Liquid cooling device

Abstract

The utility model discloses a liquid cooling device, which is used for providing different test temperatures for a plurality of units to be tested and comprises a refrigerating system, a first water tank, a first water pump, a plurality of first heat exchangers, a plurality of second water tanks and a plurality of second water pumps, the output end of the refrigeration system is connected with the first water tank, and the input end is connected with the output end of the first water pump, the first heat exchanger and one to-be-tested unit; a first valve is arranged between the refrigerating system and the first water pump; the output end of the first water tank is connected with the input end of the first water pump; the output end of the first water pump is connected with the first heat exchanger and one to-be-tested unit; a second valve is arranged between the first water pump and the first heat exchanger; the first heat exchanger is connected with another unit to be tested and the second water tank; one end of the second water tank away from the first heat exchanger is connected with a second water pump; the end, away from the second water tank, of the second water pump is connected with the other to-be-tested unit. According to the utility model, the requirements of different test temperatures can be met simultaneously.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a liquid cooling device. Background Art

[0002] In the current energy storage industry, packs must meet testing requirements under various temperature conditions, and liquid coolers are essential cooling devices for these tests. Existing technologies typically use distributed, single-condition liquid cooling equipment, which can only output a single test temperature. This presents drawbacks such as a single temperature output and low standalone operating efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a liquid cooling device that can simultaneously meet the requirements of different test temperatures.

[0004] In order to solve the above technical problems, the utility model provides a liquid cooling device for providing different test temperatures for multiple units to be tested, comprising a refrigeration system, a first water tank, a first water pump, multiple first heat exchangers, multiple second water tanks and multiple second water pumps;

[0005] The output end of the refrigeration system is connected to the first water tank, and the input end is connected to the output end of the first water pump, the first heat exchanger and one of the units to be tested; a first valve is provided between the refrigeration system and the first water pump;

[0006] The output end of the first water tank is connected to the input end of the first water pump;

[0007] The output end of the first water pump is connected to the first heat exchanger and one of the units to be tested; a second valve is provided between the first water pump and the first heat exchanger;

[0008] The first heat exchanger is connected to another unit to be tested and the second water tank;

[0009] One end of the second water tank away from the first heat exchanger is connected to the second water pump; one end of the second water pump away from the second water tank is connected to another unit to be tested;

[0010] A third valve is provided between the first water pump and one of the units to be tested, and between the second water pump and another unit to be tested.

[0011] Furthermore, a plurality of detection sensors are provided between the refrigeration system and one of the units to be tested, between the first heat exchanger and another unit to be tested, and between the third valve and the unit to be tested.

[0012] Furthermore, the detection sensor includes at least one of a flow sensor, a temperature sensor and a pressure sensor.

[0013] Furthermore, the first valve includes a manual valve or an electric valve.

[0014] Furthermore, the second valve includes a two-way valve.

[0015] Furthermore, the third valve includes a three-way valve.

[0016] Furthermore, the unit to be tested includes a liquid inlet and a liquid outlet; the liquid inlet is connected to the third valve via a first switch, and the liquid outlet is connected to the first heat exchanger or the refrigeration system via a second switch.

[0017] Furthermore, the refrigeration system includes a second heat exchanger, a throttle valve, a condenser, a first one-way valve, a first compressor, a second compressor and a second one-way valve;

[0018] The output end of the second heat exchanger is connected to the first water tank, and the input end is connected to the output end of the first water pump, the first heat exchanger and one of the units to be tested; the first valve is arranged between the second heat exchanger and the first water pump; one end of the throttle valve is connected to the second heat exchanger, and the other end is connected to one end of the condenser; the other end of the condenser is connected to one end of the first one-way valve and one end of the second one-way valve; one end of the first one-way valve and the second one-way valve are both connected to the second heat exchanger through a first two-way valve; the other ends of the first one-way valve and the second one-way valve are respectively connected to one end of the first compressor and the second compressor; the other ends of the first compressor and the second compressor are connected to the heat exchanger.

[0019] Furthermore, the refrigeration system also includes a second two-way valve and a pressure controller; the second two-way valve is arranged between the first compressor and the throttle valve; the two ends of the pressure controller are respectively connected to one end of the second one-way valve and the other end of the second compressor.

[0020] Furthermore, a first pressure sensor is provided at the connection between the pressure controller and the second one-way valve; and a second pressure sensor is provided at the connection between the pressure controller and the second compressor.

