KR102016439B1 - Circuit breaker - Google Patents
Circuit breaker Download PDFInfo
- Publication number
- KR102016439B1 KR102016439B1 KR1020150074783A KR20150074783A KR102016439B1 KR 102016439 B1 KR102016439 B1 KR 102016439B1 KR 1020150074783 A KR1020150074783 A KR 1020150074783A KR 20150074783 A KR20150074783 A KR 20150074783A KR 102016439 B1 KR102016439 B1 KR 102016439B1
- Authority
- KR
- South Korea
- Prior art keywords
- circuit breaker
- latch
- cradle
- locking
- main body
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/46—Interlocking mechanisms
- H01H33/48—Interlocking mechanisms for interlocking between casing or cover and mechanism for operating contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/22—Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The circuit breaker according to the present invention can be expected to have an effect that the main body is stably fixed to the cradle by connecting the main body introduced into the cradle in a hook fastening manner, and the main body can be easily separated from the cradle.
Description
The present invention relates to a circuit breaker in which a circuit breaker body introduced into a cradle is hooked to the cradle.
A circuit breaker is an electric switch that turns off the arc by using compressed air. When a large current flows in the line, the circuit breaker disconnects the line and prevents the current from flowing. The circuit breaker separates the fixed contactor from the movable contactor to disconnect the line connection, and blows off the arc generated when the line connection is disconnected by compressed air. When a large current flows in the line, heat is generated due to this, and the circuit breaker can determine whether there is an overcurrent by measuring the temperature caused by the generated heat.
The circuit breaker generally has a structure in which the cradle and the main body are coupled to each other, and the main body has a structure in which the main body slides into the cradle and is pulled in. In the conventional circuit breaker, the coupling between the cradle and the main body is unstable, and thus the main body is separated from the cradle, causing injury to an operator or failure of the circuit breaker.
The present invention has been made to solve the above problems, the main body is easily fastened to the cradle but can be stably fixed, to provide a circuit breaker that the main body can be easily separated from the cradle There is a purpose.
Circuit breaker according to an embodiment of the present invention for achieving the above object is a cradle including a body guide portion and the latch; And a locking member, the breaker body being connected to the cradle by the hook member connected to the clasp by entering the cradle along the body guide part and connected to the cradle.
In addition, the circuit breaker main body, the rotating shaft; and the locking member, the frame; A rotating part formed on the frame so as to be connected to the rotating shaft and rotate; And a hook portion connected to the frame and connected to the hook in a hook fastening manner.
In addition, the locking member may include an elastic providing unit for providing an elastic force to the locking unit by connecting the locking unit and the breaker main body so that the locking unit is connected to the locking unit in a hook fastening manner.
In addition, the breaker body, a rotation limiting portion for limiting the rotation of the locking member; includes, the locking member is connected to the rotation limiting portion, the rotation limiting projection connected to the frame so that rotation is limited; It may include.
In addition, the latch may be provided in a shape in which an orthogonal cross section in a direction toward the locking portion facing toward the locking portion becomes smaller when connected in a hook fastening manner.
In addition, in the process of the breaker body is drawn along the body guide portion, a line that virtually connects the movement of one point of the breaker body is called LOM, and the shortest distance between the latch and the LOM is called C, The shortest distance between the locking portion and the LOM is referred to as D, the distance between the rotational center and the LOM is referred to as H, the longest distance between the locking portion and the LOM is referred to as E, and the rotational center of the rotation is as follows. When the shortest distance between the locking portion and L is L, the circuit breaker according to the embodiment of the present invention may rotate when the blocking body is pushed into the cradle so that the locking portion is pushed to the latch.
Equation 1 E> C
In addition, the circuit breaker according to an embodiment of the present invention may satisfy the following Equation 2 so that the engaging portion can be connected to the latch in a hook coupling manner.
Equation 2 H <L + C
Circuit breaker according to an embodiment of the present invention, through the above configuration, the main body is easily fastened to the cradle can be fixed stably, the main body has an effect that can be easily separated from the cradle.
1 is a perspective view of a circuit breaker according to an embodiment of the present invention.
2 is a perspective view of a cradle according to an embodiment of the present invention.
Figure 3a is an exploded perspective view showing the side of the breaker body according to an embodiment of the present invention.
Figure 3b is a view showing the appearance of the breaker main body side in the cradle according to an embodiment of the present invention.
Figure 3c is a front view showing the side of the breaker body according to an embodiment of the present invention.
Figures 4a, b, c is a view showing in sequence the state in which the breaker body is connected to the cradle according to an embodiment of the present invention.
Figures 5a, b, c is a view showing in sequence the state in which the breaker body is separated from the cradle according to an embodiment of the present invention.
6 is a perspective view of a locking member according to an embodiment of the present invention.
7 is a front view of the locking member according to an embodiment of the present invention.
Hereinafter, with reference to the accompanying drawings will be described a specific embodiment of the present invention. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below. In addition, the embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Shape and size of the elements in the drawings may be exaggerated for more clear description.
1 is a perspective view of a circuit breaker according to an embodiment of the present invention, Figure 2 is a perspective view of a cradle according to an embodiment of the present invention. Figure 3a is an exploded perspective view showing a circuit breaker main body side according to an embodiment of the present invention, Figure 3b is a view showing the appearance of the breaker main body side in accordance with an embodiment of the present invention from within the cradle, Figure 3c Front view showing a circuit breaker main body side according to an embodiment of the present invention. Figures 4a, b, c is a view showing in sequence the state in which the breaker body is connected to the cradle according to an embodiment of the present invention. Figures 5a, b, c is a view showing in sequence the state in which the breaker body is separated from the cradle according to an embodiment of the present invention. 6 is a perspective view of a locking member according to an embodiment of the present invention, Figure 7 is a front view of the locking member according to an embodiment of the present invention.
