Abstract:
Systems and methods of managing appliances distributed throughout a geographic area enable control of the appliances in response to regionally localized events. An asset management server determines the location of the appliances throughout the geographic area and issues commands to appliances in a specified region which cause the appliances to change local control parameters to address the event. An asset management server also receives operating data from the appliances and uses the operating data to determine when regional events are occurring based on localized anomalies in the operating data. Refrigeration appliances have GPS receivers so that the locations of the appliances in the geographic area can be verified. Further, refrigeration appliances have primary and secondary operating modes. Secondary operating modes may be address certain regional events that can occur from time to time.
Abstract:
Appliances for use under appliance leasing agreements include a memory that stores a local parameter defining a lockout time at which the appliance will be locked out from performing an appliance leasing function and a controller that is configured to automatically switch the appliance from an operating mode to a locked mode at the stored lockout time. An asset management system for leased refrigeration appliances can include a remote server for sending a command to appliances which changes the lockout time stored in local memory. An encrypted key generator may also be used to enable a user to locally update the lockout time stored in the memory upon entry of an encrypted key.
Abstract:
A refrigeration system for use in a refrigerator unit, the refrigeration system including a compressor having an ON state and an OFF state, a condenser, a temperature sensor, an evaporator, and an evaporator fan motor assembly. The evaporator fan motor assembly has an evaporator fan motor, a fan blade, and an internal control system. The internal control system of the evaporator fan motor assembly is adapted to sense the compressor state and is further adapted to operate the evaporator fan motor in response to the sensed compressor state. The refrigeration system may further include a condenser fan motor assembly. The condenser fan motor assembly has a condenser fan motor, a fan blade, and an internal control system. The internal control system of the condenser fan motor is adapted to sense the compressor state and is further adapted to operate the condenser fan motor in response to the sensed compressor state.
Abstract:
An ice maker for forming ice during a cooling cycle, the ice maker having a variable-speed compressor, a condenser, and an evaporator, wherein the variable-speed compressor, the condenser, and the evaporator are in fluid communication by one or more refrigerant lines. The ice maker further includes a freeze plate thermally coupled to the evaporator, a water pump, a sensing device for identifying a state of the cooling cycle, and a controller adapted to control the speed of the variable-speed compressor based on the identified state of the cooling cycle. The ice maker may also include a variable-speed condenser fan which may be controlled by the controller based on the identified state of the cooling cycle. Additionally, the water pump may be a variable-speed water pump which may be controlled by the controller based on the identified state of the cooling cycle.
Abstract:
An ice maker for forming ice using a refrigerant capable of transitioning between liquid and gaseous states, the ice maker comprising a compressor, a condenser, a thermal expansion device, an evaporator assembly, a freeze plate thermally coupled to the evaporator assembly, a sump located below the freeze plate, and a guide which permits the sump to move from a first position to a second position. The ice maker may be disposed on top of an ice storage bin having a hole through which ice produced by the ice maker may fall and when the sump is in the first position, water can be recirculated from the sump to the freeze plate by a water pump, and when the sump is in the second position, the sump is adapted to cover the hole of the ice storage bin.
Abstract:
An ice storage bin assembly comprising an ice storage bin having a cavity for the storage of ice and an opening for access to the cavity. An ice dispensing chute is disposed internal to the ice storage bin and comprises an inlet and an outlet. Ice can be directed into the inlet where it is carried by gravity down to the outlet and deposited in a bucket disposed below the outlet. An ice dispensing chute closure means closes the inlet of the ice dispensing chute. The closure means can comprise a scoop adapted to be received in and seal the inlet of the ice dispensing chute or a raised portion disposed on the back side of a door which is adapted to seal the inlet of the ice dispensing chute when the door is closed.
Abstract:
An ice storage bin assembly including an ice storage bin having a cavity for the storage of ice and an opening which provides access to the cavity for retrieval of ice stored therein. The ice storage bin assembly further includes a door rotatably connected to the ice storage bin by one or more hinges which permit the door to swing down from a closed position to an open position. When the door is in the closed position, the door closes the opening and when the door is in the open position, the cavity of the ice storage bin is accessible. Optionally, one or more hooks may be disposed on the back side of the door, such that the one or more hooks are adapted to temporarily retain a bucket when the door is in the open position.
Abstract:
A self-contained reach-in refrigerator has self-contained refrigeration system connected to a cabinet. A drain pan is below an evaporator of the refrigeration system. A thermally conductive bridge member provides thermal conduction between a defrost heater and the drain pan. An upper wall defining a top end of a product space in the cabinet can include a drain pan section below the evaporator, a fan section extending forward from the drain pan section, and a rear lip extending upward from a rear end of the drain pan section. The evaporator fan can be supported over the fan section to draw air from the product space through the fan section. A support member can be fastened to the rear lip to support the upper wall.
Abstract:
A self-contained reach-in refrigerator has self-contained refrigeration system connected to a cabinet. A drain pan is below an evaporator of the refrigeration system. A thermally conductive bridge member provides thermal conduction between a defrost heater and the drain pan. An upper wall defining a top end of a product space in the cabinet can include a drain pan section below the evaporator, a fan section extending forward from the drain pan section, and a rear lip extending upward from a rear end of the drain pan section. The evaporator fan can be supported over the fan section to draw air from the product space through the fan section. A support member can be fastened to the rear lip to support the upper wall.
Abstract:
An ice maker for forming ice during a cooling cycle, the ice maker having a variable-speed compressor, a condenser, and an evaporator, wherein the variable-speed compressor, the condenser, and the evaporator are in fluid communication by one or more refrigerant lines. The ice maker further includes a freeze plate thermally coupled to the evaporator, a water pump, a sensing device for identifying a state of the cooling cycle, and a controller adapted to control the speed of the variable-speed compressor based on the identified state of the cooling cycle. The ice maker may also include a variable-speed condenser fan which may be controlled by the controller based on the identified state of the cooling cycle. Additionally, the water pump may be a variable-speed water pump which may be controlled by the controller based on the identified state of the cooling cycle.