Current transformer coil with supporting protection structure

Abstract

The current transformer coil with the supporting and protecting structure comprises an iron core, a wire winding, a first protecting shell and a second protecting shell, the wire winding is wound on the outer wall of the iron core, the first protecting shell is arranged on one side of the iron core, and the second protecting shell is arranged on the other side of the iron core. A central positioning column is fixed to the center of the inner wall of the first protective shell, first inner supporting pieces are fixed to the outer wall of the central positioning column at equal intervals, first outer supporting pieces are fixed to the inner wall of the first protective shell at equal intervals, and the second protective shell is arranged on the other side of the iron core; second outer supporting pieces are fixed to the inner wall of the second protection shell at equal intervals, and first rubber protruding blocks and second rubber protruding blocks are adhered to the inner walls of the first protection shell and the second protection shell at the position of the iron core at equal intervals respectively. The pressure-resistant protective device not only has a pressure-resistant protective function, but also is not affected by moisture, high temperature, chemical corrosion and the like, and long-term stable operation of the pressure-resistant protective device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformer coils, in particular to a current transformer coil with a support protection structure. Background Technique

[0002] A current transformer coil is a device used to measure high current, also known as a current transformer. Its core component is a winding, usually made of copper or aluminum wire. The winding is installed on a closed iron core so that it can effectively transfer the magnetic field to the external circuit.

[0003] Chinese Patent No. CN210200503U discloses a current transformer coil, including an upper iron core, a lower iron core, an output wiring, a fixing nail, a coil wire, a card slot, a card plate and a connector. The upper iron core and the lower iron core are arranged in alignment. Coil wires are wound around the outer sides of the upper iron core and the lower iron core. Card plates are symmetrically fixed at the ends of the upper iron core. Card slots are symmetrically opened at the ends of the lower iron core, and the card plates are inserted into the card slots. Fixing nails are meshed and installed on the outer wall of the lower iron core, and the fixing nails are passed through the card plates. Output wirings are installed on the same side of the upper iron core and the lower iron core, and the coil wires are connected to the output wirings. A connector is cooperatively installed at one end of the upper iron core and the lower iron core away from the output wiring.

[0004] Although the above current transformer coil has the independent settings of the upper iron core and the lower iron core, and the convenient connection of the coil wires, which enables the production of the device to be mechanically processed, with high processing efficiency and simple processing equipment, it lacks a support protection structure. Under excessive external pressure, the internal iron core is easily squeezed and damaged, affecting the performance of the main body of the current transformer coil. Moreover, when the current transformer coil works under harsh environmental conditions, it is easily affected by moisture, high temperature, chemical corrosion, etc., and the long-term stable operation cannot be guaranteed. Therefore, we propose a current transformer coil with a support protection structure. Content of the Utility Model

[0005] The purpose of the utility model is to provide a current transformer coil with a support protection structure to solve the problems raised in the above background technique.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current transformer coil with a supporting protection structure, comprising an iron core, a wire winding, a first protective shell and a second protective shell, the wire winding is wound on the outer wall of the iron core, the first protective shell is arranged on one side of the iron core, and a center positioning column is fixed at the center position of the inner wall of the first protective shell, the outer wall of the center positioning column is fixed with first inner supports at equal intervals, the inner wall of the first protective shell is fixed with first outer supports at equal intervals, the second protective shell is arranged on the other side of the iron core, and second outer supports at equal intervals are fixed on the inner wall of the second protective shell, and first rubber bumps and second rubber bumps at equal intervals are respectively adhered to the inner walls of the first protective shell and the second protective shell at the position of the iron core, and the first rubber bumps and the second rubber bumps are tightly fitted to the outer wall of the iron core.

[0007] Preferably, one end of the central positioning column passes through the iron core and is tightly engaged with the annular groove on the inner wall of the second protective shell.

[0008] Preferably, a first insulating rubber pad, a second insulating rubber pad and a third insulating rubber pad are respectively adhered to one end of the first inner support member, the first outer support member and the second outer support member, the first insulating rubber pad is tightly fitted to the inner wall of the iron core, and the second insulating rubber pad and the third insulating rubber pad are tightly fitted to the outer wall of the iron core, thereby playing a role of soft support and protection.

[0009] Preferably, the first inner support member, the first outer support member, and the second outer support member are staggered with the wire windings, so that the support members do not interfere with the wire windings.

[0010] Preferably, first mounting plates with equal spacing are fixed on the outer side walls of the first protective shell, and a rectangular locking plate is installed on the surface of the first mounting plate via a damping shaft.

[0011] Preferably, second mounting plates with equal intervals are fixed on the outer side walls of the second protective shell, and the interior of the second mounting plates is provided with rectangular through grooves. The second mounting plates and the rectangular through grooves correspond to the first mounting plates and the rectangular locking plates respectively, so as to facilitate quick assembly and fixation of the first outer support members and the second outer support members.

[0012] Preferably, a sealing ring groove is provided on the inner side wall of the first protective shell on one side of the first outer support member.

[0013] Preferably, a sealing ring is adhered to the inner side wall of the second protective shell on one side of the second outer support member, and the sealing ring is tightly engaged with the sealing ring groove to facilitate sealing of the first outer support member and the second outer support member.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Put the iron core outside the central positioning column inside the first protective housing. The first inner support and the first outer support respectively support the inner and outer side walls of the iron core. Then combine the second protective housing with the first protective housing, align the first mounting piece and the second mounting piece, and one end of the central positioning column is snapped into the annular card slot. The second outer support supports the outer side wall of the iron core. Further, the first rubber bumps and the second rubber bumps on the inner walls of the first protective housing and the second protective housing respectively abut against the outer walls on both sides of the iron core, providing further soft support and protection for the iron core. The ends of the first inner support, the first outer support, and the second outer support are respectively adhered with the first insulating rubber pad, the second insulating rubber pad, and the third insulating rubber pad, playing a role of soft support and protection. This design can provide all-round protection for the current transformer coil to prevent it from being damaged by pressure. Moreover, after the first protective housing and the second protective housing are combined, the sealing ring is snapped into the sealing ring groove, making the first protective housing and the second protective housing form a fully sealed structure, and the current transformer coil is not affected by moisture, high temperature, chemical corrosion, etc., ensuring its long-term stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front sectional structural schematic diagram of the present utility model;

[0017] Figure 2 is a side sectional structural schematic diagram of the present utility model;

[0018] Figure 3 is of the present utility model Figure 2 enlarged structural schematic diagram at A;

[0019] Figure 4 is a structural schematic diagram of the first protective housing of the present utility model;

[0020] Figure 5 is a structural schematic diagram of the second protective housing of the present utility model.

[0021] In the figure: 1, iron core; 2, wire winding; 3, first protective housing; 4, central positioning column; 5, first inner support; 501, first insulating rubber pad; 6, first outer support; 601, second insulating rubber pad; 7, first rubber bump; 8, second protective housing; 9, second rubber bump; 10, second outer support; 1001, third insulating rubber pad; 11, sealing ring groove; 12, first mounting piece; 1201, damping rotating shaft; 1202, rectangular locking piece; 13, second mounting piece; 1301, rectangular through groove; 14, sealing ring; 15, annular card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 , an embodiment provided by the present utility model: a current transformer coil with a support protection structure, including an iron core 1, a wire winding 2, a first protection shell 3 and a second protection shell 8. The wire winding 2 is wound around the outer wall of the iron core 1;

[0024] The first protection shell 3 is arranged on one side of the iron core 1, and a central positioning column 4 is fixed at the central position of the inner wall of the first protection shell 3. Equal-spacing first inner support members 5 are fixed on the outer wall of the central positioning column 4, and equal-spacing first outer support members 6 are fixed on the inner wall of the first protection shell 3;

[0025] The second protection shell 8 is arranged on the other side of the iron core 1, and equal-spacing second outer support members 10 are fixed on the inner wall of the second protection shell 8;

[0026] Equally-spaced first rubber bumps 7 and second rubber bumps 9 are respectively adhered to the inner walls of the first protection shell 3 and the second protection shell 8 at the position of the iron core 1. Both the first rubber bumps 7 and the second rubber bumps 9 are in close contact with the outer wall of the iron core 1;

[0027] Specifically, the iron core 1 is sleeved outside the central positioning column 4 inside the first protection shell 3. Among them, the first inner support member 5 and the first outer support member 6 respectively support the inner and outer side walls of the iron core 1. Then, the second protection shell 8 is combined with the first protection shell 3, and the first mounting piece 12 and the second mounting piece 13 are aligned. One end of the central positioning column 4 is snapped into the annular slot 15, and the second outer support member 10 supports the outer side wall of the iron core 1. Further, the first rubber bumps 7 and the second rubber bumps 9 on the inner walls of the first protection shell 3 and the second protection shell 8 respectively abut against the outer walls on both sides of the iron core 1, playing a further soft support and protection role for the iron core 1. The end parts of the first inner support member 5, the first outer support member 6, and the second outer support member 10 are respectively adhered with a first insulating rubber pad 501, a second insulating rubber pad 601, and a third insulating rubber pad 1001, playing a role of soft support and protection. This design can provide all-round protection for the current transformer coil and prevent it from being damaged by pressure;

[0028] One end of the central positioning column 4 penetrates through the iron core 1 and is tightly snapped into the annular slot 15 on the inner wall of the second protection shell 8;

[0029] The first inner support member 5, the first outer support member 6, and the second outer support member 10 are respectively adhered with a first insulating rubber pad 501, a second insulating rubber pad 601, and a third insulating rubber pad 1001. The first insulating rubber pad 501 is tightly fitted with the inner wall of the iron core 1, and the second insulating rubber pad 601 and the third insulating rubber pad 1001 are tightly fitted with the outer wall of the iron core 1.

[0030] The first inner support member 5, the first outer support member 6, and the second outer support member 10 are all staggered with the wire winding 2;

[0031] The outer side walls of the first protective housing 3 are all fixed with first mounting plates 12 at equal intervals, and a rectangular locking plate 1202 is mounted on the surface of the first mounting plate 12 via a damping shaft 1201;

[0032] The outer wall of the second protective shell 8 is fixed with second mounting pieces 13 at equal intervals, and the second mounting pieces 13 are provided with rectangular through slots 1301 inside. The second mounting pieces 13 and the rectangular through slots 1301 correspond to the first mounting pieces 12 and the rectangular locking pieces 1202 respectively.

[0033] Specifically, the rectangular locking piece 1202 on the surface of the first mounting piece 12 passes through the rectangular through slot 1301 inside the second mounting piece 13, and then the rectangular locking piece 1202 is rotated ninety degrees around the damping shaft 1201 so that the rectangular locking piece 1202 is misaligned with the rectangular through slot 1301, so that the first mounting piece 12 and the second mounting piece 13 can be locked, and then the first protective shell 3 and the second protective shell 8 can be quickly assembled and fixed, and subsequent disassembly is also convenient;

[0034] A sealing ring groove 11 is provided on the inner side wall of the first protective housing 3 on one side of the first outer support member 6;

[0035] A sealing ring 14 is adhered to the inner wall of the second protective housing 8 on one side of the second outer support member 10, and the sealing ring 14 is tightly engaged with the sealing ring groove 11;

[0036] Specifically, after the first protective shell 3 and the second protective shell 8 are combined, the sealing ring 14 is inserted into the sealing ring groove 11, so that the first protective shell 3 and the second protective shell 8 form a fully sealed structure, and the current transformer coil is not affected by moisture, high temperature, chemical corrosion, etc., ensuring its long-term stable operation.

[0037] When the embodiment of the present application is in use: First, the current transformer coil mainly consists of an iron core 1, a wire winding 2, a first protective housing 3, and a second protective housing 8. The iron core 1 and the wire winding 2 are the main parts, and the first protective housing 3 and the second protective housing 8 are the support and protection structures. The iron core 1 is sleeved outside the central positioning column 4 inside the first protective housing 3. Among them, the first inner support member 5 and the first outer support member 6 respectively support the inner and outer side walls of the iron core 1. Then, the second protective housing 8 is combined with the first protective housing 3, and the first mounting piece 12 and the second mounting piece 13 are aligned. One end of the central positioning column 4 is snapped into the annular card slot 15, and the second outer support member 10 supports the outer side wall of the iron core 1. Further, the first rubber bumps 7 and the second rubber bumps 9 on the inner walls of the first protective housing 3 and the second protective housing 8 respectively abut against the outer walls on both sides of the iron core 1, playing a further soft support and protection role for the iron core 1. The end parts of the first inner support member 5, the first outer support member 6, and the second outer support member 10 are respectively adhered with a first insulating rubber pad 501, a second insulating rubber pad 601, and a third insulating rubber pad 1001, playing a soft support and protection role. This design can provide all-round protection for the current transformer coil to prevent it from being damaged by pressure. Moreover, after the first protective housing 3 and the second protective housing 8 are combined, the sealing ring 14 is snapped into the sealing ring groove 11, making the first protective housing 3 and the second protective housing 8 form a fully sealed structure, and the current transformer coil is not affected by moisture, high temperature, chemical corrosion, etc., ensuring its long-term stable operation. And, the rectangular locking piece 1202 on the surface of the first mounting piece 12 passes through the rectangular through slot 1301 inside the second mounting piece 13, and then the rectangular locking piece 1202 is rotated 90 degrees around the damping rotating shaft 1201, making the rectangular locking piece 1202 misaligned with the rectangular through slot 1301, so that the first mounting piece 12 and the second mounting piece 13 can be locked, and then the first protective housing 3 and the second protective housing 8 can be quickly assembled and fixed, and subsequent disassembly is also convenient.

Claims

1. A current transformer coil with a support protection structure, characterized in that, The invention comprises an iron core (1), a wire winding (2), a first protective shell (3) and a second protective shell (8), wherein the wire winding (2) is wound on the outer wall of the iron core (1), the first protective shell (3) is arranged on one side of the iron core (1), and a central positioning column (4) is fixed at the central position of the inner wall of the first protective shell (3), and first inner supporting members (5) with equal spacing are fixed on the outer wall of the central positioning column (4), and first outer supporting members (6) with equal spacing are fixed on the inner wall of the first protective shell (3), the second protective shell (8) is arranged on the other side of the iron core (1), and second outer supporting members (10) with equal spacing are fixed on the inner wall of the second protective shell (8), and first rubber bumps (7) and second rubber bumps (9) with equal spacing are respectively adhered to the inner walls of the first protective shell (3) and the second protective shell (8) at the position of the iron core (1), and the first rubber bumps (7) and the second rubber bumps (9) are tightly fitted to the outer wall of the iron core (1).

2. The current transformer coil with a support protection structure according to claim 1, characterized in that: One end of the central positioning column (4) passes through the iron core (1) and is tightly engaged with an annular groove (15) on the inner wall of the second protective shell (8).

3. A current transformer coil with a support protection structure according to claim 1, characterized in that: A first insulating rubber pad (501), a second insulating rubber pad (601), and a third insulating rubber pad (1001) are adhered to one end of the first inner support member (5), the first outer support member (6), and the second outer support member (10), respectively; the first insulating rubber pad (501) is tightly fitted to the inner wall of the iron core (1), and the second insulating rubber pad (601) and the third insulating rubber pad (1001) are tightly fitted to the outer wall of the iron core (1).

4. The current transformer coil with a support protection structure according to claim 1, characterized in that: The first inner support member (5), the first outer support member (6) and the second outer support member (10) are all arranged staggered with respect to the wire winding (2).

5. A current transformer coil with a support protection structure according to claim 1, characterized in that: First mounting plates (12) are fixed at equal intervals on the outer side walls of the first protective shell (3), and a rectangular locking plate (1202) is mounted on the surface of the first mounting plate (12) via a damping shaft (1201).

6. A current transformer coil with a support protection structure according to claim 1, characterized in that: Second mounting pieces (13) are fixed at equal intervals on the outer side walls of the second protective shell (8), and rectangular through grooves (1301) are provided inside the second mounting pieces (13). The second mounting pieces (13) and the rectangular through grooves (1301) correspond to the first mounting pieces (12) and the rectangular locking pieces (1202), respectively.

7. The current transformer coil with a support protection structure according to claim 1, characterized in that: A sealing ring groove (11) is provided on the inner side wall of the first protective shell (3) on one side of the first outer support member (6).

8. A current transformer coil with a support protection structure according to claim 1, characterized in that: A sealing ring (14) is adhered to the inner wall of the second protective shell (8) on one side of the second outer support member (10), and the sealing ring (14) is tightly engaged with the sealing ring groove (11).

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