Online cleaning structure of liquid cooling system filter

Abstract

The utility model provides an online cleaning structure of liquid cooling system filter, include: casing, inside have the room for chamber, and the annular side is equipped with dismounting mouth, liquid input port and liquid output port, filter, have the filter core in the room for chamber and can be dismounted by dismounting mouth, pipeline group, be located in the room for chamber, and the liquid input port, liquid output port and filter are connected, and flow direction control module is suitable for in filter mode, control cooling liquid from liquid input port input after flowing through filter, export from liquid output port, and suitable for in bypass mode, control cooling liquid from liquid input port input does not flow through filter and exports from liquid output port. The utility model under the premise of not interfering with liquid cooling system operation, carry out the maintenance work of filter, effectively solve the inconvenience of existing technology needs to stop or dismount, improve the maintainability and overall reliability of liquid cooling system.

Description

Technical Field

[0001] This utility model relates to a filter cleaning structure, and more particularly to an online cleaning structure for a liquid cooling system filter that does not require shutdown. Background Technology

[0002] With the continuous improvement of computing performance of electronic devices, the heat flux generated by processors (such as CPUs and GPUs) has increased significantly, and the requirements for heat dissipation efficiency in data centers, edge computing devices, and high-performance computing (HPC) systems are becoming increasingly stringent. Liquid cooling systems, due to their advantages such as high efficiency and low noise, are gradually replacing traditional air cooling systems and becoming the mainstream cooling technology for modern data centers.

[0003] The Cooling Distribution Unit (CDU) is a key component of a liquid cooling system. Its function is to transfer the cooling energy from the building's cooling water (primary side) to the coolant (secondary side) that is circulated inside the server via a plate heat exchanger, thereby achieving high-efficiency heat removal.

[0004] In addition, CDUs can be classified into floor-mounted CDUs and in-rack CDUs based on their installation location. In-rack CDUs are suitable for deployment in a single high-heat-density rack due to their small size, modularity, and proximity to heat sources.

[0005] Generally, cabinet-type CDUs have filters in the secondary coolant circuit to filter out impurities in the coolant, such as welding slag, rust, air bubbles, or other solid particles. This prevents impurities from entering the cold plate cooling channels or pump system, which could lead to blockages, increased pressure loss, reduced flow, or even system overheating and equipment damage, affecting the overall stability and lifespan of the cabinet-type CDU. Utility Model Content

[0006] However, in existing cabinet-type CDUs, when the filter needs to be cleaned or replaced, operation must be stopped and the entire cabinet-type CDU must be pulled out of the cabinet. The filter can only be removed after the top cover is opened for drainage, disassembly and maintenance. This is not only time-consuming and labor-intensive, but also exposes high-performance electronic equipment to the risk of interrupted cooling during the cleaning or replacement of the filter.

[0007] In view of the shortcomings of the prior art, the applicant felt that it was not perfect and devoted all his efforts to research and overcome it. He has successfully developed an online cleaning structure for liquid cooling system filters. This structure can be applied to liquid cooling systems, and when the filter needs to be cleaned or replaced, the liquid cooling system can continue to operate normally without stopping. When this structure is applied to cabinet-type CDUs, the filter can be cleaned or replaced without having to be pulled out of the cabinet.

[0008] To achieve the above or other objectives, this utility model provides an online cleaning structure for a liquid cooling system filter, comprising: a housing having an internal chamber and a circumferentially arranged disassembly port, a liquid inlet port, and a liquid outlet port; a filter having a filter element located in the chamber and detachable via the disassembly port; a piping assembly located in the chamber and connecting the liquid inlet port, the liquid outlet port, and the filter; and a flow direction control module adapted to, in filtration mode, control the coolant input from the liquid inlet port to flow through the filter and then be output from the liquid outlet port; and adapted to, in bypass mode, control the coolant input from the liquid inlet port to not flow through the filter and instead be output from the liquid outlet port.

[0009] In the above-mentioned online cleaning structure of the liquid cooling system filter, the pipeline group may include a first multi-port connector and a second multi-port connector. The first multi-port connector may have a liquid inlet, a filterable part, and a first bypass part. The liquid inlet is connected to the liquid input port. The second multi-port connector may have a liquid outlet, a filtered part, and a second bypass part. The liquid outlet is connected to the liquid output port.

[0010] In the above-mentioned online cleaning structure of the liquid cooling system filter, the flow direction control module may include a first valve, a second valve, and two control units. The first valve is located in the first multi-port connector, and the second valve is located in the second multi-port connector. One control unit is connected to the first valve to switch the connection state in the first multi-port connector, and the other control unit is connected to the second valve to switch the connection state in the second multi-port connector.

[0011] In the above-described online cleaning structure of the liquid cooling system filter, each of the two control units can be rotated to a first position to switch to the filtration mode of the flow control module. One control unit, in conjunction with the first valve, switches the liquid inlet section to connect with the filter section but not the first bypass section, while the other control unit, in conjunction with the second valve, switches the liquid outlet section to connect with the filtered section but not the second bypass section. Alternatively, each of the two control units can be rotated to a second position to switch to the bypass mode of the flow control module. One control unit, in conjunction with the first valve, switches the liquid inlet section to connect with the first bypass section but not the filter section, while the other control unit, in conjunction with the second valve, switches the liquid outlet section to connect with the second bypass section but not the filtered section.

[0012] In the above-mentioned online cleaning structure of the liquid cooling system filter, the housing has a top surface, the top surface may be provided with two perforations, each of the two control parts may include an extension and a knob, the two extensions are located in the chamber, one end of the two extensions may be connected to the corresponding first valve or second valve, and the other end of the two extensions may be located at the two perforations and connected to the two knobs.

[0013] In the above-mentioned online cleaning structure of the liquid cooling system filter, the knob can protrude from the top surface of the housing, and the knob is detachably attached to the circumferential side of the housing or a corresponding extension.

[0014] In the above-mentioned online cleaning structure of the liquid cooling system filter, the housing has a front end face and a rear end face, the liquid inlet port and the liquid outlet port can be located on the rear end face, and the disassembly port can be located on the front end face or the rear end face.

[0015] In the above-mentioned online cleaning structure of the liquid cooling system filter, the filter may include a housing, a cover and a pressure relief valve. One end of the housing may be liquid-tightly connected to the pipeline assembly. The filter element may be housed in the housing. The cover may be liquid-tightly connected to the housing. The pressure relief valve may penetrate and be connected to the cover.

[0016] In the above-mentioned online cleaning structure of the liquid cooling system filter, one end of the filter element can be fixedly connected to the cover.

[0017] Accordingly, the online cleaning structure of the liquid cooling system filter of this invention enables online cleaning of the filter; that is, the liquid cooling system does not need to be shut down during the cleaning or replacement of the filter element, thus protecting high-performance electronic equipment from the risks of interrupted cooling during filter cleaning or replacement. Furthermore, this invention allows for direct removal and installation of the filter element from the circumferential side of the housing without disassembling the machine, improving operational convenience during maintenance. Therefore, the online cleaning structure of the liquid cooling system filter of this invention can perform filter maintenance without interfering with the operation of the liquid cooling system, effectively solving the inconvenience of requiring shutdown or disassembly in existing technologies, and improving the maintainability and overall reliability of the liquid cooling system. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings required in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention.

[0020] Figure 2 This is a partial three-dimensional exploded structural diagram of an embodiment of the present invention.

[0021] Figure 3 This is a rear view structural schematic diagram of an embodiment of the present invention.

[0022] Figure 4 It is along Figure 1 Cross-sectional view of line AA in the middle.

[0023] Figure 5 This is a schematic diagram of the pipeline flow direction in the filtration mode of one embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the pipeline flow direction in the bypass mode of an embodiment of this utility model.

[0025] Figure 7 This is a partial top view of an embodiment of the present invention in filtering mode.

[0026] Figure 8 This is a flowchart illustrating an embodiment of the present invention.

[0027] Figure 9 This is a partial top view of an embodiment of the present invention in bypass mode.

[0028] Figure 10 This is a partial top view of the structure of an embodiment of the present invention during the working mode switching process.

[0029] Figure Labels

[0030] 1. Casing

[0031] 1a Top surface

[0032] 1b Bottom surface

[0033] 1c front end

[0034] 1d back face

[0035] 11 Containers

[0036] 12 disassembly / assembly ports

[0037] 13 Liquid Inlet Port

[0038] 14 Liquid output port

[0039] 15. Perforation

[0040] 16. Signage

[0041] 2 Filters

[0042] 21 Filter Cartridge

[0043] 22. Outer shell

[0044] 23. Capping

[0045] 24 Pressure relief valve

[0046] 25. Resilient seal

[0047] 26 clamps

[0048] 3 Piping Assembly

[0049] 31 First multi-port connector

[0050] 311 liquid entry part

[0051] 312 Filtering section

[0052] 313 First Bypass Section

[0053] 32 Second multi-port connector

[0054] 321 Liquid outlet

[0055] 322 Filtration Section

[0056] 323 Second Bypass

[0057] 4. Flow control module

[0058] 41 First Valve

[0059] 42 Second valve

[0060] 43. Regulation Department

[0061] 431 Extension

[0062] 432 Knob

[0063] S1 Preparation Steps

[0064] S2 First Switching Step

[0065] S3 Decompression Procedure

[0066] S4 Disassembly Steps

[0067] S5 Installation Steps

[0068] S6 Second Switching Step Detailed Implementation

[0069] The online cleaning structure of the liquid cooling system filter of this utility model embodiment will be further described below with reference to the accompanying drawings.

[0070] The foregoing and other technical contents, features and effects of the utility model will be clearly presented in the following detailed description of the preferred embodiments with reference to the accompanying drawings.

[0071] It is worth mentioning that the terms "combination", "integration" or "assembly" used throughout this utility model mainly include those that can be separated without damaging the components after connection, or those that make the components inseparable after connection. These are options that those with ordinary knowledge in the art can choose based on the material of the components to be connected or the assembly requirements.

[0072] Furthermore, in the following embodiments, the same or similar components will be labeled with the same or similar reference numerals.

[0073] Please refer to Figure 1 and Figure 2 This is a preferred embodiment of the online cleaning structure for the liquid cooling system filter of this utility model. The online cleaning structure for the liquid cooling system filter includes a housing 1, a filter 2, a piping assembly 3, and a flow direction control module 4. The filter 2, the piping assembly 3, and the flow direction control module 4 are all located in the housing 1. In this embodiment, the liquid cooling system is taken as an example of an in-cabinet CDU, and the following description focuses on cleaning the filter 2 installed in the secondary side coolant circuit. However, this does not limit the liquid cooling system to which this utility model is applicable.

[0074] Please refer to Figures 1 to 3 The housing 1 has an internal chamber 11, and its circumferential sides are provided with a disassembly port 12, a liquid inlet port 13, and a liquid outlet port 14. For example, but not limited to, the housing 1 in this embodiment may be generally rectangular, with opposing top surfaces 1a and bottom surfaces 1b, and opposing front surface 1c and rear surface 1d. The liquid inlet port 13 and the liquid outlet port 14 are usually located on the rear surface 1d, while the disassembly port 12 may be optionally located on the front surface 1c, the rear surface 1d, or the left or right side of the housing 1.

[0075] The filter 2 has a filter element 21 located in the chamber 11. When cleaning or replacing the filter element 21, the filter element 21 can be pulled out from the disassembly port 12 of the housing 1. Therefore, the disassembly port 12 is preferably located on the front end face 1c or the rear end face 1d of the housing 1 to improve the ease of operation when disassembling and assembling the filter element 21 (details to follow).

[0076] For more details, please refer to Figures 2 to 4In one embodiment of this utility model, the filter 2 further includes a housing 22, a cap 23, and a pressure relief valve 24. The housing 22 is tubular and one end is liquid-tightly connected to the pipeline assembly 3, and the filter element 21 is housed in the housing 22. The cap 23 is liquid-tightly connected to the housing 22, and the pressure relief valve 24 penetrates and is connected to the cap 23, with a portion of the pressure relief valve 24 exposed outside the cap 23. One end of the filter element 21 can be fixedly connected to the cap 23 so that the filter element 21 can be easily pulled out when the cap 23 is opened. Furthermore, an elastic sealing element 25 can be provided between the cap 23 and the housing 22, and the outer edges of the cap 23 and the housing 22 can be clamped together by a clamping ring 26 to achieve a liquid-tight connection between the cap 23 and the housing 22, but this structure is not limited to this.

[0077] Please refer to Figure 2 and Figure 5 The piping assembly 3 is located within the chamber 11 and connects to the liquid inlet 13, the liquid outlet 14, and the filter 2. The flow direction control module 4 is adapted to... Figure 5 In the filtration mode shown, the coolant input from the liquid inlet 13 is controlled to flow through the filter 2 and then output from the liquid outlet 14; and is suitable for use in situations such as Figure 6 In the bypass mode shown, the coolant input from the liquid input port 13 is controlled to not flow through the filter 2 and instead be output from the liquid output port 14.

[0078] For details, please refer to Figure 2 and Figure 5 In one embodiment of this utility model, the pipeline assembly 3 may include a first multi-port connector 31 and a second multi-port connector 32. The first multi-port connector 31 has a liquid inlet 311, a filter section 312, and a first bypass section 313. The liquid inlet 311 is connected to the liquid input port 13, allowing coolant from the liquid input port 13 to flow into the first multi-port connector 31 through the liquid inlet 311. The second multi-port connector 32 has a liquid outlet 321, a filter section 322, and a second bypass section 323. The liquid outlet 321 is connected to the liquid output port 14, allowing coolant to flow out of the second multi-port connector 32 through the liquid outlet 321.

[0079] On the other hand, the flow control module 4 may include a first valve 41, a second valve 42, and two control units 43. The first valve 41 is disposed within the first multi-port connector 31, and the second valve 42 is disposed within the second multi-port connector 32. One of the control units 43 may be directly or indirectly connected to the first valve 41, so that when the control unit 43 rotates, it actuates the first valve 41 to switch the connection state within the first multi-port connector 31. Similarly, the other control unit 43 may be directly or indirectly connected to the second valve 42, so that when the control unit 43 rotates, it actuates the second valve 42 to switch the connection state within the second multi-port connector 32.

[0080] Please refer to Figure 2 and Figure 7 In one embodiment of this utility model, the first valve 41 and the second valve 42 can be manual valves, and each of the two control parts 43 can include an extension 431 and a knob 432. The top surface 1a of the housing 1 has two through holes 15. The two extensions 431 are located in the chamber 11. One end of each extension 431 is directly or indirectly connected to the corresponding first valve 41 or second valve 42, and the other end of each extension 431 is located at the two through holes 15 and connected to the two knobs 432. Thus, the user can operate and control the knobs 432 from the top surface 1a of the housing 1, thereby switching the connection state of the first valve 41 or second valve 42 corresponding to the knob 432. Furthermore, the flow control module 4 of this embodiment can also switch operating modes using a mechanical switching structure, which is simpler and more durable than an electrically controlled switching structure.

