CN204241611U - A kind of wiring harness test circuit - Google Patents
A kind of wiring harness test circuit Download PDFInfo
- Publication number
- CN204241611U CN204241611U CN201420781739.6U CN201420781739U CN204241611U CN 204241611 U CN204241611 U CN 204241611U CN 201420781739 U CN201420781739 U CN 201420781739U CN 204241611 U CN204241611 U CN 204241611U
- Authority
- CN
- China
- Prior art keywords
- pin
- singlechip chip
- wiring harness
- circuit
- acquisition circuit
- 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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- Tests Of Electronic Circuits (AREA)
Abstract
The utility model discloses a kind of wiring harness test circuit, its key is: described wiring harness test circuit comprises Acquisition Circuit and communicating circuit; Described Acquisition Circuit is connected with communicating circuit by gathering beam spot, and Acquisition Circuit connects the result of touch screen LCD display wiring harness test; Described Acquisition Circuit comprises singlechip chip IC1; Described communicating circuit comprises control module PIC.In the utility model, the pin pcb board of singlechip chip IC1 is connected to above terminal by Acquisition Circuit part, the terminal wire harness of detected Wiring harness terminal connects, judge whether wire harness connects well according to the level signal on singlechip chip IC1 pin again, and by 485 communication modes, coherent signal is passed to communicating circuit part; Signal is sent to computer display by the control module PIC in communicating circuit, not having the wire harness redness of conducting to point out, as conducting is good, then shows detection and passing through; It is easy to operate, and detection efficiency is high.
Description
Technical field
The utility model relates to a kind of wiring harness test circuit.
Background technology
Whether wiring harness test instrument contacts well mainly for detection of wire harness break-make, and its structure comprises Acquisition Circuit and communicating circuit two parts.Acquisition Circuit part only needs Width funtion direct current 9-18V Power supply just can normally work, and its Main Function utilizes level principle to detect wire harness whether conducting; The effect of communicating circuit part is the value that the transmission of Acquisition Circuit part is come up, and passes to display, and whether conducting is good to make user be convenient to observe wire harness very intuitively.
Utility model content
The purpose of this utility model is to provide a kind of wiring harness test circuit.
To achieve these goals, by the following technical solutions: a kind of wiring harness test circuit, is characterized in that: described wiring harness test circuit comprises Acquisition Circuit and communicating circuit; Described Acquisition Circuit is connected with communicating circuit by gathering beam spot, and Acquisition Circuit connects the result of touch screen LCD display wiring harness test; Described Acquisition Circuit comprises singlechip chip IC1; 1 pin of described singlechip chip IC1,2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 9 pin, 10 pin, 13 pin, 14 pin, 16 pin, 19 pin, 20 pin, 23 pin, 24 pin, 25 pin, 26 pin, 27 pin are connected with the wire harness of detected Wiring harness terminal respectively with 28 pin; 7 pin of described singlechip chip IC1 are communicated with 12 pin with 11 pin of singlechip chip IC1 respectively by after resistance R13; 11 pin of singlechip chip IC1 also connect VCC power end; The 8 pin ground connection of singlechip chip IC1; 15 pin of singlechip chip IC1 and 21 pin common grounds; 17 pin of singlechip chip IC1 are by ground connection after electric capacity C10, and this 17 pin also connects VCC power end by resistance R14; 18 pin of singlechip chip IC1 are connected VCC power end jointly with 22 pin, and this 18 pin and 22 pin are also jointly by ground connection after electric capacity C11; Described communicating circuit comprises control module PIC; 1 pin to 7 pin of described control module PIC, 9 pin to 18 pin and 21 pin to 28 pin all connect the Wiring harness terminal signal that Acquisition Circuit obtains; 8 pin of control module PIC and 19 pin common grounds; 20 pin of control module PIC connect VCC power end, and this 20 pin is also by ground connection after electric capacity C59.
The model of described singlechip chip IC1 is SJA1000.
The model of described control module PIC is PIC16C73-10/JW (28).
In the utility model, the pin pcb board of singlechip chip IC1 is connected to above terminal by Acquisition Circuit part, the terminal wire harness of detected Wiring harness terminal connects, judge whether wire harness connects well according to the level signal on singlechip chip IC1 pin again, and by 485 communication modes, coherent signal is passed to communicating circuit part; Signal is sent to computer display by the control module PIC in communicating circuit, not having the wire harness redness of conducting to point out, as conducting is good, then shows detection and passing through; It is easy to operate, and detection efficiency is high.
Accompanying drawing explanation
Fig. 1 is the Acquisition Circuit structural drawing in the utility model embodiment;
Fig. 2 is the communicating circuit structural drawing in the utility model embodiment.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As depicted in figs. 1 and 2, a kind of wiring harness test circuit, comprises Acquisition Circuit and communicating circuit; Described Acquisition Circuit is connected with communicating circuit by gathering beam spot, and Acquisition Circuit connects the result of touch screen LCD display wiring harness test; Described Acquisition Circuit comprises singlechip chip IC1; 1 pin of described singlechip chip IC1,2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 9 pin, 10 pin, 13 pin, 14 pin, 16 pin, 19 pin, 20 pin, 23 pin, 24 pin, 25 pin, 26 pin, 27 pin are connected with the wire harness of detected Wiring harness terminal respectively with 28 pin; 7 pin of described singlechip chip IC1 are communicated with 12 pin with 11 pin of singlechip chip IC1 respectively by after resistance R13; 11 pin of singlechip chip IC1 also connect VCC power end; The 8 pin ground connection of singlechip chip IC1; 15 pin of singlechip chip IC1 and 21 pin common grounds; 17 pin of singlechip chip IC1 are by ground connection after electric capacity C10, and this 17 pin also connects VCC power end by resistance R14; 18 pin of singlechip chip IC1 are connected VCC power end jointly with 22 pin, and this 18 pin and 22 pin are also jointly by ground connection after electric capacity C11; Described communicating circuit comprises control module PIC; 1 pin to 7 pin of described control module PIC, 9 pin to 18 pin and 21 pin to 28 pin all connect the Wiring harness terminal signal that Acquisition Circuit obtains; 8 pin of control module PIC and 19 pin common grounds; 20 pin of control module PIC connect VCC power end, and this 20 pin is also by ground connection after electric capacity C59.
The model of described singlechip chip IC1 is SJA1000.
The model of described control module PIC is PIC16C73-10/JW (28).
In the utility model, the pin pcb board of singlechip chip IC1 is connected to above terminal by Acquisition Circuit part, the terminal wire harness of detected Wiring harness terminal connects, judge whether wire harness connects well according to the level signal on singlechip chip IC1 pin again, and by 485 communication modes, coherent signal is passed to communicating circuit part; Signal is sent to computer display by the control module PIC in communicating circuit, not having the wire harness redness of conducting to point out, as conducting is good, then shows detection and passing through; It is easy to operate, and detection efficiency is high.
Claims (2)
1. a wiring harness test circuit, is characterized in that: described wiring harness test circuit comprises Acquisition Circuit and communicating circuit; Described Acquisition Circuit is connected with communicating circuit by gathering beam spot, and Acquisition Circuit connects the result of touch screen LCD display wiring harness test; Described Acquisition Circuit comprises singlechip chip IC1; 1 pin of described singlechip chip IC1,2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 9 pin, 10 pin, 13 pin, 14 pin, 16 pin, 19 pin, 20 pin, 23 pin, 24 pin, 25 pin, 26 pin, 27 pin are connected with the wire harness of detected Wiring harness terminal respectively with 28 pin; 7 pin of described singlechip chip IC1 are communicated with 12 pin with 11 pin of singlechip chip IC1 respectively by after resistance R13; 11 pin of singlechip chip IC1 also connect VCC power end; The 8 pin ground connection of singlechip chip IC1; 15 pin of singlechip chip IC1 and 21 pin common grounds; 17 pin of singlechip chip IC1 are by ground connection after electric capacity C10, and this 17 pin also connects VCC power end by resistance R14; 18 pin of singlechip chip IC1 are connected VCC power end jointly with 22 pin, and this 18 pin and 22 pin are also jointly by ground connection after electric capacity C11; Described communicating circuit comprises control module PIC; 1 pin to 7 pin of described control module PIC, 9 pin to 18 pin and 21 pin to 28 pin all connect the Wiring harness terminal signal that Acquisition Circuit obtains; 8 pin of control module PIC and 19 pin common grounds; 20 pin of control module PIC connect VCC power end, and this 20 pin is also by ground connection after electric capacity C59.
2. wiring harness test circuit as claimed in claim 1, is characterized in that: the model of described singlechip chip IC1 is SJA1000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781739.6U CN204241611U (en) | 2014-12-12 | 2014-12-12 | A kind of wiring harness test circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781739.6U CN204241611U (en) | 2014-12-12 | 2014-12-12 | A kind of wiring harness test circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241611U true CN204241611U (en) | 2015-04-01 |
Family
ID=52771092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781739.6U Expired - Fee Related CN204241611U (en) | 2014-12-12 | 2014-12-12 | A kind of wiring harness test circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391218A (en) * | 2014-12-12 | 2015-03-04 | 重庆和平自动化工程股份有限公司 | Wire harness detection circuit |
-
2014
- 2014-12-12 CN CN201420781739.6U patent/CN204241611U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104391218A (en) * | 2014-12-12 | 2015-03-04 | 重庆和平自动化工程股份有限公司 | Wire harness detection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |