CN102945775B - There is the built-in C type intelligent circuit breaker of automatic switching-in function - Google Patents
There is the built-in C type intelligent circuit breaker of automatic switching-in function Download PDFInfo
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- CN102945775B CN102945775B CN201210442926.7A CN201210442926A CN102945775B CN 102945775 B CN102945775 B CN 102945775B CN 201210442926 A CN201210442926 A CN 201210442926A CN 102945775 B CN102945775 B CN 102945775B
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Abstract
The present invention is a kind of built-in C type intelligent circuit breaker with automatic switching-in function, it comprises: a box body, circuit breaker actuating mechanism is provided with in described box body, and end of incoming cables and leading-out terminal, described circuit breaker actuating mechanism realizes triggering by the poke rod being positioned at described box body; Also comprise: a loading plate, it is positioned at described box body, described loading plate is provided with a parallel moving mechanism and a clicking section, and described clicking section and described poke rod lean; Under the control of an automatic switching-in control unit, reciprocating action is carried out in the clicking section described in described parallel moving mechanism promotes, thus makes the described circuit breaker actuating mechanism described in poke rod triggering realize the logical and disconnected of circuit breaker; Described clicking section is a shift fork, and described shift fork one end is provided with one group of mouth, and described poke rod is placed in described group mouth, and the both wings of described shift fork are respectively arranged with connecting hole, and middle part and the described loading plate of described shift fork are coupling.
Description
Technical field
What the present invention relates to is a kind of circuit breaker, particularly be the circuit breaker that a kind of poke rod that can realize automatic switching-in function does not expose.
Background technology
Switch switchgear for power department, be ensure Electrical Safety, carry out the requisite equipment of circuit switching, along with country is to the release of intelligent grid plan, it is an important direction that breaker apparatus needs to stride forward to intelligence words.
Refer to shown in Fig. 1, it is circuit breaker of the prior art, we are referred to as breaker body in the present invention, described circuit breaker can be three-phase also can be single-phase, can be common miniature circuit breaker, be also can be large switch, it all comprises: a box body, common box body is made up of upper cover and under casing, and described upper cover 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 actuating mechanism is triggered by described poke rod; Described circuit breaker actuating mechanism also comprises the linkage unit be connected with poke rod, one gangbar lower end of described linkage unit is hinged is provided with acting arm, when linkage unit under the effect at poke rod rotates, thus the acting arm described in driving is rotated, moving contact in described acting arm is contacted with the fixed contact on described static contact, described static contact is connected with the leading-out terminal on described under casing, thus realizes electric current to spread out of.
But following defect is still had for existing circuit breaker:
1, in payment system, user to hand in after the electricity charge circuit breaker retroactively can not automatic closing, needs electricity consumer oneself to process, thus makes troubles to user;
2, when occurrence temperature crosses high abnormal electricity consumption situation, existing circuit breaker opening speed is slower;
3, when multiplexing electric abnormality situation is not got rid of, user can close a floodgate, thus may bring potential safety hazard.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through long research and practice.
Summary of the invention
The object of the invention is to, a kind of built-in C type intelligent circuit breaker with automatic switching-in function is provided, in order to overcome above-mentioned defect.
For achieving the above object, the technical solution used in the present invention is, provide a kind of built-in C type intelligent circuit breaker with automatic switching-in function, it comprises:
One box body, is provided with circuit breaker actuating mechanism in described box body, and end of incoming cables and leading-out terminal, and described circuit breaker actuating mechanism realizes triggering by the poke rod being positioned at described box body;
Also comprise: a loading plate, it is positioned at described box body, described loading plate is provided with a parallel moving mechanism and a clicking section, and described clicking section and described poke rod lean;
Under the control of an automatic switching-in control unit, reciprocating action is carried out in the clicking section described in described parallel moving mechanism promotes, thus makes the described circuit breaker actuating mechanism described in poke rod triggering realize the on-off of circuit breaker;
Described clicking section is a shift fork, and described shift fork one end is provided with one group of mouth, and described poke rod is placed in described group mouth, and the both wings of described shift fork are respectively arranged with connecting hole, and middle part and the described loading plate of described shift fork are coupling.
The parallel moving mechanism corresponding with above-mentioned clicking section comprises: described parallel moving mechanism comprises: a pair electromagnet, it is installed on described loading plate respectively, the connecting hole described in electromagnet armature end and described in each is hinged, and the electromagnet described in two is in not identical operating state.
Described automatic switching-in control unit comprises:
One power acquisition collected works unit, it obtains electric power signal from phase line, and carries out rectifying and wave-filtering process;
One motor action controls subelement, the electric power signal described in acquisition, and when receiving combined floodgate order, makes described motor action, and the tripping action mechanism described in final realization produces feed motion.
In order to there is protection to short circuit or other abnormal electricity consumption situations, described automatic switching-in control unit also comprises:
One short circuit detection circuit, whether it has short circuit to occur in order to detect, and produces a dropout control signal when a short circuit occurs;
One dropout subelement, in order to when receiving described dropout control signal, makes described tripping action mechanism produce tripping action.
In order to prevent the circuit breaker automatic closing when extremely not getting rid of, described automatic switching-in control unit also comprises:
One from lock control subelement, itself and described motor action control subelement and are connected, short circuit detecting subelement described in reception exports the self-locking control signal that characterizes short-circuit state, thus the motor that described motor action is controlled described in subelement order does not produce action.
In order to realize Long-distance Control so that as the use of the functions such as pre-payment, also comprise: an external control unit, it controls subelement with described dropout subelement and described motor action respectively and is connected, and accepts external control signal, thus produces control action to described release and motor.
Wherein, described short circuit detection circuit comprises: at least for the short circuit detecing element that a phase line is arranged, it is connected with one first judgment component, the first described judgment component according to the state of short circuit detecing element described under the abnormal conditions that are short-circuited, the self-locking control signal described in generation and described dropout control signal.
For the abnormal conditions that temperature is too high, also comprise: a temperature detection subelement, it detects liquidus 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: at least for the detector unit that a phase line is arranged, it is connected with one second judgment component, the second described judgment component according to the state of detector unit described under occurrence temperature abnormal conditions, the self-locking control signal described in generation and/or dropout control signal.
In order to prevent motor movement from producing infringement after exceeding certain position, also comprising: a spacing subelement, after described breaker closing, sending control signal and controlling subelement to described motor action, making motor stalling.
One of embodiment of described spacing subelement is that described spacing subelement comprises: a photoelectrical coupler, and it is after breaker closing, and its output produces a state variation, and is passed to described motor action control subelement, makes motor stalling.
Beneficial effect of the present invention is compared with the prior art, the automatic closing of circuit breaker can be realized, can in generation as made circuit breaker disconnect when short circuit or temperature cross high abnormal electricity consumption situation, and when extremely not getting rid of, can not automatic closing, being applicable to the Long-distance Control of circuit breaker, is the basic product of intelligent grid development.
Accompanying drawing explanation
Fig. 1 is the exploded view of existing circuit breaker;
Fig. 2 is the front view that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 3 A is the front view after built-in C type intelligent circuit breaker automatic closing machine assembly embodiment one that the present invention has an automatic switching-in function takes off upper cover;
Fig. 3 B is the three-dimensional exploded view that the present invention has the built-in C type intelligent circuit breaker automatic closing machine assembly embodiment one of automatic switching-in function;
Fig. 4 A is the front view after built-in C type intelligent circuit breaker automatic closing machine assembly embodiment two that the present invention has an automatic switching-in function takes off upper cover;
Fig. 4 B is the front view after built-in C type intelligent circuit breaker automatic closing machine assembly embodiment two that the present invention has an automatic switching-in function takes off upper cover.
Fig. 5 A is the control section circuit automatic closing control subelement schematic diagram one that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 B is the control section circuit automatic closing control subelement schematic diagram two that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 C is the control section circuit automatic closing control subelement schematic diagram three that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 D is the control section circuit automatic closing control subelement schematic diagram four that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 E is the control section circuit automatic closing control subelement schematic diagram five that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 F is the control section circuit automatic closing control subelement schematic diagram six that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 G is the control section circuit automatic closing control subelement schematic diagram seven that the present invention has the built-in C type intelligent circuit breaker of automatic switching-in function;
Fig. 5 H be the present invention have the built-in C type intelligent circuit breaker of automatic switching-in function automatic closing control subelement reciprocating motion control circuit schematic diagram is realized to motor.
Embodiment
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Refer to shown in Fig. 2, it has the front view of the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention, the described built-in C type intelligent circuit breaker with automatic switching-in function comprises a breaker body, described breaker body comprises a box body, box body is made up of upper cover 11, loading plate 10 and a under casing 12, described under casing 12 is provided with inlet wire port 115 and outlet port 113, in order to realize described phase line and zero line access and to pick out; All be provided with longitudinal division board between each inlet wire (phase line, zero line) to separate, and be connected with inlet wire sheet metal in inside.
Described circuit breaker actuating mechanism comprises: poke rod 114, and the linkage unit to be connected with poke rod 114, one gangbar lower end of described linkage unit is hinged is provided with acting arm, when linkage unit under the effect at poke rod 114 rotates, thus the acting arm described in driving is rotated, moving contact in described acting arm is contacted with the fixed contact on described static contact, described static contact is connected with the leading-out terminal on described under casing, thus realizes being spread out of by electric current (this is prior art);
The described built-in C 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 C type intelligent circuit breaker of automatic switching-in function, it comprises: a breaker body, described breaker body comprises: box body, circuit breaker actuating mechanism is provided with in described box body, and end of incoming cables 115 and leading-out terminal 113, described circuit breaker actuating mechanism realizes triggering by the poke rod being positioned at described box body.
Refer to shown in Fig. 3 A and Fig. 3 B, it is respectively built-in C type intelligent circuit breaker automatic closing machine assembly embodiment one that the present invention has an automatic switching-in function and takes off the front view after upper cover and three-dimensional exploded view; The described built-in C type intelligent circuit breaker with automatic switching-in function comprises: a loading plate 10, described loading plate 10 is arranged between described upper cover 11 and under casing 12, described loading plate 10 offers the opening 101 corresponding with described short slot, described loading plate is provided with a parallel moving mechanism and a clicking section, described clicking section and described poke rod 114 lean;
Reciprocating action is carried out in clicking section described in described parallel moving mechanism promotes, switches between the on/off states from making described poke rod 114.
Wherein, described clicking section is a shift fork 51, and described shift fork 51 one end is provided with one group of mouth, and described poke rod 114 is placed in described group mouth, and the other end of described shift fork 51 is provided with a promotion mouth.Described loading plate 10 is provided with first guide groove 103 and second guide groove 104 paralleled with described short slot 11, the bottom surface of described shift fork 51 is provided with one first projection 511 and the second projection 512, and described projection is embedded in described guide groove.
Described parallel moving mechanism comprises:
One motor 215, its output shaft is provided with a threaded post, and described threaded post has an end, and described motor 215 bottom side is provided with a supporting part; Described loading plate 10 has a gap slot 102, described motor 215 is placed in described gap slot 102.
One guided bearing seat 52, it is placed on loading plate 10, and described guided bearing seat 52 has an inner thread mouth, in the inner thread mouth described in described threaded post screws in;
Wherein, the end of described threaded post is corresponding with two madial walls of the promotion mouth of described shift fork 51 respectively with described supporting part.
When described motor 215 rotates, then can relative to described guided bearing seat 52 translation, lean the promotion mouth of described shift fork 51, described shift fork 51 is moved along first, second described guide groove 103,104, thus the poke rod 114 described in realizing switches between the on/off states.
Preferably, 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 threaded post Joint.
Preferably, described upper cover 11 is provided with safety check switch 32, the blocking Switch Controller on itself and described automatic switching-in control unit should, using when overhauling, preventing from acting on breaker closing at motor 215.
Preferably, described circuit control panel 3 is provided with some status indicator lamps 31, after the described upper cover 11 of installation, with that upper cover 11 reserves open-work is corresponding.
Also be provided with a release at the bottom of described case, the motion end of described release is connected with a gangbar of described linkage unit by connecting rod, when described release obtains the control signal from control circuit corresponding on described circuit control panel; Produce trip action, i.e. the gangbar action described in motion end promotion of described release, thus described moving contact is separated with described fixed contact.Described release is an electromagnet, and described motion end is its armature end.
Be short-circuited or the abnormal conditions such as overcurrent time, preferably, a mechanical automatic locking mechanism can also be comprised, comprising: a gag lever post 2171, described gag lever post 2171 one end is provided with a crook, it is hooked in the groove that an axial gangbar is arranged, described axial gangbar can swing, and lean mutually with a linkage block of described linkage unit, the other end of described gag lever post 2171 can be stretched out by the hole 1111 that described upper cover 11 is arranged (being at least align with above-mentioned hole 1111 and do not stretch out); Be provided with a groove in the middle part of described gag lever post 2171, a fixture 2172 from below with described upper cover 11 concrete mutually, and through described groove, in described groove, be provided with back-moving spring; When occurring unusual condition, described release action, axial gangbar described in shake-up is rotated, thus force a linkage block of described linkage unit to be rotated, and then described moving contact is separated with fixed contact, now described gag lever post 2171 crook, skid off from described groove, owing to being provided with action of reset spring in described groove, described gag lever post 2171 moves upward, and stretches out from the hole 1111 of described upper cover, and described crook leans in described axial gangbar, thus make it not reset, namely form self-locking.In this case, the indicative function that the gag lever post 2171 stretched out also plays proves, current circuit breaker off state by extremely causing, if want to close a floodgate will be artificial by the gag lever post 2171 that stretches out by bar 2173 by going back, make described crook from new embedded groove, thus realize unlocking.
Certainly above-mentioned is mechanical self-locking, if adopt the self-locking of electronics, then usually does not need to have unlocked artificially, convenient and timely.
Refer to shown in Fig. 4 A and Fig. 4 B, it is respectively built-in C type intelligent circuit breaker automatic closing machine assembly embodiment two that the present invention has an automatic switching-in function and takes off the front view after upper cover and three-dimensional exploded view; Itself and embodiment one obtain difference and are, described clicking section is a shift fork 51, described shift fork 51 one end is provided with one group of mouth, described poke rod 114 is placed in described group mouth, the both wings of described shift fork are respectively arranged with connecting hole 511, and middle part and the described loading plate 10 of described shift fork 51 are coupling.
Described parallel moving mechanism comprises: a pair electromagnet 541, 542, it is installed on described loading plate 10 respectively, electromagnet 541 described in each, connecting hole 511 described in the armature end of 542 and is hinged, electromagnet 541 described in two, 542 are not in identical operating state, namely one of them is in armature and stretches out state, then another electromagnetism iron rule is in armature and does not stretch out state, will make like this to form linkage between described parallel moving mechanism and shift fork, namely by two electromagnet 541, the alternately change of 542 states, poke rod 114 described in realization switches between the on/off states.
Refer to shown in Fig. 5 A, it has the automatic switching-in control unit schematic diagram one of the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention, the present embodiment is for three-phase, described control circuit comprises: a power acquisition collected works unit, it obtains current signal from described phase line, described power acquisition collected works unit relates generally to the rectifying and wave-filtering effect to phase line current, adopts three diode D1 ~ D3 to be connected with phase line A ~ C respectively here, and adopts electric capacity C3 to carry out filtering;
One voltage stabilizing circuit, it comprises: a voltage-stabiliser tube DW1 and electric capacity C1, C2 in parallel with it, the minus earth of wherein said electric capacity C1, and its positive pole is connected with the output of described power acquisition collected works unit;
One dropout subelement, in order to when receiving a dropout control signal, makes circuit breaker produce tripping action; It comprises an electromagnet, and one end of its solenoid TQXQ obtains a unidirectional voltage (electric current) from described power acquisition collector, and its other end, by a controllable silicon SCR ground connection, is provided with an electric capacity C4 between described controllable silicon SCR control end and ground;
One short circuit detection circuit, whether it has short circuit to occur in order to detect, export a control signal when a short circuit occurs, described short circuit detection circuit comprises: three groups of short circuit detecing elements and the first judgment component, described short circuit detecing element is in order to produce a variable quantity (here with tongue tube Sa when being short-circuited exception, Sb, Sc is example), described the first judgment component (adopting comparator IC1-1 ~ IC1-3 to be example here) obtains a variable quantity by described short circuit detecing element and compares with a benchmark preset, (both quantity is consistent with phase line number), described tongue tube Sa, Sb, one 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, is connected with the output of described power acquisition collected works unit, 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, obtained by component piezoresistance R3, a R4 in the present embodiment, wherein, one end of described divider resistance R3 is connected with the electric capacity C1 negative electrode in described voltage stabilizing circuit, and the other end is connected with the output of described power acquisition collected works unit, diode D7, D10, D13 is provided with between the output of each comparator IC1-1 ~ IC1-3 and positive terminal, tongue tube Sa, Sb, Sc of each described short-circuit detecting circuit are connected with the control end of described controllable silicon SCR by diode D5, D9, a D12, in order to export dropout control signal to described controllable silicon SCR,
One from lock control subelement, its receive described in the signal of sign short-circuit state of output of short circuit detecting subelement, thus make described motor not produce action; It comprises: one first triode Q2, the collector electrode of described first triode Q2 is connected with the output of described power acquisition collected works unit, the grounded emitter of described first triode Q2, the output signal of the comparator IC1-1 ~ IC1-3 described in one pull-up resistor R5 obtains, and have the base stage of the first described triode Q2 to be connected, and described base stage is connected to the ground by resistance R6, between the emitter and collector of the first described triode Q2, be connected with a resistance R7;
One motor automatic closing controls subelement, and it comprises: one second triode Q1, and the base stage of described second triode Q1 is connected with the collector electrode of the first described diode Q2, the grounded emitter of described second triode Q1; Described motor M one end is connected with the output of described power acquisition collected works unit, and the other end is connected with the collector electrode of the second described triode Q1;
Preferably, in order to match with the result in mechanical structure, the circuit controlling subelement be provided with limit switch K1, reach stall behind precalculated position in order to control motor M, thus guarantee breaker closing position at described motor automatic closing;
The circuit preferably controlling subelement at described motor automatic closing is provided with the inspection switch K3 (also referred to as locking) of an artificial opening and closing, and namely when this K switch 3 is in off-state, described motor M all can not action under any state;
Also comprise: a dropout subelement reset circuit, it comprises: a reset key REST, and its first end is connected with the control end of described controllable silicon SCR, its second end ground connection;
Preferably be provided with LED a, LEDb, a LEDc, in order to play indicative function at the output of described comparator IC1-1 ~ IC1-3.
Refer to shown in Fig. 5 B, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram two, this schematic diagram and schematic diagram one must be distinguished and be, add external control subelement, its object can meet the needs as prepaid fee power management system, described external control subelement comprises: be provided with a unidirectional current element, as diode D16, and control element, namely described control element comprises and also comprises to the control of dropout subelement control motor automatic closing being controlled to subelement, described automatic closing controls subelement and comprises: one the 3rd triode Q4, its base stage receives external control signal, an electric capacity C5 is connected with between its emitter and collector, the wherein negative electrode of electric capacity C5 and the grounded emitter of described 3rd triode Q4, the collector electrode of the 3rd described triode Q4 is connected with the control end of described controllable silicon SCR by a diode D15, namely, when external control signal is high potential, described release does not produce trip action, one the 4th triode Q3, the emitter and collector of the 4th described triode Q3 (positive-negative-positive) is arranged at described motor M automatic closing and controls on subelement circuit, the base stage of the 4th described triode Q3 is connected with the collector electrode of the 3rd described triode Q4, namely, when external control signal is high potential, the 4th described triode Q3 is conducting, when described external control signal is electronegative potential, described dropout subelement produces trip action, and the 4th triode Q3 is simultaneously in cut-off state, and namely motor automatic closing control subelement can not action.
Preferably also be provided with external control indicating circuit, it comprises: a light-emitting diodes LED pipe, one end ground connection, and the other end is connected with a resistance R11, and when external control signal is high voltage, it is in illuminating state, otherwise then extinguishes.
Refer to shown in Fig. 5 C, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram three, the difference of the present embodiment and above-mentioned schematic diagram one is mainly, it adds a spacing subelement accordingly, and do not adopt limit switch, thus save space; Described spacing subelement comprises: a photoelectrical coupler IC, one 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, an output head grounding of described photoelectrical coupler IC, another output is connected with the base stage of the second described triode Q1; Namely after described motor M realizes automatic closing, the output of described photoelectrical coupler IC exports electronegative potential, thus the second described triode Q1 is ended because base stage obtains electronegative potential, and then described motor M automatic closing is made to control subelement open circuit, final motor stalling.
Refer to shown in Fig. 5 D, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram four, the difference of the present embodiment and above-mentioned schematic diagram one is mainly, the present embodiment detects for overcurrent, therefore not at use tongue tube Sa, Sb, Sc but adopt current acquisition element, that adopt here is current transformer TAa, Tab, Tac, it is separately positioned in each phase line, and be converted into voltage signal, be transferred to described comparator IC1-1 ~ IC1-3, the Signal transmissions of output is not only given described self-locking and automatic shutting-brake control subelement by the comparator IC1-1 ~ IC1-3 simultaneously, be transferred to the control end of the controllable silicon SCR of described dropout subelement simultaneously, namely when producing throat floater, described comparator IC1-1 ~ IC1-3 exports high potential signal to the control end of described controllable silicon SCR, thus make it produce trip action, it should be noted that the reference voltage of the end of oppisite phase of described comparator IC1-1 ~ IC1-3 is owing to have employed slide rheostat w, so the threshold value that overcurrent compares is adjustable.
Refer to shown in Fig. 5 E, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram five, the difference of the present embodiment and above-mentioned schematic diagram one is mainly, it adds a temperature detection subelement accordingly, in order to when temperature reaches certain threshold value, make described circuit breaker open circuit, and auto-lock function is produced to motor; Described temperature detection subelement comprises: at least for the detector unit (here to adopt temperature sensor ta, tb, tc) that a phase line is arranged, it is connected with one second judgment component (here to adopt comparator IC2-1 ~ IC2-3), the second described judgment component according to the state of detector unit described under 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 sensors ta, tb, tc and comparator IC2-1 ~ IC2-3 (both quantity is consistent with phase line number) for this enforcement, one 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, is connected with the output of described power acquisition collected works unit, 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; Obtained by component piezoresistance R2, a R3 in the present embodiment, wherein, one end of described divider resistance R2 is connected with the electric capacity C1 negative electrode in described voltage stabilizing circuit, and the other end is connected with the output of described power acquisition collected works unit (sharing with described short circuit self-locking subelement); Diode D22, D19, D16 is provided with between the output of each comparator IC2-1 ~ IC2-3 and positive terminal; Described temperature detection subelement is connected with the control end of described controllable silicon SCR by diode D21, D17, a D14, in order to export dropout control signal to described controllable silicon SCR; Preferably at the output of described comparator IC2-1 ~ IC2-3, a LED Ta ~ LEDTb is also set in order to play indicative function.
Refer to shown in Fig. 5 F, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram six, the present embodiment matches with above-mentioned mechanical open circuit self-locking, therefore be mainly with the difference of above-mentioned schematic diagram two in the structure of circuit, here be no longer provided with short circuit detecting unit and self-locking and automatic shutting-brake control subelement, but only adopt mechanical self-latching to be namely presented as that the form of short circuit lock K4 reaches object of the present invention from circuit.
Refer to shown in Fig. 5 G, its automatic closing having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention controls subelement schematic diagram seven, this schematic diagram embodies and realize an intelligentized example by processor in existing control technology, wherein, by current transformer TAa, TAb, TAc is from power line A, B, current value in the every bar phase line of the upper acquisition of C, and by an analog to digital conversion circuit, be converted to corresponding digital signal, be transferred to described processor MCU, the program preset in described processor MCU, the power information obtained can be judged, judge the abnormal problems such as overcurrent/short circuit, thus export corresponding control signal, an analog power circuit, it is made up of divider resistance R1 ~ R6, obtains magnitude of voltage to described analog to digital conversion circuit from every bar phase line, one digital power circuit, obtain after power supply signal by voltage transformer BT from power line, after the process of 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 the supply of electric power to described processor MCU, thus when maintenance, avoid the unreasonable control because of processor MCU to cause accident, can also comprise: one group of temperature sensor IC1 ~ IC3, it detects the temperature value of each phase line Nodes, and is converted into a digital data transmission to described processor MCU, exports a control signal when having described processor MCU to judge that temperature exceeds a threshold value, one current rectifying and wave filtering circuit is made up of three diode D1 ~ D3 and electric capacity C2 resistance R8, it provides power supply supply for a release TQXQ, the de-mouth coil 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 of wire/wireless and other communication equipment, thus can receive the control signal (pre-payment combined floodgate/power-off signal) of outer end, one memory, in order to store the every data in circuit breaker, one display circuit, in order to show the various state informations detected by circuit breaker, the box body of circuit breaker is provided with corresponding display screen, one clock circuit and an input through keyboard, it is respectively in order to provide clock signal and input command to described processor MCU, from specific implementation, these functional circuits described above say that corresponding circuit has a variety of, be all well-known, those skilled in the art can specifically select as required, are not just repeating here, output PX.1, PX.2 of described processor MCU in order to being connected from lock control subelement in embodiment above, and then control the action that motor automatic closing controls subelement, also motor automatic closing that can be direct with described controls subelement and is connected, whether removed according to current electricity exception situation by described processor MCU, determine whether to need to allow described automatic closing control the action of subelement.
Refer to shown in Fig. 5 H, its automatic closing control subelement having the built-in C type intelligent circuit breaker of automatic switching-in function for the present invention realizes reciprocating motion control circuit schematic diagram to motor, in this schematic diagram, there is the triode Q5 of four groups of PNP, Q6, Q8, Q9 and protection diode D10, D11, D13, D14, its collector electrode is connected with the anode of protection diode, its emitter is connected with the negative electrode of diode, and the positive terminal of motor is connected with the triode Q6 of two groups of PNP, Q9 and protection diode D11, D14 collector electrode, and the emitter between two groups links together, the end of oppisite phase of described motor is connected with triode Q5, Q8 and protection diode D10, D13 collector electrode of other two groups of PNP, and the emitter between two groups links 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 is connected with processor one control end PX.1 (referring to 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 pole 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, PNP triode Q6 base stage is simultaneously connected with described PNP triode Q4 collector electrode.By the output signal of processor control end PX.1 and PX.2, thus control the rotating of motor, thus realize the reciprocating motion of corresponding actions mechanism.
The foregoing is only preferred embodiment of the present invention, is only illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the claims in the present invention limit to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (7)
1. have a built-in C type intelligent circuit breaker for automatic switching-in function, it is characterized in that, it comprises:
One box body, is provided with circuit breaker actuating mechanism in described box body, and end of incoming cables and leading-out terminal, and described circuit breaker actuating mechanism realizes triggering by the poke rod being positioned at described box body;
Also comprise: a loading plate, it is positioned at described box body, described loading plate is provided with a parallel moving mechanism and a clicking section, and described clicking section and described poke rod lean;
Under the control of an automatic switching-in control unit, reciprocating action is carried out in the clicking section described in described parallel moving mechanism promotes, thus makes the described circuit breaker actuating mechanism described in poke rod triggering realize the on-off of circuit breaker;
Described clicking section is a shift fork, and described shift fork one end is provided with one group of mouth, and described poke rod is placed in described group mouth, and the both wings of described shift fork are respectively arranged with connecting hole, and middle part and the described loading plate of described shift fork are coupling;
Described parallel moving mechanism comprises: a pair electromagnet, and it is installed on described loading plate respectively, and the connecting hole described in electromagnet armature end and described in each is hinged, and the electromagnet described in two is in not identical operating state;
Described automatic switching-in control unit comprises:
One power acquisition collected works unit, it obtains electric power signal from phase line, and carries out rectifying and wave-filtering process;
Described automatic switching-in control unit also comprises:
One short circuit detection circuit, whether it has short circuit to occur in order to detect, and produces a dropout control signal when a short circuit occurs;
One dropout subelement, in order to when receiving described dropout control signal, makes described circuit breaker actuating mechanism produce tripping action.
2. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 1, it is characterized in that, described short circuit detection circuit comprises: at least for the short circuit detecing element that a phase line is arranged, it is connected with one first judgment component, the first described judgment component, according to the state of short circuit detecing element described under the abnormal conditions that are short-circuited, produces self-locking control signal and described dropout control signal.
3. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 2, it is characterized in that, described automatic switching-in control unit also comprises: a temperature detection subelement, it detects liquidus temperature, when described temperature reaches a threshold value, produce a self-locking control signal and/or dropout control signal.
4. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 3, it is characterized in that, described temperature detection subelement comprises: at least for the detector unit that a phase line is arranged, it is connected with one second judgment component, the second described judgment component according to the state of detector unit described under occurrence temperature abnormal conditions, the self-locking control signal described in generation and/or dropout control signal.
5. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 1, it is characterized in that, described automatic switching-in control unit also comprises: a processor, it is connected with described power acquisition collected works unit by an analog to digital conversion circuit, in order to according to the electric current of programmed decision collection preset in described processor or/and whether voltage exists exception, and export control signal accordingly.
6. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 5, it is characterized in that, described automatic switching-in control unit also comprises: a display circuit or memory circuit or telecommunication circuit at least one of them, it is connected with described processor.
7. the built-in C type intelligent circuit breaker with automatic switching-in function according to claim 5, it is characterized in that, described automatic switching-in control unit also comprises: a keyboard circuit, and it is connected with described processor, in order to order to the input of described processor is corresponding.
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| CN201210442926.7A CN102945775B (en) | 2009-09-29 | 2009-09-29 | There is the built-in C type intelligent circuit breaker of automatic switching-in function |
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| CN201210442926.7A CN102945775B (en) | 2009-09-29 | 2009-09-29 | There is the built-in C type intelligent circuit breaker of automatic switching-in function |
| CN 200910179274 CN101807494B (en) | 2009-09-29 | 2009-09-29 | Built-in C type intelligent circuit breaker with automatic switch-on function |
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| CN107026060A (en) * | 2016-01-29 | 2017-08-08 | 俊朗电气有限公司 | The breaker of maloperation after a kind of prevention short circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332064Y (en) * | 1998-04-02 | 1999-08-04 | 莫建平 | Electric operation mechanism of circuit breaker |
| CN201156505Y (en) * | 2008-01-03 | 2008-11-26 | 金农 | Intelligent digital leakage protector |
| CN201562646U (en) * | 2009-09-29 | 2010-08-25 | 湖北盛佳电器设备有限公司 | Built-in C-type intelligent circuit breaker with automatic closing function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1022783C (en) * | 1990-08-29 | 1993-11-17 | 郭行干 | Electric operating device for automatic switch |
| CN2435835Y (en) * | 2000-06-29 | 2001-06-20 | 李乾良 | Integrated electric switching on leakage line breaker |
| US6590481B2 (en) * | 2000-12-28 | 2003-07-08 | Eaton Corporation | Fast acting, electrically powered operator for transfer switch and transfer switch incorporating same |
| CN101188178B (en) * | 2007-11-30 | 2011-01-19 | 赵建清 | Electric leakage current breaker |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332064Y (en) * | 1998-04-02 | 1999-08-04 | 莫建平 | Electric operation mechanism of circuit breaker |
| CN201156505Y (en) * | 2008-01-03 | 2008-11-26 | 金农 | Intelligent digital leakage protector |
| CN201562646U (en) * | 2009-09-29 | 2010-08-25 | 湖北盛佳电器设备有限公司 | Built-in C-type intelligent circuit breaker with automatic closing function |
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| CN102945775A (en) | 2013-02-27 |
| CN101807494B (en) | 2013-08-21 |
| CN101807494A (en) | 2010-08-18 |
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Denomination of invention: Built-in C-type intelligent circuit breaker with automatic closing function Effective date of registration: 20230331 Granted publication date: 20160113 Pledgee: Bank of China Limited Wuhan Hanyang sub branch Pledgor: HUBEI SHENGJIA WIRING Co.,Ltd. Registration number: Y2023420000144 |
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