[0021] Through the above technical solution, the utility model has the following beneficial effects:

[0022] This embodiment controls the temperature of the first water tank by the coordinated operation of the large and small compressors (i.e., the first compressor and the second compressor) in the refrigeration system at the high efficiency point, so that the temperature meets the minimum temperature working condition requirement, the first water pump provides the required pressure, and controls the flow rate required by the first working condition (i.e., temperature control of one of the units to be tested, and the temperature control of multiple units to be tested can be expressed as multiple working conditions) through the three-way valve (third valve). This embodiment also controls the flow entering the first heat exchanger by adjusting the opening of the two-way valve (second valve), and then controls the temperature of the second water tank corresponding to the working condition, thereby achieving temperature control of the second working condition, and the second water pump provides the required pressure, and adjusts the flow rate of the second working condition through the three-way valve (third valve). By analogy, the test requirements of multiple temperature working conditions such as the third working condition and the fourth working condition can be achieved. Therefore, this device can meet the requirements of different test temperatures at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall structure of a liquid cooling device in one embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the refrigeration system in the liquid cooling device in one embodiment of the present invention.

[0025] In the figure, 1. refrigeration system; 10. second heat exchanger; 11. throttle valve; 12. condenser; 13. first one-way valve; 14. first compressor; 15. second compressor; 16. second one-way valve; 17. first two-way valve; 18. second two-way valve; 19. pressure controller; 190. first pressure sensor; 191. second pressure sensor; 2. first water tank; 3. first water pump; 4. first heat exchanger; 5. second water tank; 6. second water pump; 7. unit to be tested; 8. first valve; 9. second valve; 20. third valve; 21. detection sensor; 22. first switch; 23. second switch. DETAILED DESCRIPTION

[0026] The following describes a liquid cooling device according to the present invention with reference to schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art may modify the present invention described herein while still achieving the beneficial effects of the present invention. Therefore, the following description should be understood as a general guide for those skilled in the art and not as a limitation of the present invention.

[0027] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0028] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0029] The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0030] like Figure 1 As shown, an embodiment of the present invention proposes a liquid cooling device for providing different test temperatures for multiple units to be tested 7, and the liquid cooling device includes a refrigeration system 1, a first water tank 2, a first water pump 3, multiple first heat exchangers 4, multiple second water tanks 5 and multiple second water pumps 6.

[0031] Specifically, the output end of the refrigeration system 1 is connected to the first water tank 2, and the input end is connected to the output end of the first water pump 3, the first heat exchanger 4, and one of the units to be tested 7; a first valve 8 is provided between the refrigeration system 1 and the first water pump 3; the output end of the first water tank 2 is connected to the input end of the first water pump 3; the output end of the first water pump 3 is connected to the first heat exchanger 4 and one of the units to be tested 7; a second valve 9 is provided between the first water pump 3 and the first heat exchanger 4; the first heat exchanger 4 is connected to another unit to be tested 7 and the second water tank 5; the end of the second water tank 5 away from the first heat exchanger 4 is connected to the second water pump 6; the end of the second water pump 6 away from the second water tank 5 is connected to another unit to be tested 7; and a third valve 20 is provided between the first water pump 3 and one of the units to be tested 7 and between the second water pump 6 and another unit to be tested 7. By providing multiple valves, the present device can flexibly control the flow direction and flow rate of the coolant to meet the cooling requirements of different units to be tested 7.

[0032] In this embodiment, multiple detection sensors 21 are provided between the refrigeration system 1 and one of the units to be tested 7, between the first heat exchanger 4 and another unit to be tested 7, and between the third valve 20 and the unit to be tested 7. By providing multiple detection sensors 21, the temperature, pressure, and flow rate of the coolant can be monitored in real time to ensure stable operation of the system.

[0033] Preferably, the detection sensor 21 includes at least one of a flow sensor, a temperature sensor, and a pressure sensor. The detection sensor 21 can be selected and configured based on actual needs and may also include other sensors besides those in this embodiment. The flow sensor, temperature sensor, and pressure sensor can monitor the coolant status in real time to ensure stable system operation.

[0034] Preferably, the first valve 8 comprises a manual valve or an electric valve. The first valve 8 can be set to a valve type according to actual needs.

[0035] Preferably, the second valve 9 comprises a two-way valve. For example, it can be an electric two-way valve or a manual two-way valve. The type of the second valve 9 can be set according to actual needs.

[0036] Preferably, the third valve 20 comprises a three-way valve. For example, it can be an electric three-way valve or a manual three-way valve. The type of the third valve 20 can be set according to actual needs.

