Laundry treatment machine

Abstract

Laundry treatment device (1), comprising: a support body (10) with an installation space (10a); at least two first drum components (20), all of which are arranged in the installation space (10a), wherein the at least two first drum components (20) are spaced apart from each other along a left-right direction of the laundry treatment device (1); wherein a ratio of a shortest distance between two adjacent first drum components (20) in the left-right direction to a dimension of the support body (10) in the left-right direction is not less than 0.2.

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 expediently arranged within 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 two first drum components, all of which are arranged in the installation space, wherein the at least two first drum components are spaced apart from each other along the left-right direction of the laundry treatment device; wherein the ratio of the shortest distance between two adjacent first drum components in the left-right direction to the dimension of the carrier body in the left-right direction is not less than 0.2.

[0005] In some embodiments, the ratio of the shortest distance between two adjacent first drum components in the left-right direction to the dimension of the carrier body in the left-right direction is not greater than 0.4.

[0006] In some embodiments, the ratio of the outer diameter of the first drum component to the dimension of the carrier body in the left-right direction is 0.23~0.28.

[0007] In some embodiments, 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.

[0008] In some embodiments, the laundry treatment device comprises a second drum component which is arranged in the installation space, wherein at least two first drum components are arranged to the left above and right above the second drum component, respectively.

[0009] The ratio of the outer diameter of the second drum component to the dimension of the carrier 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 carrier body in the vertical direction is 0.6~0.75.

[0010] In some embodiments, the laundry treatment device comprises a second drum component which is arranged in the installation space, wherein at least two first drum components are arranged to the left above and right above the second drum component, respectively.

[0011] The first drum component and the second drum component have an overlap area when projected onto a vertical plane parallel to the axis of the first drum component.

[0012] 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 first drum component is 0.1~0.4.

[0013] 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, and one end of the second connecting element is connected to the first drum component and the other end is connected to the support body.

[0014] The first connecting element and the second connecting element are arranged on opposite sides of the vertical midplane of the first drum component, wherein the vertical midplane is a vertical plane passing through the axis of the first drum component; wherein the elasticity of the second connecting element is greater than the elasticity of the first connecting element.

[0015] In some embodiments, the ratio of the distance in the left-right direction between the connection position of the first connecting element with the carrier body and the connection position of the second connecting element with the carrier body to the outer diameter of the first drum component is 0.7~1.4.

[0016] 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 at its two opposite ends in the left-right direction to the two first side supports, and the deck 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.

[0017] 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 at its two opposite ends in the left-right direction to the two first side supports, and the deck support and the two first side supports enclosing an installation space.

[0018] 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.

[0019] The laundry treatment device of the embodiment of the present application allows, with a constant width of the support body in the left-right direction, an increased distance between two adjacent first drum components. This creates additional space between or beneath the two first drum components, which promotes a more compact design and helps to minimize the vertical dimensions of the laundry treatment device. Furthermore, the minimum distance between the connection points of two adjacent first drum components with the support body is increased in the left-right direction. This reduces the impact of local vibration of the support body on the other first drum component when one of the first drum components is in operation.When both first drum components are operated simultaneously, the distance between the transmission positions of the vibrations generated by each of the two first drum components onto the support body is increased, which prevents the vibrations generated by the two first drum components from influencing each other and contributes to reducing the vibration amplitude of the support body. 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. Fig. Figure 4 is a vibration comparison diagram of laundry treatment devices according to some embodiments and comparison examples of the present application. REFERENCE MARK LIST

[0020] 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

[0021] To clarify and make more understandable the objectives, technical solutions, and advantages of the present application, the present application 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 the present application and are not intended to limit it.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] The embodiment of the present application provides a laundry treatment device 1.

[0026] 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.

[0027] Referring to Fig. 1 The laundry treatment device 1 comprises a carrier body 10, at least two first drum components 20.

[0028] It should be noted that in the embodiments of the present application, “at least two” refers to two or more.

[0029] The support body 10 has an installation space 10a. The aforementioned at least two first drum components 20 are arranged in the installation space 10a.

[0030] It is understood that the support body 10 serves to provide a receiving space for the first drum component 20 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 is 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 its load.

[0031] The aforementioned at least two first drum components 20 can be used to perform the same laundry treatment function or to perform different laundry treatment functions. For example, in some embodiments, all first drum components 20 have the same laundry treatment function; for instance, they are all used for washing, or all for drying laundry, or each first drum component 20 combines both the washing and drying functions.

[0032] The aforementioned at least two first drum components 20 enable zoned washing of laundry. For example, one of the first drum components 20 can treat underwear and other close-fitting laundry, while the other first drum component 20 can treat socks and other laundry.

[0033] It should be explained that all first drum components 20 can operate simultaneously or separately. The volumes of all first drum components 20 can be the same or different; no restriction is imposed in this regard.

[0034] The aforementioned at least two first drum components 20 are spaced apart from each other in the left-right direction of the laundry treatment device 1, thereby advantageously reducing the space occupied by the aforementioned first drum components 20 in the vertical direction. With regard to the first drum components 20 in the up-down direction, there are no special requirements for an arrangement that is subject to objection; in the up-down direction, they can be arranged with or without a gap.

[0035] For example, any two first drum components 20 are not connected to each other, which reduces interference between the first drum components 20.

[0036] 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.

[0037] See below. Fig. 2 and Fig. 3, the ratio of the shortest distance (hereinafter referred to as L1, see Fig. 3) of two adjacent first drum components 20 in left-right direction for dimensioning (hereinafter referred to as L, see Fig. 2) of the carrier body 10 in the left-right direction not less than 0.2, i.e., L1 / L ≥ 0.2. Using the dimension of the carrier body 10 as a standard housing dimension as an example: for L = 600 mm (millimeters), L1 ≥ 120 mm, for example, L1 is equal to 120 mm, 130 mm, 140 mm, 150 mm, 160 mm, or 162 mm, etc.

[0038] Due to L1 / L≥0.2, with the same width of the support body 10 in the left-right direction, the distance between two adjacent first drum components 20 is increased, thereby creating more space 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 described below, thus promoting a more compact structure and helping to keep the dimensions of the laundry treatment device 1 as small as possible in the vertical direction.

[0039] In this embodiment, due to the ratio L1 / L≥0.2, a relatively large distance is achieved between the two first drum components 20 in the left-right direction, which results in a correspondingly large minimum distance between the connection points of the two first drum components 20 with the support body 10 in the left-right direction. When one of the first drum components 20 is in operation, the local vibration of the support body 10, which arises from the transmission of the vibration generated by the first drum component 20, has only a minor effect on the other first drum component 20.When both first drum components 20 are operated simultaneously, a relatively large distance is achieved between the transmission positions of the vibrations generated by the two first drum components 20 on the support body 10, which makes it more difficult for the vibrations generated by the two first drum components 20 to interfere with each other, thus contributing to the reduction of the vibration amplitude of the support body 10.

[0040] It should be explained that in the prior art, the distance between the two first drum components 20 in the left-right direction is very small, and the distance between the connection points of the two first drum components 20 with the support body 10 in the left-right direction is also relatively small. When the first drum component 20 vibrates, the probability of a collision between the two first drum components 20 is relatively high. Furthermore, the vibrations of the two first drum components 20 slightly superimpose on each other when transmitted to the support body 10, thereby significantly increasing the vibration amplitude of the support body 10.

[0041] It should be explained that the aforementioned shortest distance L1 between two adjacent first drum components 20 in the left-right direction denotes the shortest distance between the outer edges of two adjacent first drum components.

[0042] Particularly in the case of a standard housing with a width of 590 mm to 610 mm, when accommodating two drum bodies and other components within the limited width range, the space between the opposing arc-shaped surfaces of the first drum components 20 can be fully utilized to arrange the remaining components by maintaining a specific distance between the two first drum components 20, thus making the structure more compact.

[0043] 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.

[0044] In some embodiments, reference is made to Fig. 3. The ratio of the shortest distance L1 between two adjacent first drum components 20 in the left-right direction to the dimension L of the support body 10 in the left-right direction is not greater than 0.4, i.e., L1 / L ≤ 0.4. In this embodiment, 0.2 ≤ L1 / L ≤ 0.4 applies, where, for example, the dimension of the support body 10 corresponds to the dimension of a standard housing. For L = 600 mm, 240 mm ≥ L1 ≥ 120 mm applies; for example, L1 is: 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, or 240 mm, etc.

[0045] In this embodiment, with the same width of the support body 10 in the left-right direction (for example, with a standard housing width of 600 mm), it is achieved that the distance between two adjacent first drum components 20 in the left-right direction is not excessively large, thus ensuring that the support body 10 has a sufficiently large space to accommodate the first drum components 20, which advantageously contributes to the fact that the outer diameter of a single first drum component 20 has an appropriate dimension.

[0046] 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.

[0047] In some embodiments, with reference to Fig. 3, the ratio of the outer diameter (hereinafter referred to as D1, see Fig. 3) The dimension L of the first drum component 20 for the carrier body 10 in the left-right direction is 0.23~0.28, that is, 0.23≤D1 / L≤0.28. Using the dimension of the carrier body 10 as a standard housing dimension as an example: for L = 600 mm, 168 mm≥D1≥138 mm, for example, D1 is 138 mm, 140 mm, 145 mm, 150 mm, 154 mm, 160 mm, 165 mm, or 168 mm, etc.

[0048] In this embodiment, it is made possible for the first laundry treatment chamber 20a of the first drum component 20 to have a relatively large volume, while at the same time a relatively small dimension in the left-right direction of the support body 10 is assumed, which is advantageous for maintaining an appropriate distance between two adjacent first drum components 20 in the left-right direction.

[0049] In some embodiments, see Fig. 3, is the ratio of the outer diameter D1 of the first drum component 20 to the dimension (hereinafter referred to as H, see Fig. 3) of the support body 10 in the vertical direction 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 a relatively small dimension in the vertical direction of the support body 10 is taken into account, thereby leaving more space below the first drum component 20 which can be used to accommodate the second drum component 30 described below, which helps to ensure that the support body 10 maintains a reasonable dimension in the vertical direction.

[0050] Particularly in a standard housing, whose height is typically 800 mm to 860 mm, the ratio of the outer diameter of the first drum component 20 to the height of the support body is set at 0.18–0.26. The first drum component 20 is designed as a small drum for processing smaller laundry items, compared to a conventional large drum with a capacity of 10 kg. This ratio of the outer diameter of the first drum component 20 to the height of the support body ensures both a specific capacity for the first drum component 20 and allows for the additional integration of a standard-sized large drum within the standard housing.

[0051] Here, the dimension of the carrier body 10 is used as an example 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 a 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. 1 to Fig. 3. The laundry treatment device 1 is equipped with a second drum component 30, which is arranged in the installation space 10a, wherein at least two first drum components 20 are positioned to the left and above, and to the right and above, the second drum component 30. In this embodiment, the arrangement of the second drum component 30 below the at least two first drum components 20 by means of the vertically stacked construction reduces the transverse space of the laundry treatment device 1, thereby suitably dimensioning the overall dimensions of the laundry treatment device 1. This is advantageous because the support body 10 can accommodate the second drum component 30 and the at least two first drum components 20 in the left-right direction without its dimensions in the left-right direction exceeding the corresponding dimensions of the standard housing.

[0054] It is understandable that at least two first drum components 20 are located to the left and above, and to the right and above, the second drum component 30, thereby dividing the space above the second drum component 30 into a left upper space and a right upper space, with some of the first drum components 20 located in the left upper space and others in the right upper space. Since the space immediately above the second drum component 30 is smaller compared to the left and right upper spaces, this arrangement allows the space immediately above the second drum component 30 to be bypassed, and the positions to the left and right above the second drum component 30 to be optimally utilized. For example, the second drum component 30 has a second laundry treatment chamber 30a. The second laundry treatment chamber 30a serves to hold laundry.

[0055] 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.

[0056] 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.

[0057] 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. In some embodiments, with reference to Fig. 3, the ratio of the outer diameter (hereinafter referred to as D2, see Fig. 3) The dimension L of the second drum component 30 is specified as 0.82~1.0 in the left-right direction for the support body 10, meaning 0.82≤D2 / L≤1.0. Using the standard housing dimension of the support body 10 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.

[0058] In the relevant technology, single-drum washing machines with standard housing dimensions typically have an outer diameter (of the outer drum) of 480 mm to 570 mm.

[0059] 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, at least two additional small drums can be added without reducing the volume of the large drum, thus improving the space utilization of the laundry treatment machine 1.

[0060] 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 standard housing dimensions, 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.

[0061] 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.

[0062] In some embodiments, with reference to Fig. 3, the first drum component 20 and the second drum component 30 in projection 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.

[0063] 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.

[0064] For example, the number of first drum components 20 is two, with part of the second drum component 30 located in the space between the two first drum components 20. This causes the projection of the part of the second drum component 30 located between the two first drum components 20 onto the vertical plane B to overlap with the projection of the first drum component 20, forming the aforementioned overlap area.

[0065] In some embodiments, see Fig. 3 is the ratio of the dimension (hereinafter referred to as H1, see Fig. 3) of the overlap area in the vertical direction to the outer diameter D1 of the first drum component 20 0.1~0.4, that is 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.

[0066] 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.

[0067] 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.

[0068] 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. This means that the first drum component 20 can rotate about the axis of the other end of the first connecting element 40. It should be noted that the rotatable connection does not necessarily result in 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.

[0069] The axis of rotation of the first connecting element 40 can be referred to as the first axis (see Z in Fig. 2).

[0070] 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.

[0071] 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.

[0072] It should be understood that the first axis can be designed as a virtual straight line.

[0073] 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.

[0074] 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.

[0075] 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).

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] In some embodiments, with reference to Fig. 3, is the ratio of the distance 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 (hereinafter referred to as L2, see Fig. 3) the outer diameter D1 of the first drum component 20 is 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.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] It is understandable that by reducing the distance between the first position 40a and the second position 50a in the left-right direction, the space occupied by the first connecting element 40 and the second connecting element 50 can be reduced, and furthermore, in the case of eccentric loading of the first drum component 20, the difference in 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.

[0094] The following will refer to Fig. 4 Two comparative examples and three embodiments of the present application are briefly explained.

[0095] The comparative examples and implementation examples in Fig. All 4 are simulated with increasing rotational speed of the left drum from low to high, with the non-rotating right drum serving as the object of investigation.

[0096] It needs to be explained that in Fig. 4 the ordinate represents the vibration amplitude (unit: mm); the abscissa represents the ratio of the shortest distance L1 between two adjacent first drum components 20 in the left-right direction to the dimension L of the support body 10 in the left-right direction.

[0097] The maximum vibration of the left drum refers to the maximum vibration amplitude of the first drum component 20 located in the upper left corner (hereinafter: left drum) during the passage of the resonance peak in operation. The maximum vibration of the right drum refers to the maximum vibration amplitude of the first drum component 20 (hereinafter: right drum), which is located in the upper right corner when the left drum is at its maximum vibration.

[0098] The steady-state vibration of the left drum refers to the maximum vibration amplitude of the left drum after passing through the resonance peak and after one minute. The steady-state vibration of the right drum refers to the maximum vibration amplitude of the right drum when the left drum is in steady-state vibration. That is, when the left drum is in maximum vibration, the maximum vibration of the right drum is measured. When the left drum is in steady-state vibration, the steady-state vibration of the right drum is measured. Example 1: L1 / L is 0.1. Example 2: L1 / L is 0.5. Exemplary embodiment 1 of the present application: L1 / L is 0.2. Example 2 of the present application: L1 / L is 0.3. Example 3 of the present application: L1 / L is 0.4.

[0099] Out of Fig.Figure 4 shows that in embodiments 1 to 3, the maximum vibration and the steady-state vibration of the right drum are lower. This means that, with the vibration of the left drum remaining unchanged, the vibration transmitted from the left drum to the right drum is lower in the range of L1 / L = 0.2 to 0.4.

[0100] 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.

[0101] 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 two first drum components (20), all of which are arranged in the installation space (10a), wherein the at least two first drum components (20) are spaced apart from each other along a left-right direction of the laundry treatment device (1); wherein a ratio of a shortest distance between two adjacent first drum components (20) in the left-right direction to a dimension of the support body (10) in the left-right direction is not less than 0.

2. [2] Laundry treatment device (1) according to claim 1, characterized by , that the ratio of the shortest distance between two adjacent first drum components (20) in the left-right direction to the dimension of the carrier body (10) in the left-right direction is not greater than 0.

4. [3] Laundry treatment device (1) according to claim 1, characterized by , that the ratio of the outer diameter of the first drum component (20) to the dimension of the carrier body (10) in the left-right direction is 0.23~0.

28. [4] 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 vertical direction of the laundry treatment device (1) is 0.17~0.

21. [5] Laundry treatment device (1) according to claim 1, characterized by , that the laundry treatment device (1) comprises a second drum component (30) which is arranged in the installation space (10a), wherein the at least two first drum components (20) are arranged to the left above and to the right above the second drum component (30); a ratio of the outer diameter of the second drum component (30) to the dimension of the support body (10) in the left-right direction is 0.82~1.0, and / or, a ratio of the outer diameter of the second drum component (30) to a dimension of the support body (10) in a vertical direction is 0.6~0.

75. [6] Laundry treatment device (1) according to claim 1, characterized by , that the laundry treatment device (1) comprises a second drum component (30) which is arranged in the installation space (10a), wherein the at least two first drum components (20) are each arranged to the left above and to the right above the second drum component (30); 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). [7] Laundry treatment device (1) according to claim 6, characterized by , that the ratio of a dimension of the overlap area in a vertical direction of the laundry treatment device (1) to an outer diameter of the first drum component (20) is 0.1~0.

4. [8] Laundry treatment device (1) according to any one of claims 1-7, 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); wherein 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), the vertical median plane being a vertical plane passing through an axis of the first drum component (20); wherein an elasticity of the second connecting element (50) is greater than an elasticity of the first connecting element (40). [9] Laundry treatment device (1) according to claim 8, characterized by , that the ratio of a distance in the left-right direction 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) to the outer diameter of the first drum component (20) is 0.7~1.

4. [10] Laundry treatment device (1) according to claim 8, characterized by, that the support body (10) comprises a deck support (11) and two first side supports (12) spaced apart from each other in the 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), the deck support (11) and the two first side supports (12) enclosing the installation space (10a); and the first connecting element (40) being positioned closer to the first side support (12) relative to the second connecting element (50). [11] Laundry treatment device (1) according to claim 8, characterized by, that the support body (10) comprises a top support (11) and two first side supports (12) spaced apart from each other in the left-right direction of the laundry treatment device (1), the top support (11) being connected at its two opposite ends in the left-right direction to the two first side supports (12), and the top 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 top 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 top support (11) or the first side support (12).

Images