Detection assembly and cable detection device
By integrating the Rogowski coil and voltage connector onto the base in the cable testing device, the problem of repeatedly disassembling and reassembling the alligator clips and Rogowski coil in the prior art is solved, achieving a more efficient cable testing operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN QIANHAI SHEKOU FREE TRADE ZONE POWER SUPPLY CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-05-19
AI Technical Summary
Existing cable testing devices require repeated disassembly and reassembly of alligator clips and Rogowski coils when testing different cables, which is cumbersome and has low testing efficiency.
A detection assembly was designed, including a base and multiple detection units arranged at intervals. Current terminals and voltage terminals are set on the base, and Rogowski coils and voltage connectors are integrated on the base. The assembly is electrically connected to the energy meter through the current terminals and voltage terminals, simplifying the disassembly and assembly process.
It improves the efficiency of cable testing, simplifies the operation process, and enhances the stability and convenience of the testing device.
Smart Images
Figure CN224263300U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable testing technology, and in particular to a testing component and a cable testing device. Background Technology
[0002] Rogowski coils are non-contact current measurement and signal conversion based on the principle of electromagnetic induction. They use a uniformly wound hollow coil to convert the measured current (DC, AC, pulse current, etc.) into a voltage signal proportionally (the output voltage is proportional to the derivative of the current, and after integration, it is proportional to the current), thus achieving high-precision current measurement.
[0003] An existing cable testing device includes a Rogowski coil, an electricity meter, and an alligator clip. When testing a cable, the input end of the alligator clip is installed on the electricity meter, the output end of the alligator clip is clamped onto the cable wire, the input end of the Rogowski coil is installed on the electricity meter, and the output end of the Rogowski coil is placed on the cable to be tested, avoiding contact between the inside of the Rogowski coil and the cable. This allows the current in the cable to be detected, thereby determining whether the cable is working properly.
[0004] However, existing cable testing devices require repeated disassembly and reassembly of alligator clips and Rogowski coils when testing different cables, which is cumbersome and results in low testing efficiency. Summary of the Invention
[0005] This utility model provides a detection component and a cable detection device, which aims to solve the problem that existing cable detection devices require repeated disassembly and reassembly of alligator clips and Rogowski coils when detecting different cables, resulting in cumbersome operation and low detection efficiency.
[0006] To address the aforementioned problems, this utility model provides a detection component, including a base and multiple detection units arranged at intervals. Each detection unit includes a current terminal, a voltage terminal, a Rogowski coil, and a first voltage connector. The current terminal and the voltage terminal are spaced apart on the base. The Rogowski coil has an output lead and a loop coil. One end of the output lead is connected to the loop coil, and the other end of the output lead is electrically connected to the current terminal. The loop coil is adapted to be sleeved on the cable to be tested.
[0007] The first voltage connector has a first wire and a first conductive clip. One end of the first wire is electrically connected to the voltage terminal, and the other end of the first wire is electrically connected to the first conductive clip. The first conductive clip is adapted to hold the cable to be tested. The current terminal is adapted to be inserted into the current socket of the energy meter, and the voltage terminal is adapted to be inserted into the voltage socket of the energy meter.
[0008] Optionally, in the same detection unit, there are two current terminals, and the output lead has a positive output terminal and a negative output terminal. The positive output terminal is connected to one of the current terminals, and the negative output terminal is connected to the other current terminal.
[0009] Optionally, in the same detection unit, the two current terminals and the voltage terminal are arranged in a triangular pattern.
[0010] Optionally, the output lead is fixedly connected to the current terminal, and the first wire is fixedly connected to the voltage terminal.
[0011] Optionally, the output lead is soldered to the current terminal, and the first wire is soldered to the voltage terminal.
[0012] Optionally, the plurality of detection units include an A-phase detection unit, a B-phase detection unit, and a C-phase detection unit;
[0013] The first conductive clip in the A-phase detection unit is adapted to hold the A-phase cable in a three-phase AC power supply.
[0014] The first conductive clip in the B-phase detection unit is adapted to hold the B-phase cable in a three-phase AC power supply.
[0015] The first conductive clamp in the C-phase detection unit is adapted to hold the C-phase cable in a three-phase AC power supply.
[0016] Optionally, the detection assembly further includes a neutral wire unit, which includes a neutral wire terminal and a second voltage connector. The neutral wire unit is spaced apart from the detection unit and is connected to the base.
[0017] The second voltage connector has a second wire and a second conductive clip. One end of the second wire is electrically connected to the neutral terminal, and the other end of the second wire is electrically connected to the second conductive clip. The second conductive clip is adapted to hold the cable to be tested, and the neutral terminal is adapted to be inserted into the neutral socket of the energy meter.
[0018] Optionally, the second conductor is fixedly connected to the neutral terminal.
[0019] Optionally, the second conductor is soldered to the neutral terminal.
[0020] According to the detection component provided in this embodiment of the utility model, the current terminal and voltage terminal are disposed on the base, so that the energy meter can be installed on the base, and the current terminal is inserted into the current socket of the energy meter, and the voltage terminal is inserted into the voltage socket of the energy meter. The Rogowski coil and the first voltage connector are integrated on the base, and the Rogowski coil and the first voltage connector are electrically connected to the energy meter through the current terminal and voltage terminal on the base, which is convenient for disassembly and assembly and improves detection efficiency.
[0021] This utility model embodiment also provides a cable testing device, including an electricity meter and the above-mentioned testing components. The electricity meter has a current socket, a voltage socket and a neutral wire socket. The current terminal is plugged into the current socket, the voltage terminal is plugged into the voltage socket, and the neutral wire terminal is plugged into the neutral wire socket. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.
[0023] Figure 1 This is a schematic diagram of the structure of a detection component provided in an embodiment of the present invention.
[0024] Instruction manual drawing reference numerals: 1. Base; 2. Detection unit; 3. Phase A detection unit; 4. Phase B detection unit; 5. Phase C detection unit; 6. Current terminal; 7. Voltage terminal; 8. First voltage connector; 9. First wire; 10. First conductive clip; 11. Rogowski coil; 12. Loop coil; 13. Output lead; 14. Positive output terminal; 15. Negative output terminal; 16. Neutral wire unit; 17. Neutral wire terminal; 18. Second voltage connector; 19. Second wire; 20. Second conductive clip. Detailed Implementation
[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] One embodiment of this utility model provides a cable detection device, including an electricity meter (not shown in the figure) and a cable testing device. Figure 1 The detection assembly shown has a current socket, a voltage socket, and a neutral wire socket. The detection assembly includes a base 1 and multiple detection units 2 arranged at intervals. Each detection unit 2 includes a current terminal 6, a voltage terminal 7, a Rogowski coil 11, and a first voltage connector 8. The current terminal 6 and the voltage terminal 7 are spaced apart on the base 1. The Rogowski coil 11 has an output lead 13 and a loop coil 12. One end of the output lead 13 is connected to the loop coil 12, and the other end of the output lead 13 is electrically connected to the current terminal 6. The loop coil 12 is suitable for being sleeved on the cable to be tested.
[0028] The first voltage connector 8 has a first conductor 9 and a first conductive clip 10. One end of the first conductor 9 is electrically connected to the voltage terminal 7, and the other end of the first conductor 9 is electrically connected to the first conductive clip 10. The first conductive clip 10 is adapted to hold the cable to be tested. The current terminal 6 is adapted to be inserted into the current socket of the energy meter, and the voltage terminal 7 is adapted to be inserted into the voltage socket of the energy meter.
[0029] In this embodiment, the current terminal 6 and the voltage terminal 7 are disposed on the base 1. In use, the energy meter can be installed on the base 1, so that the current terminal 6 is inserted into the current socket of the energy meter and the voltage terminal 7 is inserted into the voltage socket of the energy meter. The Rogowski coil 11 and the first voltage connector 8 are integrated on the base 1. The Rogowski coil 11 and the first voltage connector 8 are electrically connected to the energy meter through the current terminal 6 and the voltage terminal 7 on the base 1, which is convenient for disassembly and assembly and improves detection efficiency.
[0030] In this embodiment, the electricity meter is existing technology and will not be described in detail here.
[0031] In this embodiment, the first voltage connector 8 is actually a conductive alligator clip in the prior art, and the Rogowski coil 11 is also in the prior art; its working principle will not be described in detail here.
[0032] In one embodiment, the same detection unit 2 has two current terminals 6, and the output lead 13 has a positive output terminal 14 and a negative output terminal 15. The positive output terminal 14 is connected to one of the current terminals 6, and the negative output terminal 15 is connected to the other current terminal 6.
[0033] In this embodiment, both the positive output terminal 14 and the negative output terminal 15 are located at the end of the output lead 13 furthest from the annular coil 12. The positive output terminal 14 is connected to one of the two current terminals 6 in the same detection unit 2, and the negative output terminal 15 is connected to the other. The two current terminals 6 facilitate the installation of the Rogowski coil 11.
[0034] In one embodiment, in the same detection unit 2, two current terminals 6 and voltage terminals 7 are arranged in a triangular pattern.
[0035] In this embodiment, in the same detection unit 2, the current terminals 6 and voltage terminals 7 are arranged in a triangular pattern. The voltage terminals 7 and the two current terminals 6 are respectively arranged at the vertices of the same triangle, and the distance between the voltage terminals 7 and the two current terminals 6 is the same. This reduces the interval between the current terminals 6 and the voltage terminals 7, and reduces the size of the base 1, making it easier to design and manufacture.
[0036] In one embodiment, the output lead 13 is fixedly connected to the current terminal 6, and the first wire 9 is fixedly connected to the voltage terminal 7.
[0037] In this embodiment, the output lead 13 is fixed to the current terminal 6, and the first wire 9 is fixed to the voltage terminal 7 to prevent the Rogowski coil 11 and the first voltage connector 8 from falling off, thereby improving the stability of the detection component.
[0038] In one embodiment, the output lead 13 is welded to the current terminal 6, and the first wire 9 is welded to the voltage terminal 7.
[0039] In this embodiment, the end of the output lead 13 away from the annular coil 12 is welded to the current terminal 6, and the first wire 9 is welded to the voltage terminal 7 for easy connection.
[0040] In one embodiment, the plurality of detection units 2 include an A-phase detection unit 3, a B-phase detection unit 4, and a C-phase detection unit 5.
[0041] The first conductive clip 10 in the A-phase detection unit 3 is suitable for clamping the A-phase cable in a three-phase AC power supply.
[0042] The first conductive clip 10 in the B-phase detection unit 4 is suitable for clamping the B-phase cable in a three-phase AC power supply.
[0043] The first conductive clip 10 in the C-phase detection unit 5 is suitable for clamping the C-phase cable in a three-phase AC power supply.
[0044] In this embodiment, the three-phase detection unit 2 is adapted to detect three-phase alternating current.
[0045] In one embodiment, the detection assembly further includes a neutral wire unit 16, which includes a neutral wire terminal 17 and a second voltage connector 18. The neutral wire unit 16 is spaced apart from the detection unit 2 and is connected to the base 1.
[0046] The second voltage connector 18 has a second conductor 19 and a second conductive clip 20. One end of the second conductor 19 is electrically connected to the neutral terminal 17, and the other end of the second conductor 19 is electrically connected to the second conductive clip 20. The second conductive clip 20 is adapted to hold the cable to be tested, and the neutral terminal 17 is adapted to be inserted into the neutral socket of the energy meter.
[0047] In one embodiment, the second wire 19 is fixedly connected to the neutral terminal 17. This prevents the second voltage connector 18 from detaching and improves the stability of the detection component.
[0048] In one embodiment, the second wire 19 is soldered to the neutral terminal 17 for easy connection.
[0049] The cable detection device provided in this embodiment of the utility model, when in use:
[0050] First, move base 1 to the vicinity of the cable to be tested, and install the energy meter on base 1, so that the voltage terminals 7 of the three detection units 2 are plugged into the voltage sockets of the energy meter, the current terminals 6 are plugged into the current sockets, and the neutral terminal 17 is plugged into the neutral sockets. Then, place the Rogowski coil 11 of phase A detection unit 3 on the phase A line of the cable to be tested, place the Rogowski coil 11 of phase B detection unit 4 on the phase B line of the cable to be tested, and place the Rogowski coil 11 of phase C detection unit 5 on the phase C line of the cable to be tested. The first conductive clip 10 of the A-phase detection unit 3 is clamped onto the A-phase line of the cable to be tested, the first conductive clip 10 of the B-phase detection unit 4 is clamped onto the B-phase line of the cable to be tested, the first conductive clip 10 of the C-phase detection unit 5 is clamped onto the C-phase line of the cable to be tested, and the second conductive clip 20 of the neutral wire unit 16 is clamped onto the neutral wire of the cable to be tested. The energy meter is then switched to the range for measuring current. At this time, the reading on the energy meter is the current of the measured line.
[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] According to the detection component provided in this embodiment of the utility model, the current terminal 6 and the voltage terminal 7 are disposed on the base 1, so that the energy meter can be installed on the base 1, and the current terminal 6 is inserted into the current socket of the energy meter, and the voltage terminal 7 is inserted into the voltage socket of the energy meter. The Rogowski coil 11 and the first voltage connector 8 are integrated on the base 1. The Rogowski coil 11 and the first voltage connector 8 are electrically connected to the energy meter through the current terminal 6 and the voltage terminal 7 on the base 1, which is convenient for disassembly and assembly and improves detection efficiency.
[0053] In addition, one embodiment of this utility model also provides the above-mentioned detection component.
[0054] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. A detection assembly comprising: The device includes a base (1) and multiple detection units (2) arranged at intervals. Each detection unit (2) includes a current terminal (6), a voltage terminal (7), a Rogowski coil (11), and a first voltage connector (8). The current terminal (6) and the voltage terminal (7) are arranged at intervals on the base (1). The Rogowski coil (11) has an output lead (13) and a loop coil (12). One end of the output lead (13) is connected to the loop coil (12), and the other end of the output lead (13) is electrically connected to the current terminal (6). The loop coil (12) is adapted to be sleeved on the cable to be tested. The first voltage connector (8) has a first wire (9) and a first conductive clip (10). One end of the first wire (9) is electrically connected to the voltage terminal (7), and the other end of the first wire (9) is electrically connected to the first conductive clip (10). The first conductive clip (10) is adapted to hold the cable to be tested. The current terminal (6) is adapted to be inserted into the current socket of the energy meter, and the voltage terminal (7) is adapted to be inserted into the voltage socket of the energy meter.
2. The detection assembly of claim 1, wherein, In the same detection unit (2), there are two current terminals (6), and the output lead (13) is provided with a positive output terminal (14) and a negative output terminal (15). The positive output terminal (14) is connected to one of the current terminals (6), and the negative output terminal (15) is connected to the other current terminal (6).
3. The detection assembly of claim 2, wherein, In the same detection unit (2), the two current terminals (6) and the voltage terminal (7) are arranged in a triangle.
4. The detection assembly of claim 1, wherein, The output lead (13) is fixedly connected to the current terminal (6), and the first wire (9) is fixedly connected to the voltage terminal (7).
5. The detection assembly of claim 4, wherein, The output lead (13) is welded to the current terminal (6), and the first wire (9) is welded to the voltage terminal (7).
6. The detection assembly of claim 1, wherein, The plurality of detection units (2) include an A-phase detection unit (3), a B-phase detection unit (4), and a C-phase detection unit (5); The first conductive clip (10) in the A-phase detection unit (3) is adapted to hold the A-phase cable in the three-phase AC power supply; The first conductive clip (10) in the B-phase detection unit (4) is adapted to hold the B-phase cable in the three-phase AC power supply; The first conductive clip (10) in the C-phase detection unit (5) is adapted to hold the C-phase cable in the three-phase AC power supply.
7. The detection assembly of claim 6, wherein, The detection assembly also includes a neutral wire unit (16), which includes a neutral wire terminal (17) and a second voltage connector (18). The neutral wire unit (16) is spaced apart from the detection unit (2) and is connected to the base (1). The second voltage connector (18) has a second conductor (19) and a second conductive clip (20). One end of the second conductor (19) is electrically connected to the neutral terminal (17), and the other end of the second conductor (19) is electrically connected to the second conductive clip (20). The second conductive clip (20) is adapted to hold the cable to be tested, and the neutral terminal (17) is adapted to be inserted into the neutral socket of the energy meter.
8. The detection assembly of claim 7, wherein, The second conductor (19) is fixedly connected to the neutral terminal (17).
9. The detection assembly of claim 8, wherein, The second conductor (19) is welded to the neutral terminal (17).
10. A cable detection apparatus, characterized by, The device includes an energy meter and the detection component described in any one of claims 1 to 9. The energy meter has a current socket, a voltage socket and a neutral wire socket. The current terminal (6) is plugged into the current socket, the voltage terminal (7) is plugged into the voltage socket and the neutral wire terminal (17) is plugged into the neutral wire socket.