JPH01172680U - - Google Patents
Info
- Publication number
- JPH01172680U JPH01172680U JP6923588U JP6923588U JPH01172680U JP H01172680 U JPH01172680 U JP H01172680U JP 6923588 U JP6923588 U JP 6923588U JP 6923588 U JP6923588 U JP 6923588U JP H01172680 U JPH01172680 U JP H01172680U
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant pressure
- refrigerant
- points
- pressure loss
- detection means
- 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 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は、本考案の構成を示すブロツク図、第
２図は、本考案の一実施例に係るコンプレツサの
保護装置を示す概略構成図、第３図は、同実施例
の作用の説明に供するグラフ、第４図は、一般的
な自動車用冷房サイクル及び従来のコンプレツサ
の保護装置を示す概略構成図である。
１……冷房サイクル、３……マグネツトクラツ
チ、４……コンプレツサ、８……エバポレータ、
１２……ダイヤフラム、１４ａ……上部室、１４
ｂ……下部室、１７……接点、１８……コイル、
２０……冷媒圧力検知手段、２１……圧力損失演
算手段、２２……比較手段、２３……クラツチ制
御手段。
Fig. 1 is a block diagram showing the configuration of the present invention, Fig. 2 is a schematic block diagram showing a compressor protection device according to an embodiment of the invention, and Fig. 3 is an explanation of the operation of the same embodiment. The graph provided in FIG. 4 is a schematic diagram showing a general automotive cooling cycle and a conventional compressor protection device. 1... Cooling cycle, 3... Magnetic clutch, 4... Compressor, 8... Evaporator,
12...Diaphragm, 14a...Upper chamber, 14
b...lower chamber, 17...contact, 18...coil,
20... Refrigerant pressure detection means, 21... Pressure loss calculation means, 22... Comparison means, 23... Clutch control means.
Claims (1)
おいて、前記冷房サイクル１を構成する各機器を
接続するいずれかの冷媒配管１６中の２点Ａ，Ｂ
における冷媒圧力を検知する冷媒圧力検知手段２
０と、 当該冷媒圧力検知手段２０で検知した冷媒圧力
に基づいて前記２点Ａ，Ｂ間の圧力損失を演算す
る圧力損失演算手段２１と、 当該圧力損失演算手段２１で演算した圧力損失
が所定値ｄＰｏ以上かどうかを比較する比較手段
２２と、 この比較手段２２からの出力信号に応じて前記
コンプレツサの駆動停止を制御するクラツチ制御
手段２３とを有することを特徴とするコンプレツ
サの保護装置。[Claims for Utility Model Registration] In the compressor 4 provided in the cooling cycle 1, two points A and B in any one of the refrigerant pipes 16 connecting each device constituting the cooling cycle 1
Refrigerant pressure detection means 2 for detecting refrigerant pressure at
0, a pressure loss calculation means 21 that calculates the pressure loss between the two points A and B based on the refrigerant pressure detected by the refrigerant pressure detection means 20, and a pressure loss calculation means 21 that calculates the pressure loss between the two points A and B based on the refrigerant pressure detected by the refrigerant pressure detection means 20; A compressor protection device characterized by comprising a comparison means 22 for comparing whether or not the value is greater than or equal to a value dPo, and a clutch control means 23 for controlling drive stop of the compressor according to an output signal from the comparison means 22.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6923588U JPH01172680U (en) | 1988-05-27 | 1988-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6923588U JPH01172680U (en) | 1988-05-27 | 1988-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172680U true JPH01172680U (en) | 1989-12-07 |
Family
ID=31294518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6923588U Pending JPH01172680U (en) | 1988-05-27 | 1988-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172680U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017137703A (en) * | 2016-02-04 | 2017-08-10 | ケミカルグラウト株式会社 | Ground freezing method |
-
1988
- 1988-05-27 JP JP6923588U patent/JPH01172680U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017137703A (en) * | 2016-02-04 | 2017-08-10 | ケミカルグラウト株式会社 | Ground freezing method |
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