Abstract: Disclosed are an air conditioner and a control method therefor. The air conditioner includes: a main body; a filter configured to filter impurities externally introduced into the main body; a fan configured to introduce the impurities into the main body through the filter; a sensor configured to detect a filter state value for determining a state of the filter; and a processor configured to determine that a replacement time of the filter arrives when an impurity purification capacity calculated on the basis of the filter state value detected in real time by the sensor is lower than a reference value.

Abstract: Disclosed are an air conditioner and a control method therefor. The air conditioner includes: a main body; a filter configured to filter impurities externally introduced into the main body; a fan configured to introduce the impurities into the main body through the filter; a sensor configured to detect a filter state value for determining a state of the filter; and a processor configured to determine that a replacement time of the filter arrives when an impurity purification capacity calculated on the basis of the filter state value detected in real time by the sensor is lower than a reference value.

Abstract: An evaporator utilizes micro-channel tubes, and more particularly, has a structure of a heat exchanger using micro-channel tubes, which is applied to an evaporator of a household air conditioner. The evaporator, using micro-channel tubes, includes a first heat exchanging unit including a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward, and a second heat exchanging unit, installed adjacent to the first heat exchanging unit, includes a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward. A plurality of return pipes connect upper headers of neighboring heat exchanging units to transmit refrigerant between the neighboring heat exchanging units.

Abstract: An evaporator utilizes micro-channel tubes, and more particularly, has a structure of a heat exchanger using micro-channel tubes, which is applied to an evaporator of a household air conditioner. The evaporator, using micro-channel tubes, includes a plurality of heat exchanging units, each heat exchanging unit including a plurality of the micro-channel tubes installed between a pair of headers, and an integral header to transmit refrigerant between the neighboring heat exchanging units.

Abstract: An evaporator utilizes micro-channel tubes, and more particularly, has a structure of a heat exchanger using micro-channel tubes, which is applied to an evaporator of a household air conditioner. The evaporator, using micro-channel tubes, includes a first heat exchanging unit including a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward, and a second heat exchanging unit, installed adjacent to the first heat exchanging unit, includes a pair of upper and lower headers, and a plurality of the micro-channel tubes erected vertically between the headers so that condensed water flows downward. A plurality of return pipes connect upper headers of neighboring heat exchanging units to transmit refrigerant between the neighboring heat exchanging units.

Abstract: A heater exchanger used to condense a refrigerant in a refrigeration system. The heat exchanger is designed to perform a heat exchanging operation by the use of latent heat of water vaporization, thus having improved heat exchanging efficiency as well as a reduced size. The heat exchanger includes an upper header having a refrigerant inlet port and distributing a refrigerant introduced into the upper header through the refrigerant inlet port, a plurality of heat exchanging tubes connected at upper ends thereof to the upper header and extending in a vertical direction, a lower header connected to lower ends of the heat exchanging tubes and gathering the refrigerant flowing from the heat exchanging tubes, with a refrigerant outlet port formed in the lower header, and a water supply unit assembled with upper portions of external surfaces of the heat exchanging tubes, and feeding water to the tubes to cause water to flow along the external surfaces of the tubes.

Abstract: A heater exchanger used to condense a refrigerant in a refrigeration system. The heat exchanger is designed to perform a heat exchanging operation by the use of latent heat of water vaporization, thus having improved heat exchanging efficiency as well as a reduced size. The heat exchanger includes an upper header having a refrigerant inlet port and distributing a refrigerant introduced into the upper header through the refrigerant inlet port, a plurality of heat exchanging tubes connected at upper ends thereof to the upper header and extending in a vertical direction, a lower header connected to lower ends of the heat exchanging tubes and gathering the refrigerant flowing from the heat exchanging tubes, with a refrigerant outlet port formed in the lower header, and a water supply unit assembled with upper portions of external surfaces of the heat exchanging tubes, and feeding water to the tubes to cause water to flow along the external surfaces of the tubes.

Abstract: A heater exchanger used to condense a refrigerant in a refrigeration system. The heat exchanger is designed to perform a heat exchanging operation by the use of latent heat of water vaporization, thus having improved heat exchanging efficiency as well as a reduced size.

Abstract: An air conditioner heat-exchanger is provided to smoothen the air flowing through a plurality of the heat transfer tubes, thereby improving heat transference efficiency and heat-exchange effect, the air conditioner heat-exchanger having a plurality of flat fins arranged in parallel at a predetermined interval and a plurality of heat transfer tubes perpendicularly inserted to the plurality of flat fins, the plurality of heat transfer tubes being arranged against the air flowing direction (S) with a predetermined horizontal interval (X) and a predetermined vertical interval (Y) maintained therebetween to avoid the influence of the dead air region (P) formed therebehind.

Abstract: A heat exchanger includes parallel vertical fins through which horizontal heat exchanger tubes project. Each fin possesses groups of louver patterns, each group arranged between two vertically adjacent tubes. Each group of louver patterns is formed by first, second, third and fourth louver patterns arranged generally radially with respect to an adjacent tube. The louver patterns provide slits in the fin through which air can flow. The orientation of the louver patterns is such that a minimum vertical distance between vertically adjacent ones of the groups is shorter than an outer radius of a respective tube.

Abstract: The present invention relates to a heat exchanger for air conditioners having a plurality of a slit type grilles in each flat fin and making the air currents passing by the fin become turbulent flows and mixing the air currents together, to thereby improve the heat exchanging efficiency and reducing a cavitation zone formed in the back of each heat transfer pipe.

Abstract: A heat exchanger includes parallel fins mounted on heat-transfer pipes which project through the fins. Each fin includes groups of slits disposed between the pipes. Each group includes an upper tier of slits, and a lower tier of slits located below the upper tier. Each tier includes four slits arranged in a radiant (radial) relationship with respect to a respective pipe. Each slit has a cross section which becomes larger in a direction away from the respective pipe.