Filter structure and fan

Abstract

This application relates to a filter structure and a fan. The filter structure includes a base; a filter assembly, one end of which is connected to the base; and an opening / closing mechanism disposed on the base and capable of moving relative to the base to switch the filter assembly between a filtering state and a non-filtering state. By using the opening / closing mechanism to move relative to the base and switch the filter assembly between the filtering state and the non-filtering state, the filter assembly does not need to be removed from the fan body. The selection and switching between the purification mode corresponding to the filtering state and the high-volume mode corresponding to the non-filtering state can be achieved within the fan unit, thereby simplifying the operation process.

Description

Technical Field

[0001] This application relates to the field of fan technology, and in particular to a filter structure and a fan. Background Technology

[0002] As the concept of healthy living gains popularity, consumers are paying increasing attention to the health functions of home appliances. Consequently, in recent years, fans, especially circulation fans, have become increasingly popular due to their large air volume and rapid air circulation throughout the room. Therefore, the market has introduced products that leverage this rapid air circulation feature by adding filters to circulation fans to remove dust, particles, and other harmful substances from the air, thereby purifying the air.

[0003] Currently, most fan filters on the market are installed after the unit is removed from the machine. Installing a filter inevitably reduces the overall airflow, making it cumbersome for users to switch between purification and high-airflow modes. Summary of the Invention

[0004] Therefore, it is necessary to address the cumbersome operation of switching between purification mode and high airflow mode in existing fan filters, and to provide a filter structure and fan that can simplify the operation of switching between purification mode and high airflow mode.

[0005] In a first aspect, this application provides a filtering structure, including:

[0006] Base;

[0007] The filter assembly, one end of which is connected to the base; and

[0008] The opening and closing mechanism is located on the base and can move relative to the base to drive the filter assembly to switch between the filtering state and the non-filtering state.

[0009] In one embodiment, the filtering assembly includes a filter element that expands when the filtering assembly is in a filtering state and retracts when the filtering assembly is in a non-filtering state.

[0010] In one embodiment, one end of the filter assembly is rotatably connected to the base to switch between a filtered state and a non-filtered state.

[0011] In one embodiment, the filter assembly further includes multiple frames, one end of each frame being mated with the base, and the filter element being disposed between two adjacent frames.

[0012] When the filter assembly is in the filtering state, the multiple frames unfold; when the filter assembly is in the non-filtering state, the multiple frames retract.

[0013] In one embodiment, when the filter assembly is in the filtering state, multiple skeletons open radially.

[0014] In one embodiment, the filter assembly further includes a first elastic element, wherein the other end of each frame away from the base is connected by the first elastic element, the first elastic element being used to provide a force that causes the multiple frames to have a tendency to move from unfolding to retracting, or to provide a force that causes the multiple frames to have a tendency to move from retracting to unfolding.

[0015] In one embodiment, the opening and closing mechanism can move relative to the base in a direction toward or away from the filter assembly to drive the filter assembly to switch between a filtering state and a non-filtering state.

[0016] In one embodiment, the opening and closing mechanism is slidably engaged with the base.

[0017] In one embodiment, the base has a sliding through hole, the opening and closing mechanism is slidably disposed in the sliding through hole, and one end of the filter assembly extends into the sliding through hole to cooperate with the opening and closing mechanism.

[0018] In one embodiment, the opening and closing mechanism has a first limiting part and the base has a second limiting part. When the filter assembly is in a non-filtering state, a portion of the filter assembly is limited to the first limiting part and disengaged from the second limiting part.

[0019] When the filter assembly is in the filtering state, a portion of the filter assembly is limited to the second limiting portion and disengaged from the first limiting portion.

[0020] In one embodiment, the base has a mating part, and the opening and closing mechanism includes an opening and closing body and a locking part, with the locking part located on the opening and closing body;

[0021] The opening and closing body is located on the base and can move relative to the base so that the locking part can switch between a locking position that engages with the mating part and an unlocking position that separates the mating part. When the locking part is in the locking position, the filter assembly is in the filtering state, and when the locking part is in the unlocking position, the filter assembly is in the non-filtering state.

