CN102679418A - Household variable-frequency microwave oven - Google Patents
Household variable-frequency microwave oven Download PDFInfo
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- CN102679418A CN102679418A CN2012101600780A CN201210160078A CN102679418A CN 102679418 A CN102679418 A CN 102679418A CN 2012101600780 A CN2012101600780 A CN 2012101600780A CN 201210160078 A CN201210160078 A CN 201210160078A CN 102679418 A CN102679418 A CN 102679418A
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Abstract
The invention discloses a household variable-frequency microwave oven, comprising a power supply circuit and further comprising a rectifying filtering circuit, a voltage switching circuit, a switching circuit, a voltage-multiplying output circuit and a magnetron, which are connected with one another in sequence, wherein an output end of the power supply circuit is connected with an input end of the rectifying filtering circuit; an output end of the rectifying filtering circuit is connected with an input end of the voltage switching circuit; an output end of the voltage switching circuit is connected with an input end of the switching circuit; an output end of the switching circuit is connected with an input end of the voltage-multiplying output circuit; an output end of the voltage-multiplying output circuit is connected with an input end of the magnetron; the household variable-frequency microwave oven comprises a detection circuit; the detection circuit comprises a voltage and current detection circuit and a microprocessor, which are connected with each other; and an output end of the voltage and current detection circuit is connected with an input end of the microprocessor. The microprocessor is in bidirectional communication connection with the switching circuit. An input end of the voltage and current detection circuit is connected with the output end of the voltage-multiplying output circuit. The household variable-frequency microwave oven has the advantages of uniform heating, and simple and reasonable structure, improves heating efficiency and speed, and is convenient to operate.
Description
Technical field
The present invention relates to a kind of household electrical appliance for kitchen use, particularly relate to a kind of domestic variable frequency micro-wave oven.
Background technology
Micro-wave oven is a kind of modernization cooking kitchen range with microwave heating of food.Microwave is a kind of electromagnetic wave.Micro-wave oven is by power supply, and magnetron, control circuit and cooking cavity etc. are partly formed.Power supply provides about 4000 volts of high pressure to magnetron, and magnetron produces microwave continuously under the power supply excitation, pass through Wave guide system again, is coupled in the cooking cavity.Near the import department of cooking cavity, a rotatable stirrer is arranged, because agitator is the metal of fan shape, the reflection that after rotation is got up microwave is had all directions is so can be evenly distributed in microwave energy in the cooking cavity.
Heat uneven differently easily with conventional microwave oven, the utilization of variable frequency microwave stove adjusts automatically, the microwave energy of output continuously, can satisfy the requirement of different foods to different firepower, really realizes the auto-control from strong fire to weak fire.The mouthfeel and the color and luster of food are guaranteed, also fully retain the nutritional labeling of food.And during the long-time low-power cooking, the phenomenon that food surface or edge also can not occur burning.On cooking speed, frequency conversion is steamed cube micro-wave oven and is adopted frequency converter to substitute high-tension transformer and high-voltage capacitance etc., has reduced the loss of power supply conversion portion, and the thermal efficiency improves more than 5%, makes effective power promote nearly 10%.Under the same conditions, cooking time has just shortened 10%.Energy-conservation aspect, efficiency exceed GB one-level energy consumption standard 62% up to about 64%.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of domestic variable frequency micro-wave oven is provided, homogeneous heating, simple and reasonable, improved the efficiency of heating surface and speed, easy to operate.
In order to achieve the above object, the technical scheme that the present invention adopts is: a kind of domestic variable frequency micro-wave oven, comprise power circuit, and further comprise interconnective successively current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, multiplication of voltage output circuit, magnetron; The output of power circuit connects the input of current rectifying and wave filtering circuit; The output of current rectifying and wave filtering circuit connects the input of voltage conversion circuit; The output of voltage conversion circuit connects the input of on-off circuit; The output of on-off circuit connects the input of multiplication of voltage output circuit, and the output of voltage-multiplying circuit connects the input of magnetron.
Further, the domestic variable frequency micro-wave oven further comprises testing circuit, and described testing circuit comprises interconnective voltage and current detection circuit and microprocessor, and the output of voltage and current detection circuit connects the input of microprocessor.
Further, described microprocessor is connected with the on-off circuit both-way communication.
Further, the input of described voltage and current detection circuit connects the output of multiplication of voltage output circuit.
Compared with prior art, the invention has the beneficial effects as follows: through rectifying and wave-filtering, make micro-wave oven powered operation power more stable,, can evenly heat, improve the efficiency of heating surface through frequency conversion.
Description of drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
The specific embodiment
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, so that technical characterictic of the present invention and advantage are carried out more deep annotation.
Schematic block circuit diagram of the present invention is as shown in Figure 1, and a kind of domestic variable frequency micro-wave oven comprises power circuit, further comprises interconnective successively current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, multiplication of voltage output circuit, magnetron; The output of power circuit connects the input of current rectifying and wave filtering circuit; The output of current rectifying and wave filtering circuit connects the input of voltage conversion circuit; The output of voltage conversion circuit connects the input of on-off circuit; The output of on-off circuit connects the input of multiplication of voltage output circuit, and the output of voltage-multiplying circuit connects the input of magnetron.
Further, the domestic variable frequency micro-wave oven further comprises testing circuit, and described testing circuit comprises interconnective voltage and current detection circuit and microprocessor, and the output of voltage and current detection circuit connects the input of microprocessor.
Further, described microprocessor is connected with the on-off circuit both-way communication.
Further, the input of described voltage and current detection circuit connects the output of multiplication of voltage output circuit.
Operation principle of the present invention is: after the voltage energising, through through voltage conversion circuit voltage being changed behind the filter rectification, get into on-off circuit, on-off circuit connects magnetron after connecting the multiplication of voltage output circuit, the work of control micro-wave oven.Voltage and current detection circuit is delivered to microcontroller after the multiplication of voltage output circuit is detected, and microcontroller reacts working condition to on-off circuit, and on-off circuit is again according to the duty adjustment of electric current and voltage situation to micro-wave oven.
The content of mentioning in the foregoing description is not to be to qualification of the present invention, and under the prerequisite that does not break away from inventive concept of the present invention, any conspicuous replacement is all within protection scope of the present invention.
Claims (1)
1. a domestic variable frequency micro-wave oven comprises power circuit, it is characterized in that: further comprise interconnective successively current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, multiplication of voltage output circuit, magnetron; The output of power circuit connects the input of current rectifying and wave filtering circuit; The output of current rectifying and wave filtering circuit connects the input of voltage conversion circuit; The output of voltage conversion circuit connects the input of on-off circuit; The output of on-off circuit connects the input of multiplication of voltage output circuit, and the output of voltage-multiplying circuit connects the input of magnetron, further comprises testing circuit; Described testing circuit comprises interconnective voltage and current detection circuit and microprocessor; The output of voltage and current detection circuit connects the input of microprocessor, and described microprocessor is connected with the on-off circuit both-way communication, and the input of described voltage and current detection circuit connects the output of multiplication of voltage output circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101600780A CN102679418A (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101600780A CN102679418A (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102679418A true CN102679418A (en) | 2012-09-19 |
Family
ID=46811731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101600780A Pending CN102679418A (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102679418A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113656A1 (en) * | 2015-12-29 | 2017-07-06 | 广东美的厨房电器制造有限公司 | Microwave oven circuit, method and device for controlling microwave oven circuit and microwave oven |
| CN107172736A (en) * | 2017-05-04 | 2017-09-15 | 安徽庆恒信息科技有限公司 | Intelligent microwave oven with switch control |
-
2012
- 2012-05-22 CN CN2012101600780A patent/CN102679418A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017113656A1 (en) * | 2015-12-29 | 2017-07-06 | 广东美的厨房电器制造有限公司 | Microwave oven circuit, method and device for controlling microwave oven circuit and microwave oven |
| CN107172736A (en) * | 2017-05-04 | 2017-09-15 | 安徽庆恒信息科技有限公司 | Intelligent microwave oven with switch control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120919 |