CN202372603U

CN202372603U - Universal serial bus (USB) connecting wire detection device

Info

Publication number: CN202372603U
Application number: CN2011205322094U
Authority: CN
Inventors: 崔鑫; 王帅; 李学玲; 凌志刚; 徐天慧; 郑春阳
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2011-12-19
Filing date: 2011-12-19
Publication date: 2012-08-08
Anticipated expiration: 2021-12-19

Abstract

The utility model relates to the field of cable detection, in particular to a connecting wire detection device. A universal serial bus (USB) connecting wire detection device comprises a device housing and a detection circuit board. The detection circuit board comprises a multi-vibrator module, a distributor U and USB connecting wire sub-port plugs U1 and U2 and USB connecting wire master port sockets U3 and U4, wherein the USB connecting wire sub-port plugs U1 and U2 and the USB connecting wire master port sockets U3 and U4 are arranged on the detection circuit board, and are exposed from the device housing; the output end of the multi-vibrator module is connected with the pulse input end of the distributor U; the four pulse output ends of the distributor U are connected with the USB connecting wire sub-port plug U1 and the USB connecting wire master port socket U3 through an indicating circuit respectively; and the USB connecting wire sub-port plug U2 and the USB connecting wire master port socket U4 are connected through a display circuit respectively. Compared with the prior art, the technical scheme has the advantages that: whether a USB connecting wire is available or not, whether a condition such as a broken circuit or a short circuit exists in the USB connecting wire or not, and the like can be conveniently judged; the working condition of the USB connecting wire can be rapidly detected without the measurement of a universal meter; and the device is easy to operate and accurate in judgment.

Description

USB connecting line pick-up unit

Technical field

The utility model relates to the cable detection range, is specifically related to a kind of connecting line pick-up unit.

Background technology

Popularizing of Along with computer technology, USB has become a most widely used technology in the data communication.The manufacturer of increasing computer equipment begins to support USB interface and on relevant product, is provided with USB interface with electronic equipment suppliers.The USB interface standard is because characteristics such as data rate is fast, easy to use, and widely people accept.

The USB connecting line is to be used for client cables that two USB devices are coupled together according to what USB standard and definition were made.Though simple in structure, because frequency of utilization than higher, is easy to breakage, under a lot of situation, the external jacket of observing the USB cable in appearance is intact, internal core opens circuit; The perhaps loosening loose contact that causes of the USB primary and secondary plug leg of plug.In this case, can't accurately judge it is which problem partly occurred actually, make troubles, also possibly produce the potential faults that causes relevant USB device to damage because of line short simultaneously to the user.

The utility model content

The purpose of the utility model is, a kind of USB connecting line pick-up unit is provided, and solves above technical matters.

The technical matters that the utility model solved can adopt following technical scheme to realize:

A kind of USB connecting line pick-up unit; Comprise a crust of the device and a testing circuit plate; It is characterized in that; Said testing circuit plate comprises a multi-harmonic-oscillations module, a divider U and is installed on the said testing circuit plate and is exposed to outer USB rim of the mouth plug U1～2 of said crust of the device and female mouthful of socket U3～U4 of USB; The pulse input end of the said divider U of output termination of wherein said multi-harmonic-oscillations module; Four pulse output ends of said divider U meet said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line through an indicating circuit respectively, and female mouthful of socket U4 of said USB connecting line rim of the mouth plug U2 and said USB connecting line links to each other through a display circuit respectively.

Said multi-harmonic-oscillations module comprises power supply E, 555 integrated package U0, resistance R 1～3, capacitor C 1～2 and light emitting diode D; The positive pole of wherein said power supply E connects 4 pin, 8 pin, power end 16 pin of said divider U and the end of said resistance R 1 of said 555 integrated package U0 respectively through a K switch; 7 pin of the said 555 integrated package U0 of another termination of said resistance R 1; And connect 6 pin, 2 pin and the said capacitor C 1 of said 555 integrated package U0 through said resistance R 2; The other end ground connection of said

capacitor C

1,5 pin of said 555 integrated package U0 is through said capacitor C 2 ground connection, the 1 pin ground connection of said 555 integrated package U0; 3 pin of said 555 integrated package U0 are as pulse input end 14 pin of output termination said divider U, and ground connection after said light emitting diode D and said resistance R 3 successively.

