KR101692787B1 - Air circuit breaker - Google Patents

Air circuit breaker Download PDF

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Publication number
KR101692787B1
KR101692787B1 KR1020150066292A KR20150066292A KR101692787B1 KR 101692787 B1 KR101692787 B1 KR 101692787B1 KR 1020150066292 A KR1020150066292 A KR 1020150066292A KR 20150066292 A KR20150066292 A KR 20150066292A KR 101692787 B1 KR101692787 B1 KR 101692787B1
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KR
South Korea
Prior art keywords
link
latch
link member
cam
input
Prior art date
Application number
KR1020150066292A
Other languages
Korean (ko)
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KR20160133620A (en
Inventor
유재구
Original Assignee
현대중공업 주식회사
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Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020150066292A priority Critical patent/KR101692787B1/en
Priority to CN201610305809.4A priority patent/CN106158532B/en
Publication of KR20160133620A publication Critical patent/KR20160133620A/en
Application granted granted Critical
Publication of KR101692787B1 publication Critical patent/KR101692787B1/en

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    • 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
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3005—Charging means
    • 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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3089—Devices for manual releasing of locked charged spring motor; Devices for remote releasing

Abstract

A charging unit provided at a lower end of the side wall member, a charging unit connected to the charging spring unit for compressing and extending the charging spring, and a charging link unit connected to the charging spring unit for performing charging and discharging operations of the mover A breaker is disclosed.

Figure R1020150066292

Description

Breaker {AIR CIRCUIT BREAKER}

The present invention relates to a circuit breaker.

Generally, a breaker is an industrial power device that automatically disconnects a line when a fault current such as an overcurrent or a short-circuit current occurs in a transmission line having a relatively low voltage.

The breaker largely performs a closing operation for closing the energizing circuit and a closing operation for opening the energizing circuit. The closing and closing operation of the circuit breaker is generally performed automatically or according to the user's selection according to the state of the energizing circuit.

However, various kinds of external forces such as an electric repulsive force are applied during the closing and shutting operation of the circuit breaker, so that the input and shutoff operations can not be smoothly implemented. Furthermore, there is a problem that the lifetime is shortened by various types of external forces.

Korean Patent Registration No. 1191571

A closing and breaking operation can be smoothly implemented, and a breaker with improved durability is provided.

The circuit breaker according to an embodiment of the present invention includes a charging spring unit installed at a lower end of a side wall member, a charging unit connected to the charging spring unit to compress and extend the charging spring, and a charging unit connected to the charging spring unit, And a closing link unit for performing a blocking operation.

The charging spring unit may include a supporting member for supporting one end of the charging spring, a spring guide for supporting the other end of the charging spring, and the charging spring.

The charging unit includes a folding link member connected to the charging spring unit, an input link having one end connected to the connecting shaft for connecting the folding link member and moving up and down with the connecting shaft, A latch which is rotated around a latch axis and a closing pin which is connected to the latch and rotated according to the rotation of the latch so as to control the rotation of the latch.

The insertion latch is installed on the insertion latch shaft, and a spring is provided on the insertion latch shaft so that the insertion latch shaft can be rotated when the insertion latch is released from restraint by the latch.

Wherein the folding link member includes a first folding link member rotatably installed on an installation shaft having one end connected to the connection shaft and the other end fixed to the side wall member and a second folding link member having one end connected to the connection shaft, And a second folding link member connected to the second folding link member.

The input link unit includes an input link member connected to the charging spring unit and rotatably installed on a rotation shaft of the input link member, a closing link cam rotatably installed on the rotation shaft of the input link member, A second link member connected to the first link member via the link member connection shaft and folded to the first link member; a link member for connecting the shut off latch provided on the link member connection shaft; A blocking pin which is connected to the cam member and rotates in accordance with rotation of the cam member, a blocking pin formed with an insertion groove to control rotation of the blocking latch, A rotating member connected to the second link member to drive the second link member by rotation, And it may be provided with a connection link member having one end is connected to the rotary member is connected to the other end of the mover.

The input link member may be provided with a guide bar, and the input link cam may be provided with a guide hole through which the guide bar is moved.

The cam member rotating shaft on which the cam member is mounted may be provided with a cam member spring for providing a restoring force to the cam member.

And a point where a force applied to the input link cam and the first link member is switched when the input link cam is rotated.

The input link unit may further include a guide member for guiding a rotation path of the input link cam, the first link member, the linkage link member for disconnecting the latch, and the cam member.

It is possible to smoothly perform the input and shut-off operations, and the durability is improved.

1 is a schematic perspective view showing the inside of a circuit breaker according to an embodiment of the present invention.
2 is a configuration diagram showing a mover power transmission portion of a circuit breaker according to an embodiment of the present invention.
3 and 4 are explanatory diagrams for explaining the operation of the circuit breaker according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

FIG. 1 is a schematic perspective view showing the inside of a circuit breaker according to an embodiment of the present invention, and FIG. 2 is a view showing a structure of a mover breaker of a circuit breaker according to an embodiment of the present invention.

1 and 2, a circuit breaker 100 according to an embodiment of the present invention may include a charging spring unit 120, a charging unit 200, and an input link unit 300.

The charging spring unit 120, the charging unit 200 and the input link unit 300 are included in the mover driving unit 110. The mover driving unit 110 includes the mover 130, And to transmit the driving force for the blocking operation to the mover 130.

The mover driving unit 110 may include a sidewall member 140 for installing the charging spring unit 120, the charging unit 200, and the input link unit 300.

The charging spring unit 120 is installed at the lower end of the side wall member 140. The charging spring unit 120 includes a support member 124 fixed to the sidewall member 140 and supporting one end of the charging spring 122 and a supporting member 124 supporting the other end of the charging spring 122, 122 for compressing or stretching the elastic member.

Meanwhile, the spring guide 126 is connected to the charging unit 200 and the input link unit 300 described above. That is, the spring guide 126 is moved by the charging unit 200 to compress the charging spring 122, and when the charging spring 122 is expanded in the compressed state, And transmits driving force.

The charging unit 200 is connected to the charging spring unit 120 to compress and extend the charging spring 122.

The charging unit 200 includes a folding link member 210, an input link 220, a latch 230, an input latch 240, and a closing pin 250.

The folding link member 210 includes a first folding link member 214 rotatably installed on an installation shaft 142 having one end connected to the connection shaft 212 and the other end fixed to the side wall member 140, And a second folding link member 216 connected to the connection shaft 212 and the other end connected to the charging spring unit 120.

Meanwhile, the folding link member 210 may be folded by the power transmission cam 150 that is rotatably installed on the side wall member 140. In detail, when the external force is transmitted from the outside, the power transmitting cam 150 is rotated. The power transmission cam 150 to be rotated moves the connecting shaft 212 connecting the first and second folding link members 214 and 216 of the folding link member 210.

That is, as the first and second folding link members 214 and 216 are unfolded by the rotation of the power transmission cam 150, the charging spring 122 of the charging spring unit 120 is compressed.

The input link 220 is assembled to the connection shaft 212 connecting the first and second folding link members 214 and 216 for compressing the charging spring 122 and is raised and lowered in conjunction with the connection shaft 212. On the other hand, the input links 220 may be configured as a pair. One end of the closing link 220 is connected to the connecting shaft 212 and the other end is connected to the latch 230.

That is, the input link 220 moves up and down according to the movement of the connection shaft 212 and rotates the latch 230 by the power transmitted from the outside.

On the other hand, one end side of the input link 220 is inclined at a predetermined angle, and may have a bar shape as a whole.

The latch 230 is connected to the other end of the input link 220 and is rotated around the latch shaft 232. That is, the latch 230 is rotated clockwise and counterclockwise about the latch shaft 232 when the input link 220 is moved up and down.

