Laundry treatment machine

Abstract

Laundry treatment device (1), comprising: a support body (10) with an installation space (10a); at least one first drum component (20) which is arranged in the installation space (10a); a second drum component (30) which is arranged in the installation space (10a), wherein the at least one first drum component (20) is arranged above the second drum component (30); wherein the first drum component (20) and the second drum component (30) have an overlap area in a projection onto a vertical plane parallel to an axis of the first drum component (20); wherein a ratio of a dimension of the overlap area in a height direction of the laundry treatment device (1) to an outer diameter of the first drum component (20) is 0.1~0.4.

Description

TECHNICAL AREA

[0001] The present application relates to the technical field of laundry treatment equipment, in particular a laundry treatment device. BACKGROUND

[0002] With the ever-increasing demands of users on washing machines, they also want a single laundry treatment unit to offer functions such as zoned washing, zoned drying, or washer-dryer integration. Current technology equips laundry treatment units with multiple drum components; however, due to the limited space available in conventional laundry treatment units, the arrangement of multiple drum components is not practical. SUMMARY OF THE INVENTION

[0003] Against this background, the embodiments of the present application intend to provide a laundry treatment device in which several drum components are rationally arranged in the limited space of the laundry treatment device.

[0004] The embodiments of the present application provide a laundry treatment device comprising: a carrier body with an installation space; at least one first drum component arranged in the installation space; a second drum component arranged in the installation space, wherein at least one first drum component is arranged above the second drum component; wherein the first drum component and the second drum component have an overlap area in the projection onto a vertical plane parallel to the axis of the first drum component; wherein the ratio of the dimension of the overlap area in the vertical direction of the laundry treatment device to the outer diameter of the first drum component is 0.1~0.4.

[0005] In some embodiments, the ratio of the dimension of the overlap area in the vertical direction of the laundry treatment device to the outer diameter of the second drum component is 2%~5%.

[0006] In some embodiments, the number of first drum components is two, wherein the two first drum components are located to the left and right above the second drum component, respectively, and the ratio of the shortest distance between two adjacent first drum components in the left-right direction of the laundry treatment device to the dimension of the carrier body in the left-right direction is 0.2~0.4.

[0007] In some embodiments, the laundry treatment device comprises a first connecting element and a second connecting element, wherein one end of the first connecting element is connected to the first drum component and another end is rotatably connected to the support body, wherein one end of the second connecting element is connected to the first drum component and another end is connected to the support body.

[0008] The first connecting element and the second connecting element are arranged on opposite sides of the vertical midplane of the first drum component, the vertical midplane being a vertical plane passing through the axis of the first drum component; the elasticity of the second connecting element exceeds the elasticity of the first connecting element.

[0009] In some embodiments, the ratio of the distance between the connection position of the first connecting element with the support body and the connection position of the second connecting element with the support body in the left-right direction of the laundry treatment device to the outer diameter of the first drum component is 0.7~1.4.

[0010] In some embodiments, each first drum component is rotatably connected to the support body by two first connecting elements, wherein the two first connecting elements are arranged coaxially and spaced apart from each other along the forward-backward direction of the laundry treatment device; in the forward-backward direction, the center of gravity of the first drum component is positioned between the two first connecting elements; and / or each first drum component is connected to the support body by two second connecting elements, wherein the two second connecting elements are arranged coaxially and spaced apart from each other along the forward-backward direction of the laundry treatment device, and in the forward-backward direction, the center of gravity of the first drum component lies between the two second connecting elements.

[0011] In some embodiments, the support body comprises a top support and two first side supports spaced apart from each other in the left-right direction of the laundry treatment device, the top support being connected at its two opposite ends in the left-right direction to the two first side supports, and the top support and the two first side supports enclosing an installation space. The first connecting element is positioned closer to the first side support relative to the second connecting element.

[0012] In some embodiments, the support body comprises a deck support and two first side supports spaced apart from each other in the left-right direction of the laundry treatment device, the deck support being connected to the two first side supports at its two opposite ends in the left-right direction, and the deck support and the two first side supports enclosing an installation space.

[0013] An end of the first connecting element located away from the first drum component is connected to the deck support or the first side support by means of a connecting shaft; and / or an end of the second connecting element located away from the first drum component is connected to the deck support or the first side support.

[0014] In some embodiments, the ratio of the outer diameter of the first drum component to the dimension of the support body in the left-right direction of the laundry treatment device is 0.23~0.28; and / or the ratio of the outer diameter of the first drum component to the dimension of the support body in the vertical direction of the laundry treatment device is 0.17~0.21.

[0015] In some embodiments, the ratio of the outer diameter of the second drum component to the dimension of the support body in the left-right direction is 0.82~1.0; and / or the ratio of the outer diameter of the second drum component to the dimension of the support body in the vertical direction is 0.6~0.75.

[0016] In the laundry treatment device provided in the embodiments of the present application, the projections of the first drum component and the second drum component have an overlapping area, which makes it possible to reduce the vertical dimension of the projections of the first and second drum components to a smaller value than the sum of the outer diameters of the first and second drum components. This promotes a more compact structure and allows the vertical dimension of the laundry treatment device to be kept as small as possible. BRIEF DESCRIPTION OF THE FIGURES Fig. Figure 1 is a structural schematic representation of a laundry treatment device according to an embodiment of this application. Fig. Figure 2 is a schematic representation from a different perspective of Fig. 1. Fig. 3 is a schematic cross-sectional view along AA in Fig. 2. REFERENCE MARK LIST

[0017] 1 Laundry treatment unit; 10 Support body; 10a Installation space; 11 Deck support; 12 First side support; 20 First drum component; 20a First laundry treatment chamber; 30 Second drum component; 30a Second laundry treatment chamber; 40 First connecting element; 40a First position; 50 Second connecting element; 50a Second position. DETAILED EXECUTION FORMS

[0018] To clarify and make more understandable the objectives, technical solutions, and advantages of this application, it is described in further detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein serve only to illustrate this application and are not intended to limit it.

[0019] The individual specific technical features described in the specific embodiments can be combined in any suitable way, provided they are not contradictory. For example, different embodiments and technical solutions can be formed by combining various specific technical features. To avoid unnecessary repetition, the various possible combinations of the individual specific technical features are not explained separately in this application.

[0020] In the following description, the terms "first," "second," etc., are used solely to distinguish between different objects and do not indicate any similarities or connections between them. It should be understood that the directional terms "top," "bottom," "outside," and "inside" refer to the orientation in normal use, while the directional terms "left" and "right" denote the left-right direction shown in the corresponding schematic diagram, which may or may not correspond to the left-right direction of normal use.

[0021] It should be clarified that the terms "comprise," "contain," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a number of elements includes not only those elements but also other elements not expressly listed or elements inherent in that process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. "Several" means two or more.

[0022] The embodiment of the present application provides a laundry treatment device 1.

[0023] It is understandable that the laundry treatment device 1 can include various forms, for example washing machine, spin dryer, dryer, washer-dryer combination, washer-dryer set, etc., whereby the laundry treatment device 1 can independently perform one or more functions such as washing, drying, spinning, etc.

[0024] Referring to Fig. 1 The laundry treatment device 1 comprises a carrier body 10, at least one first drum component 20 and a second drum component 30.

[0025] The carrier body 10 has an installation space 10a. The second drum component 30 and the at least one first drum component 20 are both arranged within the installation space 10a.

[0026] It is understood that the support body 10 serves to provide a receiving space for the first drum component 20 and the second drum component 30, and that the support body 10 has sufficient structural strength to act as a force-absorbing component, to bear vertical loads and to withstand horizontal actions, wherein the first drum component 20 and the second drum component 30 are supported on the support body 10 and the support body 10 is able to bear at least the weight of the first drum component 20 and the second drum component 30 as well as their respective loads.

[0027] A first drum component 20 is arranged above the second drum component 30.

[0028] By arranging the second drum component 30 below a first drum component 20, the vertically stacked construction can reduce the transverse space requirement of the laundry treatment device 1, thereby making the overall dimensions of the laundry treatment device 1 appropriate.

[0029] Furthermore, the first drum component 20 and the second drum component 30 can be used to perform the same laundry treatment functions or to perform different laundry treatment functions. For example, in some embodiments, the first drum component 20 and the second drum component 30 can be used to wash or dry the same type of clothing or to wash or dry different types of laundry.For example, the first drum component 20 can be used for washing or drying underwear, socks, and similar items, or children's clothing; the second drum component 30 can be used for washing or drying outerwear and similar items, thus enabling appropriate washing or drying operations for laundry of different sizes or with different washing or drying requirements, thereby increasing the efficiency and reliability of laundry treatment. In other embodiments, the first drum component 20 is used for washing laundry, and the second drum component 30 for drying laundry, thus providing various laundry treatment functions.

[0030] It should be explained that the first drum component 20 and the second drum component 30 can operate simultaneously or separately.

[0031] Referring to Fig. 3 The first drum component 20 and the second drum component 30 are projected onto a vertical plane parallel to the axis of the first drum component 20 (hereinafter referred to as B, see Fig. 3) an overlap area.

[0032] It is understandable that the vertical plane runs parallel to the height direction of the laundry treatment device 1, whereby the overlap area exhibited by the projections of the first drum component 20 and the second drum component 30 causes the dimension of the projections of the first drum component 20 and the second drum component 30 in the height direction to be smaller than the sum of the outer diameter of the first drum component 20 and the outer diameter of the second drum component 30. This favors a more compact structure and ensures that the dimension of the laundry treatment device 1 in the height direction is kept as small as possible.

[0033] For example, one of the aforementioned first drum components 20 is arranged to the left and above the second drum component 30, or the aforementioned first drum component 20 is arranged to the right and above the second drum component 30. Since the space directly above the second drum component 30 is relatively small compared to the spaces to the upper left and upper right, this arrangement allows the space directly above the second drum component 30 to be bypassed and the upper left and upper right positions of the second drum component 30 to be fully utilized.

[0034] For example, the first drum component 20 has a first laundry treatment chamber 20a. The first laundry treatment chamber 20a is used to hold laundry.

[0035] It should be noted that the specific dimensions of the overlap area are not limited.

[0036] For example, consider Fig. 3 referred to, wherein the ratio of the dimension of the overlap area in the vertical direction of the laundry treatment device 1 (hereinafter referred to as H1, see Fig. 3) to the outer diameter of the first drum component 20 (hereinafter referred to as D1, see Fig. 3) 0.1~0.4 is, i.e. 0.1≤H1 / D1≤0.4, for example H1 / D1 is 0.10; 0.11; 0.12; 0.123; 0.13; 0.14; 0.15; 0.20; 0.25; 0.30; 0.35 or 0.40 etc.

[0037] It is understandable that the ratio of dimension H1 of the overlap area in the vertical direction to the outer diameter D1 of the first drum component 20 is appropriate, thus ensuring a compact structure both vertically and horizontally. In particular, an adequate safety distance is maintained between the first drum component 20 and the second drum component 30 to prevent collisions between them during operation. If the aforementioned overlap area of ​​the first drum component 20 and the second drum component 30 exceeds 0.4, the first drum component 20 and the second drum component 30 would have to occupy a very large space horizontally, significantly increasing the dimensions of the support body 10 in this direction.

[0038] It should be explained that the left-right direction refers to the left and right sides of the laundry treatment device 1 in its normal operating condition, with the left-right direction running perpendicular to the vertical direction and the forward-backward direction of the laundry treatment device 1, i.e., the direction indicated by the arrow "left-right direction" in Fig. 1. Indicated direction.

[0039] In some embodiments, see Fig. 3, is the ratio of the dimension H1 of the overlap area in the vertical direction of the laundry treatment device 1 to the outer diameter of the second drum component 30 (hereinafter referred to as D2, see Fig. 3) 2%~5%, i.e. 2%≤H1 / D2≤5%, for example H1 / D2 is 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3.0%, 3.5%, 4.0%, 4.1%, 4.3%, 4.5%, 4.7% or 5.0% etc.

[0040] It is understandable that under the comparison condition in which the outer diameter of the second drum component 30 is equal to the outer diameter of the drum component of an existing single-drum laundry treatment device 1, the ratio of the dimension H1 of the overlap area in the vertical direction to the outer diameter D2 of the second drum component 30 is appropriate in this embodiment, which allows both the space in the vertical direction to be used effectively and enables a reasonable arrangement of the first drum component without changing the dimensions of the existing support body 10 in the horizontal direction.

[0041] For example, the second drum component 30 has a second laundry treatment chamber 30a. The second laundry treatment chamber 30a serves to hold laundry.

[0042] For example, the outer diameter of the second drum component 30 is larger than the outer diameter of the first drum component 20. The capacity of the second laundry treatment chamber 30a is larger than the capacity of the first laundry treatment chamber 20a. The second drum component 30 can be referred to as the large drum, and the first drum component 20 can be referred to as the small drum.

[0043] Thus, the second drum component is able to handle 30 bulky washes or large quantities of laundry, for example outerwear, while the first drum component is able to handle 20 small-volume washes or small quantities of laundry, for example socks, underwear or baby clothes, etc.

