Air conditioner indoor unit and air conditioner

Abstract

An embodiment of the present invention provides an indoor unit of an air conditioner and an air conditioner, and relates to the technical field of air conditioner structures. The indoor unit of the air conditioner provided by the embodiment of the present invention includes a middle frame and an end cover installed at the end of the middle frame, and an anti-fool-proofing protrusion is provided on the end cover. An escape space is provided at one end of the middle frame. An interference portion is provided at the other end. The escape space is used to cooperate with the anti-fool-proofing protrusion to accommodate the anti-fool-proofing protrusion, and at this time the end cover can be smoothly buckled on the end of the middle frame. In the event of a mis-installation problem, the anti-fool-proofing protrusion conflicts with the interference portion, thereby lifting the end cover to prevent the end cover from being buckled on the other end of the middle frame, thereby achieving an anti-fool-proofing effect and improving assembly efficiency.

Description

Technical Field

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

[0002] The middle frame is an important supporting frame structure in the indoor unit of the air conditioner. End covers are installed at both ends of its length direction for shielding and sealing. The two end covers are respectively the left end cover and the right end cover.

[0003] However, the structures of the left and right end covers in the air conditioner indoor unit are relatively similar, and it is difficult to distinguish them during installation, which may cause the end covers to be installed incorrectly. For example, the right end cover is installed on the left side of the middle frame, and it is difficult to disassemble them after incorrect installation, which seriously affects the assembly efficiency. Summary of the Invention

[0004] The problem solved by the present invention is that the end cover of the indoor unit of the air conditioner is easily misassembled, resulting in low assembly efficiency.

[0005] In order to solve the above problems, the present invention provides an air conditioner indoor unit and an air conditioner, which can effectively improve the above-mentioned technical problems.

[0006] The present invention can be implemented like this:

[0007] An embodiment of the present invention provides an air conditioner indoor unit, which includes a middle frame and an end cover installed at the end of the middle frame; the end cover is provided with an anti-fool-proof protrusion, one end of the middle frame is provided with an avoidance space, and the other end of the middle frame is provided with a resistance portion; the avoidance space is used to accommodate the anti-fool-proof protrusion so that the end cover is buckled with one end of the middle frame; the resistance portion is used to prevent the end cover from being buckled with the other end of the middle frame when it interferes with the anti-fool-proof protrusion.

[0008] This air conditioner indoor unit features an anti-mock protrusion on the end cover, a clearance space at one end of the middle frame, and a contact portion at the other end of the middle frame. The clearance space cooperates with the anti-mock protrusion when the end cover is snapped onto one end of the middle frame, meaning the clearance space can accommodate the anti-mock protrusion, allowing the end cover to properly fit onto that end of the middle frame. The contact portion and the clearance space are located at either end of the middle frame. In this way, if the end cover is incorrectly installed, the contact portion will interfere with the anti-mock protrusion, preventing the end cover from snapping onto the other end of the middle frame. This provides an anti-mock effect and improves assembly efficiency.

[0009] Optionally, the end cover includes a decorative strip and a decorative plate, the decorative strip is located between the decorative plate and the middle frame, and the fool-proof protrusion is provided on the decorative strip.

[0010] The end cap is composed of a decorative strip and a decorative plate. The decorative strip is located between the decorative plate and the middle frame, and can be used to decorate the space between the decorative plate and the middle frame. When installing the end cap, the decorative strip can be installed on the middle frame first, and then the decorative plate. This prevents misplacement of the decorative strip by placing the anti-mock protrusion on the decorative strip.

[0011] Optionally, the decorative strip includes an outer frame portion and a rib group that are connected to each other, and the outer frame portion cooperates with the end edge of the middle frame; the rib group is located in the space enclosed by the outer frame portion, and the outer frame portion and / or the rib group are provided with the anti-fool protrusion.

