Immersion liquid-cooling system

Abstract

An immersion liquid-cooling system, comprising: a temperature regulation device (100), the temperature regulation device (100) comprising a working box (10), a heat exchange box (20), a liquid inlet pipe (30), a liquid outlet pipe (40), a driving member (50) and a heat exchange apparatus (60), wherein an immersion liquid-cooling cavity (11) is formed in the working box (10), a heat exchange cavity is formed in the heat exchange box (20), the liquid inlet pipe (30) and the liquid outlet pipe (40) are arranged between and communicated with the heat exchange cavity and the immersion liquid-cooling cavity (11), the driving member (50) is suitable for driving a heat exchange medium to flow between the heat exchange cavity and the immersion liquid-cooling cavity (11), and the heat exchange apparatus (60) is suitable for adjusting the temperature of the heat exchange medium in the heat exchange cavity; and a battery support frame (7100) arranged in the immersion liquid-cooling cavity (11), the battery support frame (7100) being used for fixing a battery sample (300).

Description

Immersion liquid cooling system Technical Field

[0001] This application relates to the field of industrial testing technology, and in particular to an immersion liquid cooling system. Background Technology

[0002] During the testing of performance parameters of certain components, battery samples are placed in temperature-regulating equipment to obtain relevant performance parameters within a specified temperature range. Some components require rapid temperature changes during testing. However, heat exchangers used to achieve rapid temperature changes in temperature-regulating equipment are typically large in size due to their high power, making it difficult to implement large-scale heat exchanger arrangements in current technologies. Furthermore, battery samples are prone to shaking and displacement. Summary of the Invention

[0003] This application aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, one objective of this application is to provide an immersion liquid cooling system that can easily accommodate large-sized, high-power heat exchange devices, with a battery bracket securing the battery sample.

[0005] The immersion liquid cooling system according to the first aspect of this application includes:

[0006] A temperature regulating device includes a working chamber, a heat exchange chamber, an inlet pipe, an outlet pipe, a driving component, and a heat exchange device. The working chamber contains an immersion liquid-cooled cavity for holding a battery sample. The heat exchange chamber contains a heat exchange cavity. The inlet pipe and the outlet pipe are respectively connected between the heat exchange cavity and the immersion liquid-cooled cavity. The heat exchange cavity contains a heat exchange medium. The driving component is adapted to drive the heat exchange medium to flow between the heat exchange cavity and the immersion liquid-cooled cavity. The heat exchange device is adapted to adjust the temperature of the heat exchange medium within the heat exchange cavity.

[0007] A battery holder is disposed within the immersion liquid cooling chamber and is used to fix the battery sample.

[0008] According to the immersion liquid cooling system of the first aspect of this application, on the one hand, the arrangement of the heat exchange device is more flexible, making it easier to arrange large-size, high-power heat exchange devices to meet the needs of rapid temperature changes in the immersion liquid cooling system. On the other hand, the heat exchange medium in the heat exchange chamber regulates the temperature within the immersion liquid cooling chamber, making the temperature distribution within the immersion liquid cooling chamber more uniform, thereby improving test accuracy. Furthermore, the battery holder fixing the battery sample improves the reliability of battery sample fixation, preventing the battery sample from shaking or shifting within the immersion liquid cooling chamber, reducing the possibility of sensors or accessories falling off the battery sample, and ensuring the reliability of the test and the accuracy of the test results.

[0009] In some examples of this application, the working chamber has a liquid inlet hole formed on at least one side wall in a first direction, the liquid inlet hole connecting the liquid inlet pipe and the immersion liquid cooling chamber, the first direction being perpendicular to the vertical direction.

[0010] In some examples of this application, the working chamber has a plurality of liquid inlet holes formed on one side wall in a first direction, and the plurality of liquid inlet holes are arranged at intervals in a second direction, wherein the first direction, the second direction, and the up-down direction are perpendicular to each other.

[0011] The liquid inlet pipe includes a first liquid inlet pipe, a second liquid inlet pipe, and a third liquid inlet pipe. The first liquid inlet pipe connects the heat exchange box and the second liquid inlet pipe. The second liquid inlet pipe extends along the second direction and has a plurality of first connecting holes arranged at intervals in the second direction. The first connecting holes correspond one-to-one with the liquid inlet holes. The third liquid inlet pipe connects the first connecting holes and the liquid inlet holes.

[0012] In some examples of this application, the first inlet pipe and the second inlet pipe are connected at the middle in the second direction.

[0013] In some examples of this application, the heat exchange box is located on the lower side of the working box, and a liquid outlet hole is formed on the bottom wall of the working box, which communicates with the immersion liquid cooling cavity. The liquid outlet hole connects the liquid outlet pipe and the immersion liquid cooling cavity.

[0014] In some examples of this application, a plurality of liquid outlet holes are formed on the bottom wall of the working chamber, spaced apart in a second direction, wherein the first direction, the second direction, and the vertical direction are perpendicular to each other.

[0015] The liquid outlet pipe includes a first liquid outlet pipe, a second liquid outlet pipe, and a third liquid outlet pipe. The first liquid outlet pipe connects the heat exchange box and the second liquid outlet pipe. The second liquid outlet pipe extends along the second direction and has a plurality of second connecting holes arranged at intervals in the second direction. The second connecting holes correspond one-to-one with the liquid outlet holes. The third liquid outlet pipe connects the second connecting holes and the liquid outlet holes.

[0016] In some examples of this application, the first outlet pipe and the second outlet pipe are connected at the middle in the second direction.

[0017] In some examples of this application, the working chamber has liquid inlet holes formed on both side walls in the first direction, and there are two liquid inlet pipes, each corresponding to a liquid inlet hole on one of the two side walls of the working chamber in the first direction.

[0018] The connection points of the two inlet pipes to the heat exchange box are respectively located on both sides of the connection point of the outlet pipe to the heat exchange box in the first direction.

[0019] In some examples of this application, the heat exchange device includes a compressor, a condenser, an expansion valve, and an evaporator. The compressor, the condenser, the expansion valve, and the evaporator are sequentially connected in a loop via heat exchange pipelines. The heat exchange pipelines connecting the compressor and the evaporator pass through the heat exchange chamber.

[0020] In some examples of this application, the battery tray includes:

[0021] A fixing assembly, comprising a support assembly and a locking assembly, wherein the support assembly is fixable within the immersion liquid cooling chamber, and the locking assembly is fixable onto the support assembly, and the battery sample is adapted to be supported on the support assembly and locked by the locking assembly.

[0022] In some examples of this application, the support assembly includes two fixed rods extending along a first direction and spaced apart along a second direction. The battery sample is supported on the two fixed rods at both ends along the second direction, and the first direction, the second direction, and the vertical direction are perpendicular to each other.

[0023] Each of the two fixing rods is provided with a locking assembly for locking the two ends of the battery sample along the second direction.

[0024] In some examples of this application, the locking assembly includes two locking members spaced apart in the first direction, the two locking members on the same fixing rod being used to limit the bottom of the battery sample at two corners at both ends along the first direction.

[0025] In some examples of this application, the locking element includes a first plate and a second plate that are perpendicular to each other and connected.

[0026] The two first plates of the two locking members on the same fixed rod are located on both sides of the battery sample along the first direction and are adapted to abut against the battery sample. The two second plates of the two locking members on the same fixed rod are located on the same side of the battery sample along the second direction. The second plates of the locking members on the two fixed rods are located on both sides of the battery sample along the second direction and are adapted to abut against the battery sample.

[0027] In some examples of this application, the locking member is movable along the length of the fixing rod and can be locked and fixed to the fixing rod.

[0028] In some examples of this application, the fixing rod has a first groove extending along the length direction of the fixing rod, the locking member has a third plate, and the fixing assembly further includes:

[0029] The first fastener passes through the first groove and is connected to the third plate.

[0030] In some examples of this application, the battery tray further includes:

[0031] Two fixed slide rails are adapted to be fixed in the immersion liquid cooling cavity. The two fixed slide rails extend along the second direction and are spaced apart in the first direction. The two ends of the fixed rod along the length direction are respectively movably disposed on the two fixed slide rails along the second direction.

[0032] The positioning components are provided at both ends of each of the fixed rods along its length, for fixing the fixed rods onto the fixed slide rails.

[0033] In some examples of this application, the positioning component includes:

[0034] A positioning element having a second groove extending through the positioning element along the second direction, and a fixed slide rail passing through the second groove;

[0035] The second fastener passes through the side wall of the second slide groove and abuts against the fixed slide rail.

[0036] In some examples of this application, the positioning element has a fixing groove, one end of the fixing rod along its length is located within the fixing groove, and the positioning assembly further includes:

[0037] The third fastener is used to connect the fixing rod and the positioning element.

[0038] In some examples of this application, the immersion liquid cooling system further includes: a sealing structure installed to the working chamber, the sealing structure comprising:

[0039] A first connector, the first connector having a first channel, the first channel penetrating the first connector along a first direction, the first connector having a plurality of first stepped surfaces arranged around the first channel, the plurality of first stepped surfaces being spaced apart along the first direction;

[0040] The second connector has a second channel that extends through the second connector along the first direction. The second connector has a plurality of second stepped surfaces arranged around the second channel. The plurality of second stepped surfaces are spaced apart along the first direction. The first connector is located inside the second channel so that the plurality of second stepped surfaces are one-to-one opposite and fit with the plurality of first stepped surfaces. The first channel and the second channel are connected.

[0041] A sealing ring is provided, wherein multiple sealing rings are provided, and each sealing ring is disposed between the corresponding mating first step surface and second step surface to seal the gap between the first step surface and the second step surface.

[0042] In some examples of this application, each of the first step surfaces is provided with a sealing groove, and the sealing ring is located in the sealing groove.

[0043] In some examples of this application, along the first direction, the first connector includes a plurality of first annular connectors connected in sequence, each of the first annular connectors having a first stepped surface on the side facing the second connector, each of the first annular connectors having a through hole formed therein, the plurality of through holes being connected to form the first channel, and the diameters of the plurality of through holes being equal, and the outer diameters of the plurality of first annular connectors decreasing sequentially in the direction from the first connector to the second connector.

[0044] In some examples of this application, the first connector is detachably connected to the liquid storage cavity, and in the direction of the second connector toward the first connector, the first annular connector facing away from the second connector is detachably connected to the liquid storage cavity, and the first channel communicates with the liquid storage cavity.

[0045] In some examples of this application, along the first direction, the second connector includes a plurality of second annular connectors connected in sequence, each second annular connector having a second stepped surface on the side facing the first connector, and in the direction from the first connector to the second connector, the outer diameters of the plurality of second annular connectors decrease sequentially, and each second annular connector has a plurality of fourth connecting holes.

[0046] In some examples of this application, the immersion liquid cooling system further includes: a plurality of partitions, the immersion liquid cooling cavity extending along a second direction, the partitions being disposed within the immersion liquid cooling cavity, the normal direction of the partitions being parallel to the second direction, and the edges of the partitions being sealed to the inner wall of the immersion liquid cooling cavity, so that two adjacent partitions define an immersion sub-liquid cooling cavity within the immersion liquid cooling cavity;

[0047] Multiple first drive components are installed in the work box, and the multiple first drive components are connected to the multiple partitions one by one;

[0048] A main controller is communicatively connected to each of the first drive components, and the main controller is used to control the first drive components to drive the corresponding partition to move along the second direction;

[0049] Temperature control component, the temperature control component being installed in the working box;

[0050] A temperature controller is communicatively connected to the temperature adjustment component, and the temperature controller is used to control the temperature adjustment component to adjust the temperature of the immersion liquid cooling cavity in any region in the second direction.

[0051] In some examples of this application, the immersion liquid cooling system further includes: a visual inspection device, which is communicatively connected to the main controller. The visual inspection device is used to detect the position of the battery in the immersion liquid cooling cavity to obtain position information and send the position information to the main controller.

[0052] The main controller is also used to control the first drive component to drive the separator to move according to the position information, so that the minimum distance between the separator on both sides of the battery and the battery in the second direction is a preset distance.

[0053] In some examples of this application, the liquid level of the heat exchange medium in the immersion liquid cooling cavity is the same as the height of the partition, and the height of the partition is less than the cavity depth of the immersion liquid cooling cavity.

[0054] In some examples of this application, the inner wall of the immersion liquid cooling cavity is provided with a first guide rail and a first rack extending along the second direction;

[0055] The first driving component includes: a first slider, a first motor, a first gear, a second slider, a second motor, and a second gear. The first slider and the second slider are both slidably engaged with the first guide rail. The first motor and the second motor are both communicatively connected to the main controller. The first motor is fixed to the first slider, the first gear is fixed to the output shaft of the first motor, and the first gear meshes with the first rack. The second motor is fixed to the second slider, the second gear is fixed to the output shaft of the second motor, and the second gear meshes with the first rack.

[0056] In the second direction, the first slider and the second slider are sandwiched between the two sides of the partition.

[0057] In some examples of this application, both the first guide rail and the first rack are located above the liquid surface of the heat exchange medium.

[0058] In some examples of this application, the partition includes:

[0059] A partition body, wherein the partition body is connected to the corresponding first drive component;

[0060] A sealing sleeve is fitted around the edge of the partition body and is in a sealing fit with the inner wall of the immersion liquid cooling cavity.

[0061] In some examples of this application, the immersion liquid cooling system further includes: a temperature sensor, at least one of the temperature sensors is provided in each of the immersion sub-liquid cooling chambers, the temperature sensor is communicatively connected to the temperature controller, and the temperature sensor is used to detect the oil temperature of the heat exchange medium in the immersion sub-liquid cooling chamber.

[0062] In some examples of this application, the temperature control component includes:

[0063] Multiple refrigeration modules are evenly spaced at the bottom of the immersion liquid cooling chamber along the second direction, and each refrigeration module is communicatively connected to the temperature controller.

[0064] Multiple heating modules are evenly spaced at the bottom of the immersion liquid cooling cavity along the second direction, and each heating module is communicatively connected to the temperature controller.

[0065] In some examples of this application, the partition has at least one flow hole, the axis of which is parallel to the second direction;

[0066] The battery temperature regulation device further includes: multiple adjustment plates and multiple second drive components, wherein the multiple separators, multiple adjustment plates and multiple second drive components correspond one-to-one, the second drive components are installed on the corresponding separators, and the second drive components are connected to the corresponding adjustment plates;

[0067] The main controller is also communicatively connected to each of the second drive components. The main controller is also used to control the second drive components to drive the corresponding adjustment plate to move in the up and down direction, so as to adjust the blocking area of ​​the adjustment plate on the flow through hole.

[0068] The second direction is perpendicular to the vertical direction.

[0069] In some examples of this application, the adjusting plate has a second rack extending along the vertical direction;

[0070] The second drive assembly includes a third motor and a third gear. The third motor is connected to the partition, and the third gear is fixed to the output shaft of the third motor. The third gear meshes with the second rack.

[0071] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0072] Figure 1 is a schematic diagram of a temperature regulating device according to an embodiment of this application;

[0073] Figure 2 is a schematic diagram of the temperature control device shown in Figure 1 from another angle;

[0074] Figure 3 is a perspective view of the battery holder and the immersion liquid cooling cavity according to an embodiment of this application;

[0075] Figure 4 is an enlarged view of the fixing rod, locking component, and battery sample in Figure 3;

[0076] Figure 5 is an enlarged view of the fixed slide rail, positioning assembly and fixing rod in Figure 3;

[0077] Figure 6 is a schematic diagram of the connection between the external pipeline and the working box of the sealing structure according to some embodiments of this application;

[0078] Figure 7 is a schematic diagram of the first connector in Figure 6;

[0079] Figure 8 is a schematic diagram of the second connector in Figure 6 connected to the external pipeline;

[0080] Figure 9 is a schematic diagram of the main controller, temperature controller and working box according to an embodiment of this application;

[0081] Figure 10 is a schematic diagram of a first driving component according to an embodiment of this application;

[0082] Figure 11 is a schematic diagram of a temperature control component according to an embodiment of this application;

[0083] Figure 12 is a schematic diagram of the work box, partition, adjustment plate and temperature sensor according to an embodiment of this application;

[0084] Figure 13 is a schematic diagram of the partition, the adjusting plate, and the second drive assembly according to an embodiment of this application;

[0085] Figure 14 is a schematic diagram of the partition, adjusting plate and second drive assembly according to an embodiment of this application;

[0086] Figure 15 is a schematic diagram of the partition, the adjusting plate, and the second drive assembly according to an embodiment of this application. Detailed Implementation

[0087] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0088] The immersion liquid cooling system according to an embodiment of the first aspect of this application is described below with reference to Figures 1 and 2. The immersion liquid cooling system is a test system used to test battery sample 300.

[0089] As shown in Figures 1 and 2, according to an embodiment of the first aspect of this application, the immersion liquid cooling system includes a temperature regulating device 100 and a battery holder 7100. The temperature regulating device 100 includes: a working chamber 10, a heat exchange chamber 20, a liquid inlet pipe 30, a liquid outlet pipe 40, a drive component 50, and a heat exchange device 60.

[0090] Specifically, an immersion liquid cooling chamber 11 is formed inside the working chamber 10, which is used to place the battery sample 300. A heat exchange chamber is formed inside the heat exchange box 20. The inlet pipe 30 and the outlet pipe 40 are respectively connected between the heat exchange chamber and the immersion liquid cooling chamber 11. The heat exchange chamber is used to contain the heat exchange medium. The driving member 50 is adapted to drive the heat exchange medium to flow between the heat exchange chamber and the immersion liquid cooling chamber 11. The heat exchange device 60 is adapted to adjust the temperature of the heat exchange medium in the heat exchange chamber.

[0091] Among them, the battery sample 300 can be a battery, server, electronic component or data center, etc., and the heat exchange device 60 can be a heat pump device, electric heating device or other heat exchange device 60.

[0092] During the operation of the testing system, the battery sample 300 is placed in the immersion liquid cooling chamber 11. The heat exchange device 60 adjusts the heat exchange medium in the heat exchange chamber to the set temperature. The driving component 50 drives the heat exchange medium in the heat exchange chamber to enter the immersion liquid cooling chamber 11 through the liquid inlet pipe 30. The heat exchange medium flows through the immersion liquid cooling chamber 11 and then flows out of the heat exchange chamber through the liquid outlet pipe 40. The heat exchange medium exchanges heat with the components and the battery sample 300 within the immersion liquid cooling chamber 11, allowing the temperature inside the immersion liquid cooling chamber 11 to reach the set temperature. After the heat exchange medium flows out of the heat exchange chamber through the liquid outlet pipe 40, the heat exchange device 60 acts on the heat exchange medium within the heat exchange chamber to maintain the set temperature.

[0093] When the temperature inside the immersion liquid cooling chamber 11 needs to be changed, the heat exchange device 60 changes the temperature of the heat exchange medium inside the heat exchange chamber. The driving component 50 drives the heat exchange medium, after its temperature change, to enter the immersion liquid cooling chamber 11 from the inlet pipe 30. The heat exchange medium flows through the immersion liquid cooling chamber 11 and then flows out of the heat exchange chamber through the outlet pipe 40. The heat exchange medium exchanges heat with the components and the battery sample 300 inside the immersion liquid cooling chamber 11, causing the temperature inside the immersion liquid cooling chamber 11 to reach the set temperature for the change. Thus, the temperature inside the immersion liquid cooling chamber 11 can be adjusted.

[0094] It is understandable that achieving rapid temperature changes requires a high power output from the heat exchanger 60, which in turn necessitates a larger size for the heat exchanger 60. In this embodiment, the heat exchange chamber 20 and the heat exchanger 60 are positioned outside the working chamber 10. This minimizes the constraints on the arrangement space for the heat exchanger 60, making it easier to arrange a large-sized, high-power heat exchanger 60, thereby meeting the testing system's requirements for rapid temperature changes.

[0095] In addition, the temperature of the heat exchange medium is adjusted in the heat exchange chamber. The heat exchange medium in the heat exchange chamber enters the immersion liquid cooling chamber 11 to maintain the set temperature of the immersion liquid cooling chamber 11. On the one hand, compared with setting heat exchange components in the immersion liquid cooling chamber 11 to maintain the temperature inside the immersion liquid cooling chamber 11, the heat exchange of the heat exchange medium in the immersion liquid cooling chamber 11 is more uniform, which can make the temperature distribution inside the immersion liquid cooling chamber 11 more uniform. On the other hand, the independent heat exchange box 20 is easier to arrange, and it is easier to make the heat exchange medium storage in the heat exchange chamber meet the heat exchange medium flow requirements in the immersion liquid cooling chamber 11.

[0096] Preferably, an opening is formed on the upper side of the immersion liquid cooling cavity 11, through which the battery sample 300 is placed into the immersion liquid cooling cavity 11.

[0097] The battery bracket 7100 is located inside the immersion liquid cooling chamber 200. The battery bracket 7100 is used to fix the battery sample 300, which can improve the reliability of fixing the battery sample 300, avoid the battery sample 300 from shaking or shifting in the immersion liquid cooling chamber 200, reduce the possibility of sensors or accessories falling off the battery sample 300, and ensure the reliability of the test and the accuracy of the test results.

[0098] According to the temperature regulating device 100 of the first aspect of this application, on the one hand, the arrangement of the heat exchange device 60 is relatively flexible, making it easier to arrange a large-sized, high-power heat exchange device 60 to meet the needs of rapid temperature changes in the testing system. On the other hand, the heat exchange medium in the heat exchange chamber regulates the temperature in the immersion liquid cooling chamber 11, making the temperature distribution in the immersion liquid cooling chamber 11 more uniform, thereby improving the testing accuracy. The battery bracket 7100 fixes the battery sample 300, which can improve the reliability of the battery sample 300 fixation, avoid the battery sample 300 from shaking or shifting in the immersion liquid cooling chamber 200, reduce the possibility of sensors or accessories falling off the battery sample 300, and ensure the reliability of the test and the accuracy of the test results.

[0099] In some embodiments of this application, as shown in Figures 1 and 2, the working box 10 has a liquid inlet hole 12 formed on at least one side wall in a first direction. The liquid inlet hole 12 connects the liquid inlet pipe 30 and the immersion liquid cooling cavity 11. The first direction is perpendicular to the vertical direction.

[0100] In other words, the liquid inlet hole 12 can be formed on one side wall of the working box 10 in the first direction, or the liquid inlet hole 12 can be formed on both side walls of the working box 10 in the first direction.

[0101] During the operation of the temperature regulation device 100, the heat exchange medium in the heat exchange chamber enters the immersion liquid cooling chamber 11 through the liquid inlet pipe 30 and the liquid inlet hole 12, and the heat exchange medium can be sprayed onto the battery sample 300. In this way, the uniformity of the distribution of the heat exchange medium in the immersion liquid cooling chamber 11 can be improved, thereby further improving the uniformity of the temperature distribution in the immersion liquid cooling chamber 11.

[0102] In some embodiments of this application, as shown in Figures 1 and 2, the working chamber 10 has a plurality of liquid inlet holes 12 formed on one side wall in a first direction. The plurality of liquid inlet holes 12 are arranged at intervals in a second direction, with the first direction, the second direction, and the up-down direction being perpendicular to each other. The liquid inlet pipe 30 includes a first liquid inlet pipe 31, a second liquid inlet pipe 32, and a third liquid inlet pipe 33. The first liquid inlet pipe 31 connects the heat exchange chamber 20 and the second liquid inlet pipe 32. The second liquid inlet pipe 32 extends along the second direction and has a plurality of first connecting holes arranged at intervals in the second direction. The first connecting holes correspond one-to-one with the liquid inlet holes 12. The third liquid inlet pipe 33 connects the first connecting holes and the liquid inlet holes 12. For example, there can be two, three, four, or five liquid inlet holes 12.

[0103] During the operation of the temperature regulating device 100, the driving component 50 drives the heat exchange medium in the heat exchange chamber to enter the first liquid inlet pipe 31. The heat exchange medium flows from the first liquid inlet pipe 31 into the second liquid inlet pipe 32, and then enters the immersion liquid cooling chamber 11 from the liquid inlet hole 12 through multiple first connecting holes and the third liquid inlet pipe 33. In this way, the uniformity of the distribution of the heat exchange medium in the immersion liquid cooling chamber 11 can be further improved, thereby further improving the uniformity of the temperature distribution in the immersion liquid cooling chamber 11.

[0104] In some embodiments of this application, as shown in Figures 1 and 2, the first inlet pipe 31 and the second inlet pipe 32 are connected at the middle in the second direction. In this way, the heat exchange medium entering from the first inlet pipe 31 into the second inlet pipe 32 can flow to both sides in the second direction, thereby making the pressure at the multiple first connecting holes more uniform, further improving the uniformity of the heat exchange medium distribution within the immersion liquid cooling cavity 11, and thus further improving the uniformity of the temperature distribution within the immersion liquid cooling cavity 11.

[0105] In some embodiments of this application, as shown in Figures 1 and 2, the heat exchange box 20 is located on the lower side of the working box 10, and a liquid outlet hole 13 is formed on the bottom wall of the working box 10, which communicates with the immersion liquid cooling cavity 11. The liquid outlet hole 13 is connected between the liquid outlet pipe 40 and the immersion liquid cooling cavity 11.

[0106] During the operation of the temperature control device 100, the heat exchange medium sprayed from the side wall of the working chamber 10 flows out from the liquid outlet 13 on the bottom wall of the working chamber 10 into the heat exchange chamber after interacting with the battery sample 300. This reduces the residence time of the heat exchange medium in the immersion liquid cooling chamber 11 after heat exchange, thereby improving the effect of the heat exchange medium in the immersion liquid cooling chamber 11.

