CN203243021U - An electric connecting wire protection apparatus - Google Patents
An electric connecting wire protection apparatus Download PDFInfo
- Publication number
- CN203243021U CN203243021U CN 201320102005 CN201320102005U CN203243021U CN 203243021 U CN203243021 U CN 203243021U CN 201320102005 CN201320102005 CN 201320102005 CN 201320102005 U CN201320102005 U CN 201320102005U CN 203243021 U CN203243021 U CN 203243021U
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- CN
- China
- Prior art keywords
- tripping coil
- contact
- zero
- fixed contact
- terminal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an electric connecting wire protection apparatus comprising a trip coil, a fault detecting circuit, and a release. In a normal operating mode, current passes the trip coil. The fault detecting circuit is configured in response to a predetermined error condition of the residual current of a phase-line static contact and a zero-line static contact in order to loss the electricity of the trip coil. The release is configured in response to the current variation in the trip coil so as to linearly move relative to the trip coil. A phase-line moving contact and a zero-line moving contact are respectively separated from a corresponding static contact and can be deformed under the effect of the release so as to respectively contact a corresponding static contact. When the effect of the release is removed, the phase-line moving contact and the zero-line moving contact are respectively separated from a corresponding static contact again. The electric connecting wire protection apparatus with simple structure is capable of automatically cutting off the electric connection between an electric appliance and a power socket under the circumstance that fault current easy to result in unsafe electricity utilization occurs to an output phase-line terminal and/or an output zero-line terminal.
Description
Technical field
The utility model relates to Electrical Safety protection field, relates in particular to the electric Wiring protection device of the breaking characteristics that have between input and the output.
Background technology
Because terminal block is lack of standardization, might there be false wiring in the supply socket of household electrical appliance, links to each other with phase line for example with phase line and the zero line improved cross connect of socket, or with ground wire, the easy like this casing insulation hydraulic performance decline that causes electrical appliance or charged causes electric shock accidents to occur.
For this reason, need a kind of situation that can break down in response to electricity consumption and the electric Wiring protection device that automatically cuts off power supply.Yet existing electric Wiring protection device is complex structure often, and cost is high, is difficult to be accepted by the user, and is unfavorable for promoting.
The utility model content
A main purpose of the present utility model is, provides a kind of simple in structure, and cost is low, the electric Wiring protection device of realizing easily.
In one embodiment, provide a kind of electric Wiring protection device, it comprises: input phase terminal, input zero terminal, input ground wire terminal; Output phase terminal, output zero terminal, output ground wire terminal; The phase line fixed contact is connected to described output phase terminal; The zero line fixed contact is connected to described output zero terminal; The phase line moving contact is connected to described input phase terminal; The zero line moving contact is connected to described input zero terminal; And wherein, described output ground wire terminal is connected to described input ground wire terminal; Described electric Wiring protection device also comprises: tripping coil under the normality mode of operation, has electric current to flow through in the described tripping coil; Failure detector circuit; Be configured in response to the predetermined error conditions of the residual current of described phase line fixed contact and zero line fixed contact and make described tripping coil dead electricity; Release, it is constructed in response to the curent change in described tripping coil with respect to described tripping coil Linear-moving; Wherein, described phase line moving contact, zero line moving contact are spaced with corresponding fixed contact respectively, and can under the effect of described release deformation occur, thus contact with corresponding fixed contact, when the effect of described release removes, return to corresponding fixed contact spaced.
Thus, can be with the breaking characteristics between the simple structure realization input and output, protection user's safety according to scheme of the present utility model.
In foundation another embodiment of the present utility model, electric Wiring protection device also comprises: static iron core, and it is inner that it is fixed on described tripping coil; And described release comprises: the release drive point, and during with respect to described tripping coil Linear-moving, described release drive point produces active force to described phase line moving contact and described zero line moving contact at described release; The dropout iron core, it extends in the described tripping coil; Wherein, when described tripping coil energising, described dropout iron core is inhaled in the described tripping coil, and is adjacent to described static iron core, and described release drive point drives described phase line moving contact and described zero line moving contact produces deformation, to contact with corresponding fixed contact; When not having electric current to flow through in described tripping coil, described dropout iron core moves to the direction away from described tripping coil under the effect of described phase line moving contact and described zero line moving contact recuperability.
