CN205693086U - Three extremely break leakage protecting plug - Google Patents
Three extremely break leakage protecting plug Download PDFInfo
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- CN205693086U CN205693086U CN201620591872.4U CN201620591872U CN205693086U CN 205693086 U CN205693086 U CN 205693086U CN 201620591872 U CN201620591872 U CN 201620591872U CN 205693086 U CN205693086 U CN 205693086U
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- zero line
- live wire
- wire
- reset key
- dropout
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Abstract
This utility model relates to a kind of three and extremely breaks leakage protecting plug, and feature is to include shell, wiring board, reset key, zero line shell fragment, grounding elastic part, live wire shell fragment, iron core, little spring, tripping coil, dropout card, pressure arm, big spring, dropout frame, grounding pin, fire-wire power pin and zero line power pin；Being provided with postive stop baffle and depression bar on reset key, be provided with locating groove on depression bar, the head of grounding elastic part is positioned at the top of postive stop baffle；The square aperture of dropout card can snap in locating groove and make reset key be integrated with pressure arm snap close, and postive stop baffle coordinates the head promoting grounding elastic part to move up with big spring；Ground connection stationary contact is corresponding with ground wire movable contact and can touch electrical connection, and live wire stationary contact is corresponding with live wire movable contact and can touch electrical connection, and zero line stationary contact is corresponding with zero line movable contact and can touch electrical connection.Its advantage is: when switching on power, ground wire first turns on, and turns on after zero line and live wire, and during deenergization, zero line and live wire first disconnect, and disconnects, can be fully achieved nation's security standard after ground wire, real the second protective effect playing ground wire.
Description
Technical field
This utility model relates to a kind of three and extremely breaks leakage protecting plug.
Background technology
Existing three extremely break leakage protecting plug, and its tripping mechanism is typically all and promotes grounding elastic part to control it with pressure arm
The break-make of ground wire；Its complicated structure, and generally exist a potential safety hazard, the most in use, zero-power line N, live wire L and
Ground wire E simultaneously turns on and disconnects, it is impossible to reach the GB requirement to ground structure；The requirement of GB is: during energising, ground wire
E first to connect, and connects after zero line N and live wire L；During power-off, zero line N first disconnects with live wire L, and ground wire E disconnects after wanting, existing machine
Structure can not play the ground wire effect as the second protective measure.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art to provide a kind of simple and reliable for structure, is switching on power
Time, ground wire first turns on, and turns on after zero line and live wire, and during deenergization, zero line and live wire first disconnect, and disconnects after ground wire, can be real
Playing the second protective effect of ground wire, comply fully with national standard, safer three are extremely broken leakage protecting plug.
In order to achieve the above object, this utility model is achieved in that it is a kind of three extremely to break leakage protecting plug, its
It is characterised by including:
Shell and wiring board；Described wiring board is installed in the enclosure；
Reset key；Described reset key sets in the enclosure and can axially move up and down, and the upper end of reset key passes
Wiring board stretches out outside shell thus forms press section, is provided with postive stop baffle, is provided with in the lower section of reset key on reset key
Depression bar, is provided with locating groove on depression bar；
Zero line shell fragment, grounding elastic part and live wire shell fragment；The afterbody of described zero line shell fragment, grounding elastic part and live wire shell fragment is respectively
Install in the circuit board and electrically connect, the head at zero line shell fragment, grounding elastic part and live wire shell fragment be respectively equipped with zero line movable contact,
Ground wire movable contact and live wire movable contact, the head of grounding elastic part is positioned at the top of postive stop baffle；
Iron core, little spring, tripping coil and dropout card；Described iron core and little spring are each provided at the in-core of tripping coil,
Iron core can move by horizontal axis at the in-core of tripping coil, and one end of little spring is resisted against the in-core afterbody of tripping coil, little bullet
