Air outlet structure and cleaning device

Abstract

This application relates to an air outlet structure and a cleaning device. The air outlet structure includes a mounting bracket, an exhaust assembly, and an air outlet assembly. The air outlet assembly includes an air outlet housing, a first sound-absorbing component, and a sound-absorbing cover. The air outlet housing has an air outlet channel inside, which connects to the outlet of the exhaust assembly. The sound-absorbing cover is disposed outside the air outlet housing and forms a receiving cavity with the air outlet housing. The first sound-absorbing component is disposed inside the receiving cavity. The cleaning device includes the air outlet structure. Because the air outlet structure has a sound-absorbing cover outside the air outlet housing, and a first sound-absorbing component is disposed between the sound-absorbing cover and the air outlet housing, when gas is discharged along the air outlet channel, the first sound-absorbing component can directly absorb the noise generated in the air outlet channel, and can also absorb the noise generated by the vibration of the exhaust assembly. Furthermore, the sound-absorbing cover can block the outward transmission of noise, achieving a dual noise reduction effect, which is beneficial to improving the user experience.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and in particular to air outlet structure and cleaning equipment. Background Technology

[0002] Cleaning equipment, such as cleaning robots, is a widely used household cleaning device capable of autonomously cleaning surfaces without manual operation. Cleaning robots utilize cleaning components like roller brushes to clean floors; specifically, the brushes lift dust, which is then collected by a fan. As cleaning performance requirements increase, technologies often improve fan performance by increasing fan speed. However, increasing fan speed also increases noise levels, negatively impacting the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide an air outlet structure and cleaning equipment to address the problem of high noise levels generated by the fan.

[0004] An air outlet structure, the air outlet structure comprising:

[0005] Mounting bracket;

[0006] An exhaust assembly, which is connected to the mounting bracket;

[0007] An air outlet assembly includes an air outlet housing, a first sound-absorbing component, and a sound-absorbing cover. The air outlet housing has an air outlet channel inside, which is connected to the outlet of the exhaust assembly. The sound-absorbing cover is disposed outside the air outlet housing and forms a receiving cavity with the air outlet housing. The first sound-absorbing component is disposed inside the receiving cavity.

[0008] In one embodiment, the sound-absorbing cover is sealed to the air outlet housing;

[0009] And / or, the surface of the sound-absorbing cover that forms the receiving cavity is a closed surface.

[0010] In one embodiment, the sound-absorbing cover is detachably connected to the air outlet housing.

[0011] In one embodiment, at least one of the sound-absorbing cover and the air outlet housing is made of a flexible material.

[0012] In one embodiment, the air outlet assembly further includes a second sound-absorbing component disposed at the outlet of the air outlet duct.

[0013] In one embodiment, the second sound-absorbing component includes breathable sound-absorbing cotton that fills the outlet of the air outlet channel.

[0014] In one embodiment, the air outlet housing includes a first housing and a second housing connected sequentially along the air outlet direction. The first housing is connected to the outlet of the exhaust assembly, and the interior of the second housing communicates with the interior of the first housing to form the air outlet channel.

[0015] The sound-absorbing outer cover is disposed outside the second housing and forms a receiving cavity between the outer cover and the second housing.

[0016] In one embodiment, the sound-absorbing cover is disposed around the outer periphery of the second housing, and the first sound-absorbing component is filled in an annular shape between the sound-absorbing cover and the second housing.

[0017] In one embodiment, the second housing has a plurality of sound-absorbing holes, which connect the air outlet channel and the receiving cavity.

[0018] In one embodiment, the exhaust assembly includes a power component and a mounting base, the power component being connected to the mounting bracket via the mounting base, and the outlet of the power component being connected to the exhaust duct.

[0019] In one embodiment, the air outlet structure further includes a sealing component disposed between the power component and the mounting bracket, and at least a portion of the sealing component surrounds the inlet of the power component. The mounting bracket has an air inlet channel, and the inlet of the power component communicates with the air inlet channel.

[0020] In one embodiment, the mounting base is sleeved outside the power component, and the sealing component is disposed on the side of the power component opposite to the mounting base.

[0021] In one embodiment, the mounting bracket is provided with at least one connecting shaft, the fixing base is provided with at least one fixing hole, the connecting shaft passes through the fixing hole, and a connecting hole is opened at the end of the connecting shaft opposite to the mounting bracket;

[0022] The air outlet structure also includes a connector, which passes through the connection hole so that the fixed base is connected to the mounting bracket through the connector.

[0023] A cleaning device, the cleaning device comprising the air outlet structure described in any of the above claims.

[0024] The aforementioned air outlet structure and cleaning equipment include an air outlet structure comprising a mounting bracket, an exhaust assembly, and an air outlet component. The air outlet component includes an air outlet housing, a first sound-absorbing component, and a sound-absorbing cover. The air outlet housing has an air outlet channel connected to the outlet of the exhaust assembly. The sound-absorbing cover is positioned outside the air outlet housing, forming a receiving cavity with it. The first sound-absorbing component is positioned within this receiving cavity. Because the air outlet structure has a sound-absorbing cover outside the air outlet housing, and a first sound-absorbing component is positioned between the cover and the housing, the first sound-absorbing component can directly absorb noise generated within the air outlet channel when gas is discharged along the exhaust channel. It can also absorb noise generated by the vibration of the exhaust assembly. Furthermore, the sound-absorbing cover effectively blocks noise from propagating outwards, achieving a dual noise reduction effect and improving the user experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the air outlet structure according to an embodiment of this application.

[0026] Figure 2 This is a schematic diagram of the overall structure of the air outlet structure according to an embodiment of this application from another perspective.

[0027] Figure 3 This is an exploded structural diagram of an air outlet structure according to an embodiment of this application.

[0028] Figure 4 This is a top view of the exhaust assembly, exhaust assembly, and sealing component according to an embodiment of this application.

[0029] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the middle AA surface.

[0030] Figure 6 This is a schematic diagram of the overall structure of the air outlet structure according to an embodiment of this application from another perspective.

[0031] Icon labels:

[0032] 10. Air outlet structure;

[0033] 100. Mounting bracket; 110. Air inlet channel; 120. Connecting shaft; 121. Connecting hole;

[0034] 200. Exhaust assembly; 210. Power unit; 220. Mounting base; 221. Mounting hole;

[0035] 300, Air outlet assembly; 301, Air outlet duct; 302, Receiving cavity; 310, Air outlet housing; 311, First housing; 312, Second housing; 313, Sound absorption hole; 320, First sound absorption component; 330, Sound absorption cover; 340, Second sound absorption component;

[0036] 400. Sealing components. Detailed Implementation

[0037] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0038] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0039] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0043] Please see Figures 1 to 6 As shown, this application embodiment provides an air outlet structure 10 and a cleaning device including the air outlet structure 10. The cleaning device in this application embodiment can be a cleaning robot, a floor scrubber, etc., but is not limited to these. Taking a cleaning robot as an example, a cleaning robot is used to clean dust and other contaminants on a surface awaiting cleaning. It should be understood that the cleaning device can also include conventional components of existing cleaning robots such as roller brushes, wheels, and batteries. The roller brush raises the dust on the surface to be cleaned, and the air outlet structure 10 draws the dust into the cleaning device for collection. The cleaning device in this application embodiment utilizes the air outlet structure 10 for both exhaust and extraction. The first sound-absorbing component 320 can reduce the noise of the exhaust, which helps improve the user experience and enhances the product competitiveness of the cleaning device.

[0044] See Figures 1 to 6As shown, the air outlet structure 10 includes a mounting bracket 100, an exhaust assembly 200, and an air outlet assembly 300. The mounting bracket 100 serves as the supporting foundation for the entire air outlet structure 10, fixing both the exhaust assembly 200 and the air outlet assembly 300, and connecting and fixing them to the internal frame of the cleaning equipment, thereby ensuring the stability of each component during the movement or operation of the cleaning equipment. The exhaust assembly 200 is connected to the mounting bracket 100 and provides exhaust power to draw dust into the cleaning equipment for storage and exhaust it to the outside. It should be understood that the cleaning equipment has corresponding dust filtration and storage structures to prevent dust from entering the air outlet structure 10. The air outlet assembly 300 includes an air outlet housing 310, a first sound-absorbing component 320, and a sound-absorbing outer cover 330. The air outlet housing 310 has an air outlet channel 301 inside, the inlet of which connects to the outlet of the exhaust assembly 200, guiding the airflow along a preset path for discharge. The sound-absorbing cover 330 is disposed outside the air outlet housing 310. For example, the sound-absorbing cover 330 can be configured as a semi-enclosed structure, connecting the sound-absorbing cover 330 to the air outlet housing 310, so that the outer wall of the sound-absorbing cover 330 and the air outlet housing 310 form a hollow receiving cavity 302. The first sound-absorbing component 320 is disposed inside the receiving cavity 302. For example, the first sound-absorbing component 320 can be selected as porous sound-absorbing cotton, sound-absorbing sponge, etc., so that the first sound-absorbing component 320 can introduce noise sound waves into the pores, effectively attenuating the noise generated during the air outlet process.

[0045] Through the above structural design, the air outlet structure 10 of this embodiment has a sound-absorbing cover 330 outside the air outlet housing 310, and a first sound-absorbing component 320 is provided between the sound-absorbing cover 330 and the air outlet housing 310. When gas is discharged along the air outlet channel 301, the first sound-absorbing component 320 can directly absorb the noise generated in the air outlet channel 301, and can also absorb the noise generated by the vibration of the exhaust assembly 200. In addition, the sound-absorbing cover 330 can block the outward transmission of noise, achieving a dual noise reduction effect, which is beneficial to improving the user experience.

[0046] Optionally, in some embodiments, the sound-absorbing cover 330 and the air outlet housing 310 are sealed together. A sealed connection means that the connection between the sound-absorbing cover 330 and the air outlet housing 310 is designed to be airtight, for example, by applying sealant, using a sealing strip, or an interference fit. This sealed connection ensures that the edge of the sound-absorbing cover 330 fits tightly against the outer wall of the air outlet housing 310, eliminating any gaps and improving noise insulation. Simultaneously, the first sound-absorbing component 320 concentrates the absorption of noise from the air outlet channel 301, effectively preventing noise from propagating outwards. Furthermore, since the cleaning equipment may come into contact with liquid contaminants such as water stains during cleaning operations, causing the air outlet structure 10 to draw in moisture during exhaust, this sealed connection in this embodiment prevents moisture from leaking outwards from the connection between the sound-absorbing cover 330 and the air outlet housing 310, thus preventing moisture from being directly discharged into the indoor or other clean environments and causing pollution.

[0047] Optionally, in some embodiments, the surface of the sound-absorbing cover 330 surrounding the receiving cavity 302 is a closed surface. A closed surface means that the area of ​​the receiving cavity 302 formed by the sound-absorbing cover 330 and the air outlet housing 310 has no openings or holes; that is, the surface is completely closed. The closed surface of the sound-absorbing cover 330 prevents noise from the air outlet duct 301 from diffusing outwards, further enhancing the noise insulation effect, while also effectively preventing moisture from the air outlet duct 301 from being directly discharged outwards.

[0048] It should be understood that the first sound-absorbing component 320 may age and fail after long-term use, resulting in a decline in sound absorption performance. If it cannot be replaced, the entire air outlet assembly 300 needs to be replaced, leading to high maintenance costs. To solve the above problems, in some embodiments, the sound-absorbing cover 330 and the air outlet housing 310 are detachably connected. For example, the sound-absorbing cover 330 can be connected to the air outlet housing 310 by bolts. Specifically, threaded holes can be provided at corresponding positions on the sound-absorbing cover 330 and the air outlet housing 310, and the connection and separation of the sound-absorbing cover 330 and the air outlet housing 310 can be achieved by screwing the bolts into or out of the threaded holes. Another example is that the sound-absorbing cover 330 can be connected to the air outlet housing 310 by snap-fit. Specifically, elastic snap-fits can be provided on the sound-absorbing cover 330, and corresponding slots adapted to the elastic snap-fits can be provided on the outer wall of the air outlet housing 310. The installation and removal of the sound-absorbing cover 330 can be achieved by pressing the elastic snap-fits into the slots or pulling them out. Therefore, the detachable connection between the sound-absorbing cover 330 and the air outlet housing 310 can improve maintenance convenience and reduce maintenance costs. When maintenance is required, the sound-absorbing cover 330 can be removed to clean or replace the first sound-absorbing component 320 in the receiving cavity 302, ensuring that the air outlet structure 10 maintains its high-efficiency noise reduction performance over a long period of time.

[0049] Optionally, in some embodiments, at least one of the sound-absorbing cover 330 and the air outlet housing 310 is made of a flexible material. For example, the flexible material can be silicone, elastic plastic, flexible rubber, or other materials with a certain degree of elasticity and deformation capability. Specifically, both the sound-absorbing cover 330 and the air outlet housing 310 can be made of flexible material. In this case, when the airflow in the air outlet channel 301 impacts the air outlet housing 310 and the sound-absorbing cover 330, the flexible material can buffer the impact and reduce the noise generated by vibration. Furthermore, when the vibration of the exhaust assembly 200 during exhaust is transmitted to the air outlet housing 310 or the sound-absorbing cover 330, the flexible material can absorb the vibration energy, preventing the vibration from being transmitted to the mounting bracket 100 and the cleaning equipment, further reducing vibration noise.

[0050] See Figures 1 to 6 As shown, in some embodiments, the air outlet assembly 300 further includes a second sound-absorbing component 340, which is disposed at the outlet of the air outlet channel 301. For example, the second sound-absorbing component 340 may be selected as porous sound-absorbing cotton, sound-absorbing sponge, etc., so that the second sound-absorbing component 340 can effectively attenuate the noise generated during the air outlet process.

[0051] Specifically, the second sound-absorbing component 340 can be fixed to the air outlet housing 310 by means of snap-fit ​​connection, adhesive bonding, or other methods. Furthermore, the second sound-absorbing component 340 is located at the end of the air outlet channel 301, i.e., the final outlet location of the airflow, ensuring that the airflow must pass through the second sound-absorbing component 340 when exiting the air outlet channel 301. Thus, when the airflow exits along the air outlet channel 301, it first passes through the first sound-absorbing component 320, which can isolate most of the noise. Then, the airflow passes through the second sound-absorbing component 340, which can further attenuate the sound energy, thereby covering the noise-generating area as much as possible and effectively reducing the outlet noise.

[0052] Optionally, in some embodiments, the second sound-absorbing component 340 includes breathable sound-absorbing cotton, such as polyester fiber sound-absorbing cotton, glass fiber sound-absorbing cotton, etc., allowing gas to pass through the second sound-absorbing component 340 and effectively isolating noise. Furthermore, the breathable sound-absorbing cotton completely fills the outlet of the air outlet channel 301. For example, the shape of the breathable sound-absorbing cotton is set to perfectly fit the cross-section of the outlet of the air outlet channel 301, so that the breathable sound-absorbing cotton completely covers all areas of the outlet of the air outlet channel 301 after filling. When the outlet of the air outlet channel 301 is filled with breathable sound-absorbing cotton, it can prevent airflow from directly escaping between the breathable sound-absorbing cotton and the inner wall surface of the outlet of the air outlet channel 301, thereby preventing secondary noise from being generated when airflow escapes through the tiny gaps between the breathable sound-absorbing cotton and the inner wall surface of the outlet of the air outlet channel 301. Simultaneously, the breathable sound-absorbing cotton can also absorb moisture, ensuring that moisture does not directly escape from the outlet of the air outlet channel 301, preventing moisture pollution of the clean environment.

[0053] Of course, in other alternative embodiments, the second sound-absorbing component 340 may only fill a portion of the outlet area of ​​the air outlet channel 301. For example, the second sound-absorbing component 340 may be configured as a ring structure, with the outer periphery of the second sound-absorbing component 340 connected to the inner wall surface of the outlet of the air outlet channel 301. In this case, airflow can pass through the central area of ​​the ring structure, resulting in high air outlet efficiency, and the second sound-absorbing component 340 can also achieve noise reduction.

[0054] See Figures 3 to 5 As shown, in some embodiments, the air outlet housing 310 includes a first housing 311 and a second housing 312 connected sequentially along the air outlet direction. The air outlet direction is the direction in which the gas flows along the air outlet channel 301. Specifically, both the first housing 311 and the second housing 312 are hollow structures. The first housing 311 is located near the exhaust assembly 200, and one end of the first housing 311 is connected to the outlet of the exhaust assembly 200. The first housing 311 is used to receive the airflow discharged from the exhaust assembly 200 and guide the airflow smoothly into the second housing 312. The second housing 312 is connected to the other end of the first housing 311; for example, the second housing 312 and the first housing 311 can be integrally formed. The interior of the second housing 312 communicates with the interior of the first housing 311 to form the air outlet channel 301, meaning that after the airflow flows into the first housing 311, it continues to flow within the second housing 312 and is discharged through the outlet of the air outlet channel 301.

[0055] Furthermore, the sound-absorbing cover 330 is disposed outside the second housing 312, connected to the second housing 312, and forming a receiving cavity 302 between the sound-absorbing cover 330 and the outer wall of the second housing 312. The first sound-absorbing component 320 is filled in the receiving cavity 302, so that the first sound-absorbing component 320 is disposed on the outside of the second housing 312, that is, the first sound-absorbing component 320 is located on the outside of the end of the air outlet channel 301 away from the exhaust assembly 200. Of course, the second housing 312 may also be provided with a second sound-absorbing component 340, specifically, the sound-absorbing component is filled at the outlet of the air outlet channel 301.

[0056] Since the exhaust noise is mainly concentrated at the outlet of the exhaust duct 301, in this embodiment, the exhaust housing 310 is divided into a first housing 311 and a second housing 312. The first sound-absorbing component 320 and the second sound-absorbing component 340 are disposed on the second housing 312. This not only minimizes the exhaust noise but also reduces the material usage of the sound-absorbing cover 330, the first sound-absorbing component 320, and the second sound-absorbing component 340, thereby reducing the weight and cost of the exhaust assembly 300 and meeting lightweight requirements. Simultaneously, at the connection between the exhaust housing 310 and the exhaust assembly 200, the airflow can be quickly guided into the second housing 312 by optimizing the channel shape inside the first housing 311, so that the first sound-absorbing component 320 and the second sound-absorbing component 340 on the second housing 312 can remove noise. Furthermore, the first housing 311 can also be configured to fit the exhaust assembly 200, facilitating quick assembly of the exhaust housing 310 and the exhaust assembly 200.

[0057] Further, see Figures 3 to 6 As shown, in some embodiments, the sound-absorbing cover 330 is disposed around the outer periphery of the second housing 312. Specifically, the sound-absorbing cover 330 has an annular hollow structure, and the sound-absorbing cover 330 is entirely fitted over the second housing 312 and fixed to the second housing 312. In this case, the receiving cavity 302 between the sound-absorbing cover 330 and the outer wall of the second housing 312 is also an annular cavity. Correspondingly, the first sound-absorbing component 320 has an annular structure to adapt to the shape of the receiving cavity 302. The first sound-absorbing component 320 fills the receiving cavity 302 between the sound-absorbing cover 330 and the second housing 312, for example, the first sound-absorbing component 320 can be made to fit against the inner wall of the receiving cavity 302 to ensure that the first sound-absorbing component 320 is in full contact with the outer wall of the air outlet housing 310. Since all areas around the second housing 312 are covered by the first sound-absorbing component 320, no matter which direction the airflow impacts the wall of the second housing 312 and causes vibration noise, the first sound-absorbing component 320 in the corresponding area can effectively absorb the noise, forming all-round noise reduction without dead angles and comprehensively improving the user experience.

[0058] Furthermore, in some embodiments, the second housing 312 has a plurality of sound-absorbing holes 313, which connect the air outlet channel 301 and the receiving cavity 302. Specifically, see [reference needed]. Figure 3 and Figure 5As shown, a plurality of sound-absorbing holes 313 are evenly arranged on the second housing 312. For example, the sound-absorbing holes 313 can be round holes, with a diameter of 1mm-4mm, and the spacing between adjacent sound-absorbing holes 313 is 0.5mm-2mm. Of course, the arrangement of the sound-absorbing holes 313 is not limited to the above example, and the number of sound-absorbing holes 313 can be adapted to the size of the second housing 312, as long as it can cover the main area of ​​the second housing 312 as much as possible. Thus, the sound energy in the air outlet channel 301 can be guided to the first sound-absorbing component 320 of the receiving cavity 302 through the sound-absorbing holes 313, so that the energy is attenuated in the pores of the first sound-absorbing component 320, thereby optimizing the noise transmission path and improving the noise absorption efficiency. In addition, the water vapor in the air outlet channel 301 can also be absorbed by the first sound-absorbing component 320. At the same time, due to the blocking effect of the sound-absorbing cover 330, the airflow entering the receiving cavity 302 and the entrained water vapor will not be discharged from the receiving cavity 302, thereby effectively preventing water vapor from being discharged.

[0059] In one embodiment, the exhaust assembly includes a power component and a mounting base, the power component being connected to the mounting bracket via the mounting base, and the outlet of the power component being connected to the exhaust duct.

[0060] Further, see Figures 1 to 6 As shown, in some embodiments, the exhaust assembly 200 includes a power component 210 and a mounting base 220. The outlet of the power component 210 is connected to the air outlet channel 301. The power component 210 provides power to the exhaust assembly 200. For example, the power component 210 can be a motor-driven fan or other equipment. During operation, the motor drives the impeller to rotate, generating negative pressure to achieve exhaust, and then guides the airflow to the air outlet channel 301 through its own outlet. The power component 210 is connected to the mounting bracket 100 through the mounting base 220, that is, the mounting base 220 connects the power component 210 and the mounting bracket 100. The mounting base 220 can buffer the vibration of the power component 210, reduce the resonance noise generated by the power component 210 being fixed to the mounting bracket 100, and improve the structural stability of the exhaust assembly 200, thereby extending the service life of the exhaust assembly 200.

[0061] Optionally, the mounting base 220 can be made of materials with a certain degree of rigidity and cushioning, such as plastic. This helps the mounting base 220 absorb some of the vibration energy, reducing the vibration transmitted to the mounting bracket 100, and thus reducing the overall vibration noise of the cleaning equipment.

[0062] Further, see Figures 3 to 5As shown, in some embodiments, the air outlet structure 10 further includes a sealing member 400. Specifically, the sealing member 400 is disposed between the power component 210 and the mounting bracket 100, and at least a portion of the structure of the sealing member 400 surrounds the inlet of the power component 210. See also Figure 2 As shown, the mounting bracket 100 has an air inlet channel 110. The inlet of the air inlet channel 110 connects to the interior of the cleaning equipment, and the outlet of the air inlet channel 110 connects to the inlet of the power component 210, thereby drawing air into the cleaning equipment via the air inlet channel 110. For example, the sealing component 400 can be configured as an annular sealing ring structure, so that the shape of the sealing component 400 is adapted to the structure around the inlet of the power component 210, thereby covering the gap between the inlet of the power component 210 and the mounting bracket 100, while ensuring that the inlet of the power component 210 is connected to the air inlet channel 110. Since the power component 210 contacts the mounting bracket 100 through the sealing component 400, on the one hand, the sealing component 400 can prevent gas leakage and avoid abnormal airflow; on the other hand, the sealing component 400 can block the noise inside the power component 210 from leaking outward from between the power component 210 and the mounting bracket 100, and can also reduce the vibration noise between the power component 210 and the mounting bracket 100, further reducing the overall noise of the cleaning equipment.

[0063] Optionally, the sealing component 400 can be made of a material with elasticity and sealing properties, such as soft materials like rubber or silicone. In this case, the elastic material of the sealing component 400 can further absorb the vibration transmitted from the power component 210 to the mounting bracket 100. Combined with the vibration damping effect of the mounting base 220, the vibration noise can be minimized, while ensuring the connection stability between the air inlet channel 110 and the inlet of the power component 210, thus avoiding sealing failure due to vibration.

[0064] Further, see Figures 3 to 6As shown, in some embodiments, the mounting base 220 is sleeved outside the power component 210. For example, the mounting base 220 can be configured as a generally annular structure, sleeved outside the power component 210. When the mounting base 220 is connected and fixed to the mounting bracket 100, the power component 210 is sandwiched between the mounting base 220 and the mounting bracket 100. Furthermore, the sealing component 400 is disposed on the side of the power component 210 facing away from the mounting base 220, and the sealing component 400 abuts against the power component 210 and the mounting bracket 100, that is, the sealing component 400 abuts against both the power component 210 and the mounting bracket 100. Therefore, one side of the power component 210 is fixed to the mounting bracket 100 by the fixing seat 220, and the other side of the power component 210 abuts against the mounting bracket 100 by the sealing component 400, so that the power component 210 and the mounting bracket 100 do not have direct contact. The fixing seat 220 and the sealing component 400 can buffer the resonance noise between the power component 210 and the mounting bracket 100, and achieve a better noise reduction effect.

[0065] Furthermore, in some embodiments, the mounting bracket 100 is provided with at least one connecting shaft 120, and the fixing seat 220 is provided with at least one fixing hole 221. The connecting shaft 120 passes through the fixing hole 221, and the connecting shaft 120 has a connecting hole 121 at one end opposite to the mounting bracket 100. The air outlet structure 10 also includes a connector (not shown in the figure), which passes through the connecting hole 121, so that the fixing seat 220 is connected to the mounting bracket 100 through the connector. For example, see... Figures 1 to 6As shown, the mounting bracket 100 has four connecting shafts 120, which are cylindrical and protrude from the mounting bracket 100. Each connecting shaft 120 has a connecting hole 121 along its axial direction, with the opening of the connecting hole 121 located at the end of the connecting shaft 120 opposite to the mounting bracket 100. The fixing seat 220 is a roughly annular structure, with four fixing holes 221 along its circumference. The four connecting shafts 120 correspond one-to-one with the four fixing holes 221. The connector can be configured as a roughly elongated structure, and at least a portion of the connector's structure should have a dimension larger than the inner diameter of the fixing hole 221, preventing the connector from completely passing through the fixing hole 221. Therefore, when the mounting bracket 100 is connected to the fixing base 220, the connecting shaft 120 on the mounting bracket 100 is inserted into the corresponding fixing hole 221 on the fixing base 220. Then, the connector is inserted into the connecting hole 121 of the connecting shaft 120, thus connecting and fixing the connector to the connecting shaft 120. This prevents the connecting shaft 120 from detaching from the fixing hole 221, ensuring the stability of the connection between the fixing base 220 and the mounting bracket 100. Furthermore, compared to the connection method where the power component 210 is directly fixed to the mounting bracket 100, in this embodiment, the power component 210 and the mounting bracket 100 are connected and fixed through the connecting shaft 120 and the connector. This reduces the resonance noise generated by directly fixing the power component 210 to the mounting bracket 100, further reducing the noise during the use of the air outlet structure 10. In a specific example, the connector can be a screw, and the connecting hole 121 can be a threaded hole, allowing the connector to be threadedly connected to the connecting shaft 120 through the connecting hole 121, facilitating disassembly and maintenance. Of course, in other optional embodiments, the number of connecting shafts 120 and fixing holes 221 can also be two, three, five, six, etc., as long as the fixing seat 220 can be connected to the mounting bracket 100.

[0066] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air outlet structure, characterized in that, The air outlet structure includes: Mounting bracket; An exhaust assembly, which is connected to the mounting bracket; An air outlet assembly includes an air outlet housing, a first sound-absorbing component, and a sound-absorbing cover. The air outlet housing has an air outlet channel inside, which is connected to the outlet of the exhaust assembly. The sound-absorbing cover is disposed outside the air outlet housing and forms a receiving cavity with the air outlet housing. The first sound-absorbing component is disposed inside the receiving cavity.

2. The air outlet structure according to claim 1, characterized in that, The sound-absorbing outer cover is sealed to the air outlet shell; And / or, the surface of the sound-absorbing cover that forms the receiving cavity is a closed surface.

3. The air outlet structure according to claim 1, characterized in that, The sound-absorbing cover is detachably connected to the air outlet housing.

4. The air outlet structure according to claim 1, characterized in that, At least one of the sound-absorbing cover and the air outlet housing is made of a flexible material.

5. The air outlet structure according to claim 1, characterized in that, The air outlet assembly also includes a second sound-absorbing component, which is disposed at the outlet of the air outlet channel.

6. The air outlet structure according to claim 5, characterized in that, The second sound-absorbing component includes breathable sound-absorbing cotton, which fills the outlet of the air outlet channel.

7. The air outlet structure according to any one of claims 1 to 6, characterized in that, The air outlet housing includes a first housing and a second housing connected sequentially along the air outlet direction. The first housing is connected to the outlet of the exhaust assembly, and the interior of the second housing communicates with the interior of the first housing to form the air outlet channel. The sound-absorbing outer cover is disposed outside the second housing and forms a receiving cavity between the outer cover and the second housing.

8. The air outlet structure according to claim 7, characterized in that, The sound-absorbing cover is arranged around the outer periphery of the second housing, and the first sound-absorbing component is filled in a ring shape between the sound-absorbing cover and the second housing.

9. The air outlet structure according to claim 7, characterized in that, The second housing has a plurality of sound-absorbing holes, which connect the air outlet channel and the receiving cavity.

10. The air outlet structure according to claim 1, characterized in that, The exhaust assembly includes a power component and a mounting base. The power component is connected to the mounting bracket via the mounting base, and the outlet of the power component is connected to the exhaust duct.

11. The air outlet structure according to claim 10, characterized in that, The air outlet structure also includes a sealing component disposed between the power component and the mounting bracket, and at least a portion of the sealing component surrounds the inlet of the power component. The mounting bracket has an air inlet channel, and the inlet of the power component communicates with the air inlet channel.

12. The air outlet structure according to claim 11, characterized in that, The mounting base is sleeved on the outside of the power component, and the sealing component is located on the side of the power component opposite to the mounting base.

13. The air outlet structure according to claim 10, characterized in that, The mounting bracket is provided with at least one connecting shaft, the fixing base is provided with at least one fixing hole, the connecting shaft passes through the fixing hole, and a connecting hole is opened at the end of the connecting shaft away from the mounting bracket; The air outlet structure also includes a connector, which passes through the connection hole so that the fixed base is connected to the mounting bracket through the connector.

14. A cleaning device, characterized in that, The cleaning device includes the air outlet structure as described in any one of claims 1-13.

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