CN101694823A - B type intelligent circuit breaker with automatic switching-in function - Google Patents
B type intelligent circuit breaker with automatic switching-in function Download PDFInfo
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- CN101694823A CN101694823A CN200910204777A CN200910204777A CN101694823A CN 101694823 A CN101694823 A CN 101694823A CN 200910204777 A CN200910204777 A CN 200910204777A CN 200910204777 A CN200910204777 A CN 200910204777A CN 101694823 A CN101694823 A CN 101694823A
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Abstract
The invention relates to a B type intelligent circuit breaker with automatic switching-in function, which comprises a circuit breaker body, wherein the circuit breaker body comprises an upper cover, a handle, a bottom box and a bearing plate, wherein the upper cover is provided with a notch, two ends of which correspond to the opening/closing positions of the circuit breaker; the handle extends out of the notch; the bottom box is provided with a circuit breaker actuating mechanism, an incoming line terminal and an outgoing line terminal, and the circuit breaker actuating mechanism is triggered by the handle; the bearing plate is arranged between the upper cover and the bottom box, and is provided with a pinion and rack mechanism and a pushing part, and the pushing part is connected with the handle; and the bottom box is internally provided with a motor which is controlled by an automatic switching-in control unit, and the pinion and rack mechanism converts the rotation of the motor into the reciprocating motion of the pushing part, so that the handle is shifted between the opening/closing states.
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, handle 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 1, it is a circuit breaker of the prior art, 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 handle 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 by described handle; Described circuit breaker actuating mechanism also comprises the linkage unit that is connected with handle, the hinged acting arm that is provided with in one gangbar lower end of described linkage unit, linkage unit rotates under the effect at handle, thereby driving described acting arm rotates, 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 may 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, provide a kind of Type B intelligent breaker, in order to overcome above-mentioned defective with automatic switching-in function.
For achieving the above object, the technical solution used in the present invention is, a kind of Type B intelligent breaker with automatic switching-in function is provided, it comprises: a breaker body, described breaker body comprises: a loam cake, 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 handle 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 actuating mechanism triggers by described handle;
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 pinion and rack and a clicking section, and described clicking section is connected with described handle;
Be provided with a motor in the described under casing, it is under the control of an automatic switching-in control unit, and described pinion and rack is converted into the reciprocating action of described clicking section with the rotation of described motor, switches between open/close state from making described handle.
Wherein, described loading plate offers and the corresponding opening of described short slot, is provided with the chute of opposing parallel in the both sides of described opening;
Described clicking section is a framework, and described driving lever passes in the middle of described framework, and described framework both sides are provided with the slide rail that can move along described chute.
Wherein, described pinion and rack comprises:
One tooth bar, it combines with described framework, can drive the framework reciprocating motion;
One first gear, it is arranged on the described loading plate, and is meshed with described tooth bar.
In another embodiment, also comprise one second gear, described second gear is located on the described loading plate, and is meshed with described first gear.
Preferable, described pinion and rack also comprises a rack-and-pinion segregant unit, with so that can separate between the described rack-and-pinion.
Preferable, described framework flank is provided with at least one guide and limit groove; Described rack-and-pinion segregant unit comprises:
At least one guide and limit piece that is arranged at described tooth bar flank, it is corresponding with described guide and limit groove;
One traction component, it is opened on the described tooth bar, makes described tooth bar can prolong described guide and limit groove by described traction component and moves up and down.
Wherein, described traction component comprises:
One is arranged at the towing pad on the described tooth bar;
One draw bar, it passes described towing pad, and described draw bar upper end is provided with traction handle;
One elastic component, it is set on the described draw bar, in order to realize resetting of traction handle.
Wherein, cover on described and be provided with a breach, described traction handle sees through described breach, and after described traction handle was pulled up, its lower end was against and covers on described.
Preferable, also comprise: one speed reducer, it is arranged on the output shaft of described motor.
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 situations, 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 produces a dropout control signal when being short-circuited;
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 as 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 at 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 described short circuit detecing element under the abnormal conditions that are short-circuited.
At the too high abnormal conditions of temperature, also comprise: a temperature detection subelement, it detects the phase line temperature, when described 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 at 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 described 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.
Beneficial effect of the present invention compared with the prior art is, can realize the automatic closing of circuit breaker, can take place as short circuit or temperature make the circuit breaker disconnection when crossing high unusual electricity consumption situation, and under the situation that does not have unusually to get rid of, 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 Type B intelligent breaker of automatic switching-in function for the present invention;
The Type B intelligent 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 Type B intelligent breaker automatic closing machine assembly embodiment one of automatic switching-in function for the present invention;
The Type B intelligent 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 Type B intelligent 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;
Fig. 5 A has the control section circuit automatic closing control sub unit schematic diagram one of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 B has the control section circuit automatic closing control sub unit schematic diagram two of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 C has the control section circuit automatic closing control sub unit schematic diagram three of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 D has the control section circuit automatic closing control sub unit schematic diagram four of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 E has the control section circuit automatic closing control sub unit schematic diagram five of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 F has the control section circuit automatic closing control sub unit schematic diagram six of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 G has the control section circuit automatic closing control sub unit schematic diagram seven of the Type B intelligent breaker of automatic switching-in function for the present invention;
Fig. 5 H has the Type B intelligent breaker of automatic switching-in function for the present invention automatic closing control sub unit realizes reciprocating motion control circuit schematic diagram to motor.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
See also shown in Figure 2, it has the front view of the Type B intelligent breaker of automatic switching-in function for the present invention, described Type B intelligent breaker with automatic switching-in function comprises a breaker body, described breaker body comprises a box body, box body is to be made 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: handle 114, and the linkage unit that is connected with handle 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 handle 114 rotates, thereby driving described acting arm rotates, moving contact on the described acting arm is contacted with fixed contact on the described static contact, and 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 Type B intelligent 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 Type B intelligent breaker of automatic switching-in function, it comprises: a breaker body, described breaker body comprises: a loam cake 11, described loam cake offer a short slot 111, the ON/OFF position that the corresponding circuit breaker in the two ends of described short slot 111 is in; Described handle 114 stretches out described short slot 111.
See also shown in Fig. 3 A and Fig. 3 B, it is respectively front view and three-dimensional exploded view after Type B intelligent breaker automatic closing machine assembly embodiment one that the present invention has an automatic switching-in function takes off loam cake; Described Type B intelligent 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 and described short slot 111 corresponding openings 101, and is provided with the chute 214 of opposing parallel in the both sides of described opening 101;
Described automatic closing machine assembly comprises: motor 215 and intermediate transmission mechanism, described intermediate transmission mechanism places on the described loading plate 10, described intermediate transmission mechanism comprises: a pinion and rack and a clicking section 43, and described clicking section 43 is connected with described handle 114; Be provided with a motor 215 in the described under casing 12, it is under the control of an automatic switching-in control unit, described pinion and rack is converted into the reciprocating action of described clicking section 43 with the rotation of described motor 215, switches between open/close state from making described handle 114.
Described clicking section 43 is a framework, and described handle 114 passes in the middle of described framework 43, and described framework 43 both sides are provided with the slide rail that can move along described chute 214.
Described pinion and rack comprises:
One tooth bar 41, it combines with described framework 43, can drive framework 43 reciprocating motions;
One first gear 42, it is arranged on the described loading plate 10, and is meshed with described tooth bar 41, and described motor 215 output shafts are connected with described first gear 42;
Described pinion and rack also comprises a rack-and-pinion segregant unit, and with so that can separate between described first gear 42 and the tooth bar 41, described framework 43 flanks are provided with at least one guide and limit groove, and described gathering sill is for longitudinally; Described rack-and-pinion segregant unit comprises:
At least one guide and limit piece that is arranged at described tooth bar 41 flanks (two of adopting of present embodiment, certain one, or a plurality of also can), it is corresponding with described guide and limit groove;
One traction component, it is arranged on the described tooth bar 41, makes described tooth bar 41 can prolong described guide and limit groove by described traction component and moves up and down; Described traction component comprises:
One is arranged at the towing pad on the described tooth bar;
One draw bar 441, it passes described towing pad, and described draw bar 441 upper ends are provided with traction handle;
One elastic component 442, it is set on the described draw bar 441, and in order to realize resetting of traction handle, described elastic component 442 is a spring.Described loam cake 11 is provided with a breach 1151, and described traction handle sees through described breach 1151, and after described traction handle was pulled up, its lower end was against on the described loam cake 11.When described draw bar 441 is raised, drive described tooth bar 41 and move along described gathering sill, be separated thereby make between the described tooth bar 41 and first gear 42, so just can be manual stir handle 114.
Preferable, also comprise: one speed reducer, it is arranged on the output shaft of described motor 215, then the output shaft of described decelerator and described first gear, 42 Joints.
Preferable, described loam cake 11 is provided with safety check switch 32, and it is corresponding with corresponding latch switch on the described automatic switching-in control unit, uses when maintenance, prevents at motor 215 effect breaker closings.
Preferable, described circuit control panel 3 is provided with some status indicator lamps 31, after described loam cake 11 is installed, with to reserve open-work on the loam cake 11 corresponding.
12 also are provided with a release 15 at the bottom of the described case, the motion end of described release 15 is connected with a gangbar of described linkage unit by connecting rod, on described release 15 obtains from described circuit control panel 3 during the control signal of correspondent control circuits; Produce the action of threading off, the motion end of promptly described release 15 promotes described gangbar action, thereby described moving contact is separated with described fixed contact.Described release 15 is an electromagnet, and described motion end is its armature end.
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 lean mutually with an interlock piece of described linkage unit, 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, touching described axial gangbar rotates, thereby force an interlock piece of described linkage unit to rotate, and then described moving contact is separated with fixed contact, 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, and stretches out from the hole 1111 of described loam cake, and described crook leans on described axial gangbar, thereby it can not be resetted, promptly form 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 by 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 Type B intelligent breaker automatic closing machine assembly embodiment two that the present invention has an automatic switching-in function takes off loam cake; Itself and embodiment one get difference and are, have adopted the secondary gear kind of drive here, also comprise one second gear 45, and described second gear 45 is located on the described loading plate 10, and is meshed with described first gear 42.Wherein be arranged in the described motor 215 and described second gear, 45 Joints of under casing 12.
See also shown in Fig. 5 A, it has the automatic switching-in control unit schematic diagram one of the Type B intelligent breaker of automatic switching-in function for the present invention, present embodiment is example with the three-phase, described control circuit comprises: a power supply is gathered subelement, it obtains current signal from described phase line, described power supply collection subelement relates 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: a voltage-stabiliser tube DW1 and capacitor C 1, C2 in parallel 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 by 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 (here with tongue tube Sa when unusual being short-circuited, Sb, Sc is an example), 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, (both quantity is consistent with the phase line number), described tongue tube Sa, Sb, the end of Sc is connected with the in-phase end of described comparator IC1-1～IC1-3; The other end of described 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 by a component piezoresistance R3, R4 in the present embodiment, wherein, the end of described 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; Tongue tube Sa, the Sb of described each short-circuit detecting circuit, Sc are connected with the control end of described controllable silicon SCR by 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 described first triode Q2 is connected with the output that described power supply is gathered subelement, the grounded emitter of the described first triode Q2, one pull-up resistor R5 obtains the output signal of described comparator IC1-1～IC1-3, and there is the base stage of the described first triode Q2 to be connected, and described base stage links to each other with ground by 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: one second triode Q1, the base stage of the described second triode Q1 is connected with the collector electrode of the described first diode Q2, the grounded emitter of the described second triode Q1; 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. 5 B, it has the automatic closing control sub unit schematic diagram two of the Type B intelligent breaker of automatic switching-in function for the present invention, this schematic diagram must be distinguished with schematic diagram one and be, increased the external control subelement, its purpose can satisfy the needs as the prepaid fee power management system, described external control subelement comprises: be provided with a unidirectional current element, as 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, its base stage receives the external control signal, be connected with a capacitor C 5 between its emitter and collector, the wherein grounded emitter of the negative electrode of capacitor C 5 and described the 3rd triode Q4, the collector electrode of described the 3rd triode Q4 is connected with the control end of described controllable silicon SCR by 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 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. 5 C, it has the automatic closing control sub unit schematic diagram three of the Type B intelligent breaker of automatic switching-in function for the present invention, the difference of present embodiment and above-mentioned schematic diagram one mainly is, it has increased a spacing subelement accordingly, and do not adopt limit switch, thereby 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 by 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. 5 D, it has the automatic closing control sub unit schematic diagram four of the Type B intelligent breaker of automatic switching-in function for the present invention, the difference of present embodiment and above-mentioned schematic diagram one mainly is, present embodiment is to detect at overcurrent, therefore do not using tongue tube Sa, Sb, Sc but adopt the current acquisition element, that adopt here is current transformer TAa, Tab, Tac, it is separately positioned on each phase line, and be 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 it produce the action of 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. 5 E, it has the automatic closing control sub unit schematic diagram five of the Type B intelligent breaker of automatic switching-in function for the present invention, the difference of present embodiment and above-mentioned schematic diagram one mainly is, 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 at phase line (being example to adopt temperature sensor ta, tb, tc here) at least, 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 described 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) at 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 described 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 by a component piezoresistance R2, R3 in the present embodiment, wherein, the end of described 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 by 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. 5 F, it has the automatic closing control sub unit schematic diagram six of the Type B intelligent 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 with the difference of above-mentioned schematic diagram two, here no longer be provided with short circuit detecting unit and self-locking and automatic combined floodgate control sub unit, but only adopt mechanical self-latching promptly to be presented as that from circuit the form of short circuit lock K4 reaches purpose of the present invention.
See also shown in Fig. 5 G, it has the automatic closing control sub unit schematic diagram seven of the Type B intelligent breaker of automatic switching-in function for the present invention, this schematic diagram has embodied in existing control technology realizes an intelligentized example by processor, wherein, by current transformer TAa, TAb, TAc is from power line A, B, obtain the current value on every phase line on the C, and by an analog to digital conversion circuit, be converted to digital signal corresponding, be transferred to described processor MCU, the program of presetting in the described processor MCU, can judge 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, after obtaining power supply signal by voltage transformer BT from power line, 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, has described processor MCU to judge and exports a control signal when temperature exceeds 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 provides the power supply supply for a release TQXQ, mouthful coil that takes off of described release connects ground by 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 by 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 the every data 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; An one clock circuit and a keyboard circuit, it is respectively in order to provide clock signal and input command to described processor MCU; It is a variety of that above-mentioned described these functional circuits say that from specific implementation corresponding circuit has, and all is well-known, and those skilled in the art can specifically select for use as required, are not just giving unnecessary details here; Output PX.1, the PX.2 of described processor MCU is in order to be connected with self-locking control sub unit among the top embodiment, 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 whether removed according to present electricity exception situation by described processor MCU, judging needs to allow the action of described automatic closing control sub unit.
See also shown in Fig. 5 H, its automatic closing control sub unit that has the Type B intelligent breaker of automatic switching-in function for the present invention realizes reciprocating motion control circuit schematic diagram to motor, in this schematic diagram, the triode Q5 that four groups of PNP are arranged, Q6, Q8, Q9 and protection diode D10, D11, D13, D14, its collector electrode is connected with the anode of protection diode, the negative electrode of its emitter and diode is connected, and the positive terminal of motor is connected with the triode Q6 of two groups of PNP, Q9 and protection diode D11, the D14 collector electrode, and two groups between emitter link together; The end of oppisite phase of described motor is connected with triode Q5, the Q8 of other two groups of PNP and protection diode D10, D13 collector electrode, 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 described 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.By 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 only is 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 can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (20)
1. Type B intelligent breaker with automatic switching-in function, it comprises: a breaker body, described breaker body comprises: a loam cake, 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 handle 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 actuating mechanism triggers by described handle;
It is characterized in that: 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 pinion and rack and a clicking section, and described clicking section is connected with described handle;
Be provided with a motor in the described under casing, it is under the control of an automatic switching-in control unit, and described pinion and rack is converted into the reciprocating action of described clicking section with the rotation of described motor, switches between open/close state from making described handle.
2. the Type B intelligent breaker with automatic switching-in function according to claim 1 is characterized in that, described loading plate offers and the corresponding opening of described short slot, is provided with the chute of opposing parallel in the both sides of described opening;
Described clicking section is a framework, and described handle passes in the middle of described framework, and described framework both sides are provided with the slide rail that can move along described chute.
3. the Type B intelligent breaker with automatic switching-in function according to claim 2 is characterized in that described pinion and rack comprises:
One tooth bar, it combines with described framework, can drive the framework reciprocating motion;
One first gear, it is arranged on the described loading plate, and is meshed with described tooth bar.
4. the Type B intelligent breaker with automatic switching-in function according to claim 3 is characterized in that, also comprises one second gear, and described second gear is located on the described loading plate, and is meshed with described first gear.
5. according to claim 3 or 4 described Type B intelligent breakers, it is characterized in that described pinion and rack also comprises a rack-and-pinion segregant unit, with so that can separate between the described rack-and-pinion with automatic switching-in function.
6. the Type B intelligent breaker with automatic switching-in function according to claim 5 is characterized in that,
Described framework flank is provided with at least one guide and limit groove; Described rack-and-pinion segregant unit comprises:
At least one guide and limit piece that is arranged at described tooth bar flank, it is corresponding with described guide and limit groove;
One traction component, it is opened on the described tooth bar, makes described tooth bar can prolong described guide and limit groove by described traction component and moves up and down.
7. the Type B intelligent breaker with automatic switching-in function according to claim 6 is characterized in that described traction component comprises:
One is arranged at the towing pad on the described tooth bar;
One draw bar, it passes described towing pad, and described draw bar upper end is provided with traction handle;
One elastic component, it is set on the described draw bar, in order to realize resetting of traction handle.
8. the Type B intelligent breaker with automatic switching-in function according to claim 6, it is characterized in that cover on described and be provided with a breach, described traction handle sees through described breach, after described traction handle was pulled up, its lower end was against and covers on described.
9. according to claim 3 or 4 described Type B intelligent breakers, it is characterized in that also comprise: one speed reducer, it is arranged on the output shaft of described motor with automatic switching-in function.
10. according to the described Type B intelligent breaker of the arbitrary claim of claim 1-9, it is characterized in that described automatic switching-in control unit comprises with automatic switching-in function:
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 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.
11. the Type B intelligent breaker with automatic switching-in function according to claim 10 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 produces a dropout control signal when being short-circuited;
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.
12. the Type B intelligent breaker with automatic switching-in function according to claim 11 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.
13. according to claim 10,11 or 12 described Type B intelligent breakers with automatic switching-in function, 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 accept external control signal, thereby described release and motor are produced control action.
14. the Type B intelligent breaker with automatic switching-in function according to claim 13, it is characterized in that, described short circuit circuit for detecting comprises: a short circuit detecing element that is provided with at 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 described short circuit detecing element under the abnormal conditions that are short-circuited.
15. the Type B intelligent breaker with automatic switching-in function according to claim 14, it is characterized in that, also comprise: a temperature detection subelement, it detects the phase line temperature, when described temperature reaches a threshold value, produce a self-locking control signal and/or dropout control signal.
16. the Type B intelligent breaker with automatic switching-in function according to claim 14, it is characterized in that, described temperature detection subelement comprises: a detector unit that is provided with at 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 described detector unit under the occurrence temperature abnormal conditions.
17. the Type B intelligent breaker with automatic switching-in function according to claim 10 is characterized in that, also comprises: a spacing subelement, behind described breaker closing, send control signal and give described Electric Machine Control subelement, make the motor stall.
18. the Type B intelligent breaker with automatic switching-in function according to claim 17, it is characterized in that, described spacing subelement comprises: a photoelectrical coupler, it is behind breaker closing, its output produces a state variation, and it is passed to described Electric Machine Control subelement, make the motor stall.
19. the Type B intelligent breaker with automatic switching-in function according to claim 10, it is characterized in that, also comprise: a processor, it is gathered subelement by 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 default in the described processor or/and whether voltage exists unusually, and export control signal accordingly.
20. the Type B intelligent breaker with automatic switching-in function according to claim 19 is characterized in that, also comprises: a display circuit or with keyboard circuit or memory circuit or telecommunication circuit at least one of them, it is connected with described processor.
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| CN 200910204777 CN101694823B (en) | 2009-09-29 | 2009-09-29 | B type intelligent circuit breaker with automatic switching-in function |
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| CN 200910204777 CN101694823B (en) | 2009-09-29 | 2009-09-29 | B type intelligent circuit breaker with automatic switching-in function |
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| CN101694823A true CN101694823A (en) | 2010-04-14 |
| CN101694823B CN101694823B (en) | 2013-03-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176099A (en) * | 2013-03-01 | 2013-06-26 | 常熟理工学院 | Pre-closing main wire short-circuit detection sensing device for low-voltage circuit breakers |
| CN108695118A (en) * | 2017-04-07 | 2018-10-23 | 王静洋 | A kind of circuit breaker operation mechanism with solenoid actuated |
| CN110223890A (en) * | 2019-06-20 | 2019-09-10 | 山东优柏电子科技有限公司 | A kind of long-range switching off/on device and working method for breaker in a row |
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| CN114446733A (en) * | 2022-01-19 | 2022-05-06 | 中群电气有限公司 | Intelligent miniature circuit breaker of thing networking |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103646831B (en) * | 2013-12-16 | 2016-04-13 | 温州市中基电子有限公司 | A kind of single phase autoreclosing circuit breaker |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103176099A (en) * | 2013-03-01 | 2013-06-26 | 常熟理工学院 | Pre-closing main wire short-circuit detection sensing device for low-voltage circuit breakers |
| 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 |
| CN108695118A (en) * | 2017-04-07 | 2018-10-23 | 王静洋 | A kind of circuit breaker operation mechanism with solenoid actuated |
| CN110223890A (en) * | 2019-06-20 | 2019-09-10 | 山东优柏电子科技有限公司 | A kind of long-range switching off/on device and working method for breaker in a row |
| CN110223890B (en) * | 2019-06-20 | 2024-02-13 | 山东大学 | Remote switching-on/off device for row of circuit breakers and working method |
| CN113854185A (en) * | 2021-11-03 | 2021-12-31 | 灵汪(东莞)科技有限公司 | Pet haulage rope connecting device |
| CN113854185B (en) * | 2021-11-03 | 2023-04-07 | 灵汪(东莞)科技有限公司 | Pet leash connecting device |
| CN114446733A (en) * | 2022-01-19 | 2022-05-06 | 中群电气有限公司 | Intelligent miniature circuit breaker of thing networking |
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| CN101694823B (en) | 2013-03-27 |
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