Detection method and microwave oven

A detection method and microwave oven technology are applied in microwave heating, electric/magnetic/electromagnetic heating, electric heating devices, etc., and can solve the problems of complex circuit structure, microwave leakage, and high cost.

Inactive Publication Date: 2017-06-20
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution needs to drill holes in the heating cavity, which easily causes microwave leakage, and the circuit structur

Method used

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  • Detection method and microwave oven
  • Detection method and microwave oven
  • Detection method and microwave oven

Examples

Experimental program
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Effect test

Embodiment 1

[0055] see figure 1 , which shows a detection method provided by an embodiment of the present invention, the method can be applied to a microwave oven, and the method can include:

[0056] S101: When the microwave generating device of the microwave oven is in a working state, collect the sound signal in the heating cavity of the microwave oven;

[0057] In a specific implementation process, the microwave generating device may be a semiconductor microwave source, a magnetron, and the like.

[0058] S102: Detect whether the sound signal includes the sound of metal sparking;

[0059] S103: When there is a metal sparking sound, turn off the microwave generating device of the microwave oven.

[0060] It should be noted that when there is a metal vessel in the heating chamber, the metal vessel will reflect the microwave under the working state of the microwave generating device. When the metal vessel continues to reflect the microwave at a high speed, sparks will appear on the sur...

Embodiment 2

[0081] see Figure 5 The schematic diagram of the structure of the microwave oven is shown. In the embodiment of the present invention, the microwave oven can be a microwave oven with microwave heating function, or a light wave oven with both microwave heating and light wave heating functions, or other microwave ovens integrated with microwave heating functions. Home appliances. Such as Figure 5 As shown, generally, a microwave oven may include: a box body 1 , and the box body 1 includes a heating cavity 2 .

[0082] Such as Figure 5 As shown, the microwave oven involved in this embodiment includes a microwave generating device 501 and a sound collecting device 502 in the heating cavity 2, and a detection device 503 and a controller 504 arranged in the box body 1; wherein,

[0083] A sound collecting device 502, configured to collect sound signals in the heating cavity 2 when the microwave generating device 501 is in a working state;

[0084] The detecting device 503 is ...

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Abstract

The invention provides a detection method and a microwave oven. The method comprises the steps that a sound signal in the heating chamber of the microwave oven is acquired when the microwave generating device of the microwave oven is in a working state; whether the sound signal includes a metal ignition sound is detected; and when the metal ignition sound exists, the microwave generating device of the microwave oven is turned off. A metal utensil is detected without drilling in the heating chamber. Microwave leakage is avoided. The microwave oven has the advantages of simple structure, low cost and high integration.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a detection method and a microwave oven. Background technique [0002] A microwave oven is a cooking appliance that uses food to absorb microwave energy in a microwave field to heat itself. Similar kitchen appliances also include microwave ovens. Its working principle is roughly that the microwave generating device (such as semiconductor microwave source, magnetron) in the microwave oven generates microwaves, and the water and other polar molecules in the food are driven by the microwaves to generate high-frequency rotation and friction, thereby making the food The temperature can rise sharply in a short period of time. [0003] However, microwaves cannot pass through metals. When microwaves touch metals, most of them will be reflected back. When metals continue to reflect microwaves at a high speed, sparks will appear on the metal surface. fire accident. Therefo...

Claims

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Application Information

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IPC IPC(8): H05B6/64
CPCH05B6/6432H05B6/6447
Inventor 孙裕文姜大秉
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD
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