CN1367515A - A.C. contactor wide-voltage module - Google Patents
A.C. contactor wide-voltage module Download PDFInfo
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- CN1367515A CN1367515A CN 01102785 CN01102785A CN1367515A CN 1367515 A CN1367515 A CN 1367515A CN 01102785 CN01102785 CN 01102785 CN 01102785 A CN01102785 A CN 01102785A CN 1367515 A CN1367515 A CN 1367515A
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- circuit
- resistance
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- voltage
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Abstract
A broad-voltage module for AC contactor consists of protectino circuit, rectifier circuit, driver circuit, voltage-stabilizing circuit, voltage-limiting circuit, control circuit and starting circuit. In the application, AC power source is connected with protection circuit of the module and AC contactor is connected with driver circuit of the module. The module can greatly, raise the tolerance ability of AC contactor coil to the voltage wave of power grid and operation stability, and it also has the advantages of noise-free, low power consumption and low heat accumulation in maintaining state, the capability to make the compensation of capacitive power factor to the inductive power grid. The module is especially suitable to be a attachment for AC contactor.
Description
The invention belongs to electronic technology field, particularly a kind of ac contactor coil that can improve greatly is to the tolerance of voltage ripple of power network and the A.C. contactor wide-voltage module of functional reliability.
In order to reach the requirement of A.C. contactor in the high-power of when starting and the low-power consumption when keeping adhesive, existing wide voltage A.C. contactor is to adopt the two coil configuration form, wherein, the coil that the line footpath is thick, the number of turn is less is as actuating coil, the coil that the line footpath is thin, the number of turn is more is as keeping coil, with a pair of transfer contact connecting circuit of often opening.As the working method of changeing direct current with interchange, the number of diodes that also needs rectification to use only reaches the element of protection usefulness.During work, actuating coil energising, A.C. contactor action pressing are often opened transfer contact and are connected and keep coil, make keep that coil works independently or with the actuating coil tandem working.Adopt the two coil configuration form to exist following weak point:
1, adhesive, is the fixed coil mode when keeping, can not carries out automatic adjustment with change in voltage.Therefore, the electrorheological by coil when input voltage is higher is big, causes coil heating to increase, and can occur burning the coil phenomenon when serious.
2, because the magnetic systems of A.C. contactor is selenium steel or ferromagnetic material, inductance is bigger during power frequency work.Therefore, changed to the immediate current of keeping the attitude conversion by the adhesive attitude, variation inductance is the quadratic function that electric current changes, arcing when it will cause normally opened contact closed.The arcing phenomenon is even more serious during high pressure, even makes the contact clinkering, influences the useful life of A.C. contactor.
3, the wide voltage A.C. contactor of twin coil is generally inductive element, and its power factor is lower, is generally between 0.2～0.8.
4, the wide voltage A.C. contactor of twin coil also has the voltage zero-cross vibration problem of common A.C. contactor, and hum is inevitable.The mechanical action time that exchanges vibration and A.C. contactor is analogous.Therefore, cause the contact of A.C. contactor that mechanical wear and electric arc can take place, influence the life-span of ac contactor contact.
Task of the present invention is easily to burn at the existing above-mentioned ac contactor coil of existing wide voltage A.C. contactor, the weak point that A.C. contactor useful life is short, power factor is low provides a kind of ac contactor coil that can improve to the tolerance of voltage ripple of power network and the A.C. contactor wide-voltage module of functional reliability.
Task of the present invention is finished as follows: the A.C. contactor wide-voltage module comprises protective circuit, rectification circuit, drive circuit, voltage stabilizing circuit, pressure limiting circuit, control circuit and starting circuit.Protective circuit is made up of electric source filter circuit and mistake under voltage current protecting circuit, and wherein, electric source filter circuit is by inductance L
1And capacitor C
1Constitute, crossing the under voltage current protecting circuit is by piezo-resistance RY
1, inductance L
1And capacitor C
1Constitute; Rectification circuit is by rectifier diode D
1, D
2, D
3, D
4Constitute, they form the high tension loop full bridge rectifier; Drive circuit is made up of power driving circuit and freewheeling circuit, and wherein, power driving circuit is by field effect transistor BG
1Constitute, freewheeling circuit is by diode D
10Constitute; Voltage stabilizing circuit is made up of reduction voltage circuit, rectification circuit and filter circuit of pressure-stabilizing, and wherein, reduction voltage circuit is by capacitor C
2, C
3Constitute, rectification circuit is by rectifier diode D
5, D
6, D
7, D
8Constitute, filter circuit of pressure-stabilizing is by electrochemical capacitor C
4With voltage-stabiliser tube DW
1, DW
2, DW
3Constitute; Pressure limiting circuit is made up of sample circuit and voltage limit circuit, and wherein, sample circuit is by resistance R
1, R
2, R
3, diode D
9With electrochemical capacitor C
5Constitute, voltage limit circuit is by resistance R
4, R
5, R
6, R
7, voltage-stabiliser tube DW
4And integrated circuit (IC)
11Constitute; Control circuit is by resistance R
8, R
9, R
10, R
11, capacitor C
6, C
7, C
8, C
10, voltage-stabiliser tube DW
5And integrated circuit (IC)
2Constitute; Starting circuit is by resistance R
12, R
13, R
14, R
15, R
16, capacitor C
9And integrated circuit (IC)
12Constitute.
During use, AC power is connected on the protective circuit of A.C. contactor wide-voltage module, and A.C. contactor is connected on the drive circuit of A.C. contactor wide-voltage module.During work, when AC supply voltage adds the circuit of A.C. contactor wide-voltage module, the A.C. contactor wide-voltage module is started working, and the starting setting-up time picks up counting, and the big power of circuit output of A.C. contactor wide-voltage module makes the A.C. contactor adhesive; Setting-up time arrives, and the circuit of A.C. contactor wide-voltage module transfers the adhesive that A.C. contactor is kept in small-power output to, up to cutting off the AC power input voltage.At work, the protective circuit in the A.C. contactor wide-voltage module, rectification circuit and drive circuit are formed major loop, form subsidiary loop by voltage stabilizing circuit, pressure limiting circuit, control circuit and starting circuit.The electric source filter circuit role of the protective circuit in the A.C. contactor wide-voltage module is: filtering external high frequency clutter and outer the rushing down of high frequency conduction that stops internal circuit; The mistake under voltage current protecting circuit role of the protective circuit in the A.C. contactor wide-voltage module is: when voltage or electric current surpass set point, cut off circuit, the protection A.C. contactor is not burnt.Rectification circuit role in the A.C. contactor wide-voltage module is: provide A.C. contactor work required direct voltage.The power driving circuit of the drive circuit in the A.C. contactor wide-voltage module is to be used for realizing the conversion that instantaneous high-power driving and small-power are kept; The freewheeling circuit of the drive circuit in the A.C. contactor wide-voltage module is that the instantaneous high back voltage that produces when cutting off the power supply for inductive load provides the bleed off loop.Subsidiary loop in the A.C. contactor wide-voltage module is a low-voltage circuit, and it is the control loop in the A.C. contactor wide-voltage module.
A.C. contactor wide-voltage module of the present invention can improve tolerance and the functional reliability of ac contactor coil to voltage ripple of power network greatly, and in use it also has following characteristics:
Do not have the interchange noise when 1, working, main contact does not have machinery wearing and tearing and arc damage after the adhesive.
2, can be to the capacitive power factor compensation of perceptual electrical network.
3, when A.C. contactor is kept attitude, only feed very little electric current in the coil of A.C. contactor, be permanent average power state (average power is about 1W), therefore heating is extremely low.
4, improve the Electro Magnetic Compatibility of A.C. contactor, especially improve anti-lightning surge, impulse train jamming performance.
5, when overvoltage or overcurrent damage take place, only burn wide potential circuit, the protection A.C. contactor is not burnt, and this performance benefit in large-scale A.C. contactor is particularly evident.
6, make the action of A.C. contactor soft during high voltage, do not have powerful adhesive and impact.
The present invention is particularly suitable as a kind of annex of A.C. contactor.
Description of drawings:
Fig. 1 is the circuit block diagram of A.C. contactor wide-voltage module.Wherein (1) represents protective circuit; (2) expression rectification circuit; (3) expression drive circuit; (4) expression voltage stabilizing circuit; (5) expression pressure limiting circuit; (6) expression control circuit; (7) expression starting circuit; (8) expression AC power; (9) expression A.C. contactor.
Fig. 2 is the circuit diagram of A.C. contactor wide-voltage module.L wherein
1Be inductance; C
1-C
3, C
6-C
10Be electric capacity; C
4, C
5Be electrochemical capacitor; RY
1Be piezo-resistance; D
1-D
8Be rectifier diode; D
9, D
10Be diode; BG
1Be field effect transistor; DW
1-DW
5Be voltage-stabiliser tube; R
1-R
16Be resistance; IC
11, IC
12, IC
2Be integrated circuit.
Below in conjunction with accompanying drawing, the invention will be further described by embodiment.
A kind of A.C. contactor wide-voltage module, this module comprise protective circuit (1), rectification circuit (2), drive circuit (3), voltage stabilizing circuit (4), pressure limiting circuit (5), control circuit (6) and starting circuit (7).Wherein, protective circuit (1) comprises by inductance L
1And capacitor C
1The electric source filter circuit that constitutes and by piezo-resistance RY
1, inductance L
1And capacitor C
1The mistake under voltage current protecting circuit that constitutes; Rectification circuit is by rectifier diode D
1, D
2, D
3, D
4Constitute; Drive circuit comprises by field effect transistor BG
1The power driving circuit that constitutes and by diode D
10The freewheeling circuit that constitutes; Voltage stabilizing circuit comprises by capacitor C
2, C
3The reduction voltage circuit that constitutes, by rectifier diode D
5, D
6, D
7, D
8The rectification circuit that constitutes and by electrochemical capacitor C
4With voltage-stabiliser tube DW
1, DW
2, DW
3The filter circuit of pressure-stabilizing that constitutes; Pressure limiting circuit comprises by resistance R
1, R
2, R
3, diode D
9With electrochemical capacitor C
5The sample circuit that constitutes and by resistance R
4, R
5, R
6, R
7, voltage-stabiliser tube DW
4And integrated circuit (IC)
11The voltage limit circuit that constitutes; Control circuit is by resistance R
8, R
9, R
10, R
11, capacitor C
6, C
7, C
8, C
10, voltage-stabiliser tube DW
5And integrated circuit (IC)
2Constitute; Starting circuit is by resistance R
12, R
13, R
14, R
15, R
16, capacitor C
9And integrated circuit (IC)
12Constitute.Wherein, inductance L
1An end and AC power live wire join inductance L
1The other end respectively with capacitor C
1One end, piezo-resistance RY
1One end, rectifier diode D
1Positive pole, D
3Negative pole, capacitor C
2One end joins.Capacitor C
1The other end is connected to AC power ground wire, piezo-resistance RY respectively
1The other end, capacitor C
3One end, rectifier diode D
2Positive pole, D
4Negative pole on.Rectifier diode D
1Negative pole be connected to rectifier diode D respectively
2Negative pole, resistance R
1One end, diode D
10Negative pole, an end of A.C. contactor.Rectifier diode D
3Positive pole be connected to rectifier diode D respectively
4Positive pole, D
7Positive pole, D
8Positive pole, electrochemical capacitor C
4Negative pole, voltage-stabiliser tube DW
1Positive pole, DW
2Positive pole, DW
3Positive pole, resistance R
2One end, electrochemical capacitor C
5Negative pole, resistance R
3One end, R
6One end, integrated circuit (IC)
114 pin, capacitor C
6One end, C
8One end, integrated circuit (IC)
22 pin and 5 pin, capacitor C
9One end, C
10One end, resistance R
13One end, R
14One end, R
11One end, voltage-stabiliser tube DW
5On the positive pole.Capacitor C
2The other end is connected to rectifier diode D respectively
5Anodal, D
7On the negative pole.Rectifier diode D
5Negative pole is connected to rectifier diode D respectively
6Negative pole, electrochemical capacitor C
4Positive pole, voltage-stabiliser tube DW
1Negative pole, DW
2Negative pole, DW
3Negative pole, integrated circuit (IC)
118 pin, integrated circuit (IC)
27 pin, resistance R
15One end, R
16On one end.Capacitor C
3The other end is connected to rectifier diode D respectively
6Anodal, D
8On the negative pole.Resistance R
1The other end is connected to resistance R respectively
2The other end and diode D
9Positive pole on.Diode D
9Negative pole be connected to resistance R respectively
4One end, R
3The other end and electrochemical capacitor C
5Positive pole on.Resistance R
4The other end is connected to integrated circuit (IC)
112 pin on.Integrated circuit (IC)
111 pin be connected to voltage-stabiliser tube DW
4Positive pole on.Integrated circuit (IC)
113 pin be connected to resistance R respectively
5One end and R
6On the other end.Voltage-stabiliser tube DW
4Negative pole series resistance R
7After be connected on integrated circuit (IC)
21 pin on.Resistance R
5The other end is connected to capacitor C respectively
6The other end, resistance R
8One end, integrated circuit (IC)
28 pin on.Integrated circuit (IC)
23 pin be connected to resistance R respectively
10One end, capacitor C
10The other end, capacitor C
7One end, resistance R
12One end.Integrated circuit (IC)
24 pin be connected to resistance R respectively
8The other end, capacitor C
7The other end, C
8On the other end.Integrated circuit (IC)
26 pin series resistance R
9After be connected to field effect transistor BG respectively
1The G utmost point, voltage-stabiliser tube DW
5Negative pole on.Integrated circuit (IC)
127 pin and resistance R
12The other end joins.Integrated circuit (IC)
125 pin be connected to capacitor C respectively
9The other end, resistance R
13The other end, R
15On the other end.Integrated circuit (IC)
126 pin be connected to resistance R respectively
14The other end and R
16On the other end.Field effect transistor BG
1The S utmost point be connected to resistance R respectively
10The other end and R
11On the other end.Field effect transistor BG
1The D utmost point be connected to diode D respectively
10On the other end of positive pole and A.C. contactor.
Claims (2)
1, a kind of A.C. contactor wide-voltage module; it is characterized in that this module comprises protective circuit (1), rectification circuit (2), drive circuit (3), voltage stabilizing circuit (4), pressure limiting circuit (5), control circuit (6) and starting circuit (7); wherein, protective circuit (1) comprises by inductance L
1And capacitor C
1The electric source filter circuit that constitutes and by piezo-resistance RY
1, inductance L
1And capacitor C
1The mistake under voltage current protecting circuit that constitutes; Rectification circuit is by rectifier diode D
1, D
2, D
3, D
4Constitute; Drive circuit comprises by field effect transistor BG
1The power driving circuit that constitutes and by diode D
10The freewheeling circuit that constitutes; Voltage stabilizing circuit comprises by capacitor C
2, C
3The reduction voltage circuit that constitutes, by rectifier diode D
5, D
6, D
7, D
8The rectification circuit that constitutes and by electrochemical capacitor C
4With voltage-stabiliser tube DW
1, DW
2, DW
3The filter circuit of pressure-stabilizing that constitutes; Pressure limiting circuit comprises by resistance R
1, R
2, R
3, diode D
9With electrochemical capacitor C
5The sample circuit that constitutes and by resistance R
4, R
5, R
6, R
7, voltage-stabiliser tube DW
4And integrated circuit (IC)
11The voltage limit circuit that constitutes; Control circuit is by resistance R
8, R
9, R
10, R
11, capacitor C
6, C
7, C
8, C
10, voltage-stabiliser tube DW
5And integrated circuit (IC)
2Constitute; Starting circuit is by resistance R
12, R
13, R
14, R
15, R
16, capacitor C
9And integrated circuit (IC)
12Constitute.
