Voltage transformer and spring and insert connection structure thereof

Abstract

The invention relates to the field of voltage transformers, in particular to a voltage transformer and a spring and insert connection structure thereof. A spring in the existing voltage transformer with a fuse is not fixed and the contact area of the spring and insert is limited, so that the phenomenon of poor contact between the spring and insert is prone to occur, and the quality of voltage transformer products is affected. The invention provides the spring and insert connection structure for the voltage transformer. The spring and insert connection structure comprises a spring, a screw and an insert. On the spring, one end cooperating with the insert is an insert cooperating end; the insert is provided with an insert groove adapted to the insert cooperating end of the spring; the groove bottom of the insert groove is provided with a screw hole; the screw is assembled in the screw hole, and the insert cooperating end is pressed in the insert groove through the screw. The invention also provides the voltage transformer using the spring and insert connection structure. The structure makes the spring fixed and firm, which increases the conductive contact area, avoids the bad contact phenomenon, and improves the quality of the voltage transformer products.

Description

technical field [0001] The invention relates to the field of voltage transformers, in particular to a voltage transformer and its spring and insert connection structure. Background technique [0002] As a key component in power transmission and distribution systems, voltage transformers cannot be ignored for their safety and reliability. Voltage transformers with fuses generally include coils, iron cores, fuses, springs, inserts, insulating materials, etc. The connection structure of springs and inserts in existing voltage transformers is as follows: figure 1 As shown, in the voltage transformer body 4 , the spring 1 is directly placed on the top plane of the insert 3 , and the spring 1 and the insert 3 are not fixed, but the fuse 5 is used to squeeze the spring 1 . Since the spring 1 is not fixed firmly in this way, the area of ​​the contact surface between the spring 1 and the insert 3 is limited. In the actual application process, it is easy to have poor contact between ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a connection structure between a spring and an insert for a voltage transformer to solve the problem that the current voltage transformer is prone to poor contact between the spring and the insert due to the unfixed connection between the spring and the insert and the limited contact area. In addition, The object of the present invention is also to provide a voltage transformer using the above-mentioned spring and insert connection structure

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