Abstract: A ventilation apparatus having a humidity adjusting and sterilizing device, and a method for controlling the same method are disclosed. A humidity adjusting and sterilizing device includes a channel allowing air to flow therein; a housing having a side in communication with the channel, the housing having the other sides closed; a tub mounted within the housing for holding water therein; and a microwave generator for humidifying the air within the channel and for sterilizing bacteria contained in the air of the channel by radiating the microwaves discharged into the channel. The humidity adjusting and sterilizing device includes a housing having a side in communication with the inlet channel, the housing having the other sides closed; a tub mounted within the housing for holding water therein; and a microwave generator for radiating microwaves into the housing and the tub and.

Abstract: A method of controlling a ceiling type air conditioner to rapidly generate uniform airflow in a room is disclosed. The method includes the steps of controlling the angle of the vanes to be a predetermined maximum angle to increase the airflow to a maximum airflow when initiating the ceiling type air conditioner, and decreasing the angle of the vanes from the maximum angle to a predetermined minimum angle step by step by a predetermined time interval to adjust the airflow. The airflow with the maximum rate can be supplied when initiating the air conditioner such that the chilled/heated airflow rapidly reaches the floor to improve the satisfaction of people in the indoor region. The rate of the airflow varies as time passes so that the uniform airflow can be rapidly supplied and the air conditioning efficiency can be improved.

Abstract: A an air conditioning system and a method for controlling the same are disclosed which are capable of achieving linked operations of a plurality of cooling/heating devices and a plurality of ventilation systems. The air conditioning system includes a plurality of cooling/heating devices each including at least one indoor unit, and an outdoor unit connected to the indoor unit such that they communicate with each other, to enable the outdoor unit to control the indoor unit, a plurality of ventilation systems each including at least one ventilation unit, and a controller connected to the ventilation unit such that they communicate with each other, to enable the controller to control the ventilation unit, and a central control unit connected to the cooling/heating devices and the ventilation systems such that they communicate with each other, to control linked operations of the cooling/heating devices and ventilation systems.

Abstract: A surface discharge type air cleaning device comprises an insulating dielectric body formed in the shape of a sheet, a discharge electrode formed at the upper surface of the insulating dielectric body, and a ground electrode formed at the lower surface of the insulating dielectric body. The discharge electrode is formed of a closed pattern having a predetermined area on the upper surface of the insulating dielectric body. The discharge electrode has a non-pattern part disposed in a pattern part where the pattern is formed. The electrode is not formed at the non-pattern part. The ground electrode is formed at a predetermined position corresponding to the non-pattern part. The area of the non-pattern part is reduced to decrease generation of ozone, and the area of the pattern part is enlarged to increase generation of negative ions and hydroxyl radicals.

Abstract: There is provided an air conditioning system and method for operating an air conditioner according to a user's physical response to external conditions. The air conditioning system includes: an indoor environment sensing unit/a personal characteristic value reception unit for measuring an indoor environment and the user's physical status so as to obtain information used to operate an air conditioner; a control unit including at least a microprocessor, for finding out personal characteristic values which are used to evaluate the user's physical status on the basis of information inputted from the personal characteristic value reception unit; and a driving unit controlled by the control unit, for promptly enhancing the user's physical status.

Abstract: Disclosed is an apparatus and method for controlling an air cleaning. The apparatus includes an air cleaning element, a current detector, an AC high-voltage generator and a control unit. The air cleaning element generates negative ions and ozone using a plasma discharge and cleans indoor air by the negative ions and ozone. The current detector detects a state of current passing through the air cleaning element. The AC high-voltage generator generates an AC high-voltage, and applies the AC high-voltage to the air cleaning element. The control unit varies a magnitude of the AC voltage applied-to the air cleaning element by the AC high-voltage generator depending on a current detecting signal received from the current detector. Therefore, ozone is adequately generated below a limit value depending on a state of indoor air, thereby increasing air cleaning performance so as to sterilize and clean contaminants more efficiently.

Abstract: Disclosed is an apparatus and method for controlling an air cleaning. The apparatus includes an air cleaning element, an AC high-voltage generator and a control unit. The air cleaning element generates negative ions and ozone using plasma discharge, and cleans indoor air using the negative ions and ozone. The AC high-voltage generator generates an AC high-voltage, and applies the AC high-voltage to the air cleaning element. The control unit varies at least one of the AC voltage and AC frequency applied to the air cleaning element by the AC high-voltage generator depending on a state of indoor air being cleaned using the air cleaning element. Therefore, it is possible to effectively generate negative ions while minimizing ozone generation to an acceptable level depending on a state of indoor air, thereby increasing air cleaning performance so as to sterilize and clean contaminants more efficiently.

Abstract: A surface discharge type air cleaning device comprises an insulating dielectric body formed in the shape of a sheet, and a discharge electrode and a ground electrode formed at one surface of the insulating dielectric body, the discharge electrode and the ground electrode being disposed in parallel with each other while the discharge electrode and the ground electrode are spaced a predetermined distance from each other. The discharge electrode has a plurality of pointed ends protruding toward the ground electrode. Consequently, electrical charge accumulation is prevented and continuous discharge is possible, even when a DC power source is used. In addition, entirely uniform and stable discharge at the surface of the dielectric body is accomplished, and therefore, the generated number of hydroxyl radicals and negative ions is increased while the generated amount of ozone is decreased. Also, discharge safety is increased, and therefore, air cleaning efficiency is improved.

Abstract: A compact ventilating system having an air purifying function is disclosed, which includes a case having one end buried in a ceiling of a room, and the other end projected toward the inside of the room; an air-supplying passage of communicating the outside of the room, the case, and the inside of the room with one another, to supply an outdoor air to the inside of the room; an air-discharging passage of communicating the inside of the room, the case, and the outside of the room with one another, to discharge an indoor air to the outside of the room; an air-circulating passage of communicating the inside of the room with one point of the air-supplying passage inside the case, to introduce the indoor air to the case, and to re-supply the air to the inside of the room; and a fan provided in the case, for supplying the outdoor air introduced to the case through the air-supplying passage to the inside of the room, or re-supplying the indoor air introduced to the case through the air-circulating passage to the insi

Abstract: Air conditioning system including at least one room cooling/heating unit for cooling/heating a room selectively, at least one ventilating unit for ventilating a room selectively, at least one air purifying unit for purifying contaminated room air selectively, and a controller provided so as to be able to communicate with the room cooling/heating unit, the ventilating unit, and the air purifying unit, for controlling above units interlocked with one another, thereby providing an air conditioning system in which a room cooling/heating function, a ventilating function, and an air purifying system are controlled, collectively.

Abstract: Air conditioning system and method for controlling the same are disclosed, the air conditioning system including user input means, display means for providing an environmental factor parameter setting up menu, a memory unit for storing the environmental factors, and parameters for the environmental factors, a ventilating fan, an air cleaning fan, and a control unit for calculating an environment index by using parameters of the environment factors set by the user, and controlling the ventilating fan and the air cleaning fan according to the environment index, thereby maximizing a sense of comfortability of the user, and minimizing health hazards such as multiple chemical sensitivity.

Abstract: The present invention provides a structure of an air cleaning system that prevents a suction performance from being decreased, the air cleaning system including a cabinet provided to a ceiling or a wall, discharging purified air to a room, and having a first inlet formed on a side thereof for drawing room air, a fan is provided to a cabinet and drawing air into the cabinet, a filter for purifying the room air flowed into the cabinet via the fan, and at least one panel for selectively opening/closing the first inlet of the cabinet.

Abstract: Air conditioning system including a temperature sensor for sensing a room temperature, an MET (metabolic) sensor for sensing an activity amount of people in a room, a dust sensor for sensing a dust amount, a gas sensor for sensing an intensity of smell, a VOC (Volatile Organic Compounds) sensor for sensing a compound amount, a fan driving unit for controlling an air flow rate, a heater for raising a room temperature, an anion generating unit for generating anion, and a control unit for controlling the fan driving unit and the heater according to an operation condition preset with reference to a sensed room temperature and the activity amount of people in the room, and controlling the fan driving unit and the anion generating unit according to an operation condition preset with reference to a sensed dust amount, the intensity of smell, and the VOC amount, thereby enhancing comfortability, and performing effective cleaning function, and displaying room cleanliness in real time on a screen, to improve a product

Abstract: Method for controlling an air purifier by using biorhythm including a first step of calculating total number of days (Delta_Time) a person in a room has lived by using the present year/month/date provided thereto or known through an inner counter, and birth year/month/date of the person in the room provided thereto, a second step of representing a physical rhythm state P_state, an esthetic state E_state, and an intellectual state I_state of the person in the room with the Delta_Time, numerically, a third step of setting a physical weight P-weight, an esthetic weight E, and an intellectual weight in correspondence to the P_state, E_state, and I_state, and a fourth step of controlling operation of the air purifier taking at least one of the P_weight, E_weight, and I_weight into account, whereby operating the purifier according to the biorhythm of the person in the room.

Abstract: Disclosed is a combination air purifier and ventilator. The air purifier in accordance with the present invention includes a case being provided on a ceiling or a wall and having a fan therein, a first passage communicating with an outside, an inside of the case and an room, having an air purifying member being provided between the inside of the case and the room, and guiding the external air into the room, a second passage communicating with the room, the fan, and the outside, and guiding the room air to the outside, and a damper provided in the case for isolating the first passage from the second passage for supplying the external air into the room and discharging the room air to the outside, or communicating with the fist and second passages to guide the room air drawn into the second passage back into the room after passing through the air purifying member.

Abstract: Ventilating and air purifying device including a case having a blower therein provided to a ceiling or a wall, a first flow passage provided between the blower and a room for making an outdoor, the blower, and the room in communication, a second flow passage for making the room, an inside of the case, and the outdoor in communication, and a damper in the case for isolating the first flow passage from the second flow passage so that room air is discharged to the outdoor and the room air is guided to the blower, or making the first flow passage and the second flow passage in communication so that the room air introduced into the second flow passage is guided to the blower, thereby ventilating and purifying the room air.

Abstract: Method for controlling an air flow rate of an air conditioning system, including the steps of measuring a concentration of volatile organic compounds in air periodically, calculating a value of concentration change from concentration values measured at the present time and in the past, and controlling the flow rate of air for cleaning or ventilating a room with reference to the present concentration and value of concentration change, whereby controlling a flow rate of room cleaning or ventilating air to cope, not only with concentration of organic compounds, but also with rapid change of the concentration of the organic compounds in the air.

Abstract: The present invention relates to a method for controlling flow rates of outdoor air supplied to a room and room air discharged to an outside of the room in ventilation. The method of the present invention includes the steps of supplying outdoor air drawn through an air supply duct to a room at a first flow rate, and discharging room air drawn through an air discharge duct to an outside of the room at a second flow rate higher than the first flow rate. The first and second flow rates vary with rotation speeds of fans respectively mounted on an air supply duct and an air discharge duct.