WO2022032420A1

WO2022032420A1 - Vacuum cleaner

Info

Publication number: WO2022032420A1
Application number: PCT/CN2020/108065
Authority: WO
Inventors: 刘海平; 胡彬; 施金鑫
Original assignee: 天佑电器（苏州）有限公司
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2022-02-17
Also published as: CN115867179A

Abstract

A vacuum cleaner (1), comprising: a duct collection assembly (10), a motor assembly (20), a filtering member (30), and a motor air inlet cover (40). The dust collection assembly (10) is provided with an air outlet (12); the motor assembly (20) is provided with a motor air inlet (21); the filtering member (30) is disposed between the air outlet (12) and the motor air inlet (21); the motor air inlet cover (40) is connected to the dust collection assembly (10) and the motor assembly (20); a flow guide member (50) is provided inside the motor air inlet cover (40), the opening of the flow guide member (50) close to the dust collection assembly (10) is a first opening (51), the first opening (51) being communicated with the air outlet (12), and the opening of the flow guide member (50) close to the motor assembly (20) is a second opening (52), the second opening (52) being communicated with the motor air inlet (21); the sectional area of the first opening (51) is smaller than that of the second opening (52), and the sectional area of the flow guide member (50) gradually changes in the central axis direction of the flow guide member (50). In the vacuum cleaner (1), the sectional area of the flow guide member (50) gradually changes in the central axis direction of the flow guide member (50), and energy loss is reduced, thereby reducing the power and efficiency loss of the whole machine.

Description

Vacuum cleaner

technical field

The present invention relates to a vacuum cleaner, in particular to a vacuum cleaner capable of reducing energy loss.

Background technique

The vacuum cleaner is a widely used cleaning equipment on the market, and the dust removal capacity is a key factor to directly measure the performance and quality of the vacuum cleaner. Vacuum cleaners are often divided into two types: cup-type vacuum cleaners and bag-type vacuum cleaners. Most cup-type vacuum cleaners on the market use a cyclone separation structure to separate dirt. The cross-sectional area of the air outlet of the existing dust cup type vacuum cleaner is inconsistent with the cross-sectional area of the motor air inlet hood. When the fluid flows into the motor air inlet hood from the air outlet, the cross-sectional area suddenly increases, and the airflow in the motor air inlet hood is prone to turbulence. Cause energy loss, and then cause power and efficiency loss of the whole machine.

SUMMARY OF THE INVENTION

The present invention provides a vacuum cleaner capable of reducing energy loss.

The present invention provides a vacuum cleaner, comprising:

a dust collecting assembly, which is provided with an air outlet;

a motor assembly, which is provided with a motor air inlet;

a filter element, which is arranged between the air outlet and the air inlet of the motor;

The motor air inlet hood is connected to the dust collecting assembly and the motor assembly. The motor air inlet hood is provided with a deflector, and the opening of the air deflector close to the dust collecting assembly is the first opening. The first opening communicates with the air outlet, the opening of the air guide member close to the motor assembly is a second opening, and the second opening communicates with the air inlet of the motor; the cross-sectional area of the first opening is smaller than that of the second opening , and the cross-sectional area of the air guide is gradually changing along the direction of the central axis of the air guide.

Optionally, the dust collecting assembly includes a dust cup, a cyclone separation structure and a dust holding pipe disposed in the dust cup, and the airflow passes through the cyclone separation structure and the dust holding pipe to reach the air outlet.

Optionally, the air guide member and the motor air inlet hood are provided separately.

Optionally, a holding portion is provided on the flow guide member near the second opening, and the filter member is held in the flow guide member through the holding portion.

Optionally, the filter element is located outside the flow guide element, and the filter element covers the second opening.

Optionally, the inner wall of the air guide is an arc-shaped transition surface or a conical transition surface.

Optionally, the tangential direction of the arc-shaped transition surface close to the first opening or the second opening is consistent with the airflow direction of the air outlet.

The present invention also provides a vacuum cleaner, comprising:

The dust collection assembly includes a dust cup and a flow guide, the flow guide is protruded outside the dust cup, the opening of the flow guide close to the dust collection assembly is a first opening, and the first opening communicates with the dust collector. In the dust cup, the opening of the air guide member close to the motor assembly is a second opening; the cross-sectional area of the first opening is smaller than the cross-sectional area of the second opening, and the cross-sectional area of the air guide member is along the direction of the guide member. The direction of the central axis of the flow piece is gradually changed;

a motor assembly, which is provided with a motor air inlet, and the motor air inlet communicates with the second opening;

The filter element is arranged between the second opening and the air inlet of the motor.

Optionally, the dust cup and the deflector are integrally formed. .

Compared with the prior art, in the present invention, the cross-sectional area of the air guide is gradually changed along the central axis of the air guide, the first opening near the dust collecting assembly is smaller, and the second opening near the motor assembly is larger, Reduce energy loss, thereby reducing power and efficiency loss of the whole machine. In the present invention, the filter element is assembled into the guide element, and the filter element can be removed with the help of the guide element when cleaning the filter element. The operation is convenient and the operator does not directly contact the dirt. In the present invention, the tangential direction of the arc-shaped transition surface close to the first opening or the second opening is consistent with the airflow direction of the air outlet, so that the airflow direction is different when the airflow flows from the dust collecting assembly to the motor assembly. It will change drastically, and the diversion will be smoother.

Description of drawings

Fig. 1 is the combined schematic diagram of the vacuum cleaner of the present invention;

Fig. 2 is the partial exploded schematic diagram of Fig. 1;

3 is a schematic structural diagram of the first embodiment of the air guide in the vacuum cleaner of the present invention;

4 is a schematic cross-sectional view of the first embodiment of the vacuum cleaner of the present invention, wherein the filter element is assembled into the air guide element;

FIG. 5 is a schematic cross-sectional view of the second embodiment of the vacuum cleaner of the present invention, wherein the filter element is assembled to the outside of the air guide element.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " Rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore It should not be construed as a limitation of the present invention.

In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

In the present invention, unless otherwise expressly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two elements or the interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

1-5, the present invention provides a vacuum cleaner 1, the vacuum cleaner 1 can be an upright vacuum cleaner or a hand-held vacuum cleaner, etc., and can be a dust cup type vacuum cleaner or a dust bag type vacuum cleaner.

The vacuum cleaner 1 of the present invention includes:

The dust collecting assembly 10 is provided with an air outlet 12;

a motor assembly 20, which is provided with a motor air inlet 21;

The filter element 30 is arranged between the air outlet 11 and the motor air inlet 21;

The motor air inlet hood 40 is connected to the dust collecting assembly 10 and the motor assembly 20 . The motor air inlet hood 40 is provided with a deflector 50 , and the air deflector 50 is close to the opening of the dust collecting assembly 10 It is a first opening 51 , the first opening 51 communicates with the air outlet 12 , the opening of the air guide 50 close to the motor assembly 20 is a second opening 52 , and the second opening 52 communicates with the motor air inlet 21 . ; The cross-sectional area of the first opening 51 is smaller than the cross-sectional area of the second opening 52 , and the cross-sectional area of the air guide member 50 is gradual along the direction of the central axis of the air guide member 50 .

In the present invention, the cross-sectional area of the air guide 50 is gradually changed along the direction of the central axis of the air guide 50, the first opening 51 near the dust collecting assembly 10 is smaller, and the second opening 52 near the motor assembly 20 is larger, reducing the energy loss, thereby reducing the power and efficiency loss of the whole machine.

In another embodiment of the present invention, the vacuum cleaner 1 is a dust cup type vacuum cleaner, and the dust collecting assembly 10 includes a dust cup 11 , a cyclone separation structure 13 and a dust holding pipe 14 arranged in the dust cup 11 , The air flow reaches the air outlet 12 after passing through the cyclone separation structure 13 and the dust holding pipe 14 . In addition, if the vacuum cleaner 1 is a dust bag type vacuum cleaner, the dust collecting assembly 10 includes a dust box (not shown) and a dust bag arranged in the dust box, and the air outlet 12 is arranged in the dust box superior.

In another embodiment of the present invention, the vacuum cleaner 1 is an upright vacuum cleaner, and the vacuum cleaner 1 further includes: a floor brush assembly 60 and a handle assembly 70, and the handle assembly 70 may include a hose and a plug tube. The communication state between the floor brush assembly 60 or the handle assembly 70 and the dust collecting assembly 10 can be set according to different usage environments. For example, when the vacuum cleaner 1 is used to clean the floor, the floor brush assembly 60 can be communicated with the dust collecting assembly 10 through the handle assembly 70 . In the dust collecting assembly 10, the air flow containing dust passes through the floor brush assembly 60, the handle assembly 70, the dust collecting assembly 10, the air guide 50, the filter element 30, and the motor assembly 20 in sequence and then is discharged; the vacuum cleaner 1 is used for off-the-ground cleaning At this time, the floor brush assembly 60 does not work, and the air flow containing dust passes through the handle assembly 70 , the dust collecting assembly 10 , the air guide member 50 , the filter member 30 , and the motor assembly 20 and then is discharged.

In another embodiment of the present invention, the motor air inlet hood 40 is locked above the motor assembly 20 by a fastener, and the dust collecting assembly 10 is detachably connected above the motor air inlet hood 40 . The positional relationship between the dust collecting assembly 10, the motor air inlet hood 40, and the motor assembly 20 can be determined according to needs, and is not limited to the upper, middle, and lower positional relationships, and only needs to satisfy the relationship of fluid communication with each other. .

In another embodiment of the present invention, the filter element 30 may be a filter sponge or a filter hypa. The filter element 30 is located in the motor air inlet hood 40 , and the filter element 30 may be located outside the air guide element 50 or installed in the air guide element 50 .

In another embodiment of the present invention, the air guide 50 and the motor air inlet cover 40 are formed separately. In addition, the air guide member 50 is integrally formed with the motor air inlet cover 40 .

In another embodiment of the present invention, a holding portion 53 is provided on the flow guide member 50 near the second opening 52 , and the filter member 30 is held on the flow guide member through the holding portion 53 . within 50. In the present invention, the filter element 30 is assembled into the guide element 50. When cleaning the filter element 30, the filter element 30 can be removed with the aid of the guide element 50. The operation is convenient and the operator does not directly contact the dirt.

In another embodiment of the present invention, the filter element 30 is located outside the flow guide element 50 , and the filter element 30 covers the second opening 52 .

In another embodiment of the present invention, the inner wall of the flow guide member 50 is an arc-shaped transition surface or a conical transition surface.

In another embodiment of the present invention, the tangential direction of the arc-shaped transition surface close to the first opening 51 or the second opening 52 is consistent with the airflow direction of the air outlet 12 . In the present invention, the tangential direction of the arc-shaped transition surface close to the first opening 51 or the second opening 52 is consistent with the airflow direction of the air outlet, so that the airflow flows from the dust collecting assembly 10 to the motor assembly 20 during the process , the airflow direction will not change drastically, and the diversion will be smoother.

In another embodiment of the present invention, the air guide is integrated at the bottom of the dust collecting assembly, and the present invention also provides a vacuum cleaner, comprising:

In another embodiment of the present invention, the inner wall of the flow guide is an arc-shaped transition surface or a conical transition surface.

In another embodiment of the present invention, the dust cup and the deflector are integrally formed. .

To sum up, in the present invention, the cross-sectional area of the flow guide is gradually changed along the direction of the central axis of the flow guide. loss, thereby reducing the power and efficiency loss of the whole machine. In the present invention, the filter element is assembled into the guide element, and the filter element can be removed with the help of the guide element when cleaning the filter element. The operation is convenient and the operator does not directly contact the dirt. In the present invention, the tangential direction of the arc-shaped transition surface close to the first opening or the second opening is consistent with the airflow direction of the air outlet, so that the airflow direction is different when the airflow flows from the dust collecting assembly to the motor assembly. It will change drastically, and the diversion will be smoother.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims

A vacuum cleaner, characterized in that it includes:

a dust collecting assembly (10), which is provided with an air outlet (12);

a motor assembly (20), which is provided with a motor air inlet (21);

a filter element (30), which is arranged between the air outlet (11) and the motor air inlet (21);

A motor air inlet hood (40), which connects the dust collecting assembly (10) and the motor assembly (20), the motor air inlet hood (40) is provided with a flow guide (50), and the guide The opening of the flow member (50) close to the dust collecting assembly (10) is a first opening (51), the first opening (51) communicates with the air outlet (12), and the flow guide member (50) is close to the motor assembly The opening of (20) is a second opening (52), and the second opening (52) communicates with the motor air inlet (21); the cross-sectional area of the first opening (51) is smaller than that of the second opening (52) ), and the cross-sectional area of the air guide (50) gradually changes along the direction of the central axis of the air guide (50).
The vacuum cleaner according to claim 1, characterized in that: the dust collecting assembly (10) comprises a dust cup (11), a cyclone separation structure (13) and a dust holding pipe (13) arranged in the dust cup (11). 14), the air flow reaches the air outlet (12) after passing through the cyclone separation structure (13) and the dust holding pipe (14).
The vacuum cleaner according to claim 1, characterized in that: the air guide (50) and the motor air inlet cover (40) are formed separately.
The vacuum cleaner according to claim 1, characterized in that: a holding part (53) is provided on the air guide (50) near the second opening (52), and the filter (30) passes through the card The holding portion (53) is held in the air guide member (50).
The vacuum cleaner according to claim 1, wherein the filter element (30) is located outside the flow guide element (50), and the filter element (30) covers the second opening (52).
The vacuum cleaner according to claim 1, characterized in that: the inner wall of the air guide (50) is an arc-shaped transition surface or a conical transition surface.
The vacuum cleaner according to claim 1, wherein the arc-shaped transition surface is close to the tangential direction of the first opening (51) or the second opening (52) and the airflow of the air outlet (12). the same direction.
A vacuum cleaner, characterized in that it includes:

The dust collection assembly includes a dust cup and a flow guide, the flow guide is protruded outside the dust cup, the opening of the flow guide close to the dust collection assembly is a first opening, and the first opening communicates with the dust collector. In the dust cup, the opening of the air guide member close to the motor assembly is a second opening; the cross-sectional area of the first opening is smaller than the cross-sectional area of the second opening, and the cross-sectional area of the air guide member is along the direction of the guide member. The direction of the central axis of the flow piece is gradually changed;

a motor assembly, which is provided with a motor air inlet, and the motor air inlet communicates with the second opening;

The filter element is arranged between the second opening and the air inlet of the motor.
The vacuum cleaner according to claim 8, wherein the inner wall of the air guide is an arc-shaped transition surface or a conical transition surface.
The vacuum cleaner according to claim 8, wherein the dust cup and the air guide are integrally formed.