On the other hand, the latch 230 has a circular arc portion 234 which is in contact with the input latch 240. That is, when the insertion latch 240 arranged to be in contact with the circular arc portion 234 during rotation of the latch 230 is released from being supported by the circular arc portion 234, the insertion latch 240 is rotated or the insertion latch 240 The insertion latch 240 is rotated when the insertion latch 240 is supported by the circular arc portion 234 by the rotation of the latch 230 in a state where the insertion latch 240 is spaced from the circular arc portion 234. [

The input latch 240 is connected to the latch 230 and rotated according to the rotation of the latch 230. The input latch 240 is installed on the input latch shaft 242 and the spring 244 is provided on the input latch shaft 242. When the input latch 240 is locked by the latch 230, (242) is rotated.

The input latch 240 may include a pair of connecting bars 246 contacting the latch 230. The connection bar 246 is connected to the pair of input latches 240 and is supported by the arc portion 234 of the latch 230 or spaced from the arc portion 234. The arc portion 234 is separated from the insertion latch 240 or presses the insertion latch 240 so that the insertion latch 240 is rotated about the insertion latch shaft 242.

An insertion groove (not shown) is formed in the insertion pin 250 to control the rotation of the insertion latch 240. More specifically, the insert pin 250 is rotatably mounted on the rotary sidewall member 140 and restricts or opens the rotation path of the insert latch 240 through the insert groove during rotation to rotate the insert latch 240 It is to adjust.
That is, when the end of the insertion latch 240 is inserted into the insertion groove of the insertion pin 250 and the upper surface of the insertion latch 240 is supported by the front surface of the insertion groove, 240 are restricted. When the insertion pin 250 is rotated and the support surface of the insertion groove is released from the upper surface of the insertion latch 240, the restriction of the insertion latch 240 by the insertion pin 250 is released and the insertion latch 240 Is rotated. Thus, the end of the insertion latch 240 is released from the insertion groove of the insertion pin 250.
Thus, the input latch 240 is rotated.

To this end, a spring (not shown) for the input pin is connected to the input pin 250 to restrict the rotation of the input latch 240 when the input latch 240 releases the restraint.

On the other hand, a pushing member 260 for starting the closing operation of the mover 130 may be installed on the input pin 250. The pushing member 260 is pressed by the input rod 170 connected to the push button 160 of the mover drive unit 110 to rotate the push pin 250.

The input link unit 300 is connected to the charging spring unit 120 to perform the closing and closing operations of the mover 130.

The input link unit 300 includes an input link member 310, an input link cam 320, a first link member 330, a second link member 340, a disconnecting latch link member 350, And includes a member 360, a blocking latch 370, a blocking pin 380, a rotating member 390, a rotating shaft portion 400, a connecting link member 410 and a guide member 420.

The input link member 310 is connected to the charging spring unit 120 and rotatably installed on the input link member rotary shaft 312. That is, one end of the input link member 310 is connected to the spring guide 126 of the charging spring unit 120 so that when the charging spring 122 is compressed and extended, the input link member rotation shaft 312 is rotated by the spring guide 126, As shown in Fig.

Meanwhile, the input link member 310 is provided with a guide bar 314. The guide bar 314 rotates the input link cam 320.

A guide member 420 is fixed to the side wall member 140 of the mover driving unit 110 and the guide bar 314 is inserted into the guide bar guide hole 422 of the guide member 420. That is, the guide bar 314 is moved along the guide bar guide hole 422. In other words, when the input link member 310 is rotated, the guide bar 314 is moved along the guide bar guide hole 422 to rotate the input link cam 320.

The input link cam 320 is rotatably installed on the input link member rotary shaft 312. The input link cam 320 is provided with a guide hole 322 into which the guide bar 314 of the input link member 310 is inserted. The guide hole 322 may be disposed at a position corresponding to the guide bar guide hole 422 of the guide member 420 or may be disposed so as to overlap the guide bar guide hole 422 at the time of rotation of the input link cam 320 .

The guide bar 314 is moved along the guide hole 322 when the input link member 310 rotates. In more detail, when the mover 130 is in a cut-off state, the input link member 310 is rotated when the charging spring 122 is compressed, so that the input link cam 320 is also rotated. That is, since the engagement of the input link member 310 with the guide bar 314 is released, the input link cam 320 is also rotated in the same direction as the input link member 310.

When the mover 130 is in the closing state, only the input link member 310 is rotated and the closing link cam 320 is not rotated when the charging spring 122 is compressed. At this time, the guide bar 314 of the input link member 310 is moved from one end of the guide hole 322 to the other end.

When the charging spring 122 is extended when the mover 130 is in the disconnected state, that is, when the mover 130 is turned on, the input link member 310 is rotated by the extension of the charging spring 122 . At this time, the guide bar 314 of the input link member 310 is disposed at one end of the guide hole 322 of the input link cam 320 to rotate the input link cam 320. Accordingly, the closing link cam 320 is rotationally driven in the same direction as the closing link member 310.

On the other hand, three input link cams 320 may be installed side by side on the input link member rotary shaft 312.

The first link member 330 is connected to the input link cam 320. That is, the first link member 330 is connected to the closing link cam 320 via the moving shaft 332. The moving shaft 332 is inserted into the moving shaft guide hole 424 of the guide member 420 and the moving shaft 332 can be moved along the moving shaft guide hole 424. That is, when the input link cam 320 rotates, the first link member 330 is rotated about the movement axis 332, and the movement axis 332 is moved along the movement axis guide hole 424.

The first link member 330 is driven to move the moving shaft 332 from one end of the moving shaft guide hole 424 to the other end when the charging spring 122 is compressed when the mover 130 is in the blocking state . At this time, the closing link cam 320 is rotated clockwise as the moving shaft 332 moves.

The first link member 330 is configured such that when the charging spring 122 is extended when the mover 130 is disconnected, that is, when the mover 130 is inserted, So that the movable shaft 332 is moved. At this time, the closing link cam 320 is rotated counterclockwise as the moving shaft 332 moves.

After the mover 130 is separated from the upper terminal 180 during the mating operation of the mover 130 in the state where the charging spring 122 is compressed, the first link member 330 moves the moving shaft guide hole 424 To move the moving shaft 332 from one end to the other end. At this time, the closing link cam 320 is also rotated clockwise as the moving shaft 332 moves.

One end of the second link member 340 is connected to the first link member 330 through the link member connecting shaft 342 and folded with the first link member 330. The other end of the second link member 340 is connected to the rotation member 390 and the second link member 340 is rotated by the rotation member 390 rotated in accordance with the rotation of the rotation axis unit 400, (330).

That is, the first and second link members 330 and 340 are unfolded when the mover 130 is in the closed state and are folded when the mover 130 is in the closed state.

The blocking link connecting link member 350 is provided on the link member connecting shaft 342. That is, one end of the blocking link connecting link member 350 is connected to the link member connecting shaft 342 and the other end is connected to the cam member 360.

The interlocking link connecting link member 350 is moved in conjunction with the link member connecting shaft 342 which is moved when the first and second link members 330 and 340 are folded. The cam member 360 is rotated about the cam member rotation axis 362 when the blocking link connecting link member 350 is moved.

That is, when the first and second link members 330 and 340 are unfolded, the cam member 360 is rotated clockwise by the blocking link connecting link member 350, and the first and second link members 330 and 340 are folded The cam member 360 is rotated in the counterclockwise direction by the interlock coupling link member 350. [

On the other hand, the other end side of the blocking link connecting link member 350 is bent, and the blocking link connecting link member 350 and the cam member 360 are interconnected via a cam member connecting shaft 352.

