Indoor unit and air conditioner

Abstract

The utility model provides an indoor unit and an air conditioner, and relates to the technical field of air conditioners. The indoor unit comprises a middle frame and a filter screen assembly. The middle frame is provided with a mounting opening, and the middle frame is convexly provided with a clamping part. The filter screen assembly comprises a filter screen framework, a filter screen and a connecting arm. The connecting arm is installed on the filter screen framework and can slide relative to the filter screen framework. The top end of the filter screen is connected with the position close to the top end of the filter screen framework, and the bottom end of the filter screen is connected with the connecting arm. And the filter screen framework and / or the connecting arm are / is provided with a clamping groove. The filter screen assembly is mounted at the mounting opening, the connecting arm is located at the first position, and the clamping part is clamped in the clamping groove. And the filter screen framework is pulled outwards, so that the clamping parts can be separated from the clamping grooves. The filter screen can be conveniently disassembled and assembled.

Description

Technical Field

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

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

[0003] Specifically, the top of the middle frame is equipped with an air inlet grille and a mounting opening at the front. Slideways are located on either side of the mounting opening. The filter is inserted through the bottom opening of the slideway between the air inlet grille and the top of the heat exchanger, with the remaining portion covering the mounting opening at the front of the heat exchanger. A slot is located at the lower edge of the mounting opening, into which the bottom end of the filter is snapped.

[0004] However, the installation method of the filter screen mentioned above requires that the filter screen needs to be bent to achieve engagement and disengagement when the filter screen is disassembled, which makes the disassembly and assembly process more troublesome. Utility Model Content

[0005] The problem solved by the utility model is that the filter screen is troublesome to disassemble and assemble.

[0006] In order to solve the above problems, the utility model provides an indoor unit and an air conditioner, which can facilitate the disassembly and assembly of the filter assembly.

[0007] In a first aspect, the present invention provides an indoor unit, the indoor unit comprising a middle frame and a filter assembly;

[0008] The middle frame is provided with a mounting opening, and the middle frame is convexly provided with a clamping portion;

[0009] The filter assembly includes a filter frame, a filter and a connecting arm;

[0010] The connecting arm is installed on the filter frame, and the connecting arm can slide relative to the filter frame;

[0011] The top of the filter is connected to the position of the filter frame near the top, and the bottom of the filter is connected to the connecting arm;

[0012] When the connecting arm slides to the first position, the connecting arm is located at the lower end of the filter frame, and the connecting arm pulls the filter to unfold so that the filter cover is located on one side of the filter frame;

[0013] When the connecting arm slides to the second position, the connecting arm is located at the top end of the filter frame, and the connecting arm pulls up the bottom end of the filter to fold the filter in half;

[0014] The filter frame and / or the connecting arm are provided with a snap-in groove;

[0015] The filter assembly is installed in the installation opening, the connecting arm is located in the first position, and the clamping portion is clamped in the clamping groove;

[0016] When the filter frame is pulled outward, the clamping portion can be released from the clamping groove.

[0017] The present invention connects the top of the filter to the top of the filter frame, movably mounts a connecting arm to the filter frame, and then connects the bottom of the filter to the connecting arm. When the filter frame slides to a first position at the bottom of the filter frame, the connecting arm can pull the filter out, so that the filter cover is located on one side of the filter frame, thereby filtering dust during use. When cleaning the filter, the connecting arm can be slid to a second position at the top of the filter frame. The connecting arm folds the bottom of the filter toward the top of the filter frame, thereby exposing the side of the filter frame where the filter is located and the side where the filter is attached to the filter frame. This prevents the filter and the filter frame from blocking each other during cleaning, thereby making cleaning of the filter assembly more convenient. A snap-in slot is provided on the filter frame and / or the connecting arm, and the snap-in portion is provided on the middle frame. When disassembling the filter assembly, the user only needs to pull the filter frame outward to release the snap-in portion from the snap-in slot, without bending the filter frame. During installation, the user can insert the filter assembly into the installation port so that the clamping portion is clamped into the clamping groove without bending the filter frame, making the assembly and disassembly of the filter assembly more convenient.

[0018] In an optional embodiment, the filter frame is provided with snap-fit ​​grooves on both sides of the width direction near the bottom;

[0019] The middle frame is provided with a first track and a second track, and a mounting opening is formed between the first track and the second track;

[0020] The lower ends of the first rail and the second rail are both provided with a clamping portion;

[0021] The filter assembly is installed between the first track and the second track, and the two clamping parts are clamped in the two clamping grooves in a one-to-one correspondence.

[0022] The present application provides snap-in grooves on both sides of the filter frame in the width direction near the bottom, and provides snap-in parts at the lower ends of the first rail and the second rail on both sides of the installation port, so that the filter assembly can be stably fixed to the middle frame.

