子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | Circuit breaker electronic trip unit with adjustable settings | US842951 | 1997-04-25 | US5821485A | 1998-10-13 | Paul H. Singer; Paul T. Rajotte |
| A circuit breaker trip unit enclosure is adapted to receive rotary knobs that are limited in rotation in proportion to the circuit breaker short circuit rating. The externally-accessible rotary knobs extend within the enclosure to contact with a potentiometer affixed to the circuit breaker trip unit printed circuit board. A stop member is inserted within the enclosure access opening to detent the rotary knob shank that extends through the access opening. | ||||||
| 222 | Trip bar with adjustable latch load for electrical switching apparatus | US645663 | 1996-05-14 | US5705968A | 1998-01-06 | H. Richard Beck; David E. Little; Kenneth M. Fischer; Richard E. White |
| A circuit breaker includes a housing; separable contacts housed by the housing; an operating mechanism, for moving the separable contacts between a closed position and an open position thereof, having a first position and a second position corresponding to the open position; a latching and releasing mechanism for latching the operating mechanism in the first position thereof and for releasing the operating mechanism to the second position thereof; a rotatable trip bar rotatable in a first rotational direction and a second rotational direction for unlatching the latching and releasing mechanism; a sensing mechanism for sensing an electrical condition associated with the separable contacts and for moving the trip bar in the second rotational direction in order to unlatch the latching and releasing mechanism, release the operating mechanism to the second position thereof, and move the separable contacts to the open position thereof; and an adjustable bias spring for biasing the trip bar in the first rotational direction. | ||||||
| 223 | Adjustable circuit breaker thermal trip unit | US327221 | 1989-03-22 | US4922220A | 1990-05-01 | John K. Livesey; James N. Altenhof, Jr. |
| Apparatus for adjusting the calibration of a thermal trip unit which is to be used in conjunction with an electrical circuit breaker. A rotatable knob is provided which adjusts the trip unit to between one hundred percent of the rating of the circuit breaker and some value which is less than one hundred percent. An adjustable stop screw is provided to engage the rotatable knob when the knob is rotated to adjust the calibration of the trip unit to the desired value which is less than one hundred percent of the rating of the breaker. The adjustable stop screw thereby limits travel of the adjustable knob between only one hundred percent of the rating of the circuit breaker and the desired value which is less than one hundred percent. | ||||||
| 224 | Sensor-tripper apparatus for a circuit interrupter | US91187 | 1987-08-31 | US4791394A | 1988-12-13 | Harvey W. Mikulecky |
| A sensor-tripper apparatus for tripping the trip lever of a circuit interrupter in a power distribution circuit, the apparatus including a trip rod mounted in a tube and supported on a frame, a thermally responsive member having a predetermined curie temperature connected in the primary circuit, a magnet assembly mounted for axial movement on the tube and operatively connected to the trip rod, the magnet assembly being attracted to the thermally responsive member and holding a spring in compression whereby on release of the magnet assembly from the thermally responsive member the spring will move the magnet assembly and trip rod to trip the trip lever and a magnetic disk assembly operatively connected to the trip rod and being responsive to a high fault current in the primary circuit to move the trip rod independently of the magnet assembly to trip the trip lever. | ||||||
| 225 | Circuit breaker | US812899 | 1985-12-23 | US4761626A | 1988-08-02 | Wataru Teraoka |
