Rotary electric machine

• US 6,617,739 B1
• Filed: 05/05/2000
• Issued: 09/09/2003
• Est. Priority Date: 05/06/1999
• Status: Expired due to Fees

• Current Assignee: Yukio Kinoshita
• Original Assignee: Yukio Kinoshita
• Inventors: Kinoshita, Yukio
• Primary Examiner(s): LE, DANG D
• Application Number:
  US09/564,807
• Time in Patent Office: 1,222 Days
• Field of Search: 310/254, 310/257, 310/216, 310/217, 310/218, 310/49.R, 310/49.A, 310/263, 310/51, 310/189, 310/191, 310/200, 310/209, 310/184, 310/148
• US Class Current: 310/198
• CPC Class Codes: H02K 1/2766 having a flux concentration effect
• CPC Class Codes: H02K 21/145 having an annular armature coil with homopolar co-operation H02K21/20
• CPC Class Codes: H02K 21/227 having an annular armature coil
• CPC Class Codes: H02K 21/46 Motors having additional short-circuited winding for starting as an asynchronous motor
• CPC Class Codes: H02K 2201/06 Magnetic cores, or permanent magnets characterised by their skew
• CPC Class Codes: H02K 2201/12 Transversal flux machines

Abstract

A magnetic pole for facing an air gap with a stator is formed with a parallel quadrilateral shape or a quadrilateral shape having a skew effect and is obtained by a single iron core or plural iron cores. To make simply a winding structure of a stator and a rotor of an alternating current rotary electric machine, by a bobbin structure a magnetic field formation of a magnetic pole portion is formed. A magnetic pole structure having a projection portion is provided to form an overlap structure with another phase magnetic pole. An electromagnetic combination of each phase is strengthened and each phase magnetic poles is carried out a systematic separation, dispersion, and an arrangement.

Claims

1. A multi-phase rotary electric machine of an alternating current electromagnet in which a stator or rotor is formed by combining a bobbin winding and a magnetic pole iron core, wherein

a magnetic pole shape facing an air gap portion formed between said stator and said rotor has a projection portion which is overlapped with another phase, and

an electromagnetic agreement with each phase is disposed in a spaced arrangement of a magnetic pole in said air gap and said magnetic pole of each phase is strengthened with a contact and a laminated layer formed by divided cores,

whereby a rotation magnetic field is formed smoothly and a performance and a vibration are improved.

2. A multi-phase rotary electric machine as claimed in claim 1, wherein the magnetic pole shape is a parallel quadrilateral shape such that a skew effect is obtained by a single magnetic iron core or plural iron cores.

3. A multi-phase rotary electric machine as claimed in claim 1, wherein the magnetic pole is formed by a ferrite sintering material to reduce an eddy current flow loss due to the rotation magnetic field.

4. In a rotary electric machine in which a multi-phase stator or a multi-phase rotor is formed by plural alternating current electromagnets which are formed by a bobbin winding and a magnetic pole iron core, wherein,

in a bobbin winding for a respective phase, a bobbin winding of said respective phase is electromagnetically connected to a bobbin winding of another phase, and the bobbin winding of said respective phase and the bobbin winding of said another phase are both located in the same bobbin;

when the multi-phase stator is a two-phase stator, one adjacent coil is inserted into a main coil in the bobbin winding; and

when the multi-phase stator is at least a three-phase stator, two adjacent coils are inserted into a main coil in the bobbin winding;

whereby an electromagnetic combination to the another phase is strengthened and a rotation magnetic field is formed efficiently, and a performance and a vibration are improved.

5. A rotary electric machine in which a stator or rotor is formed by combining a bobbin winding and a magnetic pole iron core, wherein

a magnetic pole shape facing an air gap portion formed between said stator and said rotor has a projection portion which is overlapped with another phase, and

an electromagnetic agreement with each phase is disposed in a spaced arrangement of a magnetic pole in said air gap and said magnetic pole of each phase is strengthened with a contact and a laminated layer formed by divided cores, and

wherein in a bobbin winding for a respective phase, a bobbin winding of said respective phase is electromagnetically connected to a bobbin winding of another phase, and both the bobbin winding of said respective phase and the bobbin winding of said another phase are located in the same bobbin,

whereby performance, efficiency and vibration are improved.

6. A rotary electric machine as claimed in claim 5, wherein the magnetic pole shape is a parallel quadrilateral shape such that a skew effect is obtained by a single magnetic iron core or plural iron cores.

7. A rotary electric machine as claimed in claim 5, wherein the magnetic pole is formed by a ferrite sintering material to reduce an eddy current flow loss due to a rotation magnetic field.