[0022] In one embodiment, the filter structure further includes a second elastic member disposed between the opening / closing body and the base, the second elastic member being used to provide a force that causes the locking part to have a tendency to move from the locking position to the unlocking position.

[0023] In one embodiment, the filtering structure further includes an unlocking member that is operable to move relative to the opening and closing body to cause the locking portion to move from the locking position to the unlocking position.

[0024] In one embodiment, the direction of movement of the unlocking element relative to the opening / closing body is parallel to the direction of movement of the opening / closing body relative to the base.

[0025] In one embodiment, one of the locking part and the mating part includes at least two opposing elastic buckles, and the other of the locking part and the mating part includes a fixed buckle. When the locking part is in the locked position, the elastic buckle and the fixed buckle engage, and when the locking part is in the unlocked position, the elastic buckle and the fixed buckle disengage.

[0026] Secondly, a fan is also provided, including the filter structure described above.

[0027] In one embodiment, the fan includes a first shroud having a base, and a filter assembly disposed inside the first shroud.

[0028] In one embodiment, the fan further includes a housing, a second shroud, and fan blades. The housing is configured as a through-hole structure with openings at both ends. The first and second shrouds are respectively positioned over the two openings, and the fan blades are positioned closer to the second shroud than the first shroud.

[0029] The aforementioned filter structure and fan, by using an opening and closing mechanism to move relative to the base, drive the filter component to switch between a filtering state and a non-filtering state. This allows the filter component to be switched between a purification mode corresponding to the filtering state and a high-volume mode corresponding to the non-filtering state within the machine without having to be removed from the fan body, thus simplifying the operation process. Attached Figure Description

[0030] Figure 1 A schematic diagram of the fan structure in one embodiment of this application is shown;

[0031] Figure 2 It shows Figure 1 The diagram shows a cross-sectional view of the filter assembly in the fan when it is in an unfiltered state.

[0032] Figure 3 It shows Figure 1 The diagram shows a cross-sectional view of the filter assembly in the fan when it is in the filtering state.

[0033] Figure 4 It shows Figure 1 A schematic diagram of the frame of the filter structure in the fan shown;

[0034] Figure 5 It shows Figure 1 A schematic diagram of the opening and closing mechanism of the filter structure in the fan shown;

[0035] Figure 6 It shows Figure 1 The diagram shows the structure of the first fan shroud in the fan shown.

[0036] Figure 7 It shows Figure 1 The diagram shows the structure of the unlocking component of the filter structure in the fan.

[0037] Figure label:

[0038] The filter structure 100, base 10, second limiting part 11, sliding through hole 12, mating part 13, elastic buckle 131, filter assembly 20, filter element 21, frame 22, first section 221, second section 222, middle section 223, first elastic element 23, opening and closing mechanism 30, first limiting part 31, opening and closing body 32, locking part 33, fixing buckle 331, second elastic element 40, unlocking part 50;

[0039] Fan 200, first fan cover 210, housing 220, second fan cover 230, fan blades 240. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0042] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0047] The accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the components are shown in the drawings only as examples and not necessarily to actual scale.

[0048] Figure 1 A schematic diagram of the fan structure in one embodiment of this application is shown; Figure 2 It shows Figure 1 The diagram shows a cross-sectional view of the filter assembly in the fan when it is in an unfiltered state. Figure 3 It shows Figure 1The diagram shows a cross-sectional view of the filter assembly in the fan when it is in the filtering state.

[0049] Referring to the accompanying drawings, one embodiment of this application provides a filter structure 100, including a base 10, a filter assembly 20, and an opening and closing mechanism 30. The filter structure 100 of this application is applied to a fan 200, specifically a circulating fan, or other devices that utilize the filter structure 100; the specific application is not limited.

[0050] One end of the filter structure 100 is connected to the base 10. The opening and closing mechanism 30 is located on the base 10 and can move relative to the base 10 to drive the filter assembly 20 to switch between the filtering state and the non-filtering state.

