Rotor Assembly Having Ball Nut Cartridge
AssigneeBose Corporation
InventorsDaniel Charles Haferman, Andrew Joseph LaFosse, Christopher Alan Pare
Life of this patent
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Abstract
In one arrangement, a motor assembly includes a housing defining a housing chamber, a stator disposed within the housing chamber, and a rotor assembly disposed within the housing chamber. The rotor assembly includes a spindle housing defining a spindle housing chamber extending along a longitudinal axis of the spindle housing and a set of magnets disposed about an outer periphery of the spindle housing and in proximity to the stator. The rotor assembly includes a ball nut cartridge disposed within the spindle housing chamber of the spindle housing and a securing mechanism configured to secure the ball nut cartridge to the spindle housing.
Claims25
An actuator assembly, comprising:
- at least one motor assembly;
- and
- an output shaft moveably coupled to the at least one motor, the at least one motor assembly comprising:
- a motor housing defining a housing chamber,
- a stator disposed within the motor housing chamber, and
- a rotor assembly disposed within the motor housing chamber, the rotor assembly comprising:
- a spindle housing defining a spindle housing chamber extending along a longitudinal axis of the spindle housing;
- a set of magnets disposed about an outer periphery of the spindle housing and in proximity to the stator;
- a ball nut cartridge disposed within the spindle housing chamber of the spindle housing;
- and
- a securing mechanism configured to secure the ball nut cartridge to the spindle housing.
A motor assembly, comprising:
- a housing defining a housing chamber;
- a stator disposed within the housing chamber;
- and
- a rotor assembly disposed within the housing chamber, the rotor assembly comprising:
- a spindle housing defining a spindle housing chamber extending along a longitudinal axis of the spindle housing;
- a set of magnets disposed about an outer periphery of the spindle housing and in proximity to the stator;
- a ball nut cartridge disposed within the spindle housing chamber of the spindle housing;
- and
- a securing mechanism configured to secure the ball nut cartridge to the spindle housing.
A method for assembling a motor assembly, comprising:
- disposing a stator within a housing chamber of a motor housing;
- securing a bearing within a carrier assembly to form a bearing assembly;
- disposing at least a portion of a spindle housing within the bearing assembly, wherein a set of magnets are disposed about an outer periphery of the spindle housing disposed in proximity to the stator;
- disposing a ball nut cartridge within a spindle housing chamber of the spindle housing;
- securing the ball nut cartridge to the spindle housing to form a rotor assembly;
- and
- securing the rotor assembly to the motor housing.
Dependencies are inferred from the claim text.