[0023] In an optional embodiment, the clamping groove is an arc-shaped clamping groove, and the shape of the clamping portion matches the shape of the clamping groove.

[0024] In this embodiment, the snap-fitting groove is provided with an arc-shaped snap-fitting groove, so that the snap-fitting portion can be conveniently snapped into the snap-fitting groove during the process of installing the filter assembly, and the snap-fitting portion can be disengaged from the pull-fitting groove when the user removes the filter.

[0025] In an optional embodiment, there are two filter screen assemblies, two mounting openings, and the clamping portion includes a cylindrical clamping post;

[0026] The middle frame is further provided with a third track and a fourth track, the second track and the third track are arranged side by side and connected to each other, and the fourth track is arranged at intervals from the third track;

[0027] The cylindrical clamping column is arranged at a position of the middle frame corresponding to the lower end of the second track and the lower end of the third track;

[0028] Among them, one filter assembly is inserted between the first track and the second track, and the other filter assembly is inserted between the third track and the fourth track. The two clamping grooves on the adjacent sides of the two filter frames are both clamped to the cylindrical clamping column.

[0029] With the above-mentioned structural arrangement, the adjacent sides of the two filter screen frames can share a cylindrical clamping column, which facilitates manufacturing and assembly.

[0030] In an optional embodiment, the clamping groove is provided on the connecting arm, and the clamping portion is protruded outwardly on the middle frame;

[0031] The middle frame is provided with a first rail and a second rail, a mounting opening is formed between the first rail and the second rail, and a plug-in slot is provided on one side corresponding to the first rail and the second rail;

[0032] The filter frame is inserted into the plugging grooves of the first track groove and the second track groove, the clamping part is clamped in the clamping groove, and the clamping part can deform the filter frame so that the filter frame abuts against the plugging groove and is clamped.

[0033] The present application provides a snap-in slot on the connecting arm. After the filter assembly is installed in the middle frame, the snap-in portion snaps into the snap-in slot, and the snap-in portion deforms the mesh frame so that the filter frame abuts and snaps into the slot, thereby securing the connecting arm and the filter frame to the middle frame. When removing the filter assembly, because the snap-in slot is provided on the connecting arm, the user pulls the filter frame outward when removing the filter assembly. However, because the snap-in portion is locked in the snap-in slot, the connecting arm remains stationary, and only the filter frame moves outward. During the outward movement of the filter frame, the connecting arm moves relative to the filter frame from a first position to a second position, folding the filter in half. This folds the windward side of the filter inward, preventing dust from falling from the filter when the filter assembly is removed. Furthermore, when cleaning the filter assembly, the connecting arm drives the filter to unfold and fold in half, preventing the filter and the filter frame from interfering with each other, making it easier to clean the filter assembly.

[0034] In an optional embodiment, the connecting arm includes a connecting portion and sliding portions connected to both sides of the connecting portion;

[0035] The two sliding parts are provided with sliding grooves on the opposite side walls, and the two sliding parts are movably mounted on both sides of the width direction of the filter frame through the sliding grooves;

[0036] A snap-fit ​​groove is provided on one side of the two sliding parts away from the connecting part;

[0037] There are two clamping parts, one clamping part is protruded from the middle frame at the end of the first track, and the other clamping part is protruded from the middle frame at the end of the second track;

[0038] The two clamping parts are clamped in the two clamping slots in a one-to-one correspondence.

[0039] The present application is provided with two clamping parts, and clamping grooves are provided on the sliding parts on both sides of the connecting arm, so that the connecting arm and the filter frame can be stably fixed to the middle frame.

[0040] In an optional embodiment, the plug-in slot includes a first track slot segment and a second track slot segment connected in sequence, the first track slot segment is arranged close to the clamping portion, the width of the first track slot segment gradually increases toward the clamping portion, and the width of the second track slot segment corresponds to the thickness of the filter frame;

[0041] When the filter assembly is installed in the installation port, the top of the filter frame is inserted into the second track groove section by the first track groove section, the connecting arm is located below the first track groove section, and both sides of the filter in the width direction are in contact with the filter frame under the action of the side walls of the second track groove section. The filter frame is clamped against the side walls of the second track groove section under the action of the clamping part;

[0042] The filter frame is pulled outward, and when the connecting arm moves to the second position relative to the filter frame, the top end of the filter frame moves into the first track groove section, so that the filter frame and the track groove are released from the engagement.

[0043] The present application arranges the insertion slot into a first track slot section and a second track slot section, and arranges the width of the second track slot section to correspond to the thickness of the filter frame. Thus, when the filter frame is inserted into the second track slot section, the clamping portion clamps into the clamping slot of the connecting arm and applies a forward thrust to the connecting arm and the filter frame, causing the filter frame to abut against the front sidewall of the second track slot section, thereby securing the filter assembly. The first track slot section is gradually enlarged toward the mounting opening. When the end of the filter frame is pulled outward to the first track slot section, the width of the first track slot section gradually increases, allowing the filter frame and the connecting arm to move forward, thereby facilitating the clamping portion to be released from the clamping slot. The width of the second track slot section is arranged to correspond to the thickness of the filter frame, so that when the filter assembly is reinstalled in the insertion slot, the front sidewall of the second track slot section applies pressure to the filter, causing the two sides of the filter width to mate with the two sides of the filter frame width.

[0044] In an optional embodiment, a first limiting boss is provided on the top of the filter frame, and a second limiting boss is provided on the bottom of the filter frame;

[0045] When the connecting arm is in the second position, the connecting arm abuts against the first limiting boss. When the connecting arm is in the first position, the connecting arm abuts against the second limiting boss. The connecting arm can move between the first limiting boss and the second limiting boss.

[0046] The present application sets a first limiting boss and a second limiting boss on the filter frame, thereby limiting the movement range of the connecting arm and preventing the connecting arm from falling out of the filter frame under the action of external force.

[0047] In an optional embodiment, the indoor unit further includes a surface frame, which is mounted on the middle frame, and the cover is disposed on the outside of the filter assembly.

[0048] This application provides a face frame and uses a face frame cover on the front side of the filter assembly to make the indoor unit more beautiful.

[0049] In a second aspect, the present invention provides an air conditioner comprising an outdoor unit and an indoor unit according to any one of the aforementioned embodiments, wherein the indoor unit and the outdoor unit are connected by a pipe. The air conditioner provided by the present application can facilitate the removal and installation of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 A schematic diagram of the structure of the indoor unit during installation of the filter assembly provided by an embodiment of the present utility model;

[0051] Figure 2 This is a structural diagram of the indoor unit provided by an embodiment of the utility model after removing the face frame;

[0052] Figure 3 A schematic diagram of a connecting arm of a filter assembly of an indoor unit provided by an embodiment of the present utility model in a first position;

[0053] Figure 4 A schematic diagram of the connecting arm of the filter assembly of the indoor unit provided by an embodiment of the present utility model in the second position;

[0054] Figure 5 This is a partial structural diagram of the middle frame of the indoor unit when the clamping groove provided in the embodiment of the utility model is provided on the filter frame;

[0055] Figure 6 for Figure 2 A in the middle is an enlarged schematic diagram;

[0056] Figure 7 A schematic structural diagram of a connecting arm of an indoor unit provided in an embodiment of the present utility model;

[0057] Figure 8This is a structural diagram of the middle frame of the indoor unit when the clamping groove is provided on the connecting arm according to an embodiment of the present utility model;

[0058] Figure 9 for Figure 8 The enlarged schematic diagram of point B in the middle;

[0059] Figure 10 This is a schematic diagram of the cross-sectional structure when the filter assembly is installed on the middle frame when the snap-in slot is provided on the connecting arm;

[0060] Figure 11 for Figure 10 The enlarged schematic diagram of point C in the middle;

[0061] Figure 12 This is a schematic diagram of the filter frame pulling out the second track groove section when the clamping groove is set on the connecting arm.

[0062] Icons: 100-indoor unit; 110-middle frame; 111-installation port; 112-clamping part; 113-first rail; 114-second rail; 115-third rail; 116-fourth rail; 117-plug-in slot; 118-first rail slot section; 119-second rail slot section; 130-filter assembly; 131-filter frame; 132-filter; 133-connecting arm; 134-clamping slot; 135-connecting part; 136-sliding part; 137-slide; 139-first limiting boss; 141-second limiting boss; 150-face frame. DETAILED DESCRIPTION

[0063] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0064] Please refer to Figure 1 The present invention provides an air conditioner, which includes an indoor unit 100 and an outdoor unit. The indoor unit 100 and the outdoor unit are connected by a pipeline to form a refrigerant circulation loop.

[0065] Please refer to Figures 1 to 12In this embodiment, the indoor unit 100 includes a middle frame 110 and a filter assembly 130. The middle frame 110 is provided with a mounting opening 111, and the middle frame 110 is protrudingly provided with a clamping portion 112. The filter assembly 130 includes a filter frame 131, a filter 132 and a connecting arm 133. The connecting arm 133 is installed on the filter frame 131, and the connecting arm 133 can slide relative to the filter frame 131. The top of the filter 132 is connected to the position near the top of the filter frame 131, and the bottom end of the filter 132 is connected to the connecting arm 133. When the connecting arm 133 slides to the first position, the connecting arm 133 is located at the lower end of the filter frame 131, and the connecting arm 133 pulls the filter 132 to expand so that the filter 132 is covered on one side of the filter frame 131. When the connecting arm 133 slides to the second position, it is located at the top of the filter frame 131 and pulls the bottom of the filter 132 upward, folding the filter 132 in half. The filter frame 131 and / or the connecting arm 133 are provided with a snap-fitting groove 134. When the filter assembly 130 is installed in the mounting opening 111 (i.e., when the filter assembly 130 is installed in the indoor unit 100), the connecting arm 133 is in the first position, and the snap-fitting portion 112 is snap-fitted into the snap-fitting groove 134. To remove the filter assembly 130, the filter frame 131 is pulled outward, causing the snap-fitting portion 112 to disengage from the snap-fitting groove 134.

[0066] In this embodiment, the snap-in slots 134 are located on the filter frame 131 and / or the connecting arm 133, and the snap-in portion 112 is located on the middle frame 110. To remove the filter assembly 130, the user simply pulls the filter frame 131 outward to release the snap-in portion 112 from the snap-in slots 134, without bending the filter frame 131. During installation, the snap-in portion 112 engages with the snap-in slots 134 simply by inserting the filter assembly 130 into the mounting opening 111, without bending the filter frame 131. This makes assembly and disassembly of the filter assembly 130 much more convenient. Secondly, by connecting the top of the filter 132 to the top of the filter frame 131, the connecting arm 133 is movably installed on the filter frame 131, and then the bottom end of the filter 132 is connected to the connecting arm 133. In this way, when the filter frame 131 slides to the first position at the bottom end of the filter frame 131, the connecting arm 133 can pull the filter 132 to unfold, so that the filter 132 is covered on one side of the filter frame 131, so that dust can be filtered when in use. When cleaning the filter 132, the connecting arm 133 can be slid to the second position at the top of the filter frame 131, and the connecting arm 133 folds the bottom end of the filter 132 toward the top of the filter frame 131, so that the side of the filter frame 131 where the filter 132 is set is exposed and the side where the filter 132 is in contact with the filter frame 131 is exposed. This can avoid the filter 132 and the filter frame 131 from blocking each other during cleaning, thereby making it easier to clean the filter assembly 130.

[0067] Filter screen 132 is mounted on the front (i.e., windward) side of filter screen frame 131. The top of filter screen 132 is connected to the top of filter screen frame 131 by bonding or pressing. Connecting arm 133 is movably mounted on the front of filter screen frame 131, with a gap formed between connecting arm 133 and filter screen frame 131. When connecting arm 133 moves from a first position to a second position, the folded portion of filter screen 132 can extend through the gap between connecting arm 133 and filter screen frame 131.

[0068] It is worth noting that the two sides of the filter screen 132 in the width direction are not connected to the filter screen frame 131, so that the connecting arm 133 can fold the bottom of the filter screen 132 upward during movement to fold the windward side of the filter screen 132 inward.

[0069] Please refer to Figure 3 、 Figure 4 and Figure 7 In this embodiment, the connecting arm 133 includes a connecting portion 135 and sliding portions 136 connected to both sides of the connecting portion 135. The opposite side walls of the two sliding portions 136 are provided with sliding grooves 137, and the two sliding portions 136 are movably mounted on both sides of the width direction of the filter skeleton 131 through the sliding grooves 137. The connecting portion 135 is located on the side of the filter 132 away from the filter skeleton 131. A gap is formed between the connecting portion 135 and the filter skeleton 131, and the bottom end of the filter 132 extends into the gap and is connected to the inner side surface of the connecting portion 135. Specifically, the width of the gap is greater than twice the thickness of the filter 132. In this way, when the connecting arm 133 moves upward, the folded part of the filter 132 can extend downward from the connecting arm 133 through the gap.

[0070] In this embodiment, the bottom portion of the filter 132 is folded toward the windward side of the filter 132 (i.e., bent toward the connection portion 135) to form a bent portion, and the leeward side of the bent portion is connected to the connection portion 135. When the connecting arm 133 moves from the first position to the second position, the connecting arm 133 drives the bottom end of the filter 132 toward the top of the filter frame 131. The folded portion of the filter 132 can extend downward through the gap between the connection portion 135 and the filter frame 131, allowing the connecting arm 133 to extend downward. In this embodiment, the bottom end of the filter 132 is folded toward the windward side of the filter 132 to form a bent portion, which is connected to the connection portion 135. In this way, after the filter 132 is folded, the windward side of the filter 132 is folded inward, thereby preventing dust from falling.

[0071] In this embodiment, a first limiting boss 139 is provided at the top of the filter frame 131, and a second limiting boss 141 is provided at the bottom of the filter frame 131. When the connecting arm 133 is in the second position, the connecting arm 133 abuts the first limiting boss 139. When the connecting arm 133 is in the first position, the connecting arm 133 abuts the second limiting boss 141. The connecting arm 133 is movable between the first limiting boss 139 and the second limiting boss 141.

[0072] In this embodiment, a first limiting boss 139 and a second limiting boss 141 are provided on the filter frame 131 , thereby limiting the movement range of the connecting arm 133 and preventing the connecting arm 133 from falling out of the filter frame 131 under the action of external force.

[0073] Please refer to Figures 2 to 6 In some embodiments of the present application, the filter frame 131 is provided with snap-in grooves 134 on both sides of the width direction near the bottom. The middle frame 110 is provided with a first track 113 and a second track 114, and a mounting opening 111 is formed between the first track 113 and the second track 114. The lower ends of the first track 113 and the second track 114 are both provided with snap-in portions 112. The filter assembly 130 is installed between the first track 113 and the second track 114, and the two snap-in portions 112 are snap-in engaged with the two snap-in grooves 134 in a one-to-one correspondence.

[0074] In this embodiment, snap-in grooves 134 are provided on both sides of the filter frame 131 in the width direction near the bottom, and snap-in portions 112 are provided at the lower ends of the first rail 113 and the second rail 114 on both sides of the mounting port 111, so that the filter assembly 130 can be stably fixed to the middle frame 110.

[0075] Specifically, the clamping groove 134 is an arc-shaped clamping groove 134 , and the shape of the clamping portion 112 matches the shape of the inserting groove 117 .

[0076] In this embodiment, the snap-fit ​​groove 134 is provided with an arc-shaped snap-fit ​​groove 134, so that the snap-fit ​​portion 112 can be conveniently snap-fitted into the snap-fit ​​groove 134 during the process of installing the filter assembly 130. When the user removes the filter 132, the snap-fit ​​portion 112 can be disengaged from the pull-fit groove.

[0077] It should be noted that the shape of the clamping portion 112 matches the shape of the insertion slot 117 , which can be understood as the clamping portion 112 being a curved columnar structure with a curved sidewall.

[0078] Please refer to Figures 2 to 6Furthermore, there are two filter assemblies 130, two mounting ports 111, and the clamping portion 112 includes a cylindrical clamping column. The middle frame 110 is also provided with a third track 115 and a fourth track 116. The second track 114 and the third track 115 are arranged side by side and connected to each other, and the fourth track 116 is spaced apart from the third track 115. The cylindrical clamping column is arranged at a position corresponding to the lower end of the second track 114 and the lower end of the third track 115 on the middle frame 110. Among them, one filter assembly 130 is inserted between the first track 113 and the second track 114, and the other filter assembly 130 is inserted between the third track 115 and the fourth track 116. The two clamping grooves 134 on the adjacent side of the two filter skeletons 131 are both clamped to the cylindrical clamping column.

[0079] In this embodiment, the cylindrical snap-in column is set at a position corresponding to the lower end of the middle frame 110 and the lower end of the second track 114 and the lower end of the third track 115, so that the adjacent sides of the two filter frames 131 can share a cylindrical snap-in column for snap connection, which is convenient for manufacturing and assembly.

[0080] Furthermore, the filter frame 131 comprises a frame and support ribs arranged transversely and longitudinally within the frame. The frame comprises an upper frame, a lower frame, a left frame, and a right frame. Both ends of the lower frame in the longitudinal direction (i.e., the ends of the filter frame 131 in the width direction) are provided with arc-shaped snap-in grooves 134, which are slightly curved.

[0081] Please refer to Figures 7 to 12 In another embodiment of the present application, a snap-in slot 134 is provided on the connecting arm 133, and the snap-in portion 112 is provided outwardly on the middle frame 110. The middle frame 110 is provided with a first track 113 and a second track 114, and a mounting opening 111 is formed between the first track 113 and the second track 114. A plug-in slot 117 is provided on each side of the first track 113 and the second track 114. The filter frame 131 is inserted into the plug-in slot 117 of the first track 113 and the second track 114. The snap-in portion 112 is snap-into the snap-in slot 134, and the snap-in portion 112 can deform the filter frame 131 so that the filter frame 131 abuts against the plug-in slot 117 and snaps into place.

[0082] In this embodiment, the clamping groove 134 is set on the connecting arm 133, so that after the filter assembly 130 is installed in the middle frame 110, the clamping portion 112 can be clamped in the clamping groove 134, and the clamping portion 112 can deform the mesh frame so that the filter frame 131 is abutted and clamped with the plug-in groove 117, thereby fixing the connecting arm 133 and the filter frame 131 to the middle frame 110, facilitating the installation of the filter assembly 130. To remove filter assembly 130, the user pulls filter frame 131 outward. Since connecting arm 133 is secured to middle frame 110 via engaging portion 112 and engaging slot 134, the first stage of the pull causes filter frame 131 to be partially pulled out of mounting opening 111. Connecting arm 133 moves relative to filter frame 131 from its first position to its second position. During this process, the bottom end of filter 132 is pulled toward the top end of filter frame 131 by connecting arm 133, causing filter 132 to fold. After connecting arm 133 reaches its second position, filter frame 131 is disengaged from engaging slot 117, and connecting arm 133 can no longer move relative to filter frame 131. In the second stage, further pulling of filter frame 131 causes it to move outward with connecting arm 133, disengaging engaging portion 112 from engaging slot 134, further facilitating removal of filter assembly 130. Generally speaking, when installing the filter assembly, the user only needs to insert the filter assembly 130 into the insertion slot 117. After the filter frame 131 is installed in place, the clamping portion 112 automatically locks into the clamping slot 134. When removing the filter assembly 130, the user only needs to pull the filter frame 131 outward. As the filter frame 131 is pulled outward, the clamping portion 112 automatically disengages from the clamping slot 134. The user does not need to perform the clamping and unclamping operations, making it more convenient to use.

[0083] Furthermore, both sliding portions 136 are provided with a snap-in slot 134 on one side away from the connecting portion 135. There are two snap-in portions 112: one protruding from the middle frame 110 at the end of the first track 113, and the other protruding from the middle frame 110 at the end of the second track 114. The two snap-in portions 112 snap into the two snap-in slots 134 in a one-to-one correspondence.

[0084] In this embodiment, a snap-fit ​​groove 134 is provided on each of the left and right sides of the connecting arm 133, and a snap-fit ​​portion 112 is provided below the ends of the first track 113 and the second track 114 of the middle frame 110, so that the connecting arm 133 and the filter frame 131 can be stably fixed to the middle frame 110.

[0085] Please refer to Figures 7 to 12Furthermore, the insertion slot 117 includes a first track slot section 118 and a second track slot section 119 connected in sequence. The first track slot section 118 is located near the clamping portion 112. The width of the first track slot section 118 gradually increases toward the clamping portion 112. The width of the second track slot section 119 corresponds to the thickness of the filter frame 131. When the filter assembly 130 is installed in the installation opening 111, the top of the filter frame 131 is inserted into the second track slot section 119 by the first track slot section 118. The connecting arm 133 is located below the first track slot section 118. The two sides of the filter 132 in the width direction are abutted against the filter frame 131 by the side walls of the second track slot section 119. The filter frame 131 is clamped against the side walls of the second track slot section 119 by the clamping portion 112. The filter frame 131 is pulled outward, and when the connecting arm 133 moves to the second position relative to the filter frame 131, the top end of the filter frame 131 moves into the first track groove section 118, so that the filter frame 131 is released from the track groove.

[0086] In this embodiment, the insertion slot 117 is configured as a first track slot section 118 and a second track slot section 119, with the width of the second track slot section 119 corresponding to the thickness of the filter frame 131. Thus, when the filter frame 131 is inserted into the second track slot section 119, the clamping portion 112 is clamped into the clamping slot 134 of the connecting arm 133, exerting a forward thrust on the connecting arm 133 and the filter frame 131, causing the filter frame 131 to deform and abut against the front sidewall of the second track slot section 119, thereby securing the filter assembly 130. Furthermore, the first track slot section 118 is gradually enlarged toward the mounting opening 111. When the end of the filter frame 131 is pulled outward to the first track slot section 118, the gradually increasing width of the first track slot section 118 provides space for the filter frame 131 and the connecting arm 133 to move forward, thereby facilitating the clamping portion 112's removal from the clamping slot 134. The width of the second track groove section 119 is set to correspond to the thickness of the filter frame 131, so that when the filter assembly 130 is installed in the plug-in slot 117, the front side wall of the second track groove section 119 will exert pressure on the filter 132, so that the two sides of the filter 132 in the width direction are fitted with the two sides of the filter frame 131 in the width direction.

[0087] It is worth noting that the main reason why the engaging portion 112 does not fall out of the engaging groove 134 during the first stage of pulling the filter frame 131 outward, but can fall out of the engaging groove 134 during the second stage of pulling the filter frame 131 outward, is that since the filter frame 131 is still partially inserted into the second track groove section 119 during the first stage, the outer wall of the second track groove section 119 exerts an inward thrust on the filter frame 131. This thrust offsets the forward component of the force exerted by the filter frame 131 during the pulling of the filter frame 131. Therefore, the engaging portion 112 does not fall out of the engaging groove 134 during the first stage of pulling the filter frame 131 outward. When the filter assembly 130 is installed, the clamping portion 112 applies an outward thrust to the lower end of the filter frame 131, causing the filter frame 131 to tend to move outward, allowing the front of the filter assembly 130 to abut against the front side wall of the second track groove section 119, and the filter assembly 130 is clamped to the second track groove section 119 through friction, and the two sides of the filter 132 are pressed together to fit the filter frame 131. In the second stage of pulling the filter frame 131 outward, since the filter frame 131 is moved out of the second track groove section 119 as a whole, and the width of the first track groove section 118 is wider than that of the second track groove section 119, under the action of the clamping portion 112, the front surface of the filter assembly 130 will not abut against the front side wall of the first track groove section 118. On the contrary, a gap will be formed between the two. At this stage, the backward thrust applied to the filter frame 131 by the front side wall of the insertion slot 117 disappears, and only a very small pulling force is required to allow the clamping portion 112 to disengage from the clamping slot 134.

[0088] Of course, in other embodiments of the present application, the above two arrangements of the clamping groove 134 and the clamping portion 112 may also exist at the same time.

[0089] In this embodiment, the indoor unit 100 further includes a surface frame 150 . The surface frame 150 is mounted on the middle frame 110 and covers the outside of the filter assembly 130 .

[0090] In this embodiment, a face frame 150 is provided, and the face frame 150 is used to cover the front side of the filter assembly 130, so that the indoor unit 100 can be made more beautiful.

[0091] Please refer to Figure 1 In one embodiment, the face frame 150 is movably mounted on the middle frame 110. When the user needs to remove the filter assembly 130, he first removes the face frame 150 to expose the mounting opening 111 of the middle frame 110, and then removes the filter 132. In another embodiment, please refer to Figure 1 A pull-out opening corresponding to the installation opening 111 is provided on the surface frame 150 , and the filter assembly 130 can be directly plugged into or pulled out through the pull-out opening. The surface frame 150 does not need to be removed during the process of disassembling and assembling the filter 132 .

[0092] In summary, the indoor unit 100 and air conditioner provided in this embodiment provide a snap-in slot 134 in the filter frame 131 and / or the connecting arm 133, and a snap-in portion 112 in the middle frame 110. When removing the filter assembly 130, the user simply pulls the filter frame 131 outward to release the snap-in portion 112 from the snap-in slot 134, without having to bend the filter frame 131. During installation, the user simply inserts the filter assembly 130 into the installation opening 111, securing the snap-in portion 112 in the snap-in slot 134. There is no need to bend the filter frame 131, thus making assembly and disassembly of the filter assembly 130 more convenient. Furthermore, the structural design of the filter assembly 130 prevents dust from falling from the filter 132 during removal, facilitating cleaning of the filter assembly 130.

[0093] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. An indoor unit, characterized in that: The indoor unit comprises a middle frame (110) and a filter assembly (130); the middle frame (110) is provided with a mounting opening (111), and the middle frame (110) is convexly provided with a clamping portion (112); the filter assembly (130) comprises a filter frame (131), a filter (132), and a connecting arm (133); the connecting arm (133) is mounted on the filter frame (131), and the connecting arm (133) is capable of sliding relative to the filter frame (131); The top end of the filter screen (132) is connected to a position close to the top end of the filter screen frame (131), and the bottom end of the filter screen (132) is connected to the connecting arm (133); When the connecting arm (133) slides to the first position, the connecting arm (133) is located at the lower end of the filter frame (131), and the connecting arm (133) stretches the filter (132) so that the filter (132) is covered on one side of the filter frame (131); When the connecting arm (133) slides to the second position, the connecting arm (133) is located at the top end of the filter screen frame (131), and the connecting arm (133) pulls up the bottom end of the filter screen (132) so that the filter screen (132) is folded in half; The filter frame (131) and / or the connecting arm (133) are provided with a snap-fit ​​groove (134); The filter assembly (130) is installed in the installation opening (111), the connecting arm (133) is located in the first position, and the clamping portion (112) is clamped in the clamping groove (134); By pulling the filter frame (131) outward, the clamping portion (112) can be released from the clamping groove (134).

