Connecting wire with Rogowski coil

Abstract

The utility model provides a connecting wire with a Rogowski coil. The connecting wire comprises an end shell and an inner cavity formed in the end shell. The power line is arranged at the bottom of the end shell; the back shell is detachably connected with the end shell; the positioning support plate is arranged at one end of the back shell; the Rogowski coil body is connected with the end shell; the limiting assembly is arranged on one side surface of the end shell and is used for clamping the first end of the Rogowski coil body; an annular lantern ring is arranged at the joint where the second end of the Rogowski coil body and the end shell are connected, the fastening ring is arranged at the bottom of the annular lantern ring, and the connecting accessory is arranged at the second end of the Rogowski coil body and extends into the inner cavity. According to the utility model, through the unique design and cooperative work of the components, high-precision measurement, enhanced durability and environmental adaptability are realized, and convenience in installation and maintenance, protection of the power line and the positioning connector and convenience in operation are realized.

Description

Technical Field

[0001] This utility model relates to a connecting wire with a Rogowski coil. Background Technology

[0002] A Rogowski coil, also known as a current measuring coil or differential current sensor, is a toroidal coil uniformly wound on a non-ferromagnetic material. The output signal is the differential of the current with respect to time. By integrating the output voltage signal through a circuit, the input current can be accurately reconstructed.

[0003] Refer to Chinese Patent Publication No. CN212693867U, which discloses a flexible Rogowski coil with adjustable output signal. This utility model includes a circular frame, the surface of which is covered by a protective shell. The protective shell is fixedly connected to the circular frame via fixing holes and screws and nuts. An integrally formed outer shell is provided on the outer surface of the protective shell away from the circular frame. A potentiometer is fixedly connected to the inner surface of the outer shell via screws and nuts. An adjustment knob is fixedly connected to the surface of the potentiometer and is electrically connected to the potentiometer. Coil enameled wire is wound around the outer surface of the circular frame.

[0004] The aforementioned patent has the advantages of enabling fine-tuning of the output signal and improving the accuracy of the center point of the flexible Rogowski coil to 0.5 level. However, it also has drawbacks, such as the inconvenience of disassembling the entire structure and the inability to control the distance the coil extends into the housing, which makes the use of the entire structure relatively limited. Utility Model Content

[0005] This invention provides a connecting wire with a Rogowski coil, which can effectively solve the above-mentioned problems.

[0006] This utility model is implemented as follows:

[0007] A connecting wire with a Rogowski coil, including

[0008] End shell, an inner cavity formed inside the end shell;

[0009] The power cord is located at the bottom of the end housing;

[0010] A back shell, which is detachably connected to the end shell; a positioning support plate disposed at one end of the back shell;

[0011] A Rogowski coil body, which is connected to the end shell;

[0012] A limiting component is disposed on one side of the end shell and is used to engage the first end of the Rogowski coil body;

[0013] An annular collar is provided at the node where the second end of the Rogowski coil body connects to the end shell. A fastening ring is provided at the bottom of the annular collar. A connecting fitting is provided at the second end of the Rogowski coil body and extends into the inner cavity. A movable positioning component is connected to the connecting fitting. An annular sliding plate is provided on one side of the connecting fitting. The annular sliding plate is sleeved with the Rogowski coil body, thereby allowing the Rogowski coil body to move up and down on the connecting fitting.

[0014] The beneficial effects of this utility model are:

[0015] (1) The Rogowski coil body in this utility model, through the synergistic action of the limiting component and the movable positioning component, can achieve precise up-and-down movement and positioning on the connecting accessories. This design not only ensures the stability and accuracy of the Rogowski coil body during the measurement process, but also enables the device to adapt to various different measurement needs, thereby improving the reliability and accuracy of the measurement results. Secondly, the design of the annular collar and fastening ring provides a solid support for the connection between the Rogowski coil body and the end shell, and the use of materials such as rubber or latex enhances the sealing of the connection. This sealing design effectively prevents external environmental factors, such as dust and moisture, from corroding the internal components, thereby improving the durability and environmental adaptability of the device and extending its service life. In addition, the detachable connection design of the end shell and the back shell, as well as the setting of the positioning support plate, greatly facilitates the installation and maintenance of the device. Users can easily disassemble and reassemble the device to perform necessary maintenance or replace parts. This not only improves the maintainability of the device, but also increases its flexibility, making it more convenient for users to install and maintain the device. Users can quickly adjust the device configuration according to actual needs. Furthermore, the design of the clamping ring and annular groove effectively protects the power cord and positioning connector, preventing breakage or loosening due to external forces. This design improves the stability and safety of the power connection, reduces the risk of failure due to power cord issues, and thus improves the reliability of the device. Finally, the sleeve design of the annular slide plate and the Rogowski coil body allows the Rogowski coil body to move easily on the connecting accessories, simplifying the device adjustment process and improving the user's operating experience. This design not only makes operation more convenient but also improves the device's response speed and flexibility, enabling users to quickly perform measurements and adjustments. In summary, through its unique design and the synergistic work of its components, this device achieves high-precision measurement, enhanced durability and environmental adaptability, easy installation and maintenance, protection of the power cord and positioning connector, and ease of operation. These beneficial effects collectively enhance the overall performance of the device and the user experience, enabling it to perform excellently in various application scenarios. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is the front view of this utility model.

[0018] Figure 2 This is a schematic diagram of the limiting component of this utility model.

[0019] Figure 3 This is a plan view showing the connection between the end shell and the power cord of this utility model.

[0020] Figure 4 This is a schematic diagram of the positioning support plate of this utility model.

[0021] Explanation of icon numbers:

[0022] 10. End shell; 100. Mounting component; 101. Mounting port; 102. Inner cavity; 103. Positioning pin; 104. Double-ended threaded rod; 105. Positioning port; 106. Elastic element;

[0023] 20. Back cover; 200. Positioning support plate; 2001. Opening; 2002. Clamping ring;

[0024] 30. Rogowski coil body;

[0025] 40. Limiting component; 400. Arc switch; 401. Bend plate; 402. Limiting seat; 403. Card interface; 404. Anti-slip texture;

[0026] 50. Positioning joint; 501. Annular groove;

[0027] 60. Power cord; 601. Rubber sheath;

[0028] 70. Ring-shaped collar; 700. Screw; 701. Fastening ring; 702. Connecting accessory; 703. Slide plate. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0030] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Reference Figure 1-4 As shown, a connecting wire with a Rogowski coil includes...

[0032] End shell 10, with an inner cavity 102 formed inside the end shell 10;

[0033] A power cord 60 is located at the bottom of the end housing 10;

[0034] A back shell 20 is detachably connected to the end shell 10; a positioning support plate 200 is provided at one end of the back shell 20;

[0035] Rogowski coil body 30, which is connected to the end shell 10;

[0036] A limiting component 40 is disposed on one side of the end shell 10 and is used to engage the first end of the Rogowski coil body 30.

[0037] An annular collar 70 is provided at the node where the second end of the Rogowski coil body 30 connects to the end shell 10, and a fastening ring 701 is provided at the bottom of the annular collar 70. Further, the fastening ring 701 is made of rubber or latex. In one embodiment, the fastening ring 701 is made of rubber. A connecting fitting 702 is provided at the second end of the Rogowski coil body 30 and extends into the inner cavity 102; a movable positioning component is connected to the connecting fitting 702; and an annular sliding plate 703 is provided on one side of the connecting fitting 702. The annular sliding plate 703 is sleeved with the Rogowski coil body 30, thereby allowing the Rogowski coil body 30 to move up and down on the connecting fitting 702. Furthermore, the Rogowski coil body 30 is connected to the connecting fitting 702 via the annular sliding plate 703. After the Rogowski coil body 30 slides up and down via the annular sliding plate 703, it can be clamped and tightened by the annular collar 70 and a screw 700.

[0038] Furthermore, the fastening ring 701 can form a tight contact with the inner cavity 102, and the rubber fastening ring 701 can improve the sealing performance of the connection due to its deformation effect.

[0039] One end of the end shell 10 has a mounting port 101, which is engaged with the positioning support plate 200.

[0040] The movable positioning assembly includes a positioning opening 105 formed on one side of the end shell 10, a double-threaded rod 104 inserted through the positioning opening 105, and an elastic element 106 arranged around the inner wall of the positioning opening 105. The inner diameter of the positioning opening 105 is larger than the outer diameter of the double-threaded rod 104. This arrangement ensures that the double-threaded rod 104 has a buffer space, thus providing a cushioning effect when the Rogowski coil body 30 is pulled by external force, preventing it from being directly torn off.

[0041] It should be noted that the two ends of the double-threaded rod 104 are threaded, but the middle part is not threaded.

[0042] The bottom of the inner cavity 102 is provided with a positioning post 103 for supporting the connecting accessory 702. This is to ensure that the hole on the connecting accessory 702 can be quickly aligned with the positioning port 105, thus achieving a positioning effect.

[0043] One end of the positioning support plate 200 has an opening 2001 adapted to the positioning connector 50 connected to the power cord 60. A clamping ring 2002 is provided on the opening 2001, and the clamping ring 2002 engages with the annular groove 501 formed on the positioning connector 50 to prevent the power cord 60 from coming off. The inner ring of the clamping ring 2002 has an annular protrusion adapted to the annular groove 501, so that the annular protrusion can be embedded in the annular groove 501, protecting the positioning connector 50 connected to the power cord 60 from breakage or loosening.

[0044] The limiting component 40 includes an arc switch 400, a bent plate 401 connected to the arc switch 400, a limiting seat 402 disposed at one end of the bent plate 401, a card interface 403 formed at one end of the limiting seat 402, and anti-slip texture 404 disposed on the outer surface of the arc switch 400.

[0045] The other end of the power cord 60 is provided with a rubber sleeve 601. This is to gather and wrap the protruding terminals inside the power cord 60 at any time, thereby achieving the effect of protection and cable management.

[0046] Working principle:

[0047] The power cord 60 is connected to the device via the positioning connector 50 and the clamping ring 2002, providing the necessary power support. The end shell 10 and the back shell 20 together constitute the main structure of the device. The inner cavity 102 inside the end shell 10 is used to accommodate the connecting fitting 702 and a part of the Rogowski coil body 30. One end of the Rogowski coil body 30 is fixed to the side of the end shell 10 via the limiting component 40, and its second end is connected to the end shell 10 via the annular collar 70 and the fastening ring 701. The rubber material of the fastening ring 701 not only provides a tight seal. Furthermore, its deformation effect improves the stability of the connection. The connecting accessory 702 moves up and down through a movable positioning component, which includes a positioning port 105, a double-threaded rod 104, and an elastic element 106. The inner diameter of the positioning port 105 is slightly larger than the outer diameter of the double-threaded rod 104, providing a buffer space for the double-threaded rod 104. When the Rogowski coil body 30 is pulled by an external force, the elastic element 106 can provide a buffering effect, preventing the Rogowski coil body 30 from being directly torn off. The bottom of the connecting accessory 702 is positioned by a positioning component. The column 103 provides support, ensuring quick alignment with the positioning port 105 and improving positioning accuracy. The positioning support plate 200 is connected to the mounting port 101 of the end shell 10 via a snap-fit, providing additional support and stability. One end of the positioning support plate 200 has an opening 2001 adapted to the positioning connector 50 connected to the power cord 60. The clamping ring 2002 snaps into the annular groove 501 formed on the positioning connector 50, ensuring that the power cord 60 is not dislodged. The inner ring of the clamping ring 2002 is provided with an annular protrusion adapted to the annular groove 501, so that the annular protrusion is embedded in the annular groove 501, protecting the positioning connector 50 connected to the power cord 60 from breakage or loosening. Through the coordinated work of the various structures, the entire device achieves precise positioning and stable installation of the Rogowski coil body 30, ensuring the accuracy and reliability of the measurement process. At the same time, the sealing design and buffer structure improve the stability and durability of the device in various environments. The rubber sheath 601 of the power cord 60 protects the terminals and wiring harness, further improving the safety and practicality of the device.

[0048] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connecting wire with a Rogowski coil, characterized in that, include End shell (10), and an inner cavity (102) formed inside the end shell (10); A power cord (60) is provided at the bottom of the end housing (10); A back shell (20) is detachably connected to the end shell (10); a positioning support plate (200) is provided at one end of the back shell (20); Rogowski coil body (30), which is connected to the end shell (10); A limiting component (40) is disposed on one side of the end shell (10) and is used to engage the first end of the Rogowski coil body (30); An annular collar (70) is provided at the node where the second end of the Rogowski coil body (30) connects to the end shell (10). A fastening ring (701) is provided at the bottom of the annular collar (70). A connecting fitting (702) is provided at the second end of the Rogowski coil body (30) and extends into the inner cavity (102). A movable positioning component is connected to the connecting fitting (702). An annular slide plate (703) is provided on one side of the connecting fitting (702). The annular slide plate (703) is sleeved with the Rogowski coil body (30), thereby allowing the Rogowski coil body (30) to move up and down on the connecting fitting (702).

2. A connecting wire with a Rogowski coil according to claim 1, characterized in that, One end of the end shell (10) is formed with a mounting port (101), which is engaged with the positioning support plate (200).

3. A connecting wire with a Rogowski coil according to claim 1, characterized in that, The active positioning component includes a positioning port (105) formed on one side of the end shell (10), a double-threaded rod (104) inserted through the positioning port (105), and an elastic element (106) arranged around the inner wall of the positioning port (105).

4. A connecting wire with a Rogowski coil according to claim 1, characterized in that, The bottom of the inner cavity (102) is provided with a positioning post (103) for supporting the connecting fitting (702).

5. A connecting wire with a Rogowski coil according to claim 1, characterized in that, One end of the positioning support plate (200) has an opening (2001) adapted to the positioning connector (50) connected to the power cord (60), and a clamping ring (2002) is provided on the opening (2001). The clamping ring (2002) engages with the annular groove (501) formed on the positioning connector (50) to prevent the power cord (60) from detaching.

6. A connecting wire with a Rogowski coil according to claim 1, characterized in that, The limiting component (40) includes an arc switch (400), a bent plate (401) connected to the arc switch (400), a limiting seat (402) disposed at one end of the bent plate (401), a card interface (403) formed at one end of the limiting seat (402), and anti-slip texture (404) disposed on the outer surface of the arc switch (400).

7. A connecting wire with a Rogowski coil according to claim 1, characterized in that, The other end of the power cord (60) is provided with a rubber sheath (601).

8. A connecting wire with a Rogowski coil according to claim 5, characterized in that, The inner ring of the clamping ring (2002) is provided with an annular protrusion that is adapted to the annular groove (501).

9. A connecting wire with a Rogowski coil according to claim 3, characterized in that, The inner diameter of the positioning port (105) is larger than the outer diameter of the double-threaded rod (104).

10. A connecting wire with a Rogowski coil according to claim 1, characterized in that, The fastening ring (701) is made of rubber or latex.

Images