Connecting end, fluid connector and liquid cooling system

Abstract

The invention discloses a connecting end, a fluid connector and a liquid cooling system, the connecting end comprises a valve body with a communicating channel and a valve cover rotationally arranged on the valve body, the valve cover comprises a communicating part used for opening and closing the communicating channel, and the valve body is provided with a stop part capable of moving in the axial direction; a pushing part and a positioning part matched with the stop part are arranged on the communicating part, and one end of the pushing part protrudes out of the communicating part; in the first state, the locking part and the positioning part are clamped in the circumferential direction of the valve body in a limiting mode. And in the second state, the pushing part of one connecting end drives the stopping part of the other connecting end to be unclamped from the corresponding positioning part. After the two connecting ends of the fluid connector are assembled in place, the communicating channel can be opened, so that the communicating channel can be effectively prevented from being opened in advance.

Description

Technical Field

[0001] The present application relates to the technical field of fluid connection, and particularly relates to a connection end, a fluid connector and a liquid cooling system. Background Art

[0002] Currently, existing fluid connectors generally include two mating connection ends (male end and female end), and the structures of the two connection ends can be the same or different.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] The opening and closing of the communication channel is controlled by the relative movement of the valve body and the valve cover of the two connection ends. However, when the two connection ends are not assembled in place, the valve body and the valve cover still move relatively, resulting in the premature opening of the communication channel on the valve body, and the reliability of the fluid connector is poor.

[0005] It should be noted that the information disclosed in the background art part of the present application is only intended to deepen the understanding of the general background art of the present application, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of the present application is to provide a connection end, a fluid connector and a liquid cooling system. After the two connection ends of the fluid connector are assembled in place, the communication channel can be opened, thereby effectively avoiding the premature opening of the communication channel.

[0007] To achieve the above purpose, the present application provides a connection end, including a valve body having a communication channel and a valve cover rotatably provided on the valve body. The valve cover includes a communication part for opening and closing the communication channel. The valve body is provided with a stop part that can move axially. The communication part is provided with a pushing part and a positioning part that cooperates with the stop part. One end of the pushing part protrudes from the communication part; in the first state, the stop part and the positioning part are clamped and limited in the circumferential direction of the valve body; in the second state, the pushing part of one connection end drives the stop part of the other connection end to release the clamping with the corresponding positioning part.

[0008] Optionally, the pushing part is fixedly arranged relative to the communication part.

[0009] Optionally, the valve body is provided with circumferentially distributed activity grooves, and the other end of the pushing part is movably located in the activity grooves. The pushing part includes a pushing pin, and the communication part is provided with a limiting hole adapted to the pushing pin, so that the pushing pin passes through the communication part, and the pushing pin and the limiting hole are in circumferential and radial limiting contact.

[0010] Optionally, the push pin located in the active slot is axially limited and clamped with the limiting hole to restrict the movement of the push pin only within the arc length range of the active slot.

[0011] Optionally, the active slot is provided at the outer circumferential edge on the side of the valve body facing the communication part. The valve cover further includes a rotating part connected to the communication part and sleeved on the outer periphery of the valve body. The push pin located in the active slot contacts the communication part and the valve body respectively on both sides axially, and contacts the valve body and the rotating part respectively on both sides radially.

[0012] Optionally, the stopping part includes a spring pin embedded in the valve body, the positioning part includes a locking hole opened on the communication part, the spring pin is inserted and matched with the locking hole, and the spring pin has an initial elastic force moving towards the locking hole.

[0013] Optionally, the push pin in the first state is located at one end of the active slot, and the communication part shuts off the communication channel; the push pin in the second state is used to reach the other end of the active slot, so that the communication part opens the communication channel and the opening degree of the communication part reaches the maximum.

[0014] Optionally, a limiting protrusion is provided on the outer circumference of the pin shaft of the spring pin, and the limiting protrusion is axially limited and clamped with the locking hole on the valve body to prevent the spring pin from coming out of the valve body.

[0015] Optionally, the push pin on one connection end can be inserted into the locking hole on the other connection end, and the end of the push pin does not extend beyond the locking hole. The end of the pin shaft of the spring pin is provided with an outer chamfer structure.

[0016] Optionally, it further includes a connection cap fixedly connected to the rotating part. The connection cap is sleeved on the outer periphery of the valve body and is rotatably arranged relative to the valve body. Axially on the valve body, one side of the valve body is in limiting abutment with the connection cap, and the other side is in limiting abutment with the communication part.

[0017] Optionally, at least two parallel communication channels are provided on the valve body, and corresponding communication holes are provided on the communication part. In the first state, the communication holes are misaligned with the communication channels to shut off the communication channels; in the second state, there is at least one rotation position of the communication part, so that each communication hole is respectively communicated with the corresponding communication channel.

[0018] A fluid connector includes two mating connection ends, at least one of the connection ends being the above-mentioned connection end. A restraint mechanism is provided on the two connection ends. In the second state, the restraint mechanism is used to restrain the synchronous circumferential movement of the two valve covers and to restrain the axial and radial locking of the two valve covers. The communication parts of the two valve covers are in contact and sealed at the adjacent joint surfaces, and the two communication parts remain in sealed communication.

[0019] Optionally, the restraint structure includes:

[0020] A second limiting convex ring is provided on the valve cover of the first connection end and extends towards the second connection end. The second limiting convex ring is sleeved on the outer circumference of the rotating part of the second connection end and is in limiting abutment in the radial direction;

[0021] A limiting groove is opened on the inner wall of the second limiting convex ring;

[0022] A limiting member is provided on the rotating part of the second connection end. The limiting member can extend into the limiting groove to axially clamp the two connection ends.

[0023] Optionally, the limiting member includes a ball. A radial through hole is provided on the rotating part. The ball is arranged to roll in the through hole and is arranged to move radially in the through hole;

[0024] A radial groove is provided on the outer circumference of the valve body of the second connection end. In the first position, the first side of the ball protrudes from the inner circumferential surface of the rotating part and is located in the radial groove. The second side of the ball is located in the through hole, and the ball is disengaged from the limiting groove; in the second position, the outer circumferential surface of the valve body abuts against the first side of the ball. The second side of the ball protrudes from the outer circumferential surface of the rotating part and is located in the limiting groove, and the ball is axially clamped with the limiting groove.

