Abstract:
PURPOSE: A compressor and a method for controlling an operation of an air conditioner are provided to reduce manufacturing costs by eliminating the necessity of mounting an oil regulator pipe between the compressors of the outdoor unit. CONSTITUTION: An air conditioner comprises two compressors(204a,204b) connected in parallel; oil separators mounted on the outlet ports of the compressors, and which separate oil from the refrigerant discharged from the compressors and return the separated oil to the compressors; a control unit(302) for operating the compressor for a predetermined time period in such a manner that the imbalance of the oil between the compressors is prevented; and an oil level detector for detecting oil levels of the compressors.
Abstract:
PURPOSE: An air conditioner with an oil distributing unit is provided to secure appropriate oil level in a pair of compressors. CONSTITUTION: A first compressor(1) and a second compressor(2) have a first accumulator(10) and a second accumulator(20), respectively. An oil distributing unit includes a first suction tube(31) connecting the first compressor and the first accumulator; a second suction tube(35) connecting the second compressor and the second accumulator; a first oil hole(32) formed on the first suction tube; a second oil hole(36) formed on the second suction tube; and an inverse U-shaped oil distributing tube(38) connecting the first accumulator and the second accumulator. The oil distributing tube is inverse U-shaped, and placed to penetrate upper parts of the first accumulator and the second accumulator, and has lower ends placed to be horizontal with the first oil hole and the second oil hole. The oil distributing tube forms a siphon structure to keep level of oil(L2) stored in the first accumulator and the second accumulator regardless of operation of the first compressor and the second compressor.
Abstract:
The present invention, for a control method of an air conditioner including one or more outdoor units with a compressor, a first heat exchanger, and a first expanding valve connected through a refrigerant pipe and one or more indoor units with a second heat exchanger connected to the outdoor units through the refrigerant pipe, detects the surrounding temperature of the first heat exchanger and the temperature of a liquid pipe of the first heat exchanger, detects pressure of a refrigerant pipe on a high pressure side among refrigerant pipes, calculates saturation temperature based on the detected pressure, calculates an actual subcooling degree based on the temperature of the liquid pipe and the saturation temperature, calculates a target subcooling degree based on the surrounding temperature, primarily detects an optimum level of a refrigerant amount by using the actual subcooling degree and the target subcooling degree, determines design information of the refrigerant pipe and the second heat exchanger, secondarily detects the optimum level of the refrigerant amount based on the surrounding temperature and the actual subcooling degree when the design information does not exist, thirdly detects the optimum level of the refrigerant amount based on the surrounding temperature and the actual subcooling degree when the design information exists, and outputs the optimum level of the refrigerant amount. The present invention improves the accuracy and speed of detecting and charging the refrigerant amount, secures the reliability and performance of the air conditioner, enables an installer and a consumer to save costs for charging a refrigerant, and reduces time for installing and repairing the air conditioner and detecting the refrigerant amount. [Reference numerals] (601) Select a refrigerant amount detection mode;(602) Operate the refrigerant amount detection mode;(603) Calculate an actual subcooling degree and a target subcooling degree by using an outdoor temperature, a liquid pipe temperature, and a saturation temperature;(604) Compare the actual subcooling degree with the target subcooling degree;(605) Refrigerant amount is under the constant amount ?;(606) Calculate additional charging refrigerant amount;(607) Calculate porosity by using the actual subcooling degree and the outdoor temperature;(608) A
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:
PURPOSE: A lens barrel including a barrel and a photographing device comprising the same are provided to protect lens unit from impact and contamination. CONSTITUTION: A lens cap assembly(112) is arranged in front of a lens unit. A lens protection assembly(113) is arranged between the lens unit and the lens cap assembly and is opened and closed. A barrel frame(114) has the lens unit, the lens cap assembly and the lens protection assembly. The barrel is formed with a material which transmits light.
Abstract:
PURPOSE: A photographing device and a control method are provided to enable a user to divide storage space of a storage medium into desired form. CONSTITUTION: A storage medium stores a photographed image. A storage medium partition unit(52) divides a storage space of the storage medium into a plurality of areas. A storage area selecting unit(53) selects an area where a photographed image is stored among the plurality of areas. A residual capacity calculating unit(54) calculates page number of images capable of storing in the selected area.
Abstract:
PURPOSE: A digital photographing apparatus, a method for controlling the same and a medium for recording the method are provided to prevent flicker by guiding a shutter speed to a user or setting the shutter speed in priority according to the frequency information. CONSTITUTION: A digital photographing apparatus includes a decision unit(120) and a shutter speed deduction unit(130). The decision unit compares the frequency of the lighting device and the frame rate of an imaging device. If the frequency of the lighting device is not the n/2 times of the frame rate of the imaging device, the shutter speed deduction unit deduces at least one shutter speed which is n/2 times of the reciprocal of the frequency.
Abstract:
PURPOSE: An apparatus for processing a digital image and a method for controlling thereof are provided to perform out-focusing effect around a subject by detecting the movement of the subject in a moving picture photographing process. CONSTITUTION: An image input unit(310) receives an input image. A controller(320) detects a moving subject from the input image and extracts an area which the moving subject is occupied as a subject area. The controller performs a sharpening filtering process with respect to the substrate area and performs a blurring filtering process with respect to an area excluding the substrate area. A storing unit(340) stores the sharpening and blurring filtered image.