CN212517094U - Leakage coil tripping mechanism and leakage protection socket - Google Patents
Leakage coil tripping mechanism and leakage protection socket Download PDFInfo
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- CN212517094U CN212517094U CN202021337392.8U CN202021337392U CN212517094U CN 212517094 U CN212517094 U CN 212517094U CN 202021337392 U CN202021337392 U CN 202021337392U CN 212517094 U CN212517094 U CN 212517094U
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Abstract
The utility model relates to a simple structure, better earth leakage coil tripping device of sensitivity and earth leakage protection socket. The technical scheme adopted comprises the following steps: control circuit board and install mutual-inductor, canceling release mechanical system, electromagnetism release on the control circuit board, the mutual-inductor both sides are equipped with binding post, binding post's the inner is arranged in the mutual-inductor, and through special wire and setting up be in moving contact on the canceling release mechanical system is connected its characterized in that: the reset mechanism comprises a fixed seat, a movable seat, a trip rod and a movable pin; the fixed seat is fixed on the control circuit board; the movable seat is arranged in the fixed seat in a vertically sliding manner, the two ends of the movable seat are provided with the movable contacts, and the middle of the movable seat is provided with a vertically through center hole.
Description
Technical Field
The utility model relates to a leakage protection socket.
Background
The tradition is applied to earth leakage coil tripping device of earth leakage protection socket, and its structure includes: the control circuit board, and a mutual inductor, a reset mechanism and an electromagnetic release which are arranged on the control circuit board. And the inner ends of the wiring terminals are arranged in the mutual inductor and are connected with the moving contact on the reset mechanism through special wires. The reset mechanism comprises a fixed seat, a movable seat, a trip bar and a movable pin, wherein the fixed seat is fixed on the control circuit board, the movable seat is arranged in the fixed seat in a vertically sliding manner, and the two ends of the movable seat are provided with the movable contacts. When leakage tripping occurs, the movable iron core of the electromagnetic tripping device is sucked and pulled back, so that the movable pin is separated from the tripping rod, and finally, the movable contact on the movable seat is separated from the fixed contact in the socket under the action of the spring, thereby realizing open circuit protection. There are disadvantages in that: the sensitivity of the traditional leakage coil tripping mechanism is not particularly ideal and the structure is complex.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a simple structure, better earth leakage coil tripping device of sensitivity and earth leakage protection socket.
In order to solve the above problem, the utility model discloses a technical scheme include: control circuit board and install mutual-inductor, canceling release mechanical system, electromagnetism release on the control circuit board, the mutual-inductor both sides are equipped with binding post, binding post's the inner is arranged in the inside of mutual-inductor, and through special wire and setting up be in moving contact on the canceling release mechanical system is connected its characterized in that: the reset mechanism comprises a fixed seat, a movable seat, a trip rod and a movable pin; the fixed seat is fixed on the control circuit board; the movable seat is arranged in the fixed seat in a vertically sliding manner, the two ends of the movable seat are provided with the movable contacts, and the middle of the movable seat is provided with a vertically through center hole; the lower end of the tripping rod is arranged in a central hole of the movable seat, a hook is arranged on the side close to the mutual inductor, a first reset spring and a second reset spring are arranged on the tripping rod, and the elasticity of the first reset spring is greater than that of the second reset spring; the movable pin is movably arranged between the movable seat and the fixed seat, the front end of the movable pin is provided with a pin hole corresponding to the central hole of the trip rod, and a third return spring is arranged between the rear end of the movable pin and the movable seat.
The leakage coil tripping mechanism is characterized in that: and one side of the fixed seat, which corresponds to the electromagnetic release, is provided with a positioning column, and a coil framework of the electromagnetic release is provided with a positioning groove which is matched with the positioning column.
The leakage coil tripping mechanism is characterized in that: the mutual inductor is connected with the control circuit board through an isolation column arranged in a center hole, and the inner end of the wiring terminal is arranged on two sides of the isolation column.
The leakage coil tripping mechanism is characterized in that: the movable pin is L-shaped.
The leakage coil tripping mechanism is characterized in that: the movable seat is in up-and-down sliding fit with the fixed seat through the positioning grooves on the two sides.
The leakage coil tripping mechanism is characterized in that: one end of the movable seat is provided with a return spring positioning groove, and the rear end of the pin hole is provided with a return spring positioning salient point.
The utility model provides a leakage protection socket, includes leakage protection socket ontology, its characterized in that: the leakage protection socket body is internally provided with the leakage coil tripping mechanism.
The utility model discloses an electric leakage coil tripping device and earth leakage protection socket's advantage as follows: when the leakage tripping occurs, the movable iron core of the electromagnetic tripping device is ejected forwards to drive the movable pin to be separated from the tripping rod, and finally, the movable contact on the movable seat is separated from the fixed contact in the socket under the action of the spring.
Drawings
The present invention will be further explained with reference to the drawings attached to the specification.
Fig. 1 is a schematic structural view of the leakage coil tripping mechanism of the present invention;
fig. 2 is a cross-sectional view of the leakage coil trip mechanism of the present invention;
FIG. 3 is a schematic structural view of the movable seat of the present invention;
FIG. 4 is a schematic structural view of the trip bar of the present invention;
FIG. 5 is a schematic structural view of the movable pin of the present invention;
fig. 6 is a schematic structural view of the fixing base of the present invention;
fig. 7 is a schematic structural view of the coil bobbin of the present invention;
fig. 8 is a front view of the earth leakage protection socket of the present invention;
FIG. 9 is a sectional view taken along line A-A of FIG. 8;
fig. 10 is a sectional view taken along line B-B of fig. 8.
Detailed Description
Example 1:
referring to fig. 1-7, the leakage coil tripping mechanism of the present invention comprises a control circuit board 1, and a mutual inductor 2, a resetting mechanism 3 and an electromagnetic trip 4 mounted on the control circuit board 1. The mutual inductor 2 and the electromagnetic release 4 are respectively arranged on two sides of the reset mechanism 3. The two sides of the mutual inductor 2 are provided with connecting terminals 5, and the inner ends of the connecting terminals 5 are arranged in the mutual inductor 2 and are connected with a moving contact 6 arranged on the reset mechanism 3 through a special wire 21. The resetting mechanism 3 comprises a fixed seat 7, a movable seat 8, a trip rod 9 and a movable pin 10. The fixing seat 7 is fixed on the control circuit board 1. The movable seat 8 is arranged in the fixed seat 7 in a vertically sliding manner, the movable contacts 6 are arranged at two ends of the movable seat, and a vertically through center hole 11 is formed in the middle of the movable seat. The lower end of the trip rod 9 is arranged in a center hole 11 of the movable seat 8, and a hook 12 is arranged on the side close to the mutual inductor 2. The trip rod 9 is provided with a first return spring 13 and a second return spring 14, the elasticity of the first return spring 13 is larger than that of the second return spring 14, and the upper end of the trip rod 9 is provided with a pressing cap 25 and a positioning arm 26. The electromagnetic release 4 comprises a magnetic yoke 27, a movable iron core 28 and a coil framework 17. When the leakage protection socket is applied, the lower end of the first return spring 13 and the upper end of the second return spring 14 respectively use the internal structure of the leakage protection socket as a supporting point to apply elastic force to the trip bar 9 in opposite directions. The movable pin 10 is L-shaped, the movable pin is movably arranged between the movable seat 8 and the fixed seat 7, the front end of the movable pin 10 is provided with a pin hole 23 corresponding to the central hole 11 of the trip rod 9, and the rear end of the movable pin 10 is provided with a third return spring 15 between the movable seat 8 and used for returning the movable pin 10. When the trip bar 9 is pressed down to make the hook 12 at the top of the trip bar hooked with the pin hole 23 of the movable pin 10, the movable seat 8 and the movable contact 6 arranged on the movable seat 8 are lifted under the action of the first return spring 13, so that the movable contact 6 is contacted with a static contact inside the earth leakage protection socket, and the circuit is connected. When leakage tripping occurs, the movable iron core of the electromagnetic tripping device is ejected out to drive the movable pin to move forward, so that the pin hole of the movable pin is separated from the tripping rod, at the moment, the first reset spring 13 releases pressure, and simultaneously, under the action of the second reset spring 14, the movable seat 8 and the movable contact 6 arranged on the movable seat 8 are reset, so that the movable contact on the movable seat is separated from the fixed contact in the socket, and thus, the open circuit protection is realized.
Preferably, a positioning column 16 is arranged on one side of the fixed seat 7 corresponding to the electromagnetic trip 4, and a positioning groove 18 corresponding to the positioning column 16 is arranged on a coil framework 17 of the electromagnetic trip 4. The coil frame 17 is positioned by the positioning column 16, so that the stability of the electromagnetic release 4 after installation is further improved.
Preferably, the mutual inductor 2 is connected with the control circuit board 1 through an isolation column 19 arranged in a central hole, and the inner ends of the wiring terminals 5 are arranged on two sides of the isolation column 19. The isolation column 19 is used for facilitating the connection between the mutual inductor 2 and the control circuit board 1, and meanwhile, the wiring terminals 5 at two ends can be separated, so that the occurrence of lines or electric arcs is prevented, and the safety is ensured.
Preferably, the movable seat 8 is in up-and-down sliding fit with the fixed seat 7 through the positioning grooves 18 on two sides, so that the up-and-down sliding is more stable.
Preferably, one end of the movable seat 8 is provided with a return spring positioning slot 22, and the rear end of the pin hole 23 is provided with a return spring positioning salient point 24. And two ends of the third return spring 15 are respectively connected with the return spring positioning groove 22 and the return spring positioning salient point 24 so as to ensure the stability of the user.
Example 2:
referring to fig. 8-10, the leakage protection socket of the present invention includes a leakage protection socket body 20, where the leakage protection socket body 20 includes a housing 29, a plug spring assembly 30 disposed in the housing 29, and a leakage coil tripping mechanism according to embodiment 1. The plug spring assembly 30 is connected with a fixed contact 31, and the fixed contact 31 is arranged above the movable contact 6 of the leakage coil tripping mechanism. The button 25 of the trip lever 9 extends out of the upper surface of the shell 29, and the positioning arm 26 of the trip lever 9 is matched with the shell 29 in a positioning way.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The utility model provides a leakage coil tripping device, includes control circuit board (1) and installs mutual-inductor (2), canceling release mechanical system (3), electromagnetism release (4) on control circuit board (1), mutual-inductor (2) both sides are equipped with binding post (5), the inner of binding post (5) is arranged in the inside of mutual-inductor (2), and through special wire (21) and setting up be in moving contact (6) on canceling release mechanical system (3) are connected its characterized in that: the reset mechanism (3) comprises a fixed seat (7), a movable seat (8), a trip rod (9) and a movable pin (10); the fixed seat (7) is fixed on the control circuit board (1); the movable seat (8) is arranged in the fixed seat (7) in a vertically sliding manner, the two ends of the movable seat are provided with the movable contacts (6), and the middle of the movable seat is provided with a vertically through center hole (11); the lower end of the trip rod (9) is arranged in a center hole (11) of the movable seat (8), a hook (12) is arranged on the side close to the mutual inductor (2), a first reset spring (13) and a second reset spring (14) are arranged on the trip rod (9), and the elasticity of the first reset spring (13) is larger than that of the second reset spring (14); the movable pin (10) is movably arranged between the movable seat (8) and the fixed seat (7), the front end of the movable pin is provided with a pin hole (23) corresponding to the central hole (11) of the trip rod (9), and the rear end of the movable pin is provided with a third return spring (15) between the movable seat (8).
2. A leakage coil trip mechanism as claimed in claim 1, wherein: the fixing seat (7) is provided with a positioning column (16) corresponding to one side of the electromagnetic release (4), and a positioning groove (18) matched with the positioning column (16) is arranged on a coil framework (17) of the electromagnetic release (4).
3. A leakage coil trip mechanism as claimed in claim 1, wherein: the mutual inductor (2) is connected with the control circuit board (1) through an isolation column (19) arranged in a center hole, and the inner end of the wiring terminal (5) is arranged on two sides of the isolation column (19).
4. A leakage coil trip mechanism as claimed in claim 1, wherein: the movable pin (10) is L-shaped.
5. A leakage coil trip mechanism as claimed in claim 1, wherein: the movable seat (8) is in up-and-down sliding fit with the fixed seat (7) through the positioning grooves (18) on the two sides.
6. A leakage coil trip mechanism as claimed in claim 1, wherein: one end of the movable seat (8) is provided with a return spring positioning groove (22), and the rear end of the pin hole (23) is provided with a return spring positioning salient point (24).
7. An earth leakage protection socket, comprising an earth leakage protection socket body (20), characterized in that: the earth leakage protection socket body (20) is provided with the earth leakage coil trip mechanism of any one of claims 1-6 therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021337392.8U CN212517094U (en) | 2020-07-09 | 2020-07-09 | Leakage coil tripping mechanism and leakage protection socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021337392.8U CN212517094U (en) | 2020-07-09 | 2020-07-09 | Leakage coil tripping mechanism and leakage protection socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212517094U true CN212517094U (en) | 2021-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021337392.8U Active CN212517094U (en) | 2020-07-09 | 2020-07-09 | Leakage coil tripping mechanism and leakage protection socket |
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| Country | Link |
|---|---|
| CN (1) | CN212517094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116131013A (en) * | 2023-03-04 | 2023-05-16 | 法纳通电器(上海)有限公司 | Leakage protection socket |
-
2020
- 2020-07-09 CN CN202021337392.8U patent/CN212517094U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116131013A (en) * | 2023-03-04 | 2023-05-16 | 法纳通电器(上海)有限公司 | Leakage protection socket |
| CN116131013B (en) * | 2023-03-04 | 2023-12-01 | 法纳通电器(上海)有限公司 | Leakage protection socket |
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