The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2010
Filed:
Dec. 26, 2006
Kelong Zhao, Shenzhen, CN;
Xuezhong Wu, Shenzhen, CN;
Kelong Zhao, Shenzhen, CN;
Xuezhong Wu, Shenzhen, CN;
BYD Company Limited, Shenzhen, CN;
Abstract
The present invention involves a type of flat, motor-driven vibrator that does not increase the outer physical dimensions of the vibrator while increasing the amount of vibration by changing the mass and balance of the eccentric rotor. The base structure of the eccentric rotor is made of high-density alloy. Two or more coils are installed over the protuberances of the alloy oscillator and a circuit board is installed into the other end of the oscillator. A self-lubricating and wear-resistant, low-density plastic material is injected into the gap between the coils, the oscillator, and the circuit board to mold them together. A cylindrical bore in the middle of the molded plastic is used as a rotor bearing.