RU214102U1 - Quick release contact device - Google Patents

Abstract

The utility model relates to electrical engineering and electronics and can be used for switching electrical and electronic circuits that require the possibility of easy separation or connection of contacts during operation, ensuring reliable contact and holding the mating contact parts in the working position. The technical result consists in reducing the time for connecting and disconnecting the product from electrical circuits while ensuring reliable contact. The technical result is achieved due to the fact that the contact socket is made in the form of a twisted conical spring 1 made of an electrically conductive material, into which a contact pin 3 with a longitudinal groove is inserted from the larger side of the cone for tight articulation with the smallest coil of the socket. At the same time, to facilitate articulation, the pin can be screwed in, and unscrewed when dismembered; for the same purpose, the last (smaller) turn can be made with a straight shank, when the contact pressure is reduced against the direction of the coiling of the spring. 1 w.p. f-ly, 2 ill.

Description

Technical field

The utility model relates to electrical engineering and electronics and can be used for switching electrical and electronic circuits that require easy disconnection or connection of contacts during operation.

The widest scope of the utility model is in ammunition test fixtures, when it is required to quickly connect and disconnect the electrical circuits of test circuits. So, for example, when cocking fuses in a centrifuge due to centrifugal acceleration during climatic tests, the testing time after removal from the heat chambers is significantly limited, which requires reducing the time to connect and disconnect the product from electrical circuits while ensuring reliable contact.

State of the art

Many contact devices are known, containing a pin and a socket, made of an elastic electrically conductive material of such a shape that when the contacts are connected, an elastic deformation of this element occurs, providing the compression necessary for good contact. A description of such connections is given in the textbook "Connectors and switching devices" St. Petersburg: St. Petersburg State University ITMO, 2007, pp. 66-67. The closest prototype to the claimed device is the "Plug connection" according to patent RU 2266593 C1, in which the collets are additionally compressed by helical springs to create a reliable contact pressure.

However, all such devices require the creation of a socket that limits the maximum opening of the spring element, or additional details to fix it in a compressed state.

The purpose of this technical solution is to simplify the design of the contact device, ensuring reliable contact and retention of the articulated contact parts in the working position.

This goal is achieved by the fact that the contact socket is made in the form of a twisted conical spring made of an electrically conductive material, into which a contact pin with a longitudinal groove is inserted from the larger side of the cone for tight articulation with the smallest turn of the socket. At the same time, to facilitate articulation, the pin can be screwed in, and unscrewed when dismembered; for the same purpose, the last (smaller) turn can be made with a straight shank, when the contact pressure is reduced against the direction of the coiling of the spring.

Utility Model Disclosure

The utility model is illustrated by the description and drawings (Fig. 1, 2).

The device includes (Fig. 1): a socket in the form of a contact twisted conical spring 1, mounted on a stand 2, a contact pin 3 with a cut, fixed on the product 4.

In FIG. 2 shows the design of a spring with a shank. The method of attaching the spring to the stand depends on the design of the product on which the connector is installed.

Implementation of the utility model

When inserting pin 3 into spring 1 from the side of the larger diameter of the cone, it increases the diameter of the coil due to the spring properties of the wire and creates a reliable electrical contact. It is possible to screw the pin into the spring. In the case of using a contact device when testing products in a centrifuge, centrifugal acceleration additionally presses the pin against the spring.

A spring with a shank facilitates the articulation and disengagement of the device when the shank is pressed against the winding.

The proposed connector is particularly useful for testing devices with a limited (short) duration of action, such as testing fuses under climatic influences after removal from thermal chambers or cocking in a centrifuge with continuation of other influences for a short period of time, etc.

The technical result of the utility model is to provide quick connection and disconnection of the connector with high reliability of contact and simplicity of design.

Claims (2)

1. A quick-detachable contact device for electrical connection, containing a contact socket with spring elements and a contact pin, characterized in that the contact socket is made in the form of a twisted conical spring mounted on a stand, and the contact pin with a cut along the axis is inserted into the socket from the side of the larger diameter cone with possible rotation and is removed with reverse rotation. 2. A quick-detachable contact device according to claim 1, characterized in that, to facilitate removal, the last smaller coil of the spring is made with a straight shank, when pressed, the diameter of the spring coil increases and the contact pressure decreases.

Images