CN216478068U

CN216478068U - High-efficiency low-noise air conditioner fan

Info

Publication number: CN216478068U
Application number: CN202123430841.0U
Authority: CN
Inventors: 潘旭光; 吕奔
Original assignee: Zhejiang Sanxin Technology Co ltd
Current assignee: Zhejiang Sanxin Technology Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-05-10
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a high-efficient low noise air conditioner fan, including casing, motor and impeller, the casing is three layer construction, including the sound inlayer of inhaling that is equipped with the hole, sound insulation middle level and metal skin, the hole rate of inhaling the sound inlayer is 10-30%. Noise enters the sound insulation middle layer from the hole, the sound insulation middle layer absorbs noise, and therefore noise is reduced, and the outer layer plays a role in protecting the motor and the impeller. When the hole rate of the sound-absorbing inner layer is 10-30%, the sound-absorbing effect is better, and the hole rate is preferably 20%.

Description

High-efficiency low-noise air conditioner fan

Technical Field

The utility model belongs to the refrigeration field, concretely relates to high-efficient low noise air conditioner fan.

Background

An air conditioner fan is a mechanical device for transferring air, and is generally installed outdoors. The main noise of the volute type air conditioning fan used by the existing air conditioning system is vortex noise. Generally, the higher the power of the fan is, the faster the rotating speed is, the larger the air volume is, and the larger the noise is, so that an efficient low-noise air conditioner fan is needed, and the noise is reduced while the power of the high fan is kept.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-efficient low noise air conditioner fan through the three-layer shell structure noise absorption to can not influence fan power.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the high-efficiency low-noise air-conditioning fan comprises a shell, a motor and an impeller, wherein the shell is of a three-layer structure and comprises a sound-absorbing inner layer provided with holes, a sound-insulating middle layer and a metal outer layer, and the hole rate of the sound-absorbing inner layer is 10-30%.

Noise enters the sound insulation middle layer from the hole, and the sound insulation middle layer absorbs the noise, so that the noise is reduced, and the outer layer plays a role in protecting the motor and the impeller. When the hole rate of the sound-absorbing inner layer is 10-30%, the sound-absorbing effect is better, and the hole rate is preferably 20%.

Further, the casing is detachable construction, and the casing includes casing body and casing protecgulum, and the opening part of casing body encloses there is the retainer plate, and the retainer plate passes through the bolt fastening with the casing protecgulum.

The detachable casing is convenient for the maintenance of motor and impeller, and the retainer plate is established and can not influence the syllable-dividing effect of casing body at the opening part of casing body.

Furthermore, the sound insulation middle layer is made of sound insulation cotton or sound insulation polyurethane.

Soundproof cotton and soundproof polyurethane have good soundproof effect, and are also convenient to install and take out.

Furthermore, a flow guide seat is arranged at the air inlet of the shell, and the flow guide surface of the flow guide seat is inclined upwards.

The flow guide surface of the flow guide seat enables air to flow stably, the air enters the wind wheel more smoothly, and eddy noise is further reduced.

Further, the bottom of casing is installed on the fixing base, and the fixing base is equipped with damper.

The fixing seat provides support for the shell, and the shock absorption assembly slows down vibration of the shell caused by noise.

Furthermore, the damping assembly comprises an extension spring, pull rings are fixed on the outer layer of the metal and the fixed seat, one end of the extension spring is fixed on the pull ring of the outer layer of the metal, and the other end of the extension spring is fixed on the pull ring of the fixed seat.

When the shell vibrates due to noise, the extension spring plays a certain buffering role on the shell to slow down the vibration of the shell, and the possibility of vibration noise of the shell is further reduced. And because the pull ring is fixed on the metal outer layer, the sound-absorbing inner layer and the sound-insulating middle layer can not be influenced, and the sound-absorbing effect can not be influenced.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

noise enters the sound insulation middle layer from the hole, and the sound insulation middle layer absorbs the noise, so that the noise is reduced, and the outer layer plays a role in protecting the motor and the impeller. When the hole rate of the sound-absorbing inner layer is 10-30%, the sound-absorbing effect is better, and the hole rate is preferably 20%. The detachable casing is convenient for the maintenance of motor and impeller, and the retainer plate is established and can not influence the syllable-dividing effect of casing body at the opening part of casing body. Soundproof cotton and soundproof polyurethane have good soundproof effect, and are also convenient to install and take out. The flow guide surface of the flow guide seat enables air to flow stably, the air enters the wind wheel more smoothly, and eddy noise is further reduced. The fixing base provides support for the casing, and shock-absorbing component slows down the vibrations that the casing leads to because of the noise. When the shell vibrates due to noise, the extension spring plays a certain buffering role on the shell to slow down the vibration of the shell, and the possibility of vibration noise of the shell is further reduced. And because the pull ring is fixed on the metal outer layer, the sound-absorbing inner layer and the sound-insulating middle layer can not be influenced, and the sound-absorbing effect can not be influenced.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

FIG. 1 is a schematic structural view of a medium-efficiency low-noise air conditioner fan of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

figure 3 is a cross-sectional view of a three-layer shell.