In a foundation embodiment of the present utility model, electric Wiring protection device also comprises working station indicator, and whether itself and described tripping coil are connected in parallel, have electric current to flow through in the described tripping coil to indicate.Described electric Wiring protection device has opaque shell; and be provided with the transparent plastic article that extends inwardly to described working station indicator at described shell so that the light of described working station indicator from described electric Wiring protection device outside as seen.
Thus, can be so that the position of working station indicator can adapt to the internal circuit configuration of electric Wiring protection device neatly.
In a foundation embodiment of the present utility model; described electric Wiring protection device has opaque shell; and be provided with the transparent plastic article that extends inwardly to described working station indicator at described shell so that the light of described working station indicator from described electric Wiring protection device outside as seen.
In a foundation embodiment of the present utility model, described failure detector circuit comprises magnetic ring component, described phase line fixed contact and zero line fixed contact extend into described magnetic ring component, the described magnetic ring component output residual current detection signal relevant with the residual current in described phase line fixed contact and the zero line fixed contact;
Signal processing circuit is coupled to described magnetic ring component, is configured to make described tripping coil dead electricity in response to the predetermined error conditions of described residual current detection signal at least.
According among the embodiment of the present utility model, described phase line fixed contact and zero line fixed contact are elementary as this magnetic ring component, and this magnetic ring component secondary is coupled to described signal processing circuit.
In a foundation embodiment of the present utility model; the electricity Wiring protection device also comprises reset circuit; it comprises the reset switch that is in normally open, and is configured to produce so that the control signal of described tripping coil energising in response to the closure of described reset switch.
In a foundation embodiment of the present utility model; the electricity Wiring protection device also comprises rectifier bridge; it carries out rectification to the voltage between described input phase terminal and the described input zero terminal, so that described tripping coil and the required voltage of described failure detector circuit work to be provided.
The electric Wiring protection device that foundation the utility model proposes has simple in structure, and cost is low, the advantage that realizes easily.It can occur to cause easily in output phase terminal and/or output zero terminal in the situation of fault current of dangerous electricity consumption, disconnects being electrically connected of electrical appliance and supply socket, protects electrical appliance user's personal safety.And the realization of above-mentioned functions does not need the people to participate in, and automatically finishes the detection holding function.
Description of drawings
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, other features, objects and advantages of the present utility model will become more apparent:
Fig. 1 shows the circuit theory diagrams according to electric Wiring protection device of the present utility model;
Fig. 2 shows the front view according to electric Wiring protection device of the present utility model;
Fig. 3 a shows the front view of the foundation electric Wiring protection device of the present utility model of removing base and bonnet;
Fig. 3 b shows the three-dimensional view of the foundation electric Wiring protection device of the present utility model of removing base and bonnet;
Fig. 4 shows the cartridge assemblies isometric exploded view;
Fig. 5 a shows the trip status view according to electric Wiring protection device of the present utility model;
Fig. 5 b shows the reset mode view according to electric Wiring protection device of the present utility model;
Fig. 6 shows the isometric exploded view according to electric Wiring protection device of the present utility model;
In the drawings, run through different diagrams, identical or similar Reference numeral represents characteristic of correspondence.
Embodiment
Fig. 1 shows the circuit theory diagrams according to electric Wiring protection device of the present utility model.As shown in Figure 1, electric Wiring protection device 100 comprises: phase conductor 110, zero line conductor 120, switching device 140, tripping coil 60, failure detector circuit 150 and reset circuit 160.
