A fluid connector with a valve core integrated protection structure

Abstract

This invention discloses a fluid connector with a valve core featuring a built-in protective structure in the field of connector technology. It aims to solve the problem in existing technologies where the sealing ring on the fixed valve core is easily washed away or deformed by water pressure, and foreign matter adheres, leading to sealing failure. It includes a plug and a socket. The plug includes a first housing, which includes a first cavity and a first insertion end. A sealing valve core is disposed within the first cavity, and a protective groove is provided on one side of the sealing valve core. The socket includes a second housing, which includes a second cavity and a second insertion end. A fixed valve core and a movable valve core are disposed within the second cavity, and a first sealing ring is provided on the fixed valve core. This invention is applicable to connectors, ensuring that the second sealing ring is protected by the protective groove throughout, preventing impact from high-speed fluid, guaranteeing the sealing effect of the second insertion end, and also limiting and guiding the sealing valve core, allowing its axial sliding to proceed steadily and improving the smoothness of the connection.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to a fluid connector with a valve core featuring a built-in protective structure. Background Technology

[0002] As electronic components in equipment continue to evolve towards higher frequencies, higher densities, and higher integration, the issue of how to achieve efficient heat dissipation is becoming increasingly prominent. Liquid cooling technology has become the preferred solution to this problem. Liquid cooling technology is now widely used in many fields such as aviation, aerospace, electronics, shipbuilding, communications, wind power, electric vehicles, and data centers.

[0003] With the continuous development of technology, electronic devices are becoming increasingly reliable, creating an urgent need for highly reliable fluid connectors to facilitate fluid transfer between the cooled module and the chassis. Fluid connectors with O-rings mounted on the valve core present the following problems:

[0004] When the fluid connector is plugged in or unplugged under pressure, the sealing ring on the fixed valve core is easily washed away or deformed by the water pressure when the fluid is flushed during the process of the flow channel opening or closing, or when the connector is plugged in. Excess material may also adhere to the seal, leading to seal failure. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fluid connector with a built-in protective structure for the valve core, thereby solving the problem that the sealing ring on the current fixed valve core is easily washed away or deformed by water flow pressure, and that excess material adheres, leading to sealing failure.

[0006] To solve the above-mentioned technical problems, the present invention is implemented using the following technical solution:

[0007] The present invention provides a fluid connector with a valve core integrated protection structure, comprising: a plug and a socket adapted to the plug, wherein the plug and the socket have a separated state and an assembled state.

[0008] The plug includes a first housing, the first housing includes a first cavity and a first plug end that are in communication with each other, the first cavity is provided with a sealing valve core that can slide axially relative to the first housing, and the sealing valve core is provided with a protective groove on the side opposite to the first cavity.

[0009] The socket includes a second housing, which includes a second cavity and a second plug-in end that are interconnected. The second cavity is provided with a fixed valve core and a movable valve core that is fitted outside the fixed valve core and can slide axially relative to the second housing. The fixed valve core is provided with a first sealing ring on its circumferential outer wall.

[0010] When the plug and socket are in the separated state, the outer circumferential wall of the sealing valve core and the inner circumferential wall of the first insertion end remain in contact, thereby sealing the first cavity; the outer circumferential wall of the movable valve core and the inner circumferential wall of the second insertion end remain in contact, and the inner circumferential wall of the movable valve core and the outer circumferential wall of the fixed valve core remain in contact, thereby sealing the second cavity; the first sealing ring presses against the inner circumferential wall of the movable valve core, thereby improving the sealing performance between the movable valve core and the fixed valve core.

[0011] When the plug and socket are in the combined state, the first cavity and the second cavity are in communication with each other, and the end of the fixed valve core facing away from the second cavity and the first sealing ring both extend into the protective groove.

[0012] Furthermore, the circumferential outer wall of the fixed valve core is provided with a receiving annular groove for limiting and fixing the first sealing ring;

[0013] When the plug and socket are in the separated state, the first sealing ring is located in the annular cavity formed by the accommodating annular groove and the circumferential inner wall of the movable valve core, thereby isolating it from the fluid in the second cavity.

[0014] When the plug and socket are in the combined state, the first sealing ring is located in the annular cavity formed by the circumferential inner wall of the receiving annular groove and the protective groove, thereby isolating it from the fluid in the first cavity.

[0015] Furthermore, a plug spring is provided in the first cavity, and a socket spring is provided in the second cavity;

[0016] When the plug and socket are in the separated state, the sealing valve core slides to the end of its travel under the action of the plug spring and seals the first cavity, and the movable valve core slides to the end of its travel under the action of the socket spring and seals the second cavity;

[0017] The first housing is provided with a first limiting part for limiting the sliding stroke of the sealing valve core. When the sealing valve core abuts against the first limiting part, it slides to the end of its stroke.

[0018] The second housing is provided with a second limiting part for limiting the sliding stroke of the movable valve core. When the movable valve core abuts against the second limiting part, it slides to the end of its stroke.

[0019] Furthermore, a second sealing ring is provided on the circumferential outer wall of the sealing valve core, and a third sealing ring is provided on the circumferential inner wall of the second insertion end;

[0020] When the plug and socket are in the separated state, the second sealing ring presses against the circumferential inner wall of the first plug end, thereby improving the sealing performance between the sealing valve core and the first plug end; the third sealing ring presses against the circumferential outer wall of the movable valve core, thereby improving the sealing performance between the movable valve core and the second plug end.

[0021] When the plug and socket are in the combined state, the first plug end can be inserted into the second plug end, and the third sealing ring presses against the circumferential outer wall of the first plug end, thereby improving the sealing between the first plug end and the second plug end.

[0022] Furthermore, the first housing includes a first mounting shell and a mating outer shell mounted on one end of the first mounting shell, wherein the first mounting shell achieves radial sealing with the mating outer shell through a fourth sealing ring;

[0023] The second housing includes a second mounting shell and a guide shell mounted on one end of the second mounting shell. The second mounting shell achieves radial sealing with the guide shell through a fifth sealing ring.

[0024] Furthermore, the fixed valve core includes a support plate, a connecting rod, and a sealing part that are fixedly connected in sequence. The first sealing ring is disposed on the sealing part. The support plate is provided with a through hole for fluid to pass through. After installation, the guide shell can cooperate with the second mounting shell to clamp and fix the support plate.

[0025] Furthermore, the sealing valve core is provided with a first spring limiting part, and the socket spring is supported between the first mounting shell and the first spring limiting part;

[0026] The movable valve core is provided with a second spring limiting part, and the socket spring is supported between the support plate and the second spring limiting part;

[0027] The plug-in housing is provided with a mating limiting part. When the plug and socket are in the combined state, the mating limiting part abuts against one end of the guide housing.

[0028] Furthermore, the interlocking outer shell is provided with a first mounting limiting part, and one end of the first mounting shell abuts against the first mounting limiting part after installation;

[0029] The guide housing is provided with a second mounting limiting part, and one end of the second mounting housing abuts against the second mounting limiting part after installation.

[0030] Furthermore, the first mounting shell has a first mounting end at the end away from the interlocking shell, and the first mounting end is connected to the first cavity;

[0031] The second mounting shell has a second mounting end at the end away from the guide shell, and the second mounting end is connected to the second cavity.

[0032] Furthermore, the sealing valve core has a flow port on the side away from the first insertion end, and the side wall of the sealing valve core has a flow hole that communicates with the flow port. The inner bottom wall of the flow port has a tapered flow guiding structure.

[0033] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0034] 1. This invention extends both the end of the fixed valve core facing away from the second cavity and the first sealing ring into the protective groove, placing them under the protection of the protective groove. This ensures that the second sealing ring remains under the protection of the protective groove throughout the entire assembly process, preventing it from being impacted by high-speed fluid and thus avoiding detachment, deformation, or adhesion of foreign matter. This guarantees the sealing effect of the second insertion end. Furthermore, the insertion of the fixed valve core into the protective groove also serves as a limiting and guiding function for the sealing valve core, ensuring stable axial sliding and improving the smoothness of the connector's mating.

[0035] 2. By providing a receiving annular groove on the circumferential outer wall of the fixed valve core, the present invention can conveniently limit and fix the first sealing ring during assembly, thereby reducing the probability of the first sealing ring falling off during use and improving stability. It can also keep the first sealing ring isolated from the fluid throughout the use process, thereby completely avoiding the influence of the fluid on the first sealing ring and extending the service life of the connector. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a cross-sectional view of the plug provided in an embodiment of the present invention;

[0038] Figure 2 This is a cross-sectional view of the socket provided in an embodiment of the present invention;

[0039] Figure 3 This is a cross-sectional structural schematic diagram of the sealing valve core provided in an embodiment of the present invention;

[0040] Figure 4 This is a three-dimensional structural schematic diagram of the sealing valve core provided in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram showing the state of the plug and socket at the initial assembly stage according to an embodiment of the present invention;

[0042] Figure 6This is a schematic diagram of the state of the plug and socket at the critical point of combination provided in the embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram showing the state of the plug and socket when they are assembled in place, according to an embodiment of the present invention.

[0044] In the diagram: 1. Plug; 11. First housing; 111. First mounting housing; 112. Interlocking housing; 112a. Interlocking limiting part; 112b. First mounting limiting part; 113. Fourth sealing ring; 114. First limiting part; 115. First mounting end; 116. First cavity; 117. First plug end; 12. Plug spring; 13. Sealing valve core; 131. Protective groove; 132. First spring limiting part; 133. Flow port; 134. Flow hole; 135. Conical flow guide structure; 14. Second sealing ring; 2. Plug 21. Seat; 21. Second housing; 211. Second mounting housing; 212. Guide housing; 212a. Second mounting limiting part; 213. Fifth sealing ring; 214. Second limiting part; 215. Second mounting end; 216. Second cavity; 217. Second insertion end; 22. Socket spring; 23. Fixed valve core; 231. Support plate; 232. Connecting rod; 233. Sealing part; 234. Through hole; 235. Receiving annular groove; 24. Movable valve core; 241. Second spring limiting part; 25. First sealing ring; 26. Third sealing ring. Detailed Implementation

[0045] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] Example 1:

[0049] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides a fluid connector with a valve core and a built-in protective structure, including: a plug 1 and a socket 2 adapted to the plug 1. The plug 1 and the socket 2 have a separated state and an assembled state. In use, the socket 2 is connected to a cooling fluid source, the plug 1 is connected to the module to be cooled, and the fluid flows from the socket 2 to the plug 1.

[0050] The plug 1 includes a first housing 11, which includes a first cavity 116 and a first plug-in end 117 that are interconnected. The first cavity 116 is provided with a sealing valve core 13 that can slide axially relative to the first housing 11. The sealing valve core 13 is provided with a protective groove 131 on the side opposite to the first cavity 116. The socket 2 includes a second housing 21, which includes a second cavity 216 and a second plug-in end 217 that are interconnected. The second cavity 216 is provided with a fixed valve core 23 and a movable valve core 24 that is fitted outside the fixed valve core 23 and can slide axially relative to the second housing 21. The circumferential outer wall of the fixed valve core 23 is provided with a first sealing ring 25.

[0051] like Figures 1-4 As shown, when the plug 1 and the socket 2 are in a separated state, the outer circumferential wall of the sealing valve core 13 is in contact with the inner circumferential wall of the first insertion end 117, thereby sealing the first cavity 116; the outer circumferential wall of the movable valve core 24 is in contact with the inner circumferential wall of the second insertion end 217, and the inner circumferential wall of the movable valve core 24 is in contact with the outer circumferential wall of the fixed valve core 23, thereby sealing the second cavity 216; the first sealing ring 25 presses against the inner circumferential wall of the movable valve core 24, thereby improving the sealing performance between the movable valve core 24 and the fixed valve core 23.

[0052] like Figure 5 As shown, at the beginning of the assembly, the first plug end 117 of the plug 1 is inserted into the second plug end 217 of the socket 2 and comes into contact with the movable valve core 24. Since the sealing valve core 13 and the movable valve core 24 have not been displaced relative to each other at this time, the first cavity 116 and the second cavity 216 are not connected.

[0053] like Figure 6 As shown, at the critical moment of assembly, the first plug end 117 of the plug 1 is further inserted into the second plug end 217 of the socket 2, and the end of the fixed valve core 23 facing away from the second cavity 216 and the first sealing ring 25 are both inserted into the protective groove 131, with the outer periphery of the first sealing ring 25 pressing against the circumferential inner wall of the protective groove 131. At this time, since the movable valve core 24 is pushed by the first housing 11 to separate from the fixed valve core 23, the second plug end 217 is in the open state. However, since the sealing valve core 13 has not completely separated from the first plug end 117 under the push of the fixed valve core 23, the outer wall of the sealing valve core 13 still presses against the inner wall of the first plug end 117, so the first plug end 117 is still in the blocked state, and therefore the first cavity 116 and the second cavity 216 are not connected.

[0054] like Figure 7 As shown, when the assembly is in place, the sealing valve core 13, under the push and guidance of the fixed valve core 23, moves along the axial direction of the first housing 11 away from the first insertion end 117 until it is completely separated from the first insertion end 117. At this time, the first insertion end 117 is in the open state, so the first cavity 116 and the second cavity 216 are connected. In addition, the first sealing ring 25 continues to be protected by the protective groove 131, avoiding direct impact from high-speed fluid.

[0055] As can be seen from the above, the first sealing ring 25 is protected by the protective groove 131 throughout the entire assembly process. Therefore, it will not be knocked off or deformed by the impact of high-speed fluid, nor will there be any foreign matter adhering to it, thus ensuring the sealing effect of the second housing 21 insertion end.

[0056] It should be noted that in this embodiment, an annular groove matching the sealing ring can be provided at the location where the sealing ring is set. During assembly, the sealing ring is engaged in the annular groove to obtain a good limiting and fixing effect. In addition, the number of sealing rings is not limited to one, but can also be two or more closely arranged to obtain a better sealing effect. No specific limitation is made here, and it can be adjusted according to the actual application.

[0057] In this embodiment, the outer circumferential wall of the fixed valve core 23 is provided with a receiving annular groove 235 for limiting and fixing the first sealing ring 25; when the plug 1 and the socket 2 are in a separated state, the first sealing ring 25 is located in the annular cavity formed by the inner wall of the receiving annular groove 235 and the inner circumferential wall of the movable valve core 24, thereby isolating it from the fluid in the second cavity 216; when the plug 1 and the socket 2 are in a combined state, the first sealing ring 25 is located in the annular cavity formed by the inner wall of the receiving annular groove 235 and the inner circumferential wall of the protective groove 131, thereby isolating it from the fluid in the first cavity 116.

[0058] By setting the receiving annular groove 235, the first sealing ring 25 can be conveniently limited and fixed during assembly, thereby reducing the probability of the first sealing ring 25 falling off during use and improving stability. It can also keep the first sealing ring 25 isolated from the fluid throughout the entire use process, thereby completely avoiding the influence of the fluid on the first sealing ring 25 and extending the service life of the device.

[0059] In this embodiment, a plug spring 12 is provided in the first cavity 116, and a socket spring 22 is provided in the second cavity 216. When the plug 1 and the socket 2 are in a separated state, the sealing valve core 13 slides to the end of its stroke under the action of the plug spring 12 and seals the first cavity 116. The movable valve core 24 slides to the end of its stroke under the action of the socket spring 22 and seals the second cavity 216.

[0060] Specifically, during the transition from a separated state to a combined state between plug 1 and socket 2, the sealing valve core 13 and the movable valve core 24 perform the aforementioned movements, applying force to the plug spring 12 and the socket spring 22, causing them to elastically deform. When the transition from a combined state to a separated state, the plug spring 12 and the socket spring 22 are no longer subjected to force, thus restoring their elastic deformation and causing the sealing valve core 13 and the movable valve core 24 to slide to the end of their stroke, returning to their initial positions. This achieves an automatic reset function, allowing the device to be used multiple times.

[0061] In this embodiment, the first housing 11 is provided with a first limiting part 114 for limiting the sliding stroke of the sealing valve core 13. When the sealing valve core 13 abuts against the first limiting part 114, it slides to the end of its stroke. The second housing 21 is provided with a second limiting part 214 for limiting the sliding stroke of the movable valve core 24. When the movable valve core 24 abuts against the second limiting part 214, it slides to the end of its stroke.

[0062] Specifically, the first limiting portion 114 is formed by extending radially inward from the first insertion end 117. Correspondingly, the sealing valve core 13 has a stepped groove with a complementary shape on its circumferential outer wall near the first insertion end 117, so that the two can remain in close contact when they abut. Similarly, the second limiting portion 214 is formed by extending radially inward from the second insertion end 217. Correspondingly, the movable valve core 24 has a stepped groove with a complementary shape on its circumferential outer wall near the second insertion end 217, so that the two can remain in close contact when they abut. This limits the sliding stroke of the sealing valve core 13 and the movable valve core 24, ensuring that they are in the correct position after reaching the end of their stroke, thus guaranteeing a sealing effect.

[0063] In this embodiment, a second sealing ring 14 is provided on the circumferential outer wall of the sealing valve core 13, and a third sealing ring 26 is provided on the circumferential inner wall of the second insertion end 217.

[0064] When the plug 1 and the socket 2 are in a separated state, the second sealing ring 14 presses against the circumferential inner wall of the first plug end 117, thereby improving the sealing performance between the sealing valve core 13 and the first plug end 117, and the third sealing ring 26 presses against the circumferential outer wall of the movable valve core 24, thereby improving the sealing performance between the movable valve core 24 and the second plug end 217.

[0065] When the plug 1 and the socket 2 are in the combined state, the first plug end 117 can be inserted into the second plug end 217, and the third sealing ring 26 presses against the circumferential outer wall of the first plug end 117, thereby improving the sealing between the first plug end 117 and the second plug end 217.

[0066] In this way, the third sealing ring 26 is also kept isolated from the fluid throughout the entire assembly process. Therefore, it will not be detached or deformed by the impact of high-speed fluid, nor will there be any foreign matter adhering to it. This not only ensures the sealing effect between the first housing 11 and the second housing 21 during the assembly process and avoids leakage of fluid in the connector during transmission, but also improves the sealing effect of the second plug end 217.

[0067] In this embodiment, the first housing 11 includes a first mounting housing 111 and a mating outer housing 112 mounted on one end of the first mounting housing 111. The first mounting housing 111 achieves radial sealing with the mating outer housing 112 through a fourth sealing ring 113. The second housing 21 includes a second mounting housing 211 and a guide outer housing 212 mounted on one end of the second mounting housing 211. The second mounting housing 211 achieves radial sealing with the guide outer housing 212 through a fifth sealing ring 213.

[0068] It is understood that the end of the interlocking outer shell 112 away from the first mounting shell 111 is the first insertion end 117 of the first shell 11, and the end of the guide shell 212 away from the second mounting shell 211 is the second insertion end 217 of the second shell 21; when assembled, the interlocking outer shell 112 is inserted into the guide shell 212 and keeps in close contact with its inner wall.

[0069] The above method facilitates the production and manufacturing of the first housing 11 and the second housing 21, and also facilitates the assembly of other components, reduces the manufacturing cost of the connector, and improves production efficiency.

[0070] In this embodiment, the fixed valve core 23 includes a support plate 231, a connecting rod 232 and a sealing part 233 that are fixedly connected in sequence. The first sealing ring 25 is provided on the sealing part 233. The support plate 231 is provided with a through hole 234 for fluid to pass through. After installation, the guide shell 212 can cooperate with the second mounting shell 211 to clamp and fix the support plate 231.

[0071] like Figure 5 As shown, at the beginning of the assembly, the sealing part 233 maintains a radial seal with the movable valve core 24 through the first sealing ring 25, and the movable valve core 24 maintains a radial seal with the guide housing 212 through the third sealing ring 26. Thus, the second insertion end 217 is in a blocked state at this time.