[0044] In this embodiment, the volume of the second laundry treatment chamber 30a is larger than the volume of the first laundry treatment chamber 20a, with the weight of the second drum component 30 arranged below being higher, which advantageously lowers the overall center of gravity of the laundry treatment device 1 and increases the stability of the laundry treatment device 1.

[0045] In some embodiments, see Fig. 3, the number of first drum components 20 is two, wherein the two first drum components 20 are arranged to the left and above, and to the right and above, the second drum component 30, and the ratio of the shortest distance between two adjacent first drum components 20 in the left-right direction to the dimension of the support body 10 in the left-right direction is 0.2~0.4, i.e., 0.2≤L1 / L≤0.4, where, for example, the dimension of the support body 10 is the standard housing dimension at L = 600 mm (millimeters), 240 mm≥L1≥120 mm, for example, L1 can be 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, 162 mm, 170 mm, 180 mm, 190 mm, 200 mm, 210 mm, 220 mm, 230 mm mm or 240 mm, etc.

[0046] It is understandable that this allows the shortest distance between two adjacent first drum components 20 in the left-right direction to be appropriately designed, whereby more space can be created between or below the two first drum components 20, which can be used for installing components or for accommodating part of the second drum component 30, which helps to keep the dimensions of the laundry treatment device 1 as small as possible in the vertical direction.

[0047] It should be explained that the aforementioned dimension L of the support body 10 in the left-right direction refers to the maximum distance between the two first side supports 12 described below in the left-right direction, that is, the distance from the left outer surface of the left-side first side support 12 to the right outer surface of the right-side first side support 12.

[0048] In some embodiments, with reference to Fig. 3, the ratio of the outer diameter of the first drum component 20 (hereinafter referred to as D1, see Fig. 3) Regarding the dimension L of the main support 10 in the left-right direction, 0.23~0.28, i.e., 0.23≤D1 / L≤0.28. Using the dimensions of the main support 10 as an example for a standard housing, with L = 600 mm, this results in 168 mm≥D1≥138 mm; for example, D1 can be 138 mm, 140 mm, 145 mm, 150 mm, 154 mm, 160 mm, 165 mm, or 168 mm, etc.

[0049] In this embodiment, it is ensured that the first laundry treatment chamber 20a of the first drum component 20 has a relatively large volume, while at the same time taking into account that relatively small dimensions are required in the left-right direction of the support body 10, thereby advantageously ensuring an appropriate distance between two adjacent first drum components 20 in the left-right direction.

[0050] In some embodiments, see Fig. 3, is the ratio of the outer diameter D1 of the first drum component 20 to the dimension of the support body 10 in the vertical direction (hereinafter referred to as H, see Fig. 3) 0.17~0.21, i.e. 0.17≤D1 / H≤0.21. In this embodiment, it is ensured that the first laundry treatment chamber 20a of the first drum component 20 has a relatively large volume, while at the same time taking into account that relatively small dimensions are required in the vertical direction of the support body 10, whereby additional space is kept free below the first drum component 20, which can be used to accommodate the second drum component 30 described below, which is advantageous so that the support body 10 retains appropriate dimensions in the vertical direction.

[0051] At this point, for example, the dimension of the carrier body 10 is used as the dimension of the standard housing, where for H = 800 mm: 168 mm ≥ D1 ≥ 136 mm, for example D1 = 136 mm, 138 mm, 140 mm, 145 mm, 150 mm, 154 mm, 160 mm, 165 mm or 168 mm etc.

[0052] It should be clarified that the aforementioned dimension H of the support body 10 in the vertical direction refers to the dimension of the first side support 12 described below and does not include the height of the top support 11 and the base feet of the laundry treatment unit described below. For example, in the standard housing, the dimension H of the support body 10 in the vertical direction is 790 mm to 810 mm, with the overall height of the laundry treatment unit being 840 mm to 860 mm.

[0053] In some embodiments, reference is made to Fig. 3 Reference is made to the ratio of the outer diameter of the second drum component 30 (hereinafter referred to as D2, see Fig. 3) The dimension L of the support body 10 in the left-right direction is 0.82~1.0, i.e., 0.82≤D2 / L≤1.0. Using the dimension of the support body 10 as the dimension of the standard housing as an example: if L is 600 mm, then 600 mm≥D2≥492 mm, for example, D2 is 492 mm, 500 mm, 510 mm, 520 mm, 530 mm, 540 mm, 542 mm, 550 mm, 556 mm, 560 mm, 570 mm, or 600 mm, etc.

[0054] In the relevant technology, single-drum washing machines with the dimensions of the standard housing typically have an outer diameter (of the outer drum) of 480 mm to 570 mm.

[0055] In this embodiment, the second drum component 30 can fully utilize the space of the support body 10 in the left-right direction. Assuming the support body 10 has the same width in the left-right direction (for example, a standard housing width of 600 mm), the volume of the second drum component 30 becomes comparable to the volume of single-drum washing machines from the prior art. In this way, without reducing the volume of the large drum, at least two additional small drums can be added to improve the space utilization of the laundry treatment machine 1.

[0056] In some embodiments, see Fig. 3. The ratio of the outer diameter D2 of the second drum component 30 to the dimension H of the support body 10 in the vertical direction is 0.6~0.75, that is, 0.6≤D2 / H≤0.75. For the dimensions of the support body 10 as dimensions of a standard housing, for example: if H is 800 mm, then 600 mm≥D2≥480 mm, for example, D2 is 480 mm, 490 mm, 500 mm, 510 mm, 520 mm, 530 mm, 540 mm, 542 mm, 550 mm, 556 mm, 560 mm or 600 mm, etc.

[0057] In this embodiment, the volume of the second drum component 30 corresponds to the volume of a single-drum washing machine of the prior art, wherein the second drum component 30 occupies an appropriate dimension in the vertical direction of the support body 10, thereby providing sufficient space for the installation of the upper first drum component 20, which is advantageous in order to keep the support body 10 in appropriate dimensions in the vertical direction.

[0058] In some embodiments, see Fig. 2 and Fig. 3, the laundry treatment device 1 comprises a first connecting element 40 and a second connecting element 50, wherein the first connecting element 40 is connected at one end to the first drum component 20 and rotatably connected at the other end to the support body 10.

[0059] This means that the first drum component 20 is rotatable about the axis of the other end of the first connecting element 40. It should be noted that the rotatable connection does not necessarily cause permanent rotation, but under certain circumstances allows vibrations, for example during the operation of the laundry treatment device 1, whereby the first drum component 20 experiences vibrations and can rotate about the axis of rotation.

[0060] The axis of rotation of the first connecting element 40 can be referred to as the first axis (see Z in Fig. 2).

[0061] The first drum component 20 is rotatable about the first axis relative to the carrier body 10. It is understood that the first drum component 20 performs a rotary motion about the first axis. The inner drum of the first drum component 20 is rotatable about its own axis.

[0062] The first connecting element 40 serves to establish a force transmission relationship between the first drum component 20 and the support body 10, wherein at least a part of the weight force of the first drum component 20 is transferred to the first connecting element 40, which transmits this weight force to the support body 10.

[0063] It should be understood that the first axis can be designed as a virtual straight line.

[0064] The second connecting element 50 is connected at one end to the first drum component 20 and at the other end to the support body 10. The elasticity of the second connecting element 50 is greater than the elasticity of the first connecting element 40.

[0065] It is to be explained that the elasticity of the second connecting element 50 is greater than the elasticity of the first connecting element 40, encompassing the following two cases: Firstly, the first connecting element 40 has almost no elasticity (can be understood as a mechanically rigid component); secondly, the first connecting element 40 may have some elasticity, but this elasticity is less than the elasticity of the second connecting element 50.

[0066] The first connecting element 40 and the second connecting element 50 are arranged on opposite sides of the vertical midplane of the first drum component 20, the vertical midplane being a vertical plane passing through the axis of the first drum component 20. The elasticity of the second connecting element 50 is greater than the elasticity of the first connecting element 40.

[0067] The first connecting element 40 and the second connecting element 50 are arranged on opposite sides of the vertical midplane of the first drum component 20, the vertical midplane being a vertical plane passing through the axis of the first drum component 20, as shown in Fig. 3 with B shown. Thus, the combined action of the second connecting element 50 and the first connecting element 40 advantageously ensures that the first drum component 20 maintains a force equilibrium and exhibits good stability, thereby preventing the first drum component 20 from exhibiting a cantilever force state (if the first connecting element 40 and the second connecting element 50 are both located on the same side of the vertical mid-plane B, this force form can be understood as a cantilever force state, whereby this force distribution is unfavorable and leads to failure or damage of certain structures at the connection point).

[0068] It is understandable that, during vibrations of the first drum component 20, the effective length of the second connecting element 50 can change due to its elasticity. This allows the second connecting element 50 and the first connecting element 40 to rotate the first drum component 20 around the axis of rotation of the first connecting element 40, thus dissipating vibrational energy. Furthermore, the first connecting element 40 is able to hold the first drum component 20 as a whole with a substantially fixed axis of rotation (i.e.,(the position of the first axis will not shift noticeably), wherein the first drum component 20 has virtually no displacement in the radial direction around the first axis as its center point, but rotates around the axis of rotation, so that the first drum component 20 and other structures in the aforementioned radial direction can maintain a relatively small safety distance, which is conducive to a compact structure.

[0069] It should be explained that the specific structure of the second connecting element 50 is not limited and may, for example, comprise at least one damper or suspension spring (where the suspension spring is a form of the first elastic element). The damper may be a damper used in drum washing machines according to the prior art, which will not be discussed further here.

[0070] In some embodiments, see Fig. 2, the axis of rotation of the first connecting element 40 runs parallel to the axis of the first drum component 20. The first axis can essentially run parallel to the forward-backward direction of the laundry treatment device 1.

[0071] This means that the first drum component 20 can rotate around a horizontal axis, which makes the movement of the first drum component 20 more stable and allows the lateral vibration energy of the first drum component 20 to be absorbed better, thus increasing the damping effect and improving the overall stability of the laundry treatment device 1.

[0072] In some embodiments, the laundry treatment device 1 comprises a connecting shaft, wherein at least one of the carrier body 10 and the first connecting element 40 is formed with a shaft bore, wherein the connecting shaft is passed through the shaft bore to rotatably connect the first drum component 20 to the carrier body 10.

[0073] It is understood that at least one of the aforementioned first connecting element 40 and the support body 10 is provided with a shaft bore, wherein the connecting shaft is passed through the shaft bore, wherein the first connecting element 40 may be provided with a shaft bore, wherein one end of the connecting shaft is fixedly connected to the support body 10 and the other end is passed through the shaft bore of the first connecting element 40; It is also possible that the support body 10 is provided with a shaft bore, wherein one end of the connecting shaft is fixedly connected to the first connecting element 40 and the other end is passed through the shaft bore of the support body 10;It may further be provided that both the first connecting element 40 and the support body 10 are provided with shaft bores, wherein one end of the connecting shaft is passed through the shaft bore of the support body 10 and the other end is passed through the shaft bore of the first connecting element 40.

[0074] In some embodiments, see Fig. 1 and Fig. 3, the support body 10 comprises a deck support 11 and two first side supports 12, which are spaced apart from each other in the left-right direction of the laundry treatment device 1, wherein the deck support 11 is connected at its two opposite ends in the left-right direction to the two first side supports 12, and the deck support 11 and the two first side supports 12 enclose an installation space 10a.

[0075] For example, one of the first side supports 12 can be arranged to the left of the deck support 11, while the other first side support 12 is arranged to the right of the deck support 11.

[0076] Here, the deck support 11 and the two first side supports 12 exhibit a certain structural strength and form structures that can fulfill a load-bearing function.

[0077] For example, the first connecting element 40 is arranged closer to the first side support 12 relative to the second connecting element 50. For example, in the case of the upper left first drum component 20, of the first connecting element 40 and second connecting element 50 connected to the upper left first drum component 20, the first connecting element 40 is arranged closer to the first side support 12 on the left than the second connecting element 50. In the case of the upper right first drum component 20, of the first connecting element 40 and second connecting element 50 connected to the upper right first drum component 20, the first connecting element 40 is arranged closer to the first side support 12 on the right than the second connecting element 50.

[0078] In this embodiment, the first connecting element 40 is arranged relatively close to the edge of the support body 10 in the left-right direction, with the edge regions exhibiting higher structural strength and stiffness, reducing the vibration amplitude, and thus improving the stability of the laundry treatment device 1. Since the first connecting element 40 is arranged relatively close to the edge of the support body 10 in the left-right direction, the first axis is also located close to the edge of the support body 10 in the left-right direction, thereby optimally utilizing the space at the edge of the support body 10 in the left-right direction.

[0079] In some embodiments, the first connecting element 40 is connected with its end furthest from the first drum component 20 to the deck support 11 or the first side support 12 via a connecting shaft; and / or the second connecting element 50 is connected with its end furthest from the first drum component 20 to the deck support 11 or the first side support 12.

[0080] It should be explained that the foregoing can encompass the following several situations. First type: The first connecting element 40 is connected to the deck support 11 via a connecting shaft at its end furthest from the first drum component 20, and the second connecting element 50 is connected to the deck support 11 at its end furthest from the first drum component 20. Second type: The first connecting element 40 is connected to the deck support 11 via a connecting shaft at its end furthest from the first drum component 20, and the second connecting element 50 is connected to the first side support 12 at its end furthest from the first drum component 20.Third type: The first connecting element 40 is connected with its end furthest from the first drum component 20 via a connecting shaft to the first side support 12, and the second connecting element 50 is connected with its end furthest from the first drum component 20 to the deck support 11.

[0081] In some embodiments, as in Fig. 2 shown, each first drum component 20 rotatably connected to the carrier body 10 by two first connecting elements 40, wherein the two first connecting elements 40 are arranged coaxially and spaced apart from each other in the forward-backward direction of the laundry treatment device 1, and the center of gravity of the first drum component 20 is located in the forward-backward direction between the two first connecting elements 40.

[0082] In this embodiment, the weight of the first drum component 20 and its load are at least partially transferred to the support body 10 via the two first connecting elements 40, wherein the center of gravity distribution of the first drum component 20 is designed so rationally that the distribution of the support forces of the two first connecting elements 40 on the first drum component 20 is appropriate, whereby the uneven vibration of the first drum component 20 can be reduced during the vibration process of the first drum component 20 and thus the vibration of the first drum component 20 can be reduced.

[0083] For example, the following will be discussed Fig. 2 Reference is made to each first drum component 20 being connected to the carrier body 10 via two second connecting elements 50, wherein the two second connecting elements 50 are arranged coaxially and spaced apart from each other along the forward-backward direction of the laundry treatment device 1, wherein in the forward-backward direction the center of gravity of the first drum component 20 is located between the two second connecting elements 50.

[0084] It is understandable that during the vibration process of the first drum component 20, when the first drum component 20 as a whole rotates around the first axis Z, the difference in the amounts of change of the effective lengths of the two connecting elements can be reduced, which helps to maintain the rotational stability of the first drum component 20.

[0085] In some embodiments, with reference to Fig. 3, is the ratio of the distance (hereinafter referred to as L2, see Fig. 3) in left-right direction from the connection position of the first connecting element 40 with the carrier body 10 to the connection position of the second connecting element 50 with the carrier body 10 to the outer diameter D1 of the first drum component 20 not less than 0.7, i.e. L2 / D1≥0.7, for example L2 / D1 is 0.7, 0.8, 0.84, 0.9 or 1.0 etc.

[0086] It is understandable that the first drum component 20 establishes a force transmission path with the carrier body 10 via the first connecting element 40 and the second connecting element 50, whereby the connection position of the first connecting element 40 with the carrier body 10 is described as first position 40a and the connection position of the second connecting element 50 with the carrier body 10 as second position 50a.

[0087] Thus, the distance between the first position 40a and the second position 50a in the left-right direction is L2, which increases the distance between the first position 40a and the second position 50a in the left-right direction, so that the second connecting element 50 has sufficient room for movement and can better absorb the shock forces occurring during the operation of the first drum component 20, thereby reducing the vibration of the first drum component 20.

[0088] In some embodiments, see Fig. 3, the ratio of the distance L2 in the left-right direction from the connection position of the first connecting element 40 with the support body 10 to the connection position of the second connecting element 50 with the support body 10 to the outer diameter D1 of the first drum component 20 is not greater than 1.4, i.e. 1.4≥L2 / D1, for example L2 / D1 is 1.4; 1.3; 1.2; 1.1; 1.0; 0.9; 0.84; 0.8 or 0.7 etc.

[0089] In this embodiment, the space occupied by the first connecting element 40 and the second connecting element 50 can be reduced by reducing the distance between the first position 40a and the second position 50a in the left-right direction, and furthermore, in the case of eccentric loading of the first drum component 20, the difference in the forces acting on the first connecting element 40 and the second connecting element 50 can be advantageously reduced, thereby reducing the failure risk of the first connecting element 40 and the second connecting element 50 in order to ensure the operational stability of the first drum component 20.

[0090] In the description of this application, references to the terms "an embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or properties described in connection with that embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this application, the schematic representations of the foregoing terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or properties may be combined appropriately in one or more embodiments or examples.Furthermore, experts in this field may combine the various embodiments or examples described in the present application as well as the features of different embodiments or examples, provided that they do not contradict each other.

[0091] The above descriptions merely represent preferred embodiments of the present application and do not serve to limit the scope of the present application. Various modifications and adaptations of the present application are possible for a person skilled in the art. All modifications, equivalent replacements, improvements, and the like, which are made within the spirit and principles of the present application, are covered by the scope of protection of the present application.

Claims

[1] Laundry treatment device (1), comprising: a support body (10) with an installation space (10a); at least one first drum component (20) which is arranged in the installation space (10a); a second drum component (30) which is arranged in the installation space (10a), wherein the at least one first drum component (20) is arranged above the second drum component (30); wherein the first drum component (20) and the second drum component (30) have an overlap area in a projection onto a vertical plane parallel to an axis of the first drum component (20); wherein a ratio of a dimension of the overlap area in a height direction of the laundry treatment device (1) to an outer diameter of the first drum component (20) is 0.1~0.

4. [2] Laundry treatment device (1) according to claim 1, characterized by, that the ratio of the dimension of the overlap area in the vertical direction of the laundry treatment device (1) to the outer diameter of the second drum component (30) is 2%~5%. [3] Laundry treatment device (1) according to claim 1, characterized by , that the number of first drum components (20) is two, wherein the two first drum components (20) are located to the left and right of the second drum component (30), and the ratio of a shortest distance between two adjacent first drum components (20) in a left-right direction of the laundry treatment device (1) to a dimension of the carrier body (10) in the left-right direction is 0.2~0.

4. [4] Laundry treatment device (1) according to one of claims 1-3, characterized by, that the laundry treatment device (1) comprises a first connecting element (40) and a second connecting element (50), wherein one end of the first connecting element (40) is connected to the first drum component (20) and another end is rotatably connected to the support body (10), wherein one end of the second connecting element (50) is connected to the first drum component (20) and another end is connected to the support body (10); the first connecting element (40) and the second connecting element (50) are arranged on opposite sides of a vertical median plane of the first drum component (20), wherein the vertical median plane is a vertical plane passing through the axis of the first drum component (20); an elasticity of the second connecting element (50) is greater than an elasticity of the first connecting element (40). [5] Laundry treatment device (1) according to claim 4, characterized by, that the ratio of a distance between a connection position of the first connecting element (40) with the carrier body (10) and a connection position of the second connecting element (50) with the carrier body (10) in a left-right direction of the laundry treatment device (1) to the outer diameter of the first drum component (20) is 0.7~1.

4. [6] Laundry treatment device (1) according to claim 4, characterized by, that each first drum component (20) is rotatably connected to the support body (10) by two first connecting elements (40), wherein the two first connecting elements (40) are arranged coaxially and spaced apart from each other along a forward-backward direction of the laundry treatment device (1), and in the forward-backward direction a center of gravity of the first drum component (20) lies between the two first connecting elements (40); and / or each first drum component (20) is connected to the support body (10) by two second connecting elements (50), wherein the two second connecting elements (50) are arranged coaxially and spaced apart from each other along the forward-backward direction of the laundry treatment device (1), and in the forward-backward direction the center of gravity of the first drum component (20) lies between the two second connecting elements (50). [7] Laundry treatment device (1) according to claim 4, characterized by, that the support body (10) comprises a deck support (11) and two first side supports (12) which are spaced apart from each other in a left-right direction of the laundry treatment device (1), wherein the deck support (11) is connected at its two opposite ends in the left-right direction to the two first side supports (12), the deck support (11) and the two first side supports (12) enclose the installation space (10a), and the first connecting element (40) is positioned closer to the first side support (12) relative to the second connecting element (50). [8] Laundry treatment device (1) according to claim 4, characterized by, that the support body (10) comprises a deck support (11) and two first side supports (12) spaced apart from each other in a left-right direction of the laundry treatment device (1), the deck support (11) being connected at its two opposite ends in the left-right direction to the two first side supports (12), and the deck support (11) and the two first side supports (12) enclosing the installation space (10a); an end of the first connecting element (40) located away from the first drum component (20) is connected to the deck support (11) or the first side support (12) by means of a connecting shaft; and / or an end of the second connecting element (50) located away from the first drum component (20) is connected to the deck support (11) or the first side support (12). [9] Laundry treatment device (1) according to claim 1, characterized by, that a ratio of the outer diameter of the first drum component (20) to a dimension of the support body (10) in a left-right direction of the laundry treatment device (1) is 0.23~0.28; and / or a ratio of the outer diameter of the first drum component (20) to a dimension of the support body (10) in the vertical direction of the laundry treatment device (1) is 0.17~0.

21. [10] Laundry treatment device (1) according to claim 1, characterized by , that the ratio of the outer diameter of the second drum component (30) to a dimension of the support body (10) in a left-right direction is 0.82~1.0; and / or the ratio of the outer diameter of the second drum component (30) to a dimension of the support body (10) in the vertical direction is 0.6~0.75.

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