CN204559081U - A kind of have the earth leakage protective device forcing tripping function - Google Patents
A kind of have the earth leakage protective device forcing tripping function Download PDFInfo
- Publication number
- CN204559081U CN204559081U CN201520231569.9U CN201520231569U CN204559081U CN 204559081 U CN204559081 U CN 204559081U CN 201520231569 U CN201520231569 U CN 201520231569U CN 204559081 U CN204559081 U CN 204559081U
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- push rod
- wiring board
- pressure plate
- rotary pressure
- grip tab
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Abstract
A kind of have the earth leakage protective device forcing tripping function, by shell, wiring board, control circuit, zero sequence current mutual inductor, electromagnetic trip forms with locker and forcible tripping device, this forcible tripping device is provided with the 2nd and forces dropout push rod, 3rd spring, rotary pressure plate, between wiring board and shell, be provided with band the 3rd spring the 2nd forces dropout push rod, rotary pressure plate is provided with between wiring board and driving solenoid, 2nd forces descending the contact with rotary pressure plate through wiring board in dropout push rod bottom to connect, at armature leading section, jumping grip tab is housed, jumping grip tab leading section inserts in depression bar, this depression bar is enclosed within the 1st reset push rod and is also slidably connected, jumping grip tab rearward end contacts with hook part, rotary pressure plate front end and connects, jump grip tab leading section to be connected with the groove clamping of the 1st reset push rod.This earth leakage protective device electronic component therein surprisingly lost efficacy or power failure time can force to thread off to disconnect and be connected with power supply phase line, zero line, thus guarantee that electricity consumption is safer.
Description
Technical field
The utility model relates to Electrical Safety resist technology field, especially relates to a kind of earth leakage protective device with pressure tripping function.
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 the supply line of its rear end or electrical equipment break down, and 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 purpose of this utility model is that providing a kind of has the earth leakage protective device forcing tripping function; 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.
The technical solution that the utility model proposes is such:
There is the earth leakage protective device forcing tripping function, 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, 1st reset push rod, 2nd spring, phase line contact, zero line 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 the 1st reset push rod, is also provided with forcible tripping device between wiring board and shell, and described forcible tripping device is provided with the 2nd and forces dropout push rod, 3rd spring and rotary pressure plate, between wiring board and shell, be provided with band the 3rd spring the 2nd forces dropout push rod, rotary pressure plate is provided with between wiring board and driving solenoid, 2nd forces descending the contact with rotary pressure plate through wiring board in dropout push rod bottom to connect, at armature leading section, jumping grip tab is housed, jumping grip tab leading section inserts in depression bar, this depression bar is enclosed within the 1st reset push rod middle and lower part and is slidably connected, described jumping grip tab rearward end contacts with hook part, rotary pressure plate front end and connects, and jumps grip tab leading section and is connected with the groove clamping of the 1st reset push rod.
The rotating shaft expansion bearing of described rotary pressure plate one end is on coil holder, and rotary pressure plate freely up and down swings around this rotating shaft.
Compared with prior art, the utility model has following beneficial effect:
(1) earth leakage protective device of the present utility model 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 utility model provides a kind of safer Electrical Safety guarantee than existing earth leakage protective device.
(2) earth leakage protective device of the present utility model 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 utility model provides a kind of safer Electrical Safety guarantee than existing earth leakage protective device because being provided with forcible tripping device.
Earth leakage protective device of the present utility model 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 with the earth leakage protective device forcing tripping function of the utility model embodiment.
Fig. 2 is the internal structure schematic diagram after earth leakage protective device shown in Fig. 1 removes 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 a kind of electronic schematic diagram with the earth leakage protective device forcing tripping function of the utility model.
Embodiment
By embodiment below, the utility model is further elaborated.
See shown in Fig. 1 to Fig. 6, a kind of have the earth leakage protective device forcing tripping function, 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, the 1st reset push rod 9, the 2nd spring 10, phase line moving contact 16 form with zero line fixed contact 15-1, coil holder 11, forcible tripping device and experimental rig 19 with zero line moving contact 16-1, phase line fixed contact 15.Be provided with in coil holder 11 by the electromagnet driving solenoid 3, armature 6 and the 1st spring 5 to form, coil holder 11 upper end is embedded with wiring board 2, is provided with the 1st reset push rod 9 between wiring board 2 and shell 1.Also be provided with forcible tripping device, this forcible tripping device is provided with the 2nd and forces dropout push rod the 12, the 3rd spring 13 and rotary pressure plate 14.Between wiring board 2 and shell 1, be provided with the 2nd of band the 3rd spring 13 forces dropout push rod the 12,3rd spring 13 to be arranged between the 2nd pressure dropout push rod 12 and wiring board 2.Rotary pressure plate 14 is provided with between wiring board 2 and driving solenoid 3,2nd forces descending the contact with rotary pressure plate 14 through wiring board 2 in dropout push rod 12 bottom to connect, be equipped with at armature 6 leading section and jump grip tab 7 and depression bar 8, this depression bar 8 is enclosed within the 1st reset push rod 9 middle and lower part and is slidably connected, described jumping grip tab 7 rearward end contacts with hook part, rotary pressure plate 14 front end and connects, and jumps grip tab 7 leading section and is connected with the groove 9-1 clamping on the 1st reset push rod 9.When forcing to thread off, the 2nd forces dropout push rod 12 through wiring board 2 and pushes rotary pressure plate 14 to be rotated down, and makes rotary pressure plate 14 pushing jump grip tab 7 and moves backward, and make jumping grip tab 7 be separated dropout with the groove 9-1 of the 1st reset push rod 9.2nd forces dropout push rod 12 to be arranged on shell 1.
During use, the 1st reset push rod 9 is pressed with hand, 1st reset push rod 9 makes the 2nd spring 10 compress downwards, when the groove 9-1 on the 1st reset push rod 9 down move to corresponding 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 the 1st reset push rod 9 block snap close and makes the 1st reset push rod 9, depression bar 8, jump the entirety that grip tab 7 forms a motion; After unclamping hand, 1st 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 and phase line fixed contact 15, zero line moving contact 16-1 and zero line fixed contact 15-1 all close phase line and the zero line 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 the 2nd and force dropout push rod 12, 2nd forces dropout push rod 12 to compress the 3rd spring 13 and pushes rotary pressure plate 14 through wiring board 2 to be rotated down and to promote jumping grip tab 7 and move backward, thus make jumping grip tab 7 be separated dropout from the groove 9-1 the 1st reset push rod 9, now, 1st reset push rod 9 and depression bar 8, jump the entirety that grip tab 7 no longer forms a motion, 1st 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, to be separated with zero line fixed contact 15-1 with phase line fixed contact 15 rapidly under the drive of zero pole movable contact spring, earth leakage protective device is made to disconnect the connection with mains supply, thus ensured the Electrical Safety of people better.
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 (2)
1. there is the earth leakage protective device forcing tripping function, 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, 1st reset push rod, 2nd spring, phase line contact, zero line 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 the 1st 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 the 2nd and forces dropout push rod, 3rd spring and rotary pressure plate, between wiring board and shell, be provided with band the 3rd spring the 2nd forces dropout push rod, rotary pressure plate is provided with between wiring board and driving solenoid, 2nd forces descending the contact with rotary pressure plate through wiring board in dropout push rod bottom to connect, at armature leading section, jumping grip tab is housed, jumping grip tab leading section inserts in depression bar, this depression bar is enclosed within the 1st reset push rod middle and lower part and is slidably connected, described jumping grip tab rearward end contacts with hook part, rotary pressure plate front end and connects, and jumps grip tab leading section and is connected with the groove clamping of the 1st reset push rod.
2. according to claim 1 have the earth leakage protective device forcing tripping function, it is characterized in that: the rotating shaft expansion bearing of described rotary pressure plate one end is on coil holder, and rotary pressure plate freely up and down swings around this rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231569.9U CN204559081U (en) | 2015-04-17 | 2015-04-17 | A kind of have the earth leakage protective device forcing tripping function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231569.9U CN204559081U (en) | 2015-04-17 | 2015-04-17 | A kind of have the earth leakage protective device forcing tripping function |
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| Publication Number | Publication Date |
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| CN204559081U true CN204559081U (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520231569.9U Active CN204559081U (en) | 2015-04-17 | 2015-04-17 | A kind of have the earth leakage protective device forcing tripping function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753022A (en) * | 2015-04-17 | 2015-07-01 | 深圳市良辉科技有限公司 | Earth leakage protector with forced tripping function |
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2015
- 2015-04-17 CN CN201520231569.9U patent/CN204559081U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104753022A (en) * | 2015-04-17 | 2015-07-01 | 深圳市良辉科技有限公司 | Earth leakage protector with forced tripping function |
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| GR01 | Patent grant |