Abstract: A heat exchanging system includes a condenser including a heat exchanging chamber containing a heat exchanging medium therein and having an inlet end for entrance of the heat exchanging medium, and an outlet end for discharge of the heat exchanging medium; a control device; a water mist generating device having a spray pipe for spraying water into the heat exchanging chamber in a mist manner, a supply pipe for supplying water into the spray pipe, and a water valve for controlling the water supply of the supply pipe; a variable speed fan motor operated by the control device; and a sensing device having a first sensor mounted in the heat exchanging chamber, a second sensor mounted to the water mist generating device, and a third sensor mounted to the variable speed fan motor.

Abstract: A water filtering type air cleaning unit includes a housing having an upper side defining an air draining conduit and a lower side defining an air inlet conduit, a water permeable air filtering device mounted in the air draining conduit and including a plurality of stacked air filtering pipes, a water permeable disk mounted on a top edge of the water permeable air filtering device, a cold water heat exchanging device mounted in the air inlet conduit and including a cold water inlet and a cold water outlet connected with the water permeable disk, a water pump mounted in the air inlet conduit and connected with the cold water inlet, a water tank mounted in the air inlet conduit and connected with the water permeable air filtering device and the water pump, a natural convention device mounted in the housing and including a plurality of closed circulating pipes each filled with a refrigerant, and a vent mounted in the housing and including an upper side formed with an air outlet and an air inlet.

Abstract: A cooling water tower has a water container, a fan motor, a controller, an air outlet, a first sensor, a second sensor, a pump, and an air conditioning device. The air conditioning device has an air cooling condenser, a freezing agent control device, a compressor, and an evaporator. The air outlet is disposed on a top portion of the water container. The first sensor is disposed on the air outlet. The second sensor is disposed on the bottom of the water container. The fan motor is disposed on the top portion of the water container. The controller is disposed on the fan motor.

Abstract: An air outlet control device has a fan motor, a setting unit, a detecting unit, an air outlet, a box disposed on the air outlet, a plurality of sleeves disposed on the box, a vent ring disposed on the box, a plurality of bars disposed in the vent ring to position a cylinder seat, a screw rod inserted in the cylinder seat, a main motor connected to the screw rod, a control unit disposed on the main motor, a fastener inserted in a distal end of the screw rod, a guide plate covering the box, and a plurality of positioning pins disposed on the guide plate and inserted in the sleeves.

Abstract: A ventilation control device is disposed in a bathroom. The ventilation control device has a switch board, a controller connected to the switch board, a sensor connected to the controller, and a fan motor connected to the controller. The controller outputs a signal to initiate the fan motor to change a rotating speed.

Abstract: A ventilator control device has a hollow lower seat, a hollow upper seat disposed on the hollow lower seat, and a block disk disposed between the hollow lower seat and the hollow upper seat. The hollow lower seat has a top flange and a top notch. A lower cushion surrounds the hollow lower seat and is blocked by the top flange. The upper seat has a bottom flange, a bottom notch, and a protrusion. An upper cushion surrounds the hollow upper seat and is blocked by the bottom flange. The block disk has an axle and an opposite block seat. The axle and the opposite block seat are arranged along an axis. A motor seat is inserted in the top notch. The motor seat receives a motor. The motor has a block inserted in the block seat. A controller is disposed on the hollow lower seat to control a rotation of the motor and a vibration of the block disk.

Abstract: The present air conditioning system with ice storing and cooling capacity can generate and store ice in its pipe assembly or in an ice storage tank particularly equipped for the system, depending on the type of the air conditioning system. The system is characterized in particular in that ice can be produced and stored in the air conditioning system whereby the time of supplying cooled air can be effectively extended with the merit that the operation cycle of the on and off of the compressor can be prolonged, extending the operation lifespan of the compressor in one aspect. In another aspect, ice production and storage in great amount can be performed in an off-peak period of the electrical power consumption and the stored ice can be utilized in the peak period of the power consumption so as to provide supplemental cooling capacity for the compressor of the air conditioning system whereby the shift of peak and off-peak power consumption can be effected with ease.

Abstract: A VAV air conditioning system has a micro-computer control device, a main fan motor, a by-pass fan motor, a heat exchange pipe assembly. The micro-computer control device has a function setting unit, temperature detecting units, a central processing unit and an output control unit and a power supply unit. A control circuit is used to control the main fan motor to supply air led through the heat exchange pipe assembly in accordance with a loading requirement in a closed space so that the temperature thereof can be precisely controlled. As a conditioning loading is lowered, the control circuit can make the main fan motor slow down so as to reduce the supply of conditioned air volume, causing a decrease of main air supply. In the meanwhile, the control circuit outputs another power variable signal to a by-pass fan motor which can produce air supply led directly into the closed space without going through the heat exchange pipe assembly.

Abstract: An improved micro-computer operated control device for an air conditioning system which is specially characterized in that the air volume produced by the air conditioning system can be automatically varied in correspondence to the temperature of a closed space is disclosed. A number of temperature sensing components are constantly monitored by a processing unit of the temperature data thereof which are compared with predefined temperatures provided by a function setting unit; the results of the comparisons are transformed into corresponding signals which are then transmitted to an output control unit; and a voltage regulator is actuated in accordance to the signals to adjust the voltage of the motor of a fan supplied by a power source so that the operation speed of the fan can be constantly varied in correspondence to the external temperatures, resulting in the air volume delivered by the fan varied accordingly.

Abstract: The present invention is related to the fluid flow sensing and switching device installed in an air-conditioning system, particularly in a heat exchanger, which has a hollow body or housing to accommodate a metallic sensing member with a pair of conductive terminals extending out thereof, while it is further sealed by resin. A ring member is slidably mounted with a pair of legs extending downwardly from the hollow body, which is positioned facing the fluid flow, so as to activate the metallic sensing means and further to control a compressor connected with the system.

Abstract: An alarm device adapted particularly for the indication of electrical leakage and mal-insulation of electrical appliances disposed in association with a marine tank for use in fish raising. An electrical leakage sensor unit is provided in the tank, to which are electrically plugged the illumination light, air pump, temperature controller, water filter member, germicidal light, so that an alarm signal led via an IC comparator and further to a sonic frequency vibrator for transformation and further to an signal amplifier and subsequently to a parallelly-connected buzzer and red-light indicator to simultaneously alarm the operator of the hazard of electrical leakage and mal-insulation.