Cleaning device

Abstract

The utility model relates to cleaning equipment which comprises a dust box assembly and a machine body, and the dust box assembly is located on the upstream of the machine body in the flowing direction of airflow. The machine body comprises a cover body and a driving source located in the cover body, and the driving source is used for providing suction force for air flow to flow; the cover body is provided with a first air inlet, a first air duct, a second air duct and a first air outlet through which air flows in sequence; the first air inlet is located in the first end of the cover body, the first air channel is constructed in the space between the first end and the second end of the cover body, airflow enters the first air channel, flows to the inner side of the second end in the cover body, enters the second air channel after the flowing direction of the airflow is changed, and enters the second air channel after passing through the second air channel. Airflow flows out through a first air outlet in the side part of the cover body; the second end is an opposite end of the first end. By arranging the second air duct on the side of the cover body, the length of the air duct is increased, the airflow speed and airflow pressure can be effectively reduced, airflow noise is further reduced, and the use experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a cleaning equipment with noise reduction. Background Art

[0002] Cleaning equipment can provide suction force to absorb dirt from the external environment and is widely used in various environments such as homes, shopping malls, and industrial production sites. Taking a vacuum cleaner as an example, the dust-laden air flows through the vacuum cleaner's nozzle into the internal dust chamber and is filtered. Large particles of dust or hair will remain in the dust chamber, while the air with less dust will continue to flow downstream and eventually be discharged from the air outlet on the vacuum cleaner. During the operation of the vacuum cleaner, the flow of air is one of the main sources of noise. The high noise seriously affects the user experience. Utility Model Content

[0003] Problems to be solved by utility models

[0004] In order to solve the technical problem of high noise of cleaning equipment, the embodiments of the present disclosure provide a cleaning equipment with noise reduction capability.

[0005] Solutions for solving problems

[0006] The present disclosure provides a cleaning device, the cleaning device comprising:

[0007] A dust box assembly and a machine body, wherein along the flow direction of the airflow, the dust box assembly is located upstream of the machine body;

[0008] The machine body comprises a cover body and a driving source located in the cover body, wherein the driving source is used to provide a suction force for the air flow;

[0009] The cover body comprises: a first air inlet, a first air duct, a second air duct and a first air outlet through which air flows in sequence;

[0010] The first air inlet is located at the first end of the cover body, and the first air duct is constructed in the space between the first end and the second end of the cover body:

[0011] The airflow enters the first air duct, flows in the cover body to the inner side of the second end, changes the flow direction of the airflow, and then enters the second air duct. After passing through the second air duct, the airflow flows out through the first air outlet on the side of the cover body; the second end is the opposite end of the first end.

[0012] Optionally, at least a portion of the air duct formed by the first air duct and the second air duct is U-shaped.

[0013] The first air duct includes a first sub-air duct and a second sub-air duct through which the airflow passes in sequence, and the airflow changes direction in the second sub-air duct and enters the second air duct;

[0014] The second sub-air duct and the second air duct surround at least a portion of the air duct wall of the first sub-air duct, and the second sub-air duct and the second air duct share a portion of the air duct wall with the first sub-air duct.

[0015] Optionally, the driving source is located in the first air duct; the air flow enters the driving source through the first air inlet, and the air flow flowing out of the driving source outlet flows inside the cover body through the first air duct to the second air duct.

[0016] Optionally, the cleaning device further comprises: an inner cover, the inner cover is located in the cover body, and the inner cover comprises: a first cavity and a second cavity located outside the first cavity;

[0017] The first cavity is connected to the outlet of the driving source, the side wall of the first cavity has a second air outlet, the side wall of the second cavity has a third air outlet, and the second air outlet and the third air outlet are staggered along the circumferential position of the inner cover; the airflow from the driving source enters the first cavity and flows from the second air outlet to the second cavity, and the airflow in the second cavity enters the space between the cover body and the inner cover through the third air outlet.

[0018] Optionally, a central axis of the first air inlet is coaxial with a central axis of the driving source.

[0019] Optionally, the cover body comprises: a front cover, an outer cover and a rear cover, wherein the outer cover is located between the front cover and the rear cover and is connected to the front cover and the rear cover respectively;

[0020] The front cover has the first air inlet, and the first air duct includes: a third cavity formed by the front cover and the outer cover, and a part of a fourth cavity formed by the outer cover and the rear cover; another part of the fourth cavity is formed as the second air duct.

[0021] Optionally, the outer cover has a through hole connecting the third cavity and the fourth cavity, the driving source and the inner cover are both located in the third cavity, and there is a gap between the through hole (122) and the entrance of the second air duct (108).

[0022] Optionally, the outer cover comprises: an outer cover bottom wall, a first side wall extending around the outer cover bottom wall along the axial direction of the driving source, and a second side wall located outside the side of the first side wall, the through hole is located on the outer cover bottom wall, and the first air outlet is located on the second side wall;

[0023] The fourth cavity includes: a sub-cavity located between the bottom wall of the outer cover and the rear cover, and a spacing space between the second side wall and the first side wall, the sub-cavity forms a part of the first air duct, and the spacing space forms the second air duct.

[0024] Optionally, the side wall of the first cavity and the front cover are both nestedly connected with the driving source to fix the driving source in the third cavity.

[0025] Optionally, the first cavity has a first opening on a side facing the driving source, and the driving source covers the first opening;

[0026] The cleaning device further includes a first sealing member, which is located between the end surface of the side wall of the first cavity and the driving source to seal the connection between the driving source and the side wall of the first cavity.

[0027] Optionally, the second cavity has a second opening on a side facing the driving source, and the front cover covers the second opening;

[0028] The cleaning device further comprises: a second sealing member, wherein the second sealing member is located between the front cover and the second cavity side wall to seal a connection between the front cover and the second cavity side wall.

[0029] Optionally, the cleaning device further comprises:

[0030] a third sealing member, the third sealing member being located between the front cover and the outer cover to seal a connection between the front cover and the outer cover; and / or,

[0031] A fourth sealing member is located between the outer cover and the rear cover to seal a connection between the outer cover and the rear cover.

[0032] Optionally, the front cover is respectively connected to the outer cover and the rear cover via a fixing position, wherein the fixing position is located outside the cover body.

[0033] Optionally, the fixing portion includes a buckle.

[0034] Optionally, the cleaning device further comprises: a sound absorbing member, wherein the sound absorbing member is located at least at the following positions: the second cavity of the inner cover, the outer wall of the driving source, and the inner wall of the outer cover.

[0035] Optionally, the front cover has a first mounting position for mounting an air inlet filter, and the first mounting position surrounds the first air inlet; and / or,

[0036] The outer cover has a second installation position for installing an air outlet filter, and the second installation position surrounds the first air outlet.

[0037] Optionally, a protrusion is provided on the outer circumference of the air outlet filter, and the second installation position has an annular side wall and a groove located on the annular side wall, and the protrusion can be inserted into the groove to connect the air outlet filter and the second installation position.

[0038] Optionally, the cover body includes: an air duct connected to the first air duct; the cleaning device also includes: a circuit board assembly for controlling the operation of the driving source, and the heat dissipation part of the circuit board assembly is at least partially inserted into the air duct.

[0039] Optionally, the cover body further includes: a fifth sealing member, wherein the fifth sealing member is sealingly connected to the heat dissipation portion and the air guide pipe respectively.

[0040] Optionally, the inner wall of the first air duct has a fourth air outlet, the air duct is connected to the first air duct through the fourth air outlet, and the fourth air outlet is a plurality of strip-shaped holes distributed on the inner wall of the first air duct.

[0041] Optionally, the dust box assembly further includes:

[0042] a dust box, the dust box having a dust cavity communicated with the first air inlet, the dust cavity being located upstream of the first air inlet and having a third opening;

[0043] a cover body, wherein the cover body covers the third opening;

[0044] A mounting frame is located in the dust chamber and is used for mounting a dust cup or a dust bag.

[0045] Optionally, the machine body further comprises: an air outlet filter, and an aromatherapy installation position located on the air outlet filter;

[0046] The air outlet filter is used to filter the airflow flowing out from the first air outlet to the external environment. The aromatherapy installation position is located in the airflow outflow path, and the aromatherapy installation position is used to install the aromatherapy component.

[0047] Optionally, the air outlet filter is a HEPA, and the aromatherapy mounting position is a mounting hole formed on an external filter frame of the HEPA.

[0048] Optionally, the hole wall of the mounting hole has a notch for taking in and placing the aromatherapy component.

[0049] Optionally, the aromatherapy installation position is located at the center of the first air outlet.

[0050] Optionally, the aromatherapy element is ring-shaped.

[0051] Optionally, the depth of the mounting hole is greater than the thickness of the aromatherapy component.

[0052] Optionally, the hole wall of the mounting hole has: a limiting buckle for limiting the aromatherapy component in the mounting hole.

[0053] Optionally, the limiting buckle has an inclined surface for guiding the aromatherapy component to be inserted into the mounting hole.

[0054] Optionally, the machine body further comprises an air outlet cover located outside the air outlet filter, and the air outlet cover is located on the side of the cleaning device.

[0055] Effect of utility model

[0056] In the cleaning device provided by the embodiment of the present disclosure, after the airflow enters the driving source in the cover body through the first air inlet, it flows into the second air duct through the first air duct and finally flows out through the first air outlet on the side. By arranging the second air duct on the side of the cover body, the length of the air duct is increased, the airflow speed and airflow pressure can be effectively reduced, and the airflow noise is further reduced, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1a It is a cross-sectional view of some optional embodiments of the cleaning device disclosed herein;

[0058] Figure 1b It is a partial structural schematic diagram of some optional embodiments of the cleaning device of the present disclosure, wherein a partial exploded view of the air outlet filter, the air outlet cover and the body is shown;

[0059] Figure 1c This is a schematic diagram of a partial structure of a cleaning device in an optional embodiment of the present disclosure after the aromatherapy component and the air outlet filter component are assembled;

[0060] Figure 1d for Figure 1b In the embodiment, another perspective structural diagram of the cleaning device;

[0061] Figure 2 It is a schematic diagram of a partial structure of a cleaning device in some optional embodiments of the present disclosure;

[0062] Figure 3 for Figure 2 A cross-sectional view of the structure of the middle fuselage;

[0063] Figure 4 for Figure 2 Partial structural explosion diagram of the motor, inner cover and the connection between the two;

[0064] Figure 5 for Figure 4 A schematic diagram of the structure of the middle inner cover;

[0065] Figure 6 for Figure 2Exploded view of the middle front cover, inner cover and part of the structure where the two are connected;

[0066] Figure 7 Shown include Figure 2 Partial structural exploded view of the middle front cover, inner cover and outer cover;

[0067] Figure 8 for Figure 2 Schematic diagram of the structure of the middle and outer covers;

[0068] Fig. 9 Shows a different Figure 8 Another perspective structural diagram of the outer cover of the perspective;

[0069] Fig.10 for Figure 2 Partial structural explosion diagram of the middle and outer covers, the rear cover and the connection between the two;

[0070] Fig.11 A cross-sectional view of the circuit board assembly and the outer cover at the connection of the air duct is shown.

[0071] Description of Reference Numerals

[0072] 100, machine body; 101, cover body; 101a, first end of cover body; 101b, handle; 101c, first sub-air duct; 101d, second sub-air duct; 102, buckle; 103, first seal; 104, second seal; 105, third seal; 106, fourth seal; 107, sound absorbing member; 108, second air duct; 109, housing of machine body; 110, front cover; 111, first air inlet; 112, first mounting position; 120, outer cover; 121, first air outlet; 122, through hole; 123, air duct; 124, fourth air outlet; 125, bottom wall of outer cover; 126, first side wall; 127, second side wall; 128, filter; 129, second mounting position; 1291, second The groove on the mounting position; 130, rear cover; 130a, the second end of the cover body; 140, circuit board assembly; 141, heat dissipation part; 142, the fifth sealing member; 150, inner cover; 150a, the second cavity; 150b, the first cavity; 151, the outer wall of the inner cover; 151a, the third air outlet; 152, the inner wall of the inner cover; 152a, the second air outlet; 153, the bottom wall of the inner cover; 160, the driving source; 170, the air outlet filter; 171, the aromatherapy mounting position; 172, the raised part; 173, the external filter frame of HEPA; 174, the internal filter; 175, the limit buckle; 176, the inclined surface on the limit buckle; 177; the notch on the wall of the mounting hole; 180, the aromatherapy member; 190, the air outlet cover; 191, the breathable cover;

[0073] 200, dust box assembly; 201, dust chamber; 210, dust box; 220, cover; 230, dust cup; 240, dust box sealing ring; 250, front cover sealing ring; 260, dust cup mounting bracket; 270, dust cup sealing ring; 280, air inlet HEPA. DETAILED DESCRIPTION

[0074] In order to make the technical solutions and beneficial effects of the present disclosure more obvious and easy to understand, the following is a detailed description by listing specific embodiments. The drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meaning as those in the technical field to which the present application belongs.

[0075] In the description of the present disclosure, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of simplified description of the present disclosure, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be understood as a limitation on the present disclosure.

[0076] In the present disclosure, the terms "first" and "second" are used only for the purpose of clear description and should not be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly include at least one of the features. In the description of the present disclosure, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise clearly and specifically defined.

[0077] In the present disclosure, unless otherwise clearly defined, the terms "install", "connect", "connect", "fix", "set", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0078] In the present disclosure, unless otherwise clearly defined, a first feature being “on”, “above”, “above”, “below”, “below”, “below” or “below” a second feature may mean that the first feature is in direct contact with the second feature, or the first feature and the second feature are in indirect contact with each other through an intermediate medium. Moreover, a first feature being “on”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0079] Figure 1a shows a cross-sectional view of a horizontal vacuum cleaner, Figures 2 to 11 The structure shown is Figure 1a A schematic diagram of the partial structure of a vacuum cleaner. Figure 2 , Figure 5 and Fig. 9 The arrows in the middle indicate the direction of gas flow.

[0080] It is understandable that the cleaning device of the disclosed embodiment is not limited to a vacuum cleaner, but may also be other cleaning devices such as a floor scrubber or a window cleaner. Moreover, the vacuum cleaner is not limited to a horizontal vacuum cleaner, but may also be other types of vacuum cleaners such as a barrel vacuum cleaner or a handheld vacuum cleaner.

[0081] like Figure 1a As shown, the cleaning device provided by the embodiment of the present disclosure includes: a body 100 and a dust box assembly 200. Along the flow direction of the airflow, the dust box assembly 200 is located upstream of the body 100.

[0082] Optionally, the cleaning device may further include a detachable suction head assembly (not shown), the machine body 100 includes a cover body 101 and a driving source 160 located in the cover body 101, the driving source 160 provides a suction force to absorb dust-containing gas in the external environment, so that the airflow flows to form a suction flow. The dust box assembly 200 is roughly located in front of the machine body 100, and the dust box assembly 200 may have a dust cavity 201 and a filter assembly (including a dust cup 230 or a dust bag) located in the dust cavity 201, the suction head assembly includes a suction nozzle and a hose connecting the suction nozzle and the dust cavity 201, the dust-containing gas in the external environment is sucked into the hose through the suction nozzle, and then enters the dust cavity 201 through the hose, and enters the machine body 100 after being filtered by the filter assembly in the dust cavity 201.

[0083] like Figure 2As shown, the cover body 101 has: a first air inlet 111, a first air duct, a second air duct 108 and a first air outlet 121, through which the air flows in sequence; the first air inlet 111 is located at the first end 101a of the cover body 101, and the first air duct is constructed in the space between the first end 101a and the second end 130a of the cover body 101: the air flow enters the first air duct, flows in the cover body 101 to the inner side of the second end 130a to change the flow direction of the air flow, and then enters the second air duct 108; after passing through the second air duct 108, the air flow flows out through the first air outlet 121 on the side of the cover body 101; wherein the second end 130a is the opposite end of the first end 101a.

[0084] Figure 2 In the figure, arrow A indicates the approximate flow direction of the airflow in the first air duct, and arrow B indicates the approximate flow direction of the airflow in the second air duct 108.

[0085] Optionally, the driving source 160 is located in the first air duct, and the air flows into the driving source 160 through the first air inlet 111 , and the air flows out of the outlet of the driving source 160 flows through the first air duct inside the cover body 101 to the second air duct 108 .

[0086] The first air outlet 121 is used to discharge airflow out of the housing 101 .

[0087] Without limitation, at least a portion of the air duct formed by the first air duct and the second air duct 108 is U-shaped. Figure 2 As shown, the first air duct is approximately Figure 2 In the area indicated by the middle airflow path A, the second air duct 108 is approximately Fig. 9 and Fig.10 The area indicated by the airflow path B. It can be seen that the first air duct is roughly L-shaped, and the first air duct and the second air duct 108 together form a roughly U-shaped air duct. The airflow flows in the cover body 101 to the inner side of the second end 130a, and the flow direction changes twice (respectively Figure 2G1 and G2 in the figure), and the total direction change angle is approximately 180°. In embodiments not shown in the present disclosure, the number of changes in the flow direction of the above-mentioned airflow can also be one, three or more than three times, and the total change in the flow direction angle is not limited to 180°. The number of changes in the flow direction of the airflow and the change in the angle are not intended to limit the scope of protection of the utility model patent. In the embodiments shown in the present disclosure, the airflow entering the body 100 will first enter the driving source 160 through the first air inlet 111, and the airflow flowing out of the outlet of the driving source 160 will pass through the first air duct and the second air duct 108 inside the cover body 101 and then flow to the external environment from the first air outlet 121. The first air inlet 111 is located at the first end 101a (also referred to as the front) of the cover body 101, and the second end 103a of the cover body 101 can also be referred to as the rear. In the prior art, only the first air duct is often provided in the cover body 101, and the first air outlet 121 is provided at the rear or top of the cover body 101. This way of discharging air from the top or the rear has a shorter air duct and a larger noise. In the embodiment of the present disclosure, a second air duct 108 is added to the side of the first air duct of the cover body 101. After the airflow is sent to the end of the first air duct and changes direction, it will continue to flow in the second air duct 108. The first air outlet 121 is located downstream of the second air duct 108. Therefore, the combination of the first air duct and the second air duct 108 is used to achieve the change of the flow direction and increase the length of the air duct. Since the pressure and speed of the airflow flowing out of the driving source 160 are relatively large, the lengthened air duct can effectively drive the speed and pressure of the airflow flowing out of the source 160, thereby reducing the airflow noise and improving the user experience.

[0088] The driving source 160 generally includes a motor and an impeller. The motor drives the impeller to rotate to form a suction force and make the dust chamber 201 present a negative pressure, so that the dust-containing gas is sucked in.

[0089] In addition to the housing 101 and the driving source 160 located inside the housing 101, the housing 100 may also include a housing 109 (eg, Figure 1b ), the housing 109 can further reduce noise. A handle 101b can also be provided on the housing to facilitate the transportation of the cleaning device.

[0090] The first air duct includes a first sub-air duct 101c and a second sub-air duct 101d through which the air flows in sequence. The air flows in the second sub-air duct 101d and changes direction to enter the second air duct 108 (see Fig. 9 ). Combined Figure 2As shown, the second sub-duct 101d is a space between the end of the first sub-duct 101c and the second end 130a, where the airflow direction changes, and the airflow direction changes again when the airflow flows from the end of the second sub-duct 101d to the second duct 108. The second sub-duct 101d and the second duct 108 surround at least part of the duct wall of the first sub-duct 101c, and the second sub-duct 101d and the second duct 108 share part of the duct wall with the first sub-duct 101c.

[0091] like Fig. 9 As shown, the second sub-duct 101d and the second duct 108 are substantially L-shaped and surround the first sub-duct 101c.

[0092] refer to Fig. 9 As shown, the shared air duct wall means that the inner side of the shared air duct wall forms part of the inner wall of the first air duct, and the outer side of the shared air duct wall forms part of the inner wall of the second air duct 108. The shared air duct wall can make full use of the internal space of the housing 101, making the structure of the cleaning device more compact. Figure 2 As shown, the cover body 101 further includes a filter 128 , and the filter 128 is located at the first air outlet 121 .

[0093] Combination Figure 2 and Fig. 9 As shown, the first air inlet 111 is located at the first end 101a of the housing 101. With respect to the second sub-air duct, the second air duct 108 extends from the second end 103a to the first end 101a to a certain position between the two ends close to the first end 101a, that is, the length of the second air duct 108 is less than the distance between the second end 103a and the first end 101a. The length of the second air duct 108 is not limited thereto, for example: the length of the second air duct can be equal to or greater than the distance between the second end 103a and the first end 101a.

[0094] The second air duct 108 is located on the side of the first sub-air duct 101c, and the second air duct 108 and the first sub-air duct 101c are both substantially parallel to the central axis of the driving source 160, and the second sub-air duct 101d is substantially perpendicular to the central axis of the driving source 160. This distribution of the first air duct and the second air duct 108 can reduce the spatial overlap in the front-to-back direction of the cover body 101, and reduce the problem of the cleaning device being too long in the front-to-back direction due to the addition of the second air duct 108. In the embodiment shown in the present disclosure, the driving source 160 is located in the first sub-air duct 101c.

[0095] Without limitation, the first air inlet 111 is substantially circular.

[0096] Without limitation, the central axis of the driving source 160 is aligned with the central axis of the first air inlet 111 ( Figure 2Then, the direction from the first end 101a of the cover 101 to the second end 103a of the cover 101 is away from the first air inlet 111, and the direction from the second end 103a of the cover 101 to the first end 101a of the cover 101 is toward the first air inlet 111.

[0097] like Figure 4 and Figure 5 As shown, according to some optional embodiments, the cleaning device further includes: an inner cover 150, the inner cover 150 is located in the first air duct of the cover body 101, and the inner cover 150 includes: a first cavity 150b and a second cavity 150a located outside the first cavity 150b; the first cavity 150b is connected to the outlet of the driving source 160, and the side wall of the first cavity 150b has a second air outlet 152a ( Figure 5 ), the side wall of the second cavity 150a has a third air outlet 151a, and the second air outlet 152a and the third air outlet 151a are staggered along the circumferential position of the inner cover 150.

[0098] The double-layer wall of the inner cover 150 can form a double-layer noise reduction air duct cavity, which can further improve the noise reduction effect.

[0099] Without limitation, Figure 5 As shown, the inner cover 150 is substantially cylindrical, and the central axis of the inner cover 150 is substantially coaxial with the central axis of the driving source 160. In the embodiment of the present disclosure, the axial direction refers to the direction parallel to the central axis of the driving source 160.

[0100] like Figure 4 and Figure 5 As shown, the inner cover 150 includes an inner cover bottom wall 153, a generally cylindrical outer wall 151 extending in the axial direction, and a generally cylindrical inner cover inner wall 152 located in the outer wall 151. The first cavity 150b is defined by the inner cover inner wall 152 and the inner cover bottom wall 153, and the second cavity 150a is formed by the inner cover bottom wall 153, the inner cover inner wall 152 and the inner cover outer wall 151. The second air outlet 152a is located on the inner cover inner wall 152, and the third air outlet 151a is located on the inner cover outer wall 151. The airflow from the driving source 160 will first enter the first cavity 150b, and then enter the second cavity 150a from the second air outlet 152a, and then flow from the third air outlet 151a to the space between the inner cover 150 and the cover body 101. The flow direction of the airflow in the second cavity 150a is generally toward the first air inlet 111.

[0101] The first cavity 150b and the second cavity 150a can be used to divide the first air duct into three levels of air ducts radially outward, and the three levels of air ducts include: a primary air duct formed by the first cavity 150b, a secondary air duct formed by the second cavity 150a, and a third air duct formed by the third air outlet 151a flowing to the space between the inner cover 150 and the cover body 101. This structure of increasing the length of the air duct in the radial direction is more conducive to reducing noise.

[0102] like Figure 5 As shown, the second cavity 150a is an annular cavity, and the airflow flowing out of the second air outlet 152a will flow to the third air outlet 151a along the axial direction of the second cavity 150a on both sides. The annular cavity can be a circular ring, an elliptical ring, or a Figure 5 Shaped ring shown.

[0103] like Figure 2 As shown, according to some optional embodiments, the cover body 101 includes: a front cover 110, an outer cover 120 and a rear cover 130, the outer cover 120 is located between the front cover 110 and the rear cover 130, and is respectively connected to the front cover 110 and the rear cover 130; the front cover 110 has a first air inlet 111, and the first air duct includes: a third cavity formed by the front cover 110 and the outer cover 120, and a part of a fourth cavity formed by the outer cover 120 and the rear cover 130; another part of the fourth cavity is formed as a second air duct 108.

[0104] The outer cover 120 has a through hole 122 connecting the third cavity and the fourth cavity. The driving source 160 and the inner cover 150 are both located in the third cavity, and the driving source 160 is at least partially located in the first cavity 150 b.

[0105] The inner cover 150 and the driving source 160 are both located in the third cavity. In fact, the third cavity refers to: a part of the space inside the cover body 101 close to the front side.

[0106] A portion of the fourth cavity extends in the front-to-back direction as a portion of the first air duct, and another portion of the fourth cavity is located on the side of the outer cover 120 to form the second air duct 108. Figure 8 As shown, the area along the through hole 122 is smaller than the cross-sectional area of ​​the first air duct along the direction substantially perpendicular to the axis, that is, the area of ​​the through hole 122 is smaller than the area of ​​the outer cover bottom wall 125. Furthermore, the through hole 122 can effectively ensure that the airflow in the third cavity enters the fourth cavity, and can also effectively ensure that the airflow entering the fourth cavity can flow toward the second air duct 108 on the side of the outer cover 120.

[0107] Alternatively, if Fig. 9 and Fig.10As shown, there is a gap between the via hole 122 and the entrance of the second air duct 108. The via hole 122 is a through hole connecting the first sub-air duct 101c and the second sub-air duct 101d, and the via hole 122 and the entrance of the second air duct 108 are separated, that is, the position of the via hole 122 does not correspond to the position of the third air outlet 151a, and the two are staggered to ensure the length of the second sub-air duct 101d, further increasing the air duct length. Figure 7 Take the structure shown as an example: the through hole 122 is approximately located obliquely above the outer cover 120 , and the third air outlet 151 a is located below the inner cover 150 .

[0108] In the embodiment shown in the present disclosure, the front cover 110 and the outer cover 120 are two separate parts. In an embodiment not shown in the present disclosure, the front cover 110 and the outer cover 120 may be a physically inseparable integral structure.

[0109] like Figure 8 and Fig. 9 As shown, according to some optional embodiments, the outer cover 120 includes: an outer cover bottom wall 125, a first side wall 126 extending axially around the outer cover bottom wall 125 along the driving source 160, a second side wall 127 located outside the side of the first side wall 126, the through hole 122 is located on the outer cover bottom wall 125, and the first air outlet 121 is located on the second side wall 127; the fourth cavity includes: a sub-cavity located between the outer cover bottom wall 125 and the rear cover 130, and a spacing space between the second side wall 127 and the first side wall 126. Among them, the second side wall 127 and the first side wall 126 are roughly distributed side by side along the side of the cleaning device (perpendicular to the front and rear direction), the outer surfaces of the second side wall 127 and the first side wall 126 jointly form the second air duct 108, and the inner surface of the first side wall 126 and the outer cover bottom wall 125 are used to form a part of the inner wall of the third cavity.

[0110] The outer cover 120 is an integral structure. For example, the outer cover 120 can be integrally formed by injection molding or machining.

[0111] like Figure 1b As shown, the machine body 100 further includes an air outlet cover 190 located outside the first air outlet 121. The air outlet cover 190 is located on the side of the cleaning device. The airflow flowing out of the first air outlet 121 is filtered by the air outlet filter and finally flows to the external environment through the holes on the air outlet cover 190.

[0112] like Figure 1d As shown, the machine body 100 is provided with a ventilation cover 191 at a symmetrical position with the air outlet cover 190, and the inner side of the ventilation cover 191 is a cable winder installed in the machine body 100. The ventilation cover 191 and the air outlet cover 190 are both roughly circular structures.

[0113] like Figure 1dAs shown, the distance H between the center lines of the vent hood 191 and the outlet hood 190 is about 315 mm, and the diameters of the vent hood 191 and the outlet hood 190 are approximately between 145 mm and 170 mm, for example, the diameters of the vent hood 191 and the outlet hood 190 are both 145 mm, 150 mm, 160 mm or 170 mm, so as to ensure that the first air outlet 121 of the disclosed embodiment has a larger air outlet area.

[0114] According to some optional embodiments, the side wall of the first cavity 150b and the front cover 110 are both nested with the driving source 160 to fix the driving source 160 in the third cavity. Figure 4 and Figure 7 As shown, Figure 7 The driving source 160 is not shown. The driving source 160 is located at Figure 7 Between the front cover 110 and the inner cover 150. Exemplarily, one end of the driving source 160 is embedded in the front cover 110 and communicated with the first air inlet 111 of the front cover 110, and the other end of the driving source 160 is embedded in the first cavity 150b of the inner cover 150, and then, the driving source 160 can be clamped and fixed by the front cover 110 and the inner wall 152 of the inner cover, without the need for fasteners such as screws, which can ensure the smoothness of the first air duct, reduce protrusions in the first air duct, and then reduce the whistling in the first air duct, and reduce the decibel of gas flow.

[0115] Washers may be added at the connection between the driving source 160 and the front cover 110 , and / or the driving source 160 and the outer cover 120 , so as to improve the reliability of fixing the driving source 160 .

[0116] like Figure 4 As shown, according to some optional embodiments, the first cavity 150b has a first opening on one side facing the driving source 160, and the driving source 160 covers the first opening; the cleaning device also includes: a first sealing member 103, the first sealing member 103 is located on the side wall end surface of the first cavity 150b ( Figure 4 At the middle M, the inner wall 152 end surface of the inner cover) and the driving source 160 ( Figure 4 The first sealing member 103 is sealed with the side wall of the first cavity 150b and the driving source 160 to ensure that the airflow from the driving source 160 enters the first cavity 150b and does not flow out of the first cavity 150b from a position other than the second air outlet 152a. In addition, the first sealing member 103 can also play a shock-absorbing role to reduce the vibration generated during the working process of the driving source 160.

[0117] The first sealing member 103 may be a sealing ring.

[0118] like Figure 4As shown, according to some optional embodiments, the second cavity 150a has a second opening on one side facing the driving source 160, and the front cover 110 covers the second opening; Figure 6 As shown, the cleaning device further includes: a second sealing member 104, which is located between the front cover 110 and the side wall of the second cavity 150a to seal the connection between the front cover 110 and the side wall of the second cavity 150a. The second sealing member 104 is sealedly connected to the side wall of the second cavity 150a and the front cover 110, respectively, to ensure that the airflow flowing out of the second air outlet 152a enters the second cavity 150a and does not flow out of the second cavity 150a from a position other than the third air outlet 151a.

[0119] like Figure 7 and Fig.10 As shown, according to some optional embodiments, the cleaning device also includes: a third seal 105 and / or a fourth seal 106, the third seal 105 is located between the front cover 110 and the outer cover 120 to seal the connection between the front cover 110 and the outer cover 120; the fourth seal 106 is located between the outer cover 120 and the rear cover 130 to seal the connection between the outer cover 120 and the rear cover 130.

[0120] In the embodiment of the present disclosure, the second sealing member 104 , the third sealing member 105 and the fourth sealing member 106 may all be in the form of sealing rings, but are not limited thereto.

[0121] Moreover, the second sealing member 104 and other sealing members can play a shock-absorbing role, further improving the noise reduction effect.

[0122] like Figure 7 As shown, the third sealing member 105 is used to limit the airflow from the connection between the front cover 110 and the outer cover 120 to the outside of the cover body 101; Fig.10 As shown, the fourth sealing member 106 is used to limit the airflow from flowing to the outside of the cover body 101 through the connection between the outer cover 120 and the rear cover 130. Both of these sealing members are used to ensure the sealing of the first air passage.

[0123] like Figure 2 As shown, according to some optional embodiments, the front cover 110 is connected to the outer cover 120 and the rear cover 130 respectively through a fixing position, wherein the fixing position is located outside the cover body 101. The fixing position is completely outside the cover body 101, so that the air duct inside the cover body 101 has no protrusions, which can further ensure the smoothness of the air duct and reduce noise.

[0124] Figure 2The fixing position is exemplarily shown as a buckle 102. It is understandable that the fixing position can also be other structures, for example: taking the connection between the front cover 110 and the outer cover 120 as an example, a boss (not shown) can be provided on the outer wall of the front cover 110 and the outer cover 120, respectively, and a substantially horizontal threaded hole is opened at a corresponding position on the boss, and then a screw is inserted into the threaded hole to realize that the screw fixes the front cover 110 and the outer cover 120 externally.

[0125] like Figure 3 As shown, according to some optional embodiments, the cleaning device further includes: a sound absorbing member 107 , which is located at least at the following positions: inside the second cavity 150 a of the inner cover 150 , on the outer wall of the driving source 160 , and on the inner wall of the outer cover 120 .

[0126] The sound absorbing member 107 may be a suction sponge, but is not limited thereto.

[0127] like Figure 2 As shown, according to some optional embodiments, the front cover 110 has a first mounting position 112 for mounting an air inlet filter, and the first mounting position 112 surrounds the first air inlet 111; and / or, the outer cover 120 has a second mounting position 129 for mounting an air outlet filter, and the second mounting position 129 surrounds the first air outlet 121. The first mounting position 112 is formed by a frame formed by the front cover 110 around the first air inlet 111, and the second mounting position 129 is formed by a frame formed by the outer cover 120 around the first air outlet 121.

[0128] Without limitation, the air inlet filter installed at the first mounting position 112 may be an air inlet sponge to filter the air entering the driving source 160 ; the air outlet filter installed at the second mounting position 129 may be an air outlet HEPA to filter the air flowing out of the cover body 101 .

[0129] The first installation position 112 may be an annular side wall surrounding the first air inlet 111 , and the second installation position 129 may be an annular side wall surrounding the first air outlet 121 .

[0130] The annular side wall may be Figure 1b The annular side wall shown in FIG. Figure 2 The square annular side wall shown may also be an elliptical annular side wall or a side wall of other shapes not shown in the embodiment of the present disclosure.

[0131] The air outlet filter 170 can be fixed to the second installation position 129 by snap-fitting.

[0132] For example: Figure 1b As shown, a protrusion 172 is provided on the outer circumference of the air outlet filter 170 , and the second installation position 129 has an annular side wall and a groove 1291 located on the annular side wall. The protrusion 172 can be inserted into the groove 1291 to connect the air outlet filter 170 and the second installation position 129 .

[0133] In an embodiment not shown in the present disclosure, the protrusion may also be arranged at the second installation position, and the groove may be arranged at the air outlet filter. Alternatively, the second installation position has both the protrusion and the groove, and the air outlet filter also has both the protrusion and the groove, and the protrusion on the second installation position is engaged with the groove corresponding to the air outlet filter, and the groove on the second installation position is engaged with the protrusion corresponding to the air outlet filter.

[0134] like Figure 1b and Figure 1c As shown, the air outlet filter 170 of the body 100 is provided with an aromatherapy installation position 171, and the air outlet filter 170 is used to filter the airflow flowing out from the first air outlet 121 to the external environment. The aromatherapy installation position 171 is located in the airflow outflow path, and the aromatherapy installation position 171 is used to install the aromatherapy component 180.

[0135] Aromatherapy installation position 171 is arranged at first air outlet 121, so that fragrance can be smelled as soon as the cleaning device is turned on. The fragrance of aromatherapy component 180 is blown away by the air from first air outlet 121, which is helpful to expand the fragrance range and diffusion speed, making the fragrance stronger. Aromatherapy component 180 can cover up the odor that may exist during cleaning, and improve the user experience.

[0136] The aromatherapy element 1801 can be a solid in the form of a sheet, a sphere, or a block, or a liquid soaked in a water-absorbing material. The aromatherapy element 80 can also be a semi-solid. The specific form of the aromatherapy element 180 is not intended to limit the present application.

[0137] Figure 1b and Figure 1c In the illustrated embodiment, the aromatherapy installation position 171 is located at the center of the first air outlet 121 , so as to better ensure that the airflow flowing out of the first air outlet 121 passes through the aromatherapy component 180 .

[0138] Figure 1b and Figure 1c The air outlet filter 170 shown is a Hepa. Figure 1c As shown, Hypa includes a Hypa external filter frame 173 located on the outside and an internal filter element 174 located on the inside, a mounting hole is formed on the Hypa external filter frame 173 , and the aromatherapy element 180 is located between the Hypa external filter frame 173 and the internal filter element 174 .

[0139] The mounting holes are used to fix the aromatherapy component 180 on the outer periphery of the aromatherapy component 180 , thereby reducing the obstruction of the aromatherapy component 180 as much as possible, thereby allowing the aromatherapy component 180 to volatilize the fragrance better.

[0140] Alternatively, if Figure 1c As shown, the hole wall of the mounting hole has a notch 177 for taking out the aromatherapy component 180 .

[0141] The notch 177 provides an operable position for the user to take and place the aromatherapy component 180. For example, two notches 177 can be symmetrically arranged on both sides of the mounting hole. When taking and placing the aromatherapy component 180, two fingers can be placed on the corresponding notches 177 to clamp the aromatherapy component 180, which is convenient for taking and placing the aromatherapy component 180.

[0142] Without limitation, the depth of the mounting hole is greater than the thickness of the aromatherapy component 1801. This provides a certain degree of protection for the aromatherapy component 80. For example, after the air outlet cover 190 is installed, the air outlet cover 190 will first contact the hole wall of the mounting hole without touching the aromatherapy component 180, thereby reducing the possibility of the aromatherapy component 180 falling during the assembly of the cleaning device.

[0143] Optionally, the air outlet cover 190 is detachably mounted on the shell (for example, the air outlet cover 190 is detachably mounted on the second mounting position 1291 ), so that the aromatherapy component 180 can be easily replaced.

[0144] Alternatively, if Figure 1b and Figure 1c As shown, the aromatherapy element 180 is annular. The hollow middle part of the annular aromatherapy element 180 can also emit air, thereby increasing the contact area between the aromatherapy element 180 and the fluid, further improving the aromatherapy effect.

[0145] The hole wall of the mounting hole has a limiting buckle 175 for limiting the aromatherapy component in the mounting hole.

[0146] The limiting buckle 175 can better fix the aromatherapy component 180 in the installation hole, thereby ensuring the reliability of the fixation of the aromatherapy component 180.

[0147] like Figure 1c As shown, the limit buckle 175 may also have an inclined surface 176 for guiding the aromatherapy component 180 to be inserted into the installation hole. The inclined surface 176 can better guide the aromatherapy component 180 to be inserted into the installation hole, making it easier to install the aromatherapy component 180. Figure 7 , Figure 8 and Fig.11 As shown, according to some optional embodiments, the cover body 101 includes: an air guide tube 123 connected to the first air duct; Figure 2 , Figure 3 and Fig.11 As shown, the cleaning device further includes: a circuit board assembly 140 for controlling the operation of a driving source 160 , and a heat dissipation portion 141 of the circuit board assembly 140 is at least partially inserted into the air guide tube 123 .

[0148] The heat dissipation portion 141 is generally a heat sink. Figure 1a As shown, the air duct 123 is a part of the structure of the outer cover 120, and the circuit board assembly 140 can be installed outside the top wall of the outer cover 120. The air duct 123 is connected to the third cavity in the cover body 101.

[0149] After the airflow enters the driving source 160 from the first air inlet, it flows out to the third cavity through the second cavity 150a of the inner cover 150. Since the third cavity is connected to the air duct 123, the airflow enters the heat sink of the circuit board assembly 140 along the air duct 123. At the same time, the interior of the heat sink is at least partially enclosed, and the airflow can easily dissipate the heat from the heat sink and reduce the chip temperature on the circuit board assembly 140, thereby reducing the chip temperature by the air outlet of the air duct 123.

[0150] like Fig.11 As shown, according to some optional embodiments, the housing 101 further includes: a fifth sealing member 142, which is respectively sealed and connected to the heat dissipation portion 141 and the air duct 123. The fifth sealing member 142 can not only achieve sealing at the outlet of the air duct 123, but also has a supporting and fixing function for the heat dissipation portion 141 (generally a heat sink).

[0151] The fifth sealing member 142 may be a rubber ring, the heat sink is inserted into the inner side of the rubber ring, and the outer side of the rubber ring is tightly fitted to the inner wall of the air guide pipe 123 .

[0152] like Figure 7 , Figure 8 and Fig.11 As shown, according to some optional embodiments, the inner wall of the first air duct has a fourth air outlet 124, and the air guide duct 123 is connected to the first air duct through the fourth air outlet 124, and the fourth air outlet 124 is a plurality of strip holes distributed on the inner wall of the first air duct. Figure 7 , Figure 8 and Fig.11 The fourth air outlet 124 shown in the figure is located on the outer cover 120, and a plurality of strip holes are evenly distributed at intervals to form an air outlet grid. The structure of the strip holes facilitates the arrangement of a larger number of strip holes to improve the air outlet efficiency.

[0153] A plurality may be two, three, or more than three.

[0154] The inner wall of the first air duct and the inner wall of the air guide duct 123 are walls at two different positions of the outer cover 120 .

[0155] like Figure 1aAs shown, according to some optional embodiments, the dust box assembly 200 includes: a dust box 210, a cover 220 and a mounting frame, the dust box 210 has a dust chamber 201 connected to the first air inlet 111, the dust chamber 201 is located upstream of the first air inlet 111, and has a third opening; the mounting frame is located in the dust chamber 201, and the mounting frame is used to install a dust cup 230. The dust box 210 is located below the cover 220. When the cleaning device enters the working state, the cover 220 can cover the third opening so that the dust chamber 201 is in a negative pressure state; the cover 220 can also be opened to expose the third opening, so that the dust cup 230, the dust bag or the dust chamber 201 can be taken out through the third opening.

[0156] The dust cup type mounting frame 260 may also be replaced with a dust bag type mounting frame, and a dust bag may be mounted on the dust bag type mounting frame.

[0157] like Figure 1a As shown, a dust bag sealing ring can be provided at the dust bag and the mounting frame installation position. If a dust cup 230 is used, a dust cup sealing ring 270 can also be provided between the dust cup 230 and the dust cup mounting frame 260.

[0158] like Figure 1a As shown, the dust box 210 has a mounting frame for the air inlet hepa, and the air inlet hepa corresponds to the position of the first air inlet 111. The airflow in the dust chamber 201 will enter the first air inlet 111 after passing through the air inlet hepa. A sealing ring is also provided at the connection between the front cover 110 and the dust box 210, and a dust box sealing ring 240 can also be provided between the dust box 210 and the cover body 220 to ensure the sealing of the dust chamber 201 in the working state.

[0159] It should be understood that the above embodiments are exemplary and are not intended to include all possible implementations included in the claims. Various modifications and changes may be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form other embodiments of the present disclosure that may not be explicitly described. Therefore, the above embodiments only express several implementations of the present disclosure and do not limit the scope of protection of the patent of the present disclosure.

Claims

1. A cleaning device, characterized in that: The cleaning equipment comprises: A dust box assembly (200) and a machine body (100), wherein along the flow direction of the airflow, the dust box assembly (200) is located upstream of the machine body (100); The machine body (100) comprises a cover body (101) and a driving source (160) located inside the cover body (101), wherein the driving source (160) is used to provide a suction force for the air flow; The cover body (101) comprises: a first air inlet (111), a first air duct, a second air duct (108), and a first air outlet (121), through which air flows in sequence; The first air inlet (111) is located at the first end of the cover body (101), and the first air duct is constructed in the space between the first end (101a) and the second end (130a) of the cover body (101): The airflow enters the first air duct, flows in the cover body (101) to the inner side of the second end (130a), where it changes its flow direction and then enters the second air duct (108); after passing through the second air duct (108), the airflow flows out through the first air outlet (121) on the side of the cover body (101); the second end (130a) is the opposite end of the first end (101a).

2. The cleaning device according to claim 1, characterized in that At least a portion of the air duct formed by the first air duct and the second air duct (108) is U-shaped.

3. The cleaning device according to claim 1, characterized in that: The first air duct comprises a first sub-air duct (101c) and a second sub-air duct (101d) through which the airflow passes in sequence, and the airflow changes direction in the second sub-air duct and enters the second air duct (108); The second sub-air duct (101d) and the second air duct (108) surround at least part of the air duct wall of the first sub-air duct (101c), and the second sub-air duct (101d) and the second air duct (108) both share part of the air duct wall with the first sub-air duct (101c).

4. The cleaning device according to claim 1, characterized in that The driving source (160) is located in the first air duct; air flows into the driving source (160) through the first air inlet (111), and air flows out of an outlet of the driving source (160) within the cover body (101) through the first air duct to the second air duct (108).

5. The cleaning device according to claim 4, characterized in that The cleaning device further comprises: an inner cover (150), the inner cover (150) being located in the first air duct, the inner cover (150) comprising: a first cavity (150b) and a second cavity (150a) located outside the first cavity (150b); The first cavity (150b) is connected to the outlet of the driving source (160); the side wall of the first cavity (150b) has a second air outlet (152a); the side wall of the second cavity (150a) has a third air outlet (151a); the second air outlet (152a) and the third air outlet (151a) are staggered along the circumferential position of the inner cover (150); the airflow from the driving source (160) enters the first cavity (150b) and flows from the second air outlet (152a) to the second cavity (150a); the airflow in the second cavity (150a) passes through the third air outlet (151a) and enters the space between the cover body (101) and the inner cover (150).

6. The cleaning device according to claim 5, characterized in that The central axis of the first air inlet (111) is coaxial with the central axis of the driving source (160).

7. The cleaning device according to claim 5, characterized in that The cover body (101) comprises: a front cover (110), an outer cover (120) and a rear cover (130); the outer cover (120) is located between the front cover (110) and the rear cover (130), and is respectively connected to the front cover (110) and the rear cover (130); The front cover (110) has the first air inlet (111), and the first air duct includes: a third cavity formed by the front cover (110) and the outer cover (120), and a part of a fourth cavity formed by the outer cover (120) and the rear cover (130); another part of the fourth cavity forms the second air duct.

8. The cleaning device according to claim 7, characterized in that The outer cover (120) has a through hole (122) connecting the third cavity and the fourth cavity, the driving source (160) and the inner cover (150) are both located in the third cavity, and there is a gap between the through hole (122) and the entrance of the second air duct (108).

9. The cleaning device according to claim 8, characterized in that The outer cover (120) comprises: an outer cover bottom wall (125), a first side wall (126) extending around the outer cover bottom wall (125) along the axial direction of the driving source (160), and a second side wall (127) located outside the side of the first side wall (126), the through hole (122) being located on the outer cover bottom wall (125), and the first air outlet (121) being located on the second side wall (127); The fourth cavity comprises: a sub-cavity located between the bottom wall (125) of the outer cover and the rear cover (130), and a spacing space between the second side wall (127) and the first side wall (126), the sub-cavity forming a part of the first air duct, and the spacing space forming the second air duct (108).

10. The cleaning device according to claim 7, characterized in that The side wall of the first cavity (150b) and the front cover (110) are both nested and connected with the driving source (160) to fix the driving source (160) in the third cavity.

11. The cleaning device according to claim 7, characterized in that: The first cavity (150b) has a first opening on a side facing the driving source (160), and the driving source (160) covers the first opening; The cleaning device further comprises: a first sealing member (103), wherein the first sealing member (103) is located between the end surface of the side wall of the first chamber (150b) and the driving source (160) to seal the connection between the driving source (160) and the side wall of the first chamber (150b).

12. The cleaning device according to claim 11, characterized in that The second cavity (150a) has a second opening on a side facing the driving source (160), and the front cover (110) covers the second opening; The cleaning device further comprises a second sealing member (104), wherein the second sealing member (104) is located between the front cover (110) and the side wall of the second chamber (150a) to seal the connection between the front cover (110) and the side wall of the second chamber (150a).

13. The cleaning device according to claim 7, characterized in that The cleaning device also includes: a third sealing member (105), the third sealing member (105) being located between the front cover (110) and the outer cover (120) to seal a connection between the front cover (110) and the outer cover (120); and / or, A fourth sealing member (106), the fourth sealing member (106) being located between the outer cover (120) and the rear cover (130) to seal a connection between the outer cover (120) and the rear cover (130).

14. The cleaning device according to claim 7, characterized in that The front cover (110) is respectively connected to the outer cover (120) and the rear cover (130) via a fixing position, wherein the fixing position is located outside the cover body (101).

15. The cleaning device according to claim 14, characterized in that The fixing portion comprises a buckle (102).

16. The cleaning device according to claim 7, characterized in that The cleaning device further comprises: a sound absorbing member (107), wherein the sound absorbing member (107) is located at least at the following positions: the second cavity (150a) of the inner cover (150), the outer wall of the driving source (160), and the inner wall of the outer cover (120).

17. The cleaning device according to claim 7, characterized in that The front cover (110) has a first mounting position (112) for mounting an air intake filter, the first mounting position (112) surrounding the first air inlet (111); and / or, The outer cover (120) has a second mounting position (129) for mounting an air outlet filter (170), and the second mounting position (129) surrounds the first air outlet (121).

18. The cleaning device according to claim 17, characterized in that The outer circumference of the air outlet filter (170) is provided with a protrusion (172), the second mounting position (129) has an annular side wall and a groove (1291) located on the annular side wall, and the protrusion (172) can be inserted into the groove (1291) to connect the air outlet filter (170) and the second mounting position (129).

19. The cleaning device according to any one of claims 1 to 18, characterized in that The cover body (101) comprises: an air duct (123) connected to the first air duct; the cleaning device further comprises: a circuit board assembly (140) for controlling the operation of the driving source (160), and a heat dissipation portion (141) of the circuit board assembly (140) is at least partially inserted into the air duct (123).

20. The cleaning device according to claim 19, characterized in that The cover body (101) further comprises: a fifth sealing member (142), wherein the fifth sealing member (142) is respectively sealedly connected to the heat dissipation portion (141) and the air guide pipe (123).

21. The cleaning device according to claim 19, characterized in that The inner wall of the first air duct has a fourth air outlet (124), the air guide pipe (123) is connected to the first air duct through the fourth air outlet (124), and the fourth air outlet (124) is a plurality of strip-shaped holes distributed on the inner wall of the first air duct.

22. The cleaning device according to any one of claims 1 to 18, characterized in that The dust box assembly (200) comprises: A dust box (210), the dust box (210) comprising a dust chamber (201) in communication with the first air inlet (111), the dust chamber (201) being located upstream of the first air inlet (111) and having a third opening; a cover body (220), the cover body (220) covering the third opening; A mounting frame, the mounting frame is located in the dust chamber (201), and the mounting frame is used to mount a dust cup or a dust bag.

23. The cleaning device according to any one of claims 1 to 18, characterized in that The machine body (100) further comprises: an air outlet filter (170), and an aromatherapy installation position (171) located on the air outlet filter (170); The air outlet filter (170) is used to filter the airflow flowing out from the first air outlet (121) to the external environment, the aromatherapy installation position (171) is located in the airflow outflow path, and the aromatherapy installation position (171) is used to install the aromatherapy component (180).

24. The cleaning device according to claim 23, characterized in that The air outlet filter (170) is a HEPA, and the aromatherapy installation position (171) is a mounting hole formed on an external filter frame (173) of the HEPA.

25. The cleaning device according to claim 24, characterized in that The hole wall of the installation hole has a notch (177) for taking in and placing the aromatherapy component (180).

26. The cleaning device according to claim 23, characterized in that The aromatherapy installation position (171) is located at the center of the first air outlet (121).

27. The cleaning device according to claim 23, characterized in that The aromatherapy element (180) is ring-shaped.

28. The cleaning device according to claim 24, characterized in that The depth of the mounting hole is greater than the thickness of the aromatherapy component (180).

29. The cleaning device according to claim 24, characterized in that The hole wall of the mounting hole comprises a limiting buckle (175) for limiting the aromatherapy component (180) in the mounting hole.

30. The cleaning device according to claim 29, characterized in that The limiting buckle (175) has an inclined surface (176) for guiding the aromatherapy component (180) to be inserted into the installation hole.

31. The cleaning device according to claim 23, characterized in that The machine body (100) further comprises an air outlet cover (190) located outside the air outlet filter (170), and the air outlet cover (190) is located on the side of the cleaning device.

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