The cam member connecting shaft 352 is inserted into the cam member connecting shaft guide hole 426 of the guide member 420 and is moved along the cam member connecting shaft guide hole 426.

The cam member 360 is connected to the blocking link connecting link member 350 and rotated as described above. That is, the cam member 360 is connected to the interlocking link link member 350 via the cam member connecting shaft 352, and is rotated around the cam member rotating shaft 362.

The cam member rotation shaft 362 may be provided with a spring for a cam member (not shown) that provides a driving force for rotating the cam member 360 in the clockwise direction when the cam member 360 is released from the constraint.

That is, when the restraining force applied to the cam member 360 is removed, the cam member 360 can be rotated clockwise by the spring for the cam member.

Meanwhile, the cam member 360 serves to provide mutual binding force with the blocking latch 370.

The cam member 360 may be formed with a circular arc portion 364 for supporting the blocking latch 370. [

The blocking latch 370 is connected to the cam member 360 and rotated according to the rotation of the cam member 360. On the other hand, the blocking latch 380 is provided on the blocking latch rotation axis 372 and the blocking latch spring 374 is provided on the blocking latch rotation axis 372 to release the blocking latch 370 by the cam member 360 The hour block latch rotation shaft 372 is rotated.

The blocking latch 370 may be formed as a pair and may include a connecting bar 376 which is in contact with the cam member 360. The connecting bar 376 is connected to the pair of blocking latches 370 while being supported on the circular arc portion 364 of the cam member 360 or spaced from the circular arc portion 364.

The arc portion 364 is separated from the blocking latch 370 or presses the blocking latch 370 so that the blocking latch 370 is rotated about the blocking latch rotational axis 372. [

An insertion groove (not shown) is formed in the blocking pin 380 to control the rotation of the blocking latch 370. More specifically, the blocking pin 380 is rotatably installed, and upon rotation, the insertion groove restricts or opens the rotation path of the blocking latch 370 to regulate the rotation of the blocking latch 370.
That is, when the upper end of the blocking latch 370 is inserted into the insertion groove of the blocking pin 380 and the upper surface of the blocking latch 370 is supported by the ceiling of the insertion groove, 370 is limited. When the blocking pin 380 is rotated and rotated to release the ceiling surface support of the insertion groove with respect to the upper surface of the blocking latch 370, the blocking pin 370 is released from restraint by the blocking pin 380, (370) is rotated. As a result, the end portion of the blocking latch 370 is released from the insertion groove of the blocking pin 380.
Thereby, the blocking latch 370 is rotated.

To this end, a spring (not shown) for the blocking pin is connected to the blocking pin 380 to limit the rotation of the blocking latch 370 when the blocking latch 370 releases the locking.

The rotating member 390 is connected to the other end of the second link member 340 to drive the second link member 340 by rotation. On the other hand, the rotary member 390 is installed on the rotary shaft portion 400 and rotates in conjunction with the rotary shaft portion 400.

The connection member 410 is connected to the rotary member 390 to drive the mover 130 or the rotary member 390 can be rotated by the mover 130.

The rotary shaft portion 400 is disposed to protrude to the outside of the mover drive portion 110, and drives the plurality of mover's 130.

On the other hand, the rotary shaft portion 400 is provided with the rotary member 390 as described above. The mover 130 can be separated from the upper terminal 180 or contact the upper terminal 180 by the rotation of the rotary shaft portion 400.

The connecting link member 410 has one end connected to the rotating member 390 and the other end connected to the mover 130. [ As described above, the mover 130 is inserted and blocked by the connecting link member 410 when the rotating member 390 is rotated.

As described above, the input and shut-off operations can be smoothly implemented and the durability is improved. That is, since the charging and discharging operation of the mover is performed through the charging unit 200 and the closing link unit 300, which are formed of a plurality of link sections, the operation can be smoothly performed, the impact load is dispersed in a plurality of link sections, Can be improved.

Hereinafter, operation of the circuit breaker according to an embodiment of the present invention will be described with reference to the drawings.

3 and 4 are explanatory diagrams for explaining the operation of the circuit breaker according to an embodiment of the present invention.

That is, FIG. 3 is an explanatory view for explaining a case where the charging spring is compressed and the mover is in the blocking state, and FIG. 4 is an explanatory view for explaining a case where the charging spring is extended and the mover is in the charging state.

3 and 4, when the operator presses the input button 160, the charging member 260 is pressed by the charging rod 170 and the charging unit 200 is driven. That is, the charging pin 250 of the charging unit 200 is rotated.

Accordingly, the input latch 240, which is in a state of being held by the input pin 250, is rotated counterclockwise by the latch 230. At this time, a restoring force by the charging spring 122 is transmitted to the latch 230, and the latch 240 is rotated counterclockwise.

On the other hand, the latch 230 is rotated clockwise.

In the rotational driving mechanism of the latch 230, when the charging spring 122 is compressed, the latch 230 is restrained by the closing latch 240 and can not be rotated. However, as described above, when the locking of the closing latch 240 by the closing pin 250 is released, the closing latch 240 is rotated in the counterclockwise direction and the locking of the latch 230 by the closing latch 240 Lt; / RTI > Thus, the latch 230 is rotated.

As the charging spring 122 is extended and the first and second folding link members 214 and 216 are unfolded, the input link 220 is lifted and the latch 230 connected to the closing link 220 is lifted up by the charging spring 122, As shown in Fig.

Then, when the charging spring 122 is extended, the input link unit 300 is driven.

That is, as the charging spring 122 is extended, the input link member 310 connected to the charging spring unit 120 is rotated about the input link member rotational shaft 312. At this time, the input link member 310 is rotated counterclockwise.

When the input link member 310 is rotated as described above, the input link cam 320 is rotated counterclockwise together with the input link member 310 by the guide bar 314 of the input link member 310.

Then, when the closing link cam 320 is rotated, the first link member 330 connected via the moving shaft 332 is moved from the right side to the left side in Fig.

Accordingly, the second link member 340 connected to the first link member 330 via the link member connecting shaft 342 is moved. At this time, the first and second link members 330 and 340 are moved in a folded state to unfold.

There is a point where a force applied to the input link cam 320 and the first link member 330 is changed during rotation of the input link cam 320. The first link member 330 and the second link member 330 When the second link member 340 is unfolded, the first and second link members 330 and 340 may not be folded without an external force.

Meanwhile, when the first and second link members 330 and 340 are deployed, the link member connecting shaft 342 connecting the first and second link members 330 and 340 is moved. Thereby, the blocking rod connecting link member 350, which is connected to the link member connecting shaft 342, is moved together with the link member connecting shaft 342.

However, even when the blocking link connecting link member 350 is moved, the cam member 360 is restrained by the blocking latch 370 and can not be rotated.

The rotation member 390 connected to the second link member 340 rotates about the rotation axis portion 400 in accordance with the movement of the second link member 340.

The connecting link member 410 connected to the rotating member 390 rotates in conjunction with the rotating member 390 so that the mover 130 connected to the connecting link member 410 is rotated counterclockwise.

In this manner, the closing operation in which the mover 130 contacts the upper terminal 180 is performed.

As described above, since the charging and discharging operations are performed through the charging unit 200 and the closing link unit 300, which are composed of a plurality of link sections, the operation can be smoothly performed and the impact load can be dispersed in a plurality of link sections, Can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be obvious to those of ordinary skill in the art.

100: Breaker
120: Charging spring unit
130: mover
200: charging unit
300: input link unit

Claims (10)

A charging spring unit installed at a lower end of the side wall member;
A charging unit connected to the charging spring unit to compress and extend the charging spring; And
A charging link unit connected to the charging spring unit for performing charging and discharging operations of the mover;
/ RTI >
The input link unit
An input link member connected to the charging spring unit and rotatably installed on a rotation shaft of the input link member;
An input link cam rotatably installed on the rotation shaft of the input link member;
A first link member connected to the input link cam;
A second link member connected to the first link member through a link member connection shaft and folded with the first link member;
A link member connected to the link member connecting shaft;
A cam member connected to and rotated by the blocking link connecting member;
A blocking latch connected to the cam member and rotated according to rotation of the cam member;
A blocking pin formed with an insertion groove to adjust the rotation of the blocking latch;
A rotating member connected to the second link member and driving the second link member by rotation;
A rotating shaft portion rotated in association with the rotating member; And
A connecting link member having one end connected to the rotating member and the other end connected to the mover;
.
The method according to claim 1,
The charging spring unit includes a supporting member for supporting one end of the charging spring, a spring guide for supporting the other end of the charging spring, and the charging spring.
2. The apparatus of claim 1, wherein the charging unit
A folding link member connected to the charging spring unit;
An input link having one end connected to a connecting shaft for connecting the folding link member and moving up and down with the connecting shaft;
A latch connected to the other end of the closing link and rotated about the latch axis;
An input latch connected to the latch and rotated according to rotation of the latch; And
An insertion pin formed with an insertion groove to adjust the rotation of the insertion latch;
.
The method of claim 3,
The input latch is installed on the input latch shaft,
Wherein a spring is provided on the insertion latch shaft and the insertion latch shaft is rotated when the latch is released from restraint by the latch.
The method of claim 3,
Wherein the folding link member includes a first folding link member rotatably installed on an installation shaft having one end connected to the connection shaft and the other end fixed to the side wall member and a second folding link member having one end connected to the connection shaft, And a second folding link member connected to the second folding link member.
delete The method according to claim 1,
Wherein the input link member is provided with a guide bar, and the input link cam is provided with a guide hole through which the guide bar is moved.
The method according to claim 1,
Wherein a cam member spring for providing a restoring force to the cam member is provided on a cam member rotation shaft on which the cam member is provided.
The method according to claim 1,
Wherein a dead point is formed in which a force applied to the closing link cam and the first link member is switched when the closing link cam rotates.
2. The apparatus of claim 1, wherein the input link unit
Further comprising a guide member for guiding a rotation path of the closing link cam, the first link member, the linking link member for camshaft connection and the cam member.
KR1020150066292A 2015-05-12 2015-05-12 Air circuit breaker KR101692787B1 (en)

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KR1020150066292A KR101692787B1 (en) 2015-05-12 2015-05-12 Air circuit breaker
CN201610305809.4A CN106158532B (en) 2015-05-12 2016-05-10 Breaker

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KR1020150066292A KR101692787B1 (en) 2015-05-12 2015-05-12 Air circuit breaker

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KR101692787B1 true KR101692787B1 (en) 2017-01-05

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KR102005957B1 (en) * 2018-12-14 2019-08-01 (주)에스티아이 Locking apparatus for chemical supply
CN110634717B (en) * 2019-09-29 2021-10-19 中天电气技术有限公司 Aerify cabinet circuit breaker
KR20210122565A (en) 2020-04-01 2021-10-12 엘에스일렉트릭(주) N-phase mechanism assembly and molded-case circuit breaker include the same

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KR100771918B1 (en) 2006-10-17 2007-11-01 엘에스산전 주식회사 A switching mechanism for an air circuit breaker

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58115046U (en) * 1982-01-29 1983-08-05 三菱電機株式会社 Aerial disconnection
KR101191571B1 (en) 2011-06-08 2012-10-15 엘에스산전 주식회사 An air circuit breaker

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100771918B1 (en) 2006-10-17 2007-11-01 엘에스산전 주식회사 A switching mechanism for an air circuit breaker

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