JPS5478490A - Loose contact detector - Google Patents
Loose contact detectorInfo
- Publication number
- JPS5478490A JPS5478490A JP14591777A JP14591777A JPS5478490A JP S5478490 A JPS5478490 A JP S5478490A JP 14591777 A JP14591777 A JP 14591777A JP 14591777 A JP14591777 A JP 14591777A JP S5478490 A JPS5478490 A JP S5478490A
- Authority
- JP
- Japan
- Prior art keywords
- loose contact
- circuit
- display unit
- contact
- checked
- 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
Abstract
PURPOSE: To easily detect a loose contact, by maintaining the temporary wrong contact of a checked circuit and displaying the wrong contact.
CONSTITUTION: When wire snapping or loose contact occurs in the checked circuit 1, a flip-flop 2 is set through an AND circuit 7 and kept set thereafter. The output of a NAND circuit 6 is maintained at a low level and a display unit 3 is put in an operating state, for example, a luminous state. Then, when a switch 4 is pressed, the display unit 3 is put out of the luminous state. However, as long as the loose contact of the checked circuit 1 is not repaired, the display unit 3 repeatedly operates whenever a loose contact takes place.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14591777A JPS5478490A (en) | 1977-12-05 | 1977-12-05 | Loose contact detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14591777A JPS5478490A (en) | 1977-12-05 | 1977-12-05 | Loose contact detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5478490A true JPS5478490A (en) | 1979-06-22 |
Family
ID=15396054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14591777A Pending JPS5478490A (en) | 1977-12-05 | 1977-12-05 | Loose contact detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5478490A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59124371U (en) * | 1983-02-12 | 1984-08-21 | アンリツ株式会社 | Loose contact checker |
CN110473390A (en) * | 2019-09-17 | 2019-11-19 | 京能源深(苏州)能源科技有限公司 | Photovoltaic power generation plate loose alarming method |
-
1977
- 1977-12-05 JP JP14591777A patent/JPS5478490A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59124371U (en) * | 1983-02-12 | 1984-08-21 | アンリツ株式会社 | Loose contact checker |
JPH0351751Y2 (en) * | 1983-02-12 | 1991-11-07 | ||
CN110473390A (en) * | 2019-09-17 | 2019-11-19 | 京能源深(苏州)能源科技有限公司 | Photovoltaic power generation plate loose alarming method |
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