Filter screen assembly and air conditioner

Abstract

The utility model provides a filter screen assembly and an air conditioner, and relates to the technical field of air conditioners. The filter screen assembly comprises a first filter screen, a second filter screen and a third filter screen. The first filter screen, the second filter screen and the third filter screen are all made of hard materials. The second filter screen is provided with a first end and a second end in the length direction, the first filter screen is hinged to the first end, and the third filter screen is hinged to the second end. Sliding shafts are arranged on the two sides, in the width direction, of the first filter screen in an outward protruding mode and used for being matched with sliding way grooves formed in the middle frame so that the first filter screen can rotate relative to the second filter screen in the filter screen assembly disassembling and assembling process. Sliding parts are arranged on the two sides of the second filter screen in the width direction in an outward protruding mode and used for being matched with sliding way grooves formed in the middle frame so that the second filter screen can rotate relative to the third filter screen in the filter screen assembly disassembling and assembling process. Clamping connection can be avoided, and mounting of the filter screen assembly is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a filter assembly and an air conditioner. Background Art

[0002] Existing indoor units generally use an air duct structure with air inlet at the top and air outlet at the bottom. The filter is installed in the slide groove of the middle frame, semi-enclosing the outer edge of the heat exchanger to filter the air passing through the heat exchanger.

[0003] In the prior art, in order to allow the filter to be inserted from the front side of the middle frame to the top and cover the air inlet grille, the filter frame is generally made of soft plastic. The side walls of the slide groove abut against the filter frame to deform the filter frame and be inserted from the slide groove on the front side of the middle frame under the air inlet grille on the top of the middle frame.

[0004] However, since the filter frame abuts against the slide groove, the filter will be stuck in the slide groove, resulting in poor sliding of the filter and inconvenience in assembly and disassembly of the filter. Utility Model Content

[0005] The problem solved by the utility model is that the filter screen and the slideway groove are stuck during the disassembly and assembly process, which causes the filter screen to slide poorly.

[0006] In order to solve the above problems, the utility model provides a filter assembly and an air conditioner, which can avoid deformation and clamping, and facilitate the installation of the filter assembly.

[0007] In a first aspect, the present invention provides a filter assembly comprising a first filter, a second filter, and a third filter;

[0008] The first filter screen, the second filter screen and the third filter screen are all made of hard materials;

[0009] The second filter screen has a first end and a second end in the length direction, the first filter screen is hinged to the first end, and the third filter screen is hinged to the second end;

[0010] Sliding shafts are protruding outward on both sides of the first filter in the width direction, and the sliding shafts are used to cooperate with the slide grooves provided in the middle frame to rotate the first filter relative to the second filter during the disassembly and assembly of the filter assembly;

[0011] Both sides of the second filter screen in the width direction are provided with sliding parts protruding outward, and the sliding parts are used to cooperate with the slide grooves provided in the middle frame to rotate the second filter screen relative to the third filter screen during the disassembly and assembly of the filter screen assembly.

[0012] The present application provides a filter assembly comprising a first filter, a second filter and a third filter which are hinged in sequence, and which are made of a hard material that is not easily deformed, and a sliding shaft is provided on both sides of the first filter, and a sliding portion is provided on both sides of the second filter. In this way, when installing the filter assembly, only the sliding shaft and the sliding portion are inserted into the slide groove of the middle frame, and the sliding shaft and the sliding portion cooperate with the slide groove to rotate the first filter relative to the second filter and the second filter relative to the third filter, so that the first filter can slide from the slide groove to the top side of the middle frame, and the second filter can slide from the slide groove to the transition point between the top side and the front side of the middle frame, and the third filter is installed on the front side of the middle frame, avoiding the problem of the filter assembly being stuck with the slide groove, so that the filter assembly can slide smoothly along the slide groove to facilitate the disassembly and assembly of the filter assembly.

[0013] In an optional embodiment, the first end and the second end are provided with sliding portions on both sides in the width direction;

[0014] A rotating portion is provided at one end of the length direction of the first filter screen and the third filter screen;

[0015] The rotating part provided on the first filter screen is hingedly engaged with the sliding part provided on the first end;

[0016] The rotating part arranged on the third filter screen is hingedly matched with the sliding part arranged on the second end.

