Washing machine

By installing a removable filter screen on the side wall of the washing machine casing, combined with a corrugated pipe, graded filter screen, and sealing gasket design, the problem of inconvenient filter screen maintenance is solved, achieving convenient cleaning and efficient filtration, improving the user experience and component life of the washing machine.

CN224077799UActive Publication Date: 2026-04-03NINGBO JIDE ELECTRICAL APPLIANCE
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-18
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The filter screen at the air inlet of the fan in the existing washing machine drying duct is inconvenient to maintain and clean, and the disassembly process can easily damage the washing machine.

Method used

The filter screen is located on the side wall of the housing and is designed to be detachable. It is connected to the fan and air inlet through a corrugated pipe. It is equipped with coarse and fine filters for graded filtration. Sealing gaskets are used to ensure tight connections, and the inner wall of the pipe is reinforced to enhance strength.

Benefits of technology

Users can easily clean and maintain the filter, reducing operational difficulty and risk of damage, improving filtration accuracy and drying efficiency, extending component life, and enhancing user experience and aesthetics.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224077799U_ABST
    Figure CN224077799U_ABST
Patent Text Reader

Abstract

The utility model provides a washing machine which comprises a shell, a cover plate is arranged in the shell, a drying air duct is arranged on the cover plate, a fan is arranged at the lower end of the drying air duct, an air inlet is formed in the left side wall of the fan, a filter screen is arranged on the side wall of the shell, and the filter screen is communicated with the air inlet through a pipeline. The fan is used for driving external air to sequentially pass through the filter screen and the air inlet and then enter the drying air duct to dry clothes; the filter screen is arranged on the side wall of the shell, compared with a traditional design, a user can touch the filter screen more easily, cleaning and maintenance are more convenient, the operation difficulty is lowered, and the risk that the washing machine is damaged due to cleaning is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and more specifically, to a washing machine. Background Technology

[0002] In modern households, washer-dryer combos are widely favored for their convenience. Currently, most common washer-dryer combos have a drying air duct inside the casing. A fan installed in this duct plays a crucial role in air circulation during the drying process. An air inlet is located on the side wall of the fan, equipped with a filter. The filter's main function is to filter the incoming air, preventing debris such as clothing fibers and dust from entering the inlet, thus ensuring smooth airflow within the drying duct and the normal operation of components such as the fan, as illustrated in patent CN114481518B.

[0003] However, this design has significant drawbacks. Since the filter is located inside the washing machine casing, it is extremely inconvenient to clean and maintain it once a lot of debris accumulates on it during daily use. Even professional repairmen need to use special tools and may even need to disassemble part of the washing machine casing to reach the filter. This not only increases the difficulty of operation for users, but also may damage the washing machine and affect its normal service life if not handled carefully during disassembly, causing great trouble for users. Utility Model Content

[0004] In view of this, the present invention aims to propose a washing machine to solve the problem of inconvenient maintenance and cleaning of the filter screen at the air inlet of the fan in the drying air duct of the existing washing machine.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A washing machine includes a housing, a cover plate inside the housing, a drying air duct on the cover plate, a fan at the lower end of the drying air duct, an air inlet on the left side wall of the fan, a filter screen on the side wall of the housing, and a pipe connecting the filter screen and the air inlet. The fan drives outside air to pass through the filter screen and the air inlet sequentially before entering the drying air duct to dry clothes.

[0007] This application places the filter screen on the side wall of the casing, which is more accessible to users than traditional designs, making cleaning and maintenance more convenient, reducing the difficulty of operation, and reducing the risk of damage to the washing machine due to cleaning.

[0008] Furthermore, the filter screen is detachably mounted on the housing.

[0009] Users can easily remove the filter from the casing and clean it directly without the need for professional tools or complicated operations, reducing the difficulty of maintaining the washing machine and providing a better user experience.

[0010] Furthermore, the pipeline is configured as a corrugated pipe.

[0011] Corrugated pipes can act as a buffer and shock absorber, reducing the impact of fan vibration on pipe connections and preventing problems such as loosening or detachment of connections due to vibration.

[0012] Furthermore, one end of the pipeline is detachably connected to the filter screen, and the other end is detachably connected to the fan.

[0013] This design allows users to easily remove the filter for cleaning, greatly improving maintenance convenience. Similarly, when the fan needs cleaning or inspection, the tubing can be removed from the fan, making fan maintenance even more convenient.

[0014] Furthermore, the filter screen has the same surface curvature as the housing.

[0015] This design enhances the overall aesthetics of the washing machine.

[0016] Furthermore, the filter screen includes a coarse filter screen and a fine filter screen, wherein the mesh diameter of the coarse filter screen is larger than that of the fine filter screen, and the coarse filter screen and the fine filter screen are arranged at intervals from left to right.

[0017] The coarse filter has a larger mesh diameter, which can first filter out larger debris, such as larger pieces of fiber and hair that have fallen off clothing. Then, the fine filter can further filter out fine dust particles. This multi-stage filtration method greatly improves the filtration accuracy of impurities in the air, ensuring that the air entering the drying duct is cleaner, reducing the damage of impurities to the internal components of the drying duct, ensuring the normal operation of components such as the fan, and also preventing secondary contamination of clothing during the drying process.

[0018] Furthermore, a sealing gasket is provided between the air inlet and the pipeline to ensure a tight connection between the air inlet and the pipeline.

[0019] The sealing gasket can effectively fill the gap between the air inlet and the duct, preventing air leakage and dust from entering. It ensures that all air filtered by the filter can smoothly enter the drying air duct, avoiding the reduction in drying efficiency caused by air leakage and guaranteeing the drying effect.

[0020] Furthermore, the inner wall of the pipeline is provided with reinforcing ribs to enhance the strength of the pipeline and guide airflow.

[0021] Reinforcing ribs can significantly enhance the strength of pipelines, making them more robust and durable, reducing the risk of deformation or damage due to vibration or compression, extending the service life of pipelines, and reducing maintenance and replacement costs.

[0022] Compared with the prior art, the washing machine of this utility model has the following advantages:

[0023] 1) By placing the filter screen on the side wall of the casing, it is easier for users to access and clean and maintain compared to traditional designs, reducing the difficulty of operation and the risk of damage to the washing machine due to cleaning.

[0024] 2) Users can remove the filter from the housing and clean it directly without professional tools or complicated operations, which reduces the difficulty of maintaining the washing machine and brings a better user experience. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the washing machine described in an embodiment of the present utility model;

[0026] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0027] Figure 3 for Figure 1 A schematic diagram of the structure after removing the outer casing;

[0028] Figure 4 for Figure 3 A schematic diagram of the structure after the pipes have been removed.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Drying air duct; 2. Fan; 21. Air inlet; 3. Filter screen; 4. Piping; 100. Housing; 200. Cover plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only some, not all, of the embodiments of this invention. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "tail end," "head end," and "center," are only used to explain the relative positional relationships and connection situations between components in a specific state. They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where both A and B are satisfied simultaneously.

[0033] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] Example 1

[0035] like Figure 1-4 As shown, this embodiment provides a washing machine, including a housing 100, a cover plate 200 inside the housing 100, a drying air duct 1 in the cover plate 200, a fan 2 at the lower end of the drying air duct 1, an air inlet 21 on the left side wall of the fan 2, a filter screen 3 on the side wall of the housing 100, and the filter screen 3 and the air inlet 21 are connected by a pipe 4. The fan 2 is used to drive outside air to pass through the filter screen 3 and the air inlet 21 in sequence before entering the drying air duct 1 to dry clothes.

