Magnetic steel for motor
By designing the motor magnet with a tile structure, the existing magnet steel has solved the problems of large volume, high cost and noise, and the effects of volume reduction, cost reduction and noise reduction are achieved, and the development of the motor is promoted.
Patent Information
- Application Number
- CN202421597730.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The existing motor magnets have large volume, high manufacturing costs, and their shape has a great impact on noise, which limits the production of magnets and the development of motors.
A tile-shaped magnetic steel is designed, which includes a first tile surface, a second tile surface, a first edge, a second edge, a first side end and a second side end. By providing a first cut surface and a second cut surface, the volume is reduced and noise is reduced.
By removing sharp corner structures, the volume of magnetic steel is reduced, the amount of material is saved, the cost is reduced, and the noise is reduced through the cutting surface setting is improved, thereby improving the electromagnetic performance and production efficiency of the motor.
Smart Images
Figure CN222785808U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a magnetic steel used for motors. Background Art
[0002] Motors are widely used in brushless motors, servo motors, stepper motors and other fields due to their high power density and high efficiency. Magnets are an indispensable part of motors. Whether it is to provide stable rotational power or to achieve precise control, magnets build the power foundation of motors. However, with the further expansion of motor power, the corresponding magnets are getting larger and larger, and the manufacturing cost is getting higher and higher. In addition, motors will generate vibration and noise when working, and the shape of magnets has a greater impact on motor noise, which limits the production of magnets and affects the development of motors. Utility Model Content
[0003] The utility model aims to provide a magnetic steel for a motor.
[0004] To achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a magnetic steel for a motor, comprising a tile-shaped body, the body comprising a first tile surface, a second tile surface, a first edge, a second edge, a first side end and a second side end; the first tile surface and the second tile surface are both curved and arranged oppositely, the first edge and the second edge are arranged oppositely, and the first side end and the second side end are arranged oppositely; the first side end comprises a first cut surface intersecting with the first tile surface and a first cut surface intersecting with the second tile surface, and the first cut surface and the first cut surface are arranged to intersect; the second side end comprises a second cut surface intersecting with the first tile surface and a second cut surface intersecting with the second tile surface, and the second cut surface and the second cut surface are arranged to intersect.
[0005] As a further improved technical solution of the utility model, the first tile surface and the second tile surface have the same curvature.
[0006] As a further improved technical solution of the present invention, the first side end and the second side end are symmetrically arranged and define a symmetry plane.
[0007] As a further improved technical solution of the present invention, the first section is parallel to the symmetry plane.
[0008] As a further improved technical solution of the utility model, the intersection angle range of the first cutting surface and the first chamfered surface is 120 degrees to 150 degrees.
[0009] As a further improved technical solution of the present utility model, the area of the first cut surface is less than or equal to the area of the first chamfered surface.
[0010] As a further improved technical solution of the utility model, the width of the first section is in the range of 0.5-0.6 times the thickness of the body.
[0011] As a further improved technical solution of the present invention, the area of the first tile surface is greater than the area of the second tile surface.
[0012] As a further improved technical solution of the utility model, the first cutting plane is a vertical plane, and the first cutting surface is an inclined plane.
[0013] The beneficial effects of the utility model are as follows: the sharp corner structure of the original magnetic steel is removed, and the magnetic steel of the utility model is reduced in volume by setting the first cut surface and the second cut surface to save material usage, thereby reducing costs, and the electromagnetic performance of the motor is not affected by the setting of the first cut surface and the second cut surface, and the first cut surface and the second cut surface can reduce noise, thereby facilitating the production of magnetic steel and the development of motors. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of existing magnetic steel;
[0015] Figure 2 yes Figure 1 Processing distribution diagram of magnetic steel in raw materials;
[0016] Figure 3 This is a schematic diagram of the structure of a magnetic steel used for a motor in the utility model;
[0017] Figure 4 yes Figure 3 Processing distribution diagram of magnetic steel in raw materials. DETAILED DESCRIPTION
[0018] The present invention will be described in detail below in conjunction with the various embodiments shown in the accompanying drawings. Please refer to the drawings for preferred embodiments of the present invention. However, it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformation or replacement of functions, methods, or structures made by ordinary technicians in the field according to these embodiments shall fall within the protection scope of the present invention.
[0019] The utility model discloses a magnetic steel for a motor, which includes a tile-shaped body. The body includes a first tile surface, a second tile surface, a first edge, a second edge, a first side end, and a second side end. The first tile surface and the second tile surface are both curved and arranged oppositely, the first edge and the second edge are arranged oppositely, and the first side end and the second side end are arranged oppositely. The first side end includes a first cut surface intersecting with the first tile surface and a first cut surface intersecting with the second tile surface, and the first cut surface and the first cut surface are arranged to intersect; the second side end includes a second cut surface intersecting with the first tile surface and a second cut surface intersecting with the second tile surface, and the second cut surface and the second cut surface are arranged to intersect. The sharp-angle structure of the original magnetic steel is removed. The magnetic steel of the utility model reduces the volume through the arrangement of the first cut surface and the second cut surface to save material consumption, thereby reducing costs, and the arrangement of the first cut surface and the second cut surface does not affect the electromagnetic performance of the motor. The first cut surface and the second cut surface can reduce noise, thereby facilitating the production of magnetic steel and the development of motors.
[0020] Furthermore, the first tile surface and the second tile surface have the same curvature, which can reduce the number of processing steps and save processing costs and material costs.
[0021] Furthermore, the first side end and the second side end are symmetrically arranged and define a symmetry plane. The first cut surface and the second cut surface are both parallel to the symmetry plane.
[0022] Further, the first cut surface and the first bevel facet intersect at an angle ranging from 120 degrees to 150 degrees. For example, the first cut surface and the first bevel facet intersect at an angle ranging from 120 degrees, 130 degrees, 145 degrees, etc. Symmetrically, the second cut surface and the second bevel facet intersect at an angle ranging from 120 degrees to 150 degrees. The second cut surface and the second bevel facet intersect at an angle ranging from 120 degrees, 130 degrees, 145 degrees, etc.
[0023] Furthermore, the area of the first cut surface is less than or equal to the area of the first cut surface; symmetrically, the area of the second cut surface is less than or equal to the area of the second cut surface, thereby saving materials and reducing noise.
[0024] Furthermore, the width of the first cut surface is in the range of 0.5-0.6 times the thickness of the body; symmetrically, the width of the second cut surface is in the range of 0.5-0.6 times the thickness of the body, which saves materials, ensures the areas of the first cut surface and the second cut surface, and reduces noise.
[0025] Further, the area of the first tile surface is greater than the area of the second tile surface. The area of the first edge is equal to the area of the second edge. The first cut surface is a vertical plane, and the first cut surface is an inclined plane. The second cut surface is a vertical plane, and the second cut surface is an inclined plane. The first edge is a vertical plane, and the second edge is a vertical plane.
[0026] Please refer to the following Figures 1 to 4 , the magnetic steel 100 for the motor of the present invention is described by way of comparison.
[0027] Please refer to Figure 1 and Figure 2 An existing magnetic steel 9 includes a first tile surface 91 and a second tile surface 92 which are arranged oppositely and a first tip 93 and a second tip 94 which are arranged oppositely.
[0028] Please refer to Figure 3 and Figure 4 Please refer to the utility model disclosed in this invention, which discloses a magnetic steel 100 for a motor, which includes a tile-shaped body 1. The body 1 includes a first tile surface 11, a second tile surface 12, a first edge 13, a second edge (not shown), a first side end 15 and a second side end 16. The first tile surface 11 and the second tile surface 12 are both curved and arranged opposite to each other. The first edge 13 and the second edge are arranged opposite to each other. The first side end 15 and the second side end 16 are arranged opposite to each other. The first side end 15 includes a first cut surface 151 intersecting with the first tile surface 11 and a first cut surface 152 intersecting with the second tile surface 12, and the first cut surface 151 and the first cut surface 152 are arranged to intersect. The second side end 16 includes a second cut surface 161 intersecting with the first tile surface 11 and a second cut surface 162 intersecting with the second tile surface 12, and the second cut surface 161 and the second cut surface 162 are arranged to intersect.
