Matsushita Electric Industrial Co., Ltd.

Hideo Nishihata

Norio Yoshida

Toru Ichikawa

Naomi Goto

Nobuo Kagoroku

Nobuyuki Yamamoto

Naoki Nakamura

Shotarou Ito

A hermetic electric compressor includes a motor unit having a stator coil and a compressor unit driven by the motor unit for compressing refrigerant gas. A temperature sensor is provided at the stator coil for monitoring a temperature of the stator coil. A control unit is further provided to control a rotational frequency or speed of the motor unit via the stator coil depending on the monitored temperature of the stator coil. The temperature sensor and the control unit are connected via a shielded cable or a twisted pair. The shielded cable or the twisted pair may be grounded via a capacitor. Further, a thermostat may also be provided at the stator coil and connected in series to the temperature sensor.

Hermetic electric compressor with improved temperature responsive motor

A connector 30 is integrated in a hermetic compressor 10. A flange block 48 is secured on the connector 30 by a screw 62. The connector 30 and the flange block 48 have through-holes 38 and 50, respectively, and a tube 54 is inserted into through-hole 50. A flange 58 is integrally formed in a peripheral surface of one end portion of the tube 54. Also, an elastic ring 60 is fitted near the flange 58. The flange 58 and the elastic ring 60 are positioned in enlarged diameter portions 40 and 42 formed in the connector 30 so that the ring 60 seals against the tube 54 and the connector 30. With this arrangement, simply by tightening the screw using a screwdriver, the tube can be securely connected with the container.

Hermetic compressor having an inlet port and/or an outlet port with a

An automobile air conditioner for use in an automobile which has a generally rectangular box casing curved along a curvature of the ceiling of automobile and having an air inlet and an air outlet defined at opposite sides thereof, a generally elongated evaporator accommodated in the casing adjacent to the air inlet, a cylindrical blade wheel connected with a motor with their axes in a alignment for generating air flow through the evaporator, a stabilizer extending under the fan unit toward the air outlet, an air flow deflector for controlling the direction of air flow between the fan unit and the air outlet, and a diffuser with a beam on its lower surface for controlling the air flow above the cylindrical blade wheel toward the air outlet. By this structure, a flat and compact type of air conditioner for use in an automobile is provided.

Automobile air conditioner

The present invention provides an air conditioning apparatus for use in an automobile which employs a cross-flow fan as a ventilator, so that the apparatus is made thinner. The apparatus of the present invention is provided with a first and a second stabilizer, and accordingly a compulsory vortex of the air which is effective to feed the air is able to be stabilized. Moreover, a rear guider and an upper diffuser are provided in the surface opposite to the stabilizers with respect to the cross-flow fan, with enhancing the stabilization of the air flow. The reduction of the air flow amount and/or the generation of noises because of the vortex of the air can be consequently prevented. In the automobile air conditioning apparatus of the present invention, an evaporator has its upper end arranged to be inclined towards the cross-flow fan, so that the air flow into the cross-flow fan runs smoothly. Because of the arrangement of the above-described first and second stabilizers and the cross-flow fan, according to the present invention, the compulsory vortex of the air is generated at the optimum position and positively, thereby to make it possible to secure sufficient air amount and also to reduce noises, while realizing smooth and continuous flow of the air inside the room of the automobile.

Growing community of inventors

Otsu, Japan

Hideo Nishihata