| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 41 | DC motor drive circuit | US09694986 | 2000-10-25 | US06404155B1 | 2002-06-11 | Hideo Funayama; Hiromitsu Sato |
| When an electromagnetic relay connects a movable contact to a normally open contact N/O, direct current flows through direct current motor and thereby the direct current motor is driven. When the electromagnetic relay connects the movable contact to a normally closed contact N/C, the rotation of the direct current motor is braked. A plurality of normally open contacts N/O are connected in series in the passage of direct current obtained when the electromagnetic relay connects the movable contact to the normally open contact N/O. | ||||||
| 42 | Fail-safe switch | US21196 | 1998-02-10 | US6028274A | 2000-02-22 | Timothy S. Harris |
| A safety switch with a contactor structure including first and second contactor contacts electrically connected to each other. The switch has an "on" state in which first and second terminal contacts are contacted with the first and second contactor contacts, respectively, to thereby electrically connect the terminal contacts therebetween, and an "off" state in which the terminal contacts are not electrically connected to each other by the contactor structure, whereby current cannot flow between the terminal contacts. The switch also has a cycle control mechanism with a normal-state in which the switch is free to cycle between the "on" and "off" states, and a welded-state in which one of the terminal contacts is welded to one of the contactor contacts and the other of the contactor contacts is separated from the other of the terminal contacts. When the cycle control mechanism is in the welded state, the switch is prevented from moving from the "off" state to the "on" state. | ||||||
| 43 | Electric switch with dynamic brake contact shared for making and breaking a power circuit | US508009 | 1995-07-27 | US5600107A | 1997-02-04 | David Y. Tsai |
| A double pole single throw electric switch has normally closed contacts of one pole connected in a dynamic braking circuit with a motor load and normally open contacts connecting the motor to a source of power. A partial movable contact conductively connected to movable contacts of the normally open contacts is disposed in normally open position relative to one contact of the normally closed contacts to provide a parallel path through the switch for making and breaking the circuit to the power source. | ||||||
| 44 | Apparatus for controlling or regulating equipment powered by batteries | US797441 | 1991-11-22 | US5200657A | 1993-04-06 | Fritz Prestel |
| An apparatus to control the operation of equipment powered by batteries, particularly for supplying the current to electrical equipment, such as cordless screwdrivers and cordless drills. The apparatus includes a housing, an external, displaceable trigger handle on the housing and an electric circuit with at least one power semiconductor. The function of the electric circuit being controlled preferably is a result of potentiometer adjustment through displacement of the trigger handle. The power semiconductor, which control the flow of current to the equipment motor, is disposed within the housing on a circuit board, which in turn makes contact with a heat sink, which protrudes through an opening in the housing freely to the outside. | ||||||
| 45 | Multiple pole switch for producing simultaneous opposite switching operations | US3598934D | 1969-07-07 | US3598934A | 1971-08-10 | O'CONNOR WILLIAM H |
| A multiple pole electric switch of the type wherein different poles are respectively connected and disconnected by a single movement of the switch which includes a plurality of stationary contacts, a pluraLity of movable contacts preferably positioned to bridge a gap between a pair of the stationary contacts, and insulating projection means intermediate the pair of stationary contacts. Each movable contact includes a recess which engages the projection and an extending portion which engages one of the stationary contacts in the closed position. In the open position, the movable contact is moved so that the extending portion is lifted out of engagement with the stationary contact by the projection. At least one of the movable contacts is mounted for opposite movement relative to the remainder of the movable contacts so that the one contact opens when the remainder close and closes when the remainder open. Preferably, the extending portion of the movable contact is engaged by the projection and spaced from the stationary contact for a sufficient proportion of its movement so that, during switch operation in either direction, the initially closed contacts open before the initially opened contacts close.
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| 46 | Field discharge circuit breaker timing | US70585457 | 1957-12-30 | US2922009A | 1960-01-19 | POKORNY FRANK J; CRAIG JAMES C; TOOTELIAN GEORGE D |
| 47 | Dynamic braking of a single directcurrent series motor | US73614647 | 1947-03-21 | US2575021A | 1951-11-13 | LEITCH JOHN D; WHITE PAUL G |
| 48 | The electric tool switch | JP2008333666 | 2008-12-26 | JP5262701B2 | 2013-08-14 | 昭宏 保住; 浩二 大盛 |
| This invention provides an electric tool switch enabling fine speed control of an electric tool by an intuitive operation. An electric tool switch 1 includes an operation member 12 turnable in both directions and biased to self-return to a neutral position; a circuit substrate 21 arranged to be orthogonal to a turning shaft of the operation member 12; a slidably moving element 18 which is pressed against the circuit substrate 21 and which is turned with the operation member 12 to slidably contact the circuit substrate 21; and an inversion mechanism 24, 25 for switching a polarity between output terminals according to the turning direction of the operation member from the neutral position; where the circuit substrate 21 is formed with two sets of variable resistor circuits, which close a circuit when the slidably moving element 18 slidably contacts and which resistance value changes according to a contacting position of the slidably moving element 18, electrically connected in parallel on both sides in the turning direction from a position corresponding to the neutral position of the operation member. | ||||||
| 49 | Electric tool switch | JP2008333666 | 2008-12-26 | JP2010155295A | 2010-07-15 | HOZUMI AKIHIRO; OMORI KOJI |
| <P>PROBLEM TO BE SOLVED: To provide an electric tool switch capable of finely controlling the speed of an electric tool by an intuitive operation. <P>SOLUTION: The electric tool switch 1 includes: an operation member rotatable in both directions and energized so as to self-return to a neutral position; a circuit substrate 21 disposed so as to be orthogonal to a rotation axis of the operation member; a slider 18 pressed by the circuit substrate, rotating with the operation member and coming into slide contact with the circuit substrate 21; and an inversion mechanism 24, 25 for switching a polarity between output terminals according to the rotational direction of the operation member from the neutral position. In the circuit substrate 21, two sets of variable resistor circuits closing a circuit by the slide contact of the slider 18, and in which a resistance value changes according to the abutting position of the slider 18, are electrically connected in parallel to both sides in a rotating direction from a position corresponding to the neutral position of the operation member. <P>COPYRIGHT: (C)2010,JPO&INPIT | ||||||
| 50 | Variable speed control device | JP12693399 | 1999-05-07 | JP4206434B2 | 2009-01-14 | ヘンリー スミス ジャクソン; トーマス リトル マイケル |
| 51 | Braking device for the electric motor | JP23342893 | 1993-09-20 | JP2735771B2 | 1998-04-02 | AUGUSUTO GAIGA; AREKUSANDA KUNAPA; MIHYAERU BUUFUE |
| 52 | Braking device for electric motor | JP23342893 | 1993-09-20 | JPH06198578A | 1994-07-19 | AUGUSUTO GAIGA; AREKUSANDA KUNAPA; MIHIYAERU BUUFUE |
| PURPOSE: To provide a braking device that has a braking switch including a changeover switch for an electric motor for driving an electric hand tool such as a drilling machine, a rectangular grinding machine, and hedging scissors with a positive operation. CONSTITUTION: During a changeover from an electric motor operation to a braking operation, both changeover switches S1, S2 substantially synchronously open the electric motor circuit, a switch contact of the changeover switch S1 close to a power supply is moved later than a switch contact of the changeover switch S2 far from the power supply, an a braking current circuit of the changeover switch S1 close to the power supply is delayingly switched on. During a changeover from the braking operation to the electric motor operation, both of the changeover switches S1, S2 are substantially synchronously opened, the switch contacts of the changeover switches S1, S2 are moved without delay, and the changeover switches S1, S2 substantially simultaneously switch on the electric motor circuit. | ||||||
| 53 | Controller for battery driven apparatus | JP32207991 | 1991-12-05 | JPH05256966A | 1993-10-08 | Fritz Prestel; プレステル フリッツ |
| PURPOSE: To obtain a controller for a battery driven apparatus, in particular a circuit for motor drive mechanism, wherein loads such as motors are contained in a small enclosed switch housing packed closely and provided with a power semiconductor for dissipating heat sufficiently and surely. CONSTITUTION: The controller comprises an enclosed housing, a displaceable trigger handle disposed above the housing, and an electric circuit means for controlling power supply to a motor M. The electric circuit means comprises a plurality of circuit components including a potentiometer P1 having at least one power semiconductor HS responsive to the regulation of potentiometer P1 being regulated depending on the displacement of the trigger handle. The power semiconductor MOS-FET; HS controls current supply to the motor and touches a heat sink projecting through an opening of the housing to the outside thereof. COPYRIGHT: (C)1993,JPO | ||||||
| 54 | Electromagnetic relay | EP06100247.3 | 2006-01-11 | EP1681698B1 | 2013-07-03 | Tsutsui, Kazuhiro; Wachi, Hideyuki |
| 55 | Variable speed control switch for direct current electric power tools | EP99109186.9 | 1999-05-10 | EP0957497B1 | 2004-06-30 | Smith, Jackson Henry; Little, Michael Thomas |
| 56 | Apparatus and method for braking electric motors | EP98300838.4 | 1998-02-05 | EP0858151B1 | 2003-07-09 | Woods, Samuel; Spampinato, David; White, Paul |
| 57 | DC motor drive circuit | EP00124537.2 | 2000-11-09 | EP1100101A3 | 2003-05-14 | Funayama, Hideo, c/o Taiko Device, Ltd.; Sato, Hiromitsu, c/o Taiko Device, Ltd. |
When an electromagnetic relay connects a movable contact to a normally open contact N/O, direct current flows through direct current motor and thereby the direct current motor is driven. When the electromagnetic relay connects the movable contact to a normally closed contact N/C, the rotation of the direct current motor is braked. A plurality of normally open contacts N/O are connected in series in the passage of direct current obtained when the electromagnetic relay connects the movable contact to the normally open contact N/O. |
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| 58 | DC motor drive circuit | EP00124537.2 | 2000-11-09 | EP1100101A2 | 2001-05-16 | Funayama, Hideo, c/o Taiko Device, Ltd.; Sato, Hiromitsu, c/o Taiko Device, Ltd. |
When an electromagnetic relay connects a movable contact to a normally open contact N/O, direct current flows through direct current motor and thereby the direct current motor is driven. When the electromagnetic relay connects the movable contact to a normally closed contact N/C, the rotation of the direct current motor is braked. A plurality of normally open contacts N/O are connected in series in the passage of direct current obtained when the electromagnetic relay connects the movable contact to the normally open contact N/O. |
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| 59 | Variable speed control switch for direct current electric power tools | EP99109186.9 | 1999-05-10 | EP0957497A3 | 2000-08-23 | Smith, Jackson Henry; Little, Michael Thomas |
A motor control circuit (10) for a power tool includes a function switch (39) which has a first battery contact (40), a speed control contact (41), a bypass contact (42) and, a second battery contact (44) connected in that order in a line. The function switch (39) also has a movable contact (38) which sequentially connects the first battery contact (40) to the bypass contact (42), the speed control contact (41) to the second battery contact (44), and the bypass contact (42) to the second battery contact (44). A solid state switch (22) has conduction path connecting the speed control contact (41) to a motor terminal (32) wherein the conduction path is controlled in response to an oscillator signal. |
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| 60 | Apparatus and method for braking electric motors | EP98300838.4 | 1998-02-05 | EP0858151A1 | 1998-08-12 | Woods, Samuel; Spampinato, David; White, Paul |
A braking circuit for braking an electric motor having an armature and run and brake windings, which includes a switching circuit (91) disposed between a source of electrical power and the run winding (R), this circuit being operable to disconnect the run winding (R) from the source of electrical power. The braking circuit further includes a switching mechanism (90) operable to connect the brake winding in order to brake the electric motor. The switching mechanism (90) preferably connects the brake winding (B) after a predetermined period of time has elapsed from the disconnection of the run winding (R). This braking circuit can be used in a saw for braking the saw's blade. |
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