Explosion-proof valve and liquid cooling system

Abstract

The utility model provides an anti-explosion valve and a liquid cooling system, the anti-explosion valve comprises a valve main body, a floating piece and a gas outlet assembly, and the valve main body comprises a containing cavity, a first through hole and a second through hole; the floating part is movably connected with the valve body, the floating part is located in the containing cavity and divides the containing cavity into a first cavity and a second cavity which are communicated, the first through hole is communicated with the first cavity, the second through hole is communicated with the second cavity, and a connecting hole is formed in the side, close to the second cavity, of the floating part; the air outlet assembly is provided with an air outlet channel, penetrates through the second through hole, is connected with the valve main body and extends into the connecting hole; the anti-explosion valve comprises an open state and a closed state, in the open state, the air outlet channel communicates with the second cavity, and in the closed state, the air outlet assembly seals the second through hole. According to the anti-explosion valve, low-hydraulic-pressure exhaust and high-hydraulic-pressure sealing can be achieved, so that the requirements of a gas-liquid mixing system are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of valves, in particular to an explosion-proof valve and a liquid cooling system. BACKGROUND

[0002] The explosion-proof valve is usually designed to have low-pressure closing and high-pressure opening pressure relief states, and is used to provide safe and effective protection. In a gas-liquid mixed pipeline system, it is necessary to effectively remove accumulated gas when the internal liquid pressure of the pipeline is at a low level, and to close the pipeline to prevent high-pressure liquid from leaking out when the internal liquid pressure of the pipeline is high. However, the current explosion-proof valve cannot meet the requirements of low-pressure gas removal and high-pressure closing in the gas-liquid mixed pipeline system. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides an explosion-proof valve which can realize low-pressure gas removal and high-pressure closing to meet the requirements of a gas-liquid mixed system.

[0004] The present application also provides a liquid cooling system having the above explosion-proof valve.

[0005] According to the explosion-proof valve of the embodiments of the present application, the explosion-proof valve comprises a valve body, a floating element, and a gas outlet assembly.

[0006] The valve body comprises a receiving cavity, a first through hole, and a second through hole.

[0007] The floating element is movably connected to the valve body, and is located in the receiving cavity and separates the receiving cavity into a first chamber and a second chamber in communication. The first through hole is in communication with the first chamber, and the second through hole is in communication with the second chamber. The side of the floating element close to the second chamber is provided with a connecting hole.

[0008] The gas outlet assembly is provided with a gas outlet channel, and the gas outlet assembly is connected to the valve body by being arranged in the second through hole and extending into the connecting hole.

[0009] The explosion-proof valve comprises an open state and a closed state. In the open state, the gas outlet channel is in communication with the second chamber, and in the closed state, the gas outlet assembly closes the second through hole.

[0010] The floating element is configured to drive a part of the gas outlet assembly to move, so as to switch the explosion-proof valve between the open state and the closed state.

[0011] According to the explosion-proof valve provided in the embodiments of the present application, the floating member divides the accommodating cavity into the first chamber and the second chamber, the first through hole is used for connecting the liquid cooling channel, so that the gas-liquid mixture can enter the first chamber through the first through hole, the floating member can move relative to the valve body along with the rising and falling of the liquid level, thereby driving part of the air outlet assembly to move, realizing the opening and closing of the air outlet channel, and further realizing the switching of the open state and the closed state of the explosion-proof valve. In the open state, the air outlet channel is connected with the second chamber for discharging gas, and in the closed state, the air outlet assembly closes the second through hole for avoiding liquid leakage and maintaining the liquid pressure. Thus, the part of the air outlet assembly is arranged in the connecting hole, part of the air outlet assembly is driven to move by the floating member, the switching of the open state and the closed state is realized, and the pressure regulation requirement of the liquid cooling system can be met.

[0012] According to some embodiments of the present application, the air outlet assembly comprises a connecting member, an elastic member and an air outlet piece, part of the connecting member is arranged in the connecting hole, the connecting member is connected with the air outlet piece through the elastic member, the air outlet piece is arranged in the second through hole and connected with the valve body, and the air outlet piece is provided with the air outlet channel.

[0013] In the closed state, the connecting member abuts against the air outlet piece to close the air outlet channel.

[0014] According to some embodiments of the present application, the connecting member comprises a connecting part and a sealing part, one end of the connecting part is arranged in the connecting hole, the other end of the connecting part is connected with the sealing part, and the connecting part is connected with the elastic member.

[0015] In the closed state, the sealing part abuts against the air outlet piece to close the air outlet channel.

[0016] According to some embodiments of the present application, the explosion-proof valve further comprises a film paper, the film paper is connected with the air outlet assembly and covers the air outlet channel, and the film paper is configured to be air-permeable and water-resistant.

[0017] According to some embodiments of the present application, the explosion-proof valve further comprises a fixing member, the fixing member is connected with the valve body, the film paper is located between the air outlet assembly and the fixing member, one side of the film paper abuts against the air outlet assembly, and the opposite side of the film paper abuts against the fixing member.

[0018] The fixing member is provided with a third through hole, and the third through hole is configured to be in airflow communication with the air outlet channel.

[0019] According to some embodiments of the present application, the floating member is provided with a containing cavity, the containing cavity is connected with the connecting hole, and part of the air outlet assembly is located in the containing cavity.

[0020] According to some embodiments of the present application, the floating member is provided with a flow guide through groove, the outer peripheral wall of the floating member abuts against the cavity wall of the accommodating cavity, one end of the flow guide through groove communicates with the first chamber, and the other end of the flow guide through groove communicates with the second chamber.

[0021] According to some embodiments of the present application, the valve body comprises a valve body and a cover body, the valve body and the cover body are detachably connected, the valve body and the cover body enclose the accommodating cavity, the first through hole is arranged on the valve body or the cover body, and the second through hole is arranged on the valve body or the cover body.

[0022] According to some embodiments of the present application, in the first direction, the floating member is movably connected with the valve body, in the second direction, the second through hole penetrates the cavity wall of the accommodating cavity, the air outlet assembly is arranged in the second through hole and extends to the second chamber, and the first direction is perpendicular to the second direction.

[0023] The liquid cooling system according to the embodiments of the present application comprises a liquid cooling body and the explosion-proof valve in any of the above embodiments, and the explosion-proof valve is connected with the liquid cooling body.

[0024] The liquid cooling system according to the embodiments of the present application has at least the following beneficial effects: by connecting the explosion-proof valve with the liquid cooling body, the air can be discharged to increase the pressure when the liquid pressure is low, and the pressure can be closed to keep the pressure when the liquid pressure is high, so that the liquid pressure of the liquid cooling system is more stable.

[0025] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0026] The present application will be further described below in conjunction with the drawings and embodiments, in which:

[0027] Figure 1 It is an exploded view of the explosion-proof valve according to the embodiments of the present application;

[0028] Figure 2 It is a structural schematic view of the explosion-proof valve according to the embodiments of the present application in an open state;

[0029] Figure 3 It is a structural schematic view of the explosion-proof valve according to the embodiments of the present application in a closed state;

[0030] Figure 4 It is a structural schematic view of the explosion-proof valve according to the embodiments of the present application.

[0031] Reference signs: valve body 100, first through hole 110, second through hole 120, accommodating cavity 130, first chamber 131, second chamber 132, valve body 140, cover body 150;

[0032] Floating member 200, connecting hole 210, accommodating cavity 220, flow guide through groove 230;

[0033] The air outlet assembly 300, the air outlet channel 310, the connecting piece 320, the connecting part 321, the sealing part 322, the elastic piece 330, and the air outlet piece 340;

[0034] The film paper 410, the fixing piece 420, the third through hole 421, the first sealing piece 430, and the second sealing piece 440. DETAILED DESCRIPTION

[0035] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar notations used throughout the drawings denote the same or similar elements or elements having the same or similar functions. The embodiments described below by reference to the accompanying drawings are exemplary and are for the purpose of explaining the present application only, and are not to be understood as limiting the present application.

[0036] In the description of the present application, it is to be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the upper, lower, front, rear, left, right, and the like is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and is not to indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is two or more, greater than, less than, more than, and the like are understood as not including the number, above, below, and the like are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0038] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, and the like should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0039] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The embodiments of the present application are described below in combination with the accompanying drawings:

[0041] With reference to Figures 1 to 3 The explosion-proof valve in the embodiments of the present application comprises a valve body 100, a floating element 200, and an air outlet assembly 300. The valve body 100 comprises a containing cavity 130, a first through hole 110, and a second through hole 120. The first through hole 110 is adapted to communicate with a liquid cooling channel of a liquid cooling body. A gas-liquid mixture in the liquid cooling channel can enter the containing cavity 130 through the first through hole 110. The floating element 200 is movably connected to the valve body 100. The floating element 200 is located in the containing cavity 130 and divides the containing cavity 130 into a first chamber 131 and a second chamber 132 in communication.

[0042] For example, the floating element 200 has a gap with the cavity wall of the containing cavity 130, or the floating element 200 is provided with a passage communicating the first chamber 131 and the second chamber 132. The first through hole 110 communicates with the first chamber 131, the second through hole 120 communicates with the second chamber 132, and the floating element 200 is provided with a connecting hole 210 on the side close to the second chamber 132. The air outlet assembly 300 is provided with an air outlet passage 310. The air outlet assembly 300 is connected to the valve body 100 by being arranged in the second through hole 120. For example, the outer peripheral wall of the air outlet assembly 300 abuts against the hole wall of the second through hole 120, and the two are transitionally fitted, or the air outlet assembly 300 is threadedly connected to the second through hole 120. In addition, the air outlet assembly 300 extends into the connecting hole 210, that is, part of the air outlet assembly 300 is contained in the second through hole 120, the second chamber 132, and the connecting hole 210.

[0043] If the cross-sectional area of the floating element 200 is smaller than the cross-sectional area of the first through hole 110, the floating element 200 can be loaded into the containing cavity 130 from the first through hole 110, the air outlet assembly 300 is arranged in the containing cavity 130 from the second through hole 120, and the air outlet assembly 300 is arranged in the connecting hole 210, so as to limit the floating element 200 in the containing cavity 130.

[0044] If the cross-sectional area of the floating element 200 is larger than the cross-sectional area of the first through hole 110, the floating element 200 can be made of a deformable material such as rubber and has a certain elastic deformation performance. The cross-sectional area of the floating element 200 is changed by extrusion, until the cross-sectional area of the floating element 200 is extruded to be smaller than the cross-sectional area of the first through hole 110. Then, the floating element 200 can be plugged into the containing cavity 130 from the first through hole 110, the air outlet assembly 300 is arranged in the containing cavity 130 from the second through hole 120, and the air outlet assembly 300 is arranged in the connecting hole 210, so as to realize the assembly of the explosion-proof valve.

[0045] With reference to Figures 1 to 3, the explosion-proof valve includes an open state and a closed state. In the open state, the gas outlet passage 310 is in communication with the second chamber 132, and the gas in the gas-liquid mixture can be sequentially discharged through the first through hole 110, the first chamber 131, the second chamber 132, and the gas outlet passage 310. In the closed state, the gas outlet assembly 300 closes the second through hole 120, for example, the outer peripheral wall of the gas outlet assembly 300 abuts against the hole wall of the second through hole 120, so as to realize the closure of the second through hole 120 by closing the gas outlet passage 310, thereby ensuring the sealing of the explosion-proof valve.

[0046] The floating member 200 moves relative to the valve body 100, and the hole wall of the connecting hole 210 abuts against the gas outlet assembly 300, so that the floating member 200 is configured to drive a part of the gas outlet assembly 300 to move, for example, a part of the gas outlet assembly 300 can be elastically deformed, and the movement of a part of the gas outlet assembly 300 can control the communication and disconnection between the gas outlet passage 310 and the second chamber 132. Alternatively, the gas outlet assembly 300 includes two parts connected in rotation, and the floating member 200 drives one part to move, so as to realize the opening and closure of the gas outlet passage 310. Thus, the floating member 200 can switch the explosion-proof valve between the open state and the closed state.

[0047] Referring to Figures 1 to 3 , specifically, the explosion-proof valve is vertically assembled in the liquid cooling body, the first chamber 131 is located below the floating member 200, and the second chamber 132 is located above the floating member 200. The gas-liquid mixture can enter the first chamber 131 through the first through hole 110, and if the hydraulic pressure is at a lower level, the liquid level in the first chamber 131 is lower, and if the hydraulic pressure is at a higher level, the liquid level in the first chamber 131 is higher. Thus, the floating member 200 can float up and down relative to the valve body 100 as the liquid level rises and falls, the floating member 200 rises, the opening of the gas outlet passage 310 gradually decreases until it is completely closed, and the floating member 200 descends, the opening of the gas outlet passage 310 gradually increases, thereby realizing the switching between the open state and the closed state.

[0048] The gas-liquid mixture enters the first chamber 131 through the first through hole 110, and the gas and the liquid can be separated in the first chamber 131, the gas floats up to the second chamber 132, and in the open state, the gas is discharged through the gas outlet passage 310, at this time, the second chamber 132 does not contain liquid, and liquid leakage can be avoided during exhaust. If the liquid level rises into the second chamber 132, the floating member 200 rises, switches the explosion-proof valve to the closed state, and avoids liquid leakage.

[0049] It should be noted that the space sizes of the first chamber 131 and the second chamber 132 change with the floating of the floating member 200. The floating member 200 occupies a part of the space of the containing cavity 130. When the floating member 200 floats upward, the space below the floating member 200 increases and the space above the floating member 200 decreases, that is, the space of the first chamber 131 increases and the space of the second chamber 132 decreases. When the floating member 200 sinks downward, the space above the floating member 200 increases and the space below the floating member 200 decreases, that is, the space of the first chamber 131 decreases and the space of the second chamber 132 increases. The first chamber 131 and the second chamber 132 are both parts of the containing cavity 130, and the sum of the spaces of the first chamber 131 and the second chamber 132 does not change during the floating of the floating member 200.

[0050] With reference to Figures 1 to 3 In some embodiments, the explosion-proof valve comprises a first sealing member 430. The inner circumferential wall of the second through hole 120 is provided with a protrusion. The first sealing member 430 is in abutment with the protrusion on one side along the axial direction of the second through hole 120, and is in abutment with the air outlet assembly 300 on the other side. The first sealing member 430 can be a sealing structure made of rubber or the like, which is beneficial to sealing the gap between the air outlet assembly 300 and the hole wall of the second through hole 120, thereby improving the sealing performance of the explosion-proof valve.

[0051] With reference to Figures 1 to 3 In some embodiments, the air outlet assembly 300 comprises a connecting member 320, an elastic member 330 and an air outlet member 340. A part of the connecting member 320 penetrates into the connecting hole 210. The connecting member 320 is connected to the air outlet member 340 through the elastic member 330, so that the floating member 200 can drive the connecting member 320 to move. The air outlet member 340 is arranged in the second through hole 120 and connected to the valve body 100. The connection between the air outlet member 340 and the valve body 100 can be a transition fit or a threaded connection. The air outlet member 340 is provided with an air outlet channel 310. The opening and closure of the air outlet channel 310 can realize the opening and closure of the second through hole 120, thereby realizing the switching between the open state and the closed state of the explosion-proof valve.

[0052] For example, the elastic member 330 is a spring, one end of the elastic member 330 is connected with the connecting member 320, and the other end of the elastic member 330 is connected with the air outlet member 340. In the closed state, the axis of the elastic member 330 is a straight line, the connecting member 320 abuts against the air outlet member 340 to close the air outlet channel 310. The connecting member 320 is connected with the air outlet member 340 through the elastic member 330, and the elastic member 330 can generate bending deformation to ensure that the floating member 200 drives the connecting member 320 to move downward, so that the air outlet channel 310 is opened, and the explosion-proof valve is switched to the open state. The floating member 200 floats up, and the connecting member 320 moves upward until covering the opening of the air outlet channel 310 through the elastic rebound of the elastic member 330 and / or the driving of the floating member 200, and the explosion-proof valve is switched to the closed state. Thus, the explosion-proof valve in the present application can adaptively switch between the open state and the closed state with the rise and fall of the liquid level, thereby meeting the needs of the liquid cooling system to exhaust when the liquid pressure is low and to seal when the liquid pressure is high.

[0053] Referring to Figures 1 to 3 In some embodiments, the connecting member 320 includes a connecting part 321 and a sealing part 322. One end of the connecting part 321 penetrates into the connecting hole 210, and the connecting part 321 is used to abut against the hole wall of the connecting hole 210. The other end of the connecting part 321 is connected with the sealing part 322, and the connecting part 321 is also connected with the elastic member 330, which is used to ensure that the floating member 200 can drive the connecting part 321 to move, and the connecting part 321 can drive the sealing part 322 to move synchronously, so as to change the degree of covering the air outlet channel 310 by the sealing part 322, and further realize the opening and closing of the air outlet channel 310.

