High-consistency flexible current probe coil

Abstract

The utility model provides a high-consistency flexible current probe coil, and belongs to the technical field of measurement and testing. The high-consistency flexible current probe coil comprises a fixing assembly and a connecting assembly, an identification heat-shrinkable sleeve is connected with a T-shaped pipe connector in a sliding mode, the identification heat-shrinkable sleeve makes contact with a rubber ring, a standard air pipe is used, manufacturing tools are standardized, process differences are reduced, assembling is facilitated, the standard air pipe is made of PVC materials and is not prone to damage, and the production cost is reduced. The protection of the coil is facilitated, the assembly is facilitated by using the T-shaped pipe connector, the design of the inner sleeve rubber ring can clamp the air pipe, so that the coil is not easy to fall off to influence the precision, the coil interface is used, the connection with the flexible current probe integral plate is convenient, the rapid replacement and installation are realized, the welding is avoided, and the precision is improved; therefore, a user is reminded that the coil is plugged in place, the result consistency of repeated testing is improved, errors are reduced, and the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of measurement and testing, and more specifically, to a highly consistent flexible current probe coil. Background Technology

[0002] As we all know, there are many methods for measuring alternating current, especially for measuring mains power. Current transformers are the most widely used. However, existing high-consistency flexible current probe coils often have problems during the manufacturing process. For example, the use of heat-shrink tubing as the outer layer of the coil may result in gaps that affect the test accuracy. Heat-shrink tubing is also relatively easy to damage and does not protect the coil. The welding method used to connect the current probe integrating plate is not conducive to installation and replacement. Furthermore, the lack of proper marking at the end of the coil makes it impossible to guarantee the consistency of test results. Utility Model Content

[0003] To overcome the above shortcomings, this application provides a highly consistent flexible current probe coil, aiming to improve existing highly consistent flexible current probe coils. Typically, during the manufacturing process of flexible current probes, gaps may exist due to the use of heat shrink tubing as the outer layer of the coil for protection, which may affect the test accuracy. Furthermore, the heat shrink tubing is relatively easy to damage and does not provide adequate protection for the coil. Welding is used to connect the current probe integrating plate, which is not conducive to installation and replacement. The lack of proper marking at the end of the coil also makes it impossible to guarantee the consistency of test results.

[0004] This application provides a highly consistent flexible current probe coil including a fixing component and a connecting component.

[0005] The fixing assembly includes a probe body, a coil interface, and an SMA wire. The coil interface is located inside the probe body, and the SMA wire is located at one end of the coil interface. The connecting assembly includes an air tube, a heat-shrinkable tube for marking, a T-shaped connector, and an O-ring. The air tube is fixedly connected to the SMA wire. The heat-shrinkable tube for marking is located at one end of the air tube. The T-shaped connector is in contact with both the air tube and the SMA wire. The O-ring is located inside the T-shaped connector. The heat-shrinkable tube for marking is slidably connected to the T-shaped connector, and the heat-shrinkable tube for marking is in contact with the O-ring.

[0006] In one specific implementation, the T-tube connector includes a first housing cover and a second housing cover, with the second housing cover disposed on one side of the first housing cover.

[0007] In the above implementation process, the first and second shell covers adopt a split structure, which facilitates assembly and simplifies installation.

[0008] In one specific implementation, a limiting groove is provided inside the first shell cover, and the rubber ring contacts the limiting groove. A limiting block is correspondingly provided inside the first shell cover, and the limiting block contacts the rubber ring.

[0009] In the above implementation process, a limiting groove is provided inside the first shell cover. The rubber ring can be limited and fixed by both the limiting groove and the limiting block to prevent the rubber ring from shifting.

[0010] Compared with existing technologies, the beneficial effects of this application are as follows: First, the use of standard air tubing standardizes the manufacturing tools, reduces process differences, and facilitates assembly. The standard air tubing is made of PVC material, which is not easily damaged and helps protect the coil. The use of T-shaped tube connectors facilitates assembly and simplifies installation. Furthermore, the design of the inner rubber ring can hold the air tubing in place, preventing the coil from falling off and affecting accuracy. The use of a coil interface facilitates connection with the flexible current probe integrating board, enabling quick replacement and installation, avoiding welding, and improving accuracy. The use of heat shrink tubing for marking reminds users that the coil has been properly inserted or removed, improving the consistency of repeated test results, reducing errors, and thus improving practicality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a highly consistent flexible current probe coil structure provided in an embodiment of this application;

[0012] Figure 2 A schematic diagram of the T-tube connector structure provided in the embodiments of this application;

[0013] Figure 3 A schematic diagram of the first shell cover structure provided for an embodiment of this application.

[0014] In the diagram: 100 - Fixing component; 110 - Probe body; 120 - Coil interface; 130 - SMA cable; 200 - Connecting component; 210 - Air tube; 220 - Identifying heat shrink tubing; 230 - T-tube connector; 231 - First housing cover; 2311 - Limiting groove; 2312 - Limiting block; 232 - Second housing cover; 240 - Rubber ring. Detailed Implementation

[0015] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0017] Please see Figure 1-3 This application provides a highly consistent flexible current probe coil including a fixing component 100 and a connecting component 200.

[0018] Please see Figure 1 The fixing component 100 includes a probe body 110, a coil interface 120, and an SMA cable 130. The coil interface 120 is located inside the probe body 110, and the SMA cable 130 is located at one end of the coil interface 120. The standard coil interface 120 is used to facilitate connection with the flexible current probe integrating board, enabling quick replacement / installation, avoiding welding, and improving accuracy.

[0019] Please see Figure 1-3 The connecting assembly 200 includes an air tube 210, a heat-shrinkable tube 220 for marking, a T-shaped connector 230, and a rubber ring 240. The air tube 210 is fixedly connected to the SMA cable 130. The heat-shrinkable tube 220 for marking is disposed at one end of the air tube 210. The T-shaped connector 230 is in contact with both the air tube 210 and the SMA cable 130. The rubber ring 240 is disposed inside the T-shaped connector 230. The heat-shrinkable tube 220 for marking is slidably connected to the T-shaped connector 230, and the heat-shrinkable tube 220 is in contact with the rubber ring 240. For contact coil 240, traditionally heat shrink tubing is used. However, this process varies too much and is not conducive to assembly. Using standard air tubing 210 can standardize the manufacturing tools. When using heat shrink tubing, in order to allow for deformation, a large space is often required at the end, resulting in a large gap in the test coil and affecting accuracy. Using air tubing 210 can achieve a gap of 1mm, which is better than the 3mm of heat shrink tubing. The heat shrink tubing 220 is marked with a colored layer to remind the user that the coil has been inserted or removed properly.

[0020] In some specific implementations, the T-tube connector 230 includes a first cover 231 and a second cover 232. The second cover 232 is disposed on one side of the first cover 231. The first cover 231 and the second cover 232 adopt a split structure, which is conducive to assembly and simple installation. The first cover 231 is provided with a limiting groove 2311 inside, and the rubber ring 240 contacts the limiting groove 2311. A corresponding limiting block 2312 is provided inside the first cover 231, and the limiting block 2312 contacts the rubber ring 240. The limiting groove 2311 and the limiting block 2312 can limit and fix the rubber ring 240 to prevent the rubber ring 240 from shifting.

[0021] The working principle of this highly consistent flexible current probe coil is as follows: First, a standard air tube 210 is used to standardize the manufacturing tools, reduce process differences, and facilitate assembly. The standard air tube 210 is made of PVC material, which is not easily damaged and helps protect the coil. The first shell cover 231 and the second shell cover 232 adopt a split structure, which facilitates assembly and makes installation simple. The design of the inner rubber ring 240 can hold the air tube 210, making it difficult for the coil to fall off and affect accuracy. The coil interface 120 is used to facilitate connection with the flexible current probe integrating board, enabling quick replacement and installation, avoiding welding and improving accuracy. A color-coded heat shrink tubing 220 is used to mark the coil, reminding the user that it has been inserted or removed properly, improving the consistency of repeated test results, reducing errors, and thus improving practicality.

[0022] It should be noted that the specific model and specifications of the probe body 110 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0023] The power supply and principle of the probe body 110 are clear to those skilled in the art and will not be described in detail here.

[0024] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A highly consistent flexible current probe coil, characterized in that, include A fixing component (100) includes a probe body (110), a coil interface (120), and an SMA wire (130). The coil interface (120) is disposed inside the probe body (110), and the SMA wire (130) is disposed at one end of the coil interface (120). A connecting assembly (200) includes an air tube (210), a marking heat shrink tubing (220), a T-tube connector (230), and a rubber ring (240). The air tube (210) is fixedly connected to the SMA wire (130). The marking heat shrink tubing (220) is disposed at one end of the air tube (210). The T-tube connector (230) is in contact with both the air tube (210) and the SMA wire (130). The rubber ring (240) is disposed inside the T-tube connector (230). The marking heat shrink tubing (220) is slidably connected to the T-tube connector (230), and the marking heat shrink tubing (220) is in contact with the rubber ring (240).

2. The highly consistent flexible current probe coil according to claim 1, characterized in that, The T-tube connector (230) includes a first cover (231) and a second cover (232), with the second cover (232) disposed on one side of the first cover (231).

3. The highly consistent flexible current probe coil according to claim 2, characterized in that, The first cover (231) has a limiting groove (2311) inside, and the rubber ring (240) is in contact with the limiting groove (2311). The first cover (231) has a corresponding limiting block (2312) inside, and the limiting block (2312) is in contact with the rubber ring (240).

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