Filter screen structure, dust bin assembly, and cleaning device

Abstract

A filter screen structure (12), a dust bin assembly (10), and a cleaning device. In the filter screen structure (12), along a second direction, an extension length of a first filter screen mounting region (1211) of a filter screen support (121) is greater than an extension length of a second filter screen mounting region (1213), and a filter screen has a shape matching a filter screen mounting region. Thus, by dividing the mounting region of the filter screen support (121) for mounting the filter screen into two regions, the length of the first filter screen mounting region (1211) can be conveniently extended in the second direction, so that the length of the first filter screen mounting region (1211) along the second direction is greater than that of the second filter screen mounting region (1213), and the purpose of capacity expansion can be achieved, thereby enabling maximization the overall area of the filter screen, increasing the overall flow area of the filter screen, further increasing the airflow volume, and improving the cleaning performance of the cleaning device.

Description

Filter structure, dust box assembly and cleaning equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202422746149.6, filed on November 11, 2024, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to the field of cleaning technology, and in particular to a filter structure, dust box assembly, and cleaning equipment. Background Technology

[0004] In modern life, cleaning equipment is becoming increasingly common, bringing convenience to households. For example, robotic vacuum cleaners, robotic mops, and robotic vacuum and mop combos are widely used. The dustbin is a key component of cleaning equipment, its main function being to filter dust and debris using a filter, causing the dust to collect inside. However, in some technologies, the filter significantly obstructs the airflow through the dustbin, resulting in a smaller overall airflow and consequently reduced cleaning performance. Summary of the Invention

[0005] In view of this, the main objective of the present disclosure is to provide a filter structure, dust box assembly, and cleaning device that can improve the airflow.

[0006] To achieve the above objectives, the technical solution of this disclosure embodiment is implemented as follows:

[0007] The first aspect of this disclosure provides a filter structure, including:

[0008] A filter holder has a filter mounting area, which includes at least a first filter mounting area and a second filter mounting area. The first filter mounting area is located on one side of the second filter mounting area along a first direction. Along a second direction, the extension length of the first filter mounting area is greater than the extension length of the second filter mounting area. The first direction and the second direction are perpendicular.

[0009] A filter screen, wherein the filter screen is disposed on a filter screen support and has a shape adapted to the filter screen mounting area.

[0010] In some embodiments, the filter screen includes at least a first filter screen and a second filter screen; the first filter screen is disposed in the first mounting area of ​​the filter screen; the second filter screen is disposed in the second mounting area of ​​the filter screen; and along the second direction, the length of the first filter screen is greater than the length of the second filter screen.

[0011] In some embodiments, the filter mounting area further includes at least a third filter mounting area.

[0012] In some embodiments, the filter screen includes a third filter screen disposed within the third mounting area of ​​the filter screen.

[0013] In some embodiments, the first mounting area of ​​the filter and the second mounting area of ​​the filter are located in the same plane.

[0014] In some embodiments, along at least one side of the second direction, the first mounting area of ​​the filter screen includes a first sidewall, and the second mounting area of ​​the filter screen includes a second sidewall; along the second direction, the first sidewall extends relative to the second sidewall to jointly form a transition step.

[0015] In some embodiments, the filter support further includes a connecting wall, the opposite ends of which are respectively connected to the first sidewall and the second sidewall to form a reinforcing cavity with the first sidewall and the second sidewall.

[0016] In some embodiments, the connecting wall is an arc-shaped wall; and / or, at least one side of the reinforcing cavity is closed along a third direction, wherein the third direction is perpendicular to the first direction and the second direction, respectively.

[0017] A second aspect of this disclosure provides a dustbin assembly, including:

[0018] The box body has a first air inlet, a first air outlet, and a receiving cavity. The first air inlet and the first air outlet are respectively connected to the receiving cavity to form an airflow path that sequentially flows through the first air inlet, the receiving cavity, and the first air outlet.

[0019] According to any of the above-described filter structures, the filter structure is disposed within the receiving cavity and located on the airflow path.

[0020] In some embodiments, the filter structure is disposed within the receiving cavity to separate a dust collection chamber located on the side of the filter structure near the first air inlet; and / or, the first air outlet is located on the side of the second filter mounting area away from the first filter mounting area, and the first air outlet is connected to the sides of the first filter mounting area and the second filter mounting area away from the first air inlet, respectively.

[0021] In some embodiments, the receiving cavity has a first receiving area and a second receiving area that are in communication with each other, the first filter mounting area is located in the first receiving area, and the second filter mounting area is located in the second receiving area; along the second direction, the extension length of the first receiving area is greater than the extension length of the second receiving area.

[0022] A third aspect of this disclosure provides a cleaning device, comprising:

[0023] Dust box assembly according to any one of the above; and

[0024] A fan bracket is provided on the side of the housing with the first air outlet. The fan bracket has a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet.

[0025] In some embodiments, at least one sidewall of the second air inlet is an expansion wall, which is recessed in a direction away from the second air inlet to form an expansion area.

[0026] In some embodiments, the expansion wall is one of an arc surface and a bent surface; and / or, the number of sidewalls of the second air inlet is greater than or equal to 4; and / or, in a projection plane parallel to the first air outlet, the projection of the second air inlet is located within the projection range of the first air outlet.

[0027] In some embodiments, the fan support has a first air duct and a second air duct, one side of the first air duct being open to form a second air inlet, and one side of the second air duct being open to form a second air outlet; the first air duct extends along a fourth direction, and the second air duct extends along a fifth direction, the fourth direction and the fifth direction forming a first angle; the fan support includes a guide surface located at the first angle to guide at least a portion of the airflow flowing along the first air duct to flow into the second air duct.

[0028] In some embodiments, the guiding surface is one of a guiding slope and a guiding arc; and / or, the angle of the first included angle is less than or equal to 90°.

[0029] In some embodiments, the fan support further includes a sidewall located on the side of the guide surface, the guide surface and the sidewall form a third air duct at intervals, and the opposite ends of the third air duct are respectively connected to the first air duct and the second air duct.

[0030] In some embodiments, the third air duct forms a second angle with the first air duct, and the third air duct forms a third angle with the second air duct, wherein the angles of the second angle and the third angle are both greater than the angle of the first angle; and / or, the fan bracket includes a bracket base and a bracket upper shell, the bracket base has the air guiding surface, the bracket upper shell has the side wall surface, and the bracket base is detachably mounted on the bracket upper shell to jointly enclose and form the third air duct.

[0031] This disclosure provides a filter structure, a dust box assembly, and a cleaning device. The filter structure includes a filter holder and a filter. The filter holder includes a filter mounting area. The filter is disposed on the filter holder and has a shape adapted to the filter mounting area.

[0032] The filter installation area is a designated area (geometric area) or a physically defined area (e.g., with dividers).

[0033] Furthermore, the filter mounting area includes at least a first filter mounting area and a second filter mounting area, meaning the filter support comprises multiple mounting areas. The first filter mounting area is located on one side of the second filter mounting area along a first direction. Along a second direction, the extension length of the first filter mounting area is greater than the extension length of the second filter mounting area.

[0034] Therefore, by dividing the filter mounting area into at least two regions, it is easy to extend the length of the first mounting area of ​​the filter along the second direction, so that the length of the first mounting area of ​​the filter along the second direction is longer than that of the second mounting area of ​​the filter, which can achieve the purpose of expanding the capacity, thereby maximizing the overall area of ​​the filter, increasing the overall flow area of ​​the filter, and thus increasing the flow air volume, thereby improving the cleaning performance of the cleaning equipment.

[0035] Furthermore, preferably, the filter screen includes at least a first filter screen and a second filter screen; the first filter screen is disposed in a first installation area of ​​the filter screen, and the second filter screen is disposed in a second installation area of ​​the filter screen.

[0036] Similarly, the division of the first and second filters can refer to different regions (geometric concept regions) or physically divided regions (e.g., different blocks) of the same filter.

[0037] Since the dimensions of the first and second installation areas of the filter screen are different along the second direction, by setting two sub-filter screens of different lengths (i.e., the first filter screen and the second filter screen), it is possible to match the first and second installation areas of the filter screen without having to use a single irregularly shaped filter screen, which facilitates the processing and manufacturing of the filter screen. Attached Figure Description

[0038] Figure 1 is a schematic diagram of the cooperation relationship between the dust box assembly and the fan bracket according to an embodiment of the present disclosure, and the fan is shown in the figure;

[0039] Figure 2 is a schematic diagram of the filter structure in Figure 1;

[0040] Figure 3 is a magnified view of part A in Figure 2;

[0041] Figure 4 is an exploded view of the filter structure in Figure 2;

[0042] Figure 5 is a schematic diagram of the wind turbine support structure in Figure 1;

[0043] Figure 6 is an exploded view of the wind turbine support in Figure 5;

[0044] Figure 7 is a cross-sectional view of the wind turbine support in Figure 5.

[0045] Explanation of reference numerals in the attached drawings: 10. Dust box assembly; 11. Box body; 11a. First air outlet; 11b. Receiving cavity; 11ba. First receiving area; 11bb. Second receiving area; 12. Filter structure; 121. Filter support; 121a. Reinforcing cavity; 1211. First installation area of ​​filter; 1212. First side wall; 1213. Second installation area of ​​filter; 1214. Second side wall; 1215. Connecting wall; 122. First filter; 123. Second filter; 20. Fan support; 21. Expansion wall; 22. Support base; 23. Support upper shell; 20a. Second air inlet; 20b. Second air outlet; 20c. Expansion area; 20d. First air duct; 20e. Second air duct; 20f. Guide surface; 20g. Side wall surface; 20h. Third air duct; 30. Fan. Detailed Implementation

[0046] In this disclosure, the orientations or positional relationships of "first direction" and "second direction" are based on the orientations or positional relationships shown in Figure 2, and the orientations or positional relationships of "fourth direction" and "fifth direction" are based on the orientations or positional relationships shown in Figure 7. It should be understood that these orientational terms are only for the convenience of describing this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this disclosure.

[0047] This disclosure provides a filter structure 12, as shown in Figures 2 and 4. The filter structure 12 includes a filter support 121 and a filter.

[0048] The filter support 121 has a filter mounting area, which includes at least a first filter mounting area 1211 and a second filter mounting area 1213. The first filter mounting area 1211 is located on one side of the second filter mounting area 1213 along a first direction. Along a second direction, the extension length of the first filter mounting area 1211 is greater than the extension length of the second filter mounting area 1213. The first direction and the second direction are perpendicular.

[0049] The filter screen is mounted on the filter screen holder 121 and has a shape adapted to the filter screen mounting area.

[0050] This disclosure also provides a dust box assembly 10. Please refer to FIG1. ​​The dust box assembly 10 includes a box body 11 and a filter structure 12 in any embodiment of this disclosure.

[0051] The box 11 has a first air inlet, a first air outlet 11a and a receiving cavity 11b. The first air inlet and the first air outlet 11a are respectively connected to the receiving cavity 11b to form an airflow path that flows through the first air inlet, the receiving cavity 11b and the first air outlet 11a in sequence.

[0052] The filter structure 12 is disposed within the receiving cavity 11b and is located in the airflow path.

[0053] This disclosure also provides a cleaning device, as shown in FIG1. ​​The cleaning device includes a fan bracket 20 and a dust box assembly 10 according to any embodiment of this disclosure.

[0054] The fan bracket 20 is located on the side of the housing 11 with the first air outlet 11a. The fan bracket 20 has a second air inlet 20a and a second air outlet 20b. The second air inlet 20a is connected to the first air outlet 11a.

[0055] Specifically, the filter structure 12 and dust box assembly 10 of the present disclosure embodiments can be applied to any type of device. For ease of description, the present disclosure embodiments are described using the filter structure 12 for the dust box assembly 10 of the cleaning device as an example.

[0056] The cleaning equipment in this disclosure can be any type of cleaning device, such as a cleaning robot, a vacuum cleaner, etc. For ease of description, this disclosure uses a cleaning robot as an example for description.

[0057] Specifically, the fan bracket 20 of the cleaning equipment is used to connect the dust box assembly 10 and the fan 30 of the cleaning equipment. The second air inlet 20a of the fan bracket 20 is used to connect with the first air outlet 11a of the dust box assembly 10, while the second air outlet 20b is used to connect with the fan 30 of the cleaning equipment.

[0058] The filter structure 12 is disposed in the receiving cavity 11b of the housing 11 to filter dust and debris drawn into the housing 11 by the airflow, thereby reducing the risk of dust and debris flowing into the fan 30 with the airflow.

[0059] When the fan 30 is turned on, the airflow flows along the airflow path, entering the receiving cavity 11b from the first air inlet. As it flows through the filter structure 12 within the receiving cavity 11b, debris and dust in the airflow are filtered out by the filter structure 12 and do not continue to flow with the airflow. The airflow separated from the dust and debris passes through the filter structure 12 and continues to flow along the airflow path to the first air outlet 11a, then flows through the second air inlet 20a and the second air outlet 20b and is discharged by the fan 30 of the cleaning equipment.

[0060] Specifically, the shape of at least a portion of the filter screen is adapted to the shape of the filter screen mounting area to facilitate the installation of the filter screen into the filter screen mounting area.

[0061] For example, the filter screen includes at least a first filter screen 122 and a second filter screen 123. The first filter screen 122 is disposed within a first mounting area 1211 of the filter screen. The second filter screen 123 is disposed within a second mounting area 1213 of the filter screen; along a second direction, the length of the first filter screen 122 is greater than the length of the second filter screen 123.

[0062] The division of the first filter 122, the second filter 123, etc., can refer to different areas (geometric concept areas) or physically divided areas (e.g., different blocks) of the same filter. Thus, they correspond to the first installation area 1211 and the second installation area 1213 of the filter, respectively.

[0063] In other words, the filter structure 12 includes a filter support 121 and at least two filter screens, namely a first filter screen 122 and a second filter screen 123. Both the first filter screen 122 and the second filter screen 123 are installed in the mounting area of ​​the filter support 121.

[0064] The specific structural forms of the first filter 122 and the second filter 123 are not limited. Since the filter structure 12 is formed by splicing two sub-filters, even if the filter support 121 is an irregular structure, the first filter 122 and the second filter 123 can adopt conventional structural forms, such as both being rectangular filters. Of course, depending on actual needs, the first filter 122 and the second filter 123 can also adopt irregular irregular structural forms.

[0065] In some embodiments, the filter mounting area further includes at least a third filter mounting area. That is, in addition to the first filter mounting area 1211 and the second filter mounting area 1213, the filter support 121 may also include other areas for mounting the filter.

[0066] In some embodiments, the filter screen includes a third filter screen disposed within a third mounting area. That is, the filter screen may also include a third filter screen corresponding to the third mounting area.

[0067] For a filter screen that includes at least a first filter screen 122 and a second filter screen 123, the first installation area 1211 and the second installation area 1213 refer to the specific structures of the filter screen bracket 121 used to install the first filter screen 122 and the second filter screen 123, respectively. In fact, the first installation area 1211 includes a first frame and a first filter screen installation cavity formed by the first frame, while the second installation area 1213 includes a second frame and a second filter screen installation cavity formed by the second frame.

[0068] The installation area of ​​the filter support 121 adopts an irregular structure, meaning that the installation area of ​​the filter support 121 is not a conventional structure (such as a rectangle). Specifically, the filter support 121 includes two installation areas: a first installation area 1211 and a second installation area 1213. The length of the first installation area 1211 along the second direction is greater than the length of the second installation area 1213. This allows for a partial expansion of the installation area of ​​the first installation area 1211, thereby increasing the filter installation area of ​​the filter structure 12.

[0069] It should be noted that the filter structure 12 in this embodiment is not an overall expansion of the first installation area 1211 and the second installation area 1213 of the filter. On the one hand, it can increase the installation area of ​​the filter by local expansion, and on the other hand, it can also take into account the overall size of the filter structure 12.

[0070] In fact, the filter holder 121 is a single filter frame containing two pieces of filter paper. The first direction and the second direction are the length and width directions of the filter holder 121, respectively, and are not the thickness direction of the filter holder 121. For example, the first direction can be the length direction of the filter holder 121, and the second direction can be the width direction of the filter holder 121. Or, the second direction can be the length direction of the filter holder 121, and the first direction can be the width direction of the filter holder 121.

[0071] Of course, depending on the actual situation, the first installation area 1211 and the second installation area 1213 of the filter screen can be located in the same plane, that is, the first filter screen 122 and the second filter screen 123 can be spliced ​​together in the same plane to form a whole filter screen. Of course, in other embodiments, the first installation area 1211 and the second installation area 1213 of the filter screen can also be misaligned to a certain extent.

[0072] The first installation area 1211 of the filter screen is located on one side of the second installation area 1213 of the filter screen along the first direction. Depending on the actual situation, the installation cavities of the two can be interconnected, or they can be separated by a partition strip.

[0073] In summary, in the filter structure 12 of this embodiment, by dividing the filter support 121 into two areas for mounting the filter, it is convenient to extend the length of the first mounting area 1211 of the filter along the second direction. This makes the length of the first mounting area 1211 of the filter along the second direction longer than that of the second mounting area 1213 of the filter, thereby achieving the purpose of expanding the capacity. This maximizes the overall area of ​​the filter, increases the overall flow area of ​​the filter, and further increases the flow air volume, thereby improving the cleaning performance of the cleaning equipment.

[0074] For a filter screen including at least a first filter screen 122 and a second filter screen 123, since the dimensions of the first mounting area 1211 and the second mounting area 1213 of the filter screen are different along the second direction, by setting two sub-filter screens of different lengths (i.e., the first filter screen 122 and the second filter screen 123), it is possible to match the first mounting area 1211 and the second mounting area 1213 of the filter screen without having to adopt a single irregularly shaped filter screen setting method, which facilitates the processing and manufacturing of the filter screen.

[0075] In some embodiments, referring to Figures 2 and 3, along at least one side of the second direction, the first mounting area 1211 of the filter screen includes a first sidewall 1212, and the second mounting area 1213 of the filter screen includes a second sidewall 1214.

[0076] Along the second direction, the first sidewall 1212 extends relative to the second sidewall 1214 to form a transition step together. As a result, the filter support 121 is also irregularly shaped, which can minimize the external dimensions of the filter support 121 while meeting the requirements for installing the first filter 122 and the second filter 123.

[0077] Specifically, on one side along the second direction, the sidewall of the first mounting area 1211 of the filter screen extends relative to the sidewall of the second mounting area 1213 of the filter screen. On the other side along the second direction, the sidewall of the first mounting area 1211 of the filter screen is flush with the sidewall of the second mounting area 1213 of the filter screen along the first direction.

[0078] Of course, in other embodiments, the sidewalls of the first filter mounting area 1211 may extend relative to the sidewalls of the second filter mounting area 1213 on both sides along the second direction. This achieves the purpose of expanding the capacity of the first filter mounting area 1211.

[0079] In some embodiments, referring to Figures 2 and 3, the filter support 121 further includes a connecting wall 1215, the opposite ends of which are respectively connected to the first side wall 1212 and the second side wall 1214 to form a reinforcing cavity 121a. Thus, by providing the connecting wall 1215, the structural strength of the filter support 121 can be improved.

[0080] It should be noted that the connecting wall 1215, the first side wall 1212, and the second side wall 1214 can be an integrally formed structure or a separate connecting structure.

[0081] The specific shape of the connecting wall 1215 is not limited. For example, the connecting wall 1215 can be an arc-shaped wall. In fact, the first side wall 1212 and the second side wall 1214 are smoothly transitioned through the arc-shaped wall. This reduces the abrupt change points on the outer circumference of the filter support 121, making the shape of the filter support 121 smoother.

[0082] Of course, in other embodiments, the connecting wall 1215 may also be a planar wall.

[0083] In some embodiments, referring to Figures 2 to 4, at least one side of the reinforcing cavity 121a is closed along a third direction; wherein the third direction is perpendicular to the first direction and the second direction, respectively. Thus, by further improving the structural strength at the reinforcing cavity 121a, the structural stability of the filter support 121 is improved.

[0084] In fact, the third direction refers to the thickness direction of the filter structure 12. Depending on the actual situation, the reinforcing cavity 121a can be closed on one side along the third direction, or it can be closed on both opposite sides along the third direction.

[0085] The lateral closure of the reinforcing cavity 121a along the third direction is formed by extending the bottom surface of the filter support 121, thereby achieving the lateral closure of the reinforcing cavity 121a along the third direction.

[0086] In some embodiments, the filter structure 12 is disposed within the receiving cavity 11b to separate a dust collection chamber located on the side of the filter structure 12 near the first air inlet. That is, the dust collection chamber is part of the receiving cavity 11b, which is divided within the receiving cavity 11b by the filter structure 12, thereby enabling a portion of the receiving cavity 11b to be used for dust collection, while another portion is used to communicate with the fan bracket 20.

[0087] In some embodiments, the first air outlet 11a is located on the side of the second filter mounting area 1213 away from the first filter mounting area 1211, and the first air outlet 11a is connected to the sides of both the first filter mounting area 1211 and the second filter mounting area 1213 away from the first air inlet. This facilitates the placement of the fan bracket 20 and the fan 30 on the side of the dust box assembly 10, and also facilitates the arrangement of the fan 30.

[0088] The filters include a first filter 122 and a second filter 123, with the first air outlet 11a located on the side of the second filter 123 opposite to the first filter 122. In fact, the first air inlet and dust collection chamber of the housing 11 are both located on the bottom sides of the first filter 122 and the second filter 123, while the first air outlet 11a of the housing 11 is located on one circumferential side of the second filter 123, rather than on the top side of the first filter 122 and the second filter 123. This avoids excessive thickness in the top-to-bottom direction when the fan bracket 20 and the fan 30 are installed on the top side of the dust box assembly 10.

[0089] It should be noted that the first air outlet 11a is connected not only to the side of the first filter installation area 1211 opposite to the first air inlet, but also to the side of the second filter installation area 1213 opposite to the first air inlet, thereby ensuring the ventilation effect.

[0090] In some embodiments, referring to FIG1, the receiving cavity 11b has a first receiving area 11ba and a second receiving area 11bb that are in communication with each other; the first filter mounting area 1211 is located in the first receiving area 11ba, and the second filter mounting area 1213 is located in the second receiving area 11bb.

[0091] Along the second direction, the extension length of the first receiving area 11ba is greater than the extension length of the second receiving area 11bb.

[0092] In other words, the receiving cavity 11b of the box 11 is also matched with the shape of the filter structure 12, thereby minimizing the overall size of the box 11 while meeting the installation requirements of the filter structure 12.

[0093] In fact, in order to meet the extension requirements of the first filter 122 along the second direction, the box 11 also adopts an irregular structure rather than a conventional structure (such as a rectangle), which makes it easier to install the filter structure 12.

[0094] In some embodiments, referring to Figure 5, at least one sidewall of the second air inlet 20a is an expansion wall 21, which is recessed in a direction away from the second air inlet 20a to form an expansion area 20c. This increases the opening size of the air inlet of the fan bracket 20, significantly increasing the airflow and thus improving the overall airflow of the cleaning equipment, thereby enhancing cleaning performance.

[0095] Specifically, the second air inlet 20a can have only one side wall in the circumferential direction as the expansion wall 21, that is, the expansion area 20c is formed by a relatively concave manner to increase the area of ​​the second air inlet 20a. Of course, depending on the actual situation, the second air inlet 20a can also have multiple or all of its side walls in the circumferential direction as the expansion wall 21.

[0096] It is understandable that the expansion zone 20c is a part of the second air inlet 20a, which is formed by the expansion wall 21 being recessed.

[0097] It should be noted that the specific shape of the expansion wall 21 is not limited.

[0098] For example, the expansion wall 21 is an arc surface, that is, the expansion wall 21 is an arc-shaped wall.

[0099] For example, the expanded wall 21 is a bent surface, meaning that the expanded wall 21 is formed by bending a plane. For instance, it is formed by bending the plane twice towards the bottom.

[0100] In one specific embodiment, the number of sidewall surfaces 20g of the second air inlet 20a is greater than or equal to 4. For example, the second air inlet 20a is a quadrilateral with an arc-shaped wall, or it is a hexagon. Compared with the conventional rectangular design, the opening area of ​​the second air inlet 20a in this embodiment is larger, resulting in better ventilation.

[0101] In some embodiments, the projection of the second air inlet 20a is located within the projection range of the first air outlet 11a in a projection plane parallel to the first air outlet 11a. This allows the first air outlet 11a of the housing 11 to match the second air inlet 20a of the fan bracket 20, ensuring the effective flow of the second air inlet 20a.

[0102] Specifically, the opening shape of the first air outlet 11a can be the same as the opening shape of the second air inlet 20a, and the opening area of ​​the first air outlet 11a can be the same as the opening area of ​​the second air inlet 20a, thereby ensuring the flow effect of the fan bracket 20.

[0103] In other embodiments, the opening area of ​​the first air outlet 11a may be larger than the opening area of ​​the second air inlet 20a.

[0104] In some embodiments, please refer to Figures 6 and 7, the fan bracket 20 has a first air duct 20d and a second air duct 20e, one side of the first air duct 20d is open to form a second air inlet 20a; one side of the second air duct 20e is open to form a second air outlet 20b.

[0105] The first air duct 20d extends along the fourth direction, and the second air duct 20e extends along the fifth direction, with the fourth and fifth directions forming the first angle.

[0106] The fan bracket 20 includes a guide surface 20f located at the first included angle to guide at least a portion of the airflow flowing along the first air duct 20d into the second air duct 20e. By setting the guide surface 20f, the airflow flowing in from the second air inlet 20a can be better guided to flow out through the second air outlet 20b, which can reduce the swirling airflow at the first included angle, reduce airflow loss, thereby increasing the overall air volume of the machine and improving cleaning performance.

[0107] Specifically, the first air duct 20d is the air inlet duct of the fan support 20, and the second air inlet 20a can be located on any side of the first air duct 20d. In other words, the second air inlet 20a can be formed by opening up any area of ​​the first air duct 20d.

[0108] The second air duct 20e is the air outlet duct of the fan bracket 20. The second air outlet 20b can be located on any side of the second air duct 20e. In other words, the second air outlet 20b can be formed by opening up any area of ​​the second air duct 20e.

[0109] The extension directions of the first air duct 20d and the second air duct 20e form a certain angle, namely the first included angle. Due to the existence of the first included angle, there will be a certain amount of swirling airflow at the first included angle.

[0110] For example, the angle of the first included angle is less than or equal to 90°. That is, when the first included angle is an acute angle or a right angle, there will be a more obvious swirling airflow at the first included angle.

[0111] By setting a guide surface 20f at the first included angle, the airflow at the first included angle can be guided to flow toward the second air duct 20e, thereby improving the flow effect.

[0112] It should be noted that the specific shape of the guide surface 20f is not limited. For example, the guide surface 20f can be a guide slope.

[0113] For example, the guide surface 20f is a guide arc surface. Using either an arc surface or a sloped surface can ensure that the guide surface 20f has a good guiding effect.

[0114] In some embodiments, referring to FIG7, the fan support 20 further includes a sidewall 20g located opposite the guide surface 20f. The guide surface 20f and the sidewall 20g form a third air duct 20h at intervals. The two ends of the third air duct 20h are respectively connected to the first air duct 20d and the second air duct 20e. That is, by providing the sidewall 20g opposite the guide surface 20f, the sidewall 20g and the guide surface 20f can jointly form the third air duct 20h. The third air duct 20h is an intermediate air duct, which facilitates the flow of air from the first air duct 20d to the second air duct 20e.

[0115] In some embodiments, the third air duct 20h forms a second angle with the first air duct 20d, and the third air duct 20h forms a third angle with the second air duct 20e, both of which are greater than the first angle. This significantly improves the airflow guiding effect of the third air duct 20h and reduces the formation of swirling airflow.

[0116] Specifically, since a third air duct 20h is formed between the first air duct 20d and the second air duct 20e, the angle between the third air duct 20h and the first air duct 20d and the second air duct 20e is larger than the angle between the first air duct and the second air duct 20e. Therefore, it can increase the angle within the air duct of the fan support 20 to reduce the formation of swirling airflow.

[0117] In some embodiments, referring to Figure 6, the fan bracket 20 includes a bracket base 22 and a bracket upper shell 23. The bracket base 22 has a guide surface 20f, and the bracket upper shell 23 has a side wall surface 20g. The bracket base 22 is detachably mounted on the bracket upper shell 23 to jointly enclose and form a third air duct 20h. Thus, the fan bracket 20 adopts a detachable structure, which facilitates the disassembly and assembly of the fan bracket 20 and makes maintenance and replacement easier.

[0118] In the description of this disclosure, references to terms such as "in one embodiment," "in some embodiments," "in a specific embodiment," or "exemplary," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the embodiments of this disclosure. In this disclosure, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, those skilled in the art can combine the different embodiments or examples described in this disclosure, as well as the features of those different embodiments or examples, without contradiction.

[0119] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure are included within the scope of protection of this disclosure.

Claims

1. A filter structure, comprising: A filter holder has a filter mounting area, which includes at least a first filter mounting area and a second filter mounting area. The first filter mounting area is located on one side of the second filter mounting area along a first direction. Along a second direction, the extension length of the first filter mounting area is greater than the extension length of the second filter mounting area. The first direction and the second direction are perpendicular. A filter screen, wherein the filter screen is disposed on the filter screen support and has a shape adapted to the filter screen mounting area.

2. The filter structure according to claim 1, wherein, The filter screen includes at least a first filter screen and a second filter screen; the first filter screen is disposed in the first installation area of ​​the filter screen; the second filter screen is disposed in the second installation area of ​​the filter screen; along the second direction, the length of the first filter screen is greater than the length of the second filter screen.

3. The filter structure according to claim 1 or 2, wherein, The filter installation area also includes at least a third filter installation area.

4. The filter structure according to claim 3, wherein, The filter screen includes a third filter screen, which is disposed within the third installation area of ​​the filter screen.

5. The filter structure according to claim 1 or 2, wherein, The first installation area and the second installation area of ​​the filter are located in the same plane.

6. The filter structure according to claim 1 or 2, wherein, Along at least one side of the second direction, the first mounting area of ​​the filter screen includes a first sidewall, and the second mounting area of ​​the filter screen includes a second sidewall; Along the second direction, the first sidewall extends relative to the second sidewall to jointly form a transition step.

7. The filter structure according to claim 6, wherein, The filter support also includes a connecting wall, the two opposite ends of which are respectively connected to the first side wall and the second side wall to form a reinforcing cavity together with the first side wall and the second side wall.

8. The filter structure according to claim 7, wherein, The connecting wall is an arc-shaped wall; and / or, Along a third direction, at least one side of the reinforcing cavity is closed, wherein the third direction is perpendicular to the first direction and the second direction, respectively.

9. A dustbin assembly, comprising: The box body has a first air inlet, a first air outlet and a receiving cavity, wherein the first air inlet and the first air outlet are respectively connected to the receiving cavity to form an airflow path that flows sequentially through the first air inlet, the receiving cavity and the first air outlet; and According to any one of claims 1-8, the filter structure is disposed within the receiving cavity and located on the airflow path.

10. The dustbin assembly according to claim 9, wherein, The filter structure is disposed within the receiving cavity to separate a dust collection cavity located on the side of the filter structure near the first air inlet; And / or, The first air outlet is located on the side of the second filter installation area away from the first filter installation area, and the first air outlet is connected to the side of the first filter installation area and the side of the second filter installation area away from the first air inlet.

11. The dustbin assembly according to claim 9 or 10, wherein, The receiving cavity has a first receiving area and a second receiving area that are interconnected. The first installation area of ​​the filter screen is located in the first receiving area, and the second installation area of ​​the filter screen is located in the second receiving area. Along the second direction, the extension length of the first accommodating area is greater than the extension length of the second accommodating area.

12. A cleaning device, comprising: The dustbin assembly according to any one of claims 9 to 11; and A fan bracket is provided on the side of the housing with the first air outlet. The fan bracket has a second air inlet and a second air outlet, and the second air inlet is connected to the first air outlet.

13. The cleaning equipment according to claim 12, wherein, The second air inlet has at least one sidewall that is an expansion wall, which is recessed in the direction away from the second air inlet to form an expansion zone.

14. The cleaning equipment according to claim 13, wherein, The expanded wall is one of an arc surface and a bent surface; and / or The number of sidewall surfaces of the second air inlet is greater than or equal to 4; and / or Within a projection plane parallel to the first air outlet, the projection of the second air inlet lies within the projection range of the first air outlet.

15. The cleaning equipment according to any one of claims 12-14, wherein, The fan support has a first air duct and a second air duct, with one side of the first air duct open to form a second air inlet and one side of the second air duct open to form a second air outlet. The first air duct extends along a fourth direction, and the second air duct extends along a fifth direction, with the fourth direction and the fifth direction forming a first angle. The fan support includes a guide surface located at the first angle to guide at least a portion of the airflow flowing along the first duct into the second duct.

16. The cleaning equipment according to claim 15, wherein, The guiding surface is one of a guiding inclined surface and a guiding arc surface; and / or The angle of the first included angle is less than or equal to 90°.

17. The cleaning equipment according to claim 15, wherein, The fan support also includes a side wall located on the side of the guide surface, the guide surface and the side wall form a third air duct at intervals, and the opposite ends of the third air duct are respectively connected to the first air duct and the second air duct.

18. The cleaning equipment according to claim 17, wherein, The third air duct forms a second angle with the first air duct, and the third air duct forms a third angle with the second air duct, wherein the angles of the second angle and the third angle are both greater than the angle of the first angle; and / or The fan support includes a support base and a support upper shell. The support base has the airflow guiding surface, and the support upper shell has the side wall surface. The support base is detachably mounted on the support upper shell to jointly enclose and form the third air duct.

Images