An indoor unit installation structure, an air conditioner indoor unit, and an air conditioner

Abstract

The present invention discloses an indoor unit installation structure, an air-conditioning indoor unit, and an air conditioner. The indoor unit installation structure includes an upper chassis, an evaporator assembly, and a lower chassis assembly. Among them, the evaporator assembly includes an evaporator body, which is fixedly installed inside the upper chassis. There is a gap between the evaporator body and the upper chassis to define an installation cavity therebetween. One end of the evaporator body is spaced from the upper chassis, so that an access opening is formed at one end of the installation cavity. The lower chassis assembly includes a lower chassis and a blower wheel. The blower wheel is fixedly installed on the lower chassis. The lower chassis is detachably installed in the installation cavity and can enter or exit the installation cavity through the access opening. In the indoor unit installation structure provided by the present invention, the blower wheel can be removed from the installation cavity together with the lower chassis, so that the disassembly and cleaning of the air-conditioning blower wheel can be realized, solving the problem that the existing air-conditioning blower wheel cannot be cleaned.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, in particular to the technical field of air conditioners, and specifically to an indoor unit installation structure, an air conditioner indoor unit, and an air conditioner. Background Art

[0002] The indoor unit of an air conditioner includes a housing and components such as an evaporator and an air outlet device installed in the housing. The air outlet device usually includes a wind wheel, and the wind wheel is installed inside the chassis. Once the air conditioner indoor unit is installed on a wall, generally only components such as the evaporator and filter can be cleaned, and it is impossible to disassemble and clean the air conditioner wind wheel, which is difficult to meet the user's deep cleaning requirements. Bacteria remaining on the wind wheel will have an adverse impact on human health if not cleaned for a long time, which is not conducive to improving the user experience. Summary of the Invention

[0003] The main object of the present invention is to propose an indoor unit installation structure, an air conditioner indoor unit, and an air conditioner, aiming to achieve easy disassembly and assembly of the air conditioner wind wheel and solve the problem that the existing air conditioner wind wheel cannot be cleaned.

[0004] To achieve the above object, the present invention proposes an indoor unit installation structure, including:

[0005] An upper chassis;

[0006] An evaporator assembly, including an evaporator body, the evaporator body is fixedly installed inside the upper chassis, and there is a gap between the evaporator body and the upper chassis to define an installation cavity therebetween. One end of the evaporator body is spaced from the upper chassis, so that an opening is formed at one end of the installation cavity; and,

[0007] A lower chassis assembly, including a lower chassis and a wind wheel, the wind wheel is fixedly installed on the lower chassis, the lower chassis is detachably installed in the installation cavity, and can enter or exit the installation cavity from the opening.

[0008] Optionally, the width of the opening is A, and the maximum dimension of the part of the lower chassis assembly accommodated in the installation cavity along the width direction of the opening is B, |B - A| ≤ 6 mm.

[0009] Optionally, a slide rail for slidably installing the lower chassis is provided inside the upper chassis.

[0010] Optionally, the slide rail includes a straight-section slide rail and an arc-section slide rail sequentially distributed along the direction towards the opening.

[0011] Optionally, the upper chassis is provided with a plurality of heat dissipation holes penetrating through both sides of the upper chassis, and the plurality of heat dissipation holes are distributed on the side wall of the installation cavity.

[0012] Optionally, the shape of the heat dissipation holes is circular, square or oval.

[0013] Optionally, one end of the lower chassis is detachably connected to the upper chassis, and the other end is detachably connected to the evaporator body.

[0014] Optionally, the evaporator assembly further includes an evaporator output pipe, and the evaporator output pipe is connected to the evaporator body;

[0015] The indoor unit mounting structure further includes a fixing pressing plate, and the fixing pressing plate is arranged inside the upper chassis. A channel for the evaporator output pipe to pass through is formed jointly between the fixing pressing plate and the upper chassis to prevent the evaporator output pipe from detaching from the inside of the upper chassis.

[0016] Optionally, first buckles are provided at both ends of the fixing pressing plate, and two first buckle grooves are provided inside the upper chassis. The two first buckle grooves are respectively used for buckling with the two first buckles.

[0017] Optionally, the upper chassis includes an upper chassis body and a connecting plate extending downward from the lower side of the upper chassis body. Both ends of the upper chassis body protrude from the connecting plate, and a protruding portion protrudes from one end of the upper chassis body;

[0018] A guiding surface is provided on one side of the connecting plate facing the protruding portion. The guiding surface and one side of the protruding portion facing the connecting plate cooperate with both ends of the fixing pressing plate respectively, so that the two buckles of the fixing pressing plate move to be buckled with the two buckle grooves.

[0019] Optionally, the indoor unit mounting structure further includes a rat guard plate, and the rat guard plate is arranged inside the upper chassis and at the notch formed between the connecting plate and the upper chassis body. A through hole for the drain pipe to pass through is reserved between the rat guard plate and the fixing pressing plate.

[0020] Optionally, a second buckle groove is provided at one end of the connecting plate facing the protruding portion, and a screw hole is provided on the protruding portion;

[0021] A second buckle is provided at one end of the rat guard plate close to the connecting plate, and the second buckle is used for buckling with the second buckle groove. An installation hole is provided at one end of the rat guard plate close to the protruding portion, and the installation hole cooperates with the screw hole to connect the rat guard plate and the upper chassis through a screw connecting piece.

[0022] Optionally, a clamping protrusion is provided at one end of the rat guard plate close to the protruding portion;

[0023] The convex portion is provided with a support arm extending downward, and the support arm is provided with a support groove with an opening facing the connecting plate, and the support groove is used for the clamping projection to be clamped.

[0024] The present invention further provides an indoor unit of an air conditioner, including an indoor unit installation structure, and the indoor unit installation structure includes:

[0025] An upper chassis;

[0026] An evaporator assembly, including an evaporator body, the evaporator body is fixedly installed inside the upper chassis, and there is a gap between the evaporator body and the upper chassis to define an installation cavity therebetween, and one end of the evaporator body is spaced from the upper chassis so that an opening is formed at one end of the installation cavity; and,

[0027] A lower chassis assembly, including a lower chassis and a wind wheel, the wind wheel is fixedly installed on the lower chassis, the lower chassis is detachably installed in the installation cavity, and can enter the installation cavity from the opening or be removed from the installation cavity.

[0028] The present invention further provides an air conditioner, including an indoor unit of an air conditioner, and the indoor unit of the air conditioner includes an indoor unit installation structure, and the indoor unit installation structure includes:

[0029] An upper chassis;

[0030] An evaporator assembly, including an evaporator body, the evaporator body is fixedly installed inside the upper chassis, and there is a gap between the evaporator body and the upper chassis to define an installation cavity therebetween, and one end of the evaporator body is spaced from the upper chassis so that an opening is formed at one end of the installation cavity; and,

[0031] A lower chassis assembly, including a lower chassis and a wind wheel, the wind wheel is fixedly installed on the lower chassis, the lower chassis is detachably installed in the installation cavity, and can enter the installation cavity from the opening or be removed from the installation cavity.

[0032] In the technical solution provided by the present invention, the indoor unit installation structure includes an upper chassis, an evaporator assembly and a lower chassis assembly. An installation cavity with an opening is defined between one end of the evaporator body and the upper chassis. The lower chassis assembly includes a lower chassis and a wind wheel. The lower chassis assembly is detachably installed in the installation cavity and can enter or be removed from the installation cavity through the opening. Thus, the wind wheel can be removed from the installation cavity together with the lower chassis, so that the disassembly and cleaning of the air conditioner wind wheel can be realized, and the problem that the existing air conditioner wind wheel cannot be cleaned is solved. Description of the Drawings

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on the structures shown in these drawings.

[0034] Figure 1 Assembly schematic diagram of an embodiment of the indoor unit installation structure provided by the present invention;

[0035] Figure 2 For Figure 1 Cross-sectional view at C-C in;

[0036] Figure 3 For Figure 2 Schematic diagram of the movement process of the lower chassis assembly in;

[0037] Figure 4 For Figure 1 Another perspective view of the indoor unit installation structure provided;

[0038] Figure 5 For Figure 1 Schematic diagram of the structure of the upper chassis in;

[0039] Figure 6 For Figure 5 Enlarged schematic diagram at E in;

[0040] Figure 7 For Figure 1 Assembly schematic diagram of the upper chassis, fixed pressing plate, and rat-proof plate in;

[0041] Figure 8 For Figure 7 Enlarged schematic diagram at D in.

[0042] Explanation of the reference numerals in the drawings:

[0043] Label Name Label Name 100 Indoor unit installation structure 1721 Support groove 10 Upper chassis 18 First buckle groove 11 Linear section slide rail 19 Guide surface 12 Arc section slide rail 20 Evaporator body 13 Heat dissipation hole 21 Evaporator output pipe 14 Lock 30 Lower chassis 15 Upper chassis body 40 Wind wheel 16 Connecting plate 50 Fixed pressure plate 161 Second buckle groove 60 Mouse-proof board 17 Protrusion 61 Through hole 171 Screw hole 62 Second buckle 172 Support arm 63 Snap projection

[0044] The realization, functional features, and advantages of the object of the present invention will be further described in conjunction with the embodiments with reference to the accompanying drawings. Specific embodiments

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0046] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0047] In addition, if there are descriptions such as "first", "second", etc. involved in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] The indoor unit of an air conditioner includes a housing and components such as an evaporator and an air outlet device installed in the housing. The air outlet device usually includes a wind wheel, and the wind wheel is installed inside the chassis. Once the indoor unit of the air conditioner is installed on the wall, generally only components such as the evaporator and the filter can be cleaned, and it is impossible to disassemble and clean the air conditioner wind wheel, which is difficult to meet the user's deep cleaning requirements. Bacteria remaining on the wind wheel that are not cleaned for a long time will have an adverse impact on human health and are not conducive to improving the user experience.

[0049] In view of this, the present invention proposes an indoor unit installation structure. Figures 1 to 8 Shown is an embodiment of the indoor unit installation structure provided by the present invention. Refer to Figures 1 to 3 As shown, in this embodiment, the indoor unit installation structure 100 includes an upper chassis 10, an evaporator assembly, and a lower chassis assembly. Among them, the evaporator assembly includes an evaporator body 20, and the evaporator body 20 is fixedly installed inside the upper chassis 10. There is a gap between the evaporator body 20 and the upper chassis 10 to define an installation cavity therebetween. One end of the evaporator body 20 is spaced from the upper chassis 10 so that an opening is formed at one end of the installation cavity. The lower chassis assembly includes a lower chassis 30 and a wind wheel 40. The wind wheel 40 is fixedly installed on the lower chassis 30. The lower chassis 30 is detachably installed in the installation cavity and can enter or exit the installation cavity from the opening.

[0050] In the technical solution provided by the present invention, the indoor unit installation structure 100 includes an upper chassis 10, an evaporator assembly, and a lower chassis assembly. An installation cavity with an access opening is defined between one end of the evaporator body 20 and the upper chassis 10. The lower chassis assembly includes a lower chassis 30 and a wind wheel 40. The lower chassis assembly is detachably installed in the installation cavity and can enter the installation cavity from the access opening or be removed from the installation cavity. Thus, the wind wheel 40 can be removed from the installation cavity along with the lower chassis 30, so that the disassembly and cleaning of the air conditioner wind wheel can be realized, and the problem that the existing air conditioner wind wheel cannot be cleaned is solved.

[0051] A certain dimensional relationship is satisfied between the lower chassis assembly and the access opening, so that the easy disassembly and assembly of the lower chassis assembly can be realized. Specifically, in this embodiment, refer to Figure 3 As shown, the width of the access opening is A, and the maximum dimension of the part of the lower chassis assembly accommodated in the installation cavity along the width direction of the opening is B, and |B - A| ≤ 6 mm. It can be understood that the width A of the access opening is the distance between the spaced end of the evaporator body 20 and the upper chassis 10 and the inner side of the upper chassis 10. The maximum dimension of the part of the lower chassis assembly accommodated in the installation cavity along the width direction of the opening, that is, the maximum effective length of the lower chassis assembly during the movement. By setting |B - A| ≤ 6 mm, the lower chassis assembly can smoothly move out of or enter the installation cavity, realizing the easy disassembly and assembly experience of the lower chassis assembly.

[0052] The way that the lower chassis assembly can enter the installation or be removed from the installation cavity can be a sliding connection or the like between the lower chassis assembly and the installation cavity. In this embodiment, a slide rail for slidably installing the lower chassis 30 is provided on the inner side of the upper chassis 10. Thus, the lower chassis 30 can slide in the installation cavity formed by the upper chassis 10 and the evaporator body 20, making the installation structure of the lower chassis 30 more reliable and the movement more convenient.

[0053] Furthermore, refer to Figure 5 and Figure 7 As shown, the slide rail includes a straight-section slide rail 11 and an arc-section slide rail 12 that are sequentially distributed along the direction towards the access opening. Thus, the setting of the straight-section slide rail 11 facilitates the back-and-forth sliding of the lower chassis 30, and the setting of the arc-section slide rail 12 facilitates the sliding in and out of the lower chassis 30, improving the stability of the sliding process of the lower chassis 30.

[0054] Even further, refer to Figure 5 and Figure 7As shown, the upper chassis 10 is provided with a plurality of heat dissipation holes 13 penetrating through both sides of the upper chassis 10. The plurality of heat dissipation holes 13 are distributed on the side wall of the installation cavity, that is, the heat dissipation holes 13 are provided on the part of the upper chassis 10 located inside the installation cavity. Thus, through the setting of the heat dissipation holes 13, it is convenient for heat dissipation during the operation of the whole air conditioner, and the generation of condensed water is reduced. Preferably, the heat dissipation holes 13 are located between the linear section slide rail 11 and the arc section slide rail 12. Thus, the setting of the heat dissipation holes 13 is more convenient for heat dissipation during the operation of the impeller 40.

[0055] The shape of the heat dissipation holes 13 is not limited. It can be a regular shape such as a circle, an ellipse, a triangle, a quadrilateral, etc., or an irregular shape such as a special shape. In this embodiment, it is preferably set as a circle, a square or an ellipse. Thus, it is more convenient for the forming and processing of the heat dissipation holes 13 and is also more beautiful.

[0056] Refer to Figure 2 and Figure 3 As shown, in this embodiment, the connection relationship between the lower chassis assembly and the upper chassis 10 and the evaporator body 20 is as follows: one end of the lower chassis 30 is detachably connected to the upper chassis 10, and the other end is detachably connected to the evaporator body 20. The impeller 40 is installed on one side of the lower chassis 30 and is located inside the installation cavity. Specifically, the lower ends of the lower chassis 30 and the upper chassis 10 are connected by a buckle 14. Thus, on the basis of ensuring the reliable connection between the upper chassis 10 and the lower chassis 30, the number of screws used is reduced, and the installation steps are also simplified.

[0057] Further refer to Figure 4 、 Figure 5 and Figure 7 As shown, the evaporator assembly further includes an evaporator output pipe 21, and the evaporator output pipe 21 is connected to the evaporator body 20; the indoor unit installation structure 100 further includes a fixed pressing plate 50. The fixed pressing plate 50 is arranged inside the upper chassis 10. A channel for the evaporator output pipe 21 to pass through is jointly formed between the fixed pressing plate 50 and the upper chassis 10 to limit the evaporator output pipe 21 from detaching from the inside of the upper chassis 10. Thus, the evaporator output pipe 21 is fixed to the inside of the upper chassis 10 by the fixed pressing plate 50 to prevent the evaporator output pipe 21 from bouncing open, improving the installation reliability of the evaporator assembly. At the same time, compared with the traditional assembly method of installing the fixed pressing plate 50 on the outside of the upper chassis 10, in this embodiment, by installing the fixed pressing plate 50 on the inside of the upper chassis 10, it is convenient for the front disassembly of the evaporator component.

[0058] The fixed pressing plate 50 and the upper chassis 10 can be connected by connecting members such as screws, or can be connected by snap connections. In this embodiment, snap connections are preferably used, making the installation steps of the fixed pressing plate 50 more convenient. Specifically, referring to Figure 6 and Figure 8 As shown, both ends of the fixed pressing plate 50 are provided with first snap fasteners, and two first snap grooves 18 are provided on the inner side of the upper chassis 10. The two first snap grooves 18 are respectively used for snap-fitting with the two first snap fasteners. In this way, the fixed pressing plate 50 adopts a screwless structural design, improving the assembly efficiency of the fixed pressing plate 50.

[0059] Further referring to Figure 5 and Figure 6 As shown, the upper chassis 10 includes an upper chassis body 15 and a connecting plate 16 extending downward from the lower side of the upper chassis body 15. Both ends of the upper chassis body 15 protrude from the connecting plate 16. One end of the upper chassis body 15 (in this embodiment, the end for fixedly installing the evaporator output pipe 21 and the air conditioner electronic control box assembly) is convexly provided with a protruding portion 17; a guiding surface 19 is provided on one side of the connecting plate 16 facing the protruding portion 17. The guiding surface 19 and one side of the protruding portion 17 facing the connecting plate 16 respectively cooperate with both ends of the fixed pressing plate 50, so that the two snap fasteners of the fixed pressing plate 50 move to be snap-fitted with the two snap grooves. A guiding slide rail is formed jointly by the guiding surface 19 and one side of the protruding portion 17 facing the connecting plate 16, for the fixed pressing plate 50 to move along the guiding slide rail to make the two snap fasteners snap-fitted with the two snap grooves during installation, improving the installation accuracy and installation efficiency of the fixed pressing plate 50.

[0060] In addition, referring to Figure 4 、 Figure 5 and Figure 7 As shown, the indoor unit installation structure 100 further includes a mouse-proof plate 60. The mouse-proof plate 60 is provided inside the upper chassis 10 and at the notch formed between the connecting plate 16 and the upper chassis body 15. A through hole 61 for the drain pipe to pass through is reserved between the mouse-proof plate 60 and the fixed pressing plate 50. Through the arrangement of the mouse-proof plate 60, it is prevented that mice enter the electronic control box from the bottom of the air conditioner chassis, causing problems such as machine failures.

[0061] The connection between the mouse-proof plate 60 and the upper chassis 10 is also connected by connecting members such as screws, or connection methods such as snap connections are adopted. In this embodiment, further referring to Figure 6 and Figure 8As shown, one end of the connecting plate 16 facing the protruding portion 17 is provided with a second buckle groove 161, and the protruding portion 17 is provided with a screw hole 171; one end of the rat guard plate 60 close to the connecting plate 16 is provided with a second buckle 62, and the second buckle 62 is used to engage with the second buckle groove 161. One end of the rat guard plate 60 close to the protruding portion 17 is provided with a mounting hole, and the mounting hole cooperates with the screw hole 171 to connect the rat guard plate 60 and the upper chassis 10 through a screw connector. In this way, the rat guard plate 60 and the upper chassis 10 are fixedly connected by screws and buckles, so that although the rat guard plate 60 is located at the notch formed between the connecting plate 16 and the upper chassis body 15, the installation reliability and stability of the rat guard plate 60 can be ensured.

[0062] To further improve the installation reliability of the rat guard plate 60, refer to Figure 6 and Figure 8 As shown, one end of the rat guard plate 60 close to the protruding portion 17 is provided with a clamping projection 63; the protruding portion 17 is provided with a support arm 172 extending downward, and the support arm 172 is provided with a support groove 1721 with an opening facing the connecting plate 16, and the support groove 1721 is used for the clamping projection 63 to be clamped. In this way, the support arm 172 plays an auxiliary supporting role for the rat guard plate 60, further ensuring the stable installation of the rat guard plate 60.

[0063] The present invention also provides an indoor unit of an air conditioner, including an indoor unit installation structure 100. The specific structure of the indoor unit installation structure 100 refers to the above embodiments. Since the indoor unit of the air conditioner of the present invention adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0064] The present invention also provides an air conditioner, including an indoor unit of an air conditioner. The specific structure of the indoor unit refers to the above embodiments. Since the air conditioner of the present invention adopts all the technical solutions of the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated here one by one.

[0065] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An indoor unit installation structure, characterized in that, including: upper chassis; an evaporator assembly, including an evaporator body, the evaporator body is fixedly installed inside the upper chassis, there is a gap between the evaporator body and the upper chassis to define an installation cavity therebetween, one end of the evaporator body is spaced from the upper chassis so that an opening is formed at one end of the installation cavity; and, a lower chassis assembly, including a lower chassis and a wind wheel, the wind wheel is fixedly installed on the lower chassis, the lower chassis is detachably installed in the installation cavity and can enter the installation cavity from the opening or move out of the installation cavity; a slide rail for slidably installing the lower chassis is provided inside the upper chassis, the slide rail includes a linear section slide rail and an arc section slide rail sequentially distributed along the direction towards the opening; the upper chassis is provided with a plurality of heat dissipation holes penetrating through both sides of the upper chassis, and the heat dissipation holes are located between the linear section slide rail and the arc section slide rail.

2. The indoor unit installation structure according to claim 1, characterized in that, The width of the opening is A, and the maximum dimension of the part of the lower chassis assembly accommodated in the installation cavity along the width direction of the opening is B, and |B - A| ≤ 6 mm.

3. The indoor unit installation structure according to claim 1, characterized in that, One end of the lower chassis is detachably connected to the upper chassis, and the other end is detachably connected to the evaporator body.

4. The indoor unit installation structure according to claim 1, wherein, The shape of the heat dissipation holes is circular, square or oval.

5. The indoor unit installation structure according to claim 1, wherein, The evaporator assembly further includes an evaporator output pipe, and the evaporator output pipe is connected to the evaporator body; The indoor unit installation structure further includes a fixed pressing plate, the fixed pressing plate is arranged inside the upper chassis, and a channel for the evaporator output pipe to pass through is jointly formed between the fixed pressing plate and the upper chassis to prevent the evaporator output pipe from detaching from the inside of the upper chassis.

6. The indoor unit installation structure according to claim 5, characterized in that, First buckles are provided at both ends of the fixed pressing plate, and two first buckle grooves are provided inside the upper chassis, and the two first buckle grooves are respectively used for buckling with the two first buckles.

7. The indoor unit installation structure according to claim 6, characterized in that, The upper chassis includes an upper chassis body and a connecting plate extending downward from the lower side of the upper chassis body, both ends of the upper chassis body protrude from the connecting plate, and a protruding portion is convexly provided at one end of the upper chassis body; A guiding surface is provided on one side of the connecting plate facing the protruding portion, and the guiding surface and one side of the protruding portion facing the connecting plate are respectively matched with both ends of the fixed pressing plate to move the two buckles of the fixed pressing plate to buckle with the two buckle grooves.

8. The indoor unit installation structure according to claim 7, wherein, The indoor unit installation structure further includes a rat-proof plate, the rat-proof plate is arranged inside the upper chassis and at the notch formed between the connecting plate and the upper chassis body, and a through hole for the drain pipe to pass through is reserved between the rat-proof plate and the fixed pressing plate.

9. The indoor unit installation structure according to claim 8, characterized in that, A second buckle groove is provided at one end of the connecting plate facing the protruding portion, and a screw hole is provided on the protruding portion; A second buckle is provided at one end of the rat-proof plate close to the connecting plate, and the second buckle is used for buckling with the second buckle groove. An installation hole is provided at one end of the rat-proof plate close to the protruding portion, and the installation hole is matched with the screw hole to connect the rat-proof plate and the upper chassis through a screw connecting piece.

10. The indoor unit installation structure according to claim 8, characterized in that, A convex is provided at one end of the rat-proof plate close to the protruding portion; The convex portion is provided with a support arm extending downward, and the support arm is provided with a support groove with an opening facing the connecting plate, and the support groove is used for the snap projection to be snap-connected.

11. An air conditioner indoor unit, characterized in that, It includes an indoor unit installation structure according to any one of claims 1 to 10.

12. An air conditioner, characterized in that, It includes an air-conditioning indoor unit according to claim 11.

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