WO2022211346A1 - 리프트 후크 수납형 진공 차단기 - Google Patents
리프트 후크 수납형 진공 차단기 Download PDFInfo
- Publication number
- WO2022211346A1 WO2022211346A1 PCT/KR2022/003996 KR2022003996W WO2022211346A1 WO 2022211346 A1 WO2022211346 A1 WO 2022211346A1 KR 2022003996 W KR2022003996 W KR 2022003996W WO 2022211346 A1 WO2022211346 A1 WO 2022211346A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit breaker
- vacuum circuit
- lift hook
- lift
- moving holes
- 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
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- 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
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
- H01H2033/6623—Details relating to the encasing or the outside layers of the vacuum switch housings
Definitions
- the present invention relates to a lift hook retractable vacuum circuit breaker, and more particularly, by mounting a retractable lift hook, the user raises the lift hook whenever necessary, and after use, the lift hook is accommodated to protect the user's safety. It relates to a lift hook retractable vacuum circuit breaker, which allows for improved convenience.
- a vacuum circuit breaker is an electrical protector that protects a load device and a line from an accident current when an accident such as a short circuit or a ground fault occurs in an electric circuit using the dielectric strength of a vacuum.
- the vacuum circuit breaker plays a role in power transport control and protection of the power system, and has a large breaking capacity and high reliability and safety. And since the vacuum circuit breaker can be mounted in a small installation space, the range of application from medium voltage to high voltage is relatively wide.
- a vacuum circuit breaker is a machine related to electrical safety and undergoes regular maintenance and repair. That is, although the vacuum circuit breaker performs simple maintenance at the TEST position in the switchboard, it is periodically taken out of the switchboard and checked for abnormalities in the overall appearance and the state of the contacts.
- FIG. 1 is a perspective view showing the external shape of a general vacuum circuit breaker
- Figure 2 is a view showing a position to fasten the lift hook to the vacuum circuit breaker
- Figure 3 is a view showing the lift hook assembly development of the vacuum circuit breaker
- Figure 4 is a vacuum circuit breaker is a view showing that the lift hook is being assembled
- FIG. 5 is a view showing the completion of assembling the lift hook of the vacuum circuit breaker
- FIG. 6 is a perspective view showing the lift hook assembly of the vacuum circuit breaker.
- assembly holes 16 for assembling the plurality of lift hooks 12 and 13 are formed on both sides, respectively.
- the plurality of lift hooks (12, 13) is provided with a docking structure (15) for mounting to the vacuum circuit breaker (10), respectively.
- the vacuum circuit breaker 10 is placed on a flat surface. 3 and 4, mount the lift hooks (12, 13). That is, the docking structures 15 of the lift hooks 12 and 13 in FIG. 3 are respectively inserted into the assembly holes 16 of FIG. 4, lifted into the small grooves of the assembly holes 16 as shown in FIG. 5, and then fixed. It is fixed using the bolt 14 for use. At this time, as shown in FIG. 6 , lift hooks 12 and 13 are respectively mounted on both sides of the vacuum circuit breaker 10 and fixed.
- the conventional vacuum circuit breaker 10 mounts lift hooks 12 and 13 during maintenance and lifts and lowers the vacuum circuit breaker 10 from the switchboard using a crane, which is fixed when the lift hooks 12 and 13 are mounted. Due to this difficulty, the user may keep holding it by hand, and there is an inconvenience in that the customer has to remove the lift hook by hand for each circuit breaker.
- a vacuum circuit breaker for achieving the above object, the circuit breaker body; a plurality of fixing bolts mounted and fixed to the circuit breaker body; and a lift hook in which a plurality of moving holes into which the plurality of fixing bolts are inserted are formed and moved in a sliding manner along the plurality of moving holes.
- the plurality of fixing bolts may be mounted and fixed to both sides of the circuit breaker body, respectively.
- the plurality of fixing bolts may include a head and a body, respectively, and the head may have a size greater than a thickness of the body.
- a thickness of the body portion may be the same as a width of the moving hole or smaller than a width of the moving hole.
- the lift hooks may be mounted on both sides of the circuit breaker body, respectively, and may be mounted in a state in which the plurality of fixing bolts are inserted into the plurality of moving holes.
- the lift hook may include a head and a body.
- the plurality of moving holes may be formed along a longitudinal direction of the body portion.
- the plurality of moving holes may be spaced apart from each other at regular intervals in a state parallel to each other in the body portion.
- a circular hook hole having a predetermined diameter may be formed in the head.
- a plurality of reinforcing bars for reinforcing strength may be formed at both ends of the body portion, respectively, and the plurality of reinforcing bars may be formed at both ends of the body portion in parallel to the plurality of moving holes.
- the head and the body may be formed consecutively on a straight line.
- the plurality of moving holes are formed along the length direction of the body part, and the body part goes down along the plurality of moving holes normally, and when the circuit breaker body moves, the body part moves down the plurality of moving holes. It may be in a state of going up along the movement hole of
- the head portion may be formed in a state bent at a predetermined angle on a straight line along the length direction of the body portion.
- the head is 10? on a vertical line along the longitudinal direction of the body. to 80? It may be formed in a bent state at an angle within.
- a plurality of first reinforcing bars may be formed at both ends of the head, respectively, and a plurality of second reinforcing bars may be formed at both left and right ends of the body, respectively.
- Each of the plurality of first reinforcing bars may have different lengths, and the plurality of second reinforcing bars may each have the same length.
- the breaker when the vacuum circuit breaker is maintained, the breaker can be lifted and lowered without additional attachments when using a crane equipment when withdrawing or retracting the breaker from a switchboard or the like.
- the vacuum circuit breaker since the vacuum circuit breaker is equipped with a lift hook, the user raises the stored lift hook whenever necessary and stores it again after use, so that there is no need to assemble or carry the lift hook separately, User convenience can be improved.
- FIG. 1 is a perspective view showing the external shape of a general vacuum circuit breaker.
- FIG. 2 is a view showing a position to fasten the lift hook to the vacuum circuit breaker.
- Figure 3 shows a developed view of the lift hook assembly of the vacuum circuit breaker.
- FIG. 4 is a view showing that the lift hook of the vacuum circuit breaker is being assembled.
- Figure 5 shows the completed assembly of the lift hook of the vacuum circuit breaker.
- FIG. 6 is a view showing a perspective view after assembling the lift hook of the vacuum circuit breaker.
- FIG. 7 is a perspective view showing the external shape of the vacuum circuit breaker according to the first embodiment of the present invention.
- FIG. 8 is a view showing lift hooks mounted on both sides of the circuit breaker body in the vacuum circuit breaker according to the first embodiment of the present invention.
- FIG 9 is a view showing an example in which the lift hook is mounted by a fixing bolt to the vacuum circuit breaker according to the first embodiment of the present invention.
- FIG 10 is a view showing an example in which the lift hook mounted on the vacuum circuit breaker according to the first embodiment of the present invention moves up and down along the moving hole by the fixing bolt.
- FIG. 11 is a view showing a detailed structure of a lift hook in the vacuum circuit breaker according to the first embodiment of the present invention.
- FIG. 12 is a view showing a detailed structure of a lift hook according to a second embodiment of the present invention.
- an arbitrary component is disposed on the "upper (or lower)" of a component or “top (or below)” of a component means that any component is disposed in contact with the upper surface (or lower surface) of the component. Furthermore, it may mean that other components may be interposed between the component and any component disposed on (or under) the component.
- each component when it is described that a component is “connected”, “coupled” or “connected” to another component, the components may be directly connected or connected to each other, but other components are “interposed” between each component. It is to be understood that “or, each component may be “connected”, “coupled” or “connected” through another component.
- FIG. 7 is a perspective view showing the external shape of the vacuum circuit breaker according to the first embodiment of the present invention
- FIG. 8 is a view showing the lift hooks mounted on both sides of the circuit breaker body in the vacuum circuit breaker according to the first embodiment of the present invention.
- FIG. 9 is a view showing an example in which a lift hook is mounted on a vacuum circuit breaker according to a first embodiment of the present invention by a fixing bolt
- FIG. 10 is a lift mounted on the vacuum circuit breaker according to the first embodiment of the present invention. It is a view showing an example in which the hook moves up and down along the moving hole by the fixing bolt.
- the vacuum circuit breaker 100 includes a circuit breaker body 110 , a plurality of fixing bolts 80 , and a plurality of lift hooks 60 and 70 . do.
- the circuit breaker body 110 receives a vacuum interrupt and includes a main circuit, as is generally known in the art.
- the circuit breaker body 110 includes a push rod assembly and a main shaft for transmitting power to the contact point of the vacuum interrupter, and a mechanism assembly that generates a driving force and is connected to the main shaft to transmit the driving force.
- the push rod assembly is coupled to one end of the movable electrode to supply power to elevate the movable electrode.
- a vacuum interrupter is installed inside the housing.
- the vacuum interrupter includes an insulating container that forms an accommodation space, a fixed electrode fixed to the inner upper portion of the insulating container, a fixed contact provided at an end of the fixed electrode, and a movable electrode installed movably up and down on the inner lower side of the insulating container; , and a movable contact provided at an end of the movable electrode.
- the movable electrode is located on the lower side facing the fixed electrode, and is moved in the vertical direction.
- An arc shield for forming a vacuum is provided inside the insulating container, and the arc shield is installed in a shape surrounding the fixed electrode and the fixed contact, and the movable electrode and the movable contact.
- the movable contact is contacted (closed state) or separated from the fixed contact (blocked state) by the movable electrode. These movable electrodes are raised or lowered by the push rod assembly.
- the push rod assembly is inserted by moving the movable electrode upward, or blocked by moving it downward.
- the push rod assembly is composed of several shafts and springs that transmit the power of the main shaft to the movable electrode.
- the main shaft is connected to the lower end of the push rod assembly.
- the main shaft is connected to the mechanism assembly to transmit power generated from the mechanism assembly to the push rod assembly.
- the rod housing of the push rod assembly is located above the main shaft, and the rod housing is moved up and down by rotation of the main shaft.
- the plurality of fixing bolts 80 are mounted and fixed on both upper sides of the circuit breaker body 110 to accommodate the plurality of lift hooks 60 and 70 in the circuit breaker body 110 . That is, the plurality of fixing bolts 80 are inserted into the upper both sides of the circuit breaker body 110 in a screw-coupled form and mounted and fixed, as shown in FIG. 8 .
- a plurality of lift hooks (60, 70) is formed with a plurality of moving holes (72a, 72b) into which a plurality of fixing bolts (80) are inserted, and a plurality of fixing bolts ( 80) is moved up and down in a sliding manner as shown in FIG. 10 along the plurality of moving holes 72a and 72b in the inserted state.
- the circuit breaker body 110 is lifted and moved from the switchboard in a state lowered along the (72a, 72b)
- the user slides it upward along the plurality of moving holes (72a, 72b) in a sliding manner.
- the plurality of fixing bolts 80 may be mounted and fixed to both sides of the circuit breaker body 110 , respectively, and may be respectively mounted and fixed to both upper sides of the circuit breaker body 110 .
- the plurality of fixing bolts 80 may include a head and a body, respectively.
- the head may have a larger size than the thickness of the body.
- the thickness of the body portion may be the same as the width of the moving holes 72a and 72b , or may be smaller than the width of the moving holes 72a and 72b .
- FIG. 11 is a view showing a detailed structure of a lift hook in the vacuum circuit breaker according to the first embodiment of the present invention.
- one lift hook 70 may include a head 71 and a body 72 .
- One lift hook 70 is mounted on both sides of the circuit breaker body 110, respectively, and may be mounted in a state in which a plurality of fixing bolts 80 are inserted into the plurality of moving holes 72a and 72b.
- the plurality of moving holes 72a and 72b may be formed along the longitudinal direction of the body portion 72 .
- the plurality of moving holes 72a and 72b may be spaced apart from each other at regular intervals in the body portion 72 .
- the plurality of moving holes 72a and 72b may be spaced apart from each other at regular intervals in a state parallel to each other in the body portion 72 .
- a circular hook hole 71a having a predetermined diameter may be formed in the head 71 .
- the outer shape of the head 71 may be formed in an arc shape along the circular shape of the hook hole 71a.
- a plurality of reinforcing bars 73 for reinforcing strength may be formed at both ends of the body portion 72 , respectively.
- the plurality of reinforcing bars 73 may be respectively formed at both ends of the body portion 72 in parallel to the plurality of moving holes 72a and 72b.
- the plurality of reinforcing bars 73 are formed at both ends of the outer body portion 72 of the plurality of moving holes 72a and 72b without overlapping the plurality of moving holes 72a and 72b, respectively.
- the head 71 and the body 72 may be formed consecutively on a straight line.
- a plurality of reinforcing bars 73 are formed at both ends of the left and right sides of the body portion 72, and the head portion 71 and the body portion 72 are formed consecutively in a straight line, and a plurality of reinforcing bars (73) may be respectively formed on the left and right ends of the body portion 72 formed in a straight line with the head portion 71, respectively.
- the plurality of moving holes 72a and 72b may have the same length, have the same shape, and have the same width.
- the plurality of moving holes 72a and 72b may be formed in a state of having the same length and the same width at a predetermined position of the body portion 72 and having a predetermined interval therebetween.
- the plurality of moving holes 72a and 72b are formed along the longitudinal direction of the body portion 72, and in normal use, the body portion 72 has a plurality of movement holes 72a and 72b. is downward along the , and when the circuit breaker main body 110 is moved, the body portion 72 may be in a state of rising upward along the plurality of moving holes 72a and 72b.
- the plurality of reinforcing bars 73 may be formed while both ends of the body portion 72 are respectively folded inward or outwardly, respectively.
- the plurality of reinforcing bars 73 may be formed by adhering a separate rigid material to both ends of the body portion 72 .
- the material of the plurality of reinforcing bars 73 and the body portion 72 may be the same as each other.
- the materials of the plurality of reinforcing bars 73 and the body portion 72 may be different from each other.
- the plurality of moving holes 72a and 72b may be respectively formed by opening the body portion 72 in two elongated oval shapes.
- FIG. 12 is a view showing a detailed structure of a lift hook according to a second embodiment of the present invention.
- a plurality of moving holes 92a and 92b into which a plurality of fixing bolts 80 are inserted are formed in the body portion 92 in plurality. and a hook hole 91a for lifting is formed in the head 91 , and the head 91 may be formed to be bent at a predetermined angle on a straight line along the longitudinal direction of the body 92 .
- the vacuum circuit breaker according to the second embodiment of the present invention includes a circuit breaker body; A plurality of fixing bolts 80 fixed to the circuit breaker body; And a plurality of moving holes (92a, 92b) into which the plurality of fixing bolts 80 are inserted are formed in the body portion 92 in plurality, and a hook hole 91a for lifting is formed in the head portion 91, the head
- the portion 91 includes a lift hook 90 formed in a state of being bent at a predetermined angle on a straight line along the longitudinal direction of the body portion 92 .
- the lift hook 90 according to the second embodiment of the present invention has a structure in which the head 91 and the body 92 are not separated from each other, and the head 91 is continuously formed from the body 92 .
- the head 91 is 10 ? to 80? It may be formed in a bent state at an angle within.
- the head 91 is 20° on a vertical line along the longitudinal direction of the body 92 . to 70? It may be formed in a bent state at an angle within.
- a plurality of first reinforcing bars 93a and 93b are respectively formed at both left and right ends of the head 91
- a plurality of first reinforcing bars 93a and 93b are formed at both left and right ends of the body 92 .
- of the second reinforcing bars 93c and 93d may be formed, respectively.
- the plurality of first reinforcing bars 93a and 93b may have different lengths, and the plurality of second reinforcing bars 93c and 93d may have the same length, respectively.
- a plurality of fixing bolts 80 respectively mounted and fixed on both upper sides of the circuit breaker main body 110 are movable holes 92a and 92b of the body part 92 . ) can be moved in the vertical direction along the plurality of moving holes (92a, 92b) in the inserted state.
- the plurality of fixing bolts 80 may include a head and a body, respectively, and the head may have a larger size than the thickness of the body.
- the thickness of the body portion may be the same as the width of the plurality of moving holes (92a, 92b), or may be smaller than the width of the plurality of moving holes (92a, 92b) in order to move freely.
- the lift hook 90 according to the second embodiment of the present invention is mounted on both sides of the circuit breaker body 110, respectively, and a plurality of fixing bolts 80 are inserted into the plurality of moving holes 92a and 92b. can be installed with
- the plurality of moving holes 92a and 92b may be formed along the longitudinal direction of the body 91 .
- the plurality of moving holes 92a and 92b may be spaced apart from each other at regular intervals while being parallel to each other in the body portion 91 .
- the hook hole 91a formed in the head 91 is formed by opening in a circular shape in the head 91 , and is formed outside the head 91 .
- the shape may be formed in an arc shape along the circular shape of the hook hole 91a.
- the lift hook 90 according to the second embodiment of the present invention is to lift the vacuum circuit breaker 100 from the switchboard
- the plurality of fixing bolts 80 mounted on the circuit breaker body 110 is It rises upward along the plurality of moving holes 92a and 92b, and the crane's hook ring is hung on the hook hole 91a formed in the head 91, so that it is easy to do without installing a separate lift hook. It will be possible to lift the vacuum circuit breaker 100 from the switchboard.
- a hook-retained vacuum circuit breaker can be realized.
- the present invention can be applied to an electrical protector that protects a load device and a line from a fault current when an accident such as a short circuit or a ground fault occurs in an electrical circuit using the dielectric strength of a vacuum.
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Abstract
Description
Claims (16)
- 차단기 본체;상기 차단기 본체에 장착 고정된 복수의 고정용 볼트; 및상기 복수의 고정용 볼트가 삽입되는 복수의 이동홀이 형성되고, 상기 복수의 이동홀을 따라 슬라이딩 방식으로 이동되는 리프트 후크;를 포함하는 진공 차단기.
- 제 1 항에 있어서,상기 복수의 고정용 볼트는, 상기 차단기 본체의 양측에 각각 장착 고정된, 진공 차단기.
- 제 1 항에 있어서,상기 복수의 고정용 볼트는, 각각 머리부와 몸체부를 포함하고, 상기 머리부는 상기 몸체부의 두께보다 더 큰 크기를 갖는, 진공 차단기.
- 제 3 항에 있어서,상기 복수의 고정용 볼트에서, 상기 몸체부의 두께는 상기 이동 홀의 폭과 동일하거나, 상기 이동홀의 폭보다 더 작은, 진공 차단기.
- 제 1 항에 있어서,상기 리프트 후크는, 상기 차단기 본체의 양측에 각각 장착되되, 상기 복수의 이동홀에 상기 복수의 고정용 볼트가 삽입된 상태로 장착된, 진공 차단기.
- 제 1 항에 있어서,상기 리프트 후크는, 머리부와 몸체부를 포함하는, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서 상기 복수의 이동홀은 상기 몸체부의 길이 방향을 따라 형성된, 진공 차단기.
- 제 6 항에 있어서,상기 복수의 이동홀은 상기 몸체부에서 서로 평행한 상태로 일정 간격으로 이격된, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서 상기 머리부에는 일정 크기의 지름을 갖는 원형의 후크 홀이 형성된, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서 상기 몸체부에는 강도를 보강하기 위한 복수의 보강대가 양단에 각각 형성되고, 상기 복수의 보강대는 상기 복수의 이동 홀과 평행하게 상기 몸체부의 양단에 각각 형성된, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서 상기 머리부와 상기 몸체부는 일직선 상에 연이어 형성된, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서 상기 복수의 이동홀은 상기 몸체부의 길이 방향을 따라 형성되고,평상 시에는 상기 몸체부가 상기 복수의 이동홀을 따라 아래로 내려가 있고, 상기 차단기 본체의 이동 시에는 상기 몸체부가 상기 복수의 이동홀을 따라 위로 올라가는, 진공 차단기.
- 제 6 항에 있어서,상기 리프트 후크에서, 상기 머리부는 상기 몸체부의 길이 방향에 따른 일직선 상에서 일정 각도로 휘어진 상태로 형성된, 진공 차단기.
- 제 13 항에 있어서,상기 머리부는 상기 몸체부의 길이 방향에 따른 수직선 상에서 10? 내지 80? 이내의 각도로 휘어진 상태로 형성된, 진공 차단기.
- 제 13 항에 있어서,상기 리프트 후크는, 복수의 제1 보강대가 상기 머리부의 좌우 양단에 각각 형성되고, 복수의 제2 보강대가 상기 몸체부의 좌우 양단에 각각 형성된, 진공 차단기.
- 제 15 항에 있어서,상기 복수의 제1 보강대는 각각 서로 다른 길이를 가지고,상기 복수의 제2 보강대는 각각 서로 동일한 길이를 갖는, 진공 차단기.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/284,992 US12580141B2 (en) | 2021-03-30 | 2022-03-22 | Vacuum circuit breaker in which lift hooks are accommodated |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020210041015A KR102636475B1 (ko) | 2021-03-30 | 2021-03-30 | 리프트 후크 수납형 진공 차단기 |
| KR10-2021-0041015 | 2021-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022211346A1 true WO2022211346A1 (ko) | 2022-10-06 |
Family
ID=83459360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2022/003996 Ceased WO2022211346A1 (ko) | 2021-03-30 | 2022-03-22 | 리프트 후크 수납형 진공 차단기 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US12580141B2 (ko) |
| KR (1) | KR102636475B1 (ko) |
| WO (1) | WO2022211346A1 (ko) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130100596A (ko) * | 2012-03-02 | 2013-09-11 | 엘에스산전 주식회사 | 회로차단기 |
| KR200485086Y1 (ko) * | 2016-01-27 | 2017-11-27 | 엘에스산전 주식회사 | 전자 접촉기 또는 차단기의 이동을 위한 이동장치 |
| KR20190077746A (ko) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 크레인 후크 |
| US10790641B1 (en) * | 2019-08-27 | 2020-09-29 | Moxa Inc. | Clamping mechanism for din rail |
| KR102203594B1 (ko) * | 2019-09-05 | 2021-01-15 | 주식회사 팬스타엔터프라이즈 | 이동제어용 리미트 스위치의 파손방지장치 및 이를 구비한 리프트 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124488B2 (en) * | 2004-01-16 | 2006-10-24 | Abb Technology Ag | Retrofit breaker adapter system and method |
| US7544908B2 (en) * | 2007-06-26 | 2009-06-09 | Abb Technology Ag | Circuit breaker cradle with an interlock system and a method of using the same |
| US8247716B2 (en) * | 2010-05-11 | 2012-08-21 | Eaton Corporation | Electrical switching apparatus, and levering assembly and position indicator assembly therefor |
| US8654513B2 (en) * | 2011-02-09 | 2014-02-18 | Abb Inc. | Remotely-operated switchgear racking device and a mounting method for the same |
| US9673595B2 (en) * | 2013-10-31 | 2017-06-06 | Eaton Corporation | Withdrawable contactor trucks with integral motorized levering-in, related switchgear, kits and methods |
| US9490084B2 (en) * | 2014-11-13 | 2016-11-08 | Eaton Corporation | Visible disconnect switch interlock assembly |
| US10306796B2 (en) * | 2017-11-01 | 2019-05-28 | Dell Products L.P. | Information handling system rail clip automatic clamping |
-
2021
- 2021-03-30 KR KR1020210041015A patent/KR102636475B1/ko active Active
-
2022
- 2022-03-22 WO PCT/KR2022/003996 patent/WO2022211346A1/ko not_active Ceased
- 2022-03-22 US US18/284,992 patent/US12580141B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130100596A (ko) * | 2012-03-02 | 2013-09-11 | 엘에스산전 주식회사 | 회로차단기 |
| KR200485086Y1 (ko) * | 2016-01-27 | 2017-11-27 | 엘에스산전 주식회사 | 전자 접촉기 또는 차단기의 이동을 위한 이동장치 |
| KR20190077746A (ko) * | 2017-12-26 | 2019-07-04 | 주식회사 포스코 | 크레인 후크 |
| US10790641B1 (en) * | 2019-08-27 | 2020-09-29 | Moxa Inc. | Clamping mechanism for din rail |
| KR102203594B1 (ko) * | 2019-09-05 | 2021-01-15 | 주식회사 팬스타엔터프라이즈 | 이동제어용 리미트 스위치의 파손방지장치 및 이를 구비한 리프트 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20220135404A (ko) | 2022-10-07 |
| US20240170241A1 (en) | 2024-05-23 |
| KR102636475B1 (ko) | 2024-02-13 |
| US12580141B2 (en) | 2026-03-17 |
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