Gas transfer valve and hydrogen energy fuel cell device

Abstract

The utility model provides a gas transfer valve and a hydrogen energy fuel cell device, and relates to the technical field of fluid control. The gas switching valve comprises a first valve body and a second valve body, the first valve body comprises a first gas flow channel and a first flow stopping assembly, and the first flow stopping assembly controls the state of the first valve body by judging whether the first flow stopping assembly abuts against the first gas flow channel or not. The second valve body comprises a second flow stopping assembly and a second gas flow channel, and the second flow stopping assembly controls the state of the second valve body by judging whether the second flow stopping assembly abuts against the second gas flow channel or not. According to the structure, the first flow stopping assembly and the second flow stopping assembly are used for controlling the conduction state and the cut-off state of the first gas flow channel and the second gas flow channel, and through the synergistic effect of the dismounting assembly and the first gas flow channel, the number of control switches can be effectively reduced, operation steps are simplified, and cost is reduced. The first valve body and the second valve body can be quickly butted or disassembled, meanwhile, the possibility of gas leakage can be effectively reduced, and the gas transmission efficiency and the operation safety are improved.

Description

Technical Field

[0001] This application relates to the field of fluid control technology, and more specifically, to a gas transfer valve and a hydrogen fuel cell device. Background Technology

[0002] In hydrogen fuel cell devices, hydrogen cylinders are interchangeable components, especially in low-pressure, small-sized cylinder applications, making interchangeability an essential trend. However, existing adapter valve devices on the market present some challenges and problems in achieving rapid cylinder replacement.

[0003] Existing transfer valve devices typically consist of multiple valve bodies connected by pipes and equipped with multiple control switches to manage leaks during disassembly. Because this structure involves a combination of multiple valves, operators must perform a series of complex procedures to replace the hydrogen cylinder during disassembly and replacement. This process is cumbersome and carries a high risk of pressure release and leakage, compromising safety. Utility Model Content

[0004] In order to at least overcome the above-mentioned deficiencies in the prior art, the purpose of this application is to provide a gas transfer valve and a hydrogen fuel cell device.

[0005] In a first aspect, embodiments of this application provide a gas transfer valve, which includes a first valve body and a second valve body;

[0006] The first valve body includes a first housing, a first gas flow channel, a first flow-stopping component, a first port located on opposite sides of the first housing, and a first docking end. The first gas flow channel and the first flow-stopping component are located inside the first housing. The first flow-stopping component is located between the first docking end and the first port. The gas flow channel is located between the first flow-stopping component and the first housing. The first flow-stopping component controls the state of the first valve body by whether it abuts against the first gas flow channel.

[0007] The second valve body includes a second housing, a second flow-stopping assembly, a disassembly and assembly assembly, and a second port and a second mating end located on both sides of the second housing. The second housing includes a second gas flow channel disposed between the second port and the second mating end. The disassembly and assembly assembly is located on the side of the second housing closer to the second mating end. The second flow-stopping assembly is at least partially located in the second gas flow channel. The second flow-stopping assembly controls the state of the second valve body by whether or not it abuts against the second gas flow channel.

[0008] The gas transfer valve includes an on state and a off state. In the on state, the first docking end is aligned and accommodated in the second docking end, the disassembly and assembly assembly engages with the first gas flow channel, the first flow-stopping assembly interacts with the second flow-stopping assembly, the first flow-stopping assembly separates from the first gas flow channel, the second flow-stopping assembly separates from the second gas flow channel, and the first gas flow channel and the second gas flow channel are connected.

[0009] In the cut-off state, the first docking end and the second docking end are separated, the first flow-stopping component abuts against the first gas flow channel, and the second flow-stopping component abuts against the second gas flow channel.

[0010] In one possible implementation, the first housing includes a first sub-housing;

[0011] The first flow-stopping assembly includes a first elastic element and a flow-stopping element. The first sub-housing has a first chamber. The first elastic element is housed in the first chamber. The flow-stopping element includes a flow-stopping limiting end. The flow-stopping limiting end is connected to the first elastic element and located in the first chamber. In a cross-section perpendicular to the extension direction of the first gas flow channel, the cross-sectional dimension of the flow-stopping limiting end is larger than the cross-sectional dimension of the first gas flow channel.

[0012] In one possible implementation, the flow stop further includes a flow stop rod connected to the flow stop limiting end, the flow stop rod being located within the first gas flow channel and extending from the first port toward the first docking end;

[0013] The first housing also includes a second sub-housing that is coaxially disposed with the first sub-housing;

[0014] A second chamber is formed between the second sub-shell and the first gas flow channel. In the conductive state, the second chamber is used to accommodate the second docking end.

[0015] In one possible implementation, the second housing includes a third sub-housing and a fourth sub-housing;

[0016] The third sub-shell has a third chamber, and the fourth sub-shell has a fourth chamber, wherein the third chamber and the fourth chamber are connected via the second gas flow channel, and the second flow-stopping assembly is located in the fourth chamber and the second gas flow channel;

[0017] In the conductive state, the third sub-shell is housed within the second chamber, at least a portion of the first gas flow channel and the flow-stopping rod are housed within the third chamber, at least a portion of the second flow-stopping assembly interacts with the flow-stopping rod, the flow-stopping limiting end is separated from the first gas flow channel, the second flow-stopping assembly is separated from the second gas flow channel, and the first gas flow channel and the second gas flow channel are connected.

[0018] In one possible implementation, the disassembly assembly includes a movable block, a retaining ring, a steel ball, and a third elastic element;

[0019] The movable block is located on the outer wall of the third sub-shell, the third elastic member is located between the movable block and the third sub-shell, and the end of the movable block away from the fourth sub-shell also includes a receiving step, wherein the movable block moves along the extension direction of the second gas flow channel based on the third elastic member;

[0020] The steel ball is movably disposed in the receiving through hole of the third chamber, and the retaining spring is located at the end of the third sub-housing away from the second gas flow channel;

[0021] The outer wall of the first gas flow channel is provided with a locking groove. In the conductive state, the steel ball is at least partially located in the locking groove, and the retaining spring abuts against the receiving step.

[0022] In one possible implementation, the second flow-stopping assembly includes a pin and a second elastic element, wherein the second elastic element is located within the fourth chamber;

[0023] The ejector pin includes an ejector pin body and an ejector pin limiting end. The ejector pin limiting end is connected to the second elastic element. The ejector pin body passes through the second gas flow channel and extends relative to the second gas flow channel. In a cross-section perpendicular to the extension direction of the second gas flow channel, the cross-sectional dimension of the ejector pin body is smaller than the cross-sectional dimension of the second gas flow channel, and the cross-sectional dimension of the ejector pin limiting end is larger than the cross-sectional dimension of the second gas flow channel.

[0024] In one possible implementation, the second flow-stopping component further includes a locking component, which includes a transition nut, a transmission screw, and a locking block;

[0025] The transition nut is threadedly connected to the inner wall of the fourth chamber. The transmission screw includes a first end and a second end that are arranged opposite to each other. The first end of the transmission screw is threadedly connected to the inner wall of the transition nut, and the second end of the transmission screw is threadedly connected to the locking block. The second elastic element is connected to the first end of the transmission screw.

[0026] In one possible implementation, the locking assembly further includes a nut assembly;

[0027] The nut assembly is connected to the portion of the transmission screw that extends relative to the locking block.

[0028] In one possible implementation, the first sub-housing further includes a threaded structure on its surface, the threaded structure being disposed close to the second sub-housing;

[0029] The second port also includes a threaded hole, which communicates with the fourth chamber.

[0030] Secondly, embodiments of this application also provide a hydrogen fuel cell device, including a first gas storage device, a second gas storage device, and a gas transfer valve as described in any one of the first aspects, wherein the first gas storage device is connected to the first valve body, and the second gas storage device is connected to the second valve body.

