Automatic liquid injection and drainage valve and immersed liquid cooling system

Abstract

The utility model relates to the technical field of liquid cooling, and discloses an automatic liquid injection and drainage valve and an immersed liquid cooling system, which are used for realizing automatic conduction and self-locking closing of the automatic liquid injection and drainage valve and facilitating liquid injection and drainage of electronic equipment. The automatic liquid injection and drainage valve comprises a valve seat, a valve body and an elastic reset piece. The valve seat is connected to the electronic equipment, the valve seat is provided with an overflowing channel, the overflowing channel is used for communicating the interior and the exterior of the electronic equipment, one end of the elastic reset piece is connected to the valve seat, and the other end of the elastic reset piece is connected to the valve body. The side, away from the valve seat, of the valve body is used for making contact with the inner wall of the cabinet, when the elastic reset piece is located at the first station, the flow passing channel is in a conducting state, and when the elastic reset piece is compressed to the second station, the valve body makes contact with the valve seat to block the flow passing channel.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling, in particular to an automatic liquid filling and discharging valve and an immersion type liquid cooling system. Background Art

[0002] With the continuous development of high-performance servers, liquid cooling technology is increasingly being applied to data centers due to its advantages of efficient heat dissipation. In a liquid cooling system, electronic equipment is usually directly immersed in the coolant to achieve heat dissipation of the electronic equipment. When the electronic equipment is completely immersed in the coolant, the electronic equipment is equipped with flow holes or valves to allow the coolant to enter and exit the device, so that the inside of the device is completely filled with liquid.

[0003] Taking the liquid cooling distribution unit of electronic equipment as an example, the liquid cooling distribution unit is equipped with a valve for internal and external conduction. During the installation of the liquid cooling distribution unit in the cabinet, the valve is required to remain conductive, and after installation, the valve is required to be able to close automatically. However, the valves with automatic opening and closing functions currently on the market require a certain pressure to open. When the fluid pressure is lower than the opening pressure, the valve cannot reach the conductive state, resulting in inconvenience in use. Utility Model Content

[0004] The utility model provides an automatic liquid filling and discharging valve and an immersion liquid cooling system, which can realize automatic conduction and self-locking closure of the automatic liquid filling and discharging valve, so as to facilitate liquid filling and liquid discharging of electronic equipment.

[0005] In a first aspect, the utility model provides an automatic liquid filling and draining valve, which is applied to electronic equipment with immersion liquid cooling, and the automatic liquid filling and draining valve comprises a valve seat, a valve body and an elastic reset member;

[0006] The valve seat is connected to the electronic device, and the valve seat is provided with a flow passage, and the flow passage is used to connect the inside of the electronic device with the outside;

[0007] One end of the elastic return member is connected to the valve seat, and the other end of the elastic return member is connected to the valve body;

[0008] The side of the valve body facing away from the valve seat is used to contact the inner wall of the cabinet. When the elastic reset member is in the first position, the flow channel is in a conducting state. When the elastic reset member is compressed to the second position, the valve body contacts the valve seat to block the flow channel.

[0009] The automatic filling and discharging valve provided by the utility model utilizes an elastic reset member to connect the valve body and the valve seat, and the valve seat is provided with a flow passage for communicating with the inside of the electronic device. When the elastic reset member is in the first position, which is the initial position, the flow passage is conducted, and when the elastic reset member is compressed to the second position, the flow passage is blocked. When the electronic device is immersed in the coolant filled in the cabinet, the coolant can flow into the electronic device through the flow passage. As the electronic device moves in the cabinet, the valve body can abut against the inner wall of the cabinet, and when the electronic device further moves in the direction from the valve seat to the valve body, the elastic reset member can be compressed until the elastic reset member is in the second position, the flow passage is blocked, and the coolant no longer flows into the inside of the electronic device. When the electronic device is taken out, the electronic device moves in the direction from the valve body to the valve seat, and the valve body gradually breaks away from contact with the inner wall of the cabinet. Under the elastic force of the elastic reset member, the valve body can be moved away from the valve seat, and then the flow passage is conducted again, so that the coolant inside the electronic device can be discharged through the flow passage. Therefore, the automatic filling and discharging valve of the utility model can automatically achieve conduction without opening pressure, thereby facilitating the filling and discharging of electronic equipment.

