WO2022211234A1 - Vacuum circuit breaker - Google Patents

Vacuum circuit breaker Download PDF

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Publication number
WO2022211234A1
WO2022211234A1 PCT/KR2022/000845 KR2022000845W WO2022211234A1 WO 2022211234 A1 WO2022211234 A1 WO 2022211234A1 KR 2022000845 W KR2022000845 W KR 2022000845W WO 2022211234 A1 WO2022211234 A1 WO 2022211234A1
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WO
WIPO (PCT)
Prior art keywords
tulip
contact
finger
terminal
temperature
Prior art date
Application number
PCT/KR2022/000845
Other languages
French (fr)
Korean (ko)
Inventor
이현욱
Original Assignee
엘에스일렉트릭 (주)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 엘에스일렉트릭 (주) filed Critical 엘에스일렉트릭 (주)
Publication of WO2022211234A1 publication Critical patent/WO2022211234A1/en

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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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6643—Contacts; Arc-extinguishing means, e.g. arcing rings having disc-shaped contacts subdivided in petal-like segments, e.g. by helical grooves
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/06—Temperature sensitive

Definitions

  • the present invention relates to a vacuum circuit breaker, and more particularly, to a vacuum circuit breaker capable of measuring and monitoring the temperature of a tulip contactor.
  • a vacuum circuit breaker is a device provided to block a circuit when an abnormal current such as an overcurrent, a short circuit, or a ground fault occurs in an extra-high voltage or high voltage distribution line.
  • the vacuum circuit breaker can be operated in closed state or tripped state. In the closed state, the vacuum circuit breaker is energized with an external power source or load. In the trip state, the vacuum circuit breaker is disconnected from external power or load.
  • a vacuum interrupter includes various components. As the vibration damper is activated, the component is activated and heat is generated. In addition, even when an abnormal current is applied from an external power source, excessive heat may be generated in each component of the circuit breaker.
  • the vacuum circuit breaker is generally provided with a temperature sensor for measuring internal or external temperature.
  • the calorific value of a vacuum circuit breaker is different for each part. In this case, damage due to heat is highly likely to occur in a portion having a high calorific value. However, the conventional vacuum circuit breaker has difficulty in sensing the temperature at a specific point.
  • the development of a vacuum circuit breaker capable of measuring and monitoring the temperature of a specific point of the vacuum circuit breaker in real time may be considered.
  • the development of a vacuum circuit breaker capable of measuring and monitoring the temperature of the tulip contactor in real time may be considered.
  • Korean Patent Publication No. 10-1773306 discloses a wireless temperature sensing device for a switchboard. Specifically, a wireless temperature sensing device installed in any one of a tulip contact, a main bus, or a cable terminal of a circuit breaker provided inside a switchboard is disclosed.
  • this type of temperature sensing device is attached to the housing part of the tulip contact. That is, the temperature sensing device is not directly attached to the tulip contact. Accordingly, temperature measurement accuracy may be reduced.
  • Ciba 208296994 discloses a temperature sensor of a switchboard. Specifically, a temperature sensor positioned inside a low-voltage switchgear is disclosed.
  • this type of temperature sensor is also attached to the outside of the circuit breaker and not directly attached to the contactor. Therefore, the accuracy of the temperature sensor is insufficient, and there is a possibility that excessive temperature measurement cost and time are required.
  • Patent Document 1 Korean Patent Publication No. 10-1773306 (2017.08.31.)
  • Patent Document 2 Chinese Patent Publication No. 208296994 (2018.12.28.)
  • One object of the present invention is to provide a vacuum circuit breaker capable of directly measuring the temperature of the contactor of each phase of the tulip.
  • Another object of the present invention is to provide a vacuum circuit breaker capable of preventing damage to the temperature sensor due to the flow of the tulip contactor.
  • Another object of the present invention is to provide a vacuum circuit breaker in which the cost and time required for temperature sensing can be further reduced.
  • Another object of the present invention is to provide a vacuum circuit breaker equipped with a plurality of temperature sensing sensors.
  • Another object of the present invention is to provide a vacuum circuit breaker in which the temperature sensor can be insulated without being energized from the outside of the energized pole.
  • a vacuum circuit breaker includes: a plurality of tulip fingers connected to an external power source or a load to be energized and arranged along the circumferential direction of a virtual circle; and a temperature sensor disposed adjacent to the tulip finger, wherein the temperature sensor has a sensing contact point that is in contact with a specific point of the tulip finger to measure the temperature of the specific point is formed on one surface, a sensor body in which the input unit is accommodated; and a coupling ring coupled to one surface of the sensor body facing the tulip finger and having a tulip insertion hole surrounding a portion of the tulip finger.
  • the tulip finger is formed to protrude toward the terminal from one surface facing the terminal of the external power source or load, and includes a terminal contact portion in contact with the terminal, and the terminal contact portion is coupled through the tulip insertion hole can be
  • the tulip insertion hole may be formed in a shape corresponding to the terminal contact portion.
  • the tulip insertion hole may be formed so that an inner circumference thereof is the same as an outer circumference of the terminal contact portion.
  • the bonding ring may be formed of a metal material.
  • the temperature sensor may include a power supply that supplies a power source and is built into the sensor body.
  • the power supply unit may be electrically connected to the coupling ring, and may generate electric energy by receiving a magnetic field generated from the tulip finger through the coupling ring.
  • a battery connected to the power supply unit may be energized inside the sensor body.
  • a plurality of temperature detection sensors may be provided, and the plurality of temperature detection sensors may be spaced apart from each other to measure temperatures at different points.
  • the input unit may include: a data processing unit that collects temperature data from the sensing contact, and the temperature sensor receives and organizes the temperature data from the input unit; and a communication unit for transmitting the data organized by the data processing unit to the outside.
  • a temperature sensor is directly attached to the tulip contactor. Specifically, a temperature sensor is directly attached to the tulip contactor of each phase.
  • the temperature of the tulip contact of each phase can be directly measured. At this time, different heat sources of the vacuum circuit breaker overlap and are not measured.
  • the accuracy of temperature data can be further improved. Furthermore, the maintainability of the vacuum circuit breaker can be increased.
  • the temperature of the tulip contactor of each phase can be easily measured and monitored in real time.
  • the temperature sensor is mechanically fixed to one tulip finger. Accordingly, when the tulip finger is moved, the temperature sensor may be moved together with the tulip finger. That is, the temperature sensor is not greatly affected by the flow of the tulip contact.
  • the temperature sensor can flexibly respond to the flow of the tulip contact. Accordingly, damage to the temperature sensor due to the flow of the tulip contact can be prevented.
  • the temperature sensor measures and monitors the temperature at a specific point of the tulip contact. Accordingly, a separate temperature measurement for the entire vacuum circuit breaker is not required.
  • the cost and time for temperature sensing of the vacuum circuit breaker can be further reduced. Furthermore, an additional device for storing the image data of the thermal imaging camera is also not required.
  • a plurality of temperature detection sensors may be provided in one vacuum circuit breaker. That is, temperatures for a plurality of specific points can be simultaneously measured.
  • the user can collect and check the temperature for the tulip contactor in each phase. Accordingly, work convenience for measuring and monitoring the temperature of the vacuum circuit breaker can be further improved.
  • the temperature sensor is located inside the housing portion of the energized pole. Specifically, the temperature sensor is positioned adjacent to the tulip finger of the energized pole.
  • the temperature sensor may be insulated without being energized from the outside of the energized pole. Accordingly, it is possible to prevent an abnormal current such as an overcurrent from being generated in the temperature sensor. Furthermore, damage to the temperature sensing sensor can be prevented.
  • FIG. 1 is a perspective view showing a vacuum circuit breaker according to an embodiment of the present invention.
  • FIG. 2 is a perspective view illustrating an energized pole provided in the vacuum circuit breaker of FIG. 1 .
  • Fig. 3 is a side view showing the energized pole of Fig. 2;
  • FIG. 4 is a perspective view illustrating a plate portion, an energized pole terminal, a coupling member, and a tulip contactor provided in the energized pole of FIG. 2 .
  • Fig. 5 is a side view showing the plate portion, the energized pole terminal, the coupling member and the tulip contact of Fig. 4;
  • FIG. 6 is a plan view showing the plate portion, the energized pole terminal, the coupling member, and the tulip contact of FIG. 4 .
  • FIG. 7 is a perspective view illustrating a tulip finger and a temperature sensor provided in the vacuum circuit breaker of FIG. 1 .
  • FIG. 8 is a side view illustrating the tulip finger and temperature sensor of FIG. 7 .
  • FIG. 9 is a plan view illustrating the tulip finger and the temperature sensor of FIG. 7 .
  • FIG. 10 is a perspective view illustrating a tulip contact provided in the energized pole of FIG. 2 .
  • FIG. 11 is a side view illustrating the tulip contactor of FIG. 10 .
  • FIG. 12 is a side cross-sectional view illustrating the tulip contactor of FIG. 10 .
  • Fig. 13 is a front view showing the tulip contactor of Fig. 10;
  • FIG. 14 is an exploded perspective view illustrating the tulip contactor of FIG. 10 .
  • FIG. 15 is a perspective view illustrating a tulip finger provided in the tulip contactor of FIG. 10 .
  • Fig. 16 is a side view showing the tulip finger of Fig. 15;
  • FIG. 17 is a perspective view illustrating a temperature sensor provided in the vacuum circuit breaker of FIG. 1 .
  • FIG. 18 is a side view illustrating the temperature sensor of FIG. 17 ;
  • FIG. 19 is a plan view illustrating the temperature sensor of FIG. 17 .
  • FIGS. 1 to 16 a vacuum circuit breaker 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 16 .
  • the vacuum circuit breaker 1 may allow or block an energized state between an external power source and a load. To this end, the vacuum circuit breaker 1 is electrically connected to an external power source and load. In other words, an external power source and a load may be electrically connected by the vacuum circuit breaker 1 .
  • the vacuum circuit breaker 1 includes a frame portion 10 , a mechanism assembly 20 , an energized pole 60 and a temperature sensor 70 .
  • the frame part 10 forms the outer shape of the vacuum circuit breaker 1 .
  • the frame part 10 is a part to which the vacuum circuit breaker 1 is exposed to the outside.
  • a space is formed inside the frame part 10 .
  • Various components for operating the vacuum circuit breaker 1 may be accommodated in the space.
  • the various components may be surrounded by the frame unit 10 and not be exposed to the outside.
  • the mechanism assembly 20, the energized pole 60 and the temperature sensor 70 are accommodated in the inner space of the frame part 10 .
  • the frame part 10 includes an upper frame 110 and a side frame 120 .
  • the upper frame 110 is disposed on one side of the frame unit 10 , in the illustrated embodiment, on the upper side.
  • the upper frame 110 is disposed to cover the space formed inside the frame part 10 from the upper side.
  • the upper frame 110 is formed in a rectangular plate shape in which an extension length in the front-rear direction is longer than an extension length in the left-right direction.
  • the corners of the upper frame 110 are continuous with the side frame 120 , respectively.
  • a plurality of upper frames 110 may be provided. At this time, the plurality of upper frames 110 are spaced apart from each other.
  • the side frame 120 forms the side, in the illustrated embodiment, the left, right, front side and rear side of the frame portion 10 .
  • the side frame 120 covers the space formed inside the frame part 10 from the left side, the right side, the front side, and the rear side.
  • the side frame 120 is formed in the shape of a column extending in the vertical direction.
  • One edge of the side frame 120 in the extending direction is continuous with the upper frame 110 .
  • the upper edge of the side frame 120 is continuous with the upper frame 110 .
  • a plurality of side frames 120 may be provided. At this time, the plurality of side frames 120 are spaced apart from each other. In the illustrated embodiment, the three side frames 120 are arranged side by side along the left and right direction.
  • an energized pole insert that can accommodate the energized pole (60).
  • the energized pole insert that can accommodate the energized pole 60 is formed on the outer peripheral surface of the front side of the side frame 120 .
  • the energized pole insertion hole accommodates the energized pole 60 so that the energized pole 60 communicates with the external and internal spaces of the side frame 120 .
  • a space for accommodating the energized pole 60 is formed inside the energized pole insert. That is, the energized pole 60 is coupled through the energized pole insertion hole.
  • the energized pole insertion hole extends in the same direction as the extension direction of the energized pole 60 .
  • the energized pole insert is extended in the front-rear direction.
  • the energized pole insert is disposed to surround the energized pole 60 . That is, the energized pole 60 is surrounded by the energized pole insertion port.
  • a plurality of energized pole inserts may be provided.
  • the number of energized pole inserts is the same as the number of energized poles 60 coupled to the side frame 120 .
  • the mechanism assembly 20 controls the vacuum circuit breaker 1 to operate in the closed state or tripped state.
  • the mechanism assembly 20 is rotated to form a energized state between the vacuum circuit breaker 1 and an external power source or load, or cut off energization.
  • the mechanism assembly 20 is accommodated in the space formed inside the frame portion 10 .
  • the mechanism assembly 20 may be rotatably actuated in the space.
  • the mechanism assembly 20 is connected to the link portion and the spring portion.
  • the mechanism assembly 20 may be rotationally operated together with any one or more of the link part and the spring part.
  • the link portion is rotated as the mechanism assembly 20 is actuated, thereby operating the vacuum circuit breaker 1 in the closed state or the tripped state.
  • the link portion is connected to the mechanism assembly 20 .
  • the linkage may rotate with the components of the mechanism assembly 20 as they rotate.
  • the link part is rotatably coupled to the frame part 10 .
  • the link unit converts a horizontal linear motion of the main shaft connected to the mechanism assembly 20 into a vertical linear motion with respect to the ground.
  • One end of the link unit is connected to an end of the main shaft.
  • the other end of the link portion is coupled to the spring portion.
  • the spring part moves linearly as the link part rotates to contact and separate the VI fixed contact and VI movable contact.
  • the spring part is connected to the link part.
  • the spring part may move in a straight line as the link part rotates.
  • the spring part is connected to the VI.
  • the spring portion is connected to the VI movable contact. Accordingly, as the spring portion is moved, the VI movable contact is moved together.
  • a vacuum interrupter (VI) is accommodated in the space formed inside the frame part 10 to allow or block the flow of current. Specifically, VI allows the passing of current when the VI fixed contact and the VI movable contact are in contact, or the VI fixed contact and the VI movable contact are spaced apart to cut off the current.
  • VI is coupled to the spring portion.
  • the components of VI can be contacted or separated as the spring part is moved.
  • VI includes VI fixed contact and VI movable contact.
  • the VI fixed contact is connected to an external power source or load so that it can conduct electricity.
  • the vacuum circuit breaker 1 can be electrically connected to an external power source or load.
  • the VI fixed contact is accommodated inside the side frame 120 . That is, the VI fixed contact is surrounded by the side frame 120 .
  • the VI fixed contact is in contact with or spaced apart from the VI movable contact, so that it is possible to apply or cut off the conduction between the inside and the outside of the vacuum circuit breaker (1).
  • the VI fixed contact does not move in the inner space of the frame portion 10 . Accordingly, the contact and separation of the VI fixed contact and the VI movable contact is achieved by the movement of the VI movable contact.
  • VI movable contact is connected to an external power source or load so that it can conduct electricity. Also, the VI movable contact is energably connected to or disconnected from the VI fixed contact.
  • the VI movable contact is accommodated inside the side frame 120 . That is, the VI movable contact is surrounded by the side frame 120 .
  • the VI movable contact is linearly moved and can be in contact with or separated from the VI fixed contact. Specifically, the VI movable contact may be moved in a direction toward the VI stationary contact or away from the VI stationary contact.
  • the VI movable contact When the VI movable contact is moved in the direction toward the VI fixed contact, the VI movable contact and the VI fixed contact are in contact. At this time, current may be applied between the external power source and the load.
  • the energizing pole 60 energizes VI and an external power source or load. To this end, the energizing pole 60 is energably connected to the VI and an external power source or load.
  • the energized pole 60 is through-coupled to one side of the side frame 120 . Specifically, the energized pole 60 is coupled through the energized pole insertion hole of the side frame 120 .
  • a plurality of energized poles 60 may be provided. In the illustrated embodiment, three pairs of energized poles 60 are arranged side by side in the left and right direction.
  • the number of energizing poles 60 may be determined according to the type of power system in which the vacuum circuit breaker 1 of the present invention is provided.
  • the vacuum circuit breaker 1 is provided in a power system using a three-phase circuit of R-phase, S-phase and T-phase. Accordingly, three pairs of energizing poles 60 are also provided in accordance with the three-phase circuit.
  • the energized pole 60 includes a housing portion 610 , a plate portion 620 , a energized pole terminal 630 , a coupling member 640 , and a tulip contact 650 .
  • the housing part 610 forms the exterior of the energized pole 60 .
  • the housing portion 610 is a portion to which the energized pole 60 is exposed to the outside.
  • the housing part 610 is formed in a cylindrical shape extending in one direction. In the illustrated embodiment, the housing part 610 is formed in a cylindrical shape extending in the front-rear direction.
  • a hollow is formed inside the housing part 610 .
  • a portion of the energized pole terminal 630 and the tulip contact 650 may be accommodated in the hollow. That is, a portion of the energized pole terminal 630 and the tulip contactor 650 is surrounded by the housing unit 610 .
  • the housing 610 may be formed of an insulating material.
  • the housing unit 610 may be formed of a synthetic resin material. Accordingly, it can be prevented that the inside and outside of the energized pole 60 is arbitrarily energized.
  • the plate portion 620 is a portion in which the energized pole 60 is directly coupled to the VI. Specifically, the plate part 620 is electrically coupled to the VI.
  • the plate part 620 is formed in a plate shape.
  • the plate part 620 is formed in a rectangular plate shape in which an extension length in the front-rear direction is longer than an extension length in the left-right direction.
  • the plate part 620 may be formed of a conductive material.
  • the plate part 620 may be formed of copper (Cu), silver (Ag), or the like.
  • the plate portion 620 is formed with a coupling hole.
  • the coupling hole is a space through which a member for coupling between the plate part 620 and VI is coupled.
  • a plurality of coupling holes may be provided.
  • the energized pole terminal 630 is coupled. In the illustrated embodiment, the energized pole terminal 630 is coupled to one end of the front side of the plate portion 620 .
  • the energized terminal 630 energizes the plate portion 620 and the tulip contact 650 .
  • the energizing terminal 630 is energably coupled to the plate portion 620 and the tulip contact 650, respectively.
  • the energized pole terminal 630 is formed in a plate shape extending in one direction. In the illustrated embodiment, the energized pole terminal 630 is formed in a plate shape extending in the front-rear direction. However, the energized pole terminal 630 is not limited to the illustrated shape, and may be formed in various shapes.
  • the energized terminal 630 is accommodated in the space formed inside the housing portion (610). That is, the energized pole terminal 630 is surrounded by the housing portion (610).
  • One end of the energized pole terminal 630 is coupled to the tulip contactor (650).
  • one end of the front side of the energized pole terminal 630 is coupled to the tulip contact (650).
  • the energized pole terminal 630 is coupled to the tulip contact 650 by a coupling member 640 .
  • the coupling member 640 is disposed between the energized pole terminal 630 and the tulip contactor 650 and is coupled to the energized pole terminal 630 and the tulip contactor 650 , respectively. Accordingly, the coupling of the energized pole terminal 630 and the tulip contactor 650 may be more robust.
  • the coupling member 640 is not limited to the illustrated shape, and may be formed in various shapes. In one embodiment, the coupling member 640 may be coupled to the energized pole terminal 630 and the tulip contact 650 in a bolt-nut coupling manner.
  • the coupling member 640 may be formed of a high-rigidity material.
  • the coupling member 640 may be formed of a metal material.
  • the tulip contactor 650 is a part in which the vacuum circuit breaker 1 is in direct contact with the terminal of an external power source or load.
  • the tulip contactor 650 is electrically connected to a terminal of an external power source or load. Accordingly, current may pass through the tulip contactor 650 .
  • a current is passed through the tulip contactor 650 , a magnetic field is generated in the tulip contactor 650 .
  • the generated magnetic field is transmitted to the temperature sensor 70 through a coupling ring 720 to be described later. A detailed description thereof will be provided later.
  • the tulip contactor 650 includes a retaining ring 651 , a contactor plate 652 , a toothed ring 653 , and a tulip finger 654 .
  • the fixing ring 651 further increases the contact force between the tulip contactor 650 and the terminal of an external power source or load.
  • the fixing ring 651 is positioned to surround the outer circumferential surface of the tulip finger 654 . Specifically, the fixing ring 651 is located in the fixing ring fastening groove 654a of the tulip finger 654 .
  • the fixing ring 651 is formed in a ring shape.
  • the center of the fixing ring 651 and the center of the tulip finger 654 are formed to be the same.
  • Retaining ring 651 radially outwardly supports tulip finger 654 and prevents any disengagement of tulip finger 654 .
  • the diameter of the retaining ring 651 is formed to be smaller than the outer diameter of the tulip finger 654 . Accordingly, the contact force between the tulip finger 654 and the external terminal may be further increased.
  • a plurality of fixing rings 651 may be provided. In the illustrated embodiment, four fixing rings 651 are arranged side by side along the front-rear direction.
  • a contact plate 652 and a toothed ring 653 are positioned radially inside the retaining ring 651 and the tulip finger 654 .
  • the contact plate 652 is positioned so as to be in contact with a terminal of an external power source or load.
  • the contactor plate 652 is connected to the energized main terminal 630 and energized, and the external power source or load and the energized main terminal 630 are energized.
  • the contact plate 652 may be formed in a plate shape. In the illustrated embodiment, the contact plate 652 is formed in a disk shape. However, the contact plate 652 is not limited to the illustrated shape, and may be formed in various shapes. For example, the contact plate 652 may be formed in a ring shape.
  • the contact plate 652 may be formed of a conductive material.
  • the contact plate 652 may be formed of copper (Cu), silver (Ag), or the like.
  • the toothed ring 653 prevents twisting or flow of the tulip finger 654 .
  • the toothed ring 653 is positioned radially inside the tulip finger 654 . Specifically, the toothed ring 653 is in contact with the inner circumferential surface of the tulip finger 654 . Accordingly, the toothed ring 653 can support the tulip fingers 654 radially inward.
  • the toothed ring 653 may be formed of a high-rigidity material.
  • the toothed ring 653 may be formed of a metal material.
  • a plurality of toothed rings 653 may be provided.
  • the two toothed rings 653 are arranged side by side in the front-rear direction.
  • the toothed ring 653 is formed in a ring shape in which a plurality of teeth 653a are formed on the outer circumferential surface. At this time, the inner diameter of the toothed ring 653 is formed smaller than the inner diameter of the tulip finger 654 .
  • the teeth 653a are formed to protrude radially outward of the toothed ring 653 .
  • a tulip finger 654 is coupled between two adjacent teeth 653a. Specifically, the toothed fastening groove 654b of the tulip finger 654 is engaged with the depression between the two adjacent teeth 653a.
  • the teeth 653a are formed so that a cross-section of a rectangle extends in the front-rear direction.
  • the teeth 653a are not limited to the illustrated shape, and may be formed in various shapes.
  • the sawtooth 653a may be formed by extending a triangular cross-section in one direction.
  • a plurality of teeth 653a may be provided. At this time, the number of teeth 653a is formed to be the same as the number of tulip fingers 654 .
  • the tulip finger 654 increases the contact force between the terminal of an external power source or load and the vacuum circuit breaker 1 .
  • a plurality of tulip fingers 654 may be provided.
  • the plurality of tulip fingers 654 are arranged along the circumferential direction of the virtual circle. In the illustrated embodiment, the plurality of tulip fingers 654 are all formed in the same shape.
  • a retaining ring 651 is coupled to the radially outer side of the tulip finger 654 .
  • a contact plate 652 and a toothed ring 653 are coupled to the radially inner side of the tulip finger 654 .
  • the radially outer side of the tulip finger 654 is supported by the retaining ring 651
  • the radially inner side is supported by the contactor plate 652 and the toothed ring 653 .
  • the tulip fingers 654 are formed in a plate shape extending in one direction. In the illustrated embodiment, the tulip fingers 654 extend in an anterior-posterior direction.
  • a fixing ring fastening groove 654a is formed on the upper side of the tulip finger 654
  • a toothed fastening groove 654b and a terminal contact part 654c are formed on the lower side of the tulip finger 654 .
  • the fixing ring fastening groove 654a prevents the fixing ring 651 from being arbitrarily separated from the coupling point.
  • the fixing ring fastening groove 654a is disposed adjacent to the fixing ring 651 . Specifically, the fixing ring fastening groove 654a is in contact with the inner circumferential surface of the fixing ring 651 .
  • the fixing ring fastening groove 654a is recessed downward from the upper surface of the tulip finger 654 .
  • the fixing ring fastening groove 654a is formed in a shape corresponding to the inner periphery of the fixing ring 651 .
  • a plurality of fixing ring fastening grooves 654a may be provided. At this time, the number of the fixing ring fastening grooves 654a is formed to be the same as the number of the fixing rings 651 . In the illustrated embodiment, the four fixing ring fastening grooves 654a are arranged side by side in the front-rear direction.
  • the toothed fastening groove 654b makes the coupling between the toothed ring 653 and the tulip finger 654 more robust. To this end, the toothed fastening groove (654b) is engaged with the toothed ring (653).
  • the tooth fastening groove 654b is disposed adjacent to the tooth 653a of the tooth ring 653 . Specifically, the tooth fastening groove (654b) is in contact with the depression formed between the two adjacent teeth (653a).
  • the toothed fastening groove 654b is recessed upwardly from the lower surface of the tulip finger 654 .
  • the tooth fastening groove 654b is formed in a shape corresponding to the tooth 653a.
  • a plurality of toothed fastening grooves 654b may be provided. At this time, the number of the toothed fastening grooves 654b is formed to be the same as the number of the toothed ring 653 . In the illustrated embodiment, the two toothed fastening grooves 654b are arranged side by side in the front-rear direction.
  • the terminal contact portion 654c is a portion in direct contact with the outer peripheral surface of the external terminal.
  • the terminal contact portion 654c is disposed adjacent to the outer peripheral surface of the external terminal. Also, the terminal contact portion 654c supports the external terminal radially outward.
  • the terminal contact portion 654c is formed to protrude downward from the lower surface of the tulip finger 654 .
  • the terminal contact portion 654c is formed to protrude roundly. Specifically, the terminal contact portion 654c is formed to protrude in a semicircular shape.
  • a plurality of terminal contact portions 654c may be provided. In the illustrated embodiment, a total of two terminal contact portions 654c are respectively provided at both ends of the front side and the rear side of the tulip finger 654 .
  • the temperature sensor 70 according to an embodiment of the present invention will be described with reference to FIGS. 17 to 19 .
  • the temperature sensor 70 measures and monitors the temperature at a specific point of the vacuum circuit breaker 1 in real time.
  • the temperature sensor 70 is accommodated in the space formed inside the frame 10 .
  • the temperature sensor 70 is accommodated in the space formed inside the housing portion 610 of the energized pole (60).
  • the temperature sensor 70 is disposed adjacent to the tulip contactor 650 . Specifically, the temperature sensor 70 is disposed adjacent to one end of the tulip finger 654 .
  • the temperature sensor 70 may be coupled to the tulip finger 654 to measure the temperature of a specific point of the tulip finger 654 .
  • a plurality of temperature sensor 70 may be provided.
  • the plurality of temperature sensors 70 may be attached to different tulip fingers 654 .
  • the temperature sensor 70 includes a sensor body 710 and a coupling ring 720 .
  • the sensor body 710 processes the temperature data collected from the sensing contact 711a and transmits it to the outside of the vacuum circuit breaker 1 .
  • the sensor body 710 is disposed adjacent to the tulip finger 654 of the tulip contactor 650 . In the illustrated embodiment, the sensor body 710 is disposed adjacent to the backside of the tulip fingers 654 .
  • the sensor body 710 is coupled to the tulip finger 654 .
  • the sensor body 710 is coupled to the tulip finger 654 by the coupling ring 720 .
  • the coupling ring 720 closely couples the sensor body 710 and the tulip finger 654 .
  • a coupling ring 720 is coupled to one side of the sensor body 710 .
  • the coupling ring 720 is coupled to the front side of the sensor body 710 .
  • the sensor body 710 is formed in a rectangular parallelepiped shape.
  • the sensor body 710 is not limited to the illustrated shape, and may be formed in various shapes.
  • the sensor body 710 may be formed in a spherical shape.
  • a space for accommodating various components is formed inside the sensor body 710 .
  • the space may include a power supply unit, an input unit, a data processing unit, and a communication unit.
  • a battery may be embedded in the space.
  • the sensor body 710 includes a body front portion 711 .
  • the body front portion 711 forms a front side boundary of the sensor body 710 .
  • a sensing contact 711a is formed on the body front portion 711 .
  • the sensing contact 711a is a part where the temperature sensor 70 directly measures the temperature.
  • the sensing contact 711a transmits temperature data to an input unit provided inside the sensor body 710 .
  • the sensing contact 711a is formed on one surface of the sensor body 710 facing the tulip finger 654 . Specifically, the sensing contact 711a is formed to protrude toward the tulip finger 654 from one surface of the sensor body 710 facing the tulip finger 654 .
  • the sensing contact 711a is in contact with a specific point at which temperature is to be measured.
  • the sensing contact 711a may contact the rear side of the tulip finger 654 to measure the temperature of the tulip finger 654 .
  • the sensing contact 711a is formed to protrude from the body front portion 711 toward the front side.
  • the sensing contact 711a is formed with a circular cross-section extending toward the front side.
  • the sensing contact 711a is not limited to the illustrated shape, and may be formed in various shapes.
  • the sensing contact 711a may be formed by extending a polygonal cross-section toward the front side.
  • a plurality of sensing contacts 711a may be provided. At this time, the different sensing contacts 711a are disposed to be spaced apart from each other to measure temperatures at different points.
  • the coupling ring 720 fixes the sensor body 710 to the tulip finger 654 .
  • the coupling ring 720 fixes the sensor body 710 to the terminal contact portion 654c of the tulip finger 654 .
  • the coupling ring 720 is disposed to surround the terminal contact portion 654c. That is, the terminal contact portion 654c is inserted and coupled to the coupling ring 720 .
  • the inner periphery of the coupling ring 720 is disposed to be in contact with the outer periphery of the tulip finger 654 .
  • the inner circumference of the coupling ring 720 may be formed to be the same as the outer circumference of the terminal contact portion 654c.
  • One end of the coupling ring 720 is coupled to the sensor body 710 .
  • one end of the rear side of the coupling ring 720 is coupled to the sensor body (710).
  • the bonding ring 720 is formed in a U-shape.
  • the coupling ring 720 is not limited to the illustrated shape, and may be formed in various shapes.
  • the bonding ring 720 may be formed in a curved line.
  • the coupling ring 720 serves as a path for the magnetic field generated in the tulip contactor 650 .
  • the magnetic field generated in the tulip contactor 650 is transmitted to the sensor body 710 through the coupling ring 720 .
  • the coupling ring 720 may be formed of a conductive material.
  • the bonding ring 720 may be formed of copper (Cu), silver (Ag), or the like.
  • a plurality of bonding rings 720 may be provided.
  • the two bonding rings 720 may be arranged side by side in the vertical direction.
  • the coupling ring 720 is divided into a ring side portion 721 and a ring front portion 722 .
  • the ring side portion 721 and the ring front portion 722 form the left and right sides and the front side boundary of the coupling ring 720, respectively.
  • the ring side portion 721 extends from the left and right ends of the ring front portion 722 to the rear side. That is, the ring side portion 721 is continuous with the left or right end of the ring front portion 722 .
  • a tulip insertion hole 723 is formed in the space formed between the ring side portion 721 , the ring front portion 722 , and the sensor body 710 .
  • the tulip insertion hole 723 is a space through which the terminal contact portion 654c of the tulip finger 654 is coupled therethrough. To this end, it is preferable that the cross-sectional area of the tulip insertion hole 723 is larger than the cross-sectional area of the terminal contact portion 654c.
  • the tulip insertion hole 723 is disposed to surround a portion of the tulip finger 654 . Specifically, the tulip insertion hole 723 is disposed to surround the terminal contact portion 654c.
  • the tulip insertion hole 723 is formed with a rectangular cross-section extending in the vertical direction.
  • the tulip insertion hole 723 is not limited to the illustrated shape, and may be formed in various shapes.
  • the tulip insertion hole 723 may be formed by extending an elliptical cross section.
  • the tulip insertion hole 723 is formed in a shape corresponding to the terminal contact portion 654c.
  • the inner circumference of the tulip insertion hole 723 is formed to be the same as the outer circumference of the terminal contact portion 654c.
  • the temperature sensor 70 may further include a power supply unit, an input unit, a data processing unit, and a communication unit.
  • the power supply unit, the input unit, the data processing unit, and the communication unit may be accommodated in a space formed inside the sensor body 710 .
  • the power supply unit supplies a power source for operating the temperature sensor 70 . Specifically, the power supply unit supplies the electrical energy received from the coupling ring 720 as a power source of the temperature sensor 70 . To this end, the power supply unit receives the magnetic field generated from the tulip contactor 650 through the coupling ring 720 .
  • the input unit collects temperature data measured by the sensing contact 711a and transmits it to the data processing unit.
  • the data processing unit organizes the data received from the input unit, and then transmits it to the communication unit.
  • the communication unit transmits the data received from the data processing unit to the outside of the vacuum circuit breaker 1 .
  • the user can check the data transmitted from the communication unit to measure and monitor the temperature of the vacuum circuit breaker 1 .
  • embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

