CN218299734U - Short circuit trip coil of miniature circuit breaker - Google Patents
Short circuit trip coil of miniature circuit breaker Download PDFInfo
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- CN218299734U CN218299734U CN202222649310.9U CN202222649310U CN218299734U CN 218299734 U CN218299734 U CN 218299734U CN 202222649310 U CN202222649310 U CN 202222649310U CN 218299734 U CN218299734 U CN 218299734U
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- coil
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- iron core
- skeleton
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Abstract
The utility model relates to a miniature circuit breaker's short circuit trip coil, including the coil skeleton, the cover is established at the upper coil in the coil skeleton outside, install the conducting rod at upper coil both ends, including the bottom coil on the coil skeleton, move armature, quiet iron core, a spring, the outward appearance of coil skeleton is protruding to be equipped with first flange, the second flange, be provided with the recess between first flange and the second flange, bottom coil cover is located on the recess, the inside of coil skeleton is formed with logical groove, it moves armature to be provided with in the logical groove, it from left to right sets gradually to move the iron core to move armature, the ejector pin, the third flange, it is logical to move iron core swing joint, the cover is equipped with the spring on the ejector pin in proper order, quiet iron core, the outward appearance of quiet iron core is protruding to be equipped with the fourth flange, be provided with spacing recess between fourth flange and the third flange, the one end of spring is contradicted on moving the iron core, the other end is contradicted on the fourth flange. The utility model has the advantages of high response speed and high safety.
Description
Technical Field
The utility model relates to an electrical component technical field especially relates to a miniature circuit breaker's short circuit trip coil.
Background
Circuit breakers are important components of electrical distribution equipment and are used primarily in industrial low voltage power systems. When the existing miniature circuit breaker breaks overload current or short-circuit current, the main circuit is quickly cut off mainly by the fact that a short-circuit tripping coil generates a strong magnetic field under large current to push an armature to quickly impact a tripping mechanism.
However, when the existing miniature circuit breaker is broken, the problem that the magnetic induction intensity of a static iron core is low and the attraction between the static iron core and a movable armature is weak often occurs, so that the existing miniature circuit breaker has the defect of low response speed, and the problem that the damping effect on short-circuit current is not obvious due to the low coil inductance intensity, so that the existing miniature circuit breaker also has the defect of poor safety.
Disclosure of Invention
In view of this, an object of the present invention is to provide a short circuit trip coil of a miniature circuit breaker with high response speed and high safety.
In order to realize above purpose, the utility model discloses a such miniature circuit breaker's short circuit trip coil, establish upper coil, the conducting rod of installing at upper coil both ends in the coil skeleton outside including coil skeleton, cover, including bottom coil, movable armature, quiet iron core, spring on the coil skeleton, coil skeleton's outward appearance is protruding to be equipped with first flange, second flange, be provided with the recess between first flange and the second flange, bottom coil cover is located on the recess, coil skeleton's inside is formed with logical groove, it moves armature to be provided with in the logical groove, it from left to right sets gradually to move iron core, ejector pin, third flange to move iron core swing joint and to be in logical inslot, the cover is equipped with spring, quiet iron core in proper order on the ejector pin, quiet iron core's outward appearance is protruding to be equipped with the fourth flange, be provided with spacing recess between fourth flange and the third flange, the one end of spring is on moving the iron core, and the other end is contradicted on the fourth flange.
The beneficial effects are as follows: constitute coil assembly through adopting bottom coil and upper coil, the magnetic induction strength of quiet iron core has effectively been increased, thereby increase quiet iron core and move the attraction between the armature, realize the fast advantage of response speed, and the coil assembly who constitutes compares current individual layer coil, coil inductance strength has been increased, the damping to short-circuit current has been increased, make short-circuit current lag behind the arc voltage phase place, the event has still realized the advantage of security height, its this coil assembly is under the normal operating current condition, still owing to increased electrically conductive sectional area, the event has still reduced line resistance's temperature rise.
The utility model discloses further set up still including the insulating layer on the coil skeleton, the insulating layer sets up between bottom coil and upper coil.
The technical scheme is used for preventing the metal conductors from touching each other.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a coil bobbin according to an embodiment of the present invention.
Fig. 3 is an exploded view of a bobbin according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-3, the specific embodiment of the utility model is a short circuit trip coil of miniature circuit breaker, including coil skeleton 1, the cover is established at the upper coil 2 in the coil skeleton 1 outside, install the conducting rod 3 at upper coil 2 both ends, including bottom coil 7 on the coil skeleton 1, move armature 9, quiet iron core 10, spring 13, coil skeleton 1's outward appearance is protruding to be equipped with first flange 4, second flange 5, be provided with recess 6 between first flange 4 and the second flange 5, bottom coil 7 cover is located on recess 6, coil skeleton 1's inside is formed with logical groove 8, it moves armature 9 to be provided with in logical groove 8, it sets gradually to move armature 9 from left to right sets up to moving iron core 91, ejector pin 92, third flange 93, move iron core 91 swing joint in logical groove 8, the cover is equipped with spring 13 on the ejector pin 92 in proper order, quiet iron core 10's outward appearance is protruding to be equipped with fourth flange 11, fourth flange 11 and third flange conflict and are provided with spacing recess 12 between conflict 93, the one end of spring 13 is on moving iron core 91, the other end is on fourth flange 11.
As shown in fig. 2, the bobbin 1 further includes an insulating layer 14, and the insulating layer 14 is disposed between the bottom coil 7 and the upper coil 2.
Naturally, in addition to the embodiments described above, there are many other embodiments of the present invention, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the content of the essential technical solutions of the present invention, and these changes and modifications and the technical solutions in the present patent are equivalent, and then these corresponding changes and modifications should fall within the scope of the appended claims of the present invention, and the present invention is created to meet the actual research and development abilities and resource conditions of the applicant and the inventor.
Claims (2)
1. A short circuit trip coil of a miniature circuit breaker, characterized in that: including coil skeleton, cover establish the upper coil in the coil skeleton outside, install the conducting rod at upper coil both ends, including bottom coil, moving armature, quiet iron core, spring on the coil skeleton, the outward appearance of coil skeleton is protruding to be equipped with first flange, second flange, be provided with the recess between first flange and the second flange, bottom coil cover is located on the recess, the inside of coil skeleton is formed with logical groove, it moves armature to be provided with in the logical groove, it from left to right sets gradually to move iron core, ejector pin, third flange to move armature, it is at logical inslot to move iron core swing joint, the cover is equipped with spring, quiet iron core on the ejector pin in proper order, the outward appearance of quiet iron core is protruding to be equipped with the fourth flange, be provided with spacing recess between fourth flange and the third flange, the one end of spring is contradicted on moving the iron core, and the other end is contradicted on the fourth flange.
2. The short circuit trip coil of a miniature circuit breaker of claim 1 further comprising: the coil framework is further provided with an insulating layer, and the insulating layer is arranged between the bottom coil and the upper coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222649310.9U CN218299734U (en) | 2022-09-29 | 2022-09-29 | Short circuit trip coil of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222649310.9U CN218299734U (en) | 2022-09-29 | 2022-09-29 | Short circuit trip coil of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218299734U true CN218299734U (en) | 2023-01-13 |
Family
ID=84808508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222649310.9U Active CN218299734U (en) | 2022-09-29 | 2022-09-29 | Short circuit trip coil of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218299734U (en) |
-
2022
- 2022-09-29 CN CN202222649310.9U patent/CN218299734U/en active Active
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