2, A.C. contactor wide-voltage module according to claim 1 is characterized in that in the electronic circuit of this module inductance L
1An end and AC power live wire join inductance L
1The other end respectively with capacitor C
1One end, piezo-resistance RY
1One end, rectifier diode D
1Positive pole, D
3Negative pole, capacitor C
2One end joins, capacitor C
1The other end is connected to AC power ground wire, piezo-resistance RY respectively
1The other end, capacitor C
3One end, rectifier diode D
2Positive pole, D
4Negative pole on, rectifier diode D
1Negative pole be connected to rectifier diode D respectively
2Negative pole, resistance R
1One end, diode D
10Negative pole, an end of A.C. contactor, rectifier diode D
3Positive pole be connected to rectifier diode D respectively
4Positive pole, D
7Positive pole, D
8Positive pole, electrochemical capacitor C
4Negative pole, voltage-stabiliser tube DW
1Positive pole, DW
2Positive pole, DW
3Positive pole, resistance R
2One end, electrochemical capacitor C
5Negative pole, resistance R
3One end, R
6One end, integrated circuit (IC)
114 pin, capacitor C
6One end, C
8One end, integrated circuit (IC)
22 pin and 5 pin, capacitor C
9One end, C
10One end, resistance R
13One end, R
14One end, R
11One end, voltage-stabiliser tube DW
5On the positive pole, capacitor C
2The other end is connected to rectifier diode D respectively
5Anodal, D
7On the negative pole.Rectifier diode D
5Negative pole is connected to rectifier diode D respectively
6Negative pole, electrochemical capacitor C
4Positive pole, voltage-stabiliser tube DW
1Negative pole, DW
2Negative pole, DW
3Negative pole, integrated circuit (IC)
118 pin, integrated circuit (IC)
27 pin, resistance R
15One end, R
16On one end, capacitor C
3The other end is connected to rectifier diode D respectively
6Anodal, D
8On the negative pole, resistance R
1The other end is connected to resistance R respectively
2The other end and diode D
9Positive pole on, diode D
9Negative pole be connected to resistance R respectively
4One end, R
3The other end and electrochemical capacitor C
5Positive pole on, resistance R
4The other end is connected to integrated circuit (IC)
112 pin on, integrated circuit (IC)
111 pin be connected to voltage-stabiliser tube DW
4Positive pole on, integrated circuit (IC)
113 pin be connected to resistance R respectively
5One end and R
6On the other end, voltage-stabiliser tube DW
4Negative pole series resistance R
7After be connected on integrated circuit (IC)
21 pin on, resistance R
5The other end is connected to capacitor C respectively
6The other end, resistance R
8One end, integrated circuit (IC)
28 pin on, integrated circuit (IC)
23 pin be connected to resistance R respectively
10One end, capacitor C
10The other end, capacitor C
7One end, resistance R
12One end, integrated circuit (IC)
24 pin be connected to resistance R respectively
8The other end, capacitor C
7The other end, C
8On the other end, integrated circuit (IC)
26 pin series resistance R
9After be connected to field effect transistor BG respectively
1The G utmost point, voltage-stabiliser tube DW
5Negative pole on, integrated circuit (IC)
127 pin and resistance R
12The other end joins, integrated circuit (IC)
125 pin be connected to capacitor C respectively
9The other end, resistance R
13The other end, R
15On the other end, integrated circuit (IC)
126 pin be connected to resistance R respectively
14The other end and R
16On the other end, field effect transistor BG
1The S utmost point be connected to resistance R respectively
10The other end and R
11On the other end, field effect transistor BG
1The D utmost point be connected to diode D respectively
10On the other end of positive pole and A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01102785 CN1367515A (en) | 2001-01-24 | 2001-01-24 | A.C. contactor wide-voltage module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01102785 CN1367515A (en) | 2001-01-24 | 2001-01-24 | A.C. contactor wide-voltage module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1367515A true CN1367515A (en) | 2002-09-04 |
Family
ID=4652986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01102785 Pending CN1367515A (en) | 2001-01-24 | 2001-01-24 | A.C. contactor wide-voltage module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1367515A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895216A (en) * | 2010-06-24 | 2010-11-24 | 上海阿卡得电子有限公司 | State switching circuit of wide-voltage switch |
| CN101510485B (en) * | 2009-03-20 | 2011-04-06 | 厦门理工学院 | Full width voltage contactor controller |
-
2001
- 2001-01-24 CN CN 01102785 patent/CN1367515A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101510485B (en) * | 2009-03-20 | 2011-04-06 | 厦门理工学院 | Full width voltage contactor controller |
| CN101895216A (en) * | 2010-06-24 | 2010-11-24 | 上海阿卡得电子有限公司 | State switching circuit of wide-voltage switch |
| CN101895216B (en) * | 2010-06-24 | 2012-09-26 | 上海阿卡得电子有限公司 | State switching circuit of wide-voltage switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |