WO2022177260A1 - 전력 절감 장치 - Google Patents
전력 절감 장치 Download PDFInfo
- Publication number
- WO2022177260A1 WO2022177260A1 PCT/KR2022/002203 KR2022002203W WO2022177260A1 WO 2022177260 A1 WO2022177260 A1 WO 2022177260A1 KR 2022002203 W KR2022002203 W KR 2022002203W WO 2022177260 A1 WO2022177260 A1 WO 2022177260A1
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- WO
- WIPO (PCT)
- Prior art keywords
- toroidal core
- voltage
- case
- core
- power saving
- Prior art date
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- 238000000034 method Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000033228 biological regulation Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2895—Windings disposed upon ring cores
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F30/00—Fixed transformers not covered by group H01F19/00
- H01F30/06—Fixed transformers not covered by group H01F19/00 characterised by the structure
- H01F30/16—Toroidal transformers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/025—Constructional details relating to cooling
Definitions
- the present invention is a power saving device that can save power by maintaining the output voltage constant even if the input voltage changes. It relates to a power saving device that can save.
- a power saving device is a device that reduces the amount of electrical energy used while performing the same task of an electric device.
- the power factor represents the ratio between the active power and the apparent power in an AC circuit.
- Conventional AC power control and conversion devices include linear voltage converters such as single-winding, multi-winding transformers or reactors, and power control devices by phase control or PWM control using switching semiconductor devices, but general Trans-type power control devices are too bulky and heavy to be practical, and switching control-type power control devices with electronic circuits have poor durability, reliability, and economic feasibility. has been discussed
- the British patent (GB2043971A) "constant voltage control device" is based on the primary side coil polarity reversing switching method, and delicate constant voltage control is impossible. All of the secondary coils connected in series with , turn into circuit resistance, which may cause overheating due to heat loss.
- the present invention relates to the problems of the conventional transformer-type power control device that is too large in volume and weight to be practical, and the durability, reliability, and economy are not good.
- the purpose of this is to solve the problem of the power control system of this method, and it is possible to save power by stably regulating the supplied voltage through the toroidal core, the multi-channel switch and the control means to control it and supplying it to the load side.
- the purpose is to provide a device.
- the toroidal core on which the primary side coil and the secondary side coil are wound can be safely and securely fixed inside the power saving device by using a core fixing member, and heat generated from the toroidal core can be easily discharged to the outside of the device.
- Another object of the present invention is to provide a power saving device that can prevent the temperature rise of the device.
- the space is formed inside, the case of a predetermined volume in which a parking breaker to which external power is applied is provided on one side;
- It has a plurality of channels connected to correspond to the taps of the secondary side coil, and according to a control signal, one channel selected among the plurality of channels is connected to a bus bar to output a regulated voltage to the load side, and a bypass mode or a voltage regulation mode a multi-channel switch having a mode changeover switch for selectively adopting any one of the modes; and
- a control signal is applied to the multi-channel switch to compare a voltage value input to the main breaker with an average input voltage value, calculate a transformed value according to the comparison of voltage values, and adjust the input voltage to a voltage corresponding to the calculated value. and control means for outputting power information related to input and output voltages to the outside.
- the core fixing member may include a seating portion protruding from the bottom surface of the case to the outside of the fixing body at a predetermined height, and allowing the toroidal core to be spaced apart from the bottom surface of the case.
- the seating portion at least one first seating portion formed in a ring shape on the outside of the fixture;
- a second seating part formed in a radial shape with respect to the fixing body and extending a predetermined length in a direction crossing the first seating part;
- the present invention has the effect of improving the performance and lifespan of the load by stably regulating the supplied voltage through the toroidal core, the multi-channel switch, and a control means for controlling the same, and supplying it to the load side, thereby reducing the power consumption There is a remarkable effect that can be done.
- the toroidal core on which the primary side coil and the secondary side coil are wound can be safely and securely fixed inside the case using a core fixing member, and heat generated from the toroidal core can be easily discharged to the outside to keep the temperature of the device.
- Another object of the present invention is to provide a power saving device capable of preventing the rise.
- 1 and 2 are a plan view and a perspective view showing the inside of a power saving device according to the present invention
- FIG. 3 is a configuration diagram schematically showing a power saving device according to the present invention.
- FIGS. 4 and 5 are fastening views for fixing the toroidal core with a core fixing member in the power saving device according to the present invention
- the power saving device includes: a case 10 having a predetermined volume having a space formed therein and a main circuit breaker 11 to which external supply power is applied is provided on one side; A plurality of taps provided inside the case 10, a primary coil connected to the main circuit breaker 11 is wound, and a plurality of taps capable of boosting or reducing the voltage by the difference between the voltage induced in the primary coil and the set reference voltage.
- a toroidal core 20 having a secondary side coil wound in the opposite direction to the primary side coil;
- a fixing body 31 from which the fastening screw 31a protrudes upward is formed on the bottom surface of the case 10 and has a radius larger than the inner diameter of the toroidal core 20 and is fastened with the fastening screw 31a.
- the core fixing member 30 is formed on the outside of the fixing body 31 from the bottom surface of the case 10 , and protrudes to a predetermined height, and the toroidal core 20 is the case 10 . It includes;
- the seating portion 33 may include at least one first seating portion 33a formed in a ring shape on the outside of the fixture 31 ; a second seating portion (33b) formed radially around the fixing body (31) and extending a predetermined length in a direction crossing the first seating portion (33a) from the fixing body (31); and a through hole (33c) formed in the bottom surface of the case (10) between the inner and outer sides of the first seating part (33a) or the second seating part (33b).
- the power saving device stably adjusts the AC voltage supplied from KEPCO so that the rated power is output to the load side.
- a primary side coil is connected to a main circuit breaker 11
- a secondary side core 20 having a plurality of taps is wound in the reverse direction of the primary side coil, and the primary side coil is the main side coil.
- the secondary coil uses a plurality of taps to boost or reduce the voltage induced in the primary coil, thereby correcting the supply power to a voltage corresponding to the reference voltage.
- the toroidal core 20 can input by arbitrarily adjusting the pressure reduction or step-up value according to the variable input voltage regardless of the voltage fluctuation of single-phase or three-phase input from the outside through the main circuit breaker 11, or can be automatically adjusted, It is wound to adjust the voltage to about 220 [V] ⁇ 2% (216 [V] to 224 [V]) or 380 ⁇ 3% (370 [V] to 390 [V]).
- the toroidal core 20 includes one reference tap, four decompression taps composed of -3 [V], -6 [V], -9 [V], -12 [V], and +3 It may consist of a total of 7 taps, including two boosting taps composed of [V] and +6 [V].
- the toroidal core 20 is composed of one primary coil, secondary coil unit and change-over switch in a single phase, and three primary coils, secondary coils and a change-over switch in three phases. is composed of
- the ring-shaped toroidal core 20 is fixed inside the case 10 by the core fixing member 30 .
- the core fixing member 30 includes a fixing body 31 protruding upwardly from the bottom surface of the case 10 and having a fastening screw 31a protruding from the upper portion by a predetermined length; and a fastening plate 32 formed with a radius greater than the inner diameter of the toroidal core 20 and fastened with the fastening screw 31a, wherein the toroidal core 20 is disposed on the bottom surface of the case 10
- the fixing body 31 is inserted into the central portion of the toroidal core 20, and the fastening plate 32 moves in the direction of the fixing body 31 while being fastened to the fastening screw 31a to move the toroidal core 20 to the toroid.
- the toroidal core 20 is fixed inside the case 10 .
- the fixing body 31 is formed in a cylindrical shape with a smaller radius than the inner diameter of the toroidal core 20, and a screw fixing part protruding upward by inserting a fastening screw 31a is formed, and a screw fixing part and A space through which air can pass is formed between the side surfaces of the fixture 31 , and a plurality of exhaust windows are formed on the upper surface.
- the fastening plate 32 is formed in the form of a disk having a larger radius than the inner diameter of the toroidal core 20, and a plurality of grooves 32b are formed to be spaced apart from each other at regular intervals on the outer periphery, and the toroidal core (20) a support portion (32a) for pressing; and a nut part (32c) formed under the support part (32a) and fastened to the fastening screw (31a) of the fixing body (31).
- the fixing body 31 is inserted into the inner diameter center of the toroidal core 20
- the fastening plate 32 is the toroidal It is coupled to the fixing body 31 at the upper part of the core 20, and in particular, while the nut part 32c of the fastening plate 32 is fastened to the fastening screw 31a of the fixing body 31, the 32a) presses the upper part of the toroidal core 20, so that the toroidal core 20 is stably fixed inside the case 10, and thus the primary side coil, the secondary side coil and the toroidal core 20 has the effect that it does not move easily.
- the support portion 32a of the fastening plate 32 has a through hole formed in the central portion of the upper surface, and a plurality of supports radially extend to the edge of the support portion 32a around the through hole, and a plurality of supports are formed between the supports.
- groove is formed.
- a groove (32b) formed in a gentle curve is formed on the side or outer periphery of the support portion (32a), a protrusion of a gentle curve is formed between the groove (32b), the user's finger in the groove (32b)
- the fastening plate 32 may be easily rotated by rotating the support by applying a force in one direction.
- a nut part 32c fastened to the fastening screw 31a is formed in the lower part of the support part 32a.
- the toroidal core 20 and the support part 32a of the fastening plate 32 it is formed of a material such as paper, synthetic resin, or wood, and the inner diameter through which the nut part 32c can be inserted into the central part.
- a ring-shaped insulating member 34 is provided.
- the core fixing member 30 is formed on the outside of the fixing body 31 on the bottom surface of the case 10 , and the toroidal core 20 is spaced apart from the bottom surface of the case 10 . It further includes; a seating portion 33 to be seated as
- the seating portion 33 may include at least one first seating portion 33a formed in a ring shape on the outside of the fixture 31 ; a second seating part (33b) formed radially around the fixing body (31) and extending a predetermined length in the cross direction of the first seating part (33) from the fixing body (31); and a through hole (33c) formed in the bottom surface of the case (10) between the inner and outer sides of the first seating part (33a) or the second seating part (33b).
- a plurality of the first seating portions 33a may be formed to be spaced apart from each other by a predetermined distance to the outside of the fixing body 31, have a predetermined width, and the through hole 33c is formed between the fixing body 31 and the first mounting portion 33a. It is formed between the first seating portions 33a or between the first seating portions 33a.
- the second seating portion 33b extends a predetermined length to the outside of the fixture 31, preferably extends longer than the radius of the toroidal core 20, and protrudes to the outside of the first seating portion 33a
- a locking portion for supporting the side surface of the toroidal core 20 may be formed at a predetermined height.
- the present invention can reduce the temperature rise due to the heat generated by the mutual induction action of the primary coil and the secondary coil of the toroidal core 20 through the seating part 33 or prevent the temperature rise of the entire device.
- the toroidal core 20 can be safely fixed and supported inside the case 10 .
- the toroidal core 20 is seated on the seating part 33 without contacting the bottom surface of the case 10 and is spaced apart from the bottom surface of the case 10 by a predetermined height.
- the contact area with the seating portion 33 is minimized to easily lower the heat of the toroidal core 20, and the seating portion
- the effect that external air can be introduced into the case 10 through the through hole 33c formed in the 33 or the heat of the toroidal core 20 can be discharged to the outside of the case 10 through the through hole 33c have.
- the secondary coil of the toroidal core 20 has a plurality of taps respectively connected to a plurality of channels provided in the multi-channel switch 40, and the The channel switch 40 outputs an automatically adjusted voltage to the load side by selectively connecting one channel to the busbar according to a control signal from the control means 50 to be described later.
- the multi-channel switch 40 is provided with a mode changeover switch for selectively adopting any one of the bypass mode and the voltage regulation mode.
- the mode changeover switch one side is connected to the bus bar and the other side is connected to the secondary coil of the toroidal core 20, and when the bypass mode is selected, the toroidal core 20 is disconnected while being connected to the bus bar, , in the voltage control mode, the connection with the busbar is disconnected and connected to the toroidal core 20 to supply a stable voltage regulated by the coloidal core 20 to the load side.
- the interlocking switch cuts the connection with the toroidal core 20 and is connected to the busbar, so that power can be directly supplied to the busbar.
- the multi-channel switch 40 is arranged such that a plurality of channels connected to each other corresponding to a plurality of taps provided in the secondary side coil face each other, and busbars are installed at positions spaced apart from each other by a predetermined interval of the plurality of channels, It is configured to transfer power supplied through the change-over switch or any channel to the load side.
- a shaft made of a square-type screw pitch is installed between the space between the channel and the bus bar, and an encoder is installed on one side of the shaft to rotate the shaft by a control signal from the control means 50 .
- a driver having a mounted driving motor is formed.
- the switch head is installed on the shaft in a movable state, the switch head is moved while the shaft rotates according to the driving of the driver, and any channel and bus bar connected to each tab of the toroidal core 20 are installed.
- the power corrected by the pressure reduction or step-up can be supplied to the busbar side through the corresponding channel selected by interconnection.
- the multi-channel switch 40 is designed to be prefabricated so that it can be configured by adding or subtracting according to the number of taps of the voltage, and the state of the channel to which each tap of the toroidal core 20 is connected and/or the changeover switch. Power information related to various input and output voltages, such as whether the bypass mode operates or not, is output to the LED display unit formed on one side of the cover of the case 10 by the control means 50 .
- the control means 50 compares the voltage value input to the main breaker 11 with an average input voltage value, calculates a transformed value according to the comparison of the voltage value, and adjusts the voltage value corresponding to the calculated value.
- a control signal is provided to the multi-channel switch 40, and power information related to input and output voltages is output to the outside through the LED display unit.
- control means 50 includes an input unit for inputting operating conditions of the device by participating in voltage regulation, and measures the voltage and current adjusted through the conditions input from the input unit, and reduces the measured voltage/current.
- a detection unit for detecting abnormal currents such as current, overcurrent, and overvoltage;
- a storage unit for storing the value to be used, power information input from the electronic watt-hour meter, operation conditions of the input unit, and various values stored in the storage unit are transmitted to the LED monitor so that the user can check, and a predetermined input signal is received from the user
- a constant voltage can be supplied to the load side by controlling the multi-channel switch 40 through the transmitter and receiver that perform bidirectional communication in a wired/wireless manner, and calculated in the calculator according to the operating conditions input to the input section. and a control unit for controlling the entire device so as to be able to do so.
- control means 50 measures the voltage supplied from KEPCO, calculates an average voltage value by taking the measured value, and sets a transformed value.
- the multi-channel switch 40 is controlled through a control signal to select a tap corresponding to a pressure reduction or a pressure increase of the toroidal core 20 according to the segmented pressure value.
- the multi-channel switch 40 drives a driver according to a control signal, the shaft is rotated, and according to the rotation of the shaft, the switch head is selected according to a control signal of the control means 50 among a plurality of channels. It moves to the channel, and the voltage is reduced or boosted to a level corresponding to the set reference voltage by the toroidal core 20, so that stable rated power is supplied to the load side.
- the present invention is a power saving device that can reduce power consumption by maintaining the output voltage constant even when the input voltage changes. As a result, the performance and lifespan of the load are improved, and thus the power consumption can be reduced.
- the toroidal core on which the primary side coil and the secondary side coil are wound is safely and securely fixed inside the device using a core fixing member.
- an object of the present invention is to provide a power saving device capable of easily discharging heat generated from the toroidal core to the outside to prevent the temperature increase of the device.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
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- Control Of Electrical Variables (AREA)
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
Claims (5)
- 내부에 공간이 형성되고, 외부 공급전력이 인가되는 주차단기(11)가 일측에 구비되는 소정 부피의 케이스(10);상기 케이스(10) 내부에 구비되고, 상기 주차단기(11)에 연결되는 1차측 코일이 권선되며, 1차측 코일에서 유기되는 전압을 다수의 탭에 의해 승압하거나 감압하여 설정된 기준 전압에 대응하는 크기로 형성하는 2차측 코일이 권선되며, 상기 1차측 코일과 2차측 코일이 상호 역방향으로 권선되는 토로이달 코어(20);케이스(10) 바닥면에 형성되되 체결나사(31a)가 상부로 돌출되는 고정체(31)와, 상기 토로이달 코어(20)의 내경보다 큰 반경으로 형성되되 상기 체결나사(31a)와 체결되는 체결판(32)을 포함하고, 상기 토로이달 코어(20)가 케이스(10)의 바닥면에 안착되면서 상기 고정체(31)가 토로이달 코어(20)의 내경에 삽입되고, 상기 체결판(32)이 상기 체결나사(31a)에 체결되면서 상기 토로이달 코어(20)의 상부를 가압하여 상기 토로이달 코어(20)를 케이스(10) 내부에 고정하는 코어 고정부재(30);상기 2차측 코일의 탭에 대응하게 연결되는 다수의 채널을 갖고, 제어신호에 따라 다수의 채널 중 선택된 하나의 채널이 부스바와 연결되어 조절된 전압을 부하측으로 출력하며, 바이패스 모드 또는 전압조절 모드 중 어느 하나의 모드를 선택적으로 채택하는 모드 전환 스위치을 갖는 다채널 스위치(40); 및상기 주차단기(11)로 입력되는 전압 값을 평균 입력 전압 값과 비교하고, 전압 값의 비교에 따른 변압 값을 연산하며, 입력되는 전압을 연산 값에 대응하는 전압으로 조절하기 위해 제어신호를 상기 다채널 스위치(40)로 전달하고, 입,출력 전압에 관련된 전력정보를 외부로 출력하는 제어수단(50);을 포함하는 것을 특징으로 하는 전력 절감 장치.
