CN212250618U

CN212250618U - Noise interference type mixed flow fan

Info

Publication number: CN212250618U
Application number: CN202020358943.2U
Authority: CN
Inventors: 章烨
Original assignee: Zhejiang Qili Hvac Equipment Co ltd
Current assignee: Zhejiang Qili Hvac Equipment Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-12-29
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a noise interference formula mixed flow fan, including the fan shell, fan shell one side is equipped with the air intake, and the fan shell upper end is equipped with the air outlet, and air outlet department is provided with the amortization pad, the inside wind wheel that is provided with of fan shell, the wind wheel internal stability has set firmly the fixed plate, and the welding of fixed plate upper end has the sound insulation shell, and the sound insulation shell inner wall has set firmly inhales the sound cotton, inhales the cotton inside motor that is provided with of sound, and the welding has the pivot on the output shaft of motor, and pivot one end has set firmly the impeller, and fan. The utility model discloses an inhale the noise that sound cotton and sound-proof shell have reduced the motor and sent, noise when the amortization pad has reduced the fan and discharges, when the fan when vibrating, the inside buffer gear of base has reduced the vibration degree of fan to make the more stable of fan operation.

Description

Noise interference type mixed flow fan

Technical Field

The utility model relates to a fan equipment field, in particular to noise jamming formula mixed flow fan.

Background

The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and the principle of the centrifugal fan is that the gas is accelerated by utilizing an impeller rotating at a high speed according to the principle that kinetic energy is converted into potential energy, and then the speed is reduced and the flow direction is adapted, so that the kinetic energy is converted into the potential energy. Centrifugal fans are widely used in the fields of factories, mines, tunnels, cooling towers, vehicles, ships, buildings and the like. However, the existing centrifugal fan generates certain noise in the using process and affects the surrounding environment, and the existing centrifugal fan vibrates greatly in the using process and finally affects the service life of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a noise jamming formula mixed flow fan has the shock attenuation and falls the advantage of making an uproar.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides a noise jamming formula mixed flow fan, includes the fan shell, fan shell one side is equipped with the air intake, the fan shell upper end is equipped with the air outlet, air outlet department is provided with the amortization pad, the inside wind wheel that is provided with of fan shell, the fixed plate has set firmly in the wind wheel, the welding of fixed plate upper end has the sound insulation shell, sound insulation shell inner wall has set firmly inhales the sound cotton, it is cotton inside to be provided with the motor to inhale the sound, the motor with the fixed plate is fixed connection, the welding has the pivot on the output shaft of motor, the pivot is kept away from the one end of motor has set firmly the impeller, the fan shell lower extreme has set firmly the base.

Adopt above-mentioned technical scheme, when the motor of fan starts and sends the noise, through inhaling the noise that sound cotton and soundproof housing reduced the motor and sent, amortization pad on the fan has reduced fan exhaust noise, and when the vibration of fan shell, the inside buffer gear of base has reduced the vibration degree of fan to make the more stable of fan operation.

Preferably, the sound-absorbing cotton and the sound-insulating shell are both provided with heat dissipation nets, and the two heat dissipation nets are fixedly connected with the sound-absorbing cotton and the sound-insulating shell respectively.

By adopting the technical scheme, when the motor emits a large amount of heat, the heat is discharged into the fan through the two radiating nets.

Preferably, a cushion pad is arranged outside the base, and the cushion pad is made of rubber.

Adopt above-mentioned technical scheme, when fan shell vibration, the blotter has played the effect of buffering, and the blotter that rubber is constituteed more has elasticity, the great increase cushioning effect of ability.

Preferably, buffer gear includes two buffer rods, two the buffer rod all is located fan housing lower extreme, and with fan housing is fixed connection, two the buffer rod all is provided with the set casing outward, two the slider is all welded to buffer rod lower extreme both sides, the spout has been seted up to set casing inner wall both sides, the slider with the spout is sliding connection, two the spring has all been welded to the buffer rod bottom, two the rubber pad has all been welded to set casing inner wall bottom, the spring with the rubber pad is fixed connection.

By adopting the technical scheme, when the fan shell vibrates, the vibrating force drives the two buffer rods to move downwards, the two buffer rods respectively drive the sliding block to slide downwards in the sliding groove when moving downwards, the spring is extruded when the two buffer rods move downwards, part of vibrating force is buffered by the spring, and the rest vibrating force is buffered by the rubber pad below the spring.

Preferably, the fan shell is coated with an anti-rust layer.

By adopting the technical scheme, the anti-rust layer is formed by galvanizing, and the galvanized layer prevents the fan shell from being corroded by the outside atmosphere and enables the fan shell to be more attractive.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a sectional view of the embodiment;

fig. 3 is a sectional view of a damper mechanism according to the embodiment.