Zero line conductor 120 comprises input zero terminal 801, zero line moving contact 57, zero line fixed contact 55 and output zero terminal 52.Wherein, zero line fixed contact 55 is connected to output zero terminal 52; Zero line moving contact 57 is connected to input zero terminal 801.
Omitted gnd conductor in Fig. 1, those skilled in the art can be understood that, according among the embodiment of the present utility model, export ground wire terminal and are connected directly to the input ground wire terminal.
When switching device 140 is configured to be in primary importance so that described phase conductor 110, zero line conductor 120 are in conducting state, and when being in the second place so that described phase conductor 110, zero line conductor 120 are in off state.Particularly, in foundation this embodiment of the present utility model, switching device 140 is realized by phase line fixed contact 54, zero line fixed contact 55, phase line moving contact 56 and zero line moving contact 57.Particularly, switching device 140 is in primary importance and contacts corresponding to phase line moving contact 56 and phase line fixed contact 54, and zero line moving contact 57 contacts with zero line fixed contact 55, switching device 140 is in the second place and is separated corresponding to phase line moving contact 56 and phase line fixed contact 54, and zero line moving contact 57 is separated with zero line fixed contact 55.
Under the normality mode of operation of electric Wiring protection device, phase conductor 110, zero line conductor 120 are in conducting state, and namely phase line moving contact 56 and phase line fixed contact 54 contact, and zero line moving contact 57 contacts with zero line fixed contact 55.
Failure detector circuit 150 comprises residual current detection circuit and signal processing circuit.The residual current detection circuit is configured to detect the residual current of phase conductor 110 and zero line conductor 120.Particularly, residual current detection circuit 150 comprises two Current Mutual Inductance CT1 and CT2, phase conductor 110 and zero line conductor 120 form the elementary of Current Transmit 1 and CT2, secondary induction by Current Transmit 1 and CT2 generates the residual current detection signal, and this signal coupling is arrived signal processing circuit.
Signal processing circuit is coupled to the residual current detection circuit, is configured to produce control signal in response to the predetermined error conditions of residual current detection signal at least, and then makes tripping coil 60 dead electricity.
Particularly, signal processing circuit comprises control chip IC1 and field-effect transistor Q1 etc.The predetermined error conditions of residual current detection signal is to surpass a predetermined value, and the safety standard that this predetermined value is followed according to electric Wiring protection device and the detection sensitivity of corresponding device are determined.
As shown in Figure 1, electric Wiring protection device also comprises rectifier bridge DB, and it carries out rectification to the voltage between input phase terminal and the described input zero terminal, so that tripping coil and the required voltage of failure detector circuit work to be provided.
Although described particular circuit configurations according to an embodiment of the present utility model in conjunction with Fig. 1, those skilled in the art can be understood that the scope that the utility model is contained is not limited to this.For example reset circuit 160, failure detector circuit 150 and rectifier bridge DB can take other can realize configuration of the present utility model.
Fig. 2 shows the front view according to electric Wiring protection device of the present utility model.As shown in the figure, comprise power cord plug 8, opaque housing 1 and user load power line 9 according to electric Wiring protection device of the present utility model.Wherein, be provided with Test Switchboard 1403 and reset switch 1402 at opaque housing.
Fig. 3 a, 3b show respectively front view and the three-dimensional view of the foundation electric Wiring protection device 100 of the present utility model of removing base and bonnet.
Wherein, input plug power line 8 passes PVC sealing ply-yarn drill 10, enter housing after, be fixed on the base 2 by power line pressing plate 6.User's power line 9 is fixed in the loam cake 1 by pressing plate 6 after passing PVC sealing ply-yarn drill 10.Binding post 51,52,53 all is welded on the circuit board.Location hole 402 on the water proof ring 4 is on the cylinder boss 106 that is enclosed within on the loam cake 1.Strategic point iron 59 and iron in distress 61 are fixed together by two dovetail grooves.Release 58 spacing is that two muscle 6303 by magnetic ring component 63 limit.
Describing the ground wire input below in conjunction with 3a, 3b is connected with the inside of output.Input ground wire 802 in the power cord plug 8 passes the top of ground-fault interrupter printed substrate 68, is stuck in ground wire screens 6007 places on the bobbin, and then the pin 5101 with output ground wire terminal 51 is welded on the printed substrate.Thus, realize output ground wire terminal 51 and input being connected of ground wire terminal 802.
Fig. 4 shows the cartridge assemblies isometric exploded view.Being connected the phase line input with Fig. 4 below in conjunction with Fig. 3 a, 3b is connected with the inside of output.Shown in Fig. 3 a, phase line 803 1 ends in the power cord plug 8 penetrate in 6601 crotches of inputting in the phase line pressure line terminal 66, then firmly press down the crotch of terminal with nipper pliers, make it block the power line phase line, then use electric iron that phase line and terminal soldering are in the same place.Input phase line pressure line terminal 66 and phase line moving contact 56 roots are to be welded on together on the printed substrate 68; One end 5403 of phase line fixed contact 54 passes magnetic ring component 63 and is welded on the printed substrate 68 with output phase terminal 53.Magnetic ring component 63 comprises two Current Transmits 1 shown in Fig. 1 and CT2.
The zero line input is identical with the inner connecting way of exporting and phase line side.Particularly, input zero line pressure line terminal 67 and zero line moving contact 57 roots are to be welded on together on the printed substrate 68; One end 5503 of zero line fixed contact 55 passes magnetic ring component 63 and is welded on the printed substrate 68 with zero line phase terminal 52.
As shown in Figure 4, also comprise tripping coil 60 and release 58 according to electric Wiring protection device of the present utility model.
Wherein, in conjunction with Fig. 1, under the normality mode of operation, for example after power cord plug 8 was inserted in user's supply socket, power supply phase line 803 and zero-power line 801 were charged; After pressing reset button 1402, place the reset switch sheet 11 of its below to be in closure state, the reset circuit in the circuit is activated, and has electric current to flow through in the tripping coil 60.
Under test mode or fault state, failure detector circuit 150 (for example shown in Figure 1) makes tripping coil 60 dead electricity in response to the predetermined error conditions of the residual current of phase line fixed contact and zero line fixed contact.
In conjunction with Fig. 3 a, 3b, phase line moving contact 56, zero line moving contact 57 respectively with corresponding fixed contact 54,55 spaced, and can under the effect of release 58 deformation occur, thereby contact with corresponding fixed contact, when the effect of release 58 removes, return to corresponding fixed contact spaced.
Can also find out that from Fig. 4 also comprise static iron core 62 according to electric Wiring protection device of the present utility model, it is fixed on described tripping coil 60 inside.And release 58 comprises: release drive point 5801,5802, during with respect to described tripping coil 60 Linear-moving, release drive point 5801,5802 produces active forces to phase line moving contact 56 and described zero line moving contact 57 respectively at release 58.Release 58 also comprises dropout iron core (5803), and it extends in the described tripping coil 60.
Fig. 5 a shows the trip status view according to electric Wiring protection device of the present utility model, and Fig. 5 b shows the reset mode view according to electric Wiring protection device of the present utility model.
Shown in Fig. 5 b, when tripping coil 60 energising, form magnetic field.Dropout iron core 5803 is inhaled in the tripping coil 60, and is adjacent to described static iron core 62, and the release drive point 5801,5802 on the release 58 drives respectively phase line moving contact 56 and zero line moving contact 57 produces deformation, to contact with corresponding fixed contact.Particularly, static iron core one end 6201 is in 6102 holes that are riveted in 61 iron 1 in distress.Because dropout iron core 5803 and release 58 link together, so displacement of dropout iron core 5803, cause release 58 to move to tripping coil 60 directions, simultaneously, drive point 5801 and 5802 on the release 58 acts on respectively on the zero line moving contact cantilever 5701 of the phase line moving contact cantilever 5601 of phase line moving contact 56 and zero line moving contact 57, so moving contact links with release, so, electric contact 5401 on the electric contact 5602 of phase line moving contact 56 and the electric contact 5702 of zero line moving contact 57 and the phase line fixed contact 54 and the electric contact 5501 on the zero line fixed contact 55 contact, simultaneously, one end 5403 of phase line fixed contact 54 and zero line fixed contact 55,5503 all is to pass magnetic ring component to be welded on the printed substrate 68 with output phase terminal 53 and output zero terminal 52 respectively, so, when two pairs of contacts contact, just finished the electrical connection of input with output.
Shown in Fig. 5 a, when not having electric current to flow through in described tripping coil 60, magnetic field disappears.Because when reset mode; phase line moving contact 56 and zero line moving contact 57 are held by release 58 and are kept certain distortion; this moment, this confining force did not exist owing to the disappearance in magnetic field; thereby phase line moving contact 56 and zero line moving contact 57 can turn back to the home position; so release 58 and dropout iron core 5803 are under the effect of the recuperability of phase line moving contact 56 and zero line moving contact 57; to the direction motion away from tripping coil 60; electric contact 5602 on this moment phase line moving contact 56 and the zero line moving contact 57; 5702 and phase line fixed contact 54 and zero line fixed contact 55 on electric contact 5401; 5402 disconnect; realize the disjunction of input with output, effectively protected the safety of electrical appliance and the person.
Whether according to an embodiment of the present utility model, electric Wiring protection device also comprises working station indicator LED (referring to Fig. 1), and itself and tripping coil 60 are connected in parallel, to have electric current to flow through in the indication tripping coil.And electric Wiring protection device has opaque shell; and be provided with the transparent plastic article 13 that extends inwardly to described working station indicator at described shell so that the light of described working station indicator from described electric Wiring protection device outside as seen.Thus so that the position of working station indicator can change flexibly, to adapt to the circuit structure of enclosure.
Those skilled in the art will be understood that above-described embodiment all is exemplary and nonrestrictive.The different technologies feature that occurs in different embodiment can make up, to obtain beneficial effect.Those skilled in the art will be understood that and realize the embodiment of other variations of the embodiment that discloses on the basis of research accompanying drawing, specification and claims.In claims, term " comprises " does not get rid of other devices or step; Indefinite article " one " is not got rid of a plurality of; Term " first ", " second " are used for indicating title but not are used for representing any specific order.Any Reference numeral in the claim all should not be understood to the restriction to protection range.Some technical characterictic appears in the different dependent claims and does not mean that and these technical characterictics can not be made up to obtain beneficial effect.This patent covers literal all methods, device and the product of going up or falling into the scope of claims in doctrine of equivalents.
Subordinate list: accompanying drawing parts title
| Numbering | The parts title | Numbering | The |
| 1 | G12 line-connection |
802 | The power cord |
| 101 | Loam cake |
803 | The power cord |
| 102 | Loam cake wiring |
9 | The user |
| 103 | The loam cake |
901 | The power cord |
| 104 | Loam cake reset |
902 | The power cord |
| 105 | Loam cake test |
903 | The power cord |
| 106 | Loam cake water proof |
10 | PVC seals ply- |
| 107 | Loam cake ply-yarn drill location notch | 11 | The |
| 108 | Loam cake ply-yarn drill location notch | 1101 | Reset switch sheet contact |
| ? | ? | 1102 | Switch plate |
| 2 | |
12 | |
| 201 | Base trip |
1201 | Inner cap card an ancient unit of |
| 202 | Base trip |
1202 | The indicator |
| 3 | Tegillum | 1203 | The reset |
| 301 | Tegillum trip |
1204 | The test |
| 302 | Tegillum ply-yarn |
1205 | The test film screens |
| 4 | The water- |
13 | The indicator light light-guiding |
| 401 | Water proof ring ply-yarn |
14 | Tarpaulin |
| 402 | Waterproof |
1401 | The perforation of |
| 403 | Water proof ring |
1402 | The |
| 404 | Water proof ring ply-yarn |
1403 | The |
| 6 | The power |
15 | |
| 601 | Pressing plate trip |
16 | |
| 602 | The |
17 | |
| 7 | |
5 | |
| 8 | |
51 | Earth |
| 801 | The power cord plug zero |
5101 | The earth terminal pin |
[0058]?
