CN201113099Y - Data bus signal dispenser - Google Patents
Data bus signal dispenser Download PDFInfo
- Publication number
- CN201113099Y CN201113099Y CNU2007200752776U CN200720075277U CN201113099Y CN 201113099 Y CN201113099 Y CN 201113099Y CN U2007200752776 U CNU2007200752776 U CN U2007200752776U CN 200720075277 U CN200720075277 U CN 200720075277U CN 201113099 Y CN201113099 Y CN 201113099Y
- Authority
- CN
- China
- Prior art keywords
- connector
- data bus
- bus signal
- signal distributor
- standard diagnostics
- 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 - Lifetime
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Abstract
The utility model discloses a data bus signal distributor, which comprises an OBD Pi connector and at least two standard diagnosis port connectors. The OBD Pi connector is connected with each standard diagnosis port connector through harnesses. Through adopting the data bus signal distributor provided by the utility model, the simultaneous connection with a plurality of diagnosis tools can be realized, the development, the debugging and the maintenance of the automobile module are convenient, and the structure is simple.
Description
Technical field
The utility model relates to a kind of signal connection device, relates in particular to a kind of data bus signal distributor.
Background technology
Existing signal distributor generally includes an OBD П connector, two standard diagnostics mouth connectors and a terminal box; OBD П connector is connected with terminal box by wire harness, and two standard diagnostics mouth connectors directly are connected on the terminal box, and OBD П connector is connected by terminal box with two standard diagnostics mouth connectors.
Owing to the rat tail in two standard diagnostics mouth connectors and the terminal box just forms in the process that terminal box is made, so can not expand again.
And when disturbing bigger industry spot to use, the can bus image data in the rat tail is easy to be interfered, and causes data distortion.In addition, because the terminal box volume is bigger, whole signal distributor weight is heavier, is unsuitable for carrying.
Based on above problem, therefore, be necessary to propose a kind of data bus signal distributor and overcome above-mentioned defective.
The utility model content
The purpose of this utility model is to propose a kind ofly can to expand, simple in structure and data bus signal distributor that antijamming capability is strong.
Data bus signal distributor of the present utility model is design like this: a kind of data bus signal distributor, comprise an OBD П connector, at least two standard diagnostics mouth connectors, and described OBD П connector is connected with wire harness with each standard diagnostics mouth connector.
Preferably, described data bus signal distributor also comprises the short circuit part, and described short circuit part is connected with the respective pins short circuit of OBD П connector or standard diagnostics mouth connector.Wherein, described short circuit part is the short circuit lead.
Preferably, the can bus in the described wire harness adopts twisted-pair feeder.
Preferably, described standard diagnostics mouth connector is the J1962 plug connector.
Adopt the data bus signal distributor that the utility model proposed, vehicle can be connected with a plurality of diagnostic tools simultaneously, has made things convenient for motor vehicle module exploitation, debugging and maintenance, and simple in structure.By the can bus line in the rat tail is adopted twisted-pair feeder, the equipment that makes can be operated in the occasion that has than strong electromagnetic, has further increased the anti-interference of equipment.
Description of drawings
Fig. 1 is the schematic diagram of data bus signal distributor of the present utility model;
Fig. 2 is the structural representation of an embodiment of data bus signal distributor of the present utility model;
Fig. 3 is a short-circuit condition structure chart between the change pin of data bus signal distributor shown in Figure 2;
Fig. 4 is another structure chart of short-circuit condition between the change pin of data bus signal distributor shown in Figure 2;
Fig. 5 is the wire harness johning knot composition of data bus signal distributor shown in Figure 2;
Fig. 6 is the schematic diagram of an expansion embodiment of data bus signal distributor shown in Figure 2.
Embodiment
Fig. 1 shows the schematic diagram of data bus signal distributor of the present utility model.As shown in Figure 1, described data bus signal distributor comprises an OBD П connector 2 and two standard diagnostics mouth connectors 4, and described OBD П connector 2 is connected by rat tail 8 with two standard diagnostics mouth connectors 4 respectively; The diagnostics port that described OBD П connector 2 is used to be connected on the car, described standard diagnostics mouth connector 4 is used for the connection diagnostic instrument.
Fig. 2 is the structure chart of an embodiment of data bus signal distributor of the present utility model.Wherein, two standard diagnostics mouth connectors 4 adopt the J1962 plug connector.According to standard, have 16 pins on OBDII connector 2 and the standard diagnostics mouth connector 4, two wire harness with 16 leads are connected two standard diagnostics mouth connectors 4 respectively with OBD П connector 2, the connected mode when specifically expanding can be referring to following description to Fig. 6.
In the J1962 standard, 4 of standard diagnostics mouth connectors have defined 9 pins, and other 7 pins keep for auto vendor's expansion to use.OBDII connector 2 is according to 4 exploitations of standard diagnostics mouth connector, and its pinout is identical with standard diagnostics mouth connector 4, has therefore also only defined 9 signals.Auto vendor can realize the transmission of data-signal signal definition on these 9 pins that defined.
If on other pins that defined the pin except 9 recited above, then the diagnostic tool that connects by OBDII connector 2 just can't obtain the signal of this pin signal definition in auto vendor.In this case, for signal distributor of the present utility model, can realize the transmission of data-signal equally by shirtsleeve operation or change.Concrete operations are as follows: as shown in Figure 3, when only connecing a diagnostic tool, when just only using a standard diagnostics mouth connector 4, a standard diagnostics mouth connector 4 of the data bus signal distributor disconnected instrument of seeing and treating patients, the short circuit part short circuit of the relevant pin of another standard diagnostics mouth connector 4, for example insert corresponding pin in the front of standard diagnostics mouth connector 4, two pins are coupled together with a lead 82.The pin of institute's short circuit is specifically determined according to the J1962 standard.So neither destroy rat tail, also do not destroy diagnostic tool.As shown in Figure 4, when needs connect two diagnostic tools, and the data bus signal distributor is when having two standard diagnostics mouth connectors 4, and two standard diagnostics mouth connectors 4 are all wanted the connection diagnostic instrument.The pin place that can be chosen in the back side of any one connector in two standard diagnostics mouth connectors 4 or the OBDII connector 2 inserts short circuit lead 82, and the copper wire that inserts lead must touch the metal pins of connector, reaches the purpose of short circuit two paths of signals.
As shown in Figure 5, two standard diagnostics mouth connectors 4 be connected to two cables of OBDII connector can be as scheming parallel connection.And in automotive wire bundle, be distributed with high speed can bus 80, and high speed can bus 80 adopts twisted-pair feeder, and twisted-pair feeder is made up of two lines of twisting.
Owing in the wire harness of automobile equipment, also include power line (12V), various connection lead, radio antenna etc., frequency fluctuation on current fluctuation on voltage magnitude fluctuation on the power line, the lead, the antenna etc. all can cause electromagnetic interference, influence the voltage signal on the can bus, thereby disturb the data on the can bus 80.Therefore in order to prevent this interference, preferred embodiment of the present utility model adopts the twisted-pair feeder mode to shield.When diagnostic tool is disturbing bigger industry spot to use, can reduce and gather the interference that the can data are subjected to, thereby avoid data distortion like this.
In addition, the described data bus signal distributor of present embodiment can also be expanded.As required, the quantity of lead-in wire is determined according to the quantity of the needed diagnostic tool of user, for example, as shown in Figure 6, the user need connect three diagnostic tools, then the user need be extended to three pass lines, is connected respectively to three standard diagnostics mouth connectors, thereby realizes the expansion of described data bus signal distributor.
Use signal distributor of the present utility model, the signal attenuation of generation can be ignored, and needn't worry the problem of signal attenuation.And can not produce interference between each order wire.
It will be understood by those skilled in the art that the utility model is not limited to the description of present embodiment, any in the claim scope of being added change or revise all in the claimed scope of the utility model.
Claims (5)
1. a data bus signal distributor is characterized in that, comprises an OBD П connector, at least two standard diagnostics mouth connectors, and described OBD П connector is connected with wire harness with each standard diagnostics mouth connector.
2. data bus signal distributor according to claim 1 is characterized in that, described data bus signal distributor also comprises the short circuit part, and described short circuit part is connected with the respective pins short circuit of OBD П connector or standard diagnostics mouth connector.
3. data bus signal distributor according to claim 2 is characterized in that, described short circuit part is the short circuit lead.
4. according to any one described data bus signal distributor among the claim 1-3, it is characterized in that the can bus in the described wire harness adopts twisted-pair feeder.
5. according to any one described data bus signal distributor among the claim 1-3, it is characterized in that described standard diagnostics mouth connector is the J1962 plug connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200752776U CN201113099Y (en) | 2007-09-26 | 2007-09-26 | Data bus signal dispenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200752776U CN201113099Y (en) | 2007-09-26 | 2007-09-26 | Data bus signal dispenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113099Y true CN201113099Y (en) | 2008-09-10 |
Family
ID=39964840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200752776U Expired - Lifetime CN201113099Y (en) | 2007-09-26 | 2007-09-26 | Data bus signal dispenser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113099Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576639A (en) * | 2012-08-01 | 2014-02-12 | 约瑟夫福格勒公司 | Measuring system and measuring method for a road construction machine |
| CN105742920A (en) * | 2014-12-12 | 2016-07-06 | 中车大连电力牵引研发中心有限公司 | Branching apparatus and system of multifunctional vehicle bus (MVB) |
| CN106959682A (en) * | 2017-03-06 | 2017-07-18 | 深圳市元征软件开发有限公司 | A kind of vehicle diagnosis method, diagnosis joint, and diagnostic system |
-
2007
- 2007-09-26 CN CNU2007200752776U patent/CN201113099Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103576639A (en) * | 2012-08-01 | 2014-02-12 | 约瑟夫福格勒公司 | Measuring system and measuring method for a road construction machine |
| US9891036B2 (en) | 2012-08-01 | 2018-02-13 | Joseph Voegele Ag | Measuring system and measuring method for a road construction machine |
| CN108710355A (en) * | 2012-08-01 | 2018-10-26 | 约瑟夫福格勒公司 | Measuring system and a measuring method for a road construction machine |
| CN105742920A (en) * | 2014-12-12 | 2016-07-06 | 中车大连电力牵引研发中心有限公司 | Branching apparatus and system of multifunctional vehicle bus (MVB) |
| CN105742920B (en) * | 2014-12-12 | 2018-08-28 | 中车大连电力牵引研发中心有限公司 | The line device and system of double-unit traction controller |
| CN106959682A (en) * | 2017-03-06 | 2017-07-18 | 深圳市元征软件开发有限公司 | A kind of vehicle diagnosis method, diagnosis joint, and diagnostic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |