CN211177278U

CN211177278U - New fan

Info

Publication number: CN211177278U
Application number: CN201920787708.4U
Authority: CN
Inventors: 吴临生
Original assignee: Beijing Weiming Qingfeng Environmental Technology Co ltd
Current assignee: Beijing Weiming Qingfeng Environmental Technology Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-08-04
Anticipated expiration: 2029-05-29

Abstract

The utility model provides a fresh air fan, which comprises a front side, a back side and a peripheral side wall connecting the front side and the back side, wherein the front side, the back side and the side wall form a cavity in a surrounding way, and a plurality of air outlets are arranged at the peripheral edge of the cavity; the cylindrical air inlet pipe is closed at one end and is opened at the other end, is vertically connected to the center of the front surface of the case, is communicated with the case at the opened end, and is provided with an air inlet on the cylindrical wall; the dust bag is arranged at the opening end of the air inlet pipe; the centrifugal fan is arranged in the center of the cavity of the case, and an air inlet of the centrifugal fan is opposite to the opening end of the air inlet pipe; and the cylindrical filter element is arranged in the cavity of the case, is positioned at the inner side of the air outlet and surrounds the periphery of the centrifugal fan, and two ports of the cylindrical filter element are respectively and tightly connected with the inner walls of the front side and the back side of the case. This new fan compact structure is guaranteeing under sufficient intake, dwindles the fuselage size greatly, improves filtering quality simultaneously.

Description

New fan

Technical Field

The utility model relates to an air purification device, concretely relates to compact structure's small-size new fan.

Background

PM2.5 refers to particles in the atmosphere having a diameter of 2.5 μm or less, also known as lung accessible particles, which are less than 1/20, which is the thickness of a hair strand. PM2.5, although only a component of small content in the earth's atmosphere, has important influence on air quality, visibility and the like. The PM2.5 has small particle size, is rich in a large amount of toxic and harmful substances, has long retention time in the atmosphere and long conveying distance, and therefore has larger influence on human health and atmospheric environmental quality.

The new fan is an effective air purification device, can be outdoor the dirty air discharge of indoor on the one hand, on the other hand is outdoor fresh air after measures such as sterilization, disinfection, filtration, input indoor again, the new fan utilizes new trend convection technique, through independently supplying air and induced air, make room air realize the convection cycle, let everywhere in the room all be fresh clean air, thereby carry out the room air replacement to the at utmost, the new fan all is equipped with multiple filter screen that has the air purification function usually, guarantee to get into indoor air clean, make people live and have a healthy environment.

The existing fresh air machine is large in size due to the structural design reasons, such as the shape, arrangement mode and number of filter elements, the thickness of the machine body reaches 160-200 mm, and the machine is heavy and inconvenient to use.

Disclosure of Invention

The utility model aims at providing a new fan, compact structure is guaranteeing under the sufficient intake, dwindles the fuselage size greatly, improves filtering quality simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a new fan, comprising:

the chassis comprises a front surface, a back surface and a peripheral side wall connecting the front surface and the back surface, wherein the front surface, the back surface and the side wall form a cavity in a surrounding manner, and a plurality of air outlets are arranged at the peripheral edge of the cavity;

the cylindrical air inlet pipe is closed at one end and is opened at the other end, is vertically connected to the center of the front surface of the case, is communicated with the case at the opened end, and is provided with an air inlet on the cylindrical wall;

the dust bag is arranged at the opening end of the air inlet pipe;

the centrifugal fan is arranged in the center of the cavity of the case, and an air inlet of the centrifugal fan is opposite to the opening end of the air inlet pipe;

and the cylindrical filter element is arranged in the cavity of the case, is positioned at the inner side of the air outlet and surrounds the periphery of the centrifugal fan, and two ports of the cylindrical filter element are respectively and tightly connected with the inner walls of the front side and the back side of the case.

Furthermore, a PTC auxiliary heating element is arranged between the opening end of the air inlet pipe and the air inlet of the fan.

Further, the dust bag is selected from, but not limited to, F7, F8 and H11 grades.

Further, the centrifugal fan adopts a rear inclination type.

Furthermore, the centrifugal fan is fixed in the cavity of the case through a fixing frame.

Further, the filter element is a HEPA filter element, optionally but not limited to H13 grade.

Furthermore, a button for opening the case is arranged on the case; preferably, the air inlet duct is hinged to the cabinet by a hinge, controlled by the button, which is actuated to pivot the cabinet and the air inlet duct open.

Furthermore, the side wall of the case, the air inlet pipe and the filter element are all cylindrical, and the filter element and the centrifugal fan are concentrically arranged.

Furthermore, the air outlets are circumferentially and uniformly distributed on the side wall of the case.

Further, the air inlet on the air inlet pipe is vertical downwards when the new fan is used.

The utility model provides a new fan, because HEPA filter core and centrifugal fan's ingenious design, can reduce quick-witted case size greatly, the volume has only 1/4 to 1/3 of new fan, and thickness only 1/2, the biggest new amount of wind can reach 100m³H to 150m³H is used as the reference value. The HEPA filter core has a large expansion area, and 99.97% of PM2.5 can be filtered. Therefore, the novel fan can remarkably reduce the size of the fan body on the premise of ensuring the filtering performance and the fresh air volume through the improvement of the structure.

Drawings

Fig. 1 is a schematic structural view of a new fan according to an embodiment of the present invention.

In the figure: 1-an air inlet pipe, 2-an air inlet, 3-a dust bag, 4-an air inlet, 5-a centrifugal fan, 6-an impeller, 7-a fixing frame, 8-an HEPA filter element, 9-an air outlet, 10-a cabinet and 11-a PTC auxiliary heating element.

Detailed Description

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

The present embodiment provides a new fan, the structure of which is shown in fig. 1 and specifically described below.

The case 10 is circular and comprises a front surface, a back surface and a circumferential cylindrical side wall connecting the front surface and the back surface, the front surface, the back surface and the side wall form a cavity, and 4 air outlets 9 are uniformly distributed on the side wall in the circumferential direction.

The air inlet pipe 1 is a cylinder with one end closed and the other end open, is vertically connected with the center of the front of the case 10, the open end is communicated with the case 10, and an air inlet 2 is arranged on the cylinder wall.

The centrifugal fan 5 is a backward-inclined centrifugal fan and is fixed in the center of the cavity of the case 10 through a fixing frame 7, and the air inlet 4 of the centrifugal fan 5 is opposite to the opening end of the air inlet pipe 1.

The HEPA filter element 8 is cylindrical, is H13-level and 4cm thick, is arranged in a cavity of the case 10, surrounds the periphery of an impeller 6 of the centrifugal fan 5 and is concentric with the centrifugal fan 5, is about 5cm away from the impeller 6, and is tightly connected with the inner walls of the front surface and the back surface of the case 10 at two ports respectively. Such structure has guaranteed that 8 expansion area of HEPA filter core can reach 2m²Meanwhile, the filter is very uniform, the air outlet is uniform, and the noise is very low.

A dust bag 3 with F7, F8 and even H11 levels is arranged on the air inlet pipe 1 close to the cabinet 10, so that the filtering level is increased, the effect of filtering medium and high is achieved, most PM10 and part PM2.5 are filtered, the small insects and the like are prevented from entering the room, and the effect of protecting the HEPA filter element 8 and the centrifugal fan 5 is achieved.

A PTC auxiliary heating element 11 may be installed at the bottom of the air inlet duct 1 to heat the cold air.

A button (not shown) is provided on the housing 10 to open the button to completely separate the housing 10 from the air inlet duct 1 to expose the dust bag 3, the HEPA filter 8 and other components therein when the HEPA filter 8 is replaced or other components are repaired.

Through the structural design, the diameter of the air inlet pipe 1 can be reduced to 85 mm; the case 10 can be reduced to 300mm in diameter and 100mm in thickness (i.e., the distance between the front and back sides), and is small in size, light, thin, beautiful, and has a volume of 1/4-1/3 and a thickness of 1/2 that of existing new fans in a new fan with the same air volume. The new fan has excellent performance, and the maximum fresh air volume can reach 100m³H to 150m³/h。

When the air inlet pipe is used, the air inlet of the air inlet pipe 1 faces downwards, and air is sucked from the downward air inlet 1 of the air inlet pipe 1, so that even if the air speed reaches 6m/s (the air volume is 120 m)³And/h), the rain water entrained by the wind does not enter the case 10. Wind is firstly filtered by the dust bag 3, is sucked by the centrifugal fan 5 through the air inlet 4, is centrifugally thrown out to the HEPA filter element 8, 99.97 percent of PM2.5 is filtered through H13-grade HEPA, and the filtered clean air is conveyed to a room through the air outlet 9.

The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and those skilled in the art can modify or substitute the technical solutions of the present invention without departing from the spirit and scope of the present invention, and the protection scope of the present invention shall be subject to the claims.

Claims

1. A new fan, comprising:

the dust bag is arranged at the opening end of the air inlet pipe;

2. The new blower of claim 1 wherein a PTC auxiliary heating element is provided between the open end of the air inlet duct and the air inlet of the blower.

3. The new fan as claimed in claim 1, wherein the dust bag is selected from, but not limited to, F7, F8, H11 grades.

4. The new fan as claimed in claim 1, wherein the centrifugal fan is of a back-angled type.

5. The new fan as claimed in claim 1, wherein the centrifugal fan is fixed in the cavity of the case by a fixing frame.

6. The new fan as claimed in claim 1 wherein the filter element is a HEPA filter element selected from but not limited to H13 grade.

7. The new fan as claimed in claim 1, wherein the cabinet is provided with a button for opening the cabinet.

8. The new fan as claimed in claim 1, wherein the side wall of the cabinet, the air inlet pipe and the filter element are all cylindrical, and the filter element and the centrifugal fan are concentrically arranged.

9. The new fan of claim 1, wherein the air outlets are circumferentially and evenly distributed on the sidewall of the chassis.

10. The new blower of claim 1 wherein the inlet opening of the inlet duct faces vertically downward when the new blower is in use.