The permanent magnet mechanism switch
Technical field
The utility model relates to electricity consumption distribution field, is specifically related to a kind of permanent magnet mechanism switch.
Background technology
Existing on-load voltage regulating switch complex structure, volume is bigger, and cost is higher, with what use on the common 10kV/0.4kV distribution transformer is example, an end is fixed with motor on the base, the cage that other end picture is put sidewards, in have rotating shaft to link to each other with motor, if 3 grades of pressure regulation, just have 3 to thoroughly do away with the horizontal fillet of edge on the cage, circumferentially, have three on the every bar and decide contact, receive on the tap of same gear of high pressure three-phase coil, rotating shaft is the neutral point of three-phase.Be fixed with three moving contacts of three-phase in the rotating shaft, each moving contact comprises a main contact and an auxiliary contact, main contact connects mutually with rotating shaft, be connected to transition resistance between the major-minor contact, when pressure regulation conversion tap, utilize transition resistance to constitute bridge joint between adjacent two taps, load current can be interrupted, and the electric current of restriction bridge circuit, electric arc extinguishes easily when making the main contact disengaging decide contact.And this kind tap changer costs an arm and a leg, and should not promote in 10kV distribution occasion large tracts of land.
And non-excitation pressure adjustment (No-load changer) though the switch cost is lower owing to there are some inadequate natural endowments: the one, must under transformer does not have excited state, operate, need certain interruption duration to adjust, disturbed ordinary production; The 2nd, manual operation, it is restricted to adjust number of times, only can do stage or seasonal adjustment, can not often carry out, and uncontrollable every day, the electric weight peak valley changed caused voltage fluctuation, and Gong Dian continuity and reliability also can't well be guaranteed simultaneously.
The utility model content
At the demand, the technical problem of solution of the present utility model is, provides a kind of overall structure simple, and drive disk assembly is few, reliable in action and energy-conservation permanent magnet mechanism switch.Permanent magnet mechanism switch described in the utility model of many uses not only can be used as tap changer and uses, and also can be used as switched capacitor and uses, and also can be used as change-over circuit and uses.It both can use separately, but also one-tenth capable of being combined is organized the switch use more.
The technical scheme of permanent magnet mechanism switch of the present utility model is as follows.
Permanent magnet mechanism switch of the present utility model comprises permanent-magnet electromagnetic operating means, plate-like switch, dividing plate and travel control switch, described permanent-magnet electromagnetic operating means is arranged on the top of described dividing plate, described plate-like switch is arranged on described dividing plate below, described plate-like switch is connected by transmission mechanism with an end of permanent-magnet electromagnetic operating means, and the other end of described permanent-magnet electromagnetic operating means is connected with travel control switch.
Wherein, both can be used as tap changer and used, and also can be used as switched capacitor and use, and also can be used as change-over circuit and use.
Wherein, both can use separately, one-tenth also capable of being combined is organized switch more and is used.
Wherein, described permanent-magnet electromagnetic operating means comprises fixing back-up ring and is positioned at the closing coil of described fixedly back-up ring, switching winding, static iron core, moving iron core and permanent magnet, described moving iron core is positioned at the middle part of described fixedly back-up ring, the two ends of described moving iron core are wound with closing coil and switching winding respectively, described static iron core is around moving iron core symmetric arrays, and described permanent magnet is positioned at the centre of described switching winding of described moving core exterior surface and described closing coil.
Wherein, also comprise first drive link, second drive link, gear frame, first driver plate, second driver plate, the two ends of described first drive link are connected with the moving iron core and the gear frame of permanent-magnet electromagnetic operating means respectively, the two ends of described second drive link are connected with the moving iron core and the travel control switch of permanent-magnet electromagnetic operating means respectively, described gear frame is connected with the middle part of described first driver plate, the two ends of described first driver plate connect respectively at an end of the described transmission mechanism and second driver plate, and the other end of described second driver plate is connected with described plate-like switch.
Wherein, be connected with the gear frame outer surface of an end of described first drive link is provided with spring.
Wherein, be connected with the described travel control switch outer surface of an end of described second drive link is provided with spring.
Wherein, the closing coil of described permanent-magnet electromagnetic operating means and switching winding are connected in series.
The beneficial effects of the utility model are as follows.
The utility model adopts the push-pull electromagnet structure that starting current is reduced greatly, has enlarged the range of application of permanent magnet mechanism switch; Simplify accumulator, greatly reduced cost; Positive anti-magnetic acts on simultaneously, has improved the reliability of action greatly, has shortened operate time greatly; The on/off switch coil is only charged in switch on/off switch moment, remains on the on/off switch position by permanent magnet at ordinary times, greatly reduces the loss of coil to electric energy.Simultaneously, the utility model is simple in structure, combined and instant, and applied range can use separately, and one-tenth also capable of being combined is organized switch more and is used, and not only can be used as tap changer and uses, and also can be used as switched capacitor and uses, and can be used as change-over circuit again and uses.Greatly facilitate user's type selecting, saved cost.
Description of drawings
Fig. 1 represents the utility model front view;
Fig. 2 represents the utility model vertical view;
Fig. 3 represents permanent-magnet electromagnetic operating means profile of the present utility model;
Fig. 4 represents a kind of user mode reference diagram of the present utility model.
Wherein, 1 travel control switch; 2 permanent-magnet electromagnetic operating means; 3 transmission mechanisms; 4 dish type switches; 5 springs; 6 first drive links; 7 closing coils; 8 permanent magnets; 9 static iron cores; 10 moving iron cores; 11 switching windings; 12 gear frames; 13 first driver plates; 14 second driver plates; 15 second drive links; 16 insulated supports; 17 fixing back-up rings.
Embodiment
Below in conjunction with accompanying drawing permanent magnet mechanism switch of the present utility model is further specified.
Shown in accompanying drawing 1-2, comprise permanent-magnet electromagnetic operating means 2, plate-like switch 4, dividing plate and travel control switch 1 according to a kind of permanent magnet mechanism switch of the present utility model, described permanent-magnet electromagnetic operating means 2 is arranged on the top of described dividing plate, described plate-like switch 4 is arranged on described dividing plate below, described plate-like switch 4 is connected by drive mechanism 3 with an end of permanent-magnet electromagnetic operating means 2, and the other end of described permanent-magnet electromagnetic operating means 2 is connected with travel control switch 1.Transmission mechanism 3 parts also comprise first drive link 6, second drive link 15, gear frame 12, first driver plate 13, second driver plate 14, the two ends of described first drive link 6 connect respectively at the moving iron core 10 and the gear frame 12 of permanent-magnet electromagnetic operating means 2, the two ends of described second drive link 15 are connected with the moving iron core 10 and the travel control switch 1 of permanent-magnet electromagnetic operating means 2 respectively, described gear frame 12 is connected with the middle part of described first driver plate 13, the two ends of described first driver plate 13 connect respectively at an end of the described transmission mechanism 3 and second driver plate 14, and the other end of described second driver plate 14 is connected with described plate-like switch 4.Be connected with gear frame 12 outer surface of an end of described first drive link 6 is provided with spring 5.Be connected with described travel control switch 1 outer surface of an end of described second drive link 15 is provided with spring 5.
The concrete structure of permanent-magnet electromagnetic operating means 2 of the present utility model as shown in Figure 3, described permanent-magnet electromagnetic operating means comprises fixedly back-up ring 17, and the closing coil 7 that is positioned at described fixedly back-up ring 17, switching winding 11, static iron core 9, moving iron core 10 and permanent magnet 8, described moving iron core 10 is positioned at the middle part of described fixedly back-up ring 17, the two ends of described moving iron core 10 are wound with closing coil 7 and switching winding 11 respectively, described static iron core 9 is around moving iron core 10 symmetric arrays, and described permanent magnet 8 is positioned at the centre of described switching winding 7 of described moving iron core 10 outer surfaces and described closing coil 11.Moving iron core 10 is provided with first drive link 6 and second drive link 15, the on/off switch coil of electromagnet (7,11) draw respectively pair of DC+, the DC-line, so that on/off switch (7,11) power supply to be provided respectively, with the DC-of the DC+ of closing coil 7 and switching winding 11 be connected together (closing coil 7 that is the permanent-magnet electromagnetic operating means is connected in series with switching winding 11).Its operation principle is, during work, feed forward dc by all the other two lead-in wires DC+, DC-, on/off switch coil (7,11) is simultaneously charged, switching winding 11 sides produce the moving iron core of positive magnetic attraction to switching winding 11 side shiftings, closing coil 7 produces anti-magnetic and promotes moving iron core 10 to switching winding 11 side shiftings simultaneously, and this is the separating brake process; When separating brake is finished, coil blackout, moving iron core 10 remains on the separating brake position by permanent magnet 8.When feeding reverse direct current by all the other two lead-in wires DC+, DC-, the on/off switch coil is simultaneously charged, switching winding 11 sides produce anti-magnetic and promote moving iron core to closing coil 7 side shiftings, and closing coil 7 produces the moving iron core 10 of positive magnetic attraction to closing coil 7 side shiftings simultaneously, and this is a making process; When combined floodgate is finished, coil blackout, moving iron core 10 remains on closing position by permanent magnet 8.Be installed with the tripping force that buffer spring 5, can improve electromagnet at the two ends of drive link 6, when two available buffer on/off switch put in place to the impulsive force of contact, thereby move the folding of control switch by what adjust permanent-magnet electromagnetic operating means 2.
Permanent magnet mechanism switch of the present utility model can be used as tap changer and uses when using separately, can be used as switched capacitor again and use, and also can be used as change-over circuit and uses.Permanent magnet mechanism switch of the present utility model is wherein a kind of to be used in combination mode as shown in Figure 4, two playscript with stage directions utility model permanent magnet mechanism switches by insulated support 16 simple combination together, double switch can become one, terminal with compact integral structure, volume is little, insert transformer inside and use as tap changer, can realize three kinds of gear voltage-regulation, cost reduces greatly.
The above only is a preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.