Detailed Description

As shown in fig. 1 to 3, the high-efficiency low-noise air-conditioning fan comprises a casing, a motor 4 and an impeller 5, wherein the casing is of a three-layer structure and comprises a sound-absorbing inner layer 1 provided with holes 13, a sound-insulating middle layer 2 and a metal outer layer 3, and the hole rate of the sound-absorbing inner layer 1 is 10-30%.

Noise enters the sound insulation middle layer 2 from the hole 13, and the sound insulation middle layer 2 absorbs noise, so that the noise is reduced, and the outer layer plays a role in protecting the motor 4 and the impeller 5. When the hole rate of the sound-absorbing inner layer 1 is 10-30%, the sound-absorbing effect is better, and the hole rate is preferably 20%.

The casing is detachable construction, and the casing includes casing body 5 and casing protecgulum (not drawn in the picture), and casing body 5's opening part encloses has retainer plate 6, and retainer plate 6 is equipped with mounting hole 7, and the maintenance of motor 4 and impeller 5 of being convenient for of bolt fastening detachable casing is passed through with the casing protecgulum to mounting hole 7, and retainer plate 6 establishes and can not influence casing body 5's syllable-dividing effect at casing body 5's opening part.

The sound insulation middle layer 2 is made of sound insulation cotton or sound insulation polyurethane. Soundproof cotton and soundproof polyurethane have good soundproof effect, and are also convenient to install and take out. The shell air inlet 8 is provided with a flow guide seat 9, and the flow guide surface of the flow guide seat 9 is inclined upwards. The flow guide surface of the flow guide seat 9 enables air to flow stably, and the air can enter the wind wheel more smoothly, so that the vortex noise is further reduced.

The bottom of casing is installed on fixing base 10, and fixing base 10 is equipped with damper. The holder 10 provides support for the housing and the damping assembly dampens vibrations of the housing caused by noise. The shock absorption assembly comprises an extension spring 11, pull rings 12 are fixed on the outer metal layer 3 and the fixing seat 10, one end of the extension spring 11 is fixed on the pull ring 12 of the outer metal layer 3, and the other end of the extension spring 11 is fixed on the pull ring 12 of the fixing seat 10.

When the housing vibrates due to noise, the extension spring 11 has a certain buffering effect on the housing, so that the vibration of the housing is slowed down, and the possibility of vibration noise of the housing is further reduced. And because the pull ring 12 is fixed on the metal outer layer 3, the sound-absorbing inner layer 1 and the sound-insulating middle layer 2 can not be influenced, and the sound-absorbing effect can not be influenced.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. High-efficient low noise air conditioner fan, including casing, motor and impeller, its characterized in that: the shell is of a three-layer structure and comprises a sound-absorbing inner layer provided with holes, a sound-insulating middle layer and a metal outer layer, wherein the hole rate of the sound-absorbing inner layer is 10-30%.

2. The high efficiency low noise air conditioner fan of claim 1, wherein: the casing is detachable structure, the casing includes casing body and casing protecgulum, the opening part of casing body encloses there is the retainer plate, the retainer plate with the casing protecgulum passes through the bolt fastening.

3. The high efficiency low noise air conditioner fan of claim 1, wherein: the sound insulation middle layer is made of sound insulation cotton or sound insulation polyurethane.

4. The high efficiency low noise air conditioner fan of claim 1, wherein: the shell air inlet department is equipped with the water conservancy diversion seat, the water conservancy diversion face of water conservancy diversion seat is the tilt up.

5. The high efficiency low noise air conditioner fan of claim 1, wherein: the bottom of casing is installed on the fixing base, the fixing base is equipped with damper.

6. The efficient low-noise air conditioner fan as claimed in claim 5, wherein: the damping assembly comprises an extension spring, pull rings are fixed on the outer metal layer and the fixed seat, one end of the extension spring is fixed on the pull ring of the outer metal layer, and the other end of the extension spring is fixed on the pull ring of the fixed seat.