Clothing processing equipment
The clothing treatment apparatus addresses drum collision issues by using a smaller first drum and strategic projection placement with a door seal and damping member, ensuring effective vibration absorption and prevention of collisions.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- XIAOMI TECH (WUHAN) CO LTD
- Filing Date
- 2025-10-23
- Publication Date
- 2026-05-12
AI Technical Summary
Existing clothing treatment apparatuses with dual drums face issues where the smaller drum vibrates eccentrically, colliding with the door body glass, risking damage due to the larger drum's vibrations.
A clothing treatment apparatus with a first drum and a second drum, where the first drum has a smaller diameter than the second, and a door body projection positioned to avoid overlap with the inner drum, equipped with a door seal and vibration damping member to prevent collisions.
Prevents collisions between the inner drum and door body projections by positioning the projection outside the inner drum's opening, reducing the risk of damage and enhancing sealing and vibration damping effects.
Smart Images

Figure 2026076981000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of household appliance technology, and particularly to a clothing treatment apparatus.
Background Art
[0002] With the development of science and technology, people's functional requirements for clothing treatment apparatuses are becoming increasingly diverse. In related technologies, a clothing treatment apparatus generally includes a housing and two drums (a large drum and a small drum) installed inside the housing. The two drums are connected to each other to form an integral body, and the two drums share one vibration damping member attached to the large drum. However, in such a configuration, when the large drum performs vibrations with a large eccentricity such as dehydration, the small drum follows the large drum and vibrates eccentrically, colliding with the door body glass corresponding to the small drum, and there is a risk of damage to the door body glass or the small drum.
Summary of the Invention
Problems to be Solved by the Invention
[0003] To overcome the problems existing in related technologies, the present disclosure provides a clothing treatment apparatus.
Means for Solving the Problems
[0004] According to an embodiment of the present disclosure, there is provided a clothing treatment apparatus, a housing having an opening, and a first drum and a second drum installed in the housing, wherein the first drum includes an outer drum and an inner drum, the inner drum has an inner drum opening, the outer drum has an outer drum opening, the first drum and the second drum, a vibration damping member connected between at least one of the first drum and the second drum and the housing, and a door seal installed at the outer drum opening, and the diameter of the first drum is smaller than the diameter of the second drum.
[0005] In either case, the garment processing device includes a door body, the door body has a projection, and one end of the projection toward the inner drum is located outside the housing space of the inner drum.
[0006] In either case, the garment processing device includes a door body, the door body has a projection, and the radial projections of the door body and the inner drum do not overlap.
[0007] In either case, the door seal has a sealing wrinkle portion, The door body is provided with a projection that extends toward the inner drum, In the axial direction of the inner drum, one end of the projection toward the inner drum is located between the inner drum opening and the sealing wrinkle portion.
[0008] In either case, the straight-line distance D1 between one end of the projection toward the inner drum and the opening of the inner drum satisfies D1 ≤ 10 mm.
[0009] In either case, in the axial direction of the inner drum, one end of the projection toward the inner drum is located between the inner drum opening and the outer drum opening.
[0010] In either case, in the axial direction of the inner drum, one end of the projection toward the inner drum is located between the outer drum opening and the sealing wrinkle portion of the door seal.
[0011] In either case, an inner drum ring is provided in the inner drum opening, and the inner drum ring includes a circular ring and a snap ring. The circular ring is attached to the inner wall of the inner drum adjacent to the inner drum opening, the snap ring extends radially outward from the outer edge of the circular ring, and a circular chamfer is formed between the snap ring and the circular ring.
[0012] In either case, one end of the projection toward the inner drum is located between the end face of the snap ring away from the inner drum and the sealing wrinkle portion of the door seal.
[0013] In either case, the projection includes a large-diameter portion and a small-diameter portion connected to each other, and the large-diameter portion is located on the side of the small-diameter portion away from the inner drum.
[0014] In either case, the sealing wrinkle portion of the door seal abuts against the stepped surface between the large diameter portion and the small diameter portion.
[0015] Either further includes a stopper rib provided on the outer circumference of the projection.
[0016] In either case, the stopper rib is configured in an annular shape that surrounds the projection.
[0017] In either case, the radial distance D2 between the stopper rib and the projection satisfies 5mm ≤ D2 ≤ 10mm.
[0018] In either case, the stopper rib and the door seal are integrally molded.
[0019] In either case, the stopper rib is located between the outer drum opening and one end of the projection facing the inner drum.
[0020] The technical solutions provided by the embodiments of the present disclosure can include the following beneficial effects: The clothing treatment apparatus provided by the present disclosure positions one end of the protrusion of the door body facing the inner drum between the inner drum opening and the sealing wrinkle portion, that is, by positioning one end of the protrusion facing the inner drum outside the accommodation space of the inner drum. In that case, there is a part where the protrusion and the inner drum do not overlap in the radial projection, so even if the inner drum causes eccentric vibration, it will not collide with the protrusion. The first drum with a relatively small diameter follows the eccentric vibration of the second drum with a large diameter and vibrates particularly violently. Moreover, the inner drum of the small drum has a relatively small diameter and a shorter distance to the protrusion. Therefore, by ensuring that the end face of the door body's protrusion close to the opening does not exceed the end face where the opening of the inner drum is provided, the risk of collision between the inner drum and the protrusion can be effectively avoided.
[0021] It should be understood that the above general description and the following detailed description are merely exemplary and explanatory and do not limit the present disclosure.
Brief Description of the Drawings
[0022] The drawings here are incorporated into the specification, form a part of the specification, show embodiments conforming to the present disclosure, and are used to interpret the principles of the present disclosure together with the specification.
[0023] [Figure 1] FIG. 1 is a cross-sectional view of a clothing treatment apparatus according to an exemplary embodiment. [Figure 2] FIG. 2 is a partial enlarged view of part A in FIG. 1.
Description of Reference Numerals
[0024] 1: Housing, 2: First drum, 21: Outer drum, 22: Inner drum, 23: Opening, 3: Second drum, 4: Protrusion, 41: Large-diameter portion, 42: Small-diameter portion, 5: Inner drum ring, 51: Circular ring, 52: Snap ring, 6: Door seal, 61: Sealing wrinkle portion, 7: Stopper rib. [Modes for carrying out the invention]
[0025] This section provides a detailed description of exemplary embodiments, which are illustrated in the drawings. Where the following description relates to the drawings, unless otherwise noted, the same numbers in different drawings indicate the same or similar elements. The embodiments described below in the exemplary embodiments do not represent all embodiments conforming to the present invention. Rather, they are merely examples of apparatus and methods that correspond to some aspects of this disclosure, which are described in detail in the appended claims.
[0026] As shown in Figure 1, exemplary embodiments of the present disclosure provide a garment processing apparatus, which may be a dual-drum washing machine, a dual-drum dryer, a dual-drum washer-dryer, and the like.
[0027] Referring to Figures 1 and 2, the present disclosure exemplifies a garment processing apparatus, which includes a housing 1 having an opening 23, a first drum 2 and a second drum 3 installed inside the housing 1, a vibration damping member connected between at least one of the first drum 2 and the second drum 3 and the housing 1, a door body installed in the opening 23, and a door seal 6. The first drum 2 and the second drum 3 are connected to each other, specifically by a combination of connecting members and fastening members, or by directly welding them together, and the present disclosure does not impose any limitations on the method of connection between the first drum 2 and the second drum 3. The first drum 2 includes an outer drum 21 and an inner drum 22, the inner drum 22 having an inner drum opening, the outer drum having an outer drum opening, the inner drum 22 and the outer drum 21 being fitted together, the outer drum 21 of the first drum 2 being connected to the second drum 3 (following vibrations), and the inner drum 22 being mounted inside the outer drum 21 and being able to move in accordance with the outer drum 21. The door body is installed in the opening 23 and can open or close the opening 23. The door body has a projection 4 extending in the direction of the opening 23, and the projection 4 can be made of visible glass, visible plastic, or the like. The door seal 6 is installed in the outer drum opening and has a sealing wrinkle portion 61. The projection 4 is in close contact with the sealing wrinkle portion 61, specifically the part of the projection 4 that is away from the inner drum 22 is in contact with the sealing wrinkle portion 61. Here, in the axial direction of the inner drum 22, one end of the projection 4 facing the inner drum 22 is located between the inner drum opening and the sealing wrinkle portion 61. That is, one end of the projection 4 facing the inner drum 22 is located on the side away from the inner drum opening and away from the body of the inner drum 22. That is, one end of the projection 4 facing the inner drum 22 is located outside the housing space of the inner drum 22, thereby avoiding radial collision with the projection 4 when the inner drum 22 undergoes radial eccentric motion.
[0028] In the embodiments of this disclosure, it should be noted that the door seal 6 can be configured in an annular shape to match the shape of the outer drum opening, and the door seal 6 is usually manufactured from a rubber material. By installing the door seal 6, when the door body is closed, the projection 4 can come into contact with the door seal 6 to achieve a sealing effect, and the door seal 6 can prevent the projection 4 from colliding with other parts. The structure, material, and function of the door seal 6 are well known to those skilled in the art and will not be described in detail here. Furthermore, the sealing wrinkle portion 61 refers to the wrinkled structure formed on the door seal 6 and has the following functions: Enhanced sealing: The wrinkle portion increases the flexibility and elasticity of the door seal, thereby allowing it to adhere better to the door frame, and as a result improving the sealing effect. Extended service life: By distributing stress, the wrinkle portion reduces direct wear and tear during opening and closing of the door seal, extending its service life. Improved thermal insulation performance: The wrinkle portion can form multiple air layers, improving thermal insulation performance. Adaptable to deformation: The wrinkled portion allows the door seal 6 to deform under different temperature and humidity conditions, ensuring that it maintains a good sealing effect in various environments.
[0029] In this disclosure, the vibration damping member typically includes a suspension spring and a damper, the suspension spring being suspended between the drum and the housing 1, and the damper being supported between the drum and the housing 1. In this disclosure, the provision of a vibration damping member between at least one of the first drum 2 and the second drum 3 and the housing 1 means that the first drum 2 and the second drum 3 share a set of vibration damping members. Specifically, the suspension spring and damper may both be provided on the first drum 2, or both on the second drum 3, or the suspension spring and damper may be provided separately on the first drum 2 and the second drum 3, respectively. Sharing a set of vibration damping members between the first drum 2 and the second drum 3 is advantageous in reducing unfavorable effects such as vibration superposition that would occur if independent vibration damping members were placed on each drum, thereby improving the vibration damping effect. Furthermore, sharing a set of vibration damping members between the first drum 2 and the second drum 3 is also advantageous in reducing the number of vibration damping members used, simplifying the structure within the garment processing apparatus, and lowering design and manufacturing costs.
[0030] What needs to be explained is that the end of the projection 4 facing the inner drum 22 refers to the end of the projection 4 that is closest to the inner drum 22, that is, if this end does not extend beyond the inner drum opening (located outside the inner drum 22), then it can be ensured that the entire projection 4 does not extend beyond the inner drum opening (both are located outside the inner drum 22) and is positioned between the inner drum opening and the sealing wrinkle portion 61.
[0031] By using the above technical solution, the garment processing apparatus provided in this disclosure positions one end of the projection 4 of the door body toward the inner drum 22 between the inner drum opening and the sealing wrinkle portion 61, that is, positions one end of the projection 4 toward the inner drum 22 outside the housing space of the inner drum 22. In this case, there is no overlapping portion between the projection 4 and the inner drum 22 in radial projection, so even if the inner drum 22 experiences eccentric vibration, it will not collide with the projection 4. If we consider the first drum 2 as the one with a relatively smaller diameter among the two drums, it will vibrate particularly violently in response to the eccentric vibration of the larger second drum 3, and the inner drum 22 of the smaller drum has a relatively small diameter and is closer to the projection 4. Therefore, by ensuring that the end face of the projection 4 of the door body that is close to the opening 23 does not exceed the end face of the inner drum 22 where the opening 23 is provided, the risk of collision between the inner drum 22 and the projection 4 can be effectively avoided.
[0032] In the embodiments of this disclosure, the straight-line distance D1 from one end of the projection 4 facing the inner drum 22 to the inner drum opening can satisfy D1 ≤ 10 mm, specifically, this straight-line distance can be 1 mm, 5 mm, or 10 mm. The purpose of setting an upper limit on this straight-line distance is to prevent the distance from the inner drum opening from becoming excessive, thereby preventing the projection 4 from securing the clothing inside the inner drum 22, and preventing the clothing from falling out of the inner drum 22 and entering the gap between the projection 4 and the inner drum 22. In some other embodiments, this straight-line distance D1 can also satisfy D1 ≤ 8 mm, and specifically, it can be adaptively designed according to the actual situation.
[0033] Furthermore, in the embodiments of this disclosure, in the axial direction of the inner drum 22, one end of the projection 4 facing the inner drum 22 can be located between the inner drum opening and the outer drum opening. Alternatively, one end of the projection 4 facing the inner drum 22 can be located between the outer drum opening and the sealing wrinkle portion 61, and can be adaptively selected as required by the actual circumstances.
[0034] Referring to Figures 1 and 2, in embodiments of the present disclosure, an inner drum ring 5 may be further provided at the inner drum opening, and the inner drum ring 5 may include a circular ring 51 and a snap ring 52. Here, the circular ring 51 is attached to the inner wall of the inner drum 22 adjacent to the inner drum opening, and the snap ring 52 may extend radially outward along the radial direction from the outer edge of the circular ring 51, forming a circular chamfer between the snap ring 52 and the circular ring 51. Since the inner drum 22 is made of sheet metal, the end with its opening 23 is usually relatively sharp and pointed, and by installing the inner drum ring 5 with a circular chamfer at this position, it is possible to prevent the "sharp and pointed" end of the inner drum 22 from being exposed to the outside and damaging clothing or causing harm to the user. The inner drum ring 5 may also provide mounting positions for other related parts, and the present disclosure does not limit the specific structure of the inner drum ring 5, which can be adaptively designed according to actual needs, and the structure and principle of the inner drum ring 5 are well known to those skilled in the art.
[0035] Here, it is necessary to explain that the "outer edge of the circular ring 51" refers to the side edge that protrudes from the inner drum 22. During installation, the inner drum ring 5 is simply inserted from the outside of the inner drum 22 into the inside of the inner drum 22 (inserting the circular ring 51), and the snap ring 52 is positioned on the outside of the end face of the inner drum 22 that corresponds to the inner drum opening, and should be in firm contact with the inner drum 22.
[0036] Furthermore, in the embodiments of this disclosure, one end of the projection 4 facing the inner drum 22 can be positioned between the end face of the snap ring 52 away from the inner drum 22 and the sealing wrinkle portion 61, that is, one end of the projection 4 facing the inner drum 22 is located outside the inner drum ring 5. This design makes it possible to avoid the inner drum ring 5 rotating in response to eccentric vibration of the inner drum 22 and colliding with the projection 4.
[0037] Referring to Figure 2, in the embodiment of this disclosure, the projection 4 may include a large-diameter portion 41 and a small-diameter portion 42 connected to each other, the large-diameter portion 41 being located on the side of the small-diameter portion 42 away from the inner drum 22, and the sealing wrinkle portion 61 being able to abut against the stepped surface between the large-diameter portion 41 and the small-diameter portion 42. The large-diameter portion 41 and the small-diameter portion 42 may be configured to be of equal diameter, or they may be configured to be expansive, with the diameter gradually increasing in the direction away from the inner drum opening, as shown in Figure 2. Such an expansive design is advantageous in preventing clothing from getting caught between the door seal 6 and the small-diameter portion 42.
[0038] Referring to Figure 2, in an embodiment of the present disclosure, the garment processing apparatus may further include a stopper rib 7 provided on the outer circumference of the projection 4, where the stopper rib 7 is located on the outer circumference of the projection 4 and does not form the projection 4. The stopper rib 7 extends radially from the outside to the inside toward the small diameter portion 42. By providing the stopper rib 7, it is possible to prevent garments in the inner drum 22 from moving into the gap between the door seal 6 and the small diameter portion 42.
[0039] In the embodiments of this disclosure, the stopper rib 7 can be configured in an annular shape surrounding the projection 4. This configuration ensures that the stopper rib 7 is present at every position in the circumferential direction, thereby enhancing the blocking (stopping) effect. In some other embodiments, the stopper rib 7 may be configured in a strip-like shape and multiple ribs may be provided, with the multiple stopper ribs 7 evenly distributed along the outer circumference of the small-diameter portion 42 in the circumferential direction.
[0040] This disclosure does not impose any restrictions on the radial distance at which the stopper rib 7 is separated from the small-diameter portion 42. For example, in the embodiments of this disclosure, the radial distance D2 at which the stopper rib 7 is separated from the projection 4 can satisfy 5 mm ≤ D2 ≤ 10 mm, and specifically can be 5 mm, 7.5 mm, or 10 mm. The purpose of setting an upper limit on the radial distance D2 is to ensure its stopping effect, and the purpose of setting a lower limit is to prevent the stopper rib 7 and the small-diameter portion 42 from interfering with each other when the door body is opened and closed due to the distance from the small-diameter portion 42 being too close.
[0041] This disclosure does not impose any limitations on the method of forming the stopper rib 7. For example, in the embodiments of this disclosure, the stopper rib 7 and the door seal 6 can be integrally molded. Such a design can reduce the number of parts and the difficulty of assembly, thereby lowering production costs. In some other embodiments, the stopper rib 7 and the door seal 6 can also be integrally formed by assembly. In the embodiments of this disclosure, the stopper rib can be located between the outer drum opening and one end of the projection facing the inner drum.
[0042] In the embodiments of this disclosure, the diameter of the first drum 2 may be smaller than the diameter of the second drum 3. That is, the first drum 2 is used as a small drum in a garment processing device, and its diameter can be 120 mm to 200 mm. In this case, the radial distance between the inner drum 22 and the projection 4 is relatively small. Since the second drum 3 is a large drum and therefore has large vibration energy, if the second drum 3 vibrates eccentrically, it can cause relatively violent eccentric motion in the first drum 2, making it easier for the inner drum 22 and the projection 4 to collide. Therefore, the technical solution of this disclosure is particularly effective when used with a first drum 2 that has a relatively small diameter.
[0043] Those skilled in the art will readily conceive of other embodiments of the Disclosure, taking into consideration the Specification and the practice of the methods disclosed herein. This application is intended to encompass any variations, uses, or adaptive changes of the Disclosure, which will include common or customary technical means known in the art but not disclosed herein, in accordance with the general principles of the Disclosure. The Specification and Examples should be considered merely illustrative, and the true scope and spirit of the Disclosure are defined by the appended Claims.
[0044] This disclosure is not limited to the exact structure described above and shown in the drawings, and it should be understood that various modifications and changes are possible without departing from its scope. The scope of this disclosure is limited only to the attached claims.
Claims
1. A clothing processing device, A housing with an opening, A first drum and a second drum are installed inside the housing, wherein the first drum includes an outer drum and an inner drum, the inner drum has an inner drum opening, and the outer drum has an outer drum opening, the first drum and the second drum, A vibration damping member connected between at least one of the first drum and the second drum and the housing, Includes a door seal installed in the outer drum opening, The diameter of the first drum is smaller than the diameter of the second drum. A garment processing apparatus characterized by the following:
2. The garment processing apparatus includes a door body, The door body is provided with a projection, and one end of the projection facing the inner drum is located outside the housing space of the inner drum. The garment processing apparatus according to feature 1.
3. The garment processing apparatus includes a door body, The door body is provided with a projection, and the projections of the door body and the inner drum do not overlap in the radial direction. The garment processing apparatus according to feature 1.
4. The garment processing apparatus includes a door body, The aforementioned door seal has a sealing wrinkle portion, The door body is provided with a projection that extends toward the inner drum, In the axial direction of the inner drum, one end of the projection toward the inner drum is located between the inner drum opening and the sealing wrinkle. The garment processing apparatus according to feature 1.
5. The straight-line distance D between one end of the projection facing the inner drum and the opening of the inner drum 1 is D 1 Satisfying ≤ 10 mm The garment processing apparatus according to any one of claims 2 to 4.
6. In the axial direction of the inner drum, one end of the projection toward the inner drum is located between the inner drum opening and the outer drum opening. The garment processing apparatus according to any one of claims 2 to 4.
7. In the axial direction of the inner drum, one end of the projection toward the inner drum is located between the outer drum opening and the sealing wrinkle portion of the door seal. The garment processing apparatus according to claim 2 or 3.
8. An inner drum ring is provided in the inner drum opening, and the inner drum ring includes a circular ring and a snap ring. The circular ring is attached to the inner wall of the inner drum adjacent to the inner drum opening, the snap ring extends radially outward from the outer edge of the circular ring, and a circular chamfer is formed between the snap ring and the circular ring. The garment processing apparatus according to any one of claims 2 to 4.
9. One end of the projection toward the inner drum is located between the end face of the snap ring away from the inner drum and the sealing wrinkle of the door seal. The garment processing apparatus according to feature 8.
10. The projection includes a large-diameter portion and a small-diameter portion connected to each other, and the large-diameter portion is located on the side of the small-diameter portion that is away from the inner drum. The garment processing apparatus according to any one of claims 2 to 4.
11. The sealing wrinkle portion of the door seal abuts against the stepped surface between the large diameter portion and the small diameter portion. The garment processing apparatus according to feature 10.
12. The projection further includes a stopper rib provided on its outer circumference. The garment processing apparatus according to any one of claims 2 to 4.
13. The stopper rib is configured in an annular shape that surrounds the projection. The garment processing apparatus according to feature 12.
14. The radial distance D between the stopper rib and the projection. 2 5mm ≤ D 2 Satisfying ≤ 10 mm The garment processing apparatus according to feature 13.
15. The stopper rib and the door seal are integrally molded. The garment processing apparatus according to feature 12.
16. The stopper rib is located between the outer drum opening and one end of the projection facing the inner drum. The garment processing apparatus according to feature 12.