Convenient motor stator and rotor ventilating duct structure

By designing multi-channel ventilation ducts and air-exhaust components, the problem of poor heat dissipation from the motor's stator and rotor was solved, achieving efficient heat dissipation and stable operation of the motor, extending its service life, and improving the overall performance of the motor.

CN223899083UActive Publication Date: 2026-02-10JIANGSU HONGWANG ELECTROMECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202520414480.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-10
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing portable motor stator and rotor ventilation duct structures cannot efficiently remove the heat generated by the stator and rotor during operation, resulting in excessive temperature rise, affecting the stability and service life of the motor, and easily leading to decreased insulation performance and malfunctions.

Method used

A convenient motor stator and rotor ventilation duct structure was designed, including a multi-channel ventilation duct and an air-inducing component. The fan blades generate strong suction, and cold air is diverted into the stator and rotor body through the multi-channel diversion to remove heat. The dustproof net and limiting groove and other components ensure stable operation and prevent impurities from entering.

Benefits of technology

This achieves efficient heat dissipation for the motor, extends its service life, improves operational stability and reliability, reduces noise, prevents damage and failure of insulation materials, and enhances the overall performance of the motor.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223899083U_ABST
    Figure CN223899083U_ABST
Patent Text Reader

Abstract

The utility model provides a portable motor stator and rotor ventilating duct structure, and relates to the technical field of motors. During working, the air inducing assembly is started, the first fixing ring at one end of the stator and rotor body stably supports and drives the supporting ring to rotate, then the fan blades fixed to the supporting ring rotate at a high speed, strong suction force is generated, and external cold air flows into the stator and rotor body under the action of the fan blades. The air flow enters the stator and rotor body through the first ventilating duct, and part of the air flow entering the first ventilating duct directly flows along the channel to take away the heat of the area of the stator and rotor body; and natural wind can enter the interior of the stator and rotor body through the second ventilating duct, so that heat generated by working of the stator and rotor body can be taken away more comprehensively and efficiently through the multi-channel and shunting ventilating mode, and a good heat dissipation effect is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a convenient motor stator and rotor ventilation duct structure. Background Technology

[0002] The background technology of the portable motor stator and rotor ventilation duct structure mainly involves improving the heat dissipation efficiency of motors. In the operation of traditional motors, the ventilation duct design of the stator and rotor often affects the heat dissipation performance of the motor, resulting in excessive temperature rise, which affects the working efficiency and life of the motor. In order to solve this problem, the portable structure optimizes the ventilation duct design, which helps to improve air circulation, enhance heat dissipation, and improve the stability and service life of the motor.

[0003] However, in actual use, the following shortcomings still exist. For example, the existing portable motor stator and rotor ventilation duct structure cannot efficiently remove the heat generated by the stator and rotor during operation. The heat generated during motor operation cannot be dissipated in time, causing the temperature around the stator and rotor to rise continuously. When the insulation material is in a high-temperature environment for a long time, the chemical bonds inside it will gradually break, the molecular structure will be damaged, and the insulation performance will decline. As the insulation performance decreases, the motor is more prone to short circuits, leakage and other faults during operation, which seriously affects the normal operation and service life of the motor. Moreover, replacing the insulation material requires a lot of time and cost, which increases the difficulty and cost of motor maintenance.

[0004] Therefore, this utility model proposes a convenient motor stator and rotor ventilation duct structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a convenient ventilation duct structure for motor stators and rotors.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a portable motor stator and rotor ventilation duct structure, comprising:

[0007] Stator and rotor body;

[0008] A ventilation duct assembly is disposed on a stator and rotor body. The ventilation duct assembly includes a first ventilation duct formed on the stator and rotor body, a ventilation hole formed on the side of the stator and rotor body near the first ventilation duct, and a second ventilation duct formed on the side of the stator and rotor body near the ventilation hole.

[0009] An air-expelling assembly is placed at one end of the stator and rotor body. The air-expelling assembly includes a first fixing ring fixed to one side of the stator and rotor body, a support ring is provided on the first fixing ring, and a fan blade is fixed on the support ring.

[0010] Furthermore, a dustproof net is fixed on the side of the stator and rotor body near the second ventilation duct.

