JPS63233245A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPS63233245A JPS63233245A JP62065617A JP6561787A JPS63233245A JP S63233245 A JPS63233245 A JP S63233245A JP 62065617 A JP62065617 A JP 62065617A JP 6561787 A JP6561787 A JP 6561787A JP S63233245 A JPS63233245 A JP S63233245A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- frequency
- operating frequency
- upper limit
- air conditioning
- 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
- 238000004378 air conditioning Methods 0.000 abstract description 21
- 238000001816 cooling Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 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
- 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
- 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１台の室外ユニットに１台あるいは複数台の室
内ユニットを接続した空気調和装置の起動時の圧縮機の
運転周波数の制御に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to control of the operating frequency of a compressor at the time of startup of an air conditioner in which one or more indoor units are connected to one outdoor unit.
従来の装置は、特開昭５９ １３１８４１号、特開昭５
９−１３１８４２号に記載のように多室ｉ
形の空気調和装置において、その圧縮機の運転周波数を
制御する手段として各室内ユニッ１〜の室内温度と各室
内設定温度との夫々の差により空調負荷指令が制御回路
に送られ、演算のうえ運転台数を判定させる。そして周
波数可変装置（インバータ）に制御信号を送って圧縮機
の運転周波数を制御することが提案されている。しかし
、起動待前に外気温または各室内の室内温度を検出して
それに応じて圧縮機の運転周波数を変化させることにつ
いては充分な配慮がされていなかった。Conventional devices are disclosed in Japanese Patent Application Laid-open No. 59-131841 and Japanese Patent Application Laid-open No. 5
As described in No. 9-131842, in a multi-room I-type air conditioner, air conditioning is performed based on the difference between the indoor temperature of each indoor unit 1 to each indoor temperature as a means of controlling the operating frequency of the compressor. The load command is sent to the control circuit, which calculates and determines the number of operating units. It has been proposed to send a control signal to a frequency variable device (inverter) to control the operating frequency of the compressor. However, sufficient consideration has not been given to detecting the outside air temperature or the indoor temperature of each room before startup and changing the operating frequency of the compressor accordingly.
この多室形の空気調和装置では、室内ユニットからの運
転もしくは停止１−の指令および各室内サーその設定値
と現在室温との差を空調負荷として、その差により運転
台数の判定を行ない圧縮機の」−眼運転周波数の設定を
行なっているが、室内設定温度は使用者が自由に設定変
更できるので必ずしもその差がその室内の空調負荷を表
わすとはいえないという欠点があった。In this multi-room air conditioner, the difference between the command to start or stop 1- from the indoor unit and the set value of each indoor sensor and the current room temperature is used as the air conditioning load, and the number of units in operation is determined based on the difference. However, since the indoor temperature setting can be freely changed by the user, the difference cannot necessarily be said to represent the air conditioning load in the room.
本発明は上記欠点を解消し、簡（ｌｔな構成で最適な運
転周波数で運転を行ない、吐出ガス圧力の過昇を防止さ
せると共に、快適な空調状態を得ることにある。The object of the present invention is to solve the above-mentioned drawbacks, to operate at an optimum operating frequency with a simple configuration, to prevent an excessive rise in discharge gas pressure, and to obtain a comfortable air-conditioning condition.
上記目的は、室外温度を検知する検知器または各室内の
室内温度を検知する検知器と、これらの温度に応じて温
度信号を出力する温度信号出力装置と、前記温度信号出
力装置からの信号により圧縮機の上限運転周波数を算出
する周波数出力装置と、運転ユニットの空調負荷に応じ
て演算を行なう制御装置と、前記制御装置からの制御信
号に応じて圧縮機の運転周波数を可変させる周波数可変
装置とを設け、前記室外温度または室内温度に応じて運
転開始時、圧縮機の上限運転周波数を設定してかつ、上
限周波数の範囲で空調負荷に応じて演算した周波数で運
転する。The above purpose is to provide a sensor that detects the outdoor temperature or a detector that detects the indoor temperature in each room, a temperature signal output device that outputs a temperature signal according to these temperatures, and a signal from the temperature signal output device. A frequency output device that calculates an upper limit operating frequency of the compressor, a control device that performs calculations according to the air conditioning load of the operating unit, and a frequency variable device that varies the operating frequency of the compressor in accordance with a control signal from the control device. An upper limit operating frequency of the compressor is set at the start of operation according to the outdoor temperature or indoor temperature, and the compressor is operated at a frequency calculated according to the air conditioning load within the upper limit frequency range.
〔作用〕
そして、運転開始時前に予め外気温または各室内の室内
を検知し、さらに運転ユニットの空調負荷に応じて周波
数可変装置の運転周波数を設定するものである。[Operation] The outside temperature or the indoor temperature of each room is detected in advance before the start of operation, and the operating frequency of the frequency variable device is set in accordance with the air conditioning load of the operating unit.
以下、本発明の一実施例を第１図ないし第２図に従って
説明する。第１図は本発明による空気調和装置の冷凍サ
イクル系統図、第２図は実施例の流れをフローチャート
にしたものである。第１図において、この空気調和装置
は、１台の室外ユニットに２台の室内ユニットを接続し
た構成となっていて、室外ユニット内には、回転数が可
変可能な圧縮機１、四方弁２、アキュムレータ３および
室外熱交換器４と、冷房時に液冷媒が流れる油側主管７
に設けられたレシーバ５および開閉弁６と同じく冷房時
にガス冷媒が流れるガス側主管９に設けられた開閉弁８
とが備えられている。また室内ユニット内には、室内熱
交換器１０ａ、１０ｂが備えられていると共に、冷房時
に液冷媒が流れる油側支管１２ ａ、１．２ ｂに設け
られる正逆流式の電気式膨張弁１１ａ、ｌｌｂと同じく
冷房時にガス冷媒が流れるガス側支管１．４ ａ、１４
ｂに設けられる電磁弁１．３ ａ、１３ｂとがそれぞれ
備えｊ−
られている。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a refrigeration cycle system diagram of an air conditioner according to the present invention, and FIG. 2 is a flowchart showing the flow of the embodiment. In Fig. 1, this air conditioner has a configuration in which two indoor units are connected to one outdoor unit. , an accumulator 3, an outdoor heat exchanger 4, and an oil side main pipe 7 through which liquid refrigerant flows during cooling.
Similarly to the receiver 5 and the on-off valve 6 provided on the receiver 5 and the on-off valve 6, the on-off valve 8 is provided on the gas side main pipe 9 through which gas refrigerant flows during cooling.
are provided. In addition, the indoor unit is equipped with indoor heat exchangers 10a and 10b, as well as a forward and reverse flow electric expansion valve 11a provided in oil side branch pipes 12a and 1.2b through which liquid refrigerant flows during cooling. Like llb, gas side branch pipe 1.4 a, 14 through which gas refrigerant flows during cooling
Electromagnetic valves 1.3a and 13b provided at j- are respectively provided.
そして、室外ユニット内の各機器と室内ユニト内の各機
器とを図示の如く配管接続することにより、ヒートポン
プ式の冷凍サイクルを構成している。また、室外ユニッ
ト内には、室外気温を検知する検知器１５、前記検知器
からの温度に応じて圧縮機の」１限運転周波数を算出す
る周波数出力装置１６．前記周波数出力装置からの信号
と運転ユニットの空調負荷検知装置１９の空調負荷デー
タとに応じて演算を行なう制御装置１７、前記制御装置
からの制御信号に応じて圧縮機の運転周波数を前記上限
周波数の範囲で可変させる周波数可変装置１８とが設け
られている。また室内ユニット内には前記空調負荷検知
装置が設けられている。A heat pump type refrigeration cycle is constructed by connecting each device in the outdoor unit and each device in the indoor unit with piping as shown in the figure. Further, inside the outdoor unit, there is a detector 15 for detecting the outdoor temperature, and a frequency output device 16 for calculating the first operating frequency of the compressor according to the temperature from the detector. A control device 17 that performs calculations according to a signal from the frequency output device and air conditioning load data from an air conditioning load detection device 19 of the operating unit, and a control device 17 that adjusts the operating frequency of the compressor to the upper limit frequency in accordance with the control signal from the control device. A frequency variable device 18 is provided to vary the frequency within a range of . Further, the air conditioning load detection device is provided within the indoor unit.
以ヒの構成についてその作用を第２図のフローチャート
で説明する。The operation of the following configuration will be explained with reference to the flowchart of FIG.
運転開始時、周波数出力装置１６は検知器１５から温度
データ（外気温）を取り入れ、圧縮機の上限運転周波数
を出力する。さらに前記周波数と空調負荷検知袋ｗ１９
より空調負荷のデータとを＝５−
制御装置１７に入れる。制御装置１７では、上限運転周
波数と空調負荷とから前記」１限運転周波数の範囲内で
最適な圧縮機の運転周波数かえられるように制御信号を
周波数可変装置１８に入れる。At the start of operation, the frequency output device 16 takes in temperature data (outside temperature) from the detector 15 and outputs the upper limit operating frequency of the compressor. Furthermore, the frequency and air conditioning load detection bag w19
Then, the air conditioning load data is inputted into the control device 17. The control device 17 sends a control signal to the frequency variable device 18 so that the optimum operating frequency of the compressor can be changed from the upper limit operating frequency and the air conditioning load within the range of the first operating frequency.
周波数可変装置１８から圧縮機１に信号が送られそれに
合わせて圧縮機１の運転周波数が決まる。A signal is sent from the frequency variable device 18 to the compressor 1, and the operating frequency of the compressor 1 is determined accordingly.
冷房運転時、周波数可変装置１８で運転周波数が決まっ
た圧縮機１より吐出された高温高圧冷媒ガスは四方弁２
を通って室外熱交換器４に入り、ここで凝縮液化される
。液化された冷媒が油側主管７を通って電気式膨張弁１
１ａ、１１． ｂにて減圧され、室内熱交換器１０ａ、
１． Ｏｂで蒸発ガス化して負荷空間を冷房する。室内
熱交換器１０ａ、１０ｂを出た冷媒ガスは電磁弁１３ａ
、１３ｂおよびガス側主管９を通って四方弁２を経てア
キュムレータ３に入り再び圧縮機１に戻る。次に暖房時
には、前記冷房時と同様に検知器１５で外気温を検出し
て周波数出力装置で圧縮機の上限運転周波数を決定し、
これと空調負荷検知装置１９より空調負荷のデータとか
ら上限周波数内で最適の運軸周波数が決められ、圧縮機
１より吐出した冷媒は四方弁２〜ガス側主管９〜室内熱
交換器１０ ａ、］○ｂ〜液側主管７および電気式膨張
弁１１ａ、１、１． ｂ〜室外熱交換器４〜四方弁２〜
アキュムレータ３〜圧縮機１の順に流れて負荷空間を暖
房する。During cooling operation, high-temperature, high-pressure refrigerant gas discharged from the compressor 1 whose operating frequency is determined by the frequency variable device 18 is passed through the four-way valve 2.
It passes through and enters the outdoor heat exchanger 4, where it is condensed and liquefied. The liquefied refrigerant passes through the oil side main pipe 7 to the electric expansion valve 1
1a, 11. The pressure is reduced at b, and the indoor heat exchanger 10a,
1. It evaporates into gas in Ob and cools the load space. The refrigerant gas exiting the indoor heat exchangers 10a and 10b passes through the solenoid valve 13a.
, 13b and the gas side main pipe 9, enters the accumulator 3 via the four-way valve 2, and returns to the compressor 1 again. Next, during heating, the detector 15 detects the outside temperature and the frequency output device determines the upper limit operating frequency of the compressor, as in the case of cooling,
The optimum shaft operating frequency is determined within the upper limit frequency from this and the air conditioning load data from the air conditioning load detection device 19, and the refrigerant discharged from the compressor 1 is distributed from the four-way valve 2 to the gas side main pipe 9 to the indoor heat exchanger 10a. ,]○b~liquid side main pipe 7 and electric expansion valve 11a, 1, 1. b ~ Outdoor heat exchanger 4 ~ Four-way valve 2 ~
It flows from the accumulator 3 to the compressor 1 in this order to heat the load space.
以■〕の如く本発明によれば、運転開始時に外気温また
は室内温度を知ることにより圧縮機の４−眼運転周波数
が決まり吐出ガス圧力の過度な上昇を防止でき、快適な
空調空間を得ることができる。According to the present invention, the four-eye operating frequency of the compressor is determined by knowing the outside temperature or indoor temperature at the start of operation, and an excessive rise in discharge gas pressure can be prevented, thereby providing a comfortable air-conditioned space. be able to.
尚、本実施例は２台の室内ユニッ１〜の運転について説
明したが、１台の運転においても何らかわかることはな
い。Incidentally, although this embodiment has described the operation of two indoor units 1 to 1, there is nothing to be understood about the operation of one indoor unit.
第１図は、本発明の空気調和装置の一実施例を示す冷凍
サイクル系統図である。
第２図は、運転開始前後の状態をフローチャ＝１−にし
たものである。
■ 圧縮機 ２・・四方弁 ３・・アキュムレータ１１
ａ、ｂ・・電気式膨張弁 １．３ａ、ｌ） 電磁弁１
５ 検知器 】６・・周波数出方装置 １７ 制御装置
１８ ・周波数可変装置 １９・・・空調負荷検知装
置
−８〜FIG. 1 is a refrigeration cycle system diagram showing an embodiment of the air conditioner of the present invention. In FIG. 2, the state before and after the start of operation is set to flowchar=1-. ■ Compressor 2...Four-way valve 3...Accumulator 11
a, b...Electric expansion valve 1.3a, l) Solenoid valve 1
5 Detector] 6... Frequency output device 17 Control device 18 - Frequency variable device 19... Air conditioning load detection device-8~
Claims (1)
なる１台の室外ユニットと、室内熱交換器等からなる１
台あるいは複数台の室内ユニットとを備えた空気調和装
置において、外気温または室内温度を検知する検知器と
、これらの温度に応じて圧縮機の上限運転周波数を算出
する周波数出力装置とを設け、前記外気温または各室内
の室温に応じて、運転開始時圧縮機の上限運転周波数を
制御することを特徴とする空気調和装置。1. One outdoor unit consisting of a compressor with variable rotation speed, an outdoor heat exchanger, etc., and one consisting of an indoor heat exchanger, etc.
In an air conditioner equipped with one or more indoor units, a detector for detecting outside temperature or indoor temperature and a frequency output device for calculating an upper limit operating frequency of a compressor according to these temperatures are provided, An air conditioner characterized in that an upper limit operating frequency of a compressor at the start of operation is controlled according to the outside temperature or the room temperature in each room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065617A JPS63233245A (en) | 1987-03-23 | 1987-03-23 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62065617A JPS63233245A (en) | 1987-03-23 | 1987-03-23 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63233245A true JPS63233245A (en) | 1988-09-28 |
Family
ID=13292158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62065617A Pending JPS63233245A (en) | 1987-03-23 | 1987-03-23 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63233245A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013318A1 (en) * | 1995-10-06 | 1997-04-10 | Hitachi, Ltd. | Motor controller |
| US6603280B2 (en) | 1998-04-02 | 2003-08-05 | Hitachi, Ltd. | Motor controller |
| KR20040012348A (en) * | 2002-08-02 | 2004-02-11 | 엘지전자 주식회사 | A driving control method of inverter air- conditioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039842B2 (en) * | 1977-02-21 | 1985-09-07 | 株式会社日立製作所 | Boiler/turbine coordinated voltage transformation operation method |
-
1987
- 1987-03-23 JP JP62065617A patent/JPS63233245A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039842B2 (en) * | 1977-02-21 | 1985-09-07 | 株式会社日立製作所 | Boiler/turbine coordinated voltage transformation operation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997013318A1 (en) * | 1995-10-06 | 1997-04-10 | Hitachi, Ltd. | Motor controller |
| US6603280B2 (en) | 1998-04-02 | 2003-08-05 | Hitachi, Ltd. | Motor controller |
| KR20040012348A (en) * | 2002-08-02 | 2004-02-11 | 엘지전자 주식회사 | A driving control method of inverter air- conditioner |
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