초록 ▼

An apparatus for driving a fan as part of a refrigerator is disclosed. The refrigerator has a compartment, a compressor, an evaporator and a condenser. A temperature sensor is positioned in association with the compartment and outputs a sensed temperature signal as a function of the temperature in t

An apparatus for driving a fan as part of a refrigerator is disclosed. The refrigerator has a compartment, a compressor, an evaporator and a condenser. A temperature sensor is positioned in association with the compartment and outputs a sensed temperature signal as a function of the temperature in the compartment. The apparatus includes a reference circuit which provides a desired temperature signal representative of a desired temperature. A comparator compares the desired temperature signal and the sensed temperature signal and generates a cool signal when the compartment temperature is above the desired temperature. A timer times out an elapsed period of time commencing when the cool signal is generated. A motor includes a rotatable assembly in driving relation to the fan. A control circuit controls operation of the motor as a function of the sensed temperature signal and the elapsed period. Related apparatus and methods are also disclosed.

대표청구항 ▼

An apparatus for driving an air moving assembly as part of a refrigerator having a compartment, the refrigerator including: a compressor for compressing a working fluid to be condensed in a condenser and to be evaporated in an evaporator for cooling the compartment; and a temperature sensor position

An apparatus for driving an air moving assembly as part of a refrigerator having a compartment, the refrigerator including: a compressor for compressing a working fluid to be condensed in a condenser and to be evaporated in an evaporator for cooling the compartment; and a temperature sensor positioned in association with the compartment for outputting a sensed temperature signal as a function of the temperature in the compartment; the apparatus comprising: a reference circuit for providing a desired temperature signal representative of a desired temperature; a comparator responsive to the reference circuit and the temperature sensor for comparing the desired temperature signal and the sensed temperature signal and for generating a cool signal when the compartment temperature is above the desired temperature; a timer responsive to the comparator for timing out an elapsed period of time in response to the cool signal; a motor including a rotatable assembly in driving relation to the air moving assembly; and a control circuit responsive to the timer and responsive to the temperature sensor for controlling operation of the motor as a function of the elapsed period as indicated by the timer and as a function of the sensed temperature signal as indicated by the temperature sensor.