[0051] The filtration state referred to in this application means that the filter component 20 can filter the incoming air. The filtration function refers to the removal or reduction of harmful substances such as dust and particles in the air. The non-filtration state refers to the state in which the filter component 20 weakens its filtration function, specifically the state in which there is no filtration function at all or the filtration function is weak.

[0052] By using the opening and closing mechanism 30 to move relative to the base 10, the filter component 20 is switched between the filtering state and the non-filtering state. This allows the filter component 20 to be switched between the purification mode corresponding to the filtering state and the high air volume mode corresponding to the non-filtering state without having to be removed from the fan body. This simplifies the operation process.

[0053] In embodiments of this application, a user can operate the opening and closing mechanism 30 from the outside of the fan 200 to switch the filter assembly 20 between a filtering state and a non-filtering state.

[0054] In some embodiments, the filter assembly 20 includes a filter element 21, which expands when the filter assembly 20 is in a filtering state and retracts when the filter assembly 20 is in a non-filtering state.

[0055] Typically, the filter assembly 20 is located within the airflow channel. Therefore, by expanding and retracting the filter element 21, the filter element 21 can be quickly expanded within the channel, thereby enabling the air within the channel to be filtered or unfiltered, thus improving the reliability of the filter assembly 20 in switching between the filtering and unfiltering states.

[0056] In specific embodiments of this application, the filter element 21 may include a filter screen, a filter membrane, or filter paper, etc., and is not specifically limited.

[0057] In some embodiments, the filter assembly 20 further includes a support member, on which the filter member 21 is disposed. When the filter assembly 20 is in a filtering state, the support member is extended; when the filter assembly 20 is in a non-filtering state, the support member is retracted.

[0058] By providing a support, the filter element 21 can be supported, thereby making the opening and closing of the filter element 21 reliable.

[0059] Please continue reading. Figure 1 Specifically, in the embodiments of this application, the support includes multiple frames 22, one end of each frame 22 being connected to the base 10, and the filter element 21 covering the space between two adjacent frames 22. When the filter assembly 20 is in the filtering state, the multiple frames 22 are extended; when the filter assembly 20 is in the non-filtering state, the multiple frames 22 are retracted.

[0060] By setting the frame 22, the filter element 21 can be supported, and the spacing between the frames 22 is large. When the filter assembly 20 is in the filtering state, the unfolded area of ​​the filter element 21 is also large, avoiding occupying too much filtering space, thus improving the filtering effect.

[0061] In other embodiments, the support element may also be a support mesh, etc., and there is no specific limitation.

[0062] Furthermore, when the filter assembly 20 is in the filtering state, the multiple skeletons 22 open radially.

[0063] The multiple radially opening skeletons 22 can be concentrated at one end, thereby allowing the opening and closing mechanism 30 to concentrate the opening and closing operations of the multiple skeletons 22 in one place, making the structure of the filter structure 100 more compact.

[0064] Of course, in other embodiments, the multiple skeletons 22 can also be wound and unfolded in a manner corresponding to winding, or folded and unfolded in a manner corresponding to folding, etc., and there are no specific limitations.

[0065] Please continue reading. Figure 1 In some embodiments, the filter assembly 20 further includes a first elastic element 23, the other end of each frame 22 away from the base 10 is connected by the first elastic element 23, the first elastic element 23 is used to provide a force that causes the multiple frames 22 to have a tendency to move from unfolding to retracting.

[0066] By connecting the other end of each frame 22 away from the base 10 to the first elastic element 23, and using the first elastic element 23 to provide a force that causes the multiple frames 22 to have a tendency to move from unfolding to retracting, the filter assembly 20 can autonomously switch from the filtering state to the non-filtering state, thereby simplifying the state switching operation process of the filter assembly 20 and improving the ease of operation.

[0067] In other embodiments, the first elastic element 23 can also be used to provide a force that causes the multiple frames 22 to tend to move from retracting to unfolding. This allows the filter assembly 20 to autonomously switch from a non-filtering state to a filtering state, thereby simplifying the state switching process of the filter assembly 20.

[0068] In a specific embodiment of this application, the first elastic element 23 includes an elastic rope, which can be threaded through a through hole at the end of each frame 22 and connected to the frame 22, and the two ends of the elastic rope can be connected to form a closed structure.

[0069] In other embodiments, the first elastic element 23 may also include a tension spring or the like connected between two adjacent frames 22.

[0070] Please continue reading. Figures 1-3 In some embodiments, one end of the filter assembly 20 is rotatably connected to the base 10 to switch between a filtered state and a non-filtered state.

[0071] Rotation, compared to translation or other motion methods, occupies less space and is more conducive to achieving a compact filter structure 100.

[0072] Specifically, each frame 22 is rotatably connected to the base 10. More specifically, the first frame 22 may have a first pivot hole, and the base 10 may have a second pivot hole. A pin passes through the first pivot hole and the second pivot hole to rotatably connect the frame 22 and the base 10.

[0073] like Figure 4 As shown, more specifically, the frame 22 includes a first segment 221, a second segment 222, and an intermediate segment 223 connected between the first segment 221 and the second segment 222. The intermediate segment 223 is rotatably connected to the base 10. The filter element 21 is disposed between the first segments 221 of the two adjacent frames 22. The opening and closing mechanism 30 can move relative to the base 10 to drive the second segment 222 of the frame 22 to move, thereby switching the filter assembly 20 between the filtering state and the non-filtering state.

[0074] Preferably, the length of the first segment 221 is greater than the length of the second segment 222. The first segment 221, the middle segment 223, and the second segment 222 are connected to form a Z-shape.

[0075] Please continue reading. Figures 1-3 In some embodiments, the opening and closing mechanism 30 can move relative to the base 10 in a direction close to or away from the filter assembly 20 to drive the filter assembly 20 to switch between a filtering state and a non-filtering state.

[0076] The process of switching states by moving the filter component 20 closer to or further away is more direct and clear than other methods, thus improving ease of operation.

[0077] In other embodiments, the actuation mechanism 30 may also rotate, swing, or otherwise move relative to the base 10 to drive the filter assembly 20 to switch between a filtering state and a non-filtering state, which is not limited here.

[0078] Furthermore, the opening and closing mechanism 30 can slide relative to the base 10 to drive the filter assembly 20 to switch between a filtering state and a non-filtering state.

[0079] Specifically, one of the base 10 and the opening / closing mechanism 30 has a groove, and the other has a rail, with the groove and the rail sliding together.

[0080] In the embodiments of this application, in order to prevent the opening and closing structure 30 from detaching from the base 10, the opening and closing mechanism 30 is configured to be confined between the base 10 and the filter assembly 30 during the movement relative to the base 10.

[0081] In the embodiments of this application, the opening and closing mechanism 30 always remains in contact with the filter assembly 20 during the sliding process relative to the base 10, thereby improving the reliability of switching the state of the filter assembly 20.

[0082] In the embodiments of this application, when the filter assembly 20 is in a non-filtering state, one side of the opening and closing mechanism 30 cooperates with the base 10, and the other side cooperates with the filter assembly 20.

[0083] like Figure 5 As shown, specifically, the opening and closing mechanism 30 has a first limiting part 31 on the side facing away from the base 10. A portion of the filter assembly 20 is limited within the first limiting part 31, wherein the limiting direction of the first limiting part 31 is perpendicular to the movement direction of the opening and closing mechanism 30 relative to the base 10. By providing the first limiting part 31, the reliability of the filter assembly 20 in its current position when it is in a non-filtering state can be improved, thus facilitating the reliability of its subsequent movement from the non-filtering state to the filtering state. Specifically, the second segment 222 of the filter assembly 20 is limited within the first limiting part 31.

[0084] More specifically, the first limiting part 31 includes a first limiting groove, and a portion of the filter assembly 20 is limited within the first limiting groove.

[0085] Please continue reading. Figures 1-3In the embodiments of this application, when the filter assembly 20 is in the filtering state, the end of the opening and closing mechanism 30 abuts against the filter assembly 20, and one end of the filter assembly 20 is limited to the base 10.

[0086] like Figure 6 As shown, specifically, the base 10 has a second limiting part 11, and a portion of the filter assembly 20 is limited in the second limiting part 11, wherein the limiting direction of the second limiting part 11 is perpendicular to the movement direction of the opening and closing mechanism 30 relative to the base 10.

[0087] By providing the second limiting part 11, the reliability of the filter assembly 20 in its current position when it is in the filtering state can be improved, thereby facilitating the reliability of its subsequent movement from the filtering state to the non-filtering state. Specifically, the second segment 222 of the filter assembly 20 is limited by the second limiting part 11.

[0088] More specifically, the second limiting part 11 includes a second limiting groove, and a portion of the filter assembly 20 is limited within the second limiting groove.

[0089] It should also be noted that when a portion of the filter assembly 20 is confined to the first limiting portion 31, that portion should disengage from the second limiting portion 11; and when a portion of the filter assembly 20 is confined to the second limiting portion 11, that portion should disengage from the first limiting portion 31. This ensures the determinism of the transition between the two states of the filter assembly 20 and improves the reliability of its current state.

[0090] Specifically, in the embodiments of this application, the base 10 has a sliding through hole 12, the opening and closing mechanism 30 is slidably disposed in the sliding through hole 12, and one end of the filter assembly 20 extends into the sliding through hole 12 to cooperate with the opening and closing mechanism 30. In this way, the operation of the state switching action of the filter assembly 20 can be concentrated in the sliding through hole 12, which is beneficial to improving the compactness of the structure.

[0091] Please continue reading. Figure 5 and Figure 6 In some embodiments, the base 10 has a mating portion 13, and the opening and closing mechanism 30 includes an opening and closing body 32 and a locking portion 33, with the locking portion 33 disposed on the opening and closing body 32. The opening and closing body 32 is disposed on the base 10 and is movable relative to the base 10, so that the locking portion 33 switches between a locked position that engages with the mating portion 13 and an unlocked position that separates from the mating portion 13. When the locking portion 33 is in the locked position, the filter assembly 20 is in the filter filling state; when the locking portion 33 is in the unlocked position, the filter assembly 20 is in the non-filtering state.

[0092] By locking the locking part 33 in conjunction with the mating part 13, the filter assembly 20 can be kept in the filtering state. Conversely, by separating and unlocking the locking part 33 from the mating part 13, the filter assembly 20 can be kept in the non-filtering state. Therefore, the locking part 33 and the mating part 13 can improve the convenience and reliability of keeping the filter assembly 20 in the filtering state.

[0093] Specifically, in the embodiments of this application, one of the locking part 33 and the mating part 13 includes at least two opposing elastic buckles 131, and the other of the locking part 33 and the mating part 13 includes a fixed buckle 331. When the locking part 33 is in the locked position, the elastic buckle 131 and the fixed buckle 331 are engaged. When the locking part 33 is in the unlocked position, the elastic buckle 131 and the fixed buckle 331 are separated.

[0094] The locking method using the elastic buckle 131 and the fixed buckle 331 is simple and easy to operate.

[0095] Specifically, the locking part 33 includes a fixing buckle 331, and the mating part 13 includes at least two opposing elastic buckles 131. More specifically, the mating part 13 includes two opposing elastic buckles 131.

[0096] Please continue reading. Figures 1-3 In some embodiments, the filter assembly 100 further includes a second elastic member 40 disposed between the opening / closing body 32 and the base 10. The second elastic member 40 is used to provide a force that causes the locking part 33 to have a tendency to move from the locking position to the unlocking position.

[0097] In this way, the locking part 33 can be easily unlocked, and the locking part 33 can also be kept in the locked position that cooperates with the mating part 13.

[0098] Specifically, the second elastic element 40 includes a spring. In the embodiments of this application, the second elastic element 40 is sleeved on the mating portion 13. In this way, the second elastic element 40 can be positioned so that its compression and extension movements are smooth and reliable.

[0099] Please continue reading. Figures 1-3 as well as Figure 7 In some embodiments, the filter assembly 100 further includes an unlocking member 50, which can be moved relative to the opening and closing body 32 to cause the locking part 33 to move from the locking position to the unlocking position.

[0100] Users can directly operate the unlocking component 50 to complete the unlocking action, thereby switching the filter component 20 from the filtering state to the non-filtering state, which improves the convenience of operation.

[0101] Specifically, the movement direction of the unlocking component 50 relative to the opening / closing body 32 is parallel to the movement direction of the opening / closing body 32 relative to the base 10. This simplifies the structure of the opening / closing mechanism 30 and makes its movement relative to the base 10 simpler.

[0102] More specifically, when unlocking is required, the unlocking component 50 can move relative to the opening and closing body 32 so that a part of the structure extends between the locking part 33 and the mating part 13, thereby causing the elastic buckle 131 to undergo elastic deformation and separate from the fixed buckle 331, thus completing the unlocking action.

[0103] In the embodiments of this application, the direction of elastic deformation of the elastic buckle 131 is perpendicular to the direction of movement of the unlocking member 50 relative to the opening and closing body 32.

[0104] Based on the same inventive concept, this application also provides a fan 200, including the filter structure 100 in any of the above embodiments.

[0105] Specifically, the fan 200 includes a first shroud 210, which has a base 10, and a filter assembly 20 is disposed inside the first shroud 210.

[0106] In this way, the filter assembly 20 can be switched between the filtering state and the non-filtering state within the first shroud 210.

[0107] Typically, the first shroud 210 is the air inlet of the fan 200. Therefore, by placing the filter assembly 20 inside the first shroud 210, the filter assembly 20 can directly act on the air inlet, thereby achieving filtration and large-volume control of the air inlet.

[0108] In some embodiments, the fan 200 further includes a housing 220, a second shroud 230, and a fan blade 240. The housing 220 is configured as a through-hole structure with openings at both ends. The first shroud 210 and the second shroud 230 are respectively covered at the two openings. The fan blade 240 is disposed closer to the second shroud 230 than the first shroud 210.

[0109] In this way, the fan blade 240 can be separated from the filter assembly 20 without affecting the operation of the fan blade 240.

[0110] The filter structure 100 and fan 200 provided in this application embodiment have the following beneficial effects:

[0111] By using the opening and closing mechanism 30 to move relative to the base 10, the filter component 20 is switched between the filtering state and the non-filtering state. This allows the filter component 20 to be switched between the purification mode corresponding to the filtering state and the high air volume mode corresponding to the non-filtering state without having to be removed from the fan body. This simplifies the operation process.

[0112] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0113] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A filter structure (100), characterized in that, include: The base (10) has a mating part (13); A filter assembly (20), one end of which is mated with the base (10), the filter assembly (20) including a filter element (21); and An opening and closing mechanism (30) is provided on the base (10) and can move relative to the base (10) to drive the filter assembly (20) to switch between a filtering state and a non-filtering state; when the filter assembly (20) is in the filtering state, the filter element (21) unfolds, and when the filter assembly (20) is in the non-filtering state, the filter element (21) retracts. The opening and closing mechanism (30) includes an opening and closing body (32) and a locking part (33). The opening and closing body (32) includes an annular part, and the locking part (33) is disposed inside the annular part. The opening and closing body (32) is disposed on the base (10) and can move relative to the base (10) to switch between a locking position in which the locking part (33) engages with the mating part (13) and an unlocking position in which the mating part (13) is separated. The second elastic element (40) is sleeved on the mating part (13) and disposed between the opening and closing body (32) and the base (10). The second elastic element (40) is used to provide a force that causes the locking part (33) to have a tendency to move from the locking position to the unlocking position. When the locking part (33) is in the locked position, the end of the annular part abuts against the filter assembly (20) so that the filter assembly (20) is in the filtering state. When the locking part (33) is in the unlocked position, the filter assembly (20) is in the non-filtering state, and part of the filter assembly (20) is disposed between the second elastic member (40) and the annular part.

2. The filter structure (100) according to claim 1, characterized in that, One end of the filter assembly (20) is rotatably connected to the base (10) to switch between the filtering state and the non-filtering state.

3. The filter structure (100) according to claim 1, characterized in that, The filter assembly (20) also includes multiple skeletons (22), one end of each skeleton (22) is connected to the base (10), and the filter element (21) is disposed between two adjacent skeletons (22). When the filter assembly (20) is in the filtering state, the multiple skeletons (22) are unfolded; when the filter assembly (20) is in the non-filtering state, the multiple skeletons (22) are retracted.

4. The filter structure (100) according to claim 3, characterized in that, When the filter assembly (20) is in the filtering state, the multiple skeletons (22) open radially.

5. The filter structure (100) according to claim 3, characterized in that, The filter assembly (20) further includes a first elastic element (23), and the other end of each of the skeletons (22) away from the base (10) is connected by the first elastic element (23). The first elastic element (23) is used to provide a force that causes the multiple skeletons (22) to have a tendency to move from unfolding to retracting, or to provide a force that causes the multiple skeletons (22) to have a tendency to move from retracting to unfolding.

6. The filter structure (100) according to any one of claims 1 to 5, characterized in that, The opening and closing mechanism (30) can move relative to the base (10) in a direction close to or away from the filter assembly (20) to drive the filter assembly (20) to switch between the filtering state and the non-filtering state.

7. The filter structure (100) according to claim 6, characterized in that, The opening and closing mechanism (30) is in sliding engagement with the base (10).

8. The filter structure (100) according to claim 6, characterized in that, The base (10) has a sliding through hole (12), the opening and closing mechanism (30) is slidably disposed in the sliding through hole (12), and one end of the filter assembly (20) extends into the sliding through hole (12) and cooperates with the opening and closing mechanism (30).

9. The filter structure (100) according to claim 6, characterized in that, The opening and closing mechanism (30) has a first limiting part (31), and the base (10) has a second limiting part (11). When the filter assembly (20) is in a non-filtering state, a portion of the filter assembly (20) is limited to the first limiting part (31) and disengaged from the second limiting part (11). When the filter assembly (20) is in the filtering state, a portion of the filter assembly (20) is confined to the second limiting part (11) and disengaged from the first limiting part (31).

10. The filter structure (100) according to claim 1, characterized in that, The filter structure (100) further includes an unlocking member (50) which is operably movable relative to the opening and closing body (32) to cause the locking part (33) to move from the locking position to the unlocking position.

11. The filter structure (100) according to claim 10, characterized in that, The direction of movement of the unlocking component (50) relative to the opening and closing body (32) is parallel to the direction of movement of the opening and closing body (32) relative to the base (10).

12. The filter structure (100) according to claim 1, characterized in that, One of the locking part (33) and the mating part (13) includes at least two opposing elastic buckles (131), and the other of the locking part (33) and the mating part (13) includes a fixed buckle (331). When the locking part (33) is in the locked position, the elastic buckle (131) engages with the fixed buckle (331). When the locking part (33) is in the unlocked position, the elastic buckle (131) separates from the fixed buckle (331).

13. A fan (200), characterized in that, Includes the filter structure (100) as described in any one of claims 1 to 12.

14. The fan (200) according to claim 13, characterized in that, The fan (200) includes a first shroud (210) having the base (10), and the filter assembly (20) is disposed inside the first shroud (210).

15. The fan (200) according to claim 14, characterized in that, The fan (200) also includes a housing (220), a second shroud (230), and a fan blade (240). The housing (220) is constructed as a through-hole structure with openings at both ends. The first shroud (210) and the second shroud (230) are respectively covered at the two openings. The fan blade (240) is positioned closer to the second shroud (230) than the first shroud (210).

Images