CN2129467Y - Electricity saving device for ac contactor - Google Patents
Electricity saving device for ac contactor Download PDFInfo
- Publication number
- CN2129467Y CN2129467Y CN 92218272 CN92218272U CN2129467Y CN 2129467 Y CN2129467 Y CN 2129467Y CN 92218272 CN92218272 CN 92218272 CN 92218272 U CN92218272 U CN 92218272U CN 2129467 Y CN2129467 Y CN 2129467Y
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- CN
- China
- Prior art keywords
- contactor
- control circuit
- capacitor
- circuit
- battery saving
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- Expired - Fee Related
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Abstract
Disclosed is a power saving device for AC contactor. The mechanism control part mainly comprises a magnetic conduction rack (1), a fixed iron core (3), a trip coil (4), a moving core (5), brackets (7), (12), a lock rod (8), a fastener (10), a connecting rod (11) and a spring (16). The trip coil in a control circuit does not consume power usually. During operating, the power consumption of the circuit is remained at 0.35w, the charging time is 20 ms, and the power saving efficiency obtains 99.73%. The control circuit components are fewer. The structure is compact. The printed circuit board size is 38x 45 (mm). The circuit control board is a module standard, whose volume equals to a matchbox. The plug-in type structure is adopted. The operation and the maintenance are convenient, safe and reliable. The production cost is low.
Description
The utility model relates to the low-voltage electrical apparatus in the low-voltage distributing line, mainly is the A.C. contactor battery saving arrangement that uses in the equipment such as electric power system and machinery, chemical industry.
Its work of existing A.C. contactor is kept coil and is in the power consumption state always, and the sticking power consumption is bigger, fail safe, dynamic stability and thermal stability relatively poor (the sharp electric power of water breakthrough publishing house publishes " factory's distribution design manual " Chapter 11 nineteen eighty-three).
A kind of A.C. contactor electricity-saving protector (application number 91215810.7 is arranged in recent years; notification number CN2098087U); adopt caliper brake mechanical self-latching mechanism and control circuit; though have defencive functions such as under-voltage, phase shortage, electric leakage, electric shock; power savings is obvious; but its mechanical part clamp structure makes relevant interoperation not too reliable; its control circuit line design components and parts are many; the corresponding fault point that increases circuit; adopt the sensitive switch contact to discharge electric energy to tripping coil by shunt capacitance; because the electric flux of abrupt release is bigger, easily switch contact is burnt out.
The application's purpose is to change existing A.C. contactor (as CJ12 series), keep its original function to increase the battery saving arrangement that can satisfy the secondary network requirement, its tripping coil not power consumption at ordinary times, circuit is kept power consumption and only is 0.35 watt during work, charging interval is 20 milliseconds only, and power savings reaches 99.73%.Its mechanical control section volume is little, simple and compact for structure.The control circuit components and parts are few, only use one 38 * 45(mm) printed wiring board to make module, adopt the plug-in structure, use easy to maintenancely, safe, reliably, and production cost is low.
The purpose of this utility model can reach by following measure.
A kind of A.C. contactor battery saving arrangement; its mechanical control section is mainly by magnetic guiding frame (1), secured core (3), tripping coil L(4), movable core (5), support (7) (12), locking bar (8), snap close (10), connecting rod (11), spring (16) etc. form; control circuit is provided with accumulator, rectification phase-shift filtering network, rectification phase shift dividing potential drop filter network, anti-interference, protective circuit and dropout current supply circuit.It is characterized in that: snap close (10) is fixed on the locking bar (8), connecting rod (11) flexibly connects with snap close (10), spring (16) is enclosed within on the locking bar (8), by spacer (15) and latch (9) positioning and fixing, be covered with secured core (3) tripping coil L(4 in the magnetic guiding frame (1)) and movable core (5), the groove ends of movable core (5) is connected with the tongue end wedge of locking bar (8), and is fixing by screw (6); Capacitor energy storage circuit in the control circuit is by diode D
1, capacitor C
1Be composed in series tripping coil L(4) be connected in parallel on controllable silicon SCR and diode D
1With capacitor C
1Between.
