JPS62181858U - - Google Patents
Info
- Publication number
- JPS62181858U JPS62181858U JP6830886U JP6830886U JPS62181858U JP S62181858 U JPS62181858 U JP S62181858U JP 6830886 U JP6830886 U JP 6830886U JP 6830886 U JP6830886 U JP 6830886U JP S62181858 U JPS62181858 U JP S62181858U
- Authority
- JP
- Japan
- Prior art keywords
- expansion valve
- opening degree
- cooling device
- temperature sensor
- calculated value
- 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 6
- 238000001816 cooling Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005057 refrigeration Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例を示す要部説明図、
第２図は、同実施例の作動を示すフローチヤート
、第３図は従来の冷房装置の概念図、第４図は駆
動式電動膨張弁の断面図、第５図は前記冷房装置
の作動を示すフローチヤート、第６図は駆動式電
動膨張弁のヒステリシス特性を示す説明図である
。
１…蒸気圧縮式冷凍サイクル、５…駆動式電動
膨張弁、１４…弁体、１５…入口側冷媒温センサ
、１６…出口側冷媒温センサ、１７，１９…制御
回路、２０…演算回路、２１…比較回路（駆動方
向検出手段）、２２…加算値出力回路（加算補正
手段）。
FIG. 1 is an explanatory diagram of the main parts showing one embodiment of the present invention,
Fig. 2 is a flowchart showing the operation of the same embodiment, Fig. 3 is a conceptual diagram of a conventional cooling device, Fig. 4 is a sectional view of a driven electric expansion valve, and Fig. 5 is a flowchart showing the operation of the cooling device. The flowchart shown in FIG. 6 is an explanatory diagram showing the hysteresis characteristics of the driven electric expansion valve. DESCRIPTION OF SYMBOLS 1... Vapor compression type refrigeration cycle, 5... Drive type electric expansion valve, 14... Valve body, 15... Inlet side refrigerant temperature sensor, 16... Outlet side refrigerant temperature sensor, 17, 19... Control circuit, 20... Arithmetic circuit, 21 ... Comparison circuit (driving direction detection means), 22... Addition value output circuit (addition correction means).
Claims (1)
口側管路に、電気信号によつて弁体を開閉各方向
に駆動する駆動式電動膨張弁を配設する一方、前
記エバポレータの冷媒入口及び出口側管路に冷媒
温センサを配し、該冷媒温センサの検出温に基づ
いて演算を実行し、その演算値に応じた電気信号
を前記膨張弁に出力する制御回路を備えた冷房装
置において、前記弁体の現開度と、該現開度に到
達する直前の前開度とを比較して弁体の開、閉各
駆動方向を検出する駆動方向検出手段を設けると
ともに、該駆動方向検出手段の検出結果に応じて
前記膨張弁の持つヒステリシスに相当する開度を
前記演算値に加算する加算補正手段を設けたこと
を特徴とする冷房装置。 A driven electric expansion valve that opens and closes a valve body in each direction by an electric signal is installed in the evaporator refrigerant inlet line of the vapor compression refrigeration cycle, and a driven electric expansion valve is installed in the refrigerant inlet and outlet line of the evaporator. In the cooling device, the cooling device includes a control circuit that includes a refrigerant temperature sensor, performs calculation based on the temperature detected by the refrigerant temperature sensor, and outputs an electric signal to the expansion valve according to the calculated value. A driving direction detecting means is provided for detecting the opening and closing driving directions of the valve body by comparing the current opening degree and the previous opening degree immediately before reaching the current opening degree, and a detection result of the driving direction detecting means is provided. A cooling device characterized in that an addition correction means is provided for adding an opening degree corresponding to hysteresis of the expansion valve to the calculated value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6830886U JPS62181858U (en) | 1986-05-07 | 1986-05-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6830886U JPS62181858U (en) | 1986-05-07 | 1986-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62181858U true JPS62181858U (en) | 1987-11-18 |
Family
ID=30908001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6830886U Pending JPS62181858U (en) | 1986-05-07 | 1986-05-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62181858U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01266468A (en) * | 1988-04-15 | 1989-10-24 | Sanyo Electric Co Ltd | Refrigerator |
-
1986
- 1986-05-07 JP JP6830886U patent/JPS62181858U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01266468A (en) * | 1988-04-15 | 1989-10-24 | Sanyo Electric Co Ltd | Refrigerator |