CN213300396U

CN213300396U - Air purifier

Info

Publication number: CN213300396U
Application number: CN202021755310.1U
Authority: CN
Inventors: 何伟坚; 何宏智
Original assignee: Guangzhou Jiusen Environmental Protection Industry Co ltd
Current assignee: Guangzhou Jiusen Environmental Protection Industry Co ltd
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-05-28
Anticipated expiration: 2030-08-20

Abstract

The utility model provides an air purifier, which comprises a shell, a fan and a silencing air channel, wherein the fan is arranged in the shell, the silencing air channel is arranged in the shell, the shell is provided with an air suction inlet and an air outlet, and the fan sucks air into the silencing air channel from the suction inlet and blows out the air from the air outlet; the silencing air duct is provided with a flow blocking section for receiving sucked air and changing a part of the front sucked air into a flow direction at the same time, and a flow guiding section for continuously guiding the air to flow towards the air outlet. The utility model has the advantages of good silencing effect.

Description

Air purifier

Technical Field

The utility model relates to an air purifier that noise is low.

Background

An air purifier is also called an air cleaner, an air freshener or a purifier, and the air purifier refers to a product capable of adsorbing, decomposing or converting various air pollutants (for example, aerosol particles such as decoration pollution, bacteria, allergens and the like, which generally include PM2.5, dust, pollen, peculiar smell, formaldehyde and the like), effectively improving air cleanliness, and is mainly classified into a household air purifier, a commercial air purifier, an industrial air purifier, a building air purifier and the like.

Air purifier mainly utilizes filter core device to adsorb or clear away the pollutant, and the filter core generally includes the filter screen, and the efficiency that the filter core adsorbed the pollutant mainly depends on clarifier fan power size and the rank (density size and filter screen material) of filter core filter screen. After the filter element is used for a period of time, a large amount of dust or pollutants are adsorbed on the filter screen, so that the filter screen is blocked, the adsorption capacity of the filter screen is influenced, the filter element needs to be cleaned and updated in time at the moment, and particularly in occasions needing a large amount of clean air, such as factories, buildings and the like, and if the filter screen is not cleaned and replaced in time, the filter screen can cause bad influence on a human body.

The existing air purifier has no silencing structure, air passing through the fan is directly blown out, airflow noise is large, and the vibration phenomenon of equipment can be caused.

SUMMERY OF THE UTILITY MODEL

To prior art's defect, the utility model provides an air purifier that noise cancelling effect is good.

In order to achieve the above object, the present invention provides an air purifier, which includes a casing, a blower and a silencing air duct, wherein the blower is disposed in the casing, the silencing air duct is disposed in the casing, the casing has an air inlet and an air outlet, and the blower sucks air into the silencing air duct from the air inlet and blows out air from the air outlet; the silencing air duct is provided with a flow blocking section for receiving sucked air and changing a part of the front sucked air into a flow direction at the same time, and a flow guiding section for continuously guiding the air to flow towards the air outlet.

According to the utility model discloses a another kind of embodiment, the inner wall in amortization wind channel is equipped with the weakened layer that is used for slowing down the vibrations that the air shock produced.

According to another embodiment of the present invention, the weakening layer comprises soundproof cotton, and a hole plate for fixing the soundproof cotton.

According to the utility model discloses a another kind of embodiment, the choked flow section is the arc structure, and the choked flow section makes the flow direction of positive inspiratory air change into from upwards to the right, and the drainage section is the arc structure, and the drainage section makes the flow direction of air change into from the right to upwards.

According to another embodiment of the present invention, the arc radius of the flow blocking section is not smaller than the arc radius of the guiding section.

According to the utility model discloses a another kind of concrete implementation, the entry in amortization wind channel and the export in amortization wind channel partly overlap or do not overlap on the projection of horizontal plane, and wherein the overlap region is not more than the quarter of the entry in amortization wind channel.

According to the utility model discloses a another kind of embodiment, the amortization wind channel is still including being used for carrying out the shrink section that converges with the air in fan exit, and the shrink section is located drainage section below one side.

The utility model discloses possess following beneficial effect:

the utility model discloses an air purifier is equipped with the amortization wind channel, can reduce the noise of air at the quick outflow in-process.

In addition, the arc structure resistance of choked flow section and drainage section is little, can guarantee the great air output of equipment to have obvious shock attenuation effect, the holistic stability of equipment is good.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of the air purifier of the present invention;

FIG. 2 is a schematic structural view of the muffling air duct of the present invention;

FIG. 3 is a schematic view of a weakening layer in a muffling air duct according to the present invention;

fig. 4 is another schematic structural diagram of the muffling air duct of the present invention.

Detailed Description

Example 1

An air purifier, as shown in fig. 1-3, includes a housing 10, a fan 20, and a muffling air duct 30.

The fan 20 is disposed in the casing 10, the silencing air duct 30 is disposed in the casing 10 and above the fan 20, the casing 10 has an air inlet 11 and an air outlet 12, the fan 20 sucks air from the air inlet 11 into the silencing air duct 30 and blows out the air from the air outlet 12, as shown by arrows in fig. 2, the silencing air duct 30 is provided with a flow blocking section 31 for receiving the sucked air and changing a part of the front sucked air into a flow direction, and a flow guiding section 32 for continuously guiding the air to flow toward the air outlet 12.

The inner wall (including the side wall) of the muffling air duct 30 is provided with a damping layer 40 for damping vibration generated by air impact, and as shown in fig. 3, the damping layer 40 includes soundproof cotton 41 and a perforated plate 42 for fixing the soundproof cotton 41.

The choke section 31 in this embodiment is an arc-shaped structure, the choke section 31 changes the flow direction of the air (main portion) sucked from the front side from upward to rightward, the flow-guiding section 32 is an arc-shaped structure, and the flow-guiding section 32 changes the flow direction of the air from rightward to upward.

For example, when the width L of the housing 10 is about 600 mm, the arc radius R1 of the choke section 31 is about 220 mm, and the arc radius R2 of the guide section is about 180 mm.

The outlet of the fan 20 in this embodiment is offset, as shown in fig. 2, the inlet of the silencing air duct 30 and the outlet of the silencing air duct 30 partially overlap or do not overlap in the projection of the horizontal plane, wherein the overlapping area is not more than one fourth of the inlet of the silencing air duct 30.

It should be understood that in the present embodiment, a filter assembly 50 for filtering air is provided at the lower portion of the casing 10, and the air sucked into the casing 10 from the suction port 11 is subjected to filtering and purifying treatment by the filter assembly 50, and then flows into the silencing air duct 30 by the action of the fan 20 to be discharged from the blow-out port 12, and the structure of the filter assembly 50 is not limited in the present embodiment.

Example 2

An air purifier, as shown in fig. 4, the present embodiment is different from embodiment 1 in that the silencing air duct 30 further includes a contraction section 33 for converging air at the outlet of the fan 20, the contraction section 33 is located at one side below the flow guiding section 32, and the fan 20 can be disposed near the center to facilitate installation of the fan 20.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the scope of the invention. Any person skilled in the art can make some modifications without departing from the scope of the invention, i.e. all equivalent modifications made according to the invention shall be covered by the scope of the invention.

Claims

1. An air purifier is characterized by comprising a shell, a fan and a silencing air duct, wherein the fan is arranged in the shell, the silencing air duct is arranged in the shell, the shell is provided with an air suction opening and an air outlet, and the fan sucks air into the silencing air duct from the suction opening and blows the air out from the air outlet; the silencing air duct is provided with a flow blocking section and a flow guiding section, wherein the flow blocking section is used for receiving front suction air and changing a part of the front suction air into a flow direction at the same time, and the flow guiding section is used for continuously guiding the air to flow towards the air outlet.

2. The air cleaner of claim 1, wherein the inner wall of the muffling air duct is provided with a damping layer for damping vibration generated by air impact.

3. The air cleaner of claim 2, wherein the reduction layer comprises soundproof cotton, and an orifice plate fixing the soundproof cotton.

4. The air cleaner of claim 1, wherein the flow-obstructing section is of an arc-shaped configuration, the flow-obstructing section causing a change in a flow direction of the front-side inhaled air from upward to rightward, and the flow-diverting section is of an arc-shaped configuration, the flow-diverting section causing a change in a flow direction of the air from rightward to upward.

5. The air cleaner of claim 4, wherein an arc radius of the flow-impeding segment is not less than an arc radius of the flow-inducing segment.

6. The air purifier of claim 1, wherein the inlet of the muffling air channel and the outlet of the muffling air channel partially overlap or do not overlap in a projection of a horizontal plane, and wherein an overlapping area is no more than one-fourth of the inlet of the muffling air channel.

7. The air purifier of claim 1, wherein the muffling air channel further comprises a constriction section for converging air at the outlet of the fan, and the constriction section is located on a side below the flow-guiding section.