CN214366824U

CN214366824U - Fan shock-absorbing noise-reducing structure

Info

Publication number: CN214366824U
Application number: CN202120249871.2U
Authority: CN
Inventors: 陈午
Original assignee: Shenzhen Eblee Technology Co ltd
Current assignee: Shenzhen Eblee Technology Co ltd
Priority date: 2021-01-28
Filing date: 2021-01-28
Publication date: 2021-10-08
Anticipated expiration: 2031-01-28

Abstract

The utility model provides a fan vibration/noise reduction sound structure, include: wind channel, wind wheel, magnetic ring, brushless motor, shock attenuation soft rubber ring and motor support, the one end of motor support is passed through the shock attenuation soft rubber ring is installed in the mounting hole in wind channel, the other end of motor support is installed brushless motor, the magnetic ring is installed in the mounting hole of wind wheel just the magnetic ring is located brushless motor's the outside, the wind wheel pass through the buckle with motor support the other end pivotally connect. The utility model discloses vibrations when 4 absorbent structure operation of ring are glued to the built-in shock attenuation of accessible to reduce the noise that the resonance of installing support leads to, play the effect that the absorption vibrations reduce the resonance noise.

Description

Fan shock-absorbing noise-reducing structure

Technical Field

The utility model relates to a fan field, in particular to fan vibration/noise reduction sound structure.

Background

In the prior art, when the brushless direct current motor structure works, a fan blade product can slightly shake due to the characteristic of magnetic pole commutation. When the rotating speed is high, the vibration is transmitted to the mounting bracket through the motor, the fan blade rotating shaft and the like to form resonance, so that the noise is larger, and particularly when a turbofan structure is adopted, the box-type air channel forms a resonance cavity to further amplify the vibration noise.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fan shock attenuation noise reduction structure to solve at least one above-mentioned technical problem.

In order to solve the above problem, as an aspect of the present invention, there is provided a fan noise reduction and damping structure, including: wind channel, wind wheel, magnetic ring, brushless motor, shock attenuation soft rubber ring and motor support, the one end of motor support is passed through the shock attenuation soft rubber ring is installed in the mounting hole in wind channel, the other end of motor support is installed brushless motor, the magnetic ring is installed in the mounting hole of wind wheel just the magnetic ring is located brushless motor's the outside, the wind wheel pass through the buckle with motor support the other end pivotally connect.

Preferably, one end of the buckle extends into a central hole of the motor support, and a copper sleeve is arranged between the buckle and the inner wall of the central hole.

Preferably, the air duct includes a first air duct and a second air duct connected to each other.

Preferably, an annular groove for connecting with the air duct is formed on the circumference of the soft damping rubber ring 4.

Preferably, a reverse-buckling structure is arranged at a bayonet of the motor bracket 5, and an opening gasket is arranged at the reverse-buckling structure.

Since the technical scheme is used, the utility model discloses vibrations when 4 absorbent structure operation of ring are glued to the built-in shock attenuation of accessible to reduce the noise that the resonance of installing support leads to, play the effect that the absorption vibrations reduce the resonance noise.

Drawings

Fig. 1 schematically shows a perspective view of the present invention;

figure 2 schematically shows an exploded view of the invention;

fig. 3 schematically shows a front view of the invention;

FIG. 4 schematically illustrates a cross-sectional view A-A of FIG. 3;

FIG. 5 schematically illustrates a front view of the cushion gum ring;

FIG. 6 schematically illustrates a side view of a cushion gum ring;

FIG. 7 schematically illustrates a perspective view of a cushion gum ring;

figure 8 schematically shows a cross-sectional view of a cushion gum ring.

Reference numbers in the figures: 1. a wind wheel; 2. a magnetic ring; 3. a brushless motor; 4. a shock-absorbing soft rubber ring; 5. a motor bracket; 6. buckling; 7. a copper sleeve; 8. a first air duct; 9. and a second air duct.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

The utility model discloses an aspect provides a fan vibration/noise reduction sound structure, include: wind channel, wind wheel 1, magnetic ring 2, brushless motor 3, shock attenuation soft glue ring 4 and motor support 5, the one end of motor support 5 is passed through shock attenuation soft glue ring 4 is installed in the mounting hole in wind channel, the other end of motor support 5 is installed brushless motor 3, magnetic ring 2 is installed in the mounting hole of wind wheel 1 just magnetic ring 2 is located brushless motor 3's the outside, wind wheel 1 through buckle 6 with motor support 5 the other end pivotally connect.

Preferably, one end of the buckle 6 extends into a central hole of the motor bracket 5, and a copper sleeve 7 is arranged between the buckle 6 and the inner wall of the central hole.

Preferably, the air duct includes a first air duct 8 and a second air duct 9 connected to each other.

Preferably, an annular groove for connecting with the air duct is formed on the circumference of the soft damping rubber ring 4. Preferably, a reverse-buckling structure is arranged at a bayonet of the motor bracket 5, and an opening gasket is arranged at the reverse-buckling structure. The utility model discloses an innovation point lies in the connected mode of rubber cushion, and its flexible coupling structure that forms through shock attenuation flexible glue ring 4, for example the cyclic annular slot on the shock attenuation flexible glue ring 4 is connected with the wind channel, then inserts the axle sleeve again, has a back-off structure in the bayonet socket part of axle sleeve, and an opening gasket in addition guarantees not to drop to simple to operate does not need the screw, and the cushion adopts spoke type shock-absorbing structure, further reduces the vibrations energy of transmission.

Since the technical scheme is used, the utility model discloses vibrations when 4 absorbent structure operation of ring are glued to the built-in shock attenuation of accessible to reduce the noise that the resonance of installing support leads to, play the effect that the absorption vibrations reduce the resonance noise. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fan vibration/noise reduction sound structure which characterized in that includes: wind channel, wind wheel (1), magnetic ring (2), brushless motor (3), shock attenuation soft rubber ring (4) and motor support (5), the one end of motor support (5) is passed through shock attenuation soft rubber ring (4) are installed in the mounting hole in wind channel, install the other end of motor support (5) brushless motor (3), install magnetic ring (2) just in the mounting hole of wind wheel (1) magnetic ring (2) are located the outside of brushless motor (3), wind wheel (1) through buckle (6) with motor support (5) but other end pivot ground is connected.

2. The fan shock-absorbing noise-reducing structure of claim 1, wherein one end of the buckle (6) extends into a central hole of the motor bracket (5), and a copper sleeve (7) is arranged between the buckle (6) and the inner wall of the central hole.

3. The fan damping and noise reducing structure according to claim 1, wherein the air duct comprises a first air duct (8) and a second air duct (9) connected to each other.

4. The fan shock-absorbing and noise-reducing structure as claimed in claim 2, wherein the soft damping rubber ring (4) is circumferentially formed with an annular groove for connecting with the air duct.

5. The fan shock absorption and noise reduction structure as claimed in claim 4, wherein an inverted structure is provided at the bayonet of the motor bracket (5), and an open gasket is mounted at the inverted structure.