Rotor silicon steel sheet with good heat dissipation performance

Abstract

The utility model discloses a rotor silicon steel sheet with good heat dissipation performance, and relates to the technical field of rotors, and the rotor silicon steel sheet with good heat dissipation performance enables an electromagnetic coil to carry out airflow flowing from the inside to the outside through the sequential flowing of airflow from a first flow guide hole, a second flow guide hole, a third flow guide hole, a fourth flow guide hole and a fifth flow guide hole. Heat in the electromagnetic coil can be conveniently and rapidly taken out, heat wound by the winding plate into the electromagnetic coil can be conveniently and rapidly blown out for heat dissipation through the multiple layers of trapezoidal heat dissipation holes, air flows from the interior of the coil to the outer layer winding plate and to the outer side air to take away heat layer by layer, and heat discharge is accelerated through the multiple layers of trapezoidal heat dissipation holes according to the hot air rising principle. The multiple layers of holes are arranged to form a turbulence effect, a thermal boundary layer is destroyed, the heat dissipation efficiency is improved, when the coil is wound on the winding plate, heat is rapidly conducted out through the multiple layers of trapezoidal heat dissipation holes, and local overheating is avoided.

Description

A rotor silicon steel sheet with good heat dissipation Technical Field

[0001] This utility model relates to the field of rotor technology, specifically to a rotor silicon steel sheet with good heat dissipation. Background Technology

[0002] Rotor silicon steel sheets are the core material of motor rotor cores. They are typically stamped from high-silicon electrical steel, with a silicon content generally between 0.5% and 4.8%, and a thickness typically between 0.2mm and 0.5mm. The silicon steel sheets are coated with an insulating layer and formed into the rotor core through a lamination process. Silicon steel sheets possess excellent magnetic permeability, effectively reducing hysteresis losses. The addition of silicon increases the material's resistivity, reducing eddy current losses. The surface coating prevents inter-sheet short circuits, further suppressing eddy currents. Silicon steel sheets are manufactured through cold rolling or hot rolling processes, followed by stamping, lamination, and insulation treatment to finally form the rotor core. Rotor silicon steel sheets are widely used in various types of motors, playing an irreplaceable role, especially in high-efficiency energy-saving motors and high-speed motors.

[0003] The electromagnetic coils wound around the outside of the existing rotor silicon steel sheets generate heat during operation. The internal structure of the rotor silicon steel sheets makes it difficult to remove the heat from the electromagnetic coils layer by layer. This results in the silicon steel sheets being exposed to high temperatures for a long time, which leads to a decrease in magnetic permeability, an increase in hysteresis loss and eddy current loss, and a reduction in the energy conversion efficiency of the motor. This causes the motor to consume more electrical energy under the same load. The insulation material of the electromagnetic coils will age faster at high temperatures, and the insulation performance will deteriorate, leading to inter-turn short circuits or short circuits to ground, which in turn can cause motor failure or even burnout. Summary of the Invention

[0004] This invention provides a rotor silicon steel sheet with good heat dissipation, which has the advantage of rapid heat dissipation from the inside to the outside of the rotor silicon steel sheet electromagnetic coil, thus solving the problem of low heat dissipation efficiency inside the rotor silicon steel sheet electromagnetic coil.

[0005] To achieve rapid heat dissipation from the inside to the outside of the rotor silicon steel sheet electromagnetic coil, this utility model provides the following technical solution: a rotor silicon steel sheet with good heat dissipation, including a bearing, a plurality of rotor inner rings are uniformly installed on the outer surface of the bearing, six connecting plates are uniformly installed on the outer surface of each of the plurality of rotor inner rings, a rotor outer ring is installed on the outer surface of the six connecting plates, a heat dissipation air inlet oblique hole is opened inside the plurality of rotor outer rings, twelve winding plates are uniformly installed on the outer surface of the plurality of rotor outer rings, a first guide hole, a second guide hole, a third guide hole, a fourth guide hole and a fifth guide hole are respectively opened inside the plurality of winding plates, and the plurality of first guide holes, second guide holes, third guide holes, fourth guide holes and fifth guide holes are arranged sequentially to form a multi-layer trapezoidal heat dissipation hole.

[0006] As a preferred technical solution of this utility model, each of the plurality of first guide holes, plurality of second guide holes, plurality of third guide holes, plurality of fourth guide holes and plurality of fifth guide holes has an inclined surface inside.

[0007] As a preferred technical solution of this utility model, coil limiting components are installed on the outer surfaces of several winding plates, and heat dissipation arc holes are opened inside the coil limiting components.

[0008] As a preferred embodiment of this utility model, a fan blade is installed on the outer surface of the bearing, and connecting columns are evenly installed on the outer surface of the fan blade, with a sleeve being installed on the outer surface of several connecting columns.

[0009] Compared with the prior art, this utility model provides a rotor silicon steel sheet with good heat dissipation, which has the following beneficial effects:

[0010] The rotor silicon steel sheet with good heat dissipation allows airflow to flow sequentially through the first, second, third, fourth, and fifth guide holes, causing the airflow from the inside to the outside of the electromagnetic coil. This facilitates the rapid removal of heat from inside the electromagnetic coil. The multi-layered trapezoidal heat dissipation holes facilitate the rapid blowing out of the heat generated by the winding plate inside the electromagnetic coil. The airflow travels from the inside of the coil to the outer winding plate and then to the outside air, carrying away heat layer by layer. The multi-layered trapezoidal heat dissipation holes utilize the principle of hot air rising to accelerate heat dissipation. The arrangement of the multiple holes creates a turbulence effect, disrupting the thermal boundary layer and improving heat dissipation efficiency. When the winding plate winds the coil, heat is quickly discharged through the multi-layered trapezoidal heat dissipation holes, preventing localized overheating. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 is a schematic diagram of the internal structure of this utility model;

[0013] Figure 3 is a schematic diagram of the internal structure of the winding plate of this utility model;

[0014] Figure 4 is a schematic diagram of the multi-layer trapezoidal heat dissipation hole structure of this utility model.

[0015] In the diagram: 1. Rotor inner ring; 2. Bearing; 3. Connecting column; 4. Sleeve; 5. Fan blade; 6. Connecting plate; 7. Rotor outer ring; 8. Winding plate; 9. Coil limiting component; 10. Heat dissipation air inlet oblique hole; 11. First guide hole; 12. Second guide hole; 13. Third guide hole; 14. Fourth guide hole; 15. Fifth guide hole; 16. Inclined surface; 17. Multi-layer trapezoidal heat dissipation holes; 18. Heat dissipation arc hole. Detailed Implementation

[0016] 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.

[0017] Please refer to Figures 1-4. This utility model discloses a rotor silicon steel sheet with good heat dissipation, including a bearing 2. A plurality of rotor inner rings 1 are evenly installed on the outer surface of the bearing 2. Six connecting plates 6 are evenly installed on the outer surface of each of the rotor inner rings 1. A rotor outer ring 7 is installed on the outer surface of the six connecting plates 6. Each of the rotor outer rings 7 has a heat dissipation inlet oblique hole 10 inside. Twelve winding plates 8 are evenly installed on the outer surface of the rotor outer rings 7. A first [missing information - likely a winding plate] is opened inside each of the winding plates 8. The system comprises a first guide hole 11, a second guide hole 12, a third guide hole 13, a fourth guide hole 14, and a fifth guide hole 15. A plurality of first guide holes 11, second guide holes 12, third guide holes 13, fourth guide holes 14, and fifth guide holes 15 are arranged sequentially to form a multi-layered trapezoidal heat dissipation hole 17. Each of the first guide holes 11, second guide holes 12, third guide holes 13, fourth guide holes 14, and fifth guide holes 15 has an inclined surface 1 inside. 6. The airflow passes through the first guide hole 11, the second guide hole 12, the third guide hole 13, the fourth guide hole 14, and the fifth guide hole 15, causing the airflow to flow sequentially from the inside to the outside of the electromagnetic coil. This facilitates the rapid removal of heat from inside the electromagnetic coil. Furthermore, the presence of multiple first guide holes 11, second guide holes 12, third guide holes 13, and fourth guide holes... The arrangement of 14 and several fifth guide holes 15 in sequence forms a multi-layer trapezoidal heat dissipation hole 17, which facilitates the rapid dissipation of heat from the winding plate 8 wound inside the electromagnetic coil. The air is also dissipated through the heat dissipation arc hole 18 of the coil limiting member 9. The heat dissipation arc hole 18 accelerates the airflow. The airflow travels from the inside of the coil to the outer winding plate 8 and then to the outer air, carrying away heat layer by layer. The multi-layer trapezoidal heat dissipation hole 17 utilizes the principle of hot air rising to accelerate heat dissipation. The arrangement of the multi-layer holes creates a turbulence effect, which breaks the thermal boundary layer and improves the heat dissipation efficiency.

[0018] Several winding plates 8 are equipped with coil limiting components 9 on their outer surfaces. Several coil limiting components 9 are provided with heat dissipation arc holes 18 inside. The heat dissipation arc holes 18 accelerate the air flow, and the airflow goes from the inside of the coil to the outer winding plate 8 and then to the outside air.

[0019] Fan blades 5 are mounted on the outer surface of bearing 2. Connecting posts 3 are evenly mounted on the outer surface of fan blades 5. A sleeve 4 is mounted on the outer surface of several connecting posts 3. The fan blades 5 drive the sleeve 4 to rotate through the connecting posts 3, thereby blowing air into the electromagnetic coils of the inner ring 1 and outer ring 7 of the rotor. The rotation of the fan blades 5 forces air into the electromagnetic coil areas of the inner and outer rings of the rotor, forming a directional airflow to ensure rapid heat dissipation of the electromagnetic coils, significantly reducing problems such as insulation aging and magnetic material degradation caused by overheating. The aerodynamic shape of the fan blades 5 and the support structure of the sleeve 4 can reduce aerodynamic noise and mechanical vibration generated during rotation, improving the stability of equipment operation.

[0020] The working principle and usage process of this utility model are as follows: When the bearing 2 rotates, it drives the fan blades 5 to rotate. The fan blades 5, through the connecting column 3, drive the sleeve 4 to rotate, thereby blowing air into the electromagnetic coils of the inner ring 1 and outer ring 7 of the rotor. The fan blades 5, through rotation, force air into the electromagnetic coil areas of the inner and outer rings of the rotor, forming a directional airflow. This ensures rapid heat dissipation of the electromagnetic coils, significantly reducing problems such as insulation aging and magnetic material degradation caused by overheating. The aerodynamic shape of the fan blades 5 and the support structure of the sleeve 4 can reduce aerodynamic noise and mechanical vibration generated during rotation, improving the stability of equipment operation.

[0021] Furthermore, a portion of the airflow enters the electromagnetic coil area through the heat dissipation inlet oblique hole 10 of the rotor inner ring 1, thereby achieving heat dissipation from the inside to the outside of the electromagnetic coil. The airflow passes through the first guide hole 11, the second guide hole 12, the third guide hole 13, the fourth guide hole 14, and the fifth guide hole 15, allowing the airflow to flow sequentially from the inside to the outside of the electromagnetic coil winding. This facilitates the rapid removal of heat from inside the electromagnetic coil. The sequential arrangement of several first guide holes 11, second guide holes 12, third guide holes 13, fourth guide holes 14, and fifth guide holes 15 forms a multi-layered trapezoidal heat dissipation hole 17 for convenient... The heat generated by the winding plate 8 winding inside the electromagnetic coil is quickly blown out for heat dissipation, and the gas is also dissipated through the heat dissipation arc holes 18 of the coil limiting member 9. The heat dissipation arc holes 18 accelerate the air flow, and the airflow carries away the heat layer by layer from the inside of the coil to the outer winding plate 8 and then to the outside air. The multi-layer trapezoidal heat dissipation holes 17 utilize the principle of hot air rising to accelerate the heat dissipation. The arrangement of multiple holes forms a turbulence effect, which breaks the thermal boundary layer and improves the heat dissipation efficiency. When the winding plate 8 winds the coil, the heat is quickly discharged through the multi-layer trapezoidal heat dissipation holes 17 to avoid local overheating. Several first guide holes 11, several second guide holes 12, several third guide holes 13, several fourth guide holes 14 and several fifth guide holes 15 are all provided with inclined surfaces 16 to facilitate the guidance of gas.

[0022] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotor silicon steel sheet with good heat dissipation, comprising a bearing (2), characterized in that: The outer surface of the bearing (2) is uniformly equipped with a plurality of rotor inner rings (1), and the outer surface of each of the plurality of rotor inner rings (1) is uniformly equipped with six connecting plates (6). The outer surface of the six connecting plates (6) is uniformly equipped with a rotor outer ring (7). The interior of each of the plurality of rotor outer rings (7) is provided with a heat dissipation air inlet oblique hole (10). The outer surface of each of the plurality of rotor outer rings (7) is uniformly equipped with twelve winding plates (8). The interior of each of the plurality of winding plates (8) is provided with a first guide hole (11), a second guide hole (12), a third guide hole (13), a fourth guide hole (14), and a fifth guide hole (15). The plurality of first guide holes (11), second guide holes (12), third guide holes (13), fourth guide holes (14), and fifth guide holes (15) are arranged in sequence to form a multi-layer trapezoidal heat dissipation hole (17).

2. The rotor silicon steel sheet with good heat dissipation according to claim 1, characterized in that: An inclined surface (16) is provided inside each of the first guide hole (11), the second guide hole (12), the third guide hole (13), the fourth guide hole (14), and the fifth guide hole (15).

3. The rotor silicon steel sheet with good heat dissipation according to claim 1, characterized in that: A coil limiting member (9) is installed on the outer surface of several winding plates (8), and a heat dissipation arc hole (18) is opened inside the several coil limiting members (9).

4. The rotor silicon steel sheet with good heat dissipation according to claim 1, characterized in that: The outer surface of the bearing (2) is equipped with a fan blade (5), and the outer surface of the fan blade (5) is uniformly equipped with connecting columns (3), and the outer surface of several connecting columns (3) is jointly equipped with a sleeve (4).

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