[0037] In this embodiment, the unit to be tested 7 includes a liquid inlet and a liquid outlet; the liquid inlet is connected to the third valve 20 via a first switch 22, and the liquid outlet is connected to the first heat exchanger 4 or the refrigeration system 1 via a second switch 23. This allows the operator to flexibly control the flow direction and flow rate of the coolant according to the test requirements. By directly connecting the first heat exchanger 4 or the refrigeration system 1 to the unit to be tested 7, more efficient heat exchange can be achieved, ensuring that the unit to be tested 7 obtains a stable and appropriate cooling effect during the test. By precisely controlling the switches of the liquid inlet and liquid outlet, backflow or leakage of the coolant can be avoided, thereby improving the stability and reliability of the entire cooling system. By optimizing the flow direction and flow rate of the coolant, unnecessary energy consumption can be reduced, the energy efficiency ratio of the system can be improved, and operating costs can be reduced.

[0038] In one embodiment, if Figure 2 As shown, the refrigeration system 1 includes a second heat exchanger 10 , a throttle valve 11 , a condenser 12 , a first one-way valve 13 , a first compressor 14 , a second compressor 15 and a second one-way valve 16 .

[0039] Specifically, the output end of the second heat exchanger 10 is connected to the first water tank 2, and the input end is connected to the output end of the first water pump 3, the first heat exchanger 4, and one of the units under test 7. The first valve 8 is disposed between the second heat exchanger 10 and the first water pump 3. One end of the throttle valve 11 is connected to the second heat exchanger 10, and the other end is connected to one end of the condenser 12. The other end of the condenser 12 is connected to one end of the first one-way valve 13 and one end of the second one-way valve 16. One end of each of the first one-way valve 13 and the second one-way valve 16 is connected to the second heat exchanger 10 via a first two-way valve 17. The other ends of the first one-way valve 13 and the second one-way valve 16 are respectively connected to one end of the first compressor 14 and the second compressor 15. The other ends of the first compressor 14 and the second compressor 15 are connected to the heat exchanger. By providing the second heat exchanger 10, heat exchange can be performed more efficiently, cooling efficiency can be improved, and stable and appropriate cooling effect can be ensured for the unit under test 7 during the test. In addition, by providing the first heat exchanger 4 and the second heat exchanger 10, the cooling efficiency and the recycling rate of the coolant are improved, and the energy consumption is reduced.

[0040] The use of the first one-way valve 13 and the second one-way valve 16 ensures the one-way flow of the refrigerant in the system, avoids reverse flow, and improves the stability and reliability of the system.

[0041] Furthermore, the refrigeration system 1 further includes a second two-way valve 18 and a pressure controller 19; the second two-way valve 18 is provided between the first compressor 14 and the throttle valve 11; two ends of the pressure controller 19 are respectively connected to one end of the second check valve 16 and the other end of the second compressor 15. By providing the second two-way valve 18 between the first compressor 14 and the throttle valve 11, the flow rate and pressure of the refrigerant can be more precisely controlled, thereby optimizing the refrigeration effect. The use of the pressure controller 19 can monitor and adjust the pressure in the system in real time, ensure that the refrigeration system 1 operates within the optimal pressure range, enhance the stability and reliability of the system. The pressure controller 19 can provide early warning or automatic adjustment when the pressure is abnormal, prevent the system from being damaged due to too high or too low pressure, and improve the safety of the system.

[0042] Preferably, a first pressure sensor 190 is provided at the connection between the pressure controller 19 and the second check valve 16; a second pressure sensor 191 is provided at the connection between the pressure controller 19 and the second compressor 15. Through the settings of the first pressure sensor 190 and the second pressure sensor 191, the phase change and flow rate of the refrigerant can be monitored, the energy efficiency can be optimized, and the energy consumption can be reduced. Among them, the first pressure sensor 190 can be a high-pressure sensor; the second pressure sensor 191 is a low-pressure sensor.

[0043] In this embodiment, three working conditions are taken as examples, namely the first working condition, the second working condition and the third working condition. If it is necessary to simultaneously test the T1, T2, and T3 temperature-condition Packs, it can be assumed that T1 < T2 < T3. Connect the T1 test temperature-demand Pack to the liquid inlet and outlet of the first working condition, and open the corresponding valves. Connect the T2 and T3 test temperature-demand Packs to the liquid inlets and outlets of the second and third working conditions respectively, and open the corresponding valves.

[0044] Specifically, set the temperature of the first water tank 2 to T1, which is controlled by the operation of the refrigeration system 1. The cooling water of the first working condition is directly supplied by the first water tank 2, and the flow rate into Pack1 is controlled by the third valve 20 (referring to the third valve 20 connected to the first working condition). Set the temperature of the second water tank 5 to T2, and its temperature is controlled by the corresponding second valve 9 to ensure that the temperature of the second working condition is constantly T2. The pressure and flow rate of the second working condition entering Pack2 are respectively controlled by the second water pump 6 and the third valve 20 (referring to the third valve 20 connected to the second working condition). According to the control method of the second working condition, the temperature, pressure and flow rate of the third working condition are controlled to meet the test requirements of the third working condition. The control methods for multiple working conditions are类推以此类推. Through the above method, centralized, multi-working-condition and high energy efficiency can be achieved, and the requirements of different test temperatures can be satisfied simultaneously.

