CN-121983806-A - Sand-dust-resistant direct-plug connector plug and sand-dust-resistant direct-plug connector

CN121983806ACN 121983806 ACN121983806 ACN 121983806ACN-121983806-A

Abstract

The invention discloses a sand-dust-resistant direct-plug connector plug and a sand-dust-resistant direct-plug connector, and belongs to the technical field of electric connectors. The sand-dust-resistant direct-plugging connector plug comprises a plug shell and a plug insulator component, wherein a locking ring is fixedly arranged on the plug shell, a plurality of elastic claws are uniformly distributed on the circumference of the locking ring and are used for locking and matching with a socket, a connecting cap is sleeved on the outer side of the plug shell and sleeved on the outer side of the locking ring and can reciprocate along the front-back direction, an unlocking ring is fixedly connected onto the connecting cap, an elastic compression assembly is arranged between the rear end of the connecting cap and the plug shell, the elastic compression assembly is used for limiting the connecting cap to move backwards by pretightening force, and the inner wall of the unlocking ring is used for sealing and matching with the socket. The invention abandons the traditional thread/bayonet rotation operation mode, can realize quick direct insertion and direct pulling, has a locking structure insensitive to sand dust, and has excellent sealing protection and unexpected unlocking prevention capabilities.

Inventors

TANG CHENLONG
HUANG XIAOYAN
JIN YAFANG
ZHAO GUANGFU
ZHOU CHAOXU
Xia Renshan
SONG YUJIE
WANG YANYAN
DING WEIJIAN

Assignees

中航光电科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260408

Claims (10)

1. The sand-dust-resistant direct-plugging connector plug comprises a plug shell (1) and a plug insulator component (2), wherein the plug insulator component (2) is assembled in the plug shell (1), and is characterized in that a locking ring (3) is fixedly arranged on the plug shell (1), a plurality of elastic claws (301) are uniformly distributed in the circumferential direction of the locking ring (3), the elastic claws (301) are used for locking and matching with a socket, a connecting cap (5) is sleeved on the outer side of the plug shell (1), the connecting cap (5) is sleeved on the outer side of the locking ring (3) and can reciprocate along the front-back direction, an unlocking ring (6) is fixedly connected onto the connecting cap (5), an elastic compression assembly (7) is arranged between the rear end of the connecting cap (5) and the plug shell (1), and the pretightening force of the elastic compression assembly (7) limits the connecting cap (5) to move backwards, and the inner wall of the unlocking ring (6) is used for sealing and matching with the socket; The front end of the spring claw (301) is provided with a first guide surface (302) for guiding and matching with the insertion end of the socket shell (8) to enable the spring claw (301) to elastically expand outwards, and the unlocking ring (6) is provided with a third guide surface (601) for guiding and matching with the first guide surface (302) to enable the spring claw (301) to elastically expand outwards.
2. The sand-dust resistant direct plug connector plug according to claim 1, wherein a shoulder (101) is arranged on the plug housing (1), and the locking ring (3) is connected with the shoulder (101) in a matched manner so that the locking ring (3) is fixed on the plug housing (1).
3. The sand-dust resistant direct plug connector plug according to claim 2, wherein the elastic pressing assembly (7) comprises a nut (702) in threaded connection with the outer wall of the plug housing (1), a spring (701) is arranged between the nut (702) and the rear end of the connecting cap (5), and the nut (702) is used for providing forward pretightening force for the connecting cap (5) through the spring (701).
4. A sand-dust resistant direct plug connector plug according to claim 3, wherein the spring claw (301) is an elastic sheet body integrally formed at the end part of the locking ring (3), and the spring claw (301) can be elastically expanded outwards after being subjected to external force and automatically reset after the external force is removed.
5. The sand-dust resistant direct plug connector plug according to claim 4, wherein the unlocking ring (6) and the connecting cap (5) are fixedly connected in any one of riveting fixing, threaded connection fixing or welding fixing, and the spring (701) is a corrugated spring.
6. The sand-dust resistant direct plug connector plug according to any one of claims 1 to 5, wherein a fit clearance between an outer peripheral wall of the locking ring (3) and an inner peripheral wall of the connecting cap (5) is larger than a maximum particle diameter of sand particles in a target use environment.
7. A connector adopting the sand-dust-resistant direct-plugging connector plug according to any one of claims 1-6, comprising a socket, wherein the socket and the front end of the sand-dust-resistant direct-plugging connector plug are mutually matched, the socket comprises a socket shell (8) and a socket insulator component (9), the socket insulator component (9) is assembled in the socket shell (8), and the connector is characterized in that a locking groove (801) is formed in the outer side wall of the socket shell (8), the locking groove (801) is matched with the elastic claw (301), the elastic claw (301) can be in locking fit with the locking groove (801) to realize locking of the sand-dust-resistant direct-plugging connector plug and the socket, an outer sealing ring (10) is fixedly assembled between the outer wall of the socket shell (8) and the inner wall of the unlocking ring (6), and the outer sealing ring (10) is in sealing fit; The plug-in end of the socket shell (8) is provided with a second guide surface (802), and the second guide surface (802) is used for being matched with the first guide surface (302) to enable the elastic claw (301) to elastically expand outwards; When the sand-dust-resistant direct-plugging connector plug and the socket are plugged in place, the elastic claw (301) is clamped into a locking matching structure formed in the locking groove (801) under the action of self elastic force, the inner wall of the unlocking ring (6) and the outer wall of the socket shell (8) are tightly attached to the outer sealing ring (10) to form a sealing protection structure wrapping the locking matching structure, when the connecting cap (5) is pulled, the connecting cap (5) compresses the elastic pressing component (7) and drives the unlocking ring (6) to synchronously move backwards, and the unlocking ring (6) abuts and applies force to enable the elastic claw (301) to elastically spread outwards and separate from the locking groove (801), so that unlocking separation of the sand-dust-resistant direct-plugging connector plug and the socket is realized.
8. The sand-dust resistant direct plug connector according to claim 7, wherein the locking groove (801) is an annular groove formed in the outer side wall of the socket housing (8), and the notch size of the locking groove (801) is matched with the end size of the spring claw (301).
9. The sand-dust resistant direct plug connector according to claim 8, wherein an inner sealing ring (11) is arranged between the inner wall of the socket housing (8) and the outer wall of the plug end of the plug housing (1), and the inner sealing ring (11) is in sealing fit.
10. The sand-dust resistant direct plug connector according to claim 9, wherein the plug insulator component (2) is provided with a wiring terminal (12), the socket insulator component (9) is provided with a wiring socket (13), and the wiring terminal (12) is used for being in plug-in fit with the wiring socket (13).

Description

Sand-dust-resistant direct-plug connector plug and sand-dust-resistant direct-plug connector Technical Field The invention belongs to the technical field of electric connectors, and particularly relates to a sand-dust-resistant direct-plug connector plug and a sand-dust-resistant direct-plug connector. Background The electric connector is a core basic component for realizing circuit modularized connection and signal and electric energy transmission, and the connection reliability, the operation convenience and the environmental adaptability of the electric connector directly determine the overall performance of the electric system. In the electrical connection of high-current products, the current mainstream connector locking mode is threaded connection or bayonet connection, and the locking mode realizes locking and unlocking by means of the rotary pair cooperation between a connecting nut and a shell, so that the connector locking mechanism is a traditional structural mode long-term used in the field. In the application scene that sand dust environment and narrow installation space are required to be deployed quickly, the connector of the traditional screw/bayonet connection has the technical defects that firstly, the operation characteristic is limited, the screw/bayonet connection can be locked or unlocked only by rotating a connecting nut by a specific angle, the operation time of plugging and separating is long, the use requirement of quick deployment cannot be met, the rotation operation needs a large radial operation space and is difficult to realize in the narrow installation space, secondly, the sand dust environment adaptability is poor, the locking structure of the screw/bayonet is in precise clearance fit, the fit clearance is usually smaller, fine sand dust particles are very easy to enter the precise fit clearance to be accumulated in the sand dust and sand wind environment, the connecting structure is blocked, the connector cannot be plugged or unlocked normally, the reliability of circuit connection is seriously affected, thirdly, the unexpected unlocking resistance is insufficient, the traditional structure is loose by virtue of self-fit of the screw or bayonet, when the external force such as vibration and impact acts, the connecting nut is easy to loose, unexpected unlocking is caused, the circuit is caused, and the potential safety hazards to the connection stability requirements exist in the fields such as high. To the above technical problems, a connector capable of realizing rapid locking and separation, and the locking structure is insensitive to sand and dust, and integrates sand and dust protection and unexpected unlocking prevention functions, so that the connector is simultaneously adapted to the severe environment of sand and dust, the narrow installation space and the rapid deployment of the connector, and the prior art has no mature technical scheme for simultaneously solving all the problems. Disclosure of Invention Aiming at the defects in the background technology, the invention provides a sand-dust-resistant direct-plug connector plug and a sand-dust-resistant direct-plug connector, which solve the problems that the traditional connector plug needs a larger radial operation space and sand dust is easy to cause the clamping stagnation of a connecting structure. The technical scheme is that the sand-dust-resistant direct plug connector plug comprises a plug shell and a plug insulator component, wherein the plug insulator component is assembled in the plug shell, a locking ring is fixedly arranged on the plug shell, a plurality of elastic claws are uniformly distributed in the circumferential direction of the locking ring and used for being in locking fit with a socket, a connecting cap is sleeved on the outer side of the plug shell and sleeved on the outer side of the locking ring and can reciprocate along the front-back direction, an unlocking ring is fixedly connected onto the connecting cap, an elastic compression assembly is arranged between the rear end of the connecting cap and the plug shell, the elastic compression assembly is used for limiting the connecting cap to move backwards, the inner wall of the unlocking ring is used for being in sealing fit with the socket, a first guide surface used for being in guiding fit with the plug-in end of the socket shell so as to enable the elastic claws to be outwards elastically expanded is arranged on the front end of the unlocking ring, and a third guide surface used for being in guiding fit with the first guide surface to enable the elastic claws to be outwards elastically expanded is arranged on the unlocking ring. Preferably, a shoulder is arranged on the plug shell, and the locking ring is connected with the shoulder in a matched manner so as to fix the locking ring on the plug shell. Preferably, the elastic compression assembly comprises a nut in threaded connection with the outer wall of the plug housing, a spring is a