Fan blade assembly for dust removal equipment and portable dust removal equipment

Abstract

The embodiment of the utility model relates to the technical field of cleaning appliances, and particularly discloses a fan blade assembly for dust removal equipment and portable dust removal equipment, the dust removal equipment comprises a handheld mini shell, a cavity is arranged in the shell, and a dust suction port communicated with the outside is arranged at one end of the cavity; the fan blade assembly comprises a base plate and centrifugal blades, the base plate is contained in the cavity, and the centrifugal blades are fixed to the side, facing the dust suction opening, of the base plate. Each centrifugal blade comprises a first side close to the center of the base plate and a second side close to the edge of the base plate, the portion, from the first side to the second side, of each centrifugal blade is in an arc shape, and the height, from the first side to the second side, of each centrifugal blade is gradually reduced, so that the contact area between the centrifugal blades and sucked airflow is increased when the centrifugal blades shear air. According to the utility model, through reasonable design of the shape characteristics of the centrifugal blades, more airflow can interact with the surfaces of the blades, so that the attraction to the airflow and the cleaning efficiency of dust removal are improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model relates to the technical field of cleaning appliances, in particular to a fan blade assembly for dust removal equipment and portable dust removal equipment. BACKGROUND

[0002] A dust collector is a cleaning device widely used in human life and industrial production. The working principle of the dust collector is to use a driving motor to drive a blade to rotate at high speed to generate a powerful airflow in a sealed shell, forming a negative pressure to attract air and dust and pollutants carried by the air into the dust collector.

[0003] The existing dust collector usually uses a fan blade to generate airflow to absorb dust particles in the air. However, some conventional fan blade structures have deficiencies in the area and efficiency of contact with the airflow, resulting in unsatisfactory final dust removal effect. Therefore, under the background of the increasing demand for portable and small dust collectors in the market, it is crucial to develop a fan blade assembly with high energy efficiency and convenient assembly to improve the cleaning efficiency of the dust collector. SUMMARY

[0004] Therefore, it is necessary to provide a fan blade assembly for dust removal equipment and a portable dust removal equipment capable of improving the convenience and dust removal cleaning effect.

[0005] The embodiment of the present application provides a fan blade assembly for dust removal equipment, which comprises a hand-held mini shell, a cavity in the shell, and a dust suction port communicating with the outside at one end of the cavity.

[0006] A chassis is accommodated in the cavity.

[0007] A centrifugal blade is fixed to one side of the chassis facing the dust suction port.

[0008] The centrifugal blade comprises a first side close to the center of the chassis and a second side close to the edge of the chassis, and the shape of the centrifugal blade from the first side to the second side is arc-shaped, and the height of the centrifugal blade gradually decreases from the first side to the second side to increase the contact area with the suction airflow when the centrifugal blade cuts the wind.

[0009] In one embodiment, the centrifugal blade comprises first type blades and second type blades.

[0010] The first type blades and the second type blades are sequentially and spacedly arranged on the chassis in a circumferential array, and the projection length of the first type blades on the chassis is greater than that of the second type blades in the direction perpendicular to the axis of the chassis.

[0011] In one of the embodiments, the first side of the first type of blade is closer to the axis of the base than the second type of blade; and the end surface of the first side of the first type of blade and the first side of the second type of blade are both arc-shaped and are arcs of the same circle.

[0012] In one of the embodiments, in the direction of the axis of the base, the first side of the first type of blade and the first side of the second type of blade are both inclined outward from the center of the base by a preset angle, and the second side of the first type of blade and the second side of the second type of blade are both inclined outward from the edge of the base by a preset angle, so as to increase the contact area between the centrifugal blades and the airflow while keeping the projection area of the base in the direction of the axis unchanged.

[0013] In one of the embodiments, at least two reinforcing ribs are arranged on the side of the base away from the centrifugal blades in the direction of the axis of the base, and the reinforcing ribs are used to increase the strength of the base.

[0014] In one of the embodiments, the dust removal device further comprises:

[0015] A wind pressure motor is fixed in the cavity, and an output shaft of the wind pressure motor is used to sleeve the base;

[0016] The output shaft is used to drive the base to rotate, so as to synchronously drive the centrifugal blades to rotate, thereby generating wind pressure in the cavity, and the wind pressure is used to suck the airflow carrying dust particles into the cavity from the dust suction port.

[0017] In one of the embodiments, an assembly hole is arranged at the center of the cone of the base, and a mounting bevel is arranged on the side of the assembly hole close to the wind pressure motor.

[0018] The assembly hole is used to extend the end of the output shaft, so that the base sleeves the end of the output shaft, and the mounting bevel is used to enlarge the mounting area of the base when the base is sleeved on the output shaft.

[0019] In one of the embodiments, the shell comprises a first shell and a second shell which are detachable, and the first shell and the second shell jointly enclose the cavity;

[0020] The part of the cavity in the first shell is divided into a dust cavity, and the part of the cavity in the second shell is divided into a mounting cavity.

[0021] The dust suction port is arranged at the end of the dust cavity away from the mounting cavity, and the fan blade assembly is fixed in the mounting cavity.

[0022] In one of the embodiments, the dust removal device further comprises:

[0023] A mounting member in a cylindrical structure fixed in the mounting cavity for covering and fixing the air pressure motor;

[0024] The mounting member is provided with an opening on the side close to the dust suction port of the output shaft of the air pressure motor, and the end of the output shaft is extended out of the opening so that the bottom disc is sleeved on the end of the output shaft.

[0025] The embodiment of the application also provides a portable dust removal device, which comprises the above-mentioned wind blade assembly for increasing the contact area between the centrifugal blade and the suction airflow when the airflow carrying dust particles is sucked into the cavity from the dust suction port.

[0026] The wind blade assembly for the dust removal device and the portable dust removal device have the following advantages. On the one hand, the wind blade assembly is accommodated in the cavity by a hand-held mini shell, which greatly reduces the actual volume of the dust removal device, makes the device easy to carry, and is suitable for cleaning requirements in various occasions, thereby improving the portability and operability of the dust removal device. On the other hand, by means of reasonable design of the shape characteristics of the centrifugal blade, the first side to the second side presents an arc shape, which avoids the airflow loss caused by the linear shape. Meanwhile, the design of the gradually decreasing height feature is beneficial to increasing the contact area when the airflow passes through, ensures more airflow to interact with the surface of the wind blade, thereby improving the suction force and efficiency of the airflow, and further improving the dust removal effect and the cleaning effect of the dust removal device.

[0027] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed to be used in the embodiments of the application will be briefly introduced. Obviously, the drawings described below are only some embodiments of the application, and other drawings can be obtained by the drawings without creative labor.

[0029] Figure 1 is a perspective view of a portable dust removal device according to an exemplary embodiment;

[0030] Figure 2 is a cutaway view of a portable dust removal device according to an exemplary embodiment;

[0031] Figure 3 is a perspective view of a blade assembly according to an example embodiment;

[0032] Figure 4 is a top view of a blade assembly according to an example embodiment;

[0033] Figure 5 is a side view of a blade assembly according to an example embodiment;

[0034] Figure 6 is a bottom view of a blade assembly according to an example embodiment;

[0035] Figure 7 is a side sectional view of a blade assembly according to an example embodiment;

[0036] Figure 8 is Figure 2 is an enlarged view of G in FIG. 1;

[0037] Figure 9 is a front sectional view of a wind pressure motor according to an example embodiment;

[0038] Figure 10 is a front view of a mounting according to an example embodiment;

[0039] Figure 11 is a perspective view of a portable dust removal device according to another example embodiment;

[0040] Figure 12 is a sectional view of a portable dust removal device according to another example embodiment.

