Insulating bush made of thermoplastic material and production method thereof

Abstract

The invention relates to an insulating bush made of thermoplastic material and a production method thereof. The insulating bush comprises an insulting housing, a center conductor, and a shielding mesh. The insulating housing is formed based on casting by using a thermoplastic material; a through hole is formed in the center along the axial direction; and an annular inner cavity of the insulating bush is formed between the outer side surface of the through hole of the insulating bush and the inner side surface of the insulating bush. The center conductor is embedded into the through hole of the insulating housing. The shielding mesh is arranged inside the annular inner cavity of the insulating bush and is encircled by the insulating bush completely or partially. The shielding mesh encircles the center conductor. According to the invention, the structure is compact; the weight is light; and the bush can be installed conveniently. Because of the insulating housing made of the thermoplastic material, pores and small cracks can be eliminated; and the plastic material has a fast cooling and solidification speed. Moreover, the thermoplastic material can be repeatedly used after heating again, thereby realizing the good recycling property and eliminating the solidification process. Therefore, the production time is substantially reduced and the production efficiency is improved.

Description

technical field [0001] The invention relates to an insulating sleeve, in particular to an insulating sleeve using thermoplastic material and a production method thereof. Background technique [0002] Insulation bushing is a device for one or several conductors to pass through partitions such as walls or boxes to provide insulation and support. It is generally used in equipment with AC voltages higher than 1000V. It has excellent insulation performance, high reliability, and environmental adaptability. strong ability. [0003] At present, the insulating casing of the insulating sleeve is made of epoxy resin material, which is formed by vacuum casting or pressure gel process. This forming process requires a lot of materials, the finished product is heavy, and the processing efficiency is very low. It needs to be heated and cured later, and the processing consumes more energy. Large, waste materials cannot be recycled and are difficult to degrade, causing damage to the natural...

AI Technical Summary

Problems solved by technology

[0003] At present, the insulating casing of the insulating sleeve is made of epoxy resin material, which is formed by vacuum casting or pressure gel process. This forming process requires a lot of materials, the finished product is heavy, and the processing efficiency is very low. It needs to be heated and cured later, and the processing consumes more energy. Large, waste materials cannot be recycled and are difficult to degrade, causing damage to the natural environment

Moreover, the bonding strength of epoxy resin is not high, and problems such as pores and small cracks are prone to occur during the pouring process, which has a great impact on the insulation performance of electrical equipment.

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