[0017] The present application provides sliding portions on both sides of the first and second ends in the width direction, and provides rotating portions on one end of the first and third filter screens in the length direction, so that the rotating portions and sliding portions are hinged, thereby facilitating relative rotation between the three. The sliding portions provided on both sides of the first end cooperate with the sliding shaft to support both ends of the first filter screen, thereby securing the first filter screen to the top side of the middle frame. Sliding portions are provided on both sides of the first and second ends in the width direction, and the four sliding portions can be used to support the second filter screen through the slide groove, so that the second filter screen can be installed in an inclined state at the transition between the top and front sides of the middle frame.

[0018] In an optional embodiment, both ends of the rotating portion provided on the first filter screen extend out of both sides in the width direction of the first filter screen;

[0019] Both ends of the rotating portion provided on the third filter screen extend out from both sides in the width direction of the third filter screen;

[0020] All sliding parts are provided with shaft holes;

[0021] The rotating parts provided on both sides of the first filter are installed in the rotating shaft holes of the two sliding parts of the first end in a one-to-one correspondence;

[0022] The rotating parts arranged on both sides of the third filter are installed in the rotating shaft holes of the two sliding parts of the second end in a one-to-one correspondence.

[0023] The above structure allows the first and third filters to be hinged to the second filter, which can also reduce the number of contact points between the filter assembly and the slideway, making it easier to slide the filter assembly.

[0024] In an optional embodiment, the side walls of all the sliding parts are provided with mounting notches communicating with the rotating shaft holes;

[0025] The rotating part is installed in the rotating shaft hole through the installation notch.

[0026] The present application provides a mounting notch on the side wall of the rotating part that is connected to the rotating shaft hole, so that the rotating part can be clipped into the rotating shaft hole through the mounting notch, which is more convenient for assembly.

[0027] In an optional embodiment, the mounting notch is provided on one side corresponding to the thickness direction of the second filter screen;

[0028] All the sliding parts partially protrude from the side wall of the second filter screen in the width direction of the second filter screen;

[0029] The first filter screen and the second filter screen are provided at one end of the rotating part, and are provided with avoidance grooves on both sides in the width direction;

[0030] The avoidance groove is used for avoiding the sliding part when the first filter screen and the third filter screen rotate relative to the second filter screen.

[0031] The present application provides for easy assembly by arranging the mounting notch on one side of the second filter in the thickness direction. Avoidance grooves are provided on the first and second filter screens, allowing the sliding portion to avoid rotation when the first filter screen rotates relative to the second filter screen, and when the second filter screen rotates relative to the third filter screen.

[0032] In an optional embodiment, the first filter screen and the third filter screen are both provided with a clamping portion, and the second filter screen is provided with a matching portion;

[0033] When the first filter screen, the second filter screen and the third filter screen are in the same plane, the clamping portion is clamped with the matching portion.

[0034] The present application provides a snap-fitting portion on the first filter and the second filter, and a matching portion on the second filter. In this way, when installing the filter assembly, the snap-fitting portion can be first connected with the matching portion to fix the first filter, the second filter and the third filter on the same plane to avoid rotation relative to each other. This makes it convenient for users to install the filter assembly into the slide groove.

[0035] In an optional embodiment, the matching portion is a snap-fitting groove, all the sliding portions are provided with a snap-fitting groove, and the snap-fitting portions are provided on the first filter screen and the second filter screen corresponding to the snap-fitting groove;

[0036] When the first filter screen, the second filter screen and the third filter screen are in the same plane, the clamping portion is clamped in the clamping groove.

[0037] The present application sets the matching part as a snap-in groove, so that the matching part is set up and snap-in is more convenient.

[0038] In an optional embodiment, both ends of the rotating portion provided on the first filter screen extend out of both sides in the width direction of the first filter screen;

[0039] Both ends of the rotating portion provided on the third filter screen extend out from both sides in the width direction of the third filter screen;

[0040] The first filter screen and the second filter screen are provided at one end of the rotating part, and are provided with an avoidance groove on both sides in the width direction, and the clamping part is protruded from the side wall of the avoidance groove;

[0041] All sliding parts are provided with a shaft hole, and the outer periphery of all sliding parts are provided with a clamping groove;

[0042] The sliding portion extends into the avoidance groove, and the rotating portion is installed in the rotating shaft hole in a one-to-one correspondence.

