CN202709213U - Household variable-frequency microwave oven - Google Patents
Household variable-frequency microwave oven Download PDFInfo
- Publication number
- CN202709213U CN202709213U CN 201220231410 CN201220231410U CN202709213U CN 202709213 U CN202709213 U CN 202709213U CN 201220231410 CN201220231410 CN 201220231410 CN 201220231410 U CN201220231410 U CN 201220231410U CN 202709213 U CN202709213 U CN 202709213U
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- microprocessor
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Abstract
The utility model discloses a household variable-frequency microwave oven which comprises a power circuit, a detection circuit, and a rectifying filter circuit, a voltage switching circuit, a switch circuit, a multivoltage output circuit and a magnetic control tube which are mutually connected in sequence. An output end of the power circuit is connected with an input end of the rectifying filter circuit, an output end of the rectifying filter 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 switch circuit, an output end of the switch circuit is connected with an input end of the multivoltage output circuit, and an output end of the multivoltage output circuit is connected with an input end of the magnetic control tube. The detection circuit comprises a voltage and current detection circuit and a microprocessor mutually connected, 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 switch circuit. An input end of the voltage and current detection circuit is connected with an output end of the multivoltage output circuit. The household variable-frequency microwave oven is uniform in heating, simple and reasonable in structure, and convenient to operate, and heating efficiency and speed are improved.
Description
Technical field
The utility model relates to a kind of household electrical appliance for kitchen use, particularly relates 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. partly form.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 agitator 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 easily uneven differently from conventional microwave oven, the frequency-conversion microwave oven utilization is adjusted automatically, the microwave energy of continuous wave output, can satisfy different foods to the requirement of different firepower, really realizes the auto-control from strong fire to weak fire.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%.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of domestic variable frequency micro-wave oven is provided, and homogeneous heating is simple and reasonable, has improved the efficiency of heating surface and speed, and is easy to operate.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of domestic variable frequency micro-wave oven, comprise power circuit, further comprise successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, times voltage follower 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 input of the output connecting valve circuit of voltage conversion circuit, the output of on-off circuit connects the input of times voltage follower 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 times voltage follower circuit.
Compared with prior art, the beneficial effects of the utility model are: by rectifying and wave-filtering, make micro-wave oven powered operation power more stable, by frequency conversion, the energy homogeneous heating improves the efficiency of heating surface.
Description of drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
The specific embodiment
Be elaborated with reference to accompanying drawing below in conjunction with embodiment, in order to technical characterictic of the present utility model and advantage are carried out more deep annotation.
Schematic block circuit diagram of the present utility model as shown in Figure 1, a kind of domestic variable frequency micro-wave oven comprises power circuit, further comprises successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, times voltage follower 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 input of the output connecting valve circuit of voltage conversion circuit, the output of on-off circuit connects the input of times voltage follower 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 times voltage follower circuit.
Operation principle of the present utility model is: after the voltage energising, by by voltage conversion circuit voltage being changed behind the filter rectification, enter on-off circuit, on-off circuit connects magnetron after connecting times voltage follower circuit, the work of control micro-wave oven.Voltage and current detection circuit is delivered to microcontroller after a times voltage follower 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 above-described embodiment is not to be to restriction of the present utility model, and under the prerequisite that does not break away from utility model design of the present utility model, any apparent replacement is all within protection domain of the present utility model.
Claims (1)
1. a domestic variable frequency micro-wave oven comprises power circuit, it is characterized in that: further comprise successively interconnective current rectifying and wave filtering circuit, voltage conversion circuit, on-off circuit, times voltage follower 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 input of the output connecting valve circuit of voltage conversion circuit, the output of on-off circuit connects the input of times voltage follower circuit, the output of voltage-multiplying circuit connects the input of magnetron, further comprise 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, 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 times voltage follower circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231410 CN202709213U (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220231410 CN202709213U (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202709213U true CN202709213U (en) | 2013-01-30 |
Family
ID=47589509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220231410 Expired - Fee Related CN202709213U (en) | 2012-05-22 | 2012-05-22 | Household variable-frequency microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202709213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166450A (en) * | 2017-05-04 | 2017-09-15 | 安徽庆恒信息科技有限公司 | Intelligent microwave oven with frequency conversion function |
-
2012
- 2012-05-22 CN CN 201220231410 patent/CN202709213U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166450A (en) * | 2017-05-04 | 2017-09-15 | 安徽庆恒信息科技有限公司 | Intelligent microwave oven with frequency conversion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130522 |