Split type mutual inductor for power distribution cabinet

Abstract

The utility model relates to the technical field of mutual inductors, and discloses a split type mutual inductor for a power distribution cabinet, which comprises a shell I and a mounting plate, the top of the shell I is provided with a shell II, the side surface of the shell I is fixedly connected with a butt joint shell, a fixing assembly is mounted in the butt joint shell, and the butt joint shell is fixedly connected with the mounting plate. A connecting block is fixedly connected to the side face of the first shell, and a quick release assembly is installed in the first shell. The fixing assembly comprises a rotary clamping block, the rotary clamping block is rotationally connected to the interior of the butt joint shell, a first spring and a second spring are arranged in the butt joint shell, and the top of the first spring is fixedly connected to the bottom of the rotary clamping block. Compared with the prior art, under the synergistic effect of the rotary clamping block, the first spring and the connecting block, the first shell and the second shell are rapidly disassembled, complex operation in the traditional disassembling process is avoided, the disassembling time is remarkably shortened, and therefore the maintenance and repair efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of instrument transformer technology, and in particular to a split-type instrument transformer for use in power distribution cabinets. Background Technology

[0002] A current transformer is an electrical device used to monitor the current or voltage in a distribution cabinet. Through the principle of electromagnetic induction, the current transformer converts high voltage or high current signals into low voltage or low current signals, so that measuring instruments, safety protection equipment or automation systems can monitor and control them. Common current transformers include current transformers and voltage transformers. They play an important role in the distribution cabinet in terms of isolation, measurement, protection and monitoring, ensuring the stable operation of the distribution cabinet.

[0003] Instrument transformers are mainly composed of an iron core, windings, and a housing. The iron core is used for magnetic conduction. Current transformers generate a secondary current proportional to the current passing through the main circuit. Voltage transformers convert high voltage into low voltage signals. Their working principle is based on electromagnetic induction. By changing the magnetic field, current or voltage is generated in the windings, thereby realizing signal conversion and monitoring, ensuring the safety and accurate measurement of the power system.

[0004] Existing instrument transformers can effectively play important roles such as isolation, measurement, protection and monitoring. However, most instrument transformers are currently integrated structures. When the internal structure of the instrument transformer is damaged, it is difficult to disassemble the instrument transformer, which is not conducive to maintenance by staff and affects the normal operation of the distribution cabinet. Therefore, a split-type instrument transformer for distribution cabinet is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a split-type instrument transformer for power distribution cabinets, aiming to improve the problem that the instrument transformers in the prior art are difficult to disassemble and repair, which affects the normal operation of the power distribution cabinet.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A split-type instrument transformer for a power distribution cabinet includes a housing 1 and a mounting plate. A housing 2 is disposed on the top of the housing 1. A docking shell is fixedly connected to the side of the housing 1. A fixing component is installed inside the docking shell. A connecting block is fixedly connected to the side of the housing 1. A quick-release component is installed inside the housing 1. The fixing component includes a rotating locking block, which is rotatably connected to the inside of the docking shell. A spring 1 and a spring 2 are disposed inside the docking shell. The top of spring 1 is fixedly connected to the bottom of the rotating locking block. A stop block is fixedly connected to the top of spring 2. A connecting block is fixedly connected to the side of the housing 2.

[0008] As a further description of the above technical solution:

[0009] The side of the connecting block is provided with a slot, which engages with the rotating block.

[0010] As a further description of the above technical solution:

[0011] A movable rod is slidably connected inside the docking shell, and the bottom of the movable rod is located at the top of the rotating block;

[0012] As a further description of the above technical solution:

[0013] The quick-release assembly includes a fixing plate, which is fixedly connected to the inside of the housing. A fixing post is fixedly connected to the side of the fixing plate, a clamping plate is slidably connected to the outside of the fixing post, and a locking block is fixedly connected to the side of the clamping plate.

[0014] As a further description of the above technical solution:

[0015] A spring three is sleeved on the outer periphery of the fixed column, and the spring three is disposed on the side of the clamping plate;

[0016] As a further description of the above technical solution:

[0017] The mounting plate has a second slot inside, and the locking block engages with the second slot.

[0018] As a further description of the above technical solution:

[0019] The mounting plate has an internal mounting groove, and the clamping plate is slidably connected to the inside of the mounting groove.

[0020] As a further description of the above technical solution:

[0021] The top of the docking shell is provided with a docking groove, and the connecting block is slidably connected inside the docking groove.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the housing 1 and housing 2 can be quickly disassembled by the cooperation of the rotating locking block, spring 1 and connecting block, avoiding the cumbersome operation in the traditional disassembly process. The cooperation of spring 2 and the stop block can ensure that the connecting block pops out quickly during disassembly, which greatly shortens the disassembly time and improves the maintenance and repair efficiency.

[0024] 2. In this utility model, under the combined action of the fixing plate, clamping plate, locking block and spring three, the locking block automatically locks into the locking slot two, fixing the position of the current transformer, realizing quick installation and disassembly of the current transformer, simplifying the installation and maintenance process, and improving the convenience and efficiency of equipment maintenance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a split-type instrument transformer for a power distribution cabinet proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of a rotating locking block for a split-type current transformer in a power distribution cabinet, as proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the docking shell of a split-type current transformer for a distribution cabinet proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the clamping plate for a split-type current transformer used in a distribution cabinet, as proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the structure of a mounting plate for a split-type current transformer used in a power distribution cabinet, as proposed in this utility model.

[0030] Legend:

[0031] 1. Housing 1; 2. Housing 2; 3. Mounting plate; 4. Connecting shell; 5. Fixing assembly; 6. Quick release assembly; 7. Rotating latch; 8. Spring 1; 9. Spring 2; 10. Abutment block; 11. Connecting block; 12. Slot 1; 13. Connecting slot; 14. Fixing plate; 15. Fixing post; 16. Clamping plate; 17. Latch; 18. Spring 3; 19. Slot 2; 20. Mounting slot; 21. Moving rod. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 - Figure 3This utility model provides an embodiment of a split-type current transformer for a power distribution cabinet, comprising a housing 1 and a mounting plate 3. A housing 2 is provided on the top of the housing 1. A docking shell 4 is fixedly connected to the side of the housing 1. A fixing component 5 is installed inside the docking shell 4. A connecting block 11 is fixedly connected to the side of the housing 1. A quick-release component 6 is installed inside the housing 1. The fixing component 5 includes a rotating locking block 7, which is rotatably connected inside the docking shell 4. Rotating the rotating locking block 7 locks the connecting block 11. A spring 8 and a spring 9 are provided inside the docking shell 4. The top of the spring 8 is fixedly connected to the bottom of the rotating locking block 7. The rotating locking block 7 is rotated by the pressure applied by the spring 8. A stop block 10 is fixedly connected to the top of the spring 9. The connecting block 11 is fixedly connected to the side of the housing 2. The pressure generated by the cooperation of the spring 9 and the stop block 10 stops the connecting block 11, fixing the position of the connecting block 11. A slot 12 is provided on the side of the connecting block 11. The slot 12 engages with the rotating block 7. By rotating the rotating block 7, it engages with the slot 12, fixing the position of the connecting block 11. A moving rod 21 is slidably connected inside the docking shell 4. The bottom of the moving rod 21 is located at the top of the rotating block 7. By pressing the moving rod 21, the rotating block 7 is squeezed and the connecting block 11 is released.

[0034] Reference Figure 1 , Figure 4 and Figure 5 The quick-release assembly 6 includes a fixing plate 14, which is fixedly connected to the inside of the housing 1. A fixing post 15 is fixedly connected to the side of the fixing plate 14. The fixing plate 14 is used to connect various structures. A clamping plate 16 is slidably connected to the outside of the fixing post 15. A locking block 17 is fixedly connected to the side of the clamping plate 16. By moving the clamping plate 16, the locking block 17 is controlled to move inward and outward. A spring 3 18 is sleeved on the outer periphery of the fixing post 15. The spring 3 18 is located on the side of the clamping plate 16. The pressure applied by the spring 3 18 causes the clamping plate 16 to move outward with the locking block 17. A locking groove 2 19 is opened inside the mounting plate 3. The locking block 17 engages with the locking groove 2 19. When the locking block 17 moves outward, it engages with the locking groove 2 19, fixing the position of the current transformer.

[0035] Reference Figure 3 and Figure 5 The mounting plate 3 has an internal mounting groove 20, and the clamping plate 16 is slidably connected inside the mounting groove 20. The mounting groove 20 provides space for the installation of the current transformer. The top of the docking shell 4 has a docking groove 13, and the connecting block 11 is slidably connected inside the docking groove 13. The docking groove 13 provides space for fixing the connecting block 11.

[0036] Working principle: When it is necessary to disassemble housing 1 and housing 2, press the moving rod 21 to press down the top of the rotating block 7, causing it to rotate and disengage from the slot 12. The pressure generated by the cooperation of spring 29 and abutment 10 will pop out the connecting block 11, thus completing the disassembly of housing 1 and housing 2. When docking is required, slide the connecting block 11 into the docking housing 4 and squeeze the rotating block 7. The rotating block 7 will be engaged in the slot 12 by the pressure of spring 18, and the pressure generated by the cooperation of spring 29 and abutment 10 will fix the connecting block 11 inside the docking housing 4. This allows for quick opening and disassembly of housing 1 and housing 2, improving the efficiency of maintenance work and ensuring the normal operation of the distribution cabinet.

[0037] When installing the current transformer onto the mounting plate 3, slide the clamp 16 into the mounting groove 20. The pressure applied by the spring 3 18 causes the clamp 16, along with the locking block 17, to move outward and lock into the slot 2 19, thus completing the installation of the current transformer. If disassembly is required, move the control clamp 16, along with the locking block 17, inward to disengage it from the slot 2 19, thus completing the disassembly of the current transformer.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-core transformer for an electrical distribution cabinet comprising a housing one (1) and a mounting plate (3), characterized in that: The top of the shell one (1) is provided with the shell two (2), the side of the shell one (1) is fixedly connected with the butt joint shell (4), the inside of the butt joint shell (4) is installed with the fixed assembly (5), the side of the shell one (1) is fixedly connected with the connecting block (11), the inside of the shell one (1) is installed with the quick release assembly (6). The fixed assembly (5) includes the rotary clamping block (7), the rotary clamping block (7) is rotatably connected in the inside of the butt joint shell (4), the inside of the butt joint shell (4) is provided with the spring one (8) and the spring two (9), the top of the spring one (8) is fixedly connected with the bottom of the rotary clamping block (7), the top of the spring two (9) is fixedly connected with the resisting block (10), the side of the shell two (2) is fixedly connected with the connecting block (11).

2. The split-core transformer for an electrical switchgear cabinet of claim 1, wherein: The side of the connecting block (11) is provided with the clamping groove one (12), and the clamping groove one (12) is clamped with the rotary clamping block (7).

3. The split-core transformer for an electrical switchgear cabinet of claim 1, wherein: The inside of the butt joint shell (4) is slidably connected with the moving rod (21), and the bottom of the moving rod (21) is arranged on the top of the rotary clamping block (7).

4. The split-core transformer for an electrical switchgear cabinet of claim 1, wherein: The quick release assembly (6) includes the fixed plate (14), the fixed plate (14) is fixedly connected in the inside of the shell one (1), the side of the fixed plate (14) is fixedly connected with the fixed column (15), the outer side of the fixed column (15) is slidably connected with the clamping plate (16), and the side of the clamping plate (16) is fixedly connected with the clamping block (17).

5. A split current transformer for an electrical switchgear cabinet according to claim 4, characterized in that: The outer periphery of the fixed column (15) is provided with the spring three (18), and the spring three (18) is arranged on the side of the clamping plate (16).

6. The split-core transformer for an electrical switchgear cabinet of claim 4, wherein: The inside of the mounting plate (3) is provided with the clamping groove two (19), and the clamping block (17) is clamped with the clamping groove two (19).

7. The split-core transformer for an electrical switchgear cabinet of claim 4, wherein: The inside of the mounting plate (3) is provided with the mounting groove (20), and the clamping plate (16) is slidably connected in the inside of the mounting groove (20).

8. The split-core transformer for an electrical switchgear cabinet of claim 1, wherein: The top of the butt joint shell (4) is provided with the butt joint groove (13), and the connecting block (11) is slidably connected in the inside of the butt joint groove (13).

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