Vacuum cleaner air duct structure and vacuum cleaner

Abstract

The present invention relates to a vacuum cleaner air duct structure and a vacuum cleaner, which belongs to the field of household electrical appliance technology and is used to solve the problem of poor dust guiding effect of existing vacuum cleaners. The vacuum cleaner air duct structure of the present invention includes an air guide part, a dust cup, a motor assembly and an exhaust part. The dust-laden gas enters the dust cup from the air guide part, is filtered and dust-removed in the dust cup, and the filtered gas is guided out of the vacuum cleaner by the exhaust part under the suction of the motor assembly. The present invention provides an air guide part so that the dust-laden gas is guided into the dust cup as quickly as possible under the guiding action of the air guide part, so as to improve the dust removal effect of the vacuum cleaner; the first air flow channel of the air guide part is a non-linear channel inclined downward, which can prevent larger dust particles from being deposited in the air guide part; the area of ​​the first inlet is smaller than the area of ​​the first inlet, so that the dust-laden gas is introduced into the dust cup as quickly as possible, thereby improving the dust removal efficiency of the vacuum cleaner.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a vacuum cleaner air duct structure and a vacuum cleaner. Background Art

[0002] In existing vacuum cleaners, dust-laden airflow directly enters the dust collecting cup from the air inlet at the bottom, and no air inlet channel is provided between the air inlet and the dust collecting cup, resulting in poor dust guiding effect, thereby affecting the dust removal effect of the vacuum cleaner. Summary of the Invention

[0003] In view of the above analysis, the embodiments of the present invention aim to provide a vacuum cleaner air duct structure and a vacuum cleaner, so as to solve the problem of poor dust guiding effect of existing vacuum cleaners.

[0004] On the one hand, the present invention provides a vacuum cleaner air duct structure, including an air guide part, a dust cup, a motor assembly and an exhaust part. The dust-laden gas enters the dust cup from the air guide part, is filtered and dust-removed in the dust cup, and the filtered gas is discharged from the vacuum cleaner through the exhaust part under the suction force of the motor assembly.

[0005] Furthermore, the air guide portion is provided with a first air flow channel for air flow to pass through, and the first air flow channel is connected to the dust collecting cup;

[0006] The first air flow channel is provided with a first inlet and a first outlet. The position of the first inlet is higher than the position of the first outlet, and the area of ​​the first inlet is smaller than the area of ​​the first outlet.

[0007] Furthermore, the first air flow channel is a non-linear channel inclined downward.

[0008] Furthermore, the bottom wall surface of the first air flow channel includes a first inclined surface and a second inclined surface, and the second inclined surface is located below the first inclined surface.

[0009] Furthermore, the inclination angle of the first inclined surface is smaller than the inclination angle of the second inclined surface.

[0010] Furthermore, the bottom wall surface of the first air flow channel is a downwardly inclined streamlined curved surface or a downwardly inclined arc-shaped surface.

[0011] Furthermore, a dust detection component is provided in the first air flow channel.

[0012] Furthermore, the dust cup includes a dust cup body and a filter assembly;

[0013] A dust collecting cavity is provided in the dust collecting cup body, and a fluid inlet and a fluid outlet communicated with the dust collecting cavity are opened in the dust collecting cup body;

[0014] The filter assembly is located in the dust collecting chamber and covers the fluid outlet.

[0015] Furthermore, the filter assembly is cylindrical in shape;

[0016] The bottom plate of the dust collecting cup body is located below the fluid inlet. The bottom plate and the top plate of the dust collecting cup body are flat plates parallel to the horizontal plane. The rear plate of the dust collecting cup body is an arc-shaped plate tangentially connected to the bottom plate and the top plate.

[0017] Furthermore, the exhaust part includes a side exhaust part and a lower exhaust part, and the airflow discharged from the motor assembly is guided out of the vacuum cleaner through the side exhaust part and the lower exhaust part.

[0018] On the other hand, the present invention provides a vacuum cleaner comprising the above-mentioned vacuum cleaner air duct structure and a casing, wherein the vacuum cleaner air duct structure is located inside the casing.

[0019] Furthermore, the vacuum cleaner includes a roller brush assembly and a sterilization assembly. The sterilization assembly is located behind the roller brush assembly. The dust cup and motor assembly are located behind the sterilization assembly. The filter assembly of the dust cup and the motor assembly are coaxially arranged laterally in the casing.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) By providing an air guide portion, the dust-laden gas is quickly guided into the dust collecting cup under the guidance of the air guide portion, thereby improving the dust removal effect of the vacuum cleaner;

[0022] (2) The first air flow channel of the air guide portion is a non-linear channel inclined downward, which can prevent larger dust particles from being deposited in the air guide portion; the area of ​​the first inlet is smaller than the area of ​​the first inlet, so that the dust-laden gas is quickly introduced into the dust collecting cup, thereby improving the dust removal efficiency of the vacuum cleaner;

[0023] (3) The rear plate of the dust collecting cup is an arc-shaped plate, and the arc-shaped plate is coaxially arranged with the filter assembly, so that the dust-laden fluid is rotated radially and introduced into the filter assembly, thereby improving the dust removal effect of the vacuum cleaner;

[0024] (4) By providing a side exhaust portion and a lower exhaust portion, the airflow discharged from the motor assembly is directed out of the vacuum cleaner from two directions, thereby increasing the exhaust area of ​​the airflow and significantly reducing the noise caused by the accumulation of airflow;

[0025] (5) The second airflow channel is a non-linear channel, which greatly reduces the impact force or flow velocity of the airflow rushing toward the side exhaust port, thereby reducing the airflow noise; a mesh noise reduction plate is provided at the second entrance of the second airflow channel to further improve the noise reduction effect of the vacuum cleaner;

[0026] (6) The air inlet, sterilization port, and lower exhaust port are arranged in sequence from front to back on the bottom end face of the vacuum cleaner housing. The surface to be cleaned is first beaten by the roller brush assembly at the air inlet to remove dust and hair, and then the sterilization assembly at the sterilization port is used to remove mites and sterilize. Finally, the high-temperature air flow at the lower exhaust port is blown for high-temperature disinfection, so that the surface to be cleaned can achieve three different levels of progressive cleaning.

[0027] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of the present invention will be described in the following description, and some advantages will become apparent from the description or be learned through practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are only for the purpose of illustrating particular embodiments and are not to be considered limiting of the present invention. Like reference symbols denote like parts throughout the drawings.

[0029] Figure 1 FIG1 is a structural diagram of a vacuum cleaner in a specific embodiment (I);

[0030] Figure 2 FIG2 is a structural diagram of a vacuum cleaner in a specific embodiment;

[0031] Figure 3 is a partial cross-sectional view of a vacuum cleaner in a specific embodiment (1);

[0032] Figure 4 It is a partial cross-sectional view (2) of the vacuum cleaner in a specific embodiment (the arrows in the figure indicate the flow direction of the airflow);

[0033] Figure 5 is a partial cross-sectional view of a vacuum cleaner in a specific embodiment (3);

[0034] Figure 6 It is a partial cross-sectional view of the vacuum cleaner in a specific embodiment (four);

[0035] Figure 7 is a partial cross-sectional view of a vacuum cleaner in a specific embodiment (V);

[0036] Figure 8 is a partial cross-sectional view of a vacuum cleaner in a specific embodiment (six);

[0037] Figure 9 It is a partial cross-sectional view of the vacuum cleaner in a specific embodiment (VII);.

[0038] Reference numerals:

[0039] 1-air guide part; 11-first inclined surface; 12-second inclined surface; 2-dust cup; 201-fluid inlet; 21-filter assembly; 22-dust collecting chamber; 3-motor assembly; 31-suction motor; 311-air outlet; 32-motor cover; 321-first air outlet; 322-second air outlet; 4-side exhaust part; 401-side exhaust outlet; 41-mesh noise reduction plate; 42-middle baffle; 5-lower exhaust part; 501-lower exhaust outlet; 6-roller brush assembly; 601-air inlet; 602-connecting port; 61-roller brush; 62-roller brush cover; 7-sterilization assembly; 701-sterilization port; 71-sterilization lamp; 72-reflector. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0041] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the term "connected" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0042] The terms "top," "bottom," "above," "below," and "on" used throughout the description refer to relative positions of components of a device, such as the relative positions of top and bottom substrates within a device. It will be understood that devices are multifunctional regardless of their orientation in space.

[0043] The working surface of the present invention can be a plane or a curved surface, can be inclined, or can be horizontal. For the convenience of description, the embodiment of the present invention is placed on a horizontal surface and used on the horizontal surface, and "high and low" and "up and down" are defined in this way.

[0044] Example 1

[0045] This embodiment provides a vacuum cleaner air duct structure, such as Figures 1-9 As shown, it is arranged in a vacuum cleaner. Dust-laden gas entering the vacuum cleaner is filtered and dust-removed within the air duct structure before being discharged from the vacuum cleaner. The vacuum cleaner air duct structure includes an air guide 1, a dust cup 2, a motor assembly 3, and an exhaust section. Dust-laden gas enters the dust cup 2 from the air guide 1, where it is filtered and dust-removed. The filtered gas is then discharged from the vacuum cleaner through the exhaust section under the suction force of the motor assembly 3.

[0046] Compared with the prior art, the air duct of the vacuum cleaner of this embodiment is provided with an air guide portion 1 so that the dust-laden gas is guided into the dust collecting cup 2 as quickly as possible under the guiding action of the air guide portion 1, thereby improving the dust removal effect of the vacuum cleaner.

[0047] The air guide part 1 is provided with a first air flow channel for air flow to pass through. The first air flow channel is connected to the dust collecting cup 2. The air guide part 1 is sealed with the dust collecting cup 2 so that the dust-laden gas entering the vacuum cleaner enters the dust collecting cup 2 under the guiding action of the air guide part 1.

[0048] The first airflow channel has a first inlet and a first outlet. Dust-laden air entering the vacuum cleaner enters the air guide 1 through the first inlet, and exits the air guide 1 through the first outlet. The first inlet is positioned higher than the first outlet, preventing larger dust particles from settling in the air guide 1. Instead, larger dust particles flow from the air guide 1 into the dust cup 2 under the influence of gravity and the thrust of the airflow. To ensure that airflow is directed into the dust cup 2 as quickly as possible, the area of ​​the first inlet is smaller than that of the first outlet.

[0049] Specifically, the first airflow channel is a non-linear channel that slopes downward and gradually expands from the first inlet to the first outlet. To increase the gravitational potential energy of dust particles falling into the air guide portion 1, the top of the first inlet extends horizontally to the top of the first outlet, and the bottom of the first inlet is higher than the bottom of the first outlet. That is, the top wall of the first airflow channel is parallel to the horizontal plane, and the bottom wall of the first airflow channel slopes downward.

[0050] In this embodiment, the top wall surface of the first air flow channel is a plane parallel to the horizontal plane, the two side wall surfaces of the first air flow channel are planes perpendicular to the top wall, and the bottom wall surface of the first air flow channel is a surface inclined downward. Specifically, the bottom wall surface of the first air flow channel includes a first inclined surface 11 and a second inclined surface 12. The second inclined surface 12 is located below the first inclined surface 11 and is connected to the lower end of the first inclined surface 11, that is, the bottom of the first inlet extends to the bottom of the first outlet through the first inclined surface 11 and the second inclined surface 12 in sequence.

[0051] Furthermore, the inclination angle of the first inclined surface 11 is smaller than the inclination angle of the second inclined surface 12 to ensure that the dust particles falling on the bottom of the air guide portion 1 can all fall into the dust collecting cup 2.

[0052] It should be noted that the bottom wall surface of the first air flow channel can also be set as a streamlined curved surface that is always inclined downward or an arc-shaped surface that is always inclined downward.

[0053] In order to detect the content of dust particles in the airflow, a dust detection component is provided in the first airflow channel. Specifically, the dust detection component includes a light emitting end and a light receiving end. The light emitting end and the light receiving end are arranged on the side wall of the first airflow channel opposite to each other. The light receiving end can receive the light emitted by the light emitting end. By testing the intensity of the light emitted by the light emitting end and the intensity of the light received by the light receiving end, the content, level and other data of the dust particles in the airflow passing through the light emitting end and the light receiving end can be determined through calculation. The vacuum cleaner controls the operating frequency of the motor component according to these data, and the vacuum cleaner realizes variable frequency control dust removal, making the vacuum cleaner dust removal more reasonable and energy-saving.

[0054] The dust cup 2 includes a dust cup body and a filter assembly 21. A dust collecting chamber 22 is provided in the dust cup body. The dust collecting chamber 22 is used to store dust. The dust cup body is provided with a fluid inlet 201 and a fluid outlet connected to the dust collecting chamber 22. The filter assembly 21 is located in the dust collecting chamber 22 and covers the fluid outlet, so that the dust-laden airflow entering the dust cup 2 must be filtered and dust-removed by the filter assembly 21 before being discharged from the fluid outlet, and the dust is stored in the dust cup body.

[0055] The fluid inlet 201 of the dust cup 2 is positioned correspondingly to the first outlet, and its shape and dimensions are identical to those of the first outlet, allowing dust-laden gas and large dust particles to quickly and unimpededly enter the dust cup. In this embodiment, the fluid inlet 201 is located on the front panel of the dust cup, the rear end of the air guide 1 is sealed to the outside of the front panel of the dust cup, and the first outlet and the fluid inlet 201 are in continuous communication.

[0056] The fluid outlet is opened on the right plate of the dust collecting cup body, the filter assembly 21 can be removably installed on the inner side of the right plate of the dust collecting cup body, and the sealing cover is provided on the fluid outlet, so that the dust-laden gas entering the dust collecting chamber 22 must be filtered and dust-removed by the filter assembly 21 before being discharged from the fluid outlet.

[0057] The filter assembly 21 is cylindrical in shape. Specifically, it includes a filter screen and a filter HEPA. The filter HEPA is located within the filter screen. The filter screen is cylindrical, closed at one end and provided with a filter outlet at the other end for gas flow. The cylinder wall is perforated, allowing gas to enter the filter assembly through the mesh holes. The filter outlet is sealed and connected to the fluid outlet, and the shape and size of the filter outlet are the same as those of the fluid outlet. The filter HEPA is affixed to the inner sidewall of the filter screen, covering all the mesh holes.

[0058] The bottom plate of the dust cup body is located below the fluid inlet 201. The bottom plate and the top plate of the dust cup body are flat plates parallel to the horizontal plane. The rear plate of the dust cup body is an arc-shaped plate tangentially connected to the bottom plate and the top plate. The arc-shaped plate is coaxially arranged with the filter assembly 21. The radius of the arc-shaped plate is greater than the radius of the filter assembly 21. The airflow is rotated and radially introduced into the filter assembly 21 through the guidance of the bottom plate and the rear plate of the dust cup, thereby improving the dust removal effect of the vacuum cleaner.

[0059] In this embodiment, the bottom plate, top plate, and rear plate of the dust collecting cup are at the same distance from the filter assembly 21 , and the filter assembly 21 is located in the center of the dust collecting chamber 22 so that the gas can be better guided to the filter assembly 21 .

[0060] After the dust-laden gas enters the dust collecting cup 2 from the fluid inlet 201, it is guided by the bottom plate and the rear plate (arc-shaped plate), so that the dust-laden gas rotates radially into the filter assembly 21 for filtering and dust removal. The dust-removed gas is discharged from the dust collecting cup along the axial direction through the filter outlet of the filter assembly 21 and the fluid outlet of the dust collecting cup, and finally all flows to the motor assembly 3.

[0061] The motor assembly 3 is located on the right side of the dust cup 2 , and the fluid outlet is connected to the air collecting port of the motor assembly 3 , so that all the gas flowing out of the dust cup 2 flows to the motor assembly 3 .

[0062] It should be noted that the air duct structure of the vacuum cleaner is located inside the casing of the vacuum cleaner, that is, the air guide part 1, the dust cup 2, the motor assembly 3 and the exhaust part are located inside the casing of the vacuum cleaner, and the motor assembly 3 is installed horizontally from left to right in the casing, that is, the air flow flows from the left end to the right end of the motor assembly 3, and the air collection port of the motor assembly 3 is located at the left end of the motor assembly.

[0063] The exhaust unit includes a side exhaust unit 4 and a lower exhaust unit 5. The side exhaust unit 4 is located to the right of the motor assembly 3, and the lower exhaust unit 5 is located below the motor assembly 3. The airflow exhausted from the motor assembly 3 is guided out of the vacuum cleaner through the side exhaust unit 4 and the lower exhaust unit 5. By providing the side exhaust unit 4 and the lower exhaust unit 5, the airflow exhausted from the motor assembly 3 is guided out of the vacuum cleaner from two directions, increasing the exhaust area of ​​the airflow and significantly reducing the noise caused by the backflow of the air.

[0064] The side exhaust port 401 of the side exhaust part 4 is opened on the side wall of the casing, and the side exhaust port 401 is located on the right side of the motor assembly 3; the lower exhaust port 501 of the lower exhaust part 5 is opened on the bottom end surface of the casing, and the lower exhaust port 501 is located below the motor assembly 3.

[0065] The motor assembly 3 includes a suction motor 31 and a motor cover 32. The motor cover 32 is provided with a cavity for installing the suction motor 31. The motor cover 32 is provided with air outlets connected to the side exhaust part 4 and the lower exhaust part 5, which are the first air outlet 321 and the second air outlet 322 respectively. The first air outlet 321 is connected to the side exhaust part 4, and the second air outlet 322 is connected to the lower exhaust part 5. That is, the airflow discharged from the suction motor 31 flows to the side exhaust part 4 and the lower exhaust part 5 through the first air outlet 321 and the second air outlet 322 on the motor cover 32.

[0066] The suction motor 31 is provided with two or more air outlets 311. The airflow discharged from the air outlets 311 is then directed to the side exhaust unit 4 and the lower exhaust unit 5 through the first air outlet 321 and the second air outlet 322. In this embodiment, the suction motor 31 is provided with three air outlets 311, distributed in an equilateral triangle at the rear of the suction motor 31, with the center of the equilateral triangle located on the axis of the suction motor 31, so that the airflow is evenly discharged from the rear of the suction motor 31.

[0067] In order to guide the airflow discharged by the suction motor to the side exhaust part 4 and the lower exhaust part 5 as quickly as possible, the second air outlet 322 is opened on the side wall of the motor cover 32. Furthermore, the second air outlet 322 is arranged opposite to at least one air outlet 311 of the suction motor 31, so that a part of the airflow discharged by the suction motor is directly guided to the lower exhaust part 5 by the second air outlet 322; the first air outlet 321 is located on the right end face of the motor cover 32. Furthermore, the right end of the motor cover 32 is completely open, and the open opening is the first air outlet 321, so that the remaining part of the airflow discharged by the suction motor (excluding the airflow guided by the second air outlet 322) is directly guided to the side exhaust part 4 by the first air outlet 321.

[0068] The side exhaust part 4 is located inside the casing, on the right side of the motor assembly 3. The side exhaust part 4 is provided with a second air flow channel. The second air flow channel is provided with a second inlet and a second outlet. The second inlet is communicated with the first air outlet 321. The second outlet is a side exhaust port 401 opened on the side wall of the casing.

[0069] In order to further improve the noise reduction effect of the vacuum cleaner, a mesh noise reduction plate 41 is provided at the second inlet. The airflow guided out from the first air outlet 321 enters the second air flow channel through the mesh on the mesh noise reduction plate 41, and is then guided out of the vacuum cleaner through the side exhaust port 401.

[0070] In order to further improve the noise reduction effect of the side exhaust part 4, the second air flow channel is a non-linear channel. Specifically, the second air flow channel is a curved channel, which can greatly reduce the impact or flow rate of the air flow rushing to the side exhaust port 401, thereby reducing the air flow noise.

[0071] In this embodiment, an intermediate baffle 42 is provided between the mesh noise reduction plate 41 and the side air outlet 401, transforming the linear channel into a curved channel. Specifically, a linear channel is provided between the mesh noise reduction plate 41 and the side wall of the housing where the side air outlet 401 is located. A second airflow channel is formed by providing the intermediate baffle 42 within the linear channel. The intermediate baffle 42 is connected to one side wall of the linear channel, leaving a gap for airflow between the intermediate baffle 42 and the opposite side wall (i.e., the side wall opposite the side wall connected to the intermediate baffle 42). The intermediate baffle 42 is parallel to the mesh noise reduction plate 41 and the side wall of the housing where the side air outlet 401 is located. To further enhance the noise reduction effect of the second airflow channel, the intermediate baffle 42 is projected toward the mesh noise reduction plate 41, completely covering all mesh holes on the mesh noise reduction plate 41. This ensures that all airflow introduced from the mesh noise reduction plate 41 is directed through the intermediate baffle 42 before being discharged through the side air outlet 401.

[0072] It should be noted that the intermediate baffle 42 in this embodiment can also completely cover the side air outlet 401 when projected in the direction of the side air outlet 401, so that the intermediate baffle 42 can achieve a better air guide and noise reduction effect.

[0073] The side air outlet 401 includes a plurality of strip-shaped air outlet holes, and the strip-shaped air outlet holes are parallel to the bottom plate of the housing, so that the air flow can be discharged from the first air flow channel more smoothly and quickly.

[0074] The lower exhaust part 5 is located inside the casing and below the motor assembly 3. The lower exhaust part 5 is provided with a third air flow channel. The third air flow channel is provided with a third inlet and a third outlet. The third inlet is communicated with the second air outlet 322. The third outlet is a lower exhaust port 501 opened on the bottom plate of the casing.

[0075] Since the second air outlet 322 corresponds to the position of at least one air outlet 311, the airflow discharged from at least one air outlet 311 of the suction motor directly enters the third air flow channel through the second air outlet 322, and the airflow is then discharged from the casing from the lower air outlet 501 and blown toward the surface of the object to be cleaned.

[0076] The airflow from the lower exhaust port 501 is a high-temperature airflow discharged from the suction motor 31. The high-temperature airflow is guided out through the lower exhaust port 501 and then blown onto the surface to be cleaned, thereby performing high-temperature disinfection on the surface to be cleaned and improving the cleaning effect of the vacuum cleaner.

[0077] In this embodiment, the lower air outlet 501 includes a plurality of through holes, and the plurality of through holes are arranged in a row.

[0078] Example 2

[0079] This embodiment provides a vacuum cleaner, such as Figures 1-9 As shown, it includes the vacuum cleaner air duct structure and the casing described in Example 1, and the vacuum cleaner air duct structure is located inside the casing.

[0080] The vacuum cleaner also includes a roller brush assembly 6 and a sterilization assembly 7. The sterilization assembly 7 is located behind the roller brush assembly 6, the dust cup 2 and the motor assembly 3 are located behind the sterilization assembly 7, and the filter assembly 21 is coaxially arranged with the motor assembly 3 in the housing.

[0081] The bottom plate of the housing is provided with an air inlet 601 and a sterilization port 701. The air inlet 601 is located in front of the sterilization port 701, which is in front of the lower exhaust port 501. The air inlet 601 is in sealed communication with the first air flow channel of the air guide 1, so that all dust-laden air entering the vacuum cleaner through the air inlet 601 enters the first air flow channel.

[0082] The roller brush assembly 6 is located directly above the air inlet 601. Specifically, the roller brush assembly 6 includes a roller brush 61, a roller brush cover 62 and a drive motor. The roller brush cover 62 sealing cover is provided on the air inlet 601. The roller brush 61 is located between the roller brush cover 62 and the air inlet 601. The drive motor is connected to the roller brush 61 for driving the roller brush 61 to rotate.

[0083] The roller brush cover 62 is provided with a connecting port 602 , which is located at the top of the roller brush cover 62 . The connecting port 602 is sealed and connected to the first inlet of the first air flow channel so that all dust-laden fluid entering from the air inlet 601 is guided to the first air flow channel from the connecting port 602 .

[0084] The roller brush 61 absorbs hair scattered on the surface to be cleaned during its rotation, preventing the hair from clogging the connecting opening and, in turn, the entire air duct, affecting the dust removal efficiency of the vacuum cleaner. The sealed roller brush cover 62 effectively prevents dust from entering the assembly space within the housing, except for the air duct structure, affecting the operation of other components, and preventing dust from forming static electricity and collecting dust within the housing, thereby damaging the components within the housing.

[0085] The sterilization component 7 is located directly above the sterilization port 701. Specifically, the sterilization component 7 includes a sterilization lamp tube 71 (such as a UV lamp tube) and a reflector 72. The reflector 72 sealing cover is provided on the sterilization port 701. The sterilization lamp tube 71 is located between the sterilization port 701 and the reflector 72. A portion of the light emitted by the sterilization lamp tube 71 can still be emitted from the sterilization port 701 after passing through the reflector 72, thereby enhancing the sterilization effect of the sterilization component 7.

[0086] The air flow discharged from the lower exhaust port 501 is a high-temperature air flow directly discharged from the motor assembly 3. After being discharged from the lower exhaust port 501, the high-temperature air flow blows toward the clean surface that has been cleaned and sterilized by the roller brush assembly 6 and the sterilization assembly 7, further performing high-temperature disinfection on the clean surface, thereby improving the cleaning effect of the vacuum cleaner 7.

[0087] The air inlet 601, the sterilization port 701, and the lower air outlet 501 are arranged in sequence from front to back on the bottom end face of the casing. The surface to be cleaned is first beaten by the roller brush assembly 6 at the air inlet 601 to remove dust and hair, and then the sterilization assembly 7 at the sterilization port 701 is used to remove mites and sterilize. Finally, the high-temperature air flow at the lower air outlet 501 is blown for high-temperature disinfection, so that the surface to be cleaned can achieve three different levels of progressive cleaning.

[0088] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A vacuum cleaner air duct structure, characterized in that: The dust collecting cup (2) comprises an air guide portion (1), a dust collecting cup (2), a motor assembly (3) and an exhaust portion. Dust-laden gas enters the dust collecting cup (2) from the air guide portion (1), is filtered and dust-removed in the dust collecting cup (2), and the filtered gas is guided out of the dust collector by the exhaust portion under the suction of the motor assembly (3). The air guide portion (1) is provided with a first air flow channel for air flow to pass through, and the first air flow channel is connected to the dust collecting cup (2). The first air flow channel is provided with a first inlet and a first outlet, wherein the first inlet is located higher than the first outlet and the area of ​​the first inlet is smaller than the area of ​​the first outlet; The first air flow channel is a non-linear channel slanting downward; The bottom wall surface of the first airflow channel comprises a first inclined surface (11) and a second inclined surface (12), wherein the second inclined surface (12) is located below the first inclined surface (11); the inclination angle of the first inclined surface (11) is smaller than the inclination angle of the second inclined surface (12); The exhaust portion includes a side exhaust portion (4), the side exhaust portion (4) is provided with a second air flow channel, the second air flow channel is provided with a second inlet and a second outlet, the second outlet is a side exhaust port (401) opened on the side wall of the casing; A mesh noise reduction plate (41) is provided at the second entrance. By arranging an intermediate baffle (42) between the mesh noise reduction plate (41) and the side air outlet (401), the second air flow channel is formed into a bent channel; the intermediate baffle (42) is projected in the direction of the mesh noise reduction plate (41) and can completely cover all meshes on the mesh noise reduction plate (41); the intermediate baffle (42) is projected in the direction of the side air outlet (401) and can also completely cover the side air outlet (401).

2. The air duct structure of the vacuum cleaner according to claim 1, characterized in that: A dust detection component is provided in the first air flow channel.

3. The air duct structure of the vacuum cleaner according to claim 1, characterized in that: The dust collecting cup (2) comprises a dust collecting cup body and a filter assembly (21); A dust collecting chamber (22) is provided in the dust collecting cup body, and a fluid inlet (201) and a fluid outlet communicated with the dust collecting chamber (22) are provided in the dust collecting cup body; The filter assembly (21) is located in the dust collecting chamber (22) and covers the fluid outlet.

4. The air duct structure of the vacuum cleaner according to claim 3, characterized in that: The filter assembly (21) is cylindrical in shape; The bottom plate of the dust collecting cup body is located below the fluid inlet (201), the bottom plate and the top plate of the dust collecting cup body are flat plates parallel to the horizontal plane, and the rear plate of the dust collecting cup body is an arc-shaped plate tangentially connected to the bottom plate and the top plate.

5. The air duct structure of a vacuum cleaner according to any one of claims 1 to 4, characterized in that: The exhaust part comprises a lower exhaust part (5), and the airflow exhausted from the motor assembly (3) is guided out of the dust collector via the side exhaust part (4) and the lower exhaust part (5).

6. A vacuum cleaner, characterized in that: The vacuum cleaner comprises the air duct structure and the casing according to any one of claims 1 to 4, wherein the air duct structure of the vacuum cleaner is located inside the casing.

7. The vacuum cleaner according to claim 6, characterized in that The machine further comprises a roller brush assembly (6) and a sterilization assembly (7), wherein the sterilization assembly (7) is located behind the roller brush assembly (6), the dust cup (2) and the motor assembly (3) are located behind the sterilization assembly (7), and the filter assembly (21) of the dust cup (2) and the motor assembly (3) are coaxially arranged transversely in the housing.

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