A connection end, fluid connector and liquid cooling system

Abstract

The utility model discloses a connecting end, fluid connector and liquid cooling system relates to fluid connector technical field. The connecting end includes valve body, valve cover and connecting cap, and valve cover and connecting cap rotatably are established in the valve body outside, and connecting cap is detachably connected with valve cover, and the valve body is axially limited between connecting cap and valve cover, valve cover is equipped with valve cover through -hole, and the valve body is equipped with valve body passageway, and through the rotation of valve cover relative to valve body, makes valve cover through -hole intercommunication to open corresponding valve body passageway, or staggered to close corresponding valve body passageway. Valve cover and connecting cap can be axially limited to valve body, can effectively avoid the axial movement of valve body relative to valve cover, through the rotation between valve cover and valve body, can realize the on-off of connecting end, is convenient for operating, guarantees that connecting end can normally complete on-off function, simultaneously, connecting cap and valve cover set up in the outside of valve body, and the assembly relation is simple, when needing connecting end maintenance, can directly dismantle connecting cap, valve cover in the outside of valve body, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fluid connector technology, and in particular to a connection end, a fluid connector and a liquid cooling system. Background Technology

[0002] In the existing system, the fluid connector includes a connection end, which includes a valve cover, a valve seat, and a valve core rotatably disposed between the valve cover and the valve seat. An operating part is provided on the outside of the valve seat to drive the valve core to move, thereby controlling the opening and closing of the connection end.

[0003] In the process of developing this application, the inventors discovered at least the following problems in the prior art:

[0004] The above solution uses a riveting method to fix the valve cover and valve seat, and the valve core needs to be connected to the operating part outside the valve seat through a complex structure that penetrates the valve seat. There are complex internal and external cross-assemblies between the components, the assembly relationship is complicated, disassembly is difficult, and the maintainability of the connection end is poor.

[0005] Therefore, how to provide a connection end that is easy to maintain is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a connection end, as well as a fluid connector and liquid cooling system including the above-mentioned connection end, wherein the connection end is easy to maintain.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A connection end includes a valve body, a valve cover, and a connecting cap. The valve cover and the connecting cap are rotatably disposed on the outside of the valve body. The connecting cap is detachably connected to the valve cover. The valve body is axially confined between the connecting cap and the valve cover. The valve cover has a valve cover through hole, and the valve body has a valve body channel. By rotating the valve cover relative to the valve body, the valve cover through hole can be connected to open the corresponding valve body channel, or offset to close the corresponding valve body channel.

[0009] Optionally, the valve cover includes a valve plate and an assembly ring fixed to one side of the valve plate in the axial direction, and the valve cover through hole is provided on the valve plate; the valve body extends into the assembly ring and is arranged sequentially with the valve plate in the axial direction.

[0010] Optionally, the valve cover further includes a mating ring for fitting another connecting end, the mating ring and the assembly ring being located on opposite sides of the valve plate in the axial direction.

[0011] Optionally, the connecting cap is an axially penetrating annular structure; at least a portion of the connecting cap in the axial direction is an extension portion, at least a portion of the assembly ring is sleeved on the outside of the extension portion, and the valve plate and the extension portion clamp the valve body in the axial direction.

[0012] Optionally, the outer peripheral surface of the valve body includes a large-diameter section and a small-diameter section, and a valve body stepped surface is formed between the large-diameter section and the small-diameter section; the extension portion axially abuts against the valve body stepped surface and is sleeved on the outside of the small-diameter section; the large-diameter section is axially sandwiched between the extension portion and the valve plate.

[0013] Optionally, at least a portion of the connecting cap in the axial direction is an edge portion, which is located at one end of the extension portion away from the valve plate; the edge portion is sleeved on the outside of the valve body and externally placed on the assembly ring, and the edge portion abuts against the assembly ring in the axial direction.

[0014] Optionally, the connecting cap is at least partially connected to the valve cover, and the connected parts are an inner cylinder portion provided on one of the connecting cap and the valve cover, and an outer sleeve portion provided on the other. The outer sleeve portion is fitted outside the inner cylinder portion, the outer circumferential surface of the inner cylinder portion is provided with an external thread, the inner circumferential surface of the outer sleeve portion is provided with an internal thread, and the internal thread is threadedly connected to the external thread.