[0025] Optionally, a first inclined surface is provided on one side of the second limiting convex ring facing the second connection end. The first inclined surface is distributed circumferentially on the inner wall of the second limiting convex ring. A second inclined surface is provided on the groove wall of the limiting groove close to the first inclined surface;

[0026] In the first movement direction, the first inclined surface is used to squeeze the second side of the ball to make the ball in the first position; in the second movement direction, the second inclined surface is used to squeeze the second side of the ball to make the ball in the first position.

[0027] Optionally, the constraint mechanism further includes a clamping groove formed on the second limiting convex ring and a clamping block disposed on the second connecting end. The clamping block axially extends into the clamping groove and is in circumferential limiting abutment with the clamping groove.

[0028] Optionally, at least two parallel communication channels are provided on the valve body of each connecting end, and the communication channels on the two connecting ends are in one-to-one correspondence and communication. A corresponding number of communication holes are provided on each communication part. In the first state, the communication holes are misaligned with the communication channels on the two connecting ends to shut off the communication channels; in the second state, there is at least one rotational position of the communication part such that the communication holes communicate the corresponding communication channels on the two connecting ends.

[0029] A liquid cooling system includes the fluid connector described above.

[0030] Compared with the prior art, the technical solution provided by the present application has at least the following beneficial effects:

[0031] When the two connecting ends of the fluid connector are in the first state (such as the disconnected state), the stopping part can be in circumferential limiting engagement with the positioning part, thereby preventing relative movement between the valve cover and the valve body. At this time, the communication part closes the communication channel, which can effectively ensure that the connector is in the shut-off state; when the two connecting ends of the fluid connector are in the second state (such as after being properly assembled), the pushing part of the first connecting end can drive the stopping part of the second connecting end to disengage from the moving groove, and at the same time, the pushing part of one connecting end can move circumferentially on the corresponding valve body, so that the valve covers of the two connecting ends can rotate relative to the corresponding valve bodies. Furthermore, after the valve cover rotates a certain angle, the communication part can open the communication channel. It can be seen that the present application can only make the valve cover rotate relative to the valve body when the two connecting ends are assembled in place, thereby effectively avoiding the premature opening of the communication channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0033] Figure 1 It is an exploded view of the first connecting end provided by the embodiment of the present application;

[0034] Figure 2 It is an exploded view of the second connecting end provided by the embodiment of the present application;

[0035] Figure 3A cross-sectional view of a fluid connector in a connected state provided by an embodiment of the present application;

[0036] Figure 4 for Figure 3 The enlarged structural diagram at A in the middle;

[0037] Figure 5 A cross-sectional view of a fluid connector in a closed state provided in an embodiment of the present application;

[0038] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0039] Figure 7 A cross-sectional view of a valve cover provided in an embodiment of the present application.

[0040] In the figure: 1-valve body; 2-valve cover; 3-connecting cap; 4-first sealing assembly; 5-sliding part; 6-unlocking part; 7-second sealing assembly; 8-connector;

[0041] 11-communication channel; 12-movable groove; 13-pushing part; 14-stopping part; 15-positioning pin; 16-limiting member; 17-radial groove; 18-annular groove; 141-pin shaft; 142-limiting protrusion;

[0042] 21-connecting part; 211-connecting hole; 212-limiting hole; 213-positioning part;

[0043] 22-rotating part; 221-pin hole; 222-conical groove; 223-clamping protrusion; 224-through hole;

[0044] 23-second limiting convex ring; 231-limiting groove; 232-clamping groove; 233-first inclined surface; 234-second inclined surface;

[0045] 24-Card block;

[0046] 31- first limiting convex ring;

[0047] 51-groove; 52-texture. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0050] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0051] Please refer to Figure 1 and Figure 2 In this embodiment, a connection end is provided, which includes a valve body 1 and a valve cover 2. A connecting channel 11 is provided on the valve body 1, and the connecting channel 11 can be connected to an external pipeline through a joint (such as a pagoda head, etc.) 8; in actual applications, the pipeline is usually pre-arranged in a fixed position. Therefore, in order to cooperate with the arrangement of the pipeline, after the valve body 1 of the present application is stably connected to the pipeline through the joint 8, the position relative to the pipeline will not change, that is, the valve body 1 of the present application is fixedly arranged relative to the pipeline.

[0052] The valve cover 2 is rotatably arranged on the valve body 1, and the valve cover 2 includes a connecting portion 21 arranged on one side of the valve body 1 and a rotating portion 22 sleeved on the outer periphery of the valve body 1; specifically, the connecting portion 21 is located on the side of the valve body 1 away from the joint 8, and the opening and closing of the connecting channel 11 is realized by the rotation of the connecting portion 21, and the rotating portion 22 is integrally formed with the connecting portion 21. It should be pointed out that the inner wall of the rotating portion 22 contacts the outer wall of the valve body 1 and is relatively slidably arranged, so that the valve cover 2 as a whole can rotate relative to the valve body 1, and during the rotation process, the adjacent joint surfaces of the connecting portion 21 and the valve body 1 are sealed, thereby effectively ensuring that the fluid cannot overflow from the joint surface.

[0053] In any connection end, a stop portion 14 movable axially is provided on the valve body 1, and a pushing portion 13 is provided on the communicating portion 21. The pushing portion 13 can be detachably connected to the communicating portion 21, or fixedly connected, integrally connected, etc., as long as it is ensured that the rotation of the valve cover 2 can drive the pushing portion 13 to move circumferentially. A positioning portion 213 cooperating with the stop portion 14 is further provided on the communicating portion 21, and one end of the pushing portion 13 can protrude from the communicating portion 21. In the first state, the two connection ends of the fluid connector are disengaged. At this time, the stop portion 14 and the positioning portion 213 are axially limited and clamped on the valve body 1, thereby preventing relative movement between the valve cover 2 and the valve body 1. At this time, the communicating portion 21 shuts off the communication channel 11, and the communication channels 11 on both connection ends are in a shut-off state. It can be understood that the first state corresponds to the situation where the two connection ends of the fluid connector are not assembled in place. The first state can be a state where the two connection ends of the fluid connector are disengaged from each other, or a state where the two connection ends of the fluid connector are connected but only part of the connection work is completed.

[0054] In the second state, that is, when the two connection ends of the fluid connector are assembled in place, the pushing portion 13 of the first connection end can drive the stop portion 14 of the second connection end to disengage from the corresponding positioning portion 213; similarly, the pushing portion 13 of the second connection end can also drive the stop portion 14 of the first connection end to disengage from the corresponding positioning portion 213. Thus, the valve cover 2 and the valve body 1 of the two connection ends are unlocked from each other. At this time, the valve cover 2 of the two connection ends can be rotated relative to the valve body 1, and the rotated valve cover 2 can open the communication channel 11 after rotating a certain angle, realizing the communication of the communication channels 11 of the two connection ends. It can be seen that in this application, only when the two connection ends are assembled in place can the valve cover 2 be rotated relative to the valve body 1, thereby effectively avoiding the premature opening of the communication channel 11.

[0055] It should be noted that in this application, the pushing portion 13 is provided on the valve cover 2, specifically on the communicating portion 21, and can be fixedly arranged relative to the communicating portion 21. Therefore, the rotation of the valve cover 2 can drive the pushing portion 13 to act synchronously; compared with arranging the pushing portion 13 on the valve body 1, the pushing portion 13 in this application moves synchronously relative to the valve cover 2. Therefore, there is no need to provide a groove structure for the movement of the pushing portion 13 on the communicating portion 21, which can improve the overall strength of the valve cover 2.

[0056] In some embodiments, the pushing part 13 can be a pushing pin, and the pushing pin can be directly fixedly connected to the communicating part 21. For example, the two are integrally formed; the pushing pin can also be detachably connected to the communicating part 21, that is, a limiting hole is formed in the communicating part 21, and the pushing pin can be arranged in the limiting hole. To achieve the relative fixation of the pushing part 13 and the communicating part 21, the pushing pin and the limiting hole can be in circumferential and radial limiting contact, and at the same time, a clamping part axially clamped with the pushing pin can be arranged in the limiting hole, so as to achieve the relative fixation of the pushing part 13 and the communicating part 21.

[0057] In addition, axial clamping with the pushing pin can also be achieved outside the limiting hole. Specifically, an activity groove 12 distributed circumferentially is arranged on the valve body 1. Please refer to Figure 1 and Figure 2 , the other end of the pushing part 13 is movably arranged in the activity groove 12; at the same time, on the premise that the limiting hole 212 and the pushing pin are in circumferential and radial limiting contact, the pushing pin located in the activity groove 12 is axially clamped with the limiting hole 212, which can effectively prevent the pushing pin from coming out of the position of the limiting hole 212, and can also restrict the pushing pin to move only within the arc length range of the activity groove 12. Specifically, please refer to Figure 3 , in a connection end, the activity groove 12 is arranged on the outer circumferential edge of the valve body 1 facing the communicating part 21. The pushing pin in the activity groove 12 contacts the communicating part 21 and the valve body 1 respectively on both axial sides, so as to realize the axial position locking of the pushing pin. The pushing pin in the activity groove 12 contacts the valve body 1 and the rotating part 22 respectively on both radial sides, further improving the radial position locking of the pushing pin. Through the above method, the relative fixation of the pushing pin and the communicating part 21 can be achieved, and the pushing pin can only move circumferentially within the arc length range of the activity groove 12, effectively ensuring that the pushing pin has a stable movement effect.

[0058] The pushing pin can pass through the communicating part 21 through the limiting hole 212 and protrude from the communicating part 21 by a certain length, ensuring that the protruding length can push the stopping part 14 out of the corresponding positioning part 213; under the cooperation of the pushing pin and the limiting hole 212, when the valve cover 2 rotates, the pushing pin can be driven to move synchronously, so that the pushing pin moves circumferentially in the corresponding activity groove 12. Of course, the protruding length of the pushing pin should not be too long, ensuring that after the pushing pin is inserted into the positioning part 213, the end of the pushing pin will not affect the normal rotation of the valve cover 2 relative to the valve body 1, which will not be elaborated here.

[0059] The stopping part 14 includes a spring pin embedded in the valve body 1, and the positioning part 213 includes a locking hole opened on the communicating part 21. The spring pin can be inserted and matched with the locking hole so that the spring pin and the locking hole are circumferentially limited and clamped; on this basis, when the two connection ends are assembled, the pushing part 13 of the first connection end should be correspondingly inserted into the locking hole of the second connection end, so as to push out the spring pin in the locking hole, and then realize the circumferential release of the clamping between the spring pin and the locking hole. And the above points out that after the stopping part 14 is disengaged from the positioning part 213, the valve cover 2 can rotate relative to the valve body 1. During the rotation of the valve cover 2, the spring pin axially abuts against the communicating part 21. Only when the stopping part 14 and the positioning part 213 correspond again can the two be circumferentially clamped again.

[0060] Furthermore, as pointed out above, the pushing pin protrudes from the communicating part 21 by a certain length, and the protruding length can be used to push the stopping part 14 of the other connection end to unlock from the positioning part 213; specifically, when the pushing pin of one connection end is inserted into the locking hole of the other connection end, the pushing pin can push the spring pin out of the corresponding locking hole until the spring pin is completely unlocked from the locking hole. At the same time, the pushing pin will stay in the locking hole. The cooperation between the pushing pin and the locking hole can realize the circumferential and radial locking of the two valve covers 2, and realize the torque transmission of the two valve covers 2 through the cooperation between the pushing pin and the locking hole, so as to realize the synchronous rotation of the two valve covers 2.

[0061] It should be noted that when the pushing pin of the first connection end stays in the locking hole of the second connection end, in order to avoid affecting the rotation of the valve cover 2 of the second connection end relative to the valve body 1, the end of the pushing pin should not exceed the locking hole of the second connection end, so as to avoid circumferential interference between the pushing pin and the valve body 1 of the second connection end.

[0062] As mentioned above, the end of the push pin should not extend beyond the locking hole of the second connection end, including two cases. In the first case, when the two connection ends are assembled in place, the end of the push pin of the first connection end is exactly flush with the locking hole of the second connection end. At this time, the push pin can just disengage the spring pin from the locking hole to achieve unlocking. At the same time, the push pin will not interfere with the valve body 1 of the second connection end, and the valve cover 2 and the valve body 1 of the second connection end can rotate relative to each other normally. In the first case, when the two connection ends are assembled in place, the end of the push pin of the first connection end is located inside the locking hole of the second connection end, resulting in the pin body of the spring pin not being able to completely disengage from the locking hole. An external chamfer structure can be provided at the end of the pin shaft 141 of the spring pin. By using the external chamfer structure, an axial extrusion effect is generated between the locking hole and the external chamfer structure, forcing the pin shaft 141 to completely disengage from the locking hole along the axis, realizing the unlocking of the spring pin and the locking hole. In addition, the spring pin has an initial elastic force moving towards the locking hole. When it is necessary to disconnect the two connection ends, the push part 13 of the first connection end needs to move to the position of the stop part 14 of the second connection end, so that the positioning part 213 of the second connection end corresponds to the stop part 14. At this time, the communication part 21 shuts off the communication channel 11, and the two connection ends can be disconnected in this state. And because the stop part 14 corresponds to the positioning part 213, under the action of the elastic force of the spring pin, it will automatically extend into the locking hole, realizing the circumferential clamping of the valve cover 2 and the valve body 1.

[0063] In the first state, that is, when the two connection ends are in the disconnected state, for any one of the connection ends at this time, its push pin is located at one end of the corresponding movable groove 12, and the communication part 21 shuts off the communication channel 11; in the second state, that is, when the two connection ends are assembled in place, at this time the stop part 14 and the positioning part 213 are disengaged from the clamping, the valve cover 2 can rotate relative to the valve body 1, and the push part 13 can extend into the positioning part 213. By rotating the valve cover 2, the push part 13 can be driven to move along the movable groove 12 until the push part 13 reaches the other end of the movable groove 12. At this time, the communication part 21 can open the communication channel 11 of the two connection ends, and the opening degree of the communication part 21 reaches the maximum state.

[0064] It should be noted that since the push pin moves within the arc length range of the movable groove 12, the change of the connection end from the off state to the maximum opening state can be realized within the arc length range of the arc-shaped groove. In addition, in the two connection ends, the locking hole of one connection end needs to correspond to the position of the limiting hole 212 of the other connection end, so as to ensure that the push pin of each connection end can be accurately inserted into the locking hole of the other connection end, and then realize the simultaneous unlocking of the stop part 14 and the corresponding positioning part 213 in the two connection ends, and can be quickly switched to the second state.

[0065] In some embodiments, a limiting protrusion 142 is provided on the outer circumference of the pin shaft 141 of the spring pin. Please refer to Figure 4, in the first state, the head of the pin shaft 141 can extend into the lock hole, and the limiting protrusion 142 is axially limited and clamped with the lock hole on the valve body 1, thereby effectively preventing the spring pin from disengaging from the valve body 1 and ensuring the clamping effect between the spring pin and the lock hole. It should be noted that an axial slot should be opened on the valve body 1, the spring pin is embedded in the slot, and the spring of the spring pin is connected to the bottom of the slot, so as to provide a stable elastic force for the pin shaft 141 of the spring pin.

[0066] Among them, at least two parallel communication channels 11 are provided on the valve body 1. Correspondingly, communication holes 211 are provided on the communication part 21. The number of communication holes 211 is the same as the number of communication channels 11, that is, the corresponding number of communication holes 211 are provided on the communication part 21. In the above first state, each communication hole 211 and the corresponding communication channel 11 are arranged in a staggered manner. Thus, under the action of the first sealing assembly 4, the communication channels 11 at the connection end can be stably shut off; in the above second state, since the valve cover 2 can rotate relative to the valve body 1, during the rotation of the valve cover 2, there is at least one rotation position such that each communication hole 211 communicates with the corresponding communication channel 11 respectively, thereby opening the communication channels 11 at the connection end.

[0067] The present application also provides a fluid connector, which includes two cooperating connection ends, and at least one connection end is the above-mentioned connection end. A constraint mechanism is also provided on the two connection ends. In the second state, the constraint mechanism can constrain the synchronous movement of the two valve covers 2 in the circumferential direction and is used to constrain the axial and radial locking of the two valve covers 2, and the adjacent joint surfaces of the communication parts 21 of the two valve covers 2 are in contact and sealed, and the two communication parts 21 remain sealed and communicated.

[0068] The constraint mechanism includes a second limiting convex ring 23, a limiting groove 231 and a limiting member 16. A second limiting convex ring 23 extending towards the second connection end is provided on the valve cover 2 of the first connection end. The second limiting convex ring 23 can be sleeved on the outer periphery of the valve cover 2 of the second connection end, that is, on the outer periphery of the rotating part 22 of the valve cover 2, and the inner peripheral surface of the second limiting convex ring 23 abuts against the outer peripheral surface of the rotating part 22 of the second connection end to achieve the radial limit between the two.

