IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0219427
(2008-07-22)
|
등록번호 |
US-8398378
(2013-03-19)
|
발명자
/ 주소 |
- Simofi-Ilyes, Attila
- Lakerdas, Andrew
- McLennan, Paul Stephen
|
출원인 / 주소 |
- Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
▼
A fan module assembly includes at least one a rotatable fan (38) having blades (39) with tips of blades being joined by an annular fan band (42). An electrically conductive squirrel cage (46) is associated with the fan band to rotate therewith. Flux receiving structure (48) is associated with the fa
A fan module assembly includes at least one a rotatable fan (38) having blades (39) with tips of blades being joined by an annular fan band (42). An electrically conductive squirrel cage (46) is associated with the fan band to rotate therewith. Flux receiving structure (48) is associated with the fan band. A shroud (40) has a shaft (54) with the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud. Control structure (52) is mounted stationary with respect to the shroud generally adjacent to a portion of the fan band. The control structure is constructed and arranged to generate a changing magnetic field, generally at the radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to cause the fan to be driven by tangential force.
대표청구항
▼
1. A fan module assembly comprising: at least one rotatable fan having blades, tips of blades being joined by an annular fan band, an electrically conductive squirrel cage being associated with the fan band to rotate therewith,flux receiving structure associated with the fan band, the flux receiving
1. A fan module assembly comprising: at least one rotatable fan having blades, tips of blades being joined by an annular fan band, an electrically conductive squirrel cage being associated with the fan band to rotate therewith,flux receiving structure associated with the fan band, the flux receiving structure being made of soft magnetic material that can be magnetized but does not remain magnetized,a shroud having a shaft, the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud, andonly one localized, single control structure mounted stationary with respect to the shroud generally adjacent to one portion of the fan band, the single control structure being constructed and arranged to generate a localized and balanced changing magnetic field, generally at a radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to alone cause the fan to be driven by tangential force without the use of permanent magnets. 2. The fan module of claim 1, wherein the flux receiving structure is an annular flux ring coupled with the fan band. 3. The fan module of claim 1, wherein the flux receiving structure is an arc-shaped section mounted stationary on the shroud, the fan band being disposed between the arc-shaped section and the control structure. 4. The fan module of claim 1, wherein the squirrel cage is embedded in the fan band. 5. The fan module of claim 1, wherein the control structure includes a stator core, stator windings associated with the stator core and electronic structure constructed and arranged to convey power to the stator windings. 6. The fan module of claim 5, wherein the stator core has a portion with a curved profile that is concentric with respect to the fan band. 7. The fan module of claim 6, wherein the control structure further includes a housing, the stator core, the stator windings, and the electronic structure being disposed in the housing, the housing having a curved profile receiving the curved profile portion of the stator core. 8. The fan module of claim 6, wherein the portion with a curved profile are stator teeth upon which the stator windings are wound. 9. The fan module of claim 7, further including a stator core insulator constructed and arranged to electrically insulate the stator windings from the stator core. 10. The fan module of claim 5, wherein the flux receiving structure is integral with the stator core and includes a first end and an opposing second end, the first end and the second end form a gap for receiving a portion of the fan band there-between, the second end is radially closer to an axis of rotation of the fan than the first end and the fan band includes an internal surface and an external surface, wherein the internal surface is radially closer to the axis of rotation of the fan than the external surface, the ends being curved so as to receive the portion of the fan band there-between such that the first end is adjacent to the internal surface and the second end is adjacent to the external surface. 11. The fan module of claim 1, wherein a first fan and a second fan are provided, the first fan is rotatable about a first shaft of the shroud and the second fan is rotatable about a second shaft of the shroud, the first shaft and the second shaft are spaced from each other but parallel to each other, a flux receiving structure being associated with each fan band, and wherein the control structure includes a dual pole core disposed between the fans and associated with the flux receiving structures to drive the first fan and the second fan simultaneously. 12. A fan module assembly comprising: at least one rotatable fan having blades, tips of blades being joined by an annular fan band, an electrically conductive squirrel cage being associated with the fan band to rotate therewith,flux receiving structure associated with the fan band, the flux receiving structure being made of soft magnetic material that can be magnetized but does not remain magnetized,a shroud having a shaft, the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud, andonly one localized, single stator assembly mounted stationary with respect to the shroud generally adjacent to one portion of the fan band, the single stator assembly including a stator core and stator windings associated with the stator core, the single stator assembly being constructed and arranged to generate a localized and balanced changing magnetic field, generally at a radius of the fan band, that interacts with the flux receiving structure and the squirrel cage to alone cause the fan to be driven by tangential force without the use of permanent magnets. 13. The fan module of claim 12, wherein the flux receiving structure is one of an annular flux ring coupled with the fan band or an arc-shaped section mounted stationary on the shroud with the fan band being disposed between the arc-shaped section and the stator assembly. 14. The fan module of claim 12, further including electronic structure constructed and arranged to convey power to the stator windings. 15. The fan module of claim 12, wherein the stator core has a portion with a curved profile that is concentric with respect to the fan band. 16. The fan module of claim 12, wherein the flux receiving structure is integral with the stator core and includes a first end and an opposing second end, the first end and the second end form a gap for receiving a portion of the fan band there-between, the second end is radially closer to an axis of rotation of the fan than the first end and the fan band includes an internal surface and an external surface, wherein the internal surface is radially closer to the axis of rotation of the fan than the external surface, the ends being curved so as to receive the portion of the fan band there-between such that the first end is adjacent to the internal surface and the second end is adjacent to the external surface. 17. The fan module of claim 12, wherein a first fan and a second fan are provided, the first fan is rotatable about a first shaft of the shroud and the second fan is rotatable about a second shaft of the shroud, the first shaft and the second shaft are spaced from each other but parallel to each other, a flux receiving structure being associated with each fan band, and wherein the stator core is a dual pole core disposed between the fans and associated with the flux receiving structures to drive the first fan and second fan simultaneously. 18. A method of driving a fan of a fan module of a vehicle, the method comprising: providing at least one rotatable fan having blades with tips of blades being joined by an annular fan band, and an electrically conductive squirrel cage being associated with the fan band to rotate therewith,providing flux receiving structure associated with the fan band, the flux receiving structure being made of soft magnetic material that can be magnetized but does not remain magnetized,providing only one localized, single stator assembly mounted stationary with respect to a shroud and generally adjacent to one portion of the fan band, the single stator assembly including a stator core and stator windings associated with the stator core, andenergizing the stator windings thereby generating a localized and balanced changing magnetic field, generally at a radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to alone cause the fan to be driven by tangential force without the use of permanent magnets. 19. The method of claim 18, wherein the step of providing the flux receiving structure includes providing one of an annular flux ring coupled with the fan band or providing an arc-shaped section mounted stationary on the shroud with the fan band being disposed between the arc-shaped section and the stator assembly. 20. A fan module assembly comprising: at least one rotatable fan having blades, tips of blades being joined by an annular fan band, an electrically conductive squirrel cage being associated with the fan band to rotate therewith,flux receiving structure associated with the fan band,a shroud having a shaft, the fan being associated with the shaft so as to rotate about the shaft and with respect to the shroud, andonly one control structure mounted stationary with respect to the shroud generally adjacent to one portion of the fan band, the control structure being constructed and arranged to generate a changing magnetic field, generally at the radius of the fan band, which interacts with the flux receiving structure and the squirrel cage to cause the fan to be driven by tangential force,wherein the control structure includes a stator core, stator windings associated with the stator core and electronic structure constructed and arranged to convey power to the stator windings, andwherein the flux receiving structure is integral with the stator core and includes a first end and an opposing second end, the first end and the second end form a gap for receiving a portion of the fan band there-between, the second end is radially closer to an axis of rotation of the fan than the first end and the fan band includes an internal surface and an external surface, wherein the internal surface is radially closer to the axis of rotation of the fan than the external surface, the ends receiving a portion of the fan band there-between such that the first end is adjacent to the internal surface and the second end is adjacent to the external surface.
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