Inner and outer air double-layer flow vehicle air-conditioner air inlet box assembly

Abstract

The invention discloses an inner and outer air double-layer flow vehicle air-conditioner air inlet box assembly and belongs to the field of vehicle air-conditioners. The inner and outer air double-layer flow vehicle air-conditioner air inlet box assembly comprises an air inlet box structure, a volute structure and an air blower structure. The air inlet box structure comprises an air inlet box shell body, an actuator, an outer circulation ventilation door, an inner circulation ventilation door, a cam disc, an outer door rocker arm and an inner door rocker arm. According to the inner and outer air double-layer flow vehicle air-conditioner air inlet box assembly, overlapping structures of the inner and outer circulation ventilation doors are arranged in the air inlet box shell body, working areas are decreased, so that overall volume and weight can be reduced, and energy efficiency is enhanced and energy conservation and environmental protectionare achieved under the premise of meeting the demand forair volume.

Description

technical field [0001] The invention belongs to the technical field of automobile air conditioners, and in particular relates to an air inlet box assembly for an automobile air conditioner with inner and outer air double-flow. Background technique [0002] With the growing demand of human beings for cars, the energy problem is also intensified. Therefore, double-flow automotive air conditioners came into being. However, the air intake box assembly of the double-layer flow automobile air conditioner on the market has a large volume of the air intake box structure and the volute structure, which is mainly manifested in its large size in the height direction, such as figure 1 As shown, its technical principle is: when the fresh air enters the air intake box structure from the fresh air inlet, the wind inside the vehicle also enters the air intake box structure from the inner circulation air inlet, and the fresh air enters the upper volute from the fresh air inlet to the upper ...

AI Technical Summary

Problems solved by technology

This design has the following deficiencies: First, there is a certain distance (column) between the impeller and the end face of the blower motor, which accounts for about 1 / 4-1 / 3 of the total length of the impeller, resulting in an increase in the distance between the volute structure and its assembly in the height direction. , so that the volume of the entire air-conditioning box increases and the weight increases, which is not conducive to the current lightweight and energy-saving requirements. The difficulty of dynamic balance increases, resulting in a decrease in product qualification rate

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