Electric generator utilizing minimal mechanical power

• US 5,420,471 A
• Filed: 10/13/1993
• Issued: 05/30/1995
• Est. Priority Date: 10/14/1992
• Status: Expired due to Term

• Current Assignee: Ja D. Yun
• Original Assignee: Ja D. Yun
• Inventors: Yun, Ja D.
• Primary Examiner(s): Stephan, Steven L.
• Assistant Examiner(s): LaBalle, Clayton E.
• Application Number:
  US08/135,355
• Time in Patent Office: 594 Days
• Field of Search: 310/216, 310/254, 310/192, 310/191
• US Class Current: 310/216.017
• CPC Class Codes: H02K 1/06 characterised by the shape, form or construction
• CPC Class Codes: H02K 19/16 Synchronous generators

Abstract

An electric generator which can be powered using a minimal amount of mechanical power, and in particular, an electric generator having a weak electromagnet which acts as a stator core, thus enabling electric power generation to occur while only minimal amounts of mechanical power are utilized. The generator comprises two annular ferromagnetic silicon steel plates inserted between non-magnetic plates to thus define a stator core with a stacked silicon steel plate and non-magnetic plate arrangement. The internal diameter of the ferromagnetic silicon steel plates is preferably at least 5 millimeters larger than that of the non-magnetic plates. Consequently, a strong magnetic field cannot be formed around the stator core, and as a result, the generator'"'"'s rotor can be rotated using minimal amounts of mechanical power.

Claims

1. A stator core for minimizing the amount of mechanical power required to drive an electric generator;

said stator core comprising;

at least two substantially annular non-magnetic plates; and

two substantially annular silicon steel plates disposed coaxially between each of said at least two non-magnetic plates, wherein said two substantially annular silicon steel plates have an internal diameter which is at least five millimeters larger than that of said at least two substantially annular non-magnetic plates.

2. The stator core of claim 1, wherein said at least two substantially annular non-magnetic plates are comprised of aluminum.

3. A generator which can be driven using a minimal amount of mechanical power, said generator comprising:

a rotatably mounted rotor having at least one rotor coil mounted thereto; and

a substantially annular stator core comprising at least two substantially annular non-magnetic plates and two substantially annular silicon steel plates disposed coaxially between each of said at least two non-magnetic plates, wherein said two substantially annular silicon steel plates have an internal diameter which is at least five millimeters larger than that of said at least two substantially annular non-magnetic plates.

4. The generator of claim 3, wherein said at least two substantially annular non-magnetic plates are comprised of aluminum.

5. The generator of claim 3, further comprising a generally cylindrical housing disposed around said substantially annular stator core.