Blower motor for HVAC systems
AssigneeNidec Motor Corporation
InventorArthur E. Woodward
Life of this patent
Estimating the term…
Abstract
A blower motor assembly having a variable speed motor that is suitable for replacing a PSC motor in a residential HVAC (heating, ventilation, and air conditioning) system. The blower motor assembly includes a variable speed motor and motor controller; a first power input for receiving a plurality of AC power signals from a control device for use in determining an operating parameter for the motor; and a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input.
Claims13
A blower motor assembly comprising:
- a variable speed motor and motor controller;
- a first power input for receiving a plurality of AC power signals from a control device;
- and
- a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input,
- wherein the control device is a furnace control board for an HVAC system in which the blower motor assembly is used, and
- the second power input permits start and stop delays, start ramp-ups, or stop ramp-downs to be programmed into the motor controller independently of any control functions provided by the furnace control board.
A blower motor assembly comprising:
- a variable speed motor and motor controller;
- a first power input coupled with the motor controller and comprising at least first, second, and third power connections for receiving at least three AC power signals from a control device;
- and
- a second power input for receiving AC power from an AC power source for powering the motor controller even when no AC power signals are received by the first power input,
- wherein the control device is a furnace control board for a furnace in which the blower motor assembly is used, and
- the second power input is connected to a power source applied to an input of the furnace control board and permits start and stop delays, start ramp-ups, or stop ramp-downs to be programmed into the motor controller independently of any start and stop delays provided by the furnace control board.
Dependencies are inferred from the claim text.