A washing machine with self-cleaning function

Abstract

The application provides a washing machine with a self-cleaning function, comprising: an inner drum and an outer drum coaxially sleeved, the outer drum having an outer drum through hole penetrating through the thickness of the outer drum; a spraying device installed at the position of the outer drum through hole; a water storage device installed outside the outer drum and reused as a counterweight; a pressure increasing device installed outside the outer drum, connected with the water storage device and the spraying device through a pipeline; and a water inlet device for providing water for the outer drum and reused for providing water for the water storage device; wherein the water storage device stores water obtained through the water inlet device, the pressure increasing device extracts the water in the water storage device and forms pressurized water after pressure increasing, and the pressurized water is sprayed on the outer surface of the inner drum and the inner surface of the outer drum through the spraying port of the spraying device. The application solves the technical problem of poor cleaning effect of the outer wall of the inner drum of the traditional washing machine.

Description

Technical Field

[0001] This application relates to the field of clothing processing equipment technology, and more specifically, to a washing machine with a self-cleaning function. Background Technology

[0002] With social development and the improvement of people's living standards, the popularity and usage of clothing processing equipment are increasing. Nowadays, drum washing machines, as a highly efficient and low-wear clothing processing device, have become an indispensable household appliance in people's daily lives.

[0003] Conventional front-loading washing machines consist of an outer tub for holding water and an inner tub that uses tumbling and shaking motions to wash clothes. The area between the inner and outer tubs is not easily cleaned by ordinary users and is prone to accumulating dirt and grime. Over time, stains can accumulate on the outer surface of the inner tub and the inner surface of the outer tub, forming deposits that can cause secondary contamination of clothes during subsequent use and may lead to health problems.

[0004] The existing solutions for drum washing machines include the following:

[0005] High-temperature drum cleaning: Sterilizes through specific self-cleaning procedures, such as heating to temperatures above 90°C, but has limited effectiveness in removing physical dirt that has already adhered to the outer wall of the inner drum.

[0006] Spray technology: Spray nozzles are usually set at the door ring to rinse doors, windows and door seals, but the water pressure and coverage are limited, making it difficult to effectively clean the outer wall of the entire inner tank.

[0007] Disassembly and cleaning: The operation is extremely complicated and cannot be completed by ordinary users. Frequent disassembly can also damage the machine.

[0008] Therefore, the poor cleaning effect of traditional washing machines on the outer wall of the inner drum is a technical problem that urgently needs to be solved by those skilled in the art.

[0009] The information disclosed in the background section is only intended to enhance the understanding of the background of this application, and therefore may contain information that is not part of the prior art known to those skilled in the art. Summary of the Invention

[0010] This application provides a washing machine with a self-cleaning function to solve the technical problem that traditional washing machines have poor cleaning effects on the outer wall of the inner drum.

[0011] This application provides a washing machine with a self-cleaning function, comprising:

[0012] An inner tub and an outer tub are coaxially connected, wherein the outer tub has a through hole that extends through the thickness of the outer tub;

[0013] The spraying device is installed at the through hole of the outer barrel;

[0014] A water storage device is installed on the outside of the outer tank and is reused as a counterweight.

[0015] A pressurization device is installed on the outside of the outer tank and connected to the water storage device and the spraying device through a pipeline;

[0016] The water inlet device is used to provide water to the outer tank and also to provide water to the water storage device;

[0017] The water storage device obtains water through the water inlet device for storage, and the pressurization device draws water from the water storage device and pressurizes it to form pressurized water. The pressurized water is sprayed into the outer surface of the inner tub and the inner surface of the outer tub through the spray nozzle of the spray device to form a high-pressure water jet.

[0018] In practice, the water storage device includes:

[0019] A water storage tank and a water storage tank inlet control valve are connected by a water storage tank inlet pipe, and the water storage tank inlet control valve is connected to one of the outlets of the water inlet device.

[0020] In practice, the pressurizing device is connected to the water storage tank through the pressurizing device inlet pipe and to the spraying device through the pressurizing device outlet pipe.

[0021] In practice, the spraying device includes:

[0022] The high-pressure pipeline and the spray nozzle of the spray device installed on the high-pressure pipeline, wherein the high-pressure pipeline contains pressurized water;

[0023] The spray nozzles on the spray device are used to spray the outer side of the inner barrel and the inner side of the outer barrel.