[0010] In some possible implementations, the valve seat includes a top plate and a first side plate, the top plate is connected to the electronic device, the first side plate is connected to a side of the top plate facing away from the electronic device, and the valve seat is located on a side of the first side plate facing away from the top plate and has a first opening;

[0011] The flow passage comprises a first flow hole provided on the top plate, and the first opening is communicated with the first flow hole;

[0012] When the elastic return member is in the second position, the valve body is used to block the first opening.

[0013] In some possible implementations, the flow passage further includes a second flow hole provided on the first side plate, and the second flow hole is connected to the first flow hole;

[0014] When the elastic reset member is in the second working position, the valve body is further used to block the second flow hole.

[0015] In some possible implementations, the valve body includes a bottom plate and a second side plate, wherein the second side plate is connected to the bottom plate to cooperate with the bottom plate to enclose and form a receiving space having a second opening on one side;

[0016] The elastic reset member is disposed through the second opening and connected to the bottom plate;

[0017] The first side plate can extend into the accommodation space through the second opening, and when the elastic resetting member is in the second working position, the outer wall of the first side plate contacts the inner wall of the second side plate.

[0018] In some possible embodiments, there are a plurality of second flow holes, and the second flow holes are circumferentially spaced apart around the first side plate.

[0019] In some possible embodiments, a valve stem is further included, and the valve stem extends along the arrangement direction of the valve seat and the valve body;

[0020] One end of the valve stem is connected to the valve body, and the elastic resetting member is sleeved on the valve stem so that the valve seat can move relative to the valve stem along the extension direction of the valve stem.

[0021] In some possible embodiments, the valve stem includes a rod body and a rod cap, and the first end of the rod body is connected to the valve seat;

[0022] The valve seat is provided with a mounting hole, the size of the mounting hole is smaller than the size of the rod cap, the rod cap is located on the side of the valve seat away from the valve body, and the second end of the rod body passes through the mounting hole and is connected to the rod cap.

[0023] In some possible embodiments, the connection between the valve stem and the valve body is detachable.

[0024] In some possible embodiments, the valve body is provided with a mounting handle.

[0025] In a second aspect, the present invention provides an immersion liquid cooling system, including a cabinet, electronic devices, and an automatic liquid injection and drainage valve as described in any one of the possible embodiments in the first aspect;

[0026] The cabinet is filled with a coolant, and the electronic devices are immersed in the coolant;

[0027] The valve seat of the automatic liquid injection and drainage valve is connected to the electronic device, and the valve body of the automatic liquid injection and drainage valve abuts against the inner wall of the cabinet so that the elastic resetting member is in the second working position. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of an automatic liquid injection and drainage valve in an embodiment of the present invention;

[0029] Figure 2 It is a schematic structural diagram of an automatic liquid injection and drainage valve immersed in the coolant in the cabinet in an embodiment of the present invention;

[0030] Figure 3A schematic structural diagram of the automatic liquid injection and drainage valve in the embodiment of the present utility model abutting against the bottom plate of the cabinet;

[0031] Figure 4 An exploded structural diagram of the automatic liquid injection and drainage valve in the embodiment of the present utility model;

[0032] Figure 5 Another exploded structural diagram of the automatic liquid injection and drainage valve in the embodiment of the present utility model;

[0033] Figure 6 For Figure 5 A schematic cross-sectional structure diagram of the liquid injection and drainage valve in

[0034] Figure 7 A schematic structural diagram of the automatic liquid injection and drainage valve in the embodiment of the present utility model abutting against the side plate of the cabinet;

[0035] Figure 8 A schematic structural diagram of the automatic liquid injection and drainage valve in the embodiment of the present utility model abutting against the top plate of the cabinet.

[0036] In the figure:

[0037] 10 - Cabinet; 11 - Bottom plate of the cabinet; 12 - Side plate of the cabinet; 13 - Top plate of the cabinet; 20 - Electronic equipment; 100 - Automatic liquid injection and drainage valve; 110 - Valve seat; 111 - Top plate; 1111 - Mounting hole; 112 - First side plate; 113 - First opening; 120 - Valve body; 121 - Bottom plate; 122 - Second side plate; 123 - Second opening; 124 - Mounting handle; 130 - Elastic reset member; 140 - Valve stem; 141 - Rod body; 142 - Rod cap; 150 - Overflow channel; 151 - First overflow hole; 152 - Second overflow hole. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] Referring to Figure 1 , the automatic liquid injection and drainage valve 100 in the embodiment of the present utility model may include a valve seat 110, a valve body 120, an elastic reset member 130 and a valve stem 140. Among them, one end of the elastic reset member 130 is connected to the valve seat 110, and the other end is connected to the valve body 120. Figure 1The arrow in it indicates the telescopic direction of the elastic reset member. The elastic reset member 130 can be telescopic, so that the valve seat 110 and the valve body 120 approach or move away from each other. The valve stem 140 is located between the valve seat 110 and the valve body 120 to guide the telescopic movement of the elastic reset member 130, enabling the elastic reset member 130 to telescope along the arrangement direction of the valve seat 110 and the valve body 120.

[0040] The valve seat 110 is provided with a flow-through channel 150. When the elastic reset member 130 is in the first working position (i.e., the initial state), the flow-through channel 150 is in a conducting state, and the liquid can flow through the flow-through channel 150. When the elastic reset member 130 is compressed to the second working position, the valve body 120 can contact the valve seat 110, so that the valve body 120 blocks the flow-through channel 150, and the liquid cannot flow through the flow-through channel 150.

[0041] The automatic liquid injection and drainage valve 100 in this embodiment can be applied to liquid cooling technology. Specifically, in combination with Figure 1 and Figure 2 , the automatic liquid injection and drainage valve 100 is connected to the electronic device 20, and the flow-through channel 150 is used to connect the inside and outside of the electronic device 20, so that when the electronic device 20 is immersed in the coolant, the coolant can flow into the electronic device 20 through the flow-through channel 150.

[0042] Refer to Figure 1 and Figure 2 , when the electronic device 20 has not been installed in the cabinet 10 yet, the elastic reset member 130 is in the first working position. At this time, the flow-through channel 150 is in a conducting state. When the electronic device 20 is immersed in the coolant in the cabinet 10, but the side of the valve body 120 facing away from the valve seat 110 has not contacted the inner wall of the cabinet 10 yet, the flow-through channel 150 is still in a conducting state. At this time, the coolant in the cabinet 10 can flow into the electronic device 20 through the flow-through channel 150.

[0043] Refer to Figure 1 and Figure 3 , when the side of the valve body 120 facing away from the valve seat 110 contacts the inner wall of the cabinet 10 and the electronic device 20 continues to move in the direction from the valve seat 110 to the valve body 120, the elastic reset member 130 is gradually compressed until the elastic reset member 130 is in the second working position, and the flow-through channel 150 is blocked by the valve body 120. The coolant in the cabinet 10 can no longer enter the electronic device 20 through the flow-through channel 150.

[0044] When the electronic device 20 fixed in the cabinet 10 is taken outwards, the electronic device 20 can be moved in the direction from the valve body 120 to the valve seat 110, so that the elastic reset member 130 gradually returns to the first working position. At this time, the flow-through channel 150 is conducted again, which is convenient for discharging the coolant inside the electronic device 20.

[0045] It can be understood that the automatic filling and discharge valve 100 in this embodiment realizes the automatic conduction and self-locking closure of the flow channel 150 by utilizing the telescopic effect of the elastic reset member 130. When installing or removing the electronic device 20, the automatic filling and discharge valve 100 can realize automatic filling and discharge, which is convenient and efficient to use.

[0046] In some embodiments, reference Figure 4 The valve seat 110 may include a top plate 111 and a first side plate 112, and the first side plate 112 is connected to the top plate 111. In this case, the valve seat 110 located on the side of the first side plate 112 away from the top plate 111 can be regarded as having a first opening 113. The flow passage 150 may include a first flow hole 151 disposed on the top plate 111, and the first flow hole 151 is connected to the first opening 113. When the automatic filling and discharge valve 100 is connected to the electronic device 20, the top plate 111 can be fixed to the housing of the electronic device 20, and the first flow hole 151 is connected to the inside of the electronic device 20.

