WO2022211360A1 - 기중차단기 - Google Patents
기중차단기 Download PDFInfo
- Publication number
- WO2022211360A1 WO2022211360A1 PCT/KR2022/004102 KR2022004102W WO2022211360A1 WO 2022211360 A1 WO2022211360 A1 WO 2022211360A1 KR 2022004102 W KR2022004102 W KR 2022004102W WO 2022211360 A1 WO2022211360 A1 WO 2022211360A1
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- WO
- WIPO (PCT)
- Prior art keywords
- interlock
- plate
- key
- lever
- movement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/06—Interlocking mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the 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
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
Definitions
- the present invention relates to an air circuit breaker, and more particularly, to an air circuit breaker having an interlock device that restricts or allows moving in and out of a main body.
- Air Circuit Breakers are generally installed on low-voltage distribution lines and use air as the extinguishing medium to conduct transmission, transfer, and stop of the power system in a planned manner. It is a protective device.
- a pull-out type circuit breaker In the case of a pull-out type circuit breaker, it is divided into Disconnect Position, Test Position, and Connect Position according to the relative position of the circuit breaker inside the cradle.
- the disconnect position is the state in which the breaker main body is drawn out from the cradle and the control power terminal is disconnected (non-operational state)
- the test position is the state in which the breaker main body is drawn into the cradle for a predetermined distance and the control power terminal is connected and the circuit breaker is connected.
- the connect position is a state in which the main circuit is energized (running state) as the main circuit is fully inserted into the cradle and the main circuit is connected to the cradle terminal.
- the air circuit breaker is installed at the top of the low voltage distribution system and protects the load stage from high fault current. Therefore, the control of the air circuit breaker must be done very carefully, and no one other than the person concerned should control the circuit breaker.
- interlock devices are used in the air circuit breaker to prevent the unauthorized main circuit from being energized and to prevent arbitrarily moving the position of the circuit breaker for maintaining the operating or non-operating state or for user safety purposes.
- the interlock function is generally applied to the circuit breaker to prevent arbitrary power input, or applied to a cradle to arbitrarily prevent movement of the circuit breaker's position.
- the interlock device is implemented with two interlocks applied to the blocking body and the cradle.
- the present invention is to solve the above problems, and an object of the present invention is to provide an air circuit breaker that can simultaneously implement a function of restricting the input operation of the blocking body and a function of constraining the movement of the position of the blocking body inside the cradle will be.
- Another object of the present invention is to provide an air circuit breaker capable of maintaining the function of limiting movement of the position of the blocking body while maintaining the input limiting function of the blocking body by maintaining the OFF button of the blocking body.
- Another object of the present invention is to provide an air circuit breaker that can immediately reflect customer needs by easy maintenance, repair and replacement of the operating means constraining the interlock device.
- a cradle and a blocking body drawn into and out of the cradle; an interlock lever connected to the off button of the blocking body to vertically move; a transfer device provided at a lower portion of the cradle, and the transfer device is installed to be horizontally movable to limit the movement of the interlock lever when it moves in one direction, and when it moves in the other direction
- An air circuit breaker is provided with a key interlock assembly allowing movement of the interlock lever.
- the transfer device is provided with a shutter plate movably installed to restrict or allow movement according to the position of the interlock lever, and when the key interlock assembly moves in one direction, the shutter plate moves In the state of limiting and moving in the other direction, it is possible to allow movement of the shutter plate.
- the key interlock assembly may include a housing plate coupled to the transport unit; an interlock plate movably installed on the housing plate; and a key assembly that moves the interlock plate.
- a key hole in which the key assembly is installed may be formed on the front surface of the housing plate.
- through holes may be formed in both sides of the housing plate so that the interlock plate can slide.
- the interlock plate may be provided with a spring insertion portion capable of installing a plate return spring.
- a contact portion receiving the force of the key assembly may be protruded from the interlock plate.
- the interlock plate may be formed with a bending restraint portion limiting or allowing the movement of the interlock lever.
- the restraint portion may be disposed at a height between the intervals at which the interlock lever moves up and down.
- the key assembly may include a rotating cylinder rotated by a key, and a lever rotating together with the rotating cylinder may be provided at a rear portion of the key assembly.
- the lever may be formed with a bent pressing portion for applying a force to the contact portion.
- two key assemblies may be provided as a pair, and at least one of the pair of key assemblies may be positioned at a specific position to fix the interlock plate at the locking position.
- one side of the open cradle a blocking body drawn in and out from one side of the cradle; an interlock lever connected to the button of the blocking body and positioned at a first position when the button is pressed and positioned at a second position when the button is not pressed; a transfer device provided in the cradle to draw in and withdraw the blocking body; and the interlock lever is movably installed in front of the transfer device to fix the interlock lever to the first position in a locked position, and moves the interlock lever from the first position to the second position in the unlocked position.
- An air breaker is provided that includes an interlock plate that allows it to be moved into position.
- a cover plate that covers the outer surface of the transfer device and has a hole formed therein; and a shutter plate positioned between the transfer unit and the cover plate and configured to open and close the cover plate hole, wherein the interlock plate is moved to the locked position to close the cover plate hole.
- a movement of opening and closing the cover plate hole of the shutter plate may be allowed while the plate is fixed in position and moved to the release position.
- it may include an operating means for moving the interlock plate.
- an accommodating groove for accommodating the operation means may be formed on an outer surface of the cover plate, and the interlock plate may be disposed on an inner surface of the cover plate.
- the operating means may be a key assembly.
- a key assembly hole through which the key assembly can pass may be formed in the bottom surface of the receiving groove.
- first guide protrusions formed along the movement direction of the interlock plate may be formed on both sides of the interlock plate on the cover plate.
- a second guide protrusion protruding toward the interlock plate may be formed on the cover plate, and a guide groove may be formed in the interlock plate to extend along a movement direction of the interlock plate and into which the second guide protrusion is inserted.
- the air circuit breaker according to the embodiment of the present invention fixes the interlock lever to the first position corresponding to the state in which the off button is pressed by positioning the interlock plate in the locked position, and the shutter plate is moved to the handle.
- the position of the handle insertion hole of the cover plate to be inserted at the closing position the function of restricting the input operation of the blocking main body and the function of restricting the positional movement of the blocking main body in the cradle can be simultaneously implemented.
- the air circuit breaker operates the key assembly to position and fix the interlock plate at a position that limits the movement of the interlock lever and the shutter plate, thereby maintaining the input limiting function of the blocking body while maintaining the position of the blocking body. You can keep the movement limit function.
- a receiving groove for accommodating the key assembly is formed on the outer surface of the cover plate, and an interlock plate is disposed on the inner surface of the cover plate, so that the cover plate is not detached from the air circuit breaker. Since the key assembly can be removed in a non-removable state, it is easy to maintain, repair, and replace the key assembly, so that customer needs can be immediately reflected.
- the air circuit breaker according to the embodiment of the present invention is provided with two sets of key assemblies for operating the interlock plate, and can be used in parallel with two or more other circuit breakers.
- FIG. 1 is a perspective view of an air circuit breaker according to a first embodiment of the present invention.
- the housing is indicated by a dotted line, and the configuration seen through the housing is indicated by a solid line.
- FIG. 2 and 3 are perspective views of the air circuit breaker according to the first embodiment of the present invention
- FIG. 2 is a state in which the blocking body and the cradle are separated
- FIG. 3 is a state in which the blocking main body is drawn into the cradle.
- the components necessary for understanding the present invention are mainly illustrated, and the housing and other components are omitted.
- FIG. 4 is a perspective view of a cradle according to a first embodiment of the present invention.
- FIG. 5 is a perspective view of the transfer device unit under the cradle according to the first embodiment of the present invention shown in FIG. 4 .
- FIG. 6 is a perspective view showing the transfer device according to the first embodiment of the present invention in a state in which the shutter plate is separated from FIG. 5 . At this time, for the description of the invention, the transfer unit cover plate is removed.
- FIG. 7 is a perspective view of a key interlock assembly according to a first embodiment of the present invention.
- FIG. 8 is an exploded perspective view of the key interlock assembly according to the first embodiment of the present invention shown in FIG.
- FIG. 9 is a partial perspective view of the blocking body according to the first embodiment of the present invention in a state in which the main body is drawn into the cradle.
- FIG. 10 is a detailed view of the key interlock assembly shown in FIG. 9 as viewed from another angle;
- FIG. 11 and 12 are front views of the air circuit breaker.
- FIG. 11 shows a key interlock release state
- FIG. 12 shows a key interlock lock state.
- FIG. 13 is a view illustrating an operation process of the interlock plate, the shutter plate, and the interlock lever according to the first embodiment of the present invention. For the purpose of explanation of the invention, each component is shown briefly.
- FIG. 14 to 17 are views illustrating the key assembly and the interlock plate according to the first embodiment of the present invention as viewed from the transfer module side to the cover plate side direction. It is a view showing a state in an unlocked state, FIG. 15 is a view showing a case in which the first key assembly is in a locked state and the second key assembly is in an unlocked state, and FIG. 16 is a view showing the first key assembly is in an unlocked state and a second key The assembly is in a locked state, and FIG. 17 is a diagram illustrating a case in which both the first and second key assemblies are in the locked state.
- FIG. 18 is a perspective view of a transfer device under the cradle according to a second embodiment of the present invention.
- 19 and 20 are exploded perspective views viewed from different angles of the transfer device according to the second embodiment of the present invention.
- 21 is an exploded perspective view of an interlock plate, a front cover plate, a key assembly, and a cover member according to a second embodiment of the present invention.
- FIG. 22 is a partial perspective view of the blocking body according to the second embodiment of the present invention in a state in which the main body is drawn into the cradle.
- 23 and 24 are perspective views viewed from different angles of the key assembly and the interlock plate according to the second embodiment of the present invention.
- 25 is an exploded perspective view of a key assembly and an interlock plate according to a second embodiment of the present invention.
- FIG. 26 to 29 are views illustrating the key assembly and the interlock plate according to the second embodiment of the present invention as viewed from the transfer module side to the cover plate side direction. It is a view showing a state in an unlocked state, FIG. 27 is a view showing a case in which the first key assembly is in a locked state and the second key assembly is in an unlocked state, and FIG. 28 is a view showing the first key assembly is in an unlocked state and a second key The assembly is in a locked state, and FIG. 29 is a diagram illustrating a case in which both the first and second key assemblies are in the locked state.
- an element “in front”, “behind”, “above” or “below” of another element means that, unless otherwise specified, it is in direct contact with another element, such as “front”, “behind”, “above” or “below”. It includes not only those disposed under the “lower part” but also cases in which another component is disposed in the middle.
- a component when a component is “connected” with another component, it includes not only direct connection to each other but also indirect connection to each other unless otherwise specified.
- FIG. 1 is a perspective view of an air circuit breaker according to a first embodiment of the present invention.
- the housing is indicated by a dotted line
- the configuration seen through the housing is indicated by a solid line.
- 2 and 3 are perspective views of the air circuit breaker according to the first embodiment of the present invention, FIG. 2 is a state in which the blocking body and the cradle are separated, and FIG. 3 is a state in which the blocking main body is drawn into the cradle.
- the components necessary for understanding the present invention are mainly illustrated, and the housing and other components are omitted.
- FIG. 4 is a perspective view of a cradle according to a first embodiment of the present invention.
- FIG. 5 is a perspective view of the transfer device unit under the cradle according to the first embodiment of the present invention shown in FIG. 4 .
- FIG. 6 is a perspective view showing the transfer device according to the first embodiment of the present invention in a state in which the shutter plate is separated from FIG. 5 . At this time, for the description of the invention, the transfer unit cover plate is removed.
- 7 is a perspective view of a key interlock assembly according to a first embodiment of the present invention; 8 is an exploded perspective view of the key interlock assembly according to the first embodiment of the present invention shown in FIG.
- FIG. 9 is a partial perspective view of the blocking body according to the first embodiment of the present invention in a state in which the main body is drawn into the cradle.
- FIG. 10 is a detailed view of the key interlock assembly shown in FIG. 9 as viewed from another angle;
- the air circuit breaker 1 includes a housing 3, a cradle 200, and a blocking body 100 that is drawn in and out of the cradle 200. and an interlock lever 235 connected to the off button 120 of the blocking body 100 to vertically move;
- the shutter plate 240 is installed to be horizontally movable on the transfer device 210 provided at the lower portion of the cradle 200, and the movement is restricted or allowed depending on the position of the interlock lever 235; and , the transfer device 210 is installed so as to be able to move horizontally, and in a state of moving in one direction (locked state), it restricts the movement of the interlock lever 235 and the shutter plate 240, and moves in the other direction.
- the key interlock assembly 250 that allows the movement of the interlock lever 235 and the shutter plate 240 is provided.
- an accommodation space for accommodating the cradle 200 and the blocking body 100 may be provided inside the housing 3 .
- the housing 3 may serve to protect the main components of the air circuit breaker 1 from external impacts and the like.
- a plurality of holes may be formed in the housing 3 so that the configuration for operating the cradle 200 and the blocking main body 100 and the configuration of the distribution line can be exposed to the outside.
- the key interlock assembly 250 includes a housing plate 251 fixed to the transport unit 210 and linearly movably installed on the housing plate 251 so as to lower the interlock lever 235 and the and an interlock plate 270 restricting movement of the shutter plate 240 .
- the blocking body 100 and the cradle 200 are shown.
- the blocking main body 100 and the cradle 200 show only the main parts and other parts are omitted so that the internal configuration is visible and the gist of the present invention is easily understood.
- the blocking main body 100 includes a contact part (not shown), an opening/closing mechanism part 110 that provides mechanical force to open and close the contact part, a trip part, an arc extinguishing part 150, and the like.
- the opening and closing mechanism unit 110 is provided with an on button 128 and an off button 120 for opening and closing the contact unit.
