A laundry dryer air duct self-cleaning system and a laundry dryer thereof

Abstract

The utility model relates to a washing machine technical field discloses a kind of washing machine drying air duct self-cleaning system, including the lint filter being arranged on the air inlet of drying hot air duct, lint filter includes filter frame, filter screen, water inlet pipe and outlet pipe, filter screen is connected with the inner frame edge of filter frame, several reinforcing ribs are equipped on filter screen, and the end of reinforcing rib is connected with the inner frame edge of filter frame, outlet pipe is located on filter frame and is located at the side towards drying hot air duct, several water outlet nozzles are opened in outlet pipe, and outlet pipe is connected with water inlet pipe;It also discloses the washing machine of application washing machine drying air duct self-cleaning system;The utility model can intercept lint, prevent lint from accumulating in drying hot air duct, simultaneously, it has self-cleaning effect, outlet pipe can flush the lint accumulated on filter screen clean, guarantee drying efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of washing machine technology, and in particular to a self-cleaning system for the drying air duct of a washing machine and the washing machine thereof. Background Technology

[0002] Currently, most washer-dryer combos in the washing machine industry use heat pipes to heat the hot air duct of the drying airflow. The heated air is blown out by the motor, heating the clothes and removing moisture. The hot and humid air passes through the condensation channel of the drying airflow, where the water vapor condenses into water and is discharged. The dry and cold air then passes through the hot air duct again, is heated, and blown out again. This cycle dries the clothes. However, after prolonged use, lint will accumulate in the airflow duct, which will seriously affect the drying efficiency and make subsequent maintenance difficult. Utility Model Content

[0003] The purpose of this invention is to provide a self-cleaning system for the drying air duct of a washing machine and the washing machine thereof, which can intercept lint and prevent lint from accumulating in the drying hot air duct. At the same time, it has a self-cleaning effect, and the water outlet pipe can wash away the lint accumulated on the filter screen, ensuring high drying efficiency.

[0004] To achieve the above objectives, this utility model provides a self-cleaning system for a washing machine drying duct, including a lint filter installed at the air inlet of the drying hot air duct. The lint filter includes a filter frame, a filter screen, a water inlet pipe, and a water outlet pipe. The filter screen is connected to the inner frame edge of the filter frame, and the filter screen is provided with several reinforcing ribs, the ends of which are connected to the inner frame edge of the filter frame. The water outlet pipe is installed on the filter frame and located on the side facing the drying hot air duct. The water outlet pipe has several water nozzles and is connected to the water inlet pipe.

[0005] As a preferred embodiment of this utility model, the area of ​​the water outlet nozzle gradually increases from the water inlet of the water outlet nozzle to the water outlet of the water outlet nozzle.

[0006] As a preferred embodiment of this utility model, both the inlet and outlet of the water nozzle are elongated and arranged along the length of the water outlet pipe.

[0007] As a preferred embodiment of this utility model, the left and right sides of the water outlet nozzle are arranged in a figure-eight shape.

[0008] As a preferred embodiment of this utility model, the top surface of the water outlet nozzle is parallel to the filter screen, and the bottom surface of the water outlet nozzle slopes downward from the water inlet of the water outlet nozzle to the water outlet of the water outlet nozzle.

[0009] As a preferred embodiment of this utility model, the water outlet pipe has a built-in buffer strip arranged along the water outlet pipe. The buffer strip is located at the bottom of the water outlet pipe, and the highest surface of the buffer strip is lower than the lowest surface of the water outlet of the water nozzle.

[0010] As a preferred embodiment of this utility model, the filter screen is fan-shaped, and the water outlet pipe is located on one side of the arc-shaped edge of the filter screen, and the water outlet pipe is arc-shaped.

[0011] As a preferred embodiment of this utility model, the reinforcing rib includes an arc-shaped reinforcing rib and a straight-edge reinforcing rib. The two ends of the arc-shaped reinforcing rib are respectively connected to the two straight edges of the inner frame of the filter frame, and the two ends of the straight-edge reinforcing rib are respectively connected to the arc-shaped reinforcing rib and the arc-shaped edge of the inner frame of the filter frame.

[0012] As a preferred embodiment of this utility model, the water inlet pipe is L-shaped.

[0013] Another aspect of this utility model provides a washing machine, including the aforementioned self-cleaning system for the washing machine drying duct.

