JPS59123274U - Vehicle cooling cycle protection device - Google Patents
Vehicle cooling cycle protection deviceInfo
- Publication number
- JPS59123274U JPS59123274U JP1723783U JP1723783U JPS59123274U JP S59123274 U JPS59123274 U JP S59123274U JP 1723783 U JP1723783 U JP 1723783U JP 1723783 U JP1723783 U JP 1723783U JP S59123274 U JPS59123274 U JP S59123274U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- cooling cycle
- low pressure
- protection device
- compressor
- 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
Landscapes
- Air-Conditioning For Vehicles (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案による車両用冷房サイクルの保護装置の
概要を説明するための特性図、第２図、第３図は本考案
による車両用冷房サイクルの保護装置の一実施例を示す
回路図及び断面図、第４図、第５図は動作を説明するタ
イムチャートである。
１・・・・・・負圧検出スイッチ、２・・曲コンプレッ
サ、９・・・・・・冷媒ガス室、１０・・・・・・大気
圧室、１１・・・・・・ダイヤフラム、２３・・・・、
・・比較器、３３・・・・・・マグネットクラッチ。
−
チゴ］−−−−
１１２，１ノ
↓ ↓ や。
□■−−−−
□ ↓
ＭFIG. 1 is a characteristic diagram for explaining the outline of the vehicle cooling cycle protection device according to the present invention, and FIGS. 2 and 3 are circuit diagrams showing an embodiment of the vehicle cooling cycle protection device according to the present invention. 4 and 5 are time charts for explaining the operation. 1... Negative pressure detection switch, 2... Bent compressor, 9... Refrigerant gas chamber, 10... Atmospheric pressure chamber, 11... Diaphragm, 23 ...,
...Comparator, 33...Magnetic clutch.
- Chigo] ----- 112,1ノ↓ ↓ Ya. □■－－－－ □ ↓ M
Claims (1)
は低圧側配管の冷媒ガスの圧力と 大気圧力との差を検
出する負圧検出手段と、上記負圧検出手段からの信号と
基準レベルとを比較し上記コンプレッサの低圧室または
低圧側配管の冷媒ガスの圧力が低下して低圧レベルＰ□
に達してから設定時間以内において上記圧力が設定圧力
ｐ４まで上昇しない時にコンプレッサを停止するかまた
は警報を発する比較制御手段とからなることを特徴とす
る車両用冷房サイクルの保護装置。Negative pressure detection means detects the difference between the pressure of refrigerant gas in the low pressure chamber side of the compressor that makes up the cooling cycle or the low pressure side piping and atmospheric pressure, and the signal from the negative pressure detection means is compared with a reference level. The pressure of the refrigerant gas in the low pressure chamber or low pressure side piping of the above compressor decreases to a low pressure level P□
A protection device for a cooling cycle for a vehicle, comprising a comparison control means for stopping a compressor or issuing an alarm when the pressure does not rise to a set pressure p4 within a set time after reaching p4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1723783U JPS59123274U (en) | 1983-02-08 | 1983-02-08 | Vehicle cooling cycle protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1723783U JPS59123274U (en) | 1983-02-08 | 1983-02-08 | Vehicle cooling cycle protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59123274U true JPS59123274U (en) | 1984-08-20 |
Family
ID=30148467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1723783U Pending JPS59123274U (en) | 1983-02-08 | 1983-02-08 | Vehicle cooling cycle protection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59123274U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511942B1 (en) * | 1964-04-16 | 1976-01-21 | ||
| JPS57196064A (en) * | 1981-05-27 | 1982-12-01 | Nihon Radiator Co | Safety device for air conditioner |
-
1983
- 1983-02-08 JP JP1723783U patent/JPS59123274U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS511942B1 (en) * | 1964-04-16 | 1976-01-21 | ||
| JPS57196064A (en) * | 1981-05-27 | 1982-12-01 | Nihon Radiator Co | Safety device for air conditioner |
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