US 12,014,865 B2
Inductor and method for manufacturing the same
Hiroshi Okuizumi, Nagaokakyo (JP); and Kozo Sato, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 25, 2020, as Appl. No. 17/033,536.
Claims priority of application No. 2019-175758 (JP), filed on Sep. 26, 2019; and application No. 2020-107014 (JP), filed on Jun. 22, 2020.
Prior Publication US 2021/0098184 A1, Apr. 1, 2021
Int. Cl. H01F 5/00 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 41/02 (2006.01); H01F 41/063 (2016.01)
CPC H01F 27/29 (2013.01) [H01F 27/255 (2013.01); H01F 27/2823 (2013.01); H01F 41/0246 (2013.01); H01F 41/063 (2016.01)] 3 Claims
OG exemplary drawing
 
1. An inductor comprising:
a body that is rectangular parallelepiped-shaped and that includes a magnetic portion containing magnetic powder and a coil embedded in the magnetic portion; and
a pair of outer electrodes provided on the body and connected to the coil,
wherein the coil includes
a wound portion configured by a conductive wire wound in an upper layer and a lower layer, the conductive wire having a pair of wide surfaces that are opposite to each other, and
a pair of lead-out portions, one of which extends from one end portion of the wound portion located at an outermost periphery of the upper layer and an other of which extends from an other end portion of the wound portion located at an outermost periphery of the lower layer,
wherein
the pair of lead-out portions include a first lead-out portion and a second lead-out portion,
one wide surface of a distal end portion of the first lead-out portion is exposed at a mounting surface of the body, a first surface of the body that is adjacent to the mounting surface, and a corner portion between the mounting surface and the first surface,
one wide surface of a distal end portion of the second lead-out portion is exposed at the mounting surface of the body, a second surface of the body that is different from the first surface of the body and adjacent to the mounting surface, and a corner portion between the mounting surface and the second surface,
one of the pair of outer electrodes covers the wide surface of the first lead-out portion that are exposed at the surfaces of the body,
an other of the pair of outer electrodes covers the wide surface of the second lead-out portion that are exposed at the surfaces of the body,
the pair of wide surfaces of the conductive wire each comprise an inner wide surface facing toward a winding axis and an outer wide surface facing away from the winding axis,
each lead-out portion includes a twisted portion between a corresponding one of the end portions of the wound portion and the distal end portion of the lead-out portion,
the inner wide surfaces of a wound-portion-side end portion of the twisted portion are parallel to the winding axis, and
the inner wide surfaces of a distal-side end portion of the twisted portion are twisted towards the mounting surface.