CN202141771U - Circuit for detecting connection reliability of connector - Google Patents
Circuit for detecting connection reliability of connector Download PDFInfo
- Publication number
- CN202141771U CN202141771U CN201120138411U CN201120138411U CN202141771U CN 202141771 U CN202141771 U CN 202141771U CN 201120138411 U CN201120138411 U CN 201120138411U CN 201120138411 U CN201120138411 U CN 201120138411U CN 202141771 U CN202141771 U CN 202141771U
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- China
- Prior art keywords
- circuit
- triode
- connector
- connects
- connectors
- 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.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model provides a circuit for detecting connection reliability of connectors. The circuit includes triode. The triode is supplied with power by a voltage source. And the triode outputs high level signals when receiving a high level while outputs low level signals when receiving a low level. In the utility model, whether the connection among connectors is reliable or not can be determined by judging output signals of the circuit for detecting the connection reliability of the connectors. The detection is simple, and the circuit for detecting the connection reliability of the connectors is suitable for detection among various connectors.
Description
Technical field
The utility model relates to testing circuit, relates in particular to detect the reliable circuit that connects of plug connector, also relates to having this circuit control system.
Background technology
Along with the development of modern control technology, various device more and more tends to modularization, and integrated direction develops, and between module and the module, the direct interactive communication of each function sub-modules in the module, control are also more and more and complicated.Mutual between the module, the form with connector that will consider connects.The widespread use of connector, one side is the control technology of optimization system to a great extent, and the aspect module is directly communicated by letter, and the overall performance of elevator system is being undertaken immeasurable effect in the modern control system product.On the other hand, because a large amount of uses of connector bring certain problem also for the reliability of total system.For example in transit vibration makes that connector is loosening, the maloperation of installation personnel is the location dislocation of connector, the tenure of use and the replacing in time etc. that exceed connector itself; Connector can not reliably be connected, and possibly make problems such as occurring control is unreasonable, short circuit, outage when moving in system.But whether prior art can't effectively detect reliably connecting between plug connector.
Summary of the invention
The problem that the utility model solves is whether prior art can't to reliably connecting the problem that effectively detects between plug connector.
For addressing the above problem, a kind of circuit that detects reliable connection between plug connector of the utility model comprises triode, and this triode is by voltage fed, and high level signal is exported in conducting when accepting high level, when accepting low level, ends the output low level signal.
Alternatively, the reliable circuit that connects also comprises filtering circuit between said detection plug connector, and this filtering circuit is connected the output terminal of triode, and the output signal of triode is filtered.
Alternatively, said filtering circuit is the RC filtering circuit.
Alternatively, the reliable circuit that connects also comprises pull-down circuit between said detection plug connector, and this pull-down circuit is connected the output terminal of triode.
Alternatively, said pull-down circuit is a resistance.
Compared with prior art, the utlity model has following advantage:
The utility model only need can judge between plug connector whether reliably connect through the output signal of judging the reliable circuit that connects of detection plug connector, detects simply, is fit to the detection between various plug connectors.
The utility model also comprises pull-down circuit, and the voltage of this pull-down circuit drop-down triode when the triode conducting is to ground, and drop-down output end voltage has not only been protected triode to ground when triode ends, and, guaranteed the accuracy that detects.
Description of drawings
Fig. 1 is the circuit diagram that the utility model detects the reliable circuit that connects between plug connector;
Fig. 2 is the synoptic diagram that each control module connects.
Embodiment
In order to make the technical scheme of the utility model more clear and easy to understand, following special case is lifted embodiment and is cooperated diagram to explain.
As shown in Figure 1; The circuit that the utility model detects reliable connection between plug connector comprises the isolating chip IC1 with triode; The voltage source of this triode is the voltage source V 2 of isolating chip IC1 just, and the input signal of triode is by the input end input of isolating chip IC1.Filtering circuit is the RC filtering circuit that is made up of resistance R 1 and capacitor C 1; One end of resistance R 1 connects the output terminal (output terminal of isolating chip IC1 just) of triode; The other end is as the output terminal that detects the reliable circuit that connects between plug connector; This end also is connected with capacitor C 1, capacitor C 1 an other end ground connection.Pull-down circuit is pull down resistor R2 in the present embodiment, and this pull down resistor R2 one end connects the output terminal of triode, an other end ground connection.
As depicted in figs. 1 and 2, Fig. 2 is that each module of the system that is made up of a plurality of modules connects synoptic diagram, in the figure; Total A, B, C; D; Totally 5 plugboards of E plate is formed total systems, and the interface JP2 of A plugboard is connected by connector with the interface JP1 of E plugboard, and the interface JP3 of A plugboard is connected by connector with the interface JP4 of B plugboard; The interface JP7 of A plugboard is connected by connector with the interface JP8 of B plugboard, is connected by connector between the interface JP5 of B plugboard and the interface JP6 of C plugboard.In order to detect the reliable connection of these 8 connectors, provide voltage signal by analog power V1 after, (setting same reliable connection of other positions that the dotted line place reliably connects the same plug-in unit of interval scale) voltage is got back to check point Link_ok after flowing through a loop between each connector; The connected mode of the loop shown in the figure and not exclusive only needs during loop design each connector is all detected at once, and concrete embodiment can be at random, after all connectors all reliably connect; It is high that the voltage that Link_ok is ordered should be, Link_ok is inserted among the isolating chip IC1, and the conducting of utmost point pipe, thus make the voltage of resistance R 2 ends be height; Behind the filtering circuit of forming by R1 and C1, provide the detection mouth that high level is given digit chip, at this moment, the voltage of resistance R 2 drop-down triodes; The protection triode, on the contrary one or more plug receptacle is unreliable to be connected when connector has; Then the Link_ok voltage of ordering is low level, thereby triode can not conducting, and the voltage that makes digit chip detect mouthful is low; At this moment, the voltage of the drop-down Vout of pull down resistor R2 is to ground voltage, thereby; Guarantee that output is always low level when not having reliable the connection, accuracy of detection is high.Thus, only need to judge and should detect a mouthful voltage, just can know whether connector reliably connects, and reliably connects during for high voltage, otherwise, unreliable connection.Thereby the electric circuit inspection that whether reliably connects between the detection plug connector of the utility model is simple, be applicable to the detection between various plug connectors.
Claims (4)
1. one kind is detected the reliable circuit that connects of plug connector, it is characterized in that, comprises triode, and this triode is by voltage fed, filtering circuit, and this filtering circuit is connected the output terminal of triode, and the output signal of triode is filtered.
2. the reliable circuit that connects of detection plug connector as claimed in claim 1 is characterized in that said filtering circuit is the RC filtering circuit.
3. the reliable circuit that connects of detection plug connector as claimed in claim 1 is characterized in that also comprise pull-down circuit, this pull-down circuit is connected the output terminal of triode.
4. the reliable circuit that connects of detection plug connector as claimed in claim 3 is characterized in that said pull-down circuit is a resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138411U CN202141771U (en) | 2011-04-29 | 2011-04-29 | Circuit for detecting connection reliability of connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120138411U CN202141771U (en) | 2011-04-29 | 2011-04-29 | Circuit for detecting connection reliability of connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202141771U true CN202141771U (en) | 2012-02-08 |
Family
ID=45552826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120138411U Expired - Fee Related CN202141771U (en) | 2011-04-29 | 2011-04-29 | Circuit for detecting connection reliability of connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202141771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897079A (en) * | 2015-05-25 | 2015-09-09 | 杨志强 | Video detection method for wire harness connector and system employing same |
| CN113406538A (en) * | 2021-06-22 | 2021-09-17 | 珠海拓芯科技有限公司 | Expansion valve connection detection circuit, detection method and air conditioner |
-
2011
- 2011-04-29 CN CN201120138411U patent/CN202141771U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897079A (en) * | 2015-05-25 | 2015-09-09 | 杨志强 | Video detection method for wire harness connector and system employing same |
| CN104897079B (en) * | 2015-05-25 | 2017-09-29 | 杨志强 | Wire harness connector video detecting method and the system using this method |
| CN113406538A (en) * | 2021-06-22 | 2021-09-17 | 珠海拓芯科技有限公司 | Expansion valve connection detection circuit, detection method and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG JEC NEW ENERGY TECHNOLOGY CO., LTD. Assignor: China Electronic Technology Group Corporation No.36 Research Institute Contract record no.: 2015330000200 Denomination of utility model: Circuit for detecting connection reliability of connector Granted publication date: 20120208 License type: Exclusive License Record date: 20150715 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120208 Termination date: 20170429 |