Energy-saving control method and system of microwave oven

A control method and technology for microwave ovens, applied in the field of microwave ovens, can solve the problems of high cost, low stability and safety, and large energy consumption, and achieve the effects of stable heating, food assurance, and precise control.

Inactive Publication Date: 2017-12-22
NINGBO DUNHE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide an energy-saving control method for microwave ovens, and solve the problems of low stability and safety, high cost, and large energy consumption of traditional microwave heating control methods

Method used

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  • Energy-saving control method and system of microwave oven
  • Energy-saving control method and system of microwave oven

Examples

Experimental program
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Effect test

Embodiment 1

[0030] refer to figure 1 , an energy-saving control method for a microwave oven. When an instruction to start a microwave oven is received, the temperature of the cavity of the microwave oven is detected in real time; according to the temperature of the cavity, the opening and closing of different temperature switches are controlled, thereby realizing automatic segmental control and delivery to The power of the heating tube of the microwave oven is used to control the temperature of the cavity during the continuous operation of the heating tube until the temperature of the cavity reaches the predetermined temperature, and then the microwave oven is turned off to end the heating.

[0031] According to the temperature of the cavity, the steps of controlling the power delivered to the heating tube are as follows:

[0032] The cavity temperature is set to three temperature ranges, respectively 0-T1, T1-T2, T2-T3, each temperature range corresponds to a power heating tube, respecti...

Embodiment 2

[0035] refer to figure 2 , the temperature detection unit 101 is used to detect the cavity temperature of the microwave oven in real time when receiving the instruction to start the microwave oven, the temperature detection unit 101 is a temperature sensor, which is arranged on the cavity of the microwave oven, and is used to detect the cavity temperature signal, And pass this signal to the temperature switch S0, S1, S2. The control circuit 102 is connected to the temperature switch and the coil of the relay to control the heating of the heating tube in sections. The control circuit 102 is connected to the 12V power supply V, and the temperature switches S0, S1, and S2 are connected in parallel to the control circuit. At the same time, the temperature switches S0, S1, and S2 They are respectively connected in series with the relay coils KM1, KM2 and KM3, and the main circuit 103 is controlled by closing and disconnecting the relay coils KM1, KM2 and KM3, and the control is sa...

Embodiment 3

[0038] refer to image 3 , the electrical schematic diagram of the main circuit and the control circuit, the control circuit is connected to the 12V power supply V, the resistor R2 is connected in series, and then the collector of the transistor is connected in series, the emitter of the transistor is grounded to GND, the base is connected in series with the bias resistor R1, and at the same time , the temperature resistor S0 is connected in series with the relay coil KM1, the temperature resistor S1 is connected in series with the relay coil KM2, the temperature resistor S2 is connected in series with the relay coil KM3, and then connected in parallel to the circuit, connecting the emitter and the collector, and the collector and the base in parallel Resistor R3 and the left end of resistor R1 are connected in parallel to resistor R4 and connected to the emitter; the main circuit is connected to 220V AC power supply, and at the same time, the switch QS is connected to control ...

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Abstract

The invention relates to the technical field of microwave ovens, in particular to an energy-saving control method and system of a microwave oven. The control method comprises the steps of (1) detecting the temperature of a cavity of the microwave oven in real time when receiving an instruction for starting the microwave oven; and (2) controlling turn-on and turn-off of different temperature switches to conduct automatic sectional control on the transmitted power of heating tubes of the microwave oven so as to control the temperature of the cavity in the continuous operating process of the heating tube. By means of the energy-saving control method and system, sectional heating of the heating tubes is realized through setting temperature intervals; heating is stable; control is accurate; the control stability is improved; meanwhile, through sectional heating control and continuous heating of the heating tubes, energy consumption is reduced while food tastiness is guaranteed.

Description

technical field [0001] The invention relates to the technical field of microwave ovens, in particular to an energy-saving control method and control system for microwave ovens. Background technique [0002] With the improvement of people's living standards, microwave ovens have gradually become a common household appliance. However, when using the grilling and hot air functions of the microwave oven, in order to maintain the cavity temperature of the microwave oven within a certain temperature range, the temperature of the cavity is usually indirectly controlled by controlling the on-off of the heating tube, and the on-off control of the heating tube is used to control the temperature of the cavity. The food cannot be continuously heated, which affects the taste and surface coloring effect of the food; at the same time, the way of controlling the on-off of the heating pipe will cause the central temperature of the cavity to fluctuate in a wide range (usually 30°C), which als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C7/02F24C7/08
CPCH05B6/68
Inventor 叶志杰赵艳朱婷
Owner NINGBO DUNHE TECH CO LTD
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