CN211737483U

CN211737483U - Mute ventilator

Info

Publication number: CN211737483U
Application number: CN202020028500.7U
Authority: CN
Inventors: 林超辉; 朱建荣; 唐文锋
Original assignee: Guangdong Amx Electric Appliances Co ltd
Current assignee: Guangdong Amx Electric Appliances Co ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-10-23
Anticipated expiration: 2030-01-07

Abstract

The utility model discloses a silence ventilation blower, including the box of rectangle form, install the centrifugal fan combination in the box, be provided with first air outlet on the lateral wall of box, first income wind gap, heart formula fan combination is provided with second air outlet and second income wind gap, is connected with the inlet duct between first income wind gap and second income wind gap, is connected with the air-out pipeline between first air outlet and second air outlet, and the internal face of going into the air duct and the internal face of air-out pipeline are all attached with first sound absorption layer. The arrangement of the air inlet pipeline and the air outlet pipeline can avoid direct collision and friction of air with the internal structure of the box body, the air flows along the air inlet pipeline and the air outlet pipeline, the wind resistance can be reduced, the load of a centrifugal fan assembly can be reduced, the wind noise can be reduced, and the inner wall surface of the air inlet pipeline and the inner wall surface of the air outlet pipeline are in contact with the air through the first sound absorption layer, so that the silencing effect is improved.

Description

Mute ventilator

Technical Field

The utility model relates to a technical field of fan, in particular to silence ventilation blower.

Background

The existing ventilator is generally a cabinet type, the outside of the equipment is a square box body, a centrifugal fan combination is arranged in the equipment, an air outlet of the centrifugal fan combination is connected with an air outlet side plate of the box body to realize air exhaust, an air inlet of the fan combination is communicated with an air inlet of the box body in an open mode to realize air inlet, the machine box body only has a bearing effect on the centrifugal fan combination, air inlet/outlet of the centrifugal fan combination is not actively subjected to air duct air guide and noise reduction control, air is sucked into the box body from the air inlet of the box body and then collides and rubs with the side wall of the box body or an internal structure of the box body, the centrifugal fan combination directly exhausts air during air outlet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a silence ventilation blower to solve one or more technical problem that exist among the prior art, provide a profitable selection or create the condition at least.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a silence ventilation blower, includes the box of rectangle form, installs the centrifugal fan combination in the box be provided with first air outlet, first income wind gap on the lateral wall of box, heart formula fan combination is provided with second air outlet and second income wind gap first income wind gap and second are gone into and are connected with the inlet duct between the wind gap first air outlet and second are connected with the air-out pipeline between first air outlet and the second air outlet the internal face of inlet duct and the internal face of air-out pipeline are all attached to have first sound absorbing layer.

As a further improvement of the above technical solution, the centrifugal fan assembly includes a volute, a wind wheel, and a motor in transmission connection with the wind wheel, the volute includes a volute portion and a volute tongue portion, the volute tongue portion extends outward from the volute portion and is communicated with the volute portion, the second air outlet is disposed at an end of the volute tongue portion, the number of the first air inlets is two, the two second air inlets are disposed on two axial end faces of the volute portion, the second air inlets are disposed coaxially with the volute portion, the wind wheel is mounted in the volute portion and is coaxial with the volute portion, and an air outlet end of the air inlet pipe is sleeved on an outer side of the volute portion and is communicated with the two second air inlets.

As a further improvement of the technical scheme, a fixed bracket is fixedly arranged on the second air inlet, and the motor is arranged between the two fixed brackets.

As a further improvement of the technical proposal, a second sound absorbing layer is attached to the outer avoiding surface of the wind pipeline part of the volute-shaped part sleeve.

As a further improvement of the above technical solution, the second sound absorbing layer is a sponge layer.

As a further improvement of the above technical solution, the first sound absorbing layer is a sponge layer.

As a further improvement of the technical scheme, the outer end of the first air outlet is connected with an air outlet connecting sleeve, and the outer end of the first air inlet is connected with an air inlet connecting sleeve.

The utility model has the advantages that: when the air conditioner is used, under the operation of the centrifugal fan combination, air enters from the first air inlet and enters the second air inlet on the centrifugal fan combination through the air inlet pipeline, then is blown out from the second air outlet on the centrifugal fan combination and is discharged from the first air outlet after passing through the air outlet pipeline, the arrangement of the air inlet pipeline and the air outlet pipeline can avoid the direct collision and friction of the air with the internal structure of the box body, the air flows along the air inlet pipeline and the air outlet pipeline, the wind resistance can be reduced, the load of the centrifugal fan combination can be reduced, the wind noise can be reduced, the inner wall surface of the air inlet pipeline and the inner wall surface of the air outlet pipeline are in contact with the air through the first sound absorption layer, and the mute effect is improved.

Drawings

The present invention will be further explained with reference to the drawings and examples;

fig. 1 is a top sectional view of an embodiment of a mute ventilator provided by the present invention, wherein arrows indicate the flow direction of wind;

fig. 2 is a front sectional view of an embodiment of the mute ventilator provided by the present invention, wherein arrows indicate the flow direction of wind.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, if words such as "a plurality" are used, the meaning is one or more, the meaning of a plurality of words is two or more, and the meaning of more than, less than, more than, etc. is understood as not including the number, and the meaning of more than, less than, more than, etc. is understood as including the number.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 and 2, a mute ventilation machine of the present invention includes the following embodiments:

a mute ventilator comprises a rectangular box body 100 and a centrifugal fan assembly 200 installed in the box body 100, wherein a first air outlet 110 and a first air inlet 120 are arranged on the side wall of the box body 100, a second air outlet 210 and a second air inlet 220 are arranged on the centrifugal fan assembly, an air inlet pipeline 300 is connected between the first air inlet 120 and the second air inlet 220, an air outlet pipeline 400 is connected between the first air outlet 110 and the second air outlet 210, and a first sound absorption layer 500 is attached to the inner wall surface of the air inlet pipeline 300 and the inner wall surface of the air outlet pipeline 400.

When the centrifugal fan assembly 200 is in use, under the operation of the centrifugal fan assembly 200, air enters from the first air inlet 120, enters the second air inlet 220 on the centrifugal fan assembly 200 through the air inlet pipeline 300, is blown out from the second air outlet 210 on the centrifugal fan assembly 200, and is discharged from the first air outlet 110 after passing through the air outlet pipeline 400, the arrangement of the air inlet pipeline 300 and the air outlet pipeline 400 can avoid direct collision and friction of the air with the internal structure of the box body 100, the air flows along the air inlet pipeline 300 and the air outlet pipeline 400, the wind resistance can be reduced, the load of the centrifugal fan assembly 200 can be reduced, the wind noise can be reduced, the inner wall surface of the air inlet pipeline 300 and the inner wall surface of the air outlet pipeline 400 are in contact with the air through the first sound absorption layer 500, and the silencing effect is improved.

In some embodiments, the centrifugal fan assembly 200 includes a volute 230, a wind wheel 240, and a motor 250 in transmission connection with the wind wheel 240, the volute 230 includes a volute portion 231 and a volute tongue portion 232, the volute tongue portion 232 extends outward from the volute portion 231 and is in communication with the volute portion 231, the second air outlet 210 is disposed at an end of the volute tongue portion 232, two first air inlets 120 are disposed, two second air inlets 220 are disposed on two axial end surfaces of the volute portion 231, the second air inlets 220 are disposed coaxially with the volute portion 231, the wind wheel 240 is mounted in the volute portion 231 and is coaxial with the volute portion 231, and an air outlet end of the air inlet duct 300 is sleeved outside the volute portion 231 and is in communication with the two second air inlets 220. When the air blower operates, the motor 250 drives the wind wheel 240 to rotate, external air is sucked into the air duct 300 from the first air inlet 120, then enters the volute 231 from the two second air inlets 220, and under the action of centrifugal force when the wind wheel 240 rotates, the wind rotates outwards around the axis of the volute 231, is rotated to the volute tongue portion 232, and finally is blown out from the second air outlet 210, and the air inlet amount of the volute 230 can be increased by arranging the two second air inlets 220, so that the ventilation amount of the air blower is increased. In other embodiments, two wind wheels 240 may be provided, two wind wheels 240 are coaxially installed in the two second wind inlets 220, each wind wheel 240 is driven by one motor 250, and two motors 250 may be installed between the two wind wheels 240 and fixed to the inside of the volute 230 through a bracket.

In some embodiments, a fixing bracket 221 is fixedly installed on the second air inlet 220, and the motor 250 is installed between the two fixing brackets 221.

In some embodiments, a second sound absorbing layer 600 is attached to the outer surface of the volute 231 surrounding the air duct 300. Because the wind entering the air duct 300 contacts with the outer avoiding surface of the part of the volute 231 sleeved in the air duct 300, the second sound absorbing layer 600 can absorb the wind contacting with the outer avoiding surface of the volute 231, and the silencing effect of the whole ventilator is further improved.

In some embodiments, the second sound-absorbing layer 600 is a sponge layer.

In some embodiments, the first sound absorbing layer 500 is a sponge layer.

In some embodiments, the outer end of the first air outlet 110 is connected to an air outlet connection sleeve 111, and the outer end of the first air inlet 120 is connected to an air inlet connection sleeve 121. When in use, the air inlet connecting sleeve 121 can be connected with an outdoor air inlet pipe, and the air outlet connecting sleeve 111 can be connected with an indoor air supply pipe.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims

1. A silence ventilation blower which characterized in that: including box (100) of rectangle form, install centrifugal fan combination (200) in box (100) be provided with first air outlet (110), first income wind gap (120) on the lateral wall of box (100), the heart type fan combination is provided with second air outlet (210) and second income wind gap (220) be connected with between first income wind gap (120) and second income wind gap (220) and go into wind pipeline (300) be connected with between first air outlet (110) and second air outlet (210) air-out pipeline (400) all paste with first sound absorbing layer (500) to the internal wall face of income wind pipeline (300) and the internal wall face of air-out pipeline (400).

2. A quiet ventilator as claimed in claim 1, wherein: the centrifugal fan combination (200) comprises a volute (230), a wind wheel (240) and a motor (250) in transmission connection with the wind wheel (240), the volute (230) comprising a volute portion (231) and a volute tongue portion (232), the volute tongue portion (232) extending outwardly from the volute portion (231) and communicating with the volute portion (231), the second air outlets (210) are arranged at the end parts of the snail tongue parts (232), two first air inlets (120) are arranged, two second air inlets (220) are oppositely arranged on two axial end surfaces of the snail-shaped part (231), the second air inlet (220) and the volute part (231) are coaxially arranged, the wind wheel (240) is arranged in the volute part (231) and is coaxial with the volute part (231), the air outlet end of the air inlet pipeline (300) is sleeved on the outer side of the worm-shaped part (231) and communicated with the two second air inlets (220).

3. A quiet ventilator as claimed in claim 2, wherein: and a fixed bracket (221) is fixedly arranged on the second air inlet (220), and the motor (250) is arranged between the two fixed brackets (221).

4. A quiet ventilator as claimed in claim 2, wherein: and a second sound absorption layer (600) is attached to the outer avoiding surface of the part, entering the wind pipeline (300), of the volute part (231).

5. A quiet ventilator as claimed in claim 4, wherein: the second sound absorption layer (600) is a sponge layer.

6. A quiet ventilator as claimed in claim 1, wherein: the first sound absorption layer (500) is a sponge layer.

7. A quiet ventilator as claimed in claim 1, wherein: the outer end of the first air outlet (110) is connected with an air outlet connecting sleeve (111), and the outer end of the first air inlet (120) is connected with an air inlet connecting sleeve (121).