CN204067738U - A kind of leakage protecting plug with ground wire abnormity protection function - Google Patents
A kind of leakage protecting plug with ground wire abnormity protection function Download PDFInfo
- Publication number
- CN204067738U CN204067738U CN201420202529.7U CN201420202529U CN204067738U CN 204067738 U CN204067738 U CN 204067738U CN 201420202529 U CN201420202529 U CN 201420202529U CN 204067738 U CN204067738 U CN 204067738U
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- China
- Prior art keywords
- ground wire
- contact
- fixed contact
- moving contact
- transverse arm
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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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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 4
- 238000004080 punching Methods 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model discloses a kind of leakage protecting plug with ground wire abnormity protection function, comprise that ground wire is quiet, moving contact, zero line is quiet, moving contact, and live wire is quiet, moving contact, pedestal, trip gear, transverse arm and reset button; Described transverse arm and trip gear are arranged in the cavity of described pedestal, and described trip gear is flexibly connected with the first hole of transverse arm; Described reset button activity is inserted in transverse arm centre bore; Described ground wire fixed contact snaps in the front groove of described pedestal, and described zero line and live wire fixed contact snap in the lateral groove of pedestal both sides respectively; The head contact of described ground wire moving contact is relative with ground wire fixed contact through the second hole of transverse arm; Described zero line moving contact and live wire moving contact snap in the groove relative with corresponding fixed contact of pedestal both sides respectively, the arc raised line that described ground wire moving contact has punching press to be formed.The utility model, by raised line and trip gear, when ground connection abnormal condition causes electric appliance casing charged, can be cut off the electricity supply, ensure personal safety.
Description
Technical field
The utility model relates to electric security protector device field, particularly relates to a kind of leakage protecting plug with ground wire abnormity protection function.
Background technology
Existing leakage protecting plug, generally comprises phase line, zero line and ground wire, and plays the effect of ground protection by ground wire.But this plug just can shield when the ground wire of ground protection is at real reliable ground wire; and under ground connection abnormal condition; such as ground wire abnormal charged (reason that may cause is as power supply wiring mistake, the reason such as fiery ground wire connects instead, ground wire fault is charged) and send a telegraph device outer casing electrification, does not have power-off protection function.In addition, existing leakage protecting plug, the parts such as mounting spring on ground wire contact, play cushioning effect usually, and make the mounting process of plug complicated like this, part consumption is many, and cost is high.
Summary of the invention
The technical problem that the utility model mainly solves is to provide a kind of leakage protecting plug with ground wire abnormity protection function, and part is few, easy for installation, and cost is low, and in the abnormal charged situation of ground wire, still can have the effect of power-off protection.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: provide a kind of leakage protecting plug with ground wire abnormity protection function, comprising: ground wire fixed contact, ground wire moving contact, zero line fixed contact, zero line moving contact, live wire fixed contact, live wire moving contact, pedestal, trip gear, transverse arm and reset button; Described transverse arm and described trip gear are arranged in the cavity of described pedestal, and described trip gear is flexibly connected with the first hole of described transverse arm; Described reset button activity is inserted in the centre bore of described transverse arm; The head contact of described ground wire fixed contact snaps in the front groove of described pedestal, and the head contact of described ground wire moving contact is relative with the head contact of described ground wire fixed contact through the second hole of described transverse arm; The head contact of described zero line fixed contact and described live wire fixed contact snaps in the lateral groove of described pedestal both sides respectively, and described zero line moving contact and the head contact of described live wire moving contact snap in the relative groove of its corresponding fixed contact in pedestal both sides respectively; Described ground wire moving contact there is raised line.
In the utility model preferred embodiment, described reset button comprises release link and back-moving spring, and described back-moving spring is enclosed within described release link, and described release link has snap fit.Reset button, under the cooperation of back-moving spring, controls the rising of transverse arm by release link and moves down, thus controls the closed of three pairs of contacts and disconnect, easy to use.
In the utility model preferred embodiment, described trip gear comprises coil, iron core, dropout spring and snap close, described dropout spring fitting is in the centre bore of described coil, and one end of described iron core is inserted in the centre bore of described coil, and the other end snaps in the respective grooves of described snap close; Described snap close inserts in the first hole of described transverse arm, for blocking the snap fit in described release link.Under electric leakage state, the coil electricity in trip gear, iron core adhesive, snap close and reset button are threaded off, and switch circuit breaking, earth leakage protective is highly sensitive.
In the utility model preferred embodiment, described ground wire fixed contact, live wire fixed contact are connected with earth pin, zero line pin and live prong spot welding by power line respectively with zero line fixed contact.
In the utility model preferred embodiment, described earth pin, zero line pin and live prong are all fixed on base plate.
In the utility model preferred embodiment, described leakage protecting plug also comprises zero sequence current mutual inductor, and described live wire fixed contact and zero line fixed contact pass the centre bore of described zero sequence current mutual inductor.
In the utility model preferred embodiment, described leakage protecting plug also comprises current transformer, and described ground wire moving contact is through the centre bore of described current transformer, and the afterbody of described ground wire moving contact snaps in the stern notch of described pedestal.
In the utility model preferred embodiment, described leakage protecting plug also comprises wiring board, and described wiring board is positioned at above described release pedestal, and described wiring board is provided with reset button jack and preformed hole.
In the utility model preferred embodiment, the afterbody of described live wire fixed contact and zero line fixed contact passes the preformed hole of described wiring board, and is connected by connecting line and power line soldering.
The beneficial effects of the utility model are: a kind of leakage protecting plug with ground wire abnormity protection function of the utility model; by the raised line at ground wire moving contact upper punch swaging camber; play the effect of elastic buffer; make the ground wire contact of plug prior to the contact closure of live wire and zero line; play ground protection effect, and when ground wire leaks electricity extremely, by trip gear, reset button is threaded off; after disconnect in the contact of live wire and zero line, reach earth leakage protective effect.The utility model structure is simple, and raised line is structure as a whole with ground fixed contact, and easy to prepare, economize in raw materials, cost is low; When the utility model sends a telegraph device outer casing electrification under ground connection abnormal condition, can cut off the electricity supply, thus ensure personal safety.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of leakage protecting plug with ground wire abnormity protection function of the utility model;
Fig. 2 is the decomposing schematic representation of shown leakage protecting plug;
Fig. 3 is the front view figure of shown transverse arm;
Fig. 4 is the upward view of shown transverse arm;
In accompanying drawing, the mark of each parts is as follows: 1. earth pin, 2. zero line pin, 3. live prong, 4. ground wire fixed contact, 5. zero line fixed contact, 6. live wire fixed contact, 7. zero sequence current mutual inductor, 8. base plate, 9. release pedestal, 10. transverse arm, 11. snap closes, 12. ground wire moving contacts, 13. raised lines, 14. zero line moving contacts, 15. live wire moving contacts, 16. wiring boards, 17. reset button, 18. back-moving springs, 19. release links, 20. snap fits, 21. coils.22. iron cores, 23. dropout springs, 24. current transformers, 25. power lines, 26. trip gears, 101. first holes, 102. second holes, 103 transverse arm centre bores, 901. base cavity, groove before 902. pedestals, 903. pedestal lateral grooves, 904. pedestal lateral grooves, 905. pedestal stern notches.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
Refer to accompanying drawing, embodiment of the present utility model comprises:
With a leakage protecting plug for ground wire abnormity protection function, comprise as lower component:
Earth pin 1, zero line pin 2, live prong 3, ground wire fixed contact 4, ground wire moving contact 12, zero line fixed contact 5, zero line moving contact 14, live wire fixed contact 6, live wire moving contact 15, zero sequence current mutual inductor 7, base plate 8, release pedestal 9, trip gear 26, transverse arm 10, wiring board 16, reset button 17 summation current transformer 24;
Described transverse arm 10 and described trip gear 26 are arranged in the cavity 901 of described pedestal 9, and described trip gear 26 is flexibly connected with the first hole 101 of described transverse arm 10;
Described ground wire fixed contact 4, zero line fixed contact 5 are connected with the earth pin 1 be positioned on described base plate, zero line pin 2 and live prong 3 spot welding by power line 25 respectively with live wire fixed contact 6; The head contact of described ground wire fixed contact 4 snaps in the front groove 902 of described pedestal 9 head, the head contact of described zero line fixed contact 5 and live wire fixed contact 6 all through the centre bore of described zero sequence current mutual inductor 7, and snaps in the lateral groove 904 and 903 of described pedestal 9 both sides respectively; The afterbody of described live wire fixed contact 6 and zero line fixed contact 5 passes the preformed hole of described wiring board 16, and is connected by connecting line and power line 25 soldering; Described ground wire moving contact 12 is through described current transformer 24, and the head contact of ground wire moving contact 12 is relative with the head contact of described ground wire fixed contact 4 through the second hole of described transverse arm 10, and its afterbody snaps in stern notch 905 internal fixtion of described pedestal 9; Described zero line moving contact 14 and the head contact of live wire moving contact 15 snap in the relative groove of its corresponding fixed contact in pedestal 9 both sides respectively;
