CN1728296A - Solenoid operator and solenoid-operated switching device and control device for electromagnet - Google Patents
Solenoid operator and solenoid-operated switching device and control device for electromagnet Download PDFInfo
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- CN1728296A CN1728296A CN 200510093090 CN200510093090A CN1728296A CN 1728296 A CN1728296 A CN 1728296A CN 200510093090 CN200510093090 CN 200510093090 CN 200510093090 A CN200510093090 A CN 200510093090A CN 1728296 A CN1728296 A CN 1728296A
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Abstract
The present invention provides a solenoid-operated device and a solenoid-operated switching device for operating a switch by using electromagnetic force and a control device for controlling an electromagnet are provided to operate a switching device such as a circuit breaker by using the electromagnetic force. An electromagnet 14 is arranged in a central lower part of a case 10, a capacitor 16 and a control board 18 are arranged on each side of the electromagnet 14, an auxiliary contact 34, a display board 36, and a counter 38 are arranged on the upper side of the electromagnet 14, the auxiliary contact 34, the display board 36, and the counter 38 are fit to a plate 56 to unite them with the electromagnet 14, and the capacitor 16 and the control board 18 are made removable from a front.
Description
The application is that application number is 200310103229.2, the applying date is on October 28th, 2003, denomination of invention is divided an application for the patent application of " electromagnetic operating device and solenoid-operated switching device and electromagnet control device ".
Technical field
The present invention relates to electromagnetic operating device and solenoid-operated switching device and electromagnet control device, especially relate to the electromagnetic operating device that utilizes switches such as electromagnetic force operating breaker and solenoid-operated switching device and control electromagnet control device as the driving of the electromagnet of the drive source that is used for driving switch.
Background technology
When switches such as operating breaker, can utilize the electromagnetic force that produces by electromagnet operate (with reference to the 2nd page the-the 4th page in patent documentation TOHKEMY 2002-217026 communique, Fig. 1-Fig. 3).
On the other hand, when drive magnet, tested that the capacitor that stores the electric energy be used to encourage magnet spool being set, response the close command of switch or open command, control are supplied with by capacitor electromagnet coil electric current conducting direction control circuit board so that electromagnet stably work.In this case, by being made up, electromagnetic operating device and switch can constitute solenoid-operated switching device.
For example, with the combination of electromagnetic operating device and magnetic latched Electromagnetically-operating type circuit breaker, when constituting solenoid-operated switching device, formations such as microcomputer, logic IC (CPLD/FPGA) or mechanical relay can be used, close command, the desired electric current of open command can be constituted and be the small power switch device about tens of milliamperes.
Adjacent with circuit breaker etc. when electromagnetic operating device is set, adopt electromagnet, capacitor, control circuit board etc. all are loaded in the shell structure that electromagnet and switch is coupled together by linkage.Yet, in the time of in electromagnet, capacitor and control circuit board are loaded on housing (shell),, therefore, when arranging component parts, must consider installation exercise, maintenance maintenance operation etc. owing to carry out operation in the narrow space of the portion in the enclosure of having to.
In addition, with regard to electromagnet,, attempt to utilize standard-sized steel pipe by regulations such as JIS standards as return yoke in order to reduce cost.But, when switch such as circuit breaker and electromagnet are co-located in the shell, though common structure is that electromagnet is cased than switch more by the front of housing on one side; But because the depth dimensions of shell is littler than width dimensions, take up space, preferably the section configuration of electromagnet is done rectangularity in order to reduce.Thereby the structure that is adopted is: when the sheet metal lamination is constituted return yoke, adopt tetragonal section to constitute movable core, secured core and coil.But, in order to constitute movable core etc. with the square section, just should make standard-sized round steel pipe form square, thereby when increasing machining period and assembling man-hour, when constituting return yoke, have to increase amount of parts and raise the cost with the sheet metal lamination.
In addition, when using control circuit board control electromagnet, when must control energising direction to electromagnet coil according to close command or open command, for control circuit board is arranged on the electromagnetic operating device, just must make real electronic component, the component of machine miniaturization that is contained on the control circuit board.And then, when constituting above-mentioned solenoid-operated switching device, because close command, the desired electric current of open command are about tens of milliamperes, the relay as open command or close command being exported to circuit breaker can adopt popular in recent years digital relay.
But, as relay to circuit breaker output open command, the analog relay that also has a large amount of old type tubes when using solenoid-operated switching device on the distribution board of analog relay is housed, then can not form the path of the clearance order of necessary several amperes of left and right sides electric currents.
Summary of the invention
One of purpose of the present invention is to provide a kind of electromagnetic operating device, and it has layout, the structure that can improve operating characteristics.
Two of purpose of the present invention is to provide a kind of operation electriomagnet device, and it both can reduce and makes required man-hour, also can constitute the depth dimensions electromagnet littler than width dimensions.
Three of purpose of the present invention is to provide a kind of electromagnet control device, and it can be used in according to the control device miniaturization of close command and open command control to the energising direction of electromagnet coil.
Four of purpose of the present invention is to provide a kind of solenoid-operated switching device, and it can be applied to digital relay and analog relay.
In order to realize above-mentioned first goal of the invention, the feature of electromagnetic operating device of the present invention is: the axle that will be connected with the movable core of electromagnet by linkage is connected to switching device, when the actuating force that produces in the electromagnetic force that is configured for producing with electromagnet passes to the electromagnetic operating device of switching device, with the electromagnet is the center, configuration stores and to be used for electromagnet coil is carried out the capacitor of electric energy of excitation and response close command or the open command to switching device independently respectively, control is from the control circuit board of the energising direction of the electric current of capacitor supply solenoid.
In addition, in order to realize above-mentioned second goal of the invention, the feature of electromagnetic operating device of the present invention is: its structure is, the axle that will be connected with the movable core of electromagnet by linkage is connected to switching device, when the actuating force that produces in the electromagnetic force that is configured for producing with electromagnet passes to the electromagnetic operating device of switching device, use movable core, secured core, coil and iron cover plate constitute above-mentioned electromagnet, with profile is that oblong cylindrical body constitutes above-mentioned iron cover plate, and the minor axis that makes above-mentioned cylindrical body consistently disposes with the depth direction of above-mentioned switching device on one side.
In addition, in order to realize above-mentioned the 3rd goal of the invention, the feature of electromagnet control device of the present invention is: its structure is, supply with the power-on circuit of solenoid as the electric energy of the capacitor that will be stored, have the release mechanism that when open command takes place, is formed for making the power-on circuit that movable core and secured core leave mutually from the electric energy of power supply; As the power-on circuit opposite to the energising direction of above-mentioned solenoid, has the close mechanism that when close command takes place, is formed for making the power-on circuit that above-mentioned movable core and secured core be in contact with one another with the power-on circuit of above-mentioned release mechanism; The structure of above-mentioned release mechanism comprises the above-mentioned open command of response and inserts the transfer relay that is used for making the power-on circuit that above-mentioned movable core and secured core leave mutually; The structure of above-mentioned close mechanism comprises the above-mentioned close command of response and inserts the transfer relay that is used for making the power-on circuit that above-mentioned movable core and secured core be in contact with one another.
Have again, in order to realize above-mentioned the 4th goal of the invention, the feature of solenoid-operated switching device of the present invention is to have: electromagnet and capacitor and control circuit board electromagnetic operating device are arranged, with the switching device (circuit breaker) that is connected with above-mentioned electromagnetic operating device by linkage; And be provided with by resistance the part of above-mentioned open command bypass circuit to above-mentioned electrical power by-pass.
Description of drawings
Fig. 1 is the front view of electromagnetic operating device.
Fig. 2 is the end view of solenoid-operated switching device.
Fig. 3 is the key diagram of the action when being used for description status testing agency closure.
Fig. 4 is the key diagram of the action when being used for the disconnection of description status testing agency.
Fig. 5 (a) is the end view that is used to illustrate the state before blocking lever rises.
Fig. 5 (b) is the front view of its major part.
Fig. 6 (a) is the end view that is used to illustrate the state after blocking lever rises.
Fig. 6 (b) is the front view of its major part.
Fig. 7 (a) is used to illustrate that blocking lever has been in the end view of the state in the time of can not rising.
Fig. 7 (b) is the front view of its major part.
Fig. 8 (a) is the end view that is used to illustrate the manual handover operation when having front cover.
Fig. 8 (b) is the front view of its major part.
Fig. 9 (a) is the end view that is used to illustrate manual access operation when laying down front cover.
Fig. 9 (b) is the front view of its major part.
Fig. 9 (c) is the vertical view of the employed handle of manual access operation.
Figure 10 is the frame assumption diagram that is used to illustrate that the circuit of electromagnet control device constitutes.
Figure 11 is the circuit structure diagram of charging circuit.
Figure 12 is used to illustrate that charging finishes the key diagram of the hysteresis characteristic of back testing circuit.
Figure 13 is the performance plot that is used to illustrate the CO action of circuit breaker.
Figure 14 is used to illustrate the O action of circuit breaker and the performance plot that CO moves.
Figure 15 is the performance plot that is used for the relation of illustrated capacitor charging voltage and capacitor rechargeable energy.
Figure 16 is the block diagram that is used to illustrate the circuit structure of control logic portion.
Figure 17 is the timing diagram of the action of the control logic portion when being used to closed action is described.
Figure 18 is the timing diagram that is used to the action of the control logic portion when disconnecting action that illustrates.
Figure 19 is the frame assumption diagram of other embodiment of expression electromagnet control device.
Figure 20 (a) (b) is the circuit structure diagram that is used to illustrate the operating principle of overcurrent relay.
Figure 21 is the frame assumption diagram of the embodiment when being illustrated in the resistance that the configuration bypass is used in the solenoid-operated switching device.
Figure 22 is the stereogram when the relaying box is set in solenoid-operated switching device.
Figure 23 is the line assumption diagram when having connected the relaying box in solenoid-operated switching device.
Figure 24 is the sectional arrangement drawing of electromagnet.
Figure 25 is the sectional arrangement drawing along A A line shown in Figure 24.
Figure 26 is the sectional arrangement drawing along B-B line shown in Figure 24.
Figure 27 is the sectional arrangement drawing along C-C line shown in Figure 24.
Figure 28 is the key diagram that is used to illustrate the drawing method of iron cover plate.
Figure 29 is the exploded perspective view of electromagnet.
Embodiment
Below, one embodiment of the present of invention are described with reference to the accompanying drawings.Fig. 1 is the front view of electromagnetic operating device of the present invention, and Fig. 2 is the end view that comprises the solenoid-operated switching device of electromagnetic operating device and circuit breaker.In Fig. 1 and Fig. 2, electromagnetic operating device has the shell 10 of the box made, and shell 10 has opening 12 in the front, at the positive detachable front cover plate (omitting among the figure) that is fixed with freely of shell 10.In this shell 10, with electromagnet 14 is that the center disposes capacitor 16 and control circuit board 18 respectively independently, electromagnet 14 usefulness bolts, nut are fixed on the middle position of outer casing bottom, and capacitor 16 is separately fixed on two relative sides of shell with control circuit board 18.That is, capacitor 16 usefulness bolts, nut are fixed on the left surface of shell 10, and control circuit board 18 usefulness bolts, nut and be fixed on through liner 20 on the right flank of shell 10.
Have again, in shell 10, be equipped with in secondary plug 22, the cable 24,26,28,30, auxiliary contact 34, display panel 36, the counter 38 of detection as the state detection mechanism of vacuum circuit-breaker (vacuum tube) 32 states of switch also is housed.Secondary plug 22 usefulness bolts, nut are fixed on the top of shell 10, are connected with power supply with cable, from the signal cable of digital relay or analogue relay etc. on secondary plug 22.Cable 24 is connected on the positive pole and negative pole of capacitor 16, and cable 26 is connected on the auxiliary contact 34, and cable 28 is connected on the control circuit board 18 by plug connector 40.Cable 28 and cable 30 are crimped on the position of terminal 43 when installation exercise.Limit switch 42 is fixed on the bottom of shell 10 by hardware 44.This limit switch 42 shows that according to being configured in the shell 10 and can coming make and break contact along the position of vertical direction lifting blocking lever 46 freely the signal of the on off state of contact is supplied with control circuit board 18.
The electric energy that control circuit board 18 is obtained supplying with by secondary plug 22, accept the signal of close command or open command simultaneously by digital relay or analogue relay etc., also real on it logic section driving, that carry out logical operation that is used to control electromagnet 14 is housed, is used for charging circuit that capacitor 16 is discharged and recharged, be used for the relay and the relay tip (figure omits) of the energising direction of control coil (electromagnet coil) 48.Have again, the also real light-emitting diode 50 that shows that capacitor 16 chargings finish that is equipped with on control circuit board 18, simultaneously, also real being equipped with is used for by manual operations " access " that vacuum circuit-breaker 32 sends close command being used button (push-button switch) 52, is used for by manual operations " cut-out " button (push-button switch) 54 to vacuum circuit-breaker 32 output open command (clearance order).
Axle 62 is configured in the central authorities of electromagnet 14 and disposes along vertical direction.In addition, the structure of axle 62 is: insert in the through hole 82 of plate 66 on its top, and its underpart is inserted the through hole 84 interior also liftables of supporting bracket 76 and is free to slide.On this outer peripheral face of 62, fixing movable core 58, treadmill 64,66, connecting axle 88 by bearing pin 86 in the bottom of axle 62 with nut.Though two treadmills of size (steel plate) 64,66 are installed on axle 62, this be for the relative distance that increases top movable dull and stereotyped 64 and iron cover plate 70 to reduce leakage flux to iron cover plate 70.And then, connecting supporting bracket 90 in the bottom of axle 62, the axle center of being equipped with between supporting bracket 90 and base 80 with axle 62 is the cut-out spring 92 that the ring-type of circle is drawn at the center.This cut-out spring 92 is made and it can be applied by 90 pairs of axles 62 of supporting bracket be used to make movable core 58 to leave the elastic force of secured core 60.In addition, dispose permanent magnet 68 around movable core 58, permanent magnet 68 is fixed on the mounting panel 74.Secured core 60 is fixed by bolts on the mounting panel 76.
In addition, the bottom of axle 88 is connected with a pair of lever 96 by bearing pin 94.Lever 96 constitutes the key element of linkage of the direction of transfer of conversion actuating force, and is connected with bar 100 by axle 98; And this actuating force produces with the electromagnetic force that electromagnet 14 produces.Bar 100 is connected with connecting plate 104 by bearing pin 102.In addition, fixing latch 106 in the end of lever 96; This latch 106 when vacuum circuit-breaker 32 disconnects be fixed on base 80 on stop contact with bolt 108, with prevention lever 96 to base 80 1 side shiftings.
But connecting plate 104 easy on and off move and insert in the insulating support 110 that is fixed on the base 80 (reciprocating motion), on one side form pressure-bearing spring bearer plate 112 on the top of connecting plate 104.Have through hole on pressure-bearing spring bearer plate 112, insert in this through hole the axial end of insulating bar 114, is fixed with bolt 118 at this end through hole packing ring 116.And then, between the bottom of pressure-bearing spring bearer plate 112 and insulating bar 114, pressure-bearing spring 120 is housed.When the top of insulating bar 114 is connected with movable feeder line 122 by flexible conductor 121, be connected with the movable conductor 124 of vacuum circuit-breaker 32.Movable conductor 124 is connected with movable contact (omitting among the figure), relatively disposes fixed contact (omitting among the figure) with movable contact.This fixed contact is connected with fixed conductor 126, in movable contact is contained in insulating cylinder 128.In this insulating cylinder 128, keep vacuum state.Fixed conductor 126 is connected with fixing feeder line 129, and fixedly feeder line 129 is fixed on the insulating support 110.Upper conductor 130 is connected with fixing feeder line 129, and lower conductor 132 is connected with movable feeder line 122, is connected with power cables such as distribution electric wire on each conductor 130,132.
Therefore, when to control circuit board 18 input close command, owing to make coil (solenoid) 48 energisings of electromagnet 14 from the effect of the signal of control circuit board 18, around coil 48, in the path that connects movable core 58 → secured core 60 → mounting panel 76 → cover plate 72 → mounting panel 74 → movable core 58, form magnetic field, thereby end-acted downward attraction to bottom one side of movable core 58, make movable core 58 move to secured core 60 1 sides, and with movable core 58 stickings on secured core 60.At this moment, because the direction in the magnetic field that the direction in the magnetic field that is formed by permanent magnet 68 also produces with the excitation that is accompanied by coil 48 is identical, thereby make movable core 58 move to secured core 60 1 sides with the state of attraction enhancing.
When being carried out closed action (attracting action) by electromagnet 14, axle 62 elastic force that overcome cut-out spring 92 move down, and the actuating force that the electromagnetic force that produces with electromagnet 14 produces passes to lever 96.This actuating force passes to connecting plate 104 through axle 98, bar 100, thereby makes movable conductor 124 move rising, and movable contact contacts with fixed contact, carries out the closed action of vacuum circuit-breaker 32.In the closed action of vacuum circuit-breaker 32, though pressure-bearing spring 120 fixed contact be not compressed before movable contact contacts, fixed contact contacts then with movable contact one and is compressed, and then, is compressed to closed action always and finishes.On the other hand, cut-out spring 92 is in compressed state always in the closed action of vacuum circuit-breaker 32.
Subsequently, to control circuit board 18 input open command (clearance order), when outputing to coil 48 by control circuit board 18 with the corresponding signal of open command, the opposite electric current of direction when in coil 48, flowing through, the opposite magnetic field of direction when forming around the coil 48 with closed action with closure.At this moment, cancel out each other by the magnetic flux of coil 48 generations and the magnetic flux of permanent magnet 68 generations, because the attraction of the direction of principal axis end face (lower surface) of movable core 58 is more weak than the elastic force of cut-out spring 92 and 120 generations of pressure-bearing spring, movable core 58 moves up with regard to leaving secured core 60.When axle 62 moves to the top along with moving of movable core 58, be moved upward interlock with lever 96, connecting plate 104 moves to the below, the movable contact of vacuum circuit-breaker 32 leaves fixed contact, fixed contact and contacting of movable contact are disengaged, and realize the disconnection action (action of opening circuit) of vacuum circuit-breaker 32.At this moment, when removing the closure state that electromagnet 14 kept, begin compressed pressure-bearing spring 120 elongations, when pressure-bearing spring bearer plate 112 contacts with backing plate 116, then the fixed contact of vacuum circuit-breaker 32 and contacting of movable contact are disengaged, and realize disconnection (release) action of the open circuit action and the electromagnet 14 of vacuum circuit-breaker 32 simultaneously.
In the process of the closed action of carrying out vacuum circuit-breaker 32 or disconnection action (action of opening circuit), the closure of vacuum circuit-breaker 32 or off-state are detected by auxiliary contact 34, display panel 36, counter 38.
Specifically as shown in Figure 2, connecting bar 134 on the top of the axle 62 that is connected with movable core 58.Through hole (omitting among the figure) is formed at the top at this bar 134, inserts bearing pin 136 in this through hole.Bearing pin 136 inserts in the slotted hole of lever 138,140, and bar 134 is connected with lever 140 with lever 138 by bearing pin 136.Lever 138 is connected with axle adjuvant grafting point 34 through axle 142.This auxiliary contact 34 has a contact and b contact, and it is consistent with moving up and down of axle 62 to make the switching that makes each contact.That is being configured to of auxiliary contact 34: axle 142 a contact when a direction rotation enters, and the b contact enters when opposite spin.At this moment, on lever 138, form slotted hole,, thereby consistently with moving up and down of axle 62 make axle 142 rotations, a contact and b contact are alternately entered thereby coincide with the spinning movement of axle 142 because bearing pin 136 inserts in these slotted holes.
Lever 140 is connected with fixed head 146 through bearing pin 144, and the bottom of fixed head 146 is fixed on the plate 56.Constituting of this lever 140: matching with moving up and down of axle 62 to be the center rotation with bearing pin 144.In addition, the front end of lever 140 and display panel 36 are made of one, and indicate the literal of " access " on the top of the front of display panel 36 side, and indicate the literal of " cut-out " in its underpart.When display panel 36 is in position shown in Figure 2, makes the literal that makes " cut-out " and can see by front one side of shell 10; And be in when moving to the top from position shown in Figure 2 when display panel 36, the literal of " access " can be seen by front one side of shell 10.That is, its structure is: match with moving up and down of axle 62, can be seen the literal of " access " or " cut-out " by front one side of shell 10.
In addition, dispose spring 148 on display panel 36, an end of spring 148 is connected with the axial end portion of lever 140, and its other end is connected with the counter lever 150 of counter 38.Spring 148 is along with the rotation of lever 140 is corresponding flexible, and to make counter lever 150 be center rotation (rotating in about 45 ° scope) with bearing pin 152, the 150 every rotations of counter lever are once just mechanically counted the switch motion number of times of vacuum circuit-breaker 32.
Below, the concrete action of state detection mechanism is described.At first, when carrying out vacuum when opening circuit 32 closed action, as shown in Figure 3, axle 62 moves to the below, and consistent with the mobile phase of axle 62, lever 138 is that the center rotates around clockwise direction with axle 142, because the rotation of lever 138, the b contact of auxiliary contact 34 disconnects, and a contact is connected then.At this moment, display panel 36 is because lever 140 is center direction rotation between inverse time with bearing pin 144, and the literal that as shown in Figure 4, then moves to " access " can be from the position that a positive side is seen.And then spring 148 is compressed, and counter lever 150 is that the center rotates about 45 ° with bearing pin 152.Thus, 38 pairs of vacuum circuit-breakers 32 of counter are finished a closed action and are counted.
Subsequently, when vacuum circuit breaker 32 begins to open circuit when action, axle 62 moves to the top from position shown in Figure 4.With this mobile rising of 62 interlock, lever 138 with axle 142 be the center around counter rotation, axle 142 rotations of auxiliary contact 34, a contact of auxiliary contact 34 disconnects, b contact connection then.And then with the mobile rising interlock of axle 62, lever 140 is that the center rotates around clockwise direction with bearing pin 144, and as shown in Figure 4, display panel 36 moves to the position that can see the literal of " cut-out " from the front.At this moment, along with the rotation of lever 140, spring 148 elongations, counter lever 150 is that the center rotates about 45 ° with bearing pin 152.In addition, the state of the best literal with " access " that can see display panel 36 from the front of the installation of spring 148 makes it be in some loose state.
Like this, when vacuum circuit-breaker 32 carries out closed action or disconnects action (action of opening circuit), can utilize auxiliary contact 34, display panel 36, counter 38 to detect the closure or the off-state of vacuum circuit-breaker 32.
On the other hand, be connected with 4 wheels 154, it can be moved on erecting bed 156 in the both sides of base 80.That is, the solenoid-operated switching device that comprises shell 10 that electromagnet 14 is housed and the insulating support 110 that vacuum circuit-breaker 32 is housed can take out by moving by the front of shell 10 of wheel 154 under the state that is fixed on the base 80.
But, in the present embodiment, vacuum circuit-breaker 32 is in off state in " cut-out " position of display panel, promoting with blocking lever 46 is condition, owing to vacuum circuit-breaker 32 can be taken out (pulling out), as shown in Figure 5, on erecting bed 156, fix in the clamp 162 of regulation run location 158 and off position 160, interlocking handle 164 is fixed on the upper side of blocking lever 46, and interlocking handle 164 inserts in behaviour's functional hole 168 of installing component 165 of the bottom surface that is installed in shell 10.In addition, lock pin 170 is fixed on the bottom sides of blocking lever 46, and the structure of blocking lever 46 is: when interlocking handle 164 was positioned at the below, inserted in the recess of regulation run location 158 and open position 160 bottom of blocking lever 46, because with contacting of clamp 162, vacuum circuit-breaker 32 can not be pulled out.
That is, vacuum circuit-breaker 32 is in off state in the position of " cut-out ", and blocking lever 46 is not when promoting, and vacuum circuit-breaker 32 can not take out (pulling out).
At this moment, be in on-state, be in not the state that can be disconnected by limit switch 42 as the signal of the close command of input control line road plate 18 as the limit switch 42 of interlocking switch.
Subsequently, when circuit breaker 32 is in off state, and operation interlocking handle 164 is when moving it the top, and as shown in Figure 6, the rising that is accompanied by interlocking handle 164 is moved, and blocking lever 46 moves to the top, then vacuum circuit-breaker 32 can be pulled out.
That is, solenoid-operated switching device is made and can be pulled it the front and move to open position 160.But at this moment, along with the mobile rising of blocking lever 46, limit switch 42 becomes disconnection, being forced to property of the input ground of the close command of control circuit board 18 is disconnected, thereby can not realize closed action to vacuum circuit-breaker 32.
On the other hand, when circuit breaker 32 in the position of " access ", when being in closure state, as shown in Figure 7, latch 106 contacts with lock pin 170, thereby makes it stop the rising of blocking lever 46 to be moved.That is,, vacuum circuit-breaker 32 can not be pulled out even operation interlocking handle 164 owing to latch 106 contacts with lock pin 170, thereby has stoped the rising of blocking lever 46 to be moved.
In addition, in the present embodiment, even in order under the state that front cover plate 166 is housed on the shell 10, also to pass through the open-circuit operation of manual operations realization to vacuum circuit-breaker 32, as shown in Figure 8, the position of being unloaded by front cover plate 166 on base 80 is formed for inserting the groove 174 that opens circuit with handle 172.Owing to use the opening operation of handle 172 to need service speed, thus make make its can be used for must opening operation all situations.That is, handle 172 is no matter have or not front cover plate 166 often in the insertion groove 174; When vacuum circuit breaker 32 is in closure state, in the front end insertion groove 174 of handle 172, the following side contacts of the front end of handle 172 and latch 106, with the bottom of groove 174 is that fulcrum is downwards during push handle 172, lever 96 with axle 98 be the center around counter rotation, thereby can realize opening operations to circuit breaker 32.At this moment, only apply a power that surpasses permanent magnet 68 supporting forces by handle 172, circuit breaker 32 is finished disconnected action in beginning.
On the other hand, when vacuum circuit-breaker 32 being carried out closed procedure, can when unloading front cover plate 166, realize, in the present embodiment, on base 80, be close to groove 174 and form the closed insertable groove 178 of front end with handle 176 in order only to make by manual operations.
Use closed closed procedure with handle 176 owing to not needing service speed, its structure is only made when assembling (or dismounting) operation in factory, when maintaining, overhauling (periodic inspection), only could be closed when circuit breaker 32 is taken out from distribution board, thereby groove 178 is exposed.When making vacuum circuit-breaker 32 finish closed action, after unloading front cover plate 166, again the front end of closure with handle 176 inserted in the groove 178 of base 80 by the manual operations of using handle 176.At this moment, in handle 176 insertion grooves 178, thereby the front end of handle 176 is contacted with the top of latch 106.
Thereafter, the front end of handle 176 inserts the outside of lever 96 and contact with the top of latch 106, in this state, when top one side with groove 178 be fulcrum make handle 176 move to above the time, lever 96 is that the center rotates around clockwise direction with axle 98, carries out the closed action of circuit breaker 32.
In the present embodiment, utilize manual closed action to make to unload the front cover plate in order to make, simultaneously, utilize manual disconnection action then to make to need not to unload front cover plate 166 and also can finish, on base 80, unload the zone of front cover plate 166 and form and to insert the groove 174 of opening operation, on base 80, adorning in the zone of front cover plate 166 and forming and to insert the groove 178 that closed procedure is used handle 176 towards the zone of latch 106 with handle 172 towards the zone of latch 106.
When carrying out the assembling of electromagnetic operating device, electromagnet 14, capacitor 16, control circuit board 18, secondary plug 22, cable 24-28 etc. are sent in the shell 10 on one side from the positive of shell 10 on the base 80, electromagnet 14 is fixed on the substantial middle position of shell 10, capacitor 16 and control circuit board 18 is separately fixed at the side of shell 10.At this moment, owing to auxiliary contact 34, display panel 36, counter 38 form one by plate 58 and electromagnet 14, thereby when fixed electromagnet 14, they be configured in the top of electromagnet 14.In addition, cable 24-28 since with secondary plug 22, plug connector 40, limit switch 42 fuses, thereby secondary plug 22 with state that cable 28 etc. is connected under be fixed on the top of shell 10.And when the each several part of cable 28 was positioned on the shell 10, the front end of cable 24 was connected with capacitor 16, the front end of cable 28 with plug connector 40 be connected with control circuit board 18.Then, the lead-out wire 30 of coil 48 and the part of cable 28 are crimped on together.After this, when axle 88 was connected with lever 96 by bearing pin 94, electromagnet 14 was connected with vacuum circuit-breaker 32 by linkage, thereby finished assembling operation.
As mentioned above, when the electromagnetic operating device that constitutes as a key factor of solenoid-operated switching device, electromagnet 14 is configured in the substantial middle position of shell 10, because with electromagnet 14 is the side that the center is separately fixed at capacitor 16 and control circuit board 18 on shell 10, thereby can easily carry out installation exercise and maintenance, upkeep operation, when operation can be improved, also can suppress the impact that produces by electromagnet 14 and transfer of vibration to capacitor 16 and control circuit board 18.
In addition,, itself and electromagnet 14 are made of one owing to auxiliary contact 34, display panel 36, counter 38 are connected with plate 56, thereby, but the simplification of implementation structure.
In addition, in the present embodiment, because electromagnet 14 is fully with the covering of iron parts, thereby magnetic field can not leak into the outside of electromagnet, can avoid the misoperation of control circuit.Have, by at electromagnet exterior arrangement magnetic, for example dispose shell 10, the characteristic variations problem of electromagnet 14 also is resolved.
In addition, in the present embodiment, in component parts, the slipper that slides mutually at a side parts and the opposing party's parts rotatably supports at a side parts on the opposing party's the bearing portions of parts or the rotating part and has used solid lubricant.
Concrete, at the slipper of the through hole 82 of plate 56, the through hole 84 of mounting panel 76 etc., at bearing pin 86,94,102,144, the rotating part or the bearing portions of axle 98 grades have used the Nonlubricated bearing of solid lubricant.Therefore, can successfully slide (moving up and down) at axle 62, lever 96,100,140 etc. can successfully be rotated motion and can successfully carry out the supporting of other parts etc., electromagnet 14 can be made airtight construction simultaneously.
In addition, owing in bearing pin 94 grades, use C type circle, compare during with the use split pin and can improve operation as the axle shelves.
Below, illustrate with the concrete structure of control circuit board 18 according to Figure 10 as the electromagnet control device of main composition key element.The structure of electromagnet control device has AC/DC converter 200, charging circuit 202, control logic portion 204, discharge circuit 206; Capacitor 16 is connected with discharge circuit 206 with electromagnet coil 48.
AC/DC converter 200 is accepted control power supply P, the N of direct current or interchange by the secondary plug, and direct original state is used during for direct current, is transformed to direct current and exports to charging circuit 202 and control logic portion 204 when exchanging.Charging circuit is carrying out slowly being charged to maximum voltage again after the high speed charging to capacitor 16, utilize the electric energy that is stored in the capacitor 16 to control the driving of solenoid 48.
That is, in discharge circuit 206, be provided as the FET (field-effect transistor) 208 of major control device, a pair of relay tip 210,212, diode D1, resistance R L.FET208 inserts from capacitor 16 and supplies with the power-on circuit of solenoid 48 with electric energy (electric current), makes it according to carry out switch control from the control signal of control logic portion 204.The relay tip 210,212 that also will constitute a pair of mechanical type transfer relay inserts by capacitor 16 to be supplied with in the power-on circuit of solenoids 48 with electric energy, and the c contact that relay tip 210,212 will be separately is as shared contact, and has a contact and b contact.The a contact of relay tip 210 is connected with an end of solenoid 48, and its b contact is connected with the other end of solenoid 48, and its c contact is connected with the positive pole of capacitor 16.
On the other hand, the b contact of relay tip 212 is connected with an end of solenoid 48, and its a contact is connected with the other end of solenoid 48, and the c contact is connected with FET208, simultaneously, is connected with the c contact of relay tip 210 by resistance R L, diode D1.
The relay tip 210,212 that constitutes transfer relay is when producing open command (clearance order), c contact and b contact interconnect, as supplying with the power-on circuit of solenoids 48 by capacitor 16, constitute the disconnecting apparatus that is formed for making the power-on circuit that movable core 58 and secured core 60 leave mutually with electric energy.Have again, relay tip 210,212 is when producing close command, contact is switched, the c contact is connected with a contact, as the power-on circuit of supplying with solenoid 48 by capacitor 16, be with as the power-on circuit of the disconnecting apparatus power-on circuit opposite to the energising direction of solenoid 48, constitute and be formed for power-on circuit that movable core 58 and secured core 60 are in contact with one another, make the closing device that formed power-on circuit disconnects when producing open command.And, after utilizing relay tip 210,212 to form the power-on circuit of the power-on circuit of closed usefulness or disconnection (opening circuit) usefulness, then can connect, the coil current of cutoff solenoid 48 by the switch motion of FET208.
That is, only require the energising performance for the relay tip 210,212 as transfer relay, FET208, can realize miniaturization and reduces cost by using big contact capacity as main switch.
In addition because the b contact of relay tip is as disconnecting apparatus, even thereby relay tip 210,212 also can disconnect action reliably just in case action is bad.
In addition, when using the coil current of FET208 cutoff solenoid 48, produce and the proportional overvoltage of current transformation rate, thereby the danger that damages solenoid 48 is arranged.
But, in the present embodiment, owing to be parallel with resistance R L and diode D as the energy consumption element with solenoid 48
1Even, produce overvoltage by solenoid when closed action and when disconnecting action, follow this superpotential energy to consume by resistance R L.
As shown in figure 11, the structure of charging circuit 202 has relay coil 214, relay tip 216, FET218, charging end detection circuit 220, a plurality of charging resistor Rb, Rs, diode D2 and a plurality of voltage stabilizing didoe ZD
1-ZDn, voltage stabilizing didoe ZD
1-ZDn is connected in series mutually and is connected the two ends of capacitor 16, and its formation makes the charging voltage of capacitor 16 maintain setting.
The resistance value difference of charging resistor Rb, Rs, and its relation is set at charging resistor Rb＞Rs.Each charging resistor Rb, Rs in the circuit that connects AC/DC converter 200 and capacitor 16 with diode D
2Polyphone is arranged together.And, export the signal of high level by charging end detection circuit 220 in the moment of charging beginning, relay 214 is connected, relay tip 216 switches to a contact on one side by the b contact, charging resistor Rs that resistance value is little inserts and is used for circuit that capacitor 16 is charged, can make capacitor 16 quick charges.
On the other hand, the charging voltage of capacitor 16 is being reached for the enough voltage Vt of drive magnet 14
1The time, charging end signal by charging end detection circuit 220 output low levels, relay 214 also disconnected when FET218 became disconnection, relay tip 216 resets to the b contact on one side by a contact, the charging resistor Rb that resistance value is big inserts in the charging circuit, and capacitor 16 slowly charges and reaches maximum charging voltage Vmax.
Like this, owing to reach charging voltage Vt at capacitor 16
1Just make charging resistor switch to high resistance on one side afterwards, after the charging voltage of capacitor 16 reaches Vmax, just reduce flowing into voltage stabilizing didoe ZD
1Electric current among the-ZDn, thus voltage stabilizing didoe ZD can be avoided
1The cause thermal damage of-ZDn.In addition, FET218, relay coil 214, relay tip 216 constitute the charging resistor switching mechanism.
In addition, as shown in figure 12, in charging end detection circuit 220,, set hysteresis higher limit Vt as the voltage range value of output charging end signal
1With hysteresis lower limit Vt
2, this charging end detection circuit 220 reaches hysteresis higher limit Vt in the charging voltage of capacitor 16
1Afterwards, the charging voltage up to capacitor 16 becomes hysteresis lower limit Vt
2Below before, as the charging end signal all make its output low level signal.Hysteresis lower limit Vt
2Be set at: the charging voltage at capacitor 16 has just reached hysteresis higher limit Vt
1More than after, even disconnect action, the residual voltage value of capacitor 16 also is not less than the lower limit as the voltage of output charging end signal condition.Have, the maximum Vmax of the charging voltage of capacitor 16 is set at more than 90% of minimum voltage of the control regulation of line voltage of defined in as the standard of the vacuum circuit-breaker 32 of the operand of solenoid 48 again.
That is to say that the operating state of circuit breaker has following three kinds, the hysteresis characteristic of charging resistor Rs and charging end detection circuit 220 must be set at the value that satisfies following state.
A kind " O "-1 minute-" CO "-3 minute-" CO "
B kind " CO "-15 second-" CO "
R kind " O "-0.35 second-" CO "-3 minute-" CO "
Wherein, " O " expression disconnects action (opening), and " C " represents closed action (pass).
Above-mentioned operating state is pressed the JEC-2300-1998 regulation.The concrete B kind that the time interval of each operating time is short, the R kind is set at benchmark.
For example, as shown in figure 13, for make from " CO " action after the capacitor residual voltage up to reaching Vt
1Time be below 15 seconds, the resistance value by decision charging resistor Rs is so that it satisfies the requirement of kind of operating state.In addition, as shown in figure 14, by decision hysteresis lower limit Vt
2Can reach R kind operating state, even make it in case be under the situation of " O " action, the output of charging end detection circuit 220 also can be kept low level.
In addition, by voltage stabilizing didoe ZD
1The maximum Vmax of the charging voltage of the capacitor 16 of-ZDn decision is necessary for below the minimum value (minimum voltage) of control regulation of line voltage of circuit breaker prescribed by standard.And, as shown in figure 15, because square being directly proportional of the rechargeable energy of capacitor 16 and charging voltage, thereby preferably Vmax is set at more than 90% of minimum value.
For example, be the 75%--125% of nominal control volatge by JEC-2300-1998 standard code control regulation of line voltage, when nominal control volatge is DC100V, Vmax can be set at more than 75V * 0.9=67.5V.
On the other hand, as shown in figure 16, close command is by as the limit switch 42 of interlocking device, be input in the control logic portion 204 with the relay tip 222 of relay 214 interlocks, and simultaneously, open command also is transfused to.And then, auxiliary contact 48a, 48b that contact opens and closes are connected with control logic portion 204 according to the state of vacuum circuit-breaker 32.Control logic portion 204 carries out logical operation according to the state of close command, open command, vacuum circuit-breaker 32, thereby output is used to control FET208, relay 214, as the control signal of the relay tip 210,212 of transfer relay etc.Relay tip 222 constitutes the close command controlling organization to be used for forbidding the input of close command before charging end detection circuit 220 produces the charging end signal.
Below, by Figure 17 the action of control logic portion 204 is described.When carrying out closed action, in the present embodiment, only satisfying interlocking device's connection, just accepting close command generation control signal when the capacitor charging finishes these two conditions according to the control signal that generates by control logic portion 204.
That is to say, when producing close command, become with interlocking device and to connect and relay tip 222 becomes the condition of being broken as, the relay tip 210,212 of transfer relay switches to a contact on one side, be formed for carrying out the circuit of closed action as power-on circuit to solenoid 48, then, thus FET208 becomes to connect and makes solenoid 48 excitations.Thus, movable core 58 and secured core 60 are in contact with one another, thereby have realized the closed action of relay 32.In this process, the auxiliary contact 48b of off state of expression circuit breaker 32 switches to disconnection by connection, thereafter, with after fixed contact contact, represents that the auxiliary contact 48a of the closure state of circuit breaker 32 becomes connection at the movable contact of circuit breaker 32.
After the closed action of circuit breaker 32 finishes, FET208 is disconnected with suitable timing.After FET208 disconnected, the energy that is stored in the solenoid 48 was consumed by resistance R L, treat that coil current is fully decayed after, finish closed action thereby the relay tip of transfer relay 210,212 disconnects.
On the other hand, when disconnecting action, special restriction is not set, as shown in figure 18, FET208 one connects after producing open command, because relay tip 210,212 lays respectively at the b contact on one side, coil 48 rightabout current excitation by the time with closed action, thus movable core 58 and secured core 60 are left and realize the disconnection action of circuit breaker 32.In the process that this disconnection action is carried out, the auxiliary contact 48a of the closure state of expression circuit breaker 32 is become by connection after the disconnection, and the auxiliary contact 48b of the off-state of expression circuit breaker 32 then becomes connection by disconnection.
According to present embodiment, owing to make with relay tip 210,212 and carry out the switching of power-on circuit, carry out connection, the disconnection of power-on circuit with FET208, thereby can constitute relay tip 210,212 with low capacity, constitute FET208 with big capacity, thereby can realize low cost, miniaturization.
In addition,, can realize the priority function that opens circuit, prevent pumping function by carrying out the sequence action of control logic portion 204 regulations.
Below, according to Figure 19 other embodiment is described.In the present embodiment, replace transfer relay relay tip 210,212 be the relay tip 224-230 that is provided with according to the transfer relay of the control signal work of sending by control logic portion 204, other structure is identical with the content of Figure 10.
The structure of relay tip 224 is, (during disconnection) under normal conditions, contact is in open mode and is connected with positive pole one end of capacitor 16, only at response circuit-closing contacts and become on-state just during close command, and is connected with an end of coil 48 by relay tip 228.The structure of relay tip 226 is, when disconnecting, contact is in closure state and is connected with positive pole one end of capacitor 16, only just opens contact when responding close command and becomes on-state.The structure of relay tip 228,230 makes it only become on-state when the response open command, relay tip 228 is connected with an end of coil 48 when disconnecting, when connecting, be connected with FET208, thereby be formed for disconnecting the power-on circuit of action with an end of coil 48.Relay tip is connected with resistance R L with the other end of coil 48 when disconnecting, and is connected with the other end of coil 48 and positive pole one end of capacitor 16 when connection, thereby is formed for disconnecting the power-on circuit of action.
That is to say, when producing close command, relay tip 228,230 are in off-state, relay tip 224,226 become connection, by relay tip 224,228,230 form the power-on circuit to solenoid 48, thereby constitute the close mechanism of the power-on circuit be formed for carrying out closed action, on the other hand, when producing open command, at relay tip 224,226 when becoming disconnection, relay tip 228,230 become connection, relay tip 226,228,230 accesses are used for disconnecting the power-on circuit of action, thereby are configured for making circuit breaker 32 to disconnect the release mechanism of action.
According to present embodiment, owing to carry out the switching of power-on circuit with relay tip 224-230, the connection of carrying out power-on circuit with FET208 disconnects, thereby can constitute relay tip 224-230 with low capacity, and constitute FET208, thereby can realize miniaturization and reduce cost with big capacity.
In the present embodiment, when producing close command, becoming connection with relay tip 224,226 is condition, thereby FET208 is connected, and to solenoid 48 excitations, makes circuit breaker 32 carry out closed action; When producing open command, become with relay tip 228-230 that to connect be condition, thereby make FET208 connect, to solenoid 48 excitations, make circuit breaker 32 disconnect action; Therefore, when relay tip 224-230 is in off-state, even the FET208 of voltage driven type during because of misoperation such as fluctuation noise etc., also can prevent vacuum circuit-breaker 32 misoperations.
The electromagnetic operating device of the foregoing description and the Electromagnetically-operating type vacuum circuit-breaker 32 of magnetic latched are being constituted under the situation of solenoid-operated switching device, can use microcomputer, logic IC (CPLD/FPGA) or mechanical relay etc. to constitute control logic portion 204.Close command, the desired electric current of open command are about tens of milliamperes, can constitute the switching device of little energy.
That is, as the relay that circuit breaker is sent open command, digital in recent years relay has become main flow, and can be suitable for can be with the circuit breaker of little current work during as operand.But, as the relay that circuit breaker is sent open command, the analog relay of old type tube also exists in a large number, when using solenoid-operated switching device of the present invention in the distribution board of analog relay is housed, produces unmatched problem at the current value this respect of open command.
For example, shown in Figure 20 (a) and (b), when the electric current that surpasses setting is flowed through the current transformer 203 of the electric current that detects circuit breaker 300 (circuit breaker that is equivalent to circuit breaker 32), the closed main contact 306 that is connected with plectane 304 and auxiliary contactor 308 is moved.At this moment, in the time of by 308 pairs of circuit breakers of auxiliary contactor, 300 output open command (trip command), display 310 actions.That is, in open command, not only make circuit breaker 300 actions, and require that the electric current that can make display 310 actions is arranged, its value is 2-5A.Therefore, when constituting solenoid-operated switching device, must make analogue relay circuit breaker 300 action normally together.
Therefore, in the present embodiment, when constituting solenoid-operated switching device, as shown in figure 21, a part that makes open command constitutes bypasses in the bypass circuit as negative electrode (ground connection) side (control power supply N) of the AC/DC converter 200 of power supply by resistance 312, in this bypass circuit, the disconnection action that inserts response vacuum circuit-breaker 32 disconnects the auxiliary contact 314 of bypass circuit and the jumper switch 313 of operation response make and break contact, and with resistance 312 real being contained on the control circuit board 18.
If adopt said structure, the input impedance of control logic portion 204 improves, its structure is when flowing through electric current about tens of milliampere in control logic portion 204, use as relay under the situation of analogue relay, connect the closed bypass circuit of jumper switch, can make by about several amperes open command of analogue relay output and pass through resistance 312, auxiliary contact 314 bypasses.
According to present embodiment,,, also can relay and circuit breaker be moved together with stable status even use digital relay and analogue relay as relay.
In the above-described embodiments, though real dress resistance 312 on control circuit board 18 is narrated, but resistance 312 may not be contained in the control circuit board 18 in fact, for example, as Figure 22 and shown in Figure 23, only when using analogue relay, also can adopt resistance 312 is contained in structure in the relaying box 316, this relaying box 316 is installed on the front cover plate (front panel) 166 and is used for relaying from the signal of secondary latch 22 and send it to control circuit board 18 etc.
If adopt said structure, as solenoid-operated switching device, when relay can be used as it is during for digital relay, when relay is analogue relay, then can adapt with it by relaying box 316 is installed, thereby, no matter can be general to digital relay and any relay of analogue relay.
In addition,, needn't be directly installed on the switching device, so long as between analogue relay and switching device, can be installed in Anywhere as relaying box 316.
In the above-described embodiments,, three-phase can be set, connect, thereby can use the circuit breaker of 14 pairs of each phases of an electromagnet to realize disconnecting closed action by the circuit breaker of axle 98 with each phase as circuit breaker 32 though be illustrated to single-phase circuit breaker 32 is set.
In addition, with a plurality of electromagnet 14 connections, with the coil 48 polyphone connections of each electromagnet 14, also can make circuit breaker 32 actions by axle 98.
Use Figure 24-Figure 29 that the concrete structure of electromagnet 14 is described in detail below.Figure 24 is the sectional arrangement drawing of electromagnet 14; Figure 25 is the drawing in side sectional elevation along the A-A line of Figure 24; Figure 26 is the drawing in side sectional elevation along the B-B line of Figure 24; Figure 27 is the drawing in side sectional elevation along the C-C line of Figure 24.
In Figure 24-Figure 27, the structure of electromagnet 14 has: make coil 48 cylindraceous, make columned movable core 58, make columned secured core 60, insert the axle 62 of the axle center part of movable core 58 and secured core 60, be fixed on the treadmill 64,64 of the oblong shape on the axle 62, make oblong shape and be fixed on permanent magnet 68 on the supporting bracket 74, make the iron cover plate 70,72 of oblong shape as return yoke, be fixed on the fixed lever 78 and support the supporting bracket 76 of iron cover plate 72.
At this, constitute to surround axle 62 and coil 48 around iron cover plate 70,72 o'clock, as the standard-sized steel pipe of press standard code such as JIS, use with section be the steel pipe of circle, by suppressing the steel pipe of pressing the part of steel pipe flat.
For example, shown in Figure 28 (a), it is flat to utilize compacting that the part of round steel pipe is pressed into along its diametric(al), then, and shown in Figure 28 (b), by at axial compacting steel pipe, so that the end face that in iron cover plate 70,72 magnetic field is passed through becomes level and smooth.
In addition, in flattening test, put down in writing, flatten steel pipe and make its minor axis H reach 2/3 o'clock of outer diameter of steel pipes D, should check whether produce damage or crackle by JIS G 3454 standard codes such as grade.That is, say steel pipe is crimped onto also no problem of its performance of this size even be nothing but.
Thereby, in the present embodiment,, also wish its minor axis size is set in more than 2/3 of the original external diameter of steel pipe even in cover plate 70,72 made of iron.
In addition, with regard to permanent magnet 68 and movable palm 62,64, owing to coincide with the shape of iron cover plate 70,72, and its profile made oblong shape, with permanent magnet 68, treadmill 62,64 is done circular comparing, also can increase relative area between the two, thus but enhance attraction.
In addition, because treadmill 62,64 usefulness sheet metals are made with process for stamping, permanent magnet 68 usefulness moulds are made with thermal sintering, the both is made oblong shape can not raise the cost.
On the other hand, with regard to movable core 58, secured core 60, owing to use by the standard-sized rod iron of JIS standard code and make, by movable core 58, secured core 60 are made cylindrical shape, compare also and can reduce cost when making square or rectangle.
When the electromagnet 14 of assembling said structure, as shown in figure 29, with bolt secured core 60 is fixed on the supporting bracket 76 in advance, and makes fixed lever 78 and axle 62 perforating branch faggings 76 in advance.In this state, at first iron cover plate 72 is positioned on the supporting bracket 72 from the top, thereafter, load onto coil 48 in order, the used adhesive securement in advance supporting bracket 74 of permanent magnet 68, movable core 58, treadmill 66, treadmill 64, and then use nut fixed axis 62 and movable core 58, treadmill 64,66 respectively., iron cover plate 70 and dull and stereotyped 56 be loaded on supporting bracket 74 on, again nut 55 be fixed on the assembling of promptly having finished electromagnet 14 on the fixed lever 78 afterwards thereafter.
When the electromagnet 14 that assembles is configured in one side, front of vacuum circuit-breaker 32, make the minor axis configuration on one side of the system iron covering plate 70,72 that forms oblong shape consistent with the depth direction of shell 10 and vacuum circuit-breaker 32.
According to present embodiment, because the minor axis that makes the iron cover plate 70,72 of making oblong shape on one side as one man disposes electromagnet 14 with the depth direction of vacuum circuit-breaker 32, shell 10, can make the depth dimensions electromagnet 14 littler than width dimensions that the space is set is narrower and small, can realize reducing electromagnetic operating device the space is set the time, can reduce to be mounted with the switchgear (circuit breaker 32) of this electromagnetic operating device and have the size of the distribution board of this switchgear.
In addition, according to present embodiment, but because an iron cover plate 70,72 with press forming, but the treadmill 64,66 of drawing and the permanent magnet 68 of die forming are made Long Circle, can not raise the cost also can dwindle electromagnetic operating device.And then, especially run-track shaped by the iron cover plate 70,72 of electromagnet 14 is made oblong shape, can reduce wasted space, improve the efficient of occupied area.
As mentioned above, adopt electromagnetic operating device of the present invention, its arrangement can improve operation.Both reduced and made needed man-hour, can constitute its depth dimensions electromagnet littler again, can dwindle also simultaneously that the space being set than width dimensions.And then, adopting electromagnet control device of the present invention, can make according to open command and close command to be used to control control device miniaturization to the energising direction of electromagnet coil.And then, adopt solenoid-operated switching device of the present invention, can both be applicable to that digital relay also was applicable to analogue relay.
Claims (12)
1. electromagnet control device, it is characterized in that: supply with the power-on circuit of solenoid as the electric energy of the capacitor that will be stored, have the release mechanism that when open command takes place, is formed for making the power-on circuit that movable core and secured core leave mutually from the electric energy of power supply; As the power-on circuit opposite to the energising direction of above-mentioned solenoid, has the close mechanism that when close command takes place, is formed for making the power-on circuit that above-mentioned movable core and secured core be in contact with one another with the power-on circuit of above-mentioned release mechanism; The structure of above-mentioned release mechanism comprises the above-mentioned open command of response and inserts the transfer relay that is used for making the power-on circuit that above-mentioned movable core and secured core leave mutually; The structure of above-mentioned close mechanism comprises the above-mentioned close command of response and inserts the transfer relay that is used for making the power-on circuit that above-mentioned movable core and secured core be in contact with one another.
2. electromagnet control device according to claim 1 is characterized in that: above-mentioned each transfer relay has a contact and b contact, and the c contact is shared contact, and the b contact in above-mentioned each transfer relay inserts in the power-on circuit of release mechanism.
3. electromagnet control device according to claim 1 is characterized in that: have master control mechanism, this master control mechanism inserts in the power-on circuit of the power-on circuit of above-mentioned close mechanism or above-mentioned release mechanism; When above-mentioned close command takes place, be condition with the power-on circuit that forms above-mentioned close mechanism, the power-on circuit of closed above-mentioned close mechanism then disconnects the power-on circuit of above-mentioned close mechanism in addition; When above-mentioned open command took place, the power-on circuit of closed above-mentioned release mechanism then then disconnected the power-on circuit of above-mentioned release mechanism in addition.
4. electromagnet control device, it is characterized in that: supply with the power-on circuit of solenoid as the electric energy of the capacitor that will be stored, have the release mechanism that when open command takes place, is formed for making the disconnection usefulness power-on circuit that movable core and secured core leave mutually from the electric energy of power supply; As the power-on circuit opposite to the energising direction of above-mentioned solenoid, have and when close command takes place, be formed for making closure that above-mentioned movable core and secured core be in contact with one another close mechanism with power-on circuit with the power-on circuit of above-mentioned release mechanism; The structure of above-mentioned release mechanism comprises the above-mentioned open command of response, inserts above-mentioned disconnection and inserts the closure transfer relay of above-mentioned disconnection with power-on circuit with transfer relay with before above-mentioned close command takes place with a pair of disconnection in the power-on circuit; The structure of above-mentioned close mechanism comprises the above-mentioned close command of response, inserts above-mentioned closure and inserts above-mentioned closed with a pair of disconnection transfer relay in the power-on circuit with the closure in the power-on circuit with transfer relay with before above-mentioned open command takes place.
5. electromagnet control device according to claim 4, it is characterized in that: have master control mechanism, this master control mechanism inserts in the power-on circuit of the power-on circuit of above-mentioned close mechanism or above-mentioned release mechanism, when above-mentioned close command takes place, is condition to form above-mentioned closure with power-on circuit, closed above-mentioned closure power-on circuit disconnects above-mentioned closure power-on circuit in the time of in addition; When above-mentioned open command takes place, be the closed above-mentioned closure power-on circuit of condition to form above-mentioned disconnection power-on circuit, disconnect above-mentioned disconnection power-on circuit in the time of in addition.
6. according to claim 3 or 5 described electromagnet control devices, it is characterized in that: between above-mentioned transfer relay and above-mentioned master control mechanism, insert the two ends that are connected above-mentioned solenoid energy consumption element by above-mentioned transfer relay with the energy that consumes solenoid.
7. electromagnet control device according to claim 6 is characterized in that: above-mentioned energy consumption element is made of resistance that is connected in series and diode.
8. according to any described electromagnet control device among the claim 1-4, it is characterized in that also having: the two ends that are connected above-mentioned capacitor are used for making the charging voltage of above-mentioned capacitor to maintain the voltage stabilizing didoe of setting; The a plurality of charging resistors that be connected in series between above-mentioned power supply and the above-mentioned capacitor, its resistance value are different; Be reached for the charging end detection circuit of output charging end signal when driving the enough voltage of above-mentioned electromagnet in the charging voltage of above-mentioned capacitor; Before the above-mentioned charging end signal of output with above-mentioned a plurality of charging resistors in the little charging resistor of resistance value insert in the circuit that connects above-mentioned power supply and above-mentioned capacitor, and when above-mentioned charging end signal output with above-mentioned a plurality of charging resistors in charging resistor switching mechanism in the circuit of the big charging resistor access above-mentioned power supply of connection of resistance value and above-mentioned capacitor.
9. electromagnet control device according to claim 8 is characterized in that: also have the close command controlling organization, be used for forbidding before the charging end signal produces to above-mentioned close mechanism input close command.
10. electromagnet control device according to claim 8 is characterized in that: in above-mentioned charging end detection circuit, the voltage range as the above-mentioned charging end signal of output is provided with hysteresis higher limit and hysteresis lower limit; After the charging voltage of above-mentioned capacitor reaches above-mentioned hysteresis higher limit, reach below the above-mentioned hysteresis lower limit up to the charging voltage of above-mentioned capacitor, above-mentioned charging end detection circuit is all exported above-mentioned charging end signal.
11. electromagnet control device according to claim 10, it is characterized in that: the hysteresis lower limit of above-mentioned charging end detection circuit is after the charging voltage of above-mentioned capacitor has just reached more than the above-mentioned hysteresis higher limit, even disconnect action, the residual voltage of above-mentioned capacitor is set at the value of lower limit that is not less than as the voltage of the condition of the above-mentioned charging end signal of output.
12. according to any described electromagnet control device among the claim 1-4, it is characterized in that: the charging voltage maximum of above-mentioned capacitor is set at more than 90% of minimum voltage as the control regulation of line voltage of the prescribed by standard of the switching device of the operand of above-mentioned solenoid.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002316735 | 2002-10-30 | ||
| JP2002316610 | 2002-10-30 | ||
| JP2002316610A JP3763094B2 (en) | 2002-10-30 | 2002-10-30 | Electromagnetic operation device |
| JP2002316675 | 2002-10-30 | ||
| JP2003033822 | 2003-02-12 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101033292A Division CN1245726C (en) | 2002-10-30 | 2003-10-28 | Solenoid operator and solenoid-operated switching device and control device for electromagnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1728296A true CN1728296A (en) | 2006-02-01 |
| CN100541679C CN100541679C (en) | 2009-09-16 |
Family
ID=32460264
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100930919A Expired - Lifetime CN100358065C (en) | 2002-10-30 | 2003-10-28 | Solenoid operator and solenoid-operated switching device and control device for electromagnet |
| CNB2005100930891A Expired - Lifetime CN100378885C (en) | 2002-10-30 | 2003-10-28 | Solenoid operator and solenoid-operated switching device and control device for electromagnet |
| CNB2005100930904A Expired - Lifetime CN100541679C (en) | 2002-10-30 | 2003-10-28 | electromagnet control device |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100930919A Expired - Lifetime CN100358065C (en) | 2002-10-30 | 2003-10-28 | Solenoid operator and solenoid-operated switching device and control device for electromagnet |
| CNB2005100930891A Expired - Lifetime CN100378885C (en) | 2002-10-30 | 2003-10-28 | Solenoid operator and solenoid-operated switching device and control device for electromagnet |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3763094B2 (en) |
| CN (3) | CN100358065C (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3763095B2 (en) * | 2002-10-30 | 2006-04-05 | 株式会社日立製作所 | Electromagnet control device |
| JP2006093005A (en) * | 2004-09-27 | 2006-04-06 | Mitsubishi Electric Corp | Open/closed state indicating device for switch and switching device |
| JP4332746B2 (en) * | 2005-11-07 | 2009-09-16 | 株式会社日立製作所 | Electromagnetic operation device |
| JP4333774B2 (en) * | 2006-07-10 | 2009-09-16 | 株式会社日立製作所 | Switchgear for power distribution |
| KR100807545B1 (en) * | 2006-10-17 | 2008-02-28 | 엘에스산전 주식회사 | Counter apparatus for air circuit breaker |
| JP4722018B2 (en) * | 2006-11-14 | 2011-07-13 | 三菱電機株式会社 | Control circuit device for drawer type circuit breaker device |
| JP5002358B2 (en) * | 2007-07-12 | 2012-08-15 | 株式会社東芝 | Vacuum circuit breaker |
| JP5321268B2 (en) * | 2009-06-16 | 2013-10-23 | 三菱電機株式会社 | Breaker |
| EP2325858A1 (en) * | 2009-11-20 | 2011-05-25 | ABB Technology AG | Medium Voltage circuit breaker arrangement |
| JP5364118B2 (en) * | 2011-03-09 | 2013-12-11 | 株式会社日立製作所 | Drawer type circuit breaker and switchboard |
| JP5199498B2 (en) * | 2011-04-27 | 2013-05-15 | 株式会社日立製作所 | Grease for electrical contacts and sliding energization structure, power switchgear, vacuum circuit breaker, vacuum insulation switchgear, and vacuum insulation switchgear assembly method |
| WO2013005348A1 (en) * | 2011-07-07 | 2013-01-10 | 三菱電機株式会社 | Electromagnetic control device |
| CN102780243B (en) * | 2012-06-14 | 2014-12-10 | 范承 | Electromechanical device for battery charging and discharging balancing and braking energy recovery |
| JP5872388B2 (en) * | 2012-06-18 | 2016-03-01 | 株式会社日立製作所 | Operating device or vacuum switch |
| JP5922507B2 (en) * | 2012-06-18 | 2016-05-24 | 株式会社日立製作所 | Electromagnetic switchgear |
| JP5883728B2 (en) | 2012-06-18 | 2016-03-15 | 株式会社日立製作所 | Assembling method of operating device, vacuum switchgear or operating device. |
| CN109244879B (en) * | 2018-09-30 | 2020-08-14 | 南通市泰力普电气有限公司 | Power box convenient to cut off power supply fast |
| EP3915127B1 (en) * | 2019-01-21 | 2022-12-14 | Eaton Intelligent Power Limited | Direct current circuit breaker device |
| JP7382916B2 (en) | 2020-10-14 | 2023-11-17 | 株式会社日立産機システム | vacuum circuit breaker |
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| US4172242A (en) * | 1978-05-03 | 1979-10-23 | Warner Electric Brake & Clutch Company | Electromagnet for use with a brake or the like |
| JPS55128218A (en) * | 1979-03-27 | 1980-10-03 | Tokyo Shibaura Electric Co | Circuit breaker |
| JPS5680610U (en) * | 1979-11-21 | 1981-06-30 | ||
| JPS5848316A (en) * | 1981-09-17 | 1983-03-22 | 株式会社東芝 | Circuit breaker |
| JPS59161309U (en) * | 1983-04-14 | 1984-10-29 | 株式会社明電舎 | closed switchboard |
| JPH0621530B2 (en) * | 1988-12-29 | 1994-03-23 | いすゞ自動車株式会社 | Valve drive |
| JP2592326Y2 (en) * | 1992-04-15 | 1999-03-17 | 日新電機株式会社 | Switchgear operation mechanism |
| JPH07320610A (en) * | 1994-05-27 | 1995-12-08 | Toshiba Corp | Vacuum circuit breaker |
| JP2002140966A (en) * | 1997-03-25 | 2002-05-17 | Toshiba Corp | Switching device |
| JP3295754B2 (en) * | 1997-09-10 | 2002-06-24 | 九州電力株式会社 | Open / close operation mechanism of switch, switch provided with the same, and open / close operation method in switch |
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| JP4247314B2 (en) * | 2000-12-25 | 2009-04-02 | Ｓｍｃ株式会社 | Solenoid for solenoid valve |
| JP4066040B2 (en) * | 2001-01-18 | 2008-03-26 | 株式会社日立製作所 | Electromagnet and operation mechanism of switchgear using the same |
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| CN1234135C (en) * | 2001-01-18 | 2005-12-28 | 株式会社日立制作所 | Electromagnetic and operating mechanism of switch using said electromagnet |
| JP3735689B2 (en) * | 2002-10-30 | 2006-01-18 | 株式会社日立製作所 | Electromagnetic switchgear |
| JP3763095B2 (en) * | 2002-10-30 | 2006-04-05 | 株式会社日立製作所 | Electromagnet control device |
-
2002
- 2002-10-30 JP JP2002316610A patent/JP3763094B2/en not_active Expired - Lifetime
-
2003
- 2003-10-28 CN CNB2005100930919A patent/CN100358065C/en not_active Expired - Lifetime
- 2003-10-28 CN CNB2005100930891A patent/CN100378885C/en not_active Expired - Lifetime
- 2003-10-28 CN CNB2005100930904A patent/CN100541679C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP3763094B2 (en) | 2006-04-05 |
| CN1728308A (en) | 2006-02-01 |
| CN1728307A (en) | 2006-02-01 |
| CN100358065C (en) | 2007-12-26 |
| JP2004152625A (en) | 2004-05-27 |
| CN100541679C (en) | 2009-09-16 |
| CN100378885C (en) | 2008-04-02 |
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Effective date of registration: 20170309 Address after: Tokyo, Japan Patentee after: HITACHI INDUSTRIAL EQUIPMENT SYSTEMS Co.,Ltd. Address before: Tokyo, Japan Patentee before: Hitachi, Ltd. |
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Granted publication date: 20090916 |