[0045] In summary, the liquid cooling device proposed in this utility model has the following advantages:

[0046] This embodiment controls the temperature of the first water tank by the coordinated operation of the large and small compressors (i.e., the first compressor and the second compressor) in the refrigeration system at the high efficiency point, so that the temperature meets the minimum temperature working condition requirement, the first water pump provides the required pressure, and controls the flow rate required by the first working condition (i.e., temperature control of one of the units to be tested, and the temperature control of multiple units to be tested can be expressed as multiple working conditions) through the three-way valve (third valve). This embodiment also controls the flow entering the first heat exchanger by adjusting the opening of the two-way valve (second valve), and then controls the temperature of the second water tank corresponding to the working condition, thereby achieving temperature control of the second working condition, and the second water pump provides the required pressure, and adjusts the flow rate of the second working condition through the three-way valve (third valve). By analogy, the test requirements of multiple temperature working conditions such as the third working condition and the fourth working condition can be achieved. Therefore, this device can meet the requirements of different test temperatures at the same time.

[0047] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A liquid cooling device for providing different test temperatures for multiple units to be tested, characterized in that: It includes a refrigeration system, a first water tank, a first water pump, a plurality of first heat exchangers, a plurality of second water tanks and a plurality of second water pumps; The output end of the refrigeration system is connected to the first water tank, and the input end is connected to the output end of the first water pump, the first heat exchanger and one of the units to be tested; a first valve is provided between the refrigeration system and the first water pump; The output end of the first water tank is connected to the input end of the first water pump; The output end of the first water pump is connected to the first heat exchanger and one of the units to be tested; a second valve is provided between the first water pump and the first heat exchanger; The first heat exchanger is connected to another unit to be tested and the second water tank; One end of the second water tank away from the first heat exchanger is connected to the second water pump; one end of the second water pump away from the second water tank is connected to another unit to be tested; A third valve is provided between the first water pump and one of the units to be tested, and between the second water pump and another unit to be tested.

2. The liquid cooling device according to claim 1, wherein: A plurality of detection sensors are provided between the refrigeration system and one of the units to be tested, between the first heat exchanger and another unit to be tested, and between the third valve and the unit to be tested.

3. The liquid cooling device according to claim 2, wherein: The detection sensor includes at least one of a flow sensor, a temperature sensor and a pressure sensor.

4. The liquid cooling device according to claim 1, wherein: The first valve includes a manual valve or an electric valve.

5. The liquid cooling device according to claim 1, wherein: The second valve includes a two-way valve.

6. The liquid cooling device according to claim 1, wherein: The third valve includes a three-way valve.

7. The liquid cooling device according to claim 1, wherein: The unit to be tested includes a liquid inlet and a liquid outlet; the liquid inlet is connected to the third valve via a first switch, and the liquid outlet is connected to the first heat exchanger or the refrigeration system via a second switch.

8. The liquid cooling device according to claim 1, wherein: The refrigeration system includes a second heat exchanger, a throttle valve, a condenser, a first one-way valve, a first compressor, a second compressor and a second one-way valve; The output end of the second heat exchanger is connected to the first water tank, and the input end is connected to the output end of the first water pump, the first heat exchanger and one of the units to be tested; the first valve is arranged between the second heat exchanger and the first water pump; one end of the throttle valve is connected to the second heat exchanger, and the other end is connected to one end of the condenser; the other end of the condenser is connected to one end of the first one-way valve and one end of the second one-way valve; one end of the first one-way valve and the second one-way valve are both connected to the second heat exchanger through a first two-way valve; the other ends of the first one-way valve and the second one-way valve are respectively connected to one end of the first compressor and the second compressor; the other ends of the first compressor and the second compressor are connected to the heat exchanger.

9. The liquid cooling device according to claim 8, wherein: The refrigeration system also includes a second two-way valve and a pressure controller; the second two-way valve is arranged between the first compressor and the throttle valve; the two ends of the pressure controller are respectively connected to one end of the second one-way valve and the other end of the second compressor.

10. The liquid cooling device according to claim 9, wherein: A first pressure sensor is provided at the connection between the pressure controller and the second one-way valve; and a second pressure sensor is provided at the connection between the pressure controller and the second compressor.

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