Described reset button 17 comprises release link 19 and back-moving spring 18, described back-moving spring 18 is enclosed within described release link 19, described release link 19 there is snap fit 20, described release link 19 is inserted in the centre bore 103 of described transverse arm 10 through the reset button hole activity on described wiring board 16, promote transverse arm 10 to move up and down, to control described three, (the dynamic and static contact of ground wire is comprised to dynamic and static contact; The dynamic and static contact of live wire; The dynamic and static contact of zero line) disconnection with closed;
Described trip gear 26 comprises coil 21, iron core 22, dropout spring 23 and snap close 11, described dropout spring 23 is arranged in the centre bore of described coil 21, one end of described iron core 22 is inserted in the centre bore of described coil 21, and the other end snaps in the respective grooves of described snap close 11; Described snap close 11 inserts in the first hole 101 of described transverse arm 10 from the inner chamber of described pedestal 9, for blocking the snap fit 20 in described release link 19.
Described ground wire moving contact 12 is provided with raised line 13, in the present embodiment, described raised line 13 is the arc buffering parts formed by the punching press of described ground wire moving contact 12, the contact internal walls of the arc apex of described arc raised line 13 and the first hole 101 of described transverse arm 10, and play the effect of resiliency supported, the dynamic and static contact controlling described ground wire is early than the dynamic and static contact closure of described live wire and zero line, and the dynamic and static contact being later than described live wire and zero line disconnects.
The operation principle of the leakage protecting plug of above-mentioned band ground wire abnormity protection function is:
Press reset button 17, back-moving spring 18 compresses, release link 19 stretches in the centre bore 103 of transverse arm 10, snap close 11 catches on the bayonet socket 20 in release link 19, after loosing one's grip, back-moving spring 18 stretches and drives transverse arm 10 up, make three groups of dynamic and static closings of contact, due to the contact internal walls of the arc apex of the raised line 13 on ground moving contact 12 and the first hole 101 of described transverse arm 10, play the effect of elastic support, impel ground wire moving contact 12 to close prior to live wire moving contact 15 and zero line moving contact 14, now, contact position is in " 1 " position, makes circuit ON; When there is electric leakage and leakage current exceedes set point, coil 21 is energized, iron core 22 adhesive, snap fit 20 in snap close 11 and release link 19 is threaded off, and now reset button 17 moves down, and transverse arm 10 is freely descending, three groups of contacts are upspring under self back pressure effect, and contact is disconnected.During disconnection, because the raised line 13 on ground moving contact 12 has elastic buffer effect, make ground moving contact 12 be later than live wire moving contact 15 and zero line moving contact 14 disconnects, contact position is in " 0 " position, now circuit disconnects, and plays earth leakage protective effect.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. the leakage protecting plug with ground wire abnormity protection function, it is characterized in that, comprising: ground wire fixed contact (4), ground wire moving contact (12), zero line fixed contact (5), zero line moving contact (14), live wire fixed contact (6), live wire moving contact (15), release pedestal (9), trip gear (26), transverse arm (10) and reset button (17); Described transverse arm (10) and described trip gear (26) are arranged in the cavity (901) of described release pedestal (9), and described trip gear (26) is flexibly connected with the first hole (101) of described transverse arm (10); Described reset button (17) activity is inserted in the centre bore (103) of described transverse arm (10); The head contact of described ground wire fixed contact (4) snaps in the front groove (902) of described release pedestal (9), and the head contact of described ground wire moving contact (12) is relative with the head contact of described ground wire fixed contact (4) through the second hole (102) of described transverse arm (10); The head contact of described zero line fixed contact (5) and described live wire fixed contact (6) snaps in the lateral groove (904,903) of described release pedestal (9) both sides respectively, and described zero line moving contact (14) and the head contact of described live wire moving contact (15) snap in the relative groove of its corresponding fixed contact in release pedestal (9) both sides respectively; Described ground wire moving contact (12) there is raised line (13).
2. the leakage protecting plug of band ground wire abnormity protection function according to claim 1; it is characterized in that; described reset button (17) comprises release link (19) and back-moving spring (18); described back-moving spring (18) is enclosed within described release link (19), described release link (19) has snap fit (20).
3. the leakage protecting plug of band ground wire abnormity protection function according to claim 2, it is characterized in that, described trip gear (26) comprises coil (21), iron core (22), dropout spring (23) and snap close (11), described dropout spring (23) is arranged in the centre bore of described coil (21), one end of described iron core (22) is inserted in the centre bore of described coil (21), and the other end snaps in the respective grooves of described snap close (11); Described snap close (11) inserts in the first hole (101) of described transverse arm (10), for blocking the snap fit (20) of described release link (19).
4. the leakage protecting plug of band ground wire abnormity protection function according to claim 1; it is characterized in that, described ground wire fixed contact (4), live wire fixed contact (6) and zero line fixed contact (5) are connected with earth pin (1), zero line pin (2) and live prong (3) spot welding respectively by power line (25).
5. the leakage protecting plug of band ground wire abnormity protection function according to claim 4, is characterized in that, described earth pin (1), zero line pin (2) and live prong (3) are all fixed on base plate (8).
6. the leakage protecting plug of band ground wire abnormity protection function according to claim 1; it is characterized in that; described leakage protecting plug also comprises zero sequence current mutual inductor (7), and described live wire fixed contact (6) and zero line fixed contact (5) are through the centre bore of described zero sequence current mutual inductor (7).
7. the leakage protecting plug of band ground wire abnormity protection function according to claim 1; it is characterized in that; described leakage protecting plug also comprises current transformer (24); described ground wire moving contact (12) is through the centre bore of described current transformer (24), and the afterbody of described ground wire moving contact (12) snaps in the stern notch (907) of described release pedestal (9).
8. the leakage protecting plug of band ground wire abnormity protection function according to claim 1; it is characterized in that; described leakage protecting plug also comprises wiring board (16); described wiring board (16) is positioned at above described release pedestal (9), and described wiring board (16) is provided with reset button jack and preformed hole.
9. the leakage protecting plug of band ground wire abnormity protection function according to claim 8; it is characterized in that; the afterbody of described live wire fixed contact (6) and zero line fixed contact (5) passes the preformed hole of described wiring board (16), and is linked together by connecting line and power line (25) soldering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202529.7U CN204067738U (en) | 2014-04-24 | 2014-04-24 | A kind of leakage protecting plug with ground wire abnormity protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202529.7U CN204067738U (en) | 2014-04-24 | 2014-04-24 | A kind of leakage protecting plug with ground wire abnormity protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204067738U true CN204067738U (en) | 2014-12-31 |
Family
ID=52209187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202529.7U Expired - Lifetime CN204067738U (en) | 2014-04-24 | 2014-04-24 | A kind of leakage protecting plug with ground wire abnormity protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204067738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107644790A (en) * | 2017-10-24 | 2018-01-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN108288785A (en) * | 2018-04-07 | 2018-07-17 | 佛山市顺德区信辉达电子有限公司 | Three pole break-make leakage protecting plugs |
| CN108933427A (en) * | 2017-05-27 | 2018-12-04 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its protective device |
-
2014
- 2014-04-24 CN CN201420202529.7U patent/CN204067738U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108933427A (en) * | 2017-05-27 | 2018-12-04 | 芜湖美的厨卫电器制造有限公司 | Electric heater and its protective device |
| CN107644790A (en) * | 2017-10-24 | 2018-01-30 | 余姚市嘉荣电子电器有限公司 | A kind of earth leakage protective device |
| CN107644790B (en) * | 2017-10-24 | 2020-08-07 | 余姚市嘉荣电子电器有限公司 | Leakage protector |
| CN108288785A (en) * | 2018-04-07 | 2018-07-17 | 佛山市顺德区信辉达电子有限公司 | Three pole break-make leakage protecting plugs |
| CN108288785B (en) * | 2018-04-07 | 2023-10-24 | 佛山市顺德区信辉达电子有限公司 | Tripolar on-off leakage protection plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
|
| CX01 | Expiry of patent term |