Large-current transformer

Abstract

The utility model relates to the technical field of current transformers, in particular to a large current transformer. The winding comprises a framework, the framework is arranged to be a hollow rectangular body and forms a hollow part of the framework, the cross section of the framework is in a square shape, and two windings are arranged on the peripheral face of the framework in parallel side by side. Magnetic cores with consistent structures are arranged on the outer sides of the hollow parts of the framework and are symmetrically arranged along the central axis of the framework. The device solves the problem that a current transformer is complex in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of current transformers, and specifically relates to a large current transformer. Background Art

[0002] A current transformer is a device used to convert high current into low current, enabling low voltage equipment to withstand high current. It is one of the very important devices in the power system and can protect electrical equipment and systems from damage caused by high current.

[0003] The existing current transformers have complex structures and high production costs. Content of the Utility Model

[0004] In order to solve the problems in the related technologies, the utility model provides a large current transformer, which solves the problem of the complex structure of the current transformer.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] A large current transformer of the utility model includes a skeleton, the skeleton is set as a hollow rectangular body, forming a hollow part of the skeleton. The cross-section of the skeleton is in the shape of a "mouth", and two windings are arranged in parallel side by side on the outer peripheral surface of the skeleton; on the outer side of the hollow part of the skeleton, magnetic cores with the same structure are arranged, and the magnetic cores are arranged symmetrically about the center axis of the skeleton.

[0007] In the above solution, through the setting of the skeleton, winding and magnetic core, the copper wire is wound on the skeleton, and then the magnetic core is installed on both sides of the skeleton, and the assembly can be completed. The current transformer has a simple structure, can realize mass mechanized production, and has high production efficiency. Thus, it solves the problems of the complex structure and difficult assembly of the current transformer, and has a large current-carrying capacity and stable performance, can well monitor and protect power equipment, and can be widely used in industries such as power, etc., achieving the purpose of reducing production costs.

[0008] The magnetic core is arranged in an E shape, the protruding part in the middle of the E-shaped magnetic core extends into the hollow part of the skeleton, the protruding parts at both ends of the E-shaped magnetic core are located outside the skeleton, the inner wall surface of the protruding part abuts against the outer wall surface of the skeleton, and the inner wall surface of the vertical part of the E-shaped magnetic core abuts against the outer wall surface of the skeleton, which means the installation is in place.

[0009] After the magnetic core is installed in place, it is fixed by winding with tape.

[0010] In the above solution, through the setting of the magnetic core, the magnetic core is in an E shape, and the assembly of the E-shaped magnetic core is relatively simple, which can improve production efficiency in mass production, and has good heat dissipation performance and low production costs.

[0011] The windings are a first winding and a second winding, both of which are wound around the outer surface of the skeleton.

[0012] The first winding is made of round copper wire, and the second winding is made of flat copper wire.

[0013] In the above scheme, the first winding is made of circular copper wire, which is convenient and flexible to wind.

[0014] The skeleton is constructed using patch welding.

[0015] The above solution uses surface mount soldering, which makes the surface mount components smaller and occupies less space, helping to reduce the area and weight of the device, thereby reducing the overall cost. It can also improve soldering efficiency, ensure soldering quality, and meet the needs of large-scale production. In addition, the frame can also play a role in isolation and fixation.

[0016] The frame is provided with legs at the bottom, and the legs are located at the four corners of the bottom of the frame.

[0017] The above solution uses outriggers to improve the stability of the equipment, thereby ensuring its stable operation.

[0018] The above solution has the following advantages:

[0019] 1. The high-current transformer of this utility model includes a frame, which is a hollow rectangular body forming the hollow part of the frame. The cross-section of the frame is "U"-shaped. Two windings are arranged parallel to each other on the outer circumference of the frame. A magnetic core with a consistent structure is arranged on the outer side of the hollow part of the frame. The magnetic cores are symmetrically arranged along the central axis of the frame. By arranging the frame, windings, and magnetic cores, copper wire is wound around the frame, and then the magnetic cores are installed on both sides of the frame to complete the assembly. This current transformer has a simple structure, can achieve mass mechanized production, has high production efficiency, and can carry a large current with stable performance. It can effectively monitor and protect power equipment and can be widely used in the power industry, achieving the goal of reducing production costs.

[0020] 2. The magnetic core is arranged in an E-shape. After the magnetic core is installed, it is fixed by wrapping it with tape. The E-shaped magnetic core is relatively simple to assemble, which can improve production efficiency in large-scale production. It also has good heat dissipation performance and low production cost. The windings are a first winding and a second winding. Both the first winding and the second winding are wound on the outer surface of the frame. The first winding is made of round copper wire, which is convenient and flexible to wind. The second winding is made of flat copper wire. The frame adopts surface mount welding. Surface mount components are smaller and occupy less space, which helps to reduce the area and weight of the device, thereby reducing the overall cost. It can also improve welding efficiency, ensure welding quality, and meet the needs of large-scale production. The frame also plays a role in isolation and fixation. The frame is equipped with support legs at the bottom of the frame. The support legs are located at the four corners of the bottom of the frame to improve the stability of the equipment and ensure stable operation of the equipment. Attached Figure Description

[0021] Figure 1 This is a front view of a high-current transformer.

[0022] Figure 2 This is a schematic diagram of removing the winding in a high-current transformer.

[0023] Explanation of reference numerals in the attached diagram: 1. Frame; 2. Magnetic core; 3. First winding; 4. Second winding; 5. Support leg. Detailed Implementation

[0024] 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.

[0025] like Figures 1-2 As shown, this utility model discloses a high-current transformer comprising a frame 1, which is a hollow rectangular body forming the hollow portion of the frame 1. The cross-section of the frame 1 is U-shaped. Two windings are arranged parallel to each other on the outer circumference of the frame 1. Magnetic cores 2 with identical structures are arranged on the outer side of the hollow portion of the frame 1, symmetrically arranged along the central axis of the frame 1. By assembling the frame 1, windings, and magnetic cores 2, copper wire is wound around the frame 1, and then the magnetic cores 2 are installed on both sides of the frame 1. This current transformer has a simple structure, can achieve mass mechanized production, has high production efficiency, and exhibits stable performance with a large current carrying capacity. It can effectively monitor and protect power equipment and can be widely used in the power industry, achieving the goal of reducing production costs.

[0026] The magnetic core 2 is arranged in an E-shape. The protrusion in the middle of the E-shape of the magnetic core 2 extends into the hollow part of the frame 1. The protrusions at both ends of the E-shape of the magnetic core 2 are located on the outside of the frame 1. The inner wall of the protrusion abuts against the outer wall of the frame 1. The inner wall of the vertical part of the magnetic core 2 abuts against the outer wall of the frame 1, which means that it is installed in place. After the magnetic core 2 is installed in place, it is fixed by wrapping it with tape. The E-shape of the magnetic core 2 is relatively simple to assemble. It can improve production efficiency in large-scale production and has good heat dissipation performance and low production cost.

[0027] The windings are a first winding 3 and a second winding 4. Both the first winding 3 and the second winding 4 are wound on the outer surface of the skeleton 1. The first winding 3 is made of round copper wire, which is convenient and flexible to wind. The second winding 4 is made of flat copper wire.

[0028] The frame 1 uses surface mount soldering, which makes the surface mount components smaller and occupies less space, helping to reduce the area and weight of the device, thereby reducing the overall cost. It can also improve soldering efficiency, ensure soldering quality, and meet the needs of large-scale production. In addition, the frame 1 can also play a role in isolation and fixation.

[0029] The bottom of the frame 1 is provided with support legs 5, which are located at the four corners of the bottom of the frame 1 to improve the stability of the equipment and thus ensure the stable operation of the equipment.

[0030] First, wind the round copper wire onto the frame 1 to form the first winding 3. Then, wind the flat copper wire onto the frame 1 to form the second winding 4. Next, install the E-shaped magnetic core 2 on both sides of the frame 1, so that the protruding part in the middle of the E-shaped part of the frame 1 is located in the hollow part of the frame 1, and the protruding parts at both ends of the E-shaped part of the magnetic core 2 are located on both sides of the frame 1. Push the magnetic core 2 so that the inner wall surface of the magnetic core 2 abuts against the outer wall surface of the frame 1, which means that it is installed in place. Then, fix it with tape to complete the assembly.

[0031] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high current transformer characterized by, The application relates to a magnetic core, which comprises a skeleton (1) arranged as a hollow rectangular body, a hollow part of the skeleton (1) is formed, the cross section of the skeleton (1) is in the shape of a Chinese character "kou", two windings are arranged in parallel on the outer circumferential surface of the skeleton (1); a magnetic core (2) with consistent structure is arranged outside the hollow part of the skeleton (1), and the magnetic core (2) is arranged symmetrically along the central axis of the skeleton (1).

2. A high current transformer as claimed in claim 1, characterised in that, The magnetic core (2) is arranged in the shape of E, the convex part in the middle of the E-shaped magnetic core (2) extends into the hollow part of the skeleton (1), the extending parts at the two ends of the E-shaped magnetic core (2) are located outside the skeleton (1), the inner wall surface of the extending parts abuts against the outer wall surface of the skeleton (1), the inner wall surface of the vertical part of the E-shaped magnetic core (2) abuts against the outer wall surface of the skeleton (1), and the magnetic core (2) is installed in place.

3. A high current transformer as claimed in claim 2, characterised in that, After the magnetic core (2) is installed in place, the magnetic core (2) is fixed through winding of adhesive tape.

4. A high current transformer as claimed in claim 1, wherein, The windings are a first winding (3) and a second winding (4), the first winding (3) and the second winding (4) are wound on the outer surface of the skeleton (1).

5. A high current transformer as claimed in claim 4, characterised in that, The first winding (3) is round copper wire winding, and the second winding (4) is flat copper wire winding.

6. A high current transformer as claimed in claim 1, characterised in that, The skeleton (1) is welded by patching.

7. A high current transformer as claimed in claim 1, wherein, The skeleton (1) is provided with supporting legs (5) at the bottom, and the supporting legs (5) are located at the positions of the four corners of the bottom of the skeleton (1).

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