[0043] The present application arranges the clamping portion protruding from the side wall of the avoidance groove and arranges the clamping groove on the outer periphery of the sliding portion. This makes the structure compact and facilitates the clamping of the clamping portion and the clamping groove.

[0044] In an optional embodiment, the sliding shafts are arranged on both sides of the first filter away from the first end.

[0045] The present application arranges the sliding shaft on both sides of the end portion, which makes it convenient for the user to insert the sliding shaft into the slide groove during installation.

[0046] In a second aspect, the present invention provides an air conditioner, comprising a middle frame and a filter assembly according to any one of the aforementioned embodiments, wherein the middle frame is provided with a slide groove, the slide groove being bent and extending from the front side of the middle frame to the top side of the middle frame;

[0047] The sliding shaft is inserted into the slide groove, and the first filter is installed on the top side of the middle frame;

[0048] The sliding part is inserted into the slide groove, and the second filter is installed obliquely at the transition between the top side and the front side of the middle frame;

[0049] The third filter is installed on the front side of the middle frame.

[0050] The air conditioner provided by the present application is configured by setting the filter assembly as a first filter, a second filter, and a third filter that are hinged in sequence, and making them made of a hard material that is not easily deformed, and setting sliding shafts on both sides of the first filter, and setting sliding parts on both sides of the second filter. In this way, when installing the filter assembly, only the sliding shaft and the sliding part are inserted into the slide groove of the middle frame. The sliding shaft and the sliding part cooperate with the slide groove to make the first filter rotate relative to the second filter and the second filter rotate relative to the third filter, so that the first filter can slide from the slide groove to the top side of the middle frame, and the second filter can slide from the slide groove to the transition between the top side and the front side of the middle frame. The third filter is installed on the front side of the middle frame, avoiding the problem of the filter assembly being stuck with the slide groove, so that the filter assembly can slide smoothly along the slide groove to facilitate the disassembly and assembly of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic structural diagram of an air conditioner provided in an embodiment of the present utility model;

[0052] Figure 2 A schematic diagram of the structure of the filter assembly provided in an embodiment of the present utility model installed on the middle frame;

[0053] Figure 3 for Figure 2 A in the middle is an enlarged schematic diagram;

[0054] Figure 4 A schematic cross-sectional view of the slideway groove of an air conditioner provided by an embodiment of the present utility model;

[0055] Figure 5 for Figure 4 The enlarged schematic diagram of point D in the middle;

[0056] Figure 6 for Figure 4 The enlarged schematic diagram at E in the middle;

[0057] Figure 7 A schematic structural diagram of a filter assembly provided in an embodiment of the present invention;

[0058] Figure 8 A schematic structural diagram of the filter assembly provided by an embodiment of the present invention from another perspective;

[0059] Figure 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0060] Figure 10 for Figure 8 Enlarged schematic diagram at point C in the middle.

[0061] Icon: 100-filter assembly; 110-first filter; 111-sliding shaft; 121-rotating part; 123-avoidance groove; 125-clamping part; 130-second filter; 131-first end; 133-second end; 135-sliding part; 137-rotating shaft hole; 139-clamping groove; 141-installation notch; 150-third filter; 300-air conditioner; 310-middle frame; 311-installation opening; 313-first slide; 315-second slide; 317-slide groove; 319-horizontal section; 321-arc-shaped transition section; 323-vertical section; 330-face frame; 331-installation opening. DETAILED DESCRIPTION

[0062] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0063] Please refer to Figure 1 and Figure 2 This embodiment provides an air conditioner 300, which includes a middle frame 310 and a filter assembly 100. The middle frame 310 is provided with a slide groove 317. The slide groove 317 bends and extends from the front side of the middle frame 310 to the top side of the middle frame 310. The filter assembly 100 is inserted into the slide groove 317 through an opening at the bottom of the slide groove 317.

