CN203966852U - For control and protective switch can self-return electromagnetic operating device - Google Patents
For control and protective switch can self-return electromagnetic operating device Download PDFInfo
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- CN203966852U CN203966852U CN201420298477.8U CN201420298477U CN203966852U CN 203966852 U CN203966852 U CN 203966852U CN 201420298477 U CN201420298477 U CN 201420298477U CN 203966852 U CN203966852 U CN 203966852U
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Abstract
The utility model disclosed a kind of for control and protective switch can self-return electromagnetic operating device, 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 electromagnet, electromagnet comprises housing, is fixed on the static iron core of housing one end, is located at the coil in housing, and part is stretched out from housing and the reaction force that overcomes the first spring of transmission mechanism when coil electricity moves axially and the moving iron core of adhesive to static iron core; Electromagnetic operating device also comprises the lock catch unit being connected between moving iron core and the housing of electromagnet, and lock catch unit acts on moving iron core so that moving iron core and static iron core keep adhesive; And automatic unlocking mechanism, automatic unlocking mechanism makes lock catch unit remove the solution lock unit to the locking of moving iron core and static iron core while being included in electromagnetic operating device power-off, and can make to separate the reset unit that lock unit resets; This electromagnetic operating device is reliable and stable and under powering-off state, can make switch self-return to the state of opening a sluice gate.
Description
Technical field
The utility model relate to a kind of for control and protective switch can self-return electromagnetic operating device, belong 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; have far distance automatic controlling and on the spot directly manpower control function; there is panel indication 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 products 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, adopted 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 drive the moving contact of major loop to move by contact action mechanism, moving iron core and static iron core adhesive are simultaneously, moving contact moves to fixed contact closed, 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, for keeping the electromagnetic force of moving iron core and static iron core adhesive to disappear, moving iron core moves to departing from static iron core direction under the reaction force of spring, by contact action mechanism, drive moving contact action to separate with fixed contact 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.Yet, there is following defect in the prior art: 1) in the prior art in actual use, control and protective switch is the long-time connection that the reaction force that relies on electromagnetic force to overcome spring keeps major loop, when therefore 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 needs disconnect major loop, 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, by coil, obtain DC pulse current and also solved the large problem of noise.Yet, still there is following problem in the prior art: 1) in the prior art in actual use, by the magnetic force of permanent magnet, keep the adhesion of the moving iron core of adhesive to compare the suction-combining force of electromagnet less, when 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, during 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 offsetting the suction of permanent magnet, yet, 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, 3) in the prior art, the separating brake of switch is that the suction that sends the reverse electric power counteracting permanent magnet on reverse magnetic force and moving iron core to coil by control circuit is realized, to make switch be transformed into gate-dividing state by "on" position and just must to coil, send by control circuit the suction of the reverse electric power counteracting permanent magnet on reverse magnetic force and moving iron core, like this when there is during accidental power failure, external power supply generation power-off, control circuit sends on reverse magnetic force and moving iron core and also cannot produce reversal point power without normal coil, cause the suction that does not have power can overcome permanent magnet to carry out switch separating brake, thereby when having a power failure, switch is all the time in "on" position, while sending a telegram here like this, electrical current will directly be connected electrical equipment by this control and protective switch, particularly when external power supply power-off when energising repeatedly repeatedly, be unfavorable for the protection of electrical equipment, easily shorten the useful life of electrical equipment, so this control and protective switch is poor to the protective value of electrical equipment in the situation that the energising of power-off repeatedly occurs external power supply.
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, and poor to the protective value of electrical equipment in the situation that the energising of power-off repeatedly occurs external power supply.
Utility model content
For this reason; the protective value that technical problem to be solved in the utility model is the stability of present technology control and protective switch and reliability is low, manufacturing cost is high and occur repeatedly in power-off energising situation at external power supply is poor, so provide a kind of reliable and stable and under powering-off state, can make switch self-return to the state of opening a sluice gate for control and protective switch can self-return electromagnetic operating device.
For solving the problems of the technologies described above; of the present utility model a kind of for control and protective switch can self-return electromagnetic operating device; 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 when described coil electricity moves axially and the moving iron core of adhesive to described static iron core;
Described electromagnetic operating device also comprises
Be connected in the lock catch unit between described moving iron core and the housing of described electromagnet, described lock catch unit acts on described moving iron core so that described moving iron core and described static iron core keep adhesive;
And automatic unlocking mechanism, described automatic unlocking mechanism makes described lock catch unit remove the solution lock unit to the locking of described moving iron core and described static iron core while being included in described electromagnetic operating device power-off, and the reset unit that can make described solution lock unit reset.
Described lock catch unit comprises
Snap close piece, is fixed in the part of stretching out from described 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 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 solution lock unit comprises
Have initial position and promote the promotion iron core of position, when described promotion iron core moves to described promotion position by described initial position, described promotion iron core promotes described locking board deviates from the described snap close end of described snap close piece from described lock buckling groove;
Be communicated with described major loop, and adsorb described promotion iron core under described electromagnetic operating device "on" position, make described promotion iron core rest on the little electromagnet of described initial position;
And be located between described promotion iron core and described little electromagnet, and described promotion iron core is applied with and makes described promotion iron core towards the bias piece of the biasing force of described locking board movement tendency, during described electromagnetic operating device power-off, the described biasing force of described bias piece is pushed to described promotion position by described promotion iron core by described initial position.
Described reset unit comprises the linkage unit that can link with described moving iron core, during described lock catch unit release, described moving iron core is separated with described static iron core under the effect of described first spring of described transmission mechanism, and drives described linkage unit that described promotion iron core is reset to described initial position.
Described linkage unit comprises the connecting plate by being fixedly connected with and reciprocatingly sliding under the drive of described snap close end with the described snap close end of described snap close piece, and by the rotating rotor plate being arranged in described electromagnetic operating device of rotating shaft, when described snap close end is deviate from described lock buckling groove, described connecting plate applies to described rotor plate by force application mechanism and makes described rotor plate around the active force of described rotating shaft rotation, so that described rotor plate promotes described promotion iron core, reset.
Described force application mechanism comprises the jack shaft being molded on described connecting plate, is molded over the jack inserting for described jack shaft on described rotor plate, between described jack and described jack shaft, has glade plane space.
Described rotor plate is made as V-type plate, the first arm and the second arm junction of described V-type plate is located in described rotating shaft, described jack shaft is located at the arm end place of the first arm of described V-type plate, and the arm end of the second arm of described V-type plate can rotate between the described initial position of described promotion iron core and described promotion position.
On the promote-side of described promotion iron core, form the projection that can match with the arm end of the second arm of described V-type plate.
Described bias piece is set in described promotion iron core in the part between described projection and described little electromagnet, between described projection and described bias piece, is also provided with packing ring.
Described lock catch unit also comprises for locking the described snap close end of described back-off structure makes it there will not be the locking mechanism rocking, and described locking mechanism is the spring element that imposes on described snap close end one locking torque in described back-off structure.
Described spring element is that one end is fixed on described locking board, and the other end is fixed on the support that surrounds described electromagnet and the second spring in extended state.
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 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 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.
On described locking board, and described promotion iron core is convenient in moulding, promote the bar shaped projection that described locking board rotates toward the direction that makes described snap close end deviate from described lock buckling groove around described pivot, described bar shaped projection extends to the described promotion position of described promotion iron core.
Also comprise the first guide frame that reciprocatingly sliding of described connecting plate led, described the first guide frame comprises the first gathering sill of being molded on described connecting plate and is arranged on the first guide finger on described upper cover plate, and described pivot is described the first guide finger.
Also comprise the second guide frame that the slip between described initial position and described promotion position is led to described promotion iron core, described the second guide frame comprises the second guide finger and corresponding the second gathering sill being fixedly connected with described little electromagnet of being located at described promotion iron core below.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) described in the utility model for control and protective switch can self-return electromagnetic operating device, described electromagnetic operating device also comprises the lock catch unit being connected between described moving iron core and the housing of described electromagnet, and described lock catch unit acts on described moving iron core so that described moving iron core and described static iron core keep adhesive, and automatic unlocking mechanism, described automatic unlocking mechanism makes described lock catch unit remove the solution lock unit to the locking of described moving iron core and described static iron core while being included in described electromagnetic operating device power-off, and the reset unit that can make described solution lock unit reset, 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 can not thrown off yet, and has greatly improved functional reliability and the stability of electromagnetic operating device, also be provided with the solution lock unit of removing the locking of described lock catch unit when described electromagnetic operating device power-off simultaneously, when namely whole device meets accident power-off or extraneous generation power failure situation, described solution lock unit can contact the locking of described lock catch unit to described moving iron core and described static iron core, thereby make described moving iron core realize separating brake separated with described static iron core, and then avoid switch always in "on" position, while so again sending a telegram here, electrical current can directly not connected electrical equipment by this control and protective switch, particularly can avoid external power supply power-off when energising repeatedly repeatedly, and the electrical current causing is also repeatedly directly connected electrical equipment by this control and protective switch repeatedly, and then damage electrical equipment and switch, and shorten the useful life of electrical equipment and switch, meanwhile, being provided with the reset unit that can make described solution lock unit reset, described solution lock unit can be resetted in time, be convenient to reusing of described solution lock unit.To sum up, described in the utility model for control and protective switch can self-return electromagnetic operating device, not only reliable and stable, and under powering-off state, can make switch self-return to the state of opening a sluice gate, protective value is good.
(2) described in the utility model for control and protective switch can self-return electromagnetic operating device, described lock catch unit comprises snap close piece, be fixed in the part of stretching out from described electromagnet housing of described moving iron core, described snap close piece forms snap close end; Locking board, be arranged on the housing of described 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 solution lock unit comprises the promotion iron core that has initial position and promote position, when described promotion iron core moves to described promotion position by described initial position, described promotion iron core promotes described locking board deviates from the described snap close end of described snap close piece from described lock buckling groove; Be communicated with described major loop, and adsorb described promotion iron core under described electromagnetic operating device "on" position, make described promotion iron core rest on the little electromagnet of described initial position; And be located between described promotion iron core and described little electromagnet, and described promotion iron core is applied with and makes described promotion iron core towards the bias piece of the biasing force of described locking board movement tendency, during described electromagnetic operating device power-off, the described biasing force of described bias piece is pushed to described promotion position by described promotion iron core by described initial position; In the utility model, the setting by back-off structure has prevented to departing from static iron core direction, moving 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; Described lock catch unit and described solution lock unit is simple in structure simultaneously, is easy to processing, low cost of manufacture.
(3) described in the utility model for control and protective switch can self-return electromagnetic operating device, described reset unit comprises the linkage unit that can link with described moving iron core, during described lock catch unit release, described moving iron core is separated with described static iron core under the effect of described first spring of described transmission mechanism, and drives described linkage unit that described promotion iron core is reset to described initial position; In the utility model, described linkage unit can be when described moving iron core be separated with described static iron core, in time described promotion iron core is reset to described initial position so that the reusing of described solution lock unit.
(4) described in the utility model for control and protective switch can self-return electromagnetic operating device, described rotor plate is made as V-type plate, the first arm and the second arm junction of described V-type plate is located in described rotating shaft, described jack shaft is located at the arm end place of the first arm of described V-type plate, and the arm end of the second arm of described V-type plate can rotate between the described initial position of described promotion iron core and described promotion position; Described interlock plate is simple in structure, and motion is reliable, and it is little to take up room, and is convenient to the setting of miscellaneous part.
(5) described in the utility model for control and protective switch can self-return electromagnetic operating device; on the promote-side of described promotion iron core, form the projection that can match with the arm end of the second arm of described V-type plate, the arm end that the second arm of described V-type plate is convenient in the setting of described projection promotes described promotion iron core and resets.
(6) described in the utility model for control and protective switch can self-return electromagnetic operating device, 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 electromagnet housing, and the notch of described lock buckling groove is towards described snap close end and be connected with surface; This kind of structure setting utilized described moving iron core to stretch out the space of housing parts top, compact conformation better.
(7) described in the utility model for control and protective switch can self-return electromagnetic operating device, on described locking board, and described promotion iron core is convenient in moulding, promote the bar shaped projection that described locking board rotates toward the direction that makes described snap close end deviate from described lock buckling groove around described pivot, described bar shaped projection extends to the described promotion position of described promotion iron core; The setting of described bar shaped projection makes described promotion iron core only need promote gently described bar shaped projection can to make described locking board rotate toward the direction that makes described snap close end deviate from described lock buckling groove around described pivot, thereby described snap close end is deviate from easily from described lock buckling groove.
Accompanying drawing explanation
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 not state diagram during adhesive of moving iron core and static iron core after automatic unlocking mechanism of removing in can self-return electromagnetic operating device described in the utility model;
Fig. 2 is another visual angle figure of Fig. 1;
Fig. 3 be described in the utility model can self-return electromagnetic operating device in not state diagram during adhesive of moving iron core and static iron core;
Fig. 4 is the state diagram while removing moving iron core and static iron core adhesive after automatic unlocking mechanism in can self-return electromagnetic operating device described in the utility model;
Fig. 5 be described in the utility model can self-return electromagnetic operating device in state diagram when moving iron core and static iron core adhesive;
Fig. 6 is automatic unlocking mechanism partial enlarged drawing in Fig. 5;
Fig. 7 is locking board described in the utility model, snap close piece, electromagnet housing upper cover plate, and the assembling schematic diagram of moving iron core;
Fig. 8 is the exploded view of electromagnet in the utility model;
Fig. 9 is locking board schematic diagram in the utility model;
Figure 10 is connecting plate schematic diagram in the utility model;
Figure 11 is rotor plate schematic diagram in the utility model;
In figure, Reference numeral is expressed as: 1-electromagnet; 11-moves iron core; 12-static iron core; 13-upper cover plate; 13a-pivot; 14-coil; 21-snap close piece; 211-snap close end; 211a-surface; 22-locking board; 221-lock buckling groove; 221b-notch; 222-lead-in chamfered; 223-pivoting hole; 226-bar shaped projection; 61-the first spring; 71-knob; 8-major loop; 91-promotes iron core; The little electromagnet of 92-; 93-bias piece; 94-projection; 95-packing ring; 101-connecting plate; 103-rotor plate; 104-rotating shaft; 105-jack shaft; 106-the first gathering sill; 107-the second guide finger; 108-the second gathering sill; 109-jack.
Embodiment
Below with reference to accompanying drawing, use following execution mode to be further elaborated the utility model.
As shown in Fig. 1-11, a kind of described in the present embodiment for control and protective switch can self-return electromagnetic operating device, comprise electromagnet 1, thereby and can control switch major loop 8 close a floodgate or the transmission mechanism of separating brake with moving iron core 11 interlock of described electromagnet 1, described electromagnet 1 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 the first spring 61 of described transmission mechanism when 14 energising of described coil moves axially and the moving iron core 11 of adhesive to described static iron core 12,
Described electromagnetic operating device also comprises the lock catch unit being connected between described moving iron core 11 and the housing of described electromagnet 1, and 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; And automatic unlocking mechanism, described automatic unlocking mechanism makes described lock catch unit remove the solution lock unit to the locking of described moving iron core 11 and described static iron core 12 while being included in described electromagnetic operating device power-off, and the reset unit that can make described solution lock unit reset.
In the present embodiment, adopt mechanical lock catch unit to keep moving iron core 11 and static iron core 12 adhesives, even if meet with sharp pounding while making work, moving iron core 11 can not thrown off with the adhesive of static iron core 12 yet, has greatly improved functional reliability and the stability of electromagnetic operating device, also be provided with the solution lock unit of removing the locking of described lock catch unit when described electromagnetic operating device power-off simultaneously, when namely whole device meets accident power-off or extraneous generation power failure situation, described solution lock unit can contact the locking of described lock catch unit to described moving iron core 11 and described static iron core 12, thereby make described moving iron core 11 and the separated separating brake of realizing of described static iron core 12, and then avoid switch always in "on" position, while so again sending a telegram here, electrical current can directly not connected electrical equipment by this control and protective switch, particularly can avoid external power supply power-off when energising repeatedly repeatedly, and the electrical current causing is also repeatedly directly connected electrical equipment by this control and protective switch repeatedly, and then damage electrical equipment and switch, and shorten the useful life of electrical equipment and switch, meanwhile, being provided with the reset unit that can make described solution lock unit reset, described solution lock unit can be resetted in time, be convenient to reusing of described solution lock unit.To sum up, described in the present embodiment for control and protective switch can self-return electromagnetic operating device, not only reliable and stable, and under powering-off state, can make switch self-return to the state of opening a sluice gate, protective value is good.
Described lock catch unit comprises snap close piece 21, is fixed in the part of stretching out from described 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 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 moves axially to described in adhesive during static iron core 12, with the axially movable described snap close end 211 of described moving iron core 11, snap in described lock buckling groove 221 and form the back-off structure that prevents that described snap close end 211 from departing to opposite shaft orientation;
Described solution lock unit comprises the promotion iron core 91 that has initial position and promote position, when described promotion iron core 91 moves to described promotion position by described initial position, described promotion iron core 91 promotes described locking board 22 deviates from the described snap close end 211 of described snap close piece 21 from described lock buckling groove 221; Be communicated with described major loop 8, and under described electromagnetic operating device "on" position, adsorb described promotion iron core 91, make described promotion iron core 91 rest on the little electromagnet 92 of described initial position; And be located between described promotion iron core 91 and described little electromagnet 92, and described promotion iron core 91 is applied with and makes described promotion iron core 91 towards the bias piece 93 of the biasing force of described locking board 22 movement tendencies, during described electromagnetic operating device power-off, the described biasing force of described bias piece 93 is pushed to described promotion position by described promotion iron core 91 by described initial position.In the present embodiment, the setting by back-off structure has prevented to departing from static iron core 12 directions, moving in the situation that electromagnetic force disappears with the moving iron core 11 of snap close end 211 one, without energising in the situation that, has kept the adhesive of moving iron core 11 and static iron core 12; Described lock catch unit and described solution lock unit is simple in structure simultaneously, is easy to processing, low cost of manufacture.
Described reset unit comprises the linkage unit that can link with described moving iron core 11, during described lock catch unit release, described moving iron core 11 is separated with described static iron core 12 under the effect of described first spring 61 of described transmission mechanism, and drives described linkage unit that described promotion iron core 91 is reset to described initial position; In the present embodiment, described linkage unit can be when described moving iron core 11 be separated with described static iron core 12, in time described promotion iron core 91 is reset to described initial position so that the reusing of described solution lock unit.
As preferred embodiment, described linkage unit comprises the connecting plate 101 by being fixedly connected with and reciprocatingly sliding under the drive of described snap close end 211 with the described snap close end 211 of described snap close piece 21, and by the rotating rotor plate 103 being arranged in described electromagnetic operating device of rotating shaft 104, when described snap close end 211 is deviate from described lock buckling groove 221, described connecting plate 101 applies to described rotor plate 103 by force application mechanism and makes described rotor plate 103 around the active force of described rotating shaft 104 rotations, so that described rotor plate 103 promotes described promotion iron core 91, reset.Wherein, described force application mechanism comprises the jack shaft 105 being molded on described connecting plate 101, be molded over the jack 109 inserting for described jack shaft 105 on described rotor plate 103, between described jack 109 and described jack shaft 105, there is glade plane space, described glade plane space can rotate smoothly described rotor plate 103 under the effect of described connecting plate 101, and is not stuck.
Further, as shown in figure 11, described rotor plate 103 is made as V-type plate, the first arm and the second arm junction of described V-type plate is located in described rotating shaft 104, described jack shaft 105 is located at the arm end place of the first arm of described V-type plate, and the arm end of the second arm of described V-type plate can rotate between the described initial position of described promotion iron core 91 and described promotion position; Described interlock plate is simple in structure, and motion is reliable, and it is little to take up room, and is convenient to the setting of miscellaneous part.
Wherein, on the promote-side of described promotion iron core 91, form the projection 94 that can match with the arm end of the second arm of described V-type plate; The arm end that the second arm of described V-type plate is convenient in the setting of described projection 94 promotes described promotion iron core 91 resets.
Described bias piece 93 is set in described promotion iron core 91 in the part between described projection 94 and described little electromagnet 92, between described projection 94 and described bias piece 93, is also provided with packing ring 95; In the present embodiment, described bias piece 93 is made as spring, and described little electromagnet 92 is made as the little electromagnet of direct current.
On the basis of above-described embodiment, described lock catch unit also comprises for locking the described snap close end 211 of described back-off structure makes it there will not be the locking mechanism rocking, and described locking mechanism is the spring element that imposes on described snap close end 211 1 locking torques in described back-off structure.Described spring element is that one end is fixed on described locking board 22, and the other end is fixed on the support that surrounds described electromagnet 1 and the second spring in extended state.
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, 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 electromagnet 1 housing, and the notch 221b of described lock buckling groove 221 is connected towards described snap close end 211 and with described surperficial 211a; This kind of structure setting utilized described moving iron core 11 to stretch out the space of housing parts top, compact conformation better.
The described upper cover plate 13 of described 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.On described locking board 22, also the bar shaped projection 226 that the described locking board 22 of described promotion iron core 91 promotion rotates toward the direction that makes described snap close end 211 deviate from described lock buckling groove 221 around described pivot 13a is convenient in moulding, and described bar shaped projection 226 extends to the described promotion position of described promotion iron core 91.The setting of described bar shaped projection 226 makes 91 of described promotion iron cores need promote gently described bar shaped projection 226 can to make described locking board 22 rotate toward the direction that makes described snap close end 211 deviate from described lock buckling groove 221 around described pivot 13a, thereby described snap close end 211 is deviate from easily from described lock buckling groove 221.
In the present embodiment, also comprise the first guide frame that reciprocatingly sliding of described connecting plate 101 led, described the first guide frame comprises and is molded over the first gathering sill 106 on described connecting plate 101 and is arranged on the first guide finger on described upper cover plate 13, and described pivot 13a is described the first guide finger.Further, also comprise the second guide frame that the slip between described initial position and described promotion position is led to described promotion iron core 91, described the second guide frame comprises the second guide finger 107 and corresponding the second gathering sill 108 being fixedly connected with described little electromagnet 92 of being located at described promotion iron core 91 belows.
Described in the present embodiment a kind of for control and protective switch can self-return electromagnetic operating device specific works process as follows:
The course of work of the electromagnetic operating device of the present embodiment is below described with reference to the accompanying drawings:
As shown in Figure 1,2 and 3, described electromagnetic operating device is state before coil 14 energisings, described moving iron core 11 and not adhesive of static iron core 12, and the knob 71 of control switch opening and closing is in its open position, and described major loop 8 is in gate-dividing state.
Now, rotate described knob 71 to its closing position, described coil 14 energisings, the reaction force that described moving iron core 11 overcomes described first spring 61 of described transmission mechanism under electromagnetic force moves axially to described static iron core 12, with described moving iron core 11 together the snap close end 211 of mobile snap close piece 21 lock buckling groove 221 along the lead-in chamfered 222 of described locking board 2222 to axial correspondence slide, during slip, snap close piece 21 promotes counterclockwise rotation of locking board 22, when described moving iron core 11 moves to described static iron core 12 adhesive, snap close end 211a slips into and forms described back-off structure from the notch 221b of lock buckling groove 221, described major loop 8 closes a floodgate.Now, the state of electromagnetic operating device is as shown in Fig. 4,5 and 6;
When electromagnetic operating device does not need work, rotate described knob 71 to its open position, a lateral edges that drives described transmission mechanism to promote described locking board 22 during described knob 71 rotation rotates it in the counterclockwise direction, thereby make locking board 22 turn to its notch 221b and snap close end 211 over against position, described snap close end 211 has lost conflict, thereby with described moving iron core 11, along opposite shaft orientation, move under the pulling force effect of the first spring 61, from the notch 221b of lock buckling groove 221, deviate from and reset, described major loop 88 separating brakes, as shown in Figure 1,2 and 3 state;
When described electromagnetic operating device meets accident power-off or external power failure, the described snap close end 211 of described snap close piece 21 is still by described lock buckling groove 221 lockings of described locking board 22, and described moving iron core 11 does not occur separated with described static iron core 12, now, described little electromagnet 92 dead electricity, described promotion iron core 9191 is under the effect of the biasing force of described bias piece 93, and by described initial position, move to described promotion position under the cooperation of described the second guide frame, and toward the direction that makes described snap close end 211 deviate from described lock buckling groove 221, rotate around described pivot 13a by promoting the described locking board 22 of described bar shaped projection 226 promotion, thereby the described snap close end 211 of described snap close piece 21 is deviate from from the described lock buckling groove 221 of described locking board 22, meanwhile, described moving iron core 11 under the effect of described first spring 61 of described transmission mechanism to away from described static iron core 12 axial motions, and under the cooperation of described the first guide frame, drive described connecting plate 101 to slide, described connecting plate 101 promotes described jack 109 by the described jack shaft 105 in described force application mechanism and then described rotor plate 103 is rotated around described rotating shaft 104, described rotor plate 103 offsets with described projection 94, and make described promotion iron core 91 be repositioned to described promotion position by described promotion position by compressing described projection 94, as Fig. 4, state shown in 5 and 6, now, if during described external power supply incoming call, knob 71 is rotated to closing position by open position, described coil 14 energisings, described moving iron core 11 moves to described static iron core 12 under electromagnetic force, and drive described connecting plate 101 to move along equidirectional, when described connecting plate 101 moves, by described jack shaft 105, promoting described rotor plate 103 rotates, by the end that is pressed in described projection 94, by rotation, be separated from described promotion iron core 91, during in order to next described external power supply power-off, use, rotate the state of opening.
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 exhaustive without also giving all execution modes.And the apparent variation of being extended out thus or change are still among the protection range in the invention.
Claims (15)
- One kind for control and protective switch can self-return electromagnetic operating device, comprise electromagnet (1), and with the moving iron core (11) of described electromagnet (1) 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 when 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 electromagnetic operating device also comprisesBe connected in the lock catch unit between described moving iron core (11) and the housing of described electromagnet (1), 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);And automatic unlocking mechanism, described automatic unlocking mechanism makes described lock catch unit remove the solution lock unit to the locking of described moving iron core (11) and described static iron core (12) while being included in described electromagnetic operating device power-off, and the reset unit that can make described solution lock unit reset.
- 2. according to claim 1 can self-return electromagnetic operating device, it is characterized in that:Described lock catch unit comprisesSnap close piece (21), is fixed in the part of stretching out from described 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 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;Described solution lock unit comprisesThere is initial position and promote the promotion iron core (91) of position, when described promotion iron core (91) moves to described promotion position by described initial position, described promotion iron core (91) promotes described locking board (22) deviates from the described snap close end (211) of described snap close piece (21) from described lock buckling groove (221);Be communicated with described major loop, and adsorb described promotion iron core (91) under described electromagnetic operating device "on" position, make described promotion iron core (91) rest on the little electromagnet (92) of described initial position;And be located between described promotion iron core (91) and described little electromagnet (92), and described promotion iron core (91) is applied with and makes described promotion iron core (91) towards the bias piece (93) of the biasing force of described locking board (22) movement tendency, during described electromagnetic operating device power-off, the described biasing force of described bias piece (93) is pushed to described promotion position by described promotion iron core (91) by described initial position.
- 3. according to claim 2 can self-return electromagnetic operating device, it is characterized in that: described reset unit comprises the linkage unit that can link with described moving iron core (11), during described lock catch unit release, described moving iron core (11) is separated with described static iron core (12) under the effect of described first spring (61) of described transmission mechanism, and drives described linkage unit that described promotion iron core (91) is reset to described initial position.
- 4. according to claim 3 can self-return electromagnetic operating device, it is characterized in that: described linkage unit comprises the connecting plate (101) by being fixedly connected with and reciprocatingly sliding under the drive of described snap close end (211) with the described snap close end (211) of described snap close piece (21), and by the rotating rotor plate (103) being arranged in described electromagnetic operating device of rotating shaft (104), when described snap close end (211) is deviate from described lock buckling groove (221), the active force that described connecting plate (101) applies to described rotor plate (103) to make described rotor plate (103) to rotate around described rotating shaft (104) by force application mechanism, so that promoting described promotion iron core (91), described rotor plate resets.
- 5. according to claim 4 can self-return electromagnetic operating device, it is characterized in that: described force application mechanism comprises the jack shaft (105) being molded on described connecting plate (101), be molded over the upper jack inserting for described jack shaft (105) of described rotor plate (103), between described jack and described jack shaft (105), there is glade plane space.
- 6. according to claim 5 can self-return electromagnetic operating device, it is characterized in that: described rotor plate (101) is made as V-type plate, the first arm and the second arm junction of described V-type plate is located in described rotating shaft (104), described jack shaft (105) is located at the arm end place of the first arm of described V-type plate, and the arm end of the second arm of described V-type plate can rotate between the described initial position of described promotion iron core (91) and described promotion position.
- 7. according to claim 6 can self-return electromagnetic operating device, it is characterized in that: on the promote-side of described promotion iron core (91), form the projection (94) that can match with the arm end of the second arm of described V-type plate.
- 8. according to claim 7 can self-return electromagnetic operating device, it is characterized in that: described bias piece (93) is set in described promotion iron core (91) and is positioned in the part between described projection (94) and described little electromagnet (92), between described projection (94) and described bias piece (93), is also provided with packing ring (95).
- According to described in any one in claim 2-8 can self-return electromagnetic operating device, it is characterized in that: described lock catch unit also comprises for locking the described snap close end (211) of described back-off structure makes it there will not be the locking mechanism rocking, and described locking mechanism is the spring element that imposes on described snap close end (211) one locking torques in described back-off structure.
- 10. according to claim 9 can self-return electromagnetic operating device, it is characterized in that: described spring element is that one end is fixed on described locking board (22), and the other end is fixed on the support (16) that surrounds described electromagnet (1) and the second spring (23) in extended state.
- 11. according to claim 10 can self-return electromagnetic operating device, 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 electromagnet (1) housing, and the notch (221b) of described lock buckling groove (221) is connected towards described snap close end (211) and with surface (211a).
- 12. according to claim 11 can self-return electromagnetic operating device, it is characterized in that: the described upper cover plate (13) of described 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.
- 13. according to claim 12 can self-return electromagnetic operating device, it is characterized in that: the upper also moulding of described locking board (22) is convenient to described promotion iron core (91) and is promoted the bar shaped projection (226) that described locking board (22) rotates toward the direction that makes described snap close end (211) deviate from described lock buckling groove (221) around described pivot (13a), and described bar shaped projection (226) extends to the described promotion position of described promotion iron core (91).
- 14. according to claim 13 can self-return electromagnetic operating device, it is characterized in that: also comprise the first guide frame that reciprocatingly sliding of described connecting plate (101) led, described the first guide frame comprises the first gathering sill (106) being molded on described connecting plate and is arranged on the first guide finger on described upper cover plate, and described pivot (13a) is described the first guide finger.
- 15. according to claim 14 can self-return electromagnetic operating device, it is characterized in that: also comprise the second guide frame that the slip between described initial position and described promotion position is led to described promotion iron core (91), described the second guide frame comprises the second guide finger (107) and corresponding the second gathering sill (108) being fixedly connected with described little electromagnet of being located at described promotion iron core below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298477.8U CN203966852U (en) | 2014-06-06 | 2014-06-06 | For control and protective switch can self-return electromagnetic operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298477.8U CN203966852U (en) | 2014-06-06 | 2014-06-06 | For control and protective switch can self-return electromagnetic operating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203966852U true CN203966852U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298477.8U Withdrawn - After Issue CN203966852U (en) | 2014-06-06 | 2014-06-06 | For control and protective switch can self-return electromagnetic operating device |
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| Country | Link |
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| CN (1) | CN203966852U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996552A (en) * | 2014-06-06 | 2014-08-20 | 佳一电气有限公司 | Automatic reset electromagnetic operating device for control and protection switch |
| CN110098094A (en) * | 2019-06-21 | 2019-08-06 | 安徽科盟电子科技有限公司 | A kind of breaker electromagnetic operating mechanism |
-
2014
- 2014-06-06 CN CN201420298477.8U patent/CN203966852U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103996552A (en) * | 2014-06-06 | 2014-08-20 | 佳一电气有限公司 | Automatic reset electromagnetic operating device for control and protection switch |
| CN103996552B (en) * | 2014-06-06 | 2016-04-13 | 佳一电气有限公司 | For control and protective switch can self-return electromagnetic operating device |
| CN110098094A (en) * | 2019-06-21 | 2019-08-06 | 安徽科盟电子科技有限公司 | A kind of breaker electromagnetic operating mechanism |
| CN110098094B (en) * | 2019-06-21 | 2023-11-21 | 安徽科盟电子科技有限公司 | Electromagnetic operating mechanism of circuit breaker |
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