Electronic device

Patent metadata

Field	Value
Publication number	US-10867747-B2
Application number	US-201816151595-A
Country	US
Kind code	B2
Filing date	Oct 4, 2018
Priority date	Feb 19, 2013
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

An inductor bridge is provided with a flexible flat plate-shaped element body, a first connector, and a second connector. The element body includes therein an inductor portion. The inductor portion is configured by a spiral conductor pattern. The first connector is provided on the element body and is connected to a first circuit. The second connector is provided on the element body and is connected to a second circuit.

First claim

What is claimed is:

1. An electronic device comprising:
an inductor bridge defining an element to bridge-connect a plurality of circuits;
a first mounting circuit portion that includes an antenna; and
a second mounting circuit portion; wherein
the first mounting circuit portion and the second mounting circuit portion are connected to each other through the inductor bridge;
the inductor bridge includes:
a flexible flat plate-shaped element body that includes a resin base material;
a first connecting portion that is provided on the element body and connected to the first mounting circuit portion;
a second connecting portion that is provided on the element body and connected to the second mounting circuit portion;
an inductor portion that is defined by a conductor pattern and connected between the first connecting portion and the second connecting portion; and
a wiring pattern that is provided between the inductor portion and the first connecting portion and connects the inductor portion and the first connecting portion; and

the inductor portion is provided at a position closer to the second connecting portion than to the first connecting portion.

2. The electronic device according to claim 1 , wherein, in a plan view of the first mounting circuit portion, the inductor portion is provided at a position farther away from the antenna in contact with the first mounting circuit portion than the first connecting portion is.

3. The electronic device according to claim 1 , wherein the inductor bridge includes a bending portion in a region between the first connecting portion and the inductor portion.

4. The electronic device according to claim 1 , wherein the inductor portion includes no bending portion.

5. The electronic device according to claim 1 , wherein the inductor bridge is arranged along at least one of a surface shape of the first mounting circuit portion and a surface shape of the second mounting circuit portion.

6. The electronic device according to claim 1 , wherein the first connecting portion and the second connecting portion are provided at different positions in a height direction.

7. The electronic device according to claim 1 , wherein
the element body includes a first end portion, a second end portion, and a bending portion between the first end portion and the second end portion;
the bending portion is a portion to be bent so as to include a bending line and is provided in a region in which the inductor portion is provided; and
the inductor portion has an elliptical shape of which a major axis is not perpendicular to the bending line.

8. The electronic device according to claim 1 , wherein the conductor pattern defining the inductor portion is a spiral conductor pattern of which a coil axis extends in a direction perpendicular or substantially perpendicular to a principal surface of the element body.

9. The electronic device according to claim 8 , wherein
the element body is a laminate including the resin base material;
the conductor pattern defining the inductor portion is provided over a plurality of layers; and
a plurality of conductor patterns are connected in parallel to each other.

10. The electronic device according to claim 1 , wherein
the element body has a longer direction; and
a length of the inductor portion in a direction perpendicular or substantially perpendicular to the longer direction is shorter than a length of the inductor portion in the longer direction.

11. The electronic device according to claim 1 , wherein
the element body is a laminate including the resin base material; and
the resin base material is made of a liquid crystal polymer.

12. An electronic device comprising:
an inductor bridge defining an element to bridge-connect a plurality of circuits;
a first mounting circuit portion that includes an antenna; and
a second mounting circuit portion; wherein
the first mounting circuit portion and the second mounting circuit portion are connected to each other through the inductor bridge; and
the inductor bridge includes:
a flexible flat plate-shaped element body that includes a resin base material, a first surface, and a second surface opposite to the first surface;
a first connecting portion that is provided on the first surface of the element body and connected to the first mounting circuit portion;
a second connecting portion that is provided on the element body and connected to the second mounting circuit portion;
an inductor portion that is defined by a conductor pattern and connected between the first connecting portion and the second connecting portion;
a wiring pattern that is provided between the inductor portion and the first connecting portion and connects the inductor portion and the first connecting portion; and
a bending portion in a region between the first connecting portion and the inductor portion, the bending portion bending such that the second surface of the element body is on an inner side of the bending portion.

13. The electronic device according to claim 12 , wherein, in a plan view of the first mounting circuit portion, the inductor portion is provided at a position farther away from the antenna in contact with the first mounting circuit portion than the first connecting portion is.

14. The electronic device according to claim 12 , wherein the inductor portion includes no bending portion.

15. The electronic device according to claim 12 , wherein the inductor bridge is arranged along at least one of a surface shape of the first mounting circuit portion and a surface shape of the second mounting circuit portion.

16. The electronic device according to claim 12 , wherein the first connecting portion and the second connecting portion are provided at different positions in a height direction.

17. The electronic device according to claim 12 , wherein
the element body includes a first end portion, a second end portion, and the bending portion between the first end portion and the second end portion;
the bending portion is a portion to be bent so as to include a bending line and is provided in a region in which the inductor portion is provided; and
the inductor portion has an elliptical shape of which a major axis is not perpendicular to the bending line.

18. The electronic device according to claim 12 , wherein the conductor pattern defining the inductor portion is a spiral conductor pattern of which a coil axis extends in a direction perpendicular or substantially perpendicular to a principal surface of the element body.

19. The electronic device according to claim 18 , wherein
the element body is a laminate including the resin base material;
the conductor pattern defining the inductor portion is provided over a plurality of layers; and
a plurality of conductor patterns are connected in parallel to each other.

20. The electronic device according to claim 12 , wherein
the element body has a longer direction; and
a length of the inductor portion in a direction perpendicular or substantially perpendicular to the longer direction is shorter than a length of the inductor portion in the longer direction.

21. The electronic device according to claim 12 , wherein
the element body is a laminate including the resin base material; and
the resin base material is made of a liquid crystal polymer.

Assignees

• Murata Manufacturing Co

Inventors

• Yosui Kuniaki
• Kato Noboru
• Wakabayashi Yuki
• Okamoto Bunta
• Ikeda Naoto
• Kurihara Takeshi

Classifications

• H01F27/363 Primary

  made of electrically conductive material · CPC title

• H05K2201/10189

  Non-printed connector · CPC title

• H01F27/40

  Structural association with built-in electric component, e.g. fuse · CPC title

• H05K1/165

  incorporating printed inductors · CPC title

• H05K2201/09263

  Meander · CPC title