An embodiment of the present invention related to FIG. 1 will be described. The
An embodiment of the present invention related to FIG. 2 will be described.
An embodiment of the present invention related to Figs. 3A, B, and C will be described.
When the breaker
The elastic force provided to the
An embodiment of the present invention related to Figs. 4A, B, and C will be described. 4a, b, and c are diagrams sequentially illustrating how the
As shown in FIG. 4B, when the
As such, when the latching
An embodiment of the present invention related to Figs. 5A, B, and C will be described. 5a, b, and c are diagrams sequentially showing how the
An embodiment of the present invention related to FIGS. 6 and 7 will be described. As shown in FIG. 6, in a Cartesian coordinate system composed of x, y, and z axes that are orthogonal to each other in a three-dimensional space, the plane in which the locking
When the
While the locking
When the breaker
When the locking
As described above, although the present invention has been described by way of limited embodiments and drawings, the present invention is not limited thereto and is intended by those skilled in the art to which the present invention pertains. Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.
1: circuit breaker 10: cradle
11: body guide part 12: latch
20: breaker main body 21: rotating shaft
22: rotation limit 200: locking member
210: frame 211: rotating part
220: locking portion 230: elastic providing unit
240: rotation limit projection
LOM: A line that virtually connects the movement of a point on the breaker body.
C: Shortest distance between the brace and the LOM
D: Shortest distance between the catch and the LOM
E: longest distance between the latch and the LOM
H: Distance between the rotation center of the rotating part and the LOM
L: shortest distance between the rotation center of the rotating part and the locking part
Claims (7)
Includes a locking member, the circuit breaker body is connected to the cradle by the hook member is connected to the latch by the hook member is introduced into the cradle along the body guide portion,
The circuit breaker main body includes a rotation shaft;
The locking member, the frame; A rotating part formed on the frame so as to be connected to the rotating shaft and rotate; And a hook portion connected to the frame and connected to the hook in a hook fastening manner.
When the latch is connected in a hook fastening manner, a circuit breaker having a shape in which an orthogonal cross section in a direction facing the locking portion becomes smaller toward the locking portion.
The locking member, the circuit breaker comprising; an elastic providing portion for providing an elastic force to the locking portion by connecting the locking portion and the breaker body, so that the locking portion is connected to the latch in a hook fastening manner.
The breaker main body includes a rotation limiting unit for limiting rotation of the locking member.
The locking member, the circuit breaker including; a rotation limiting projection connected to the frame so that rotation is limited to the rotation limiting portion.
In the process of drawing the circuit breaker main body along the body guide part, a line that virtually connects the movement of one point of the circuit breaker main body is called LOM,
The shortest distance between the latch and the LOM is called C,
The distance between the rotational center of the rotating unit and the LOM is called H,
The longest distance between the locking portion and the LOM is called E,
When L is the shortest distance between the rotation center of the rotating part and the locking part,
And a circuit breaker that satisfies Equation 1 below so that when the breaker main body enters the cradle, the catch part can rotate while being pushed by the catch.
Equation 1 E> C
Circuit breaker that satisfies the following equation 2 so that the engaging portion can be connected to the latch in a hook coupling manner.
Equation 2 H <L + C
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150074783A KR102016439B1 (en) | 2015-05-28 | 2015-05-28 | Circuit breaker |
CN201610231900.6A CN106058703B (en) | 2015-04-14 | 2016-04-14 | Breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150074783A KR102016439B1 (en) | 2015-05-28 | 2015-05-28 | Circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20160141116A KR20160141116A (en) | 2016-12-08 |
KR102016439B1 true KR102016439B1 (en) | 2019-09-03 |
Family
ID=57576893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150074783A KR102016439B1 (en) | 2015-04-14 | 2015-05-28 | Circuit breaker |
Country Status (1)
Country | Link |
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KR (1) | KR102016439B1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100876410B1 (en) * | 2007-07-12 | 2008-12-31 | 엘에스산전 주식회사 | Draw in and out type circuit breaker |
CN104466766A (en) * | 2014-12-25 | 2015-03-25 | 常熟开关制造有限公司(原常熟开关厂) | Drawing-out type circuit breaker |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100323743B1 (en) * | 1999-12-01 | 2002-02-19 | 이종수 | device for auto-tuip and closing in MCCB |
KR20140036624A (en) | 2012-09-17 | 2014-03-26 | 엘지전자 주식회사 | Mobile terminal |
KR101555553B1 (en) * | 2013-11-18 | 2015-09-24 | 엘에스산전 주식회사 | Safety Device for Drawable Air Circuit Breaker |
-
2015
- 2015-05-28 KR KR1020150074783A patent/KR102016439B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100876410B1 (en) * | 2007-07-12 | 2008-12-31 | 엘에스산전 주식회사 | Draw in and out type circuit breaker |
CN104466766A (en) * | 2014-12-25 | 2015-03-25 | 常熟开关制造有限公司(原常熟开关厂) | Drawing-out type circuit breaker |
Also Published As
Publication number | Publication date |
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KR20160141116A (en) | 2016-12-08 |
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