Optimized structure of cooling fan of high-speed motor

By improving the structural design of the cooling fan and adopting uniform air supply components and connecting components, the problems of uneven distribution of the cooling fan and vibration noise are solved, uniform heat dissipation and noise reduction of the motor are achieved, maintenance processes are simplified, motor weight is reduced, and operating efficiency is improved.

CN223282246UActive Publication Date: 2025-08-29QINGDAO WOHUA SOFT CONTROL CO LTD
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Patent Information

Application Number
CN202422220613.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-11
Publication Date
2025-08-29
Estimated Expiration
2034-09-11

AI Technical Summary

Technical Problem

The design of existing high-speed motor cooling fans leads to uneven distribution of cooling air, poor local heat dissipation effect, high vibration and noise, and increases the overall weight of the motor and maintenance complexity.

Method used

The uniform air supply assembly and connection assembly are adopted, and the cooling fan is separated from the motor. The curved plate flow guide, elastic components and sound insulation materials are used to achieve uniform air supply, buffering and sound insulation. The fan and the motor can be detachably connected for easy maintenance.

Benefits of technology

The cooling fan realizes uniform heat dissipation of the motor, reduces noise, reduces vibration, simplifies the maintenance process, reduces the overall weight of the motor, and improves operating performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of motor equipment, and relates to a high-speed motor cooling fan optimization structure, which comprises a uniform air supply assembly and a connecting assembly, the uniform air supply assembly comprises an air inlet, an air duct and air outlets, one end of the air inlet is connected with a cooling fan, the other end is connected with the air duct, and the bottom end of the air duct is uniformly provided with a plurality of air outlets; the bottom of the uniform air supply assembly is connected with the connecting assembly, a pair of elastic assemblies is arranged in the connecting assembly, the high-speed motor is placed in the connecting assembly, and the two ends of the high-speed motor are connected with the elastic assemblies. According to the utility model, uniform air supply to the high-speed motor by the cooling fan is realized, vibration generated in the operation process of the high-speed motor is buffered, noise is isolated, and the problem that the performance of the motor is influenced by the existing installation mode of the high-speed motor and the cooling fan can be solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of motor equipment, and in particular relates to an optimized structure of a high-speed motor cooling fan. Background Art

[0002] High-speed motors are widely used in industries such as industry, automotive, and aerospace due to their high efficiency, compact size, and light weight. However, they generate significant heat during operation. If heat is not dissipated effectively and promptly, the motor will overheat, impacting its performance and lifespan. Therefore, the design of a cooling system is crucial for the stable operation of high-speed motors. Existing high-speed motors use cooling fans for heat dissipation, which are typically fixed directly to one end of the motor via bolts or mounting brackets.

[0003] The design and installation position of the cooling fan in the prior art have the following disadvantages: 1. The cooling air is not evenly distributed inside the motor, and the heat dissipation effect at the end close to the cooling fan is better than that at the end far from the cooling fan, which will accelerate the local aging and damage of the motor; 2. When the motor runs at high speed, it will generate certain vibration and noise. The fixed connection between the cooling fan and one end of the high-speed motor may cause the connector between the fan and the motor to be subjected to excessive stress, thereby increasing the risk of damage; 3. The fixed connection usually requires additional brackets, fasteners and other components, which will increase the overall weight of the motor. The increased weight may have a certain impact on the operating performance of the motor, such as increasing energy consumption and reducing speed. Utility Model Content

[0004] In order to solve the deficiencies in the prior art, the utility model provides an optimized structure of a high-speed motor cooling fan, which enables the cooling fan to supply air evenly to the high-speed motor. This structure separates the cooling fan from the high-speed motor, thereby solving the problem that the existing installation method of the high-speed motor and the cooling fan affects the motor performance; in addition, this structure can also buffer the vibration generated by the high-speed motor during operation and isolate the noise.

[0005] The utility model adopts the following technical solutions.

[0006] An optimized structure of a high-speed motor cooling fan includes a uniform air supply component and a connecting component. The uniform air supply component includes an air inlet, an air duct, and an air outlet. One end of the air inlet is connected to the cooling fan, and the other end is connected to the air duct. A plurality of air outlets are evenly arranged at the bottom end of the air duct.

[0007] The bottom of the uniform air supply component is connected to the connecting component. A pair of elastic components are provided inside the connecting component. The high-speed motor is placed inside the connecting component, and both ends of the high-speed motor are connected to the elastic components.

[0008] Furthermore, a flow guide component is provided inside the air duct, and the flow guide component is a plurality of arc-shaped plates provided on the upper and lower walls of the air duct;

[0009] The arc plate arranged on the upper wall of the air duct has an arc opening facing downwards and is used to guide the cooling air downwards; the arc plate arranged on the lower wall has an arc opening facing upwards and is used to guide the cooling air upwards.

[0010] Furthermore, the end of the air inlet connected to the cooling fan is the point with the largest cross-sectional area, and the end of the air inlet connected to the air duct is the point with the smallest cross-sectional area;

[0011] One end of the air duct away from the air inlet has an inwardly concave angle, and the other end of the air duct away from the air inlet is closed.

[0012] Furthermore, the connecting assembly includes an upper shell and a lower shell, one end of the upper shell is fixedly connected to the bottom of the air duct, and the other end is connected to the lower shell.

[0013] Furthermore, connecting plates are provided at both ends of the connection side between the upper shell and the lower shell, and bolt holes are provided on the connecting plates. The upper shell and the lower shell are connected through the connecting plates and the bolts thereon.

[0014] Furthermore, the elastic component includes a fixed block, a limiting block and a spring. The fixed block is fixedly connected to the side wall of the lower shell, one end of the spring is connected to the fixed block, and the other end of the spring is connected to the limiting block.

[0015] Furthermore, the bottom wall of the lower shell is provided with a plurality of sponge strips, and the high-speed motor is placed on the sponge strips; the side wall of the lower shell is also provided with a through hole, and the rotating shaft of the high-speed motor passes through the through hole.

[0016] Furthermore, the upper shell and the lower shell are made of thin metal steel plates, and the inner side or the outer side of the upper shell and the lower shell is coated with a damping layer.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The optimized structure of the high-speed motor cooling fan provided by the utility model enables the cold air blown by the cooling fan to evenly dissipate the heat of the high-speed motor. The upper and lower shells are made of sound insulation materials to isolate the noise generated during the operation of the high-speed motor. The setting of the sponge strips and elastic components further plays a buffering and soundproofing role for the high-speed motor.

[0019] 2. The cooling fan and the air inlet are detachably connected. When the cooling fan fails, you only need to remove the bolts to repair the cooling fan separately. When the high-speed motor fails, you only need to remove the bolts between the upper and lower shells and take the motor out of the lower shell to repair the high-speed motor separately. This structure is simple in design and easy to repair, which greatly reduces the maintenance cost.

[0020] 3. This structure separates the cooling fan from the high-speed motor. There are no connecting parts above the high-speed motor, which avoids the use of mounting brackets, fasteners and other components in the existing technology to install the cooling fan and high-speed motor, resulting in an increase in the overall weight of the motor and thus affecting the performance of the high-speed motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of an optimized structure of a high-speed motor cooling fan provided by the utility model;

[0022] Figure 2 It is a structural schematic diagram of the uniform air supply component in the utility model.

[0023] In the figure: 1-air inlet; 2-air duct; 3-air outlet; 4-arc plate; 5-upper shell; 6-lower shell; 7-connecting plate; 8-fixing block; 9-spring; 10-limiting block; 11-sponge strip; 12-cooling fan; 13-high-speed motor DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. The embodiments described in this application are only some embodiments of the present invention, not all embodiments. Based on the spirit of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-2 As shown, an optimized structure of a high-speed motor cooling fan includes a uniform air supply component and a connecting component. One end of the uniform air supply component is connected to the cooling fan 12, and the bottom of the uniform air supply component is connected to the connecting component. A high-speed motor 13 is provided inside the connecting component.

[0026] like Figure 2 As shown, the uniform air supply assembly includes an air inlet 1 and an air duct 2. The end of the air inlet 1 with the largest cross-section is connected to the cooling fan 12 by bolts, and the end with the smallest cross-section is connected to the air duct 2. The end of the air duct 2 away from the air inlet 1 has an inwardly concave angle, and the end of the air duct 2 away from the air inlet 1 is closed. A guide assembly is provided inside the air duct 2, and a plurality of air outlets 3 are evenly provided at the bottom of the air duct 2, with the openings of the air outlets 3 facing the high-speed motor 13. The guide assembly includes a plurality of arc-shaped plates 4 arranged on the upper and lower walls of the air duct 2. The arc-shaped plates 4 arranged on the upper wall have an arc opening downward and are used to guide the cooling air downward; the arc-shaped plates 4 arranged on the lower wall have an arc opening upward and are used to guide the cooling air upward. Through the arrangement of the guide assembly and the air outlet 1, the cooling air blown out by the cooling fan 12 can evenly dissipate heat for the high-speed motor 13.

[0027] like Figure 1 As shown, the connection assembly includes an upper shell 5 and a lower shell 6. The upper shell 5 is connected to the lower shell 6. The two ends of the connection side of the upper shell 5 and the lower shell 6 are provided with a connection plate 7, and the connection plate 7 is provided with a bolt hole. The upper shell 5 and the lower shell 6 are connected by the connection plate 7 and the bolts thereon. The end of the upper shell 5 away from the connection plate 7 is fixedly connected to the bottom of the air duct 2. The fixed connection can be achieved by welding, bolt connection, etc. The bottom wall of the lower shell 6 is provided with a plurality of sponge strips 11. The two sides of the lower shell 6 are provided with an elastic assembly, which includes a fixed block 8, a limit block 10 and a spring 9. The fixed block 8 is fixedly connected to the side wall of the lower shell 6. One end of the spring 9 is connected to the fixed block 8, and the other end of the spring 9 is connected to the limit block 10. The high-speed motor 13 is placed in the lower shell 6, and the two ends of the high-speed motor 13 are connected to the elastic assembly. A through hole is also provided on one side of the lower shell, and the shaft of the high-speed motor 13 passes through the through hole. The upper and lower housings 5 ​​and 6 are soundproof structures, typically constructed of thin metal steel plates. This effectively reduces the noise generated by the high-speed motor 13 during operation. To further reduce noise, a damping material, such as damping paint or asphalt, can be applied to the inside or outside of the housing to prevent the steel plates from conforming and causing low-frequency resonance, further reducing noise transmission. The elastic components and sponge strips 11 provide cushioning, shock absorption, and sound insulation.

[0028] Working principle:

[0029] During installation, connect one end of the cooling fan to the end with the largest cross-section of the air inlet, and fix the bottom two sides of the air duct to the upper shell. The high-speed motor is placed on the sponge strip of the lower shell, and the rotating shaft extends out of the shell through the through hole on the side wall of the lower shell. Both sides of the high-speed motor are in contact with the elastic component, and the connecting plates of the upper shell and the lower shell are connected by bolts.

[0030] The cold air blown by the cooling fan passes through the air duct and its internal guide components and is blown out from the air outlet, dissipating the heat evenly to the high-speed motor. The upper and lower shells are made of sound insulation materials to isolate the noise generated during the operation of the high-speed motor. The setting of sponge strips and elastic components further plays a buffering and soundproofing role for the high-speed motor.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An optimized structure of a high-speed motor cooling fan, comprising a uniform air supply component and a connecting component, characterized in that: The uniform air supply component comprises an air inlet (1), an air duct (2) and an air outlet (3); one end of the air inlet (1) is connected to a cooling fan (12), and the other end is connected to the air duct (2); a plurality of air outlets (3) are uniformly provided at the bottom end of the air duct (2); The bottom of the uniform air supply component is connected to the connecting component. A pair of elastic components are provided inside the connecting component. The high-speed motor (13) is placed inside the connecting component, and both ends of the high-speed motor (13) are connected to the elastic components.

2. The optimized structure of a high-speed motor cooling fan according to claim 1, characterized in that: A flow guide assembly is provided inside the air duct (2), and the flow guide assembly is a plurality of arc-shaped plates (4) provided on the upper and lower walls of the air duct; The arc-shaped plate (4) arranged on the upper wall of the air duct has an arc opening facing downwards and is used to guide the cooling air downwards; the arc-shaped plate (4) arranged on the lower wall has an arc opening facing upwards and is used to guide the cooling air upwards.

3. The optimized structure of a high-speed motor cooling fan according to claim 1, characterized in that: The end where the air inlet (1) is connected to the cooling fan (12) is the point with the largest cross-sectional area, and the end where the air inlet (1) is connected to the air duct (2) is the point with the smallest cross-sectional area; One end of the air duct (2) away from the air inlet (1) has an inwardly concave angle, and the end of the air duct (2) away from the air inlet (1) is closed.

4. The optimized structure of a high-speed motor cooling fan according to claim 1, characterized in that: The connection assembly comprises an upper shell (5) and a lower shell (6); one end of the upper shell (5) is fixedly connected to the bottom of the air duct (2), and the other end is connected to the lower shell (6).

5. The optimized structure of a high-speed motor cooling fan according to claim 4, characterized in that: Connecting plates (7) are provided at both ends of the connection side of the upper shell (5) and the lower shell (6), and bolt holes are provided on the connecting plates (7). The upper shell (5) and the lower shell (6) are connected via the connecting plates (7) and the bolts thereon.

6. The optimized structure of a high-speed motor cooling fan according to claim 5, characterized in that: The elastic component comprises a fixed block (8), a limiting block (10) and a spring (9); the fixed block (8) is fixedly connected to the side wall of the lower shell (6); one end of the spring (9) is connected to the fixed block (8); and the other end of the spring (9) is connected to the limiting block (10).

7. The optimized structure of a high-speed motor cooling fan according to claim 6, characterized in that: The bottom wall of the lower shell (6) is provided with a plurality of sponge strips (11), and the high-speed motor (13) is placed on the sponge strips (11); the side wall of the lower shell (6) is also provided with a through hole, and the rotating shaft of the high-speed motor (13) passes through the through hole.

8. The optimized structure of a high-speed motor cooling fan according to claim 7, characterized in that: The upper shell (5) and the lower shell (6) are made of thin metal steel plates, and the inner side or outer side of the upper shell (5) and the lower shell (6) are coated with a damping layer.