Paint dipping device for motor stator production

By designing a varnish-impregnation device for motor stator production, the device utilizes the combined effects of centrifugal force and fluid dynamics to enable the motor stator to reciprocate up and down and rotate axially in the varnish solution. This solves the problem of low varnish-impregnation efficiency, achieves rapid and uniform penetration of the varnish solution, and improves the varnish-impregnation efficiency of the motor stator.

CN224191800UActive Publication Date: 2026-05-01SHANDONG MINGKANG ANTUOSHAN SPECIAL ELECTROMECHANICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG MINGKANG ANTUOSHAN SPECIAL ELECTROMECHANICAL CO LTD
Filing Date
2025-05-06
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing varnishing equipment used in motor stator production has low varnishing efficiency, resulting in slow production progress and the inability of the varnish to penetrate into the stator quickly and evenly.

Method used

Design a paint dipping device for motor stator production. Through the paint dipping mechanism and moving components, the motor stator can achieve reciprocating motion and axial rotation in the paint solution. By utilizing the combined effect of centrifugal force and fluid dynamics, the paint solution can be accelerated to penetrate into the interior of the stator.

Benefits of technology

By dynamically rotating to expel air bubbles from inside the stator, rapid and uniform penetration of the paint is achieved, thus improving the paint impregnation efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224191800U_ABST
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Abstract

The utility model provides a paint dipping device for motor stator production, which belongs to the technical field of motor stator production, and comprises a paint storage barrel and a paint dipping mechanism arranged at the upper end of the paint storage barrel, a moving assembly used for driving the paint dipping mechanism to move up and down is arranged in the paint storage barrel, and the moving assembly comprises a plurality of rotating wheels arranged outside the paint dipping mechanism. An annular guide plate is arranged at the upper end of the inner arc face of the paint storage barrel, and the multiple rotating wheels are all matched with the upper end of the annular guide plate. According to the utility model, through the paint dipping mechanism and the moving assembly, the motor stator can do up-and-down reciprocating motion and also generate axial rotation in the paint liquid, through the synergistic effect of centrifugal force and fluid dynamics, the paint liquid is accelerated to permeate into a stator winding gap, and bubbles in the winding are effectively discharged through dynamic rotation; and the paint liquid quickly and uniformly permeates into the stator, so that the paint dipping efficiency of the motor stator is improved.
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Description

A dipping apparatus for producing motor stators Technical Field

[0001] This utility model belongs to the field of motor stator manufacturing technology, specifically relating to an impregnation device for motor stator manufacturing. Background Technology

[0002] The stator is an important component of motors such as generators and starters. It is a crucial part of the electric motor. The stator consists of three parts: the stator core, the stator windings, and the frame. Stator impregnation is an essential step in the motor manufacturing process, typically using specialized impregnation equipment for motor stator production.

[0003] Most existing motor stator production equipment uses a traditional dipping method, which involves placing the stator in a hanging frame and then completely immersing it in a paint bucket for settling. This method requires waiting for the air and volatiles inside the stator to be fully expelled before the paint can be fully penetrated into the stator. However, this process is time-consuming, and the paint cannot penetrate into the stator quickly and evenly, resulting in low dipping efficiency for the motor stator and affecting the overall production progress. Summary of the Invention

[0004] In view of this, the present invention provides a varnishing device for producing motor stators. Through the varnishing mechanism and moving components, the motor stator can achieve both up-and-down reciprocating motion and axial rotation in the varnish solution. Through the synergistic effect of centrifugal force and fluid dynamics, the varnish solution is accelerated to penetrate into the stator winding gap. The dynamic rotation effectively removes air bubbles inside the winding, allowing the varnish solution to penetrate into the stator quickly and evenly, thereby improving the varnishing efficiency of the motor stator.

[0005] To solve the above-mentioned technical problems, this utility model provides a varnishing device for motor stator production, including a varnish storage tank and a varnishing mechanism disposed on its upper end. The varnish storage tank is provided with a moving component for driving the varnishing mechanism to move up and down. The moving component includes multiple rotating wheels disposed outside the varnishing mechanism. An annular guide plate is provided on the upper end of the inner arc surface of the varnish storage tank. The multiple rotating wheels are all configured to cooperate with the upper end of the annular guide plate. This allows the motor stator to achieve both up-and-down reciprocating motion and axial rotation in the varnish liquid. Through the synergistic effect of centrifugal force and fluid dynamics, the varnish liquid is accelerated to penetrate into the stator winding gap. The dynamic rotation effectively removes air bubbles inside the winding, allowing the varnish liquid to quickly and evenly penetrate into the stator, thereby improving the varnishing efficiency of the motor stator.

[0006] The impregnation mechanism includes a support frame mounted on the top of the paint storage tank. A rotating plate is rotatably connected to the top of the support frame. A sliding rod is slidably connected inside a rectangular opening in the middle of the rotating plate. An avoidance opening is provided at the upper end of the support frame near the rotating plate to avoid the sliding rod. A sliding cylinder is slidably connected to the lower end of the sliding rod. A placement frame is provided at the lower end of the sliding cylinder. Multiple rotating wheels are located on the outer arc surface of the placement frame. The support frame is also equipped with a drive assembly for driving the rotating plate to rotate, which serves to impregnate the motor stator with paint.

[0007] The impregnation mechanism also includes a fixed cylinder located at the upper end of the support frame near the clearance opening. An electric push rod is installed inside the fixed cylinder. The upper end of the sliding rod is provided with a clearance groove for the electric push rod to make way. The telescopic end of the electric push rod is rotatably connected to the bottom of the clearance groove, thus providing the function of vertical movement.

[0008] The drive assembly includes a toothed ring disposed on the outer arc surface of the rotating plate, and a gear is rotatably connected to the top of the support frame. The gear meshes with the toothed ring, thus providing a fast transmission function.

[0009] The drive assembly also includes a motor mounted on the upper end of the support frame. The output shaft of the motor is fixedly connected to the gear, thus providing a drive source for the gear.

[0010] The annular guide plate is designed in a wave-like shape.

[0011] The sliding rod is rectangular in shape. The upper end of the sliding cylinder is provided with a sliding opening that matches the sliding rod. The rectangular area at the lower end of the sliding rod is larger than the rectangular area at the upper end. The lower end of the sliding rod slides in conjunction with the rectangular inner cavity of the sliding cylinder.

[0012] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0013] 1. By driving the placement frame to rotate, multiple rotating wheels roll along the annular guide plate during this process. The placement frame and sliding cylinder are guided to move vertically up and down along the sliding rod through the wave-shaped track, generating periodic rotation. This compound motion enables the motor stator to achieve both up-and-down reciprocating motion and axial rotation in the varnish. Through the synergistic effect of centrifugal force and fluid dynamics, the varnish is accelerated to penetrate into the stator winding gap. The dynamic rotation effectively removes air bubbles inside the winding, allowing the varnish to quickly and evenly penetrate into the stator, thereby improving the varnish impregnation efficiency of the motor stator.

[0014] 2. Start the electric push rod. Its telescopic end pushes the sliding rod, sliding cylinder and placement frame down along the rectangular opening on the rotating plate, so that the electronic stator is immersed in the paint in the paint tank until the rotating wheel contacts the annular guide plate. Then start the motor. Its output shaft rotates and drives the gear to rotate synchronously. When the gear rotates, it drives the rotating plate, sliding rod, sliding cylinder and placement frame to rotate synchronously through the toothed ring that meshes with it, thus providing drive for the placement frame and its auxiliary mechanisms. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the main structure of a paint impregnation device for producing motor stators according to this utility model.

[0016] Figure 2 is a cross-sectional view of the present invention;

[0017] Figure 3 is an enlarged structural diagram of point A of this utility model;

[0018] Figure 4 is an enlarged structural diagram of section B of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 100, paint storage tank; 200, rotating wheel; 201, annular guide plate; 300, support frame; 301, rotating plate; 302, sliding rod; 303, sliding cylinder; 304, placement rack; 305, fixed cylinder; 306, electric push rod; 400, toothed ring; 401, gear; 402, motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to Figures 1-4. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the scope of protection of this utility model.

[0021] This embodiment provides a varnish impregnation device for motor stator production, as shown in Figures 1-4: it includes a varnish storage tank 100 and an impregnation mechanism disposed on its upper end. The varnish storage tank 100 is provided with a moving component for driving the impregnation mechanism to move up and down. The moving component includes multiple rotating wheels 200 disposed outside the impregnation mechanism. The multiple rotating wheels 200 are evenly distributed in a ring outside the impregnation mechanism. An annular guide plate 201 is provided at the upper end of the inner arc surface of the varnish storage tank 100. The multiple rotating wheels 200 are all configured to cooperate with the upper end of the annular guide plate 201. The annular guide plate 201 is wavy.

[0022] As shown in Figures 1-4, the paint impregnation mechanism includes a support frame 300 mounted on the upper end of the paint storage tank 100. A rotating plate 301 is rotatably connected to the top of the support frame 300. A sliding rod 302 is slidably connected within a rectangular opening in the middle of the rotating plate 301. An clearance opening for the sliding rod 302 is provided at the upper end of the support frame 300 near the rotating plate 301. A sliding cylinder 303 is slidably connected to the lower end of the sliding rod 302. A placement frame 304 is located at the lower end of the sliding cylinder 303. Multiple rotating wheels 200 are located on the outer arc surface of the placement frame 304. The support frame 300 is also equipped with a mechanism for driving the rotating plate 301. The rotating drive assembly has a rectangular sliding rod 302. The upper end of the sliding cylinder 303 is provided with a sliding opening that matches the sliding rod 302. The rectangular area of ​​the lower end of the sliding rod 302 is larger than the rectangular area of ​​its upper part. The lower end of the sliding rod 302 slides in conjunction with the rectangular inner cavity of the sliding cylinder 303. The impregnation mechanism also includes a fixed cylinder 305 located on the upper end of the support frame 300 near the clearance opening. An electric push rod 306 is provided inside the fixed cylinder 305. The upper end of the sliding rod 302 is provided with a clearance groove for providing clearance for the electric push rod 306. The telescopic end of the electric push rod 306 is rotatably connected to the bottom of the clearance groove.

[0023] As shown in Figures 1-3, the drive assembly includes a toothed ring 400 disposed on the outer arc surface of the rotating plate 301, a gear 401 rotatably connected to the top of the support frame 300, the gear 401 meshing with the toothed ring 400, and the drive assembly also includes a motor 402 disposed on the upper end of the support frame 300, the output shaft of the motor 402 being fixedly connected to the gear 401.

[0024] The working principle of the varnish-impregnation device for producing motor stators provided by this utility model is as follows: First, the motor stators are placed sequentially in the placement rack 304. Then, the electric push rod 306 is activated, and its telescopic end pushes the sliding rod 302, the sliding cylinder 303, and the placement rack 304 downward along the rectangular opening on the rotating plate 301, thereby immersing the motor stators into the varnish in the varnish tank 100 until the rotating wheel 200 contacts the annular guide plate 201. Then, the motor 402 is activated, and its output shaft rotates to drive the gear 401 to rotate synchronously. When the gear 401 rotates, it drives the rotating plate 301 through the toothed ring 400 that meshes with it. The sliding rod 302, sliding cylinder 303, and placement frame 304 rotate synchronously. At the same time, multiple rotating wheels 200 roll along the annular guide plate 201. The placement frame 304 and sliding cylinder 303 are guided to move vertically up and down along the sliding rod 302 through the wave-shaped track, generating periodic rotation. This compound motion enables the motor stator to achieve both up-and-down reciprocating motion and axial rotation in the varnish. Through the synergistic effect of centrifugal force and fluid dynamics, the varnish is accelerated to penetrate into the stator winding gap. The dynamic rotation effectively removes air bubbles inside the winding, allowing the varnish to quickly and evenly penetrate into the stator, thereby improving the varnish impregnation efficiency of the motor stator.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A varnishing apparatus for producing motor stators, characterized in that: The device includes a paint storage tank (100) and a paint dipping mechanism disposed on its upper end. The paint storage tank (100) is provided with a moving component for driving the paint dipping mechanism to move up and down. The moving component includes a plurality of rotating wheels (200) disposed outside the paint dipping mechanism. The upper end of the inner arc surface of the paint storage tank (100) is provided with an annular guide plate (201). The plurality of rotating wheels (200) are all configured to cooperate with the upper end of the annular guide plate (201).

2. The impregnation apparatus for producing motor stators as described in claim 1, characterized in that: The impregnation mechanism includes a support frame (300) disposed on the upper end of the paint storage tank (100). A rotating plate (301) is rotatably connected to the top of the support frame (300). A sliding rod (302) is slidably connected inside a rectangular opening in the middle of the rotating plate (301). An avoidance opening for avoiding the sliding rod (302) is provided at the upper end of the support frame (300) near the rotating plate (301). A sliding cylinder (303) is slidably connected to the lower end of the sliding rod (302). A placement frame (304) is provided at the lower end of the sliding cylinder (303). Multiple rotating wheels (200) are located on the outer arc surface of the placement frame (304). A drive assembly for driving the rotating plate (301) to rotate is also provided on the support frame (300).

3. The impregnation apparatus for producing motor stators as described in claim 2, characterized in that: The impregnation mechanism also includes a fixed cylinder (305) located on the upper end of the support frame (300) near the clearance opening. The fixed cylinder (305) is provided with an electric push rod (306). The upper end of the sliding rod (302) is provided with a clearance groove for providing clearance for the electric push rod (306). The telescopic end of the electric push rod (306) is rotatably connected to the bottom of the clearance groove.

4. The impregnation apparatus for producing motor stators as described in claim 2, characterized in that: The drive assembly includes a toothed ring (400) disposed on the outer arc surface of the rotating plate (301), and a gear (401) is rotatably connected to the top of the support frame (300), the gear (401) meshing with the toothed ring (400).

5. The impregnation apparatus for producing motor stators as described in claim 4, characterized in that: The drive assembly also includes a motor (402) disposed on the upper end of the support frame (300), and the output shaft of the motor (402) is fixedly connected to the gear (401).

6. The impregnation apparatus for producing motor stators as described in claim 1, characterized in that: The annular guide plate (201) is arranged in a wave shape.

7. The impregnation apparatus for producing motor stators as described in claim 2, characterized in that: The sliding rod (302) is rectangular in shape. The upper end of the sliding cylinder (303) is provided with a sliding opening that is adapted to the sliding rod (302). The rectangular area of ​​the lower end of the sliding rod (302) is larger than the rectangular area of ​​its upper part. The lower end of the sliding rod (302) slides in conjunction with the rectangular inner cavity of the sliding cylinder (303).