- the on button 128 or the off button 120 is pressed, the main shaft 115 rotates clockwise or counterclockwise by the power of the opening and closing mechanism unit 110 to open and close the contact unit. That is, the main circuit is cut off or energized.
- the off button 120 is installed to be able to rotate based on the rotation shaft 122 .
- the button moves in a reclining manner (as viewed from the left side of FIG. 9 ) and rotates counterclockwise based on the rotation shaft 122 .
- the off button 120 is provided with a torsion spring and returns to its original position when the external force is removed.
- a locking part 124 is formed to protrude from the lower end of the off button 120 .
- the locking part 124 may be installed to protrude through the side surface of the opening/closing mechanism part 110 .
- An off button action hole 112 is formed on one side of the opening and closing mechanism 110 , and the locking part 124 passes through the off button action hole 112 and extends to the outside of the opening and closing mechanism 110 .
- the locking part 124 operates the interlock connection members 130 and 140 .
- Interlock connection members 130 and 140 are provided on one side of the opening and closing mechanism unit 110 .
- the interlock connection members 130 and 140 may be installed on the side plate 114 of the opening/closing mechanism unit 110 .
- a switching member 130 is provided.
- the switching member 130 transmits the operation of the off button 120 to the lifting member 140 .
- the switching member 130 serves to convert the rotational movement of the locking part 124 of the off button 120 into the lifting movement of the lifting member 140 while performing the rotational movement.
- the conversion member 130 may be formed in the form of a plate having two arms that extend at an appropriate angle around the conversion member rotation shaft 132 provided in the middle portion.
- a locking hole 134 is formed at one end of the conversion member 130 .
- the locking part 124 of the off button 120 is inserted into the locking hole 134 , and the movement of the off button 120 is transmitted to the switching member 130 .
- the locking part 124 operates the switching member 130 while performing a predetermined sliding motion within the locking hole 134 .
- a hook 136 is formed at the other end of the conversion member 130 .
- the movement of the switching member 130 is transmitted to the lifting member 140 through the hook 136 .
- the arm having the other end of the conversion member 130 is bent in a bow shape so that the hook 136 moves close to a vertical linear motion.
- the lifting member 140 is provided to move up and down.
- the lifting member 140 may be inserted into a groove formed at the lower end of the side portion of the opening/closing mechanism unit 110 to move up and down.
- a hook hole 142 into which the hook 136 of the switching member 130 is inserted is formed at one end (upper end) of the lifting member 140 .
- the lifting member 140 moves up and down.
- An acting portion 144 is formed at the other end (lower end) of the lifting member 140 .
- the action part 144 may be inserted into a groove formed at the lower end of the side part of the opening/closing mechanism part 110 to move up and down.
- An action plate 146 is formed to protrude from the action portion 144 .
- the acting part 144 is disposed on the outside of the opening and closing mechanism 110 , the side plate 114 , and the acting plate 146 is installed inside the opening and closing mechanism 110 , the side plate 114 .
- the action plate 146 moves the interlock lever 235 (see FIG. 10).
- the off button 120 When the off button 120 is pressed, the off button 120 rotates counterclockwise, and in association with this, the switching member 130 rotates clockwise, and the lifting member 140 moves upward.
- the off button 120 rotates clockwise to return to the original position by the restoring force of the torsion spring, and in conjunction with this, the switching member 130 rotates counterclockwise, The lifting member 140 moves downward.
- the on button 128 is disposed adjacent the off button 120 .
- the on button 128 operates the opening/closing mechanism 110 so that the input operation occurs. In this case, the main circuit is energized.
- the opening/closing mechanism 110 is put into operation, the movable contact of the contact part contacts the fixed contact, and the main circuit is energized.
- the on button 128 does not operate when the off button 120 is pressed. That is, the on button 128 operates only in a state in which the off button 120 is not pressed.
- the cradle 200 is formed in the form of a box with an open front, so that the blocking body 100 is drawn in and out.
- the cradle 200 supports the blocking body 100, and the blocking body 100 moves to a disconnected position, a test position, and a service position, and at each position. allow it to be fixed.
- the cradle 200 is connected to the main circuit to mediate the connection between the circuit breaker body 100 and the main circuit.
- a cradle terminal 205 is provided on the rear portion (rear plate) of the cradle 200 .
- the cradle terminal 205 includes a power-side terminal and a load-side terminal, and the power-side terminal and the load-side terminal are provided for each phase.
- the power-side terminal and the load-side terminal are provided for each phase.
- three terminals are provided on the power side and the terminal on the load side, respectively.
- An arc box (not shown) is provided on the upper surface of the cradle 200 .
- the arc gas flowing out of the arc extinguishing unit 150 of the blocking main body 100 is discharged to the outside through the arc box.
- a control power supply unit 206 may be provided on the upper surface portion (upper surface plate) of the cradle 200 .
- the control power supply unit 206 may perform a maintenance operation such as testing a blocking operation or removing residual current in a state in which the cradle 200 and the blocking body 100 are not connected to the main circuit.
- Mechanisms for assisting the inlet/outlet of the blocking main body 100 may be installed on the side surface of the cradle 200 .
- the guide 208 may be provided inside the side portion of the cradle 200 .
- the lower surface of the cradle 200 is provided with a transfer device 210 capable of moving the blocking main body 100 while supporting the blocking main body 100 at the same time.
- the transfer unit 210 includes a base plate 212 , a front operation unit 215 , and a transfer unit cover plate 230 .
- the transfer device 210 is generally described.
- the base plate 212 forms the lower surface of the transfer device 210 .
- the front control unit 215 inserts the handle 180 to move the blocking main body 100 , display the position of the blocking main body 100 , and perform operations capable of restricting the movement of the blocking main body 100 .
- the conveying part cover plate 230 protects an in/out device such as a screw.
- the cradle 200 is shown in FIG. 4
- the transfer device 210 is shown in FIGS. 5 and 6 .
- 5 shows the front cover plate 220 of the front control unit 215 is removed
- FIG. 6 shows the transport unit cover plate 230 is removed and the shutter plate 240 is separated. .
- the base plate 212 forms the lower surface of the cradle 200 and the lower surface of the transfer device 210 at the same time.
- a pull-out device is installed on the upper surface of the base plate 212 , and a front operation unit 215 is provided on the front surface.
- a pull-in/out operation assembly is installed in the middle portion of the base plate 212 .
- the pull-out operation assembly includes a pull-out screw 217 and a position indicator screw 218 .
- a lead-in/out screw 217 that receives the force of the handle 180 and provides power to the blocking main body 100 to move forward and backward is disposed in the longitudinal direction at the center, and is located next to the lead-in/out screw 217 Indicating screws 218 are arranged side by side.
- An insertion groove 216 formed in a prismatic shape (eg, a hexagonal shape) is formed at the front end of the lead-in/out screw 217 , so that power can be transmitted by inserting the handle 180 .
- the front portion 214 of the base plate 212 is bent from the lower surface to form the front surface.
- the front cover plate 220 is coupled to the front portion 214 of the base plate 212 .
- Various grooves are formed in the front part 214 of the base plate 212 so that the lead-in/out screw 217 or the position indicating screw 218 may be exposed.
- An interlock lever 235 is installed on the base plate 212 .
- the interlock lever 235 is best shown in FIG. 10 .
- the interlock lever 235 is installed to be movable up and down.
- the interlock lever 235 is subjected to an upward force by the lever return spring 537 . Therefore, in the normal state not receiving external force, the interlock lever 235 is in the raised position.
- the head 236 of the interlock lever 235 protrudes above the transport cover plate 230 through the lever operation hole 232 of the transport cover plate 230 (see FIG. 5 ).
- the head 236 of the interlock lever 235 is in contact with the working plate 146 of the lifting member 140 (refer to FIGS. 9 and 10 ). Accordingly, when the off button 120 is pressed, the interlock lever 235 rises as the elevating member 140 rises, and when the off button 120 returns to its original position, the interlock lever 235 descends as the elevating member 140 descends. 235) descends.
- the position of the interlock lever 235 raised as the off button 120 is pressed is referred to as a first position, and as the off button 120 returns to its original position, the position of the interlock lever 235 lowered is called the second position.
- the interlock lever 235 may be formed in a plate shape, and a part of the interlock lever 235 protrudes in front of the front portion 214 of the base plate 212 .
- the interlock lever 235 prevents the shutter plate 240 from moving. That is, in a state in which the interlock lever 235 is lowered because the off button 120 is not pressed, the shutter plate 240 is caught by the interlock lever 235 and movement to the left is restricted.
- the handle 180 cannot be inserted, so that the movement of the blocking main body 100 is impossible.
- the leftward movement of the shutter plate 240 is possible only when the interlock lever 235 is raised by pressing the off button 120 (that is, in the first position), and at this time, the movement of the blocking body 100 is becomes possible
- the front cover plate 220 has a first key assembly insertion hole 222 , a second key assembly insertion hole 224 , a handle insertion hole 226 , a handle storage hole 228 , and a position indicating screw hole ( 229) are formed.
- a shutter plate 240 is provided on the front operation unit 215 .
- the shutter plate 240 is disposed in front of the front portion 214 of the base plate 212 , and is installed in the front cover plate 220 to be movable in a straight line from side to side.
- a movement limiter 242 is provided at the lower left end of the shutter plate 240 .
- the movement limiter 242 may be formed to protrude from the lower left end of the shutter plate 240 .
- the interlock lever 235 When the interlock lever 235 is raised, the restraint on the shutter plate 240 is released, so that the shutter plate 240 can move to the left. However, in the state in which the interlock lever 235 is lowered (ie, the state in the second position), the movement limiter 242 is caught by the interlock lever 235 to limit leftward movement of the shutter plate 240 .
- a shutter portion handle insertion hole 243 into which the handle 180 can be inserted is formed in the shutter plate 240 .
- the shutter part handle insertion hole 243 is formed such that only a part of the insertion groove 216 of the lead-in/out screw 217 is partially exposed in a normal state not receiving external force (see FIGS. 5 and 6 ). That is, the insertion preventing part 244 is formed in the shutter plate 240 adjacent to the shutter part handle insertion hole 243 (the left part in the drawing). Insertion of the handle 180 is restricted by the insertion prevention portion 244 .
- the interlock lever 235 When the off button 120 is not pressed, the interlock lever 235 is in the lowered state (that is, in the second position), so the movement of the shutter plate 240 is limited, and thus the Insertion of handle 180 is restricted. That is, since the handle 180 cannot be inserted into the insertion groove 216 of the lead-in/out screw 217, movement with respect to the blocking main body 100 is limited.
- the interlock lever 235 When the off button 120 is pressed, the interlock lever 235 is in an elevated state (that is, in the first position), so movement of the shutter plate 240 is allowed, and the handle 180 is inserted into the shutter part handle insertion hole ( 243), it can be inserted into the insertion groove 216 of the lead-in/out screw 217. Accordingly, movement with respect to the blocking main body 100 is possible.
- a shutter return spring 248 is provided to provide a force to return the shutter plate 240 to its original position.
- Spring fixing parts 245 and 246 are provided on the shutter plate 240 so that the shutter return spring 248 can be installed.
- a portion of the shutter return spring 248 is fixed to a portion of the front cover plate 220 .
- the shutter plate 240 In a normal state in which no external force acts, the shutter plate 240 is moved to the right to partially cover the insertion groove 216 .
- the insertion prevention part 244 When the handle 180 is inserted into the handle insertion hole 226 in a state in which the restraint by the interlock lever 235 is released, the insertion prevention part 244 is pushed against the handle 180 and the shutter plate 240 moves to the left, and The user may rotate the lead-in/out screw 217 by inserting the handle 180 into the insertion groove 216 of the lead-in/out screw 217 .
- the shutter plate 240 returns to its original position by the restoring force of the shutter return spring 248 .
- a key interlock assembly 250 is provided. 7 shows a perspective view of the key interlock assembly 250 , and FIG. 8 shows an exploded perspective view of the interlock lever 235 .
- the key interlock assembly 250 is provided to simultaneously perform a function of preventing the input of the main body and a function of limiting the movement of the blocking main body 100 to each position.
- the key interlock assembly 250 includes a housing plate 251 , a first key assembly 260 , a second key assembly 265 , and an interlock plate 270 .
- the housing plate 251 may be formed in a box shape or a plate having six sides of top, bottom (lower), left, right, front, and rear. Through-holes are formed in both left and right side surfaces of the housing plate 251 , respectively. That is, the first side through-hole 252 is formed on the first side of the housing plate 251 , and the second side through-hole 253 is formed on the second side of the housing plate 251 .
- the interlock plate 270 may move through the through holes 252 and 253 of the housing plate 251 .
- a first keyhole 255 into which the first key assembly 260 can be inserted and fixed and a second keyhole 256 into which the second key assembly 265 can be inserted and fixed are formed on the front surface of the housing plate 251 . .
- a fixing hole 258 is formed in the lower surface of the housing plate 251 so that the housing plate 251 can be fixedly installed to the base plate 212 .
- a first key assembly 260 and a second key assembly 265 are provided.
- a first key assembly 260 can be rotated with a first key 261 (ie, switched to an unlocked or locked state), and a second key assembly 265 can be rotated with a second key 266 . (ie transition to unlocked or locked state).
- each key 261,266 can be withdrawn only when each key assembly 260 and 265 is locked. That is, each of the keys 261,266 cannot be pulled out when the respective key assemblies 260 and 265 are released.
- a first key lever 262 rotating together with the first rotary tube 264 of the key assembly is provided at the rear of the first key assembly 260
- the second key assembly 265 is provided at the rear of the second key assembly 265
- a second key lever 267 that rotates together with the rotary tube 269 is provided.
- Pressing parts 263 and 268 for moving the interlock plate 270 are respectively bent and formed in each of the key levers 262 and 267 .
- the interlock plate 270 is installed on the housing plate 251 to be linearly movable from side to side.
- the interlock plate 270 slides through the through holes 252 and 253 of the housing plate 251 .
- the interlock plate 270 is provided with a spring insertion part 271 to which the plate return spring 279 can be installed.
- a stop pin 272 is provided on one side of the spring insertion part 271 .
- a plate return spring 279 is inserted into the spring insert 271 .
- the plate return spring 279 is installed between the second side of the housing plate 251 and the spring insertion portion 271 of the interlock plate 270 . Accordingly, in a normal state in which no external force acts, the interlock plate 270 is in a state of moving to the left (a direction away from the interlock lever). When the interlock plate 270 moves to the right (the direction closer to the interlock lever) by the action of an external force (locking action of the key), the elastic force is stored in the plate return spring 279, and when the external force is removed, the interlock plate 270 returns to the original position (moves to the left) by the restoring force of the plate return spring 279 .
- a first contact portion 273 and a second contact portion 274 are respectively protruded from the interlock plate 270 .
- the first contact portion 273 is a portion to which the first pressing portion 263 of the first key assembly 260 contacts and receives a force
- the second contact portion 274 is a second pressing portion of the second key assembly 265 . (268) is the part that receives the force in contact.
- the interlock plate 270 is provided with a support 275 .
- the support 275 is inserted into the groove 238 of the interlock lever 235 to support the interlock lever 235 .
- the interlock plate 270 is formed with a restraining portion 276 bent.
- the interlock plate 270 may be configured as a vertical plate, and the restraining unit 276 may be configured as a horizontal plate.
- the restraint portion 276 is disposed at the height of the lower end of the steady state interlock lever 235 . That is, the restraining part 276 is caught on the interlock lever 235 in a normal state in which no external force is applied to prevent the right movement of the interlock plate 270 . That is, the rightward movement of the interlock plate 270 is possible only when the off button 120 is pressed and the interlock lever 235 is raised (ie, in the first position). In other words, locking by the key interlock assembly 250 is possible only while the off button 120 is pressed.
- the restraining part 276 may enter the lower part of the interlock lever 235 .
- the first key assembly 260 or the second key assembly 265 rotates in the locked state and the interlock plate 270 moves to the right. Since the lowering of the interlock lever 235 is limited by this, the OFF state is maintained. In addition, since the movement of the shutter plate 240 is also restricted by the restraining part 276 , the handle 180 cannot be inserted, so the movement of the blocking main body 100 is also limited. Hereinafter, such a position of the interlock lever 235 is referred to as a lock position.
- FIG. 11 and 12 are front views of the air circuit breaker.
- FIG. 11 shows a key interlock release state
- FIG. 12 shows a key interlock lock state.
- 13 is a view illustrating an operation process of the interlock plate, the shutter plate, and the interlock lever according to the first embodiment of the present invention. For the purpose of explanation of the invention, each component is shown briefly.
- the main circuit can be energized by pressing the on button 128 in a state in which the off button 120 is not pressed as shown in FIG. 11 .
- the force constraining the interlock lever 235 is removed by the switching member 130 and the elevating member 140 interlocking therewith, and the interlock lever 235 returns to the interlock. It is in an elevated state (ie, a state positioned in the first position) by receiving the force of the spring 237 .
- the shutter plate 240 can be moved to the left, so that the handle 180 can be moved with the lead-in/out screw 217 It can be inserted into the insertion groove 216 of the blocker main body 100 to move forward and backward.
- the air circuit breaker according to the first embodiment of the present invention can simultaneously implement a function for restricting the input operation of the blocking body and a function for restricting the positional movement of the blocking body within the cradle.
- FIG. 14 to 17 are views illustrating the key assembly and the interlock plate according to the first embodiment of the present invention as viewed from the transfer module side to the cover plate side direction. It is a view showing a state in an unlocked state, FIG. 15 is a view showing a case in which the first key assembly is in a locked state and the second key assembly is in an unlocked state, and FIG. 16 is a view showing the first key assembly is in an unlocked state and a second key The assembly is in a locked state, and FIG. 17 is a diagram illustrating a case in which both the first and second key assemblies are in the locked state.
- FIG 14 shows the key interlock assembly 250 in an unlocked state, wherein both the first key assembly 260 and the second key assembly 265 are in the unlocked state.
- the pressing parts 263 and 268 of each key assembly are separated from the contact parts 273 and 274 of the interlock plate 270 (released state).
- first key assembly 260 is in a locked state and the second key assembly 265 is in an unlocked state.
- first pressing portion 263 of the first key assembly 260 pushes the first contact portion 273 by turning the first key 261 , the interlock plate 270 moves in the direction of the interlock lever 235 (first 1 key assembly transitions to locked state).
- FIG 16 shows that the first key assembly 260 is in an unlocked state and the second key assembly 265 is in a locked state.
- the interlock plate 270 moves in the direction of the interlock lever 235 (first 2 key assembly transitions to locked state).
- the air circuit breaker according to the first embodiment of the present invention can maintain the position movement limiting function of the blocking body while maintaining the input limiting function of the blocking main body by maintaining the off button of the blocking main body pressed.
- first key assembly 260 and the second key assembly 265 may be used in combination in any suitable use and manner.
- the first key assembly 260 and the second key assembly 265 may be used independently or in parallel.
- either one of the first key assembly 260 and the second key assembly 265 may be used to operate in the key interlock locked state or the key interlock released state. That is, in a circuit breaker used alone, the input prevention function and the movement prevention function of the blocking body can be used by using only one key assembly.
- first key assembly 260 and the second key assembly 265 are used in parallel, for example, one key assembly is used with an upper or lower breaker and the other key assembly is a breaker of the same level.
- first key assembly 260 interlocks with the upper (lower) circuit breaker to apply a key interlock function (only one of the two circuit breakers operates by closing), and the second key assembly 265 interlocks with the emergency power supply.
- the key interlock function is applied (only one of the two circuit breakers connected to the main power and emergency power operates by closing). In this way, the user can use the key interlock assembly by appropriately combining the key interlock assembly to suit the purpose.
- the function of restricting the closing operation of the blocking body and the function of restricting the movement of the blocking body to each position in the cradle by the key interlock assembly, which is one interlock device, are simultaneously performed.
- the key assembly for operating the key interlock assembly is provided in two sets, so that it can be used in parallel with two or more other circuit breakers.
- the air circuit breaker according to the second embodiment of the present invention may have the same configuration as in the first embodiment except for the front cover plate, the key interlock assembly, and the interlock plate, and a detailed description thereof will be omitted.
- the front cover plate, the key interlock assembly and the interlock plate according to the second embodiment of the present invention will be mainly described.
- 18 is a perspective view of a transfer device under the cradle according to a second embodiment of the present invention.
- 19 and 20 are exploded perspective views viewed from different angles of the transfer device according to the second embodiment of the present invention.
- 21 is an exploded perspective view of an interlock plate, a front cover plate, a key assembly, and a cover member according to a second embodiment of the present invention.
- 22 is a partial perspective view of the blocking body according to the second embodiment of the present invention in a state in which the main body is drawn into the cradle.
- the transfer unit 510 may include a base plate 512 , a transfer unit cover plate 530 , and draw-in/out devices 517 and 518 .
- the base plate 512 may provide a frame in which other components of the transport unit 510 may be seated and supported.
- a front portion 514 is formed on the front portion of the base plate 512 and is bent upward to cover the front of the withdrawal devices 517 and 518 .
- the pull-out devices 517 and 518 may include a pull-out screw 517 and a locating screw 518 .
- a hole for exposing the front end of the lead-in screw 517 and the front end of the positioning screw 518 to the front is formed in the front part 514 .
- the interlock lever 535 is installed on the front part of the base plate 512 to be movable up and down. At this time, the interlock lever 535 is formed with a triangular-shaped head 536 whose length becomes narrower toward the upper side.
- a lever return spring 537 having one side fixed to the base plate 512 is installed below the interlock lever 535 .
- the interlock lever 535 is subjected to an upward force by the lever return spring 537 . Accordingly, in a normal state not receiving external force, the interlock lever 535 is positioned at the raised first position.
- the head 536 of the interlock lever 535 passes through the lever operation hole 532 formed on the upper surface of the transport cover plate 530 to the upper side of the transport cover plate 530 . protrude The head 536 protruding upward of the transfer unit cover plate 530 is pressed by the lower end of the lifting member 440 .
- the off button 420 When the off button 420 is pressed, the off button 420 moves and rotates to the rear side, and in conjunction with this, the switching member 430 moves in a clockwise direction (as viewed from the left in FIG. 22 ) around the switching member rotation shaft 432 . rotation based on time). Correspondingly, the lifting member 440 may move upward, and the interlock lever 535 may rise and move to the first position.
- the off button 420 When the external force pressing the off button 420 is removed, the off button 420 returns to its original position by the restoring force of the torsion spring, and in conjunction with this, the switching member 430 moves in a counterclockwise direction (when viewed from the left in FIG. 22 ). is rotated based on Correspondingly, the lifting member 440 moves downward, and the interlock lever 535 descends and is then fixed at the second position.
- the off button, the shifting member, the lifting member and the interlock lever according to the second embodiment of the present invention may have the same configuration as the off button, the shifting member, the lifting member and the interlock lever according to the first embodiment of the present invention, which Since it has been described in detail together with FIG. 9 , a detailed description thereof will be omitted.
- a shutter plate 540 is installed on one front side of the front part 514 .
- the shutter plate 540 may include a movement limiting part 542 , a shutter part handle insertion hole 543 , an insertion preventing part 544 , and a shutter return spring 548 .
- the shutter plate 540 and its lower components 542,543, 544,548 may be configured in the same manner as in the first embodiment of the present invention.
- a front cover plate 520 covering the front surface of the transfer unit 510 is positioned in front of the transfer unit 510 and the shutter plate 540 .
- an interlock plate 570 and key assemblies 560 and 565 which will be described later, are installed on the front cover plate 520 .
- a key assembly receiving groove 521 is formed on the front surface of the front cover plate 520 .
- An interlock plate 570 is installed movably in a horizontal direction at a portion corresponding to the key assembly receiving groove 521 on the rear surface of the front cover plate 520 .
- the key assembly receiving groove 521 is opened forward.
- a key assembly hole is formed in the bottom surface of the key assembly receiving groove 521 .
- the key assemblies 560 and 565 penetrate the key assembly hole and engage with the interlock plate 570 positioned at the rear of the front cover plate 520 , so that the interlock plate 570 can move in a horizontal direction.
- the air circuit breaker according to the second embodiment of the present invention can separate the key assemblies 560 and 565 without disassembling the front cover plate 520 from the transfer device 510, the key assemblies 560 and 565 ) is easy to maintain, repair and replace, and customer needs can be immediately reflected.
- the key assemblies 560 and 565 may be replaced with other actuating means for moving the interlock plate 570 .
- the key assemblies 560 and 565 may be replaced with an electronic device comprising a user-operable electronic interface and a motor for moving the interlock plate 570 .
- a receiving groove cover member 527 capable of covering the key assembly receiving groove 521 is installed on the front cover plate 520 . Accordingly, the key assemblies 560 and 565 accommodated in the key assembly accommodating groove 521 may be protected from the outside. In addition, arbitrary access by third parties to key assemblies 560 and 565 may be blocked. Screw grooves for coupling the receiving groove cover member 527 to the front cover plate 520 are respectively provided on both sides of the receiving groove cover member 527 and the key assembly receiving groove 521 .
- the front cover plate 520 has a handle insertion hole 526 , a handle storage hole 528 , and the like.
- the handle insertion hole 526 is formed at a position corresponding to the tool groove of the lead-in/out screw 517 . Accordingly, the handle may be coupled to the tool groove through the handle insertion hole 526 . Also, the handle insertion hole 526 may be opened and closed by horizontal movement of the shutter plate 540 .
- 23 and 24 are perspective views viewed from different angles of the key assembly and the interlock plate according to the second embodiment of the present invention.
- 25 is an exploded perspective view of a key assembly and an interlock plate according to a second embodiment of the present invention.
- an interlock plate 570 and first and second key assemblies 560 and 565 are provided in order to simultaneously perform a function of preventing the input of the blocking body and limiting the insertion and withdrawal of the blocking body.
- the first key assembly 560 includes a first rotary cylinder 563 , a first keyway 564 , and a first key lever 562 .
- the first rotary tube 563 may be rotated in one direction using a key inserted into the first key groove 564 .
- a first key lever 562 that rotates together with the first rotary tube 563 is coupled to the rear of the first rotary tube 563 .
- the first key lever 562 is bent toward the interlock plate 570 .
- the first key lever 562 may be inserted into the first key lever hole 571a formed in the interlock plate 570 .
- the first key lever 562 rotates and presses a portion of the inner peripheral surface of the first key lever hole 571a. For example, when viewed from the front with reference to FIG. 25 , when the first rotary tube 563 rotates counterclockwise, the first key lever 562 presses the right inner surface of the first key lever hole 571a. to move the interlock plate 570 to the right.
- the second key assembly 565 has the same shape as the first key assembly 560 . That is, the second key assembly 565 includes a second rotary cylinder 568 , a second keyway 569 and a second key lever 567 , and includes a second rotary cylinder 568 and a second keyway 569 . And the second key lever 567 is formed in the same shape as the first rotary cylinder 563, the first keyway 564, and the first key lever 562, respectively.
- the first key assembly 560 and the second key assembly 565 are arranged side by side in the horizontal direction.
- a second key lever hole 571b into which the second key lever 567 can be inserted is provided in the interlock plate 570 .
- the lever holes 571a and 571b are formed along the movement direction (ie, the horizontal direction) of the interlock plate 570 .
- the interlock plate 570 is installed at the rear of the front cover plate 520 to be horizontally movable.
- a return spring hole 575 into which the plate return spring 579 can be inserted is formed in the interlock plate 570 on the upper side of the lever holes 571a and 571b.
- a spring installation part 578 protruding in the movement direction (ie, horizontal direction) of the interlock plate 570 is provided on the inner circumferential surface of the return spring hole 575 .
- a plate return spring 579 is installed in the spring installation part 578 .
- the plate return spring 579 may be a coil spring.
- a return spring support 525 protrudes from the rear surface of the front cover plate 520 toward the interlock plate 570 .
- the return spring support part 525 is inserted into the return spring hole 575 of the interlock plate 570 to support one side of the plate return spring 579 .
- the interlock plate 570 is moved to the right (a direction away from the interlock lever 535 ) with reference to FIG. 20 .
- the plate return spring 579 An elastic force may be stored in 579 .
- the interlock plate 570 is moved to the right by the restoring force of the plate return spring 579 .
- first guide protrusions 522 are formed on the rear surface of the front cover plate 520 along the movement direction of the interlock plate 570 at upper and lower sides of the interlock plate 570 .
- the interlock plate 570 is inserted into the first guide protrusion 522 and is guided by the first guide protrusion 522 to move.
- a second guide protrusion 523 protruding toward the interlock plate 570 is formed on the front cover plate 520 .
- a guide hole 573 is formed at one side of the return spring hole 575 of the interlock plate 570 in the moving direction (ie, the horizontal direction) of the interlock plate 570 .
- the second guide protrusion 523 may be inserted into the guide hole 573 to perform a sliding motion inside the guide hole 573 as the interlock plate 570 moves.
- the interlock plate 570 according to an embodiment of the present invention can be stably guided and moved by the first guide protrusion 522 and the second guide protrusion 523 .
- a stopper 524 protruding toward the interlock plate 570 is provided on the rear surface of the front cover plate 520 .
- the stopper 524 is disposed on the path along which the interlock plate 570 moves.
- a plurality of stoppers 524 may be provided, and may be respectively disposed on the upper right and lower right sides of the interlock plate 570 .
- the stopper 524 functions to prevent the interlock plate 570 from deviating from the set movement path.
- FIG. 26 to 29 are views illustrating the key assembly and the interlock plate according to the second embodiment of the present invention as viewed from the transfer module side to the cover plate side direction. It is a view showing a state in an unlocked state, FIG. 27 is a view showing a case in which the first key assembly is in a locked state and the second key assembly is in an unlocked state, and FIG. 28 is a view showing the first key assembly is in an unlocked state and a second key The assembly is in a locked state, and FIG. 29 is a diagram illustrating a case in which both the first and second key assemblies are in the locked state.
- both the first key assembly 560 and the second key assembly 565 are in an unlocked state. 26, since both the first key lever 562 and the second key lever 567 are moved to the right, the interlock plate 570 is not fixed in position by the key levers 562 and 567. It can be moved to the right by the restoring force. That is, the interlock plate 570 cannot restrict the movement of the interlock lever and the movement of the shutter plate.
- the first key assembly 560 is in the locked state and the second key assembly 565 is in the unlocked state.
- the second key lever 567 is moved to the right with reference to FIG. 27
- the first key lever 562 is moved to the left, so the interlock plate 570 is moved to the right by the first key lever 562 .
- movement is restricted. That is, the interlock plate 570 may be fixed in the locked position to limit the movement of the interlock lever and the movement of the shutter plate.
- the first key assembly 560 is in the unlocked state and the second key assembly 565 is in the locked state.
- the first key lever 562 is moved to the right, but the second key lever 567 is moved to the left, so the interlock plate 570 is moved to the right by the second key lever 567 .
- movement is restricted. That is, the interlock plate 570 may be fixed in the restraining position to limit the movement of the interlock lever and the movement of the interlock plate.
- both the first key assembly 560 and the second key assembly 565 are in a locked state. 29, since both the first key lever 562 and the second key lever 567 are moved to the left, the interlock plate 570 is fixed at the restraining position by the key levers 562 and 567 and moves to the right. can't be That is, the interlock plate 570 may limit the movement of the interlock lever and the movement of the shutter plate.
- the first key assembly 560 and the second key assembly 565 may be used in combination in any suitable application and manner. That is, the first key assembly 560 and the second key assembly 565 may be used independently as well as in parallel use.
- the air circuit breaker according to the embodiment of the present invention restricts the movement of the interlock lever and the shutter plate by placing the interlock plate in the locking position, thereby simultaneously implementing the function of restricting the input operation of the circuit breaker and the withdrawing and withdrawing. have. Furthermore, the air circuit breaker according to an embodiment of the present invention can maintain the state in which the input operation and the withdrawal of the blocking body are restricted by fixing the interlock plate to the locked position using the operating means.
- the air circuit breaker has an interlock plate disposed on the inner surface of the cover plate that covers the outer surface of the transport unit, and an actuating means for moving the interlock plate is positioned on the outer surface, and is operated on the cover plate Since the receiving groove for accommodating the means is formed, the operation means can be easily separated without detaching the cover plate, so that the operation means can be easily maintained, repaired, and replaced, and customer needs can be immediately reflected.
Landscapes
- Switch Cases, Indication, And Locking (AREA)
Abstract
Description
Claims (20)
- 크래들과 상기 크래들에 인입출되는 차단기본체;상기 차단기본체의 오프 버튼에 연결되어 수직 운동하는 인터록 레버;상기 크래들의 하부에 구비되는 이송장치부;를 포함하고,상기 이송장치부에는 수평 이동 가능하게 설치되어, 일측 방향으로 이동한 상태에서는 상기 인터록 레버의 운동을 제한하고, 타측 방향으로 이동한 상태에서는 상기 인터록 레버의 운동을 허용하는 키 인터록 조립체가 구비되는, 기중차단기.
- 제1항에 있어서,상기 이송장치부에는수평 이동 가능하게 설치되어 상기 인터록 레버의 위치에 따라 이동이 제한 또는 허용되는 셔터 플레이트;가 구비되고,상기 키 인터록 조립체가 일측 방향으로 이동한 상태에서는 상기 셔터 플레이트의 운동을 제한하고, 타측 방향으로 이동한 상태에서는 상기 셔터 플레이트의 운동을 허용하는, 기중차단기.
- 제1항 또는 제2항에 있어서,상기 키 인터록 조립체는상기 이송장치부에 결합되는 하우징 플레이트;상기 하우징 플레이트에 수평 이동 가능하게 설치되는 인터록 플레이트; 및상기 인터록 플레이트를 움직이는 키 조립체;를 포함하는, 기중차단기.
- 제3항에 있어서,상기 하우징 플레이트의 전면에는 상기 키 조립체가 설치되는 키홀이 형성되는, 기중차단기.
- 제3항에 있어서,상기 하우징 플레이트의 양 측면에는 상기 인터록 플레이트가 슬라이딩 운동할 수 있도록 관통홀이 각각 형성되는, 기중차단기.
- 제3항에 있어서,상기 인터록 플레이트에는 플레이트 복귀 스프링을 설치할 수 있는 스프링 삽입부가 마련되는, 기중차단기.
- 제3항에 있어서,상기 인터록 플레이트에는 상기 키 조립체의 힘을 받는 접촉부가 돌출 형성되는, 기중차단기.
- 제7항에 있어서,상기 인터록 플레이트에는 상기 인터록 레버의 운동을 제한 또는 허용하는 구속부가 절곡 형성되는, 기중차단기.
- 제8항에 있어서,상기 구속부는 상기 인터록 레버가 상승 하강 운동하는 간격 사이의 높이에 배치되는, 기중차단기.
- 제7항에 있어서,상기 키 조립체는 키에 의해 회전하는 회전통을 포함하고, 상기 키 조립체의 후방부에는 상기 회전통과 함께 회전하는 레버가 구비되는, 기중차단기.
- 제8항에 있어서,상기 레버에는 상기 접촉부에 힘을 가하는 가압부가 절곡형성되는, 기중차단기.
- 제3항에 있어서,상기 키 조립체는 2개가 한쌍으로 마련되고,상기 한쌍의 키 조립체 중 적어도 하나가 특정 위치에 위치하여, 상기 인터록 플레이트를 상기 잠금 위치에 위치 고정시키는, 기중차단기.
- 일측면이 개방된 크래들;상기 크래들의 일측면으로 인입출되는 차단기본체;상기 차단기본체의 버튼에 연결되어 상기 버튼이 눌러진 상태에서는 제 1 위치에 위치하고, 상기 버튼이 눌러지지 않은 상태에서는 제 2 위치에 위치하도록 형성되는 인터록 레버;상기 크래들에 구비되어 상기 차단기본체를 인입출시키는 이송장치부; 및상기 이송장치부의 전방에 이동 가능하게 설치되어, 잠금 위치에 위치한 상태에서는 상기 인터록 레버가 상기 제 1 위치에 위치 고정시키고, 해제 위치에 위치한 상태에서는 상기 인터록 레버가 상기 제 1 위치에서 상기 제 2 위치로 이동할 수 있도록 허용하는 인터록 플레이트를 포함하는, 기중차단기.
- 제 13항에 있어서,상기 이송장치부의 외면을 커버하되 홀이 형성된 커버 플레이트; 및상기 이송장치부와 상기 커버 플레이트 사이에 위치하며 상기 커버 플레이트 홀을 개폐하는 셔터 플레이트를 더 포함하고,상기 인터록 플레이트는 상기 잠금 위치로 이동된 상태에서는 상기 커버 플레이트 홀을 폐쇄하는 위치에 상기 셔터 플레이트를 위치 고정시키고, 상기 해제 위치로 이동된 상태에서는 상기 셔터 플레이트의 상기 커버 플레이트 홀을 개폐하는 운동을 허용하는, 기중차단기.
- 제 14항에 있어서,상기 인터록 플레이트를 이동시키는 작동 수단을 포함하는, 기중차단기.
- 제 15항에 있어서,상기 커버 플레이트의 외측면에는 상기 작동 수단이 수용되는 수용홈이 형성되고, 내측면에는 상기 인터록 플레이트가 배치되는, 기중차단기.
- 제 16항에 있어서,상기 작동 수단은 키 조립체인, 기중차단기.
- 제 17항에 있어서,상기 수용홈의 바닥면에는 상기 키 조립체가 관통할 수 있는 키 조립체 홀이 형성되는, 기중차단기.
- 제 14항에 있어서,상기 커버 플레이트에는 상기 인터록 플레이트의 양 측부에 상기 인터록 플레이트의 운동 방향을 따라 형성되는 제 1 가이드 돌기가 형성되는, 기중차단기.
- 제 14항에 있어서,상기 커버 플레이트에는 상기 인터록 플레이트 측으로 돌출되는 제 2 가이드 돌기가 형성되고,상기 인터록 플레이트에는 상기 인터록 플레이트의 운동 방향을 따라 연장 형성되고 상기 제 2 가이드 돌기가 삽입되는 가이드 홈이 형성되는, 기중차단기.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202280022577.5A CN116997985A (zh) | 2021-03-29 | 2022-03-24 | 空气断路器 |
| US18/284,773 US12424399B2 (en) | 2021-03-29 | 2022-03-24 | Air circuit breaker |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2021-0040461 | 2021-03-29 | ||
| KR1020210040461A KR102553186B1 (ko) | 2021-03-29 | 2021-03-29 | 인터록 장치를 갖는 기중차단기 |
| KR10-2022-0002656 | 2022-01-07 | ||
| KR1020220002656A KR102698247B1 (ko) | 2022-01-07 | 2022-01-07 | 기중차단기 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022211360A1 true WO2022211360A1 (ko) | 2022-10-06 |
Family
ID=83456460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/004102 Ceased WO2022211360A1 (ko) | 2021-03-29 | 2022-03-24 | 기중차단기 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US12424399B2 (ko) |
| WO (1) | WO2022211360A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5115688B2 (ja) * | 2006-10-31 | 2013-01-09 | 富士電機機器制御株式会社 | 引出し形受配電機器の鎖錠装置 |
| KR101486717B1 (ko) * | 2014-11-07 | 2015-01-29 | 주식회사 비츠로테크 | 안전성을 강화한 진공차단기용 인입출 장치 |
| KR101667258B1 (ko) * | 2015-04-30 | 2016-10-19 | 현대중공업 주식회사 | 회로차단기의 인출입 인터록 장치 |
| KR101896080B1 (ko) * | 2017-04-25 | 2018-09-06 | 엘에스산전 주식회사 | 진공차단기의 인터록장치 |
| EP2884606B1 (en) * | 2013-12-16 | 2018-12-05 | LSIS Co., Ltd. | Withdrawable-type circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100854382B1 (ko) | 2007-03-08 | 2008-08-26 | 엘에스산전 주식회사 | 회로차단기 |
| US9576751B1 (en) * | 2012-09-20 | 2017-02-21 | Becker Mining America, Inc. | Motorized vacuum isolation switch |
-
2022
- 2022-03-24 US US18/284,773 patent/US12424399B2/en active Active
- 2022-03-24 WO PCT/KR2022/004102 patent/WO2022211360A1/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5115688B2 (ja) * | 2006-10-31 | 2013-01-09 | 富士電機機器制御株式会社 | 引出し形受配電機器の鎖錠装置 |
| EP2884606B1 (en) * | 2013-12-16 | 2018-12-05 | LSIS Co., Ltd. | Withdrawable-type circuit breaker |
| KR101486717B1 (ko) * | 2014-11-07 | 2015-01-29 | 주식회사 비츠로테크 | 안전성을 강화한 진공차단기용 인입출 장치 |
| KR101667258B1 (ko) * | 2015-04-30 | 2016-10-19 | 현대중공업 주식회사 | 회로차단기의 인출입 인터록 장치 |
| KR101896080B1 (ko) * | 2017-04-25 | 2018-09-06 | 엘에스산전 주식회사 | 진공차단기의 인터록장치 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20240186082A1 (en) | 2024-06-06 |
| US12424399B2 (en) | 2025-09-23 |
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