CN201421763Y - Control circuit structure for minor-caliber electromagnetic valve - Google Patents
Control circuit structure for minor-caliber electromagnetic valve Download PDFInfo
- Publication number
- CN201421763Y CN201421763Y CN2009201358738U CN200920135873U CN201421763Y CN 201421763 Y CN201421763 Y CN 201421763Y CN 2009201358738 U CN2009201358738 U CN 2009201358738U CN 200920135873 U CN200920135873 U CN 200920135873U CN 201421763 Y CN201421763 Y CN 201421763Y
- Authority
- CN
- China
- Prior art keywords
- electromagnetically operated
- operated valve
- circuit structure
- electromagnetic valve
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a control circuit structure for a minor-caliber electromagnetic valve, which is higher in safety, more stable and is low in cost. The structure applies voltage doubling rectification principle into the closing of civil electromagnetic valve, utilizes current limiting resistor to enable the current in voltage doubling charging circuit to be very weak, and utilizes energystorage capacitor to store and collect voltage doubling electric energy. The scheme solves the safety hazards caused by disclosing of civil electromagnetic valve, is suitable for severe installationenvironment of electromagnetic valve, and has low manufacture cost.
Description
Technical field
The utility model relates to the control circuit technical field of electromagnetically operated valve, specifically is a kind of control circuit structure of small-bore electromagnetically operated valve.
Background technology
Along with growth in the living standard, people's security protection consciousness is more and more stronger, also makes fuel gas alarm producer generally grow up like rain the back spring bamboo, and people mostly select fuel gas alarm to report to the police to link simultaneously electromagnetically operated valve to turn-off source of the gas, this safer product.The prior art scheme: present product all adopts capacitor discharge and closes valve, supply power voltage is at 9-13V voltage, resistance R 300 by a 5-10K Europe, one 4007 or 4148 diode D110, electric capacity charging to a 470U-1000U/25V, once charge about 17 second time, drive cut-off by high level of several seconds of alarm equipment alarm MCU output again, with connecting the electric capacity two ends, electric capacity discharges to electromagnetically operated valve, thereby closes valve, but this technology is when existing and be not related to the problem of valve, promptly exist the hidden danger that is not related to valve, specific as follows:
When 1, the individual difference of electromagnetically operated valve causes and can not close valve, such as: magnetic contrast, problems such as the thickness of winding wire and the number of turns cause, and exist bigger hidden danger like this.
2, under the rugged environment, as: acid or alkali environment, oil smoke surroundings, temperature is on the low side and slight situation such as freeze causes just normal close valve of electromagnetically operated valve
3, install for convenience, the installation personnel that has will original 1.5 meters line solenoid valves lengthening, and the longest have 15-20 rice, after decaying, when causing and can not close valve.
What 4, use owing to electromagnetically operated valve is magnet along with the variation of time, environment decays, and in order to guarantee the useful life of 10-15, producer can increase the anti-decay of some magnetic, makes again just normal close valve of some valve.
The utility model content
For solving above-mentioned technological deficiency, it is higher more stable that the utility model aims to provide a kind of fail safe, the control circuit structure of small-bore electromagnetically operated valve with low cost.
The control circuit structure of a kind of small-bore electromagnetically operated valve of the present utility model, comprise the transformer unit that connects external power source, electromagnetically operated valve, the warning MCU that is connected in the external alert circuit drives relay unit, two outputs of described transformer respectively are connected in series a current-limiting resistance, described current-limiting resistance back is connected to the end that storage capacitor is connected in electromagnetically operated valve after respectively being connected in series a charging capacitor, three rectifier diodes respectively are serially connected with and play the electromotive force conducting between the corresponding electric capacity and constitute voltage doubling rectifing circuit by effect, and the other end of described storage capacitor drives the other end that relay unit is connected in electromagnetically operated valve by warning MCU.
Described transformer unit is input as 220V power supply output 8-10AC electric current.
Described current-limiting resistance (R100, R200) makes the electric current in the voltage-multiplying circuit reduce to the electric current that warning circuit is not exerted an influence.
The energy storage value of described storage capacitor (C23) is 470U/35V.
The technical program has solved the potential safety hazard that present civilian electromagnetically operated valve is not related to valve, adapts to the adverse circumstances that electromagnetically operated valve is installed, and is lengthened to more than 40 meters even if close the valve line, also can guarantee to close valve; It is little to close valve circuit supply stream, does not influence warning circuit, can not reduce because of the reduction of transformer output voltage; Cost is low, only increases the cost of about 2-3 mao, has just solved the problem of closing the valve difficulty; Because the finite capacity of electric capacity adds to spark, electromagnetic valve coil is not produced any influence.
Description of drawings
Fig. 1 is the control circuit structure chart of the small-bore electromagnetically operated valve of prior art.
Fig. 2 is a control circuit structure chart of the present utility model.
Fig. 3 is the voltage-multiplying circuit figure that the utility model adopted.
Embodiment
As described in Figure 1, the control circuit structure of small-bore electromagnetically operated valve of the prior art adopts capacitor discharge and closes valve, supply power voltage is at 9-13V voltage, resistance R 300 by a 5-10K Europe, one 4007 or 4148 diode D110, electric capacity charging to a 470U-1000U/25V, once charge about 17 second time, drive cut-off by high level of several seconds of alarm equipment alarm MCU output again, with connecting the electric capacity two ends, electric capacity discharges to electromagnetically operated valve, thereby closes valve, but when this technology exists and be not related to the problem of valve, promptly exist the hidden danger that is not related to valve.
