摘要:
A solar radiation sensor of the type including a case, a filter provided on an upper surface of the case, and a photodetector disposed in the case for detecting the quantity of solar radiation coming through the filter, wherein the filter has a knurled inside surface for irregularly reflecting incident light, and the photodetector has a light-receiving surface extending obliquely at a predetermined angle of inclination whereby a proper sensitivity to oblique incident light can be maintained even when the sensor is mounted on a flat surface.
摘要:
In an air conditioning system for automotive vehicles, a thermal load on the system is detected, and a desired value of suction pressure of refrigerant gas to a variable capacity type compressor is calculated on the basis of the detected thermal load, in accordance with a predetermined suction-pressure vs. thermal-load characteristic. The suction pressure is controlled on the basis of the calculated desired suction-pressure value. A value of torque required for driving the compressor is calculated on the basis of the calculated suction pressure, on the basis of the detected thermal load in accordance with a predetermined required-driving-torque vs. suction-pressure characteristic. Engine rotational speed at idling is set on the basis of the calculated torque value.
摘要:
In an air conditioning system for vehicles which includes a compressor of a variable capacity type, a comparison is made between a compressor capacity required for an air conditioning control and a compressor capacity required for a demist control. The compressor capacity is controlled so as to be brought to greater one of the compressor capacities compared with each other. Alternatively, when it is judged that a windowpane is misted, the compressor capacity is increased and, simultaneously, the temperature of air blown into the compartment is raised. Alternatively, the compressor capacity is controlled so as to be increased within a range of a set maximum allowable capacity until the mist on the windowpane is cleared off when it is judged that the mist occurs on the windowpane.
摘要:
In a compressor control unit for an automobile air conditioner, there are provided an economizer switch, an acceleration detector, an electromagnetic clutch, a discharge adjuster and a control circuit whereby, based on signals from both the economizer switch and the acceleration detector, the control circuit controls the electromagnetic clutch and the discharge adjuster so as to obtain an optimum condition relative to both an air conditioning feeling and a driving ability of the automobile.
摘要:
An air conditioning system for automotive vehicles equipped with a control device capable of controlling to different values a setting temperature above which a compressor should operate or a discharge capacity of same in response to an operating position of the blower manually set by a manually operable airflow rate setting switch. Further, the control device is capable of controlling the setting temperature or the discharge capacity in response also to load conditions of the engine of the vehicle. Furthermore, if the blower is in a high rate operating position, the setting temperature or the discharge capacity is controlled to such a value that enables the compressor to achieve sufficient cooling capacity, regardless of the position of the economy switch.
摘要:
A cooling system includes a circuit for the adjusting of the capacity of a compressor of a refrigeration cycle, and a circuit for stopping a blower until an evaporator of the refrigeration cycle is substantially dewed after the starting of the compressor and a circuit for driving the compressor at the maximum capacity until the blower has begun to be driven. The evaporator is cooled quickly because the compressor is driven at its maximum capacity, so that the time of the stoppage of the blower can be short while preventing a bad odor from circulating.
摘要:
A thermoswitch in which two fixed terminals are provided to a base disposed in a bottomed housing and a movable contact mechanism is provided between the two fixed terminals so that the movable contact is connected or disconnected by the displacement of a thermosensitive member such as bimetal, wherein the basal portions of the fixed terminals projecting from the base after solidifed with a first resin and a recess formed by the housing and base is filled and solidified with a second resin such that lead wires connected to the fixed terminals are embedded in the resin. According to this device, penetration of water coming down along the lead wires is positively prevented by the two resin layers.
摘要:
A sheet cutter for finishing a booklet by cutting, with a cutter, edges of a bundle of sheets folded double, wherein it is possible to load booklets on a booklet stand of a booklet storing section that stores a plurality of booklets which have been subjected to cutting processing, by overlapping sheet faces, with a folded portion of each booklet facing upward.
摘要:
A blower control resistor device includes a plurality of resistors leading to resistor terminals, and a plurality of connecting terminals joined with the resistor terminals by thermal fuses. The joint portions between the resistor terminals and the connector terminals are concealed by a cover or the like so as to prevent an authorized modification of the resistor device. Preferably, one of the thermal fuses which is connected with a connector terminal near a power supply has a lower-melting point than other thermal fuses.
摘要:
A demist controller for an automobile air-conditioner includes a demist judgement unit for judging the need for a demist operation based on the relative humidity in the vicinity of the inside surface of a window glass of the automobile, and a correction unit for automatically correcting criteria for a judgement by the judgement unit in accordance with starting and stopping instructions manually given by the driver as occasion arises.