Method for cleaning a range hood and range hood

By measuring the vibration amplitude and current value of the range hood's reference components to determine the oil stain index and cleaning mode, the problem of low cleaning efficiency in existing technologies is solved, enabling on-demand cleaning and avoiding the risks of resource waste and incomplete cleaning.

CN122170449APending Publication Date: 2026-06-09ZHEJIANG SUPOR KITCHEN & BATHROOM APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SUPOR KITCHEN & BATHROOM APPLIANCE CO LTD
Filing Date
2025-09-30
Publication Date
2026-06-09

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Abstract

This invention provides a method for cleaning a range hood and a range hood itself. The cleaning method includes the following steps: acquiring the vibration amplitude and current values ​​of a reference component; determining the current grease index based on the vibration amplitude and current values, and determining the grease level based on the current grease index; determining a corresponding cleaning mode based on the grease level, and controlling the cleaning module to clean designated components of the range hood according to the corresponding cleaning mode. This method, by determining the current grease index based on the vibration amplitude and current values ​​and determining the grease level based on the current grease index, can assess the grease accumulation status of the range hood based on the grease level, determine a corresponding cleaning mode based on the grease level, and control the cleaning module to clean designated components of the range hood according to the corresponding cleaning mode. This allows for on-demand cleaning based on the grease accumulation status on designated components of the range hood, improving cleaning effectiveness and avoiding resource waste or the risk of insufficient cleaning.
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Claims

1. A method for cleaning a range hood, characterized in that, Including the following steps: Obtain the vibration amplitude and current values ​​of the reference component; The current oil pollution index is determined based on the vibration amplitude value and the current value, and the oil pollution level is determined based on the current oil pollution index. as well as The corresponding cleaning mode is determined based on the level of oil stains, and the cleaning module is controlled to clean the designated parts of the range hood according to the corresponding cleaning mode.

2. The range hood cleaning method according to claim 1, characterized in that, The vibration amplitude value includes the current vibration amplitude value and the reference vibration amplitude value; the current value includes the starting current value and the reference current value; the step of determining the current oil pollution index based on the vibration amplitude value and the current value includes: The current oil pollution index is determined using the formula K = a*(f / f0-1) + b*(I / I0-1); Where K is the current oil pollution index, f is the current vibration amplitude value, f0 is the reference vibration amplitude value, I is the starting current value, I0 is the reference current value, a and b are weighting coefficients, and a+b=1.

3. The method for cleaning a range hood according to claim 2, characterized in that, In the step of determining the oil pollution level based on the oil pollution index, the oil pollution level includes one of a first level, a second level, or a third level, wherein when K is 0 to 0.3, the oil pollution level is the first level; when K is 0.3 to 0.6, the oil pollution level is the second level; and when K is 0.6 to 1.0, the oil pollution level is the third level.

4. The range hood cleaning method according to claim 3, characterized in that, In the step of determining the corresponding cleaning mode based on the oil stain level, the controller determines the cleaning mode by means of a preset oil stain level-cleaning parameter relationship table.

5. The range hood cleaning method according to claim 4, characterized in that, In the preset oil stain level-cleaning parameter relationship table, the cleaning parameters include total cleaning time T, steam-hot water time ratio S, and number of cycles N.

6. The method for cleaning a range hood according to claim 5, characterized in that, In the step of determining the corresponding cleaning mode based on the oil stain level, when the oil stain level is the first level, the cleaning mode is determined to be the first cleaning mode, in which: T is 30s~40s, S is 1:2, and N is 1 to 2 times; or, when the oil stain level is the second level, the cleaning mode is determined to be the second cleaning mode, in which: T is 60s~80s, S is 1:1, and N is 2 to 3 times; or, when the oil stain level is the third level, the cleaning mode is determined to be the third cleaning mode, in which: T is 100s~120s, S is 2:1, and N is 3 to 4 times.

7. The method for cleaning a range hood according to claim 6, characterized in that, The cleaning parameters also include hot water pressure P and hot water temperature C. In the first cleaning mode: P is 0.3MPa~0.4MPa and C is 60℃~80℃; or in the second cleaning mode: P is 0.4MPa~0.5MPa and C is 80℃~90℃; or in the third cleaning mode: P is 0.5MPa~0.6MPa and C is 90℃~100℃.

8. The method for cleaning a range hood according to claim 1, characterized in that, After the control cleaning module performs the cleaning steps on the designated components of the range hood according to the corresponding cleaning mode, the following steps are also included: The current vibration amplitude and current value of the reference component are obtained again; as well as The post-cleaning oil stain index is determined based on the current vibration amplitude value and the current current value. The post-cleaning oil stain index is then compared with the current oil stain index before cleaning. The cleaning effect is then determined based on the comparison result, so as to choose to clean again or end the cleaning process.

9. The method for cleaning a range hood according to claim 8, characterized in that, The step of comparing the oil stain index after cleaning with the current oil stain index before cleaning, and then judging the cleaning effect based on the comparison result, includes: The cleaning effect is judged according to the formula K2≤K*c; Where K is the current oil stain index before cleaning, K2 is the oil stain index after cleaning, and c is the preset cleaning effect coefficient.

10. A range hood, characterized in that, The method includes a fan, a detection module, a controller, and a cleaning module. The fan has a reference component, the detection module is disposed at the reference component, and the controller is electrically connected to the detection module and the cleaning module respectively to perform the range hood cleaning method as described in any one of claims 1-9.