CN201229375Y - Solenoid valve closed current detector - Google Patents
Solenoid valve closed current detector Download PDFInfo
- Publication number
- CN201229375Y CN201229375Y CNU2008200420332U CN200820042033U CN201229375Y CN 201229375 Y CN201229375 Y CN 201229375Y CN U2008200420332 U CNU2008200420332 U CN U2008200420332U CN 200820042033 U CN200820042033 U CN 200820042033U CN 201229375 Y CN201229375 Y CN 201229375Y
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- CN
- China
- Prior art keywords
- chip microcomputer
- single chip
- magnetic valve
- vibration transducer
- valve
- 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
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Abstract
The utility model discloses a magnetic valve close current detecting instrument, which is provided with a vibration transducer which is used to detect the vibration of a magnetic valve, wherein signals of the vibration transducer are transmitted to a single chip microcomputer, an electric resistance which is connected with the magnetic valve in series is also provided, voltages on two ends of the electric resistance are transmitted to the single chip microcomputer, when the single chip microcomputer receives vibration signals of the vibration transducer, the single chip microcomputer outputs current values of the electric resistance, and the current values are magnetic valve close current values. A battery voltage detecting module is arranged on the single chip microcomputer, and when the battery voltage of the detecting instrument is lower than the voltage which is demanded by normal work, an indicator lamp of 'electric quantity deficiency' is lighted. Actions of the magnetic valve are transmitted to the single chip microcomputer through the vibration transducer in time, the single chip microcomputer locks the voltages on two ends of the electric resistance, then, the current values are calculated, and the current values are valve close current. Obviously, the magnetic valve close current detecting instrument has high precision, simple and convenient operations and reliable operation.
Description
Technical field
The utility model relates to a kind of valve-closing current detecting instrument for electromagnetic valve.
Background technology
Solenoid valve is widely used in Industry Control, wherein mainly is used as safety device in household electrical appliance, and the flame-out protection device of using in the gas kitchen ranges just belongs to this type of.New edition " household gas utensils " national standard requires all gas-cookers all must force to be provided with the auto extinguishing protective device.According to new national standard, when excessive liquid was put stove fire or stove fire out by water and gone out by wind, gas-cooker must cut off combustion gas automatically within 60 seconds.The core technology of gas-cooker concentrates on burning performance, security two aspects, and security is the core index of gas-cooker.The auto extinguishing protective device importance wherein have some idea of.The principle of work of gas-cooker solenoid valve is: when pressing down and during rotatable gas kitchen range switch, coal gas enters kitchen range top burning from admission line by solenoid valve and switches set.Combustion flame produces thermoelectrical potential to the thermopair heating, makes solenoid closure, and coal gas can normally pass through.When stove fire extinguished, thermocouple induction did not produce the electromotive force of keeping solenoid closure less than heat, so solenoid valve discharges, cut off the effect that source of the gas has played blowout protection.
At present do not have special valve-closing current detecting instrument for electromagnetic valve device on the market, and general method of testing precision is not high and relatively loaded down with trivial details.As drawing two lines from the direct-flow voltage regulation source two ends, a termination electromagnetic valve coil, another termination switch housing, fine-adjusting current is read test result until the solenoid valve adhesive from testing tool.From the precision of artificial as can be seen factor of this method of testing and equipment self the system testing result is had bigger influence, the resultant error of measuring is big and precision is low, simultaneously also more loaded down with trivial details.
Summary of the invention
In order to overcome above-mentioned defective, the utility model provides a kind of valve-closing current detecting instrument for electromagnetic valve, and this valve-closing current detecting instrument for electromagnetic valve precision is high and operation is also simple and convenient, reliable.
The utility model for the technical scheme that solves its technical matters and adopt is:
A kind of valve-closing current detecting instrument for electromagnetic valve, be provided with one and be used to detect the vibration transducer that solenoid valve vibrates, the signal of vibration transducer is transmitted in single-chip microcomputer, be provided with a resistance of connecting again with solenoid valve, the voltage transmission at resistance two ends is in single-chip microcomputer, when single-chip microcomputer received the vibration signal of vibration transducer, single-chip microcomputer was exported the current value of described resistance, and this current value is solenoid valve and closes the valve current value.
Further technical scheme of the present utility model is:
Single-chip microcomputer is provided with a battery voltage detection module, and when the cell voltage of detector was lower than the needed voltage of operate as normal, " electric weight deficiency " pilot lamp was lighted.
The beneficial effects of the utility model are: by vibration transducer the action of solenoid valve is in time passed to single-chip microcomputer, single-chip microcomputer in time locks the voltage at resistance two ends, calculates current value again, and this current value is and closes the valve electric current.Can find out that therefrom this routine precision is high and operation is also simple and convenient, reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment: a kind of valve-closing current detecting instrument for electromagnetic valve, be provided with one and be used to detect the vibration transducer 1 that solenoid valve vibrates, the signal of vibration transducer is transmitted in single-chip microcomputer 2, be provided with a resistance 4 of connecting again with solenoid valve 3, the voltage transmission at resistance two ends is in single-chip microcomputer, when single-chip microcomputer received the vibration signal of vibration transducer, single-chip microcomputer was exported the current value of described resistance, and this current value is solenoid valve and closes the valve current value.
Single-chip microcomputer is provided with a battery voltage detection module, and when the cell voltage of detector was lower than the needed voltage of operate as normal, " electric weight deficiency " pilot lamp was lighted.
This routine use is:
During test, depress valve shaft, at this moment the microswitch closure.Instrument provides electric current to electromagnetic valve coil, and the elastic force that the magnetic force that coil produces overcomes spring makes the valve closure.Unclamp valve shaft after three seconds, this moment, the instrument internal system can reduce by certain ratio slowly to the electric current that coil provides, when electric current is reduced to certain value, the magnetic force that coil produces just can not overcome the elastic force of spring, this moment, valve just discharged, the moment valve that discharges can produce certain vibration, and vibration transducer can be sensed this vibration immediately.Vibration transducer sends control signal simultaneously, the voltage of single-chip microcomputer circuit locking this moment, i.e. and the voltage at resistance two ends treatedly converts magnitude of voltage to electric current, again current value is delivered to display module value is shown.
Two kinds of test patterns are arranged, first kind: the result of test directly shows by liquid crystal display; Second kind: when test result showed, test value and selected value range can compare, if value in scope the time " by " pilot lamp is bright, if value not in scope the time " warning " pilot lamp bright.
In the time of start, the battery voltage detection module of detector is started working, and when the cell voltage of detector was lower than the needed voltage of operate as normal, " electric weight deficiency " pilot lamp was lighted.
Claims (2)
1. valve-closing current detecting instrument for electromagnetic valve, it is characterized in that: be provided with one and be used to detect the vibration transducer (1) that solenoid valve vibrates, the signal of vibration transducer is transmitted in single-chip microcomputer (2), be provided with a resistance (4) of connecting again with solenoid valve (3), the voltage transmission at resistance two ends is in single-chip microcomputer, when single-chip microcomputer received the vibration signal of vibration transducer, single-chip microcomputer was exported the current value of described resistance.
2. valve-closing current detecting instrument for electromagnetic valve according to claim 1 is characterized in that: single-chip microcomputer is provided with a battery voltage detection module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200420332U CN201229375Y (en) | 2008-07-23 | 2008-07-23 | Solenoid valve closed current detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200420332U CN201229375Y (en) | 2008-07-23 | 2008-07-23 | Solenoid valve closed current detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201229375Y true CN201229375Y (en) | 2009-04-29 |
Family
ID=40634319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200420332U Expired - Fee Related CN201229375Y (en) | 2008-07-23 | 2008-07-23 | Solenoid valve closed current detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201229375Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542937A (en) * | 2016-06-29 | 2018-01-05 | Ckd株式会社 | Control valve for fluids with sensor |
-
2008
- 2008-07-23 CN CNU2008200420332U patent/CN201229375Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542937A (en) * | 2016-06-29 | 2018-01-05 | Ckd株式会社 | Control valve for fluids with sensor |
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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 |
Granted publication date: 20090429 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |