CN207232300U

CN207232300U - Wire harnesses detection device

Info

Publication number: CN207232300U
Application number: CN201721266746.2U
Authority: CN
Inventors: 季善华
Original assignee: SUZHOU TIANQIAN LASER EQUIPMENT Co Ltd
Current assignee: SUZHOU TIANQIAN LASER EQUIPMENT Co Ltd
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2018-04-13
Anticipated expiration: 2027-09-29

Abstract

It the utility model is related to a kind of wire harnesses detection device, including microcontroller power supply module, key-press module, signal sendaisle module, signal sending end mouth mold block, signal sampling channel module and signal acquisition port module.The harness both ends that will be detected during detection are connected respectively to signal sending end mouth and the signal acquisition port of wiring harness test device, and the purpose to harness break-make and short circuit progress automatic detection is realized by the judgement of the signal low and high level fed back to signal acquisition port.

Description

Electronic wire harness detection device

Technical Field

The utility model relates to a detection device especially relates to a detection device for electron pencil.

Background

The number of electronic harnesses used in many fields where there is a particular need for customization or where there is little production is very small relative to the number used in the general field; because the use amount is small, the wire harness is manufactured by staff of a company in many cases, and the manufactured wire harness generally needs to be detected in order to meet the use requirement.

Certainly, purchasing a professional detection instrument is a simple and effective method, but the cost is too high, the utilization rate is not high, a task of manufacturing may not be performed for one or two months sometimes, and the maximization of benefit cannot be achieved, so that a general method is to call one to two multimeters for testing two ends of a wire harness one by one pin after the wire harness is manufactured, the testing is useless when the wire harness is used, and errors are prone to occurring when the number of pins is large.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model aims at providing a detection device which can reduce the labor intensity and improve the production efficiency.

In order to achieve the above object, the present invention provides an electronic wire harness detection device, which comprises a single chip, a power module, a key module, a signal transmission channel module, a signal transmission port module, a signal acquisition channel module and a signal acquisition port module, wherein the power module is connected to the single chip for providing power; the key module is connected with the single chip microcomputer; the signal sending channel module and the signal collecting channel module are respectively connected with the single chip microcomputer; the signal sending port module is connected with the signal sending channel module, and the signal acquisition port module is connected with the signal acquisition channel module; the signal sending channel module comprises at least one sending power-on channel and an analog switch connected with the sending power-on channel, the signal sending port module comprises at least one signal sending port, and the signal sending port is connected with the sending power-on channel; the signal acquisition channel module comprises at least one acquisition electrifying channel, an indicating unit and an analog switch, wherein the indicating unit and the analog switch are connected with the acquisition electrifying channel, and the signal acquisition port module comprises at least one signal acquisition port which is connected with the acquisition electrifying channel.

Advantageously, the intelligent control system further comprises a display module, and the display module is connected with the single chip microcomputer. Thus, the detection result can be displayed on the display module.

Preferably, the indication unit is an LED indicator lamp.

Preferably, the signal transmission channel module includes 30 transmission power-on channels, the signal transmission port module includes 30 signal transmission ports, the signal acquisition channel module includes 30 acquisition power-on channels, and the signal acquisition port module includes 30 signal acquisition ports.

The utility model provides an electron pencil detection device's advantage and beneficial effect lie in: (1) automatically detecting the on-off condition of the wire harness; (2) automatically detecting the short circuit condition of the wire harness; (3) automatically judging the detection result (passing or failing), and giving a prompt or a buzzer; (4) and (3) directly displaying bad reasons and bad pins of bad wire harnesses found in detection through an LCD or LED indicator lamp, and prompting along with buzzing.

Drawings

FIG. 1 is a block diagram of the results of the present invention;

FIG. 2 is a schematic diagram of the connection of the preferred embodiment of the present invention;

wherein,

1. a single chip microcomputer; 2. a power supply module; 3. a key module; 4. a signal transmission channel module; 5. a signal transmission port module; 6. a signal acquisition channel module; 7. a signal acquisition port module; 8. a display module; 9. an electronic wire harness to be tested; 10. an analog switch; 11. an LED indicator light; 12. sending a power-on channel; 13. collecting an electrifying channel; 14. a signal transmission port; 15. a signal acquisition port.

Detailed Description

As shown in fig. 1, the electronic wire harness detection device includes a single chip microcomputer 1, a power module 2, a key module 3, a signal transmission channel module 4, a signal transmission port module 5, a signal acquisition channel module 6 and a signal acquisition port module 7, wherein the single chip microcomputer 1 can be a 51-series single chip microcomputer, and the power module 2 is connected with the single chip microcomputer 1 and used for providing power; the key module 3 is connected with the singlechip 1 and comprises a start key and a stop key; the signal sending channel module 4 and the signal collecting channel module 6 are respectively connected with the single chip microcomputer 1; the signal sending port module 5 is connected with the signal sending channel module 4, and the signal collecting port module 7 is connected with the signal collecting channel module 6; the signal sending channel module 4 comprises at least one sending power-on channel 12 and an analog switch 10 connected with the sending power-on channel, the signal sending port module 5 comprises at least one signal sending port 14, and the signal sending port 14 is connected with the sending power-on channel 12; the signal acquisition channel module 6 comprises at least one acquisition power-on channel 13, and an indicating unit and an analog switch 10 which are connected with the acquisition power-on channel, wherein the indicating unit is an LCD indicating lamp or an LED indicating lamp 11, the signal acquisition port module 7 comprises at least one signal acquisition port 15, and the signal acquisition port 15 is connected with the acquisition power-on channel 13; preferably, the signal transmission channel module 4 includes 30 transmission power-on channels, the signal transmission port module 5 includes 30 signal transmission ports, the signal acquisition channel module 6 includes 30 acquisition power-on channels, and the signal acquisition port module 7 includes 30 signal acquisition ports, so that 30 cores and less than 30 cores of wire harness detection can be supported, and certainly, expansion can be performed according to implementation needs; in addition, the device also comprises a display module, wherein the display module is connected with the singlechip to form a human-computer interface, so that the detection result can be displayed on the display module.

As shown in fig. 2, taking the detection of a 30-core wire harness as an example, the working principle flow of 30 corresponding transmitting power-on channels and 30 corresponding collecting power-on channels is as follows:

30 core cables in the electronic wire harness 9 to be tested are respectively connected to 30 signal sending ports and 30 signal acquisition ports of the wire harness detection device, after initialization of a single chip microcomputer program is finished, a start button on the detection device is pressed to start detection, and the steps are as follows:

the first step is as follows: the single chip microcomputer firstly switches the transmitting power-on channel to the first transmitting power-on channel, other channels are in a closed state, signals on the channel are set to be at a high level, if the high level is received on the corresponding first acquisition power-on channel of the signal acquisition port, the connection on the channel is judged to be normal, and if the high level is the low level, the cable on the channel is judged to be open; then the single chip microcomputer continues to sequentially switch the acquisition power-on channels on the signal acquisition ports to the acquisition power-on channels except the first acquisition power-on channel and acquire corresponding levels, the low level indicates normal, the high level indicates that a cable on the corresponding acquisition power-on channel and a cable on the first sending power-on channel are in short circuit, and the detection of the first sending power-on channel is finished;

the second step is that: after the first sending power-on channel is detected, the singlechip switches the sending power-on channel of the signal sending port to a second sending power-on channel (other channels are in a closed state), sets a signal on the channel to be at a high level, detects the level state of a corresponding second collecting power-on channel of the signal collecting port, and has the same judging method as the first step;

the third step: and so on until all 30 sending power-on channels are detected once;

the fourth step: after all the channels are detected, the single chip sends the detection results of the steps to a human-computer interface; the 'test pass' is displayed without failure, the failure displays the failure reason and gives a corresponding failure position; the operator only needs to perform subsequent actions according to the judgment result.

The fourth step: end of the entire test!

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and changes will readily occur to those skilled in the art based upon the teachings of the present invention. Therefore, the technical solutions that can be obtained by logic analysis, reasoning or limited experiments based on the prior art according to the design concept of the present invention should be within the scope of the present invention and/or the protection scope defined by the claims.

Claims

1. Electronic pencil detection device, its characterized in that: the device comprises a single chip microcomputer (1), a power supply module (2), a key module (3), a signal sending channel module (4), a signal sending port module (5), a signal acquisition channel module (6) and a signal acquisition port module (7), wherein the power supply module (2) is connected with the single chip microcomputer (1) and used for supplying power; the key module (3) is connected with the singlechip (1); the signal sending channel module (4) and the signal collecting channel module (6) are respectively connected with the single chip microcomputer (1); the signal sending port module (5) is connected with the signal sending channel module (4), and the signal acquisition port module (7) is connected with the signal acquisition channel module (6); the signal sending channel module comprises at least one sending power-on channel (12) and an analog switch (10) connected with the sending power-on channel, and the signal sending port module comprises at least one signal sending port (14) connected with the sending power-on channel; the signal acquisition channel module (6) comprises at least one acquisition electrifying channel (13), an indicating unit and an analog switch (10), wherein the indicating unit and the analog switch are connected with the acquisition electrifying channel, the signal acquisition port module (7) comprises at least one signal acquisition port (15), and the signal acquisition port is connected with the acquisition electrifying channel.

2. The electronic harness detecting device according to claim 1, wherein: the display device is characterized by further comprising a display module (8), wherein the display module (8) is connected with the single chip microcomputer (1).

3. The electronic harness detecting device according to claim 2, wherein: the indicating unit is an LED indicating lamp (11).

4. The electronic harness detecting device according to claim 3, wherein: the signal transmission channel module (4) comprises 30 transmission power-on channels, the signal transmission port module (5) comprises 30 signal transmission ports, the signal acquisition channel module (6) comprises 30 acquisition power-on channels, and the signal acquisition port module (7) comprises 30 signal acquisition ports.