RU2828096C1 - Socket for installation of electromechanical relays and modules - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to the field of electrical engineering, in particular to designs of plug-in sockets for installation in them of electromechanical relays and additional modules, which extend the functionality of the product in devices of cabinet automation of power engineering. Technical result is achieved in the socket for installation of electromechanical relays and modules by making the module connection unit from a movable bracket and a fixed bracket having a spherical projection, the movable bracket on one side contacts the fixed bracket, and on the other – is made with possibility of connection to outputs of relay winding, at that brackets are arranged with possibility of sliding connection of outputs-lamellae of module providing parallel-serial connection of module with relay coil.

EFFECT: higher manufacturability and level of protection against contact with live parts.

1 cl, 2 dwg

Description

The technical solution relates to the field of electrical engineering, in particular to the design of plug-in sockets for installing electromechanical relays and additional modules that expand the functionality of the product in power engineering cabinet automation devices.

During operation, control signals supplied to the relay input may have interference or may not meet the relay requirements, and on the other hand, transient processes at the moment of switching the electromechanical relay may also have a reverse effect on the electrical circuit and create interference, very often it is necessary to include additional protection elements in the control circuit, such as resistors, varistors, capacitors, RC circuits or other types of protective circuits connected in parallel with the relay winding. In certain cases, it becomes necessary to expand the functionality of the relay by connecting an additional module in series with the relay winding, which, depending on the set settings and the shape of the input signal, issues a control signal to the relay.

The solution СН555607, published 31.10.1974, is known, containing a housing and a cover, openings for connecting relay contacts, and a plurality of contact elements. The disadvantage of the known solution is the ability to connect the module only with an additional device, which requires additional space and must be electrically connected by direct installation in the wiring of the plug-in socket.

The solution EP 0394804, published on 27.12.1995, containing a housing and a cover, a unit for connecting relay contacts, and a plurality of contact elements, a unit for connecting modules, was chosen as a prototype. The disadvantage of this solution is the lack of parallel-series connection, insufficient level of protection against touching live parts during module installation.

The purpose of the claimed technical solution is to create a socket with an improved design for connecting a module, providing parallel-serial connection in a simple, compact and labor-saving way using printed tracks on the printed circuit board of the module and a minimum number of parts in the socket itself, due to which manufacturability is achieved, provides an increased level of protection against contact with live parts under voltage during installation of the module, and increased reliability during operation, which together forms a technical result - increased manufacturability and operational adaptability of the relay to the emergence of new and changes in old requirements.

The technical result is achieved in that in a socket for installing electromechanical relays and modules, consisting of a housing, a cover, a unit for connecting relay contacts, a unit for connecting a module and a plurality of contact elements, the module connection unit is made of a movable bracket made of an elastic conductive material and a fixed bracket made of a hard conductive material, having a spherical protrusion, the movable bracket on one side contacts the fixed bracket, and on the other side is made with the possibility of connecting to the terminals of the relay winding, wherein the brackets are located with the possibility of sliding connection of the module lamella terminals, and the module connection unit is also fixed with a cover, securing the brackets in the corresponding grooves on the housing, eliminating the possibility of touching the current-carrying parts during installation and removal of the module.

The essence of the claimed technical solution is explained by graphic materials, which depict:

Fig. 1 - general view of the socket without an additional module with a local section of the module connection unit and the relay connection unit;

Fig. 2 - general view of a socket with an electromechanical relay and a module, with a local section of the module connection unit.

The socket (Fig. 1 and 2) contains a housing 1, a cover 2, a connection unit for terminals 3 of relay 4 and a connection unit 5 of module 6.

The socket contains mounting holes in the housing 1 made with a certain pitch of the terminals for installing relay 4 and module 6.

The connection unit of module 5 structurally consists of a movable bracket 7 and a fixed bracket 8 installed in housing 1. Fixed bracket 8 has a spherical protrusion on one side and is made of a solid conductive material. Movable bracket 7 is made of an elastic conductive material with the possibility of connecting one side to the terminals of relay winding 4, and the other contacts fixed bracket 8, thereby providing electrical communication for supplying power to the relay.

The module connection unit 5 is secured by cover 2, ensuring reliable fixation of brackets 7 and 8 in the corresponding grooves on housing 1 of the socket, thereby ensuring reliable operability of the module connection unit, and increased electrical safety - by placing the module connection unit 5 in housing 1, eliminating the possibility of touching live parts during installation and removal of module 6.

During the installation (Fig. 2) of module 6, consisting of casing 10 and printed circuit board 9 forming lamella, movable bracket 3 made of elastic material due to its special shape and chamfers on the printed circuit board, moves away from fixed bracket 2. Conductive printed tracks (lamellas) formed for sliding connection, on one side touch the sphere of the fixed bracket, and on the other side touch the movable bracket, thereby providing electrical connection of the electromechanical relay with the module. Parallel-serial connection is provided by means of the built-in electrical circuit of the module and the module connection unit 5.

When installed on a socket, the relay without a module provides a direct electrical connection to an external control signal (Fig. 1).

The claimed technical solution allows, due to modularity based on a socket and an electromechanical relay, to develop and create new devices for various purposes. For example, a voltage control relay that will monitor the network voltage and operate at a minimum or maximum voltage determined by the settings of the modules.

Claims (1)

A socket for installing electromechanical relays and modules, consisting of a housing, a cover, a unit for connecting relay contacts, a unit for connecting a module and a plurality of contact elements, characterized in that the unit for connecting a module consists of an elastic movable bracket made with the possibility of connecting one end to the relay terminals and a fixed bracket having a spherical protrusion, wherein the brackets are made of a conductive material and have an elastic electrical contact with each other, thereby ensuring the supply of power to the relay and the possibility of sliding parallel-series connection of the module lamella terminals to the relay winding terminals, the unit for connecting the module is also fixed with a cover, securing the brackets in the corresponding grooves on the housing, eliminating the possibility of touching the current-carrying parts during installation and removal of the module.

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