RU183668U1 - Electrical connector - Google Patents

Abstract

The electrical connector refers to electrical engineering and can be used for electrical connections.

The electrical connector contains a plug (1) and a socket (2). In the cases (3) of the plug (1) and the socket (2), insulators (4) with contacts (5) are installed, and in the niche (6) formed by connecting the cases (3), there is a grounding contact group (7). The grounding contact group (7) is equipped with terminals (8) for grounding, connected by means of conductors (9) to the contacts of the grounding contact group (7) located outside the insulator (4) with contacts (5). Contacts (5) have power conductor connections (10). The cases (3) of the plug (1) and the socket (2) are made of dielectric material. The socket (2) has a cover (11). The housing (3) of the plug (1) has a stop (12) and a protrusion (13). On the protrusion (13) of the plug housing (3) (1), the plug ground contact (1) is located, and in the niche (6) of the socket (2), the ground terminal of the plug (2) is placed, which together form the ground contact group (7). When connecting the plug (1) and the socket (2), the protrusion (13) of the body (3) of the plug (1) separates the grounding contact group (7) from the insulators (4) with the contacts (5), forming a closed niche space (6) . The contact group (7) is connected to the terminals (8) through conductors (9) that pass outside the insulators (4). The wires (14) connected to the terminals (8) form a grounding protective line between the grounding wires of the source and the consumer of electricity. The cover (11) has a spring (15) and a hook (17), made with the possibility of interaction with the locking tooth (16) located on the fork (1) for fixing the electrical connector in the connected state.

The technical results of the claimed solution are to increase electrical safety and the implementation of the technical problem posed, 1 zp f-ly, 1 ill.

Description

The proposed product relates to electrical engineering and can be used for electrical connections.

Known electrical connectors, consisting of a plug and socket, while in the metal cases of the plug and socket insulators are installed with cylindrical contact pairs (pin-sleeve), in which the contacts are located in the same plane. [Producer of LLC Soyuztekhnologiya Ulyanovsk, http://www.soyuzt.ru/] [1], [LLC Plant of Electrical Connector Nizhny Novgorod, http://www.elconnect.ru/] [2]

The disadvantages of these analogues is that the electrical connectors do not provide a constant connection of the grounding line of the socket and plugs (grounding line from the voltage source to the consumer). In addition, the housings of these connectors are made of conductive material (aluminum alloy), so when you touch the wall with a wire that has severed for some reason inside the housing, the entire external surface of the housing is exposed to voltage dangerous to humans. In cases with grounding (protection) contacts located directly in the same insulator as other contact pairs that are energized during overload or during a short circuit or other critical situation, in which the insulator with phase (working) contacts melts, or burns out, or collapses , the grounding line may be broken, or voltage may enter the grounding (protection) line, through which the consumer’s conductive housings are grounded, as a result of which a person can be exposed to dangerous voltage.

The closest analogue in technical essence is an electrical connector with a plug with a push lock, containing a housing, an insulator, contacts installed inside the housing. A niche is made in the housing, in which there is a push lock, consisting of keys and hooks mounted on the axis. The pressure clamp is equipped with a return spring, in the niche for the location of the pressure clamp is a grounding contact group. [RU 164344, H01R13 / 00, publ. 08/27/2016] [3]

In the indicated analogue, “dead end” terminals located in the niche are provided for grounding the housings, but for safety in some emergency situations this may not be enough, since the absence of a permanently connected ground (protective) line from the outlet to the plug does not guarantee permanent grounding of the consumer connected through such electrical connector.

The technical problem of the claimed device is the elimination of the disadvantages of analogues, the creation of an electrical connector that provides a constant connection of the consumer ground at each connection to the power source and is characterized by simplicity and reliability.

The technical results of the claimed solution are to increase electrical safety and the implementation of the technical problem posed.

The indicated results are achieved in that the electrical connector containing the plug and the socket, while insulators with contacts are installed in the plug and socket cases, and the grounding contact group is located in the niche formed when the cases are connected, according to the claimed utility model, the grounding contact group is equipped with connection terminals grounding, connected by means of conductors to the contacts of the grounding contact group, located outside the insulator with the contacts. The plug and socket housings can be made of dielectric material.

The use of a grounding contact group remote from the insulator and located in a niche for the grounding line in the electrical socket ensures a constant connection of the consumer grounding at each connection to the power source, which increases the safety of a person working with a consumer connected through electrical connectors, including in an emergency situation critical for electrical connectors. The use in the electrical connector of a conductor passing outside the insulators of a plug and socket with contacts (through which the operating voltage is connected) between the terminals for connecting the ground and the contacts of the grounding contact group increases the safety of a person working with a consumer of electricity, since they exclude the transfer of operating voltage to the grounding (protective) line for the destruction of the insulators plugs and sockets. The use of housings made of dielectric materials reduces the likelihood of contact with conductive elements and improves human safety when working with connectors of these types.

The electrical connector is illustrated in the drawing, where the figure shows the connection of the plug with the socket in section.

The electrical connector contains a plug 1 (figure) and a socket 2. In the cases 3 of the plug 1 and the socket 2, insulators 4 with contacts 5 are installed, and a grounding contact group 7 is located in the niche 6 formed by connecting the housings 3. The grounding contact group 7 is equipped with terminals 8 for grounding, connected by means of conductors 9 to the contacts of the grounding contact group 7, located outside the insulator 4 with contacts 5. Contacts 5 are connected to power conductors 10. Housings 3 plugs 1 and sockets 2 are made of dielectric material . The socket 2 has a cover 11. The housing 3 of the plug 1 has a stop 12 and the protrusion 13. On the protrusion 13 of the housing 3 of the plug 1 there is a ground contact (not shown in the figure) of the plug 1, and a ground contact (not shown in the figure) is located in the recess 6 of the socket 2 ) sockets 2, which together form a grounding contact group 7. When connecting the plug 1 and socket 2, the protrusion 13 of the housing 3 of the plug 1 separates the grounding contact group 7 from the insulators 4 with contacts 5, forming a closed space of the niche 6. Contact group 7 is connected to terminals 8 through conductors 9 which pass they are worn outside the insulators 4. The wires 14 connected to the terminals 8 form an earth protective line between the earth wires of the source and the consumer of electricity. The cover 11 has a spring 15 and a hook 17, made with the possibility of interaction with the locking tooth 16 located on the plug 1 for fixing the electrical connector in a connected state.

The electrical connector works as follows. To connect electricity, the plug 1 (which is always connected to the consumer) is connected to the socket 2 (which is always connected to the source) and their bodies 3 are combined so that the contours of the ends of the cases coincide. The cover 11 of the socket 2 is deflected, and the plug 1 is pushed onto the socket 2 until it stops 12 of the housing 3 of the plug 1, then the bodies 3 of the plug 1 and the socket 2 are connected. If the configurations of the ends of the housings 3 match, the protrusion 13 from the side of the plug 1 will be opposite the niche 6 side of the socket, and it will be possible to insert the plug 1 into the socket 2. If the contours of the cases 3 are not aligned correctly, then the protrusion 13 of the plug 1 will not coincide with the niche 6 of the socket, and connection will be impossible. With the continuation of the introduction of the plug 1 into the socket 2, the contacts 5 are connected, which are located in the insulators 4. The plug 1 is inserted into the socket 2 until it stops 12 located on the housing 3 of the plug 1 into the end edge of the housing 3 of the socket 2. After the plug 1 is fully inserted the socket 2, under the action of a twisted spring 15, the cover 11, tending to return to its original position, falls over the edge of the locking tooth 16, and the hook 17 located on the cover 11 and the locking tooth 16 located on the housing 3 of the plug 1 are locked.

When disconnecting (disconnecting the plug 1 from the socket 2) of the electrical connector, the hook 17 located on the cover 11 must be disengaged from the locking tooth 16 by lifting the cover 11, then the housing 3 of the plug 1 should be removed from the housing 3 of the socket 2, while the insulator 4 with contacts 5 plugs 1 will come out of the connection with the insulator 4 contacts 5 of socket 2. Next will be the disconnection of the grounding contact group 7, equipped with terminals 8. When the final disconnection of the cases 3 of the electrical connector, the cover 11 of the socket 2 returns to its original position, blocking the random stupid to kontatam 5.

The inventive electrical connector solves the following tasks:

provide constant grounding of the consumer at each connection to the power source through the use of an additional contact group for the grounding line in such plugs and sockets;

increases the safety of a person working with a consumer of electricity connected through an electrical connector in an emergency situation critical for electrical connectors due to the use of a conductor passing outside the common insulator between the terminals and the grounding contact group, through which the grounding (protective) line is connected;

can improve human safety when working with connectors of these types, through the use of dielectric housings, which reduce the likelihood of contact with conductive elements.

In an electrical connector with a separate line of grounding protection in case of emergency situations with damage to the working contacts 5 (overheating, thermal sintering, spalling) or destruction of the insulator 4 (melting, burnout), the grounding line remains in working condition.

Claims (2)

1. An electrical connector containing a plug and a socket, while insulators with contacts are installed in the plug and socket housings, and a grounding contact group is located in a niche formed by connecting the housings, characterized in that the grounding contact group is equipped with grounding terminals connected by means of conductors with the contacts of the grounding contact group located outside the insulator with the contacts. 2. The electrical connector according to claim 1, characterized in that the plug and socket are made of dielectric material.

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