RU2242069C2 - Plug connector - Google Patents

Abstract

FIELD: electrical engineering; connectors designed for manual connection and disconnection of electric circuits.

SUBSTANCE: plug connector has equipment-end plug and socket. Cable-end parts of connector may be provided with straight or angle shell with lock or shells designed for lock mounting. Lock functions to hold union nut in coupled position and to prevent spontaneous loosening of connector mating parts. Equipment-end plugs are available of sealed and unsealed design alternates. Cable- and equipment-end plugs and sockets are available of unsealed design alternate. Equipment-end plugs (sockets) are coupled with mating cable-end parts of same design alternate only. Equipment-end plug has shroud accommodating plug with reinforced pins. Rubber gasket is fitted on pins on contact part end. Angle socket and straight plug (socket) have shroud common with lock that accommodates insulator in the form of insulating boards with movable (floating) jacks, hell and cover screwed together. Shell cover mounts lock that functions to hold union nuts in turned-in position.

EFFECT: enhanced reliability of protection against unwanted separation of connector mating parts.

3 cl, 4 dwg

Description

The invention relates to electrical engineering, and more specifically to connectors designed for mechanical connection and manual disconnection of electrical circuits (wires, cables, modules, blocks, etc.) in various types of equipment.

The main details (nodes) of electrical connectors are contacts - parts, insulators, housing parts and clamping elements.

Connectors made taking into account additional requirements (tightness, water tightness, dust protection, etc.) are equipped with additional protective or sealing elements.

Known connectors containing a special device for sealing in the form of a partitioned sealing ring, as in the invention, “Device for sealing the connector” (Japanese application No. 63-64861, H 01 R 13/52, abstract magazine “Inventions of the world” No. 20, issue 125 , 1989), or connectors containing a housing of square sections. The cores attached to the rear parts form a shielded cable, the rear part receiving a cable clamp, and an insulated housing is placed in the front part of the part so that the tubular shielded part completely covers the pin contacts, as in the invention of the “Multi-pin connector” (US patent No. 4810210, H 01 R 13/658, Russian Federation “Inventions of the World” No. 24, issue 125, 1989), or connectors in which the fixing device comprises a protruding sleeve to accommodate the part. An external protrusion of the part enters the groove of the sleeve so that a group of connectors protruding from the rear surface of each part corresponds to the contacts on its front surface, as in the invention “Subsea electrical connector with installation sleeve with a guiding device” (US patent 4801277, H 01 R 13 / 64, RZ “Inventions of the World” No. 21, issue 125, 1989).

These connectors, despite the original design in comparison with the claimed, do not have high reliability and have a complex structure.

Closest to the proposed invention is a plug connector with an elastic connecting strip (application EPO No. 0 161 835 H 01 R 13/627, RZ “Inventions of the World” No. 12, issue 120, 1986), which contains a connector (plug and socket ) and a block (insulator) made of molded plastic, with pin contacts located in it. In the block there is a fixing device (latch), which prevents the connectors from being disconnected during mechanical loads, and which is made in the form of an elastic strip provided with slots. The block has a section in the cross section of which holes are made into which the contacts enter. The thickened portion of each contact is fixed between the solid center portion and the plastic liner, which is held in place by the clamping nut.

The disadvantages of the prototype include the fact that the latch does not provide unauthorized dismemberment of the connector during operation. The guiding protrusions and the response grooves for direction and orientation do not have options, which allows the plug of this type of connector to be connected to any outlet.

The basis of the invention is the task of improving the connector, in which, due to a change in design, only authorized dismemberment of the connector is ensured as a result of the use of a locking device for fixing the union nut. The locking device is installed by the consumer.

The problem is achieved in a device having a plug and a socket forming a connector, an insulator with contacts located in it, a latch that prevents the connector from disengaging under the influence of mechanical factors, in which, according to the invention, the latch is mounted on the cover of the casing and contains a protrusion that interacts with the groove a cap nut with a tooth, a lever and a spring holding the nut from free rotation relative to the connector body, which is equipped with an insulator in the form of insulating boards and a nut is fixed oh, with movable (“floating”) contacts with a rubber gasket mounted on their shanks, and a large number of longitudinal grooves with a variable arrangement of mating protrusions are made with the possibility of multi-variant joint of the connector, in which one part of the connector can only be mated with a mating part with a similar version of the guides elements. A plug is installed in the cable case of the connector, and a socket in the block case. In the proposed plug connector, plugs and sockets are made both instrument and cable, and the cable parts of the connector can be either with a straight or with an angular casing, with a fixed lock or with casings designed to install the lock. The latch locks the union nut in the articulated position and protects the connector from self-loosening.

Instrument plugs are manufactured in sealed and non-sealed versions. Plugs and sockets for cable and instrument are made in an unpressurized version. Instrument plugs (sockets) mate with only one option cable sockets (plugs).

The instrument plug (Fig. 1) consists of a housing 1, in which a plug 2 with reinforced pins 3 is located. The plug 2 is mounted in the housing with a nut 4. A rubber gasket is put on the pins on the side of the contact part 5. To protect the contact part from damage and contamination on the screw is screwed on the cover 6.

An angled socket with a retainer (Fig. 2) consists of a housing 7 in which an insulator is located in the form of two insulating boards 8 and 9 with movable (“floating”) sockets 10. The boards 8 and 9 are mounted in the housing with a nut 11. The angled socket consists of the casing 12 and the cover of the casing 13 connected by screws 14. The joint on the casing is sealed with a rubber gasket 15. To seal the casing, rubber gaskets 16 and 17 are supplied. In order to protect the “floating” nests from flux, a rubber gasket 18 is put on the shanks of the nests, and to protect the contact part from damage and dirt on the socket wraps cover 19.

The latch 20 (figure 2) is mounted on the cover of the casing 13 and is designed to lock the union nut 21 in the articulated position of the connector. Locking (fixing) of the union nut 21 is carried out as follows: by pressing the button of the lock 22, move the lock to the side of the union nut, while the tooth of the lock 23 enters the groove 24 of the nut and releases the button 22, which is fixed internally using the lever 25 and the spring 26. To release the lock, press the button, slide the lock towards you (from the union nut to the stop) and release the button, while the lock using the lever 25 and spring 26 will fix a new position in which the tooth of the lock 23 will not interfere with the union nut to rotate freely relative to the connector body.

The plug connector in figure 3 according to the principle of operation and functional purpose is similar to the connector in figure 2 (instead of the socket, a pin is installed - see figure 1).

The plug connector in figure 4 according to the principle of operation and functionality is similar to the connector in figure 3 - with the exception of the design of the casing (in the direct version).

The proposed design of the plug connector allows you to use the connector in modern radio equipment, preventing the failure of expensive devices and increasing their reliability.

Claims (5)

1. A plug connector comprising a plug with reinforced pins and a socket with an insulator in the form of two insulating boards with movable sockets, forming two counterparts of the connector, fixed with nuts in the cable and block housings, a union nut, a cover with a cover and a latch that prevents disengagement the connector connector under the influence of mechanical factors, characterized in that rubber pads are put on the plug pins on the contact side of the plug and on the shanks of the movable socket of the outlet, the union nut has a groove, and the fixation op is mounted on the housing cover and comprises a button cooperating with a lever and a spring, and providing by clicking on it the opportunity to lock the coupling nut relative displacement, and a tooth belongs in the groove union nut and retaining it against free rotation. 2. The connector according to claim 1, characterized in that the plug is installed in the block case, and the socket in the cable case. 3. The connector according to claim 1, characterized in that it is provided with guide elements in the form of longitudinal grooves and reciprocal protrusions with a variable arrangement, providing the possibility of multivariate jointing of the connector, in which one part of the connector can be mated with the counterpart only with a similar version of the guide elements. 4. The connector according to claim 1, characterized in that it takes place under the locking device. 5. The connector according to claim 1, characterized in that it is further provided with a locking device.

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