Winding mechanism of motor stator

By designing components such as the limiting plate and the inclined liquid outlet pipe, the problem of dovetail bar swaying caused by rotor expansion was solved, achieving stable fixation and lubrication of the winding assembly, and improving the performance and reliability of the motor.

CN223652114UActive Publication Date: 2025-12-09KUMACT POWER SYST CO LTD
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Patent Information

Application Number
CN202423194720.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-12-09
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

During operation, the expansion of the rotor causes the dovetail bars and the dovetail slots of the stator core to expand inconsistently, which may lead to shaking and affect the magnetic field distribution and motor performance.

Method used

The winding assembly is fixed by components such as limiting plates, threaded rods, sliding grooves, sliding plates, slots and plugs, and the lubricant is automatically supplied through an inclined liquid outlet pipe, which reduces friction and overheating between the rotor and stator.

Benefits of technology

It effectively fixes the winding assembly, reduces heat transfer from rotor expansion to the stator core, prevents dovetail bar swaying, and maintains the stability and service life of the motor.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223652114U_ABST
    Figure CN223652114U_ABST
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Abstract

The utility model relates to a winding mechanism of a motor stator, which belongs to the technical field of motor stators and comprises a stator iron core, a limiting plate is arranged at the top of the stator iron core, a fixing assembly is arranged at the top of the limiting plate, and a winding assembly is arranged in the stator iron core. The winding assembly comprises a skeleton, and the inner wall of the stator core is provided with a limiting groove. When the motor is used, the rotor is heated to expand during use, at the moment, the outer wall of the rotor extrudes a permeation plate, the permeation plate drives a liquid outlet pipe to move after being extruded, and after the liquid outlet pipe moves, a hole formed in the liquid outlet pipe is communicated with a discharging hole; and at the moment, the lubricating liquid on the inner wall of the lubricating groove flows onto the permeation plate through the liquid outlet pipe, so that the motor rotor is lubricated, mutual friction between the stator and the rotor is reduced, overheating between the stator and the rotor is avoided, and the influence on the stability of the winding assembly is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator technical field relates to a winding mechanism of motor stator. BACKGROUND

[0002] In the operation process of motor, the stator and the rotor as the core component, its interaction and collaborative work plays a key role to the overall performance of motor, with the continuous development of motor technology, the efficiency, reliability and service life of motor are put forward higher requirement, and the performance optimization of stator winding mechanism becomes the important research to meet these requirements;

[0003] According to the search, the publication (announcement) No. CN219999113U discloses a motor stator winding module, which discloses the technical scheme that "including stator core and winding;The upper and lower sides of the stator core are fixedly installed with cover plates through uniformly distributed bolts;The winding includes a coil and a framework, the framework is composed of uniformly arranged silicon steel sheets, the framework is uniformly installed in the interior of the stator core, the coil is wound in the wire slot in the middle of the framework, the interior edge of the stator core is uniformly provided with a limiting mechanism matched with the winding, the left and right sides of the stator core and the two cover plates are symmetrically provided with guide grooves, the outer sides of the framework are provided with dovetail strips, the inner walls of the stator core are uniformly provided with dovetail grooves slidably connected with the dovetail strips, etc.", which has the technical effects of motor stator winding module, convenient winding installation of individual winding, more convenient winding of winding, more stable fixation of winding and more convenient use;

[0004] However, in the above-mentioned comparative document, the framework and the coil are installed on the stator core through the cooperation of the dovetail strip and the dovetail groove, so as to realize the fixation of the winding. However, during the use of the motor, the rotation of the rotor will generate a large amount of heat, so that the rotor will expand. The expansion of the rotor may contact one side of the framework. At this time, the heat on the rotor will be transmitted to the dovetail strip through the framework. The dovetail strip will expand after being subjected to the heat. However, the stator core is not in contact with the rotor, so that the heat received by the stator core is smaller than the heat received by the framework. Therefore, the dovetail strip on the framework may expand differently from the dovetail groove on the stator core. The different expansion may cause the dovetail strip to shake, thereby affecting the magnetic field distribution and performance of the motor, and further affecting the use of the motor.

[0005] To solve the above-mentioned problems, a winding mechanism of motor stator is provided in the present application. UTILITY MODEL CONTENTS

[0006] The utility model provides a winding mechanism of motor stator aiming at the technical problems existing in the prior art.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a winding mechanism for a motor stator, including a stator core, a limiting plate is provided on the top of the stator core, a fixing component is provided on the top of the limiting plate, and a winding component is provided inside the stator core;

[0008] The winding assembly includes a frame, a limiting groove is formed on the inner wall of the stator core, the frame is slidably connected to the stator core through the limiting groove, a winding body is fixedly connected to the side of the frame away from the stator core, a receiving groove is formed on the side of the frame away from the frame, a first spring is fixedly connected to the winding body through the receiving groove, a sliding block is fixedly connected to one end of the first spring, a permeation plate is fixedly connected to the end of the sliding block away from the first spring, a lubrication groove is formed inside the winding body, a discharge hole is formed in the winding body through the lubrication groove, a groove is formed on the side of the winding body near the permeation plate, a liquid outlet pipe is slidably connected to the winding body through the groove, and one end of the liquid outlet pipe is fixedly connected to the permeation plate.

[0009] A baffle is fixedly connected to the outer wall of the sliding block, and a retaining groove is opened on the winding body. By setting the baffle and retaining groove, the permeation plate is limited, and the detachment of the permeation plate is prevented from affecting the use of the motor.

[0010] The fixing assembly includes a threaded rod slidably connected to a limiting plate, a threaded hole on the stator core, the threaded rod being threadedly connected to the threaded hole in the stator core, a sliding groove on the limiting plate, a sliding plate slidably connected to the limiting plate through the sliding groove, a slot on one side of the sliding plate, and a plug rod fixedly connected to the limiting plate through the sliding groove. By setting the threaded hole, sliding groove, sliding plate, slot, plug rod, and threaded rod, the winding assembly is fixed, preventing the threaded rod from coming loose due to vibration during motor use.

[0011] A fixing block is fixedly connected to the top of the sliding plate, and a pull ring is rotatably connected to the fixing block. By setting the fixing block and the pull ring, the sliding plate can be moved conveniently.

[0012] A second spring is fixedly connected to the stator core, and a protrusion is fixedly connected to the end of the second spring away from the stator core. By setting the second spring and the protrusion, the initial positioning of the frame is achieved, so as to avoid affecting the fixation of the winding body.

[0013] The inner wall of the outlet pipe is inclined, which facilitates the flow of lubricating fluid into the interior of the permeation plate and avoids affecting the lubrication effect on the permeation plate.

[0014] An insulating gasket is detachably connected inside the stator core. The sidewall of the insulating gasket is in contact with the outer wall of the winding body. By setting the insulating gasket, the inside of the stator core is protected, and short circuit between the winding and the stator core is avoided.

[0015] The beneficial effects of this utility model are:

[0016] When the motor is in use, the rotor will expand due to heat. At this time, the outer wall of the rotor will squeeze the permeation plate. After being squeezed, the permeation plate will move the liquid outlet pipe. After the liquid outlet pipe moves, the hole opened on the liquid outlet pipe will connect with the discharge hole. At this time, the lubricating liquid on the inner wall of the lubrication tank will flow into the permeation plate through the liquid outlet pipe, thereby lubricating the motor rotor, reducing the mutual friction between the stator and the rotor, and thus avoiding overheating between them, thereby avoiding affecting the stability of the winding assembly.

[0017] By setting threaded holes, sliding grooves, sliding plates, slots, insert rods, and threaded rods, the winding assembly is fixed. When the winding assembly needs to be installed on the stator core, the winding assembly is first initially fixed to the stator core. Then, the limiting plate is fixed to the stator core by the threaded rod. After the threaded rod fixes the limiting plate, the user slides the sliding plate to insert the insert rod into the slot. This allows the sliding plate to protect and block the threaded rod, thus preventing the threaded rod from coming loose due to vibration during motor use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the overall structure of this utility model;

[0019] Figure 2 This utility model is a schematic diagram illustrating the structure of the winding body and its related parts;

[0020] Figure 3 This utility model is a schematic diagram showing the structure of the liquid outlet pipe and its related parts;

[0021] Figure 4 This utility model is a schematic diagram illustrating the structure of a threaded rod and its related parts.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Stator core; 2. Limiting plate;

[0024] 3. Fixing component; 301. Threaded hole; 302. Sliding groove; 303. Sliding plate; 304. Slot; 305. Insert rod; 306. Fixing block; 307. Pull ring; 308. Threaded rod;

[0025] 4. Winding assembly; 401. Limiting groove; 402. Frame; 403. Winding body; 404. Storage groove; 405. First spring; 406. Sliding block; 407. Penetration plate; 408. Lubrication groove; 409. Discharge hole; 410. Groove; 411. Liquid outlet pipe; 412. Baffle groove; 413. Baffle plate;

