Patent ID: 8581465
Filing Date: 2013-11-12
Classification: H02K

Abstract:
1. A generator comprising: a stator plate having a first fixed permanent magnet consisting of a plural number of magnets arranged so that mutually adjacent magnets have opposite polarities on one side thereof and a second fixed permanent magnet consisting of the same number of magnets as the plural number arranged similarly on the other side, the respective plural number of magnets of the first and second fixed permanent magnet being arranged in such a manner that magnetic poles facing each other thereof are opposite; a first armature provided on the side of the first fixed permanent magnet, comprising a first switching winding wholly wound around a first ring core fixed thereto, a first output winding, and a first back-electromotive force prevention winding, the first output winding being wound on the first switching winding and including a winding part and a gap part divided into winding sections and gap sections respectively so that the total number of the winding and gap sections are the same as the plural number, each center of the winding and gap sections being aligned with each of contact parts at which the plural number of magnets of the first fixed permanent magnet are in contact with each other, the first back-electromotive force prevention winding being wound on the gap part of the first output winding; a second armature provided on the side of the second fixed permanent magnet, comprising a second switching winding wholly wound around a second ring core fixed thereto, a second output winding, and a second back-electromotive force prevention winding, the second output winding being wound on the second switching winding and including a winding part and a gap part divided into winding sections and gap sections respectively so that the total number of the winding and gap sections are the same as the plural number, the winding part and gap part of the second output winding being opposite to the gap part and winding part of the first output winding respectively, each center of the winding sections and gap sections being aligned with each of contact parts at which the plural number of magnets of the second fixed permanent magnet are in contact with each other, the second back-electromotive force prevention winding being wound on the gap part of the second output winding; a first rotor plate facing the first armature and having a first rotational permanent magnet consisting of the same number of magnets as the plural number arranged so that mutually adjacent magnets have opposite polarities; and a second rotor plate facing the second armature and having a second rotational permanent magnet consisting of the same number of magnets as the plural number, the magnets being arranged so that magnetic poles thereof facing those of the first rotational permanent magnet are the same, the first and second rotor plates being coupled to each other by a driving shaft; wherein the first and second switching windings comprise first and second power supplies and first and second switches respectively; wherein one end of the first back-electromotive force prevention winding is connected with one end of a capacitor, one end of the second back-electromotive force prevention winding is connected with the other end of the capacitor, the other end of the first back-electromotive force prevention winding and the other end of the second back-electromotive force prevention winding are connected with each other; and wherein electromotive force is extracted by operations of the first and second switches based on the timing when the electromotive force is generated on the first and second output windings by rotation of the first and second rotor plates.