Coil component and electronic circuit
AssigneeSumida Corporation
InventorTakayuki Yamaguchi
Life of this patent
Estimating the term…
Abstract
Provided are a coil component capable of preventing internal residence of air bubbles after encapsulated with a resin and an electronic circuit incorporating such coil component. The coil component (10) includes: a columnar core having a flange portion (210) which is formed to have a diameter larger than that of a shaft portion having a coil wound therearound; and an annular core having an opening (110) through which the columnar core is inserted, the perimeter of the inner flange face of the flange portion (210) being configured by externally disposed regions (211,212,213,214) which are positioned outside the inner face of the opening (110) in the radial direction, and internally disposed regions (215,216,217,218) which are positioned inside the inner face of the opening (110) in the radial direction.
Claims16
A coil component comprising:
- a columnar core including a shaft and a flange provided at one end of the shaft, a diameter of the flange being larger than a diameter of the shaft, an outer flange periphery of the flange having first and second flange peripheries;
- a wire wound around the shaft forming a coil;
- and
- an annular core including a housing and an opening provided in the housing, the columnar core being inserted into the housing of the annular core so that the opening is partially occupied by the flange in a plan view,
- wherein the first flange periphery is overlapped with a first closest inner edge of the housing in a plan view, and
- the second flange periphery is spaced apart from a second closest inner edge of the housing in the plan view.
A coil component comprising:
- a columnar core having a shaft, the shaft having a coil wound therearound, the columnar core having a flange formed at least at one end of the shaft, a diameter of the flange being larger than a diameter of the shaft;
- and
- an annular core having an opening through which the columnar core is inserted, the annular core having a housing which houses the columnar core inserted through the opening,
- wherein a perimeter of an inner flange face of the flange includes an externally disposed region which is located radially outside an inner face of the opening and an internally disposed region which is located radially inside the inner face of the opening,
- wherein the annular core has a recess in one face in which the opening is formed,
- the externally disposed region is fitted to the recess,
- wherein the flange has an apex in an edge thereof, the apex is located in the externally disposed region,
- the recess has a corner which corresponds to the shape of the apex, and
- after the apex is fitted in the corner, relative movement between the columnar core and the annular core is limited.
A coil component comprising:
- a columnar core having a shaft, the shaft having a coil wound therearound, the columnar core having a flange formed at one end of the shaft, a diameter of the flange being larger than a diameter of the shaft;
- and
- an annular core having an opening through which the columnar core is inserted, the annular core having a housing which houses the columnar core inserted through the opening,
- wherein a perimeter of an inner flange face of the flange includes an externally disposed region which is located radially outside an inner face of the opening and an internally disposed region which is located radially inside the inner face of the opening,
- wherein the flange is in a nearly rectangular shape,
- the opening is in a nearly circular shape,
- an inner diameter of the opening is larger than one side of the flange, and the inner diameter of the opening is shorter than a diagonal of the flange,
- wherein another flange is formed at the other end of the shaft opposite to the one end of the shaft, and
- the another flange has a plurality of notches, and one of the notches is cut deeper than the other of the notches.
Dependencies are inferred from the claim text.