Air purifier and its sensor air guiding mechanism

Abstract

Disclosed are an air cleaner and a sensor air guide mechanism thereof. The air cleaner comprises a shell body, a cleaning air channel and a sensor assembly. An air inlet of the cleaning air channel is formed in the shell body. The sensor assembly is installed in the shell body. The sensor assembly comprises a casing and a sensor. A detection air channel is arranged in the casing. The sensor is installed in the casing and located in the detection air channel. An air inlet of the detection air channel is located in the shell body. An air outlet of the detection air channel is formed in the casing and communicated with the air inlet of the cleaning air channel. According to the air cleaner and the sensor air guide mechanism thereof, air current circulation is detected efficiently and rapidly; the real time detection property of the sensor is improved, and accordingly the sensitivity of the sensor is improved.

Description

technical field [0001] The invention relates to an air purifier and a sensor air guiding mechanism thereof. Background technique [0002] The dust sensor and gas sensor installed in the air purifier can quickly detect the amount of dust and harmful gases in the air, so that it can automatically adjust the purification speed according to the air quality, and effectively save energy while ensuring fresh air. Since the sensor needs to detect the real-time air quality, it needs to exchange with the outside air in real time. The air guide methods of the sensor in the existing air purifier are generally as follows: [0003] One is to use the heating components in the sensor to generate heat to heat the air, and use the movement of the hot air flow to generate air flow, so as to achieve the purpose of exchanging with the outside air. The defect of this method is that the movement of the hot air flow is very slow, and the gas exchange with the outside Very slow, the detection resul...

AI Technical Summary

Problems solved by technology

[0003] One is to use the heating components in the sensor to generate heat to heat the air, and use the movement of the hot air flow to generate air flow, so as to achieve the purpose of exchanging with the outside air. The defect of this method is that the movement of the hot air flow is very slow, and the gas exchange with the outside Very slow, the detection result is delayed, which affects the sensitivity of the sensor;

[0004] The other is to use a fan to generate airflow to exchange with the outside air. The advantage of this method is that the air exchange speed with the outside is fast and the sensor sensitivity is high; but the disadvantages are also very obvious. After-sales maintenance increases the cost, and because the fan has a certain defect rate, it will increase the risk of defective products to the cost; in addition, when the fan runs for a period of time, it will generate noise due to the wear of the bearing, which will affect the user experience and give the company's brand bring some adverse effects

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