Abstract: A combination electricals package (12, 32) particularly for use with fractional horsepower compressor motors for various appliances has a first recess formed in the package for receipt of a motor starter (14) and a second recess formed in the package for receipt of a run capacitor (16) potted therein and having capacitor leads (16a) connected to a capacitor lead connecting portion (20e, 20e′) of a connector (20, 20′) also having a motor pin connecting portion (20d) and a motor starter connecting portion (20b). The capacitor lead connecting portion in a preferred embodiment includes spaced apart parallel extending rails to accommodate capacitor lead misalignment. In a modified embodiment the capacitor lead connecting portion includes quick connect receptacles for conventional capacitor quick connect terminals. The connectors are formed so that the same connector can be used in two opposite orientations for left and right connectors.

Abstract: A combination electricals package (12, 32) particularly for use with fractional horsepower compressor motors for various appliances has a first recess formed in the package for receipt of a motor starter (14) and a second recess formed in the package for receipt of a run capacitor (16) potted therein and having capacitor leads (16a) connected to a capacitor lead connecting portion (20e, 20e′) of a connector (20, 20′) also having a motor pin connecting portion (20d) and a motor starter connecting portion (20b). The capacitor lead connecting portion in a preferred embodiment includes spaced apart parallel extending rails to accommodate capacitor lead misalignment. In a modified embodiment the capacitor lead connecting portion includes quick connect receptacles for conventional capacitor quick connect terminals. The connectors are formed so that the same connector can be used in two opposite orientations for left and right connectors.

Abstract: An adaptive defrost control for a refrigerator is shown in which a single linear power supply (12) and microprocessor (U1) is used for both the adaptive defrost and cold control functions. According to a feature of the invention, a zero current crossing point switching scheme may be used to improve relay cycle life. According to another feature, a calibration procedure based on line frequency may be used to obtain multiples of a selected unit of time for any accumulated compressor run time and defrost heater energization times. According to another feature a sample and hold technique may be used to distinguish between noise and valid signals.

Abstract: A temperature control system and a thermal valve for said system composed of a housing having a gas inlet port connected to the refrigerant return line and a gas outlet port disposed in a compressor interior. A helical thermostat metal coil is fixed within and at one end of the housing, the other end of the coil being free to rotate with change in temperature. The thermostat metal for the coil is preferably chosen so that no movement thereof takes place until some predetermined temperature is reached, at which temperature rotation of the free coil end commences. The free coil end, either along or in conjunction with a baffle or the like, normally blocks the gas inlet port and prevents refrigerant gas from entering the housing and passing therethrough onto the compressor motor.

Abstract: A motor protector and starter particularly suited for refrigeration compressor motors are mounted in the recess of a first housing portion with their resilient female sockets disposed in alignment with a pin receiving aperture. Leads are attached to terminals of the motor protector and starter components and directed through lead receiving apertures in the side wall of the first housing portion. A second housing portion is then snapped onto the first housing portion to provide a combination housing which can be installed on a compressor in a one-step on-line operation.

Abstract: A motor protector of the type having a snap acting thermostatic element is shown particularly adapted for use with compressor motors in which a conventional three pin header is mounted on the compressor casing to allow electrical energization of the motor. An improved heat transfer path is formed between the windings of the motor and the thermostatic element of the protector by suspending the protector from one of the motor pins in optimum heat conductive relation therewith and thermally separated from the compressor casing and any component mounted on the other two pins.

Abstract: A motor protector of the type having a snap acting thermostatic element is shown particularly adapted for use with compressor motors in which a conventional three pin header is mounted on the compressor casing to allow electrical energization of the motor. An improved heat transfer path is formed between the windings of the motor and the thermostatic element of the protector by suspending the protector from one of the motor pins in optimum heat conductive relation therewith and thermally separated from the compressor casing and any component mounted on the other two pins.