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  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention discloses a vacuum circuit breaker in which the temperature of a tulip contact can be measured and monitored, the vacuum circuit breaker including a plurality of tulip fingers and a temperature detection sensor disposed adjacent to the tulip fingers. The temperature detection sensor includes: a sensor body which has, on one surface, a sensing contact capable of measuring the temperature of a specific point on the tulip finger, and inside which an input unit is accommodated; and a coupling ring coupled to the one tulip finger-facing surface of the sensor body and having a tulip insertion hole that surrounds a portion of the tulip finger.

Description

진공 차단기vacuum breaker
본 발명은 진공 차단기에 관한 것으로, 보다 구체적으로, 튤립 접촉자의 온도를 측정하고 감시할 수 있는 진공 차단기에 관한 것이다.The present invention relates to a vacuum circuit breaker, and more particularly, to a vacuum circuit breaker capable of measuring and monitoring the temperature of a tulip contactor.
진공 차단기(Vacuum circuit breaker)는 특고압 또는 고압 배전 선로의 과전류, 단락 및 지락 사고 등의 이상 전류가 발생될 경우, 회로를 차단하기 위해 구비되는 장치이다.A vacuum circuit breaker is a device provided to block a circuit when an abnormal current such as an overcurrent, a short circuit, or a ground fault occurs in an extra-high voltage or high voltage distribution line.
진공 차단기는 투입 상태 또는 트립 상태로 동작될 수 있다. 투입 상태에서, 진공 차단기는 외부의 전원 또는 부하와 통전된다. 트립 상태에서, 진공 차단기는 외부의 전원 또는 부하와의 통전이 차단된다.The vacuum circuit breaker can be operated in closed state or tripped state. In the closed state, the vacuum circuit breaker is energized with an external power source or load. In the trip state, the vacuum circuit breaker is disconnected from external power or load.
진공 차단기는 다양한 구성 요소를 포함한다. 진동 차단기가 작동됨에 따라, 상기 구성 요소가 작동되며 열이 발생된다. 또한, 외부의 전원으로부터 이상 전류가 인가되는 경우에도 차단기의 각 구성 요소에서 과다한 열이 발생될 수 있다.A vacuum interrupter includes various components. As the vibration damper is activated, the component is activated and heat is generated. In addition, even when an abnormal current is applied from an external power source, excessive heat may be generated in each component of the circuit breaker.
발생된 열이 진공 차단기에 기 설정된 시간 이상 체류될 경우, 진공 차단기의 각 구성 요소가 손상될 우려가 있다. 따라서, 진공 차단기에는 내부 또는 외부의 온도를 측정하기 위한 온도 감지 센서가 구비되는 것이 일반적이다.When the generated heat stays in the vacuum circuit breaker for more than a preset time, there is a risk of damage to each component of the vacuum circuit breaker. Accordingly, the vacuum circuit breaker is generally provided with a temperature sensor for measuring internal or external temperature.
진공 차단기의 발열량은 부위마다 차이가 존재한다. 이때, 발열에 의한 손상은 발열량이 높은 부위에서 발생될 가능성이 높다. 그러나, 종래의 진공 차단기는 특정 지점에 대한 온도 감지에 어려움이 있다.The calorific value of a vacuum circuit breaker is different for each part. In this case, damage due to heat is highly likely to occur in a portion having a high calorific value. However, the conventional vacuum circuit breaker has difficulty in sensing the temperature at a specific point.
이는 진공 차단기의 발열 사고 방지에 불리하게 작용할 수 있다. 뿐만 아니라, 이는 진공 차단기의 온도 감지에 불필요한 비용 및 시간 증대를 초래할 수 있다.This may adversely affect the prevention of heat accidents of the vacuum circuit breaker. In addition, this may result in unnecessary cost and time increase for temperature sensing of the vacuum circuit breaker.
따라서, 진공 차단기의 특정 지점의 온도를 실시간으로 측정하고 감시할 수 있는 진공 차단기의 개발이 고려될 수 있다. 특히, 튤립 접촉자의 온도를 실시간으로 측정하고 감시할 수 있는 진공 차단기의 개발이 고려될 수 있다.Accordingly, the development of a vacuum circuit breaker capable of measuring and monitoring the temperature of a specific point of the vacuum circuit breaker in real time may be considered. In particular, the development of a vacuum circuit breaker capable of measuring and monitoring the temperature of the tulip contactor in real time may be considered.
한국등록특허공보 제10-1773306호는 배전반의 무선 온도 감지 장치를 개시한다. 구체적으로, 배전반 내부에 구비된 차단기의 튤립콘택, 주모선 또는 케이블 단말부 중 어느 한 곳에 설치되는 무선 온도 감지 장치를 개시한다.Korean Patent Publication No. 10-1773306 discloses a wireless temperature sensing device for a switchboard. Specifically, a wireless temperature sensing device installed in any one of a tulip contact, a main bus, or a cable terminal of a circuit breaker provided inside a switchboard is disclosed.
그런데, 이러한 유형의 온도 감지 장치는 튤립컨택의 하우징부에 부착된다. 즉, 온도 감지 장치가 튤립컨택에 직접적으로 부착되지 않는다. 이에 따라, 온도 측정 정확도가 저감될 수 있다.By the way, this type of temperature sensing device is attached to the housing part of the tulip contact. That is, the temperature sensing device is not directly attached to the tulip contact. Accordingly, temperature measurement accuracy may be reduced.
중국등록특허공보 제208296994호는 배전반의 온도 센서를 개시한다. 구체적으로, 저압 배전반 내부에 위치되는 온도 센서를 개시한다.Chinese Patent Publication No. 208296994 discloses a temperature sensor of a switchboard. Specifically, a temperature sensor positioned inside a low-voltage switchgear is disclosed.
그런데, 이러한 유형의 온도 센서 또한, 차단기의 외부에 부착되고, 접촉자에 직접적으로 부착되지 않는다. 따라서, 온도 센서의 정확도가 불충분하고, 과도한 온도 측정 비용 및 시간이 소요될 가능성이 있다.By the way, this type of temperature sensor is also attached to the outside of the circuit breaker and not directly attached to the contactor. Therefore, the accuracy of the temperature sensor is insufficient, and there is a possibility that excessive temperature measurement cost and time are required.
[선행기술문헌][Prior art literature]
[특허문헌][Patent Literature]
(특허문헌 1) 한국등록특허공보 제10-1773306호 (2017.08.31.)(Patent Document 1) Korean Patent Publication No. 10-1773306 (2017.08.31.)
(특허문헌 2) 중국등록특허공보 제208296994호 (2018.12.28.)(Patent Document 2) Chinese Patent Publication No. 208296994 (2018.12.28.)
본 발명의 일 목적은, 각 상의 튤립 접촉자의 온도를 직접적으로 측정할 수 있는 진공 차단기를 제공하는 것이다.One object of the present invention is to provide a vacuum circuit breaker capable of directly measuring the temperature of the contactor of each phase of the tulip.
본 발명의 다른 일 목적은, 튤립 접촉자의 유동에 의한 온도 감지 센서의 파손이 방지될 수 있는 진공 차단기를 제공하는 것이다.Another object of the present invention is to provide a vacuum circuit breaker capable of preventing damage to the temperature sensor due to the flow of the tulip contactor.
본 발명의 또 다른 일 목적은, 온도 감지를 위하여 소요되는 비용 및 시간이 보다 절감될 수 있는 진공 차단기를 제공하는 것이다.Another object of the present invention is to provide a vacuum circuit breaker in which the cost and time required for temperature sensing can be further reduced.
본 발명의 또 다른 일 목적은, 다수의 온도 감지 센서가 구비된 진공 차단기를 제공하는 것이다.Another object of the present invention is to provide a vacuum circuit breaker equipped with a plurality of temperature sensing sensors.
본 발명의 또 다른 일 목적은, 온도 감지 센서가 통전주 외부와 통전되지 않고 절연될 수 있는 진공 차단기를 제공하는 것이다.Another object of the present invention is to provide a vacuum circuit breaker in which the temperature sensor can be insulated without being energized from the outside of the energized pole.
상기 목적을 달성하기 위해, 본 발명의 실시 예에 따른 진공 차단기는, 외부의 전원 또는 부하와 통전 가능하게 연결되고, 가상의 원의 원주 방향을 따라 배치되는 복수 개의 튤립 핑거; 및 상기 튤립 핑거와 인접하게 배치되는 온도 감지 센서를 포함하고, 상기 온도 감지 센서는, 상기 튤립 핑거의 특정 지점과 접촉되어 상기 특정 지점의 온도를 측정할 수 있는 센싱 접점이 일 면에 형성되고, 내부에 입력부가 수용되는 센서 본체; 및 상기 튤립 핑거를 향하는 상기 센서 본체의 일 면과 결합되고, 상기 튤립 핑거의 일부를 둘러싸는 튤립 삽입공이 형성되는 결합 고리를 포함한다.In order to achieve the above object, a vacuum circuit breaker according to an embodiment of the present invention includes: a plurality of tulip fingers connected to an external power source or a load to be energized and arranged along the circumferential direction of a virtual circle; and a temperature sensor disposed adjacent to the tulip finger, wherein the temperature sensor has a sensing contact point that is in contact with a specific point of the tulip finger to measure the temperature of the specific point is formed on one surface, a sensor body in which the input unit is accommodated; and a coupling ring coupled to one surface of the sensor body facing the tulip finger and having a tulip insertion hole surrounding a portion of the tulip finger.
또한, 상기 튤립 핑거는, 상기 외부의 전원 또는 부하의 단자를 향하는 일 면으로부터 상기 단자를 향해 돌출 형성되어, 상기 단자와 접하는 단자 접촉부를 포함하고, 상기 튤립 삽입공에는, 상기 단자 접촉부가 관통 결합될 수 있다.In addition, the tulip finger is formed to protrude toward the terminal from one surface facing the terminal of the external power source or load, and includes a terminal contact portion in contact with the terminal, and the terminal contact portion is coupled through the tulip insertion hole can be
또한, 상기 튤립 삽입공은, 상기 단자 접촉부와 대응되는 형상으로 형성될 수 있다.In addition, the tulip insertion hole may be formed in a shape corresponding to the terminal contact portion.
또한, 상기 튤립 삽입공은, 내측 둘레가 상기 단자 접촉부의 외측 둘레와 동일하게 형성될 수 있다.Also, the tulip insertion hole may be formed so that an inner circumference thereof is the same as an outer circumference of the terminal contact portion.
또한, 상기 결합 고리는, 금속 소재로 형성될 수 있다.In addition, the bonding ring may be formed of a metal material.
또한, 상기 온도 감지 센서는, 동력원을 공급하고, 상기 센서 본체의 내부에 내장되는 전원부를 포함할 수 있다.In addition, the temperature sensor may include a power supply that supplies a power source and is built into the sensor body.
또한, 상기 전원부는, 상기 결합 고리와 통전 가능하게 연결되고, 상기 튤립 핑거에서 발생된 자계를 상기 결합 고리를 통해 전달받아 전기 에너지를 생성할 수 있다.In addition, the power supply unit may be electrically connected to the coupling ring, and may generate electric energy by receiving a magnetic field generated from the tulip finger through the coupling ring.
또한, 상기 센서 본체의 내부에는, 상기 전원부에 통전 가능하게 연결되는 배터리가 내장될 수 있다.In addition, a battery connected to the power supply unit may be energized inside the sensor body.
또한, 상기 온도 감지 센서는 복수 개 구비될 수 있고, 복수 개의 상기 온도 감지 센서는, 서로 이격되어, 서로 다른 지점의 온도를 측정할 수 있다.In addition, a plurality of temperature detection sensors may be provided, and the plurality of temperature detection sensors may be spaced apart from each other to measure temperatures at different points.
또한, 상기 입력부는, 상기 센싱 접점으로부터 온도 데이터를 수집하고, 상기 온도 감지 센서는, 상기 입력부로부터 온도 데이터를 전달받아 정리하는 데이터 처리부; 및 상기 데이터 처리부에서 정리된 데이터를 외부로 송출하는 통신부를 포함할 수 있다.The input unit may include: a data processing unit that collects temperature data from the sensing contact, and the temperature sensor receives and organizes the temperature data from the input unit; and a communication unit for transmitting the data organized by the data processing unit to the outside.
본 발명의 다양한 효과 중, 상술한 해결 수단을 통해 얻을 수 있는 효과는 다음과 같다.Among the various effects of the present invention, effects that can be obtained through the above-described solution are as follows.
먼저, 온도 감지 센서가 튤립 접촉자에 직접적으로 부착된다. 구체적으로, 온도 감지 센서가 각 상의 튤립 접촉자에 직접적으로 부착된다.First, a temperature sensor is directly attached to the tulip contactor. Specifically, a temperature sensor is directly attached to the tulip contactor of each phase.
이에 따라, 각 상의 튤립 접촉자의 온도가 직접적으로 측정될 수 있다. 이때, 진공 차단기의 서로 다른 발열원이 중첩되어 측정되지 않는다.Accordingly, the temperature of the tulip contact of each phase can be directly measured. At this time, different heat sources of the vacuum circuit breaker overlap and are not measured.
따라서, 열화상 카메라와 비교하였을 때, 온도 데이터의 정확성이 보다 향상될 수 있다. 더 나아가, 진공 차단기의 유지 보수성이 증대될 수 있다.Therefore, compared with a thermal imaging camera, the accuracy of temperature data can be further improved. Furthermore, the maintainability of the vacuum circuit breaker can be increased.
뿐만 아니라, 각 상의 튤립 접촉자의 온도가 실시간으로 용이하게 측정 및 감시될 수 있다.In addition, the temperature of the tulip contactor of each phase can be easily measured and monitored in real time.
또한, 온도 감지 센서는 한 개의 튤립 핑거에 기구적으로 고정된다. 이에 따라, 튤립 핑거가 이동될 때, 온도 감지 센서가 튤립 핑거와 함께 이동될 수 있다. 즉, 온도 감지 센서는 튤립 접촉자의 유동에 크게 영향을 받지 않는다.In addition, the temperature sensor is mechanically fixed to one tulip finger. Accordingly, when the tulip finger is moved, the temperature sensor may be moved together with the tulip finger. That is, the temperature sensor is not greatly affected by the flow of the tulip contact.
따라서, 온도 감지 센서가 튤립 접촉자의 유동에도 유연하게 대응 가능하다. 이에 따라, 튤립 접촉자의 유동에 의한 온도 감지 센서의 파손이 방지될 수 있다.Therefore, the temperature sensor can flexibly respond to the flow of the tulip contact. Accordingly, damage to the temperature sensor due to the flow of the tulip contact can be prevented.
또한, 온도 감지 센서는 튤립 접촉자의 특정 지점에 대한 온도를 측정하고 감시한다. 이에 따라, 진공 차단기 전체에 대한 온도 측정이 별도로 요구되지 않는다.In addition, the temperature sensor measures and monitors the temperature at a specific point of the tulip contact. Accordingly, a separate temperature measurement for the entire vacuum circuit breaker is not required.
따라서, 진공 차단기의 온도 감지를 위한 비용 및 시간이 보다 절감될 수 있다. 뿐만 아니라, 열화상 카메라의 이미지 데이터를 저장하기 위한 추가적인 장치 또한 요구되지 않는다.Accordingly, the cost and time for temperature sensing of the vacuum circuit breaker can be further reduced. Furthermore, an additional device for storing the image data of the thermal imaging camera is also not required.
또한, 한 개의 진공 차단기에 복수 개의 온도 감지 센서가 구비될 수 있다. 즉, 복수 개의 특정 지점에 대한 온도를 동시에 측정할 수 있다.In addition, a plurality of temperature detection sensors may be provided in one vacuum circuit breaker. That is, temperatures for a plurality of specific points can be simultaneously measured.
