Modular electric machine with segmented stator winding

Abstract

This utility model discloses a modular motor with segmented stator windings, relating to the field of motor technology. The utility model includes a frame, a rotating shaft rotatably mounted on one side of the inner wall of the frame, a rotor fixedly mounted on the outer wall of the rotating shaft, and two stator cores slidably mounted on the inner wall of the frame. Each stator core has several winding slots on its inner wall, and a winding assembly is wound inside each of the winding slots. Fixed slots are provided at both the upper and lower ends of the outer wall of each stator core, and connecting blocks slidably mounted on the inner walls of both fixed slots. Through the design of two stator cores, each independently wound with a winding assembly, the stator winding assembly is segmented and modular. When a portion of the stator winding is damaged, it is not necessary to replace the entire stator winding, thus greatly reducing the motor's maintenance costs. Furthermore, the two stator cores are easy to assemble and disassemble, facilitating quick repair in case of damage.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, and in particular relates to a modular motor with segmented stator windings. Background Technology

[0002] An electric motor is an electromagnetic device that converts electrical energy into mechanical energy based on the law of electromagnetic induction. Its working principle is that when current passes through the stator winding, a magnetic field is generated. This magnetic field interacts with the rotor magnetic field to generate a Lorentz force that drives the rotor to rotate.

[0003] In real life, when a motor is in use, the stator winding is usually an integral structure. When part of the stator winding is damaged, the entire stator winding needs to be replaced, which greatly increases the maintenance cost of the motor. Therefore, we provide a modular motor with segmented stator windings. Utility Model Content

[0004] The purpose of this utility model is to provide a modular motor with segmented stator windings. Through grooves and adjusting rods, it solves the problem that in the use of existing motors, since the stator windings are usually an integral structure, when a part of the stator winding is damaged, the entire stator winding needs to be replaced, which greatly increases the maintenance cost of the motor.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: A modular motor with segmented stator windings includes a frame, a rotating shaft rotatably mounted inside the frame, a rotor fixedly mounted on the outer wall of the rotating shaft, and two stator cores slidably mounted on the inner wall of the frame. Each stator core has several winding slots on its inner wall, and a winding group is wound inside the winding slots. The upper and lower ends of the outer wall of the stator core are provided with fixing grooves. The inner walls of the two fixing grooves are slidably provided with connecting blocks. One side of each of the two connecting blocks is fixedly provided with an installation rod. The outer wall of each installation rod passes through one side of the connecting block located in the same horizontal direction. The top of the outer wall of the connecting block is movably provided with an elastic block. The other side of the connecting block is fixedly provided with a first spring.

[0006] Preferably, a front cover is bolted to one end of the base, and the outer wall of the rotating shaft penetrates one side of the front cover.

[0007] Preferably, sliders are fixedly provided on both sides of the connecting block, and the outer walls of the two sliders are slidably connected to the two sides of the fixing groove respectively.

[0008] By adopting the above technical solution, the slider limits the movement of the connecting block, allowing the connecting block to move horizontally along the fixed groove.

[0009] Preferably, one end of the first spring is fixedly connected to the inner side of the fixing groove.

[0010] By adopting the above technical solution, the first spring can increase the stability of the connection between the two connecting blocks.

[0011] Preferably, each of the two stator cores has a positioning rod fixedly provided at one end of its opposite side, and one end of each positioning rod is engaged with one end of the two stator cores respectively.

[0012] By adopting the above technical solution, the positioning rod can quickly position and contact the two stator cores, facilitating subsequent connection and fixation.

[0013] Preferably, slide bars are fixedly provided on both sides of the outer wall of the stator core, and the outer walls of the two slide bars are slidably connected to both sides of the inner wall of the machine base.

[0014] By adopting the above technical solution, the slide bar is used to limit the installation of the stator core, so that the stator core remains stable in the frame.

[0015] Preferably, one end of one of the stator cores is fixedly provided with four second springs, and one end of the four second springs is provided with a washer.

[0016] By adopting the above technical solution, the winding assembly can be protected to prevent the front cover from colliding with the front end of the winding assembly.

