JPS63295879A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPS63295879A JPS63295879A JP62132578A JP13257887A JPS63295879A JP S63295879 A JPS63295879 A JP S63295879A JP 62132578 A JP62132578 A JP 62132578A JP 13257887 A JP13257887 A JP 13257887A JP S63295879 A JPS63295879 A JP S63295879A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- pole
- compressors
- capacity
- constant speed
- 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
- 239000003507 refrigerant Substances 0.000 claims abstract description 18
- 239000003921 oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
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
- 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
-
- 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
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
-
- 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
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は多室マルチ形空気調和機における複機圧縮機を
有した冷媒サイクルに関するものであるっ従来の技術
従来の技術について特開昭６１−２０８４７３−号を参
照して第２図で説明する。この図において１１は圧縮機
、１２は室外側熱交換ぼｇ、１３は室内側熱交換器でこ
の例は１３ａ〜１３Ｃまでの室内ユニット３台の例を示
す。１４はインバーター装置で圧縮機の回転数を室内ユ
ニットの熱負荷に応じて変化させ容量制御を行うもので
ある。１６は絞り装置、１６は電磁弁である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a refrigerant cycle having a compound compressor in a multi-room multi-type air conditioner. This will be explained in FIG. 2 with reference to the number -. In this figure, 11 is a compressor, 12 is an outdoor heat exchanger, 13 is an indoor heat exchanger, and this example shows three indoor units 13a to 13C. Reference numeral 14 is an inverter device that controls the capacity by changing the rotation speed of the compressor according to the heat load of the indoor unit. 16 is a throttle device, and 16 is a solenoid valve.
以上のような冷媒サイクルを有する空気調和機知おいて
、インバーター容量は室内ユニットの最大負荷に見合っ
た圧縮機容量と同等もしくは若干太き目のものが必要で
あった。このインバーターは極めて高価なものであった
。家庭用など比較的小形の空気調和機では生産台数も多
く量産効果により問題も小さいとしても、産業用空気調
和機（ビル用空気調和機など）では圧縮機８量も大形で
、インバーターも大形、大容量全必要とし極めて高価な
ものであった。In the air conditioners having the refrigerant cycle as described above, the inverter capacity needs to be equal to or slightly larger than the compressor capacity corresponding to the maximum load of the indoor unit. This inverter was extremely expensive. For relatively small air conditioners such as those for home use, the problem may be small due to the large number of units produced and the effect of mass production, but for industrial air conditioners (such as air conditioners for buildings), the compressor is large and the inverter is also large. It required a large size, large capacity, and was extremely expensive.
発明が解決しようとする問題点
前記で説明した如く、特に産業用空気調和機、例えばテ
ナントビルといわれる賃貸用ビルの空調機では家庭用な
どに比べ大形化は必然で、しかも、賃貸用ビルは貸主別
に部屋を間仕切りし、それぞれ室内ユニットヲ設置する
いわゆる、室外ユニットは１台、室内ユニットは複数台
接続する空気調和方式が一般化しているが、借主の業種
により熱負荷もちがい、使用する時間帯もちがい、省エ
ネの観点から容量制御は必要であるが、前述の如くイン
バーターは容量制御には適しているが、極めて高価であ
る（％に産業用の大形大容量のインバーター）という問
題点があった。Problems to be Solved by the Invention As explained above, it is inevitable that industrial air conditioners, for example air conditioners for rental buildings called tenant buildings, will be larger than those for home use. In most cases, the air conditioning system in which the rooms are divided by each tenant and an indoor unit is installed in each room, with one outdoor unit connected and multiple indoor units, has become commonplace, but the heat load differs depending on the tenant's industry and the amount of time it is used. However, capacity control is necessary from the perspective of energy saving, and as mentioned above, inverters are suitable for capacity control, but they have the problem of being extremely expensive (large-scale, large-capacity inverters for industrial use). was there.
本発明はインバーターを用いることなく、容量制御がで
きる安価な空気調和機を提供するものである。The present invention provides an inexpensive air conditioner that can control capacity without using an inverter.
問題点を解決するための手段
そこで本発明は、複数の圧縮機を有する室外ユニットと
複数の室内ユニットよりなる単一の冷媒サイクルで構成
される空気調和機としたもので、前記複数圧縮機のうち
、一方を定速回転型の圧縮機、他方を２極、４極切シ換
え可能な電動機に有した、いわゆる２段階容量制御可能
な極数変換型圧縮機とし、これら複数の圧縮機を均油管
で連結し、又冷媒の圧縮機における吐出管、吸入管をそ
れぞれティースなどで合流連結し、単一冷媒サイクルを
構成し、前記複数の室内ユニットの運転状況（いわゆる
負荷変動）に応じて、定速型の圧縮機の発停と他方の極
変圧縮機の２極、４極容量制御と組合せ多様な容量制御
を可能にするものである。Means for Solving the Problems The present invention provides an air conditioner configured with a single refrigerant cycle consisting of an outdoor unit having a plurality of compressors and a plurality of indoor units. One of these is a constant speed rotation type compressor and the other is a so-called pole change type compressor with two-stage capacity control, which has an electric motor that can switch between two and four poles. They are connected by oil equalizing pipes, and the discharge pipes and suction pipes of the refrigerant compressor are connected together with teeth etc. to form a single refrigerant cycle, and the refrigerant is refrigerated according to the operating conditions (so-called load fluctuations) of the plurality of indoor units. This makes it possible to perform a variety of capacity controls by combining the constant-speed compressor's on-off and the two-pole and four-pole capacity controls of the other pole-variable compressor.
作 用
本発明は前述の如くインバーターを使用せず、多様な容
量制御を可能にしたもので、能力を２５％、５０％、７
６％、１００％に制御することができる。Function As mentioned above, the present invention enables various capacity control without using an inverter, increasing capacity by 25%, 50%, and 7.
It can be controlled at 6% and 100%.
実施例
以下本発明の一実施例について添付図面により説明する
。第１図は本発明の冷媒サイクルを示す。EXAMPLE Hereinafter, an example of the present invention will be described with reference to the accompanying drawings. FIG. 1 shows a refrigerant cycle of the present invention.
下表はその冷媒サイクルにおける圧縮機の運転状況（Ｏ
Ｎ−ＯＦＦ状況）と能力の関係を表にしだものである。The table below shows the compressor operating status (O
This table shows the relationship between (N-OFF status) and ability.
まず、１ａは定速形圧縮機（すなわち能力が一定容量の
もの）１ｂは電動機の極数が２極（高速）。First, 1a is a constant speed compressor (that is, one with a constant capacity), and 1b is a motor with two poles (high speed).
４極（低速）切り換え可能な電動機を有した圧縮機です
なわち能力可変式圧縮機（以下極変膨圧縮機という。）
である。２は室外側熱交換器、３ａ。A compressor with a 4-pole (low-speed) switchable electric motor, that is, a variable capacity compressor (hereinafter referred to as a variable-pole expansion compressor).
It is. 2 is an outdoor heat exchanger, 3a.
３ｂ・・・・・・３ｄは室内側熱交換器で、３ａは第一
室内ユニット用、３ｂは第２室内ユニツト用、３ｃは第
３室内ユニツト用、３ｄはｄ！Ｊ４室内ユニット用を示
す。４はｎ１■記圧縮機１ａ、１ｂの＠滑油が共有にな
るための均油管、５は単一冷媒サイクルをｆＩｔ成する
だめ、それぞれ圧縮機の吐出管、牧人・１１を合流連結
するためのティースを示す。６ａ〜６ｄは室内ユニット
にそれぞれ付した冷媒回路開閉用の電磁弁で運転する時
、開、停止の時、閉じるものである。７ａ〜７ｂはそれ
ぞれの室内ユニット用の絞り装置である。3b...3d are indoor heat exchangers, 3a is for the first indoor unit, 3b is for the second indoor unit, 3c is for the third indoor unit, 3d is for d! Shown is for J4 indoor unit. 4 is an oil equalizing pipe for sharing the lubricating oil of the compressors 1a and 1b, and 5 is for connecting the discharge pipes of the compressors and Makijin 11 to form a single refrigerant cycle. Showing teeth. Reference numerals 6a to 6d are electromagnetic valves for opening and closing the refrigerant circuit attached to the indoor units, respectively, which are opened when the indoor unit is operated and closed when the indoor unit is stopped. 7a to 7b are diaphragm devices for the respective indoor units.
上記表について説明すると、例えば室内ユニット１台運
伝時には定速形圧縮機は停止し、極変膨圧縮機を４種（
低速）運転させ能力を２５％にしたものである。To explain the above table, for example, when one indoor unit is in operation, the constant speed compressor stops, and the four types of extremely variable expansion compressors (
The engine is operated at low speed) with a capacity of 25%.
なお圧縮機運転は室内ユニットの運転状況により電子式
圧縮機運転判断装置８（第１図）が必要である。Note that the compressor operation requires an electronic compressor operation judgment device 8 (FIG. 1) depending on the operating status of the indoor unit.
発明の効果
上記実施例の説明からも明らかな如く、本発明は定速形
圧縮機と極変膨圧縮機を組合わせて冷媒サイクルを形成
したもので、複数設置された室内ユニットの運転状況す
なわち、負荷変動に応じて比例的に容量制御が出来る。Effects of the Invention As is clear from the description of the above embodiments, the present invention forms a refrigerant cycle by combining a constant speed compressor and a variable expansion compressor, and the operating conditions of a plurality of indoor units installed, i.e. , capacity can be controlled proportionally according to load fluctuations.
しかも従来容量制御するのに高価なインバーターによる
制御に比べ、インバーターを使用しない冷媒サイクルの
ため、大巾なコスト低減が可能となったものである。Moreover, compared to conventional capacity control using an expensive inverter, the refrigerant cycle does not use an inverter, making it possible to significantly reduce costs.
第１図は本発明の一実施例を示す冷媒サイクル図、第２
図は従来のインバーターを使用した容量制御可能な室内
ユニットが複数台設置する形式の冷媒サイクル図を示す
。
１ａ・・・・・・定速形（容量一定形）圧縮機、１ｂ・
・・・・・極変膨圧縮機、４・・・・・・均油管、６・
・・・・・ティーズ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図Fig. 1 is a refrigerant cycle diagram showing one embodiment of the present invention;
The figure shows a refrigerant cycle diagram of a conventional refrigerant cycle in which multiple capacity-controllable indoor units are installed using inverters. 1a... Constant speed type (constant capacity type) compressor, 1b.
... Extremely variable expansion compressor, 4 ... Oil equalizing pipe, 6.
...Tease. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure
Claims (1)
交換器及び複数の圧縮機などよりなる室外ユニットから
なる単一の冷媒サイクルを備え、前記複数の圧縮機のう
ち一方を定速回転型の圧縮機、他方を２極、４極切り換
え不能な電動機を有した極数変換型圧縮機とし、これら
複数の圧縮機を均油管で連結するとともに冷媒の吐出管
、吸入管を合流連結し、前記複数の室内ユニットの運転
状況に応じて、前記複数圧縮機の運転状態を一方の圧縮
機停止や他方の圧縮機の２極、４極切り換えで容量比例
制御を行う圧縮機運転判断装置を有する空気調和機。It is equipped with a single refrigerant cycle consisting of a plurality of indoor units having a heat exchanger and a throttling device, and an outdoor unit consisting of a heat exchanger and a plurality of compressors, and one of the plurality of compressors is a constant speed rotation type. The other is a pole change type compressor having a two-pole and four-pole electric motor that cannot be switched, and these multiple compressors are connected by oil equalizing pipes, and refrigerant discharge pipes and suction pipes are connected together, The compressor operation determination device includes a compressor operation determination device that performs capacity proportional control of the operation status of the plurality of compressors by stopping one compressor and switching between two-pole and four-pole of the other compressor according to the operation status of the plurality of indoor units. Air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62132578A JPS63295879A (en) | 1987-05-28 | 1987-05-28 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62132578A JPS63295879A (en) | 1987-05-28 | 1987-05-28 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63295879A true JPS63295879A (en) | 1988-12-02 |
Family
ID=15084600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62132578A Pending JPS63295879A (en) | 1987-05-28 | 1987-05-28 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63295879A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2045548A1 (en) * | 2007-10-05 | 2009-04-08 | Frigo System S.p.A. | Refrigerating unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158462A (en) * | 1982-03-15 | 1983-09-20 | 三菱重工業株式会社 | Multiple chamber type air conditioner |
| JPS58179755A (en) * | 1983-03-16 | 1983-10-21 | Matsushita Refrig Co | Air conditioning control device |
| JPS61178585A (en) * | 1985-02-01 | 1986-08-11 | Daikin Ind Ltd | Air conditioner |
| JPS629153A (en) * | 1985-07-05 | 1987-01-17 | 三菱電機株式会社 | Refrigerator |
-
1987
- 1987-05-28 JP JP62132578A patent/JPS63295879A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158462A (en) * | 1982-03-15 | 1983-09-20 | 三菱重工業株式会社 | Multiple chamber type air conditioner |
| JPS58179755A (en) * | 1983-03-16 | 1983-10-21 | Matsushita Refrig Co | Air conditioning control device |
| JPS61178585A (en) * | 1985-02-01 | 1986-08-11 | Daikin Ind Ltd | Air conditioner |
| JPS629153A (en) * | 1985-07-05 | 1987-01-17 | 三菱電機株式会社 | Refrigerator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2045548A1 (en) * | 2007-10-05 | 2009-04-08 | Frigo System S.p.A. | Refrigerating unit |
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