Ventilation control module for washing machine and washing machine

Abstract

The present invention discloses a ventilation control module for a washing machine and a washing machine, the ventilation control module for a washing machine comprising: a fan assembly for generating flowing air; a fan chamber for mounting the fan assembly on one side; an air duct chamber for providing a path for airflow to the fan assembly on the other side; the air duct chamber having an exhaust passage and an intake passage communicating with the fan assembly; and an air duct opening / closing means for opening and closing the air duct in at least one passage. The washing machine disclosed by the present invention is equipped with this ventilation control module, which can increase the drying speed of the working cavity containing the washing tub in the washing machine, thereby preventing the working cavity from remaining damp for a long time, which could lead to the proliferation of numerous bacteria and the generation of unpleasant odors.

Description

[Technical Field]

[0001] The present invention relates to the field of home appliances, and more particularly to a ventilation control module for a washing machine and a washing machine. [Background technology]

[0002] With the advancement of science and technology, washing machines have become an indispensable appliance in modern homes, making people's lives extremely convenient. However, while washing machines have made people's lives more convenient, various drawbacks of washing machines have also become apparent.

[0003] Patent Document 1 discloses a washing machine comprising a housing, a washing tub rotatably mounted within the housing, and a water receiving device mounted within the housing for collecting water discharged from the washing tub. The washing machine further comprises a drain passage, a first drain outlet provided at a lower position of the peripheral wall of the washing tub, and the drain passage is mounted on the outer peripheral wall of the washing tub and communicates with the first drain outlet, guiding water discharged from the washing tub downward. The drain passage has a water inlet at an upper position and a water outlet at a lower position. The drain passage seals and covers the first drain outlet on the peripheral wall of the washing tub, and the water inlet is communicated with the first drain outlet. The water receiving device comprises a water collecting cavity and at least one second drain outlet, and the water outlet that discharges water downward from the drain passage is located within the water collecting cavity. In the present invention, a drain passage is attached to the lower part of the outer wall of the washing tub, which guides the water flowing out from the first drain outlet downward, preventing the water receiving device from extending upward, not only realizing the capacity expansion effect, but also guiding the water discharged into the water collecting cavity of the water receiving device, increasing the drainage speed and preventing water splashing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Chinese Patent No. 110241545 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the washing machine provided by the above technical solution, the working cavity where the washing tub of the washing machine is located becomes damp after use, and the damp environment in the working cavity makes it easy for bacteria to grow and causes unpleasant odors. Meanwhile, since the washing machine itself has a cylindrical structure with openings on the sides, opening the door assembly of the washing machine cannot speed up the drying of the working cavity of the washing machine. [Means for solving the problem]

[0006] It is with this in mind that the present invention is presented.

[0007] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology, and on the one hand, the present invention provides a ventilation control module for a washing machine, which can be used to control the speed of the air flow in the working cavity of the washing machine, so that the moist air in the working cavity of the washing machine can be discharged from the working cavity as quickly as possible, thereby reducing the time required for the working cavity of the washing machine to dry from a moist state after use.

[0008] In another embodiment, the present invention provides a washing machine, which adopts the above-mentioned ventilation control module, so that after washing clothes, the damp interior space of the washing machine can be dried quickly by the ventilation device, and the generation of more bacteria and unpleasant odors can be avoided.

[0009] In order to solve the above-mentioned technical problems, the basic concept of the technical problems adopted by the present invention is as follows. It is a ventilation module for washing machines, and its features are: a fan assembly for generating moving air; One side of the case is a fan chamber for mounting a fan assembly, and the other side is an air duct chamber for providing a path for the fan assembly to take in and out air, the air duct chamber having an exhaust passage and an intake passage communicating with the fan assembly, and at least one passage having an air duct opening / closing means for opening and closing the air duct.

[0010] In some embodiments, the airway chamber is provided with a partition plate, which divides the airway chamber into the intake passage and the exhaust passage.

[0011] In some embodiments, the airway chamber has a first end plate, the first end plate having a fan inlet and an outlet, the fan inlet and the outlet being located on either side of the partition plate.

[0012] In some embodiments, the airway chamber has a second end plate, the second end plate having an air inlet and an air outlet, the air inlet and the air outlet being located on either side of the partition.

[0013] In some embodiments, a first air passage opening and closing means is provided in the intake passage, and when the first air passage opening and closing means is opened, air can pass through the intake passage.

[0014] In some embodiments, the first air duct opening and closing means has a plate-like structure and is provided at the location of the air outlet, and when the first air duct opening and closing means is fitted to the periphery of the air outlet, the first air duct opening and closing means opens, and when the first air duct opening and closing means is separated from the air outlet, the first air duct opening and closing means opens, allowing the flowing air to pass through the air outlet.

[0015] In some embodiments, the first air passage opening and closing means is rotatably connected within the intake passage.

[0016] In some embodiments, the case is further provided with a position detection device, which detects the position of the first air duct opening and closing means and can determine the open / closed state of the first air duct opening and closing means.

[0017] In some embodiments, a second air passage opening and closing means is provided in the exhaust passage, and the second air passage opening and closing means is connected in conjunction with the first air passage opening and closing means and can be opened and closed simultaneously.

[0018] On the other hand, the present invention provides a washing machine, comprising the ventilation control module described above, wherein one end of the intake passage is connected to the working cavity of the washing machine and the other end is connected to the fan chamber, and one end of the exhaust passage is connected to the working cavity of the washing machine and the other end is connected to an external space of the washing machine. [Effects of the Invention]

[0019] By adopting the above technical solutions, the present invention has the following advantages compared with the existing technology:

[0020] The ventilation control module provided by the present invention can generate flowing air using a fan assembly, which then enters the working cavity of the washing machine through the intake passage and controls the flow of air within the working cavity so that the air within the working cavity is discharged from the working cavity of the washing machine along with the flowing air through the exhaust passage of the ventilation control module. By accelerating the flow of air within the working cavity of the washing machine, the air within the working cavity can be quickly replaced, and after use, the moist air within the working cavity can be quickly replaced outside the washing machine, accelerating the drying of the working cavity and preventing the working cavity from remaining moist for a long time, which could lead to the proliferation of bacteria and the generation of unpleasant odors.

[0021] On the other hand, the present invention provides a washing machine, which comprises the ventilation control module in the above-mentioned embodiment. [Brief explanation of the drawings]

[0022] Specific embodiments of the present invention will be described in more detail below with reference to the drawings. The drawings are provided as a part of the present invention to provide a further understanding of the present invention, and the schematic embodiments of the present invention and their description are intended to help interpret the present invention but are not intended to unduly limit the present invention. The drawings in the following description are not too similar to some embodiments, and it is obvious to those skilled in the art that other drawings can be obtained based on these drawings without requiring creative work.

[0023] [Figure 1] FIG. 1 is a schematic exploded structural view of a ventilation control module provided by the present invention. [Figure 2] FIG. 2 is a structural schematic diagram of the fan assembly. [Figure 3] FIG. 3 is a schematic diagram of the air flow structure within the ventilation control module. [Figure 4] FIG. 4 is a schematic diagram of the case structure. [Figure 5] FIG. 5 is a structural schematic diagram of the case with the fan assembly attached. [Figure 6] FIG. 6 is a schematic plan view of the structure of FIG. [Figure 7] FIG. 7 is a cross-sectional view taken along the EE direction in FIG. [Figure 8] FIG. 8 is an enlarged schematic view of the structure of the portion F in FIG. [Figure 9] FIG. 9 is a schematic structural view of the first air passage opening and closing means and the second air passage opening and closing means.

[0024] It should be noted that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concept to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION OF THE INVENTION

[0025] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in light of the drawings in the embodiments of the present invention. The following embodiments are for illustrating the present invention, but are not intended to limit the scope of the present invention.

[0026] In describing the present invention, the orientations or positional relationships indicated by terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "inner," and "outer" are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of explaining and simplifying the present invention. It should be noted that these terms do not necessarily indicate or imply that the indicated devices or elements necessarily have a specific orientation or are configured or operated in a specific orientation, and therefore cannot be understood as limitations on the present invention.

[0027] In describing the present invention, it is necessary to explain as follows: unless otherwise clearly specified and limited, the terms "attached," "interconnected," and "connected" should be understood in a broad sense, for example, they may be fixedly connected, detachably connected, or integrally connected; they may be mechanically connected or electrically connected; they may be directly interconnected or indirectly interconnected via an intermediate medium. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0028] The ventilation control module of the washing machine provided by the present invention will be described in detail below with reference to FIGS. 1 to 9. FIG.

[0029] As shown in Figures 1 and 2, the ventilation control module of a washing machine comprises a fan assembly 1 and a case 2, the case 2 is provided with a fan chamber 204 of the fan assembly 1, and the fan assembly 1 is attached to the fan chamber 204.

[0030] Specifically, the case 2 is further provided with an intake passage 202 and an exhaust passage 203, and the intake passage 202 is provided on one side of the fan chamber 204. In other words, when the fan assembly 1 is attached to the fan chamber 204, the intake passage 202 is located on one side of the fan assembly 1.

[0031] As shown in Figures 4 and 5, one end of intake passage 202 is fan inlet 2022, which is connected to fan air outlet 102 of fan assembly 1; the other end of intake passage 202 is air outlet 2021, which is connected to the working cavity of the washing machine; one end of exhaust passage 203 is air outlet 2031, which is connected to the working cavity of the washing machine; and the other end of exhaust passage 203 is air outlet 2032, which is connected to the outside space of the washing machine.

[0032] 3, when it is necessary to increase the drying speed of the working cavity of the washing machine, the operation of fan assembly 1 is controlled, and air enters fan assembly 1 through fan air inlet 101 of fan assembly 1 and is accelerated within fan assembly 1 to form flowing air. This flowing air enters intake passage 202 through fan air outlet 102 and fan air inlet 2022 of fan assembly 1, passes through intake passage 202 along direction A, and then enters the working cavity of the washing machine through air outlet 2021 in direction B. Thereafter, the original air in the working cavity of the washing machine flows along direction C, entering exhaust passage 203 from air outlet 2031, and within exhaust passage 203, it is discharged to the outside space through exhaust port 2032 along direction D.

[0033] It can be understood as follows. The working cavity described above is the space that stores the wash water when the washing machine washes clothes, and the washing tub is located in this space. The working cavity stores the wash water when washing clothes, and after the clothes are washed, the wash water is discharged from the washing machine. At this time, the working cavity is moist, and water is on the inner walls of the working cavity. Areas that come into contact with the wash water, such as the tub walls of the washing tub, make the environment inside the working cavity moist, which makes it easy for bacteria to grow and unpleasant odors to occur. On the other hand, the external space is the space outside the washing machine, and is the spatial environment in which the washing machine is located.

[0034] Using the ventilation control module, a fan generates flowing air, which then enters the working cavity of the washing machine through the intake passage 202 and controls the flow of air within the working cavity, so that the air within the working cavity is discharged from the working cavity of the washing machine along with the flowing air through the exhaust passage 203 of the ventilation control module. By speeding up the flow of air within the working cavity of the washing machine, the air within the working cavity can be quickly replaced, and after use, the moist air within the working cavity can be quickly replaced outside the washing machine, speeding up the drying of the working cavity and preventing the working cavity from remaining moist for a long time, which could lead to the proliferation of bacteria and unpleasant odors.

[0035] 4 and 5, the case 2 has an air passage chamber, which is made up of a first end plate, a second end plate, a first side plate, a second side plate, and a bottom plate, and a partition plate 205 is provided inside the air passage chamber, which divides the air passage chamber into an intake passage 202 and an exhaust passage 203. The top of the air passage chamber is open, and the opening is sealed by a sealing cover 201, making the intake passage 202 and the exhaust passage 203 a passage structure with open ends.

[0036] Specifically, the airway chamber has a first end plate, which is provided with a fan inlet 2022 and an outlet 2032, and the fan inlet 2022 and outlet 2032 are located on either side of the partition plate 205. The other side of the airway chamber further has a second end plate, which is provided with an air outlet 2021 and an air outlet 2031, and similarly, the air outlet 2021 and the air outlet 2031 are located on either side of the partition plate 205.

[0037] When the ventilation control module operates, the air flowing from the fan assembly 1 enters the intake passage 202 through the fan intake port 2022. The air then passes through the intake passage 202 and enters the working cavity through the air outlet 2021. Within the working cavity, the original air within the working cavity is sent through the outlet 2031 into the exhaust passage 203, and then passes through the exhaust passage 203 and is discharged to the outside space through the exhaust port 2032.

[0038] Furthermore, as shown in Figure 6, a first air duct opening and closing means 2023 is provided in the intake passage 202, and when the first air duct opening and closing means 2023 is opened, the flowing air enters the working cavity through the air outlet 2021, and when the first air duct opening and closing means 2023 is closed, the air in the working cavity cannot pass through the intake passage 202 and enter the fan assembly 1.

[0039] Specifically, the first air passage opening and closing means 2023 is provided at the location of the air outlet 2021.

[0040] When the first air passage opening / closing means 2023 is opened, the flowing air generated by the fan assembly 1 enters the intake passage 202 and then can enter the working cavity through the air outlet 2021 of the intake passage 202, linking the original air flow in the working cavity and increasing the speed at which the air flows in the working cavity, thereby accelerating the drying speed of the working cavity and preventing the working cavity from remaining damp for a long time, which would lead to the proliferation of numerous bacteria and the generation of unpleasant odors.

[0041] When the first air duct opening / closing means 2023 is closed, the intake passage 202 and the working cavity are separated into two independent spaces. In this case, when the washing machine runs a washing program, the wash water in the internal space and the bubbles generated during the washing process cannot enter the intake passage 202 from the air outlet 2021. Of course, there are washing machines with a drying function in the existing technology, and when the washing machine runs a drying program, moisture can be prevented from overflowing from the intake passage 202 even if the first air duct opening / closing means 2023.

[0042] Similarly, a second air duct opening and closing means 2033 is provided in the exhaust passage 203, and the second air duct opening and closing means 2033 is provided at the outlet 2031 and is connected in conjunction with the first air duct opening and closing means 2023, so that the first air duct opening and closing means 2023 and the second air duct opening and closing means 2033 can be opened / closed simultaneously.

[0043] When the second air passage opening / closing means 2033 is opened, the flowing air generated by the fan assembly 1 enters the working cavity, and then the original air in the working cavity flows through the air outlet 2031 into the exhaust passage 203, passes through the exhaust passage 203, and is discharged to the outside space through the exhaust port 2032, accelerating the discharge of the humid air in the working cavity to the outside space, reducing the humidity in the working cavity, and shortening the time required for drying the working cavity.

[0044] When the second air duct opening and closing means 2033 is closed, gas in the working cavity or fluids such as cleaning water and foam cannot enter the exhaust passage 203 from the outlet 2031. At this time, the second air duct opening and closing means 2033 separates the working cavity from the outside space, so that the working cavity is relatively sealed when the washing machine is operating.

[0045] 9, both the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 have a plate-like structure. The first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 are connected to the intake passage 202 and the exhaust passage 203 so as to be rotatable.

[0046] Specifically, the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 are connected by a rotating shaft 5, and the rotating shaft 5 is fixed in the circumferential direction to the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033. When the rotating shaft 5 rotates, the rotations of the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 can be linked.

[0047] When first air passage opening and closing means 2023 rotates toward air outlet 2021 and fits into the circumferential side of air outlet 2021, first air passage opening and closing means 2023 closes. At the same time, second air passage opening and closing means 2033 also rotates toward the position of air outlet 2031 and fits into the circumferential side of air outlet 2031, and second air passage opening and closing means 2033 closes.

[0048] When first air duct opening and closing means 2023 rotates in a direction away from air outlet 2021, first air duct opening and closing means 2023 opens, and the air flowing generated by fan assembly 1 passes through air outlet 2021 and enters the working cavity. At the same time, second air duct opening and closing means 2033 rotates in a direction away from air outlet 2031 and opens, and the air in the working cavity enters exhaust passage 203 from air outlet 2031 and is finally discharged from exhaust passage 203 to the space outside the washing machine.

[0049] 7 and 9, the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 are further provided with a first sealing member 20231 and a second sealing member 20332, respectively, and the first sealing member 20231 and the second sealing member 20332 both have a cup structure. The opening sides face the air outlet 2021 and the air outlet 2031, and when the first air passage opening and closing means 2023 is closed, the first sealing member 20231 fits into the circumferential side of the air outlet 2021, and when the second air passage opening and closing means 2033 is closed, the second sealing member 20332 fits into the circumferential side of the air outlet 2031.

[0050] In particular, the first sealing member 20231 and the second sealing member 20332 are both made of rubber material, so that when the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 are closed, better sealing performance can be achieved.

[0051] In practice, the rotating shaft 5 may be fixedly connected to the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033 or may be integrally formed, while the rotating shaft 5 is rotatably connected to the side wall of the chamber structure. As shown in Fig. 8, a groove is further formed in the side plate, and a connecting plate 501 is provided at one end of the rotating shaft 5 close to the first air passage opening and closing means 2023, the connecting plate 501 having a circular shape and being able to fit into the groove, allowing the rotating shaft 5 and the side plate to rotate relative to each other. At the same time, a notch 2051 is further formed in the partition plate 205, and the central portion of the rotating shaft 5 passes through the notch 2051.

[0052] The air blowing control device further includes a motor 4 that can control first air passage opening and closing means 2023 and second air passage opening and closing means 2033, and motor 4 is provided on one side of intake passage 202. The output shaft of motor 4 is connected to rotating shaft 5, and rotating shaft 5 has a shaft hole 502. Shaft hole 502 is not circular, and the output shaft of motor 4 engages with shaft hole 502, and first air passage opening and closing means 2023 and second air passage opening and closing means 2033 are controlled by controlling the rotation of rotating shaft 5 with motor 4.

[0053] Furthermore, a position detection device 3 is further provided in the case 2 to make it easier to determine the open / closed state of the first air passage opening and closing means 2023 and the second air passage opening and closing means 2033. The position detection device 3 detects the position of the first air passage opening and closing means 2023, and can determine the open / closed state of the first air passage opening and closing means 2023.

[0054] Specifically, the position detection device 3 is provided at the second end plate, which has a through-hole 2024 formed therein corresponding to the position of the intake passage 202, and the physical switch of the position detection device 3 passes through this through-hole 2024 and enters the intake passage 202. The position detection device 3 can detect the position of the first air duct opening and closing means 2023, and when the first air duct opening and closing means 2023 is closed, the position detection device 3 can be activated, and when the first air duct opening and closing means 2023 is open, there is no contact between the first air duct opening and closing means 2023 and the position detection device 3. The electrical signal of the position detection device 3 at this time is different from the electrical signal when activated, and this is used to determine whether the first air duct opening and closing means 2023 is closed or not.

[0055] Furthermore, to enable the first air duct opening / closing means 2023 to operate the position detection device 3 normally, a protrusion 20232 is provided on one side of the first air duct opening / closing means 2023 facing the air outlet 2021, and the protrusion 20232 is intended to operate the position detection device.

[0056] To ensure the tightness of the intake passage 202, after the position detection device 3 is installed, the through-hole 2024 is sealed to prevent gas in the intake passage 202 from passing through the through-hole 2024. At the same time, it should be noted that the notch 2051 of the partition plate 205 is also sealed to prevent gas from flowing between the intake passage 202 and the exhaust passage 203.

[0057] The present invention also provides a washing machine, which is equipped with the above-mentioned ventilation control module, and the air outlet 2021 and the air outlet 2031 of the ventilation control module are connected to the working cavity of the washing machine by pipes.

[0058] The following control method is adopted when the above-mentioned washing machine is operating: During the washing or drying process, It detects whether or not the air duct opening / closing means is in a closed state, and if the air duct opening / closing means is not closed, it controls the air duct opening / closing means to close, and if a signal indicating that the air duct opening / closing means is in a closed state is not detected within a set time or a set number of closing times, the washing machine raises an alarm.

[0059] During the drying or ventilation process, It is detected whether or not the air duct opening / closing means is in an open state, and if the air duct opening / closing means is not open, the air duct opening / closing means is controlled to open, and if a signal of the air duct opening / closing means in an open state is not detected within a set time or a set number of times of opening, the washing machine raises an alarm.

[0060] The air duct opening and closing means in the above-described method corresponds to the first air duct opening and closing means 2023 and the second air duct opening and closing means 2033 in the ventilation control module.

[0061] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. Although a preferred embodiment has been disclosed above, it is not intended to limit the present invention. If a person skilled in the art makes some changes or modifications using the technical content presented above without departing from the scope of the technical solutions of the present invention, it will be an equivalent embodiment that has been modified in an equivalent manner. The implementation means in the above-mentioned embodiments can also be further combined or replaced, and any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention will still fall within the scope of the means of the present invention. [Explanation of symbols]

[0062] 1 Fan Assembly 101 Fan air intake 102 Fan air outlet 2 cases 201 Sealing lid 202 Intake passage 2021 Ventilation Outlet 2022 Fan Intake 2023 1st wind duct opening / closing means 20231 First sealing part 20232 Protrusion 2024 through hole 203 Exhaust passage 2031 Air outlet 2032 Exhaust port 2033 Second wind duct opening / closing means 20332 Second sealing part 204 Fan Chamber 205 Partition 2051 Notch 3 Position detection device 4 motors 5 Rotation Axis 501 Connection board 502 shaft hole

Claims

1. A ventilation control module for a washing machine, a fan assembly for generating moving air; a case having a fan chamber on one side for mounting a fan assembly and an air channel chamber on the other side for providing a path for the fan assembly to take in and out air, the air channel chamber having an exhaust passage and an intake passage communicating with the fan assembly, and at least one passage having an air channel opening / closing means for opening and closing the air channel.

2. 2. The ventilation control module of claim 1, wherein the air passage chamber is provided with a partition plate, which divides the air passage chamber into the intake passage and the exhaust passage.

3. 3. The ventilation control module of claim 2, wherein the airway chamber has a first end plate, the first end plate is provided with a fan inlet and an outlet, and the fan inlet and the outlet are located on both sides of the partition plate, respectively.

4. 4. The ventilation control module of claim 2, wherein the air passage chamber has a second end plate, the second end plate is provided with an air inlet and an air outlet, and the air inlet and the air outlet are located on both sides of the partition, respectively.

5. 5. The ventilation control module of claim 4, wherein a first air passage opening / closing means is provided in the air intake passage, and when the first air passage opening / closing means is opened, air can pass through the air intake passage.

6. 6. The ventilation control module of claim 5, wherein the first air passage opening and closing means has a plate-like structure and is provided at the location of the air outlet, and when the first air passage opening and closing means is fitted to the periphery of the air outlet, the first air passage opening and closing means opens, and when the first air passage opening and closing means is separated from the air outlet, the first air passage opening and closing means opens, allowing the flowing air to pass through the air outlet.

7. 7. The ventilation control module for a washing machine according to claim 6, wherein the first air passage opening / closing means is rotatably connected to the air intake passage.

8. 8. The ventilation control module of claim 7, wherein the case is further provided with a position detection device, which detects the position of the first air duct opening / closing means and determines whether the first air duct opening / closing means is open or closed.

9. 9. The ventilation control module of claim 7, wherein a second air passage opening / closing means is provided in the exhaust passage, and the second air passage opening / closing means is connected in conjunction with the first air passage opening / closing means and can be opened / closed simultaneously.

10. A washing machine, 10. A washing machine comprising the ventilation control module of claim 1, wherein one end of the intake passage is connected to a working cavity of the washing machine and the other end is connected to the fan chamber, and one end of the exhaust passage is connected to the working cavity of the washing machine and the other end is connected to an external space of the washing machine.

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