따라서, 사용자가 각 상의 튤립 접촉자에 대한 온도를 수집하고 확인할 수 있다. 이에 따라, 진공 차단기의 온도를 측정하고 감시하기 위한 작업 편의성이 보다 향상될 수 있다.Therefore, the user can collect and check the temperature for the tulip contactor in each phase. Accordingly, work convenience for measuring and monitoring the temperature of the vacuum circuit breaker can be further improved.
또한, 온도 감지 센서가 통전주의 하우징부 내부에 위치된다. 구체적으로, 온도 감지 센서가 통전주의 튤립 핑거에 인접하게 위치된다.In addition, the temperature sensor is located inside the housing portion of the energized pole. Specifically, the temperature sensor is positioned adjacent to the tulip finger of the energized pole.
따라서, 온도 감지 센서가 통전주 외부와 통전되지 않고, 절연될 수 있다. 이에 따라, 온도 감지 센서에 과전류 등의 이상 전류가 발생되는 것이 예방될 수 있다. 더 나아가, 온도 감지 센서의 손상이 방지될 수 있다.Accordingly, the temperature sensor may be insulated without being energized from the outside of the energized pole. Accordingly, it is possible to prevent an abnormal current such as an overcurrent from being generated in the temperature sensor. Furthermore, damage to the temperature sensing sensor can be prevented.
도 1은 본 발명의 실시 예에 따른 진공 차단기를 도시하는 사시도이다.1 is a perspective view showing a vacuum circuit breaker according to an embodiment of the present invention.
도 2는 도 1의 진공 차단기에 구비되는 통전주를 도시하는 사시도이다.FIG. 2 is a perspective view illustrating an energized pole provided in the vacuum circuit breaker of FIG. 1 .
도 3은 도 2의 통전주를 도시하는 측면도이다.Fig. 3 is a side view showing the energized pole of Fig. 2;
도 4는 도 2의 통전주에 구비되는 플레이트부, 통전주 터미널(terminal), 결합 부재 및 튤립 접촉자를 도시하는 사시도이다.4 is a perspective view illustrating a plate portion, an energized pole terminal, a coupling member, and a tulip contactor provided in the energized pole of FIG. 2 .
도 5는 도 4의 플레이트부, 통전주 터미널, 결합 부재 및 튤립 접촉자를 도시하는 측면도이다.Fig. 5 is a side view showing the plate portion, the energized pole terminal, the coupling member and the tulip contact of Fig. 4;
도 6은 도 4의 플레이트부, 통전주 터미널, 결합 부재 및 튤립 접촉자를 도시하는 평면도이다.FIG. 6 is a plan view showing the plate portion, the energized pole terminal, the coupling member, and the tulip contact of FIG. 4 .
도 7은 도 1의 진공 차단기에 구비되는 튤립 핑거 및 온도 감지 센서를 도시하는 사시도이다.7 is a perspective view illustrating a tulip finger and a temperature sensor provided in the vacuum circuit breaker of FIG. 1 .
도 8은 도 7의 튤립 핑거 및 온도 감지 센서를 도시하는 측면도이다.FIG. 8 is a side view illustrating the tulip finger and temperature sensor of FIG. 7 .
도 9는 도 7의 튤립 핑거 및 온도 감지 센서를 도시하는 평면도이다.9 is a plan view illustrating the tulip finger and the temperature sensor of FIG. 7 .
도 10은 도 2의 통전주에 구비되는 튤립 접촉자를 도시하는 사시도이다.10 is a perspective view illustrating a tulip contact provided in the energized pole of FIG. 2 .
도 11은 도 10의 튤립 접촉자를 도시하는 측면도이다.11 is a side view illustrating the tulip contactor of FIG. 10 .
도 12는 도 10의 튤립 접촉자를 도시하는 측단면도이다.FIG. 12 is a side cross-sectional view illustrating the tulip contactor of FIG. 10 .
도 13은 도 10의 튤립 접촉자를 도시하는 정면도이다.Fig. 13 is a front view showing the tulip contactor of Fig. 10;
도 14는 도 10의 튤립 접촉자를 도시하는 분해 사시도이다.14 is an exploded perspective view illustrating the tulip contactor of FIG. 10 .
도 15는 도 10의 튤립 접촉자에 구비되는 튤립 핑거를 도시하는 사시도이다.15 is a perspective view illustrating a tulip finger provided in the tulip contactor of FIG. 10 .
도 16은 도 15의 튤립 핑거를 도시하는 측면도이다.Fig. 16 is a side view showing the tulip finger of Fig. 15;
도 17은 도 1의 진공 차단기에 구비되는 온도 감지 센서를 도시하는 사시도이다.17 is a perspective view illustrating a temperature sensor provided in the vacuum circuit breaker of FIG. 1 .
도 18은 도 17의 온도 감지 센서를 도시하는 측면도이다.FIG. 18 is a side view illustrating the temperature sensor of FIG. 17 ;
도 19는 도 17의 온도 감지 센서를 도시하는 평면도이다.19 is a plan view illustrating the temperature sensor of FIG. 17 .
이하, 본 발명의 실시 예에 따른 진공 차단기를 도면을 참고하여 보다 상세하게 설명한다.Hereinafter, a vacuum circuit breaker according to an embodiment of the present invention will be described in more detail with reference to the drawings.
이하의 설명에서는 본 발명의 특징을 명확하게 하기 위해, 일부 구성 요소들에 대한 설명이 생략될 수 있다.In the following description, in order to clarify the characteristics of the present invention, descriptions of some components may be omitted.
본 명세서에서는 서로 다른 실시 예라도 동일한 구성에 대해서는 동일한 참조 번호를 부여하고, 이에 대한 중복되는 설명은 생략하기로 한다.In the present specification, the same reference numerals are assigned to the same components even in different embodiments, and overlapping descriptions thereof will be omitted.
첨부된 도면은 본 명세서에 개시된 실시 예를 쉽게 이해할 수 있도록 하기 위한 것일 뿐, 첨부된 도면에 의해 본 명세서에 개시된 기술적 사상이 제한되지 않는다.The accompanying drawings are only for making it easy to understand the embodiments disclosed in the present specification, and the technical ideas disclosed in the present specification are not limited by the accompanying drawings.
단수의 표현은 문맥상 명백하게 다르기 뜻하지 않는 한, 복수의 표현을 포함한다.The singular expression includes the plural expression unless the context clearly dictates otherwise.
*이하의 설명에서 사용되는 “상측”, “하측”, 좌측”, 우측”, “전방 측” 및 “후방 측”이라는 용어는 도 1 및 도 15에 도시된 좌표계를 참조하여 이해될 것이다.* The terms "upper", "lower", left", right", "front side" and "rear side" used in the following description will be understood with reference to the coordinate system shown in FIGS. 1 and 15 .
1. 본 발명의 실시 예에 따른 진공 차단기(1)의 설명1. Description of the vacuum circuit breaker 1 according to the embodiment of the present invention
이하에서는, 도 1 내지 도 16을 참조하여 본 발명의 실시 예에 따른 진공 차단기(1)에 대하여 설명한다.Hereinafter, a vacuum circuit breaker 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 16 .
진공 차단기(1)는 외부의 전원 및 부하 간의 통전 상태를 허용하거나 차단할 수 있다. 이를 위해, 진공 차단기(1)는 외부의 전원 및 부하와 통전 가능하게 연결된다. 달리 말하면, 외부의 전원 및 부하는 진공 차단기(1)에 의해 통전 가능하게 연결될 수 있다.The vacuum circuit breaker 1 may allow or block an energized state between an external power source and a load. To this end, the vacuum circuit breaker 1 is electrically connected to an external power source and load. In other words, an external power source and a load may be electrically connected by the vacuum circuit breaker 1 .
진공 차단기(1)의 고정 접점과 가동 접점이 서로 접촉되는 경우, 외부의 전원 및 부하가 진공 차단기(1)를 통해 통전 가능하게 연결될 수 있다. 반대로, 진공 차단기(1)의 고정 접점 및 가동 접점이 서로 이격되는 경우, 외부의 전원 및 부하 간 통전 상태는 차단된다.When the fixed contact and the movable contact of the vacuum circuit breaker 1 are in contact with each other, an external power source and a load may be electrically connected through the vacuum circuit breaker 1 . Conversely, when the fixed contact and the movable contact of the vacuum circuit breaker 1 are spaced apart from each other, the energized state between the external power source and the load is cut off.
도 1 내지 도 6을 참조하면, 본 발명의 실시 예에 따른 진공 차단기(1)는 프레임부(10), 메커니즘(mechanism) 조립체(20), 통전주(60) 및 온도 감지 센서(70)를 포함한다.1 to 6 , the vacuum circuit breaker 1 according to an embodiment of the present invention includes a frame portion 10 , a mechanism assembly 20 , an energized pole 60 and a temperature sensor 70 . include
이하에서는, 첨부된 도면들을 참조하여 본 발명의 실시 예에 따른 진공 차단기(1)의 구성을 설명하되, 프레임부(10), 메커니즘 조립체(20), 통전주(60) 및 온도 감지 센서(70)는 별항으로 설명한다.Hereinafter, the configuration of the vacuum circuit breaker 1 according to an embodiment of the present invention will be described with reference to the accompanying drawings, but the frame portion 10, the mechanism assembly 20, the energized pole 60 and the temperature sensor 70 ) is explained as a separate clause.
(1) 프레임부(10)의 설명(1) Description of the frame part 10
이하에서는, 도 1을 참조하여 프레임부(10)에 대하여 설명한다.Hereinafter, the frame unit 10 will be described with reference to FIG. 1 .
프레임부(10)는 진공 차단기(1)의 외형을 형성한다. 프레임부(10)는 진공 차단기(1)가 외부로 노출되는 부분이다.The frame part 10 forms the outer shape of the vacuum circuit breaker 1 . The frame part 10 is a part to which the vacuum circuit breaker 1 is exposed to the outside.
프레임부(10)의 내부에는 공간이 형성된다. 상기 공간에는 진공 차단기(1)가 작동되기 위한 다양한 구성 요소가 수용될 수 있다. 상기 다양한 구성 요소는 프레임부(10)에 둘러싸여, 외부에 노출되지 않을 수 있다.A space is formed inside the frame part 10 . Various components for operating the vacuum circuit breaker 1 may be accommodated in the space. The various components may be surrounded by the frame unit 10 and not be exposed to the outside.
도시된 실시 예에서, 프레임부(10)의 내부 공간에는 메커니즘 조립체(20), 통전주(60) 및 온도 감지 센서(70)가 수용된다.In the illustrated embodiment, the mechanism assembly 20, the energized pole 60 and the temperature sensor 70 are accommodated in the inner space of the frame part 10 .
도시된 실시 예에서, 프레임부(10)는 상부 프레임(110) 및 측면 프레임(120)을 포함한다.In the illustrated embodiment, the frame part 10 includes an upper frame 110 and a side frame 120 .
상부 프레임(110)은 프레임부(10)의 일 측, 도시된 실시 예에서 상측에 배치된다. 상부 프레임(110)은 프레임부(10)의 내부에 형성된 공간을 상측에서 덮도록 배치된다.The upper frame 110 is disposed on one side of the frame unit 10 , in the illustrated embodiment, on the upper side. The upper frame 110 is disposed to cover the space formed inside the frame part 10 from the upper side.
도시된 실시 예에서, 상부 프레임(110)은 전후 방향의 연장 길이가 좌우 방향의 연장 길이보다 긴 직사각형의 판형으로 형성된다.In the illustrated embodiment, the upper frame 110 is formed in a rectangular plate shape in which an extension length in the front-rear direction is longer than an extension length in the left-right direction.
상부 프레임(110)의 모서리를 각각 측면 프레임(120)과 연속된다.The corners of the upper frame 110 are continuous with the side frame 120 , respectively.
상부 프레임(110)은 복수 개 구비될 수 있다. 이때, 복수 개의 상부 프레임(110)은 서로 이격된다.A plurality of upper frames 110 may be provided. At this time, the plurality of upper frames 110 are spaced apart from each other.
측면 프레임(120)은 프레임부(10)의 측면, 도시된 실시 예에서, 좌측, 우측, 전방 측 및 후방 측을 형성한다. 측면 프레임(120)은 프레임부(10)의 내부에 형성된 공간을 좌측, 우측, 전방 측 및 후방 측에서 덮는다.The side frame 120 forms the side, in the illustrated embodiment, the left, right, front side and rear side of the frame portion 10 . The side frame 120 covers the space formed inside the frame part 10 from the left side, the right side, the front side, and the rear side.
도시된 실시 예에서, 측면 프레임(120)은 상하 방향으로 연장되는 기둥 형상으로 형성된다.In the illustrated embodiment, the side frame 120 is formed in the shape of a column extending in the vertical direction.
측면 프레임(120)의 연장 방향의 일 모서리는 상부 프레임(110)과 연속된다. 도시된 실시 예에서, 측면 프레임(120)의 상측 모서리는 상부 프레임(110)과 연속된다.One edge of the side frame 120 in the extending direction is continuous with the upper frame 110 . In the illustrated embodiment, the upper edge of the side frame 120 is continuous with the upper frame 110 .
측면 프레임(120)은 복수 개 구비될 수 있다. 이때, 복수 개의 측면 프레임(120)은 서로 이격된다. 도시된 실시 예에서, 세 개의 측면 프레임(120)이 좌우 방향을 따라 나란하게 배치된다.A plurality of side frames 120 may be provided. At this time, the plurality of side frames 120 are spaced apart from each other. In the illustrated embodiment, the three side frames 120 are arranged side by side along the left and right direction.
측면 프레임(120)의 외주에는 통전주(60)를 수용할 수 있는 통전주 삽입구가 형성된다. 도시된 실시 예에서, 측면 프레임(120)의 전방 측 외주면에는 통전주(60)를 수용할 수 있는 통전주 삽입구가 형성된다.On the outer periphery of the side frame 120 is formed an energized pole insert that can accommodate the energized pole (60). In the illustrated embodiment, the energized pole insert that can accommodate the energized pole 60 is formed on the outer peripheral surface of the front side of the side frame 120 .
통전주 삽입구는 통전주(60)가 측면 프레임(120)의 외부 및 내부 공간과 상통되도록 통전주(60)를 수용한다.The energized pole insertion hole accommodates the energized pole 60 so that the energized pole 60 communicates with the external and internal spaces of the side frame 120 .
통전주 삽입구의 내부에는 통전주(60)를 수용할 수 있는 공간이 형성된다. 즉, 통전주(60)는 통전주 삽입구에 관통 결합된다.A space for accommodating the energized pole 60 is formed inside the energized pole insert. That is, the energized pole 60 is coupled through the energized pole insertion hole.
통전주 삽입구는 통전주(60)의 연장 방향과 동일한 방향으로 연장된다. 도시된 실시 예에서, 통전주 삽입구는 전후 방향으로 연장된다.The energized pole insertion hole extends in the same direction as the extension direction of the energized pole 60 . In the illustrated embodiment, the energized pole insert is extended in the front-rear direction.
통전주 삽입구는 통전주(60)를 감싸도록 배치된다. 즉, 통전주(60)는 통전주 삽입구에 의해 둘러싸인다.The energized pole insert is disposed to surround the energized pole 60 . That is, the energized pole 60 is surrounded by the energized pole insertion port.
통전주 삽입구는 복수 개 구비될 수 있다. 통전주 삽입구의 개수는 측면 프레임(120)에 결합되는 통전주(60)의 개수와 동일하다.A plurality of energized pole inserts may be provided. The number of energized pole inserts is the same as the number of energized poles 60 coupled to the side frame 120 .
(2) 메커니즘(mechanism) 조립체(20)의 설명(2) Description of the mechanism assembly 20
이하에서는, 도 1을 참조하여 메커니즘 조립체(20)에 대하여 설명한다.Hereinafter, the mechanism assembly 20 will be described with reference to FIG. 1 .
메커니즘 조립체(20)는 진공 차단기(1)가 투입 상태 또는 트립 상태로 작동되도록 제어한다. 메커니즘 조립체(20)는 회전 조작되어 진공 차단기(1)와 외부의 전원 또는 부하 사이의 통전 상태를 형성하거나, 통전을 차단한다.The mechanism assembly 20 controls the vacuum circuit breaker 1 to operate in the closed state or tripped state. The mechanism assembly 20 is rotated to form a energized state between the vacuum circuit breaker 1 and an external power source or load, or cut off energization.