[0107] In some embodiments of this application, as shown in Figures 1 and 2, a plurality of liquid outlet holes 13 are formed on the bottom wall of the working box 10 at intervals in the second direction. The first direction, the second direction, and the up and down direction are perpendicular to each other. The liquid outlet pipe 40 includes: a first liquid outlet pipe 41, a second liquid outlet pipe 42, and a third liquid outlet pipe 43. The first liquid outlet pipe 41 is connected between the heat exchange box 20 and the second liquid outlet pipe 42. The second liquid outlet pipe 42 extends along the second direction and has a plurality of second connecting holes at intervals in the second direction. The second connecting holes correspond one-to-one with the liquid outlet holes 13. The third liquid outlet pipe 43 is connected between the second connecting holes and the liquid outlet holes 13.

[0108] During the operation of the temperature control device 100, the heat exchange medium in the immersion liquid cooling chamber 11 enters the second liquid outlet pipe 42 through multiple outlet holes 13, multiple third liquid outlet pipes 43, and the second connecting hole, and then enters the heat exchange chamber through the first liquid outlet pipe 41 from the second liquid outlet pipe 42. As a result, the heat exchange medium can flow out of the immersion liquid cooling chamber 11 more evenly.

[0109] In some embodiments of this application, as shown in FIG1, the first outlet pipe 41 and the second outlet pipe 42 are connected at the middle in the second direction. In this way, after the heat exchange medium flows into the second outlet pipe 42, the heat exchange medium can flow out from the middle of the second outlet pipe 42 to the first outlet pipe 41, thereby further improving the uniformity of the heat exchange medium outflow.

[0110] In some embodiments of this application, the working box 10 has liquid inlet holes 12 formed on both side walls in the first direction, and there are two liquid inlet pipes 30. The two liquid inlet pipes 30 correspond to the liquid inlet holes 12 on the two side walls of the working box 10 in the first direction, and the connection points of the two liquid inlet pipes 30 and the heat exchange box 20 are located on both sides of the connection point of the liquid outlet pipe 40 and the heat exchange box 20 in the first direction.

[0111] It is understandable that there is a temperature difference between the heat exchange medium flowing out of the outlet pipe 40 into the heat exchange chamber and other heat exchange media in the heat exchange chamber. The two inlet pipes 30 respectively lead the heat exchange medium on both sides of the connection between the outlet pipe 40 and the heat exchange box 20 to the immersion liquid cooling chamber 11, which can improve the temperature uniformity of the heat exchange medium in the two inlet pipes 30 and reduce the influence of the heat exchange medium flowing out of the outlet pipe 40 on the temperature of the heat exchange medium flowing into the immersion liquid cooling chamber 11.

[0112] In some embodiments of this application, as shown in Figures 1 and 2, the heat exchange device 60 includes a compressor 61, a condenser 62, an expansion valve, and an evaporator 63. The compressor 61, condenser 62, expansion valve, and evaporator 63 are sequentially connected in a loop via a heat exchange pipeline 64. The heat exchange pipeline 64, which connects the compressor 61 and the evaporator 63, passes through the heat exchange chamber.

[0113] In other words, the heat exchange device 60 is a heat pump device. During the operation of the temperature regulation device 100, the refrigerant circulates between the compressor 61, condenser 62, expansion valve and evaporator 63. The refrigerant flowing out of the evaporator 63 into the compressor 61 has a lower temperature. The heat exchange pipeline 64 between the compressor 61 and the evaporator 63 exchanges heat with the heat exchange medium in the heat exchange chamber, which can realize the temperature regulation of the heat exchange medium in the heat exchange chamber.

[0114] The battery holder 7100 according to an embodiment of this application is described below with reference to Figures 3-5.

[0115] The battery holder 7100 according to an embodiment of this application is used in an immersion liquid cooling cavity 200. The battery holder 7100 can be disposed within the immersion liquid cooling cavity 200. The battery holder 7100 can be used to fix a battery sample 300 and to test the heat generation of the battery sample 300, etc. As shown in FIG3, the battery holder 7100 according to an embodiment of this application includes a fixing component 71.

[0116] Specifically, as shown in Figures 3 and 5, the fixing component 71 includes a support component 711 and a locking component 712. The support component 711 can be fixed inside the immersion liquid cooling cavity 200, and the locking component 712 can be fixed on the support component 711. The battery sample 300 is suitable for being supported on the support component 711 and locked by the locking component 712. This securely fixes the battery sample 300 to the support component 711, thereby firmly fixing it within the limited space of the immersion liquid cooling cavity 200. This prevents the sample from shifting due to the large flow rate of liquid within the immersion liquid cooling cavity 200, ensuring that the battery sample 300 is not affected by displacement caused by flow impact, reducing the possibility of sensors or accessories falling off the battery sample 300, and ensuring the reliability of the test and the accuracy of the test results.

[0117] Furthermore, when multiple battery samples 300 are placed simultaneously within the immersion liquid cooling chamber 200, the displacement of the battery samples 300 due to the large flow of liquid within the chamber can affect the effective distance between other samples in the same test space, causing mutual interference with test results during heat generation. In this application, the battery samples 300 are securely fixed, thus preventing mutual interference between the test results of the battery samples 300.

[0118] It should be noted that under high-power charging and discharging conditions, battery sample 300 generates a large amount of heat, requiring an increase in coolant flow rate.

[0119] According to the battery holder 7100 of this application embodiment, by setting a fixing component 71, the fixing component 71 includes a support component 711 and a locking component 712. The support component 711 can be fixed in the immersion liquid cooling cavity 200, and the battery sample 300 can be supported on the support component 711. The locking component 712 can lock the battery sample 300 on the support component 711, which can improve the reliability of fixing the battery sample 300, avoid the battery sample 300 from shaking or shifting in the immersion liquid cooling cavity 200, reduce the possibility of sensors or accessories falling off the battery sample 300, and ensure the reliability of the test and the accuracy of the test results.

[0120] In some embodiments of this application, as shown in FIG3, the support assembly 711 includes two fixing rods 7111. The two fixing rods 7111 extend along a first direction and are spaced apart in a second direction. The two ends of the battery sample 300 along the second direction are respectively supported on the two fixing rods 7111. The first direction, the second direction, and the up-down direction are perpendicular to each other. This allows the battery sample 300 to be supported at both ends along the second direction, ensuring reliable support for the battery sample 300. It also reduces the volume of the support assembly 711 and the contact area with the battery sample 300, minimizing obstruction, especially at the bottom of the battery sample 300. This increases the contact area between the battery sample 300 and the coolant, enhancing heat dissipation at the bottom of the battery and resulting in a larger heat-conducting area for effective heat dissipation.

[0121] As shown in Figure 3, each of the two fixing rods 7111 is equipped with a locking component 712 for locking the two ends of the battery sample 300 along the second direction. This simplifies the structure of the locking component 712, ensures the reliability of the battery sample 300's fixation, reduces obstruction to the battery sample 300, increases the contact area between the battery sample 300 and the coolant, resulting in a larger heat conduction area for the battery sample 300 and enabling effective heat dissipation.

[0122] Furthermore, as shown in Figures 3 and 4, the locking assembly 712 includes two locking members 7121 spaced apart in the first direction. The two locking members 7121 on the same fixing rod 7111 are used to limit the bottom of the battery sample 300 at two corners at both ends along the first direction. This allows for limiting the battery sample 300 in both the first and second directions, ensuring the reliability of the battery sample 300's fixation, preventing the battery sample 300 from shaking or shifting within the immersion liquid cooling chamber 200, reducing the possibility of sensors or accessories falling off the battery sample 300, and ensuring the reliability and accuracy of the test results.

[0123] In addition, the bottom of the battery sample 300 has high structural strength and is difficult to deform. The two locking parts 7121 limit the battery sample 300 at the bottom, which can reduce the compressive deformation of the battery sample 300 by the locking parts 7121, thereby reducing the impact on the test temperature of the battery sample 300.

[0124] In some examples of this application, as shown in Figures 3 and 4, the locking member 7121 includes a first plate 71211 and a second plate 71212 that are perpendicular to each other and connected. The first plate 71211 and the second plate 71212 are located above the support member. The first plate 71211 is perpendicular to a first direction, and the second plate 71212 is perpendicular to a second direction.

[0125] Meanwhile, the two first plates 71211 of the two locking members 7121 on the same fixing rod 7111 are located on both sides of the battery sample 300 along the first direction and are adapted to abut against the battery sample 300. The two first plates 71211 of the two locking members 7121 on the same fixing rod 7111 are used to fix the battery sample 300 in the first direction and prevent the battery sample 300 from shifting in the first direction. The two second plates 71212 of the two locking members 7121 on the same fixing rod 7111 are located on the same side of the battery sample 300 along the second direction. The second plates 71212 of the locking members 7121 on the two fixing rods 7111 are located on both sides of the battery sample 300 along the second direction and are adapted to abut against the battery sample 300. The second plate 71212 of the locking member 7121 on the two fixing rods 7111 is used to fix the battery sample 300 in the second direction and prevent the battery sample 300 from shifting in the second direction. The two second plates 71212 of the two locking members 7121 on the same fixing rod 7111 can enhance the limiting effect on the battery sample 300.

[0126] In this application, the battery sample 300 is securely fixed by the aforementioned multiple locking components 7121, which prevents the battery sample 300 from shaking or shifting within the immersion liquid cooling chamber 200, reduces the possibility of sensors or accessories falling off the battery sample 300, and ensures the reliability of the test and the accuracy of the test results.

[0127] In some embodiments of this application, as shown in Figures 3 and 4, the locking member 7121 is movable along the length direction (first direction) of the fixing rod 7111 and can be locked and fixed to the fixing rod 7111. This allows adjustment of the position of the locking member 7121 along the first direction on the fixing rod 7111, making the position of the tested battery sample 300 more flexible and movable. Simultaneously, the distance between the two locking members 7121 on the same fixing rod 7111 can be adjusted, allowing the fixing assembly 71 to adapt to battery samples 300 of different sizes along the first direction. Furthermore, after adjusting its position, the locking member 7121 can be fixed to the fixing rod 7111, achieving a secure fixation of battery samples 300 of different sizes along the first direction. The battery holder 7100 of this application has wider adaptability to battery samples 300 and can accommodate battery samples 300 of more sizes.

[0128] Furthermore, as shown in Figure 4, the fixing rod 7111 has a first sliding groove 71111 extending along the length direction of the fixing rod 7111, and the locking member 7121 has a third plate 71213. The third plate 71213 is connected to the first plate 71211 and is perpendicular to the vertical direction. The third plates 71213 of the two locking members 7121 on the same fixing rod 7111 are located on the side of the two first plates 71211 that are away from each other, thereby avoiding affecting the placement of the battery sample 300.

[0129] As shown in Figure 4, the fixing assembly 71 also includes a first fastener 713, which passes through the first slide groove 71111 and is connected to the third plate 71213. The first fastener 713 may include a bolt and a nut. The bolt passes through the first slide groove 71111 and the third plate 71213 from bottom to top, and the nut is located above the third plate 71213 and connected to the bolt, thereby fixing the fixing rod 7111 and the third plate 71213, and thus fixing the locking member 7121 on the fixing rod 7111.

[0130] When it is necessary to adjust the position of the locking member 7121 on the fixing rod 7111 along the first direction, the bolt and nut can be adjusted to a loose fit. The locking member 7121 is moved, and the bolt moves in the first slide groove 71111. After the locking member 7121 is adjusted to the correct position, the bolt and nut are tightened, thereby fixing the locking member 7121.

[0131] In some embodiments of this application, as shown in Figures 3 and 5, the battery holder 7100 further includes two fixed slide rails 72 and positioning components 73. The two fixed slide rails 72 are adapted to be fixed within the immersion liquid cooling cavity 200. The two fixed slide rails 72 extend along a second direction and are spaced apart in a first direction. The two ends of the fixing rod 7111 along its length direction are respectively movably disposed on the two fixed slide rails 72 along the second direction. Each fixing rod 7111 has a positioning component 73 at both ends along its length direction for fixing the fixing rod 7111 to the fixed slide rail 72.

[0132] This allows for adjustment of the position of the fixing rod 7111 on the fixed slide rail 72 along the second direction, making the position of the tested battery sample 300 more flexible and movable. Simultaneously, the distance between the two fixing rods 7111 fixing the same battery sample 300 can be adjusted, allowing the fixing assembly 71 to accommodate battery samples 300 of different sizes along the second direction. Furthermore, after position adjustment, the fixing rod 7111 can be fixed to the fixed slide rail 72 by the positioning assembly 73, achieving secure fixation of battery samples 300 of different sizes along the second direction. The battery holder 7100 of this application has wider adaptability to battery samples 300 and can accommodate battery samples 300 of more sizes.

[0133] In some examples of this application, as shown in Figure 3, the fixing components 71 are multiple units spaced apart along the second direction. This allows multiple battery samples 300 to be fixed within the limited space of the immersion liquid cooling chamber 200, improving testing efficiency. Furthermore, the locking member 7121 is movable along the first direction on the fixing rod 7111, and the fixing rod 7111 is movable along the second direction on the fixing slide rail 72. This allows for the fixing of samples of different sizes and makes the spatial arrangement of the multiple battery samples 300 within the immersion liquid cooling chamber 200 more flexible, preventing interference between the tests of multiple battery samples 300.

[0134] In some embodiments of this application, as shown in FIG5, the positioning assembly 73 includes a positioning element 731 and a second fastener 733. A fixing rod 7111 is fixed to the positioning element 731. The positioning element 731 has a second sliding groove 732 that extends through the positioning element 731 in a second direction. The second sliding groove 732 can be disposed on the lower surface of the positioning element 731, and a fixing slide rail 72 passes through the second sliding groove 732. The cooperation between the second sliding groove 732 and the fixing slide rail 72 can improve the reliability of the fixing rod 7111 moving in the second direction on the fixing slide rail 72. In addition, the second fastener 733, for example, a screw, passes through the side wall of the second sliding groove 732 and abuts against the fixing slide rail 72. Thus, the positioning assembly 73 can be fixed on the fixing slide rail 72, thereby fixing the fixing rod 7111 on the fixing slide rail 72.

[0135] When it is necessary to adjust the position of the fixing rod 7111 on the fixing slide rail 72 along the second direction, the second fastener 733 is disengaged from the fixing slide rail 72, and the positioning member 731 can move relative to the fixing slide rail 72 along the second direction, thereby adjusting the position of the fixing rod 7111. After the fixing rod 7111 is adjusted to the correct position, the second fastener 733 is tightened so that the second fastener 733 abuts against the fixing slide rail 72, thereby fixing the positioning member 731 and then fixing the fixing rod 7111.

[0136] Optionally, there can be multiple second fasteners 733. At least one side of the fixed slide rail 72 along the first direction is provided with a second fastener 733, and multiple second fasteners 733 are provided on the same side of the fixed slide rail 72 along the first direction. The multiple second fasteners 733 are spaced apart in the second direction. This improves the reliability of the connection between the positioning member 731 and the fixed slide rail 72, thereby improving the reliability of fixing the fixing rod 7111, and further improving the reliability of fixing the battery sample 300.

[0137] Furthermore, the positioning member 731 has a fixing groove 734, which can be disposed on the upper surface of the positioning member 731. The fixing groove 734 can penetrate the positioning member 731 in a first direction. One end of the fixing rod 7111 in the length direction is located in the fixing groove 734. The positioning assembly 73 also includes a third fastener 735, which is used to connect the fixing rod 7111 and the positioning member 731. Thus, the fixing rod 7111 can be fixed to the positioning member 731.

[0138] Specifically, the third fastener 735 can be a screw, and the fixing rod 7111 has a first groove 71111. The third fastener 735 can be inserted into the first groove 71111 and connected to the positioning member 731.

[0139] According to the battery holder 7100 of the present application embodiment, it can fix battery samples 300 of different sizes in the limited space of the immersion liquid cooling cavity 200, and minimize the impact on the heat dissipation area. The present application can be applied to related application scenarios.

[0140] The configuration and operation of the immersion liquid cooling cavity 200 and the battery sample 300 according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0141] As shown in Figures 6-8, the immersion liquid cooling system according to the embodiment of this application further includes: a sealing structure 8100, a first connector 810 installed to the working box 10, the sealing structure 8100 including the first connector 810 and the second connector 820, the first connector 810 having a first channel 811, the first channel 811 penetrating the first connector 810 along a first direction (e.g., referring to the X direction shown in Figure 6), the first connector 810 having a plurality of first stepped surfaces 8121 arranged around the first channel 811, the plurality of first stepped surfaces 8121 being spaced apart along the first direction. The second connector 820 has a second channel 821, which extends through the second connector 820 along a first direction. The second connector 820 has a plurality of second stepped surfaces 8221 arranged around the second channel 821. The plurality of second stepped surfaces 8221 are spaced apart along the first direction. The first connector 810 is installed into the second channel 821 along the first direction so that the plurality of second stepped surfaces 8221 are opposite and fit against the plurality of first stepped surfaces 8121, and the first channel 811 and the second channel 821 are connected.

[0142] When the first connector 810 is installed into the second channel 821 along the first direction, the correspondence between the first step surface 8121 and the second step surface 8221 can play a guiding and positioning role, ensuring that the installation between the first connector 810 and the second connector 820 is accurate and avoiding installation deviations from affecting the sealing effect.

[0143] The first connector 810 can be installed on the working box 10, and the second connector 820 can be connected to the external pipeline 842. The first channel 811 is connected to the immersion liquid cooling cavity 200 of the working box 10, and the second channel 821 is connected to the external pipeline 842. This allows the first connector 810 and the second connector 820 to be connected between the working box 10 and the external pipeline 842, and can also seal the connection gap between the working box 10 and the external pipeline 842, preventing the heat exchange medium in the working box 10 from leaking from the connection gap between the working box 10 and the external pipeline 842 when it flows through the external pipeline 842.

[0144] The sealing structure 8100 also includes multiple sealing rings 830. The number of sealing rings 830 is equal between the first stepped surface 8121, the second stepped surface 8221, and the sealing ring 830. Each sealing ring 830 is disposed between the corresponding mating first stepped surface 8121 and second stepped surface 8221 to seal the gap between the first stepped surface 8121 and the second stepped surface 8221. When the first connector 810 is installed in the second channel 821 of the second connector 820, a stepped structure can be formed between the first connector 810 and the second connector 820, creating a multi-layer sealing barrier. Furthermore, multiple sealing rings 830 are provided between the first connector 810 and the second connector 820 to further seal the gap between them, increasing the sealing performance.

[0145] In a specific example, both the first connector 810 and the second connector 820 can be circular connectors, which simplifies the processing of the first connector 810 and the second connector 820 and avoids stress concentration in the first connector 810 and the second connector 820 themselves. The first channel 811 penetrates the first connector 810 along its axial direction, and the diameter of the first step surface 8121 decreases sequentially in the direction from the first connector 810 to the second connector 820; the second channel 821 penetrates the second connector 820 along its axial direction, and the diameter of the second step surface 8221 also decreases sequentially in the direction from the first connector 810 to the second connector 820.

[0146] When the first connector 810 is installed into the second channel 821 of the second connector 820, the first step surface 8121 of the first connector 810 closest to the working box 10 is in contact with the second step surface 8221 of the second connector 820 closest to the working box 10; the first step surface 8121 of the first connector 810 closest to the outermost pipe 842 is in contact with the second step surface 8221 of the second connector 820 closest to the outermost pipe 842.

[0147] For example, the first connector 810 and the second connector 820 can be formed by processing elastic materials such as fluororubber (FKM) or polytetrafluoroethylene (PTFE), which can ensure long-term stability and no failure in the heat exchange medium environment.

[0148] According to the sealing structure 8100 of the present application embodiment, the first connector 810 has a plurality of first stepped surfaces 8121 arranged around the first channel 811, and the second connector 820 has a plurality of second stepped surfaces 8221 arranged around the second channel 821. The first connector 810 is located inside the second channel 821, so that the plurality of second stepped surfaces 8221 are opposite to and fit the plurality of first stepped surfaces 8121 one by one. A stepped structure can be formed between the first connector 810 and the second connector 820, so that a multi-layer sealing barrier can be formed between the first connector 810 and the second connector 820. A plurality of sealing rings 830 are also provided between the first connector 810 and the second connector 820. The sealing rings 830 can further seal the gap between the first connector 810 and the second connector 820 to increase the sealing performance between the first connector 810 and the second connector 820.

[0149] According to some embodiments of this application, referring to Figures 6-7, each first step surface 8121 is provided with a sealing groove 8122, and a sealing ring 830 is located in the sealing groove 8122. The sealing ring 830 has an annular structure, and correspondingly, the sealing groove 8122 is an annular groove provided on the first step surface 8121. The sealing groove 8122 can provide installation space for the sealing ring 830 and can also provide pre-positioning for the installation of the sealing ring 830. When the first connector 810 is installed into the second channel 821 of the second connector 820, the second connector 820 can compress the sealing ring 830. The sealing groove 8122 can provide a fixed space for the sealing ring 830 when it is compressed, preventing the sealing ring 830 from shifting.

[0150] According to some embodiments of this application, referring to Figures 6-7, the sealing groove 8122 is disposed adjacent to the first channel 811, that is, the sealing ring 830 is disposed adjacent to the first channel 811. When the first connector 810 is installed into the second channel 821 of the second connector 820, if the heat exchange medium leaks, it will first leak from the stepped surface of the first connector 810 and the second connector 820 near the first channel 811. The sealing ring 830 is located at the stepped surface of the first connector 810 and the second connector 820 near the first channel 811, which can increase the seal for the heat exchange medium leakage point.

[0151] According to some embodiments of this application, referring to Figures 6-7, along a first direction, the first connector 810 includes a plurality of first annular connectors 812 connected in sequence. Each first annular connector 812 has a first stepped surface 8121 on the side facing the second connector 820. Each first annular connector 812 has a through hole formed therein. The plurality of through holes are connected to form a first channel 811, and the diameters of the plurality of through holes are all equal. In the direction from the first connector 810 to the second connector 820, the outer diameters of the plurality of first annular connectors 812 decrease sequentially. The inner diameters of the first channel 811 are equal, so that the heat exchange medium flows more smoothly in the first channel 811, and it also facilitates the processing and manufacturing of the first connector 810.

[0152] A first annular connector 812 is connected to the side of the adjacent first annular connector 812 in the first direction and close to the second connector 820. The through holes of the two adjacent first annular connectors are arranged opposite each other, and the inner walls of the adjacent first annular connectors 812 are coplanar. The outer wall of the first channel 811 is cylindrical.

[0153] For example, there are three first annular joints 812, and the three first annular joints 812 are connected in sequence to form three first stepped surfaces 8121 on the first joint 810.

[0154] According to some embodiments of this application, referring to Figures 6-7, the first connector 810 is detachably connected to the working box 10. The first connector 810 can be connected to the working box 10 by bolts. When the sealing structure 8100 is replaced later, the bolts can be removed from the first connector 810 and the working box 10 so that the sealing structure 8100 can be removed from the working box 10 for replacement.

[0155] In the direction of the second connector 820 toward the first connector 810, the first annular connector 812 facing away from the second connector 820 is detachably connected to the working box 10. The second connector 820 includes a plurality of first annular connectors 812. The first annular connector 812 facing away from the second connector 820 has the largest outer diameter, and the distance between the first stepped surface 8121 of the first annular connector 812 facing away from the second connector 820 and the working box 10 is the shortest. The area of ​​the first stepped surface 8121 of the first annular connector 812 facing away from the second connector 820 is the largest, which can increase the connection area between the first annular connector 812 and the working box 10, thereby increasing the connection strength between the first connector 810 and the working box 10.

[0156] The first channel 811 is connected to the working box 10, and the heat exchange medium in the working box 10 can be transported to the external pipeline 842 through the first channel 811.

[0157] According to some embodiments of this application, referring to Figures 6-7, the sealing structure 8100 further includes a fourth fastener. The first annular connector 812 adjacent to the working box 10 has a plurality of spaced-apart first connecting holes 8123. The working box 10 has a plurality of second connecting holes, which are opposite to the first connecting holes 8123. The number of first connecting holes 8123 and second connecting holes are equal and correspond one-to-one. The fourth fastener is inserted through the first connecting holes 8123 and the second connecting holes to detachably connect the first connector 810 to the working box 10. Furthermore, the first connecting hole 8123 is a countersunk hole, allowing the head of the fourth fastener to be recessed within the first connecting hole 8123, preventing the fourth fastener from occupying the space connecting the first connector 810 and the second connector 820, thus allowing the first stepped surface 8121 and the second stepped surface 8221 to fit tightly together.

[0158] In a specific example, the first connection hole 8123 is located on the side of the sealing groove 8122 opposite to the first channel 811. The sealing groove 8122 can seal the gap at the connection between the first connector 810 and the second connector 820, preventing the heat exchange medium in the first channel 811 and the second channel 821 from leaking through the first connection hole 8123.

[0159] For example, the fourth fastener is the aforementioned bolt. Both the first connecting hole 8123 and the second connecting hole have internal threads, and the bolt has external threads. The combination of the external and internal threads allows the bolt to be fixed into the first connecting hole 8123 and the second connecting hole.