[0012] The decorative strip consists of an interconnected outer frame and a rib assembly. The outer frame mates with the edge of the inner frame, providing decoration. The ribs are located within the space enclosed by the outer frame, reinforcing the outer frame and ensuring the overall strength of the decorative strip. The anti-fouling protrusions are located on the outer frame and / or the rib assembly.

[0013] Optionally, the rib group includes a first rib portion, a second rib portion and a third rib portion, the first rib portion extends along the center line of the outer frame portion, and one end of the first rib portion is connected to the outer frame portion, and the second rib portion and the third rib portion are both connected to the other end of the first rib portion; the end of the second rib portion away from the first rib portion is connected to the outer frame portion, and the end of the third rib portion away from the first rib portion is connected to the outer frame portion, and the second rib portion and the third rib portion are respectively located on both sides of the center line of the outer frame portion.

[0014] By arranging the first rib portion, the second rib portion and the third rib portion in the rib group, the reinforcement effect on the outer frame portion is ensured, and the overall strength of the decorative strip is higher.

[0015] Optionally, the anti-foolproof protrusion includes a first anti-foolproof protrusion and a second anti-foolproof protrusion, the first anti-foolproof protrusion is arranged on the second rib portion, the second anti-foolproof protrusion is arranged on the third rib portion, and the first anti-foolproof protrusion and the second anti-foolproof protrusion are asymmetrically arranged about the center line of the outer frame portion.

[0016] A first anti-foolproofing protrusion is provided on the second rib portion, and a second anti-foolproofing protrusion is provided on the third rib portion. Since the second rib portion and the third rib portion are respectively located on both sides of the center line of the outer frame portion, the first anti-foolproofing protrusion and the second anti-foolproofing protrusion are also respectively located on both sides of the center line of the outer frame portion, and the first anti-foolproofing protrusion and the second anti-foolproofing protrusion are asymmetrically arranged about the center line of the outer frame portion. In this way, in the event of a misinstallation problem, the first anti-foolproofing protrusion and the second anti-foolproofing protrusion can respectively interfere with the corresponding interference portions to lift up both sides of the decorative strip, thereby better avoiding the decorative strip from being buckled with the end of the middle frame, thereby achieving an anti-foolproofing effect.

[0017] Optionally, the first foolproof protrusion is higher than the second foolproof protrusion. That is, the first foolproof protrusion and the second foolproof protrusion are staggered in the height direction of the end cap. In this way, when the end cap is misassembled, the part of the end cap that is lifted up by the first foolproof protrusion and the interference portion is higher than the part of the end cap that is lifted up by the second foolproof protrusion and the interference portion. The area where the end cap cannot be fastened is larger, further improving the foolproof effect.

[0018] Optionally, there are multiple anti-fool-proofing protrusions, some of which are located on one side of the center line of the end cover, and another part of which are located on the other side of the center line of the end cover.

[0019] The number of anti-mash protrusions is set to multiple. In the event of misassembly, the multiple anti-mash protrusions will simultaneously interfere with the corresponding multiple interference parts, thereby enhancing the anti-mash reliability. In addition, some of the multiple anti-mash protrusions are located on one side of the center line of the end cap, while other parts of the multiple anti-mash protrusions are located on the other side of the center line of the end cap. In the event of misassembly, the interference parts can lift both sides of the end cap, further improving the anti-mash effect.

[0020] Optionally, the abutment is a raised structure provided on the end face of the middle frame. The distance that the avoidance space protrudes from the end face of the middle frame is smaller than that of the abutment. Since the abutment is provided as a raised structure on the end face of the middle frame, the avoidance space can be provided as a structure without a raised structure. That is, the avoidance space can be formed without modifying the end face of the middle frame at that location, thereby meeting the requirement of accommodating the anti-fouling raised structure, minimizing changes to the middle frame, and facilitating the production of the middle frame.