메커니즘 조립체(20)는 프레임부(10)의 내부에 형성된 상기 공간에 수용된다. 메커니즘 조립체(20)는 상기 공간에서 회전 작동될 수 있다.The mechanism assembly 20 is accommodated in the space formed inside the frame portion 10 . The mechanism assembly 20 may be rotatably actuated in the space.
메커니즘 조립체(20)는 링크부 및 스프링부와 연결된다. 메커니즘 조립체(20)는 링크부 및 스프링부 중 어느 하나 이상과 함께 회전 작동될 수 있다.The mechanism assembly 20 is connected to the link portion and the spring portion. The mechanism assembly 20 may be rotationally operated together with any one or more of the link part and the spring part.
링크부는 메커니즘 조립체(20)가 작동됨에 따라 회전되어, 진공 차단기(1)를 투입 상태 또는 트립 상태로 작동시킨다.The link portion is rotated as the mechanism assembly 20 is actuated, thereby operating the vacuum circuit breaker 1 in the closed state or the tripped state.
링크부는 메커니즘 조립체(20)와 연결된다. 링크부는 메커니즘 조립체(20)의 구성 요소가 회전됨에 따라 함께 회전될 수 있다.The link portion is connected to the mechanism assembly 20 . The linkage may rotate with the components of the mechanism assembly 20 as they rotate.
링크부는 프레임부(10)에 회전 가능하게 결합된다.The link part is rotatably coupled to the frame part 10 .
링크부는 메커니즘 조립체(20)와 연결된 메인 샤프트의 수평 방향 직선 운동을 지면에 대한 수직 방향의 직선 운동으로 변환한다.The link unit converts a horizontal linear motion of the main shaft connected to the mechanism assembly 20 into a vertical linear motion with respect to the ground.
링크부의 일 단은 상기 메인 샤프트의 끝단에 연결된다. 또한, 링크부의 타 단은 스프링부에 결합된다.One end of the link unit is connected to an end of the main shaft. In addition, the other end of the link portion is coupled to the spring portion.
스프링부는 링크부가 회전됨에 따라 직선 운동되어, VI 고정 접점 및 VI 가동 접점을 접촉 및 이격시킨다.The spring part moves linearly as the link part rotates to contact and separate the VI fixed contact and VI movable contact.
스프링부는 링크부와 연결된다. 스프링부는 링크부가 회전됨에 따라 직선으로 운동될 수 있다.The spring part is connected to the link part. The spring part may move in a straight line as the link part rotates.
또한, 스프링부는 VI와 연결된다. 구체적으로, 스프링부는 VI 가동 접점과 연결된다. 따라서, 스프링부가 이동됨에 따라, VI 가동 접점이 함께 이동된다.In addition, the spring part is connected to the VI. Specifically, the spring portion is connected to the VI movable contact. Accordingly, as the spring portion is moved, the VI movable contact is moved together.
VI(Vacuum Interrupter)는 프레임부(10)의 내부에 형성된 상기 공간에 수용되어, 전류의 통전을 허용하거나 차단한다. 구체적으로, VI는 VI 고정 접점 및 VI 가동 접점이 접촉되어 전류의 통전을 허용하거나, VI 고정 접점 및 VI 가동 접점이 이격되어 전류의 통전을 차단한다.A vacuum interrupter (VI) is accommodated in the space formed inside the frame part 10 to allow or block the flow of current. Specifically, VI allows the passing of current when the VI fixed contact and the VI movable contact are in contact, or the VI fixed contact and the VI movable contact are spaced apart to cut off the current.
VI는 스프링부와 결합된다. VI의 구성 요소는 스프링부가 운동됨에 따라, 접촉 또는 분리될 수 있다.VI is coupled to the spring portion. The components of VI can be contacted or separated as the spring part is moved.
VI는 VI 고정 접점 및 VI 가동 접점을 포함한다.VI includes VI fixed contact and VI movable contact.
VI 고정 접점은 외부의 전원 또는 부하와 통전 가능하게 연결된다. VI 고정 접점을 통해, 진공 차단기(1)가 외부의 전원 또는 부하와 통전 가능하게 연결될 수 있다.The VI fixed contact is connected to an external power source or load so that it can conduct electricity. Through the VI fixed contact, the vacuum circuit breaker 1 can be electrically connected to an external power source or load.
VI 고정 접점은 측면 프레임(120)의 내부에 수용된다. 즉, VI 고정 접점은 측면 프레임(120)에 둘러싸인다.The VI fixed contact is accommodated inside the side frame 120 . That is, the VI fixed contact is surrounded by the side frame 120 .
VI 고정 접점은 VI 가동 접점과 접촉 또는 이격됨으로써, 진공 차단기(1)의 내부와 외부의 통전을 인가하거나 차단할 수 있다.The VI fixed contact is in contact with or spaced apart from the VI movable contact, so that it is possible to apply or cut off the conduction between the inside and the outside of the vacuum circuit breaker (1).
VI 고정 접점은 프레임부(10)의 내부 공간에서 이동되지 않는다. 따라서, VI 고정 접점과 VI 가동 접점의 접촉 및 이격은 VI 가동 접점의 이동에 의해 달성된다.The VI fixed contact does not move in the inner space of the frame portion 10 . Accordingly, the contact and separation of the VI fixed contact and the VI movable contact is achieved by the movement of the VI movable contact.
VI 가동 접점은 외부의 전원 또는 부하와 통전 가능하게 연결된다. 또한, VI 가동 접점은 VI 고정 접점과 통전 가능하게 연결되거나 분리된다.VI movable contact is connected to an external power source or load so that it can conduct electricity. Also, the VI movable contact is energably connected to or disconnected from the VI fixed contact.
VI 가동 접점은 측면 프레임(120)의 내부에 수용된다. 즉, VI 가동 접점은 측면 프레임(120)에 둘러싸인다.The VI movable contact is accommodated inside the side frame 120 . That is, the VI movable contact is surrounded by the side frame 120 .
VI 가동 접점은 직선 운동되며 VI 고정 접점과 접촉 또는 이격될 수 있다. 구체적으로, VI 가동 접점은 VI 고정 접점을 향하는 방향 또는 VI 고정 접점에서 멀어지는 방향으로 운동될 수 있다.The VI movable contact is linearly moved and can be in contact with or separated from the VI fixed contact. Specifically, the VI movable contact may be moved in a direction toward the VI stationary contact or away from the VI stationary contact.
VI 가동 접점이 VI 고정 접점을 향하는 방향으로 운동될 때, VI 가동 접점과 VI 고정 접점이 접촉된다. 이때, 외부의 전원 및 부하 간 통전이 인가될 수 있다.When the VI movable contact is moved in the direction toward the VI fixed contact, the VI movable contact and the VI fixed contact are in contact. At this time, current may be applied between the external power source and the load.
또한, VI 가동 접점이 VI 고정 접접에서 멀어지는 방향으로 운동될 때, VI 가동 접점과 VI 고정 접점은 서로 분리된다. 이때, 외부의 전원 및 부하 간 통전은 차단된다.Also, when the VI movable contact is moved away from the VI stationary contact, the VI movable contact and the VI stationary contact are separated from each other. At this time, electricity between the external power source and the load is cut off.
(3) 통전주의 설명(3) Explanation of holistic caution
이하에서는, 도 1 내지 도 16을 참조하여 통전주(60)에 대하여 설명한다.Hereinafter, the energized pole 60 will be described with reference to FIGS. 1 to 16 .
통전주(60)는 VI와 외부의 전원 또는 부하를 통전시킨다. 이를 위해, 통전주(60)는 VI와 외부의 전원 또는 부하와 통전 가능하게 연결된다.The energizing pole 60 energizes VI and an external power source or load. To this end, the energizing pole 60 is energably connected to the VI and an external power source or load.
통전주(60)는 측면 프레임(120)의 일 측에 관통 결합된다. 구체적으로, 통전주(60)는 측면 프레임(120)의 통전주 삽입구에 관통 결합된다.The energized pole 60 is through-coupled to one side of the side frame 120 . Specifically, the energized pole 60 is coupled through the energized pole insertion hole of the side frame 120 .
통전주(60)는 복수 개 구비될 수 있다. 도시된 실시 예에서, 세 쌍의 통전주(60)가 좌우 방향으로 나란하게 배치된다.A plurality of energized poles 60 may be provided. In the illustrated embodiment, three pairs of energized poles 60 are arranged side by side in the left and right direction.
통전주(60)의 개수는, 본 발명의 진공 차단기(1)가 구비되는 전력 계통의 종류에 따라 결정될 수 있다. 일 실시 예에서, 진공 차단기(1)는 R상, S상 및 T상의 3상 회로를 이용하는 전력 계통에 구비된다. 이에 따라, 통전주(60) 또한 3상 회로에 맞추어 세 쌍 구비된다.The number of energizing poles 60 may be determined according to the type of power system in which the vacuum circuit breaker 1 of the present invention is provided. In one embodiment, the vacuum circuit breaker 1 is provided in a power system using a three-phase circuit of R-phase, S-phase and T-phase. Accordingly, three pairs of energizing poles 60 are also provided in accordance with the three-phase circuit.
도시된 실시 예에서, 통전주(60)는 하우징부(610), 플레이트부(620), 통전주 터미널(terminal)(630), 결합 부재(640) 및 튤립 접촉자(650)를 포함한다.In the illustrated embodiment, the energized pole 60 includes a housing portion 610 , a plate portion 620 , a energized pole terminal 630 , a coupling member 640 , and a tulip contact 650 .
하우징부(610)는 통전주(60)의 외관을 형성한다. 하우징부(610)는 통전주(60)가 외부로 노출되는 부분이다.The housing part 610 forms the exterior of the energized pole 60 . The housing portion 610 is a portion to which the energized pole 60 is exposed to the outside.
하우징부(610)는 일 방향으로 연장되는 원기둥 형상으로 형성된다. 도시된 실시 예에서, 하우징부(610)는 전후 방향으로 연장되는 원기둥 형상으로 형성된다.The housing part 610 is formed in a cylindrical shape extending in one direction. In the illustrated embodiment, the housing part 610 is formed in a cylindrical shape extending in the front-rear direction.
하우징부(610)의 내부에는 중공이 형성된다. 상기 중공에는 통전주 터미널(630) 및 튤립 접촉자(650)의 일부가 수용될 수 있다. 즉, 통전주 터미널(630) 및 튤립 접촉자(650)의 일부는 하우징부(610)에 의해 둘러싸인다.A hollow is formed inside the housing part 610 . A portion of the energized pole terminal 630 and the tulip contact 650 may be accommodated in the hollow. That is, a portion of the energized pole terminal 630 and the tulip contactor 650 is surrounded by the housing unit 610 .
하우징부(610)는 절연성 소재로 형성될 수 있다. 예를 들어, 하우징부(610)는 합성 수지 소재로 형성될 수 있다. 따라서, 통전주(60)의 내부와 외부가 임의로 통전되는 것이 방지될 수 있다.The housing 610 may be formed of an insulating material. For example, the housing unit 610 may be formed of a synthetic resin material. Accordingly, it can be prevented that the inside and outside of the energized pole 60 is arbitrarily energized.
플레이트부(620)는 통전주(60)가 VI와 직접적으로 결합되는 부분이다. 구체적으로, 플레이트부(620)는 VI와 통전 가능하게 결합된다.The plate portion 620 is a portion in which the energized pole 60 is directly coupled to the VI. Specifically, the plate part 620 is electrically coupled to the VI.
플레이트부(620)는 판 형상으로 형성된다. 도시된 실시 예에서, 플레이트부(620)는 전후 방향의 연장 길이가 좌우 방향의 연장 길이보다 긴 직사각형의 판 형상으로 형성된다.The plate part 620 is formed in a plate shape. In the illustrated embodiment, the plate part 620 is formed in a rectangular plate shape in which an extension length in the front-rear direction is longer than an extension length in the left-right direction.
플레이트부(620)는 전도성 소재로 형성될 수 있다. 예를 들어, 플레이트부(620)는 구리(Cu), 은(Ag) 등으로 형성될 수 있다.The plate part 620 may be formed of a conductive material. For example, the plate part 620 may be formed of copper (Cu), silver (Ag), or the like.
도시된 실시 예에서, 플레이트부(620)에는 결합공이 형성된다.In the illustrated embodiment, the plate portion 620 is formed with a coupling hole.
상기 결합공은 플레이트부(620)와 VI 간 결합을 위한 부재가 관통 결합되는 공간이다. 상기 결합공은 복수 개 구비될 수 있다.The coupling hole is a space through which a member for coupling between the plate part 620 and VI is coupled. A plurality of coupling holes may be provided.
플레이트부(620)의 일 단에는 통전주 터미널(630)이이 결합된다. 도시된 실시 예에서, 플레이트부(620)의 전방 측 일 단에는 통전주 터미널(630)이 결합된다.At one end of the plate portion 620, the energized pole terminal 630 is coupled. In the illustrated embodiment, the energized pole terminal 630 is coupled to one end of the front side of the plate portion 620 .
통전주 터미널(630)은 플레이트부(620)와 튤립 접촉자(650)를 통전시킨다. 이를 위해, 통전주 터미널(630)은 플레이트부(620) 및 튤립 접촉자(650)에 각각 통전 가능하게 결합된다.The energized terminal 630 energizes the plate portion 620 and the tulip contact 650 . To this end, the energizing terminal 630 is energably coupled to the plate portion 620 and the tulip contact 650, respectively.
통전주 터미널(630)은 일 방향으로 연장되는 판 형상으로 형성된다. 도시된 실시 예에서, 통전주 터미널(630)은 전후 방향으로 연장되는 판 형상으로 형성된다. 그러나, 통전주 터미널(630)은 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다.The energized pole terminal 630 is formed in a plate shape extending in one direction. In the illustrated embodiment, the energized pole terminal 630 is formed in a plate shape extending in the front-rear direction. However, the energized pole terminal 630 is not limited to the illustrated shape, and may be formed in various shapes.
통전주 터미널(630)은 하우징부(610)의 내부에 형성되는 상기 공간에 수용된다. 즉, 통전주 터미널(630)은 하우징부(610)에 의해 둘러싸인다.The energized terminal 630 is accommodated in the space formed inside the housing portion (610). That is, the energized pole terminal 630 is surrounded by the housing portion (610).
통전주 터미널(630)의 일 단은 튤립 접촉자(650)와 결합된다. 도시된 실시 예에서, 통전주 터미널(630)의 전방 측 일 단은 튤립 접촉자(650)와 결합된다.One end of the energized pole terminal 630 is coupled to the tulip contactor (650). In the illustrated embodiment, one end of the front side of the energized pole terminal 630 is coupled to the tulip contact (650).
통전주 터미널(630)은 결합 부재(640)에 의해 튤립 접촉자(650)와 결합된다.The energized pole terminal 630 is coupled to the tulip contact 650 by a coupling member 640 .
결합 부재(640)는 통전주 터미널(630) 및 튤립 접촉자(650) 사이에 배치되어, 통전주 터미널(630) 및 튤립 접촉자(650)에 각각 결합된다. 이에 따라, 통전주 터미널(630) 및 튤립 접촉자(650)의 결합이 보다 견고해질 수 있다.The coupling member 640 is disposed between the energized pole terminal 630 and the tulip contactor 650 and is coupled to the energized pole terminal 630 and the tulip contactor 650 , respectively. Accordingly, the coupling of the energized pole terminal 630 and the tulip contactor 650 may be more robust.
결합 부재(640)는 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 일 실시 예에서, 결합 부재(640)는 통전주 터미널(630) 및 튤립 접촉자(650)에 볼트 너트 결합 방식으로 결합될 수 있다.The coupling member 640 is not limited to the illustrated shape, and may be formed in various shapes. In one embodiment, the coupling member 640 may be coupled to the energized pole terminal 630 and the tulip contact 650 in a bolt-nut coupling manner.
결합 부재(640)는 고강성의 소재로 형성될 수 있다. 예를 들어, 결합 부재(640)는 금속 소재로 형성될 수 있다.The coupling member 640 may be formed of a high-rigidity material. For example, the coupling member 640 may be formed of a metal material.