[0064] Please refer to Figures 1 to 6 The middle frame 310 generally comprises a top plate, end plates, a bottom plate, and a front plate. The top plate and bottom plate are arranged opposite each other. There are two end plates, one on each side of the top and bottom plates in the longitudinal direction, and both are connected to the top and bottom plates. The front plate is located at the front side and is connected to the bottom plate, the top plate, and the end plates at both ends. The middle frame 310 is integrally injection molded. The top plate is provided with an air inlet. The front plate is provided with a mounting opening 311. A first slide 313 and a second slide 315 are provided on opposite sides of the mounting opening 311. The first slide 313 and the second slide 315 extend from the bottom of the front side of the middle frame 310 to the top rear side of the middle frame 310. A slide groove 317 is provided on the opposite side of the first slide 313 and the second slide 315. The slide groove 317 includes a horizontal section 319, an arcuate transition section 321, and a vertical section 323. The horizontal section 319 is formed on the underside of the top plate and is generally parallel to the top plate. The vertical section 323 is arranged on the inner side of the panel and is generally parallel to the panel. The arc-shaped transition section 321 is correspondingly arranged at the transition between the inner top plate of the middle frame 310 and the panel.

[0065] Please refer to Figures 1 to 10In this embodiment, the filter assembly 100 includes a first filter 110, a second filter 130, and a third filter 150. The first filter 110, the second filter 130, and the third filter 150 are all made of a hard material. The second filter 130 has a first end 131 and a second end 133 in its longitudinal direction. The first filter 110 is hinged to the first end 131, and the third filter 150 is hinged to the second end 133. Sliding shafts 111 protrude outwardly from both sides of the first filter 110 in the width direction. The sliding shafts 111 engage with the slide grooves 317 to allow the first filter 110 to rotate relative to the second filter 130 during assembly and disassembly of the filter assembly 100. Sliding portions 135 protrude outward from both sides of the second filter 130 in the width direction. The sliding portions 135 engage with the slide grooves 317 provided in the middle frame 310 to allow the second filter 130 to rotate relative to the third filter 150 during assembly and disassembly of the filter assembly 100. The filter assembly 100 is installed in the middle frame 310 with the first filter 110 mounted in the horizontal section 319 of the slideway 317, located below the top plate of the middle frame 310. The sliding shaft 111 is inserted into the slideway 317 to support the first filter 110. The second filter 130 is positioned at an angle at the transition between the top plate and the front plate of the middle frame 310. The sliding portion 135 is inserted into the slideway 317 to support the second filter 130. The third filter 150 is covered by the mounting opening 311 on the panel of the middle frame 310.

[0066] When installing the filter assembly 100, first install the sliding shafts 111 protruding from either side of the first filter 110 through the openings at the bottom of the vertical section 323 into the corresponding slide grooves 317 of the first and second slides 313 and 315. Then, push the filter assembly 100 inward until the sliding portions 135 provided on either side of the second filter 130 are positioned corresponding to the openings in the vertical section 323. Then, install the sliding portions 135 through the openings at the bottom of the vertical section 323 into the corresponding slide grooves 317 of the first and second slides 313 and 315. Finally, push the filter assembly 100 inward. During this inward push, the slide grooves 317 guide the sliding shafts 111 and sliding portions 135, allowing the first filter 110 to rotate relative to the second filter 130, and the second filter 130 to rotate relative to the third filter 150. This allows the first, second, and third filters 110, 130, and 150 to be installed in corresponding positions on the middle frame 310.

[0067] In this embodiment, the filter assembly 100 is configured as a first filter 110, a second filter 130 and a third filter 150 which are hinged in sequence, and are made of a hard material that is not easily deformed, and sliding shafts 111 are set on both sides of the first filter 110, and sliding parts 135 are set on both sides of the second filter 130. In this way, when installing the filter assembly 100, only the sliding shaft 111 and the sliding part 135 are inserted into the slide groove 317 of the middle frame 310. The sliding shaft 111 and the sliding part 135 cooperate with the slide groove 317 to make the first filter 110 rotate relative to the second filter 130 and the second filter 130 rotate relative to the third filter 150, so that the first filter 110 can slide from the slide groove 317 to the top side of the middle frame 310, and the second filter 130 can slide from the slide groove 317 to the transition between the top side and the front side of the middle frame 310, and the third filter 150 is installed on the front side of the middle frame 310, avoiding the problem of the filter assembly 100 being stuck with the slide groove 317, so that the filter assembly 100 can slide smoothly along the slide groove 317, so as to facilitate the disassembly and assembly of the filter assembly 100.

[0068] Typically, the first filter 110, the second filter 130, and the third filter 150 each comprise a frame and filter screens. The filter screens are mounted to one side of the frame by bonding or other means, and the frame supports the filter screens. The sliding portion 135 and the sliding shaft 111 are both mounted on the frame, which is made of a hard material, such as hard plastic. This prevents deformation of the frame during installation of the filter assembly 100, thus preventing jamming.

[0069] It is noteworthy that the first filter screen 110, the second filter screen 130, and the third filter screen 150 of this embodiment are identical in width, and their widths are equal to or slightly smaller than the spacing between the first slideway 313 and the second slideway 315. Only the sliding shaft 111 and the sliding portion 135 are inserted into and slide along the slideway groove 317. Both sides of the first filter screen 110, the second filter screen 130, and the third filter screen 150 in the width direction are not inserted into the slideway groove 317.

[0070] Please refer to Figures 1 to 10 In this embodiment, the sliding shafts 111 are disposed on both sides of the first filter screen 110 away from the first end 131. That is, the slide shafts are disposed on both sides of the top end of the first filter screen 110. This arrangement of the sliding shafts 111 on both sides of the end facilitates the user's insertion of the sliding shafts 111 into the slide grooves 317 during installation, and facilitates the cooperation between the sliding shafts 111 and the slide grooves 317 to better guide the first filter screen 110, allowing the first filter screen 110 to rotate relative to the second filter screen 130.

[0071] In this embodiment, sliding portions 135 are provided on both sides of the first end 131 and the second end 133 in the width direction. A rotating portion 121 is provided at one end in the length direction of each of the first filter screen 110 and the third filter screen 150. The rotating portion 121 provided on the first filter screen 110 is hingedly engaged with the sliding portion 135 provided on the first end 131. The rotating portion 121 provided on the third filter screen 150 is hingedly engaged with the sliding portion 135 provided on the second end 133.

[0072] In this embodiment, sliding portions 135 are provided on both sides of the first end 131 and the second end 133 in the width direction, while rotating portions 121 are provided on one end of the first filter screen 110 and the third filter screen 150 in the length direction. The rotating portions 121 and sliding portions 135 are hingedly connected, facilitating relative rotation between the three. The sliding portions 135 provided on both sides of the first end 131 cooperate with the sliding shaft 111 to support both ends of the first filter screen 110, thereby securing the first filter screen 110 to the top side of the middle frame 310. Furthermore, the sliding portions 135 provided therein cooperate with the slideway groove 317 to guide the second filter screen 130, allowing the second filter screen 130 to extend and rotate in a predetermined direction relative to the third filter screen 150. Sliding parts 135 are provided on both sides of the first end 131 and the second end 133 in the width direction. The four sliding parts 135 can be used to support the second filter 130 through the slide groove 317, so that the second filter 130 can be installed in an inclined state at the transition between the top side and the front side of the middle frame 310.

[0073] Please refer to Figures 1 to 10 In this embodiment, both ends of the rotating portion 121 provided on the first filter screen 110 extend out of both sides of the width direction of the first filter screen 110. Both ends of the rotating portion 121 provided on the third filter screen 150 extend out of both sides of the width direction of the third filter screen 150. All sliding portions 135 are provided with a rotation shaft hole 137. The rotating portions 121 provided on both sides of the first filter screen 110 are installed in a one-to-one correspondence within the rotation shaft holes 137 of the two sliding portions 135 at the first end 131. The rotating portions 121 provided on both sides of the third filter screen 150 are installed in a one-to-one correspondence within the rotation shaft holes 137 of the two sliding portions 135 at the second end 133.

[0074] In this embodiment, the first filter 110 and the third filter 150 can be conveniently hinged to the second filter 130 through the above-mentioned hinged connection. This arrangement can also reduce the contact points between the filter assembly 100 and the slide groove 317, reduce friction resistance, and thus facilitate the sliding installation and removal of the filter assembly 100.

[0075] In this embodiment, the sidewalls of all the sliding parts 135 are provided with mounting notches 141 communicating with the shaft holes 137 . The rotating part 121 is mounted in the shaft holes 137 via the mounting notches 141 .

[0076] In this embodiment, a mounting notch 141 communicating with the shaft hole 137 is provided on the side wall of the rotating portion 121 , so that the rotating portion 121 can be snapped into the shaft hole 137 through the mounting notch 141 , making assembly more convenient.

[0077] Furthermore, guide surfaces are provided on both sides of the installation notch 141. When the rotating portion 121 is installed by pressing the conversion notch, the guide surfaces are squeezed and deformed to the sides, thereby allowing the rotating portion 121 to be easily installed in the shaft hole 137. The circular angle corresponding to the installation notch is less than 180 degrees, and can be selected to be 120 degrees. This facilitates the installation of the rotating portion 121 through the installation opening 311 and into the shaft hole 137, and also prevents the rotating portion 121 from falling out of the installation notch 141.

[0078] Please refer to Figures 1 to 10 In this embodiment, the mounting notch 141 is provided on one side of the second filter screen 130 in the thickness direction. All sliding portions 135 partially protrude from the sidewall of the second filter screen 130 in the width direction of the second filter screen 130, thereby enhancing the connection strength of the sliding portions 135. The first filter screen 110 and the second filter screen 130 are provided with one end of the rotating portion 121, and are provided with an escape groove 123 on both sides in the width direction. The escape groove 123 is used to avoid the sliding portion 135 when the first filter screen 110 and the third filter screen 150 rotate relative to the second filter screen 130.

[0079] This embodiment facilitates assembly by arranging the mounting notch 141 on one side of the second filter screen 130 in the thickness direction. Furthermore, a clearance groove 123 is provided on the first filter screen 110 and the second filter screen 130. When the first filter screen 110 rotates relative to the second filter screen 130, and when the second filter screen 130 rotates relative to the third filter screen 150, the clearance groove 123 allows the sliding portion 135 to avoid rotation.

[0080] It should be noted that the sliding shaft 111, the rotating portion 121 and the first filter 110 are integrally formed by injection molding. The sliding portion 135 and the second filter 130 are integrally formed by injection molding. The rotating portion 121 provided on the third filter 150 and the third filter 150 are integrally formed by injection molding.

[0081] Please refer to Figures 1 to 10 In this embodiment, the first filter screen 110 and the third filter screen 150 are both provided with a clamping portion 125, and the second filter screen 130 is provided with a matching portion. When the first filter screen 110, the second filter screen 130 and the third filter screen 150 are in the same plane, the clamping portion 125 is clamped with the matching portion.

[0082] Since the first filter 110, the second filter 130 and the third filter 150 of this embodiment are hinged in sequence, during installation, the first filter 110 and the second filter 130 at the top will be folded down under the action of gravity, making it inconvenient to install the filter assembly 100. In this embodiment, a snap-fit portion 125 is provided on the first filter 110 and the second filter 130, and a mating portion is provided on the second filter 130. In this way, when installing the filter assembly 100, the snap-fit portion 125 can be first engaged with the mating portion, and the first filter 110, the second filter 130 and the third filter 150 can be fixed on the same plane to avoid rotation relative to each other. This makes it convenient for users to install the filter assembly 100 into the slide groove 317.

[0083] In this embodiment, the mating portion is a snap-fit groove 139. All sliding portions 135 are provided with snap-fit grooves 139 on their outer peripheries. The snap-fit portions 125 are protruded from the first and second filter screens 110 and 130, corresponding to the snap-fit grooves 139. When the first, second, and third filter screens 110, 130, and 150 are in the same plane, the snap-fit portions 125 snap into the snap-fit grooves 139. By providing the mating portions as snap-fit grooves 139, this embodiment facilitates snap-fitting.

[0084] In this embodiment, the engaging portion 125 is protruded from the side wall of the avoiding groove 123. The outer periphery of all the sliding portions 135 is provided with an engaging groove 139.

[0085] In this embodiment, the clamping portion 125 is protruded from the side wall of the avoidance groove 123, and the clamping groove 139 is set on the outer periphery of the sliding portion 135. This configuration makes the structure compact, and the clamping portion 125 does not protrude from the side walls of the first filter screen 110 and the third filter screen 150 in the thickness direction.

[0086] In other embodiments of the present application, the positions of the rotating portion 121 and the sliding portion 135 can be interchanged. That is, the sliding portion 135 can be positioned at the ends of the first filter screen 110 and the second filter screen 130, while the rotating portion 121 can be positioned at both ends of the second filter screen 130. Furthermore, the first filter screen 110, the second filter screen 130, and the third filter screen 150 can also be hinged in other ways, such as by hinges.

[0087] In some other embodiments of the present application, two limiting columns may be protruded on both sides of the third filter screen 150 in the width direction, and the third filter screen 150 may be limited by the limiting columns being inserted into the vertical section 323 of the slide groove 317.

[0088] Of course, a slot can be provided on the third filter 150 and a buckle can be provided on the middle frame 310 . After the filter assembly 100 is installed in place, the buckle is snapped into the slot to fix the third filter 150 .

[0089] Please refer to Figures 1 to 10In this embodiment, the air conditioner 300 further includes a surface frame 330, which is mounted on the outside of the middle frame 310. The surface frame 330 has an installation opening 331 corresponding to the slide groove 317. The filter assembly 100 can be inserted into the slide groove 317 through the installation opening 331.

[0090] Before installing the filter assembly 100, first rotate the first filter 110, the second filter 130, and the third filter 150 to the same plane, so that the engaging portion 125 engages within the engaging groove 139. Then, from the lower end of the slideway groove 317, the sliding shafts 111 on either side of the top of the first filter 110 are inserted into the slideway grooves 317 on both sides, pushing the filter assembly 100 upward. When the sliding shafts 111 reach the arcuate transition section 321 of the slideway groove 317, the sliding portion 135 is still located in the vertical section 323. At this time, the sidewalls of the slideway groove 317 abut against the sliding shaft 111, exerting a lateral force on the sliding shaft 111, thereby rotating the first filter 110 relative to the second filter 130 and releasing the engaging portion between the first and second filter 110, 130. Push the filter upward again. When the sliding portion 135 of the first end 131 enters the curved transition section 321, the sidewalls of the slideway 317 exert a lateral force on the sliding portion 135, causing the second filter 130 to rotate relative to the third filter 150 and releasing the engagement. Continue pushing until the first filter 110, second filter 130, and third filter 150 are all moved to the preset center position, completing installation. To remove the filter, simply pull it outward along the slideway 317.

[0091] In summary, the filter assembly 100 and the air conditioner 300 provided in this embodiment are configured by setting the filter assembly 100 to be a first filter 110, a second filter 130 and a third filter 150 which are hinged in sequence, and making them of a hard material that is not easily deformed, and setting sliding shafts 111 on both sides of the first filter 110, and setting sliding parts 135 on both sides of the second filter 130. In this way, when installing the filter assembly 100, only the sliding shaft 111 and the sliding part 135 are inserted into the slide groove 317 of the middle frame 310. The sliding shaft 111 and the sliding part 135 cooperate with the slide groove 317 to make the first filter 110 rotate relative to the second filter 130 and the second filter 130 rotate relative to the third filter 150, so that the first filter 110 can slide from the slide groove 317 to the top side of the middle frame 310, and the second filter 130 can slide from the slide groove 317 to the transition between the top side and the front side of the middle frame 310, and the third filter 150 is installed on the front side of the middle frame 310, avoiding the problem of the filter assembly 100 being stuck with the slide groove 317, so that the filter assembly 100 can slide smoothly along the slide groove 317, so as to facilitate the disassembly and assembly of the filter assembly 100.

[0092] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A filter assembly, characterized in that: It includes a first filter screen (110), a second filter screen (130) and a third filter screen (150); The first filter screen (110), the second filter screen (130) and the third filter screen (150) are all made of hard materials; The second filter screen (130) specifically has a first end (131) and a second end (133) in the length direction, the first filter screen (110) is hinged to the first end (131), and the third filter screen (150) is hinged to the second end (133); Both sides of the first filter screen (110) in the width direction are provided with sliding shafts (111) protruding outwards, and the sliding shafts (111) are used to cooperate with the slide grooves (317) provided on the middle frame (310) to enable the first filter screen (110) to rotate relative to the second filter screen (130) during the process of disassembling and assembling the filter screen assembly; Both sides of the second filter screen (130) in the width direction are provided with sliding parts (135) protruding outwards, and the sliding parts (135) are used to cooperate with the slide groove (317) provided on the middle frame (310) to enable the second filter screen (130) to rotate relative to the third filter screen (150) during the process of disassembling and assembling the filter screen assembly.

2. The filter assembly according to claim 1, characterized in that The sliding portion (135) is provided on both sides of the first end (131) and the second end (133) in the width direction; A rotating portion (121) is provided at one end of the length direction of the first filter screen (110) and the third filter screen (150); The rotating portion (121) provided on the first filter screen (110) is hingedly engaged with the sliding portion (135) provided on the first end (131); The rotating portion (121) provided on the third filter screen (150) is hingedly engaged with the sliding portion (135) provided on the second end (133).

3. The filter assembly according to claim 2, characterized in that Both ends of the rotating portion (121) provided on the first filter screen (110) extend out of both sides of the first filter screen (110) in the width direction; both ends of the rotating portion (121) provided on the third filter screen (150) extend out of both sides of the third filter screen (150) in the width direction; All the sliding parts (135) are provided with a rotating shaft hole (137); The rotating parts (121) provided on both sides of the first filter screen (110) are installed in the rotating shaft holes (137) of the two sliding parts (135) of the first end (131) in a one-to-one correspondence; The rotating parts (121) arranged on both sides of the third filter screen (150) are installed in the rotating shaft holes (137) of the two sliding parts (135) of the second end (133) in a one-to-one correspondence.

4. The filter assembly according to claim 3, characterized in that All side walls of the sliding parts (135) are provided with mounting notches (141) communicating with the rotating shaft holes (137); The rotating portion (121) is installed in the rotating shaft hole (137) via the installation notch (141).

5. The filter assembly according to claim 4, characterized in that The installation notch (141) is provided corresponding to one side of the second filter screen (130) in the thickness direction; All of the sliding portions (135) partially protrude from the side wall of the second filter screen (130) in the width direction of the second filter screen (130); The first filter screen (110) and the second filter screen (130) are provided at one end of the rotating portion (121), and are provided with avoidance grooves (123) on both sides in the width direction; The avoidance groove (123) is used to avoid the sliding portion (135) when the first filter screen (110) and the third filter screen (150) rotate relative to the second filter screen (130).

6. The filter assembly according to any one of claims 2 to 5, characterized in that: The first filter screen (110) and the third filter screen (150) are both provided with a clamping portion (125), and the second filter screen (130) is provided with a matching portion; When the first filter screen (110), the second filter screen (130) and the third filter screen (150) are in the same plane, the clamping portion (125) is clamped with the matching portion.

7. The filter assembly according to claim 6, characterized in that The matching portion is a snap-fitting groove (139), all the sliding portions (135) are provided with the snap-fitting groove (139), and the snap-fitting portion (125) is provided on the first filter screen (110) and the second filter screen (130) corresponding to the snap-fitting groove (139); when the first filter screen (110), the second filter screen (130) and the third filter screen (150) are on the same plane, the snap-fitting portion (125) is snap-fitted into the snap-fitting groove (139).

8. The filter assembly according to claim 7, characterized in that Both ends of the rotating portion (121) provided on the first filter screen (110) extend out from both sides of the first filter screen (110) in the width direction; Both ends of the rotating portion (121) provided on the third filter screen (150) extend out from both sides of the third filter screen (150) in the width direction; The first filter screen (110) and the second filter screen (130) are provided at one end of the rotating portion (121), and are provided with avoidance grooves (123) on both sides in the width direction, and the clamping portion (125) is protruded from the side wall of the avoidance groove (123); All the sliding parts (135) are provided with a rotating shaft hole (137), and the outer periphery of all the sliding parts (135) is provided with the clamping groove (139); The sliding portion (135) extends into the avoidance groove (123), and the rotating portion (121) is installed in the rotating shaft hole (137) in a one-to-one correspondence.

9. The filter assembly according to any one of claims 1 to 5, characterized in that: The sliding shaft (111) is arranged on both sides of the first filter screen (110) away from the first end (131).

10. An air conditioner, characterized in that: The air conditioner comprises a middle frame (310) and a filter assembly according to any one of claims 1 to 9, wherein the middle frame (310) is provided with a slide groove (317), and the slide groove (317) is bent and extended from the front side of the middle frame (310) to the top side of the middle frame (310); The sliding shaft (111) is inserted into the slideway groove (317), and the first filter (110) is installed on the top side of the middle frame (310); The sliding portion (135) is inserted into the slideway groove (317), and the second filter screen (130) is obliquely installed at the transition between the top side and the front side of the middle frame (310); The third filter (150) is installed on the front side of the middle frame (310).

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