Liquid cooling test system

Abstract

The utility model discloses a liquid cooling test system. The liquid cooling test system comprises a recovery assembly, a plurality of oil pumps and a plurality of liquid cooling devices. The recovery assembly comprises an oil tank. Each oil pump is connected with the oil tank through a first pipeline. Each liquid cooling device is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected with one oil pump through a second pipeline, and the liquid outlet channel is connected with the recovery assembly through a third pipeline. According to the technical scheme of the utility model, a plurality of liquid cooling devices can be detected at the same time, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling test systems, in particular to a liquid cooling test system. Background Art

[0002] During the charging process, the new energy liquid-cooled charging gun will generate a lot of heat at the gun head. At this time, a circulation channel can be set in the charging gun, cooling oil can be added to the channel, and the liquid can be circulated through the power pump and other devices in the charging pile to bring out the heat, so as to play a heat dissipation role. During the use of the liquid-cooled charging gun, if the cooling oil in the circulation channel leaks due to poor sealing, poor high temperature resistance, poor pressure resistance, etc., it is easy to cause the cooling system to fail and cause an accident. Therefore, it is extremely important to test the sealing, high temperature resistance, and pressure resistance of the liquid-cooled charging gun. At present, the sealing, high temperature resistance, and pressure resistance tests of the liquid-cooled gun are all manually switched by the test items, which makes the test process more and consumes more man-hours; and they are all carried out at a single station. For each test of a liquid-cooled charging gun, a large current must be passed through the conductor to dissipate heat to increase the temperature of the hydraulic oil to simulate the working conditions of the liquid-cooled charging gun during long-term use, which makes the test process more and consumes more man-hours. Utility Model Content

[0003] The main purpose of the utility model is to provide a liquid cooling test system, aiming to improve the detection efficiency of the liquid cooling test system.

[0004] In order to achieve the above-mentioned purpose, the utility model proposes a liquid cooling test system, comprising:

[0005] a recovery assembly, the recovery assembly comprising an oil tank;

[0006] A plurality of oil pumps, each of the oil pumps is connected to the oil tank via a first pipeline;

[0007] A plurality of liquid cooling devices are provided, each of which is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected to an oil pump via a second pipeline, and the liquid outlet channel is connected to the recovery component via a third pipeline.

[0008] In one embodiment, the recovery component further includes a constant temperature system, one end of the constant temperature system is connected to the oil tank, and the other end of the constant temperature system is connected to the liquid cooling device via a third pipeline.

[0009] In one embodiment, it also includes a control system, which includes a host computer and a first electrically controlled valve, a second electrically controlled valve and a third electrically controlled valve connected to the host computer, the first electrically controlled valve is arranged on the first pipeline, the second electrically controlled valve is arranged on the second pipeline, and the third electrically controlled valve is arranged on the third pipeline.

[0010] In one embodiment, it also includes a blowing module, which is connected to the liquid cooling device through a fourth pipeline to blow compressed air into it. The control system also includes a fourth electrically controlled valve, which is arranged on the fourth pipeline and connected to the host computer.

[0011] In one embodiment, the recovery component further includes an oil mist recovery device, one end of the oil mist recovery device is connected to the oil tank via a pipeline, and the other end of the oil mist recovery device is connected to the liquid cooling device via a third pipeline.

[0012] In one embodiment, the liquid cooling test system also includes a first three-way connector, the second pipeline includes a first channel and a second channel, the first three-way connector includes a first end, a second end and a third end, the first end is connected to the liquid cooling device through the second channel, the second end is connected to the fourth pipeline, the third end is connected to the first channel, and the second electrically controlled valve is arranged on the first channel.

[0013] In one embodiment, a flow meter is further provided on the third pipeline, and the flow meter is connected to the host computer;

[0014] And / or the third pipeline is also provided with an electrically controlled pressure reducing valve, and the electrically controlled pressure reducing valve is connected to the host computer.

[0015] In one embodiment, the liquid cooling test system also includes a second three-way head, the third pipeline includes a third channel, a fourth channel and a fifth channel, the second three-way head has a fourth end, a fifth end and a sixth end, the fourth end is connected to the liquid cooling device through the fourth channel, the fifth end is connected to the liquid cooling device through the fifth channel, and the sixth end is connected to the recovery component through the third channel, the fourth channel and the fifth channel are respectively provided with flow meters, and the third channel is provided with a third electrically controlled valve and an electrically controlled pressure reducing valve.

[0016] In one embodiment, a liquid level sensor is further provided at the interface between the oil pump and the first pipeline.

[0017] In one embodiment, a one-way valve is further provided on the fourth pipeline.

[0018] In one embodiment, the number of the oil pump and the number of the liquid cooling device are both two.

[0019] The liquid cooling test system of the technical solution of the utility model includes a recovery component, multiple oil pumps and multiple liquid cooling devices. The recovery component includes an oil tank. Each of the oil pumps is connected to the oil tank through a first pipe. Each of the liquid cooling devices is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected to an oil pump through a second pipe, and the liquid outlet channel is connected to the recovery component through a third pipe. By providing multiple oil pumps, multiple liquid cooling devices can be connected to the recovery component at the same time, so that multiple liquid cooling devices can be tested at the same time with one liquid cooling test system, thereby improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of a liquid cooling test system provided by the utility model.

[0022] Figure 2 This is a structural schematic diagram of another embodiment of the liquid cooling test system provided by the utility model.

[0023] Description of Figure Numbers:

[0024] 100. Liquid cooling test system; 1. Recovery component; 11. Oil tank; 12. Oil mist recovery device; 13. Constant temperature system; 2. Oil pump; 3. Liquid cooling equipment; 41. First pipeline; 42. Second pipeline; 421. First channel; 422. Second channel; 43. Third pipeline; 431. Third channel; 432. Fourth channel; 433. Fifth channel; 44. Fourth pipeline; 51. First electric control valve; 52. Second electric control valve; 53. Third electric control valve; 54. Fourth electric control valve; 55. Electric control pressure reducing valve; 56. Check valve; 6. Blowing module; 7. Flow meter; 8. Liquid level sensor; 91. First three-way connector; 911. First end; 912. Second end; 913. Third end; 92. Second three-way connector; 921. Fourth end; 922. Fifth end; 923. Sixth end; 101. First station; 102. Second station.

[0025] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B; in addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0029] The existing liquid-cooled charging gun's sealing, high temperature resistance, and pressure resistance tests are all carried out at a single station. Each time a liquid-cooled charging gun is tested, a large current is passed through the conductor to dissipate heat to increase the temperature of the hydraulic oil to simulate the working conditions of the liquid-cooled charging gun when used for a long time. This makes the liquid-cooled charging gun testing take a long time and consumes a lot of electricity.

[0030] In view of this, an embodiment of the utility model proposes a liquid cooling test system 100, which has multiple oil pumps 2, and the multiple oil pumps 2 can be connected to multiple liquid cooling devices 3 respectively. In this way, multiple liquid cooling devices 3 can be tested simultaneously through multi-station testing, thereby improving the testing efficiency.

[0031] In order to better understand the above technical solution, the above technical solution is described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 2As shown, the utility model proposes a liquid cooling test system 100, including a recovery component 1, multiple oil pumps 2 and multiple liquid cooling devices 3, the recovery component 1 includes an oil tank 11; each of the oil pumps 2 is connected to the oil tank 11 through a first pipe 41; each of the liquid cooling devices 3 is provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel is connected to one of the oil pumps 2 through a second pipe 42, and the liquid outlet channel is connected to the recovery component 1 through a third pipe 43.

[0033] In the technical solution adopted in this embodiment, the liquid cooling device 3 is the device to be tested, and the liquid cooling device 3 is provided with a liquid inlet channel and a liquid outlet channel. During normal use, the liquid cooling device 3 generates a large amount of heat. The cooling oil can be sent into the liquid cooling device 3 from the liquid inlet channel to take away the heat generated during the operation of the liquid cooling device 3, and the cooling oil flows out of the liquid cooling device 3 from the liquid outlet channel, so as to achieve the cooling of the liquid cooling device 3. It can be understood that the liquid cooling device 3 can be a liquid-cooled charging gun, a liquid-cooled battery pack, or other equipment with liquid cooling function. These liquid cooling devices 3 may cause cooling oil leakage during use due to poor sealing, poor high temperature resistance, poor pressure resistance and other factors, thereby bringing safety hazards. Therefore, they need to be tested in advance to ensure their sealing, high temperature resistance and pressure resistance. The liquid cooling test system 100 includes a recovery component 1, and the recovery component 1 includes an oil tank 11. Cooling oil is stored in the oil tank 11. The liquid cooling test system 100 also includes a plurality of oil pumps 2, and each of the oil pumps 2 is connected to the oil tank 11 through a first pipe 41. At the same time, the liquid inlet channel on the liquid cooling device 3 is connected to the oil pump 2 through the second pipe 42, and the liquid outlet channel is connected to the recovery component 1 through the third pipe 43. In this way, a closed loop can be formed between the recovery component 1, the oil pump 2, and the liquid cooling device 3. The oil pump 2 sends the cooling oil into the second pipe 42 through the first pipe 41, and then into the liquid cooling device 3. After absorbing heat, the cooling oil will flow into the oil tank 11 again from the third pipe 43, thereby forming a closed loop to complete the detection of the sealing, high temperature resistance, and pressure resistance of the liquid cooling device 3. It can be understood that by setting up multiple oil pumps 2 and correspondingly setting up multiple liquid cooling devices 3, the liquid inlet channel of each liquid cooling device 3 is connected to an oil pump 2 through a second pipe 42, and the liquid outlet channel of each liquid cooling device 3 is connected to the oil tank 11 in the recovery component 1 through a third pipe 43. At the same time, each oil pump 2 is connected to the oil tank 11 through a first pipe 41. When it is necessary to test multiple liquid cooling devices 3, the cooling oil in the oil tank 11 is pressed into the correspondingly connected multiple liquid cooling devices 3 by the multiple oil pumps 2, and then flows into the oil tank 11 through the third pipe 43 connected to each liquid cooling device 3, thereby achieving the purpose of testing multiple liquid cooling devices 3 at the same time.

[0034] It can be understood that the utility model sets a plurality of oil pumps 2 and sets a plurality of liquid cooling devices 3 corresponding to the plurality of oil pumps 2. Each oil pump 2 and the liquid cooling device 3 connected to the oil pump 2, the first pipe 41 and the second pipe 42 connected to the oil pump 2, and the third pipe 43 connected to the liquid cooling device 3 constitute a test station, thereby improving the detection efficiency through multi-station detection.

[0035] Preferably, the number of the oil pump 2 and the number of the liquid cooling device 3 are both two. Figure 1-2 As shown, when the number of the oil pump 2 and the number of the liquid cooling device 3 are both two, two workstations can be set, namely the first workstation 101 and the second workstation 102. It can be understood that additional workstations can be added according to needs.

[0036] Furthermore, in an embodiment of the utility model, the recovery component 1 also includes a constant temperature system 13, one end of the constant temperature system 13 is connected to the oil tank 11, and the other end of the constant temperature system 13 is connected to the liquid cooling device 3 through a third pipe 43.

[0037] In the technical solution adopted in this embodiment, the recovery component 1 also includes a constant temperature system 13, which is arranged between the oil tank 11 and the third pipe 43. The cooling oil flowing out of the third pipe 43 will first flow into the constant temperature system 13, and then flow into the oil tank 11 from the constant temperature system 13, so as to ensure that the temperature of the cooling oil in the oil tank 11 is constant. At the same time, different oil temperatures can be set according to test requirements to test the high temperature resistance of the liquid cooling device 3; the hydraulic oil constant temperature system 13 can also reduce the energy loss in the detection process, that is, reduce the power consumption.

[0038] Furthermore, in one embodiment of the utility model, the liquid cooling test system 100 also includes a control system, which includes a host computer and a first electrically controlled valve 51, a second electrically controlled valve 52 and a third electrically controlled valve 53 connected to the host computer, wherein the first electrically controlled valve 51 is arranged on the first pipeline 41, the second electrically controlled valve 52 is arranged on the second pipeline 42, and the third electrically controlled valve 53 is arranged on the third pipeline 43.

[0039] In the technical solution adopted in this embodiment, by respectively arranging the first electrically controlled valve 51, the second electrically controlled valve 52 and the third electrically controlled valve 53 on the first pipeline 41, the second pipeline 42 and the third pipeline 43, the upper computer can directly control the closing and opening of the first electrically controlled valve 51, the second electrically controlled valve 52 and the third electrically controlled valve 53, thereby controlling the circulation of the cooling oil. Preferably, the second electrically controlled valve 52 is arranged at one end of the second pipeline 42 close to the oil pump 2. Preferably, the third electrically controlled valve 53 is arranged at one end of the third pipeline 43 close to the recovery component 1.

[0040] It is understandable that the host computer can also be connected to the constant temperature system 13, and the temperature of the constant temperature system 13 can be directly controlled by the host computer.

[0041] Furthermore, in one embodiment of the utility model, the liquid cooling test system 100 also includes a blowing module 6, which is connected to the liquid cooling device 3 through a fourth pipe 44 to blow compressed air in, and the control system also includes a fourth electric control valve 54, which is arranged on the fourth pipe 44, and the fourth electric control valve 54 is connected to the host computer.

[0042] It is understandable that after the liquid cooling device 3 is inspected, there is still cooling oil in the liquid inlet channel and the liquid outlet channel of the liquid cooling device 3. By setting the blowing module 6, the compressed air can be blown into the liquid cooling device 3 through the fourth pipe 44 and the liquid inlet channel, and then come out from the liquid outlet channel and the third channel 431, so as to blow the cooling oil in the liquid inlet channel and the liquid outlet channel into the oil tank 11, and complete the recovery of the cooling oil. When the liquid cooling device 3 is inspected, the upper computer controls the first electric control valve 51, the second electric control valve 52 and the third electric control valve 53 to open, and controls the fourth electric control valve 54 to close, and the cooling oil in the oil tank 11 flows into the oil tank 11 through the first pipe 41, the oil pump 2, the second pipe 42, the liquid cooling device 3, and the third pipe 43 in sequence, thereby forming a circulation loop. When the test of the liquid cooling device 3 is completed, the host computer controls the first electrically controlled valve 51 and the second electrically controlled valve 52 to close, and the third electrically controlled valve 53 and the fourth electrically controlled valve 54 to open, and the blowing module 6 blows the compressed air from the fourth pipe 44 into the liquid inlet channel, and then comes out from the liquid outlet channel and enters the oil tank 11 through the third pipe 43.

[0043] Optionally, the blowing module 6 is connected to a host computer, and the blowing module is controlled by the host computer.

[0044] Furthermore, in an embodiment of the utility model, the recovery component 1 also includes an oil mist recovery device 12, one end of the oil mist recovery device 12 is connected to the oil tank 11 through a pipeline, and the other end of the oil mist recovery device 12 is connected to the liquid cooling equipment 3 through a third pipeline 43.

[0045] It is understandable that during the process of compressed air cleaning the cooling oil in the liquid cooling device 3, oil mist will be generated, and the oil mist will affect the entire detection system. The oil mist can be removed by setting up an oil mist recovery device 12, so that the cooling oil without oil mist can flow back to the oil tank 11.

[0046] Furthermore, in one embodiment of the utility model, the liquid cooling test system 100 also includes a first three-way connector 91, the second pipeline 42 includes a first channel 421 and a second channel 422, the first three-way connector 91 includes a first end 911, a second end 912 and a third end 913, the first end 911 is connected to the liquid cooling device 3 through the second channel 422, the second end 912 is connected to the fourth pipeline 44, the third end 913 is connected to the first channel 421, and the second electric control valve 52 is arranged on the first channel 421.

[0047] It can be understood that, in order to facilitate the connection between the liquid cooling device 3 and the fourth pipeline 44 and the second pipeline 42, the second pipeline 42 includes a first channel 421 and a second channel 422, and the liquid cooling test system 100 also includes a first three-way head 91, the first three-way head 91 includes a first end 911, a second end 912 and a third end 913, the first end 911 is connected to the liquid inlet channel of the liquid cooling device 3 through the second channel 422, the second end 912 is connected to the fourth pipeline 44, the third end 913 is connected to the first channel 421, and the second electric control valve 52 is arranged on the first channel 421. In this way, when the liquid cooling device 3 needs to be tested, the first electric control valve 51, the second electric control valve 52, and the third electric control valve 53 are opened, and the fourth electric control valve 54 is closed, and the cooling oil flows from the oil tank 11 through the first pipeline 41, the first channel 421, the second channel 422, the liquid inlet channel, the liquid outlet channel, and the third pipeline 43 into the oil tank 11. When the detection is completed, the second electrically controlled valve 52 and the first electrically controlled valve 51 are closed, and the fourth electrically controlled valve 54 is opened, and the compressed air enters the oil tank 11 through the fourth pipeline 44, the second channel 422, the liquid inlet channel, the liquid outlet channel, and the third pipeline 43.

