CN202142465U - Frame-type breaker having self-locking function - Google Patents
Frame-type breaker having self-locking function Download PDFInfo
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- CN202142465U CN202142465U CN201120040210U CN201120040210U CN202142465U CN 202142465 U CN202142465 U CN 202142465U CN 201120040210 U CN201120040210 U CN 201120040210U CN 201120040210 U CN201120040210 U CN 201120040210U CN 202142465 U CN202142465 U CN 202142465U
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Abstract
Provided is frame-type breaker having self-locking function, comprising a frame-type breaker body, a user input unit used for inputting locking password or unlocking password, an authentication processing unit which receives the locking password or unlocking password from the user input unit and outputs a control signal after authentication, and a locking action unit which receives the control signal from the authentication processing unit and orders the frame-type breaker body to perform self-locking action or unlocking action.
Description
Technical Field
The utility model relates to a circuit breaker, in particular to are frame-type circuit breaker who has self-locking function after setting up the password for the open circuit.
Background
The circuit breaker is a very important electric power device and is widely applied in the field of power utilization management, but the following defects still exist.
With current circuit breaker from the function, after overhauing the break-out, overhaul the workman and not accomplished the operation yet, if circuit breaker switched on in a trade this moment, not only can cause the trouble of electric wire netting, more can influence workman's life safety. At present, two measures are taken by a power station, one measure is that a circuit breaker is disconnected before a maintenance worker goes out, and a warning board is hung on the circuit breaker; another kind is for locking the circuit breaker, and the measure of unblanking is closed after the maintenance workman returns, has solved this problem to a certain extent, nevertheless has the not high condition of workman return stroke time long efficiency.
In view of the above-mentioned shortcomings, the inventor of the present invention has finally obtained the present creation through a long period of research and practice.
Disclosure of Invention
An object of the utility model is to provide a frame-type circuit breaker with self-locking function for overcome above-mentioned defect.
In order to achieve the above object, the utility model discloses a technical scheme lie in, provide a frame-type circuit breaker with self-locking function, it includes a frame-type circuit breaker body, still includes:
a user input unit for inputting a lock password or an unlock password;
the authentication processing unit receives the locking password or the unlocking password from the user input unit, and outputs a control signal after authentication;
and the locking action unit receives the control signal from the authentication processing unit and enables the frame type circuit breaker body to generate self-locking or unlocking action.
Preferably, the frame type circuit breaker body includes:
a housing;
the shell is provided with an outgoing line connecting block and an incoming line connecting block which are connected with an external circuit, and the number of the outgoing line connecting block and the number of the incoming line connecting block are consistent with the number of the phase lines, wherein the outgoing line connecting block is in shaft connection with a conductive movable contact block, and the outgoing line connecting block and the incoming line connecting block are electrically connected and separated through the swinging of the conductive movable contact block;
a breaking mechanism disposed in the housing, comprising: a power unit and an action unit; wherein,
when the action unit is triggered, the conductive movable contact block swings, so that the connection or disconnection of a circuit is realized;
the power unit is used for providing power to enable the action unit to be switched on and off instantly.
Preferably, the power unit includes:
an energy storage spring;
the energy storage action mechanism converts energy in other forms into elastic potential energy of an energy storage spring;
and the limiting mechanism limits the energy storage spring to enable the energy storage spring to keep potential energy before the limit is not released.
Preferably, the energy storage actuating mechanism includes:
an input section;
a main shaft connected to the input part, and rotating the main shaft through the input part;
the first eccentric wheel is fixedly connected with the main shaft;
the first linkage block is connected with the first eccentric wheel and used for realizing corresponding swinging along with the rotation of the first eccentric wheel;
and the compression block is connected with the first linkage block and is used for compressing the energy storage spring.
Preferably, the limiting mechanism comprises:
the pawl linkage block is coupled in the shell in a shaft way, realizes the unidirectional rotation limitation of the pawl linkage block through a limiting screw and is provided with a triggering end and a limiting end;
the limiting turntable is fixedly connected with the main shaft, a plurality of limiting bulges are arranged on the limiting turntable, and the limiting bulges are abutted against the limiting ends.
Preferably, the method further comprises the following steps: the first return spring is used for realizing the return of the pawl linkage block after being triggered.
Preferably, the action unit includes:
the first linkage shaft is provided with a traction piece, and the traction piece is connected with the conductive movable contact block so as to pull the conductive movable contact block to generate a swinging action;
the second linkage block is coupled with the first linkage block by a shaft;
the third linkage block is coupled with the second linkage block in a shaft way, and the first end of the third linkage block is connected with the traction piece;
the main reset spring is connected with the first end of the third linkage block and is used for realizing the reset of the third linkage block;
the fourth linkage block is in shaft connection with the first linkage block and is provided with a first abutting end and a second abutting end, and the first abutting end abuts against a limiting rod;
the fifth linkage block is coupled in the shell in a shaft way, is abutted against the first abutting end and is provided with a circuit breaking triggering end;
and the triggering rotating block is provided with a first abutting part and a pressing part, the first abutting part abuts against the fifth linkage block, and the pressing part is used for receiving a pressing action caused by an external circuit-breaking command.
Preferably, the device further comprises a second return spring, after the trigger rotating block is pressed, the fifth linkage block is separated from the trigger rotating block, and the second return spring is used for enabling the fifth linkage block to rotate around the shaft.
Preferably, the user input unit includes a keyboard.
Preferably, the authentication processing unit is a microprocessor.
Preferably, the locking action unit includes:
a first linkage member rotating about an axis;
the first end of the first linkage rod is connected with the second end of the first linkage piece;
the second end of the first linkage piece drives the rotating shaft to rotate;
the trigger part is sleeved on the rotating shaft, corresponds to the pressing part on the trigger rotating block and enables the frame type circuit breaker body to generate a circuit breaking action by pressing the pressing part;
the armature end of the electromagnet corresponds to the first end of the first linkage piece;
and the action control circuit receives the control signal so as to control the electrifying state of the electromagnet coil.
Preferably, the operation control circuit includes:
the fourth triode and the seventh triode are connected with two output ends of the microprocessor;
the base electrode of the eighth triode is connected with the collector electrode of the fourth triode;
the base electrode of the sixth triode is connected with the emitting electrode of the fourth triode;
a base electrode of the fifth triode is connected with an emitting electrode of the seventh triode, an emitting electrode of the sixth triode is connected with an emitting electrode of the fifth triode, and a collector electrode of the fifth triode is connected with an emitting electrode of the eighth triode;
the emitter of the ninth triode is connected with the collector of the sixth triode, and the collector of the ninth triode is connected with the collector of the eighth triode;
the ninth diode is arranged between the base electrode of the fourth triode and the emitter electrode of the sixth triode;
the twelfth diode is arranged between the base electrode of the seventh triode and the emitter electrode of the fifth triode;
and the output end and the input end of the coil of the electromagnet are respectively connected between the emitter of the fifth triode and the emitter of the sixth triode.
Preferably, the secondary self-locking mechanism comprises:
the ring is fixedly connected with the rotating shaft, and the inner side of the ring is provided with a self-locking notch;
a self-locking housing having a notch therein;
and the self-locking block is internally provided with a third return spring and is provided with a self-locking end which is propped against the inner ring of the circular ring.
Preferably, the input part is a handle and/or a motor.
The user input unit also comprises a wireless receiving and sending circuit and a remote controller, wherein the wireless receiving and sending circuit is connected with the authentication processing unit and used for receiving the password input of the remote controller in a wireless mode.
Compared with the prior art the beneficial effects of the utility model reside in that, after overhauing the switch-off, when overhauing the workman and not accomplishing the operation yet, can guarantee that the circuit breaker can not trade the combined floodgate, influence workman's life safety. After the long-distance overhaul is finished, the worker can inform the password of the power station, the power station inputs the password authentication, and the switch-on can be carried out, so that the overhaul efficiency is improved.
Drawings
Fig. 1 is a schematic perspective view of a frame-type circuit breaker with a self-locking function according to the present invention;
fig. 2 is a schematic sectional view of a frame-type circuit breaker with a self-locking function according to the present invention;
fig. 3 is a partially exploded perspective view of an exemplary frame-type circuit breaker with self-locking function according to the present invention;
fig. 4 is a schematic sectional structure diagram of a frame-type circuit breaker with a self-locking function according to the present invention;
fig. 5 is a mechanical exploded perspective view of the self-locking function unit of the frame-type circuit breaker with self-locking function of the present invention;
fig. 6A is a schematic cross-sectional view of the frame-type circuit breaker with self-locking function of the present invention in a normal state without closing the brake;
fig. 6B is a schematic side view of the frame-type circuit breaker with self-locking function of the present invention in a normal state without closing the brake;
fig. 7A is a schematic cross-sectional view of the frame-type circuit breaker with self-locking function after closing in a normal state;
fig. 7B is a schematic diagram of a side view of the frame-type circuit breaker with self-locking function after closing;
fig. 8A is a schematic cross-sectional view of the self-locking state of the frame-type circuit breaker with self-locking function due to short circuit according to the present invention;
fig. 8B is a schematic side view of the self-locking state of the frame-type circuit breaker with self-locking function due to short circuit according to the present invention;
fig. 9A is a schematic cross-sectional view of the frame-type circuit breaker with self-locking function after setting a self-locking state;
fig. 9B is the schematic diagram of the side view after the self-locking state is set for by the frame-type circuit breaker with self-locking function.
Fig. 10 is a schematic view of a first embodiment of a control circuit portion of a frame-type circuit breaker with a self-locking function according to the present invention;
fig. 11 is a schematic diagram of a second embodiment of a control circuit part of a frame-type circuit breaker with a self-locking function according to the present invention;
fig. 12 is a schematic diagram of the frame type circuit breaker with self-locking function according to the present invention, wherein the control circuit portion corresponds to the remote controller circuit.
Detailed Description
The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.
Please refer to fig. 1 and fig. 2, which are a schematic perspective view of a frame-type circuit breaker with a self-locking function and a schematic sectional view of the frame-type circuit breaker with a self-locking function; to frame-type circuit breaker with self-locking function its include: a frame type circuit breaker body for performing a basic circuit breaker function and selectively performing a basic circuit breaker function by a closing button 321 and a trip button 322 provided at an outside thereof, wherein the frame type circuit breaker body comprises:
a housing;
the shell is provided with an outgoing line connecting block 312 and an incoming line connecting block 311 which are connected with external lines, and the number of the outgoing line connecting blocks and the incoming line connecting blocks can be consistent with the number of the phase lines; the outgoing line connecting block 312 is in shaft connection with a conductive electric contact block 313, the connection is in electric connection, and through the swing of the conductive electric contact block 313, the outgoing line connecting block 312 is electrically connected with and separated from the incoming line connecting block 311 when the conductive electric contact block is in contact with the incoming line connecting block 311;
and a breaking mechanism (not shown) disposed in the housing for closing and tripping the frame-type circuit breaker body.
The shell is provided with a user input unit 6 for inputting a locking password and an unlocking password. The user input unit 6 includes a keyboard, which may be a physical keyboard or a touch keyboard.
Please refer to fig. 3 and fig. 4, which are a partially exploded perspective view of the frame-type circuit breaker body with self-locking function and a schematic sectional view of the frame-type circuit breaker with self-locking function according to the present invention, respectively; it mainly embodies the structure of breaking mechanism, breaking mechanism include: a power unit and an action unit; wherein,
when the action unit is triggered, the conductive movable contact block 313 can swing, so that the connection or disconnection of a circuit connected with the frame type circuit breaker body is realized;
the power unit is used for providing power to enable the action unit to be switched on and off instantly.
The power unit comprises: the energy storage spring 36 is used for realizing the switching-on function of the frame type circuit breaker body, and the instantaneous switching-on action is realized through the instantaneous release of the stored potential energy;
the energy storage action mechanism converts other forms of energy into elastic potential energy of the energy storage spring 36, wherein the other forms of energy can be artificially generated mechanical energy or mechanical energy converted from electric energy; wherein, energy storage actuating mechanism include: an input part, which may be the motor 51 or the handle 52, or both of them;
a main shaft 32, which is provided on two supporting plates 341 in the housing as a driving shaft for transmitting torque, and which rotates the main shaft 32 by the input part;
a first eccentric wheel 37, which is fixed with the main shaft 32 and rotates along with the main shaft 32 when the main shaft 32 rotates due to the action of the input part;
a first linkage block 38 connected to the first eccentric 37 for rotating in response to the rotation of the first eccentric 37;
and the pressing block 36 is connected with the first linkage block 38, and when the torque transmitted by the input part is linked through the main shaft 32, the first eccentric wheel 37 and the first linkage block 38, the pressing block 36 is pushed to compress the energy storage spring 36.
The limiting mechanism is used for enabling the energy storage spring 36 to keep potential energy before limiting is released, namely the energy storage spring 36 is compressed by the pressing block 36 due to energy input of the input part, and the energy storage spring cannot realize resetting due to the action of the limiting mechanism. The stop gear include: a pawl linkage block 55, which is coupled in the housing, and limits the pawl linkage block 55 from rotating in one direction by a limit screw 56, and has a trigger end and a limit end;
and the limiting turntable 54 is fixedly connected with the main shaft 32, a plurality of limiting protrusions 541 are arranged on the limiting turntable 54, and the limiting protrusions 541 are abutted against the limiting end of the pawl linkage block 55.
Further comprising: and the first return spring 352 is hung on the pawl linkage block 55 and used for returning the pawl linkage block 55 after being triggered to rotate.
The trigger end of the pawl linkage block 55 abuts against an abutting portion 61, and when the abutting portion 61 is triggered by an external device, such as an electromagnet, so as to cause the abutting portion 61 to be separated from the trigger end of the pawl linkage block 55, the limit end is separated from the limit protrusion of the limit rotary disc 54, so that the compression block 36 is instantaneously pushed due to the instantaneous action of the elastic force of the energy storage spring 36, and the instantaneous swing of the first linkage block 38 is caused.
The action unit obtains energy and power from the power unit, so that the swinging of the conductive electric contact block 313 is realized through a series of transmission, and finally the outgoing line connecting block 311 and the incoming line connecting block 312 are electrically connected or separated, wherein the power unit comprises:
a first linkage shaft 332, on which a traction piece 331 is arranged, said traction piece 331 is connected with said conductive moving contact block 313, thereby drawing said conductive moving contact block 313 to produce a swinging motion;
a second linkage block 62 coupled to the first linkage block 332;
a third link block 53, which is coupled to the second link block 62, and a first end of which is connected to the drawing member 331;
a main return spring 353 connected to a first end of the third link block 53 for returning the third link block 53;
the fourth linkage block 39 is in shaft connection with the first linkage block 38 and is provided with a first abutting end and a second abutting end, and the first abutting end abuts against a limiting rod 63;
a fifth linkage block 34, which is coupled to the housing, abuts against the first abutting end, and has a circuit breaking triggering end;
a trigger rotating block 57 having a propping portion and a pressing portion, the propping portion propping against the fifth linkage block 34, the pressing portion receiving the pressing action caused by the external breaking command, the pressing portion being a cylindrical rod extending out, if the armature end of the electromagnet propping against the pressing portion of the trigger rotating block 57, when the electromagnet is energized by the external control command, the armature end makes the pressing portion stressed, and the propping portion is separated from the fifth linkage block 34, so as to trip the frame-type circuit breaker body.
The device further comprises a second return spring 352, after the trigger rotating block 57 is pressed, the fifth linkage block 34 is separated from the trigger rotating block 57, and the second return spring 352 is used for enabling the fifth linkage block 34 to rotate around the shaft.
Fig. 5 is a schematic mechanical exploded perspective view of a self-locking unit of a frame-type circuit breaker with self-locking function according to the present invention; at first to this three-dimensional exploded view its package trade a short circuit self-locking function structure, this is also the utility model discloses a characteristics place, be the self-locking action that produces when producing short circuit fault promptly, short circuit self-locking function structure include:
the short-circuit detection piece is in a shaft connection state in the frame type circuit breaker body, when a phase line connected with the frame type circuit breaker body has a short-circuit fault, a strong magnetic field is necessarily formed, and a rotary mechanical action can be generated due to the fact that the short-circuit detection piece is in the shaft connection state; the short circuit detection piece is at least one magnetic conduction rotation piece 43, three magnetic conduction rotation pieces 43 can be arranged to correspond to each outgoing line connecting block 312 respectively, when a short circuit magnetic field is generated, the short circuit magnetic field generates rotation action, a reset spring 451 is arranged on a rotating shaft of the magnetic conduction rotation piece 43, the magnetic conduction rotation piece 43 rotates around a shaft and is provided with an induction section and a pressing section, the induction section is located near the outgoing line connecting block 312 or the incoming line connecting block 311, and the induction section is arranged on the lower portion of the outgoing line connecting block 312.
The short-circuit action trigger mechanism is combined with the short-circuit detection piece and is provided with a trigger end which is combined with the breaking mechanism in the frame-type circuit breaker body, and when the short-circuit action trigger mechanism is linked due to the rotating mechanical action of the short-circuit detection piece, the trigger end triggers the breaking mechanism to generate breaking action; the short circuit action trigger mechanism comprises:
the first linkage 441 rotates around an axis, and a first end of the first linkage abuts against the pressing section of the magnetically permeable rotating member 43, and further includes: a return spring 452 is disposed on the shaft of the first linking member 441 for returning the same;
a first linkage rod 442, a first end of which is connected to a second end of the first linkage member 441;
the second end of the first linkage rod 442 drives the rotating shaft 445 to rotate;
and a trigger part 446 which is sleeved on the rotating shaft 445 and corresponds to the pressing part on the trigger rotating block 57, and the frame-type circuit breaker body generates a circuit breaking action by pressing the pressing part.
Certainly, when a short-circuit fault occurs, the structure can already realize the tripping action of the frame-type circuit breaker body, but once the short-circuit action triggering mechanism is tripped and disconnected, the short-circuit action triggering mechanism resets under the action of the reset springs 451 and 452 due to no magnetic field, and the frame-type circuit breaker body can be reclosed according to a corresponding closing command, but if the short-circuit fault is not relieved, the magnetic conduction rotating piece 43 serving as the short-circuit detection piece and the short-circuit action triggering mechanism are linked, so that the secondary tripping action is realized, and the operation is repeated in cycles, so that the frame-type circuit breaker body is continuously switched between closing and tripping, and the service life of the frame-type circuit breaker body can be influenced or other equipment of a power grid is influenced.
For realizing the utility model discloses a set for self-locking function's purpose, under normal condition promptly, for overhauing and not wanting to take place the combined floodgate accident, the structure that corresponds still includes:
an authentication processing unit, which is located on the control circuit and receives the password from the user input unit 6, thereby outputting the designated control signal;
and the locking action unit receives the control signal from the authentication processing unit so as to generate an action for locking or unlocking the closing action of the breaking mechanism.
The locking action unit in this embodiment includes: an electromagnet 28 having an armature end corresponding to the first end of the first linkage member 441; and an operation control circuit for receiving the control signal and controlling the energization state of the coil of the electromagnet 28.
In order to realize the technical effect of preferred, the utility model discloses still provide a secondary self-locking mechanism, it also enables the mechanism of breaking can not automatic re-setting, nevertheless can not adopt to setting for the auto-lock. Wherein, secondary self-locking mechanism include:
a circular ring 447 which is fixedly connected with the rotating shaft 445, and the inner side of the circular ring 447 is provided with a self-locking notch 2471;
a self-locking shell 42, which has a notch 421, and the self-locking shell 42 is fixed on the frame type circuit breaker body shell;
a self-locking block 41, which is provided with a third return spring inside and a self-locking end, and the self-locking end is abutted against the inner ring of the circular ring 447, and when a short circuit occurs, the self-locking end is embedded into the self-locking notch 4471.
Please refer to fig. 6A and fig. 6B, which are a schematic cross-sectional view of the frame-type circuit breaker with self-locking function in a normal state and a schematic side view of the frame-type circuit breaker with self-locking function in a normal state; at this time, the frame-type circuit breaker of the present invention is in an open circuit state, and the conductive movable contact block 313 is separated from the incoming line connection block 311; the magnetic conduction rotating block 313 is arranged at the lower part of the outgoing line connecting block 312, and does not rotate because of no short-circuit magnetic field; meanwhile, the short circuit action trigger mechanism is also in a normal state; the self-locking block 41 is separated from the self-locking notch 4471.
Meanwhile, the user input unit is not locked to input the password, and the locking action unit does not act.
Fig. 7A and 7B are schematic diagrams showing a cross-sectional view of the self-locking frame-type circuit breaker after closing in a normal state and a schematic diagram showing a side view of the self-locking frame-type circuit breaker after closing in a normal state; compared with the above figure, at this time, the frame-type circuit breaker of the present invention is in the access state, and the conductive movable contact block 313 contacts with the incoming line connection block 311; the magnetic conduction rotating block 313 is arranged at the lower part of the outgoing line connecting block 312, and does not rotate because of no short-circuit magnetic field; the short circuit action trigger mechanism is also in a normal working state; the self-locking block 41 is separated from the self-locking notch 4471.
Please refer to fig. 8A and 8B, which are a schematic cross-sectional view and a schematic side view of the self-locking state of the frame-type circuit breaker with self-locking function due to short circuit according to the present invention; when a short-circuit fault occurs, a strong magnetic field is generated, the sensing section of the magnetic conduction rotation piece 43 swings towards the outgoing line connecting block 312, so that the pressing section presses the first linkage piece 441, the first linkage piece 441 swings, the first linkage rod 442 is pushed, the rotating shaft 445 rotates, then the triggering part 446 swings, the pressing part on the triggering rotation piece 57 is pressed, and the pressing part is pressed, so that the frame-type circuit breaker body generates a circuit breaking action.
Meanwhile, the ring 447 rotates due to the rotation shaft 445, so that the self-locking end of the self-locking block 41 is embedded into the self-locking notch 4471 and extends out of the notch 421 of the self-locking housing 42 under the pushing action of the third return spring 411.
Thus, although the frame-type circuit breaker body is in the open circuit state, the strong magnetic field caused by the short circuit disappears, and the magnetic conductive rotating piece 43 is reset under the action of the reset spring 451. However, since the self-locking block 41 extends out of the notch 421 of the self-locking housing 42, the self-locking end cannot be separated from the self-locking notch 4471, so that the rotating shaft 445 cannot rotate, and the triggering part 446 still presses the pressing part on the triggering rotating block 57, thereby forming self-locking.
Fig. 9A and 9B are schematic cross-sectional views of a short circuit self-locking state of the frame-type circuit breaker with self-locking function and a schematic side-view of a broken circuit self-locking state of the frame-type circuit breaker with self-locking function, respectively; in the open circuit state, the user input unit inputs a lock password, and at this time, the lock action unit receives a control signal from the authentication processing unit, so that the coil of the electromagnet 28 is turned on, and the armature acts to push the first end of the first linkage 441, so that the first linkage 441 swings, thereby pushing the first linkage 442, further rotating the rotating shaft 445, and then the trigger 446 swings, so that the pressing part on the trigger rotating block 57 is pressed, thereby forming the lock state.
Of course, when the user input unit inputs an unlocking password, the locking operation unit receives a control signal from the authentication processing unit, so that the coil of the electromagnet 28 is powered off or the current is reversed, the armature receives the action of a return spring or the action of a reverse magnetic force and is separated from the first end of the first linkage 441, and under the action of the return springs 451 and 452, the first linkage 441 is reset, so that the first linkage 442 is pulled back, the rotating shaft 445 is reset to rotate, and then the trigger 446 is reset to swing, so that conditions are created for separating the pressing part on the trigger rotating block 57.
For unlocking, after an unlocking password is manually input, the self-locking block 41 is manually pressed back into the self-locking housing 42 to separate the self-locking end from the self-locking notch 4471, so that the trigger 446 is separated from the pressing portion of the trigger rotating block 57 by the return spring 452 disposed on the rotating shaft of the first linkage 441 to unlock, and then reclosing can be realized. In case of short circuit fault, the unlocking is completed by directly pressing the self-locking block 41 back into the self-locking shell 42 without inputting an unlocking password.
Fig. 10 is a schematic diagram of a first embodiment of a control circuit portion of a frame-type circuit breaker with a self-locking function according to the present invention; the utility model discloses frame-type circuit breaker defeated control circuit's schematic diagram with self-locking function. The control circuit includes a power supply circuit, the user input unit 6, the authentication processing unit, and the motion control circuit.
The power supply circuit respectively introduces current signals from a phase line A, B, C, carries out rectification processing through a first diode D1, a second diode D2 and a third diode D3, carries out filtering processing through a capacitor C1, carries out voltage reduction processing through a resistor R1, and ensures the stability of output voltage by using a voltage regulator tube D12. The power supply circuit provides stable voltage for all electric elements after passing through the voltage regulator tube D12.
The user input unit 6 transmits the password information input by the user to the authentication processing unit through the keys S1 to S16, of course, the user input unit 6 may adopt a fingerprint collector to replace a keyboard, the input password signal here is a lock password and an unlock password, and the authentication processing unit may be a microprocessor.
The operation control circuit includes: a fourth transistor Q4 and a seventh transistor Q7 connected to two output terminals of the microprocessor, wherein a collector of the fourth transistor Q4 is connected to a base of an eighth transistor Q8, and an emitter of the fourth transistor Q4 is connected to a base of a sixth transistor Q6; the emitter of the seventh triode Q7 is connected with the base of the fifth triode Q5; the emitter of the sixth triode Q6 is connected with the emitter of the fifth triode Q5; the collector of the fifth triode Q5 is connected with the emitter of the eighth triode Q8; the collector of the sixth triode Q6 is connected with the emitter of a ninth triode Q9; the collector of the ninth triode Q9 is connected with the collector of the eighth triode Q8; a ninth diode D9 is disposed between the base of the fourth transistor Q4 and the emitter of the sixth transistor Q6; the twelfth diode D12 is disposed between the base of the seventh transistor Q7 and the emitter of the fifth transistor Q5; and the output end and the input end of the coil of the electromagnet DCT are respectively connected between the emitter of the fifth triode Q5 and the emitter of the sixth triode Q6.
After the circuit breaker is disconnected, a user inputs a locking password through the user input unit for the first time and the locking password is confirmed and stored by the authentication processing unit; the electromagnet DCT is in a working state through the driving of the action control circuit, and the breaker cannot be switched on.
The user inputs the unlock password through the user input unit 6, and the microprocessor judges whether the unlock password is consistent with the pre-stored lock password, so as to change the electric potentials of the first and second output terminals PXx (the first and second output terminals are arranged from top to bottom according to the drawing) of the microprocessor.
When the microprocessor judges that the output is inconsistent, the two ends of the DCT of the electromagnet maintain the original potential difference condition; when the microprocessor judges that the unlocking password is correct, the potential difference at two ends of the electromagnet DCT is changed, so that the armature is retracted, and the locking state is released.
Fig. 11 is a schematic diagram of a second embodiment of a control circuit portion of a frame-type circuit breaker with a self-locking function according to the present invention; the user input unit 6 may further include: the wireless transceiver circuit is connected with the authentication processing unit, a user can be connected with the wireless transceiver circuit through the remote controller, so that the authentication processing unit can be operated through the operation on the remote controller, in addition, the direct contact with the circuit breaker is avoided through the operation of the wireless remote controller, the operation is safe and convenient, after the user inputs an instruction, the processing process of the authentication processing unit is the same as that of the keyboard, and the priority of the keyboard and the wireless operation of the remote controller is set, so that the specific differential operation is realized.
Please refer to fig. 12, which is a schematic diagram of the frame-type circuit breaker with self-locking function according to the present invention, wherein the control circuit part of the frame-type circuit breaker corresponds to a remote controller circuit, the remote controller includes: keyboard key parts S1-S16, a processor connected with the keys S1-S16, a wireless transceiver circuit connected with the processor and matched with the wireless transceiver circuit connected with the authentication processing unit in the appointed user input unit 6, thereby confirming that the remote controller has the authority of controlling the frame type breaker with the self-locking function.
The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (15)
1. The utility model provides a frame-type circuit breaker with self-locking function, its includes a frame-type circuit breaker body, its characterized in that still includes:
a user input unit for inputting a lock password or an unlock password;
the authentication processing unit receives the locking password or the unlocking password from the user input unit, and outputs a control signal after authentication;
and the locking action unit receives the control signal from the authentication processing unit and enables the frame type circuit breaker body to generate self-locking or unlocking action.
2. A frame type circuit breaker with self-locking function as claimed in claim 1, wherein the frame type circuit breaker body comprises:
a housing;
the shell is provided with an outgoing line connecting block and an incoming line connecting block which are connected with an external circuit, and the number of the outgoing line connecting block and the number of the incoming line connecting block are consistent with the number of the phase lines, wherein the outgoing line connecting block is in shaft connection with a conductive movable contact block, and the outgoing line connecting block and the incoming line connecting block are electrically connected and separated through the swinging of the conductive movable contact block;
a breaking mechanism disposed in the housing, comprising: a power unit and an action unit; wherein,
when the action unit is triggered, the conductive movable contact block swings, so that the connection or disconnection of a circuit is realized;
the power unit is used for providing power to enable the action unit to be switched on and off instantly.
3. A frame type circuit breaker with self-locking function according to claim 2, wherein said power unit comprises:
an energy storage spring;
the energy storage action mechanism converts energy in other forms into elastic potential energy of an energy storage spring;
and the limiting mechanism limits the energy storage spring to enable the energy storage spring to keep potential energy before the limit is not released.
4. A frame type circuit breaker with self-locking function according to claim 3, wherein said energy storage actuating mechanism comprises:
an input section;
a main shaft connected to the input part, and rotating the main shaft through the input part;
the first eccentric wheel is fixedly connected with the main shaft;
the first linkage block is connected with the first eccentric wheel and used for realizing corresponding swinging along with the rotation of the first eccentric wheel;
and the compression block is connected with the first linkage block and is used for compressing the energy storage spring.
5. A frame type circuit breaker with self-locking function according to claim 3, wherein said limiting mechanism comprises:
the pawl linkage block is coupled in the shell in a shaft way, realizes the unidirectional rotation limitation of the pawl linkage block through a limiting screw and is provided with a triggering end and a limiting end;
the limiting turntable is fixedly connected with the main shaft, a plurality of limiting bulges are arranged on the limiting turntable, and the limiting bulges are abutted against the limiting ends.
6. A frame type circuit breaker with self-locking function according to claim 5, further comprising: the first return spring is used for realizing the return of the pawl linkage block after being triggered.
7. A frame type circuit breaker with self-locking function according to claim 2 or 5, wherein said action unit comprises:
the first linkage shaft is provided with a traction piece, and the traction piece is connected with the conductive movable contact block so as to pull the conductive movable contact block to generate a swinging action;
the second linkage block is coupled with the first linkage block by a shaft;
the third linkage block is coupled with the second linkage block in a shaft way, and the first end of the third linkage block is connected with the traction piece;
the main reset spring is connected with the first end of the third linkage block and is used for realizing the reset of the third linkage block;
the fourth linkage block is in shaft connection with the first linkage block and is provided with a first abutting end and a second abutting end, and the first abutting end abuts against a limiting rod;
the fifth linkage block is coupled in the shell in a shaft way, is abutted against the first abutting end and is provided with a circuit breaking triggering end;
and the triggering rotating block is provided with a first abutting part and a pressing part, the first abutting part abuts against the fifth linkage block, and the pressing part is used for receiving a pressing action caused by an external circuit-breaking command.
8. A frame type circuit breaker with self-locking function as claimed in claim 7, further comprising a second return spring for pivoting said fifth link block when said trigger block is pressed.
9. A frame type circuit breaker with self-locking function as claimed in claim 1, wherein the user input unit comprises a keypad.
10. A frame type circuit breaker with self-locking function as claimed in claim 1, wherein the authentication processing unit is a microprocessor.
11. A frame type circuit breaker with self-locking function according to claim 7, wherein the locking action unit comprises:
a first linkage member rotating about an axis;
the first end of the first linkage rod is connected with the second end of the first linkage piece;
the second end of the first linkage piece drives the rotating shaft to rotate;
the trigger part is sleeved on the rotating shaft, corresponds to the pressing part on the trigger rotating block and enables the frame type circuit breaker body to generate a circuit breaking action by pressing the pressing part;
the armature end of the electromagnet corresponds to the first end of the first linkage piece;
and the action control circuit receives the control signal so as to control the electrifying state of the electromagnet coil.
12. A frame type circuit breaker with self-locking function according to claim 11, wherein said motion control circuit comprises:
the fourth triode and the seventh triode are connected with two output ends of the microprocessor;
the base electrode of the eighth triode is connected with the collector electrode of the fourth triode;
the base electrode of the sixth triode is connected with the emitting electrode of the fourth triode;
a base electrode of the fifth triode is connected with an emitting electrode of the seventh triode, an emitting electrode of the sixth triode is connected with an emitting electrode of the fifth triode, and a collector electrode of the fifth triode is connected with an emitting electrode of the eighth triode;
the emitter of the ninth triode is connected with the collector of the sixth triode, and the collector of the ninth triode is connected with the collector of the eighth triode;
the ninth diode is arranged between the base electrode of the fourth triode and the emitter electrode of the sixth triode;
the twelfth diode is arranged between the base electrode of the seventh triode and the emitter electrode of the fifth triode;
and the output end and the input end of the coil of the electromagnet are respectively connected between the emitter of the fifth triode and the emitter of the sixth triode.
13. A frame type circuit breaker with self-locking function according to claim 11, further comprising a secondary self-locking mechanism including:
the ring is fixedly connected with the rotating shaft, and the inner side of the ring is provided with a self-locking notch;
a self-locking housing having a notch therein;
and the self-locking block is internally provided with a third return spring and is provided with a self-locking end which is propped against the inner ring of the circular ring.
14. A frame type circuit breaker with self-locking function according to claim 4, wherein said input part is a handle and/or a motor.
15. A frame type breaker with self-locking function as claimed in claim 9, wherein the user input unit further comprises a wireless transceiver circuit and a remote controller, the wireless transceiver circuit is connected to the authentication processing unit for receiving the password input of the remote controller in a wireless manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040210U CN202142465U (en) | 2011-01-30 | 2011-01-30 | Frame-type breaker having self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120040210U CN202142465U (en) | 2011-01-30 | 2011-01-30 | Frame-type breaker having self-locking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202142465U true CN202142465U (en) | 2012-02-08 |
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ID=45553511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120040210U Expired - Lifetime CN202142465U (en) | 2011-01-30 | 2011-01-30 | Frame-type breaker having self-locking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202142465U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169779A (en) * | 2011-01-30 | 2011-08-31 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN107799366A (en) * | 2017-12-01 | 2018-03-13 | 江苏创能电器有限公司 | A kind of omnipotent breaker |
-
2011
- 2011-01-30 CN CN201120040210U patent/CN202142465U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169779A (en) * | 2011-01-30 | 2011-08-31 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN102169779B (en) * | 2011-01-30 | 2014-06-11 | 湖北盛佳电器设备有限公司 | Frame type circuit breaker with self-locking function |
| CN107799366A (en) * | 2017-12-01 | 2018-03-13 | 江苏创能电器有限公司 | A kind of omnipotent breaker |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120208 Effective date of abandoning: 20140611 |
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| RGAV | Abandon patent right to avoid regrant |