[0041] In the drawings, reference numeral: 10, dust removal device; 100, housing; 101, cavity; 101a, dust cavity; 101b, mounting cavity; 102, dust suction port; 103, air outlet; 20, portable dust removal device; 200, blade assembly; 210, chassis; 211, assembly hole; 212, mounting bevel; 220, centrifugal blade; 221, first type blade; 222, second type blade; 230, reinforcing rib; 300, wind pressure motor; 310, output shaft; 320, metal support; 330, bearing set; 340, rotor set; 350, stator set; 360, motor drive board; 400, mounting; 401, opening; 402, containing cavity; 403, dust collecting sheet; 410, mounting seat; 420, connecting element; 430, mounting cylinder; 910, cleaning accessory; 920, filter assembly; 930, power supply assembly; 940, cover assembly; 950, driving source; A1, first side of centrifugal blade; A2, second side of centrifugal blade. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0043] In the present application, the term “embodiment” means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The phrase appears at various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to each other. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0044] The term “and / or” in the embodiments of the present application means any and all possible combinations of one or more of the associated listed items. It should be noted that when used in the specification, “include” or “contain” specifies the presence of stated features, integers, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, elements and / or components, and / or groups thereof, and is intended to cover non-exclusive cases. For example, products or devices including a series of units are not limited to the listed units, but can optionally include units not listed, or can optionally include other units inherent to these products or devices.

[0045] In addition, although the terms “first”, “second” and the like are used repeatedly to describe various elements and the like in the present application, these elements should not be limited by these terms. These terms are only used to distinguish one element from another, and are not used to describe a specific order. For example, the first shell can be referred to as the second shell, and the second shell can also be referred to as the first shell, only the scope included by the two is different, without departing from the scope of the present application, the first shell and the second shell are both shells of related accessories in the portable dust removal equipment, only the two are not the same structure design of the accessory shell.

[0046] To describe the technical content, technical steps, purposes and effects of the present application in detail, the following will be described in conjunction with the embodiments and in conjunction with the drawings.

[0047] In the existing dust removal equipment, the fan blade assembly usually adopts fixed blade shape and structure, which fails to effectively optimize the contact area with airflow, resulting in low efficiency of airflow treatment and dust adsorption. Especially in the mini dust removal equipment, due to the space limitation, how to design an efficient fan blade assembly in the limited cavity is particularly important. Therefore, an innovative fan blade assembly design is needed to improve the overall performance of the dust removal equipment.

[0048] The utility model provides a fan blade assembly 200 for dust removal equipment 10, please refer to Figures 1 to 6 The dust removal equipment 10 includes a hand-held mini shell 100, which has a cavity 101 inside the shell 100, and a dust suction port 102 communicating with the outside is arranged at one end of the cavity 101. The fan blade assembly 200 includes a chassis 210 and a centrifugal blade 220, wherein the chassis 210 is accommodated in the cavity 101, and the centrifugal blade 220 is fixed to the side of the chassis 210 facing the dust suction port 102.

[0049] Specifically, for the shell 100, please continue to refer to Figure 1 And Figure 2 The shell 100 for the dust removal equipment 10 is a humanized hand-held mini shell, which is carefully designed in structure to make it small and portable. The shell 100 is internally provided with a cavity 101 for cleaning, which constitutes the basic framework of the dust removal equipment.

[0050] In some embodiments, as shown in Figure 1 The shape of the dust removal equipment is mainly presented by the shell 100, in order to facilitate the user to hold, the shape of the shell 100 can be an elongated cylindrical shell structure, and its size is also more miniaturized compared with the existing dust removal equipment, with a diameter of about 2.5 centimeters and a length of about 15 centimeters, that is, the shape and size of the dust removal equipment are slightly close to the pen used in daily life, thereby facilitating the user to hold and use such a clean and precise small equipment.

[0051] In some embodiments, as shown in Figure 2 The shell 100 is a hollow structure, that is, it has a cavity 101 inside the shell 100, and a dust suction port 102 communicating with the outside is arranged at one end of the cavity 101, and an air outlet 103 communicating with the outside is arranged at the other end, wherein the dust suction port 102 is close to the surface to be cleaned, for sucking the garbage swept on the surface to be cleaned, and the air outlet 103 is used to ensure smooth airflow to discharge the filtered air, thereby improving the overall cleaning efficiency of the equipment. At the same time, the mini design of the cavity 101 ensures the flexibility of the equipment in use.

[0052] In some embodiments, the suction port 102 and the air outlet 103 are respectively arranged at two end portions of the shell 100, the cross-sectional shapes of the suction port 102 and the air outlet 103 are circular, and the axes of the suction port 102, the air outlet 103 and the cavity 101 are collinear.

[0053] In the embodiments of the present application, the cross sections of the cavity 101, the suction port 102 and the air outlet 103 are circular, so as to make the suction uniform, keep the overall size consistent, have no difference in angle, and keep the wall thickness of the shell 100 consistent, thereby ensuring the overall strength of the shell 100. In some embodiments, the cross-sectional shape of the cavity 101 can be elliptical or polygonal, the cross-sectional shapes of the suction port 102 and the air outlet 103 can be waist-shaped or rectangular polygonal, and the positions of the suction port 102 and the air outlet 103 can be arranged to deviate from the axis of the cavity 101.

[0054] The specific shape and size of the shell 100 only need to meet the convenience of user holding and miniaturization compared with existing devices, and the present application does not make specific limitations thereon. For example, in other embodiments, the shell 100 can be a shell structure with an elliptical cross section, or a relatively short and thick shape with a large diameter, and the specific size can also be other numerical values.

[0055] In the embodiments of the present application, the axis of the shell 100 is the central axis direction of the cylindrical shell 100, and the airflow direction of the fan blade assembly 200 during work is parallel to the axis direction. In other embodiments, when the shell 100 is not cylindrical, the axis of the shell 100 is the extension direction of the main body structure, and the airflow direction is parallel to the axis direction.

[0056] For the fan blade assembly 200, the fan blade assembly 200 is an indispensable component in the dust removal equipment 10, responsible for pushing air and generating suction, and is a key factor to achieve efficient cleaning. Through its design and movement, the fan blade assembly 200 can effectively suck in and handle dust and dirt in the surrounding environment.

[0057] The fan blade assembly 200 is generally designed in a fan shape or a spiral shape to increase the surface area, thereby effectively pushing air flow. The fan blade assembly 200 is generally made of lightweight and strong materials such as plastic or metal alloy to ensure good durability when rotating at high speed.

[0058] In some embodiments, through the high-speed rotation of the wind pressure motor 300, the fan blade assembly 200 can rotate synchronously and cause the internal air pressure to decrease, thereby generating a negative pressure effect. The negative pressure generated by the fan blade assembly 200 can effectively suck in the surrounding air and accelerate the air, forming a strong air flow, thereby attracting external air and the dust, particles and impurities carried thereby into the dust removal device 10. In some advanced designs, the fan blade assembly 200 can also help separate fine dust and particles, so that they can be effectively collected or filtered.

[0059] Further, the fan blade assembly 200 includes a base plate 210 and centrifugal blades 220, wherein the base plate 210 is accommodated in the cavity 101, the centrifugal blades 220 are fixed on the base plate 210 and located on the side of the base plate 210 facing the dust suction port 102, the base plate 210 is coaxial with the axis of the shell 100, i.e. the base plate 210 is coaxially arranged with the shell 100, and the base plate 210 is in the form of a conical side wall.

