CN101499356B - Position feedback type DC driving method and apparatus - Google Patents
Position feedback type DC driving method and apparatus Download PDFInfo
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- CN101499356B CN101499356B CN 200810051369 CN200810051369A CN101499356B CN 101499356 B CN101499356 B CN 101499356B CN 200810051369 CN200810051369 CN 200810051369 CN 200810051369 A CN200810051369 A CN 200810051369A CN 101499356 B CN101499356 B CN 101499356B
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Abstract
The invention discloses a position feedback type DC (direct current) electromagnetic driving method; the method comprises: in the existing electromagnetic driving device, an armature position detection circuit is arranged so as to control the working state of the driving coil of the electromagnetic driving device by detecting the change of a magnetic field in the electromagnetic driving device; when the electromagnetic driving device is electrified, the driving coil works and then drives the armature to be closed for generating a magnetic field; after the magnetic field is detected by the detection circuit, the power supply way of the driving coil is changed into pulse power supply, so the traditional DC power supply way is changed and the energy saving effect is achieved; when the armature detaches in an abnormal way, the detection circuit can detect the change of the magnetic field of the armature part, and switch the pulse power supply way into a conventional power supply way, then the armature is closed, and later changes happen again in the magnetic field; and after change of the magnetic field is detected by the detection circuit, the power supply of the driving coil is switched into pulse power supply again. The position feedback type DC electromagnetic driving method solves the problem that the work performance of the existing electromagnetic valve is influenced due to the fluctuation of automobile voltage.
Description
Technical field:
The power supply form that the present invention relates to electromagnetic product changes, and reaches energy-conservation purpose, has provided furtherly a kind of position feedback type DC driving method, and corresponding drive unit also is provided simultaneously, belongs to the Electromechanical Control technical field.
Background technology:
The direct solenoid element comprises DC electromagnetic valve, DC electromagnet, direct solenoid clutch, direct solenoid switch, direct current relay, D.C. contactor etc., and this class component generally comprises armature that solenoid, fixing iron grip, move etc.The course of work is: coil gets electric, and armature and iron are gripped generation magnetic field and attracted each other, and armature motion produces different separately functions.The characteristics that in this class component, all have " coil gets when electric; the armature distance Iron is gripped distant; need tractive effort large; coil needs electric current large; and distance be ' 0 ' after the adhesive; coil needs the electric current very little ", energy-saving and cost-reducing condition that provides of this class component just is provided for this, and traditional element is without any the processing of saving energy and reduce the cost.Some energy-saving electromagnetic products just changed its mechanical structure in the past, and suction reduces when making the electromagnetic product adhesive, reduces power consumption with this, but this is not best solution, and the energy consumption that reduces is also little.
Summary of the invention:
The invention discloses a kind of position feedback type DC driving method, by changing the power supply form of electromagnetic product, reach energy-conservation purpose.
The present invention also provides corresponding electromagnetic actuator device, has solved the large shortcoming of conventional Electromagnetic Drive switch energy consumption.
Technical solution of the present invention is as follows: in existing electromagnetic actuator device, be provided with an armature position testing circuit, by detecting changes of magnetic field in the electromagnetic actuator device, the drive coil operating state of control electromagnetic actuator device; When electromagnetic actuator device gets when electric, the adhesive of drive coil task driven armature produces magnetic field, and after testing circuit detected magnetic field, the supply power mode of conversion drive coil was pulse power supply, had changed traditional direct current supply mode, reached energy-saving effect; When the improper disengagement of armature, testing circuit detects the changes of magnetic field of armature part, and the pulse power supply mode is switched to conventional supply power mode, the armature adhesive, magnetic field changes again after the adhesive, and after testing circuit detected changes of magnetic field, the power supply of drive coil switched to pulse power supply again.
Position feedback type DC magnetic drive unit structure of the present invention is as follows:
Form solenoid valve body by line chart outer cover, spring, rubber blanket, valve body, armature, coil, it is characterized in that: ECU (Electrical Control Unit) is located between coil and the valve body, comprise power module, oscillation module, detection module and driving switch, connect the control end of driving switch after the output parallel connection of detection module, oscillation module, power module connects the oscillation module power end, and detecting element is positioned at the side of armature.Detecting element can be selected from unipolarity Hall isodynamic switch.
Behind the positive and negative two ends access of electromagnetic actuator device power supply, power module and detection module simultaneously electric, the detecting element of detection module detects does not have magnetic field to produce in the circuit, send at once signal and make the driving switch conducting, coil gets electric adhesive, the electromagnetic actuator device normal operation, waveform is the first half of Fig. 5; Power module get electric after, send a power supply signal to oscillation module, produce oscillating impulse, the pulse signal that makes driving switch obtain vibrating.
After the driving switch conducting, the coil adhesive produces magnetic field, after detection module detects, stops to the driving switch transmitted signal signal work that driving switch is sent according to oscillation module, the latter half of oscillogram such as Fig. 5.
When running into external force parts that coil attracts thrown off, detection module detects magnetic field disappearance in the circuit, at once driving switch is sent Continuity signal, make the long-time conducting of driving switch, again form Fig. 5 first half waveform, coil suction is increased, with the disengaged part adhesive, magnetic field strengthens after the adhesive, and detection module stops transmitted signal, the signal work that driving switch provides according to oscillator circuit again.
Characteristics of the present invention are: the inside of electromagnetically operated valve is provided with the armature position detecting element, by ECU (Electrical Control Unit) electromagnetically operated valve is carried out the full voltage power supply after the energising, after the electromagnetically operated valve adhesive, change into the pulse power supply mode, thereby greatly reduce the caloric value of electromagnetically operated valve, and further satisfied the requirement of automotive voltage fluctuation, the reliability of adhesive switches to the total head attracting state when guaranteeing the electromagnetically operated valve pulse power supply during the improper disengagement of this spool, and disengaging to the time that adhesive is close to from detection is 0.02 ~ 0.1S.
The present invention and the contrast of traditional electrical magnet valve
Good effect of the present invention is: be provided with an armature position testing circuit in the electromagnetic actuator device, control the electric current of its coil, getting when electric at coil is full voltage starting, electric current is maximum, and after the armature adhesive, switch to and keep voltage, electric current is very little, for keeping the reliability of adhesive, in case the improper disengagement of armature, the armature position testing circuit switches to the full voltage state immediately, thereby it is original below 10% that the power of direct solenoid element is dropped to, the consumption of coil copper descends about 50%, and greatly improved the useful life of coil, increased reliability, thereby provide new space for the development of this class component.
Description of drawings:
Fig. 1 is apparatus of the present invention initial state structure principle chart;
Fig. 2 is apparatus of the present invention working state structure schematic diagram;
Fig. 3 is apparatus of the present invention ECU (Electrical Control Unit) circuit theory diagrams;
Fig. 4: conventional electromagnetically operated valve oscillogram;
Fig. 5: be apparatus of the present invention electromagnetically operated valve oscillogram.
Embodiment
Embodiment 1:
According to Fig. 1, shown in 2, apparatus of the present invention are by line chart outer cover 1, spring 2, ECU (Electrical Control Unit) 3, rubber blanket 4, valve body 5, detecting element 6, armature 7, coil 8 forms, wherein, ECU (Electrical Control Unit) 3 is located between coil 8 and the valve body 5, ECU (Electrical Control Unit) 3 comprises power module, oscillation module, detection module and driving switch (referring to Fig. 3), detection module, connect the control end of driving switch (for triode V) after the output parallel connection of oscillation module, power module connects the oscillation module power end, and detecting element 6 is positioned at the side of armature 7 for unipolarity Hall switch (also can be selected from the Magnetic Induction switch element of other types).
After the electromagnetic actuator device energising, power module and detection module simultaneously electric, the detecting element 6 of detection module detects does not have magnetic field to produce in the circuit, send signal and make driving switch (triode V) conducting, coil L (being the coil 8 among Fig. 1) gets electric adhesive, the electromagnetic actuator device normal operation, waveform is the first half of Fig. 5, is equivalent to conventional electromagnetically operated valve oscillogram (seeing Fig. 4); Power module get electric after, send a power supply signal to oscillation module, produce oscillating impulse, the pulse signal that makes triode V obtain vibrating.
After driving switch triode V conducting, coil L adhesive produces magnetic field, after detection module detects, stops the transmitted signal to triode V, the signal work that triode V sends according to oscillation module, the latter half of oscillogram such as Fig. 5.
When running into external force parts that coil L attracts thrown off, detection module detects magnetic field disappearance in the circuit, at once V is sent Continuity signal, make the long-time conducting of V, again form the first half waveform of Fig. 5, L suction is increased, with the disengaged part adhesive, magnetic field strengthens after the adhesive, and detection module stops transmitted signal, the signal work that triode V provides according to oscillator circuit again.
Claims (3)
1. a position feedback type DC driving method in existing electromagnetic actuator device, is provided with an armature position testing circuit, by detecting changes of magnetic field in the electromagnetic actuator device, the drive coil operating state of control electromagnetic actuator device; When electromagnetic actuator device gets when electric, the adhesive of drive coil task driven armature produces magnetic field, and after testing circuit detected magnetic field, the supply power mode of conversion drive coil was pulse power supply, had changed traditional direct current supply mode, reached energy-saving effect; When the improper disengagement of armature, testing circuit detects the changes of magnetic field of armature part, and the pulse power supply mode is switched to conventional supply power mode, the armature adhesive, magnetic field changes again after the adhesive, and after testing circuit detected changes of magnetic field, the power supply of drive coil switched to pulse power supply again.
2. direct-current electromagnetic valve for position feedback-type vehicle, form solenoid valve body by coils overwraps, spring, rubber blanket, valve body, armature, coil, it is characterized in that: ECU (Electrical Control Unit) is located between coil and the valve body, comprise power module, oscillation module, detection module and driving switch, connect the control end of driving switch after the output parallel connection of detection module, oscillation module, power module connects the oscillation module power end, and the detecting element of detection module is positioned at the side of armature.
3. electromagnetically operated valve claimed in claim 2, it is characterized in that: detecting element is the Magnetic Induction switch element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810051369 CN101499356B (en) | 2008-10-31 | 2008-10-31 | Position feedback type DC driving method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810051369 CN101499356B (en) | 2008-10-31 | 2008-10-31 | Position feedback type DC driving method and apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN101499356A CN101499356A (en) | 2009-08-05 |
| CN101499356B true CN101499356B (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810051369 Active CN101499356B (en) | 2008-10-31 | 2008-10-31 | Position feedback type DC driving method and apparatus |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021087758A1 (en) * | 2019-11-05 | 2021-05-14 | 深圳市大疆创新科技有限公司 | Solenoid valve control method, agricultural unmanned aerial vehicle and solenoid valve control device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100193A (en) * | 1985-04-01 | 1987-01-31 | 郭行干 | Self-closing electromagnetic contactor |
| EP1255067A1 (en) * | 2001-05-03 | 2002-11-06 | Eaton Corporation | Electrically operated pressure control valve |
| CN201318499Y (en) * | 2008-10-31 | 2009-09-30 | 王国强 | Direct-current electromagnetic valve for position feedback-type vehicle |
-
2008
- 2008-10-31 CN CN 200810051369 patent/CN101499356B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100193A (en) * | 1985-04-01 | 1987-01-31 | 郭行干 | Self-closing electromagnetic contactor |
| EP1255067A1 (en) * | 2001-05-03 | 2002-11-06 | Eaton Corporation | Electrically operated pressure control valve |
| CN201318499Y (en) * | 2008-10-31 | 2009-09-30 | 王国强 | Direct-current electromagnetic valve for position feedback-type vehicle |
Non-Patent Citations (1)
| Title |
|---|
| JP平11-153247A 1999.06.08 |
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| CN101499356A (en) | 2009-08-05 |
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