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A constant air volume control method for a range hood

A range hood and control method technology, applied in the direction of oil fume removal, heating methods, household stoves/stoves, etc., can solve problems such as poor range hood effect, achieve good user experience, increase smoke exhaust power, and reduce noise

Active Publication Date: 2020-08-11
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the air volume is less than Q1, the oil fume effect will be poor

Method used

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  • A constant air volume control method for a range hood
  • A constant air volume control method for a range hood
  • A constant air volume control method for a range hood

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Embodiment Construction

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] Such as image 3 As shown in , the user turns on the indoor range hood and selects the maximum gear built into the range hood. The air volume range of this gear is [Q 1 ,Q 2 ], assuming that the built-in maximum gear is 10 gears, the default initial gear is 5 gears when starting up. At present, the control panel of the range hood basically has three fixed gears: strong, medium and weak, and each fixed gear corresponds to several built-in gears.

[0033] Such as Figure 4 As shown, the motor of the indoor range hood is a DC motor. To judge the current motor speed, use the relational expression of motor air volume-speed Q=A+B×n+C×n 2 to calculate the current speed at the corresponding gear. The actual air volume value Q. Compare the Q value with the difference between Q1 and Q2. If Q is greater than the Q2 value, it means that the ai...

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Abstract

The invention discloses a constant-air-volume control method for a range hood. According to the method, the number of all internally-arranged gears of an indoor unit is x, and the default initial gearof a high gear air volume interval [ Q1, Q2 ] is x / 2; when the operating gear of an indoor range hood is equal to x and the air volume is smaller than Q1, target air volume is reduced from [ Q1, Q2 ]to [ q1, q2 ], so that the gear is reduced, and noise is reduced; and when the target air volume is in the interval [ q1, q2 ], the number of the operating gear is smaller than x-2, the target air volume is changed from [ q1, q2 ] to [ Q1 and Q2 ], so that the air volume is increased, and the oil fume suction effect is improved. The method has the advantages that a constant-air-volume control method of the range hood is applied to a central flue system; from the point of reducing noise, when the start-up rate is extremely high, the air volume interval is properly reduced, a bit of the oil fume suction effect is sacrificed, so that the noise is reduced; the air exhaust amount of high floors is reduced, so that the flue exhaust power of low floors is increased, and the air exhaust volume ofthe low floors is increased; and meanwhile, the air volume of all the floors is ensured to be balanced and capable of meeting the flue exhaust requirement, so that the use experience of users is good.

Description

technical field [0001] The invention relates to an air volume control method, in particular to a constant air volume control method for a range hood. Background technique [0002] Most of the current high-rise residential buildings adopt a centralized smoke exhaust method. The indoor range hood, smoke pipe, check valve and public flue are connected to each other, so that the oil fume in the kitchen is discharged into the public flue through the indoor range hood through the smoke pipe. However, the cooking habits of Chinese people with soot and the current situation of large air volume and high wind pressure of existing range hoods make the pressure distribution in the public flue extremely uneven, and the pressure inside the flue is high. There is a problem with poor smoke exhaust. Especially for well-decorated high-rise residences, due to the poor performance of the indoor range hood, the quality of the flue cannot be guaranteed, the installation of the smoke pipe is not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 陈瑞
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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