Power switch and baffle assembly having unidirectional drive motor for a refrigerator

Patent · Tue Mar 22 00:00:00 EST 1988

OSTI ID:5006922

Linstromberg, W J; Janke, D E

In a refrigerator having a cabinet defining a frozen food compartment and a fresh food compartment separated from each other by a divider wall, a through opening formed in the wall to enable cold air from the frozen food compartment to flow into the fresh food compartment; a baffle selectively closing the opening; a compressor; an evaporator fan for circulating chilled air within the frozen food compartment and through the opening into the fresh food compartment; temperature sensor means for measuring the temperatures of the fresh food and frozen food compartments and control means responsive to the temperatures sensor means for producing command signals indicative of the need to cool the compartments; a system for controlling the baffle, compressor and evaporator fan to maintain predetermined frozen food and fresh food compartment temperatures is described comprising: a cam having first and second control surfaces; first electrical switch means operated by movement of the first control surface to apply electricity from an external electrical power source selectively to the compressor and the defrost heater; means for coupling the cam to the baffle; motor means responsive to the command signals for moving the cam; and second electrical switch means operated by movement of the second control surface to apply feedback signals to the control means to indicate the position of the cam.

• Assignee: Whirlpool Corp., Benton Harbor, MI
• Patent Number(s): US 4732010
• OSTI ID: 5006922
• Resource Relation: Patent File Date: Filed date 27 Mar 1987
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
POWER SUPPLIES
SWITCHES
REFRIGERATORS
BAFFLES
AIR FLOW
BLOWERS
COMPRESSORS
CONTAINERS
CONTROL SYSTEMS
ELECTRIC MOTORS
EVAPORATORS
FOOD
FREEZING
TEMPERATURE CONTROL
WALLS
CONTROL
CONTROL EQUIPMENT
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
GAS FLOW
MOTORS
320106* - Energy Conservation
Consumption
& Utilization- Building Equipment- (1987-)