A centrifugal fan for brushless motor heat dissipation based on CAE simulation

Abstract

The utility model discloses a centrifugal fan for brushless motor heat dissipation based on CAE simulation, comprising a fan housing, the fan housing is connected to a working shaft through a power assembly, a dust screen is also arranged in the fan housing, and a working blade is fixedly connected to one end of the working shaft close to the dust screen; two vibration components, the vibration component comprises a support pad fixedly connected to the inner side wall of the fan housing, a working column is rotatably connected to the support pad, a working turntable is fixedly connected to the working column, the working column is arranged through the working turntable, a plurality of working protrusions are fixedly connected to the working turntable, and the plurality of working protrusions are all arranged in a hemispherical shape, a working spring is also fixedly connected to the support pad, and a working vibration block is fixedly connected to one end of the working spring away from the support pad. The advantage is that the dust screen can be cleaned quickly and conveniently to avoid affecting the air-cooled heat dissipation of the brushless motor.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and in particular to a centrifugal fan for heat dissipation of a brushless motor based on CAE simulation. Background Art

[0002] Centrifugal fans are sometimes called radial fans or centrifugal blowers. They have a motor-driven hub that contains the impellers that discharge air into the fan housing where it is directed to the outlet. Centrifugal fans discharge air at a 90-degree angle (perpendicular) to the air inlet.

[0003] Brushless DC motors have excellent speed and torque characteristics and are suitable for high-speed machines. However, their high-speed rotation will inevitably bring higher losses and cause the motor temperature to rise, which will further affect the motor's operating efficiency, reliability, and life. Therefore, it is very necessary to effectively dissipate heat from the brushless motor. Most of the existing centrifugal fans for brushless motor heat dissipation based on CAE simulation install centrifugal fans around the brushless motor for heat absorption and heat dissipation. However, as the use time increases, the dust screen on the fan will adhere to a lot of dust. The staff often need to stop the fan and remove the dust screen for cleaning, but this will take a long time, thus affecting the continuous heat dissipation effect.

[0004] To this end, we propose a centrifugal fan for brushless motor heat dissipation based on CAE simulation to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and proposes a centrifugal fan for heat dissipation of a brushless motor based on CAE simulation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A centrifugal fan for brushless motor heat dissipation based on CAE simulation, comprising: a fan housing, the fan housing is connected to a working shaft through a power component, a dust screen is also provided in the fan housing, and the working shaft is fixedly connected to a working fan blade at one end close to the dust screen; two vibration components, the vibration component comprises a support pad fixedly connected to the inner side wall of the fan housing, a working column is rotatably connected to the support pad, a working turntable is fixedly connected to the working column, the working column passes through the working turntable, a plurality of working protrusions are fixedly connected to the working turntable, and the plurality of working protrusions are all hemispherically arranged, a working spring is also fixedly connected to the support pad, and the working spring is fixedly connected to a working vibration block at one end away from the support pad, and the plurality of working protrusions are all arranged in cooperation with the working vibration block, and a transmission component is also provided in the fan housing.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the transmission assembly includes a working rotating rod rotatably connected to the fan housing, one end of the working rotating rod passes through the fan housing, two bevel gears 1 are fixedly connected to the working rotating rod, and one end of the two working columns away from the support pad is fixedly connected to bevel gear 2, the two bevel gears 1 are respectively meshed with the two bevel gears 2, and the fan housing is also provided with an installation assembly.

[0009] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the mounting assembly includes a mounting plate fixedly connected to the outer wall of the fan housing, the mounting plate is provided with a plurality of bolt holes, and the plurality of bolt holes are each provided with mounting bolts, and the plurality of mounting bolts are respectively arranged in cooperation with the plurality of bolt holes.

[0010] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the power assembly includes a protective box fixedly connected to the outer wall of the fan casing away from the dustproof net, a working motor is arranged in the protective box, the working shaft passes through the fan casing and the protective box, and the output end of the working motor is fixedly connected to the working shaft.

[0011] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: a rotating handle is fixedly connected to the working rotating rod, the rotating handle is arranged in a disc shape, and the rotating handle and the working rotating rod are arranged in coordination.

[0012] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: the working vibration block is made of rubber material, and one end of the working vibration block is matched with a dustproof net.

[0013] The advantages of the utility model are: through the cooperation of the fan housing, the working shaft, the dust screen, the working blades, the supporting pad, the working column, the working turntable, the working protrusion, the working spring, and the working vibration block, when the working vibration block continuously vibrates the dust screen, the dust adhering to the surface of the dust screen can be shaken off, thereby achieving the effect of quickly cleaning the dust. Through the working rotating rod, the first bevel gear, the second bevel gear, the mounting plate, the mounting bolts, and the working motor, the staff only needs to rotate the working rotating rod to drive the working vibration block to vibrate by transmission, and the operation is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of the front structure of a centrifugal fan for brushless motor heat dissipation based on CAE simulation proposed by the utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the rear view structure of a centrifugal fan for brushless motor heat dissipation based on CAE simulation proposed by the utility model;

[0016] Figure 3 A three-dimensional schematic diagram of the fan housing structure of a centrifugal fan for brushless motor heat dissipation based on CAE simulation proposed by the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0018] In the figure: 1 fan housing, 2 working shaft, 3 dust screen, 4 working blades, 5 support pads, 6 working columns, 7 working turntable, 8 working protrusions, 9 working springs, 10 working vibration blocks, 11 working rotating rods, 12 bevel gear 1, 13 bevel gear 2, 14 mounting plate, 15 mounting bolts, 16 working motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] like Figure 1-Figure 4 As shown, a centrifugal fan for brushless motor heat dissipation based on CAE simulation comprises: a fan casing 1, the fan casing 1 is connected with a working shaft 2 through a power assembly, the power assembly comprises a protection box fixedly connected to the outer wall of the fan casing 1 on the side away from the dustproof net 3, a working motor 16 is arranged in the protection box, the protection box ensures that the working motor 16 will not be disturbed when working, and the protection box is provided with air vents to dissipate heat for the working motor 16, the working shaft 2 runs through the fan casing 1 and the protection box, the output end of the working motor 16 is fixedly connected to the working shaft 2, so that the working motor 16 can drive the working shaft 2 to rotate when working, a dustproof net 3 is also provided in the fan casing 1, the dustproof net 3 can prevent dust in the air from entering the inside of the fan casing 1 during the heat dissipation process, and a working fan blade 4 is fixedly connected to the end of the working shaft 2 close to the dustproof net 3, and the working shaft 2 can drive the working fan blade 4 to rotate, thereby The hot air is discharged into the fan casing 1; two vibration components, the vibration component includes a supporting pad 5 fixedly connected to the inner side wall of the fan casing 1, a working column 6 is rotatably connected to the supporting pad 5, a working turntable 7 is fixedly connected to the working column 6, the working column 6 is arranged to penetrate the working turntable 7, a plurality of working protrusions 8 are fixedly connected to the working turntable 7, and the plurality of working protrusions 8 are all arranged in a hemispherical shape, a working spring 9 is also fixedly connected to the supporting pad 5, and a working vibration block 10 is fixedly connected to one end of the working spring 9 away from the supporting pad 5, and the plurality of working protrusions 8 are all arranged in cooperation with the working vibration block 10. When the working turntable 7 rotates, the plurality of working protrusions 8 will continue to contact the working vibration block 10 at a high frequency, and form a vibration effect on the dustproof net 3 under the elastic force of the working spring 9, thereby shaking off the dust. The working vibration block 10 is made of rubber, and one end of the working vibration block 10 is arranged in cooperation with the dustproof net 3 to avoid damage to the dustproof net 3.

[0021] A transmission assembly is also provided in the fan casing 1, and the transmission assembly includes a working rotating rod 11 rotatably connected to the fan casing 1. One end of the working rotating rod 11 passes through the fan casing 1, and a rotating handle is fixedly connected to the working rotating rod 11. The rotating handle is arranged in a disc shape, and the rotating handle and the working rotating rod 11 are arranged in cooperation with each other, which makes it more convenient for the staff to rotate the working rotating rod 11. Two bevel gears 12 are fixedly connected to the working rotating rod 11, and one end of the two working columns 6 away from the supporting pad 5 is fixedly connected to the bevel gear 2 13. The two bevel gears 12 are respectively meshed with the two bevel gears 2 13, so that when the working rotating rod 11 is rotated, the working column 6 can be driven to rotate through gear transmission. A mounting assembly is also provided on the fan casing 1, and the mounting assembly includes a mounting plate 14 fixedly connected to the outer wall of the fan casing 1, and a plurality of bolt holes are provided on the mounting plate 14, and mounting bolts 15 are provided in the plurality of bolt holes. The plurality of mounting bolts 15 are respectively arranged in cooperation with the plurality of bolt holes, so that the centrifugal fan can be accurately and stably installed around the brushless motor.