[0031] Based on any of the above aspects, the gas transfer valve and hydrogen fuel cell device provided in this application embodiment include a first valve body and a second valve body. The first valve body includes a first gas flow channel and a first flow-stopping component, the first flow-stopping component controlling the state of the first valve body by whether or not it abuts against the first gas flow channel. The second valve body includes a second flow-stopping component and a second gas flow channel, the second flow-stopping component controlling the state of the second valve body by whether or not it abuts against the second gas flow channel. In the above structure, the first and second flow-stopping components control the conduction and cut-off states of the first and second gas flow channels. Through the synergistic effect of the disassembly and assembly components and the first gas flow channel, the number of control switches can be effectively reduced, operation steps simplified, and the first and second valve bodies can be quickly connected or disassembled, reducing the operational difficulty for operators. Simultaneously, it can effectively reduce the possibility of gas leakage and improve gas transmission efficiency and operational safety. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A possible structural diagram of the gas transfer valve provided in this application. Figure 1 ;

[0034] Figure 2 A possible structural diagram of the gas transfer valve provided in this application. Figure 2 ;

[0035] Figure 3 A possible structural diagram of the gas transfer valve provided in this application. Figure 3 ;

[0036] Figure 4 A possible structural diagram of the gas transfer valve provided in this application. Figure 4 ;

[0037] Figure 5 A possible structural diagram of the gas transfer valve provided in this application. Figure 5 ;

[0038] Figure 6 A possible structural diagram of the gas transfer valve provided in this application. Figure 6 ;

[0039] Figure 7 A possible structural diagram of the hydrogen fuel cell device provided in this application. Figure 1 ;

[0040] Figure 8 A possible structural diagram of the hydrogen fuel cell device provided in this application. Figure 2 . Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] It should be noted that, where there is no conflict, different features in the embodiments of this application can be combined with each other.

[0047] To address the problems in the existing technology, please refer to... Figure 1 and Figure 2 This application provides a gas transfer valve 10, which may include a first valve body 100 and a second valve body 200. The first valve body 100 may be connected to a first gas storage device, and the second valve body 200 may be connected to a second gas storage device. For example, the first valve body 100 may be connected to a gas cylinder, and the second valve body 200 may be connected to an electric stack or a gas dispensing mechanism.

[0048] The first valve body 100 may include a first housing 110, a first gas flow channel 120, a first flow-stopping component 130, a first port 110A located on opposite sides of the first housing 110, and a first mating end 100B, wherein the central axis of the first port 110A coincides with the central axis of the first mating end 100B. The first gas flow channel 120 and the first flow-stopping component 130 are located within the first housing 110. The first flow-stopping component 130 is located between the first mating end 100B and the first port 110A. The gas flow channel is located between the first flow-stopping component 130 and the first housing 110. The first flow-stopping component 130 controls the state of the first valve body 100 by whether or not it abuts against the first gas flow channel 120. Specifically, the first valve body 100 includes an on state and a off state. When the first flow-stopping component 130 abuts against the end face of the first gas flow channel 120, the first valve body 100 is in the off state. When the first flow-stopping component 130 separates from the end face of the first gas flow channel 120, the first valve body 100 is in the on state.

[0049] The second valve body 200 may include a second housing 210, a second flow-stopping assembly 230, a disassembly / assembly assembly 240, and second ports 200A and second mating ends 200B located on both sides of the second housing 210. The disassembly / assembly assembly 240 is located on the side of the second housing closer to the second mating end 200B, and is used to enable quick docking or disassembly of the first valve body 100 and the second valve body 200. The second housing 210 includes a second gas flow channel 220 disposed between the second port 200A and the second mating end 200B. Preferably, the second port 200A and the second mating end 200B are located on adjacent sides of the second housing 210, i.e., the central axis of the second port 200A is perpendicular to the central axis of the second mating end 200B. The second flow-stopping assembly 230 is at least partially located in the second gas flow channel 220, and controls the state of the second valve body 200 by whether or not it abuts against the second gas flow channel 220. Specifically, the second valve body 200 includes an on state and a off state. When the second flow-stopping component 230 abuts against the end face of the second gas flow channel 220, the second valve body 200 is in the off state. When the second flow-stopping component 230 separates from the end face of the second gas flow channel 220, the second valve body 200 is in the on state.

[0050] Gas transfer valve 10 includes an on state and an off state; please refer to the relevant documentation again for details. Figure 1 and Figure 2 , Figure 1 Gas transfer valve 10 in the off state. Figure 2This is the gas transfer valve 10 in the open state. In the open state, the first mating end 100B is aligned and accommodated within the second mating end 200B. The disassembly / assembly assembly 240 engages with the first gas flow channel 120. The first flow-stopping assembly 130 and the second flow-stopping assembly 230 interact, separating the first flow-stopping assembly 130 from the first gas flow channel 120 and the second flow-stopping assembly 230 from the second gas flow channel 220, thus connecting the first gas flow channel 120 and the second gas flow channel 220. In the closed state, the first mating end 100B and the second mating end 200B are separated. The first flow-stopping assembly 130 abuts against the first gas flow channel 120, and the second flow-stopping assembly 230 abuts against the second gas flow channel 220.

[0051] Specifically, during gas transfer, the first docking end 100B and the second docking end 200B can be connected to make the first valve body 100 and the second valve body 200 in a conductive state. Gas in the first gas storage device can enter the gas transfer valve 10 through the first port 110A, and then sequentially enter the second gas storage device through the first gas flow channel 120, the second gas flow channel 220, and the second port 200A. When gas transfer is not required, the first docking end 100B and the second docking end 200B can be disconnected to make the first valve body 100 and the second valve body 200 in a cut-off state. At this time, the first flow-stopping component 130 and the second flow-stopping component 230 can respectively close the first gas flow channel 120 and the second gas flow channel 220, thereby preventing gas leakage from the gas storage device.

[0052] In this embodiment, the first flow-stopping component 130 and the second flow-stopping component 230 control the conduction and cut-off states of the first gas flow channel 120 and the second gas flow channel 220. Through the synergistic effect of the disassembly and assembly component 240 and the first gas flow channel 120, the number of control switches can be effectively reduced, the first valve body 100 and the second valve body 200 can be quickly connected or quickly disassembled, the operation steps can be simplified, the operation difficulty of the operator can be reduced, the possibility of gas leakage can be reduced, and the gas transmission efficiency and operation safety can be improved.

[0053] In some possible embodiments, please refer to Figure 3 The first housing 110 may include a first sub-housing 111 and a second sub-housing 112 coaxially disposed with the first sub-housing 111, and the second housing 210 may include a third sub-housing 211 and a fourth sub-housing 212.

[0054] The first flow-stopping assembly 130 includes a first elastic member 131 and a flow-stopping member 132. A first chamber 110a is located within the first sub-housing 111. The first elastic member 131 is housed within the first chamber 110a. Exemplarily, the first elastic member 131 includes, but is not limited to, a spring. The flow-stopping member 132 includes a flow-stopping limiting end 1321, which is connected to the first elastic member 131 and located within the first chamber 110a. Specifically, in a cross-section perpendicular to the extending direction of the first gas flow channel 120, the cross-sectional dimension of the flow-stopping limiting end 1321 is larger than the cross-sectional dimension of the first gas flow channel 120. Specifically, when the first valve body 100 is in the closed state, the first elastic element 131 can apply an elastic force from the first port 110A toward the first docking end 100B to the flow stop element 132. At this time, the flow stop limiting end 1321 abuts against the first gas flow channel 120 under the action of the elastic force, thereby achieving the purpose of closing the first gas flow channel 120 and realizing one-way locking.

[0055] Furthermore, please refer to again Figure 3 The flow stopper 132 also includes a flow stop rod 1322 connected to the flow stop limiting end 1321. The flow stop rod 1322 is located in the first gas flow channel 120 and extends from the first port 110A toward the first docking end 100B. A second chamber 110b is formed between the second sub-housing 112 and the first gas flow channel 120. In the conductive state, the second chamber 110b is used to accommodate the second docking end 200B.

[0056] The third sub-shell 211 has a third chamber 210a, and the fourth sub-shell 212 has a fourth chamber 210b, wherein the third chamber 210a and the fourth chamber 210b are connected via a second gas flow channel 220, and the second flow-stopping assembly 230 is located in the fourth chamber 210b and the second gas flow channel 220.

[0057] In the conductive state, the third sub-shell 211 is housed within the second chamber 110b, at least a portion of the first gas flow channel 120 and the flow stop rod 1322 are housed within the third chamber 210a, at least a portion of the second flow stop assembly 230 interacts with the flow stop rod 1322, the flow stop limiting end 1321 is separated from the first gas flow channel 120 (i.e., there is a ventilation gap between the flow stop limiting end 1321 and the first gas flow channel 120), the second flow stop assembly 230 is separated from the second gas flow channel 220 (i.e., there is a ventilation gap between the second flow stop assembly 230 and the second gas flow channel 220), the first gas flow channel 120 and the second gas flow channel 220 are connected, and gas can flow from the first port 110A, the first gas flow channel 120 and the second gas flow channel 220 to the second port 200A.

[0058] Furthermore, please refer to Figure 4The second flow-stopping assembly 230 may include a ejector pin 231 and a second elastic element 232, wherein the second elastic element 232 is located within the fourth chamber 210b, and the second elastic element 232 includes, but is not limited to, a spring. Preferably, the elastic coefficient of the first elastic element 131 is greater than the elastic coefficient of the second elastic element 232. The ejector pin 231 may include an ejector pin limiting end 2311 and an ejector pin body 2312. The ejector pin limiting end 2311 is connected to the second elastic element 232, and the ejector pin body 2312 penetrates through the second gas flow channel 220 and extends relative to the second gas flow channel 220. In a cross-section perpendicular to the extension direction of the second gas flow channel 220, the cross-sectional dimension of the ejector pin body 2312 is smaller than the cross-sectional dimension of the second gas flow channel 220, and the cross-sectional dimension of the ejector pin limiting end 2311 is larger than the cross-sectional dimension of the second gas flow channel 220.

[0059] In the above structure, when the second valve body 200 is in the closed state, the second elastic element 232 can apply an elastic force from the second gas flow channel 220 toward the second docking end 200B to the ejector pin 231. At this time, the ejector pin limiting end 2311 abuts against the second gas flow channel 220 under the action of the elastic force, thereby achieving the purpose of closing the second gas flow channel 220 and realizing one-way locking. When the gas transfer valve 10 is in the open state, the third sub-housing 211 is housed within the second sub-housing 112, the first gas flow channel 120 is housed within the third sub-housing 211, and the ejector body 2312 is at least partially located within the first gas flow channel 120 and interacts with the stop rod 1322, so that a venting gap is formed between the stop limiting end 1321 and the first gas flow channel 120, and a venting gap is formed between the ejector limiting end 2311 and the second gas flow channel 220, thereby allowing gas to flow from the first port 110A, the first gas flow channel 120 and the second gas flow channel 220 to the second port 200A.

[0060] In other possible embodiments, please refer again. Figure 4The second flow-stopping assembly 230 also includes a locking assembly 233, which includes a transition nut 2331, a transmission screw 2332, and a locking block 2333. The transition nut 2331 is threadedly connected to the inner wall of the fourth chamber 210b. The transmission screw 2332 includes a first end and a second end that are disposed opposite to each other. The first end of the transmission screw 2332 is threadedly connected to the inner wall of the transition nut 2331, and the second end of the transmission screw 2332 is threadedly connected to the locking block 2333. The second elastic element 232 is connected to the first end of the transmission screw 2332. Specifically, when the gas transfer valve 10 is in the open state, the locking block 2333 can drive the transition nut 2331 to move inside the first chamber 110a through the transmission screw 2332, and apply a rigid force to the ejector pin 231 through the transmission screw 2332. This rigid force can change the force on the flow stop 132, thereby adjusting the gap between the flow stop limit end 1321 and the first gas flow channel 120, so as to adjust the flow rate.

[0061] In the above structure, the locking assembly 233 can not only adjust the flow rate of gas through the gas transfer valve 10, but also prevent the stopper 132 and the ejector pin 231 from moving excessively due to external force, thereby preventing the stopper 132 and the ejector pin 231 from interacting without restriction and damaging the gas transfer valve 10. At the same time, it can also prevent the first elastic element 131 and / or the second elastic element 232 from being fatigued due to excessive stretching or compression.

[0062] Furthermore, the locking assembly 233 may also include a nut assembly 2334, which is connected to the portion of the transmission screw 2332 that extends relative to the locking block 2333, to ensure a clearance fit between the locking block 2333 and the transmission screw 2332 and to prevent the locking block 2333 from falling off.

[0063] Furthermore, the first sub-housing 111 also includes a threaded structure on its surface, located close to the second sub-housing 112, for connecting the first valve body 100 to the first gas storage device. The second port 200A may also include a threaded hole communicating with the fourth chamber 210b, for connecting the second valve body 200 to the second gas storage device.

[0064] In some other possible embodiments, please refer to Figure 5 and Figure 6The assembly / disassembly component 240 may further include a movable block 241, a third elastic element 242, a steel ball 243, and a retaining spring 244. The movable block 241 may be located on the outer wall of the third sub-housing 211. The end of the movable block 241 away from the fourth sub-housing 212 also includes a receiving step. The third elastic element 242 is located between the movable block 241 and the third sub-housing 211. The movable block 241 can move along the extension direction of the second gas flow channel 220 under the elastic force of the third elastic element 242. The third chamber 210a may further include a receiving through-hole for receiving the steel ball 243, which can move within the receiving through-hole in a direction perpendicular to the second gas flow channel 220. The outer wall of the first gas flow channel 120 is provided with a locking groove 121. In the conductive state, the steel ball 243 is at least partially located within the locking groove 121, and the retaining spring 244 abuts against the receiving step. The retaining ring 244 can be located on the side of the third sub-housing 211 away from the second gas flow channel 220. The retaining ring 244 can prevent the movable block from detaching from the second valve body 200, thereby improving the structural stability of the gas transfer valve 10. Through the coordinated operation of the movable block 241, the third elastic element 242, the steel ball 243, and the retaining ring 244, the first valve body 100 and the second valve body 200 can be quickly connected or quickly disassembled.

[0065] Specifically, when it is necessary to transfer gas, the movable block 241 can be moved first along the direction close to the fourth sub-shell 212 (i.e., Figure 5 The valve body moves in the direction shown (V1) so that the receiving step is positioned above the receiving through hole. Next, the first valve body 100 and the second valve body 200 are connected, and the third sub-housing 211 is housed within the second sub-housing 112. The steel ball 243 moves along the direction approaching the receiving step under the action of the first gas flow channel 120 until it engages with the locking groove 121 on the first gas flow channel 120. Finally, the movable block 241 is reset based on the third elastic element 242, causing the retaining spring 244 to contact the movable block 241.

[0066] During the above process, since the elastic coefficient of the first elastic element 131 is greater than that of the second elastic element 232, the first elastic element 131 will first provide an elastic force to the ejector pin 231 through the flow stopper 132, thereby forming a venting gap between the ejector pin limiting end 2311 and the second gas flow channel 220. At this time, the locking block 2333 can be rotated to apply a reverse force to the flow stopper 132 through the transmission screw 2332 and the ejector pin 231, so that a venting gap is formed between the flow stopper limiting end 1321 and the first gas flow channel 120, realizing the connection between the first gas flow channel 120 and the second gas flow channel 220.

[0067] It should be noted that when the gas pressure of the first gas storage device and / or the second gas storage device exceeds the safety threshold, the disassembly assembly 240 can automatically detach from the first valve body 100 to quickly release the pressure inside the valve and ensure the safety of the equipment and operators. Specifically, when the gas pressure of the first gas storage device and / or the second gas storage device is too high, the gas pressure in the third chamber 210a can cause the third sub-shell 211 to deform, causing the retaining spring 244 to no longer disengage from the receiving step, thereby releasing the lock of the retaining spring 244 on the movable block 241. At this time, the movable block 241 and the steel ball 243 move away from the first gas flow channel 120 under the action of gas pressure, causing the first valve body 100 to automatically separate from the second valve body 200, thereby achieving instantaneous pressure relief and protecting the safety of the equipment and operators.

[0068] Furthermore, please refer to again Figure 5 and Figure 6 To ensure the sealing between the first valve body 100 and the first gas storage device, the first valve body 100 may further include a first sealing ring 141, a second sealing ring 142, and a third sealing ring 143. The first sealing ring 141 may be disposed between the flow-stopping end 1321 and the first gas flow channel 120. The second sealing ring 142 may be disposed at the end of the threaded structure near the second sub-housing 112. The third sealing ring 143 may be disposed between the first gas flow channel 120 and the first housing 110. Similarly, the second valve body 200 may further include a fourth sealing ring 251, a fifth sealing ring 252, and a sixth sealing ring 253. The fourth sealing ring 251 may be disposed on the inner wall of the third chamber 210a and near the ejector pin body 2312. The fourth sealing ring 251 ensures the sealing effect when the first valve body 100 and the second valve body 200 are mated. The fifth sealing ring 252 can be disposed between the locking nut 2331 and the transmission screw 2332, and the sixth sealing ring 253 can be disposed between the locking nut 2331 and the fourth sub-housing 212.

