| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Slide transformer | JP7040482 | 1982-04-28 | JPS58188112A | 1983-11-02 | TSUCHIYA AKIRA |
| PURPOSE:To make it easy to manufacture and reduce the size of a transformer of such a type wherein a flat and square conductor is wound around a winding frame as it is being insulated and a sliding element is brought to contact with the sliding surface of the conductor by such an arrangement wherein 2 sides or 3 sides of the conductor including its side opposing to the winding frame are tightly and closely covered with an insulating member. CONSTITUTION:Two or three sides of a flat square conductor 5 including its side opposing to a winding frame are tightly covered with an insulating member 6 of which thickness is made larger. If the conventional resin coating such as formal enamel is used as the insulating member 6, its thickness cannot be made larger, therefore, resin particles are caused to melt and adhere to the surface of the conductor with such portions of the conductor that are to be exposed naked covered with masks. In this manner, a main winding 7 of which surge resistivity is raised by making the thickness of the member 6 larger is obtained, and this winding is tightly wound around a waiting frame 8. By this arrangement, the manufacture of a transformer becomes very easy and when the winding is wound around an iron core, insulation process is no longer required. | ||||||
| 22 | JPS559820B2 - | JP9722972 | 1972-09-29 | JPS559820B2 | 1980-03-12 | |
| Electromagnetic devices such as inductors and autotransformers having improved suppression to sparking or high voltage peaks at the terminals and between coil windings are provided using certain sintered metal oxide insulators having varistor characteristics. The metal oxide can be employed in conjunction with magnetic core material, as a composite core in such electromagnetic devices. | ||||||
| 23 | JPS497697B1 - | JP3034269 | 1969-04-21 | JPS497697B1 | 1974-02-21 | |
| 24 | JPS4842322A - | JP9722972 | 1972-09-29 | JPS4842322A | 1973-06-20 | |
| Electromagnetic devices such as inductors and autotransformers having improved suppression to sparking or high voltage peaks at the terminals and between coil windings are provided using certain sintered metal oxide insulators having varistor characteristics. The metal oxide can be employed in conjunction with magnetic core material, as a composite core in such electromagnetic devices. | ||||||
| 25 | Variable inductor | JP7057891 | 1991-03-11 | JPH04219907A | 1992-08-11 | JIYANNRIYUKU URUTANNU; JIYATSUKU GIIIAARU |
| PURPOSE: To provide a variable inductor for large power by providing a movable contact point realizing connection with an induction part and a connection means to an output electrode in a conductive movable member and by arranging the movable contact point near the induction part. CONSTITUTION: The movable member 2 electrically connects one spot on the induction part 4 and the output electrode 5, and the movable member 2 is provided with the movable contact point moved on the induction part 4 and the connection means to the output electrode 5. The induction part 4 is positioned following an input electrode 3, the induction part 4 is a helical segment cut and formed in the same cylindrical body and the movable member 2 is displaced so as not to make the movable contact point 8 positioned on the helical segment 4 exceed two limit spots set near the input electrode 3 and near the output electrode 5. The connection of the movable contact point 8 and the helical segment 4 and the connection of a return contact point 9 and the output electrode 5 are both realized by an arc. COPYRIGHT: (C)1992,JPO | ||||||
| 26 | Shudoshikihenatsuki | JP7040482 | 1982-04-28 | JPH0239084B2 | 1990-09-04 | TSUCHA AKIRA |
| 27 | Output voltage fine adjustor for 3-phase regulation transformer | JP10102083 | 1983-06-08 | JPS5911418A | 1984-01-21 | EEGON HIYUUBERU |
| 28 | Large-current slide type transformer | JP8338881 | 1981-05-30 | JPS57198616A | 1982-12-06 | TSUZAKI YOSHIZOU |
| PURPOSE:To obtain output voltage characteristics with excellent linearity with a relatively simple structure by providing a foiled compensating coil, and respectively connecting both ends of a main coil and an intermediate point to both ends of the compensating coil and an intermediate point. CONSTITUTION:A conductive foiled compensating coil 5 of the width covering substnatially overall width of a main coil 2 is wound on a core 1. A main coil 2 is wound on the coil 5, and a slide 3 is slid in the state to be electrically connected onto the coil 2. With the thus structure, when a large current is produced so that an output V0 tends to decreased by DELTAV, a voltage produced at the coil of the 1' side of the coil 2 tends to rise by DELTAV. Since this rise DELTAV is induced in the coil 5, the drop of DELTAV can be suppressed. As a result, the output voltage characteristics have excellent linearity like that at the time of small current output. | ||||||
| 29 | Variable transformer | JP3615479 | 1979-03-27 | JPS54132722A | 1979-10-16 | SUTANREI JII PESHIERU |
| 30 | JPS5135925B1 - | JP2522571 | 1971-04-19 | JPS5135925B1 | 1976-10-05 | |
| 31 | JPS516328B1 - | JP3790069 | 1969-05-16 | JPS516328B1 | 1976-02-27 | |
| 32 | JPS515165B1 - | JP5276169 | 1969-07-03 | JPS515165B1 | 1976-02-18 | |
| 33 | JPS4417225B1 - | JP3953465 | 1965-07-01 | JPS4417225B1 | 1969-07-29 | |
| 34 | Compliant motor driven variable electrical device | US11072464 | 2005-03-07 | US20050200443A1 | 2005-09-15 | John Salinardi; James Rosen |
| A motor driven electrical device includes: a variable electrical device having a rotational variable control; a first support plate positioned above the variable electrical device; a motor support plate pliably attached to the first support plate using a pliable separator positioned between the motor support plate and the upper support; a motor mounted on the motor support plate, the motor having an output shaft; an interface/control unit coupling the output shaft to the rotational variable control; and stanchions attached to the first support plate for holding the first support plate in a fixed relation with respect to the variable electrical device. | ||||||
| 35 | Current amplifying device | US233542 | 1988-08-12 | US4904923A | 1990-02-27 | Oved S. F. Zucker |
| Disclosed is a reversible inductive energy transfer device for use where efficient transfer of energy between inductors is required. The apparatus is a current amplifying device which utilizes an energy storage inductor which comprises a plurality of series connected induction elements, the inductor being connected in series with a current source and a load inductor. The series connected induction elements are progressively disconnected from the load inductor in a make-before-break manner. The switching may be accomplished by a mechanical switch or by means of superconducting switches, semiconductor switches or PCT switches. The energy storage inductor comprises a single turn or current loop having a plurality of high conductivity, at least partially mutually coupled current paths. The current is continuously or discretely diverted into progressively smaller current paths in order to amplify the current and transfer energy into the load inductor. | ||||||
| 36 | AC power supply | US798123 | 1985-11-14 | US4694140A | 1987-09-15 | William M. Wheeler; David C. Wheeler; Ernest E. Wheeler |
| The invention is directed to an AC power supply for portable welding machines or the like which employ a transformer of either single or multi-phase power wound around a cylindrical core. The core is constructed from a continuous length of steel alloy ribbon. The individual windings of both the primary and secondary are spaced apart. In operation the transformer is submerged in a heat transfer medium to provide cooling thereof by heat transfer therefrom. The transformer may have either a tapped primary or secondary or both to provide secondary amperage for the intended use of the transformer. An external cooling radiator may be employed to provide additional cooling to the heat transfer medium. | ||||||
| 37 | Variable autotransformer having an indexed stepping brush | US620375 | 1984-06-12 | US4577146A | 1986-03-18 | Richard S. Lenzing |
| An adjustable voltage transformer having a commutating surface formed of segments of electrical conductors upon which a contact brush is movable while in electrical engagement therewith. Means are provided to "step" the brush between segments, so that when at rest, the brush contacts no more than one segment, thus reducing short-circuiting currents and overheating; however, when the brush is being moved, it is in contact with two segments, thus allowing uninterrupted output from the transformer. | ||||||
| 38 | Device for the fine adjustment of the output voltage of multi-phase regulating transformers | US501815 | 1983-06-07 | US4540934A | 1985-09-10 | Egon Hubel |
| A multi-phase regulating transformer is disclosed having a plurality of windings cooperating with stepping trolleys which are driven by a common driving member. To obtain fine adjustment of the output voltage, the trolleys are coupled to the driving member with different plays to introduce a dead travel of the driving member relative to at least one trolley, which exceeds the spacing between two adjoining individual windings of the transformer. | ||||||
| 39 | Coil tuning apparatus | US551469 | 1975-02-20 | US3958196A | 1976-05-18 | James D. Benzie; Kenneth C. Lepper; Leslie K. Iwata |
| The method of and apparatus for changing the inductance of a high power air core coil through the process of selectively shorting out predetermined numbers of turns. The apparatus comprises a conductive belt which is positioned interior the coil whereby the problems of corona discharge from the winding contents are substantially reduced. Since the shorting conductor is a thin film of conductive material attached to a tape, the mass is very low and vibration forces applied to the unit have much less effect in producing interruptions of contact. | ||||||
| 40 | Variable transformer | US42133073 | 1973-12-03 | US3896370A | 1975-07-22 | MANZ AUGUST FREDERICK |
| The transformer device comprises a core having a coil winding wrapped about the core making a succession of turns. A predetermined area of each turn is divided into a conductive and a nonconductive surface segment respectively. At least two electrically conductive members are arranged for sliding engagement against the predetermined area of each turn along separate paths transverse to the direction of the winding with each path including one surface segment of each of the predetermined areas. The surface segments are arranged to alternate forming a checkered geometric pattern.
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