JPH0373870U - - Google Patents
Info
- Publication number
- JPH0373870U JPH0373870U JP13544689U JP13544689U JPH0373870U JP H0373870 U JPH0373870 U JP H0373870U JP 13544689 U JP13544689 U JP 13544689U JP 13544689 U JP13544689 U JP 13544689U JP H0373870 U JPH0373870 U JP H0373870U
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant temperature
- calculation
- temperature detection
- opening
- deviation
- 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 description 12
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000002123 temporal effect Effects 0.000 description 2
Landscapes
- Air-Conditioning For Vehicles (AREA)
- Temperature-Responsive Valves (AREA)
Description
第１図は本考案に係る冷凍サイクルの冷媒流量
制御装置の機能ブロツク図、第２図は本装置の一
実施例を示す構成図、第３図ａ，ｂは本考案の実
施例に用いられるマイクロコンピユータによる制
御ルーチンを示すフローチヤート、第４図ａは本
装置と従来装置における弁開度及び騒音の時間的
変化を示す特性線図、第４図ｂは本装置と従来装
置における過熱度及び吹出し温度の時間的変化を
示す特性線図である。
４…膨張弁、７…第１の冷媒温度センサ、８…
第２の冷媒温度センサ、１３ａ，１３ｂ…駆動回
路、１００…入口冷媒温度検出手段、１１０…出
口冷媒温度検出手段、１２０…偏差演算手段、１
３０…開度演算手段、１４０…係数変更手段、１
５０…駆動手段。
Fig. 1 is a functional block diagram of a refrigerant flow rate control device for a refrigeration cycle according to the present invention, Fig. 2 is a configuration diagram showing an embodiment of this device, and Figs. 3 a and b are used in an embodiment of the present invention. A flowchart showing a control routine by a microcomputer, Fig. 4a is a characteristic diagram showing temporal changes in valve opening degree and noise in this device and a conventional device, and Fig. 4b is a characteristic diagram showing the degree of superheating and changes in noise in this device and a conventional device. FIG. 3 is a characteristic diagram showing temporal changes in blowout temperature. 4... Expansion valve, 7... First refrigerant temperature sensor, 8...
Second refrigerant temperature sensor, 13a, 13b... Drive circuit, 100... Inlet refrigerant temperature detection means, 110... Outlet refrigerant temperature detection means, 120... Deviation calculation means, 1
30...Opening degree calculating means, 140...Coefficient changing means, 1
50...Driving means.
Claims (1)
温度を検出する入口冷媒温度検出手段と、 前記蒸発器の出口側の冷媒温度を検出する出口
冷媒温度検出手段と、 前記入口冷媒温度検出手段の検出値と前記出口
冷媒温度検出手段の検出値に基づいて目標過熱度
の実際の過熱度との偏差を演算する偏差演算手段
と、 前記偏差演算手段の演算結果に基づいて膨張弁
の弁開度を演算する開度演算手段と、 前記開度演算手段における演算に用いられる演
算係数を圧縮機の起動初期とその後とで変更する
係数変更手段と、 前記開度演算手段の演算結果に基づいて前記膨
張弁を駆動する駆動手段とを具備したことを特徴
とする冷凍サイクルの冷媒流量制御装置。[Claims for Utility Model Registration] An inlet refrigerant temperature detection means for detecting the refrigerant temperature on the inlet side of an evaporator constituting a refrigeration cycle; an outlet refrigerant temperature detection means for detecting the refrigerant temperature on the outlet side of the evaporator; a deviation calculation means for calculating a deviation between a target degree of superheat and an actual degree of superheat based on the detection value of the inlet refrigerant temperature detection means and the detection value of the outlet refrigerant temperature detection means; and based on the calculation result of the deviation calculation means. opening calculation means for calculating the valve opening of the expansion valve; coefficient changing means for changing a calculation coefficient used for calculation in the opening calculation means between the initial stage of starting the compressor and after the start-up of the compressor; and the opening calculation means A refrigerant flow rate control device for a refrigeration cycle, comprising: a drive means for driving the expansion valve based on a calculation result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13544689U JPH0373870U (en) | 1989-11-22 | 1989-11-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13544689U JPH0373870U (en) | 1989-11-22 | 1989-11-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0373870U true JPH0373870U (en) | 1991-07-25 |
Family
ID=31682714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13544689U Pending JPH0373870U (en) | 1989-11-22 | 1989-11-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0373870U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178254A (en) * | 1984-02-27 | 1985-09-12 | 株式会社日立製作所 | Method of controlling air conditioner |
| JPS61116255A (en) * | 1984-11-13 | 1986-06-03 | 株式会社ボッシュオートモーティブ システム | Method and device for controlling flow rate of refrigerant |
-
1989
- 1989-11-22 JP JP13544689U patent/JPH0373870U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60178254A (en) * | 1984-02-27 | 1985-09-12 | 株式会社日立製作所 | Method of controlling air conditioner |
| JPS61116255A (en) * | 1984-11-13 | 1986-06-03 | 株式会社ボッシュオートモーティブ システム | Method and device for controlling flow rate of refrigerant |