CN203396889U - Cable identification apparatus with lightning function - Google Patents
Cable identification apparatus with lightning function Download PDFInfo
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- CN203396889U CN203396889U CN201320469996.1U CN201320469996U CN203396889U CN 203396889 U CN203396889 U CN 203396889U CN 201320469996 U CN201320469996 U CN 201320469996U CN 203396889 U CN203396889 U CN 203396889U
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- cable
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Abstract
A cable identification apparatus with a lightning function comprises a transmitter, an induction coil for coupling current signals generated by the transmitter into a cable to be tested or couplingly outputting current signals on the cable to be tested, and a receiver for testing current signals output by the induction coil. The transmitter comprises a one-chip microcomputer, a power unit, an ADC voltage detection unit, an amplification unit and a voltage output unit, wherein the amplification unit and the voltage output unit are connected with an output end of the one-chip microcomputer in sequence, the power unit is connected with an input end of the one-chip microcomputer and an input end of the ADC voltage detection unit, an output end of the ADC voltage detection unit is connected with the one-chip microcomputer, and a high-voltage capacitor is arranged between the ADC voltage detection unit and the power unit. The cable identification apparatus with the lightning function can effectively prevent damage of a high-voltage current to the cable identification apparatus by arranging the high-voltage capacitor between the ADC voltage detection unit and the power unit.
Description
Technical field
The utility model relates to electric system detection technique, is specifically related to a kind of lightning function cable recognition device.
Background technology
In the application process of power cable, conventionally to identify one group of same model cable, to judge wherein not charged (not moving) cable, the most frequently used method is at present: in one end of cable, add a DC signal to tested not live electric cable, output current I, because the ground wire in one group of cable links together, therefore on every cable earth wire, can get electric current and be respectively I1, I2 ... In, current relationship is wherein: I=I1+12 ... + In.Tested cable is I-I1 by the induction current of ring current sensor, and its direction is identical with electric current I direction, and the electric current of other cable is respectively I/n, direction and electric current I opposite direction.Therefore can judge tested cable by being connected to the pointer direction of the DC ammeter of ring current sensor, facts have proved that this method is a kind of very effective method.
But, this traditional cable recognition device is because it does not arrange lightning protection device, therefore at bad weather, particularly, when thunderstorm rain weather occurs, extremely easily the instantaneous heavy current of thunder and lightning is introduced in cable recognition device, the internal circuit of cable recognition device is burnt out it can not be worked, and by chance, when bad weather, the possibility that cable breaks down is larger, therefore, cause this traditional cable recognition device just can not meet actual needs.
Summary of the invention
For the deficiencies in the prior art, the purpose of this utility model aims to provide a kind of simple in structure, has the cable recognition device of lightning protection function.
For achieving the above object, the utility model adopts following technical scheme: a kind of lightning function cable recognition device, comprise the transmitter for generation of current signal source, and be coupled into tested cable for the current signal that transmitter is produced, or by the inductive coil of the current signal coupling output on tested cable, receiver with the current signal of exporting for detection of inductive coil, and described transmitter comprises single-chip microcomputer, power supply unit, ADC voltage detection unit, and the amplifying unit and the voltage output unit that are connected successively with described single-chip microcomputer output terminal, described power supply unit is connected with the input end of ADC voltage detection unit with single-chip microcomputer respectively, and the output terminal of described ADC voltage detection unit is connected with described single-chip microcomputer, it is characterized in that: between described ADC voltage detection unit and described power supply unit, be provided with a high-voltage capacitance.
On the basis of such scheme, preferably, described transmitter is provided with first interface and the second interface, and described first interface is coupled by described inductive coil and tested cable, and the second described interface is connected with the earth by ground nail.
On the basis of such scheme, preferably, described inductive coil is this lubber ring of Kenneth Rogoff.
On the basis of such scheme, preferably, described inductive coil is that described inductive coil comprises the first joint and the second joint, and the first described joint is provided with plastic hoop.
On the basis of such scheme, preferably, described single-chip microcomputer adopts Cortex-M3 processor.
On the basis of such scheme, on preferred described receiver, be provided with a LCDs.
On the basis of such scheme, preferably, described receiver is provided with some pilot lamp.
The beneficial effects of the utility model are:
Than prior art, a kind of lightning function cable of the utility model recognition device, by a high-voltage capacitance being set between the ADC voltage detection unit at transmitter and power supply unit, when by the overtension of transmitter, while having exceeded the capacity of high-voltage capacitance, high-voltage capacitance will breakdownly disconnect, thereby power supply unit is stopped power supply, and then effectively stops the infringement of high-tension current to cable recognition device.
Accompanying drawing explanation
Fig. 1 is the transmitter circuitry figure of a kind of lightning function cable of the utility model recognition device.
Fig. 2 is the working state figure of a kind of lightning function cable of the utility model recognition device.
Embodiment
Below, by reference to the accompanying drawings and embodiment, the utility model is described further:
Refer to Fig. 1, and in conjunction with shown in Fig. 2, a kind of lightning function cable of the utility model recognition device, comprise the transmitter 10 for generation of current signal source, and be coupled into tested cable for the current signal that transmitter 10 is produced, or by the inductive coil 20 of the current signal coupling output on tested cable, receiver 30 with the current signal of exporting for detection of inductive coil 20, and described transmitter 10 comprises single-chip microcomputer 11, power supply unit 12, ADC voltage detection unit 13, and the amplifying unit 14 and the voltage output unit 15 that are connected successively with described single-chip microcomputer 11 output terminals, described power supply unit 12 is connected with the input end of ADC voltage detection unit 13 with single-chip microcomputer 11 respectively, and the output terminal of described ADC voltage detection unit 13 is connected with described single-chip microcomputer 11, between ADC voltage detection unit 13 and described power supply unit 12, be provided with a high-voltage capacitance 16.Wherein, described transmitter 10 is provided with first interface 17 and the second interface 18, and described first interface 17 is coupled by described inductive coil 20 and tested cable, and the second described interface 18 is connected with the earth by ground nail.
Refer to shown in Fig. 2, when user uses, the first interface of transmitter 10 17 is coupled by the line of induction and tested cable, and it second is connect to 18 mouthfuls and be connected with the earth by ground nail, and the two ends of all tested cables are all connected with the earth, by inductive coil 20, by itself and tested cable, one of them is coupled receiver 30, the power supply unit 12 of transmitter 10 provides current signal, in the tested cable of inductive coil 20 coupling input, receiver 30 obtains its output current signal by the tested cable that is coupled one by one, thereby can effectively judge failure cable according to the current signal of output.
Shown in Fig. 2, the quantity of supposing tested cable is 3, cable number is respectively cable 101 No. 1, No. 2 cables 102, No. 3 cables 103, transmitter 10 sends the current signal I that strength of current is 15A, because all cables are all connected with the earth, so No. 1 cable 101, electric current in No. 2 cables 102 is return current, strength of current is 5A, and direction of current is contrary with I, and strength of current in No. 3 cables 103 is 10A, direction is identical with I, after detecting by the electric current in 30 pairs of every cables of receiver, just can find the cable of required identification.
For the accuracy that guarantees to detect, preferred version as this case, this inductive coil 20 is this lubber ring of Kenneth Rogoff, and described inductive coil 20 comprises the first joint and the second joint for described inductive coil 20, the first described joint is provided with plastic hoop, when user uses, inductive coil 20 is enclosed within on detected cable successively, the second joint is regulated to the size of inductive coil 20 through plastic hoop, inductive coil 20 is fitted on tested cable closely, not only can make the current signal that transmitter 10 sends to be coupled on tested cable by watt current, simultaneously, receiver 30 also can obtain the current signal that reaches lowest high-current value by inductive coil 20, and it is effectively shown by LCDs or the pilot lamp being arranged on receiver 30, thereby realize its cable recognition function.
In this process, when running into thunderbolt, cause between the ADC voltage detection unit 13 of transmitter 10 and power supply unit 12 when exceeding the maximum current that high-voltage capacitance 16 allows, high-voltage capacitance will breakdownly disconnect, thereby power supply unit 12 is stopped power supply, and then effectively stop the infringement of high-tension current to cable recognition device.
As the preferred version of this case, described single-chip microcomputer 11 adopts Cortex-M3 processor.
For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion all should belong to the protection domain of the utility model claim within.
Claims (7)
1. a lightning function cable recognition device, comprise the transmitter for generation of current signal source, and be coupled into tested cable for the current signal that transmitter is produced, or by the inductive coil of the current signal coupling output on tested cable, receiver with the current signal of exporting for detection of inductive coil, and described transmitter comprises single-chip microcomputer, power supply unit, ADC voltage detection unit, and the amplifying unit and the voltage output unit that are connected successively with described single-chip microcomputer output terminal, described power supply unit is connected with the input end of ADC voltage detection unit with single-chip microcomputer respectively, and the output terminal of described ADC voltage detection unit is connected with described single-chip microcomputer, it is characterized in that: between described ADC voltage detection unit and described power supply unit, be provided with a high-voltage capacitance.
2. lightning function cable recognition device as claimed in claim 1, it is characterized in that: described transmitter is provided with first interface and the second interface, and described first interface is coupled by described inductive coil and tested cable, the second described interface is connected with the earth by ground nail.
3. lightning function cable recognition device as claimed in claim 1, is characterized in that: described inductive coil is this lubber ring of Kenneth Rogoff.
4. lightning function cable recognition device as claimed in claim 1, is characterized in that: described inductive coil is that described inductive coil comprises the first joint and the second joint, and the first described joint is provided with plastic hoop.
5. lightning function cable recognition device as claimed in claim 1, is characterized in that: described single-chip microcomputer adopts Cortex-M3 processor.
6. lightning function cable recognition device as claimed in claim 1, is characterized in that: described receiver is provided with a LCDs.
7. lightning function cable recognition device as claimed in claim 1, is characterized in that: described receiver is provided with some pilot lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469996.1U CN203396889U (en) | 2013-08-04 | 2013-08-04 | Cable identification apparatus with lightning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320469996.1U CN203396889U (en) | 2013-08-04 | 2013-08-04 | Cable identification apparatus with lightning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396889U true CN203396889U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320469996.1U Expired - Fee Related CN203396889U (en) | 2013-08-04 | 2013-08-04 | Cable identification apparatus with lightning function |
Country Status (1)
| Country | Link |
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| CN (1) | CN203396889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926536A (en) * | 2019-12-06 | 2020-03-27 | 国网江苏省电力有限公司南通供电分公司 | Cable trench detection system based on wireless signal acquisition and detection method thereof |
-
2013
- 2013-08-04 CN CN201320469996.1U patent/CN203396889U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926536A (en) * | 2019-12-06 | 2020-03-27 | 国网江苏省电力有限公司南通供电分公司 | Cable trench detection system based on wireless signal acquisition and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG ZHILUN ELECTRIC POWER TECHNOLOGY CO., LTD Free format text: FORMER NAME: HANGZHOU ZHILUN ELECTRIC POWER TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 2, No. 452, No. 310000, No. 6, Poplar Street, Hangzhou economic and Technological Development Zone, Zhejiang, province, B0701-B0710 Patentee after: Hangzhou Zhilun Electric Power Science & Technology Co., Ltd. Address before: 2, No. 452, No. 310000, No. 6, Poplar Street, Hangzhou economic and Technological Development Zone, Zhejiang, province, B0701-B0710 Patentee before: Hangzhou Zhilun Electric Power Science & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20170804 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |