CN102810799A - Current leakage protection plug - Google Patents
Current leakage protection plug Download PDFInfo
- Publication number
- CN102810799A CN102810799A CN2012102890206A CN201210289020A CN102810799A CN 102810799 A CN102810799 A CN 102810799A CN 2012102890206 A CN2012102890206 A CN 2012102890206A CN 201210289020 A CN201210289020 A CN 201210289020A CN 102810799 A CN102810799 A CN 102810799A
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- ground wire
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- zero line
- shell
- live wire
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Abstract
The invention relates to a current leakage protection plug, which comprises a shell. The shell is provided with a reset button and a testing button, a circuit board is arranged in the shell, the circuit board is provided with a live wire stationary contact and a zero wire stationary contact, the live wire stationary contact and the zero wire stationary contact are electrically connected with a live wire pin and a zero wire pin on the shell through wires, the shell is provided with a ground wire pin, the ground wire pin is provided with a ground wire stationary contact, the ground wire stationary contact is provided with a ground wire stationary contact, a live wire spring plate, a zero wire spring plate and a ground wire spring plate are arranged in the shell and are connected with an output power cord, the live wire spring plate, the zero wire spring plate and the ground wire spring plate are correspondingly provided with a live wire dynamic contact, a zero wire dynamic contact and a ground wire dynamic contact which are contacted with the live wire stationary contact, the zero wire stationary contact and the ground wire stationary contact, a tripping device is also arranged in the shell, and the ground wire spring plate is provided with an elastic ejection component which can eject the live wire dynamic spring plate, the zero wire dynamic spring plate and the ground wire dynamic spring plate to be away from the stationary contacts in testing or current leakage. The invention aims to provide a current leakage protection plug with high safety and simple and reliable structure.
Description
[technical field]
The present invention relates to a kind of plug, especially a kind of leakage protecting plug.
[background technology]
The ground wire closing of contact of existing leakage protecting plug is mainly through following dual mode: 1, lean on the elastic force of ground wire spring plate self closed; But the shell fragment coefficient of elasticity of sheet is bad; If through certain useful life or the distortion of ground wire spring plate; The ground wire contact will loose contact so, and the ground wire protective wire breaks off, and electrical appliance just has contact danger; 2, by means of zero, self elastic force of live wire spring plate goes to flick the ground wire contact, if the elastic force of such structure zero, live wire movable contact spring is not enough to overcome the elastic force of the spring plate of ground wire, just there is the possibility of breaking not open the ground wire contact.
The present invention just is based on that above situation makes.
[summary of the invention]
The present invention has overcome the deficiency of prior art, and a kind of safe, simple and reliable for structure leakage protecting plug is provided.
The present invention adopts following technical scheme for solving the problems of the technologies described above:
A kind of leakage protecting plug; It is characterized in that including shell; On shell, be provided with SR and testing button; Be provided with inner support and wiring board in the enclosure; Be respectively equipped with live wire, zero line fixed contact in the circuit board; Described live wire, zero line fixed contact are electrically connected with live wire, zero line pin on being arranged on shell through lead respectively, on shell, also are provided with earth pin, on earth pin, are provided with the ground wire fixed contact; Be respectively equipped with the live wire, zero line, the ground wire shell fragment that are connected with the out-put supply line in the enclosure; On described live wire, zero line, ground wire shell fragment, be correspondingly provided with the live wire, zero line moving contact and the ground wire moving contact that contact with live wire, zero line fixed contact and ground wire fixed contact, also be provided with trip gear in the enclosure, said live wire, zero line, ground wire shell fragment respective fixation are on trip gear and can make the corresponding connection that contacts with live wire, zero line fixed contact and ground wire fixed contact of live wire, zero line moving contact and ground wire moving contact; Be provided with on the ground wire shell fragment test or electric leakage the time can back down live wire, zero line, ground wire spring plate make the live wire, zero line moving contact and the ground wire moving contact that are located on live wire, zero line, the ground wire spring plate away from live wire, zero line fixed contact and ground wire fixed contact the elastic top casting die, this elastic top casting die upper end roof pressure is in inner support and make it remain on compressive state.
Aforesaid a kind of leakage protecting plug; It is characterized in that described trip gear includes the cross-arm that is located in the inner support; Below said cross-arm, be provided with the pulling block that drives the action of ground wire spring plate; Described SR is movably arranged in the cross-arm, being provided with trip on the described SR and when live wire, zero line, ground wire spring plate are closed, keeping the back-moving spring of dynamic and static contacting, in cross-arm, also is provided with the snap close that can fasten trip.
Aforesaid a kind of leakage protecting plug; It is characterized in that also being provided with in the described shell tripping coil that is electrically connected and triggers outage with described wiring board by described testing button; Described tripping coil includes an end and is buckled in the armature on the snap close, and the other end of said armature is arranged with the dropout spring.
Aforesaid a kind of leakage protecting plug; It is characterized in that described shell includes the loam cake and the lower cover that snap together and forms; Said SR and testing button stretch out from the loam cake uper side surface, and said live wire, zero line, earth pin are stretched out from the lower cover downside surface.
Aforesaid a kind of leakage protecting plug is characterized in that described ground wire shell fragment is provided with hemisphere jut, and described elastic top casting die places on the hemisphere jut.
Aforesaid a kind of leakage protecting plug is characterized in that described elastic top casting die is a spring.
Aforesaid a kind of leakage protecting plug is characterized in that described armature is T shape cuboid.
The present invention compared with prior art has following advantage:
1, the closing of contact of ground wire is leaned on the elastic force of elastic top casting die; Because of the elastic top casting die is a helical spring; Its elasticity is more a lot of than the good springiness of sheet self, does not have the possibility that causes poor contact of contacts because of elastic force is not enough, has eliminated the major safety risks that cause because of the ground wire loose contact fully.
2, break off the contact of ground wire together through the elastic force of elastic top casting die and ground wire shell fragment self; And the direction of the direction of these two kinds of power and zero, live wire movable contact spring breakaway is consistent; The elastic force of the movable contact spring that do not exist because of zero, the elastic force of live wire shell fragment is not enough to overcome ground wire, the possibility that ground wire just breaks not open.
[description of drawings]
Fig. 1 is a cutaway view of the present invention;
Fig. 2 receives external force state cutaway view for the present invention;
Fig. 3 discharges cutaway view for external force of the present invention;
Fig. 4 is a reset mode cutaway view of the present invention;
Fig. 5 removes the shell stereogram for the present invention;
Fig. 6 is a partial interior structural perspective of the present invention;
Fig. 7 is a ground wire movable contact spring sketch map of the present invention;
Fig. 8 is a trip gear stereogram of the present invention;
Fig. 9 is slide fastener of the present invention and snap fit stereogram;
Figure 10 is a stereogram of the present invention;
Figure 11 is an armature profile sketch map.
[embodiment]
Below in conjunction with accompanying drawing the present invention is elaborated:
A kind of leakage protecting plug; Include shell 1; On shell 1, be provided with SR 11 and testing button 12; In shell 1, be provided with wiring board 3; On wiring board 3, be respectively equipped with live wire fixed contact 21, zero line fixed contact 22; Described live wire fixed contact 21, zero line fixed contact 22 are electrically connected with live wire 42, zero line 43 pins on being arranged on shell 1 through lead respectively; Be provided with earth pin 41 at shell 1 on also; On earth pin 41, be provided with ground wire fixed contact 412; In shell 1, be respectively equipped with the live wire shell fragment 51, zero line shell fragment 52, the ground wire shell fragment 53 that are connected with the out-put supply line; On described live wire shell fragment 51, zero line shell fragment 52, ground wire shell fragment 53, be correspondingly provided with the live wire moving contact 23, zero line moving contact 24 and the ground wire moving contact 413 that contact with live wire fixed contact 21, zero line fixed contact 22 and ground wire fixed contact 412 and in shell 1, also be provided with trip gear 6; Said live wire shell fragment 51, zero line shell fragment 52, ground wire shell fragment 53 respective fixation are on trip gear 6 and can make live wire moving contact 23, zero line moving contact 24 and 413 corresponding connection that contact with live wire fixed contact 21, zero line fixed contact 22 and ground wire fixed contact 412 of ground wire moving contact, when being provided with in test on the ground wire spring plate 53 or leaking electricity, can back down live wire spring plate 51, zero line spring plate 52, ground wire spring plate 53 and make the live wire moving contact 23, zero line moving contact 24 and the ground wire moving contact 413 that are located on live wire spring plate 51, zero line spring plate 52, the ground wire spring plate 53 elastic top casting die 7 away from fixed contact away from live wire fixed contact 21, zero line fixed contact 22 and ground wire fixed contact 412, and these elastic top casting die 7 upper end roof pressures are in inner support 9 and make its maintenance compressive state.When test or electric leakage; Described live wire spring plate 51, zero line spring plate 52, ground wire spring plate 53 add through self elastic force and the elastic force of elastic top casting die 7 make live wire moving contact 23, zero line moving contact 24 and ground wire moving contact 413 away from live wire fixed contact 21, zero line fixed contact 22 and ground wire fixed contact 412.
Described trip gear 6 includes the cross-arm 61 that is located in the shell 1; Below said cross-arm 61, be provided with the pulling block 62 that drives 53 actions of ground wire spring plate; When cross-arm 61 knee-actions, drive pulling block 62 knee-actions, in cross-arm 61, be provided with and can slide up and down the SR 11 of pushing slip by described SR 11; On described SR 11, be provided with trip 631 and back-moving spring 65, in cross-arm 61, also be provided with the snap close 64 that can fasten trip 631.Be provided with the cavity of hollow in the said snap close 64; Said SR 11 places cavity, does the time spent as external force, and SR 11 is pushed SR 11 and moved down; When the trip 631 on being located at SR 11 was lower than snap close 64 lower surfaces, snap close 64 roof pressures were on trip 631.
Also be provided with the tripping coil 8 that is electrically connected and triggers outage with described wiring board 3 in the described shell 1 by described testing button 12; Described tripping coil 8 includes an end and is buckled in the armature 81 on the snap close 64; Described armature 81 is T shape cuboid; Described armature 71 is hardware stamping spare, and manufacturing process is simple, cost is low, is arranged with dropout spring 82 at the other end of said armature 81.
Described shell 1 includes the loam cake 13 that snaps together to be formed with lower cover 14, and said SR 11 stretches out from loam cake 13 uper side surfaces with testing button 12, and said live wire, zero line, earth pin are stretched out from lower cover 14 downside surfaces.
Described ground wire shell fragment 53 is provided with hemisphere jut 531, and described elastic top casting die 7 places on the hemisphere jut 531.
Described elastic top casting die 7 is a spring.
Course of action of the present invention is following: do the time spent as external force; SR 11 is pushed SR 11 and is moved down, and when the trip 631 on being located at SR 11 was lower than snap close 64 lower surfaces, snap close 64 was under the effect of armature 81 and dropout spring 82; Roof pressure is on trip 631 and fasten reset key 11; After snap close 64 fastens reset key 11, discharge external force, reset key 11 under the effect of back-moving spring 65, move up (as shown in Figure 3); Drive the dynamic and static closing of contact of three couples on cross-arm 61, pulling block 62, live wire spring plate 51, zero line spring plate 52, ground wire spring plate 53 and live wire, zero line, the ground wire; On the closing order of three pairs of dynamic and static contacts, the ground wire contact is closed earlier, and is closed in ground wire behind zero line, the firewire contact.
In when, leak current fault taking place or by testing button 12 or plug inside temperature anomaly or ground wire voltage failure being arranged when; The work of electric leakage control system commands relays, armature 81 actions, 61 swings of pulling cross-arm; Reset key 11 is threaded off; The back reset key 11 of threading off moves up under the effect of the power of back-moving spring 65, and cross-arm 61, pulling block 62 move up under the elastic force of ground wire spring plate 53 (as shown in Figure 4), and ground wire spring plate 53 makes three pairs of dynamic and static contact separation under the effect of elastic top casting die 7 and self elastic force; Cut off the electricity supply, reset to off-position.During disconnection, zero, firewire contact separates earlier, separates behind the ground wire contact.
Claims (7)
1. leakage protecting plug; It is characterized in that including shell (1); On shell (1), be provided with SR (11) and testing button (12); In shell (1), be provided with inner support (9) and wiring board (3); On wiring board (3), be respectively equipped with live wire, zero line fixed contact (21,22); Described live wire, zero line fixed contact (21,22) are electrically connected with live wire, zero line (42,43) pin on being arranged on shell (1) through lead respectively; On shell (1), also be provided with earth pin (41); On earth pin (41), be provided with ground wire fixed contact (412); In shell (1), be respectively equipped with the live wire, zero line, the ground wire shell fragment (51,52,53) that are connected with the out-put supply line; On described live wire, zero line, ground wire shell fragment (51,52,53), be correspondingly provided with the live wire, zero line moving contact (23,24) and the ground wire moving contact (413) that contact with live wire, zero line fixed contact (21,22) and ground wire fixed contact (412); In shell (1), also be provided with trip gear (6); Said live wire, zero line, ground wire shell fragment (51,52,53) respective fixation are gone up and can be made corresponding connections that contact with live wire, zero line fixed contact (21,22) and ground wire fixed contact (412) of live wire, zero line moving contact (23,24) and ground wire moving contact (413) at trip gear (6), when being provided with in test on the ground wire shell fragment (53) or leaking electricity, can back down live wire, zero line, ground wire spring plate (51,52,53) make the live wire, zero line moving contact (23,24) and the ground wire moving contact (413) that are located on live wire, zero line, the ground wire spring plate (51,52,53) away from live wire, zero line fixed contact (21,22) and ground wire fixed contact (412) elastic top casting die (7), roof pressure is in inner support (9) and make it remain on compressive state on this elastic top casting die (7).
2. a kind of leakage protecting plug according to claim 1; It is characterized in that described trip gear (6) includes the cross-arm (61) that is located in the inner support (9); Be provided with the pulling block (62) that drives ground wire spring plate (53) action in said cross-arm (61) below; Described SR (11) is movably arranged in the cross-arm (61); Being provided with trip (631) on the described SR (11) and when live wire, zero line, ground wire spring plate (51,52,53) are closed, keeping the back-moving spring (65) of dynamic and static contacting, in cross-arm (61), also be provided with the snap close (64) that can fasten trip (631).
3. a kind of leakage protecting plug according to claim 1 and 2; It is characterized in that also being provided with in the described shell (1) tripping coil (8) that is electrically connected and triggers outage with described wiring board (3) by described testing button (12); Described tripping coil (8) includes an end and is buckled in the armature (81) on the snap close (64), and the other end of said armature (81) is arranged with dropout spring (82).
4. a kind of leakage protecting plug according to claim 1; It is characterized in that described shell (1) includes the loam cake (13) and the lower cover (14) that snap together and forms; Said SR (11) and testing button (12) stretch out from loam cake (13) uper side surface, and said live wire, zero line, earth pin are stretched out from lower cover (14) downside surface.
5. a kind of leakage protecting plug according to claim 1 is characterized in that described ground wire shell fragment (53) is provided with hemisphere jut (531), and described elastic top casting die (7) places on the hemisphere jut (531).
6. a kind of leakage protecting plug according to claim 1 is characterized in that described elastic top casting die (7) is a spring.
7. a kind of leakage protecting plug according to claim 3 is characterized in that described armature (81) is T shape cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289020.6A CN102810799B (en) | 2012-08-14 | 2012-08-14 | Current leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210289020.6A CN102810799B (en) | 2012-08-14 | 2012-08-14 | Current leakage protection plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102810799A true CN102810799A (en) | 2012-12-05 |
| CN102810799B CN102810799B (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210289020.6A Active CN102810799B (en) | 2012-08-14 | 2012-08-14 | Current leakage protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102810799B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560366A (en) * | 2013-10-31 | 2014-02-05 | 佛山市顺德区信辉达电子有限公司 | Leakage protection plug |
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection plug |
| CN104143490A (en) * | 2014-08-12 | 2014-11-12 | 佛山市新基德电子厂有限公司 | Ground wire push rod device |
| CN106024539A (en) * | 2016-07-19 | 2016-10-12 | 中山市开普电器有限公司 | Electric leakage protector |
| CN106654736A (en) * | 2016-10-14 | 2017-05-10 | 中山市拓昊电器有限公司 | Leakage protection plug |
| CN106953212A (en) * | 2016-12-06 | 2017-07-14 | 佛山市顺德区信辉达电子有限公司 | A kind of leakage protecting plug |
| CN107123576A (en) * | 2017-06-19 | 2017-09-01 | 中山市开普电器有限公司 | A kind of dropout of earth leakage circuit-breaker and resetting structure |
| CN107508090A (en) * | 2017-09-07 | 2017-12-22 | 中山市拓昊电器有限公司 | One kind has earth leakage protective safety plug |
| 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 |
| CN111916928A (en) * | 2020-08-21 | 2020-11-10 | 田自娟 | Three-pole leakage protection plug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080108252A1 (en) * | 2005-01-04 | 2008-05-08 | Technology Research Corporation | Leakage current detection and interruption circuit |
| CN201466394U (en) * | 2009-06-15 | 2010-05-12 | 祝孔成 | Leakage protection switch with ground wire protection device |
| CN202142732U (en) * | 2011-07-01 | 2012-02-08 | 刘睿刚 | Electric leakage protection plug |
| CN202840125U (en) * | 2012-08-14 | 2013-03-27 | 中山市拓昊电器有限公司 | Novel electric-leakage protection plug |
-
2012
- 2012-08-14 CN CN201210289020.6A patent/CN102810799B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080108252A1 (en) * | 2005-01-04 | 2008-05-08 | Technology Research Corporation | Leakage current detection and interruption circuit |
| CN201466394U (en) * | 2009-06-15 | 2010-05-12 | 祝孔成 | Leakage protection switch with ground wire protection device |
| CN202142732U (en) * | 2011-07-01 | 2012-02-08 | 刘睿刚 | Electric leakage protection plug |
| CN202840125U (en) * | 2012-08-14 | 2013-03-27 | 中山市拓昊电器有限公司 | Novel electric-leakage protection plug |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560366A (en) * | 2013-10-31 | 2014-02-05 | 佛山市顺德区信辉达电子有限公司 | Leakage protection plug |
| 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 |
| CN104143490A (en) * | 2014-08-12 | 2014-11-12 | 佛山市新基德电子厂有限公司 | Ground wire push rod device |
| CN106024539A (en) * | 2016-07-19 | 2016-10-12 | 中山市开普电器有限公司 | Electric leakage protector |
| CN106654736B (en) * | 2016-10-14 | 2019-03-22 | 中山市拓昊电器有限公司 | A kind of leakage protecting plug |
| CN106654736A (en) * | 2016-10-14 | 2017-05-10 | 中山市拓昊电器有限公司 | Leakage protection plug |
| CN106953212A (en) * | 2016-12-06 | 2017-07-14 | 佛山市顺德区信辉达电子有限公司 | A kind of leakage protecting plug |
| CN107123576A (en) * | 2017-06-19 | 2017-09-01 | 中山市开普电器有限公司 | A kind of dropout of earth leakage circuit-breaker and resetting structure |
| CN107508090A (en) * | 2017-09-07 | 2017-12-22 | 中山市拓昊电器有限公司 | One kind has earth leakage protective safety plug |
| 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 |
| CN111916928A (en) * | 2020-08-21 | 2020-11-10 | 田自娟 | Three-pole leakage protection plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102810799B (en) | 2015-01-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 528400 Second Floor of No. 108 Dongfu Fourth Road, Dongfeng Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan To-Head Electrical Co., Ltd. Address before: 528400 No. 5, Second Street, Beihe Road, Xiaoli Village, Dongfeng Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan To-Head Electrical Co., Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200610 Address after: 528400 third floor, workshop, No.108, Dongfu Fourth Road, Dongfeng Town, Zhongshan City, Guangdong Province Patentee after: Zhongshan RiFeng Intelligent Electric Co.,Ltd. Address before: No.108, Dongfu Fourth Road, Dongfeng Town, Zhongshan City, Guangdong Province Patentee before: ZHONGSHAN TO-HEAD ELECTRICAL Co.,Ltd. |
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| TR01 | Transfer of patent right |