KR100408994B1 - Cooling drive indoor fan control method for multitype airconditioner - Google Patents
Cooling drive indoor fan control method for multitype airconditioner Download PDFInfo
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- KR100408994B1 KR100408994B1 KR10-2000-0059559A KR20000059559A KR100408994B1 KR 100408994 B1 KR100408994 B1 KR 100408994B1 KR 20000059559 A KR20000059559 A KR 20000059559A KR 100408994 B1 KR100408994 B1 KR 100408994B1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control 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
- F24F11/77—Control 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 by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
본 발명은 한 대의 실외기에 여러 대의 실내기가 연결된 멀티 에어컨의 실내팬 제어방법에 관한 것으로서, 특히 적은 대수의 실내기만 운전될 경우 실내팬의 풍량을 증대시켜 토출 온도가 떨어지지 않도록 하는 멀티 에어컨의 실내팬 제어방법에 관한 것이다.The present invention relates to a method for controlling an indoor fan of a multi-air conditioner in which a plurality of indoor units are connected to one outdoor unit. In particular, when only a small number of indoor units are operated, an indoor fan of a multi-air conditioner increases the air volume of the indoor fan so that the discharge temperature does not fall. It relates to a control method.
이와 같은 본 발명은 하나의 실외기에 복수개의 실내기가 연결되고, 상기 각 실내기에 실내팬이 각각 설치된 멀티 에어컨에 있어서, 상기 실내기의 운전 대수의 합이 작을수록 각 실내기의 풍량을 조절하는 실내팬의 풍량이 증가되도록 제어하는 것을 특징으로 하여 가능하게 된다.As described above, the present invention relates to a multi-air conditioner in which a plurality of indoor units are connected to one outdoor unit and each indoor fan is installed in each indoor unit, wherein the smaller the sum of the number of driving units of the indoor units, It is possible to control the air volume to increase.
Description
본 발명은 한 대의 실외기에 여러 대의 실내기가 연결된 멀티 에어컨의 냉방 운전 실내팬 제어방법에 관한 것으로서, 특히 적은 대수의 실내기만 운전될 경우 실내팬의 풍량을 증대시켜 실내기의 과냉시 발생될 수 있는 토출 온도 저하를 막고 실내기의 과냉시 발생될 수 있는 이슬맺힘을 방지할 수 있도록 하는 멀티 에어컨의 냉방 운전 실내팬 제어방법에 관한 것이다.The present invention relates to a cooling operation indoor fan control method of a multi-air conditioner in which a plurality of indoor units are connected to one outdoor unit, and in particular, when only a small number of indoor units are operated, an increase in the air volume of the indoor fan may result in discharge that may occur when the indoor unit is overcooled. The present invention relates to a method of controlling an indoor fan of a cooling operation of a multi-air conditioner to prevent a temperature drop and to prevent dew condensation that may occur when the indoor unit is overcooled.
통상적으로 분리형 에어컨은 실내기와 실외기로 구성되는 바, 실내기는 증발기를 통해 실내측의 열을 흡수하는 작용을 하고, 실외기는 실내에서 흡수한 열과 압축기가 냉매에 전달한 일만큼의 열을 합한 열을 응축기를 통해 실외로 방출하는 작용을 한다.In general, a separate air conditioner is composed of an indoor unit and an outdoor unit. The indoor unit absorbs heat from the indoor side through an evaporator, and the outdoor unit condensers heat that combines the heat absorbed from the indoor unit with the heat delivered to the refrigerant by the compressor. It acts to release through the outside.
도 1은 분리형 에어컨의 냉동 사이클이 도시된 구성도이다.1 is a configuration diagram showing a refrigeration cycle of a separate air conditioner.
도 1을 참조하면, 분리형 에어컨은 실내기(10)에 증발기(12) 및 실내팬(14)이 구비된 냉각 장치가 설치되고, 실외기(20)에는 압축기(22)와 응축기(24)가 구비된 방열 장치가 설치되어 있으며, 상기 실내기(10)와 실외기(20)는 상호 냉매 배관(30)으로 연결되어 있다.Referring to FIG. 1, a separate air conditioner includes a cooling device including an evaporator 12 and an indoor fan 14 installed in an indoor unit 10, and a compressor 22 and a condenser 24 provided in an outdoor unit 20. The heat dissipation device is installed, and the indoor unit 10 and the outdoor unit 20 are connected to each other by a refrigerant pipe 30.
이와 같은 분리형 에어컨은 실외기(20) 한 대에 실내기(10)가 한 대가 연결되어 있으므로 운전자의 리모컨 입력에 따라 정해진 풍량으로 실내 팬(14)을 제어하게 된다.In the separate air conditioner, since one indoor unit 10 is connected to one outdoor unit 20, the indoor fan 14 is controlled by a predetermined air volume according to the remote controller input of the driver.
상기 실내팬(14)은 통상적으로 220V AC전원으로 구동되는 바, 에어컨 제어부에서 위상 제어를 함으로써 실내팬의 강약을 조절할 수 있게 된다.The indoor fan 14 is typically driven by a 220V AC power, it is possible to adjust the strength of the indoor fan by controlling the phase in the air conditioner control unit.
즉, AC 220V 전원의 어느 정도 위상만큼 잘라내서 그 잘려진 위상만큼 220V 전원에 비해서 실내팬(14)의 풍량이 적어지는 것이다.In other words, the amount of air blown out by the indoor fan 14 is reduced by a certain phase of the AC 220V power supply, compared to the 220V power supply by the cut phase.
이와 같은 위상 제어는 시스템의 능력에 따라 풍량이 결정되고, 그에 맞게실내 팬(14)의 회전수(rpm)를 맞추게 되는데, 초기 제작시 회전수가 정해지면 도 2에서와 같이 그 값을 옵션 저항을 이용하여 위상 제어를 함으로써 고정하게 된다.In this phase control, the air volume is determined according to the capability of the system, and the rotation speed (rpm) of the indoor fan 14 is adjusted accordingly. When the rotation speed is determined during initial production, the value is set as shown in FIG. The phase control is used to fix the phase.
도 3은 멀티 인버터 히트 펌프 에어컨 시스템이 도시된 구성도이다.3 is a diagram illustrating a multi-inverter heat pump air conditioner system.
멀티 인버터 히트 펌프 에어컨 시스템은 냉방 장치로 사용할 수 있는 동시에 냉동 사이클의 냉매 흐름을 반대로 하여 난방 장치로도 사용할 수 있고, 실외기, 즉 실외 열교환기(41) 한 대에 각 실에 구비된 실내기 즉, 실내 열교환기(51a ~ 51e)가 여러 대 연결되어 구성된다.The multi-inverter heat pump air conditioning system can be used as a cooling device and at the same time can be used as a heating device by reversing the refrigerant flow of the refrigeration cycle, and an outdoor unit, that is, an indoor unit provided in each room in one outdoor heat exchanger (41), The indoor heat exchangers 51a to 51e are constituted by a plurality of connections.
미설명 부호 42는 실외팬, 43은 사방 밸브, 44는 압축기, 45는 오일 분리기, 46은 축압기 53a ~ 53e는 실내팬들, 61a ~ 61e는 팽창 밸브들이다.Reference numeral 42 is an outdoor fan, 43 is a four-way valve, 44 is a compressor, 45 is an oil separator, 46 accumulators 53a to 53e are indoor fans, 61a to 61e are expansion valves.
이와 같은 멀티 인버터 히트 펌프 에어컨은 인버터를 이용하여 실내기(41)의 운전 대수에 따라 압축기(44)의 능력을 가변시켜 냉방 운전을 실시하게 된다.Such a multi-inverter heat pump air conditioner performs cooling operation by varying the capacity of the compressor 44 according to the number of operations of the indoor unit 41 using an inverter.
그러나, 각 실 중 1 또는 2개의 실내기만 운전할 경우 멀티 인버터 히트 펌프 에어컨의 압축기(44)를 최저 운전 주파수인 30Hz로 운전하더라도 운전하는 실내 열교환기(51)로 냉매가 집중되어 실내기의 토출 온도가 정상적인 수준보다도 더 낮아지는 문제점이 있다.However, when only one or two indoor units are operated in each room, even though the compressor 44 of the multi-inverter heat pump air conditioner is operated at the minimum operating frequency of 30 Hz, the refrigerant is concentrated in the indoor heat exchanger 51 to operate, so that the discharge temperature of the indoor unit is increased. There is a problem that is lower than the normal level.
또한, 상기와 같이 실내기의 토출 온도가 낮아짐에 따라 운전중인 실내 열교환기(41)에 이슬 맺힘 현상이 발생하고, 실내팬(53)의 작동으로 인하여 물방울이 실내로 튀어나오게 되어 주변 환경을 저해하는 등 사용자에게 상당한 불편을 초래하게 되는 문제점이 있다.In addition, as the discharge temperature of the indoor unit decreases as described above, dew condensation occurs in the indoor heat exchanger 41 in operation, and water droplets splash out into the room due to the operation of the indoor fan 53 to hinder the surrounding environment. Etc. There is a problem that causes significant inconvenience to the user.
본 발명은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 실내기의 이슬 맺힘 현상을 줄일 수 있도록 하는 멀티 에어컨의 냉방 운전 실내팬 제어방법을 제공하는 데 있다.The present invention has been made to solve the above problems, to provide a cooling operation indoor fan control method of the multi-air conditioner to reduce the dew condensation of the indoor unit.
도 1은 분리형 에어컨의 냉동 사이클이 도시된 구성도이다.1 is a configuration diagram showing a refrigeration cycle of a separate air conditioner.
도 2는 분리형 에어컨 실내기의 실내팬 구동을 위한 위상 제어 파형도,2 is a phase control waveform diagram for driving an indoor fan of a separate air conditioner indoor unit;
도 3은 멀티 인버터 히트 펌프 에어컨 시스템이 도시된 구성도,3 is a block diagram showing a multi-inverter heat pump air conditioning system,
도 4는 본 발명에 따른 멀티 에어컨의 실내팬 제어방법이 도시된 그래프이다.4 is a graph illustrating a method for controlling an indoor fan of a multi air conditioner according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
41 : 실외 열교환기 43 : 사방 밸브,41: outdoor heat exchanger 43: four-way valve,
44 : 압축기 51a ~ 51b : 실내 열교환기44 compressor 51a ~ 51b: indoor heat exchanger
53a ~ 53b : 실내 팬, 61a ~ 61b : 팽창 밸브53a ~ 53b: indoor fan, 61a ~ 61b: expansion valve
상기한 과제를 실현하기 위한 본 발명에 따른 멀티 에어컨의 냉방 운전 실내팬 제어방법은, 하나의 실외기에 복수개의 실내기가 연결되어 상기 실외기 및 실내기 각각의 냉방운전을 제어하는 멀티 에어컨의 냉방운전방법에 있어서,상기 각각의 실내기의 풍량을 조절하는 실내팬은 풍량이 각각 다른 복수개의 풍량의 단계 중 사용자가 선택한 소정의 풍량의 단계로 설정되어 상기 실내기가 운전되고, 운전되고 있는 상기 실내기의 대수가 작아지면 운전되고 있는 각각의 실내기의 실내팬에 설정된 상기 풍량의 단계에 해당되는 풍량보다 풍량이 증대되도록 제어되어 운전되는 것을 특징으로 한다.The indoor fan control method of the cooling operation of the multi-air conditioner according to the present invention for realizing the above object is a cooling operation method of the multi-air conditioner for controlling the cooling operation of each of the outdoor unit and the indoor unit is connected to a plurality of indoor units in one outdoor unit. The indoor fan controlling the air volume of each indoor unit is set to a predetermined airflow stage selected by a user from among a plurality of airflow stages with different airflows, so that the indoor unit is operated and the number of indoor units being operated is small. The air volume is controlled to operate so as to increase the air volume than the air volume corresponding to the step of the air volume set in the indoor fan of each indoor unit that is being operated on the ground.
이하, 첨부된 도면을 참조하여 본 발명의 실시 예를 설명하면 다음과 같다.Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.
도 4는 본 발명에 따른 멀티 에어컨의 실내팬 제어방법이 도시된 그래프이다.4 is a graph illustrating a method for controlling an indoor fan of a multi air conditioner according to the present invention.
멀티 인버터 히트 펌프 에어컨은 도 3을 참조하면, 냉동 사이클의 냉매 흐름을 제어하여 냉방 및 난방 장치로 모두 사용할 수 있고, 특히 한 대의 실외기에 여러 대의 실내기가 연결되어 구성된다.Referring to FIG. 3, the multi-inverter heat pump air conditioner can be used as both cooling and heating devices by controlling a refrigerant flow of a refrigeration cycle. In particular, a plurality of indoor units are connected to one outdoor unit.
상기 실외기에는 실외 열교환기(41), 실외팬(42), 사방 밸브(43), 압축기(44), 오일 분리기(45), 축압기(46)가 구비되고, 상기 각 실내기에는 실내 열교환기(51a ~ 51e), 실내팬(53a ~ 53e), 팽창 밸브(61a ~ 61e)가 각각 구비된다.The outdoor unit includes an outdoor heat exchanger 41, an outdoor fan 42, a four-way valve 43, a compressor 44, an oil separator 45, and an accumulator 46, and each indoor unit includes an indoor heat exchanger ( 51a to 51e, indoor fans 53a to 53e, and expansion valves 61a to 61e, respectively.
이와 같은 멀티 인버터 히트 펌프 에어컨은 인버터를 이용하여 실내기의 운전 대수에 따라 압축기(44)의 능력을 가변시켜 냉방 운전을 실시하게 된다.Such a multi-inverter heat pump air conditioner uses the inverter to perform cooling operation by varying the capacity of the compressor 44 according to the number of operation of the indoor unit.
특히 본 발명에서는 상기 실내기의 운전 대수(n)의 합이 작을수록 운전중인 각 실내기의 풍량을 조절하는 실내팬(53a ~ 53e)의 풍량(Q)이 증가되도록 제어한다.Particularly, in the present invention, as the sum of the number of driving units n of the indoor unit is smaller, the air volume Q of the indoor fans 53a to 53e for controlling the air volume of each indoor unit in operation is increased.
그리고 상기 실내팬(53a ~ 53e)은 사용자가 선택할 수 있도록 복수의 풍량 단계, 즉, 약풍, 중풍, 강풍으로 설정되어 작동되고, 실내기의 운전 대수의 합이 작아지면 각각의 풍량 단계에서 일정 비율로 풍량이 각각 증가되도록 제어한다.In addition, the indoor fans 53a to 53e are operated by being set to a plurality of air volume stages, that is, a weak wind, a middle wind, and a strong wind, so that the user can select them. Control the air volume to increase respectively.
즉, 도 4를 참조하여 설명하면, 실내기의 대수가 15 이상일 때, 15 이상의 실내기가 운전되면, 사용자가 선택하는 실내팬(53a ~ 53e)의 풍량 단계 약풍, 중풍, 강풍은 각각 Q1, Q2, Q3 의 풍량으로 정상적으로 제어한다.That is, referring to FIG. 4, when the number of indoor units is 15 or more, when 15 or more indoor units are operated, the air volume, low wind, middle wind, and strong wind of the indoor fans 53a to 53e selected by the user are Q1, Q2, Normally controlled by Q3 air volume.
하지만, 실내기의 운전 대수가 10 ~ 15 대 사이가 되면 사용자가 선택하는 약풍, 중풍, 강풍은 각각 Q1, Q2, Q3 보다 일정 비율 높은 풍량을 내도록 실내팬(53a ~ 53e)을 제어한다.However, when the number of driving units of the indoor unit is between 10 to 15 units, the indoor winds 53a to 53e are controlled to produce a certain amount of air volume higher than Q1, Q2, and Q3 by the user to select the low wind, the middle wind, and the high wind.
그리고, 실내기(51)의 운전 대수가 5 ~ 10 대 사이가 되면 사용자가 선택하는 약풍, 중풍, 강풍은 각각 Q2, Q3, Q4 의 풍량을 내도록 실내팬(53a ~ 53e)을 제어한다.When the number of driving units of the indoor unit 51 is between 5 and 10 units, the indoor fan 53a to 53e controls the weak wind, the middle wind, and the strong wind selected by the user to produce the air volumes of Q2, Q3, and Q4, respectively.
이와 같이 실내기의 운전 대수에 따라 실내팬(53a ~ 53e)의 풍량을 제어하게 되면 운전중인 실내기의 실내열교환기(51a ~ 51e)가 열교환이 촉진되어 운전중인 실내기를 통과하는 냉매의 과냉을 막고, 그로 인해 실내기의 토출 온도가 과냉시보다 높게 되며, 운전중인 실내기의 과냉시 발생될 수 있는 실내기에 이슬이 맺히는 현상을 방지할 수 있고, 결국 보다 쾌적한 냉방 환경을 실현할 수 있게 된다.As such, if the air volume of the indoor fans 53a to 53e is controlled according to the number of indoor units, the indoor heat exchangers 51a to 51e of the indoor unit are operated to prevent heat from cooling the refrigerant passing through the indoor unit. As a result, the discharge temperature of the indoor unit is higher than that of the supercooling, and dew condensation can be prevented from occurring in the indoor unit, which may occur during the supercooling of the indoor unit in operation, thereby realizing a more comfortable cooling environment.
상기한 바와 같은 본 발명의 멀티 에어컨의 냉방운전 실내팬 제어방법은 실내기의 운전 대수가 낮을수록 실내팬의 풍량을 증대시키도록 제어하기 때문에 냉방 운전시 실내기의 토출 온도가 필요 이상으로 저하되는 것을 방지하는 동시에 실내기의 이슬 맺힘 현상을 줄여 보다 쾌적한 공조 환경을 실현할 수 있는 이점이 있다.The indoor fan control method of the air conditioner of the multi-air conditioner according to the present invention as described above controls the air volume of the indoor fan to increase as the number of indoor units is lowered, thereby preventing the discharge temperature of the indoor unit from being lowered more than necessary during the cooling operation. At the same time, the dew condensation of the indoor unit can be reduced to provide a more comfortable air conditioning environment.
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| KR100748525B1 (en) * | 2005-07-12 | 2007-08-13 | 엘지전자 주식회사 | Multi air conditioner heating and cooling simultaneously and indoor fan control method thereof |
| CN104913445B (en) * | 2015-05-29 | 2017-08-04 | 广东美的制冷设备有限公司 | Control method, the control system of blower fan gear and the air conditioner of blower fan gear |
| CN105588286B (en) * | 2016-02-16 | 2019-02-22 | 珠海格力电器股份有限公司 | The control method and device of multi-connected machine |
| CN109855245B (en) * | 2019-02-13 | 2021-09-21 | 青岛海尔空调电子有限公司 | Multi-split air conditioning system and heat exchange amount calculation method thereof |
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| JPH01194384A (en) * | 1988-01-28 | 1989-08-04 | Hitachi Chem Co Ltd | Manufacture of copper-clad laminated plate |
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| JPH10281578A (en) * | 1997-04-02 | 1998-10-23 | Mitsubishi Heavy Ind Ltd | Multizone type air conditioner |
| KR19990026262A (en) * | 1997-09-23 | 1999-04-15 | 윤종용 | Operation control device of air conditioner and its operation control method |
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| JPS59229124A (en) * | 1984-05-18 | 1984-12-22 | Matsushita Refrig Co | Air conditioner for plurality of rooms |
| JPS63176948A (en) * | 1987-01-16 | 1988-07-21 | Hitachi Ltd | Multi-room type air conditioner |
| JPH01194384A (en) * | 1988-01-28 | 1989-08-04 | Hitachi Chem Co Ltd | Manufacture of copper-clad laminated plate |
| JPH04366345A (en) * | 1991-06-12 | 1992-12-18 | Hitachi Ltd | Multi type air conditioner |
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