CN212717406U

CN212717406U - Noise-proof device of exhaust fan

Info

Publication number: CN212717406U
Application number: CN202021597136.2U
Authority: CN
Inventors: 张颖
Original assignee: Tianjin Xinrunke Technology Co ltd
Current assignee: Tianjin Xinrunke Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-03-16
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses an exhaust fan noise control device, including the annular shell body, the inboard of annular shell body is provided with the annular interior casing, the inboard of the annular interior casing is provided with the connecting sleeve, the inboard fixed mounting of connecting sleeve has the silence motor, the main shaft end fixedly connected with flabellum of silence motor, the connecting pipe has the cylindricality for hollow body and inboard stopper to inhale the sound cotton, encircle the first small-size muffler of equidistance fixedly connected with on the connecting sleeve. The utility model discloses the connecting pipe each other of annular shell body, annular interior casing, connecting sleeve and silent electric machine has the cylindricality to inhale the sound cotton for hollow body and inboard stopper, conveniently reduces silent electric machine and takes the noise of connecting pipe transmission when the flabellum moves, has the annular to inhale the sound cotton around bonding on the inner wall of annular interior casing simultaneously, strengthens the effect of making an uproar, and the first small-size muffler that encircles equidistance fixed connection on the connecting sleeve is used for reducing the noise that the flabellum was taken to the silent electric machine and produces when rotatory.

Description

Noise-proof device of exhaust fan

Technical Field

The utility model relates to an exhaust fan technical field specifically is an exhaust fan noise control device.

Background

The exhaust fan has the function of exhausting air, generally exhausts the airflow of a space to the outside, exchanges the airflow inside and outside the space, and can also play a role of heat dissipation when being installed in some equipment;

the disadvantages of the general exhaust fan are that: the existing exhaust fan is installed in some equipment and can generate certain noise when running, because some equipment is metal solid, the noise is easy to spread.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an exhaust fan noise control device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an exhaust fan noise control device, includes the annular shell body, the inboard of annular shell body is provided with the annular interior casing, the inboard of the annular interior casing is provided with connecting sleeve, the annular shell body with fixedly connected with connecting pipe between the annular interior casing, simultaneously the annular interior casing with through the same between the connecting sleeve connecting pipe fixed connection, the inboard fixed mounting of connecting sleeve have silent motor and silent motor with through the same between the connecting sleeve the connecting pipe is connected, the main shaft end fixedly connected with flabellum of silent motor, the connecting pipe has the cylindricality for hollow body and inboard stopper to inhale the sound cotton, encircle the first small-size muffler of equidistance fixedly connected with on the connecting sleeve, the equal fixedly connected with connecting block of downside on the annular shell body.

Preferably, an S-shaped bending pipe body is fixedly connected between the connecting block and the annular outer shell.

Preferably, every position department of buckling of S type bending pipe body all fixed mounting has the small-size muffler of second.

Preferably, the S-shaped bent pipe body is made of a hard steel material.

Preferably, annular sound-absorbing cotton is bonded on the inner wall of the annular inner shell in a surrounding mode.

Preferably, the annular outer shell, the annular inner shell and the connecting sleeve are made of light metal materials.

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

1. the annular outer shell, the annular inner shell, the connecting sleeve and the mute motor are fixedly connected with each other through the connecting pipe, the connecting pipe is a hollow body, cylindrical sound-absorbing cotton is filled in the connecting pipe, noise transmitted along the connecting pipe when the mute motor drives the fan blades to run is conveniently reduced, and meanwhile, annular sound-absorbing cotton is bonded on the inner wall of the annular inner shell in a surrounding mode, so that the noise reduction effect is enhanced;

2. the utility model discloses surround the noise that produces when equidistance fixed connection' S first small-size muffler is used for reducing the silence motor area flabellum rotatory on the connecting sleeve to the S type of being connected between downside and the connecting block on the annular housing body is buckled the body and is used for prolonging the time of the noise transmission to connecting block department that produces when whole device moves, and every second small-size muffler of buckling position department of S type body is used for reducing the noise of buckling the body conduction along the S type simultaneously.

Drawings

FIG. 1 is a schematic view of the overall structure of an anti-noise device of an exhaust fan of the present invention;

fig. 2 is a structural diagram of the connection between the silent motor and the annular housing in the noise-proof device of the exhaust fan of the present invention;

fig. 3 is a sectional structure view of a connecting pipe in the noise-proof device of the exhaust fan of the present invention.

In the figure: 1. an annular outer housing; 2. an annular inner shell; 3. annular sound-absorbing cotton; 4. a connecting pipe; 5. s-shaped bending pipe body; 6. a second miniature muffler; 7. connecting blocks; 8. a fan blade; 9. a mute motor; 10. a first miniature muffler; 11. a connecting sleeve; 12. the sound cotton is inhaled to cylindricality.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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. 1-3, the present invention provides a technical solution: an anti-noise device of an exhaust fan comprises an annular outer shell 1, an annular inner shell 2 is arranged on the inner side of the annular outer shell 1, a connecting sleeve 11 is arranged on the inner side of the annular inner shell 2, a connecting pipe 4 is fixedly connected between the annular outer shell 1 and the annular inner shell 2, the annular inner shell 2 and the connecting sleeve 11 are fixedly connected through the same connecting pipe 4, a mute motor 9 is fixedly arranged on the inner side of the connecting sleeve 11, the mute motor 9 is connected with the connecting sleeve 11 through the same connecting pipe 4, a fan blade 8 is fixedly connected to a spindle end of the mute motor 9, the connecting pipe 4 is a hollow body, cylindrical sound-absorbing cotton 12 is plugged in the inner side of the connecting pipe 4, and the cylindrical sound-absorbing cotton 12 is used for; the connecting sleeve 11 is fixedly connected with first small silencers 10 in a surrounding and equidistant manner, and the first small silencers 10 are used for reducing noise generated when the mute motor 9 drives the fan blades 8 to rotate; the screw has been seted up on equal fixedly connected with connecting block 7 of downside and connecting block 7 on the annular shell body 1, and connecting block 7 makes things convenient for whole device fixed connection on the relevant equipment that needs the installation.

Fixedly connected with S type body of buckling 5 between connecting block 7 and annular shell body 1, the S type body of buckling 5 is used for prolonging the time that the noise that whole device operation produced transmits to connecting block 7 department.

Every position department of buckling of the S-shaped pipe body 5 all fixedly mounted with the small-size muffler 6 of second, the small-size muffler 6 of second is used for reducing the noise of buckling pipe body 5 conduction along the S-shaped.

The S-shaped bent pipe body 5 is made of hard steel materials, so that bending is avoided.

The inner wall of the annular inner shell 2 is provided with annular sound-absorbing cotton 3 in a surrounding and bonding mode, and the annular sound-absorbing cotton 3 enhances the noise reduction effect.

The annular outer shell 1, the annular inner shell 2 and the connecting sleeve 11 are made of light metal materials, and the overall weight is reduced.

The working principle is as follows: the annular outer shell 1, the annular inner shell 2, the connecting sleeve 11 and the silent motor 9 of the utility model are fixedly connected with each other through the connecting pipe 4, the connecting pipe 4 is a hollow body, and the inner side of the connecting pipe is plugged with the cylindrical sound absorption cotton 12, so that the noise transmitted along the connecting pipe 4 when the silent motor 9 drives the fan blades 8 to run is conveniently reduced, meanwhile, the inner wall of the annular inner shell 2 is bonded with annular sound-absorbing cotton 3 in a surrounding way, so that the noise reduction effect is enhanced, meanwhile, the first small-sized silencer 10 fixedly connected around the connecting sleeve 11 at equal intervals is used for reducing the noise generated when the mute motor 9 drives the fan blades 8 to rotate, and the S-shaped bent pipe body 5 connected between the upper side and the lower side of the annular outer shell 1 and the connecting block 7 is used for prolonging the time for transmitting the noise generated when the whole device operates to the connecting block 7, while the second small muffler 6 at each bending position of the S-bent pipe body 5 serves to reduce noise conducted along the S-bent pipe body 5.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an exhaust fan noise control device, includes annular shell body (1), its characterized in that: the inner side of the annular outer shell body (1) is provided with an annular inner shell body (2), the inner side of the annular inner shell body (2) is provided with a connecting sleeve (11), the annular outer shell body (1) is fixedly connected with connecting pipes (4) between the annular inner shell body (2), the annular inner shell body (2) is connected with the connecting sleeves (11) through the same connecting pipes (4), the inner side of each connecting sleeve (11) is fixedly provided with a mute motor (9), the mute motors (9) are connected with the connecting sleeves (11) through the same connecting pipes (4), the main shaft end of each mute motor (9) is fixedly connected with fan blades (8), the connecting pipes (4) are hollow bodies, the inner sides of the connecting sleeves are filled with cylindrical sound-absorbing cotton (12), the connecting sleeves (11) are wound with first small-size silencers (10) with equal distances, the equal fixedly connected with connecting block (7) of downside on annular shell body (1).

2. An exhaust fan noise control apparatus according to claim 1, wherein: the connecting block (7) and the annular outer shell (1) are fixedly connected with an S-shaped bending pipe body (5).

3. An exhaust fan noise control apparatus according to claim 2, wherein: and a second small silencer (6) is fixedly arranged at each bending position of the S-shaped bending pipe body (5).

4. An exhaust fan noise control apparatus according to claim 2, wherein: the S-shaped bent pipe body (5) is made of a hard steel material.

5. An exhaust fan noise control apparatus according to claim 1, wherein: the inner wall of the annular inner shell (2) is bonded with annular sound-absorbing cotton (3) in a surrounding mode.

6. An exhaust fan noise control apparatus according to claim 1, wherein: the annular outer shell (1), the annular inner shell (2) and the connecting sleeve (11) are made of light metal materials.