JP3301823B2 - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JP3301823B2 JP3301823B2 JP17797193A JP17797193A JP3301823B2 JP 3301823 B2 JP3301823 B2 JP 3301823B2 JP 17797193 A JP17797193 A JP 17797193A JP 17797193 A JP17797193 A JP 17797193A JP 3301823 B2 JP3301823 B2 JP 3301823B2
- Authority
- JP
- Japan
- Prior art keywords
- indoor
- compressor
- capacity
- outdoor
- unit
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
- F25B2313/02531—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
- F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、室外ユニットに能力可
変型の圧縮機と室外熱交換器とを内蔵させ、室内ユニッ
トに室内熱交換器を内蔵させ、両ユニットをユニット間
配管でつないだ空気調和装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor unit having a variable capacity compressor and an outdoor heat exchanger built therein, an indoor unit having an indoor heat exchanger built therein, and both units being connected by piping between the units. It relates to an air conditioner.
【０００２】[0002]
【従来の技術】特公平５−３４５８２号公報で示された
ような能力可変型の圧縮機を備えた空気調和装置におい
て、この装置の運転に当って、室内ユニットが設置され
た室内の温度が設定値に近づくと、圧縮機の能力を下降
させ、更に室内の温度が設定値になると（サーモオフ状
態）、この圧縮機の運転を停止するようにしていた。2. Description of the Related Art In an air conditioner equipped with a variable capacity compressor as disclosed in Japanese Patent Publication No. 5-34582, the temperature of a room in which an indoor unit is installed is reduced during the operation of the device. When approaching the set value, the capacity of the compressor is reduced, and when the indoor temperature reaches the set value (thermo-off state), the operation of the compressor is stopped.
【０００３】[0003]
【発明が解決しようとする課題】このような制御が行な
われる空気調和装置においては次のような課題がある。
例えば、室内の温度が設定値に近い（暖房負荷が小さ
い）場合に、暖房運転を開始すると、概ね圧縮機の能力
は低く抑えられる。このため、暖房運転開始時に速やか
に室内の温度が設定値に到達せず、暖房運転開始時の立
ち上りが遅いことが考えられる。The air conditioner in which such control is performed has the following problems.
For example, when the indoor temperature is close to the set value (the heating load is small), when the heating operation is started, the capacity of the compressor is generally suppressed to a low level. For this reason, it is conceivable that the indoor temperature does not reach the set value promptly at the start of the heating operation, and the rise at the start of the heating operation is slow.
【０００４】又、外気温が比較的低い状態で、暖房運転
を開始すると、ユニット間配管における放熱量が増加
し、上述と同様に暖房運転開始時の立ち上りが遅くな
る。本発明の目的は、例えば暖房等の運転開始時の立ち
上りを速くすることである。[0004] When the heating operation is started in a state where the outside air temperature is relatively low, the amount of heat radiation in the piping between the units increases, and the rise at the start of the heating operation is delayed as described above. An object of the present invention is to speed up the startup at the start of operation such as heating.
【０００５】[0005]
【課題を解決するための手段】この目的を達成するため
に、本発明は室外ユニットに能力可変型の圧縮機と室外
熱交換器とを内蔵させ、室内ユニットに室内熱交換器を
内蔵させ、且つこの室内ユニットを複数台備え、これら
の室内外両ユニットをユニット間配管でつないだ空気調
和装置において、暖房運転を行う場合は、暖房運転され
る室内ユニットの室内温度が設定値に達するまでは、こ
の暖房運転される室内ユニットの合計の能力と略同一の
ベース能力と、前記暖房運転開始時の室内ユニットの夫
々の室内熱交換器温度において一番高い温度に基づいて
設定された追加能力との合計値で前記能力可変型の圧縮
機を運転させるようにしたものである。In order to achieve this object, the present invention provides an outdoor unit having a variable capacity compressor and an outdoor heat exchanger built therein, and an indoor unit having an indoor heat exchanger built therein. In a case where an air conditioner is provided with a plurality of the indoor units and the indoor and outdoor units are connected to each other by a unit-to-unit pipe, and the heating operation is performed, the heating operation is performed until the indoor temperature of the indoor unit reaches the set value. A base capacity substantially the same as the total capacity of the indoor units to be heated, and an additional capacity set based on the highest temperature among the indoor heat exchanger temperatures of the indoor units at the start of the heating operation. The variable capacity type compressor is operated with the total value of the above.
【０００６】[0006]
【作用】室内の温度が設定値に達するまでは、室外ユニ
ット内の能力可変型の圧縮機は、この室内に設置された
室内ユニットの能力と略同一のベース能力とこの室内ユ
ニット内の熱交換器の温度に基づいて設定された追加能
力との合計値で運転され、運転開始時の立ち上りを良く
している。Until the temperature inside the room reaches the set value, the variable capacity type compressor inside the outdoor unit has the same base capacity as the capacity of the indoor unit installed in this room and the heat exchange inside this indoor unit. It is operated with the total value of the additional capacity set based on the temperature of the vessel, and the startup at the start of operation is improved.
【０００７】[0007]
【実施例】以下、本発明の実施例を図面を参照して説明
する。図１において、１はマルチ型の空気調和装置で、
複数の室外ユニット１1，１2と、複数の室内ユニット２
1，２2(n)とこれらのユニットを並列につなぐユニット
間配管３とから構成されている。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a multi-type air conditioner,
A plurality of outdoor units 1 1 and 1 2 and a plurality of indoor units 2
1 , 2 2 (n) and unit-to-unit piping 3 for connecting these units in parallel.
【０００８】第１の室外ユニット１1は、アキュームレ
ータ４1と、能力一定圧縮機Ａ、及び室内の空調負荷に
応じて能力を可変に制御できる能力可変圧縮機Ｂと、油
分離器５1と、四方弁６1と、室外熱交換器７1と、室外
電動式膨脹弁（室外側の減圧弁）８1とで構成される。
また、第２の室外ユニット１2は、アキュームレータ４2
と、能力一定圧縮機Ｃと、油分離器５2と、四方弁６
2と、室外熱交換器７2と、室外電動式膨脹弁（室外側の
減圧弁）８2とで構成される。[0008] The first outdoor unit 1 1, the accumulator 4 1, and the variable capacity compressor B that can variably control the capacity according to the capability constant compressor A, and the indoor air-conditioning load, the oil separator 5 1 , and a four-way valve 61, an outdoor heat exchanger 7 1, the outdoor electric expansion valve (the outdoor side decompression valve) 8 1.
The second outdoor unit 1 2, the accumulator 4 2
When the capacity constant compressor and C, and the oil separator 5 2, four-way valve 6
Composed of the 2, an outdoor heat exchanger 7 2, the outdoor electric expansion valve (the outdoor side decompression valve) 8 2.
【０００９】室内ユニット２1，２2は、室内熱交換器９
1，９2と、室内電動式膨脹弁（室内側の減圧弁）１
０1，１０2とで構成される。この室内ユニット２1，２2
からは、ガス管１１及び液管１２からなるユニット間配
管３が延び出し、このユニット間配管３には、上述した
とおりこれらの室外ユニット１1，１2が並列に接続され
る。The indoor units 2 1 and 2 2 include an indoor heat exchanger 9
1 , 9 2 and indoor expansion valve (pressure reducing valve on the indoor side) 1
0 1 and 10 2 . The indoor unit 2 1, 2 2
From the inter-unit consists of a gas pipe 11 and liquid pipe 12 pipe 3 is extended out, this unit pipes 3, these outdoor unit 1 1 as described above, 1 2 are connected in parallel.
【００１０】第１の室外ユニット１1の油分離器５1は、
圧縮機Ａ，Ｂから吐出される冷媒中の潤滑油を分離する
ものであり、ここで分離された潤滑油は戻し管１３1を
通じて圧縮機Ａ，Ｂに戻される。戻し管１３1には開閉
弁１４1が設けられる。また、室外ユニット１2の油分離
器５2は、圧縮機Ｃから吐出される冷媒中の潤滑油を分
離するものであり、ここで分離された潤滑油は戻し管１
３2を通じて圧縮機Ｃに戻される。戻し管１３2には開閉
弁１４2が設けられる。[0010] Oil separator 5 1 of the first outdoor unit 1 1,
Compressor A, is intended to separate the lubricating oil in the refrigerant discharged from B, where separated lubricating oil compressor A, through return pipe 13 1 and returned to the B. Closing valve 14 1 is provided in the return pipe 13 1. Moreover, the oil separator 5 2 of the outdoor unit 1 2 is intended to separate the lubricating oil in the refrigerant discharged from the compressor C, where the return separated lubricating oil tube 1
It is returned to the compressor C through 3 2. Closing valve 14 2 is provided in the return pipe 13 2.
【００１１】第１並びに第２の室外ユニット１1，１2の
戻し管１３1，１３2どうしは、バランス管１５により接
続される。このバランス管１５は、第１並びに第２の室
外ユニット１1，１2の圧縮機間に潤滑油量のアンバラン
スが生じた時、潤滑油量の多い圧縮機から少ない圧縮機
に潤滑油を導くための管路である。１６1，１６2は室内
ユニット２1，２2が配置された室内の温度（室内ユニッ
ト２1，２2に吸込まれる空気温度）を検出する第１セン
サ、１７1，１７2は室内熱交換器９1，９2の温度を検出
する第２センサで、両センサからの信号が制御器１８に
入力されて運転開始時の室外ユニット１1，１2（圧縮機
Ａ，Ｂ，Ｃ）の運転を制御するものである。The return pipes 13 1 , 13 2 of the first and second outdoor units 1 1 , 12 are connected by a balance pipe 15. The balance pipe 15, when the imbalance of the amount of lubricating oil generated between the first and second outdoor units 1 1, 1 2 of the compressor, the lubricating oil in the small compressor from the lubricating oil a large amount of the compressor It is a conduit for guiding. 16 1, 16 2 first sensor for detecting the indoor unit 2 1, 2 2 placed room temperature (indoor unit 2 1, 2 2 to the air temperature sucked), 17 1, 17 2 indoor heat in a second sensor for detecting the temperature of the exchanger 9 1, 9 2, both signal from the sensor is input to the controller 18 the outdoor unit at the start of operation 1 1, 1 2 (compressor a, B, C) It controls the operation of.
【００１２】圧縮機Ａ，Ｂ，Ｃは、図２に示すように、
圧縮機Ａが４馬力（ｐｓ）の能力一定定格圧縮機であ
り、圧縮機Ｂが空調負荷に応じて能力（回転数）を可変
に制御できる６ｐｓの能力可変インバ−タ圧縮機であ
り、圧縮機Ｃが１０ｐｓの能力一定定格圧縮機である。
従って、第１の室外ユニット１1は１０馬力の能力可変
型の室外ユニットとなり、第２の室外ユニット１2は１
０馬力の能力一定型（定格）の室外ユニットとなる。The compressors A, B and C are, as shown in FIG.
The compressor A is a 4 horsepower (ps) constant capacity rated compressor, and the compressor B is a 6 ps variable capacity inverter compressor capable of variably controlling the capacity (rotational speed) according to the air conditioning load. Machine C is a 10 ps constant capacity rated compressor.
Therefore, the first outdoor unit 1 1 comprises a 10 horsepower variable capacity type of the outdoor unit, the second outdoor unit 1 2 1
This is an outdoor unit of constant power (rated) with zero horsepower.
【００１３】一方、室内ユニット２1，２2は図１では２
つしか示されていないものの、実際は多数の室内ユニッ
トが設けられている。そしてこれらの室内ユニットの馬
力の合計が２０馬力となるようにしている。尚、説明の
ため、室内ユニット２1は５馬力、室内ユニット２2は４
馬力、図示しない室内ユニットの合計馬力は１１馬力で
ある。On the other hand, the indoor units 2 1 and 2 2 are 2 in FIG.
Although only one is shown, a number of indoor units are actually provided. The total horsepower of these indoor units is set to 20 horsepower. Since the description, the indoor unit 2 1 5 horsepower, the indoor unit 2 2 4
The total horsepower of the indoor units (not shown) is 11 horsepower.
【００１４】この空気調和装置において、暖房運転時は
四方弁６1，６2（図１参照）を実線状態に設定して圧縮
機Ａ，Ｂ，Ｃから吐出された冷媒を実線矢印のように流
す。又、冷房運転時は四方弁６1，６2を破線状態に設定
して、圧縮機Ａ，Ｂ，Ｃから吐出された冷媒を実線矢印
と反対方向へ流す。ここで、室外ユニット１1，１2の合
計出力を１〜６ｐｓの範囲で制御するには、図２を参照
して、第１の室外ユニット１1の能力可変圧縮機Ｂを運
転して、その可変範囲内で制御する。又、合計出力を７
〜１０ｐｓの範囲で制御するには、第１の室外ユニット
１1の能力一定圧縮機Ａ（４ｐｓ）を運転しっ放しにし
て、残りの３〜６ｐｓを能力可変圧縮機Ｂの運転により
制御する。また、合計出力を１１〜１６ｐｓの範囲で制
御するには、第２の室外ユニット１2の能力一定圧縮機
Ｃ（１０ｐｓ）を運転しっ放しにして、残りの１〜６ｐ
ｓを第１の室外ユニット１1の能力可変圧縮機Ｂの運転
により制御する。In this air conditioner, during the heating operation, the four-way valves 6 1 and 6 2 (see FIG. 1) are set to a solid line state, and the refrigerant discharged from the compressors A, B and C is indicated by a solid line arrow. Shed. Moreover, during the cooling operation by setting the four-way valve 6 1, 6 2 in broken line state, flow compressor A, B, the refrigerant discharged from C and solid arrow in the opposite direction. Here, the total output of the outdoor unit 1 1, 1 2 to control in a range of 1~6ps, referring to FIG. 2, by operating the first outdoor unit 1 1 of the variable capacity compressor B, Control is performed within the variable range. Also, the total output is 7
In order to control in the range of 10 to 10 ps, the constant capacity compressor A (4 ps) of the first outdoor unit 11 is kept running, and the remaining 3 to 6 ps is controlled by the operation of the variable capacity compressor B. . Further, in order to control the total output in the range of 11~16ps it is to the second outdoor unit 1 2 capacity constant compressor C of (10 ps) to leave driving the remaining 1~6p
s to control the operation of the first outdoor unit 1 1 of the variable capacity compressor B.
【００１５】更に、合計出力を１７〜２０ｐｓの範囲で
制御するには、第２の室外ユニット１2の能力一定圧縮
機Ｃ（１０ｐｓ）、及び第１の室外ユニット１1の能力
一定圧縮機Ａ（４ｐｓ）を運転しっ放しにして、残りの
３〜６ｐｓを第１の室外ユニット１1の能力可変圧縮機
Ｂの運転により制御する。これによれば、定格負荷に至
るまでの全範囲の出力をなめらかに制御することができ
る。Furthermore, to control the total output in the range of 17~20ps the second outdoor unit 1 2 ability constant compressor C (10 ps), and the first outdoor unit 1 1 capacity constant compressor A in the leave drove (4 ps), and controls the remaining 3~6ps by the operation of the first outdoor unit 1 1 of the variable capacity compressor B. According to this, the output in the entire range up to the rated load can be smoothly controlled.
【００１６】ところで、暖房運転を開始する場合には、
まず次に述べるような本発明の特有な制御が行なわれ
る。その制御は図１、図３を参照して、まず、暖房運転
が開始されると（Ｓ1）、各室内ユニット２1，２2は夫
々の第１センサ１６1，１６2で室内温度を検出する（Ｓ
2）。そして、夫々の検出値が夫々の室内温度の設定値
に達していない、すなわち、サーモオン状態の室内ユニ
ット２1，２2が１台でもあるか否かを判断する
（Ｓ3）。ここで、サーモオン状態の室内ユニットがな
い場合は第１ステップＳ1に戻る。By the way, when starting the heating operation,
First, the following unique control of the present invention is performed. Its control 1, with reference to FIG. 3, first, when the heating operation is started (S 1), each indoor unit 2 1, 2 2 the first sensor 16 of the respective 1, 16 2 at room temperature Detect (S
2 ). Then, the detection value of each has not reached the set value of the room temperature respectively, i.e., the indoor unit 2 1 of thermo conditions, 2 2 determines whether there is even one (S 3). Here, if there is no indoor unit of thermo state returns to the first step S 1.
【００１７】サーモオン状態の室内ユニットが１台でも
ある場合は、第４ステップＳ4で各サーモオン状態の各
室内ユニットの能力合計値を計算し、その値をベース馬
力と設定する。具体例を示せば、５馬力の第１の室内ユ
ニット２1のみサーモオンであれば５馬力がベース馬力
となり、この５馬力の第１の室内ユニット２1と、４馬
力の第２室内ユニット２2とのいずれもがサーモオン状
態であれは９馬力（５馬力＋４馬力）がベース馬力とな
る。[0017] If the indoor unit of the thermo state is even one, the fourth step S 4 to calculate the total capacity value of the indoor unit in the thermo-on state, the value is set based horsepower. If Shimese specific examples, it is 5 horsepower base horsepower if the first indoor unit 2 1 only thermo of 5 horsepower, the first indoor unit 2 1 of this 5 horsepower, 4 second indoor unit of horsepower 2 2 If both are in the thermo-on state, 9 horsepower (5 horsepower + 4 horsepower) is the base horsepower.
【００１８】一方、第５ステップＳ5では、各サーモオ
ン状態の室内ユニット２1，２2において、第２センサ１
７1，１７2で各室内熱交換器９1，９2の温度（Ｔ1〜
Ｔn）を検出する。そして、これらの検出値のうち一番
高い値ＴCを求める（Ｓ6）。そしてこのＴCに基づいた
追加馬力を図３から求める（Ｓ7）。そして、この追加
馬力と前述のベース馬力との和を計算し、この値を運転
馬力とする（Ｓ8）。その後、この運転馬力に基づいて
圧縮機Ａ，Ｂ，Ｃ（室外ユニット１1，１2）の運転を行
なう（Ｓ9）。更に、ステップＳ10では再度室内熱交換
器９1，９2の温度を第２センサ１７1，１７2で検出し
て、その値に応じて図５で示すような圧縮機の運転制御
を行なって、いずれの室内熱交換器９1，９2の温度も５
３℃〜５６℃となるように制御する（Ｓ10〜Ｓ11）。Meanwhile, in a fifth step S 5, in the indoor unit 2 1, 2 2 of the thermo-on state, the second sensor 1
7 1, 17 2 in the indoor heat exchanger 9 1, 9 2 temperature (T 1 ~
T n ). Then, of these detected values determine the highest value T C (S 6). The Request more horsepower based on the T C of FIG. 3 (S 7). Then, the sum of this additional horsepower and above the base horsepower is calculated, and this value and the operating horsepower (S 8). Thereafter, the compressor A on the basis of the operating horsepower, B, the operation of C (the outdoor unit 1 1, 1 2) is performed (S 9). Further, the step S 10 in again the indoor heat exchanger 9 1, 9 2 temperature detected by the second sensor 17 1, 17 2, subjected to operation control of the compressor as shown in Figure 5 according to the value Therefore, the temperature of each of the indoor heat exchangers 9 1 and 9 2 is 5
3 ° C. ~ 56 controlled to be ℃ (S 10 ~S 11).
【００１９】このように暖房運転開始時は、サーモオン
状態の室内ユニット２1，２2の合計馬力をベース馬力と
すると共に、このベース馬力に室内熱交換器９1，９2の
温度に基づい設定された馬力を追加馬力として加え、そ
の合計馬力によって圧縮機Ａ，Ｂ，Ｃの運転馬力を定め
たから、運転開始時にサーモオン中の室内ユニット
２ 1，２2の熱交換器９1，９2はすみやかに５３℃〜５６
℃という高温に到達することができる。従って、この運
転開始時に、外気温が低くても室内はすみやかに暖かく
することができる。As described above, when the heating operation is started, the thermo-on is started.
Indoor unit 2 in state1, 2TwoTotal horsepower to base horsepower
In addition to this base horsepower, indoor heat exchanger 91, 9Twoof
The horsepower set based on the temperature is added as additional horsepower, and
Determines the operating horsepower of compressors A, B, and C based on the total horsepower of
Therefore, indoor units that are on at the start of operation
2 1, 2TwoHeat exchanger 91, 9Two53 ℃ ～ 56
High temperatures of up to ° C can be reached. Therefore, this luck
At the start of the trip, the room is warm immediately, even if the outside temperature is low
can do.
【００２０】尚、上述した説明は暖房運転開始時の制御
であったが、冷房運転開始時も同様な制御を行なうこと
によって、冷房運転開始時の立ち上り特性を良くできる
ことは言うまでもない。このような制御が行なえるの
は、「室内ユニットの能力＜室外ユニットの能力」とい
う状態が発生するために行なえるものであり、この状態
が発生するのは、複数の室内ユニット２1，２2と複数の
室外ユニット１1，１2とが並列につながれた空気調和装
置１であるためとも言える。しかしながら「室内ユニッ
トの能力＜室外ユニットの能力」という１：１の空気調
和装置においても適応できる。Although the above description has been made on the control at the start of the heating operation, it is needless to say that the start-up characteristic at the start of the cooling operation can be improved by performing the same control at the start of the cooling operation. Such control can be performed because of the occurrence of a state “capacity of indoor unit <capability of outdoor unit”. This state occurs only when a plurality of indoor units 2 1 and 2 are present. 2 and a plurality of outdoor units 1 1, 1 2 and is true because an air conditioner 1 which is connected in parallel. However, the present invention can also be applied to a 1: 1 air conditioner in which "the capacity of the indoor unit <the capacity of the outdoor unit".
【００２１】[0021]
【発明の効果】以上述べたように、本発明は、室外ユニ
ットに能力可変型の圧縮機と室外熱交換器とを内蔵さ
せ、室内ユニットに室内熱交換器を内蔵させ、且つこの
室内ユニットを複数台備え、これらの室内外両ユニット
をユニット間配管でつないだ空気調和装置において、暖
房運転を行う場合は、暖房運転される室内ユニットの室
内温度が設定値に達するまでは、この暖房運転される室
内ユニットの合計の能力と略同一のベース能力と、前記
暖房運転開始時の室内ユニットの夫々の室内熱交換器温
度において一番高い温度に基づいて設定された追加能力
との合計値で前記能力可変型の圧縮機を運転させるよう
にしたので、運転開始時の立ち上りを良好にすることが
できる。As described above, according to the present invention, the outdoor unit incorporates the variable capacity compressor and the outdoor heat exchanger, and the indoor unit incorporates the indoor heat exchanger. When performing a heating operation in an air conditioner in which a plurality of units are provided and these indoor and outdoor units are connected by inter-unit piping, the heating operation is performed until the indoor temperature of the indoor unit to be heated reaches a set value. The total capacity of the base capacity substantially equal to the total capacity of the indoor units and the additional capacity set based on the highest temperature among the indoor heat exchanger temperatures of the indoor units at the start of the heating operation. Since the variable capacity compressor is operated, the start-up at the start of operation can be improved.
【図１】本発明の空気調和装置の冷媒回路図である。FIG. 1 is a refrigerant circuit diagram of an air conditioner of the present invention.
【図２】図１に示した圧縮機の運転状態を示す説明図で
ある。FIG. 2 is an explanatory diagram showing an operation state of the compressor shown in FIG.
【図３】図１に示した空気調和装置の暖房運転開始時の
制御を示すフローチャートである。FIG. 3 is a flowchart illustrating control when a heating operation of the air-conditioning apparatus illustrated in FIG. 1 is started.
【図４】図１に示した圧縮機の追加馬力を示す説明図で
ある。FIG. 4 is an explanatory diagram showing additional horsepower of the compressor shown in FIG.
【図５】図１に示した圧縮機の制御内容を示す説明図で
ある。FIG. 5 is an explanatory diagram showing control contents of the compressor shown in FIG.
１ 空気調和装置 １1，１2 室外ユニット ２1，２2 室内ユニット ３ ユニット間配管 ７1，７2 室外熱交換器 ９1，９2 室内熱交換器 １８ 制御器 Ｂ 能力可変型（インバータ）の圧縮機1 air conditioner 1 1, 1 2 the outdoor unit 2 1, 2 2 indoor unit 3 unit pipes 71, 7 second outdoor heat exchanger 9 1, 9 2 indoor heat exchanger 18 controller B variable capacity type (inverter) Compressor
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−172587（ＪＰ，Ａ) 特開 昭61−19997（ＪＰ，Ａ) 特開 平２−230063（ＪＰ，Ａ) 特開 平５−10570（ＪＰ，Ａ) 特開 平３−117846（ＪＰ，Ａ) 特開 平２−126055（ＪＰ，Ａ) 特開 昭62−119349（ＪＰ，Ａ) 特開 平５−34582（ＪＰ，Ａ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-172587 (JP, A) JP-A-61-19977 (JP, A) JP-A-2-230063 (JP, A) JP-A-5-1995 10570 (JP, A) JP-A-3-117846 (JP, A) JP-A-2-12655 (JP, A) JP-A-62-119349 (JP, A) JP-A-5-34582 (JP, A)
Claims (1)
熱交換器とを内蔵させ、室内ユニットに室内熱交換器を
内蔵させ、且つこの室内ユニットを複数台備え、これら
の室内外両ユニットをユニット間配管でつないだ空気調
和装置において、暖房運転を行う場合は、暖房運転され
る室内ユニットの室内温度が設定値に達するまでは、こ
の暖房運転される室内ユニットの合計の能力と略同一の
ベース能力と、前記暖房運転開始時の室内ユニットの夫
々の室内熱交換器温度において一番高い温度に基づいて
設定された追加能力との合計値で前記能力可変型の圧縮
機を運転させる制御器を備えたことを特徴とする空気調
和装置。An outdoor unit includes a variable capacity compressor and an outdoor heat exchanger, an indoor unit includes an indoor heat exchanger, and a plurality of indoor units are provided.
When performing heating operation in an air conditioner in which both indoor and outdoor units are connected by piping between the units, the heating operation is performed.
Until the indoor temperature of the indoor unit reaches the set value, the base capacity that is substantially the same as the total capacity of the indoor unit to be heated and the husband of the indoor unit at the start of the heating operation.
Based on the highest temperature in each indoor heat exchanger temperature
An air conditioner, comprising: a controller that operates the variable capacity compressor with a total value of the set additional capacity .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17797193A JP3301823B2 (en) | 1993-07-19 | 1993-07-19 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17797193A JP3301823B2 (en) | 1993-07-19 | 1993-07-19 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0735392A JPH0735392A (en) | 1995-02-07 |
| JP3301823B2 true JP3301823B2 (en) | 2002-07-15 |
Family
ID=16040287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17797193A Expired - Lifetime JP3301823B2 (en) | 1993-07-19 | 1993-07-19 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3301823B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5393504B2 (en) * | 2010-01-26 | 2014-01-22 | 三菱重工業株式会社 | AIR CONDITIONING SYSTEM, ITS CONTROL METHOD, AND CONTROL PROGRAM |
-
1993
- 1993-07-19 JP JP17797193A patent/JP3301823B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0735392A (en) | 1995-02-07 |
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