling component 2 and flows into the three-way regulating valve 3, and another part flows through the heating component 1 and flows into the three-way regulating valve 3, and flows out from the liquid outlet 42 after confluence.

[0032] like Figure 1As shown, when the three-way regulating valve 3 is in the third state, the heating component 1 heats the cooling medium flowing through, and a part of the heated cooling medium enters the first opening 31, and the other part flows into the cooling component 2, and the cooling component 2 cools down the cooling medium, and then enters the second opening 32 through the second outlet. After the two parts converge, they flow out from the liquid outlet 42. When the temperature of the cooling medium flowing out is lower than the required temperature, the opening of the second opening 32 is reduced, and the opening of the first opening 31 is increased to increase the temperature of the cooling medium flowing out. Similarly, when the temperature of the cooling medium flowing out is higher than the required temperature, the opening of the second opening 32 can be increased, and the opening of the first opening 31 can be reduced. Then, in the third state, the opening of the first opening 31 and the second opening 32 can be adjusted to make the temperature of the cooling medium flowing out have good controllability, so that the temperature of the cooling medium transported outward is kept stable, and the inaccurate temperature control using only the heating component 1 is avoided.

[0033] In a preferred embodiment, the heating assembly 1 includes a heating tube 13, the heating tube 13 has the first inlet and the first outlet, a heater 12 is provided in the heating tube 13, a power supply 11 electrically connected to the heater 12 is provided on one side of the heating tube 13, and when the heater 12 is connected to the circuit of the power supply 11, the heater 12 heats the cooling medium flowing through the heating tube 13;

[0034] like Figure 1 As shown, the cooling medium flowing through the heating tube 13 can be heated by the heater 12, so that the heating component 1 can heat the cooling medium. Optionally, the heater 12 is a heating wire, which can generate heat when powered on to heat the cooling medium.

[0035] In a preferred embodiment, the heating assembly 1 further includes a temperature control switch, which includes a circuit switch 14 disposed between the heater 12 and the power supply 11, and a first temperature measuring probe 15 disposed in the heating tube 13. When the first temperature measuring probe 15 measures that the liquid temperature in the heating tube 13 is lower than a preset threshold value, the circuit switch 14 controls the circuit between the heater 12 and the power supply 11 to be connected. When the first temperature measuring probe 15 measures that the liquid temperature in the heating tube 13 is higher than a preset threshold value, the circuit switch 14 controls the circuit between the heater 12 and the power supply 11 to be disconnected.

[0036] like Figure 1As shown, when the liquid temperature in the heating tube 13 is higher than a preset threshold, the temperature control switch will disconnect the circuit between the heater 12 and the power supply 11, so that the heater 12 will not continue to heat the cooling medium, thereby avoiding damage to the heater 12 or other components due to excessive temperature. The preset threshold is set by the user, and factors such as the heating temperature of the heater 12 and the material of the heating tube 13 must be considered to ensure that the cooling medium will not cause damage to other components when it is at a critical temperature.

[0037] In a preferred embodiment, the cooling assembly 2 includes a liquid tank 21, the liquid tank 21 has the second inlet and the second outlet, and an evaporator 22 is provided in the liquid tank 21, and the evaporator 22 is used to cool the cooling medium in the liquid tank 21;

[0038] like Figure 1 As shown, the liquid refrigerant in the evaporator 22 evaporates into gas, absorbs the heat of the cooling medium in the liquid tank 21, and plays a cooling role. The outlet of the evaporator 22 is connected to the inlet of the compressor 23, the outlet of the compressor 23 is connected to the inlet of the condenser 24, and the outlet of the condenser 24 is connected to the inlet of the evaporator 22. The gaseous refrigerant is extracted by the compressor 23 and sent to the condenser 24 for cooling, converted into liquid again, and then sent to the evaporator 22 for recycling.

[0039] In a preferred embodiment, a second water pipe is provided between the heating pipe 13 and the liquid tank 21, one end of the second water pipe is connected to the first outlet, and the other end is connected to the second inlet, and a third water pipe is provided in the middle of the second water pipe, one end of the third water pipe is connected to the second water pipe, and the other end is connected to the first opening 31;

[0040] like Figure 1 As shown, a three-way joint 45 is provided on the second water pipe, and the third water pipe is connected to the second water pipe through the three-way joint 45, so that the cooling medium discharged from the heating component 1 can flow into the first opening 31, and can also flow into the second inlet of the liquid tank 21, so as to facilitate the three-way regulating valve 3 to switch between three states.