| In a circuit breaker includes a fixed contactor, a moving contactor subjected to a switching operation of a switching mechanism, a heater connected to the moving contactor and disposed in such a manner as to extend along a fixed core and a moving core pivotally supported by the fixed core, the fixed contactor is formed in a J-shape and is interposed between an insulating member disposed on the fixed contactor in such a manner as to extend along the side of the fixed contactor facing the moving contactor and a demagnetizing member disposed in such a manner as to extend along the bent inner surface. The circuit breaker includes also an operation time adjusting mechanism engaging with the moving core and capable of adjusting the operation time of the moving core, and a casing storing therein the constituent elements. The operation time adjusting mechanism is brought into abutment against an adjustment portion formed on the moving core, and is detachably mounted on the casing. | ||||||
| 226 | Mechanical time delay mechanism | US683092 | 1984-12-18 | US4639561A | 1987-01-27 | Aymon A. Maulandi |
| A mechanical time delay mechanism is shown which provides a predetermined time delay between the movement of the moving contact blade on a circuit breaker and the activation of a switch. The control circuit design of the circuit breaker provides for tripping at one level when the breaker is in the closed position and at a second lower fault level when the circuit breaker is closing and for a predetermined number of cycles thereafter. The subject time delay mechanism activates a switch to change the tripping level from the second level to the first level at the appropriate time. The mechanism includes a pivot link assembly connected directly to the moving contact arm, a ratchet assembly, and a pivot link connecting the two. The pivot link assembly includes a set of springs to delay the movement of the link with respect to the movement of the pivot link in response to an opposing pull on the link. The pull on the link comes from the ratchet wheel which is slowed by a weighted rocker which rocks over several ratchet teeth. The switch is activated by a pin mounted on the ratchet wheel after the ratchet wheel has rotated through a predetermined angle. | ||||||
| 227 | Contact control arrangement for high amperage molded case circuit breaker | US492901 | 1983-05-09 | US4524339A | 1985-06-18 | Ferdinand E. Chabot |
| A pair of toggle links in a high amperage molded case circuit breaker are driven over center in response to the discharge of a closing spring for pivoting a plurality of blades and closing the breaker contacts. A latch link pivotally connected to the upper toggle link also is engaged by a pivotable latch along an arcuate surface on the latch so that shock forces are transmitted along a radial line of the latch for minimizing inadvertent rotational forces on the latch. The latch release force is rendered dependent on the spring force exerted through the links from the blade overtravel springs and the coefficient of friction of the latch arcuate surface. The force exerted through the links is controlled by an adjustable stop having an inclined surface engaging the pivot connection between the toggle links. Large movements of the stop provide small changes in the inclined surface position relative the pivot connection to provide small changes in the overcenter position. An adjustment assembly controls the distance the latch pivots for disengaging the latch link and a spring associated with the adjustment assembly provides additional shock isolation. Helical coil springs of cadmium copper alloy between the blades and a journal serve to eliminate pigtail connections for the blades. | ||||||
| 228 | Circuit interrupter | US206857 | 1980-11-06 | US4325041A | 1982-04-13 | Wasaburo Murai |
| The disclosed circuit interrupter comprises a magnetic core structure including a magnetic core and magnetic yokes defining an annular magnetic gap around the core, and a primary and a secondary coil wound on the core to form a current transformer. The movable contact arm is disposed in the magnetic gap to be magnetically driven to the open position, and a magnetic armature of an instantaneous trip means is disposed adjacent to the magnetic yokes so that it is magnetically actuated upon a short-circuit current. A bimetallic element of a thermally responsive trip means is electrically connected to the secondary coil of the transformer. The magnetic yokes include extended portions which serve as magnetic means for driving an electric arc established between the separated contacts into an arc extinguisher which is also disposed between the magnetic yokes. | ||||||
| 229 | Circuit interrupter | US766476 | 1977-02-07 | US4118680A | 1978-10-03 | Russell T. Borona |
| A circuit interrupter characterized by an insulating housing containing a circuit interrupter mechanism, calibration means operatively connected to the mechanism for adjusting operation of the contacts, the housing having a hole aligned with the calibration means, and a plastic plug in the hole, whereby a tamper-proof circuit interrupter is provided. | ||||||
| 230 | Electrical control device with adjustable calibration locking means | US33808164 | 1964-01-16 | US3265832A | 1966-08-09 | POWELL DAVID B |
| 231 | Circuit breakers and enclosures therefor | US76215558 | 1958-09-19 | US3046453A | 1962-07-24 | MARTIN PAUL S |
| 232 | Adjustable latching mechanism | US53347455 | 1955-09-09 | US2782284A | 1957-02-19 | CASE NORTON M |
| 233 | Circuit breaker | US31795252 | 1952-10-31 | US2691709A | 1954-10-12 | LINGAL HARRY J; JEROME SANDIN |
| 234 | Multipole circuit breaker and tripping device therefor | US54855044 | 1944-08-08 | US2487637A | 1949-11-08 | COLE THOMAS M; LANTZ JR WILLIAM H |
| 235 | 트립기구모듈의 동작 시험장치 | KR1020170053168 | 2017-04-25 | KR101910389B1 | 2018-10-22 | 정동환 |
| 본발명은트립기구모듈(MTD)와과전류계전기(OCR)를조립하지않은상태에서단독으로트립기구모듈(MTD)의동작시험을용이하게수생할수 있는트립기구모듈의동작시험장치에관한것으로, 소정의구속부재를이용하여트립기구모듈(MTD)의리셋레버를구속한상태에서리셋레버를소정각도로왕복회동시켜, 상기리셋레버회동시특정위치를반복적으로감지하여상기트립기구모듈의동작유무를시험하는 MTD동작시험기를포함하여구성된다. | ||||||
| 236 | 배선용 차단기 | KR1020150033872 | 2015-03-11 | KR101691107B1 | 2016-12-29 | 오경환 |
| 본발명은배선용차단기에관한것으로, 더욱상세하게는배선용차단기에있어서, 트립을위한부품이수납되는케이스와; 상기케이스에탈부착되는상부커버와; 외주면을따라돌출되도록고정판이형성되고, 상기고정판의하측으로제1 스토퍼가형성된다이얼과; 상기다이얼에의하여이동하는크로스바와; 상기다이얼이끼워지도록상기상부커버에형성된제1 다이얼끼움홀; 및상기제1 다이얼끼움홀의내측에형성되고, 상기고정판과상기제1 스토퍼사이에끼워져상기다이얼의회전을안내함과동시에다수개의끼움홈이소정간격이격되게형성되어상기다이얼의회전에따라상기제1 스토퍼가상기끼움홈에끼워져고정되는다이얼회전조절부;를포함하는것을특징으로하는배선용차단기에관한것이다. 본발명은다이얼에제1 스토퍼를구비시키고, 다이얼의회전에따라제1 스토퍼가다이얼회전조절부에형성된끼움홈에끼워지도록하여다이얼이배선용차단기에요구되는정격전류값에위치한상태에서견고하게고정되도록함으로써정격전류값을외부에정확하게표시할뿐만아니라다이얼이외부의충격으로인해일정부분이동하여정격전류값이변함으로써배선용차단기가오동작되는것을방지하는효과가있다. | ||||||
| 237 | 배선용 차단기 | KR1020150033872 | 2015-03-11 | KR1020160109457A | 2016-09-21 | 오경환 |
| 본발명은배선용차단기에관한것으로, 더욱상세하게는배선용차단기에있어서, 트립을위한부품이수납되는케이스와; 상기케이스에탈부착되는상부커버와; 외주면을따라돌출되도록고정판이형성되고, 상기고정판의하측으로제1 스토퍼가형성된다이얼과; 상기다이얼에의하여이동하는크로스바와; 상기다이얼이끼워지도록상기상부커버에형성된제1 다이얼끼움홀; 및상기제1 다이얼끼움홀의내측에형성되고, 상기고정판과상기제1 스토퍼사이에끼워져상기다이얼의회전을안내함과동시에다수개의끼움홈이소정간격이격되게형성되어상기다이얼의회전에따라상기제1 스토퍼가상기끼움홈에끼워져고정되는다이얼회전조절부;를포함하는것을특징으로하는배선용차단기에관한것이다. 본발명은다이얼에제1 스토퍼를구비시키고, 다이얼의회전에따라제1 스토퍼가다이얼회전조절부에형성된끼움홈에끼워지도록하여다이얼이배선용차단기에요구되는정격전류값에위치한상태에서견고하게고정되도록함으로써정격전류값을외부에정확하게표시할뿐만아니라다이얼이외부의충격으로인해일정부분이동하여정격전류값이변함으로써배선용차단기가오동작되는것을방지하는효과가있다. | ||||||
| 238 | 배선용 회로차단기의 상부 커버 | KR2020120009061 | 2012-10-09 | KR2020140002193U | 2014-04-17 | 이광원 |
| 본 고안은 평상시 이물질의 유입을 차폐하여 방지할 수 있고 단락사고에 의한 트립동작시 아크 가스압을 배출할 때는 아크 가스의 배기구를 형성할 수 있으며, 배선용 차단기 제조원가 상승을 최소화할 수 있는 구성을 가진 배선용 회로차단기의 상부 커버를 제공하려는 것으로서, 본 발명에 따른 상부 커버는 상부 커버의 길이 방향으로 연장하고 각각 양 단 부를 갖는 한 쌍의 측벽; 상간 절연을 위해 상기 한 쌍의 측벽 사이에 마련되는 복수의 격벽; 및 상기 측벽의 양 단 부와 상기 격벽 사이 또는 상기 양 격벽 사이에 마련되며, 회동 가능하도록 힌지 부를 구비하여, 평상시에는 상기 측벽의 양 단 부와 상기 격벽 사이 또는 상기 양 격벽 사이를 차폐하여 이물질의 유입을 방지하고 미리 결정된 아크 가스압력에 의해서는 회동하여 아크 가스를 배출하는 배기구를 형성할 수 있는 복수의 아크 배리어 부재;를 포함한다.
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| 239 | 안전 시스템 | KR1020070083588 | 2007-08-20 | KR1020090019284A | 2009-02-25 | 엄재필 |
| A breaker including over current determining part and alarm part, and a security system using the same are provided to easily deliver abnormal condition to a user of a long distance by adding an alarm part emitting alarm sound to a breaker. A breaker comprises an over current determining part(110), an alarm part(120), an alarm signal generating part(130), and an alarm signal transmitting part(140). The over current determining part senses a load current. The alarm part emits an alarm sound in case the load current reaches a predetermined value. The alarm signal generating part generates an alarm signal in case the load current reaches a predetermined value. The alarm signal transmitting part receives the signal generated in the alarm signal generating part, converts the received signal into a signal suitable to a mobile terminal, and transmits the converted signal. | ||||||
| 240 | 회로차단기열트립장치용 어드져스터블 정지기구 | KR1019900003845 | 1990-03-21 | KR100149663B1 | 1998-10-15 | 존케이드리베시; 제임스노만알렌호프쥬니어 |
| 내용없음 | ||||||
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