Connection end, fluid connector, liquid cooling device, and sealing member

Abstract

A connection end, comprising: a valve seat (100) internally provided with a flow channel (110); a valve core (200) movably arranged in the valve seat (100), wherein a through hole (210) is formed in the valve core (200); and sealing members (300) arranged between the valve core (200) and the valve seat (100), wherein each sealing member (300) comprises a first sealing portion (310) and a second sealing portion (320), the first sealing portion (310) is arranged annularly and is disposed in the valve core (200) along the edge of the through hole (210) or disposed in the valve seat (100) along the edge of the flow channel (110), the second sealing portion (320) is arranged annularly and is at least partially sleeved outside the first sealing portion (310) and spaced from the first sealing portion (310), and in the process of the valve core (200) moving from a communicated state with the flow channel (110) to a misaligned state with the flow channel (110), the flow channel (110) and the through hole (210) both are located in the hollow range of the second sealing portion (320). According to the connection end, the effect of a matching surface on a fluid flow state when the valve core (200) is open is reduced, and the resistance formed to the movement of the valve core (200) is small, thereby facilitating the operation of opening or closing the connection end. Also disclosed are a fluid connector, a sealing member (300), and a liquid cooling device, which also achieve the described technical effects.

Description

Connecting end, fluid connector, liquid cooling device and sealing element

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 8, 2024, with application number 202410272237.9 and invention name “A connecting end, fluid connector, liquid cooling device and seal”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of connectors, and more specifically, to a connecting end, a fluid connector, a sealing element, and a liquid cooling device. Background Art

[0003] The Internet of Things (IoE) is driving ever-increasing computing speeds for various chips, leading to increasing demands for chip cooling. Traditional air cooling can no longer meet these requirements, and new types of fluid heat sinks are poised to become the mainstream for chip cooling. Fluid connectors are the interface between the fluid source and various chip heat sinks.

[0004] A fluid connector typically consists of two mating ends, which can have identical or different structures. When disconnecting the fluid source, each end is individually sealed to prevent leakage or spraying. When docking, the two ends release their respective seals, connecting the fluid source and the fluid heat sink. The fluid circulates, removing heat and achieving efficient heat dissipation.

[0005] In the process of implementing the present invention, the inventors discovered that the prior art has at least the following problems:

[0006] Common connection ends achieve switching between open and closed states through the movement of the valve core in the valve seat. However, since the valve core moves relative to the valve seat, it is difficult to achieve precise sealing between the valve core and the valve seat under different states through a simple structure.

[0007] Summary of the Invention

[0008] In view of this, the purpose of this application is to provide a connecting end, a fluid connector, a liquid cooling device and a seal, which achieves precise sealing between the valve core and the valve seat under different states through a simple sealing structure, reduces or even eliminates the adverse effects on the fluid flow state, and creates less resistance to the valve core movement.

[0009] In order to achieve the above objectives, this application provides the following technical solutions:

[0010] A connection terminal, comprising:

[0011] a valve seat having a flow channel therein;

[0012] a valve core movably disposed on the valve seat, wherein a through hole is provided on the valve core, and the valve core is movable to an open state between the through hole and the flow channel and a disconnected state between the through hole and the flow channel;

[0013] A sealing member is provided between the valve core and the valve seat, and the sealing member includes a first sealing portion and a second sealing portion. The first sealing portion is annular and is provided on the valve core along the edge of the through hole or is provided on the valve seat along the edge of the flow channel. The second sealing portion is annular and is at least partially sleeved outside the first sealing portion and is spaced apart from the first sealing portion. During the movement of the valve core from the open state to the disconnected state, the flow channel and the through hole are both located within the hollow range of the second sealing portion.

[0014] Optionally, in the above-mentioned connecting end, the first sealing portion and the second sealing portion are an integrated structure.

[0015] Optionally, in the above-mentioned connecting end, part of the first sealing portion is formed as part of the second sealing portion.

[0016] Optionally, in the above-mentioned connecting end, the first sealing portion is a circular ring sealing ring, and the second sealing portion includes a first arc portion, a second arc portion, a third arc portion and a straight portion, the third arc portion and the straight portion are respectively connected between the first arc portion and the second arc portion at both ends, the first arc portion is formed as a part of the circular ring sealing ring, the second arc portion has the same curvature radius as the first arc portion, the center line of the third arc portion is tangent to the center line of the first arc portion and the center line of the second arc portion, and the center line of the straight portion is tangent to the center line of the first arc portion and the center line of the second arc portion, respectively.

[0017] Optionally, in the above-mentioned connecting end, the second sealing portion is arranged on the valve core, and the second sealing portion is arranged along the shortest path of the projection trajectory around the flow channel, and the projection trajectory of the flow channel is the trajectory formed by the projection of the flow channel on the valve core within the movable range of the valve core.