[0160] According to some embodiments of this application, referring to Figures 6-8, the sealing structure 8100 further includes: a fifth fastener; the first annular joint 812 has a plurality of spaced third connecting holes 8124; the second joint 820 has a plurality of fourth connecting holes 8222; the fourth connecting holes 8222 are opposite to the third connecting holes 8124; and the number of the third connecting holes 8124 and the fourth connecting holes 8222 are equal and correspond one-to-one; the fifth fastener is inserted through the third connecting holes 8124 and the fourth connecting holes 8222 to detachably connect the first joint 810 and the second joint 820.

[0161] The first connector 810 is detachably connected to the work box 10 by means of a fourth fastener passing through the first connecting hole 8123 and the second connecting hole. The first connector 810 is detachably connected to the second connector 820 by means of a fifth fastener passing through the third connecting hole 8124 and the fourth connecting hole 8222. On the first annular connector 812 near the work box 10, the third connecting hole 8124 and the first connecting hole 8123 are arranged alternately around the circumference of the first channel 811. The fourth fastener fixing the first connector 810 can be arranged around the circumference of the first channel 811 on the first annular connector 812. At the same time, the fifth fastener fixing the first connector 810 and the second connector 820 can be arranged around the circumference of the first channel 811 on the first annular connector 812. This can ensure the tightness of the connection between the first annular connector 812 and the work box 10, and also increase the tightness of the connection between the first connector 810 and the second connector 820.

[0162] In a specific example, the first connection hole 8123 is located on the side of the sealing groove 8122 opposite to the first channel 811. The sealing groove 8122 can seal the gap at the connection between the first connector 810 and the second connector 820, preventing the heat exchange medium in the first channel 811 and the second channel 821 from leaking through the first connection hole 8123.

[0163] For example, the fourth fastener is the aforementioned bolt. Both the third connecting hole 8124 and the fourth connecting hole 8222 have internal threads, and the bolt has external threads. The combination of the external and internal threads allows the bolt to be fixed into the third connecting hole 8124 and the fourth connecting hole 8222.

[0164] According to some embodiments of this application, referring to Figures 6-8, along the first direction, the second connector 820 includes a plurality of second annular connectors 822 connected in sequence. Each second annular connector 822 has a second stepped surface 8221 on the side facing the first connector 810. In the direction from the first connector 810 to the second connector 820, the outer diameter of the plurality of second annular connectors 822 decreases in sequence. Each second annular connector 822 has a plurality of fourth connecting holes 8222, which can reduce the volume of the second connector 820 and thus reduce the space occupied by the second connector 820.

[0165] Each second annular joint 822 has multiple fourth connecting holes 8222, and the fourth connecting holes 8222 penetrate the corresponding second annular joint 822 along the first direction. Using a fifth fastener inserted through the third connecting hole 8124 and the fourth connecting hole 8222 increases the connection strength between the first joint 810 and the second joint 820. In the direction from the first joint 810 to the second joint 820, the outer diameters of the multiple second annular joints 822 decrease sequentially. In the first direction, this also makes the size of the first connecting hole 8123 shorter, facilitating the insertion and fixing of the fifth fastener.

[0166] For example, there are three second annular joints 822, which are connected in sequence to form three second stepped surfaces 8221 on the second joint 820.

[0167] According to some embodiments of this application, referring to Figures 6-8, the first connector 810 is an integrally formed part, which not only simplifies the processing of the first connector 810, but also increases the structural strength of the first connector 810 itself; it can also avoid the risk of heat exchange medium leakage on the first connector 810 caused by the connection between multiple first annular connectors 812.

[0168] The second connector 820 is a one-piece molded part, which not only simplifies the processing of the second connector 820, but also increases the structural strength of the second connector 820 itself; it also avoids the risk of heat exchange medium leakage caused by the connection between multiple second annular connectors 822.

[0169] According to the immersion liquid cooling system of the present application embodiment, by setting the above-mentioned sealing structure 8100, a stepped structure is formed between the first joint 810 and the second joint 820, so that a multi-layer sealing barrier can be formed between the first joint 810 and the second joint 820. In addition, a plurality of sealing rings 830 are provided between the first joint 810 and the second joint 820. The sealing rings 830 can further seal the gap between the first joint 810 and the second joint 820 to increase the sealing performance between the first joint 810 and the second joint 820.

[0170] According to some embodiments of this application, the immersion liquid cooling system may further include: a plurality of partitions 122, a plurality of first drive assemblies 137, a main controller 14, a temperature control assembly 15, and a temperature controller 16. The working chamber 10 has an immersion liquid cooling cavity 11 suitable for containing the heat exchange medium. The immersion liquid cooling cavity 11 extends along a second direction. The partitions 122 are disposed within the immersion liquid cooling cavity 11. The normal direction of the partitions 122 is parallel to the second direction, and the edges of the partitions 122 are sealed to the inner wall of the immersion liquid cooling cavity 11, so that adjacent partitions 122 are confined within the immersion liquid cooling cavity 11. An immersion liquid cooling chamber 1111 is defined. A first drive assembly 137 is installed in the working box 10. Multiple first drive assemblies 137 are connected to multiple partitions 122 in a one-to-one correspondence. A main controller 14 is communicatively connected to each first drive assembly 137. The main controller 14 is used to control the first drive assembly 137 to drive its corresponding partition 122 to move along the second direction. A temperature control assembly 15 is installed in the working box 10. A temperature controller 16 is communicatively connected to the temperature control assembly 15. The temperature controller 16 is used to control the temperature control assembly 15 to adjust the temperature of any area of ​​the immersion liquid cooling chamber 11 in the second direction.

[0171] Specifically, the immersion liquid cooling system can be used in battery testing equipment, battery thermal management system R&D equipment, laboratory battery temperature control equipment, etc. The immersion liquid cooling cavity 11 of the immersion liquid cooling system can accommodate the battery and the heat-conducting heat exchange medium. By heating and cooling the heat exchange medium, the temperature of the battery sample 300 can be changed, so as to facilitate the testing, experimentation and verification of the battery sample 300.

[0172] The working chamber 10 of the immersion liquid cooling system has an immersion liquid cooling cavity 11, which extends along a second direction, which can be the left-right direction in Figure 9. The immersion liquid cooling cavity 11 is suitable for containing a heat exchange medium with good thermal conductivity and insulation properties. The battery sample 300 can be immersed in the heat exchange medium. After the heat exchange medium is heated and cooled, the temperature of the battery sample 300 can be quickly adjusted. In addition, when the battery sample 300 leaks current, the heat exchange medium can also achieve insulation between the working chamber 10 and the battery sample 300, preventing the working chamber 10 from leaking current and improving the safety of the immersion liquid cooling system.

[0173] The partition 122 can be a flat plate structure. The normal direction of the partition 122 is parallel to the second direction. The normal direction of the partition 122 is the thickness direction of the partition 122. Multiple partitions 122 can be arranged parallel to each other in the immersion liquid cooling cavity 11. At the same time, the edge of the partition 122 is sealed to the inner wall of the immersion liquid cooling cavity 11 so that two adjacent partitions 122 define an immersion sub-liquid cooling cavity 1111 in the immersion liquid cooling cavity 11. The volume of the immersion sub-liquid cooling cavity 1111 is smaller than the volume of the immersion liquid cooling cavity 11. The partition 122 can prevent the heat exchange medium on both sides from flowing and exchanging heat with each other, so as to facilitate independent temperature adjustment of the heat exchange medium in the immersion sub-liquid cooling cavity 1111 and avoid mutual temperature influence between adjacent immersion sub-liquid cooling cavities 1111. This is beneficial to improving the stability, accuracy and precision of the test.

[0174] Multiple first drive components 137 are connected one-to-one with multiple partitions 122. Each first drive component 137 is installed in the working box 10. The first drive component 137 can drive the partition 122 connected to it to move relative to the working box 10 in the second direction. The main controller 14 is communicatively connected to each first drive component 137. The main controller 14 is used to control the first drive component 137 to drive the corresponding partition 122 to move in the second direction. That is, the main controller 14 can drive the corresponding partitions 122 to move through multiple first drive components 137, so as to change the distance between two adjacent partitions 122 in the second direction, that is, change the size of the immersion sub-liquid cooling cavity 1111 in the second direction, so that the immersion sub-liquid cooling cavity can be made to move. The dimensions of the submerged liquid cooling cavity 1111 and the battery sample 300 within it are adapted to each other in the second direction. The dimensions of the submerged liquid cooling cavity 1111 in the second direction are slightly larger than those of the battery sample 300 in the second direction. For example, in the second direction, the dimensions of the submerged liquid cooling cavity 1111 are D1 and the dimensions of the battery sample 300 are D2, with 10mm ≤ D1 - D2 ≤ 40mm. This reduces the volume of the submerged liquid cooling cavity 1111 and the amount of oil in the heat exchange medium within it. When adjusting the battery temperature, the submerged liquid cooling system needs to provide less heat generation and cooling capacity to the heat exchange medium within the submerged liquid cooling cavity 1111, which is beneficial for quickly adjusting the temperature of the battery sample 300 and reducing the energy consumption required for temperature adjustment.

[0175] Temperature control component 15 is installed in working chamber 10. Temperature control component 15 can perform cooling and heating. Temperature controller 16 is communicatively connected to temperature control component 15. Temperature controller 16 is used to control temperature control component 15 to adjust the temperature of any area of ​​immersion liquid cooling cavity 11 in the second direction. When adjusting the temperature of battery sample 300, temperature controller 16 can control temperature control component 15 to adjust the temperature of the inner wall of immersion liquid cooling cavity 11 in the area corresponding to immersion sub-liquid cooling cavity 1111 where battery sample 300 is located. The temperature of the inner wall of immersion liquid cooling cavity 11 in this area can change the temperature of heat exchange medium in immersion sub-liquid cooling cavity 1111, thereby adjusting the temperature of battery through heat exchange medium.

[0176] It should be noted that the number of separators 122 and first drive components 137 can be greater than two, so that the immersion liquid cooling system can independently regulate the temperature of multiple batteries simultaneously. For example, the number of separators 122 and first drive components 137 can both be four. The four separators 122 can separate at least three immersion sub-liquid cooling chambers 1111 in the immersion liquid cooling chamber 11. Each immersion sub-liquid cooling chamber 1111 can hold one battery sample 300. The temperature controller 16 can independently regulate the temperature of the heat exchange medium in the three immersion sub-liquid cooling chambers 1111 through the temperature regulating component 15, so as to meet the temperature requirements of the battery sample 300 in the immersion sub-liquid cooling chamber 1111 and improve the utilization efficiency of the immersion liquid cooling system.

[0177] According to the immersion liquid cooling system of this application embodiment, the main controller 14 can control the first drive component 137 to drive the corresponding partition 122 to move along the second direction, so as to adjust the size of the immersion sub-liquid cooling cavity 1111. The temperature controller 16 can control the temperature adjustment component 15 to adjust the temperature of any area of ​​the immersion liquid cooling cavity 11 in the second direction, so as to independently adjust the temperature of the heat exchange medium in each immersion sub-liquid cooling cavity 1111. The immersion liquid cooling system can be adapted to battery samples 300 of different sizes, realize rapid and low-energy temperature adjustment of battery samples 300, and has good product competitiveness.

[0178] In some embodiments of this application, referring to FIG9, the immersion liquid cooling system further includes: a visual inspection device 171, which is communicatively connected to the main controller 14. The visual inspection device 171 is used to detect the position of the battery sample 300 in the immersion liquid cooling cavity 11 to obtain position information, and sends the position information to the main controller 14. The main controller 14 is also used to control the first drive assembly 137 to drive the partition 122 to move according to the position information, so that the minimum distance between the partition 122 on both sides of the battery sample 300 and the battery sample 300 in the second direction is a preset distance.

[0179] Specifically, the visual inspection device 171 includes a camera 1711, which can acquire images from the outside of the immersion liquid cooling cavity 11 towards the slot opening. The visual inspection device 171 can obtain the position of the battery sample 300 within the immersion liquid cooling cavity 11 from the acquired images using an image recognition algorithm. The visual inspection device 171 sends the position information to the main controller 14. The main controller 14 can control the first driving component 137 to drive the corresponding separator 122 to move according to the position information, so that the separators 122 on both sides of the battery sample 300 are aligned with the battery sample 300 in the second direction. The minimum spacing is a preset distance, which can be 5mm to 20mm. This allows the position of the partitions 122 on both sides of the battery sample 300 to be automatically adjusted according to the position of the battery sample 300 in the immersion liquid cooling cavity 11. This makes the size of the immersion sub-liquid cooling cavity 1111 formed by the partitions 122 on both sides of the battery sample 300 slightly larger than the size of the battery sample 300. This reduces the amount of oil in the heat exchange medium in the immersion sub-liquid cooling cavity 1111 and allows the battery sample 300 to exchange heat with the heat exchange medium from all sides. This facilitates rapid temperature adjustment of the battery sample 300 and reduces the energy consumption required for temperature adjustment.

[0180] Optionally, the visual inspection device 171 has multiple cameras 1711, which are arranged at intervals along the second direction on the work box 10. Each camera 1711 acquires images of different areas of the immersion liquid cooling cavity 11 that can be detected. Alternatively, multiple cameras can jointly acquire images of the immersion liquid cooling cavity 11. The visual inspection device 171 calculates and verifies the acquired images to obtain position information, thereby improving the detection accuracy of the battery sample 300 position.

[0181] It should be noted that before the immersion liquid cooling system is used, in the second direction, multiple partitions 122 can be evenly distributed at the left and right ends of the immersion liquid cooling cavity 11. When the immersion liquid cooling system is used, multiple battery samples 300 can be placed into the immersion liquid cooling cavity 11 in sequence. After each battery sample 300 is placed in, the main controller 14 obtains the position information of the battery sample 300 through the vision detection device 171, and then controls the first drive assembly 137 to drive the partitions 122 to move so that each battery sample 300 is located in the immersion sub-liquid cooling cavity 1111 that is adapted to its size.

[0182] For example, there are three battery samples 300 that need to be tested for temperature regulation, namely the first battery, the second battery and the third battery. There are four separators 122 and four first drive components 137. The four separators 122 are the first separator, the second separator, the third separator and the fourth separator, and the four first drive components 137 are drive component one, drive component two, drive component three and drive component four.

[0183] Before use, the first, second, third and fourth partitions of the immersion liquid cooling system are arranged from left to right, with the first and second partitions located on the left side of the immersion liquid cooling cavity 11 and the third and fourth partitions located on the right side of the immersion liquid cooling cavity 11.

[0184] The following steps are included when using an immersion liquid cooling system:

[0185] In step S1, the first battery is placed in the middle of the immersion liquid cooling cavity 11 (i.e., between the second and third partitions). The main controller 14 obtains the position information of the first battery through the vision detection device 171, and controls the second drive assembly to drive the second partition to move to the right to a position separated from the left end of the first battery by a preset distance, and controls the third drive assembly to drive the third partition to move to the left to a position separated from the right end of the first battery by a preset distance. At this time, the first battery is located in the first immersion liquid cooling cavity formed between the second and third partitions.

[0186] In step S2, the second battery is placed into the immersion liquid cooling cavity 11 on the right side of the third partition. The main controller 14 obtains the position information of the second battery through the vision detection device 171 and controls the drive assembly 4 to drive the fourth partition to move to the left to a position that is a preset distance away from the right end of the second battery. At this time, the second battery is located in the second immersion liquid cooling cavity formed between the third partition and the fourth partition.

[0187] In step S3, the third battery is placed into the immersion liquid cooling cavity 11 on the left side of the second partition. The main controller 14 obtains the position information of the third battery through the vision detection device 171 and controls the drive assembly to drive the first partition to move to the right to a position that is a preset distance away from the left end of the second battery. At this time, the third battery is located in the third immersion liquid cooling cavity formed between the first partition and the second partition.

[0188] In step S4, the temperature controller 16 controls the temperature adjustment component 15 to adjust the temperature of the corresponding areas of the immersion liquid cooling chamber 11 and the first immersion sub-liquid cooling chamber, the second immersion sub-liquid cooling chamber, and the third immersion sub-liquid cooling chamber, so as to achieve independent adjustment of the temperature of the first battery, the second battery, and the third battery.

[0189] It should be noted that the separator 122 can push the battery sample 300 to move in the second direction to adjust the position of the battery sample 300.

[0190] For example, in step S2, if the minimum distance between the second battery and the third separator is greater than a preset distance after the second battery is placed in the immersion liquid cooling chamber 11, the main controller 14 can first drive the fourth separator to move to the left through the drive component four and push the second battery to the left until the minimum distance between the second battery and the third separator is equal to the preset distance. Then, the main controller 14 can drive the fourth separator to move to the right through the drive component four to a position that is a preset distance away from the right end of the second battery.

[0191] Therefore, the immersion liquid cooling system can automatically adjust the position of the separator 122 according to the position of the battery. The immersion liquid cooling system has a good level of automation and intelligence, making the product more competitive in the battery testing equipment market.

[0192] In some embodiments of this application, the liquid level of the heat exchange medium in the immersion liquid cooling cavity 11 is the same as the height of the partition 122, and the height of the partition 122 is less than the cavity depth of the immersion liquid cooling cavity 11.

[0193] Specifically, the liquid level of the heat exchange medium in the immersion liquid cooling cavity 11 can be the same as the height of the partition 122. If the two partitions 122 are close to each other, the volume of the immersion sub-liquid cooling cavity 1111 between the two close partitions 122 becomes smaller, and the heat exchange medium in the immersion sub-liquid cooling cavity 1111 can overflow from above the partition 122. At the same time, the height of the partition 122 is less than the cavity depth of the immersion liquid cooling cavity 11, that is, the heat exchange medium overflowing from above the partition 122 can enter the immersion sub-liquid cooling cavities 1111 on both sides where the volume increases. The heat exchange medium will not spill out of the immersion liquid cooling cavity 11, and the liquid level of each immersion sub-liquid cooling cavity 1111 can be kept consistent to facilitate the use of the immersion liquid cooling system.

[0194] In some other embodiments of this application, the liquid level of the heat exchange medium in the immersion liquid cooling cavity 11 is less than or equal to the height of the partition 122. The partition 122 is provided with an openable and closable flow hole 121 below the liquid level of the heat exchange medium. When the partition 122 is stationary, the flow hole 121 is closed to prevent the heat exchange medium in different immersion sub-liquid cooling cavities 1111 from flowing and exchanging heat through the flow hole 121, thus ensuring the temperature independence of each immersion sub-liquid cooling cavity 1111. When the partition 122 moves, the flow hole 121 is opened to reduce the moving resistance of the partition 122. At the same time, the flow hole 121 makes the immersion sub-liquid cooling cavities 1111 on both sides of the partition 122 form a communicating vessel, so that the liquid level in the immersion sub-liquid cooling cavities 1111 on both sides of the partition 122 remains unchanged before and after the partition 122 moves.

[0195] In some embodiments of this application, referring to Figures 9 and 10, the inner wall of the immersion liquid cooling cavity 11 is provided with a first guide rail 1112 and a first rack 1113 extending along a second direction. The first drive assembly 137 includes: a first slider 131, a first motor 132, a first gear 133, a second slider 134, a second motor 135, and a second gear 136. The first slider 131 and the second slider 134 are both slidably engaged with the first guide rail 1112, and the first motor 132 and the second motor 135... All are connected to the main controller 14. The first motor 132 is fixed to the first slider 131, the first gear 133 is fixed to the output shaft of the first motor 132, and the first gear 133 meshes with the first rack 1113. The second motor 135 is fixed to the second slider 134, the second gear 136 is fixed to the output shaft of the second motor 135, and the second gear 136 meshes with the first rack 1113. In the second direction, the first slider 131 and the second slider 134 are sandwiched on both sides of the partition 122.

[0196] Specifically, the first slider 131 and the first guide rail 1112 are guided and engaged in the second direction. The first motor 132 on the first slider 131 can drive the first gear 133 to rotate. The first gear 133 moves along the second direction under the action of the first rack 1113, thereby causing the first gear 133 to drive the first motor 132 and the first slider 131 to move synchronously along the second direction.

[0197] The second slider 134 is guided and engaged with the first guide rail 1112 in the second direction. The second motor 135 on the second slider 134 can drive the second gear 136 to rotate. The second gear 136 moves along the second direction under the action of the first rack 1113, thereby driving the second motor 135 and the second slider 134 to move synchronously along the second direction.

[0198] The first slider 131 and the second slider 134 are sandwiched on both sides of the partition 122. The first motor 132 and the second motor 135 are both connected to the main controller 14. The main controller 14 can control the output shafts of the first motor 132 and the second motor 135 to rotate synchronously, so that the first slider 131 and the second slider 134 move to the left or right synchronously, thereby driving the partition 122 to move left and right in the second direction. The first motor 132 and the second motor 135 can form a dual-motor drive to ensure that the first drive assembly 137 has sufficient driving force to overcome the resistance of the heat exchange medium and drive the partition 122 to move.

[0199] It should be noted that the main controller 14 can also control one of the first motor 132 and the second motor 135 to work independently, thereby adjusting the spacing between the first slider 131 and the second slider 134 in the second direction, so as to facilitate the disassembly and assembly of the partition 122, or to replace the partition 122 with a different thickness. For example, when it is necessary to merge the immersion sub-liquid cooling chamber 1111, the spacing between the first slider 131 and the second slider 134 in the second direction can be increased, and then the partition 122 can be manually pulled out.

[0200] In some embodiments of this application, the inner wall of the immersion liquid cooling cavity 11 has a front sidewall and a rear sidewall opposite each other in a first direction (the front-rear direction in FIG. 9). The first guide rail 1112 and the first rack 1113 are disposed on the rear sidewall, and the front sidewall is provided with a third guide rail and a third rack extending in a second direction. The first drive assembly 137 further includes: a fourth slider, a fourth motor, a fourth gear, a fifth slider, a fifth motor, and a fifth gear. The fourth slider and the fifth slider are both slidably engaged with the third guide rail. The fourth motor and the fifth motor are both communicatively connected to the main controller 14. The fourth motor is fixed to the fourth slider, the fourth gear is fixed to the output shaft of the fourth motor, and the fourth gear meshes with the third rack. The fifth motor is fixed to the fifth slider, and the fifth gear... Fixed to the output shaft of the fifth motor, the fifth gear meshes with the third rack. In the second direction, the fourth and fifth sliders are clamped on both sides of the partition 122. The first direction is perpendicular to the second direction. Thus, the first drive assembly 137 clamps the partition 122 on the rear side of the partition 122 through the first slider 131 and the second slider 134, and clamps the partition 122 on the front side of the partition 122 through the fourth and fifth sliders, preventing the partition 122 from tilting. At the same time, the first drive assembly 137 can drive the partition 122 to move through four motors, thereby further improving the power of the first drive assembly 137, reducing the load on each motor, and increasing the service life of the first drive assembly 137.

[0201] In other embodiments not shown in the figures of this application, the first drive assembly 137 may also be configured as a first telescopic rod, which may be electrically or hydraulically driven to extend and retract in a second direction to drive the partition 122 to move.

[0202] In some embodiments of this application, the first guide rail 1112 and the first rack 1113 are both located above the liquid surface of the heat exchange medium to reduce the influence of the structure on the first guide rail 1112 and the first rack 1113 on the partition 122, so that the inner wall position of the submerged liquid cooling cavity 11 opposite to the partition 122 is flat, reducing the difficulty of sealing the edge of the partition 122 with the inner wall of the submerged liquid cooling cavity 11, and ensuring the reliability of the sealing fit between the edge of the partition 122 and the inner wall of the submerged liquid cooling cavity 11.

[0203] In some embodiments of this application, the partition 122 includes a partition body and a sealing sleeve. The partition body is connected to the corresponding first drive assembly 137, and the sealing sleeve is fitted onto the edge of the partition body and is sealed to the inner wall of the immersion liquid cooling cavity 11.

[0204] Specifically, the baffle body can be a plate-shaped structure with the same cross-sectional shape as the immersion liquid cooling cavity 11 perpendicular to the second direction. The baffle body can be an insulating material to reduce heat exchange between the heat exchange medium on both sides. The sealing sleeve can be a rubber material and can be fitted and fixed to the edge of the baffle body facing the inner wall of the immersion liquid cooling cavity 11. The inner wall of the immersion liquid cooling cavity 11 has two side walls opposite in the third direction and a bottom wall opposite to the groove of the immersion liquid cooling cavity 11. The sealing sleeve can fill the gap between the baffle body and the bottom wall and two side walls of the immersion liquid cooling cavity 11, thereby ensuring the reliability of the sealing fit between the baffle 122 and the inner wall of the immersion liquid cooling cavity 11.

[0205] In some embodiments of this application, as shown in FIG12, the immersion liquid cooling system further includes a temperature sensor 172. At least one temperature sensor 172 is provided in each immersion sub-liquid cooling cavity 1111. The temperature sensor 172 is communicatively connected to the temperature controller 16. The temperature sensor 172 is used to detect the oil temperature of the heat exchange medium in the immersion sub-liquid cooling cavity 1111.

[0206] Specifically, each partition 122 and / or each first drive assembly 137 is equipped with a temperature sensor 172, or, the inner wall of the immersion liquid cooling cavity 11 is equipped with a temperature sensor 172 at a second preset distance in the second direction. The second preset distance may be less than the thickness of the partition 122 in the second direction, so as to ensure that each immersion sub-liquid cooling cavity 1111 is provided with at least one temperature sensor 172.

[0207] The temperature controller 16 can obtain the oil temperature of the heat exchange medium in the immersion sub-liquid cooling cavity 1111 through the temperature sensor 172, so that the temperature controller 16 can accurately control the cooling capacity and heating capacity of the temperature regulating component 15, so that the oil temperature of the heat exchange medium in the immersion sub-liquid cooling cavity 1111 is consistent with the preset temperature, thereby improving the temperature regulation accuracy of the temperature controller 16.