[0047] When the electronic device 20 connected with the automatic filling and discharging valve 100 is immersed in the coolant, the coolant can flow from the first opening 113 to the first flow hole 151 , and then flow into the interior of the electronic device 20 from the first flow hole 151 .

[0048] Further, the valve body 120 may include a bottom plate 121 and a second side plate 122, the second side plate 122 is located on the side of the bottom plate 121 facing the valve seat 110, and the second side plate 122 is connected to the bottom plate 121, and cooperates with the bottom plate 121 to enclose a receiving space having a second opening 123 on one side. One end of the elastic return member 130 is connected to the top plate 111, and the other end is connected to the bottom plate 121. Under the telescopic action of the elastic return member 130, the first side plate 112 can extend into the receiving space through the second opening 123 or detach from the receiving space.

[0049] As an optional implementation scheme, when the elastic return member 130 is in the second working position, the first side plate 112 extends into the accommodating space, and the outer wall of the first side plate 112 can contact the inner wall of the second side plate 122. At this time, there is no gap or the gap is very small between the first side plate 112 and the second side plate 122, so that the coolant cannot flow from the space between the first side plate 112 and the second side plate 122 to the first opening 113, thereby achieving the blocking of the first opening 113 by the valve body 120, that is, achieving the blocking of the flow channel 150.

[0050] Alternatively, as another optional implementation, when the elastic resetting member 130 is in the second working position, the side of the first side plate 112 away from the top plate 111 can abut against the bottom plate 121. At this time, the top plate 111 and the bottom plate 121 can be regarded as being fixed to the opposite sides of the first side plate 112 respectively, so that the interior of the valve seat 110 forms a relatively enclosed space for the coolant in the cabinet 10, thereby realizing the blocking of the first opening 113 by the valve body 120.

[0051] In this implementation, when the first side plate 112 extends into the accommodating space, the outer wall of the first side plate 112 can also contact the inner wall of the second side plate 122, so as to further improve the sealing performance inside the valve seat 110, thereby enhancing the blocking effect on the flow-through channel 150.

[0052] In other embodiments, referring to Figure 5 , the flow-through channel 150 may include a first flow-through hole 151 provided on the top plate 111 and a second flow-through hole 152 provided on the first side plate 112, wherein the second flow-through hole 152 communicates with the first flow-through hole 151. When the electronic device 20 connected with the automatic liquid injection and drainage valve 100 is immersed in the coolant, the coolant can flow from the second flow-through hole 152 to the first flow-through hole 151, and can also flow to the first flow-through hole 151 through the first opening 113. It can be seen that when the second flow-through hole 152 is provided on the first side plate 112, the flow-through area can be increased, so that the coolant in the cabinet 10 can be better injected into the electronic device 20, or the coolant inside the electronic device 20 can be discharged more quickly.

[0053] As Figure 5 shown, the second flow-through holes 152 can be multiple, and the multiple second flow-through holes 152 can be distributed at intervals around the circumferential direction of the first side plate 112, which can ensure the flow-through area while also ensuring the overall strength of the valve body 120. In this embodiment, when the first side plate 112 extends into the accommodating space, the outer wall of the first side plate 112 contacts the inner wall of the second side plate 122, so that the second side plate 122 plays a role in blocking the second flow-through holes 152, preventing the coolant outside the valve body 120 from flowing into the second flow-through holes 152.

[0054] In addition, it is worth noting that in this embodiment, when the elastic resetting member 130 is in the second working position, the side of the second side plate 122 away from the bottom plate 121 should be higher than the side of the second flow-through hole 152 away from the bottom plate 121, so that the second side plate 122 can completely cover the second flow-through hole 152 to achieve a good blocking effect.