[0018] Optionally, in the above-mentioned connecting end, the second sealing portion is provided on the valve seat, and the second sealing portion is provided along the shortest path of the moving track around the through hole.

[0019] Optionally, in the above-mentioned connecting end, the sealing components are respectively provided between the two sides of the valve core and the valve seat.

[0020] Optionally, in the above-mentioned connecting end, the valve core is rotatably provided on the valve seat, and the rotation axis is parallel to the axis of the through hole, and the second sealing portion is in an arc shape, and the center of the arc is located at the rotation axis.

[0021] By using the connection end provided in the present application, the seal between the matching surfaces of the valve core and the valve seat adopts a method of matching the first sealing part and the second sealing part. The first sealing part is provided on the valve core along the edge of the through hole or on the valve seat along the edge of the flow channel, so that when the valve core moves to the state where the through hole and the flow channel are open, an effective seal can be formed between the matching surfaces of the valve core and the valve seat, and the fluid is not easy to enter between the matching surfaces of the valve core and the valve seat, that is, the fluid can better flow along the flow channel formed by the flow channel and the through hole, reducing or even eliminating the radial flow of the fluid formed between the matching surfaces, avoiding the turbulence caused thereby, and further avoiding the problems of energy loss and noise caused by turbulence. The second sealing part cooperates with the first sealing part. When the valve core moves from the state of opening with the flow channel to the state of disconnection, the flow channel and the through hole are both located within the hollow range of the second sealing part. Therefore, the second sealing part ensures that the valve core can always maintain a seal with the matching surface of the valve seat within the range of its movement. In summary, the connecting end provided in the present application realizes effective sealing within the range of valve core movement and the valve seat, and at the same time reduces the influence of the mating surface on the fluid flow state in the valve core open state. The contact surface between the seal and the valve core and the valve seat is small, so the resistance to the valve core movement is small, thereby facilitating the operation of opening or disconnecting the connecting end.

[0022] In order to achieve the above object, the present application further provides a fluid connector, which includes any of the above-mentioned connecting ends. Since the above-mentioned connecting ends have the above-mentioned technical effects, the fluid connector having the connecting ends should also have corresponding technical effects.

[0023] To achieve the above objectives, the present invention further provides a liquid cooling device comprising any of the above-mentioned fluid connectors or connection ends. Since the above-mentioned fluid connectors or connection ends have the above-mentioned technical effects, the liquid cooling device comprising the fluid connectors or connection ends should also have corresponding technical effects.

[0024] The present application further provides a sealing member, which is arranged between a main member and a movable member that are movably engaged to achieve a seal between the mating surfaces of the main member and the movable member, wherein the main member is provided with a first flow opening, and the movable member is provided with a second flow opening, and the movable member is movable to an open state between the second flow opening and the first flow opening, and to a disconnected state between the second flow opening and the first flow opening; the sealing member comprises:

[0025] a first sealing portion, the first sealing portion being annular and being arranged on the movable member along an edge of the second flow opening or on the main member along an edge of the first flow opening;

[0026] The second sealing part is annular and at least partially arranged outside the first sealing part and spaced apart from the first sealing part. During the movement of the movable part from the second flow port and the first flow port being opened to the disconnected state, the first flow port and the second flow port are both located in the hollow range of the second sealing part.

[0027] The sealing member provided by the present application is applied and arranged between the movable member and the main member, and the first sealing portion is arranged on the movable member along the edge of the second flow opening or on the main member along the edge of the first flow opening, so that when the movable member rotates to the state where the second flow opening and the first flow opening are open, an effective seal can be formed between the mating surfaces of the movable member and the main member, and the fluid is not easy to enter between the mating surfaces of the movable member and the main member, that is, the fluid can better flow along the flow channel formed by the first flow opening and the second flow opening, reducing or even eliminating the radial flow of the fluid formed between the mating surfaces, avoiding the turbulence caused thereby, and further avoiding the problems of energy loss and noise caused by turbulence. The second sealing portion cooperates with the first sealing portion, and the first flow opening and the second flow opening are both located within the hollow range of the second sealing portion during the process of the movable member moving from the open state to the disconnected state. Therefore, the second sealing portion ensures that the movable member can always maintain a seal with the main member within the range of movement. In summary, the sealing member provided in the present application can realize effective sealing between the movable member and the mating surface of the main member within the movable range. At the same time, it reduces the influence of the mating surface on the fluid flow state when the movable member is in the open state. Moreover, the contact surface between the sealing member and the movable member and the main member is small, so the resistance to the movement of the movable member is small, thereby facilitating the operation of opening or disconnecting the connection end. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0029] FIG1 is a schematic structural diagram of a connection end according to a specific embodiment of the present application;

