JPS63180052A - Multi-chamber type air conditioner - Google Patents
Multi-chamber type air conditionerInfo
- Publication number
- JPS63180052A JPS63180052A JP62010668A JP1066887A JPS63180052A JP S63180052 A JPS63180052 A JP S63180052A JP 62010668 A JP62010668 A JP 62010668A JP 1066887 A JP1066887 A JP 1066887A JP S63180052 A JPS63180052 A JP S63180052A
- Authority
- JP
- Japan
- Prior art keywords
- operating
- compressor
- indoor
- electric expansion
- air conditioner
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は個別に空気調和する多室形空調機に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a multi-room air conditioner that individually conditions air.
従来の技術
近年、ビル用空調機としては、省エネルギー、使い勝手
、メンテナンスの面から個別空調が望まれ、多室形空調
機が着目されてきている。BACKGROUND OF THE INVENTION In recent years, multi-room air conditioners have been attracting attention as air conditioners for buildings, with individual air conditioning being desired from the viewpoints of energy saving, ease of use, and maintenance.
以下図面を後熱しながら、上述したような従来の多室形
空調機について説明する。The conventional multi-room air conditioner as described above will be explained below while referring to the drawings.
第３図は従来の多室形空調機の冷凍回路を示すものであ
る。第３図に於いて、１は圧縮機、２は四方弁、３は室
外熱交換器、４は室外ファン、６は暖房用電動膨張弁で
あシこれらで室外ユニット６を構成している。７．７’
、７“は冷房用電動膨張弁、８ 、８’ 、 ８“は室
内熱交換器、ｓ 、 ｃａｚ ｓ／／は室内ファンであ
り、これらでそれぞれ室内ユニッ）１０，１σ、１０“
を構成し、図の如く配管接続することにより冷凍回路を
構成している。FIG. 3 shows a refrigeration circuit of a conventional multi-room air conditioner. In FIG. 3, 1 is a compressor, 2 is a four-way valve, 3 is an outdoor heat exchanger, 4 is an outdoor fan, and 6 is an electric expansion valve for heating.These constitute an outdoor unit 6. 7.7'
, 7" is an electric expansion valve for cooling, 8, 8', 8" is an indoor heat exchanger, s, caz s// is an indoor fan, and these are indoor units) 10, 1σ, 10", respectively.
A refrigeration circuit is constructed by connecting the pipes as shown in the figure.
以上のように構成された多室形空調機について、以下そ
の動作制御について説明する。The operation control of the multi-room air conditioner configured as described above will be explained below.
圧縮機１の運転周波数は室内ユニット１ｏ、１σ。The operating frequency of the compressor 1 is indoor unit 1o, 1σ.
１ｏ“の吸込空気温度と空調設定温度との差温によって
決められ、暖房用電動膨張弁５、冷房用電動膨張弁７．
７’、７“はそれぞれ冷暖房時に同様のアルゴリズムに
より、制御器１１によシ制御される。冷房用電動膨張弁
−ｒ 、 −ｒ′、 ７／／についてだけ説明すると、
周波数検知手段１１ａによって検知した圧縮機１の運転
周波数によって弁開度演算決定手段１１ｂによシ弁開度
が決められ弁開度を制御する制御手段１１Ｃ２１１Ｃ′
、１１Ｃ“により制御される。この基本制御に基づいて
更に詳細に説明する。まず冷房運転においては、圧縮機
１で圧縮された冷媒は四方弁２を介して室外熱交換器３
で凝縮液化し、全開とされた暖房用電動膨張弁６を介し
て室内ユニット１０．１０’、１０“の冷房用電動膨張
弁７．７’、７“でそれぞれ減圧されて室内熱交換器８
、８’、 ８”にて蒸発し、四方弁２を介して圧縮機
１に吸入される。この時冷房用電動膨張弁７．７’、７
“は、使用しない室内ユニットについては全閉とし、他
の室内ユニットについては、前記の如く圧縮機１の運転
周波数に応じて弁開度が決められ制御器１１によって制
御される。又、暖房運転においては、圧縮機１で圧縮さ
れた冷媒は、四方弁２を介して室内熱交換器８゜８′、
８“で凝縮液化し、全開とされた冷房用電動膨張弁７．
７’、７“を介して室外ユニット６の暖房用電動膨張弁
６で減圧されて室外熱交換器３で蒸発し、四方弁２を介
して圧縮機１に吸入される。It is determined by the temperature difference between the intake air temperature of 1o" and the air conditioner set temperature, and the electric expansion valve for heating 5 and the electric expansion valve for cooling 7.
7' and 7'' are respectively controlled by the controller 11 using the same algorithm during heating and cooling.Only the electric expansion valves -r, -r', 7// for cooling will be explained.
Control means 11C211C' which determines the valve opening degree by the valve opening calculation determining means 11b based on the operating frequency of the compressor 1 detected by the frequency detection means 11a and controls the valve opening degree.
, 11C" will be explained in more detail based on this basic control. First, in cooling operation, the refrigerant compressed by the compressor 1 is passed through the four-way valve 2 to the outdoor heat exchanger 3.
It is condensed and liquefied at the heating electric expansion valve 6 which is fully opened, and then depressurized by the cooling electric expansion valves 7, 7' and 7'' of the indoor units 10, 10' and 10'', respectively, and then transferred to the indoor heat exchanger 8.
, 8', 8'' and is sucked into the compressor 1 via the four-way valve 2. At this time, the cooling electric expansion valves 7, 7', 7
Indoor units that are not in use are fully closed, and for other indoor units, the valve opening is determined according to the operating frequency of the compressor 1 and controlled by the controller 11. , the refrigerant compressed by the compressor 1 is passed through the four-way valve 2 to the indoor heat exchanger 8°8',
7. Electric expansion valve for cooling that condensed and liquefied at 8" and was fully opened.
7', 7'', the pressure is reduced by the electric heating expansion valve 6 of the outdoor unit 6, evaporated in the outdoor heat exchanger 3, and sucked into the compressor 1 via the four-way valve 2.
この時冷房用電動膨張弁７．７’、７”は、使用しない
室内ユニットについては全閉し、他は全開とする。暖房
用電動膨張弁６は前述の如く圧縮機１の運転周波数に応
じて制御器１１によって弁開度が決められ制御される。At this time, the electric expansion valves 7, 7', 7'' for cooling are fully closed for indoor units that are not in use, and the others are fully open. The valve opening degree is determined and controlled by the controller 11.
発明が解決しようとする問題点
しかしながら上記のような構成では、室内ユニットの運
転台数に応じた圧縮機運転周波数に対応した電動膨張弁
の制御を行なっているため、間接的なあらかじめ仮定設
定した負荷に対応した電動膨張弁の制御となり、あらゆ
る運転状況においては、効率の良い運転が行なえないと
いう欠点を有していた。Problems to be Solved by the Invention However, in the above configuration, since the electric expansion valve is controlled in accordance with the compressor operating frequency according to the number of operating indoor units, indirect load The electric expansion valve is controlled in accordance with the current conditions, and has the disadvantage that efficient operation cannot be performed under all operating conditions.
本発明は上記欠点に鑑み、負荷を直接検知し電動膨張弁
を制御することにより最適制御を行ない粉率の良い運転
を行なえる多室形空調機を提供するものである。In view of the above-mentioned drawbacks, the present invention provides a multi-chamber air conditioner that can perform optimal control by directly detecting the load and controlling an electric expansion valve, thereby allowing operation with a good powder ratio.
問題点を解決するための手段
この目的を解決するために本発明の多室形空気調和機は
、運転台数或は運転定格能力と吸込空気温度と圧縮機運
転周波数とに応じた電動膨張弁開度を調整する検知制御
装置を設は構成されている。Means for Solving the Problems In order to solve this object, the multi-room air conditioner of the present invention opens an electric expansion valve according to the number of operating units or rated operating capacity, intake air temperature, and compressor operating frequency. The sensor is equipped with a detection control device that adjusts the temperature.
作 用
この構成によって、各室内ユニットの吸込空気温度を個
別に検知することにより、各室内ユニットの負荷が正確
に把握でき、かつ、運転台数或は運転定格能力と圧縮機
運転周波数とを検知することにより、システムの運転状
況が把握でき、これらを検知・把握した上で電動膨張弁
開度を各室内ユニット毎に個々に制御するため、最適制
御が行なえ、効率が大巾に向上し、省エネルギー性が増
加する。Function: With this configuration, by individually detecting the intake air temperature of each indoor unit, the load of each indoor unit can be accurately grasped, and the number of operating units or operating rated capacity and compressor operating frequency can be detected. This allows the operating status of the system to be grasped, and after detecting and understanding these, the electric expansion valve opening degree is controlled individually for each indoor unit, making it possible to perform optimal control, greatly improving efficiency and saving energy. sex increases.
実施例
以下本発明の一実施例について、図面を参照しながら説
明する。EXAMPLE An example of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例の多室形空調機の冷凍回路を
示すもので、基本的な冷凍回路は従来例と同じであるの
で同一番号を付している。２０゜２σ、２０“は室内側
制御器であり、各室内機１０．１０’、１０“の吸込空
気温度を検知する温度センサー２１．２１’、２１”か
らと、室外側制御器２２から信号を受け、冷房用電動膨
張弁７゜７′、７”を制御する。又室外側制御器２２は
各室内側制御器２ｏ、２σ、２０“から信号を受け、暖
房用電動膨張弁６と圧縮機１とを制御する。FIG. 1 shows a refrigeration circuit of a multi-room air conditioner according to an embodiment of the present invention.Since the basic refrigeration circuit is the same as that of the conventional example, the same numbers are given to it. 20°2σ, 20" is an indoor controller, which receives signals from temperature sensors 21, 21', 21" that detect the intake air temperature of each indoor unit 10, 10', 10", and from the outdoor controller 22. In response to this, the electric cooling expansion valves 7°7' and 7'' are controlled. The outdoor controller 22 receives signals from the indoor controllers 2o, 2σ, and 20'', and controls the electric heating expansion valve 6 and the compressor 1.
以上のように構成された多室形空調機について、以下そ
の制御について説明する。Control of the multi-room air conditioner configured as described above will be explained below.
圧縮機１の運転周波数制御については、室内側制御器２
０．２０’、２０”の運転検知手段２４゜２４’、２４
″からの信号によシ、運転台数判定手段２５によって運
転台数を求め、温度センサー２゜２１’、２１“から吸
込空気温度検知手段２６゜２６’、２６“で吸込空気温
度を各々検知し、吸込空気温度判定手段２７によシ総負
荷を判定し周波数決定手段２８にて、前記運転台数と総
負荷とから運転周波数を決定し、周波数制御手段２９に
よシ運転周波数を制御する。又、電動膨張弁制御につい
ては、冷暖房運転の判定と、各室内機の室内側制御器２
０．２０’、２０“の運転検知手段２４゜２４’、２４
”による運転検知とから、弁開度決定手段３０．３０’
、３０“、３１によりそれぞれ弁開度が決められ弁開度
制御手段３２．３２’、３２”、３３によりそれぞれ制
御される。Regarding the operating frequency control of the compressor 1, the indoor controller 2
0.20', 20'' driving detection means 24°24', 24
Based on the signal from ``, the number of operating units is determined by the operating unit number determining means 25, and the intake air temperature is detected from the temperature sensors 2° 21', 21'' by the suction air temperature detecting means 26° 26', 26'', respectively. The intake air temperature determining means 27 determines the total load, the frequency determining means 28 determines the operating frequency based on the number of operating units and the total load, and the frequency controlling means 29 controls the operating frequency. Regarding electric expansion valve control, determination of cooling/heating operation and indoor controller 2 of each indoor unit are performed.
0.20', 20" driving detection means 24°24', 24
” From the operation detection, the valve opening degree determining means 30.30'
, 30'', 31 determine the valve opening degrees, and are controlled by valve opening degree control means 32, 32', 32'', 33, respectively.
以上のように本実施例によれば、室内ユニットの運転台
数或は運転定格能力を検知すると共に、各室内ユニット
の吸込空気温度を検知し、かつ、運転台数或は運転定格
能力と吸込空気温度と圧縮機運転周波数とに応じた電動
膨張弁開度を調整する検知制御装置を設けることにより
、総負荷が検知でき、それに応じた運転周波数及び電動
膨張弁制御が簡単に行なうことが可能となυ、あらゆる
運転状況における効率の良い運転制御を実現することが
できる。As described above, according to this embodiment, the number of operating indoor units or rated operating capacity is detected, the intake air temperature of each indoor unit is detected, and the number of operating units or rated operating capacity and the intake air temperature are detected. By providing a detection control device that adjusts the electric expansion valve opening according to the compressor operating frequency and compressor operating frequency, the total load can be detected and the operating frequency and electric expansion valve can be easily controlled accordingly. υ, it is possible to realize efficient driving control in all driving situations.
発明の効果
以上のように本発明は、室内ユニットの運転台数或は運
転定格能力を検知すると共に、各室内ユニットの吸込空
気温度を検知し、かつ、運転台数或は運転定格能力と吸
込空気温度と圧縮機運転周波数とに応じた電動膨張弁開
度を調整する検知制御装置を設けることにより、運転台
数に応じた総負荷が検知でき、それに応じた運転周波数
及び電動膨張弁制御が簡単に行なうことが可能となり、
あらゆる運転状況においても、効率の良い運転ができ、
省エネルギー性も大巾に向上し、その実用的効果は大な
るものがある。Effects of the Invention As described above, the present invention detects the number of operating units or rated operating capacity of indoor units, detects the intake air temperature of each indoor unit, and detects the number of operating units or rated operating capacity and the intake air temperature. By installing a detection control device that adjusts the electric expansion valve opening according to the compressor operating frequency and compressor operating frequency, the total load can be detected according to the number of operating units, and the operating frequency and electric expansion valve control can be easily performed accordingly. It becomes possible to
Enables efficient driving under all driving conditions,
Energy saving has also been greatly improved, and the practical effects are significant.
第１図は本発明の一実施例における多室形空気調和機の
冷凍回路図、第２図は同制御ブロック図、第３図は従来
の多室形空気調和機の冷凍回路図、第４図は同制御ブロ
ック図である。
１・・・・・・圧縮機、３・・・・・・室外熱交換器、
５・・・・・・暖房用電動膨張弁、６・・・・・・室外
ユニット、７．７’。
７″・・・・・・冷房用電動膨張弁、８．８’、８”・
・・・・・室内熱交換器、１０．１０’、１０″・・・
・・・室内ユニット、２ｏ、２σ、２０“・・・・・・
室内側制御器１．２２・・・・・・室外側制御器。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図 ｌ−圧ＭＩ機
３−！外熟交撲５
第３図
石
第４図FIG. 1 is a refrigeration circuit diagram of a multi-chamber air conditioner according to an embodiment of the present invention, FIG. 2 is a control block diagram thereof, FIG. 3 is a refrigeration circuit diagram of a conventional multi-chamber air conditioner, and FIG. The figure is a block diagram of the same control. 1...Compressor, 3...Outdoor heat exchanger,
5...Electric expansion valve for heating, 6...Outdoor unit, 7.7'. 7″・・・Electric expansion valve for cooling, 8.8′, 8″・
...Indoor heat exchanger, 10.10', 10''...
...Indoor unit, 2o, 2σ, 20"...
Indoor controller 1.22...Outdoor controller. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure l-Pressure MI machine 3-! Gaikyuukomo 5 Figure 3 Stone Figure 4
Claims (1)
数台の室内ユニットを１対の接続配管より接続した多室
形空気調和機において、前記圧縮機、室外熱交換器、電
動式膨張弁、室内熱交換器で冷凍回路を構成し、室内ユ
ニットの運転台数或は運転定格能力を検知すると共に、
各室内ユニットの吸込空気温度を検知し、かつ、運転台
数或は運転定格能力と吸込空気温度と圧縮機運転周波数
とに応じた電動膨張弁開度を調整する検知制御装置を設
けた多室形空気調和機。In a multi-room air conditioner in which a plurality of indoor units are connected to one outdoor unit equipped with a variable frequency compressor through a pair of connecting pipes, the compressor, the outdoor heat exchanger, and the electric expansion valve are provided. A refrigeration circuit is configured with an indoor heat exchanger, and the number of operating indoor units or rated operating capacity is detected.
Multi-room type equipped with a detection control device that detects the intake air temperature of each indoor unit and adjusts the electric expansion valve opening according to the number of operating units or rated operating capacity, intake air temperature, and compressor operating frequency. Air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62010668A JPS63180052A (en) | 1987-01-20 | 1987-01-20 | Multi-chamber type air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62010668A JPS63180052A (en) | 1987-01-20 | 1987-01-20 | Multi-chamber type air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63180052A true JPS63180052A (en) | 1988-07-25 |
Family
ID=11756622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62010668A Pending JPS63180052A (en) | 1987-01-20 | 1987-01-20 | Multi-chamber type air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63180052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220846A (en) * | 1997-02-07 | 1998-08-21 | Matsushita Electric Ind Co Ltd | Multi-chamber type air conditioning apparatus |
| JP2001272114A (en) * | 2000-03-29 | 2001-10-05 | Sharp Corp | Control for refrigerant of multi-chamber type air conditioner |
| JP2011000387A (en) * | 2009-06-22 | 2011-01-06 | Panasonic Electric Works Co Ltd | Cosmetic apparatus |
-
1987
- 1987-01-20 JP JP62010668A patent/JPS63180052A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10220846A (en) * | 1997-02-07 | 1998-08-21 | Matsushita Electric Ind Co Ltd | Multi-chamber type air conditioning apparatus |
| JP2001272114A (en) * | 2000-03-29 | 2001-10-05 | Sharp Corp | Control for refrigerant of multi-chamber type air conditioner |
| JP2011000387A (en) * | 2009-06-22 | 2011-01-06 | Panasonic Electric Works Co Ltd | Cosmetic apparatus |
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