CN101174526A - Leakage disengaging deivce of earth leakage breaker - Google Patents
Leakage disengaging deivce of earth leakage breaker Download PDFInfo
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- CN101174526A CN101174526A CNA2007101670547A CN200710167054A CN101174526A CN 101174526 A CN101174526 A CN 101174526A CN A2007101670547 A CNA2007101670547 A CN A2007101670547A CN 200710167054 A CN200710167054 A CN 200710167054A CN 101174526 A CN101174526 A CN 101174526A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/18—Means for extinguishing or suppressing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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Abstract
The invention relates to a creepage disengaging device for a creepage breaker, with a subject of improving the connection and configuration structure of the components of the creepage disengaging device loaded in the creepage breaker so as to achieve a small size and the compactness. The solution scheme is as below: in the creepage disengaging device which is provided with a creepage tripping coil (8), a tripping actuator (9) connected with a plunger of the creepage tripping coil and an upward bounced creepage display button (10), the creepage tripping coil is a magnetism maintaining electromagnet which has a magnetic yoke (8a) provided with a permanent magnet (8b) and a degaussing coil (8c). The electromagnet is arranged on an ordinate axis and has one side at the upper part connected with the creepage display button through the plunger of the creepage tripping coil. Besides, the tripping actuator which moves upwards and downwards under a force exerted upwards by a tripping spring is arranged on one side of the lower part of the tripping coil.
Description
Technical field
The present invention relates to carry the package assembly of the disengaging deivce of earth leakage on the residual current circuit breaker in being applicable to the low-voltage distribution system.
Background technology
The circuit table of above-mentioned residual current circuit breaker is shown among Fig. 7.In the figure, symbol 1 expression main circuit; 2 expression main circuit contacts; 3 expressions are with the zero phase current transformer of main circuit 1 as Primary Conductor; 4 expression electric-leakage detection circuits are used for detecting the earth current that flows through main circuit 1 according to the secondary output of zero phase current transformer; The switching mechanism of 5 expression main circuit contacts 2; 6 expression opening and closing operations handles; 7 represent disengaging deivce of earth leakage, accept the output signal of electric-leakage detection circuit 4, and switching mechanism 5 is disconnected; 8 expression breaking coils; 9 expression actuators are accepted the action of breaking coil 8, and switching mechanism 5 is disconnected; 10 expression electric leakage the Show Buttons are used for showing electric leakage dropout action; The body shell of 11 expression circuit breakers, its outside drawing is illustrated among Fig. 8.
The existing package assembly of above-mentioned disengaging deivce of earth leakage 7 (for example with reference to patent documentation 1) is illustrated among Fig. 9.Promptly, existing disengaging deivce of earth leakage 7 is the leakage tripping coils 8 with horizontal shaft type, the trip actuator 9 of the horizontal slidingtype that is connected with this breaking coil 8, and electric leakage the Show Button 10 of going up the bullet formula is assembled on the assembling pedestal 12, become the module units structure, with each function parts shown in Figure 7, carry in body shell 11.
In Fig. 9, breaking coil 8 is to engage by yoke 8a, permanent magnet 8b, degaussing coil 8c and with not shown movable core and constitute the magnetism holding type electromagnet from the plunger axis 8d that yoke 8a draws.On the other hand, trip actuator 9 configurations are arranged in the side of breaking coil 8, be directed to supporting for horizontally slipping, push-pads 9a is outstanding towards the side from the middle part of this sliding panel, make above-mentioned push-pads 9a relative, make push-pads 9a pushing plunger axis 8d by tripping operation spring (collapse coil spring) 13 with the top of above-mentioned plunger axis 8d.In addition, be provided with projection 9b at the right-hand member of trip actuator 9, relative with the tripping operation cross bar 14 of circuit breaker.Electric leakage the Show Button 10 and not shown display driver spring, cam mechanism combination are connected with trip actuator 9.
The action of the disengaging deivce of earth leakage 7 of said structure is documented in patent documentation 1, if reset operation by handle 6 (with reference to Fig. 7), make trip actuator 9 be returned to the diagram reset position, then the movable core of breaking coil 8 is subjected to the magnetic force of permanent magnet 8b, make plunger axis 8d towards right-hand outstanding, trip actuator 9,10 constraints of electric leakage the Show Button are remained on going-back position shown in Figure 9.Under this state, tripping operation spring 13 is compressed, and makes spring force save up strength.
On the other hand, if distribution system generation ground fault, electric-leakage detection circuit 4 (with reference to Fig. 7) detects and learns, then accepts the output signal from electric- leakage detection circuit 4,8c flows through exciting current at degaussing coil, so that make the magnetic force degaussing of permanent magnet 8b at breaking coil 8.Like this, tripping operation spring shown in Figure 9 13 discharges the spring force that saves up strength, and trip actuator 9 is driven towards the diagram direction of arrow (left to), and its projection 9b bump tripping operation cross bar 14 makes switching mechanism (with reference to Fig. 7) tripping operation, and main circuit contact 2 is disconnected.In addition, the Show Button 10 that leaks electricity is simultaneously done to go up springing and done, and is outstanding to foreign side from the expression window (with reference to Fig. 8) at body shell 11 openings.
Patent documentation 1: Japanese kokai publication hei 3-219523 communique (Fig. 1, Fig. 5).
The residual current circuit breaker of being produced in Japan now generally is overcurrent protection function and ground protection functional part to be assembled in the body shell of monomer structure together constitute, in addition each functional part is all carried with the body shell of Inturruptor for sub-line similar shape size in become main flow.Recently, with corresponding to the unification of international standard (IEC), in residual current circuit breaker, also append parts such as carrying the proof voltage Test Switchboard, therefore, in order to carry a plurality of parts in the body shell of being limited in overall dimension, constituting each parts as far as possible, the structure of small compact becomes important topic.
If rethink existing electric leakage trip unit shown in Figure 9 from above-mentioned viewpoint, then for breaking coil 8, trip actuator 9, electric leakage the Show Button 10 each parts are assembled in the structure of assembling on the pedestal 12 as individual components, and breaking coil 8 and trip actuator 9 are disposed along X direction, because electric leakage the Show Button 10 of last bullet formula is along the y direction configuration etc., component configuration towards difference, be difficult to make device integral body to compile compactly, trip gear maximizes, and it is very difficult effectively to utilize the space to take in the body shell of circuit breaker.
Summary of the invention
The present invention puts forward for addressing the above problem, and its purpose is, provides a kind of ingenious connection configuration component parts so that the disengaging deivce of earth leakage of the residual current circuit breaker of the improvement of realization small compactization.
In order to achieve the above object, the present invention proposes following technical scheme.
(1) a kind of disengaging deivce of earth leakage of residual current circuit breaker, it comprises leakage tripping coil, the trip actuator that is connected with the plunger of this leakage tripping coil and electric leakage the Show Button of last bullet formula, this disengaging deivce of earth leakage carries in the breaker body housing, when detecting electric leakage, the main circuit contact is produced disconnect action, and show electric leakage dropout action, it is characterized in that:
Above-mentioned leakage tripping coil is the magnetism holding type electromagnet that is provided with permanent magnet and degaussing coil in yoke, this electromagnet longitudinal axis configuration, one side connects electric leakage the Show Button to plunger by the leakage tripping coil on top, and, to be configured in bottom one side of breaking coil by the formula that the moves up and down trip actuator that the tripping operation spring upwards applies active force, be connected with above-mentioned plunger.
(2) in the disengaging deivce of earth leakage of (1) described residual current circuit breaker, it is characterized in that:
Trip actuator is provided with the axis of guide longitudinally, be assembled with the tripping operation spring on the axle of this axis of guide, and this axis of guide is arranged on the sidepiece of leakage tripping coil, is directed to supporting for moving up and down.
(3) in the disengaging deivce of earth leakage of (1) or (2) described residual current circuit breaker, it is characterized in that:
The plunger of leakage tripping coil is made of movable core and the plunger axis that combines with this movable core, and constitutes in the upper end of this plunger axis and be connected with electric leakage the Show Button, and the lower end crimping trip actuator of plunger axis,
Under the reset mode of trip actuator, the permanent magnet of breaking coil attracts to remain on down position with movable core, trip actuator and the constraint of electric leakage the Show Button are remained on position of readiness, when electric leakage takes place when, by the exciting current that flows in the degaussing coil, eliminate permanent magnet magnetic force, discharge constraint trip actuator and electric leakage the Show Button.
(4) in the disengaging deivce of earth leakage of (1) or (2) described residual current circuit breaker, it is characterized in that:
The plunger of leakage tripping coil is made of the plunger axis that tubular movable core and pine are embedded in this iron core, and be connected with the electric leakage the Show Button that is applied in elastic acting force upwards in the upper end of this plunger axis, the lower end and the trip actuator of plunger axis are chimeric, and by and the bolt lock mechanism of the action of above-mentioned movable core interlock will interlock between movable core and the trip actuator
Under the reset mode of trip actuator, the permanent magnet of breaking coil attracts to remain on lifting position with movable core, by above-mentioned bolt lock mechanism trip actuator and the constraint of electric leakage the Show Button are remained on going-back position, when electric leakage takes place when, the movable core that is subjected to the magnetic force of exciting current mobile in the degaussing coil and descends discharges above-mentioned bolt lock mechanism, thereby discharges the constraint to trip actuator and electric leakage the Show Button.
(5) in the disengaging deivce of earth leakage of (4) described residual current circuit breaker, it is characterized in that:
Bolt lock mechanism constitutes the recovery spring that this bolt lock mechanism applies the pushing active force by the trip actuator card being ended at the breech lock pawl of reset position with towards the chimeric end difference that is formed on the trip actuator, and is formed on inclination cam part and relative configuration of flange part periphery in the front end formation of the movable core of breaking coil on the above-mentioned breech lock pawl.
According to said structure, the relative leakage tripping coil that on y direction, disposes, component configuration towards unanimity, electric leakage the Show Button of bullet formula is gone up in side assembling at an upper portion thereof, move up and down the trip actuator of formula in the assembling of its underpart side, make the one body unitization, can realize the small compactization of tripgear.
In addition, structure according to technique scheme (4), to interlock between the movable core of leakage tripping coil and the trip actuator by bolt lock mechanism, the trip actuator card that will be saved up strength by the tripping operation spring with bolt lock mechanism ends at reset position, like this, the load force shared of leakage tripping coil (magnetism holding type electromagnet) diminishes.Therefore, as long as the permanent magnet of breaking coil has the magnetic confining force that only movable core is attracted at position of readiness, and as long as the magnetic force that degaussing coil requires also can guarantee to offset permanent magnet magnetic force, the magnetic force of latch mechanism just.Like this, can realize comprising the small compactization of the disengaging deivce of earth leakage integral body of breaking coil.
Description of drawings
Figure 1A～1C is the structure chart of the disengaging deivce of earth leakage that relates to of the embodiment of the invention 1, and wherein, Figure 1A represents the outside drawing under the reset mode, and Figure 1B is the longitudinal cross-section side view of Figure 1A, and Fig. 1 C is the longitudinal cross-section back view of Figure 1A.
The electric leakage operate condition of the disengaging deivce of earth leakage shown in Fig. 2 A～2B presentation graphs 1A-1C, wherein, Fig. 2 A is stereoscopic figure, Fig. 2 B is the longitudinal cross-section side view.
Fig. 3 A～3B is the structure chart of the disengaging deivce of earth leakage that relates to of the embodiment of the invention 2, and wherein, Fig. 3 A represents the outside drawing under the reset mode, and Fig. 3 B is the longitudinal cross-section side view of Fig. 3 A.
Fig. 4 A～4B is the structure key diagram of the bolt lock mechanism among Fig. 3 A～3B, and wherein, Fig. 4 A is the side view of disengaging deivce of earth leakage, and Fig. 4 B is the amplification cross-sectional view of the bolt lock mechanism portion of Fig. 4 A.
Fig. 5 A～5B represents the figure of the electric leakage operate condition of the disengaging deivce of earth leakage corresponding with Fig. 3 A～3B, and wherein, Fig. 5 A is an outside drawing, and Fig. 5 B is the longitudinal cross-section side view of Fig. 5 A.
Fig. 6 A～6B is the action specification figure of the bolt lock mechanism corresponding with Fig. 5 A～5B, and wherein, Fig. 6 A is the side view of disengaging deivce of earth leakage, and Fig. 6 B is the amplification cross-sectional view of the bolt lock mechanism portion of Fig. 6 A.
Fig. 7 is the circuit diagram as the residual current circuit breaker of the invention process object.
Fig. 8 is the stereoscopic figure of the residual current circuit breaker corresponding with Fig. 7.
Fig. 9 is the stereoscopic figure that the structure of the existing disengaging deivce of earth leakage in the residual current circuit breaker of Fig. 8 is carried in expression.
Symbol description
The 7-disengaging deivce of earth leakage, 8-leakage tripping coil, 8a-yoke, the 8b-permanent magnet, 8c-degaussing coil, 8e-movable core, the 8e-1-flange part, 8f, 8g, 8i-plunger axis, 9-trip actuator, the 9a-operating portion, the chimeric end difference of 9a-1-, the 9b-axis of guide, the 10-the Show Button that leaks electricity, the 10a-driving spring, the body shell of 11-circuit breaker, the assembling pedestal of 12-disengaging deivce of earth leakage, the 13-spring that trips, the 14-cross bar that trips, the 15-control lever that resets, 16-bolt lock mechanism, 16a-breech lock pawl, 16a-1-inclination cam part, 16b-recovers spring.
Embodiment
Below with reference to Figure 1A～Fig. 6 B illustrated embodiment, embodiments of the present invention are described.In the figure of embodiment, be marked with same-sign with Fig. 9 corresponding components.In following examples, though various qualifications have been done in inscape, kind, combination, shape, relative configuration etc.,, these only exemplify, and the present invention is not limited thereto.
With reference to Figure 1A～1C and Fig. 2 A～2B technical solution of the present invention (1)-structure of the embodiment that (3) relate to, action are described.
The disengaging deivce of earth leakage of illustrated embodiment, with leakage tripping coil 8 is core component, assemble the cellular construction of electric leakage the Show Button 10 formations of trip actuator 9, last bullet formula thereon, basic identical with prior art constructions shown in Figure 9, but, for the small compactization of implement device integral body, each parts is each other by following connection configuration.
At first, leakage tripping coil 8 is that the interior side at the yoke 8a that is made of contrary U font pin sheet and egative film disposes permanent magnet 8b, is wound on degaussing coil 8c on the roll and the magnetism holding type electromagnet of movable core 8e and fixed iron core 8h, relative movable core 8e, permanent magnet 8b disposes as the longitudinal axis according to the mode that is arranged in degaussing coil 8c downside, carries on assembling pedestal 12.In addition, movable core 8e is as Cylindorical rod, and the bottom is combined with plunger axis 8f, the 8g of non magnetic material thereon, constitutes plunger.8j is the recovery spring (collapse coil spring) that is configured on the plunger axis 8g, with weak spring force plunger is applied active force down.
In addition, above-mentioned relatively breaking coil 8, side and driving spring (collapse coil spring) 10a combining and configuring has electric leakage the Show Button 10 of last bullet formula at an upper portion thereof, and electric leakage the Show Button 10 of lid shape is connected with the upper end of above-mentioned plunger axis 8f is chimeric.
On the other hand, trip actuator 9 (resin forming product) is made of the axis of guide 9b of the operating portion 9a of the lower side that is configured in breaking coil 8 and the extension from this operating portion 9a towards the top, this axis of guide 9b is arranged on the side of breaking coil 8, at assembling pedestal 12 by guided bearing movably up and down.In addition, be provided with flange part 9b-1, tripping operation spring (collapse coil spring) 13 is installed between the egative film of above-mentioned flange part 9b-1 and yoke 8a in the middle part of axis of guide 9b, trip actuator 9 is spring energized towards the top.Under the diagram assembled state, above the front end crimping operation 9a of portion of above-mentioned plunger axis 8g, in this position, the hook portion of bottom front end that is formed on operating portion 9a is relative with the cross bar 14 that trips.
On the operating portion 9a of trip actuator 9, the control lever 15 that resets is installed, under this disengaging deivce of earth leakage carries state in the body shell 11 (with reference to Fig. 8) of circuit breaker, the above-mentioned control lever 15 that resets is connected with the operating grip 6 (with reference to Fig. 8) of circuit breaker, when reset of breaker, since lever operated, make trip actuator 9 resistance tripping operation springs 13 push the below to by the control lever 15 that resets.
As mentioned above, leakage tripping coil 8 is disposed as vertical, electric leakage the Show Button 10 of bullet formula is gone up in side assembling at an upper portion thereof, move up and down the trip actuator 9 of formula in the assembling of its underpart side, the one blocking can make the overall structure of disengaging deivce of earth leakage be configured than existing apparatus shown in Figure 9 small compact more thus.