[0030] FIG2 is a schematic diagram of the AA section corresponding to the valve core open state at the connection end in FIG1 ;

[0031] FIG3 is a schematic diagram of the explosion structure corresponding to the valve core open state of the connection end in FIG1;

[0032] FIG4 is a cross-sectional schematic diagram corresponding to the disconnected state of the valve core at the connection end in FIG1 ;

[0033] FIG5 is a schematic diagram of an explosion structure corresponding to the disconnected state of the valve core at the connection end in FIG1 ;

[0034] FIG6 is a schematic diagram of a sealing member;

[0035] FIG7 is a schematic diagram of a valve core;

[0036] FIG8 is a schematic structural diagram of a fluid connector in an open state according to a specific embodiment of the present application;

[0037] FIG9 is a schematic diagram of the connector corresponding to FIG8 in a closed state.

[0038] The markings in the accompanying drawings are as follows: connecting end 10, end face seal 20, male end flow port 11, female end flow port 12; valve seat 100, valve core 200, seal 300; flow channel 110; through hole 210, sealing groove 220, annular groove 221, U-shaped groove 222; first sealing portion 310, second sealing portion 320, first arc portion 321, second arc portion 322, third arc portion 323, straight portion 324; first end face sealing portion 21, second end face sealing portion 22. DETAILED DESCRIPTION

[0039] The embodiments of the present application disclose a connecting end, a fluid connector, a liquid cooling device and a seal to achieve precise sealing between the valve core and the valve seat under different conditions, reduce or even eliminate turbulence caused by the flow of fluid along the mating surface of the valve core and the valve seat, and create less resistance to the movement of the valve core, so as to facilitate the opening or closing operation of the valve core.

[0040] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0041] The connecting end provided herein includes, but is not limited to, a connection end that mates with another connecting end. When the fluid source is disconnected, the two connecting ends are each independently sealed. When the two connecting ends are docked, they each open, thereby forming a connected fluid channel. The connecting end includes a valve seat and a valve core, with the valve core constrained to move within a predetermined range relative to the valve seat. The valve core is provided with a through hole, and the valve seat is provided with a flow channel. When the valve core moves so that the through hole and the flow channel are in communication, thus entering an open state, the connecting end is open; when the valve core moves so that the through hole and the flow channel are offset, thus entering a disconnected state, the connecting end is closed. It should be understood that the through hole and the flow channel of the valve core being in communication can mean that the through hole and the flow channel are at least partially opposite each other, thereby communicating, or that the through hole and the flow channel are directly opposite each other, thereby allowing fluid in the flow channel to flow from one end of the flow channel through the through hole into the other end of the flow channel, thereby opening the connecting end. When the through hole and the flow channel of the valve core are offset, the through hole and the flow channel are completely offset, thereby preventing fluid in the flow channel from flowing due to the blocking effect of the valve core, i.e., the connecting end is closed. Specifically, the connection end is opened when the valve core moves to the point where the through hole and the flow channel are aligned, and the connection end is closed when the valve core moves to the point where the through hole and the flow channel are completely offset.

[0042] To achieve a seal between the valve core and the valve seat, a seal must be placed between them. During the development of the present invention, the inventors discovered that if a sealing ring is placed between the valve core and the valve seat, a ring around the edge of the valve seat or valve core is required to ensure a constant seal during valve core movement. However, when the through-hole is connected to the flow channel, fluid, especially high-pressure fluid when the connection is used in a liquid cooling device, can easily enter the mating surface between the valve core and the valve seat and flow back through the mating surface, causing turbulence. Turbulence can destabilize the fluid flow and destabilize the fluid flow within the channel, thereby increasing fluid resistance and increasing energy loss. In addition to energy loss, this can easily cause component vibration, noise, and other issues, reducing the performance of the connection. During the development of the present invention, the inventors discovered that, while a sealing gasket between the valve core and the valve seat can achieve a wide range of sealing, the contact area between the sealing gasket and the valve core and valve seat is large. The sealing gasket presents significant resistance to the valve core during movement, hindering its movement and reducing the reliability of the connection.

[0043] In order to overcome the above-mentioned defects, the present application proposes a connecting end, whose sealing member adopts a first sealing part and a second sealing part in combination, which can achieve reliable sealing between the valve core and the valve seat, reduce the risk of causing turbulence, reduce the resistance to the movement of the valve core, improve the reliability of the connecting end and reduce energy loss.

[0044] In the following embodiments, the structure of the sealing member and the manner in which the sealing member cooperates with the valve core and the valve seat are mainly described.

[0045] In one specific embodiment, referring to Figures 1-5 , the connector 10 provided herein includes a valve seat 100, a valve core 200, and a sealing member 300. A flow channel 110 is defined within the valve seat 100. The valve core 200 is movably mounted on the valve seat 100 and has a through hole 210 defined therein. The valve core 200 can be moved to connect the through hole 210 with the flow channel 110, thereby opening the valve, and to separate the through hole 210 from the flow channel 110, thereby disconnecting the valve. The seal 300 is disposed between the valve core 200 and the valve seat 100 and includes a first sealing portion 310 and a second sealing portion 320. The first sealing portion 310 is annular and is disposed on the valve core 200 along the edge of the through-hole 210 or on the valve seat 100 along the edge of the flow channel 110. It is understood that the annular shape herein is not limited to a circular ring and also includes other shapes that are enclosed on all sides. The specific shape of the seal 300, when disposed on the valve core 200, corresponds to the shape of the through-hole 210, and when disposed on the valve seat 100, corresponds to the shape of the flow channel 110. The second sealing portion 320 is annular and at least partially sleeves around the first sealing portion 310 and is at least partially spaced apart from the first sealing portion 310. During the movement of the valve core 200 from the through-hole 210 and flow channel 110 being connected to the open state to the offset state, the flow channel 110 and the through-hole 210 are both located within the hollow space of the second sealing portion 320. Similarly, the second sealing portion 320 can be annular or other enclosed shapes. The second sealing portion 320 can be located on either the valve core 200 or the valve seat 100. When the second sealing portion 320 is located on the valve core 200, the flow channel 110 is located within the second sealing portion 320 within the range of motion of the valve core 200. When the second sealing portion 320 is located on the valve seat 100, the movement trajectory of the through hole 210 is within the hollow area of ​​the second sealing portion 320. The first sealing portion 310 and the second sealing portion 320 can be formed into, but are not limited to, rubber rings, silicone rings, or other sealing material rings.

[0046] By using the connecting end 10 provided in the present application, the sealing member 300 between the mating surfaces of the valve core 200 and the valve seat 100 adopts a method of matching a first sealing portion 310 with a second sealing portion 320. The first sealing portion 310 is arranged on the valve core 200 along the edge of the through hole 210 or is arranged on the valve seat 100 along the edge of the flow channel 110. Therefore, when the valve core 200 moves to the state where the through hole 210 is connected with the flow channel 110 to be opened, an effective seal can be formed between the mating surfaces of the valve core 200 and the valve seat 100. As shown in Figures 2 and 3, the fluid is not easy to enter between the mating surfaces of the valve core 200 and the valve seat 100, that is, the fluid can better flow along the flow channel formed by the flow channel 110 and the through hole 210, thereby reducing or even eliminating the radial flow of the fluid formed between the mating surfaces, avoiding the turbulence caused thereby, and further avoiding energy loss, noise and other problems caused by turbulence. The second sealing portion 320 cooperates with the first sealing portion 310. When the valve core 200 moves from being connected to the flow channel 110 to an open state to being staggered to a disconnected state, the flow channel 110 and the through hole 210 are both located within the hollow range of the second sealing portion 320, as shown in Figures 4 and 5. Therefore, the second sealing portion 320 ensures that the valve core 200 can always maintain a seal with the matching surface of the valve seat 100 within the range of its movement. In summary, the connecting end 10 provided in the present application realizes an effective seal between the valve core 200 and the valve seat 100 within the range of its movement, and at the same time, reduces the influence of the matching surface of the valve core 200 on the fluid flow state in the open state of the valve core 200. In addition, the contact surface between the sealing member 300 and the valve core 200 and the valve seat 100 is relatively small, so the resistance to the movement of the valve core 200 is small, thereby facilitating the operation of opening or disconnecting the connecting end 10.

[0047] In some embodiments, referring to FIG6 , the first sealing portion 310 and the second sealing portion 320 are integrally formed. The first sealing portion 310 and the second sealing portion 320 are integrally formed, facilitating molding and assembly with the connecting end 10 . The integral structure also provides structural reinforcement. Furthermore, when installed, the first sealing portion 310 and the second sealing portion 320 can form a position limiting relationship with each other, making their installation more reliable and less susceptible to displacement during the movement of the valve core 200, which could affect the sealing effect. In other embodiments, the first sealing portion 310 and the second sealing portion 320 can also be separately provided.