튤립 접촉자(650)는 진공 차단기(1)가 외부의 전원 또는 부하의 단자와 직접적으로 접촉되는 부분이다.The tulip contactor 650 is a part in which the vacuum circuit breaker 1 is in direct contact with the terminal of an external power source or load.
튤립 접촉자(650)는 외부의 전원 또는 부하의 단자와 통전 가능하게 연결된다. 이에 따라, 튤립 접촉자(650)에는 전류가 통전될 수 있다. 튤립 접촉자(650)에 전류가 통전될 때, 튤립 접촉자(650)에는 자계가 발생된다. 발생된 자계는 후술하는 결합 고리(720)를 통해 온도 감지 센서(70)에 전달된다. 이에 대한 상세한 설명은 후술한다.The tulip contactor 650 is electrically connected to a terminal of an external power source or load. Accordingly, current may pass through the tulip contactor 650 . When a current is passed through the tulip contactor 650 , a magnetic field is generated in the tulip contactor 650 . The generated magnetic field is transmitted to the temperature sensor 70 through a coupling ring 720 to be described later. A detailed description thereof will be provided later.
도시된 실시 예에서, 튤립 접촉자(650)는 고정 링(651), 접촉자 플레이트(652), 톱니 링(653) 및 튤립 핑거(654)를 포함한다.In the illustrated embodiment, the tulip contactor 650 includes a retaining ring 651 , a contactor plate 652 , a toothed ring 653 , and a tulip finger 654 .
고정 링(651)은 튤립 접촉자(650)와 외부의 전원 또는 부하의 단자 간 접촉력을 보다 증가시킨다.The fixing ring 651 further increases the contact force between the tulip contactor 650 and the terminal of an external power source or load.
고정 링(651)은 튤립 핑거(654)의 외주면을 감싸도록 위치된다. 구체적으로, 고정 링(651)은 튤립 핑거(654)의 고정 링 체결홈(654a)에 위치된다.The fixing ring 651 is positioned to surround the outer circumferential surface of the tulip finger 654 . Specifically, the fixing ring 651 is located in the fixing ring fastening groove 654a of the tulip finger 654 .
고정 링(651)은 링(ring) 형상으로 형성된다. 도시된 실시 예에서, 고정 링(651)의 중심과 튤립 핑거(654)의 중심은 동일하게 형성된다.The fixing ring 651 is formed in a ring shape. In the illustrated embodiment, the center of the fixing ring 651 and the center of the tulip finger 654 are formed to be the same.
고정 링(651)은 튤립 핑거(654)를 방사상 외측에서 지지하고, 튤립 핑거(654)의 임의 이탈을 방지한다.Retaining ring 651 radially outwardly supports tulip finger 654 and prevents any disengagement of tulip finger 654 .
일 실시 예에서, 고정 링(651)의 지름은 튤립 핑거(654)의 외경보다 작게 형성된다. 이에 따라, 튤립 핑거(654)와 외부 단자 간 접촉력이 보다 증대될 수 있다.In one embodiment, the diameter of the retaining ring 651 is formed to be smaller than the outer diameter of the tulip finger 654 . Accordingly, the contact force between the tulip finger 654 and the external terminal may be further increased.
고정 링(651)은 복수 개 구비될 수 있다. 도시된 실시 예에서, 네 개의 고정 링(651)이 전후 방향을 따라 나란하게 배치된다.A plurality of fixing rings 651 may be provided. In the illustrated embodiment, four fixing rings 651 are arranged side by side along the front-rear direction.
고정 링(651) 및 튤립 핑거(654)의 방사상 내측에는 접촉자 플레이트(652) 및 톱니 링(653)이 위치된다.A contact plate 652 and a toothed ring 653 are positioned radially inside the retaining ring 651 and the tulip finger 654 .
접촉자 플레이트(652)는 외부의 전원 또는 부하의 단자와 맞닿도록 위치된다.The contact plate 652 is positioned so as to be in contact with a terminal of an external power source or load.
접촉자 플레이트(652)는 통전주 터미널(630)과 통전 가능하게 연결되어, 외부의 전원 또는 부하와 통전주 터미널(630)은 통전시킨다.The contactor plate 652 is connected to the energized main terminal 630 and energized, and the external power source or load and the energized main terminal 630 are energized.
접촉자 플레이트(652)는 판 형상으로 형성될 수 있다. 도시된 실시 예에서, 접촉자 플레이트(652)는 원판 형상으로 형성된다. 그러나, 접촉자 플레이트(652)는 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 접촉자 플레이트(652)는 고리 형상으로 형성될 수 있다.The contact plate 652 may be formed in a plate shape. In the illustrated embodiment, the contact plate 652 is formed in a disk shape. However, the contact plate 652 is not limited to the illustrated shape, and may be formed in various shapes. For example, the contact plate 652 may be formed in a ring shape.
접촉자 플레이트(652)는 전도성 소재로 형성될 수 있다. 예를 들어, 접촉자 플레이트(652)는 구리(Cu), 은(Ag) 등으로 형성될 수 있다.The contact plate 652 may be formed of a conductive material. For example, the contact plate 652 may be formed of copper (Cu), silver (Ag), or the like.
톱니 링(653)은 튤립 핑거(654)의 비틀림이나 유동을 방지한다.The toothed ring 653 prevents twisting or flow of the tulip finger 654 .
톱니 링(653)은 튤립 핑거(654)의 방사상 내측에 위치된다. 구체적으로, 톱니 링(653)은 튤립 핑거(654)의 내주면에 접한다. 이에 따라, 톱니 링(653)은 튤립 핑거(654)를 방사상 내측에서 지지할 수 있다.The toothed ring 653 is positioned radially inside the tulip finger 654 . Specifically, the toothed ring 653 is in contact with the inner circumferential surface of the tulip finger 654 . Accordingly, the toothed ring 653 can support the tulip fingers 654 radially inward.
톱니 링(653)은 고강성의 소재로 형성될 수 있다. 예를 들어, 톱니 링(653)은 금속 소재로 형성될 수 있다.The toothed ring 653 may be formed of a high-rigidity material. For example, the toothed ring 653 may be formed of a metal material.
톱니 링(653)은 복수 개 구비될 수 있다. 도시된 실시 예에서, 두 개의 톱니 링(653)은 전후 방향으로 나란하게 배치된다.A plurality of toothed rings 653 may be provided. In the illustrated embodiment, the two toothed rings 653 are arranged side by side in the front-rear direction.
톱니 링(653)은 외주면에 복수 개의 톱니(653a)가 형성된 고리 형상으로 형성된다. 이때, 톱니 링(653)의 내경은 튤립 핑거(654)의 내경보다 작게 형성된다.The toothed ring 653 is formed in a ring shape in which a plurality of teeth 653a are formed on the outer circumferential surface. At this time, the inner diameter of the toothed ring 653 is formed smaller than the inner diameter of the tulip finger 654 .
톱니(653a)는 톱니 링(653)의 방사상 외측을 향해 돌출 형성된다.The teeth 653a are formed to protrude radially outward of the toothed ring 653 .
이웃하는 두 개의 톱니(653a) 사이에는 튤립 핑거(654)가 결합된다. 구체적으로, 튤립 핑거(654)의 톱니 체결홈(654b)이 이웃하는 투 개의 톱니(653a) 사이의 함몰부와 맞물리며 결합된다.A tulip finger 654 is coupled between two adjacent teeth 653a. Specifically, the toothed fastening groove 654b of the tulip finger 654 is engaged with the depression between the two adjacent teeth 653a.
도시된 실시 예에서, 톱니(653a)는 사각형의 단면이 전후 방향으로 연장되어 형성된다. 그러나, 톱니(653a)는 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 톱니(653a)는 삼각형의 단면이 일 방향으로 연장되어 형성될 수 있다.In the illustrated embodiment, the teeth 653a are formed so that a cross-section of a rectangle extends in the front-rear direction. However, the teeth 653a are not limited to the illustrated shape, and may be formed in various shapes. For example, the sawtooth 653a may be formed by extending a triangular cross-section in one direction.
톱니(653a)는 복수 개 구비될 수 있다. 이때, 톱니(653a)의 개수는 튤립 핑거(654)의 개수와 동일하게 형성된다.A plurality of teeth 653a may be provided. At this time, the number of teeth 653a is formed to be the same as the number of tulip fingers 654 .
튤립 핑거(654)는 외부의 전원 또는 부하의 단자와 진공 차단기(1) 간 접촉력을 증가시킨다.The tulip finger 654 increases the contact force between the terminal of an external power source or load and the vacuum circuit breaker 1 .
튤립 핑거(654)는 복수 개 구비될 수 있다. 복수 개의 튤립 핑거(654)는 가상의 원의 원주 방향을 따라 배치된다. 도시된 실시 예에서, 복수 개의 튤립 핑거(654)는 모두 동일한 형상으로 형성된다.A plurality of tulip fingers 654 may be provided. The plurality of tulip fingers 654 are arranged along the circumferential direction of the virtual circle. In the illustrated embodiment, the plurality of tulip fingers 654 are all formed in the same shape.
튤립 핑거(654)의 방사상 외측에는 고정 링(651)이 결합된다. 또한, 튤립 핑거(654)의 방사상 내측에는 접촉자 플레이트(652) 및 톱니 링(653)이 결합된다. 정리하면, 튤립 핑거(654)의 방사상 외측은 고정 링(651)에 의해 지지되고, 방사상 내측은 접촉자 플레이트(652) 및 톱니 링(653)에 의해 지지된다.A retaining ring 651 is coupled to the radially outer side of the tulip finger 654 . In addition, a contact plate 652 and a toothed ring 653 are coupled to the radially inner side of the tulip finger 654 . In summary, the radially outer side of the tulip finger 654 is supported by the retaining ring 651 , and the radially inner side is supported by the contactor plate 652 and the toothed ring 653 .
튤립 핑거(654)는 일 방향으로 연장되는 판 형상으로 형성된다. 도시된 실시 예에서, 튤립 핑거(654)는 전후 방향으로 연장된다.The tulip fingers 654 are formed in a plate shape extending in one direction. In the illustrated embodiment, the tulip fingers 654 extend in an anterior-posterior direction.
도시된 실시 예에서, 튤립 핑거(654)의 상측에는 고정 링 체결홈(654a)이 형성되고, 하측에는 톱니 체결홈(654b) 및 단자 접촉부(654c)가 형성된다.In the illustrated embodiment, a fixing ring fastening groove 654a is formed on the upper side of the tulip finger 654 , and a toothed fastening groove 654b and a terminal contact part 654c are formed on the lower side of the tulip finger 654 .
고정 링 체결홈(654a)은 고정 링(651)이 결합 지점으로부터 임의로 이탈되는 것을 방지한다.The fixing ring fastening groove 654a prevents the fixing ring 651 from being arbitrarily separated from the coupling point.
고정 링 체결홈(654a)은 고정 링(651)과 인접하게 배치된다. 구체적으로, 고정 링 체결홈(654a)은 고정 링(651)의 내주면과 접한다.The fixing ring fastening groove 654a is disposed adjacent to the fixing ring 651 . Specifically, the fixing ring fastening groove 654a is in contact with the inner circumferential surface of the fixing ring 651 .
고정 링 체결홈(654a)은 튤립 핑거(654)의 상측 면에서 하측으로 함몰 형성된다.The fixing ring fastening groove 654a is recessed downward from the upper surface of the tulip finger 654 .
고정 링 체결홈(654a)은 고정 링(651)의 내주와 대응되는 형상으로 형성된다.The fixing ring fastening groove 654a is formed in a shape corresponding to the inner periphery of the fixing ring 651 .
고정 링 체결홈(654a)은 복수 개 구비될 수 있다. 이때, 고정 링 체결홈(654a)의 개수는 고정 링(651)의 개수와 동일하게 형성된다. 도시된 실시 예에서, 네 개의 고정 링 체결홈(654a)은 전후 방향으로 나란하게 배치된다.A plurality of fixing ring fastening grooves 654a may be provided. At this time, the number of the fixing ring fastening grooves 654a is formed to be the same as the number of the fixing rings 651 . In the illustrated embodiment, the four fixing ring fastening grooves 654a are arranged side by side in the front-rear direction.
톱니 체결홈(654b)은 톱니 링(653)과 튤립 핑거(654) 간 결합을 보다 견고하게 한다. 이를 위해, 톱니 체결홈(654b)은 톱니 링(653)과 맞물리며 결합된다.The toothed fastening groove 654b makes the coupling between the toothed ring 653 and the tulip finger 654 more robust. To this end, the toothed fastening groove (654b) is engaged with the toothed ring (653).
톱니 체결홈(654b)은 톱니 링(653)의 톱니(653a)와 인접하게 배치된다. 구체적으로, 톱니 체결홈(654b)은 이웃하는 두 개의 톱니(653a) 사이에 형성되는 함몰부와 접한다.The tooth fastening groove 654b is disposed adjacent to the tooth 653a of the tooth ring 653 . Specifically, the tooth fastening groove (654b) is in contact with the depression formed between the two adjacent teeth (653a).
톱니 체결홈(654b)은 튤립 핑거(654)의 하측 면에서 상측으로 함몰 형성된다.The toothed fastening groove 654b is recessed upwardly from the lower surface of the tulip finger 654 .
톱니 체결홈(654b)은 톱니(653a)와 대응되는 형상으로 형성된다.The tooth fastening groove 654b is formed in a shape corresponding to the tooth 653a.
톱니 체결홈(654b)은 복수 개 구비될 수 있다. 이때, 톱니 체결홈(654b)의 개수는 톱니 링(653)의 개수와 동일하게 형성된다. 도시된 실시 예에서, 두 개의 톱니 체결홈(654b)은 전후 방향으로 나란하게 배치된다.A plurality of toothed fastening grooves 654b may be provided. At this time, the number of the toothed fastening grooves 654b is formed to be the same as the number of the toothed ring 653 . In the illustrated embodiment, the two toothed fastening grooves 654b are arranged side by side in the front-rear direction.
단자 접촉부(654c)는 외부 단자의 외주면과 직접적으로 접하는 부분이다.The terminal contact portion 654c is a portion in direct contact with the outer peripheral surface of the external terminal.
단자 접촉부(654c)는 외부 단자의 외주면과 인접하게 배치된다. 또한, 단자 접촉부(654c)는 외부 단자를 방사상 외측에서 지지한다.The terminal contact portion 654c is disposed adjacent to the outer peripheral surface of the external terminal. Also, the terminal contact portion 654c supports the external terminal radially outward.
단자 접촉부(654c)는 튤립 핑거(654)의 하측 면에서 하측으로 돌출 형성된다.The terminal contact portion 654c is formed to protrude downward from the lower surface of the tulip finger 654 .
도시된 실시 예에서, 단자 접촉부(654c)는 라운드지게 돌출 형성된다. 구체적으로, 단자 접촉부(654c)는 반원 형상으로 돌출 형성된다.In the illustrated embodiment, the terminal contact portion 654c is formed to protrude roundly. Specifically, the terminal contact portion 654c is formed to protrude in a semicircular shape.
단자 접촉부(654c)는 복수 개 구비될 수 있다. 도시된 실시 예에서, 총 두 개의 단자 접촉부(654c)는 튤립 핑거(654)의 전방 측 및 후방 측 양 단에 각각 구비된다.A plurality of terminal contact portions 654c may be provided. In the illustrated embodiment, a total of two terminal contact portions 654c are respectively provided at both ends of the front side and the rear side of the tulip finger 654 .
2. 본 발명의 실시 예에 따른 온도 감지 센서의 설명2. Description of the temperature sensor according to the embodiment of the present invention
이하에서는, 도 17 내지 도 19를 참조하여 본 발명의 실시 예에 따른 온도 감지 센서(70)에 대하여 설명한다.Hereinafter, the temperature sensor 70 according to an embodiment of the present invention will be described with reference to FIGS. 17 to 19 .
온도 감지 센서(70)는 진공 차단기(1)의 특정 지점에 대한 온도를 실시간으로 측정하고 감시한다.The temperature sensor 70 measures and monitors the temperature at a specific point of the vacuum circuit breaker 1 in real time.
온도 감지 센서(70)는 프레임부(10)의 내부에 형성되는 상기 공간에 수용된다. 또한, 온도 감지 센서(70)는 통전주(60)의 하우징부(610)의 내부에 형성되는 상기 공간에 수용된다.The temperature sensor 70 is accommodated in the space formed inside the frame 10 . In addition, the temperature sensor 70 is accommodated in the space formed inside the housing portion 610 of the energized pole (60).
