Outer barrel assembly and washing machine with same

Abstract

The invention discloses an outer barrel assembly and a washing machine with the outer barrel assembly, the outer barrel assembly comprises an outer barrel, the inner part of the outer barrel is provided with an accommodating cavity, and the outer surface of the outer barrel is provided with a plurality of silencing cavities; the back plate is arranged on the outer surface of the outer barrel, one or more micropore areas are formed in the back plate, a plurality of micropores penetrating through the back plate in the thickness direction are formed in the micropore areas, and at least one micropore area corresponds to at least one silencing cavity and covers the silencing cavity. According to the outer barrel assembly designed by the invention, the outer surface of the bottom plate and the back plate are respectively provided with the plurality of silencing cavities and the one or more micropore areas, and the at least one micropore area is arranged corresponding to the at least one silencing cavity and covers the silencing cavity, so that the noise during working of the washing machine is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present invention relates to the field of washing machines, and in particular to an outer barrel assembly and a washing machine having the same. Background Art

[0002] In the related art, a washing machine generates noise when it is working. The noise mainly includes the noise generated when the inner drum rotates, the noise generated when the motor runs, and the vibration noise of the outer drum when the inner drum rotates and causes the outer drum to vibrate. The washing machine generates a relatively loud noise when working, which will affect the user's rest and work, reduce the user's experience, and easily lead to customer complaints. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide an outer barrel assembly. The outer barrel assembly designed according to the present invention has a plurality of muffler cavities and one or more microporous areas formed on the outer surface of the bottom plate and the back plate, respectively, and at least one microporous area is arranged corresponding to and covers at least one muffler cavity, thereby reducing the noise of the washing machine when it is working and improving the user experience.

[0004] The present invention also provides a washing machine having the outer tub assembly.

[0005] The outer barrel assembly according to the present invention includes: an outer barrel, a accommodating cavity is formed inside the outer barrel, and a plurality of silencer cavities are formed on the outer surface of the outer barrel; a back plate, the back plate is arranged on the outer surface of the outer barrel, and one or more microporous areas are formed on the back plate, and a plurality of micropores are formed in the microporous area and penetrate the back plate in the thickness direction, and at least one of the microporous areas is arranged corresponding to at least one of the silencer cavities and covers the silencer cavities.

[0006] According to the outer barrel assembly of the present invention, by arranging a plurality of silencer cavities on the outer surface of the outer barrel and arranging one or more microporous areas on the back plate, and at least one microporous area is arranged corresponding to and covers at least one silencer cavity, the back plate can not only isolate noise, but also the micropores and silencer cavities in the plurality of microporous areas on the back plate can consume the sound wave energy of the noise, thereby reducing the noise when the washing machine is working and improving the user experience.

[0007] According to some embodiments of the present invention, the outer barrel includes: a bottom plate; and side plates, wherein the side plates are arranged on the outer peripheral edge of the bottom plate to define the accommodating cavity; wherein a plurality of the muffler cavities are formed on the surface of the bottom plate facing away from the accommodating cavity, and the back plate is connected to the bottom plate.

[0008] According to some embodiments of the present invention, the bottom plate is disc-shaped, and a surface of the bottom plate facing away from the accommodating cavity is formed with a plurality of reinforcing ribs staggered with each other to define the muffler cavity on the bottom plate.

[0009] According to some embodiments of the present invention, the reinforcing ribs include: a first rib, wherein the first rib is configured as a plurality of ribs extending in the radial direction, and the plurality of the first ribs are spaced apart in the circumferential direction; a second rib, wherein the second rib is configured as a plurality of ribs extending in the circumferential direction, and the plurality of the second ribs are spaced apart in the radial direction and intersect with the first rib, and two adjacent first ribs and two adjacent second ribs jointly define the muffler cavity.

[0010] According to some embodiments of the present invention, the thickness of the reinforcing rib is h1, and the thickness of the back plate is h2, satisfying: h1 / h2≥4.

[0011] According to some embodiments of the present invention, the thickness h1 of the reinforcing rib is ≥ 20 mm, and the thickness h2 of the back plate is ≤ 5 mm.

[0012] According to some embodiments of the present invention, the back plate is configured in a ring shape, and the microporous area is configured as a sector-shaped area corresponding one-to-one to the muffler cavity.

[0013] According to some embodiments of the present invention, the back plate is constructed as a plurality of concentrically arranged annular plates with different radii, and a plurality of the microporous areas are arranged on the circumference of each of the annular plates.

[0014] According to some embodiments of the present invention, the area of ​​the surface of the back plate facing away from the bottom plate is S1, and the total area of ​​the micropores in the plurality of micropore areas is S2, satisfying: S2 / S1≤3%.

[0015] According to some embodiments of the present invention, the diameter of the micropores in each micropore area is d, satisfying: d≤1 mm.

[0016] According to some embodiments of the present invention, the back plate includes: a first split part, the first split part is constructed in a ring shape, and the center of the first split part defines an avoidance hole; a second split part, the second split part is constructed in a ring shape concentrically arranged with the first split part, and the second split part is detachably connected to the first split part; wherein the first split part and the second split part are respectively provided with a plurality of the microporous areas corresponding to each other in the circumferential direction.

[0017] A washing machine according to another embodiment of the present invention will be briefly described below.

[0018] The washing machine according to the present invention comprises the outer tub assembly described in any one of the above embodiments. Since the washing machine according to the present invention is provided with the outer tub assembly of the above embodiments, the noise generated by the washing machine during operation is small.

[0019] In summary, according to the outer barrel assembly involved in the present invention, a plurality of silencer cavities are arranged on the outer surface of the outer barrel, and one or more microporous areas are arranged on the back plate thereof, and at least one microporous area is arranged corresponding to and covers at least one silencer cavity, and the plurality of micropores in the microporous area and the silencer cavity can consume the sound wave energy of the noise generated when the washing machine is working, reduce the noise when the washing machine is working, and improve the user experience; a plurality of interlaced reinforcing ribs are arranged on the side of the bottom plate away from the accommodating cavity, and the thickness of the reinforcing ribs h1≥20mm can enhance the structural strength of the bottom plate while improving the silencer. The sound-absorbing effect of the sound cavity, the thickness of the back plate h2≤5mm can increase the volume of the installation space for installing the motor and other electrical components while ensuring the sound-absorbing effect of the sound-absorbing hole, which is convenient for the layout and installation of the motor and other electrical components; the ratio of the total area S2 of the plurality of microholes to the area S1 of the surface of the back plate away from the bottom plate satisfies: S2 / S1≤3%, which reduces the low-frequency noise when the washing machine is working; the diameter of the microhole is d≤1mm, which can make the microhole mainly suitable for consuming the sound wave energy of the low-frequency noise, thereby further reducing the low-frequency noise when the washing machine is working.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a front view of an outer barrel according to an embodiment of the present invention;

[0023] Figure 2 is a front view of a back plate according to an embodiment of the present invention;

[0024] Figure 3 is a schematic diagram of the connection between the outer barrel and the back plate according to an embodiment of the present invention;

[0025] Figure 4 is a cross-sectional view of an outer barrel assembly according to an embodiment of the present invention.

[0026] Reference numerals: 1. outer barrel assembly;

[0027] 10. outer barrel; 11. bottom plate; 111. muffler chamber; 112. first rib; 113. second rib; 12. side plate; 13. accommodating chamber;

[0028] 20. Back plate; 21. Microporous area; 22. First sub-body portion; 23. Second sub-body portion. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the related art, a washing machine generates noise when it is working. The noise mainly includes the noise generated when the inner drum rotates, the noise generated when the motor runs, and the vibration noise of the outer drum when the inner drum rotates and causes the outer drum to vibrate. The washing machine generates a relatively loud noise when working, which will affect the user's rest and work, reduce the user's experience, and easily lead to customer complaints.

[0035] Reference below Figure 1-Figure 4 An outer barrel assembly 1 according to an embodiment of the present invention is described.

[0036] like Figure 1-Figure 4 As shown, the outer barrel assembly 1 according to the present invention includes: an outer barrel 10 and a back plate 20, the outer barrel 10 is formed with a accommodating cavity 13, the outer surface of the outer barrel 10 is formed with a plurality of muffler cavities 111, the back plate 20 is arranged on the outer surface of the outer barrel 10, one or more microporous areas 21 are formed on the back plate 20, a plurality of micropores penetrating the back plate 20 in the thickness direction are formed in the microporous area 21, at least one microporous area 21 is arranged corresponding to at least one muffler cavity 111 and covers the muffler cavity 111.

[0037] In some embodiments, a accommodating cavity 13 is formed inside the outer barrel 10, and the inner barrel of the washing machine is suitable for rotating in the accommodating cavity 13 to wash or dehydrate clothes. A plurality of silencer cavities 111 are formed on the surface of the outer barrel 10 away from the accommodating cavity 13, and the plurality of silencer cavities 111 are open facing away from the accommodating cavity 13. The back plate 20 is connected to the outer barrel 10 and arranged on the outer surface of the outer barrel 10 to cover and close the plurality of silencer cavities 111. One or more microporous areas 21 are formed on the back plate 20, and a plurality of micropores are formed in the microporous area 21. Each micropore penetrates the back plate 20 in the thickness direction of the back plate 20, and at least one microporous area 21 is arranged corresponding to at least one silencer cavity 111.

[0038] It is understandable that the main sources of noise generated by the washing machine when it is working are the following: the noise generated when the inner barrel rotates; the noise generated when the motor is running; the noise generated by the outer barrel 10 when the inner barrel rotates and drives the outer barrel 10 to vibrate through the drum shaft. Therefore, through the above-mentioned setting, when the washing machine is working, the noise generated when the motor is running will enter the muffler cavity 111 through the micropores of each micropore area 21, and the micropores can consume the sound wave energy of the noise and the muffler cavity 111 can also consume the sound wave energy of the noise, so that the outside can feel that the noise from the motor is small; the noise generated when the inner barrel rotates and the noise generated when the outer barrel 10 vibrates will enter the accommodating cavity 13 and the muffler cavity 111 in turn, and then reach the side of the back plate 20 away from the accommodating cavity 13 from the micropores. During the propagation of the noise, the micropores will consume the sound wave energy of the noise. At the same time, after the noise enters the muffler cavity 111, the back plate 20 can play a sound insulation effect, so that the outside can feel that the noise from the rotation of the inner barrel and the vibration of the outer barrel 10 are small.

[0039] According to the outer barrel assembly 1 involved in the present invention, by arranging a plurality of silencer cavities 111 on the outer surface of the outer barrel 10 and arranging one or more microporous areas 21 on the back plate 20, and at least one microporous area 21 is arranged corresponding to and covers at least one silencer cavity 111, the back plate 20 can not only isolate noise, but also the micropores of the plurality of microporous areas 21 on the back plate 20 and the silencer cavity 111 can consume the sound wave energy of the noise, thereby reducing the noise when the washing machine is working and improving the user experience.

[0040] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the outer barrel 10 includes: a bottom plate 11 and a side plate 12, wherein the side plate 12 is arranged on the outer periphery of the bottom plate 11 to define a accommodating cavity 13; wherein a plurality of muffler cavities 111 are formed on the surface of the bottom plate 11 away from the accommodating cavity 13, and the back plate 20 is connected to the bottom plate 11.

[0041] In some embodiments, the side plate 12 is arranged on the outer periphery of the bottom plate 11 and extends away from the bottom plate 11 in the axial direction, so that the bottom plate 11 and the side plate 12 jointly define a accommodating chamber 13, and multiple muffler chambers 111 are formed on the surface of the bottom plate 11 away from the accommodating chamber 13. The back plate 20 is connected to the bottom plate 11 and is suitable for closing the multiple muffler chambers 111. The side of the back plate 20 away from the accommodating chamber 13 is configured as an installation space, and a motor and other electrical components are arranged in the installation space. The output shaft of the motor passes through the outer barrel 10 and extends into the accommodating chamber 13 and is connected to the inner barrel. Therefore, the muffler chamber 111 can be made to be more convenient to use. The sound cavity 111 and the microporous area 21 are located between the accommodating cavity 13 and the installation space. When the washing machine is working, the noise in the installation space will propagate toward the accommodating cavity 13 (the noise in the installation space is mainly the noise generated when the motor is running), and the noise in the accommodating cavity 13 will propagate toward the installation space (the noise in the accommodating cavity 13 is mainly the noise generated when the inner barrel rotates and the noise generated when the outer barrel 10 vibrates). The multiple micropores in the microporous area 21 on the back plate 20 and the multiple silencer cavities 111 on the bottom plate 11 can consume the sound wave energy of the noise when the noise propagates, thereby reducing the noise when the washing machine is working.

[0042] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the bottom plate 11 is disc-shaped, and a plurality of reinforcing ribs staggered with each other are formed on the surface of the bottom plate 11 away from the accommodating cavity 13 to define a muffler cavity 111 on the bottom plate 11. In some embodiments, a plurality of reinforcing ribs are formed on the surface of the back plate 20 away from the accommodating cavity 13, and the plurality of reinforcing ribs are staggered with each other and define a plurality of muffler cavities 111 together with the bottom plate 11, and the plurality of reinforcing ribs are suitable for enhancing the structural strength of the bottom plate 11, thereby improving the durability of the outer tub 10, and further extending the service life of the washing machine.

[0043] In some embodiments, the back panel 20 is disposed on the side of the bottom plate 11 away from the accommodating cavity 13 and is suitable for being connected to the bottom plate 11; in other embodiments, the back panel 20 is disposed on the side of the bottom plate 11 away from the accommodating cavity 13 and is connected to the reinforcing ribs; in some other embodiments, the back panel 20 is disposed on the side of the bottom plate 11 away from the accommodating cavity 13 and is connected to the bottom plate 11 and the reinforcing ribs, thereby making the connection stability between the back panel 20 and the bottom plate 11 higher.

[0044] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the reinforcing ribs include: a first rib 112 and a second rib 113, the first rib 112 is constructed as a plurality of first ribs 112 extending in the radial direction, and the plurality of first ribs 112 are spaced apart in the circumferential direction, the second rib 113 is constructed as a plurality of second ribs 113 extending in the circumferential direction, and the plurality of second ribs 113 are spaced apart in the radial direction and intersect with the first rib 112, and two adjacent first ribs 112 and two adjacent second ribs 113 jointly define the muffler cavity 111.

[0045] It can be understood that a plurality of first ribs 112 are formed on the surface of the back plate 20 away from the accommodating cavity 13, and the plurality of first ribs 112 are distributed at intervals along the circumference of the bottom plate 11 and extend in the radial direction of the bottom plate 11 respectively, and the plurality of first ribs 112 are suitable for enhancing the structural strength of the bottom plate 11. A plurality of second ribs 113 are also formed on the surface of the back plate 20 away from the accommodating cavity 13, and the plurality of second ribs 113 are distributed at intervals in the radial direction of the bottom plate 11, and the plurality of second ribs 113 extend in the circumferential direction of the bottom plate 11 and intersect with the plurality of first ribs 112 respectively, so as to further enhance the structural strength of the bottom plate 11. At the same time, two adjacent first ribs 112, two adjacent second ribs 113 and the bottom plate 11 jointly define a muffler cavity 111.

[0046] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the thickness of the reinforcing rib is h1, and the thickness of the back plate 20 is h2, satisfying: h1 / h2≥4, the thickness of the reinforcing rib h1≥20mm, and the thickness of the back plate 20 h2≤5mm.

[0047] In some embodiments, the thickness of the reinforcing rib is equal to the depth of the muffler cavity 111, and the greater the depth of the muffler cavity 111, the better the effect of the muffler cavity 111 in consuming the sound wave energy of the noise, so that the thickness of the reinforcing rib h1 ≥ 20 mm can make the muffler cavity 111 have better muffler capability and at the same time make the structural strength of the bottom plate 11 higher. It can be understood that the installation space is provided with a motor and other electrical components, and the thickness of the back plate 20 h2 ≤ 5 mm can increase the volume of the installation space while ensuring the muffler capability of the outer barrel assembly 1, thereby facilitating the layout and installation of the motor and other electrical components.

[0048] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the back plate 20 is constructed as a ring, and the microporous area 21 is constructed as an area corresponding to the silencer cavity 111 one by one, for example, it can be a fan-shaped area. It can be understood that the two adjacent first ribs 112, the two adjacent second ribs 113 and the back plate 20 jointly define the fan-shaped silencer cavity 111. The microporous area 21 is constructed as a fan-shaped area to adapt to the setting of the fan-shaped silencer cavity 111, which can increase the passing rate of noise entering the silencer cavity 111, thereby enhancing the silencer effect of the outer barrel assembly 1. In some embodiments, a plurality of first ribs 112, a second rib 113 and the bottom plate 11 jointly define a plurality of silencer cavities 111, and the second ribs 113 extend in the circumferential direction. Thus, in the radial direction of the bottom plate 11, an annular silencer area is jointly defined between two second ribs 113 located at both ends of the bottom plate 11. The back plate 20 is constructed in an annular shape to adapt to the setting of the silencer area, so that the back plate 20 can fit the silencer area more closely and is suitable for closing the plurality of silencer cavities 111 in the silencer area, thereby ensuring the function of the back plate 20 and saving the material of the back plate 20, thereby reducing the production cost of the outer barrel assembly 1.

[0049] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the back plate 20 is constructed as a plurality of annular plates arranged concentrically and having different radii, and the plurality of annular plates are all arranged concentrically, and a plurality of microporous areas 21 are arranged on the circumference of each annular plate. In some embodiments, the plurality of second ribs 113 are spaced apart in the radial direction of the bottom plate 11, thereby defining annular areas with different radii between two adjacent second ribs 113, and the plurality of annular plates with different radii are respectively suitable for covering the corresponding annular areas, and when an annular plate is damaged, only the corresponding annular plate needs to be replaced, avoiding replacement of the entire back plate 20, thereby reducing the maintenance cost of the outer barrel assembly 1.

[0050] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the area of ​​the surface of the back plate 20 facing away from the bottom plate 11 is S1, and the total area of ​​the micropores of the plurality of micropore areas 21 is S2, satisfying: S2 / S1≤3%.

[0051] In some embodiments, the surface area of ​​the back plate 20 facing away from the bottom plate 11 is S1, the sum of the cross-sectional areas of all the micropores on the back plate 20 is S2, and S2 / S1≤3% can make the micropores in the micropore area 21 on the back plate 20 mainly suitable for consuming the sound wave energy of low-frequency noise (low-frequency noise mainly includes noise with a frequency less than or equal to 500 Hz), thereby reducing the low-frequency noise when the washing machine is working.

[0052] According to some embodiments of the present invention, Figure 1-Figure 4As shown, the diameter of the micropores in each micropore area 21 is d, satisfying: d≤1mm. It can be understood that the wavelengths of noises of different frequencies are different. By setting the diameter of the micropores d≤1mm, the micropores can be mainly suitable for consuming the sound wave energy of low-frequency noise, thereby further reducing the low-frequency noise when the washing machine is working.

[0053] According to some embodiments of the present invention, Figure 1-Figure 4 As shown, the back plate 20 includes: a first split portion 22 and a second split portion 23, the first split portion 22 is configured as a ring, and the center of the first split portion 22 defines an avoidance hole, the bottom plate 11 is provided with a through hole concentric with the avoidance hole, the avoidance hole is suitable for avoiding the motor, at least part of the motor is accommodated in the avoidance hole, and the output shaft of the motor passes through the through hole and extends into the accommodating cavity 13 and is suitable for connecting with the inner barrel, thereby, the motor can control the inner barrel to rotate to wash or dehydrate the clothes, the second split portion 23 is configured as a ring concentrically arranged with the first split portion 22, and the second split portion 23 is detachably connected to the first split portion 22; wherein the first split portion 22 is configured as a ring concentrically arranged with the first split portion 22, and the second split portion 23 is detachably connected to the first split portion 22; The body 22 and the second split portion 23 are respectively provided with a plurality of microporous areas 21 corresponding to each other in the circumferential direction. It can be understood that the first split portion 22 and the second split portion 23 are detachably connected. When the first split portion 22 or the second split portion 23 is damaged, only the first split portion 22 and the second split portion 23 need to be replaced, thereby avoiding replacement of the entire back plate 20 and reducing the maintenance cost of the washing machine. At the same time, the first split portion 22 and the second split portion 23 are connected and then installed on the bottom plate 11, which can improve the connection efficiency between the back plate 20 and the bottom plate 11, thereby improving the assembly efficiency of the outer barrel assembly 1, and further improving the production efficiency of the washing machine.

[0054] In some embodiments of the present invention, the outer barrel assembly 1 includes: a bottom plate 11, a side plate 12 and a back plate 20, the side plate 12 is arranged on the outer circumferential edge of the bottom plate 11 and extends away from the bottom plate 11 in the axial direction, so that the bottom plate 11 and the side plate 12 jointly define a accommodating chamber 13, and the inner barrel of the washing machine is suitable for rotating in the accommodating chamber 13 to wash or dehydrate the clothes, and a plurality of first ribs 112 and second ribs 113 are formed on the surface of the bottom plate 11 away from the accommodating chamber 13, and the plurality of first ribs 112 are distributed at intervals along the circumference of the bottom plate 11 and extend in the radial direction of the bottom plate 11 respectively, and the plurality of second ribs 113 are distributed at intervals in the radial direction of the bottom plate 11, and the plurality of second ribs 113 extend in the circumferential direction of the bottom plate 11 and intersect with the plurality of first ribs 112 respectively, and the two adjacent first ribs 112, the two adjacent second ribs 113 and the bottom plate 11 are connected together. A fan-shaped muffler cavity 111 is defined together, and a plurality of first ribs 112, a plurality of second ribs 113 and the bottom plate 11 jointly define a plurality of fan-shaped muffler cavities 111 open away from the accommodating cavity 13. The back plate 20 is connected to the bottom plate 11 and arranged on the side of the bottom plate 11 away from the accommodating cavity 13 to close the plurality of muffler cavities 111. A plurality of fan-shaped microporous areas 21 corresponding to the plurality of muffler cavities 111 are formed on the back plate 20. A plurality of micropores are formed in the microporous area 21, and each micropore passes through the back plate 20 in the thickness direction of the back plate 20. The thickness of the first rib 112 and the second rib 113 is h1, and satisfies: h1≥20mm, the thickness of the back plate 20 is h2, and satisfies: h2≤5mm, the area of ​​the surface of the back plate 20 away from the bottom plate 11 is S1, and the total area of ​​the plurality of microporous areas 21 is S2, and satisfies: S2 / S1≤3%.

[0055] According to the outer barrel assembly 1 involved in the present invention, a silencer cavity 111 and a back plate 20 are arranged on the side of the outer barrel 10 away from the accommodating cavity 13, the back plate 20 is suitable for covering and closing the multiple silencer cavities 111, and microporous areas 21 corresponding to the multiple silencer cavities 111 are formed on the back plate 20, each microporous area 21 has multiple micropores formed therein, and the multiple micropores of each microporous area 21 and the silencer cavity 111 can consume the sound wave energy of the noise generated when the washing machine is working, so that the user can feel that the noise from the washing machine when it is working is small.

[0056] The washing machine according to the present invention will be briefly described below.

[0057] The washing machine according to the present invention is provided with the outer tub assembly 1 of the above embodiment. Since the washing machine according to the present invention is provided with the outer tub assembly 1 described in any one of the above embodiments, the noise generated by the washing machine during operation is small.

[0058] In summary, according to the outer barrel assembly 1 involved in the present invention, a plurality of muffler cavities 111 are arranged on the outer surface of the outer barrel 10, and one or more microporous areas 21 are arranged on the back plate 20, and at least one microporous area 21 is arranged corresponding to and covers the at least one muffler cavity 111. The plurality of micropores in the microporous area 21 and the muffler cavity 111 can consume the sound wave energy of the noise generated when the washing machine is working, reduce the noise when the washing machine is working, and improve the user experience; a plurality of interlaced reinforcing ribs are arranged on the side of the bottom plate 11 away from the accommodating cavity 13, and the thickness of the reinforcing ribs h1 ≥ 20 mm can be used to strengthen the bottom plate 11. The structural strength is increased while the silencing effect of the silencing cavity 111 is improved. The thickness h2≤5mm of the back plate 20 can increase the volume of the installation space for installing the motor and other electrical components while ensuring the silencing effect of the silencing hole, which is convenient for the layout and installation of the motor and other electrical components. The ratio of the total area S2 of the plurality of micropores to the area S1 of the surface of the back plate 20 away from the bottom plate 11 satisfies: S2 / S1≤3%, thereby reducing the low-frequency noise when the washing machine is working. The diameter of the micropore is d≤1mm, which can make the micropore mainly suitable for consuming the sound wave energy of the low-frequency noise, thereby further reducing the low-frequency noise when the washing machine is working.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0060] While embodiments of the present invention have been shown and described above, changes, modifications, substitutions and variations may be made to the embodiments described above.

Claims

1. An outer barrel assembly, characterized in that: include: An outer barrel, wherein a receiving cavity is formed inside the outer barrel, and a plurality of muffler cavities are formed on the outer surface of the outer barrel; A back plate, the back plate is arranged on the outer surface of the outer barrel, one or more microporous areas are formed on the back plate, micropores are formed in the microporous areas and penetrate the back plate in the thickness direction, at least one of the microporous areas is arranged corresponding to at least one of the muffler chambers and covers the muffler chamber.

2. The outer barrel assembly according to claim 1, characterized in that: The outer barrel comprises: Base plate; A side plate, the side plate is arranged on the outer periphery of the bottom plate to define the accommodating cavity; wherein A plurality of muffler cavities are formed on a surface of the bottom plate facing away from the accommodating cavity, and the back plate is connected to the bottom plate.

3. The outer barrel assembly according to claim 2, characterized in that: The bottom plate is disc-shaped, and a plurality of reinforcing ribs staggered with each other are formed on the surface of the bottom plate away from the accommodating cavity to define the muffler cavity on the bottom plate.

4. The outer barrel assembly according to claim 3, characterized in that: The reinforcing ribs include: A first rib, wherein the first rib is configured to be a plurality of ribs extending in the radial direction, and the plurality of first ribs are spaced and distributed in the circumferential direction; The second ribs are structured as a plurality of second ribs extending in the circumferential direction, the plurality of second ribs are spaced apart in the radial direction and intersect with the first ribs, and two adjacent first ribs and two adjacent second ribs jointly define the muffler cavity.

5. The outer barrel assembly according to claim 3, characterized in that: The thickness of the reinforcing rib is h1, and the thickness of the back plate is h2, satisfying: h1 / h2≥4.

6. The outer barrel assembly according to claim 5, characterized in that: The thickness of the reinforcing rib h1≥20mm, and the thickness of the back plate h2≤5mm.

7. The outer barrel assembly according to claim 2, characterized in that: The back plate is constructed in a ring shape, and the microporous area is constructed as a sector-shaped area corresponding to the muffler cavity one by one.

8. The outer barrel assembly according to claim 7, characterized in that: The back plate is constructed as a plurality of concentrically arranged annular plates with different radii, and each of the annular plates is provided with a plurality of microporous areas in the circumferential direction.

9. The outer barrel assembly according to claim 7, characterized in that: The area of ​​the surface of the back plate facing away from the bottom plate is S1, and the total area of ​​the micropores in the plurality of micropore areas is S2, satisfying: S2 / S1≤3%.

10. The outer barrel assembly according to claim 1, characterized in that: The diameter of the micropores in each micropore area is d, satisfying: d≤1 mm.

11. The outer barrel assembly according to claim 8, characterized in that: The back plate comprises: A first split part, the first split part is configured in a ring shape, and a avoidance hole is defined at the center of the first split part; A second split part, the second split part is configured as a ring that is concentrically arranged with the first split part, and the second split part is detachably connected to the first split part; wherein The first split portion and the second split portion are respectively provided with a plurality of microporous areas corresponding to each other in the circumferential direction.

12. A washing machine, characterized in that: The invention comprises an outer barrel assembly as described in any one of claims 1 to 11.

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