Current transformer convenient to install
By setting an installation plate and a snap-fit assembly at the bottom of the current transformer body, quick installation and disassembly can be achieved using elastic snap-fits, which solves the problem of time-consuming and labor-intensive disassembly and assembly of traditional current transformers and improves the efficiency of maintenance and replacement.
Patent Information
- Application Number
- CN202423205043.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Traditional current transformers are time-consuming and labor-intensive to disassemble and assemble, which is not conducive to rapid maintenance and replacement.
A mounting plate is installed at the bottom of the current transformer body, and equipped with a snap-fit assembly, including an L-shaped snap block, a compression rod and a compression spring, which enables quick installation and removal through the elastic engagement of the snap-fit assembly.
It enables rapid installation and removal of current transformers, improving maintenance and replacement efficiency.
Smart Images

Figure CN223941618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of current transformers, specifically a current transformer that is easy to install. Background Technology
[0002] A current transformer is an instrument that measures a large primary current by converting a small secondary current into a large primary current based on the principle of electromagnetic induction. Its main structure includes an iron core, windings, terminals, a housing, and a base. The current transformer is mounted on a support frame by screws. Traditionally, the current transformer can only be removed by unscrewing the screws, which is time-consuming and laborious, and not conducive to quick maintenance and replacement. How to install it quickly and conveniently is a technical problem that we urgently need to solve.
[0003] To address the aforementioned issues, we propose an easy-to-install current transformer that improves upon the shortcomings of existing technologies. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a current transformer that is easy to install. In order to solve the above-mentioned technical problem, this utility model provides the following technical solution:
[0005] This utility model discloses an easy-to-install current transformer, comprising a current transformer body, a mounting plate at the bottom of the current transformer body, and a mounting base detachably connected to the bottom of the mounting plate. L-shaped slots are provided at both ends of the mounting base. A snap-fit assembly is provided on the mounting plate, the snap-fit assembly comprising an L-shaped locking block, an inner plate one, an inner plate two, guide pins, a pressing rod, a pressing spring, and a top rod. Inner grooves are provided at both ends of the mounting plate, and L-shaped locking blocks that can slide laterally are inserted into the inner grooves. Inner plates one and two are also provided in the inner grooves. Two guide pins are fixed to the side of inner plate one facing the L-shaped locking block, and the upper part of the L-shaped locking block is sleeved on the two guide pins and can slide laterally. A removable pressing rod is inserted into inner plate two, one end of which is fixed to the L-shaped locking block, and a pressing spring is also sleeved on the pressing rod. A removable top rod is inserted into inner plate one.
[0006] Preferably, the bottom of the mounting plate is provided with a sliding groove, and the L-shaped block can slide laterally along the sliding groove.
[0007] Preferably, the other end of the compression rod is fixed with an end plate, and the two ends of the compression spring are respectively fixed to the inner plate and the end plate.
[0008] Preferably, the end of the mounting plate is provided with a tamping hole communicating with the inner groove, and the top rod is directly facing the tamping hole, with the inner end of the top rod fixed to the L-shaped locking block.
[0009] Preferably, threaded holes are provided at the four corners of the mounting base.
[0010] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0011] By installing a mounting plate fixedly connected to the bottom of the current transformer body, and using a snap-fit assembly to connect the mounting plate to the mounting base, an L-shaped slot is provided on the mounting base, and a sliding L-shaped locking block is provided on the mounting plate. When installing the current transformer body, pushing the L-shaped locking block inward compresses the compression spring and moves the L-shaped locking block into the L-shaped slot. Then, releasing the L-shaped locking block allows the compression spring to push it outward, automatically locking the L-shaped locking block into the L-shaped slot. This secures the mounting plate, which is integrated with the current transformer body, onto the mounting base. For disassembly, simply pushing the L-shaped locking block inward removes it from the mounting base, allowing the current transformer body to be removed. This current transformer optimizes and improves upon existing structures, enabling quick and convenient installation and disassembly, and improving maintenance and replacement efficiency, thus overcoming the shortcomings of existing technologies. Attached Figure Description
[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a partial cross-sectional structural diagram of the mounting plate in this utility model;
[0015] Figure 3 This is a partial cross-sectional structural diagram of the mounting base in this utility model;
[0016] Figure 4 This is a schematic diagram of the structure during installation of this utility model;
[0017] Figure 5 This is a structural diagram of the present invention during disassembly.
[0018] In the diagram: 1. Current transformer body; 2. Mounting plate; 3. Mounting base; 4. L-shaped slot; 5. Inner groove; 6. L-shaped block; 7. Inner plate one; 8. Inner plate two; 9. Guide slide column; 10. Compression rod; 11. End plate; 12. Compression spring; 13. Top rod; 14. Tamping hole; 15. Threaded hole. Detailed Implementation
[0019] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention. Example
[0020] like Figure 1-5 As shown, an easy-to-install current transformer includes a current transformer body 1. A mounting plate 2 is provided at the bottom of the current transformer body 1, and a mounting base 3 is detachably connected to the bottom of the mounting plate 2. L-shaped slots 4 are provided at both ends of the mounting base 3. A snap-fit assembly is provided on the mounting plate 2, comprising an L-shaped locking block 6, an inner plate 1 7, an inner plate 2 8, a guide slide post 9, a compression rod 10, a compression spring 12, and a top rod 13. Inner grooves 5 are provided at both ends of the mounting plate 2, and L-shaped locking blocks 6 that can slide laterally are inserted into the inner grooves 5. The inner grooves 5 also... The device is equipped with an inner plate 7 and an inner plate 8. Two guide slides 9 are fixed on the side of the inner plate 7 facing the L-shaped locking block 6. The upper part of the L-shaped locking block 6 is sleeved on the two guide slides 9 and can slide laterally along them. A removable pressing rod 10 is inserted into the inner plate 8. One end of the pressing rod 10 is fixed to the L-shaped locking block 6. A pressing spring 12 is also sleeved on the pressing rod 10. A removable top rod 13 is inserted into the inner plate 7. The device forms an integrated current transformer structure that is easy to install, allowing for quick and convenient disassembly and assembly, and improving maintenance and replacement efficiency.
[0021] In this embodiment, a sliding groove is also provided at the bottom of the mounting plate 2, and the L-shaped card block 6 can slide laterally along the sliding groove to ensure that the L-shaped card block 6 can be moved.
[0022] In this embodiment, the other end of the compression rod 10 is fixed with an end plate 11, and the two ends of the compression spring 12 are respectively fixed to the inner plate 8 and the end plate 11. The compression spring 12 is used to move and reset the L-shaped card block 6.
[0023] In this embodiment, the end of the mounting plate 2 is provided with a tamping hole 14 that communicates with the inner groove 5, and the top rod 13 is directly facing the tamping hole 14. The inner end of the top rod 13 is fixed on the L-shaped card block 6, and the L-shaped card block 6 can be moved by inserting a screwdriver into the inner groove 5.
[0024] In this embodiment, threaded holes 15 are provided at the four corners of the mounting base 3 for mounting the current transformer body 1 onto the bracket plate.
[0025] The principle and advantages of this utility model are as follows: First, the mounting base 3 is installed on the support plate through the threaded hole 15 by a screw, and then the mounting plate 2 is installed on the mounting base 3. The installation steps are as follows: Figure 4As shown, insert a screwdriver into the inner groove 5 through the tamping hole 14, and use the inner end of the screwdriver to push the push rod 13 inward. The push rod 13 pushes the L-shaped locking block 6 inward, and the L-shaped locking block 6 moves inward along the guide slide post 9. The compression spring 12 is compressed. Then, place the mounting plate 2 flat on the mounting base 3, and let the L-shaped locking block 6 insert into the L-shaped locking groove 4. Then, pull out the screwdriver, and the compression spring 12 extends and resets. Push the L-shaped locking block 6 outward, so that the L-shaped locking block 6 is firmly locked in the L-shaped locking groove 4, thereby installing the current transformer body 1 on the mounting base 3. When disassembling the current transformer body 1, as follows... Figure 5 As shown, repeat the above operation, press the L-shaped card block 6 inward to shift it, and then remove it from the L-shaped card slot 4 to remove it.
[0026] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A current transformer that is easy to install, comprising a current transformer body (1), characterized in that: The bottom of the current transformer body (1) is provided with a mounting plate (2), and the bottom of the mounting plate (2) is detachably connected to a mounting base (3). The mounting base (3) has L-shaped slots (4) at both ends. The mounting plate (2) is provided with a buckle assembly, which includes an L-shaped buckle block (6), an inner plate one (7), an inner plate two (8), a guide slide (9), a pressing rod (10), a pressing spring (12), and a top rod (13). The two ends of the mounting plate (2) are provided with inner grooves (5), and an L-shaped slidable along the inner groove (5) is inserted in the inner groove (5). The inner groove (5) is also provided with an inner plate 1 (7) and an inner plate 2 (8). The inner plate 1 (7) has two guide slides (9) fixed on the side facing the L-shaped block (6). The upper part of the L-shaped block (6) is sleeved on the two guide slides (9) and can slide laterally along them. The inner plate 2 (8) is provided with a removable extrusion rod (10). One end of the extrusion rod (10) is fixed on the L-shaped block (6). The extrusion rod (10) is also sleeved with an extrusion spring (12). The inner plate 1 (7) is provided with a removable push rod (13).
2. The easy-to-install current transformer as described in claim 1, characterized in that: The bottom of the mounting plate (2) is also provided with a sliding groove, and the L-shaped card block (6) can slide laterally along the sliding groove.
3. The easy-to-install current transformer as described in claim 1, characterized in that: The other end of the compression rod (10) is fixed with an end plate (11), and the two ends of the compression spring (12) are respectively fixed to the inner plate (8) and the end plate (11).
4. The easy-to-install current transformer as described in claim 1, characterized in that: The mounting plate (2) has a tamping hole (14) at its end that communicates with the inner groove (5), and the top rod (13) is directly facing the tamping hole (14). The inner end of the top rod (13) is fixed on the L-shaped card block (6).
5. The easy-to-install current transformer as described in claim 1, characterized in that: The mounting base (3) has threaded holes (15) at its four corners.