[0011] The beneficial effects of adopting the above-mentioned further solution are: when the motor is running, the air flows to the second ventilation duct, and the dustproof net is fixed inside it, which can effectively filter the dust and impurities in the air, prevent them from entering the motor, avoid affecting the operation of the stator and rotor, thereby ensuring the normal operation of the motor and extending its service life.

[0012] Furthermore, a limiting groove is formed on the first fixing ring, and the support ring is disposed in the limiting groove.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the support ring is set in the limiting groove, the limiting groove restricts the movement trajectory of the support ring, ensuring its stable rotation, thereby ensuring that the fan blades fixed on the support ring rotate smoothly and achieve efficient air extraction.

[0014] Furthermore, a second fixing ring is provided on the side of the stator and rotor body near the fan blades.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the second fixing ring is installed on the stator and rotor body near the fan blades, and the second fixing ring can play a supporting and fixing role for the dustproof plate.

[0016] Furthermore, a limiting component is provided on the side of the stator and rotor body near the first fixed ring, and the limiting component includes a bearing disposed on the stator and rotor body.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the motor will vibrate when it is working, and the bearing and spring connect the stator and rotor body and the first fixed ring.

[0018] Furthermore, a spring sheet is fixed on the bearing, and the other end of the spring sheet is fixed on the first retaining ring.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the spring uses its own elasticity to buffer vibration through the bearing.

[0020] Furthermore, a dustproof plate is fixed to the second fixing ring.

[0021] The beneficial effects of adopting the above-mentioned further solution are: when the motor is running, the dustproof plate is fixed on the second fixing ring, blocking external debris from approaching the fan blades, preventing debris from being drawn into the air intake assembly, avoiding damage to the fan blades, ensuring the normal operation of the air intake assembly, and maintaining the overall performance of the motor.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] In this invention, during operation, the air-expelling assembly is activated, and the first fixing ring at one end of the stator and rotor body provides stable support, driving the support ring to rotate. This causes the fan blades fixed on the support ring to rotate at high speed, generating a strong suction force. Under the action of the fan blades, external cold air enters the stator and rotor body through the first ventilation channel. Part of the airflow entering the first ventilation channel flows directly along the channel, carrying away the heat in that area of ​​the stator and rotor body; the other part is diverted through the ventilation holes, allowing natural wind to enter the interior of the stator and rotor body through the second ventilation channel. Through this multi-channel, diverted ventilation method, the heat generated by the stator and rotor body during operation can be carried away more comprehensively and efficiently, achieving a good heat dissipation effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the portable motor stator and rotor ventilation duct of this utility model;

[0025] Figure 2 This is a schematic diagram of the ventilation duct component structure of the portable motor stator and rotor ventilation duct structure of this utility model.

[0026] Figure 3 This is a cross-sectional view of the ventilation duct component structure of the portable motor stator and rotor ventilation duct structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the limiting component structure of the portable motor stator and rotor ventilation duct structure of this utility model.

[0028] Figure 5 This is a schematic diagram of the air intake component structure of the portable motor stator and rotor ventilation duct structure of this utility model.

[0029] Figure label:

[0030] 1. Stator and rotor body;

[0031] 2. Ventilation duct assembly; 21. First ventilation duct; 22. Ventilation hole; 23. Second ventilation duct; 24. Dustproof net;

[0032] 3. Air intake assembly; 31. First fixing ring; 32. Limiting groove; 33. Support ring; 34. Fan blade; 35. Second fixing ring;

[0033] 4. Limiting components; 41. Bearings; 42. Springs; 43. Dustproof plates. Detailed Implementation

[0034] 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.

[0035] like Figures 1-5 As shown, this embodiment provides a technical solution: a portable motor stator and rotor ventilation duct structure, comprising:

[0036] Stator and rotor body 1;

[0037] Ventilation duct assembly 2 is placed on stator and rotor body 1. Ventilation duct assembly 2 includes a first ventilation duct 21 opened on stator and rotor body 1, a ventilation hole 22 opened on the side of stator and rotor body 1 near the first ventilation duct 21, and a second ventilation duct 23 opened on the side of stator and rotor body 1 near the ventilation hole 22.

[0038] The air intake assembly 3 is located at one end of the stator / rotor body 1. The air intake assembly 3 includes a first fixing ring 31 fixed to one side of the stator / rotor body 1, a support ring 33 mounted on the first fixing ring 31, and a fan blade 34 fixed to the support ring 33. During operation, the air intake assembly 3 is activated, and the first fixing ring 31 at one end of the stator / rotor body 1 provides stable support, causing the support ring 33 to rotate. This, in turn, causes the fan blade 34 fixed to the support ring 33 to rotate at high speed, generating strong suction. External cold air, under the action of the fan blade 34, enters the stator / rotor body 1 through the first ventilation duct 21. The airflow entering the first ventilation duct 21 is divided into two parts: one part flows directly along the first ventilation duct 21, carrying away heat from that area of ​​the stator / rotor body 1; the other part is diverted through the ventilation hole 22, and natural wind flows through the second ventilation duct. Ventilation channel 23 enters the interior of the stator and rotor body 1. This multi-channel, diverted ventilation method can more comprehensively and efficiently remove the heat generated by the stator and rotor body 1 during operation, achieving a good heat dissipation effect. Through the synergistic effect of the first ventilation channel 21 and the second ventilation channel 23, the cold air can fully cover the key heat-generating areas of the stator and rotor body 1, ensuring that the heat is quickly dissipated. At the same time, the high-speed rotation of the fan blades 34 not only enhances the efficiency of airflow, but also avoids local overheating through the diversion design. This structure not only improves the heat dissipation performance, but also ensures the stability and reliability of the motor during long-term high-load operation, thereby extending the service life of the motor. This ventilation system achieves comprehensive heat dissipation of the stator and rotor body 1 through multi-channel diversion and efficient air introduction, significantly improving the working efficiency of the motor.

[0039] The above solutions still have the problem of failing to improve the motor's operational stability when vibration occurs during operation. Figures 1-3 As shown: A dustproof net 24 is fixed on the side of the stator and rotor body 1 near the second ventilation duct 23. When the motor is running, the air flows to the second ventilation duct 23. The dustproof net 24 is fixed in the ventilation duct and can effectively filter dust and impurities in the air to prevent them from entering the motor. The entry of dust and impurities may affect the operation of the stator and rotor body 1, leading to a decrease in motor performance or damage. The presence of the dustproof net 24 ensures the cleanliness of the motor interior, ensures the normal operation of the motor, and extends the service life of the motor.

[0040] like Figure 1 as well as Figures 4-5 As shown, a limiting groove 32 is provided on the first fixed ring 31, and a support ring 33 is set in the limiting groove 32. The limiting groove 32 restricts the movement trajectory of the support ring 33, ensuring its stable rotation. This ensures that the fan blade 34 fixed on the support ring 33 can rotate smoothly, avoiding efficiency loss due to vibration or displacement. Stable rotation further improves the working efficiency of the air-driving assembly 3, ensuring that the motor heat dissipation effect reaches the best state. A second fixed ring 35 is provided on the side of the stator and rotor body 1 near the fan blade 34. The second fixed ring 35 is installed on the stator and rotor body 1 near the fan blade 34. Its main function is to support and fix the dustproof plate 43. Through the installation of the second fixed ring 35, the dustproof plate 43 can be firmly fixed on the motor, preventing it from shifting due to vibration or external force, thereby ensuring the continuous effectiveness of the dustproof function and protecting the internal components of the motor from external interference.

[0041] like Figure 1 as well as Figures 4-5 As shown, a limiting component 4 is provided on the side of the stator and rotor body 1 near the first fixed ring 31. The limiting component 4 includes a bearing 41 mounted on the stator and rotor body 1. When the motor is working, it will generate vibration. The bearing 41 and the spring plate 42 connect the stator and rotor body 1 and the first fixed ring 31, which plays a role in buffering vibration. The spring plate 42 is fixed on the bearing 41, and the other end of the spring plate 42 is fixed on the first fixed ring 31. The spring plate 42 uses its own elasticity to absorb and disperse vibration energy through the bearing 41, reducing the impact of vibration on the motor structure. This not only improves the running stability of the motor, but also reduces noise and extends the service life of the motor. A dustproof plate 43 is fixed on the second fixed ring 35. When the motor is running, the dustproof plate 43 is fixed on the second fixed ring 35. Its main function is to block external debris from approaching the fan blades 34 and prevent debris from being drawn into the air intake assembly 3. The ingress of debris may damage the fan blades 34 and affect the normal operation of the air intake assembly 3. The presence of the dustproof plate 43 effectively protects the fan blades 34 and ensures the efficient operation of the air intake assembly 3, thereby maintaining the overall performance and heat dissipation effect of the motor.

[0042] like Figures 1-5 As shown, when the portable motor is working, after the air intake assembly 3 is activated, the first fixing ring 31 at one end of the stator and rotor body 1 provides stable support for the support ring 33, causing it to rotate. This, in turn, causes the fan blades 34 fixed on the support ring 33 to rotate at high speed. The fan blades 34 quickly cut through the air, generating a strong suction force, which draws external cold air into the stator and rotor body 1 through the first ventilation duct 21. The airflow entering the first ventilation duct 21 is divided into two paths: one part flows directly along the duct, carrying away the heat in that area; the other part is diverted through the ventilation holes 22. At the same time, natural wind enters from the second ventilation duct 23. This multi-channel, diverted ventilation method allows cold air to fully cover the key heat-generating areas, quickly dissipating heat and avoiding local overheating. This improves the stability and reliability of the motor during long-term high-load operation and extends its service life. The dustproof net 24 on the side of the stator and rotor body 1 near the second ventilation duct 23 can effectively filter dust and impurities entering the ventilation duct, preventing them from entering the motor and affecting its operation. The rotor and stator body 1 operates, ensuring the cleanliness of the motor's internal components and guaranteeing normal motor operation. The limiting groove 32 on the first fixed ring 31 restricts the movement trajectory of the support ring 33, ensuring the fan blades 34 rotate smoothly and avoiding efficiency loss due to vibration or offset, thus improving the working efficiency of the induced draft assembly 3. The second fixed ring 35 is installed near the fan blades 34, supporting and fixing the dustproof plate 43 to prevent its displacement, ensuring the dustproof function remains effective and protecting the internal components of the motor. The bearing 41 and spring plate 42 in the limiting assembly 4 connect the rotor and stator body 1 and the first fixed ring 31. The spring plate 42 uses its own elasticity to absorb and disperse the vibration energy generated by the motor operation through the bearing 41, reducing the impact of vibration on the motor structure, improving operational stability, and reducing noise. The dustproof plate 43 on the second fixed ring 35 blocks external debris from approaching the fan blades 34, preventing debris from being drawn into the induced draft assembly 3, protecting the fan blades 34, ensuring the efficient operation of the induced draft assembly 3, and maintaining the overall performance and heat dissipation effect of the motor.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A portable motor stator and rotor ventilation duct structure, characterized in that, include: Stator and rotor body (1); Ventilation duct assembly (2), the ventilation duct assembly (2) is placed on the stator and rotor body (1), the ventilation duct assembly (2) includes a first ventilation duct (21) opened on the stator and rotor body (1), a ventilation hole (22) is opened on the side of the stator and rotor body (1) near the first ventilation duct (21), and a second ventilation duct (23) is opened on the side of the stator and rotor body (1) near the ventilation hole (22); The air intake assembly (3) is placed at one end of the stator and rotor body (1). The air intake assembly (3) includes a first fixing ring (31) fixed on one side of the stator and rotor body (1). A support ring (33) is provided on the first fixing ring (31), and a fan blade (34) is fixed on the support ring (33).

2. The portable motor stator and rotor ventilation duct structure according to claim 1, characterized in that: A dustproof net (24) is fixed on the side of the stator and rotor body (1) near the second ventilation duct (23).

3. The portable motor stator and rotor ventilation duct structure according to claim 1, characterized in that: A limiting groove (32) is provided on the first fixing ring (31), and the support ring (33) is disposed in the limiting groove (32).

4. The portable motor stator and rotor ventilation duct structure according to claim 1, characterized in that: A second fixing ring (35) is provided on the side of the stator and rotor body (1) near the fan blade (34).

5. The portable motor stator and rotor ventilation duct structure according to claim 1, characterized in that: A limiting component (4) is provided on the side of the stator and rotor body (1) near the first fixed ring (31), and the limiting component (4) includes a bearing (41) provided on the stator and rotor body (1).

6. The portable motor stator and rotor ventilation duct structure according to claim 5, characterized in that: A spring sheet (42) is fixed on the bearing (41), and the other end of the spring sheet (42) is fixed on the first fixing ring (31).

7. The portable motor stator and rotor ventilation duct structure according to claim 4, characterized in that: A dustproof plate (43) is fixed on the second fixing ring (35).