Current transformer convenient to install

Abstract

The utility model relates to the technical field of current transformers, and provides a current transformer convenient to install, which comprises a placing frame, a supporting structure and heat dissipation holes, a fixing frame is arranged on the side wall of the placing frame, the side wall of the fixing frame is welded with the bottom end of the placing frame through the supporting structure, butt joint grooves are symmetrically arranged at the top end of the placing frame, and the butt joint grooves are connected with the heat dissipation holes. A mutual inductor main body is movably mounted on the placement frame through a butt joint groove, wiring ends are symmetrically arranged at the top end of the mutual inductor main body, an even insulating layer is arranged at the bottom end of the mutual inductor main body, butt joint blocks are symmetrically arranged at the bottom end of the insulating layer, displacement grooves are symmetrically formed in the outer wall of the placement frame, and the displacement grooves are arranged in the placement frame. And telescopic rods are installed on the inner walls of the displacement grooves correspondingly, clamping rods are connected to one ends of the telescopic rods, sliding blocks are arranged at the bottom ends of the clamping rods, springs are installed on the outer walls of the telescopic rods correspondingly, and the problems that in the prior art, disassembly and assembly are inconvenient, and effective protection and heat dissipation cannot be provided for the mutual inductor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, and in particular to a current transformer that is easy to install. Background Art

[0002] Current transformers (CTs) are essential power measurement devices widely used in power systems. They measure AC current and convert it into smaller, manageable currents for monitoring and protection. With increasing power demand and the development of smart grids, the demand for easy-to-install CTs is growing.

[0003] Patent specification CN 217468124 discloses a current transformer that is easy to install. The device is constructed by providing a placement plate, a support frame, a slide bar, and a fixed block. The placement plate has support frames attached to both sides of its bottom, and first chutes on both sides of its top. Slide bars are slidably connected to each of the first chutes, and fixed blocks are attached to the inner upper sides of each of the two slide bars. A worker places the current transformer between the two fixed blocks, then pushes the blocks backward until they are flush with the wall. The current transformer is ready for use. The worker then moves the blocks forward to disengage the slide bar from the first chutes, and then removes the current transformer. The two fixed blocks facilitate both securing and removing the current transformer.

[0004] However, in the implementation of related technologies, it was found that the above-mentioned current transformer that is easy to install has the following problems: the device cannot protect the transformer body, and the transformer is easily discharged when exposed to the outside. Therefore, we propose a current transformer that is easy to install. Utility Model Content

[0005] The utility model provides a current transformer that is easy to install, which solves the problems in the related art of inconvenient assembly and disassembly and inability to provide effective protection and heat dissipation for the transformer.

[0006] The technical solution of the utility model is as follows:

[0007] A current transformer that is easy to install, comprising a placement rack, a support structure, and a heat dissipation hole, wherein the side wall of the placement rack is provided with a fixing rack, the side wall of the fixing rack is welded to the bottom end of the placement rack through the support structure, the top of the placement rack is symmetrically provided with a docking groove, the placement rack is movably mounted with a transformer body through the docking groove, the top of the transformer body is symmetrically provided with a wiring terminal, the bottom end of the transformer body is provided with an even insulation layer, the bottom end of the insulation layer is symmetrically provided with a docking block, and the outer wall of the placement rack is symmetrically provided with a displacement groove. The inner walls of the displacement slots are each installed with a telescopic rod, one end of the telescopic rod is connected to a clamping rod, the bottom end of the clamping rod is provided with a slider, the outer walls of the telescopic rods are each installed with a spring, a movable slot is provided in the middle position of the top end of the placement rack, a screw rod is movably installed on the inner wall of the movable slot, one end of the screw rod passes through the movable slot and extends to the outer wall of the placement rack, the placement rack is movably installed with a transformer protection shell through the screw rod, a threaded sleeve is provided at the bottom end of the transformer protection shell, and limit blocks are symmetrically provided on both sides of the transformer protection shell.

[0008] Preferably, the outer wall at the top end of the placement rack is symmetrically provided with limiting grooves, and the limiting grooves and the limiting blocks match each other.

[0009] Preferably, a through slot is provided on the top of the transformer protection shell, and the through slot is located directly above the transformer body.

[0010] Preferably, the side walls of the transformer protective shell are provided with heat dissipation holes at equal intervals, and the heat dissipation holes are evenly distributed on the sides of the transformer body.

[0011] Preferably, the outer wall of the screw rod is provided with an external thread, and the inner wall of the threaded sleeve is provided with an internal thread matching the external thread.

[0012] Preferably, the cross section of the slider is trapezoidal, and the displacement groove and the slider match each other.

[0013] Preferably, the docking groove is a rectangular hollow groove structure, and the docking block and the docking groove match each other.

[0014] Preferably, the clamping rod is a C-shaped structure, and the clamping rod is located on both sides of the transformer body.

[0015] The working principle and beneficial effects of the utility model are as follows:

[0016] 1. In the utility model, a placement frame, a fixing frame and a displacement groove are provided, and the fixing frame is fixed to the wall by bolts. The placement frame and the fixing frame form a stable structure by utilizing the triangular structure of the supporting structure. The bottom of the clamping rod is stretched toward both sides, so that the slider translates inside the displacement groove to compress the telescopic rod and the spring to expand the distance between the clamping rods. The docking block provided at the bottom end of the insulating layer is aligned with the docking groove provided at the top end of the placement frame and inserted. The clamping rod is loosened, and the elastic force generated by the deformation of the spring is utilized to reset the clamping rod to press against both sides of the transformer body to clamp and fix it. This structure facilitates the disassembly and installation of the transformer body for its maintenance.

[0017] 2. In the utility model, by providing a transformer protective shell, a limit groove and a limit block, the screw rod is rotated, and the transformer protective shell is driven to rotate by the screw rod. The limiting effect of the limit groove and the limit block on the transformer protective shell causes the heat dissipation hole to translate along the movable groove so that it covers the outer wall of the transformer body to provide protection for it. The through groove provided on the top of the transformer protective shell facilitates wiring of the terminal provided on the top of the transformer body. During use, the heat dissipation holes provided at equal intervals on the side wall of the transformer protective shell can timely dissipate heat for the transformer body. At the same time, the insulating layer provided on the outer wall of the transformer body can effectively avoid the occurrence of discharge. This structure can provide effective protection for the transformer body and can timely dissipate heat and insulate to avoid discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0019] Figure 1 This is a schematic diagram of the structure of the placement rack proposed in the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-section structure of the transformer protection shell proposed in the utility model;

[0021] Figure 3 This is a schematic diagram of the main structure of the mutual inductor proposed in the utility model;

[0022] Figure 4 This is a schematic diagram of the threaded sleeve structure proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the heat dissipation hole structure proposed by the utility model.

[0024] In the figure: 1. Placement rack; 2. Fixing rack; 3. Support structure; 4. Transformer protective shell; 5. Heat dissipation hole; 6. Limiting groove; 7. Limiting block; 8. Through groove; 9. Transformer body; 10. Terminal; 11. Displacement groove; 12. Telescopic rod; 13. Spring; 14. Clamping rod; 15. Insulation layer; 16. Movable groove; 17. Screw; 18. Threaded sleeve; 19. Slider; 20. Docking block; 21. Docking groove. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Figures 1 to 5 As shown, this embodiment proposes a current transformer that is easy to install, including a placement frame 1, a support structure 3 and a heat dissipation hole 5. The side wall of the placement frame 1 is provided with a fixing frame 2, and the side wall of the fixing frame 2 is welded to the bottom end of the placement frame 1 through the support structure 3. The top of the placement frame 1 is symmetrically provided with a docking groove 21. The placement frame 1 is movably mounted with a transformer body 9 through the docking groove 21. The top of the transformer body 9 is symmetrically provided with a terminal 10. The bottom end of the transformer body 9 is provided with an even insulation layer 15. The bottom end of the insulation layer 15 is symmetrically provided with a docking block 20. The outer wall of the placement frame 1 is symmetrically provided with a displacement groove. 11. The inner walls of the displacement slots 11 are each installed with a telescopic rod 12, one end of the telescopic rod 12 is connected to a clamping rod 14, the bottom end of the clamping rod 14 is provided with a slider 19, the outer walls of the telescopic rod 12 are each installed with a spring 13, a movable slot 16 is provided in the middle position of the top of the placement rack 1, a screw rod 17 is movably installed on the inner wall of the movable slot 16, one end of the screw rod 17 passes through the movable slot 16 and extends to the outer wall of the placement rack 1, the placement rack 1 is movably installed with a transformer protective shell 4 through the screw rod 17, the bottom end of the transformer protective shell 4 is provided with a threaded sleeve 18, and limit blocks 7 are symmetrically provided on both sides of the transformer protective shell 4.

[0027] In this embodiment, the outer wall of the top end of the placement rack 1 is symmetrically provided with limiting grooves 6 , and the limiting grooves 6 and the limiting blocks 7 match each other.

[0028] In this embodiment, the cross section of the slider 19 is trapezoidal, and the displacement groove 11 and the slider 19 match each other.

[0029] In this embodiment, the docking groove 21 is a rectangular hollow groove structure, and the docking block 20 and the docking groove 21 match each other.

[0030] In this embodiment, the clamping rod 14 is in a C-shaped structure, and the clamping rod 14 is located on both sides of the transformer body 9 .

[0031] Specific examples Figure 1 、 Figure 2 and Figure 4 As shown, when using this structure, the fixing frame 2 is fixed to the wall by bolts, and the triangular structure of the supporting structure 3 is used to make the placement frame 1 and the fixing frame 2 form a stable supporting structure. The bottom of the clamping rod 14 is stretched to both sides, so that the slider 19 is translated inside the displacement groove 11 to compress the telescopic rod 12 and the spring 13 to expand the distance between the clamping rods 14, and the docking block 20 set at the bottom end of the insulating layer 15 is aligned with the docking groove 21 set at the top of the placement frame 1 and inserted, and the clamping rod 14 is loosened. The elastic force generated by the deformation of the spring 13 is used to reset the clamping rod 14 to the two sides of the transformer body 9 to clamp and fix it. This structure facilitates the disassembly and installation of the transformer body 9 for its maintenance.

[0032] Embodiment 2: A through slot 8 is provided on the top of the transformer protection shell 4 , and the through slot 8 is located right above the transformer body 9 .

[0033] In this embodiment, heat dissipation holes 5 are formed at equal intervals on the side walls of the transformer protection shell 4 , and the heat dissipation holes 5 are evenly distributed on the side surfaces of the transformer body 9 .

[0034] In this embodiment, the outer wall of the screw rod 17 is provided with an external thread, and the inner wall of the threaded sleeve 18 is provided with an internal thread matching the external thread.

[0035] Specific examples Figure 1 、 Figure 3 and Figure 5 As shown, when using this structure, rotate the screw rod 17, and use the screw rod 17 to drive the transformer protective shell 4 to rotate. The limiting effect of the limiting groove 6 and the limiting block 7 on the transformer protective shell 4 causes the heat dissipation hole 5 to translate along the movable groove 16 so that it covers the outer wall of the transformer main body 9 to provide protection for it. The through groove 8 provided above the transformer protective shell 4 facilitates the wiring of the terminal 10 provided on the top of the transformer main body 9. During use, the heat dissipation holes 5 provided at equal intervals on the side wall of the transformer protective shell 4 can timely dissipate heat for the transformer main body 9. At the same time, the insulating outer wall provided on the outer wall of the transformer main body 9 can effectively avoid the occurrence of discharge. This structure can provide effective protection for the transformer main body 9, and can timely dissipate heat and insulate to avoid discharge.

[0036] Working principle: When in use, fix the fixing frame 2 to the wall by bolts, use the triangular structure of the supporting structure 3 to make the placement frame 1 and the fixing frame 2 form a stable structure, stretch the bottom of the clamping rod 14 to both sides, so that the slider 19 moves horizontally inside the displacement groove 11 to compress the telescopic rod 12 and the spring 13 to expand the distance between the clamping rod 14, align the docking block 20 set at the bottom end of the insulating layer 15 with the docking groove 21 set at the top end of the placement frame 1 and insert it, loosen the clamping rod 14, use the elastic force generated by the deformation of the spring 13 to reset the clamping rod 14 to the two sides of the transformer body 9 to clamp it, rotate the screw rod 17, and use the screw rod 17 to drive the transformer The protective shell 4 rotates, and the limiting effect of the limiting groove 6 and the limiting block 7 on the transformer protective shell 4 causes the heat dissipation hole 5 to translate along the movable groove 16 so that it covers the outer wall of the transformer main body 9 to provide protection for it. The through groove 8 arranged above the transformer protective shell 4 facilitates wiring of the terminal 10 arranged on the top of the transformer main body 9. During use, the heat dissipation holes 5 arranged at equal intervals on the side wall of the transformer protective shell 4 can timely dissipate heat for the transformer main body 9. At the same time, the insulating outer wall arranged on the outer wall of the transformer main body 9 can effectively avoid the occurrence of discharge. The transformer is easy to install and can dissipate heat in time to avoid discharge.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A current transformer that is easy to install, comprising a mounting frame (1), a supporting structure (3) and a heat dissipation hole (5), characterized in that: The side wall of the placement rack (1) is provided with a fixing rack (2), the side wall of the fixing rack (2) is welded to the bottom end of the placement rack (1) through a supporting structure (3), the top of the placement rack (1) is symmetrically provided with a docking groove (21), the placement rack (1) is movably mounted with a transformer body (9) through the docking groove (21), the top of the transformer body (9) is symmetrically provided with a terminal (10), the bottom end of the transformer body (9) is provided with an even insulation layer (15), the bottom end of the insulation layer (15) is symmetrically provided with a docking block (20), the outer wall of the placement rack (1) is symmetrically provided with a displacement groove (11), the inner wall of each of the displacement grooves (11) is provided with a telescopic rod (12), One end of the telescopic rod (12) is connected to a clamping rod (14), and a slider (19) is provided at the bottom end of the clamping rod (14). The outer wall of the telescopic rod (12) is installed with a spring (13). A movable groove (16) is provided at the middle position of the top of the placement frame (1), and a screw rod (17) is movably installed on the inner wall of the movable groove (16). One end of the screw rod (17) passes through the movable groove (16) and extends to the outer wall of the placement frame (1). The placement frame (1) is movably installed with a transformer protection shell (4) through the screw rod (17). The bottom end of the transformer protection shell (4) is provided with a threaded sleeve (18), and limit blocks (7) are symmetrically provided on both sides of the transformer protection shell (4).

2. A current transformer that is easy to install according to claim 1, characterized in that: The outer wall of the top end of the placement rack (1) is symmetrically provided with a limiting groove (6), and the limiting groove (6) and the limiting block (7) match each other.

3. A current transformer that is easy to install according to claim 2, characterized in that: A through slot (8) is provided at the top of the transformer protection shell (4), and the through slot (8) is located directly above the transformer body (9).

4. A current transformer that is easy to install according to claim 2, characterized in that: The side wall of the transformer protection shell (4) is provided with heat dissipation holes (5) at equal intervals, and the heat dissipation holes (5) are evenly distributed on the side of the transformer body (9).

5. The current transformer that is easy to install according to claim 3, characterized in that: The outer wall of the screw rod (17) is provided with an external thread, and the inner wall of the threaded sleeve (18) is provided with an internal thread matching the external thread.

6. The current transformer that is easy to install according to claim 5, characterized in that: The cross section of the slider (19) is trapezoidal, and the displacement groove (11) and the slider (19) match each other.

7. A current transformer that is easy to install according to claim 6, characterized in that: The docking groove (21) is a rectangular hollow groove structure, and the docking block (20) and the docking groove (21) match each other.

8. The current transformer that is easy to install according to claim 5, characterized in that: The clamping rod (14) has a C-shaped structure, and the clamping rod (14) is located on both sides of the transformer body (9).

Images