CN202840125U - Novel electric-leakage protection plug - Google Patents
Novel electric-leakage protection plug Download PDFInfo
- Publication number
- CN202840125U CN202840125U CN 201220402410 CN201220402410U CN202840125U CN 202840125 U CN202840125 U CN 202840125U CN 201220402410 CN201220402410 CN 201220402410 CN 201220402410 U CN201220402410 U CN 201220402410U CN 202840125 U CN202840125 U CN 202840125U
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- Prior art keywords
- wire
- zero line
- ground wire
- live wire
- shell
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Abstract
The utility model relates to a novel electric-leakage protection plug, comprising a housing. A reset button and a test button are arranged on the housing. A circuit board is mounted in the housing. Live-wire and zero-wire fixed contacts are disposed on the circuit board and are electrically connected with live-wire and zero-wire pins on the housing by leads. A ground wire pin is mounted on the housing. A ground-wire fixed contact is disposed on the ground wire pin. Live-wire, zero-wire and ground-wire springs connected with an output power wire are arranged in the housing. Live-wire, zero-wire and ground wire moving contacts contacted with the live-wire, zero-wire and ground wire fixed contacts are correspondingly disposed on the live-wire, zero-wire and ground-wire springs. A trip device is arranged in the housing. An elastic support member which can support live-wire, zero-wire and ground-wire moving springs to enable the moving springs far from the fixed contacts when in test or in electric leakage is disposed on the ground-wire spring. The purpose of the utility model is that the electric-leakage protection plug having high security and a simple and reliable structure is provided.
Description
[technical field]
The utility model relates to a kind of plug, especially a kind of Novel earth leakage protection plug.
[background technology]
The earth wire contact of existing leakage protecting plug is closed main by following dual mode: 1, the elastic force by ground wire spring plate self is 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, earth wire contact will loose contact so, the ground wire protective wire disconnects, and electrical appliance just has contact danger; 2, by means of zero, self elastic force of live wire spring plate removes to flick earth 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, earth wire contact just has the possibility of breaking not open.
The utility model just is based on above situation and makes.
[utility model content]
The utility model has overcome the deficiencies in the prior art, and a kind of safe, simple and reliable for structure leakage protecting plug is provided.
The utility model is for solving the problems of the technologies described above, by the following technical solutions:
A kind of Novel earth leakage protection plug; it is characterized in that including shell; be provided with reset button and testing button at shell; be provided with in the enclosure inner support and wiring board; be respectively equipped with in the circuit board live wire; the zero line fixed contact; described live wire; the zero line fixed contact is respectively by wire and the live wire that is arranged on the shell; zero line pin is electrically connected; on shell, also be provided with earth pin; be provided with the ground wire fixed contact in earth pin; be respectively equipped with in the enclosure the live wire that is connected with the out-put supply line; zero line; the ground wire shell fragment; at described live wire; zero line; be correspondingly provided with and live wire on the ground wire shell fragment; the live wire of zero line fixed contact and the contact of ground wire fixed contact; zero line moving contact and ground wire moving contact; also be provided with in the enclosure trip gear; described live wire; zero line; corresponding being fixed on the trip gear of ground wire shell fragment also can make live wire; corresponding and the live wire of zero line moving contact and ground wire moving contact; the connection that contacts of zero line fixed contact and ground wire fixed contact; when being provided with in test or electric leakage, the ground wire shell fragment can back down live wire; zero line; the ground wire spring plate makes and is located at live wire; zero line; live wire on the ground wire spring plate; zero line moving contact and ground wire moving contact are away from live wire; zero line fixed contact and ground wire fixed contact the elastic top casting die, top, this elastic top casting die upper end is pressed in the inner support and makes it remain on compressive state.
Aforesaid a kind of Novel earth leakage protection plug; it is characterized in that described trip gear includes the cross-arm that is located in the inner support; below described cross-arm, be provided with the pulling block that drives the action of ground wire spring plate; described reset button is movably arranged in the cross-arm; be provided with snap fit and when live wire, zero line, ground wire spring plate are closed, keep the back-moving spring of dynamic and static contacting in described reset button, in cross-arm, also be provided with the snap close that can fasten snap fit.
Aforesaid a kind of Novel earth leakage protection plug; it is characterized in that also being provided with in the described shell tripping coil that is electrically connected and is triggered by described testing button outage with described wiring board; described tripping coil includes an end and is buckled in armature on the snap close, and the other end of described armature is arranged with the dropout spring.
Aforesaid a kind of Novel earth leakage protection plug; it is characterized in that described shell includes the loam cake and the lower cover that snap together and forms; described reset button and testing button stretch out from the loam cake uper side surface, and described live wire, zero line, earth pin are stretched out from the lower cover downside surface.
Aforesaid a kind of Novel earth leakage protection 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 Novel earth leakage protection plug is characterized in that described elastic top casting die is spring.
Aforesaid a kind of Novel earth leakage protection plug is characterized in that described armature is T shape cuboid.
The utility model compared with prior art has following advantage:
1, the closing of contact of ground wire is by the elastic force of elastic top casting die, because the elastic top casting die is 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 elastic force is not enough, has eliminated the major safety risks that cause because of the ground wire loose contact fully.
2, disconnect together the contact of ground wire by 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 the utility model cutaway view;
Fig. 2 is that the utility model is subjected to external force state cutaway view;
Fig. 3 is that the utility model external force discharges cutaway view;
Fig. 4 is the utility model reset mode cutaway view;
Fig. 5 is that the utility model is removed the shell stereogram;
Fig. 6 is the utility model partial interior structural perspective;
Fig. 7 is the utility model ground wire movable contact spring schematic diagram;
Fig. 8 is the utility model trip gear stereogram;
Fig. 9 is the utility model slide fastener and snap fit stereogram;
Figure 10 is the utility model stereogram;
Figure 11 is armature profile schematic diagram.
[embodiment]
Below in conjunction with accompanying drawing the utility model is elaborated:
A kind of Novel earth leakage protection plug; include shell 1; be provided with reset button 11 and testing button 12 at shell 1; in shell 1, be provided with wiring board 3; be respectively equipped with live wire fixed contact 21 at wiring board 3; zero line fixed contact 22; described live wire fixed contact 21; zero line fixed contact 22 is respectively by wire and the live wire 42 that is arranged on the shell 1; zero line 43 pins are electrically connected; also be provided with earth pin 41 at shell 1; be provided with ground wire fixed contact 412 in earth pin 41; in shell 1, be respectively equipped with the live wire shell fragment 51 that is connected with the out-put supply line; zero line shell fragment 52; ground wire shell fragment 53; at described live wire shell fragment 51; zero line shell fragment 52; be correspondingly provided with on the ground wire shell fragment 53 and live wire fixed contact 21; the live wire moving contact 23 of zero line fixed contact 22 and 412 contacts of ground wire fixed contact; zero line moving contact 24 and ground wire moving contact 413 also are provided with trip gear 6 in shell 1; described live wire shell fragment 51; zero line shell fragment 52; ground wire shell fragment 53 corresponding being fixed on the trip gear 6 also can make live wire moving contact 23; zero line moving contact 24 and ground wire moving contact 413 corresponding and live wire fixed contacts 21; the connection that contacts of zero line fixed contact 22 and ground wire fixed contact 412; when being provided with in test or electric leakage, ground wire spring plate 53 can back down live wire spring plate 51; zero line spring plate 52; ground wire spring plate 53 makes and is located at live wire spring plate 51; zero line spring plate 52; live wire moving contact 23 on the ground wire spring plate 53; zero line moving contact 24 and ground wire moving contact 413 are away from live wire fixed contact 21; the elastic top casting die 7 away from fixed contact of zero line fixed contact 22 and ground wire fixed contact 412, this top, elastic top casting die 7 upper ends is pressed in the inner support 9 and makes it keep compressive state.When test or electric leakage, described live wire spring plate 51, zero line spring plate 52, ground wire spring plate 53 add the elastic force of elastic top casting die 7 by self elastic force, 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 described cross-arm 61, be provided with the pulling block 62 that drives 53 actions of ground wire spring plate, when cross-arm 61 knee-action, drive pulling block 62 knee-actions, in cross-arm 61, be provided with and slide up and down the reset button 11 of being pressed slip by described reset button 11, be provided with snap fit 631 and back-moving spring 65 in described reset button 11, in cross-arm 61, also be provided with the snap close 64 that can fasten snap fit 631.Be provided with the cavity of hollow in the described snap close 64, described reset button 11 places cavity, and when External Force Acting was arranged, reset button 11 was pressed reset button 11 and moved down, when the snap fit 631 on being located at reset button 11 was lower than snap close 64 lower surface, snap close 64 tops were pressed on the snap fit 631.
Also be provided with the tripping coil 8 that is electrically connected and is triggered by described testing button 12 outage with described wiring board 3 in the described shell 1, described tripping coil 8 includes an end and is buckled in armature 81 on the snap close 64, described armature 81 is T shape cuboid, described armature 71 is hardware stamping spare, manufacturing process is simple, cost is low, is arranged with dropout spring 82 at the other end of described armature 81.
Described shell 1 includes the loam cake 13 and the lower cover 14 that snap together and forms, and described reset button 11 and testing button 12 stretch out from loam cake 13 uper side surfaces, and described 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 spring.
Course of action of the present utility model is as follows: when External Force Acting is arranged, reset button 11 is pressed reset button 11 and is moved down, when the snap fit 631 on being located at reset button 11 is lower than snap close 64 lower surface, snap close 64 is under the effect of armature 81 and dropout spring 82, the top is pressed on the snap fit 631 and fastens reset key 11, after snap close 64 fastens reset key 11, discharge external force, reset key 11 moves up (as shown in Figure 3) under the effect of back-moving spring 65, drive 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, three couple on the ground wire is moving, fixed contact is closed, moving at three pairs, on the closing order of fixed contact, earth wire contact is closed first, zero line, closed in ground wire behind the firewire contact.
In when, leak current fault occuring 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; pulling cross-arm 61 swings; reset key 11 is threaded off; reset key 11 moves up under the effect of the power of back-moving spring 65 after threading off; cross-arm 61, pulling block 62 move up (as shown in Figure 4) under the elastic force of ground wire spring plate 53; 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 first, separates behind the earth wire contact.
Claims (7)
1. Novel earth leakage protection plug; it is characterized in that including shell (1); be provided with reset button (11) and testing button (12) at shell (1); in shell (1), be provided with inner support (9) and wiring board (3); be respectively equipped with live wire at wiring board (3); zero line fixed contact (21; 22); described live wire; zero line fixed contact (21; 22) respectively by wire and the live wire that is arranged on the shell (1); zero line (42; 43) pin is electrically connected; on shell (1), also be provided with earth pin (41); be provided with ground wire fixed contact (412) in earth pin (41); in shell (1), be respectively equipped with the live wire that is connected with the out-put supply line; zero line; ground wire shell fragment (51; 52; 53); at described live wire; zero line; ground wire shell fragment (51; 52; 53) be correspondingly provided with on and live wire; zero line fixed contact (21; 22) and the live wire of ground wire fixed contact (412) contact; zero line moving contact (23; 24) and ground wire moving contact (413); in shell (1), also be provided with trip gear (6); described live wire; zero line; ground wire shell fragment (51; 52; 53) the corresponding trip gear (6) that is fixed on upward also can make live wire; zero line moving contact (23; 24) and ground wire moving contact (413) is corresponding and live wire; zero line fixed contact (21; 22) and ground wire fixed contact (412) connection that contacts; when being provided with in test or electric leakage, ground wire shell fragment (53) can back down live wire; zero line; ground wire spring plate (51; 52; 53) make and be located at live wire; zero line; ground wire spring plate (51; 52; 53) live wire on; zero line moving contact (23; 24) and ground wire moving contact (413) away from live wire; zero line fixed contact (21; 22) and ground wire fixed contact (412) elastic top casting die (7), top, this elastic top casting die (7) upper end is pressed in the inner support (9) and makes it remain on compressive state.
2. a kind of Novel earth leakage protection 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 described cross-arm (61) below; described reset button (11) is movably arranged in the cross-arm (61); be provided with snap fit (631) and work as live wire in described reset button (11); zero line; ground wire spring plate (51; 52; keep moving when 53) closed; the back-moving spring (65) that fixed contact is connected also is provided with the snap close (64) that can fasten snap fit (631) in cross-arm (61).
3. a kind of Novel earth leakage protection 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 is triggered by described testing button (12) outage with described wiring board (3); described tripping coil (8) includes an end and is buckled in armature (81) on the snap close (64), and the other end of described armature (81) is arranged with dropout spring (82).
4. a kind of Novel earth leakage protection 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; described reset button (11) and testing button (12) stretch out from loam cake (13) uper side surface, and described live wire, zero line, earth pin are stretched out from lower cover (14) downside surface.
5. a kind of Novel earth leakage protection 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 Novel earth leakage protection plug according to claim 1 is characterized in that described elastic top casting die (7) is spring.
7. a kind of Novel earth leakage protection 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 |
|---|---|---|---|
| CN 201220402410 CN202840125U (en) | 2012-08-14 | 2012-08-14 | Novel electric-leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220402410 CN202840125U (en) | 2012-08-14 | 2012-08-14 | Novel electric-leakage protection plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202840125U true CN202840125U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220402410 Expired - Fee Related CN202840125U (en) | 2012-08-14 | 2012-08-14 | Novel electric-leakage protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202840125U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810799A (en) * | 2012-08-14 | 2012-12-05 | 中山市拓昊电器有限公司 | Current 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 |
| CN104143736A (en) * | 2014-07-15 | 2014-11-12 | 东莞市永晟电线有限公司 | Electric leakage protection 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 |
| 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 |
| CN108461996A (en) * | 2018-04-07 | 2018-08-28 | 佛山市顺德区信辉达电子有限公司 | Three pole break-make leakage protecting plugs |
-
2012
- 2012-08-14 CN CN 201220402410 patent/CN202840125U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810799A (en) * | 2012-08-14 | 2012-12-05 | 中山市拓昊电器有限公司 | Current leakage protection plug |
| CN102810799B (en) * | 2012-08-14 | 2015-01-28 | 中山市拓昊电器有限公司 | Current 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 |
| 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 |
| 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 |
| CN108461996A (en) * | 2018-04-07 | 2018-08-28 | 佛山市顺德区信辉达电子有限公司 | Three pole break-make leakage protecting plugs |
| CN108461996B (en) * | 2018-04-07 | 2023-09-22 | 佛山市顺德区信辉达电子有限公司 | Tripolar on-off leakage protection plug |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20150814 |
|
| EXPY | Termination of patent right or utility model |