[0081] The knob 432 can protrude from the top surface 1a of the housing 1, allowing the user to directly rotate it with their fingers. However, the knob 432 protruding from the top surface 1a of the housing 1 may interfere with or scratch other equipment in the cabinet. Therefore, in one embodiment of this utility model, the knob 432 can be detachable; that is, the knob 432 can be attached to the circumferential side of the housing 1 (e.g., Figure 2 As shown), for example, when the first valve 41 (or the second valve 42) is to be switched to a connected state, the control part 43 can be removed and moved to the top surface 1a of the housing 1 to engage with the corresponding extension 431 (as shown). Figure 7 (As shown).

[0082] On the other hand, each of the perforations 15 is preferably provided with a marking portion 16 around its periphery to indicate to the user the correct direction to rotate the knob 432 when switching the connection state of the first valve 41 or the second valve 42, thereby reducing the possibility of operational errors.

[0083] Please refer to Figure 7 In one embodiment of the present invention, the marking part 16 has the text "ON" in the first position and the text "BYPASS" in the second position, and an arrow symbol between the first position and the second position; however, the present invention is not limited to this type of marking part 16.

[0084] Please refer to the following when using it. Figure 2 , Figure 5 and Figure 7 When the knobs 432 of the two control units 43 are each turned to the first position, the flow control module 4 can enter the aforementioned filtration mode. At this time, one control unit 43 activates the first valve 41 to switch the liquid inlet 311 to connect to the filter section 312 without connecting to the first bypass section 313; the other control unit 43 activates the second valve 42 to switch the liquid outlet 321 to connect to the filter section 322 without connecting to the second bypass section 323. Therefore, the coolant from the liquid inlet port 13 can flow into the first multi-port connector 31 and then continue to the filter 2; after being filtered by the filter element 21, it flows through the filter section 322 into the second multi-port connector 32, and then is output from the liquid outlet port 14, thereby filtering out impurities in the coolant.

[0085] Under normal operating conditions, the pressure difference between the inlet and outlet of filter 2 detected by the system is small when the continuously circulating coolant is in normal operation. However, when the filter element 21 of filter 2 has filtered out more or larger impurities, the pressure difference between the inlet and outlet of filter 2 detected by the system will increase, and when it exceeds the set threshold, an alarm will be issued to notify the user to clean or replace the filter element 21.

[0086] Please refer to Figure 8 The online cleaning structure of the liquid cooling system filter in the foregoing embodiment can be used to implement the online cleaning method of the liquid cooling system filter of a preferred embodiment of the present invention, including the following steps:

[0087] Preparation step S1: Prepare a drying bag (approximately 10L) and place the drying bag adjacent to the disassembly port 12 of the housing 1; the drying bag is adapted to collect the coolant that will later flow out through the disassembly port 12 to prevent it from wetting the surrounding environment.

[0088] First switching step S2: Please refer to the following: Figure 2 The flow control module 4 is switched from the filtering mode to the bypass mode. Specifically, in this embodiment, the knobs 432 of the two control units 43 can first be removed from the circumferential side of the housing 1 and moved to the top surface 1a of the housing 1 to engage the corresponding extension 431; at this time, the two knobs 432 are each located as follows... Figure 7 The first position is shown. Please refer to the following for further details. Figure 6 and Figure 9 Turning the knobs 432 of both control units 43 to the second position allows the flow control module 4 to enter the aforementioned bypass mode. At this time, one control unit 43 activates the first valve 41 to switch the liquid inlet 311 to connect with the first bypass 313 but not with the filter section 312; the other control unit 43 activates the second valve 42 to switch the liquid outlet 321 to connect with the second bypass 323 but not with the filter section 322. Thus, coolant from the liquid inlet port 13, after flowing into the first multi-port connector 31, does not flow to the filter 2, but instead flows through the first bypass 313 into the second multi-port connector 32, and then is output from the liquid outlet port 14.

[0089] Decompression step S3: Please refer to the following: Figure 6 After completing the first switching step S2, the portion of the pipeline assembly 3 connected to the filter 2 will be isolated, leaving only the hydraulic pressure inside the filter 2. At this time, please refer to [reference needed]. Figure 4 The pressure can be released by pressing the pressure relief valve 24 to release the pressure inside the filter 2 and discharge the residual coolant in the filter 2. The discharged coolant can flow into the drying bag for collection.