[0048] Further, in an embodiment of the present invention, if Figure 1-2 As shown, the third pipeline 43 is further provided with a flow meter 7, and the flow meter 7 is connected to the host computer; and / or the third pipeline 43 is further provided with an electric control pressure reducing valve 55, and the electric control pressure reducing valve 55 is connected to the host computer.

[0049] It is understandable that, in order to facilitate observation of the cooling oil flow, a flow meter 7 may be provided on the third pipeline 43, and the flow meter 7 may be provided at one end of the third pipeline 43 close to the liquid cooling device 3. The flow meter 7 is connected to the host computer, and such a setting enables the host computer to adjust the cooling oil flow rate according to the flow rate. Optionally, an electric control pressure reducing valve 55 may be provided on the third pipeline 43, and the electric control pressure reducing valve 55 is also connected to the host computer. When the pressure is too high, the electric control pressure reducing valve 55 can be controlled by the host computer to reduce the pressure.

[0050] Further, in an embodiment of the present invention, if Figure 2The liquid cooling test system 100 shown also includes a second three-way connector 92, the third pipeline 43 includes a third channel 431, a fourth channel 432 and a fifth channel 433, the second three-way connector 92 has a fourth end 921, a fifth end 922 and a sixth end 923, the fourth end 921 is connected to the liquid cooling device 3 through the fourth channel 432, the fifth end 922 is connected to the liquid cooling device 3 through the fifth channel 433, the sixth end 923 is connected to the recovery component 1 through the third channel 431, the fourth channel 432 and the fifth channel 433 are respectively provided with flow meters 7, and the third channel 431 is provided with a third electrically controlled valve 53 and an electrically controlled pressure reducing valve 55.

[0051] Understandable, such as Figure 1 As shown, the liquid cooling device 3 in the present invention can be a one-in-one-out device, that is, it has one liquid inlet channel and one liquid outlet channel. Figure 2 As shown, it can also be a one-in-two-out device, having one liquid inlet channel and two liquid outlet channels. When the liquid cooling device 3 is a one-in-two-out device, the third pipeline 43 includes a fourth channel 432, a fifth channel 433 and a sixth channel. After the cooling oil enters the liquid cooling device 3 from the liquid inlet channel, it comes out from the two liquid outlet channels, one of which is connected to the fourth channel 432, and the other is connected to the fifth channel 433. The other ends of the fourth channel 432 and the fifth channel 433 are respectively connected to the fourth end 921 and the fifth end 922 of the second three-way head 92, the sixth end 923 of the second three-way head 92 is connected to the third channel 431, and the other end of the third channel 431 is connected to the recovery component 1. At this time, the fourth channel 432 and the fifth channel 433 are respectively provided with flow meters 7 to monitor the flow rate. The third channel 431 is provided with a third electrically controlled valve 53 to control the on-off of the entire third pipeline 43. The third channel 431 is provided with an electrically controlled pressure reducing valve 55, which can reduce the pressure when the pressure on the pipeline is too high.

[0052] Furthermore, in an embodiment of the present utility model, a liquid level sensor 8 is also provided at the interface between the oil pump 2 and the first pipeline 41 .

[0053] It is understandable that the cooling oil level can be sensed by the liquid level sensor 8, and when the liquid level is abnormal, an alarm is issued or a signal is sent to the host computer to facilitate further control by the host computer.

[0054] Preferably, a liquid level sensor is provided on the oil tank 11. It is understandable that by providing the liquid level sensor 8 on the oil tank 11, the cooling oil liquid level can be sensed, and when the liquid level is abnormal, an alarm is issued or a signal is sent to the host computer, which is convenient for further control by the host computer.

[0055] Furthermore, in an embodiment of the present invention, a one-way valve 56 is also provided on the fourth pipeline 44. It can be understood that the one-way valve 56 is also called a check valve or a non-return valve, which is a valve that only allows fluid to flow in one direction without backflow. By using the one-way valve 56 in the fourth pipeline 44, the backflow of compressed air can be avoided.

Claims

1. A liquid cooling test system (100), characterized in that: include, A recovery component (1), the recovery component (1) comprising an oil tank (11); A plurality of oil pumps (2), each of the oil pumps (2) being connected to the oil tank (11) via a first pipeline (41); A plurality of liquid cooling devices (3), each of the liquid cooling devices (3) being provided with a liquid inlet channel and a liquid outlet channel, the liquid inlet channel being connected to an oil pump (2) via a second pipe (42), and the liquid outlet channel being connected to the recovery component (1) via a third pipe (43).

2. A liquid cooling test system (100) according to claim 1, characterized in that: The recovery component (1) further comprises a constant temperature system (13), one end of the constant temperature system (13) being connected to the oil tank (11), and the other end of the constant temperature system (13) being connected to the liquid cooling device (3) via a third pipe (43).

3. A liquid cooling test system (100) according to any one of claims 1 to 2, characterized in that: The invention also comprises a control system, wherein the control system comprises a host computer and a first electrically controlled valve (51), a second electrically controlled valve (52) and a third electrically controlled valve (53) connected to the host computer, wherein the first electrically controlled valve (51) is arranged on the first pipeline (41), the second electrically controlled valve (52) is arranged on the second pipeline (42), and the third electrically controlled valve (53) is arranged on the third pipeline (43).

4. A liquid cooling test system (100) according to claim 3, characterized in that: Also includes, A blowing module (6), wherein the blowing module (6) is connected to the liquid cooling device (3) via a fourth pipeline (44) so ​​as to blow compressed air into the liquid cooling device (3), and the control system further comprises a fourth electrically controlled valve (54), wherein the fourth electrically controlled valve (54) is arranged on the fourth pipeline (44), and the fourth electrically controlled valve (54) is connected to the host computer.

5. A liquid cooling test system (100) according to claim 4, characterized in that: The recovery component (1) further comprises an oil mist recovery device (12), one end of the oil mist recovery device (12) being connected to the oil tank (11) via a pipeline, and the other end of the oil mist recovery device (12) being connected to the liquid cooling device (3) via a third pipeline (43).

6. The liquid cooling test system (100) according to claim 5, characterized in that: The liquid cooling test system (100) further comprises a first three-way connector (91), the second pipeline (42) comprises a first channel (421) and a second channel (422), the first three-way connector (91) comprises a first end (911), a second end (912) and a third end (913), the first end (911) is connected to the liquid cooling device (3) via the second channel (422), the second end (912) is connected to the fourth pipeline (44), the third end (913) is connected to the first channel (421), and the second electrically controlled valve (52) is arranged on the first channel (421).

7. A liquid cooling test system (100) according to claim 6, characterized in that: The third pipeline (43) is also provided with a flow meter (7), and the flow meter (7) is connected to the host computer; And / or the third pipeline (43) is also provided with an electrically controlled pressure reducing valve (55), and the electrically controlled pressure reducing valve (55) is connected to the host computer.

8. A liquid cooling test system (100) according to claim 5, characterized in that: The liquid cooling test system (100) further comprises a second three-way connector (92); the third pipeline (43) comprises a third channel (431), a fourth channel (432) and a fifth channel (433); the second three-way connector (92) has a fourth end (921), a fifth end (922) and a sixth end (923); the fourth end (921) is connected to the liquid cooling device (3) via the fourth channel (432); the fifth end (922) is connected to the liquid cooling device (3) via the fifth channel (433); the sixth end (923) is connected to the recovery component (1) via the third channel (431); flow meters (7) are respectively provided on the fourth channel (432) and the fifth channel (433); and the third channel (431) is provided with a third electrically controlled valve (53) and an electrically controlled pressure reducing valve (55).

9. A liquid cooling test system (100) according to claim 8, characterized in that: A liquid level sensor (8) is also provided at the interface between the oil pump (2) and the first pipeline (41).

10. A liquid cooling test system (100) according to claim 9, characterized in that: The fourth pipeline (44) is also provided with a one-way valve (56).

11. A liquid cooling test system (100) as claimed in claim 10, characterized in that The number of the oil pump (2) and the number of the liquid cooling device (3) are both two.

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