[0041] In a preferred embodiment, a stop valve 46 is provided on the second water pipe, and the stop valve 46 is provided between the second inlet and the end of the third water pipe away from the first opening 31. When the three-way regulating valve 3 is in the first state, the stop valve 46 is closed to prevent the cooling medium from flowing into the liquid tank 21.

[0042] like Figure 1As shown, the shut-off valve 46 after closing can prevent the cooling medium from flowing into the liquid tank 21. When the three-way regulating valve 3 is in the first state, after the heating component 1 heats the cooling medium, all of it enters the first opening 31 through the third water pipe. At the same time, the second opening 32 is separated to prevent the liquid tank 21 from being backflowed by the cooling medium.

[0043] In a preferred embodiment, a fourth water pipe is provided between the three-way regulating valve 3 and the liquid outlet 42, one end of the fourth water pipe is connected to the third opening 33, and the other end is connected to the liquid outlet 42, a water pump 47 is provided on the fourth water pipe, the water pump 47 has a third inlet and a third outlet connected to the third opening 33, the third outlet is connected to the liquid outlet 42, and the water pump 47 is used to drive the cooling medium to flow to the liquid outlet 42;

[0044] like Figure 1 As shown, the water pump 47 provides power so that the cooling medium can be stably transported to the liquid outlet 42 , and the cooling medium that has flowed out can flow back from the liquid inlet 41 after further testing.

[0045] In a preferred embodiment, the fourth water pipe is further provided with a second temperature measuring probe 410, which is disposed between the third outlet and the liquid outlet 42 and is used to provide feedback on the temperature of the cooling medium discharged from the liquid outlet 42;

[0046] like Figure 1 As shown, according to the temperature fed back by the second temperature measuring probe 410, by adjusting the opening degrees of the first opening 31 and the second opening 32, it is convenient to obtain the cooling medium with a stable temperature that meets the test requirements.

[0047] In a preferred embodiment, a first water pipe communicating with the inside of the liquid tank 21 is provided at the bottom of the liquid tank 21, and a drain port 43 is provided at the end of the first water pipe away from the liquid tank 21. The drain port 43 is communicated with the end of the first water pipe away from the liquid tank 21, and is used to drain the accumulated liquid in the liquid tank 21.

[0048] like Figure 1 As shown, when the equipment needs to be repaired, the first water pipe is arranged at the liquid tank 21, and all the liquid in the liquid tank 21 can be discharged through the drain port 43 to avoid interfering with maintenance and other work. In addition, a valve can be arranged at the end of the first water pipe close to the liquid tank 21 to ensure that under normal circumstances, the liquid in the liquid tank 21 will not be discharged along the first water pipe.

[0049] In a preferred embodiment, a pressure sensor 48 and a pressure gauge 49 are also provided on the third water pipe, which can provide feedback to the user on the pressure at the outlet, so as to avoid the situation where the cooling medium flows slowly due to low hydraulic pressure, etc., wherein the pressure sensor 48 is used to send information to the control circuit of the liquid cooling unit, and the pressure gauge 49 is convenient for the user to directly view the pressure at the site.

[0050] In a preferred embodiment, a fourth water pipe is provided between the liquid inlet 41 and the heating tube 13, one end of the fourth water pipe is connected to the liquid inlet 41, and the other end is connected to the heating tube 13. A flow meter 44 is provided on the fourth water pipe for feeding back the flow rate of the cooling medium to the user. The user can change the flow rate of the cooling medium when it is output to the outside by increasing or decreasing the flow rate, so as to better meet the test conditions.

[0051] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A liquid cooling unit with a wide liquid temperature range, It is characterized in that include: A heating component (1), the heating component (1) having a first inlet and a first outlet, the first inlet being in communication with a liquid inlet (41) and used for conveying a cooling medium to the heating component (1), the cooling medium being discharged from the first outlet; a cooling component (2), the cooling component (2) being arranged at an end of the heating component (1) away from the liquid inlet (41), having a second inlet and a second outlet connected to the first outlet, the cooling medium being discharged from the second outlet after being cooled by the cooling component (2); A three-way regulating valve (3), the three-way regulating valve (3) having a first opening (31) connected to the first outlet, a second opening (32) connected to the second outlet, and a third opening (33) connected to a liquid outlet (42); and the three-way regulating valve (3) has a first state and a second state. When in the first state, the first opening (31) is connected to the third opening (33) and isolated from the second opening (32), and the cooling medium flows through the heating component (1) and the three-way regulating valve (3) and is discharged from the liquid outlet (42); when in the second state, the second opening (32) is connected to the third opening (33) and isolated from the first opening (31), and the cooling medium flows through the heating component (1), the cooling component (2), and the three-way regulating valve (3) and flows out from the liquid outlet (42).