[0021] An embodiment of the present invention also provides an air conditioner, which includes an air conditioner indoor unit, the air conditioner indoor unit includes a middle frame and an end cover installed on the end of the middle frame; the end cover is provided with an anti-fool-proof protrusion, one end of the middle frame is provided with an avoidance space, and the other end of the middle frame is provided with a resistance portion; the avoidance space is used to accommodate the anti-fool-proof protrusion so that the end cover is buckled with one end of the middle frame; the resistance portion is used to prevent the end cover from being buckled with the other end of the middle frame when it interferes with the anti-fool-proof protrusion.

[0022] Since the air conditioner includes an indoor unit, it also has the beneficial effect of preventing the end cover from being installed incorrectly and playing a fool-proof role. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of an indoor unit of an air conditioner provided in an embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the exploded structure of an air conditioner indoor unit provided by an embodiment of the present invention;

[0025] Figure 3 A schematic structural diagram of the left end cover of an air conditioner indoor unit provided by an embodiment of the present invention;

[0026] Figure 4 A schematic structural diagram of the left end of the middle frame of the indoor unit of an air conditioner provided by an embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of the right end cover of an air conditioner indoor unit provided by an embodiment of the present invention;

[0028] Figure 6 This is a structural schematic diagram of the right end of the middle frame of the air conditioner indoor unit provided by an embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 100-air conditioner indoor unit; 110-middle frame; 111-left end; 112-right end; 113-avoidance space; 114-interference part; 115-first avoidance space; 116-second avoidance space; 117-first interference part; 118-second interference part; 130-end cover; 131-left end cover; 132-right end cover; 133-decorative strip; 1331-outer frame; 1332-rib group; 1333-first rib part; 1334-second rib part; 1335-third rib part; 1336-fourth rib part; 1337-fifth rib part; 134-decorative panel; 135-anti-foolproofing protrusion; 136-first anti-foolproofing protrusion; 137-second anti-foolproofing protrusion. DETAILED DESCRIPTION

[0031] 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.

[0032] Figure 1 This is a structural diagram of the air conditioner indoor unit 100 provided in this embodiment. Figure 2 This is a schematic diagram of the exploded structure of the air conditioner indoor unit 100 provided in this embodiment. Figure 1 and Figure 2 , this embodiment provides an air conditioner indoor unit 100, and accordingly, provides an air conditioner.

[0033] The air conditioner includes an indoor unit 100 and an outdoor unit. The indoor unit 100 is connected to the outdoor unit to form a heat exchange circuit for circulating a heat exchange medium, thereby realizing heat exchange between indoor and outdoor to perform indoor cooling or heating.

[0034] The air conditioner indoor unit 100 includes a middle frame 110 and an end cover 130 installed at the end of the middle frame 110. The end cover 130 is provided with an anti-fool protrusion 135. An escape space 113 is provided at one end of the middle frame 110. A resistance portion 114 is provided at the other end. The escape space 113 is used to cooperate with the anti-fool protrusion 135 to accommodate the anti-fool protrusion 135. At this time, the end cover 130 can be smoothly buckled on the end of the middle frame 110. In the event of a mis-assembly problem, the anti-fool protrusion 135 will conflict with the resistance portion 114, thereby lifting the end cover 130 to prevent the end cover 130 from being buckled on the other end of the middle frame 110, thereby achieving an anti-fool effect and improving assembly efficiency.

[0035] The air conditioner indoor unit 100 provided in this embodiment is further described below:

[0036] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the length direction of the middle frame 110 ( Figure 1 The two ends (in the AB direction) of the middle frame 110 are respectively a left end 111 and a right end 112, and the left end 111 and the right end 112 are respectively provided with an end cover 130. That is, the air conditioner indoor unit 100 provided in this embodiment has two end covers 130, namely a left end cover 131 and a right end cover 132. Accordingly, during normal installation, the left end cover 131 is buckled onto the left end 111 of the middle frame 110, and the right end cover 132 is buckled onto the right end 112 of the middle frame 110. In this way, when the left end cover 131 is installed on the right end 112 of the middle frame 110, or the right end cover 132 is installed on the left end 111 of the middle frame 110, it means that the end cover 130 has been incorrectly installed.

[0037] In other words, for the left end cover 131, the “one end of the middle frame 110” in the description of this embodiment is the left end 111 of the middle frame 110, and the “other end of the middle frame 110” is the right end 112 of the middle frame 110. Similarly, for the right end cover 132, the “one end of the middle frame 110” in the description of this embodiment is the right end 112 of the middle frame 110, and the “other end of the middle frame 110” is the left end 111 of the middle frame 110.

[0038] Each anti-foolproof protrusion 135 is provided with a corresponding matching group on the middle frame 110, and the matching group includes an avoidance space 113 and a resistance portion 114, that is, the matching group corresponding to the anti-foolproof protrusion 135 on the left end cover 131 includes the avoidance space 113 set at the left end 111 of the middle frame 110 and the resistance portion 114 set at the right end 112 of the middle frame 110, and the matching group corresponding to the anti-foolproof protrusion 135 on the right end cover 132 includes the avoidance space 113 set at the right end 112 of the middle frame 110 and the resistance portion 114 set at the left end 111 of the middle frame 110. At the same time, the distance that the avoidance space 113 of the left end 111 of the middle frame 110 protrudes from the surface of the left end 111 of the middle frame 110 is smaller than the distance that the interference portion 114 of the right end 112 of the middle frame 110 protrudes from the surface of the right end 112 of the middle frame 110. In this way, the interference portion 114 can, when the end cover 130 is misinstalled, contact the anti-mistake protrusion 135 and thereby lift the end cover 130. Similarly, the distance that the avoidance space 113 of the right end 112 of the middle frame 110 protrudes from the surface of the left end 111 of the middle frame 110 is smaller than the distance that the interference portion 114 of the left end 111 of the middle frame 110 protrudes from the surface of the right end 112 of the middle frame 110.

[0039] Furthermore, in a matching group, the interference portion 114 forms a projection on the end face where the avoidance space 113 is located along the length direction of the middle frame 110. The projection and the avoidance space 113 are symmetrically distributed about the center line L1 of the middle frame 110 to ensure the interference effect between the interference portion 114 and the foolproof protrusion 135 when reversely installed, thereby ensuring the foolproof effect. It should be noted that the "center line of the middle frame 110" is the end of the middle frame 110 in the front-to-back direction of the middle frame 110 ( Figure 1 The midpoints of the lines connecting the two edges in the middle CD direction are formed, and “symmetrical distribution about the midline of the middle frame 110” means that the distribution positions are roughly symmetrical, and does not mean that the shapes, sizes, etc. of the two components distributed at the two positions also need to be symmetrical.

[0040] The end cap 130 includes a decorative strip 133 and a decorative plate 134, which are connected to each other. The decorative strip 133 is located between the decorative plate 134 and the middle frame 110, and the anti-mock protrusion 135 is provided on the decorative strip 133. Therefore, when installing the end cap 130, the decorative strip 133 is installed first. If the decorative strip 133 is properly fastened, the end cap 130 is not installed incorrectly, and the decorative plate 134 can be installed later, avoiding the problem of unnoticed incorrect installation of the decorative strip 133.

[0041] It should be noted that in other embodiments, the end cap 130 may be provided as an integral structure, for example, the end cap 130 may be provided as a structure including only the decorative plate 134, or the end cap 130 may be provided as a structure integrally formed with the decorative plate 134 and the decorative strip 133. In this embodiment, both the left end cap 131 and the right end cap 132 are structures formed by combining the decorative strip 133 and the decorative plate 134.

[0042] Figure 3 This is a structural diagram of the left end cover 131 of the air conditioner indoor unit 100 provided in this embodiment. Figure 4 This is a structural diagram of the left end 111 of the middle frame 110 in the air conditioner indoor unit 100 provided in this embodiment. Figure 5 This is a structural diagram of the right end cover 132 of the air conditioner indoor unit 100 provided in this embodiment. Figure 6 This is a structural diagram of the right end 112 of the middle frame 110 in the air conditioner indoor unit 100 provided in this embodiment. Figures 1-6 In this embodiment, the interference portion 114 provided on the left end 111 of the middle frame 110 is used to interfere with the right end cover 132 to prevent the right end cover 132 from being incorrectly installed on the left end 111 of the middle frame 110. The interference portion 114 provided on the right end 112 of the middle frame 110 is used to interfere with the left end cover 131 to prevent the left end cover 131 from being incorrectly installed on the left end 111 of the middle frame 110. The anti-mock protrusion 135 provided on the left end cover 131 and the anti-mock protrusion 135 provided on the right end cover 132 have substantially the same structure, but are positioned substantially oppositely. The following description will be based on the mating structure of the left end cover 131 and the middle frame 110 as an example, and the mating structure of the right end cover 132 and the middle frame 110 will not be further elaborated.

[0043] In this embodiment, the decorative strip 133 comprises an interconnected outer frame portion 1331 and a rib assembly 1332. The outer frame portion 1331 mates with the end edge of the middle frame 110 and, when assembled, is positioned between the end edge of the middle frame 110 and the end edge of the decorative panel 134 for decorative purposes. The rib assembly 1332 is positioned within the space enclosed by the outer frame portion 1331, thereby increasing the strength of the outer frame portion 1331 and ensuring the overall reliability of the decorative strip 133.

[0044] Specifically, the outer frame portion 1331 is an annular structure corresponding to the shape and size of the end edge of the middle frame 110. In this embodiment, the outer frame portion 1331 is roughly hexagonal, and its two sides along the front and rear directions of the middle frame 110 are roughly parallel. The center line of the outer frame portion 1331 ( Figure 3The L2 line in the figure is roughly the straight line between the two sides of the outer frame portion 1331 along the front-to-back direction of the middle frame 110. At the same time, since the outer dimensions of the outer frame portion 1331 are roughly the same as the outer dimensions of the end of the middle frame 110, the center line of the outer frame portion 1331 can be regarded as a straight line that is roughly the same as and parallel to the center line of the middle frame 110.

[0045] Furthermore, the rib group 1332 includes a first rib portion 1333, a second rib portion 1334, and a third rib portion 1335. The first rib portion 1333 extends along the midline of the outer frame portion 1331, with one end of the first rib portion 1333 connected to the outer frame portion 1331, and the second rib portion 1334 and the third rib portion 1335 are both connected to the other end of the first rib portion 1333. The second rib portion 1334 is connected to the outer frame portion 1331 at an end away from the first rib portion 1333, and the third rib portion 1335 is connected to the outer frame portion 1331 at an end away from the first rib portion 1333. The second rib portion 1334 and the third rib portion 1335 are respectively located on either side of the midline of the outer frame portion 1331.

[0046] Specifically, the upper end of the first rib portion 1333 is connected to the outer frame portion 1331, and the lower end extends along the midline of the outer frame portion 1331 to the lower half of the outer frame portion 1331. The second rib portion 1334 and the third rib portion 1335 are both connected to the lower end of the first rib portion 1333, forming an inverted Y-shaped support structure.

[0047] The rib group 1332 also includes a fourth rib 1336 and a fifth rib 1337. The ends of the fourth rib 1336 are connected to the outer frame 1331 and the first rib 1333, respectively. The ends of the fifth rib 1337 are connected to the outer frame 1331 and the first rib 1333, respectively. When installed, the fourth rib 1336 and the fifth rib 1337 extend in the front-to-back direction of the middle frame 110. The fourth rib 1336 and the fifth rib 1337 are located on either side of the first rib 1333, spaced apart vertically. Furthermore, the fourth rib 1336 and the fifth rib 1337 are both taller than the second rib 1334 and the third rib 1335. This provides reliable support for the outer frame 1331.

[0048] In this embodiment, the foolproofing protrusion 135 includes a first foolproofing protrusion 136 and a second foolproofing protrusion 137. The first foolproofing protrusion 136 is arranged on the second rib portion 1334, and the second foolproofing protrusion 137 is arranged on the third rib portion 1335. In this way, the first foolproofing protrusion 136 and the second foolproofing protrusion 137 are respectively located on both sides of the center line of the outer frame portion 1331, and the first foolproofing protrusion 136 and the second foolproofing protrusion 137 are both located in the lower half of the left end cover 131. The first foolproofing protrusion 136 and the second foolproofing protrusion 137 can prop up the front and rear sides of the lower half of the left end cover 131 in the event of misassembly. At the same time, the first foolproofing protrusion 136 and the second foolproofing protrusion 137 are asymmetrically arranged with respect to the center line of the outer frame portion 1331 to achieve a foolproofing effect. Specifically, the first foolproofing protrusion 136 and the second foolproofing protrusion 137 are staggered up and down.

[0049] Correspondingly, the left end 111 of the middle frame 110 has an escape space 113 corresponding to the first foolproof protrusion 136 of the left end cover 131 and the second foolproof protrusion 137 of the left end cover 131, and the right end 112 of the middle frame 110 has a contact portion 114 corresponding to the first foolproof protrusion 136 of the left end cover 131 and the second foolproof protrusion 137 of the left end cover 131. Specifically, the escape space 113 and the contact portion 114 corresponding to the first foolproof protrusion 136 are respectively a first escape space 115 and a first contact portion 117, and the escape space 113 and the contact portion 114 corresponding to the second foolproof protrusion 137 are respectively a second escape space 116 and a second contact portion 118. When the left end cover 131 is installed on the left end 111 of the middle frame 110, the first avoidance space 115 corresponds to the position of the first anti-foolproofing protrusion 136, and the second avoidance space 116 corresponds to the position of the second anti-foolproofing protrusion 137, so that the left end cover 131 can be installed smoothly; when the left end cover 131 is installed on the right end 112 of the middle frame 110, the first contact portion 117 of the right end 112 corresponds to the position of the first anti-foolproofing protrusion 136, thereby lifting the first anti-foolproofing protrusion 136, and the second contact portion 118 of the right end 112 corresponds to the position of the second anti-foolproofing protrusion 137, thereby lifting the second anti-foolproofing protrusion 137, so that the left end cover 131 cannot be buckled on the right end 112 of the middle frame 110.

[0050] Furthermore, the height of the first fool-proofing protrusion 136 is higher than the height of the second fool-proofing protrusion 137. Specifically, the height of the first fool-proofing protrusion 136 is the height of the first fool-proofing protrusion 136 in the height direction of the end cover 130 (eg Figure 3 The height of the second foolproof protrusion 137 is the height of the second foolproof protrusion 137 in the height direction of the end cap 130. By arranging the first foolproof protrusion 136 and the second foolproof protrusion 137 in an asymmetrical distribution and staggered arrangement in the height direction, it helps to ensure that the area where the end cap 130 cannot be fastened is sufficiently large, thereby ensuring the foolproof effect.

[0051] It should be noted that in this embodiment, an anti-mistake protrusion 135 is provided on the rib group 1332 of the decorative strip 133. It can be understood that in some other embodiments, the position of the anti-mistake protrusion 135 can also be set according to needs, for example, the anti-mistake protrusion 135 is only set on the outer frame part 1331, or the anti-mistake protrusion 135 is provided on both the outer frame part 1331 and the rib group 1332.