[0054] The sealing part 322 can generate elastic deformation. For example, the sealing part 322 can be made of silica gel, rubber or the like. In the closed state, the sealing part 322 abuts against the air outlet member 340 to close the air outlet channel 310, and the sealing part 322 is more closely attached to the air outlet member 340, which is beneficial to further improve the sealing performance of the explosion-proof valve.

[0055] Referring to Figures 1 to 3 In other embodiments, the connecting part 321 is provided with a sealing cavity near one end of the air outlet member 340, one side of the sealing cavity facing the air outlet member 340 is provided with a cavity opening, the sealing part 322 is accommodated in the sealing cavity, and the cross section of the air outlet member 340 near one end of the connecting part 321 is smaller than the cross section of the sealing cavity. Thus, in the sealed state, the air outlet member 340 abuts against the sealing part 322, the sealing part 322 generates elastic deformation, and a part of the air outlet member 340 is located in the sealing cavity. Therefore, the abutment between the air outlet member 340 and the sealing part 322 is more stable and reliable.

[0056] Referring to Figures 1 to 3In some embodiments, the explosion-proof valve further comprises a film paper 410 connected with the air outlet assembly 300 and covering the air outlet channel 310. The film paper 410 can be connected with the air outlet assembly 300 in a manner such as welding or bonding. The film paper 410 is configured to be air-permeable and water-resistant. For example, the film paper 410 can be made of graphene oxide, polytetrafluoroethylene or the like. The film paper 410 can prevent liquid leakage and prevent dust and other impurities from entering the accommodation cavity 130, thereby keeping the interior of the accommodation cavity 130 clean.

[0057] With reference to Figures 1 to 3 In some embodiments, the explosion-proof valve further comprises a fixing member 420 connected with the valve body 100. The film paper 410 is located between the air outlet assembly 300 and the fixing member 420. One side of the film paper 410 abuts against the air outlet assembly 300, and the opposite side of the film paper 410 abuts against the fixing member 420. The fixing member 420 and the air outlet assembly 300 cooperate to fix the film paper 410. The fixing member 420 is provided with a third through hole 421 configured to be in airflow communication with the air outlet channel 310. For example, the third through hole 421 is blocked by the film paper 410. The film paper 410 allows gas to pass through but blocks liquid. Therefore, the gas in the air outlet channel 310 can pass through the film paper 410 and enter the third through hole 421, so that the third through hole 421 is in airflow communication with the air outlet channel 310.

[0058] With reference to Figures 1 to 3 In other embodiments, at least a portion of the fixing member 420 is located in the second through hole 120. The fixing member 420 is threadedly connected with the valve body 100. In addition to fixing the film paper 410, the structure of the explosion-proof valve is more compact. In addition, the threaded connection facilitates disassembly and assembly, making it easier to replace the film paper 410.

[0059] With reference to Figures 1 to 3 In other embodiments, the third through hole 421 has a cross-sectional shape of a straight line or a cross. The fixing member 420 is easier to disassemble and assemble.

[0060] With reference to Figures 2 to 4 In other embodiments, at least one of the fixing member 420 and the air outlet assembly 300 is provided with a positioning groove. The film paper 410 is located in the positioning groove and is positioned and installed in the positioning groove, thereby preventing the film paper 410 from moving and ensuring that the film paper 410 covers the air outlet channel 310.

[0061] With reference to Figures 1 to 3In some embodiments, the floating member 200 is provided with a receiving cavity 220, which is in communication with the connecting hole 210, and a part of the air outlet assembly 300 is located in the receiving cavity 220, the receiving cavity 220 is used for accommodating the air outlet assembly 300, thereby reducing the space occupation of the floating member 200, and making the structure of the explosion-proof valve more compact.

[0062] With reference to Figures 1 to 3 In some embodiments, the floating member 200 is provided with a flow guide channel 230, which penetrates the floating member 200, and the outer peripheral wall of the floating member 200 is in sliding abutment with the cavity wall of the receiving cavity 130, so that the floating member 200 can slide relative to the valve body 100 and provide guidance for the movement of the floating member 200, and the sliding of the floating member 200 relative to the valve body 100 is more stable. One end of the flow guide channel 230 is in communication with the first chamber 131, and the other end of the flow guide channel 230 is in communication with the second chamber 132, so that the gas can enter the second chamber 132 from the first chamber 131 through the flow guide channel 230, and then be discharged from the air outlet passage 310 in the open state.

[0063] For example, the outer peripheral wall of the floating member 200 is provided with the flow guide channel 230, and the groove wall of the flow guide channel 230 cooperates with the cavity wall of the receiving cavity 130 to define a flow guide passage, through which the gas and / or liquid can pass, for example, the gas can enter the second chamber 132 from the first chamber 131 through the flow guide passage.

[0064] With reference to Figures 1 to 3 In other embodiments, the flow guide channel 230 can be two, three, four or the like, for example, a plurality of flow guide channels 230 are distributed around the outer peripheral wall of the floating member 200 at intervals, and the number and position of the flow guide channels 230 can be adjusted according to requirements, and the increase in the number of flow guide channels 230 is beneficial to improve the exhaust efficiency of the explosion-proof valve.

[0065] With reference to Figures 1 to 3 In other embodiments, the valve body 100 includes a valve body 140 and a cover body 150, and the valve body 140 and the cover body 150 are detachably connected, and the valve body 140 and the cover body 150 enclose the receiving cavity 130, which is convenient for the installation of the floating member 200 and the air outlet assembly 300, and also facilitates the cleaning of the receiving cavity 130. The first through hole 110 is formed in the valve body 140 or the cover body 150, and the second through hole 120 is formed in the valve body 140 or the cover body 150.

[0066] For example, the valve body 140 is provided with the first through hole 110, and the cover body 150 is provided with the second through hole 120.

[0067] Alternatively, the cover body 150 is provided with the first through hole 110, and the valve body 140 is provided with the second through hole 120.

[0068] Alternatively, the valve body 140 is provided with the first through hole 110 and the second through hole 120.

[0069] Alternatively, the cover 150 is provided with the first through hole 110 and the second through hole 120.

[0070] With reference to Figures 1 to 3 In some embodiments, the explosion-proof valve further comprises a second sealing member 440, one side of the second sealing member 440 abutting against the valve body 140, and the other side of the second sealing member 440 abutting against the cover 150. The second sealing member 440 can be a rubber sealing ring or other sealing structure, which is used to seal the gap between the valve body 140 and the cover 150, thereby improving the sealing performance of the accommodation cavity 130 and effectively preventing liquid leakage at the gap between the valve body 140 and the cover 150.

[0071] With reference to Figures 1 to 3 In some embodiments, along the first direction, the floating member 200 is movably connected to the valve body 100, and along the second direction, the second through hole 120 penetrates the cavity wall of the accommodation cavity 130, and the air outlet assembly 300 is arranged in the second through hole 120 and extends to the second cavity 132. The first direction is perpendicular to the second direction, i.e., the extension direction of the air outlet assembly 300 is perpendicular to the moving direction of the floating member 200 relative to the valve body 100. This is beneficial to fully utilize the space in the accommodation cavity 130 and improve the moving stroke of the floating member 200, thereby making the structure of the explosion-proof valve more compact while ensuring the state switching of the explosion-proof valve.

[0072] With reference to Figures 1 to 3 In some embodiments, along the first direction, the floating member 200 is provided with a receiving cavity 220 and a connecting hole 210 at one end of the floating member 200 facing the second cavity 132, and the connecting hole 210 is in communication with the receiving cavity 220. In the closed state, along the second direction, the receiving cavity 220 is located at one side of the floating member 200 close to the second through hole 120, and the connecting hole 210 is located at one side of the floating member 200 away from the second through hole 120. Thus, compared with arranging the connecting hole 210 at one side of the floating member 200 close to the second through hole 120, it is more labor-saving to drive a part of the air outlet assembly 300 to move, and the explosion-proof valve is easier to switch between the open state and the closed state.

[0073] For example, a part of the air outlet assembly 300 can be elastically deformed, and the floating member 200 moves relative to the valve body 100 to drive the air outlet assembly 300 to be elastically deformed, so as to open or close the air outlet passage 310. The longer the air outlet assembly 300 extends into the second cavity 132, the longer the driving force arm is, thereby being more labor-saving.

[0074] With reference to Figures 1 to 3 Figures 1 to 3The liquid cooling system of the embodiments of the present application comprises a liquid cooling body and the explosion-proof valve in any of the embodiments described above, the explosion-proof valve is connected with the liquid cooling body, for example, the liquid cooling body comprises a liquid cooling channel, the liquid cooling channel has cooling liquid therein, the explosion-proof valve is in communication with the liquid cooling channel, the explosion-proof valve can exhaust when the liquid pressure level in the liquid cooling channel is low, and can be closed when the liquid pressure level in the liquid cooling channel is high, so as to avoid leakage of high-pressure liquid, thereby meeting the liquid pressure requirement of the liquid cooling system.

[0075] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the present application. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An explosion relief valve, characterized in that The valve body comprises a containing cavity, a first through hole and a second through hole; The float is movably connected with the valve body, is located in the containing cavity, and separates the containing cavity into a first chamber and a second chamber in communication. The first through hole is in communication with the first chamber, and the second through hole is in communication with the second chamber. The float is provided with a connecting hole on one side close to the second chamber; The air outlet assembly is provided with an air outlet channel, is connected with the valve body by being arranged in the second through hole, and extends into the connecting hole; The explosion-proof valve comprises an open state and a closed state. In the open state, the air outlet channel is in communication with the second chamber. In the closed state, the air outlet assembly closes the second through hole. The float is configured to drive a part of the air outlet assembly to move, so as to switch the explosion-proof valve between the open state and the closed state. The air outlet assembly comprises a connecting piece, an elastic piece and an air outlet piece. A part of the connecting piece is arranged in the connecting hole. The connecting piece is connected with the air outlet piece through the elastic piece. The air outlet piece is arranged in the second through hole and connected with the valve body. The air outlet piece is provided with the air outlet channel.

2. The explosion relief valve of claim 1, wherein In the closed state, the connecting piece abuts against the air outlet piece to close the air outlet channel. The connecting piece comprises a connecting portion and a sealing portion. One end of the connecting portion penetrates into the connecting hole, and the other end of the connecting portion is connected with the sealing portion. The connecting portion is connected with the elastic piece.

3. The explosion relief valve of claim 2, wherein, In the closed state, the sealing portion abuts against the air outlet piece to close the air outlet channel. The explosion-proof valve further comprises a film paper. The film paper is connected with the air outlet assembly and covers the air outlet channel. The film paper is configured to be air-permeable and water-resistant.

4. The explosion relief valve of claim 1, wherein The explosion-proof valve further comprises a fixing piece. The fixing piece is connected with the valve body. The film paper is located between the air outlet assembly and the fixing piece. One side of the film paper abuts against the air outlet assembly, and the opposite side of the film paper abuts against the fixing piece.

5. The explosion relief valve of claim 4, wherein, The fixing piece is provided with a third through hole. The third through hole is configured to be in air flow communication with the air outlet channel. The float is provided with a containing cavity. The containing cavity is in communication with the connecting hole. A part of the air outlet assembly is located in the containing cavity.

6. The explosion relief valve of claim 1, wherein The float is provided with a flow guide through groove. The outer peripheral wall of the float abuts against the cavity wall of the containing cavity. One end of the flow guide through groove is in communication with the first chamber, and the other end of the flow guide through groove is in communication with the second chamber.

7. The explosion relief valve of claim 1, wherein The valve body comprises a valve body and a cover. The valve body and the cover are detachably connected. The valve body and the cover enclose the containing cavity. The first through hole is arranged in the valve body or the cover. The second through hole is arranged in the valve body or the cover.

8. The explosion relief valve of claim 1, wherein, ​ 9. The explosion relief valve of claim 1, wherein, In a first direction, the float is movably connected with the valve body, in a second direction, the second through hole penetrates a cavity wall of the accommodating cavity, the air outlet assembly is arranged in the second through hole and extends to the second cavity, and the first direction is perpendicular to the second direction.

10. A liquid cooling system, characterized by, Comprising: a liquid cooling body; the explosion-proof valve according to any one of claims 1 to 9, which is connected with the liquid cooling body.

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