[0208] In some embodiments of this application, referring to FIG11, the temperature control assembly 15 includes: a plurality of cooling modules 151 and a plurality of heating modules 152. The plurality of cooling modules 151 are evenly spaced along a second direction at the bottom of the immersion liquid cooling cavity 11, and each cooling module 151 is communicatively connected to a temperature controller 16. The plurality of heating modules 152 are evenly spaced along a second direction at the bottom of the immersion liquid cooling cavity 11, and each heating module 152 is communicatively connected to a temperature controller 16.

[0209] Specifically, the refrigeration module 151 can be a small evaporator or a semiconductor refrigeration device. During refrigeration, the refrigeration module 151 can lower the temperature at its corresponding location in the immersion liquid cooling cavity 11, thereby reducing the temperature of the heat exchange medium within the immersion liquid cooling cavity 11. The temperature controller 16 can independently control the refrigeration power of each refrigeration module 151, enabling the temperature control component 15 to adjust the temperature of any region of the immersion liquid cooling cavity 11 in the second direction. Simultaneously, the refrigeration module 151 installed at the bottom of the immersion liquid cooling cavity 11 can fully exchange heat with the heat exchange medium within the immersion liquid cooling cavity 11. Optionally, the refrigeration module 151 can be installed on the outer wall opposite to the bottom wall of the immersion liquid cooling cavity 11 to facilitate installation and maintenance.

[0210] The heating module 152 can be a small condenser or a PTC heating element. When heating, the heating module 152 can raise the temperature of its corresponding position in the immersion liquid cooling cavity 11, thereby increasing the temperature of the heat exchange medium in the immersion liquid cooling cavity 11. The temperature controller 16 can independently control the heating power of each heating module 152, so as to realize the control of the temperature regulating component 15 to adjust the temperature of any area of ​​the immersion liquid cooling cavity 11 in the second direction. At the same time, the heating module 152 installed at the bottom of the immersion liquid cooling cavity 11 can fully exchange heat with the heat exchange medium in the immersion liquid cooling cavity 11. Optionally, the heating module 152 can be installed on the outer wall opposite to the bottom wall of the immersion liquid cooling cavity 11 to facilitate the installation and maintenance of the heating module 152.

[0211] Referring to FIG11, at the bottom of the immersion liquid cooling cavity 11, multiple cooling modules 151 and multiple heating modules 152 are arranged in rows and columns. In the second direction (left-right direction), each row has multiple cooling modules 151 or heating modules 152 arranged at equal intervals. In the first direction (front-back direction), each column has cooling modules 151 and heating modules 152 arranged alternately, so that the temperature control component 15 can accurately control the temperature of any area of ​​the immersion liquid cooling cavity 11 in the second direction and realize independent temperature control of different temperature zones.

[0212] In some embodiments of this application, referring to Figures 12-15, the partition 122 has at least one flow hole 121, the axis of which is parallel to the second direction. The immersion liquid cooling system further includes: multiple adjusting plates 18 and multiple second drive components 19. The multiple partitions 122, multiple adjusting plates 18, and multiple second drive components 19 correspond one-to-one. The second drive components 19 are installed on the corresponding partitions 122 and connected to the corresponding adjusting plates 18. The main controller 14 is also communicatively connected to each second drive component 19. The main controller 14 is also used to control the second drive component 19 to drive its corresponding adjusting plate 18 to move in the vertical direction to adjust the blocking area of ​​the adjusting plate 18 on the flow hole 121, wherein the vertical direction is perpendicular to the second direction.

[0213] Specifically, the flow through hole 121 can penetrate the partition 122 in the thickness direction. The heat exchange medium on both sides of the partition 122 can flow to each other through the flow through hole 121 to balance the liquid level of the heat exchange medium on both sides of the partition 122. It can also enable the heat exchange medium on both sides of the partition 122 to exchange heat quickly. The main controller 14 can calculate the real-time temperature difference between adjacent submerged liquid cooling chambers 1111 through the temperature controller 16 and automatically adjust the moving speed and position of the partition regulating plate 18.

[0214] Multiple partitions 122, multiple adjusting plates 18 and multiple second drive components 19 are corresponding one to one. The second drive component 19 is installed on the corresponding partition 122 and connected to the corresponding adjusting plate 18. When the partition 122 moves left and right along the second direction, the second drive component 19 and the adjusting plate 18 corresponding to the partition 122 also move synchronously with the partition 122.

[0215] In the vertical direction perpendicular to the second direction, the main controller 14 can control the second drive assembly 19 to drive the corresponding adjustment plate 18 to move, so as to adjust the blocking area of ​​the adjustment plate 18 on the flow through hole 121. The vertical direction can be the vertical direction in Figures 13-15. When the adjustment plate 18 moves in the vertical direction, it is not easy to interfere with the inner wall of the immersion liquid cooling cavity 11.

[0216] When the heat exchange medium in the submerged liquid cooling cavity 1111 is independently temperature-controlled, the main controller 14 can drive the adjustment plate 18 to move to the position where the flow passage 121 is completely blocked, as shown in Figure 15, through the second drive assembly 19. At this time, the flow passage 121 of the partition plates 122 on both sides of the submerged liquid cooling cavity 1111 is closed, and the heat exchange medium in the submerged liquid cooling cavity 1111 cannot flow and exchange heat with the external heat exchange medium through the flow passage 121.

[0217] When the partition 122 moves along the second direction, the main controller 14 can drive the adjusting plate 18 to move to a position that is at least partially offset from the flow through hole 121, i.e., the position shown in Figure 13 or Figure 14, through the second drive assembly 19. At this time, the flow through hole 121 on the partition 122 is opened to reduce the moving resistance of the partition 122. At the same time, the flow through hole 121 makes the submerged sub-liquid cooling cavities 1111 on both sides of the partition 122 form a communication, so that the liquid level in the submerged sub-liquid cooling cavities 1111 on both sides of the partition 122 remains unchanged before and after the movement.

[0218] When the battery sample 300 in the immersion sub-liquid cooling cavity 1111 needs to undergo large temperature difference adjustment such as alternating heating and cooling, the main controller 14 can drive the adjustment plate 18 to move to a position at least partially offset from the flow hole 121 through the second drive assembly 19, i.e., the position shown in Figure 13 or Figure 14. At this time, the flow hole 121 on the partition plate 122 on at least one side of the immersion sub-liquid cooling cavity 1111 is opened, and the heat exchange medium in the immersion sub-liquid cooling cavity 1111 and the external heat exchange medium can flow and exchange heat with each other through the flow hole 121, thereby realizing rapid adjustment of the temperature of the immersion sub-liquid cooling cavity 1111 and reducing the energy consumption of temperature adjustment.

[0219] For example, when the temperature of the heat exchange medium in one submerged liquid cooling chamber 1111 is 80°C and the temperature of the heat exchange medium in an adjacent submerged liquid cooling chamber 1111 is 20°C, if it is necessary to adjust the temperature difference between the two to less than 5°C, the regulating plate 18 can be controlled to gradually open to reduce its obstruction area on the flow through hole 121, so that the heat exchange medium of the two submerged liquid cooling chambers 1111 can flow and exchange heat with each other through the flow through hole 121, thereby gradually reducing the temperature difference between the two. The second drive component 19 can dynamically adjust the moving speed and position of the regulating plate 18 to precisely control the heat exchange rate of the two submerged liquid cooling chambers 1111, and avoid experimental errors or heat waste caused by excessively rapid temperature changes.

[0220] For example, according to experimental requirements, the temperature of the battery sample 300 in the immersion sub-liquid cooling chamber 1111 needs to be maintained at 80°C first, and then reduced to 20°C. When the immersion liquid cooling system is working, the temperature regulating component 15 can first heat the heat exchange medium in the immersion sub-liquid cooling chamber 1111 from room temperature (25°C) to 80°C. At this time, the flow holes 121 on the partitions 122 on both sides of the immersion sub-liquid cooling chamber 1111 are all blocked by the corresponding regulating plates 18, that is, the flow holes 121 are closed. After the battery sample 300 is tested in an 80°C environment, the temperature regulating plate 18 on at least one side of the partition 122 of the immersion sub-liquid cooling chamber 1111 is closed. The section plate 18 is driven by the corresponding second drive component 19 to a position at least partially offset from the flow through hole 121, that is, the flow through hole 121 is opened, and the room temperature heat exchange medium outside the immersion sub-liquid cooling cavity 1111 exchanges heat rapidly with the heat exchange medium inside the immersion sub-liquid cooling cavity 1111 through the flow through hole 121, thereby rapidly reducing the temperature of the heat exchange medium inside the immersion sub-liquid cooling cavity 1111 from 80°C to close to room temperature (25°C) without consuming energy. Then the flow through hole 121 is closed, and the temperature control component 15 cools the heat exchange medium inside the immersion sub-liquid cooling cavity 1111, which is close to room temperature, to 20°C.

[0221] Therefore, the main controller 14 can adjust the blocking area of ​​the regulating plate 18 on the flow through hole 121 through the second drive component 19 to realize the opening and closing function of the flow through hole 121, and adjust its flow area when the flow through hole 121 is open. When the temperature is adjusted by alternating between hot and cold, the flow through hole 121 can be opened to perform rapid temperature adjustment and reduce energy consumption.

[0222] In some embodiments of this application, referring to Figures 13-15, the partition 122 may have multiple flow holes 121, and the adjusting plate 18 may have multiple adjusting holes 181. When the partition 122 and the adjusting plate 18 are facing each other in the second direction, the multiple flow holes 121 and the multiple adjusting holes 181 are connected in a one-to-one correspondence. When the second driving component 19 drives the adjusting plate 18 to move upward in the vertical direction, the adjusting holes 181 and the corresponding flow holes 121 are gradually offset, and the blocking area of ​​the adjusting plate 18 on the flow holes 121 gradually increases until the adjusting plate 18 completely blocks each flow hole 121.

[0223] In some embodiments of this application, referring to Figures 13-15, the adjusting plate 18 has a second rack 182 extending in the vertical direction, and the second drive assembly 19 includes a third motor 191 and a third gear 192. The third motor 191 is connected to the partition 122, and the third gear 192 is fixed to the output shaft of the third motor 191. The third gear 192 meshes with the second rack 182.

[0224] Specifically, the third motor 191 on the adjusting plate 18 can drive the third gear 192 to rotate through its output shaft. The third gear 192 drives the second rack 182 to move in the vertical direction, thereby causing the adjusting plate 18 to move in the vertical direction relative to the partition 122. The second drive assembly 19 mechanism is simple and has high reliability.

[0225] In other embodiments not shown in the figures of this application, the second drive assembly 19 may also be configured as a second telescopic rod, which may be electrically or hydraulically driven to extend and retract in the vertical direction to drive the adjustment plate 18 to move.

[0226] According to the immersion liquid cooling system of this application embodiment, the interior of the immersion liquid cooling cavity 11 can be divided according to the shape and size of the battery sample 300 by means of the position-adjustable partition 122. The size of the immersion sub-liquid cooling cavity 1111 can be flexibly adjusted to improve the space utilization of the immersion liquid cooling cavity 11. At the same time, the temperature of the heat exchange medium in each immersion sub-liquid cooling cavity 1111 can be adjusted independently, and precise temperature control can be performed according to the actual needs of the individual battery. This design improves the adaptability and versatility of the immersion liquid cooling system, enabling it to flexibly adapt to battery samples of different types and sizes to meet diverse adaptation needs, reduce customization costs, and eliminate the need to design different immersion liquid cooling cavities 11 for different battery samples, thus saving production costs.

[0227] Each submerged liquid cooling chamber 1111 is equipped with a temperature sensor 172. The temperature control component 15 can adjust the temperature at different locations in the submerged liquid cooling chamber 11 in zones, so as to achieve independent adjustment of the temperature of the heat exchange medium in each submerged liquid cooling chamber 1111. The temperature sensor 172 can monitor the temperature change inside each submerged liquid cooling chamber 1111 in real time, so that the temperature controller 16 can accurately adjust the temperature, so that each submerged liquid cooling chamber 1111 can maintain the required constant temperature, avoid temperature interference between different submerged liquid cooling chambers 1111, effectively reduce errors and instabilities in the temperature control process, and improve the reliability and accuracy of experimental results.

[0228] The second drive assembly 19 can drive the adjustment plate 18 to move relative to the partition 122 to change the area of ​​the adjustment plate 18 blocking the flow hole 121 on the partition 122, thereby controlling the opening and closing of the flow hole 121 and the flow area, realizing rapid heat complementarity between the immersion sub-liquid cooling cavities 1111 in different temperature zones, so as to improve the temperature regulation efficiency and reduce energy consumption.

