Flat vibration motor
US8378539B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Feb 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K7/063
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat vibration motor for suppressing deformation of coils even in a reflow at a high temperature, having a stator structure 10 fixing a shaft 1 and having no-core coils C1 and C2; a cover case 20 covered by the stator structure 10 and supporting the other end of the shaft 1; and a rotor frame 30; wherein the stator structure 10 includes: a board 12 having a first face 12a being provided with electrode patterns E1-E3 and a second face 12b being provided with a wiring pattern to be connected to the electrode patterns and to the no-core coils; and a base frame 14 having a burring part 15a into which one end of the shaft 1 is fitted, and being sandwiched between the rotor frame 30 and the upper surfaces of the coils C1 and C2 by abutting against the coils C1 and C2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.