[0017] Preferably, one end of one of the stator cores is fixedly provided with four second springs, and one end of the four second springs is provided with a washer.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes two stator cores. After removing the stator winding assembly from the base, pressing down on the elastic block causes the two connecting blocks at the same horizontal position to move in opposite directions under the elastic action of the first spring. The movement of the connecting blocks moves the mounting rod until the mounting rod separates from the connecting block, thus separating the two stator cores. Similarly, the new stator core is connected and fixed to the intact stator core. Through the design of two stator cores, each independently wound with a winding assembly, the stator winding assembly is segmented and modular. When a part of the stator winding is damaged, there is no need to replace the entire stator winding, thereby greatly reducing the maintenance cost of the motor. At the same time, the two stator cores are easy to disassemble and assemble, facilitating quick repair when damaged.

[0019] This invention incorporates a washer ring. During the connection process between the front cover and the base, the front cover comes into contact with the washer ring. As the front cover moves, it causes the washer ring to move as well. The movement of the washer ring compresses the second spring, which is then cushioned by the elasticity of the second spring. This protects the winding assembly and prevents the front cover from colliding with the front end of the winding assembly.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal connection structure of the base of this utility model; Figure 3 This is a schematic diagram of the stator core connection structure of this utility model; Figure 4 This is a schematic diagram of the connection structure of the connecting block of this utility model.

[0022] In the diagram: 11. Base; 12. Front cover; 13. Shaft; 14. Rotor; 15. Stator core; 151. Fixing slot; 152. Connecting block; 153. Mounting rod; 154. Elastic block; 155. First spring; 156. Slider; 157. Positioning rod; 158. Sliding bar; 16. Winding slot; 17. Winding assembly; 21. Second spring; 22. Washer ring. Detailed Implementation

[0023] 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.

[0024] Example 1:

[0025] Please see Figure 1-4 As shown, a modular motor with segmented stator windings includes a frame 11, a rotating shaft 13 rotatably mounted inside the frame 11, a rotor 14 fixedly mounted on the outer wall of the rotating shaft 13, and two stator cores 15 slidably mounted on the inner wall of the frame 11. Each stator core 15 has several winding slots 16 on its inner wall, and a winding group 17 is wound inside the winding slots 16. The design of two stator cores 15, and that each stator core 15 is independently wound with a winding group 17, allows for segmented design of the stator winding group. When a part of the stator winding is damaged, it is not necessary to replace the entire stator winding. The upper and lower ends of the outer wall of the stator core 15 are provided with fixing grooves 151. Connecting blocks 152 are slidably provided on the inner walls of both fixing grooves 151. Mounting rods 153 are fixedly provided on one side of each connecting block 152. The outer wall of each mounting rod 153 passes through one side of the connecting block 152 located in the same horizontal direction. The mounting rod 153 slides with the connecting block 152. An elastic block 154 is movably provided at the top of the outer wall of the connecting block 152. The elastic block 154 can be a wedge-shaped block structure, connected to the connecting block 152 by a spring, and can be hidden when pressed. Inside the connecting block 152, when pressure is released, the elastic block 154 can extend to the outside of the connecting block 152 to define its position. A first spring 155 is fixedly mounted on the other side of the connecting block 152. The top of the connecting block 152 is lower than the top of the fixing groove 151, and the mounting rods 153 on the two connecting blocks 152 at the same horizontal position are arranged crosswise. The outer wall of the elastic block 154 contacts one side of the connecting block 152. At this time, the first spring 155 is in a stretched state. A front cover 12 is bolted to one end of the base 11, and the outer wall of the rotating shaft 13 penetrates one side of the front cover 12. Shaft 13 is rotatably engaged with the front end cover. Slider blocks 156 are fixedly mounted on both sides of the connecting block 152. The outer walls of the two sliders 156 are slidably connected to both sides of the fixing groove 151. The sliders 156 are used to limit the movement of the connecting block 152. Slide grooves adapted to the sliders 156 are opened on both sides of the fixing groove 151, and the length of the slide grooves is shorter than the length of the fixing groove 151. One end of the first spring 155 is fixedly connected to the inner side of the fixing groove 151. Positioning rods 157 are fixedly mounted on opposite ends of the two stator cores 15. One end of each positioning rod 157 is connected to one of the two stator cores. One end of the stator core 15 is engaged, and two positioning rods 157 are arranged crosswise. The positioning rods 157 are used for positioning and connecting the two stator cores 15. Positioning holes adapted to the positioning rods 157 are opened on the opposite side of the two stator cores 15. Slide strips 158 are fixed on both sides of the outer wall of the stator core 15. The outer walls of the two slide strips 158 are slidably connected to both sides of the inner wall of the machine base 11. The slide strips 158 are used to limit the installation of the stator core 15, so that the stator core 15 remains stable in the machine base 11. Mounting grooves adapted to the slide strips 158 are opened on both sides of the inner wall of the machine base 11.

[0026] Example 2:

[0027] Please see Figure 1-4 As shown, a modular motor with segmented stator windings is provided, in which one end of a stator core 15 is fixedly provided with four second springs 21, and one end of the four second springs 21 is provided with a washer 22. The washer 22 is made of rubber, and the inner diameter of the washer 22 is adapted to the inner diameter of the stator core 15, and the outer diameter of the washer 22 is adapted to the outer diameter of the stator core 15.

[0028] The working principle is as follows: When the winding assembly 17 is damaged, the front end cover 12 is removed, and then the entire stator winding assembly is pulled outward to separate it from the base 11. Then, the elastic blocks 154 are pressed down. At this time, under the elastic action of the first spring 155, it drives the two connecting blocks 152 located at the same horizontal position to move in opposite directions. The movement of the connecting blocks 152 drives the mounting rod 153 to move until the mounting rod 153 separates from the connecting blocks 152, and then the two stator cores 15 are separated. Then, the new stator core 15 is connected to the intact stator core 15 in the same way. Fix the stator core 15 and align the slide bars 158 on both sides of the stator core 15 and slide them into the base 11. Then, pass the front cover 12 through the outer wall of the rotating shaft 13 and contact the base 11. Then, fix it by bolts. During the connection between the front cover 12 and the base 11, the front cover 12 will contact the washer ring 22. As the front cover 12 moves, it will drive the washer ring 22 to move. The movement of the washer ring 22 will compress the second spring 21. Under the elastic action of the second spring 21, it will buffer the washer ring 21. This can protect the winding group 17 and prevent the front cover 12 from colliding with the front end of the winding group 17.

[0029] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular motor with segmented stator windings, comprising a frame (11), characterized in that: The machine base (11) is provided with a rotating shaft (13) inside, and a rotor (14) is fixed on the outer wall of the rotating shaft (13). Two stator cores (15) are slidably provided on the inner wall of the machine base (11). Each stator core (15) has several winding grooves (16) on its inner wall, and a winding group (17) is wound inside the winding groove (16). The upper and lower ends of the outer wall of the stator core (15) are provided with fixing grooves (151). The inner walls of the two fixing grooves (151) are provided with connecting blocks (152). The two connecting blocks (152) are provided with mounting rods (153) on one side. The outer wall of each mounting rod (153) passes through one side of the connecting block (152) located in the same horizontal direction. The top of the outer wall of the connecting block (152) is provided with an elastic block (154). The other side of the connecting block (152) is provided with a first spring (155).

2. A modular motor with segmented stator windings according to claim 1, characterized in that: One end of the base (11) is bolted with a front cover (12), and the outer wall of the rotating shaft (13) penetrates one side of the front cover (12).

3. A modular motor with segmented stator windings according to claim 1, characterized in that: Both sides of the connecting block (152) are fixedly provided with sliders (156), and the outer walls of the two sliders (156) are slidably connected to both sides of the fixing groove (151).

4. A modular motor with segmented stator windings according to claim 1, characterized in that: One end of the first spring (155) is fixedly connected to the inside of the fixing groove (151).

5. A modular motor with segmented stator windings according to claim 1, characterized in that: Each of the two stator cores (15) is fixedly provided with a positioning rod (157) at one end, and one end of the two positioning rods (157) is respectively engaged and connected to one end of the two stator cores (15).

6. A modular motor with segmented stator windings according to claim 1, characterized in that: Slide bars (158) are fixedly provided on both sides of the outer wall of the stator core (15), and the outer walls of the two slide bars (158) are slidably connected to the two sides of the inner wall of the base (11).

7. A modular motor with segmented stator windings according to claim 1, characterized in that: One end of one of the stator cores (15) is fixedly provided with four second springs (21), and one end of the four second springs (21) is provided with a washer (22).

8. A modular motor with segmented stator windings according to claim 7, characterized in that: The inner diameter of the washer (22) is adapted to the inner diameter of the stator core (15), and the outer diameter of the washer (22) is adapted to the outer diameter of the stator core (15).

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