CN106122565B - High-speed electromagnetic valve driver circuit - Google Patents
High-speed electromagnetic valve driver circuit Download PDFInfo
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- CN106122565B CN106122565B CN201610771777.7A CN201610771777A CN106122565B CN 106122565 B CN106122565 B CN 106122565B CN 201610771777 A CN201610771777 A CN 201610771777A CN 106122565 B CN106122565 B CN 106122565B
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- Prior art keywords
- electromagnetic valve
- speed electromagnetic
- valve
- driving voltage
- speed
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
Abstract
The present invention relates to a kind of high-speed electromagnetic valve driver circuits, belong to field of circuit technology.Utilize the high-speed electromagnetic valve driver circuit of the present invention, in the valve opening stage, driving voltage VH first exports a high level, then export pwm pulse level, to in the case where ensureing solenoid valve on-off action, it avoids generating heat, reduce energy loss, improve high-speed electromagnetic valve service life, and then it is exported in the valve closing stage to keep the reference voltage of high-speed electromagnetic valve reference current using driving voltage VL, to meet the requirement of solenoid valve high speed opening and closing, it improves solenoid valve and is opened and closed frequency, and the high-speed electromagnetic valve driver circuit of the present invention, its is simple in structure, it is of low cost, application range is also quite extensive.
Description
Technical field
The present invention relates to field of circuit technology, more particularly to electromagnetic valve circuit technical field, in particular to a kind of high speed electricity
Electromagnetic valve driving circuit.
Background technology
Solenoid valve is more and more wider in industrial circle application, especially high-speed electromagnetic valve.Due to not conforming to for driving circuit design
Rationality, the requirement of high speed is not achieved in many places in current electromagnetic valve, in addition, also resulting in excessive energy loss and solenoid valve
The reduction in service life.
In solenoid valve application at this stage, driving circuit mainly uses univoltage to drive, and circuit structure is as shown in Figure 1.It should
There are two types of disadvantages for mode：First, as shown in Fig. 2, driving current rises and driving current release time is long, solenoid valve is caused to be opened
Frequency decline is closed, high-speed demand is not achieved；Second, it is driven using high voltage V1, in the early period that voltage will be saturated, with voltage
Rise, the electric current rate of climb is decreased obviously, and causes to generate amount of heat, to cause energy loss and the solenoid valve lost of life.
Therefore, how a kind of requirement that can either meet solenoid valve high speed and be opened and closed is provided, while energy damage can be reduced again
It loses, improving the driving circuit of high-speed electromagnetic valve service life becomes this field urgent problem to be solved.
Invention content
The purpose of the present invention is overcome it is above-mentioned in the prior art the shortcomings that, a kind of circuit design by optimization is provided,
The requirement that solenoid valve high speed opening and closing can either be met improves solenoid valve and is opened and closed frequency, while can reduce energy loss again, improves
High-speed electromagnetic valve service life, and simple in structure, of low cost, the high-speed electromagnetic valve driver circuit having wide range of applications.
In order to achieve the above purpose, high-speed electromagnetic valve driver circuit of the invention has following constitute：
The high-speed electromagnetic valve driver circuit includes first be connected between high-speed electromagnetic valve driving end and driving voltage VH
High location switch, first high location switch drive to control the high-speed electromagnetic valve between end and the driving voltage VH
Conducting and disconnection, further include being connected to the high-speed electromagnetic valve gated end and selecting the first gating switch between valve pulse, described
The first gating switch selectively controlling the conducting and disconnection of the high-speed electromagnetic valve.
In the high-speed electromagnetic valve driver circuit, the high-speed electromagnetic valve works in valve opening stage, holding stage and valve closing
Stage；When the high-speed electromagnetic valve works in the valve opening stage, the driving voltage VH first exports a high level, then defeated
Go out pwm pulse level, described selects valve pulse to export a high level；When the high-speed electromagnetic valve works in the holding stage,
The driving voltage VH exports pwm pulse level, and described selects valve pulse to export a high level；When the high speed electromagnetic
Valve works in the valve closing stage, the driving voltage VH and described valve pulse is selected to export low level.
In the high-speed electromagnetic valve driver circuit, including be connected between high-speed electromagnetic valve driving end and driving voltage VL the
Two high location switch, second high location switch drive to control the high-speed electromagnetic valve between end and the driving voltage VL
Conducting and disconnection.
In the high-speed electromagnetic valve driver circuit, when the high-speed electromagnetic valve works in the valve opening stage, holding rank
Section and valve closing stage, the driving voltage VL export to keep the reference voltage of the high-speed electromagnetic valve reference current.
It is described when the high-speed electromagnetic valve is in off working state for a long time in the high-speed electromagnetic valve driver circuit
Driving voltage VL not output voltages.
The high-speed electromagnetic valve driver circuit includes multiple high-speed electromagnetic valves, and first high location switch is connected to
Between each high-speed electromagnetic valve driving end and the driving voltage VH, each high-speed electromagnetic valve gated end is led to respectively
It crosses and selects valve pulse described in corresponding gating switch connection.
The high-speed electromagnetic valve driver circuit for using the invention, in the valve opening stage, driving voltage VH first exports one high electricity
It is flat, pwm pulse level is then exported, in the case where ensureing solenoid valve on-off action, avoid generating heat, reduces energy damage
It loses, improves high-speed electromagnetic valve service life, and then exported in the valve closing stage to keep high-speed electromagnetic valve using driving voltage VL
The reference voltage of reference current, to meet the requirement of solenoid valve high speed opening and closing, raising solenoid valve opening and closing frequency, and the present invention
High-speed electromagnetic valve driver circuit, simple in structure, of low cost, application range is also quite extensive.
Description of the drawings
Fig. 1 is the electrical block diagram of high-speed electromagnetic valve driver circuit in the prior art.
Fig. 2 is the driving voltage waveform diagram of high-speed electromagnetic valve driver circuit in the prior art.
Fig. 3 is the electrical block diagram of the high-speed electromagnetic valve driver circuit of the present invention.
Fig. 4 is the driving voltage waveform diagram of the high-speed electromagnetic valve driver circuit of the present invention.
Specific implementation mode
In order to be more clearly understood that the technology contents of the present invention, spy are lifted following embodiment and are described in detail.
Refering to Figure 1, the electrical block diagram of the high-speed electromagnetic valve driver circuit for the present invention.
In one embodiment, high-speed electromagnetic valve driver circuit, as shown in figure 3, including being connected to high-speed electromagnetic valve
The first high location switch between end and driving voltage VH, first high location switch is driven to be driven to control the high-speed electromagnetic valve
Conducting and disconnection between moved end and the driving voltage VH further include being connected to the high-speed electromagnetic valve gated end and selecting valve
The first gating switch between pulse, first gating switch is selectively controlling leading for the high-speed electromagnetic valve
On and off is opened.As shown in figure 4, the high-speed electromagnetic valve works in valve opening stage, holding stage and valve closing stage；When described
High-speed electromagnetic valve works in the valve opening stage, and the driving voltage VH first exports a high level, then exports pwm pulse electricity
Flat, described selects valve pulse to export a high level；When the high-speed electromagnetic valve works in holding stage, driving electricity
VH is pressed to export pwm pulse level, described selects valve pulse to export a high level；When the high-speed electromagnetic valve works in valve closing
In the stage, the driving voltage VH and described valve pulse is selected to export low level.
In a preferred embodiment, it including is connected to second high between high-speed electromagnetic valve driving end and driving voltage VL
Bit switch, second high location switch drive leading between end and the driving voltage VL to control the high-speed electromagnetic valve
On and off is opened.When the high-speed electromagnetic valve works in valve opening stage, holding stage and the valve closing stage, the driving
Voltage VL exports to keep the reference voltage of the high-speed electromagnetic valve reference current.And when the high-speed electromagnetic valve long-time
In off working state, the driving voltage VL not output voltages.
In preferred embodiment, as shown in figure 3, the high-speed electromagnetic valve driver circuit includes multiple high speeds
Solenoid valve, first high location switch be connected to each the high-speed electromagnetic valve driving end and the driving voltage VH it
Between, each high-speed electromagnetic valve gated end described in the connection of corresponding gating switch respectively by selecting valve pulse.
High-speed electromagnetic valve work need to be generated driving current I by driving voltage and maintain electric current i according to the different stages.
Driving current I：Solenoid valve overcomes contained spring acting to open solenoid valve, when beginning drive magnetic valve extension spring
When, required strength is bigger, and this design scheme is so that solenoid valve is opened as early as possible using high current, to improve valve opening rate.
But the study found that after driving voltage reaches a certain level, the rising of electric current can become very slowly, this has resulted in needing
Want prodigious driving power that could generate high current, during this, extra energy will produce prodigious heat, cause efficiency
Reduce the shortening with the solenoid valve service life.
Maintain electric current i：After solenoid valve is opened, it is only necessary to maintain the spring in tensional state, required strength is slightly smaller.
The invention is intended to be driven using twin voltage, not only improve solenoid valve and be opened and closed frequency, also reduce energy consumption, prolong
The service life of solenoid valve is grown.
In practical applications, high-speed electromagnetic valve driver circuit of the invention is generally made that following two to the prior art
It improves at place.
Improvement 1,
Valve opening stage, driving voltage VH are changed to a high level (T1 stages) and continuous several PWM waves (T2 stages).
In the T1 stages, electric current can rapidly be increased with the raising of VH, and when reaching T2, the driving current rate of climb can become very slowly, such as
VH continues that high voltage, electric current is kept to rise very little fruit at this time, and extra ability is used for generating heat, and efficiency is caused to reduce and the solenoid valve longevity
Life loss (it can be found that original driving current understands I more greatly than improved driving current I1 from oscillogram, but electromagnetism
The main energetic loss of valve is just happened at electric current from during I1 is raised to I, and the present invention has avoided the stage).And it drives at this time
The strength of electromagnet can overcome the spring inside solenoid valve to do work, and solenoid valve is opened.So, it is only necessary to several pwm pulses,
Driving current is kept, solenoid valve can be opened, improves efficiency, reduces heat release.
Improvement 2,
It is driven using twin voltage, increases a driving voltage VL.The effect of VL is (T4 ranks after solenoid valve is closed
Section), it continues as solenoid valve and one reference current is provided, when next solenoid valve opening signal that temporarily, drive can be improved rapidly
Streaming current achievees the purpose that high speed is opened and closed (since the VL reference currents provided compare to more quickly open solenoid valve
Small, energy loss and damage to solenoid valve are very low).When there is no valve opening signal for a long time, VL is closed, to reach raising energy
The effect of effect and protection solenoid valve.
The high-speed electromagnetic valve driver circuit for using the invention, in the valve opening stage, driving voltage VH first exports one high electricity
It is flat, pwm pulse level is then exported, in the case where ensureing solenoid valve on-off action, avoid generating heat, reduces energy damage
It loses, improves high-speed electromagnetic valve service life, and then exported in the valve closing stage to keep high-speed electromagnetic valve using driving voltage VL
The reference voltage of reference current, to meet the requirement of solenoid valve high speed opening and closing, raising solenoid valve opening and closing frequency, and the present invention
High-speed electromagnetic valve driver circuit, simple in structure, of low cost, application range is also quite extensive.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that can still make
Various modifications and alterations are without departing from the spirit and scope of the invention.Therefore, the description and the appended drawings should be considered as illustrative
And not restrictive.
Claims (3)
1. a kind of high-speed electromagnetic valve driver circuit, which is characterized in that including being connected to high-speed electromagnetic valve driving end and driving voltage
The first high location switch between VH, first high location switch drive end and the driving to control the high-speed electromagnetic valve
Conducting between voltage VH and disconnection further include being connected to the high-speed electromagnetic valve gated end and selecting first between valve pulse to select
Pass is opened up, first gating switch is described selectively to control the conducting and disconnection of the high-speed electromagnetic valve
High-speed electromagnetic valve works in valve opening stage, holding stage and valve closing stage；When the high-speed electromagnetic valve works in the valve opening stage,
The driving voltage VH first exports a high level, then exports pwm pulse level, and described selects valve pulse to export a height
Level；When the high-speed electromagnetic valve works in the holding stage, the driving voltage VH exports pwm pulse level, described
Valve pulse is selected to export a high level；When the high-speed electromagnetic valve works in valve closing stage, the driving voltage VH and institute
That states selects valve pulse to export low level, including second be connected between high-speed electromagnetic valve driving end and driving voltage VL is high-order
Switch, second high location switch is controlling the conducting between the high-speed electromagnetic valve driving end and the driving voltage VL
And disconnection, when the high-speed electromagnetic valve works in valve opening stage, holding stage and the valve closing stage, driving electricity
Pressure VL exports to keep the reference voltage of the high-speed electromagnetic valve reference current.
