Abstract: A structure for connecting wires in a steering wheel. The steering wheel is mounted on a steering shaft to steer an automobile. The steering wheel includes a frame coupled to the steering shaft. The frame is manipulated to steer the automobile. An electric device is arranged in the steering wheel. A connector provides the electric device with electric power. The connector is manually inserted in the steering wheel during assembly. A mount holds the connector. A hole extends through the shaft frame near the mount. A guide is provided for guiding the connector toward the mount when inserting the connector through the hole. The guide is located between the shaft frame and the main frame. This results in more efficient assembly while limiting the number of parts.

Abstract: A defrost control system comprises a superheat detector for detecting the degree of superheat of refrigerant leaving an evaporator or the presence of liquid in the refrigerant, a temperature sensor for sensing the temperature of a thermal load cooled by the evaporator and an electrically operable expansion valve for controlling the flow of refrigerant through the evaporator, each connected to a control circuit. In normal operation, the control circuit controls the flow of refrigerant to keep the temperature of the thermal load constant. However, if the superheat detector detects that the superheat is too low, the control circuit overrides the normal operation and reduces the flow of refrigerant. If the control circuit determines that the time spent in override condition over a period exceeds a maximum level, defrosting of the evaporator is triggered.