[0069] A limiting groove 231 is provided on the inner wall of the second limiting convex ring 23. A limiting member 16 is provided on the rotating portion 22 of the second connecting end. The limiting member 16 cooperates with the limiting groove 231 to achieve limiting and clamping in the axial direction. Specifically, the limiting groove 231 can be an annular limiting groove, and the limiting member 16 can be a ball. A radial through hole 224 is provided on the rotating portion 22 of the second connecting end. The ball rolls in the through hole 224, and at the same time, the ball can also move radially in the through hole 224; a radial groove 17 can be provided on the outer periphery of the valve body 1 of the second connecting end. When the ball is in the first position, at this time, the ball corresponds to the position of the radial groove 17. The first side of the ball protrudes from the inner peripheral surface of the rotating portion 22. The ball is located in the radial groove 17, and the second side of the ball is located in the through hole 224. The ball and the limiting groove 231 will not interfere axially, that is, the two are in an unlocked state, which can avoid affecting the normal docking or detachment of the first connecting end and the second connecting end.

[0070] When the ball is in the second position, the outer peripheral surface of the valve body 1 abuts against the first side of the ball. The second side of the ball protrudes from the outer peripheral surface of the rotating portion 22 and is located in the limiting groove 231. At this time, the ball is axially clamped with the limiting groove 231 to achieve axial locking of the two connecting ends. Among them, when the ball switches from the first position to the second position, the valve cover 2 can be rotated to make the ball misaligned with the radial groove 17. Therefore, the outer peripheral surface of the valve body 1 will push the ball into the limiting groove 231 to achieve axial limiting and clamping of the ball and the limiting groove 231. Through the above method, the detachable connection of the two connecting ends in the axial direction can be realized, and a stable axial limiting effect is achieved when the assembly is in place. It can be understood that the limiting member 16 is partially provided on the rotating portion 22 of the second connecting end.

[0071] It should be noted that the above-mentioned ball can move synchronously with the valve cover 2. However, in the state where the two connecting ends are assembled in place, only when the push pin moves to the position of the stop portion 14 can the ball move to the radial groove 17, and only at this time can the two connecting ends be disengaged; in other positions, such as the position when the communication portion 21 is in the maximum opening state, the ball is axially clamped with the limiting groove 231, and the two connecting ends cannot be disengaged.

[0072] In order to facilitate the switching of the ball from the second position to the first position, a first inclined surface 233 can be provided on the side of the second limiting convex ring 23 facing the second connecting end. The first inclined surface 233 is distributed circumferentially on the inner wall of the second limiting convex ring 23. A second inclined surface 234 is provided on the groove wall of the limiting groove 231 close to the first inclined surface 233, as Figure 5 and Figure 6As shown, in the first movement direction, i.e., the movement direction when the two connection ends are butted, the first inclined surface 233 can squeeze the second side of the ball, so that the ball moves towards the first position; in the second movement direction, i.e., the movement direction when the two connection ends are detached, the second inclined surface 234 can squeeze the second side of the ball, so that the ball reaches the first position.

[0073] The constraint mechanism further includes a card slot 232 opened on the second limiting convex ring 23 and a clamping block 24 arranged on the second connection end. Please refer to Figure 1 and Figure 2 , the clamping block 24 is specifically arranged on the valve cover 2 of the second connection end. The clamping block 24 can be inserted axially into the card slot 232, so as to be limited and clamped with the card slot 232 in the circumferential direction; thus, the two connection ends of the fluid connector can be stably connected axially and circumferentially, and at the same time, the two connection ends can also be kept rotating synchronously.

[0074] In addition, the communicating part 21 further includes a communicating hole 211. Please refer to Figure 2 , when the two connection ends are assembled, the communicating holes 211 on one connection end correspond to the communicating holes 211 on the other connection end one by one, so as to ensure the communicating effect of the communicating part 21. Between the adjacent joint surfaces of the two communicating parts 21 in the two connection ends, a second sealing component 7 for realizing contact sealing is provided. The second sealing component 7 is located on the outer periphery of the communicating hole 211, so that the communicating holes 211 on the two communicating parts 21 can be hermetically communicated.

[0075] Similarly, in one connection end, a first sealing component 4 is provided between the adjacent joint surface of the communicating part 21 and the corresponding valve body 1. The first sealing component 4 is located on the outer periphery of the communicating channel 11 and / or the outer periphery of the communicating hole 211, so that the communicating hole 211 is hermetically connected to the communicating channel 11.

[0076] Among them, on the valve body 1 of each connection end of the fluid connector, at least two juxtaposed communicating channels 11 can be provided, and the communicating channels 11 on the two connection ends are communicated with each other one by one. The number of communicating holes 211 on the corresponding each communicating part 21 is the same as the number of communicating channels 11 on each valve body 1, that is, each communicating part 21 is provided with the corresponding number of communicating holes 211. In the above first state, each communicating hole 211 on the communicating part 21 is misaligned with the communicating channels 11 on the two connection ends, so that under the action of the first sealing component 4 and the second sealing component 7, the communicating channels 11 of the valve body 1 can be stably shut off; in the above second state, since the valve cover 2 can rotate relative to the valve body 1, during the rotation of the valve cover 2, there is at least one rotation position of the communicating part 21, so that a plurality of communicating holes 211 communicate the corresponding communicating channels 11 on the two connection ends one by one, thereby opening the communicating channels 11.

[0077] Based on the above embodiments, there are two communication channels 11 on each valve body 1, and correspondingly, there are also two communication holes 211 on each communication part 21. The second sealing assembly 7 is sleeved on the outer periphery of the two communication holes 211 in an "8" - shaped structure, which can seal each communication hole 211; at the same time, there is an annular sealing structure on the outer periphery of the "8" - shaped structure, so as to jointly seal the two through - holes, achieving the purpose of double - layer sealing; similarly, the setting method of the first sealing assembly 4 can also refer to the setting method of the second sealing assembly 7, which will not be elaborated here. In the above - mentioned way, when the communication channel 11 is connected to the communication hole 211, the "8" - shaped structure can be used to achieve sealed connection; after the communication channel 11 and the communication hole 211 are misaligned, the annular sealing structure can be used to seal the adjacent joint surface between the communication part 21 and the corresponding valve body 1, preventing fluid from leaking from the adjacent joint surface between the communication part 21 and the valve body 1 after the communication channel 11 and the communication hole 211 are misaligned.

[0078] There can be various contact - sealing forms for the adjacent joint surfaces of the two communication parts 21. For example, the second sealing assembly 7 includes a sealing ring. A sealing groove can be opened on the joint surface of the communication part 21, and the sealing ring is fixed in the sealing groove, and the sealing ring is in interference fit with the joint surface or the sealing groove of the two communication parts 21, so as to ensure the sealing performance of the sealing ring. Similarly, the contact - sealing form of the adjacent joint surface between the communication part 21 and the valve body 1 can refer to the above - mentioned way, which will not be elaborated here.

[0079] To further improve the reliability of the fluid connector, a positioning pin 15 that moves radially along the valve body 1 can be provided on either the valve body 1 or the rotating part 22, and a pin hole 221 that cooperates with the positioning pin 15 is provided on the other. The positioning pin 15 and the pin hole 221 are circumferentially limited and clamped, so as to prevent the relative movement between the valve cover 2 and the valve body 1 at the target position; also, after the positioning pin 15 moves radially along the valve body 1, it can be disengaged from the pin hole 221, enabling the valve cover 2 to rotate relative to the valve body 1. Based on the above embodiments, the setting of the positioning pin 15 and the pin hole 221 can further improve the reliability of the connection and disconnection of the fluid connector.

[0080] Specifically, in the above - mentioned first state, there is not only the circumferential clamping between the stopping part 14 and the positioning part 213, but also the circumferential clamping between the positioning pin 15 and the pin hole 221. Only when the clamping between the stopping part 14 and the positioning part 213 is released and the clamping between the positioning pin 15 and the pin hole 221 is released, can the valve cover 2 rotate relative to the valve body 1, thus realizing the double - layer locking of the valve body 1 and the valve cover 2, improving the disconnection reliability of the fluid connector, and preventing the connection end from being lifted to open the communication channel 11. Similarly, when the communication part 21 is in the maximum opening state relative to the communication channel 11, the position locking between the valve body 1 and the valve cover 2 can also be realized through the cooperation of another pin hole 221 and the positioning pin 15, improving the opening reliability of the fluid connector.

[0081] It should be noted that the positioning pin 15 of the activity can be located on the valve body 1 or on the rotating part 22, ensuring that the positioning pin 15 can be clamped with the pin hole 221 in the circumferential direction of the valve body 1, and it is only necessary that the positioning pin 15 can be disengaged from the pin hole 221 when it moves to a certain position, and there are no excessive restrictions here. However, considering that if the positioning pin 15 is arranged on the valve cover 2, the radial movement of the positioning pin 15 will affect the overall thickness of the rotating part 22, resulting in a relatively large overall size of the connecting end. Therefore, in this application, the positioning pin 15 can be arranged on the valve body 1 to utilize the size of the valve body 1 itself to reduce the influence of the radial movement of the positioning pin 15 on the size of the connecting end.

[0082] Specifically, the positioning pin 15 includes a spring pin embedded in the valve body 1, and the spring pin can be inserted and matched with the pin hole 221, so as to realize the limit clamping of the valve body 1 and the rotating part 22 in the circumferential direction of the valve body 1; of course, if the positioning pin 15 is arranged on the rotating part 22 and the pin hole 221 is arranged on the valve body 1, the positioning pin 15 moves radially on the rotating part 22, the pin hole 221 is opened on the valve body 1, and the positioning pin 15 and the pin hole 221 can still be inserted and matched. In addition, the positioning pin 15 has an initial elastic force towards the pin hole 221. When the pin hole 221 rotates with the rotating part 22, at a certain position, it will correspond to the position of the positioning pin 15. At this time, under the action of the elastic force, the positioning pin 15 will automatically extend into the pin hole 221 to realize the circumferential clamping of the valve cover 2 and the valve body 1.

[0083] In some embodiments, at least two pin holes 221 are distributed in the circumferential direction of the valve body 1. In the above first state, that is, when the two connecting ends are disengaged, the first pin hole 221 is inserted with the positioning pin 15, and the communication part 21 shuts off the communication channel 11; when the communication part 21 reaches the maximum opening state relative to the communication channel 11, the second pin hole 221 is inserted with the positioning pin 15, so as to ensure that the fluid connector can stably maintain the maximum opening state.

[0084] Since the positioning pin 15 also adopts a setting method similar to that of the stopping part 14, that is, both of them adopt spring pins, the specific setting method of the positioning pin 15 can refer to the setting method of the stopping part 14, and will not be elaborated here.

[0085] In order to facilitate the release of the locking of the positioning pin 15 from the pin hole 221, an unlocking portion 6 can be provided on the rotating portion 22, and the unlocking portion 6 can be pressed to enable the positioning pin 15 to escape from the pin hole 221; specifically, the unlocking portion 6 includes a protrusion corresponding to the position of the pin hole 221, and by pressing, the protrusion can push the positioning pin 15 to move radially, so that the positioning pin 15 escapes from the pin hole 221, and after the positioning pin 15 escapes from the pin hole 221, the valve cover 2 can rotate relative to the valve body 1. It should be noted that under the premise of the above-mentioned second state, if the valve cover 2 rotates relative to the valve body 1, the positioning pin 15 cannot correspond to the pin hole 221, and at this time, the rotating portion 22 can prevent the positioning pin 15 from moving radially, and the valve cover 2 can rotate relative to the valve body 1.

[0086] Of course, when the projection pushes the positioning pin 15 out of the pin hole 221, it cannot interfere with the valve body 1 in the circumferential direction to avoid affecting the normal rotation of the valve cover 2. In addition, the unlocking portion 6 should have an automatic reset function to ensure that it can automatically reset after the pressing action disappears, so that when the positioning pin 15 corresponds to the pin hole 221 again, the positioning pin 15 can automatically extend into the pin hole 221 to achieve circumferential clamping.

[0087] Please refer to Figure 1 The connecting end also includes a toggle portion 5 arranged on the rotating portion 22, and the toggle portion 5 is fixedly arranged relative to the rotating portion 22. The toggle portion 5 can facilitate manual toggle rotation of the valve cover 2; further, the toggle portion 5 includes a rubber sleeve sleeved on the outer periphery of the rotating portion 22, and the rubber sleeve has elastic deformation performance. A clamping protrusion 223 is provided on the outer peripheral surface of the rotating portion 22, and the clamping protrusion 223 can be evenly distributed along the circumferential direction. A groove 51 cooperating with the clamping protrusion 223 is provided on the rubber sleeve, so that the rubber sleeve and the rotating portion 22 can be clamped in the circumferential limit direction. The outer peripheral surface of the rubber sleeve is provided with a texture 52 for increasing friction. By manually toggling the rubber sleeve, the valve cover 2 is driven to rotate as a whole.

[0088] On the basis of the above embodiment, the unlocking part 6 is integrally connected with the rubber sleeve, that is, the automatic resetting function of the unlocking part 6 can be achieved by the elastic deformation performance of the rubber sleeve, and there is a preset gap between the unlocking part 6 and the outer peripheral surface of the rotating part 22, thereby ensuring that when the unlocking part 6 is pressed, the protrusion has space to move toward the pin hole 221.

[0089] It should be pointed out that the above-mentioned preset gap can be formed by a radially outward protrusion of the unlocking part 6, and can also be achieved by setting a conical groove 222 on the outer peripheral surface of the rotating part 22, or by a combination of the above-mentioned two methods, and no excessive restrictions are made here; wherein, the conical groove 222 can be set on the periphery of the pin hole 221, and the above-mentioned preset gap is formed between the unlocking part 6 and the conical groove 222. Through the setting of the conical groove 222, a larger movement space can be provided for the unlocking part 6, thereby ensuring that the protrusion can be fully extended into the pin hole 221, thereby realizing the unlocking of the positioning pin 15 and the pin hole 221.

[0090] The connecting end further includes a connecting cap 3 fixedly connected to the rotating part 22. The connecting cap 3 is threadedly connected to the rotating part 22. On the basis that the rotating part 22 is sleeved on the outer periphery of the valve body 1, the connecting cap 3 can also be sleeved on the outer periphery of the valve body 1 and rotate relative to the valve body 1. Please refer to Figure 3 , an annular groove 18 is formed on the outer edge of one side of the valve body 1 facing the connecting cap 3. The connecting cap 3 is sleeved on the outer periphery of the annular groove 18. Thus, in the axial direction of the valve body 1, the annular groove 18 of the valve body 1 can be in limiting abutment with the connecting cap 3, thereby realizing the axial limit of the valve body 1. The other side of the valve body 1 is in limiting abutment with the communicating part 21, thereby realizing the stable rotation of the connecting cap 3 and the valve cover 2 relative to the valve body 1.

[0091] It should be noted that the rotating part 22 of the valve cover 2 substantially has a threaded section and an extension section. As Figure 7 shown, both ends of the extension section are connected to the communicating part 21 and the threaded section. The threaded section is connected to the connecting cap 3. A limiting structure for the valve body 1 is formed between the connecting cap 3 and the communicating part 21 to prevent the valve body 1 from moving axially. Or the connecting cap 3 can also be used to solely limit the bidirectional movement of the valve body 1 in the axial direction. For example, the connecting cap 3 has a feature embedded in the annular groove 18, and the cross-section of the annular groove 18 is U-shaped. This feature can be in limiting abutment with the two side walls of the annular groove 18, thereby limiting the valve body 1 in the axial direction bidirectionally. The cooperation between the extension end and the valve body 1 can realize the radial limit, so that the valve cover 2 has a stable rotation effect. Among them, the extension section, the threaded section, and the communicating part 21 can be integrally formed, which is convenient for transmitting torque between the rotating part 22 and the communicating part 21, so as to facilitate the rotation of the communicating part 21 through the rotating part 22. The extension section is a sleeve structure or other structures with a cylindrical space, such as a structure in which a plurality of connecting rods are arranged side by side around the axis. The threaded sleeve can also be a structure such as a tooth, which can realize a stable detachable connection with the connecting cap 3.

[0092] A first limiting convex ring 31 is provided on the outer periphery of the connecting cap 3. The two ends of the above rubber sleeve are respectively in abutment with the first limiting convex ring 31 and the second limiting convex ring 23 in the axial direction, thereby realizing the axial limit of the rubber sleeve and ensuring the stable setting of the rubber sleeve.

[0093] It should be pointed out that the structures of the two connecting ends of this fluid connector can be the same or different. The opening and closing of the communication channel 11 between the two connecting ends are realized through the valve cover 2 of the connecting end. Generally speaking, the structures of the two connecting ends are not completely the same. There is no excessive limitation here, as long as the above features are ensured.

[0094] This application also provides a liquid cooling system, and this system includes the above fluid connector.

[0095] It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0096] In this article, specific examples are used to elaborate on the principles and implementation modes of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A connection end, characterized in that, It includes a valve body (1) having a communication channel (11) and a valve cover (2) rotatably provided on the valve body (1). The valve cover (2) includes a communication part (21) for opening and closing the communication channel (11). A stop part (14) axially movable is provided on the valve body (1). A pushing part (13) and a positioning part (213) cooperating with the stop part (14) are provided on the communication part (21). One end of the pushing part (13) protrudes from the communication part (21). In the first state, the stop part (14) and the positioning part (213) are limited and clamped in the circumferential direction of the valve body (1). In the second state, the pushing part (13) at one connection end drives the stop part (14) at the other connection end to release the clamping with the corresponding positioning part (213).

2. The connection end according to claim 1, characterized in that, The pushing part (13) is fixedly arranged relative to the communication part (21).

3. The connecting end according to claim 2, wherein, An activity groove (12) distributed circumferentially is provided on the valve body (1). The other end of the pushing part (13) is movably located in the activity groove (12). The pushing part (13) includes a pushing pin. A limiting hole (212) adapted to the pushing pin is provided on the communication part (21) so that the pushing pin passes through the communication part (21), and the pushing pin is limited and abutted against the limiting hole (212) in the circumferential and radial directions.

4. The connecting end according to claim 3, characterized in that, The pushing pin located in the activity groove (12) is limited and clamped with the limiting hole (212) axially to restrict the pushing pin to move only within the arc length range of the activity groove (12).

5. The connecting end according to claim 3 or 4, characterized in that, The activity groove (12) is provided on the outer circumference of the side of the valve body (1) facing the communication part (21). The valve cover (2) further includes a rotating part (22) connected to the communication part (21) and sleeved on the outer circumference of the valve body (1). The pushing pin located in the activity groove (12) is in contact with the communication part (21) and the valve body (1) respectively on both sides axially, and is in contact with the valve body (1) and the rotating part (22) respectively on both sides radially.

6. The connecting end according to claim 3, wherein The stop part (14) includes a spring pin embedded in the valve body (1). The positioning part (213) includes a locking hole opened on the communication part (21). The spring pin is inserted and matched with the locking hole, and the spring pin has an initial elastic force towards the locking hole.

7. The connection end according to claim 3, characterized in that, The pushing pin in the first state is located at one end of the activity groove (12), and the communication part (21) shuts off the communication channel (11). The pushing pin in the second state is used to reach the other end of the activity groove (12) so that the communication part (21) opens the communication channel (11), and the opening degree of the communication part (21) reaches the maximum.

8. The connection end according to claim 6, wherein A limiting protrusion (142) is provided on the outer circumference of the pin shaft (141) of the spring pin. The limiting protrusion (142) is limited and clamped with the locking hole axially of the valve body (1) to prevent the spring pin from disengaging from the valve body (1).

9. The connecting end according to claim 6, characterized in that The push pin on one of the connection ends can be inserted into the lock hole on the other connection end, and the end of the push pin does not extend beyond the lock hole. The end of the pin shaft (141) of the spring pin is provided with an external chamfer structure.

10. The connection end according to claim 5, characterized in that, It further includes a connection cap (3) fixedly connected to the rotating part (22). The connection cap (3) is sleeved on the outer periphery of the valve body (1) and is rotatably arranged relative to the valve body (1). In the axial direction of the valve body (1), one side of the valve body (1) is in limiting abutment with the connection cap (3), and the other side is in limiting abutment with the communication part (21).

11. The connection end according to claim 1, wherein At least two parallel communication channels (11) are provided on the valve body (1), and corresponding communication holes (211) are provided on the communication part (21). In the first state, the communication holes (211) are misaligned with the communication channels (11) to shut off the communication channels (11); in the second state, there is at least one rotation position of the communication part (21) such that each communication hole (211) is respectively in communication with the corresponding communication channel (11).

12. A fluid connector, characterized in that, It includes two cooperating connection ends, at least one of the connection ends being the connection end according to any one of claims 1-11. Constraint mechanisms are provided on the two connection ends. In the second state, the constraint mechanisms are used to constrain the synchronous movement of the two valve covers (2) in the circumferential direction and to constrain the locking of the two valve covers (2) in the axial and radial directions. The adjacent joint surfaces of the communication parts (21) of the two valve covers (2) are in contact sealing, and the two communication parts (21) remain in sealed communication.

13. The fluid connector according to claim 12, wherein, The constraint structure includes: A second limiting convex ring (23) is provided on the valve cover (2) of the first connection end and extends towards the second connection end. The second limiting convex ring (23) is sleeved on the outer periphery of the rotating part (22) of the second connection end and is in limiting abutment in the radial direction; A limiting groove (231) is opened on the inner wall of the second limiting convex ring (23); A limiting member (16) is provided on the rotating part (22) of the second connection end. The limiting member (16) can extend into the limiting groove (231) to axially clamp the two connection ends.

14. The fluid connector according to claim 13, wherein, The limiting member (16) includes a ball. A radial through hole (224) is provided on the rotating part (22). The ball rolls in the through hole (224), and the ball is axially movable in the through hole (224); A radial groove (17) is provided on the outer periphery of the valve body (1) of the second connection end. In the first position, the first side of the ball protrudes from the inner peripheral surface of the rotating part (22) and is located in the radial groove (17), and the second side of the ball is located in the through hole (224), and the ball is disengaged from the limiting groove (231); in the second position, the outer peripheral surface of the valve body (1) abuts against the first side of the ball, the second side of the ball protrudes from the outer peripheral surface of the rotating part (22) and is located in the limiting groove (231), and the ball is axially clamped with the limiting groove (231).

15. The fluid connector according to claim 14, wherein, A first inclined surface (233) is provided on the side of the second limiting protrusion (23) facing the second connecting end, the first inclined surface (233) is distributed on the inner wall of the second limiting protrusion (23) along the circumferential direction, and a second inclined surface (234) is provided on the groove wall of the limiting groove (231) close to the first inclined surface (233); In the first movement direction, the first inclined surface (233) is used to squeeze the second side of the ball so that the ball is in the first position; in the second movement direction, the second inclined surface (234) is used to squeeze the second side of the ball so that the ball is in the first position.

16. The fluid connector according to claim 13, wherein The restraining mechanism further comprises a clamping groove (232) formed on the second limiting convex ring (23) and a clamping block (24) arranged on the second connecting end, wherein the clamping block (24) extends axially into the clamping groove (232) and abuts against the clamping groove (232) at the circumferential upper limit position.

17. The fluid connector according to claim 12, wherein, The valve body (1) of each of the connecting ends is provided with at least two parallel communication channels (11), the communication channels (11) on the two connecting ends are connected in a one-to-one correspondence, and each of the connecting portions (21) is provided with a corresponding number of communication holes (211); in a first state, the communication holes (211) are misaligned with the communication channels (11) on the two connecting ends so as to shut off the communication channels (11); in the second state, the communication portion (21) has at least one rotational position so that the communication holes (211) are connected to the corresponding communication channels (11) on the two connecting ends.

18. A liquid cooling system, characterized in that, A fluid connector comprising any one of claims 12-17.

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