A wall-hung washing machine
By installing overflow and ventilation pipes on the outer drum of the wall-mounted washing machine, the problem of drainage noise was solved, air pressure was stabilized and components were protected, thus improving the user experience.
Patent Information
- Application Number
- CN202111161658.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2041-09-30
AI Technical Summary
Existing wall-mounted washing machines generate noise when the vent pipe draws in air during drainage, affecting the user experience.
A first hole and a second hole are provided on the outer cylinder. The first hole is connected to the drain pipe through an overflow pipe, and the second hole is connected to the external atmospheric pressure through a vent pipe to maintain stable air pressure inside and outside the outer cylinder and reduce noise.
It effectively reduces noise during washing machine drainage, improves user experience, prevents the accumulation of hot and humid air, and protects the components on the back panel of the washing machine.
Smart Images

Figure CN115897165B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of washing machines, and more specifically, relates to a wall-mounted washing machine. Background Technology
[0002] In existing technology, the washing drum assembly of a wall-mounted washing machine is sealed during operation. However, if the internal structure is completely sealed, air pressure can cause the inlet and outlet of the washing machine to fail, necessitating the installation of a drainage overflow structure. Therefore, an overflow hole is provided at the rear of the outer drum, located at the top of the outer drum, primarily for overflow drainage and to facilitate atmospheric pressure connection.
[0003] Existing wall-mounted washing machines use a drain overflow structure with a hole at the back of the outer drum as an overflow port. An overflow pipe runs from this port down the back of the machine and connects to a drain tee. A tee is then added in the middle of the overflow pipe to connect a vent pipe for airflow, balancing atmospheric pressure between the inside of the outer drum and the outside. However, this drain overflow structure generates noise during drainage.
[0004] When the washing machine drains water, the drain tee will make a noise of sucking in air. The noise is caused by the Venturi principle, which is mainly at the port where the vent pipe connects to the outside atmosphere. It directly draws air from the outside atmosphere, producing whistling noises, especially when the flow rate is very fast. This seriously affects the user's life and reduces the user experience.
[0005] In view of this, the present invention is proposed. Summary of the Invention
[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art. The purpose is to provide a wall-mounted washing machine that can solve the problem of noise generated by the air pipe sucking in air when the washing machine is draining.
[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is to provide a wall-mounted washing machine, including an outer drum;
[0008] The first hole is provided on the outer cylinder to connect the inside of the outer cylinder with the outside.
[0009] The second hole is provided on the outer cylinder to connect the inside of the outer cylinder with the outside.
[0010] An overflow pipe, one end of which is connected to the first hole, and the other end of which is used to drain the overflow water from the outer cylinder;
[0011] A vent pipe, one end of which is connected to the second hole, and the other end is used to connect to the external environment to maintain the air pressure balance inside and outside the outer cylinder.
[0012] This invention features a first hole and a second hole connected to the outer drum. The first hole, connected to the drain pipe via an overflow pipe, is used for overflow from the washing machine. Simultaneously, the second hole, also connected to the outer drum, is connected to the external atmospheric pressure via a vent pipe, maintaining stable air pressure inside and outside the outer drum. When the washing machine drains, the drain pipe draws air into the overflow pipe, and the other end of the overflow pipe draws air from the outer drum. Since the outer drum is a relatively sealed space, and the other end of the overflow pipe is not directly connected to external atmospheric pressure, the noise generated is low. Furthermore, the user does not have direct contact with the inside of the outer drum during use, and there is a certain sound insulation effect between the inside and outside of the outer drum, further reducing noise and improving the user experience.
[0013] Furthermore, the second hole is located above the first hole.
[0014] Furthermore, the outer cylinder is provided with a water inlet, which is located above the second hole.
[0015] Furthermore, the outer drum is provided with a back plate at the rear, and the second hole is provided on the back plate; the other end of the vent pipe is connected to the outside of the washing machine in the circumferential direction of the outer drum.
[0016] Preferably, the back panel includes an outer cylinder back panel and an extension plate extending outward from the edge of the outer cylinder back panel, with the first hole and the second hole passing through the outer cylinder back panel.
[0017] Furthermore, the rear panel is provided with an air chamber, which is connected to the outside of the washing machine in the circumferential direction of the outer drum, and the other end of the vent pipe is connected to the air chamber.
[0018] Preferably, the air chamber is located near the outer periphery of the rear back plate.
[0019] Furthermore, the outer peripheral wall of the back panel is provided with ventilation holes that communicate with the air chamber.
[0020] Furthermore, a decorative frame is fitted on the outer periphery of the back panel, and the ventilation hole penetrates the outer peripheral wall of the decorative frame.
[0021] Furthermore, the decorative frame protrudes rearward from the back panel;
[0022] The inner wall of the decorative frame has a protruding first connector, forming the air chamber.
[0023] The other end of the vent tube is connected to the first connector.
[0024] Furthermore, the second hole is provided with a second connector that extends rearward, and one end of the vent tube is connected to the second connector;
[0025] The first connector is located above the second connector, extends inward from the inner sidewall of the decorative frame, and is located behind the second connector.
[0026] Furthermore, the decorative frame includes
[0027] The first ring segment is fitted around the outer periphery of the rear back panel;
[0028] The second ring segment is connected to the first ring segment. The second ring segment extends rearward and protrudes from the back plate. Its inner diameter gradually decreases. The first connector is disposed on the inner wall of the second ring segment.
[0029] The flange is folded inward and extends from the second ring segment;
[0030] A fixing plate, one end of which is connected to the folding plate, and the other end of which extends toward the rear back plate to below the first connector;
[0031] The other end of the vent tube is sleeved on the first connector and snapped between the fixing plate and the first connector.
[0032] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.
[0033] (1) The present invention provides a first hole and a second hole that are connected to the outer drum. The first hole is connected to the drain pipe through an overflow pipe for the washing machine to overflow water. At the same time, the second hole connected to the outer drum is connected to the atmospheric pressure outside the washing machine through a vent pipe. This can keep the air pressure inside and outside the outer drum stable. When the washing machine drains water, the drain pipe draws air into the overflow pipe, and the other end of the overflow pipe draws air from the outer drum. The outer drum is a relatively closed space, and the other end of the overflow pipe is not directly connected to the external atmospheric pressure, resulting in less noise. Furthermore, when the user uses the washing machine, there is no direct contact with the inside of the outer drum. There is a certain sound insulation effect between the inside and outside of the outer drum, which makes the noise even lower and improves the user experience.
[0034] (2) By setting the second hole on the back panel, one end of the vent pipe is connected to the second hole, and the other end of the vent pipe is connected to the outside of the washing machine in the circumferential direction of the outer drum. The air or humid air inside the washing machine is discharged to the outer periphery of the back panel of the washing machine through the vent pipe. This can prevent the air or humid air from accumulating and spreading between the mounting wall and the back panel of the washing machine, avoid the corrosion of the parts on the back panel of the washing machine, and prevent humid air from entering the outer drum of the washing machine and causing damage to the parts.
[0035] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description
[0036] The accompanying drawings, as part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation of the invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:
[0037] Figure 1 This is a schematic diagram of a wall-mounted washing machine according to the present invention;
[0038] Figure 2 This is a schematic diagram of a wall-mounted washing machine according to the present invention;
[0039] Figure 3 This is the present invention. Figure 1 Enlarged view of point A in the middle;
[0040] Figure 4 This is the present invention. Figure 3 A cross-sectional view along the BB direction.
[0041] In the diagram: 1. Outer cylinder; 11. Water inlet; 2. Back panel; 21. Outer cylinder back panel; 211. First hole; 212. Second hole; 213. Second connector; 214. Extension plate; 3. Decorative frame; 31. First connector; 32. Vent hole; 33. First ring section; 34. Second ring section; 35. Flanged plate; 36. Fixing plate; 4. Vent pipe; 5. Overflow pipe; 6. Drain pipe; 7. Drain valve; 8. T-joint.
[0042] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0043] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0044] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.
[0045] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0046] like Figures 1 to 4 As shown, the wall-mounted washing machine of the present invention includes an outer drum 1, a first hole 211, a second hole 212, an overflow pipe 5, and a vent pipe 4.
[0047] The first hole 211 is provided on the outer cylinder 1 to connect the inside of the outer cylinder 1 with the outside. The second hole 212 is provided on the outer cylinder 1 to connect the inside of the outer cylinder 1 with the outside. One end of the overflow pipe 5 is connected to the first hole 211, and the other end is used to drain the overflow water from the outer cylinder 1. One end of the vent pipe 4 is connected to the second hole 212, and the other end is used to connect with the external environment to maintain the air pressure balance inside and outside the outer cylinder 1.
[0048] This invention features a first hole 211 and a second hole 212 connected to the outer drum 1. The first hole 211 is connected to the drain pipe 6 via an overflow pipe 5 for overflowing water from the washing machine. Simultaneously, the second hole 212, also connected to the outer drum 1, is connected to the external atmospheric pressure via a vent pipe 4, maintaining stable air pressure inside and outside the outer drum 1. When the washing machine drains water, the drain pipe 6 draws air into the overflow pipe 5, and the other end of the overflow pipe 5 draws air from the outer drum 1. Since the outer drum 1 is a relatively sealed space, and the other end of the overflow pipe 5 is not directly connected to the external atmospheric pressure, the noise generated is low. Furthermore, the user does not have direct contact with the inside of the outer drum 1 during use, and there is a certain sound insulation effect between the inside and outside of the outer drum 1, further reducing noise and improving the user experience.
[0049] Preferably, the other end of the vent pipe 4 is connected to the outside of the outer drum 1 of the washing machine in the circumferential direction. The washing machine also includes an inner drum (not shown in the figure), located inside the outer drum 1 and coaxially arranged with the outer drum 1.
[0050] The first hole 211 and the second hole 212 are two holes in different positions. The second hole 212 is located above the first hole 211.
[0051] In this invention, the position of the second hole 212 connected to the vent pipe 4 is higher than that of the first hole 211 connected to the overflow pipe 5, so that the water level in the outer drum 1 is lower than that in the first hole 211. The second hole 212 is connected to the external atmospheric pressure, maintaining the balance of air pressure in the outer drum 1, so as to satisfy the washing machine to take in air and drain water at the same time, and ensure the smooth drainage of the washing machine.
[0052] The outer cylinder 1 is provided with a water inlet 11 for water to enter the outer cylinder 1. The water inlet 11 is located above the second hole 212.
[0053] In this invention, the position of the first hole 211 connected to the overflow pipe 5 is lower than the water inlet 11 on the outer drum 1, so that the washing machine can fill water and drain water at the same time, ensuring that the washing machine can achieve the function of overflowing water.
[0054] In this invention, the wall-mounted washing machine is a wall-mounted drum washing machine. The second hole 212 is disposed on the rear wall of the outer drum 1, and more preferably, the first hole 211 is disposed on the rear wall of the outer drum 1.
[0055] Furthermore, a back panel 2 is provided at the rear of the outer drum 1, and the second hole 212 is disposed on the back panel 2. The other end of the vent pipe 4 is connected to the outside of the washing machine in the circumferential direction of the outer drum 1.
[0056] This invention provides a second hole 212 on the back panel 2, with one end of a vent pipe 4 connected to the second hole 212 and the other end connected to the outside of the outer drum 1 of the washing machine. Air or humid air inside the washing machine is discharged to the outer periphery of the back panel 2 through the vent pipe 4. This prevents air or humid air from accumulating and spreading between the mounting wall and the back panel 2, avoids corrosion of the components on the back panel 2, and prevents humid air from entering the outer drum 1 of the washing machine and causing damage to the components.
[0057] A preferred embodiment is that the back panel 2 includes an outer drum back panel 21 and an extension plate 214 extending outward from the edge of the outer drum back panel 21. The first hole 211 and the second hole 212 are through the outer drum back panel 21, and the overflow pipe and the vent pipe 4 can be located on the rear side of the washing machine back panel 2, without occupying space in other parts of the washing machine.
[0058] The rear panel 2 is provided with an air chamber. The air chamber is connected to the outside of the washing machine in the circumferential direction of the outer drum 1, and the other end of the vent pipe 4 is connected to the air chamber.
[0059] This invention provides an air chamber on the back panel 2 of a wall-mounted washing machine. A vent pipe 4, which is connected to the outer drum 1, is connected to the air chamber. Air or humid air inside the washing machine enters the air chamber through the vent pipe 4 and is then discharged to the outer periphery of the back panel 2. This discharge is faster and prevents air or humid air from accumulating and spreading between the mounting wall and the back panel 2. It also prevents corrosion of the components on the back panel 2 and prevents humid air from entering the outer drum 1 and causing damage to the components.
[0060] The air chamber is located near the outer periphery of the rear back plate 2. The air chamber is located on the extension plate 214.
[0061] The first hole 211 and the second hole 212 are located at the upper end of the rear plate 21 of the outer cylinder. The water inlet 11 is located at the top of the peripheral wall of the outer cylinder 1.
[0062] Preferably, the first hole 211 is located near the middle position of the outer cylinder rear plate 21 in the left-right direction, and the second hole 212 is located on one side of the first hole 211 in the left-right direction, slightly higher than the position of the first hole 211.
[0063] More preferably, the upper edge of the second hole 212 is higher than the upper edge of the first hole 211, or the lower edge of the second hole 212 is higher than the upper edge of the first hole 211.
[0064] The overflow pipe 5 extends downwards along the circumference of the outer drum 1 from the first hole 211, and then continues downwards vertically. A drain valve 7 is provided at the bottom of the outer drum 1, which drains water to the outside of the washing machine through a connected drain pipe 6. A tee 8 is provided on the drain pipe 6, and one port of the tee 8 is connected to the overflow pipe 5.
[0065] The back panel 2 and the outer cylinder 1 are integrally formed. The air chamber is located at the upper end of the back panel 2. The air chamber is connected to the upper end of the vent pipe 4.
[0066] The present invention sets the air chamber in the upper part of the back plate 2. The hot and humid air will be discharged into the air chamber through the vent pipe 4. Since the hot and humid air has a high temperature and a relatively low density, it will flow upward and be easily discharged into the air chamber.
[0067] The outer peripheral wall of the back panel 2 is provided with a vent 32, which communicates with the air chamber. The washing machine can draw air into the outer drum 1 through the vent 32, and can also discharge the high-temperature and high-humidity air in the outer drum 1 to the outside of the washing machine.
[0068] The ventilation holes 32 are located on the outer left side wall, right side wall, or top wall of the back panel 2.
[0069] More preferably, the ventilation hole 32 is provided on the outer left or right side wall of the back panel 2.
[0070] Since wall-mounted washing machines may be installed in damp spaces such as bathrooms or where water may splash, by placing the vent 32 on the outer peripheral side wall at the rear of the washing machine, it is possible to prevent water dripping from above the washing machine from entering the washing machine through the vent 32, thus avoiding the problem of a large amount of water accumulating in the air chamber.
[0071] A decorative frame 3 is fitted on the outer periphery of the back panel 2, and the ventilation hole 32 penetrates the outer periphery of the decorative frame 3.
[0072] Preferably, there are multiple vent holes 32, which are evenly distributed on the outer peripheral wall of the decorative frame 3 and are all in communication with the air chamber.
[0073] This invention reduces the noise during operation without affecting the drainage speed / flow rate or the overflow function of the machine. It also has an aesthetically pleasing appearance and improves the user experience.
[0074] One implementation plan is, as follows: Figure 4 As shown, the decorative frame 3 protrudes rearward from the back panel 2. A first connector 31 protrudes from the inner sidewall of the decorative frame 3, forming the air chamber. The other end of the vent pipe 4 is connected to the first connector 31.
[0075] The second hole 212 is provided with a second connector 213 extending backward, and one end of the vent pipe 4 is connected to the second connector 213.
[0076] The first connector 31 is located above the second connector 213 and extends inward from the inner sidewall of the decorative frame 3. The first connector 31 is located behind the second connector 213.
[0077] The decorative frame 3 includes a first ring segment 33 and a second ring segment 34.
[0078] The first ring segment 33 is fitted around the outer periphery of the rear back panel 2. The second ring segment 34 is connected to the first ring segment 33, and extends rearward beyond the rear back panel 2, with its inner diameter gradually decreasing. The first connector 31 is disposed on the inner wall of the second ring segment 34.
[0079] Preferably, the axis of the first connector 31 intersects the extension direction of the second ring segment 34. More preferably, the axis of the first connector 31 is perpendicular to the extension direction of the second ring segment 34.
[0080] The decorative frame 3 also includes a flange 35 and a fixing plate 36.
[0081] The flange 35 extends inward from the second ring segment 34. One end of the fixing plate 36 is connected to the flange, and the other end of the fixing plate 36 extends towards the back plate 2 to below the first connector 31.
[0082] The other end of the vent tube 4 is sleeved on the first connector 31 and snapped between the fixing plate 36 and the first connector 31 to prevent the vent tube 4 from falling off the first connector 31.
[0083] The vent tube 4 bends upward from the second connector 213 and extends to the first connector 31.
[0084] The back panel 2 is circular, rectangular, or rounded rectangular.
[0085] Another implementation is (not shown in the figure), in which the air chamber is located on the inner side of the decorative frame 3, and the vent 32 is located on the outer peripheral wall of the decorative frame 3 and communicates with the air chamber.
[0086] Preferably, the ventilation hole 32 is disposed on the left or right side wall of the decorative frame 3.
[0087] The air chamber is a chamber with a certain extension length. The other end of the vent pipe 4 is inserted into one end of the air chamber, and the other end of the air chamber is connected to the decorative frame 3.
[0088] Furthermore, the wall-mounted washing machine has a heating module, and the water vapor generated by the heating module can be discharged to the outside of the wall-mounted washing machine through the vent pipe 4, the air chamber and the vent hole 32.
[0089] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
Claims
1. A wall-mounted washing machine, characterized in that: Includes, outer barrel; The first hole is provided on the outer cylinder to connect the inside of the outer cylinder with the outside. The second hole is provided on the back plate at the rear of the outer cylinder to connect the inside of the outer cylinder with the outside. The back plate has an air chamber near its outer periphery. The air chamber is located on the upper part of the back plate. A vent is provided on the outer peripheral wall of the back plate and the vent communicates with the air chamber. An overflow pipe, one end of which is connected to the first hole, and the other end of which is used to drain the overflow water from the outer cylinder; A vent pipe, one end of which is connected to the second hole and the other end of which is connected to the air chamber, to maintain the air pressure balance inside and outside the outer cylinder.
2. A wall-mounted washing machine according to claim 1, characterized in that: The second hole is located above the first hole.
3. A wall-mounted washing machine according to claim 2, characterized in that: The outer cylinder is provided with a water inlet, which is located above the second hole.
4. A wall-mounted washing machine according to any one of claims 1-3, characterized in that: The back panel includes an outer cylinder back panel and an extension plate extending outward from the edge of the outer cylinder back panel, with the first hole and the second hole passing through the outer cylinder back panel.
5. A wall-mounted washing machine according to claim 1, characterized in that: A decorative frame is fitted around the outer periphery of the back panel, and the ventilation holes penetrate the outer periphery of the decorative frame.
6. A wall-mounted washing machine according to claim 5, characterized in that: The decorative frame protrudes rearward from the back panel; The inner wall of the decorative frame has a protruding first connector, forming the air chamber. The other end of the vent tube is connected to the first connector.
7. A wall-mounted washing machine according to claim 6, characterized in that: The second hole is provided with a second connector that extends rearward, and one end of the vent tube is connected to the second connector; The first connector is located above the second connector, extends inward from the inner sidewall of the decorative frame, and is located behind the second connector.
8. A wall-mounted washing machine according to any one of claims 5-7, characterized in that: The decorative frame includes: The first ring segment is fitted around the outer periphery of the rear back panel; The second ring segment is connected to the first ring segment. The second ring segment extends rearward and protrudes from the back plate. Its inner diameter gradually decreases. The first connector is disposed on the inner wall of the second ring segment. The flange is folded inward and extends from the second ring segment; A fixing plate, one end of which is connected to the flange plate, and the other end extends toward the back plate to below the first joint; The other end of the vent tube is sleeved on the first connector and snapped between the fixing plate and the first connector.
Citation Information
Patent Citations
Wall-mounted washing machine
CN110747610A
Wall -hanging washing machine's connectivity structure
CN207846039U
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