[0014] This utility model provides a self-cleaning system for the drying duct of a washing machine and a washing machine thereof. Compared with the prior art, the advantages of this system are as follows:

[0015] This invention features a lint filter installed at the air inlet of the drying hot air duct. The filter screen intercepts lint from the drying air duct, ensuring the cleanliness of the inside of the hot air duct and preventing lint accumulation that could affect drying performance. At the same time, the reinforcing ribs on the filter screen not only enhance its strength and prevent deformation, but also divide the filter screen into multiple areas. Under the rinsing of the water nozzles on the water outlet pipe, the lint is more easily dislodged after being rinsed at the edges of each area of ​​the filter screen, and the dislodged lint can be discharged through the condensation channel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] Figure 1 A schematic diagram of the air inlet structure of a washing machine drying duct self-cleaning system installed in the drying hot air duct, provided by this utility model;

[0018] Figure 2 This utility model provides a structural schematic diagram of a self-cleaning system for a washing machine drying duct.

[0019] Figure 3 A cross-sectional view of the water outlet pipe provided by this utility model;

[0020] In the diagram, 1 is the filter frame; 2 is the filter screen; 3 is the inlet pipe; 4 is the outlet pipe; 41 is the outlet nozzle; 42 is the buffer strip; 51 is the arc-shaped reinforcing rib; 52 is the straight-edge reinforcing rib; and 6 is the drying hot air duct. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] like Figures 1 to 3 As shown in the figure, a preferred embodiment of the self-cleaning system for a washing machine drying duct includes a lint filter installed at the air inlet of the drying hot air duct 6. The lint filter includes a filter frame 1, a filter screen 2, a water inlet pipe 3, and a water outlet pipe 4. The filter screen 2 is connected to the inner frame edge of the filter frame 1 and has several reinforcing ribs, the ends of which are connected to the inner frame edge of the filter frame 1. The water outlet pipe 4 is installed on the filter frame 1 and faces the drying hot air duct 6. The water outlet pipe 4 has several water nozzles 41 and is connected to the water inlet pipe 3. Specifically, the water inlet pipe 3 is L-shaped, with its horizontal section connected to the water outlet pipe 4 and its vertical section facilitating connection to the washing machine's water circuit.

[0024] This invention features a lint filter installed at the air inlet of the drying hot air duct 6. The filter screen 2 can intercept lint in the drying air duct, ensuring the cleanliness of the inside of the hot air duct and preventing lint accumulation from affecting the drying performance. At the same time, the reinforcing ribs on the filter screen 2 not only enhance the strength of the filter screen 2 and prevent deformation, but also divide the filter screen 2 into multiple areas. Under the rinsing of the water nozzles 41 on the water outlet pipe 4, the lint is more easily detached after being rinsed at the edges of each area of ​​the filter screen 2, and the detached lint can be discharged through the condensation channel.

[0025] For example, the area of ​​the water outlet nozzle 41 gradually increases from the water inlet of the water outlet nozzle 41 to the water outlet of the water outlet nozzle 41.

[0026] For example, the inlet and outlet of the water nozzle 41 are both elongated and arranged along the length of the water outlet pipe 4; further, the left and right sides of the water nozzle 41 are arranged in a figure-eight shape, so that the water flow sprayed from the water nozzle 41 is fan-shaped. In this embodiment, there are three water nozzles 41, and the rinsing area of ​​the three water nozzles 41 can cover the entire filter screen 2, avoiding rinsing dead corners and ensuring good self-cleaning effect of the lint filter.

[0027] For example, the top surface of the water nozzle 41 is parallel to the filter screen 2, and the bottom surface of the water nozzle 41 is inclined downward from the water inlet of the water nozzle 41 to the water outlet of the water nozzle 41, so that the water flow sprayed from the water nozzle 41 can wash the filter screen 2 downward.

[0028] For example, the water outlet pipe 4 has a built-in buffer strip 42 arranged along the water outlet pipe 4. The buffer strip 42 is located at the bottom of the water outlet pipe 4. The highest surface of the buffer strip 42 is lower than the lowest surface of the water outlet of the water outlet nozzle 41. The water flow from the inlet pipe 3 into the water outlet pipe 4 needs to pass over the buffer strip 42 before entering each water outlet nozzle 41. The water flow first spreads laterally in the water outlet pipe 4 and then is evenly distributed to each water outlet nozzle 41 to ensure that the water flow of all water outlet nozzles 41 is relatively consistent, thereby achieving uniform water output.

[0029] In this embodiment, the air inlet of the drying hot air duct 6 is fan-shaped, the filter screen 2 is fan-shaped, the water outlet pipe 4 is located on one side of the arc-shaped edge of the filter screen 2, and the water outlet pipe 4 is arc-shaped to ensure that the water outlet nozzle 41 of the water outlet pipe 4 can fully rinse the entire filter screen 2.

[0030] For example, the reinforcing ribs include arc-shaped reinforcing ribs 51 and straight-edge reinforcing ribs 52. The two ends of the arc-shaped reinforcing rib 51 are respectively connected to the two straight edges of the inner frame of the filter frame 1. The two ends of the straight-edge reinforcing rib 52 are respectively connected to the arc-shaped reinforcing rib 51 and the arc-shaped edge of the inner frame of the filter frame 1. All reinforcing ribs are connected to the three frames of the filter frame 1, resulting in a more uniform stress distribution. Specifically, the arc-shaped reinforcing ribs 51 and the straight-edge reinforcing ribs 52 divide the filter screen 2 into three regions of similar area.

[0031] This utility model also provides a washing machine equipped with the aforementioned self-cleaning system for the drying air duct of the washing machine, thus possessing all the beneficial effects of the self-cleaning system for the drying air duct of the washing machine, which will not be described in detail here.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A self-cleaning system for the drying duct of a washing machine, characterized in that, The device includes a lint filter installed at the air inlet of the drying hot air duct. The lint filter includes a filter frame, a filter screen, a water inlet pipe, and a water outlet pipe. The filter screen is connected to the inner frame edge of the filter frame. The filter screen is provided with several reinforcing ribs, and the ends of the reinforcing ribs are connected to the inner frame edge of the filter frame. The water outlet pipe is installed on the filter frame and located on the side facing the drying hot air duct. The water outlet pipe has several water outlet nozzles and is connected to the water inlet pipe.

2. The self-cleaning system for the drying duct of a washing machine as described in claim 1, characterized in that, The area of ​​the water outlet nozzle gradually increases from the water inlet of the water outlet nozzle to the water outlet of the water outlet nozzle.

3. The self-cleaning system for the drying duct of a washing machine as described in claim 2, characterized in that, The inlet and outlet of the water nozzle are both elongated and arranged along the length of the water outlet pipe.

4. The washing machine drying duct self-cleaning system as described in claim 3, characterized in that, The left and right sides of the water nozzle are arranged in a figure-eight shape.

5. The washing machine drying duct self-cleaning system as described in claim 4, characterized in that, The top surface of the water outlet nozzle is parallel to the filter screen, and the bottom surface of the water outlet nozzle slopes downward from the water inlet of the water outlet nozzle to the water outlet of the water outlet nozzle.

6. The self-cleaning system for the drying duct of a washing machine as described in claim 1, characterized in that, The water outlet pipe has a built-in buffer strip arranged along the water outlet pipe. The buffer strip is located at the bottom of the water outlet pipe, and the highest surface of the buffer strip is lower than the lowest surface of the water outlet of the water nozzle.

7. The self-cleaning system for the drying duct of a washing machine as described in claim 1, characterized in that, The filter screen is fan-shaped, and the water outlet pipe is located on one side of the arc-shaped edge of the filter screen. The water outlet pipe is arc-shaped.

8. The washing machine drying duct self-cleaning system as described in claim 7, characterized in that, The reinforcing ribs include arc-shaped reinforcing ribs and straight-edge reinforcing ribs. The two ends of the arc-shaped reinforcing ribs are respectively connected to the two straight edges of the inner frame of the filter frame, and the two ends of the straight-edge reinforcing ribs are respectively connected to the arc-shaped reinforcing ribs and the arc-shaped edges of the inner frame of the filter frame.

9. The self-cleaning system for the drying duct of a washing machine as described in claim 1, characterized in that, The water inlet pipe is L-shaped.

10. A washing machine, characterized in that, Includes the self-cleaning system for the drying duct of a washing machine as described in any one of claims 1 to 9.

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