[0055] Furthermore, to improve the flow-through capacity of the valve seat 110, continue to refer to Figure 5The second flow hole 152 can also penetrate the end surface of the first side plate 112 away from the top plate 111 along the expansion and contraction direction of the elastic reset member 130. In this way, by designing the position of the second flow hole 152 on the second side plate 122, while ensuring that the second side plate 122 can completely cover the second flow hole 152, the flow area of the second flow hole 152 can be increased, thereby achieving faster liquid injection and liquid discharge.

[0056] For reference Figure 5 and Figure 6 One end of the valve stem 140 can be connected to the bottom plate 121, and the elastic return member 130 can be, for example, a spring, so that the elastic return member 130 can be sleeved on the valve stem 140, thereby facilitating the elastic return member 130 to be able to extend and retract along a preset direction, thereby ensuring that the first side plate 112 can extend into the accommodating space in the preset direction, so as to achieve a blocking effect on the flow channel 150.

[0057] Specifically, the valve stem 140 may include a stem body 141 and a stem cap 142, wherein the stem cap 142 is connected to one end of the stem body 141 away from the bottom plate 121. The top plate 111 may be provided with a mounting hole 1111, and one end of the stem body 141 connected to the stem cap 142 may be inserted into the mounting hole 1111. In this case, the stem cap 142 is located on a side of the top plate 111 away from the first side plate 112. The size of the stem cap 142 is larger than the size of the mounting hole 1111, so that the stem cap 142 cannot pass through the mounting hole 1111.

[0058] The rod body 141 may include a fixed portion 1412 and a telescopic portion 1411 arranged along the telescopic direction of the elastic return member 130, wherein the telescopic portion 1411 is sleeved on the fixed portion 1412, and the telescopic portion 1411 can move relative to the fixed portion 1412 along the arrangement direction of the two, thereby adjusting the overall length of the rod body 141.

[0059] In this embodiment, the rod cap 142 is connected to the telescopic portion 1411, and the fixed portion 1412 is located on the side of the telescopic portion 1411 away from the rod cap 142. In addition, the fixed portion 1412 is connected to the bottom plate 121, and the rod cap 142 is relatively fixed to the top plate 111. When the elastic reset member 130 is extended or retracted, the valve seat 110 can be driven to move, and at the same time, the telescopic portion 1411 moves relative to the fixed portion 1412.

[0060] When the elastic reset member 130 is in the second working position, the valve body 120 abuts against the inner wall of the cabinet 10, the valve seat 110 is relatively fixed to the electronic device 20, the elastic reset member 130 is compressed, and the overall length of the rod body 141 becomes shorter. When the valve body 120 is separated from the inner wall of the cabinet 10, the elastic reset member 130 drives the valve body 120 to move away from the valve seat 110, so that the telescopic portion 1411 moves relative to the fixed portion 1412, and the length of the rod body 141 becomes longer. At this time, although the valve body 120 is a free end, the elastic reset member 130 has an elastic force that makes the valve body 120 move closer to the valve seat 110, so as to keep the relative fixation between the valve body 120 and the valve seat 110.

[0061] In addition, when the rod cap 142 is provided, the first flow-through hole 151 can be arranged around the rod cap 142, and the first flow-through hole 151 can also be arranged around the circumferential direction of the rod body 141, so as to increase the area of the first flow-through hole 151 and further improve the flow-through capacity of the automatic liquid injection and drainage valve 100.

[0062] The rod body 141 and the bottom plate 121 can be in a detachable connection structure form, which is convenient for maintaining the automatic liquid injection and drainage valve 100. Exemplarily, threads can be provided at the end of the fixed portion 1411, and threaded holes are provided on the bottom plate 121. When assembling the valve rod 140 and the bottom plate 121, the threaded end of the rod body 141 can be screwed into the threaded hole, which is convenient for operation.

[0063] For the convenience of the operator to assemble the valve rod 140 and the bottom plate 121, as Figure 5 shown, the second side plate 122 is also provided with an installation handle 124, and the operator can hold the installation handle 124 to better fix the valve body 120.