[0036] In traditional washing machines, the filter screen at the air inlet of the drying fan is located inside the casing. Cleaning requires professional tools and may even require disassembling part of the casing, making the operation difficult and prone to damaging the washing machine. This application places the filter screen 3 on the side wall of the casing 100. Compared with the traditional design, it is easier for users to access, making cleaning and maintenance more convenient, reducing the difficulty of operation, and reducing the risk of damage to the washing machine due to cleaning.

[0037] Preferably, the fan 2 is equipped with a drive motor, and the output shaft of the drive motor is equipped with blades. The drive motor drives the blades to rotate, which is used to drive the outside air into the drying air duct 1.

[0038] As a preferred example of this application, the filter 3 is detachably mounted on the housing 100.

[0039] Specifically, users can remove the filter 3 from the housing 100 without professional tools or complicated operations, and directly clean it to remove accumulated clothing fibers, dust and other debris, maintain the filtering effect of the filter 3, and thus ensure smooth airflow in the drying duct and normal operation of components such as the fan 2. This design reduces the difficulty of maintaining the washing machine for users, brings a better user experience, and reduces the trouble caused by inconvenient maintenance.

[0040] Preferably, the filter screen 3 and the housing 100 are connected by snap-fit, magnetic connection or screw connection.

[0041] As a preferred example of this application, the pipe 4 is configured as a corrugated pipe.

[0042] Specifically, during the operation of the washing machine, the rotation of fan 2 will generate a certain amount of vibration. The corrugated pipe can play a role in buffering and shock absorption, reducing the impact of fan vibration on the pipe connection parts, avoiding problems such as loosening or falling off due to vibration, ensuring the stability and sealing of air circulation, and extending the service life of the pipe.

[0043] On the other hand, the corrugated pipe has good flexibility, making it more convenient to install and disassemble. During installation, it can be easily bent and adjusted in position to quickly complete the connection with the filter screen 3 and the air inlet 21. When maintenance or replacement of parts is required, it can also be easily disassembled, reducing maintenance difficulty and time costs.

[0044] Preferably, the corrugated pipe is made of materials such as stainless steel, copper alloy, and PVC.

[0045] As a preferred example of this application, one end of the pipe 4 is detachably connected to the filter screen 3, and the other end is detachably connected to the fan 2.

[0046] Specifically, during daily use, the filter screen 3 will accumulate a lot of clothing fibers, dust and other debris, which needs to be cleaned regularly. This design makes it easy for users to remove the filter screen 3 for cleaning, which greatly improves the convenience of maintenance. Similarly, when the fan 2 needs to be cleaned or inspected, the pipe 4 can be removed from the fan 2, making the maintenance of the fan 2 more convenient.

[0047] On the other hand, during the production and assembly of the washing machine, the detachable connection design makes the installation of each component more convenient. Workers can more easily connect the pipe 4 to the filter screen 3 and the fan 2, improving production efficiency. Moreover, when the washing machine is modified or upgraded in the later stage, the position and connection method of each component can be flexibly adjusted according to actual needs.

[0048] As a preferred example of this application, the filter screen 3 has the same surface curvature as the housing 100.

[0049] Specifically, the surface curvature of the filter screen 3 is the same as that of the housing 100, so that when the filter screen 3 is installed on the housing 100, the two can fit perfectly together, presenting a visually integrated and smooth appearance without any abrupt lines or gaps, thus improving the overall aesthetics of the washing machine and meeting the aesthetic requirements of modern consumers for the appearance design of home appliances.

[0050] As a preferred example of this application, the filter screen 3 includes a coarse filter screen and a fine filter screen, wherein the mesh diameter of the coarse filter screen is larger than that of the fine filter screen, and the coarse filter screen and the fine filter screen are arranged at intervals from left to right.

[0051] Specifically, the coarse filter has a larger mesh diameter, which can first filter out larger debris, such as larger pieces of fiber and hair that have fallen off the clothes. Then, the fine filter can further filter out fine dust particles. This tiered filtration method greatly improves the filtration accuracy of impurities in the air, ensuring that the air entering the drying duct 1 is cleaner, reducing the damage of impurities to the internal components of the drying duct, ensuring the normal operation of components such as the fan 2, and also preventing secondary pollution of clothes during the drying process.

[0052] The coarse filter intercepts larger impurities, reducing the filtration pressure on the fine filter and making it less prone to clogging by large particles. This extends the lifespan of the entire filter 3. Compared to a single filter, this design maintains good filtration performance for a longer period, reducing the hassle of frequent filter replacements.

[0053] As a preferred example of this application, a sealing gasket is provided between the air inlet 21 and the pipe 4, the sealing gasket being used to ensure a tight connection between the air inlet 21 and the pipe 4.

[0054] Specifically, the sealing gasket can effectively fill the gap between the air inlet 21 and the pipe 4 to prevent air leakage and dust from entering. During the process of the fan 2 driving air into the drying duct 1, only by ensuring a tight connection between the air inlet 21 and the pipe 4 can all the air filtered by the filter screen 3 be ensured to enter the drying duct 1 smoothly, avoiding the reduction in drying efficiency due to air leakage and ensuring the drying effect.

[0055] In addition, the sealing gasket has a certain buffering effect, which can reduce the vibration generated by the fan 2 during operation and transmit it to the pipe 4, preventing the connection parts from loosening due to vibration, thereby making the connection of the entire drying system more stable, ensuring the stability of the washing machine during operation, and reducing noise and abnormal shaking.

[0056] As a preferred example of this application, the inner wall of the pipe 4 is provided with reinforcing ribs to enhance the strength of the pipe 4 and guide airflow.

[0057] Specifically, during washing machine operation, internal vibrations occur, and pipe 4 needs to withstand a certain pressure. The reinforcing ribs significantly enhance the strength of pipe 4, making it more robust and durable, reducing the risk of deformation or damage due to vibration and pressure, extending pipe lifespan, and reducing maintenance and replacement costs. The reinforcing ribs also guide airflow, allowing air passing through pipe 4 to flow more smoothly to the air inlet 21, reducing air turbulence and resistance, improving drying efficiency. Simultaneously, stable airflow ensures uniform drying, avoiding localized overheating or insufficient drying, and improving the quality of clothing drying.

[0058] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A laundry machine characterized by, The utility model provides a clothes drying device, including shell (100), be provided with cover (200) in shell (100), cover (200) is provided with drying air duct (1), the lower end of drying air duct (1) is provided with fan (2), the left side wall of fan (2) is provided with air inlet (21), the lateral wall of shell (100) is provided with filter screen (3), filter screen (3) with air inlet (21) between through pipeline (4) intercommunication, fan (2) is used to drive outside air to enter drying air duct (1) after passing filter screen (3), air inlet (21) in proper order, and clothes is dried.

2. A laundry washing machine according to Claim 1, characterized in that The filter screen (3) is detachably installed on the shell (100).

3. A laundry washing machine according to Claim 1, characterized in that The pipeline (4) is a corrugated pipe.

4. A laundry washing machine according to Claim 3, characterized in that One end of the pipeline (4) is detachably connected with the filter screen (3), and the other end is detachably connected with the fan (2).

5. The laundry machine according to claim 1, characterized in that, The filter screen (3) has the same surface curvature as the shell (100).

6. A laundry machine according to claim 1, characterized in that, The filter screen (3) includes a coarse filter screen and a fine filter screen, the mesh diameter of the coarse filter screen is larger than that of the fine filter screen, and the coarse filter screen and the fine filter screen are arranged from left to right at intervals.

7. A laundry washing machine according to Claim 3, characterized in that A sealing gasket is arranged between the air inlet (21) and the pipeline (4), and the sealing gasket is used for tightly connecting the air inlet (21) and the pipeline (4).

8. A laundry washing machine according to Claim 3, characterized in that The inner wall of the pipeline (4) is provided with a reinforcing rib for enhancing the strength of the pipeline (4) and guiding air flow.