8 pin of said divider U, 13 pin, 15 pin ground connection; Its output terminal 3 pin, 2 pin, 4 pin and 7 pin connect 1～4 pin of said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line respectively through the indicating circuit correspondence; Each said indicating circuit all comprises light emitting diode D1～2 and resistance R 4; The color of wherein said light emitting diode D1～2 is different; The positive pole of said light emitting diode D1 connects the output terminal of said divider U, and the positive pole of its negative pole and said light emitting diode D2 meets said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line, and the negative pole of said light emitting diode D2 is through said resistance R 4 ground connection.

Each said display circuit includes light emitting diode D3 and diode D4; The negative pole of the anodal and said diode D4 of the wherein said light emitting diode D3 back correspondence that links to each other connects 1～4 pin of said USB connecting line rim of the mouth plug U2 and female mouthful of socket U4 of said USB connecting line, and the negative pole of the said light emitting diode D3 in four said display circuits and the positive pole of said diode D4 link to each other.

When the utility model uses; With the 4 pin rim of the mouth plugs at USB connecting line two ends to be measured and female mouthful of socket of 4 pins respectively with the utility model in female mouthful of socket of 4 pins and 4 pin rim of the mouth plugs dock, USB connecting line to be measured is serially connected with between indicating circuit and the display circuit.Connect K switch; If light emitting diode D1～2 in all indicating circuits are all bright successively, the light emitting diode D3 in all display circuits does not work; It is normal to explain that this USB connecting line has only an internal core to connect; Perhaps this USB connecting line is in off state, explains that this USB connecting line is unavailable.

Beneficial effect: owing to adopt technique scheme; The utility model compared with prior art; Whether available, the inner the situation whether perhaps short circuit of opening circuit is arranged etc. need not to use multimeter to measure and get final product the quality that fast detecting goes out the USB connecting line if can determine the USB connecting line easily; Simple to operate, accuracy of judgement.

Description of drawings

Fig. 1 is the circuit diagram of the utility model.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand with effect and understand, below in conjunction with the further elaboration the utility model of concrete diagram.

With reference to Fig. 1; A kind of USB connecting line pick-up unit; Comprise crust of the device 1 and testing circuit plate; The testing circuit plate comprises multi-harmonic-oscillations module, divider U and is installed on the testing circuit plate and is exposed to outer USB rim of the mouth plug U1～2 of crust of the device 1 and female mouthful of socket U3～U4 of USB; The pulse input end of the output termination divider U of multi-harmonic-oscillations module wherein, four pulse output ends of divider U meet female mouthful of socket U3 of USB connecting line rim of the mouth plug U1 and USB connecting line through an indicating circuit respectively, and USB connecting line rim of the mouth plug U2 and the female mouth of a USB connecting line socket U4 warp one display circuit respectively link to each other.

The multi-harmonic-oscillations module comprises power supply E, 555 integrated package U0, resistance R 1～3, capacitor C 1～2 and light emitting diode D; Wherein the positive pole of power supply E connects 4 pin, 8 pin, power end 16 pin of divider U and the end of resistance R 1 of 555 integrated package U0 respectively through a K switch; 7 pin of another termination 555 integrated package U0 of resistance R 1, and connect an end of 6 pin, 2 pin and the capacitor C 1 of 555 integrated package U0, the other end ground connection of capacitor C 1 through resistance R 2; The 5 foot meridian capacitor C2 ground connection of 555 integrated package U0; The 1 pin ground connection of 555 integrated package U0,3 pin of 555 integrated package U0 is as pulse input end 14 pin of output termination divider U, and ground connection after light emitting diode D and resistance R 3 successively.

8 pin of divider U, 13 pin, 15 pin ground connection; Its output terminal 3 pin, 2 pin, 4 pin and 7 pin connect 1～4 pin of USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of USB connecting line respectively through the indicating circuit correspondence; Each indicating circuit all comprises light emitting diode D1～2 and resistance R 4; Wherein the color of light emitting diode D1～2 is different; The positive pole of light emitting diode D1 connects the output terminal of divider U, and the positive pole of its negative pole and light emitting diode D2 meets USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of USB connecting line, and the negative pole of light emitting diode D2 is through resistance R 4 ground connection.

Each display circuit includes light emitting diode D3 and diode D4; Wherein the negative pole of the positive pole of light emitting diode D3 and the diode D4 back correspondence that links to each other connects 1～4 pin of USB connecting line rim of the mouth plug U2 and female mouthful of socket U4 of USB connecting line, and the negative pole of the light emitting diode D3 in four display circuits and the positive pole of diode D4 are continuous.

More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. USB connecting line pick-up unit; Comprise a crust of the device and a testing circuit plate; It is characterized in that; Said testing circuit plate comprises a multi-harmonic-oscillations module, a divider U and is installed on the said testing circuit plate and is exposed to outer USB rim of the mouth plug U1～2 of said crust of the device and female mouthful of socket U3～U4 of USB; The pulse input end of the said divider U of output termination of wherein said multi-harmonic-oscillations module; Four pulse output ends of said divider U meet said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line through an indicating circuit respectively, and female mouthful of socket U4 of said USB connecting line rim of the mouth plug U2 and said USB connecting line links to each other through a display circuit respectively.

2. USB connecting line pick-up unit according to claim 1; It is characterized in that; Said multi-harmonic-oscillations module comprises power supply E, 555 integrated package U0, resistance R 1～3, capacitor C 1～2 and light emitting diode D; The positive pole of wherein said power supply E connects 4 pin, 8 pin, power end 16 pin of said divider U and the end of said resistance R 1 of said 555 integrated package U0 respectively through a K switch; 7 pin of the said 555 integrated package U0 of another termination of said resistance R 1, and connect 6 pin, 2 pin and the said capacitor C 1 of said 555 integrated package U0, the other end ground connection of said capacitor C 1 through said resistance R 2; 5 pin of said 555 integrated package U0 are through said capacitor C 2 ground connection; The 1 pin ground connection of said 555 integrated package U0,3 pin of said 555 integrated package U0 is as pulse input end 14 pin of output termination said divider U, and ground connection after said light emitting diode D and said resistance R 3 successively.

3. USB connecting line pick-up unit according to claim 2; It is characterized in that; 8 pin of said divider U, 13 pin, 15 pin ground connection; Its output terminal 3 pin, 2 pin, 4 pin and 7 pin connect 1～4 pin of said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line respectively through the indicating circuit correspondence; Each said indicating circuit all comprises light emitting diode D1～2 and resistance R 4, and the color of wherein said light emitting diode D1～2 is different, and the positive pole of said light emitting diode D1 connects the output terminal of said divider U; The positive pole of its negative pole and said light emitting diode D2 meets said USB connecting line rim of the mouth plug U1 and female mouthful of socket U3 of said USB connecting line, and the negative pole of said light emitting diode D2 is through said resistance R 4 ground connection.

4. USB connecting line pick-up unit according to claim 3; It is characterized in that; Each said display circuit includes light emitting diode D3 and diode D4; The negative pole of the anodal and said diode D4 of the wherein said light emitting diode D3 back correspondence that links to each other connects 1～4 pin of said USB connecting line rim of the mouth plug U2 and female mouthful of socket U4 of said USB connecting line, and the negative pole of the said light emitting diode D3 in four said display circuits and the positive pole of said diode D4 link to each other.