[0090] Disassembly step S4: Please refer to the following: Figure 2 and Figure 4 Remove the filter element 21 of the filter 2 from the disassembly port 12 of the housing 1, and clean or replace the filter element 21. Specifically, in this embodiment, the filter element 21 can be removed after the internal pressure of the filter 2 has been fully released. Specifically, the clamping ring 26 can be removed first, separating the cover 23 from the outer casing 22, and the filter element 21 can be pulled out along with the cover 23 as it moves. It is worth noting that this action of pulling out the filter element 21 will still result in the discharge of coolant; therefore, when performing this step, the drying bag should preferably remain adjacent to the disassembly port 12 of the housing 1.

[0091] Installation step S5: Please refer to the following instructions. Figure 2 and Figure 4 The cleaned filter element 21 (or a new filter element 21) is then reinstalled through the disassembly port 12 of the housing 1; that is, the filter element 21 is reinstalled inside the outer casing 22, and the cover 23 is then liquid-tightly closed back onto the outer casing 22. In embodiments where one end of the filter element 21 is fixedly connected to the cover 23, attention should be paid to whether the elastic sealing member 25 is sleeved around the circumference of the filter element 21 to ensure that when the cover 23 and the outer casing 22 are tightly connected again by the clamping ring 26, the elastic sealing member 25 can be clamped between the cover 23 and the outer casing 22, ensuring good liquid tightness.

[0092] Second switching step S6: Please refer to the following: Figure 5 and Figure 7 Then, the flow control module 4 is switched from bypass mode back to filtration mode. Specifically, in this embodiment, both knobs 432 of the two control units 43 can be turned back to the first position, allowing the flow control module 4 to return to the aforementioned filtration mode. At this time, one control unit 43, in conjunction with the first valve 41, switches back to connect the liquid inlet 311 to the filter section 312, but not to the first bypass section 313; the other control unit 43, in conjunction with the second valve 42, switches back to connect the liquid outlet 321 to the filtered section 322, but not to the second bypass section 323. (Please refer to the following for further details.) Figure 2 Separate the knobs 432 of the two control parts 43 from the corresponding extensions 431, and move them from the top surface 1a of the housing 1 back to the circumferential side of the housing 1 for safekeeping.

[0093] Accordingly, the online cleaning structure of the liquid cooling system filter in this embodiment enables online cleaning of filter 2. That is, during the cleaning or replacement of the filter element 21 of filter 2, the liquid cooling system (in this embodiment, an in-cabinet CDU) does not need to be shut down and can maintain normal operation, preventing high-performance electronic equipment from being exposed to the risks of interrupted cooling during filter 2 cleaning or replacement. Furthermore, in this embodiment, the filter element 21 of filter 2 can be directly removed from the circumferential side of the housing 1. Therefore, when cleaning or replacing the filter element 21 of filter 2, it is not necessary to pull the entire in-cabinet CDU out of the cabinet, improving operational convenience during maintenance. Thus, the online cleaning structure of the liquid cooling system filter in this embodiment can perform filter 2 maintenance without interfering with the operation of the liquid cooling system, effectively solving the inconvenience of requiring shutdown or disassembly in existing technologies, and improving the maintainability and overall reliability of the liquid cooling system.

[0094] It is worth mentioning that, in the first switching step S2, during the process of switching the two knobs 432 from the first position to the second position, it is preferable to first adjust the two knobs 432 sequentially or simultaneously to halfway between the first position and the second position (e.g., Figure 10 (as shown), then sequentially or simultaneously turn the two knobs 432 completely to the second position (as shown). Figure 9(As shown); When rotating the two knobs 432 sequentially, the order in which they are rotated is not restricted. Alternatively, the two knobs 432 can be simultaneously and slowly switched from the first position to the second position. This avoids a situation where one knob 432 has been switched to the second position while the other remains in the first position, causing a momentary partial blockage in the pipeline assembly 3, thus preventing uninterrupted operation. Similarly, the operation method for adjusting the positions of the two knobs 432 in the second switching step S6 is the same.