[0229] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0230] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0231] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0232] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0233] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An immersion liquid cooling system, wherein, include: A temperature regulating device includes a working chamber, a heat exchange chamber, an inlet pipe, an outlet pipe, a driving component, and a heat exchange device. The working chamber contains an immersion liquid-cooled cavity for holding a battery sample. The heat exchange chamber contains a heat exchange cavity. The inlet pipe and the outlet pipe are respectively connected between the heat exchange cavity and the immersion liquid-cooled cavity. The heat exchange cavity contains a heat exchange medium. The driving component is adapted to drive the heat exchange medium to flow between the heat exchange cavity and the immersion liquid-cooled cavity. The heat exchange device is adapted to adjust the temperature of the heat exchange medium within the heat exchange cavity. A battery holder is disposed within the immersion liquid cooling chamber and is used to fix the battery sample.

2. The immersion liquid cooling system according to claim 1, wherein, The working chamber has a liquid inlet hole formed on at least one side wall in a first direction, the liquid inlet hole connecting the liquid inlet pipe and the immersion liquid cooling chamber, the first direction being perpendicular to the vertical direction.

3. The immersion liquid cooling system according to claim 2, wherein, The working chamber has multiple liquid inlet holes formed on one side wall in the first direction, and the multiple liquid inlet holes are arranged at intervals in the second direction. The first direction, the second direction, and the vertical direction are perpendicular to each other. The liquid inlet pipe includes a first liquid inlet pipe, a second liquid inlet pipe, and a third liquid inlet pipe. The first liquid inlet pipe connects the heat exchange box and the second liquid inlet pipe. The second liquid inlet pipe extends along the second direction and has a plurality of first connecting holes arranged at intervals in the second direction. The first connecting holes correspond one-to-one with the liquid inlet holes. The third liquid inlet pipe connects the first connecting holes and the liquid inlet holes.

4. The immersion liquid cooling system according to claim 3, wherein, The first inlet pipe and the second inlet pipe are connected at the middle in the second direction.

5. The immersion liquid cooling system according to any one of claims 2-4, wherein, The heat exchange box is located on the lower side of the working box. A liquid outlet hole is formed on the bottom wall of the working box, which communicates with the immersion liquid cooling cavity. The liquid outlet hole connects the liquid outlet pipe and the immersion liquid cooling cavity.

6. The immersion liquid cooling system according to claim 5, wherein, The bottom wall of the working chamber has multiple liquid outlet holes arranged at intervals in the second direction, and the first direction, the second direction, and the vertical direction are perpendicular to each other. The liquid outlet pipe includes a first liquid outlet pipe, a second liquid outlet pipe, and a third liquid outlet pipe. The first liquid outlet pipe connects the heat exchange box and the second liquid outlet pipe. The second liquid outlet pipe extends along the second direction and has a plurality of second connecting holes arranged at intervals in the second direction. The second connecting holes correspond one-to-one with the liquid outlet holes. The third liquid outlet pipe connects the second connecting holes and the liquid outlet holes.

7. The immersion liquid cooling system according to claim 6, wherein, The first outlet pipe and the second outlet pipe are connected at the middle in the second direction.

8. The immersion liquid cooling system according to claim 5, wherein, The working chamber has liquid inlet holes formed on both side walls in the first direction, and there are two liquid inlet pipes, each corresponding to a liquid inlet hole on one of the two side walls in the first direction. The connection points of the two inlet pipes to the heat exchange box are respectively located on both sides of the connection point of the outlet pipe to the heat exchange box in the first direction.

9. The immersion liquid cooling system according to any one of claims 1-8, wherein, The heat exchange device includes a compressor, a condenser, an expansion valve, and an evaporator. The compressor, the condenser, the expansion valve, and the evaporator are connected in sequence to form a loop through a heat exchange pipeline. The heat exchange pipeline connecting the compressor and the evaporator passes through the heat exchange chamber.

10. The immersion liquid cooling system according to any one of claims 1-9, wherein, The battery holder includes: A fixing assembly, comprising a support assembly and a locking assembly, wherein the support assembly is fixable within the immersion liquid cooling chamber, and the locking assembly is fixable onto the support assembly, and the battery sample is adapted to be supported on the support assembly and locked by the locking assembly.

11. The immersion liquid cooling system according to claim 10, wherein, The support assembly includes two fixed rods that extend along a first direction and are spaced apart along a second direction. The battery sample is supported on the two fixed rods at both ends along the second direction. The first direction, the second direction, and the vertical direction are perpendicular to each other. Each of the two fixing rods is provided with a locking assembly for locking the two ends of the battery sample along the second direction.

12. The immersion liquid cooling system according to claim 11, wherein, The locking assembly includes two locking members spaced apart in the first direction. The two locking members on the same fixing rod are used to limit the bottom of the battery sample at two corners at both ends of the first direction.

13. The immersion liquid cooling system according to claim 12, wherein, The locking element includes a first plate and a second plate that are perpendicular to each other and connected. The two first plates of the two locking members on the same fixed rod are located on both sides of the battery sample along the first direction and are adapted to abut against the battery sample. The two second plates of the two locking members on the same fixed rod are located on the same side of the battery sample along the second direction. The second plates of the locking members on the two fixed rods are located on both sides of the battery sample along the second direction and are adapted to abut against the battery sample.

14. The immersion liquid cooling system according to claim 12, wherein, The locking member is movable along the length of the fixing rod and can be locked and fixed to the fixing rod.

15. The immersion liquid cooling system according to claim 14, wherein, The fixing rod has a first sliding groove extending along the length direction of the fixing rod, the locking member has a third plate, and the fixing assembly further includes: The first fastener passes through the first groove and is connected to the third plate.

16. The immersion liquid cooling system according to claim 11, wherein, The battery holder also includes: Two fixed slide rails are adapted to be fixed in the immersion liquid cooling cavity. The two fixed slide rails extend along the second direction and are spaced apart in the first direction. The two ends of the fixed rod along the length direction are respectively movably disposed on the two fixed slide rails along the second direction. The positioning components are provided at both ends of each of the fixed rods along its length, for fixing the fixed rods onto the fixed slide rails.

17. The immersion liquid cooling system according to claim 16, wherein, The positioning component includes: A positioning element having a second groove extending through the positioning element along the second direction, and a fixed slide rail passing through the second groove; The second fastener passes through the side wall of the second slide groove and abuts against the fixed slide rail.

18. The immersion liquid cooling system according to claim 17, wherein, The positioning element has a fixing groove, and one end of the fixing rod along its length is located within the fixing groove. The positioning assembly further includes: The third fastener is used to connect the fixing rod and the positioning element.

19. The immersion liquid cooling system according to any one of claims 1-18, wherein, It also includes: a sealing structure, which is installed to the working chamber, the sealing structure comprising: A first connector, the first connector having a first channel, the first channel penetrating the first connector along a first direction, the first connector having a plurality of first stepped surfaces arranged around the first channel, the plurality of first stepped surfaces being spaced apart along the first direction; The second connector has a second channel that extends through the second connector along the first direction. The second connector has a plurality of second stepped surfaces arranged around the second channel. The plurality of second stepped surfaces are spaced apart along the first direction. The first connector is located inside the second channel so that the plurality of second stepped surfaces are one-to-one opposite and fit with the plurality of first stepped surfaces. The first channel and the second channel are connected. A sealing ring is provided, wherein multiple sealing rings are provided, and each sealing ring is disposed between the corresponding mating first step surface and second step surface to seal the gap between the first step surface and the second step surface.

20. The immersion liquid cooling system according to claim 19, wherein, Each of the first step surfaces is provided with a sealing groove, and the sealing ring is located in the sealing groove.

21. The immersion liquid cooling system according to claim 19, wherein, Along the first direction, the first connector includes a plurality of first annular connectors connected in sequence. Each first annular connector has a first stepped surface on the side facing the second connector. Each first annular connector has a through hole formed inside. The plurality of through holes are connected to form the first channel, and the diameters of the plurality of through holes are all equal. In the direction from the first connector to the second connector, the outer diameters of the plurality of first annular connectors decrease sequentially.

22. The immersion liquid cooling system according to claim 21, wherein, The first connector is detachably connected to the liquid storage cavity. In the direction of the second connector toward the first connector, the first annular connector facing away from the second connector is detachably connected to the liquid storage cavity. The first channel communicates with the liquid storage cavity.

23. The immersion liquid cooling system according to claim 19, wherein, Along the first direction, the second connector includes a plurality of second annular connectors connected in sequence, each second annular connector having a second stepped surface on the side facing the first connector, and the outer diameter of the plurality of second annular connectors decreasing sequentially in the direction from the first connector to the second connector, and each second annular connector having a plurality of fourth connecting holes.

24. The immersion liquid cooling system according to any one of claims 1-23, wherein, It also includes: multiple partitions, the immersion liquid cooling cavity extends along the second direction, the partitions are disposed in the immersion liquid cooling cavity, the normal direction of the partitions is parallel to the second direction, and the edge of the partitions is sealed to the inner wall of the immersion liquid cooling cavity, so that two adjacent partitions define an immersion sub-liquid cooling cavity in the immersion liquid cooling cavity; Multiple first drive components are installed in the work box, and the multiple first drive components are connected to the multiple partitions one by one; A main controller is communicatively connected to each of the first drive components, and the main controller is used to control the first drive components to drive the corresponding partition to move along the second direction; Temperature control component, the temperature control component being installed in the working box; A temperature controller is communicatively connected to the temperature adjustment component, and the temperature controller is used to control the temperature adjustment component to adjust the temperature of the immersion liquid cooling cavity in any region in the second direction.

25. The immersion liquid cooling system according to claim 24, wherein, It also includes: a visual inspection device, which is communicatively connected to the main controller. The visual inspection device is used to detect the position of the battery in the immersion liquid cooling cavity to obtain position information, and sends the position information to the main controller. The main controller is also used to control the first drive component to drive the separator to move according to the position information, so that the minimum distance between the separator on both sides of the battery and the battery in the second direction is a preset distance.

26. The immersion liquid cooling system according to claim 24, wherein, The liquid level of the heat exchange medium in the immersion liquid cooling cavity is the same as the height of the partition, and the height of the partition is less than the cavity depth of the immersion liquid cooling cavity.

27. The immersion liquid cooling system according to claim 24, wherein, The inner wall of the immersion liquid cooling cavity is provided with a first guide rail and a first rack extending along the second direction; The first driving component includes: a first slider, a first motor, a first gear, a second slider, a second motor, and a second gear. The first slider and the second slider are both slidably engaged with the first guide rail. The first motor and the second motor are both communicatively connected to the main controller. The first motor is fixed to the first slider, the first gear is fixed to the output shaft of the first motor, and the first gear meshes with the first rack. The second motor is fixed to the second slider, the second gear is fixed to the output shaft of the second motor, and the second gear meshes with the first rack. In the second direction, the first slider and the second slider are sandwiched between the two sides of the partition.

28. The immersion liquid cooling system according to claim 27, wherein, Both the first guide rail and the first rack are located above the liquid surface of the heat exchange medium.

29. The immersion liquid cooling system according to claim 24, wherein, The partition includes: A partition body, wherein the partition body is connected to the corresponding first drive component; A sealing sleeve is fitted around the edge of the partition body and is in a sealing fit with the inner wall of the immersion liquid cooling cavity.

30. The immersion liquid cooling system according to claim 24, wherein, Also includes: Temperature sensor: Each of the submerged liquid cooling chambers is provided with at least one temperature sensor, which is communicatively connected to the temperature controller. The temperature sensor is used to detect the oil temperature of the heat exchange medium in the submerged liquid cooling chamber.

31. The immersion liquid cooling system according to claim 24, wherein, The temperature control component includes: Multiple refrigeration modules are evenly spaced at the bottom of the immersion liquid cooling chamber along the second direction, and each refrigeration module is communicatively connected to the temperature controller. Multiple heating modules are evenly spaced at the bottom of the immersion liquid cooling cavity along the second direction, and each heating module is communicatively connected to the temperature controller.

32. The immersion liquid cooling system according to claim 24, wherein, The partition has at least one flow hole, the axis of which is parallel to the second direction; The battery temperature regulation device further includes: multiple adjustment plates and multiple second drive components, wherein the multiple separators, multiple adjustment plates and multiple second drive components correspond one-to-one, the second drive components are installed on the corresponding separators, and the second drive components are connected to the corresponding adjustment plates; The main controller is also communicatively connected to each of the second drive components. The main controller is also used to control the second drive components to drive the corresponding adjustment plate to move in the up and down direction, so as to adjust the blocking area of ​​the adjustment plate on the flow through hole. The second direction is perpendicular to the vertical direction.

33. The immersion liquid cooling system according to claim 32, wherein, The adjusting plate has a second rack extending along the vertical direction; The second drive assembly includes a third motor and a third gear. The third motor is connected to the partition, and the third gear is fixed to the output shaft of the third motor. The third gear meshes with the second rack.

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