[0024] In practice, the outer tub includes a front tub and a rear tub.

[0025] The outer barrel front barrel and the outer barrel rear barrel each have the outer barrel through hole, and the spray device barrel body spray port is configured for each of the outer barrel through holes.

[0026] In practice, the outer tub also has a through hole at the front end of the outer tub that extends through the thickness of the front end of the outer tub;

[0027] The spraying device also includes:

[0028] The spray nozzle at the front end of the spray system is connected to the high-pressure pipeline via a spray device connecting pipe and is located at the through hole at the front end of the outer barrel.

[0029] The high-pressure water jet from the spray nozzle at the front end sprays the front end of the inner tub.

[0030] In practice, the outer tub also has a through hole at the rear end of the outer tub that extends through the thickness of the rear end of the outer tub;

[0031] The spraying device also includes:

[0032] The spray nozzle at the rear end of the spray system is connected to the high-pressure pipeline via a spray device connecting pipe and is located at the through hole at the rear end of the outer barrel.

[0033] The high-pressure water jet from the spray nozzle at the rear end of the spray system sprays the rear end of the inner tub.

[0034] In practice, there are multiple spraying devices, and each spraying device is symmetrically and evenly distributed along the circumference of the outer tank;

[0035] Each of the spray devices is equipped with a water storage device and a pressurization device.

[0036] The implementation also includes a control module, which is preset with a first washing program that self-cleans during the washing stage, a second washing program that self-cleans during the rinsing stage, and a third washing program that self-cleans during both the washing and rinsing stages.

[0037] When the washing program is running in the washing stage, the self-cleaning function is activated at the preset time when the washing stage is about to be completed.

[0038] When the washing program is running in the rinsing stage, the self-cleaning function is activated at the preset time when the rinsing stage is about to be completed.

[0039] The self-cleaning includes:

[0040] Control the pressurization device to start working and control the pressurization device to work for a preset time.

[0041] In implementation, the control module is also used for:

[0042] When the water level in the water tank drops to a preset low level, the water inlet control valve of the water tank is opened to allow water to enter until the water level in the water tank rises to a preset high level.

[0043] The embodiments of this application, by adopting the above technical solutions, have the following technical effects:

[0044] The washing machine with self-cleaning function of this application, firstly, achieves self-cleaning by spraying high-pressure water jets onto the outer surface of the inner tub, which is direct and effective, ensuring a good cleaning effect on the outer surface of the inner tub. Secondly, the multifunctional components used in the self-cleaning function reduce the number of parts in the washing machine; for example, the water storage device is reused as a counterweight, and the water inlet device is used to provide water to the outer tub and the water storage device. This makes the structure of the washing machine with tub self-cleaning function of this application simple, easy to manufacture and install, and keeps costs low.

[0045] This application achieves the combined effects of "structural reuse, high-pressure rinsing, and intelligent self-cleaning". While ensuring the cleanliness and hygiene of the washing machine itself, it improves energy efficiency and space utilization, and solves the technical problems of easy dirt accumulation and difficult cleaning of drum washing machines during long-term use. It has good application prospects and market value. Attached Figure Description

[0046] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0047] Figure 1 This is a schematic diagram of the washing machine with self-cleaning function according to this application;

[0048] Figure 2 This is a schematic diagram of the assembled outer tub, water storage device, pressurizing device, and spraying device of the washing machine with self-cleaning function according to this application.

[0049] Figure 3 This is a schematic diagram of the outer tub of the washing machine with self-cleaning function according to this application;

[0050] Figure 4 This is a schematic diagram of the water storage device and the pressurization device of the washing machine with self-cleaning function according to this application;

[0051] Figure 5 This is a schematic diagram of the spray device of the washing machine with self-cleaning function according to this application.

[0052] Figure label:

[0053] Box 1,

[0054] Bucket module 2, inner bucket 201, outer bucket 202, front outer bucket 2021, rear outer bucket 2022.

[0055] Water inlet device 4, water inlet control valve 401, water inlet pipe 402, detergent mixing chamber 403, water inlet corrugated pipe 404.

[0056] Control module 5,

[0057] Drainage device 6, drainage corrugated pipe 611, drainage pipe 612,

[0058] Water storage tank 7, water inlet control valve 701, water inlet pipe 702

[0059] Boosting device 8, boosting pump 801, boosting device inlet pipe 802, boosting device control valve 803, boosting device outlet pipe 804.

[0060] Spraying device 9, spray nozzle 901 at the front end of the spraying device, spray nozzle 902 at the rear end of the spraying device, spray nozzle 903 on the body of the spraying device, and connecting pipe 904 of the spraying device. Detailed Implementation

[0061] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0062] Example 1

[0063] like Figures 1 to 5 As shown in the figure, a washing machine with a self-cleaning function according to an embodiment of this application includes:

[0064] The inner tub 201 and the outer tub 202 are coaxially connected, and the outer tub has an outer tub through hole 203 that penetrates the thickness of the outer tub;

[0065] Spraying device 9 is installed at the through hole of the outer barrel;

[0066] A water storage device is installed on the outside of the outer tank and is reused as a counterweight.

[0067] A pressurization device is installed on the outside of the outer tank and connected to the water storage device and the spraying device through a pipeline;

[0068] The water inlet device 4 is used to provide water to the outer tank and also to provide water to the water storage device;

[0069] The water storage device obtains water through the water inlet device for storage, and the pressurizing device draws water from the water storage device and pressurizes it to form pressurized water. The pressurized water is sprayed into a high-pressure water jet through the spray nozzle of the spraying device and sprayed onto the outer surface of the inner barrel 201 and the inner surface of the outer barrel 202.

[0070] The washing machine with a self-cleaning function in this application embodiment achieves a highly efficient and water-saving self-cleaning function for the outer wall of the inner drum through the coordinated design of a spray device, a water storage device, and a pressurizing device, which significantly improves the hygiene performance and reliability of the washing machine.

[0071] Specifically, the water used for spraying comes from an independently set water storage device. This device is not only used to store cleaning water, but also reused as a counterweight for the washing machine. This makes full use of space, simplifies the structure, reduces the complexity of the overall weight distribution design, and improves operational stability.

[0072] Furthermore, the pressurization device connects the water storage device and the spray device via pipelines, pressurizing the water in the storage device and delivering it to the spray nozzles of the spray device to form a high-pressure water jet with sufficient impact force, significantly enhancing the cleaning effect. During the self-cleaning process, the spray nozzles of the spray device can spray high-pressure water jets onto the outer surface of the inner tub 201 and the inner surface of the outer tub 202, effectively washing away dirt, fiber residue, and microorganisms adhering to these surfaces, avoiding secondary pollution problems caused by structural dead corners in traditional washing machines.

[0073] High-pressure water is sprayed between the inner tub 201 and the outer tub 202, finally falling into the outer tub and exiting the washing machine through the outer tub's outlet and the washing machine's drain system. There is no need to separately install an outlet and drain system for the outer tub for self-cleaning; the outlet and drain system of the outer tub used for washing and rinsing can be shared.

[0074] The water storage device and the pressurization device work together to provide pressurized water to the spray device, so that the pressure of the high-pressure water flow from the spray nozzle of the spray device (such as between 0.5MPa and 0.8MPa) is higher than the pressure of ordinary household water (usually between 0.2MPa and 0.4MPa). This makes the high-pressure water flow from the spray nozzle of the self-cleaning washing machine higher than the pressure of ordinary household water, thus achieving a better cleaning effect.

[0075] The water inlet device supplies water for normal washing of the outer tub while simultaneously replenishing the water storage device, achieving water resource sharing and efficient utilization. This eliminates the need for a separate water supply path, reducing costs and optimizing pipeline layout. Furthermore, the water in the storage device, which is reused as a counterweight, is used during the self-cleaning process. After use, water is added again, ensuring continuous water exchange within the storage device. This prevents the growth of bacteria from prolonged water storage and avoids waste, and the constantly replaced water is used to rinse the inner tub.

[0076] The washing machine itself has a water inlet device to provide water for washing and rinsing, that is, to provide water to the outer tub. In order to achieve the self-cleaning function, the washing machine with the self-cleaning function of this application does not need to set up a separate water inlet device for self-cleaning, but shares the water inlet device of the washing machine itself. It only needs to add a water outlet to the water inlet device to provide water to the water storage device, which simplifies the structure of the water inlet device of the washing machine.

