CN109119818B

CN109119818B - Circular connector and connector assembly

Info

Publication number: CN109119818B
Application number: CN201710495496.8A
Authority: CN
Inventors: 李瑶; 胡国闯
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2017-06-26
Filing date: 2017-06-26
Publication date: 2021-06-04
Anticipated expiration: 2037-06-26
Also published as: CN109119818A

Abstract

The invention relates to a circular connector and a connector assembly. The connector subassembly includes plug connector and socket connector, plug connector includes plug housing, plug housing periphery rotates and is equipped with the adapter sleeve, plug connector still includes the grafting end of inserting each other with the socket connector and closing, the outer peripheral face of grafting end is equipped with the spline that splines, the sealing washer is installed to the periphery of spline that splines, be equipped with the annular groove who offers the radial deformation space of sealing washer when the sealing washer is extruded by the grafting end front end face axial of socket connector in the position department corresponding to the sealing washer on the inner peripheral surface of adapter sleeve. The annular groove enables the sealing ring to have a large enough deformation space when the sealing ring is axially extruded and radially deformed by the socket shell, meanwhile, the sealing ring in the gap cannot be damaged due to the fact that the gap between the inner wall of the connecting sleeve and the spline is too small when the connecting sleeve is screwed, the service life of the sealing ring is prolonged, resistance in screwing is reduced, and screwing is more labor-saving.

Description

Circular connector and connector assembly

Technical Field

The invention relates to a circular connector and a connector assembly.

Background

Circular connectors are generally required to have characteristics such as sealing, vibration resistance, looseness prevention and the like so as to be used in the fields of aviation, aerospace, weapons, well logging and the like. The round plug connector and the round socket connector are locked and connected through the connecting sleeve after being plugged, the connecting sleeve is rotatably assembled on the plug connector shell, a plugging space for the plugging end of the socket connector to be plugged is formed between the plugging end of the plug connector and the connecting sleeve, and the outer peripheral surface of the plugging end of the plug connector is also provided with a rotation stopping spline for performing rotation stopping matching with the plugging end of the socket connector. In order to seal the receptacle connector and the receptacle connector, a seal ring is generally mounted on an outer periphery of a mating end of the plug connector, and after the plug connector and the receptacle connector are mated, the seal ring is pressed and deformed by an end surface of the mating end of the receptacle connector to seal the plug and the receptacle.

However, the above connector has the following problems: after the sealing ring is arranged in the space, when the connecting sleeve is a threaded sleeve and the threaded sleeve is screwed, the internal thread of the threaded sleeve can scratch the sealing ring; when the connecting sleeve is a snap connecting sleeve, although the connecting sleeve has no threads inside, the sealing ring is still squeezed and damaged due to friction between the inner circumferential surface of the connecting sleeve and the sealing ring when the connecting sleeve is screwed. Therefore, the two connecting sleeves can damage the sealing ring, the service life of the sealing ring is further influenced, and meanwhile, resistance in the screwing process is large, and great labor is wasted.

Disclosure of Invention

The invention aims to provide a circular connector which can prevent a sealing ring from being damaged when the connecting sleeve rotates; it is also an object of the present invention to provide a connector assembly using the circular connector.

In order to achieve the purpose, the circular connector adopts the following technical scheme:

the technical scheme 1: the circular connector includes the casing, and the casing periphery is rotated and is equipped with the adapter sleeve, circular connector still including be used for with the socket connector each other the grafting end of inserting and closing, the outer peripheral face of grafting end is equipped with the spline that splines, be equipped with the annular groove that is used for providing the deformation space of radial deformation of sealing washer when the sealing washer is provided by socket grafting end front end face axial extrusion on the inner peripheral surface of adapter.

The technical scheme 2 is as follows: on the basis of technical scheme 1, each spline of the spline is provided with an accommodating groove of a sealing ring at a position corresponding to the sealing ring.

