# US 2014/0152411 A1 · Inductor and manufacturing method thereof

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- Number: US 2014/0152411 A1
- Document ID: US20140152411A1
- Status: Published application
- Kind: A1
- Application number: 14/095,336
- Filed: 2013-12-03
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Samsung Electro-Mechanics Co., Ltd.
- Applicants: Samsung Electro-Mechanics Co., Ltd.
- Inventors: Jae Kwang Kim; Sang Ho Shin; Byung Kug Cho; Hoon Suk Hur
- Web page: https://patentgrep.com/patent/US20140152411A1

## CPC

- H01F 27/06: Mounting, supporting, or suspending transformers, reactors, or choke coils {not being of the signal type}
- H01F 41/06: Coil winding
- H01F 27/065: {Mounting on printed circuit boards}
- Y10T 29/49071: by winding or coiling
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Disclosed herein are an inductor and a manufacturing method thereof. The manufacturing method of an inductor includes: positioning a printed circuit board (PCB) including a predetermined pattern formed thereon and an insertion part formed at one side thereof; fixing a protrusion part formed at a lower portion of a core so as to be inserted into the insertion part; electrically connecting both ends of a coil wound around the core to a lower PCB terminal disposed at a lower portion of the PCB, respectively; and forming an appearance so that the core, the coil, and an upper exposed surface of the PCB are received therein.

## Claims

### Claim 1

An inductor comprising:
a PCB including an insertion part formed therein;
a coil assembly including a core and a coil wound around the core and positioned on the PCB so that a protrusion part formed at a lower portion of the core is inserted and fixed into the insertion part;
a lower PCB terminal disposed at a lower portion of the PCB and penetrating through the PCB to thereby be electrically connected to the coil; and
a filler forming an appearance so that the core, the coil, and an upper exposed surface of the PCB are received therein.

### Claim 2 (depends on 1)

The inductor according to claim 1, wherein a content of a resin configuring the core is less than 1 wt %, and a content of a resin configuring the filler is an arbitrary value of 4 to 10 wt %.

### Claim 3 (depends on 1)

The inductor according to claim 1, wherein at least one groove for fixing the other end of the coil at the time of winding the coil on a circumferential surface of the core using one end of the coil is formed at one side of the core.

### Claim 4 (depends on 1)

The inductor according to claim 1, wherein the coil and the lower PCB terminal are electrically connected by at least one method among a laser welding method, a spot welding method, an ultrasonic welding method, and a conductive adhesive bonding method.

### Claim 5

A manufacturing method of an inductor, the method comprising:
positioning a printed circuit board (PCB) including a predetermined pattern formed thereon and an insertion part formed at one side thereof;
fixing a protrusion part formed at a lower portion of a core so as to be inserted into the insertion part;
electrically connecting both ends of a coil wound around the core to a lower PCB terminal disposed at a lower portion of the PCB, respectively; and
forming an appearance so that the core, the coil, and an upper exposed surface of the PCB are received therein.

### Claim 6 (depends on 5)

The manufacturing method according to claim 5, wherein the fixing of the protrusion part is fixing a coil assembly in which the coil is wound on a circumferential surface of the core so as to be inserted into the insertion part.

### Claim 7 (depends on 5)

The manufacturing method according to claim 5, wherein the fixing of the protrusion part includes:
fixing the protrusion part formed at the lower portion of the core so as to be inserted into the insertion part; and
winding the coil on a circumferential surface of the fixed core.

### Claim 8 (depends on 2)

The inductor according to claim 2, wherein at least one groove for fixing the other end of the coil at the time of winding the coil on a circumferential surface of the core using one end of the coil is formed at one side of the core.