Patent classifications
H01F27/306
Integrated transformer and power converter
This disclosure provides an integrated transformer and a power converter, the integrated transformer includes: a magnetic core, including an upper cover, a lower cover, a first winding column and a second winding column; a printed wiring board, disposed between the upper cover and the lower cover, and including a first through hole corresponding to the first winding column and a second through hole corresponding to the second winding column; and a first winding, a second winding, a third winding and a fourth winding; the first winding and the third winding are wound on the first winding column and the second winding column respectively, the second winding and the fourth winding are provided at positions corresponding to the first through hole and the second through hole on the printed wiring board, and magnetic flux directions within the first winding column and the second winding column are opposite.
Method of forming a cast inductor apparatus
The invention comprises a method for manufacturing an inductor, comprising the steps of: casting a cast winding comprising an inner cavity; inserting a first inductor core subsection into the inner cavity; inserting a second inductor core subsection into the inner cavity; and mechanically coupling the first inductor core subsection to the second inductor core subsection to form an inductor core wound by the cast windings. The method of manufacturing optionally includes the steps of: forming at least a portion of the cast winding into an arced helical shape; forming the first inductor core subsection and the second inductor core subsection into elements of a torpid shaped inductor core; deforming the cast winding to physically allow the step of inserting the first inductor core subsection into the inner cavity; and/or deforming at least a portion of the cast winding into an arced helical coil shape after the step of inserting.
Magnetic components with electrically variable characteristics
A magnetic component includes a main magnetic core, a power winding coupled to the main magnetic core, a variable reluctance core element arranged in a flux path of the main magnetic core and including a saturable magnetic core and a control winding coupled to the saturable magnetic core. The control winding is isolated relative to the power winding and configured to selectively saturate a section of the saturable magnetic core.
MEDICAL SYSTEM WITH CONNECTOR FORMING AN EXTERNAL WINDING
A medical system comprising an internal unit; a transformer core; internal cabling comprising an internal winding around the transformer core; and an external unit comprising power supply circuitry and external cabling coupled to the power supply circuitry for enabling supply of power from the power supply circuitry to the internal unit via the transformer core. The external cabling comprises a connector including a first connector part and a second connector part; a first conductive current path between the power supply circuitry and the first connector part; a second conductive current path between the power supply circuitry and the second connector part; and a third conductive current path between the first connector part and the second connector part, conductively connecting the first connector part and the second connector part.
CORE ASSEMBLIES FOR MAGNETIC SATURATION DETECTOR WITHOUT REQUIREMENT FOR DC BIAS
Magnetic core assemblies include a skewing feature that introduces transverse components into the power flux density vector are disclosed herein. A magnetic core assembly comprises a lower core having a center section and an upper core having a center section. The center sections are aligned to form a center post. A power winding that receives current is wrapped around the center post. The core assembly further comprises a power flux density vector that has transverse and non-transverse components. The transverse components have a higher magnetic reluctance than the non-transverse components. When the assembly is used with a transverse winding, the transverse components from the magnetic core assembly produce a transverse voltage waveform on the transverse winding. The transverse voltage waveform may be observed to detect a change in the sign of the slope of the transverse voltage waveform. The change in the sign of the slope indicates magnetic saturation.
Reactor
A reactor including: a coil including a pair of winding portions that are arranged side by side; a magnetic core including inner core portions that are provided inside the winding portions, and an outer core portion that is exposed to the outside from the winding portions; and a casing that houses a combined member that includes the coil and the magnetic core combined with each other. The casing includes: a bottom plate on which the combined member is placed; and a side wall that stands on the bottom plate, and the side wall is provided with a cutout for the core, through which at least a portion of the outer core portion is exposed to the outside of the casing.
Reactor
A reactor has a coil and a loop-shaped magnetic core disposed extending inside and outside the coil. The coil has two winding portions that are disposed laterally side-by-side, and the magnetic core has two inner core portions that are disposed inside the winding portions, and two outer core portions that are disposed outside the winding portions and connect end portions of the two inner core portions. The reactor includes an inner resin portion obtained by filling a space between inner peripheral faces of the winding portions and the inner core portions, end face intervening members disposed between end faces of the winding portions and the outer core portions, and spacer pieces that are integrated with the end face intervening members and are disposed extending between an entirety of mutually opposing inward faces of the two winding portions.
Ignition coil for internal combustion engine and production method for the same
An ignition coil includes a not-illustrated coil, a plate assembly, and a case assembly. The plate assembly and the case assembly are combined with each other by laser welding at a recess and a rib (projection) which are respective abutting portions, thereby forming storage spaces for storing the coil.
Coil component
A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
Coil unit
A power-transmission-side coil unit includes: a housing including a metal case body and a resin cover, an electric device provided in the housing, a metal substrate disposed between the cover and the electric device and covering the electric device, and a power transmission coil. The case body includes a base portion, and a ring-shaped wall portion protruding toward the cover along the outer peripheral edge of base portion inside the outer peripheral edge of base portion. The metal substrate includes a partition wall disposed between the cover and the electric device, and a peripheral wall extending from the partition wall toward the base portion. An end portion of the peripheral wall is disposed in the D direction relative to the upper face of the ring-shaped wall portion. At least part of a lateral face of the peripheral wall is in contact with a lateral face of the ring-shaped wall portion.