High-standard silicon steel sheet for motor

Abstract

The high-standard silicon steel sheet comprises a silicon steel sheet, an arc-shaped base plate, positioning columns and expansion grooves, the silicon steel sheet is arranged on the inner side of the arc-shaped base plate, the expansion grooves are formed in the inner side of the silicon steel sheet at equal intervals, the expansion grooves are semicircular, and the two ends of each expansion groove penetrate through the silicon steel sheet. A heat absorption layer is arranged on the outer surface layer of the silicon steel sheet. The novel silicon steel sheet can improve magnetic conductivity, is large in resistance, has an obvious magnetic conduction effect in a motor, has a heat absorption function, and is suitable for wide popularization and application.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon steel sheets, and particularly relates to a high-standard silicon steel sheet for motors. Background Technique

[0002] Silicon steel sheets are alloy materials with high magnetic permeability and high resistance. They play a role in guiding magnetism in motors. They are in sheet form and coated with insulating paint to reduce eddy current losses. The production of silicon steel sheets is difficult due to complex processes and narrow process windows, and they are regarded as artworks among steel products, especially grain-oriented silicon steel sheets.

[0003] Traditional silicon steel sheets have the following disadvantages: 1. Silicon steel sheets cannot improve magnetic permeability and have small resistance, so their role in guiding magnetism in motors is not obvious; 2. They do not have the function of absorbing heat. For this reason, we propose a high-standard silicon steel sheet for motors. Summary of the Invention

[0004] The main purpose of the utility model is to provide a high-standard silicon steel sheet for motors, which can effectively solve the problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A high-standard silicon steel sheet for motors, including a silicon steel sheet, an arc-shaped backing plate, positioning columns, and expansion slots. The silicon steel sheet is arranged inside the arc-shaped backing plate. The expansion slots are equidistantly arranged inside the silicon steel sheet. The expansion slots are semicircular and both ends of the expansion slots penetrate the silicon steel sheet. A heat-absorbing layer is arranged on the outer surface layer of the silicon steel sheet.

[0007] Furthermore, limiting blocks integrated with the silicon steel sheet are arranged at both ends of the outer side of the silicon steel sheet, and limiting slots corresponding to the limiting blocks are arranged at both ends of the inner side of the arc-shaped backing plate. The limiting blocks are located in the limiting slots.

[0008] Furthermore, the heat-absorbing layer is a black chromium heat-absorbing coating. By using the heat-absorbing layer as a black chromium heat-absorbing coating, the heat inside the motor housing can be absorbed, the heat dissipation rate of the motor can be improved, and eddy current losses can be reduced.

[0009] Furthermore, positioning columns are welded at both ends of the outer side of the arc-shaped backing plate, and the arc-shaped backing plate is made of ceramic material.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The high-standard silicon steel sheet for a motor of the present utility model utilizes the expansion slots equidistantly arranged on the inner side of the silicon steel sheet to increase the exposed area of the silicon steel sheet. With the increased exposed area, its magnetic permeability is high and the resistance is large, playing a role in magnetic conduction in the motor. The heat absorption layer is a black chromium heat absorption coating, which can absorb the heat inside the motor housing, improve the heat dissipation rate of the motor, and reduce eddy current loss.

[0012] 2. The high-standard silicon steel sheet for a motor of the present utility model utilizes the limiting block located in the limiting slot to facilitate quickly limiting the silicon steel sheet on the arc-shaped backing plate, preventing it from slipping during use. The positioning column facilitates positioning the overall silicon steel sheet structure inside the motor housing, making it convenient for installation and disassembly, with strong practicability and remarkable effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the high-standard silicon steel sheet for a motor of the present utility model.

[0014] Figure 2 It is a schematic diagram of the limiting slot and limiting block structure of the high-standard silicon steel sheet for a motor of the present utility model.

[0015] Figure 3 It is a schematic diagram of the heat absorption layer structure of the high-standard silicon steel sheet for a motor of the present utility model.

[0016] In the figure: 1, expansion slot; 2, silicon steel sheet; 3, arc-shaped backing plate; 4, limiting slot; 5, limiting block; 6, heat absorption layer; 7, positioning column. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] As Figures 1 - 3 shown, a high-standard silicon steel sheet for a motor includes a silicon steel sheet 2, an arc-shaped backing plate 3, a positioning column 7 and an expansion slot 1. The silicon steel sheet 2 is arranged inside the arc-shaped backing plate 3. The expansion slots 1 are equidistantly opened on the inner side of the silicon steel sheet 2. The expansion slots 1 are semicircularly arranged and both ends of the expansion slots 1 penetrate the silicon steel sheet 2. The outer surface layer of the silicon steel sheet 2 is provided with a heat absorption layer 6.

[0019] Among them, limiting blocks 5 integrally formed with the silicon steel sheet 2 are arranged at both ends of the outer side of the silicon steel sheet 2. Limiting slots 4 corresponding to the limiting blocks 5 are arranged at both ends of the inner side of the arc-shaped backing plate 3. The limiting blocks 5 are located in the limiting slots 4.

[0020] Among them, the heat absorption layer 6 is a black chromium heat absorption coating.

[0021] In this embodiment, as Figure 3As shown, by using the heat-absorbing layer 6 as a black chromium heat-absorbing coating, the heat inside the motor housing can be absorbed, the heat dissipation rate of the motor can be increased, and the eddy current loss can be reduced.

[0022] Wherein, positioning columns 7 are welded to both outer ends of the arc-shaped backing plate 3, and the arc-shaped backing plate 3 is made of ceramic material.

[0023] In this embodiment, as Figure 1 shown, the arc-shaped backing plate 3 is made of ceramic material, has high strength, is corrosion-resistant, and has no interference with the silicon steel sheet 2.

[0024] It should be noted that the present utility model is a high-standard silicon steel sheet for a motor. During operation, by using the expansion slots 1 arranged at equal distances on the inner side of the silicon steel sheet 2, the exposed area of the silicon steel sheet 2 is increased. With the increase in the exposed area, its magnetic permeability is high and its resistance is large, playing a role in magnetic conduction in the motor. By using the heat-absorbing layer 6 as a black chromium heat-absorbing coating, the heat inside the motor housing can be absorbed, the heat dissipation rate of the motor can be increased, and the eddy current loss can be reduced. By using the limiting block 5 located in the limiting slot 4, it is convenient to quickly limit the silicon steel sheet 2 on the arc-shaped backing plate 3 to prevent slipping during use. By using the positioning column 7, it is convenient to position the overall silicon steel sheet structure in the motor housing, facilitating installation and disassembly, with strong practicability and remarkable effects.

[0025] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-standard silicon steel sheet for an electric motor, comprising a silicon steel sheet (2), an arc-shaped backing plate (3), a positioning column (7) and an expansion slot (1), characterized in that: A silicon steel sheet (2) is arranged on the inner side of the arc-shaped pad (3), expansion grooves (1) are provided on the inner side of the silicon steel sheet (2) at equal distances, the expansion grooves (1) are arranged in a semicircular shape and both ends of the expansion grooves (1) pass through the silicon steel sheet (2), and a heat absorption layer (6) is provided on the outer surface of the silicon steel sheet (2).

2. The high-grade silicon steel sheet for electric motor according to claim 1, characterized in that: The two outer ends of the silicon steel sheet (2) are provided with integral limit blocks (5), and the two inner ends of the arc-shaped pad (3) are provided with limit grooves (4) corresponding to the limit blocks (5), and the limit blocks (5) are located in the limit grooves (4).

3. The high-grade silicon steel sheet for electric motor according to claim 1, characterized in that: The heat absorbing layer (6) is a black chrome heat absorbing coating.

4. The high-grade silicon steel sheet for electric motor according to claim 1, characterized in that: Positioning columns (7) are welded to the two outer ends of the arc-shaped pad (3), and the arc-shaped pad (3) is made of ceramic material.

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