CN203324877U - Power regulating circuit and electric pressure cooker - Google Patents
Power regulating circuit and electric pressure cooker Download PDFInfo
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- CN203324877U CN203324877U CN2013203650407U CN201320365040U CN203324877U CN 203324877 U CN203324877 U CN 203324877U CN 2013203650407 U CN2013203650407 U CN 2013203650407U CN 201320365040 U CN201320365040 U CN 201320365040U CN 203324877 U CN203324877 U CN 203324877U
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- chip microcomputer
- driving circuit
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- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000003750 conditioning effect Effects 0.000 claims description 25
- 238000010411 cooking Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
The utility model provides a power regulating circuit and an electric pressure cooker, which comprises a power supply module, a zero-crossing signal circuit, a singlechip, a power driving circuit, a working resistor, a human-computer interface module and a detection unit; the power supply module is respectively and electrically connected with the zero-crossing signal circuit and the singlechip; the zero-crossing signal circuit is electrically connected with the singlechip; the human-computer interface module is electrically connected with the singlechip; the singlechip is electrically connected with the power driving circuit; the power driving circuit comprises a bidirectional thyristor Q2; the working resistor is electrically connected with an external power supply to work; the power driving circuit is electrically connected with the working resistor. After the structure is adopted, the utility model has the advantages of as follows: stepless power regulation is realized, no harmonic wave is generated, the circuit is stable, safe and reliable, the cost is low, and the operation is simple.
Description
Technical field
The utility model relates to field of household appliances, particularly a kind of power conditioning circuitry and electric pressure cooking saucepan.
Background technology
Along with improving constantly of people's living standard, the application of electric pressure cooking saucepan in people's life is also more and more extensive.
The firepower of electric pressure cooking saucepan is mainly the electric heat-generating disc composition at present, and electric heat-generating disc, by the Control break-make, is also or heating with full power, the zero energy heating, cause inside to be heated inhomogeneous, and thermal inertia is large, internal temperature and pressure surge are large, just as fixed frequency air conditioner.For slow fire boiling class, be difficult to realize.
The utility model content
The purpose of this utility model is to provide and a kind ofly realizes that step-less adjustment power, power are steady, and does not produce power conditioning circuitry and the electric pressure cooking saucepan of harmonic wave.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of power conditioning circuitry, comprise zero-crossing signal circuit, single-chip microcomputer, power driving circuit, operating resistance and detecting unit;
Described zero-crossing signal circuit is electrically connected to described single-chip microcomputer, for to described single-chip microcomputer, transmitting zero cross signal;
Described single-chip microcomputer and described power driving circuit are electrically connected to;
Described detecting unit and described single-chip microcomputer are electrically connected to, and for detection of the zero cross signal number, and send and control signal to described power driving circuit;
Described power driving circuit comprises bidirectional triode thyristor Q2;
Described power driving circuit and described operating resistance are electrically connected to, and the control signal sent for the described single-chip microcomputer by receiving is controlled the switching value of the bidirectional triode thyristor Q2 of described power driving circuit, thereby controls the power of described operating resistance.
More preferably, this power conditioning circuitry also comprises power module, is used to described power conditioning circuitry power supply;
Described power module comprises isolating transformer T1, for to the external power step-down, and is isolated with internal circuit, and input end connects described external power, the output terminal power supply.
More preferably, described power module also comprises rectification circuit;
Described rectification circuit is connected on the output terminal of described isolating transformer T1, for the electric current to described isolating transformer T1 output, carries out rectification.
More preferably, described power driving circuit also comprises optocoupler U2;
Described optocoupler U2 and described bidirectional triode thyristor Q2 connect, and control the switching value of described bidirectional triode thyristor Q2 for the control signal sent according to described single-chip microcomputer.
More preferably, this power conditioning circuitry also comprises pull-up resistor R6;
Described pull-up resistor R6 is connected between described power driving circuit and described single-chip microcomputer, for described power driving circuit is protected.
More preferably, this power conditioning circuitry also comprises power detecting unit;
Described power detecting unit is electrically connected to described single-chip microcomputer, for external input voltage is detected, and adjusts the setting value of zero cross signal number according to testing result, thereby controls the power of described operating resistance.
More preferably, this power conditioning circuitry also comprises human-computer interface module;
Described human-computer interface module and described single-chip microcomputer are electrically connected to, for carry out the setting of zero cross signal number to described single-chip microcomputer.
More preferably, described operating resistance is the power heater members.
A kind of electric pressure cooking saucepan, comprise the described power conditioning circuitry of above-mentioned any one.
The beneficial effects of the utility model are:
After adopting said structure, make and the utlity model has following advantage: realize step-less adjustment power, do not produce harmonic wave, circuit is stable, safe and reliable, with low cost, simple to operate.
The accompanying drawing explanation
Fig. 1 is power conditioning circuitry structural representation of the present utility model;
Fig. 2 is power conditioning circuitry one embodiment circuit diagram of the present utility model;
Wherein: 1 power module; 2 single-chip microcomputers; 3 human-computer interface module; 4 detecting units; 5 power detecting unit; 6 zero-crossing signal circuits; 7 power driving circuits; 8 operating resistances.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, power conditioning circuitry of the present utility model and electric pressure cooking saucepan are further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, 2, a kind of power conditioning circuitry, comprise power module 1, zero-crossing signal circuit 6, single-chip microcomputer 2, power driving circuit 7, operating resistance 8, human-computer interface module 3 and detecting unit 4;
External power is electrically connected to power module 1, is used to power module 1 power supply;
Zero-crossing signal circuit 6 is electrically connected to single-chip microcomputer 2, for to single-chip microcomputer 2, transmitting zero cross signal;
Human-computer interface module 3 and single-chip microcomputer 2 are electrically connected to, for to single-chip microcomputer 2, carrying out the setting of zero cross signal number;
Single-chip microcomputer 2 and power driving circuit 7 are electrically connected to;
Detecting unit 4 and single-chip microcomputer 2 is electrically connected to, and for detection of the zero cross signal number, and sends and controls signal to power driving circuit 7;
Power driving circuit 7 comprises bidirectional triode thyristor Q2;
Operating resistance 8 is connected with described external power and carries out work by described external power power supply; Operating resistance 8 is the power heater members.
Power driving circuit 7 and operating resistance 8 are electrically connected to, and the control signal sent for the single-chip microcomputer 2 by receiving is controlled the switching value of bidirectional triode thyristor Q2, thereby control the power of operating resistance 8.
Working method is: the zero cross signal that at first external power source 50Hz frequency is formed to 100Hz, getting 10 zero cross signals is one-period, each zero cross signal just represents 1/10th power so, such as the power of operating resistance 8 is 1000W, each cycle is opened the power of a zero cross signal, and the power of now making resistance 8 is 100W.
This working method, can utilize controllable silicon to reach fast the Sparkless switch technology, efficiently controls operating resistance 8 and work in different capacity, and power is steady and easy to adjust, and do not produce harmonic wave.
More preferably, as a kind of embodiment of the present utility model, power module 1 comprises isolating transformer T1, for the external power step-down, and is isolated with internal circuit.Can play a protective role to electric elements
More preferably, as another kind of embodiment of the present utility model, power module 1 also comprises rectification circuit;
Rectification circuit is connected on the output terminal of isolating transformer T1, for the electric current to isolating transformer T1 output, carries out rectification.
The course of work is: convert external power source 50Hz frequency to the 100Hz Rectified alternating current by full-wave rectification, then pass through zero-crossing signal circuit, form the zero cross signal of 100Hz.
More preferably, as another kind of embodiment of the present utility model, power driving circuit 7 also comprises optocoupler U2;
Optocoupler U2 and bidirectional triode thyristor Q2 series connection, state for reception the control signal that single-chip microcomputer 2 sends, and control the switching value of bidirectional triode thyristor Q2.
More preferably, as another kind of embodiment of the present utility model, also comprise pull-up resistor R6;
Pull-up resistor R6 is connected between power driving circuit 7 and single-chip microcomputer 2, for power driving circuit 7 is protected.
More preferably, as another kind of embodiment of the present utility model, also comprise power detecting unit 5;
But the detection of this frame mode root office to external voltage, the power of judgement operating resistance 8, automatically adjust to the power of operating resistance 8.
A kind of electric pressure cooking saucepan, comprise the power conditioning circuitry of above any one technical characterictic.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (9)
1. a power conditioning circuitry is characterized in that:
Comprise zero-crossing signal circuit, single-chip microcomputer, power driving circuit, operating resistance and detecting unit;
Described zero-crossing signal circuit is electrically connected to described single-chip microcomputer, for to described single-chip microcomputer, transmitting zero cross signal;
Described single-chip microcomputer and described power driving circuit are electrically connected to;
Described detecting unit and described single-chip microcomputer are electrically connected to, and for detection of the zero cross signal number, and send and control signal to described power driving circuit;
Described power driving circuit comprises bidirectional triode thyristor Q2;
Described power driving circuit and described operating resistance are electrically connected to, and the control signal sent for the described single-chip microcomputer by receiving is controlled the switching value of the bidirectional triode thyristor Q2 of described power driving circuit, thereby controls the power of described operating resistance.
2. power conditioning circuitry according to claim 1 is characterized in that:
Also comprise power module, be used to described power conditioning circuitry power supply;
Described power module comprises isolating transformer T1, for to the external power step-down, and is isolated with internal circuit, and input end connects described external power, the output terminal power supply.
3. power conditioning circuitry according to claim 2 is characterized in that:
Described power module also comprises rectification circuit;
Described rectification circuit is connected on the output terminal of described isolating transformer T1, for the electric current to described isolating transformer T1 output, carries out rectification.
4. power conditioning circuitry according to claim 3 is characterized in that:
Described power driving circuit also comprises optocoupler U2;
Described optocoupler U2 and described bidirectional triode thyristor Q2 connect, and control the switching value of described bidirectional triode thyristor Q2 for the control signal sent according to described single-chip microcomputer.
5. according to the described power conditioning circuitry of claim 1 to 4 any one, it is characterized in that:
Also comprise pull-up resistor R6;
Described pull-up resistor R6 is connected between described power driving circuit and described single-chip microcomputer, for described power driving circuit is protected.
6. 5 described power conditioning circuitries as requested is characterized in that:
Also comprise power detecting unit;
Described power detecting unit is electrically connected to described single-chip microcomputer, for external input voltage is detected, and adjusts the setting value of zero cross signal number according to testing result, thereby controls the power of described operating resistance.
7. 6 described power conditioning circuitries as requested is characterized in that:
Also comprise human-computer interface module;
Described human-computer interface module and described single-chip microcomputer are electrically connected to, for carry out the setting of zero cross signal number to described single-chip microcomputer.
8. 1 described power conditioning circuitry as requested is characterized in that:
Described operating resistance is the power heater members.
9. an electric pressure cooking saucepan is characterized in that:
Comprise the described power conditioning circuitry of claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203650407U CN203324877U (en) | 2013-06-24 | 2013-06-24 | Power regulating circuit and electric pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203650407U CN203324877U (en) | 2013-06-24 | 2013-06-24 | Power regulating circuit and electric pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324877U true CN203324877U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203650407U Expired - Lifetime CN203324877U (en) | 2013-06-24 | 2013-06-24 | Power regulating circuit and electric pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238610A (en) * | 2013-06-24 | 2014-12-24 | 珠海格力电器股份有限公司 | Power regulating circuit and electric pressure cooker |
-
2013
- 2013-06-24 CN CN2013203650407U patent/CN203324877U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104238610A (en) * | 2013-06-24 | 2014-12-24 | 珠海格力电器股份有限公司 | Power regulating circuit and electric pressure cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |