Horizontal linear vibrator

• US 8,288,899 B2
• Filed: 11/24/2010
• Issued: 10/16/2012
• Est. Priority Date: 06/29/2010
• Status: Active Grant

• Current Assignee: Partron Company Limited
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: Park, Seok Jun, Choi, Jun Kun, Oh, Hwa Young, Lee, Jee Sung, Kim, Yong Jin, Lee, Kyung Ho
• Primary Examiner(s): Lam, Thanh
• Application Number:
  US12/926,568
• Publication Number:
  US 20110316361A1
• Time in Patent Office: 692 Days
• Field of Search: 310/15, 310/17, 310/20, 310/21, 310/25, 310/36, 310/12.21, 310/71, 310/81
• 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

There is provided a horizontal linear vibrator including a bracket providing an internal space; a vibration unit mounted in the internal space and including a mass body moving horizontally and linearly; and a magnetic field unit including a magnet fixed to the mass body and a coil installed within a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move horizontally and linearly, wherein the coil includes a coil line disposed between the bracket and a printed circuit board and extending outside of the internal space of the bracket such that the coil line is connected with the printed circuit board for applying power from an external source to the coil outside of the internal space of the bracket.

Claims

1. A horizontal linear vibrator comprising:

a bracket providing an internal space;

a vibration unit mounted in the internal space and including a mass body moving horizontally and linearly; and

a magnetic field unit including a magnet fixed to the mass body and a coil installed within a magnetic field of the magnet and generating electromagnetic force to allow the vibration unit to move horizontally and linearly,

wherein the coil includes a coil line disposed between the bracket and a printed circuit board and extending outside of the internal space of the bracket such that the coil line is connected with the printed circuit board for applying power from an external source to the coil outside of the internal space of the bracket.

2. The horizontal linear vibrator of claim 1, wherein the coil line is disposed between an upper surface of the bracket and a lower surface of the printed circuit board, and

the printed circuit board includes a recess allowing the coil line extending to an upper portion of the printed circuit board to be fixed thereto.

3. The horizontal linear vibrator of claim 1, wherein the printed circuit board includes a cut-out portion allowing the coil line extending to an upper portion of the printed circuit board to be inserted thereinto.

4. The horizontal linear vibrator of claim 1, wherein the printed circuit board comprises a plurality of printed circuit boards, and

the coil line is inserted between the printed circuit boards to extend to upper portions of the printed circuit boards.

5. The horizontal linear vibrator of claim 1, wherein the printed circuit board comprises an extension part extending outside of the internal space of the bracket, and

the coil line is subjected to soldering on the extension part.

6. The horizontal linear vibrator of claim 1, wherein the magnet has a rectangular shape in order to increase electromagnetic force.

7. The horizontal linear vibrator of claim 6, wherein the coil has a shape corresponding to that of the magnet.

8. The horizontal linear vibrator of claim 1, wherein the bracket has at least one or more protrusions on an inner surface thereof, and

the printed circuit board is fixed by the at least one or more protrusions.

9. The horizontal linear vibrator of claim 1, further comprising a cover unit covering an upper portion of the bracket.

10. The horizontal linear vibrator of claim 1, further comprising a damper disposed between the bracket and the coil and absorbing vibrations of the vibration unit.