Laundry treating apparatus

Abstract

The utility model provides clothes treatment equipment, and relates to the technical field of household appliances. The laundry treating apparatus includes a cabinet, a drum assembly, a motor, and a support structure. Wherein the barrel assembly comprises an outer barrel and an inner barrel which are rotationally connected, the motor is arranged on the periphery of the outer barrel and used for driving the inner barrel to rotate, the supporting structure comprises a motor connecting part and an outer barrel connecting part, fixed connection between the motor and the outer barrel is achieved, and one or more of the shapes, the sizes and the like of the motor connecting part or the outer barrel connecting part are set; the rigidity of the supporting structure is guaranteed, the weight is reduced, the inherent frequency is improved, and therefore transmission of motor vibration to the outer cylinder is weakened or even isolated.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of household appliances, and particularly to a laundry treatment apparatus. BACKGROUND

[0002] Laundry treatment apparatuses are laundry treatment apparatuses that convert electric energy into mechanical energy to wash or dry laundry, and have now entered thousands of households and are very popular.

[0003] At present, laundry treatment apparatuses use a motor as a driving component to work, and the motor is installed on an outer tub of the laundry treatment apparatus through a mounting plate or a mounting portion extending from the outer periphery of an outer tub. When the laundry treatment apparatus works, the motor drives the inner tub to rotate to wash laundry through a transmission assembly such as a belt, and the vibration generated by the motor is transmitted to the outer tub through the mounting plate or the mounting portion, which not only generates a large amount of noise, but also causes interference to the normal operation of the inner tub of the laundry treatment apparatus, affecting the stability and service life of the laundry treatment apparatus. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the purpose of the present disclosure is to provide a laundry treatment apparatus to improve the problem that the vibration of the motor is transmitted to the outer tub in the prior art, causing the laundry treatment apparatus to generate a large amount of noise and have poor stability.

[0005] To achieve at least one of the above purposes, the present disclosure provides the following technical solutions:

[0006] In a first aspect, a laundry treatment apparatus is provided, comprising:

[0007] a cabinet provided with a drop opening;

[0008] an outer tub arranged inside the cabinet; the outer tub has a rear wall away from the drop opening and a side wall arranged around the outer periphery of the rear wall;

[0009] an inner tub rotatably arranged inside the outer tub through a rotating shaft;

[0010] a motor arranged outside the outer tub, the motor being configured to drive the inner tub to rotate;

[0011] a support structure configured to support the outer tub and connect the motor to the outer tub through the support structure;

[0012] The support structure comprises:

[0013] a motor connecting portion configured to be connected to the motor;

[0014] an outer tub connecting portion arranged on the side of the rear wall of the outer tub away from the drop opening, the outer tub connecting portion being configured to be connected between the motor connecting portion and the outer tub;

[0015] The outer cylinder connecting part comprises:

[0016] The mounting part is penetrated by the rotating shaft;

[0017] A plurality of support arms, each of which extends to the sidewall of the outer cylinder along a different radial direction of the rotating shaft from the mounting part and is connected with the sidewall of the outer cylinder;

[0018] The support arm comprises:

[0019] Oppositely arranged first side plate and second side plate;

[0020] The connecting plate is connected between the first side plate and the second side plate;

[0021] The structure formed by the first side plate, the second side plate and the connecting plate forms at least one of the first groove and the second groove on the support arm;

[0022] The first groove is a groove recessed in the first direction towards the drop port;

[0023] The second groove is a groove recessed in the first direction away from the drop port;

[0024] Wherein, the first direction is the axial direction of the rotating shaft.

[0025] In the above technical solution, the support structure is used to realize the fixed connection between the motor and the outer cylinder, and the support arm connected with the outer cylinder in the support structure is arranged as a structure surrounded by the first side plate, the second side plate and the connecting plate, so that the support arm has at least one groove on at least one side in the first direction.

[0026] Firstly, the support arm has the groove, which can reduce the weight of the support arm and the manufacturing cost of the support arm and the whole support structure.

[0027] Further, the groove on the support arm is recessed in the first direction towards or away from the drop port, so the side surface of the groove, i.e. the plane where the first side plate and the second side plate are located, is approximately parallel to the first direction, thereby ensuring that the support arm has strong bending stiffness in the first direction, and thus after the connection between the motor and the outer cylinder is realized by the support structure, the support arm or the support structure will not bend in the first direction due to the weight or vibration of the motor.

[0028] Further, the above technical solution can not only meet the rigidity requirement of the support structure, but also reduce the weight of the support structure, that is, a larger rigidity k is realized with a smaller weight m. Since the natural frequency f of the object is related to the weight m and the rigidity k as f∝k / m, the support structure provided by the above technical solution has a higher natural frequency f, and the vibration resistance is enhanced, so that the support structure is less affected by the vibration of the motor, the vibration transmission from the motor to the outer cylinder can be weakened or even isolated, the stability of the cylinder assembly and the whole laundry treatment equipment is improved, and the working noise of the laundry treatment equipment is reduced.

[0029] In some embodiments, the first side plate has a first end and a second end oppositely arranged along the first direction;

[0030] The second side plate has a third end and a fourth end oppositely arranged along the first direction;

[0031] The connection mode between the first side plate, the second side plate and the connecting plate satisfies any one of the following conditions:

[0032] One end of the connecting plate is connected to the first end, and the other end of the connecting plate is connected to the third end;

[0033] One end of the connecting plate is connected to the first end, and the other end of the connecting plate is connected to the third end and the fourth end;

[0034] One end of the connecting plate is connected between the first end and the second end, and the other end of the connecting plate is connected between the third end and the fourth end.

[0035] In the above technical solution, since the groove on the support arm is surrounded by the first side plate, the second side plate and the connecting plate, the connection mode between the first side plate, the second side plate and the connecting plate can form grooves of different numbers and different positions on the support arm; correspondingly, the support arm can have different shapes such as S shape, N shape, U shape or H shape in the cross section perpendicular to the extension direction of the support arm.

[0036] The support arm formed by different connection modes can be different in rigidity or weight; in actual application scenarios, the specific structure of the support arm can be flexibly selected according to the application requirements of different laundry treatment equipment.

[0037] In some embodiments, the thickness of the support arm is inconsistent in the extension direction of the support arm; the thickness of the support arm is the size of the support arm along the first direction;

[0038] The minimum thickness s and the maximum thickness H of the support arm satisfy:

[0039] s<H, and s>25mm, and H<189mm;

[0040] The ratio s / H of the minimum thickness s and the maximum thickness H satisfies:

[0041] s / H>13% and s / H<100%.

[0042] In the above technical solution, the thickness of the support arm is not consistent along its extension direction, and the ratio s / H of the minimum thickness s, the maximum thickness H or the thickness step satisfies the corresponding threshold range, which can not only guarantee the rigidity requirement of the support arm, but also avoid excessive thickness, so that the size of the existing cabinet and outer cylinder of the clothes processing equipment does not need to be changed, and additional modification cost is not brought.

[0043] In some embodiments, the first middle section of the outer cylinder connecting part is coplanar with the second middle section of the motor connecting part;

[0044] The first middle section passes through the thickness midpoint of the outer cylinder connecting part and is perpendicular to the first direction, and the second middle section passes through the thickness midpoint of the motor connecting part and is perpendicular to the first direction.

[0045] In the above technical solution, the middle sections of the outer cylinder connecting part and the motor connecting part of the support structure are coplanar, so that the outer cylinder connecting part and the motor connecting part will not be misaligned in the direction of the middle axis of the outer cylinder connecting part, so that the force exerted by the motor itself on the support structure will also act on the middle section when the motor connecting part is connected with the motor, and no component force in the direction of the middle axis of the outer cylinder connecting part will be generated, so that no torque that bends the support structure will be generated, unnecessary total torque will be avoided, and the stability of the outer cylinder and the clothes processing equipment as a whole will be ensured.

[0046] In some embodiments, the motor connecting part comprises: two side connecting arms connected to the support arm;

[0047] An intermediate connecting arm is connected between the two side connecting arms.

[0048] At least one of a first weight-reducing groove and a second weight-reducing groove is provided on the side connecting arm.

[0049] The first weight-reducing groove is a groove recessed towards the drop opening along the first direction.

[0050] The second weight-reducing groove is a groove recessed away from the drop opening along the first direction.

[0051] In the technical solution, the side connecting arm is provided with a lightening groove, and the lightening groove is recessed in the first direction. Compared with a simple flat plate, the side connecting arm with the lightening groove has smaller weight, lower cost, and stronger bending stiffness in the first direction, so that the side connecting arm will not bend in the first direction due to the weight or vibration of the motor after being connected with the motor.

[0052] Further, the side connecting arm in the technical solution has larger stiffness k with smaller weight m, so that the inherent frequency of the side connecting arm is improved, the bending resistance and vibration resistance of the side connecting arm are stronger, the stable connection between the motor and the motor connecting part is ensured, the vibration transmission from the motor to the outer cylinder is weakened or even isolated, and the overall stability of the clothes treatment equipment is improved.

[0053] In some embodiments, the side connecting arm is provided with a side connecting part at one end away from the support arm.

[0054] The intermediate connecting arm is provided with an intermediate connecting part.

[0055] The two side connecting parts and the intermediate connecting part are respectively connected with the motor, and at least one of the following conditions is met:

[0056] The orthogonal projection on the first projection plane is in triangular distribution.

[0057] The orthogonal projection on the second projection plane is in triangular distribution.

[0058] The first projection plane is perpendicular to the first direction, and the second projection plane is perpendicular to the second direction, and the second direction is the arrangement direction of the rotating shaft and the intermediate connecting part.

[0059] In the technical solution, the motor connecting part is provided with three connecting arms connected with the motor, so that three-point support connection between the motor and the support structure is realized. Compared with the traditional two-point support connection, the stability of the motor after assembly is stronger. Compared with the traditional four-point support connection, the number of mounting points between the motor and the outer cylinder is smaller, the assembly efficiency is improved, and the cost is saved.

[0060] In addition, in the technical solution, the three projection points of the two side connecting parts and the intermediate connecting part on the first projection plane are in triangular distribution, or the three projection points on the second projection plane are in triangular distribution, which can ensure that the three connecting parts between the motor and the motor mounting part are in triangular distribution, so as to improve the connection stability between the motor and the motor mounting part by using the stability of the triangle, and resist the bending stress of the support structure caused by the tension of the belt and reduce the stiffness requirement of the support structure.

[0061] In some embodiments, a side of the side connecting arm facing the drop opening is provided with a relief portion which is adapted to the side wall of the outer cylinder.

[0062] In the above technical solution, the relief portion is arranged on the side connecting arm to accommodate the part of the side wall of the outer cylinder protruding relative to the rear wall, so that the support arm connected with the side connecting arm can be connected with the outer wall of the outer cylinder; in addition, it also helps to realize the coplanar of the first middle section of the outer cylinder connecting portion and the second middle section of the motor connecting portion, avoid unnecessary bending torque of the support structure, and further improve the stability of the overall clothes treatment equipment.

[0063] In the second aspect, a clothes treatment equipment is also provided, comprising:

[0064] A cabinet is provided with a drop opening;

[0065] An outer cylinder is arranged inside the cabinet; the outer cylinder has a rear wall away from the drop opening and a side wall surrounding the outer periphery of the rear wall;

[0066] An inner cylinder is rotatably arranged inside the outer cylinder through a rotating shaft;

[0067] A motor is arranged outside the outer cylinder, and the motor is configured to drive the inner cylinder to rotate;

[0068] A support structure is configured to support the outer cylinder, and the motor is connected to the outer cylinder through the support structure;

[0069] The support structure comprises:

[0070] A motor connecting portion is configured to be connected with the motor;

[0071] An outer cylinder connecting portion is arranged on the side of the rear wall of the outer cylinder away from the drop opening, and the outer cylinder connecting portion is configured to be connected between the motor connecting portion and the outer cylinder;

[0072] The outer cylinder connecting portion comprises:

[0073] A mounting portion is penetrated by the rotating shaft;

[0074] A plurality of support arms are each extended to the side wall of the outer cylinder along different radial directions of the rotating shaft from the mounting portion and connected with the side wall of the outer cylinder;

[0075] In the extension direction of the support arm, the thickness of the support arm is not consistent;

[0076] The minimum thickness s and the maximum thickness H of the support arm satisfy:

[0077] s < H, s > 25 mm, and H < 189 mm.

[0078] The ratio s / H of the minimum thickness s and the maximum thickness H satisfies:

[0079] s / H>13% and s / H<100%;

[0080] The thickness of the support arm is a dimension of the support arm along a first direction; and the first direction is an axial direction of the rotation shaft.

[0081] In the above technical solution, the thickness of the support arm is not uniform along the extension direction thereof, so that the weight of the support arm can be reduced as much as possible on the premise of ensuring the rigidity of the support arm, thereby reducing the cost. In addition, the minimum thickness s, the maximum thickness H, or the thickness step ratio s / H is limited to a corresponding value, so that the rigidity requirement of the support arm can be ensured, and the thickness can be prevented from being too large, thereby avoiding additional modification cost caused by changing the size of the existing cabinet and outer drum of the clothes treatment apparatus.

[0082] In a third aspect, a clothes treatment apparatus is provided, comprising:

[0083] A cabinet is provided with a drop opening;

[0084] An outer drum is arranged inside the cabinet; the outer drum has a rear wall away from the drop opening and a side wall surrounding the outer periphery of the rear wall;

[0085] An inner drum is rotatably arranged inside the outer drum through a rotation shaft;

[0086] A motor is arranged outside the outer drum, and the motor is configured to drive the inner drum to rotate;

[0087] A support structure is configured to support the outer drum, and the motor is connected to the outer drum through the support structure;

[0088] The support structure comprises:

[0089] A motor connecting portion is configured to be connected with the motor;

[0090] An outer drum connecting portion is arranged on the side of the rear wall of the outer drum away from the drop opening, and the outer drum connecting portion is configured to be connected between the motor connecting portion and the outer drum;

[0091] The outer drum connecting portion comprises:

[0092] A mounting portion is penetrated by the rotation shaft;

[0093] A plurality of support arms are each extended to the side wall of the outer drum from the mounting portion along different radial directions of the rotation shaft, and connected with the side wall of the outer drum;

[0094] The first middle section of the outer cylinder connecting portion is coplanar with the second middle section of the motor connecting portion;

[0095] The first middle section passes through a thickness midpoint of the outer cylinder connecting portion and is perpendicular to a first direction, the second middle section passes through a thickness midpoint of the motor connecting portion and is perpendicular to the first direction, and the first direction is an axial direction of the rotating shaft.

[0096] In the above technical solution, the middle sections of the outer cylinder connecting portion and the motor connecting portion of the support structure are coplanar, so that the outer cylinder connecting portion and the motor connecting portion will not be misaligned in the direction of the central axis of the outer cylinder connecting portion, and thus, when the motor connecting portion is connected to the motor, the force exerted on the support structure by the weight of the motor is parallel to the middle section, and no component force perpendicular to the middle section (i.e., parallel to the first direction) is generated, so that no torque that causes the support structure to bend in the first direction is generated, unnecessary bending torque is avoided, and the stability of the outer cylinder and the overall laundry treatment apparatus is ensured.

[0097] In a fourth aspect, a laundry treatment apparatus is also provided, which includes:

[0098] A cabinet is provided with a drop opening.

[0099] An outer cylinder is arranged inside the cabinet, and has a rear wall away from the drop opening and a side wall surrounding the outer periphery of the rear wall.

[0100] An inner cylinder is rotatably arranged inside the outer cylinder through a rotating shaft.

[0101] A motor is arranged outside the outer cylinder, and is configured to drive the inner cylinder to rotate.

[0102] A support structure is configured to support the outer cylinder and connect the motor to the outer cylinder through the support structure.

[0103] The support structure includes:

[0104] A motor connecting portion is configured to be connected to the motor.

[0105] An outer cylinder connecting portion is arranged on the side of the rear wall of the outer cylinder away from the drop opening, and is configured to be connected between the motor connecting portion and the outer cylinder.

[0106] The outer cylinder connecting portion includes:

[0107] A mounting portion is penetrated by the rotating shaft.

[0108] a plurality of support arms, each of the support arms extending to a sidewall of the outer cylinder along a different radial direction of the rotation axis and being connected to the sidewall of the outer cylinder;

[0109] the motor connecting portion comprises:

[0110] two side connecting arms connected to the support arms;

[0111] an intermediate connecting arm connected between the two side connecting arms;

[0112] at least one of a first weight-reducing groove and a second weight-reducing groove is arranged on the side connecting arm;

[0113] the first weight-reducing groove is a groove recessed towards the drop opening along a first direction;

[0114] the second weight-reducing groove is a groove recessed away from the drop opening along the first direction;

[0115] wherein the first direction is an axial direction of the rotation axis.

[0116] In the above technical solution, the motor connecting portion is provided with three connecting arms, i.e., two side connecting arms and an intermediate connecting arm connected between the two side connecting arms, which are respectively connected with the motor, so as to realize three-point support type connection between the motor and the support structure. Compared with the traditional two-point support type connection, the stability of the motor after assembly is stronger. Compared with the traditional four-point support type connection, the number of mounting points between the motor and the outer cylinder is less, which can improve the assembly efficiency and save costs.

[0117] In addition, the side connecting arm is provided with a weight-reducing groove, and the weight-reducing groove is recessed along the first direction. Compared with a simple flat plate, the side connecting arm with the weight-reducing groove can not only have a smaller weight and reduce costs, but also have a stronger bending stiffness in the first direction, so that after being connected with the motor, the side connecting arm will not be bent along the first direction due to the weight or vibration of the motor.

[0118] In the above technical solution, the side connecting arm realizes a larger stiffness k with a smaller weight m, thereby improving the natural frequency of the side connecting arm and making it have stronger bending resistance and vibration resistance. The stable connection between the motor and the motor connecting portion can be ensured, and the vibration transmission from the motor to the outer cylinder can be weakened or even isolated, thereby improving the overall stability of the clothes treatment equipment. BRIEF DESCRIPTION OF DRAWINGS

[0119] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0120] Figure 1 A perspective structural schematic diagram of a clothes treating apparatus according to some embodiments of the present disclosure;

[0121] Figure 2 A schematic diagram of the internal structure of a clothes treating apparatus according to some embodiments of the present disclosure, with the cabinet removed;

[0122] Figure 3 A rear view of the internal structure of a clothes treating apparatus according to some embodiments of the present disclosure;

[0123] Figure 4 A schematic diagram of the cross-sectional structure of the clothes treating apparatus shown in FIG. 4 along the A-A direction; Figure 3

[0124] A side view of the internal structure of a clothes treating apparatus according to some embodiments of the present disclosure; Figure 5

[0125] A rear view of the internal structure of a clothes treating apparatus according to some embodiments of the present disclosure; Figure 6

[0126] A schematic diagram of the cross-sectional structure of the clothes treating apparatus shown in FIG. 8 along the B-B direction; Figure 7 Figure 6 A perspective structural schematic diagram of a support structure according to some embodiments of the present disclosure;

[0127] Figure 8 A front view structural schematic diagram of a support structure according to some embodiments of the present disclosure;

[0128] Figure 9 A rear view structural schematic diagram of a support structure according to some embodiments of the present disclosure;

[0129] Figure 10 A side view structural schematic diagram of a support structure according to some embodiments of the present disclosure;

[0130] Figure 11 A schematic diagram of the cross-sectional structure of the support structure shown in FIG. 14 along the C-C direction;

[0131] Figure 12 Figure 9

[0132] ​​​Figure 13 FIG. 3 is a schematic view of a cross-sectional structure of the support structure in a D-D direction; Figure 9

[0133] Figure 14 FIG. 4 is a schematic view of a perspective structure of a motor assembled on a support structure according to some embodiments of the present disclosure;

[0134] Figure 15 FIG. 5 is a schematic view of a front structure of a motor assembled on a support structure according to some embodiments of the present disclosure;

[0135] Figure 16 FIG. 6 is an exploded view of a motor and a support structure according to some embodiments of the present disclosure;

[0136] Figure 17 FIG. 7 is a schematic view of a point connected with a motor in a support structure projected in different directions according to some embodiments of the present disclosure;

[0137] Figure 18 FIG. 8 is a schematic view of a first projection plane obtained by projecting in a first direction according to some embodiments of the present disclosure; Figure 17

[0138] Figure 19 FIG. 9 is a schematic view of a second projection plane obtained by projecting in a second direction according to some embodiments of the present disclosure; Figure 17

[0139] Figure 20 FIG. 10 is a schematic view of a cross-sectional structure of a support arm according to some embodiments of the present disclosure.

[0140] The reference signs are as follows:

[0141] 1 - box, 11 - drop port, 12 - door body, 13 - box bottom;

[0142] 2 - mounting plate;

[0143] 3 - cylinder assembly, 31 - outer cylinder, 311 - rear wall of outer cylinder, 312 - side wall of outer cylinder, 3121 - side wall extension, 32 - inner cylinder, 33 - rotating shaft;

[0144] 4 - motor, 41 - output shaft, 42 - matching part, 43 - damping part, 44 - fixing part;

[0145] 5 - support structure;

[0146] 51 - outer cylinder connecting part, 511 - mounting part, 512 - support arm, 512a - first groove, 512b - second groove, 5121 - first side plate, 5121a - first end, 5121b - second end, 5122 - second side plate, 5122a - third end, 5122b - fourth end, 5123 - connecting plate;​​​

[0147] 52 - motor connection portion, 52a - first weight reduction groove, 52b - second weight reduction groove, 52c - reinforcing rib, 521, 522 - side connecting arm, 5211, 5221 - side connecting portion, 523 - middle connecting arm, 5231 - middle connecting portion, 524 - avoiding portion;

[0148] 6 - belt;

[0149] 7 - pulley;

[0150] 8 - hanging spring;

[0151] 9 - shock absorber. DETAILED DESCRIPTION

[0152] The present disclosure will be further described by the accompanying drawings and embodiments. The features and advantages of the present disclosure will become more apparent from the detailed description in conjunction with the drawings.

[0153] Unless otherwise defined, all technical and scientific terms used in the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used in the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present disclosure; the use of the terms "including," "comprising," or "having" and variations thereof herein is meant to encompass the inclusion of the recited elements but not the exclusion of others not recited.

[0154] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the disclosure. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. It is expressly understood that any of the embodiments described herein can be incorporated into any other embodiment.

[0155] The specific word "exemplary" in the present disclosure means "serving as an example, an instance, or illustration." In other words, any embodiment described as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The embodiments are illustrated in the accompanying drawings, but are not necessarily drawn to scale unless specifically indicated.

[0156] In the description of the disclosure, the technical terms "first", "second", "third" and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the technical features indicated.

[0157] In the description of the disclosure, the technical term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing alone, A and B existing together, and B existing alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are "or" relationship.

[0158] In the description of the disclosure, the technical terms "upper", "lower", "inner", "outer", "front", "back", "left", "right", "top", "bottom" and the like indicate the orientation or positional relationship based on the working state of the disclosure, and are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the disclosure.

[0159] In the description of the disclosure, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0160] In the description of the disclosure, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be indirectly in contact through an intermediate medium. Moreover, the first feature "on", "above" and "above" the second feature can be directly above or obliquely above the first feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature can be directly below or obliquely below the first feature, or it can only mean that the horizontal height of the first feature is less than that of the second feature.

[0161] In the description of the disclosure, the meaning of "a plurality of" is more than two (including two), unless otherwise explicitly specified and limited.

[0162] In the description of the disclosure, the same reference signs represent the same parts, and for the sake of brevity, detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and other dimensions of various components in the embodiments of the disclosure shown in the drawings, as well as the overall thickness, length and other dimensions of integrated devices, are only exemplary and should not constitute any limitation on the disclosure.

[0163] Laundry treating apparatuses are laundry treating apparatuses that convert electric energy into mechanical energy to wash or dry laundry, and are now very popular in thousands of households. At present, laundry treating apparatuses adopt a motor as a driving component, and the motor can drive an inner tub in the laundry treating apparatus to rotate to complete washing or drying work. As part of the inventive concept of the present disclosure, first, the reasons for the motor vibration of the laundry treating apparatus causing the outer tub vibration and then affecting the stability of the laundry treating apparatus are analyzed, and the technical solution of the embodiments of the present disclosure is obtained through reasonable analysis. Figures 1 to 3

[0164] Figure 1 Figure 2 A structure schematic view of the outside and inside of a laundry treating apparatus provided by some embodiments of the present disclosure is shown in Figure 3 Figure 2 A rear view of the inside of the laundry treating apparatus shown in Figure 4 Figure 3 A cross-sectional view of A-A direction in

[0165] For reference Figures 1 to 4 The laundry treating apparatus includes a cabinet 1, a mounting plate 2, a tub assembly 3, and a motor 4. The tub assembly 3 is arranged inside the cabinet 1, and the motor 4 is arranged inside the cabinet 1 and fixed to the outer periphery of the outer tub 31 through the mounting plate 2. The motor 4 can drive the tub assembly 3 to work to complete washing or drying work.

[0166] In some embodiments, the laundry treating apparatus can be a drum washing machine with only washing function, or a washer-dryer with washing and drying functions. For convenience of description, the structure of the laundry treating apparatus will be specifically described below by taking a drum washing machine as an example.

[0167] In some embodiments, as shown in Figure 1 The cabinet 1 forms the shell of the laundry treating apparatus, and is usually a rectangular hollow structure. The appearance shape of the cabinet 1 can be designed as needed, which is not limited here. The cabinet 1 is internally provided with a containing cavity, which can provide installation space for components such as the tub assembly 3 and the motor 4.

[0168] The cabinet 1 is provided with a dropping port 11, which can be substantially circular and arranged on the front end face of the cabinet 1. The dropping port 11 communicates with the containing cavity. Of course, the dropping port 11 can also be arranged on other end faces of the cabinet 1, which is not limited here, but for a conventional drum washing machine, the dropping port 11 is generally arranged on the front end face of the cabinet 1. A door body 12 is also mounted on the cabinet 1, and is movably connected to the cabinet 1 near the dropping port 11 through a hinge shaft to open or close the dropping port 11.

[0169] In some embodiments, as shown in Figures 2 to 4 ​​​​As shown, the drum assembly 3 is arranged in the accommodating cavity of the cabinet 1, and can be used for washing, rinsing, dehydration and drying of laundry.

[0170] The drum assembly 3 is provided with a drum opening. The drum opening can be substantially circular and arranged on the front end surface of the drum assembly 3. The drum opening is arranged opposite to the dropping opening 11.

[0171] The drum assembly 3 further has a washing cavity which can hold laundry. After the door body 12 is opened, laundry can be put into or taken out of the washing cavity through the dropping opening 11 and the drum opening.

[0172] The drum assembly 3 comprises an outer drum 31 and an inner drum 32. The outer drum 31 is arranged in the accommodating cavity of the cabinet 1. The outer drum 31 has a rear wall 311 away from the dropping opening 11 and a side wall 312 surrounding the outer periphery of the rear wall 311.

[0173] The inner drum 32 is rotatably arranged in the inner portion of the outer drum 31 through a rotating shaft 33. The washing cavity is formed in the inner drum 32, so that the inner drum 32 can rotate relative to the outer drum 31 to improve the uniformity of laundry washing and dehydration. The outer drum 31 and the inner drum 32 can be coaxially arranged inside and outside. The front side of the outer drum 31 and the front side of the inner drum 32 are both provided with oppositely arranged openings. The opening on the front side of the outer drum 31 can serve as the drum opening of the drum assembly 3.

[0174] As shown in some embodiments, Figure 2 and Figure 3 The outer drum 31 is hung through a hanging spring 8. The outer drum 31 is further connected to the bottom of the cabinet 1, i.e. the cabinet bottom 13, through a shock absorber 9.

[0175] Since the centrifugal force generated by the high-speed rotation of the inner drum 32 during washing and dehydration can cause the drum assembly 3 to vibrate, the hanging spring 8 and the shock absorber 9 can serve as stabilizers of the drum assembly 3 to absorb or buffer the vibration. In addition, the hanging spring 8 and the shock absorber 9 can adaptively adjust the tension or support force according to the inclination of the drum assembly 3 to maintain the balance of the drum assembly 3, thereby ensuring the stability of the laundry treatment apparatus.

[0176] As shown in some embodiments, Figures 2 to 4 The motor 4 serves as a driving component for driving the inner drum 32 and is arranged on the outer periphery of the outer drum 31. Alternatively, the motor 4 can be arranged directly below or obliquely below the outer drum 31.

[0177] The output shaft 41 of the motor 4 extends toward the rear side of the outer drum 31. In a static state, the output shaft 41 of the motor 4 can be arranged parallel to the rotating shaft 33. The output shaft 41 of the motor 4 is drivingly connected to the rotating shaft 33 through the belt 6 and the belt pulley 7. After the motor 4 is started, the output shaft 41 rotates to drive the belt pulley 7 to rotate through the belt 6, and the belt pulley 7 drives the rotating shaft 33 to rotate, so that the rotating shaft 33 drives the inner drum 32 to rotate around the axis of the rotating shaft 33.

[0178] To ensure that the rotation of the output shaft 41 can be transmitted to the rotating shaft 33, the belt 6 needs to maintain a certain tension, and too loose or too tight will affect the transmission effect, and even affect the service life of the belt 6. That is, the distance between the output shaft 41 and the rotating shaft 33 needs to be kept within a certain range; therefore, the motor 4 needs to be fixedly connected with the outer cylinder 31 to prevent the distance between the output shaft 41 and the rotating shaft 33 from frequently changing due to the rotation of the inner cylinder 32, the vibration of the motor 4, and the like during the operation of the clothes treatment apparatus.

[0179] However, in some embodiments, as shown in Figure 2 and Figure 3 , the fixed connection between the motor 4 and the outer cylinder 31 is achieved by the mounting plate 2. Since the mounting plate 2 is usually a steel plate several millimeters thick, the vibration resistance performance is poor, and the vibration generated by the motor 4 during operation will be transmitted to the outer cylinder 31 through the mounting plate 2, causing the vibration of the outer cylinder 31 and the inner cylinder 32. In some other embodiments, the fixed connection between the motor and the outer cylinder is achieved by the mounting portion extending outward from the outer periphery of the outer cylinder, and the vibration of the motor will also be transmitted to the outer cylinder. In this way, not only will a large noise be generated, but also the stability and service life of the clothes treatment apparatus will be affected.

[0180] Therefore, in some embodiments of the present disclosure, the mounting plate 2 is not used, and the fixed connection between the motor 4 and the outer cylinder 31 is achieved by the support structure, so as to weaken or even isolate the vibration generated by the motor 4 from being transmitted to the outer cylinder 31 through the support structure. Hereinafter, the structure of the support structure and the clothes treatment apparatus applying the same will be described with reference to Figures 5 to 13 .

[0181] Figure 5 and Figure 6 are respectively a side view and a rear view of the inside of a clothes treatment apparatus based on the support structure 5 provided in some embodiments of the present disclosure, Figure 7 is a sectional view in the direction of B-B in Figure 6 . Figures 8 to 11 are respectively a perspective view, a front view, a rear view, and a side view of the support structure 5, Figure 12 is a sectional view in the direction of C-C in Figure 9 , Figure 13 is a sectional view in the direction of D-D in Figure 9 .

[0182] For convenience of description, in the embodiments of the present disclosure, the following three directions are defined:

[0183] First direction: the axial direction of the rotating shaft 33; the first direction is usually perpendicular to the front and rear end faces of the cabinet 1, and is also the axial direction of the cylinder assembly 3, i.e., the axial direction of the outer cylinder 31;

[0184] The second direction is the arrangement direction of the rotating shaft 33 and the output shaft 41 of the motor 4; the second direction is usually the direction of gravity and is also the direction perpendicular to the upper and lower end faces of the cabinet 1.

[0185] The third direction is the direction perpendicular to the first direction and the second direction; the third direction is usually the direction perpendicular to the left and right side faces of the cabinet 1.

[0186] As shown in Figures 5 to 7 , the motor 4 of the clothes treatment apparatus is fixedly connected to the outer drum 31 through the support structure 5; the support structure 5 can also support the outer drum 31 to avoid deformation of the outer drum 31.

[0187] As shown in Figures 8 to 11 , the support structure 5 includes an outer drum connecting portion 51 and a motor connecting portion 52; the motor connecting portion 52 is configured to be connected to the motor 4, and the outer drum connecting portion 51 is arranged on the side of the rear wall 311 of the outer drum 31 away from the drop opening 11, and the outer drum connecting portion 51 is configured to be connected between the motor connecting portion 52 and the outer drum 31.

[0188] The outer drum connecting portion 51 and the motor connecting portion 52 can be integrally formed, and there is no connecting member such as a bolt between the two to ensure the overall rigidity of the support structure 5.

[0189] In some embodiments, the support structure 5 can be made of cast iron, steel, high polymer composite material, etc., and the appropriate preparation material can be selected according to the cost, weight, rigidity, etc.

[0190] It should be noted that Figures 5 to 7 other components of the clothes treatment apparatus, such as the cabinet, the hanging spring, the damper, etc., can be described with reference to Figures 1 to 4 and related embodiments, which will not be described here.

[0191] As shown in Figure 6 , Figure 8 and Figure 9 , the outer drum connecting portion 51 includes a mounting portion 511 and a plurality of support arms 512.

[0192] The mounting portion 511 is attached to the side of the rear wall 311 of the outer drum 31 away from the drop opening 11. The mounting portion 511 is provided with a through hole through which the rotating shaft 33 penetrates, and the mounting portion 511 and the rotating shaft 33 are connected through clearance fit or interference fit, so as to realize coaxial connection of the inner drum 32, the outer drum 31 and the mounting portion 511.

[0193] The plurality of support arms 512 each extend from the mounting portion 511 to the side wall 312 of the outer drum 31 in different radial directions of the rotating shaft 33 and are connected to the side wall 312, so as to realize connection of the outer drum connecting portion 51 and the outer drum 31.

[0194] In some embodiments, the side wall 312 of the outer cylinder 31 extends outward relative to the rear wall 311 by a portion, such as a side wall extension 3121 as shown. Figure 7 The end of each support arm 512 away from the mounting portion 511 can be connected to the side wall extension 3121 by a connecting member such as a bolt, so as to achieve the connection between the support arm 512 and the side wall 312.

[0195] In some embodiments, as shown in Figure 6 , Figure 8 and Figure 9 , the outer cylinder connecting portion 51 can be provided with four support arms 512. It should be noted that in other embodiments, the number of support arms 512 can also be three, five, etc. The more the number of support arms 512, the more secure the connection between the outer cylinder connecting portion 51 and the outer cylinder 31, but the cost is also higher. Therefore, the number of support arms can be determined according to the actual scene requirements for cost and connection security, etc.

[0196] In some embodiments, as shown in Figure 7 , the outer cylinder connecting portion 51 can be arranged between the rear wall 311 of the outer cylinder 31 and the belt pulley 7, which can ensure the fixed connection between the outer cylinder connecting portion 51 and the outer cylinder 31, and will not affect the transmission connection between the belt pulley 7 and the output shaft 41 of the motor 4 through the belt 6.

[0197] In some embodiments, as shown in Figure 9 , the support arm 512 can include a first side plate 5121 and a second side plate 5122 arranged opposite to each other, and a connecting plate 5123 connected between the first side plate 5121 and the second side plate 5122. The structure surrounded by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 forms at least one of a first groove and a second groove on the support arm 512.

[0198] Among them, the first groove is a groove recessed towards the drop port 11 along the first direction; the second groove is a groove recessed away from the drop port 11 along the first direction.

[0199] In the above embodiments, the support arm 512 has at least one groove, which can reduce the weight of the support arm 512, and further reduce the manufacturing cost of the support arm 512 and the entire support structure 5.

[0200] Further, the groove on the support arm 512 is recessed towards or away from the drop opening in the first direction, so the side of the groove, i.e. the planes where the first side plate 5121 and the second side plate 5122 are located, are substantially parallel to the first direction, thereby ensuring that the support arm 512 has strong bending stiffness in the first direction, and thus after the connection between the motor 4 and the outer cylinder 31 is realized by the support structure 5, the support arm 512 or the support structure 5 will not be bent in the first direction due to the weight or vibration of the motor 4.

[0201] Still further, the support arm 512 described in the above embodiments can not only meet the stiffness requirement of the support structure 5, but also reduce the weight of the support structure 5; that is, a larger stiffness k is realized with a smaller weight m. Since there is a relationship f∝k / m between the natural frequency f of an object and its weight m and stiffness k, the support structure 5 with the above support arm 512 also has a higher natural frequency f, and the vibration resistance is enhanced, and it is not easy to be affected by the vibration of the motor 4. The vibration transmission from the motor 4 to the outer cylinder 31 can be weakened or even isolated, the stability of the cylinder assembly 3 and the overall stability of the clothes treatment equipment are improved, and the working noise of the clothes treatment equipment is reduced.

[0202] In different embodiments, the connection modes between the first side plate 5121, the second side plate 5122 and the connecting plate 5123 are different, the structures surrounded thereby are different, and the number and position of the grooves formed on the support arm 512 are also different.

[0203] In some embodiments, the first side plate 5121 has a first end and a second end which are oppositely arranged along the first direction; the second side plate 5122 has a third end and a fourth end which are oppositely arranged along the first direction; and the connection mode between the first side plate 5121, the second side plate 5122 and the connecting plate 5123 satisfies any one of the following conditions:

[0204] (1) The connecting plate 5123 is connected to the first end and the third end, respectively;

[0205] (2) The connecting plate 5123 is connected between the third end and the fourth end, and the first end, respectively;

[0206] (3) The connecting plate 5123 is connected between the first end and the second end, and between the third end and the fourth end, respectively.

[0207] In some embodiments, the above first end can be an end of the first side plate 5121 close to the drop opening 11 along the first direction, and correspondingly, the above second end can be an end of the first side plate 5121 away from the drop opening 11 along the first direction.

[0208] In some embodiments, the first end can be an end of the first side plate 5121 away from the drop opening 11 along the first direction, and the second end can be an end of the first side plate 5121 close to the drop opening 11 along the first direction.

[0209] In some embodiments, the third end can be an end of the second side plate 5122 close to the drop opening 11 along the first direction, and the second end can be an end of the second side plate 5122 away from the drop opening 11 along the first direction.

[0210] In some embodiments, the third end can be an end of the second side plate 5122 close to the drop opening 11 along the first direction, and the second end can be an end of the second side plate 5122 away from the drop opening 11 along the first direction.

[0211] Based on the above settings of the first end, the second end, the third end, and the fourth end, the connection mode (1) actually means that the connecting plate 5123 is connected to any one of the two ends of the first side plate 5121 along the first direction, and any one of the two ends of the second side plate 5122 along the first direction.

[0212] Correspondingly, the connection mode (2) actually means that the connecting plate 5123 is connected to any one of the two ends of the first side plate 5121 along the first direction, and between the two ends of the second side plate 5122 along the first direction; or the connecting plate 5123 is connected between the two ends of the first side plate 5121 along the first direction, and any one of the two ends of the second side plate 5122 along the first direction.

[0213] Correspondingly, the connection mode (3) actually means that the connecting plate 5123 is connected between the two ends of the first side plate 5121 along the first direction, and between the two ends of the second side plate 5122 along the first direction.

[0214] The support arms formed by different connection modes can be different in rigidity or weight; in actual application scenarios, the specific structure of the support arm can be flexibly selected according to the application requirements of different clothes processing devices.

[0215] Referring to Figure 12 and Figure 20, the first end of the first side plate 5121 close to the drop port 11 along the first direction is marked as 5121a; the second end of the first side plate 5121 away from the drop port 11 along the first direction is marked as 5121b; the third end of the second side plate 5122 close to the drop port 11 along the first direction is marked as 5122a; and the fourth end of the second side plate 5122 away from the drop port 11 along the first direction is marked as 5122b. In addition, the distance between the first side plate 5121 and the second side plate 5122, that is, the width w of the support arm 512.

[0216] Based on the above setting, the connection mode between the first side plate 5121, the second side plate 5122 and the connecting plate 5123, the shape of the support arm formed thereby, and the like are further described below.

[0217] It should be noted that based on the principle of the present disclosure, when the positions of the first end, the second end, the third end and the fourth end relative to the drop port 11 are different from the above setting, structures similar to those shown in Figure 12 and Figure 20 are also formed, and the embodiments of the present disclosure will not be described one by one.

[0218] In some embodiments, as shown in Figure 12 based on the above connection mode (1), the connecting plate 5123 is connected to the first end 5121a of the first side plate 5121 and the fourth end 5122b of the second side plate 5122 respectively, and the connecting plate 5123 has a bending part.

[0219] Based on the structure shown in Figure 12 the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 can be approximately S-shaped in the first cross section; the first cross section is perpendicular to the extension direction of the support arm 512.

[0220] That is, based on the structure shown in Figure 12 the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 can make the support arm 512 form a first groove 512a and a second groove 512b. Among them, the first groove 512a is a groove close to the first side plate 5121 and recessed towards the drop port 11 along the first direction; the second groove 512b is a groove close to the second side plate 5122 and recessed away from the drop port 11 along the first direction.

[0221] In addition, based on the above connection mode (1), structures similar to those shown in Figure 12Similar to the structure shown in (a), the connecting plate 5123 can also be connected to the second end 5121b and the third end 5122a respectively, and the connecting plate 5123 is provided with a bending portion. Thus, the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 is approximately S-shaped in the first cross section, and the first groove 512a recessed in the first direction towards the drop opening 11 is the groove close to the second side plate 5122, and the second groove 512b recessed in the first direction away from the drop opening 11 is the groove close to the first side plate 5121.

[0222] In some embodiments, based on the above connection mode (1), as shown in (a) of Figure 20 , the connecting plate 5123 can also be a flat plate, and the connecting plate 5123 is connected to the first end 5121a and the fourth end 5122b respectively. Thus, the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 is approximately N-shaped in the first cross section, and the support arm 512 can also be formed with the first groove 512a close to the first side plate 5121 and recessed in the first direction towards the drop opening 11, and the second groove 512b close to the second side plate 5122 and recessed in the first direction away from the drop opening 11.

[0223] In addition, similar to the structure shown in (a) of Figure 20 , one end of the connecting plate 5123 is connected to the second end 5121b of the first side plate 5121, and the other end of the connecting plate 5123 is connected to the third end 5122a of the second side plate 5122, and the connecting plate 5123 is a flat plate. Thus, the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 is approximately N-shaped in the first cross section, and the first groove 512a recessed in the first direction towards the drop opening 11 is the groove close to the second side plate 5122, and the second groove 512b recessed in the first direction away from the drop opening 11 is the groove close to the first side plate 5121.

[0224] Figure 12 Compared with the structure shown in (a) of Figure 20 , because Figure 12 the connecting plate 5123 in the structure shown in (a) has a bending portion, the support arm 512 can have stronger rigidity; because Figure 20 the connecting plate 5123 in the structure shown in (a) is a flat plate, the support arm 512 can have smaller weight and lower cost.

[0225] In some embodiments, based on the above connection mode (1), as shown in (b) of Figure 20 , the connecting plate 5123 is connected to the first end 5121a and the third end 5122a respectively.

[0226] Based on Figure 20The structure shown in (b) can make the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 approximately U-shaped in the first cross section, that is, the support arm 512 only forms a first groove 512a recessed in the first direction toward the delivery port 11.

[0227] In addition, with Figure 20 Similar to the structure shown in (b), the connecting plate 5123 can also be connected to the second end 5121b and the fourth end 5122b respectively. The structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 can also be roughly U-shaped in the first cross section. The support arm 512 can also form only the second groove 512b that is recessed away from the delivery port 11 along the first direction.

[0228] In some embodiments, based on the above connection method (2), such as Figure 20 As shown in (c), the connecting plate 5123 is connected between the first end 5121a, the third end 5122a and the fourth end 5122b respectively; thus, the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 makes the support arm 512 have a first groove 512a recessed towards the injection port 11 in the first direction and a second groove 512b recessed away from the injection port 11 in the first direction.

[0229] In addition, with Figure 20 Similar to the structure shown in (c), the connecting plate 5123 can also be connected between the second end 5121b, the third end 5122a, and the fourth end 5122b; or, the connecting plate 5123 can also be connected between the third end 5122a, the first end 5121a, and the second end 5121b; or, the connecting plate 5123 can also be connected between the fourth end 5122b, the first end 5121a, and the second end 5121b. These connection methods are all based on the above connection method (2), so that the support arm 512 has a first groove 512a recessed towards the injection port 11 in the first direction, and a second groove 512b recessed away from the injection port 11 in the first direction.

[0230] In some embodiments, based on the above connection method (3), such as Figure 20 As shown in (d), the connecting plate 5123 is connected between the first end 5121a and the second end 5121b, and between the third end 5122a and the fourth end 5122b, so that the structure formed by the first side plate 5121, the second side plate 5122 and the connecting plate 5123 is approximately H-shaped in the first cross section, and also so that the support arm 512 has a first groove 512a recessed towards the injection port 11 along the first direction, and a second groove 512b recessed away from the injection port 11 along the first direction.

[0231] In other embodiments, based onFigure 12 and Figure 20 The structure shown can also have reinforcing ribs provided on the connecting plate 5123. These reinforcing ribs are located in at least one of the first groove and the second groove, which can improve the rigidity of the support arm 512 and make it difficult for the support arm 512 to bend along the first direction.

[0232] In the above embodiments, since the grooves on the support arm 512 are formed by the first side plate, the second side plate, and the connecting plate 5123, the connection methods between the first side plate 5121, the second side plate 5122, and the connecting plate 5123 are different, which can form different numbers and positions of grooves on the support arm. Correspondingly, the support arm can be S-shaped, N-shaped, U-shaped, or H-shaped on the first cross section perpendicular to its extension direction, which can make the support arm different in terms of rigidity or weight to meet the application requirements of different clothing processing equipment.

[0233] As described in the previous embodiments, the distance between the first side plate 5121 and the second side plate 5122, that is, the width w of the support arm 512, is as follows: Figure 9 As shown. In some embodiments, the spacing between the first side plate 5121 and the second side plate 5122 is inconsistent along the extension direction of the support arm 512.

[0234] For example, along the extension direction of the support arm 512, the distance between the first side plate 5121 and the second side plate 5122 can decrease linearly or non-linearly, that is, the further away from the mounting part 511, the smaller the distance between the first side plate 5121 and the second side plate 5122; thereby, the weight of the support arm 512 can be reduced and the cost can be reduced while ensuring the rigidity of the support arm 512.

[0235] like Figure 11 As shown, the thickness of the support arm 512 is its dimension along the first direction. The thickness of the support arm 512 is inconsistent along its extension direction. This allows for minimizing the weight of the support arm 512 while maintaining its rigidity, thus reducing costs.

[0236] In some embodiments, such as Figure 11 As shown, the support arm 512 is thickest at the first end near the mounting part 511, with the maximum thickness denoted as H, and thinnest at the second end away from the mounting part 511, with the minimum thickness denoted as s.

[0237] In some embodiments, the thickness of the support arm 512 may decrease linearly or non-linearly from the first end to the second end.

[0238] In some embodiments, the minimum thickness s and the maximum thickness H of any support arm 512 satisfy the conditions: s < H, s > 25 mm, and H < 189 mm.

[0239] In some embodiments, the thickness of the mounting portion 511 is the same as the maximum thickness H of the support arm 512.

[0240] In a conventional design, the distance between the rear end surface of the cabinet 1 of the laundry treating apparatus and the rear wall 311 of the outer drum 31 is about 100 mm, for accommodating components such as the belt pulley 7.

[0241] In some embodiments, without changing the conventional design of 100 mm described above, the maximum thickness H of the support arm 512 can be set to 89 mm, and the remaining 11 mm distance is used to accommodate the belt pulley 7.

[0242] Since the greater the thickness, the greater the rigidity, in other embodiments, the depth of the outer drum 31 can be shortened by 100 mm, so that the distance between the rear end surface of the cabinet 1 and the rear wall 311 of the outer drum 31 becomes 200 mm (i.e. 100 mm more than the conventional design); accordingly, the maximum thickness H of the support arm 512 can be set to 189 mm, and the support arm 512 and the entire support structure 5 have greater rigidity and better anti-vibration performance, and are less likely to transmit vibrations.

[0243] In some embodiments, considering that the second end of the support arm 512 needs to be connected to the outer drum 31 by bolts, and the local rigidity of the second end of the support arm 512 should not be too small, the thickness at the second end should not be too small, and can be designed to be 25 mm, i.e. the minimum thickness s of the support arm 512 can be 25 mm.

[0244] In some embodiments, for any support arm 512, the ratio of the minimum thickness s to the maximum thickness H can be referred to as the thickness step ratio s / H, which satisfies the conditions: s / H > 13%, and s / H < 100%.

[0245] For example, when the minimum thickness s is set to 25 mm and the maximum thickness H is set to 189 mm, the thickness step ratio s / H is 13%; when s and H are the same, such as both being set to 25 mm or both being set to 189 mm or both being set to 89 mm, the thickness step ratio s / H is 100%.

[0246] As the thickness step ratio s / H gradually decreases from 100%, the bending rigidity of the support arm 512 made of the same weight m of material gradually increases; however, if the thickness step ratio s / H is too small, the minimum thickness s is too small, which will also affect the local rigidity of the second end of the support arm 512, and the maximum thickness H will also be limited by the internal space of the laundry treating apparatus.

[0247] Therefore, in an actual application scenario, the thickness step ratio s / H of the support arm 512 can be determined in combination with the space limitation inside the clothes treatment apparatus, the design and preparation cost caused by the internal structure modification of the clothes treatment apparatus, and the like, that is, the minimum thickness s and the maximum thickness H of the support arm 512 are determined.

[0248] In some embodiments, the thickness step ratio s / H of the support arm 512 can be set in a range of 28% ± 5%, which can meet the rigidity requirement of the support arm 512 and will not make H too large, without the need to change the size of the cabinet and the outer tube of the clothes treatment apparatus, and without additional modification cost.

[0249] For example, the minimum thickness s of the support arm 512 can be set to 25 mm, and the maximum thickness H can be set to 89 mm.

[0250] In this way, under the premise that the distance between the rear wall of the outer tube and the rear end surface of the cabinet is still 100 mm, the thickness step ratio s / H of the support arm 512 can reach 28%, which meets the rigidity requirement, and thus the overall rigidity and anti-vibration performance of the support structure 5 are ensured.

[0251] In some embodiments, after the support structure 5 is assembled with the outer tube 31 and the motor 4, the line between the center of mass of the support structure 5 and the center of mass of the motor 4 is parallel to the first plane determined by the second direction and the third direction, that is, the plane perpendicular to the first direction, that is, the plane perpendicular to the axial direction of the rotating shaft 33.

[0252] In this way, the line between the two centers of mass and the direction of gravity of the motor 4 are both parallel to the first plane, so that the force exerted on the support structure 5 by the weight of the motor 4 does not have a component perpendicular to the front and rear surfaces of the support structure 5, so that the support structure 5 is not subjected to unnecessary bending torque, and thus the stability of the outer tube 31 and the overall clothes treatment apparatus is ensured.

[0253] In some embodiments, to achieve the parallelism between the line between the center of mass of the support structure 5 and the center of mass of the motor 4 and the first plane, the support structure 5 can satisfy the following conditions:

[0254] The first middle cross section of the outer tube connecting portion 51 is coplanar with the second middle cross section of the motor connecting portion 52.

[0255] The first middle cross section is a cross section of the outer tube connecting portion 51 that passes through the thickness midpoint and is perpendicular to the first direction, and the second middle cross section is a cross section of the motor connecting portion 52 that passes through the thickness midpoint and is perpendicular to the first direction.

[0256] Reference will be made below to Figures 9 to 11Further elaboration is made on the conditions required to be met by the first mid-section, the second mid-section and the support structure.

[0257] Figure 9 For the front view of the support structure 5, the surface shown is referred to as the front surface of the support structure 5; correspondingly, Figure 10 For the rear view of the support structure 5, the surface shown is referred to as the rear surface of the support structure 5. On this basis, as Figure 11 shown, the front surface and the rear surface of the outer cylinder connecting part 51 are referred to as the first front surface and the first rear surface respectively, and the front surface and the rear surface of the motor connecting part 52 are referred to as the second front surface and the second rear surface respectively.

[0258] Continuing to refer to Figure 11 , the overall thickness of the outer cylinder connecting part 51, i.e. the distance between the first front surface and the first rear surface of the outer cylinder connecting part 51; since the thickness of the mounting part 511 of the outer cylinder connecting part 51 is the same as the maximum value H of the thickness of the support arm 512 thereof, the overall thickness of the outer cylinder connecting part 51 can also be represented as H. Correspondingly, the overall thickness of the motor connecting part 52, i.e. the distance between the second front surface and the second rear surface of the motor connecting part 52, can be represented as h.

[0259] Thus, the first mid-section of the outer cylinder connecting part 51, i.e. the section with a distance of H / 2 to the first front surface and also a distance of H / 2 to the first rear surface; and the second mid-section of the motor connecting part 52, i.e. the section with a distance of h / 2 to the second front surface and also a distance of h / 2 to the second rear surface.

[0260] In the above embodiment, in the case where the first mid-section and the second mid-section are coplanar, the two parts of the outer cylinder connecting part and the motor connecting part will not be misaligned in the axial direction of the rotating shaft 33 (i.e. the first direction), so that the force exerted on the support structure by the weight of the motor itself after the motor connecting part is connected with the motor in a matching manner will also be parallel to the mid-section, and will not generate a component force in the first direction (i.e. in the axial direction of the rotating shaft 33, i.e. perpendicular to the mid-section), so that no torque acting on the support structure in the first direction will be generated, unnecessary bending torque on the support structure is avoided, and the stability of the outer cylinder and the overall laundry treatment apparatus is ensured.

[0261] In some embodiments, in order to achieve that the line connecting the center of mass of the support structure 5 and the center of mass of the motor 4 is parallel to the first plane, the support structure 5 can also be configured to meet the following condition: the thickness of the outer cylinder connecting part 51 is the same as the thickness of the motor connecting part 52, i.e. H = h.

[0262] In the case of meeting H = h, the first middle section and the second middle section are coplanar, thereby avoiding the bending moment of the motor weight on the support structure, avoiding unnecessary bending torque of the support structure, and ensuring the stability of the outer drum and the overall stability of the laundry treatment apparatus.

[0263] In actual application scenarios, since the center of mass is not easy to measure, the geometric shapes of the outer drum connecting portion 51 and the motor connecting portion 52 can be designed to be symmetrical, for example, the outer drum connecting portion 51 can be designed to be symmetrical with respect to the first middle section, and the motor connecting portion 52 can be designed to be symmetrical with respect to the second middle section. In this way, the center of mass of the support structure 5 can be determined more easily by the geometric center of the outer drum connecting portion 51 and the geometric center of the motor connecting portion 52, thereby facilitating the determination of whether the line between the center of mass of the support structure 5 and the center of mass of the motor 4 is parallel to the first plane.

[0264] In some embodiments, with reference to Figure 9 The support structure 5 described above can further include an auxiliary connecting portion 53 for connecting or fixing other components, such as a water inlet pipe, a drain pipe, etc., provided in the cabinet of the laundry treatment apparatus. For example, as shown in Figure 9 The auxiliary connecting portion 53 is provided on one of the support arms of the outer drum connecting portion 51.

[0265] It should be noted that the position or shape of the auxiliary connecting portion 53 is not limited to Figure 9 In actual application scenarios, whether the auxiliary connecting portion 53 needs to be provided on the support structure 5, the position and shape of the auxiliary connecting portion 53, etc. can be determined according to the type, position, etc. of the components to be connected, and the present disclosure will not be illustrated one by one.

[0266] Figure 14 and Figure 15 respectively show the perspective view and the front view of the motor 4 assembled on the support structure 5 in some embodiments; Figure 16 show an exploded view of the motor 4 and the support structure 5 in some embodiments.

[0267] In some embodiments, with reference to Figure 8 , Figure 9 and Figure 11 The motor connecting portion 52 can include three connecting arms, i.e., two side connecting arms 521, 522 connected with the support arms 512, and a middle connecting arm 523 connected between the two side connecting arms.

[0268] The three connecting arms are connected with the motor 4 respectively, so that the motor 4 and the support structure 5 are connected in a three-point support mode; compared with the traditional two-point support mode, the stability of the motor 4 after assembly is stronger; compared with the traditional four-point support mode, the number of mounting points between the motor 4 and the outer cylinder 31 is smaller, so that the assembly efficiency can be improved and the cost can be saved.

[0269] In some embodiments, as shown in Figure 8 and Figure 9 , the edge side connecting arm 521 is provided with an edge side connecting part 5211 at one end away from the support arm 512, and the edge side connecting arm 522 is provided with an edge side connecting part 5221 at one end away from the support arm 512.

[0270] The middle connecting arm 523 is arranged between the two edge side connecting arms 521 and 522 and connected with the edge side connecting arms 521 and 522 respectively. The middle connecting arm 523 is provided with a middle connecting part 5231.

[0271] Referring to Figure 8 , Figure 9 , Figures 14 to 16 , three matching parts 42 can be arranged on the motor 4, which are connected with the edge side connecting parts 5211 and 5221 and the middle connecting part 5231 one by one, so as to realize the adaptive connection between the motor 4 and the motor connecting part 52, and realize the three-point support connection between the motor 4 and the motor connecting part 52.

[0272] In some embodiments, as shown in Figure 8 , Figure 9 and Figure 16 , the edge side connecting parts 5211 and 5221 and the middle connecting part 5231 can be designed as a ring structure; correspondingly, the matching parts 42 are designed as a column structure, which can be inserted into the edge side connecting parts 5211, the edge side connecting parts 5221 and the middle connecting part 5231 one by one, so as to realize the adaptive connection between the three connecting parts and the three matching parts.

[0273] In other embodiments, the three connecting parts can also be designed as a column structure, and the three matching parts are designed as a ring structure; during assembly, the three connecting parts are inserted into the three matching parts one by one, so as to realize the adaptive connection between the three connecting parts and the three matching parts.

[0274] In some embodiments, referring to Figures 14 to 16 , the edge side connecting parts 5211, 5221 and the middle connecting part 5231 and the corresponding matching parts 42 can be further provided with a damping part 43 to reduce the vibration force transmitted from the motor 4 to the outer cylinder 31.

[0275] The damping member 43 can be made of damping material, such as rubber, EVA (Ethylene Vinyl Acetate Copolymer), ACF (Artificial Cartilage Foam), PU (polyurethane), etc.

[0276] In some embodiments, referring to Figure 14 To ensure the stability of the connection between the motor 4 and the motor connecting portion 52, a fixing member 44 can be used to lock the intermediate connecting portion 5231 and the corresponding cooperating portion 42. For example, the fixing member 44 can be a bolt assembly.

[0277] In addition, the side connecting portions 5211 and 5221 and the corresponding cooperating portion 42 can not use a fixing member, but only use the damping member 43 to achieve elastic connection. In this way, during operation of the motor 4, the motor 4 can rotate slightly around the corresponding axis of the intermediate connecting portion 5231, which can buffer the vibration of the motor 4, reduce the transmission of vibration from the motor 4 to the outer barrel 31, and further improve the stability of the outer barrel 31 and the overall stability of the clothes treatment apparatus.

[0278] In some embodiments, referring to Figure 7 and Figure 11 As shown in the figures, the side wall 312 of the outer barrel 31 has a side wall extension 3121 that protrudes relative to the rear wall 311, so that each support arm 512 can be connected to the side wall extension 3121 by a bolt. Therefore, the side of the side connecting arms 521 and 522 that faces the drop opening 11 can be provided with a clearance portion 524 that is adapted to the side wall extension 3121.

[0279] In the above technical solution, the clearance portion 524 is provided on the two side connecting arms, which can accommodate the side wall extension 3121 of the outer barrel, so that the support arm connected to the side connecting arm can be connected to the outer wall of the outer barrel. In addition, it also helps to realize that the first middle section of the outer barrel connecting portion 51 and the second middle section of the motor connecting portion 52 are coplanar, so as to ensure that the line between the centroid of the motor 4 and the centroid of the support structure 5 is parallel to the first plane, avoiding unnecessary bending torque of the support structure 5, and further improving the overall stability of the clothes treatment apparatus.

[0280] In some embodiments, the relative positions of the above-mentioned side connecting portions 5211 and 5221 and the intermediate connecting portion 5231 in the three-dimensional space satisfy at least one of the following conditions:

[0281] The orthogonal projection on the first projection plane is in a triangular distribution;

[0282] The orthogonal projection on the second projection plane is in a triangular distribution.

[0283] The first projection plane is perpendicular to the first direction, and the second projection plane is perpendicular to the second direction.

[0284] It should be noted that, in combination with the foregoing embodiments, the second direction is the arrangement direction of the rotating shaft 33 and the output shaft 41, and the support structure 5 is assembled in the clothes treatment apparatus as shown in Figure 5 or Figure 6 The second direction is also the arrangement direction of the rotating shaft 33 and the intermediate connecting portion 5231.

[0285] The arrangement direction of the rotating shaft 33 and the intermediate connecting portion 5231 refers to the arrangement direction determined by a straight line that is perpendicular to the axis of the intermediate connecting portion 5231 and intersects the axis of the rotating shaft 33, and the axis of the intermediate connecting portion 5231 is parallel to the first direction.

[0286] Referring to Figure 17 and Figure 18 , the three projection points P1, P2, and P3 on the first projection plane can be obtained by projecting the center points M1, M2, and M3 of the side connecting portions 5211 and 5221 and the intermediate connecting portion 5231 along the first direction, respectively, and the three projection points P1, P2, and P3 are distributed in a triangular shape on the first projection plane, that is, the three projection points P1, P2, and P3 are not collinear on the first projection plane.

[0287] In addition, referring to Figure 17 and Figure 19 , the three projection points Q1, Q2, and Q3 on the second projection plane can be obtained by projecting the center points M1, M2, and M3 along the second direction, respectively, and the three projection points Q1, Q2, and Q3 are distributed in a triangular shape on the second projection plane, that is, the three projection points Q1, Q2, and Q3 are not collinear on the second projection plane.

[0288] Since the transmission between the output shaft 41 of the motor 4 and the rotating shaft 33 mounted on the inner drum 32 is achieved by the belt 6 and the belt pulley 7, the belt pulley 7 is sleeved on the outer periphery of the rotating shaft 33, and the belt 6 is sleeved on the outer peripheries of the output shaft 41 and the belt pulley 7; such a structure causes the belt 6 to have a pulling force on the output shaft 41 and the motor 4 that tends to rotate the rotating shaft 33, especially in the arrangement direction of the output shaft 41 and the rotating shaft 33, the belt 6 generates a greater pulling force on the output shaft 41 and the motor 4, which affects the stability of the assembled motor 4.

[0289] Therefore, in the above embodiments, the three projection points of the side connecting parts 5211, 5221 and the middle connecting part 5231 on the first projection plane are distributed in a triangle, or the three projection points on the second projection plane are distributed in a triangle. This ensures that the three connection points between the motor 4 and the motor mounting part 52 are distributed in a triangle. By utilizing the stability of the triangle, the connection stability between the motor 4 and the motor mounting part 52 is improved. It can also resist the bending stress borne by the support structure 5 caused by the tension of the belt 6, and reduce the stiffness requirement of the support structure 5.

[0290] In some embodiments, the relative positions of the three connecting parts can be set as follows: the distance between any two of the three projection points P1, P2, and P3 on the first projection plane is La, and La satisfies: 80 mm < La < 200 mm. For example, La can be 80 mm, 90 mm, 100 mm, 150 mm, 190 mm, etc.

[0291] Similarly, the distance between any two of the three projection points Q1, Q2, and Q3 of the above three connecting parts on the second projection plane is Lb, and Lb satisfies: 80 mm < Lb < 200 mm. For example, La can be 80 mm, 90 mm, 100 mm, 150 mm, 190 mm, etc.

[0292] In some embodiments, to further improve the stability of the motor 4 after assembly, the side connecting portions 5211 and 5221 can be symmetrical with respect to the middle connecting portion 5231.

[0293] like Figure 18 As shown, based on the above symmetrical design, the three projection points P1, P2, and P3 of the three connecting parts on the first projection plane are distributed in an isosceles triangle, that is, the distance L from projection point P3 to P1 is... P3-P1 The distance L from projection point P3 to P2 P3-P2 equal.

[0294] For example, the isosceles triangle distribution formed by P1, P2, and P3 can be set as follows: the length of the legs is L. P3-P1 =L P3-P2 =92mm, the base length is the distance L from projection point P1 to P2. P1-P2 =180mm.

[0295] For example, the isosceles triangle distribution formed by P1, P2 and P3 can be set as follows: the interior angle corresponding to P3 is 156°, and the interior angles corresponding to P1 and P2 are both 12°.

[0296] Similarly, such as Figure 19As shown, based on the above symmetric design, the three projection points Q1, Q2 and Q3 of the three connecting portions on the second projection plane are in isosceles triangle distribution, that is, the distance L Q3-Q1 from the projection point Q3 to Q1 is equal to the distance L Q3-Q2 from the projection point Q3 to Q2.

[0297] For example, for the isosceles triangle distribution formed by Q1, Q2 and Q3, the length of the leg L Q3-Q1 =92mm, and the length of the base L Q3-Q2 =180mm. Q1-Q2

[0298] For example, for the isosceles triangle distribution formed by Q1, Q2 and Q3, the internal angle corresponding to Q3 is 156°, and the internal angles corresponding to Q1 and Q2 are both 12°.

[0299] In the above embodiment, by limiting the value range of the distances La and Lb between any two projection points in the first projection plane or the second projection plane of the above edge-side connecting portions 5211 and 5221 and the middle connecting portion 5231, the distance between the above edge-side connecting portions 5211 and 5221 and the middle connecting portion 5231 is appropriate, that is, the distance between the three mounting points between the motor 4 and the motor connecting portion 52 is appropriate, which helps to improve the stability of the triangular structure formed by the three mounting points, and also provides sufficient mounting space for the assembly of the three mounting points, facilitating assembly.

[0300] In some embodiments, the edge-side connecting arm of the motor connecting portion 52 is provided with at least one of a first weight-reducing groove and a second weight-reducing groove. The first weight-reducing groove is a groove recessed in the first direction towards the drop opening 11; and the second weight-reducing groove is a groove recessed in the first direction away from the drop opening 11.

[0301] In the above embodiment, the edge-side connecting arm has a weight-reducing groove recessed in the first direction, rather than being simply flat, which can not only reduce the weight and cost of the edge-side connecting arm, but also make the edge-side connecting arm have strong bending stiffness in the first direction, thereby improving the natural frequency of the edge-side connecting arm and the anti-vibration performance, ensuring stable connection between the motor 4 and the motor connecting portion 52, and weakening or even isolating the vibration transmission from the motor 4 to the outer cylinder 31, thereby improving the overall stability of the clothes treatment equipment.

[0302] For example, as shown in Figure 9 , the motor connecting portion 52 is cut along the line D-D to obtain a cross-sectional view as shown in Figure 13 , which is a schematic view of the second cross section corresponding to the motor connecting portion 52. The second cross section is perpendicular to the second direction.

[0303] ​With reference to Figure 13 In some embodiments, the side connecting arms 521 and 522 are each provided with a first weight-reducing groove 52a recessed toward the drop opening 11 in the first direction and a second weight-reducing groove 52b recessed away from the drop opening 11 in the first direction.

[0304] Since the side surfaces of the first weight-reducing groove 52a and the second weight-reducing groove 52b are substantially parallel to the first direction, the side connecting arms 521 and 522 can have strong bending stiffness in the first direction. In combination with the weight-reducing grooves, the side connecting arms 521 and 522 can have a higher natural frequency than the flat connecting arms, thereby improving the vibration resistance of the entire support structure 5.

[0305] In some embodiments, at least one of the first weight-reducing groove and the second weight-reducing groove can be further provided with a reinforcing rib to further improve the stiffness of the side connecting arms.

[0306] For example, with reference to Figure 13 The first weight-reducing groove 52a is provided with a reinforcing rib 52c, so that the first weight-reducing groove 52a is substantially double-U-shaped in the second cross section. The second weight-reducing groove 52b is not provided with a reinforcing rib, so that the second weight-reducing groove 52b is substantially n-shaped (i.e., inverted U-shaped) in the second cross section.

[0307] In different embodiments, the number and position of the reinforcing ribs in the weight-reducing grooves of the side connecting arms are different, and the shape of the side connecting arms in the second cross section is also different, and the weight and stiffness of the side connecting arms can also be different, and the natural frequency of the entire support structure 5 can also be different.

[0308] In addition, the structures of the side connecting arms 521 and 522 can also be designed according to the related structural features of the support arm 512 in the foregoing embodiments. Based on the related embodiments of the support arm 512, those skilled in the art can obtain other side connecting arms with different structures through simple reasoning according to the actual needs of the clothes treatment apparatus, and the embodiments of the present disclosure will not be listed one by one. Figure 13

[0309] In the foregoing embodiments, the structure of the side connecting arms is designed to have strong stiffness while reducing weight, thereby improving the natural frequency and the vibration resistance of the motor connecting portion 52 and the entire support structure 5, weakening or even isolating the vibration transmission from the motor to the outer drum, and improving the overall stability of the clothes treatment apparatus.

[0310] ​It should be noted that the technical features involved in the different embodiments of the present disclosure described above can be combined with each other as long as there is no conflict, to form different technical solutions. Those skilled in the art can select appropriate technical solutions according to actual application scenarios, and the present disclosure will not be repeated here.

[0311] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present disclosure, and not to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present disclosure, and they should be covered in the scope of the claims and the description of the present disclosure. The present disclosure is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A laundry treating apparatus, characterized by, The laundry treating apparatus comprises: a cabinet provided with a drop opening; an outer cylinder arranged inside the cabinet, the outer cylinder having a rear wall away from the drop opening and a side wall surrounding the outer periphery of the rear wall; an inner cylinder rotatably arranged inside the outer cylinder through a rotating shaft; a motor arranged outside the outer cylinder, the motor being configured to drive the inner cylinder to rotate; a support structure configured to support the outer cylinder and connect the motor to the outer cylinder through the support structure; the support structure comprises: a motor connecting portion configured to be connected with the motor; an outer cylinder connecting portion arranged on the side of the rear wall of the outer cylinder away from the drop opening, the outer cylinder connecting portion being configured to be connected between the motor connecting portion and the outer cylinder; the outer cylinder connecting portion comprises: a mounting portion penetrated by the rotating shaft; a plurality of support arms, each of the support arms extending to the side wall of the outer cylinder from the mounting portion along different radial directions of the rotating shaft and being connected with the side wall of the outer cylinder; the support arm comprises: oppositely arranged first and second side plates; a connecting plate connected between the first and second side plates; a structure formed by the first and second side plates and the connecting plate, at least one of a first groove and a second groove being formed on the support arm; the first groove is a groove recessed towards the drop opening along a first direction; the second groove is a groove recessed away from the drop opening along the first direction; wherein the first direction is the axial direction of the rotating shaft.

2. The laundry treating apparatus according to claim 1, wherein the first side plate has a first end and a second end oppositely arranged along the first direction; the second side plate has a third end and a fourth end oppositely arranged along the first direction; the connecting mode between the first side plate, the second side plate and the connecting plate satisfies any one of the following conditions: one end of the connecting plate is connected to the first end, and the other end of the connecting plate is connected to the third end; one end of the connecting plate is connected to the first end, and the other end of the connecting plate is connected between the third end and the fourth end; one end of the connecting plate is connected between the first end and the second end, and the other end of the connecting plate is connected between the third end and the fourth end. 3.The laundry treating apparatus according to claim 1, wherein, the thickness of the support arm is inconsistent in the extension direction of the support arm; the thickness of the support arm is the dimension of the support arm along the first direction; the minimum thickness s and the maximum thickness H of the support arm satisfy: s < H, s > 25 mm, and H < 189 mm; the ratio s / H of the minimum thickness s and the maximum thickness H satisfies: s / H > 13%, and s / H < 100%.

4. The laundry treating apparatus according to claim 1, wherein a first middle section of the outer cylinder connecting portion is coplanar with a second middle section of the motor connecting portion; wherein the first middle section passes through the thickness midpoint of the outer cylinder connecting portion and is perpendicular to the first direction, and the second middle section passes through the thickness midpoint of the motor connecting portion and is perpendicular to the first direction. 5.The laundry treating apparatus according to any one of claims 1-4, wherein, the motor connecting portion comprises: two side connecting arms connected to the support arms; an intermediate connecting arm connected between the two side connecting arms; at least one of a first weight-reducing groove and a second weight-reducing groove is arranged on the side connecting arm; the first weight-reducing groove is a groove recessed towards the drop opening along the first direction; the second weight-reducing groove is a groove recessed away from the drop opening along the first direction.

6. The laundry treating apparatus of claim 5, wherein an end of the side connecting arm away from the support arm is provided with a side connecting portion; the intermediate connecting arm is provided with an intermediate connecting portion; the two side connecting portions and the intermediate connecting portion are respectively connected with the motor and satisfy at least one of the following conditions: orthogonal projections on a first projection plane are in a triangular distribution; orthogonal projections on a second projection plane are in a triangular distribution; wherein the first projection plane is perpendicular to the first direction, and the second projection plane is perpendicular to a second direction, and the second direction is an arrangement direction of the rotation shaft and the intermediate connecting portion.

7. The laundry treating apparatus of claim 5, wherein a side of the side connecting arm facing the drop opening is provided with a avoiding portion, and the avoiding portion is matched with a side wall of the outer drum. 8.A laundry treating apparatus, characterized by, including: a cabinet provided with a drop opening; an outer drum arranged inside the cabinet; the outer drum has a rear wall away from the drop opening and a side wall surrounding an outer periphery of the rear wall; an inner drum rotatably arranged inside the outer drum through a rotation shaft; a motor arranged outside the outer drum, and the motor is configured to drive the inner drum to rotate; a support structure configured to support the outer drum, and the motor is connected to the outer drum through the support structure; the support structure includes: a motor connecting portion configured to be connected with the motor; an outer drum connecting portion arranged on a side of the rear wall of the outer drum away from the drop opening, and the outer drum connecting portion is configured to be connected between the motor connecting portion and the outer drum; the outer drum connecting portion includes: a mounting portion penetrated by the rotation shaft; a plurality of support arms, each of the support arms extends to the side wall of the outer drum from the mounting portion along different radial directions of the rotation shaft, and is connected with the side wall of the outer drum; in the extension direction of the support arm, the thickness of the support arm is inconsistent; a minimum thickness s and a maximum thickness H of the support arm satisfy: s < H, and s > 25 mm, and H < 189 mm; a ratio s / H of the minimum thickness s and the maximum thickness H satisfies: s / H > 13%, and s / H < 100%; wherein the thickness of the support arm is a dimension of the support arm along a first direction; and the first direction is an axial direction of the rotation shaft. 9.A laundry treating apparatus, characterized by, including: a cabinet provided with a drop opening; an outer drum arranged inside the cabinet; the outer drum has a rear wall away from the drop opening and a side wall surrounding an outer periphery of the rear wall; an inner drum rotatably arranged inside the outer drum through a rotation shaft; a motor arranged outside the outer drum, and the motor is configured to drive the inner drum to rotate; A support structure configured to support the outer cylinder and connect the motor to the outer cylinder through the support structure; The support structure comprises: A motor connecting portion configured to be connected to the motor; An outer cylinder connecting portion provided on a side of the rear wall of the outer cylinder away from the drop opening, the outer cylinder connecting portion being configured to be connected between the motor connecting portion and the outer cylinder; The outer cylinder connecting portion comprises: A mounting portion penetrated by the rotating shaft; A plurality of support arms, each of the support arms extending to the side wall of the outer cylinder along different radial directions of the rotating shaft and being connected to the side wall of the outer cylinder; A first middle cross section of the outer cylinder connecting portion is coplanar with a second middle cross section of the motor connecting portion; The first middle cross section passes through a thickness midpoint of the outer cylinder connecting portion and is perpendicular to a first direction, the second middle cross section passes through a thickness midpoint of the motor connecting portion and is perpendicular to the first direction, and the first direction is an axial direction of the rotating shaft. 10.A laundry treating apparatus, characterized by, Comprise: A box body provided with a drop opening; An outer cylinder provided inside the box body, the outer cylinder having a rear wall away from the drop opening and a side wall surrounding an outer periphery of the rear wall; An inner cylinder rotatably provided inside the outer cylinder through a rotating shaft; A motor provided outside the outer cylinder, the motor being configured to drive the inner cylinder to rotate; A support structure configured to support the outer cylinder and connect the motor to the outer cylinder through the support structure; The support structure comprises: A motor connecting portion configured to be connected to the motor; An outer cylinder connecting portion provided on a side of the rear wall of the outer cylinder away from the drop opening, the outer cylinder connecting portion being configured to be connected between the motor connecting portion and the outer cylinder; The outer cylinder connecting portion comprises: A mounting portion penetrated by the rotating shaft; A plurality of support arms, each of the support arms extending to the side wall of the outer cylinder along different radial directions of the rotating shaft and being connected to the side wall of the outer cylinder; The motor connecting portion comprises: Two side connecting arms connected to the support arms; A middle connecting arm connected between the two side connecting arms; At least one of a first weight-reducing groove and a second weight-reducing groove is provided on the side connecting arm; The first weight-reducing groove is a groove recessed toward the drop opening along a first direction; The second weight-reducing groove is a groove recessed away from the drop opening along the first direction; The first direction is an axial direction of the rotating shaft.

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