Connection terminal of electric device

Abstract

The invention provides a connection terminal of an electric device. The connection terminal of the electric device mainly comprises a conductor (1), a high-voltage shielding body (2), a low-voltage shielding body (3) and an insulating body (4). The insulating body (4) is a connection terminal body and is of a structure in the shape of an umbrella skirt. One end of the insulating body (4) covers and fixes the conductor (1) and an opened end of an internal cavity of the other end of the insulating body (4) covers and fixes the low-voltage shielding body (3). One end of the conductor (1) is exposed out of the insulating body (4) and the other end of the conductor (1) extends into the cavity of the insulating body (4). The high-voltage shielding body (2) is located at the bottom of the cavity of the insulating body (4) and covers a body of the conductor (1) located in the cavity of the insulating body (4). According to the connection terminal of the electric device, maintenance cost of an external power supply and the electric device which is connected with the external power supply line and a power supply line is saved, the problem of an interface of the electric device is solved and phenomena of air discharge, flashover and the like generated on the joint zone of the electric device and the external power supply line on the surface of the box body of the electrical box are eliminated.

Description

technical field [0001] The invention relates to the field of connection devices between electrical equipment and power supply lines, in particular to a connection terminal of electrical equipment for connecting electrical equipment such as pole-mounted switches and transformers to power supply lines. Background technique [0002] In the prior art, the connection between electrical equipment such as pole-mounted switches and external power supply lines is generally to use the connection conductor protruding from the inside of the electrical equipment box to directly connect to the external power supply line of the box. In order to solve the creepage distance of electrical equipment, For interface problems, epoxy resin material layers and rubber sleeves are usually poured outside the conductors protruding from the inside of the electrical equipment box. The shortcomings of this structure are reflected in the following three aspects: [0003] First, since the rubber sleeve and...

AI Technical Summary

Problems solved by technology

[0003] First, since the rubber sleeve and the epoxy resin material layer adopt a set structure, after long-term operation of the equipment, the rubber sleeve and the epoxy resin material layer will age and relax, resulting in insufficient interface pressure between the rubber sleeve and the epoxy resin layer. discharge phenomenon

[0004] Second, the outdoor parts such as rubber bushings and epoxy resin layers are more likely to be damaged or aged. Once the rubber bushing or epoxy resin layer is found to be invalid during the maintenance of external power supply lines or electrical equipment, the electrical equipment box needs to be disassembled , or even replace the entire electrical equipment, resulting in expensive replacement costs and long replacement cycles

[0005] Third, there is no grounding shield inside the existing electrical equipment products such as switches on the pole, and the ground potential is the surface of the electrical equipment box. Phenomena such as air discharge and flashover

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