CN101707165B - Built-in A type intelligent circuit breaker with automatic closing function - Google Patents
Built-in A type intelligent circuit breaker with automatic closing function Download PDFInfo
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- CN101707165B CN101707165B CN200910179260A CN200910179260A CN101707165B CN 101707165 B CN101707165 B CN 101707165B CN 200910179260 A CN200910179260 A CN 200910179260A CN 200910179260 A CN200910179260 A CN 200910179260A CN 101707165 B CN101707165 B CN 101707165B
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Abstract
The invention relates to a built-in A type intelligent circuit breaker with automatic closing function. The circuit breaker comprises a circuit breaker body and a bearing plate, wherein the circuit breaker body comprises a box body which is provided with a circuit breaker actuating mechanism, an incoming line terminal and an outgoing line terminal, the circuit breaker actuating mechanism is triggered by a shifter lever in the box body; the bearing plate is arranged between a upper cover and a bottom chamber and is provided with a crank part and a stirring part, the stirring part is connected with the shifter lever; the inside of the bottom chamber is provides with an electric motor, and the rotation of the electric motor is converted to the reciprocating action of the stirring part by the crank part under the control of an automatic closing control unit so as to realize the on/off state switch of the shifter lever.
Description
Technical field
What the present invention relates to is a kind of circuit breaker, particularly be the circuit breaker that a kind of motor that can realize automatic switching-in function places under casing, poke rod not to expose.
Background technology
Switch switchgear for power department is the assurance Electrical Safety, carry out circuit switches imperative equipment, and along with the release of country to the intelligent grid plan, it is an important direction that breaker apparatus need stride forward to the intelligence words.
See also shown in Figure 1ly, it is a circuit breaker of the prior art, and we are referred to as breaker body with it in the present invention; Described circuit breaker can be three-phase also can be single-phase, can be common miniature circuit breaker, also be can be big switch; It all comprises: a box body; Common box body is made up of loam cake and under casing, and described loam cake offers a short slot, the ON/OFF position that the corresponding circuit breaker in the two ends of described short slot is in; One poke rod stretches out described short slot; One under casing, described under casing is provided with circuit breaker actuating mechanism, and end of incoming cables and leading-out terminal, and described circuit breaker on-off action mechanism triggers through described poke rod; Described circuit breaker actuating mechanism also comprises the linkage unit that is connected with poke rod; The hinged acting arm that is provided with in one gangbar lower end of described linkage unit; Linkage unit rotates under the effect at poke rod, rotates thereby drive described acting arm, and the moving contact on the described acting arm is contacted with fixed contact on the described static contact; Described static contact is connected with leading-out terminal on the described under casing, thereby realizes electric current is spread out of.
But still have following defective for existing circuit breaker:
1, in payment system, the user hands in after the electricity charge circuit breaker retroactively can not automatic closing, needs electricity consumer oneself to handle, thereby makes troubles to the user;
2, when occurrence temperature was crossed high unusual electricity consumption situation, the existing circuit breaker opening speed was slower;
3, under the situation that the multiplexing electric abnormality situation does not have to get rid of, the user can close a floodgate, thereby possibly bring potential safety hazard.
In view of above-mentioned defective, creator of the present invention is through research and practice have obtained this creation finally for a long time.
Summary of the invention
The objective of the invention is to, a kind of built-in A type intelligent circuit breaker with automatic switching-in function is provided, in order to overcome above-mentioned defective.
For realizing above-mentioned purpose; The technical scheme that the present invention adopts is that a kind of built-in A type intelligent circuit breaker with automatic switching-in function is provided, and it comprises: a breaker body; Described breaker body comprises: a box body; Be provided with circuit breaker actuating mechanism in the described box body, and end of incoming cables and leading-out terminal, described circuit breaker on-off action mechanism realizes triggering through the poke rod that is positioned at described box body;
Also comprise: a loading plate, described loading plate are arranged between described loam cake and the under casing, and described loading plate is provided with a crank portion and a clicking section, and described clicking section is connected with described poke rod;
Be provided with a motor in the under casing of described box body, it is under the control of an automatic switching-in control unit, and described crank portion is converted into the reciprocating action of described clicking section with the rotation of described motor, switches between open/close state from making described poke rod.
Can have at least dual mode to implement a kind of for described crank portion is that a ratchet and pawl arrangement and a connecting rod are formed; Another kind is that a ratchet and pawl arrangement and a push rod are formed.
Wherein, described loading plate offers an opening;
Described clicking section also has two kinds of execution modes at least; One of them described clicking section is a shift fork, and the center is located on the described loading plate, and described shift fork one end is provided with one group of mouth; Described poke rod places described group of mouth, and the other end of described shift fork is provided with one and promotes mouth.
For the second way, described loading plate offers an opening, is provided with the chute of opposing parallel in the both sides of said opening;
Described clicking section is a framework, and described poke rod passes in the middle of described framework, and described framework both sides are provided with the slide rail that can move along said chute, and described framework is provided with connecting hole.
For described ratchet and pawl arrangement dual mode has been arranged at least also, first kind comprises:
Overcoat, described outer tackling internal tooth, described internal tooth is a ratchet;
Fuse, described fuse are arranged in the described internal tooth, and the fuse outer rim is provided with at least one ratchet, are provided with flexible member between described ratchet and the described fuse, and wherein said ratchet is corresponding with described ratchet;
Rolling bearing is arranged between described overcoat and the fuse.
Second kind of described ratchet and pawl arrangement comprises:
Overcoat, described overcoat has internal tooth, and described internal tooth is a ratchet, in described overcoat biasing described push rod is arranged;
Fuse, described fuse are arranged in the described internal tooth, and the fuse outer rim is provided with at least one ratchet, are provided with flexible member between described ratchet and the described fuse, and wherein said ratchet is corresponding with described ratchet;
Rolling bearing is arranged between described overcoat and the fuse.
Mode for adopting the secondary transmission also comprises a gear, and described gear is located on the described loading plate, and the outer rim of described overcoat is provided with tooth, and described gear is meshed with described overcoat.
A kind of in addition execution mode; Comprise that also a disk is fixedly installed on described outer putting; Described disk upper offset has a connecting hole; Outer put the connecting hole of disk through described connecting rod with described, thereby described motor being rotated drive described crank portion rotates, thereby moved in the described clicking section of described connecting rod pulling/promotion with the connecting hole of the framework on the clicking section links together.
Another execution mode; Described overcoat upper offset has a connecting hole; Through described connecting rod the described outer connecting hole that puts and the connecting hole of the framework on the clicking section are linked together; Drive described crank portion rotation thereby described motor is rotated, thereby make described connecting rod pulling/promotion described clicking section motion.
Another execution mode; Described gear upper offset has a connecting hole; Link together through the connecting hole of described connecting rod connecting hole on the described gear and the framework on the clicking section; Drive described crank portion rotation thereby described motor is rotated, thereby make described connecting rod pulling/promotion described clicking section motion.
Preferable, also comprise: one speed reducer, it is arranged between the output shaft and described fuse of described motor.
Another execution mode, an adapting rod, one of which end are fixedly arranged on described overcoat middle part, are provided with a connecting hole at its other end, and described connecting rod is arranged between the connecting hole of connecting hole and described framework of described adapting rod.
Described automatic switching-in control unit comprises:
One power supply is gathered subelement, and it obtains electric power signal from described phase line, and carries out rectifying and wave-filtering and handle;
One motor action control sub unit is obtained described electric power signal, and when receiving the combined floodgate order, makes described motor action, realizes that finally the described actuating mechanism that opens circuit produces feed motion.
For there are protection in short circuit or other unusual electricity consumption situation, described automatic switching-in control unit also comprises:
One short circuit circuit for detecting, whether it has short circuit to take place in order to detect, and when being short-circuited, produces a dropout control signal;
One dropout subelement in order to when receiving described dropout control signal, makes the described actuating mechanism that opens circuit produce the action of opening circuit.
In order to prevent circuit breaker automatic closing under the situation that does not have unusually to get rid of, described automatic switching-in control unit also comprises:
One self-locking control sub unit; It is connected with described motor action control sub unit; Receive described short circuit detecting subelement output one and characterize the self-locking control signal of short-circuit state, thereby make described motor action control sub unit make described motor not produce action.
In order to realize Long-distance Control so that like the use of functions such as pre-payment; Also comprise: an external control unit; It is connected with described motor action control sub unit with described dropout subelement respectively, and accepts external control signal, thereby described release and motor are produced control action.
Wherein, Described short circuit circuit for detecting comprises: a short circuit detecing element that is provided with to a phase line at least; It is connected with a judgment component; Described judgment component produces described self-locking control signal and described dropout control signal according to the state of said short circuit detecing element under the abnormal conditions that are short-circuited.
To the too high abnormal conditions of temperature, also comprise: a temperature detection subelement, it detects the phase line temperature, when said temperature reaches a threshold value, produces a self-locking control signal and/or dropout control signal.
Wherein, Described temperature detection subelement comprises: a detector unit that is provided with to a phase line at least; It is connected with a judgment component; Described judgment component produces described self-locking control signal and/or dropout control signal according to the state of said detector unit under the occurrence temperature abnormal conditions.
In order to prevent that motor movement from producing infringement after exceeding certain position, also comprise: a spacing subelement, behind described breaker closing, send control signal and give described motor action control sub unit, make the motor stall.
One of embodiment of described spacing subelement is that described spacing subelement comprises: a photoelectrical coupler, and it is behind breaker closing, and its output produces a state variation, and it is passed to described motor action control sub unit, makes the motor stall.
Be with prior art beneficial effect more of the present invention; Can realize the automatic closing of circuit breaker; Can take place as short circuit or temperature break off circuit breaker when crossing high unusual electricity consumption situation, and not have unusually under the situation of eliminating, can automatic closing; Being applicable to the Long-distance Control of circuit breaker, is the basic product of intelligent grid development.
Description of drawings
Fig. 1 is the exploded view of existing circuit breaker;
Fig. 2 has the front view of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment one that Fig. 3 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
Fig. 3 B has the three-dimensional exploded view of the built-in A type intelligent circuit breaker automatic closing machine assembly embodiment one of automatic switching-in function for the present invention;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment two that Fig. 4 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment two that Fig. 4 B has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment three that Fig. 5 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment three that Fig. 5 B has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment four that Fig. 6 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment four that Fig. 6 B has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment five that Fig. 7 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment five that Fig. 7 B has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment six that Fig. 8 A has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
The built-in A type intelligent circuit breaker automatic closing machine assembly embodiment six that Fig. 8 B has an automatic switching-in function for the present invention takes off the front view behind the loam cake;
Fig. 9 A has the automatic closing control sub unit sketch map one of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 B has the automatic closing control sub unit sketch map two of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 C has the automatic closing control sub unit sketch map three of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 D has the automatic closing control sub unit sketch map four of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 E has the automatic closing control sub unit sketch map five of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 F has the automatic closing control sub unit sketch map six of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 G has the automatic closing control sub unit sketch map seven of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention;
Fig. 9 H has the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention automatic closing control sub unit realizes reciprocating motion control circuit sketch map to motor.
Embodiment
Below in conjunction with accompanying drawing, do more detailed explanation with other technical characterictic and advantage to the present invention is above-mentioned.
See also shown in Figure 2; It has the front view of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention; Described built-in A type intelligent circuit breaker with automatic switching-in function comprises a breaker body, and described breaker body comprises a box body, and box body is to be made up of a loam cake 11, a loading plate 10 and a under casing 12; Described under casing 12 is provided with inlet wire port 115 and outlet port 113, inserts and picks out in order to realize described phase line and zero line; All be provided with vertical division board between each inlet wire (phase line, zero line) and separate, and be connected with the inlet wire sheet metal inner.
Described circuit breaker actuating mechanism is to comprise: poke rod 114; And the linkage unit that is connected with poke rod 114; The hinged acting arm that is provided with in one gangbar lower end of described linkage unit; When linkage unit under the effect of poke rod 114 rotates, rotate thereby drive described acting arm, the moving contact on the described acting arm is contacted with fixed contact on the described static contact; Described static contact is connected with leading-out terminal on the described under casing, thereby realizes electric current is spread out of (this is prior art);
Described built-in A type intelligent circuit breaker with automatic switching-in function is made up of mechanical part and control section, for automatic switching-in function, can think to be made up of automatic closing machine assembly and automatic switching-in control unit.The present invention has the built-in A type intelligent circuit breaker of automatic switching-in function; It comprises: a breaker body; Described breaker body comprises: a box body; Be provided with circuit breaker actuating mechanism in the described box body, and end of incoming cables and leading-out terminal, the poke rod 114 realization triggerings of described circuit breaker on-off action mechanism through being positioned at described box body.
See also shown in Fig. 3 A and Fig. 3 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment one that the present invention has an automatic switching-in function takes off loam cake; Described built-in A type intelligent circuit breaker with automatic switching-in function comprises: a loading plate 10; Described loading plate 10 is arranged between described loam cake 11 and the under casing 12; Described loading plate 10 offers opening 101, and is provided with the chute 214 of opposing parallel in the both sides of said opening 101; Described automatic closing machine assembly comprises: motor 215 and intermediate transmission mechanism, described intermediate transmission mechanism place on the described loading plate 10, and it comprises: a crank portion and a clicking section, and described clicking section is connected with described poke rod 114; Be provided with described motor 215 in the described under casing 12; It is under the control of described automatic switching-in control unit; Described crank portion is converted into the reciprocating action of described clicking section with the rotation of described motor 215, switches between open/close state from making described poke rod.
Crank portion described in the present embodiment is that a ratchet and pawl arrangement and a connecting rod are formed.Wherein said ratchet and pawl arrangement comprises: overcoat, and described overcoat has internal tooth, and described internal tooth is a ratchet, on the card of described overcoat, has a connecting hole; Fuse, described fuse are arranged in the described internal tooth, and the fuse outer rim is provided with at least one ratchet, are provided with flexible member between described ratchet and the described fuse, and wherein said ratchet is corresponding with described ratchet; Rolling bearing is arranged between described overcoat and the fuse.
Described clicking section is a framework 211, and described poke rod 114 passes in the middle of described framework 211, and described framework 211 both sides are provided with the slide rail that can move along said chute 214, and described framework 211 is provided with connecting hole.Described connecting rod 212 places between the connecting hole of connecting hole and described framework 211 of described overcoat, and the output shaft of described motor 215 places in the axis hole of described fuse; Thereby when described motor 215 rotated, fuse drove overcoat and rotates, and moves along described chute 214 thereby make described connecting rod 212 pullings or promote described clicking section, and then described poke rod 114 is switched between open/close state.
Preferable, described loam cake 11 is provided with safety check switch 32, and it is corresponding with corresponding latch switch on the said automatic switching-in control unit, when maintenance, uses, and prevents at motor 215 effect breaker closings.
Preferable, described circuit control panel 3 is provided with some status indicator lamps 31, and after said loam cake 11 was installed, to reserve open-work corresponding with loam cake 11.
12 also are provided with a release 15 at the bottom of the described case; The motion end of described release is connected with a gangbar of described linkage unit through connecting rod; On described release obtains from described circuit control panel 3 during the control signal of correspondent control circuits; Produce the action of threading off, promptly the motion end of said release promotes described gangbar action, thereby described moving contact is separated with described fixed contact.Described release is an electromagnet; Described motion end is its armature end, and described release is provided with limit switch, when the armature end action of release; Trigger described limit switch, described limit switch is connected with described circuit control panel 3;
Be short-circuited or during abnormal conditions such as overcurrent; Preferable; Can also comprise a mechanical self-latching mechanism, comprising: a gag lever post 2171, described gag lever post 2,171 one ends are provided with a crook; It is hooked in the groove that is provided with on the axial gangbar; Described axial gangbar can be swung, and leans mutually with an interlock piece of described linkage unit, and the other end of described gag lever post 2171 can be stretched out (be at least align with above-mentioned hole 1111 and do not stretch out) by the hole 1111 that is provided with on the described loam cake 11; Described gag lever post 2171 middle parts are provided with a groove, and a fixture 2172 is from following and described loam cake 11 concrete mutuallies, and pass described groove, are provided with back-moving spring in the described groove; When unusual condition occurring, described release action touches described axial gangbar and rotates; Thereby force an interlock piece of described linkage unit to rotate, and then described moving contact is separated with fixed contact, at this moment described gag lever post 2171 crook; From described groove, skid off, owing to be provided with action of reset spring in the described groove, described gag lever post 2171 moves upward; Stretch out from the hole 1111 of said loam cake; Described crook leans on described axial gangbar, thereby it can not be resetted, and promptly forms self-locking.In this case; The indicative function that the gag lever post 2171 that stretches out also plays proves, present circuit breaker off state is by causing unusually, if want to close a floodgate will be artificial the gag lever post that will stretch out 2171 through bar 2173 by going back; Make described crook from new embedded groove, thereby realize release.
Certainly above-mentioned is the self-locking of machinery, if adopt the self-locking of electronics, has not then needed release artificially usually, convenient and timely.
See also shown in Fig. 4 A and Fig. 4 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment two that the present invention has an automatic switching-in function takes off loam cake; This enforcement gets difference with embodiment one and is; Outside described, put the connecting hole that biasing no longer is set; But having increased by an adapting rod 219, the one of which end is fixedly arranged on the described overcoat middle part, is provided with a connecting hole at its other end; Described connecting rod 212 is arranged between the connecting hole of connecting hole and described framework 211 of described adapting rod 219, and the output shaft of described motor 215 places in the axis hole of described fuse; Thereby when described motor rotates; Fuse drives overcoat and rotates; Move along described chute 214 thereby make described adapting rod 219 drive described connecting rod 212 pullings or promote described clicking section, and then described poke rod 114 is switched between open/close state.
See also shown in Fig. 5 A and Fig. 5 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment three that the present invention has an automatic switching-in function takes off loam cake; This enforcement gets difference with embodiment one and is; The connecting hole of biasing no longer is set on described overcoat 2131; But having increased by a disk 2132, it is fixedly arranged on the described overcoat 2131, puts a connecting hole in a lateral deviation of said disk 2132; Described connecting rod 212 is arranged between the connecting hole of connecting hole and described framework 211 of described disk 2132, and the output shaft of described motor 215 places in the axis hole of described fuse; Thereby when described motor 215 rotates; Fuse drives overcoat 2132 and rotates; Move along described chute 214 thereby make described disk 2132 drive described connecting rod 212 pullings or promote described clicking section, and then described poke rod 114 is switched between open/close state.
See also shown in Fig. 6 A and Fig. 6 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment four that the present invention has an automatic switching-in function takes off loam cake; This enforcement gets difference with embodiment three and is; Also comprise a gear 218, described gear 218 is located on the described loading plate 10, and is connected with described motor 215 output shafts; The outer rim of described overcoat 2131 is provided with tooth, and described gear 218 is meshed with described overcoat 2131.When described motor 215 rotates; Driven gear 218 rotates; Thereby driving overcoat 2131 rotates; And then make described disk 2132 drive described connecting rod 212 pullings or promote described clicking section to move along described chute 214, described poke rod 114 is switched between open/close state.
See also shown in Fig. 7 A and Fig. 7 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment five that the present invention has an automatic switching-in function takes off loam cake; This enforcement gets difference with embodiment three and is; Transposing has taken place in the position of described ratchet and pawl arrangement and the position of gear; On described gear 2131, be set with disk 2132, described disk 2132 biasings have connecting hole, fuse and described motor Joint (in fact also can have connecting hole just not need disk 2132 at gear 2131 upper offsets); When described motor 215 rotates; Rotate thereby drive fuse, fuse drives overcoat 210 and rotates, thereby driven gear 2131 rotates; And then make described disk 2132 drive described connecting rod 212 pullings or promote described clicking section to move along described chute 214, described poke rod 114 is switched between open/close state.
See also shown in Fig. 8 A and Fig. 8 B, it is respectively front view and three-dimensional exploded view after built-in A type intelligent circuit breaker automatic closing machine assembly embodiment six that the present invention has an automatic switching-in function takes off loam cake; Crank portion here and clicking section and above-mentioned five embodiment have had difference; Described clicking section is a shift fork 211; The center is located on the described loading plate 10; Described shift fork 211 1 ends are provided with one group of mouth, and described poke rod 114 places described group of mouth, and the other end of described shift fork 211 is provided with one and promotes mouth.Overcoat 212 biasings for ratchet and pawl arrangement have a push rod 2123; When described motor 215 rotates; The drive fuse rotates; Thereby driving overcoat 212 rotates; And then make described push rod 2123 promote described promotions mouthful, and bring into and make described shift fork 211 around described axle rotation, finally make at the poke rod 114 described in the said group of mouth and between open/close state, switch.
See also shown in Fig. 8 C, it is respectively the preferred version that built-in A type intelligent circuit breaker automatic closing machine assembly embodiment six that the present invention has an automatic switching-in function takes off the three-dimensional exploded view behind the loam cake; It compares with Fig. 8 A and Fig. 8 B, also comprises: an adjustment seat 2121, and it is fixedly arranged on described overcoat 2123 middle parts, is provided with short slots in the middle of the described adjustment seat 2121; One adjusts poke rod 61, and the convexity of its lower end is corresponding with described short slot, through rotating adjustment poke rod 61, drives described adjustment seat 2121 and is prolonging the rotation of ratchet non operating state with described overcoat 2123.Thereby can artificially manually circuit breaker poke rod 114 be stirred, described loam cake 11 is provided with a breach, and described adjustment poke rod 61 is stretched into by described breach; Here it is emphasized that the architectural characteristic owing to ratchet and pawl arrangement, above-mentioned several instances also can be realized such adjustment with reference to present embodiment six, thereby can realize artificially manually circuit breaker poke rod 114 being stirred, and have just repeated no more here.
See also shown in Fig. 9 A; It has the automatic switching-in control unit sketch map one of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention, present embodiment is example with the three-phase, and described control circuit comprises: a power supply is gathered subelement; It obtains current signal from described phase line; Described power supply is gathered subelement and is related generally to the rectifying and wave-filtering effect to the phase line current, adopts three diode D1～D3 to be connected with phase line A～C respectively here, and adopts capacitor C 3 to carry out filtering;
One voltage stabilizing circuit, it comprises: capacitor C 1, the C2 of a voltage-stabiliser tube DW1 and parallel connection with it, the minus earth of wherein said capacitor C 1, the output that its anodal and described power supply is gathered subelement is connected;
One dropout subelement in order to when receiving a dropout control signal, makes circuit breaker produce the action of opening circuit; It comprises an electromagnet, and the end of its solenoid TQXQ obtains a unidirectional voltage (electric current) from described power supply Acquisition Circuit, and its other end is provided with a capacitor C 4 through a controllable silicon SCR ground connection between described controllable silicon SCR control end and the ground;
One short circuit circuit for detecting; Whether it has short circuit to take place in order to detect; When being short-circuited, export a control signal; Described short circuit circuit for detecting comprises: three groups of short circuit detecing elements and judgment component; Described short circuit detecing element is in order to produce a variable quantity (being example with tongue tube Sa, Sb, Sc) when unusual here being short-circuited; Described decision element (adopting comparator IC1-1～IC1-3 here is example) obtains a variable quantity by described short circuit detecing element place and compares with a predefined benchmark, and (both quantity is consistent with the phase line number), the end of described tongue tube Sa, Sb, Sc is connected with the in-phase end of described comparator IC1-1～IC1-3; The other end of said tongue tube Sa, Sb, Sc, the output of gathering subelement with described power supply is connected, as the comparison signal of described comparator IC1-1～IC1-3; The end of oppisite phase of described comparator IC1-1～IC1-3 obtains a stable voltage signal, as reference voltage; Obtain through a component piezoresistance R3, R4 in the present embodiment, wherein, the end of said divider resistance R3 is connected with capacitor C 1 negative electrode in the described voltage stabilizing circuit, and the other end is connected with the output that described power supply is gathered subelement; Be provided with diode D7, D10, D13 between the output of each comparator IC1-1～IC1-3 and the positive terminal; The tongue tube Sa of described each short-circuit detecting circuit, Sb, Sc are connected with the control end of described controllable silicon SCR through a diode D5, D9, D12, in order to export the dropout control signal to described controllable silicon SCR;
One self-locking control sub unit, it receives the signal of sign short-circuit state of the output of described short circuit detecting subelement, thereby makes described motor not produce action; It comprises: one first triode Q2; The collector electrode of the said first triode Q2 is connected with the output that described power supply is gathered subelement; The grounded emitter of the said first triode Q2, a pull-up resistor R5 obtains the output signal of described comparator IC1-1～IC1-3, and has the base stage of the described first triode Q2 to be connected; And described base stage links to each other with ground through resistance R 6, is connected with a resistance R 7 between the emitter and collector of the described first triode Q2;
One motor automatic closing control sub unit, it comprises: the base stage of the said second triode Q1 of one second triode Q1 is connected the grounded emitter of the said second triode Q1 with the collector electrode of the described first diode Q2; Described motor M one end is connected with the output that described power supply is gathered subelement, and the other end is connected with the collector electrode of the described second triode Q1;
Preferable, for mechanical structure in the result match, the circuit of described motor automatic closing control sub unit is provided with limit switch K1, reaches stall behind the precalculated position in order to the control motor M, thereby guarantees the breaker closing position;
The circuit of preferable described motor automatic closing control sub unit is provided with an artificial inspection switch K3 (being also referred to as locking) who opens and closes, and promptly when this K switch 3 was in off-state, described motor M can not moved under any state;
Also comprise: a dropout subelement reset circuit, it comprises: a reset key REST, its first end is connected with the control end of described controllable silicon SCR, its second end ground connection;
The preferable output at described comparator IC1-1～IC1-3 is provided with a LED a, LEDb, LEDc, in order to play indicative function.
See also shown in Fig. 9 B; It has the automatic closing control sub unit sketch map two of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention, this sketch map must be distinguished with sketch map one and be, has increased the external control subelement; Its purpose can satisfy the needs like the prepaid fee power management system; Described external control subelement comprises: be provided with a unidirectional current element, and like diode D16, and control element; Described control element comprises that promptly the control to the dropout subelement also comprises the control to motor automatic closing control sub unit; Described automatic closing control sub unit comprises: one the 3rd triode Q4, and its base stage receives the external control signal, is connected with a capacitor C 5 between its emitter and collector; The wherein grounded emitter of the negative electrode of capacitor C 5 and said the 3rd triode Q4, the collector electrode of described the 3rd triode Q4 is connected with the control end of described controllable silicon SCR through a diode D15; Be under the situation of high potential at the external control signal promptly, described release does not produce the action of threading off; One the 4th triode Q3; The emitter and collector of described the 4th triode Q3 (positive-negative-positive) is arranged on the described motor M automatic closing control sub unit circuit; The base stage of described the 4th triode Q3 is connected with the collector electrode of described the 3rd triode Q4; Be under the situation of high potential at the external control signal promptly, described the 4th triode Q3 is conducting; At described external control signal is under the situation of electronegative potential, and described dropout subelement produces the action of threading off, and described the 4th triode Q3 is in cut-off state simultaneously, and promptly motor automatic closing control sub unit can not moved.
The preferable external control indicating circuit that also is provided with, it comprises: light-emitting diodes LED pipe, one of which end ground connection, the other end is connected with a resistance R 11, and when the external control signal was high voltage, it was in illuminating state, otherwise then extinguished.
See also shown in Fig. 9 C; It has the automatic closing control sub unit sketch map three of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention; The difference of present embodiment and above-mentioned sketch map one mainly is; It has increased a spacing subelement accordingly, and does not adopt limit switch, thereby has saved the space; Described spacing subelement comprises: a photoelectrical coupler IC; The input of wherein said photoelectrical coupler IC adopts diode D14 to be connected with described phase line with dropping resistor R7 here through a unidirectional current element; Another input end grounding; The output head grounding of described photoelectrical coupler IC, another output is connected with the base stage of the described second triode Q1; Promptly after described motor M realizes automatic closing; The output output electronegative potential of described photoelectrical coupler IC; Thereby the described second triode Q1 is ended because of base stage obtains electronegative potential, and then described motor M automatic closing control sub unit is opened circuit, final motor stall.
See also shown in Fig. 9 D; It has the automatic closing control sub unit sketch map four of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention, the difference of present embodiment and above-mentioned sketch map one is that mainly present embodiment is to detect to overcurrent; Therefore do not using tongue tube Sa, Sb, Sc but adopting the current acquisition element; That adopt here is current transformer TAa, Tab, Tac, and it is separately positioned on each phase line, and is converted into voltage signal; Be transferred to described comparator IC1-1～IC1-3; Described comparator IC1-1～IC1-3 not only is transferred to described self-locking and automatic combined floodgate control sub unit with the signal of output simultaneously, simultaneously it is transferred to the control end of the controllable silicon SCR of described dropout subelement, promptly when the generation overcurrent is unusual; Described comparator IC1-1～IC1-3 output high potential signal is given the control end of described controllable silicon SCR; Thereby make its action of produce threading off, the reference voltage of end of oppisite phase that need to prove described comparator IC1-1～IC1-3 is owing to adopted slide rheostat w, so the threshold value of overcurrent comparison is adjustable.
See also shown in Fig. 9 E; It has the automatic closing control sub unit sketch map five of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention; The difference of present embodiment and above-mentioned sketch map one is that mainly it has increased a temperature detection subelement accordingly, in order to reach in temperature under the situation of certain threshold value; Described circuit breaker is opened circuit, and motor is produced auto-lock function; Described temperature detection subelement comprises: a detector unit that is provided with to a phase line at least (being example to adopt temperature sensor ta, tb, tc here); It is connected with a judgment component (being example to adopt comparator IC1-1～IC1-3 here); Described judgment component is according to the state of said detector unit under the occurrence temperature abnormal conditions, produce a self-locking control signal and dropout control signal at least one of them.Specifically be provided with three groups of temperature sensor ta, tb, tc and comparator IC2-1～IC2-3 (both quantity is consistent with the phase line number) to this enforcement, the end of described temperature sensor ta, tb, tc is connected with the in-phase end of described comparator IC2-1～IC2-3; The other end of said temperature sensor ta, tb, tc, the output of gathering subelement with described power supply is connected, as the comparison signal of described comparator IC2-1～IC2-3; The end of oppisite phase of described comparator IC2-1～IC2-3 obtains a stable voltage signal, as reference voltage; Obtain through a component piezoresistance R2, R3 in the present embodiment; Wherein, The end of said divider resistance R2 is connected with capacitor C 1 negative electrode in the described voltage stabilizing circuit, the output that the other end and described power supply are gathered subelement be connected (shared with described short circuit self-locking subelement); Be provided with diode D22, D19, D16 between the output of each comparator IC2-1～IC2-3 and the positive terminal; Described temperature detection subelement is connected with the control end of described controllable silicon SCR through a diode D21, D17, D14, in order to export the dropout control signal to described controllable silicon SCR; The preferable output at described comparator IC2-1～IC2-3 also is provided with a LED Ta～LEDTb in order to play indicative function.
See also shown in Fig. 9 F; It has the automatic closing control sub unit sketch map six of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention; Present embodiment is to match with the self-locking of opening circuit of above-mentioned machinery; Therefore on the structure of circuit, mainly be, no longer be provided with short circuit detecting unit and self-locking and automatic combined floodgate control sub unit here, but only adopt mechanical self-latching promptly to be presented as that from circuit the form of short circuit lock K4 reaches the object of the invention with the difference of above-mentioned sketch map two.
See also shown in Fig. 9 G, it has the automatic closing control sub unit sketch map seven of the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention, and this sketch map has embodied in existing control technology realizes an intelligentized example through processor; Wherein, obtain the current value on every phase line from power line A, B, C through current transformer TAa, TAb, TAc, and through an analog to digital conversion circuit; Convert digital signal corresponding into; Be transferred to described processor MCU, the program of presetting in the described processor MCU can be judged the power information of obtaining; Judge abnormal problems such as overcurrent/short circuit, thus the output control signal corresponding; An analog power circuit, it is made up of divider resistance R1～R6, obtains magnitude of voltage from every phase line and gives described analog to digital conversion circuit; One digital power circuit, obtain power supply signal through voltage transformer BT from power line after, after the processing through voltage stabilizing chip D; Be connected with described processor MCU; For it provides power supply signal, between described digital power circuit and processor MCU, be provided with a K switch 3, in order to cut off supply of electric power to described processor MCU; Thereby in maintenance, avoid causing accident because of the unreasonable control of processor MCU; Can also comprise: one group of temperature sensor IC1～IC3, it detects the temperature value at each phase line node place, and is converted into a digital data transmission to described processor MCU, exports a control signal when having described processor MCU judge temperature to exceed a threshold value; One current rectifying and wave filtering circuit is made up of three diode D1～D3 and capacitor C 2 resistance R 8; It is that a release TQXQ provides the power supply supply; Mouthful coil that takes off of described release connects ground through a controllable silicon SCR, and the control end of described controllable silicon SCR is connected with an output of described processor MCU; The present invention is in order to increase new intelligent functions; Described processor MCU can also be connected with a telecommunication circuit; It can carry out the mutual of data through the mode and other the communication equipment of wire/wireless, thereby can receive the control signal (pre-payment combined floodgate/power-off signal) of outer end; One memory is in order to each association in the storage circuit breaker; One display circuit is in order to show the detected various state informations of circuit breaker, and the box body of circuit breaker is provided with corresponding display screen; One clock circuit and keyboard circuit, it is respectively in order to provide clock signal and input command to described processor MCU; Above-mentioned described these functional circuits have a variety of from concrete realization corresponding electrical circuits, all be well-known, and those skilled in the art can specifically select for use as required, are not just giving unnecessary details here; The output PX.1 of described processor MCU, PX.2 in order to top embodiment in the self-locking control sub unit be connected; And then the action of control motor automatic closing control sub unit; Also can direct and described motor automatic closing control sub unit be connected; Whether remove according to present electricity exception situation by described processor MCU, judge whether to let the action of described automatic closing control sub unit.
See also shown in Fig. 9 H; Its automatic closing control sub unit that has the built-in A type intelligent circuit breaker of automatic switching-in function for the present invention realizes reciprocating motion control circuit sketch map to motor; In this sketch map; Triode Q5, Q6, Q8, Q9 and protection diode D10, D11, D13, D14 that four groups of PNP are arranged, its collector electrode is connected with the anode of protection diode, and the negative electrode of its emitter and diode is connected; And the positive terminal of motor is connected with triode Q6, Q9 and protection diode D11, the D14 collector electrode of two groups of PNP, and two groups between emitter link together; The end of oppisite phase of described motor is connected with triode Q5, Q8 and protection diode D10, the D13 collector electrode of other two groups of PNP, and two groups between emitter link together; One first unilateral diode D9, its anode is connected with the positive terminal of described motor, and its negative electrode is connected with processor one control end PX.2; One second unilateral diode D12; Its anode is connected with the end of oppisite phase of described motor; Its negative electrode be connected with processor one control end PX.1 (seeing also shown in Fig. 9 G); The base stage of described PNP triode Q9 is connected with the emitter of a PNP triode Q7, and the base stage of described PNP triode Q7 is connected with said control end PX.1; The base stage of described PNP triode Q8 is connected with the emitter of a PNP triode Q4, and the base stage of described PNP triode Q4 is connected with described control end PX.2, and the collector electrode utmost point of described PNP triode Q4 is connected with described PNP triode Q6 base stage; Described PNP triode Q5 base stage is connected with described PNP triode Q7 collector electrode; Described PNP triode Q6 base stage is connected with described PNP triode Q4 collector electrode simultaneously.Through the output signal of processor control end PX.1 and PX.2, thus the rotating of control motor, thus realize the reciprocating motion of corresponding actions mechanism.
The above is merely preferred embodiment of the present invention, only is illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and in spirit that claim of the present invention limited and scope, can carry out many changes to it, revise, in addition equivalent, but all will fall in protection scope of the present invention.
Claims (25)
1. built-in A type intelligent circuit breaker with automatic switching-in function is characterized in that it comprises:
One box body is provided with circuit breaker actuating mechanism in the described box body, and end of incoming cables and leading-out terminal, and described circuit breaker on-off action mechanism realizes triggering through a poke rod that is positioned at described box body;
Also comprise: a loading plate, it is positioned at described box body, and described loading plate is provided with a crank portion and a clicking section, and described clicking section is connected with described poke rod;
Be provided with a motor in the under casing of described box body; It is under the control of an automatic switching-in control unit; Described crank portion is converted into the reciprocating action of described clicking section with the rotation of described motor, realizes the logical and disconnected of circuit breaker thereby make described poke rod trigger described circuit breaker actuating mechanism.
2. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 1 is characterized in that, described crank portion is that a ratchet and pawl arrangement and a connecting rod are formed.
3. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 1 is characterized in that, described crank portion is that a ratchet and pawl arrangement and a push rod are formed.
4. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 2 is characterized in that described loading plate offers an opening;
Described clicking section is a shift fork, and the center is located on the described loading plate, and described shift fork one end is provided with one group of mouth, and described poke rod places described group of mouth, and the other end of described shift fork is provided with one and promotes mouth.
5. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 3 is characterized in that described loading plate offers an opening, is provided with the chute of opposing parallel in the both sides of said opening;
Described clicking section is a framework, and described poke rod passes in the middle of described framework, and described framework both sides are provided with the slide rail that can move along said chute, and described framework is provided with connecting hole.
6. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 4 is characterized in that; Described ratchet and pawl arrangement comprises:
Overcoat, described outer tackling internal tooth, described internal tooth is a ratchet;
Fuse, described fuse are arranged in the described internal tooth, and the fuse outer rim is provided with at least one ratchet, are provided with flexible member between described ratchet and the described fuse, and wherein said ratchet is corresponding with described ratchet;
Rolling bearing is arranged between described overcoat and the fuse.
7. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 5 is characterized in that; Described ratchet and pawl arrangement comprises:
Overcoat, described overcoat has internal tooth, and described internal tooth is a ratchet, in described overcoat biasing described push rod is arranged;
Fuse, described fuse are arranged in the described internal tooth, and the fuse outer rim is provided with at least one ratchet, are provided with flexible member between described ratchet and the described fuse, and wherein said ratchet is corresponding with described ratchet;
Rolling bearing is arranged between described overcoat and the fuse.
8. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 6; It is characterized in that, also comprise a gear, described gear is located on the described loading plate; The outer rim of described overcoat is provided with tooth, and described gear is meshed with described overcoat.
9. according to claim 6 or 8 described built-in A type intelligent circuit breakers with automatic switching-in function; It is characterized in that; Comprise that also a disk is fixedly installed on described outer putting, described disk upper offset has a connecting hole, will describedly put the connecting hole of disk outward and the connecting hole of the framework on the clicking section links together through described connecting rod; Drive described crank portion rotation thereby described motor is rotated, thereby make described connecting rod pulling/promotion described clicking section motion.
10. according to claim 6 or 8 described built-in A type intelligent circuit breakers with automatic switching-in function; It is characterized in that; Described overcoat upper offset has a connecting hole; Through described connecting rod the described outer connecting hole that puts and the connecting hole of the framework on the clicking section are linked together, drive described crank portion rotation, thereby make described connecting rod pulling/promotion described clicking section motion thereby described motor is rotated.
11. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 8; It is characterized in that; Described gear upper offset has a connecting hole; Link together through the connecting hole of described connecting rod, drive described crank portion rotation, thereby make described connecting rod pulling/promotion described clicking section motion thereby described motor is rotated with connecting hole on the described gear and the framework on the clicking section.
12. according to claim 6 or 8 described built-in A type intelligent circuit breakers with automatic switching-in function, it is characterized in that, also comprise: one speed reducer, it is arranged between the output shaft and described fuse of described motor.
13. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 6; It is characterized in that; One adapting rod; The one of which end is fixedly arranged on described overcoat middle part, is provided with a connecting hole at its other end, and described connecting rod is arranged between the connecting hole of connecting hole and described framework of described adapting rod.
14., it is characterized in that described automatic switching-in control unit comprises according to claim 1-8,11, the described built-in A type intelligent circuit breaker of 13 arbitrary claims with automatic switching-in function:
One power supply is gathered subelement, and it obtains electric power signal from phase line, and carries out rectifying and wave-filtering and handle;
One Electric Machine Control subelement obtains described electric power signal, and when receiving the combined floodgate order, makes described motor action, realizes that finally the described actuating mechanism that opens circuit produces feed motion.
15. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 14 is characterized in that, described automatic switching-in control unit also comprises:
One short circuit circuit for detecting, whether it has short circuit to take place in order to detect, and when being short-circuited, produces a dropout control signal;
One dropout subelement in order to when receiving described dropout control signal, makes the described actuating mechanism that opens circuit produce the action of opening circuit.
16. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 15 is characterized in that, described automatic switching-in control unit also comprises:
One self-locking control sub unit, it is connected with described Electric Machine Control subelement, receives described short circuit detecting subelement output one and characterizes the self-locking control signal of short-circuit state, thereby make described Electric Machine Control subelement make described motor not produce action.
17. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 16; It is characterized in that; Also comprise: an external control unit; It is connected with described Electric Machine Control subelement with described dropout subelement respectively, and accepts external control signal, thereby described dropout subelement and motor are produced control action.
18. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 17; It is characterized in that; Described short circuit circuit for detecting comprises: a short circuit detecing element that is provided with to a phase line at least; It is connected with a judgment component, and described judgment component produces described self-locking control signal and described dropout control signal according to the state of said short circuit detecing element under the abnormal conditions that are short-circuited.
19. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 18; It is characterized in that, also comprise: a temperature detection subelement, it detects the phase line temperature; When said temperature reaches a threshold value, produce a self-locking control signal and/or dropout control signal.
20. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 18; It is characterized in that; Described temperature detection subelement comprises: a detector unit that is provided with to a phase line at least; It is connected with a judgment component, and described judgment component produces described self-locking control signal and/or dropout control signal according to the state of said detector unit under the occurrence temperature abnormal conditions.
21. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 14; It is characterized in that, also comprise: a spacing subelement, behind described breaker closing; Send control signal and give described Electric Machine Control subelement, make the motor stall.
22. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 21; It is characterized in that; Described spacing subelement comprises: a photoelectrical coupler, and it is behind breaker closing, and its output produces a state variation; And it is passed to described Electric Machine Control subelement, make the motor stall.
23. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 14; It is characterized in that; Also comprise: a processor; It is gathered subelement through an analog to digital conversion circuit and described power supply and is connected, in order to according to the electric current of programmed decision collection preset in the described processor or/and whether voltage exists unusually, and export control signal accordingly.
24. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 23 is characterized in that, also comprises: a display circuit or memory circuit or telecommunication circuit at least one of them, it is connected with described processor.
25. the built-in A type intelligent circuit breaker with automatic switching-in function according to claim 23 is characterized in that, also comprises: a keyboard circuit, it is connected with described processor, in order to order accordingly to described processor input.
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| CN200910179260A CN101707165B (en) | 2009-09-29 | 2009-09-29 | Built-in A type intelligent circuit breaker with automatic closing function |
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| CN200910179260A CN101707165B (en) | 2009-09-29 | 2009-09-29 | Built-in A type intelligent circuit breaker with automatic closing function |
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| CN101707165B true CN101707165B (en) | 2012-09-26 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5514318B2 (en) * | 2009-09-29 | 2014-06-04 | 湖北盛佳▲電▼器▲設備▼有限公司 | Intelligent circuit breaker with automatic switching-in function |
| JP5535323B2 (en) * | 2009-09-29 | 2014-07-02 | 湖北盛佳▲電▼器▲設備▼有限公司 | Built-in intelligent circuit breaker and micro circuit breaker with automatic switching-in function |
| CN101980350B (en) * | 2010-10-18 | 2014-06-11 | 湖北盛佳电器设备有限公司 | Miniature circuit breaker with position state detection function |
| CN103176099B (en) * | 2013-03-01 | 2015-05-13 | 常熟理工学院 | Pre-closing main wire short-circuit detection sensing device for low-voltage circuit breakers |
| CN105244237A (en) * | 2015-11-18 | 2016-01-13 | 国网冀北电力有限公司秦皇岛供电公司 | Electric leakage protector |
| CN109391033B (en) * | 2018-11-05 | 2020-07-03 | 福州博峰智能电器有限公司 | Intelligent power distribution management system |
| CN114836727B (en) * | 2022-04-20 | 2024-04-09 | 广东振华科技股份有限公司 | System and method for detecting film thickness of each layer of multilayer film system |
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| US5142257A (en) * | 1989-03-07 | 1992-08-25 | Gilbert Gamet | Device for the automatic reclosing of breakers and breakers equipped with such a device |
| EP1843363A1 (en) * | 2006-04-05 | 2007-10-10 | Schneider Electric Industries SAS | Electric switch with contact wear compensation |
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