RU2120165C1 - Plug-and-socket connector - Google Patents

Abstract

FIELD: electrical engineering. SUBSTANCE: connector has plug and socket placed in respective shrouds. The latter are embraced by union nut installed on external collar of socket shroud and provided with thread on inner surface, on plug-in side of socket. Union nut is made of material capable of shielding against external X-rays and has two parts; inner surface of first part which is on plug-in side of socket has stepped shape in which first step is threaded; second part which is beyond shroud collar on cable connection side is cap-shaped structure with through hole; outer surface of cap base is step-shaped and mates shape of portion of stepped inner surface of first part rigidly fixed to it; when joined together, both parts form annular slot on inner surface of nut above collar of socket shroud; maximum diameter over outer surface of first part equals diameter of outer cylindrical surface over second part of nut; total length of union nut depends on direction and its thickness, on intensity of radiation. EFFECT: improved shielding of connector contacts against external radiation. 1 dwg

Description

 The invention relates to electrical connectors and can be used in various fields of technology where protection of the contacts of the connectors from external x-ray radiation is required.

 Known cable connector or end sleeve (US Pat. US N 4168921, IPC H 01 R 13/54, publ. 25.09.79) containing a socket having an elongated part with an external thread. The pin has a part with an internal thread and contains an external surface device for manual jointing, which makes it possible to rotate the pin and screw it onto a part of the socket having a thread. A protective tube-like screen, open at one end, is located near the part of the pin and the threaded part of the socket. It closely covers these parts of the contact pair when accessing an external surface device from one end with manual articulation. The shield is firmly attached to the slot. The socket and the pin are articulated in the opposite direction along the longitudinal axis of the screen.

 The disadvantage of this device is the constructive separation of the protective screen and the fixing elements and, as a result, the large dimensions.

 Known plug connector (a. From the USSR N 489172, IPC H 01 R 13/62, publ. 25.10.75. Bull. N 39), consisting of a plug and socket, the cases of which are connected using installed, for example, on the plug union nut provided with a locking element. Each part of the connector contains an insulating block with contacts and conductors on the housing on which the union nut is installed, on its side facing the cable connection, a coaxial sleeve is installed with it. The housing, sleeve, block, contacts and conductors are interconnected into a single whole by an insulating mass.

 Known electrical connector (a. With. The USSR N 803060, IPC H 01 R 13/62, publ. 07.02.81. Bull. N 5), selected as a prototype. The connector contains sockets and plugs held in the articulated position by the union nut of the housing, one of which is fixed to the base, a ferrule and polarizing elements made in the form of grooves and protrusions located respectively on the inner surface of the ferrule and the outer surface of the union nut, the union nut is mounted on the outer flange the housing of the outlet and has a thread on the inner surface of the plug-in side of the outlet. The holder is mounted on the base rigidly, coaxially with the body, for example, forks.

 The disadvantage of these connectors is the inability to protect the contacts of the connector from x-ray radiation without additional structural elements.

 The invention is aimed at solving the technical problem of protecting the contacts of the outlet from external x-ray radiation.

 The technical task is solved as follows. An electrical connector is proposed comprising a socket and a plug located in respective housings, a union nut holding them in an articulated position, mounted on the outer flange of the socket body and having a thread on the inner surface of the plug-in side of the socket.

 The union nut is made of an external X-ray shielding material and consists of two parts, the inner surface of the first part located on the plug-in side of the socket has a stepped shape, the thread is made on the inner surface of its first stage, the second part is located behind the shoulder of the socket body on the connection side cable, has the shape of a cap with a through hole, the outer surface of the base of the cap is made in a step shape corresponding to the shape of the part of the step rigidly connected to it the inner surface of the first part, which, when connected, form an annular groove on the inner surface of the nut located above the shoulder of the socket housing, the largest diameter of the outer surface of the first part is equal to the diameter of the outer cylindrical surface of the second part of the nut, the total length of the union nut being selected depending on the direction, and the thickness - depending on the intensity of external radiation.

 The claimed electrical connector differs from the prototype in that the union nut is made of a material screening external x-ray radiation and consists of two parts, the inner surface of the first part located on the plug-in side of the outlet has a stepped shape, the thread is made on the inner surface of its first stage, the second part located behind the shoulder of the socket housing on the cable connection side, has the shape of a cap with a through hole, the outer surface of the base of the cap is made of a step of the form corresponding to the shape rigidly connected thereto stepped inner surface portion of the first part, which when combined form on the inner surface of the nut annular groove disposed above the shoulder socket housing. The largest diameter of the outer surface of the first part is equal to the diameter of the outer cylindrical surface of the second part of the nut, the total length of the union nut being selected depending on the direction, and the thickness depending on the intensity of the external radiation.

 In the connector made according to the invention, the union nut serves not only to hold the connector in the articulated position, but also protects the contacts of the outlet from external x-ray radiation.

 The invention is illustrated in the drawing. The drawing shows a General view of the connector in section.

 The electrical connector contains a socket 1 and a plug 2 located in the respective housings, the union nut 3 holds them in an articulated position and is installed on the outer flange 4 of the housing of the socket 1, has a thread on the inner surface of the plug-in side of the socket 1, consists of two parts. The inner surface of the first part 5, located on the plug-in side of the socket 1, has a stepped shape. The thread is made on the inner surface of its first stage, the second part 6 of the union nut 3, located behind the flange 4 of the housing of the socket 1 on the cable connection side, has the shape of a cap with a through hole. The outer surface of the base of the cap is made in a step shape corresponding to the shape of the part of the stepped inner surface of the first part 5, which, when connected, form an annular groove on the inner surface of the union nut 3 located above the shoulder 4 of the socket body 1. The largest diameter of the outer surface of the first part 5 equal to the diameter of the outer cylindrical surface of the second part 6. The total length of the union nut 3 is determined by the direction of the radiation flux.

 The union nut 3 is made of a material screening external x-ray radiation, for example steel. Parts 5 and 6 of the union nut 3 are connected by laser welding with the formation of an annular groove providing mutual mobility of the socket 1 and the union nut 3.

 The electrical connector, made according to the proposed solution, allows you to shield the contact field of the connector from external x-ray radiation without additional screens and caps.

Claims (1)

 An electrical connector comprising a socket and a plug located in respective housings, a union nut that holds them in an articulated position, mounted on the outer flange of the outlet housing and having a thread on the inner surface of the plug-in side of the outlet, characterized in that the union nut is made of an external x-ray shielding radiation of the material and consists of two parts, the inner surface of the first part located on the plug-in side of the outlet has a stepped shape, the thread is made on the inside the surface of its first stage, the second part, located behind the flange of the socket housing on the cable connection side, has the shape of a cap with a through hole, the outer surface of the base of the cap is made in a step shape corresponding to the shape of the part of the stepped inner surface of the first part that is rigidly connected to it, which when connected form an annular groove on the inner surface of the nut located above the shoulder of the socket body, the largest diameter of the outer surface of the first part is equal to the diameter of the outer cylinder ndricheskoy surface of the second nut portion, the overall length and thickness of the cap nut are chosen on the basis of predetermined direction and intensity of an external X-ray, respectively.