Air conditioner

Abstract

The invention provides an air conditioner, and relates to the technical field of air conditioners. The air conditioner comprises a shell and a filter screen cover, an air return opening is formed in a top plate of the shell, and a clamping part is arranged in the area, located on the front side of the air return opening, of the top plate; the front edge area of the filter screen cover is provided with an extending arm extending upwards, the area, different from the front side, of the extending arm is provided with a clamping protrusion, the filter screen cover covers the air return opening, and the clamping protrusion is matched with the clamping part in a clamped mode from front to back. The filter screen cover in the air conditioner is convenient to disassemble and assemble, and the requirement for the space above the top plate is low.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0002] Air conditioners are widely used for temperature regulation in indoor environments. A filter is usually installed at the return air outlet of an existing indoor unit to filter the airflow entering the air duct, so as to reduce the blockage and damage to the air duct components caused by impurities and dust in the airflow, as well as the adverse effects on its heat exchange efficiency. A filter cover is usually installed outside the return air outlet to protect the filter and the return air outlet. When replacing the filter, the filter needs to be disassembled. However, the existing indoor unit is usually placed against the wall, especially the gap between the top plate and the roof of the wall-mounted unit is small, which makes it inconvenient to disassemble the filter. Summary of the invention

[0003] The purpose of the present invention includes providing an air conditioner to solve the technical problem of inconvenient assembly and disassembly of the filter cover in the prior art.

[0004] In order to solve the above problems, the present invention provides an air conditioner, including a shell and a filter cover, the top plate of the shell is provided with a return air outlet, and the area of ​​the top plate located in front of the return air outlet is provided with a clamping portion; the front edge area of ​​the filter cover is provided with an extension arm extending upward, and the area of ​​the extension arm different from the front side is provided with a clamping protrusion, the filter cover is arranged on the return air outlet, and the clamping protrusion is clamped and cooperated with the clamping portion from front to back.

[0005] When the air conditioner provided by the present invention is in normal use, the clamping protrusion is clamped to the clamping part from front to back to improve the firmness of the filter cover connected to the top plate. When the filter cover needs to be disassembled for operations such as cleaning the filter, since the clamping structure composed of the extension arm, the clamping protrusion and the clamping part of the present application is located in the front edge area of ​​the top plate, the operator can conveniently, comprehensively and clearly see the clamping structure from the outside for disassembly and assembly operations. During the specific disassembly operation, the operator does not need to extend his arm into the gap between the top plate and the roof, thereby reducing the requirement for the height of the gap. At the same time, since the clamping protrusion is arranged on the left and right sides or the rear side of the extension arm, the operator can easily, comprehensively and clearly see the clamping structure from the outside for disassembly and assembly operations. The operator only needs to insert a finger into the front end of the gap, and pull the extended end of the extension arm toward the user's own direction with the index finger or the like with the palm of the front hand downward, so that it bends outward and deforms to drive the clamping protrusion to move forward and disengage from the clamping cooperation with the clamping part; after the filter cover is separated from the top plate, the upwardly protruding extension arm and the area of ​​the filter cover located on the front side of the extension arm can form a handle for the operator to grasp. Specifically, the operator can grasp the front side of the filter cover and the rear side of the extended end of the extension arm with the thumb and other fingers with the palm of the front hand downward, so as to conveniently grasp the filter cover and pull it out of the gap, so as to realize convenient disassembly of the filter cover and the top plate. Similarly, the installation operation of the filter cover can be completed conveniently, and in the above-mentioned disassembly process, the user's action of grasping the extended end of the extension arm and pulling it toward the user's own direction and the action of grasping the entire filter cover are both in line with the most convenient and comfortable grasping and pulling operation of humans, thereby further improving the convenience of operating the clamping structure and the convenience of disassembling the filter cover.

[0006] Optionally, the front edge area is provided with a accommodating hole, and the extension arm includes a protruding section and a U-shaped arm section opening upward, the two arm sections of the U-shaped arm section are respectively a first arm section and a second arm section and are arranged along the front-to-back direction, wherein the top end of the first arm section is connected to the area of ​​the front edge area located in front of the accommodating hole, and the bottom end of the protruding section is connected to the top end of the second arm section and protrudes upward from the accommodating hole.

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

[0008] Optionally, the latching protrusion is located at a middle position of the rear side wall of the extension arm.

[0009] Optionally, the extension arm extends upward from the arm section of the filter cover, and the entire arm section or a part of the arm section including the top end is tilted upward and backward from bottom to form an anti-slip handle.

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

[0011] Optionally, the extension arm has a width in the left-right direction ranging from 5 cm to 10 cm, and the extension arm is provided with a reinforcing rib extending in the left-right direction.

[0012] Optionally, a support rib is provided on the top of the top plate, a snap-in ear is provided at the top end of the support rib, and the snap-in ear extends forward as the snap-in portion; or the snap-in ear extends upward, and the snap-in ear is provided with a first snap-in hole as the snap-in portion.

[0013] Optionally, a rear end surface of the filter cover is provided with a buckle extending backwards, and an insertion portion is provided in an area of ​​the top plate located at the rear side of the return air outlet, and the buckle is inserted into the insertion portion from front to rear.

[0014] Optionally, the top plate is provided with a limiting groove surrounding the return air outlet, and the bottom of the groove section of the limiting groove located at the rear side of the return air outlet is provided with a guide channel, and the guide channel passes through the groove bottom in the front-to-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 plugged into the bottom of the plate body of the top plate located at the rear side of the guide channel.

[0015] Optionally, a clip is provided at the bottom of the front edge area, and the clip includes a clip arm connected to the front edge area and extending downward, and a clip joint provided on one side of the clip arm; a second clip hole is provided in the area of ​​the top plate located in front of the return air outlet, the clip arm is inserted into the second clip hole, and the clip joint abuts against the bottom end surface of the second clip hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

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

[0018] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0019] Figure 3 An axonometric 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 partial enlarged view of B in the middle;

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

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

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

[0024] Figure 8 for Figure 2 Axonometric cutaway view of the center filter cover.

[0025] Description of reference numerals:

[0026] 100-housing; 110-top plate; 111-return air outlet; 112-limiting groove; 113-guide channel; 114-second clamping hole; 115-avoidance hole; 120-support rib; 130-clamping ear; 131-first clamping hole; 200-filter cover; 210-front frame bar; 211-accommodating hole; 300-extension arm; 310-clamping protrusion; 320-U-shaped arm section; 321-first arm section; 322-second arm section; 330-extending section; 331-anti-slip handle; 332-connecting section; 400-buckle; 500-clamp; 510-clamping arm; 520-clamping joint. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] This embodiment provides an air conditioner, such as Figure 1-Figure 4 As shown, it includes a shell 100 and a filter cover 200, the top plate 110 of the shell 100 is provided with a return air outlet 111, and the area of ​​the top plate 110 located in front of the return air outlet 111 is provided with a snap-fitting portion; the front edge area of ​​the filter cover 200 is provided with an extending arm 300 extending upward, and the area of ​​the extending arm 300 different from the front side is provided with a snap-fitting protrusion 310, the filter cover 200 is covered on the return air outlet 111, and the snap-fitting protrusion 310 is snap-fitted with the snap-fitting portion from front to back.

[0029] In the air conditioner provided in the present embodiment, one end of the extension arm 300 is fixedly connected to the filter cover 200, and the other end extends upward and protrudes from the filter cover 200. The extension arm 300 has deformation elasticity along the front-to-back direction to drive the clamping protrusion 310 to move within a certain range; when the air conditioner is in normal use, the filter cover 200 is arranged on the return air outlet 111 to limit the filter at the return air outlet 111 and to block and protect the return air outlet 111. The clamping protrusion 310 is clamped to the clamping 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 forward elastic deformation and applies a backward elastic force to the clamping protrusion 310 to improve the clamping firmness of the clamping protrusion 310 and the clamping 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 a wall and the gap between their top plate 110 and the roof is small. When the filter cover 200 needs to be disassembled for operations such as cleaning the filter, since the clamping structure composed of the extension arm 300, the clamping protrusion 310 and the clamping part of the present application is located in the front edge area of ​​the top plate 110, the operator can conveniently, comprehensively and clearly see the clamping structure from the outside for the purpose of disassembly and assembly. During the specific disassembly operation, the operator does not need to extend his arm into the gap between the top plate 110 and the roof, thereby reducing the requirement for the height of the gap. At the same time, since the clamping protrusion 310 is arranged on the left and right sides or the rear side of the extension arm 300, the operator only needs to extend his fingers into the front end of the gap. The operator can use the thumb and other fingers to grasp the front side of the filter cover 200 and the rear side of the protruding end of the extension arm 300 respectively, thereby conveniently grasping the filter cover 200 and pulling it out from the gap, thereby realizing convenient disassembly of the filter cover 200 and the top plate 110.

[0031] Similarly, during the installation operation, the operator can use the 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 respectively to grasp the filter cover 200. At this time, the front edge area of ​​the filter cover 200 close to the operator is grasped by the operator, and the other approximately entire area is located on the outside of the operator's hand. The operator's hand only needs to move to the front end of the gap to insert the filter cover 200 forward into the gap, and can clearly see the matching state of the snap-fit ​​structure, thereby reducing the situation where the operator's arm needs to be extended into the gap and cannot clearly see the matching state of the snap-fit ​​structure, thereby correspondingly improving the convenience of installation of the filter cover 200; at the same time, because the operator grasps the filter cover 200 During the process, a forward gripping force is applied to the protruding section 330 of the extension arm 300. The extension arm 300 is deformed forward under the force, driving the latch 310 to move forward. When the operator grasps the filter cover 200 and covers it on the top plate 110, the extension arm 300 is driven to deform to drive the latch 310 to move to avoid interference with the latching part. Accordingly, the filter cover 200 can be smoothly covered on the return air outlet 111. Then the operator releases his grip on the extension arm 300. The extension arm 300 recovers its deformation backward under the action of its own elastic recovery, driving the latch 310 to latch backward on the latching part, thereby realizing automatic latching cooperation between the latch 310 and the latching part, thereby conveniently completing the installation operation of the filter cover 200.

[0032] Among them, during the above-mentioned disassembly and assembly process, the user's action of grasping the protruding end of the extension arm 300 and pulling it toward the user himself, as well as the action of grasping the entire filter cover 200 are both in line with the most convenient and comfortable grasping and pulling operation for humans, thereby further improving the operational convenience of the snap-on structure and the operational convenience of disassembling and assembling the filter cover 200.

[0033] Optionally, in this embodiment, if Figure 5 and Figure 8As shown, a receiving hole 211 is provided in the front edge area, and the extension arm 300 includes a protruding section 330 and a U-shaped arm section 320 opening upward, wherein the two arm sections of the U-shaped arm section 320 are respectively a first arm section 321 and a second arm section 322 and are arranged along the front-to-back direction, wherein the top end of the first arm section 321 is connected to the area of ​​the front edge area 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 protrudes upward from the receiving hole 211. On the one hand, the extension arm 300 adopts a U-shaped structure, and its U-shaped arm section 320 can greatly increase the elastic deformation capacity of the extension section 330 along the front-to-back direction, thereby improving the convenience of the extension arm 300 in driving the latch 310 to disengage from or avoid the latching part and the firmness of the latch 310 being latched in the latching part; at the same time, the extension section 330 can approximately achieve translational deformation along the front-to-back direction, thereby ensuring the mating latch 310 and the latching part along the front-to-back direction. The extension arm 300 only includes a straight arm section. When the straight arm section rotates forward and backward, it drives the latch 310 to move forward and backward while also moving up and down, which may cause interference or loosening between the latch 310 and the latching part. On the other hand, a accommodating hole 211 is set in the front edge area of ​​the filter cover 200, and the extension arm 300 is accommodated in the accommodating hole 211, and its extending section 330 extends upward, and the U-shaped arm section 320 extends downward. On the basis of realizing the setting of the extension arm 300, the accommodating hole 211 is a closed ring, which reduces the influence on the strength of the front edge area of ​​the filter cover 200, can ensure the overall strength of the filter cover 200 and can maintain the neatness of the periphery of the filter cover 200.

[0034] When the filter cover 200 is connected to the top plate 110 and the height of the gap between the two is less than the height of the U-shaped arm section 320 protruding downward from the filter cover 200, as shown in FIG. Figure 6 As shown, a avoidance hole 115 may be provided in the area corresponding to the top plate 110 and the U-shaped arm section 320 to allow the U-shaped arm section 320 to extend downward.

[0035] In this embodiment, among the arm sections of the extension arm 300 extending upward from the filter cover 200, all or a part of the arm sections including the top are tilted from bottom to top and backward to form an anti-slip handle 331. The top section of the extension arm 300 is tilted from bottom to top and backward to form an anti-slip handle 331, and the anti-slip handle 331 and the second arm section 322 form a buckle groove at the rear side. When the operator grasps the extension arm 300, the operator can put his fingers into the buckle groove, thereby applying a stable pulling force forward and upward to the anti-slip handle 331, thereby reducing the occurrence of easy slipping of the filter cover 200 during the grasping and pulling process.

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

[0037] Optionally, in this embodiment, if Figure 2 As shown, the anti-slip handle 331 is located above the clamping portion. The clamping protrusion 310 is located below the anti-slip handle 331. After the clamping protrusion 310 is clamped and matched with the clamping portion, the entire anti-slip handle 331 is higher than the clamping portion, and the clamping portion will not interfere with the anti-slip handle 331, thereby ensuring the effectiveness of the anti-slip handle 331, so that the operator can effectively grasp and apply force to the anti-slip handle 331.

[0038] Specifically, in this embodiment, Figure 4 and Figure 5 As shown, along the left-right direction, at least one end of the second arm section 322 protrudes relative to the extension section 330 to form a clamping protrusion 310. This is one of the specific forms when the clamping protrusion 310 is located on the left and right sides of the extension arm 300. In this form, the clamping protrusion 310 can be formed by only setting the width of the second arm section 322 along the left-right direction to be greater than the extension section 330, and there is no need to set the clamping protrusion 310 on the extension arm 300. The structure is simple and the functionality is strong; preferably, both the left and right ends of the second arm section 322 protrude from the extension section 330 to form the clamping protrusion 310, and accordingly, the number of the clamping parts on the top plate 110 is also two and corresponds to the two clamping protrusions 310 one by one. After the two clamping protrusions 310 cooperate with the two clamping parts, the extension arm 300 can be fixed on the left and right sides, thereby improving the connection firmness 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 may be integrally formed to improve the connection firmness and stability among the three, and to improve the processing convenience of the extension arm 300 and the locking protrusion 310 .

[0039] In addition to the above-mentioned form of the protrusion 310 being located on the left and right sides of the extension arm 300, in this embodiment, Figure 1 and Figure 2 As shown, the clamping protrusion 310 can also be arranged to be located in the middle of the rear side wall of the extension arm 300. When the operator grasps the extension section 330 of the extension arm 300, he generally grasps and applies force to the middle area of ​​the extension section 330 in the left and right directions, and the deformation degree caused by the force in the middle area of ​​the extension section 330 is the largest, and the displacement of the clamping protrusion 310 to move forward and backward is the largest accordingly, thereby ensuring that the clamping protrusion 310 can effectively break away from the clamping connection with the clamping part during the disassembly process and that the clamping protrusion 310 can effectively avoid interference with the clamping part during the installation process, and correspondingly ensuring the smoothness of the disassembly and assembly of the filter cover 200, and reducing the influence of the small deformation degree of the clamping protrusion 310 at the left and right ends of the extension arm 300 during the disassembly and assembly process, resulting in a small forward and backward movement stroke of the clamping protrusion 310 and interference with the clamping part, which makes it impossible to release the clamping fit between the two or the interference degree is large during installation, resulting in a large assembly difficulty.

[0040] Specifically, in this embodiment, the width of the extension arm 300 along the left-right direction ranges from 5 cm to 10 cm, and the extension arm 300 is provided with a reinforcing rib extending along the left-right direction. The width of the extension arm 300 is greater than the width of the three middle fingers of the operator when they are put together, so as to ensure that the operator uses at least the three fingers to grip the extension arm 300; at the same time, the provision of the reinforcing rib can improve the strength of the extension arm 300 along the left-right direction, so that when the extension arm 300 is pulled by the operator, the entire area of ​​the extension arm 300 in the left-right direction can achieve synchronous deformation along the front-back direction under the transmission effect of the reinforcing rib, so as to ensure the effectiveness of the disengagement or avoidance of the clamping protrusion 310 from the clamping portion.

[0041] Specifically, in this embodiment, Figure 4-Figure 6 As shown, a support rib 120 can be provided on the top of the top plate 110, and a snap-in ear 130 is provided on the top end of the support rib 120, and the snap-in ear 130 extends forward as a snap-in portion. The support rib 120 can strengthen the corresponding area of ​​the top plate 110, especially when the top plate 110 is provided with an avoidance hole 115, the support rib 120 can be arranged around the rear edge of the avoidance hole 115 to improve the strength of this area of ​​the top plate 110, and ensure the snap-in fit stability between the snap-in ear 130 and the snap-in protrusion 310; specifically, the snap-in protrusion 310 can be snapped into the bottom of the snap-in ear 130 from front to back, so as to achieve the snap-in limit of the snap-in ear 130 on the snap-in protrusion 310 upward and backward. Figure 4 As shown, the support rib 120 can be U-shaped and arranged around the left, rear and right edges of the avoidance hole 115. The left and right corners of the rear rib section of the support rib 120 are provided with forward extending snap-in ears 130. The two snap-in ears 130 can be matched one by one with the two snap-in protrusions 310 located on the left and right sides of the extension arm 300.

[0042] Similarly, the snap-in ear 130 can also extend upward, and the snap-in ear 130 is provided with a first snap-in hole 131 as a snap-in portion. When in use, the snap-in protrusion 310 can be inserted into the first snap-in hole 131 from front to back, so that the first snap-in hole 131 can limit the snap-in position of the snap-in protrusion 310 upward, downward, left, right and rearward. Figure 2 As shown, the support rib 120 can be U-shaped and arranged around the left, rear and right edges of the avoidance hole 115. An upwardly extending snap-in ear 130 is provided in the middle of the rear rib section of the support rib 120. The snap-in ear 130 is provided with a first snap-in hole 131. The first snap-in hole 131 can be snap-fitted with the snap-in protrusion 310 located on the rear side of the extension arm 300.

[0043] In this embodiment, Figure 7 As shown, the rear end surface of the filter cover 200 is provided with a buckle 400 extending backwards, as shown in FIG. Figure 6As shown, the top plate 110 is provided with a plug-in portion in the area behind the return air outlet 111, and the plug-in buckle 400 is plugged into the plug-in portion from front to back. The plug-in buckle 400 can cooperate with the extension arm 300 and the clamping protrusion 310 to connect the filter cover 200 to the top plate 110. During installation, the operator can grasp the arm section 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 completing the plug-in of the plug-in buckle 400 from front to back with the plug-in portion, and then use the plug-in position of the plug-in buckle 400 as a fulcrum to rotate the front end of the filter cover 200 downward until the filter cover 200 is connected to the roof. The top plate 110 is contacted, the extension arm 300 is released, and the extension arm 300 drives the clamping protrusion 310 to return to the position and clamp the clamping part, thereby completing the installation of the filter cover 200; similarly, when disassembling, the operator can grasp the arm section of the extension arm 300 to pull the clamping protrusion 310 forward to disengage the clamping part, lift the front end of the filter cover 200 upward, and pull out the entire filter cover 200 to realize the separation of the plug buckle 400 from the plug-in part, thereby completing the disassembly of the filter cover 200. The plug-in cooperation between the plug buckle 400 and the plug-in part can limit the rear end of the filter cover 200 without adding the steps for disassembling and assembling the filter cover 200, thereby effectively improving the firmness and stability of the filter cover 200 installed on the top plate 110 while ensuring the convenience of disassembling and assembling the filter cover 200.

[0044] Specifically, in this embodiment, Figure 6 As shown, the top plate 110 is provided with a limiting groove 112 surrounding the return air outlet 111, and the groove bottom of the limiting groove 112 located at the rear side of the return air outlet 111 is provided with a guide channel 113, and the guide channel 113 passes through the groove bottom along the front-to-back direction and matches with the buckle 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 plugged into the bottom of the plate body of the top plate 110 located at the rear side of the guide channel 113. When installing the filter cover 200, the extension section 330 of the extension arm 300 and the front end of the filter cover 200 are grasped and inserted backward into the gap between the top plate 110 and the roof, and the buckle 400 is aligned with the guide channel 113 and inserted and plugged into the bottom of the plate body of the top plate 110 located at the rear side of 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, and the extension arm 300 is released, and the clamping protrusion 310 is returned to the rear to be clamped in the clamping part, thereby achieving the installation of the filter cover 200. Among them, the setting of the guide channel 113 can guide and limit the insertion of the buckle 400, so as to improve the position accuracy of the filter cover 200 installed on the top plate 110, and ensure the effective cooperation between the protrusion 310 and the snap-on part; the setting of the guide channel 113 can make the plate body of the top plate 110 located on the rear side of the guide channel 113 serve as the plug-in part, without the need to additionally set up the plug-in part, thereby improving the convenience and functionality of the processing of the top plate 110; the setting of the limiting groove 112 can limit the front, rear, left and right of the filter cover 200 installed on the top plate 110, so as to further improve the position accuracy of the filter cover 200 installed on the top plate 110, and ensure the effective cooperation between the protrusion 310 and the snap-on part, and the buckle 400 and the plug-in part, and can also reduce the height of the filter cover 200 protruding upward from the top plate 110, thereby improving the compactness of the air conditioner.

[0045] Optionally, in this embodiment, if Figure 7 As shown, a buckle 500 is provided at the bottom of the front edge area, and the buckle 500 includes a clamping arm 510 connected to the front edge area and extending downward, and a clamping joint 520 provided on one side of the clamping arm 510; a second clamping hole 114 is provided in the area of ​​the top plate 110 located in front of the return air outlet 111, the clamping arm 510 is inserted into the second clamping hole 114, and the clamping joint 520 abuts against the bottom end surface of the second clamping hole 114. When the filter cover 200 needs to be removed, the above-mentioned disassembly operation is still used. When the front end of the filter cover 200 needs to be rotated upward, the extension arm 300 needs to be lifted up with force so that the clamping joint 520 is disengaged from the second clamping hole 114 under the guiding action of its guide slope, thereby unlocking the buckle 500 and the second clamping hole 114; when the filter cover 200 needs to be installed, the above-mentioned installation operation is still used. When the front end of the filter cover 200 needs to be rotated downward, the clamping joint 520 needs to be pressed hard so that the clamping arm 510 is deformed under the squeezing of the second clamping hole 114 until the clamping joint 520 reaches below the second clamping hole 114 and is clamped to the bottom end surface of the second clamping hole 114 under the restoring action of the clamping arm 510, thereby realizing the rigid clamping of the buckle 500 and the second clamping hole 114, and further improving the connection firmness between the filter cover 200 and the top plate 110 without increasing the disassembly and assembly steps.

[0046] Among them, the first clamping structure formed by the extension arm 300, the clamping protrusion 310 and the clamping part, and the second clamping structure formed by the clamp 500 and the second clamping hole 114 are both located in the front edge area of ​​the filter cover 200. The first clamping structure and the second clamping structure can be arranged at intervals along the left and right directions of the filter cover 200 to fix the entire area of ​​the front end of the filter cover 200. The setting of the first clamping structure can reduce the number of the second clamping structure. On the basis of ensuring the firm connection between the filter cover 200 and the top plate 110, the number of rigid clamping structures is reduced, thereby improving the convenience of disassembly and assembly of the filter cover 200.

[0047] Specifically, Figure 8 As shown, the filter cover 200 may include a frame and a support bar connected to the frame, wherein the accommodating hole 211 and the extension arm 300 are both disposed on the front frame bar 210 of the frame, and the buckle 400 is disposed on the rear frame bar of the frame.

[0048] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner, characterized in that: The invention comprises a shell (100) and a filter cover (200); the top plate (110) of the shell (100) is provided with a return air outlet (111), and the top plate (110) is provided with a clamping portion in an area located in front of the return air outlet (111); the front edge area of ​​the filter cover (200) is provided with an extension arm (300) extending upward, and the extension arm (300) is provided with a clamping protrusion (310) in an area different from the front side; the filter cover (200) is covered on the return air outlet (111), and the clamping protrusion (310) is clamped and matched with the clamping portion from front to back.

2. The air conditioner according to claim 1, characterized in that: The front edge region is provided with a receiving hole (211), and the extension arm (300) comprises a protruding section (330) and a U-shaped arm section (320) opening upward, wherein the two arm sections of the U-shaped arm section (320) are respectively a first arm section (321) and a second arm section (322) and are arranged along the front-to-back direction, wherein 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 protrudes upward from the receiving hole (211).

3. The air conditioner according to claim 2, characterized in that: Along the left-right direction, at least one end of the second arm section (322) protrudes relative to the extending section (330) to form the locking protrusion (310).

4. The air conditioner according to claim 1, characterized in that: The locking protrusion (310) is located in the middle of the rear side wall of the extension arm (300).

5. The air conditioner according to any one of claims 1 to 4, characterized in that: The extension arm (300) extends upward from the filter cover (200) in an arm section, and the entire arm section or a part of the arm section including the top end is tilted upward and backward from bottom to form an anti-slip handle (331).

6. The air conditioner according to claim 5, characterized in that: The anti-slip handle (331) is located above the clamping portion.

7. The air conditioner according to any one of claims 1 to 4, characterized in that: The width of the extension arm (300) in the left-right direction ranges from 5 cm to 10 cm, and the extension arm (300) is provided with a reinforcing rib extending in the left-right direction.

8. The air conditioner according to any one of claims 1 to 4, characterized in that: A support rib (120) is provided at the top of the top plate (110), a snap-in ear (130) is provided at the top end of the support rib (120), and the snap-in ear (130) extends forward as the snap-in portion; or the snap-in ear (130) extends upward, and the snap-in ear (130) is provided with a first snap-in hole (131) as the snap-in portion.

9. The air conditioner according to any one of claims 1 to 4, characterized in that: The rear end surface of the filter cover (200) is provided with a plug buckle (400) extending backwards, and the top plate (110) is provided with a plug-in portion in an area located at the rear side of the return air outlet (111), and the plug buckle (400) is plugged into the plug-in portion from front to rear.

10. The air conditioner according to claim 9, characterized in that: The top plate (110) is provided with a limiting groove (112) surrounding the return air outlet (111); the limiting groove (112) is provided with a guide channel (113) at the bottom of the groove section located at the rear side of the return air outlet (111); the guide channel (113) passes through the groove bottom in the front-to-back direction and matches the plug buckle (400); the filter cover (200) is embedded in the limiting groove (112); the plug buckle (400) is located below the filter cover (200) and is plugged into the bottom of the plate body of the top plate (110) located at the rear side of the guide channel (113).

11. The air conditioner according to any one of claims 1 to 4, characterized in that: A buckle (500) is provided at the bottom of the front edge area, and the buckle (500) comprises a clamping arm (510) connected to the front edge area and extending downward, and a clamping joint (520) provided on one side of the clamping arm (510); a second clamping hole (114) is provided in an area of ​​the top plate (110) located in front of the return air outlet (111), the clamping arm (510) is inserted into the second clamping hole (114), and the clamping joint (520) abuts against the bottom end surface of the second clamping hole (114).

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