[0026] 5. Second spring; 6. Protrusion; 7. Insulating pad. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0029] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0030] Reference Figures 1-3A winding mechanism for a motor stator includes a stator core 1, a limit plate 2 on the top of the stator core 1, a fixing component 3 on the top of the limit plate 2, and a winding assembly 4 inside the stator core 1. The winding assembly 4 includes a frame 402, a limit groove 401 on the inner wall of the stator core 1, and the frame 402 slidably connected to the stator core 1 through the limit groove 401. A winding body 403 is fixedly connected to the side of the frame 402 away from the stator core 1. By sliding the frame 402 inside the limit groove 401, the winding body 403 can be fixed to the stator core 1. A receiving groove 404 is provided on the side of the frame 402 away from the frame 402, and a first spring 405 is fixedly connected to the winding body 403 through the receiving groove 404. The receiving groove 404 is used to receive the first spring 405, and a sliding block 406 is fixedly connected to one end of the first spring 405. The first spring 405 can reset the sliding block 406 to its original position after it moves. The end of the sliding block 406 away from the first spring 405 is fixedly connected to the permeation plate 407. The sliding block 406 is used to move the permeation plate 407. The winding body 403 has a lubrication groove 408 inside. The lubrication groove 408 is used to place the lubricating fluid. The winding body 403 has a discharge hole 409 through the lubrication groove 408. The side of the winding body 403 near the permeation plate 407 has a groove 410. The winding body 403 is slidably connected to the liquid outlet pipe 411 through the groove 410. The discharge hole 409 can allow the lubricating fluid inside the lubrication groove 408 to flow into the liquid outlet pipe 411. One end of the liquid outlet pipe 411 is fixedly connected to the permeation plate 407. The liquid outlet pipe 411 can apply the lubricating fluid to the permeation plate 407. The permeation plate 407 is used to dampen the rotor.

[0031] Reference Figure 2 A baffle 413 is fixedly connected to the outer wall of the sliding block 406. The winding body 403 has a retaining groove 412. The cooperation of the baffle 413 and the retaining groove 412 can limit the position of the permeation plate 407, preventing the permeation plate 407 from detaching from the winding body 403 when it slides, thus preventing the detachment of the permeation plate 407 from affecting the use of the motor.

[0032] Reference Figure 1 and Figure 4The fixing component 3 includes a threaded rod 308 slidably connected to a limiting plate 2, and a threaded hole 301 on the stator core 1. The threaded rod 308 is threadedly connected to the threaded hole 301 on the stator core 1. The cooperation of the threaded rod 308 and the threaded hole 301 can fix the limiting plate 2 to the stator core 1, thereby fixing the winding component 4. The limiting plate 2 has a sliding groove 302, and a sliding plate 303 is slidably connected to the limiting plate 2 through the sliding groove 302. The sliding groove 302 can connect the sliding plate 303 to the limiting plate 2. A slot 304 is opened on one side of the sliding plate 303, and a plug rod 305 is fixedly connected to the limiting plate 2 through the sliding groove 302. Through the cooperation of the slot 304 and the plug rod 305, the sliding plate 303 can protect and fix the threaded rod 308, thereby preventing the threaded rod 308 from coming off due to vibration during motor use.

[0033] Reference Figure 4 A fixing block 306 is fixedly connected to the top of the sliding plate 303, and a pull ring 307 is rotatably connected to the fixing block 306. The cooperation between the fixing block 306 and the pull ring 307 can realize the convenient movement of the sliding plate 303. When it is necessary to slide the sliding plate 303, the sliding plate 303 can be moved conveniently through the pull ring 307, thereby realizing the quick fixation of the threaded rod 308.

[0034] Reference Figure 2 A second spring 5 is fixedly connected to the stator core 1. A protrusion 6 is fixedly connected to the end of the second spring 5 away from the stator core 1. The cooperation between the second spring 5 and the protrusion 6 can achieve the initial positioning of the frame 402. When the frame 402 is inserted into the limiting groove 401 opened in the stator core 1, the frame 402 can be initially positioned by the cooperation between the second spring 5 and the protrusion 6, thereby avoiding affecting the fixation of the winding body 403.

[0035] Reference Figure 3 The inner wall of the outlet pipe 411 is set to be inclined. By setting the inner wall of the outlet pipe 411 to be inclined, the lubricating fluid can flow into the interior of the permeation plate 407 through the outlet pipe 411, thereby avoiding affecting the lubrication effect on the permeation plate 407.

[0036] Reference Figure 1 An insulating pad 7 is detachably connected inside the stator core 1. The side wall of the insulating pad 7 is in contact with the outer wall of the winding body 403. The insulating pad 7 is used to facilitate the internal cleaning of the stator core 1 and prevent short circuit between the winding and the stator core 1.

[0037] Working principle:

[0038] In the stator winding mechanism of this motor, during motor assembly, the frame 402 is first inserted into the limiting slot 401, and then the limiting plate 2 is fixed to the stator core 1 by the threaded rod 308. After the threaded rod 308 fixes the limiting plate 2, the user slides the sliding plate 303 to allow the insertion rod 305 to be inserted into the slot 304. This allows the sliding plate 303 to protect and block the threaded rod 308, thus preventing the threaded rod 308 from coming loose due to vibration during motor use. When the motor is in use, the rotor generates heat when rotating, and the rotor expands when heated. At this time, the outer wall of the rotor will compress the permeation plate 407. After being squeezed, the liquid outlet pipe 411 will move. After the liquid outlet pipe 411 moves, the hole opened on the liquid outlet pipe 411 will connect with the discharge hole 409. At this time, the lubricating liquid on the inner wall of the lubrication tank 408 will flow into the permeation plate 407 through the liquid outlet pipe 411, thereby lubricating the motor rotor, reducing the mutual friction between the stator and the rotor, and thus avoiding overheating between the two, thereby avoiding affecting the stability of the winding assembly 4. After the motor stops using, the rotor will return to its original position. At this time, the permeation plate 407 will return to its original position with the cooperation of the first spring 405 and the sliding block 406, thereby preventing the lubricating liquid from flowing into the permeation plate 407 and causing waste when not in use.

[0039] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0040] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A winding mechanism for a motor stator, comprising a stator core (1), characterized in that, The stator core (1) is provided with a limiting plate (2) at the top, and a fixing component (3) is provided at the top of the limiting plate (2). The stator core (1) is provided with a winding component (4) inside. The winding assembly (4) includes a frame (402). A limiting groove (401) is formed on the inner wall of the stator core (1). The frame (402) is slidably connected to the stator core (1) through the limiting groove (401). A winding body (403) is fixedly connected to the side of the frame (402) away from the stator core (1). A receiving groove (404) is formed on the side of the frame (402) away from the frame (402). A first spring (405) is fixedly connected to the winding body (403) through the receiving groove (404). One end of the first spring (405) is fixedly connected to a sliding... The sliding block (406) is fixedly connected to a permeation plate (407) at one end away from the first spring (405). The winding body (403) has a lubrication groove (408) inside. The winding body (403) has a discharge hole (409) through the lubrication groove (408). The winding body (403) has a groove (410) on the side near the permeation plate (407). The winding body (403) is slidably connected to a liquid outlet pipe (411) through the groove (410). One end of the liquid outlet pipe (411) is fixedly connected to the permeation plate (407).

2. The winding mechanism of a motor stator according to claim 1, characterized in that, The outer wall of the sliding block (406) is fixedly connected to a baffle (413), and the winding body (403) has a retaining groove (412) through the winding body (403).

3. The winding mechanism of a motor stator according to claim 1, characterized in that, The fixing component (3) includes a threaded rod (308) slidably connected to a limiting plate (2), a threaded hole (301) on the stator core (1), the threaded rod (308) being threadedly connected to the threaded hole (301) on the stator core (1), a sliding groove (302) on the limiting plate (2), a sliding plate (303) slidably connected to the limiting plate (2) through the sliding groove (302), a slot (304) on one side of the sliding plate (303), and a plug rod (305) fixedly connected to the limiting plate (2) through the sliding groove (302).

4. The winding mechanism of a motor stator according to claim 3, characterized in that, A fixing block (306) is fixedly connected to the top of the sliding plate (303), and a pull ring (307) is rotatably connected to the fixing block (306).

5. The winding mechanism of a motor stator according to claim 1, characterized in that, A second spring (5) is fixedly connected to the stator core (1), and a protrusion (6) is fixedly connected to the end of the second spring (5) away from the stator core (1).

6. The winding mechanism of a motor stator according to claim 1, characterized in that, The inner wall of the outlet pipe (411) is inclined.

7. The winding mechanism of a motor stator according to claim 1, characterized in that, An insulating pad (7) is detachably connected inside the stator core (1), and the side wall of the insulating pad (7) is in contact with the outer wall of the winding body (403).

Citation Information

Patent Citations

  • Motor stator winding module

    CN219999113U