CN2128774Y - Reverse magnetic AC/DC contactor - Google Patents
Reverse magnetic AC/DC contactor Download PDFInfo
- Publication number
- CN2128774Y CN2128774Y CN 92231001 CN92231001U CN2128774Y CN 2128774 Y CN2128774 Y CN 2128774Y CN 92231001 CN92231001 CN 92231001 CN 92231001 U CN92231001 U CN 92231001U CN 2128774 Y CN2128774 Y CN 2128774Y
- Authority
- CN
- China
- Prior art keywords
- iron core
- contactor
- disconnected
- solenoid
- circuit
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 230000003068 static effect Effects 0.000 claims abstract description 14
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
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- Electromagnets (AREA)
Abstract
The utility model provides a contrary magnetism AC DC contactor, it includes shell, main contact, auxiliary contact, disconnected I-shaped moves iron core (1), spring (2), disconnected I-shaped quiet iron core (5), solenoid (3, JC) etc. its characterized in that: an annular permanent magnet (4) is sleeved on the broken I-shaped static iron core below the electromagnetic coil (3); a circuit for controlling the forward and reverse current of the electromagnetic coil (JC) is arranged in the housing; the circuit consists of a main loop and a power-off control circuit. Its advantages are high energy saving and long service life of electromagnetic coil and contact.
Description
The utility model is about a kind of contactor, more specifically says so about a kind of contrary magnetic AC/DC contactor.
As everyone knows, present contactor is the reaction force interoperation that utilizes electromagnetic attraction and spring, and makes a kind of electrical equipment of contact closure and disjunction.It is mainly by electromagnetic system, contact system, compositions such as arc-control device, counter-force device.After its operation principle was the solenoid energized, coil current produced magnetic field, made static iron core produce the reaction force that enough suction overcomes spring, with the downward adhesive of iron core, thereby drove contact system action (closure).When contactor coil cut off the power supply, static iron core suction disappeared, and moving iron core resets under the effect of reaction force spring, drove contact system also reset (disconnection) simultaneously.Because the coil of this contactor is switched on all the time,, and also there are shortcomings such as heating, noise so it need consume certain electric energy.
In order to overcome above-mentioned shortcoming, Chinese patent CN2077585U discloses a kind of non-power loss non-noise holding contactor, and it has adopted moving permanent magnet, static magnetic core, forward attraction circuit, has oppositely discharged circuit.But it oppositely discharges the necessary armrest action of circuit, and therefore, when grid power blackout, contactor is not separated, causes staff, maintenance personal's injury accident easily.In addition, moving permanent magnet and the direct collision of static magnetic core, moving permanent magnet crashes easily.
The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of safe and reliable, energy-conservation contrary magnetic AC/DC contactor is provided.
According to the contrary magnetic AC/DC contactor of the utility model, it comprises shell, main contacts, auxiliary contact, the moving iron core (1) of disconnected I shape, spring (2), disconnected I shape static iron core (5), solenoid (3, JC) etc., it is characterized in that: below solenoid (3), on the disconnected I shape static iron core, be with an annular permanent magnet (4); In above-mentioned shell, be provided with control above-mentioned solenoid (JC) forward and reverse alive circuit; This circuit is made up of major loop and power-off control circuit.
It is further characterized in that said major loop is in series by stop button (TA), start button (QA), diode (D1) solenoid (JC); Power-off control circuit comprises first series arm of being made up of diode (D3), resistance (R3) and relay (J), by second series arm that diode (D2), resistance (R2) and electric capacity (C1) are formed, be connected across thyristor (BT) and grid circuit (R1, J1) thereof between the major loop and second series arm.
Be elaborated below in conjunction with the specific embodiment of accompanying drawing to the contrary magnetic AC/DC contactor of the utility model.
Fig. 1 is the structural representation of the contrary magnetic AC/DC contactor of the utility model.
Fig. 2 is the circuit theory diagrams of the contrary magnetic AC/DC contactor of the utility model.
At first three sees Fig. 1, in the contrary magnetic AC/DC contactor of the utility model, adopted and common contactor moving iron core 1 of similarly disconnected I shape and disconnected I shape static iron core 5, the moving iron core 1 of disconnected I shape is also supported by a pair of spring 2, to keep common off-state, moving iron core 1 of disconnected I shape and moving contact rack, moving contact, the auxiliary dynamic and static support that touches are together with one.Solenoid 3 below have annular permanent magnets 4 different with common contactor are enclosed within on the disconnected I shape static iron core.Like this, when solenoid 3 forwards are switched on, produce a paramagnetic, make the magnetic pole of moving iron core 1 lower end of disconnected I shape opposite with the magnetic pole of disconnected I shape static iron core 5 upper ends, if the magnetic field that annular permanent magnet 4 produces makes the very N utmost point of moving iron core 5 upper ends of disconnected I shape, then moving iron core 1 lower end of disconnected I shape this moment is the S utmost point.Because the acting in conjunction of the electromagnetic force that annular permanent magnet 4 magnetic force and solenoid produce, make the moving iron core 1 of disconnected I shape overcome the support force of spring 2 and, closely contact thereby drive each contact forcefully by downward adhesive.When solenoid is oppositely switched on, produce contrary magnetic, make the magnetic pole of moving iron core 1 lower end of disconnected I shape and the magnetic pole identical (for the N utmost point) of disconnected I shape static iron core 5 upper ends, because the mutually exclusive effect of same pole adds the support force of upper spring 2, the moving iron core of disconnected I shape is upspring rapidly, and each contact disconnects rapidly.In addition, directly do not contact because disconnected I shape moves iron core, thereby overcome the shortcoming that permanent magnet breaks up easily among the above-mentioned Chinese patent CN2077585U with permanent magnet.
The crux of the contrary magnetic AC/DC contactor of the utility model is partly all known as those of ordinary skill though only drawn in Fig. 1, and it also comprises with the similar moving contact of common contactor, fixed contact, often opens, normally closed, main and auxiliary contact; Lug plate; The extinguishing arc cover; Shell etc.
The forward of above-mentioned solenoid 3, reverse energising are by circuit control shown in Figure 2, and this circuit can be arranged in the above-mentioned shell.In Fig. 2, A, B two termination power supplys, stop button TA, start button QA, diode D1 and solenoid JC(are the solenoid 3 among Fig. 1) the formation major loop.When pressing start button QA, power supply is given the energising of solenoid JC forward through diode D1, makes the contactor adhesive, operate as normal.Even unclamp start button QA this moment, because the effect of annular permanent magnet 4, contactor also can keep adhesive.Because when operate as normal, solenoid JC no power is so saved the electric energy that solenoid consumed greatly.Because the adhesive of contactor, its auxiliary contact JC1 connects, and power supply is powered to power-off control circuit.Power-off control circuit is by diode D2, D3, resistance R 2, R2, R3, capacitor C 1, C2, and thyristor BT, relay J and normally-closed contact J1 thereof form.Power supply is powered to relay J by diode D3, resistance R 3 on the one hand, makes it normally-closed contact J1 and disconnects rapidly, and power supply charges to capacitor C 1 by diode D2, resistance R 2 on the other hand.Capacitor C 2 is filter capacitors, guarantees relay normally-closed contact stable disconnection when operate as normal.This moment, thyristor BT can not conducting because grid does not have trigger voltage.When pressing stop button TA or power cut-off, relay J quits work, and it is closed that its normally-closed contact recovers, and the electric charge that fills on the capacitor C 1 this moment provides the forward trigger voltage for the grid of thyristor BT by resistance R 1, makes it conducting.Therefore, capacitor C 1 is discharged by contactor auxilliary contact JC1, solenoid JC, thyristor BT, oppositely switches on promptly for solenoid JC, thereby produces contrary magnetic, and contactor is disconnected rapidly, quits work.Thereby guarantee staff and maintenance personal's safety.
The advantage of the contrary magnetic AC/DC contactor of the utility model is high energy-conservation, and solenoid and contact life-span can improve greatly.
Claims (2)
1, a kind of contrary magnetic AC/DC contactor, it comprises shell, main contacts, auxiliary contact, the moving iron core (1) of disconnected I shape, spring (2), disconnected I shape static iron core (5), solenoid (3, JC) etc., it is characterized in that: below solenoid (3), be with an annular permanent magnet (4) on the disconnected I shape static iron core (5); In above-mentioned shell, be provided with control above-mentioned solenoid (JC) forward and reverse alive circuit; This circuit is made up of major loop and power-off control circuit.
2,, it is characterized in that said major loop is in series by stop button (TA), start button (QA), diode (D1) and solenoid (JC) according to the contrary magnetic AC/DC contactor of claim 1; Power-off control circuit comprises first series arm of being made up of diode (D3), resistance (R3) and relay (J), by second series arm that diode (D2), resistance (R2) and electric capacity (C1) are formed, be connected across thyristor (BT) and grid circuit (R1, J1) thereof between the major loop and second series arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231001 CN2128774Y (en) | 1992-08-22 | 1992-08-22 | Reverse magnetic AC/DC contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92231001 CN2128774Y (en) | 1992-08-22 | 1992-08-22 | Reverse magnetic AC/DC contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2128774Y true CN2128774Y (en) | 1993-03-24 |
Family
ID=33773963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92231001 Expired - Fee Related CN2128774Y (en) | 1992-08-22 | 1992-08-22 | Reverse magnetic AC/DC contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2128774Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050001C (en) * | 1994-04-21 | 2000-03-01 | 施内德电气公司 | Current signal correction process and device |
-
1992
- 1992-08-22 CN CN 92231001 patent/CN2128774Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1050001C (en) * | 1994-04-21 | 2000-03-01 | 施内德电气公司 | Current signal correction process and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model |
Correction item: Designer Correct: Liu Rubing|Huang Baohua|Fan Heng|Yuan Jianguo|Guo Jingzhuang False: Liu Rubing|Huang Baohua|Fan Yuan|Yuan Jianguo|Guo Jingzhuang Page: 1 |
|
| CU03 | Publication of corrected utility model |
Correction item: Designer Correct: Liu Rubing|Huang Baohua|Fan Heng|Yuan Jianguo|Guo Jingzhuang False: Liu Rubing|Huang Baohua|Fan Yuan|Yuan Jianguo|Guo Jingzhuang Number: 12 Page: 112 Volume: 9 |
|
| ERR | Gazette correction |
Free format text: CORRECT: DESIGNER; FROM: LIU RUBING HUANG BAOHUA FAN YUAN YUAN JIANGUO GUO JINGZHUANG TO: LIU RUBING HUANG BAOHUA FAN HENG YUAN JIANGUO GUO JINGZHUANG |
|
| 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 |