CN210182290U - Circuit breaker permanent magnetism electric operating mechanism - Google Patents
Circuit breaker permanent magnetism electric operating mechanism Download PDFInfo
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- CN210182290U CN210182290U CN201921362054.7U CN201921362054U CN210182290U CN 210182290 U CN210182290 U CN 210182290U CN 201921362054 U CN201921362054 U CN 201921362054U CN 210182290 U CN210182290 U CN 210182290U
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Abstract
The utility model relates to a circuit breaker permanent magnetism electric operating mechanism, quiet iron core, move the iron core, the separating brake coil, closing coil, the permanent magnet, be provided with the cavity in the quiet iron core, it sets up in the cavity to move the iron core, the permanent magnet is installed on the lateral wall of cavity, the separating brake coil is installed at the lateral wall of cavity, closing coil also installs the lateral wall at the cavity, the upper end of moving the iron core is provided with the moving axis, the lower extreme is provided with down the moving axis, the last moving axis goes up the cover and has last copper sheathing, it fixes the upper end at quiet iron core to go up the copper sheathing, the cover has lower copper sheathing in the moving axis down, lower copper sheathing fixed mounting is at the lower extreme of quiet iron core down, the upper and. The utility model discloses a move iron core and quiet iron core contact surface and be the inclined plane, strengthened the effective drive stroke who moves the iron core. The permanent magnet electric operating mechanism adopts an inclined structure and a horizontal structure at the opening position end to combine, so that the force and displacement change of the opening tail section tend to be smooth, and the opening impact force is reduced.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a circuit breaker permanent magnetism electric operating mechanism.
Background
Compared with the traditional circuit breaker, the permanent magnet vacuum circuit breaker has the advantages of few moving parts, no need of a mechanical tripping and locking device, simple structure, high reliability, long mechanical service life and the like, thereby being widely applied.
However, the permanent magnet operating mechanism of the permanent magnet vacuum circuit breaker is a permanent magnet holding and electromagnetic driving operating mechanism, and the stroke of the operating mechanism is too short, the impact force is large during opening, and the operating mechanism is easily damaged, so that the service life is shortened, and the overall practicability is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circuit breaker permanent magnetism electric operating mechanism increases the drive stroke, the impact force when reducing the separating brake.
In order to realize the purpose, the utility model provides a permanent magnet electric operating mechanism of a circuit breaker, comprising a static iron core, a movable iron core, a switching-off coil, a switching-on coil and a permanent magnet, a cavity is arranged in the static iron core, the movable iron core is arranged in the cavity, the permanent magnet is arranged on the side wall of the cavity, the opening coil is arranged on the side wall of the cavity and positioned at the upper end of the permanent magnet, the closing coil is also arranged on the side wall of the cavity and positioned at the lower end of the permanent magnet, the upper end of the movable iron core is provided with an upper movable shaft, the lower end of the movable iron core is provided with a lower movable shaft, the upper movable shaft is sleeved with an upper copper sleeve, the upper copper sleeve is fixed at the upper end of the static iron core, the lower moving shaft is sleeved with a lower copper sleeve which is fixedly arranged at the lower end of the static iron core, the inner walls of the upper end and the lower end of the cavity are provided with inclined planes, and the upper end and the lower end of the movable iron core are also provided with corresponding inclined planes.
Furthermore, the inclined plane that the upper and lower wall of cavity set up with the inclined plane that the lower extreme set up on the movable iron core is 30 ~ 45 degrees.
Has the advantages that:
the utility model discloses a move the cavity contact surface of the last lower extreme of iron core and quiet iron core and be 30 ~ 45 degrees inclined planes, this kind of structure is keeping moving under the unchangeable prerequisite of magnetic field vertical distance between iron core and the quiet iron core, has increased the motion space to the effective drive stroke of moving the iron core has been increaseed. In order to reduce the impact force at the end of opening, the permanent magnet electric operating mechanism adopts a method of combining an inclined structure and a horizontal structure at the opening position end, and by adopting the structure, the magnetic flux entering the end face of the magnetic pole is dispersed during opening, and the magnetic pressure drop of each part is redistributed. The structure enables the force and displacement change of the tail section of the opening brake to tend to be smooth by changing the change rate of the magnetic resistance/distance, so that the purpose of reducing the impact force of the opening brake is achieved, and the service life of the permanent magnet electric operating mechanism is prolonged.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein the reference numerals are: 1-a stationary iron core; 2-opening coil; 3, closing a coil; 4-a permanent magnet; 5, a movable iron core; 6, arranging a copper sleeve; 7, arranging a copper sleeve; 8, moving down the shaft; 9-moving shaft up; 10-the cavity.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described below clearly and completely, and it is obvious that the embodiments described below are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides a permanent magnet electric operating mechanism of a circuit breaker, a static iron core 1, a movable iron core 5, a switching-off coil 2, closing coil 3, permanent magnet 4, be provided with cavity 10 in the quiet iron core 1, move iron core 5 and set up in cavity 10, permanent magnet 4 is installed on the lateral wall of cavity 10, separating brake coil 2 installs on the lateral wall of cavity 10 and is located the upper end of permanent magnet 4, closing coil 3 also installs on the lateral wall of cavity 10 and is located the lower extreme of permanent magnet 4, the upper end of moving iron core 5 is provided with last moving axis 9, the lower extreme is provided with lower moving axis 8, the cover has last copper sheathing 6 on last moving axis 9, it fixes the upper end at quiet iron core 1 to go up copper sheathing 6, the cover has lower copper sheathing 7 on lower moving axis 8, lower copper sheathing 7 fixed mounting is at the lower extreme of quiet iron core 1, the upper and lower end inner wall of cavity 10 all is provided with the inclined plane, the upper and lower.
The inclined plane that the upper and lower wall of cavity 10 set up in this embodiment and the inclined plane gradient that the upper and lower end of movable iron core 5 set up are 30 ~ 45 degrees.
This embodiment is a circuit breaker permanent magnetism electric operating mechanism, moves the upper end of iron core 5 and the 10 inner wall contact surfaces of cavity of quiet iron core 1 and is 30 ~ 45 degrees inclined planes, and this kind of structure is keeping moving under the unchangeable prerequisite of magnetic field vertical distance between iron core 5 and the quiet iron core 1, has increased the space of motion to the effective drive stroke who moves iron core 5 has been increaseed.
In order to reduce the impact force at the end of opening, the permanent magnet electric operating mechanism adopts a method of combining an inclined structure and a horizontal structure at the opening position end, and by adopting the structure, the magnetic flux entering the end face of the magnetic pole is dispersed during opening, and the magnetic pressure drop of each part is redistributed. The structure enables the force and displacement change of the tail section of the opening brake to be smooth by changing the change rate of the magnetic resistance/distance, so that the aim of reducing the impact force of the opening brake is fulfilled.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations can be made by those skilled in the art without inventive work on the basis of the technical solution of the present invention.
Claims (2)
1. A permanent magnet electric operating mechanism of a circuit breaker is characterized by comprising a static iron core, a movable iron core, a switching-off coil, a switching-on coil and a permanent magnet, a cavity is arranged in the static iron core, the movable iron core is arranged in the cavity, the permanent magnet is arranged on the side wall of the cavity, the opening coil is arranged on the side wall of the cavity and positioned at the upper end of the permanent magnet, the closing coil is also arranged on the side wall of the cavity and positioned at the lower end of the permanent magnet, the upper end of the movable iron core is provided with an upper movable shaft, the lower end of the movable iron core is provided with a lower movable shaft, the upper movable shaft is sleeved with an upper copper sleeve, the upper copper sleeve is fixed at the upper end of the static iron core, the lower moving shaft is sleeved with a lower copper sleeve which is fixedly arranged at the lower end of the static iron core, the inner walls of the upper end and the lower end of the cavity are provided with inclined planes, and the upper end and the lower end of the movable iron core are also provided with corresponding inclined planes.
2. The permanent magnet electric operating mechanism of the circuit breaker according to claim 1, characterized in that the inclined planes arranged on the upper and lower walls of the cavity and the inclined planes arranged on the upper and lower ends of the movable iron core are both 30-45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362054.7U CN210182290U (en) | 2019-08-21 | 2019-08-21 | Circuit breaker permanent magnetism electric operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921362054.7U CN210182290U (en) | 2019-08-21 | 2019-08-21 | Circuit breaker permanent magnetism electric operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210182290U true CN210182290U (en) | 2020-03-24 |
Family
ID=69842537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921362054.7U Active CN210182290U (en) | 2019-08-21 | 2019-08-21 | Circuit breaker permanent magnetism electric operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210182290U (en) |
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2019
- 2019-08-21 CN CN201921362054.7U patent/CN210182290U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 415000 No. 18 Dongting Avenue, West Dongting Biotechnology Park, Changde National High tech Industrial Development Zone, Changde City, Hunan Province Patentee after: Changde Tianming Electric Co.,Ltd. Address before: 415137 No.18 Dongting Avenue, West Dongting Biotechnology Park, Changde National High tech Industrial Development Zone, Changde City, Hunan Province Patentee before: Changde Tianming switch manufacturing Co.,Ltd. |