CN201063317Y - Instable equilibrium type high-efficiency contactor - Google Patents
Instable equilibrium type high-efficiency contactor Download PDFInfo
- Publication number
- CN201063317Y CN201063317Y CNU2006200779948U CN200620077994U CN201063317Y CN 201063317 Y CN201063317 Y CN 201063317Y CN U2006200779948 U CNU2006200779948 U CN U2006200779948U CN 200620077994 U CN200620077994 U CN 200620077994U CN 201063317 Y CN201063317 Y CN 201063317Y
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- connecting rod
- winding
- contact
- pull
- iron core
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Abstract
The utility model relates to an unstable balanced high-efficient contactor which is a relay type energy-saving control switch. The utility model comprises a contact on-off guide mechanism, a connecting rod stabilization and balancing mechanism, a power supply changeover mechanism and an electromagnetic driving mechanism, wherein, the contact on-off mechanism comprises a dynamic contact, a static contact and a guide pull rod; the connecting rod stabilization and balancing mechanism comprises a compacting connecting rod, a balancing connecting rod and a retaining pull rod; the power supply changeover mechanism comprises a rectifying element, a filtering capacitor and a changeover switch; the electromagnetic driving mechanism comprises an operating coil, an armature, a retaining coil, a retaining moving iron core and a retaining armature, a return spring is arranged in the retaining moving iron core; in the connecting rod balancing mechanism, the compacting connecting rod is hinged with the guide pull rod of the dynamic contact through the balancing connecting rod and is connected with the retaining moving iron core by balancing the retaining pull rod. The maintenance pressure of mechanical balance and the electromagnetic driving forces are separately controlled, so the pull-in contact force is bigger and the power consumption used to maintain the contact pressure of the contactor is smaller, thereby rationally solving the contradiction between the increase of the contact pressure of the contact and the decrease of the power consumption.
Description
Technical field
The utility model relates to the efficient contactor of a kind of unstable equilibrium formula, is the Energy Saving Control switch of relay-type, belongs to the distribution articles for use.
Figure viewed from behind technology
The general big load control switch of low speed divides two classes, be contactless controllable silicon semiconductor switch and the contactor (a kind of powerful relay) that the contact is arranged, wherein controllable silicon (non-contact type) overload performance is not good, not anti-rush of current, thermally-stabilised poor, thereby radiating condition had relatively high expectations, therefore, for powerful control or the bigger circuit of impulse current, adopt the contactor that the contact is arranged usually.
Though traditional contactor overload capacity is good, anti-rush of current, Heat stability is good, power consumption is big, and along with the increasing of power controlling, its power consumption also strengthens, so the heat that produces is more, heat radiation is had certain requirement.In order to reduce power consumption, contactor needs the electric current of control by pull-in winding when work, and when electric current was too small, because the suction-combining force is big inadequately, the contact pressure of contact reduced, and can cause loose contact.Usually contactor need strengthen contact area and adopt conduction fine, the material that impedance is little, but the fundamental contradiction between contact force and the power consumption do not solve, and with the increase of operating time and number of times, contact contact surface ablation oxidation, after ducting capacity descended gradually, the contact can generate heat, and increased unnecessary power consumption, and make the undertension that is added in the power consumption equipment two ends, influence efficient, the safety of equipment, so need time-based maintenance, access times are not a lot of reliably.
Summary of the invention
The purpose of this utility model provides the efficient contactor of a kind of unstable equilibrium formula, and by machinery, the appropriate design of electrical structure increases contact contact pressure and conductive capability effectively, solves and the big problem of contactor power consumption.
The purpose of this utility model provides the efficient contactor of a kind of unstable equilibrium formula, has reasonably solved the contradiction between contact contact pressure increase and the power consumption reduction.
This efficient contactor contains guiding mechanism, connecting rod unstable equilibrium mechanism, power source conversion mechanism and the electromagnetic drive mechanism of contact break-make, the guiding mechanism of contact break-make comprises moving contact, fixed contact and guiding pull bar, compresses connecting rod, balanced connecting rod and maintenance pull bar in the connecting rod unstable equilibrium mechanism; Power source conversion mechanism comprises rectifier cell, filter capacitor and change over switch; Electromagnetic drive mechanism has pull-in winding, armature, hold-in winding, the moving iron core of maintenance, holding armature; Keep being provided with return spring in the moving iron core.In the uneven mechanism of connecting rod, it is hinged by balanced connecting rod and moving contact guiding pull bar to compress connecting rod, and keeps pull bar to join with keeping moving iron core by balance; The parallel connection of electromagnetic drive mechanism pull-in winding, conducting or by by change over switch control, the rectifier cell of power source conversion mechanism is in parallel with filter capacitor pull-in winding and hold-in winding.
Said moving contact guiding pull bar is an insulated tension pole, is connected with the moving core insulation of adhesive, and moving contact is fixed on the guiding pull bar by the pre-compressed spring plate, and said maintenance pull bar is positioned on the extended line of fixing point and fulcrum with the swivel pin that compresses connecting rod; Pull-in winding contains return spring, and change over switch is contained on the hold-in winding.
Said pull-in winding, hold-in winding are twin coil system, and adhesive armature and holding armature are fixed on the base, keep moving iron core movable by built-in return spring, compress small end and are fixed on and cover.
The guiding pull bar links to each other the moving iron core of adhesive with moving contact, keep pull bar will compress connecting rod and link to each other with keeping moving iron core; Balanced connecting rod will compress connecting rod and link to each other both interlocks with the guiding pull bar; Pull-in winding directly links to each other with rectifier cell, electric capacity, and by the change over switch control that is linked between two coils.The power supply rotation mechanism converts 220 volts alternating current to direct current through capacitor filtering by rectifier cell, form galvanic current and offer the pull-in winding hold-in winding, can make the magnetic field of generation reach bigger more stable, the magnetic field that pull-in winding produces makes return spring become the part of magnetic conductor when being magnetized, elasticity reduces, pull-in winding will move iron core when producing magnetic field and attract downwards, it is descending to drive the guiding pull bar, make hold-in winding produce attraction too, make and keep moving iron core by keeping pull bar, compress connecting rod, balanced connecting rod assists the guiding pull bar that moving contact is engaged to fixed contact, after the abundant mutually combination in contact, compressing the nearly straight line of connecting rod and balance link rob overlaps, because being subjected to the elastic force of return spring, balanced connecting rod makes progress, promptly two connecting rods enter the unstable equilibrium state, this moment, change over switch disconnected the pull-in winding loop, keeping the hold-in winding electric current continues, keep moving iron core by keeping pull bar, will compress connecting rod, balancing pull rod, maintain the unstable equilibrium state that straight line overlaps.This moment, change over switch disconnected the pull-in winding loop, kept the hold-in winding electric current and continued, and kept moving iron core by keeping pull bar, will compress connecting rod, balancing pull rod, maintain the unstable equilibrium state that straight line overlaps.
When needs disconnecting consumers power supply, can cut off 220 volts of AC power of contactor, then hold-in winding disappears to keeping moving iron core to produce suction.Under the very weak elastic force effect of change over switch, by keeping pull bar, the balance that compresses connecting rod and balanced connecting rod is destroyed, because magnetic field disappears, the elastic return of return spring, the moving iron core of adhesive moves up rapidly under the common elastic force effect of return spring and contact preloading spring, pushes moving contact open, and load circuit disconnects.
During contactor energising work, pull-in winding and hold-in winding will move iron core simultaneously and drive, after drive pressure is close to bar deflection engage contacts when driving engage contacts, compress connecting rod and balanced connecting rod and form unstable equilibrium, this moment, change over switch disconnected the pull-in winding loop, only keep the hold-in winding conducting, balance is kept, because return elastic force is compressing the fixing point of connecting rod by balanced connecting rod with linear function, so it is all very little to keep the force and work consumption of balance, after the contactor outage, the elasticity of change over switch is destroyed balance, and the contact is discharged the disconnecting consumers power supply.This contactor is kept the separately control of pressure and electromagnetic actuation force with machinery to balance, and the adhesive contact force is big and energy consumption is low.
The characteristic structure of this efficient contactor is to keep pressure and the separately control of big or small electromagnetic actuation force with mechanical balance, make its adhesive contact force bigger, and the power consumption of keeping contacts of contactor pressure is littler, has reasonably solved the contradiction between contact contact pressure increase and the power consumption reduction.
Description of drawings
Fig. 1 is the enforcement structural representation of the efficient contactor of unstable equilibrium formula.
Fig. 2 is that the Z of the efficient contactor Fig. 1 of unstable equilibrium formula is to structural representation.
Fig. 3 is that the T of the efficient contactor Fig. 1 of unstable equilibrium formula is to structural representation.
Fig. 4 is efficient contactor hold-in winding of unstable equilibrium formula and change over switch schematic diagram.
Fig. 5 is the efficient contactor pull-in winding of unstable equilibrium formula and four spring structure sketches.
1.-4. Fig. 6 by representing connecting rod and unstable equilibrium mechanism course of work schematic diagram.
Fig. 7 is the efficient contactor pull-in winding of unstable equilibrium formula, hold-in winding and working power change-over circuit schematic diagram.
Each number in the figure is expressed as follows parts: 1-loam cake, body among the 2-, 3-base, the 4-moving contact, 5-fixed contact, 6-rectifier cell, the 7-capacitor, the 8-balance keeps pull bar, and 9-latch plate, 10-keep moving iron core, the 11-change over switch, the 12-lead, iron core, 14-pull-in winding are moved in the 13-adhesive, the 15-hold-in winding, 16-compresses the connecting rod alignment pin, and 17-compresses connecting rod and balanced connecting rod hinging pin shaft, and 18-compresses connecting rod and keeps the pull bar hinging pin shaft, 19-moving contact pre-compressed spring plate and guiding pull bar fixed pin shaft, 20-guiding pull bar and balanced connecting rod hinging pin shaft, 21-moving contact guiding pull bar, 22-compresses connecting rod, 23,-balanced connecting rod, the 24-holding armature, 25-adhesive armature, 26-return spring.
Embodiment
Shown in Fig. 1～5, moving contact 4 is fixed on the moving iron core 13 by 21 insulation of moving contact guiding pull bar.Moving contact guiding pull bar 21 is hinged by hinging pin shaft 20 and balanced connecting rod 23.Balanced connecting rod 23 by hinging pin shaft 17 with to compress connecting rod 22 hinged; Balance keeps pull bar 8 and keeps moving iron core 10 to be connected, and by hinging pin shaft 18 and to compress connecting rod 22 hinged; Pull-in winding 14 is pressed on adhesive armature 25 on the base 3; Change over switch 11 is housed on the holding armature 24, and hold-in winding 15 is pressed on the base 3; Electric capacity 7 is fixed on the base 3 with rectifier cell 6; Fixed contact 5 is fixed on the middle body 2; Compressing connecting rod 22 is contained on the loam cake 1 by compressing connecting rod alignment pin 16.As shown in Figure 7, when 2 of circuit a, b connect the 220V AC power, change over switch 11 is a closure state, and alternating current is through rectifier cell 6 rectifications, and electric capacity 7 is with the labile element filtering, form galvanic current at pull-in winding 14 and hold-in winding 15 two ends, so pull-in winding 14 produces powerful magnetic field, the moving iron core 13 of adhesive is attracted downwards, be magnetized owing to return spring 26 simultaneously, become magnetic conductor, its elasticity weakens.The magnetic field that hold-in winding 15 produces will keep moving iron core 10 to attract to coil inside, drive balance maintenance pull bar 8 will compress connecting rod 22 and drag, by balanced connecting rod 23 assist pull-in windings 14 with the moving iron core 13 of adhesive to pressing down, its course of action as among Fig. 6 1.-4. shown in.As moving contact guiding pull bar O
4-O
5(being parts 21) direction shown in arrow when motion in figure, balanced connecting rod O
2-O
5(promptly 23) drives and compresses connecting rod O
1-O
2(promptly 22) is around O
1(promptly compressing connecting rod alignment pin 16) deflection is because guiding pull bar O
4-O
5The resilience force that (promptly 21) is subjected to return spring 26 makes progress all the time, in going to Fig. 6, during 4. position, then reach the unstable equilibrium state, this moment moving contact 4 with fixed contact 5 closures, change over switch 11 disconnects the loop of pull-in winding 14, and the active force of return spring 26 is by balanced connecting rod O
2-O
5(promptly 23) compresses connecting rod O
1-O
2(promptly 22) acts on and compresses connecting rod alignment pin 16 points, then do not need hold-in winding 15 and pull-in winding 14 that downward active force is provided, and only needs hold-in winding 15 with minimum attraction balance to be maintained just.
When need disconnecting consumers power supply, cut off the 220V AC power and get final product.Rectification output end does not provide voltage to electric capacity 7, i.e. hold-in winding 15 dead electricity.Discharge and keep moving iron core 10.As Fig. 4, when keeping moving 10 pairs of change over switches 11 of iron core not have pressure, the return pressure of change over switch 11 makes and keeps moving iron core 10 to move backward, promoting balance keeps pull bar 8 drives to compress connecting rod 22, balanced connecting rod 23 destroys balance, and return spring 26 is restored at the situation down spring that loses magnetic field, the moving iron core 13 of adhesive moves up rapidly under the elastic force acting in conjunction of the elastic force of return spring 26 and contact spring plate 9, moving contact 4 is discharged make the load power source disconnection.
Only need to guarantee the elasticity of return spring 26 in this efficient contactor, if lose the 220V power supply, then the Be Controlled circuit can not conducting.
Claims (4)
1. the efficient contactor of unstable equilibrium formula, the guiding mechanism, connecting rod unstable equilibrium mechanism and power source conversion mechanism and the electromagnetic drive mechanism that contain the contact break-make is characterized in that the guiding mechanism of contact break-make comprises moving contact (4), fixed contact (5) and guiding pull bar (21); Contain in the connecting rod unstable equilibrium mechanism and compress connecting rod (22), balanced connecting rod (23) and keep pull bar (8); Power source conversion mechanism comprises rectifier cell (6), filter capacitor (7) and lead (12) and change over switch (11); Electromagnetic drive mechanism has pull-in winding (14), armature (25), hold-in winding (15), keeps moving iron core (10) and holding armature (24); Keep being provided with return spring in the moving iron core (10); In the connecting rod balanced controls, it is hinged with the guiding pull bar (21) of moving contact (4) by balanced connecting rod (23) to compress connecting rod (22), and keeps pull bar (8) to join with keeping moving iron core (10) by balance; The parallel connection of electromagnetic drive mechanism pull-in winding, conducting or by by change over switch (11) control, the rectifier cell of power source conversion mechanism (6) is in parallel with filter capacitor (7) pull-in winding (14) and hold-in winding (15).
2. the efficient contactor of unstable equilibrium formula according to claim 1, it is characterized in that moving contact guiding pull bar (21) is insulated tension pole, be connected with moving iron core (13) insulation of adhesive, moving contact (4) is fixed on the moving contact guiding pull bar (21) by pre-compressed spring plate (9), keeps pull bar and the swivel pin (18) that compresses connecting rod to be positioned on the extended line of fixing point and fulcrum; Pull-in winding (14) contains return spring (26), and change over switch (11) is housed on the hold-in winding (15).
3. the efficient contactor of unstable equilibrium formula according to claim 1 and 2, it is characterized in that pull-in winding (14), hold-in winding (15) are twin coil system, armature (25) and armature (24) are fixed on the base (3), keep moving iron core (10) movable, compress connecting rod (22) upper end and be fixed on the loam cake (1) by built-in return spring.
4. the efficient contactor of unstable equilibrium formula according to claim 3 is characterized in that pull-in winding and hold-in winding operating state are separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200779948U CN201063317Y (en) | 2006-09-19 | 2006-09-19 | Instable equilibrium type high-efficiency contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200779948U CN201063317Y (en) | 2006-09-19 | 2006-09-19 | Instable equilibrium type high-efficiency contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063317Y true CN201063317Y (en) | 2008-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200779948U Expired - Fee Related CN201063317Y (en) | 2006-09-19 | 2006-09-19 | Instable equilibrium type high-efficiency contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063317Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681119A (en) * | 2012-09-20 | 2014-03-26 | 昆山维安盛电子有限公司 | Contactor |
| CN111052288A (en) * | 2017-08-21 | 2020-04-21 | 三菱电机株式会社 | Circuit breaker |
-
2006
- 2006-09-19 CN CNU2006200779948U patent/CN201063317Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681119A (en) * | 2012-09-20 | 2014-03-26 | 昆山维安盛电子有限公司 | Contactor |
| CN111052288A (en) * | 2017-08-21 | 2020-04-21 | 三菱电机株式会社 | Circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |