CN204732353U - A kind of mechanical lock-type energy saving ac contactor - Google Patents
A kind of mechanical lock-type energy saving ac contactor Download PDFInfo
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- CN204732353U CN204732353U CN201520491477.4U CN201520491477U CN204732353U CN 204732353 U CN204732353 U CN 204732353U CN 201520491477 U CN201520491477 U CN 201520491477U CN 204732353 U CN204732353 U CN 204732353U
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- contactor
- control circuit
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- core
- lock pin
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Abstract
A kind of mechanical lock-type energy saving ac contactor, A.C. contactor also comprises mechanical lock-type mechanism, release and control circuit; Mechanical lock-type mechanism comprises the locking bar and lock pin that are fixed on dynamic core center, and the center of fixed core is longitudinally provided with locking bar groove, and the inner transverse of fixed core is provided with lock pin groove, and locking bar groove is communicated with in axes intersect place with lock pin groove; One end of lock pin is connected with one end of holddown spring, and the other end of lock pin to insert in described lock pin groove and is fixed on the release of fixed core outside by the other end with holddown spring by connecting rod; Control circuit comprises release control circuit and contactor control circuit, and trip coil is connected into release control circuit, and contactor coil is connected into contactor control circuit.The utility model does not need by maintaining contactor coil continued power, effectively saves the problem that electric energy alleviates contactor coil heating simultaneously.As long as fixed core and dynamic iron core select permeability magnetic material, thus reduce the cost of manufacture of contactor.
Description
Technical field
The utility model relates to electrical control accessory, especially a kind of mechanical lock-type energy saving ac contactor.
Background technology
In electric control system, need a large amount of A.C. contactors to complete electrical control.Existing A.C. contactor is mainly through carrying out lasting energising to maintain probe of contactor portion operationally attracting state to the coil be wrapped on fixed core, in a large control system, the maintenance electric current of contactor adds up is very large, and this is a kind of waste in control system work.And continue to be energized to coil easily to make contactor coil generate heat, have impact on the useful life of contactor.
Summary of the invention
The purpose of this utility model is to provide simple, the effective energy-conservation electric energy of a kind of structure, effectively alleviates the mechanical lock-type energy saving ac contactor of contactor coil fever phenomenon.
The utility model solves the technical scheme that prior art problem adopts: a kind of mechanical lock-type energy saving ac contactor, comprise the electromagnetic mechanism be made up of with the dynamic iron core of the side of being located thereon fixed core in housing, described fixed core is surrounded with contactor coil, and the top of dynamic iron core is fixed with the contact part for being switched on or switched off motor circuit; Described A.C. contactor also comprises mechanical lock-type mechanism, release and control circuit; Described mechanical lock-type mechanism comprises the locking bar being fixed on described dynamic core center and the lock pin be located in fixed core, the center of described fixed core is longitudinally provided with locking bar groove, the inner transverse of fixed core is provided with lock pin groove, described locking bar groove is communicated with in axes intersect place with lock pin groove, and described locking bar is provided with annular lock groove at the keyed end place corresponding with lock pin; One end of described lock pin is connected with one end of holddown spring, and the other end of lock pin to be inserted in described lock pin groove and is fixed on by connecting rod on the release of fixed core outside by the other end of holddown spring; Described control circuit comprises release control circuit and contactor control circuit, and the trip coil in described release is connected into release control circuit, and described contactor coil is connected into contactor control circuit; Move and be provided with back-moving spring between iron core and fixed core, the upper end of back-moving spring is fixed on dynamic iron core, and its lower end abutment is on the top of contactor coil.
Described release control circuit comprises the accumulator in parallel with release and transistor circuit; Described contactor control circuit comprises the travel switch and triode that contact with the contact part of contactor and connect, and the base stage of triode is connected with the output of described travel switch, and the collector electrode of described triode is connected with described contactor coil; Described release control circuit and contactor control circuit provide power supply by diode rectifier bridge.
Described A.C. contactor also comprises power-off anti-locking mechanism, comprise the U-shaped spring be individually fixed on described fixed core center position parallel side wall and the magnetic conduction compressing tablet being placed in described dynamic core center, the end face at described fixed core center is provided with the anti-locking shell fragment be parallel to each other, and the two ends of anti-locking shell fragment are individually fixed in the open end points of correspondence of described U-shaped spring; Described magnetic conduction compressing tablet is the hollow block that both sides are provided with dovetail groove, and the center of described magnetic conduction compressing tablet is through described locking bar and by the end points of the dovetail angular alignment anti-locking shell fragment of dovetail groove; The center of described dynamic iron core is provided with groove, and the upper end of magnetic conduction compressing tablet is through the concave part moving core center.
The end of described locking bar is round.
Described fixed core and dynamic iron core are the E shape iron core that permeability magnetic material is made.
The beneficial effects of the utility model are: the utility model by setting up mechanical lock mechanism, release and control circuit on the basis of existing contactor construction, contactor is made to utilize mechanical lock to maintain the attracting state of contact part after energising adhesive, and do not need by maintaining contactor coil continued power, effectively save the problem that electric energy alleviates contactor coil heating simultaneously; And by the unblock that the startup of power-off Time Controller to release realizes mechanical lock mechanism, iron core is separated with fixed core.Owing to not needing to continue energising to contactor coil, make contactor there is not the problem of eddy current, as long as therefore fixed core and dynamic iron core select permeability magnetic material, thus reduce the cost of manufacture of contactor.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of mechanical lock mechanism of the present utility model and release.
Fig. 3 is the structural representation of anti-locking mechanism of the present utility model.
Fig. 4 is the circuit theory diagrams of control circuit of the present utility model.
In figure: 1-housing, 2-fixed core, 3-move iron core, 4-contactor coil, 5-contact part, 6-locking bar, 7-lock pin, 8-holddown spring, 9-connecting rod, 10-release, 11-depression bar, 12-trip coil, 13-armature, 14-dynamic pressure plate, 15-U shape spring, 16-magnetic conduction compressing tablet, 17-anti-locking shell fragment, 18-back-moving spring, 19-annular lock groove.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described:
Fig. 1 is the overall structure schematic diagram of a kind of mechanical lock-type energy saving ac contactor of the utility model.A kind of mechanical lock-type energy saving ac contactor, comprise the electromagnetic mechanism be made up of with the dynamic iron core 3 of " E " shape of the side of being located thereon the fixed core 2 of " E " shape in housing 1, fixed core 2 is surrounded with the contactor coil 4 be connected with contactor control circuit, the top of dynamic iron core 3 is fixed with the contact part 5 for being switched on or switched off motor circuit; It also comprises mechanical lock-type mechanism, release and control circuit.
As shown in Figure 2, mechanical lock-type mechanism comprises the locking bar 6 and lock pin 7 that are fixed on dynamic iron core 3 center, the center of fixed core 2 is longitudinally provided with locking bar groove, the inner transverse of fixed core is provided with lock pin groove, and locking bar groove is communicated with in axes intersect place with lock pin groove, described locking bar 6 is provided with annular lock groove 19 at the keyed end place corresponding with lock pin 7, and insert smoothly for ease of mechanical lock mechanism locking hour locking lever 6 pairs of lock pins 7, the end of locking bar 6 is preferably round; One end of lock pin 7 is fixedly connected with one end of holddown spring 8, and the other end of lock pin 7 to be inserted in lock pin groove and is fixed on by connecting rod 9 on the depression bar 11 of the release 10 being positioned at fixed core 2 outside by the other end of holddown spring 8; Wherein, as shown in Figure 2, release 10 comprises trip coil 12, the center of trip coil 12 is provided with armature 13, is provided with depression bar 11 at the center of armature 13 along axis, the end of trip coil 12 is hinged with dynamic pressure plate 14 by support, and this dynamic pressure plate 14 is positioned at the outside of depression bar 11.
Fig. 4 is the circuit theory diagrams of control circuit of the present utility model.Control circuit comprises release control circuit and contactor control circuit, and the power connector end of trip coil 12 is connected into release control circuit, and the power connector end of contactor coil 4 is connected into contactor control circuit;
Wherein, be respectively release control circuit and contactor control circuit provides power supply in control circuit by two diode rectifier bridge D1*4, D2*4 parallel with one another, in circuit diagram, C represents contactor coil, and J represents trip coil; Release control circuit comprises the accumulator C1(and electric capacity that are in parallel with release J) and the transistor circuit that forms of triode T1, T3 and resistance R2, R3; Release J is connected with the collector electrode of triode T1, and the emitter of triode T1 is connected with resistance R3, and the base stage of triode T1 is connected with the collector electrode of triode T3, and the emitter of triode T3 is connected with the sys node of resistance R2 and R3; In the base stage access contactor control circuit of triode T3.Contactor control circuit comprises the travel switch K and triode T2 that to contact with the contact part of contactor and connect, the base stage of triode T2 is connected with the output of travel switch K, when installing stroke K switch, when the non-adhesive of the main contactor of the contact part 5 of contactor, travel switch K is in NC state; When main contactor adhesive, travel switch K is in NO state; The collector electrode of triode T2 is connected with contactor.
Fig. 3 is the structural representation of anti-locking mechanism of the present utility model.The setting of anti-locking mechanism mainly under the cold condition of contactor, can not cause mechanical lock mechanism locked in order to make.It comprises the U-shaped spring 15 being individually fixed in both sides, fixed core 2 center and the magnetic conduction compressing tablet 16 be placed between fixed core 2 and dynamic iron core 3.Be provided with the anti-locking shell fragment 17 be parallel to each other at the end face at fixed core 2 center, the two ends of this anti-locking shell fragment 17 are individually fixed in the open end points of correspondence of two U-shaped springs 15; Magnetic conduction compressing tablet 16 is provided with the hollow block of dovetail groove for both sides, and the top of this magnetic conduction compressing tablet 16 is made up of permeability magnetic material, and the dovetail groove portion of bottom is made up of non-magnet material.The center of magnetic conduction compressing tablet 16 is through locking bar 6 and by the end points of the dovetail angular alignment anti-locking shell fragment 17 of dovetail groove; The center of dynamic iron core 3 is provided with the groove for holding anti-locking shell fragment 17, and the upper end of magnetic conduction compressing tablet 16 is through the concave part moving iron core 3 center.Dynamic be provided with back-moving spring 18 between iron core 3 and fixed core 2, the upper end of back-moving spring 18 is fixed on dynamic iron core 3, the top of its lower end abutment contactor coil 4 in fixed core 2, so that move being separated of iron core 3 and fixed core 2 during power-off.
Under the cold condition of contactor, when manual depression moves iron core 3, magnetic conduction compressing tablet 16 is by the space that is between dynamic iron core 3 and fixed core 2, now under the effect of Manual pressure, the dovetail angle of magnetic conduction pad 16 lower end dovetail groove is pressed on the end points of anti-locking shell fragment 17, and anti-locking shell fragment 17 is shifted onto in the Baltimore groove of dynamic iron core 3 to make dovetail angle by manual insufficient pressure, thus make the lower end of magnetic conduction pad 16 be limited in the end face place at fixed core 2 center, thus iron core 3 cannot be fitted with fixed core 2, locking bar 6 is pressed not in place, therefore can not cause by mechanical lock mechanism locked, when iron core 3 dynamic after contactor energising and the effect moment adhesive of fixed core 2 due to electromagnetic force, upper end due to magnetic conduction compressing tablet 16 be permeability magnetic material therefore magnetic conduction compressing tablet 16 move down under the effect of electromagnetic force until contactor coil 4 moment adhesive, now under powerful electromagnetic force, the dovetail angle of magnetic conduction compressing tablet 16 lower end dovetail groove is close thus in Baltimore groove that is dynamic iron core 3 after making two anti-locking shell fragments 17 enter adhesive to center by anti-locking shell fragment 17.Because the width of dovetail groove is slightly larger than the width of fixed core 2.Therefore under the effect of electromagnetic force, dovetail angle will press to the outside of fixed core 2, and namely magnetic conduction compressing tablet 16 will cover on the top of contactor coil 4, with make fixed core 2 and dynamic iron core 3 completely adhesive put in place locking bar 6 and lock pin 7 locked.
Operation principle of the present utility model is as follows:
As shown in Figure 4, when the utility model control circuit general supply is connected, by diode rectifier bridge D1*4, alternating current is converted to direct current and is delivered in release control circuit and contactor control circuit respectively by D2*4, in contactor control circuit, the non-adhesive of contact part due to contactor, now, travel switch K is in NC state, therefore, in contactor control circuit, the branch road at contactor coil C and triode T2 place forms closed circuit, thus the fixed core 2 of contactor is pulled together with dynamic iron core 3, at this moment be arranged in locking bar on dynamic iron core and will insert the locking bar groove of fixed core and locked by the end winding support of lock pin, at this moment the maintenance electric current continuing to maintain contactor work is not obviously needed.So because contact part is in the state of adhesive, cause travel switch K to change to NO state, now the base stage of triode T2 is in ground state, the branch road at contactor coil C place is therefore caused to disconnect.Now, small controller operating current is only needed just can to maintain contactor work.Its electric current is less than 4ma.
For release control circuit part, during energising, constantly charged to accumulator C1 by diode rectifier bridge D1*4, at this moment triode T3 is in saturation conduction state, and triode T1 is in cut-off state, and therefore release does not work.External ac power source is cut off when electrical control end-of-job, at this moment electric energy will be discharged by accumulator C1, trip coil 12 adhesive dynamic pressure plate 14 is driven to promote depression bar 11, depression bar 11 is by connecting rod 9, lock pin 7 is separated in locked groove, effect in conjunction with back-moving spring 18 makes locking bar 6 depart from from locking bar groove, contactor is discharged, end-of-job.
Above content is in conjunction with concrete optimal technical scheme further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. a mechanical lock-type energy saving ac contactor, comprise the electromagnetic mechanism be made up of with the dynamic iron core of the side of being located thereon fixed core in housing, described fixed core is surrounded with contactor coil, and the top of dynamic iron core is fixed with the contact part for being switched on or switched off motor circuit; It is characterized in that, described A.C. contactor also comprises mechanical lock-type mechanism, release and control circuit; Described mechanical lock-type mechanism comprises the locking bar being fixed on described dynamic core center and the lock pin be located in fixed core, the center of described fixed core is longitudinally provided with locking bar groove, the inner transverse of fixed core is provided with lock pin groove, described locking bar groove is communicated with in axes intersect place with lock pin groove, and described locking bar is provided with annular lock groove at the keyed end place corresponding with lock pin; One end of described lock pin is connected with one end of holddown spring, and the other end of lock pin to be inserted in described lock pin groove and is fixed on by connecting rod on the release of fixed core outside by the other end of holddown spring; Described control circuit comprises release control circuit and contactor control circuit, and the trip coil in described release is connected into release control circuit, and described contactor coil is connected into contactor control circuit; Move and be provided with back-moving spring between iron core and fixed core, the upper end of back-moving spring is fixed on dynamic iron core, and its lower end abutment is on the top of contactor coil.
2. a kind of mechanical lock-type energy saving ac contactor according to claim 1, is characterized in that, described release control circuit comprises the accumulator in parallel with release and transistor circuit; Described contactor control circuit comprises the travel switch and triode that contact with the contact part of contactor and connect, and the base stage of triode is connected with the output of described travel switch, and the collector electrode of described triode is connected with described contactor coil; Described release control circuit and contactor control circuit provide power supply by diode rectifier bridge.
3. a kind of mechanical lock-type energy saving ac contactor according to claim 1, it is characterized in that, described A.C. contactor also comprises power-off anti-locking mechanism, comprise the U-shaped spring be individually fixed on described fixed core center position parallel side wall and the magnetic conduction compressing tablet being placed in described dynamic core center, the end face at described fixed core center is provided with the anti-locking shell fragment be parallel to each other, and the two ends of anti-locking shell fragment are individually fixed in the open end points of correspondence of described U-shaped spring; Described magnetic conduction compressing tablet is the hollow block that both sides are provided with dovetail groove, and the center of described magnetic conduction compressing tablet is through described locking bar and by the end points of the dovetail angular alignment anti-locking shell fragment of dovetail groove; The center of described dynamic iron core is provided with groove, and the upper end of magnetic conduction compressing tablet is through the concave part moving core center.
4. a kind of mechanical lock-type energy saving ac contactor according to claim 1, is characterized in that, the end of described locking bar is round.
5. a kind of mechanical lock-type energy saving ac contactor according to claim 1, is characterized in that, described fixed core and dynamic iron core are the E shape iron core that permeability magnetic material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491477.4U CN204732353U (en) | 2015-07-09 | 2015-07-09 | A kind of mechanical lock-type energy saving ac contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520491477.4U CN204732353U (en) | 2015-07-09 | 2015-07-09 | A kind of mechanical lock-type energy saving ac contactor |
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| Publication Number | Publication Date |
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| CN204732353U true CN204732353U (en) | 2015-10-28 |
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| CN201520491477.4U Expired - Fee Related CN204732353U (en) | 2015-07-09 | 2015-07-09 | A kind of mechanical lock-type energy saving ac contactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762023A (en) * | 2016-04-28 | 2016-07-13 | 厦门大学嘉庚学院 | Mechanical self-locking contactor and working method thereof |
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2015
- 2015-07-09 CN CN201520491477.4U patent/CN204732353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762023A (en) * | 2016-04-28 | 2016-07-13 | 厦门大学嘉庚学院 | Mechanical self-locking contactor and working method thereof |
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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: 20151028 Termination date: 20190709 |
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| CF01 | Termination of patent right due to non-payment of annual fee |