[0072] like Figure 7 As shown, when the assembly is in place, the movable valve core 24, pushed by the interlocking housing 112, overcomes the force of the socket spring 22 and retracts to the inside of the guide housing 212. Thus, it no longer adheres to the closing part 233, so the second plug-in end 217 is in the open state. At this time, fluid can pass through the through hole 234 from one side of the second mounting housing 211 into the second cavity 216, that is, the inner cavity of the guide housing 212. After passing between the movable valve core 24 and the connecting rod 232, it flows into the interlocking housing 112 via the second plug-in end 217.

[0073] In this way, the fixed valve core 23 can be securely installed inside the guide housing 212, ensuring the effectiveness of the device and reducing the manufacturing difficulty of the socket 2, making it easier to carry out mass production.

[0074] Furthermore, the sliding fit between the outer wall of the sealing portion 233 and the inner wall of the movable valve core 24 restricts the radial displacement of the movable valve core 24, preventing radial offset or oscillation of the movable valve core 24 under large fluid impacts. This improves the stability of the movable valve core 24 under pressure and frequent insertion / removal conditions, reducing the failure rate of the fluid connector. On the other hand, the movable valve core 24 and the sealing portion 233 together form a large flow orifice, and the setting angle and extension direction of the flow orifice smoothly transition with the fluid flow direction, greatly reducing the flow resistance of the fluid within the connector. Under the same cooling fluid source pressure, this increases the fluid throughput within the module to be cooled, achieving a better cooling effect.

[0075] Example 2:

[0076] like Figure 2 and Figure 4 As shown, this embodiment provides a fluid connector with a valve core having its own protective structure. The difference between this embodiment and the first embodiment is that the sealing valve core 13 is provided with a first spring limiting part 132, and the socket spring 22 is supported between the first mounting shell 111 and the first spring limiting part 132; the movable valve core 24 is provided with a second spring limiting part 241, and the socket spring 22 is supported between the support plate 231 and the second spring limiting part 241.

[0077] Specifically, the first spring limiting part 132 and the second spring limiting part 241 respectively limit the plug spring 12 and the socket spring 22 so that they will not deflect during compression and reset, thereby avoiding the radial force generated by the sealing valve core 13 and the moving valve core 24, which in turn leads to the generation of sliding friction force and improves the smoothness of connector mating.

[0078] In this embodiment, the plug housing 112 is provided with a mating limiting part 112a. When the plug 1 and the socket 2 are in a combined state, the mating limiting part 112a abuts against one end of the guide housing 212.

[0079] By limiting the insertion of the insertion limiting part 112a, it is easy to determine whether the plug 1 and the socket 2 are properly connected when they are assembled, thus ensuring the sealing of the connector and making it easy to use.

[0080] In this embodiment, the insert housing 112 is provided with a first installation limiting part 112b, and one end of the first mounting housing 111 abuts against the first installation limiting part 112b after installation; the guide housing 212 is provided with a second installation limiting part 212a, and one end of the second mounting housing 211 abuts against the second installation limiting part 212a after installation.

[0081] Specifically, the fourth sealing ring 113 is disposed on the first mounting limiting part 112b and is covered by the first mounting shell 111 after the first housing 11 is assembled; while the fifth sealing ring 213 is disposed on the second mounting limiting part 212a and is covered by the second mounting shell 211 after the second housing 21 is assembled. In this way, the assembly of the first housing 11 and the second housing 21 can be facilitated, and production efficiency can be improved.

[0082] In this embodiment, the first mounting shell 111 has a first mounting end 115 at the end away from the interlocking shell 112, and the first mounting end 115 is connected to the first cavity 116; the second mounting shell 211 has a second mounting end 215 at the end away from the guide shell 212, and the second mounting end 215 is connected to the second cavity 216.

[0083] In use, the second mounting end 215 in this embodiment is used to mate with the cooling fluid source, and the first mounting end 115 is used to mate with the cooling module, thereby facilitating docking and making the connector easy to install and use. However, it is not limited to this; the first mounting end 115 can also be connected to the cooling fluid source, and the second mounting end 215 can be connected to the module to be cooled. In this case, the fluid flow direction is from the plug 1 to the socket 2, which can be adjusted accordingly.