[0015] Optionally, the valve cover and / or the connecting cap are integrally formed; and / or, the valve cover is provided with two valve cover through holes, and the valve body is provided with two valve body channels. By rotating the valve cover relative to the valve body, the two valve cover through holes can be connected to the two valve body channels in a one-to-one correspondence, or the two valve cover through holes and the two valve body channels can be completely offset.

[0016] A fluid connector includes two detachably connected ends, the connected ends being as described above.

[0017] A liquid cooling system, including the connection end as described above.

[0018] The connection end provided by this utility model includes a valve body, a valve cover, and a connecting cap. The valve cover and the connecting cap are rotatably disposed on the outside of the valve body. The connecting cap is detachably connected to the valve cover. The valve body is axially confined between the connecting cap and the valve cover. The valve cover has a valve cover through hole, and the valve body has a valve body channel. By rotating the valve cover relative to the valve body, the valve cover through hole is connected to open the corresponding valve body channel, or it is offset to close the corresponding valve body channel.

[0019] Compared with the prior art, this application has at least the following beneficial effects:

[0020] In the aforementioned connection end, the valve cover and connecting cap can axially limit the valve body, effectively preventing axial movement of the valve body relative to the valve cover. The connection end can be switched on and off by rotating between the valve cover and the valve body, which is convenient for operation and ensures that the connection end can perform the on and off functions normally. At the same time, the connecting cap and valve cover are located on the outside of the valve body, and the assembly relationship is simple. When the connection end needs maintenance, the connecting cap and valve cover can be directly disassembled on the outside of the valve body, making the connection end maintenance convenient. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 An exploded view of a specific embodiment of the connection end provided by this utility model;

[0023] Figure 2 An exploded view of a second specific embodiment of the connection end provided by this utility model;

[0024] Figure 3 This is a cross-sectional view of a specific embodiment of the fluid connector provided by this utility model;

[0025] Figure 4 This is an exploded view of a specific embodiment of the fluid connector provided by this utility model.

[0026] Figure label:

[0027] Valve body 1, valve body passage 11, valve body stepped surface 12, large diameter section 13, small diameter section 14;

[0028] Valve cover 2, valve plate 21, valve cover through hole 211, assembly ring 22, valve cover stepped surface 221, mating ring 23;

[0029] Connecting cap 3, insertion part 31, edge part 32. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The core of this utility model is to provide a connection end, as well as a fluid connector and liquid cooling system including the connection end, wherein the connection end is easy to maintain.

[0032] For a specific embodiment of the connector provided by this utility model, please refer to Embodiment 1. Figure 1 The connecting end includes valve body 1, valve cover 2 and connecting cap 3.

[0033] like Figure 3 As shown, the valve cover 2 and the connecting cap 3 are rotatably disposed on the outside of the valve body 1, and the connecting cap 3 is detachably connected to the valve cover 2. Specifically, both the valve cover 2 and the connecting cap 3 are exposed at the connecting end, that is, at least a portion of the outer surface of the valve cover 2 and the connecting cap 3 constitutes the outer surface of the connecting end. For example, the outer peripheral surfaces of the valve cover 2 and the connecting cap 3 constitute the entire or part of the outer peripheral surface of the connecting end, so that a person can directly contact the valve cover 2 from the outside of the connecting end to apply force to rotate the valve cover 2. The valve body 1 is axially confined between the connecting cap 3 and the valve cover 2, that is, in the axial direction, the valve body 1 cannot move relative to the connecting cap 3 and the valve cover 2.

[0034] It should be noted that, unless otherwise specified, the axial direction in the embodiments of this application generally refers to the extension direction of the axis of rotation that can rotate relative to the valve cover 2 and the valve body 1, and the circumferential and radial directions are also based on this axis of rotation.

[0035] like Figure 1 As shown, the valve cover 2 has a valve cover through hole 211, and the valve body 1 has a valve body channel 11. By rotating the valve cover 2 relative to the valve body 1, the valve cover through hole 211 can be connected to the corresponding valve body channel 11 to open the corresponding valve body channel 11. At this time, the valve cover through hole 211 and the valve body channel 11 form a connection end flow channel for fluid to pass through, realizing the connection end connection or opening. By rotating the valve cover 2 relative to the valve body 1, the valve cover through hole 211 can also be offset from the corresponding valve body channel 11 to close the corresponding valve body channel 11. At this time, the valve cover 2 seals the valve body channel 11, realizing the connection end disconnection or closing.