[0095] Furthermore, in some embodiments, such as when the knob 432 does not protrude from the top surface 1a of the housing 1, or when protrusion does not cause interference, the process of disassembling, moving, and installing the knob 432 in the aforementioned first switching step S2 and second switching step S6 can be omitted.

[0096] The above description is merely an embodiment of this utility model and is not intended to limit the patent scope of this utility model.

Claims

1. An online cleaning structure for a liquid cooling system filter, characterized in that, include: The casing has an internal chamber and is equipped with a disassembly port, a liquid inlet port, and a liquid outlet port on the circumference. A filter having a filter element located in the chamber and removable via the disassembly port; A piping assembly, located in the chamber, connects the liquid inlet, the liquid outlet, and the filter; and The flow control module is adapted to control the coolant input from the liquid inlet port to flow through the filter and then be output from the liquid outlet port in a filtration mode; and is also adapted to control the coolant input from the liquid inlet port to be output from the liquid outlet port without flowing through the filter in a bypass mode.

2. The online cleaning structure for the liquid cooling system filter according to claim 1, characterized in that, The pipeline assembly includes a first multi-port connector and a second multi-port connector. The first multi-port connector has a liquid inlet section, a filter section and a first bypass section. The liquid inlet section is connected to the liquid input port. The second multi-port connector has a liquid outlet section, a filter section and a second bypass section. The liquid outlet section is connected to the liquid output port.

3. The online cleaning structure for the liquid cooling system filter according to claim 2, characterized in that, The flow control module includes a first valve, a second valve, and two control units. The first valve is located inside the first multi-port connector, and the second valve is located inside the second multi-port connector. One control unit is connected to the first valve to switch the connection state inside the first multi-port connector, and the other control unit is connected to the second valve to switch the connection state inside the second multi-port connector.

4. The online cleaning structure for the liquid cooling system filter according to claim 3, characterized in that, Each of the two control units rotates to a first position to switch to the filtration mode of the flow control module. One control unit, in conjunction with the first valve, switches the inlet section to connect with the filter section but not with the first bypass section, while the other control unit, in conjunction with the second valve, switches the outlet section to connect with the filtered section but not with the second bypass section. Alternatively, each of the two control units rotates to a second position to switch to the bypass mode of the flow control module. One control unit, in conjunction with the first valve, switches the inlet section to connect with the first bypass section but not with the filter section, while the other control unit, in conjunction with the second valve, switches the outlet section to connect with the second bypass section but not with the filtered section.

5. The online cleaning structure for the liquid cooling system filter according to claim 3, characterized in that, The housing has a top surface with two through holes. Each of the two control parts includes an extension and a knob. The two extensions are located in the chamber. One end of the two extensions is connected to the corresponding first valve or second valve, and the other end of the two extensions is located in the two through holes and connected to the two knobs.

6. The online cleaning structure for the liquid cooling system filter according to claim 5, characterized in that, The knob protrudes from the top surface of the housing and is detachably attached to the circumferential side of the housing or a corresponding extension.

7. The online cleaning structure for the liquid cooling system filter according to claim 1, characterized in that, The housing has a front end face and a rear end face, the liquid inlet port and the liquid outlet port are located on the rear end face, and the disassembly port is located on the front end face or the rear end face.

8. The online cleaning structure for the liquid cooling system filter according to claim 1, characterized in that, The filter includes a housing, a cover, and a pressure relief valve. One end of the housing is liquid-tightly connected to the pipeline assembly. The filter element is housed in the housing. The cover is liquid-tightly connected to the housing. The pressure relief valve penetrates and is connected to the cover.

9. The online cleaning structure for the liquid cooling system filter according to claim 8, characterized in that, One end of the filter element is fixedly connected to the cover.

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