CN112909629A

CN112909629A - Shielding connector, plug and socket

Info

Publication number: CN112909629A
Application number: CN202110252141.2A
Authority: CN
Inventors: 刘向阳; 许蔚; 王恒; 习冰寒; 张志中; 李立新; 韩云钊; 全硒硼; 柳先波; 田旭; 闫丰献; 胡竣浩
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-06-04

Abstract

The invention relates to a shielded connector, a plug and a socket. The shielded connector includes a plug and a socket that are plugged together at the front ends, wherein the plug and the socket both have an outer shell, and the socket outer shell is equipped with a socket shielding ground spring and a device panel through the tail. The conductive sleeve is in contact with the conduction, and a conductive inner shell for the conductive sleeve to be inserted is assembled in the outer plug shell. When the connector is inserted, the conductive inner shell is connected to the conductive sleeve through the plug shielding ground spring on its inner wall. conduction. In the present invention, a conductive inner shell is added at the plug end and a conductive sleeve is added at the socket end, and the shielding connection between the plug and the socket end is realized through the plug shielding grounding spring, and the socket shielding grounding spring at the tail of the conductive sleeve realizes the connection with the equipment panel. Conduction, thereby realizing the conduction of the entire shielding link, and meeting the shielding conduction requirements of the shielded connector whose outer casing is non-conductive. It has the advantages of simple structure, easy assembly and reliable connection.

Description

Shielding connector, plug and socket

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to a shielded connector.

Background

The existing shielded connector is generally characterized in that an outer shell is a conductive shell and a conductive coating, a shielding grounding spring is arranged on a plug or a socket, the outer shell of the plug and the outer shell of the socket are conducted by compressing the shielding grounding spring after the plug and the socket are plugged, and the shielding grounding spring is arranged at the tail of the socket to realize shielding conduction between the outer shell of the socket and an equipment panel. In some special cases, the coating of the housing is required to be non-conductive or in order to reduce the cost of using plastic materials for the housing, shielding continuity cannot be achieved in this way.

Disclosure of Invention

Aiming at the problems in the prior art, the invention designs a shield connector with a non-conductive shell.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. The invention provides a shielded connector, which comprises a plug and a socket, wherein the plug and the socket are inserted in opposite directions at the front ends, the plug and the socket are respectively provided with a non-conductive outer shell, a conductive sleeve which is contacted and conducted with an equipment panel through a socket shielding grounding spring at the tail part is assembled in the outer shell of the socket, a conductive inner shell into which the conductive sleeve is inserted is assembled in the outer shell of the plug, and when the connector is inserted, the conductive inner shell is conducted with the conductive sleeve through the plug shielding grounding spring assembled on the inner wall of the conductive inner shell.

The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.

In the shielded connector, the socket shielding grounding spring is fixedly assembled at the periphery of the conductive sleeve, and when the socket is installed on the equipment panel, the socket is elastically and reliably contacted with the panel opening through the elastic contact protruding from the periphery of the socket.

In the shielded connector, the plug shield ground spring is a C-shaped structure with one side open, and is fixedly fitted in the inner annular groove of the plug inner housing.

In the shielded connector, the plug shield ground spring is in contact conduction with the inserted conductive sleeve through an elastic contact which is cantilevered towards the center and has an inscribed circle diameter smaller than the inner diameter of the plug inner housing.

In the shielded connector, the plug housing is provided with a plug insulator, and the plug insulator has a plurality of axially extending posts on a front end surface thereof, the posts being hollow inside and used for mounting contacts.

In an embodiment of the invention, the pillar is circular, the front end of the pillar has a hole, the hole has a chamfer for insertion guiding, and the outer edge of the pillar and the end surface edge of the plug inner housing are both provided with chamfers having insertion guiding functions.

In the shielded connector, the inserting end of the conductive sleeve is cut into at least one arc extending along the axial direction and used for contacting with the plug shielding grounding spring.

In the shielded connector, the conductive sleeve is provided with a socket insulator therein, and at least one cavity for accommodating the contact is formed on the front end face of the insulator in an axially extending manner, and one side of the cavity is an arc for separating adjacent contacts, and the other side of the cavity is open.

Compared with the prior art, the invention has obvious advantages and beneficial effects. By the technical scheme, the shielding connector can achieve considerable technical progress and practicability, has wide industrial utilization value and at least has the following advantages:

according to the invention, the conductive inner shell is additionally arranged at the plug end, the conductive sleeve is additionally arranged at the socket end, the shielding conduction of the plug and the socket end is realized through the plug shielding grounding spring, and the conduction with the equipment panel is realized through the socket shielding grounding spring at the tail part of the conductive sleeve, so that the conduction of the whole shielding link is realized, and the shielding conduction requirement of the shielding connector with the non-conductive outer shell is met. The connecting device has the advantages of simple structure, easiness in assembly and reliability in connection.

Drawings

FIG. 1 is a schematic view of a shielded connector of the present invention before mating;

FIG. 2 is a schematic diagram of a shield connector according to the present invention in a plugged state;

FIG. 3 is a schematic diagram of a shielded link of the shielded connector of the present invention;

FIG. 4 is a schematic view of a shielded connector plug according to the present invention;

fig. 5 is an exploded view of the shielded connector plug of the present invention;

fig. 6 is another exploded view of the shielded connector plug of the present invention;

FIG. 7 is a front view of a plug mating interface of the shielded connector of the present invention;

FIG. 8 is a perspective view of a plug mating interface of the shielded connector of the present invention;

fig. 9 is an exploded view of the shielded connector receptacle of the present invention;

fig. 10 is a cross-sectional view of a shielded connector receptacle according to the present invention;

fig. 11 is a schematic view of the socket mating interface of the shielded connector of the present invention.

[ description of main element symbols ]

1: plug with a locking mechanism

11: plug outer casing

12: plug inner casing

121: ring groove

122: inner diameter of inner housing of plug

123: guide key

13: plug insulator

14: jack hole

15: pillar

16: chamfering

2: socket with improved structure

21: socket outer casing

22: sleeve barrel

23: flange

24: contact element

25: socket insulator

26: edge chamfer

27: key groove

3: plug shielding grounding spring

31: opening of the container

32: contact point

321: contact tangent circle

4: socket shielding grounding spring

5: equipment panel

51: panel opening

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the shielded connector according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Please refer to fig. 1-11, which are schematic structural diagrams of various parts of a shielded connector according to the present invention; the shielded connector comprises a plug 1 and a socket 2 which are inserted in a front end opposite manner, wherein the socket 2 comprises a non-conductive socket outer shell 21 and a conductive sleeve 22 fixed in the socket outer shell, a socket shielding grounding spring 4 is sleeved at the tail part of the conductive sleeve 22, and the conductive sleeve 22 is in contact conduction with an equipment panel 5 when the socket is fixed on the equipment panel 5 through the socket shielding grounding spring 4. In an embodiment of the present invention, the socket housing body 21 may be a non-conductive plating or plastic. The socket shell is provided with a flange 23, the socket is fixed on the equipment panel 5 through the flange 23, and at the moment, the socket shielding grounding spring is in contact conduction with a panel opening hole matched with the tail of the socket on the equipment panel.

The tail part of the plug 1 is connected with an external cable, the plug 1 comprises a non-conductive plug outer shell 11 and a conductive plug inner shell 12 assembled in the plug outer shell 11, and the plug inner shell 12 is in shielding conduction with a socket end conductive sleeve 22 through a first shielding conductive spring 3 arranged at the front end of the plug inner shell 12. The plug inner housing 12 has a function of fixing and supporting the plug shield ground spring 3, and the plug shield ground spring 3 is fixed on the inner wall of the front end of the plug inner housing 12 and contacts with the conductive sleeve 22 inserted into the socket end through the elastic contact point protruding towards the center to realize conduction of the shield link.

In the embodiment of the present invention, the plug shield ground spring 3 is fixed to an inner circumferential groove of the plug inner housing 12. In an embodiment of the present invention, the plug outer housing 11 may be non-conductive plated or plastic.

After the connector is inserted and installed on the equipment panel, the plug shielding grounding spring 3 is contacted with the socket conductive sleeve 22, and the socket shielding grounding spring 4 arranged at the tail part of the conductive sleeve 22 is contacted with the opening 51 of the equipment panel 5 through the elastic contact at the periphery of the socket shielding grounding spring, so that the conduction of a shielding link from the plug to the equipment panel is realized.

In the embodiment of the present invention, the plug shield ground spring 3 is a C-shaped structure with an opening at one side, the C-shaped plug shield ground spring 3 has a plurality of elastic contacts 32 suspended to the center, a step-shaped annular groove 121 adapted to the C-shaped plug shield ground spring 3 is disposed on the inner wall of the plug inner housing, the step-shaped annular groove 121 not only can realize axial limit and fixation of the plug shield ground spring through its outer groove, but also can provide a compressed deformation space for the contacts of the plug shield ground spring through its inner groove. The contact 32 of the plug shielding grounding spring 3 is a cantilever beam structure or a simple beam structure, and the diameter of a tangent circle formed by the contact is smaller than the inner diameter of the plug inner shell, so that the reliable contact of the contact and the socket conductive sleeve is ensured.

The plug inner housing 12 is also provided with a plug insulator 13, a plurality of posts 15 having cavities are extended from the front end surface of the plug insulator along the axial direction, and plug end contacts are fitted in the cavities inside the posts 15. Preferably, the pillar is circular or square, but is not limited thereto. In the embodiment of the invention, the plug insulator column is circular, the front end of the column is provided with an opening, the opening is provided with a chamfer for inserting and guiding, the outer edge of the column is provided with a chamfer with guiding function, the contact element is a jack 14, and the end surface edge of the plug inner shell is provided with a chamfer with guiding function.

The socket conductive sleeve 22 is also fitted with a socket insulator 25 therein, and the socket insulator 25 has a plurality of axially extending cavities on a front end face thereof for fitting the socket contacts. In the embodiment of the invention, one side of the cavity at the front end of the socket insulator is open, and the other side of the cavity is in a circular arc structure for separating adjacent contact pieces. Preferably, the front end of the socket insulator 25 has a butterfly-shaped protrusion structure which encloses a cavity with one side open for fitting the contact. The cavity structure with one open side can not only reduce the volume of the connector, but also reduce the material consumption of the insulator.

In order to reduce the size of the connector, the conductive sleeve 22 of the present invention has a cylindrical tail portion, and the front end of the conductive sleeve is cut into at least one circular arc through which the conductive sleeve contacts the plug shield grounding spring on the plug inner housing after the connector is plugged. A circular ring-shaped cavity is arranged between the circular arc surface of the sleeve and the outer shell of the socket, so that the inner shell of the plug can be conveniently inserted when the connector is plugged.

In order to facilitate the insertion of the connector, the edge of the conductive sleeve 22 is provided with an edge chamfer, and the edge of the socket housing 21 is also provided with an edge chamfer.

The plug inner shell 12 of the invention is provided with a key or a groove, and the socket outer shell 21 is provided with a groove or a key matched with the key or the groove, so as to realize the guiding and the rotation prevention when the plug inner shell and the socket outer shell are inserted. The cross section of the key or the groove is square or circular arc, and the number of the keys or the grooves is at least 1. If the plug is provided with a key, the socket outer shell is provided with a groove, and if the plug is provided with a groove, the socket outer shell is provided with a key, and the key and the groove are matched when the connector is plugged, so that the guiding and rotation preventing effects are achieved.

The plug shell is provided with two clamping grooves for facilitating force application.

The connection between the plug and the cable is realized by a screw pressing line, and can also be realized by welding and crimping, but not limited to these modes. The screw head may be of a hexagonal-inside configuration, a cross-slot configuration, but is not limited to these configurations.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A shielded connector, comprising a front end plug and a socket, characterized in that: wherein the plug and the socket both have an outer shell, and the socket outer shell is equipped with a conductive shielding grounding spring that is in contact with the device panel through the tail of the socket. The sleeve, the plug outer shell is equipped with a conductive inner casing for the conductive sleeve to be inserted into. When the connector is inserted, the conductive inner casing is connected with the conductive sleeve through the plug shielding grounding spring on its inner wall.

2 . The shielded connector according to claim 1 , wherein the shielding grounding spring of the socket is fixedly assembled on the outer circumference of the conductive sleeve, and when the socket is installed on the panel of the equipment, the socket is installed on the panel of the device through the elastic contact raised on the outer circumference. The point is in elastic and reliable contact with the panel opening.

3 . The shielded connector according to claim 1 , wherein the shielding grounding spring of the plug is a C-shaped structure with one side open, which is fixedly assembled in the inner ring groove of the inner casing of the plug. 4 .

4 . The shielded connector according to claim 3 , wherein the shielding grounding spring of the plug is inserted into the connector through an elastic contact whose inscribed circle diameter is smaller than the inner diameter of the inner shell of the plug and is suspended toward the center. The conductive sleeve contacts and conducts.

5 . The shielded connector according to claim 1 , wherein a plug insulator is installed in the inner housing of the plug, and the front end surface of the plug insulator has a plurality of inner hollows extending along the axial direction for assembling contacts. 6 . pieces of pillars.

6 . The shielded connector according to claim 5 , wherein the post is circular, has an opening at the front end, and the aperture is provided with a chamfer for inserting and guiding, and the outer edge of the post and the plug The edges of the end face of the inner shell are also provided with chamfers with inserting and guiding functions.

7 . The shielded connector according to claim 1 , wherein the mating end of the conductive sleeve is cut into at least one arc extending in the axial direction for contacting with the shielding ground spring of the plug. 8 .

8 . The shielded connector according to claim 1 , wherein a socket insulator is installed in the conductive sleeve, and at least one cavity for accommodating contacts is formed on the front end face of the insulator along the axial direction. 9 . , one side of the cavity is an arc for separating adjacent contact pieces, and the other side is open.

9. A shielded connector socket, characterized in that it is the socket according to any one of claims 1-8.

10. A shielded connector plug, characterized in that it is the plug according to any one of claims 1-8.