[0084] In this embodiment, as Figure 2 and Figure 3 As shown, the sealing valve core 13 has a flow port 133 on the side away from the insertion end of the first housing 11, and a flow hole 134 connected to the flow port 133 is provided on the side wall of the sealing valve core 13. A conical flow guide structure 135 is provided on the inner bottom wall of the flow port 133.

[0085] like Figure 5 As shown, at the beginning of the assembly, the sealing valve core 13 maintains a radial seal with the mating housing 112 through the second sealing ring 14, so the first mating end 117 is in a blocked state at this time.

[0086] like Figure 7 As shown, when the assembly is in place, the sealing valve core 13, pushed by the fixed valve core 23, overcomes the force of the plug spring 12 and retracts to the inside of the mating housing 112. Thus, it no longer adheres to the front end of the mating housing 112. At this time, the first plug end 117 is in the open state, so that the fluid can enter the front end cavity of the mating housing 112 from the first plug end 117, that is, the front end of the first cavity 116. After passing through the flow hole 134 and entering the flow port 133, it is guided by the tapered flow guide structure 135 into the rear end of the first cavity 116, that is, the rear end cavity of the mating housing 112, and finally flows out through the channel on the first mounting shell 111.

[0087] In this way, fluid can be transported smoothly and stably, and the radial displacement of the sealing valve core 13 can be limited. This avoids radial displacement or swaying of the sealing valve core 13 under large fluid impact, and improves the stability of the sealing valve core 13 when working under pressure and under frequent insertion and removal conditions.

[0088] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A valve core self-protection structure fluid connector, characterized in that, The utility model relates to a plug (1) and a socket (2) matched with the plug (1), the plug (1) and the socket (2) have a separated state and a combined state, the plug (1) comprises a first shell (11) with a first cavity (116) and a first plug end (117) in communication, a sealing valve core (13) capable of sliding axially relative to the first shell (11) is arranged in the first cavity (116), and a protection groove (131) is arranged on the side of the sealing valve core (13) away from the first cavity (116); the socket (2) comprises a second shell (21) with a second cavity (216) and a second plug end (217) in communication, a fixed valve core (23) and a movable valve core (24) capable of sliding axially relative to the second shell (21) are arranged in the second cavity (216), and a first sealing ring (25) is arranged on the circumferential outer wall of the fixed valve core (23); when the plug (1) and the socket (2) are in the separated state, the circumferential outer wall of the sealing valve core (13) and the circumferential inner wall of the first plug end (117) are in close contact, thereby sealing the first cavity (116); the circumferential outer wall of the movable valve core (24) and the circumferential inner wall of the second plug end (217) are in close contact, the circumferential inner wall of the movable valve core (24) and the circumferential outer wall of the fixed valve core (23) are in close contact, thereby sealing the second cavity (216), and the first sealing ring (25) presses against the circumferential inner wall of the movable valve core (24), thereby improving the sealing performance between the movable valve core (24) and the fixed valve core (23); when the plug (1) and the socket (2) are in the combined state, the first cavity (116) and the second cavity (216) are in communication, and the end of the fixed valve core (23) away from the second cavity (216) and the first sealing ring (25) extend into the protection groove (131). A containing ring groove (235) for limiting and fixing the first sealing ring (25) is arranged on the circumferential outer wall of the fixed valve core (23); when the plug (1) and the socket (2) are in the separated state, the first sealing ring (25) is arranged in the annular cavity formed by the containing ring groove (235) and the circumferential inner wall of the movable valve core (24), thereby being isolated from the fluid in the second cavity (216); when the plug (1) and the socket (2) are in the combined state, the first sealing ring (25) is arranged in the annular cavity formed by the containing ring groove (235) and the circumferential inner wall of the protection groove (131), thereby being isolated from the fluid in the first cavity (116). A plug spring (12) is arranged in the first cavity (116), and a socket spring (22) is arranged in the second cavity (216). ​ ​ ​ 2. The valve core self-protection structure fluid connector according to claim 1, wherein, ​ ​ ​ 3. The valve core self-protection structure fluid connector according to claim 1, wherein, ​ When the plug (1) and the socket (2) are in the separated state, the sealing spool (13) slides to the end of the stroke under the action of the plug spring (12) and seals the first cavity (116), and the movable spool (24) slides to the end of the stroke under the action of the socket spring (22) and seals the second cavity (216); The first housing (11) is provided with a first limiting portion (114) for limiting the sliding stroke of the sealing spool (13), and the sealing spool (13) slides to the end of the stroke when abutting against the first limiting portion (114); The second housing (21) is provided with a second limiting portion (214) for limiting the sliding stroke of the movable spool (24), and the movable spool (24) slides to the end of the stroke when abutting against the second limiting portion (214).

4. The valve core self-protection structure fluid connector according to claim 1, wherein, The circumferential outer wall of the sealing spool (13) is provided with a second sealing ring (14), and the circumferential inner wall of the second plug end portion (217) is provided with a third sealing ring (26); When the plug (1) and the socket (2) are in the separated state, the second sealing ring (14) abuts against the circumferential inner wall of the first plug end portion (117), thereby improving the sealing between the sealing spool (13) and the first plug end portion (117), and the third sealing ring (26) abuts against the circumferential outer wall of the movable spool (24), thereby improving the sealing between the movable spool (24) and the second plug end portion (217); When the plug (1) and the socket (2) are in the combined state, the first plug end portion (117) can be inserted into the second plug end portion (217), and the third sealing ring (26) abuts against the circumferential outer wall of the first plug end portion (117), thereby improving the sealing between the first plug end portion (117) and the second plug end portion (217).

5. The valve core self-protection structure fluid connector according to claim 3, characterized in that, The first housing (11) comprises a first mounting shell (111) and a counterplug shell (112) mounted at one end of the first mounting shell (111), and the first mounting shell (111) is radially sealed with the counterplug shell (112) through a fourth sealing ring (113); The second housing (21) comprises a second mounting shell (211) and a guide shell (212) mounted at one end of the second mounting shell (211), and the second mounting shell (211) is radially sealed with the guide shell (212) through a fifth sealing ring (213).

6. The valve core self-protection structure fluid connector according to claim 5, wherein, The fixed spool (23) comprises a support plate (231), a connecting rod (232) and a closed portion (233) connected in sequence, the first sealing ring (25) is arranged on the closed portion (233), the support plate (231) is provided with a through hole (234) for fluid to pass through, and the guide shell (212) can be clamped and fixed with the second mounting shell (211) after installation.

7. The valve core self-protection structure fluid connector according to claim 6, characterized in that, The sealing spool (13) is provided with a first spring limiting portion (132), and the socket spring (22) is supported between the first mounting shell (111) and the first spring limiting portion (132). The movable valve core (24) is provided with a second spring limiting part (241), and the socket spring (22) is supported between the supporting plate (231) and the second spring limiting part (241); The counterplug shell (112) is provided with a plug-in limiting part (112a), and when the plug (1) and the socket (2) are in the combined state, the plug-in limiting part (112a) abuts against one end of the guide shell (212).

8. The valve core self-protection structure fluid connector according to claim 6, wherein, The counterplug shell (112) is provided with a first mounting limiting part (112b), and one end of the first mounting shell (111) abuts against the first mounting limiting part (112b) after being mounted; The guide shell (212) is provided with a second mounting limiting part (212a), and one end of the second mounting shell (211) abuts against the second mounting limiting part (212a) after being mounted.

9. The valve core self-protection structure fluid connector according to claim 6, wherein, The first mounting shell (111) is provided with a first mounting end (115) away from the counterplug shell (112), and the first mounting end (115) is in communication with the first cavity (116); The second mounting shell (211) is provided with a second mounting end (215) away from the guide shell (212), and the second mounting end (215) is in communication with the second cavity (216).

10. The valve core self-protection structure fluid connector according to any one of claims 1-9, characterized in that, The movable valve core (13) is provided with a flow-through port (133) away from the first plug-in end (117), the side wall of the movable valve core (13) is provided with a flow-through hole (134) in communication with the flow-through port (133), and the inner bottom wall of the flow-through port (133) is provided with a tapered flow guide structure (135).

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