[0069] Based on the same inventive concept, please refer to Figure 7 and Figure 8 This application may also provide a hydrogen fuel cell device 1, which includes any of the gas transfer valves 10 in the above embodiments, as well as a first gas storage device 20 and a second gas storage device 30. The first gas storage device 20 may be connected to the first valve body 100, and the second gas storage device 30 may be connected to the second valve body 200.

[0070] When the first valve body 100 and the second valve body 200 are in the closed state, the first flow-stopping component 130 and the second flow-stopping component 230 can respectively abut against the first gas flow channel 120 and the second gas flow channel 220, thereby sealing the first gas flow channel 120 and the second gas flow channel 220 and preventing gas leakage from the first gas storage device 20 and the second gas storage device 30. When transferring gas, the first docking end 100B and the second docking end 200B can be connected, so that the first flow-stopping component 130 is separated from the first gas flow channel 120 and the second flow-stopping component 230 is separated from the second gas flow channel 220, thereby putting the first valve body 100 and the second valve body 200 in the open state. At this time, the gas in the first gas storage device 20 can enter the gas transfer valve 10 through the first port 110A, and then enter the second gas storage device 30 sequentially through the first gas flow channel 120, the second gas flow channel 220 and the second port 200A. For example, the first gas storage device 20 may include a gas cylinder, and the second gas storage device 30 may include an electric stack or a gas dispensing mechanism.

[0071] In the above structure, the gas transfer between the first gas storage device and the second gas storage device is realized through the gas transfer valve 10. This not only effectively reduces the number of control switches, simplifies the operation steps, and reduces the difficulty of operation for operators, but also effectively reduces the possibility of gas leakage and improves gas transmission efficiency and operational safety.

[0072] In summary, this application provides a gas transfer valve and a hydrogen fuel cell device. The gas transfer valve includes a first valve body and a second valve body. The first valve body includes a first gas flow channel and a first flow-stopping component. The first flow-stopping component controls the state of the first valve body by whether it abuts against the first gas flow channel. The second valve body includes a second flow-stopping component and a second gas flow channel. The second flow-stopping component controls the state of the second valve body by whether it abuts against the second gas flow channel. In the above structure, the first and second flow-stopping components control the conduction and cut-off states of the first and second gas flow channels. Through the synergistic effect of the disassembly and assembly components and the first gas flow channel, the number of control switches can be effectively reduced, the operation steps can be simplified, the first and second valve bodies can be quickly connected or disassembled, the operation difficulty for operators can be reduced, the possibility of gas leakage can be reduced, and the gas transmission efficiency and operational safety can be improved.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A gas transfer valve, characterized in that, Includes a first valve body and a second valve body; The first valve body includes a first housing, a first gas flow channel, a first flow-stopping component, a first port located on opposite sides of the first housing, and a first docking end. The first gas flow channel and the first flow-stopping component are located inside the first housing. The first flow-stopping component is located between the first docking end and the first port. The gas flow channel is located between the first flow-stopping component and the first housing. The first flow-stopping component controls the state of the first valve body by whether it abuts against the first gas flow channel. The second valve body includes a second housing, a second flow-stopping assembly, a disassembly and assembly assembly, and a second port and a second mating end located on both sides of the second housing. The second housing includes a second gas flow channel disposed between the second port and the second mating end. The disassembly and assembly assembly is located on the side of the second housing closer to the second mating end. The second flow-stopping assembly is at least partially located in the second gas flow channel. The second flow-stopping assembly controls the state of the second valve body by whether or not it abuts against the second gas flow channel. The gas transfer valve includes an on state and a off state. In the on state, the first docking end is aligned and accommodated in the second docking end, the disassembly and assembly assembly engages with the first gas flow channel, the first flow-stopping assembly interacts with the second flow-stopping assembly, the first flow-stopping assembly separates from the first gas flow channel, the second flow-stopping assembly separates from the second gas flow channel, and the first gas flow channel and the second gas flow channel are connected. In the cut-off state, the first docking end and the second docking end are separated, the first flow-stopping component abuts against the first gas flow channel, and the second flow-stopping component abuts against the second gas flow channel.

2. The gas transfer valve according to claim 1, characterized in that, The first housing includes a first sub-housing; The first flow-stopping assembly includes a first elastic element and a flow-stopping element. The first sub-housing has a first chamber. The first elastic element is housed in the first chamber. The flow-stopping element includes a flow-stopping limiting end. The flow-stopping limiting end is connected to the first elastic element and located in the first chamber. In a cross-section perpendicular to the extension direction of the first gas flow channel, the cross-sectional dimension of the flow-stopping limiting end is larger than the cross-sectional dimension of the first gas flow channel.

3. The gas transfer valve as described in claim 2, characterized in that, The flow-stopping component further includes a flow-stopping rod connected to the flow-stopping limiting end. The flow-stopping rod is located in the first gas flow channel and extends from the first port toward the first docking end. The first housing also includes a second sub-housing that is coaxially disposed with the first sub-housing; A second chamber is formed between the second sub-shell and the first gas flow channel. In the conductive state, the second chamber is used to accommodate the second docking end.

4. The gas transfer valve as described in claim 3, characterized in that, The second housing includes a third sub-housing and a fourth sub-housing; The third sub-shell has a third chamber, and the fourth sub-shell has a fourth chamber, wherein the third chamber and the fourth chamber are connected via the second gas flow channel, and the second flow-stopping assembly is located in the fourth chamber and the second gas flow channel; In the conductive state, the third sub-shell is housed within the second chamber, at least a portion of the first gas flow channel and the flow-stopping rod are housed within the third chamber, at least a portion of the second flow-stopping assembly interacts with the flow-stopping rod, the flow-stopping limiting end is separated from the first gas flow channel, the second flow-stopping assembly is separated from the second gas flow channel, and the first gas flow channel and the second gas flow channel are connected.

5. The gas transfer valve as described in claim 4, characterized in that, The disassembly and assembly components include a movable block, a retaining spring, a steel ball, and a third elastic element; The movable block is located on the outer wall of the third sub-shell, the third elastic member is located between the movable block and the third sub-shell, and the end of the movable block away from the fourth sub-shell also includes a receiving step, wherein the movable block moves along the extension direction of the second gas flow channel based on the third elastic member; The steel ball is movably disposed in the receiving through hole of the third chamber, and the retaining spring is located at the end of the third sub-housing away from the second gas flow channel; The outer wall of the first gas flow channel is provided with a locking groove. In the conductive state, the steel ball is at least partially located in the locking groove, and the retaining spring abuts against the receiving step.

6. The gas transfer valve as described in claim 4, characterized in that, The second flow-stopping assembly includes a pin and a second elastic element, wherein the second elastic element is located in the fourth chamber; The ejector pin includes an ejector pin body and an ejector pin limiting end. The ejector pin limiting end is connected to the second elastic element. The ejector pin body passes through the second gas flow channel and extends relative to the second gas flow channel. In a cross-section perpendicular to the extension direction of the second gas flow channel, the cross-sectional dimension of the ejector pin body is smaller than the cross-sectional dimension of the second gas flow channel, and the cross-sectional dimension of the ejector pin limiting end is larger than the cross-sectional dimension of the second gas flow channel.

7. The gas transfer valve as described in claim 6, characterized in that, The second flow-stopping assembly further includes a locking assembly, which includes a transition nut, a transmission screw, and a locking block; The transition nut is threadedly connected to the inner wall of the fourth chamber. The transmission screw includes a first end and a second end that are arranged opposite to each other. The first end of the transmission screw is threadedly connected to the inner wall of the transition nut, and the second end of the transmission screw is threadedly connected to the locking block. The second elastic element is connected to the first end of the transmission screw.

8. The gas transfer valve as described in claim 7, characterized in that, The locking assembly also includes a nut assembly; The nut assembly is connected to the portion of the transmission screw that extends relative to the locking block.

9. The gas transfer valve according to claim 8, characterized in that, The first sub-housing also includes a threaded structure located on its surface, the threaded structure being disposed close to the second sub-housing; The second port also includes a threaded hole, which communicates with the fourth chamber.

10. A hydrogen fuel cell device, characterized in that, It includes a first gas storage device, a second gas storage device, and a gas transfer valve as described in any one of claims 1-9, wherein the first gas storage device is connected to the first valve body, and the second gas storage device is connected to the second valve body.

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