Technical scheme 3: on the basis of technical scheme 2, the diameter of the circle that the tank bottom of holding tank is located is greater than the internal diameter of sealing washer.

The technical scheme 4 is as follows: on the basis of any one of the technical schemes 1 to 3, the sealing ring is a V-shaped sealing ring with an opening deviating from the front end surface of the plugging end of the socket connector.

The technical scheme 5 is as follows: on the basis of any one of the technical schemes 1 to 3, the connecting sleeve is a threaded connecting sleeve.

The circular connector has the beneficial effects that: the inner peripheral surface of the connecting sleeve of the circular connector is provided with the annular groove, the annular groove is arranged to ensure that the sealing ring has a large enough deformation space when being axially extruded and radially deformed by the socket shell, meanwhile, the sealing ring in the gap cannot be scratched or extruded due to the undersize gap between the inner wall of the connecting sleeve and the spline when the connecting sleeve is screwed, the service life of the sealing ring is prolonged, in addition, the sealing ring is not extruded any more when the connecting sleeve is screwed, so that the resistance when the connecting sleeve is screwed is reduced, and the screwing is more labor-saving.

The connector assembly adopts the following technical scheme:

the technical scheme 1: the connector subassembly includes plug connector and socket connector, and plug connector includes plug housing, and plug housing periphery rotates and is equipped with the adapter sleeve, and plug connector and socket connector are including plug grafting end and the socket grafting end of inserting each other and closing, and the outer peripheral face of plug grafting end is equipped with the spline that splines, and the sealing washer is installed to the periphery of spline that splines, and socket connector includes socket housing, be equipped with the annular groove who offers the deformation space of sealing washer radial deformation when the sealing washer is pushed by socket grafting end front end face axial on the inner peripheral surface of adapter sleeve in the position department corresponding to the sealing washer.

The technical scheme 6 is as follows: on the basis of any one of the technical schemes 1 to 3, the periphery of the socket connector is provided with a color ribbon, and the connecting sleeve can be covered on the color ribbon to indicate the in-place information when being connected with the socket connector.

The connector assembly has the beneficial effects that: the annular groove is formed in the inner peripheral surface of the connecting sleeve of the plug connector of the connector assembly, the annular groove is arranged to ensure that the sealing ring has a large enough deformation space when the sealing ring is axially extruded and radially deformed by the socket shell, meanwhile, the sealing ring in the gap cannot be scratched or extruded due to the fact that the gap between the inner wall of the connecting sleeve and the spline is too small when the connecting sleeve is screwed, the service life of the sealing ring is prolonged, in addition, the sealing ring is not extruded any more when the connecting sleeve is screwed, resistance in screwing is reduced, and screwing is more labor-saving.

Furthermore, the seal ring can be axially stopped and limited by the arrangement of the accommodating groove, namely the seal ring is fixed, compared with the traditional gluing mode for fixing the seal ring, the seal ring has the advantages of convenient assembly and disassembly and high assembly efficiency,

further, because the diameter of the tank bottom place circle of holding tank is greater than the internal diameter of sealing washer for the sealing washer can cramp in the holding tank, and the sealing washer is difficult for jumping out from the holding tank after putting into the holding tank through the force, guarantees that sealing washer and holding tank combination are inseparable, and is firm reliable when the sealing washer is installed promptly.

Furthermore, the V-shaped sealing ring has good compressibility and large deformation, and can better seal a connecting gap between the socket and the plug.

Furthermore, the connecting sleeve is connected with the socket connector in a screwing threaded connection mode, and the connection is convenient and reliable.

Furthermore, the arrangement of the color band on the socket connector enables the plug to be clearly seen after the plug is connected with the socket connector in place, so as to remind a user of connecting in place.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a connector assembly of the present invention;

fig. 2 is a schematic structural view of the plug connector of fig. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic view of the receptacle connector of FIG. 1;

in the figure: 1-plug connector, 11-plug shell, 12-plug end, 13-connecting sleeve, 131-annular groove, 14-insulator, 15-rotation stopping spline, 151-accommodating groove, 16-sealing ring, 2-socket connector, 21-socket shell, 22-color band and 3-contact piece.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

In a specific embodiment of the connector assembly of the present invention, as shown in fig. 1, the connector assembly includes a plug connector 1 and a receptacle connector 2, the two connectors are mutually inserted and matched to realize conduction of wire harnesses at two ends, the connector assembly of this embodiment is an electrical connector assembly, and the wire harnesses transmit electrical signals.

As shown in fig. 2 and 3, the plug connector 1 includes a plug housing 11, and contacts 3 are enclosed at a plugging end 12 of the plug housing 11 through an insulator 14, and the contacts 3 are adapted to be plugged into the contacts 3 on the receptacle connector 2. The insulator 14 projects out of the plug housing 11 and extends to one side in the plugging direction. The plug end 12 of the plug housing 11 is rotatably assembled with a connecting sleeve 13 on the periphery, one end of the connecting sleeve 13 is rotatably matched with the plug housing 11, the other end of the connecting sleeve 13 covers the insulator 14, and a stopping structure is further arranged at the matching position of the connecting sleeve 13 and the plug housing 11, wherein the stopping structure is mutually matched in an axial stopping manner, so that the connecting sleeve 13 can only rotate relative to the plug housing 11 and can not move in the axial direction. The connecting sleeve 13 has an internal thread for matching with the external thread on the socket housing 21 to realize the connection and fixation of the plug connector 1 and the socket connector 2. The connecting sleeve 13 and the outer peripheral surface of the insulator 14 have a gap therebetween, i.e., the insulator 14 does not contact the connecting sleeve 13.

As shown in fig. 3, the connecting sleeve 13 is provided with an annular groove 131 on the inner peripheral surface thereof, and the annular groove 131 is disposed closely to the plug housing 11. Be equipped with spline 15 on the insulator 14, spline 15 is equipped with holding tank 151 corresponding to the position of annular groove 131 only, be equipped with sealing washer 16 in the holding tank 151, the size of holding tank 151 guarantees that sealing washer 16 is the tight fit with holding tank 151 after packing into holding tank 151 through the mode of adorning by force, sealing washer 16 has certain pretightning force promptly, the cell wall of holding tank 151 can carry out the axial to sealing washer 16 spacing, prevent at grafting in-process sealing washer 16 along axial displacement, because sealing washer 16 cramps in holding tank 151, overlap promptly in the holding tank 151 on the spline periphery, guarantee the reliability of the installation of sealing washer 16. The sealing ring 16 is an O-shaped rubber ring with a U-shaped cross section, and has good elastic deformation performance.

As shown in fig. 4, the socket includes a socket housing 21, the contact 3 is enclosed in the socket housing 21 through an insulator 14, an ink ribbon 22 is provided on the outer periphery of the socket housing 21, and the position of the ink ribbon 22 corresponds to the outer edge position of the connecting sleeve 13 after the plug and the socket are inserted into position, so as to indicate the insertion position information of the plug connector 1 and the socket connector 2.

The connector assembly of the present invention, when in use: when the plug connector 1 is inserted into the socket connector 2, the plug and the socket are close to each other by screwing the connecting sleeve 13 during plugging, the sealing ring 16 is not pressed by the connecting sleeve 13 due to the existence of the annular groove 131 arranged at the position of the inner side of the connecting sleeve 13 corresponding to the sealing ring 16 during screwing the connecting sleeve 13, so that the sealing ring is not scratched by the connecting sleeve 13, the socket housing 21 starts to contact the sealing ring 16 and presses the sealing ring 16 towards the end surface of the plug housing 11 as the plugging progresses, as shown in fig. 1, the annular groove 131 can provide a deformation space for radial deformation of the sealing ring 16, so that the sealing ring 16 can have a larger compression deformation amount, and the screwing can be stopped when the outer end of the connecting sleeve 13 reaches the position of the specified plugging in place of the color ribbon 22 by further compression, and completing the insertion.

In other embodiments: the connector assembly can also be used for transmitting optical signals, and the connector assembly is an optical connector assembly and comprises an optical connector plug and an optical connector socket, wherein the plug and the socket are still connected by adopting a connecting sleeve and sealed by virtue of a sealing ring; the connecting sleeve can be connected with the socket connector in a buckling connection mode instead of being provided with internal threads; the cross-section of the annular groove is not limited to the rectangular shape shown in fig. 1-3, but may be replaced by a circular arc, a trapezoid, etc.; the sealing ring can be replaced by a Y-shaped sealing ring or an O-shaped sealing ring and the like.

Embodiments of the circular connector of the present invention: the circular connector may be a socket connector or a plug connector, and the embodiment of the plug connector is the same as the embodiments of the plug connector in the embodiments of the connector assembly of the present invention, and thus, the description thereof is omitted. When the circular connector is a socket connector, the connecting sleeve is rotatably assembled on the socket shell and axially blocked relative to the socket shell, and when the plug connector and the socket connector are oppositely plugged, the plug connector is connected with the plug shell through the connecting sleeve on the socket shell; the sealing ring can be replaced by an elastic sealing ring made of other materials.

Claims

1. The circular connector comprises a shell, wherein a connecting sleeve is rotatably assembled on the periphery of the shell, the circular connector also comprises a plugging end which is used for being plugged with the socket connector, a rotation stopping spline is arranged on the peripheral surface of the plugging end, and a sealing ring is arranged on the periphery of the rotation stopping spline; the plug end is packaged with a contact element through an insulator, the insulator extends out of the shell and extends towards one side of the plug direction, and the rotation stopping spline is arranged on the insulator; an accommodating groove of the sealing ring is formed in each spline of the rotation stopping spline at a position corresponding to the sealing ring; the diameter of the circle where the groove bottom of the accommodating groove is located is larger than the inner diameter of the sealing ring; after the circular connector is connected with the socket, the end face, back to the plugging direction, of the sealing ring is pressed on the shell; the groove depth of the accommodating groove is smaller than the height of the rotation stopping spline.

2. The circular connector of claim 1, wherein the seal is a V-seal with an opening facing away from a front face of the mating end of the receptacle connector.

3. The circular connector according to claim 1, wherein the connecting sleeve is a threaded connecting sleeve.

4. The connector assembly comprises a plug connector and a socket connector, wherein the plug connector comprises a plug shell, a connecting sleeve is rotatably assembled on the periphery of the plug shell, the plug connector and the socket connector comprise a plug inserting end and a socket inserting end which are mutually inserted, a rotation stopping spline is arranged on the peripheral surface of the plug inserting end, a sealing ring is arranged on the periphery of the rotation stopping spline, and the socket connector comprises a socket shell; the plug is characterized in that a contact element is packaged at the plug end through an insulator, the insulator extends out of the plug shell and extends towards one side of the plugging direction, and the rotation stopping spline is arranged on the insulator; an accommodating groove of the sealing ring is formed in each spline of the rotation stopping spline at a position corresponding to the sealing ring; the diameter of the circle where the groove bottom of the accommodating groove is located is larger than the inner diameter of the sealing ring; after the plug connector is connected with the socket connector, the end face of the sealing ring, which is back to the plugging direction, is pressed on the plug shell; the groove depth of the accommodating groove is smaller than the height of the rotation stopping spline.

5. The connector assembly of claim 4, wherein the seal is a V-seal with an opening facing away from a front face of the mating end of the receptacle connector.

6. The connector assembly of claim 4, wherein the nipple is a threaded nipple.

7. The connector assembly of claim 4, wherein the receptacle connector has a color band on its outer periphery for indicating the locked position of the connection sleeve.