CN210864007U - Low-voltage line breakpoint detection device - Google Patents
Low-voltage line breakpoint detection device Download PDFInfo
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- CN210864007U CN210864007U CN201920413885.6U CN201920413885U CN210864007U CN 210864007 U CN210864007 U CN 210864007U CN 201920413885 U CN201920413885 U CN 201920413885U CN 210864007 U CN210864007 U CN 210864007U
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Abstract
The utility model belongs to the technical field of electrical inspection, a low pressure circuit breakpoint detection device is disclosed, include: the device comprises a magnetic induction testing head, an amplifying circuit, a switching circuit, an indicating element and a power supply module; the magnetic induction testing head is connected with the amplifying circuit; the amplifying circuit is connected with the switching circuit; the switching circuit is connected with the indicating element in series and then connected to two ends of the power module. The utility model provides a low-voltage line breakpoint detection device, the breakpoint position of detection low-voltage line that can be accurate.
Description
Technical Field
The utility model relates to an electrical inspection technical field, in particular to low pressure circuit breakpoint detection device.
Background
In the prior art, the searching operation aiming at the disconnection of the alternating-current low-voltage wire is mainly to check whether the alternating-current low-voltage wire is open or not by using a multimeter; there is no way to determine the specific line break point. Accordingly, such open cables can only be replaced in their entirety, which results in material waste; especially for relatively long cables. Simultaneously, screening is carried out with the universal meter, needs to connect its two meter pen with the circuit both ends of waiting to examine, consequently to the circuit that length exceeds 5 meters, just very troublesome with the universal meter, still need connect the extension line, leads to the relatively poor adaptability to the inspection object.
SUMMERY OF THE UTILITY MODEL
The utility model provides a low pressure circuit breakpoint detection device solves among the prior art low pressure circuit broken string inspection adaptability and examines, the technical problem of the unable definite breakpoint.
In order to solve the technical problem, the utility model provides a low pressure circuit breakpoint detection device, include: the device comprises a magnetic induction testing head, an amplifying circuit, a switching circuit, an indicating element, a power supply module and a shell;
the magnetic induction testing head is connected with the amplifying circuit;
the amplifying circuit is connected with the switching circuit;
the switching circuit is connected with the indicating element in series and then is connected to two ends of the power supply module;
the magnetic induction testing head is a copper coil;
wherein, a detection window is arranged in the shell, and the magnetic induction test head is embedded in the detection window;
a fixed clamping groove is formed in the shell, and the amplifying circuit, the switch circuit, the indicating element and the power supply module are respectively fixed in the fixed clamping groove;
the housing is provided as an insulating material housing.
Further, the amplification circuit includes: a first transistor, the switching circuit comprising: a second triode;
the collector of the first triode is connected with the anode of the power supply module, the base of the first triode is connected with the copper coil, and the emitter of the first triode is connected with the base of the second triode;
and the collector of the second triode is connected with the indicating element, the indicating element is connected with the anode of the power module, and the emitter of the second triode is connected with the cathode of the power module.
Further, the indicating element comprises: a light emitting diode;
the anode of the light emitting diode is connected with the anode of the power supply module, and the cathode of the light emitting diode is connected with the collector of the second triode.
Further, the indicating element comprises: a buzzer;
the buzzer is connected with the positive electrode of the power module, and the buzzer is connected with the collector electrode of the second triode.
Further, the power supply module includes: the battery jar and a battery connected in the battery jar;
the positive electrode of the battery jar is connected with the first triode and the indicating element;
and the negative electrode of the battery jar is connected with the emitting electrode of the second triode.
Further, the battery is a button battery.
Further, the housing is a cylindrical housing;
the detection window is arranged at the first end of the cylindrical shell, and the second end of the cylindrical shell is provided with a battery replacement window;
and a sealing cover is screwed on the battery replacing window.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the low-voltage line breakpoint detection device provided in the embodiment of the application is composed of a magnetic induction test head, an amplifying circuit, a switch circuit, an indicating element and a power supply module; the alternating magnetic field of the low-voltage alternating current line is induced by the magnetic induction testing head, weak electric signals are generated by excitation, the weak electric signals are amplified by the amplifying circuit and then drive the switching circuit, and a loop formed by the indicating element and the power supply module is conducted, so that the indicating element is electrified, and information of indicating properties such as brightness, buzzing and the like is generated; when the information indicating the nature disappears, it indicates that there is a break point in the line. The breakpoint detection device of the electric circuit can efficiently and conveniently locate the breakpoint, is convenient for targeted maintenance and replacement, and reduces the consumption of maintenance consumables while ensuring the efficiency.
Drawings
Fig. 1 is a schematic circuit diagram of the low-voltage line breakpoint detection device provided by the present invention;
fig. 2 is the utility model provides a low pressure circuit breakpoint detection device's schematic structure diagram.
Detailed Description
The embodiment of the application provides a low-voltage line breakpoint detection device, and solves the technical problems that in the prior art, the adaptability of low-voltage line disconnection inspection cannot be checked, and breakpoints cannot be determined.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1, a low voltage line breakpoint detection device includes: the magnetic induction test head comprises a magnetic induction test head 1, an amplifying circuit 2, a switching circuit 3, an indicating element 4 and a power supply module 5.
This will be explained in detail below.
The magnetic induction test head 1 is connected with the amplifying circuit 2; the magnetic induction test head 1 is used for detecting an alternating magnetic field on an alternating current circuit, generating a weak current signal, amplifying the weak current signal through the amplifying circuit 2 and transmitting the weak current signal to a lower-stage circuit.
The amplifying circuit 2 is connected with the switch circuit 3; the switch circuit 3 and the indication element 4 are connected in series and then connected to two ends of the power module 5. The amplified current signal is sent to the switch circuit 3, and the switch circuit 3 is driven to conduct a power supply loop of the indicating element 4, so that the indicating element 4 can be powered to work, and information indicating the property is generated.
In general, the indicator 4 may be a simple electronic component having a signal indicating a significant operation, such as a light emitting diode, an LED lamp, or a buzzer.
The respective components will be specifically described below.
The induction test head 1 is a copper coil, and weak electric signals are generated in an alternating magnetic field generated by an alternating current circuit.
Further, the amplification circuit 2 includes: a first transistor, the switching circuit 3 comprising: and a second triode.
The collector of the first triode is connected with the anode of the power supply module, the base of the first triode is connected with the copper coil, and the emitter of the first triode is connected with the base of the second triode; the weak current signal turns on the first triode, so that the emitter of the first triode outputs current to the base of the second triode, and the second triode is conducted, namely, the second triode which is an element serving as a switching power is turned on.
Generally, the first triode and the second triode are provided with corresponding threshold voltages as conduction parameters according to requirements; a C945 triode may be used.
And the collector of the second triode is connected with the indicating element 4, the indicating element 4 is connected with the anode of the power module 5, and the emitter of the second triode is connected with the cathode of the power module 5. Thereby conducting the power supply closed loop to realize power supply.
Further, based on the light emitting signal and the buzzer signal, the indicating element 4 may be a light emitting diode; the anode of the light emitting diode is connected with the anode of the power module 5, and the cathode of the light emitting diode is connected with the collector of the second triode.
Or, the indication element adopts a buzzer; the buzzer is connected with the positive electrode of the power module 5, and the buzzer is connected with the collector electrode of the second triode.
Of course, the present embodiment is not limited to the specific indication element 4, and other elements may be used to implement the indication function.
The embodiment also provides a specific detection device structure, which is convenient to operate and use.
Referring to fig. 2, the low voltage line breakpoint detection apparatus further includes: a housing 6; a detection window is arranged in the shell 6, and the magnetic induction test head 1 is embedded in the detection window; i.e. out of the housing 6.
A fixed clamping groove is formed in the shell 6, and the amplifying circuit 2, the switch circuit 3, the indicating element 4 and the power module 5 are respectively fixed in the fixed clamping groove, so that the reliability of the circuit structure is guaranteed.
Generally, the power module comprises: the battery jar and a battery connected in the battery jar; the positive electrode of the battery jar is connected with the first triode and the indicating element 4; and the negative electrode of the battery jar is connected with the emitting electrode of the second triode. So that the battery can be replaced as needed. Correspondingly, the battery is a 3V button battery.
Of course, a rechargeable battery may be used as the power supply module.
Further, the housing 6 is a cylindrical housing; the detection window is arranged at the first end of the cylindrical shell, and the second end of the cylindrical shell is provided with a battery replacement window; the battery replacing window is screwed with a sealing cover 7, so that the battery replacing window is convenient to replace and fasten the groove.
The cylindrical housing is provided as an insulating material housing, avoiding interference.
The specific operation is described below.
When the device is used for measurement, one end of a line L to be measured is connected to a power live wire 8, the magnetic induction test head 1 moves along the line L to be measured, the magnetic induction test head 1 induces to generate a weak electric signal, the signal is amplified by the first triode and then conducted to the second triode, so that the light emitting diode or the LED lamp is conducted to emit light, and the part where the LED lamp is not bright is a broken line position. Generally, the fault line is straightened to avoid coiling when detecting.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the low-voltage line breakpoint detection device provided in the embodiment of the application is composed of a magnetic induction test head, an amplifying circuit, a switch circuit, an indicating element and a power supply module; the alternating magnetic field of the low-voltage alternating current line is induced by the magnetic induction testing head, weak electric signals are generated by excitation, the weak electric signals are amplified by the amplifying circuit and then drive the switching circuit, and a loop formed by the indicating element and the power supply module is conducted, so that the indicating element is electrified, and information of indicating properties such as brightness, buzzing and the like is generated; when the knowledge-based information disappears, it indicates that there is a break in the area. The breakpoint detection device of the electric circuit can efficiently and conveniently locate the breakpoint, is convenient for targeted maintenance and replacement, and reduces the consumption of maintenance consumables while ensuring the efficiency.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (7)
1. A low-voltage line breakpoint detection device, comprising: the device comprises a magnetic induction testing head, an amplifying circuit, a switching circuit, an indicating element, a power supply module and a shell;
the magnetic induction testing head is connected with the amplifying circuit;
the amplifying circuit is connected with the switching circuit;
the switching circuit is connected with the indicating element in series and then is connected to two ends of the power supply module;
the magnetic induction testing head is a copper coil;
wherein, a detection window is arranged in the shell, and the magnetic induction test head is embedded in the detection window;
a fixed clamping groove is formed in the shell, and the amplifying circuit, the switch circuit, the indicating element and the power supply module are respectively fixed in the fixed clamping groove;
the housing is provided as an insulating material housing.
2. The low voltage line breakpoint detection device of claim 1, wherein the amplification circuit comprises: a first transistor, the switching circuit comprising: a second triode;
the collector of the first triode is connected with the anode of the power supply module, the base of the first triode is connected with the copper coil, and the emitter of the first triode is connected with the base of the second triode;
and the collector of the second triode is connected with the indicating element, the indicating element is connected with the anode of the power module, and the emitter of the second triode is connected with the cathode of the power module.
3. The low voltage line breakpoint detection device of claim 2, wherein the indication element comprises: a light emitting diode;
the anode of the light emitting diode is connected with the anode of the power supply module, and the cathode of the light emitting diode is connected with the collector of the second triode.
4. The low voltage line breakpoint detection device of claim 2, wherein the indication element comprises: a buzzer;
the buzzer is connected with the positive electrode of the power module, and the buzzer is connected with the collector electrode of the second triode.
5. The low voltage line breakpoint detection device according to claim 3 or 4, wherein the power supply module includes: the battery jar and a battery connected in the battery jar;
the positive electrode of the battery jar is connected with the first triode and the indicating element;
and the negative electrode of the battery jar is connected with the emitting electrode of the second triode.
6. The low voltage line breakpoint detection device of claim 5, wherein: the battery is a button battery.
7. The low voltage line breakpoint detection device of claim 5, wherein: the shell is a cylindrical shell;
the detection window is arranged at the first end of the cylindrical shell, and the second end of the cylindrical shell is provided with a battery replacement window;
and a sealing cover is screwed on the battery replacing window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413885.6U CN210864007U (en) | 2019-03-29 | 2019-03-29 | Low-voltage line breakpoint detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920413885.6U CN210864007U (en) | 2019-03-29 | 2019-03-29 | Low-voltage line breakpoint detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210864007U true CN210864007U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920413885.6U Active CN210864007U (en) | 2019-03-29 | 2019-03-29 | Low-voltage line breakpoint detection device |
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|---|---|
| CN (1) | CN210864007U (en) |
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- 2019-03-29 CN CN201920413885.6U patent/CN210864007U/en active Active
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