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Infrared touch control method and system for extractor hood

A technology of infrared touch and range hood, which is applied in the field of kitchen and bathroom appliances, can solve the problems of large standby power consumption, large working current, severe heat dissipation, etc., and achieve the effects of low standby power consumption, small heat generation and high reliability

Active Publication Date: 2015-04-22
GUANGDONG HISENSE HOME APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The infrared emitting diode used in the infrared touch switch usually has a large working current. If it is in the working state (emitting infrared light) for a long time, it will cause large standby power consumption and severe heat dissipation problems. Therefore, it cannot be used like a commonly used capacitive touch switch. As the touch sensing chip in the computer is in the working state for a long time, it is necessary to find an infrared touch control method that can maintain low standby power consumption and low heat generation without affecting the sensitivity of the touch key

Method used

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  • Infrared touch control method and system for extractor hood
  • Infrared touch control method and system for extractor hood
  • Infrared touch control method and system for extractor hood

Examples

Experimental program
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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, an infrared touch control method of a range hood comprises the following steps:

[0050] S1: The infrared emitting device periodically emits infrared light to the filter;

[0051] S2: Each infrared receiving sensor corresponds to a touch area on the filter to form a virtual infrared touch button. After the infrared touch button is touched by a finger, the infrared receiving sensor periodically collects the infrared light reflected by the corresponding touch area on the filter. The optical signal is converted into an electrical signal and sent to the infrared touch controller. The infrared touch controller judges the action of the infrared touch button on the filter according to the received signal, and sends electricity to the motor of the range hood or the lighting lamp according to the action of the infrared touch button. Send corresponding control signals;

[0052] S3: The motor or lighting lamp of the range hood receives the control sign...

Embodiment 2

[0072] like Figure 5-6 As shown, an infrared touch control system of a range hood includes an infrared touch switch assembly control substrate 26 installed on the range hood body, an optical filter 21, an infrared emitting device 22, a plurality of infrared receiving sensors 24 and an infrared touch Controller 25; Infrared emitting device 22 and infrared receiving sensor 24 are installed on the infrared touch switch assembly control substrate 26, and optical filter 21 is pasted on the infrared receiving sensor 24, and each infrared receiving sensor 24 is corresponding on the optical filter 21 A touch area constitutes a virtual infrared touch key, and the infrared emitting device 22 is positioned at the end face of the optical filter 21 so that its light-emitting direction is perpendicular to the end face of the optical filter 21 and parallel to the photosensitive surface of the infrared receiving sensor 24. The touch controller 25 is electrically connected, and the infrared t...

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Abstract

The invention provides an infrared touch control method and system for an extractor hood. The infrared touch control method for the extractor hood comprises the following steps that S1, an infrared emitting device emits infrared light to a light filter periodically; S2, an infrared receiving sensor acquires infrared light reflected by the light filter, converts a light signal into an electric signal and sends the electric signal to an infrared touch controller, and the infrared touch controller judges the action of an infrared touch key on the light filter according to the received signal and electrically sends a corresponding control signal to a motor or a lighting lamp of the extractor hood; S3, the motor or the lighting lamp of the extractor hood receives the control signal sent by the infrared touch controller and gives a corresponding response. According to the infrared touch control method and system for the extractor hood, the infrared light emitting device emits infrared light to the light filter periodically so as to drive the infrared touch controller to control the extractor hood, compared with a capacitive touch type switch, the influence of oil water is small, long-term operation of the infrared emitting device is not needed, and stand-by power consumption and heating quantity are kept low.

Description

technical field [0001] The invention relates to the technical field of kitchen and bathroom appliances, in particular to an infrared touch control method and system for a range hood. Background technique [0002] The range hood with touch control has been favored in recent years because of its stylish appearance and strong sense of technology. The commonly used capacitive touch switch is based on the weak capacitance change generated when an electrically conductive object (such as a finger) touches the sensing electrode. When the external environment changes greatly (such as when the panel or fingers are covered with oil and water), it is easy to invalidated. [0003] Because the infrared touch switch is based on the optical principle, it is less affected by oil and water stains and has high reliability. The infrared emitting diode used in the infrared touch switch usually has a large working current. If it is in the working state (emitting infrared light) for a long time,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C15/20
CPCF24C15/2021
Inventor 郭军波英文梁之博
Owner GUANGDONG HISENSE HOME APPLIANCES CO LTD
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