[0022] During use, the staff first uses the mounting plate 14 and the mounting bolts 15 to install the fan housing 1 around the brushless motor, and starts the working motor 16, so that the working shaft 2 fixedly connected to the output end of the working motor 16 starts to rotate, thereby driving the working fan blades 4 to rotate, so that the heat generated by the brushless motor enters the fan housing 1 with the air flow and is discharged from the outlet, thereby realizing air cooling of the brushless motor; when a lot of dust adheres to the dustproof net 3 and affects the heat dissipation effect, the staff first turns off the working motor 16, and then continues to rotate the working rotating rod 11 so that the working rotating rod 11 fixedly connected to the working rotating rod 11 Bevel gear 1 12 starts to rotate, and due to the characteristics of gear meshing, bevel gear 2 13 also starts to rotate, thereby driving the working column 6 to rotate, so that the working turntable 7 fixedly connected to the working column 6 rotates, and at this time, the multiple working protrusions 8 on the working turntable 7 will continue to release from the working vibration block 10 at a high frequency, and then form a continuous vibration effect on the dustproof net 3 with the cooperation of the working spring 9, so that the dust on the surface of the dustproof net 3 is shaken off, and then the staff only needs to simply clean the shaken dust. After the cleaning is completed, the staff only needs to start the working motor 16 again to continue the heat dissipation work.

Claims

1. A centrifugal fan for brushless motor heat dissipation based on CAE simulation, characterized in that: include: A fan housing (1), wherein the fan housing (1) is connected to a working shaft (2) via a power assembly, a dust screen (3) is further provided in the fan housing (1), and a working blade (4) is fixedly connected to one end of the working shaft (2) close to the dust screen (3); two vibration assemblies, wherein the vibration assembly comprises a support pad (5) fixedly connected to the inner side wall of the fan housing (1), a working column (6) being rotatably connected to the support pad (5), a working turntable (7) being fixedly connected to the working column (6), the working turntable (7) being arranged through the working turntable (7), a plurality of working protrusions (8) being fixedly connected to the working turntable (7), the plurality of working protrusions (8) being all arranged in a hemispherical shape, a working spring (9) being further fixedly connected to the support pad (5), a working spring (9) being fixedly connected to one end of the working spring (9) away from the support pad (5), the plurality of working protrusions (8) being arranged in cooperation with the working vibrating block (10), and a transmission assembly is further provided in the fan housing (1).

2. A centrifugal fan for brushless motor heat dissipation based on CAE simulation according to claim 1, characterized in that: The transmission assembly comprises a working rotating rod (11) rotatably connected to the fan housing (1), one end of the working rotating rod (11) passing through the fan housing (1), two bevel gears (12) being fixedly connected to the working rotating rod (11), one end of the two working columns (6) away from the supporting pad (5) being fixedly connected to bevel gears (13), the two bevel gears (12) being meshed with the two bevel gears (13) respectively, and a mounting assembly is also provided on the fan housing (1).

3. A centrifugal fan for brushless motor heat dissipation based on CAE simulation according to claim 2, characterized in that: The mounting assembly comprises a mounting plate (14) fixedly connected to the outer wall of the fan housing (1), the mounting plate (14) being provided with a plurality of bolt holes, each of the plurality of bolt holes being provided with a mounting bolt (15), and the plurality of mounting bolts (15) being respectively arranged in cooperation with the plurality of bolt holes.

4. The centrifugal fan for brushless motor heat dissipation based on CAE simulation according to claim 1, characterized in that: The power assembly comprises a protective box fixedly connected to the outer wall of the fan housing (1) on a side away from the dust screen (3), a working motor (16) is arranged in the protective box, the working shaft (2) penetrates the fan housing (1) and the protective box, and the output end of the working motor (16) is fixedly connected to the working shaft (2).

5. The centrifugal fan for brushless motor heat dissipation based on CAE simulation according to claim 2, characterized in that: A rotating handle is fixedly connected to the working rotating rod (11); the rotating handle is arranged in a disc shape; the rotating handle and the working rotating rod (11) are arranged in coordination.

6. The centrifugal fan for brushless motor heat dissipation based on CAE simulation according to claim 1, characterized in that: The working vibration block (10) is made of rubber material, and one end of the working vibration block (10) is arranged in cooperation with the dustproof net (3).

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