[0052] Optionally, the abutment portion 114 is a protrusion provided on the end face of the middle frame 110. In this embodiment, the first avoidance space 115 and the second avoidance space 116 are both spaces corresponding to the end face of the middle frame 110. When the left end cover 131 is snapped onto the left end 111 of the middle frame 110, these spaces correspond to the positions of the first and second anti-foolproof protrusions 136 and 137, providing installation space for the first and second anti-foolproof protrusions 136 and 137. This can reduce changes to the middle frame 110. At the same time, since the lower side of the middle frame 110 has an air supply port, arranging the first and second avoidance spaces 115 and 116 on one side of the plane can also reduce the impact on the air supply effect.

[0053] The first and second contact portions 117 and 118 are protrusions provided on the end surface of the middle frame 110 . When the left end cover 131 is buckled onto the right end 112 of the middle frame 110 , the first contact portion 117 contacts the first anti-foolproof protrusion 136 , and the second contact portion 118 contacts the second anti-foolproof protrusion 137 .

[0054] Correspondingly, the left end 111 of the middle frame 110 is also provided with a first interference portion 117 and a second interference portion 118 for correspondingly interfering with the first fool-proofing protrusion 136 and the second fool-proofing protrusion 137 of the right end cover 132 .

[0055] It should be noted that in this embodiment, the interference portion 114 is set as a raised structure, and accordingly, the avoidance space 113 is naturally formed by the end face at a position symmetrical to the projection of the raised structure. It can be understood that in some other embodiments, the interference portion 114 and the structure at the avoidance space 113 can also be specifically set according to needs. For example, when the avoidance space 113 is formed by a groove or a hole, the interference portion 114 can also be set as part of the end face of the middle frame 110.

[0056] Thus, the end cap 130 provided in this embodiment has a plurality of foolproof protrusions 135, a portion of which (e.g., the first foolproof protrusion 136) is located on one side of the centerline of the outer frame portion 1331; another portion of which (e.g., the second foolproof protrusion 137) is located on the other side of the centerline of the outer frame portion 1331. Furthermore, in this embodiment, the first foolproof protrusion 136 and the second foolproof protrusion 137 are both located on the lower half of the end cap 130. It is understood that in other embodiments, the foolproof protrusion 135 may also be provided on the upper half of the end cap 130 as required.

[0057] The air conditioner indoor unit 100 and air conditioner provided by the embodiment of the present invention provide a foolproof protrusion 135 on the end cover 130 and an avoidance space 113 at one end of the middle frame 110 so that the end cover 130 can be correctly fastened to the end of the middle frame 110. At the same time, a resistance portion 114 is provided at the other end of the middle frame 110 so that when the end cover 130 is incorrectly installed, the end cover 130 is lifted up by the interference between the foolproof protrusion 135 and the resistance portion 114, thereby preventing the end cover 130 from being fastened, thereby achieving a foolproof effect. Moreover, the air conditioner indoor unit 100 further ensures the foolproof effect and improves assembly efficiency by rationally setting the position of the foolproof protrusion 135. At the same time, at least a portion of the avoidance space 113 and the resistance portion 114 on the middle frame 110 can adopt the inherent structure of the middle frame 110, and the middle frame 110 is slightly changed, which helps to reduce the modification of the production mold of the middle frame 110 and reduce production costs.

[0058] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can 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 should be based on the scope defined by the claims.

Claims

1. An air conditioner indoor unit, characterized in that: The invention comprises a middle frame (110) and an end cover (130) installed at an end of the middle frame (110); the end cover (130) is provided with an anti-fool protrusion (135); one end of the middle frame (110) is provided with an avoidance space (113); the other end of the middle frame (110) is provided with a resistance portion (114); the avoidance space (113) is used to accommodate the anti-fool protrusion (135) so that the end cover (130) is buckled with one end of the middle frame (110); the resistance portion (114) is used to prevent the end cover (130) from being buckled with the other end of the middle frame (110) when it conflicts with the anti-fool protrusion (135); The middle frame (110) has a left end (111) and a right end (112) opposite to each other, the end cover (130) includes a left end cover (131) for being mounted on the left end (111) and a right end cover (132) for being mounted on the right end (112), the interference portion (114) located at the right end (112) is used to interfere with the anti-fool protrusion (135) of the left end cover (131), and the interference portion (114) located at the left end (111) is used to interfere with the anti-fool protrusion (135) of the right end cover (132); Each of the fool-proof protrusions (135) is provided with a corresponding matching group on the middle frame (110), and the matching group includes an avoidance space (113) and a resistance portion (114). The matching group corresponding to the fool-proof protrusion (135) on the left end cover (131) includes the avoidance space (113) provided at the left end (111) of the middle frame (110) and the resistance portion (114) provided at the right end (112) of the middle frame (110). The matching group corresponding to the fool-proof protrusion (135) on the right end cover (132) includes the avoidance space (113) provided at the right end (112) of the middle frame (110) and the resistance portion (114) provided at the left end (111) of the middle frame (110). In one of the mating groups, the abutment portion (114) forms a projection on the end face where the avoidance space (113) is located along the length direction of the middle frame (110), and the projection and the avoidance space (113) are symmetrically distributed about the center line L1 of the middle frame (110).

2. The air conditioner indoor unit according to claim 1, characterized in that: The end cover (130) includes a decorative strip (133) and a decorative plate (134), the decorative strip (133) is located between the decorative plate (134) and the middle frame (110), and the fool-proof protrusion (135) is provided on the decorative strip (133).

3. The air conditioner indoor unit according to claim 2, characterized in that: The decorative strip (133) comprises an outer frame portion (1331) and a rib group (1332) connected to each other, wherein the outer frame portion (1331) cooperates with the end edge of the middle frame (110); the rib group (1332) is located in the space enclosed by the outer frame portion (1331), and the outer frame portion (1331) and / or the rib group (1332) are provided with the anti-fool protrusion (135).

4. The air conditioner indoor unit according to claim 3, characterized in that: The rib group (1332) comprises a first rib portion (1333), a second rib portion (1334) and a third rib portion (1335), wherein the first rib portion (1333) extends along the center line of the outer frame portion (1331), and one end of the first rib portion (1333) is connected to the outer frame portion (1331), and the second rib portion (1334) and the third rib portion (1335) are both connected to the other end of the first rib portion (1333); the end of the second rib portion (1334) away from the first rib portion (1333) is connected to the outer frame portion (1331), and the end of the third rib portion (1335) away from the first rib portion (1333) is connected to the outer frame portion (1331), and the second rib portion (1334) and the third rib portion (1335) are respectively located on both sides of the center line of the outer frame portion (1331).

5. The air conditioner indoor unit according to claim 4, characterized in that: The anti-fool-proofing protrusion (135) includes a first anti-fool-proofing protrusion (136) and a second anti-fool-proofing protrusion (137), wherein the first anti-fool-proofing protrusion (136) is arranged on the second rib portion (1334), and the second anti-fool-proofing protrusion (137) is arranged on the third rib portion (1335), and the first anti-fool-proofing protrusion (136) and the second anti-fool-proofing protrusion (137) are asymmetrically arranged with respect to the center line of the outer frame portion (1331).

6. The air conditioner indoor unit according to claim 5, characterized in that: The first fool-proofing protrusion (136) is higher than the second fool-proofing protrusion (137).

7. The air conditioner indoor unit according to claim 1, characterized in that: The number of the fool-proofing protrusions (135) is multiple, a portion of the multiple fool-proofing protrusions (135) is located on one side of the center line of the end cover (130), and another portion of the multiple fool-proofing protrusions (135) is located on the other side of the center line of the end cover (130).

8. The air conditioner indoor unit according to any one of claims 1 to 6, characterized in that: The abutment portion (114) is a protruding structure provided on the end surface of the middle frame (110).

9. An air conditioner, characterized in that: The air conditioner comprises the air conditioner indoor unit (100) according to any one of claims 1 to 8.

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