Transverse flux machines

Patent metadata

Field	Value
Publication number	US-11316390-B2
Application number	US-202016781084-A
Country	US
Kind code	B2
Filing date	Feb 4, 2020
Priority date	Sep 6, 2019
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A transverse flux machine includes a stator assembly consisting of a plurality of shaped cores, each having a base with a plurality of legs with a corresponding gap between each leg and each leg having a winding. A rotor assembly is positioned adjacent the stator assembly and includes a rotor disc, and a rotor ring with a plurality of rotor poles interleaved with a plurality of interpoles. The plurality of rotor poles and plurality of interpoles are radially disposed around the rotor disc. The plurality of rotor poles include a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles.

First claim

What is claimed is:

1. A transverse flux machine, comprising:
a stator assembly comprising:
a plurality of shaped cores, each said shaped core having a base with a plurality of legs with a corresponding gap between each said leg, each said leg having a winding, where said plurality of shaped cores are E-shaped;
a rotor assembly positioned adjacent said stator assembly, said rotor assembly comprising:
a rotor disc, and
a rotor ring comprising a plurality of rotor poles interleaved with a plurality of interpoles, wherein said plurality of rotor poles and said plurality of interpoles are radially disposed around said rotor disc, and

wherein said plurality of rotor poles comprise a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles, wherein each said plurality of focused rotor poles has either
at least one enlarged core component with respect to other core components, or
at least two enlarged magnetic components with respect to other magnetic components;

and each said plurality of diffused rotor poles has either
at least two enlarged core components with respect to other core components, or
at least one enlarged magnetic component with respect to other magnetic components.

2. The machine according to claim 1 , where each said interpole comprises either all core components or all magnetic components, where said core components or said magnetic components are insulated from one another by polymeric material.

3. A transverse flux machine, comprising:
a stator assembly comprising:
a plurality of shaped cores, each said shaped core having a base with a plurality of legs with a corresponding gap between each said leg, each said leg having a winding;
a rotor assembly positioned adjacent said stator assembly, said rotor assembly comprising:
a rotor disc, and
a rotor ring comprising a plurality of rotor poles interleaved with a plurality of interpoles, wherein said plurality of rotor poles and said plurality of interpoles are radially disposed around said rotor disc, and

wherein said plurality of rotor poles comprise a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles, wherein each said plurality of focused rotor poles has either
at least one enlarged core component with respect to other core components, or
at least two enlarged magnetic components with respect to other magnetic components;

and each said plurality of diffused rotor poles has either
at least two enlarged core components with respect to other core components, or
at least one enlarged magnetic component with respect to other magnetic components,

where each said interpole comprises either all core components or all magnetic components, where said core components or said magnetic components are insulated from one another by polymeric material, and
wherein each said rotor pole comprises a radially outward flux focusing magnet and a radially inward flux focusing magnet.

4. The machine according to claim 3 , wherein each said rotor pole comprises:
an inner core positioned adjacent said rotor disc;
a middle core separated from said inner core by one of said radially outward flux focusing magnet and said radially inward flux focusing magnet; and
an outer core separated from said middle core by the other of said radially outward flux focusing magnet and said radially inward flux focusing magnet.

5. The machine according to claim 4 , wherein each of said plurality of focused rotor poles comprises:
said inner core;
said radially outward flux focusing magnet positioned radially adjacent said inner core;
said middle core positioned radially adjacent said radially outward flux focusing magnet on a side opposite said inner core, wherein said middle core is said at least one enlarged core component;
said radially inward flux focusing magnet positioned radially adjacent said middle core on a side opposite said radially outward flux focusing magnet; and
said outer core positioned radially adjacent said radially inward flux focusing magnet.

6. The machine according to claim 5 , wherein one said interpole adjacent said focused rotor pole comprises at least one clockwise leakage magnet which focuses flux onto one lateral side of said middle core and wherein the other said interpole adjacent said focused rotor pole comprises at least one counterclockwise magnet which focuses flux into an opposite lateral side of said middle core.

7. The machine according to claim 5 , wherein one said interpole adjacent said diffused rotor pole comprises at least one clockwise leakage magnet which diffuses flux away from one lateral side of said inner and outer cores, and wherein the other said interpole adjacent said diffused rotor pole comprises at least one counterclockwise magnet which diffuses flux away from an opposite lateral side of said inner and outer cores.

8. The machine according to claim 4 , wherein each said plurality of diffused rotor poles comprises:
said inner core, wherein said inner core is one of said at least one enlarged core components;
said radially inward flux focusing magnet positioned radially adjacent said inner core;
said middle core positioned radially adjacent said radially inward flux focusing magnet on a side opposite said inner core;
said radially outward flux focusing magnet positioned radially adjacent said middle core on a side opposite said radially inward flux focusing magnet; and
said outer core positioned radially adjacent said radially outward flux focusing magnet on a side opposite said middle core, wherein said outer core is another of said at least one enlarged core components.

9. The machine according to claim 8 , wherein one said interpole adjacent said diffused rotor pole comprises:
at least one clockwise leakage magnet which diffuses flux away from one lateral side of said middle core;
and wherein the other said interpole adjacent said diffused rotor pole comprises at least one counterclockwise magnet which diffuses flux away from an opposite lateral side of said middle core.

10. The machine according to claim 8 , wherein one said interpole adjacent said diffused rotor pole comprises at least one clockwise leakage magnet, wherein said at least one clockwise leakage magnet focuses flux into one lateral side of said inner and outer cores, and
wherein the other said interpole adjacent said diffused rotor pole comprises at last one counterclockwise magnet, wherein said at least one counterclockwise magnet focuses flux into an opposite lateral side of said inner and outer cores.

11. A transverse flux machine, comprising:
a stator assembly comprising:
a plurality of shaped cores, each said shaped core having a base with a plurality of legs with a corresponding gap between each said leg, each said leg having a winding;
a rotor assembly positioned adjacent said stator assembly, said rotor assembly comprising:
a rotor disc, and
a rotor ring comprising a plurality of rotor poles interleaved with a plurality of interpoles, wherein said plurality of rotor poles and said plurality of interpoles are radially disposed around said rotor disc, and

wherein said plurality of rotor poles comprise a plurality of focused rotor poles interleaved with a plurality of diffused rotor poles, wherein each said plurality of focused rotor poles has either
at least one enlarged core component with respect to other core components, or
at least two enlarged magnetic components with respect to other magnetic components;

and each said plurality of diffused rotor poles has either
at least two enlarged core components with respect to other core components, or
at least one enlarged magnetic component with respect to other

Assignees

• Sozer Yilmaz
• Chowdhury Anik
• Das Shuvajit
• Saito Naoto
• Saha Subrata
• Takeuchi Takamasa
• SHIOTSUKI Yasunobu
• Tsuda Teppei
• Univ Akron

Inventors

• Sozer Yilmaz
• Chowdhury Anik
• Das Shuvajit
• Saito Naoto
• Saha Subrata
• Takeuchi Takamasa
• SHIOTSUKI Yasunobu
• Tsuda Teppei

Classifications

• H02K21/16 Primary

  having annular armature cores with salient poles (with homopolar co-operation H02K21/20) · CPC title

• H02K1/274 Primary

  the rotor consisting of two or more circumferentially positioned magnets · CPC title

• H02K1/2793

  Rotors axially facing stators · CPC title

• H02K1/2796

  where both axial sides of the rotor face a stator · CPC title