Control method and control system for automatically controlling gears of range hood, and range hood

A control method and technology of a control system, applied in the field of range hoods, can solve problems such as inaccuracy and failure of automatic control of range hood gears, etc., and achieve the effects of accurate scene judgment, good fume extraction effect, and guaranteed detection accuracy.

Inactive Publication Date: 2016-12-07
GUANGDONG MACRO GAS APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a control method for automatically controlling the gear position of the range hood to solve the problem of failure or inaccuracy of the automatic control of the range hood gear position caused by the pollution of the range hood sensor

Method used

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  • Control method and control system for automatically controlling gears of range hood, and range hood
  • Control method and control system for automatically controlling gears of range hood, and range hood

Examples

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Embodiment 1

[0028] figure 1 It is a schematic diagram of the control method for automatically controlling the gear position of the hood described in this embodiment. As shown in the figure, this embodiment discloses a control method for automatically controlling the gear position of the hood. The range hood using this method needs to be Set a temperature sensor at the air inlet of the range hood to detect temperature information, set a range hood sensor to detect the concentration of oil fume, and set the initial gear, temperature information threshold, oil smoke concentration threshold T0 and gear maintenance time of the range hood.

[0029] The initial gear described here can usually be set as the lowest gear, and of course it can also be the highest gear or the middle gear; the temperature information can be the maximum temperature T1 or the maximum temperature change rate t1, or both information can be included at the same time. The maximum temperature T1 can usually be set to 50 degr...

Embodiment 2

[0033] This embodiment discloses a control system for automatically controlling the range of a range hood based on the control method for automatically controlling the range of the range range. Such as figure 2 As shown, the automatic control system includes a controller and a fan for exhausting air controlled by the controller, and also includes: a temperature sensor for detecting temperature information and an oil fume sensor for detecting the concentration of oil fume, and the temperature sensor is set at At the air inlet of the range hood, the oil fume sensor is arranged at the place where the oil fume overflows, and the place where the oil fume overflows refers to the edge of the smoke collecting hood of the range hood. The method for the controller to automatically control the ventilation gear has been introduced in detail in the first embodiment, and the beneficial effect is the same as that described in the first embodiment, so it will not be repeated here.

Embodiment 3

[0035] This embodiment discloses a range hood. The range hood is provided with the control system for automatically controlling the gear position of the range hood as described in the second embodiment.

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Abstract

The invention provides a control method and control system for automatically controlling gears of a range hood, and the range hood. According to the control method for automatically controlling the gears of the range hood, after the range hood is started, the range hood works at the initial gear; if temperature information detected by a temperature sensor exceeds a temperature information threshold value or cooking fume concentration detected by a cooking fume sensor exceeds a cooking fume concentration threshold value T0, upshift operation is carried out on the range hood based on the initial gear, otherwise, the range hood keeps at the initial gear; and when the time that the range hood keeps at any gear exceeds the gear keeping time t0, downshift operation is carried out on the range hood based on the current exhausting gear until the lowest gear is reached. According to the control method, scene judgment is accurate, the cooking fume exhausting effect is good, pollution of cooking fume to the cooking fume sensor is lowered, and the sucking effect and control reliability of the range hood are improved.

Description

technical field [0001] The invention relates to the technical field of range hoods, in particular to a control method for automatically controlling gear positions of the range hood, a control system and the range hood. Background technique [0002] The range hood equipped with the fume sensor on the market usually obtains the concentration parameter of the fume directly through the fume sensor so as to realize the purpose of automatically controlling the air volume of the fume machine. However, the oil fume sensor is easily polluted by cooking oil fume, which leads to inaccurate data on the obtained oil fume concentration. As a result, the air volume cannot change with the change of the oil fume concentration, and the automatic control of the range hood gear is invalid or inaccurate. Contents of the invention [0003] In view of this, the present invention aims to propose a control method for automatically controlling the gear position of the range hood, so as to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 余少言仇明贵魏立陈静郝宏伟
Owner GUANGDONG MACRO GAS APPLIANCE
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