KR101114679B1 - 전자 접촉기의 표시 장치 - Google Patents
전자 접촉기의 표시 장치 Download PDFInfo
- Publication number
- KR101114679B1 KR101114679B1 KR1020100053423A KR20100053423A KR101114679B1 KR 101114679 B1 KR101114679 B1 KR 101114679B1 KR 1020100053423 A KR1020100053423 A KR 1020100053423A KR 20100053423 A KR20100053423 A KR 20100053423A KR 101114679 B1 KR101114679 B1 KR 101114679B1
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- KR
- South Korea
- Prior art keywords
- voltage
- power supply
- supply voltage
- state
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000034 method Methods 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 3
- 230000005856 abnormality Effects 0.000 abstract 2
- 238000012806 monitoring device Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000009499 grossing Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 244000145845 chattering Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/08—Indicators; Distinguishing marks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/32—Energising current supplied by semiconductor device
- H01H47/325—Energising current supplied by semiconductor device by switching regulator
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/008—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for protective arrangements according to this subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Abstract
Description
도 2는 도 1에 도시한 검출부의 상세 구성도이다.
도 3a 내지 도 3c는 도 1에 도시한 비교부의 상세 구성도들이다.
도 4는 도 1에 도시한 표시부의 상세 구성도이다.
20...정류부 30...전원 전압 검출부
40...비교부 50...표시부
Claims (5)
- 전자 접촉기와 일체로 형성된 전자 접촉기의 표시장치에 있어서,
전원 장치에서 공급되는 전원 전압을 정류하여 직류 전압으로 변환하는 정류부;
상기 전원 장치에서 공급되는 전원 전압을 인가받아 상기 전원 전압의 크기를 검출하는 전원 전압 검출부;
상기 정류부에서 변환된 직류 전압을 공급받고, 상기 전원 전압 검출부에서 검출된 전원 전압의 크기와 기 설정된 기준 전압의 크기를 비교하여 상태 제어 신호를 출력하는 비교부;
상기 비교부에서 출력된 상태 제어 신호를 인가받아 상기 전원 전압의 상태를 표시하는 표시부를 포함하는 전자 접촉기의 표시 장치.
- 제 1 항에 있어서,
상기 전원 전압의 상태는,
저전압, 정격전압 및 과전압 상태 중에서 어느 하나인 전자 접촉기의 표시 장치.
- 제 1 항에 있어서,
상기 전원 전압에서 서지 전압을 흡수하여 제거하고,
서지 전압의 크기가 기준치 이상되면, 상기 전원 전압이 인가되는 것을 차단시키는 보호부를 더 포함하는 전자 접촉기의 표시 장치.
- 제 1 항에 있어서,
상기 전원 전압 검출부는,
상기 전원 전압을 소정 비율이 낮은 전압으로 변환하는 전자 접촉기의 표시 장치.
- 제 1 항에 있어서,
상기 표시부는,
발광 다이오드, LCD(Liquid Crystal Display), 전구 및 7-Segment 중에서 어느 하나인 전자 접촉기의 표시 장치.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100053423A KR101114679B1 (ko) | 2010-06-07 | 2010-06-07 | 전자 접촉기의 표시 장치 |
CN201110154030.4A CN102279310B (zh) | 2010-06-07 | 2011-06-03 | 电磁接触器的显示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020100053423A KR101114679B1 (ko) | 2010-06-07 | 2010-06-07 | 전자 접촉기의 표시 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20110133804A KR20110133804A (ko) | 2011-12-14 |
KR101114679B1 true KR101114679B1 (ko) | 2012-03-05 |
Family
ID=45104870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020100053423A Active KR101114679B1 (ko) | 2010-06-07 | 2010-06-07 | 전자 접촉기의 표시 장치 |
Country Status (2)
Country | Link |
---|---|
KR (1) | KR101114679B1 (ko) |
CN (1) | CN102279310B (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101677043B1 (ko) * | 2014-07-23 | 2016-11-21 | 주식회사 파나시아 | 평형수처리시스템의 자동전원차단시스템 및 그 방법 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200415257Y1 (ko) | 2005-12-26 | 2006-05-03 | 현대중공업 주식회사 | 전자 접촉기 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2066162U (zh) * | 1990-02-22 | 1990-11-21 | 江苏省国营南京第四机床厂 | 机床节能功率监控装置 |
JP3496982B2 (ja) * | 1994-07-15 | 2004-02-16 | 三菱電機株式会社 | 電磁接触器 |
JP4319973B2 (ja) * | 2004-12-13 | 2009-08-26 | Idec株式会社 | リレー |
KR100841431B1 (ko) * | 2006-09-26 | 2008-06-25 | 삼성전자주식회사 | 과전압차단기능을 구비한 전원공급장치,영상디스플레이장치 및 과전압차단방법 |
KR100802910B1 (ko) * | 2007-03-05 | 2008-02-13 | 엘에스산전 주식회사 | 전자접촉기의 코일 구동장치 |
-
2010
- 2010-06-07 KR KR1020100053423A patent/KR101114679B1/ko active Active
-
2011
- 2011-06-03 CN CN201110154030.4A patent/CN102279310B/zh active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200415257Y1 (ko) | 2005-12-26 | 2006-05-03 | 현대중공업 주식회사 | 전자 접촉기 |
Also Published As
Publication number | Publication date |
---|---|
CN102279310A (zh) | 2011-12-14 |
KR20110133804A (ko) | 2011-12-14 |
CN102279310B (zh) | 2014-09-03 |
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