High-speed high-power centrifugal fan driving motor

By designing heat dissipation fins and air guide bosses in the high-speed, high-power centrifugal fan drive motor, the heat dissipation problem caused by airflow rebound is solved, achieving efficient heat dissipation of the motor and improving its service life and performance.

CN224049431UActive Publication Date: 2026-03-27LUOYANG SUPER ELECTROMECHANICAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-19
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

When existing high-speed, high-power centrifugal fan drive motors are in use, the fan at the end of the motor has an unreasonable internal structure design, which causes most of the airflow to blow towards the motor end housing. The airflow bounces back, resulting in the inability to effectively and quickly dissipate heat.

Method used

A heat dissipation unit including a motor heat sink, an air guide shell, and heat dissipation fan blades is designed. By installing heat dissipation fins and air guide protrusions on the outside of the motor body, the rotation of the heat dissipation fan blades drives the airflow to be discharged along a specific path, avoiding airflow rebound and achieving directional airflow and heat dissipation.

Benefits of technology

It effectively improves the heat dissipation efficiency of the motor, avoids the obstruction of airflow by air bounce, ensures that heat can be quickly discharged, and improves the service life and performance of the motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-speed high-power centrifugal fan driving motor, and relates to the field of motors. The high-speed high-power centrifugal fan driving motor comprises a motor main body and a heat dissipation unit installed outside the motor main body, and the heat dissipation unit comprises a motor heat dissipation shell, an air guide shell and heat dissipation fan blades. According to the high-speed and high-power centrifugal fan driving motor, outside air enters the fixed housing, under the action of the air guide boss, most of airflow is diffused to the outer side, is directly discharged through the air outlet holes and circulates along the exhaust channels among the heat dissipation fins to take away heat, and a small part of airflow enters the air guide boss through the air inlet holes, so that the heat dissipation efficiency is improved. And then the air is diffused outwards under the action of the conical air guide bulge, is exhausted through the air exhaust hole and is exhausted outwards through the air outlet hole, so that the air flow is directionally guided, the air flow is prevented from rebounding to influence the blowing and heat dissipation effects, and meanwhile, the heat dissipation effect on the tail end of the motor main body is also achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field, concretely is a high -speed high -power centrifugal fan drive motor. BACKGROUND

[0002] High -power centrifugal fan is a high -speed fan, through motor drive impeller rotation, air enters after centrifugal rotation from the air inlet, makes the air outlet form high -speed airflow, therefore the drive motor used for centrifugal fan has the characteristics of big torque and high speed.

[0003] And higher speed will make the motor heating condition increases, in order to avoid high temperature burn motor, usually will adopt the motor with fan use, its principle is directly in the rotor end of motor connects fan, makes the rotor rotation process drive the fan rotation of motor end self -bearing, and the fan carries out the blowing of the heat dissipation casing outside the motor, thereby the heat of motor surface can quickly dissipate, plays the role of cooling down;

[0004] However, in actual use, the fan directly blows the heat dissipation casing, on the one hand, is affected by the installation position, causes the airflow to be blown to the motor end casing mostly, and the motor end casing is flat, and is perpendicular to the airflow direction, causes the airflow to bounce back to cause the hindrance to the air intake, on the other hand, the motor end also can exist heating condition, and the airflow directly blows bounce back makes the heat can not be effectively and quickly discharged, for this, a high -speed high -power centrifugal fan drive motor is provided. UTILITY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a high -speed high -power centrifugal fan drive motor, solves the problem that the fan of the drive motor of the prior art high -speed high -power centrifugal fan is not reasonable in internal structure design, causes the airflow to be blown to the motor end casing mostly, causes the hindrance to the air intake of the airflow bounce back, makes the heat can not be effectively and quickly discharged.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a high -speed high -power centrifugal fan drive motor, including motor main part and the heat dissipation unit of installation in the motor main part outside, the heat dissipation unit includes motor heat dissipation shell, air guide casing and heat dissipation fan blade, the motor heat dissipation shell fixed assembly in the motor main part outer wall, and the outer wall of motor heat dissipation shell is integrally formed with heat dissipation fin;The air guide casing is fixedly arranged at the end of motor heat dissipation shell;The heat dissipation fan blade is installed in the air guide casing, and it is transmission connection with motor main part;

[0007] The exhaust air passage is formed between a plurality of groups of the heat dissipation fins, the outer bottom end of the air guide shell is provided with an air outlet hole opposite to the exhaust air passage, the middle part of the air guide shell is fixedly welded with an air guide boss, and the bottom end of the air guide boss is inclined outward to guide the airflow to the air outlet hole.

[0008] Preferably, the motor body comprises a stator and a rotor rotatably arranged in the stator, and the motor heat dissipation shell is assembled to the outer wall of the stator.

[0009] Preferably, the front end of the stator is fixedly assembled with a sealing cover, and the two ends of the rotor respectively penetrate the sealing cover and the end of the stator.

[0010] Preferably, the outer wall of the sealing cover is fixedly assembled with a mounting flange, and the motor heat dissipation shell is fixedly mounted with the mounting flange through a screw rod.

[0011] Preferably, the air guide shell comprises a fixed cover, the top of the fixed cover is fixedly mounted with a dustproof air inlet cover, and the rotor movably penetrates the fixed cover and the air guide boss.

[0012] Preferably, the end of the motor heat dissipation shell is integrally formed with an assembly ring, and the fixed cover and the assembly ring are fixedly mounted through a bolt.

[0013] Preferably, one end of the heat dissipation fan blade is movably connected with the rotor, and the other end of the heat dissipation fan blade is bearing-connected with the dustproof air inlet cover.

[0014] Preferably, the inner bottom surface of the fixed cover is provided with a conical air guide protrusion in the middle part, the top of the air guide boss is provided with an air inlet hole, the bottom end of the air guide boss is provided with an air outlet hole on the outer side, the air inlet hole is opposite to the upper end of the conical air guide protrusion, and the air outlet hole is opposite to the lower end of the conical air guide protrusion, so that the airflow entering the air guide boss through the air inlet hole is outwardly discharged through the air outlet hole along the conical air guide protrusion.

[0015] Preferably, the bottom end of the heat dissipation fin is outwardly diffused, so that the airflow moves downward along the exhaust air passage and then diffuses outwardly.

[0016] The utility model discloses a high -speed high -power centrifugal fan drive motor has the beneficial effect as follows: when the rotor rotates in the stator, its end drives the heat dissipation fan blade to rotate, and the outside air enters the fixed cover shell inside, most of the airflow spreads to the outside and is discharged directly through the air outlet hole under the action of the air guide boss, and the air circulation is carried out along the exhaust passage between the plurality of heat dissipation fins, and the plurality of heat dissipation fins are heat dissipated, a small part of airflow enters the air guide boss inside through the air inlet hole, and then spreads to the outside under the action of the conical air guide convex, and then is discharged through the exhaust hole, and then is discharged outward through the air outlet hole, so that the airflow is carried out directional air guide, the airflow rebounding is avoided to influence the blowing and heat dissipation effect, and part of airflow can flow from the bottom end of the air guide shell, and the end of the motor main body also has heat dissipation effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, below description in the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.

[0018] Figure 1 It is the whole outer surface structure schematic diagram of the utility model;

[0019] Figure 2 It is the whole internal structure explosion drawing of the utility model;

[0020] Figure 3 It is the motor heat dissipation shell structure schematic diagram of the utility model;

[0021] Figure 4 It is the air guide shell internal structure sectional view of the utility model.

[0022] In the drawing: 1, motor main body;11, stator;12, rotor;13, sealing cover;14, mounting flange;2, heat dissipation unit;21, motor heat dissipation shell;22, air guide shell;221, fixed cover shell;222, air guide boss;223, air outlet hole;224, air inlet hole;225, exhaust hole;226, conical air guide convex;23, heat dissipation fan blade;24, dustproof air inlet cover;25, heat dissipation fin;26, assembly ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The high-speed high-power centrifugal fan driving motor provided by the embodiments of the application solves the problem that the fan at the end of the existing high-speed high-power centrifugal fan driving motor blows most of the airflow to the motor end shell due to unreasonable internal structure design, causes airflow to rebound and hinder air intake, and makes heat unable to be effectively and quickly discharged.

[0025] In order to better understand the above technical scheme, the above technical scheme will be described in detail below in combination with the drawings of the specification and specific embodiments.

[0026] The utility model discloses a high-speed high-power centrifugal fan driving motor, according to the attached Figures 1-4 As shown in the figure, including motor main body 1 and install at the outside of motor main body 1's heat dissipation unit 2, heat dissipation unit 2 includes motor heat dissipation shell 21, air guide shell 22 and heat dissipation fan blade 23, motor heat dissipation shell 21 fixedly assembled in the outer wall of motor main body 1, and the outer wall of motor heat dissipation shell 21 is integrally formed with heat dissipation fin 25;Air guide shell 22 is fixedly arranged at the end of motor heat dissipation shell 21;Heat dissipation fan blade 23 is installed in air guide shell 22, and it is drivingly connected with motor main body 1;

[0027] A plurality of heat dissipation fins 25 form an exhaust air passage, an air outlet hole 223 opposite to the exhaust air passage is formed at the bottom of the outer side of the air guide shell 22, and an air guide boss 222 is fixedly welded at the middle of the air guide shell 22, and the bottom of the air guide boss 222 is inclined outward to guide the airflow to the air outlet hole 223.

[0028] The motor main body 1 includes a stator 11 and a rotor 12 rotatably arranged in the stator 11, the motor heat dissipation shell 21 is assembled on the outer wall of the stator 11, a sealing cover 13 is fixedly assembled at the front end of the stator 11, the two ends of the rotor 12 respectively penetrate the sealing cover 13 and the end of the stator 11, and the outer wall of the sealing cover 13 is fixedly assembled with a mounting flange 14, the motor heat dissipation shell 21 is fixedly installed with the mounting flange 14 through a screw rod, in use, the motor main body 1 is installed on the high-power axial flow fan through the mounting flange 14, so that the front end of the rotor 12 is connected with the impeller of the axial flow fan, then the motor main body 1 is electrically connected with the external circuit, the motor main body 1 is started through a switch, so that the rotor 12 rotates in the stator 11, and the rotor 12 drives the impeller of the axial flow fan to rotate.

[0029] The air guide shell 22 comprises a fixed cover 221, a dustproof air inlet cover 24 is fixedly installed on the top of the fixed cover 221, the rotor 12 is movably penetrated through the fixed cover 221 and an air guide boss 222, an assembly ring 26 is integrally formed at the end of the motor heat dissipation shell 21, and the fixed cover 221 is fixedly installed on the assembly ring 26 by bolts.

[0030] One end of the heat dissipation fan blade 23 is movably connected with the rotor 12, and the other end of the heat dissipation fan blade 23 is bearing-connected with the dustproof air inlet cover 24, so that the heat dissipation fan blade 23 can reduce the resistance when rotating with the rotor 12, and the deflection is avoided.

[0031] A conical air guide protrusion 226 is arranged in the middle of the inner bottom surface of the fixed cover 221, the top of the air guide boss 222 is provided with an air inlet hole 224, the bottom end of the air guide boss 222 is provided with an air outlet hole 225 on the outer side, the air inlet hole 224 is opposite to the upper end of the conical air guide protrusion 226, and the air outlet hole 225 is opposite to the lower end of the conical air guide protrusion 226, so that the air flow entering the air guide boss 222 through the air inlet hole 224 is discharged outward through the air outlet hole 225 along the conical air guide protrusion 226, the inner bottom surface of the fixed cover 221 is attached to the end of the stator 11, heat conduction is realized, and the heat at the end of the stator 11 is taken away through the conical air guide protrusion 226.

[0032] The bottom end of the heat dissipation fin 25 is outwardly diffused, so that the air flow moves downward along the air outlet channel and then diffuses outward, so that the heat can be effectively diffused outward, and the bottom end of the heat dissipation fin 25 is outwardly diffused, so that the width of the bottom end is larger, which is more conducive to heat conduction.

[0033] Working principle; when the device is used, the motor body 1 is installed on the high-power axial flow fan through the installation flange 14, the front end of the rotor 12 is connected with the impeller of the axial flow fan, and the motor body 1 is electrically connected with the external circuit;

[0034] By switch starting motor main body 1, make rotor 12 rotate inside stator 11, the rotor 12 rotates when driving the impeller of axial flow fan, its end drives heat dissipation fan blade 23 to rotate, at this time external air is under the action of heat dissipation fan blade 23 and enters the inside of fixed cover 221 through dustproof air inlet cover 24, at this time most of the airflow is contacted with the outer wall of air guide boss 222, at this time under the action of air guide boss 222, the airflow diffuses to the outside through air outlet hole 223 and is directly discharged, then along the exhaust passage between multiple heat dissipation fins 25 and circulates, thereby blowing and heat dissipation to multiple heat dissipation fins 25, simultaneously part of the airflow enters the inside of air guide boss 222 through air inlet hole 224, then under the action of conical air guide convex 226, diffuses to the outside, then is discharged through exhaust hole 225, then is discharged to the outside through air outlet hole 223, so as to carry out directional flow guiding to the airflow, avoid the influence of airflow rebound on blowing and heat dissipation effect, simultaneously part of the airflow can flow through the bottom end of air guide shell 22, to the end of motor main body 1 also play a heat dissipation effect.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-speed, high-power centrifugal fan drive motor, comprising a motor body (1) and a heat dissipation unit (2) mounted on the outside of the motor body (1), characterized in that, The heat dissipation unit (2) includes a motor heat dissipation shell (21), an air guide shell (22), and a heat dissipation fan blade (23). The motor heat dissipation shell (21) is fixedly assembled to the outer wall of the motor body (1), and the outer wall of the motor heat dissipation shell (21) is integrally formed with heat dissipation fins (25). The air guide shell (22) is fixedly disposed at the end of the motor heat dissipation shell (21). The heat dissipation fan blade (23) is installed in the air guide shell (22) and is connected to the motor body (1) in a transmission manner. An exhaust channel is formed between multiple sets of heat dissipation fins (25). An air outlet (223) is provided at the bottom outer side of the air guide housing (22) facing the exhaust channel. An air guide boss (222) is fixedly welded to the middle of the air guide housing (22). The bottom end of the air guide boss (222) is inclined outward so that the airflow is guided to the air outlet (223).

2. The high-speed, high-power centrifugal fan drive motor according to claim 1, characterized in that: The motor body (1) includes a stator (11) and a rotor (12) rotatably disposed inside the stator (11), and the motor heat sink (21) is assembled on the outer wall of the stator (11).

3. The high-speed, high-power centrifugal fan drive motor according to claim 2, characterized in that: The front end of the stator (11) is fixedly fitted with a sealing cover (13), and the two ends of the rotor (12) pass through the sealing cover (13) and the end of the stator (11) respectively.

4. The high-speed, high-power centrifugal fan drive motor according to claim 3, characterized in that: The sealing cover (13) is fixedly fitted with an installation flange (14) on its outer wall, and the motor heat sink (21) is fixedly installed to the installation flange (14) by means of a screw.

5. A high-speed, high-power centrifugal fan drive motor according to claim 2, characterized in that: The air guide housing (22) includes a fixed cover (221), and a dustproof air inlet cover (24) is fixedly installed on the top of the fixed cover (221). The rotor (12) moves through the fixed cover (221) and the air guide boss (222).

6. A high-speed, high-power centrifugal fan drive motor according to claim 5, characterized in that: The end of the motor heat sink (21) is integrally formed with an assembly ring (26), and the fixed cover (221) and the assembly ring (26) are fixedly installed with bolts.

7. A high-speed, high-power centrifugal fan drive motor according to claim 5, characterized in that: One end of the cooling fan blade (23) is movably engaged with the rotor (12), and the other end of the cooling fan blade (23) is connected to the bearing of the dustproof air inlet cover (24).

8. A high-speed, high-power centrifugal fan drive motor according to claim 5, characterized in that: The fixed cover (221) has a conical air guide protrusion (226) in the middle of its inner bottom surface. The top of the air guide protrusion (222) has an air inlet (224), and the outer side of the bottom end of the air guide protrusion (222) has an exhaust hole (225). The air inlet (224) is directly opposite the upper end of the conical air guide protrusion (226), and the exhaust hole (225) is directly opposite the lower end of the conical air guide protrusion (226), so that the airflow entering the air guide protrusion (222) through the air inlet (224) is discharged outward through the exhaust hole (225) along the conical air guide protrusion (226).

9. A high-speed, high-power centrifugal fan drive motor according to claim 1, characterized in that: The bottom of the heat dissipation fins (25) is diffused outward so that the airflow moves downward along the exhaust channel and then diffuses outward.