Abstract: A solenoid unit of an electromagnetic valve includes a coil, a bobbin, a fixed iron core, a movable iron core, an urging spring, a magnetic frame, and a molded plastic part. The magnetic frame includes a frame end wall, two frame arms, and an internal thread hole, to which the fixed iron core is threaded. A tubular projection protrudes from an end face of the frame end wall that is on a side opposite to the bobbin. The projection forms part of the internal thread hole. The molded plastic part includes a molded end wall, which covers the frame end wall, and a molded peripheral wall. The molded end wall includes a connecting hole that is continuous with the internal thread hole. The connecting hole includes a groove in an inner circumferential surface. The groove extends along an outer circumferential surface of the projection.

Abstract: A solenoid unit of an electromagnetic valve includes a coil, a bobbin, a fixed iron core, a movable iron core, an urging spring, a magnetic frame, and a molded plastic part. The magnetic frame includes a frame end wall, two frame arms, and an internal thread hole, to which the fixed iron core is threaded. A tubular projection protrudes from an end face of the frame end wall that is on a side opposite to the bobbin. The projection forms part of the internal thread hole. The molded plastic part includes a molded end wall, which covers the frame end wall, and a molded peripheral wall. The molded end wall includes a connecting hole that is continuous with the internal thread hole. The connecting hole includes a groove in an inner circumferential surface. The groove extends along an outer circumferential surface of the projection.

Abstract: Provided is a low temperature display case, which comprises: a duct that is so formed that it communicates with a rear and a lower portion of a storage chamber having an opening at the front, an evaporator that is provided upright in a duct at a rear location, a blower for discharging, from an upper edge of the opening of the storage chamber, air that is cooled at the evaporator by heat exchange, a drain pan that is located at a bottom level of the duct and that is inclined downward toward a drain hole, defrosting heaters that are provided in a lower portion of the duct and that are located forward of a position under the evaporator, and a sharply sloped portion that is provided on the drain pan below the evaporator and that is inclined at a greater angle toward the drain hole than is the drain pan; wherein to defrost the evaporator a refrigerant at a high temperature is fed into the evaporator, and heat is generated by the defrosting heaters.