Filter, filter system, and laundry treating apparatus

Abstract

This application relates to the field of filtration, specifically to a filter, filtration system, and laundry detergent treatment device. The filter includes a housing with a filter screen for allowing impurities to enter its interior. The housing has a drain port communicating with a drain hole and an inlet for allowing washing liquid to enter its interior. The housing is designed such that, when installed on an inner drum, the height of the inlet is lower than the height of the drain port. After the housing is installed in the inner drum, the drain port communicates with the drain hole, and the inlet is located below the drain port. During the rotation of the inner drum, the washing liquid in the inner drum carries impurities from the filter screen into the interior of the housing. When the inner drum begins to discharge washing liquid, the washing liquid, affected by the rotation of the inner drum, moves upward and enters the interior of the housing through the inlet, carrying impurities out of the housing through the drain hole, thus achieving automatic cleaning of the filter and improving the user experience.

Description

Technical Field

[0001] This application relates to the field of filtration, and more specifically, to a filter, a filtration system, and a laundry treatment device. Background Technology

[0002] Washing machines, washer-dryers, and other laundry equipment typically contain filters to remove lint, hair, and other impurities from laundry. These filtered impurities are stored in the filter, requiring users to clean it periodically, which is inconvenient and reduces the user experience. Summary of the Invention

[0003] This application provides a filter, a filtration system, and a laundry treatment device to at least solve the technical problem of troublesome and cumbersome impurity removal.

[0004] According to a first aspect of the present application, a filter is provided for installation on the inner wall of the inner drum of a laundry treatment device, the inner wall of the inner drum having a drain hole, the filter including a housing having a filter screen for allowing impurities to enter the interior of the housing;

[0005] The housing has a drain outlet for communicating with the drain hole, and the housing also has a water inlet for allowing washing liquid to enter the housing. The housing is designed such that when the housing is installed on the inner cylinder, the height of the water inlet is lower than the height of the drain outlet.

[0006] Optionally, the housing has an internal partition wall located between the filter screen and the drain outlet, forming a first channel between the partition wall and the filter screen, and a second channel between the partition wall and the drain outlet; the housing is designed such that when the housing is installed on the inner cylinder, the connection between the first channel and the second channel is located at the lower part of the housing.

[0007] Optionally, the first channel is provided with a first baffle plate. When the first baffle plate is in the first position, it blocks the connection between the first channel and the second channel. When the first baffle plate is in the second position, it opens the first channel.

[0008] The first baffle is designed such that impurities entering the housing from the filter screen accumulate on the first baffle, and when the external force on the first baffle is greater than a preset first threshold, the first baffle moves from the first position to the second position, so that the impurities on the first baffle enter between the first channel and the second channel.

[0009] Optionally, the first baffle is made of an elastic material or a resilient structure; the second baffle is made of an elastic material or a resilient structure.

[0010] Optionally, a grating plate is installed in the water inlet, and the diameter of the grating holes of the grating plate is smaller than the diameter of the filter holes of the filter screen.

[0011] Optionally, a flow guide rib is provided on one side of the water inlet, located outside the housing.

[0012] Optionally, the housing is designed such that, when the housing is installed on the inner cylinder, the bottom of the housing is higher than the lowest water level of the inner cylinder.

[0013] According to a second aspect of the present application, a filtration system is provided, including an inner cylinder, an outer cylinder, and the filter described above. A drainage channel is formed between the inner cylinder and the outer cylinder. A drainage hole is provided on the inner sidewall of the inner cylinder, and the drainage hole communicates the interior of the inner cylinder with the drainage channel. The filter is installed on the inner sidewall of the inner cylinder, and the drain outlet of the filter is correspondingly provided with the drainage hole.

[0014] According to a third aspect of the embodiments of this application, a laundry treatment device is provided, including the filter or the filtration system described above.

[0015] In this embodiment, after the housing is installed into the inner drum, the drain outlet is connected to the drain hole, and the inlet is located below the drain outlet. During the rotation of the inner drum, the washing liquid in the inner drum carries impurities from the filter screen into the interior of the housing. When the inner drum begins to discharge washing liquid, the washing liquid, affected by the rotation of the inner drum, moves upward and enters the interior of the housing from the inlet, carrying impurities in the housing out through the drain hole, thus achieving automatic cleaning of the filter and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an embodiment where the filter is installed in the inner cylinder.

[0017] Figure 2 This is a schematic diagram of another embodiment where the filter is installed in the inner cylinder.

[0018] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0019] Figure 4 This is a schematic diagram when the first baffle is in the second position.

[0020] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0021] Labeling Explanation: 1. Balance Ring; 2. Baffle; 3. Shell; 31. Partition Wall; 32. First Channel; 33. Second Channel; 34. Inlet; 4. Inner Cylinder; 5. Outer Cylinder; 6. Guide Ribs; 7. Drain Pipe; 8. Grating; 9. First Baffle; 10. Second Baffle; 11. Drain Hole; 12. Thread Flakes. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] like Figure 1 As shown, this embodiment provides a filter for installation on the inner wall of the inner cylinder 4 of a laundry treatment device. The inner wall of the inner cylinder 4 is provided with a drain hole 11. The filter includes a housing 3, and the housing 3 is provided with a filter screen for allowing impurities to enter the interior of the housing 3.

[0024] The housing 3 is provided with a drain outlet for communicating with the drain hole 11. The housing 3 is also provided with a water inlet 34 for allowing washing liquid to enter the interior of the housing 3. The housing 3 is designed such that when the housing 3 is installed on the inner cylinder 4, the height of the water inlet 34 is lower than the height of the drain outlet.

[0025] The laundry processing equipment can be a washing machine, washer-dryer, or similar device, possessing at least one of the functions of soaking, washing, dehydration, drying, and care, and may also have other functions; this embodiment does not specifically limit its functionality. It should be noted that the laundry processing equipment needs to have a drainage function, and the drain hole 11 on the inner wall of the inner drum 4 is higher than the bottom wall of the inner drum 4. That is, the laundry processing equipment in this embodiment is a top-drainage or top-spinning device. The laundry can be clothing, shoes, or other items; this embodiment does not specifically limit its functionality. Impurities refer to lint 12, hair, etc., that have fallen off the laundry. A balance ring 1 is installed on the inner drum 4.

[0026] For ease of understanding, such as Figure 1 As shown, the example is a filter installed on the inner wall of the inner cylinder 4. The connection between the housing 3 and the inner wall of the inner cylinder 4 can be welding, gluing, or using a snap-fit ​​structure or other connecting structures. After the housing 3 is installed on the inner wall of the inner cylinder 4, the drain outlet on the housing 3 is matched with the drain hole 11 on the inner cylinder 4, meaning that the washing liquid entering the drain outlet can pass through the drain outlet and enter the drain hole 11.

[0027] A filter screen with several filter holes is provided on the housing 3. During the washing process, the washing liquid and impurities can pass through the filter holes and enter the interior of the housing 3. The filter screen mainly serves to reduce the probability of impurities inside the housing 3 returning to the inner drum 4, thus preventing impurities from moving from the inside of the housing 3 into the inner drum 4. In addition, the filter screen also prevents the laundry from entering the interior of the housing 3 and coming into contact with the impurities inside. One or multiple filter screens can be provided. Similarly, the filter screen can be placed on any side of the housing 3, as long as the impurities in the inner drum 4 can pass through the filter screen and enter the interior of the housing 3. This embodiment does not specifically limit the shape of the housing 3, the number of filter screens, or the installation position of the filter screens.

[0028] In one embodiment, the inlet 34 is located at a lower height than the outlet. Specifically, the inlet 34 is located on the bottom surface of the housing 3, allowing the washing liquid in the inner drum 4 to pass through the inlet 34 and enter the housing 3. It should be noted that, to ensure the self-cleaning effect of the filter, the inlet 34 is located on the drainage path of the inner drum 4. That is, during drainage, the washing liquid (water) in the inner drum 4 moves upward along the inner wall of the inner drum 4 until it reaches the drain hole 11, from which it is discharged. The inlet 34 is located on the water's movement path, ensuring that when the water in the inner drum 4 moves upward along the inner wall as the inner drum 4 rotates, it can pass through the inlet 34 and reach the drain hole 11, without obstructing the movement of the water.

[0029] As described above, after the housing 3 is installed into the inner cylinder 4, the drain outlet is connected to the drain hole 11, and the inlet 34 is located below the drain outlet. During the rotation of the inner cylinder 4, the washing liquid in the inner cylinder 4 carries impurities from the filter screen into the interior of the housing 3. When the inner cylinder 4 begins to discharge washing liquid, the washing liquid, affected by the rotation of the inner cylinder 4, moves upward and enters the interior of the housing 3 through the inlet 34, carrying impurities in the housing 3 out through the drain hole 11, thus achieving automatic filter cleaning and improving the user experience.

[0030] In another embodiment of this application, such as Figure 2 and 3 As shown, the housing 3 has a partition wall 31 inside, which is located between the filter screen and the drain outlet. The partition wall 31 and the filter screen form a first channel 32, and the partition wall 31 and the drain outlet form a second channel 33. The housing 3 is designed such that when the housing 3 is installed on the inner cylinder 4, the connection between the first channel 32 and the second channel 33 is located at the lower part of the housing 3.

[0031] In one embodiment, the partition wall 31 is vertically disposed inside the housing 3, with one end of the partition wall 31 connected to the inner top wall of the housing 3, and a gap existing between the end of the partition wall 31 away from the inner top wall of the housing 3 and the inner bottom wall of the housing 3. A valve-like structure, such as a rotatable baffle 2, can be installed in this gap.

[0032] The washing liquid and impurities entering the housing 3 from the filter screen are located in the first channel 32. After moving downwards along the first channel 32, they can enter the second channel 33. When there is water flowing upwards in the second channel 33, the impurities in the second channel 33 will move upwards with the water flow to the drain outlet, and then enter the drain hole 11 through the drain outlet and be discharged outside the inner cylinder 4, thus realizing the self-cleaning of the filter.

[0033] Furthermore, in one embodiment, such as Figure 2 As shown, a baffle 2 is provided between the inner cylinder 4 and the outer cylinder 5. The position of the baffle 2 is adapted to the drain hole 11 to guide the water in the drain hole 11 and guide the discharged water into the drain pipe 7.

[0034] Through the above, the partition wall 31 divides into the first channel 32 and the second channel 33, making it difficult for impurities that have entered the shell 3 to return to the inner cylinder 4, thus ensuring the effectiveness of impurity collection.

[0035] In another embodiment of this application, such as Figure 2 and 3 As shown, the first channel 32 is provided with a first baffle 9. When the first baffle 9 is in the first position, it blocks the connection between the first channel 32 and the second channel 33. When the first baffle 9 is in the second position, it opens the first channel 32.

[0036] The first baffle 9 is designed so that impurities entering the housing 3 from the filter screen accumulate on the first baffle 9, and when the external force on the first baffle 9 is greater than a preset first threshold, the first baffle 9 moves from the first position to the second position so that the impurities on the first baffle 9 enter between the first channel 32 and the second channel 33.

[0037] In one embodiment, the first baffle 9 can rotate downward to open the first channel 32. After the impurities fall below the first baffle 9, the first baffle 9 rebounds and blocks the first channel 32 again, making it difficult for the impurities to return to the inner cylinder 4, which helps to improve the collection effect of impurities.

[0038] Among them, such as Figure 3 As shown, this is when the first baffle 9 is in the first position; as Figure 4 and 5 As shown, this is when the first baffle 9 is in the second position.

[0039] In another embodiment of this application, the water inlet 34 is located between the first channel 32 and the second channel 33, and a second baffle 10 located inside the housing 3 is provided on one side of the water inlet 34;

[0040] The second baffle 10 is designed such that the impurities falling from the first baffle 9 accumulate on the second baffle 10. When the external force on the second baffle 10 is greater than a preset second threshold, the second baffle 10 moves from a third position to a fourth position so that the impurities are located between the second baffle 10 and the water inlet 34.

[0041] like Figure 4 and 5 As shown, in one embodiment, a vertical connecting wall is provided on the inner bottom wall inside the housing 3, the rotating end of the second baffle 10 is installed on the connecting wall, and the second baffle 10 rotates downward after being subjected to external force, and is in a vertical or approximately vertical state when not subjected to external force.

[0042] By setting the second baffle 10, impurities inside the housing 3 can smoothly enter the second channel 33. When the laundry treatment equipment drains, the discharged water rises along the inner wall of the inner cylinder 4 and enters the second channel 33 from the inlet 34, carrying the impurities in the second channel 33 to the drain outlet, thus achieving self-cleaning of the filter.

[0043] In another embodiment of this application, the first baffle 9 is made of an elastic material or a resilient structure; the second baffle 10 is made of an elastic material or a resilient structure.

[0044] In one embodiment, both the first baffle 9 and the second baffle 10 are made of elastic materials. When the external force on the first baffle 9 is greater than a first threshold, the first baffle 9 rotates downward; when the force is less than the first threshold, the first baffle 9 rebounds. The second baffle 10 is handled similarly, and will not be described further. The first threshold is related to the material of the first baffle 9, and the second threshold is related to the material of the second baffle 10.

[0045] In one embodiment, a spring-loaded structure such as a spring hinge is used, but this embodiment does not specifically limit this.

[0046] In another embodiment of this application, a grid plate 8 is installed in the water inlet 34, and the diameter of the grid holes of the grid plate 8 is smaller than the diameter of the filter holes of the filter screen.

[0047] In one embodiment, when the grating plate 8 is not installed in the inlet 34, the diameter of the inlet 34 is designed to allow the washing liquid to enter, but not to allow impurities in the second channel 33 to flow out. After the grating plate 8 is installed in the inlet 34, the diameter of the grating holes is designed to allow the washing liquid to enter, but not to allow impurities to flow out.

[0048] Through the above, the diameter of the grid holes of the grid plate 8 is easy to control, ensuring that impurities in the second channel 33 are not easily backflowed from the inlet 34 into the inner cylinder 4, thereby ensuring the collection effect of impurities.

[0049] In another embodiment of this application, a flow guide rib 6 is provided on one side of the water inlet 34, located outside the housing 3.

[0050] Through the above, the guide ribs 6 guide the water flow on the inner wall of the inner cylinder 4 into the inlet 34, which facilitates the drainage of the inner cylinder 4 and the self-cleaning of the filter.

[0051] In another embodiment of this application, the housing 3 is designed such that when the housing 3 is installed on the inner cylinder 4, the bottom of the housing 3 is higher than the lowest water level of the inner cylinder 4.

[0052] The above ensures that even when the water level in the inner cylinder 4 is at its lowest, impurities in the inner cylinder 4 can still be collected.

[0053] It should be noted that the above descriptions of directions are based on the directions shown in the diagram.

[0054] This embodiment also provides a filtration system, including an inner cylinder 4, an outer cylinder 5, and the filter described above. A drainage channel is formed between the inner cylinder 4 and the outer cylinder 5. A drainage hole 11 is provided on the inner side wall of the inner cylinder 4. The drainage hole 11 communicates the interior of the inner cylinder 4 with the drainage channel. The filter is installed on the inner side wall of the inner cylinder 4, and the drain outlet of the filter is correspondingly provided with the drainage hole 11.

[0055] This embodiment also provides a laundry treatment device, including the filter or the filtration system described above.

[0056] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0057] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0058] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A filter, characterized in that, The filter is for installation on the inner wall of the inner drum of a laundry processing device, the inner wall of which is provided with a drain hole, and the filter includes a housing, the housing being provided with a filter screen for allowing impurities to enter the interior of the housing; The housing has a drain outlet for communicating with the drain hole, and a water inlet for allowing washing liquid to enter the housing. The water inlet is located at the bottom of the housing. The housing is designed such that when the housing is installed on the inner cylinder, the height of the water inlet is lower than the height of the drain outlet. The housing has an internal partition wall located between the filter screen and the drain outlet, forming a first channel between the partition wall and the filter screen, and a second channel between the partition wall and the drain outlet; the housing is designed such that when the housing is installed on the inner cylinder, the connection between the first channel and the second channel is located at the lower part of the housing. Impurities entering the housing from the filter screen are located in the first channel, move downward along the first channel and then enter the second channel. The impurities in the second channel move upward with the water flow to the drain outlet. The first channel is provided with a first baffle. When the first baffle is in the first position, it blocks the connection between the first channel and the second channel. When the first baffle is in the second position, it opens the first channel. The first baffle is designed such that impurities entering the housing from the filter screen accumulate on the first baffle, and when the external force on the first baffle is greater than a preset first threshold, the first baffle moves from the first position to the second position so that the impurities on the first baffle enter between the first channel and the second channel; the first baffle rebounds when the external force is less than the first threshold.

2. The filter according to claim 1, characterized in that, The water inlet is located between the first channel and the second channel, and a second baffle is provided on one side of the water inlet, located inside the housing. The second baffle is designed so that the impurities falling from the first baffle accumulate on the second baffle. When the external force on the second baffle is greater than a preset second threshold, the second baffle moves from a third position to a fourth position so that the impurities are located between the second baffle and the water inlet.

3. The filter according to claim 2, characterized in that, The first baffle is made of an elastic material or a resilient structure; the second baffle is made of an elastic material or a resilient structure.

4. The filter according to any one of claims 1-3, characterized in that, A grating plate is installed in the water inlet, and the diameter of the grating holes of the grating plate is smaller than the diameter of the filter holes of the filter screen.

5. The filter according to any one of claims 1-3, characterized in that, The inlet side is provided with a flow guide rib located outside the shell.

6. The filter according to any one of claims 1-3, characterized in that, The housing is designed such that, when installed on the inner cylinder, the bottom of the housing is higher than the lowest water level of the inner cylinder.

7. A filtration system, characterized in that, The filter includes an inner cylinder, an outer cylinder, and a filter as described in any one of claims 1-6. A drainage channel is formed between the inner cylinder and the outer cylinder. A drainage hole is provided on the inner sidewall of the inner cylinder, and the drainage hole communicates with the interior of the inner cylinder and the drainage channel. The filter is installed on the inner sidewall of the inner cylinder, and the drain outlet of the filter is correspondingly provided with the drainage hole.

8. A laundry processing device, characterized in that, Includes the filter as described in any one of claims 1-6 or the filtration system as described in claim 7.

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