Abstract:
A wall-mounted air conditioner is provided to prevent impurities from being introduced into a cabinet of an indoor unit. An indoor cabinet(1) has a front grill(20) formed with front air inlets and an upper grill(30) formed with upper air inlets. A front shield part(40) is rotatively coupled with the indoor cabinet at an end for opening or closing the front air inlets. An upper shield part(50) slides with respect to the upper grill for opening or closing the upper air inlets.
Abstract:
본 발명은 이동통신 단말기에 관한 것으로서, 특히 무선 인터넷 망을 이용한 음성통신의 사용 가능여부를 나타내는 VoIP 표시부를 구비하여, 무선 인터넷망을 이용한 무선 인터넷 음성통신과 무선 전화망을 이용한 무선 전화 음성 통신 중에서 어느 하나의 음성 통신 방식을 선택할 수 있는 이동 통신 단말기에 관한 것이다.
Abstract:
PURPOSE: A heat pump boiler and controlling method thereof are provided to generate high energy efficiency in all temperature zones and to prevent COP(Coefficient of Performance) loss and the degradation of cold water generation in a defrosting operation. CONSTITUTION: A heat pump boiler comprises an outdoor device and a high-temperature water production unit(100). The heat exchanger, which heat-exchanges coolant and water, is installed in the outdoor device. A high-temperature water production unit comprises: a water pipe(130) which comprises a feeding water pipe(131) and a recirculating water pipe; a plurality of the heat exchangers(110,120) which exchanges heat of refrigerants and the water; a compressor(150) which is connected to the heat exchangers and changes capacity according to the set temperature; a buffer tank(140) which is connected to a water pipe and water; and an external wound heat exchanger(160) which is installed outside a compressor for collecting waste heat. [Reference numerals] (AA1,AA2) Water; (BB1,BB2) Refrigerant; (CC) Hot-water supply; (DD) Heating
Abstract:
A2A 실내기의 냉난방 운전과 A2W 실내기의 냉난방 및 급탕 운전을 시분할방법(TDM)으로 수행하는 히트펌프 시스템 및 그 제어방법을 제시한다. 또한, 시분할방법(TDM)으로 운전 시 A2A 실내기 또는 A2W 실내기의 난방 운전 시 냉매의 부족 현상을 해결하기 위한 히트펌프 시스템 및 그 제어방법을 제시한다. 이를 위해 본 발명의 히트펌프 시스템은 A2A 실내기와 A2W 실내기의 동시운전 조건이라고 판단되면 A2A 실내기와 A2W 실내기를 번갈아 가며 교번 운전을 하도록 하는 제어부를 포함한다. 또한, 본 발명의 히트펌프 시스템은 냉매를 A2A 실내기와 A2W 실내기에 선택적으로 순환시키도록 하는 냉매분배부를 포함한다.
Abstract:
PURPOSE: An air-conditioner and a control method thereof are provided to prevent the change of the heat exchange property according to the location of a flow path. CONSTITUTION: An air-conditioner comprises a heat exchanger and expansion devices(7,8). The heat exchanger has a plurality of flow paths(11,12) in which the refrigerant flow. The expansion device is respectively installed in a plurality of flow paths. An opening degree of the expansion device is controlled relative to the indoor temperature and indoor humidity.
Abstract:
본 고안은 정속형 압축기와 단실린더 베인 제어형 압축기를 병렬로 연결하여 실내 공조부하의 요구능력에 따라 효과적으로 능력가변이 가능하면서도 저비용으로 구현할 수 있는 공기조화장치에 관한 것이다. 이를 위해 본 고안은 정속형으로 운전되는 제1압축기; 상기 제1압축기와 병렬 연결되고, 그 내부에 하나의 실린더를 가지고 베인을 제어하여 능력을 조절하는 제2압축기; 및 실내 공조부하의 요구능력에 따라 상기 제1 및 제2압축기의 능력을 가변 제어하는 제어부;를 포함하고, 상기 제2압축기의 베인을 제어하는 고압라인은 상기 제1압축기에 연결되어 단실린더형 베인 제어 시스템을 구성할 수 있다.
Abstract:
A control method of a complex air conditioning system is provided to prevent the mixing of air of different temperature and thus to improve the air conditioning efficiency. A control method of a complex air conditioning system comprises the steps of: determining whether a center air conditioning system for air-conditioning the inside regions of the building is controlled according to the heating schedule(401); calculating the center peak of the center air conditioning system according to the determination result(404); calculating the heating peak and cooling peak of system air conditioner air-conditioning the outside regions of the building(406); and comparing the center peak with the heating and cooling peaks, and controlling the opening/closing of the return port and the air vent of the center air conditioning system and the operation of the indoor unit of the system air-conditioner in order to prevent heat loss due to air mixing.
Abstract:
A temperature distribution measuring device, an air conditioner with the device, and a control method of the air conditioner are provided to increase the pleasant feeling of users in a room by improving the precision of air stream control. A temperature distribution measuring device includes a piezoelectric sensor(361) for sensing temperature by pryoelectricity, a shutter(310) for exposing the piezoelectric sensor toward a selected section, a shutter motor(370) for exposing the piezoelectric sensor to a plurality of selected sections in sequence, and a control part rotating the shutter motor and calculating temperature distribution according to signals output from the piezoelectric sensor to store the same.
Abstract:
A water-cooling type air conditioner is provided to heat water regardless of outdoor air and to prevent a compressor from overloading by supplying vapor refrigerant to a compressor from a gas-liquid separator directly. A water-cooling type air conditioner comprises a compressor(11), a condenser(12), a heating system(34) or a hot water supply system(37), a second electric valve(22), a gas-liquid separator(13), a first electric valve(14), and an injection valve(20). The compressor compresses refrigerant vaporized by heat-exchanging with ambient air in an evaporator. The condenser condenses refrigerant discharged at the compressor through heat transfer between water and refrigerant. The heating system or hot water supply system uses water heated as passing by the condenser. The second electric valve makes liquefied refrigerant discharged from the condenser two-phase refrigerant. The gas liquid separator divides the two-phase refrigerant into vapor refrigerant and liquid refrigerant. The first electric valve decompresses and expands the liquid refrigerant in the gas-liquid separator and transfers the decompressed and expanded liquid refrigerant. The injection valve is installed at an injection pipe sending the liquid refrigerant of the gas-liquid separator to the compressor.
Abstract:
본 발명은 이동통신 단말기에 관한 것으로서, 특히 무선 인터넷 망을 이용한 음성통신의 사용 가능여부를 나타내는 VoIP 표시부를 구비하여, 무선 인터넷망을 이용한 무선 인터넷 음성통신과 무선 전화망을 이용한 무선 전화 음성 통신 중에서 어느 하나의 음성 통신 방식을 선택할 수 있는 이동 통신 단말기에 관한 것이다.