WO2015032150A1

WO2015032150A1 - Dust collector and exhaust air device thereof

Info

Publication number: WO2015032150A1
Application number: PCT/CN2013/089595
Authority: WO
Inventors: 林云龙; 杨力
Original assignee: 江苏美的春花电器股份有限公司
Priority date: 2013-09-06
Filing date: 2013-12-16
Publication date: 2015-03-12

Abstract

A dust collector and an exhaust air device (300) thereof. The exhaust air device (300) is provided downstream of a motor cover (240) of the dust collector and is in communication with the motor cover (240) through an air outlet (260) on the motor cover (240). The exhaust air device (300) comprises an exhaust air cover (310) and a filtering component (340), wherein an exhaust air passage (320) is limited by the exhaust air cover (310), the exhaust air passage (320) is in communication with the motor cover (240) through the air outlet (260) and is in communication with the outside through an exhaust air outlet (350), and the cross-sectional area of the exhaust air passage (320) gradually increases in the direction from the air outlet (260) to a direction away from the air outlet (260); and the filtering component (340) is connected to the exhaust air cover (310) and is provided at the exhaust air outlet (350).

Description

Vacuum cleaner and its exhaust device

The present invention relates to the field of living appliances, and in particular to an exhaust device for a vacuum cleaner and a vacuum cleaner having the same. Background technique

In the existing vacuum cleaners, the single exhaust structure is adopted, and the gas is directly discharged from the motor cover and discharged through the air outlet, so that the disordered gas cannot be stabilized, and the noise of the product is also increased. Summary of the invention

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present invention is to provide an exhaust device for a vacuum cleaner.

Another object of the present invention is to provide a vacuum cleaner having the exhaust device.

An exhaust device for a vacuum cleaner according to an embodiment of the present invention is disposed downstream of a motor cover of a vacuum cleaner and communicates with the motor cover through an air outlet on the motor cover, the exhaust device comprising: an exhaust cover The exhaust hood defines an exhaust passage, and the exhaust passage communicates with the motor cover through the air outlet and communicates with the outside through the air outlet, from the air outlet to away from the air outlet In the direction, the cross-sectional area of the exhaust passage gradually becomes larger; and the filter member is connected to the exhaust hood and disposed at the exhaust vent.

According to the exhaust device of the embodiment of the present invention, when the air discharged from the air outlet flows in the exhaust passage, since the cross-sectional area of the exhaust passage gradually becomes larger, the flow rate or frequency of the air flow can be changed, thereby greatly reducing The noise and vibration generated by the air flow itself make the vacuum cleaner's mute effect obvious.

Preferably, the air outlet has an area of at least twice the area of the air outlet. This further greatly reduces the gas flow rate, thereby reducing noise and vibration, making the mute effect more apparent.

According to an embodiment of the present invention, the exhausting device further includes: an exhaust stencil adapted to be disposed on an air outlet of the motor cover and having a plurality of exhaust mesh holes.

Thus, the first layer exhaust structure serving as the exhaust means through the exhaust screen provided on the air outlet serves to reduce the flow rate of the exhaust gas from the intake means, divert it, and change its frequency. However, after passing through the exhaust passage, the gas flow rate is further reduced and its frequency is further changed. Optionally, the cross-sectional shape of the exhaust mesh is circular, polygonal or elliptical.

Optionally, the cross section of the exhaust mesh gradually increases along the direction of the exhaust gas flow.

Optionally, the plurality of exhaust meshes are evenly arranged on the exhaust mesh plate.

Preferably, the plurality of exhaust mesh holes are evenly arranged in a plurality of rows and columns on the exhaust mesh plate. Preferably, the plurality of exhaust mesh holes are arranged on the exhaust mesh plate in a radially spaced annular shape. According to an embodiment of the present invention, the exhaust device further includes an exhaust cover, the exhaust cover is sleeved outside the exhaust cover and has an exhaust outer port, the exhaust cover and the row An outer air passage that communicates with the exhaust passage through the outer exhaust port is defined between the air hoods.

According to an embodiment of the invention, the filter element is a HEPA filter.

Preferably, a plurality of sequentially side-by-side filter members may be disposed in the exhaust passage adjacent to the exhaust vent in the direction of the exhaust gas flow.

A vacuum cleaner according to an embodiment of the present invention includes the exhaust device of the vacuum cleaner described in the above embodiment.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

Figure 1 is a cross-sectional view of a vacuum cleaner in accordance with one embodiment of the present invention;

Fig. 2 is a schematic view of the exhaust device of the cleaner shown in Fig. 1. Reference mark:

Dust collecting device 100; filter 110;

Intake device 200;

Motor 210; first motor cover 220;

a second motor cover 240;

Air inlet 250; air outlet 260;

Wind channel 270;

Exhaust device 300; exhaust hood 310; exhaust passage 320;

Exhaust stencil 330; exhaust mesh 331;

Filter element 340 ; air outlet 350

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting. In the description of the present invention, it is to be understood that the terms "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial" The orientation or positional relationship of the "circumferential" or the like is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or component referred to has a specific The orientation, construction and operation in a particular orientation are not to be construed as limiting the invention. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features, either explicitly or implicitly. In the description of the present invention, "multiple" means two or more unless otherwise stated.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" should be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

An exhaust device 300 of a vacuum cleaner according to an embodiment of the present invention will be briefly described below with reference to Fig. 2, which is disposed downstream of the motor cover of the cleaner and communicates with the motor cover through an air outlet 260 on the motor cover.

The exhaust device 300 according to an embodiment of the present invention includes: an exhaust hood 310 and a filter 340.

As shown in FIG. 2, the exhaust hood 310 defines an exhaust passage 320 that communicates with the motor cover 240 through the air outlet 260 and communicates with the outside through the air outlet 350, from the air outlet 260 to the air outlet 260. In the direction of the arrow (ie, the direction of the arrow in FIG. 2), the cross-sectional area of the exhaust passage 320 gradually becomes larger.

The filter member 340 is coupled to the hood 310 and is disposed at the vent 350, i.e., at one end of the vent passage 320 remote from the vent 260. Optionally, filter element 340 is a HEPA filter. Thereby, the gas discharged from the exhaust passage 320 flows out of the HEPA filter and flows back to the atmosphere. Preferably, a plurality of sequentially side-by-side filter members 340 (not shown) may be disposed in the exhaust passage 320 adjacent to the exhaust vent 350 in the flow direction of the air.

Thereby, when the air discharged from the air outlet 260 flows in the exhaust passage 320, since the cross-sectional area of the exhaust passage 320 gradually becomes larger, the flow rate or frequency of the air flow can be changed, thereby greatly reducing the air flow itself. The noise and vibration generated further make the vacuum cleaner's mute effect more obvious. Among them, those skilled in the art can understand that the outer shape of the exhaust hood 310 can be designed according to the shape of a specific product as long as the cross-sectional area of the exhaust passage 320 can be gradually increased.

In some preferred embodiments, the area of the vent 350 is at least twice the area of the vent 260. This further greatly reduces the gas flow rate, thereby reducing noise and vibration, making the mute effect more apparent.

According to some embodiments of the present invention, the exhaust device 300 further includes an exhaust stencil 330. As shown in FIG. 4, the exhaust stencil 330 is disposed on the air outlet 260 of the second motor cover 240, and the exhaust stencil 330 There are a plurality of exhaust mesh holes 331. Thus, the exhaust layer stencil 330 provided on the air outlet 260 serves as a first layer exhaust structure of the exhaust device for reducing the flow rate of the exhaust gas from the intake device 200, diverting it, and changing Its frequency. However, after passing through the exhaust passage 320, the gas flow rate is further reduced and the frequency is further changed.

Alternatively, the cross-sectional shape of the exhaust mesh 331 is circular, polygonal, elliptical or other shape. Further, in the direction of the exhaust gas flow of the exhaust screen 330, the cross section of the exhaust mesh 331 gradually increases, not shown.

Preferably, a plurality of exhaust mesh openings 331 are evenly arranged on the exhaust stencil 330, as shown in FIG. In an alternative example, a plurality of exhaust mesh openings 331 are evenly arranged in rows and columns on the exhaust stencil 330. In another alternative example, a plurality of exhaust mesh openings 331 are evenly spaced on the exhaust stencil 330 in a radially spaced annular shape.

According to some embodiments of the present invention, the exhaust device 300 may further include an exhaust cover, not shown, the exhaust cover is sleeved outside the exhaust cover and has an exhaust outer port, the exhaust An outer air passage communicating with the exhaust passage through the outer exhaust port is defined between the outer cover and the exhaust hood. Thus, by providing the exhaust hood, the exhaust passage can be further extended by the outer duct, thereby reducing the flow rate to the air flow and further changing the air flow frequency.

A vacuum cleaner according to an embodiment of the present invention will be described below with reference to Figs.

A vacuum cleaner according to an embodiment of the present invention includes: a dust collecting device 100 for collecting dust, an air intake device 200, and an exhaust device 300, wherein the exhaust device 300 is an exhaust device of the vacuum cleaner in the above embodiment. Optionally, the dust collecting device 100 includes a dust collecting bag or a dust collecting cup.

As shown in FIG. 1 , the air intake device 200 includes a motor 210 and a first motor cover 220 and a second motor cover 240 that are sequentially disposed from the inside to the outside. The motor 210 is disposed in the first motor cover 220 located at the innermost layer. The first motor cover 220 communicates with the dust collecting device 100 through the air inlet 250. The first motor cover 220 and the second motor cover 240 jointly define an air duct 270, and the second motor cover 240 has an air outlet 260. Optionally, a filter screen 110 for filtering dust is disposed at the air inlet 250 between the dust collecting device 100 and the first motor cover 220.

Thereby, the motor 210 rotates to generate a negative pressure in the first motor cover 220, and the dust-laden air is turbulently sucked into the dust collecting device 100, and the dust is filtered at the air inlet 250, and the air enters the first motor cover 220. At this time, the turbulent gas sucked by the motor 210 flows through the air passage 270, is discharged from the air outlet of the second motor cover 240, passes through the exhaust passage 320, and is discharged to the atmosphere.

The vacuum cleaner according to the embodiment of the present invention stabilizes the flow of the air flow by sufficiently lengthening the length of the air passage through which the air flows, and greatly reduces the noise. Further, the vacuum cleaner according to the present invention is simple in structure and low in cost.

The working process of the vacuum cleaner according to the embodiment of the present invention will be specifically described below with reference to Figs.

First, the motor 210 rotates to generate a negative pressure in the first motor cover 220, and the dusty air is turbulently sucked into the dust collecting device 100, and the dust is filtered at the air inlet 250, and the air enters the first motor cover 220.

As indicated by the arrow in Fig. 1, the airflow is drawn in from the air inlet 250 by the motor 210, flows into the first motor cover 220, flows along the inner wall of the first motor cover 220, and passes from the first air outlet 221 to the air duct 270. Flow to the air outlet 260. At this time, the air flow is exhausted from the exhaust mesh plate 330 provided on the air outlet 260, and the exhaust mesh plate 330 has a plurality of exhaust mesh holes 331, thereby reducing the flow rate of the exhaust gas from the intake device 200. Divert it and change its frequency. Then, the gas passing through the exhaust stencil 330 flows in the exhaust passage 320, and since the cross-sectional area of the exhaust passage 320 is gradually increased, the flow rate or frequency of the air flow is changed, thereby greatly reducing the generation of the air flow itself. Noise and vibration, which makes the vacuum cleaner's mute effect more obvious.

The specific configuration of the integrated device in the cleaner according to the embodiment of the present invention and other configurations and operations of the intake and exhaust devices are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. Particular features, structures, materials or features described in the examples or examples are included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

While the embodiments of the present invention have been shown and described, the embodiments of the invention may The scope of the invention is defined by the claims and their equivalents.

Claims

claims

1. An exhaust device for a vacuum cleaner, the exhaust device is located downstream of the motor cover of the vacuum cleaner and communicates with the motor cover through an air outlet on the motor cover, characterized in that, the exhaust device Gas equipment includes:

Exhaust hood, the exhaust hood defines an exhaust channel, the exhaust channel is connected to the motor cover through the air outlet and is connected to the outside through the air outlet, from the air outlet to the distance away from the In the direction of the air outlet, the cross-sectional area of the exhaust channel gradually becomes larger; and

A filter element, the filter element is connected to the exhaust hood and is located at the exhaust outlet.

2. The exhaust device of a vacuum cleaner according to claim 1, wherein the area of the air outlet is at least twice the area of the air outlet.

3. The exhaust device of a vacuum cleaner according to claim 1 or 2, further comprising: an exhaust screen, the exhaust screen is suitable for being located on the air outlet of the motor cover and has multiple exhaust mesh.

4. The exhaust device of a vacuum cleaner according to claim 3, characterized in that the cross-sectional shape of the exhaust mesh is circular, polygonal or elliptical.

5. The exhaust device of a vacuum cleaner according to claim 3 or 4, wherein the cross section of the exhaust mesh gradually increases along the direction of the exhaust air flow.

6. The exhaust device of a vacuum cleaner according to any one of claims 3 to 5, characterized in that the plurality of exhaust mesh holes are evenly arranged on the exhaust mesh plate.

7. The exhaust device of a vacuum cleaner according to claim 6, wherein the plurality of exhaust mesh holes are evenly arranged in multiple rows and columns on the exhaust mesh plate.

8. The exhaust device of a vacuum cleaner according to claim 6, wherein the plurality of exhaust mesh holes are arranged in a radially spaced annular shape on the exhaust mesh plate.

9. The exhaust device of a vacuum cleaner according to any one of claims 1 to 8, further comprising an exhaust outer cover, the exhaust outer cover being sleeved on the outside of the exhaust hood and having an exhaust An external air duct is defined between the exhaust outer cover and the exhaust hood and communicates with the exhaust channel through the exhaust outer port.

10. The exhaust device of a vacuum cleaner according to any one of claims 1 to 9, characterized in that the filter element is a HEPA filter.

11. The exhaust device of a vacuum cleaner according to any one of claims 1 to 10, characterized in that, along the direction of the exhaust air flow, a plurality of filters can be arranged side by side in the exhaust channel adjacent to the exhaust outlet.

12. A vacuum cleaner, characterized by comprising the exhaust device of the vacuum cleaner according to any one of claims 1-11.