Defogging and defrosting device for locomotive front windshield glass

Abstract

The invention discloses a defogging and defrosting device for locomotive front windshield glass. The defogging and defrosting device comprises a central wind pipe and ventilation pipes located on the two sides of the central wind pipe. The two sides of the central wind pipe are provided with wind guide pipes respectively. The wind guide pipes are communicated with the ventilation pipes. The ventilation pipes comprise elastic connection pipes for being arranged in the wind guide pipes in a sleeving mode. The pipe walls of the elastic connection pipes are provided with annular outward protrusions I in the peripheral direction. The pipe walls of the wind guide pipes are provided with annular protrusions II matched with the inner surfaces of the annular protrusions I. The central wind pipe and the ventilation pipes are provided with connection plates for fixing respectively. By means of the defogging and defrosting device for the locomotive front windshield glass, the ventilation pipes are more convenient and faster to assemble and disassemble, connection reliability is improved, the situations that wind leakage caused by deformation between connectors occurs and the air conditioner effect is affected are avoided, meanwhile the working speed is increased, and working efficiency is improved.

Description

technical field [0001] The invention relates to an auto part, in particular to a defogging and defrosting device for the front glass of a motor vehicle. Background technique [0002] The car defrosting device is connected with the heater or the engine cooling circulation system, and the high-temperature coolant from the system is turned into hot air through the heat exchange tank, and evenly blown to the inside of the front windshield through the central defrosting pipe for panoramic defrosting or defogging , to ensure driving safety. Bolts are usually used to connect the central defrosting pipe and the ventilation pipe, and the material is generally blow-molded. Because the blow-molded air duct is easily deformed, the connection between the two pipes is prone to misalignment during processing errors and manual operations. This will cause air leakage and affect the air conditioning effect. Contents of the invention [0003] Aiming at the deficiencies of the above-mention...

AI Technical Summary

Problems solved by technology

Bolts are usually used to connect the central defrosting pipe and the ventilation pipe, and the material is generally blow-molded. Because the blow-molded air duct is easily deformed, the connection between the two pipes is prone to misalignment during processing errors and manual operations. This will lead to air leakage and affect the effect of air conditioning

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