Indoor unit of air conditioner

Abstract

The utility model relates to the technical field of air conditioning equipment, in particular to an air conditioner indoor unit. The air conditioner indoor unit comprises an indoor unit shell, and an air inlet is formed in the indoor unit shell; the filtering assembly is arranged at the air inlet and comprises a first grid, a second grid and a filter element; the second grid is overlapped with the first grid along the air inlet direction; the filter screen is arranged between the first grid and the second grid; and the first grating is connected with the second grating to extrude the filter screen. The filter assembly comprises the first grating, the second grating and the filter screen, the first grating and the second grating are stacked in the air inlet direction, the filter screen is arranged between the first grating and the second grating, the first grating is connected with the second grating and extrudes the filter screen, and therefore the deformed and arched part of the filter screen can sink, and the air inlet of the filter screen is blocked. The area of the area defined by the outer contour of the filter screen is increased, that is to say, under extrusion of the first grating and the second grating, the boundary dimension of the filter screen is increased, so that the coverage area of the filter screen is increased, and the filtering effect on impurities such as oil smoke is improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, and in particular to an indoor air conditioning unit. Background Technology

[0002] As people's living standards continue to improve, air conditioners designed for specific environments are beginning to appear in people's lives, such as kitchen air conditioners. Kitchen air conditioners need to operate in the high-fumes environment of the kitchen, where the concentration of fumes is already high and the air is mixed with oil fumes. Therefore, filtering the fumes from the air is a key function of kitchen air conditioners.

[0003] Currently, kitchen air conditioners filter cooking fumes by installing filter assemblies at the air inlet. These assemblies consist of a filter housing, a filter cover, and a filter. The filter is attached to the housing, and then the cover seals the housing. The housing is then fitted into the air inlet to filter the cooking fumes. However, in practice, these current filtration systems do not meet design requirements for effective filtration of cooking fumes. Utility Model Content

[0004] This application discloses an air conditioner indoor unit that can solve the problem that the current air conditioner indoor unit's filter components cannot meet the design requirements for filtering impurities such as oil fumes.

[0005] To achieve the above objectives, this application discloses an indoor air conditioning unit, comprising:

[0006] An indoor unit housing, wherein an air inlet is provided on the indoor unit housing;

[0007] A filter assembly, wherein the filter assembly is disposed at the air inlet, the filter assembly comprising:

[0008] First grille;

[0009] The second grille is stacked on top of the first grille along the air intake direction;

[0010] A filter screen, wherein the filter screen is disposed between the first grid and the second grid;

[0011] The first grid is connected to the second grid to compress the filter screen.

[0012] In this application, the filter assembly includes a first grille, a second grille, and a filter screen. The first grille and the second grille are stacked along the air inlet direction, and the filter screen is placed between the first grille and the second grille. The first grille is connected to the second grille and compresses the filter screen. As a result, the deformed and arched part of the filter screen will sink down to increase the area of ​​the region enclosed by the outer contour of the filter screen. In other words, under the compression of the first grille and the second grille, the outer dimensions of the filter screen will increase, thereby increasing the coverage area of ​​the filter screen and improving the filtration effect on impurities such as oil fumes.

[0013] In an optional embodiment, the filtering component further includes:

[0014] A first frame is provided, which surrounds the first grille and is connected to the edge of the first grille;

[0015] The second frame surrounds the second grille and is connected to the edge of the second grille;

[0016] The first grille and the second grille are connected by the first frame and the second frame.

[0017] In this embodiment, the first frame surrounds the first grille, providing additional support and fixation for the first grille; the second frame surrounds the second grille, also providing additional support and fixation for the second grille.

[0018] In one alternative embodiment, the outer edge of the filter screen is interference-fitted with the inner wall of the first frame in a direction perpendicular to the air intake direction.

[0019] This prevents air from passing between the outer edge of the filter and the first frame, thereby further improving the filter's filtration effect.

[0020] In one alternative embodiment, the first grille includes:

[0021] Multiple first grid strips;

[0022] The second grille includes:

[0023] Multiple second grille bars;

[0024] At least some of the first grille bars are offset from all of the second grille bars in the air intake direction.

[0025] In this way, the area of ​​the first and second grids pressing the filter screen can be increased, thereby making the outer contour of the filter screen larger and further improving the filtration effect of the filter screen.

