Air pipe used for automotive air conditioning and preparation method of air pipe

Abstract

The invention discloses an air pipe used for an automotive air conditioning and a preparation method of the air pipe. The air pipe comprises an air inlet interface, an air outlet interface and a pipe body, the pipe body comprises a first pipe body and a second pipe body, and the first pipe body and the second pipe body are separately comprises an anti-impact layer, a voice absorption layer, a seal layer and a damping shock absorption layer, wherein the anti-impact layer, the voice absorption layer, the seal layer and the damping shock absorption layer are sequentially arranged from the outside to the inside in a stack manner. The preparation method of the air pipe which is used for the automotive air conditioning comprises the following steps: stacking and spreading the anti-impact layer, the voice absorption layer and the like sequentially from the top to the bottom; performing compression molding to form a pre-molding part; performing cooling sizing on the pre-molding part; cutting the pre-molding part subjected to cooling sizing to obtain the first pipe body and the second pipe body; and welding the side edges of the obtained first pipe body and second pipe body through an ultrasonic wave to obtain the pipe body. The air pipe has the characteristics that the weight is light, the strength is high, the pipe is not easy to deform, the costs are low, the pipe can be recycled, the voice absorption is high and the like, overcomes deficiencies of current thermoplastic plastic injection air conditioning vent pipes in aspects such as basic performance, environmental suitability, light amounts and low costs, voice absorption and noise reduction.

Description

technical field [0001] The invention relates to an air duct for an automobile air conditioner and a preparation method thereof. Background technique [0002] The automotive air conditioning system is a device that cools, heats, ventilates and purifies the air in the cabin. It can provide a comfortable riding environment for the passengers, reduce the driver's fatigue intensity and improve driving safety. The air conditioning system consists of refrigeration system, heating system, ventilation pipeline, air purification device and control system. And the ventilation pipe in the prior art mainly comprises left ventilation pipe, right ventilation pipe and central ventilation pipe. [0003] In the era of more and more pursuit of high performance, environmental protection, energy saving, lightweight, and individualization, the same requirements for the components of the air conditioning system in the car are also getting higher and higher. In the existing technology, performan...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an air duct for automobile air conditioners in order to overcome the defects of poor weather resistance, post-shrinkage phenomenon, easy aging, and poor sound absorption effect of the air duct for automobile air conditioners in the prior art. and its preparation method

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