Coil component

Patent metadata

Field	Value
Publication number	US-11854732-B2
Application number	US-201916668700-A
Country	US
Kind code	B2
Filing date	Oct 30, 2019
Priority date	Oct 31, 2018
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

Disclosed herein is an apparatus that includes a substrate having first and second surfaces opposite to each other, a first coil pattern formed on the first surface of the substrate, and a second coil pattern formed on the second surface of the substrate. The first coil pattern includes first and second lines, and the second coil pattern includes third and fourth lines. The first line is greater in a number of turn than the second line, and the third line is greater in a number of turn than the fourth line. The first line is connected to the fourth line, and the third line is connected to the second line.

First claim

What is claimed is:

1. A coil component comprising:
a first coil part spirally wound in a plurality of turns; and
a second coil part spirally wound in a plurality of turns,
wherein at least an innermost peripheral turn of the first coil part is divided into a plurality of lines including first and second lines by a spiral-shaped slit,
wherein at least an innermost peripheral turn of the second coil part is divided into a plurality of lines including third and fourth lines by a spiral-shaped slit,
wherein a first angular distance of the innermost peripheral turn of the first line formed by a first virtual line and an inner peripheral end of the first line is larger than a second angular distance of the innermost peripheral turn of the second line formed by the first virtual line and an inner peripheral end of the second line,
wherein a third angular distance of the innermost peripheral turn of the third line formed by a second virtual line and an inner peripheral end of the third line is larger than a fourth angular distance of the innermost peripheral turn of the fourth line formed by the second virtual line and an inner peripheral end of the fourth line,
wherein the inner peripheral end of the first line is connected to the inner peripheral end of the fourth line,
wherein the inner peripheral end of the second line is connected to the inner peripheral end of the third line, and
wherein at least the innermost peripheral turn of each of the first and second coil parts is divided into n lines, where n is an integer more than 1,
wherein a total angular distance of the n lines constituting the innermost peripheral turn of the first coil part is n/2 turns, and
wherein a total angular distance of the n lines constituting the innermost peripheral turn of the second coil part is n/2 turns.

2. The coil component as claimed in claim 1 ,
wherein the first line is positioned peripherally outside the second line, and
wherein the third line is positioned peripherally outside the fourth line.

3. The coil component as claimed in claim 1 ,
wherein at least the innermost peripheral turn of the first coil part is divided into three lines including the first and second lines, and a fifth line,
wherein at least the innermost peripheral turn of the second coil part is divided into three lines including the third and fourth lines, and a sixth line,
wherein any one of the first, second and fifth lines is ½ turns, and remaining two thereof are one turn in total, and
wherein any one of the third, fourth, and sixth lines is ½ turns, and remaining two thereof are one turn in total.

4. The coil component as claimed in claim 3 ,
wherein any one of the first, second and fifth lines is radially sandwiched between remaining two thereof, and
wherein any one of the third, fourth and sixth lines is radially sandwiched between remaining two thereof.

5. The coil component as claimed in claim 1 ,
wherein at least the innermost peripheral turn of the first coil part is divided into four lines including the first and second lines, and fifth and seventh lines,
wherein at least the innermost peripheral turn of the second coil part is divided into four lines including the third and fourth lines, and sixth and eighth lines,
wherein any two of the first, second, fifth and seventh lines are one turn in total, and remaining two thereof are one turn in total, and
wherein any two of the third, fourth, sixth and eighth lines are one turn in total, and remaining two thereof are one turn in total.

6. The coil component as claimed in claim 1 ,
wherein the first coil part is formed on one surface of an insulating substrate, and
wherein the second coil part is formed on other surface of the insulating substrate.

7. The coil component as claimed in claim 6 , wherein the substrate is transparent or translucent.

8. The coil component as claimed in claim 7 ,
wherein each turn of the first and second coil parts has a circumferential region in which a radial position is not changed and a shift region in which the radial position is shifted, and
wherein the circumferential region of each turn of the first coil part and the circumferential region of each turn of the second coil part coincide with each other in planar position.

9. A coil component comprising:
a first coil part spirally wound in a plurality of turns; and
a second coil part spirally wound in a plurality of turns,
wherein at least an innermost peripheral turn of the first coil part is divided into a plurality of lines including first and second lines by a spiral-shaped slit,
wherein at least an innermost peripheral turn of the second coil part is divided into a plurality of lines including third and fourth lines by a spiral-shaped slit,
wherein a first angular distance of the innermost peripheral turn of the first line formed by a first virtual line and an inner peripheral end of the first line is larger than a second angular distance of the innermost peripheral turn of the second line formed by the first virtual line and an inner peripheral end of the second line,
wherein a third angular distance of the innermost peripheral turn of the third line formed by a second virtual line and an inner peripheral end of the third line is larger than a fourth angular distance of the innermost peripheral turn of the fourth line formed by the second virtual line and an inner peripheral end of the fourth line,
wherein the inner peripheral end of the first line is connected to the inner peripheral end of the fourth line,
wherein the inner peripheral end of the second line is connected to the inner peripheral end of the third line,
wherein at least the innermost peripheral turn of each of the first and second coil parts is divided into n lines, where n is integer more than 1,
wherein a total angular distance of the n lines constituting the innermost peripheral turn of the first coil part is n/2 turns,
wherein a total angular distance of the n lines constituting the innermost peripheral turn of the second coil part is n/2 turns,
wherein at least the innermost peripheral turn of the first coil part is divided into two lines including the first and second lines,
wherein at least the innermost peripheral turn of the second coil part is divided into two lines including the third and fourth lines,
wherein each of the innermost peripheral turns of the first and third lines is ¾ turns, and
wherein each of the innermost peripheral turns of the second and fourth lines is ¼ turns.

Assignees

• Tdk Corp

Inventors

• Hayama Junpei
• Chiyo Noritaka
• Kaneko Shigeru
• Moriki Tomohiro
• Ohishi Takahiro
• Tomonari Toshio

Classifications

• H01F27/2804 Primary

  Printed windings · CPC title

• H01F27/06

  Mounting, supporting or suspending transformers, reactors or choke coils {not being of the signal type} · CPC title

• H01F41/041

  Printed circuit coils (apparatus or processes for manufacturing printed circuits in general H05K3/00) · CPC title

• H01F2027/2809

  on stacked layers · CPC title

• H01F5/003 Primary

  Printed circuit coils · CPC title