CN109192617A - A kind of A.C. contactor of the two coil configuration of the controllable suction of electromagnetism as counter-force - Google Patents
A kind of A.C. contactor of the two coil configuration of the controllable suction of electromagnetism as counter-force Download PDFInfo
- Publication number
- CN109192617A CN109192617A CN201811104601.1A CN201811104601A CN109192617A CN 109192617 A CN109192617 A CN 109192617A CN 201811104601 A CN201811104601 A CN 201811104601A CN 109192617 A CN109192617 A CN 109192617A
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- Prior art keywords
- iron core
- coil
- dynamic iron
- contactor
- combined floodgate
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- 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.)
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 90
- 230000003068 static effect Effects 0.000 claims description 14
- 230000005284 excitation Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000005291 magnetic effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Relay Circuits (AREA)
- Electromagnets (AREA)
Abstract
The present invention proposes a kind of A.C. contactor of the two coil configuration of the controllable suction of electromagnetism as counter-force, including electric-control system, contact system, dynamic iron core combined floodgate end, dynamic iron core separating brake end, fixed core, closing coil, opening coil；The contact system is set at dynamic iron core combined floodgate end；It is connected between the dynamic iron core combined floodgate end and dynamic iron core separating brake end with push rod；The fixed core is located between dynamic iron core combined floodgate end and dynamic iron core separating brake end, and closing coil and opening coil are equipped at fixed core, and closing coil actuation direction is attracted direction towards dynamic iron core separating brake end towards iron core combined floodgate end, opening coil is moved；When closing a floodgate, closing coil is powered and opening coil powers off, and iron core combined floodgate end and fixed core is made to be attracted and dynamic iron core separating brake end is pushed away fixed core with push rod；When separating brake, closing coil is powered off and opening coil is powered, and iron core separating brake end and fixed core is made to be attracted and dynamic iron core combined floodgate end is pushed away fixed core with push rod；The present invention has no arc, stabilization, the advantage of service life length.
Description
Technical field
The present invention relates to electrical equipment technical field, two coil configuration of especially a kind of controllable suction of electromagnetism as counter-force
A.C. contactor.
Background technique
In the prior art, A.C. contactor design in part unidirectional thyristor in parallel a pair of of or connects respectively on three-phase contact
One bidirectional thyristor realizes the differential of the arc operation of contactor, but such scheme bears the over-voltage of power electronic element, overcurrent
Capability Requirement is higher, if may cause to damage due to the heating loss of power electronic element, cause without reliable safeguard measure
Fault.
In existing A.C. contactor design, have through permanent magnet mechanism by the way that permanent magnet is combined reality with existing electromagnet
Now it is driven the way of the repertoire of wiring or electromagnetic mechanism；Since the presence of permanent magnet makes the separating brake counter-force of contactor be forever
Magnetic magnetic force and counter spring force, this is obviously bigger than electromagnetic contactor counter-force more；Permanent magnet can provide stable magnetic field, this is
A advantage, but under normality it is also disadvantage, contactor can be made inseparable in the case where no electricity, this is possible to operate in next time
When or suddenly incoming call when cause contingency.
In conjunction with problem above, the present invention uses the A.C. contactor of two coil configuration, dexterously makees the controllable suction of electromagnetism
For counter-force, solving the problems, such as that reaction spring is excessive too small can all influence contactor performance.To well solve contact point
The problem of repeatedly bouncing when disconnected or combined floodgate.And by the control of single-chip microcontroller, so that major loop disconnects near current over-zero, thus
Effectively realize micro- electric arc disjunction.Low pressure sticking circuit is added, under the premise of guaranteeing energization sticking, moreover it is possible to economize on resources, reduce
The problems such as coil long-time heating power.
Summary of the invention
The present invention proposes a kind of A.C. contactor of the two coil configuration of the controllable suction of electromagnetism as counter-force, have no arc,
Stablize, the advantage that the service life is long.
The present invention uses following technical scheme.
The A.C. contactor of the two coil configuration of a kind of controllable suction of electromagnetism as counter-force, for three-phase circuit
Separating brake, combined floodgate operation, the A.C. contactor include electric-control system, contact system, dynamic iron core combined floodgate end, dynamic iron core separating brake end,
Fixed core, closing coil, opening coil；The contact system is set at dynamic iron core combined floodgate end；The dynamic iron core combined floodgate end and dynamic
It is connected with including push rod retaining ring with the realization of the fastener of bolt between iron core separating brake end by push rod；The dynamic iron core combined floodgate end and
Push rod is integral；The fixed core is located between dynamic iron core combined floodgate end and dynamic iron core separating brake end, and closing line is equipped at fixed core
Circle and opening coil, closing coil actuation direction are attracted direction towards dynamic iron core separating brake towards iron core combined floodgate end, opening coil is moved
End；When closing a floodgate, closing coil is powered and opening coil powers off, and is attracted iron core combined floodgate end and fixed core and with push rod dynamic
Iron core separating brake end pushes away fixed core；When separating brake, closing coil is powered off and opening coil is powered, and makes iron core separating brake end and quiet iron
The heart is attracted and dynamic iron core combined floodgate end is pushed away fixed core with push rod.
Reaction spring is equipped between the dynamic iron core combined floodgate end and the fixed core；When opening coil and closing coil are disconnected
When electric, the reaction spring makes to maintain discrete state between iron core combined floodgate end and fixed core；Contact system includes static contact, moves
Contact；The moving contact is set at dynamic iron core combined floodgate end；When closing a floodgate, moves iron core combined floodgate end and drive moving contact mobile to static contact
And it engages.
The fixed core is fixed at the casing of A.C. contactor；Fixed core is the composite structure of E shape；Closing coil winding
It is fixed at closing coil skeleton and with closing coil retaining ring；Opening coil is wound at opening coil skeleton and with opening coil
Retaining ring is fixed.
The electric-control system includes single-chip microcontroller, power module, intelligent control module and circuit detection module；The intelligence control
Molding block includes that strong excitation module and low pressure keep control module.
The moving contact includes A phase main contact, B phase main contact, C phase main contact；B phase main contact is set to A phase main contact, C
Among phase main contact；B phase main contact height is greater than A phase main contact, C phase main contact, when closing a floodgate, A phase main contact, the main touching of C phase
Head is first engaged with static contact after so that A phase, B phase is closed a floodgate, and B phase main contact engages again with static contact so that B phase is closed a floodgate.
The circuit detection module detects the zero crossing for first opening phase load electric current of three-phase circuit, and with mistake
Delay duration T is determined on the basis of zero point, when A.C. contactor separating brake, electric-control system is after delay duration T；Pass through strong excitation mould
Block makes closing coil energization and opening coil power-off, and driving moving contact is separated by pre-set velocity with static contact, makes the three of alternating current
It is mutually quickly disconnected near load current point, realizes micro- electric arc separating brake.
The operating voltage of the closing coil is the single-phase pulsating direct current resulting after electric-control system rectifies of alternating voltage
Voltage；The electric-control system selects optimal closing phase angle when closing a floodgate according to pulsating dc voltage, so that A.C. contactor is most
The adhesive action closed a floodgate is completed when good combined floodgate initial phase angle.
After the closing coil executes combined floodgate operation under the strong excitation effect of strong excitation module, electric-control system is in single-chip microcontroller
So that closing coil is accessed low-voltage dc power supply under control, A.C. contactor is made to enter low-voltage direct-current sticking state.
When the low-voltage direct-current sticking state, the low-voltage dc power supply of closing coil access is the DC power supply of DC9V.
The dynamic iron core combined floodgate end is integrally formed structures with push rod；Dynamic iron core combined floodgate end, push rod, dynamic iron core separating brake end
It is a part of dynamic iron core；The dynamic iron core, fixed core are formed with the ferromagnetic material of no remanent magnetism.
The present invention is solved using the A.C. contactor of two coil configuration dexterously using the controllable suction of electromagnetism as counter-force
Reaction spring excessive too small the problem of all influencing contactor performance.It is multiple when to well solve contact disjunction or close a floodgate
The problem of spring.And by the control of single-chip microcontroller, so that major loop disconnects near current over-zero, to effectively realize micro- electric arc
Disjunction.Low pressure sticking circuit is added, under the premise of guaranteeing energization sticking, moreover it is possible to economize on resources, reduce coil and be powered for a long time
The problems such as fever.
The present invention solves the problems, such as to generate big electric arc and regular alternating current contactor separating brake when A.C. contactor disjunction only
The problem of by counter spring force, improves the performance indicator of its product.
The present invention can enter low-voltage direct-current sticking state after combined floodgate, therefore be able to achieve reliable, energy saving, noiseless sticking
Operation.
In the feed motion of A.C. contactor, different combined floodgate initial phase angles is selected, contactor will be with entirely different
It is attracted dynamic process；The present invention can select different best closing phase angles according to different supply voltages, make contactor best
Attracting process is completed under combined floodgate initial phase angle, therefore can effectively be avoided contact with not closing a floodgate for device and phenomenon or be avoided serious iron
The heart is hit and contact bounce.
Detailed description of the invention
The present invention is described in more detail with reference to the accompanying drawings and detailed description:
Attached drawing 1 is schematic diagram of the invention；
Attached drawing 2 is the partial schematic diagram of contact system of the invention；
Attached drawing 3 is control principle schematic diagram of the invention；
In figure: 1- moves iron core separating brake end；2- bolt；3- push rod；4- opening coil retaining ring；5- opening coil；6- opening coil bone
Frame；7- closing coil skeleton；8- closing coil；9- fixed core；10- moves iron core combined floodgate end；11- static contact；12- moving contact；13-
Touch spring；14- reaction spring；15- closing coil retaining ring；
101-A phase main contact；102-B phase main contact；103-C phase main contact；
300- push rod retaining ring.
Specific embodiment
As shown in Figure 1-3, a kind of A.C. contactor of two coil configuration of controllable suction of electromagnetism as counter-force, for three
The separating brake of phase alternating current circuit, combined floodgate operation, the A.C. contactor include electric-control system, contact system, dynamic iron core combined floodgate end 10,
Dynamic iron core separating brake end 1, fixed core 9, closing coil, opening coil；The contact system is set at dynamic iron core combined floodgate end；It is described dynamic
Phase is realized with the fastener for including push rod retaining ring 300 and bolt 2 by push rod 3 between iron core combined floodgate end and dynamic iron core separating brake end
Even；The dynamic iron core combined floodgate end 10 and push rod are integral；The fixed core is located at dynamic iron core combined floodgate end and dynamic iron core separating brake end
Between, closing coil 8 and opening coil 5 are equipped at fixed core, closing coil is attracted direction towards dynamic iron core combined floodgate end, separating brake line
Circle is attracted direction towards dynamic iron core separating brake end；When closing a floodgate, closing coil is powered and opening coil powers off, and makes iron core combined floodgate end
It is attracted with fixed core and dynamic iron core separating brake end is pushed away with push rod by fixed core；When separating brake, closing coil is powered off and opening coil
It is powered, iron core separating brake end and fixed core is made to be attracted and dynamic iron core combined floodgate end is pushed away fixed core with push rod.
Reaction spring 14 is equipped between the dynamic iron core combined floodgate end and the fixed core；When opening coil is equal with closing coil
When power-off, the reaction spring makes to maintain discrete state between iron core combined floodgate end and fixed core；Contact system includes static contact
11, moving contact 12；The moving contact is set at dynamic iron core combined floodgate end；When closing a floodgate, moves iron core combined floodgate end and drive moving contact to quiet
Contact is mobile and engages.
The fixed core is fixed at the casing of A.C. contactor；Fixed core is the composite structure of E shape；Closing coil winding
It is at closing coil skeleton 7 and fixed with closing coil retaining ring 15；Opening coil is wound at opening coil skeleton 6 and with separating brake
Coil retaining ring 4 is fixed.
The electric-control system includes single-chip microcontroller, power module, intelligent control module and circuit detection module；The intelligence control
Molding block includes that strong excitation module and low pressure keep control module.
The moving contact includes A phase main contact 101, B phase main contact 102, C phase main contact 103；B phase main contact is set to A phase
Among main contact, C phase main contact；B phase main contact height is greater than A phase main contact, C phase main contact, when closing a floodgate, A phase main contact,
C phase main contact is first engaged with static contact after so that A phase, B phase is closed a floodgate, and B phase main contact engages again with static contact so that B phase is closed a floodgate.
The circuit detection module detects the zero crossing for first opening phase load electric current of three-phase circuit, and with mistake
Delay duration T is determined on the basis of zero point, when A.C. contactor separating brake, electric-control system is after delay duration T；Pass through strong excitation mould
Block makes closing coil energization and opening coil power-off, and driving moving contact is separated by pre-set velocity with static contact, makes the three of alternating current
It is mutually quickly disconnected near load current point, realizes micro- electric arc separating brake.
The operating voltage of the closing coil is the single-phase pulsating direct current resulting after electric-control system rectifies of alternating voltage
Voltage；The electric-control system selects optimal closing phase angle when closing a floodgate according to pulsating dc voltage, so that A.C. contactor is most
The adhesive action closed a floodgate is completed when good combined floodgate initial phase angle.
After the closing coil executes combined floodgate operation under the strong excitation effect of strong excitation module, electric-control system is in single-chip microcontroller
So that closing coil is accessed low-voltage dc power supply under control, A.C. contactor is made to enter low-voltage direct-current sticking state.
When the low-voltage direct-current sticking state, the low-voltage dc power supply of closing coil access is the DC power supply of DC9V.
The dynamic iron core combined floodgate end is integrally formed structures with push rod；Dynamic iron core combined floodgate end, push rod, dynamic iron core separating brake end
It is a part of dynamic iron core；The dynamic iron core, fixed core are formed with the ferromagnetic material of no remanent magnetism.
In this example, push rod is connected with bolt 2 with dynamic iron core separating brake end；Moving contact is supported in dynamic iron core with touch spring 13 and closes
On lock end 10.
Claims (10)
1. the A.C. contactor of two coil configuration of a kind of controllable suction of electromagnetism as counter-force, for dividing three-phase circuit
Lock, combined floodgate operation, it is characterised in that: the A.C. contactor include electric-control system, contact system, dynamic iron core combined floodgate end (10),
Dynamic iron core separating brake end (1), fixed core (9), closing coil (8), opening coil (5)；The contact system is set to dynamic iron core and closes a floodgate
At end；By push rod (3) to include push rod retaining ring (300) and bolt between the dynamic iron core combined floodgate end and dynamic iron core separating brake end
(2) fastener, which is realized, to be connected；The dynamic iron core combined floodgate end (10) and push rod are integral；The fixed core is located at dynamic iron core and closes
Between lock end and dynamic iron core separating brake end, closing coil (8) and opening coil (5) are equipped at fixed core, closing coil is attracted direction
Towards iron core combined floodgate end is moved, opening coil is attracted direction towards dynamic iron core separating brake end；When closing a floodgate, closing coil is powered and separating brake
Coil blackout makes iron core combined floodgate end and fixed core be attracted and dynamic iron core separating brake end is pushed away fixed core with push rod；When separating brake,
Closing coil powers off and opening coil is powered, and is attracted iron core separating brake end with fixed core and dynamic iron core combined floodgate end is pushed away with push rod
From fixed core.
2. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 1 as counter-force,
It is characterized in that: being equipped with reaction spring (14) between the dynamic iron core combined floodgate end and the fixed core；When opening coil and closing line
When circle powers off, the reaction spring makes to maintain discrete state between iron core combined floodgate end and fixed core；Contact system includes quiet
Contact (11), moving contact (12)；The moving contact is set at dynamic iron core combined floodgate end；When closing a floodgate, it is dynamic to move the drive of iron core combined floodgate end
Contact is mobile to static contact and engages.
3. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 2 as counter-force,
Be characterized in that: the fixed core is fixed at the casing of A.C. contactor；Fixed core is the composite structure of E shape；Closing coil twines
It is around at closing coil skeleton (7) and fixed with closing coil retaining ring (15)；Opening coil is wound at opening coil skeleton (6)
And it is fixed with opening coil retaining ring (4).
4. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 2 as counter-force,
Be characterized in that: the electric-control system includes single-chip microcontroller, power module, intelligent control module and circuit detection module；The intelligence
Control module includes that strong excitation module and low pressure keep control module.
5. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 4 as counter-force,
Be characterized in that: the moving contact includes A phase main contact, B phase main contact, C phase main contact；B phase main contact is set to A phase main contact, C
Among phase main contact；B phase main contact height is greater than A phase main contact, C phase main contact, when closing a floodgate, A phase main contact, the main touching of C phase
Head is first engaged with static contact after so that A phase, B phase is closed a floodgate, and B phase main contact engages again with static contact so that B phase is closed a floodgate.
6. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 5 as counter-force,
Be characterized in that: the circuit detection module detects the zero crossing for first opening phase load electric current of three-phase circuit, and with
Delay duration T is determined on the basis of zero crossing, when A.C. contactor separating brake, electric-control system is after delay duration T；Pass through strong excitation
Module makes closing coil energization and opening coil power-off, and driving moving contact is separated by pre-set velocity with static contact, makes alternating current
Three-phase quickly disconnects near load current point, realizes micro- electric arc separating brake.
7. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 4 as counter-force,
Be characterized in that: the operating voltage of the closing coil is the single-phase pulsating direct current resulting after electric-control system rectifies of alternating voltage
Voltage；The electric-control system selects optimal closing phase angle when closing a floodgate according to pulsating dc voltage, so that A.C. contactor is most
The adhesive action closed a floodgate is completed when good combined floodgate initial phase angle.
8. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 4 as counter-force,
Be characterized in that: after the closing coil executes combined floodgate operation under the strong excitation effect of strong excitation module, electric-control system is in monolithic
So that closing coil is accessed low-voltage dc power supply under machine control, A.C. contactor is made to enter low-voltage direct-current sticking state.
9. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 8 as counter-force,
Be characterized in that: when the low-voltage direct-current sticking state, the low-voltage dc power supply of closing coil access is the DC power supply of DC9V.
10. a kind of A.C. contactor of two coil configuration of the controllable suction of electromagnetism according to claim 4 as counter-force,
Be characterized in that: the dynamic iron core combined floodgate end is integrally formed structures with push rod；Dynamic iron core combined floodgate end, push rod, dynamic iron core separating brake
End is a part of dynamic iron core；The dynamic iron core, fixed core are formed with the ferromagnetic material of no remanent magnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104601.1A CN109192617B (en) | 2018-09-21 | 2018-09-21 | Electromagnetic controllable attraction force is as alternating current contactor of twin coil structure of counter-force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104601.1A CN109192617B (en) | 2018-09-21 | 2018-09-21 | Electromagnetic controllable attraction force is as alternating current contactor of twin coil structure of counter-force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109192617A true CN109192617A (en) | 2019-01-11 |
| CN109192617B CN109192617B (en) | 2020-03-10 |
Family
ID=64909014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104601.1A Expired - Fee Related CN109192617B (en) | 2018-09-21 | 2018-09-21 | Electromagnetic controllable attraction force is as alternating current contactor of twin coil structure of counter-force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109192617B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505975Y (en) * | 2000-01-17 | 2002-08-14 | 吕永祥 | Magnetic force operating structure |
| US20180090291A1 (en) * | 2016-09-29 | 2018-03-29 | Schneider Electric USA, Inc. | Weld resistant contactor |
-
2018
- 2018-09-21 CN CN201811104601.1A patent/CN109192617B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505975Y (en) * | 2000-01-17 | 2002-08-14 | 吕永祥 | Magnetic force operating structure |
| US20180090291A1 (en) * | 2016-09-29 | 2018-03-29 | Schneider Electric USA, Inc. | Weld resistant contactor |
Non-Patent Citations (3)
| Title |
|---|
| 刘诚承等: "风电交流接触器电磁系统的动态特性研究", 《第十三届沈阳科学学术年会论文集（理工医农）》 * |
| 吕伯钦等: "双线圈单极智能交流接触器的实现及动态测试与分析", 《电气开关》 * |
| 陈德为等: "具有电磁可控反力的智能交流接触器的实现与动态分析", 《中国电机工程学报》 * |
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| CN109192617B (en) | 2020-03-10 |
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Granted publication date: 20200310 |