Fresh air purification control method for range hood

Fresh air purification control method for range hood

  • CN 106,931,478 B
  • Filed: 12/31/2015
  • Issued: 08/06/2021
  • Est. Priority Date: 12/31/2015
  • Status: Active Grant
First Claim
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1. A fresh air purification control method for a range hood, the range hood comprises a fan and a main controller, the fan is provided with a plurality of operating gears, and is characterized in that,the range hood is provided with a fresh air purification function, a plurality of working states are arranged under the fresh air purification function, the working states comprise a plurality of states of the fan running under different rotating speed gears, the running set time of the fan is set under each working state, and the main controller receives a fresh air purification execution instruction during the execution of the fresh air purification function;

  • collecting gas detection values in the current environment, wherein the gas detection values comprise odor detection values collected by an odor sensor and particulate matter concentration detection values collected by a concentration sensor, and calculating the gas detection values of the current environment according to the sampling ratio of the odor detection values and the concentration detection values;

    calculating the variation of the gas detection value and the reference value, wherein the range of the gas variation is divided into different ranges, and the working state of the fan is matched with the range of the gas variation;

    the main controller controls the fan to execute different working states according to the range section in which the gas variation falls until the fresh air purification function is finished;

    the control method also comprises the step of switching the working state under the current working state;

    the switching working state comprises the following steps of reducing the rotating speed of the fan and increasing the rotating speed of the fan;

    after the operation setting time in the current state is finished, the fan executes the working state of a lower gear;

    the gear quick-change time is set in the execution process of increasing the rotating speed of the fan, the gear quick-change time is smaller than the operation set time of each working gear, and after the gear in the current state is executed to the gear quick-change time, the fan is shifted up to the gear in the range of the corresponding gas variation.

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