CN218760504U

CN218760504U - Low-noise fan

Info

Publication number: CN218760504U
Application number: CN202222219933.2U
Authority: CN
Inventors: 曾贵广
Original assignee: Dongguan Weikeda Purification Equipment Co ltd
Current assignee: Dongguan Weikeda Purification Equipment Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-03-28
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a fan that noise is little, including casing and sound-proof housing, the intermediate position department of the inside one end of casing installs the bearing, and the internally mounted of bearing has first pivot, two sets of impellers are installed in the outside of first pivot, and the outside of first pivot installs first helical gear, the internally mounted of casing has the second dust screen, and the intermediate position department at casing top installs the motor. The utility model discloses install bearing, first pivot, first helical gear, second helical gear and second pivot, during the use, the motor drives the second helical gear through the second pivot and rotates for the second helical gear drives first pivot through first helical gear and rotates, can drive the impeller and rotate, and the motor is installed in the outside of casing, and gas can not directly blow to the motor on, is favorable to prolonging the life of motor.

Description

Low-noise fan

Technical Field

The utility model relates to a fan equipment technical field specifically is a fan that noise is little.

Background

The fan is a machine for raising the pressure of gas and discharging the gas by means of mechanical energy input, and is a driven fluid machine, and is widely used for ventilation, dust exhaust and cooling of factories, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial furnaces, and cooling and ventilation of air conditioning equipment and household electrical equipment.

The fan is in the use, the motor drives the impeller and rotates, motor self work produces the noise, and gaseous in-process through the casing, gaseous and casing friction also can produce the noise, and current fan sound insulation effect is relatively poor, the noise of use is big, and motor direct mount is inside the tuber pipe, when external gas humidity is higher, the moisture directly blows in inside the motor easily for the motor short circuit damages easily, consequently, need a fan that the noise is little urgently to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan that the noise is little to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fan that noise is little, includes casing and sound-proof housing, the intermediate position department of the inside one end of casing installs the bearing, and the internally mounted of bearing has first pivot, two sets of impellers are installed in the outside of first pivot, and the outside of first pivot installs first helical gear, the internally mounted of casing has the second dust screen, and the intermediate position department at casing top installs the motor, the sound-proof housing is installed in the outside of casing, and the inboard of sound-proof housing evenly is provided with sound collection groove, the stabilizer blade is installed to the bottom of casing.

Preferably, the output end of the motor is provided with a second rotating shaft, the second rotating shaft penetrates through the shell and extends to the inside of the shell, and the bottom of the second rotating shaft is provided with a second bevel gear meshed with the first bevel gear.

Preferably, the inner sides of the sound collection grooves are provided with second sound absorption cotton layers.

Preferably, an exhaust pipe is installed at one end, close to the bearing, of the top of the sound-proof housing, and a sealing cover is installed at the top of the exhaust pipe.

Preferably, the one end that the casing is close to the bearing evenly is provided with the air inlet, and the inside of air inlet all installs first dust screen.

Preferably, an air outlet pipe is installed at one end, far away from the bearing, of the shell.

Preferably, a protective shell is installed in the middle of the top of the shell, and a first sound absorption cotton layer is arranged on the inner side of the protective shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when the fan is used, the motor drives the second helical gear to rotate through the second rotating shaft, so that the second helical gear drives the first rotating shaft to rotate through the first helical gear, the impeller can be driven to rotate, the motor is arranged outside the shell, gas cannot be directly blown onto the motor, and the service life of the motor is prolonged;

2. the fan with low noise is provided with the protective shell and the first sound-absorbing cotton layer, the protective shell is arranged on the outer side of the motor and can be used for isolating noise generated by the work of the motor, and the noise reduction effect can be further improved by absorbing the noise through the first sound-absorbing cotton layer;

3. the exhaust tube, sealed lid, sound-proof housing and the cotton layer of sound is inhaled to this fan that the noise is little installed, and during the use, the sound-proof housing can completely cut off the noise, and takes the inside gas of sound-proof housing out through the exhaust tube, and reducible sound conduction medium inhales the cotton layer noise absorption of sound through the second, can further improve the noise reduction effect, and the sound insulation effect of device is better, and the noise in use is less.

Drawings

Fig. 1 is a schematic front sectional view of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic side view of the present invention;

fig. 4 is a schematic top view of the present invention.

In the figure: 1. a housing; 2. a first dust screen; 3. a bearing; 4. a first rotating shaft; 5. an air inlet; 6. an exhaust pipe; 7. a sealing cover; 8. a sound-proof housing; 9. a sound collection groove; 10. a support leg; 11. a first helical gear; 12. a second helical gear; 13. a protective housing; 14. a second rotating shaft; 15. a motor; 16. a first sound absorbing cotton layer; 17. an impeller; 18. a second sound absorbing cotton layer; 19. a second dust screen; 20. and an air outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment of: the utility model provides a fan that noise is little, including casing 1 and sound-proof housing 8, the intermediate position department of the inside one end of casing 1 installs bearing 3, and the internally mounted of bearing 3 has first pivot 4, two sets of impellers 17 are installed in the outside of first pivot 4, and first helical gear 11 is installed in the outside of first pivot 4, the internally mounted of casing 1 has second dust screen 19, and the intermediate position department at casing 1 top installs motor 15, here motor 15 model can be Y90S-2, sound-proof housing 8 is installed in the outside of casing 1, and the inboard of sound-proof housing 8 evenly is provided with sound collecting groove 9, stabilizer blade 10 is installed to the bottom of casing 1.

In this implementation:

further, a second rotating shaft 14 is installed at the output end of the motor 15, the second rotating shaft 14 penetrates through the casing 1 and extends to the inside of the casing 1, a second helical gear 12 meshed with the first helical gear 11 is installed at the bottom of the second rotating shaft 14, and the motor 15 drives the second helical gear 12 to rotate through the second rotating shaft 14, so that the second helical gear 12 drives the first rotating shaft 4 to rotate through the first helical gear 11, and the impeller 17 can be driven to rotate.

Furthermore, the inner side of the sound collection groove 9 is provided with a second sound absorption cotton layer 18, and the second sound absorption cotton layer 18 absorbs noise, so that the noise reduction effect can be further improved.

Further, an exhaust pipe 6 is installed at one end of the top of the sound-proof housing 8 close to the bearing 3, a sealing cover 7 is installed at the top of the exhaust pipe 6, and the gas inside the sound-proof housing 8 can be extracted through the exhaust pipe 6.

Further, the one end that casing 1 is close to bearing 3 evenly is provided with air inlet 5, and first dust screen 2 is all installed to the inside of air inlet 5, can prevent that the dust from getting into inside casing 1 through air inlet 5.

Furthermore, an air outlet pipe 20 is installed at one end of the housing 1 far away from the bearing 3, so that the device can be conveniently communicated with an external pipeline.

Further, protective housing 13 is installed to the intermediate position department at casing 1 top, and protective housing 13's inboard is provided with first sound absorbing cotton layer 16, and protective housing 13 installs in the outside of motor 15, can be used to isolated motor 15 work the noise that produces, and through first sound absorbing cotton layer 16 noise absorption, can further improve noise reduction.

The working principle is as follows:

before use, air in the sound insulation cover 8 can be pumped out through the air pumping pipe 6, and then the sealing cover 7 is covered on the air pumping pipe 6;

when the device is used, the device is powered on, the motor 15 drives the second bevel gear 12 to rotate through the second rotating shaft 14, so that the second bevel gear 12 drives the first rotating shaft 4 to rotate through the first bevel gear 11, the impeller 17 can be driven to rotate, external air can enter the shell 1 through the air inlet 5 and can be blown out through the air outlet pipe 20;

in the using process, the protective shell 13 is arranged on the outer side of the motor 15 and can be used for isolating noise generated by the work of the motor 15, and the noise is absorbed by the first sound-absorbing cotton layer 16, so that the noise reduction effect can be further improved;

simultaneously, sound-proof housing 8 can completely cut off the inside noise of casing 1, and takes out 8 inside gas of sound-proof housing through exhaust tube 6, and reducible sound conduction medium inhales the cotton layer 18 noise absorption of sound through the second, can further improve noise reduction, and the sound insulation effect of device is better, and the noise in use is less.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A low-noise fan comprises a shell (1) and a sound-proof cover (8), and is characterized in that: the utility model discloses a motor sound insulation shield, including casing (1), bearing (3), and the internally mounted of bearing (3) has first pivot (4), two sets of impellers (17) are installed in the outside of first pivot (4), and first helical gear (11) are installed in the outside of first pivot (4), the internally mounted of casing (1) has second dust screen (19), and the intermediate position department at casing (1) top installs motor (15), sound-proof housing (8) are installed in the outside of casing (1), and the inboard of sound-proof housing (8) evenly is provided with sound-collecting groove (9), stabilizer blade (10) are installed to the bottom of casing (1).

2. The fan that makes little noise of claim 1, characterized in that: the output end of the motor (15) is provided with a second rotating shaft (14), the second rotating shaft (14) penetrates through the shell (1) and extends to the inside of the shell (1), and the bottom of the second rotating shaft (14) is provided with a second bevel gear (12) meshed with the first bevel gear (11).

3. The fan of claim 1, wherein: and the inner sides of the sound collection grooves (9) are provided with second sound absorption cotton layers (18).

4. The fan that makes little noise of claim 1, characterized in that: exhaust tube (6) is installed to the one end that sound-proof housing (8) top is close to bearing (3), and sealed lid (7) are installed at the top of exhaust tube (6).

5. The fan of claim 1, wherein: one end of the shell (1) close to the bearing (3) is evenly provided with an air inlet (5), and a first dust screen (2) is installed inside the air inlet (5).

6. The fan of claim 1, wherein: an air outlet pipe (20) is installed at one end, far away from the bearing (3), of the shell (1).

7. The fan of claim 1, wherein: protective casing (13) are installed to the intermediate position department at casing (1) top, and protective casing (13)'s inboard is provided with first cotton layer (16) of inhaling sound.