The connecting rod of the utility model machinery control section is " Z " shape, and its lower end transverse axis and snap close (11) flexibly connect, its upper end transverse axis and A.C. contactor movable core train wheel bridge (18) welding, or screw is fixedly connected, and the endoporus of support (12) is a square opening.
Rectification phase-shift filtering network in the utility model control circuit is by diode D
2, resistance R
1, voltage stabilizing didoe ZD is in series, and is connected with integrated package Ic in-phase end, supplies with integrated package Ic, E
+Terminal voltage and integrated package Ic in-phase end comparative voltage; Rectification phase shift dividing potential drop filter network is by diode D
2, resistance R
2, R
3Series connection, capacitor C
3With resistance R
3Parallel connection is connected with integrated package Ic end of oppisite phase, supplies with integrated package Ic end of oppisite phase comparative voltage, by integrated package Ic output and resistance R
4, R
5Series connection constitutes the anti-interference and protective circuit of damping; By the controllable silicon SCR capacitor C
1And tripping coil L(4) parallel connection constitutes dropout common-battery loop.
In conjunction with the accompanying drawings the utility model is carried out the operation principle division.
Fig. 1: A.C. contactor battery saving arrangement front view
Fig. 2: A.C. contactor battery saving arrangement right view
Fig. 3: A.C. contactor battery saving arrangement control circuit schematic diagram
The utility model A.C. contactor battery saving arrangement is made up of locking, tripping mechanism and control circuit.
The connecting rod (11) of (seeing Fig. 1,2) in the utility model locking mechanism is the transverse axis on its top of " Z " shape and A.C. contactor movable core train wheel bridge (18) welding or screw to be fixed, and its lower end transverse axis is positioned at snap close (10) ramp when threading off.Locking bar (8) is fixedlyed connected with snap close (10) and is fixed by support (7), (12), and support (7), (12) are connected with base plate (13) by screw (14).Produce the axial deflection angle for preventing that locking bar (8) from seesawing, influence the cooperation position of snap close (10) and connecting rod (11), the endoporus of support (12) is a square opening.Be with spring (16) on the locking bar (8), fixing by spacer (15) and latch (9).When A.C. contactor movable core (19) is done the adhesive action, this the suction-combining force is that drivening rod (11) lower end transverse axis makes it put forth effort on the ramp of snap close (10), pressure makes snap close (10) and locking bar (8) axially displaced left, abdicates the space for the descending cover of connecting rod (11) lower end transverse axis.After movable core (19) adhesive action puts in place, the lower end transverse axis of connecting rod (11) enters in the locked groove of snap close (10), at this moment, connecting rod (11) obtains removing to the compressing power of snap close (10), spring (16) instant-free prestressing force, promote locking bar (8) reseting movement to the right, make snap close (10) reach locking, thereby make A, the B of A.C. contactor, C three-phase Qc contact be able to long-time closed conducting connecting rod (11) lower end transverse axis.
In the utility model tripping mechanism, (see Fig. 1,2), magnetic guiding frame (1) covers on skeleton (2), secured core (3), tripping coil (4) and the movable core (5), be connected with base plate (13) by screw (17), form tripping mechanism, the groove ends of movable core (5) is connected by attachment screw (6) with the tongue end of locking bar (8).As tripping coil L(4) under the direct voltage effect, the high-intensity magnetic field that polarization is fixing, make the secured core (3) that is in its punching position form two sections magnet that the polarity orientation is identical with movable core (5), the S utmost point of secured core (3) and the N utmost point of movable core (5) are constituted flux circuit, the magnetic field that tripping coil (4) is produced acts on the N utmost point of secured core (3) fully and the S of movable core (5) extremely goes up, because the invariant position of secured core (3), the S of movable core (5) are extremely rapidly to the N extreme direction adhesive of secured core (3).Because movable core (5) is connected for concavo-convex wedge with locking bar (8), fixing by screw (6), thereby locking bar (8), snap close (10) also move with movable core (5), when movable core (5) is fixed after iron core (3) adhesive puts in place, snap close (10) forms potential difference with connecting rod (11) lower end transverse axis, cause dropout opportunity for connecting rod (11), under the return spring effect of A.C. contactor, connecting rod (11) is offed normal rapidly and is risen to the ramp position of snap close (10), at this moment, the QC contact of A.C. contactor A, B, C three-phase is corresponding disconnects simultaneously.Movable core (5) is in by adhesive, and spring (16) is squeezed and is the locking bar storage prestressing force that resets, as tripping coil L(4) when direct voltage exhausts dead electricity, the magnetic field Lock-out.The stored prestressing force of spring (16) obtains discharging, and at this moment, locking bar (8) movable core (5) and snap close (10) all return to original position.
