Unlock instant, AI-driven research and patent intelligence for your innovation.

A control device for a microwave oven and the microwave oven

A control device, microwave oven technology, applied in microwave heating, electric heating devices, household stoves/stoves, etc., can solve the problems of smoke and fire, food heating, and the timer cannot return to time 0, so as to avoid smoke and fire, The effect of optimizing circuit design

Active Publication Date: 2022-04-29
GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD +1
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. When the quality of the timer is poor, if the timer motor cannot run, the timer cannot return to the time 0, which will cause the microwave oven to continue to run. When there is food in the oven cavity, the food will be overheated and cause the risk of smoke and fire
[0005] 2. During the use of the microwave oven, when the internal motor coil of the timer is disconnected due to vibration and other reasons, the timer motor will stop running and the timer cannot return to time 0, which will cause the microwave oven to continue to run. When there is food in the oven cavity when the food is overheated, there is a risk of smoke and fire
[0006] 3. During the use of the microwave oven, when the connection wire of the internal motor of the timer is soldered due to long-term oxidation of the solder joints, the timer motor will also stop running and the timer cannot return to time 0, which will cause the microwave oven to continue to run. With food in the cavity, there is a risk of overheating of the food causing smoke and fire

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A control device for a microwave oven and the microwave oven
  • A control device for a microwave oven and the microwave oven
  • A control device for a microwave oven and the microwave oven

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 2 As shown, a control device for a microwave oven in this embodiment includes: a timer 1, a high-voltage transformer 2, a high-voltage capacitor 3, a magnetron 4, a magnetron thermostat 5, a fan motor 9, a timer motor 10, Turntable motor 11 , furnace light 12 , monitoring switch 13 , primary switch 14 , secondary switch 15 , filter board 16 , AC power supply 17 , high voltage fuse 18 , and high voltage diode 19 . Timer 1 is a dual-axis timer.

[0040] Timer 1 includes four terminals, consisting of a first timer contact 1 (ie time switch), a second timer contact 2 (ie power switch) and a timer motor 10, wherein the timer motor 10 is composed of the first terminal 1 and the fourth terminal M form a contact; the first timer contact 1 (ie the time switch) is composed of the first terminal 1 and the second terminal 2; and the second timer contact 2 (ie the power switch) is composed of The third terminal 3 and the second terminal 2 form contacts; the first term...

Embodiment 2

[0047] like image 3 As shown, a control device for a microwave oven in this embodiment includes: a timer 1, a high-voltage transformer 2, a high-voltage capacitor 3, a magnetron 4, a magnetron thermostat 5, a fan motor 9, a timer motor 10, Turntable motor 11 , furnace light 12 , monitoring switch 13 , primary switch 14 , secondary switch 15 , filter board 16 , AC power supply 17 , high voltage fuse 18 , and high voltage diode 19 . Timer 1 is a dual-axis timer.

[0048] Timer 1 includes four terminals, consisting of a first timer contact 1 (ie time switch), a second timer contact 2 (ie power switch) and a timer motor 10, wherein the timer motor 10 is composed of the first terminal 1 and the fourth terminal M form a contact; the first timer contact 1 (ie the time switch) is composed of the first terminal 1 and the second terminal 2; and the second timer contact 2 (ie the power switch) is composed of The third terminal 3 and the second terminal 2 form a contact; the first term...

Embodiment 3

[0055] like Figure 4 As shown, a control device for a microwave oven in this embodiment includes: a timer 1, a high-voltage transformer 2, a high-voltage capacitor 3, a magnetron 4, a magnetron thermostat 5, a fan motor 9, a timer motor 10, Turntable motor 11 , furnace light 12 , monitoring switch 13 , primary switch 14 , secondary switch 15 , filter board 16 , AC power supply 17 , high voltage fuse 18 , high voltage diode 19 , controller 20 . Timer 1 is a dual-axis timer. The controller 20 can be realized by a single chip microcomputer, an FPGA or the like. The first end of the controller 20 is connected to the M terminal of the timer 1 , the second end is connected to the first end of the AC power source 17 , and the third end is connected to the second end of the AC power source 17 through the fan motor 9 .

[0056] The first terminal 1 of the timer 1 is connected to the first end of the AC power supply 17, the second terminal of the timer 1 is connected to one end of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A control device for a microwave oven and a microwave oven, comprising: a timer, a fan motor, an AC power supply, and a magnetron thermostat; wherein, the timer and the fan motor are connected in series between two ends of the AC power supply, and the timer A magnetron thermostat is connected with the AC power supply. The invention changes the timer motor and the fan motor from parallel to series by optimizing the circuit design. When the timer motor stops running due to a fault, the fan motor will also stop running, and the temperature of the magnetron thermostat will rise immediately. There is a risk of overheating of food resulting in smoke and fire due to abnormal continuous operation, and the risk of smoke and fire caused by overheating of high voltage transformers.

Description

technical field [0001] The invention belongs to the technical field of mechanical microwave ovens, and in particular relates to a control device of a microwave oven and a microwave oven. Background technique [0002] At present, the electrical circuit of a mechanical microwave oven is generally composed of timers, thermostats, fan motors, high-voltage transformers, high-voltage capacitors, magnetrons and other components. When the timer time is set, the circuit will be turned on automatically, and the microwave oven will work automatically until the timer time returns to 0 and the microwave oven stops working. [0003] In the electrical circuit of the prior art, the timer motor and the fan motor are in a parallel relationship, which has the following defects: [0004] 1. When the quality of the timer is poor, if the timer motor cannot run, the timer cannot return to time 0, which will cause the microwave oven to continue to run. When there is food in the oven cavity, the fo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H05B6/66H05B6/68H05B6/64F24C7/02
CPCH05B6/666H05B6/681H05B6/642F24C7/02
Inventor 戚志斌周钰波刘存黄鹏新冼伟杰
Owner GUANGDONG MIDEA KITCHEN APPLIANCES MFG CO LTD