CN112879645B

CN112879645B - Button type fluid connector capable of realizing miniaturization

Info

Publication number: CN112879645B
Application number: CN202110209909.8A
Authority: CN
Inventors: 马乐; 蔡艳召; 赵颍杰; 段晋伟
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2022-05-20
Anticipated expiration: 2041-02-24
Also published as: CN112879645A

Abstract

The invention relates to a button type fluid connector capable of realizing miniaturization, which comprises a plug and a socket, wherein a valve rod I and a fixing block I are arranged in a plug shell, and a spring I is arranged between the valve rod I and the fixing block I; a valve rod II, a fixed block II, a valve core and a sealing block fixedly connected with the valve core are arranged in the socket shell, and a spring II is arranged between the valve core and the fixed block II; when the head bases are oppositely inserted, the valve rod I axially slides along the central hole of the fixing block I under the action of inserting force to open a fifth flow channel in the plug connector, the sealing block axially slides along the inner wall of the socket shell under the action of inserting force to open a sixth flow channel in the socket connector by enabling the valve core to axially slide along the valve rod II, and finally the fluid channel in the fluid connector is in an open state. The invention has simple structure and small insertion stroke, particularly can greatly reduce the axial connection size of the connector and can meet the requirement of the current tiny liquid cooling system.

Description

Button type fluid connector capable of realizing miniaturization

Technical Field

The invention relates to the technical field of connectors, in particular to a button type fluid connector capable of realizing miniaturization.

Background

Along with the development of liquid cooling heat dissipation technology, more and more electronic equipment has adopted indirect liquid cooling mode to dispel the heat to heating element and device, and for traditional air-cooled heat dissipation mode, indirect liquid cooling mode has advantages such as occupy small, radiating efficiency height, can cancel radiating hole and fan, keeps the inside dustless environment of electronic equipment and operates noiselessly, has improved electronic equipment's reliability greatly, has reduced the noise pollution to the environment. With the development of electronic equipment in the fields of aerospace and the like, microsystems, high performance, high integration and miniaturization become one of important future development directions, and new requirements are also provided for a core component-fluid connector in a liquid cooling system so as to meet the requirements of being used in a tiny liquid cooling system.

The micro liquid cooling system requires that the overall dimension of the fluid connector is smaller, particularly the axial height dimension of the fluid connector needs to be greatly compressed compared with the existing product, but the existing fluid connector product cannot meet the requirement of the axial height dimension far away due to the structural characteristics of the fluid connector product, and the problem exists.

A schematic diagram of a prior art fluid connector is shown in fig. 1. The radial O-shaped ring sealing structure is adopted, the axial insertion stroke is long, the axial height dimension cannot be greatly compressed, and the requirement of the existing micro liquid cooling system cannot be met.

Disclosure of Invention

In order to overcome the defects, the invention provides a button type fluid connector capable of realizing miniaturization, which has the advantages of simple structure, small insertion stroke and small volume and can meet the requirements of the current tiny liquid cooling system.

The invention solves the technical problems by adopting the following technical scheme, and the button type fluid connector capable of realizing miniaturization comprises a plug connector and a socket connector, wherein the plug connector comprises a plug shell, a valve rod I and a fixed block I are arranged in the plug shell, and a spring I is arranged between the valve rod I and the fixed block I and used for providing pretightening force and restoring force for the valve rod I; the socket connector comprises a socket shell, a valve rod II, a fixed block II, a valve core and a sealing block fixedly connected with the valve core are arranged in the socket shell, and a spring II is arranged between the valve core and the fixed block II and used for providing pre-tightening force and restoring force for the valve core; when the head bases are oppositely inserted, the valve rod I axially slides along the central hole of the fixing block I under the action of inserting combination force to enable the valve rod I to be separated from the plug shell, so that a fifth flow channel in the plug connector is opened, the sealing block axially slides along the inner wall of the socket shell under the action of inserting combination force to enable the valve core to axially slide along the valve rod II to enable the valve core to be separated from the socket shell, so that a sixth flow channel in the socket connector is opened, and finally a fluid channel in the fluid connector is in an opening state.

Further, after the plug connector and the socket connector are separated, under the action of the spring I, the position of the valve rod I is restored and forms internal sealing with the plug shell through an O-shaped sealing ring II; under the action of the spring II, the positions of the valve core and the sealing block are restored, and the valve core and the socket shell form internal sealing through an O-shaped sealing ring V.

Furthermore, an O-shaped sealing ring III is further mounted at the front end of the plug shell and used for forming sealing between the head seat and a sealing block on the socket connector when the head seat is plugged oppositely, and a movable sealing structure is further formed between the sealing block and the socket shell through an O-shaped sealing ring VI.