The other end of spring is resisted against the afterbody of iron core, in the opening chute of described dropout card is fastened on the head draw-in groove of iron core and can go up
Lower movement；
Pressure arm；Described pressure arm is set on depression bar and can relatively move up and down, and is respectively provided on two sides with arm at pressure arm,
The middle part of pressure arm is provided with socket, and the square aperture of described dropout card is positioned in the socket of pressure arm, and dropout card is along with little spring
Elastic force promote iron core when moving forward, the square aperture of dropout card can snap in locating groove and make reset key lock with pressure arm
Button is integrated, and described zero line shell fragment and live wire shell fragment bear against on two arms of pressure arm；
Big spring and dropout frame；Described dropout frame is installed in the circuit board, and described tripping coil is arranged in dropout frame,
The both sides of dropout frame are equipped with longitudinal opening chute, and described pressure arm is positioned at dropout frame, its two arm in opening chute also
Can move up and down；The lower end of described big spring is against bottom in the enclosure, and the upper end of big spring is resisted against the afterbody of depression bar, limit
Position baffle plate coordinates the head promoting grounding elastic part to move up with big spring；
Grounding pin, fire-wire power pin and zero line power pin；At grounding pin, fire-wire power pin and zero line power supply
The upper end of pin is respectively equipped with ground connection stationary contact, live wire stationary contact and zero line stationary contact, described grounding pin, fire-wire power pin
And zero line power pin is separately fixed on dropout frame, described grounding pin, fire-wire power pin and zero line power pin are respectively
Passing in shell, ground connection stationary contact is corresponding with ground wire movable contact and can touch electrical connection, and live wire stationary contact is dynamic with live wire to be touched
Point is corresponding and can touch electrical connection, and zero line stationary contact is corresponding with zero line movable contact and can touch electrical connection.
In the technical program, described reset key and depression bar be not on same axis thus strengthens postive stop baffle and sets up
The platform area of grounding elastic part.
This utility model advantage compared with prior art is: simple and reliable for structure, when switching on power, and ground wire guide
Logical, turn on after zero line and live wire, during deenergization, zero line and live wire first disconnect, and disconnect after ground wire, can be fully achieved the peace of country
Full standard, real the second protective effect playing ground wire.
Accompanying drawing explanation
Fig. 1 is exploded view of the present utility model；
Fig. 2 is the axonometric chart after this utility model assembles；
Fig. 3 is the axonometric chart structural representation of decapsidate upper cover in Fig. 2；
Fig. 4 is the structural representation after this utility model assembles；
Fig. 5 is the axonometric chart (deleting shell and wiring board) of this utility model reset state；
Fig. 6 is the axonometric chart (deleting shell and wiring board) of this utility model normal operating conditions；
Fig. 7 is the axonometric chart (deleting shell and wiring board) of this utility model trip status.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further.At this it should be noted that
The explanation of these embodiments is adapted to assist in and understands this utility model, but be not intended that restriction of the present utility model.This
Outward, as long as technical characteristic involved in each embodiment of this utility model disclosed below does not constitutes punching each other
Dash forward and just can be combined with each other.
In this utility model describes, term " on ", the orientation that indicates of D score, " front " and " afterwards " etc. or position relationship be
Based on orientation shown in the drawings or position relationship, it is for only for ease of description this utility model rather than requires that this utility model must
Must be with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
As shown in Figures 1 to 4, it is a kind of three extremely to break leakage protecting plug, including:
Shell 1 and wiring board 2；Described wiring board 2 is arranged in shell 1；
Reset key 3；In described reset key 3 is located at shell 1 and can axially move up and down, the upper end of reset key 3
Stretch out outside shell 1 through wiring board 2 thus form press section, reset key 3 is provided with postive stop baffle 31, at reset key 3
Lower section be provided with depression bar 32, depression bar 32 is provided with locating groove 321；
Zero line shell fragment 4, grounding elastic part 5 and live wire shell fragment 6；Described zero line shell fragment 4, grounding elastic part 5 and the tail of live wire shell fragment 6
Portion is separately mounted on wiring board 2 and electrically connects, and the head at zero line shell fragment 4, grounding elastic part 5 and live wire shell fragment 6 is respectively equipped with
Zero line movable contact 41, ground wire movable contact 51 and live wire movable contact 61, the head of grounding elastic part 5 is positioned at the top of postive stop baffle 31；
Iron core 7, little spring 8, tripping coil 9 and dropout card 11；Described iron core 7 and little spring 8 are each provided at tripping coil 9
In-core, iron core 7 can move by horizontal axis at the in-core of tripping coil 9, and one end of little spring 8 is resisted against the core of tripping coil 9
Interior afterbody, the other end of little spring 8 is resisted against the afterbody of iron core 7, and the opening chute of described dropout card 11 is fastened on iron core 7
Head draw-in groove is interior and can move up and down；
Pressure arm 10；Described pressure arm 10 is set on depression bar 32 and can relatively move up and down, and sets respectively in the both sides of pressure arm 10
Having arm 101, be provided with socket 102 at the middle part of pressure arm 10, the square aperture of described dropout card 11 is positioned at the socket of pressure arm 10
In 102, dropout card 11 along with little spring 8 elastic force promote iron core 7 move forward time, the square aperture cocker of dropout card 11
Entering to make in locating groove 321 reset key 3 to be integrated with pressure arm 10 snap close, described zero line shell fragment 4 and live wire shell fragment 6 bear against
On two arms 101 of pressure arm 10；
Big spring 12 and dropout frame 13；Described dropout frame 13 is arranged on wiring board 2, and described tripping coil 9 is arranged on de-
In buckle frame 13, being equipped with longitudinal opening chute 131 in the both sides of dropout frame 13, described pressure arm 10 is positioned at dropout frame 13, its
Two arms 101 are in opening chute 131 and can move up and down；The lower end of described big spring 12 is resisted against the bottom in shell 1, greatly
The upper end of spring 12 is resisted against the afterbody of depression bar 32, postive stop baffle 31 coordinate with big spring 12 promote grounding elastic part 5 head to
Upper movement；
Grounding pin 14, fire-wire power pin 15 and zero line power pin 16；At grounding pin 14, fire-wire power pin 15
And the upper end of zero line power pin 16 is respectively equipped with ground connection stationary contact 141, live wire stationary contact 151 and zero line stationary contact 161, described
Grounding pin 14, fire-wire power pin 15 and zero line power pin 16 are separately fixed on dropout frame 13, described grounding pin 14,
Fire-wire power pin 15 and zero line power pin 16 pass respectively in shell 1, ground connection stationary contact 141 and ground wire movable contact 51 phase
Correspondence also can touch electrical connection, and live wire stationary contact 151 is corresponding with live wire movable contact 61 and can touch electrical connection, zero line stationary contact
161 is corresponding with zero line movable contact 41 and can touch electrical connection.
Duty, reset key 3 is integrated with pressure arm 10 snap close, and reset key 3 is moved by the thrust of big spring 12, and
The distance of movement is less than the distance between postive stop baffle 31 and grounding elastic part 5 head, and postive stop baffle 31 is with grounding elastic part 5 head not
Contact, i.e. keeps certain dropout time delay distance, grounding elastic part 5 under the elastic force effect of self, keep ground wire movable contact 51 with
First ground connection stationary contact 141 is touched and electrically connects, and two arms 101, by the elastic force effect of big spring 12, promote zero line shell fragment 4 and fire
The head one of line shell fragment 6 ibid moves, and makes zero line movable contact 41 and zero line stationary contact 161 and live wire movable contact 61 and live wire stationary contact
151 the most just touch electrical connection.
During dropout power-off, reset key 3 is threaded off with pressure arm 10 and is separated, and zero line shell fragment 4 and live wire shell fragment 6 are made at its own resilient
Together move down with lower promotion pressure arm 10, zero line movable contact 41 and zero line stationary contact 161 and live wire movable contact 61 and live wire stationary contact
First 151 separate, and reset key 3 moves up under the elastic force of big spring 12 promotes, and its postive stop baffle 31 first touches ground connection
The head of shell fragment 5, is promoted the head of grounding elastic part 5 to move up by postive stop baffle 31 the most again, makes ground wire movable contact 51 and connect
Ground stationary contact 141 the most just separates.
During use, moving down as it is shown in figure 5, press with finger reset key 3, grounding wafer 5 is at the work of its own resilient
Under with, along with reset key 3 and postive stop baffle 31 move down, the ground wire movable contact 51 of its head is first with ground connection stationary contact 141
First touching and electrically connect, when continuing pressing reset key and moving down into certain position, iron core 7 is under the elastic force effect of little spring 8
Moving forward, the square aperture of the dropout card 11 being simultaneously inserted in again socket in the middle part of pressure arm in being stuck in iron core head draw-in groove snaps in pressure
In the locating groove 321 of bar 32, make reset key 3 integral with pressure arm 10 snap close；When finger unclamps elimination pressure, big spring
The bounce of 12 makes to move on reset key 3 segment distance, and the distance of upper shifting less than postive stop baffle 31 and grounding elastic part 5 head it
Between distance, so keep ground wire movable contact 51 and ground connection stationary contact 141 touch state constant in the case of, reset key 3
Under the elastic force effect of big spring 12, the head promoting pressure arm about 10 two arm 101 and zero line shell fragment 4 and live wire shell fragment 6 is same
Shi Shangyi, makes zero line movable contact 41 the most just touch electricity with zero line stationary contact 161 and live wire movable contact 61 with live wire stationary contact 151
Connect, reached the ground wire when switching on power and first connected, the purpose connected after zero line and live wire；
During dropout power-off, as shown in FIG. 6 and 7, tripping coil 9 switches on power, and dynamic ferrum is inhaled in the magnetic field that tripping coil 9 produces
Core 7 is moved rearwards by, and pulls the square aperture of dropout card 11 to depart from the locating groove 321 of depression bar 32, reset key 3 and pressure arm 10
Threading off under the effect of big spring 12 and separate, zero line shell fragment 4 and live wire shell fragment 6 are under the elastic force effect of self, and its head promotes
Pressure arm together moves down, and zero line movable contact 41 and zero line stationary contact 161 and live wire movable contact 61 are with live wire stationary contact 151 first
Separate；Big spring 12 pushes and moves on reset key 3 simultaneously, and first its postive stop baffle 31 touches the head of grounding elastic part 5, then
Further ibid move and promote the ground wire movable contact 51 on grounding elastic part the most just to separate with ground connection stationary contact 141, it is achieved thereby that
In electric leakage dropout power process, zero line movable contact 41 and zero line stationary contact 161 and live wire movable contact 61 and live wire stationary contact 151
First separate, ground wire movable contact 51 and the effect separated after ground connection stationary contact 141, enable ground wire really to play its second protection and make
With, more safe and reliable.
In the present embodiment, described reset key 3 thus strengthens postive stop baffle 31 with depression bar 32 not on same axis
Set up the platform area of grounding elastic part 5.
Above in association with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to institute
The embodiment described.For the ordinary skill in the art, without departing from principle of the present utility model and objective
In the case of these embodiments are carried out multiple change, revise, replace and deform and still fall within protection domain of the present utility model
In.
Claims (2)
1. the leakage protecting plug that extremely breaks, it is characterised in that including:
Shell (1) and wiring board (2)；Described wiring board (2) is arranged in shell (1)；
Reset key (3)；Described reset key (3) is located in shell (1) and can axially move up and down, reset key (3) upper
End is stretched out shell (1) through wiring board (2) and outward thus is formed press section, is provided with postive stop baffle (31) on reset key (3),
It is provided with depression bar (32) in the lower section of reset key (3), depression bar (32) is provided with locating groove (321)；
Zero line shell fragment (4), grounding elastic part (5) and live wire shell fragment (6)；Described zero line shell fragment (4), grounding elastic part (5) and live wire bullet
The afterbody of sheet (6) is separately mounted to wiring board (2) and above and electrically connects, at zero line shell fragment (4), grounding elastic part (5) and live wire shell fragment
(6) head is respectively equipped with zero line movable contact (41), ground wire movable contact (51) and live wire movable contact (61), grounding elastic part (5)
Head is positioned at the top of postive stop baffle (31)；
Iron core (7), little spring (8), tripping coil (9) and dropout card (11)；Described iron core (7) and little spring (8) are each provided at
The in-core of tripping coil (9), iron core (7) can move by horizontal axis at the in-core of tripping coil (9), and one end of little spring (8) is supported
Leaning against the in-core afterbody of tripping coil (9), the other end of little spring (8) is resisted against the afterbody of iron core (7), described dropout card
(11) in opening chute is fastened on the head draw-in groove of iron core (7) and can move up and down；
Pressure arm (10)；Described pressure arm (10) is set in depression bar (32) and above and can relatively move up and down, and divides in the both sides of pressure arm (10)
Not being provided with arm (101), be provided with socket (102) at the middle part of pressure arm (10), the square aperture of described dropout card (11) is positioned at
In the socket (102) of pressure arm (10), dropout card (11) along with the elastic force of little spring (8) promote iron core (7) to move forward time, de-
The square aperture of buckle sheet (11) can snap in and make reset key (3) be integrated with pressure arm (10) snap close in locating groove (321), institute
State zero line shell fragment (4) and live wire shell fragment (6) bears against on two arms (101) of pressure arm (10)；
Big spring (12) and dropout frame (13)；Described dropout frame (13) is arranged on wiring board (2), and described tripping coil (9) is pacified
Being contained in dropout frame (13), be equipped with longitudinal opening chute (131) in the both sides of dropout frame (13), described pressure arm (10) is positioned at
In dropout frame (13), its two arm (101) and can move up and down in opening chute (131)；The lower end of described big spring (12)
Being resisted against the bottom in shell (1), the upper end of big spring (12) is resisted against the afterbody of depression bar (32), postive stop baffle (31) and big bullet
Spring (12) coordinates the head promoting grounding elastic part (5) to move up；
Grounding pin (14), fire-wire power pin (15) and zero line power pin (16)；Insert at grounding pin (14), fire-wire power
It is quiet that the upper end of foot (15) and zero line power pin (16) is respectively equipped with ground connection stationary contact (141), live wire stationary contact (151) and zero line
Contact (161), described grounding pin (14), fire-wire power pin (15) and zero line power pin (16) are separately fixed at dropout frame
(13), on, described grounding pin (14), fire-wire power pin (15) and zero line power pin (16) are worn respectively in shell (1)
Going out, ground connection stationary contact (141) is corresponding with ground wire movable contact (51) and can touch electrical connection, live wire stationary contact (151) and live wire
Movable contact (61) is corresponding and can touch electrical connection, and zero line stationary contact (161) is corresponding with zero line movable contact (41) and can touch
Electrical connection.
The most according to claim 1 three extremely break leakage protecting plug, it is characterised in that described reset key (3) and depression bar
(32) not on same axis thus strengthen postive stop baffle (31) and set up the platform area of grounding elastic part (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620591872.4U CN205693086U (en) | 2016-06-17 | 2016-06-17 | Three extremely break leakage protecting plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620591872.4U CN205693086U (en) | 2016-06-17 | 2016-06-17 | Three extremely break leakage protecting plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693086U true CN205693086U (en) | 2016-11-16 |
Family
ID=57415512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620591872.4U Active CN205693086U (en) | 2016-06-17 | 2016-06-17 | Three extremely break leakage protecting plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025721A (en) * | 2016-06-17 | 2016-10-12 | 佛山市顺德区信辉达电子有限公司 | Three-pole power-off and leakage protection plug |
| CN107946843A (en) * | 2017-12-18 | 2018-04-20 | 佛山市顺德区澳骏电子科技有限公司 | A kind of three poles power-off leakage protecting plug |
-
2016
- 2016-06-17 CN CN201620591872.4U patent/CN205693086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025721A (en) * | 2016-06-17 | 2016-10-12 | 佛山市顺德区信辉达电子有限公司 | Three-pole power-off and leakage protection plug |
| CN107946843A (en) * | 2017-12-18 | 2018-04-20 | 佛山市顺德区澳骏电子科技有限公司 | A kind of three poles power-off leakage protecting plug |
| CN107946843B (en) * | 2017-12-18 | 2024-03-22 | 佛山市顺德区澳骏电子科技有限公司 | Tripolar outage earth leakage protection plug |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |