Horizontal linear vibrator

• US 20110068641A1
• Filed: 08/30/2010
• Published: 03/24/2011
• Est. Priority Date: 09/24/2009
• Status: Abandoned Application

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung SDI Company Limited
• Inventors: Choi, Jun Kun, Kim, Yong Jin, Oh, Hwa Young
• Application Number:
  US12/923,039
• Publication Number:
  US 20110068641A1
• Time in Patent Office: Days
• US Class Current: 310/25
• CPC Class Codes: H02K 33/16 with polarised armatures moving in alternate directions by reversal or energisation of a single coil system

Abstract

A horizontal linear vibrator includes: a bracket having a coil part with a hollow; a vibration unit including a yoke part having an accommodation space for accommodating the coil part therein and a passage hole formed to pass through the accommodation space; and a magnetic field unit including a magnet disposed in the accommodation space through the passage hole and providing an electromagnetic force to allow the vibration unit to horizontally move by an interaction of the coil part and the magnet.

Claims

1. A horizontal linear vibrator comprising:

a bracket having a coil part with a hollow;

a vibration unit including a yoke part having an accommodation space for accommodating the coil part therein and a passage hole formed to pass through the accommodation space; and

a magnetic field unit including a magnet disposed in the accommodation space through the passage hole and providing an electromagnetic force to allow the vibration unit to horizontally move by an interaction of the coil part and the magnet.

2. The vibrator of claim 1, wherein the passage hole has a circular shape, and the magnet has a cylindrical shape corresponding to the passage hole.

3. The vibrator of claim 1, wherein an insertion hole is formed on an outer surface of the bracket such that it is positioned in a straight line with the passage hole.

4. The vibrator of claim 1, wherein the magnets are formed at both sides of a magnetic core such that their polarities face each other.

5. The vibrator of claim 1, wherein the vibration unit comprises the yoke part accommodating the magnetic field unit therein, and the yoke part comprises an extending part extending to be bent so as to be tightly attached to outer surfaces of a mass body.

6. The vibrator of claim 1, wherein a bobbin is formed at an upper portion of the bracket such that the coil part is inserted therein.

7. The vibrator of claim 1, wherein the coil part has a quadrangular shape.

8. The vibrator of claim 1, wherein a circuit board is installed on the upper portion of the bracket and connected with an external input terminal.