[0029] In contrast, the first tip 93 and the second tip 94 of the original magnetic steel 9 are removed. The magnetic steel 100 of the utility model reduces the area and volume by setting the first cut surface 151 and the second cut surface 161 to save material usage, thereby reducing costs. Moreover, the electromagnetic performance of the motor is not affected by the setting of the first cut surface 152 and the second cut surface 162. The first cut surface 152 and the second cut surface 162 can reduce noise, which is beneficial to the production of the magnetic steel 100 and the development of motors.
[0030] Furthermore, the first tile surface 11 and the second tile surface 12 have the same curvature, which can reduce the processing steps and save processing costs and material costs. The thickness of the middle part of the body 1 is evenly set, and the structure is more stable.
[0031] In a specific embodiment, see Figure 2 and Figure 4When using raw materials for processing, take the simultaneous processing of 5 magnets as an example. When processing the existing magnet 9, the required area of raw material S1 is 106.6*60.11=6407.726 square millimeters; when processing the magnet 100 of the utility model, the required area of raw material S2 is 97*56.54=5484.38 square millimeters. If other dimensions remain unchanged, 14.4% of the material can be saved. Therefore, the magnet 100 of the utility model is provided with a first cut surface 151 and a second cut surface 161, and a first cut surface 152 and a second cut surface 162, which can save materials and reduce noise; and the first tile surface 11 and the second tile surface 12 have the same curvature, which reduces the processing steps and saves materials.
[0032] Furthermore, the first side end 15 and the second side end 16 are symmetrically arranged and define a symmetry plane, and the first cut surface 151 and the second cut surface 152 are parallel to the symmetry plane. In this embodiment, the intersection angle α of the first cut surface 151 and the first cut surface 152 is 130 degrees, and symmetrically, the intersection angle β of the second cut surface 161 and the second cut surface 162 is 130 degrees.
[0033] In this embodiment, the area of the first cut surface 151 is smaller than the area of the first cut surface 152; the area of the second cut surface 161 is smaller than the area of the second cut surface 162. The width of the first cut surface 151 is 0.55 times the thickness of the body 1, and the width of the second cut surface 161 is 0.55 times the thickness of the body 1.
[0034] Further, the area of the first tile surface 11 is greater than the area of the second tile surface 12. The area of the first edge 13 is equal to the area of the second edge. The first cut surface 151 is a vertical plane, and the first cut surface 152 is an inclined plane. The second cut surface 162 is a vertical plane, and the second cut surface is an inclined plane. The first edge 13 is a vertical plane, and the second edge is a vertical plane.
[0035] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
[0036] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A magnetic steel for a motor, comprising a tile-shaped body, characterized in that: The main body includes a first tile surface, a second tile surface, a first edge, a second edge, a first side end and a second side end; the first tile surface and the second tile surface are both curved and arranged opposite to each other, the first edge and the second edge are arranged opposite to each other, and the first side end and the second side end are arranged opposite to each other; the first side end includes a first cut surface intersecting with the first tile surface and a first cut surface intersecting with the second tile surface, and the first cut surface and the first cut surface are arranged to intersect; the second side end includes a second cut surface intersecting with the first tile surface and a second cut surface intersecting with the second tile surface, and the second cut surface and the second cut surface are arranged to intersect.
2. The magnetic steel for a motor according to claim 1, characterized in that: The first tile surface and the second tile surface have the same curvature.
3. The magnetic steel for a motor according to claim 2, characterized in that: The first side end and the second side end are symmetrically arranged and define a symmetry plane.
4. The magnetic steel for a motor according to claim 3, characterized in that: The first section plane is parallel to the symmetry plane.
5. The magnetic steel for a motor according to claim 3, characterized in that: The intersection angle of the first cutting surface and the first chamfered surface is in the range of 120 degrees to 150 degrees.
6. The magnetic steel for a motor according to claim 3, characterized in that: The area of the first cut surface is less than or equal to the area of the first chamfered surface.
7. The magnetic steel for a motor according to claim 3, characterized in that: The width of the first section is in the range of 0.5-0.6 times the thickness of the body.
8. The magnetic steel for a motor according to claim 2, characterized in that: The area of the first tile surface is greater than the area of the second tile surface.
9. The magnetic steel for a motor according to claim 2, characterized in that: The first cutting plane is a vertical plane, and the first cutting surface is an inclined plane.