CN105304425B - A kind of safety ground stoppage circuit breaker and its control method - Google Patents
A kind of safety ground stoppage circuit breaker and its control method Download PDFInfo
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- CN105304425B CN105304425B CN201510676381.XA CN201510676381A CN105304425B CN 105304425 B CN105304425 B CN 105304425B CN 201510676381 A CN201510676381 A CN 201510676381A CN 105304425 B CN105304425 B CN 105304425B
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- misconnection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
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Abstract
A kind of safety ground stoppage circuit breaker and its control method; breaker includes base, upper lid, support resetting-mechanism, electromagnetic release mechanism, mistake proofing connection mechanism, contact assembly, grounding assembly, power input connection component, output connection component, pcb board and the breaker circuit being arranged on the pcb board, and the breaker circuit includes power circuit, electric leakage grounded inspection circuit, signal amplification shaping circuit, single chip machine controlling circuit, power detecting and working indicating, tripping mechanism control circuit and false wiring protection circuit；Mistake proofing connection mechanism includes anti-misconnection electromagnet and is arranged on the position limiting structure coordinated in release link with anti-misconnection electromagnet anti-misconnection rod nose；Method includes controlling the original state setting of above-mentioned breaker, correct wiring action control, false wiring action control and earth leakage protective.Present invention reduces breaker height, more more options are provided for ground-fault interrupter structure；Simple in construction, protection is reliable.
Description
Technical field
The present invention relates to a kind of ground-fault interrupter, the control method using the ground-fault interrupter is further related to.
Background technology
Ground-fault interrupter GFCI (Ground Fault Circuit Interrupter) is in the U.S., Canada etc.
North America, South American nations and regional wide variety of earth leakage protective product, are served safely to above-mentioned regional the people's lives and property
Good protective effect.Existing GFCI generally includes base, the upper lid provided with jack, electromagnetic release mechanism, contact assembly, connect
Ground component, power input connection component, output connection component etc., its circuit include power circuit, electric leakage grounded inspection circuit, letter
Number amplifying circuit, power indicating circuit and tripping mechanism control circuit, electromagnetic release mechanism are controlled by electric leakage grounded inspection circuit
And act.GFCI can by the jack of upper lid for load power supply is provided, can also be by exporting connection component to being connected thereto
Load supplying.The U.S. Patent Application Publication of Publication No. US2013021120A1, US2013038968A1 is above-mentioned existing
GFCI.
In order to solve the defect that GFCI lacks perfect reverse wiring detection function, applicant is in Application No.
" a kind of ground fault protection circuit and ground-fault interrupter " is disclosed in CN201410641061 Chinese patent application, should
The corresponding structure of reverse ground protection circuit of ground-fault interrupter as shown in Figure 2 and Figure 3, is broken to avoid installing earth fault
Because maloperation is by the reverse polarity connection of the power input terminals 7 of ground-fault interrupter during the device of road, so as to cause earth fault to be broken
The socket output polarity of road device reversely causes the hidden danger damaged to electrical equipment, and applicant is employed in ground-fault interrupter
Output end 9 sets the structure of negative-phase relay 401, using the negative-phase relay 401, when occurring maloperation by ground fault open circuit
During the reverse polarity connection of the power input terminals 7 of device, internal circuit will keep negative-phase relay 401 to turn on adhesive, keep socket
The stationary contact 404 of pole piece 403 is separated with the movable contact 402 of negative-phase relay 401, so that the output of ground-fault interrupter
End 9 disconnects and jack end, the electrical connection of input always, points out wiring error, prevents because of the hidden danger that wiring error is brought.
Although existing ground-fault interrupter solves shortage reverse wiring detection work(using above-mentioned negative-phase relay structure
The defect of energy, still, because the movable contact 402 of negative-phase relay 401 is adopted with the stationary contact 404 of socket pole piece 403 in structure
With fit structure up and down, cause the height dimension of whole ground-fault interrupter big, be unfavorable for reducing ground-fault interrupter
Overall volume.
The content of the invention
One of the technical problem to be solved in the present invention is, there is provided a kind of safety ground stoppage circuit breaker, to overcome existing connect
Earth fault breaker height dimension is big, is unfavorable for reducing the defect of ground-fault interrupter overall volume.
The second technical problem to be solved by the present invention is that there is provided a kind of safety ground stoppage circuit breaker control method, peace
All risk insurance hinders ground-fault interrupter action message, the hidden danger for preventing ground-fault interrupter from being brought by wiring error.
The present invention solves the technical scheme that one of its technical problem used：Construct a kind of safety ground failure to trip
Device, including base, upper lid, support resetting-mechanism, electromagnetic release mechanism, contact assembly, grounding assembly, power input connection group
Part, output connection component, pcb board and the breaker circuit that is arranged on the pcb board, the breaker circuit include power circuit,
Electric leakage grounded inspection circuit, signal amplification shaping circuit, single chip machine controlling circuit, power detecting and working indicating and dropout
Mechanism control circuit；
The support resetting-mechanism include be arranged on the pcb board reset cradle seat, be arranged on the reset cradle seat on
Cunning denier, support back-moving spring, reset key, back-moving spring, release link, reset sliding block and be arranged on reset sliding block in compression bullet
Spring, the conduction that the cunning denier includes transversely slip with breaker socket pole piece stationary contact and wiring output stationary contact coordinate is dynamic tactile
Point, the action inclined-plane with the driving inclined-plane cooperation of the reset sliding block, support back-moving spring are arranged on the cunning denier and reset cradle
Between seat, the sliding denier transverse shifting of driving；
The electromagnetic release mechanism includes the release electromagnet being arranged on the pcb board, and the release electromagnet includes threading off
Coil rack, the tripping coil being wrapped on the skeleton, be arranged on intraskeletal the dropout iron core and dropout iron core return-spring,
The dropout iron core limiting plate of the skeleton rear end is arranged on, the dropout iron core return-spring is located at the dropout iron core and the dropout iron core
Between limiting plate；Its front end can be with the support resetting-mechanism in the presence of the dropout iron core return-spring for the dropout iron core
The reset lock hole of release link and the linkage hole of reset sliding block, which coordinate, locks together the reset sliding block and the release link, at this
Under release electromagnet "on" position, the dropout iron core adsorbs the dropout iron core limiting plate pressure in the presence of the tripping coil magnetic field
Contract the dropout iron core return-spring, releases dropout rod nose to the release link and the locking for resetting sliding block；
The release link lower end can drive the reed switch being arranged on the pcb board to disconnect；
Characterized in that, the safety ground stoppage circuit breaker also includes mistake proofing connection mechanism, the mistake proofing connection mechanism includes mistake proofing
Electromagnet is connect, the anti-misconnection electromagnet includes anti-misconnection coil rack, the anti-misconnection coil being wrapped on the skeleton, is arranged on this
Intraskeletal anti-misconnection iron core and anti-misconnection iron core return-spring, it is arranged on the anti-misconnection iron core limiting plate of the skeleton rear end and sets
The stopping means in the anti-misconnection rod nose is put, the anti-misconnection iron core return-spring is located at the anti-misconnection iron core and the anti-misconnection
Between iron core limiting plate；The release link includes coordinating anti-by this in down direction with the stopping means of the anti-misconnection rod nose
The spacing position limiting structure of the stopping means of misconnection rod nose；The anti-misconnection iron core is stretched by anti-misconnection iron core return-spring effect
Go out, the stopping means of its front end coordinates spacing to release link progress with the release link position limiting structure；
The breaker circuit includes the false wiring protection circuit being connected with the single chip machine controlling circuit, and the mistake connects
Line protection circuit includes the anti-misconnection electromagnet, rectification circuit, one-way SCR and regulating resistor, the height electricity of the rectification circuit
Position input connects the civil power live wire incoming end of the breaker circuit, low potential output end and connects the anti-misconnection magnet spool
One end, the anti-misconnection magnet spool other end connects the anode of the one-way SCR, the minus earth of the one-way SCR,
Triggering end connects the end of single-chip microcomputer trigger signal three of the breaker circuit, and the regulating resistor is connected to the triggering of the one-way SCR
Between end and ground.
In a kind of safety ground stoppage circuit breaker of the present invention, the position limiting structure of the release link is to be arranged on release link
Correspondence position and the step of the spacing cooperation of anti-misconnection rod nose, the stopping means of the anti-misconnection rod nose is connection
In the block piece of the anti-misconnection rod nose, the block piece includes the confined planes coordinated with the step of the release link.
In a kind of safety ground stoppage circuit breaker of the present invention, the position limiting structure of the release link is to be arranged on release link
Correspondence position and the hole of the spacing cooperation of anti-misconnection rod nose, the stopping means of the anti-misconnection rod nose is the mistake proofing
Connect the forward end of iron core.
In a kind of safety ground stoppage circuit breaker of the present invention, the axis of the anti-misconnection iron core of the anti-misconnection electromagnet
Along the release electromagnet dropout iron core axis it is horizontal set or along the release electromagnet dropout iron core axis it is flat
Line direction is arranged at intervals.
The present invention solve its technical problem two technical schemes used be：A kind of safety ground stoppage circuit breaker is provided
Control method, safety ground stoppage circuit breaker is as described in one of claims 1 to 3, it is characterised in that this method includes：
Set original state be：
Reset key is up under action of reset spring to be in initial position, sliding denier retrolisthesis under support action of reset spring
From making to slide conductive movable contact in denier and separated with the conductive stationary contact on the electric conduction electrode-plate of left and right, wiring output stationary contact, at sliding denier
In initial position；
The dropout iron core of electromagnetic release mechanism release electromagnet is slided in the presence of dropout iron core return-spring through reset
The linkage pore pressure of block is on release link surface；
The anti-misconnection iron core of mistake proofing connection mechanism anti-misconnection electromagnet stretches out in the effect of anti-misconnection iron core return-spring, mistake proofing
The stopping means for connecing rod nose is in the descending restraining position of the limitation release link, and safety ground stoppage circuit breaker is in just
Beginning state；
Correct wiring action control：
After safety ground stoppage circuit breaker correct wiring, reset key is pressed, overcomes back-moving spring elastic force to make by dynamic pressure multiple
Position key drives release link descending, is disconnected when release link lower end compressing reed switch is descending with pcb board, safety ground stoppage circuit breaker
The MCU of circuit receives signal, and sending instruction makes anti-misconnection electromagnet be powered, and anti-misconnection coil produces magnetic field, makes anti-misconnection iron
Core in the presence of electromagnetic force with anti-misconnection iron core limiting plate adhesive, compression anti-misconnection iron core return-spring retracts, releases to multiple
Position bar it is spacing；
After the anti-misconnection iron core of anti-misconnection electromagnet is retracted, release link is continued traveling downwardly in the case where being acted on by dynamic pressure, works as reset
When reset lock hole on bar is overlapped with resetting the linkage hole of sliding block, the dropout iron core of electromagnetic release mechanism release electromagnet is de-
The reset lock hole of release link is passed through in the presence of button iron core return-spring, sliding block will be resetted and locked together with release link；
Release to the pressing force of reset key, reset key is up under action of reset spring, drive release link and locked
Reset sliding block up；When resetting the action inclined-plane cooperation of driving inclined-plane and sliding denier of sliding block, reset slider-actuated is slided denier and overcome
The elastic force reach of support back-moving spring, makes to slide the conductive movable contact in denier and is exported with breaker socket pole piece stationary contact and wiring
Stationary contact coordinates conducting, and safety ground stoppage circuit breaker is presented and resets working condition；
False wiring action control：
When safety ground stoppage circuit breaker power input terminals incorrect polarity wiring, circuit non-transformer not work is controlled
Make；Reset key is pressed, overcomes back-moving spring elastic force to make reset key drive release link descending by dynamic pressure, when the compressing of release link lower end
Reed switch is descending to be disconnected with pcb board, the original state that anti-misconnection electromagnet is remained powered off, the anti-misconnection iron of anti-misconnection electromagnet
The stopping means of core front end is spacing to release link progress in restraining position, prevents release link from continuing traveling downwardly, makes electromagnetic trip machine
The dropout iron core of structure release electromagnet can not be realized to release link and the locking for resetting sliding block；
Earth leakage protective is controlled：
When the MCU of safety ground stoppage circuit breaker circuit has detected leakage current, electric leakage grounded inspection circuit makes electromagnetism
Tripping mechanism energization is acted, and dropout iron core is bounced back under electromagnetic force, and dropout rod nose portion departs from the reset of release link
Lock hole, reset key up, reset sliding block disengaging reset under compression spring effect under action of reset spring together with release link
Stent returns are to original state；Original state is returned to due to resetting sliding block, the driving to sliding denier is released, sliding denier resets in support
Sliding after under spring effect, the conductive movable contact in sliding denier is separated with breaker socket pole piece stationary contact and wiring output stationary contact,
Safety ground stoppage circuit breaker input and socket output, the connection of wiring output end are disconnected, earth leakage protective is realized.
Implement a kind of safety ground stoppage circuit breaker and its control method of the present invention, compared with the prior art, its is beneficial
Effect is：
1. because the conductive movable contact of the corresponding sliding denier of mistake proofing connection mechanism and breaker socket pole piece stationary contact and wiring are exported
Stationary contact eliminates influence of the sliding stroke to breaker structure height dimension, so as to reduce open circuit to slide laterally cooperation
Device height dimension；
2. substituting negative-phase relay scheme using mistake proofing connection mechanism, more multiselect is provided for ground-fault interrupter structure
Select；
3. simple in construction, protection is reliable.
Brief description of the drawings
Fig. 1 is a kind of stereogram of embodiment of safety ground stoppage circuit breaker of the present invention.
Fig. 2 is the stereogram of existing ground-fault interrupter internal structure.
Fig. 3 is that existing ground-fault interrupter prevents the stereogram of false wiring mechanism.
Fig. 4 is the stereogram of safety ground stoppage circuit breaker internal structure of the present invention.
It is vertical after socket pole piece and socket output precision that Fig. 5 is that safety ground stoppage circuit breaker internal structure of the present invention is removed
Body figure.
Fig. 6 is that safety ground stoppage circuit breaker of the present invention prevents a kind of exploded perspective view of embodiment of false wiring mechanism.
Fig. 7 is the top view of safety ground stoppage circuit breaker internal structure of the present invention.
Fig. 8 is A-A sectional views in Fig. 7.
Fig. 9 is B-B sectional views in Fig. 7.
Figure 10 is one of exploded perspective view of safety ground stoppage circuit breaker internal structure of the present invention.
Figure 11 is the two of the exploded perspective view of safety ground stoppage circuit breaker internal structure of the present invention.
Figure 12 is the three of the exploded perspective view of safety ground stoppage circuit breaker internal structure of the present invention.
Figure 13 is a kind of circuit theory diagrams of embodiment of safety ground stoppage circuit breaker of the present invention.
Figure 14,15,16 be a kind of one of circuit diagram of embodiment of safety ground stoppage circuit breaker of the present invention, two, three.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 4, Figure 5, safety ground stoppage circuit breaker 1000 of the invention includes base 1, upper lid 2, support
Resetting-mechanism, electromagnetic release mechanism, mistake proofing connection mechanism, contact assembly, grounding assembly, power input connection component 7, output connection
Component 9, pcb board 30 and the breaker circuit being arranged on the pcb board 30.
The breaker circuit includes power circuit 309, electric leakage grounded inspection circuit 302, signal amplification as shown in fig. 13 that
(feeler switch 5 in Fig. 1 is to simulate electric leakage for shaping circuit 303, single chip machine controlling circuit 301, simulation electric-leakage detection circuit 305
Detect the manual test button of circuit 305), power detecting and working indicating 306, false wiring protection circuit 307 and de-
Buckle mechanism controls circuit 308.
In other embodiments, it is not provided with simulating electric-leakage detection circuit 305, the reality of basic goal of the invention of the invention is not influenceed
It is existing.
Power circuit 309, electric leakage grounded inspection circuit 302, signal amplification shaping circuit 303, single chip machine controlling circuit
301st, simulation electric-leakage detection circuit 305, power detecting and working indicating 306 and tripping mechanism control circuit 308 and its connected
The relation of connecing can use circuit and annexation (such as Figure 14, Figure 15, figure as disclosed in Chinese patent application CN201410641061
Shown in 16), each circuit can also be substituted using other equivalent circuits.
As shown in Figure 14, Figure 16, false wiring protection circuit 307 includes anti-misconnection electromagnet T1 (i.e. structure chart Fig. 5, Fig. 7
In anti-misconnection electromagnet 19), diode D1, unidirectional controllable silicon S CR3 and regulating resistor R9, the diode D1 positive pole connection should
The civil power live wire L of breaker circuit incoming end, negative pole connection anti-misconnection electromagnet T1 coil one end, the anti-misconnection electromagnet
T1 coil other end connection unidirectional controllable silicon S CR3 anode, the unidirectional controllable silicon S CR3 minus earth, triggering end connection
The single-chip microcomputer U4 of breaker circuit trigger signal Trig3 ends, regulating resistor R9 is connected to unidirectional controllable silicon S CR3 triggering
Between end and ground, to adjust triggering terminal voltage.
Diode D1 plays rectified action.In other embodiments, diode D1 is replaced using other rectification circuits, also can
Realize the object of the invention.
Base 1, upper lid 2, support resetting-mechanism, electromagnetic release mechanism, contact assembly, grounding assembly, power input connection
Component 7, output connection component 9 can use the counter structure of existing ground-fault interrupter or realize the improvement knot of identical function
Structure.
For example, as shown in Fig. 5 to Figure 10, reset cradle seat 20 that support resetting-mechanism includes being arranged on pcb board 30, set
Put the reset cradle seat 20 on cunning denier 12, support back-moving spring 13, reset key 4, back-moving spring 17, release link 14, reset
Sliding block 22 and the compression spring 24 being arranged in reset sliding block 22.Sliding denier 12 is insulator, be provided with breaker or so
Stationary contact 105 on socket pole piece (101,102) and wiring output stationary contact (it is invisible in figure, positioned at socket pole piece stationary contact
105 lower sections) coordinate control conducting, the conductive movable contact 121 of disconnection, conductive movable contact 121 is led by shorting conductive piece 8 and short circuit
Body 21 is connected with power input connection component 7；The action that sliding denier 12 is additionally provided with the driving inclined-plane cooperation with resetting sliding block 22 is oblique
Face, the action inclined-plane of sliding denier 12 coordinates with resetting the driving inclined-plane of sliding block 22, is driven by sliding block 22 is resetted, makes to slide denier 12 along reset
The slideway compressed stent back-moving spring of carrier base 20 makees transverse movement, and support back-moving spring 13 is arranged on sliding denier 12 and reset cradle
Between seat 20, to drive sliding denier transverse shifting.
As shown in Fig. 6, Fig. 7, Fig. 9, Figure 10 to Figure 12, electromagnetic release mechanism includes the dropout electricity being arranged on pcb board 30
Magnet 15, the release electromagnet 15 includes framework of trip coil 154, the tripping coil 152 being wrapped on the skeleton 154, set
Dropout iron core 151 and dropout iron core return-spring 153 in the skeleton 154, the dropout iron core for being arranged on the rear end of skeleton 154
Limiting plate 155, the dropout iron core return-spring 153 is located between the dropout iron core 151 and the dropout iron core limiting plate 155；Should
Dropout iron core 151 is in the presence of the dropout iron core return-spring 153, and its front end can be with the release link 14 of support resetting-mechanism
The linkage hole 143 of reset lock hole 142 and reset sliding block 22, which coordinates, locks together the reset sliding block 22 with the release link 14.
Under the "on" position of release electromagnet 15, the dropout iron core 151 adsorbs the dropout in the presence of the magnetic field of tripping coil 152
Iron core limiting plate 155 compresses the dropout iron core return-spring 153, releases the front end of dropout iron core 151 and release link 14 is slided with resetting
The locking of block 22.
After release link 14 is descending, its lower end can drive the reed switch 18 being arranged on pcb board 30 to disconnect.
As shown in Figure 10,11,12, reed switch 18 is arranged on the downside of pcb board 30.Before not driven, reed switch 18
In closure state, when reed switch 18 is deformed by the lower end compressing flex of release link 14, it is turned on, and triggering end is descending and PCB
Plate disconnects.
As shown in Fig. 6 to Fig. 8, Figure 10 to Figure 12, mistake proofing connection mechanism includes anti-misconnection electromagnet 19 and is arranged on release link
The position limiting structure that the block piece 196 of the upper and anti-misconnection rod nose of anti-misconnection electromagnet 19 coordinates.The anti-misconnection electromagnet 19 is wrapped
Include anti-misconnection coil rack 194, the anti-misconnection coil 192 being wrapped on the skeleton 194, the mistake proofing being arranged in the skeleton 194
Iron core 191 is connect, the block piece 196 and anti-misconnection iron core return-spring 193 of the front end of anti-misconnection iron core 191 is connected to, is arranged on this
The anti-misconnection iron core limiting plate 195 of the rear end of skeleton 194, the anti-misconnection iron core return-spring 193 be located at the anti-misconnection iron core 191 with
Between the anti-misconnection iron core limiting plate 195；Release link 14 is correspondingly arranged on matches somebody with somebody with the block piece 196 of the front end of anti-misconnection iron core 191
Close in the down direction of release link 14 by the spacing position limiting structure of the anti-misconnection rod nose；The anti-misconnection iron core 191 is by the mistake proofing
The effect stretching of iron core return-spring 193 is connect, the block piece 196 of its front end coordinates to the release link with the position limiting structure of the release link 14
Carry out spacing.
In the present embodiment, the position limiting structure of release link 14 is to be arranged on the correspondence position of release link 14 and anti-misconnection iron core
The step of the spacing cooperation of block piece 196 of 191 front ends, now the stopping means of anti-misconnection iron core is the block piece 196 of its front end, the gear
Part 196 includes the confined planes coordinated with the step of release link 14.
In other embodiments, the position limiting structure of release link 14 can use the correspondence position for being arranged on release link 14 with preventing
The hole of the spacing cooperation of misconnection rod nose, now the stopping means of anti-misconnection iron core is its forward end.
In the present embodiment, dropout of the axis of the anti-misconnection iron core 191 of anti-misconnection electromagnet 19 along release electromagnet 15
The parallel direction of the axis of iron core 151 is arranged at intervals.
In other embodiments, the axis of the anti-misconnection iron core 191 of anti-misconnection electromagnet 19 can be along release electromagnet 15
The axis of dropout iron core 151 horizontal setting, can also realize the object of the invention.
The safety ground stoppage circuit breaker control method of the present invention is entered to the above-mentioned safety ground stoppage circuit breaker of the present invention
Row control, this method includes：
Set safety ground stoppage circuit breaker original state be：
Reset key is up under action of reset spring to be in initial position, sliding denier retrolisthesis under support action of reset spring
From making to slide conductive movable contact in denier and separated with the conductive stationary contact on the electric conduction electrode-plate of left and right, wiring output stationary contact, at sliding denier
In initial position.
The dropout iron core of electromagnetic release mechanism release electromagnet is slided in the presence of dropout iron core return-spring through reset
The linkage pore pressure of block is on release link surface.
The anti-misconnection iron core of mistake proofing connection mechanism anti-misconnection electromagnet stretches out in the effect of anti-misconnection iron core return-spring, mistake proofing
The stopping means for connecing rod nose is in the descending restraining position of the limitation release link, and safety ground stoppage circuit breaker is in just
Beginning state.
Action control when safety ground stoppage circuit breaker correctly installs wiring：
After safety ground stoppage circuit breaker correct wiring, reset key is pressed, overcomes back-moving spring elastic force to make by dynamic pressure multiple
Position key drives release link descending, is disconnected when release link lower end compressing reed switch is descending with pcb board, safety ground stoppage circuit breaker
The MCU of circuit receives signal, and sending instruction makes anti-misconnection electromagnet be powered, and anti-misconnection coil produces magnetic field, makes anti-misconnection iron
Core in the presence of electromagnetic force with anti-misconnection iron core limiting plate adhesive, compression anti-misconnection iron core return-spring retracts, releases to multiple
Position bar it is spacing.
After the anti-misconnection iron core of anti-misconnection electromagnet is retracted, release link is continued traveling downwardly in the case where being acted on by dynamic pressure, works as reset
When reset lock hole on bar is overlapped with resetting the linkage hole of sliding block, the dropout iron core of electromagnetic release mechanism release electromagnet is de-
The reset lock hole of release link is passed through in the presence of button iron core return-spring, sliding block will be resetted and locked together with release link.
Release to the pressing force of reset key, reset key is up under action of reset spring, drive release link and locked
Reset sliding block up；When resetting the action inclined-plane cooperation of driving inclined-plane and sliding denier of sliding block, reset slider-actuated is slided denier and overcome
The elastic force reach of support back-moving spring, makes to slide the conductive movable contact in denier and is exported with breaker socket pole piece stationary contact and wiring
Stationary contact coordinates conducting, and safety ground stoppage circuit breaker is presented and resets working condition.
Action control when safety ground stoppage circuit breaker mistake installs wiring：
When safety ground stoppage circuit breaker power input terminals incorrect polarity wiring, circuit non-transformer, MCU etc. are controlled
Control circuit does not work；Reset key is pressed, overcomes back-moving spring elastic force to make reset key drive release link descending by dynamic pressure, when multiple
Compressing reed switch in position bar lower end is descending to be disconnected with pcb board, because MCU does not have power supply cisco unity malfunction, it is impossible to output triggering letter
Number, the original state that anti-misconnection electromagnet is remained powered off, the stopping means of the anti-misconnection rod nose of anti-misconnection electromagnet is in
Restraining position is spacing to release link progress, prevents release link from continuing traveling downwardly, makes the dropout iron of electromagnetic release mechanism release electromagnet
Core can not be realized to release link and the locking for resetting sliding block.
Protection control when leak current fault occurs in safety ground stoppage circuit breaker：
When the MCU of safety ground stoppage circuit breaker circuit has detected leakage current, electric leakage grounded inspection circuit makes electromagnetism
Tripping mechanism energization is acted, and dropout iron core is bounced back under electromagnetic force, and dropout rod nose portion departs from the reset of release link
Lock hole, reset key up, reset sliding block disengaging reset under compression spring effect under action of reset spring together with release link
Stent returns are to original state；Original state is returned to due to resetting sliding block, the driving to sliding denier is released, sliding denier resets in support
Sliding after under spring effect, the conductive movable contact in sliding denier is separated with breaker socket pole piece stationary contact and wiring output stationary contact,
Safety ground stoppage circuit breaker input and socket output, the connection of wiring output end are disconnected, earth leakage protective is realized.
Claims (6)
1. a kind of safety ground stoppage circuit breaker, including base, upper lid, support resetting-mechanism, electromagnetic release mechanism, sets of contacts
Part, grounding assembly, power input connection component, output connection component, pcb board and the breaker circuit being arranged on the pcb board,
The breaker circuit includes power circuit, electric leakage grounded inspection circuit, signal amplification shaping circuit, single chip machine controlling circuit, electricity
Detect and working indicating and tripping mechanism control circuit in source；
The support resetting-mechanism includes the reset cradle seat being arranged on the pcb board, the cunning being arranged on reset cradle seat
Denier, support back-moving spring, reset key, back-moving spring, release link, the compression spring for resetting sliding block and being arranged in reset sliding block,
The cunning denier include transversely slide with breaker socket pole piece stationary contact and wiring output stationary contact coordinate conductive movable contact, with
The action inclined-plane that the driving inclined-plane for resetting sliding block coordinates, support back-moving spring is arranged on the cunning denier and reset cradle seat
Between, the sliding denier transverse shifting of driving；
The electromagnetic release mechanism includes the release electromagnet being arranged on the pcb board, and the release electromagnet includes tripping coil
Skeleton, the tripping coil being wrapped on the skeleton, be arranged on intraskeletal the dropout iron core and dropout iron core return-spring, setting
Dropout iron core limiting plate in the skeleton rear end, the dropout iron core return-spring is located at the dropout iron core and the dropout iron core is spacing
Between plate；The dropout iron core reset that its front end can be with the support resetting-mechanism in the presence of the dropout iron core return-spring
The reset lock hole of bar and the linkage hole of reset sliding block, which coordinate, locks together the reset sliding block and the release link, in the dropout
Under electromagnet "on" position, the dropout iron core adsorbs dropout iron core limiting plate compression in the presence of the tripping coil magnetic field should
Dropout iron core return-spring, releases dropout rod nose to the release link and the locking for resetting sliding block；
The release link lower end can drive the reed switch being arranged on the pcb board to disconnect；
Characterized in that, the safety ground stoppage circuit breaker also includes mistake proofing connection mechanism, the mistake proofing connection mechanism includes anti-misconnection electricity
Magnet, the anti-misconnection electromagnet includes anti-misconnection coil rack, the anti-misconnection coil being wrapped on the skeleton, is arranged on the skeleton
Interior anti-misconnection iron core and anti-misconnection iron core return-spring, it is arranged on the anti-misconnection iron core limiting plate of the skeleton rear end and is arranged on
The stopping means of the anti-misconnection rod nose, the anti-misconnection iron core return-spring is located at the anti-misconnection iron core and the anti-misconnection iron core
Between limiting plate；The release link includes coordinating in down direction by the anti-misconnection with the stopping means of the anti-misconnection rod nose
The spacing position limiting structure of the stopping means of rod nose；The anti-misconnection iron core is acted on by the anti-misconnection iron core return-spring to be stretched out,
The stopping means of its front end coordinates spacing to release link progress with the release link position limiting structure；
The breaker circuit includes the false wiring protection circuit being connected with the single chip machine controlling circuit, and the false wiring is protected
Protection circuit includes the anti-misconnection electromagnet, rectification circuit, one-way SCR and regulating resistor, and the high potential of the rectification circuit is defeated
Enter the civil power live wire incoming end of the end connection breaker circuit, low potential output end and connect the anti-misconnection magnet spool one
End, the anti-misconnection magnet spool other end connects the anode of the one-way SCR, the minus earth of the one-way SCR, touches
Originator connects the end of single-chip microcomputer trigger signal three of the breaker circuit, and the regulating resistor is connected to the triggering end of the one-way SCR
Between ground.
2. safety ground stoppage circuit breaker as claimed in claim 1, it is characterised in that the position limiting structure of the release link is to set
Put the step in release link correspondence position and the spacing cooperation of anti-misconnection rod nose, the anti-misconnection rod nose it is spacing
Device is the block piece for being connected to the anti-misconnection rod nose, and the block piece includes spacing with the step cooperation of the release link
Face.
3. safety ground stoppage circuit breaker as claimed in claim 1, it is characterised in that the position limiting structure of the release link is to set
Put the hole in release link correspondence position and the spacing cooperation of anti-misconnection rod nose, the spacing dress of the anti-misconnection rod nose
It is set to the forward end of the anti-misconnection iron core.
4. the safety ground stoppage circuit breaker as described in one of claims 1 to 3, it is characterised in that the anti-misconnection electromagnet
The horizontal of dropout iron core axis of the axis along the release electromagnet of anti-misconnection iron core set or along the release electromagnet
Dropout iron core axis parallel direction be arranged at intervals.
5. a kind of safety ground stoppage circuit breaker control method, safety ground stoppage circuit breaker such as one of claims 1 to 3 institute
State, it is characterised in that this method includes：
Set original state be：
Reset key is up under action of reset spring to be in initial position, sliding denier under support action of reset spring retrolisthesis from,
Make to slide the conductive movable contact in denier to separate with the conductive stationary contact on the electric conduction electrode-plate of left and right, wiring output stationary contact, sliding denier is in
Initial position；
The dropout iron core of electromagnetic release mechanism release electromagnet is in the presence of dropout iron core return-spring through reset sliding block
The pore pressure that links is on release link surface；
The anti-misconnection iron core of mistake proofing connection mechanism anti-misconnection electromagnet stretches out in the effect of anti-misconnection iron core return-spring, anti-misconnection iron
The stopping means of core front end, which is in, limits the descending restraining position of the release link, and safety ground stoppage circuit breaker is in initial shape
State；
Correct wiring action control：
After safety ground stoppage circuit breaker correct wiring, reset key is pressed, overcomes back-moving spring elastic force to make reset key by dynamic pressure
Drive release link descending, disconnected when release link lower end compressing reed switch is descending with pcb board, safety ground stoppage circuit breaker circuit
MCU receive signal, sending instruction makes anti-misconnection electromagnet be powered, and anti-misconnection coil produces magnetic field, anti-misconnection iron core is existed
With anti-misconnection iron core limiting plate adhesive in the presence of electromagnetic force, compression anti-misconnection iron core return-spring is retracted, and is released to release link
It is spacing；
After the anti-misconnection iron core of anti-misconnection electromagnet is retracted, release link is continued traveling downwardly in the case where being acted on by dynamic pressure, when in release link
Reset lock hole with reset sliding block linkage hole overlap when, the dropout iron core of electromagnetic release mechanism release electromagnet is in dropout iron
The reset lock hole of release link is passed through in the presence of core back-moving spring, sliding block will be resetted and locked together with release link；
The pressing force to reset key is released, reset key is up under action of reset spring, drive release link and locked reset
Sliding block is up；When resetting the action inclined-plane cooperation of driving inclined-plane and sliding denier of sliding block, reset slider-actuated slides denier and overcomes support
The elastic force reach of back-moving spring, makes to slide the conductive movable contact and breaker socket pole piece stationary contact and wiring output stationary contact in denier
Point coordinates conducting, and safety ground stoppage circuit breaker is presented and resets working condition；
False wiring action control：
When safety ground stoppage circuit breaker power input terminals incorrect polarity wiring, control circuit non-transformer does not work；Press
Reset key is pressed, overcomes back-moving spring elastic force to make reset key drive release link descending by dynamic pressure, when reed is oppressed in release link lower end
Switch is descending to be disconnected with pcb board, the original state that anti-misconnection electromagnet is remained powered off, before the anti-misconnection iron core of anti-misconnection electromagnet
The stopping means at end is spacing to release link progress in restraining position, prevents release link from continuing traveling downwardly, takes off electromagnetic release mechanism
The dropout iron core of button electromagnet can not be realized to release link and the locking for resetting sliding block；
Earth leakage protective is controlled：
When the MCU of safety ground stoppage circuit breaker circuit has detected leakage current, electric leakage grounded inspection circuit makes electromagnetic trip
Mechanism energization action, makes dropout iron core be bounced back under electromagnetic force, and dropout rod nose portion departs from the reset locking of release link
Hole, reset key together with release link under action of reset spring it is up, reset sliding block compression spring effect under depart from reset cradle
It is returned to original state；Original state is returned to due to resetting sliding block, the driving to sliding denier is released, sliding denier is in support back-moving spring
Sliding after effect is lower, the conductive movable contact in sliding denier is separated with breaker socket pole piece stationary contact and wiring output stationary contact, is disconnected
Safety ground stoppage circuit breaker input and socket output, the connection of wiring output end, realize earth leakage protective.
6. safety ground stoppage circuit breaker control method as claimed in claim 5, it is characterised in that safety ground failure to trip
Device is as claimed in claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676381.XA CN105304425B (en) | 2015-10-16 | 2015-10-16 | A kind of safety ground stoppage circuit breaker and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510676381.XA CN105304425B (en) | 2015-10-16 | 2015-10-16 | A kind of safety ground stoppage circuit breaker and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105304425A CN105304425A (en) | 2016-02-03 |
| CN105304425B true CN105304425B (en) | 2017-08-25 |
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| CN201510676381.XA Active CN105304425B (en) | 2015-10-16 | 2015-10-16 | A kind of safety ground stoppage circuit breaker and its control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107302209B (en) * | 2017-06-12 | 2019-07-23 | 张家港市佰瑞普电器科技有限公司 | A kind of ground fault earth leakage protective device |
| CN111383862A (en) * | 2018-12-28 | 2020-07-07 | 龙岩烟草工业有限责任公司 | Relay protection resetting means and tobacco processing equipment's air compressor |
| CN113903633B (en) * | 2021-09-24 | 2023-10-20 | 江苏佰瑞普智能科技有限公司 | Ground fault circuit breaker protector for fault wiring power-off protection |
| CN115662813B (en) * | 2022-11-16 | 2023-03-10 | 盐城市瑞恒电力石化设备有限公司 | Emergency circuit protection device with electric shock protection function for park construction |
| CN116798827B (en) * | 2023-07-20 | 2023-12-29 | 温州方特电气有限公司 | Two-section conductor type ground fault circuit breaker with reverse wiring protection function |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195311C (en) * | 2002-08-01 | 2005-03-30 | 浙江东正电气有限公司 | Reverse connection protector for grounding failure breaker |
| CN2619359Y (en) * | 2003-05-06 | 2004-06-02 | 温州三蒙科技电气有限公司 | Earthing fault breaker with error connection protection |
| CN2704941Y (en) * | 2004-05-21 | 2005-06-15 | 上海益而益电器制造有限公司 | Leakage protective socket with reversed wiring protective function |
| CN2733578Y (en) * | 2004-09-23 | 2005-10-12 | 温州三蒙科技电气有限公司 | Earth fault circuit-breaker having reset locking and protecting device |
| CN2762328Y (en) * | 2004-12-30 | 2006-03-01 | 上海力以电气有限公司 | Earth fault circuit breake with electromagnetic drop-out mechanism |
| US7317600B2 (en) * | 2005-02-25 | 2008-01-08 | Huadao Huang | Circuit interrupting device with automatic end of life test |
| US7315437B2 (en) * | 2006-05-31 | 2008-01-01 | Hubbell Incorporated | Self testing ground fault circuit interrupter (GFCI) with end of life (EOL) indicator, secondary power supply for EOL and self test circuitry, and device for opening line hot when EOL occurs |
| CN201018127Y (en) * | 2007-01-17 | 2008-02-06 | 黄华道 | Novel leakage protection socket |
| US10062535B2 (en) * | 2014-01-15 | 2018-08-28 | Hubbell Incorporated | Self-test GFCI device with dual solenoid coil electric control |
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