RU2738351C1 - Electric connector - Google Patents

Abstract

FIELD: electrical equipment.

SUBSTANCE: invention relates to electrical engineering and can be used in devices for detachable connection of electric circuits, in particular for installation of accumulator battery in aircraft compartment. Electric connector comprises two housings, male contact and female contact with spring-loaded element, spring-loaded element is part of female contact, having the form of cylindrical spring and contact cylindrical surface with inner diameter smaller than diameter of male contact, which allows to have increased contact surface with male contact. Increase in the pressure force at the point of contact is ensured by fitting the spring part of the female contact. Presence of contact conical surface in spring part promotes reduction of force required for connector joint, as well as reduced wear of contact surfaces, which contributes to reduction of transient electrical resistance of connection and increases its reliability during operation.

EFFECT: technical result achieved in the proposed electric connector consists in improvement of: 1) reliability of electric connector operation due to increase of contact surface at connection of male and female contacts; 2) contact pressure forces.

1 cl, 2 dwg

Description

The invention relates to the electrical industry and can be used in devices for detachable connection of electrical circuits, in particular for installing a battery in an aircraft compartment. A sealed electrical connector is known (patent of the Russian Federation No. 2484566, IPC H01R 13/52, publ. 2013), containing a cable lug, a socket, a union nut and two bushings with tapered surfaces for fixing the armor of a geophysical cable, while the cable lug is made of a composite connected by means of a thread of the upper and lower bodies, and the union nut and two bushings with tapered surfaces are attached to the upper part of the upper body, in which a bore is made for installing a thrust washer and sealing elements, a chamfer is made on the outer conical sleeve, and the thrust washer is made of metal with less hardness than the wire of the cable armor, in the lower case there is a pin contact in the insulator, on which a bushing is put on, which protects against breakdown and serves as a stop that perceives the force of docking with the plug, made removable, in the form of a case into which the socket contact is pressed on one side , and on the other hand, the shank forming the germv od, the coupling of the sleeve, the insulator and the sealed lead-in is made stepwise, the socket with a cable lug is mechanically connected using a union nut.

The common features of the proposed electrical connector and analogue are as follows:

- body;

- pin contact;

- cylindrical female contact.

The disadvantage of the known design is the limitation of the contact area when the pin and socket contacts are articulated and the limitation of the contact pressure force, which reduces the reliability of the connector by increasing the transient electrical resistance of the contacts.

The closest to the proposed electrical connector, taken as a prototype, is an electrical connector (patent of the Russian Federation No. 2260886, IPC H01R 13/18, publ. 2005), containing a plug with pins and a socket with sockets, and the tip of each pin is made as a part a spherical surface, a chamfer is made at the inlet of each socket, the mechanical connection of each pin to the socket is made due to a spring-loaded device, which is made in the form of a spring installed in a recess on the outer cylindrical surface of the socket, on which the bushing is located, the recess in the socket is made with two walls and a bottom having a through slot, each wall is made with a plane forming it, perpendicular to the longitudinal axis of the socket, the distance between the walls is made greater than half the length of the part of the socket intended for connection with the pin, the bottom of the groove from each wall to the through slot is made to form a part of the cylindrical surface c the longitudinal axis of which is located perpendicular to the longitudinal axis of the nest behind the outer cylindrical nest on one side with a recess relative to the longitudinal axis of the nest, the height of the recess is made close to the thickness of the spring, the spring is made in the form of a curved plate, the longitudinal dimension of which is greater than the longitudinal size of the through slot in the bottom of the recess , the spring is installed at the bottom of the recess with its longitudinal axis along the longitudinal axis of the socket. The spring is made with the direction of its longitudinal axis along the rolling axis of the spring sheet blank, the profile of the spring is made corresponding to the profile of the cylindrical surface of the recess, the chamfer on the socket is made as part of a spherical surface, the radius of which is greater than the radius of the spherical surface of the tip of the pin; sockets and pins are plated with gold or its alloys, springs are plated with gold-antimony alloy.

The features common between the proposed electrical connector and the prototype are as follows:

- two buildings;

- pin contact;

- socket contact with a spring.

The disadvantage of this electrical connector is the insufficient (one-sided) contact surface when the male and female contacts are articulated, which reduces the reliability of the connector by increasing the transient electrical resistance of the contacts.

The technical result achieved in the proposed electrical connector is to increase the reliability of the electrical connector by increasing the contact surface when the male and female contacts are articulated.

The above technical result is achieved in that, in an electrical connector containing two bodies, a pin contact and a socket contact with a spring, the socket contact spring is a part of the socket contact that has a cylindrical or conical contact surface.

In addition, the spring having a contact cylindrical surface is made with an inner diameter smaller than the diameter of the pin contact.

Distinctive features that determine the compliance of the proposed electrical connector with the criterion of "novelty" are as follows:

- the spring of the socket contact is a part of the socket contact having a contact cylindrical or conical surface;

- the spring having a cylindrical contact surface is made with an inner diameter smaller than the diameter of the pin contact.

To substantiate the compliance of the proposed design of the electrical connector with the criterion of "inventive step", an analysis of the known solutions was carried out according to literature sources and the register of inventions. No distinctive features of the proposed solution, which together with the known features, give the above technical result in the literature and the register of inventions, therefore, according to the authors, the proposed design of the power electrical connector meets the criterion "inventive step".

The design of the proposed electrical connector in FIG. 1 and FIG. 2.

The proposed electrical connector consists of a housing 1, a pin contact 2, a housing 3, a socket contact 4, a part of a socket contact made in the form of a spring 5 having a cylindrical or conical contact surface.

An example of a specific implementation of the proposed electrical connector.

The housing 1 and the housing 3 contain a pin contact 2 and a spring 5 of a socket contact 4 - the main parts of an electrical connector used for switching products. After the pin 2 and the socket contact 4 are articulated, the spring 5 of the socket contact 4, having a cylindrical surface, contributes to a more complete fit, increasing the contact area, which leads to a decrease in the transition electrical resistance of the connection and increases the reliability of the electrical connector during operation. The use of the spring 5 of the socket contact 4 with the conical contact surface leads to a decrease in the force required for the joint of the connector, as well as to a decrease in the wear of the contact surfaces, which also helps to reduce the transient electrical resistance of the connection and increases its reliability during operation.

Claims (2)

1. An electrical connector comprising two bodies, a male contact and a female contact with a spring, characterized in that the spring of the female contact is a part of the female contact that has a cylindrical or conical contact surface. 2. An electrical connector according to claim 1, characterized in that the spring having a contact cylindrical surface is made with an inner diameter smaller than the diameter of the pin contact.

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