Nondestructive testing device for cable breakage

Abstract

The utility model relates to the technical field of electrical automatic detection and protection, and discloses a cable breakage nondestructive detection device which comprises a detection module, an alarm module and a power supply module, the detection module is connected with the alarm module, and the power supply module is connected with the alarm module. The power supply module is respectively connected with the detection module and the alarm module, so that the problem that a large amount of manpower, money, material, time and the like need to be invested due to the fact that the online monitoring technology needs to be continuously updated and upgraded to adapt to new requirements and challenges is solved. Meanwhile, the problem that the automatic detection technology cannot be widely popularized due to the fact that the automatic detection technology cannot simply and efficiently adapt to the structure and function differences of different electrical products is solved.

Description

Technical Field

[0001] This utility model relates to the field of electrical automatic detection and protection technology, and in particular to a non-destructive testing device for cable breakage. Background Technology

[0002] In modern power systems, circuit faults are common and potential safety hazards. Traditional circuit detection methods, such as voltage, resistance, and current methods, typically require power outages for testing. This not only affects the continuity and reliability of the power system but may also introduce additional safety risks.

[0003] In recent years, with the development of the Internet of Things (IoT) and big data technologies, the monitoring methods for power systems have been significantly improved. Online monitoring technology utilizes sensor networks and remote data transmission to achieve real-time monitoring and data analysis of circuit conditions. However, online monitoring technology also needs continuous updates and upgrades to adapt to new demands and challenges, requiring significant investment in research and development, equipment purchase and regular maintenance, and personnel training. Therefore, it is difficult to widely promote and use in many power system fault detection scenarios.

[0004] Furthermore, with the advancement of smart grids, electrical automatic detection technologies have been widely applied. These technologies utilize computer and electronic technologies to achieve automated detection and fault prediction of electrical equipment without power interruption. However, due to the differences in structure and function among various electrical products, traditional automatic detection technologies have certain limitations in applicability.

[0005] Considering the cost and compatibility issues of existing solutions, finding a simpler, faster, safer, more efficient, and cost-effective non-destructive testing method for cable breaks has become an urgent problem that the entire power system industry needs to solve. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide a non-destructive testing device for cable breaks, so as to solve the problem of locating the cable break location simply, flexibly and efficiently without power interruption during cable maintenance, while also having strong adaptability and high cost performance.

[0007] To address the aforementioned technical problems, this utility model provides a non-destructive testing device for cable breaks. The testing device comprises three parts: a testing module, an alarm module, and a power supply module. The testing module is connected to the alarm module, and the power supply module is connected to both the testing module and the alarm module.

[0008] Optionally, the detection module includes an induction coil, a first NPN transistor, a second NPN transistor, a third PNP transistor, and a resistor. The induction coil is soldered to the base of the first NPN transistor, the emitter of the first NPN transistor is soldered to the base of the second NPN transistor, the collector of the second NPN transistor is soldered to the base of the third PNP transistor, the collector of the first NPN transistor is soldered to one end of the resistor, and the emitter of the third PNP transistor is soldered to the other end of the resistor.

[0009] Optionally, the power module includes a DC power supply and a switch. The negative terminal of the DC power supply is welded to the emitter of the second NPN transistor, the positive terminal of the DC power supply is welded to one end of the switch, and the other end of the switch is welded to the collector of the first NPN transistor.

[0010] Optionally, the alarm module includes a light-emitting diode (LED) and a buzzer. The negative terminal of the LED is soldered to the emitter of the second NPN transistor, and the positive terminal of the LED is soldered to the collector of the third PNP transistor. The buzzer is connected in parallel with the resistor, and the positive terminal of the buzzer is soldered to the collector of the first NPN transistor, while the negative terminal of the buzzer is soldered to the emitter of the third PNP transistor.

[0011] Optionally, the alarm module further includes a vibration module and a liquid crystal display module, wherein the high or low level of the collector of the first NPN transistor serves as the trigger input signal for the vibration module and the liquid crystal display module.

[0012] Optionally, the liquid crystal display module is a monochrome liquid crystal display, a color liquid crystal display, or an OLED liquid crystal display.

[0013] Optionally, the DC power supply can be a 9V DC power supply or a 9V battery power supply.

[0014] Optionally, the resistor is 220 ohms.

[0015] This utility model provides a non-destructive testing device for cable breaks. The testing device includes three parts: a testing module, an alarm module, and a power supply module. The testing module is connected to the alarm module, and the power supply module is connected to both the testing module and the alarm module. The testing module includes an induction coil, a first NPN transistor, a second NPN transistor, a third PNP transistor, and a resistor. The induction coil is soldered to the base of the first NPN transistor, the emitter of the first NPN transistor is soldered to the base of the second NPN transistor, the collector of the second NPN transistor is soldered to the base of the third PNP transistor, the collector of the first NPN transistor is soldered to one end of the resistor, and the emitter of the third PNP transistor is soldered to the other end of the resistor. Using a third PNP transistor gives the entire testing module higher voltage withstand capability, higher current drive capability, and greater circuit design flexibility. The power supply module includes a DC power supply and a switch. The negative terminal of the DC power supply is soldered to the emitter of the second NPN transistor, and the positive terminal of the DC power supply is soldered to one end of the switch. The other end of the switch is soldered to the collector of the first NPN transistor. The alarm module includes a light-emitting diode (LED) and a buzzer. The negative terminal of the LED is soldered to the emitter of the second NPN transistor, and the positive terminal of the LED is soldered to the collector of the third PNP transistor. The buzzer is connected in parallel with the resistor, and the positive terminal of the buzzer is soldered to the collector of the first NPN transistor, while the negative terminal of the buzzer is soldered to the emitter of the third PNP transistor. The alarm module also includes a vibration module and a liquid crystal display (LCD) module. A high or low voltage level at the collector of the first NPN transistor serves as the trigger input signal for the vibration module and the LCD module. The LCD module can be a monochrome LCD, a color LCD, or an OLED LCD. The DC power supply is powered by a 9V DC power supply or a 9V battery. The resistor has a resistance of 220 ohms. In summary, this utility model provides a non-destructive testing device for cable breaks, which solves the problem that online monitoring technology requires continuous updates and upgrades to adapt to new needs and challenges, thus necessitating significant investment in personnel, resources, and time. Simultaneously, it also addresses the issue that automatic detection technology cannot easily and efficiently adapt to the structural and functional differences of various electrical products, thus hindering its widespread adoption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0017] Figure 1 Overall architecture diagram of the cable breakage non-destructive testing device provided by this utility model;

[0018] Figure 2 Circuit diagram of the first embodiment of the cable breakage non-destructive testing device provided by this utility model;

[0019] Figure 3 The second embodiment of the cable breakage non-destructive testing device provided by this utility model is shown in the system block diagram. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] The purpose of this utility model embodiment is to provide a non-destructive testing device for cable breaks, which solves the problem that online monitoring technology requires continuous updates and upgrades to adapt to new needs and challenges, thus necessitating significant investment in personnel, resources, and time. Simultaneously, it also addresses the issue that automatic detection technology cannot easily and efficiently adapt to the structural and functional differences of various electrical products, thus hindering its widespread adoption.

[0022] Please see Figure 1 , Figure 1 This is an overall architecture diagram of the cable breakage non-destructive testing device provided by this utility model. In this embodiment, the cable breakage non-destructive testing device mainly includes a detection module 101, an alarm module 102, and a power supply module 103.

[0023] Please participate Figure 2 , Figure 2 This is a circuit diagram of the first embodiment of the cable breakage non-destructive testing device provided by this utility model. The detection module consists of an inductor L1, NPN transistors T1 and T2, a PNP transistor T3, and a resistor R1. The power supply VCC is the power supply module, and the alarm module consists of an LED and a buzzer M1.

[0024] When the non-destructive testing device approaches the cable, if there is no cable breakage, the induction coil L1 will not generate a significant induced electromotive force. Therefore, the induced voltage across L1 is almost zero, and the base voltage of the NPN transistor T1 is too low to turn it on. Thus, T1 is in the off state, and no current flows through its collector. Consequently, there is no current at the base of the NPN transistor T2, and T2 is also in the off state. Similarly, the PNP transistor T3 is also in the off state. Since all transistors are in the off state, no current flows through resistor R1 and the LED, so the LED will not light up. At the same time, since no current flows through the buzzer M1 connected in parallel across resistor R1, the buzzer M1 will not emit any sound.

[0025] When the non-destructive testing device approaches the cable, if there is a broken wire, such as a short circuit or open circuit, the induction coil L1 will generate an induced electromotive force (EMF). This induced EMF will be applied to the base of the NPN transistor T1, causing the base voltage of T1 to rise. When the base voltage rises to a certain level, the NPN transistor T1 will begin to conduct, allowing current to flow from the collector to the emitter of T1. This, in turn, will increase the base voltage of the NPN transistor T2, causing T2 to conduct. Similarly, the conduction of T2 will increase the base voltage of the PNP transistor T3, causing T3 to conduct. Current will flow through the resistor R1 soldered to the emitter of T3 and the LED soldered to the collector of T3. This current will cause the LED to light up, indicating a circuit fault. At the same time, since a buzzer M1 is connected in parallel across resistor R1, current will also flow through buzzer M1, causing it to sound, further alerting the user to the circuit fault.

[0026] Please participate in the drawing. Figure 3 This is a circuit diagram of the second embodiment of the cable breakage non-destructive testing device provided by this utility model. The detection module consists of an inductor L1, NPN transistors T1 and T2, a PNP transistor T3, and a resistor R1. The power supply VCC is the power supply module. The alarm module consists of an LED, a buzzer M1, a vibration module 201, and a liquid crystal display module 202.

[0027] When the non-destructive testing device approaches the cable, if there is no cable breakage, the induction coil L1 will not generate a significant induced electromotive force. Therefore, the induced voltage on L1 is almost zero, and the base voltage of the NPN transistor T1 is too low to conduct. Thus, T1 is in the off state, and no current flows through its collector. Consequently, there is no current at the base of the NPN transistor T2, and T2 is also in the off state. Similarly, the PNP transistor T3 is also in the off state. Since all transistors are in the off state, no current flows through resistor R1 and the LED, so the LED will not light up. Simultaneously, since no current flows through the buzzer M1 connected in parallel across resistor R1, buzzer M1 will not emit a sound, and the input output is high. At this time, the vibration module 201 does not vibrate, and the LCD display module 202 does not display any alerts.

[0028] When a non-destructive testing (NDT) device approaches a cable, if the cable has a break in its circuit, such as a short circuit or open circuit, the induction coil L1 will generate an induced electromotive force (EMF). This induced EMF will be applied to the base of NPN transistor T1, causing the base voltage of T1 to rise. When the base voltage rises to a certain level, NPN transistor T1 will begin to conduct, allowing current to flow from the collector to the emitter of T1. This, in turn, will increase the base voltage of NPN transistor T2, causing T2 to conduct. Similarly, the conduction of T2 will increase the base voltage of PNP transistor T3, causing T3 to conduct. Current will flow through the resistor R1 soldered to the emitter of T3 and the LED soldered to the collector of T3. This current will cause the LED to light up, indicating a circuit fault. Meanwhile, since a buzzer M1 is connected in parallel across resistor R1, current will flow through buzzer M1 and it will emit a sound. The input output will be low, and the motor of vibration module 201 will start to vibrate. The vibration will alert the staff that there is a circuit fault. The LCD display module 202 will also display a prompt to warn the staff.

[0029] In summary, this utility model embodiment provides a non-destructive testing device for cable breaks. The testing device comprises three parts: a testing module, an alarm module, and a power supply module. The testing module is connected to the alarm module, and the power supply module is connected to both the testing module and the alarm module. The testing module includes an induction coil, a first NPN transistor, a second NPN transistor, a third PNP transistor, and a resistor. The induction coil is soldered to the base of the first NPN transistor, the emitter of the first NPN transistor is soldered to the base of the second NPN transistor, the collector of the second NPN transistor is soldered to the base of the third PNP transistor, the collector of the first NPN transistor is soldered to one end of the resistor, and the emitter of the third PNP transistor is soldered to the other end of the resistor. The use of a third PNP transistor gives the entire testing module higher voltage withstand capability, higher current drive capability, and greater circuit design flexibility. The power supply module includes a DC power supply and a switch. The negative terminal of the DC power supply is soldered to the emitter of the second NPN transistor, and the positive terminal of the DC power supply is soldered to one end of the switch. The other end of the switch is soldered to the collector of the first NPN transistor. The alarm module includes a light-emitting diode (LED) and a buzzer. The negative terminal of the LED is soldered to the emitter of the second NPN transistor, and the positive terminal of the LED is soldered to the collector of the third PNP transistor. The buzzer is connected in parallel with the resistor, and the positive terminal of the buzzer is soldered to the collector of the first NPN transistor, while the negative terminal of the buzzer is soldered to the emitter of the third PNP transistor. The alarm module also includes a vibration module and a liquid crystal display (LCD) module. A high or low voltage level at the collector of the first NPN transistor serves as the trigger input signal for the vibration module and the LCD module. The LCD module can be a monochrome LCD, a color LCD, or an OLED LCD. The DC power supply is powered by a 9V DC power supply or a 9V battery. The resistor has a resistance of 220 ohms. In summary, this utility model provides a non-destructive testing device for cable breaks, which solves the problem that online monitoring technology requires continuous updates and upgrades to adapt to new needs and challenges, thus necessitating significant investment in personnel, resources, and time. Simultaneously, it also addresses the issue that automatic detection technology cannot easily and efficiently adapt to the structural and functional differences of various electrical products, thus hindering its widespread adoption.

[0030] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cable break non-destructive testing device, characterized by, The detection device comprises a detection module, an alarm module and a power module, the detection module is connected with the alarm module, and the power module is connected with the detection module and the alarm module respectively.

2. The cable break non-destructive detection apparatus of claim 1, wherein, The detection module comprises an induction coil, a first NPN triode, a second NPN triode, a third PNP triode and a resistor, wherein the induction coil is welded with the base of the first NPN triode, the emitter of the first NPN triode is welded with the base of the second NPN triode, the collector of the second NPN triode is welded with the base of the third PNP triode, the collector of the first NPN triode is welded with one end of the resistor, and the emitter of the third PNP triode is welded with the other end of the resistor.

3. The cable break non-destructive detection apparatus of claim 2, wherein, The power module comprises a direct current power supply and a switch, the negative pole of the direct current power supply is welded with the emitter of the second NPN triode, the positive pole of the direct current power supply is welded with one end of the switch, and the other end of the switch is welded with the collector of the first NPN triode.

4. The cable break non-destructive detection apparatus of claim 3, wherein, The alarm module comprises a light emitting diode and a buzzer, the negative pole of the light emitting diode is welded with the emitter of the second NPN triode, the positive pole of the light emitting diode is welded with the collector of the third PNP triode, the buzzer is connected in parallel with the resistor, the positive pole of the buzzer is welded with the collector of the first NPN triode, and the negative pole of the buzzer is welded with the emitter of the third PNP triode.

5. The cable break non-destructive detection apparatus of claim 4, wherein, The alarm module further comprises a vibration module and a liquid crystal display module, and the high or low level of the collector of the first NPN triode is used as a trigger input signal of the vibration module and the liquid crystal display module.

6. The cable break non-destructive detection apparatus of claim 5, wherein, The liquid crystal display module is a monochrome liquid crystal display, a color liquid crystal display or an OLED liquid crystal display.

7. The cable break non-destructive detection apparatus of claim 6, wherein, The direct current power supply adopts a 9V direct current power supply or a 9V battery.

8. The cable break non-destructive detection apparatus of claim 7, wherein, The resistance is 220 ohms.

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