Laundry treating apparatus

Abstract

The utility model discloses a clothes processing device which is provided with a clothes processing cavity, an air duct cavity and an impeller cavity, the clothes processing cavity is provided with a first air inlet and a first air outlet, the air duct cavity is provided with a second air inlet and a second air outlet, the second air inlet is communicated with the first air outlet, and the impeller cavity is communicated with the second air outlet and the first air inlet. Wherein an impeller is arranged in the impeller cavity, the impeller comprises a plurality of blades, and the front edge of at least one blade is provided with a cutting edge. According to the clothes processing device, impact of airflow on the front edges of the blades can be buffered, noise is reduced, meanwhile, the blades can enable pressure fluctuation phases to be staggered, noise reduction is achieved, and therefore noise generated when the clothes processing device works is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of clothing processing, and more specifically, to a clothing processing device. Background Art

[0002] In the related art, a fan is provided in a clothing processing device, and the fan is used to drive air flow to dry clothing and perform other treatments. However, the fan in the related art generates relatively large noise, which causes relatively large noise when the clothing processing device is working, and needs to be further optimized. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide a clothes processing device, which produces less noise when working.

[0004] According to the clothing processing device of the embodiment of the utility model, the clothing processing device has a clothing processing chamber, an air duct chamber and an impeller chamber, the clothing processing chamber has a first air inlet and a first air outlet, the air duct chamber has a second air inlet and a second air outlet, the second air inlet is connected to the first air outlet, and the impeller chamber is connected to the second air outlet and the first air inlet; wherein an impeller is provided in the impeller chamber, the impeller includes a plurality of blades, and the leading edge of at least one of the blades has a cutting edge.

[0005] According to the embodiment of the utility model, the clothing treatment device includes an impeller, and the leading edge of at least one of the multiple blades of the impeller has a cutting edge, and the cutting edge is not perpendicular to the airflow flowing in the air inlet chamber, thereby buffering the impact of the airflow on the leading edge of the blade and reducing the generation of noise. At the same time, the cutting edge and the rest of the leading edge have different angles with the radially flowing airflow, so that the pressure fluctuation phase can be staggered to achieve noise reduction. Therefore, the present application can reduce the noise generated by the impeller 10 in the working state, thereby reducing the noise generated by the clothing treatment device when it is working.

[0006] In addition, the clothes processing device according to the above embodiment of the utility model may also have the following additional technical features:

[0007] According to some embodiments of the present invention, the impeller has an air inlet side at one axial end and an air outlet side in a circumferential direction, and the cutting edge is located at the air inlet side.

[0008] According to some embodiments of the utility model, the impeller has an air inlet cavity arranged opposite to the inlet of the impeller cavity, and the impeller includes a plurality of blades arranged at intervals along the circumference of the air inlet cavity, and the edge of the blade facing the air inlet cavity is the leading edge;

[0009] In the radial direction of the air inlet cavity, the cutting edge extends from outside the air inlet cavity to inside the air inlet cavity in a direction away from the inlet of the impeller cavity.

[0010] According to some embodiments of the present invention, the blade further has a first edge, a second edge and a trailing edge, the first edge and the second edge are spaced apart in the axial direction of the impeller, the first edge is closer to the inlet of the impeller cavity than the second edge, and the trailing edge is located on a side of the blade away from the air inlet cavity;

[0011] The leading edge of at least one of the blades includes a first extension portion and a second extension portion, the first edge and the second extension portion are connected by the first extension portion, the first extension portion forms the cutting edge, and along the direction from the trailing edge to the second extension portion, the first extension portion gradually moves away from the inlet of the impeller chamber.

[0012] According to some embodiments of the present invention, the angle between the first extension portion and the extension line of the first edge is 15° to 60°; and / or,

[0013] The ratio of a size of a projection of the first edge in an extending direction of the first edge to a size of the first extending portion is 1:1 to 3:1.

[0014] According to some embodiments of the present invention, the impeller also includes a wheel disc and an end plate, the wheel disc and the end plate are spaced apart along the axial direction of the impeller, a plurality of blades are connected between the wheel disc and the end plate, a middle portion of the end plate has a vent, the vent is connected between the inlet of the impeller cavity and the air inlet cavity, the first edge is connected to the end plate, and the second edge is connected to the wheel disc.

[0015] According to some embodiments of the present invention, along the direction from the trailing edge to the leading edge, the size of the end plate is smaller than the size of the second edge;

[0016] And / or, the wheel disc and / or the end plate are metal parts;

[0017] And / or, the blades are riveted to the wheel disc and the end plate.

[0018] According to some embodiments of the present invention, the blade is a metal part.

[0019] According to some embodiments of the present invention, the thickness of the blade is 0.2 mm to 0.8 mm.

[0020] According to some embodiments of the present invention, the ratio of the axial dimension of the impeller to the diameter of the impeller is 0.2 to 0.4; and / or,

[0021] The axial dimension of the impeller is 30-40 mm, and the diameter of the impeller is 120-140 mm;

[0022] And / or, the clothing processing device includes: a clothing processing component, the clothing processing component defines the clothing processing chamber; an air duct component, the air duct component defines the air duct chamber; a volute, the volute is connected between the clothing processing component and the air duct component and is suitable for defining the impeller chamber, and the volute is a plastic part.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 is a partial structural schematic diagram of a clothes processing device according to an embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of an impeller according to an embodiment of the utility model;

[0027] Figure 3 yes Figure 2 A partial enlarged view of part A;

[0028] Figure 4 It is a schematic diagram of the structure of the blade according to the embodiment of the utility model;

[0029] Figure 5 is a front view of a blade according to an embodiment of the utility model;

[0030] Figure 6 It is a front view of the impeller according to the embodiment of the utility model;

[0031] Figure 7 is a side view of an impeller according to an embodiment of the utility model;

[0032] Figure 8 yes Figure 6 A partial enlarged view of part B.

[0033] Reference numerals:

[0034] Clothes treating device 100;

[0035] Impeller 10;

[0036] Air inlet cavity 101; blade 102; leading edge 1021; first edge 1022;

[0037] Second edge 1023; trailing edge 1024; first extension 1025; second extension 1026;

[0038] Wheel 103; end plate 104; vent 1041;

[0039] Air duct assembly 20; air duct cavity 202; second air inlet 201;

[0040] Volute 30; impeller chamber 301. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, "first feature" and "second feature" may include one or more such features, "plurality" means two or more, the first feature "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them, the first feature "above", "above" and "above" the second feature may include the first feature being directly above and diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0044] The laundry treating apparatus 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] Reference Figure 1-Figure 8As shown, the clothes processing device 100 according to the embodiment of the utility model has a clothes processing chamber, an air duct chamber 202 and an impeller chamber 301. The clothes processing device 100 in the embodiment of the utility model can be a clothes dryer, a clothes drying machine, a clothes sterilizing machine, a clothes care machine, or a washer-dryer, etc. The clothes processing device 100 can be an air circulation type clothes dryer or a direct exhaust type clothes dryer.

[0046] The clothing treatment chamber has a first air inlet and a first air outlet, the air duct chamber 202 has a second air inlet 201 and a second air outlet, the second air inlet 201 is connected to the first air outlet, and the impeller chamber 301 is connected to the second air outlet and the first air inlet. The clothing treatment chamber is used to accommodate clothing, and the clothing treatment chamber can be used to wash, dry, sterilize, and enhance fragrance for clothing. Figure 1 As shown by the straight arrow in , the airflow discharged from the impeller chamber 301 enters the clothing processing chamber through the first air inlet, is discharged from the first air outlet, then enters the air duct chamber 202 from the second air inlet 201, then leaves the air duct chamber 202 from the second air outlet, and finally returns to the impeller chamber 301, forming a cycle. An impeller 10 is provided in the impeller chamber 301, and the impeller 10 rotates under the drive of the motor to drive the airflow and provide power for the airflow.

[0047] In some embodiments, one or more of an airflow heating component, an evaporator, a condenser, etc. may be provided in the air duct cavity 202, so that the water vapor in the airflow condenses into water droplets and the airflow temperature increases; a sterilization component or an aromatherapy component, etc. may also be provided in the air duct cavity 202.

[0048] An impeller 10 is disposed in the impeller cavity 301. The impeller 10 includes a plurality of blades 102. The leading edge 1021 of at least one blade 102 has a cutting edge. The impeller 10 has an air inlet cavity 101 disposed opposite to the inlet of the impeller cavity 301. The impeller 10 includes a plurality of blades 102 arranged at intervals along the circumference of the air inlet cavity 101. The edge of the blade 102 facing the air inlet cavity 101 is the leading edge 1021.

[0049] The axial dimension of the cutting edge may be equal to the axial dimension of the leading edge 1021 of the blade 102, or may be smaller than the axial dimension of the leading edge 1021 of the blade 102. The cutting edge may be located at one end of the leading edge 1021 close to the inlet of the impeller chamber 301, or may be located at the other end of the leading edge 1021 away from the inlet of the impeller chamber 301. The cutting edge may include one or more edge sections, and the extension directions of the multiple edge sections may be partially different or all different. The cutting edge may extend along a straight line or along a curve, and the center of the curve may be located on one side of the blade or on the side away from the blade.

[0050] It should be noted that the airflow entering from the inlet of the impeller chamber 301 will flow to the air inlet chamber 101 (such as Figure 2 As shown in FIG. 1 , the airflow then flows along the radial direction of the impeller 10. When the airflow flows, the airflow will impact the leading edge 1021 of the blade 102. The leading edge of the blade in the related art extends along the axial direction of the impeller, and the entire leading edge is perpendicular to the radially flowing airflow. When the airflow impacts the leading edge, the impact force is large, and the pressure fluctuations are in phase, resulting in a large noise when the impeller is working.

[0051] According to the embodiment of the utility model, the clothing treatment device 100 includes an impeller 10, and the leading edge 1021 of at least one of the multiple blades 102 of the impeller 10 has a cutting edge, and the cutting edge is not perpendicular to the airflow flowing in the air inlet chamber 101, thereby buffering the impact of the airflow on the leading edge 1021 of the blade 102 and reducing the generation of noise. At the same time, the cutting edge and the rest of the leading edge 1021 have different angles with the radially flowing airflow, so that the pressure fluctuation phase can be staggered to achieve noise reduction. Therefore, the present application can reduce the noise generated by the impeller 10 in the working state, thereby reducing the noise generated by the clothing treatment device 100 when it is working.

[0052] According to some embodiments of the present invention, the impeller 10 has an air inlet side at one axial end and an air outlet side in the circumferential direction, and the cutting edge is located on the air inlet side. The impeller 10 has a vent 1041, and the axial end of the impeller 10 having the vent 1041 is the air inlet side. The airflow entering from the inlet of the impeller cavity 301 will flow to the air inlet cavity 101 (such as Figure 2 As shown in FIG. 1 ), the air flows radially along the impeller 10 and flows out from the circumferential air outlet side. The cutting edge is located on the air inlet side, that is, the airflow with a faster flow rate flowing into the air inlet cavity 101 from the air inlet side will directly impact the cutting edge. Since the angle between the cutting edge and the airflow direction is less than 90 degrees, the cutting edge can buffer the impact of the airflow on the blade 102 and reduce the generation of noise.

[0053] According to some embodiments of the utility model, in the radial direction of the air inlet cavity 101, the cutting edge extends from the outside of the air inlet cavity 101 to the inside of the air inlet cavity 101 in a direction away from the inlet of the impeller cavity 301. In other words, part of the leading edge 1021 is not perpendicular to the radially flowing airflow, thereby buffering the impact of the airflow on the leading edge 1021, reducing the number and size of the generated vortices, and staggering the phases of the pressure fluctuations, so that part of the pressure fluctuations can offset each other, thereby achieving the effect of noise reduction, and the structure is simple and easy to process.

[0054] Among the multiple blades 102 of the impeller 10 , only the leading edges 1021 of some of the blades 102 may be provided with cutting edges; or, the leading edges 1021 of all the blades 102 of the impeller 10 may be provided with cutting edges.

[0055] Only a portion of the leading edge 1021 is formed as a cutting edge, so that the noise reduction effect can be achieved and at the same time the size of the blade 102 will not be too small to affect the working efficiency of the impeller 10 .

[0056] According to some embodiments of the present invention, reference can be made to Figures 2 to 5 As shown, the blade 102 also has a first edge 1022, a second edge 1023 and a trailing edge 1024, the first edge 1022 and the second edge 1023 are spaced apart in the axial direction of the impeller 10, the first edge 1022 is closer to the inlet of the impeller chamber 301 than the second edge 1023, and the trailing edge 1024 is located on the side of the blade 102 away from the air inlet chamber 101; the leading edge 1021 of at least one blade 102 includes a first extension portion 1025 and a second extension portion 1026, the first edge 1022 and the second extension portion 1026 are connected by the first extension portion 1025, the first extension portion 1025 forms a cutting edge, and along the direction from the trailing edge 1024 to the second extension portion 1026, the first extension portion 1025 gradually moves away from the inlet of the impeller chamber 301. That is to say, a portion of the leading edge 1021 of the blade 102 extends from outside the air inlet cavity 101 to inside the air inlet cavity 101 in a direction away from the inlet of the impeller cavity 301, thereby buffering the impact of the airflow on the leading edge 1021 of the blade 102 and staggering the pressure fluctuation phase, thereby achieving noise reduction.

[0057] The airflow entering from the inlet of the impeller chamber 301 will first impact the first extension portion 1025. Since the first extension portion 1025 gradually moves away from the inlet of the impeller chamber 301 along the direction from the trailing edge 1024 to the second extension portion 1026, the impact of the airflow can be buffered and the number and size of vortices generated by the impact of the airflow can be reduced.

[0058] Specifically, the second extension portion 1026 may be parallel to the trailing edge 1024 or may have a certain angle with the trailing edge 1024. Along the direction from the trailing edge 1024 to the second extension portion 1026, the distance between the first extension portion 1025 and the inlet of the impeller chamber 301 may increase linearly, or the distance between the first extension portion 1025 and the inlet of the impeller chamber 301 may increase nonlinearly, for example, in a parabolic increase.

[0059] In some embodiments, the leading edge 1021 of at least one blade 102 may include a third extension portion and a fourth extension portion, the second edge 1023 and the third extension portion are connected through the fourth extension portion, and along the direction from the trailing edge 1024 to the third extension portion, the fourth extension portion gradually moves away from the inlet of the impeller chamber 301. That is, a portion of the leading edge 1021 of the blade 102 extends from the outside of the air inlet chamber 101 to the inside of the air inlet chamber 101 in a direction away from the inlet of the impeller chamber 301, thereby buffering the impact of the airflow on the leading edge 1021 of the blade 102, staggering the pressure fluctuation phase, and thus achieving noise reduction.

[0060] According to some embodiments of the present invention, reference can be made to Figure 5 As shown, the angle a between the first extension portion 1025 and the extension line of the first edge 1022 is 15° to 60°. For example, the angle a between the first extension portion 1025 and the first edge 1022 can be 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, or any value between any two values. Specifically, the angle between the first extension portion 1025 and the extension line of the first edge 1022 can be optimized according to the actual operating state of the impeller 10, the size of the impeller 10, the rotation speed, etc., so as to achieve the best noise reduction effect.

[0061] According to some embodiments of the present invention, the ratio of the size of the projection of the first edge 1022 in the extension direction of the first edge 1022 to the size of the first extension portion 1025 is 1:1 to 3:1. Figure 5 As shown, for example, the size of the first edge 1022 can be set to L1, the size of the first extension portion 1025 along the extension direction of the first edge 1022 can be set to L2, and the ratio of L1 to L2 can be 1, 1.2, 1.4, 1.6, 1.8, 2, 2.2, 2.4, 2.6, 2.8, 3 or any value between any two of them. When the ratio of L1 to L2 is within this range, the size of the first edge 1022 will not be too small to affect the installation of the blade 102, and the size of the first edge 1022 will not be too large to make the noise reduction effect poor.

[0062] In some embodiments, the angle a between the first extension portion 1025 and the extension line of the first edge 1022 is 15° to 60°, and along the extension direction of the first edge 1022, the ratio of the dimension L1 of the first edge 1022 to the dimension L2 of the first extension portion 1025 is 2:1 to 3:1. In this way, the area defined by the extension line of the first edge 1022, the extension line of the second extension portion 1026 and the first extension portion 1025 will not be too large, that is, the size of the blade 102 will not be reduced too much to significantly reduce the working efficiency of the impeller 10, and at the same time, a good noise reduction effect can be achieved.

[0063] According to some embodiments of the present invention, reference can be made to Figure 2 and Figure 3As shown, the impeller 10 further includes a wheel disc 103 and an end plate 104, the wheel disc 103 and the end plate 104 are spaced apart along the axial direction of the impeller 10, a plurality of blades 102 are connected between the wheel disc 103 and the end plate 104, a vent 1041 is provided in the middle of the end plate 104, the vent 1041 is connected between the inlet of the impeller chamber 301 and the air inlet chamber 101, a first edge 1022 is connected to the end plate 104, and a second edge 1023 is connected to the wheel disc 103. That is, the airflow flowing into the impeller chamber 301 from the inlet of the impeller chamber 301 will enter the air inlet chamber 101 between the wheel disc 103 and the end plate 104 through the vent 1041 on the end plate 104, and then flow from the leading edge 1021 of the blade 102 to the trailing edge 1024 of the blade 102, that is, flow along the radial direction of the impeller 10 and leave the air inlet chamber 101.

[0064] The blades 102 are installed between the end plate 104 and the wheel disc 103, so that the blades 102 are not easily deformed and shaken, and the working efficiency is high, and the end plate 104 can guide the flow of airflow and reduce the generation of turbulence and eddy currents. The wheel disc 103 is used to be connected to the output shaft of the motor so that the output shaft of the motor can drive the impeller 10 to rotate.

[0065] In other embodiments, the end plate 104 may also be connected to a portion of the trailing edge 1024 of the blade 102 close to the first edge 1022 .

[0066] In some embodiments, the number of blades 102 is 36 to 40. For example, the number of blades 102 is 36, 38 or 40, so that the impeller 10 has better working efficiency.

[0067] According to some embodiments of the present invention, reference can be made to Figure 2 As shown, along the direction from the trailing edge 1024 to the leading edge 1021, the size of the end plate 104 is smaller than the size of the second edge 1023. In other embodiments, the size of the end plate 104 may also be equal to the size of the second edge 1023. Among them, in the embodiment where the second edge 1023 is connected to the end plate 104, the size of the end plate 104 is smaller than the size of the second edge 1023, so that the size of the vent 1041 of the end plate 104 can be as large as possible, which is conducive to efficient air intake, and at the same time, the weight of the end plate 104 is low, and the cost is low.

[0068] According to some embodiments of the present invention, the wheel disc 103 and the end plate 104 are metal parts; or, the wheel disc 103 is a metal part; or, the end plate 104 is a metal part. In this way, the wheel disc 103 and the end plate 104 have high tensile strength, and the impeller 10 has good bending resistance when the impeller 10 rotates at a high speed, which is conducive to reducing the size of the impeller 10 while preventing the working efficiency of the impeller 10 from being greatly reduced.

[0069] According to some embodiments of the utility model, the blade 102 is riveted to the wheel disc 103 and the end plate 104. In this way, the connection between the blade 102 and the wheel disc 103 and the end plate 104 is more convenient, and the blade 102 and the wheel disc 103 and the end plate 104 are not easy to break and separate. Specifically, for example, the wheel disc 103 and the end plate 104 have riveting holes, and the first edge 1022 and the second edge 1023 of the blade 102 have riveting parts, which are inserted into the riveting holes and riveted to the riveting holes. In other embodiments, the blade 102 and the wheel disc 103 and the end plate 104 can also be connected by welding.

[0070] According to some embodiments of the present invention, the blades 102 are metal parts. In this way, the blades 102 have high tensile strength, and when the impeller 10 rotates at a high speed, the blades 102 have good bending resistance, which is conducive to reducing the size of the impeller 10 and preventing the working efficiency of the impeller 10 from being greatly reduced.

[0071] In the embodiment where the blade 102 is a metal part, reference may be made to Figure 8 As shown, the thickness d of the blade 102 is 0.2mm to 0.8mm. It should be noted that, usually, the blade is a plastic material. In order to ensure the strength of the blade, the thickness of the blade is usually much greater than 1mm. In order to reduce the size of the volute 30, if the size of the impeller 10 is directly reduced without reducing the thickness d of the blade 102, the volume of the air inlet chamber 101 of the impeller 10 will be greatly reduced, and the vortex generated by the airflow flowing to the blade 102 will increase, affecting the working efficiency of the impeller 10. The blade 102 in the present application is a metal blade, and the thickness d of the blade 102 can reach 0.2mm to 0.8mm. That is to say, the thickness d of the blade 102 in the present application is small, and the space occupied by the air inlet chamber 101 is less, which is conducive to reducing the generation of vortex, so that the working efficiency of the impeller 10 will not be greatly reduced. Specifically, for example, the thickness d of the blade 102 can be 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm or any value between two values.

[0072] According to some embodiments of the present invention, reference can be made to Figure 6 and Figure 7As shown, the ratio of the axial dimension H of the impeller 10 to the diameter D of the impeller 10 is 0.2 to 0.4. For example, the ratio of the axial dimension H of the impeller 10 to the diameter D of the impeller 10 can be 0.2, 0.22, 0.24, 0.26, 0.28, 0.3, 0.32, 0.34, 0.36, 0.38, 0.4 or any value between two values. When the ratio of the axial dimension H of the impeller 10 to the diameter D of the impeller 10 is within this range, when the airflow flows in the impeller 10, the airflow has good flow stability, turbulence and eddy current are not likely to occur, and the working efficiency of the impeller 10 is high; at the same time, the axial dimension of the blade 102 will not be too small, and the working efficiency of the impeller 10 is good.

[0073] According to some embodiments of the present invention, reference can be made to Figure 6 and Figure 7 As shown, the axial dimension H of the impeller 10 is 30-40 mm, and the diameter D of the impeller 10 is 120-140 mm.

[0074] It should be noted that the axial dimension of the impeller in the related art is more than 40 mm, and the diameter of the impeller is more than 150 mm, that is, the size of the impeller is relatively large. In order to further improve the clothing treatment device 100, so that the clothing treatment device 100 has more functions or better use effects, it is necessary to add some components, which will occupy the space of the clothing treatment device 100. The axial dimension H of the impeller 10 of the present application is 30-40 mm, and the diameter D of the impeller 10 is 120-140 mm, that is, the size of the impeller 10 of the present application is smaller, so that the space occupied by the volute 30 defining the impeller cavity 301 is reduced, so as to leave space for arranging other components. At the same time, the impeller 10 is made into a metal impeller, and the proportion of the impeller 10 occupying the internal space of the volute 30 is smaller, so that the volume of the air inlet cavity 101 will not be too small, thereby making the working efficiency of the impeller 10 not greatly reduced.

[0075] In some embodiments, Figure 1 As shown, the clothing treatment device 100 includes a clothing treatment component, an air duct component 20 and a volute 30. The clothing treatment component defines a clothing treatment chamber; the air duct component 20 defines an air duct chamber 202; the volute 30 is connected between the clothing treatment component and the air duct component 20 and is suitable for defining an impeller chamber 301. The clothing treatment chamber is used to accommodate clothing. The clothing treatment chamber can be used to perform one or more of drying, sterilization, and fragrance treatment on clothing. The airflow discharged from the impeller chamber 301 will enter the clothing treatment chamber and the air duct chamber 202 in turn, and then return to the impeller chamber 301 to form a cycle. The air duct component 20 and the volute 30 can be formed separately and then connected to each other; or, part of the air duct component 20 and part of the volute 30 can be formed in one piece to reduce the connection process and improve production efficiency.

[0076] According to some embodiments of the present invention, the volute 30 is a plastic part. In this way, the volute 30 is easy to shape and has low manufacturing cost.

[0077] In some embodiments, the air duct assembly 20 may also be a plastic part, which is convenient for molding and has low processing cost.

[0078] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0080] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A clothes processing device, characterized in that: The laundry processing device comprises a laundry processing chamber, an air duct chamber and an impeller chamber, the laundry processing chamber comprises a first air inlet and a first air outlet, the air duct chamber comprises a second air inlet and a second air outlet, the second air inlet is connected to the first air outlet, and the impeller chamber is connected to the second air outlet and the first air inlet; An impeller is arranged in the impeller cavity, and the impeller comprises a plurality of blades, and a leading edge of at least one of the blades has a cutting edge.

2. The clothes treating device according to claim 1, characterized in that: The impeller has an air inlet side at one axial end and an air outlet side in a circumferential direction, and the cutting edge is located at the air inlet side.

3. The clothes treating device according to claim 1, characterized in that: The impeller has an air inlet cavity arranged opposite to the inlet of the impeller cavity, and the impeller includes a plurality of blades arranged at intervals along the circumference of the air inlet cavity, and the edge of the blade facing the air inlet cavity is a leading edge; In the radial direction of the air inlet cavity, the cutting edge extends from outside the air inlet cavity to inside the air inlet cavity in a direction away from the inlet of the impeller cavity.

4. The clothes treating device according to claim 3, characterized in that: The blade further comprises a first edge, a second edge and a trailing edge, wherein the first edge and the second edge are spaced apart in the axial direction of the impeller, the first edge is closer to the inlet of the impeller cavity than the second edge, and the trailing edge is located at a side of the blade away from the air inlet cavity; The leading edge of at least one of the blades includes a first extension portion and a second extension portion, the first edge and the second extension portion are connected by the first extension portion, the first extension portion forms the cutting edge, and along the direction from the trailing edge to the second extension portion, the first extension portion gradually moves away from the inlet of the impeller chamber.

5. The clothes treating device according to claim 4, characterized in that: The angle between the first extension portion and the extension line of the first edge is 15° to 60°; and / or, The ratio of a size of a projection of the first edge in an extending direction of the first edge to a size of the first extending portion is 1:1 to 3:

1.

6. The clothes treating device according to claim 4, characterized in that: The impeller also includes a wheel disc and an end plate, wherein the wheel disc and the end plate are spaced apart along the axial direction of the impeller, a plurality of blades are connected between the wheel disc and the end plate, a middle portion of the end plate has a vent, the vent is connected between the inlet of the impeller cavity and the air inlet cavity, the first edge is connected to the end plate, and the second edge is connected to the wheel disc.

7. The clothes treating device according to claim 6, characterized in that: Along the direction from the trailing edge to the leading edge, the dimension of the end plate is smaller than the dimension of the second edge; and / or, The wheel disc and / or the end plate are metal parts; and / or, The blades are riveted to the wheel disc and the end plate.

8. The clothes treating device according to any one of claims 1 to 7, characterized in that: The blade is a metal part.

9. The clothes treating device according to claim 8, characterized in that: The thickness of the blade is 0.2 mm to 0.8 mm.

10. The clothes treating device according to any one of claims 1 to 7, characterized in that: The ratio of the axial dimension of the impeller to the diameter of the impeller is 0.2 to 0.4; and / or, The axial dimension of the impeller is 30-40 mm, and the diameter of the impeller is 120-140 mm; and / or, The laundry processing device comprises: a clothes processing assembly, the clothes processing assembly defining the clothes processing chamber; an air duct assembly, wherein the air duct assembly defines the air duct cavity; A volute is connected between the clothing processing assembly and the air duct assembly and is suitable for defining the impeller chamber. The volute is a plastic part.

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