CN207352105U - A kind of low voltage wiring harness detection device - Google Patents
A kind of low voltage wiring harness detection device Download PDFInfo
- Publication number
- CN207352105U CN207352105U CN201721236619.8U CN201721236619U CN207352105U CN 207352105 U CN207352105 U CN 207352105U CN 201721236619 U CN201721236619 U CN 201721236619U CN 207352105 U CN207352105 U CN 207352105U
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Abstract
The utility model discloses a kind of low voltage wiring harness detection device, the harness to be detected being made of multiple conducting wires is disposably docked by connector, and with short-circuit detecting and open circuit detection both of which, if indicated by main line LED light corresponding with harness to be detected, intuitively judge harness to be detected with the presence or absence of short circuit or open circuit, can be with the multiple conducting wires in batch testing harness to be detected, simple and fast is efficiently completed the detection to harness, cost is low, suitable for the detection of high-volume low voltage wiring harness, substantially increase the efficiency of voltage wiring harness test, the quality of automotive wire bundle has been effectively ensured, safety and reliability.
Description
Technical field
The utility model belongs to wiring harness test technical field, is specifically a kind of low voltage wiring harness detection device.
Background technology
Automotive wire bundle is one of component of automobile most critical, its quality, safety and reliability, which have car mass, to be lifted
The influence of sufficient weight.If harness fails, signal transmission failure is will result in, function device is ineffective；Or contact resistance mistake
Big fever is caught fire；Or short circuit is caught fire；Or insulation layer fails electric leakage, so as to threaten to user's life and property.Thus, in order to
Ensure quality, the safety and reliability of automotive wire bundle, the detection of automotive wire bundle before use is particularly significant.
More severe due to the use of environment, automotive wire bundle often breaks down in use, and user usually makes at present
Failure is investigated with universal meter, but function of multimeter is single, and whether can only judging harness conducting, can not misdeem road and short circuit etc. are asked
Phenomena such as topic, during use it is possible that wrong road is failed or short circuit is caught fire, there are larger hidden danger, and each circuit
Individual inspiration is wanted, workload is larger, and professional harness assay device structures are more complicated and costly.
Utility model content
The purpose of this utility model is to provide a kind of low voltage wiring harness detection device, has short-circuit detecting and open circuit detection two
Kind pattern, can be with the multiple conducting wires in batch testing harness, and simple and fast is efficiently completed the detection to harness, suitable for large quantities of
Measure the detection of low voltage wiring harness.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of low voltage wiring harness detection device, including microcontroller and the connector for connecting harness to be detected, it is described to connect
Plug-in unit has some terminals A and some corresponding interface B, corresponding on the terminals A connection microcontrollers of the connector
Wiring harness test interface C；
First resistor R1 is in series between the terminals A of the connector and the wiring harness test interface C of microcontroller, it is described to connect
There is contact M, the contact M by second resistance R2 connection LED light D between the terminals A and first resistor R1 of plug-in unit, it is described
The other end ground connection of LED light D；
Any terminals A of the connector is connected with power Vcc, between the power Vcc and the terminals A of connector
Relay switch K, the relay switch K is in series with to control actuation by relay coil KM or disconnect；The relay line
Enclose the relay interface of KM one end connection microcontroller, other end ground connection.
Further, the microcontroller is equipped with short-circuit detecting button and breaking detection button, is respectively used to control device
Into short-circuit detecting pattern or breaking detection pattern
The beneficial effects of the utility model：Low voltage wiring harness detection device provided by the utility model, by connector once
Property the harness to be detected that is made of multiple conducting wires of docking, and with short-circuit detecting and open circuit detection both of which, if passing through main line
LED light corresponding with harness to be detected indicated, intuitively judges harness to be detected with the presence or absence of short circuit or open circuit, can be with
Multiple conducting wires in batch testing harness to be detected, simple and fast are efficiently completed the detection to harness, and cost is low, suitable for big
The detection of batch low voltage wiring harness, substantially increases the efficiency of voltage wiring harness test, and quality, the safety of automotive wire bundle has been effectively ensured
Property and reliability.
Brief description of the drawings
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the circuit diagram of the utility model.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts
The all other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in Figure 1, the utility model provides a kind of low voltage wiring harness detection device, including MCU microcontrollers and it is used for
The connector of harness to be detected is connected, connector has 8 terminals A and 8 corresponding interface B, specifically, 8 wiring
It is respectively that A1, A2...A8,8 interface B are respectively B1, B2...B8 to hold A.8 interface B of connector connect to be checked respectively
8 conducting wires of survey line beam, 8 terminals A of connector connect 8 wiring harness test interface C of microcontroller, specific monolithic respectively
8 wiring harness test interface C of machine are respectively C1, C2...C8.
First resistor R1 is in series between 8 terminals A of connector and 8 wiring harness test interface C of microcontroller, is had
Body, it is followed successively by R11, R12...R18.There are 8 contacts respectively between the 8 terminals A and 8 first resistor R1 of connector
M, specifically, 8 contact M are respectively M1, M2...M8.8 contact M respectively by 8 second resistance R2 connections, 8 LED light D,
The other end ground connection of LED light D, wherein, 8 second resistance R2 are respectively R21, R22...R28,8 LED light D be respectively D1,
D2...D8。
Any terminals A of connector is connected with power Vcc, be in series between power Vcc and the terminals A of connector after
Electric switch K, relay switch K are controlled by relay coil KM to be attracted or disconnects, when relay coil KM is powered, relay
Device switch K is attracted, and is turned between power Vcc and the terminals A of connector；When relay coil KM is powered off, relay switch K
Disconnect, it is breaking between power Vcc and the terminals A of connector.Relay coil KM one end connects the relay interface of microcontroller,
The other end is grounded.
Short-circuit detecting button and breaking detection button are additionally provided with microcontroller, control device is respectively used to and enters short-circuit detecting
Pattern or breaking detection pattern.
Utility model works principle：
When pressing short-circuit detecting button, device enters short-circuit detecting pattern, and microcontroller is by relay interface as low electricity
Flat, relay coil KM power-off, relay switch K is disconnected, breaking between power Vcc and the terminals A of connector；Will be to be detected
8 conducting wires of harness are docked with 8 interface B of connector, and microcontroller gives wiring harness test interface C1 high level, and harness is examined at this time
Survey between interface C1, first resistor R11, contact M1, second resistance R21, LED light D1 and turn on, LED light D1 is lighted, if to be detected
Harness is there is no short circuit, then other LED light D2-D8 extinguish at this time, if having in LED light D2-D8, several waypoints are bright, Ze Zheji roads
There is short circuit in the corresponding conducting wires of LED light D；Similarly, microcontroller gives 8 wiring harness test interface C high level successively, if per all the way
LED light D is to light in order, illustrates that harness to be detected does not have short circuit phenomenon, conversely, there is a few paths of LEDs lamp D to light explanation at the same time
There is short circuit in this several line conductor.
When pressing breaking detection button, device enters breaking detection pattern, by 8 conducting wires of harness to be detected with patching
8 interface B docking of part, and the tail end of harness to be detected is all shorted together；Microcontroller is by 8 wiring harness test interfaces
C extinguishes as low level, 8 paths of LEDs lamp D；Relay interface is powered by microcontroller as high level, relay coil KM,
Relay switch K is attracted, and is turned between power Vcc and the terminals A of connector, if harness to be detected there is no open circuit, at this time 8
Road resistance R2, LED light D are both turned on, and 8 paths of LEDs lamp D are lighted at the same time, conversely, which LED light D does not work, LED light D is corresponding
Conducting wire there is disconnection problem, meanwhile, if the bright and other lamps of LED light D1 do not work, illustrate the corresponding wire breaks of D1.
Low voltage wiring harness detection device provided by the utility model, disposably docks what is be made of multiple conducting wires by connector
Harness to be detected, and with short-circuit detecting and open circuit detection both of which, if passing through main line LED light corresponding with harness to be detected
Indicated, intuitively judge that harness to be detected, can be with batch testing harness to be detected with the presence or absence of short circuit or open circuit
Multiple conducting wires, simple and fast are efficiently completed the detection to harness, and cost is low, suitable for the detection of high-volume low voltage wiring harness, greatly
The big efficiency for improving voltage wiring harness test, has been effectively ensured quality, the safety and reliability of automotive wire bundle.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one of the utility model is contained in reference to the embodiment or example particular features, structures, materials, or characteristics described
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiments or example
In combine in an appropriate manner.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member does various modifications or additions to described specific embodiment or substitutes in a similar way, without departing from reality
With new structure or surmount scope defined in the claims, all should belong to the protection range of the utility model.
Claims (2)
- A kind of 1. low voltage wiring harness detection device, it is characterised in that：Including microcontroller and for connecting patching for harness to be detected Part, the connector have some terminals A and some corresponding interface B, the terminals A connection microcontrollers of the connector Upper corresponding wiring harness test interface C；First resistor R1, the connector are in series between the terminals A of the connector and the wiring harness test interface C of microcontroller Terminals A and first resistor R1 between have contact M, the contact M pass through second resistance R2 connection LED light D, the LED The other end ground connection of lamp D；Any terminals A of the connector is connected with power Vcc, connects between the power Vcc and the terminals A of connector There are relay switch K, the relay switch K to control by relay coil KM to be attracted or disconnect；The relay coil KM One end connects the relay interface of microcontroller, other end ground connection.
- A kind of 2. low voltage wiring harness detection device according to claim 1, it is characterised in that：The microcontroller is equipped with short circuit Detection button and breaking detection button, are respectively used to control device into short-circuit detecting pattern or breaking detection pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236619.8U CN207352105U (en) | 2017-09-25 | 2017-09-25 | A kind of low voltage wiring harness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236619.8U CN207352105U (en) | 2017-09-25 | 2017-09-25 | A kind of low voltage wiring harness detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207352105U true CN207352105U (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721236619.8U Active CN207352105U (en) | 2017-09-25 | 2017-09-25 | A kind of low voltage wiring harness detection device |
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| CN (1) | CN207352105U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983023A (en) * | 2018-07-06 | 2018-12-11 | 洛阳市黄河软轴控制器股份有限公司 | A kind of wiring harness test method and its detection device and detection circuit |
| CN109335018A (en) * | 2018-10-30 | 2019-02-15 | 中国南方航空股份有限公司 | Aircraft auxiliary power plant harness automatic checkout system and harness case |
| CN110109002A (en) * | 2019-05-10 | 2019-08-09 | 广州视源电子科技股份有限公司 | Method, apparatus, system and the storage medium of testing capacitor screen control panel |
| CN111580013A (en) * | 2020-05-27 | 2020-08-25 | 上海趣致网络科技股份有限公司 | Cable detection circuit of unmanned vending machine |
| CN111812554A (en) * | 2020-07-24 | 2020-10-23 | 上海星融汽车科技有限公司 | On-board diagnostic (OBD) interface plug-pull state detection device based on photoresistor and detection method thereof |
| CN112305453A (en) * | 2020-10-29 | 2021-02-02 | 一汽奔腾轿车有限公司 | Automobile wire harness detection device |
-
2017
- 2017-09-25 CN CN201721236619.8U patent/CN207352105U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983023A (en) * | 2018-07-06 | 2018-12-11 | 洛阳市黄河软轴控制器股份有限公司 | A kind of wiring harness test method and its detection device and detection circuit |
| CN109335018A (en) * | 2018-10-30 | 2019-02-15 | 中国南方航空股份有限公司 | Aircraft auxiliary power plant harness automatic checkout system and harness case |
| CN109335018B (en) * | 2018-10-30 | 2024-02-23 | 中国南方航空股份有限公司 | Automatic wire harness detection system and wire harness box for aircraft auxiliary power device |
| CN110109002A (en) * | 2019-05-10 | 2019-08-09 | 广州视源电子科技股份有限公司 | Method, apparatus, system and the storage medium of testing capacitor screen control panel |
| CN111580013A (en) * | 2020-05-27 | 2020-08-25 | 上海趣致网络科技股份有限公司 | Cable detection circuit of unmanned vending machine |
| CN111812554A (en) * | 2020-07-24 | 2020-10-23 | 上海星融汽车科技有限公司 | On-board diagnostic (OBD) interface plug-pull state detection device based on photoresistor and detection method thereof |
| CN112305453A (en) * | 2020-10-29 | 2021-02-02 | 一汽奔腾轿车有限公司 | Automobile wire harness detection device |
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