Spliced stator core structure of permanent magnet synchronous motor

Abstract

The utility model relates to the technical field of motor stator cores, and particularly discloses a spliced stator core structure of a permanent magnet synchronous motor, which comprises a rotor, a top fixing seat fixedly connected to the top of the outer side of the rotor, and an iron core fixing cylinder arranged at the bottom of the top fixing seat. A third groove, a second groove and a first groove are formed in the inner side of a top fixing seat and the inner side of a bottom fixing seat, a stator iron core unit is inserted into the bottom fixing seat at the bottom in a penetrating mode, a fixing column is inserted into an internal fixing groove of the stator iron core unit in a penetrating mode, the stator iron core unit is fixed, and then the top fixing seat covers the top of the stator iron core unit. At the moment, the clamping plate at the side edge of the fixed seat penetrates through the interior of the mounting seat, the movable plate is pushed, the movable plate is pressed downwards, and when the first fixing hole in the side part of the clamping plate is flush with the opening in the side part of the mounting seat, the fixed plate is inserted into the clamping plate for fixing, so that the stability of the stator core unit is ensured, and the stability of a magnetic circuit of the motor is further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator cores, in particular to a block stator core structure of a permanent magnet synchronous motor. Background Art

[0002] The stator core is an important component of the magnetic circuit of a permanent magnet synchronous motor. Together with the rotor core and the air gap between the stator and the rotor, it forms a complete magnetic circuit of the motor. In an asynchronous motor, the magnetic flux in the stator core is alternating. The existing block stator core units are connected in a block-type manner, but this method is prone to unstable fixing, resulting in discontinuity of the magnetic circuit, causing changes in the magnetic field and abnormal operation of the motor. For this reason, we propose a block stator core structure for a permanent magnet synchronous motor. Utility Model Content

[0003] The utility model aims to provide a block stator core structure of a permanent magnet synchronous motor to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a block stator core structure of a permanent magnet synchronous motor, comprising a core fixing cylinder, the outer side of the core fixing cylinder is fixedly connected to the inner wall of the motor housing, the top of the core fixing cylinder is fixedly connected to a top fixing seat, and buckle components are arranged on both sides of the connection between the top fixing seat and the core fixing cylinder;

[0005] The buckle assembly includes a card plate and a fixed plate. The bottom of the card plate is inserted into the mounting seat. The inner wall of the mounting seat is slidably connected with a movable plate. The bottom of the movable plate is fixedly connected with a number of springs. First fixing holes are opened on both sides of the card plate, and the fixing plate is inserted into the first fixing hole through the mounting seat.

[0006] The inner side of the top fixing seat is provided with a plurality of third grooves and first grooves which are distributed in a staggered manner, and a stator core unit is arranged between each adjacent third groove and first groove.

[0007] Wherein, two fixing grooves are arranged inside each stator core unit, and a plurality of fixing teeth are fixedly connected to the outer side of the stator core unit.

[0008] Among them, a plurality of circumferentially distributed fixing columns and second grooves are arranged inside the top fixing seat, the fixing columns and the second grooves are staggeredly distributed, the fixing columns are connected to the fixing grooves, and the second grooves are connected to the fixing teeth.

[0009] Wherein, the bottom of the core fixing tube is fixedly connected with a bottom fixing seat, and the bottom fixing seat has the same structure as the top fixing seat.

[0010] Wherein, through grooves are provided in the middle of the top fixing seat and the bottom fixing seat.

[0011] The core fixing cylinder, the bottom fixing seat and the top fixing seat are provided with rotation grooves for the rotor to rotate.

[0012] The utility model has at least the following beneficial effects:

[0013] First, a third groove, a second groove and a first groove are opened on the inner sides of the top fixing seat and the bottom fixing seat, and the stator core unit is inserted into the bottom fixing seat at the bottom. In addition, the fixing column is inserted into the internal fixing groove of the stator core unit to fix the stator core unit. Then, the top fixing seat is covered on the top of the stator core unit. At this time, the clamping plate on the side of the top fixing seat passes through the inside of the mounting seat, pushes the movable plate, and presses the movable plate downward. When the first fixing hole on the side of the clamping plate is flush with the side opening of the mounting seat, the fixing plate is inserted into the inside of the clamping plate to fix it, thereby ensuring the stability of the stator core unit and thus ensuring the stability of the magnetic circuit of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 This is a cross-sectional view of the buckle assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the internal structure of the fixing seat of the utility model;

[0018] Figure 5 For this utility model Figure 4 Enlarged view of point A in the middle.

