KR101829317B1 - Trip apparatus of mold case circuit breaker - Google Patents
Trip apparatus of mold case circuit breaker Download PDFInfo
- Publication number
- KR101829317B1 KR101829317B1 KR1020150151593A KR20150151593A KR101829317B1 KR 101829317 B1 KR101829317 B1 KR 101829317B1 KR 1020150151593 A KR1020150151593 A KR 1020150151593A KR 20150151593 A KR20150151593 A KR 20150151593A KR 101829317 B1 KR101829317 B1 KR 101829317B1
- Authority
- KR
- South Korea
- Prior art keywords
- instantaneous
- rotation moment
- spring
- control lever
- armature
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/2463—Electromagnetic mechanisms with plunger type armatures
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/528—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a toggle or collapsible link between handle and contact arm, e.g. sear pin mechanism
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/36—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release
- H01H73/38—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electromagnetic release and no other automatic release reset by lever
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The present invention relates to an armature for rotating an armature, a rotation moment control lever provided to be rotatable in opposition to the armature for adjusting a rotation moment of the armature, The instantaneous spring is supported on the rotation moment adjusting lever. The instantaneous spring is moved in a direction in which the instantaneous spring is tensioned and compressed. A trip device for a wiring breaker including a movable support portion as far as possible is provided.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trip device for a circuit breaker, and more particularly, to a trip device for a circuit breaker capable of adjusting the tension of an instantaneous spring.
Generally, a circuit breaker is an electric device that automatically protects a circuit by shutting off the circuit when an abnormal current (for example, an overcurrent or a short circuit) occurs in the converter. The circuit breaker for wiring is composed of a terminal part connecting the power source side and the load side, a main circuit composed of a fixed contact part and a movable contact part in the circuit breaker for wiring, an opening and closing device part for connecting and shorting the main circuit, Trip device.
Here, the trip device recognizes an abnormal current in the circuit breaker and automatically short-circuits the circuit, irrespective of artificial opening and closing when an abnormal current is generated. The trip is a function that detects the amount of current when the instantaneous current flows, that is, when the current is applied at a certain magnification of the rated current of the circuit breaker, and blocks the main circuit at a certain magnification and for a suitable time.
On the other hand, FIG. 1 shows a trip device of a conventional circuit breaker.
1, a trip portion of a conventional circuit breaker includes a
Here, the
At this time, the
The rotation
For this, an
The rotation
The
A trip portion of a conventional circuit breaker having such a structure is disclosed in Japanese Patent Application No. 10-1276370.
On the other hand, there are various rated currents for each size of the circuit breaker. Therefore, the range of the tensile force of the
However, in the trip device of the conventional circuit breaker, the adjustment range of the
Therefore, the conventional circuit breaker for a wiring breaker has to individually design parts for instantaneous trip according to each rated current even within the same size. Therefore, as the design of the trip device for each rated current varies, the number of parts increases, There is a problem of rising.
SUMMARY OF THE INVENTION It is an object of the present invention to at least partially solve the problems of the prior art as described above, and to provide a trip device for a wiring breaker in which the tension range of the instantaneous spring is increased.
According to one aspect of the present invention, there is provided a magnetic bearing device comprising a fixed magnet, an armature pivoted by an electromagnetic force of the fixed magnet, and an armature rotatably opposed to the armature to adjust a rotation moment of the armature And an instantaneous spring connected between the armature and the rotation moment adjusting lever, wherein the instantaneous spring is provided to the rotation moment control lever And a movable support portion that supports the instantaneous spring and is movable in a direction in which the instantaneous spring is tensioned and compressed.
In one embodiment, the movable support can maintain the moved position against the resilient restoring force of the instantaneous spring.
Further, in one embodiment, the instantaneous spring may be composed of a tension coil spring having one end coupled to the armature and the other end coupled to the movable support.
Further, in one embodiment, the movable support portion includes an adjusting screw provided on the rotation moment adjusting lever; And a movable holder coupled to the instantaneous spring and screwed to the adjustment screw and reciprocally movable according to rotation of the adjustment screw.
Also, in one embodiment, a tool engagement groove may be formed at one end of the adjustment screw so that a tool for rotating the adjustment screw can be fastened.
According to an embodiment of the present invention having such a configuration, the adjustment range of the instantaneous spring is expanded, thereby increasing the adjustment range of the instantaneous trip and increasing the design range of the instantaneous spring in the same structure.
Further, according to the embodiment of the present invention, since the parts having the same specifications can be commonly used for the circuit breaker of various sizes, the manufacturing cost of the device can be reduced.
1 is a side view of a trip device of a conventional circuit breaker.
2 is a side view showing a state in which the movable support portion of the trip device of the circuit breaker according to the embodiment of the present invention is elevated.
3 is a side view showing a state in which the movable support portion of the trip device of the wiring breaker shown in Fig. 2 is lowered.
Fig. 4 is a view of the trip device of the circuit breaker shown in Fig. 2 as viewed from the side of the rotation moment adjusting lever.
5 is a perspective view of the circuit breaker shown in Fig.
6 is a top view of the circuit breaker shown in Fig.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Furthermore, the singular forms "a", "an," and "the" include plural referents unless the context clearly dictates otherwise.
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
Referring to Figs. 2 to 6, a
2 to 6, a
The main
The
The
The
The
The rotation
In one embodiment, the rotation
The rotation
The
The
The
To this end, in one embodiment, the
Although not shown, a plurality of
This
Since the
The
This
In one embodiment, the
For this purpose, the
Thus, in one embodiment, the
The adjusting
In one embodiment, a
For example, the
The
The
In the
In addition, since the adjustment range of the tension spring of the
While the present invention has been particularly shown and described with reference to particular embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention as defined by the following claims I would like to make it clear.
100: Trip device of wiring breaker
110: Main circuit contact point
120: Fixed magnet
130: Amateur
140: Trip shaft
150: Rotation moment control lever
160: Instant Bar
170: instantaneous adjustment knob
180: instantaneous spring
190:
192: Adjusting screw
193: Tool fastening groove
194: Operation holder
Claims (5)
An instantaneous bar hooked on an upper end of the rotation moment control lever to limit a rotation range of the rotation moment control lever;
An instantaneous adjustment knob contacting the top of the instant bar and adjusting the rotational angle of the instant bar; And
And a movable support provided on the rotation moment control lever to support the instantaneous spring on the rotation moment control lever and movable in a direction in which the instantaneous spring is tensioned and compressed,
Wherein the instantaneous spring is composed of a tension coil spring having one end coupled to the armature and the other end coupled to the movable support,
Wherein the movable support portion includes a control screw coupled to the rotation moment control lever so as to extend in a tensioning direction of the instantaneous spring, and an instantaneous spring coupled to the control screw to be screwed to the control screw, And a movable holder reciprocable in a tensioning and compressing direction,
Wherein the adjustment range of the instantaneous spring is primarily adjusted through the instantaneous adjustment knob and the instantaneous spring, and the adjustment range of the instantaneous spring is secondarily adjusted through the adjustment screw and the movable holder. Of the trip device.
Wherein the movable support portion holds the moved position against the elastic restoring force of the instantaneous spring.
And a tool fastening groove is formed at one end of the adjusting screw so that a tool for rotating the adjusting screw can be fastened.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150151593A KR101829317B1 (en) | 2015-10-30 | 2015-10-30 | Trip apparatus of mold case circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150151593A KR101829317B1 (en) | 2015-10-30 | 2015-10-30 | Trip apparatus of mold case circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170051657A KR20170051657A (en) | 2017-05-12 |
KR101829317B1 true KR101829317B1 (en) | 2018-02-20 |
Family
ID=58740160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150151593A KR101829317B1 (en) | 2015-10-30 | 2015-10-30 | Trip apparatus of mold case circuit breaker |
Country Status (1)
Country | Link |
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KR (1) | KR101829317B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112382547B (en) * | 2020-11-05 | 2023-10-17 | 美高电气科技有限公司 | Thermomagnetic adjustable release |
CN113707506B (en) * | 2021-08-16 | 2024-08-09 | 武汉船用电力推进装置研究所(中国船舶重工集团公司第七一二研究所) | Setting adjustment indicating mechanism for electromagnetic release |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200393291Y1 (en) * | 2005-05-14 | 2005-08-22 | 엘에스산전 주식회사 | A trip mechanism for molded cased circuit breaker |
KR101276370B1 (en) * | 2012-01-17 | 2013-06-18 | 현대중공업 주식회사 | Circuit breaker |
-
2015
- 2015-10-30 KR KR1020150151593A patent/KR101829317B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200393291Y1 (en) * | 2005-05-14 | 2005-08-22 | 엘에스산전 주식회사 | A trip mechanism for molded cased circuit breaker |
KR101276370B1 (en) * | 2012-01-17 | 2013-06-18 | 현대중공업 주식회사 | Circuit breaker |
Also Published As
Publication number | Publication date |
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KR20170051657A (en) | 2017-05-12 |
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