Electric backset retarder winding framework for vehicle

Abstract

A vehicle used current vortex slow velocity unit coil frame adopts glass fiber pressing plastics as thermoplastic material. Its working temperature can reach more than 200 degree centigrade to satisfy long term and frequent operational requirement, its insulativity and mechanical protection quality also satisfying design requirements, glass fiber pressing plastics presenting charring structure after superheating fault, capable of keeping basic frame shape, unlikely to make assembly fault.

Description

technical field [0001] The invention relates to a coil skeleton of an eddy current retarder for a vehicle, which relates to an accessory of the eddy current retarder for a vehicle. Background technique [0002] The eddy current retarder used in vehicles is generally installed on the vehicle chassis, which converts the kinetic energy of the vehicle into heat energy and plays the role of auxiliary braking. Its working temperature is high and the working environment is harsh. The key part of the retarder is the coil part, because the total operating current of the retarder can reach more than 100A, so a little damage to the coil frame will directly lead to the failure of the retarder, and even a fire accident. Therefore, the requirements for the coil bobbin are: good insulation, heat resistance, mechanical protection and reasonable cost control; currently used coil bobbins are generally made of thermoplastic materials such as nylon 6, nylon 66, and nylon 1010. , insulation, an...

AI Technical Summary

Problems solved by technology

The key part of the retarder is the coil part, because the total operating current of the retarder can reach more than 100A, so a little damage to the coil frame will directly lead to the failure of the retarder, and even a fire accident

Therefore, the requirements for the coil bobbin are: good insulation, heat resistance, mechanical protection and reasonable cost control; currently used coil bobbins are generally made of thermoplastic materials such as nylon 6, nylon 66, and nylon 1010. , insulation, and processing costs can meet the needs, but there is a big shortage in heat resistance. The long-term working temperature is generally around 55 degrees Celsius, and it will soften or even melt in an environment of 100 degrees Celsius. Finished product eddy current retarder failure