High-power-density anti-interference energy-saving iron core for iron core transformer

Abstract

The utility model discloses an iron core for a high-power density anti-interference energy-saving iron core transformer, and relates to the technical field of transformer iron cores, the iron core for the high-power density anti-interference energy-saving iron core transformer comprises an iron core body, the iron core body comprises a first C-shaped iron core, a second C-shaped iron core, a first shielding shell and a second shielding shell, wherein the first C-shaped iron core and the second C-shaped iron core are both composed of multiple layers of iron-based amorphous ribbons; the first shielding shell is installed on the outer wall of the first C-shaped iron core, and the first C-shaped iron core is provided with a connecting iron-based amorphous plate; the material cost of the iron core is reduced through the iron-based amorphous strip, anti-interference shielding protection can be carried out on the iron core through the aluminum shielding shell, friction between the iron core and the coil is reduced, and the anti-interference performance of the iron core is improved. The air gap holes of the iron core can be conveniently regulated and controlled by changing the air gap holes connected with the iron-based amorphous plate, and the overall performance of the iron core is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of transformer cores, specifically to a high power density, anti-interference, and energy-saving core for transformers. Background Technology

[0002] The transformer core is the core component of a transformer. Its main function is to form a magnetic circuit and provide a stable magnetic flux for electromagnetic induction. The core is usually made of silicon steel sheets or other magnetic materials, and it has the characteristics of high permeability, low hysteresis loss and low eddy current loss. Through its high permeability, the core can efficiently transmit magnetic flux, thereby realizing voltage rise and fall. At the same time, the stability of the core is crucial to the efficiency and safety of the transformer. In practical applications, appropriate core materials can be selected to optimize performance based on the transformer's design requirements and cost considerations.

[0003] Transformer cores are classified into E-type, I-type, EI-type, and C-type cores according to their shape. Among them, the C-type core is mainly made of silicon steel strip wound into a U-shape and then spliced ​​to form a core structure with a closed magnetic circuit. Silicon steel strip is expensive, and the splicing process of the C-type core is more complicated, making it inconvenient to align and adjust the air gap, which affects the core performance and thus the working efficiency of the transformer. In addition, the core lacks anti-interference protection. Utility Model Content

[0004] This invention provides a high power density, anti-interference, and energy-saving iron core for transformers, which has the advantages of low cost, energy saving, easy alignment and splicing, and high performance anti-interference, thus solving the problems of high cost, inconvenient alignment, and lack of anti-interference protection of existing C-type iron cores.

[0005] This utility model provides the following technical solution: a high power density, anti-interference, and energy-saving iron core for a transformer, comprising an iron core body, wherein the iron core body includes a first C-type iron core and a second C-type iron core, and further includes a first shielding shell and a second shielding shell, wherein:

[0006] Both the first C-type iron core and the second C-type iron core are composed of multiple layers of iron-based amorphous ribbons, and the first C-type iron core and the second C-type iron core can be spliced ​​together;

[0007] The first shielding shell is symmetrically installed on the outer wall of the splice of the first C-shaped iron core. The first C-shaped iron core is wrapped inside the first shielding shell. The first C-shaped iron core is equipped with a connecting iron-based amorphous plate with an air gap.

[0008] The second shielding shell is symmetrically installed on the outer wall of the splicing point of the second C-shaped iron core. The second C-shaped iron core is wrapped inside the second shielding shell. The first shielding shell and the second shielding shell are used for splicing and positioning.

[0009] As a preferred technical solution of this utility model, both the first shielding shell and the second shielding shell are made of aluminum, and both the first shielding shell and the second shielding shell have multiple vertically distributed winding grooves on their outer walls.

[0010] As a preferred technical solution of this utility model, a splicing card frame is installed on the side of the first shielding shell near the second shielding shell, and a splicing card slot is provided on the side of the second shielding shell near the first shielding shell. The splicing card frame and the splicing card slot are movably connected and fit together.

[0011] As a preferred embodiment of this utility model, a splicing washer is installed on the inner wall at the bottom of the splicing slot, and the splicing washer is movably connected to and cooperates with the splicing frame.

[0012] As a preferred technical solution of this utility model, inside the first shielding shell of the iron-based amorphous plate, the upper and lower layers of the iron-based amorphous plate are respectively bonded to the first C-shaped iron core and the second C-shaped iron core.

[0013] As a preferred technical solution of this utility model, an air gap hole is formed on the upper surface of the iron-based amorphous plate, and the air gap hole extends to the outside of the first shielding shell on both sides.

[0014] As a preferred technical solution of this utility model, the air gap holes are provided in a plurality of them and are equally distributed on the iron-based amorphous plate, and the diameter of the air gap holes is 0.1mm-0.5mm.

[0015] Compared with the prior art, this utility model provides a high power density, anti-interference, and energy-saving iron core for an iron core transformer, which has the following beneficial effects:

[0016] 1. This utility model reduces the material cost of the iron core by replacing the traditional silicon steel strip with iron-based amorphous strip. The first and second aluminum shielding shells not only provide anti-interference shielding protection for the iron core, but also reduce the friction between the iron core and the coil. The air gap is set on the iron-based amorphous plate. During the processing stage before splicing, the air gap of the iron core can be easily adjusted by changing the air gap on the iron-based amorphous plate, thereby improving the overall performance of the iron core.

[0017] 2. This utility model, through the splicing frame and splicing slot, can quickly and accurately position two C-shaped iron cores during the splicing process, enabling the C-shaped iron cores to be quickly aligned and improving the efficiency of C-shaped iron core splicing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the assembled state of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged view of area A in the middle;

[0021] Figure 4 This is a schematic diagram of the first shielding shell structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the internal structure of the first shielding shell of this utility model;

[0023] Figure 6 This is a schematic diagram of the second shielding shell structure of this utility model.

[0024] In the diagram: 1. Iron core body; 11. First C-shaped iron core; 12. Second C-shaped iron core; 13. Iron-based amorphous strip; 2. First shielding shell; 21. Splicing frame; 22. Connecting iron-based amorphous plate; 23. Air gap hole; 24. Winding groove; 3. Second shielding shell; 31. Splicing slot; 32. Splicing washer. Detailed Implementation

[0025] 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. Example 1

[0026] Please refer to the appendix. Figure 1-6 A high-power-density, anti-interference, and energy-saving iron core for a transformer includes a core body 1, which comprises a first C-type iron core 11 and a second C-type iron core 12, and also includes a first shielding shell 2 and a second shielding shell 3, wherein:

[0027] Both the first C-type iron core 11 and the second C-type iron core 12 are composed of multiple layers of iron-based amorphous strips 13, and the first C-type iron core 11 and the second C-type iron core 12 can be spliced ​​together.

[0028] The first shielding shell 2 is symmetrically installed on the outer wall of the splice of the first C-shaped iron core 11. The first C-shaped iron core 11 is wrapped inside the first shielding shell 2. The first C-shaped iron core 11 is equipped with a connecting iron-based amorphous plate 22 with an air gap.

[0029] The second shielding shell 3 is symmetrically installed on the outer wall of the splicing point of the second C-shaped iron core 12. The second C-shaped iron core 12 is wrapped inside the second shielding shell 3. The first shielding shell 2 and the second shielding shell 3 are used for splicing and positioning.

[0030] Please refer to the appendix. Figure 1-2Both the first shielding shell 2 and the second shielding shell 3 are made of aluminum, and both the first shielding shell 2 and the second shielding shell 3 have multiple vertically distributed winding grooves 24 on their outer walls.

[0031] Specifically, the first shielding shell 2 and the second shielding shell 3 provide electromagnetic shielding protection for the iron core body 1 from the outside, improving the iron core's anti-interference ability, and the winding groove 24 facilitates the rapid winding and positioning of the iron core after splicing.

[0032] Please refer to the appendix. Figure 3 Appendix Figure 4 Appendix Figure 6 A splicing frame 21 is installed on the side of the first shielding shell 2 near the second shielding shell 3, and a splicing slot 31 is provided on the side of the second shielding shell 3 near the first shielding shell 2. The splicing frame 21 and the splicing slot 31 are movably connected and fit together.

[0033] Specifically, the splicing frame 21 and splicing slot 31 can quickly and accurately position the upper and lower first C-shaped iron cores 11 and second C-shaped iron cores 12 during splicing, thereby improving the efficiency of iron core splicing.

[0034] Furthermore, inside the first shielding shell 2 of the iron-based amorphous plate, the upper and lower layers of the iron-based amorphous plate are respectively bonded to the first C-shaped iron core 11 and the second C-shaped iron core 12.

[0035] Please refer to the appendix. Figure 6 A splicing washer 32 is installed on the inner wall at the bottom of the splicing slot 31. The splicing washer 32 is movably connected to and cooperates with the splicing frame 21.

[0036] Specifically, the splicing gasket 32 ​​can improve the sealing at the connection between the first shielding shell 2 and the second shielding shell 3, thus preventing gaps. Example 2

[0037] Based on the above embodiment one, please refer to the appendix. Figure 3 Appendix Figure 5 Appendix Figure 5 An air gap 23 is provided on the upper surface of the iron-based amorphous plate, and the air gap 23 extends to the outside of the first shielding shell 2 on both sides.

[0038] Furthermore, multiple air gap holes 23 are provided and are equidistantly distributed on the iron-based amorphous plate, and the aperture of the air gap holes 23 is preferably 0.2 mm.

[0039] In this embodiment, the air gaps are all set on the iron-based amorphous plate. Before splicing, the required number and size of air gap holes 23 can be opened on the iron-based amorphous plate according to the needs, so as to facilitate the adjustment of the air gap holes 23 to achieve higher magnetic permeability and lower leakage inductance.

[0040] The working principle and usage process of this utility model are as follows: Before splicing, a first shielding shell 2 that wraps the splicing part of the first C-shaped iron core 11 is symmetrically installed at the bottom of the first C-shaped iron core 11, and a second shielding shell 3 that wraps the splicing part of the second C-shaped iron core 12 is symmetrically installed at the bottom of the second C-shaped iron core 12.

[0041] With the splicing joint of the second C-shaped iron core 12 facing vertically upward and the splicing joint of the first C-shaped iron core 11 facing vertically downward, align the splicing frame 21 on the first shielding shell 2 of the first C-shaped iron core 11 with the splicing slot 31 on the second shielding shell 3 of the second C-shaped iron core 12. Then, move the first C-shaped iron core 11 downward so that the splicing frame 21 is inserted into the splicing slot 31. At this time, both the first C-shaped iron core 11 and the second C-shaped iron core 12 are in contact with the iron-based amorphous plate inside the first shielding shell 2. The air gap holes 23 on the iron-based amorphous plate that pass through the left and right sides of the first shielding shell 2 are the air gaps of the iron core.

[0042] It should be noted that the splicing steps of the C-type iron core include several steps such as applying glue for fixation, splicing and alignment, fixing and binding. The glue application part is not described in detail. The above steps refer to the splicing and alignment after applying glue for fixation.

Claims

1. A high power density anti-interference energy-saving core for a core transformer, comprising a core body (1), the core body (1) comprising a first C-shaped core (11) and a second C-shaped core (12), characterized in that, Also include the first shielding shell (2) and the second shielding shell (3), wherein: The first C-shaped core (11) and the second C-shaped core (12) are composed of multiple layers of iron-based amorphous strips (13), and the first C-shaped core (11) and the second C-shaped core (12) can be spliced with each other; The first shielding shell (2) is symmetrically installed on the outer wall of the splicing part of the first C-shaped core (11), the first C-shaped core (11) is wrapped in the first shielding shell (2), and the first C-shaped core (11) is provided with a connecting iron-based amorphous plate (22) with an air gap; The second shielding shell (3) is symmetrically installed on the outer wall of the splicing part of the second C-shaped core (12), the second C-shaped core (12) is wrapped in the second shielding shell (3), and the first shielding shell (2) and the second shielding shell (3) are used for splicing and positioning.

2. The high power density, anti-interference, energy-saving core for core transformer according to claim 1, characterized in that: The first shielding shell (2) and the second shielding shell (3) are both made of aluminum, and the outer walls of the first shielding shell (2) and the second shielding shell (3) are both provided with multiple vertically distributed winding grooves (24).

3. A high power density, anti-interference, energy-saving core for a core transformer according to claim 2, characterized in that: The first shielding shell (2) is provided with a splicing clamping frame (21) on the side close to the second shielding shell (3), the second shielding shell (3) is provided with a splicing clamping groove (31) on the side close to the first shielding shell (2), and the splicing clamping frame (21) and the splicing clamping groove (31) are movably connected and matched.

4. The high power density, anti-interference, energy-saving core for core transformer according to claim 3, characterized in that: The splicing clamping groove (31) is provided with a splicing gasket (32) movably connected and matched with the splicing clamping frame (21) on the inner bottom position of the inner wall.

5. A high power density, anti-interference, energy-saving core for a core transformer according to claim 4, characterized in that: The first shielding shell (2) is provided with an air gap hole (23) on the upper end face of the iron-based amorphous plate, and the air gap hole (23) extends to the outside of the first shielding shell (2) on both sides.

6. The high power density, anti-interference, energy-saving core for core transformer according to claim 1, characterized in that: The air gap hole (23) is provided with multiple air gap holes (23) and is equally distributed on the iron-based amorphous plate, and the air gap hole (23) has a hole diameter of 0.1mm-0.5mm.

7. A high power density, anti-interference, energy-saving core for a core transformer according to claim 6, characterized in that: ​

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