CN201096858Y - A wiring harness detection table - Google Patents
A wiring harness detection table Download PDFInfo
- Publication number
- CN201096858Y CN201096858Y CNU2007200462171U CN200720046217U CN201096858Y CN 201096858 Y CN201096858 Y CN 201096858Y CN U2007200462171 U CNU2007200462171 U CN U2007200462171U CN 200720046217 U CN200720046217 U CN 200720046217U CN 201096858 Y CN201096858 Y CN 201096858Y
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- triode
- wire harness
- harness
- collector
- diode
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Abstract
The utility model discloses a harness test table, which comprises a testing device. The harness test table is characterized in that a positioning block connected with a harness jacket and a harness socket connector is arranged on the testing device; a harness forms a harness test loop through a logical control circuit. Because of the adoption of the structure, the single-phase on state characteristic of the diode, the switching characteristic of the triode and the input and output loading characteristic, a photoelectric coupler is adopted to ensure the input signal and the output signal to be separated and the electric signal transmission to have unidirectivity, an automatic alarm system is applied in the equipment to manufacture the testing device, to ensure the harness to form a loop with the equipment. The test system has the advantages that the structure is simple, the operation is convenient, the measuring point is easy to be expanded, the interference immunity is good, the versatility is strong, and the cost is low. The harness test table is suitable for the harness performance testing in the situations such as household electric appliances, vehicles and military instruments and equipment, etc.
Description
Technical field
The claimed technical scheme of the utility model relates to a kind of wire harness monitor station.
Background technology
Wire harness is normally banded together by specific trend, connection by the lead more than two or two, it mainly plays a part to connect each electronic unit in product, and open circuit and short circuit open fault that the fault of wire harness is mainly between the lead cause electric equipment out of control; Short trouble can damage electric equipment or produce wrong operation and demonstration, so the quality of wire harness quality directly has influence on the overall performance and the running status of product, therefore the finished product wire harness being carried out quality testing seems and is even more important, at present, the means that detect the wire harness conducting are also quite backward, can not satisfy household electrical appliance to communication apparatus, and occasions such as automobile, military equipment equipment are to the requirement of wire harness Performance Detection.The connectedness of wire harness has three layers of implication, and the one, the end to end of lead is answered conducting, and the resistance of conducting should be in allowed limits; The 2nd, the trend of lead should meet technical requirement; The 3rd, model of lead two ends institute crimp type terminal (or not crimp type terminal) and the sheath that uses should meet technical requirement.Hence one can see that, finish the test to wire harness, and the lead that there is failure of connectivity in each must be found and accurately locate to the wire harness test macro.
At present, adopt hand inspection wire harness wire size wrong or detect wire harness with simple device such as multimeter and whether break to wire harness, can only detect by workman's skill level or with eye-observation like this, speed is slow, efficient is low, workman's fatiguability causes false retrieval or omission also very easily, can't detect the wrong wire distribution failure mode.Domestic do not have the better checkout equipment of wire harness syndrome check, and the checkout equipment price of import expensive, write the detection level complexity, use inconvenient.
The utility model content
Technical problem to be solved in the utility model is, provides a kind of simple in structure, easy to operate, measures accurately the wire harness monitor station that anti-interference is good.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of wire harness monitor station comprises test fixture, it is characterized in that, described test fixture is provided with the locating piece that is connected with the wire harness connector with the wire harness sheath; Described wire harness constitutes the wire harness test loop by logic control circuit.
A kind of wire harness monitor station, described logic control circuit comprises triode (V2, V3, V4, V5), diode (D1, D2), resistance (R1, R2, R3, R4, R5), electric capacity (C1, C2, C3), relay J is formed, the base stage of triode V2 links to each other with described locating piece A point by resistance R 1, collector is respectively by resistance (R3, R4) and resistance R 2 and triode V4, the base stage of triode V3 is connected, the collector of triode V4 is by diode D1 ground connection, the collector of triode V3 is connected with the base stage of triode V5, the collector of triode V5 is by diode D2, relay J coil ground connection, its emitter is connected with the emitter of triode V4, the base stage of triode V2 is by capacitor C 1 ground connection, triode (V4, V5) collector is respectively by electric capacity (C2, C3) ground connection.The emitter of triode V5, triode V4 is connected with locating piece A point.
A kind of wire harness monitor station, described logic control circuit is connected with locating piece 1 by photoelectrical coupler.Photo coupler is connected between test circuit and the wire harness, has played the electric potential signal isolation and has differentiated wrong wire distribution.
A kind of wire harness monitor station, the normally opened contact of described relay J is connected with warning circuit.
A kind of wire harness monitor station, the anode of described diode D1 is connected with the collector of triode V4, its plus earth.
A kind of wire harness monitor station, the anode of described diode D2 is connected with the collector of triode V5, and its negative electrode is by relay J coil ground connection.
The wire harness monitor station, owing to adopt said structure, the single-phase on state characteristic of diode, the switching characteristic of triode, input, output load characteristic, adopt photoelectrical coupler to make isolation mutually between input/output signal, electric signal transmission have one-way, in equipment, use automatic alarm system, make test fixture and make wire harness energy and equipment can form the loop.This test system structure is simple, and is easy to operate, and measurement point is easy to expansion, and anti-interference is good, highly versatile, and cost is low.Be applicable to that occasions such as various household electrical appliance and automobile, military equipment equipment are to the wire harness Performance Detection.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail;
Fig. 1 is the utility model wire harness monitor station test circuit structure synoptic diagram;
In Fig. 1,1, locating piece on the test fixture; 2, warning circuit.
Embodiment
As shown in Figure 1, a kind of wire harness monitor station comprises test fixture, and described test fixture is provided with the locating piece 1 that is connected with the wire harness connector with the wire harness sheath; Described wire harness constitutes the wire harness test loop by logic control circuit.Described logic control circuit is connected with locating piece 1 by photoelectrical coupler.
Described logic control circuit comprises that triode, diode, resistance, electric capacity, relay form, the base stage of triode V2 links to each other with the A point of described locating piece 1 by resistance R 1, collector is connected by resistance R 3, resistance R 4 and resistance R 2 base stage with triode V4, triode V3 respectively, the collector of triode V4 is by diode D1 ground connection, the anode of diode D1 is connected with the collector of triode V4, its plus earth.The collector of triode V3 is connected with the base stage of triode V5, the collector of triode V5 is by diode D2, relay J coil ground connection, its emitter is connected with the emitter of triode V4, the base stage of triode V2 is by capacitor C 1 ground connection, and the collector of triode V4, triode V5 is respectively by capacitor C 2, capacitor C 3 ground connection.The emitter of triode V5, triode V4 is connected with the A point of locating piece 1.
The anode of described diode D2 is connected with the collector of triode V5, and its negative electrode is by relay J coil ground connection.The normally opened contact of relay J is connected with warning circuit 2.
By Fig. 1 fundamental diagram as can be known:
(1) be the unit with two lines of A, B, the A point of supposing locating piece 1 is in 0 (the gentle low level of the promptly high point) circuit of making a gift to someone for 12V, B point, when triode V2 base stage is high level, then conducting of triode V2, the base stage of the collector of triode V2, triode V4 is low level, triode V4 saturation conduction, the luminous work of diode D1.When simultaneously the base stage of triode V3 was low level, the base stage of the collector of triode V3, triode V5 was a high level, and triode V3, triode V5 all end, diode D2 dead electricity and not conducting, and relay J is not worked.
(2) when triode V2 base stage is 0 (low level), the collector of triode V2, the base stage of triode V4 is 12V (high level), then triode V3 conducting, when the base stage of the base stage of triode V3, triode V5 is low level, triode V5 saturation conduction, diode D2 conducting, the relay J adhesive simultaneously, starts warning circuit 2, be connected on photo coupler between the input of test circuit and wire harness, electric potential signal is isolated, and according to this circuit theory, the wire harness monitor station can accurately detect inefficacies such as wire harness opens circuit, short circuit, wrong wire distribution not generation and occurrence positions.
The input load characteristic of monitor station
U1＝[Vcc-Ube1/R1+R1]×R1
The noise tolerance limit, antijamming capability:
VNL (low level noise tolerance limit)=VOFF-VIL
VNL (high-level noise margin)=VIH-VON
For make tested wire harness can and equipment form the loop, equipment is by test fixture (tool), test fixture is according to the sheath of institute's survey instrument wire harness and connector and supporting making of reality.Institute's wire harness sheath is inserted in the test fixture sheath locating piece, thereby, tested wire harness and monitor station are coupled together, thereby form the loop, with relay warning circuit is driven.Connect diode in the frock at the intrafascicular main state that works to differentiate high electronegative potential and luminous indication of p-wire, 1 electric potential signal is correct if wire harness inserts the sheath locating piece, light emitting diode D1 can be luminous, otherwise, light emitting diode D1 is then not luminous, diode D2 is luminous, and relay J is connected warning circuit 2.According to above-mentioned, also just detected the correctness that wire harness end, sheath are installed in the lump.
Claims (6)
1, a kind of wire harness monitor station comprises test fixture, it is characterized in that, described test fixture is provided with the locating piece (1) that is connected with the wire harness connector with the wire harness sheath; Described wire harness constitutes the wire harness test loop by logic control circuit.
2, a kind of wire harness monitor station according to claim 1, it is characterized in that: described logic control circuit comprises triode (V2, V3, V4, V5), diode (D1, D2), resistance (R1, R2, R3, R4, R5), electric capacity (C1, C2, C3), relay (J) is formed, the base stage of triode (V2) links to each other with described locating piece (1) A point by resistance (R1), collector is respectively by resistance (R3, R4) and resistance (R2) and triode (V4), the base stage of triode (V3) is connected, the collector of triode (V4) is by diode (D1) ground connection, the collector of triode (V3) is connected with the base stage of triode (V5), the collector of triode (V5) is by diode (D2), relay (J) coil ground connection, its emitter is connected with the emitter of triode (V4), the base stage of triode (V2) is by electric capacity (C1) ground connection, triode (V4, V5) collector is respectively by electric capacity (C2, C3) ground connection, triode V5, the emitter of triode V4 is connected with locating piece (1) A point.
3, a kind of wire harness monitor station according to claim 1 and 2 is characterized in that: described logic control circuit is connected with locating piece (1) by photoelectrical coupler.
4, a kind of wire harness monitor station according to claim 2 is characterized in that: the normally opened contact of described relay (J) is connected with warning circuit (2).
5, a kind of wire harness monitor station according to claim 2 is characterized in that: the anode of described diode (D1) is connected its plus earth with the collector of triode (V4).
6, a kind of wire harness monitor station according to claim 2 is characterized in that: the anode of described diode (D2) is connected with the collector of triode (V5), and its negative electrode is by relay (J) coil ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200462171U CN201096858Y (en) | 2007-09-18 | 2007-09-18 | A wiring harness detection table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200462171U CN201096858Y (en) | 2007-09-18 | 2007-09-18 | A wiring harness detection table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096858Y true CN201096858Y (en) | 2008-08-06 |
Family
ID=39923911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200462171U Expired - Fee Related CN201096858Y (en) | 2007-09-18 | 2007-09-18 | A wiring harness detection table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096858Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141590A (en) * | 2010-12-23 | 2011-08-03 | 东莞市锐升电线电缆有限公司 | Method for electrical detection on wire harnesses of different sizes and universal test fixture |
| CN101477166B (en) * | 2009-01-21 | 2012-09-19 | 深圳市特尔佳科技股份有限公司 | Wire harness test control panel and wire harness test control method |
| CN102768323A (en) * | 2012-07-31 | 2012-11-07 | 徐州华夏电子有限公司 | Detection device for harness of automobile door |
| CN103245871A (en) * | 2013-05-15 | 2013-08-14 | 南京通用电器有限公司 | Wiring harness test instrument and wiring harness test method based on wiring harness test instrument |
| CN104180826A (en) * | 2013-05-27 | 2014-12-03 | 上海汽车集团股份有限公司 | Apparatus for monitoring interference between pipelines or wiring harnesses in automotive engine compartment |
-
2007
- 2007-09-18 CN CNU2007200462171U patent/CN201096858Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477166B (en) * | 2009-01-21 | 2012-09-19 | 深圳市特尔佳科技股份有限公司 | Wire harness test control panel and wire harness test control method |
| CN102141590A (en) * | 2010-12-23 | 2011-08-03 | 东莞市锐升电线电缆有限公司 | Method for electrical detection on wire harnesses of different sizes and universal test fixture |
| CN102141590B (en) * | 2010-12-23 | 2013-03-27 | 东莞市锐升电线电缆有限公司 | Method for electrical detection on wire harnesses of different sizes and universal test fixture |
| CN102768323A (en) * | 2012-07-31 | 2012-11-07 | 徐州华夏电子有限公司 | Detection device for harness of automobile door |
| CN102768323B (en) * | 2012-07-31 | 2014-12-17 | 徐州华夏电子有限公司 | Detection device for harness of automobile door |
| CN103245871A (en) * | 2013-05-15 | 2013-08-14 | 南京通用电器有限公司 | Wiring harness test instrument and wiring harness test method based on wiring harness test instrument |
| CN103245871B (en) * | 2013-05-15 | 2015-10-21 | 南京通用电器有限公司 | A kind of wire harness tester and the wire harness method of testing based on this wire harness tester |
| CN104180826A (en) * | 2013-05-27 | 2014-12-03 | 上海汽车集团股份有限公司 | Apparatus for monitoring interference between pipelines or wiring harnesses in automotive engine compartment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20100918 |