KR20070007997A - Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof - Google Patents

Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof Download PDF

Info

Publication number
KR20070007997A
KR20070007997A KR1020050062887A KR20050062887A KR20070007997A KR 20070007997 A KR20070007997 A KR 20070007997A KR 1020050062887 A KR1020050062887 A KR 1020050062887A KR 20050062887 A KR20050062887 A KR 20050062887A KR 20070007997 A KR20070007997 A KR 20070007997A
Authority
KR
South Korea
Prior art keywords
indoor
heating
cooling
flow rate
unit
Prior art date
Application number
KR1020050062887A
Other languages
Korean (ko)
Other versions
KR100748525B1 (en
Inventor
박종한
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR20050062887A priority Critical patent/KR100748525B1/en
Publication of KR20070007997A publication Critical patent/KR20070007997A/en
Application granted granted Critical
Publication of KR100748525B1 publication Critical patent/KR100748525B1/en

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/50Control or safety arrangements characterised by user interfaces or communication
    • F24F11/54Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2313/00Compression machines, plant, or systems with reversible cycle not otherwise provided for
    • F25B2313/023Compression machines, plant, or systems with reversible cycle not otherwise provided for using multiple indoor units

Abstract

A heating and cooling multi air conditioner and an indoor fan control method thereof are provided to remarkably reduce coolant flow noise of an indoor unit when the indoor units are operated in a heating mode and a cooling mode. A heating and cooling multi air conditioner includes an outdoor unit, a plurality of indoor units, a distributor, an indoor fan(35), an air flow rate selection part(53), and a controller(51). The plurality of indoor units have indoor heat exchangers, respectively. The distributor is disposed between the outdoor unit and the indoor units to distribute cold air corresponding to an operation mode of each indoor unit. The indoor fan is disposed at one side of the indoor heat exchanger to vary its speed. The air flow rate selection part is installed at each indoor unit to select a flow rate of each indoor unit. The controller controls the indoor fan by using a first air flow mode and a second air flow mode. The first air flow mode operates the indoor fan in any one level of a plurality of selected flow rate levels. The second air flow mode operates the indoor fan in an increased number of flow rate levels when the indoor unit is operated to heat and cool the indoor space.

Description

냉난방 동시형 멀티 에어컨 및 그의 실내팬 제어방법{MULTI AIR CONDITIONER HEATING AND COOLING SIMULTANEOUSLY AND INDOOR FAN CONTROL METHOD THEREOF} Simultaneous heating and cooling type air conditioner and its indoor fan control method {MULTI AIR CONDITIONER HEATING AND COOLING SIMULTANEOUSLY AND INDOOR FAN CONTROL METHOD THEREOF}

도 1은 종래의 냉난방 동시형 멀티 에어컨의 구성도, Figure 1 is a configuration of a conventional simultaneous cooling and heating type multi-air conditioning,

도 2는 본 발명의 일 실시예에 따른 냉난방 동시형 멀티 에어컨의 제어블록도, Figure 2 is a control block diagram of the simultaneous heating and cooling type air conditioner according to an embodiment of the present invention,

도 3은 본 발명의 일 실시예에 따른 냉난방 동시형 멀티 에어컨의 실내팬 제어방법을 설명하기 위한 도면이다. 3 is a view for explaining the simultaneous heating and cooling type air conditioner of the indoor fan control method according to an embodiment of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 * * Description of the Related Art *

10 : 실외기 11 : 압축기 10: outdoor unit 11: compressor

13 : 유로절환밸브 15 : 실외열교환기 13: flow path switching valve 15: outdoor heat exchanger

30 : 실내기 31 : 실내열교환기 30: 31 indoor units: an indoor heat exchanger

35 : 실내팬 51 : 제어부 35: the indoor fan 51: control section

53 : 풍량선택부 53: air volume selection unit

본 발명은, 냉난방 동시형 멀티 에어컨 및 그의 실내팬 제어방법에 관한 것 으로서, 더욱 상세하게는, 냉난방 동시 운전 시 냉방운전되는 실내기의 소음 발생을 억제할 수 있도록 한 냉난방 동시형 멀티 에어컨 및 그의 실내팬 제어방법에 관한 것이다. The present invention, air simultaneous type air conditioner, and as it relates to his indoor fan control method, and more particularly, a cooling and heating concurrent type air conditioner and its interior to suppress the noise of the indoor unit is a cooling operation during cooling and heating concurrent operation It relates to a fan control method.

도 1은 종래의 냉난방 동시형 멀티 에어컨의 구성도이다. Figure 1 is a conventional air-type simultaneous configuration of the air conditioner. 도시된 바와 같이, 냉난방 동시형 멀티 에어컨은, 각 실내를 냉방 또는 난방 할 수 있도록 배치되는 복수의 실내기(30)와, 각 실내기(30)에 냉매를 제공하는 실외기(10)와, 실내기(30) 및 실외기(10) 사이에 개재되어 실내기(30)의 운전 모드에 따라 냉매가 분배되도록 하는 분배기(40)를 구비하고 있다. And a cooling and heating concurrent type air conditioner includes: a plurality of indoor unit 30 disposed to the cooling or heating the inside of each room, the outdoor device 10 to provide a coolant to each indoor unit 30. As shown, the indoor unit (30 ) and it is interposed between the outdoor unit 10, and according to the operating mode of the indoor unit 30 is provided with a dispenser 40 such that the coolant is distributed.

실내기(30)는, 냉매가 실내 공기와 열교환되면서 냉방 또는 난방 기능을 수행하는 실내열교환기(31)와, 각 실내열교환기(31)의 일측에 배치되는 실내팽창장치(33)와, 각 실내열교환기(31)의 일측에 실내열교환기(31)의 열교환이 촉진되도록 함과 아울러 열교환된 공기가 실내로 토출되도록 하는 실내팬(35)을 구비하고 있다. An indoor unit 30, and the refrigerant with the room air and the heat exchanger as the cooling or the indoor heat exchanger (31) performing the heating function, the indoor expansion device 33 is disposed on one side of each of the indoor heat exchanger 31, the inside of each room also such that the heat exchange of the indoor heat exchanger 31 is promoted at a side of the heat exchanger 31 as well as the heat exchange air is provided with a indoor fan (35) to be ejected to the inside of the room.

실외기(10)는, 냉매를 압축하는 압축기(11)와, 압축기(11)의 토출측에 배치되어 냉매의 유로를 절환하는 유로절환밸브(13)와, 냉매가 실외공기와 열교환되는 실외열교환기(15)를 구비하고 있다. The outdoor unit 10, and a compressor 11 for compressing a refrigerant, the flow path switching valve 13 that is disposed on the discharge side of the compressor (11) switches the flow path of the refrigerant, an outdoor heat which the refrigerant exchanges heat with outdoor air exchanger ( 15) and a.

압축기(11)의 흡입측에는 기체상태의 냉매가 제공될 수 있도록 어큐뮬레이터(12)가 설치되어 있으며, 실외열교환기(15)의 일측에는 열교환이 촉진될 수 있도록 실외팬(17)이 구비되어 있다. And an accumulator 12 is installed so that the suction of the gaseous refrigerant side of the compressor 11 can be provided, one side of the outdoor heat exchanger (15) has an outdoor fan (17) is provided so that heat exchange can be promoted. 냉매의 유동방향을 따라 실외열교환기(15)의 일측에는 체크밸브(23)를 구비한 우외유로(21)와 실외팽창장치(19)가 설치되어 있다. Along the direction of flow of the refrigerant side of the outdoor heat exchanger (15) has a right to oeyu 21 and the outdoor expansion device 19 is provided with a check valve (23).

한편, 분배기(40)는, 일단은 압축기(11)의 토출측에 연결되고 타측은 복수로 분기된 고압기관부(41)와, 일단은 압축기(11)의 흡입측에 연결되고 타측은 복수로 분기된 저압기관부(45)와, 일측은 실외열교환기(15)측에 연결되고 타측은 복수로 분기되어 각 실내기(30)에 연결되는 고압액관부(43)를 구비하고 있다. On the other hand, the dispenser 40 has one end with a plurality of side connected to the discharge side and the other the high pressure gas pipe (41) branches of the compressor 11, one end is branched into plural side connection and the other to the suction side of the compressor 11 the engine and the low pressure section 45, one side has a plurality of side branches is connected to the side of the outdoor heat exchanger (15) and the other with a high-pressure liquid pipe portion 43 is connected to each indoor unit (30). 분기된 각 고압액관부(43) 및 저압기관부(45)에는 해당 유로를 각각 개폐할 수 있도록 복수의 고압밸브(42) 및 저압밸브(46)가 각각 설치디어 있다. Each high-pressure liquid pipe 43 and the low pressure engine unit of a branch (45) has a plurality of media of the high pressure valve 42 and a respectively low-pressure valve 46 to open and close the flow path, respectively.

이러한 구성에 의하여, 각 실내기(30) 중 일부는 냉방운전되고 일부는 난방운전되며 냉방운전되는 실내기(30)의 수가 더 많은 냉난방 동시 운전 시, 유로절환밸브(13)는 압축기(11)에서 토출된 냉매가 실외열교환기(15)로 유동되도록 유로를 절환한다. With this arrangement, part of each indoor unit 30 is a cooling operation and some of which heating operation is discharged from a number when more cooling and heating simultaneous operation, the flow path switching valve 13, the compressor 11 of the indoor unit 30 is operated cooling the refrigerant is configured to switch the flow path to flow into the outdoor heat exchanger (15).

한편, 냉방운전되는 실내기(30)에 연결되는 저압밸브(46)는 개방되고 고압밸브(42)는 차단되며, 난방운전되는 실내기(30)에 연결되는 저압밸브(46)는 차단되고 고압밸브(42)는 개방된다. On the other hand, a cooling operation, a low-pressure valve 46 connected to the indoor unit 30, which are opened and cut off the high-pressure valve 42, the low-pressure valve 46 connected to the heating operation, the indoor unit (30) is blocked and the high pressure valve ( 42) it is opened.

고압기관부(41)를 따라 유동된 냉매는 난방운전되는 실내열교환기(31)로 유입되어 실내공기와 열교환되면서 난방기능을 수행하고, 난방기능을 수행한 냉매는 실외열교환기(15)를 경유한 냉매와 합류되어 냉방운전되는 실내기(30)로 유입된다. The flow along the high pressure gas pipe portion 41, the refrigerant is introduced into the indoor heat exchanger 31, which is the heating operation as the heat exchange with the room air, the refrigerant performs the heating function, and performing the heating function is via the outdoor heat exchanger (15) is joined with the refrigerant flows into the indoor unit 30 is operated cooling. 냉방운전되는 실내기(30)로 유입된 냉매는 실내팽창장치(33)를 통과하면서 감압팽창되고 실내열교환기(31)에서 열교환되면서 냉방기능을 수행하게 된다. The refrigerant flowed into the indoor unit 30, which is a cooling operation while being expanded under reduced pressure while passing through the indoor expansion device 33 and heat-exchanged by the indoor heat exchanger (31) and performs a cooling function. 냉방기능을 수행한 냉매는 저압기관부(45)를 따라 유동되어 어큐뮬레이터(12)로 유입되고, 어큐뮬레이터(12)의 내부의 기체상태의 냉매는 압축기(11)로 흡입되어 압축 및 토 출되는 과정을 반복하게 된다. The refrigerant performing the cooling function, the low pressure engine unit is flowing along the 45 flows into the accumulator 12, the refrigerant inside the gas-phase in the accumulator 12 is the process of Ex compression and soil is sucked into the compressor (11) a is repeated.

그런데, 이러한 종래의 냉난방 동시형 멀티 에어컨에 있어서는, 각 실내기(30)에 구비된 실내팬(35)은 냉방운전, 난방운전 또는 냉난방 동시운전에 관계없이 선택된 풍량모드, 예를 들면 "강", "중", "약" 중 어느 하나에 대응되게 일정한 풍량을 토출하도록 구성되어 있어, 냉난방 동시 운전 시 난방운전되는 실내기(30)의 실내열교환기(31)를 경유한 냉매가 충분한 과냉도를 확보하지 못하게 되면 냉방운전되는 실내기(30)로 유동되는 동안 배관의 압력 손실 등에 기인하여 2상 냉매, 즉 기액상태의 냉매로 되어 냉방운전되는 실내기(30)의 냉방 성능이 저하될 뿐만 아니라 소음을 유발하게 된다고 하는 문제점이 있다. By the way, in such a conventional cooling and heating concurrent type air conditioner, the indoor fan (35) provided to each indoor unit 30, for cooling operation, the air volume is selected, regardless of the heating operation or the cooling and heating concurrent operation mode, for example, "river", "in", "about" one to correspond to any one it is configured to discharge a uniform air flow, heating and cooling the same time the interior of the heating operation, the indoor unit 30, which during operation the heat exchanger 31. the refrigerant is secure a sufficient supercooling via When preventing and due to the pressure loss of the pipe while the flow into the indoor unit 30, which is a cooling operation, the two-phase refrigerant, that is in the liquid state refrigerant causes noise as well as be a cooling performance of the indoor unit 30 is operated cooling degradation there is a problem that will.

따라서, 본 발명의 목적은, 냉난방 동시 운전 시 냉방운전되는 실내기의 소음 발생을 억제할 수 있는 냉난방 동시형 멀티 에어컨 및 그의 실내팬 제어방법을 제공하는 것이다. Accordingly, it is an object of the invention to provide simultaneous heating and cooling type air conditioner and its indoor fan control method that can suppress the noise generation of the air cooling operation when the indoor units are cooling and heating simultaneous operation.

상기 목적은, 본 발명에 따라, 실외기와, 실내열교환기를 각각 구비한 복수의 실내기와, 상기 실외기 및 상기 실내기 사이에 배치되어 상기 각 실내기의 운전 모드에 대응되게 냉매가 분배되도록 하는 분배기를 구비한 냉난방 동시형 멀티 에어컨에 있어서, 속도 가변이 가능하며 상기 실내열교환기의 일측에 각각 배치되는 실내팬과; The above object is, according to the present invention, is disposed between the outdoor unit and a plurality of indoor units having an indoor heat exchanger, respectively, the outdoor unit and the indoor unit having a distributor such that the refrigerant is distributed to correspond to the operating mode of the respective indoor units in the simultaneous heating and cooling type air conditioner, a variable rate is possible, and the indoor fan are arranged on one side of the indoor heat exchanger and; 상기 각 실내기의 풍량을 선택할 수 있도록 상기 각 실내기에 구비되는 풍량선택부와; Said to select an air volume air volume of each of the indoor units selected to be provided to each of the indoor unit; 상기 실내기의 냉방 또는 난방 운전 시 상기 풍량선택부에 의해 선 택된 복수의 풍량 레벨 중 어느 하나로 상기 실내팬이 운전되도록 하는 제1풍량모드와, 상기 실내기가 냉방 및 난방으로 동시 운전되는 경우 상기 제1풍량모드의 각 풍량 레벨에 비해 소정 폭 증가된 복수의 풍량 레벨로 상기 실내팬이 운전되는 제2풍량모드를 가지고 상기 실내팬을 제어하는 제어부를 포함하는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨에 의해 달성된다. If during the cooling or heating operation of the indoor unit of one of the plurality of air volume levels selected line by said flow rate selecting section of the first flow rate mode, and the indoor unit such that the fan is operating the room where simultaneous operation in cooling and heating the first has a second flow rate mode in which the indoor fan is operating with a plurality of air volume levels increased a predetermined width by the cooling and heating concurrent type air conditioner which is characterized in that it comprises a control unit for controlling the indoor fan relative to each air volume level of the air flow mode It is achieved.

여기서, 상기 제2풍량모드의 각 풍량 레벨은 상기 제1풍량모드의 각 풍량 레벨에 비해 10% 내지 20% 증가된 풍량을 가지도록 구성되는 것이 바람직하다. Here, the second flow rate for each level of the air flow mode is preferably configured to have an increased flow rate from 10% to 20% compared to the respective air volume level of the first flow rate mode.

한편, 본 발명의 다른 분야에 따르면, 실외기와, 실내열교환기와 속도 가변이 가능한 실내팬을 각각 구비한 복수의 실내기와, 상기 실외기 및 상기 실내기 사이에 배치되어 상기 각 실내기의 운전 모드에 대응되게 냉매가 분배되도록 하는 분배기를 구비한 냉난방 동시형 멀티 에어컨의 실내팬 제어방법에 있어서, 냉방 및 난방 동시 운전 여부를 확인하는 단계와; According to another aspect of the present invention, is disposed between the outdoor unit and the indoor heat exchanger and the speed and plurality of indoor unit that is variable is provided with a possible indoor fan, respectively, the outdoor unit and the indoor unit to correspond to the operation mode of each indoor unit refrigerant an indoor fan according to a control of the simultaneous cooling and heating type multi-air conditioner provided with a dispenser method of dispensing such that the step to determine whether the cooling and heating concurrent operation and; 냉방 및 난방 동시 운전 시 난방 운전되는 각 실내기의 풍량을 확인하는 단계와; Confirming the flow rate of each indoor unit is a heating operation during the cooling and heating concurrent operation and; 상기 난방 운전되는 각 실내기의 선택된 풍량에 비해 소정 폭 증가된 풍량으로 상기 각 실내팬이 회전되도록 상기 각 실내팬을 제어하는 단계를 포함하는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨의 실내팬 제어방법이 제공된다. Each of the indoor fan is rotated so that said each indoor fan cooling and heating concurrent type air conditioner comprising the step of controlling the indoor fan control method in a predetermined width increased air flow relative to the selected flow rate of each indoor unit is operating the heating It is provided.

여기서, 상기 각 실내팬을 제어하는 단계에서 상기 각 실내팬은 냉방 또는 난방 운전 시 풍량에 비해 10% 내지 20% 증가된 풍량으로 회전되도록 하는 것이 바람직하다. Here, each of the indoor fan in the step of controlling each of the indoor fan is preferably so as to be rotated with an increased flow rate from 10% to 20% compared to the air flow during the cooling or heating operation.

이하, 첨부된 도면을 참조하여 본 발명에 대해 상세히 설명한다. With reference to the accompanying drawings, the invention will be described in detail.

도 2는 본 발명의 일 실시예에 따른 냉난방 동시형 멀티 에어컨의 제어블록도이고, 도 3은 본 발명의 일 실시예에 따른 냉난방 동시형 멀티 에어컨의 실내팬 제어방법을 설명하기 위한 도면이다. 2 is a control block diagram of cooling and heating concurrent type air conditioner according to an embodiment of the present invention, Figure 3 is a view illustrating a cooling and heating concurrent type indoor fan control of air conditioner method according to one embodiment of the present invention. 전술 및 도시한 구성과 동일 및 동일 상당부분에 대해서는 도면 설명의 편의 상 도시를 생략하고 동일한 참조부호를 인용하여 설명하기로 한다. A description is omitted for convenience of the diagram shown the description of the above-described and illustrated configuration, and the same, and the same large part citing the same reference numerals. 도 2에 도시된 바와 같이, 본 냉난방 동시형 멀티 에어컨은, 속도 가변이 가능하며 실내열교환기(31)의 일측에 각각 배치되는 실내팬(35)과; 2, the simultaneous heating and cooling type air conditioner and this is a variable speed is possible and the indoor fan 35 is disposed respectively on one side of the indoor heat exchanger (31); 각 실내기(30)의 풍량을 선택할 수 있도록 각 실내기(30)에 구비되는 풍량선택부(53)와; To select the flow rate of each indoor unit 30 and the flow rate selection part 53 is provided in each indoor unit (30); 실내기(30)의 냉방 또는 난방 운전 시 풍량선택부(53)에 의해 선택된 복수의 풍량 레벨 중 어느 하나로 실내팬(35)이 운전되도록 하는 제1풍량모드와, 실내기(30)가 냉방 및 난방으로 동시 운전되는 경우 제1풍량모드의 각 풍량 레벨에 비해 소정 폭 증가된 복수의 풍량 레벨로 실내팬(35)이 운전되는 제2풍량모드를 가지고 실내팬(35)을 제어하는 제어부(51)를 포함하여 구성되어 있다. And the first flow rate mode, such that the indoor fan 35, the operation of any one of a plurality of air volume level selected by the indoor unit 30, the cooling or heating operation when air flow selection part 53 of the, in the indoor unit 30, the cooling and heating If the simultaneous operation of the control section 51 for controlling the indoor fan (35) has a second flow rate mode in which the indoor fan 35 is operating with a plurality of air volume levels increased a predetermined width relative to each air volume level of the first flow rate mode, It is configured to include.

각 실내기(30)에는 속도를 가변할 수 있도록 구성된 실내팬(35)과, 각 실내기(30)에서 토출되는 풍량을 선택할 수 있도록 복수의 풍량 레벨, 예를 들면, 풍량 "강", "중", "약" 중 어느 하나를 선택할 수 있도록 풍량선택부(53)가 각각 구비되어 있다. Each indoor unit 30 is provided with an indoor fan 35 configured to vary the speed, a plurality of air volume levels to select the flow rate to be discharged from each indoor unit 30, for example, air volume "strong", "in" , the flow rate selection part 53 is respectively provided to select any one of "about".

한편, 제어부(51)는 통상 제어프로그램이 구비된 마이컴의 형태로 구현되며, 압축기(11)와 유로절환밸브(13) 및 실외팽창장치(19)와, 실외팬(17) 등 실외기(10)의 구성요소를 제어하는 실외기제어부(52a)와 각 실내기(30)의 실내팽창장치(33) 및 실내팬(35) 등을 제어하는 실내기제어부(52b)로 구성된다. On the other hand, controller 51 is implemented in the form of a microcomputer having a normal control program, the compressor 11, and a directional valve 13 and the outdoor expansion device 19, outdoor fans 17 such as the outdoor units (10) the configuration consists of the outdoor control unit (52a) and the indoor control unit (52b) for controlling the indoor expansion device 33 and the indoor fan 35 and so on for each indoor unit 30 for controlling the element.

제어부(51)에는 각 실내기(30)의 운전 형태에 따라 각 실내팬(35)이 서로 다른 풍량모드로 구동될 수 있도록 풍량선택부(53) 및 실내팬(35)이 각각 전기적으로 연결되어 있다. There are each indoor fan 35 is another flow rate selection part 53, and the indoor fan 35 to be driven at a different flow rate mode is electrically connected to each in accordance with the operation form of each of the indoor units 30, control unit 51 .

여기서, 각 실내팬(35)의 풍량모드는 각 실내기(30)의 풍량선택부(53) 또는 운전모드에 따라 결정된 강, 중, 약 중 어느 하나로 실내팬(35)이 구동되는 제1풍량모드와, 실내기(30) 중 일부는 냉방운전되고 일부는 난방운전되는 냉난방 동시 운전 시 난방운전되는 실내기(30)의 실내열교환기(31)를 경유한 냉매의 충분한 과열도가 확보될 수 있도록 실내팬(35)의 풍량이 제1풍량모드의 각 풍량레벨에 비해 소정 폭 증가된 풍량레벨을 가지도록 실내팬(35)이 구동되는 제2풍량모드로 구성되어 있다. Here, the air flow mode of each of the indoor fan 35 is a first flow rate mode in which the driving indoor fan 35 of the determined steel, by any of the drugs according to the flow rate selection part 53 or the operation mode of each indoor unit (30) and the indoor unit 30, some of the cooling operation and some of the indoor fan so that sufficient overheating passed through the indoor heat exchanger 31 in the heating operation, the indoor unit 30, which is the heating operation during cooling and heating concurrent operation the refrigerant can be secured is the air volume of 35 as compared to each of the air volume level of the first flow rate mode configuration to a second mode in which the air flow drives the indoor fan (35) so as to have a predetermined width of the increased air volume level. 여기서, 제2풍량모드의 각 풍량레벨, 즉 제2풍량모드의 풍량 "강", "중", "약"은, 난방운전되는 실내열교환기(31)를 경유한 냉매의 과열도가 충분히 확보되도록 함과 아울러 사용자가 풍량의 증가를 거의 느끼지 못하도록 제1풍량모드의 풍량 "강", "중", "약"에 비해 대략 풍량이 10% 내지 20% 각각 증가된 풍량을 가지도록 구성하는 것이 바람직하다. Here, the second respective air volume level of the air flow mode, i.e. the second air volume "strong", "of", "about" in the air flow mode is secured is heated via the operating room where the heat exchanger 31 refrigerant superheat enough so that also the addition for the user to configure the increase in the flow rate hardly notice to prevent the first flow rate mode of the air volume "strong", to have the substantially air volume is increased by 10% to 20% air volume compared to the "in", "about" desirable.

이러한 장치적 특성을 가지는 본 발명에 따른 냉난방 동시형 멀티 에어컨의 실내팬 제어방법을 도 3을 참조하여 설명하면 다음과 같다. It will be described with reference to Figure 3 the device characteristics such a simultaneous cooling and heating type indoor fan control of air conditioner process according to the invention has as follows.

먼저 제어부(51)는, 각 실내기(30)로부터 운전신호를 수신하고(S10), 냉난방 동시 운전 여부를 확인한다(S20). First control section 51 receives the operation signal from each indoor unit 30, and determine whether (S10), simultaneous heating and cooling operation (S20). 각 실내기(30)가 모두 냉방운전되거나 모두 난방운전되는 경우(S20), 제어부(51)는 제1풍량모드의 풍량레벨 중 어느 하나로 각 실내팬(35)이 회전되도록 한다(S30). When each indoor unit 30 is all that is a cooling operation or heating operation all (S20), the control section 51 causes the rotation of any one each of the indoor fan 35 of the air volume level of the first flow rate mode (S30).

한편, 냉난방 동시 운전인 경우(S20), 제어부(51)는 난방운전되는 각 실내기(30)의 실내팬(35)의 선택된 풍량을 확인하고(S40), 선택된 풍량이 "강" 인 경우(S50) 제2풍량모드의 "강"으로 해당 실내팬(35)이 회전되도록 한다(S60). On the other hand, if the cooling and heating concurrent operation (S20), the control section 51 when confirm the selected volume of air blown out by the indoor fan (35) of each indoor unit 30, which is the heating operation (S40), and the selected flow rate is "river" (S50 ) such that the first indoor fan 35 is rotated in the "strong" mode, the second flow rate (S60).

선택된 풍량이 "중"인 경우(S70) 해당 실내팬(35)이 제2풍량모드의 "중"으로 회전되도록 하고(S80), 선택된 풍량이 "약"인 경우(S70) 해당 실내팬(35)은 제2풍량모드의 "약"으로 회전구동되도록 한다(S90). If the selected flow rate is "in" (S70), the indoor fan 35 is the case where the (S80), the selected flow rate to be rotated in the "in" of the second flow rate mode "about" (S70), the indoor fan (35 ) is to be driven rotated in the "weak" of the second flow rate mode (S90). 각 실내기(30)의 운전종료 신호가 입력되지 아니하면(S100) 전술한 과정(S10~S90)을 반복하여 수행되도록 한다. If not the operation stop signal of each indoor unit (30) is input (S100) to be performed by repeating the above process (S10 ~ S90).

이상 설명한 바와 같이, 본 발명에 따르면, 속도 가변이 가능하며 실내열교환기의 일측에 각각 배치되는 실내팬과; As described above, according to the present invention, it can be a variable speed, and an indoor fan which is arranged at one side of the indoor heat exchanger and; 각 실내기의 풍량을 선택할 수 있도록 각 실내기에 구비되는 풍량선택부와; To select the flow rate of each indoor unit and the flow rate selection part which is provided on each indoor unit; 실내기의 냉방 또는 난방 운전 시 풍량선택부에 의해 선택된 복수의 풍량 레벨 중 어느 하나로 실내팬이 운전되도록 하는 제1풍량모드와, 실내기가 냉방 및 난방으로 동시 운전되는 경우 제1풍량모드의 각 풍량 레벨에 비해 소정 폭 증가된 복수의 풍량 레벨로 실내팬이 운전되는 제2풍량모드를 가지고 실내팬을 제어하는 제어부를 포함하도록 함으로써, 냉난방 동시 운전 시 냉방운전되는 실내기의 소음 발생을 억제할 수 있는 냉난방 동시형 멀티 에어컨이 제공된다. If any one of a plurality of air volume level selected by the flow rate selecting unit during the cooling or heating operation of the indoor unit of the first flow rate mode and the indoor unit such that the indoor fan is operating that co-operation with air-conditioning and heating each of the air volume level of the first flow rate mode, the comparison by causing includes a first control unit for controlling the indoor fan has a second flow rate mode in which the indoor fan is operating with a plurality of air volume levels increased a predetermined width, the heating and cooling that can suppress the noise of the indoor unit is a cooling operation during cooling and heating concurrent operation simultaneous multi-type air conditioner is provided.

또한, 본 발명에 따른 냉난방 동시형 멀티 에어컨은 냉난방 동시 운전 시 냉방운전되는 실내기의 냉매 유동 소음을 현저하게 줄일 수 있어 아파트 등의 주거지역에 설치가 가능한 이점이 있다. Further, the simultaneous heating and cooling type air conditioner according to the present invention has an advantage capable of installation in a residential apartment, etc. can significantly reduce the refrigerant flow noise of the indoor unit is a cooling operation during cooling and heating simultaneous operation.

또한, 본 발명에 따르면, 냉방 및 난방 동시 운전 여부를 확인하는 단계와; Further, according to the present invention, the step to determine whether the cooling and heating concurrent operation and; 냉방 및 난방 동시 운전 시 난방 운전되는 각 실내기의 풍량을 확인하는 단계와; Confirming the flow rate of each indoor unit is a heating operation during the cooling and heating concurrent operation and; 난방 운전되는 각 실내기의 선택된 풍량에 비해 소정 폭 증가된 풍량으로 각 실내팬이 회전되도록 각 실내팬을 제어하는 단계를 포함하도록 함으로써, 냉난방 동시 운전 시 냉방운전되는 실내기의 소음 발생을 억제할 수 있는 냉난방 동시형 멀티 에어컨의 실내팬 제어방법이 제공된다. By having a step of controlling each of the indoor fan such that each of the indoor fan is rotated at an increased flow rate predetermined width compared with the selected flow rate of each indoor unit is a heating operation, which can suppress the noise of the indoor unit is a cooling operation during cooling and heating concurrent operation the simultaneous cooling and heating type multi-air conditioner of the indoor fan control method is provided.

Claims (4)

  1. 실외기와, 실내열교환기를 각각 구비한 복수의 실내기와, 상기 실외기 및 상기 실내기 사이에 배치되어 상기 각 실내기의 운전 모드에 대응되게 냉매가 분배되도록 하는 분배기를 구비한 냉난방 동시형 멀티 에어컨에 있어서, In the outdoor unit and a plurality of indoor units and the outdoor unit, and a simultaneous heating and cooling type air conditioner having a refrigerant distributor, so that the distribution is arranged between the indoor unit to correspond to the operation mode of each indoor unit having an indoor heat exchanger, respectively,
    속도 가변이 가능하며 상기 실내열교환기의 일측에 각각 배치되는 실내팬과; Possible to speed change, and an indoor fan which is arranged at one side of the indoor heat exchanger and;
    상기 각 실내기의 풍량을 선택할 수 있도록 상기 각 실내기에 구비되는 풍량선택부와; Said to select an air volume air volume of each of the indoor units selected to be provided to each of the indoor unit;
    상기 실내기의 냉방 또는 난방 운전 시 상기 풍량선택부에 의해 선택된 복수의 풍량 레벨 중 어느 하나로 상기 실내팬이 운전되도록 하는 제1풍량모드와, 상기 실내기가 냉방 및 난방으로 동시 운전되는 경우 상기 제1풍량모드의 각 풍량 레벨에 비해 소정 폭 증가된 복수의 풍량 레벨로 상기 실내팬이 운전되는 제2풍량모드를 가지고 상기 실내팬을 제어하는 제어부를 포함하는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨. If during the cooling or heating operation of the indoor unit of one of the plurality of air volume level selected by said flow rate selecting section of the first flow rate mode, and the indoor unit in which the indoor fan such that driving is simultaneously driving the cooling and heating the first air flow the air flow relative to each level of the mode of a plurality of air volume levels increased predetermined width indoor fan is simultaneous heating and cooling type air conditioner, which has a second flow rate mode in which the operation is characterized in that a control unit for controlling the indoor fan.
  2. 제1항에 있어서, According to claim 1,
    상기 제2풍량모드의 각 풍량 레벨은 상기 제1풍량모드의 각 풍량 레벨에 비해 10% 내지 20% 증가된 풍량을 가지도록 구성되는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨. The second flow rate for each level of the air flow mode is the first simultaneous heating and cooling type air conditioner being configured so as to have an increased flow rate from 10% to 20% compared to the level of each air volume flow rate mode.
  3. 실외기와, 실내열교환기와 속도 가변이 가능한 실내팬을 각각 구비한 복수의 실내기와, 상기 실외기 및 상기 실내기 사이에 배치되어 상기 각 실내기의 운전 모드에 대응되게 냉매가 분배되도록 하는 분배기를 구비한 냉난방 동시형 멀티 에어컨의 실내팬 제어방법에 있어서, One is disposed between the outdoor unit and the indoor heat exchanger and the speed change is a plurality of indoor units having an available indoor fan, respectively, the outdoor unit and the indoor unit provided with a dispenser so that the refrigerant is distributed in correspondence with the operation mode of each indoor unit air simultaneously in the indoor fan control method of the type air conditioner,
    냉방 및 난방 동시 운전 여부를 확인하는 단계와; Steps to check whether the cooling and heating concurrent operation and;
    냉방 및 난방 동시 운전 시 난방 운전되는 각 실내기의 풍량을 확인하는 단계와; Confirming the flow rate of each indoor unit is a heating operation during the cooling and heating concurrent operation and;
    상기 난방 운전되는 각 실내기의 선택된 풍량에 비해 소정 폭 증가된 풍량으로 상기 각 실내팬이 회전되도록 상기 각 실내팬을 제어하는 단계를 포함하는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨의 실내팬 제어방법. Each of the indoor fan is such that each of the indoor fan stage cooling and heating concurrent type of air conditioner indoor fan control method comprising the controlled rotation to the increased air volume predetermined width compared with the selected flow rate of each indoor unit is operating the heating.
  4. 제3항에 있어서, 4. The method of claim 3,
    상기 각 실내팬을 제어하는 단계에서 상기 각 실내팬은 냉방 또는 난방 운전 시 풍량에 비해 10% 내지 20% 증가된 풍량으로 회전되도록 하는 것을 특징으로 하는 냉난방 동시형 멀티 에어컨의 실내팬 제어방법. Each of the each of the indoor fan in the step of controlling the indoor fan cooling or heating operation during simultaneous heating and cooling type method of the air conditioner indoor fan control which is characterized in that so as to be rotated with an increased flow rate from 10% to 20% air volume.
KR20050062887A 2005-07-12 2005-07-12 Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof KR100748525B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20050062887A KR100748525B1 (en) 2005-07-12 2005-07-12 Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20050062887A KR100748525B1 (en) 2005-07-12 2005-07-12 Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof

Publications (2)

Publication Number Publication Date
KR20070007997A true KR20070007997A (en) 2007-01-17
KR100748525B1 KR100748525B1 (en) 2007-08-13

Family

ID=38010281

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20050062887A KR100748525B1 (en) 2005-07-12 2005-07-12 Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof

Country Status (1)

Country Link
KR (1) KR100748525B1 (en)

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2501301A (en) * 2012-04-19 2013-10-23 Dyson Technology Ltd Fan assembly with speed controller
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9004878B2 (en) 2009-11-06 2015-04-14 Dyson Technology Limited Fan having a magnetically attached remote control
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100408994B1 (en) * 2000-10-10 2003-12-06 엘지전자 주식회사 Cooling drive indoor fan control method for multitype airconditioner

Cited By (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10145388B2 (en) 2008-10-25 2018-12-04 Dyson Technology Limited Fan with a filter
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US9599368B2 (en) 2009-03-04 2017-03-21 Dyson Technology Limited Nozzle for bladeless fan assembly with heater
US10221860B2 (en) 2009-03-04 2019-03-05 Dyson Technology Limited Fan assembly
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US10006657B2 (en) 2009-03-04 2018-06-26 Dyson Technology Limited Fan assembly
US9004878B2 (en) 2009-11-06 2015-04-14 Dyson Technology Limited Fan having a magnetically attached remote control
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US9745988B2 (en) 2010-09-07 2017-08-29 Dyson Technology Limited Fan
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US10094581B2 (en) 2011-07-27 2018-10-09 Dyson Technology Limited Fan assembly
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9335064B2 (en) 2011-07-27 2016-05-10 Dyson Technology Limited Fan assembly
US9291361B2 (en) 2011-07-27 2016-03-22 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
GB2501301B (en) * 2012-04-19 2016-02-03 Dyson Technology Ltd A fan assembly
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
GB2501301A (en) * 2012-04-19 2013-10-23 Dyson Technology Ltd Fan assembly with speed controller
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus

Also Published As

Publication number Publication date
KR100748525B1 (en) 2007-08-13

Similar Documents

Publication Publication Date Title
US5467604A (en) Multiroom air conditioner and driving method therefor
US6973796B2 (en) Multi-air conditioner and operation method thereof
EP1437557B1 (en) Multi-type air conditioner with defrosting device
EP1659348A1 (en) Freezing apparatus
EP0715132B1 (en) Oil balancing operation control device for an air conditioner
KR100484802B1 (en) Frost removing method of air conditioner hanving two compressor
EP1371921A1 (en) Multi-type air conditioner and method for operating the same
KR101282565B1 (en) Multi-type air conditioner for cooling/heating the same time
EP1321727A2 (en) Heat pump type air conditioner
KR100547334B1 (en) The structure for pipe of air-conditioner
EP1944562B1 (en) Air conditioner
JP4477347B2 (en) Multi-type air conditioner having a plurality of distributor can block
EP1526341B1 (en) Multi-unit air conditioner and method for controlling the same
CN102706046B (en) air conditioning
JP5125124B2 (en) Refrigeration equipment
EP1445556B1 (en) Freezer
EP1394476B1 (en) Multi-air conditioner and operating method thereof
US7155928B2 (en) Refrigerating apparatus
KR101034204B1 (en) Cooling and heating system
JP2006343017A (en) Freezer
US7587909B2 (en) Multi type air-conditioner and control method thereof
US7204094B2 (en) Air conditioner
EP1475585B1 (en) Air conditioner
JP2723953B2 (en) Air conditioning apparatus
US20060162353A1 (en) Multi-type air conditioner for simultaneous heating and cooling use and method for withdrawing refrigerant therefrom

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20120727

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20130724

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20140724

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20150724

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20160722

Year of fee payment: 10

LAPS Lapse due to unpaid annual fee