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US 11,532,976 B2Granted
Reduced noise and vibration switched reluctance machine
OwnerPiyush Desai, Tim Knodel +2inventors
InventorsPiyush Desai, Tim Knodel, Bryan Knodel, Earl Fairall
Life of this patent
Estimating the term…
Abstract
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis; at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator having an outer surface and an outer surface active zone; a housing having a sleeve positioned only radially outward from the stator outer surface active zone; at least one housing endplate coupled to an end of said housing; and wherein said stator has no direct connection to said housing.
Claims38
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis;
- b. at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator comprising:
- i. a set of stator poles in magnetic communication with the set of rotor poles and each having a winding;
- ii. wherein at least two of said stator poles form a phase of the switched reluctance machine, and, when the phase is energized, at least one of the rotor poles aligns with a stator pole;
- and
- iii. a stator outer surface radially outward from said set of stator poles and having a stator outer surface;
- c. a housing comprising a sleeve portion having a sleeve inner surface and an outer sleeve surface, the sleeve located only radially outward from the stator outer surface;
- d. a gap between substantially all of the stator outer surface and substantially all of said sleeve inner surface, the gap represents a region of noise dampening around the stator and the rotor;
- e. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- f. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges.
8 more elements
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis;
- b. at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator comprising:
- i. a set of stator poles in magnetic communication with the set of rotor poles and each having a winding;
- ii. wherein at least two of said stator poles form a phase of the switched reluctance machine, and, when the phase is energized, at least one of the rotor poles aligns with a stator pole;
- and
- iii. a stator outer surface radially outward from said set of stator poles and having a stator outer surface;
- c. a housing comprising a sleeve positioned only radially outward from the stator outer surface;
- d. a gap between substantially all of the stator outer surface and the sleeve, the gap represents a region of noise dampening around the stator and the rotor;
- e. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- f. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges.
8 more elements
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis;
- b. at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator comprising:
- i. a set of stator poles in magnetic communication with the set of rotor poles and each having a winding;
- ii. wherein at least two of said stator poles form a phase of the switched reluctance machine, and, when the phase is energized, at least one of the rotor poles aligns with a stator pole;
- and
- iii. a stator outer surface radially outward from said set of stator poles and having a stator outer surface;
- c. a housing having a sleeve positioned only radially outward from the stator outer surface;
- d. wherein the stator is mechanically connected to the sleeve only via an intermediate structure;
- e. a gap between substantially all said stator outer surface and the sleeve, the gap represents a region of noise dampening around the stator and the rotor;
- f. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- g. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges.
9 more elements
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis;
- b. at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator comprising:
- i. a set of stator poles in magnetic communication with the set of rotor poles and each having a winding;
- ii. wherein at least two of said stator poles form a phase of the switched reluctance machine, and, when the phase is energized, at least one of the rotor poles aligns with a stator pole;
- and
- iii. a stator outer surface radially outward from said set of stator poles and having a stator outer surface;
- c. a housing having a sleeve positioned only radially outward from the stator outer surface;
- d. wherein stator and sleeve are not contiguous;
- e. a gap between the at least one stator and the sleeve, the gap represents a region of noise dampening around the stator and the rotor,
- f. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- g. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges.
9 more elements
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. at least one rotor arranged to rotate about a central axis, the at least one rotor comprising a set of rotor poles arranged about the central axis;
- b. at least one stator positioned concentric to and radially outward from both the central axis and the at least one rotor, the at least one stator comprising:
- i. a set of stator poles in magnetic communication with the set of rotor poles and each having a winding;
- ii. wherein at least two of said stator poles form a phase of the switched reluctance machine, and, when the phase is energized, at least one of the rotor poles aligns with a stator pole;
- and
- iii. a stator outer surface radially outward from said set of stator poles and having a stator outer surface;
- c. a housing having a sleeve positioned only radially outward from the stator outer surface;
- d. at least one housing endplate coupled to an end of said housing;
- e. wherein said stator is in connection with said sleeve only through said at least one endplate;
- f. a gap between the at least one stator and the sleeve, the gap represents a region of noise dampening around the stator and the rotor;
- g. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- h. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges.
10 more elements
A switched reluctance machine exhibiting reduced noise and vibration, the machine comprising:
- a. a housing comprising a sleeve;
- b. a central axis comprising a central axis active portion;
- c. at least one rotor and at least one stator radially outward from said central axis, said stator comprising a stator outer surface having a stator outer surface wherein each of the at least one rotor, at least one stator, and sleeve make up active zone components, and wherein an active zone extends between said active zone components, wherein;
- d. a gap between substantially all of said stator outer surface and said sleeve, the gap represents a region of noise dampening around the stator and the rotor, and wherein said gap fills substantially all of said active zone between said at least one stator and said sleeve;
- e. a plurality of connecting bridges designed to keep rotor/stator combination in alignment to one another and maintains the rotor/stator combination separated from the housing thereby creating the gap;
- and
- f. a pair of connecting bridge rings at each end of the plurality of connecting bridges, the pair of connecting bridge rings includes connecting bridge retaining tabs designed to accept connecting bridge apertures on the connecting bridges;
- and
- g. wherein the sleeve is radially outward from said gap, and only said sleeve and gap are radially outward from said at least one stator, which is radially outward from said at least one rotor, which is radially outward from said central axis active portion.
6 more elements
Dependencies are inferred from the claim text.