Electronically commutated motor, blower integral therewith, and stationary and rotatable assemblies therefor
First Claim
1. A motor assembly comprising:
- a support member adapted to be mounted on a stationary support for supporting said motor assembly and having a first side and a second side opposite the first side, said support member having at least one opening therein adapted to permit airflow therethrough;
a stationary assembly mounted on the first side of said support member and having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field;
an annular rotatable assembly on the first side of said support member and including a plurality of permanent magnetic elements surrounding said stationary assembly;
control means, connected to the winding stages and mounted on the second side of said support member, for applying a voltage to one or more of the winding stages at a time and for commutating the winding stages in a preselected sequence to rotate the rotatable assembly; and
impeller means on said rotatable assembly for moving air in heat exchange relationship with said control means and through the opening in said support member.
2 Assignments
0 Petitions
Accused Products
Abstract
A motor assembly for use in combination with an air handling system such as an automotive blower system for supplying cooling or heating air to a passenger compartment of an automobile. The assembly comprises a support member which is adapted to be mounted on the air handling system. Stationary and annular rotatable assemblies are mounted on one side of the support plate and a printed circuit board including a motor control circuit is mounted on the other side thereof. The stationary assembly has a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field. The annular rotatable assembly has a plurality of permanent magnet elements surrounding the stationary assembly and is adapted to engage a squirrel cage fan for moving air in the air handling system. The control circuit is connected to the winding stages for applying a voltage to one or more of the winding stages at a time and for commutating the winding stages in a preselected sequence to rotate the rotatable assembly. The support member has an opening in communication with apertures in the stationary and rotatable assemblies so that impellers on the rotatable assembly cool the control circuit by drawing air over it and through the opening and apertures.
117 Citations
40 Claims
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1. A motor assembly comprising:
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a support member adapted to be mounted on a stationary support for supporting said motor assembly and having a first side and a second side opposite the first side, said support member having at least one opening therein adapted to permit airflow therethrough; a stationary assembly mounted on the first side of said support member and having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field; an annular rotatable assembly on the first side of said support member and including a plurality of permanent magnetic elements surrounding said stationary assembly; control means, connected to the winding stages and mounted on the second side of said support member, for applying a voltage to one or more of the winding stages at a time and for commutating the winding stages in a preselected sequence to rotate the rotatable assembly; and impeller means on said rotatable assembly for moving air in heat exchange relationship with said control means and through the opening in said support member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A motor assembly for use in combination with an air handling system such as an automotive blower system for supplying air to a passenger compartment of an automobile, said assembly comprising:
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a support member adapted to be mounted on the air handling system and having a first side and a second side opposite the first side, said support member having at least one opening therein to permit airflow therethrough; a stationary assembly mounted on the first side of said support member and having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field; an annular rotatable assembly including a plurality of permanent magnet elements surrounding said stationary assembly and adapted to engage means for moving air in the air handling system; control means, connected to the winding stages and positioned on the second side of said support member, for applying a voltage to one or more of the winding stages at a time and for commutating the winding stages in a preselected sequence to rotate the rotatable assembly; and impeller means on said rotatable assembly for moving air in heat exchange relationship with said control means and through the opening in said support. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A motor assembly comprising
a support member adapted to be mounted on a stationary support for supporting said motor assembly and having at least one opening therein adapted to permit air flow therethrough; -
an annular rotatable assembly including a plurality of permanent magnet elements; a stationary assembly mounted on said support member and within and supporting said rotatable assembly, said stationary assembly having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field for rotating said rotatable assembly, said stationary assembly further having an aperture therein in communication with the opening in said support member; and impeller means on said rotatable assembly for moving air through said opening and said aperture. - View Dependent Claims (26, 27, 28, 29)
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30. A motor assembly comprising:
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a support member adapted to be mounted on a stationary support for supporting said motor assembly; an annular rotatable assembly including a plurality of permanent magnet elements and having at least one opening therein adapted to permit airflow therethrough; a stationary assembly mounted on said support member and within and supporting said rotatable assembly, said stationary assembly having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field for rotating said rotatable assembly, said stationary assembly further having an aperture therein in communication with the opening in said annular rotatable assembly; and impeller means on said rotatable assembly for moving air through said opening and said aperture. - View Dependent Claims (31, 32, 33, 34, 35)
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36. A motor assembly comprising:
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a support member adapted to be mounted on a stationary support for supporting said motor assembly and having at least one opening therein adapted to permit airflow therethrough; an annular rotatable assembly including a housing supporting a plurality of permanent magnet elements and impeller means on said housing located between said housing and said support member for moving air from a central area of said annular rotatable assembly to a peripheral area of said annular rotatable assembly; a stationary assembly mounted on said support member and within and supporting said rotatable assembly, said stationary assembly having a plurality of winding stages adapted to be electrically energized to generate an electromagnetic field for rotating said rotatable assembly; and impeller means on said rotatable assembly of r moving air in heat exchange relationship with said control means and through the opening in said support member. - View Dependent Claims (37, 38, 39)
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40. A rotatable assembly for use with a stationary assembly and control means in a dynamoelectric machine, said assembly comprising:
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an annular housing having a peripheral portion and having first and second opposite sides; a plurality of permanent magnet elements positioned around the peripheral portion of said housing;
said control means connected to winding stages and mounted on a side of said stationary assembly andimpeller means, on said housing, including a plurality of vanes mounted on the first opposite side for moving air in heat exchange relationship with the control means from a central area to a peripheral area of the dynamoelectric machine as said rotatable assembly is caused to rotate and including a plurality of fins mounted on the second opposite side for moving air in contact therewith.
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Specification