Silicon steel sheet

Abstract

The utility model discloses a silicon steel sheet which comprises a silicon steel sheet body. One surface of the silicon steel sheet body is coated with the inorganic insulating material layer; the organic insulating material layer is coated on the other surface, opposite to the inorganic insulating material layer, of the silicon steel sheet body; wherein a plurality of stress releasing grooves are sequentially formed in the edge of the silicon steel sheet body, positioning protrusions are arranged on one face of the silicon steel sheet body, positioning grooves are formed in the other face of the silicon steel sheet body, and the positioning protrusions of the silicon steel sheet body are matched with the positioning grooves of the adjacent silicon steel sheet body. High insulating strength and high-temperature resistance are provided by arranging the inorganic insulating material layer, flexibility and adhesive force are increased by the organic insulating material layer, stress concentration generated in the processing and using process is relieved through the stress release grooves, the influence of stress on magnetic performance is avoided, and stacking is facilitated through the positioning protrusions and the positioning grooves.

Description

Technical Field

[0001] This utility model relates to the field of silicon steel sheet technology, and more particularly to a silicon steel sheet. Background Technology

[0002] Under the influence of an alternating magnetic field, significant energy loss occurs due to hysteresis and eddy current effects, leading to reduced efficiency and excessive heat generation in equipment such as motors and transformers. During processing and use, silicon steel sheets may experience a decrease in magnetic properties due to stress, affecting their magnetic permeability. Existing silicon steel sheets may suffer from uneven quality or damage in the insulating coating, resulting in inter-sheet short circuits and increased eddy current losses. Furthermore, during the stacking process, existing silicon steel sheets may have a low stacking coefficient due to irregular sheet shapes and dimensional deviations, affecting compactness and performance. Based on these issues, a new silicon steel sheet was designed. Utility Model Content

[0003] To overcome at least one of the defects described in the prior art, this utility model provides a silicon steel sheet. It provides high insulation strength and high-temperature resistance through an inorganic insulating material layer, increases flexibility and adhesion through an organic insulating material layer, alleviates stress concentration during processing and use through stress relief grooves to prevent stress from affecting magnetic properties, and facilitates stacking via positioning protrusions and positioning grooves, thus aiding in positioning, fixing, and transportation.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A silicon steel sheet includes: a silicon steel sheet body; an inorganic insulating material layer coated on one side of the silicon steel sheet body; and an organic insulating material layer coated on the other side of the silicon steel sheet body opposite to the inorganic insulating material layer. A plurality of stress relief grooves are sequentially provided along the edge of the silicon steel sheet body. One side of the silicon steel sheet body has a positioning protrusion, and the other side has a positioning groove. The positioning protrusion of the silicon steel sheet body engages with the adjacent positioning groove of the silicon steel sheet body.

[0006] By adopting the above scheme, high insulation strength and high temperature resistance are provided by setting an inorganic insulating material layer, flexibility and adhesion are increased by setting an organic insulating material layer, stress relief grooves are used to alleviate stress concentration during processing and use, avoid the influence of stress on magnetic properties, and positioning protrusions and positioning grooves facilitate stacking, which is convenient for auxiliary positioning, fixing and transportation.

[0007] Furthermore, the inorganic insulating material layer is an alumina ceramic coating.

[0008] By adopting the above scheme, alumina ceramic coating can provide high insulation strength and high temperature resistance.

[0009] Furthermore, the organic insulating material layer is made of polyester varnish.

[0010] By adopting the above method, polyester varnish can enhance flexibility and adhesion while ensuring the integrity of insulation.

[0011] Furthermore, the stress relief grooves are equidistantly arranged along the edge of the silicon steel sheet body.

[0012] By adopting the above solution and setting stress relief grooves at the edges, stress concentration in different components can be avoided.

[0013] Furthermore, the stress relief groove is arc-shaped or trapezoidal.

[0014] By adopting the above scheme, the arc-shaped or trapezoidal stress relief groove can alleviate the stress concentration generated during processing and use, and avoid the influence of stress on magnetic properties.

[0015] Furthermore, the positioning protrusions and positioning grooves are evenly distributed at the four corners of the silicon steel sheet body.

[0016] By adopting the above scheme, and by setting the positioning protrusions and positioning grooves at the four corners, it is convenient for the silicon steel sheet body to be tightly connected and matched with the adjacent silicon steel sheet body, ensuring the accurate stacking of the silicon steel sheet body and improving the stacking coefficient.

[0017] In summary, the silicon steel sheet provided by this utility model has the following technical effects:

[0018] 1. High insulation and high temperature resistance are provided by setting an inorganic insulating material layer;

[0019] 2. Enhance flexibility and adhesion by adding an organic insulating material layer;

[0020] 3. By setting stress relief grooves, stress concentration generated during processing and use can be alleviated, thus avoiding the impact of stress on magnetic properties;

[0021] 4. The silicon steel sheets are stacked neatly by setting positioning protrusions and positioning grooves. Attached Figure Description

[0022] Figure 1 This is a plan view of an embodiment of the present utility model;

[0023] Figure 2 This is a side view of an embodiment of the present utility model;

[0024] The meanings of the reference numerals in the attached drawings are as follows: 1. Silicon steel sheet body; 2. Inorganic insulating material layer; 3. Organic insulating material layer; 4. Stress relief groove; 5. Positioning protrusion; 6. Positioning groove. Detailed Implementation

[0025] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0026] To facilitate understanding of the embodiments of this utility model, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments. These embodiments do not constitute a limitation on the embodiments of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] See Figures 1-2 This utility model discloses a silicon steel sheet, comprising a silicon steel sheet body 1, an inorganic insulating material layer 2, and an organic insulating material layer 3. The silicon steel sheet body 1 is made of high-purity iron-silicon alloy, and a rolling process is used to ensure the flatness of the silicon steel sheet and reduce magnetic property degradation caused by processing stress. One surface of the silicon steel sheet body 1 is coated with the inorganic insulating material layer 2, and the other surface is coated with the organic insulating material layer 3. More specifically, the inorganic insulating material layer 2 is an alumina ceramic coating, which provides high insulation strength and high-temperature resistance. The organic insulating material layer 3 is a polyester varnish, which enhances flexibility and adhesion, and ensures the integrity of the insulation. Both the inorganic insulating material layer 2 and the organic insulating material layer 3 are tightly bonded to the silicon steel sheet body 1 using adhesive bonding to ensure the integrity of the insulation.

[0030] In this embodiment, multiple stress relief grooves 4 are sequentially arranged along the edge of the silicon steel sheet body 1. One side of the silicon steel sheet body 1 has a positioning protrusion 5, and the other side has a positioning groove 6. The positioning protrusion 5 of the silicon steel sheet body 1 cooperates with the adjacent positioning groove 6. The stress relief grooves 4 alleviate stress concentration generated during processing and use, preventing stress from affecting magnetic properties. The positioning protrusion 5 and positioning groove 6 facilitate stacking, aiding in positioning, fixing, and transportation. In this embodiment, the stress relief grooves 4 are equidistantly arranged along the edge of the silicon steel sheet body 1. By providing stress relief grooves 4 along the edge, stress concentration between different components can be avoided. The stress relief grooves 4 are arc-shaped or trapezoidal. Arc-shaped or trapezoidal stress relief grooves 4 can alleviate stress concentration generated during processing and use, preventing stress from affecting magnetic properties. In this embodiment, the positioning protrusions 5 and positioning grooves 6 are evenly distributed at the four corners of the silicon steel sheet body 1. By setting the positioning protrusions 5 and positioning grooves 6 at the four corners, it is convenient for the silicon steel sheet body 1 to be tightly connected and cooperate with the adjacent silicon steel sheet body 1, ensuring the accurate stacking of the silicon steel sheet body 1 and improving the stacking coefficient.

[0031] In summary, the silicon steel sheet provided by this utility model has the following technical effects:

[0032] 1. High insulation and high temperature resistance are provided by setting an inorganic insulating material layer 2;

[0033] 2. Flexibility and adhesion are enhanced by setting an organic insulating material layer 3;

[0034] 3. By setting the stress relief groove 4, stress concentration generated during processing and use can be alleviated, thus avoiding the influence of stress on magnetic properties;

[0035] 4. The silicon steel sheet body 1 is neatly stacked by setting positioning protrusions 5 and positioning grooves 6.

[0036] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A silicon steel sheet, characterized in that, include: Silicon steel sheet body; An inorganic insulating material layer is coated on one side of the silicon steel sheet body; An organic insulating material layer is coated on the opposite side of the silicon steel sheet body and the inorganic insulating material layer. The silicon steel sheet body has multiple stress relief grooves arranged sequentially along its edge. One side of the silicon steel sheet body has a positioning protrusion, and the other side has a positioning groove. The positioning protrusion of the silicon steel sheet body cooperates with the positioning groove of the adjacent silicon steel sheet body.

2. The silicon steel sheet according to claim 1, characterized in that, The inorganic insulating material layer is made of alumina ceramic coating.

3. A silicon steel sheet according to claim 2, characterized in that, The organic insulating material layer is made of polyester varnish.

4. A silicon steel sheet according to claim 3, characterized in that, The stress relief grooves are equidistantly arranged along the edge of the silicon steel sheet body.

5. A silicon steel sheet according to claim 4, characterized in that, The stress relief groove is arc-shaped or trapezoidal.

6. A silicon steel sheet according to claim 5, characterized in that, The positioning protrusions and positioning grooves are evenly distributed at the four corners of the silicon steel sheet body.

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