CN202747426U - Heating device of microwave oven - Google Patents
Heating device of microwave oven Download PDFInfo
- Publication number
- CN202747426U CN202747426U CN 201220228828 CN201220228828U CN202747426U CN 202747426 U CN202747426 U CN 202747426U CN 201220228828 CN201220228828 CN 201220228828 CN 201220228828 U CN201220228828 U CN 201220228828U CN 202747426 U CN202747426 U CN 202747426U
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- Prior art keywords
- circuit
- microprocessor
- output
- heating device
- input
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- Expired - Fee Related
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Abstract
The utility model discloses a heating device of a microwave oven, which comprises a power supply circuit and further comprises a protection circuit, a rectifying circuit, a microprocessor, a drive circuit and a heating circuit which are connected with one another in sequence, wherein the output end of the power supply circuit is connected with the input end of the protection circuit, the output end of the protection circuit is connected with the input end of the rectifying circuit, the output end of the rectifying circuit is connected with the input end of the microprocessor, the output end of the microprocessor is connected with the input end of the drive circuit, and the output end of the drive circuit is connected with the input end of the heating circuit; and the heating device of the microwave oven further comprises a timing circuit connected with the output end of the microprocessor. The heating device of the microwave oven has the benefits that foods can be quickly heated, the loss of nutrients is reduced, and the operation is simple, convenient, safe and reliable.
Description
Technical field
The utility model relates to a kind of household electrical appliance for kitchen use, particularly relates to a kind of microwave-oven-heating device.
Background technology
Micro-wave oven (microwave oven/microwave) as its name suggests, is cooked with microwave and to be cooked.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.
The principle of heating using microwave is in brief: when microwave is to the food, always contain a certain amount of moisture in the food, and water is by polar molecule (the positive and negative charge center of molecule, even when external electric field does not exist, do not overlap yet) composition, the orientation of this polar molecule will change with microwave field.Because this motion of the polar molecule of water in the food.And the interaction between adjacent molecule, produced the phenomenon of similar friction, water temperature is raise, therefore, the temperature of food has also just risen.With the food of heating using microwave, because its inside also is heated simultaneously, whole object is heated evenly, programming rate is also fast.It gos deep into food 5cm and heats with the frequency of per second 24.5 hundred million times, the acceleration molecular running.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of microwave-oven-heating device is provided, and energy Fast Heating food reduces nutrition leak, and is simple to operation, safe and reliable.
In order to achieve the above object, the technical solution adopted in the utility model is: a kind of microwave-oven-heating device, comprise power circuit, and further comprise successively interconnective holding circuit, rectification circuit, microprocessor, drive circuit and heater circuit; The output of power circuit connects the input of holding circuit; The output of holding circuit connects the input of rectification circuit, and the output of rectification circuit connects the input of microprocessor, and the output of microprocessor connects the input of drive circuit, and the output of drive circuit connects the input of heater circuit.Further comprise the timing circuit that is connected to output end of microprocessor.
Compared with prior art, the beneficial effects of the utility model are: make micro-wave oven powered operation power more stable by rectification circuit; By timing circuit, be user-friendly to, and regularly can improve the security of using; By holding circuit is set, improve the use of microwave ovens safety coefficient.
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 microwave-oven-heating device comprises power circuit, further comprises successively interconnective holding circuit, rectification circuit, microprocessor, drive circuit and heater circuit; The output of power circuit connects the input of holding circuit; The output of holding circuit connects the input of rectification circuit, and the output of rectification circuit connects the input of microprocessor, and the output of microprocessor connects the input of drive circuit, and the output of drive circuit connects the input of heater circuit.Further comprise the timing circuit that is connected to output end of microprocessor.
Operation principle of the present utility model is as follows: be provided with holding circuit between power circuit and the heater, can better protect the security of equipment and the person; Enter microprocessor by rectification circuit to the rectification of voltage is laggard; Microprocessor will drive signal and be delivered to drive circuit, drive heater circuit by drive circuit, i.e. magnetron work, and micro-wave oven is provided with timing circuit, makes things convenient for the user to carry out timing heated.The utility model is provided with testing circuit, and voltage, electric current and the temperature of micro-wave oven detected and in time feed back to micro-wave oven, and is so that the utility model is simple to operation, safe and reliable.
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 microwave-oven-heating device comprises power circuit, it is characterized in that: further comprise successively interconnective holding circuit, rectification circuit, microprocessor, drive circuit and heater circuit; The output of power circuit connects the input of holding circuit; The output of holding circuit connects the input of rectification circuit, and the output of rectification circuit connects the input of microprocessor, and the output of microprocessor connects the input of drive circuit, and the output of drive circuit connects the input of heater circuit; Further comprise the timing circuit that is connected to output end of microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228828 CN202747426U (en) | 2012-05-21 | 2012-05-21 | Heating device of microwave oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220228828 CN202747426U (en) | 2012-05-21 | 2012-05-21 | Heating device of microwave oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747426U true CN202747426U (en) | 2013-02-20 |
Family
ID=47706816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220228828 Expired - Fee Related CN202747426U (en) | 2012-05-21 | 2012-05-21 | Heating device of microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747426U (en) |
-
2012
- 2012-05-21 CN CN 201220228828 patent/CN202747426U/en not_active Expired - Fee Related
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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: 20130220 Termination date: 20130521 |