JPS6334469A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPS6334469A JPS6334469A JP61175623A JP17562386A JPS6334469A JP S6334469 A JPS6334469 A JP S6334469A JP 61175623 A JP61175623 A JP 61175623A JP 17562386 A JP17562386 A JP 17562386A JP S6334469 A JPS6334469 A JP S6334469A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- compressor
- converter
- indoor
- signal
- 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
- 238000005057 refrigeration Methods 0.000 claims description 8
- 239000003507 refrigerant Substances 0.000 description 12
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005856 abnormality Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- 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) [Abstract] 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〕
本発明ば空気調和機に係り、特に冷凍サイクル内の冷媒
量の過不足を判定する検知器ｔ［ｔに関する〔従来７〕
技術〕
従来の空気調和機の冷凍サイクルｖｃは弟３図に示すよ
うに圧縮機吐出ガス温度検知器金膜けたものがあるが、
これは主として冷媒ガス温度の異常上昇を防止するため
のものであった。このために、蒸発器側の吸込空気温度
が高く、圧縮機の吐出ガス温度が比較的高くなる条件の
もとで、冷媒ガスが不足しているかどうかの検出は可能
であったが、蒸発器の吸込空気温度が低い条件のもとて
冷媒ガスが不足しているかどうかの点については配慮さ
れていなかった。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an air conditioner, and particularly relates to a detector t [t] that determines whether the amount of refrigerant in a refrigeration cycle is excessive or insufficient [Conventional 7]
Technology] The conventional air conditioner refrigeration cycle VC has a compressor discharge gas temperature sensor with a gold film as shown in Figure 3.
This was mainly to prevent abnormal rise in refrigerant gas temperature. For this reason, it has been possible to detect whether there is a shortage of refrigerant gas under conditions where the suction air temperature on the evaporator side is high and the discharge gas temperature from the compressor is relatively high. No consideration was given to whether or not there was a shortage of refrigerant gas under conditions where the intake air temperature was low.
なお、この桟の装置として関連するものに特公昭５９−
１２９４２号などがある。In addition, related to this crosspiece device is the Special Publication 1983-
12942, etc.
上記従来技術は蒸発器側の吸込空気温度が低い条件下に
おける冷媒ガスの不足を検知する点については配慮され
ておらず、冷媒量の不足ＶＣよって能力が低下するとい
う問題があった。The above-mentioned conventional technology does not take into consideration the point of detecting a shortage of refrigerant gas under conditions where the temperature of the intake air on the evaporator side is low, and there is a problem in that the capacity decreases due to the insufficient amount of refrigerant VC.
本発明の目的は、いかなる条件下においても冷凍サイク
ル中の冷媒ガスの不足状態を検出する検知装置を提供す
ることにある。An object of the present invention is to provide a detection device that detects a refrigerant gas shortage state in a refrigeration cycle under any conditions.
上記目的は、室外熱交換器と室内熱交換器の仝気吸込部
付近に空気温度検知器を設け、圧縮機の吐出配管に吐出
ガス温度検出器を設け、前記室内外熱交換器の蒸発器と
なる熱交換器の吸込空気温度検出器からのアナログ信号
ｔデジタル信号に変換する変換器を設け、該変換器から
の信号を受けて前記圧縮機の運転を制御する制御器を設
け、予め設定された運転温度の正常領域と異常領域の判
定ヶして前記圧縮機の運転を制御することにより達成さ
れる。The above purpose is to provide an air temperature detector near the air suction part of the outdoor heat exchanger and the indoor heat exchanger, provide a discharge gas temperature detector in the discharge pipe of the compressor, and install an air temperature detector near the air suction part of the outdoor heat exchanger and the indoor heat exchanger. A converter for converting an analog signal from a suction air temperature detector of a heat exchanger into a digital signal is provided, and a controller is provided for receiving a signal from the converter and controlling the operation of the compressor, and a preset value is provided. This is achieved by determining the normal range and abnormal range of the operating temperature and controlling the operation of the compressor.
本発明の装置は、吐出ガス温度と蒸発器となる熱交換器
の吸込空気温度を検出し、該両温度が予め設定した正常
領域あるいけ異常領域の範囲にあるか否かを判定し、そ
の判定信号を圧縮機の制御＃に送信して制御する。それ
によって、冷凍サイクル中の冷媒ガスの不足状態が判定
でき機器の損傷を防ぐことができる。The device of the present invention detects the temperature of the discharge gas and the temperature of the suction air of the heat exchanger that serves as the evaporator, determines whether or not both temperatures are within a preset normal range or abnormal range, and The determination signal is sent to the compressor control # to control it. Thereby, it is possible to determine whether there is a shortage of refrigerant gas in the refrigeration cycle and prevent damage to the equipment.
以下、本発明の一実施例を第１図乃至第２図により説明
する。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
１は圧縮機で吐出側に四方弁２を介して室内熱交換器３
および室外熱交換器８が接続されている。４．５は絞り
装置で逆止弁６．７とぞｎぞれ並列に接続されており、
前記と室内外熱交換器３と８の間に直列に接続されてい
る。９はアキュムレータで前記圧縮機１の吸入側に接続
されている。1 is a compressor that is connected to an indoor heat exchanger 3 via a four-way valve 2 on the discharge side.
and an outdoor heat exchanger 8 are connected. 4.5 is a throttle device and is connected in parallel with check valve 6.7.
It is connected in series between the above and the indoor/outdoor heat exchangers 3 and 8. 9 is an accumulator connected to the suction side of the compressor 1.
１０は室外吸込空気温度検知器で室内ユニットの空気吸
込部２０付近に設けられている。１１け室外吸込空気温
度検知器で室外ユニットの空気吸込部２１付近に設けら
れている。１２μ吐出ガス温度検出器で圧縮機１の吐出
配管２２ｖｃ密層して取付けられている。１３ｔ′ｉ変
換器で前記室内吸込空気温度検知器１０、室外吸込空気
温度検知器１１および吐出ガス温度検出器１２からの信
号を入力するように信号線で接続されている。Reference numeral 10 denotes an outdoor intake air temperature sensor, which is provided near the air intake section 20 of the indoor unit. There are 11 outdoor intake air temperature detectors installed near the air intake section 21 of the outdoor unit. A 12μ discharge gas temperature detector is installed in the discharge pipe 22vc of the compressor 1 in a dense layer. The indoor suction air temperature sensor 10, the outdoor suction air temperature sensor 11, and the discharge gas temperature sensor 12 are connected by signal lines so that signals from the indoor suction air temperature sensor 10, the outdoor suction air temperature sensor 11, and the discharge gas temperature sensor 12 are inputted to the 13t'i converter.
そして、該変換器１３では前記各検知部分の温度変化に
より各検器の抵抗変化のアナログ信号を電圧電流等のデ
ジタル信号（ＯＮ１０Ｆ’Ｆ）に変化させる。１４は制
ｔｉｌｌ器で電源１５と前記圧縮機１、変換器１３と接
続されている。The converter 13 changes the analog signal of the resistance change of each detector into a digital signal (ON10F'F) such as voltage and current according to the temperature change of each detection part. Reference numeral 14 denotes a tiller, which is connected to a power source 15, the compressor 1, and the converter 13.
而して、冷房運転時は室内吸込空気ｍｔｗ検知器１０お
よび吐出ガス温度検知器１２からの入力信号により変換
器＋３ｖＣて第２図に示す予め設定した正常領域、異常
領域の判定を行い制御器１４へ信号を出力して異常のと
きは圧縮機１の運転を停止するなどの制御を行う。また
、前記変換器１３からの信号が正常領域の場合は運転を
続行させる。運転を停止するときは同時にランプあるい
げブザー等の色、音で異常を表示することができること
は勿論である。During cooling operation, the input signals from the indoor suction air mtw detector 10 and the discharge gas temperature detector 12 are used to determine the preset normal region and abnormal region as shown in FIG. 2 using the converter +3vC, and the controller 14 to perform control such as stopping the operation of the compressor 1 in the event of an abnormality. Further, if the signal from the converter 13 is in the normal range, the operation is continued. Of course, when the operation is stopped, an abnormality can be indicated with a lamp, a buzzer, or other color or sound.
一方、暖房運転時は室外吸込空気温度検知器１１および
吐出ガス温度検知器１２からの入力信号により変換器１
３予め設定した正常領域、異常領域の判定を行う。これ
により、本実施例によれば蒸発器側の吸込空気温度に拘
らず冷凍サイクル内の冷媒ガスの不足状態を検出でき、
機器ＶＣ損傷を与えることなく運転を停止したり、異常
表示を行うことができる。On the other hand, during heating operation, the converter 1 is
3. Determine the normal area and abnormal area set in advance. As a result, according to this embodiment, a shortage of refrigerant gas in the refrigeration cycle can be detected regardless of the suction air temperature on the evaporator side.
It is possible to stop operation or display an abnormality without damaging the equipment VC.
本発明によれば、いかなる条件下においても冷凍サイク
ル中の冷媒ガスの不足状態を検出できるAccording to the present invention, a shortage of refrigerant gas in a refrigeration cycle can be detected under any conditions.
第１図は本発明の一実施例の冷凍サイクル図、第２図は
冷媒量の不足状態を判定するための線図、第３図は従来
方法による冷媒量の不足状態を判定するだめの線図であ
る。
１・・・圧縮機 ２・・・四方弁 ３・・・菫内熱
交換器 ４．５・・・絞り装置 ６．７・・・逆止
弁８・・・室外熱交換器 ９・・・アキュムレータ１
０・・・室内吸込空気温度検知器 １１・・・室外吸
込空気温度検知器 １２・・・吐出ガス温度検出器１
３・・・変換器 １４・・・制御器。
半１の
１）・・・後罎る 隣・・・中１衝局
１３閏
イ嵯φ ←
→径圧舞七ｔオ〉灸口
饋ザスｌｐ【Fig. 1 is a refrigeration cycle diagram of an embodiment of the present invention, Fig. 2 is a line diagram for determining a refrigerant shortage state, and Fig. 3 is a line diagram for determining a refrigerant shortage state according to the conventional method. It is a diagram. 1... Compressor 2... Four-way valve 3... Sumitomo heat exchanger 4.5... Throttle device 6.7... Check valve 8... Outdoor heat exchanger 9... Accumulator 1
0... Indoor suction air temperature detector 11... Outdoor suction air temperature detector 12... Discharge gas temperature detector 1
3...Converter 14...Controller. 1 of half 1)...Back next door...Naka 1st station 13 jump φ ←
→Radio Pressure Dance Sevent O〉Moxibustion Mouth Feed Theasu lp [
Claims (1)
どを配管により接続してなる冷凍サイクルにおいて、前
記室外熱交換器と室内熱交換器の空気吸込部付近に空気
温度検知器を設置し、前記圧縮機の吐出配管に吐出ガス
温度検出器を密着して設け、前記と室内外熱交換器の蒸
発器となる熱交換器の吸込空気温度と吐出ガス温度検知
器からのアナログ信号をデジタル信号に変換する変換器
を設け、該変換器からの信号を受けて前記圧縮機の運転
を制御する制御器を設けたことを特徴とする空気調和機
。In a refrigeration cycle in which a compressor, an outdoor heat exchanger, an indoor heat exchanger, a throttle device, etc. are connected by piping, an air temperature detector is installed near the air suction part of the outdoor heat exchanger and the indoor heat exchanger. A discharge gas temperature detector is installed in close contact with the discharge piping of the compressor, and the analog signals from the suction air temperature and discharge gas temperature detector of the heat exchanger serving as the evaporator of the indoor/outdoor heat exchanger are digitally transmitted. An air conditioner comprising a converter that converts the signal into a signal, and a controller that receives the signal from the converter and controls the operation of the compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175623A JPS6334469A (en) | 1986-07-28 | 1986-07-28 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61175623A JPS6334469A (en) | 1986-07-28 | 1986-07-28 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6334469A true JPS6334469A (en) | 1988-02-15 |
Family
ID=15999323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61175623A Pending JPS6334469A (en) | 1986-07-28 | 1986-07-28 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6334469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214918A (en) * | 1989-12-13 | 1993-06-01 | Hitachi, Ltd. | Refrigerator and method for indicating refrigerant amount |
| WO2018189826A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Refrigeration cycle device |
-
1986
- 1986-07-28 JP JP61175623A patent/JPS6334469A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5214918A (en) * | 1989-12-13 | 1993-06-01 | Hitachi, Ltd. | Refrigerator and method for indicating refrigerant amount |
| WO2018189826A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Refrigeration cycle device |
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