CN104934926A - Leakage protection apparatus capable of forced tripping - Google Patents
Leakage protection apparatus capable of forced tripping Download PDFInfo
- Publication number
- CN104934926A CN104934926A CN201510278823.5A CN201510278823A CN104934926A CN 104934926 A CN104934926 A CN 104934926A CN 201510278823 A CN201510278823 A CN 201510278823A CN 104934926 A CN104934926 A CN 104934926A
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- China
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- spring
- hook plate
- push rod
- earth leakage
- protective device
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Abstract
Provided is a leakage protection apparatus capable of forced tripping. The leakage protection apparatus is formed by a shell, a circuit board, a control circuit of a driving solenoid, a zero sequence current transformer, an electromagnetic tripping and buckling device, and a forced tripping device, the forced tripping device is provided with a forced tripping button, a third spring, a movable hook plate, and a fourth spring, the forced tripping button is arranged between the circuit board and the shell, the movable hook plate is arranged between the circuit board and the driving solenoid, an inclined plane of the lower end part of the forced tripping button is contacted and connected with an inclined plane of the upper end part of the movable hook plate in a sliding manner, the front end part of an armature is equipped with a jump buckling piece, the front end part of the jump buckling piece is inserted into a pressure rod, the pressure rod is sleeved by a reset push rod and is connected with the reset push rod in a sliding manner, the rear end part of the jump buckling piece is connected with the front hook part of the movable hook plate in a contacted manner, and the front end part of the jump buckling piece is clamped with a groove of the reset push rod. According to the leakage protection apparatus, when electronic parts in the apparatus has accidental failures or power supply faults, forced tripping can be realized, the connection with a phase line and a zero line of the power supply is cut off, and the electrical safety is guaranteed.
Description
Technical field
The present invention relates to Electrical Safety resist technology field, especially relate to the earth leakage protective device that can have and force to thread off.
Background technology
Earth leakage protective device is also called residual current operated protective device; this series products is structurally all provided with electromagnetic trip and locker, experimental rig, electronic circuit board; main application is for cutting off the electricity supply immediately when leak current fault appears in the supply line of its rear end or electrical equipment, prevents the safety of life and property because of harm people when the supply line of its rear end or apparatus failure produce electric leakage.In use, if want to make earth leakage protective device disconnect the connection with power supply, then just can be realized by the test switch pressed in experimental rig under normal circumstances.But; when the inside of this kind of earth leakage protective device occur chance failure (such as: electronic component be short-circuited inefficacy, solenoid broken string open circuit) maybe when provide for earth leakage protective device the mains-supplied circuit of working power break down (such as: zero line surprisingly disconnects) time this kind of earth leakage protective device just can not to thread off disconnection and being connected to of power supply; even if the test switch pressing experimental rig also cannot be cut off the electricity supply; now just can not eliminate the unexpected electric short circuit of appearance or the fault of electric leakage in time; so still there is very large potential safety hazard to people's electricity consumption in it.
Summary of the invention
The object of the present invention is to provide a kind of earth leakage protective device forcing to thread off; this earth leakage protective device electronic component therein surprisingly lost efficacy or power failure time still can force to thread off and disconnect the connection with power supply phase line, zero line, thus guarantee that electricity consumption is safer.
Technical solution proposed by the invention is such:
An earth leakage protective device of threading off can be forced, include shell, wiring board, drive the control circuit of solenoid, zero sequence current mutual inductor, electromagnetic trip and locker, this electromagnetic trip and locker include driving solenoid, coil rack, 1st spring, armature, jump grip tab, depression bar, reset push rod, 2nd spring, phase line contact, zero line contact, ground wire contact, coil holder, is provided with by driving solenoid in coil holder, the electromagnet of armature and the 1st spring composition, coil holder upper end is embedded with wiring board, is provided with reset push rod, is also provided with forcible tripping device between wiring board and shell, and described forcible tripping device is provided with pressure trip push button, 3rd spring, mobile hook plate and the 4th spring, the pressure trip push button of band the 3rd spring is provided with between wiring board and shell, the mobile hook plate of band the 4th spring is provided with between wiring board and driving solenoid, inclined-plane, trip push button bottom and mobile hook plate upper end contact of incline plane is forced to be slidably connected, at armature leading section, jumping grip tab is housed, jumping grip tab leading section inserts in depression bar, this depression bar is enclosed within reset push rod and is also slidably connected, described jumping grip tab rearward end contacts with movable hook front edge of board hook part and connects, and jumps grip tab leading section and is connected with the groove clamping of reset push rod.
Described mobile hook plate expansion bearing is on coil holder, and mobile hook plate encloses online on holder and moves horizontally.Inclined-plane, described pressure trip push button bottom mates to contact with inclined-plane, mobile hook plate upper end and connects, and its two inclined-plane is all the face of cylinder or taper seat.
Compared with prior art, the present invention has following remarkable result:
(1) earth leakage protective device of the present invention is because being provided with forcible tripping device; can not to thread off time (such as: electronic component puncture short, solenoid broken string open circuit) thus the electronic component overcome when its inside surprisingly lost efficacy the problem of cutting off the electricity supply and connecting, so the present invention provides a kind of safer Electrical Safety guarantee than existing earth leakage protective device.
(2) earth leakage protective device of the present invention also overcomes the problem can not threaded off when mains supply meets accident fault and to cut off the electricity supply and connect, so the present invention provides a kind of safer Electrical Safety guarantee than existing earth leakage protective device because being provided with forcible tripping device.
(3) earth leakage protective device of the present invention is when forcing power supply phase line, zero line, ground wire all to be disconnected when threading off, and provides a kind of safer Electrical Safety guarantee than existing earth leakage protective device.
Earth leakage protective device of the present invention is mainly used in the earth leakage protective of various household electrical appliance, mainly makes the power line of earth leakage protective device or band earth leakage protective device.
Accompanying drawing explanation
Fig. 1 is a kind of schematic appearance forcing the earth leakage protective device of threading off of one embodiment of the invention.
Fig. 2 is the internal structure schematic diagram after earth leakage protective device shown in Fig. 1 removes the parts such as shell.
Fig. 3 is the electromagnetic trip of the inside of earth leakage protective device shown in Fig. 1 and the deployed configuration schematic diagram of locker and forcible tripping device.
Fig. 4 when to be that earth leakage protective device shown in Fig. 1 is unexecuted force to thread off along the cutaway view in A-A direction.
Along the cutaway view in A-A direction when Fig. 5 is the pressure of earth leakage protective device shown in Fig. 1 dropout.
Fig. 6 is the schematic appearance of mobile hook plate part frontal in earth leakage protective device shown in Fig. 1.
Fig. 7 is the schematic appearance in direction, mobile hook plate part bottom surface in earth leakage protective device shown in Fig. 1.
Fig. 8 is a kind of electronic schematic diagram forcing the earth leakage protective device of threading off of the present invention.
Embodiment
By embodiment below, the present invention is further elaborated.
See shown in Fig. 1 to Fig. 8, a kind of earth leakage protective device forcing to thread off, primarily of shell 1, wiring board 2, drives the control circuit 18 of solenoid, zero sequence current mutual inductor 17, electromagnetic trip and locker to form.This electromagnetic trip and locker by driving solenoid 3, coil rack 4, the 1st spring 5, armature 6, jump grip tab 7, depression bar 8, reset push rod 9, the 2nd spring 10, phase line moving contact 16, zero line moving contact 16-1, ground wire moving contact 16-2, phase line fixed contact 15, zero line fixed contact 15-1, ground wire fixed contact 15-2, coil holder 11, forcible tripping device and experimental rig 19 and form.Be provided with by the electromagnet driving solenoid 3, armature 6 and the 1st spring 5 to form in coil holder 11, coil holder 11 upper end is embedded with wiring board 2, reset push rod 9 is provided with between wiring board 2 and shell 1, also be provided with forcible tripping device, this forcible tripping device is provided with forces trip push button 12, the 3rd spring 13, mobile hook plate 14 and the 4th spring 20.Pressure trip push button the 12,3rd spring 13 being provided with band the 3rd spring 13 between wiring board 2 and shell 1 is arranged on to be forced between trip push button 12 and wiring board 2.Mobile hook plate the 14,4th spring 20 being provided with band the 4th spring 20 between wiring board 2 and driving solenoid 3 is arranged in the horizontal direction between mobile hook plate 14 and coil rack 4.Inclined-plane 12-1 descending and mobile hook plate 14 upper end inclined-plane 14-1 in trip push button 12 bottom is forced to contact and be slidably connected, be equipped with at armature 6 leading section and jump grip tab 7, jumping grip tab 7 leading section inserts in depression bar 8, this depression bar 8 is enclosed within reset push rod 9 and is also slidably connected, described jumping grip tab 7 rearward end 7-1 contacts with mobile hook plate 14 front end hook part 14-2 and connects, and jumps grip tab 7 leading section and is connected with the groove 9-1 clamping of reset push rod 9.This mobile guide face 14-3 moving hook plate 14 is bearing on the 1st bearing-surface 11-1 on coil holder 11 and the 2nd bearing-surface 11-2 and moves horizontally.When forcing to thread off, press with hand and force trip push button 12 to compress the 3rd spring 13 descending the and mobile hook plate 14 upper end inclined-plane 14-1 of inclined-plane, the bottom 12-1 of pressure trip push button 12 is contacted, make mobile hook plate 14 on coil holder 11, compress the 4th spring 20 to pull while movement backward and jump grip tab 7 and armature 6 and compress the 1st spring 5 and move backward, make jumping grip tab 7 be separated dropout with the groove 9-1 of reset push rod 9; After unclamping hand, under the effect of the 3rd spring 13 elastic force, force inclined-plane, the bottom 12-1 of trip push button 12 upwards to depart from mobile hook plate 14 upper end inclined-plane 14-1 reset, under the effect of the 4th spring 20 elastic force, mobile hook plate 14 moves forward reset on coil holder 11 simultaneously, and under the effect of the 1st spring 5 elastic force, promotes armature 6 and jump grip tab 7 to move forward reset.
During use, reset push rod 9 is pressed with hand, reset push rod 9 makes the 2nd spring 10 compress downwards, when the groove 9-1 on reset push rod 9 move downward correspondence jump the position of grip tab 7 time, jump and groove 9-1 that grip tab 7 is pushed into rapidly by the 1st spring 5, armature 6 on reset push rod 9 block snap close and makes reset push rod 9, depression bar 8, jump the entirety that grip tab 7 forms a motion; After unclamping hand, reset push rod 9 moves upward and drives depression bar 8 to press against respectively to be equipped with the phase pole movable contact spring of phase line moving contact 16 and the zero pole movable contact spring that zero line moving contact 16-1 is housed move to the direction of phase line fixed contact 15 with zero line fixed contact 15-1 under the effect of the 2nd spring 10, and finally makes phase line moving contact 16 all close with phase line fixed contact 15, zero line moving contact 16-1 and zero line fixed contact 15-1, ground wire moving contact 16-2 and ground wire fixed contact 15-2 phase line, zero line and the ground wire of connecting city's power supply.
In use, once earth leakage protective device occurs that inner electronic component lost efficacy (such as: the accidental short circuit decrepitates etc. such as piezo-resistance cause burns earth leakage protective device, solenoid 3 unexpected broken string open circuit or burn) mains power fails (such as: zero line surprisingly disconnects) while occur again electric leakage or electrical fire dangerous time, this earth leakage protective device cannot be threaded off automatically, the connection with power supply can not be disconnected, the test switch that also cannot be arranged on by operation in the experimental rig 19 on earth leakage protective device shell 1 makes earth leakage protective device thread off, therefore the connection with power supply can not be disconnected, at this moment then can press and force trip push button 12, forcing trip push button 12 to compress the 3rd spring 13 makes it force the descending and mobile hook plate 14 upper end inclined-plane 14-1 of inclined-plane, the bottom 12-1 of trip push button 12 to contact, make mobile hook plate 14 on coil holder 11, compress the 4th spring 20 to pull while movement backward and jump grip tab 7 and armature 6 and compress the 1st spring 5 and move backward, and jumping grip tab 7 is separated with the groove 9-1 of reset push rod 9, now, reset push rod 9 and depression bar 8, jump the entirety that grip tab 7 no longer forms a motion, reset push rod 9 pops up rapidly under the effect of the 2nd spring 10, meanwhile, phase line moving contact 16 and zero line moving contact 16-1 are in phase, be separated disconnection with phase line fixed contact 15 with zero line fixed contact 15-1 rapidly under the drive of zero pole movable contact spring,
Ground wire moving contact 16-2 is also separated disconnection with ground wire fixed contact 15-2, makes earth leakage protective device disconnect the connection with the phase line of mains supply, zero line, ground wire, thus has ensured the Electrical Safety of people better.
After pressure trip action completes and looses one's grip, under the effect of the 3rd spring 13 elastic force, force inclined-plane, the bottom 12-1 of trip push button 12 upwards to depart from mobile hook plate 14 upper end inclined-plane 14-1 reset, meanwhile under the effect of the 4th spring 20 elastic force, mobile hook plate 14 moves forward reset on coil holder 11, promotes armature 6 simultaneously and jump grip tab 7 to move forward reset under the effect of the 1st spring 5 elastic force.After failture evacuation, press this earth leakage protective device of reset push rod 9 with hand and return to normal operating conditions.
Because the circuit principle structure of earth leakage protective detection and driving solenoid 3 and control circuit 18 thereof has been known technology, do not repeat them here.
Claims (3)
1. can force an earth leakage protective device of threading off, include shell, wiring board, drive the control circuit of solenoid, zero sequence current mutual inductor, electromagnetic trip and locker, this electromagnetic trip and locker include driving solenoid, coil rack, 1st spring, armature, jump grip tab, depression bar, reset push rod, 2nd spring, phase line contact, zero line contact, ground wire contact, coil holder, is provided with by driving solenoid in coil holder, the electromagnet of armature and the 1st spring composition, coil holder upper end is embedded with wiring board, is provided with reset push rod, it is characterized in that: be also provided with forcible tripping device between wiring board and shell, and described forcible tripping device is provided with pressure trip push button, 3rd spring, mobile hook plate and the 4th spring, the pressure trip push button of band the 3rd spring is provided with between wiring board and shell, the mobile hook plate of band the 4th spring is provided with between wiring board and driving solenoid, inclined-plane, trip push button bottom and mobile hook plate upper end contact of incline plane is forced to be slidably connected, at armature leading section, jumping grip tab is housed, jumping grip tab leading section inserts in depression bar, this depression bar is enclosed within reset push rod and is also slidably connected, described jumping grip tab rearward end contacts with movable hook front edge of board hook part and connects, and jumps grip tab leading section and is connected with the groove clamping of reset push rod.
2. the earth leakage protective device forcing to thread off according to claim 1, is characterized in that: described mobile hook plate expansion bearing is on coil holder, and mobile hook plate encloses online on holder and moves horizontally.
3. the earth leakage protective device forcing to thread off according to claim 1, is characterized in that: inclined-plane, described pressure trip push button bottom mates to contact with inclined-plane, mobile hook plate upper end and connects, and its two inclined-plane is all the face of cylinder or taper seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278823.5A CN104934926A (en) | 2015-05-28 | 2015-05-28 | Leakage protection apparatus capable of forced tripping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278823.5A CN104934926A (en) | 2015-05-28 | 2015-05-28 | Leakage protection apparatus capable of forced tripping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104934926A true CN104934926A (en) | 2015-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510278823.5A Pending CN104934926A (en) | 2015-05-28 | 2015-05-28 | Leakage protection apparatus capable of forced tripping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003141981A (en) * | 2001-11-07 | 2003-05-16 | Fuji Electric Co Ltd | Leakage protection plug |
| CN201466394U (en) * | 2009-06-15 | 2010-05-12 | 祝孔成 | Leakage protection switch with ground wire protection device |
| CN102237614A (en) * | 2010-04-22 | 2011-11-09 | 黄华道 | Electricity leakage protection socket |
| CN102801017A (en) * | 2012-08-24 | 2012-11-28 | 黄德富 | Leakage protection socket with sparking preventing function |
| CN204905835U (en) * | 2015-05-28 | 2015-12-23 | 深圳市良辉科技有限公司 | Can force earthleakage protective equipment of dropout |
-
2015
- 2015-05-28 CN CN201510278823.5A patent/CN104934926A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003141981A (en) * | 2001-11-07 | 2003-05-16 | Fuji Electric Co Ltd | Leakage protection plug |
| CN201466394U (en) * | 2009-06-15 | 2010-05-12 | 祝孔成 | Leakage protection switch with ground wire protection device |
| CN102237614A (en) * | 2010-04-22 | 2011-11-09 | 黄华道 | Electricity leakage protection socket |
| CN102801017A (en) * | 2012-08-24 | 2012-11-28 | 黄德富 | Leakage protection socket with sparking preventing function |
| CN204905835U (en) * | 2015-05-28 | 2015-12-23 | 深圳市良辉科技有限公司 | Can force earthleakage protective equipment of dropout |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335953A (en) * | 2018-03-31 | 2018-07-27 | 浙江奥德克电气科技有限公司 | Breaker |
| CN108335953B (en) * | 2018-03-31 | 2024-01-02 | 浙江天为电气科技有限公司 | Circuit breaker |
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Application publication date: 20150923 |
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| WD01 | Invention patent application deemed withdrawn after publication |