Below, the action of the disengaging deivce of earth leakage 7 of said structure is described.At first, under reset mode shown in Figure 1A～1C, trip actuator 9 position of readiness that is pressed is in this position, magnetic attraction movable core 8e with the permanent magnet 8b of breaking coil 8 remains on fixed iron core 8h, and trip actuator 9 and 10 constraints of electric leakage the Show Button are remained on position of readiness.Under this state, tripping operation spring 13 is compressed and saves up strength.
On the other hand, under the actual user mode of residual current circuit breaker, detect the earth current that flows through main circuit 1 (with reference to Fig. 7) at zero phase current transformer 3, electric-leakage detection circuit 4, if output signal according to electric-leakage detection circuit 4, flow through exciting current in the degaussing coil 8c of the breaking coil 8 of disengaging deivce of earth leakage 7, then the magnetic field that produced of degaussing coil 8c is towards the magnetic force direction degaussing of eliminating permanent magnet 8b.Like this, so far movable core 8e is attracted remain on the magnetic confining force forfeiture of fixed iron core 8h, shown in Fig. 2 A, 2B, trip actuator 9 be subjected to the tripping retracting spring power of spring 13, move towards the top, the front end hook portion bump tripping operation cross bar 14 of its operating portion 9a makes the tripping operation of circuit breaker switching mechanism, disconnects main circuit contact 2 (with reference to Fig. 7).Simultaneously, the active force that electric leakage the Show Button 10 applies because of driving spring 10a produces goes up the springing work, outstanding from the cover cap (with reference to Fig. 8) of breaker body housing 11, the action of expression leakage tripping.After the tripping operation action of residual current circuit breaker, if operation makes handle 6 (with reference to Fig. 8) reset, then trip actuator 9 drops to position shown in Figure 1A～1C, and simultaneously, the movable core 8e of breaking coil 8 is attracted by permanent magnet 8b.Like this, trip actuator 9 and electric leakage the Show Button 10 position of readiness that remain on Figure 1A～1C in bond.
Below, with reference to the improvement embodiment corresponding that Fig. 3 A～Fig. 6 B explanation further develops the structure of the foregoing description 1 with technical solution of the present invention (4)-(5).
In the present embodiment, the configuration of leakage tripping coil 8, trip actuator 9, electric leakage the Show Button 10 is identical with the foregoing description 1, still, and leakage tripping coil 8, and leakage tripping coil 8 is different with the syndeton of trip actuator 9.
Promptly, combination has the breaking coil 8 of permanent magnet 8b, degaussing coil 8c, movable core 8e, fixed iron core 8h on yoke 8a, the position of its permanent magnet 8b and degaussing coil 8c and embodiment 1 are (with reference to Figure 1A～1C) opposite, permanent magnet 8b is configured in the upside of degaussing coil 8c, carries on assembling pedestal 12.In addition, the plunger axis 8i pine of non magnetic material is embedded among the columnar movable core 8e, constitutes the plunger of breaking coil.And, to this plunger axis 8i, the electric leakage the Show Button 10 that is applied the lid shape of active force by driving spring 10a is connected with its upper end side is chimeric, and the lower end of plunger axis 8i then intercalation connects by the flange part 8i-1 that is formed on the plunger axis front end in the operating portion 9a of trip actuator 9.The axis of guide 9b that extends towards the top from the operating portion 9a of trip actuator 9 is arranged on the rear side of breaking coil 8, and intercalation is directed to supporting for sliding up and down at yoke 8a.
In the present embodiment, newly append breech lock (latch) mechanism 16 be housed, by this bolt lock mechanism 16 with interlocking between the movable core 8e of breaking coil 8 and the trip actuator 9.This bolt lock mechanism 16 plays a part under the reset mode of disengaging deivce of earth leakage and will only remain on position of readiness by trip actuator 9 cards that tripping operation spring 13 applies active force.Its structure is made of helicoid breech lock pawl 16a and recovery spring (leaf spring) 16b shown in Fig. 4 A, 4B, and breech lock pawl 16a is assembling on the pedestal 12 by hinge 16c pivotal support.In addition, on breech lock pawl 16a, be provided with inclination cam part 16a-1, under the diagram assembled state, make that the periphery of flange part 8e-1 of the movable core 8e lower end be formed on breaking coil 8 is relative with the cam surface of inclination cam part 16a-1.Moreover, relative with above-mentioned breech lock pawl 16a, be formed with chimeric end difference 9a-1 at the position, upper end of the operating portion 9a of trip actuator 9.
