Annular iron core current transformer

Abstract

The utility model discloses an annular iron core current transformer, which is characterized in that connecting columns are symmetrically arranged at the bottom of an iron core, mounting seats are mounted on the connecting columns in a matched manner, two sides of each mounting seat are connected with connecting plates, the side wall of each mounting seat is connected with a protection mechanism, the connecting plates are sleeved on the connecting columns, and the connecting plates limit the position of a conductive circuit to prevent displacement. And meanwhile, the connecting plate can well shield the conductive circuit from being exposed outside, the protective sleeve is rotationally installed on the long edge, the protective sleeve is arranged on the outer wall of the connecting column in a sleeving mode, the end of the connecting column is protected, the situations of rusting, electric leakage and the like caused by long-time contact with the outside are prevented, and the protective sleeve is made of a plastic material. When the conductive circuit needs to be disassembled, the protective sleeve is taken down by rotating, then the connecting plate is pushed to be close to the long edge, the connecting plate can be taken out by pulling outwards, and finally the conductive circuit is separated from the connecting column and taken out. According to the scheme, the conductive circuit can be quickly replaced and maintained, and meanwhile, a protection connecting part is provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron cores, and in particular relates to a ring-type iron core current transformer. Background Art

[0002] In the daily operation of the power system, accurate and efficient measurement and monitoring of current is a key link to ensure the stable operation of the system, optimize resource allocation and prevent electrical failures. Although traditional current transformers meet the basic needs of the power system to a certain extent, they still have some limitations in practical applications, especially in terms of current measurement accuracy, installation convenience and adaptability to complex environments.

[0003] At present, the existing ring-type iron core current transformer adopts the original conventional method of fastening the conductive line with nuts, which is not easy to disassemble and is not easy for subsequent staff to repair and replace the line. The connection parts are exposed to the outside, resulting in reduced safety. The exposed connection parts may be more susceptible to mechanical damage or external environmental influences such as corrosion and oxidation, thereby reducing the safety and reliability of the entire conductive system. At the same time, it will also lead to a decrease in electrical performance. Utility Model Content

[0004] The utility model aims to provide a ring-type iron core current transformer to solve the problems of connection parts exposure and disassembly maintenance and line replacement in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A ring-type iron core current transformer comprises an iron core, a secondary terminal is arranged on the side of the iron core, connecting columns are symmetrically arranged on the bottom of the iron core, a mounting seat is mounted on the connecting columns, connecting plates are connected to the two sides of the mounting seat; and a protective mechanism is connected to the side wall of the mounting seat.

[0007] Furthermore, the mounting seat comprises a short side and a long side, the short side and the long side form an "I"-shaped structure, and the length of the long side is greater than the short side. Countersunk holes are passed through the centers of the short side and the long side, and a through hole is opened on the long side, which is concentrically matched with the connecting column, and a protective sleeve is installed in the through hole.

[0008] In the above scheme, the connecting plate limits the position of the conductive line to prevent displacement, and at the same time the connecting plate can also effectively shield the conductive line to prevent it from being exposed to the outside. The inner wall of the through hole opened on the long side has a thread, and the outer wall of the protective sleeve is provided with a thread. The protective sleeve is rotated and installed on the long side. At the same time, the protective sleeve will be mounted on the outer wall of the connecting column to protect the end of the connecting column.

[0009] Furthermore, the protective mechanism includes a side wall column, a connecting rod and a protective cover. The side wall of the mounting seat is provided with a side wall column, the side wall column is hingedly connected to the connecting rod, and one end of the connecting rod is connected to the protective cover.

[0010] Furthermore, the bottom of the protective cover is made of magnetic material. The connecting rod uses the side wall column as the axis point to drive the protective cover to flip, and the magnetic material can be adsorbed on the outer surface of the iron core.

[0011] Furthermore, the protective sleeve is made of plastic and is sleeved on the outer wall of the connecting column to protect the end of the connecting column and prevent rust and leakage caused by long-term contact with the outside world.

[0012] The technical solution of the utility model has the following beneficial effects:

[0013] 1. The connecting plate is mounted on the connecting column. The connecting plate limits the position of the conductive line to prevent displacement. At the same time, the connecting plate can also well shield the conductive line to avoid exposure to the outside. It is installed on the long side by rotating the protective cover. At the same time, the protective cover will be mounted on the outer wall of the connecting column to protect the end of the connecting column to prevent rust and leakage due to long-term contact with the outside world. The protective cover is made of plastic.

[0014] 2. When the conductive circuit needs to be disassembled, just rotate and remove the protective cover, then push the connecting plate close to the long side, pull it outward to remove the connecting plate, and finally remove the conductive circuit from the connecting column. This solution can quickly replace and repair the conductive circuit, while providing protection for the connection parts, changing the original conventional method of fastening the conductive circuit with nuts, which is not easy to disassemble and the connection parts are exposed.

[0015] 3. The link rod uses the side wall column as the axis point to drive the protective cover to flip, so that the protective cover covers the secondary wiring terminals to protect the wiring of the secondary wiring terminals. The protective cover can effectively shield and protect the wiring of the secondary wiring terminals to prevent short circuits, open circuits or other electrical faults caused by external factors, thereby improving the safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the expanded structure of the utility model.

[0019] Figure 3 It is a schematic diagram of the bottom structure of the utility model.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0021] Figure numerals: 10, iron core; 11, secondary terminal; 12, mounting seat; 13, short side; 14, long side; 15, countersunk hole; 16, connecting column; 17, connecting plate; 18, protective sleeve; 19, side wall column; 20, connecting rod; 21, protective cover. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Embodiment 1:

[0024] refer to Figure 1 A ring-type iron core current transformer includes an iron core 10, a secondary terminal 11 is provided on the side of the iron core 10, a connecting column 16 is symmetrically provided at the bottom of the iron core 10, a mounting seat 12 is mounted on the connecting column 16, and connecting plates 17 are connected to both sides of the mounting seat 12. The connecting plate 17 is a Z-shaped structure, and a hole is opened on the surface for bolt connection to a wall or a mounting surface, and the connecting plate 17 supports the stable installation of the iron core 10.

[0025] refer to Figure 2 and Figure 3 The mounting seat 12 includes a short side 13 and a long side 14, and the short side 13 and the long side 14 form an "I"-shaped structure. The length of the long side 14 is greater than the short side 13. Countersunk holes 15 are passed through the centers of the short side 13 and the long side 14. A through hole is opened on the long side 14, and the through hole is concentrically matched with the connecting column 16. A protective sleeve 18 is installed in the through hole.

[0026] In the above scheme, the connecting column 16 is used to connect the conductive connection end. First, the short side 13 of the mounting seat 12 is attached to the bottom of the iron core 10, and the bolt is connected inside the countersunk hole 15. The bolt is rotated and tightened to enter the bottom of the iron core 10, thereby fixing the mounting seat 12, and connecting the conductive circuit to the connecting column 16. Then, the connecting plate 17 is inserted into the mounting seat 12 close to the long side 14, and the connecting plate 17 is sleeved on the connecting column 16. The connecting plate 17 limits the position of the conductive circuit to prevent displacement. At the same time, the connecting plate 17 can also well shield the conductive circuit to avoid exposure to the outside. Finally, the inner wall of the through hole opened on the long side 14 has a thread, and the outer wall of the protective sleeve 18 is provided with a thread. The protective sleeve 18 is rotated and installed on the long side 14. At the same time, the protective sleeve 18 will be sleeved on the outer wall of the connecting column 16 to protect the end of the connecting column 16 to prevent rust and leakage due to long-term contact with the outside world. The protective sleeve 18 is made of plastic. When the conductive circuit needs to be removed, it is only necessary to rotate and remove the protective cover 18, then push the connecting plate 17 close to the long side 14, and then pull outward to remove the connecting plate 17, and finally remove the conductive circuit from the connecting column 16. This solution can quickly replace and repair the conductive circuit, while providing protection for the connection part, changing the original conventional method of fastening the conductive circuit with a nut, which is not easy to disassemble and the connection part is exposed.

[0027] Embodiment 2:

[0028] refer to Figure 1-Figure 3 The side wall of the mounting seat 12 is connected with a protective mechanism, which includes a side wall column 19, a connecting rod 20 and a protective cover 21. The side wall of the mounting seat 12 is provided with a side wall column 19, and the connecting rod 20 is hinged on the side wall column 19, and one end of the connecting rod 20 is connected to the protective cover 21.

[0029] In the above scheme, after the circuit is connected to the secondary terminal 11, the protective cover 21 is flipped upward, and the link rod 20 uses the side wall column 19 as the axis point to drive the protective cover 21 to flip, so that the protective cover 21 covers the secondary terminal 11 to protect the connection point of the secondary terminal 11. It is worth noting that the bottom of the protective cover 21 is made of magnetic material and can be adsorbed on the outer surface of the iron core 10 or the nut connected between the loose link rod 20 and the side wall column 19 to achieve the purpose of stabilizing the protective cover 21. The protective cover 21 can effectively shield and protect the connection point of the secondary terminal 11, prevent short circuits, open circuits or other electrical faults caused by external factors (such as dust, water, accidental touch, etc.), thereby improving the safety and reliability of the equipment, and at the same time can greatly extend the service life of the secondary terminal 11, and reduce the failure rate and maintenance cost of the equipment.

[0030] The specific implementation process of this embodiment is as follows:

[0031] When in use, first fit the short side 13 of the mounting seat 12 to the bottom of the iron core 10, connect the bolts inside the countersunk holes 15, rotate and tighten the bolts into the bottom of the iron core 10, thereby fixing the mounting seat 12, and connecting the conductive circuit to the connecting column 16, and then insert the connecting plate 17 into the mounting seat 12 close to the long side 14, and at the same time, sleeve the connecting plate 17 on the connecting column 16, and the connecting plate 17 limits the position of the conductive circuit to prevent displacement, and at the same time, the connecting plate 17 can also well shield the conductive circuit from being exposed to the outside, finally, the inner wall of the through hole opened on the long side 14 has threads, and the outer wall of the protective sleeve 18 has threads, and the protective sleeve 18 is rotated and installed to the long side 14 through the protective sleeve 18, and at the same time, the protective sleeve 18 will be sleeved on the outer wall of the connecting column 16, so as to protect the end of the connecting column 16 and prevent rust and leakage due to long-term contact with the outside world. The protective sleeve 18 is made of plastic. When the conductive circuit needs to be removed, it is only necessary to rotate and remove the protective cover 18, then push the connecting plate 17 close to the long side 14, and then pull outward to remove the connecting plate 17, and finally remove the conductive circuit from the connecting column 16. This solution can quickly replace and repair the conductive circuit, while providing protection for the connection part, changing the original conventional method of fastening the conductive circuit with a nut, which is not easy to disassemble and the connection part is exposed.

[0032] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Various modifications or equivalent substitutions may be made to the present invention within the essence and protection scope of the present invention. Such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

[0033] In the description of the present utility model, it should be noted that the terms "inside", "front", "back", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the attached circles, or the directions or positional relationships in which the utility model product is usually placed when in use, and are only used to facilitate the description of the present utility model and simplify the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, these terms indicating directions or positional relationships cannot be understood as limiting the present utility model.

[0034] In the description of the present invention, it is further explained that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, these terms can indicate a fixed connection, a detachable connection, or an integral connection between elements; they can also indicate a mechanical connection, an electrical connection; they can also indicate a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of these terms in the present invention can be understood according to specific circumstances.

Claims

1. A ring-type iron core current transformer, comprising an iron core (10), a secondary terminal (11) being provided on the side of the iron core (10), characterized in that: The bottom of the iron core (10) is symmetrically provided with connecting columns (16), a mounting seat (12) is mounted on the connecting columns (16), and connecting plates (17) are connected to both sides of the mounting seat (12); The side wall of the mounting seat (12) is connected with a protection mechanism.

2. A ring-type iron core current transformer according to claim 1, characterized in that: The mounting seat (12) comprises a short side (13) and a long side (14).

3. A ring-type iron core current transformer according to claim 2, characterized in that: The short side (13) and the long side (14) form an "I"-shaped structure, and the length of the long side (14) is greater than that of the short side (13).

4. A ring-type iron core current transformer according to claim 3, characterized in that: A countersunk hole (15) is passed through the center of the short side (13) and the long side (14); a through hole is opened on the long side (14); the through hole is coaxially matched with the connecting column (16); and a protective sleeve (18) is installed in the through hole.

5. The ring-type iron core current transformer according to claim 1, characterized in that: The protective mechanism comprises a side wall column (19), a connecting rod (20) and a protective cover (21); the side wall of the mounting seat (12) is provided with a side wall column (19); the connecting rod (20) is hingedly connected to the side wall column (19); and one end of the connecting rod (20) is connected to the protective cover (21).

6. A ring-type iron core current transformer according to claim 5, characterized in that: The bottom of the protective cover (21) is made of magnetic material.

7. A ring-type iron core current transformer according to claim 4, characterized in that: The protective sleeve (18) is made of plastic.

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