| 52 | The output zero terminal | 5901 | Strategic point iron 2 stiff ends |
| 5201 | Output zero terminal pin | 5902 | Strategic point iron 2 centre bores |
| 53 | The output phase terminal | 60 | Tripping coil |
| 5301 | Output phase terminal pin | 6001 | The moving contact fixing hole |
| 54 | The phase line fixed contact | 6002 | The moving contact fixing hole |
| 5401 | Phase line fixed contact electric contact | 6003 | The fixed contact fixing hole |
| 5402 | Phase line fixed contact stiff end 1 | 6004 | The fixed contact fixing hole |
| 5403 | Phase line fixed contact stiff end 2 | 6005 | The perforation of dropout iron core |
| 55 | The zero line fixed contact | 6006 | The tripping coil grab |
| 5501 | Zero line fixed contact electric contact | 6007 | The ground wire screens |
| 5502 | Zero line fixed contact stiff end 1 | 61 | Strategic point iron 1 |
| 5503 | Zero line fixed contact stiff end 2 | 6101 | Strategic point iron 1 is dovetail groove fixedly |
| 56 | The phase line moving contact | 6102 | Strategic point iron 1 iron core riveted holes |
| 5601 | Phase line moving contact cantilever | 62 | Static iron core |
| 5602 | Phase line moving contact electric contact | 6201 | Static iron core riveted joint |
| 5603 | Phase line moving contact stiff end | 63 | Magnetic ring component |
| 57 | The zero line moving contact | 6301 | Dropout iron core stopper slot |
| 5701 | Zero line moving contact cantilever | 6302 | The perforation of phase line fixed contact |
| 5702 | Zero line moving contact electric contact | 6303 | The perforation of zero line fixed contact |
| 5703 | Zero line moving contact stiff end | 64 | The output end wiring screw |
| 58 | Release | 65 | Output end wiring four directions sheet |
| 5801 | The release drive point | 66 | Input phase line pressure line terminal |
| 5802 | The release drive point | 6601 | Zero line pressure line terminal card line end |
| 5803 | The dropout iron core | 67 | Input zero line pressure line terminal |
| 5804 | The release head | 6701 | Zero line pressure line terminal card line end |
| 5805 | Dropout iron core tail end | 68 | Printed substrate |
| 59 | Strategic point iron 2 | ? | ? |
Claims (8)
1. an electric Wiring protection device is characterized in that, comprising:
Input phase terminal (803), input zero terminal (801), input ground wire terminal (802);
Output phase terminal (53), output zero terminal (52), output ground wire terminal (51);
Phase line fixed contact (54) is connected to described output phase terminal (53);
Zero line fixed contact (55) is connected to described output zero terminal (52);
Phase line moving contact (56) is connected to described input phase terminal (803);
Zero line moving contact (57) is connected to described input zero terminal (801);
And wherein, described output ground wire terminal (51) is connected to described input ground wire terminal (802); Described electric Wiring protection device also comprises:
Tripping coil (60) under the normality mode of operation, has electric current to flow through in the described tripping coil;
Failure detector circuit (150); Be configured in response to the predetermined error conditions of the residual current of described phase line fixed contact and zero line fixed contact and make described tripping coil (60) dead electricity;
Release (58), it is constructed in response to the curent change in described tripping coil (60) with respect to described tripping coil (60) Linear-moving;
Wherein, described phase line moving contact (56), zero line moving contact (57) are spaced with corresponding fixed contact (54,55) respectively, and can under the effect of described release deformation occur, thereby contact with corresponding fixed contact, and when the effect of described release removes, return to corresponding fixed contact spaced.