Reference numerals: 1. a fan housing; 2. an air inlet; 3. a base; 4. an air outlet; 5. a sound-deadening pad; 6. a fixing plate; 7. a wind wheel; 8. a sound-insulating shell; 9. a heat-dissipating web; 10. a buffer mechanism; 101. a buffer rod; 102. a slider; 103. a chute; 104. a spring; 105. a rubber pad; 106. and (4) fixing the shell.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

A noise interference type mixed flow fan is shown in figures 1 to 3 and comprises a fan shell 1, wherein the fan shell 1 is coated with an anti-rust layer, the anti-rust layer is formed by galvanizing, and the galvanized layer prevents the fan shell 1 from being corroded by external atmosphere and enables the fan shell 1 to be more attractive. One side of the fan shell 1 is provided with an air inlet 2, the upper end of the fan shell 1 is provided with an air outlet 4, the air outlet 4 is provided with a silencing pad 5, and the silencing pad 5 reduces the noise discharged by the fan.

The inside wind wheel 7 that is provided with of fan housing 1, the fixed plate 6 has set firmly in the wind wheel 7, and the welding of 6 upper ends of fixed plate has

soundproof shell

8, and 8 inner walls of soundproof shell have set firmly and have inhaled the sound cotton, inhale the cotton inside motor that is provided with of sound, and the motor is fixed connection with fixed plate 6, inhales and all is equipped with radiator-grid 9 on sound cotton and the soundproof shell 8, and two radiator-grid 9 are fixed connection with inhaling the sound cotton respectively and soundproof shell 8. When the motor emits a large amount of heat, the heat is discharged into the fan through the two heat dissipation nets 9.

The welding has the pivot on the output shaft of motor, and the one end that the motor was kept away from in the pivot has set firmly the impeller, and 1 lower extreme of fan shell has set firmly base 3, and base 3 is provided with the blotter outward, and the blotter comprises rubber. When fan shell 1 vibrates, the blotter has played the effect of buffering, and the blotter that the rubber is constituteed more has elasticity, the great increase cushioning effect of ability.

Inside buffer gear 10 that is provided with of base 3, buffer gear 10 includes two buffer beam 101, two buffer beam 101 all are located 1 lower extreme of fan shell, and be fixed connection with fan shell 1, two buffer beam 101 all are provided with set casing 106 outward, slider 102 is all welded to two buffer beam 101 lower extreme both sides, spout 103 has been seted up to set casing 106 inner wall both sides, slider 102 is sliding connection with spout 103, spring 104 has all been welded to two buffer beam 101 bottoms, rubber pad 105 has all been welded to two set casing 106 inner wall bottoms, spring 104 is fixed connection with rubber pad 105. When the fan housing 1 vibrates, the vibrating force drives the two buffer rods 101 to move downwards, the two buffer rods 101 respectively drive the sliding block 102 to slide downwards in the sliding groove 103 when moving downwards, the two buffer rods 101 also enable the spring 104 to be extruded when moving downwards, the spring 104 buffers a part of vibrating force, and the rubber pad 105 below the spring 104 buffers the rest vibrating force.

When the motor of fan starts and sends the noise, through inhaling the noise that sound cotton and sound-proof shell 8 reduced the motor and sent, amortization pad 5 on the fan has reduced fan exhaust noise, and when fan shell 1 vibrated, the inside buffer gear 10 of base 3 had reduced the vibration degree of fan to make the more stable of fan operation.

Claims

1. A noise interference type mixed flow fan is characterized by comprising a fan shell (1), an air inlet (2) is arranged on one side of the fan shell (1), an air outlet (4) is arranged at the upper end of the fan shell (1), a silencing pad (5) is arranged at the air outlet (4), a wind wheel (7) is arranged inside the fan shell (1), a fixed plate (6) is fixedly arranged in the wind wheel (7), a sound insulation shell (8) is welded at the upper end of the fixed plate (6), the inner wall of the sound insulation shell (8) is fixedly provided with sound absorption cotton, a motor is arranged in the sound absorption cotton, the motor is fixedly connected with the fixed plate (6), a rotating shaft is welded on an output shaft of the motor, the one end that the motor was kept away from to the pivot has set firmly the impeller, fan shell (1) lower extreme has set firmly base (3), base (3) inside is provided with buffer gear (10).

2. The mixed flow fan of claim 1, wherein the sound-absorbing cotton and the sound-insulating shell (8) are both provided with heat-dissipating nets (9), and the two heat-dissipating nets (9) are respectively and fixedly connected with the sound-absorbing cotton and the sound-insulating shell (8).

3. A noise-disturbing mixed-flow fan according to claim 2, characterized in that a buffer is provided outside the base (3), said buffer being made of rubber.

4. The noise interference type mixed flow fan according to claim 3, wherein the buffering mechanism (10) comprises two buffering rods (101), the two buffering rods (101) are both located at the lower end of the fan housing (1) and are fixedly connected with the fan housing (1), a fixed shell (106) is arranged outside each buffering rod (101), sliding blocks (102) are welded on both sides of the lower end of each buffering rod (101), sliding grooves (103) are formed in both sides of the inner wall of the fixed shell (106), the sliding blocks (102) are in sliding connection with the sliding grooves (103), springs (104) are welded at the bottom ends of the buffering rods (101), rubber pads (105) are welded at the bottom ends of the inner wall of the fixed shell (106), and the springs (104) are fixedly connected with the rubber pads (105).

5. A noise disturbing mixed flow fan according to claim 4, characterized in that the fan housing (1) is coated with a rust-proof layer.