Filtering device and air conditioning equipment

By designing a flip-up structure for the filter pressing component, the problem of inconvenient filter replacement was solved, enabling convenient disassembly and assembly of the filter, and improving the user experience and competitiveness of air conditioning equipment.

CN223992328UActive Publication Date: 2026-03-13XIAOMI TECH (WUHAN) CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The filters of existing air conditioning equipment are prone to performance problems due to dust accumulation after prolonged use, and current technology makes them difficult to replace easily, thus affecting air purification capabilities.

Method used

Design a filtration device that locks and unlocks the filter screen by flipping the filter screen pressing parts. Specifically, provide a filtration device that improves the ease of disassembly and assembly of the filter screen by making the filter screen device simple in structure and easy to operate.

Benefits of technology

It enables convenient installation and removal of the filter, improves user experience and product competitiveness, and simplifies the filter replacement process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a filtering device and air conditioning equipment. The filtering device comprises a frame body, a filter screen and a filter screen pressing piece. The frame body is provided with an accommodating cavity; the filter screen is detachably arranged in the accommodating cavity; the filter screen pressing part is arranged on the frame body in a turnover manner and is provided with a first position and a second position, and the filter screen pressing part is parallel to the filter screen and is pressed on the upper surface of the filter screen at the first position; and at the second position, the filter screen pressing piece and the filter screen form an angle so as to avoid a space for disassembling and assembling the filter screen. According to the technical scheme, locking and unlocking of the filter screen can be achieved through overturning of the filter screen pressing piece, the structure is simple, operation is convenient and fast, and the competitiveness of products can be improved.
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Description

Technical Field

[0001] This disclosure relates to the field of air purification technology, and in particular to a filtration device and an air conditioning equipment. Background Technology

[0002] As living standards continue to improve, air conditioning equipment with air purification functions is becoming increasingly popular. The filter is a key component of air conditioning equipment, enabling air purification. After prolonged use, dust accumulation on the filter surface can affect its air purification capabilities. Therefore, easier filter replacement helps enhance product competitiveness. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a filtration device and an air conditioning device.

[0004] According to a first aspect of the present disclosure, a filtering device is provided, comprising:

[0005] The frame is equipped with a receiving cavity;

[0006] A filter screen is detachably disposed within the receiving cavity;

[0007] The filter screen pressing component is rotatably mounted on the frame and has a first position and a second position, wherein:

[0008] In the first position, the filter screen pressing member is parallel to the filter screen and is pressed onto the upper surface of the filter screen;

[0009] In the second position, the filter pressing component is at an angle to the filter to avoid creating space for the filter to be installed or removed.

[0010] Optionally, the frame is provided with a slot, and the filter pressing component is provided with a buckle, the buckle being configured to engage with the slot when in the first position.

[0011] Optionally, the side wall of the frame is provided with an inwardly extending sidewall. At the first position, the end face of the filter screen pressing member and the end face of the sidewall are spaced apart. The buckle is provided on the end face of the filter screen pressing member and can be locked onto the inner side of the sidewall.

[0012] Optionally, the buckle is provided with guide ramps on both sides in the snapping direction.

[0013] Optionally, the filter pressing component is constructed in the shape of a strip, and the buckles are provided at both ends of the filter pressing component along its length.

[0014] Optionally, the filter pressing component includes a pressing part and a connecting part, the pressing part being used to press the filter screen, and the connecting part being rotatably connected to the frame via a rotating shaft.

[0015] Optionally, the frame is provided with a mounting groove with an opening facing the receiving cavity. The bottom of the mounting groove is provided with a limiting slope. The limiting slope is inclined from top to bottom away from the receiving cavity. The pressing part includes a strip-shaped pressing body and a baffle provided on one side of the pressing body in the length direction. The baffle is accommodated in the mounting groove and can cooperate with the limiting slope to limit the opening angle of the filter pressing part.

[0016] Optionally, the opening angle of the filter screen pressing component ranges from 35° to 50°.

[0017] Optionally, the filtration device further includes a first elastic element, which is connected to the filter pressing member and the frame respectively, and is configured to have an elastic force that maintains the filter pressing member in the second position.

[0018] Optionally, the first elastic element is a rubber ring.

[0019] Optionally, the filter screen is configured to be installed from the top surface of the frame, the filter screen pressing member is disposed on the side of the frame, and in the first position, the filter screen pressing member stops on the upper surface of the side edge of the filter screen.

[0020] Optionally, it also includes a lever disposed on the filter pressing member.

[0021] Optionally, the filter screen is provided with a handle for removal, and / or a second elastic member is provided between the bottom of the filter screen and the frame, the second elastic member being used to eject the filter screen from the receiving cavity after the filter screen pressing member releases the lock on the filter screen.

[0022] According to a second aspect of the present disclosure, an air conditioning device is provided, including the filtration device of any one of the above.

[0023] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: The filtration device provided by this disclosure includes a filter screen pressing member, which has a first position parallel to the filter screen and pressed against the upper surface of the filter screen, and a second position at an angle to the filter screen to avoid creating space for filter screen removal and installation. Specifically, when the air conditioning equipment is working normally, the filter screen pressing member is maintained in the first position. Because the filter screen pressing member is pressed against the upper surface of the filter screen, the filter screen cannot be removed. When it is necessary to remove the filter screen, the filter screen pressing member only needs to be flipped to the second position. At this time, the filter screen pressing member is tilted and creates space for filter screen removal and installation, allowing the user to remove the filter screen from the receiving cavity. That is, the filtration device provided by this disclosure can lock and unlock the filter screen by flipping the filter screen pressing member. It has a simple structure and is easy to operate, which helps to improve the competitiveness of the product.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] Figure 1 This is a schematic diagram of the structure of a filtration device according to an exemplary embodiment.

[0027] Figure 2 yes Figure 1 Exploded view of the structure of the filter device.

[0028] Figure 3 and Figure 4 This is a partial structural schematic diagram of a filtering device according to an exemplary embodiment, wherein, Figure 3 The filter is locked. Figure 4 The filter is now unlocked.

[0029] Figure 5 This is a schematic diagram of the structure of a filter screen pressing component according to an exemplary embodiment.

[0030] Figure 6 This is a partial cross-sectional schematic diagram of a filtering device in a filter screen locked state according to an exemplary embodiment.

[0031] Figure 7 This is a partial cross-sectional schematic diagram illustrating a filtering device in the filter unlocked state according to an exemplary embodiment.

[0032] Figure 8 This is a schematic diagram illustrating the rotatable connection between the filter press and the frame at the mounting slot position according to an exemplary embodiment.

[0033] Figure 9 This is a cross-sectional view showing the filter press and the frame engaged in a first position, according to an exemplary embodiment.

[0034] Figure 10 This is a partial cross-sectional view showing the location of a second elastic member between a filter and a lower cover, according to an exemplary embodiment.

[0035] Explanation of reference numerals in the attached figures

[0036] 1-Frame, 11-Upper cover, 111-Receiving cavity, 112-Mounting groove, 1121-Limiting slope, 113-Card slot, 114-Side guard, 12-Lower cover, 2-Filter screen, 3-Filter screen pressing part, 31-Crimping part, 311-Crimping body, 312-Baffle, 32-Connecting part, 321-Rotating shaft, 322-Rubber ring slot, 33-Snap fastener, 34-Pulley, 4-First elastic element, 5-Second elastic element. Detailed Implementation

[0037] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0038] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.

[0039] like Figures 1 to 10 As shown, this exemplary embodiment provides a filtration device that can be applied to air conditioning equipment with air purification functions. Air conditioning equipment includes, but is not limited to, air conditioners, ducted air conditioners, fresh air systems, and oxygen concentrators.

[0040] Specifically, the filtration device provided in this disclosure includes a frame 1, a filter screen 2, and a filter screen pressing member 3. The frame 1 is provided with a receiving cavity 111. The filter screen 2 may include, for example, a high-efficiency filter screen, and is detachably disposed within the receiving cavity 111. The filter screen pressing member 3 is flip-mounted on the frame 1 and has a first position and a second position. In the first position, the filter screen pressing member 3 is parallel to the filter screen 2 and is pressed against the upper surface of the filter screen 2; in the second position, the filter screen pressing member 3 is at an angle to the filter screen 2 to allow space for the filter screen 2 to be installed and removed.

[0041] It should be noted that "pressing" here refers to the fact that, in the first position, the projection of the filter pressing component 3 toward the filter 2 at least partially overlaps with the filter 2. Correspondingly, "avoiding space for the installation and removal of the filter 2" means that, in the second position, the projection of the filter pressing component 3 toward the filter 2 does not overlap with the filter 2. For example, the frame 1 is typically constructed as a rectangle. Figure 1 In the illustrated embodiment, the filter screen 2 is configured to be installed from the top surface of the frame 1, and the filter screen pressing member 3 is disposed on the side of the frame 1. In a first position, the filter screen pressing member 3 is pressed onto the upper surface of the side edge of the filter screen 2.

[0042] When the air conditioning equipment is working normally, such as Figure 3 As shown, the filter screen pressing component 3 flips to a first position parallel to the filter screen 2 and presses against the upper surface of the filter screen 2, locking the filter screen 2 in place and preventing it from being removed. When it is necessary to remove the filter screen 2, as... Figure 4 As shown, the filter screen pressing component 3 can be flipped to the second position by means of manual means, for example. At this time, the filter screen pressing component 3 is at an angle to the filter screen 2, and the projected length of the filter screen pressing component 3 in the direction of the filter screen 2 becomes shorter, thereby avoiding the space for the filter screen 2 to be disassembled and installed.

[0043] Filter 2 is a component that requires frequent cleaning or replacement, and its ease of disassembly and assembly is directly related to the user experience. The filtration device provided in this disclosure allows for locking and unlocking of the filter by flipping the filter pressing parts. Its simple structure and convenient operation enhance the product's competitiveness.

[0044] To ensure the reliability of locking the filter 2, i.e., that the filter 2 can be reliably accommodated in the receiving cavity 111 without external force provided by the user, in some embodiments, the frame 1 may be provided with a slot 113, and the filter pressing component 3 may be provided with a buckle 33. The buckle 33 is configured to engage with the slot 113 in the first position. When it is necessary to remove the filter 2, the buckle 33 can be manually disengaged from the slot 113. This snap-fit ​​engagement between the filter pressing component 3 and the frame 1 is simple in structure, easy to operate, and provides a relatively reliable lock on the filter 2.

[0045] This disclosure is not intended to limit the specific form of the snap-fit ​​engagement between the filter press-fit member 3 and the frame 1. In some embodiments, a groove 113 may be formed using the gap between the filter press-fit member 3 and the frame 1. For example, refer to... Figure 2The frame 1 may include a lower cover 12 and an upper cover 11 that is detachably fitted onto the top of the lower cover 12. In some filtration devices, in addition to the filter screen 2, electronic devices such as sensors for detecting air quality may also be included. To facilitate the installation and maintenance of these electronic devices, the frame 1 may be constructed as a split structure, wherein the upper cover 11 can be fitted onto the lower cover 12 and form a housing for the electronic devices on the side near the receiving cavity 111.

[0046] Also refer to Figure 9 The upper cover 11 may be provided with an inwardly extending sidewall 114. In the first position, the end face of the filter screen pressing member 3 and the end face of the sidewall 114 are spaced apart. The buckle 33 is provided on the end face of the filter screen pressing member 3 and can be locked onto the inner side of the sidewall 114. The side wall of the frame 1 is elastic. When the filter screen pressing member 3 is flipped from the second position to the first position, the buckle 33 can be squeezed into the gap between the end face of the filter screen pressing member 3 and the end face of the sidewall 114, causing the side wall of the frame 1 to deform outward. When the buckle 33 finally reaches the first position, the buckle 33 has passed through the gap. Under the action of the elastic restoring force, the buckle 33 is locked onto the inner side of the sidewall 114. To ensure reliable locking of the buckle 33, the length of the buckle 33 and the sidewall 114 locking engagement can be greater than or equal to 0.3 mm.

[0047] Optionally, to facilitate the engagement and disengagement of the latch 33, in some embodiments, the latch 33 is provided with guide ramps on both sides in the engagement direction. This allows the user to engage and disengage the filter screen pressing component 3 without exerting excessive force, and avoids damage to the device due to excessive force.

[0048] In addition, the filter pressing component 3 can be constructed as a strip to increase the pressing area, and both ends of the filter pressing component 3 along the length direction are provided with buckles 33, which helps to improve the reliability of the filter pressing component 3 in locking and further improves the reliability of locking the filter 2.

[0049] To enable the filter screen pressing component 3 to be flipped on the frame 1, in some embodiments, such as Figures 5 to 7 As shown, the filter screen pressing component 3 includes a pressing part 31 and a connecting part 32. The pressing part 31 is used to press the filter screen 2. For example, the pressing part 31 can be constructed as a strip. The connecting part 32 is rotatably connected to the frame 1 through a rotating shaft 321.

[0050] The frame 1 may be provided with a mounting groove 112 with an opening facing the receiving cavity 111. The mounting groove 112 may be provided, for example, on the upper cover 11. Figure 6 As shown, the bottom of the groove 112 is provided with a limiting inclined surface 1121, which slopes from top to bottom away from the receiving cavity 111. Figure 5 As shown, the pressing part 31 includes a strip-shaped pressing body 311 and a baffle 312 disposed on one side of the pressing body 311 along its length. The pressing body 311 is used to press the filter screen 2. The baffle 312 is accommodated in the mounting groove 112 and can cooperate with the limiting inclined surface 1121 to limit the opening angle of the filter screen pressing part 3, thereby preventing the filter screen pressing part 3 from opening at too large an angle. Optionally, the opening angle of the filter screen pressing part 3 can be in the range of 35° to 50°.

[0051] Considering the 90° opening angle of the filter screen pressing component 3, if its position is not fixed, the filter screen pressing component 3 is prone to flipping back to its first position under its own weight during the removal of the filter screen 2, and constantly holding it by hand is inconvenient. In some embodiments, such as Figure 6 and Figure 7 As shown, the filtration device may further include a first elastic element 4, which is connected to the filter screen pressing member 3 and the frame 1 respectively, and is configured to have an elastic force that holds the filter screen pressing member 3 in a second position. Figure 6 As shown, the filter screen pressing component 3 is in the first position, at which time the first elastic element 4 is in a stretched state. This elastic force can be overcome by the snap-fit ​​between the filter screen pressing component 3 and the frame 1, thereby maintaining the filter screen pressing component 3 in the first position. When the filter screen pressing component 3 is flipped to the second position, the first elastic element 4, under the action of elastic restoring force, generates a pulling force on the filter screen pressing component 3, thereby maintaining the filter screen pressing component 3 in the second position. Optionally, the first elastic element 4 can be a rubber ring, such as... Figure 5 and Figure 8 As shown, a rubber ring groove 322 may be provided on the connecting part 32. The rubber ring groove 322 may be, for example, a semi-annular elastic groove with a notch.

[0052] like Figure 4 As shown, the filter screen pressing component 3 may be provided with a lever 34 to facilitate flipping the filter screen pressing component 3 from the first position to the second position. Furthermore, the filter screen 2 may be provided with a handle for removal; the handle may be, for example, a flexible strip, and / or as... Figure 10 As shown, a second elastic element 5 can be provided between the bottom of the filter screen 2 and the frame 1. The second elastic element 5 can be a spring, used to pop the filter screen 2 out of the receiving cavity 111 after the filter screen pressing member 3 releases the lock on the filter screen 2. For example, when the filter screen pressing member 3 is in the first position and the filter screen 2 is locked, the filter screen 2 will not pop out even under the action of the second elastic element 5. However, when the filter screen pressing member 3 is in the second position and the filter screen 2 is unlocked, depending on the different settings of the second elastic element 5, for example, at least the filter screen 2 on the side closest to the filter screen pressing member 3 can be popped out, and then the filter screen 2 can be completely removed by pulling the handle.

[0053] According to a second aspect of the present disclosure, an air conditioning device is also provided, including the filtration device of any of the above-described embodiments, and having all of its beneficial effects, which will not be elaborated further here. The air conditioning device includes, but is not limited to, air conditioners, ducted air conditioners, fresh air systems, and oxygen concentrators.

[0054] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0055] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0056] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure 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, an electrical connection, or a connection that allows communication between them; 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 herein based on the specific circumstances.

[0057] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used to indicate that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are arranged between the surface and the component, element, or material layer. However, the term "above" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, for example, in direct contact with the surface.

[0058] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. 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 indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0059] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0060] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0061] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0062] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0063] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A filter device, characterized in that The filter device comprises: a frame provided with a receiving cavity; a filter screen detachably arranged in the receiving cavity; a filter screen pressing member reversibly arranged on the frame and having a first position and a second position, wherein: in the first position, the filter screen pressing member is parallel to the filter screen and is pressed on the upper surface of the filter screen; in the second position, the filter screen pressing member is at an angle with the filter screen to leave a space for the filter screen to be detached.

2. The filter device of claim 1, wherein, The frame is provided with a clamping groove, and the filter screen pressing member is provided with a clasp configured to be clamped into the clamping groove in the first position.

3. The filter device of claim 2, wherein, The side wall of the frame is provided with an inwardly transversely extending stopper, in the first position, the end surface of the filter screen pressing member is spaced apart from the end surface of the stopper, the clasp is arranged on the end surface of the filter screen pressing member, and the clasp can be clamped on the inner surface of the stopper.

4. The filter device of claim 3, wherein, The clasp is provided with a guide inclined surface on both sides of the clamping direction.

5. The filter device of claim 3, wherein, The filter screen pressing member is configured as a strip, and the filter screen pressing member is provided with the clasp on both ends in the length direction.

6. The filter device of claim 1, wherein, The filter screen pressing member comprises a pressing part for pressing the filter screen and a connecting part rotatably connected with the frame through a rotating shaft.

7. The filter device of claim 6, wherein, The frame is provided with a mounting groove with an opening facing the receiving cavity, the groove bottom of the mounting groove is provided with a limiting inclined surface inclined downward away from the receiving cavity, the pressing part comprises a strip-shaped pressing body and a baffle arranged on one side of the length direction of the pressing body, the baffle is accommodated in the mounting groove and can cooperate with the limiting inclined surface to limit the opening angle of the filter screen pressing member.

8. The filter device of claim 1, wherein, The opening angle of the filter screen pressing member ranges from 35° to 50°.

9. The filter device of claim 1, wherein, The filter device further comprises a first elastic member connected with the filter screen pressing member and the frame respectively and configured to have an elastic force to maintain the filter screen pressing member in the second position.

10. The filter device of claim 9, wherein, The first elastic member is a rubber ring.

11. The filter device of claim 1, wherein, The filter screen is configured to be mounted from the top surface of the frame, the filter screen pressing member is arranged on the side of the frame, and in the first position, the filter screen pressing member is stopped on the upper surface of the side edge of the filter screen.

12. The filter device of claim 1, wherein, A tab is further arranged on the filter screen pressing member.

13. The filter device of claim 1, wherein, The filter screen is provided with a handle for taking out, and / or a second elastic member is arranged between the bottom of the filter screen and the frame, the second elastic member is used to pop the filter screen out of the receiving cavity after the filter screen pressing member releases the locking of the filter screen.

14. An air conditioning apparatus characterized by comprising: The filter device comprises any one of claims 1-13. The filter device comprises any one of claims 1-13.