Furthermore, a clamp spring I used for supporting the fixing block I is further installed on the inner wall of the tail portion of the plug shell, and a clamp spring II used for supporting the fixing block II is further installed on the inner wall of the tail portion of the socket shell.

Furthermore, the valve core and the valve rod II are sealed through an O-shaped sealing ring VII.

Furthermore, the front end of the plug shell is also provided with a groove for clearance fit connection with a connecting part at the front end of the socket shell when the head seat is plugged, and even if the central axes of the plug and the socket have deviation, the plug and the socket can be connected in a plugging way.

Furthermore, a first flow passage, a second flow passage and a first cavity for fluid circulation are arranged in the plug shell, and a third flow passage, a fourth flow passage and a second cavity for fluid circulation are arranged in the socket shell.

Further, the sealing block and the valve core are of an integrated structure or are connected together through thread gluing, and the valve rod II and the fixing block II are of an integrated structure or are two independent parts and are fixed together.

Compared with the prior art, the invention has the following advantages:

the fluid connector is simple in structure, greatly simplifies the structural layout of the fluid connector, reduces the installation space of the connector and achieves the purpose of miniaturization of the fluid connector; the fifth flow channel in the plug is opened by the axial sliding of the valve rod I in the plug, and the sixth flow channel in the socket is opened by the axial sliding of the valve core in the socket, so that a fluid passage in the fluid connector is opened, the plug and the socket are small in insertion stroke, the size can be small, the axial connection size of the connector can be reduced greatly, and the requirement of a current small liquid cooling system can be met.

Drawings

FIG. 1 is a schematic view of a prior art fluid connector;

FIG. 2 is a schematic view of a plug configuration of the fluid connector of the present invention;

FIG. 3 is a schematic view of a receptacle structure of the fluid connector of the present invention;

FIG. 4 is a schematic view of the fluid connector plug and receptacle of the present invention in a state just before mating contact;

fig. 5 is a schematic view of a fluid connector plug and receptacle of the present invention mated in place.

Element and symbol description: 1-a plug shell, 2-a valve rod I, 3-a fixed block I, 4-a spring I, 5-a clamp spring I, 6-an O-shaped sealing ring I, 7-an O-shaped sealing ring II, 8-an O-shaped sealing ring III, 9-a first flow passage, 10-a second flow passage, 11-a first cavity, 12-a groove, 13-a socket shell, 14-a valve rod II, 15-a fixed block II, 16-a valve core, 17-a sealing block, 18-a spring II, 19-a clamp spring II, 20-an O-shaped sealing ring IV, 21-an O-shaped sealing ring V, 22-an O-shaped sealing ring VI, 23-an O-shaped sealing ring VII, 24-a third flow passage, 25-a fourth flow passage, 26-a second cavity, 27-a connecting part, 28-a fifth flow passage and 29-a fixed part, 30-sixth flow path.

Detailed Description

In order to further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to specific embodiments.

The button type fluid connector capable of realizing miniaturization comprises a plug connector and a socket connector, as shown in figure 2, the plug connector comprises a plug shell 1, a valve rod I2 and a fixing block I3 which are arranged in the plug shell, a spring I4 arranged between the valve rod I and the fixing block I, a clamp spring I5 arranged on the inner wall of the tail portion of the plug shell and used for supporting the fixing block I and the like. The plug shell provides supporting and protecting functions for the plug, and the outer wall of the plug shell is sealed through the matching surface of the O-shaped sealing ring I6 and the mounting hole. The surface quality of the plug housing has a great influence on the sealing performance and appearance quality of the product. An internal seal is formed between the valve rod I and the plug shell through an O-shaped seal ring II 7, and the size and the surface processing performance of a groove for mounting the O-shaped seal ring II directly influence the sealing function of a product; the front end of the plug shell is also provided with an O-shaped sealing ring III 8 for realizing sealing with a sealing block 17 on the socket connector. The tail of the valve rod I is arranged in a central hole of the fixing block I and can axially slide along the central hole of the fixing block I, the front end of the valve rod I extends out of the front end horizontal plane of the plug shell to form pushing acting force with the valve rod II in the socket when the head seat is plugged, so that the valve rod I is stressed to compress the spring I and axially slide along the central hole of the fixing block I to separate the valve rod I from the plug shell. The spring I is used for providing restoring force and pretightening force for the valve rod I so as to realize tight sealing between the valve rod I and the plug shell; fixed block I plays supporting spring I and the effect of I position of restriction valve rod. The plug housing is constructed such that a first flow passage 9, a second flow passage 10 and a first cavity 11 are formed in the plug housing as shown in fig. 2. The front end of the plug housing is further provided with a recess 12 for connection with a connection portion 27 of the front end of the plug housing by means of a clearance fit.

As shown in fig. 3, the socket connector of the present invention includes a socket housing 13, a valve rod ii 14 and a fixing block ii 15 disposed in the socket housing, a valve core 16 disposed on the periphery of the valve rod ii and capable of sliding along the axial direction of the valve rod ii, a sealing block 17 fixedly connected with the front end of the valve core, a spring ii 18 disposed between the valve core and the fixing block ii and providing restoring force and pre-tightening force for the valve core, and a snap spring ii 19 disposed on the inner wall of the tail portion of the socket housing and used for supporting the fixing block ii. The socket shell provides supporting and protecting functions for the socket and realizes sealing through the matching surface of the O-shaped sealing ring IV 20 and the mounting hole. The surface quality of the socket housing has a great influence on the sealing performance and appearance quality of the product. An internal seal is formed between the valve core and the socket shell through an O-shaped sealing ring V21, and the sealing function of a product is directly influenced by the size and the surface processing performance of a groove for mounting the O-shaped sealing ring V on the valve core; the sealing block 17 is sealed with the connecting portion 27 at the front end of the socket through an O-shaped sealing ring VI 22, the sealing block is matched with the connecting portion 27 of the socket shell to form a movable sealing structure through the O-shaped sealing ring VI, and the flow performance of a product is directly influenced by the processing quality of the inclined plane and the curved surface of the sealing block. And the valve core and the valve rod II are sealed by an O-shaped sealing ring VII 23. Under the action of external force, the sealing block can axially slide along the inner wall of the front end of the socket shell. The sealing block and the valve core can be of an integral structure or can be connected through thread gluing, and the thread gluing refers to that the sealing block and the valve core are connected together through threads after the threads of the sealing block and the valve core are glued. The valve rod II and the fixing block II can be of an integral structure or can be two independent parts which are fixed together. The spring II is used for providing restoring force and pretightening force for the valve core so as to realize sealing between the valve core and the socket shell; and the fixing block II plays a role in supporting the spring II and limiting the position of the valve core. The socket housing is constructed such that a third flow passage 24, a fourth flow passage 25 and a second cavity 26 are formed in the socket housing as shown in fig. 3.

Further, instead of the sealing manner of the O-ring ii 7, the O-ring v 21, the O-ring vi 22, and the O-ring vii 23, a rubber vulcanization manner may be employed. The following scheme can be specifically adopted: the part is placed in a mould, special glue solution is smeared at the groove of the O-shaped sealing ring, then rubber material is placed in the mould, and the rubber material is vulcanized on the part in a vulcanizing machine to form a sealing ring shape. The process mode has the advantages that the sealing element is not easy to fall off (because of the glue solution), and the defects of complex process and high cost.

As shown in fig. 4, when the head base is plugged, when the plug is just contacted with the housing of the socket connector, the valve rod i and the valve rod ii should be just contacted or about to be contacted, and are continuously plugged, because the position of the valve rod ii is fixed, under the action of the plugging force, the valve rod i is stressed to extrude the spring i, the tail of the valve rod i axially slides to the left side shown in fig. 4 along the central hole of the fixed block i, and finally, the valve rod i is separated from the plug housing, so that the fifth flow channel 28 in the plug connector is opened. Meanwhile, as the fixing part 29 in the plug shell is fixed, under the action of the inserting combination force, the fixing part 29 extrudes the sealing block in the socket connector to enable the sealing block to axially slide towards the right side shown in fig. 4 along the inner wall of the connecting part 27 at the front end of the socket shell, as the valve core and the sealing block are integrated or fixedly connected through thread gluing, the valve core is stressed to compress the spring II and axially slide towards the right side shown in fig. 4 along the valve rod II, finally, the valve core and the socket shell are separated through the part sealed by the O-shaped sealing ring V21, a sixth flow passage 30 in the socket connector is opened, and meanwhile, the connecting part 27 at the front end of the socket is inserted into the groove 12 at the front end of the plug to be in clearance fit connection. The state diagram that the headstock inserted and closes in place is shown in fig. 5, and in the recess of plug housing front end was inserted to the connecting portion of socket housing front end, valve rod I and II close contact of valve rod, spring I provided the pretightning force for valve rod I, and valve rod I is spacing through fixed block I. And the spring II provides pretightening force for the valve core. The fixing part 29 in the plug and the sealing block 17 in the socket are in close contact, and the fixing part and the sealing block are sealed through an O-shaped sealing ring III. Taking the case that the fluid flows from the plug to the socket, the fluid sequentially passes through the first flow channel, the first cavity, the fifth flow channel and the second flow channel in the plug connector, enters the socket connector, sequentially passes through the third flow channel, the sixth flow channel and the second cavity in the socket connector, and finally flows out of the fourth flow channel.

After the headstock is separated, under the action of the spring I, the position of the valve rod I is restored and is sealed with the plug shell through the O-shaped sealing ring II, and under the action of the spring II, the positions of the valve core and the sealing block are restored and the valve core and the socket shell are sealed through the O-shaped sealing ring V.

The fluid connector designed by the invention has small plugging stroke, and can realize the miniaturization of the connector, thereby meeting the requirements of a micro liquid cooling system.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and the present invention may also have other embodiments according to the above structures and functions, and is not listed again. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention by those skilled in the art can be made within the technical scope of the present invention.

Claims

1. A button type fluid connector capable of achieving miniaturization comprises a plug connector and a socket connector, and is characterized in that the plug connector comprises a plug shell, a valve rod I and a fixing block I are arranged in the plug shell, a spring I is arranged between the valve rod I and the fixing block I and used for providing pretightening force and restoring force for the valve rod I, and under the action of the pretightening force of the spring I, an inner seal is formed between the valve rod I and the plug shell through an O-shaped sealing ring II; the socket connector comprises a socket shell, a valve rod II, a fixing block II, a valve core and a sealing block fixedly connected with the valve core are arranged in the socket shell, a spring II is arranged between the valve core and the fixing block II and used for providing pretightening force and restoring force for the valve core, and under the pretightening force action of the spring II, the valve core and the socket shell form internal sealing through an O-shaped sealing ring V; when the head bases are oppositely inserted, under the action of inserting combination force, the compression spring I of the valve rod I axially slides along the central hole of the fixing block I to enable the internal seal formed between the valve rod I and the plug shell to be opened, so that a fifth flow channel formed between the O-shaped sealing ring II in the plug connector and the plug shell is opened, the sealing block axially slides along the inner wall of the socket shell under the action of inserting combination force and enables the valve core compression spring II to axially slide along the valve rod II to enable the internal seal formed between the valve core and the socket shell to be opened, a sixth flow channel formed between the O-shaped sealing ring V in the socket connector and the socket shell is opened, and finally the fluid channel in the fluid connector is in an opening state.

2. The fluid connector according to claim 1, wherein after the plug connector and the socket connector are separated, the valve rod I is restored under the restoring force of the spring I and forms an internal seal with the plug housing through an O-shaped sealing ring II; and under the action of the restoring force of the spring II, the positions of the valve core and the sealing block are restored, and the valve core and the socket shell form internal sealing through an O-shaped sealing ring V.

3. The fluid connector of claim 1, wherein the plug housing further comprises an O-ring seal iii mounted on the front end thereof for sealing with a seal block on the receptacle connector during mating of the header, and a movable seal is formed between the seal block and the receptacle housing by an O-ring seal vi.

4. The fluid connector as claimed in claim 1, wherein a snap spring i for supporting the fixing block i is further installed on an inner wall of the tail portion of the plug housing, and a snap spring ii for supporting the fixing block ii is further installed on an inner wall of the tail portion of the socket housing.

5. The fluid connector of claim 1 wherein the valve element and the valve stem ii are further sealed by O-ring vii.

6. The fluid connector of claim 1, wherein the front end of the plug housing is further provided with a recess for clearance-fit connection with the connection portion of the front end of the socket housing when the header is mated with the socket, so that mating connection can be achieved even if there is a deviation in the central axes of the plug and the socket.

7. The fluid connector of claim 1, wherein the plug housing further comprises a first flow passage, a second flow passage and a first cavity for fluid communication, the first flow passage is located between the fixed block i and the plug housing, the second flow passage is located between the valve stem i and the plug housing, and the first cavity is located between the spring i and the plug housing; and a third flow channel, a fourth flow channel and a second cavity for fluid circulation are arranged in the socket shell, the third flow channel is positioned between the valve rod II and the valve core, the fourth flow channel is positioned between the fixing block II and the socket shell, and the second cavity is positioned between the spring II and the socket shell.

8. The fluid connector of claim 1, wherein the sealing block and the valve core are of an integral structure or are connected together by thread gluing, and the valve rod II and the fixing block II are of an integral structure or are two independent parts and are fixed together.