In the utility model control circuit, (see accompanying drawing 3), be provided with accumulator, rectification phase-shift filtering network, rectification phase shift, dividing potential drop, filter network.Anti-interference and protective circuit etc.Press start button QA, A.C. contactor the A phase voltage form the loop through normally closed (stopping) button TA, start button QA and A.C. contactor pull-in winding QC to C phase voltage, supply with the QC pull-in winding and exchange the adhesive operating voltage for 380 volts, each contact QC closure provides 220 volts of working volts alternating currents for this circuit.In closing of contact moment, circuit can be decomposed into three courses of work: the A phase voltage is through normally closed (stopping) button TA, QC, fuse RD, diode D
1And capacitor C
1To the O phase, form accumulator to storage capacitor C
1Charging; The A circuitry phase is through normally closed (stopping) button TA, QC contact, fuse RD, diode D
2And resistance R
2, R
3Form the rectification and voltage division phase-shift network, to capacitor C
3Integrated package Ic end of oppisite phase one comparative voltage is supplied with in charging; A is through normally closed (stopping) button TA, QC contact, fuse RD, diode D
2, resistance R
1And capacitor C
2After the rectification phase shift, supply with integrated package IcE
+End operating voltage and in-phase end one comparative voltage, voltage are raised to 12 volts of backs of direct current by voltage-stabiliser tube ZD voltage stabilizing, form rectification phase shift, dividing potential drop filter network, because resistance R
1, capacitor C
2Time constant is far longer than resistance R
2, R
3And capacitor C
3So, get electric moment at circuit, end of oppisite phase at first electric, and voltage is higher than 12 volts of direct voltages again, thereby integrated package Ic output is in zero potential, not conducting of controllable silicon SCR is in case have a power failure or press normally closed (stopping) button TA, then resistance R
3, capacitor C
3The discharge constant be far smaller than resistance R
3, R
2, R
1And capacitor C
2, ic chip end of oppisite phase voltage is lower than its in-phase end voltage very soon, and the ic chip output becomes high potential by zero potential, the controllable silicon SCR conducting.Capacitor C
1Anode is through tripping coil L
(4), controllable silicon SCR is to capacitor C
1Negative terminal constitutes discharge loop, and tripping coil L produces magnetic field, the work of guiding tripping mechanism, and each QC contact of A.C. contactor A, B, C phase discharges, and this circuit does not have the A phase voltage, quits work.
The utility model carries out linkage process in conjunction with the accompanying drawings and embodiments and describes in detail.
Press start button QA, A, C two relative pull-in winding QC provide 380 couchers to make voltage, A.C. contactor movable core (19) action, drivening rod (11) lower end transverse axis acts on the suction-combining force the ramp of snap close (10), it is axially displaced to force snap close (10), locking bar (8), movable core (5) to be done to the left, and stores prestressing force for spring (16).When connecting rod (11) lower end transverse axis placed the locked groove position of snap close (10), spring (16) discharged prestressing force, movable core (5), locking bar (8), snap close (10) reset locking, and each contact is in intact closure state.At this moment, control circuit gets electric, to capacitor C
1, C
2, C
3The charging energy storage provides integrated package Ic in-phase end and end of oppisite phase comparative voltage, and the power consumption of keeping of this circuit is 0.35 watt.Unclamp startup button QA, the A.C. contactor pull-in winding is in no power consumption state.When having a power failure or pressing stop button TA, integrated package Ic end of oppisite phase voltage very piece descends, when being lower than integrated package Ic in-phase end voltage, and capacitor C
2Institute's accumulate energy, by integrated package Ic output through resistance R
4, R
5The damping protecting network triggers controllable silicon SCR, makes its conducting, capacitor C
1Institute's accumulate can be through tripping coil L(4) to controllable silicon SCR to ground wire to capacitor C
1Negative terminal forms discharge loop.Tripping coil L(4) under the direct voltage effect, to secured core (3) direction adhesive, drive locking bar (8), snap close (10) displacement by movable core (5), thread off with connecting rod (11), store prestressing force for simultaneously spring (16).Connecting rod is under the effect of A.C. contactor return spring power, get back to the upper inclined surface of snap close (10) rapidly, each QC contact is in open position, at this moment, the control circuit dead electricity, tripping coil L(4) dead electricity, spring (16) discharges prestressing force, locking bar (8) and snap close (10) are pushed to the right side and reset.
Claims (7)
1, a kind of A.C. contactor battery saving arrangement, its mechanical control section is mainly by magnetic guiding frame (1), secured core (3), tripping coil (4), movable core (5), support (7), (12), locking bar (8), snap close (10), connecting rod (11), spring compositions such as (16), control circuit partly is provided with capacitor energy storage circuit, rectification, phase shift, dividing potential drop, filter network, anti-interference and dropout current supply circuit etc., it is characterized in that: snap close (10) is fixed on the locking bar (8), connecting rod (11) flexibly connects with snap close (10), spring (16) is enclosed within on the locking bar (8), by spacer (15) and latch (9) positioning and fixing, be covered with secured core (3) in the magnetic guiding frame (1), tripping coil L (4) and movable core (5), movable core (5) and locking bar (8) are for wedge is connected, and be fixing by screw (6); Capacitor energy storage circuit in the control circuit is by diode D
1With capacitor C
1Series connection, tripping coil L (4) is connected in parallel on controllable silicon SCR and diode D
1With capacitor C
1Between.
2, A.C. contactor battery saving arrangement according to claim 1, it is characterized in that: connecting rod (11) is " Z " shape, its lower end transverse axis and snap close (10) flexibly connect, and its upper end transverse axis is fixedlyed connected with A.C. contactor movable core train wheel bridge (18) welding or screw.
3, A.C. contactor battery saving arrangement according to claim 1, the endoporus that it is characterized in that support (12) is a square opening.
4, A.C. contactor battery saving arrangement according to claim 1 is characterized in that: the rectification phase-shift filtering network in the control circuit is by diode D
2, resistance R 1, voltage stabilizing didoe ZD series connection, and with integrated package I
CIn-phase end and E
+End is connected.
5, A.C. contactor battery saving arrangement according to claim 1 is characterized in that: the rectification phase shift dividing potential drop filter network in the control circuit is by diode D
2, resistance R
2, R
3, series connection, capacitor C
3With resistance R
3Parallel connection is with integrated package I
CEnd of oppisite phase is connected.
6, A.C. contactor battery saving arrangement according to claim 1 is characterized in that anti-interference in the control circuit, and protective circuit is by integrated package I
CWith resistance R
4, R
5Series connection.
7, A.C. contactor battery saving arrangement according to claim 1 is characterized in that the dropout current supply circuit in the control circuit, by controllable silicon SCR and capacitor C
1And tripping coil L(4) formation in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218272 CN2129467Y (en) | 1992-07-04 | 1992-07-04 | Electricity saving device for ac contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92218272 CN2129467Y (en) | 1992-07-04 | 1992-07-04 | Electricity saving device for ac contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2129467Y true CN2129467Y (en) | 1993-04-07 |
Family
ID=33765831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92218272 Expired - Fee Related CN2129467Y (en) | 1992-07-04 | 1992-07-04 | Electricity saving device for ac contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2129467Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337418A (en) * | 2013-06-19 | 2013-10-02 | 国家电网公司 | Collision simulation device for combined electric appliance releasing linkage test |
-
1992
- 1992-07-04 CN CN 92218272 patent/CN2129467Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337418A (en) * | 2013-06-19 | 2013-10-02 | 国家电网公司 | Collision simulation device for combined electric appliance releasing linkage test |
| CN103337418B (en) * | 2013-06-19 | 2015-09-30 | 国家电网公司 | Combined electrical apparatus dropout linkage test is with clashing into analogue means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |