CN203931868U - For the electromagnetic operating device of control and protective switch - Google Patents
For the electromagnetic operating device of control and protective switch Download PDFInfo
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- CN203931868U CN203931868U CN201420270451.2U CN201420270451U CN203931868U CN 203931868 U CN203931868 U CN 203931868U CN 201420270451 U CN201420270451 U CN 201420270451U CN 203931868 U CN203931868 U CN 203931868U
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Abstract
A kind of electromagnetic operating device for control and protective switch, comprise electromagnet, thereby can control switch major loop close a floodgate or the transmission mechanism of separating brake with the moving iron core interlock of electromagnet, and power saving lock buckle mechanism, electromagnet adopts the DC electromagnet of small volume, power saving lock buckle mechanism comprises the mechanical lock catch unit being connected between moving iron core and the housing of DC electromagnet, and with the power saving unit of moving iron core interlock, in coil electricity moment, moving iron core moves to static iron core under electromagnetic force, power saving unit control coil power-off after moving iron core moves with moving iron core interlock, and moving iron core move to static iron core adhesive after, lock catch unit acts on moving iron core makes it under coil powering-off state, continue to keep and static iron core adhesive.The control and protective switch coil in the time of work that is arranged so that of power saving lock buckle mechanism needn't be switched on for a long time, and coil can not generate heat, and there is no noise, and mechanical buckle structure has improved job stability and the reliability of switch.
Description
Technical field
The utility model relates to a kind of electromagnetic operating device for control and protective switch, belongs to low voltage electrical apparatus technology field.
Background technology
Control and protective switch; english abbreviation is CPS; it adopts modular single product version; the major functions such as integrated traditional circuit breaker (fuse), contactor, overload (or overcurrent, disconnected phase) protection relay, starter, isolator; there is far distance automatic controlling and direct manpower control function on the spot; there is panel instruction and dynamoelectric signal warning function; there is over-and under-voltage defencive function, also there is the time m-current protection characteristic etc. of disconnected phase default-phase protection function and cooperation.Control and protective switch, from its 26S Proteasome Structure and Function, is no longer the single product such as contactor or circuit breaker or thermal relay, but a set of control protection system.Its appearance has fundamentally solved traditional employing discrete component (normally circuit breaker or fuse+contactor+overload relay) owing to selecting the unreasonable control and protection causing to coordinate irrational variety of problems; particularly overcome owing to adopting while combining between the electric equipment products of different appraisal standards; protective feature coordinates inharmonic phenomenon with control characteristic, greatly improved operational reliability and the continuous runnability of Control and protection system.
At present, a kind of conventional control and protective switch on market, in its electromagnetic operating device, adopt alternating electromagnet, operation principle is: when control power supply makes the coil electricity of alternating electromagnet, the reaction force that overcomes spring under the electromagnetic force that moving iron core produces after coil electricity moves to static iron core until be pulled together, the contact action mechanism interlock of moving iron core and switch, when moving to static iron core, moving iron core drives the moving contact action of major loop by contact action mechanism, moving iron core and static iron core adhesive are simultaneously, moving contact moves to and fixed contact closure, realize the connection of major loop, moving iron core relies on electromagnetic force to overcome the adhesive of spring reaction force retaining and static iron core, when control power supply makes the coil blackout of alternating electromagnet, disappear for the electromagnetic force that keeps moving iron core and static iron core adhesive, moving iron core moves to departing from static iron core direction under the reaction force of spring, drive moving contact action to separate with fixed contact by contact action mechanism simultaneously, realize the disconnection of major loop.
The prior art is because alternating electromagnet is simple in structure, the suction-combining force is difficult for greatly threading off, breaking speed is widely adopted soon.But, there is following defect in the prior art: 1. in the prior art in actual use, control and protective switch is to rely on electromagnetic force to overcome the long-time connection that the reaction force of spring keeps major loop, therefore when switch works long hours, solenoid must be switched on for a long time, and through measuring and calculating, on existing market, the alternating electromagnet power consumption of similar products is on average in 30-40W left and right, long-time energising must consume a large amount of electric energy, does not meet advocating of national energy-saving environmental protection; 2. in the prior art, after the long-time energising of coil, will inevitably accumulate certain heat, cause temperature to raise, once and because some external factor causes coil heat radiation bad, can cause the appearance of the phenomenon of coil burnout; 3. in the prior art, adopt alternating electromagnet also to exist noise large, the problem of poor reliability.
For the problems referred to above, in prior art, there is a kind of control and protective switch electromagnetic operating device that adopts permanent magnetism technology, as Chinese patent literature CN101459018B discloses a kind of control and protective switching device, the control circuit that permanent mechanism driving mechanism is set on the pedestal of this device for switching and adapts with permanent mechanism driving mechanism, controlling power supply makes the coil in permanent mechanism driving mechanism obtain a DC pulse current by rectification and electronic control circuit, the magnetic force that pulse produces and the electric power producing on moving iron core make iron core move and form closed magnetic circuit with static iron core adhesive to static iron core, simultaneously, the moving belt swing arm bearing action of moving iron core separates the dynamic/static contact of major loop, realizing major loop connects, after closed, control circuit disconnects the power supply of coil automatically, lean on the adhesive of the magnetic force maintained switch magnet of permanent magnet, realize energy-conservation, when coil blackout, control circuit sends a reverse magnetic force and at the suction-combining force that moves the reverse electric power counteracting permanent magnet producing on iron core, makes the dynamic/static contact of major loop separately under the effect of spring reaction power to coil, realizes major loop and disconnects.
The prior art is passed through permanent mechanism driving mechanism, and the control circuit adapting with permanent mechanism driving mechanism, while making switch, coil needn't be switched on for a long time and not only solved the problem of coil heating, but also saved a large amount of electric energy, obtain DC pulse current by coil and also solved the large problem of noise.But, still there is following problem in the prior art: 1. in the prior art in actual use, the suction-combining force that the adhesion that keeps adhesive to move iron core by the magnetic force of permanent magnet is compared electromagnet is less, in the time of the work of switch combined floodgate, if experience sharp pounding, easily cause moving iron core to be thrown off with static iron core under the effect of spring reaction power, cause switch to thread off, had a strong impact on job stability and the reliability of switch, 2. in the prior art, when switch separating brake, the reverse electrodynamic essence that control circuit sends on reverse magnetic force and moving iron core to coil is to load reverse voltage at the two ends of electromagnet, thereby realize switch separating brake for the suction of offsetting permanent magnet, but, as everyone knows, the increase of control circuit function will certainly increase the complexity of control circuit circuit, and more complicated circuit more easily breaks down, therefore, adopt permanent magnetism technology to cause the job stability of control and protective switch and reliability further to reduce, in addition, the complexity of control circuit circuit also can increase manufacturing cost.
To sum up, how to provide the one can be energy-conservation, when switch, stability and good reliability, simple in structure, and the control and protective switch of low cost of manufacture is eager desire and technical barrier urgently to be resolved hurrily in prior art.
Utility model content
For this reason; to be solved in the utility model is electromagnetic operating device when work stability and the good reliability of prior art control and protective switch; low cost of manufacture simple in structure; and the problem that can not take into account of saves energy three; thereby provide a kind of low cost of manufacture simple in structure; stability and good reliability when work, and can save the electromagnetic operating device for control and protective switch of a large amount of electric energy.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of electromagnetic operating device for control and protective switch, comprise electromagnet, thereby and can control switch major loop close a floodgate or the transmission mechanism of separating brake with the moving iron core interlock of described electromagnet, described electromagnet comprises housing, is fixed on the static iron core of described housing one end, is located at the coil in described housing, and part is stretched out from described housing and the reaction force that overcomes the first spring of described transmission mechanism in the time of described coil electricity moves axially and the moving iron core of adhesive to described static iron core, described electromagnet is DC electromagnet; Described electromagnetic operating device also comprises power saving lock buckle mechanism, described power saving lock buckle mechanism comprises the lock catch unit being connected between described moving iron core and the housing of described DC electromagnet, and with the power saving unit of described moving iron core interlock, described power saving unit moves to and described in adhesive, after static iron core, controls described coil blackout at described moving iron core, meanwhile, described lock catch unit acts on described moving iron core so that described moving iron core and described static iron core keep adhesive.
Described lock catch unit comprises snap close piece, is fixed in the part of stretching out from described DC electromagnet housing of described moving iron core, and described snap close piece forms snap close end; Locking board, be arranged on the housing of described DC electromagnet, described locking board forms and the axial corresponding lock buckling groove of described snap close end, so that described moving iron mandrel when moving to described in adhesive static iron core, snaps in described lock buckling groove with the axially movable described snap close end of described moving iron core and forms the back-off structure that prevents that described snap close end from departing to opposite shaft orientation.
Described back-off structure comprise be molded on described snap close end and described lock buckling groove a pair of mutually against surface.
Described a pair of mutually against the surface male and fomale(M&F) that is a pair of tabling.
The surface of described snap close end is the arc surface protruding, and the surface of described lock buckling groove is recessed arc surface.
Described snap close piece is to be molded over described moving iron core to stretch out the post shapes that described housing parts outer surface extends vertically upward, and described snap close end is take shape in described snap close piece top cylindrical; Described locking board is arranged on the upper cover plate of described DC electromagnet housing, and the notch of described lock buckling groove is connected towards described snap close end and with described surface.
The described upper cover plate of described DC electromagnet is provided with pivot, and described locking board, by being located at the pivoting hole of described pivot with described pivot opposite position molding sleeve, can rotate around described pivot it.
Described lock catch unit also comprises and being molded on described locking board, facilitates described snap close end to slip into the guide structure of described notch.
Described guide structure is constructed to be connected in described surface away from described static iron core one side the lead-in chamfered that fits with described snap close end before described coil electricity, described snap close end is in the time of described coil electricity, slide along described lead-in chamfered, to drive described locking board to rotate around described pivot, and and then rotate by described locking board the passage reserving and enter in described lock buckling groove and form described back-off structure with described lock buckling groove.
Described lock catch unit also comprises the described snap close end for locking described back-off structure and makes it there will not be the locking mechanism rocking.
Described locking mechanism is the locking torque of described locking board that imposes on buckle structure, so that the spring element of described lock buckling groove and the locking of described snap close end.
Described spring element is that one end is fixed on described locking board, and the other end is fixed on the second spring on the support that surrounds described DC electromagnet.
Described power saving unit comprises the sensitive switch being electrically connected with described coil, and with the swing arm of described moving iron core interlock, described swing arm is opened to control described sensitive switch by being pressed on described sensitive switch before described coil electricity, after described coil electricity, swing the described sensitive switch of disengaging and close to control described sensitive switch, thereby make described coil blackout.
Described transmission mechanism comprise the transverse axis that penetrates described moving iron core sidewall and extend to both sides, respectively with the fixing arm bearing in described transverse axis two ends, and bottom is connected with the moving contact rack that Compress Spring, top are pressed by the back seat of described arm bearing one side, on described moving contact rack, be provided with moving contact, described the first spring is fixedly connected between described arm bearing and support; Described arm bearing moves to described static iron core at described moving iron core under the thrust that described Compress Spring below pulling force and described moving contact rack discharges elastic force and swings, so that described moving contact is moved upward to and the fixed contact closure of top, thereby realize the combined floodgate of major loop described in switch; Described arm bearing departs from after the snap close of described lock buckling groove at described snap close end, presses described moving contact rack and move down under the reaction force of described the first spring, so that described moving contact separates with described fixed contact, thereby realizes the separating brake of major loop described in switch.
Described swing arm is molded over the opposite side of relatively described back seat on described arm bearing.
The housing of described DC electromagnet is Fang Tizhuan, the coil rack that is wound around described coil is set in described housing, described coil rack forms the circular channel extending vertically, described static iron core is installed in described circular channel one end near outside, described moving iron core is cylindrical, can axially movably be arranged in described circular channel.
Also comprise rotary switch assembly, described rotary switch assembly comprises the knob with closing position and open position, and the swing component that driven by described knob, the adjacent described locking board one lateral edges setting in described swing component one end, described swing component is subject to described knob drive and swing in the time that described knob rotates to open position, overcomes the described lateral edges that locking torque promotes described locking board and makes the described lock buckling groove of described locking board turn to its notch and described snap close end opposite position.
Technique scheme of the present utility model has the following advantages compared to existing technology:
1. the electromagnetic operating device for control and protective switch of the present utility model; also include power saving lock buckle mechanism; described power saving lock buckle mechanism comprises the lock catch unit being connected between described moving iron core and the housing of described DC electromagnet, and with the power saving unit of described moving iron core interlock.When coil electricity, the reaction force that moving iron core overcomes the first spring under the electromagnetic force of coil electricity moment generation moves to static iron core, and with the power saving unit of moving iron core interlock in moving iron core action control coil power-off afterwards, meanwhile, moving iron core move to described static iron core adhesive after, act on moving iron core and iron core is kept and the adhesive of static iron core by being connected in lock catch unit between moving iron core and the housing of DC electromagnet, moving iron core is behind the position moving to static iron core adhesive, drive the transmission mechanism action control switch major loop of interlock with it to close a floodgate.The utility model adopts mechanical lock catch unit to keep moving iron core and static iron core adhesive, even if meet with sharp pounding while making work, the adhesive of moving iron core and static iron core also can not be thrown off, and has greatly improved functional reliability and the stability of electromagnetic operating device, and, keep in attracting process at moving iron core and static iron core, coil is in off-position, and coil can not generate heat, and there is no noise, most importantly can save a large amount of electric energy, respond advocating of national energy-saving environmental protection.In addition, because power saving lock buckle mechanism is installed on electromagnet, therefore, ensure that the power saving lock buckle mechanism that the utility model adopts can not make the overall dimensions of control and protective switch become large.The utility model has adopted DC electromagnet, and DC electromagnet is little compared to alternating electromagnet volume, and the structure of DC electromagnet is also more conducive to the installation of power saving lock buckle mechanism.
2. the electromagnetic operating device for control and protective switch of the present utility model, its lock catch unit comprises on the moving iron core that is fixedly installed on described DC electromagnet and forms the snap close piece of snap close end, and be arranged on the locking board on DC electromagnet housing, on locking board, form and the axial corresponding lock buckling groove of snap close end, when coil electricity moment, moving iron core moves to and static iron core adhesive under the electromagnetic force of moment generation, and the snap close end that now servo-actuated iron core together moves snaps onto in lock buckling groove and to form back-off structure with lock buckling groove, prevent from moving to departing from static iron core direction in the situation that electromagnetic force disappears with the moving iron core of snap close end one by the setting of back-off structure, the adhesive that has kept moving iron core and static iron core without energising in the situation that.This kind of lock catch unit simple in structure, is easy to processing, low cost of manufacture.
3. the electromagnetic operating device for control and protective switch of the present utility model; described back-off structure is shaped to the arc surface of a pair of tabling; by the setting of arc surface not only make the surface of snap close end and the Surface Contact area of lock buckling groove large; and locking is more reliable, improve job stability and the reliability of electromagnetic operating device.
4. the electromagnetic operating device for control and protective switch of the present utility model, described snap close piece is to be molded over described moving iron core to stretch out the post shapes that described housing parts outer surface extends vertically upward, and described snap close end is take shape in described snap close piece top cylindrical; Described locking board is arranged on the upper cover plate of described DC electromagnet housing, and the notch of described lock buckling groove is connected towards described snap close end and with described surface.This kind of structure setting utilized described moving iron core to stretch out the space of housing parts top, compact conformation better.
5. the electromagnetic operating device for control and protective switch of the present utility model; described lock catch unit also comprises the guide structure that conveniently slips into described lock buckling groove and form described back-off structure for described snap close end; the moving iron core that is provided with snap close piece that is arranged so that by guide structure moves more smooth and easy; reduce the wearing and tearing of mechanism, be conducive to improve the useful life of switch.
6. the electromagnetic operating device for control and protective switch of the present utility model; locking board is set to rotatable; thereby; in the time that described snap close end applies active force along lead-in chamfered to locking board; described locking board can rotate; thereby reserve the passage that enters described lock buckling groove for described snap close end; above-mentioned lead-in chamfered arranges phase accessory with the rotatory of locking board; make whole guide structure under moving iron core drives, can complete guiding at snap close end, the ingenious property of structural design has improved the operating efficiency of lock catch unit greatly.
7. the electromagnetic operating device for control and protective switch of the present utility model, by power saving lock buckle mechanism be arranged so that moving iron core moves to static iron core time can keep adhesive with static iron core under without the state of energising at coil, but, in back-off structure for preventing that snap close end from certainly existing gap to the both sides that depart from the snap close face that static iron core direction moves, and the existence in this gap makes electromagnetic operating device in the time meeting with sharp pounding, moving iron core and snap close piece there will be and rock, therefore, the utility model is by the setting of the locking mechanism that matches with described back-off structure, make the adhesive of moving iron core and static iron core, in the time meeting with sharp pounding, there will not be and rock, job stability and the reliability of electromagnetic operating device are further improved.
8. the electromagnetic operating device for control and protective switch of the present utility model, by spring element, back-off structure is locked, described spring element is that one end is fixed on described locking board, the other end is fixed on the second spring on the support that surrounds described DC electromagnet, in the time that described snap close end moves under the drive of moving iron core, described locking board rotates, in this process, the second spring being connected with described locking board is stretched/compresses, and after described snap close end enters described lock buckling groove, described the second spring will reset along opposite direction compressed and that stretch before it, thereby in reseting procedure, drive lock buckling groove and described snap close end to closely cooperate, improve the stability of back-off structure.And the particular design position of described the second spring makes its reset that both can serve locking board in described guide structure, also can in reset, realize the locking for back-off structure, kill two birds with one stone.
9. the electromagnetic operating device for control and protective switch of the present utility model; described power saving unit comprises the sensitive switch being electrically connected with described coil; and with the swing arm of described moving iron core interlock; described swing arm is opened to control described sensitive switch by being pressed on described sensitive switch before described coil electricity; after described coil electricity, swing the described sensitive switch of disengaging and close to control described sensitive switch, thereby make described coil blackout.This kind of power saving unit is simple in structure, designs ingenious.
10. the electromagnetic operating device for control and protective switch of the present utility model; take full advantage of described swing arm and described arm bearing the characteristic swinging occurs in the time that moving iron core moves; by described swing arm being molded over to the opposite side (described swing arm and described arm bearing are shaped to integrative-structure) of relatively described back seat on described arm bearing; make the structure of electromagnetic operating device simpler; compact; both saved space, dwindled volume, further energy-conservation again manufacturing cost.
11. electromagnetic operating devices for control and protective switch of the present utility model, also comprise rotary switch assembly, described rotary switch assembly comprises the knob with closing position and open position, and the swing component that driven by described knob, the adjacent described locking board one lateral edges setting in described swing component one end, described swing component is driven by described knob in the time that described knob rotates to open position and swings, overcoming the described lateral edges that described locking torque promotes described locking board makes the described lock buckling groove of described locking board turn to its notch and described snap close end opposite position.Promote locking board by swing component and rotate and realize the separating brake of control and protective switch, design ingenious, connection and reasonable arrangement.
Brief description of the drawings
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the perspective view of the electromagnetic operating device of the utility model embodiment, and moving iron core and static iron core are in attracting state not;
Fig. 2 is the perspective view at another visual angle of Fig. 1;
Fig. 3 is the perspective view of the electromagnetic operating device of the utility model embodiment, and moving iron core and static iron core are in attracting state;
Fig. 4 is the perspective view at another visual angle of Fig. 3;
Fig. 5 is the perspective view of the electromagnetic operating device of the support of the not shown encirclement electromagnet setting of the utility model embodiment;
Fig. 6 is locking board in the electromagnetic operating device of the utility model embodiment, snap close piece, DC electromagnet case top lid plate, and the assembling schematic diagram of moving iron core;
Fig. 7 is the perspective view of locking board in the electromagnetic operating device of the utility model embodiment;
Fig. 8 is the exploded view of DC electromagnet in the electromagnetic operating device of the utility model embodiment.
Description of reference numerals:
1-DC electromagnet, 11-moves iron core, 12-static iron core, 13-upper cover plate, 13a-pivot, 14-coil, 15-coil rack, 151-circular channel, 16-support, 17-folding shape cover plate, 18-back shroud;
21-snap close piece, 211-snap close end, 211a-surface, 22-locking board, 221-lock buckling groove, 221a-surface, 221b-notch, 222-lead-in chamfered, 223-pivoting hole, 224-master control point, 23-the second spring;
31-swing arm, 32-sensitive switch;
51-transverse axis, 52-arm bearing, 521-back seat, 53-Compress Spring, 54-moving contact rack;
61-the first spring;
71-knob, 72-swing component;
8-major loop, 81-moving contact, 82-fixed contact.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
Embodiment 1
As Fig. 1-4, show the preferred embodiment of the electromagnetic operating device for control and protective switch of the present utility model, the electromagnetic operating device for control and protective switch that the present embodiment provides, comprise rotary switch assembly, electromagnet, thereby and link and can control switch major loop 8 close a floodgate or the transmission mechanism of separating brake with the moving iron core 11 of described electromagnet, rotary switch assembly has open position and closing position, in the time that rotary switch assembly rotates to its closing position, described in this spinning movement control, magnet spool 14 is switched on, the static iron core 12 of described electromagnet produces electromagnetic force under described coil 14 energisings, the reaction force that described in this electromagnetic attracting force, the moving iron core 11 of electromagnet overcomes the first spring 61 of described transmission mechanism moves until adhesive to described static iron core 12, and described transmission mechanism arranges with described moving iron core 11 interlocks, when described moving iron core 11 is in described static iron core 12 moving process, the moving contact 81 of the major loop of described transmission mechanism action drives control and protective switch move and with fixed contact 82 closures, realize the combined floodgate of major loop, control and protective switch starting protection function.
In the present embodiment, as Figure 1-4, described electromagnet is DC electromagnet 1, described electromagnetic operating device also comprises power saving lock buckle mechanism, described power saving lock buckle mechanism comprises the lock catch unit being connected between described moving iron core 11 and the housing of described DC electromagnet 1, and the power saving unit linking with described moving iron core 11, described power saving unit moves to described coil 14 power-off of the rear control of static iron core 12 described in adhesive at described moving iron core 11, meanwhile, described lock catch unit acts on described moving iron core 11 so that described moving iron core 11 keeps adhesive with described static iron core 12.
In the present embodiment, in the time that described coil 14 is switched on, the reaction force that described moving iron core 11 overcomes the first spring 61 under coil 14 is switched on the electromagnetic force that moment produces moves to static iron core 12, and the power saving unit linking with moving iron core 11 control coil 14 power-off after moving iron core 11 actions, meanwhile, moving iron core 11 move to described static iron core 12 adhesives after, act on moving iron core 11 and iron core 11 is kept and the adhesive of static iron core 12 by being connected in lock catch unit between moving iron core 11 and the housing of DC electromagnet 1, moving iron core 11 is behind the position moving to static iron core 12 adhesives, drive the transmission mechanism action control switch major loop of interlock with it to close a floodgate.The present embodiment electromagnetic operating device is by adopting mechanical lock catch unit to keep the adhesive of moving iron core 11 and static iron core 12, even if make to meet with sharp pounding in the time of work, the powerful adhesion forming due to lock catch unit can not be thrown off the adhesive of moving iron core and static iron core, thereby functional reliability and the stability of electromagnetic operating device are greatly improved, and, keep in attracting process with static iron core 12 at moving iron core 11, coil 14 by the control of power saving unit in off-position, coil can not generate heat, there is no noise, most importantly can save a large amount of electric energy, respond advocating of national energy-saving environmental protection.
In addition, because power saving lock buckle mechanism is installed on electromagnet, therefore, after ensureing to adopt power saving lock buckle mechanism, can not make overall dimensions become large, the alternating electromagnet that the electromagnetic operating device of the present embodiment adopts prior art electromagnetic operating device is replaced by DC electromagnet, take full advantage of the feature that DC electromagnet is less than alternating electromagnet volume, although thereby the electromagnetic operating device that makes the present embodiment has increased power saving lock buckle mechanism, but still can ensure with the size of the electromagnetic operating device of prior art about the same, therefore, the electromagnetic operating device of the present embodiment can directly be installed in the housing of conventional in the market control and protective switch, save the production cost that adopts the control and protective switch of the present embodiment electromagnetic operating device.In addition, the structure of DC electromagnet is also more suitable for the installation of the power saving lock buckle mechanism of the present embodiment.
But, there is compared to alternating electromagnet the problem that the suction-combining force is less in DC electromagnet, therefore, the DC electromagnet adopting in the present embodiment will be moved iron core adhesive to static iron core in order to ensure enough the suction-combining forces, and drive transmission mechanism to move, the power of its power ratio available technology adopting alternating electromagnet is larger, but because the DC electromagnet of the present embodiment is only switched in moving iron core adhesive moment, therefore overall, the electromagnetic operating device energy-saving effect of the present embodiment is obvious, is suitable for marketing application.
Particularly, as Figure 1-4, the described lock catch unit of the present embodiment comprises snap close piece 21 and locking board 22, wherein, described snap close piece 21 is fixed in the part of stretching out from described DC electromagnet 1 housing of described moving iron core 11, described snap close piece 21 forms snap close end 211, described locking board 22 is arranged on the housing of described DC electromagnet 1, described locking board 22 forms and the axial corresponding lock buckling groove 221 of described snap close end 211, switch on moment at described coil 14, when described moving iron core 11 moves to described in adhesive static iron core 12 vertically, with described moving iron core 11 together axially movable described snap close end 211 move and finally snap onto in described lock buckling groove 221 and to form the back-off structure that prevents that described snap close end 211 from departing to opposite shaft orientation to institute's catching groove 221 of axial correspondence.Prevented from moving to departing from static iron core direction in the situation that electromagnetic force disappears with the moving iron core of snap close end one the adhesive that has kept moving iron core and static iron core without energising in the situation that by the setting of back-off structure.This kind of lock catch unit simple in structure, is easy to processing, low cost of manufacture.In the present embodiment, described snap close piece 21 is one-body molded with described moving iron core 11, but the utility model is not limited to integrated mode, in other embodiments, described snap close piece 21 can also be fixed on moving iron core 11 with any known means, for example welding.
Further particularly, described back-off structure comprise be molded on described snap close end 211 and described lock buckling groove 221 a pair of mutually against surperficial 211a, 221a.Described snap close end 211 for against surperficial 211a and lock buckling groove 221 for against surperficial 221a can have the multiple version matching, for example, the surperficial 221a of lock buckling groove 221 is flat face, the surperficial 211a of snap close end 211 is the arc surface being resisted against on this flat face, this kind of structure arranges down, the arc-shaped surface of snap close end can easily slide on the flat surface of lock buckling groove, but, the contact area of arc surface and flat face is less, under control and protective switch operational vibration, arc surface and flat face relative position easily change, thereby the job stability of electromagnetic operating device and reliability are reduced.Therefore, a described effects on surface 211a of the present embodiment, 221a is preferably the male and fomale(M&F) of a pair of tabling, and the fit system of male and fomale(M&F) makes snap close end and lock buckling groove under switch vibration, and relative position is constant, and switch stability and reliability are high.Further particularly, in the present embodiment, described snap close end 211 for against surperficial 211a be protrude arc surface, described lock buckling groove 221 for against surperficial 221a be recessed arc surface, and for the arc surface that snap close end protrudes can easily must be slided in recessed arc surface, in the present embodiment, the recessed arc surface of described lock buckling groove adopts circular arc to connect with being connected of the notch 221b of lock buckling groove.
As shown in Figure 5 and Figure 6, the described snap close piece 21 of the present embodiment stretches out for being molded over described moving iron core 11 post shapes that described housing parts outer surface extends vertically upward, and described snap close end 211 is for taking shape in the cylindrical of described snap close piece 21 tops.Described locking board 22 is arranged on the upper cover plate 13 of described DC electromagnet 1 housing, and the notch 221b of described lock buckling groove 221 is connected towards described snap close end 211 and with the edge circular arc of described surperficial 211a.This kind of structure setting utilized described moving iron core to stretch out the space of housing parts top, compact conformation better.Snap close piece 21 that the utility model is not limited to provide in the present embodiment and the version of locking board 22 are provided; in other embodiments; described locking board 22 can also be shaped to integrative-structure with the upper cover plate of described DC electromagnet 1 13; certainly; described locking board 22 also can be arranged on other sidewalls of described DC electromagnet 1; in a word, can realize within lock catch unit between moving iron core 11 and locking board 22 is all included in protection range of the present utility model.
In the present embodiment, described locking board 22 is arranged on the described upper cover plate of described DC electromagnet 1 rotationally, specifically he, in the present embodiment, as shown in Fig. 1-6, the described upper cover plate 13 of described DC electromagnet 1 is provided with pivot 13a, and described locking board 22, by being located at the pivoting hole 223 of described pivot 13a with described pivot 13a opposite position molding sleeve, can rotate around described pivot 13a it.
For the snap close end 211 that makes the present embodiment can slide in lock buckling groove 221 in the time that static iron core 12 directions move swimmingly with described moving iron core 11, as shown in Figure 6, described lock catch unit also comprises and being molded on described locking board 22, facilitate described snap close end 211 slip into described notch 221b form described back-off structure guide structure.By guide structure be arranged to be provided with the moving iron core action of snap close piece more smooth and easy, reduced the wearing and tearing of mechanism, be conducive to improve the useful life of switch.In the present embodiment, described guide structure is constructed to be connected in the lead-in chamfered 222 that described surperficial 221a fits with described snap close end 211 away from described static iron core 12 1 sides and before described coil 14 energisings, thereby, in the time that described snap close end applies active force along lead-in chamfered to locking board, described locking board can rotate, thereby reserve the passage that enters described lock buckling groove for described snap close end, above-mentioned lead-in chamfered arranges phase accessory with the rotatory of locking board, make whole guide structure under moving iron core drives, can complete guiding at snap close end, the ingenious property of structural design has improved the operating efficiency of lock catch unit greatly.
By power saving lock buckle mechanism be arranged so that moving iron core 11 moves to static iron core 12 time can under the state without energising, keep adhesive with static iron core 12 at coil 14, but, in back-off structure for preventing that snap close end 211 from certainly existing gap to the both sides that depart from the snap close face that static iron core 12 directions move, and the existence in this gap makes electromagnetic operating device in the time meeting with sharp pounding, moving iron core and snap close piece there will be and rock, therefore, while meeting with sharp pounding for the electromagnetic operating device that prevents the present embodiment when the work, moving iron core 11 there will be and rocks, thereby the stability of the moving iron core 11 of impact and static iron core 12 adhesives, as shown in Fig. 1-6, the electromagnetic operating device of the present embodiment, also comprise the described snap close end 211 for locking described back-off structure and make it there will not be the locking mechanism rocking.The utility model is by the setting of the locking mechanism that matches with described back-off structure, makes the adhesive of moving iron core and static iron core, in the time of experience sharp pounding, there will not be and rocks, and further improved job stability and the reliability of electromagnetic operating device.
The set-up mode of described locking mechanism has a lot, as the preferred embodiment of embodiment, described locking mechanism is 221 1 locking torques of described locking board that impose on buckle structure, so that the spring element that described lock buckling groove 221 and described snap close end 211 are locked.As Figure 1-4, described spring element imposes on a clockwise moment of the snap close end 211 in described back-off structure, this moment is tightly fitted described snap close end 211 and a sidewall of described lock buckling groove 221, thereby has prevented snap close end from the time meeting with sharp pounding, shaking and the situation of deviating from from the notch 221b of lock buckling groove 221 occurs.
In the present embodiment, as Figure 1-4, described spring element is that one end is fixed on described locking board 22, and the other end is fixed on the second spring 23 on the support 16 that surrounds described DC electromagnet 1.As shown in Figure 7, on described locking board 22, form the hitching arm 225 for fixing described second spring 23 one end.In the time that described snap close end moves under the drive of moving iron core, described locking board rotates, in this process, the second spring being connected with described locking board is stretched, and after described snap close end enters described lock buckling groove, the opposite direction that described the second spring will be stretched along it before resets, thereby in reseting procedure, drives lock buckling groove and described snap close end to closely cooperate, and has improved the stability of back-off structure.And the particular design position of described the second spring makes its reset that both can serve locking board in described guide structure, also can in reset, realize the locking for back-off structure, kill two birds with one stone.
But it should be noted that, spring element of the present utility model is not limited to the version of the spring in extended state, in other embodiments, described spring element can also be the spring in compressive state, and one end is fixed on support 16, and the other end is against the edge of locking board 22 1 sides, described spring element must be not also spring, can be for example to have better flexible rubber band, similar effect part also has a lot, does not enumerate at this.
Further describe the power saving unit of the present embodiment, as shown in Figure 2 and Figure 4, described power saving unit comprises the sensitive switch 32 being electrically connected with described coil 14, and the swing arm 31 linking with described moving iron core 11.Described electrical connection refers to, when the sound contact contact of described sensitive switch 32, coil 14 conducts with sensitive switch 32, when the sound contact of sensitive switch 32 separates, on the closed circuit of coil 14, occur opening circuit, and coil 14 power-off.The power saving unit of the present embodiment is to realize like this, described swing arm 31 is opened (referring to that the moving contact of pressing sensitive switch makes the contact of sound contact herein) before described coil 14 energisings to control described sensitive switch 32 by being pressed on described sensitive switch 32, described coil 14 conducts (but now because rotary switch assembly is in gate-dividing state with described sensitive switch 32, therefore control described coil 14 in "on" position not), described swing arm 31 is after described coil 14 energisings, swing along with the action of described moving iron core 11, thereby (moving contact of described sensitive switch 32 flicks after pressure departs to depart from described sensitive switch 32, separated position is got back in sound contact, be that sensitive switch cuts out), thereby control described coil 14 power-off.
It should be noted that; the setting of power saving unit of the present utility model is not limited to the version that in the present embodiment, sensitive switch coordinates with swing arm; in line with the object that realizes power saving unit function; in other embodiments; can also be by realizing energy-conservation to the improvement of wiring board in control and protective switch; for example, moving iron core move to static iron core adhesive after, realize coil blackout by wiring board control.
In addition, as shown in Figures 3 and 5, the described transmission mechanism of the present embodiment comprise the transverse axis 51 that penetrates described moving iron core 11 sidewalls and extend to both sides, respectively with the fixing arm bearing 52 in described transverse axis 51 two ends, and bottom is connected with Compress Spring 53, the moving contact rack 54 that top is pressed by the back seat 521 of described arm bearing 52 1 sides, on described moving contact rack 54, be provided with moving contact 81, described the first spring 61 is fixedly connected between described arm bearing 52 and support 16.
When described coil 14 is switched on, described moving iron core 11 moves to described static iron core 12, when moving, described moving iron core 11 imposes on 52 1 pulling force of described arm bearing by described transverse axis 51, the described Compress Spring 53 that is positioned at described moving contact rack 54 belows passes to thrust of described arm bearing by described moving contact rack 54, by the effect of described pulling force and described thrust, described arm bearing 52 swings along with the movement of described moving iron core 11, as shown in Figure 2, described arm bearing 52 counter-clockwise swings, described moving contact rack 54 moves up along with the counter-clockwise swing of described arm bearing 52, until fixed contact 82 closures that the moving contact 81 arranging on described moving contact rack 54 and top arrange, thereby realize the combined floodgate of major loop 8 described in switch,
Described snap close end 211 departs from after the snap close of described lock buckling groove 221, the first spring 61 pulls described arm bearing 52 to swing clockwise, the back seat 521 of described arm bearing 52 overcomes the elastic force of described Compress Spring 53 under the pulling force of described the first spring 61, pressing described moving contact rack 54 moves down, described moving contact 81 and described fixed contact 82 are separated, thereby realize the separating brake of major loop 8 described in switch.
The electromagnetic operating device of the present embodiment, take full advantage of described swing arm and described arm bearing the characteristic swinging occurs in the time that moving iron core moves, as shown in Figure 2 and Figure 4, described swing arm 31 is molded over the opposite side of relatively described back seat 521 on described arm bearing 52, by described swing arm 31 is shaped to integrative-structure with described arm bearing 52, save the setting for driving described swing arm 31 parts, thereby make the structure of electromagnetic operating device of the present embodiment more succinct, compactness, most important is to have saved production cost.
As Figure 1-5, described DC electromagnet 1 side's of being shape, as shown in Figure 8, described DC electromagnet 1 comprises housing, be arranged on coil rack 15 in housing, be wrapped in coil 14 on described coil rack 15, be positioned at coil rack 15 one end, the static iron core 12 being fixedly installed, and be positioned at the circular channel 151 of coil rack 15, and can move vertically and the moving iron core 13 of static iron core adhesive or disengaging, wherein, described housing comprises upper cover plate 13, back shroud 18, and front shroud, left and right cover plate is shaped to the folding shape cover plate 17 of one.Described moving iron core 11 is cylindrical.
The rotary switch assembly of the electromagnetic operating device of the present embodiment, as shown in Figure 5, comprise the knob 71 with closing position and open position, and the swing component 72 that driven by described knob 71, the described swing component 72 adjacent described locking board 22 1 lateral edges settings in one end, described swing component 72 is subject to described knob 71 drive and swing in the time that described knob 71 rotates to open position, particularly, as shown in Figure 7, when described knob 71 rotates to open position, swing component swings, thereby promote the described locking board 22 of adjacent described swing component one end setting near the master control point 224 arranging on a lateral edges, thereby swing component 72 overcomes the described master control point 224 that described locking torque promotes described locking board 22 makes the described lock buckling groove 221 of described locking board 22 turn to its notch 221b and described snap close end 211 opposite positions, then, described moving iron core 11 makes the snap close end 211 of snap close piece 21 deviate from from notch 221b under the pulling force of described the first spring 61.
The course of work of the electromagnetic operating device of the present embodiment is below described with reference to the accompanying drawings:
As illustrated in fig. 1 and 2, described electromagnetic operating device is state before coil 14 energisings, described moving iron core 11 and not adhesive of static iron core 12, described knob 71 is in its open position, described snap close piece 21 is resisted against in described lead-in chamfered 222, described swing arm 31 makes it in opening by being pressed on described sensitive switch 32, and described moving contact 81 separates with described fixed contact 82, and described major loop 8 is in gate-dividing state.
Now, rotate described knob 71 to its closing position, described coil 14 is switched on, described moving iron core 11 moves axially to described static iron core 12 under electromagnetic force, in moving process, the arm bearing 52 linking by described transverse axis and described moving iron core 11 discharges under the promotion of elastic force at pulling force and the described Compress Spring 53 of described moving iron core, swing in the counterclockwise direction, described moving contact rack 54 discharges at Compress Spring 58 under the thrust of elastic force and moves up, simultaneously, depart from and the contacting of described sensitive switch 32 by swing with the shaping integrated swing arm 31 of described arm bearing 52, thereby sensitive switch cuts out, coil 14 power-off that sensitive switch closing control is electrically connected with sensitive switch.
In the time that described moving iron core 11 moves to described static iron core 12 vertically, the snap close end 211 of the snap close piece 21 together moving with described moving iron core 11 slides to the lock buckling groove 221 of axial correspondence along the lead-in chamfered 221 of described locking board 22, when slip, snap close piece 21 promotes counterclockwise rotation of locking board 22, locking board rotates counterclockwise and reserves the passage passing through for snap close end, in the time that described moving iron core 11 moves to described static iron core 12 adhesive, the notch 221b of snap close end 211a along described passage from lock buckling groove 221, slip into and form described back-off structure, described moving contact rack 54 moves to after adhesive static iron core 12 at described moving iron core 11, be moved upward to and make the moving contact 81 of setting on it and fixed contact 82 closures of top setting, described major loop 8 closes a floodgate.Now, the state of electromagnetic operating device as shown in Figure 3 and Figure 4.
When electromagnetic operating device does not need work, rotate described knob 71 to its open position, described knob 71 drives described swing component 72 to swing while rotation, described swing component 72 overcomes the elastic force of the second spring 23 while swing, a lateral edges that promotes described locking board 22 rotates it in the counterclockwise direction, thereby make locking board 22 turn to its notch 221a and the just right position of snap close end 211, described snap close end 211 has lost conflict, thereby move along opposite shaft orientation with described moving iron core 11 under the pulling force effect of the first spring 61, from the notch 221b of lock buckling groove 221, deviate from, in the time that described moving iron core 11 moves to disengaging static iron core direction, actuating arm bearing swings along clockwise direction, the back seat of arm bearing overcomes the elastic force of Compress Spring 53 and presses moving contact rack downwards, thereby the moving contact 81 on moving contact rack is separated with fixed contact 82, major loop separating brake, when arm bearing swings, with the swing arm 31 of arm bearing one along being rocked to the position of pressing sensitive switch in clockwise direction, described electromagnetic operating device is got back to state as depicted in figs. 1 and 2.
Embodiment 2
The present embodiment provides a kind of electromagnetic operating device for control and protective switch, it is the distortion on embodiment 1 basis, in the present embodiment, guide structure is different from embodiment 1, described guide structure comprises the elastic device being arranged on described locking board 22, described elastic device has resilient channels, described resilient channels has towards the opening of described snap close end 211, the diameter of described opening is less than the diameter of described snap close end 211, in the time that moving iron core drives described snap close end 211 towards described resilient channels motion, described snap close end 211 enters described opening, and strut described opening under the elastic sidewall effect of elastic device, and and then enter the lock buckling groove 221 that is arranged in described resilient channels rear, now, described snap close end 211 departs from described resilient channels, described elastic sidewall resets, described snap close end is that described elastic device is blocked in lock buckling groove 211, form stable back-off structure.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And among the protection range that the apparent variation of being amplified out thus or variation are still created in the utility model.
Claims (17)
1. the electromagnetic operating device for control and protective switch, comprise electromagnet, and with the moving iron core (11) of described electromagnet thus interlock can control switch major loop (8) close a floodgate or the transmission mechanism of separating brake, described electromagnet comprises housing, be fixed on the static iron core (12) of described housing one end, be located at the coil (14) in described housing, and part is stretched out from described housing and the reaction force that overcomes first spring (61) of described transmission mechanism in the time that described coil (14) switch on moves axially the moving iron core (11) of also adhesive to described static iron core (12), it is characterized in that:
Described electromagnet is DC electromagnet (1);
Described electromagnetic operating device also comprises power saving lock buckle mechanism, described power saving lock buckle mechanism comprises the lock catch unit being connected between described moving iron core (11) and the housing of described DC electromagnet (1), and with the power saving unit of described moving iron core (11) interlock, described power saving unit moves to control described coil (14) power-off after static iron core (12) described in adhesive at described moving iron core (11), meanwhile, described lock catch unit acts on described moving iron core (11) so that described moving iron core (11) keeps adhesive with described static iron core (12).
2. electromagnetic operating device according to claim 1, is characterized in that: described lock catch unit comprises
Snap close piece (21), is fixed in the part of stretching out from described DC electromagnet (1) housing of described moving iron core (11), and described snap close piece (21) forms snap close end (211);
Locking board (22), be arranged on the housing of described DC electromagnet (1), described locking board (22) forms and the axial corresponding lock buckling groove (221) of described snap close end (211), so that described moving iron core (11) while moving axially to static iron core described in adhesive (12), snaps in described lock buckling groove (221) with the axially movable described snap close end of described moving iron core (11) (211) and forms the back-off structure that prevents that described snap close end (211) from departing to opposite shaft orientation.
3. electromagnetic operating device according to claim 2, it is characterized in that: described back-off structure comprise be molded on described snap close end (211) and described lock buckling groove (221) a pair of mutually against surface (211a, 221a).
4. electromagnetic operating device according to claim 3, is characterized in that: described a pair of mutually against surface (211a, the 221a) male and fomale(M&F) that is a pair of tabling.
5. electromagnetic operating device according to claim 4, it is characterized in that: the arc surface of the surface (211a) of described snap close end (211) for protruding, the surface (221a) of described lock buckling groove (221) is recessed arc surface.
6. electromagnetic operating device according to claim 5, it is characterized in that: described snap close piece (21) stretches out for being molded over described moving iron core (11) post shapes that described housing parts outer surface extends vertically upward, described snap close end (211) is for taking shape in the cylindrical of described snap close piece (21) top; Described locking board (22) is arranged on the upper cover plate (13) of described DC electromagnet (1) housing, and the notch (221b) of described lock buckling groove (221) is connected towards described snap close end (211) and with described surface (211a).
7. electromagnetic operating device according to claim 6, it is characterized in that: the described upper cover plate (13) of described DC electromagnet (1) is provided with pivot (13a), described locking board (22), by being located at the pivoting hole (223) of described pivot (13a) with described pivot (13a) opposite position molding sleeve, can rotate around described pivot (13a) it.
8. electromagnetic operating device according to claim 7, it is characterized in that: described lock catch unit also comprises that being molded over described locking board (22) goes up, and facilitates described snap close end (211) to slip into the guide structure of described notch (221b).
9. electromagnetic operating device according to claim 8, it is characterized in that: described guide structure is constructed to be connected in the lead-in chamfered (222) that described surface (221a) fits with described snap close end (211) away from described static iron core (12) one sides and before described coil (14) energising, when described snap close end (211) is switched at described coil (14), slide along described lead-in chamfered (222), to drive described locking board (22) to rotate around described pivot (13a), and and then rotate by described locking board (22) passage reserving and enter in described lock buckling groove (221) and form described back-off structure with described lock buckling groove (221).
10. electromagnetic operating device according to claim 9, is characterized in that: described lock catch unit also comprises the described snap close end (211) for locking described back-off structure and makes it there will not be the locking mechanism rocking.
11. electromagnetic operating devices according to claim 10, it is characterized in that: described locking mechanism is (221) locking torques of described locking board that impose on buckle structure, so that the spring element of described lock buckling groove (221) and described snap close end (211) locking.
12. electromagnetic operating devices according to claim 11, it is characterized in that: described spring element is that one end is fixed on described locking board (22) above, and the other end is fixed on the second spring (23) on the support (16) that surrounds described DC electromagnet (1).
13. according to the electromagnetic operating device described in any one in claim 2-12, it is characterized in that: described power saving unit comprises the sensitive switch (32) being electrically connected with described coil (14), and with the swing arm (31) of described moving iron core (11) interlock, before described coil (14) energising, by being pressed in, described sensitive switch (32) is upper to be opened to control described sensitive switch (32) described swing arm (31), after described coil (14) energising, swinging the described sensitive switch of disengaging (32) closes to control described sensitive switch (32), thereby make described coil (14) power-off.
14. electromagnetic operating devices according to claim 13, it is characterized in that: described transmission mechanism comprises the transverse axis (51) that penetrates described moving iron core (11) sidewall and extend to both sides, respectively with the fixing arm bearing (52) in described transverse axis (51) two ends, and bottom is connected with Compress Spring (53), the moving contact rack (54) that top is pressed by the back seat (521) of described arm bearing (52) one sides, on described moving contact rack (54), be provided with moving contact (81), described the first spring (61) is fixedly connected between described arm bearing (52) and support (16),
Described arm bearing (52) swings under the thrust of described Compress Spring (53) the release elastic force of the mobile pulling force of described static iron core (12) and described moving contact rack (54) below at described moving iron core (11), so that described moving contact (81) is moved upward to and fixed contact (82) closure of top, thereby realize the combined floodgate of major loop (8) described in switch;
Described arm bearing (52) departs from after the snap close of described lock buckling groove (221) at described snap close end (211), under the reaction force of described the first spring (61), pressing described moving contact rack (54) moves down, so that described moving contact (81) separates with described fixed contact (82), thereby realize the separating brake of major loop (8) described in switch.
15. electromagnetic operating devices according to claim 14, is characterized in that: described swing arm (31) is molded over the opposite side of relatively described back seat (521) on described arm bearing (52).
16. according to the electromagnetic operating device described in any one in claim 1-12, it is characterized in that: the housing of described DC electromagnet (1) is Fang Tizhuan, the coil rack (15) that is wound around described coil (14) is set in described housing, described coil rack (15) forms the circular channel (151) extending vertically, described static iron core (12) is installed in described circular channel (151) one end near outside, described moving iron core (11) is cylindrical, can axially movably be arranged in described circular channel (151).
17. according to the electromagnetic operating device described in any one in claim 2-12, it is characterized in that: also comprise rotary switch assembly, described rotary switch assembly comprises the knob (71) with closing position and open position, and the swing component (72) that driven by described knob (71), adjacent described locking board (22) the one lateral edges settings in described swing component (72) one end, described swing component (72) is driven by described knob (71) in the time that described knob (71) rotates to open position and swings, overcoming the described lateral edges that locking torque promotes described locking board (22) makes the described lock buckling groove (221) of described locking board (22) turn to its notch (221b) and described snap close end (211) opposite position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270451.2U CN203931868U (en) | 2014-05-23 | 2014-05-23 | For the electromagnetic operating device of control and protective switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420270451.2U CN203931868U (en) | 2014-05-23 | 2014-05-23 | For the electromagnetic operating device of control and protective switch |
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| Publication Number | Publication Date |
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| CN203931868U true CN203931868U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420270451.2U Withdrawn - After Issue CN203931868U (en) | 2014-05-23 | 2014-05-23 | For the electromagnetic operating device of control and protective switch |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103971959A (en) * | 2014-05-23 | 2014-08-06 | 佳一电气有限公司 | Electromagnetic operating device for control and protection switch |
| CN106876186A (en) * | 2015-04-27 | 2017-06-20 | 赵牧青 | A kind of transmission ＆ distribution electric switch |
| CN106876181A (en) * | 2015-04-27 | 2017-06-20 | 赵牧青 | Power switch with handover operation mechanism |
| CN109243878A (en) * | 2018-09-14 | 2019-01-18 | 浙江现代电气有限公司 | A kind of three position opening/closing operation mechanisms of change-over switch |
| CN110544920A (en) * | 2018-05-28 | 2019-12-06 | Ls产电株式会社 | Digital protective relay |
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2014
- 2014-05-23 CN CN201420270451.2U patent/CN203931868U/en not_active Withdrawn - After Issue
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971959A (en) * | 2014-05-23 | 2014-08-06 | 佳一电气有限公司 | Electromagnetic operating device for control and protection switch |
| CN103971959B (en) * | 2014-05-23 | 2016-03-09 | 佳一电气有限公司 | For the electromagnetic operating device of control and protective switch |
| CN106876186A (en) * | 2015-04-27 | 2017-06-20 | 赵牧青 | A kind of transmission ＆ distribution electric switch |
| CN106876181A (en) * | 2015-04-27 | 2017-06-20 | 赵牧青 | Power switch with handover operation mechanism |
| CN106876185A (en) * | 2015-04-27 | 2017-06-20 | 赵牧青 | A kind of transmission ＆ distribution electric switch with handover operation mechanism |
| CN106960746A (en) * | 2015-04-27 | 2017-07-18 | 赵牧青 | Power switch |
| CN106960748A (en) * | 2015-04-27 | 2017-07-18 | 赵牧青 | Transmission ＆ distribution electric switch with handover operation mechanism |
| CN110544920A (en) * | 2018-05-28 | 2019-12-06 | Ls产电株式会社 | Digital protective relay |
| CN110544920B (en) * | 2018-05-28 | 2021-06-25 | Ls产电株式会社 | Digital protective relay |
| CN109243878A (en) * | 2018-09-14 | 2019-01-18 | 浙江现代电气有限公司 | A kind of three position opening/closing operation mechanisms of change-over switch |
| CN109243878B (en) * | 2018-09-14 | 2023-10-20 | 浙江现代电气有限公司 | Three-position opening and closing operating mechanism of change-over switch |
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