- 제1항에 있어서,상기 코어 고정부재(30)는,케이스(10)의 바닥면에서 상기 고정체(31)의 외측에 소정 높이로 돌출되고, 상기 토로이달 코어(20)가 케이스(10)의 바닥면으로부터 이격되게 하는 안착부(33);를 포함하는 것을 특징으로 하는 전력 절감 장치.
- 제2항에 있어서,상기 안착부(33)는,상기 고정체(31)의 외측에 링 형태로 형성되는 적어도 하나의 제1 안착부(33a);상기 고정체(31)를 중심으로 방사형으로 형성되고, 상기 제1 안착부(33a)의 교차방향으로 소정 길이 연장되는 제2 안착부(33b); 및상기 제1 안착부(33a)의 내,외측 또는 상기 제2 안착부(33b) 사이의 케이스(10) 바닥면에 형성되는 통공(33c);을 포함하는 것을 특징으로 하는 전력 절감 장치.
- 제1항에 있어서,상기 체결판(32)은,토로이달 코어(20)의 내경보다 큰 반경의 원판 형태로 형성되고, 외주연에는 다수의 요홈(32b)이 일정 간격으로 이격되어 형성되며, 상기 토로이달 코어(20)를 가압하는 지지부(32a); 및상기 지지부(32a)의 하부에 형성되고, 상기 고정체(31)의 체결나사(31a)가 체결되는 너트부(32c);를 포함하는 것을 특징으로 하는 전력 절감 장치.
- 제1항 또는 제4항에 있어서,상기 토로이달 코어(20)와 상기 체결판(32)의 지지부(32a) 사이에는 링 형태의 절연부재(34)가 구비되는 것을 특징으로 하는 전력 절감 장치.
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JP3108167U (ja) * | 2004-10-08 | 2005-04-07 | コビシ電機株式会社 | 遊技機用電源トランス |
JP2005198146A (ja) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | ノイズフィルタ |
KR20140051277A (ko) * | 2011-06-29 | 2014-04-30 | 이씨알테크 홀딩스 피티와이 리미티드 | 전력 공급부 회로에서 전력 소모를 감소시키는 시스템 및 방법 |
KR20150025859A (ko) * | 2013-08-30 | 2015-03-11 | 삼성전기주식회사 | 코일 부품 및 이를 이용하는 전자 모듈 |
KR102274782B1 (ko) * | 2021-02-18 | 2021-07-08 | 주식회사 글로벌하이세스 | 전력 절감 장치 |
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JPH071477Y2 (ja) * | 1990-02-20 | 1995-01-18 | 沼田金属工業株式会社 | 支柱と線格子フエンス体との連結構造 |
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GB2043971A (en) | 1979-03-13 | 1980-10-08 | Koffler R | Voltage regulators |
JP2005198146A (ja) * | 2004-01-09 | 2005-07-21 | Okaya Electric Ind Co Ltd | ノイズフィルタ |
JP3108167U (ja) * | 2004-10-08 | 2005-04-07 | コビシ電機株式会社 | 遊技機用電源トランス |
KR20140051277A (ko) * | 2011-06-29 | 2014-04-30 | 이씨알테크 홀딩스 피티와이 리미티드 | 전력 공급부 회로에서 전력 소모를 감소시키는 시스템 및 방법 |
KR20150025859A (ko) * | 2013-08-30 | 2015-03-11 | 삼성전기주식회사 | 코일 부품 및 이를 이용하는 전자 모듈 |
KR102274782B1 (ko) * | 2021-02-18 | 2021-07-08 | 주식회사 글로벌하이세스 | 전력 절감 장치 |
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