CN216307977U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The application relates to household electrical appliances technical field discloses machine in air conditioning, includes: the air duct framework is arranged in the shell and comprises a front panel positioned on one side of the air duct framework and a lower decorative plate positioned on one side of the front panel far away from the air duct framework; the plug-in component comprises a plurality of first plug-in parts which are arranged on one side of the air duct framework facing the front panel along the longitudinal direction of the air duct framework, and a plurality of second plug-in parts which are arranged on the lower decorative plate and are positioned on one side of the lower decorative plate close to the front panel; each first plugging portion corresponds to one second plugging portion, a through hole is formed in the front panel corresponding to each first plugging portion, and the first plugging portions and the second plugging portions can form plugging fit connection through the through holes. The first inserting part of the air duct framework is connected with the second inserting part of the lower decorative plate in an inserting and matching mode through the through hole of the front panel, and the air duct framework and the lower decorative plate are detachably inserted. The embodiment of the disclosure also discloses an air conditioner.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The application relates to the technical field of household appliances, for example to an air conditioner indoor unit and an air conditioner.

Background

At present, with the improvement of the living standard of people, the household air conditioner gradually becomes an indispensable household appliance for people. The air conditioner generally comprises an indoor unit and an outdoor unit, wherein a casing of the indoor unit is mainly composed of a front frame, a chassis and a lower decorative plate, a front panel of the front frame is attached to the lower decorative plate, and a fan assembly is installed in the casing.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the prior art discloses an air conditioning indoor unit, lower plaque pastes and leans on in the front panel, and its front panel passes through buckle subassembly joint in wind channel skeleton. However, there is no corresponding connection structure between the duct framework and the front panel.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner indoor unit and an air conditioner.

In some embodiments, the air conditioning indoor unit includes:

the air duct framework is arranged in the shell and comprises a front panel positioned on one side of the air duct framework and a lower decorative plate positioned on one side of the front panel far away from the air duct framework;

the plug-in component comprises a plurality of first plug-in parts which are arranged on one side of the air duct framework facing the front panel along the longitudinal direction of the air duct framework, and a plurality of second plug-in parts which are arranged on the lower decorative plate and are positioned on one side of the lower decorative plate close to the front panel;

each first plugging portion corresponds to one second plugging portion, a through hole is formed in the front panel corresponding to each first plugging portion, and the first plugging portions and the second plugging portions can form plugging fit connection through the through holes.

Optionally, the first inserting part comprises an inserting column which is arranged on the air duct framework and extends and forms towards the through hole;

the second inserting part comprises an inserting cylinder which extends to the inserting column through the through hole and is provided with an inserting hole facing to the inserting column; the inserting column is inserted into the inserting cylinder through the inserting hole.

Optionally, the insertion column is configured as a cylinder with a circular or regular polygonal cross section;

the section of the plug hole is matched with that of the plug column, so that the side face of the plug column is attached to the inner wall of the plug hole.

Optionally, the socket cylinder and the lower decorative plate are integrally formed; the inserting column and the air duct framework are integrally formed.

Optionally, the side surface of the insertion tube is attached to the inner wall of the through hole, and the through hole is close to the periphery of one end of the air duct framework and protrudes towards the air duct framework to form the enclosing protrusion.

Optionally, the machine still includes buckle subassembly in the air conditioning, buckle subassembly includes:

the first clamping plate is rotatably arranged on one side, away from the air duct framework, of the lower decorative plate and is provided with a clamping hook facing the air duct framework;

the clamping hooks pass through the holes, and the two clamping hooks pass through the holes and are respectively arranged on the lower decorative plate and the front panel corresponding to the clamping hooks;

the joint hole corresponds the pothook set up in the wind channel skeleton, just the pothook accessible the pothook pass the hole with the joint hole constitutes the joint cooperation and is connected.

Optionally, a surface of the lower decorative plate corresponding to the first buckle plate is recessed inwards to form a buckle mounting groove for accommodating the first buckle plate;

the side surface of the first buckle plate is provided with a clamping protrusion, the wall of the buckle mounting groove corresponding to the clamping protrusion is provided with a clamping recess, when the first buckle plate rotates to the clamping position, the clamping protrusion sinks into the clamping recess, and the clamping protrusion and the clamping recess form clamping matching connection.

Optionally, the fastening assembly further includes a second fastening plate pivotally connected to the lower decorative plate and located on a side of the lower decorative plate away from the air duct framework; the first buckling plate is pivoted to the second buckling plate, and the second buckling plate can drive the first buckling plate to rotate to a clamping position through pivoting.

Optionally, the second buckle plate has a lap joint plate section facing the air duct framework;

the lower decorative plate and the front panel are respectively provided with a lapping hole corresponding to the lapping plate section, so that the lapping plate section extends into one side of the front panel close to the air duct framework through the lapping hole.

In some embodiments, the air conditioner includes the indoor unit of the air conditioner in any one of the above embodiments.

The air conditioner indoor unit and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

one side of the air duct framework facing the front panel is longitudinally provided with a plurality of first inserting parts along the air duct framework, a through hole is formed in each first inserting part corresponding to the front panel, one side of the lower decorative plate facing the front panel is provided with a plurality of second inserting parts in one-to-one correspondence with the first inserting parts, therefore, the first inserting parts of the air duct framework form inserting matching connection with the second inserting parts of the lower decorative plate through the through holes of the front panel, and the air duct framework and the lower decorative plate are detachably inserted.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic diagram of a housing structure provided by an embodiment of the present disclosure;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view of a skeleton structure of an air duct provided in an embodiment of the present disclosure;

FIG. 4 is an enlarged view of portion B of FIG. 3;

FIG. 5 is an exploded schematic view of a lower fascia and a front panel provided by an embodiment of the disclosure;

FIG. 6 is a schematic view of a lower trim panel structure provided by embodiments of the present disclosure;

FIG. 7 is a schematic diagram of a front panel structure provided by an embodiment of the present disclosure;

FIG. 8 is an exploded schematic view of a buckle assembly provided by embodiments of the present disclosure;

fig. 9 is an exploded view of another angle snap assembly provided by embodiments of the present disclosure.

Reference numerals:

100: a lower decorative plate; 110: the hook penetrates through the hole; 120: a buckle mounting groove; 121: a chucking depression; 122: a protective projection; 130: the rotating shaft is protruded; 140: a lap joint hole;

200: a front panel; 210: a through hole; 211: the surrounding baffle is convex; 300: an air duct framework; 310: a clamping and connecting plate; 311: a clamping hole; 400: inserting the column; 500: a plug-in barrel;

600: a first buckle plate; 610: a hook; 611: hooking and folding edges; 620: a first pivot shaft; 630: a clamping protrusion; 640: a first avoidance port;

700: a second buckle plate; 710: overlapping the plate sections; 720: a second pivot shaft; 730: and a second avoidance port.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 9, an embodiment of the present disclosure provides an indoor unit of an air conditioner, including a casing and a plug assembly. Wherein, the interior of the casing is provided with an air duct framework 300, which comprises a front panel 200 positioned at one side of the air duct framework 300 and a lower decorative plate 100 positioned at one side of the front panel 200 far away from the air duct framework 300; the plug assembly comprises a plurality of first plug parts which are arranged on one side of the air duct framework 300 facing the front panel 200 along the longitudinal direction of the air duct framework, and a plurality of second plug parts which are arranged on the lower decorative plate 100 and are positioned on one side of the lower decorative plate close to the front panel 200; each first plugging portion corresponds to a second plugging portion, a through hole 210 is formed in the front panel 200 corresponding to each first plugging portion, and the first plugging portion and the second plugging portion can form a plugging fit connection through the through hole 210.

By adopting the air-conditioning indoor unit provided by the embodiment of the disclosure, one side of the air duct framework 300 facing the front panel 200 is longitudinally provided with a plurality of first inserting parts along the air-conditioning indoor unit, one through hole 210 is formed in each first inserting part corresponding to the front panel 200, one side of the lower decorative plate 100 facing the front panel 200 is provided with a plurality of second inserting parts corresponding to the first inserting parts one to one, so that the first inserting parts of the air duct framework 300 and the second inserting parts of the lower decorative plate 100 form inserting matching connection through the through holes 210 formed in the front panel 200, and the air duct framework 300 and the lower decorative plate 100 are detachably inserted.

In some embodiments, the indoor unit of the air conditioner is a wall-mounted air conditioner, and the casing of the air conditioner is surrounded by a front frame, a lower decorative plate 100 and a chassis of the casing, and the air duct frame 300 is horizontally arranged in the casing along the longitudinal direction of the air duct frame. Wherein, the chassis of the machine shell is positioned at the rear side of the air duct framework 300; the front frame is positioned at the front upper part of the air duct framework 300 and comprises a front panel 200 positioned at the front side of the air duct framework 300; the lower decorative plate 100 is located at the front lower part of the air duct frame 300, the lower decorative plate 100 is provided with an air outlet, and the plate section of the lower decorative plate 100 located above the air outlet is arranged at one side of the front panel 200 far away from the air duct frame 300 in an attaching manner.

Furthermore, the rear side of the air duct framework 300 is connected to the chassis of the chassis through a rear side connection structure, the lower portion of the air duct framework 300 is supported by the plate section of the lower decorative plate 100 located below the air outlet, and the front side of the air duct framework 300 is inserted into the plate section of the lower decorative plate 100 located above the air outlet through an insertion component.

In some embodiments, as shown in fig. 5, the first plugging portion includes a plugging column 400 disposed on the air duct framework 300 and extending toward the through hole 210; the second socket part includes a socket cylinder 500 extending to the socket post 400 through the through hole 210 and having an insertion hole facing the socket post 400; the insertion column 400 is inserted into the insertion cylinder 500 through the insertion hole. Thus, the air duct frame 300 is inserted into the insertion tube 500 of the lower decorative plate 100 through the insertion column 400.

Further, the lower decorative plate 100 is attached to the front panel 200, and the insertion tube 500 of the lower decorative plate 100 extends to the air duct frame 300 through the through hole 210 of the front panel 200.

Furthermore, the air duct frame 300 is provided with two insertion columns 400 at the left and right sides along the longitudinal direction thereof, the front panel 200 is provided with two through holes 210 corresponding to the two insertion columns 400, and the lower decorative plate 100 is provided with two insertion tubes 500 corresponding to the two insertion columns 400. When the lower decorative plate 100 is installed, the socket tube 500 of the lower decorative plate 100 is aligned with the through hole 210 of the front panel 200, and then the lower decorative plate 100 is attached to the front panel 200, so that the socket tube 500 extends to the air duct frame 300 through the through hole 210.

Further, the docking post 400 is configured as a cylinder having a circular or regular polygonal cross-section; the cross section of the plug hole is matched with the cross section of the plug column 400, so that the side surface of the plug column 400 is attached to the inner wall of the plug hole. Thus, after the plugging column 400 is plugged into the plugging hole, the connection strength between the plugging column 400 and the plugging cylinder 500 can be improved. For example, the cross-section of the plugging column 400 and the cross-section of the plugging hole are circular with equal area, or the cross-sections of the plugging column and the plugging hole are triangular, rectangular or regular hexagon with equal area.

Further, the socket cylinder 500 is integrally formed with the lower decorative plate 100; the insertion column 400 is integrally formed with the duct frame 300. Thus, the connection structure between the socket 500 and the lower trim 100 and the connection structure between the socket pillar 400 and the duct frame 300 can be simplified.

Furthermore, the plug column 400 is detachably connected to the air duct frame 300. The front side of the air duct framework 300 is mainly connected to the lower decorative plate 100 through the insertion column 400, and the whole mass is large after the upper cross-flow fan and the fan motor are installed in the air duct framework 300, so that the gravity borne by the insertion column 400 is large and deformation is possible. In this way, the splicing column 400 and the air duct framework 300 are detachably connected, so that the user can conveniently replace the bending and deforming splicing column 400.

Furthermore, a mounting hole is formed in the position, corresponding to the insertion tube 500, of the air duct framework 300, the cross section of the mounting hole is matched with that of the insertion column 400, and one end of the insertion column 400 can be detachably inserted into the air duct framework 300 through the mounting hole. The side of the one end of the mounting hole that pegs graft post 400 inserts has the rectangular connection key, and the inner wall of mounting hole is seted up the cross section along the degree of depth direction and is the keyway of rectangle, and the keyway is close to the one end of peg graft post 400 and stretches out the mounting hole outward. The rectangular connecting key can enter the key groove along with the inserting column 400 through one end of the key groove extending out of the mounting hole and is connected with the key groove in an interference fit manner. Thus, the coupling strength between the bayonet post 400 and the mounting hole can be improved.

Furthermore, as shown in fig. 7, the side surface of the plug cylinder 500 abuts against the inner wall of the through hole 210, and the periphery of one end of the through hole 210 close to the air duct frame 300 protrudes toward the air duct frame 300 to form the enclosure protrusion 211. Thus, the side surface of the socket tube 500 abuts against the inner wall of the through-hole 210, and the connection strength between the lower decorative plate 100 and the front panel 200 can be improved. Because the thickness of front panel 200 is less, the cartridge 500 passes through easily to take place to rock behind front panel 200 through-hole 210, under the effect that encloses fender arch 211, can effectively block rocking of cartridge 500.

In some embodiments, the air conditioning indoor unit further includes a fastening assembly, and the fastening assembly includes a first fastening plate 600, a hook passing hole 110, and a fastening hole 311. The first buckle plate 600 is rotatably disposed on a side of the lower decorative plate 100 away from the air duct frame 300, and has a hook 610 facing the air duct frame 300; the two hook through holes 110 are respectively arranged on the lower decorative plate 100 and the front panel 200 corresponding to the hooks 610; the clamping hole 311 corresponds to the hook 610 and is disposed on the air duct frame 300, and the hook 610 can pass through the hole 110 and form a clamping fit connection with the clamping hole 311.

Like this, rotate first buckle board 600 and can drive pothook 610 and pass the pothook and pass the hole 110 and stretch to wind channel skeleton 300, and pothook 610 can pass joint hole 311 joint in wind channel skeleton 300. Under the combined action of the plug-in component and the buckle component, the connection strength of the air duct framework 300 and the lower decorative plate 100 is effectively improved.

Further, the hook 610 is configured as a rectangular strip plate, one end of which is connected to the plate surface of the first fastening plate 600 on the side facing the air duct frame 300, the other end of which passes through the hook through hole 110 and extends to the air duct frame 300, and the plate surface of the end is bent towards the upper side of the air duct frame 300 to form a hook flange 611.

Furthermore, one or more reinforcing ribs are disposed at the connection position of the hook 610 and the first fastening plate 600, so as to improve the connection strength between the hook 610 and the first fastening plate 600.

Further, as shown in fig. 3 and 4, the air duct frame 300 has a clamping plate 310 formed by extending toward the clamping hook 610, and the clamping plate 310 is configured as a rectangular plate and has a rectangular clamping hole 311 formed in the middle of the plate surface. When the first fastening plate 600 rotates towards the fastening position, the hooking edge 611 of the hook 610 is driven to extend into the fastening hole 311 from the lower side of the fastening plate 310 to form a fastening fit connection.

Further, as shown in fig. 6, the surface of the lower decorative plate 100 corresponding to the first fastening plate 600 is recessed inward to form a fastening installation groove 120 for accommodating the first fastening plate 600; the side of the first snap-fit plate 600 is provided with a retaining protrusion 630, the wall of the buckle mounting groove 120 corresponding to the retaining protrusion 630 is provided with a retaining recess 121, and when the first snap-fit plate 600 rotates to the retaining position, the retaining protrusion 630 sinks into the retaining recess 121 and the two form a retaining fit connection. Thus, the stability of the first snap-fit plate 600 at the snap-fit position can be improved by the catching protrusion 630 of the first snap-fit plate 600 and the catching recess 121 of the snap-fit mounting groove 120.

Further, the first snap fit plate 600 is configured as a rectangular plate, the snap fit groove 120 is configured as a rectangular groove having an area slightly larger than that of the first snap fit plate 600, and the length direction and the width direction of the first snap fit plate 600 are respectively parallel to each other after the first snap fit plate 600 is fitted into the snap fit groove 120.

Furthermore, the circumference of the clip mounting groove 120 protrudes outward to form a protection protrusion 122, and the sum of the depth of the clip mounting groove 120 and the height of the protection protrusion 122 is greater than or equal to the thickness of the first clip board 600. Like this, after first buckle board 600 installed to buckle mounting groove 120, when first buckle board 600 rotated to the joint position, its face was on a parallel with the bottom surface of buckle mounting groove 120, and its face was located the protection arch 122 inboard. If the sum of the depth of the buckle mounting groove 120 and the height of the protection protrusion 122 is equal to the thickness of the first buckle plate 600, when the first buckle plate 600 rotates to the clamping position, the plate surface of the first buckle plate is flush with the outer edge of the protection protrusion 122, so that the first buckle plate 600 looks flat after being mounted in the buckle mounting groove 120 of the lower decorative plate 100, and the overall appearance of the casing is effectively improved.

Further, the retaining protrusion 630 is formed by protruding the side of the first latch plate 600 and is configured in a rectangular parallelepiped shape, the side of the retaining protrusion 630 facing the bottom of the latch installation groove 120 is inclined toward the outer side of the latch installation groove 120 to form a guide inclined plane, and under the action of the guide inclined plane, the retaining protrusion 630 can quickly enter the retaining recess 121 along the wall of the latch installation groove 120 and form a retaining fit connection therewith.

Further, as shown in fig. 8 and 9, the fastening assembly further includes a second fastening plate 700 pivotally connected to the lower decorative plate 100 and located on a side thereof away from the air duct frame 300; the first fastening plate 600 is pivoted to the second fastening plate 700, and the second fastening plate 700 can drive the first fastening plate 600 to rotate to a fastening position through pivoting. Thus, the second click plate 700 can rotate with respect to the lower trim 100, and the first click plate 600 can rotate with respect to the second click plate 700.

Further, after the cabinet is hung on a wall surface, the surface of the lower decorative plate 100 is perpendicular to the horizontal plane, and the first fastening plate 600 is configured as a rectangular plate and has a width direction perpendicular to the horizontal plane after being mounted to the lower decorative plate 100. The rectangular first avoiding opening 640 is formed in the long side of the first buckle plate 600 located above, and the side line of the rectangular first avoiding opening 640 is parallel to the side line of the rectangular first buckle plate 600. The second latch plate 700 is configured as a rectangular plate, the plate surface of the second latch plate 700 is parallel to the plate surface of the first latch plate 600, a part of the second latch plate 700 is disposed in the first avoiding opening 640, and the edge line of the second avoiding opening 730 is parallel to the edge line of the second latch plate 700. The first pivot shaft 620 penetrates through the side surface of the second snap-fit plate 700, which is located in the first avoiding opening 640, the inner walls of the two sides of the first avoiding opening 640, which correspond to the side surface of the second snap-fit plate 700, are respectively and correspondingly provided with first pivot holes, and the two ends of the first pivot shaft 620 are respectively installed in the corresponding first pivot holes. First pivot axle 620 and first pivot hole adopt clearance fit to be connected between, and first pivot can rotate in first pivot hole, and first chuck 600 can rotate for second chuck 700 through first pivot axle 620.

Furthermore, a second avoidance opening 730 is formed in one side of the second buckle plate 700 facing the first avoidance opening 640, two rotating shaft protrusions 130 are respectively arranged at positions of the lower decorative plate 100 corresponding to two opposite inner walls in the second avoidance opening 730, a second rotating shaft hole is formed in the middle of each rotating shaft protrusion 130, two opposite inner walls of the second avoidance opening 730 respectively protrude towards the corresponding second rotating shaft hole of each rotating shaft protrusion 130 and extend to form a second pivot shaft 720, and one end of each second pivot shaft 720 extends to just pass through the corresponding second rotating shaft hole.

Thus, the first fastening plate 600 is rotated toward the fastening position, the hook 610 is synchronously rotated and fastened in the fastening hole 311 of the air duct frame 300, and then the second fastening plate 700 is rotated toward the opposite direction to the locking position and fixed, and the second fastening plate 700 is tightened and locked with the first fastening plate 600 through the second rotating shaft.

Further, the second fastening plate 700 has a connecting plate section 710 facing the air duct frame 300; the lower decorative plate 100 and the front panel 200 are respectively provided with a lapping hole 140 corresponding to the lapping plate section 710, so that the lapping plate section 710 extends into one side of the front panel 200 close to the air duct frame 300 through the lapping hole 140.

Further, the overlapping plate 710 is configured as a rectangular plate, and two overlapping plate 710 are respectively vertically disposed on two sides of the second fastening plate 700 facing the surface of the air duct frame 300. The lower decorative plate 100 and the front panel 200 are respectively provided with two rectangular overlapping holes 140 corresponding to the two overlapping plate sections 710.

In some embodiments, an air conditioner provided in an embodiment of the present disclosure includes the indoor unit of an air conditioner described in any of the above embodiments.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An indoor unit of an air conditioner, comprising:

the air duct framework is arranged in the shell and comprises a front panel positioned on one side of the air duct framework and a lower decorative plate positioned on one side of the front panel far away from the air duct framework;

the plug-in component comprises a plurality of first plug-in parts which are arranged on one side of the air duct framework facing the front panel along the longitudinal direction of the air duct framework, and a plurality of second plug-in parts which are arranged on the lower decorative plate and are positioned on one side of the lower decorative plate close to the front panel;

each first plugging portion corresponds to one second plugging portion, a through hole is formed in the front panel corresponding to each first plugging portion, and the first plugging portions and the second plugging portions can form plugging fit connection through the through holes.

2. An indoor unit of an air conditioner according to claim 1, wherein the first insertion part includes an insertion column that is provided to the duct frame and is formed to extend toward the through hole;

the second inserting part comprises an inserting cylinder which extends to the inserting column through the through hole and is provided with an inserting hole facing to the inserting column; the inserting column is inserted into the inserting cylinder through the inserting hole.

3. An indoor unit of an air conditioner according to claim 2, wherein the insertion column is constructed as a cylinder having a circular or regular polygonal cross section;

the section of the plug hole is matched with that of the plug column, so that the side face of the plug column is attached to the inner wall of the plug hole.

4. An indoor unit of an air conditioner according to claim 2 or 3, wherein the insertion tube is integrally formed with the lower decorative plate; the inserting column and the air duct framework are integrally formed.

5. An indoor unit of an air conditioner according to claim 2 or 3, wherein a side surface of the insertion tube abuts against an inner wall of the through hole, and a peripheral edge of one end of the through hole close to the duct frame protrudes toward the duct frame to form a surrounding protrusion.

6. An indoor unit of an air conditioner according to claim 1, further comprising a snap assembly, the snap assembly comprising:

the first clamping plate is rotatably arranged on one side, away from the air duct framework, of the lower decorative plate and is provided with a clamping hook facing the air duct framework;

the clamping hooks pass through the holes, and the two clamping hooks pass through the holes and are respectively arranged on the lower decorative plate and the front panel corresponding to the clamping hooks;

the joint hole corresponds the pothook set up in the wind channel skeleton, just the pothook accessible the pothook pass the hole with the joint hole constitutes the joint cooperation and is connected.

7. An indoor unit of an air conditioner according to claim 6, wherein a surface of the lower decorative plate corresponding to the first latch plate is recessed inward to form a latch installation groove for accommodating the first latch plate;

the side surface of the first buckle plate is provided with a clamping protrusion, the wall of the buckle mounting groove corresponding to the clamping protrusion is provided with a clamping recess, when the first buckle plate rotates to the clamping position, the clamping protrusion sinks into the clamping recess, and the clamping protrusion and the clamping recess form clamping matching connection.

8. The indoor unit of an air conditioner according to claim 6 or 7, wherein the fastening assembly further comprises a second fastening plate pivoted to the lower decorative plate and located on a side of the lower decorative plate away from the air duct framework; the first buckling plate is pivoted to the second buckling plate, and the second buckling plate can drive the first buckling plate to rotate to a clamping position through pivoting.

9. An indoor unit of an air conditioner according to claim 8, wherein the second locking plate has an overlapping plate section facing the duct frame;

the lower decorative plate and the front panel are respectively provided with a lapping hole corresponding to the lapping plate section, so that the lapping plate section extends into one side of the front panel close to the air duct framework through the lapping hole.

10. An air conditioner characterized by comprising the indoor unit of an air conditioner according to any one of claims 1 to 9.

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