Split block type stator tooth for permanent magnet synchronous motor

Abstract

The utility model relates to the technical field of permanent magnet synchronous motors, and discloses a split block type stator tooth for a permanent magnet synchronous motor, which comprises a box body, the inner wall of the bottom end of the box body is provided with a movable groove, the inner wall of the bottom end of the box body is fixedly connected with a plurality of springs, and the other ends of the plurality of springs are fixedly connected with a circular ring block. A plurality of fixing blocks are fixedly connected to the inner wall of the bottom end of the box body, first annular grooves are formed in the exteriors of the fixing blocks, first clamping grooves are formed in the exteriors of the fixing blocks, a vertical groove is formed in the inner wall of the side edge of the box body, and two second annular grooves are formed in the inner wall of the side edge of the box body. A plurality of second clamping grooves are formed in the inner wall of the side edge of the box body, and first clamping blocks are detachably connected to the outer portions of the multiple fixing blocks. According to the utility model, the iron core can be quickly and independently replaced by pressing and rotating the iron core, so that the maintenance time of the permanent magnet synchronous motor is shortened, and the maintenance cost of the spliced block type stator tooth for the permanent magnet synchronous motor is reduced.

Description

Technical Field

[0001] This utility model relates to the field of permanent magnet synchronous motor technology, and in particular to a modular stator tooth for a permanent magnet synchronous motor. Background Technology

[0002] The modular stator tooth for permanent magnet synchronous motors is a stator tooth structure consisting of a modular stator tooth core, two insulating end plates, and a set of stator tooth windings. The two insulating end plates are respectively set at both ends of the stator tooth core and clamped tightly. The stator tooth windings are wound around the stator tooth core after the insulating end plates are set. Compared with the traditional structure, this structure has the advantages of simple structure, reliable performance, and high cost performance. The insulating end plates replace the glass cloth plates, which can effectively avoid problems such as poor pressure resistance.

[0003] The working principle of the modular stator teeth in a permanent magnet synchronous motor is as follows: When three-phase alternating current is applied to the stator winding, a rotating magnetic field is generated. Due to its special structure, the modular stator teeth can better guide and constrain the magnetic field, making the magnetic field distribution more uniform and reasonable. The windings on the stator teeth generate induced electromotive force and current under the action of the magnetic field, which interact with the magnetic field generated by the permanent magnet, thereby driving the rotor to rotate and realizing the efficient conversion of electrical energy into mechanical energy.

[0004] In existing technologies, the modular stator teeth of some permanent magnet synchronous motors are difficult to disassemble and assemble, which leads to a lot of time being spent on maintenance, increasing maintenance costs and equipment downtime, and affecting production efficiency. During the assembly process, the complicated disassembly and assembly may damage components and affect motor performance. Moreover, the complicated disassembly and assembly is not conducive to technicians to optimize and improve the internal structure, thus hindering the updating and development of motor technology. Therefore, a modular stator tooth for permanent magnet synchronous motors is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modular stator tooth for a permanent magnet synchronous motor, aiming to improve the problem of cumbersome disassembly and assembly of modular stator teeth in some existing permanent magnet synchronous motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modular stator gear for a permanent magnet synchronous motor, comprising a housing, a movable groove formed on the inner wall of the bottom end of the housing, multiple springs fixedly connected to the inner wall of the bottom end of the housing, annular blocks fixedly connected to the other ends of the multiple springs, multiple fixing blocks fixedly connected to the inner wall of the bottom end of the housing, annular grooves I formed on the outer side of each of the multiple fixing blocks, slots I formed on the outer side of each of the multiple fixing blocks, a vertical groove formed on the inner wall of the side of the housing, two annular grooves II formed on the inner wall of the side of the housing, multiple slots II formed on the inner wall of the side of the housing, slots I detachably connected to the outer side of each of the multiple fixing blocks, multiple slots II detachably connected to the inner wall of the side of the housing, and multiple insulating components slidably connected to the inner wall of the bottom end of the housing;

[0007] As a further description of the above technical solution: the insulating component includes an iron core, the bottom end of which is slidably connected to the inner wall of the bottom end of the housing, and an insulating sleeve is fixedly connected to both the top and bottom ends of the iron core. Two slots are opened on both the front and rear sides of the iron core, and two blocks are fixedly connected to the inner wall of the insulating sleeve. The rear sides of the two blocks are fixedly connected to the front side of the iron core, and the front side of the first block is fixedly connected to the rear side of the iron core.

[0008] As a further description of the above technical solution: one end of each of the multiple springs is fixedly connected to the bottom end of the movable groove, and the outer side of the annular block is slidably connected to the inner wall of the movable groove;

[0009] As a further description of the above technical solution: the inner wall of the first slot is fixedly connected to the outside of the first card block, and the inner wall of the second slot is fixedly connected to the outside of the second card block;

[0010] As a further description of the above technical solution: the inner wall of the card slot three is fixedly connected to the outside of the card block three.

[0011] This utility model has the following beneficial effects:

[0012] 1. In this utility model, pressing the iron core causes the circular block to slide downwards. The downward sliding of the circular block causes the spring to contract and store elastic potential energy. At this time, rotating the iron core causes the first locking block to find the first locking slot and the second locking block to find the second locking slot. Pressing the iron core stops, and the spring releases elastic potential energy, causing the first locking block to enter the first locking slot and the second locking block to enter the second locking slot, thus fixing the iron core. Similarly, this method can also be used to disengage the first locking block from the first locking slot and the second locking block from the second locking slot, thus disassembling the iron core. This method allows for quick and individual replacement of the iron core, reducing maintenance costs. Attached Figure Description

[0013] Figure 1This is a three-dimensional schematic diagram of a modular stator tooth for a permanent magnet synchronous motor proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of a modular stator gear housing for a permanent magnet synchronous motor proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of a modular stator tooth fixing block for a permanent magnet synchronous motor proposed in this utility model;

[0016] Figure 4 This is a schematic diagram of the core structure of a modular stator tooth for a permanent magnet synchronous motor proposed in this utility model.

[0017] Legend:

[0018] 1. Box body; 2. Movable groove; 3. Spring; 4. Circular block; 5. Fixing block; 6. Circular groove one; 7. Slot one; 8. Vertical groove; 9. Circular groove two; 10. Slot two; 11. Iron core; 12. Insulating sleeve; 13. Slot three; 14. Slot three; 15. Slot two; 16. Slot one. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1 to 3 This utility model provides an embodiment of a modular stator tooth for a permanent magnet synchronous motor, comprising a housing 1, which provides a fixation for the modular stator tooth, facilitating its disassembly and fixation. A movable groove 2 is provided on the inner wall of the bottom end of the housing 1, which is used to place springs 3 and ring blocks 4, facilitating the sliding of the ring blocks 4 and providing space for their sliding. Multiple springs 3 are fixedly connected to the inner wall of the bottom end of the housing 1, which are used to store and release elastic potential energy, facilitating the rebound of the ring blocks 4. The other end of each spring 3 is fixedly connected to a ring block 4, which is used to connect the springs 3, facilitating the sliding of a locking block 15 outside the ring block 4. Multiple fixing blocks 5 are fixedly connected to the inner wall of the bottom end of the housing 1, which, in conjunction with the inner wall of the housing 1, clamp the iron core 11, facilitating the rotation of the iron core 11 within the gap between the fixing blocks 5 and the inner wall of the housing 1.

[0021] Multiple fixing blocks 5 have annular grooves 6 on their outer surfaces. These grooves allow the locking blocks 16 to slide, facilitating their movement into slots 7. Each fixing block 5 also has a slot 7 on its outer surface, used to secure the locking blocks 16 and thus the iron core 11. A vertical groove 8 is formed on the inner side wall of the housing 1, allowing the iron core 11 to be easily inserted into the housing 1. Two annular grooves 9 are formed on the inner side wall of the housing 1, allowing the locking blocks 15 to slide along their inner walls. Multiple slots 10 are formed on the inner side wall of the housing 1. Slot 2 10 is used to fix the second card block 15, which facilitates the fixing of the iron core 11. The external of multiple fixing blocks 5 can be detachably connected to the first card block 16. Multiple second card blocks 15 are detachably connected to the inner wall of the side of the box 1. Both the first card block 16 and the second card block 15 are used to fix the iron core 11. Multiple insulating components are slidably connected to the inner wall of the bottom end of the box 1. One end of multiple springs 3 is fixedly connected to the bottom end of the movable slot 2. The external of the ring block 4 is slidably connected to the inner wall of the movable slot 2. The inner wall of the first card slot 7 is fixedly connected to the external of the first card block 16. The inner wall of the second card slot 10 is fixedly connected to the external of the second card block 15.

[0022] Reference Figure 1 , Figure 3 and Figure 4 The insulation assembly includes an iron core 11. The bottom end of the iron core 11 is slidably connected to the inner wall of the bottom end of the housing 1. An insulating sleeve 12 is fixedly connected to both the top and bottom ends of the iron core 11. The insulating sleeve 12 is used to isolate the winding from the iron core 11 and prevent short circuits. Two slots 13 are opened on the front and rear sides of the outer side of the iron core 11. The slots 13 are used to fix the blocks 14 to facilitate the fixing of the insulating sleeve 12. Two blocks 14 are fixedly connected to the inner wall of the insulating sleeve 12. The blocks 14 facilitate the fixing of the insulating sleeve 12. The rear side of two blocks 15 is fixedly connected to the front side of the iron core 11, and the front side of one block 16 is fixedly connected to the rear side of the iron core 11. The inner wall of the slot 13 is fixedly connected to the outside of the blocks 14.

[0023] Working principle: The iron core 11 is placed inside the housing through the vertical slot 8. Pressing the iron core 11 causes the ring block 4 to slide downwards. The downward sliding of the ring block 4 causes the spring 3 to contract and store elastic potential energy. At this time, the ring block 4 disengages from the annular slot 2 9, allowing the locking block 2 15 to slide on the inner wall of the annular slot 2 9, and the locking block 1 16 to slide on the inner wall of the annular slot 1 6. Then, the iron core 11 is rotated, so that the locking block 1 16 reaches the locking slot 1 7, and the locking block 2 15 reaches the locking slot 2 10. Pressing the iron core 11 stops, causing the spring 3 to release its elastic potential energy. This causes the first locking block 16 to be fixed inside the first locking slot 7, and the second locking block 15 to be fixed inside the second locking slot 10, thus fixing the iron core 11. Similarly, pressing the iron core 11 causes the ring block 4 to slide downwards. The downward sliding of the ring block 4 causes the spring 3 to contract and store elastic potential energy. The downward sliding of the ring block 4 causes the first locking block 16 to disengage from the first locking slot 7, and the second locking block 15 to disengage from the second locking slot 10. At this time, rotating the iron core 11 causes the second locking block 15 to reach the vertical slot 8, releasing the iron core 11 and causing the spring 3 to release its elastic potential energy, thus disassembling the iron core 11.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular stator gear for a permanent magnet synchronous motor, comprising a housing (1), characterized in that: The bottom inner wall of the box (1) is provided with a movable groove (2). Multiple springs (3) are fixedly connected to the bottom inner wall of the box (1). The other end of the multiple springs (3) is fixedly connected with a ring block (4). Multiple fixing blocks (5) are fixedly connected to the bottom inner wall of the box (1). Annular groove 1 (6) is provided on the outside of the multiple fixing blocks (5). A slot 1 (7) is provided on the outside of the multiple fixing blocks (5). A vertical groove (8) is provided on the side inner wall of the box (1). Two annular grooves 2 (9) are provided on the side inner wall of the box (1). Multiple slots 2 (10) are provided on the side inner wall of the box (1). A slot 1 (16) is detachably connected to the outside of the multiple fixing blocks (5). Multiple slots 2 (15) are detachably connected to the side inner wall of the box (1). Multiple insulating components are slidably connected to the bottom inner wall of the box (1).

2. The modular stator gear for a permanent magnet synchronous motor according to claim 1, characterized in that: The insulating assembly includes an iron core (11), the bottom end of which is slidably connected to the inner wall of the bottom end of the housing (1). An insulating sleeve (12) is fixedly connected to both the top and bottom ends of the iron core (11). Two slots (13) are opened on the front and rear sides of the outer side of the iron core (11). Two blocks (14) are fixedly connected to the inner wall of the insulating sleeve (12). The rear sides of the two blocks (15) are fixedly connected to the front side of the iron core (11), and the front side of the first block (16) is fixedly connected to the rear side of the iron core (11).

3. The modular stator gear for a permanent magnet synchronous motor according to claim 1, characterized in that: One end of each of the multiple springs (3) is fixedly connected to the bottom end of the movable groove (2), and the outer side of the ring block (4) is slidably connected to the inner wall of the movable groove (2).

4. The modular stator gear for a permanent magnet synchronous motor according to claim 1, characterized in that: The inner wall of the first slot (7) is fixedly connected to the outside of the first block (16), and the inner wall of the second slot (10) is fixedly connected to the outside of the second block (15).

5. The modular stator gear for a permanent magnet synchronous motor according to claim 2, characterized in that: The inner wall of the card slot three (13) is fixedly connected to the outside of the card block three (14).

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