Abstract: The present invention provides an LC noise filter consisting of a capacitance and an inductance, including a first insulation sheet having a plurality of portions folded alternately in the opposite directions and stacked one above another; a first conductor applied to the insulation sheet at one side and adapted to form a coil having a given number of turns when the folded portions of the insulation sheet are folded alternately in the opposite directions and stacked one above another; and a second conductor applied to the insulation sheet at the other side and located substantially opposite to the first conductor to form a capacitance therebetween, whereby the filter can eliminate incoming noises without creation of any undesirable phenomenon such as ringing or the like.

Abstract: An inductive electric component, in particular an electric transformer, includes a coil body having coil body flanges defining a winding space, and contact pin strips integrally formed onto the coil body flanges, the contact pin strips having extensions and having free ends with undercuts formed therein being limited outwardly by the extensions. A two-part magnet core has halves with center bosses to be pushed together on the coil body with the center bosses engaging the coil body and resting on the coil body flanges and on the contact pin strips. A spring cap is to be slipped onto the magnet core disposed on the coil body for retaining the magnet core halves on the coil body. The cap has a yoke with a middle region. The yoke is concave at least in the middle region, and the yoke has legs on two opposite sides and spring hoops on two other opposite sides. The legs each have detent protrusions locking into the undercuts with the spring cap slipped on.

Abstract: A signal discriminator which comprises a plurality of divided magnetic cores which surround a peripheral part of a cable when the plurality of divided magnetic cores are integrated. A resin case formed of a plurality of sections is capable of opening and closing and accommodates the plurality of divided magnetic cores. A press-contacting device press-contacts at least one of the plurality of divided magnetic cores and a corresponding one of the plurality of sections of the resin case. Engaging protrusions on the plurality of divided magnetic cores engage with corresponding recesses on the plurality of sections of the resin case.

Abstract: A secondary ignition coil is wound around a bobbin having a plurality of slots therein. The slots are spaced around the cylindrical wall of the bobbin to provide for the rapid and uniform flow of resinous potting material through the slots in the cylindrical wall into the coil. Resin also flows from the outer portion of the coil winding into said coil winding.

Abstract: A current transformer, which is able to be mounted with a switching bar on a conductor having a high voltage, has a coil surrounding a U-shaped iron yoke. A U-shaped ground iron is swivel-mounted on one leg of the iron yoke and is supported at a break point. Springs are anchored on a housing for the transformer. When the current transformer is mounted, the conductor moves the ground iron in a closing position and is maintained in such position by the springs.

Abstract: A mini-transformer features an iron or ferrite core (2) and primary and secondary windings (3, 4). Portions of the windings (3, 4) which extend beyond the iron or ferrite core (2) are covered on both sides with a thermoplastic material forming a lid (6, 7). The two lids or end bells (6, 7) are combined into one piece by means of first bars (12), which extend through the hollow spaces (9) between the windings (3, 4) and the iron or ferrite core (2) and fill them, and that the laminated iron or ferrite core (2) is fixed in itself by second bars (14) connecting the two lids (6, 7).

Abstract: An ignition coil assembly for an internal combustion engine includes a primary coil, a secondary coil, at least one bobbin, a core, a first resin member and a casing. The primary coil and said secondary coil are wound on the bobbin. The core has core elements with a gap there-between through which the primary and secondary coils are magnetically coupled to one each other. The casing accommodates the primary and secondary coils, the bobbin and the core. And the first resin member covers a part of the core elements, the part which are confronted with said secondary coil, and the first resin member is accommodated in the casing.

Abstract: A horizontal linearity correction coil is used for a television receiver having a cathode ray tube of a wide deflection angle and has excellent productivity, quality and loading respectively. The ferrite magnetic core has the flanges at both ends and the middle and has a hollow shape at one winding core portion of the ferrite magnetic core. The windings are wound around the winding core portions and the permanent magnets are combined to both end flanges.

Abstract: An easy to assemble transformer for use in an electronics module of an electric vehicle. The transformer can be assembled from the "top down," thus alleviating the need to build the transformer as a subassembly unit. During manufacture of the transformer, windings are wound onto a thermally conductive coil form. Next upper and lower E-shaped core members are inserted into openings in the top and bottom of the form so that the side legs and the center legs of the E's touch and are in alignment. The thermally conductive coil form has a portion that touches a cold plate when the transformer is mounted on the cold plate. The transformer is further secured to the cold plate by a mounting bracket.

Abstract: The primary windings and part of the magnetic circuit of an automobile battery charging transformer are mounted in a separable multiple panel inductive charge coupler which is insertable into and removable from corresponding inductive charge receptacle slots in the automobile adjacent the transformer secondary windings and magnetic structure. The use of thin primary and secondary coils decreases the resistance losses in the coils. When the inductive charge coupler is in place and is energized, the primary winding energizes the secondary winding to permit charging of the batteries on the automobile.

Abstract: A coil contains a winding part and a core. The winding part is formed of plural laminated sheets each having a winding pattern. Plural winding patterns are formed on at least one sheet. Each of the winding patterns has a different number of turns, and the winding patterns are formed around the core so as to be coaxial in the same winding direction. The winding patterns formed on the other sheets are connected via a through-hole, and an end of the winding pattern is connected to an input/output portion formed outside of the sheet.

Abstract: A common mode choke has a generally rectangular ferrite body for surface mounting on a printed circuit board. First and second spaced apart slotted openings extend vertically between the top face and the bottom face of the ferrite body. At least one pair of electrical conductors extend along parallel paths from the bottom face through the first slotted opening to the top face, along a portion of the top face, and back down through the second slotted opening to the bottom face. One pair of opposing side faces preferably has lower portions extending outwardly past a plane of the bottom face to thereby serve as a support to mount the bottom face of the ferrite body in spaced relation from the circuit board. The electrical conductors may then extend outwardly from the bottom face of the ferrite body for electrical connection through corresponding openings of a circuit board or extend laterally outwardly for electrical connection to corresponding portions of the circuit board in a gull wing configuration.

Abstract: A magnetically variable inductor for high power, high frequency applications which includes a solenoid with a magnetic core therein, disposed coaxially around a conductor for carrying the high power, high frequency signal and a variable current source coupled with the solenoid so that a manipulation of the current through the solenoid results in a variable inductance for said conductor. Also disclosed are additional features of ferrite rings disposed around each end of the magnetic core, a shield disposed between the core and the solenoid, and a sheath disposed around the solenoid.

Abstract: A stationary reduction apparatus is arranged so that coil groups comprising plate type (or disc type) coils, which are stacked up in multiple layers with spacers inserted therebetween to traverse through a core whereby a refrigerant may pass through inter-layer clearances, are provided and divided into a plurality of coil sub-groups and every other coil sub-group of the divided coil sub-groups is surrounded by a refrigerant guide which is provided with an opening on its internal periphery and refrigerant flow ports on its external periphery, and the refrigerant is introduced into the refrigerant guide to flow in a horizontal direction through respective inter-layer clearances of the stacked-up coil groups, thereby the coil groups are effectively cooled without accelerating the velocity of refrigerant flow.

Abstract: A connecting member is fixedly mounted in a predetermined location so as to penetrate a closed space formed with a ferrite core, and an end of a first lead wire is inserted and connected with an engagement part formed at one end part of the connecting member, and an end of a second lead wire is inserted and connected with an engagement part formed at the other end part of the connecting member, thereby, the trigger winding is formed.

Abstract: The magnetic circuit (1) is made in a single piece or consists of a stack of identically-shaped sheets. The height (H) of the air gap (2) is greater than the thickness (E) of a coil (5), enabling said coil to be inserted through the air gap. This structure is easily assembled during the mass production of current sensors which use such circuits.

Abstract: A stationary reduction apparatus is arranged so that coil groups comprising plate type (or disc type) coils, which are stacked up in multiple layers with spacers inserted therebetween to traverse through a core whereby a refrigerant may pass through inter-layer clearances, are provided and divided into a plurality of coil sub-groups and every other coil sub-group of the divided coil sub-groups is surrounded by a refrigerant guide which is provided with an opening on its internal periphery and refrigerant flow ports on its external periphery, and the refrigerant is introduced into the refrigerant guide to flow in a horizontal direction through respective inter-layer clearances of the stacked-up coil groups, thereby the coil groups are effectively cooled without accelerating the velocity of refrigerant flow.

Abstract: A transformer in which the primary coil and the secondary coil are insulated from the iron laminations which form part of its flux paths by insulated covers which snap-on to the primary and secondary coils.

Abstract: A choke coil apparatus for an electromagnetic range comprises an improved ferrite core, so as to prevent an increasing in temperature of the choke coil. The ferrite core in a multiangular bar-shape forms a plurality of ventilation spaces between the choke coil and the ferrite core, thereby air-cooling the choke coil by the air flowing in the ventilation space.

Abstract: An ignition coil assembly for an internal combustion engine includes at least one first laminated core contained in a housing and having a plurality of first magnetic path connection end faces exposed to the inside of the housing and at least one second laminated core having a plurality of second magnetic path connection end faces each opposing to one of the first magnetic path connection end faces through a thin gap. A primary coil and secondary coil are wound on the second laminated core, and a plurality of soft waterproof layers are formed on inner walls of the housing to cover the first magnetic path connection end faces of the first laminated core.