[0060] In some embodiments, referring to Figure 3 For the above-mentioned base plate 210, the base plate 210 can be in the form of a convex structure such as a spherical surface, an arc surface, a conical surface, etc., so as to increase the installation area of the centrifugal blades 220 on the base plate 210 without changing the projection area of the base plate 210 on the axis.

[0061] In the case of the base plate 210 in the form of a conical side wall, the included angle between the conical side wall and the axis thereof can be between 15° and 75°, for example, 15°, 23°, 35°, 45° and 75°, etc., which is not specifically limited herein.

[0062] In some embodiments, the axis mentioned for the purpose of describing the orientation refers to the central axis of the conical body of the conical side wall of the base plate 210, unless otherwise specified, and in the embodiments of the present application, the base plate 210 and the shell 100 are coaxially arranged, i.e. in the embodiments of the present application, the axis of the base plate 210 is also the axis of the shell 100.

[0063] The conical side wall structure of the base plate 210 has important advantages in terms of function in addition to its aesthetic appearance. Through optimized design, the actual surface area of the base plate 210 is effectively increased compared with the projection area thereof. Such a shape can maximize the installation area of the blades, create conditions for the arrangement of more blades, so that the blades can be arranged more densely, significantly increase the contact area of the centrifugal blades 220 with the air flow. Under the same space limitation, the friction and pushing effect can be increased, the strength of the wind pressure can be improved, and the high demand of the portable dust removal device 10 in the cleaning process can be effectively met.

[0064] In other embodiments, the projection of the chassis 210 on the axis can be circular, elliptical, or polygonal. In addition, if there is sufficient space in the mounting component 400, the chassis 210 can also be a planar plate structure, with its main structure not tilted or raised on the axis. Or, if weight is not considered, the chassis 210 can be directly set as a solid conical or spherical structure. No specific limitation is made here.

[0065] In one embodiment, please refer to Figure 4 and Figure 5 The centrifugal blade 220 includes a first side A1 near the center of the chassis and a second side A2 near the edge of the chassis. The shape of the centrifugal blade 220 from the first side A1 to the second side A2 is arc-shaped, and the height of the centrifugal blade 220 from the first side A1 to the second side A2 gradually decreases, so as to increase the contact area with the intake airflow when the centrifugal blade 220 cuts the air.

[0066] Specifically, the blade assembly 200 includes centrifugal blades 220, which are arc-shaped and arranged in a circumferential array on the chassis 210. The arc-shaped arrangement of the centrifugal blades 220 allows for a longer design within the same chassis 210 size, thereby increasing the contact area between the centrifugal blades 220 and the airflow. In the airflow direction, the centrifugal blades 220 have a first side A1 located upstream and a second side A2 located downstream. Axially, the distance from the first side A1 to the chassis 210 is greater than the distance from the second side A2. This design increases the contact area between the first side A1 and the airflow during air cutting, thereby increasing the airflow binding force and pushing more airflow into the air passages between the centrifugal blades 220. Furthermore, the height of the airflow from the first side A1 to the second side A2 gradually decreases, and the binding force of the centrifugal blades 220 on the airflow gradually decreases, releasing some of the airflow energy, reducing the collision kinetic energy between the outflowing blades and the second housing 120, reducing airflow energy loss, and improving airflow efficiency.

[0067] In some embodiments, such as Figure 4 As shown, the chassis 210 has a circular projection in its forward direction, and multiple centrifugal blades 220 are arranged sequentially around the chassis 210 in a clockwise direction. Each centrifugal blade 220 includes a first side A1 near the center of the chassis and a second side A2 near the edge of the chassis, and the centrifugal blade 220 has an arc shape between the first side A1 and the second side A2. Further, as... Figure 5As shown, in the axial direction of the chassis 210, each centrifugal blade 220 gradually decreases in height from the first side A1 to the second side A2, so that the centrifugal blade 220 as a whole presents a taper on the chassis 210. Therefore, by designing the shape feature of the centrifugal blade 210: that is, the arc shape from the first side A1 to the second side A2, the airflow loss caused by the linear shape is avoided, and the gradually decreasing height feature is designed to increase the contact area when the airflow passes through, ensuring that more airflow interacts with the surface of the blade, thereby improving the suction force and efficiency of the airflow. This unique design can effectively capture dust carried in the airflow and improve dust removal effect.

[0068] In some embodiments, please continue to refer to Figure 5 In the axial direction of the chassis 210, the centrifugal blade 220 is inclined to the outside of the chassis 210 with a preset angle a, so as to increase the contact area of the centrifugal blade 220 with the airflow without changing the projection area of the chassis 210 in the axial direction.

[0069] Specifically, in order to reduce the weight of the centrifugal blade 220, in the axial direction, part of the centrifugal blade 220 protrudes from the chassis 210, and the centrifugal blade 220 is arranged in an outwardly inclined manner, which can reduce the projection area of the chassis 210, that is, the volume of the chassis 210, while ensuring the same flow area, thereby reducing the weight of the centrifugal blade 220 and the weight of the dust removal equipment 10, facilitating the user to move and use, and improving the user experience.

[0070] In some embodiments, please refer to Figure 6 In the axial direction of the chassis 210, at least two reinforcing ribs 230 are arranged on the side of the chassis 210 away from the centrifugal blade 220, which are used to increase the strength of the chassis 210.

[0071] Specifically, as Figure 6 shown, the chassis 210 is provided with eight reinforcing ribs 230 on the side away from the centrifugal blade 220 in the axial direction. Among them, the reinforcing rib 230 improves the overall strength and rigidity of the chassis 210 by dispersing and transmitting external forces applied to the chassis 210, reduces the risk of deformation or damage caused by external forces, avoids the deformation of the centrifugal blade 220 due to stress under the action of wind pressure, thereby affecting the flow guiding effect of the centrifugal blade 220 and damaging the blade. And by arranging the reinforcing rib 230, the material use of the chassis 210 can be optimized, the overall weight can be reduced, and the strength can be maintained.

[0072] The technical effect of the above scheme is that: on the one hand, the fan blade assembly is accommodated in the cavity by a hand-held mini shell, greatly reducing the physical volume of the dust removal equipment, making the equipment easy to carry, suitable for cleaning needs in various occasions, thereby improving the portability and operability of the dust removal equipment; on the other hand, unlike the prior art, the present scheme rationally designs the shape characteristics of the centrifugal blade, which is arc-shaped between the first side and the second side, avoiding the airflow loss that may be caused by linear shape, and at the same time, the design of gradually decreasing height is beneficial to increase the contact area when the airflow passes through, ensuring that more airflow interacts with the surface of the fan blade, thereby improving the attraction and efficiency of the airflow, and thus improving the dust removal effect and enhancing the cleaning effect of the dust removal equipment.

[0073] Those skilled in the art can understand that, Figures 1 to 6 The fan blade assembly for the dust removal equipment shown in the above embodiment is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the dust removal equipment to which the scheme of the present application is used. The specific fan blade assembly can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0074] Please continue to refer to Figure 3 and Figure 4 For the centrifugal blade 220 in the above embodiment, the centrifugal blade 220 includes first type blades 221 and second type blades 222; wherein the first type blades 221 and the second type blades 222 are sequentially and spacedly arranged in a circumferential array on the base plate 210, and in the direction perpendicular to the axis of the base plate 210, the projection length of the first type blades 221 on the base plate 210 is greater than that of the second type blades 222.

