CN201022066Y - A current leakage protector - Google Patents
A current leakage protector Download PDFInfo
- Publication number
- CN201022066Y CN201022066Y CNU2006201605765U CN200620160576U CN201022066Y CN 201022066 Y CN201022066 Y CN 201022066Y CN U2006201605765 U CNU2006201605765 U CN U2006201605765U CN 200620160576 U CN200620160576 U CN 200620160576U CN 201022066 Y CN201022066 Y CN 201022066Y
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- CN
- China
- Prior art keywords
- protective device
- moving contact
- earth leakage
- housing
- leakage protective
- Prior art date
- 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 - Fee Related
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Abstract
A leakage protector comprises a casing, a leakage detecting circuit, and a tripping device, wherein the casing is provided with a fixed contact and a moving contact fitting together inside, and the tripping device controls the contact between the moving contact and the fixed contact. The tripping device comprises a reset push button with an elastic resetting-structure, a fastening contact pin driven by the reset push button and a relay pulling the free end of the fastening contact pin, wherein the middle section of the fastening contact pin forms a buckling section which crosses a bridging beam connected with the moving contact and is fastened on the bridging beam, and the moving contact is arranged in an elastic element. The utility model has the advantages of simple conformation, short response time of action and strong security.
Description
Technical field
The utility model relates to a kind of earth leakage protective device, relates in particular to a kind of mechanical electromagnetism combined type earth leakage protective device.
Background technology
Earth leakage protective device of the prior art, as China Patent No. is the ZL00233169.1 utility model patent, a kind of earth leakage protective socket is disclosed, comprise top cover, middle supporting plate and bottom three parts, top cover is provided with power output socket, leakage tests button and reset key button, one metal mounting panel is installed between described top cover and middle supporting plate, and the metal mounting panel is provided with grounding contact, and corresponding with the earth jack of described top cover power output socket; Also be provided with an earthing screw on the described metal mounting panel; Both sides are placed with the pair of metal conductor in the supporting plate in the middle of described, and an electrical contact is all arranged on each metallic conductor; Between described middle supporting plate and described bottom, put a circuit board is arranged; Described circuit board is provided with differential differentiating transformer, coil and parcel iron core, reset key guidance set in coil; There is a central perforation upper end of described reset key guidance set, and there is an opening bottom; A pair of movably elastic sheet metal is arranged on bottom end opening, an electrical contact is all arranged on each elastic sheet metal, and corresponding with the electrical contact of described metallic conductor; Vertically run through described metal mounting panel, central perforation and bottom opening in described reset key guidance set inside one guiding lock is arranged; The bottom of guiding lock is a cone, near the bottom one lock slots is arranged, and top is with a spring, and embeds in the described reset key button; Also have a lock buckling part on described reset key guidance set bottom end opening, described lock buckling part is a type, and there is a medium pore centre of lock buckling part, and putting between the sidewall of described reset key guidance set and lock buckling part has a spring.The structure of above-mentioned patent is too complicated, and the operate time after the electric leakage is longer.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of simple in structure, operate time short earth leakage protective device.
A kind of earth leakage protective device that provides according to the utility model; comprise a housing; one is installed in an electric-leakage detection circuit and the tripping mechanism by described electric-leakage detection circuit control in the described housing; be provided with the fixed contact and the moving contact that cooperatively interact in the described housing; described tripping mechanism is controlled described moving contact and is contacted with described fixed contact; it is characterized in that: described tripping mechanism comprises that one has the reset button of elastic reset structure; the one clamping sheet and that is promoted by described reset button spurs the free-ended relay of described clamping sheet; the middle part of described clamping sheet is formed with a kink; described kink passes the crossbeam that is connected with described moving contact; and be connected on the described crossbeam, described moving contact is installed on the elastic component.
A kind of earth leakage protective device that provides according to the utility model also has following attached technical characterictic:
Be formed with a through hole on the described crossbeam, the kink of described clamping sheet passes described through hole, and is connected on the diapire of described through hole.
The slide core capital end of described relay is provided with one sliding mouthful, the free end of described clamping sheet passes described sliding mouthful, and in described sliding mouthful, slide, described relay is by described electric-leakage detection circuit control break-make, and the glide direction of its movable stem stem direction of motion and described clamping sheet is perpendicular.
Be provided with a PCB circuit board in the described housing, described electric-leakage detection circuit, described tripping mechanism and described fixed contact, described moving contact are installed on the described PCB circuit board.
Be fixed with a base on the described PCB circuit board, described reset button is installed on the described base, and the movable end of described reset button passes the through hole on the described housing, and part dew is put outside described housing.
Be provided with the activity template that links with described moving contact, the top of described activity template is fixed with an indicator collet, and described indicator collet is corresponding with the indication window on the described housing.
Described electric-leakage detection circuit comprises a current unbalance detecting sensor, a processing controls chip and circuits for triggering, and described circuits for triggering are controlled described relay on-off.
Described electric-leakage detection circuit also is connected with a sense switch, and described sense switch matches with button on being installed in described housing.
Plug and/or socket are installed on the described housing.
Plug and/or binding post are installed on the described housing.
A kind of earth leakage protective device that provides according to the utility model compared with prior art has following advantage: the utility model is by an end of the drop-down clamping sheet of relay; the kink of clamping sheet is connected on the crossbeam that connects moving contact; when reset button resets under elastic reaction; promptly moving contact can be contacted with fixed contact; relay outage back discharges the free end of clamping sheet; moving contact breaks away from fixed contact under the effect of elastic component; therefore; structure of the present utility model is comparatively simple; the response time of action is shorter, safe.
Description of drawings
Fig. 1 is that master of the present utility model looks schematic diagram.
Fig. 2 is the front view of tripping mechanism in the utility model.
Fig. 3 is the left view that tripping mechanism discharges moving contact in the utility model.
Fig. 4 is the left view of tripping mechanism adhesive moving contact in the utility model.
Fig. 5 is that cutaway view is looked on the left side of tripping mechanism release moving contact in the utility model.
Fig. 6 is that cutaway view is looked on the left side of tripping mechanism adhesive moving contact in the utility model.
Fig. 7 is the front view of moving contact and crossbeam in the utility model.
Embodiment
Referring to Fig. 2 to Fig. 7, in a kind of embodiment that the utility model provides, comprise that a housing 1, is installed in an electric-leakage detection circuit and the tripping mechanism by described electric-leakage detection circuit control in the described housing 1, described electric-leakage detection circuit comprises a current unbalance detecting sensor 61, a processing controls chip and circuits for triggering.Described current unbalance detecting sensor 61 is an inductance coil, and two power lines of two power lines penetrate wherein.At this moment, insert load and normally use, the electric current of two power lines balances each other, and transducer 61 detects less than signal.When electric leakage produces, cause the current imbalance of moment, this moment, transducer 61 will be sensed, the signal that produces is transferred to described processing controls chip, and the processing controls chip compares, produces control signal, the break-make of control triggering electric circuit after the processing and amplifying signal.Described processing controls chip and circuits for triggering all are the prior aries of comparative maturity, and for example, circuits for triggering adopt controllable silicon or the like.Therefore, the concrete composition for foregoing circuit repeats no more herein.
Referring to Fig. 2 to Fig. 7, the main distinction of the utility model and prior art is, be provided with the fixed contact 11 and the moving contact 12 that cooperatively interact in the described housing 1, described tripping mechanism is controlled described moving contact 12 and is contacted with described fixed contact 11, described tripping mechanism comprises that one has the reset button 2 of elastic reset structure, the one clamping sheet 3 and that is promoted by described reset button 2 spurs described clamping sheet 3 free-ended relays 4, described elastic reset structure is a spring 22, its movable end 21 that can promote described reset button 2 resets, and described clamping sheet 3 is installed on the described movable end 21.The middle part of described clamping sheet 3 is formed with a kink 31, and described kink 31 passes the crossbeam 13 that is connected with described moving contact 12, and is connected on the described crossbeam 13, and described moving contact 12 is installed on the elastic component 14.Described kink 31 is a bending structure that tilts, and the clamping power between itself and the described crossbeam 13 is far smaller than the elastic force of described elastic component 14.
Referring to Fig. 5 and Fig. 6, described relay 4 electric after, it is the free end of the described clamping sheet 3 of pulling downwards, at this moment, press described reset button 2, described reset button 2 push card contact pin 3 motions, kink 31 on the described clamping sheet 3 is connected on the described crossbeam 13, unclamp described reset button 2, the movable end 21 of reset button 2 resets under the effect of spring 22, thereby spurs described clamping sheet 3 motions.Because the free end of described clamping sheet 3 is held downwards by described relay 4, and kink 31 is connected on the described crossbeam 13, and therefore, the athletic meeting of clamping sheet 3 drives described moving contact 12 motions, thereby moving contact 12 is contacted with fixed contact 11.
When leaking electricity, circuits for triggering make described relay 4 outages, discharge the free end of described clamping sheet 3, and at this moment, the kink 31 of described clamping sheet 3 and the clamping power of crossbeam 13 are far smaller than the elastic force of described elastic component 14.Described moving contact 12 breaks away from described fixed contact 11 under the effect of elastic component 14, thereby cuts off the electricity supply.
Referring to Fig. 5 and Fig. 7, in the foregoing description that the utility model provides, be formed with a through hole 131 on the described crossbeam 13, the kink 31 of described clamping sheet 3 passes described through hole 131, and is connected on the diapire of described through hole 131.
Referring to Fig. 2 and Fig. 6, in the foregoing description that the utility model provides, movable stem stem 41 tops of described relay 4 are provided with one sliding mouthful 42, the free end of described clamping sheet 3 passes described sliding mouthful 42, and in described sliding mouthful 42, slide, described relay 4 is by described electric-leakage detection circuit control break-make, and the glide direction of its movable stem stem 41 directions of motion and described clamping sheet 3 is perpendicular.
Referring to Fig. 3 and Fig. 4, in the foregoing description that the utility model provides, described elastic component 14 is that elastic conducting strip bending forms.
Referring to Fig. 3 and Fig. 4, in the foregoing description that the utility model provides, be provided with a PCB circuit board 5 in the described housing 1, described electric-leakage detection circuit, described tripping mechanism and described fixed contact, described moving contact are installed on the described PCB circuit board 5.All parts all are installed on the circuit board 5, make that the structure of whole device is compact more, also make things convenient for the connection and the control of circuit simultaneously, improved sensitivity.
Referring to Fig. 1, Fig. 3 and Fig. 5, in the foregoing description that the utility model provides, be fixed with a base 51 on the described PCB circuit board 5, described reset button 2 is installed on the described base 51, the movable end 21 of described reset button 2 passes the through hole 16 on the described housing, and part dew is put outside described housing 1.
Referring to Fig. 1, Fig. 4 and Fig. 6, in the foregoing description that the utility model provides, be provided with the activity template 15 that links with described moving contact 12, the top of described activity template 15 is fixed with an indicator collet 16, and described indicator collet 16 is corresponding with the indication window 17 on the described housing 1.When described moving contact 12 and described fixed contact 11 contacted, described indicator collet 16 will be positioned at described indication window 17 places, display working condition.
Referring to Fig. 1, Fig. 3 and Fig. 5, in the foregoing description that the utility model provides, described electric-leakage detection circuit also is connected with a sense switch 62, and described sense switch 62 matches with button 18 on being installed in described housing 1.Press sense switch 62 and just can give the electric leakage signal of a simulation, thereby whether judgment device can operate as normal.Simultaneously, also can be used as control switch.
Referring to Fig. 1, in the foregoing description that the utility model provides, on the described housing 1 plug and/or socket are installed.Can constitute an earth leakage protective socket, the convenient use.Certainly, also plug and/or binding post can be installed on the described housing 1 of the present utility model.
Above preferred embodiment only supplies the usefulness of explanation the utility model, and is not to restriction of the present utility model.Those of ordinary skill in the art under guiding, also can make various distortion and conversion, so all equivalent technical solutions all belongs to protection range of the present utility model in not breaking away from spirit and scope of the present utility model.
Claims (10)
1. earth leakage protective device; comprise a housing (1); one is installed in an electric-leakage detection circuit and the tripping mechanism by described electric-leakage detection circuit control in the described housing (1); be provided with the fixed contact (11) and the moving contact (12) that cooperatively interact in the described housing (1); described tripping mechanism is controlled described moving contact (12) and is contacted with described fixed contact (11); it is characterized in that: described tripping mechanism comprises that one has the reset button (2) of elastic reset structure; the one clamping sheet (3) and that is promoted by described reset button (2) spurs the free-ended relay of described clamping sheet (3) (4); the middle part of described clamping sheet (3) is formed with a kink (31); described kink (31) passes the crossbeam (13) that is connected with described moving contact (12); and be connected on the described crossbeam (13), described moving contact (12) is installed on the elastic component (14).
2. a kind of earth leakage protective device as claimed in claim 1 is characterized in that: be formed with a through hole (131) on the described crossbeam (13), the kink (31) of described clamping sheet (3) passes described through hole (131), and is connected on the diapire of described through hole (131).
3. a kind of earth leakage protective device as claimed in claim 1; it is characterized in that: movable stem stem (41) top of described relay (4) is provided with one sliding mouthful (42); the free end of described clamping sheet (3) passes described sliding mouthful (42); and in described sliding mouthful (42), slide; described relay (4) is by described electric-leakage detection circuit control break-make, and the glide direction of its movable stem stem (41) direction of motion and described clamping sheet (3) is perpendicular.
4. a kind of earth leakage protective device as claimed in claim 1; it is characterized in that: be provided with a PCB circuit board (5) in the described housing (1), described electric-leakage detection circuit, described tripping mechanism and described fixed contact, described moving contact are installed on the described PCB circuit board (5).
5. a kind of earth leakage protective device as claimed in claim 4; it is characterized in that: be fixed with a base (51) on the described PCB circuit board (5); described reset button (2) is installed on the described base (51); the movable end (21) of described reset button (2) passes the through hole (16) on the described housing, and part dew is put outside described housing (1).
6. a kind of earth leakage protective device as claimed in claim 1; it is characterized in that: be provided with the activity template (15) that links with described moving contact (12); the top of described activity template (15) is fixed with an indicator collet (16), and described indicator collet (16) is corresponding with the indication window (17) on the described housing (1).
7. a kind of earth leakage protective device as claimed in claim 1 is characterized in that: described electric-leakage detection circuit comprises a current unbalance detecting sensor (61), a processing controls chip and circuits for triggering, and described circuits for triggering are controlled described relay on-off.
8. a kind of earth leakage protective device as claimed in claim 1 is characterized in that: described electric-leakage detection circuit also is connected with a sense switch (62), and described sense switch (62) matches with button on being installed in described housing (1).
9. a kind of earth leakage protective device as claimed in claim 1 is characterized in that: described housing is equipped with plug and/or socket on (1).
10. a kind of earth leakage protective device as claimed in claim 1 is characterized in that: described housing is equipped with plug and/or binding post on (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201605765U CN201022066Y (en) | 2006-11-30 | 2006-11-30 | A current leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201605765U CN201022066Y (en) | 2006-11-30 | 2006-11-30 | A current leakage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022066Y true CN201022066Y (en) | 2008-02-13 |
Family
ID=39089479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201605765U Expired - Fee Related CN201022066Y (en) | 2006-11-30 | 2006-11-30 | A current leakage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022066Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection plug |
-
2006
- 2006-11-30 CN CNU2006201605765U patent/CN201022066Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection plug |
| CN104143736B (en) * | 2014-07-15 | 2017-05-24 | 东莞市永晟电线科技股份有限公司 | Electric leakage protection plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20131130 |