[0048] In some embodiments, as shown in FIG6 , a portion of the first sealing portion 310 forms a portion of the second sealing portion 320 . In other words, the first sealing portion 310 and the second sealing portion 320 partially share a common portion. When the sealing member 300 is mounted on the valve core 200, the second sealing portion 320 is sleeved outside the through-hole 210, and the portion shared with the first sealing portion 310 is along the edge of the through-hole 210. When the sealing member 300 is mounted on the valve seat 100, the second sealing portion 320 is sleeved outside the flow channel 110, and the portion shared with the first sealing portion 310 is along the edge of the flow channel 110. This arrangement achieves a reliable seal while significantly reducing the contact area between the sealing member 300, the valve core 200, and the valve seat 100.

[0049] In some embodiments, referring to FIG6 , the first sealing portion 310 is a circular sealing ring, and the second sealing portion 320 includes a first arc portion 321, a second arc portion 322, a third arc portion 323, and a straight portion 324. The third arc portion 323 and the straight portion 324 are connected between the ends of the first arc portion 321 and the second arc portion 322, respectively. The first arc portion 321 forms part of the circular sealing ring, the second arc portion 322 has the same radius of curvature as the first arc portion 321, the centerline of the third arc portion 323 is tangent to the centerlines of the first arc portion 321 and the second arc portion 322, respectively, and the centerline of the straight portion 324 is tangent to the centerlines of the first arc portion 321 and the second arc portion 322, respectively. It will be understood that the first sealing portion 310 is circular, which is suitable for the circular cross-sections of the flow channel 110 and the through hole 210. The first arc portion 321 can block fluid when the valve core 200 moves to an open state between the through hole 210 and the flow channel 110. The second arc portion 322 can be positioned at the edge of the flow channel 110 or the through hole 210 to block fluid when the valve core 200 moves to a disconnected state between the through hole 210 and the flow channel 110. The third arc portion 323 and the straight portion 324 achieve a smooth transition of the overall structure, avoiding stress concentration and providing good elasticity at all locations to provide reliable sealing.

[0050] Furthermore, if the valve core 200 is rotatably mounted on the valve seat 100 and the second sealing portion 320 is disposed on the valve core 200 and adopts the above-described configuration, the third arc portion 323 can always follow the edge of the flow channel 110 when the valve core 200 rotates, thereby maintaining the seal between the valve core 200 and the valve seat 100. Furthermore, the straight portion 324 not only maintains the seal between the valve core 200 and the valve seat 100, but also minimizes the path between the first arc portion 321 and the third arc portion 323, thereby minimizing the resistance of the second sealing portion 320 to the rotation of the valve core 200. Specifically, if the valve core 200 is rotatably mounted on the valve seat 100, the third arc portion 323 can be disposed along the edge of the mating surface between the valve core 200 and the valve seat 100. In other embodiments, the second sealing portion 320 can also be annular.

[0051] In some embodiments, referring to FIG. 7 , sealing grooves 220 are respectively provided on opposite sides of the valve core 200. Seal members 300 are provided in both sealing grooves 220. The sealing grooves 220 include a circular annular groove 221 and a U-shaped groove 222, the inner walls of which are connected by an arcuate transition. The first sealing portion 310 and the second sealing portion 320 both have circular cross-sections. The outer diameters of the first and second sealing portions 310, 320 are greater than the depth of the sealing grooves 220. The first sealing portion 310 is an annular sealing ring and is provided in the annular groove 221. A portion of the second sealing portion 320 forms a portion of the annular sealing ring, and the remaining portion gradually increases in cross-section from one end connected to the first sealing portion 310 to the other end and is separated from the first sealing portion 310. The separated portion is located in the U-shaped groove 222. This arrangement facilitates installation of the seal member 300. The sealing member 300 has a stable and reliable structure and good durability, thereby ensuring the sealing effect between the valve core 200 and the valve seat 100. It is particularly suitable for the case where the valve core 200 is rotatably arranged on the valve seat 100 and the rotation axis of the valve core 200 is parallel to the axis of the through hole 210.

[0052] In some embodiments, the first sealing portion 310 and the second sealing portion 320 are made of the same material to facilitate molding. In other embodiments, the first sealing portion 310 and the second sealing portion 320 may be made of different materials. For example, the hardness of the first sealing portion 310 is greater than the hardness of the second sealing portion 320, so that the sealing force of the second sealing portion 320 is greater than the sealing force of the first sealing portion 310. Therefore, even if the fluid flows out through the first sealing portion 310 due to unexpected factors during use, the second sealing portion 320 can still perform its sealing function, further improving the reliability of the seal between the valve core 200 and the valve seat 100.

[0053] In some embodiments, the second sealing portion 320 is provided on the valve core 200, and the second sealing portion 320 is arranged along the shortest path around the projection trajectory of the flow channel 110. The projection trajectory of the flow channel 110 is the trajectory formed by the projection of the flow channel 110 on the valve core 200 within the range of motion of the valve core 200. The valve core 200 is movably provided on the valve seat 100, that is, the valve core 200 can move relative to the valve seat 100. Typically, the valve seat 100 remains stationary, and the valve core 200 moves relative to the valve seat 100. For example, the second sealing portion 320 is arranged along the shortest path around the trajectory formed by the projection of the flow channel 110 on the valve core 200 within the range of motion of the valve core 200. If the relative motion between the valve core 200 and the valve seat 100 is considered as the valve core 200 being stationary and the valve seat 100 rotating relative to the valve core 200, then the second sealing portion 320 is arranged around the shortest path of the movement trajectory of the flow channel 110. The second sealing portion 320 is configured as described above, which can achieve effective sealing and at the same time the length of the second sealing portion 320 is the shortest, thereby minimizing the resistance to the movement of the valve core 200 .

[0054] In some embodiments, the second sealing portion 320 is disposed on the valve seat 100 and is arranged along the shortest path of the movement trajectory around the through hole 210. The valve core 200 is movably disposed on the valve seat 100, that is, the valve core 200 can move relative to the valve seat 100. Within the range of movement of the valve core 200, the through hole 210 on the valve core 200 forms a corresponding movement trajectory. The second sealing portion 320 is arranged along the shortest path of this trajectory, which can achieve effective sealing while minimizing the length of the second sealing portion 320, thereby minimizing the resistance to the movement of the valve core 200.

[0055] In some embodiments, seals 300 are provided between each side of the valve core 200 and the valve seat 100. When the valve core 200 is entirely disposed within the valve seat 100, seals 300 of the aforementioned structure are provided between each side of the valve core 200 and the valve seat 100, thereby achieving a reliable seal between the valve core 200 and the valve seat 100 from both sides. In other embodiments, such as when one end of the valve core 200 extends from the valve seat 100 and is intended to mate with the other connecting end 10, a seal 300 of the aforementioned structure may be provided between the inner side of the valve core 200 and the valve seat 100.

[0056] In some embodiments, the valve core 200 is rotatably mounted on the valve seat 100. The valve core 200 is rotatable, and its rotation switches the positional relationship between the through-hole 210 and the flow channel 110. The rotatable arrangement of the valve core 200 occupies a small space, and accordingly, the movement stroke of the valve core 200 required to open and close the connection end 10 is small, thereby reducing the required size of the seal 300, further reducing the resistance of the seal 300 to the rotation of the valve core 200. The rotational arrangement of the valve core 200 also facilitates the placement of the seal 300. Specifically, the rotation axis of the valve core 200 is parallel to the axis of the through-hole 210.

[0057] Furthermore, the valve core 200 is rotatably provided on the valve seat 100, and the valve seat 100 is used to cooperate with the valve seat 100 of the other connecting end 10, and the valve seat 100 can rotate relative to the valve seat 100 of the other connecting end 10 and drive the valve core 200 of the other connecting end 10 to rotate, so as to synchronously open or close the two connecting ends 10.

[0058] In some embodiments, the second sealing portion 320 is partially arc-shaped, with the center of the arc located at the rotation axis. As described above, when the second sealing portion 320 rotates with the valve core 200, the arc-shaped portion can better seal the flow channel 110. When the second sealing portion 320 is located on the valve seat 100, the arc-shaped portion can better seal the through hole 210.

[0059] The present invention further provides a fluid connector. In some embodiments, as shown in Figures 8 and 9 , the fluid connector includes a male end and a female end, at least one of which is a connection end 10 in any of the aforementioned embodiments. Because the fluid connector utilizes the connection end 10 in the aforementioned embodiments, the beneficial effects of the fluid connector can be seen in the aforementioned embodiments.

[0060] In some embodiments, both the male and female ends are connected by any of the connection ends described in the above embodiments. The male and female ends are detachably connected and can rotate relative to each other until the male end flow port 11 on the male end face is connected to the female end flow port 12 on the female end face, thereby being in an open state, or staggered to be in a disconnected state. Specifically, when the male and female ends rotate relative to each other, the valve seat 100 on the male end drives the valve core 200 on the female end to rotate, and the valve seat 100 on the female end drives the valve core 200 on the male end to rotate, thereby synchronously opening or closing the male and female ends.

[0061] In some embodiments, an end face seal 20 is provided between the male end face and the female end face. The end face seal 20 includes a first end face seal portion 21 and a second end face seal portion 22. The first end face seal portion 21 is annular and is provided at the male end along the edge of the male end flow opening 11 or at the female end along the edge of the female end flow opening 12; the second end face seal portion 22 is annular and at least partially sleeved outside the first end face seal portion 21 and spaced apart from the first end face seal portion 21. When the male end and the female end move from the open state of the male end flow opening 11 and the female end flow opening 12 to the disconnected state, the male end flow opening 11 and the female end flow opening 12 are both located within the hollow range of the second seal portion 320.