[0075] Specifically, in order to further reduce the loss of wind power, the centrifugal blade 220 is composed of the first type blades 221 and the second type blades 222; wherein the first type blades 221 and the second type blades 222 are sequentially and spacedly arranged, and in the direction perpendicular to the axis, the projection length of the first type blades 221 on the base plate is greater than that of the second type blades 222.

[0076] Wherein, the grouping design of the centrifugal blade 220 can ensure the space of the centrifugal blade 220 and the airflow cutting inlet when the cross-sectional size of the centrifugal blade 220 is small, and also increase the flow area of the centrifugal blade 220, in addition, the grouping design of the centrifugal blade 220 can also perform secondary flow distribution on the airflow, so that the airflow is more uniformly dispersed when passing through the centrifugal blade 220, and the wind power loss is further reduced.

[0077] In one embodiment, the distance between the first side A1 of the first type of blade 221 and the axis of the chassis 210 is smaller than that of the second type of blade 222; and the end faces of the first side A1 of the first type of blade 221 and the first side A1 of the second type of blade 222 are both arc-shaped and are the same circular arc.

[0078] Specifically, such as Figure 4 As shown, there are five of each type of blade 221 and type of blade 222. The five type 1 blades 221 and five type 2 blades 222 are arranged in a circumferential array around the axis, with the type 1 blades 221 and type 2 blades 222 spaced apart sequentially. In the direction perpendicular to the axis, the projected length of the type 1 blade 221 on the chassis 210 is greater than the projected length of the type 2 blade 222 on the chassis 210. The end faces of the first side A1 of the type 1 blade 221 and the first side A1 of the type 222 are both arc-shaped and belong to the same circular arc. The distance from the first side A1 of the type 1 blade 221 to the axis is less than the distance from the first side A1 of the type 222 to the axis. Furthermore, in the direction perpendicular to the axis, the distances from the type 1 blades 221 and type 222 on the same diameter of the chassis 210 to the chassis 210 are the same.

[0079] In some embodiments, the number and size of the first type of blades 221 and the second type of blades 222 are designed to optimize the spatial layout and wind power loss based on the size of the dust removal equipment 10. However, in other embodiments, the number of the first type of blades 221 and the second type of blades 222 can be 3, 6, or 9, etc. Furthermore, for structural simplification and ease of manufacturing, the centrifugal blades 220 are composed of the first type of blades 221 and the second type of blades 222. In other embodiments, the centrifugal blades 220 may also include a third centrifugal blade 220 or a fourth centrifugal blade 220, etc., without specific limitations here.

[0080] By employing a layered and spaced arrangement of the first type of blades 221 and the second type of blades 222, the airflow direction is more evenly dispersed when passing through the centrifugal blades 210. This avoids wind power loss caused by airflow converging at a specific location. The uniform distribution of airflow ensures that each area can fully participate in the airflow propulsion process, further enhancing the overall wind pressure. Furthermore, the design of the distance from the first side A1 of the first type of blade 221 to the axis is smaller than the distance of the second type of blade 222, allowing the first type of blade 221 to more effectively guide the airflow into the second type of blade 222 under the action of centrifugal force, thereby achieving the purpose of secondary flow diversion.

[0081] The airflow is more evenly distributed by secondary flow separation, thereby effectively reducing wind loss and improving the overall performance of the device. For example, when the airflow is evenly distributed, its kinetic energy is more fully utilized, avoiding unnecessary energy loss in areas with insufficient pressure. Further, the airflow can be more effectively gathered and pushed after passing through the carefully designed blade assembly 200, thereby driving more dust and impurities into the device and improving cleaning efficiency.

[0082] In an embodiment, in the axial direction of the chassis 210, the first side A1 of the first type of blades 221 and the second type of blades 222 is inclined outward from the center of the chassis with a preset angle β1, and the second side A2 of the first type of blades 221 and the second type of blades 222 is inclined outward from the edge of the chassis with a preset angle β2, so as to increase the contact area of the centrifugal blades 220 with the airflow while keeping the projection area of the chassis 210 unchanged in the axial direction.

[0083] In order to reduce the weight of the centrifugal blades 220, in the axial direction, the first side A1 of the centrifugal blades 220 is designed to deviate from the center of the chassis, and the second side A2 is designed to extend beyond the edge of the chassis, i.e., the centrifugal blades 220 are designed to be inclined outward as a whole, which can reduce the projection area of the chassis 210 while keeping the same flow area, i.e., reduce the volume of the chassis 210, thereby reducing the weight of the centrifugal blades 220 and the weight of the dust removal device 10, facilitating user movement and use, and improving user experience.

[0084] Specifically, as shown in Figure 3 and Figure 7 each first type of blade 221 and second type of blade 222 is inclined outward from the center of the chassis from the connection to the end of the first side A1, and each first type of blade 221 and second type of blade 222 is inclined outward from the edge of the chassis from the connection to the end of the second side A2.

[0085] In the specific implementation process of the above technical solution, the fan blade assembly 200 is compact in structure, and the chassis 210 is arranged in the cavity 101 to bear the load and connection functions. The centrifugal blades 220 are composed of the first type of blades 221 and the second type of blades 222, and the difference between the two types of blades enables them to play a more effective airflow guiding role in different areas. In the axial direction, the first type of blades 221 and the second type of blades 222 are inclined towards the outside of the chassis center on the first side A1 close to the center of the chassis, and the selected preset angle β1 can effectively guide the airflow to diffuse outward. At the same time, on the second side A2, the first type of blades 221 and the second type of blades 222 are inclined towards the outside of the edge of the chassis and are provided with a preset angle β2, which is to ensure that the airflow can form a larger contact area when passing through the fan blade, thereby improving the overall airflow processing capacity of the fan blade assembly. Importantly, this design keeps the projection area unchanged in the axial direction of the chassis 210, avoiding the problem of device size expansion caused by increasing the contact area, so that the assembly is still suitable for use in portable dust removal equipment.

[0086] The technical effect of the above scheme is that by designing the first type of blades and the second type of blades with different inclination angles, the contact area with the airflow can be effectively increased while keeping the projection area of the chassis unchanged, thereby significantly improving the working efficiency of the dust removal equipment. This innovative way of combining inclination angle with blade design can optimize the airflow path and improve the processing capacity of the airflow.

[0087] Please continue to refer to Figure 1 and Figure 2 For the shell 100 in the above embodiment, the shell 100 further comprises a detachable first shell 110 and a second shell 120, and the first shell 110 and the second shell 120 jointly enclose a cavity 101; wherein the part of the cavity 101 in the first shell 110 is divided into a dust cavity 101a, and the part of the cavity 101 in the second shell 120 is divided into a mounting cavity 101b; the suction port 102 is arranged at one end of the dust cavity 101a away from the mounting cavity 101b, and the fan blade assembly 200 is fixed in the mounting cavity 101b.

[0088] Specifically, the structure of the shell 100 comprises a detachable first shell 110 and a second shell 120, which jointly enclose a cavity 101. This structure design aims to improve the maintainability and operational convenience of the equipment, and also facilitates the user to clean and maintain them separately after disassembling them.

[0089] Further, inside the cavity 101, the filter assembly 920 is installed in the first shell 110, which divides the cavity 101 into two areas: the mounting cavity 101b and the dust cavity 101a. This design makes the flow of air inside the device more orderly and can effectively separate impurities from clean air.

[0090] Further, as shown in Figure 2 the dust suction port 102 is arranged at one end of the first shell 110 away from the second shell 120 to ensure that dirt and garbage can be quickly sucked in during the cleaning process. At the same time, the cleaning airflow passing through the filter assembly 920 will form in the mounting cavity 101b to flow to the fan blade assembly 200 for flow guiding, and finally discharged through the air outlet 103 to ensure that the released air is clean and pollution-free.

[0091] The filter assembly 920 separates the airflow direction, which optimizes the airflow direction. The garbage on the surface to be cleaned will quickly enter the dust chamber 101a after being sucked into the cavity 101 through the dust suction port 102. The design can effectively capture and store impurities, greatly reducing the risk of impurities flowing back to the environment with the airflow. At the same time, the filtered airflow can smoothly pass through the mounting cavity 101b to the fan blade assembly 200 for flow guiding, thereby improving the overall cleaning efficiency.

[0092] In some embodiments, the first shell 110 and the second shell 120 are both elongated cylindrical shell structures, each with a diameter of 2.5 centimeters, and the first shell 110 and the second shell 120 are fixed by screwing. In the assembled state, the length of the outer shell 100 is about 15 centimeters. The dust chamber 101a and the dust suction port 102 in the shell are coaxially arranged and communicate with each other, and the mounting cavity 101b and the dust chamber 101a are cylindrical in cross-sectional shape, and the cross-sectional shape of the dust suction port 102 is circular.

[0093] The cross sections of the mounting cavity 101b, the dust chamber 101a, the bottom plate 210, and the dust suction port 102 are circular to ensure uniform suction, consistent appearance, and consistent thickness of the outer shell 100. However, the specific shapes of the mounting cavity 101b, the dust chamber 101a, the bottom plate 210, and the dust suction port 102 can also be other styles, such as the cross-sectional shapes of the bottom plate 210, the mounting cavity 101b, and the dust chamber 101a can be elliptical or polygonal, the cross section of the dust suction port 102 can be waist-shaped or rectangular, and the position of the bottom plate 210 can be offset from the axis of the dust chamber 101a. In other embodiments, the first shell 110 and the second shell 120 can be fixed by clamping or inserting, or by a rotating shaft connection and locking structure to open and close, which is not limited here.

[0094] In addition, in the embodiments of the present application, the airflow direction refers to the direction of the gas flowing in the cavity 101, which is approximately the axial direction of the first shell 110 and the second shell 120, which may be slightly offset in the radial direction of the cavity 101 at some positions of the cavity 101 due to the blocking effect of the air guide structure and the internal parts, and the airflow direction described when defining the direction refers to the axial direction of the first shell 110 and the second shell 120, and the outer contour of the first shell 110 and the second shell 120 is cylindrical, and the axis is the central axis of the corresponding cylinder.

[0095] The technical effect of the above scheme is that by designing the cavity of the shell into an installation cavity and a dust cavity, more efficient garbage separation and airflow optimization are achieved. After the cleaning airflow flows through the filter assembly, it can ensure that impurities are effectively isolated, and the purified air is safely discharged to the impeller assembly 200. In addition, the shell structure improves the use stability and cleaning performance of the equipment, not only optimizes the cleaning effect, but also greatly improves the user experience.

[0096] In some embodiments, referring to Figure 8 and Figure 9 The dust removal equipment 10 further comprises a wind pressure motor 300 fixed in the cavity 101, and an output shaft 310 of the wind pressure motor 300 is used to sleeve the chassis 210; wherein the output shaft 310 is used to drive the chassis 210 to rotate, so as to synchronously drive the centrifugal blade 220 to rotate, thereby generating wind pressure in the cavity 101, and the wind pressure is used to suck the airflow carrying dust particles from the dust suction port 102 into the cavity 101.

[0097] Specifically, for the wind pressure motor 300, the wind pressure motor 300 is the core power component of the dust removal equipment 10, responsible for providing the power required to generate airflow and suction. Wherein the wind pressure motor 300 is usually driven by an electric motor, which can convert electrical energy into mechanical energy to drive the centrifugal blade 220 to rotate.

[0098] In an embodiment, please continue to refer to Figure 8 The wind pressure motor 300 is fixedly connected to the inner wall of the shell 100 through a mounting piece 400. Wherein the mounting piece 400 is installed in the shell 100, and the wind pressure motor 300 and the mounting piece 400 are fixedly connected, the wind pressure motor 300 can be located in the middle or downstream of the shell 100 in the flow direction of the airflow, and the wind pressure motor 300 is connected to the mounting piece 400 on the dust removal equipment 10 and located away from the dust suction port 102, used to fix the impeller assembly 200.

[0099] The fan blade assembly 200 is housed within the cavity 101, specifically inside the mounting cavity 101b, thanks to the structure of the wind pressure motor 300. This layout not only effectively utilizes internal space but also reduces the overall weight of the equipment, improving portability. Furthermore, the configuration of the wind pressure motor 300 and fan blade assembly 200 utilizes a high-efficiency wind pressure motor 300 for electric drive, providing ample power to the overall cleaning equipment and ensuring stable operation even under high load conditions. Additionally, the fan blade assembly 200 is mounted on the output shaft 310 of the wind pressure motor 300. This design allows the wind pressure motor 300 to directly drive the fan blades to achieve high-speed rotation, thereby generating high-intensity wind pressure within the cavity 101.

[0100] In one embodiment, continue as follows Figure 9 As shown, the wind turbine motor 300 includes an output shaft 310, a metal bracket 320, a bearing assembly 330, a rotor assembly 340, and a stator assembly 350. The metal bracket 320 is fixed within the mounting component 400 and has a truncated cone structure for covering and fixing the bearing assembly 330. The bearing assembly 330 is housed within the metal bracket 320, and the output shaft 310 supports the rotor assembly 340 and allows the rotor assembly 340 to rotate via the output shaft 310. The output shaft 310 is connected to the rotating shaft of the bearing assembly 330. The stator assembly 350 is sleeved on the peripheral surface of the metal bracket 320. When current passes through the stator assembly 350, the stator assembly 350 generates a rotating magnetic field to drive the output shaft 310 to rotate.

[0101] Specifically, traditional motors have certain limitations in structural design and operational performance, easily leading to problems such as high noise, high heat generation, and low efficiency. Therefore, to meet practical needs, this application provides a wind turbine motor 300 with an improved structure. The metal bracket 320 of this wind turbine motor 300 has a truncated cone structure, designed to enclose and fix the main components, ensuring stable connection and support for each part. The bearing assembly 330 of the wind turbine motor 300 is housed within the metal bracket 320, effectively reducing friction between rotating parts and improving operating efficiency. The output shaft 310 supports the rotor assembly 340 and allows it to rotate smoothly. The output shaft 310 of the wind turbine motor 300 is connected to the rotating shaft in the bearing assembly 330, forming the core part of mechanical power transmission. The stator assembly 350 of the wind turbine motor 300 is fixed to the peripheral surface of the metal bracket 320. When current passes through the stator assembly 350, a rotating magnetic field is generated, driving the output shaft 310 to rotate, playing a crucial role in the motor's operation.

[0102] In other embodiments, please continue as follows Figure 9As shown, the wind pressure motor 300 can also include a motor drive board 360. The motor drive board 360, also known as a motor control board or drive circuit board, is a key electronic component for controlling and driving the motor to work. Its main functions include: ① Motor control, the motor drive board can adjust the working state of the motor, control the start, stop, speed and direction of the motor, etc. ② Power management, the board is usually responsible for converting the input power (such as from the battery or power adapter) into voltage and current suitable for the motor. ③ Signal processing, the drive board can receive signals from the user interface (such as switches, remote controls, etc.), and adjust the working state of the motor according to these signals. ④ Protection function, the motor drive board 360 is usually designed with overload protection, overheat protection and short circuit protection functions, to ensure the safety of the motor and the entire system. ⑤ Feedback system, the drive board is also equipped with sensors that can monitor the running state of the motor (such as speed, temperature, etc.), and dynamically adjust according to the feedback information.

[0103] In an embodiment, as shown in Figure 6 and Figure 9 , a mounting hole 211 is provided at the center of the cone of the chassis 210, and a mounting bevel 212 is provided on the side of the mounting hole 211 close to the wind pressure motor 300; wherein the mounting hole 211 is used to extend the end of the output shaft 310, so that the chassis 210 is sleeved on the end of the output shaft 310, and the mounting bevel 212 is used to enlarge the mounting area of the chassis 210 when it is sleeved on the output shaft 310.

[0104] Specifically, on the one hand, a mounting hole 211 is provided at the center of the cone of the chassis 210, which is used to extend the end of the output shaft 310 to realize the direct connection of the chassis 210 and the output shaft 310. The design of the mounting hole 211 can ensure the accurate butt joint with the output shaft, avoiding unstable operation due to deviation. On the other hand, a mounting bevel 212 is provided on the side of the mounting hole 211 close to the wind pressure motor 300. The design of the bevel is used to enlarge the mounting area of the chassis 210 when it is sleeved on the output shaft 310, so that the chassis can better disperse the stress when connected with the motor, improving the reliability of installation. The presence of the mounting bevel 212 makes the chassis 210 easier to butt joint with the output shaft 310 during installation, reducing errors and improving the overall installation accuracy.

[0105] In a specific application scenario, as shown in Figure 9As shown, the angle between the conical side wall of the base plate 210 and the axis is 63°, and the output shaft 310 of the wind pressure motor 300 is fixed to the assembly hole 233 of the base plate 210 through the installation bevel 212, so as to fix the base plate 210 to the output shaft 310. The projection of the base plate 210 on the axis is circular, which can ensure the rotation of the centrifugal blade 220 in the mounting member 400 while obtaining a larger area, thereby increasing the installation area of the centrifugal blade 220. The base plate 210 is provided in the form of a conical side wall, which can increase the actual surface area on the same projection area, thereby increasing the installation area of the centrifugal blade 220, and further increasing the contact area between the centrifugal blade 220 and the airflow, and increasing the airflow guiding effect.

[0106] The technical effect of the above embodiment is that the assembly hole 211 in the center of the base plate 210 provides a stable mounting point, so that the end of the corresponding output shaft 310 extends out of the assembly hole 211 and precisely matches the base plate 210, thereby realizing uninterrupted rotation of the fan blade assembly. In addition, the presence of the installation bevel 212 makes the entire installation process more smooth, not only improving the positioning accuracy of the assembly, but also reducing the vibration that may be caused by unstable center of gravity during operation.

[0107] In an embodiment, as shown in Figure 8 and Figure 10 The dust removal equipment 10 further comprises a mounting member 400 fixed in the mounting cavity 101b for covering and fixing the wind pressure motor 300. The mounting member 400 is provided with an opening 401 on the side of the output shaft 310 of the wind pressure motor 300 close to the dust suction port 102, and the end of the output shaft 310 extends out of the opening 401, so that the base plate 210 is sleeved on the end of the output shaft 310.

[0108] In some embodiments, the mounting member 400 specifically comprises a mounting seat 410, a connecting element 420, and a mounting cylinder 430. The mounting seat 410 surrounds the wind pressure motor 300, the connecting element 420 is curved in the axis direction of the second shell 120, and the mounting cylinder 430 is attached to the second shell 120 to surround and mount the entire wind pressure motor 300.

[0109] The mounting seat 410 is a cylindrical cavity wall structure without a top cover, that is, the mounting seat 410 is provided with an opening 401 on the side of the output shaft 310 of the wind pressure motor 300 close to the dust suction port 102, and the mounting seat 410 and the second shell 120 are coaxially arranged.

[0110] The wind pressure motor 300 is mounted in the mounting seat 410, which ensures that the motor is stable and well protected. This structural design effectively resists damage to the motor from the external environment, while providing good support.

[0111] In some embodiments, the connecting element 420 is a web structure, and the mounting cylinder 430 is a circular ring column shell structure. The connecting element 420 is connected to one end of the inner wall of the mounting cylinder 430 and the other end of the mounting seat 410 in a direction perpendicular to the axis of the second shell 120, so as to realize the mounting of the wind pressure motor 300 on the second shell 120.

[0112] Further, the connecting element 420 is arranged in a curved manner in the axis direction of the second shell 120, that is, the connecting element 420 is in a circular arc shape, and the number of the connecting element 420 is five. The five connecting elements 420 are arranged around the mounting seat 410. The circular arc arrangement of the connecting element 420 can guide the gas while increasing the contact area, so as to reduce the resistance to the gas flow.

[0113] The curved structure of the connecting element 420 helps to guide the gas flow to a more smooth path, reducing the resistance of the gas flow. This optimized design ensures that the gas flow after passing through the wind pressure motor 300 is more efficient, reduces the risk of gas flow convergence and vortex generation, and improves the utilization rate of wind pressure.

[0114] In some embodiments, the connecting element 420 can be a flat plate structure or a block structure with a large cross-sectional area, and the two ends thereof are connected to the mounting cylinder 430 and the mounting seat 410, respectively, so as to realize the fixation of the mounting seat 410 in the mounting cylinder 430. In other embodiments, the number of the connecting element 420 can also be two, three, or six or more. The plurality of connecting elements 420 are arranged around the mounting seat 410, or the number of the connecting element 223 is directly set to one while ensuring the mounting strength of the mounting seat 410.

[0115] In order to match the shape of the wind pressure motor 300 and the mounting cavity 101b, the outer contours of the mounting cavity 101b, the mounting seat 410, and the mounting cylinder 430 are arranged in a cylindrical manner, which can optimize the space and keep the distance between the mounting cylinder 430 and the inner wall of the second shell 120 consistent, avoiding uneven wind pressure and causing resistance. In other embodiments, the wind pressure motor 300 can also be fixedly mounted on the second shell 120 in other structures, so as to realize the fixed mounting of the wind pressure motor 300.

[0116] In some embodiments, in order to simplify the structure of the shell 100 and reduce the production difficulty of the shell 100, the mounting part 400 can be an independent component. The wind pressure motor 300 is mounted on the mounting part 400, and then the mounting part 400 and the wind pressure motor 300 are mounted in the shell 100 together. However, in other embodiments, the mounting part 400 can also be integrally formed with the shell 100, which is not limited here.

[0117] In some embodiments, as shown in FIG. 6, the mounting part 400 can be a mounting seat 410 and a mounting cylinder 430 connected to the mounting seat 410. Figure 10As shown, the mounting member 400 can have a receiving cavity 402 for accommodating at least part of the air pressure motor 300 from the opening 401, i.e. the opening 401 of the mounting member 400 and the air pressure motor 300 on the side close to the suction port 102 in the airflow direction are connected to each other, and the mounting member 400 is arranged around the inner wall of the housing 100 to separate the mounting space in the cavity 101 where the air pressure motor 300 can be mounted.

[0118] In an embodiment, the opening 401 of the mounting member 400 and the air pressure motor 300 on the side close to the suction port 102 in the airflow direction are connected areas, which are both hollow cylindrical structures, so that the mounting member 400 and the air pressure motor 300 can be connected in close contact.

[0119] In an embodiment, the opening 401 of the mounting member 400 and the air pressure motor 300 on the side close to the suction port 102 in the airflow direction are connected areas, which are both hollow cylindrical structures, so that the mounting member 400 and the air pressure motor 300 can be connected in close contact.

[0120] The technical effect of the above embodiment is that by closely combining the air pressure motor and the centrifugal blades, the structure is simplified and the assembly efficiency is improved. At the same time, the strong air pressure generation makes the airflow more stable, ensuring the maximization of the cleaning effect. During use, the user can complete the cleaning of various surfaces in a short time through the strong air pressure, thereby improving the use satisfaction.

[0121] In an embodiment, as shown in FIGS. 1-4, the mounting member 400 is a cylindrical structure, and an airflow passage is formed in the inner wall of the cylinder of the mounting member 400, and a dust collecting piece 403 is arranged on the inner wall of the cylinder, which is used to adsorb the dust particles carried by the airflow flowing in the airflow passage. Figure 8 Figure 10 As shown, the mounting member 400 is a cylindrical structure, and an airflow passage is formed in the inner wall of the cylinder of the mounting member 400, and a dust collecting piece 403 is arranged on the inner wall of the cylinder, which is used to adsorb the dust particles carried by the airflow flowing in the airflow passage.

[0122] Specifically, the mounting member 400 is a cylindrical structure, designed as a closed cylinder, which can effectively surround the fan blade assembly, maintain the stability of the assembly, and provide an airflow passage for the airflow. An airflow passage is formed in the inner wall of the cylinder of the mounting member 400, which ensures that the airflow can pass through efficiently, promotes the airflow processing performance of the fan blade assembly 200, and improves the working efficiency of the entire dust removal equipment.

[0123] ​The dust collecting piece 403 is arranged on the inner wall of the cylinder body, and the dust collecting piece 403 is used for adsorbing dust particles carried by the airflow in the airflow channel. The surface of the dust collecting piece 403 can be designed with special materials or coatings to improve the adsorption capacity of the dust collecting piece 403 to the dust particles, so that the dust can be effectively captured when the airflow passes through, and the cleaning degree of the airflow is improved.

[0124] The technical effect of the above embodiment is that the mounting part 400 of the cylinder body structure can perfectly surround the fan blade assembly to form a closed space to guide the airflow. The design of the airflow channel ensures that the airflow flows along the predetermined path, promotes the concentration and acceleration of the airflow, and the setting of the dust collecting piece 403 greatly improves the collection efficiency of the dust particles, which significantly improves the dust removal effect, and the user can obtain fresher air.

[0125] The utility model also provides a kind of portable dust removal equipment 20, please refer to Figure 11 And Figure 12 In addition to the shell 100 for dust removal equipment, fan blade assembly 200, wind pressure motor 300 and mounting part 400 described above, the portable dust removal equipment 20 further includes cleaning accessory 910, filter assembly 920, power supply assembly 930, cover body assembly 940 and driving source 950. The cleaning accessory 910 is arranged in the cavity 101 and partially extends out of the dust suction port 102, and the cleaning accessory 910 is cleaned by moving on the surface to be cleaned. The filter assembly 920 is arranged in the cavity 101, and the filter assembly 920 is used for filtering the airflow carrying dust particles sucked into the cavity 101 from the dust suction port 102. The driving source 950 is arranged in the cavity 101, and the driving source 950 is used for driving the cleaning accessory 910 to move. The power supply assembly 930 is arranged in the cavity 101, and the power supply assembly 930 is used for supplying power to the wind pressure motor 300 and the driving source 950. The cover body assembly 940 is arranged in the cavity 101, and the cover body assembly 940 is used for storing and protecting the cleaning accessory 910.

[0126] In some embodiments, as Figure 12As shown, the portable dust removal device 20 of the present application realizes miniaturization of the shell 100 and orderly arrangement of the internal components through its unique structural design. For example, from the dust suction port 102 to the air outlet 103 of the cavity 101, the cover assembly 940, the cleaning accessory 910, the filter assembly 920, the driving source 950, the mounting piece 400, the air pressure motor 300, the fan blade assembly 200, the power supply assembly 930 and other components (such as a touch panel, a wind deflector, etc.) of the portable dust removal device 20 can be combined together in sequence, thereby forming a complete portable dust removal device 20. Among them, the cover assembly 940, the cleaning accessory 910, the filter assembly 920, the driving source 950, the mounting piece 400, the air pressure motor 300, the fan blade assembly 200 and the power supply assembly 930 are connected in sequence in the cavity 101, forming a compact and efficient cleaning system, so that powerful cleaning performance can be achieved without occupying too much space.

[0127] In some embodiments, each component in the portable dust removal device 20 is detachably connected to the shell 100 or other components, so that the assembly and subsequent disassembly of each component are more convenient and efficient.

[0128] In some embodiments, one end of the cleaning accessory 910 is a mounting end for mounting on the output shaft of the driving source 950 to realize power transmission between the cleaning accessory 910 and the driving source 950, and the other end is a cleaning end for cleaning the surface to be cleaned under the drive of the driving source 950.

[0129] Optionally, the surface to be cleaned can be a flat surface or a concave-convex surface, and can also be a hard surface or a soft surface, etc., and for different types of surfaces to be cleaned, the user can also replace the corresponding matching cleaning accessory 910 for cleaning to effectively clean the surface to be cleaned. Therefore, the cleaning accessory 910 is designed to be exquisite and can flexibly meet the cleaning needs of different surfaces and environments.

[0130] In an embodiment, in order to ensure the strength of the mounting end of the cleaning accessory 910 and prevent the mounting end and the output shaft from being deformed or damaged under stress, the cleaning accessory 910 can be partially arranged in a manner that the mounting end extends out of the cavity 101 from the dust suction port 102, but in other embodiments, the mounting end can also be arranged without extending into the dust suction port 102, that is, the cleaning accessory 910 is arranged in a manner that the mounting end and the output shaft are fixedly assembled with the mounting end extending out of the dust suction port 102.

[0131] In some embodiments, the driving source 950 is installed in the cavity 101 and arranged behind the cleaning accessory 910, responsible for driving the movement of the cleaning accessory 910 to realize the cleaning capability of the device. Among them, the driving source 950 is a detachable driving motor, which includes a rotating motor, a vibration motor, or an ultrasonic wave generating device, etc.

[0132] For example, the driving source 950 can be a rotating motor, which is used to drive the cleaning accessory in a rotating manner to clean the surface to be cleaned. Among them, the rotating motor can be used in the scene of cleaning oil stains or fingerprint marks on the surface, which can provide stable rotating power for the cleaning accessory 910, so that the cleaning accessory 910 effectively contacts the cleaning surface, thereby efficiently removing the attached stains without damaging the surface.

[0133] For another example, the driving source 950 can be a vibration motor, which is used to drive the cleaning accessory in a vibrating manner to clean the surface to be cleaned. Among them, the vibration motor can be used in the scene of cleaning dust attachments on the surface, which can effectively loosen and shake off the dust attached to the surface, thereby enhancing the cleaning effect, especially when dealing with fabrics or uneven surfaces.

[0134] And for some specific scenes, such as stubborn stains or deep cleaning of fine particles, the driving source 950 can be an ultrasonic wave generating device, so as to realize the deep cleaning effect of the cleaning surface through the high-frequency sound waves generated by the ultrasonic wave generating device.

[0135] Among them, the use of rotating motor, vibration motor and ultrasonic wave generating device makes the driving source 950 can provide the optimal solution under different cleaning requirements, so as to meet the cleaning requirements of family, industry and special environment.

[0136] In some embodiments, the fan blade assembly 200 is located in the cavity 101 and arranged behind the power supply assembly 930, which is used to generate wind pressure in the cavity 101, which functions to suck the garbage on the surface to be cleaned into the cavity 101 through the dust suction port, which effectively implements in the mini space and enhances the dust suction capability of the device.

[0137] Among them, the fan blade assembly 200 can include a motor and a fan blade, the motor is fixedly installed on the shell 100 and accommodated in the cavity 101, and the fan blade is sleeved on the power shaft of the motor, so that the motor can drive the fan blade to rotate, thereby generating wind pressure in the cavity 101 and causing gas flow in the cavity 101, so as to suck the garbage on the surface to be cleaned into the cavity 101 through the dust suction port 102.

[0138] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0139] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0140] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0141] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0142] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0143] In some embodiments, the filtering assembly 920 is arranged in sequence in the cavity and between the fan blade assembly 200 and the driving source 950, which functions to effectively filter the garbage entering the cavity 101, ensure the cleaning effect, prevent the garbage from flowing back to the environment, and improve the safety of user use.

[0144] The automatic dust removal instrument has an intelligent opening and closing function, can independently clean a preset fixed area according to a preset working mode, and can be remotely controlled by a user or automatically turned on or off according to environmental conditions during work, thereby improving the use convenience of the user. Meanwhile, the dust removal instrument can be connected with other intelligent devices of the user to realize remote control and timing cleaning functions.

[0145] Since the portable dust removal equipment 20 of the embodiment of the application comprises the above-mentioned fan blade assembly 200 for the dust removal equipment, the portable dust removal equipment 20 of the embodiment of the application has the beneficial effects of the above-mentioned fan blade assembly 200, which will not be described here. The embodiment of the application is provided with a cleaning accessory 910, which is arranged through the fixing part of the mounting assembly, and the fan blade assembly 200 and the filter sponge are arranged in a fixed manner in the form of an annular sleeve on the fixing part, which can better adapt to the structure of the cavity 101 and has better shielding effect.

[0146] The technical effect of the above-mentioned scheme is that the device not only avoids the clumsiness and inconvenience of traditional cleaning tools, but also provides a portable, flexible and efficient solution, meeting the expectations of modern users for portable cleaning equipment. Users can easily carry the device to every corner of daily life and clean it at any time, improving the quality of life. Specifically, in one aspect, by means different from the prior art, the cleaning accessory, the driving source, the fan blade assembly and the filter module are accommodated in the cavity through a hand-held mini shell, greatly reducing the physical volume of the dust removal equipment, realizing miniaturization of the dust removal equipment, and thus improving the portability and operability of the dust removal equipment. On the other hand, the scheme first drives the cleaning accessory by the driving source to clean the surface to be cleaned close to the dust suction port, then generates wind pressure in the cavity by the fan blade assembly to suck the garbage on the surface to be cleaned into the cavity through the dust suction port, and finally filters the sucked garbage by the filter module in the cavity, thereby realizing cleaning of dirt such as dust and garbage, effectively improving the cleanliness of dirt in dead corners and gaps, and thus achieving powerful cleaning.

[0147] The technical features of the above embodiments can be combined in any way. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the application. In addition, those skilled in the art will easily think of other embodiments of the application after considering the specification and practicing the application. The application is intended to cover any variations, uses or adaptations of the application that follow the general principles of the application and include common knowledge or conventional technical means in the art that are not claimed by the application. The specification and examples are only considered as exemplary, and the true scope and spirit of the application are indicated by the claims.

[0148] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific manner, but should not be construed as limiting the scope of the patent of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A fan blade assembly for a dust removal device, characterized in that, The dust removal device comprises a hand-held mini shell, a cavity in the shell, and a dust suction port connected to the outside at one end of the cavity; the fan blade assembly comprises: a base plate accommodated in the cavity; a centrifugal blade fixed to one side of the base plate facing the dust suction port; wherein the centrifugal blade comprises a first side close to the center of the base plate and a second side close to the edge of the base plate, the shape of the centrifugal blade from the first side to the second side presents an arc shape, and the height of the centrifugal blade from the first side to the second side gradually decreases, so as to increase the contact area with the suction airflow when the centrifugal blade cuts the wind.

2. The fan blade assembly for a dusting apparatus of claim 1, wherein, The centrifugal blade comprises first type blades and second type blades; wherein the first type blades and the second type blades are sequentially and spacedly arranged on the base plate in a circumferential array, and in the direction perpendicular to the axis of the base plate, the projection length of the first type blades on the base plate is greater than that of the second type blades.

3. The fan blade assembly for a dust extraction apparatus according to claim 2, wherein, The distance from the first side of the first type blades to the axis of the base plate is less than that of the second type blades; and the end faces of the first side of the first type blades and the first side of the second type blades are both arc-shaped and are the same arc of a circle.

4. The fan blade assembly for a dust extraction apparatus according to claim 3, wherein, In the axis direction of the base plate, the first sides of the first type blades and the second type blades are both inclinedly arranged with a preset angle outward of the center of the base plate, and the second sides of the first type blades and the second type blades are both inclinedly arranged with a preset angle outward of the edge of the base plate, so as to increase the contact area of the centrifugal blade with the airflow without changing the projection area of the base plate in the axis direction.

5. The fan blade assembly for a dusting apparatus of claim 1, wherein, In the axis direction of the base plate, at least two reinforcing ribs are arranged on the side of the base plate away from the centrifugal blade, and the reinforcing ribs are used to increase the strength of the base plate.

6. The fan blade assembly for a dust extraction apparatus according to any one of claims 1 to 5, wherein, The dust removal device further comprises: a wind pressure motor fixed in the cavity, and an output shaft of the wind pressure motor is used to sleeve the base plate; wherein the output shaft is used to drive the base plate to rotate, so as to synchronously drive the centrifugal blade to rotate, thereby generating wind pressure in the cavity, and the wind pressure is used to suck the airflow carrying dust particles from the dust suction port into the cavity.

7. The fan blade assembly for a dust extraction apparatus according to claim 6, wherein, A mounting hole is arranged in the center of the cone of the base plate, and a mounting bevel is arranged on the side of the mounting hole close to the wind pressure motor; wherein the mounting hole is used to extend the end of the output shaft, so that the base plate is sleeved on the end of the output shaft, and the mounting bevel is used to enlarge the mounting area of the base plate when sleeved on the output shaft.

8. The fan blade assembly for a dust extraction apparatus according to claim 7, wherein, The shell comprises a detachable first shell and a second shell, and the first shell and the second shell jointly enclose the cavity; wherein the part of the cavity in the first shell is divided into a dust cavity, and the part of the cavity in the second shell is divided into a mounting cavity; the dust suction port is arranged at one end of the dust cavity away from the mounting cavity; and the fan blade assembly is fixed in the mounting cavity.

9. The fan blade assembly for a dust extraction apparatus according to claim 8, wherein, The dust removal device further comprises: The mounting member is a cylinder structure and is fixed in the mounting cavity for covering and fixing the wind pressure motor. The mounting member is provided with an opening on the side close to the dust suction port of the output shaft of the wind pressure motor, and the output shaft is extended through the opening so that the bottom disc is sleeved on the end of the output shaft.

10. A portable dust extraction apparatus characterised in that, The portable dust removal equipment comprises the fan blade assembly for dust removal equipment according to any one of claims 1-9, and the portable dust removal equipment is used for increasing the contact area of the centrifugal blade with the suction airflow when the airflow carrying dust particles is sucked into the cavity from the dust suction port.

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