[0036] It should be noted that one or more valve body channels 11 and valve cover through holes 211 can be provided, and multiple channels can be provided, such as two, three, five, etc. When multiple valve body channels 11 are provided, each valve body channel 11 is connected to one or more corresponding valve cover through holes 211 when connection is required. Specifically, each valve body channel 11 is connected to different valve cover through holes 211 one by one, such as... Figure 1In this design, there are two valve body channels 11 and two valve cover through holes 211. When connection is required, the valve cover 2 is rotated to align the two valve cover through holes 211 with the two valve body channels 11 and connect them. When disconnection is required, the valve cover 2 is rotated again to completely offset the two valve body channels 11 from each valve cover through hole 211, and the two through holes are blocked and sealed by the plate on the valve cover 2. Alternatively, a single valve cover through hole 211 with a larger area can be provided, allowing the valve cover 2 to rotate and simultaneously connect all valve body channels 11.

[0037] The connecting end provided in this embodiment, the valve cover 2 and the connecting cap 3 can axially limit the valve body 1, which can effectively prevent the valve body 1 from moving axially relative to the valve cover 2. The opening and closing of the connecting end can be realized by the rotation between the valve cover 2 and the valve body 1, which is convenient for operation and ensures that the connecting end can normally complete the opening and closing function. At the same time, the connecting cap 3 and the valve cover 2 are located on the outside of the valve body 1, and the assembly relationship is simple. When the connecting end needs maintenance, the connecting cap 3 and the valve cover 2 can be directly disassembled on the outside of the valve body 1 as needed, which is convenient for maintenance.

[0038] Furthermore, in valve cover 2, such as Figure 1 As shown, it includes a valve plate 21 and an assembly ring 22 fixed to one axially upward side of the valve plate 21. Specifically, the valve plate 21 is disposed in one axial end port of the assembly ring 22, forming a groove-like structure with a single-sided opening. A valve cover through hole 211 is provided on the valve plate 21, specifically an axially penetrating through hole. The valve body 1 extends into the assembly ring 22, specifically extending axially into the assembly ring 22 from the side away from the valve plate 21, and the valve body 1 and the valve plate 21 are arranged sequentially along the axial direction. At this time, the valve cover 2 has a simple structure and is easy to assemble.

[0039] For example, the valve body 1, valve cover 2, and connecting cap 3 can all be detachably connected to each other to further facilitate the maintenance of the connection ends.

[0040] For example, when applied to a fluid connector, the fluid connector includes two connected ends, namely a male end and a female end, which are specifically detachably connected. To improve the reliability of the connection, although both the male end and the female end have valve covers 2 including valve plates 21 and assembly rings 22, their shapes can be set as needed to ensure that the valve covers 2 of the male end and the valve covers 2 of the female end can be stably connected.

[0041] In some embodiments, such as Figure 2In the illustrated embodiment, it can serve as a valve cover 2 in the female end. This type of valve cover 2 includes a valve plate 21, an assembly ring 22, and a mating ring 23. The mating ring 23 and the assembly ring 22 are located on opposite sides of the valve plate 21 in the axial direction. Specifically, the mating ring 23 and the assembly ring 22 are fixedly disposed on opposite sides of the valve plate 21 in the axial direction; in other embodiments, the mating ring 23 can also be rotatably connected to the valve plate 21. This type of valve cover 2 is used in the female end, and the mating ring 23 is used to fit over the outside of the male end. The mating ring 23 acts as a guide during assembly, improving assembly efficiency and the reliability of the connection between the male and female ends.

[0042] In other embodiments, such as Figure 1 In the illustrated embodiment, it can serve as a valve cover 2 in the male end. This type of valve cover 2 includes a valve plate 21 and an assembly ring 22, but does not have a mating ring 23. This valve cover 2 is used in the male end, such as... Figure 3 As shown, during the process of the female end and the male end approaching and assembling along the axial direction, the mating ring 23 of the female end is sleeved on the outside of at least a part of the structure of the assembly ring 22 of the male end.

[0043] In some embodiments, such as Figure 1 and Figure 3 As shown, on the valve cover 2, the outer peripheral surface of the assembly ring 22 also has a valve cover stepped surface 221. This type of valve cover 2 can be applied to the male end. When the mating ring 23 of the female end is fitted outside the assembly ring 22 of the male end, the mating ring 23 can axially abut against the valve cover stepped surface 221 to perform axial limiting.

[0044] Furthermore, in connecting cap 3, such as Figure 1 As shown, the connecting cap 3 is an axially continuous ring structure. The connecting cap 3 has a simple structure and is sleeved or plugged into the valve body 1 and valve cover 2, making assembly convenient.

[0045] For example, to accommodate the rotation requirements of the valve cover 2, the main body of the connecting cap 3 is a ring, and other structural processing is performed on the basis of the ring to facilitate the assembly of the valve cover 2. Alternatively, as needed, the connecting cap 3 can also be a ring structure with prisms.

[0046] For example, such as Figure 3 As shown, at least part of the connecting cap 3 in the axial direction is an extension portion 31. The extension portion 31 extends axially into and connects to the assembly ring 22. At this time, the assembly ring 22 is sleeved on the outside of the extension portion 31. The valve plate 21 and the extension portion 31 clamp the valve body 1 in the axial direction. Then, through the cooperation of the valve plate 21 and the extension portion 31, the valve cover 2 and the connecting cap 3 can achieve axial positioning of the valve body 1.

[0047] It should be noted that the valve plate 21 and the extension portion 31 clamp the valve body 1 axially, specifically, they can be the axially clamping portion of the valve body 1. In some embodiments, such as Figure 3 As shown, the outer circumferential surface of the valve body 1 includes a large-diameter section 13 and a small-diameter section 14, forming a valve body stepped surface 12 between them. Specifically, the large-diameter section 13 and the small-diameter section 14 can be arranged sequentially along the axial direction away from the valve plate 21. In addition, the centerlines of the large-diameter section 13 and the small-diameter section 14 can be collinear. Correspondingly, the valve body stepped surface 12 is an annular surface. At this time, the extension 31 axially abuts against the valve body stepped surface 12, the large-diameter section 13 is axially sandwiched between the extension 31 and the valve plate 21, and the extension 31 is sleeved on the outside of the small-diameter section 14. Then, radial restraint can be performed between the extension 31 and the small-diameter section 14, which can improve the stability of the assembly.

[0048] Alternatively, in other embodiments, the connecting cap 3 and the extension portion 31 can also directly clamp the two end faces of the valve body 1 in the axial direction. In this case, the connecting cap 3 can be completely placed outside the assembly ring 22.

[0049] For example, such as Figure 3 As shown, the connecting cap 3 also includes an edge portion 32, specifically an annular structure in the axial direction of the ring-shaped connecting cap 3. The edge portion 32 is located at the end of the extension portion 31 away from the valve plate 21. Specifically, the edge portion 32 and the extension portion 31 are arranged sequentially in the axial direction close to the valve plate 21, and the edge portion 32 has an annular structure and protrudes radially relative to the outer peripheral surface of the extension portion 31. The edge portion 32 is sleeved on the outside of the valve body 1 and externally placed on the assembly ring 22, and the edge portion 32 abuts against the assembly ring 22 in the axial direction. At this time, the edge portion 32 can form an axial limit with the assembly ring 22, limiting the distance that the connecting cap 3 can extend axially into the assembly ring 22.

[0050] Alternatively, in other embodiments, the connecting cap 3 may include only one of the edge portion 32 or the extension portion 31; or, the connecting cap 3 may have multiple limiting blocks arranged circumferentially around the valve body 1, respectively connected to the valve cover 2, and cooperating with the valve cover 2 from different circumferential positions to limit the axial movement of the valve body 1.

[0051] Furthermore, to facilitate the assembly and disassembly of the connecting cap 3 and the valve cover 2, the connecting cap 3 and the valve cover 2 are threaded together. Assembly and disassembly can be achieved through the helical movement of the connecting cap 3 relative to the valve cover 2, making operation convenient. In this case, one of the connecting cap 3 and the valve cover 2 has an internal thread, and the other has an external thread, to cooperate for threaded connection.

[0052] For example, the connecting cap 3 and the valve cover 2 are at least partially connected by a sleeve, and the sleeve portion is an inner cylinder portion provided on one of the connecting cap 3 and the valve cover 2, and an outer sleeve portion provided on the other. The outer sleeve portion is sleeved on the outside of the inner cylinder portion. The outer circumferential surface of the inner cylinder portion is provided with an external thread, and the inner circumferential surface of the outer sleeve portion is provided with an internal thread. The internal thread and the external thread are threadedly connected, thereby realizing the threaded fixed connection between the connecting cap 2 and the valve cover 2.

[0053] The positions of the inner cylinder and outer sleeve can be selected on the connecting cap 3 and valve cover 2 according to actual needs. For example... Figure 3 As shown, the extension portion 31 of the connecting cap 3 and part of the assembly ring 22 are sleeved together, with the assembly ring 22 sleeved on the outside of the extension portion 31. In this case, the extension portion 31 is the inner cylinder, and part of the assembly ring 22 is the outer sleeve. The outer circumferential surface of the extension portion 31 is provided with external threads, while the inner circumferential surface of the portion of the assembly ring 22 that sleeves the extension portion 31 is provided with internal threads. After the valve body 1 and valve cover 2 are assembled, the extension portion 31 of the connecting cap 3 extends axially into the gap between the assembly ring 22 and the valve body 1, undergoing a spiral motion to achieve thread locking of the internal and external threads, until the edge portion 32 and the assembly ring 22 abut against each other axially, and the connecting cap 3 is fully assembled. At this point, the mating structure of the internal and external threads is built into the assembly ring 22, fully utilizing the internal space of the valve cover 2 to complete the assembly and fixation with the connecting cap 3, which is beneficial for improving the space utilization of the valve cap. Furthermore, the threaded fit between the assembly ring 22 and the extension portion 31, as well as the shielding effect of the edge portion 32, helps to improve the sealing effect.

[0054] For example, such as Figure 3 As shown, to improve the sealing performance between the valve body 1 and the valve cover 2, a smooth surface and an internal thread that connects to the connecting cap 3 are sequentially arranged on the inner circumferential surface of the assembly ring 22 along the axial direction away from the valve plate 21. A portion of the internal thread forms an outer sleeve. In this case, the smooth surface and the valve body 1 are rotatably fitted together. Specifically, in the radial direction, the mating position of the smooth surface and the internal thread on the inner circumferential surface of the assembly ring 22 can be aligned with or close to the valve body step surface 12 of the valve body 1.

[0055] Of course, in other embodiments, the connecting cap 3 can also be partially sleeved on the outside of the assembly ring 22 and threaded. In this case, the outer sleeve is located on the connecting cap 3, while the inner sleeve is located on the valve cover 2. Alternatively, the connecting cap 3 and the valve cover 2 can also be snapped together or bolted together, which can also achieve a detachable connection.

[0056] Furthermore, the valve cover 2 is a one-piece molded structure, and / or the connecting cap 3 is a one-piece molded structure to ensure structural strength. Depending on the requirements of materials, mechanical properties, etc., the one-piece molding process can be injection molding, die forging, etc. In other embodiments, the different structures on the valve cover 2, and / or the different structures on the connecting cap 3, can also be fixedly connected as a single unit by welding, bolting, or other methods.

[0057] In addition to the above-mentioned connection ends, such as Figure 3 and Figure 4 As shown, this utility model also provides a fluid connector, which includes connecting ends, specifically two detachably connected connecting ends. The connecting ends can be any of the connecting ends provided in the above embodiments, and the beneficial effects can be referred to the above embodiments accordingly.

[0058] Specifically, the valve covers 2 at the two connecting ends are detachably connected, and the valve cover through holes 211 at the two connecting ends are correspondingly connected. Specifically, the two connecting ends are a male end and a female end, and the valve cover through hole 211 at the male end is correspondingly connected to the valve cover through hole 211 at the female end. Through the synchronous rotation of the valve covers 2 at the two connecting ends, the valve cover through hole 211 at the male end and the valve cover through hole 211 at the female end can remain connected, and the valve body 1 can remain stationary, thus realizing the axial connection and disconnection of the valve body channel 11 at the male end and the valve body channel 11 at the female end.

[0059] Specifically, such as Figure 3 As shown, the two connecting ends are arranged axially, and the valve covers 2 of the two connecting ends abut and seal against each other axially. In the axial direction, the valve body 1 of the male end, the valve plate 21 of the male end, the valve plate 21 of the female end, and the valve body 1 of the female end are arranged in sequence. The valve cover through hole 211 of the male end and the valve cover through hole 211 of the female end are axially connected. In the axial direction, the valve body channel 11 of the female end and the valve body channel 11 of the male end are located on both sides of the valve cover 2 of the two connecting ends.

[0060] In addition to the aforementioned connection end and fluid connector, this utility model also provides a liquid cooling system. This liquid cooling system includes a connection end or fluid connector, which can specifically be the connection end or fluid connector provided in any of the above embodiments. The beneficial effects can be referred to the respective embodiments above. The structure of other parts of this liquid cooling system is described in the prior art and will not be repeated here.

[0061] It should be noted that when an element is referred to as "fixing" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as "connecting" another element, it can be directly connected to the other element or there may be an intervening element. Furthermore, in the description of this utility model, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0062] The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0064] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0065] The connection end, fluid connector, and liquid cooling system provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A connector, characterized in that, It includes a valve body (1), a valve cover (2) and a connecting cap (3). The valve cover (2) and the connecting cap (3) are rotatably disposed on the outside of the valve body (1). The connecting cap (3) is detachably connected to the valve cover (2). The valve body (1) is axially confined between the connecting cap (3) and the valve cover (2). The valve cover (2) is provided with a valve cover through hole (211), and the valve body (1) is provided with a valve body channel (11). By rotating the valve cover (2) relative to the valve body (1), the valve cover through hole (211) is connected to open the corresponding valve body channel (11), or it is offset to close the corresponding valve body channel (11).

2. The connection end according to claim 1, characterized in that, The valve cover (2) includes a valve plate (21) and an assembly ring (22) fixed to one side of the valve plate (21) in the axial direction. The valve cover through hole (211) is provided on the valve plate (21). The valve body (1) extends into the assembly ring (22) and is arranged sequentially with the valve plate (21) in the axial direction.

3. The connecting end according to claim 2, characterized in that, The valve cover (2) also includes a mating ring (23) for fitting another connecting end, the mating ring (23) and the assembly ring (22) being located on both sides of the valve plate (21) in the axial direction.

4. The connecting end according to claim 2, characterized in that, The connecting cap (3) is an axially penetrating ring structure; at least a portion of the connecting cap (3) in the axial direction is an extension (31), at least a portion of the assembly ring (22) is sleeved on the outside of the extension (31), and the valve plate (21) and the extension (31) clamp the valve body (1) in the axial direction.

5. The connecting end according to claim 4, characterized in that, The outer peripheral surface of the valve body (1) includes a large diameter section (13) and a small diameter section (14), and a valve body stepped surface (12) is formed between the large diameter section (13) and the small diameter section (14); the extension part (31) axially abuts against the valve body stepped surface (12) and is sleeved on the outside of the small diameter section (14); the large diameter section (13) is axially sandwiched between the extension part (31) and the valve plate (21).

6. The connecting end according to claim 4, characterized in that, At least a portion of the connecting cap (3) in the axial direction is an edge portion (32), which is located on the extension portion (31) at one end away from the valve plate (21); the edge portion (32) is sleeved on the outside of the valve body (1) and placed outside the assembly ring (22), and the edge portion (32) abuts against the assembly ring (22) in the axial direction.

7. The connecting end according to any one of claims 1 to 6, characterized in that, The connecting cap (3) is at least partially connected to the valve cover (2) in a sleeved configuration. The sleeved portions are an inner cylinder portion on one of the connecting cap (3) and the valve cover (2), and an outer sleeve portion on the other. The outer sleeve portion is sleeved on the outside of the inner cylinder portion. The outer circumferential surface of the inner cylinder portion is provided with an external thread, and the inner circumferential surface of the outer sleeve portion is provided with an internal thread. The internal thread and the external thread are threadedly connected.

8. The connecting end according to any one of claims 1 to 6, characterized in that, The valve cover (2) and / or the connecting cap (3) are integrally formed structures; And / or, The valve cover (2) is provided with two valve cover through holes (211), and the valve body (1) is provided with two valve body channels (11). By rotating the valve cover (2) relative to the valve body (1), the two valve cover through holes (211) can be connected to the two valve body channels (11) in a one-to-one correspondence, or the two valve cover through holes (211) and the two valve body channels (11) can be completely offset.

9. A fluid connector, characterized in that, It includes two detachably connected ends, wherein the connected ends are the connected ends as described in any one of claims 1 to 8.

10. A liquid cooling system, characterized in that, Includes the connection end as described in any one of claims 1 to 8.

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