[0062] The end face seal 20 can be configured in the same manner as the seal 300 provided between the valve core 200 and the valve seat 100 in the aforementioned embodiments, and will not be further described here. To facilitate the installation of the end face seal 20, a mounting groove for mounting the end face seal 20 can be provided on the male or female end face.

[0063] Based on the fluid connector or connection end 10 provided in the above embodiments, the present invention further provides a liquid cooling device, which includes any of the fluid connectors or connection ends 10 in the above embodiments. Since the liquid cooling device uses the fluid connector or connection end 10 in the above embodiments, the beneficial effects of the liquid cooling device can be seen in the above embodiments.

[0064] The present application further provides a sealing member 300. In some embodiments, the sealing member 300 is used to be disposed between a main member and a movable member that are movably engaged to achieve a seal between the main member and the movable member. The main member is provided with a first flow opening, and the movable member is provided with a second flow opening. The movable member can be moved so that the second flow opening is connected to the first flow opening or the second flow opening is staggered with the first flow opening. The sealing member 300 includes:

[0065] A first sealing portion 310, which is annular and is used to be provided on the movable member along the edge of the second flow opening or provided on the main member along the edge of the first flow opening;

[0066] The second sealing part 320 is annular and is at least partially arranged outside the first sealing part 310 and at least partially spaced apart from the first sealing part 310. During the movement of the movable part from the second flow port to the first flow port connected state to the staggered state, the first flow port and the second flow port are both located within the hollow range of the second sealing part 320.

[0067] The seal 300 provided in this application is applied and arranged between the movable part and the main part, and the first sealing portion 310 is arranged on the movable part along the edge of the second flow opening or on the main part along the edge of the first flow opening, so that when the movable part rotates to the state where the second flow opening is connected to the first flow opening, an effective seal can be formed between the mating surfaces of the movable part and the main part, and the fluid is not easy to enter between the mating surfaces of the movable part and the main part, that is, the fluid can better flow along the flow channel formed by the first flow opening and the second flow opening, reducing or even eliminating the radial flow of the fluid between the mating surfaces, avoiding the turbulence caused thereby, and thus avoiding the energy loss, noise and other problems caused by turbulence. The second sealing portion 320 cooperates with the first sealing portion 310, and when the movable part moves from the state of being connected to the first flow opening to the staggered state, the first flow opening and the second flow opening are both located within the hollow range of the second sealing portion 320, so the second sealing portion 320 ensures that the movable part can always maintain a seal with the mating surface of the main part within the range of movement. In summary, the seal 300 provided in the present application can achieve effective sealing within the movable range of the movable part and the main part, and at the same time, reduces the influence of the mating surface on the fluid flow state when the movable part is in the open state, and the contact surface between the seal 300 and the movable part and the main part is small, so the resistance to the movement of the movable part is small, thereby facilitating the operation of opening or disconnecting the connecting end 10.

[0068] In some embodiments, the movable member and the main body may be the valve core 200 and valve seat 100 described above. In other embodiments, the movable member and the main body may also be two connecting ends 10. The specific shape of the sealing member 300 can be referenced to the corresponding configuration of the sealing member 300 in the connecting end 10 described above and will not be further described here.

[0069] In some embodiments, the seal 300 provided in the present application is used to be disposed between the valve core 200 and the valve seat 100 of the connection end 10 to achieve sealing between the matching surfaces of the valve core 200 and the valve seat 100. The seal 300 includes:

[0070] A first sealing portion 310 is annular and is disposed on the valve core 200 along the edge of the through hole 210 of the valve core 200 or on the valve seat 100 along the edge of the flow channel 110 of the valve seat 100. The valve core 200 is movably disposed within the valve seat 100, and the valve core 200 can move to connect the through hole 210 with the flow channel 110 or to stagger the through hole 210 with the flow channel 110.

[0071] The second sealing portion 320 is annular and at least partially sleeved outside the first sealing portion 310 and spaced apart from the first sealing portion 310. When the valve core 200 moves from a state of connection with the flow channel 110 to a staggered state, the flow channel 110 and the through hole 210 are both located within the hollow range of the second sealing portion 320.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection end, characterized in that: include: A valve seat (100) having a flow channel (110) therein; A valve core (200) is movably disposed on the valve seat (100), wherein a through hole (210) is provided on the valve core (200), and the valve core (200) is movable to an open state between the through hole (210) and the flow channel (110) and a disconnected state between the through hole (210) and the flow channel (110); A sealing member (300) is provided between the valve core (200) and the valve seat (100), and the sealing member (300) includes a first sealing portion (310) and a second sealing portion (320). The first sealing portion (310) is annular and is provided on the valve core (200) along the edge of the through hole (210) or is provided on the valve seat (100) along the edge of the flow channel (110). The second sealing portion (320) is annular and is at least partially sleeved outside the first sealing portion (310) and is spaced apart from the first sealing portion (310). When the valve core (200) moves from an open state to a disconnected state, the flow channel (110) and the through hole (210) are both located within the hollow range of the second sealing portion (320).

2. The connection terminal according to claim 1, characterized in that: The first sealing portion (310) and the second sealing portion (320) are an integrated structure.

3. The connection terminal according to claim 2, characterized in that: A portion of the first sealing portion (310) is formed as a portion of the second sealing portion (320).

4. The connection terminal according to claim 3, characterized in that: The first sealing portion (310) is a circular sealing ring, and the second sealing portion (320) includes a first arc portion (321), a second arc portion (322), a third arc portion (323) and a straight portion (324). The third arc portion (323) and the straight portion (324) are respectively connected between the two ends of the first arc portion (321) and the second arc portion (322). The first arc portion (321) is formed as a part of the circular sealing ring, the second arc portion (322) and the first arc portion (321) have the same curvature radius, the center line of the third arc portion (323) is tangent to the center line of the first arc portion (321) and the center line of the second arc portion (322), and the center line of the straight portion (324) is tangent to the center line of the first arc portion (321) and the center line of the second arc portion (322).

5. The connecting end according to any one of claims 1 to 4, characterized in that: The second sealing portion (320) is provided on the valve core (200), and the second sealing portion (320) is provided along the shortest path of a projection trajectory around the flow channel (110), wherein the projection trajectory of the flow channel (110) is a trajectory formed by the projection of the flow channel (110) on the valve core (200) within the movable range of the valve core (200).

6. The connection end according to any one of claims 1 to 4, characterized in that: The second sealing portion (320) is provided on the valve seat (100), and the second sealing portion (320) is arranged along the shortest path of a moving trajectory around the through hole (210).

7. The connection end according to any one of claims 1 to 4, characterized in that: The sealing members (300) are respectively provided between the two sides of the valve core (200) and the valve seat (100).

8. The connection end according to any one of claims 1 to 4, characterized in that: The valve core (200) is rotatably arranged on the valve seat (100), and the rotation axis is parallel to the axis of the through hole (210). The second sealing portion (320) is partially arc-shaped, and the center of the arc is located on the rotation axis.

9. A fluid connector comprising a male end and a female end, characterized in that: The male end and / or the female end is a connecting end as described in any one of claims 1 to 8.

10. The fluid connector according to claim 9, wherein: The male end and the female end are detachably connected in a rotational manner. The male end and the female end can be relatively rotated until the male end flow opening (11) on the male end face and the female end flow opening (12) on the female end face are in an open state and a disconnected state. An end face seal (20) is provided between the male end face and the female end face. The end face seal (20) comprises: a first end face sealing portion (21), the first end face sealing portion (21) being annular, and the first end face sealing portion (21) being provided at the male end along the edge of the male end flow opening (11) or being provided at the female end along the edge of the female end flow opening (12); The second end face sealing portion (22) is annular and at least partially sleeved outside the first end face sealing portion (21) and spaced apart from the first end face sealing portion (21); during the movement of the male end and the female end from the open state of the male end flow opening (11) and the female end flow opening (12) to the disconnected state, the male end flow opening (11) and the female end flow opening (12) are both located within the hollow range of the second sealing portion (320).

11. A sealing member, characterized in that: used to be arranged between a main body and a movable member to achieve a seal between the main body and the movable member, the main body being provided with a first flow opening, the movable member being provided with a second flow opening, the movable member being able to move until the second flow opening is in an open state with the first flow opening and the second flow opening is in a disconnected state with the first flow opening; The sealing member comprises: a first sealing portion (310), the first sealing portion (310) being annular, and being arranged on the movable member along an edge of the second flow opening or on the main member along an edge of the first flow opening; The second sealing portion (320) is annular and at least partially sleeved outside the first sealing portion (310) and spaced apart from the first sealing portion (310). During the movement of the movable member from the second circulation port and the first circulation port in an open state to a disconnected state, the first circulation port and the second circulation port are both located within the hollow range of the second sealing portion (320).

12. A liquid cooling device, characterized in that: The invention comprises the fluid connector according to claim 9 or 10 or the connecting end according to any one of claims 1 to 8.

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