Fig. 2 is a control circuit structure of the present utility model, comprises that transformer unit, the electromagnetically operated valve that connects external power source, the warning MCU that is connected in the external alert circuit drive relay unit.Two outputs of transformer respectively are connected in series a current-limiting resistance R100 and a R200, described current-limiting resistance back is connected to the end that storage capacitor C23 is connected in electromagnetically operated valve after respectively being connected in series a charging capacitor C20 and C21, three rectifier diode D11, D12 and D13 respectively are serially connected with and play the electromotive force conducting between the corresponding electric capacity and constitute voltage doubling rectifing circuit by effect, and the other end of described storage capacitor drives the other end that relay unit is connected in electromagnetically operated valve by warning MCU.
In this specific embodiment, described transformer unit is input as 220V power supply output 8-10AC electric current; The energy storage value of storage capacitor C23 is 470U/35V; Current-limiting resistance R100 and R200 make the electric current in the multiplication of voltage charging road very little, approximately have only several milliamperes, do not influence the power supply of this circuit fully.If current limliting does not have tens milliamperes electric current, alarm circuit is produced certain influence.
Circuit theory of the present utility model is: the 8-10AC that the transformer transformation goes out exchanges, electromotive force is E2, when E2 is upper half (on just down negative), D12 ends, and the D11 conducting is through R100, after the R200 current limliting, charge to C20, voltage on the C20 is charged to peak value 1.414E2 near E2, and remains unchanged, at the negative half period of E2, D11 ends, D12 conducting, the voltage on the C20 addition of connecting with E2, electric current charges to C21 by D12, charging voltage is: 2 times of E2 of 2 times of radical signs, energy storage 470U/35V capacitor C 23 is charged to it by D13, repeatedly after the charging, approximately charging is after 30 seconds, the voltage E3 of C22 also is: 2 times of E2 of 2 times of radical signs, owing in the side circuit load is arranged, E3 voltage should be: 2.4E2.When alarm equipment alarm, high level of several seconds of MCU output drives cut-off, and with connecting the electric capacity two ends, electric capacity discharges to electromagnetically operated valve, thereby closes valve.
Claims (3)
1, a kind of control circuit structure of small-bore electromagnetically operated valve, comprise the transformer unit that connects external power source, electromagnetically operated valve, the warning MCU that is connected in the external alert circuit drives relay unit, it is characterized in that, two outputs of described transformer respectively are connected in series a current-limiting resistance (R100, R200), described current-limiting resistance back respectively is connected in series a charging capacitor (C20, C21) be connected to storage capacitor (C23) after and be connected in an end of electromagnetically operated valve, three rectifier diode (D11, D12, D13) respectively be serially connected with and play the electromotive force conducting between the corresponding electric capacity and constitute voltage doubling rectifing circuit by effect, the other end of described storage capacitor drives the other end that relay unit is connected in electromagnetically operated valve by warning MCU.
2, circuit structure according to claim 1 is characterized in that, described transformer unit is input as 220V power supply output 8-10AC electric current.
3, circuit structure according to claim 2 is characterized in that, the energy storage value of described storage capacitor (C23) is 470U/35V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201358738U CN201421763Y (en) | 2009-03-26 | 2009-03-26 | Control circuit structure for minor-caliber electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201358738U CN201421763Y (en) | 2009-03-26 | 2009-03-26 | Control circuit structure for minor-caliber electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201421763Y true CN201421763Y (en) | 2010-03-10 |
Family
ID=41808425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201358738U Expired - Fee Related CN201421763Y (en) | 2009-03-26 | 2009-03-26 | Control circuit structure for minor-caliber electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201421763Y (en) |
Cited By (1)
| 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 |
-
2009
- 2009-03-26 CN CN2009201358738U patent/CN201421763Y/en not_active Expired - Fee Related
Cited By (1)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101764426B (en) | Protective device for on-line discharge capacity test of storage battery and testing method thereof | |
| CN201421763Y (en) | Control circuit structure for minor-caliber electromagnetic valve | |
| CN100508099C (en) | Portable analog circuit breaker | |
| CN201306755Y (en) | Pulse firing control device of single-coil electromagnetic valve used for gas cooker | |
| CN204044232U (en) | A kind of high voltage display device by monitoring leakage current of an arrester | |
| CN203036049U (en) | Intelligent control valve | |
| CN104319910A (en) | Power source energy taking circuit based on high-voltage power transmission line | |
| CN104123791A (en) | Prepayment electricity meter balance lower-limit alarm system | |
| CN201467828U (en) | Tropic spectacular fish culturing device with double-power supply and double-temperature control | |
| CN203839952U (en) | Low-voltage intelligent voltage regulator | |
| CN202094599U (en) | Leakage protector adapted to electromagnetic trip circuit | |
| CN201386850Y (en) | Control circuit structure of big caliber electromagnetic valve | |
| CN203747378U (en) | Transformer microcomputer protection system | |
| CN101828872A (en) | Drinking water machine leakage-proof control device | |
| CN202422315U (en) | Solar energy intelligent household door-window warner | |
| CN101692584B (en) | Double-power supply double-temperature control piscicultural device of tropical ornamental fish | |
| CN202084906U (en) | Superconducting coil quench detection output interface in fusion apparatus | |
| CN201047504Y (en) | Flashlight with electric generation by itself with acousto-optic alarming | |
| CN201621729U (en) | Electronic remote control ignition device | |
| CN206148923U (en) | SPD backup protection ware | |
| CN201927985U (en) | Remote wireless power off device | |
| CN202631696U (en) | Automatic alarm system for high-voltage electric field of high-voltage electrostatic dust removal energy-saving controller | |
| CN203813424U (en) | A power supply low voltage protection circuit | |
| CN2489547Y (en) | High voltage pulse electric net device | |
| CN203070864U (en) | Electricity-saving magnet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20160326 |