Below, the action of the disengaging deivce of earth leakage of said structure is described.At first, under the reset mode of trip actuator 9 shown in Fig. 3 A～Fig. 4 B, the movable core 8e of breaking coil 8 is attracted by the magnetic force of permanent magnet 8b and remains on lifting position.In addition, about trip actuator 9 (trip actuator is depressed in the below), the breech lock pawl 16a of above-mentioned bolt lock mechanism 16 is subjected to recovering the chimeric end difference 9a-1 chimeric (chimeric amount δ) of the operating portion 9a of active force that spring 16b applies and trip actuator 9, and trip actuator 9 constraints are remained on this reset position.Have again, electric leakage the Show Button 10 by with the plunger axis 8i position of readiness that remains in bond of the chimeric breaking coil 8 of the operating portion 9a of trip actuator 9.
From this state, if circuit breaker detects electric leakage, the exciting current that flows in the degaussing coil 8c of breaking coil 8 is then eliminated the magnetic force of permanent magnet 8b, and movable core 8e is attracted to the below.Then, if movable core 8e descend to move, then shown in Fig. 6 A, 6B, the inclined cam surface of inclination cam part 16a-1 that is formed on the breech lock pawl 16a of the flange part 8e-1 of movable core 8e lower end and bolt lock mechanism 16 knocks, and 16a pushes foreign side to the breech lock pawl.Like this, breech lock pawl 16a is a fulcrum with hinge 16c, and by revolution clockwise, the chimeric end difference 9a-1 disengaging with in the operating portion 9a of trip actuator 9 formation discharges the constraint of trip actuator.As a result, trip actuator 9 be subjected to the tripping spring force of spring 13 rises, and shown in Fig. 5 A, 5B, bump tripping operation cross bar 14 makes the tripping operation of circuit breaker switching mechanism, disconnects the main circuit contact.In addition, follow the rising of trip actuator 9 to move, the constraint of electric leakage the Show Button 10 that the plunger axis 8i of breaking coil 8 causes is disengaged.As a result, electric leakage the Show Button 10 is activated active force that spring 10a applies and produces and go up springing and do, and electric leakage the Show Button 10 is outstanding from the cover cap of breaker body housing 11 shown in Figure 8, expression electric leakage action.
After the tripping operation action of residual current circuit breaker, if operating grip resets, trip actuator 9 position of Fig. 3 A, 3B that is pressed then, simultaneously, the chimeric end difference 9a-1 of the breech lock pawl 16a of bolt lock mechanism 16 and trip actuator 9 is chimeric, and trip actuator 9 and electric leakage the Show Button 10 are strapped in position of readiness.
As can be known, according to present embodiment, under reset mode, the spring force that saves up strength that acts on the tripping operation spring 13 on the trip actuator 9 is blocked by bolt lock mechanism 16 from above-mentioned action specification, and this spring force can not be applied on the breaking coil 8 as load force.In addition, as long as the permanent magnet 8b of breaking coil 8 has the magnetic force that movable core 8e is attracted to remain on lifting position, can adopt small-sized permanent magnet.Have, about degaussing coil 8c, as long as also guarantee to eliminate the magnetic force of permanent magnet 8b, make movable core 8e be attracted to the below, the magnetic force of the breech lock pawl 16a of latch mechanism 16 just.Like this, compare, can make 8 miniaturizations of leakage tripping coil further to constitute to small compact the disengaging deivce of earth leakage that comprises this breaking coil 8 with the breaking coil of the foregoing description 1.
Above with reference to description of drawings embodiments of the invention, but the present invention is not limited to the foregoing description.Can do all changes in the technology of the present invention thought range, they all belong to protection scope of the present invention.
Claims (5)
1. the disengaging deivce of earth leakage of a residual current circuit breaker, it comprises leakage tripping coil, the trip actuator that is connected with the plunger of this leakage tripping coil and electric leakage the Show Button of last bullet formula, this disengaging deivce of earth leakage carries in the breaker body housing, when detecting electric leakage, the main circuit contact is produced disconnect action, and show electric leakage dropout action, it is characterized in that:
Described leakage tripping coil is the magnetism holding type electromagnet that is provided with permanent magnet and degaussing coil in yoke, this electromagnet longitudinal axis configuration, one side connects electric leakage the Show Button to plunger by the leakage tripping coil on top, and, to be configured in bottom one side of breaking coil by the formula that the moves up and down trip actuator that the tripping operation spring upwards applies active force, be connected with described plunger.
2. the disengaging deivce of earth leakage of residual current circuit breaker as claimed in claim 1 is characterized in that:
Be provided with the axis of guide longitudinally at trip actuator, on the axle of this axis of guide, be assembled with the tripping operation spring, and this axis of guide be arranged on the sidepiece of leakage tripping coil, be directed to supporting for moving up and down.
3. the disengaging deivce of earth leakage of residual current circuit breaker as claimed in claim 1 or 2 is characterized in that:
The plunger of leakage tripping coil is made of movable core and the plunger axis that combines with this movable core, and constitutes in the upper end of this plunger axis and be connected with electric leakage the Show Button, and the lower end crimping trip actuator of plunger axis,
Under the reset mode of trip actuator, the permanent magnet of breaking coil attracts to remain on down position with movable core, trip actuator and the constraint of electric leakage the Show Button are remained on position of readiness, when electric leakage takes place when, by the exciting current that flows in the degaussing coil, eliminate permanent magnet magnetic force, discharge constraint trip actuator and electric leakage the Show Button.
4. the disengaging deivce of earth leakage of residual current circuit breaker as claimed in claim 1 or 2 is characterized in that:
The plunger of leakage tripping coil is made of the movable core and the loose plunger axis that is embedded in this iron core of tubular, and be connected with the electric leakage the Show Button that is applied in elastic acting force upwards in the upper end of this plunger axis, the lower end and the trip actuator of plunger axis are chimeric, and by and the bolt lock mechanism of the action of described movable core interlock will interlock between movable core and the trip actuator
Under the reset mode of trip actuator, the permanent magnet of breaking coil attracts to remain on lifting position with movable core, by described bolt lock mechanism trip actuator and the constraint of electric leakage the Show Button are remained on going-back position, when electric leakage takes place when, the movable core that is subjected to the magnetic force of exciting current mobile in the degaussing coil and descends discharges described bolt lock mechanism, thereby discharges the constraint to trip actuator and electric leakage the Show Button.
5. the disengaging deivce of earth leakage of residual current circuit breaker as claimed in claim 4 is characterized in that:
Bolt lock mechanism constitutes the recovery spring that this breech lock pawl applies the pushing active force by the trip actuator card being ended at the breech lock pawl of reset position with towards the chimeric end difference that is formed on the trip actuator, and it is formed on inclination cam part and relative configuration of flange part periphery in the front end formation of the movable core of breaking coil on the described breech lock pawl.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006296068 | 2006-10-31 | ||
| JP2006296068A JP4967602B2 (en) | 2006-10-31 | 2006-10-31 | Earth leakage trip device for earth leakage breaker |
| JP2006-296068 | 2006-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101174526A true CN101174526A (en) | 2008-05-07 |
| CN101174526B CN101174526B (en) | 2010-10-13 |
Family
ID=39422940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101670547A Active CN101174526B (en) | 2006-10-31 | 2007-10-31 | Leakage disengaging deivce of earth leakage breaker |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4967602B2 (en) |
| KR (1) | KR100925099B1 (en) |
| CN (1) | CN101174526B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908447A (en) * | 2009-06-08 | 2010-12-08 | 三菱电机株式会社 | Circuit-breaker |
| CN102543598A (en) * | 2010-12-27 | 2012-07-04 | 三菱电机株式会社 | Circuit breaker |
| CN102067258B (en) * | 2008-06-19 | 2013-10-16 | Abb公司 | Tripping assembly for switching device |
| CN103839735A (en) * | 2013-12-23 | 2014-06-04 | 上海良信电器股份有限公司 | Magnetic circuit structure of magnetic trip |
| CN104078256A (en) * | 2014-07-16 | 2014-10-01 | 无锡市凯旋电机有限公司 | Mechanism interlocking device for breaker |
| CN106098488A (en) * | 2015-04-30 | 2016-11-09 | 现代重工业株式会社 | Chopper |
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| KR101153117B1 (en) | 2011-02-25 | 2012-06-04 | 엘에스산전 주식회사 | Circuit breaker |
| KR20140033814A (en) * | 2012-09-10 | 2014-03-19 | 엘에스산전 주식회사 | Electromagnetic switching device |
| CN103681143A (en) * | 2013-09-30 | 2014-03-26 | 长城电器集团有限公司 | Electromagnetic device of breaker |
| US9466451B2 (en) * | 2013-12-12 | 2016-10-11 | Eaton Corporation | Flux shunt trip actuator interface and breaker reset mechanism for circuit breaker |
| CN106298380B (en) * | 2015-05-26 | 2019-10-18 | 施耐德电器工业公司 | Breaker with instruction leakage function |
| CN105118748A (en) * | 2015-09-08 | 2015-12-02 | 德力西电气有限公司 | Electromagnetic mechanism of miniature circuit breaker |
| CN110726953B (en) * | 2019-11-30 | 2024-06-14 | 天航长鹰(江苏)科技有限公司 | Conduction testing device of leakage protector |
| CN114388316B (en) * | 2021-12-24 | 2024-03-12 | 上海京硅智能技术有限公司 | Circuit breaker contact system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3146577B2 (en) * | 1991-12-27 | 2001-03-19 | 株式会社日立製作所 | Earth leakage breaker |
| JPH1040800A (en) * | 1996-07-23 | 1998-02-13 | Fuji Electric Co Ltd | Leakage display unit of leakage breaker |
| JP3920963B2 (en) | 1997-03-31 | 2007-05-30 | テンパール工業株式会社 | Earth leakage breaker with overcurrent protection function |
| JP3807042B2 (en) * | 1997-08-18 | 2006-08-09 | 富士電機機器制御株式会社 | Earth leakage breaker |
| JPH1167052A (en) * | 1997-08-18 | 1999-03-09 | Fuji Electric Co Ltd | Leakage display mechanism in earth leakage breaker |
| KR100357206B1 (en) * | 2000-11-13 | 2002-10-19 | 엘지산전 주식회사 | display for earth leakage circuit breaker |
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2006
- 2006-10-31 JP JP2006296068A patent/JP4967602B2/en active Active
-
2007
- 2007-10-04 KR KR1020070099719A patent/KR100925099B1/en active IP Right Grant
- 2007-10-31 CN CN2007101670547A patent/CN101174526B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067258B (en) * | 2008-06-19 | 2013-10-16 | Abb公司 | Tripping assembly for switching device |
| CN101908447A (en) * | 2009-06-08 | 2010-12-08 | 三菱电机株式会社 | Circuit-breaker |
| CN101908447B (en) * | 2009-06-08 | 2013-09-18 | 三菱电机株式会社 | Circuit breaker |
| CN102543598A (en) * | 2010-12-27 | 2012-07-04 | 三菱电机株式会社 | Circuit breaker |
| CN102543598B (en) * | 2010-12-27 | 2015-11-25 | 三菱电机株式会社 | Circuit-breaker |
| CN103839735A (en) * | 2013-12-23 | 2014-06-04 | 上海良信电器股份有限公司 | Magnetic circuit structure of magnetic trip |
| CN103839735B (en) * | 2013-12-23 | 2016-08-17 | 上海良信电器股份有限公司 | A kind of magnetictrip magnetic structure |
| CN104078256A (en) * | 2014-07-16 | 2014-10-01 | 无锡市凯旋电机有限公司 | Mechanism interlocking device for breaker |
| CN104078256B (en) * | 2014-07-16 | 2016-01-06 | 无锡市凯旋电机有限公司 | Circuit breaker mechanism's interlock |
| CN106098488A (en) * | 2015-04-30 | 2016-11-09 | 现代重工业株式会社 | Chopper |
| CN106098488B (en) * | 2015-04-30 | 2019-04-05 | 现代电力与能源系统株式会社 | Breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008112691A (en) | 2008-05-15 |
| KR20080039219A (en) | 2008-05-07 |
| KR100925099B1 (en) | 2009-11-05 |
| JP4967602B2 (en) | 2012-07-04 |
| CN101174526B (en) | 2010-10-13 |
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Owner name: FUJI ELECTRIC MACHINE SYSTEM CO., LTD. Free format text: FORMER OWNER: FUJI ELECTRIC ASSETS MANAGEMENT CO., LTD. Effective date: 20090515 Owner name: FUJI ELECTRIC ASSETS MANAGEMENT CO., LTD. Free format text: FORMER OWNER: FUJI ELECTRIC MACHINE SYSTEM CO., LTD. Effective date: 20090515 |
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Address after: Saitama Prefecture, Japan Patentee after: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. Address before: Tokyo, Japan Patentee before: FUJI ELECTRIC FA COMPONENTS & SYSTEMS Co.,Ltd. |