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:
Mar. 08, 2005
Filed:
Jul. 31, 2002
DO Hyun Kang, Changwon-si, KR;
Yeon Ho Jeong, Changwon-si, KR;
Do Hyun Kang, Changwon-si, KR;
Yeon Ho Jeong, Changwon-si, KR;
Korea Electrotechnology Research Institute, Kyungsangnam-do, KR;
Abstract
Disclosed is a brushless generator with permanent magnets, which provides high-speed operation, simple maintenance, lightweight, and stable power. The brushless generator with permanent magnets including a main generator with a stator and a rotor; and an auxiliary generator having a stator made of a hollow stator core and a coil wound around the stator core, and a rotor made of a rotor core rotating within the stator core and a coil wound around the rotor core, where wedges and grooves are formed alternatively on the inner portion of the stator core of the auxiliary generator, and permanent magnets are embedded in the body of the grooves and the coil is wound around the body of the grooves. Accordingly, without the use of a brush, a rated load voltage is generated from the permanent magnets of the auxiliary generator, and voltage variations due to load variations are controlled by the windings of the auxiliary generator. Therefore, along with reduction in capacity of controller, high-speed operation and highly efficient operation become possible, small size and lightweight can be obtained, and maintenance can be simpler.