2. electric Wiring protection device according to claim 1 is characterized in that, also comprises:
Static iron core (62), it is fixed on described tripping coil (60) inside;
And described release (58) comprising:
Release drive point (5801,5802), during with respect to described tripping coil (60) Linear-moving, described release drive point produces active force to described phase line moving contact (56) and described zero line moving contact (57) at described release;
Dropout iron core (5803), it extends in the described tripping coil (60);
Wherein, when described tripping coil (60) was switched on, described dropout iron core was inhaled in the described tripping coil, and was adjacent to described static iron core (62), described release drive point drives described phase line moving contact and described zero line moving contact produces deformation, to contact with corresponding fixed contact;
When not having electric current to flow through in described tripping coil (60), described dropout iron core moves to the direction away from described tripping coil under the effect of described phase line moving contact and described zero line moving contact recuperability.
3. electric Wiring protection device according to claim 1 is characterized in that, also comprises:
Working station indicator, whether itself and described tripping coil (60) are connected in parallel, have electric current to flow through in the described tripping coil to indicate.
4. electric Wiring protection device according to claim 3; it is characterized in that; described electric Wiring protection device has opaque shell; and be provided with the transparent plastic article that extends inwardly to described working station indicator at described shell so that the light of described working station indicator from described electric Wiring protection device outside as seen.
5. electric Wiring protection device according to claim 1 is characterized in that, described failure detector circuit (150) comprising:
Magnetic ring component (63), described phase line fixed contact and zero line fixed contact extend into described magnetic ring component, the described magnetic ring component output residual current detection signal relevant with the residual current in described phase line fixed contact and the zero line fixed contact;
Signal processing circuit is coupled to described magnetic ring component, is configured to make described tripping coil dead electricity in response to the predetermined error conditions of described residual current detection signal at least.
6. electric Wiring protection device according to claim 5 is characterized in that, described phase line fixed contact and zero line fixed contact are elementary as this magnetic ring component, and this magnetic ring component secondary is coupled to described signal processing circuit.
7. electric Wiring protection device according to claim 1 is characterized in that, also comprises:
Reset circuit (160), it comprises the reset switch that is in normally open, and is configured to produce so that the control signal of described tripping coil energising in response to the closure of described reset switch.
8. electric Wiring protection device according to claim 1 is characterized in that, also comprises:
Rectifier bridge, it carries out rectification to the voltage between described input phase terminal and the described input zero terminal, so that described tripping coil and the required voltage of described failure detector circuit work to be provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102005 CN203243021U (en) | 2013-03-06 | 2013-03-06 | An electric connecting wire protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320102005 CN203243021U (en) | 2013-03-06 | 2013-03-06 | An electric connecting wire protection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243021U true CN203243021U (en) | 2013-10-16 |
Family
ID=49320280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320102005 Expired - Lifetime CN203243021U (en) | 2013-03-06 | 2013-03-06 | An electric connecting wire protection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243021U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602508A (en) * | 2015-10-19 | 2017-04-26 | 苏州益而益电器制造有限公司 | Leakage protector |
| CN113740496A (en) * | 2021-09-24 | 2021-12-03 | 北京帮安迪信息科技股份有限公司 | Four-in-one gas detection terminal electric circuit protection device |
-
2013
- 2013-03-06 CN CN 201320102005 patent/CN203243021U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602508A (en) * | 2015-10-19 | 2017-04-26 | 苏州益而益电器制造有限公司 | Leakage protector |
| CN106602508B (en) * | 2015-10-19 | 2020-07-03 | 苏州益而益电器制造有限公司 | Leakage protector |
| CN113740496A (en) * | 2021-09-24 | 2021-12-03 | 北京帮安迪信息科技股份有限公司 | Four-in-one gas detection terminal electric circuit protection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |