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Range hood and control method thereof

A control method and technology for a range hood, which are applied in the fields of removing oil fume, heating methods, household stoves/stoves, etc., can solve the problems of increasing user workload, wasting energy, wasting resources, etc., so as to reduce standby power consumption, facilitate use, reduce wasteful effect

Active Publication Date: 2014-01-29
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to facilitate kitchen lighting and user operation, the existing range hoods are equipped with lighting lamps. After the current lighting lamps are turned on, they need to be turned off manually or by starting the countdown function. When functioning, the lighting is always powered on, which wastes resources, is inconvenient for users, and increases the workload of users
[0003] In addition, the range hoods currently on the market are convenient for users to operate and observe, and the display boards are displayed in real time, which will reduce the service life of electronic devices and waste energy at the same time.
In some range hoods, when there is no button operation within the specified time, the display panel will enter the power-saving mode. When the user wants to see the displayed content again, he must press a button or a certain switch, which is inconvenient to operate; The computer cannot enter the power saving mode, which will cause energy waste

Method used

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  • Range hood and control method thereof
  • Range hood and control method thereof

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Embodiment 1

[0027] figure 1 The functional block diagram of the range hood of this embodiment is shown. With reference to the diagram, the range hood of this embodiment includes a microprocessor, and a pyroelectric human body infrared sensor, a lighting lamp and a display panel respectively connected to the microprocessor. The pyroelectric human body infrared sensor detects whether there are people around the range hood, and transmits the detection result to the microprocessor, and the microprocessor controls the on / off of the lighting lamp and the display panel according to the detection result . Specifically, the pyroelectric human body infrared sensor is used to detect whether there are people around the range hood. When there are people, the microprocessor controls the lighting lamp and the display panel to be turned on according to the detection result of the pyroelectric human body infrared sensor. State, to realize the illumination of the operator and facilitate the operator to ob...

Embodiment 2

[0032] figure 2 A flow chart of the method for controlling the range hood in this embodiment is shown. Referring to the figure, the control method includes the following processes:

[0033] (1): Power-on initialization, that is, turn on the power, and the pyroelectric human body infrared sensor detects whether there are people around the range hood, and transmits the detection result to the microprocessor. The detection result controls the on / off of the illuminating lamp, the indicator light and the display panel;

[0034] Among them, the pyroelectric human body infrared sensor detects the target through the temperature difference between the target and the background. Its working principle is to use the pyroelectric effect. When a human body passes by, the heat received by the two pyroelectric elements is different, and the pyroelectric energy It is different, after passing through the signal processing circuit and the amplification circuit, the microprocessor can perceive ...

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Abstract

The invention relates to household appliances and electrical control technologies, and discloses a range hood. The range hood comprises a microprocessor as well as a pyroelectric human body infrared sensor, a floodlight and a display panel which are respectively connected with the microprocessor, wherein the pyroelectric human body infrared sensor is used for detecting whether people is around the range hood and transmitting the detection result to the microprocessor, and the microprocessor controls the floodlight and the display panel to be switched on and off according to the detection result. The invention also discloses a control method of the range hood. Due to the arrangement of the pyroelectric human body infrared sensor and the microprocessor with information processing and controlling functions, the range hood can automatically control the floodlight of the range hood to be turned on and off according to the condition that whether people is around the range hood, thus being convenient for operators to use, and reducing energy waste; furthermore, the range hood can automatically turns into a power saving mode according to the state of the range hood, so that stand-by power consumption of the range hood can be reduced.

Description

technical field [0001] The invention relates to household appliances and electrical control technology, in particular to a range hood and a control method thereof. Background technique [0002] In order to facilitate kitchen lighting and user operation, the existing range hoods are equipped with lighting lamps. After the current lighting lamps are turned on, they need to be turned off manually or by starting the countdown function. When functioning, the lighting lamp is always powered on to work, which wastes resources, is inconvenient for users to use, and increases the workload of users. [0003] In addition, the range hoods currently on the market are displayed on the display panel in real time for the convenience of users to operate and observe, which will reduce the service life of electronic devices and waste energy at the same time. In some range hoods, when there is no button operation within the specified time, the display panel will enter the power-saving mode. Wh...

Claims

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Application Information

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IPC IPC(8): F24C15/20
Inventor 付成先谢海军陈艳丽
Owner HAIER GRP CORP
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