Rotating machine and rotor thereof

Patent metadata

Field	Value
Publication number	US-9013082-B2
Application number	US-201113237701-A
Country	US
Kind code	B2
Filing date	Sep 20, 2011
Priority date	Dec 3, 2010
Publication date	Apr 21, 2015
Grant date	Apr 21, 2015

Abstract

A rotating machine is provided, including a rotor and a stator set. The rotor rotates around an axis, wherein the rotor includes a first permanent magnet set and a second permanent magnet set, the first permanent magnet set is magnetized in a circumference direction of the axis, and the second permanent magnet set is magnetized in an axial direction of the axis. The stator set corresponds to the rotor, wherein the stator set includes a radial stator member and an axial stator member, the axial stator member corresponds to the rotor in the axial direction of the axis, and the radial stator member corresponds to the rotor in a radial direction of the axis.

First claim

What is claimed is:

1. A rotating machine, comprising:
a rotor, rotating around an axis, wherein the rotor comprises a first permanent magnet set and a second permanent magnet set, and the first permanent magnet set is magnetized in a circumference direction of the axis, and the second permanent magnet set is magnetized in an axial direction of the axis, wherein the first permanent magnet set comprises a plurality of circumferentially magnetized permanent magnets, the second permanent magnet set comprises a plurality of axially magnetized permanent magnets, and each axially magnetized permanent magnet is located between two adjacent circumferentially magnetized permanent magnets in a circumferential direction; and
a stator set, corresponding to the rotor, wherein the stator set comprises a radial stator member and an axial stator member, the axial stator member corresponds to the rotor in the axial direction of the axis, and the radial stator member corresponds to the rotor in a radial direction of the axis,
wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are arranged staggeredly on a periphery of the rotor, and the axially magnetized permanent magnets are arranged in pairs axially, wherein each two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof, and a pair of the axially facing axially magnetized permanent magnets between the two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof.

2. The rotating machine as claimed in claim 1 , wherein, the radial stator member corresponds to the rotor, a radial air gap is formed between the radial stator member and the rotor, the axial stator member corresponds to the rotor, and an axial air gap is formed between the axial stator member and the rotor.

3. The rotating machine as claimed in claim 1 , wherein the radial stator member corresponds to a radial outer periphery or a radial inner periphery of the rotor.

4. A rotor, utilized for a rotating machine and rotated along an axis, comprising:
a rotor core;
a first permanent magnet set, magnetized in a circumference direction of the rotating machine against the axis; and
a second permanent magnet set, magnetized in an axial direction of the rotating machine against the axis, wherein the first permanent magnet set is embedded in the rotor core, and the second permanent magnet set is axially disposed on the rotor core, wherein the first permanent magnet set comprises a plurality of circumferentially magnetized permanent magnets, and the second permanent magnet set comprises a plurality of axially magnetized permanent magnets, and each axially magnetized permanent magnet is located between two adjacent circumferentially magnetized permanent magnets in a circumferential direction,
wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are arranged staggeredly on a periphery of the rotor, and the axially magnetized permanent magnets are arranged in pairs axially, wherein each two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof, and a pair of the axially facing axially magnetized permanent magnets between the two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof.

5. The rotor as claimed in claim 4 , wherein the rotor core comprises a first side surface and a second side surface, and the axially magnetized permanent magnets are attached on the first side surface and the second side surface.

6. The rotor as claimed in claim 4 , wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are uniformly arranged on the periphery of the rotor.

7. A rotor, utilized for a rotating machine and rotated along an axis, comprising:
a rotor core;
a first permanent magnet set, comprising a plurality of circumferentially magnetized permanent magnets which are arranged around the axis ; and
a second permanent magnet set, comprising a plurality of axially magnetized permanent magnets which are arranged around the axis, wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are arranged staggeredly on a periphery of the rotor, and the axially magnetized permanent magnets are arranged in pairs axially, wherein each two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof, and a pair of the axially facing axially magnetized permanent magnets between the two circumferentially magnetized permanent magnets which are circumferentially adjacent have the same first pole arrangement at corresponding portions thereof, wherein each axially magnetized permanent magnet is located between two adjacent circumferentially magnetized permanent magnets in a circumferential direction.

8. The rotor as claimed in claim 7 , wherein the rotor core comprises a first side surface and a second side surface, and the axially magnetized permanent magnets are attached on the first side surface and the second side surface.

9. The rotor as claimed in claim 7 , wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are uniformly arranged on the periphery of the rotor.

10. A rotating machine, comprising:
a rotor and a stator set;
an axial air gap, located between the rotor and an axial stator member of the stator set;
a radial air gap, located between the rotor and a radial stator member of the stator set;
a first magnetic flow path, extending through the rotor, the radial air gap, and the radial stator member; and
a second magnetic flow path, extending through the rotor, the radial air gap, the radial stator member, the axial air gap and the axial stator member,
wherein the rotor comprises a first permanent magnet set and a second permanent magnet set, the first permanent magnet set comprises a plurality of circumferentially magnetized permanent magnets, and the second permanent magnet set comprises a plurality of axially magnetized permanent magnets, wherein each axially magnetized permanent magnet is located between two adjacent circumferentially magnetized permanent magnets in a circumferential direction,
wherein the circumferentially magnetized permanent magnets and the axially magnetized permanent magnets are arranged staggeredly on a periphery of the rotor, and the axially magnetized permanent magnets are arranged in pairs axially, wherein each two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof, and a pair of the axially facing axially magnetized permanent magnets between the two circumferentially magnetized permanent magnets which are circumferentially adjacent have a same first pole arrangement at corresponding portions thereof.

11. The rotating machine as claimed in claim 10 , wherein the radial stator member comprises a radial stator core, and the rotor comprises a rotor core, wherein the first magnetic flow path travels from an N pole of the circumferentially magnetized permanent magnet, to pass through the rotor core, and the radial air gap to the radial stator core, and then travels from the radial stator core, to pass through the radial air gap and the rotor core to an S pole of the circumferentially m

Assignees

• Ge Xiao
• Ying Jian-Ping
• Sheu Hong-Cheng
• Zhu Hongliu
• Delta Electronics Inc

Inventors

• Ge Xiao
• Ying Jian-Ping
• Sheu Hong-Cheng
• Zhu Hongliu

Classifications

• H02K16/04

  Machines with one rotor and two stators · CPC title

• H02K1/27

  Rotor cores with permanent magnets · CPC title

• H02K1/2773

  consisting of tangentially magnetized radial magnets · CPC title

• H02K1/2793

  Rotors axially facing stators · CPC title

• H02K21/24

  with magnets axially facing the armatures, e.g. hub-type cycle dynamos · CPC title