Square magnet yoke motor stator and motor
By using a motor stator design with square magnetic yoke laminations and staggered permanent magnets, the problems of low magnetic field utilization and complex structure of traditional motors are solved, achieving efficient energy conversion and stable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional motors suffer from low magnetic field utilization, high energy loss, low power density, complex structure, and high manufacturing difficulty, leading to vibration and noise problems.
The motor stator is constructed by splicing multiple square magnetic yoke laminations. The first and second magnetic pole teeth are arranged alternately to form an N-S alternating magnetic field. Combined with permanent magnets and annular air gap design, the power density and energy efficiency are improved.
It improves the power density and energy efficiency of the motor, simplifies the structural design, reduces manufacturing difficulty and cost, and reduces vibration and noise.
Smart Images
Figure CN224053955U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor technical field, specifically, relate to a square magnetic yoke motor stator and motor. BACKGROUND
[0002] Motor stator is the important component of motor, mainly by the core, stator winding and base are formed, and the stator generates rotating magnetic field, and the rotor interacts, realizes energy conversion. Stator winding forms magnetic field after electrification, drives the rotor rotation, thereby output mechanical energy. According to the motor type difference, stator structure and material also have some differences, are widely used in industry, electric power, transportation and other fields, and it is the key component of motor stable operation.
[0003] Traditional motor has certain limitation in magnetic field distribution, energy conversion efficiency and structure design etc. For example, the magnetic field utilization rate of some motors is not high, resulting in large energy loss, and the power density is low. At the same time, the complex structure design increases the difficulty and cost of manufacturing process, and in the running process, it can produce larger vibration and noise, influence the stability and service life of motor. UTILITY MODEL CONTENT
[0004] The utility model aims at at least one of the technical problems existing in the prior art.
[0005] Therefore, one purpose of the utility model is to provide a square magnetic yoke motor stator and motor, the square magnetic yoke motor stator is formed by splicing a plurality of square magnetic yoke punching sheets, a plurality of magnetic yoke punching sheets are arranged by intermeshing and interlacing through first magnetic pole teeth and second magnetic pole teeth, form the square magnetic field of N-S alternation, improve power density and energy efficiency, and the structure is simple and easy to replace.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a square magnetic yoke motor stator, comprising a plurality of magnetic yoke punching sheets, one side of the magnetic yoke punching sheet is provided with first magnetic pole teeth, the other side of the magnetic yoke punching sheet is provided with second magnetic pole teeth, the bottom of the magnetic yoke punching sheet is symmetrically provided with two third magnetic pole teeth, the first magnetic pole teeth are convex, the second magnetic pole teeth are concave, and the first magnetic pole teeth of two adjacent magnetic yoke punching sheets are intermeshed and spliced with the second magnetic pole teeth.
[0007] Preferably, the first magnetic pole teeth and the second magnetic pole teeth are permanent magnets.
[0008] Preferably, a winding port is formed between every two adjacent magnetic yoke punching sheets.
[0009] Preferably, the outer wall of the magnetic yoke punching sheet is provided with an arc-shaped groove.
[0010] In another aspect, the utility model provides a kind of motor, the motor includes the motor stator of any above-mentioned technical solutions and the rotor installed in the motor stator, annular air gap is equipped between the magnetic yoke punching sheet and the rotor.
[0011] Compared with prior art, the utility model has the beneficial effects that: the motor stator of the utility model is formed by splicing multiple square magnetic yoke punching sheets, each sheet is provided with permanent magnet of first magnetic tooth and second magnetic tooth at two side corners, first magnetic tooth and second magnetic tooth are engaged and staggered, form square magnetic field of N-S alternation, improve power density and energy efficiency, and the structure is simple and easy to replace. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is structural schematic diagram of square magnetic yoke motor stator and motor according to the utility model embodiment;
[0013] Figure 2 It is structural schematic diagram when multiple magnetic yoke punching sheets are spliced in square magnetic yoke motor stator and motor according to the utility model embodiment;
[0014] Figure 3 It is structural schematic diagram of single magnetic yoke punching sheet in square magnetic yoke motor stator and motor according to the utility model embodiment.
[0015] In the drawing: 1, rotor;2, magnetic yoke punching sheet;3, annular air gap;4, first magnetic tooth;5, second magnetic tooth;6, third magnetic tooth;7, winding port;8, arc slot. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments only are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0017] Please refer to Figure 1 The embodiment of the utility model provides a kind of square magnetic yoke motor stator and motor, comprising: multiple magnetic yoke punching sheets 2.
[0018] In the embodiment, as Figures 1-3, one side of the magnetic yoke punching sheet 2 is provided with a first magnetic pole tooth 4, the other side of the magnetic yoke punching sheet 2 is provided with a second magnetic pole tooth 5, the bottom of the magnetic yoke punching sheet 2 is symmetrically provided with two third magnetic pole teeth 6, the first magnetic pole tooth 4 is convex, the second magnetic pole tooth 5 is concave, the two adjacent magnetic yoke punching sheets 2 are spliced by the convex first magnetic pole tooth 4 and the concave second magnetic pole tooth 5, the motor stator is spliced by a plurality of square magnetic yoke punching sheets 2, the corner of each magnetic yoke punching sheet 2 is provided with a square magnetic field of the magnetic pole tooth protruding outward, the first magnetic pole tooth 4 and the second magnetic pole tooth 5 of the adjacent magnetic yoke punching sheet 2 are arranged alternately to form a unique square magnetic field distribution.
[0019] Further, referring to Figure 2 , the winding port 7 is formed between every two adjacent magnetic yoke punching sheets 2, the winding port 7 is formed between every two adjacent magnetic yoke punching sheets 2, which facilitates the winding wire to enter and facilitates the winding operation.
[0020] Wherein, the first magnetic pole tooth 4 and the second magnetic pole tooth 5 are permanent magnets, the first magnetic pole tooth 4 and the second magnetic pole tooth 5 are permanent magnets, the polarity of the first magnetic pole tooth 4 and the second magnetic pole tooth 5 permanent magnet is arranged according to the circumference and is distributed in the N-S-N-S rule, so that the adjacent magnetic pole teeth form alternating N and S poles.
[0021] As Figure 3 shown, the outer wall of the magnetic yoke punching sheet 2 is provided with an arc-shaped groove 8, when a plurality of magnetic yoke punching sheets 2 are stacked, the arc-shaped grooves 8 on the plurality of magnetic yoke punching sheets 2 can form a linear groove from top to bottom, which facilitates the air to pass through the linear groove composed of the arc-shaped grooves 8, thereby enhancing the ventilation and heat dissipation effect of the stator core.
[0022] In this embodiment, a motor is also provided, which comprises a rotor 1 and a plurality of spliced magnetic yoke punching sheets 2, and the magnetic yoke punching sheet 2 forms a motor stator after being stacked, and the magnetic yoke punching sheet 2 and the rotor 1 are provided with an annular air gap 3, which can reduce the magnetic field leakage and improve the heat dissipation effect.
[0023] According to the above technical scheme, the working steps of the present scheme are summarized and combed: the motor stator of the present embodiment is spliced by a plurality of square magnetic yoke punching sheets 2, the corner of each magnetic yoke punching sheet 2 is provided with a square magnetic field of the magnetic pole tooth protruding outward, the first magnetic pole tooth 4 and the second magnetic pole tooth 5 of the adjacent magnetic yoke punching sheet 2 are arranged alternately to form a unique square magnetic field distribution.
[0024] The first magnetic pole tooth 4 and the second magnetic pole tooth 5 are permanent magnets, and the polarities of the first magnetic pole tooth 4 and the second magnetic pole tooth 5 permanent magnets are arranged in a circle and distributed in an N-S-N-S rule, so that the adjacent magnetic pole teeth form alternating N poles and S poles, thereby enhancing the power density and energy conversion efficiency of the motor, and meanwhile, a plurality of simple magnetic yoke punching sheets 2 are spliced, compared with a traditional complex structure, can be replaced individually and the manufacturing process is simpler, thereby reducing the production cost.
[0025] The parts not involved in the utility model are the same as the prior art or can be realized by using the prior art. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A square yoke motor stator comprising a plurality of yoke lamination sheets (2), characterized in that: one side of the yoke lamination sheet (2) is provided with a first magnetic pole tooth (4), the other side of the yoke lamination sheet (2) is provided with a second magnetic pole tooth (5), and the bottom of the yoke lamination sheet (2) is symmetrically provided with two third magnetic pole teeth (6), the first magnetic pole tooth (4) is convex, the second magnetic pole tooth (5) is concave, and two adjacent yoke lamination sheets (2) are spliced by the convex first magnetic pole tooth (4) and the concave second magnetic pole tooth (5).
2. A square yoke motor stator according to claim 1, characterized in that: The first magnetic pole tooth (4) and the second magnetic pole tooth (5) are both permanent magnets.
3. A square yoke motor stator according to claim 1, characterized in that: A winding port (7) is formed between every two adjacent yoke lamination sheets (2).
4. A square yoke motor stator according to claim 1, characterized in that: An arc-shaped groove (8) is arranged on the outer wall of the yoke lamination sheet (2).
5. An electric machine characterized by A rotor (1) is arranged in the motor stator as claimed in any one of claims 1 to 4, and an annular air gap (3) is arranged between the yoke lamination sheet (2) and the rotor.