Air conditioner

Abstract

The application provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises a shell and a filter screen cover. A top plate of the shell is provided with an air return opening, and a region of the top plate located at the front side of the air return opening is provided with a clamping portion. A front edge region of the filter screen cover is provided with an upwardly extending extension arm, and a region of the extension arm located at the front side is provided with a clamping protrusion. The filter screen cover is arranged on the air return opening, and the clamping protrusion is clamped and matched with the clamping portion from the front to the back. The filter screen cover in the air conditioner is convenient to disassemble and assemble, and has a lower requirement for the space above the top plate.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner. Background Technology

[0002] Air conditioners are widely used for indoor temperature regulation. Existing indoor units typically have filters installed at the return air vent to filter the airflow entering the duct, reducing the blockage and damage to the duct components caused by impurities and dust, and minimizing their negative impact on heat exchange efficiency. A filter cover is usually installed outside the return air vent to protect the filter and the vent. Replacing the filter requires disassembling and installing it; however, existing indoor units are generally installed against a wall, especially wall-mounted units where the gap between the top plate and the ceiling is small, making filter removal and installation inconvenient. Summary of the Invention

[0003] The purpose of this invention is to provide an air conditioner that solves the technical problem of inconvenient disassembly and assembly of the filter cover in the prior art.

[0004] To solve the above problems, the present invention provides an air conditioner, including a housing and a filter cover. The top plate of the housing is provided with a return air vent, and the area of ​​the top plate in front of the return air vent is provided with a snap-fit ​​part. The front edge area of ​​the filter cover is provided with an upwardly extending arm, and the area of ​​the extending arm opposite to the front side is provided with a snap-fit ​​protrusion. The filter cover is placed on the return air vent, and the snap-fit ​​protrusion engages with the snap-fit ​​part from front to back.

[0005] When the air conditioner provided by this invention is in normal use, the latching protrusion engages with the latching part from front to back to improve the firmness of the filter cover's connection to the top plate. When the filter cover needs to be removed or installed for cleaning or other operations, the latching structure formed by the extension arm, the latching protrusion, and the latching part is located at the front edge of the top plate, allowing the operator to easily, comprehensively, and clearly see the latching structure from the outside for easy removal and installation. During disassembly, the operator does not need to insert their arm into the gap between the top plate and the ceiling, thus reducing the height requirement for that gap. Furthermore, since the latching protrusion is located on the left or right sides or rear of the extension arm, the operation... The operator simply inserts their fingers into the front end of the gap, palm down, and pulls the extended end of the extension arm towards themselves using their index finger and other fingers. This causes the extension arm to bend outward, disengaging the snap-fit ​​mechanism. After the filter cover detaches from the top plate, the upward-protruding extension arm and the area in front of the filter cover form a handle for the operator to grip. Specifically, the operator can grasp the front of the filter cover and the rear of the extended end of the extension arm with their thumb and other fingers, palm down, to easily pull the filter cover outward from the gap, thus facilitating the removal of the filter cover from the top plate. Similarly, the filter cover can be easily installed. Furthermore, the user's actions of grasping the extended end of the extension arm and pulling it towards themselves, as well as the action of gripping the entire filter cover, conform to the most convenient and comfortable human gripping and pulling operation, further improving the ease of operation of the snap-fit ​​structure and the ease of removing and installing the filter cover.

[0006] Optionally, the front edge region is provided with a receiving hole, and the extension arm includes a protruding section and an upward-opening U-shaped arm section. The two arm sections of the U-shaped arm section are a first arm section and a second arm section, which are arranged in the front-rear direction. The top end of the first arm section is connected to the area of ​​the front edge region located in front of the receiving hole, and the bottom end of the protruding section is connected to the top end of the second arm section and extends upward out of the receiving hole.

[0007] Optionally, in the left-right direction, at least one end of the second arm segment protrudes relative to the extended segment to form the locking protrusion.

[0008] Optionally, the cam is located at the middle of the rear sidewall of the extension arm.

[0009] Optionally, in the arm segment of the extension arm that extends upward out of the filter cover, all or part of the top portion of the arm segment is inclined from bottom to top and backward to form an anti-slip handle.

[0010] Optionally, the anti-slip handle is located above the locking portion.

[0011] Optionally, the width of the extension arm in the left-right direction ranges from 5cm to 10cm, and the extension arm is provided with reinforcing ribs extending in the left-right direction.

[0012] Optionally, the top of the top plate is provided with a support rib, and the top of the support rib is provided with a snap-fit ​​ear, which extends forward as the snap-fit ​​part; or the snap-fit ​​ear extends upward and is provided with a first snap hole as the snap-fit ​​part.

[0013] Optionally, the rear end face of the filter cover is provided with a rearwardly extending buckle, and the top plate is provided with a plug-in portion in the area behind the return air vent, and the buckle is inserted into the plug-in portion from front to back.

[0014] Optionally, the top plate is provided with a limiting groove surrounding the return air inlet, and the bottom of the groove section of the limiting groove located behind the return air inlet is provided with a guide channel, which runs through the bottom of the groove in the front-back direction and matches the buckle; the filter cover is embedded in the limiting groove, and the buckle is located below the filter cover and inserted into the bottom of the plate of the top plate located behind the guide channel.

[0015] Optionally, a buckle is provided at the bottom of the front edge area, the buckle including a snap-fit ​​arm connected to the front edge area and extending downward and a snap-fit ​​connector provided on one side of the snap-fit ​​arm; a second snap hole is provided in the area of ​​the top plate in front of the return air vent, the snap-fit ​​arm is inserted into the second snap hole, and the snap-fit ​​connector abuts against the bottom end face of the second snap hole. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 An isometric view of the air conditioner provided by the present invention when the extension arm is in the first form;

[0018] Figure 2 for Figure 1 A magnified view of part A in the image;

[0019] Figure 3 An isometric view of the air conditioner provided by the present invention when the extension arm is in the second form;

[0020] Figure 4 for Figure 3 A magnified view of part B in the image;

[0021] Figure 5 for Figure 2 Exploded view of a central air conditioner;

[0022] Figure 6 for Figure 2 Axonometric view of the middle shell;

[0023] Figure 7 for Figure 2 Axonometric view of the middle filter cover;

[0024] Figure 8 for Figure 2 Axonometric sectional view of the middle filter cover.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100-Housing shell; 110-Top plate; 111-Return air vent; 112-Limiting groove; 113-Guide channel; 114-Second locking hole; 115-Allowing hole; 120-Support rib; 130-Snap-fit ​​ear; 131-First locking hole; 200-Filter cover; 210-Front frame strip; 211-Accepting hole; 300-Extension arm; 310-Snap protrusion; 320-U-shaped arm section; 321-First arm section; 322-Second arm section; 330-Extended section; 331-Anti-slip handle; 332-Connecting section; 400-Snap buckle; 500-Snap buckle; 510-Snap-fit ​​arm; 520-Snap-fit ​​connector. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0028] This embodiment provides an air conditioner, such as... Figures 1-4 As shown, the device includes a housing 100 and a filter cover 200. The top plate 110 of the housing 100 is provided with a return air vent 111, and the area of ​​the top plate 110 in front of the return air vent 111 is provided with a snap-fit ​​part. The front edge area of ​​the filter cover 200 is provided with an upwardly extending extension arm 300, and the area of ​​the extension arm 300 different from the front side is provided with a snap-fit ​​protrusion 310. The filter cover 200 is placed on the return air vent 111, and the snap-fit ​​protrusion 310 engages with the snap-fit ​​part from front to back.

[0029] In the air conditioner provided in this embodiment, one end of the extension arm 300 is fixed to the filter cover 200, and the other end extends upward and protrudes from the filter cover 200. The extension arm 300 has a deformable elasticity in the front-to-back direction to drive the locking protrusion 310 to move within a certain range. When the air conditioner is in normal use, the filter cover 200 is placed on the return air vent 111 to limit the filter at the return air vent 111 and to provide a barrier and protection for the return air vent 111. The locking protrusion 310 is engaged with the locking part from front to back to improve the firmness of the filter cover 200 connected to the top plate 110. At this time, the extension arm 300 is in a stress-free state, or the extension arm 300 has a forward elastic deformation and applies a backward elastic force to the locking protrusion 310 to improve the firmness of the locking protrusion 310 and the locking part, thereby further improving the firmness of the filter cover 200 installed on the top plate 110.

[0030] Indoor units, especially wall-mounted units, are generally installed against the wall, and the gap between their top plate 110 and the ceiling is small. When cleaning the filter screen and removing the filter cover 200, the snap-fit ​​structure formed by the extension arm 300, the latching protrusion 310, and the snap-fit ​​part is located at the front edge of the top plate 110. This allows the operator to easily, fully, and clearly see the snap-fit ​​structure from the outside for easy removal and installation. During disassembly, the operator does not need to insert their arm into the gap between the top plate 110 and the ceiling, thus reducing the height requirement for that gap. Furthermore, since the latching protrusion 310 is located on the left, right, or rear sides of the extension arm 300, the operator only needs to insert their finger into the front end of the gap. With the palm facing down, the operator pulls the extended end of the extension arm 300 towards themselves using their index finger and other fingers, causing it to bend outwards and deform, thereby moving the latch 310 forward to disengage from the latching part. After the filter cover 200 is separated from the top plate 110, the upwardly protruding extension arm 300 and the area of ​​the filter cover 200 located in front of the extension arm 300 can form a handle for the operator to grip. Specifically, the operator can use their thumb and other fingers to grasp the front side of the filter cover 200 and the rear side of the extended end of the extension arm 300 with the palm facing down, thereby easily gripping the filter cover 200 and pulling it outwards from the gap, thus achieving convenient disassembly of the filter cover 200 from the top plate 110.

[0031] Similarly, during installation, the operator can use their thumb and other fingers to grasp the front side of the filter cover 200 and the rear side of the extended end of the extension arm 300 to grip the filter cover 200. At this time, the operator's grip is on the front edge of the filter cover 200, while the rest of the area is on the outside of the operator's hand. The operator only needs to move their hand to the front end of the gap to insert the filter cover 200 into the gap, and can clearly see the engagement of the locking structure. This reduces the need for the operator's arm to reach into the gap without clearly seeing the engagement, thus improving the ease of installation of the filter cover 200. Furthermore, because the operator grips the filter cover 200... During the process, a forward gripping force is applied to the extended section 330 of the extension arm 300. The extension arm 300 deforms forward under the force, causing the locking protrusion 310 to move forward. As the operator grips the filter cover 200 and places it on the top plate 110, the extension arm 300 is simultaneously deformed to move the locking protrusion 310 to avoid interference with the locking part. Accordingly, the filter cover 200 can be smoothly placed on the return air vent 111. Subsequently, the operator releases the grip on the extension arm 300. Under its own elastic recovery, the extension arm 300 deforms backward and causes the locking protrusion 310 to lock backward onto the locking part, realizing the automatic locking and engagement of the locking protrusion 310 and the locking part, thereby conveniently completing the installation operation of the filter cover 200.

[0032] During the disassembly and assembly process, the user's actions of grasping the extended end of the extension arm 300 and pulling it toward the user, as well as the actions of grasping the entire filter cover 200, conform to the most convenient and comfortable grasping and pulling operation for humans, thereby further improving the ease of operation of the snap-fit ​​structure and the ease of disassembling and assembling the filter cover 200.

[0033] Optionally, in this embodiment, as Figure 5 and Figure 8As shown, the front edge region is provided with a receiving hole 211. The extension arm 300 includes a protruding section 330 and an upward-opening U-shaped arm section 320. The two arm sections of the U-shaped arm section 320 are a first arm section 321 and a second arm section 322, which are arranged in the front-rear direction. The top end of the first arm section 321 is connected to the area of ​​the front edge region located in front of the receiving hole 211, and the bottom end of the protruding section 330 is connected to the top end of the second arm section 322 and extends upward out of the receiving hole 211. On the one hand, the extension arm 300 adopts a U-shaped structure, and its U-shaped arm segment 320 can greatly increase the elastic deformation capability of the extension segment 330 in the front-back direction, thereby improving the convenience of the extension arm 300 in driving the latching protrusion 310 to disengage from or avoid the locking part and the firmness of the latching protrusion 310 in locking the locking part; at the same time, the extension segment 330 can approximately achieve translational deformation in the front-back direction, thereby ensuring the locking protrusion 310 and the locking part to cooperate and lock in the front-back direction, reducing the possibility that the extension arm 300 only includes a straight arm segment, and when the straight arm segment rotates back and forth, it drives the latching protrusion 310 to move back and forth while also moving up and down, which may lead to interference or loosening between the latching protrusion 310 and the locking part. On the other hand, a receiving hole 211 is provided in the front edge area of ​​the filter cover 200. The extension arm 300 is housed in the receiving hole 211, with its extension section 330 extending upward and its U-shaped arm section 320 extending downward. Based on the setting of the extension arm 300, the receiving hole 211 forms a closed ring, which reduces the impact on the strength of the front edge area of ​​the filter cover 200, ensuring the overall strength of the filter cover 200 and maintaining the neatness of the outer periphery of the filter cover 200.

[0034] Specifically, when the filter cover 200 is connected to the top plate 110 and the height of the gap between them is less than the height of the U-shaped arm section 320 protruding downwards from the filter cover 200, such as Figure 6 As shown, clearance holes 115 can be provided in the corresponding areas of the top plate 110 and the U-shaped boom section 320 to allow the U-shaped boom section 320 to extend downward.

[0035] In this embodiment, the extension arm 300 extends upward from the filter cover 200, and all or part of the top section of the arm section tilts upward and backward to form an anti-slip handle 331. The top section of the extension arm 300 tilts upward and backward to form the anti-slip handle 331. The anti-slip handle 331 and the second arm section 322 form a locking groove on the rear side. When the operator grips the extension arm 300, he can insert his fingers into the locking groove, thereby applying a stable forward and upward pulling force to the anti-slip handle 331, reducing the occurrence of slippage during the gripping and pulling process of the filter cover 200.

[0036] Specifically, the extended section 330 can tilt backward as a whole to form an anti-slip handle 331; such as Figure 8 As shown, the extension section 330 may also include, from bottom to top, a connecting section 332 and an anti-slip handle 331 located on the upper part of the connecting section 332.

[0037] Optionally, in this embodiment, as Figure 2 As shown, the anti-slip handle 331 is located above the locking part. The locking protrusion 310 is located below the anti-slip handle 331. After the locking protrusion 310 engages with the locking part, the entire anti-slip handle 331 is higher than the locking part. Therefore, the locking part will not interfere with the anti-slip handle 331, thus ensuring the effectiveness of the anti-slip handle 331 and enabling the operator to effectively grip and apply force to the anti-slip handle 331.

[0038] Specifically, in this embodiment, as Figure 4 and Figure 5 As shown, at least one end of the second arm segment 322 protrudes relative to the extension segment 330 in the left-right direction to form a locking protrusion 310. This is one specific form when the locking protrusion 310 is located on the left and right sides of the extension arm 300. In this form, it is only necessary to make the width of the second arm segment 322 in the left-right direction greater than that of the extension segment 330 to form the locking protrusion 310. There is no need to set the locking protrusion 310 on the extension arm 300 separately. The structure is simple and the functionality is strong. Preferably, both the left and right ends of the second arm segment 322 protrude from the extension segment 330 to form the locking protrusion 310. Correspondingly, the number of locking parts on the top plate 110 is also two and corresponds one-to-one with the two locking protrusions 310. After the two locking protrusions 310 and the two locking parts are engaged, the extension arm 300 can be fixed on the left and right sides, thereby improving the connection between the extension arm 300 and the top plate 110. Specifically, the first arm segment 321, the second arm segment 322, and the extension segment 330 can be integrally formed to improve the connection strength and stability between the three, and to improve the processing convenience of the extension arm 300 and the latch 310.

[0039] In addition to being located on the left and right sides of the extension arm 300 in the manner described above, in this embodiment, as shown... Figure 1 and Figure 2 As shown, the locking protrusion 310 can also be positioned in the middle of the rear side wall of the extension arm 300. When the operator grips the extension section 330 of the extension arm 300, they generally apply force to the middle area of ​​the extension section 330 in the left-right direction. The deformation of the middle area of ​​the extension section 330 is the greatest, which in turn causes the locking protrusion 310 to move the greatest distance back and forth. This ensures that the locking protrusion 310 can effectively disengage from the locking part during disassembly and that the locking protrusion 310 can effectively avoid interference with the locking part during installation. This ensures the smooth disassembly and assembly of the filter cover 200 and reduces the impact of the small deformation of the area where the locking protrusion 310 is located at the left and right ends of the extension arm 300 during disassembly and assembly. This reduces the occurrence of situations where the back-and-forth movement of the locking protrusion 310 is small and interferes with the locking part, making it impossible to disengage or causing a large degree of interference and difficulty in assembly during installation.

[0040] Specifically, in this embodiment, the width of the extension arm 300 in the left-right direction ranges from 5cm to 10cm, and the extension arm 300 is provided with reinforcing ribs extending in the left-right direction. The width of the extension arm 300 is greater than the width of the operator's three middle fingers when held together, thereby ensuring that the operator uses at least the aforementioned three fingers to grip and apply force to the extension arm 300; at the same time, the setting of the reinforcing ribs can improve the strength of the extension arm 300 in the left-right direction, so that when the extension arm 300 is pulled by the operator, its entire area in the left-right direction can achieve synchronous deformation in the front-back direction under the transmission action of the reinforcing ribs, thereby ensuring the effectiveness of the disengagement or avoidance of the latching protrusion 310 from the latching part.

[0041] Specifically, in this embodiment, as Figures 4-6 As shown, a support rib 120 can be provided on the top of the top plate 110, and a snap-fit ​​ear 130 is provided at the top of the support rib 120. The snap-fit ​​ear 130 extends forward as a snap-fit ​​part. The support rib 120 can strengthen the corresponding area of ​​the top plate 110. Especially when the top plate 110 is provided with a clearance hole 115, the support rib 120 can surround the rear edge of the clearance hole 115 to improve the strength of the area of ​​the top plate 110 and ensure the stability of the snap-fit ​​engagement between the snap-fit ​​ear 130 and the snap-fit ​​protrusion 310. Specifically, the snap-fit ​​protrusion 310 can be snapped into the lower part of the snap-fit ​​ear 130 from front to back, thereby realizing the upward and backward snap-fit ​​limitation of the snap-fit ​​ear 130 on the snap-fit ​​protrusion 310. Figure 4 As shown, the support rib 120 can be U-shaped and surrounded on the left, rear and right edges of the clearance hole 115. The left and right corners of the rear rib section of the support rib 120 are provided with forward-extending locking ears 130. The two locking ears 130 can be matched with the two locking protrusions 310 located on the left and right sides of the extension arm 300.

[0042] Similarly, the latching ear 130 can also extend upwards, and the latching ear 130 is provided with a first latching hole 131 serving as a latching part. In use, the latching protrusion 310 can be inserted into the first latching hole 131 from front to back, thereby achieving the latching and limiting of the first latching hole 131 on the latching protrusion 310 upwards, downwards, leftwards, rightwards, and backwards. Figure 2 As shown, the support rib 120 can be U-shaped and surrounded on the left, rear and right edges of the clearance hole 115. The middle part of the rear rib section of the support rib 120 is provided with an upwardly extending locking ear 130. The locking ear 130 is provided with a first locking hole 131, which can engage with the locking protrusion 310 located on the rear side of the extension arm 300.

[0043] In this embodiment, as Figure 7 As shown, the rear end face of the filter cover 200 is provided with a rearwardly extending buckle 400, such as... Figure 6As shown, the top plate 110 has a connector in the area behind the return air vent 111, and the snap fastener 400 is inserted into the connector from front to back. The snap fastener 400 can cooperate with the extension arm 300 and the latch 310 to connect the filter cover 200 to the top plate 110. During installation, the operator can grasp the extended arm of the extension arm 300 and the front end of the filter cover 200 and insert the filter cover 200 into the gap between the top plate 110 and the roof from front to back, while simultaneously connecting the snap fastener 400 to the connector from front to back. Then, using the connector of the snap fastener 400 as a fulcrum, the front end of the filter cover 200 is rotated downwards until the filter cover 200 is engaged with the roof. When the top plate 110 contacts the filter cover 200, the extension arm 300 is released. The extension arm 300 drives the locking protrusion 310 to return to its original position and engage with the locking part, thus completing the installation of the filter cover 200. Similarly, during disassembly, the operator can grasp the extended arm of the extension arm 300 and pull the locking protrusion 310 forward to disengage it from the locking part, lift the front end of the filter cover 200 upward, and pull the entire filter cover 200 outward, thereby disengaging the buckle 400 from the locking part and completing the disassembly of the filter cover 200. The engagement of the buckle 400 and the locking part, without adding any steps to the installation or disassembly of the filter cover 200, can limit the rear end of the filter cover 200, thus effectively improving the firmness and stability of the filter cover 200 installed on the top plate 110 while ensuring the ease of installation and disassembly.

[0044] Specifically, in this embodiment, as Figure 6 As shown, the top plate 110 is provided with a limiting groove 112 surrounding the return air inlet 111. The bottom of the groove section of the limiting groove 112 located behind the return air inlet 111 is provided with a guide channel 113. The guide channel 113 extends through the bottom of the groove in the front-to-back direction and matches the snap fastener 400. Figure 5As shown, the filter cover 200 is embedded in the limiting groove 112, and the buckle 400 is located below the filter cover 200 and inserted into the plate of the top plate 110 located behind the guide channel 113. When installing the filter cover 200, the extended section 330 of the extension arm 300 and the front end of the filter cover 200 are grasped and inserted into the gap between the top plate 110 and the roof. The buckle 400 is aligned with the guide channel 113 and inserted into the plate of the top plate 110 located behind the guide channel 113 under the guidance of the guide channel 113. Then, the front end of the filter cover 200 is rotated downward until the filter cover 200 is embedded in the limiting groove 112. The extension arm 300 is released, and the locking protrusion 310 returns to the locking part, thereby realizing the installation of the filter cover 200. The guide channel 113 guides and limits the insertion of the buckle 400, improving the positional accuracy of the filter cover 200 on the top plate 110 and ensuring effective cooperation between the latching protrusion 310 and the latching part. The guide channel 113 allows the plate behind the top plate 110 to serve as the insertion part, eliminating the need for an additional insertion part and improving the ease of processing and functionality of the top plate 110. The limiting groove 112 limits the front, back, left, and right sides of the filter cover 200 on the top plate 110, further improving the positional accuracy of the filter cover 200 on the top plate 110 and ensuring effective cooperation between the latching protrusion 310 and the latching part, and between the buckle 400 and the insertion part. It also reduces the height of the filter cover 200 protruding from the top plate 110, improving the compactness of the air conditioner.

[0045] Optionally, in this embodiment, as Figure 7 As shown, a buckle 500 is provided at the bottom of the front edge area. The buckle 500 includes a snap-fit ​​arm 510 connected to the front edge area and extending downward, and a snap-fit ​​connector 520 provided on one side of the snap-fit ​​arm 510. A second snap hole 114 is provided in the area of ​​the top plate 110 in front of the return air vent 111. The snap-fit ​​arm 510 is inserted into the second snap hole 114, and the snap-fit ​​connector 520 abuts against the bottom end face of the second snap hole 114. When the filter cover 200 needs to be disassembled, the above disassembly operation is still used. When rotating the front end of the filter cover 200 upward, the extension arm 300 needs to be lifted forcefully so that the snap connector 520 is disengaged from the second snap hole 114 under the guidance of its guide slope, thereby unlocking the buckle 500 from the second snap hole 114. When the filter cover 200 needs to be installed, the above installation operation is still used. When rotating the front end of the filter cover 200 downward, the snap connector 520 needs to be pressed forcefully so that the snap arm 510 is deformed under the compression of the second snap hole 114 until the snap connector 520 reaches below the second snap hole 114 and is snapped into the bottom end face of the second snap hole 114 under the restoring action of the snap arm 510, thereby achieving a rigid snap connection between the buckle 500 and the second snap hole 114. Without adding disassembly and assembly steps, the connection firmness between the filter cover 200 and the top plate 110 is further improved.

[0046] The first snap-fit ​​structure formed by the extension arm 300, the snap protrusion 310, and the snap-fit ​​part, as well as the second snap-fit ​​structure formed by the buckle 500 and the second snap hole 114, are all located in the front edge area of ​​the filter cover 200. The first snap-fit ​​structure and the second snap-fit ​​structure can be arranged at intervals along the left and right directions of the filter cover 200 to fix the entire front area of ​​the filter cover 200. The setting of the first snap-fit ​​structure can reduce the number of the second snap-fit ​​structure. On the basis of ensuring the firmness of the connection between the filter cover 200 and the top plate 110, the number of rigid buckle 500 connections is reduced, and the ease of disassembly and assembly of the filter cover 200 is improved.

[0047] Specifically, such as Figure 8 As shown, the filter cover 200 may include a frame and a support strip connected within the frame, wherein the receiving hole 211 and the extension arm 300 are both provided on the front frame strip 210 of the frame, and the buckle 400 is provided on the rear frame strip of the frame.

[0048] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner, characterized in that, The device includes a housing (100) and a filter cover (200). The top plate (110) of the housing (100) is provided with a return air vent (111), and the area of ​​the top plate (110) in front of the return air vent (111) is provided with a snap-fit ​​part. The front edge area of ​​the filter cover (200) is provided with an upwardly extending arm (300), and the area of ​​the extending arm (300) different from the front side is provided with a snap-fit ​​protrusion (310). The filter cover (200) covers the return air vent (111), and the snap-fit ​​protrusion (310) engages with the snap-fit ​​part from front to back. The front edge region is provided with a receiving hole (211), and the extension arm (300) includes a protruding section (330) and an upward-opening U-shaped arm section (320). The two arm sections of the U-shaped arm section (320) are a first arm section (321) and a second arm section (322) and are arranged in the front-rear direction. The top end of the first arm section (321) is connected to the area of ​​the front edge region located in front of the receiving hole (211), and the bottom end of the protruding section (330) is connected to the top end of the second arm section (322) and extends upward out of the receiving hole (211).

2. The air conditioner according to claim 1, characterized in that, Along the left-right direction, at least one end of the second arm segment (322) protrudes relative to the extended segment (330) to form the latch (310).

3. The air conditioner according to claim 1, characterized in that, The protrusion (310) is located in the middle of the rear sidewall of the extension arm (300).

4. The air conditioner according to any one of claims 1-3, characterized in that, The extension arm (300) extends upward from the filter cover (200), and all or part of the top portion of the arm section tilts upward and backward to form a non-slip handle (331).

5. The air conditioner according to claim 4, characterized in that, The anti-slip handle (331) is located above the locking part.

6. The air conditioner according to any one of claims 1-3, characterized in that, The width of the extension arm (300) in the left-right direction ranges from 5cm to 10cm, and the extension arm (300) is provided with reinforcing ribs extending in the left-right direction.

7. The air conditioner according to any one of claims 1-3, characterized in that, The top plate (110) is provided with a support rib (120) at the top, and the top of the support rib (120) is provided with a snap-fit ​​ear (130). The snap-fit ​​ear (130) extends forward as the snap-fit ​​part; or the snap-fit ​​ear (130) extends upward, and the snap-fit ​​ear (130) is provided with a first snap hole (131) as the snap-fit ​​part.

8. The air conditioner according to any one of claims 1-3, characterized in that, The rear end face of the filter cover (200) is provided with a rearwardly extending buckle (400), and the top plate (110) is provided with a plug-in part in the area behind the return air vent (111), and the buckle (400) is inserted into the plug-in part from front to back.

9. The air conditioner according to claim 8, characterized in that, The top plate (110) is provided with a limiting groove (112) surrounding the return air inlet (111). The bottom of the groove section of the limiting groove (112) located behind the return air inlet (111) is provided with a guide channel (113). The guide channel (113) runs through the bottom of the groove in the front-back direction and matches the buckle (400). The filter cover (200) is embedded in the limiting groove (112). The buckle (400) is located below the filter cover (200) and is inserted into the bottom of the plate of the top plate (110) located behind the guide channel (113).

10. The air conditioner according to any one of claims 1-3, characterized in that, The bottom of the front edge area is provided with a buckle (500), the buckle (500) includes a snap-fit ​​arm (510) connected to the front edge area and extending downward, and a snap-fit ​​connector (520) provided on one side of the snap-fit ​​arm (510); the top plate (110) is provided with a second snap hole (114) in the area in front of the return air vent (111), the snap-fit ​​arm (510) is inserted into the second snap hole (114), and the snap-fit ​​connector (520) abuts against the bottom end face of the second snap hole (114).

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