CN109411966B - Leakage protection plug - Google Patents
Leakage protection plug Download PDFInfo
- Publication number
- CN109411966B CN109411966B CN201811441367.1A CN201811441367A CN109411966B CN 109411966 B CN109411966 B CN 109411966B CN 201811441367 A CN201811441367 A CN 201811441367A CN 109411966 B CN109411966 B CN 109411966B
- Authority
- CN
- China
- Prior art keywords
- live wire
- pin
- circuit board
- zero line
- output pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003068 static effect Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 230000007935 neutral effect Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims 3
- 238000002955 isolation Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
- H01R13/703—Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts, e.g. dual-continuity coupling part
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Breakers (AREA)
Abstract
The invention relates to an electric leakage protection plug, which comprises a shell, a circuit board, a tripping device, a live wire movable contact piece, a zero line movable contact piece, a mounting rack and a transformer, wherein the circuit board is arranged on the shell; the device is characterized in that the installation frame is also provided with a live wire pin structure and a zero wire pin structure respectively; the live wire pin structure comprises a live wire pin, a first live wire output pin and a second live wire output pin which are electrically connected with each other, the zero wire pin structure comprises a zero wire pin, a first zero wire output pin and a second zero wire output pin which are electrically connected with each other, the zero wire pin penetrates through the shell to be electrically connected with external alternating current, the first zero wire output pin is located on the outer side of the transformer to be electrically connected with the circuit board, and the second zero wire output pin penetrates through the transformer to be electrically connected with a zero wire static contact. The advantages are that: the novel UL standard can be achieved, and the circuit board can carry out self-checking on each element of the circuit board, so that the safety is high.
Description
Technical Field
The invention relates to a leakage protection plug.
Background
The current transformer of earth leakage protection plug includes circuit board, release and transformer, and the transformer is installed at the output of plug. When the electric leakage protection device is used, alternating current passes through the release and then passes through the mutual inductor, when leakage current occurs, a mutual induction transmission signal is given to a circuit board of the electric leakage protection plug, and the circuit board controls the release to be powered off. The existing design can not meet the new UL standard, the circuit board can not carry out self-checking on each element of the circuit board, and potential safety hazards exist.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the leakage protection plug which can reach the new UL standard, and the circuit board can carry out self-checking on each element of the circuit board, so that the safety is high.
In order to achieve the above purpose, the invention is realized in such a way that the leakage protection plug comprises a shell, a circuit board, a tripping device, a live wire movable contact, a zero line movable contact, a mounting rack and a mutual inductor; the circuit board is arranged in the shell, the mounting frame is arranged on the circuit board, a trip device placing position is arranged on the mounting frame, and the trip device is arranged in the trip device placing position and is electrically connected with the circuit board; the circuit board is respectively provided with a live wire static contact and a zero wire static contact, and the live wire static contact and the zero wire static contact are respectively and electrically connected with an external electrical appliance; one ends of the live wire movable contact and the zero line movable contact are respectively arranged on the circuit board and are electrically connected with the circuit board, the other end of the live wire movable contact is propped against an arm of the tripping device and can be in touch electrical connection with the live wire fixed contact, and the other end of the zero line movable contact is propped against the other arm of the tripping device and can be in touch electrical connection with the zero line fixed contact; the mutual inductor is positioned in the shell and is electrically connected with the circuit board; the installation frame is also provided with a live wire pin structure and a zero wire pin structure respectively; the live wire pin structure comprises a live wire pin, a first live wire output pin and a second live wire output pin which are mutually and electrically connected, wherein the live wire pin penetrates through the shell to be electrically connected with external alternating current, the first live wire output pin is positioned at the outer side of the transformer and is electrically connected with the circuit board, and the second live wire output pin penetrates through the transformer and is electrically connected with the live wire static contact; the zero line pin structure comprises a zero line pin, a first zero line output pin and a second zero line output pin which are electrically connected with each other, wherein the zero line pin penetrates through the shell to be electrically connected with external alternating current, the first zero line output pin is positioned on the outer side of the transformer to be electrically connected with the circuit board, and the second zero line output pin penetrates through the transformer to be electrically connected with the zero line static contact.
In this technical scheme still be equipped with the mutual-inductor on the mounting bracket and put the position, the mutual-inductor is placed in the mutual-inductor and is put the position.
In the technical scheme, a first bearing part is arranged at the joint of the second live wire output pin and the live wire pin, and a second bearing part is arranged at the joint of the second zero wire output pin and the zero wire pin; the transformer is sleeved on the second live wire output pin and the second zero line output pin and is supported on the first supporting portion and the second supporting portion.
In this technical scheme the junction of first live wire output foot and live wire pin is equipped with third supporting portion first zero line output foot is equipped with fourth supporting portion with the junction of zero line pin, the mutual-inductor still supports on third supporting portion and fourth supporting portion.
In the technical scheme, a live wire movable contact is arranged on the live wire movable contact; the live wire movable contact is positioned below the live wire fixed contact and is in touch electrical connection with the live wire fixed contact under the drive of the tripping device; and the zero line movable contact is arranged on the zero line movable contact and is positioned below the zero line fixed contact and is in touch electric connection with the zero line fixed contact under the driving of the tripping device.
In the technical scheme, a live wire conducting plate and a zero wire conducting plate are respectively arranged on the circuit board; one end of the fire wire conducting strip is connected with the second fire wire output pin, and the other end of the fire wire conducting strip is connected with the fire wire static contact; one end of the zero line conducting strip is connected with the second zero line output pin, and the other end of the zero line conducting strip is connected with the zero line static contact.
In this technical scheme still be equipped with the division board on the mounting bracket, thereby second live wire output foot and second zero line output foot are located the both sides of division board respectively and play the effect of isolation.
In the technical scheme, the tripping device comprises a reset button, an iron core, a small spring, a tripping coil, a tripping card, a pressing arm and a large spring; the reset key is arranged in the shell and can axially move up and down, the upper end part of the reset key penetrates through the circuit board and extends out of the shell to form a pressing part, and a positioning clamping groove is formed in the reset key; the tripping coil is electrically connected with the circuit board, the iron core and the small spring are arranged in the tripping coil, the iron core can horizontally move in the tripping coil, the right end of the small spring is propped against the tripping coil, the left end of the small spring is propped against the right end of the iron core, the right end of the tripping card is clamped at the left end of the iron core and can move up and down, the pressing arm is sleeved on the reset key and can relatively move up and down, a socket is arranged in the middle of the pressing arm, the left part of the tripping card is clamped in the socket, and when the tripping card pushes the iron core to move leftwards along with the elastic force of the small spring, the left part of the tripping card can be clamped into the positioning clamping groove and the socket to enable the reset key to be locked with the pressing arm into a whole; the lower extreme of big spring is installed on the circuit board, and the upper end of big spring is installed on reset button, the arm is established respectively in the both sides of pressing the arm, and the arm can reciprocate in the opening spout of mounting bracket both sides.
Compared with the prior art, the invention has the advantages that: the standard of new UL can be reached, and the circuit board can carry out self-checking to each component of self, and the security is high.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the internal structure of the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a perspective view of the circuit board of FIG. 2 with the circuit board removed;
fig. 5 is a front view of fig. 2;
FIG. 6 is a cross-sectional view A-A of FIG. 5;
FIG. 7 is a left side view of FIG. 2;
FIG. 8 is a B-B cross-sectional view of FIG. 7;
fig. 9 is a perspective view of the invention with the hot pin, neutral pin and transformer mated;
fig. 10 is an exploded view of fig. 9.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present invention, but is not intended to limit the present invention. In addition, technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
In the description of the present invention, the azimuth or positional relationship indicated by the terms "left" and "right" and the like are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
As shown in fig. 1 to 10, the earth leakage protection plug comprises a housing 1, a circuit board 2, a tripping device 3, a live wire movable contact 4, a neutral wire movable contact 5, a mounting frame 6, a transformer 7, a live wire pin structure 8 and a neutral wire pin structure 9, wherein
The circuit board 2 is arranged in the shell 1, the mounting frame 6 is arranged on the circuit board 2, a trip device placement position 61 is arranged on the mounting frame 6, and the trip device 3 is arranged in the trip device placement position 61 and is electrically connected with the circuit board 2; a live wire fixed contact 21 and a zero line fixed contact 22 are respectively arranged on the circuit board 2, and the live wire fixed contact 21 and the zero line fixed contact 22 are respectively and electrically connected with an external electrical appliance; one ends of the live wire movable contact 4 and the zero wire movable contact 5 are respectively arranged on the circuit board 2 and are electrically connected with the circuit board 2, the other end of the live wire movable contact 4 is abutted against an arm 361 of the tripping device 3 and can be in touch electrical connection with the live wire fixed contact 21, and the other end of the zero wire movable contact 5 is abutted against the other arm 361 of the tripping device 3 and can be in touch electrical connection with the zero wire fixed contact 22; the mutual inductor 7 is positioned in the shell 1 and is electrically connected with the circuit board 2; the device is characterized in that a live wire pin structure 8 and a zero wire pin structure 9 are respectively arranged on the mounting frame 6; the fire wire pin structure 8 comprises a fire wire pin 81, a first fire wire output pin 82 and a second fire wire output pin 83 which are mutually and electrically connected, wherein the fire wire pin 81 passes through the shell 1 to be electrically connected with external alternating current, the first fire wire output pin 82 is positioned at the outer side of the transformer 7 and is electrically connected with the circuit board 2, and the second fire wire output pin 83 passes through the transformer 7 and is electrically connected with the fire wire static contact 21; the zero line pin structure 9 comprises a zero line pin 91, a first zero line output pin 92 and a second zero line output pin 93 which are electrically connected with each other, the zero line pin 91 penetrates through the shell 1 to be electrically connected with external alternating current, the first zero line output pin 92 is located on the outer side of the transformer 7 to be electrically connected with the circuit board 2, and the second zero line output pin 93 penetrates through the transformer 7 to be electrically connected with the zero line static contact 22.
When leakage current passes through the second live wire output pin 83 and the second zero line output pin 93, the second live wire output pin 83 and the second zero line output pin 93 are respectively induced with the mutual inductor 7, the magnetic flux of the mutual inductor 7 changes to generate signals, the signals are transmitted to the circuit board 2, and the circuit board 2 controls the tripping device 3 to trip and cut off the power; the structure can reach the standard of new UL and realize the function of self-checking the self-element of the circuit board 2.
In this embodiment, a transformer placement position 62 is further provided on the mounting frame 6, and the transformer 7 is placed in the transformer placement position 62.
In this embodiment, a first supporting portion 831 is disposed at the connection between the second live wire output pin 83 and the live wire pin 81, and a second supporting portion 931 is disposed at the connection between the second neutral wire output pin 93 and the neutral wire pin 91; the transformer 7 is sleeved on the second live wire output pin 83 and the second neutral wire output pin 93 and is supported on the first supporting portion 831 and the second supporting portion 931.
In this embodiment, a third supporting portion 821 is provided at the connection between the first live wire output pin 82 and the live wire pin 81, a fourth supporting portion 921 is provided at the connection between the first neutral wire output pin 92 and the neutral wire pin 81, and the transformer 7 is further supported on the third supporting portion 821 and the fourth supporting portion 921.
In this embodiment, the live wire moving contact 41 is disposed on the live wire moving contact 4; the live wire movable contact 41 is positioned below the live wire fixed contact 21 and is in touch electrical connection with the live wire fixed contact 21 under the drive of the tripping device 3; the zero line movable contact 51 is arranged on the zero line movable contact 5, and the zero line movable contact 51 is positioned below the zero line fixed contact 22 and is in touch electrical connection with the zero line fixed contact 22 under the driving of the tripping device 3.
In this embodiment, a live wire conductive sheet 23 and a neutral wire conductive sheet 24 are respectively mounted on the circuit board 2; one end of the live wire conducting strip 23 is connected with the second live wire output pin 83, and the other end is connected with the live wire stationary contact 21; one end of the zero line conducting strip 24 is connected with the second zero line output pin 93, and the other end is connected with the zero line stationary contact 22.
In this embodiment, the partition plate 64 is further disposed on the mounting frame 6, and the second live wire output pin 83 and the second neutral wire output pin 93 are respectively located at two sides of the partition plate 64, so as to play a role in isolation, thereby preventing mutual interference between the second live wire output pin 83 and the second neutral wire output pin 93.
In this embodiment, the trip device 3 includes a reset button 31, an iron core 32, a small spring 33, a trip coil 34, a trip card 35, a pressing arm 36, and a large spring 37; the reset key 31 is arranged in the shell 1 and can axially move up and down, the upper end part of the reset key 31 penetrates through the circuit board 2 and extends out of the shell 1 to form a pressing part, and a positioning clamping groove 311 is formed in the reset key 31; the trip coil 34 is electrically connected with the circuit board 2, the iron core 32 and the small spring 33 are both arranged in the trip coil 34, the iron core 32 can horizontally move in the trip coil 34, the right end of the small spring 33 is abutted against the trip coil 34, the left end of the small spring 33 is abutted against the right end of the iron core 32, the right end of the trip card 35 is clamped at the left end of the iron core 32 and can move up and down, the pressing arm 36 is sleeved on the reset key 31 and can relatively move up and down, a socket 362 is arranged in the middle of the pressing arm 36, the left part of the trip card 35 is clamped in the socket 362, and when the trip card 35 pushes the iron core 32 to move leftwards along with the elastic force of the small spring 33, the left part of the trip card 35 can be clamped into the positioning clamping groove 311 and the socket 362 to enable the reset key 31 to be locked with the pressing arm 36 into a whole; the lower end of the big spring 37 is arranged on the circuit board 2, the upper end of the big spring 37 is arranged on the reset button 31, the arms 361 are respectively arranged at two sides of the pressing arm 36, and the arms 361 can move up and down in the opening sliding grooves 63 at two sides of the mounting frame 6.
The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides a leakage protection plug, includes casing (1), circuit board (2), trip gear (3), live wire movable contact (4), zero line movable contact (5), mounting bracket (6) and mutual-inductor (7); the circuit board (2) is arranged in the shell (1), the mounting frame (6) is arranged on the circuit board (2), a trip device placing position (61) is arranged on the mounting frame (6), and the trip device (3) is arranged in the trip device placing position (61) and is electrically connected with the circuit board (2); a live wire fixed contact (21) and a zero line fixed contact (22) are respectively arranged on the circuit board (2), and the live wire fixed contact (21) and the zero line fixed contact (22) are respectively and electrically connected with an external electrical appliance; one ends of the live wire movable contact (4) and the zero wire movable contact (5) are respectively arranged on the circuit board (2) and are electrically connected with the circuit board (2), the other end of the live wire movable contact (4) is abutted against an arm (361) of the tripping device (3) and can be in touch electrical connection with the live wire fixed contact (21), and the other end of the zero wire movable contact (5) is abutted against the other arm (361) of the tripping device (3) and can be in touch electrical connection with the zero wire fixed contact (22); the mutual inductor (7) is positioned in the shell (1) and is electrically connected with the circuit board (2); the device is characterized in that a live wire pin structure (8) and a zero wire pin structure (9) are respectively arranged on the mounting frame (6); the live wire pin structure (8) comprises a live wire pin (81), a first live wire output pin (82) and a second live wire output pin (83) which are electrically connected with each other, the live wire pin (81) penetrates through the shell (1) to be electrically connected with external alternating current, the first live wire output pin (82) is positioned on the outer side of the transformer (7) and is electrically connected with the circuit board (2), and the second live wire output pin (83) penetrates through the transformer (7) and is electrically connected with the live wire fixed contact (21); the zero line pin structure (9) comprises a zero line pin (91), a first zero line output pin (92) and a second zero line output pin (93) which are electrically connected with each other, wherein the zero line pin (91) passes through the shell (1) to be electrically connected with external alternating current, the first zero line output pin (92) is positioned at the outer side of the transformer (7) to be electrically connected with the circuit board (2), and the second zero line output pin (93) passes through the transformer (7) to be electrically connected with the zero line stationary contact (22);
the mounting frame (6) is also provided with a mutual inductor placing position (62), and the mutual inductor (7) is placed in the mutual inductor placing position (62);
a first bearing part (831) is arranged at the joint of the second live wire output pin (83) and the live wire pin (81), and a second bearing part (931) is arranged at the joint of the second neutral wire output pin (93) and the neutral wire pin (91); the mutual inductor (7) is sleeved on the second live wire output pin (83) and the second zero line output pin (93) and is supported on the first supporting part (831) and the second supporting part (931);
a third bearing part (821) is arranged at the joint of the first live wire output pin (82) and the live wire pin (81), a fourth bearing part (921) is arranged at the joint of the first zero wire output pin (92) and the zero wire pin (81), and the transformer (7) is also supported on the third bearing part (821) and the fourth bearing part (921);
the installation frame (6) is also provided with a separation plate (64), and the second live wire output pin (83) and the second zero wire output pin (93) are respectively positioned at two sides of the separation plate (64) so as to play a role in separation;
a live wire movable contact (41) is arranged on the live wire movable contact piece (4); the live wire movable contact (41) is positioned below the live wire fixed contact (21) and is in touch electrical connection with the live wire fixed contact (21) under the driving of the tripping device (3); a zero line movable contact (51) is arranged on the zero line movable contact (5), and the zero line movable contact (51) is positioned below the zero line fixed contact (22) and is in touch electric connection with the zero line fixed contact (22) under the driving of the tripping device (3);
a live wire conducting plate (23) and a zero wire conducting plate (24) are respectively arranged on the circuit board (2); one end of the live wire conducting strip (23) is connected with a second live wire output pin (83), and the other end of the live wire conducting strip is connected with a live wire static contact (21); one end of the zero line conducting strip (24) is connected with the second zero line output pin (93), and the other end is connected with the zero line stationary contact (22).
2. The earth leakage protection plug according to claim 1, characterized in that the trip device (3) comprises a reset key (31), an iron core (32), a small spring (33), a trip coil (34), a trip card (35), a pressing arm (36) and a large spring (37); the reset key (31) is arranged in the shell (1) and can axially move up and down, the upper end part of the reset key (31) penetrates through the circuit board (2) and stretches out of the shell (1) to form a pressing part, and the reset key (31) is provided with a positioning clamping groove (311); the tripping coil (34) is electrically connected with the circuit board (2), the iron core (32) and the small spring (33) are arranged in the tripping coil (34), the iron core (32) can horizontally move in the tripping coil (34), the right end of the small spring (33) is propped against the tripping coil (34), the left end of the small spring (33) is propped against the right end of the iron core (32), the right end of the tripping card (35) is clamped at the left end of the iron core (32) and can move up and down, the pressing arm (36) is sleeved on the reset key (31) and can relatively move up and down, a socket (362) is arranged in the middle of the pressing arm (36), the left part of the tripping card (35) is clamped in the socket (362), and when the elastic force of the tripping card (35) pushes the iron core (32) to move leftwards along with the small spring, the left part of the tripping card (35) can be clamped into the positioning card slot (311) and the socket (362) to lock the reset key (31) and the pressing arm (36) into a whole; the lower extreme of big spring (37) is installed on circuit board (2), and the upper end of big spring (37) is installed on reset button (31), arm (361) are established respectively in the both sides of pressing arm (36), and arm (361) can reciprocate in opening spout (63) of mounting bracket (6) both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441367.1A CN109411966B (en) | 2018-11-29 | 2018-11-29 | Leakage protection plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811441367.1A CN109411966B (en) | 2018-11-29 | 2018-11-29 | Leakage protection plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109411966A CN109411966A (en) | 2019-03-01 |
| CN109411966B true CN109411966B (en) | 2023-11-17 |
Family
ID=65456255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811441367.1A Active CN109411966B (en) | 2018-11-29 | 2018-11-29 | Leakage protection plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109411966B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111969374B (en) * | 2020-09-17 | 2024-09-17 | 余姚市中建电器有限公司 | Leakage protection plug |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549711U (en) * | 2009-09-21 | 2010-08-11 | 康佳集团股份有限公司 | Power plug and electric apparatus |
| 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 |
| 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 |
| CN208001053U (en) * | 2018-04-08 | 2018-10-23 | 佛山市顺德区信辉达电子有限公司 | Socket with earth leakage protective device |
-
2018
- 2018-11-29 CN CN201811441367.1A patent/CN109411966B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201549711U (en) * | 2009-09-21 | 2010-08-11 | 康佳集团股份有限公司 | Power plug and electric apparatus |
| 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 |
| 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 |
| CN208001053U (en) * | 2018-04-08 | 2018-10-23 | 佛山市顺德区信辉达电子有限公司 | Socket with earth leakage protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109411966A (en) | 2019-03-01 |
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