[0026] In one optional embodiment, among the plurality of first grid strips, a portion of the first grid strips are first sub-grid strips, and another portion of the first grid strips are second sub-grid strips, with the first sub-grid strips and the second sub-grid strips being arranged intersectingly;

[0027] Of the plurality of second grid bars, a portion of the second grid bars are third sub-grid bars, and another portion of the second grid bars are fourth sub-grid bars, wherein the third sub-grid bars and the fourth sub-grid bars are arranged intersectingly;

[0028] At least some of the first sub-grid bars are offset from all of the third sub-grid bars in the air inlet direction; and / or, at least some of the second sub-grid bars are offset from all of the fourth sub-grid bars in the air inlet direction.

[0029] This allows for a larger overall shape of the filter, thereby further improving its filtration efficiency.

[0030] In one alternative embodiment, the first frame is rotatably connected to the second frame.

[0031] This reduces the number of locking structures connecting the first and second frames, making it easier to separate the first and second frames and thus facilitating filter replacement.

[0032] In one alternative embodiment, the first border includes:

[0033] The first and second frame edges are set relative to each other;

[0034] The second border includes:

[0035] The third and fourth border edges are set relative to each other;

[0036] The first frame edge is detachably rotatably connected to the third frame edge so that the first frame edge can rotate relative to the second frame edge.

[0037] In this way, the first frame and the second frame can be fixed on different sides respectively, which improves the stability of fixing the first frame and the second frame and facilitates the maintenance or replacement of the first grille or the second grille.

[0038] In one alternative embodiment, one of the first frame edge and the third frame edge is provided with a slot, and the other is provided with a protrusion, the protrusion being able to be inserted into the slot and rotate relative to the slot.

[0039] This makes the overall structure of the filter assembly simpler and reduces manufacturing difficulty; it also ensures the smoothness and flexibility of the first and third frame edges during rotation.

[0040] In one alternative embodiment, the third frame edge has a tongue, and the slot is formed between the tongue and the third frame edge.

[0041] In this way, the third frame edge can have greater structural strength, preventing it from deforming under external force, thus ensuring the rotational stability of the first and third frame edges.

[0042] In one optional embodiment, the tongue includes a connecting portion and a fastening portion, one end of the connecting portion is connected to the fastening portion, and the other end is connected to the third frame edge;

[0043] The fastening part is spaced apart from the third frame edge, the slot is located between the fastening part and the third frame edge, and the end of the fastening part away from the connecting part is inclined away from the third frame edge.

[0044] This reduces the difficulty of inserting the protrusion into the slot.

[0045] In one optional embodiment, a locking structure is provided between the first frame and the second frame. The locking structure can switch between a locked state and an unlocked state. When the locking structure is in the locked state, the first frame and the second frame are relatively fixed. When the locking structure is in the unlocked state, the first frame and the second frame can be separated.

[0046] The locking structure allows the first and second frames to be detachably connected, making it easy to replace the filter.

[0047] In one alternative embodiment, the first border includes:

[0048] The first and second frame edges are set relative to each other;

[0049] The second border includes:

[0050] The third and fourth border edges are set relative to each other;

[0051] The locking structure includes:

[0052] A card protrusion is provided on the edge of the second frame;

[0053] A buckle is provided on the fourth frame edge.

[0054] This not only ensures the reliability of the connection between the first and second frames, but also allows the first and second frames to be easily disassembled for easy filter replacement.

[0055] In one alternative embodiment, one edge of the filter is engaged between the first grille and the engagement protrusion.

[0056] In this way, the protruding part can be used with the first grille to initially position the filter screen, and the protruding part can also be used with the buckle to fix the second and fourth frame edges, thus achieving the purpose of two uses in one device. Attached Figure Description

[0057] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0058] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit disclosed in an embodiment of this application;

[0059] Figure 2 This is a schematic diagram of the structure of the filtering component disclosed in the embodiments of this application;

[0060] Figure 3 This is an exploded view of the filtering component disclosed in the embodiments of this application;

[0061] Figure 4 This is a schematic diagram showing the cooperation between the first grille and the first frame disclosed in an embodiment of this application;

[0062] Figure 5 This is a schematic diagram of the structure of the filter component disclosed in the embodiments of this application after the filter screen is hidden;

[0063] Figure 6 This is a cross-sectional view of the filtering component disclosed in the embodiments of this application after the filter screen is hidden;

[0064] Figure 7 This is a schematic diagram showing the cooperation between the second grille and the second frame disclosed in an embodiment of this application.

[0065] Explanation of reference numerals in the attached figures:

[0066] 100. Indoor unit housing; 200. Filter assembly; 210. First grille; 211. First grille bar; 212. First sub-grate bar; 213. Second sub-grate bar; 220. Second grille; 221. Second grille bar; 222. Third sub-grate bar; 223. Fourth sub-grate bar; 230. Filter screen; 240. First frame; 250. First frame edge; 251. Protrusion; 260. Second frame edge; 261. Locking protrusion; 270. Second frame; 280. Third frame edge; 281. Slot; 282. Tongue; 2821. Connecting part; 2822. Fastening part; 290. Fourth frame edge; 291. Buckle; 300. Air inlet panel. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0069] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0070] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0071] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0072] As people's living standards continue to improve, air conditioners designed for specific environments are beginning to appear in people's lives, such as kitchen air conditioners. Kitchen air conditioners need to operate in the high-fumes environment of the kitchen, where the concentration of fumes is already high and the air is mixed with oil fumes. Therefore, filtering the fumes from the air is a key function of kitchen air conditioners.

[0073] Currently, kitchen air conditioners filter cooking fumes by installing filter assemblies at the air inlet. These assemblies consist of a filter housing, a filter cover, and a filter. The filter is attached to the housing, and then the cover seals the housing. The housing is then fitted into the air inlet to filter the cooking fumes. However, in practice, these current filtration systems do not meet design requirements for effective filtration of cooking fumes.

[0074] The applicant discovered that the current filter screen is flexible, which can easily cause some areas of the filter screen to arch and deform during transportation or installation. This reduces the external size of the filter screen, thereby reducing the coverage area and weakening the filtering effect on oil fumes.

[0075] The air conditioning indoor unit provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0076] like Figures 1 to 7 As shown in the figure, this application discloses an indoor unit for an air conditioner, including:

[0077] The indoor unit housing 100 has an air inlet. The indoor unit housing 100 forms the overall appearance of the air conditioner indoor unit. The interior of the indoor unit housing 100 is hollow to form a receiving cavity, which is configured to house multiple components of the air conditioner indoor unit, such as electrical circuits and the evaporator. The air inlet allows indoor air to enter the indoor unit housing 100.

[0078] Filter assembly 200, located at the air inlet, includes:

[0079] The first grille 210 is used to cooperate with the second grille 220.

[0080] The second grille 220 is stacked on top of the first grille 210 along the air intake direction, and the second grille 220 is used to cooperate with the first grille 210. Here, the air intake direction refers to the direction in which indoor air enters the indoor unit casing 100 from the filter assembly 200.

[0081] A filter 230 is disposed between the first grille 210 and the second grille 220 to filter impurities in the air and improve air cleanliness. It should be noted that the filter 230 is flexible and can deform under external force. Optionally, the indoor unit of the air conditioner may also include an air inlet panel 300, with the filter assembly 200 disposed on the air inlet panel 300, for example, by snap-fitting. The air inlet panel 300 is located at the air inlet.

[0082] The first grille 210 is connected to the second grille 220 to compress the filter screen 230. This can press down the arched part of the filter screen 230, increase the outer dimensions of the filter screen 230, and increase the coverage area of ​​the filter screen 230.

[0083] In this application, the filter assembly 200 includes a first grille 210, a second grille 220, and a filter screen 230. The first grille 210 and the second grille 220 are stacked along the air inlet direction, and the filter screen 230 is disposed between the first grille 210 and the second grille 220. The first grille 210 is connected to the first grille 220 and compresses the filter screen 230. In this way, the deformed and arched part of the filter screen 230 will sink down to increase the area of ​​the region enclosed by the outer contour of the filter screen 230. That is to say, under the compression of the first grille 210 and the second grille 220, the outer dimensions of the filter screen 230 will become larger, thereby increasing the coverage area of ​​the filter screen 230 and improving the filtration effect on impurities such as oil fumes.

[0084] In an optional embodiment, the filtering component 200 further includes:

[0085] A first frame 240 surrounds the first grille 210 and connects to the edge of the first grille 210. The first frame 240 provides a mounting base for the first grille 210 and can be connected to the second frame 270 described below. For example, the first grille 210 can be located inside the first frame 240, in which case the edge of the first grille 210 connects to the inner wall of the first frame 240; or the first grille 210 can be located outside the first frame 240, in which case the first grille 210 can be fitted and connected to the end face of the first frame 240.

[0086] The second frame 270 surrounds the second grille 220 and connects to the edge of the second grille 220. The second frame 270 provides a mounting base for the second grille 220 and can connect to the first frame 240. For example, the second grille 220 can be located inside the second frame 270, in which case its edge connects to the inner wall of the second frame 270; or the second grille 220 can be located outside the second frame 270, in which case it can be fitted and connected to the end face of the second frame 270.

[0087] The first grille 210 and the second grille 220 are connected by a first frame 240 and a second frame 270. For example, the first frame 240 and the second frame 270 can be connected by screws, snap-fit, or other means. This application does not limit the connection method between the two.

[0088] In this embodiment, the first frame 240 surrounds the first grille 210, providing additional support and fixation for the first grille 210, thus preventing deformation or damage when subjected to external forces. Similarly, the second frame 270 surrounds the second grille 220, also providing additional support and fixation for the second grille 220. Furthermore, since the first frame 240 and the second frame 270 have relatively large cross-sectional areas, their arrangement facilitates the connection between the first grille 210 and the second grille 220, resulting in a more stable connection. Of course, the filter assembly 200 may also exclude the first frame 240 and the second frame 270; this application does not impose any limitations on this.

[0089] To further improve the filtration effect of filter 230, in an optional embodiment, the outer edge of filter 230 is interference-fitted with the inner wall of the first frame 240 in a direction perpendicular to the air intake direction.

[0090] In this embodiment, the filter 230 is disposed within the first frame 240. Under the compression of the first grille 210 and the second grille 220, the outer edge of the filter 230 and the inner wall of the first frame 240 are interference-fitted in a direction perpendicular to the air intake direction. This eliminates the gap between the outer edge of the filter 230 and the first frame 240, thereby preventing air from passing between the outer edge of the filter 230 and the first frame 240, thus further improving the filtration effect of the filter 230. Of course, the fit between the outer edge of the filter 230 and the inner wall of the first frame 240 can also be a clearance fit, and this application does not limit this.

[0091] In one alternative embodiment, the first grille 210 includes:

[0092] Multiple first grid strips 211, which can cooperate with multiple second grid strips 221 to compress the filter screen 230.

[0093] The second grille 220 includes:

[0094] Multiple second grille strips 221, at least some of the first grille strips 211 and all the second grille strips 221 are staggered in the air intake direction, which can increase the compression area of ​​the first grille 210 and the second grille 220 on the filter 230.

[0095] In this embodiment, the first grille 210 includes a plurality of first grille strips 211, and the second grille 220 includes a plurality of second grille strips 221. At least some of the first grille strips 211 are offset from all the second grille strips 221 in the air inlet direction. This reduces the number of first grille strips 211 that overlap with the second grille strips 221, thereby increasing the area of ​​the filter 230 jointly covered by the first grille strips 211 and the second grille strips 221. This increases the area of ​​the filter 230 compressed by the first grille 210 and the second grille 220, making the outer contour of the filter 230 larger and further improving the filtration effect of the filter 230. Of course, each first grille strip 211 can also be arranged opposite to each second grille strip 221 in the air inlet direction, and this application does not limit this.

[0096] In one alternative embodiment, please refer to Figures 3 to 5 Of the multiple first grid strips 211, some are first sub-grid strips 212, and others are second sub-grid strips 213, with the first sub-grid strips 212 and second sub-grid strips 213 arranged intersectingly. This intersecting arrangement of the first sub-grid strips 212 and second sub-grid strips 213 increases the cross-sectional area of ​​the first grid strips 211, which not only increases the structural strength of the first grid 210 but also increases the compression area on the filter screen 230. Of course, the multiple first grid strips 211 can also all be first sub-grid strips 212 or all be second sub-grid strips 213.

[0097] Of the multiple second grid strips 221, some are third sub-grid strips 222, and others are fourth sub-grid strips 223, with the third and fourth sub-grid strips 222 and 223 arranged intersecting each other. This intersecting arrangement of the third and fourth sub-grid strips 222 and 223 increases the cross-sectional area of ​​the second grid strips 221, which not only increases the structural strength of the second grid 220 but also increases the compression area on the filter screen 230. Of course, all the multiple second grid strips 221 can also be either third sub-grid strips 222 or all fourth sub-grid strips 223.

[0098] At least some of the first sub-grid strips 212 are offset from all the third sub-grid strips 222 in the air inlet direction. This reduces the number of first sub-grid strips 212 that overlap with the third sub-grid strips 222, thereby increasing the area of ​​the filter screen 230 jointly covered by the first sub-grid strips 212 and the second sub-grid strips 213. This increases the area of ​​the filter screen 230 squeezed by the first grid 210 and the second grid 220, making the outer contour of the filter screen 230 larger and further improving the filtration effect of the filter screen 230.

[0099] And / or, at least some of the second sub-grid strips 213 are offset from all the fourth sub-grid strips 223 in the air inlet direction. This can reduce the number of second sub-grid strips 213 that overlap with the fourth sub-grid strips 223, thereby increasing the area of ​​the filter screen 230 jointly covered by the second sub-grid strips 213 and the second sub-grid strips 213. This increases the area of ​​the filter screen 230 squeezed by the first grid 210 and the second grid 220, thereby making the outer contour of the filter screen 230 larger, so as to further improve the filtration effect of the filter screen 230.

[0100] In one alternative embodiment, the first frame 240 is rotatably connected to the second frame 270 so that the first frame 240 can rotate relative to the second frame 270.

[0101] If the first frame 240 and the second frame 270 are only connected by a locking structure, a large number of locking structures would be needed to securely fix the first frame 240 and the second frame 270, which would obviously increase the difficulty of connecting or separating the first frame 240 and the second frame 270. Therefore, in this embodiment, the first frame 240 and the second frame 270 are rotatably connected. The rotatable structure between the first frame 240 and the second frame 270 can also fix the first frame 240 and the second frame 270. In other words, the rotatable structure between the first frame 240 and the second frame 270 can replace the locking structure between them. Obviously, this reduces the number of locking structures, making it easier to separate the first frame 240 and the second frame 270, thereby facilitating the replacement of the filter 230.

[0102] In one alternative embodiment, please refer to Figure 6 The first border 240 includes:

[0103] The first frame edge 250 and the second frame edge 260 can be set adjacent to each other or relative to each other.

[0104] The second border 270 includes:

[0105] The third frame edge 280 and the fourth frame edge 290 can be set adjacently or relative to each other.

[0106] The first frame edge 250 and the third frame edge 280 are detachably rotatably connected so that the first frame edge 240 can rotate relative to the second frame edge 270.

[0107] In this embodiment, the first frame edge 250 and the third frame edge 280 are detachably rotatably connected. That is, the rotating structure between the first frame edge 250 and the third frame edge 280 can be disassembled. When it is necessary to replace or repair the first grille 210 or the second grille 220, only the rotating structure between the first frame edge 250 and the third frame edge 280 needs to be disassembled. At this time, the first frame edge 240 and the second frame edge 270 are separated, and the first grille 210 and the second grille 220 are also separated, facilitating the repair or replacement of the first grille 210 or the second grille 220. Of course, the first frame edge 250 and the third frame edge 280 can also be connected by a hinge or other structure, in which case the rotating structure between the first frame edge 250 and the third frame edge 280 is not detachable.

[0108] In one alternative embodiment, please continue to refer to Figure 6 The second frame edge 260 is disposed opposite to the first frame edge 250; the fourth frame edge 290 is disposed opposite to the third frame edge 280. In this way, when this application is combined with the embodiment of "the latch protrusion is disposed on the second frame edge, and the buckle is disposed on the fourth frame edge," the rotation structure and locking structure between them can be disposed opposite to each other. That is, the rotation structure and locking structure are located on opposite sides, thereby fixing the first frame edge 240 and the second frame edge 270 on opposite sides, further improving the stability of fixing the first frame edge 240 and the second frame edge 270. Of course, the second frame edge 270 and the first frame edge 250 can also be disposed adjacent to each other, and the fourth frame edge 290 and the third frame edge 280 can also be disposed adjacent to each other; this application does not limit this. In an optional embodiment, please continue to refer to... Figure 6 One of the first frame edge 250 and the third frame edge 280 is provided with a slot 281, and the other is provided with a protrusion 251. The protrusion 251 can be inserted into the slot 281 and can rotate relative to the slot 281. It should be noted that the size of the slot 281 is larger than the size of the protrusion 251, so as to provide sufficient clearance for rotation between the two.

[0109] The specific assembly process is as follows: Adjust the positions of the first frame 240 and the second frame 270 so that the protrusion 251 and the slot 281 are positioned obliquely upwards opposite each other; insert the second frame 270 obliquely into the first frame 240 so that the protrusion 251 is inserted into the slot 281; control the relative rotation of the first frame 240 and the second frame 270 to lock the locking structure between them. It can be seen that this embodiment achieves the rotational connection between the first frame 240 and the second frame 270 through the slot 281 and the protrusion 251. This structure does not require complex hinges or other rotating connection components, making the overall structure simpler and reducing manufacturing difficulty; furthermore, the fit between the slot 281 and the protrusion 251 has a certain gap, ensuring the smoothness and flexibility of the first frame edge 250 and the third frame edge 280 during rotation.

[0110] In one alternative embodiment, please continue to refer to Figure 6 The first frame edge 250 has a protrusion 251, and one edge of the filter 230 is engaged between the first grid 210 and the protrusion 251.

[0111] In this embodiment, the protrusion 251 is disposed on the first frame edge 250, and there is a gap between the protrusion 251 and the first grille 210. One edge of the filter 230 is engaged in the gap. That is, the protrusion 251 can cooperate with the first grille 210 to initially position the filter 230, and the protrusion 251 can also cooperate with the slot 281 to realize the rotation of the first frame edge 250 and the third frame edge 280, thus achieving a dual purpose. Of course, even after the filter 230 is disposed in the gap between the protrusion 251 and the first grille 210, there may still be a gap between the filter 230 and the protrusion 251, that is, the filter 230 will not be engaged between the first grille 210 and the protrusion 251. In an optional embodiment, please continue to refer to... Figure 6 The third frame edge 280 has a tongue 282, and a slot 281 is formed between the tongue 282 and the third frame edge 280.

[0112] In this embodiment, the slot 281 is formed between the third frame edge 280 and the tongue 282, and the tongue 282 is formed by extending it outward on the third frame edge 280, rather than by removing material. This gives the third frame edge 280 greater structural strength, preventing it from deforming under external force, thus ensuring the rotational stability of the first frame edge 250 and the third frame edge 280. Of course, the slot 281 can also be formed on the third frame edge 280 by removing material; this application does not limit this.

[0113] In one alternative embodiment, please continue to refer to Figure 6 and Figure 7 The tongue 282 includes a connecting part 2821 and a fastening part 2822. One end of the connecting part 2821 is connected to the fastening part 2822, and the other end is connected to the third frame edge 280. The connecting part 2821 is used to connect the fastening part 2822 to the third frame edge 280. The fastening part 2822 is used to cooperate with the third frame edge 280 to form the aforementioned slot 281.

[0114] The fastening part 2822 is spaced apart from the third frame edge 280, and the slot 281 is located between the fastening part 2822 and the third frame edge 280. The end of the fastening part 2822 away from the connecting part 2821 is inclined away from the third frame edge 280.

[0115] In this embodiment, the end of the fastening portion 2822 facing away from the connecting portion 2821 is inclined away from the third frame edge 280. That is, the end of the fastening portion 2822 facing away from the connecting portion 2821 opens away from the third frame edge 280. In this way, during the process of inserting the protrusion 251 into the slot 281, the end of the fastening portion 2822 facing away from the connecting portion 2821 can guide the protrusion 251, thereby guiding the protrusion 251 into the slot 281 and reducing the difficulty of inserting the protrusion 251 into the slot 281. Of course, the end of the fastening portion 2822 facing away from the connecting portion 2821 may not be inclined, and this application does not limit this.

[0116] In an optional embodiment, in order to connect the first frame 240 and the second frame 270, a locking structure is provided between the first frame 240 and the second frame 270. The locking structure can switch between a locked state and an unlocked state. When the locking structure is in the locked state, the first frame 240 and the second frame 270 are relatively fixed, that is, the first frame 240 cannot rotate relative to the second frame 270. When the locking structure is in the unlocked state, the first frame 240 and the second frame 270 can be separated, that is, the first frame 240 can rotate relative to the second frame 270.

[0117] In one alternative embodiment, the first border 240 includes:

[0118] The first frame edge is set to 250 and the second frame edge to 260.

[0119] The second border 270 includes:

[0120] The third frame edge is set to 280 and the fourth frame edge to 290.

[0121] The locking structure includes:

[0122] The latching protrusion 261 is provided on the second frame edge 260 to engage with the latch 291 to fix the second frame edge 260 and the fourth frame edge 290.

[0123] Buckle 291 is provided on the fourth frame edge 290 for engaging with the buckle protrusion 261.

[0124] In this embodiment, the first frame 240 and the second frame 270 are locked together by a snap fastener 291 and a snap protrusion 261. The snap fastening not only ensures a reliable connection, but also makes disassembly convenient. This not only ensures the reliability of the connection between the first frame 240 and the second frame 270, but also allows the first frame 240 and the second frame 270 to be easily disassembled for easy replacement of the filter 230.

[0125] In an alternative embodiment, one edge of the filter 230 is engaged between the first grille 210 and the engagement protrusion 261.

[0126] In this embodiment, the latching protrusion 261 is disposed on the second frame edge 260, and there is a gap between the latching protrusion 261 and the first grille 210. One edge of the filter screen 230 is engaged within the gap. That is, the latching protrusion 261 can cooperate with the first grille 210 to initially position the filter screen 230, and the latching protrusion 261 can also cooperate with the buckle 291 to fix the second frame edge 260 and the fourth frame edge 290, thus achieving a dual purpose. Of course, even after the filter screen 230 is disposed in the gap between the latching protrusion 261 and the first grille 210, there may still be a gap between the filter screen 230 and the latching protrusion 261, that is, the filter screen 230 will not be engaged between the first grille 210 and the latching protrusion 261. The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here. The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: An indoor unit housing, wherein an air inlet is provided on the indoor unit housing; A filter assembly, wherein the filter assembly is disposed at the air inlet, the filter assembly comprising: First grille; A first frame is provided, which surrounds the first grille and is connected to the edge of the first grille; The second grille is stacked on top of the first grille along the air intake direction; The second frame surrounds the second grille and is connected to the edge of the second grille; A filter screen is disposed between the first grid and the second grid; The first grille and the second grille are connected by the first frame and the second frame to compress the filter screen.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The outer edge of the filter screen is interference-fitted with the inner wall of the first frame in a direction perpendicular to the air intake direction.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The first frame and the second frame are rotatably connected.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The first border includes: The first and second frame edges are set relative to each other; The second border includes: The third and fourth border edges are set relative to each other; The first frame edge is detachably rotatably connected to the third frame edge so that the first frame edge can rotate relative to the second frame edge.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, One of the first frame edge and the third frame edge is provided with a slot, and the other is provided with a protrusion. The protrusion can be inserted into the slot and can rotate relative to the slot.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The third frame edge has a tongue, and the slot is formed between the tongue and the third frame edge.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The tongue includes a connecting part and a fastening part. One end of the connecting part is connected to the fastening part, and the other end is connected to the third frame edge. The fastening part is spaced apart from the third frame edge, the slot is located between the fastening part and the third frame edge, and the end of the fastening part away from the connecting part is inclined away from the third frame edge.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, A locking structure is provided between the first frame and the second frame. The locking structure can switch between a locked state and an unlocked state. When the locking structure is in the locked state, the first frame and the second frame are relatively fixed. When the locking structure is in the unlocked state, the first frame and the second frame can be separated.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The first border includes: The first and second frame edges are set relative to each other; The second border includes: The third and fourth border edges are set relative to each other; The locking structure includes: A card protrusion is provided on the edge of the second frame; A buckle is provided on the fourth frame edge.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, One edge of the filter screen is engaged between the first grille and the protruding part.

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