2. high-speed electromagnetic valve driver circuit according to claim 1, which is characterized in that when the high-speed electromagnetic valve is long
Between be in off working state, the driving voltage VL not output voltages.
3. high-speed electromagnetic valve driver circuit according to claim 1, which is characterized in that including multiple high speed electromagnetics
Valve, first high location switch are connected between each high-speed electromagnetic valve driving end and the driving voltage VH, respectively
The high-speed electromagnetic valve gated end described in the connection of corresponding gating switch respectively by selecting valve pulse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771777.7A CN106122565B (en) | 2016-08-30 | 2016-08-30 | High-speed electromagnetic valve driver circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610771777.7A CN106122565B (en) | 2016-08-30 | 2016-08-30 | High-speed electromagnetic valve driver circuit |
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| Publication Number | Publication Date |
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| CN106122565A CN106122565A (en) | 2016-11-16 |
| CN106122565B true CN106122565B (en) | 2018-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610771777.7A Active CN106122565B (en) | 2016-08-30 | 2016-08-30 | High-speed electromagnetic valve driver circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112594436B (en) * | 2020-12-22 | 2022-12-13 | 中国兵器装备集团自动化研究所有限公司 | Power electromagnetic valve quick start circuit and start method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477870A (en) * | 2008-09-27 | 2009-07-08 | 北京理工大学 | Generation method and apparatus for electromagnetic valve driving current |
| CN202194730U (en) * | 2010-12-07 | 2012-04-18 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Magnetic valve driving device with protective function |
| FR2976618B1 (en) * | 2011-06-16 | 2016-02-12 | Continental Automotive France | CIRCUIT AND METHOD FOR CONTROLLING A SOLENOID INJECTOR |
| CN105569859A (en) * | 2015-12-14 | 2016-05-11 | 中国北方发动机研究所(天津) | High-speed electromagnetic valve drive method with boosting and fault diagnosing functions and circuit |
| CN206191009U (en) * | 2016-08-30 | 2017-05-24 | 上海太易检测技术有限公司 | High -speed solenoid valve drive circuit |
-
2016
- 2016-08-30 CN CN201610771777.7A patent/CN106122565B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477870A (en) * | 2008-09-27 | 2009-07-08 | 北京理工大学 | Generation method and apparatus for electromagnetic valve driving current |
| CN202194730U (en) * | 2010-12-07 | 2012-04-18 | 中国第一汽车集团公司无锡油泵油嘴研究所 | Magnetic valve driving device with protective function |
| FR2976618B1 (en) * | 2011-06-16 | 2016-02-12 | Continental Automotive France | CIRCUIT AND METHOD FOR CONTROLLING A SOLENOID INJECTOR |
| CN105569859A (en) * | 2015-12-14 | 2016-05-11 | 中国北方发动机研究所(天津) | High-speed electromagnetic valve drive method with boosting and fault diagnosing functions and circuit |
| CN206191009U (en) * | 2016-08-30 | 2017-05-24 | 上海太易检测技术有限公司 | High -speed solenoid valve drive circuit |
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| CN106122565A (en) | 2016-11-16 |
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Effective date of registration: 20210331 Address after: 230088 3rd floor, No.4 factory building, Pearl Industrial Park, No.106, Chuangxin Avenue, high tech Zone, Hefei City, Anhui Province Patentee after: Hefei Taiyi Testing Technology Co.,Ltd. Address before: 200237 Shanghai Xuhui District City Jia Chuan Road No. 245 Building No. 3 room 506 Patentee before: TECHIK INSTRUMENT (SHANGHAI) Co.,Ltd. |
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