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公开(公告)号：US20170342992A1
公开(公告)日：2017-11-30
申请号：US15163134
申请日：2016-05-24
CPC分类号： F04D25/08 , F04D29/282 , F04D29/283 , F04D29/4226 , F04D29/441 , F04D29/661
摘要： A centrifugal blower for HVACR applications includes a squirrel cage forward-curved blower fan and a scroll housing. The blower fan comprises a plurality of blades that are configured to emit air radially outward and tangentially from between the blades when the blower fan rotates at a first speed. The air so emitted has a deviation angle defined as the difference between the direction of the emitted air and the blade exit angle. The scroll housing has a spline-shaped wall that has an axial cross-section that is configured such that the deviation angle of the air emitted from the blower fan at an axial plane deviates by no more than fifteen percent circumferentially about the blower fan in-between the spline-shaped wall and the blower fan and such that the average tangential velocity of air between the spline-shaped wall and the blower fan deviates by no more than thirty percent.
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公开(公告)号：US20150270761A1
公开(公告)日：2015-09-24
申请号：US14730911
申请日：2015-06-04
CPC分类号： H02K11/40 , H02K5/1735 , Y10T29/49012
摘要： A grounding device for an electric machine, having a rotating component and a stationary component, includes a core fabricated from a non-conductive material and a plurality of conductive fibers coupled to the core and extending therefrom. The plurality of conductive fibers are configured to electrically couple the rotating component with the stationary component such that an electrostatic charge on the rotating component is directed through the plurality of conductive fibers to the stationary component.
摘要翻译： 一种具有旋转部件和固定部件的电机的接地装置，包括由非导电材料制成的芯体和耦合到芯体并从其延伸的多个导电纤维。 多个导电纤维被配置为将旋转部件与固定部件电耦合，使得旋转部件上的静电电荷被引导通过多个导电纤维到固定部件。
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公开(公告)号：US20180320697A1
公开(公告)日：2018-11-08
申请号：US15585852
申请日：2017-05-03
IPC分类号： F04D25/06 , F04D17/16 , F04D29/62 , F04D29/053 , F04D29/28
CPC分类号： F04D25/06 , F04D17/16 , F04D29/053 , F04D29/281 , F04D29/624
摘要： A blower assembly kit for fabricating a plurality of blower assemblies is provided. A first of the plurality of blower assemblies is configured for use with a first motor having a rotor and a second of the plurality of blower assemblies is configured for use with a second motor having a shaft. The kit includes a body having a member for generating air flow, a first adapter having a first connection for connecting the first adapter to the body and a second connection for connecting the first adapter to the rotor of the first motor, and having a second adapter having a first connection connecting the second adapter to the body and a second connection connecting the second adapter to the shaft of the second motor. The body and the first adapter provide the first blower assembly and the body and the second adapter provide the second blower assembly.
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公开(公告)号：US20220163039A1
公开(公告)日：2022-05-26
申请号：US17668820
申请日：2022-02-10
摘要： A centrifugal blower for HVACR applications includes a squirrel cage forward-curved blower fan and a scroll housing. The blower fan comprises a plurality of blades that are configured to emit air radially outward and tangentially from between the blades when the blower fan rotates at a first speed. The air so emitted has a deviation angle defined as the difference between the direction of the emitted air and the blade exit angle. The scroll housing has a spline-shaped wall that has an axial cross-section that is configured such that the deviation angle of the air emitted from the blower fan at an axial plane deviates by no more than fifteen percent circumferentially about the blower fan in-between the spline-shaped wall and the blower fan and such that the average tangential velocity of air between the spline-shaped wall and the blower fan deviates by no more than thirty percent.
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公开(公告)号：US09685843B2
公开(公告)日：2017-06-20
申请号：US14730911
申请日：2015-06-04
发明人： Steven W. Post , Shirish M. Vatkar , Joseph A. Henry , Michael David Smith , Gerald R. Muehlbauer
CPC分类号： H02K11/40 , H02K5/1735 , Y10T29/49012
摘要： A grounding device for an electric machine, having a rotating component and a stationary component, includes a core fabricated from a non-conductive material and a plurality of conductive fibers coupled to the core and extending therefrom. The plurality of conductive fibers are configured to electrically couple the rotating component with the stationary component such that an electrostatic charge on the rotating component is directed through the plurality of conductive fibers to the stationary component.
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