2. The indoor unit according to claim 1, characterized in that: The clamping grooves (134) are provided on both sides of the filter frame (131) in the width direction close to the bottom; The middle frame (110) is provided with a first track (113) and a second track (114), and the installation opening (111) is formed between the first track (113) and the second track (114); The lower ends of the first track (113) and the second track (114) are both provided with the clamping portion (112); the filter assembly (130) is installed between the first track (113) and the second track (114), and the two clamping portions (112) are clamped in the two clamping grooves (134) in a one-to-one correspondence.

3. The indoor unit according to claim 2, characterized in that: The clamping groove (134) is an arc-shaped clamping groove (134), and the shape of the clamping portion (112) matches the shape of the clamping groove (134).

4. The indoor unit according to claim 3, characterized in that: There are two filter screen assemblies (130), there are two installation openings (111), and the clamping portion (112) includes a cylindrical clamping column; The middle frame (110) is further provided with a third track (115) and a fourth track (116), the second track (114) and the third track (115) are arranged side by side and connected to each other, and the fourth track (116) is arranged at intervals from the third track (115); The cylindrical clamping column is arranged at a position of the middle frame (110) corresponding to the lower end of the second track (114) and the lower end of the third track (115); One of the filter screen assemblies (130) is inserted between the first track (113) and the second track (114), and the other filter screen assembly (130) is inserted between the third track (115) and the fourth track (116). The two clamping grooves (134) on adjacent sides of the two filter screen frames (131) are both clamped to the cylindrical clamping column.

5. The indoor unit according to any one of claims 1 to 4, characterized in that: The clamping groove (134) is provided on the connecting arm (133), and the clamping portion (112) is protruded outwardly on the middle frame (110); The middle frame (110) is provided with a first track (113) and a second track (114), the installation opening (111) is formed between the first track (113) and the second track (114), and a plug-in slot (117) is provided on one side corresponding to the first track (113) and the second track (114); The filter frame (131) is inserted into the insertion groove (117) of the first track (113) groove and the second track (114) groove, the clamping portion (112) is clamped into the clamping groove (134), and the clamping portion (112) can deform the filter frame (131) so that the filter frame (131) abuts against the insertion groove (117) and is clamped.

6. The indoor unit according to claim 5, characterized in that: The connecting arm (133) includes a connecting portion (135) and sliding portions (136) connected to both sides of the connecting portion (135); the two sliding portions (136) are provided with sliding grooves (137) on opposite side walls, and the two sliding portions (136) are movably mounted on both sides of the filter frame (131) in the width direction through the sliding grooves (137); The two sliding parts (136) are both provided with the clamping groove (134) on one side away from the connecting part (135); There are two clamping parts (112), one clamping part (112) is protruding from the middle frame (110) at the end of the first track (113), and the other clamping part (112) is protruding from the middle frame (110) at the end of the second track (114); The two clamping portions (112) are clamped in the two clamping slots (134) in a one-to-one correspondence.

7. The indoor unit according to claim 5, characterized in that: The plug-in slot (117) comprises a first track slot section (118) and a second track slot section (119) connected in sequence, wherein the first track slot section (118) is arranged close to the clamping portion (112), and the width of the first track slot section (118) gradually increases toward the clamping portion (112), and the width of the second track slot section (119) corresponds to the thickness of the filter frame (131); When the filter assembly (130) is installed in the installation opening (111), the top of the filter frame (131) is inserted into the second track groove section (119) by the first track groove section (118), the connecting arm (133) is located below the first track groove section (118), and both sides of the filter (132) in the width direction are fitted with the filter frame (131) under the action of the side walls of the second track groove section (119), and the filter frame (131) is clamped against the side walls of the second track groove section (119) under the action of the clamping portion (112); The filter frame (131) is pulled outward, and when the connecting arm (133) moves to the second position relative to the filter frame (131), the top end of the filter frame (131) moves into the first track groove section (118), so that the filter frame (131) is released from the track groove.

8. The indoor unit according to any one of claims 1 to 4, characterized in that: A first limiting boss (139) is provided at the top of the filter frame (131), and a second limiting boss (141) is provided at the bottom of the filter frame (131); When the connecting arm (133) is in the second position, the connecting arm (133) abuts against the first limiting boss (139); when the connecting arm (133) is in the first position, the connecting arm (133) abuts against the second limiting boss (141); and the connecting arm (133) can move between the first limiting boss (139) and the second limiting boss (141).

9. The indoor unit according to any one of claims 1 to 4, characterized in that: The indoor unit further comprises a surface frame (150), wherein the surface frame (150) is mounted on the middle frame (110) and is covered on the outside of the filter assembly (130).

10. An air conditioner, characterized in that: The utility model comprises an outdoor unit and an indoor unit according to any one of claims 1 to 9, wherein the outdoor unit is connected to the indoor unit through a pipeline.

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