CN2637853Y - Energy-saving electromagnetic valve control circuit - Google Patents
Energy-saving electromagnetic valve control circuit Download PDFInfo
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- CN2637853Y CN2637853Y CN 03274248 CN03274248U CN2637853Y CN 2637853 Y CN2637853 Y CN 2637853Y CN 03274248 CN03274248 CN 03274248 CN 03274248 U CN03274248 U CN 03274248U CN 2637853 Y CN2637853 Y CN 2637853Y
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- circuit
- collector electrode
- resistance
- electromagnetic valve
- control circuit
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Abstract
The utility model discloses a control circuit of an energy saving electromagnetic valve and is characterized in that: the utility model contains a singlechip (2) that can input temperature sensor signals, a power supply zero cross detection circuit (1) that is connected with the input terminal of the singlechip and an electromagnetic valve driving circuit (3) that is connected with the output terminal of the singlechip. The control circuit can accurately control the guide circuit direction of the electromagnetic valve and has stable performance, high reliability, simple structure and low cost.
Description
Technical field
The utility model relates to control circuit, specifically is meant a kind of control circuit of energy-saving electromagnetic valve.
Background technique
Along with improving constantly of people's living standard, household electric appliance more and more enter people's life, yet the consumption of the energy is also increasing, for saving the valuable energy, and people's continuous effort of trying every means.Bistable electromagnetic valve is as a kind of novel energy saving device, use more and more widely in the white domestic appliances field, controlling method that it is traditional and drive circuit more complicated, and the accurate control to bistable electromagnetic valve mainly realizes by software, this can increase the capacity of software and the capacity of storage undoubtedly, and the technical difficulty of increase equipment, so that improve the cost of equipment.
Technology contents
The utility model is exactly in order to solve air conditioner bistable electromagnetic valve control technique complexity in the prior art, and the technical problem that cost is high provides a kind of ball bearing made using of novel control bistable electromagnetic valve.
For addressing the above problem, the utility model provides following technological scheme:
A kind of control circuit of energy-saving electromagnetic valve is characterized in that, but comprises the single-chip microcomputer of input temp sensor signal, the power zero-crossing detection circuit that is connected with described single-chip microcomputer input end, the driving circuit for electromagnetic valve that is connected with described single-chip microcomputer output terminal.
Described power zero-crossing detection circuit contains the diode that negative electrode is connected with an alternating current transformer; First detection transistor, it has base stage, emitter, collector electrode, and its base stage is connected with the anode of described diode by two resistance, and its collector electrode is connected its grounded-emitter connection by a resistance with power supply; Second detection transistor, it has base stage, emitter, collector electrode, and base stage is connected with the collector electrode of first detection transistor, and its collector electrode is connected with described power supply by a resistance, this collector electrode is connected its grounded-emitter connection by the C end with an input end of described single board computer.
Described driving circuit for electromagnetic valve contains a photoelectric coupling circuit, and one input end is connected with power supply by a resistance, and its collector electrode is connected with ac power supply by a current-limiting resistance; Also has a two-way controllable silicon, the one main electrode is connected with described ac power supply, its control utmost point G utmost point is connected with the emitter of photo coupler, its another main electrode can be connected with controlled solenoid valve, goes back and connect an absorption circuit that is formed by a resistance and a capacitance series between bidirectional triode thyristor two main electrodes; Other has a triode, and it has base stage, collector electrode, emitter, and its collector electrode is connected with another input end of photo coupler, and its base stage is connected its grounded-emitter connection by a resistance with the output terminal of described single board computer.
Resistance value scope in the described absorption circuit can be several ohm to tens ohm.
Electric capacity span in the described absorption circuit can be 0.01 microfarad to 1.0 microfarad.
Monolithic function of the present utility model is sent the variation of signal according to temperature transducer, judgement is also sent pulse signal, power supply zero passage detection signal in conjunction with being collected by power zero-crossing detection circuit C end drives the working state that optocoupler and controllable silicon change solenoid valve jointly.This control circuit is the conducting direction of control electromagnetic valve accurately, and stable performance, reliability height, simple in structure, and is with low cost.
