CN105470723A - Electric connector assembly - Google Patents

Abstract

The invention provides an electrical connector assembly, including a plug and a socket extending left and right, a sealing ring groove with an opening facing the socket is provided on the plug housing, a graphite sealing ring is provided in the sealing ring groove, and the graphite sealing ring has a It is on the sealing mating surface that is in sealing fit with the socket housing. The plug housing of the electrical connector assembly of the present invention is provided with a sealing ring groove with an opening facing the socket, and a graphite sealing ring is provided in the sealing ring groove. The graphite is resistant to high temperature and has neutron deceleration. The sealed connection can ensure good sealing effect when the electrical connector assembly is used in nuclear power, aerospace and high temperature environments, and greatly extend the service life of the electrical connector assembly.

Description

Electrical Connector Assembly

technical field

The invention relates to a conductive connection device, in particular to an electrical connector assembly which can be applied to harsh environments such as high temperature, nuclear power and aerospace.

Background technique

With the continuous development of electric power communication, electronic equipment such as mobile communication is developing towards miniaturization and integration, and electrical connector components play a very important role as the interface for electrical signal transfer and transmission of electronic equipment. The electrical connector assembly generally includes a plug, a socket, and a connecting nut for connecting the plug and the socket. The plug includes a plug housing, and the socket includes a socket housing. , The plug housing and the socket housing are respectively provided with pins and jacks, and are locked and connected by connecting nuts when the plug and socket are plugged together.

In order to ensure the tightness of the connection of the electrical connector components, a sealing ring is generally provided on the connection mating surface of the connecting nut and the plug or socket, but the sealing rings of the existing electrical connector components are generally made of polymers such as rubber and polyurethane. Made of insulating materials, when the electrical connector components are used in high temperature, high radiation and other environments, the sealing rings made of these polymer insulating materials are easy to age, affecting the dustproof, waterproof, and dustproof of the electrical connector components. The normal use of electrical connector components seriously restricts the service life of electrical connector components in high temperature and high radiation environments.

Contents of the invention

The object of the present invention is to provide an electrical connector assembly to solve the problem that the existing electrical connector assembly is not suitable for high temperature and high radiation environments.

In order to solve the above technical problems, the electrical connector assembly of the present invention adopts the following technical solution: the electrical connector assembly includes a plug and a socket extending left and right, and a sealing ring groove with an opening facing the socket is provided on the plug housing, and the sealing ring groove A graphite sealing ring is provided in the middle, and the graphite sealing ring has a sealing mating surface for blocking and sealing cooperation with the socket housing.

The socket housing has a pair of sockets for inserting the plug end of the plug, the outer periphery of the plug housing is provided with an outer convex edge, the sealing ring groove is arranged on the left side of the outer convex edge, and the graphite The sealing mating surface of the sealing ring is sealingly matched with the right end hole of the socket.

The electrical connector assembly further includes a connecting nut, which is axially fixed relative to the plug housing, and the socket housing and the connecting nut are connected through transmission threads.

The electrical connector assembly also includes a locking structure for locking and limiting the connecting nut. The locking structure includes a nut ring groove on the left end of the connecting nut, a socket ring groove on the outer periphery of the socket housing And the locking wire arranged in the ring groove of the socket, the ring groove of the socket and the ring groove of the nut are opposite to each other at the insertion position, and the locking wire has a radial expansion when the socket housing and the connecting nut are screwed in place. And contact the groove wall of the socket ring groove and the nut ring groove respectively to lock the connecting nut in the axial direction and the groove of the nut ring groove when the socket housing and the connecting nut move axially relative to each other The wall squeezes to shrink radially and slides out of the nut ring groove to release the unlocking position for axial locking of the connecting nut.

Insulators for fixing pin contacts and/or socket contacts are respectively arranged in the plug housing and the socket housing, and the insulators are made of ceramic materials.

The plug housing of the electrical connector assembly of the present invention is provided with a sealing ring groove with an opening facing the socket, and a graphite sealing ring is provided in the sealing ring groove. The graphite is resistant to high temperature and has neutron deceleration. The sealed connection can ensure good sealing effect when the electrical connector assembly is used in nuclear power, aerospace and high temperature environments, and greatly extend the service life of the electrical connector assembly.

Furthermore, since graphite is not easily deformed elastically, the connecting nut and the socket shell are connected by transmission threads, which can increase the locking force between the connecting nut and the socket, and can make the graphite sealing ring have a certain amount of compression deformation, ensuring The seal works.

Furthermore, the locking of the connecting nut and the socket housing is realized through the elasticity of the locking wire itself expanding radially outward, and the connection is realized by squeezing the locking wire through the groove wall of the nut ring groove to shrink radially inward. The unlocking of the nut and the socket housing has a simple structure and is convenient for disassembly and assembly.

Description of drawings

1 is a schematic structural view of Embodiment 1 of the electrical connector assembly of the present invention;

Fig. 2 is a schematic structural diagram of the plug housing in Fig. 1;

Fig. 3 is the structural representation of connecting nut in Fig. 1;

Fig. 4 is a schematic structural view of the locking wire in Fig. 1;

Fig. 5 is a schematic structural view of the socket housing in Fig. 1;

FIG. 6 is a schematic structural diagram of the jack insulator in FIG. 1 .

detailed description

Embodiment 1 of the electrical connector assembly of the present invention: as shown in Figures 1-6, it includes a plug, a socket, and a connecting nut connecting the plug and the socket. The hole insulator 20, the plug housing 2 is a hollow cylindrical structure extending left and right, the jack insulator 20 is located in the hollow cavity, and the double-headed jack 7 extending left and right is fixed in the jack insulator 20, and the outer periphery of the plug housing is close to The right end position is provided with a protruding radially outward protruding ring, and the left side of the protruding ring is provided with a sealing ring groove opening to the left, and a high-purity graphite sealing ring 5 is installed in the sealing ring groove, and the left end of the graphite sealing ring has a The sealing mating surface used to press and seal the right end of the socket housing when the plug and socket are at the plugging position, so as to ensure the sealing of the connection between the plug and the socket. For plugging and matching with the socket of the socket, the left sealing surface of the graphite sealing ring is used for sealing and matching with the right end hole of the socket, and the left end of the plug housing 2 is provided with a diameter of The inwardly extending edge is used to block the jack insulator 20 in the leftward direction. The right end of the plug housing 2 is fixedly installed by the plug insulator and the left end is inserted into the double-headed jack The plug pin at the right end of 7, the plug insulator is fixed on the right end of the plug housing through the transfer ring 8, and its left end is pressed against the right end of the jack insulator 20 and cooperates with the inversion edge to fix the jack insulator in the plug housing , in order to ensure that the jack insulator 20 will not rotate relative to the plug housing, the inner peripheral surface of the plug housing is also provided with a locking block extending left and right, correspondingly, the jack insulator 20 is provided with the locking block Guide the chute 200 for sliding fit in the left and right directions, so that the jack insulator 20 is circumferentially locked relative to the plug housing 2 during use, ensuring that the position of the double-headed jack in the jack insulator is fixed.

The socket includes a socket housing 1 and a pin insulator 10 arranged in the socket housing 1. The socket housing extends left and right and its right end has an inner circumference for inserting and fitting with the outer circumferential surface of the left end extension of the plug housing. On the other hand, the inside of the socket housing 10 is hollow and is fixedly connected with a socket insulator through the transfer ring 8. The socket insulator is located at the left end of the socket housing, and the socket pins extending left and right are fixed in the socket insulator. Between the plug housing and the socket housing When performing pair insertion, the right end of the socket pin is inserted from left to right in the double-headed jack 7 and realizes the conductive connection between the plug and the socket. The relative rotation of the socket housing is provided with guide grooves extending left and right on the inner peripheral surface of the socket housing for plugging and fitting with the plug housing. Correspondingly, the outer circumference of the plug housing for plugging and fitting with the socket housing The surface is provided with a guide key slidingly matched with the guide groove, and the plug and the socket realize circumferential rotation prevention through the guide groove and the guide key.

The plug and the socket are locked through the connecting nut 3. The outer peripheral surface of the socket housing 1 is provided with a three-head transmission external thread section, and the inner peripheral surface of the connecting nut 3 is provided with a three-way adapter to the external thread section on the socket housing. The head drives the internal thread section, and the inner peripheral surface of the right end of the connecting nut 3 is also provided with an annular card groove, and a collar 4 is installed in the annular card groove. The right end face stops in the rightward direction, and the screwing of the connecting nut can realize the mating of the plug and the socket, and when it is inserted in place, the right end of the socket is pressed against the graphite sealing ring to realize the sealed connection of the plug and the socket. Due to the small elasticity of the graphite sealing ring, a greater axial force can be provided through the transmission thread to compress and deform the graphite sealing ring to ensure the tightness of the connection. In order to ensure that the plug and socket will not be damaged during use If axial movement occurs in the center and the conductive connection fails, it is necessary to prevent loosening of the connecting nut, that is, to ensure that the connecting nut does not move axially relative to the socket. There is a radially concave nut ring groove, and the outer peripheral surface of the socket housing is provided with a radially concave socket ring groove at the right end of the external thread section. When the socket and the plug are inserted in place, the nut on the connecting nut The ring groove and the opening of the socket ring groove on the socket housing are just opposite, and a locking wire 6 is installed in the socket ring groove, and the locking wire has a function of expanding radially outward and sliding in The locking position for the axial locking of the connecting nut by the nut ring groove and the radial contraction and sliding out of the socket ring groove when the socket housing and the connecting nut move axially relative to each other release the axial locking of the connecting nut In the unlocking position, the locking wire 6 has a split ring structure. In this embodiment, the locking wire 6 is formed by bending a round wire and has the elasticity of expanding radially. The ring groove of the nut is an arc-shaped groove. When the connecting nut is screwed into the plug-in position, the locking wire expands radially outward, the outer side of the locking wire slides into the nut ring groove, and the inner side is located in the socket ring groove, and the locking wire respectively connects with the nut through the outer peripheral surface. The ring groove and the groove wall of the socket ring groove stop and cooperate to realize the axial fixation of the connecting nut relative to the socket housing, avoiding the axial displacement of the connecting nut and the socket housing. During the disassembly process, manually apply force to rotate When connecting the nut so that it moves to the right relative to the socket housing, the groove wall of the nut ring groove presses the locking wire radially inward to overcome the elastic force of its radial expansion and makes it shrink radially, and the locking wire Shrink radially inward and slide out of the socket ring groove to release the axial locking of the connecting nut. At this time, the connecting nut can be pulled out of the socket to realize the separation of the socket and the plug.

Embodiment 2 of the electrical connector assembly of the present invention: the difference from Embodiment 1 is that the locking wire is a rectangular wire, the nut ring groove is a V-shaped groove with the opening facing inward, and the groove walls on both sides of the V-shaped groove are Cooperate with the adjacent two rectangular sides of the rectangular locking wire respectively. When the connecting nut is unscrewed from the socket, the V-shaped groove wall of the nut ring groove will provide the locking wire with a squeezing force perpendicular to the groove wall. The pressing force radially tilts toward the axis of the socket, which is beneficial to extrude the locking wire from the ring groove of the nut to contact the locking of the connecting nut.

Embodiment 3 of the electrical connector assembly of the present invention: the difference from Embodiment 1 is that the locking wire is a round wire, the nut ring groove is a rectangular groove, and the groove depth of the rectangular groove is smaller than that of the circular locking wire half of the diameter.

Embodiment 4 of the electrical connector assembly of the present invention: the difference from Embodiment 1 lies in that the connection nut and the socket housing are connected by triangular threads.

Embodiment 5 of the electrical connector assembly of the present invention: the difference from Embodiment 1 is that the plug and the socket are connected through opposite end faces, the sealing ring groove on the plug housing is provided on the left end face of the plug housing, and the socket housing The body is provided with an annular pressure-fitting surface that is press-fitted with the graphite sealing ring in the seal ring groove at a position corresponding to the seal ring groove of the plug housing.

The electrical connector assembly of the present invention adopts graphite sealing ring and ceramic insulator to improve the high temperature resistance and radiation resistance of the electrical connector assembly assembly, has strong adaptability, and has a long service life. Locking and unlocking of the connecting nut, one side of the nut ring groove on the connecting nut squeezes the locking wire so that the locking wire shrinks radially to realize unlocking, the insertion and removal process are very convenient, To install the locking wire, it is only necessary to respectively form ring grooves on the connecting nut and the socket housing, the structure is simple, and the manufacturing cost is low.

Claims (5)

1. electric coupler component, comprise the plug and socket that left and right extends, it is characterized in that, plug casing is provided with the closure gasket groove of opening towards socket, be provided with carbon seal ring in described closure gasket groove, described carbon seal ring has the face that is sealed and matched for being sealed and matched with Socket casing block.

2. electric coupler component according to claim 1, it is characterized in that, the Socket casing inserted terminal had for plug insert to jack, the periphery of described plug casing is provided with outer convex edge, described closure gasket groove is located on the left surface of outer convex edge, and the face that is sealed and matched of described carbon seal ring is sealed and matched with to the edge, right-hand member hole of jack.

3. electric coupler component according to claim 1 and 2, is characterized in that, described electric coupler component also comprises coupling nut, and described coupling nut is axially relative fixing with plug casing, and Socket casing is connected by motion thread with coupling nut.

4. electric coupler component according to claim 3, it is characterized in that, electric coupler component also comprises locks spacing locking mechanism for carrying out coupling nut, described locking mechanism comprises the nut annular groove being located at coupling nut left end, the socket annular groove being located at Socket casing periphery and the locking silk be located in socket annular groove, socket annular groove is relative at grafting position place opening with nut annular groove, described locking silk to have when Socket casing puts in place with coupling nut spinning radial spreading and contact with the cell wall of nut annular groove with socket annular groove with the locking position of coupling nut being carried out to axial locking respectively and extruded by the cell wall of nut annular groove when Socket casing and the axial relative movement of coupling nut and radial contraction skid off nut annular groove and remove solution lock-bit to coupling nut axis locking.

5. electric coupler component according to claim 4, is characterized in that, be respectively equipped with the insulator for fixing plug pin contact and/or jack contact in plug casing and Socket casing, described insulator is ceramic material.