[0064] Based on the same design concept, referring to Figure 3 again, the embodiment of the present invention can also provide an immersion liquid cooling system, which can include a cabinet 10, an electronic device 20, and the automatic liquid injection and drainage valve 100 introduced in the foregoing embodiment. Among them, the inside of the cabinet 10 is filled with a coolant, the electronic device 20 is immersed in the coolant, the valve seat 110 of the automatic liquid injection and drainage valve 100 is connected to the electronic device 20, the valve body 120 abuts against the inner wall of the cabinet 10, and when the electronic device 20 is fixed in the cabinet 10, the second elastic reset member 130 is compressed to the second working position.

[0065] It should be understood that Figure 3The immersion liquid cooling system shown is in a normal operating state. When the electronic device 20 is loaded into the cabinet 10 from outside the cabinet 10, in the initial state, the flow-through channel 150 of the automatic liquid injection and drainage valve 100 is in a conducting state, and the coolant in the cabinet 10 can enter the interior of the electronic device 20 through the flow-through channel 150. When the electronic device 20 needs to be removed from the cabinet 10, the valve body 120 loses the abutting effect of the inner wall of the cabinet 10, and under the action of the elastic resetting member 130, the valve body 120 moves away from the valve seat 110, so that the flow-through channel 150 is conducted again, enabling the coolant in the electronic device 20 to be discharged through the flow-through channel 150.

[0066] During specific implementation, with reference to Figure 3 and Figure 5 , the automatic liquid injection and drainage valve 100 can be arranged at the bottom of the electronic device 20. When the electronic device 20 is not fixed in the cabinet 10, under the action of gravity, the valve body 120 can stretch the elastic resetting member 130 to a certain extent, so that the valve body 120 is separated from the valve seat 110, ensuring that the flow-through channel 150 is conducted. When the electronic device 20 is fixed in the cabinet 10, the valve body 120 abuts against the cabinet bottom plate 11, and the flow-through channel 150 is blocked. When the electronic device 20 is removed from the cabinet 10, the valve body 120 is separated from the cabinet bottom plate 11, and under the action of gravity and elastic force, the valve body 120 can quickly move away from the valve seat 110 to realize the conduction of the flow-through channel 150.

[0067] Alternatively, with reference to Figure 6 and Figure 7 , the automatic liquid injection and drainage valve 100 can also be arranged on the side of the electronic device 20. When the electronic device 20 is not fixed in the cabinet 10, since the valve body 120 and the valve stem 140 are relatively fixed, the valve body 120 and the valve seat 110 are placed horizontally. In the initial state, the elastic resetting member 130 can be in a compressed state. At this time, since the valve body 120 is in a free state, under the elastic force of the elastic resetting member 130, the valve body 120 can be separated from the valve seat 110. When the electronic device 20 is fixed in the cabinet 10, the valve body 120 abuts against the cabinet side plate 12, and the flow-through channel 150 is blocked. When the electronic device 20 is removed from the cabinet 10, the valve body 120 is separated from the cabinet side plate 12, and under the action of the elastic force, the valve body 120 can be separated from the valve seat 110 again, thus realizing the conduction of the flow-through channel 150.

[0068] Or, with reference to Figure 6 and Figure 8, the automatic liquid injection and drainage valve 100 can also be arranged at the top of the electronic device 20. At this time, the valve seat 110 is located at the bottom of the valve body 120. When the electronic device 20 is not fixed in the cabinet 10, although the valve body 120 will compress the elastic reset member 130 and move towards the valve seat 110 under the action of gravity, the elastic force of the compressed elastic reset member 130 is greater than the gravity of the valve body 120, and the valve body 120 and the valve seat 110 can still be kept separated. When the electronic device 20 is fixed in the cabinet 10 but the top plate 13 of the cabinet is not covered, the side of the valve body 120 facing away from the valve seat 110 extends out of the cabinet 10. When the top plate 13 of the cabinet is covered, the top plate 13 of the cabinet can squeeze the valve body 120, so that the elastic reset member 130 is compressed, thereby realizing the blocking of the overflow channel 150. When the electronic device 20 is taken out of the cabinet 10, the top plate 13 of the cabinet is opened, and under the action of the elastic force, the valve body 120 can be separated from the valve seat 110 again, realizing the conduction of the overflow channel 150.

[0069] It should be noted that when the automatic liquid injection and drainage valve 100 is arranged at the top of the electronic device 20, when the electronic device 20 is fixed in the cabinet 10, the liquid level of the coolant should be higher than the surface of the first side plate 112 facing away from the electronic device 20, so as to facilitate the coolant to flow smoothly into the electronic device 20.

[0070] In practical applications, the installation position of the automatic liquid injection and drainage valve 100 can be designed according to the actual use requirements of the electronic device 20. Exemplarily, if the electronic device 20 is a liquid cooling distribution unit, the automatic liquid injection and drainage valve 100 can be arranged at the bottom of the liquid cooling distribution unit.

[0071] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. An automatic liquid injection and drainage valve, which is applied to an electronic device with immersion liquid cooling, and is characterized in that, The automatic liquid injection and drainage valve includes a valve seat, a valve body, and an elastic reset member; The valve seat is connected to the electronic device, and the valve seat is provided with a flow-through channel for communicating the interior and the exterior of the electronic device; One end of the elastic reset member is connected to the valve seat, and the other end of the elastic reset member is connected to the valve body; One side of the valve body facing away from the valve seat is used to contact the inner wall of the cabinet. When the elastic reset member is in the first working position, the flow-through channel is in a conducting state. When the elastic reset member is compressed to the second working position, the valve body contacts the valve seat to block the flow-through channel.

2. The automatic liquid injection and drainage valve according to claim 1, wherein The valve seat includes a top plate and a first side plate. The top plate is connected to the electronic device, and the first side plate is connected to the side of the top plate facing away from the electronic device. The valve seat has a first opening on the side of the first side plate facing away from the top plate; The flow-through channel includes a first flow-through hole provided in the top plate, and the first opening is communicated with the first flow-through hole; When the elastic reset member is in the second working position, the valve body is used to block the first opening.

3. The automatic liquid injection and drainage valve according to claim 2, characterized in that, The flow-through channel further includes a second flow-through hole provided in the first side plate, and the second flow-through hole is communicated with the first flow-through hole; When the elastic reset member is in the second working position, the valve body is further used to block the second flow-through hole.

4. The automatic liquid injection and drainage valve according to claim 3, characterized in that, The valve body includes a bottom plate and a second side plate. The second side plate is connected to the bottom plate to cooperate with the bottom plate to enclose a receiving space with a second opening on one side; The elastic reset member passes through the second opening and is connected to the bottom plate; The first side plate can extend into the receiving space from the second opening, and when the elastic reset member is in the second working position, the outer wall of the first side plate contacts the inner wall of the second side plate.

5. The automatic liquid injection and drainage valve according to claim 3, characterized in that, There are multiple second flow-through holes, and the second flow-through holes are distributed at intervals around the circumference of the first side plate.

6. The automatic liquid injection and drainage valve according to claim 1, wherein, It further includes a valve rod. The valve rod extends along the arrangement direction of the valve seat and the valve body. One end of the valve rod is connected to the valve body, and the elastic reset member is sleeved on the valve rod.

7. The automatic liquid injection and drainage valve according to claim 6, characterized in that, The valve rod includes a rod body and a rod cap. The first end of the rod body is connected to the valve seat; The valve seat is provided with a mounting hole, and the size of the mounting hole is smaller than the size of the rod cap. The rod cap is located on the side of the valve seat facing away from the valve body. The second end of the rod body passes through the mounting hole and is connected to the rod cap.

8. The automatic liquid injection and drainage valve according to claim 7, characterized in that, The connection between the valve rod and the valve body is detachable.

9. The automatic liquid injection and drainage valve according to claim 7, wherein The valve body is provided with a mounting handle.

10. An immersion liquid cooling system, characterized in that, It includes a cabinet, an electronic device, and the automatic liquid injection and drainage valve according to any one of claims 1 to 9; The cabinet is filled with a coolant, and the electronic device is immersed in the coolant; The valve seat of the automatic liquid injection and drainage valve is connected to the electronic device, and the valve body of the automatic liquid injection and drainage valve abuts against the inner wall of the cabinet so that the elastic reset member is in the second working position.

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