2. The liquid cooling unit with a wide liquid temperature range according to claim 1, It is characterized in that The three-way regulating valve (3) has a third state. When in the third state, the first opening (31), the second opening (32) and the third opening (33) are connected, and the openings of the first opening (31) and the second opening (32) are adjustable. A portion of the cooling medium flows through the heating component (1) and the cooling component (2) and flows into the three-way regulating valve (3), and another portion flows through the heating component (1) and flows into the three-way regulating valve (3), and then flows out from the liquid outlet (42) after converging.

3. The liquid cooling unit with a wide liquid temperature range according to claim 2, It is characterized in that The heating assembly (1) comprises a heating tube (13), the heating tube (13) having the first inlet and the first outlet, a heater (12) being arranged inside the heating tube (13), a power source (11) being electrically connected to the heater (12) being arranged on one side of the heating tube (13), and when the circuits of the heater (12) and the power source (11) are connected, the heater (12) heats the cooling medium flowing through the heating tube (13).

4. The liquid cooling unit with a wide liquid temperature range according to claim 3, It is characterized in that The heating assembly (1) further comprises a temperature control switch, the temperature control switch comprising a circuit switch (14) arranged between the heater (12) and the power supply (11), and a first temperature measuring probe (15) arranged in the heating tube (13); when the first temperature measuring probe (15) measures that the temperature of the liquid in the heating tube (13) is lower than a preset threshold value, the circuit switch (14) controls the circuit between the heater (12) and the power supply (11) to be connected; when the first temperature measuring probe (15) measures that the temperature of the liquid in the heating tube (13) is higher than the preset threshold value, the circuit switch (14) controls the circuit between the heater (12) and the power supply (11) to be disconnected.

5. The liquid cooling unit with a wide liquid temperature range according to claim 3, It is characterized in that The cooling assembly (2) comprises a liquid tank (21), the liquid tank (21) having the second inlet and the second outlet, an evaporator (22) being arranged in the liquid tank (21), the evaporator (22) being used to cool the cooling medium in the liquid tank (21).

6. The liquid cooling unit with a wide liquid temperature range according to claim 5, It is characterized in that A second water pipe is provided between the heating pipe (13) and the liquid tank (21), one end of the second water pipe being connected to the first outlet and the other end being connected to the second inlet, and a third water pipe is provided in the middle of the second water pipe, one end of the third water pipe being connected to the second water pipe and the other end being connected to the first opening (31).

7. The liquid cooling unit with a wide liquid temperature range according to claim 6, It is characterized in that The second water pipe is provided with a stop valve (46), and the stop valve (46) is arranged between the second inlet and the end of the third water pipe away from the first opening (31). When the three-way regulating valve (3) is in the first state, the stop valve (46) is closed to prevent the cooling medium from flowing into the liquid tank (21).

8. The liquid cooling unit with a wide liquid temperature range according to claim 2, It is characterized in that A fourth water pipe is provided between the three-way regulating valve (3) and the liquid outlet (42); one end of the fourth water pipe is in communication with the third opening (33), and the other end is in communication with the liquid outlet (42); a water pump (47) is provided on the fourth water pipe; the water pump (47) has a third inlet and a third outlet in communication with the third opening (33); the third outlet is in communication with the liquid outlet (42); and the water pump (47) is used to drive the cooling medium to flow toward the liquid outlet (42).

9. The liquid cooling unit with a wide liquid temperature range according to claim 8, It is characterized in that The fourth water pipe is also provided with a second temperature measuring probe (410), which is arranged between the third outlet and the liquid outlet (42) and is used to provide feedback on the temperature of the cooling medium discharged from the liquid outlet (42).

10. The liquid cooling unit with a wide liquid temperature range according to claim 5, It is characterized in that A first water pipe communicating with the interior of the liquid box (21) is provided at the bottom end of the liquid box (21); a liquid discharge port (43) is provided at the end of the first water pipe away from the liquid box (21); the liquid discharge port (43) is communicated with the end of the first water pipe away from the liquid box (21) and is used to discharge the accumulated liquid in the liquid box (21).

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