[0077] This application achieves the combined effects of "structural reuse, high-pressure rinsing, and intelligent self-cleaning". While ensuring the cleanliness and hygiene of the washing machine itself, it improves energy efficiency and space utilization, and solves the technical problems of easy dirt accumulation and difficult cleaning of drum washing machines during long-term use. It has good application prospects and market value.

[0078] The washing machine with self-cleaning function of this application, firstly, achieves self-cleaning by spraying high-pressure water jets onto the outer surface of the inner tub, which is direct and effective, ensuring a good cleaning effect on the outer surface of the inner tub. Secondly, the multifunctional components used in the self-cleaning function reduce the number of parts in the washing machine; for example, the water storage device is reused as a counterweight, and the water inlet device 4 is used to provide water to the outer tub and the water storage device. This makes the structure of the washing machine with tub self-cleaning function of this application simple, easy to manufacture and install, and keeps costs low.

[0079] During implementation, such as Figure 2 and Figure 4 As shown, the water storage device includes:

[0080] The water storage tank 7 and the water storage tank inlet control valve 701 are connected by a water storage tank inlet pipe 702, and the water storage tank inlet control valve 701 is connected to one of the outlets of the water inlet device 4.

[0081] The water storage device achieves precise control of the water intake process and orderly management of water volume through the coordinated structure of the water storage tank and the water inlet control valve.

[0082] The water inlet control valve for the storage tank is located between the outlet of the water inlet device and the inlet pipe of the storage tank. As a control unit for the water flow into the storage tank, it can be flexibly opened or closed according to the system's operating status or control signals, effectively controlling the timing and duration of water inflow. This allows the storage tank and the water within it to act as a counterweight. The storage tank is used to temporarily store water from the water inlet device. During intermittent system operation or sudden increases in water consumption, it acts as a buffer and stabilizes pressure, ensuring a continuous and stable water supply to subsequent booster devices and preventing problems such as dry suction or pressure instability caused by fluctuations in the upstream water supply.

[0083] The water storage device combines the precise control of the water inlet control valve with the water storage function of the water tank, which not only improves the responsiveness and operational stability of the water system, but also optimizes the overall water supply rhythm, providing a reliable water supply guarantee for high-pressure spraying, and significantly enhancing the continuity, safety and energy efficiency of the equipment.

[0084] Specifically, water tank 7 is made of antibacterial material.

[0085] The water tank is made of antibacterial materials, which effectively inhibits the growth and reproduction of bacteria, mold, and other microorganisms on its surface, preventing secondary pollution caused by long-term water storage. The antibacterial material significantly improves the hygiene and safety of the water tank, ensuring clean water supplied to the spray system, preventing odors and pipe blockages, and extending system maintenance cycles. Simultaneously, the antibacterial water tank works synergistically with the self-cleaning function, achieving antibacterial control from the water storage stage, further ensuring the cleanliness and reliability of the washing machine's self-cleaning process, and improving the overall health performance and user experience of the machine.

[0086] During implementation, such as Figure 4 As shown, the pressurization device 8 includes:

[0087] The booster pump 801, the booster control valve 803, and the booster inlet pipe 802 are provided. The water storage tank 7 and the inlet of the booster pump 801 are connected through the booster inlet pipe 802, and the booster control valve 803 is installed on the booster inlet pipe 802.

[0088] The booster outlet pipe 804 is located between the outlet of the booster pump 801 and the inlet of the spray device.

[0089] Thus, a water inlet control valve 701 is installed upstream of the water storage tank 7, and a booster control valve 803 is installed downstream of the water storage tank 7. The water inlet control valve upstream of the water storage tank, which acts as a counterweight, precisely controls the replenishment process to the water storage tank; the booster control valve downstream regulates the flow of water from the water storage tank to the booster pump. This upstream and downstream dual-valve coordinated control structure achieves independent and precise management of the water inlet and outlet of the water storage tank: the inlet control valve opens and closes according to the water level in the tank, ensuring a stable water supply for the counterweight and preventing overflow, thus ensuring its proper function as a counterweight; the booster control valve opens as needed for self-cleaning, ensuring an orderly water supply before the booster system starts, avoiding idling or pressure surges. This design not only improves the safety and response accuracy of the water system but also effectively saves water resources through on-demand water supply, while maintaining the continuity of the counterweight function and the stability of the washing machine's operation, enhancing the overall automation control level and operational reliability.

[0090] During implementation, such as Figure 4and Figure 5 As shown, the spray device 9 includes:

[0091] The high-pressure pipeline and the spray nozzle 903 of the spray device installed on the high-pressure pipeline, the high-pressure pipeline contains pressurized water;

[0092] The spray nozzle 903 on the spray device is used to spray the outer side of the inner barrel and the inner side of the outer barrel.

[0093] The spray system includes a high-pressure pipeline and spray nozzles 903 mounted on it. Water pressurized by a booster device flows through the high-pressure pipeline, providing sufficient pressure for effective spraying. The position and orientation of the spray nozzles 903 are optimized to provide directional spraying to the outer surface of the inner tub and the inner surface of the outer tub during operation, effectively washing away dirt and residue adhering to these surfaces. By utilizing pressurized water, not only is the spray coverage and impact force increased, but the cleaning ability for complex curved areas of the tub is also enhanced. This achieves highly efficient rinsing of the gaps between the inner and outer tubs, as well as the outer and inner surfaces of both tubs, significantly improving the thoroughness of self-cleaning and overall cleanliness.

[0094] During implementation, such as Figure 2 and Figure 3 As shown, the outer tub includes a front tub 2021 and a rear tub 2022;

[0095] The outer tub front tub 2021 and outer tub rear tub 2022 each have an outer tub through hole 203, and the spray device tub body spray nozzle 903 is configured for each outer tub through hole 203.

[0096] The inner tub is composed of a front inner tub and a rear inner tub, while the outer tub is composed of a front outer tub 2021 and a rear outer tub 2022, forming a double-layer tub structure. This is a common structural form for the inner and outer tubs of a drum washing machine.

[0097] Correspondingly, the outer front tub 2021 and the outer rear tub 2022 each have an outer tub through hole 203. The outer tub through hole 203 extends axially and provides a directional channel for the water flow output of the spray device, ensuring that the spray range covers the outer wall of the inner front tub and the inner wall of the outer front tub, as well as the gap between them.

[0098] The spray nozzle 903 of the spray device sprays water onto the outer side of the inner front barrel and the outer side of the inner rear barrel through the corresponding outer barrel through hole 203, the inner front barrel 2021 and the inner rear barrel 2022.

[0099] During implementation, such as Figure 2 and Figure 5As shown, the outer tub also has a through hole at the front end of the outer tub that extends through the thickness of the front end of the outer tub;

[0100] The spraying device 9 also includes:

[0101] The spray nozzle 901 at the front end of the spray system is connected to the high-pressure pipeline through the spray device connecting pipe 904, and is located at the through hole at the front end of the outer barrel.

[0102] The high-pressure water jet from the spray nozzle 901 sprays water onto the front end of the inner tub.

[0103] The outer tub also features a through-hole extending through its front end thickness, and the spray nozzle 901 of the spray device is positioned within this through-hole. The spray nozzle 901 is connected to a high-pressure pipeline via a spray device connecting pipe, enabling precise delivery of pressurized water to the front area of ​​the inner tub. The high-pressure water jet from the spray nozzle 901 directly impacts the front surface of the inner tub, effectively rinsing the edges, around the pivot, and the tub opening where dirt easily accumulates, thus overcoming the shortcomings of traditional circumferential spraying in cleaning the front surface of the inner tub. This design achieves targeted and enhanced rinsing of the front of the inner tub, the front of the outer tub, and adjacent areas, expanding the spray coverage and improving the comprehensiveness and precision of the self-cleaning system. This ensures that the washing machine maintains the cleanliness of the front of the inner tub even after long-term operation, significantly enhancing the integrity and reliability of the overall self-cleaning effect.

[0104] During implementation, such as Figure 2 and Figure 5 As shown, the outer tub also has a through hole at the rear end of the outer tub that extends through the thickness of the rear end of the outer tub;

[0105] The spraying device 9 also includes:

[0106] The spray nozzle 902 at the rear end of the spray system is connected to the high-pressure pipeline via the spray device connecting pipe 904, and is located at the through hole at the rear end of the outer barrel.

[0107] The high-pressure water jet from the spray nozzle 902 at the rear end of the spray system sprays the rear end of the inner tub.

[0108] The outer tub also features a through-hole extending through its rear end thickness, with the spray nozzle 902 of the spray device positioned at this location. The spray nozzle 902 is connected to a high-pressure pipeline via a spray device connecting pipe 904, ensuring a stable flow of pressurized water to the rear end of the inner tub. The high-pressure water jet from the spray nozzle 902 directly targets the rear surface of the inner tub, particularly pleasing areas prone to dirt accumulation and bacterial growth, such as the central support, bearing area, and rear curved surfaces, achieving precise rinsing. This design effectively compensates for the inadequacy of circumferential spraying alone in fully covering the rear end of the inner tub, forming a three-dimensional spray network in conjunction with the front and side sprays, comprehensively expanding the cleaning range. Through multi-directional, multi-angle high-pressure spraying, the ability to remove stains from complex structural areas is significantly enhanced, ensuring a thorough and spotless self-cleaning process, and substantially improving the hygiene level inside the washing machine and the overall efficiency of the self-cleaning system.

[0109] Furthermore, there are multiple spraying devices, and each spraying device is symmetrically and evenly distributed along the circumference of the outer barrel;

[0110] Each of the spray devices is equipped with a water storage device and a pressurization device.

[0111] Multiple spray devices are symmetrically and evenly distributed along the circumference of the outer tub, forming a surrounding, multi-point coordinated spray layout. This enables all-round, no-dead-angle high-pressure rinsing of the inner surface of the inner tub and the surface of the outer tub, significantly improving the uniformity of water flow coverage and the thoroughness of cleaning.

[0112] Each spray unit is independently equipped with a corresponding water storage and pressurization device, forming a modular water storage and pressurization system. This modular system allows each spray point to operate independently without interference, avoiding the uneven spraying problems caused by excessively long pipelines or pressure losses in traditional centralized liquid supply systems. It also avoids the problems of uneven flow distribution and pressure attenuation that can occur when multiple spray units share the same pipeline, ensuring a stable and sufficient water supply to each spray area and maintaining the consistency and reliability of the water pressure at each spray nozzle. Simultaneously, the independently configured pressurization device can be differentiated according to the cleaning needs of different areas (such as time-sharing start-up and variable frequency pressurization), achieving intelligent and precise spraying.

[0113] This design not only improves the system's response speed and pressure stability but also enhances operational reliability—even if one module fails, the remaining units can still function normally, ensuring basic cleaning capabilities. Simultaneously, the distributed arrangement of the water storage and pressurization devices optimizes space utilization and, combined with the counterweight function, achieves structural balance, further improving the washing machine's stability under high-speed operation. The overall solution achieves efficient, stable, and reliable self-cleaning performance, while also offering ease of maintenance and system redundancy.

[0114] Furthermore, the distributed layout of the water storage and pressurization devices shortens the flow path from water storage to spraying, reduces pressure loss along the flow path, and improves system response speed and energy utilization efficiency. Even if one module fails, the remaining modules can still operate normally, demonstrating strong system fault tolerance and high overall reliability. This multi-module collaborative design not only enhances the robustness of the self-cleaning function but also provides a solid hardware foundation for subsequent products in terms of functional expansion and intelligent control.

[0115] Specifically, the diameter of the spray nozzle of the spray device is greater than or equal to 0.5 mm and less than or equal to 2.0 mm to meet the requirements for forming a high-pressure water flow.

[0116] The spray nozzle diameter of the spray device is limited to a range of 0.5 mm or greater and 2.0 mm or less. This significantly increases the water flow velocity under constant fluid flow conditions, effectively creating a high-pressure water flow. This range optimizes the kinetic energy concentration effect of the water flow, ensuring sufficient outlet pressure to flush the outer wall of the inner tank while avoiding clogging problems caused by excessively small nozzles and insufficient pressure caused by excessively large nozzles. This achieves a balance between cleaning efficiency and operational reliability.

[0117] Example 2

[0118] The washing machine with self-cleaning function in this application embodiment has the following features in addition to those in Embodiment 1.

[0119] A washing machine typically performs several main tasks during normal washing, including water intake, washing, rinsing, and spin-drying. The self-cleaning function of the washing machine described in this application can perform any one or both of the washing and rinsing stages.

[0120] In practice, washing machines with drum self-cleaning function also include:

[0121] It also includes a control module, which is preset with a first washing program that self-cleans during the washing stage, a second washing program that self-cleans during the rinsing stage, and a third washing program that self-cleans during both the washing and rinsing stages.

[0122] When the washing program is running in the washing stage, the self-cleaning function is activated at the preset time when the washing stage is about to be completed.

[0123] When the washing program is running in the rinsing stage, the self-cleaning function is activated at the preset time when the rinsing stage is about to be completed.

[0124] The self-cleaning includes:

[0125] Control the pressurization device 8 to start working and control the pressurization device 8 to work for a preset time.

[0126] The self-cleaning function of the drum can be used at various times. The washing machine can automatically select the best time to rinse based on the different washing programs selected by the user, thereby ensuring the best rinsing effect.

[0127] Therefore, in the washing machine with a self-cleaning function of this application, the inner tub 201 may be in motion or stationary when the spray device is spraying, depending on the stage of the washing program.

[0128] In implementation, the control module is also used for:

[0129] When the water level in the water storage tank 7 drops to a preset low water level, the water inlet control valve 701 of the water storage tank is opened to allow water to enter until the water level in the water storage tank 7 rises to a preset high water level.

[0130] The control module monitors the water level in the storage tank in real time. When the water level drops to a preset low level, it automatically triggers the opening of the water inlet control valve, initiating the water replenishment process. When the water level rises back to a preset high level, it promptly closes the water inlet control valve, stopping the water intake. This closed-loop control mechanism achieves automatic adjustment and precise maintenance of the water level in the storage tank, ensuring that the sprinkler system always has sufficient water reserves and avoiding cleaning interruptions or insufficient pressure due to water shortages. Simultaneously, by setting reasonable high and low water level ranges, it effectively prevents frequent starting and stopping of the water inlet valve, extending valve lifespan and optimizing water resource utilization efficiency, reducing waste. This control logic enhances the automation and operational stability of the self-cleaning process, ensuring the system's reliability and energy efficiency under long-term, continuous operation.

[0131] Specifically, the washing machine with self-cleaning function in this application can be a front-loading washing machine, a top-loading washing machine, or a combination of front-loading and top-loading washing machines.

[0132] The booster can be an electric blade rotary centrifugal booster, an electric reciprocating plunger booster, or other booster devices with a power source.

[0133] The layout of the washing machine with self-cleaning function of this application will be described below using a front-loading washing machine or a washer-dryer combo as an example:

[0134] like Figure 1 As shown, the washing machine includes: a cabinet 1 and a tub module 2, a water inlet device 4, a control module 5, a drainage device 6, a water storage tank 7, a pressurizing device 8, and a spraying device 9, all installed inside the cabinet.

[0135] Bucket module 2 includes an inner bucket 201 and an outer bucket 202.

[0136] The water outlet of the outer tub and the drainage device 6 are connected by a drainage corrugated pipe 611.

[0137] The water inlet device 4 mainly includes a water inlet control valve 401, a water inlet pipe 402, a detergent mixing chamber 403, and a water inlet corrugated pipe 404. It is controlled by the control module 5 to introduce external water into the outer tub. When the user starts the washing program, the control module 5 controls the water inlet control valve 401 to open (synchronously or according to a predetermined sequence). Water flows through the water inlet pipe 402, the detergent mixing chamber 403, and the water inlet corrugated pipe 404 into the outer tub of the tub module, and stops entering the tub after the water volume reaches the program set value.

[0138] The washing machine performs the normal washing, rinsing, and spin-drying process according to the washing program selected by the user.

[0139] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0140] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0141] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0142] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0143] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0144] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A washing machine with a self-cleaning function, characterized in that, The application relates to a high-pressure water spraying device for a washing machine, which comprises the following parts: a coaxially sleeved inner drum (201) and outer drum (202), wherein the outer drum has an outer drum through hole (203) penetrating through the thickness of the outer drum; a spraying device (9) installed at the position of the outer drum through hole; a water storage device installed outside the outer drum and used as a counterweight; a pressure boosting device installed outside the outer drum and connected with the water storage device and the spraying device through pipelines; a water inlet device (4) used for providing water for the outer drum and also used for providing water for the water storage device; wherein the water storage device stores water obtained through the water inlet device, the pressure boosting device extracts water from the water storage device and forms pressurized water after pressure boosting, and the pressurized water is sprayed on the outer surface of the inner drum (201) and the inner surface of the outer drum (202) through the spraying opening of the spraying device; the pressure boosting device (8) comprises: a pressure boosting pump (801), a pressure boosting device control valve (803) and a pressure boosting device water inlet pipe (802), the water storage tank (7) of the water storage device is connected with the water inlet of the pressure boosting pump (801) through the pressure boosting device water inlet pipe (802), and the pressure boosting device control valve (803) is arranged on the pressure boosting device water inlet pipe (802); a pressure boosting device water outlet pipe (804) arranged between the water outlet of the pressure boosting pump (801) and the water inlet of the spraying device; the spraying device (9) comprises: a high-pressure pipeline and a spraying device drum body spraying opening (903) arranged on the high-pressure pipeline, wherein the high-pressure pipeline is filled with pressurized water; wherein the spraying device drum body spraying opening (903) is used for spraying the outer side surface of the inner drum and the inner side surface of the outer drum.

2. The laundry machine with a self-cleaning function according to claim 1, characterized in that, the water storage device comprises: a water storage tank (7) and a water storage tank water inlet control valve (701), the water storage tank (7) and the water storage tank water inlet control valve (701) are connected through a water storage tank water inlet pipe (702), and the water storage tank water inlet control valve (701) is connected with one water outlet of the water inlet device (4).

3. The laundry machine with a self-cleaning function according to claim 2, characterized in that, the outer drum comprises an outer drum front drum (2021) and an outer drum rear drum (2022); the outer drum front drum (2021) and the outer drum rear drum (2022) each have the outer drum through hole (203), and the spraying device drum body spraying opening (903) is arranged for each outer drum through hole (203).

4. The laundry machine with a self-cleaning function according to claim 2, wherein, the outer drum also has an outer drum front end through hole penetrating through the thickness of the outer drum front end; the spraying device (9) further comprises: a spraying front end spraying opening (901) connected with the high-pressure pipeline through a spraying device connecting pipe (904) and arranged at the position of the outer drum front end through hole; wherein the high-pressure water flow sprayed by the spraying front end spraying opening (901) sprays the front end of the inner drum.

5. The laundry machine with a self-cleaning function according to claim 4, characterized in that, the outer drum also has an outer drum rear end through hole penetrating through the thickness of the outer drum rear end; the spraying device (9) further comprises: a spraying rear end spraying opening (902) connected with the high-pressure pipeline through a spraying device connecting pipe (904) and arranged at the position of the outer drum rear end through hole; wherein the high-pressure water flow sprayed by the spraying rear end spraying opening (902) sprays the rear end of the inner drum.

6. The laundry machine with a self-cleaning function according to any one of claims 1 to 5, characterized in that, The spraying devices are multiple, and each spraying device is uniformly distributed along the circumference of the outer drum in symmetry; For each spraying device, a water storage device and a pressure increasing device are configured.

7. The laundry washing machine with self-cleaning function according to any one of the claims from 2 to 5, characterized by the fact that, The control module is further provided with a first washing program for self-cleaning in a washing stage, a second washing program for self-cleaning in a rinsing stage, and a third washing program for self-cleaning in both the washing stage and the rinsing stage; When the washing program is running in the washing stage, self-cleaning is started at a preset time when the washing stage is about to be completed; When the washing program is running in the rinsing stage, self-cleaning is started at a preset time when the rinsing stage is about to be completed; The self-cleaning comprises: The control module controls the pressure increasing device (8) to start working and controls the pressure increasing device (8) to work for a preset time length.

8. The laundry machine with a self-cleaning function according to claim 7, characterized in that, The control module is further used for: When the water level of the water storage tank (7) drops to a preset low water level, the control module controls the water inlet control valve (701) of the water storage tank to open water inlet until the water level of the water storage tank (7) rises to a preset high water level.

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