온도 감지 센서(70)는 튤립 접촉자(650)와 인접하게 배치된다. 구체적으로, 온도 감지 센서(70)는 튤립 핑거(654)의 일측 단부에 인접하게 배치된다.The temperature sensor 70 is disposed adjacent to the tulip contactor 650 . Specifically, the temperature sensor 70 is disposed adjacent to one end of the tulip finger 654 .
온도 감지 센서(70)는 튤립 핑거(654)와 결합되어, 튤립 핑거(654)의 특정 지점에 대한 온도를 측정할 수 있다.The temperature sensor 70 may be coupled to the tulip finger 654 to measure the temperature of a specific point of the tulip finger 654 .
온도 감지 센서(70)는 복수 개 구비될 수 있다. 복수 개의 온도 감지 센서(70)는 서로 다른 튤립 핑거(654)에 부착될 수 있다.A plurality of temperature sensor 70 may be provided. The plurality of temperature sensors 70 may be attached to different tulip fingers 654 .
도시된 실시 예에서, 온도 감지 센서(70)는 센서 본체(710) 및 결합 고리(720)를 포함한다.In the illustrated embodiment, the temperature sensor 70 includes a sensor body 710 and a coupling ring 720 .
*센서 본체(710)는 센싱 접점(711a)에서 수집된 온도 데이터를 처리하여 진공 차단기(1) 외부로 전달한다.* The sensor body 710 processes the temperature data collected from the sensing contact 711a and transmits it to the outside of the vacuum circuit breaker 1 .
센서 본체(710)는 튤립 접촉자(650)의 튤립 핑거(654)에 인접하게 배치된다. 도시된 실시 예에서, 센서 본체(710)는 튤립 핑거(654)의 후면에 인접하게 배치된다.The sensor body 710 is disposed adjacent to the tulip finger 654 of the tulip contactor 650 . In the illustrated embodiment, the sensor body 710 is disposed adjacent to the backside of the tulip fingers 654 .
또한, 센서 본체(710)는 튤립 핑거(654)와 결합된다. 이때, 센서 본체(710)는 결합 고리(720)에 의해 튤립 핑거(654)와 결합된다. 또한, 결합 고리(720)는 센서 본체(710)와 튤립 핑거(654)를 밀착 결합시킨다.Also, the sensor body 710 is coupled to the tulip finger 654 . At this time, the sensor body 710 is coupled to the tulip finger 654 by the coupling ring 720 . In addition, the coupling ring 720 closely couples the sensor body 710 and the tulip finger 654 .
센서 본체(710)의 일 측에는 결합 고리(720)가 결합된다. 도시된 실시 예에서, 센서 본체(710)의 전방 측에는 결합 고리(720)가 결합된다.A coupling ring 720 is coupled to one side of the sensor body 710 . In the illustrated embodiment, the coupling ring 720 is coupled to the front side of the sensor body 710 .
도시된 실시 예에서, 센서 본체(710)는 직육면체 형상으로 형성된다. 그러나, 센서 본체(710)는 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 센서 본체(710)는 구 형상으로 형성될 수 있다.In the illustrated embodiment, the sensor body 710 is formed in a rectangular parallelepiped shape. However, the sensor body 710 is not limited to the illustrated shape, and may be formed in various shapes. For example, the sensor body 710 may be formed in a spherical shape.
센서 본체(710)의 내부에는 다양한 구성 요소를 수용할 수 있는 공간이 형성된다. 일 실시 예에서, 상기 공간에는 전원부, 입력부, 데이터 처리부 및 통신부가 구비될 수 있다. 다른 실시 예에서, 상기 공간에는 배터리가 내장될 수 있다.A space for accommodating various components is formed inside the sensor body 710 . In an embodiment, the space may include a power supply unit, an input unit, a data processing unit, and a communication unit. In another embodiment, a battery may be embedded in the space.
도시된 실시 예에서, 센서 본체(710)는 본체 정면부(711)를 포함한다.In the illustrated embodiment, the sensor body 710 includes a body front portion 711 .
본체 정면부(711)는 센서 본체(710)의 전방 측 경계를 형성한다.The body front portion 711 forms a front side boundary of the sensor body 710 .
본체 정면부(711)에는 센싱 접점(711a)이 형성된다.A sensing contact 711a is formed on the body front portion 711 .
센싱 접점(711a)은 온도 감지 센서(70)가 직접적으로 온도를 측정하는 부분이다.The sensing contact 711a is a part where the temperature sensor 70 directly measures the temperature.
센싱 접점(711a)은 센서 본체(710) 내부에 구비되는 입력부로 온도 데이터를 전달한다.The sensing contact 711a transmits temperature data to an input unit provided inside the sensor body 710 .
센싱 접점(711a)은 튤립 핑거(654)를 향하는 센서 본체(710)의 일 면에 형성된다. 구체적으로, 센싱 접점(711a)은 튤립 핑거(654)를 향하는 센서 본체(710)의 일 면에서 튤립 핑거(654)를 향해 돌출되어 형성된다.The sensing contact 711a is formed on one surface of the sensor body 710 facing the tulip finger 654 . Specifically, the sensing contact 711a is formed to protrude toward the tulip finger 654 from one surface of the sensor body 710 facing the tulip finger 654 .
센싱 접점(711a)은 온도를 측정하고자 하는 특정 지점에 접촉된다. 도시된 실시 예에서, 센싱 접점(711a)은 튤립 핑거(654)의 후방 측에 접촉되어, 튤립 핑거(654)의 온도를 측정할 수 있다.The sensing contact 711a is in contact with a specific point at which temperature is to be measured. In the illustrated embodiment, the sensing contact 711a may contact the rear side of the tulip finger 654 to measure the temperature of the tulip finger 654 .
도시된 실시 예에서, 센싱 접점(711a)은 본체 정면부(711)에서 전방 측을 향해 돌출되어 형성된다. 상기 실시 예에서, 센싱 접점(711a)은 원형의 단면이 전방 측으로 연장되어 형성된다.In the illustrated embodiment, the sensing contact 711a is formed to protrude from the body front portion 711 toward the front side. In the above embodiment, the sensing contact 711a is formed with a circular cross-section extending toward the front side.
그러나, 센싱 접점(711a)은 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 센싱 접점(711a)은 다각형의 단면이 전방 측으로 연장되어 형성될 수 있다.However, the sensing contact 711a is not limited to the illustrated shape, and may be formed in various shapes. For example, the sensing contact 711a may be formed by extending a polygonal cross-section toward the front side.
센싱 접점(711a)은 복수 개 구비될 수 있다. 이때, 서로 다른 센싱 접점(711a)은 서로 이격되도록 배치되어, 서로 다른 지점의 온도를 측정한다.A plurality of sensing contacts 711a may be provided. At this time, the different sensing contacts 711a are disposed to be spaced apart from each other to measure temperatures at different points.
결합 고리(720)는 센서 본체(710)를 튤립 핑거(654)에 고정시킨다. 도시된 실시 예에서, 결합 고리(720)는 센서 본체(710)를 튤립 핑거(654)의 단자 접촉부(654c)에 고정시킨다.The coupling ring 720 fixes the sensor body 710 to the tulip finger 654 . In the illustrated embodiment, the coupling ring 720 fixes the sensor body 710 to the terminal contact portion 654c of the tulip finger 654 .
결합 고리(720)는 단자 접촉부(654c)를 둘러싸도록 배치된다. 즉, 결합 고리(720)에는 단자 접촉부(654c)가 삽입 결합된다.The coupling ring 720 is disposed to surround the terminal contact portion 654c. That is, the terminal contact portion 654c is inserted and coupled to the coupling ring 720 .
결합 고리(720)의 내주는 튤립 핑거(654)의 외주와 접하도록 배치된다. 일 실시 예에서, 결합 고리(720)의 내측 둘레는 단자 접촉부(654c)의 외측 둘레와 동일하게 형성될 수 있다.The inner periphery of the coupling ring 720 is disposed to be in contact with the outer periphery of the tulip finger 654 . In one embodiment, the inner circumference of the coupling ring 720 may be formed to be the same as the outer circumference of the terminal contact portion 654c.
결합 고리(720)의 일 단은 센서 본체(710)와 결합된다. 도시된 실시 예에서, 결합 고리(720)의 후방 측 일 단은 센서 본체(710)와 결합된다.One end of the coupling ring 720 is coupled to the sensor body 710 . In the illustrated embodiment, one end of the rear side of the coupling ring 720 is coupled to the sensor body (710).
도시된 실시 예에서, 결합 고리(720)는 U-형으로 형성된다. 그러나, 결합 고리(720)는 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 결합 고리(720)는 절곡선으로 형성될 수 있다.In the illustrated embodiment, the bonding ring 720 is formed in a U-shape. However, the coupling ring 720 is not limited to the illustrated shape, and may be formed in various shapes. For example, the bonding ring 720 may be formed in a curved line.
결합 고리(720)는 튤립 접촉자(650)에 발생된 자계의 통로 역할을 한다. 일 실시 예에서, 튤립 접촉자(650)에 발생된 자계는 결합 고리(720)를 통해 센서 본체(710)에 전달된다.The coupling ring 720 serves as a path for the magnetic field generated in the tulip contactor 650 . In an embodiment, the magnetic field generated in the tulip contactor 650 is transmitted to the sensor body 710 through the coupling ring 720 .
일 실시 예에서, 결합 고리(720)는 전도성 소재로 형성될 수 있다. 예를 들어, 결합 고리(720)는 구리(Cu), 은(Ag) 등으로 형성될 수 있다.In one embodiment, the coupling ring 720 may be formed of a conductive material. For example, the bonding ring 720 may be formed of copper (Cu), silver (Ag), or the like.
결합 고리(720)는 복수 개 구비될 수 있다. 예를 들어, 두 개의 결합 고리(720)가 상하 방향으로 나란하게 배치될 수 있다.A plurality of bonding rings 720 may be provided. For example, the two bonding rings 720 may be arranged side by side in the vertical direction.
도시된 실시 예에서, 결합 고리(720)는 고리 측면부(721) 및 고리 정면부(722)로 구분된다.In the illustrated embodiment, the coupling ring 720 is divided into a ring side portion 721 and a ring front portion 722 .
고리 측면부(721) 및 고리 정면부(722)는 각각 결합 고리(720)의 좌우 측 및 전방 측 경계를 형성한다.The ring side portion 721 and the ring front portion 722 form the left and right sides and the front side boundary of the coupling ring 720, respectively.
고리 측면부(721)는 고리 정면부(722)의 좌측 및 우측 단부로부터, 후방 측으로 연장된다. 즉, 고리 측면부(721)는 고리 정면부(722)의 좌측 또는 우측 단부와 연속된다.The ring side portion 721 extends from the left and right ends of the ring front portion 722 to the rear side. That is, the ring side portion 721 is continuous with the left or right end of the ring front portion 722 .
고리 측면부(721), 고리 정면부(722) 및 센서 본체(710) 사이에 형성되는 공간에는 튤립 삽입공(723)이 형성된다.A tulip insertion hole 723 is formed in the space formed between the ring side portion 721 , the ring front portion 722 , and the sensor body 710 .
튤립 삽입공(723)은 튤립 핑거(654)의 단자 접촉부(654c)가 관통 결합되는 공간이다. 이를 위해, 튤립 삽입공(723)의 단면적은 단자 접촉부(654c)의 단면적보다 크게 형성되는 것이 바람직하다.The tulip insertion hole 723 is a space through which the terminal contact portion 654c of the tulip finger 654 is coupled therethrough. To this end, it is preferable that the cross-sectional area of the tulip insertion hole 723 is larger than the cross-sectional area of the terminal contact portion 654c.
튤립 삽입공(723)은 튤립 핑거(654)의 일부를 둘러싸도록 배치된다. 구체적으로, 튤립 삽입공(723)은 단자 접촉부(654c)를 둘러싸도록 배치된다.The tulip insertion hole 723 is disposed to surround a portion of the tulip finger 654 . Specifically, the tulip insertion hole 723 is disposed to surround the terminal contact portion 654c.
도시된 실시 예에서, 튤립 삽입공(723)은 사각형의 단면이 상하 방향으로 연장되어 형성된다. 그러나, 튤립 삽입공(723)은 도시된 형상에 한정되지 않고, 다양한 형태로 형성될 수 있다. 예를 들어, 튤립 삽입공(723)은 타원형의 단면이 연장되어 형성될 수 있다.In the illustrated embodiment, the tulip insertion hole 723 is formed with a rectangular cross-section extending in the vertical direction. However, the tulip insertion hole 723 is not limited to the illustrated shape, and may be formed in various shapes. For example, the tulip insertion hole 723 may be formed by extending an elliptical cross section.
일 실시 예에서, 튤립 삽입공(723)은 단자 접촉부(654c)와 대응되는 형상으로 형성된다.In one embodiment, the tulip insertion hole 723 is formed in a shape corresponding to the terminal contact portion 654c.
다른 실시 예에서, 튤립 삽입공(723)의 내측 둘레는 단자 접촉부(654c)의 외측 둘레와 동일하게 형성된다.In another embodiment, the inner circumference of the tulip insertion hole 723 is formed to be the same as the outer circumference of the terminal contact portion 654c.
온도 감지 센서(70)는 전원부, 입력부, 데이터 처리부 및 통신부를 더 포함할 수 있다.The temperature sensor 70 may further include a power supply unit, an input unit, a data processing unit, and a communication unit.
일 실시 예에서, 전원부, 입력부, 데이터 처리부 및 통신부는 센서 본체(710)의 내부에 형성되는 공간에 수용될 수 있다.In an embodiment, the power supply unit, the input unit, the data processing unit, and the communication unit may be accommodated in a space formed inside the sensor body 710 .
전원부는 온도 감지 센서(70)가 작동되기 위한 동력원을 공급한다. 구체적으로, 전원부는 결합 고리(720)에서 전달받은 전기 에너지를 온도 감지 센서(70)의 동력원으로 공급한다. 이를 위해, 전원부는 튤립 접촉자(650)에서 발생된 자계를 결합 고리(720)를 통해 전달받는다.The power supply unit supplies a power source for operating the temperature sensor 70 . Specifically, the power supply unit supplies the electrical energy received from the coupling ring 720 as a power source of the temperature sensor 70 . To this end, the power supply unit receives the magnetic field generated from the tulip contactor 650 through the coupling ring 720 .
입력부는 센싱 접점(711a)에서 측정한 온도 데이터를 수집하고, 이를 데이터 처리부로 전달한다.The input unit collects temperature data measured by the sensing contact 711a and transmits it to the data processing unit.
데이터 처리부는 입력부로부터 전달받은 데이터를 정리한 뒤, 통신부로 전달한다.The data processing unit organizes the data received from the input unit, and then transmits it to the communication unit.
통신부는 데이터 처리부로부터 전달받은 데이터를 진공 차단기(1)의 외부로 송출한다. 사용자는 통신부에서 송출된 데이터를 확인하여, 진공 차단기(1)의 온도를 측정 및 감시할 수 있다.The communication unit transmits the data received from the data processing unit to the outside of the vacuum circuit breaker 1 . The user can check the data transmitted from the communication unit to measure and monitor the temperature of the vacuum circuit breaker 1 .
이상 본 발명의 바람직한 실시 예를 참조하여 설명하였지만, 본 발명은 상기 설명된 실시 예들의 구성에 한정되는 것이 아니다.Although the above has been described with reference to the preferred embodiment of the present invention, the present invention is not limited to the configuration of the above-described embodiments.
또한, 본 발명은, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해, 이하의 청구범위에 기재된 본 발명의 사상 및 영역을 벗어나지 않는 범위 내에서 다양하게 수정 및 변경될 수 있다.In addition, the present invention may be variously modified and changed by those of ordinary skill in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below.
더 나아가, 상기 실시 예들은 다양한 변형이 이루어질 수 있도록 각 실시 예들의 전부 또는 일부가 선택적으로 조합되어 구성될 수 있다.Furthermore, the embodiments may be configured by selectively combining all or part of each embodiment so that various modifications can be made.

Claims (9)

  1. 외부의 전원 또는 부하와 통전 가능하게 연결되고, 가상의 원의 원주 방향을 따라 배치되는 복수 개의 튤립 핑거; 및a plurality of tulip fingers connected to an external power source or a load so as to be energized and disposed along a circumferential direction of a virtual circle; and
    상기 튤립 핑거와 인접하게 배치되는 온도 감지 센서를 포함하고,a temperature sensor disposed adjacent to the tulip finger;
    상기 온도 감지 센서는,The temperature sensor is
    상기 튤립 핑거의 특정 지점과 접촉되어 상기 특정 지점의 온도를 측정할 수 있는 센싱 접점이 일 면에 형성되고, 내부에 입력부가 수용되는 센서 본체; 및a sensor body having a sensing contact in contact with a specific point of the tulip finger to measure the temperature of the specific point, the sensor body having an input unit accommodated therein; and
    상기 튤립 핑거를 향하는 상기 센서 본체의 일 면과 결합되고, 상기 튤립 핑거의 일부를 둘러싸는 튤립 삽입공이 형성되는 결합 고리를 포함하는,A coupling ring coupled to one surface of the sensor body facing the tulip finger and having a tulip insertion hole surrounding a portion of the tulip finger is formed,
    진공 차단기.vacuum breaker.
  2. 제1항에 있어서,According to claim 1,
    상기 튤립 핑거는,The tulip finger,
    상기 외부의 전원 또는 부하의 단자를 향하는 일 면으로부터 상기 단자를 향해 돌출 형성되어, 상기 단자와 접하는 단자 접촉부를 포함하고,and a terminal contact portion protruding toward the terminal from one surface facing the terminal of the external power source or load, and in contact with the terminal,
    상기 튤립 삽입공에는,In the tulip insertion hole,
    상기 단자 접촉부가 관통 결합되는,The terminal contact portion is coupled through,
    진공 차단기.vacuum breaker.
  3. 제2항에 있어서,3. The method of claim 2,
    상기 튤립 삽입공은,The tulip insertion hole,
    상기 단자 접촉부와 대응되는 형상으로 형성되는,formed in a shape corresponding to the terminal contact portion,
    진공 차단기.vacuum breaker.
  4. 제3항에 있어서,4. The method of claim 3,
    상기 튤립 삽입공은,The tulip insertion hole,
    내측 둘레가 상기 단자 접촉부의 외측 둘레와 동일하게 형성되는,an inner periphery formed to be the same as an outer perimeter of the terminal contact portion;
    진공 차단기.vacuum breaker.
  5. 제4항에 있어서,5. The method of claim 4,
    상기 온도 감지 센서는,The temperature sensor is
    동력원을 공급하고, 상기 센서 본체의 내부에 내장되는 전원부를 포함하는,Supplying a power source, including a power supply unit built in the interior of the sensor body,
    진공 차단기.vacuum breaker.
  6. 제5항에 있어서,6. The method of claim 5,
    상기 전원부는,The power supply unit,
    상기 결합 고리와 통전 가능하게 연결되고, 상기 튤립 핑거에서 발생된 자계를 상기 결합 고리를 통해 전달받아 전기 에너지를 생성하는,It is connected to the coupling ring and energized, and receives the magnetic field generated from the tulip finger through the coupling ring to generate electrical energy,
    진공 차단기.vacuum breaker.
  7. 제5항에 있어서,6. The method of claim 5,
    상기 센서 본체의 내부에는,Inside the sensor body,
    상기 전원부에 통전 가능하게 연결되는 배터리가 내장되는,A battery that is energably connected to the power supply is built-in,
    진공 차단기.vacuum breaker.
  8. 제1항에 있어서,According to claim 1,
    상기 온도 감지 센서는 복수 개 구비될 수 있고,The temperature sensor may be provided in plurality,
    복수 개의 상기 온도 감지 센서는,A plurality of the temperature sensor,
    서로 이격되어, 서로 다른 지점의 온도를 측정하는,spaced apart from each other to measure the temperature at different points,
    진공 차단기.vacuum breaker.
  9. 제1항에 있어서,According to claim 1,
    상기 입력부는,The input unit,
    상기 센싱 접점으로부터 온도 데이터를 수집하고,collect temperature data from the sensing junction;
    상기 온도 감지 센서는,The temperature sensor is
    상기 입력부로부터 온도 데이터를 전달받아 정리하는 데이터 처리부; 및a data processing unit for receiving and organizing temperature data from the input unit; and
    상기 데이터 처리부에서 정리된 데이터를 외부로 송출하는 통신부를 포함하는,Comprising a communication unit for transmitting the data organized by the data processing unit to the outside,
    진공 차단기.vacuum breaker.
PCT/KR2022/000845 2021-03-31 2022-01-17 Vacuum circuit breaker WO2022211234A1 (en)

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KR1020210042103A KR102674084B1 (en) 2021-03-31 2021-03-31 Vacuum circuit breaker
KR10-2021-0042103 2021-03-31

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WO2022211234A1 true WO2022211234A1 (en) 2022-10-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150057107A (en) * 2013-11-18 2015-05-28 엘에스산전 주식회사 Main Circuit Part of Vacuum Circuit Breaker with Self Powered Temperature Sensor Assembly
CN106295736A (en) * 2015-09-30 2017-01-04 杭州凯源电子有限公司 A kind of flexible passive label, passive flexible temperature measuring equipment and wireless power networking temp measuring system
CN209266992U (en) * 2018-12-14 2019-08-16 湖南长高成套电器有限公司 Intelligent switchboard system
CN109036991B (en) * 2018-07-27 2019-09-10 国网湖南省电力有限公司 Contact of breaker, breaker and high-tension switch cabinet
CN212779657U (en) * 2020-09-03 2021-03-23 武汉泽塔电气科技有限公司 Temperature sensor used on plum blossom contact

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101773306B1 (en) * 2016-12-19 2017-08-31 신승현 Apparatus for sensing the temperature of a switch board

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150057107A (en) * 2013-11-18 2015-05-28 엘에스산전 주식회사 Main Circuit Part of Vacuum Circuit Breaker with Self Powered Temperature Sensor Assembly
CN106295736A (en) * 2015-09-30 2017-01-04 杭州凯源电子有限公司 A kind of flexible passive label, passive flexible temperature measuring equipment and wireless power networking temp measuring system
CN109036991B (en) * 2018-07-27 2019-09-10 国网湖南省电力有限公司 Contact of breaker, breaker and high-tension switch cabinet
CN209266992U (en) * 2018-12-14 2019-08-16 湖南长高成套电器有限公司 Intelligent switchboard system
CN212779657U (en) * 2020-09-03 2021-03-23 武汉泽塔电气科技有限公司 Temperature sensor used on plum blossom contact

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