# US 2014/0153209 A1 · Coil component and display device including the same

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- Number: US 2014/0153209 A1
- Document ID: US20140153209A1
- Status: Published application
- Kind: A1
- Application number: 13/770,775
- Filed: 2013-02-19
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Ki Hung NAM; Duck Jin AN; Soon Young KWON
- Web page: https://patentgrep.com/patent/US20140153209A1

## CPC

- H01F 5/02: wound on non-magnetic supports, e.g. formers
- H01F 27/2823: {Wires (H01F27/2866 takes precedence)}
- H01F 27/325: {Coil bobbins (formers for coils in general H01F5/02)}
- H01F 27/346: {Preventing or reducing leakage fields (using magnetic shields H01F27/36; using auxiliary windings H01F27/38)}
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES

## Abstract

There are provided a coil component capable of decreasing leakage inductance and a display device including the same. The coil component includes a cylindrical body part having a plurality of coils wound and stacked on an outer peripheral surface thereof; and one or more spacing parts formed on the outer peripheral surface of the body part to uniformly distribute the coils directly wound on the body part.

## Claims

### Claim 1

A coil component, comprising:
a cylindrical body part having a plurality of coils wound and stacked on an outer peripheral surface thereof; and
one or more spacing parts formed on the outer peripheral surface of the body part to uniformly distribute the coils directly wound on the body part.

### Claim 2 (depends on 1)

The coil component of claim 1, wherein the spacing parts are protruded from the body part while having a height equal to or less than a diameter of the coil.

### Claim 3 (depends on 2)

The coil component of claim 2, wherein the spacing parts are formed to have a partition wall shape and include one or more skip grooves.

### Claim 4 (depends on 2)

The coil component of claim 2, wherein the spacing parts are formed as a plurality of protrusions.

### Claim 5 (depends on 2)

The coil component of claim 2, wherein a space between two adjacent spacing parts is formed to have a width corresponding to the diameter of the coil.

### Claim 6 (depends on 2)

The coil component of claim 2, wherein the coils are stacked and wound on ends of the spacing parts.

### Claim 7 (depends on 1)

The coil component of claim 1, wherein the spacing parts are formed as grooves in the body part, the groove having a depth equal to or shallower than a diameter of the coil.

### Claim 8 (depends on 1)

The coil component of claim 1, wherein the coils directly wound on the body part form a continuous outer peripheral surface, evenly with the spacing parts.

### Claim 9

A coil component, comprising:
a cylindrical body part having uneven portions formed on an outer peripheral surface thereof; and
a plurality of coils stacked and wound on the uneven outer peripheral surface of the body part.

### Claim 10 (depends on 1)

A display device, comprising:
a power supply having at least one coil component of claim 1 mounted on a substrate; and
a display panel receiving power from the switching mode power supply.