Stator slot type permanent magnet motor

Abstract

The utility model discloses a stator slot type permanent magnet motor, which comprises a stator, winding plates are fixedly connected in the stator in a circumferential array manner, a winding slot is arranged between two adjacent winding plates, a T-shaped notch is arranged between two adjacent winding plates, a fixing ring is arranged in the stator, and a permanent magnet is arranged in the stator. Supporting plates are fixedly connected to the inner wall of the fixing ring in a circumferential array mode, connecting columns are fixedly connected to the interiors of the supporting plates, T-shaped blocks are fixedly connected to the outer wall of the fixing ring in a circumferential array mode, and a clamping groove is formed between every two adjacent T-shaped blocks. According to the stator slot type permanent magnet motor disclosed by the utility model, due to the effects of the fixing ring and the T-shaped block, the copper wire can be limited at the outer side of the wire winding plate and cannot be separated, the copper wire is prevented from loosening, the motor is prevented from being damaged, the service life of the motor is prolonged, the structure is simple, and the practicability is relatively strong. And through the arrangement of the noise reduction grooves, friction can be reduced, so that noise is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of stator slot motors, in particular to a stator slot type permanent magnet motor. Background Art

[0002] With the emergence of high-performance permanent magnet materials, permanent magnet synchronous motors are rapidly developing. Among permanent magnet motors, axial-field permanent magnet motors, with their high power density, high torque density, high efficiency, and high integration, are finding widespread application in electric vehicles, wind power generation, ship drives, heart pumps, and other applications. Axial-field permanent magnet motors are generally categorized by the number of stators and rotors: single-stator, single-rotor, dual-stator, single-rotor, single-stator, dual-rotor, and multiple-stator, multiple-rotor.

[0003] After searching, a stator permanent magnet type axial magnetic field permanent magnet motor (authorization announcement number: CN 112688519B) "comprises a first permanent magnet stator, a first rotor, an armature stator, a second rotor and a second permanent magnet stator which are coaxially and sequentially arranged. The first permanent magnet stator and the second permanent magnet stator have the same structure and are symmetrically arranged; the first rotor and the second rotor have the same structure and are symmetrically arranged. The first permanent magnet stator and the second permanent magnet stator both include a permanent magnet stator bracket, on which a plurality of circumferentially evenly distributed permanent magnet stator cores are provided, and a high coercive force permanent magnet is provided between two adjacent permanent magnet stator cores; the armature stator includes an armature stator bracket, under which a plurality of circumferentially evenly distributed armature stator cores are provided, and an armature winding is wound on the armature stator core. Placing the permanent magnets and the armature winding on different stators increases the freedom of electromagnetic load design, solves the spatial conflict between the electromagnetic loads of the existing stator permanent magnet type axial magnetic field permanent magnet motor, and improves the torque density of the motor."

[0004] Based on the above-mentioned related technologies, the applicant believes that the existing stator permanent magnet motor lacks a protective mechanism for the winding. When the motor rotates rapidly, the winding may loosen due to long-term use, and thus detach from the winding slot, causing damage to the motor and reducing the service life of the motor. To address the above problems, we have introduced a stator slot-type permanent magnet motor. Utility Model Content

[0005] The utility model discloses a stator slot-type permanent magnet motor, which aims to solve the technical problem that the existing stator permanent magnet motor lacks a protective mechanism for the winding. When the motor rotates rapidly, the winding may become loose due to long-term use and thus detach from the winding slot, causing damage to the motor and shortening the service life of the motor.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A stator slot-type permanent magnet motor includes a stator, wherein winding plates are fixedly connected in a circumferential array inside the stator, a winding slot is provided between two adjacent winding plates, a T-shaped notch is provided between two adjacent winding plates, a fixing ring is provided inside the stator, a support plate is fixedly connected to the inner wall of the fixing ring in a circumferential array, a connecting column is fixedly connected to the inner wall of the support plate, a T-shaped block is fixedly connected to the outer wall of the fixing ring in a circumferential array, a clamping slot is provided between two adjacent T-shaped blocks, and the clamping slot and the winding plate are used in conjunction with each other.

[0008] In a preferred solution, resistance reducing grooves are equidistantly provided inside the support plate, and the resistance reducing grooves cooperate with the support plate.

[0009] In a preferred solution, a connecting hole is provided inside the connecting column, and the connecting hole cooperates with the external rotating column.

[0010] In a preferred solution, the outer wall of the stator is provided with noise reduction grooves in a circumferential array.

[0011] In a preferred solution, the size of the T-shaped block is consistent with the size of the T-shaped slot, and the T-shaped block and the T-shaped slot are used in conjunction with each other.

[0012] In a preferred solution, the inner radius of the stator is 45 mm, and the outer radius of the stator is 63 mm.

[0013] The stator slot type permanent magnet motor provided by the utility model has the following advantages:

[0014] The fixing ring and T-shaped block can restrain the copper wire outside the winding plate, preventing it from coming loose and damaging the motor, thus extending the motor's service life. The structure is simple and practical. The noise reduction grooves can reduce friction, further reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of a stator slot-type permanent magnet motor proposed by the present invention.

[0016] Figure 2 This is a front view schematic diagram of a stator slot type permanent magnet motor proposed by the present invention.

[0017] Figure 3 This is a schematic diagram of a stator slot-type permanent magnet motor proposed in the present invention.

[0018] Figure 4 This is a schematic diagram of a stator slot-type permanent magnet motor proposed in the present invention.

[0019] In the attached figure: 1. stator; 2. winding plate; 3. T-shaped notch; 4. fixing ring; 5. support plate; 6. connecting column; 7. winding groove; 8. clamping slot; 9. T-shaped block; 10. resistance reduction groove; 11. connecting hole; 12. noise reduction groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and marked in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work fall within the scope of protection of the present application.

[0021] Reference Figure 1 - Figure 4 A stator slot-type permanent magnet motor includes a stator 1, wherein winding plates 2 are fixedly connected in a circumferential array inside the stator 1, winding slots 7 are provided between two adjacent winding plates 2, and T-shaped slots 3 are provided between two adjacent winding plates 2. A fixing ring 4 is provided inside the stator 1, and a support plate 5 is fixedly connected to the inner wall of the fixing ring 4 in a circumferential array. A connecting column 6 is fixedly connected to the inner wall of the support plate 5, and a T-shaped block 9 is fixedly connected to the outer wall of the fixing ring 4 in a circumferential array. A clamping slot 8 is provided between two adjacent T-shaped blocks 9, and the clamping slot 8 and the winding plates 2 are used in conjunction with each other. Resistance reducing slots 10 are equidistantly provided inside the support plate 5, and the resistance reducing slots 10 and the support plate 5 are used in conjunction with each other.

[0022] In the above technical solution, considering that the existing stator permanent magnet motor lacks a protective mechanism for the winding, when the motor rotates rapidly, the winding may become loose due to long-term use, and thus detach from the winding slot, causing damage to the motor and reducing the service life of the motor. In order to solve this problem, the specific operations are as follows:

[0023] Reference Figure 1 - Figure 4In a preferred embodiment, in actual use, the staff inserts the fixing ring 4 into the interior of the stator 1, and the T-shaped block 9 into the interior of the T-shaped slot 3, fixes the stator 1 and the fixing ring 4, and then installs the stator 1 inside the permanent magnet motor. By fixing the motor housing, the fixing ring 4 is limited inside the stator 1, and then the staff starts the motor. When the motor is running, the stator 1 rotates rapidly inside the motor. During the rotation, due to the action of the fixing ring 4 and the T-shaped block 9, the copper wire can be limited to the outside of the winding plate 2 and will not fall off, thereby avoiding loosening of the copper wire and damage to the motor, thereby extending the service life of the motor. The structure is simple and the practicability is strong.

[0024] Reference Figure 1 - Figure 4 In a preferred embodiment, a connecting hole 11 is provided within the connecting column 6, which cooperates with the external rotating column. The outer wall of the stator 1 is provided with a circumferential array of noise reduction grooves 12. The dimensions of the T-shaped block 9 match those of the T-shaped slot 3, and the T-shaped block 9 and the T-shaped slot 3 cooperate with each other. The inner radius of the stator 1 is 45 mm, and the outer radius of the stator 1 is 63 mm. The provision of the noise reduction grooves 12 reduces friction, thereby further reducing noise.

[0025] Working principle: In actual use, the staff inserts the fixing ring 4 into the inside of the stator 1, and the T-shaped block 9 into the inside of the T-shaped slot 3, fixes the stator 1 and the fixing ring 4, and then installs the stator 1 inside the permanent magnet motor. Through the fixation of the motor casing, the fixing ring 4 is limited inside the stator 1, and then the staff starts the motor. When the motor is running, the stator 1 rotates rapidly inside the motor. During the rotation, due to the action of the fixing ring 4 and the T-shaped block 9, the copper wire can be limited to the outside of the winding plate 2 and will not fall off. The resistance reduction groove 10 is set to reduce the wind resistance of the support plate 5. Noise will be generated when the motor is running. The noise reduction groove 12 is set to reduce friction, thereby further reducing noise.

[0026] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A stator slot type permanent magnet motor, comprising a stator (1), characterized in that: The stator (1) is internally fixedly connected to winding plates (2) in a circumferential array, a winding groove (7) is provided between two adjacent winding plates (2), and a T-shaped notch (3) is provided between two adjacent winding plates (2). A fixing ring (4) is provided inside the stator (1), the inner wall of the fixing ring (4) is fixedly connected to a support plate (5) in a circumferential array, the interior of the support plate (5) is fixedly connected to a connecting column (6), the outer wall of the fixing ring (4) is fixedly connected to a T-shaped block (9) in a circumferential array, a clamping groove (8) is provided between two adjacent T-shaped blocks (9), and the clamping groove (8) and the winding plates (2) are used in conjunction with each other.

2. A stator slot type permanent magnet motor according to claim 1, characterized in that: Resistance reducing grooves (10) are equidistantly provided inside the support plate (5), and the resistance reducing grooves (10) and the support plate (5) are used in conjunction with each other.

3. The stator slot type permanent magnet motor according to claim 1, characterized in that: A connecting hole (11) is provided inside the connecting column (6), and the connecting hole (11) cooperates with the external rotating column for use.

4. The stator slot type permanent magnet motor according to claim 1, characterized in that: The outer wall of the stator (1) is provided with noise reduction grooves (12) in a circumferential array.

5. The stator slot type permanent magnet motor according to claim 1, characterized in that: The size of the T-shaped block (9) is consistent with the size of the T-shaped slot (3), and the T-shaped block (9) and the T-shaped slot (3) are used in conjunction with each other.

6. The stator slot type permanent magnet motor according to claim 1, characterized in that: The inner radius of the stator (1) is 45 mm, and the outer radius of the stator (1) is 63 mm.

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