[0019] In the figure: 1, through slot; 2, top fixing seat; 3, core fixing tube; 4, bottom fixing seat; 5, buckle assembly; 501, clamping plate; 502, mounting seat; 503, movable plate; 504, spring; 505, fixing plate; 506, first fixing hole; 507, stator core unit; 508, first groove; 509, fixing column; 510, second groove; 511, third groove; 512, fixing groove; 513, fixing tooth. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 5 :

[0022] Embodiment 1

[0023] The utility model provides a technical solution: a block stator core structure of a permanent magnet synchronous motor, comprising a core fixing cylinder 3, the outer side of the core fixing cylinder 3 is fixedly connected to the inner wall of the motor housing, the top of the core fixing cylinder 3 is fixedly connected to a top fixing seat 2, and buckle assemblies 5 are arranged on both sides of the junction of the top fixing seat 2 and the core fixing cylinder 3, and the core fixing cylinder 3 is used to protect the stator core unit 507 to ensure the normal operation of the stator core unit 507;

[0024] The buckle assembly 5 includes a card plate 501 and a fixed plate 505. The bottom of the card plate 501 is inserted into the mounting seat 502. The inner wall of the mounting seat 502 is slidably connected with a movable plate 503. The bottom of the movable plate 503 is fixedly connected with a plurality of springs 504. First fixing holes 506 are provided on both sides of the card plate 501. The fixed plate 505 is inserted into the first fixing holes 506 through the mounting seat 502. When the stator core unit 507 is installed in the bottom fixing seat 4, the top fixing seat 2 is covered. At this time, the card plate 501 presses down the movable plate 503. When the first fixing hole 506 on the side of the card plate 501 is flush with the side opening of the mounting seat 502, the fixed plate 505 is inserted and fixed. At the same time, the spring 504 at the bottom of the movable plate 503 is pressed upward by its own elasticity to push the movable plate 503, further ensuring the stability of the top fixing seat 2.

[0025] A plurality of third grooves 511 and first grooves 508 are arranged on the inner side of the top fixing seat 2 in a staggered manner, and a stator core unit 507 is arranged between each adjacent third groove 511 and first groove 508 .

[0026] Two fixing slots 512 are formed inside each stator core unit 507 , and a plurality of fixing teeth 513 are fixedly connected to the outer side of the stator core unit 507 . The fixing slots 512 and the fixing teeth 513 facilitate the installation of the stator core unit 507 .

[0027] A plurality of circumferentially distributed fixing columns 509 and second grooves 510 are provided inside the top fixing seat 2. The fixing columns 509 and the second grooves 510 are staggeredly distributed. The fixing columns 509 are connected to the fixing grooves 512, and the second grooves 510 are connected to the fixing teeth 513, which further ensures the stability of the stator core unit 507.

[0028] Embodiment 2

[0029] The bottom of the core fixing tube 3 is fixedly connected to a bottom fixing seat 4 , which has the same structure as the top fixing seat 2 and can fix the upper and lower ends of the stator core unit 507 at the same time.

[0030] A through slot 1 is provided in the middle of the top fixing seat 2 and the bottom fixing seat 4, and the through slot 1 is used for winding the wire group.

[0031] The core fixing cylinder 3, the bottom fixing seat 4 and the top fixing seat 2 are provided with rotation slots for the rotor to rotate. The magnetic field generated by the rotor operation and the magnetic field of the stator core unit 507 inside the core fixing cylinder 3 generate torque, forming a stable magnetic circuit to ensure the stable operation of the motor.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The block stator core structure of the permanent magnet synchronous motor includes: The iron core fixing cylinder (3) is characterized in that: the outer side of the iron core fixing cylinder (3) is fixedly connected to the inner wall of the motor housing, the top of the iron core fixing cylinder (3) is fixedly connected to a top fixing seat (2), and buckle components (5) are arranged on both sides of the connection between the top fixing seat (2) and the iron core fixing cylinder (3); The buckle assembly (5) comprises a clamping plate (501) and a fixed plate (505), the bottom of the clamping plate (501) is inserted into the interior of the mounting seat (502), the inner wall of the mounting seat (502) is slidably connected with a movable plate (503), the bottom of the movable plate (503) is fixedly connected with a plurality of springs (504), both sides of the clamping plate (501) are provided with first fixing holes (506), and the fixed plate (505) is inserted into the interior of the first fixing hole (506) through the mounting seat (502).

2. The stator core structure of the permanent magnet synchronous motor according to claim 1, characterized in that: A plurality of third grooves (511) and first grooves (508) arranged in a staggered manner are provided on the inner side of the top fixing seat (2), and a stator core unit (507) is provided between each adjacent third groove (511) and first groove (508).

3. The block stator core structure of the permanent magnet synchronous motor according to claim 2, characterized in that: Two fixing grooves (512) are provided inside each stator core unit (507), and a plurality of fixing teeth (513) are fixedly connected to the outer side of the stator core unit (507).

4. The block stator core structure of the permanent magnet synchronous motor according to claim 1, characterized in that: A plurality of circumferentially distributed fixing columns (509) and second grooves (510) are provided inside the top fixing seat (2); the fixing columns (509) and the second grooves (510) are distributed in a staggered manner; the fixing columns (509) are connected to the fixing grooves (512); and the second grooves (510) are connected to the fixing teeth (513).

5. The block stator core structure of the permanent magnet synchronous motor according to claim 1, characterized in that: The bottom of the iron core fixing cylinder (3) is fixedly connected to a bottom fixing seat (4), and the bottom fixing seat (4) has the same structure as the top fixing seat (2).

6. The block stator core structure of the permanent magnet synchronous motor according to claim 1, characterized in that: A through groove (1) is provided in the middle of each of the top fixing seat (2) and the bottom fixing seat (4).

7. The block stator core structure of the permanent magnet synchronous motor according to claim 1, characterized in that: Rotation grooves for the rotation of the rotor are provided inside the iron core fixing cylinder (3), the bottom fixing seat (4) and the top fixing seat (2).

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