Washing structure and method for filter screen of clothes dryer

Abstract

The invention discloses a washing structure and a washing method for a filter screen of a clothes dryer, and relates to the technical field of clothes dryers. A washing water tank is fixedly installed on the inner wall of a main machine shell and located above an air inlet pipe, a water outlet of the washing water tank is connected with a washing pipe, and the washing pipe is located in the air inlet pipe; the flushing pipe is connected with a plurality of flushing nozzles; an inlet of the drainage pump is communicated with the interior of the base water storage tank through a pipeline, the base water storage tank is used for storing water generated in the clothes drying process, one outlet of the drainage pump is connected with a water outlet pipe, the water outlet pipe is used for discharging the water stored in the base water storage tank, and the other outlet of the drainage pump is connected with a connecting pipe. An outlet of the connecting pipe is communicated with the flushing water tank, and a spraying valve is mounted on the connecting pipe; after drying is finished, the filter screen can be automatically washed, the cleanliness degree of the filter screen is kept, and a user does not need to frequently clean the filter screen.

Description

Technical Field

[0001] The present invention relates to the technical field of clothes dryers, and in particular to a flushing structure and a flushing method for a filter screen of a clothes dryer. Background Art

[0002] A clothes dryer is a modern household appliance designed to dry clothes quickly and efficiently. It uses the principle of hot air circulation to generate warm airflow through a built-in heating element. These airflows circulate in a closed drum, taking away moisture from the clothes, thereby achieving a fast drying effect.

[0003] The dryer not only greatly shortens the time of drying clothes, but is also particularly suitable for use in rainy or cold and humid weather, ensuring that clothes always remain dry and comfortable. At the same time, it also has a variety of drying modes and temperature settings, which can be personalized according to clothes of different materials and thicknesses, effectively protecting clothing fibers and avoiding shrinkage, deformation or damage.

[0004] In addition, some high-end dryers are equipped with intelligent sensing systems that can automatically detect the humidity of clothes and adjust the drying time, which is energy-saving and worry-free. With the advancement of technology, dryers have become one of the indispensable electrical appliances in modern families, bringing great convenience to people's lives.

[0005] In order to prevent the hair generated by clothes during the drying process from entering the heat exchange system, existing dryers on the market generally use filters to collect and block it. However, the filter needs to be cleaned in time. If it is not cleaned for a long time, the filter will be blocked by too much hair, which will lead to poor drying effect and long drying time. In the actual cleaning process, the hair will also fly around due to rubbing or blowing, or stick to the clothes, or fall somewhere, which will bring inconvenience to the experience. Summary of the invention

[0006] The purpose of the present invention is to provide a flushing structure and method for a dryer filter, so as to solve the technical problem that if the filter is not cleaned for a long time, it will cause the filter to be blocked due to excessive hair, which will lead to unsmooth circulation of air and result in poor drying effect, long drying time and other unfavorable factors.

[0007] A flushing structure for a filter screen of a clothes dryer comprises a main body shell, a base water tank and a drainage pump are fixedly installed at the inner bottom of the main body shell, an air inlet pipe is fixedly connected to the side wall of the main body shell, and a filter screen is arranged at the outlet of the air inlet pipe; a flushing water tank is fixedly installed on the inner wall of the main body shell, the flushing water tank is located above the air inlet pipe, a water outlet of the flushing water tank is connected to a flushing pipe, the flushing pipe is located inside the air inlet pipe, and a plurality of flushing nozzles are connected to the flushing pipe; the inlet of the drainage pump is connected with the inside of the base water tank through a pipeline, the base water tank is used to store water generated during the clothes drying process, one outlet of the drainage pump is connected with a water outlet pipe, and the water outlet pipe is used to discharge the water stored in the base water tank, and the other outlet of the drainage pump is connected with a connecting pipe, the outlet of the connecting pipe is connected to the flushing water tank, and a spray valve is installed on the connecting pipe.

[0008] As a further solution of the present invention: a trumpet-shaped air guide cover is provided at the outlet of the air inlet pipe.

[0009] As a further solution of the present invention: a drain pipe for flushing the filter screen and draining water is arranged below the air inlet pipe.

[0010] As a further solution of the present invention: a baffle cover for receiving filter screen flushing water is provided at the inlet of the drain pipe, and the upper end of the baffle cover is higher than the lower end of the guide cover.

[0011] As a further solution of the present invention: a side wall of the flushing water tank is provided with a booster for boosting the pressure inside the flushing water tank.

[0012] As a further solution of the present invention: a side wall of the air inlet pipe is slidably penetrated and connected with a hard connecting pipe, and a plurality of flushing pipes are provided and fixedly connected to the hard connecting pipe.

