JPS62203170U - - Google Patents
Info
- Publication number
- JPS62203170U JPS62203170U JP9157086U JP9157086U JPS62203170U JP S62203170 U JPS62203170 U JP S62203170U JP 9157086 U JP9157086 U JP 9157086U JP 9157086 U JP9157086 U JP 9157086U JP S62203170 U JPS62203170 U JP S62203170U
- Authority
- JP
- Japan
- Prior art keywords
- oil temperature
- hydraulic elevator
- thermistor
- detection device
- comparison
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Types And Forms Of Lifts (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Description
第１図はこの考案の一実施例による油圧エレベ
ータの油温検出装置の回路図、第２図は従来の油
圧エレベータの油温検出装置の回路図である。
図において、１は油タンク、２は油温センサ、
２ａはサーミスタ、３はＤ／Ａコンバータ、４は
比較回路、５は中央処理装置。
FIG. 1 is a circuit diagram of an oil temperature detection device for a hydraulic elevator according to an embodiment of this invention, and FIG. 2 is a circuit diagram of a conventional oil temperature detection device for a hydraulic elevator. In the figure, 1 is an oil tank, 2 is an oil temperature sensor,
2a is a thermistor, 3 is a D/A converter, 4 is a comparison circuit, and 5 is a central processing unit.
Claims (1)
検出し、該センサ出力値より油温が予め設定され
た油温度に対して高温変動か低温変動かを比較判
定し判定信号を出力する比較判定手段を備えた油
圧エレベータの油温検出装置において、上記比較
判定手段より一定値の判定信号が一定時間以上継
続出力していることを判断し異常信号を出力する
異常判断手段と、該異常信号により油圧エレベー
タを安全運転に切り換える制御手段とを備えたこ
とを特徴とする油圧エレベータの油温検出装置。 (2) 上記温度センサはサーミスタを使用しかつ
上記比較判定手段はサーミスタの端子電圧と所定
の設定値とを比較するコンパレータとを使用する
ことを特徴とする実用新案登録請求の範囲第１項
記載の油圧エレベータの油温検出装置。 (3) 上記温度センサはサーミスタを使用しかつ
上記比較判定手段はこのサーミスタの端子電圧を
デイジタル信号に変換するＡ―Ｄ変換器を使用す
ることを特徴とする実用新案登録請求の範囲第１
項記載の油圧エレベータの油温検出装置。[Scope of Claim for Utility Model Registration] (1) The oil temperature of a hydraulic elevator is detected by a temperature sensor, and the output value of the sensor is used to compare and determine whether the oil temperature fluctuates at a high temperature or a low temperature with respect to a preset oil temperature. In an oil temperature detection device for a hydraulic elevator equipped with a comparison and determination means for outputting a determination signal, an abnormality determination is made in which it is determined by the comparison and determination means that a determination signal of a certain value is continuously output for a certain period of time or more, and an abnormality signal is output. 1. An oil temperature detection device for a hydraulic elevator, comprising: means for detecting an oil temperature; and a control means for switching the hydraulic elevator to safe operation based on the abnormality signal. (2) The above-mentioned temperature sensor uses a thermistor, and the comparison/judgment means uses a comparator that compares the terminal voltage of the thermistor with a predetermined set value, as described in claim 1 of the utility model registration claim. Oil temperature detection device for hydraulic elevators. (3) Utility model registration claim 1, characterized in that the temperature sensor uses a thermistor, and the comparison/judgment means uses an AD converter that converts the terminal voltage of the thermistor into a digital signal.
An oil temperature detection device for a hydraulic elevator as described in .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157086U JPS62203170U (en) | 1986-06-16 | 1986-06-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9157086U JPS62203170U (en) | 1986-06-16 | 1986-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62203170U true JPS62203170U (en) | 1987-12-25 |
Family
ID=30952476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9157086U Pending JPS62203170U (en) | 1986-06-16 | 1986-06-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62203170U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107051A (en) * | 1978-02-10 | 1979-08-22 | Hitachi Ltd | Hydraulic elevator controller |
-
1986
- 1986-06-16 JP JP9157086U patent/JPS62203170U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107051A (en) * | 1978-02-10 | 1979-08-22 | Hitachi Ltd | Hydraulic elevator controller |
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