Invention Grant
- Patent Title: Linear vibrator
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Application No.: US15478653Application Date: 2017-04-04
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Publication No.: US10298105B2Publication Date: 2019-05-21
- Inventor: Jong Dae Kim , Keun Yong Hwang
- Applicant: EM-TECH. Co., Ltd.
- Applicant Address: KR Busan
- Assignee: EM-TECH, Co., Ltd.
- Current Assignee: EM-TECH, Co., Ltd.
- Current Assignee Address: KR Busan
- Agency: Murphy, Bilak & Homiller, PLLC
- Priority: KR10-2016-0041514 20160405
- Main IPC: H02K33/00
- IPC: H02K33/00 ; H02K33/16

Abstract:
A linear vibrator includes a bracket having a plate shape, a casing having a hexahedral shape with an open bottom and coupled to the bracket, a circuit board on the bracket, a coil on the circuit board, a pair of magnets spaced apart from each other and disposed over the coil at an interval from the coil, a plate having a pair of magnet attachment surfaces attached to top surfaces of the pair of magnets and a connection surface downwardly bent with a step difference from the magnet attachment surfaces and connecting the pair of magnet attachment surfaces, a weight on top of the plate, and a spring on top of the connection surface and formed in a strip shape with two ends secured to the casing and a center portion secured to the connection surface. The spring is bilateral symmetric and has at least a pair of inwardly-bent portions.
Public/Granted literature
- US20170288519A1 Linear Vibrator Public/Granted day:2017-10-05
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