Single-direction plug and socket connection assembly

Abstract

The invention relates to the field of socket connectors and provides a single-direction plug and socket connection assembly which comprises a plug assembly and a socket assembly. The plug assembly comprises a single-direction plug housing, and the top face of the plug shell is coaxially provided with a cylindrical plug body which is coaxially provided with two annular grooves which are internally equipped with concave annular contacts, and two male end wiring terminals are connected to corresponding annular connectors through conductive wires. The socket assembly comprises a socket housing which is coaxially provided with a socket core which is provided with a center jack which is matched with the plug body. The outer wall of the socket core is provided with two annular grooves, and multiple radial countersink through holes are uniformly distributed in each of the annular grooves. Each of the countersink through holes communicates with the center jack and is internally equipped with an arc contact and a contact pressure spring. The head of the arc contact is in the shape of an arc, and the tail part of the contact expands and is limited by the step surface of a countersink port aperture. The contact pressure spring is pressed between the contact and the inner wall of the socket housing. The bottom of the socket housing is provided with two female end wiring terminals, and each of the female end wiring terminals is connected to a contact in an annular contact through a conductive wire.

Description

technical field [0001] The invention relates to the field of connectors, in particular to a one-way plug socket assembly. Background technique [0002] Since Nikola Tesla invented alternating current, it has been widely used in various fields of people, and its plug and socket structure has been followed until now. There are single-phase two-wire, single-phase three-wire, three-phase four-wire, and three-phase five-wire systems. There are two types of plugs: rectangular flat plugs and cylindrical plugs. [0003] Plugs and sockets in various countries now adopt this structural form, but the relevant positions of the plugs and sockets are arranged differently. The socket contacts that are contacted by flat or cylindrical plugs generally use U-shaped elastic copper sheets or semi-arc elastic copper sheets as conductive contacts. Components, the contact elements of these two structural forms can only be contacted by point, multi-point, line, and multi-line. The contact area is ...

AI Technical Summary

Problems solved by technology

[0003] Plugs and sockets in various countries now adopt this structural form, but the relevant positions of the plugs and sockets are arranged differently. The socket contacts that are contacted by flat or cylindrical plugs generally use U-shaped elastic copper sheets or semi-arc elastic copper sheets as conductive contacts. Components, the contact elements of these two structural forms can only be contacted by point, multi-point, line, and multi-line. The contact area is small, the overload current is small, and it is easy to generate arcs. The tightening force drops and the plug is easy to loosen, resulting in an increase in resistance or an open circuit, resulting in abnormal operation of electrical equipment

In the structure of the existing contacts, many schemes cannot make the contact area of ​​the contact larger than the diameter of the wire

In addition, there is a defect that the contact piece is easy to loosen when the pressing force is too small, and the plug is difficult to plug and unplug when the pressing force is too large

The existing sockets in various countries have two-hole single-phase two-wire, three-hole single-phase three-wire, four-hole three-phase four-wire, and five-hole three-phase five-wire systems. Due to different specifications, they cannot be interchanged universally. The voltage is between 110V and 220V. Separate and cannot be universally interchanged. A special conversion plug is required. When inserting, it needs to be aligned with the position of the hole, which makes it inconvenient to insert, and it is not possible to use the same socket for single-phase and three-phase.

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