Mounting structure of flexible inductor and electronic device
A flexible inductor includes a first input/output terminal, a second input/output terminal, and a sheet-shaped and coil-shaped conductive pattern that includes a first end, which is connected to the first input/output terminal, and a second end, which is connected to the second input/output terminal, the first input/output terminal, the second input/output terminal, and the coil-shaped conductive pattern being provided on a flexible base member. The flexible inductor is positioned in the vicinity of a metallic part, which is disposed in a housing, or a metallic portion of the housing. The flexible inductor is bent and mounted in the housing in such a manner that one side of the coil-shaped conductive pattern that is close to the metallic part or the metallic portion is the inner side of the bent flexible inductor.
1. A mounting structure comprising:
a housing; and
a flexible inductor including a sheet-shaped flexible base member including an inductor, the sheet-shaped flexible base member including:
a first end portion;
a second end portion located on a side opposite to the first end portion;
a first input/output terminal in contact with the first end portion;
a second input/output terminal in contact with the second end portion; and
a sheet-shaped and coil-shaped conductive pattern that includes a first end connected to the first input/output terminal, and a second end connected to the second input/output terminal, and that is wound a plurality of times; wherein
the flexible inductor is positioned near a metallic part disposed in the housing, or a metallic portion of the housing;
the flexible inductor is bent and mounted in the housing in such a manner that one side of the coil-shaped conductive pattern that is close to the metallic part or the metallic portion is on an inner side of a bent portion of the flexible inductor;
the first input/output terminal of the flexible inductor is connected to a first substrate; and
the second input/output terminal of the flexible inductor is connected to a second substrate different from the first substrate.
2. The mounting structure according to claim 1 , wherein
the flexible base member includes a first main surface and a second main surface;
the first main surface is spaced farther apart from the metallic part or the metallic portion than the second main surface; and
the first main surface includes the coil-shaped conductive pattern.
3. The mounting structure according to claim 1 , wherein the metallic part or the metallic portion is a ground electrode of a wiring board disposed in the housing.
4. The mounting structure according to claim 1 , wherein the flexible base member is made of resin.
5. The mounting structure according to claim 1 , wherein the flexible base member has a rectangular or substantially rectangular shape.
6. The mounting structure according to claim 1 , wherein the flexible base member includes interlayer connection conductors that connect the first input/output terminal, the second input/output terminal, and the conductive pattern.
7. The mounting structure according to claim 1 , further comprising a resist layer on a top surface of the flexible base member.
8. The mounting structure according to claim 1 , wherein the flexible base member includes a plurality of resin base members stacked on each other.
9. An electronic device comprising:
a flexible inductor including a sheet-shaped flexible base member including:
a first end portion;
a second end portion located on a side opposite to the first end portion;
a first input/output terminal in contact with the first end portion;
a second input/output terminal in contact with the second end portion; and
a sheet-shaped and coil-shaped conductive pattern that is wound a plurality of times; and
a housing configured to accommodate the flexible inductor; wherein
the flexible inductor is positioned near a metallic part disposed in the housing, or a metallic portion of the housing;
the flexible inductor is bent and mounted in the housing such that one side of the coil-shaped conductive pattern that is close to the metallic part or the metallic portion is on an inner side of a bent portion of the flexible inductor;
the first input/output terminal of the flexible inductor is connected to a first substrate; and
the second input/output terminal of the flexible inductor is connected to a second substrate different from the first substrate.
10. The electronic device according to claim 9 , wherein the metallic part or the metallic portion is a ground electrode of a wiring board disposed in the housing.
11. The electronic device according to claim 9 , further comprising a first wiring board and a second wiring board, wherein the flexible inductor is connected to and between the first wiring board and the second wiring board.
12. The electronic device according to claim 11 , wherein the first wiring board is an antenna substrate and the second wiring board is an RF circuit board.
13. The electronic device according to claim 9 , wherein the electronic device is one of a phone and a tablet terminal.
14. The electronic device according to claim 9 , wherein the flexible base member is made of resin.
15. The electronic device according to claim 9 , wherein the flexible base member has a rectangular or substantially rectangular shape.
16. The electronic device according to claim 9 , wherein the flexible base member includes interlayer connection conductors that connect the first input/output terminal, the second input/output terminal, and the conductive pattern.
17. The electronic device according to claim 9 , further comprising a resist layer on a top surface of the flexible base member.
18. The electronic device according to claim 9 , wherein the flexible base member includes a plurality of resin base members stacked on each other.