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US 9,870,857 B2Granted
Common-mode choke coil
AssigneeMurata Manufacturing Co., Ltd.
InventorsShinya Hirai, Yuki Kanbe
Life of this patent
Estimating the term…
Abstract
A common-mode choke coil having: a core that extends in a predetermined direction; and first and second wires that are intertwined and wound together around the core.
Claims9
A common-mode choke coil comprising:
- a core configured to extend in a predetermined direction;
- first and second wires intertwined and wound together around the core, wherein the first wire is only one wire and the second wire is only one wire;
- first and second external electrodes provided at both ends of the core so as to be arranged in the predetermined direction;
- and
- third and fourth external electrodes provided at the both ends of the core so as to be separated from the first and second external electrodes, respectively, in a first direction perpendicular to the predetermined direction, wherein:
- in a plan view from a second direction perpendicular to both the predetermined direction and the first direction, a first end portion of the first wire is untwisted from a first end portion of the second wire at a first corner of the core;
- the first end portion of the first wire and the first end portion of the second wire are connected to the first external electrode and the third external electrode, respectively;
- in the plan view from the second direction, a second end portion of the first wire is untwisted from a second portion of the second wire at a second corner of the core diagonal to the first corner;
- the second end portion of the first wire and the second end portion of the second wire are connected to the second external electrode and the fourth external electrode, respectively;
- and
- at least a part of the first wire of the intertwined and wound first and second wires makes contact with at least a part of the second wire of an adjacent segment of the intertwined and wound first and second wires.
8 more elements
A common-mode choke coil comprising:
- a core configured to extend in a predetermined direction;
- first and second wires intertwined and wound together around the core, wherein at least a part of the intertwined and wound first and second wires makes contact with an adjacent segment of the intertwined and wound first and second wires with a gap between the intertwined and wound first and second wires and the adjacent segment of the intertwined and wound first and second wires, and wherein the first wire is only one wire and the second wire is only one wire;
- first and second external electrodes provided at both ends of the core so as to be arranged in the predetermined direction;
- and
- third and fourth external electrodes provided at the both ends of the core so as to be separated from the first and second external electrodes, respectively, in a first direction perpendicular to the predetermined direction, wherein:
- in a plan view from a second direction perpendicular to both the predetermined direction and the first direction, a first end portion of the first wire is untwisted from a first end portion of the second wire at a first corner of the core;
- the first end portion of the first wire and the first end portion of the second wire are connected to the first external electrode and the third external electrode, respectively;
- in the plan view from the second direction, a second end portion of the first wire is untwisted from a second portion of the second wire at a second corner of the core diagonal to the first corner;
- the second end portion of the first wire and the second end portion of the second wire are connected to the second external electrode and the fourth external electrode, respectively;
- and
- at least a part of the first wire of the intertwined and wound first and second wires makes contact with at least a part of the second wire of an adjacent segment of the intertwined and wound first and second wires.
8 more elements
Dependencies are inferred from the claim text.