Description of drawings
Fig. 1 is the utility model control system block diagram;
Fig. 2 is power zero-crossing detection circuit figure among Fig. 1;
Fig. 3 is the oscillogram of the utility model power supply zero passage detection each point;
Fig. 4 is driving circuit for electromagnetic valve figure among Fig. 1.
Embodiment
Shown in Figure 1, be a preferred embodiment of the present utility model.A kind of control circuit of energy-conservation bistable electromagnetic valve 4, but comprise the single-chip microcomputer 2 of input temp sensor signal, the power zero-crossing detection circuit 1 that is connected with described single-chip microcomputer input end, the driving circuit for electromagnetic valve 3 that is connected with described single-chip microcomputer output terminal.This circuit is realized the supply voltage zero passage detection by hardware, and this signal is sent into SCM system, in conjunction with the common controlling and driving circuit of pulse signal that single-chip microcomputer is sent out, thereby substitutes the accurate control of traditional control circuit realization to solenoid valve.Bistable electromagnetic valve is to control the circulation status of refrigeration agent by being added in the positive and negative pulse of voltage on it.Output waveform by transformer is carried out zero passage detection to electrical network, promptly with double-triode circuit come identification of power from low to high zero passage still from high to low zero passage to catch rising edge/trailing edge, the single-chip microcomputer master chip is by after handling the temperature sensor signal parameter simultaneously, in conjunction with the zero passage detection waveform, judgement is also sent the required pulse signal of solenoid valve this moment, drives the working state that optocoupler and controllable silicon move gating solenoid valve this moment.
Described power zero-crossing detection circuit contains the diode V1 that negative electrode is connected with an alternating current transformer T; The first detection transistor V2, it has base stage, emitter, collector electrode, and its base stage is connected with the anode of described diode by two resistance, and its collector electrode is connected its grounded-emitter connection by a resistance with power Vcc; The second detection transistor V3, it has base stage, emitter, collector electrode, and base stage is connected with the collector electrode of first detection transistor, and its collector electrode is connected with described power Vcc by a resistance, this collector electrode is connected its grounded-emitter connection by the C end with an input end of described single board computer.The supply voltage zero cross detection circuit is a digital signal with the analog-signal transitions that the power supply zero passage changes, and sends into SCM system by the C end, as shown in Figure 2.Its zero passage detection principle is as follows: during the supply voltage positive going zeror crossing, diode V1 becomes conducting by ending, triode V2 conducting, and V3 ends, and C is a high level; During the reverse zero passage of supply voltage, diode V1 is become by conducting and ends, and triode V2 ends, the V3 conducting, and C is a low level, its respective waveforms is as shown in Figure 3.
Described driving circuit for electromagnetic valve contains a photoelectric coupling circuit E, and one input end is connected with power Vcc by a resistance, and its collector electrode is connected with ac power supply by a current-limiting resistance R3; Also has a two-way controllable silicon V2, its main electrode is connected with described ac power supply, its control utmost point G utmost point is connected with the emitter of photo coupler, its another main electrode can be connected with controlled solenoid valve, goes back between bidirectional triode thyristor two main electrodes and connect by a resistance R 4 to be connected in series an absorption circuit that forms with a capacitor C 1; Other has a triode V1, and it has base stage, collector electrode, emitter, and its collector electrode is connected with another input end of photo coupler, and its base stage is connected with the output terminal of described single board computer by a resistance, its grounded-emitter connection, as shown in Figure 4.In driving circuit for electromagnetic valve, because controllable silicon is directly received the strong power part of power supply, and optocoupler is by the SC sigmal control of control master chip, so reliability of paying special attention to design, R3 is the current-limiting circuit of optocoupler output, and its resistance allows the decision of repeated impacts current peak by ac grid voltage peak value and optocoupler output.R
4And C
1Be to absorb circuit, be attempted by between power controlled silicon two main electrodes, shield.Because perceptual composition is arranged in the load, can produce bigger counterelectromotive force during the controllable silicon switching, may cause that silicon controlled damages.General C
1Value is at 0.01 μ F～1.0 μ F, R
4Value at several Ω to tens Ω.
Single chip part receives the variation of temperature sensor signal, judges and sends pulse signal, and jointly drive working state that optocoupler and controllable silicon change solenoid valve in conjunction with the power supply zero passage detection signal that is collected by the C end this moment.This control circuit is the conducting direction of control electromagnetic valve accurately, and stable performance, reliability height.
Claims (5)
1, a kind of control circuit of energy-saving electromagnetic valve, it is characterized in that, but comprise the single-chip microcomputer (2) of input temp sensor signal, the power zero-crossing detection circuit (1) that is connected with described single-chip microcomputer input end, the driving circuit for electromagnetic valve (3) that is connected with described single-chip microcomputer output terminal.
2, control circuit as claimed in claim 1 is characterized in that, described power zero-crossing detection circuit contains the diode (V1) that negative electrode is connected with an alternating current transformer (T); First detection transistor (V2), it has base stage, emitter, collector electrode, and its base stage is connected with the anode of described diode by two resistance, and its collector electrode is connected its grounded-emitter connection by a resistance with power supply (Vcc); Second detection transistor (V3), it has base stage, emitter, collector electrode, and base stage is connected with the collector electrode of first detection transistor, and its collector electrode is connected with described power supply (Vcc) by a resistance, this collector electrode is connected its grounded-emitter connection by the C end with an input end of described single board computer.
3, control circuit as claimed in claim 2, it is characterized in that, described driving circuit for electromagnetic valve contains a photoelectric coupling circuit (E), and one input end is connected with power supply (Vcc) by a resistance, and its collector electrode is connected with ac power supply by a current-limiting resistance (R3); Also has a two-way controllable silicon (V2), its main electrode is connected with described ac power supply, its control utmost point G utmost point is connected with the emission collection of described photo coupler, its another main electrode can be connected with controlled solenoid valve, goes back and connect by a resistance (R4) between bidirectional triode thyristor two main electrodes to be connected in series the absorption circuit that forms with an electric capacity (C1); Other has a triode (V1), and it has base stage, collector electrode, emitter, and its collector electrode is connected with another input end of photo coupler, and its base stage is connected its grounded-emitter connection by a resistance with the output terminal of described single board computer.
4, control circuit as claimed in claim 3 is characterized in that, the resistance value scope in the described absorption circuit is several ohm to tens ohm.
5, control circuit as claimed in claim 4 is characterized in that, the electric capacity span in the described absorption circuit is 0.01 microfarad to 1.0 microfarad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03274248 CN2637853Y (en) | 2003-09-05 | 2003-09-05 | Energy-saving electromagnetic valve control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03274248 CN2637853Y (en) | 2003-09-05 | 2003-09-05 | Energy-saving electromagnetic valve control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2637853Y true CN2637853Y (en) | 2004-09-01 |
Family
ID=34301878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03274248 Expired - Fee Related CN2637853Y (en) | 2003-09-05 | 2003-09-05 | Energy-saving electromagnetic valve control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2637853Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494175A (en) * | 2011-12-20 | 2012-06-13 | 合肥美的荣事达电冰箱有限公司 | Driving circuit of solenoid valve |
| CN106343883A (en) * | 2016-10-13 | 2017-01-25 | 华侨大学 | Electric tea making device |
| CN107678384A (en) * | 2017-09-27 | 2018-02-09 | 广西科技大学鹿山学院 | A kind of public lavatory intelligence control system |
-
2003
- 2003-09-05 CN CN 03274248 patent/CN2637853Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494175A (en) * | 2011-12-20 | 2012-06-13 | 合肥美的荣事达电冰箱有限公司 | Driving circuit of solenoid valve |
| CN106343883A (en) * | 2016-10-13 | 2017-01-25 | 华侨大学 | Electric tea making device |
| CN107678384A (en) * | 2017-09-27 | 2018-02-09 | 广西科技大学鹿山学院 | A kind of public lavatory intelligence control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |