Dry-type transformer with coil pressing structure

Abstract

The invention discloses a dry-type transformer with a coil pressing structure, which comprises a bracket, at least two iron cores are distributed between the brackets, each iron core is communicated up and down, the periphery of each iron core is sleeved with a coil, connecting rings are fixed at the upper end and the lower end of each coil, and the connecting rings are rotatably connected with the iron cores through insulating sleeves; a plurality of pressing assemblies are distributed on the periphery of each coil, the pressing assemblies are connected into the support, and the pressing assemblies can adjust the force of pressing the coils through adjusting rods. Compared with the prior art, energy conservation and performance are both considered, the open type coil is high in air flowing speed and heat dissipation efficiency, a wire wound on the coil is pressed, the pressing force can be adjusted in real time, the wire is prevented from loosening, accidents are avoided, the cleaning scraper is attached to the coil, the surface of the coil is cleaned by rotating the coil, and the cleaning efficiency of the coil is improved. And the phenomena of arc generation, short circuit and the like are prevented.

Description

technical field [0001] The invention relates to the technical field of dry-type transformers, in particular to a dry-type transformer with a coil compression structure. Background technique [0002] Dry-type transformers are widely used in local lighting, high-rise buildings, airports, terminal CNC machinery and equipment, etc. Simply speaking, dry-type transformers refer to transformers whose iron cores and windings are not immersed in insulating oil. Dry-type transformers are divided into closed and open structures. The closed-type transformer is located in a closed shell and does not directly contact the atmosphere. Due to poor sealing and heat dissipation conditions, it is mainly used for mining and belongs to explosion-proof type. The open structure body is in direct contact with the atmosphere, and is suitable for relatively dry and clean rooms. Generally, there are two cooling methods: air self-cooling and air cooling. The open structure has high heat dissipation effi...

AI Technical Summary

Problems solved by technology

The open structure body is in direct contact with the atmosphere and is suitable for relatively dry and clean rooms. Generally, there are two cooling methods: air self-cooling and air cooling. The open structure has high heat dissipation efficiency, but it is easy to be stained with dust and debris and affect the operation of the equipment. , and it is easy to make the coil winding loose in the exposed environment, causing safety hazards

Images