Inductor bridge and electronic device

Patent metadata

Field	Value
Publication number	US-10128040-B2
Application number	US-201715494697-A
Country	US
Kind code	B2
Filing date	Apr 24, 2017
Priority date	Feb 19, 2013
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

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 inductor bridge comprising:
a flexible flat plate-shaped element body;
a first connecting portion that is provided on the element body and structured to be connected to a first circuit;
a second connecting portion that is provided on the element body and structured to be connected to a second circuit; and
an inductor portion that is connected between the first connecting portion and the second connecting portion; wherein
the inductor portion includes a plurality of conductor patterns of which a coil axis is oriented in a direction perpendicular or substantially perpendicular to a principal surface of the element body;
the plurality of conductor patterns are provided over a plurality of layers;
the plurality of conductor patterns have a helical shape over the plurality of layers;
the plurality of conductor patterns are provided in a position in which the plurality of conductor patterns face each other between the plurality of layers; and
among the plurality of conductor patterns, a line width of the conductor pattern that is closest to the first connecting portion on a path and a line width of the conductor pattern that is closest to the second connecting portion on a path are thinner than a line width of the conductor patterns of other layers.

2. The inductor bridge according to claim 1 , wherein
the first connecting portion is provided on a first end portion of the element body;
the second connecting portion is provided on a second end portion of the element body; and
the element body includes a bending portion between the first end portion and the second end portion.

3. The inductor bridge according to claim 2 , wherein the bending portion is arranged at a position other than a line passing through a center of the inductor portion.

4. The inductor bridge according to claim 1 , wherein the first connecting portion is structured to be electrically connected to the first circuit by mechanical contact and the second connecting portion is structured to be electrically connected to the second circuit by mechanical contact.

5. An electronic device comprising:
the inductor bridge according to claim 1 ;
the first circuit; and
the second circuit; wherein
the first circuit and the second circuit are connected to each other through the inductor bridge.

6. An inductor bridge comprising:
a flexible flat plate-shaped element body;
a first connecting portion that is provided on the element body and structured to be connected to a first circuit;
a second connecting portion that is provided on the element body and structured to be connected to a second circuit; and
an inductor portion that is connected between the first connecting portion and the second connecting portion; wherein
the inductor portion includes a plurality of conductor patterns of which a coil axis is oriented in a direction perpendicular or substantially perpendicular to a principal surface of the element body;
the plurality of conductor patterns are provided over a plurality of layers;
the plurality of conductor patterns have a helical shape over the plurality of layers;
the plurality of conductor patterns are provided in a position in which the plurality of conductor patterns face each other between the plurality of layers;
the plurality of conductor patterns includes:
a first conductor pattern that is closest to the first connecting portion or the second connecting portion on a path; and
a second conductor pattern of a layer that is adjacent to the first conductor pattern; and

a distance between the first conductor pattern and the second conductor pattern is larger than a distance between the conductor patterns in other layers that are adjacent to the first conductor pattern.

7. The inductor bridge according to claim 6 , wherein
the first connecting portion is provided on a first end portion of the element body;
the second connecting portion is provided on a second end portion of the element body; and
the element body includes a bending portion between the first end portion and the second end portion.

8. The inductor bridge according to claim 7 , wherein the bending portion is arranged at a position other than a line passing through a center of the inductor portion.

9. The inductor bridge according to claim 6 , wherein the first connecting portion is structured to be electrically connected to the first circuit by mechanical contact and the second connecting portion is structured to be electrically connected to the second circuit by mechanical contact.

10. An electronic device comprising:
the inductor bridge according to claim 6 ;
the first circuit; and
the second circuit; wherein
the first circuit and the second circuit are connected to each other through the inductor bridge.

11. An electronic device comprising:
an inductor bridge; and
a planar conductor; wherein
the inductor bridge comprises:
a flexible flat plate-shaped element body;
a first connecting portion that is provided on the element body and structured to be connected to a first circuit;
a second connecting portion that is provided on the element body and structured to be connected to a second circuit; and
an inductor portion that is connected between the first connecting portion and the second connecting portion;

the inductor portion includes a plurality of conductor patterns of which a coil axis is oriented in a direction perpendicular or substantially perpendicular to a principal surface of the element body;
the plurality of conductor patterns are provided over a plurality of layers; and
a layer on which a conductor pattern of the plurality of conductor patterns with a larger number of turns among the plurality of conductor patterns is provided is arranged on a layer spaced farther away from the planar conductor.

12. The electronic device according to claim 11 , wherein
the plurality of conductor patterns are provided in a position in which the plurality of conductor patterns face each other between the plurality of layers.

13. The electronic device
according to claim 11 ,
wherein
the plurality of conductor patterns are provided in a position in which a capacitance is generated between the plurality of conductor patterns and the planar conductor.

14. The electronic device according to claim 13 , wherein the capacitance and the inductor portion define a low pass filter.

Assignees

• Murata Manufacturing Co

Inventors

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

Classifications

• H01F2017/006

  flexible printed inductors · CPC title

• H01F2027/2809

  on stacked layers · CPC title

• H03H7/0115

  comprising only inductors and capacitors (H03H7/075, H03H7/09, H03H7/12, H03H7/13 take precedence) · CPC title

• H05K1/028

  Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence) · CPC title

• H03H7/0138

  Electrical filters or coupling circuits · CPC title