Motor magnetic tile

Abstract

The utility model discloses a motor magnetic shoe, which comprises a magnetic shoe body, the inner side surface of the magnetic shoe body is provided with a plurality of arc-shaped grooves arranged at equal angles, and the magnetic shoe body comprises a wear-resistant layer, a waterproof layer, a corrosion-resistant layer, a high-temperature-resistant layer, a reinforcing layer and a corrosion-resistant layer which are sequentially arranged from top to bottom; by arranging the plurality of arc-shaped grooves, a magnetic circuit between the magnetic tile body and the stator can be changed, so that the magnetic field distribution is more uniform, the magnetic field may be concentrated in some areas in a traditional plane fitting mode, the magnetic field can be guided to be more uniformly distributed on the whole contact surface due to the existence of the arc-shaped grooves, and the magnetic field uniformity is improved; the magnetic utilization rate of the magnetic shoe body can be improved to a certain extent, the uniform magnetic field can reduce torque fluctuation and improve the operation stability and precision of the motor, the arc-shaped grooves can cut off the circulation path of eddy current, the eddy current is reduced, the eddy current loss is effectively reduced, and the efficiency and reliability of the motor are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic tiles, and in particular relates to a motor magnetic tile. Background Art

[0002] Motor magnetic tiles are a type of permanent magnet that is mainly used in permanent magnet motors. Magnetic tiles are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, permanent magnet motors use permanent magnetic materials to generate a constant magnetic potential source. This can make the motor simple in structure, easy to maintain, light in weight, small in size, and reliable in use. However, the existing technology has the following shortcomings when used:

[0003] After actual production, the existing magnetic tiles have an arc-shaped tile shape. After the magnetic tiles are installed, if the magnetic field of the motor changes during the operation of the motor, it may affect the working state of the motor, making it difficult to ensure the output performance of the motor under different states. At the same time, it is difficult to improve the magnetic utilization rate of the magnetic tiles, and there are certain disadvantages in actual application. Summary of the Invention

[0004] The present invention aims to solve the problem that the existing magnetic tiles in the prior art have an arc-shaped tile shape after actual production. After the magnetic tiles are installed, if the magnetic field of the motor changes during the operation of the motor, the working state of the motor may be affected, making it difficult to ensure the output performance of the motor in different states. At the same time, it is difficult to improve the magnetic utilization rate of the magnetic tiles. There are certain drawbacks in actual application. The following technical solutions are proposed:

[0005] A motor magnetic tile comprises a magnetic tile body, the inner surface of which is provided with a plurality of arc grooves arranged at equal angles. The magnetic tile body comprises a wear-resistant layer, a waterproof layer, a corrosion-resistant layer, a high-temperature resistant layer, a reinforcement layer and an anti-rust layer arranged in sequence from top to bottom.

[0006] As a preferred embodiment of the above technical solution, the extending direction of the arc-shaped groove is consistent with the extending direction of the length of the magnetic tile body.

[0007] As a preferred embodiment of the above technical solution, the wear-resistant layer is fixedly connected to the waterproof layer, the waterproof layer is fixedly connected to the corrosion-resistant layer, the corrosion-resistant layer is fixedly connected to the high-temperature resistant layer, the high-temperature resistant layer is fixedly connected to the reinforcement layer, and the reinforcement layer is fixedly connected to the anti-corrosion layer.

[0008] As a preferred embodiment of the above technical solution, the wear-resistant layer is made of aluminum oxide, the waterproof layer is made of polytetrafluoroethylene, the corrosion-resistant layer is made of nickel-chromium alloy, the high-temperature resistant layer is made of ceramic fiber, the reinforcement layer is made of carbon fiber reinforced material, and the anti-corrosion layer is a chrome-plated layer.

[0009] As a preferred embodiment of the above technical solution, the magnetic tile body is in an arc-shaped convex shape.

[0010] As a preferred embodiment of the above technical solution, the left and right end faces of the magnetic tile body are both perpendicular to the extension direction of the arc-shaped groove.

[0011] As a preferred embodiment of the above technical solution, the thickness of the magnetic tile body is between 3 and 8 mm.

[0012] The beneficial effects of the utility model are:

[0013] (1) By opening a number of arc-shaped slots, the magnetic circuit between the magnetic tile body and the stator can be changed, making the magnetic field distribution more uniform. The traditional planar bonding method may cause the magnetic field to concentrate in certain areas, while the presence of the arc-shaped slots can guide the magnetic field to be more evenly distributed on the entire contact surface, improving the uniformity of the magnetic field and, to a certain extent, improving the magnetic utilization rate of the magnetic tile body. During the operation of the motor, the uniform magnetic field can reduce torque fluctuations and improve the operating stability and accuracy of the motor. The changing magnetic field between the magnetic tile body and the stator will generate eddy currents in the conductor, which will cause energy loss, reduce the efficiency of the motor, and generate heat. The presence of the arc-shaped slots can cut off the flow path of the eddy currents, reduce the generation of eddy currents, effectively reduce eddy current losses, improve the efficiency and reliability of the motor, and ensure the output performance of the motor.

[0014] (2) The wear-resistant layer can enhance the wear resistance of the magnetic tile body, the waterproof layer can improve the waterproof effect of the magnetic tile body, the corrosion-resistant layer is used to enhance the corrosion resistance of the magnetic tile body, the high-temperature resistant layer is used to enhance the high-temperature resistance of the magnetic tile body, the reinforcing layer is used to strengthen the strength of the magnetic tile body, and the anti-corrosion layer can enhance the anti-corrosion ability of the magnetic tile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is one of the overall structural diagrams of the utility model;

[0016] Figure 2 Shown is the second schematic diagram of the overall structure of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the cross-sectional structure of the magnetic tile body in the utility model;

[0018] Figure 4 Shown is the third schematic diagram of the overall structure of the present utility model.

[0019] In the figure: 1. Magnetic tile body; 2. Arc groove; 3. Wear-resistant layer; 4. Waterproof layer; 5. Corrosion-resistant layer; 6. High-temperature resistant layer; 7. Reinforcement layer; 8. Anti-corrosion layer. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] Example

[0022] Figure 1-4 What is shown is a structural schematic diagram of the present utility model. Figure 1-4 In the present invention, a motor magnetic tile includes a magnetic tile body 1, the inner surface of the magnetic tile body 1 is provided with a plurality of arc grooves 2 arranged at equal angles, and the magnetic tile body 1 includes a wear-resistant layer 3, a waterproof layer 4, a corrosion-resistant layer 5, a high-temperature resistant layer 6, a reinforcement layer 7 and an anti-corrosion layer 8 arranged in sequence from top to bottom.

[0023] By opening a number of arc-shaped slots 2, the magnetic circuit between the magnetic tile body 1 and the stator can be changed to make the magnetic field distribution more uniform. The traditional planar bonding method may cause the magnetic field to concentrate in certain areas, while the presence of the arc-shaped slots 2 can guide the magnetic field to be more evenly distributed on the entire contact surface, thereby improving the uniformity of the magnetic field and, to a certain extent, improving the magnetic utilization rate of the magnetic tile body 1. At the same time, during the operation of the motor, the uniform magnetic field can reduce torque fluctuations and improve the operating stability and accuracy of the motor. The changing magnetic field between the magnetic tile body 1 and the stator will generate eddy currents in the conductor, which will cause energy loss, reduce the efficiency of the motor, and generate heat. The presence of the arc-shaped slots 2 can cut off the flow path of the eddy currents, reduce the generation of eddy currents, effectively reduce eddy current losses, and improve the efficiency and reliability of the motor.

[0024] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model. Figure 1 In the embodiment, the extending direction of the arc groove 2 is consistent with the extending direction of the length of the magnetic tile body 1.

[0025] The direction in which the arc groove 2 extends is consistent with the length extension direction of the magnetic tile body 1, which can make the magnetic field distribution more uniform. The traditional planar bonding method may cause the magnetic field to concentrate in certain areas, while the existence of the arc groove 2 can guide the magnetic field to be more evenly distributed on the entire contact surface, thereby improving the uniformity of the magnetic field and, to a certain extent, improving the magnetic utilization rate of the magnetic tile body 1.

[0026] Figure 3 Shown is a schematic diagram of the cross-sectional structure of the magnetic tile body in the present invention. Figure 3 In the figure, the wear-resistant layer 3 is fixedly connected to the waterproof layer 4, the waterproof layer 4 is fixedly connected to the corrosion-resistant layer 5, the corrosion-resistant layer 5 is fixedly connected to the high-temperature resistant layer 6, the high-temperature resistant layer 6 is fixedly connected to the reinforcement layer 7, and the reinforcement layer 7 is fixedly connected to the anti-corrosion layer 8.

[0027] Ensure the overall stability of the magnetic tile body 1.

[0028] Figure 3 Shown is a schematic diagram of the cross-sectional structure of the magnetic tile body in the present invention. Figure 3 Among them, the wear-resistant layer 3 is made of aluminum oxide, the waterproof layer 4 is made of polytetrafluoroethylene, the corrosion-resistant layer 5 is made of nickel-chromium alloy, the high-temperature resistant layer 6 is made of ceramic fiber, the reinforcement layer 7 is made of carbon fiber reinforced material, and the anti-corrosion layer 8 is a chrome-plated layer.

[0029] By setting up the wear-resistant layer 3, the wear resistance of the magnetic tile body 1 can be enhanced, the waterproof layer 4 can improve the waterproof effect of the magnetic tile body 1, the corrosion-resistant layer 5 is used to enhance the corrosion resistance of the magnetic tile body 1, the high-temperature resistant layer 6 is used to enhance the high-temperature resistance of the magnetic tile body 1, the reinforcing layer 7 is used to strengthen the strength of the magnetic tile body 1, and the anti-corrosion layer 8 can enhance the anti-corrosion ability of the magnetic tile body 1.

[0030] Figure 4 Shown is a schematic structural diagram of the magnetic tile body in the present invention. Figure 4 In the figure, the magnetic tile body 1 is an arc-shaped convex shape.

[0031] The shape of the arc-shaped protrusion can increase the structural strength of the magnetic tile body 1. Compared with the flat-shaped magnetic tile, the arc-shaped protrusion structure has better mechanical properties and better stability when subjected to external pressure and vibration.

[0032] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model. Figure 1 In the embodiment, the left and right end surfaces of the magnetic tile body 1 are both perpendicular to the extending direction of the arc-shaped slot 2.

[0033] The presence of the arc-shaped groove 2 can cut off the flow path of the eddy current, reduce the generation of eddy current, effectively reduce eddy current loss, and improve the efficiency and reliability of the motor.

[0034] Figure 4 What is shown is a schematic diagram of the overall structure of the utility model. Figure 4 In the embodiment, the thickness of the magnetic tile body 1 is between 3 and 8 mm.

[0035] Selecting an appropriate thickness can ensure that the magnetic tile body can generate sufficient magnetic flux.

[0036] Working principle: After the magnetic tile body 1 is installed on the stator, when the motor is working, the magnetic circuit between the magnetic tile body 1 and the stator can be changed by opening a number of arc-shaped slots 2, making the magnetic field distribution more uniform. The traditional plane fitting method may cause the magnetic field to concentrate in certain areas, while the presence of the arc-shaped slots 2 can guide the magnetic field to be more evenly distributed on the entire contact surface, thereby improving the uniformity of the magnetic field and, to a certain extent, improving the magnetic utilization rate of the magnetic tile body 1. At the same time, during the operation of the motor, the uniform magnetic field can reduce torque fluctuations and improve the operating stability and accuracy of the motor. The changing magnetic field between the magnetic tile body 1 and the stator will generate eddy currents in the conductor, which will cause energy loss, reduce the efficiency of the motor, and generate heat. The presence of the arc-shaped slots 2 can cut off the flow path of the eddy current, reduce the generation of eddy currents, effectively reduce eddy current losses, improve the efficiency and reliability of the motor, and ensure the output performance of the motor. If it is necessary to enhance the magnetic field, the arc-shaped slots 2 can be used to cut off the flow path of the eddy current, reduce the generation of eddy currents, effectively reduce eddy current losses, improve the efficiency and reliability of the motor, and ensure the output performance of the motor. The depth of the slot 2 is slightly shallower or the number of arc slots 2 is increased to reduce the magnetic resistance and increase the magnetic field strength. Conversely, if the magnetic field strength needs to be reduced, the depth of the arc slot 2 can be increased or the number of arc slots 2 can be reduced. The depth and number of the arc slot 2 are determined according to the type of motor. No specific limitation is made here. The arc slot 2 can also help disperse the heat generated by eddy currents. The heat can be dissipated through the air flow in the arc slot 2 or other heat dissipation methods to avoid local overheating. The arc slot 2 can provide a certain gap to relieve thermal expansion stress and increase the service life of the motor. The wear-resistant layer 3 is set to enhance the wear resistance of the magnetic tile body 1, the waterproof layer 4 can improve the waterproof effect of the magnetic tile body 1, the corrosion-resistant layer 5 is used to enhance the corrosion resistance of the magnetic tile body 1, the high-temperature resistant layer 6 is used to enhance the high-temperature resistance of the magnetic tile body 1, the reinforcement layer 7 is used to strengthen the strength of the magnetic tile body 1, and the anti-corrosion layer 8 can enhance the corrosion resistance of the magnetic tile body 1.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A motor magnetic tile, comprising a magnetic tile body (1), characterized in that: The inner surface of the magnetic tile body (1) is provided with a plurality of arc-shaped grooves (2) arranged at equal angles. The magnetic tile body (1) comprises a wear-resistant layer (3), a waterproof layer (4), a corrosion-resistant layer (5), a high-temperature resistant layer (6), a reinforcement layer (7) and an anti-corrosion layer (8) which are arranged in sequence from top to bottom.

2. The motor magnetic shoe according to claim 1, characterized in that: The direction in which the arc-shaped groove (2) extends is consistent with the direction in which the length of the magnetic tile body (1) extends.

3. The motor magnetic shoe according to claim 1, characterized in that: The wear-resistant layer (3) is fixedly connected to the waterproof layer (4), the waterproof layer (4) is fixedly connected to the corrosion-resistant layer (5), the corrosion-resistant layer (5) is fixedly connected to the high-temperature resistant layer (6), the high-temperature resistant layer (6) is fixedly connected to the reinforcement layer (7), and the reinforcement layer (7) is fixedly connected to the anti-corrosion layer (8).

4. The motor magnetic shoe according to claim 1, characterized in that: The wear-resistant layer (3) is made of aluminum oxide, the waterproof layer (4) is made of polytetrafluoroethylene, the corrosion-resistant layer (5) is made of nickel-chromium alloy, the high-temperature resistant layer (6) is made of ceramic fiber, the reinforcement layer (7) is made of carbon fiber reinforced material, and the anti-corrosion layer (8) is a chrome-plated layer.

5. The motor magnetic shoe according to claim 1, characterized in that: The magnetic tile body (1) is in an arc-shaped convex shape.

6. The motor magnetic shoe according to claim 1, characterized in that: The left and right end faces of the magnetic tile body (1) are both perpendicular to the extension direction of the arc-shaped groove (2).

7. The motor magnetic shoe according to claim 1, characterized in that: The thickness of the magnetic tile body (1) is between 3 and 8 mm.

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