[0013] As a further solution of the present invention: the upper end of the hard connecting pipe is connected to the water outlet of the flushing water tank through a telescopic hose, the hard connecting pipe is fixedly connected with an adjustment connecting plate, the lower end of the flushing water tank is fixedly installed with an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the adjustment connecting plate.

[0014] As a further solution of the present invention: a plurality of groups of flushing nozzles are arranged on the flushing pipe, and the installation angles of the plurality of groups of flushing nozzles are different.

[0015] As a further solution of the present invention: a method for flushing a filter of a clothes dryer, which adopts a temperature and humidity sensor for judgment. When it is judged that the flushing threshold value is reached and the load dryness reaches the requirement, the drainage pump starts to extract the remaining water in the base water tank into the flushing water tank for the last time; the flushing nozzle in the air inlet pipe starts to work, and the water in the flushing water tank is sprayed into the filter through the flushing nozzle to start flushing the filter, thereby flushing away the hair debris in the filter.

[0016] As a further solution of the present invention: during the flushing process of the filter, a synchronous humidity sensor starts to work to detect the humidity of the filter until the humidity reaches a stop threshold, and the flushing of the filter is stopped. After the heat pump system and the fan run for another minute, the entire machine stops working.

[0017] Beneficial effects of the present invention:

[0018] (1) The present invention can automatically rinse the filter after drying to keep the filter clean. By rinsing the filter, the user does not need to clean the filter frequently. After flushing the filter, the dryness of the filter can be maintained. The water used is the water in the bottom water tank after drying. There is no need to connect tap water, so the drying water can be reused to save water resources.

[0019] (2) By setting an electric telescopic rod to drive the adjustment connecting plate to move up and down, the height of the hard connecting pipe can be adjusted to adjust the position of the flushing pipe and the flushing nozzle, ensuring that different positions of the filter are fully flushed, effectively ensuring that the hair attached to the filter is removed, and improving the comprehensiveness of hair removal.

[0020] (3) Since hair debris easily adheres to the mesh gaps of the filter screen, flushing in a single direction causes the hair debris to get stuck in the mesh gaps and cannot be removed. Therefore, flushing nozzles in different directions are set to flush the hair debris in different directions, thereby improving the hair debris removal effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Figure 1 is a schematic diagram of a washing structure of a filter screen of a clothes dryer according to the present invention;

[0023] Figure 2 The present invention is a flowchart of a method for flushing a filter screen of a clothes dryer.

[0024] In the figure: 1. Main unit housing; 2. Base water tank; 3. Drain pump; 4. Water outlet pipe; 5. Air inlet pipe; 6. Filter; 7. Air deflector; 8. Air baffle; 9. Drain pipe; 10. Connecting pipe; 11. Flushing water tank; 12. Supercharger; 13. Telescopic hose; 14. Hard connecting pipe; 15. Adjustment connecting plate; 16. Electric telescopic rod; 17. Flushing pipe; 18. Flushing nozzle. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1As shown, the first embodiment of the present invention is a washing structure for a filter screen of a clothes dryer, comprising a main housing 1, a base water storage tank 2 and a drainage pump 3 are fixedly installed at the bottom of the inner side of the main housing 1, an air inlet pipe 5 is fixedly connected to the side wall of the main housing 1, and a filter screen 6 is arranged at the outlet of the air inlet pipe 5; a washing water tank 11 is fixedly installed on the inner wall of the main housing 1, the washing water tank 11 is located above the air inlet pipe 5, and the water outlet of the washing water tank 11 is connected to a washing pipe 17, and the washing pipe 17 is located at the air inlet Inside the pipe 5, a plurality of flushing nozzles 18 are connected to the flushing pipe 17; the inlet of the drain pump 3 is connected to the inside of the base water tank 2 through a pipeline, and the base water tank 2 is used to store water generated during the clothes drying process; one outlet of the drain pump 3 is connected to a water outlet pipe 4, and the water outlet pipe 4 is used to discharge the water stored in the base water tank 2; the other outlet of the drain pump 3 is connected to a connecting pipe 10, and the outlet of the connecting pipe 10 is connected to the flushing water tank 11, and a spray valve is installed on the connecting pipe 10.

[0029] In an optional embodiment, a trumpet-shaped air guide cover 7 is provided at the outlet of the air inlet pipe 5 .

[0030] It should be noted that the trumpet-shaped deflector 7 can, on the one hand, diffuse the hot air and increase the air-drying range of the clothes, thereby ensuring uniform drying of the clothes; on the other hand, it can guide the water flow for flushing the filter 6 so that the water flow can accurately flow into the drain pipe 9 for discharge, thereby preventing water from flowing into other places of the dryer.

