Noise-reducing blower inlet windproof ring device of vehicle air conditioner

Abstract

The invention discloses a noise-reducing blower inlet windproof ring device of a vehicle air conditioner. The device comprises a volute arranged on an impeller of a blower in a covering mode, wherein an air inlet and an air outlet are arranged in the volute, the edge of the air inlet protrudes and extending to the inside of the volute to form a first windproof ring. The inner surface of the volute is provided with a second windproof ring and a third windproof ring in a protruding mode, the second windproof ring is sleeved on the outer circumference of the first windproof ring, a distance exists between the second windproof ring and the first windproof ring, and the third windproof ring protrudes inward and is arranged on the air outlet of the volute in an annular mode. Due to the fact that the noise-reducing blower inlet windproof ring device of the vehicle air conditioner is additionally arranged, an air inlet single-face windproof ring of a traditional blower is changed into a double-face windproof ring an a bottom windproof ring, influences of return air of the blower on efficiency of the blower and noise reduction of the air conditioner are greatly reduced, air amount of the air conditioner is further improved, inlet return flow noise is lowered, and performance of the air conditioner and comfort of a vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of an air-conditioning box, in particular to a noise-reducing windproof ring device at the inlet of an automobile air-conditioning blower. Background technique [0002] Under the background of increasingly intensified competition in the automobile industry at this stage, the major automobile manufacturers are increasingly emphasizing the high performance and comfort of the car, so as to be in the leading position in the competition of similar models and quickly launch new models to occupy a place in the market. High performance refers to the ability to provide greater energy conversion (cooling and heating) at the same or lower power consumption, so that the vehicle can obtain the desired results (cooling and heating) in a shorter time , At the same time, this is also the performance of energy saving and low carbon; comfort refers to providing passengers with greater comfort under the premise of ensuring hig...

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Problems solved by technology

[0003] At this stage, such as figure 1 and figure 2 As shown, when designing the air-conditioning blower inlet device, the designers of the automobile air-conditioning box follow the traditional design ( figure 1 ), but at present, the design of automotive air-conditioning boxes is becoming more and more compact, the volume is getting smaller and smaller, and the resistance of the air-conditioning box is a

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