[0031] In an optional embodiment, a drain pipe 9 for flushing and draining the filter screen 6 is provided below the air inlet pipe 5 .

[0032] It should be noted that by providing a drain pipe 9 to discharge the hair and water generated by flushing the filter 6, hair can be effectively prevented from flying inside the dryer.

[0033] In an optional embodiment, a baffle 8 for receiving flushing water of the filter screen 6 is provided at the inlet of the drain pipe 9 , and the upper end of the baffle 8 is higher than the lower end of the guide cover 7 .

[0034] It should be noted that the baffle 8 is provided to limit the flow of water after flushing the filter screen 6, thereby ensuring that all the flushing water can flow into the drain pipe 9 for discharge.

[0035] In an optional embodiment, a side wall of the flushing water tank 11 is provided with a booster 12 for boosting the pressure inside the flushing water tank 11 .

[0036] It should be noted that by providing the booster 12 to pressurize the water in the cleaning water tank 11 , the water pressure of the flushing water sprayed from the flushing nozzle 18 is increased, thereby improving the flushing effect of the hair debris on the filter screen 6 .

[0037] In an optional embodiment, a hard connecting pipe 14 is slidably penetrated through the side wall of the air inlet pipe 5 and connected thereto, and a plurality of flushing pipes 17 are provided and fixedly connected to the hard connecting pipe 14 .

[0038] It should be noted that the flushing effect on the filter screen 6 is improved by providing multiple groups of flushing pipes 17 .

[0039] In an optional embodiment, the upper end of the hard connecting pipe 14 is connected to the water outlet of the flushing water tank 11 through a telescopic hose 13, and an adjustment connecting plate 15 is fixedly connected to the hard connecting pipe 14. An electric telescopic rod 16 is fixedly installed at the lower end of the flushing water tank 11, and the output end of the electric telescopic rod 16 is fixedly connected to the adjustment connecting plate 15.

[0040] It should be noted that, by setting an electric telescopic rod 16 to drive the adjustment connecting plate 15 to move up and down, thereby adjusting the height of the hard connecting pipe 14, the position of the flushing pipe 17 and the flushing nozzle 18 can be adjusted, ensuring that different positions of the filter screen 6 are fully flushed, effectively ensuring that the hair debris adhering to the filter screen 6 is removed, and improving the comprehensiveness of hair debris removal.

[0041] In an optional embodiment, the flushing nozzles 18 are provided in multiple groups on the flushing pipe 17, and the installation angles of the multiple groups of flushing nozzles 18 are different.

[0042] It should be noted that since hair debris easily adheres to the mesh gaps of the filter screen 6, flushing in a single direction causes the hair debris to get stuck in the mesh gaps and cannot be removed. Therefore, flushing nozzles 18 in different directions are set to flush the hair debris in different directions, thereby improving the hair debris removal effect.

[0043] See also Figure 2 As shown, the second embodiment of the present invention provides a method for flushing a filter of a clothes dryer, and the specific steps of the flushing method are: using a temperature and humidity sensor to make a judgment, when it is judged that the flushing threshold value is reached and the load dryness reaches the requirement, the drainage pump 3 starts to extract the remaining water in the base water tank 2 into the flushing water tank 11 for the last time; the flushing nozzle 18 in the air inlet pipe 5 starts to work, and the water in the flushing water tank 11 is sprayed into the filter 6 through the flushing nozzle 18 to start flushing the filter 6, and flush away the hair debris in the filter 6.

[0044] It should be noted that.

[0045] In an optional embodiment, during the flushing process of the filter 6, a synchronous humidity sensor starts to work to detect the humidity of the filter 6 until the humidity reaches a stop threshold, and the flushing of the filter 6 is stopped. After the heat pump system and the fan run for another minute, the entire machine stops working.

[0046] Combined with Figure 2 , the program operation logic of the clothes dryer of the present invention is as follows:

[0047] 1. The program runs.

[0048] 2. The drum rotates and the heat pump system starts working.

[0049] 3. Determine RH≤H1: If yes, proceed to step 4; if no, return to step 2.

[0050] 4. The drain pump starts pumping water for the last time and the filter spray valve starts working.

[0051] 5. Rinse the filter for 1 minute.

[0052] 6. The heat pump system and fans continue to work.

[0053] 7. Determine RH≤H: If so, the heat pump system and fan run for 1 minute and go to step 8; if not, return to step 6.

[0054] 8. The program ends.

[0055] The working principle of the present invention is as follows: the cleaning water tank 11 is connected to the filter 6 with a water pipe, and a flushing pipe 17, a flushing nozzle 18 and a humidity sensor are placed at the filter 6. The temperature and humidity sensor is used to determine that when a certain value is reached, the load dryness reaches the requirement, and the drainage pump 3 starts to extract the remaining water in the base water tank 2 into the cleaning water tank 11 for the last time; the flushing nozzle 18 at the filter 6 starts to work, and the water in the cleaning water tank 11 is sprayed into the filter 6 through the flushing nozzle 18 to start flushing the filter, flushing away the hair in the filter 6, and the synchronous humidity sensor starts to work to detect the humidity of the filter 6. Until the humidity RH≤H, the heat pump system and the fan stop working after running for one minute.

[0056] After flushing the hair, the humidity sensor and the heat pump continue to work for one minute so that the filter 6 can remain dry. A drainage pipe 9 is added under the filter to discharge the hair and water out of the whole machine.

[0057] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A washing structure for a filter screen of a clothes dryer, comprising a main housing (1), a base water storage tank (2) and a drainage pump (3) being fixedly mounted on the inner bottom of the main housing (1), an air inlet pipe (5) being fixedly connected to the side wall of the main housing (1), and a filter screen (6) being arranged at the outlet of the air inlet pipe (5); characterized in that: A flushing water tank (11) is fixedly mounted on the inner wall of the main housing (1), the flushing water tank (11) is located above the air inlet pipe (5), the water outlet of the flushing water tank (11) is connected to a flushing pipe (17), the flushing pipe (17) is located inside the air inlet pipe (5), and the flushing pipe (17) is connected to a plurality of flushing nozzles (18); the inlet of the drainage pump (3) is connected to the inside of the base water storage tank (2) through a pipeline, the base water storage tank (2) is used to store water generated during the clothes drying process, one outlet of the drainage pump (3) is connected to a water outlet pipe (4), the water outlet pipe (4) is used to discharge the water stored in the base water storage tank (2), the other outlet of the drainage pump (3) is connected to a connecting pipe (10), the outlet of the connecting pipe (10) is connected to the flushing water tank (11), and a spray valve is installed on the connecting pipe (10).

2. The washing structure of the filter screen of a clothes dryer according to claim 1, characterized in that: A trumpet-shaped air guide cover (7) is arranged at the outlet of the air inlet pipe (5).

3. The washing structure of the filter screen of a clothes dryer according to claim 2, characterized in that: A drainage pipe (9) for flushing and draining the filter screen (6) is provided below the air inlet pipe (5).

4. The washing structure of the filter screen of a clothes dryer according to claim 3, characterized in that: A baffle cover (8) for receiving flushing water of the filter screen (6) is arranged at the inlet of the drainage pipe (9), and the upper end of the baffle cover (8) is higher than the lower end of the guide cover (7).

5. The washing structure of the filter screen of a clothes dryer according to claim 1, characterized in that: A pressure booster (12) for increasing the pressure inside the flushing water tank (11) is provided on the side wall of the flushing water tank (11).

6. The washing structure of the filter screen of a clothes dryer according to claim 1, characterized in that: The side wall of the air inlet pipe (5) is slidably penetrated and connected with a hard connecting pipe (14), and a plurality of groups of flushing pipes (17) are provided and fixedly connected to the hard connecting pipe (14).

7. The washing structure of the filter screen of a clothes dryer according to claim 6, characterized in that: The upper end of the hard connecting pipe (14) is connected to the water outlet of the flushing water tank (11) through a telescopic hose (13); an adjustment connecting plate (15) is fixedly connected to the hard connecting pipe (14); an electric telescopic rod (16) is fixedly installed at the lower end of the flushing water tank (11); and the output end of the electric telescopic rod (16) is fixedly connected to the adjustment connecting plate (15).

8. The washing structure of the filter screen of a clothes dryer according to claim 7, characterized in that: The flushing nozzles (18) are arranged in multiple groups on the flushing pipe (17), and the installation angles of the multiple groups of flushing nozzles (18) are different.

9. The method for flushing a filter screen of a clothes dryer according to claim 1, characterized in that: The specific steps are as follows: a temperature and humidity sensor is used to make a judgment; when it is judged that the flushing threshold value has been reached and the load dryness has reached the requirement, the drainage pump (3) starts to extract the remaining water in the base water storage tank (2) into the flushing water tank (11) for the last time; the flushing nozzle (18) in the air inlet pipe (5) starts to work, and the water in the flushing water tank (11) is sprayed into the filter (6) through the flushing nozzle (18) to start flushing the filter (6), thereby flushing away the hair debris in the filter (6).

10. The method for flushing a filter screen of a clothes dryer according to claim 9, characterized in that: During the flushing process of the filter (6), the synchronous humidity sensor starts to work to detect the humidity of the filter (6) until the humidity reaches the stop threshold, and then the flushing of the filter (6) is stopped. After the heat pump system and the fan run for another minute, the whole machine stops working.

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