Air conditioner indoor unit and air conditioner

Abstract

The application discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a shell, and the shell is provided with an air outlet. The air conditioner indoor unit further comprises a guide frame, an upper gear box arranged above the guide frame, and a first motor connected to the upper gear box. The guide frame is rotatably installed at the air outlet. The upper gear box comprises a bottom shell and a top cover. The top cover is formed with a mounting cavity, and the first motor is arranged in the mounting cavity. Alternatively, the air conditioner indoor unit further comprises a guide frame, a lower gear box arranged below the guide frame, a second motor connected to the bottom of the lower gear box, and a moisture-proof cover arranged on the second motor. The guide frame is rotatably installed at the air outlet. One of the lower gear box and the top of the moisture-proof cover is provided with a sealing groove, and the other is provided with a sealing rib matched with the sealing groove. The air conditioner indoor unit improves the moisture-proof effect on the motor.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] The air guide frame of the indoor unit of an air conditioner is driven by a gearbox and a drive motor. The drive motor is exposed in the gearbox, which is prone to condensation and poses a safety hazard. Existing technology achieves moisture protection for the motor by adding an additional cover to the surface of each motor, but this method has poor sealing and low moisture protection effect. Summary of the Invention

[0003] The main objective of this invention is to propose an indoor air conditioning unit that addresses the technical problem of improving the moisture-proof performance of the motor.

[0004] To achieve the above objectives, the present invention proposes an air conditioner indoor unit, including a housing with an air outlet. The air conditioner indoor unit further includes: an air guide frame, an upper gear box disposed above the air guide frame, and a first motor connected to the upper gear box. The air guide frame is rotatably mounted on the air outlet. The upper gear box includes a bottom shell and a top cover. The top cover forms a mounting cavity, and the first motor is disposed within the mounting cavity.

[0005] Alternatively, the indoor unit of the air conditioner may further include: an air guide frame, a lower gear box located below the air guide frame, a second motor connected to the bottom of the lower gear box, and a moisture cover covering the second motor; the air guide frame is rotatably mounted on the air outlet, and one of the tops of the lower gear box and the moisture cover is provided with a sealing groove, and the other is provided with a sealing rib adapted to the sealing groove.

[0006] Optionally, the top cover includes a cover body and a mounting cover connected to the cover body. The cover body has a through hole, the opening of the mounting cover is connected to the through hole, the mounting cavity is formed in the mounting cover, and the first motor is mounted in the mounting cavity through the through hole.

[0007] Optionally, the mounting cover is provided with fixing holes, and the housing of the first motor is fixed to the fixing holes by fasteners.

[0008] Optionally, a fixing rib is provided on the upper end of the inner peripheral wall of the mounting cover.

[0009] Optionally, the lower end of the fixing rib is formed with a guide slope to guide the first motor toward the upper end of the fixing rib.

[0010] Optionally, the cover body also has a wiring groove communicating with the mounting cavity, through which the electrical connection wire of the first motor extends to the outside of the cover body.

[0011] Optionally, a limiting rib is provided on the side wall at the opening of the wiring trough to limit and support the electrical connection wire of the first motor.

[0012] Optionally, there are multiple limiting ribs, which are spaced apart along the extension direction of the cable tray and staggered on the two opposite sidewalls of the cable tray.

[0013] Optionally, the sealing groove is formed at the top of the moisture-proof cover and extends circumferentially along the moisture-proof cover, and the sealing rib protrudes from the bottom of the lower gear box and extends circumferentially along the lower gear box.

[0014] Optionally, a wire-passing hole is provided on the side wall of the opening of the moisture-proof cover, and the electrical connection wire of the second motor extends to the outside of the moisture-proof cover through the wire-passing hole.

[0015] Optionally, the bottom of the lower gear box is provided with a plurality of spacer ribs corresponding to the wire passage hole, and a wire passage hole is formed between two adjacent spacer ribs.

[0016] Optionally, the wall of the wire hole extends into the moisture cover to form a positioning groove, the bottom of the spacer rib abuts against the bottom of the positioning groove, and the sidewall of the spacer rib abuts against the sidewall of the positioning groove.

[0017] Optionally, the top of the sidewall of the positioning groove protrudes beyond the opening of the moisture-proof cover; the bottom of the positioning groove is also provided with a limiting strip located outside the spacer rib, and the limiting strip abuts against the lower end of the spacer rib on the sidewall facing the inside of the moisture-proof cover.

[0018] Optionally, a water leakage hole is provided at the bottom of the lower gear box, and a water baffle is formed by the recess of the side wall of the moisture shield corresponding to the water leakage hole. A drain hole is provided at the top of the water baffle opposite to the water leakage hole.

[0019] Optionally, the top of the water baffle platform is provided with a water baffle ring extending circumferentially along the drain hole, and the top of the water baffle ring abuts against the lower gear box.

[0020] The present invention also proposes an air conditioner, including an indoor unit. The indoor unit includes a housing with an air outlet. The indoor unit further includes an air guide frame, an upper gear box disposed above the air guide frame, and a first motor connected to the upper gear box. The air guide frame is rotatably mounted on the air outlet. The upper gear box includes a bottom shell and a top cover. The top cover forms a mounting cavity, and the first motor is disposed within the mounting cavity.

[0021] Alternatively, the indoor unit of the air conditioner may further include: an air guide frame, a lower gear box located below the air guide frame, a second motor connected to the bottom of the lower gear box, and a moisture cover covering the second motor; the air guide frame is rotatably mounted on the air outlet, and one of the tops of the lower gear box and the moisture cover is provided with a sealing groove, and the other is provided with a sealing rib adapted to the sealing groove.

[0022] The present invention provides an air conditioner indoor unit that forms an installation cavity in the top cover of the upper gear box, allowing the first motor to be accommodated within the installation cavity, effectively preventing condensation on the first motor and improving the moisture-proof effect on the first motor; or, by using a sealing groove and sealing rib to achieve a sealed fit between the moisture-proof cover and the lower gear box, effectively preventing condensation on the second motor and improving the moisture-proof effect on the second motor. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a cross-sectional schematic diagram of an embodiment of the indoor unit of the air conditioner of the present invention;

[0025] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of one embodiment of the top cover in this invention;

[0028] Figure 5 This is a schematic diagram of the structure of one embodiment of the moisture-proof cover in this invention;

[0029] Figure 6 This is a schematic diagram of the structure of an embodiment of the indoor unit of the air conditioner of the present invention;

[0030] Figure 7 for Figure 6 A magnified view of a section at point C;

[0031] Figure 8 This is a cross-sectional schematic diagram of another embodiment of the indoor unit of the air conditioner of the present invention;

[0032] Figure 9 for Figure 8 A magnified view of a section at point D.

[0033] Explanation of icon numbers:

[0034]

[0035]

[0036] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0039] This invention proposes an indoor air conditioning unit, which can be a floor-standing unit or a wall-mounted unit, etc. This invention uses a floor-standing unit as an example for illustration, but is not limited to this. The indoor air conditioning unit has an air inlet, an air outlet, and a heat exchange duct connecting the air inlet and the air outlet. The air outlet typically extends vertically. The indoor air conditioning unit usually also includes an indoor heat exchanger located within the heat exchange duct, which is used to regulate the indoor air temperature, such as for cooling or heating. The indoor air conditioning unit also includes a fan wheel located within the heat exchange duct, which drives airflow; the fan wheel can be a cross-flow fan wheel and is located on the air outlet side of the indoor heat exchanger. When the indoor air conditioning unit is operating, the fan wheel drives the indoor airflow, propelling the indoor air from the air inlet into the heat exchange duct. After heat exchange in the indoor heat exchanger, the flowing air flows to the air outlet and is then discharged via the air guide frame 10.

[0040] In embodiments of the present invention, such as Figures 1 to 9 As shown, the indoor unit of the air conditioner also includes: an air guide frame 10, an upper gear box 20 disposed above the air guide frame 10, and a first motor 30 connected to the upper gear box 20; the air guide frame 10 is rotatably mounted on the air outlet, the upper gear box 20 includes a bottom shell 21 and a top cover 22, the top cover 22 forms a mounting cavity 221, and the first motor 30 is disposed in the mounting cavity 221;

[0041] Alternatively, the indoor unit of the air conditioner may further include: an air guide frame 10, a lower gear box 40 disposed below the air guide frame 10, a second motor 50 connected to the bottom of the lower gear box 40, and a moisture cover 60 covering the second motor 50; the air guide frame 10 is rotatably mounted on the air outlet, and one of the tops of the lower gear box 40 and the moisture cover 60 is provided with a sealing groove 61, and the other is provided with a sealing rib 41 adapted to the sealing groove 61.

[0042] In this embodiment, the air guide frame 10 is rotatably mounted at the air outlet of the indoor unit of the air conditioner, and the rotation axis of the air guide frame 10 extends longitudinally to change the air supply direction of the indoor unit in the horizontal direction. The first motor 30 is used to drive the gear assembly in the upper gear box 20 to drive the air guide frame 10 to rotate; the second motor 50 is used to drive the gear assembly in the lower gear box 40 to drive the air guide frame 10 to rotate. The mounting cavity 221 is formed by a recess on the inner wall surface of the top cover 22. The lateral dimension of the mounting cavity 221 can be larger than the lateral dimension of the first motor 30, or it can be adapted to the first motor 30, as long as the first motor 30 can be accommodated in the mounting cavity 221. The first motor 30 is accommodated in the mounting cavity 221, which is equivalent to being accommodated in the upper gear box 20 together with the gear assembly. This can effectively isolate the first motor 30 from the airflow around the upper gear box 20, prevent condensation on the surface of the first motor 30, and thus improve the moisture-proof effect of the first motor 30.

[0043] The moisture cover 60 and the lower gear box 40 are sealed together by the sealing rib 41 and the sealing groove 61 to improve the sealing performance of the moisture cover 60 and the lower gear box 40, thereby improving the moisture protection effect on the second motor 50. In practical applications, the indoor unit of the air conditioner also includes louvers located on the air guide frame 10, and a third motor that drives the louvers to swing. The third motor is also installed at the bottom of the lower gear box 40, and the moisture cover 60 can cover the third motor at the same time to improve the utilization rate of the moisture cover 60.

[0044] The indoor unit of the air conditioner of the present invention forms an installation cavity 221 in the top cover 22 of the upper gear box 20, so that the first motor 30 can be accommodated in the installation cavity 221, effectively preventing condensation on the first motor 30 and improving the moisture-proof effect of the first motor 30; or, the moisture-proof cover 60 and the lower gear box 40 are sealed together by the sealing groove 61 and the sealing rib 41, effectively preventing condensation on the second motor 50 and improving the moisture-proof effect of the second motor 50.

[0045] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), these directional indications are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. Furthermore, if the embodiments of the present invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0046] Specifically, such as Figure 2 and Figure 4 As shown, the top cover 22 includes a cover body 222 and a mounting cover 223 connected to the cover body 222. The cover body 222 has a through hole, and the opening of the mounting cover 223 is connected to the through hole. The mounting cavity 221 is formed in the mounting cover 223, and the first motor 30 is mounted in the mounting cavity 221 through the through hole. In this embodiment, the opening of the mounting cover 223 faces downward and is connected to the through hole from the back of the cover body 222. The first motor 30 is located above the bottom shell 21. When the top cover 22 covers the bottom shell 21, the mounting cover 223 covers the first motor 30 to house the first motor 30 inside the top cover 22. This reduces the size of the mounting cover 223 and the space occupied by the mounting cover 223. The mounting cover 223 can be integrally set with the cover body 222 to improve the production efficiency of the top cover 22.

[0047] In practical applications, such as Figure 2 and Figure 4 As shown, the mounting cover 223 is provided with a fixing hole 224, and the housing of the first motor 30 is fixed to the fixing hole 224 by fasteners. In this embodiment, the bottom wall of the cover 222 is recessed upwards with a fixing groove communicating with the mounting cavity 221, the fixing hole 224 is opened at the bottom of the fixing groove, and the housing of the first motor 30 is provided with a fastening hole. The fastening hole and the fixing hole 224 can be connected in series by fasteners to achieve a fixed fit between the first motor 30 and the mounting cover 223.

[0048] In one embodiment, such as Figure 2 and Figure 4 As shown, a fixing rib 225 protrudes from the upper end of the inner peripheral wall of the mounting cover 223. In this embodiment, the fixing rib 225 is fixedly abutted against the peripheral wall of the first motor 30 to achieve a fixed fit between the first motor 30 and the mounting cover 223. The number of fixing ribs 225 can be multiple and spaced apart along the circumference of the mounting cover 223 to increase the mating parts and mating area with the first motor 30, thereby improving the assembly stability of the first motor 30.

[0049] Specifically, such as Figure 4 As shown, a guide slope 226 is formed at the lower end of the fixing rib 225 to guide the first motor 30 toward the upper end of the fixing rib 225. In this embodiment, the guide slope 226 is formed on the side of the fixing rib 225 facing away from the inner wall of the mounting cover 223. After the top edge of the first motor 30 contacts the guide slope 226, it can slide along the guide slope 226 to the upper end of the fixing rib 225, thereby reducing the installation difficulty of the first motor 30 and improving the installation efficiency of the first motor 30.

[0050] In one embodiment, such as Figure 4 As shown, the cover 222 also has a wiring groove 227 communicating with the mounting cavity 221. The electrical connection wire of the first motor 30 extends to the outside of the cover 222 through the wiring groove 227. In this embodiment, the wiring groove 227 is open at both ends, with one end communicating with the mounting cavity 221 and the other end communicating with the edge of the cover 222. The electrical connection wire of the first motor 30 can extend along the wiring groove 227 to the outside of the top cover 22 to connect with a power supply or electrical control box. The wiring groove 227 can be bent to allow the electrical connection wire to meander within the cover 222, thereby reducing the amount of electrical connection wire exposed and effectively protecting the electrical connection wire.

[0051] Specifically, such as Figure 4 As shown, a limiting rib 228 protrudes from the side wall of the opening of the wiring trough 227 to limit and support the electrical connection wire of the first motor 30. In this embodiment, since the wiring trough 227 is formed on the top cover 22, the wiring trough 227 is open downwards, and the electrical connection wire abuts against the top surface of the limiting rib 228, so that the electrical connection wire is stably contained in the wiring trough 227, preventing the electrical connection wire from falling into the bottom shell 21 and improving the protection effect of the electrical connection wire.

[0052] In practical applications, such as Figure 4 As shown, there are multiple limiting ribs 228, which are spaced apart along the extension direction of the cable tray 227 and staggered on the two opposite side walls of the cable tray 227. In this embodiment, the multiple limiting ribs 228 are spaced apart along the extension direction of the cable tray 227 on both side walls of the cable tray 227, and the limiting ribs 228 on both side walls of the cable tray 227 are staggered, thereby increasing the support area and support position for the electrical connection wire, and facilitating the insertion of the electrical connection wire into the cable tray 227 from the slot opening.

[0053] In one embodiment, such as Figure 3 , Figure 5 and Figure 7As shown, the sealing groove 61 is formed at the top of the moisture-proof cover 60 and extends circumferentially along the moisture-proof cover 60, and the sealing rib 41 protrudes from the bottom of the lower gear box 40 and extends circumferentially along the lower gear box 40. In this embodiment, the opening of the moisture-proof cover 60 faces upward, and the sealing groove 61 is formed at the open end of the moisture-proof cover 60 and extends circumferentially along the moisture-proof cover 60. The sealing rib 41 protrudes from the bottom of the lower gear box 40, and the shape and position of the sealing rib 41 correspond to the sealing groove 61 to seal and cooperate with the sealing groove 61, thereby improving the moisture-proof effect of the moisture-proof cover 60. A fixing piece can be provided outward at the top of the moisture-proof cover 60, and the fixing piece has a fastening hole. The lower gear box 40 can have a fixing hole 224 corresponding to the fastening hole. The fixing hole 224 and the fastening hole are connected in series by fasteners to realize the fixed assembly of the moisture-proof cover 60 and the lower gear box 40.

[0054] Specifically, such as Figure 5 and Figure 9 As shown, a wiring hole 62 is provided on the side wall of the opening of the moisture-proof cover 60, and the electrical connection wire of the second motor 50 extends to the outside of the moisture-proof cover 60 through the wiring hole 62. In this embodiment, the electrical connection wire of the second motor 50 extends out of the moisture-proof cover 60 through the wiring hole 62 to connect to a power supply or an electrical control box to realize the electric drive of the air guide frame 10.

[0055] In practical applications, such as Figure 7 and Figure 9 As shown, the bottom of the lower gear box 40 is provided with a plurality of spacer ribs 42 corresponding to the wire passage holes 62, and a wire passage hole 43 is formed between two adjacent spacer ribs 42. In this embodiment, the spacer ribs 42 abut against the wall of the wire passage hole 62, and the wire passage hole 43 coincides with the wire passage hole 62, that is, the spacer ribs 42 divide the wire passage hole 43 into a plurality of wire passage holes 62. The bottom of the lower gear box 40 is also provided with a third motor for driving the louvers to swing, and a fourth motor for driving the air conditioner door to open and close. The electrical connection wires of each motor extend out of the moisture cover 60 through each wire passage hole 62, so as to separate the electrical connection wires of different motors, making the wiring of the air conditioner indoor unit more reasonable and orderly.

[0056] In one embodiment, such as Figure 7 and Figure 9 As shown, the wall of the wire hole 62 extends into the moisture-proof cover 60 to form a positioning groove. The bottom of the spacer 42 abuts against the bottom of the positioning groove, and the sidewall of the spacer 42 abuts against the sidewall of the positioning groove. In this embodiment, the spacer 42 and the positioning groove are fitted together, which can improve the fit strength and sealing performance, reduce the amount of moisture entering the moisture-proof cover 60, and improve the moisture-proof effect of the moisture-proof cover 60 and the lower gear box 40.

[0057] Specifically, such as Figure 5 , Figure 7 and Figure 9As shown, the top of the sidewall of the positioning groove protrudes beyond the opening of the moisture-proof cover 60; a limiting strip 631 protrudes from the bottom of the positioning groove, located outside the spacer 42, and the limiting strip 631 abuts against the lower end of the spacer 42 against the sidewall inside the moisture-proof cover 60. In this embodiment, the limiting strip 631 extends along the width direction of the positioning groove, and the outer sidewall of the lower end of the spacer 42 abuts against the inner sidewall of the limiting strip 631 to effectively limit the limiting rib 228, preventing the limiting rib 228 from being squeezed out of the positioning groove, thereby improving the stability of the limiting rib 228. The top of the sidewall of the positioning groove protrudes beyond the opening of the moisture-proof cover 60 and can abut against the sealing rib 41, thereby cooperating with the limiting strip 631 to make the limiting rib 228 and the positioning groove interlock and cooperate, improving the cooperation strength.

[0058] In one embodiment, such as Figure 5 , Figure 7 and Figure 9 As shown, a drain hole 44 is provided at the bottom of the lower gear box 40. A water baffle 64 is formed by the recess of the side wall of the moisture shield 60 corresponding to the drain hole 44. A drain hole 641 is provided on the top of the water baffle 64, which is opposite to the drain hole 44. In this embodiment, the drain hole 44 is used to discharge the condensate flowing into the lower gear box 40. The water baffle 64 is located below the drain hole 44, and the drain hole 641 is opposite to the drain hole 44. The area below the drain hole 641 is the outside of the moisture shield 60. Thus, water in the lower gear box 40 can flow out of the moisture shield 60 through the drain hole 44 and the drain hole 641, thereby realizing the drainage function of the moisture shield 60.

[0059] Specifically, such as Figure 5 and Figure 9 As shown, the top of the water-blocking platform 64 is provided with a water-blocking ring 642 extending circumferentially along the drain hole 641, and the top of the water-blocking ring 642 abuts against the lower gear box 40. In this embodiment, when the water-blocking ring 642 abuts against the lower gear box 40, it surrounds the drain hole 44 to prevent condensate from flowing into the moisture-proof cover 60, thereby further improving the drainage performance of the moisture-proof cover 60.

[0060] This invention also proposes an air conditioner, which includes an outdoor unit and an indoor unit. The specific structure of the indoor unit is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here. The outdoor unit is connected to the indoor unit via a refrigerant pipe.

[0061] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit comprising a housing, wherein the housing is provided with an air outlet, characterized in that the air conditioner indoor unit further comprises a guide frame, an upper gear box arranged above the guide frame, and a first motor connected to the upper gear box; the guide frame is rotatably arranged on the air outlet; the upper gear box comprises a bottom shell and a top cover, the top cover is formed with a mounting cavity, and the first motor is arranged in the mounting cavity; the first motor is used to drive the guide frame to rotate; the transverse dimension of the mounting cavity is greater than that of the first motor; the top cover comprises a cover body and a mounting cover connected to the cover body, the cover body is provided with a through hole, the opening of the mounting cover is connected to the through hole, the mounting cavity is formed in the mounting cover, and the first motor is arranged in the mounting cavity through the through hole; a fixing rib is arranged on the upper end of the inner circumferential wall of the mounting cover; and the air conditioner indoor unit further comprises a lower gear box arranged below the guide frame, a second motor connected to the bottom of the lower gear box, and a moisture-proof cover arranged on the second motor; one of the top of the lower gear box and the moisture-proof cover is provided with a sealing groove, and the other is provided with a sealing rib matched with the sealing groove; the second motor is used to drive the guide frame to rotate; the sealing groove extends along the circumference of the moisture-proof cover, and the sealing rib extends along the circumference of the lower gear box; the transverse dimension of the moisture-proof cover is greater than that of the second motor. The mounting cover is provided with a fixing hole, and the shell of the first motor is fixed to the fixing hole through a fastener.

2. The air conditioning indoor unit as claimed in claim 1, wherein, The lower end of the fixing rib is formed with a guide inclined surface to guide the first motor towards the upper end of the fixing rib. 3.The indoor unit of the air conditioner of claim 1, wherein, The cover body is further formed with a wire slot in communication with the mounting cavity, and the electric connection line of the first motor extends to the outside of the cover body through the wire slot.

4. The air conditioning indoor unit as claimed in claim 1, wherein The side wall at the slot opening of the wire slot is provided with a limiting rib for limiting and supporting the electric connection line of the first motor.

5. The air conditioning indoor unit as claimed in claim 4, wherein The number of limiting ribs is multiple, and multiple limiting ribs are arranged at intervals along the extension direction of the wire slot and are distributed on the two opposite side walls of the wire slot. 6.The indoor unit of the air conditioner of claim 5, wherein, The sealing groove is arranged on the top of the moisture-proof cover, and the sealing rib is arranged on the bottom of the lower gear box.

7. The air conditioner indoor unit as claimed in claim 1, wherein The side wall at the opening of the moisture-proof cover is provided with a wire hole, and the electric connection line of the second motor extends to the outside of the moisture-proof cover through the wire hole. 8.The indoor unit of the air conditioner of claim 1, wherein, The bottom of the lower gear box is provided with multiple interval ribs corresponding to the wire hole, and a wire slot is formed between adjacent two interval ribs. 9.The indoor unit of the air conditioner of claim 8, wherein, The hole wall of the wire hole extends towards the inside of the moisture-proof cover to form a positioning groove, the bottom of the interval rib abuts against the groove bottom of the positioning groove, and the side wall of the interval rib abuts against the side wall of the positioning groove. 10.The indoor unit of the air conditioner of claim 9, wherein, The top of the side wall of the positioning groove protrudes from the opening of the moisture-proof cover; the groove bottom of the positioning groove is further provided with a limiting strip located outside the interval rib, and the limiting strip abuts against the lower end of the interval rib towards the side wall inside the moisture-proof cover. 11.The indoor unit of the air conditioner of claim 10, wherein, The bottom of the lower gear box is provided with a water leakage hole, the side wall of the moisture-proof cover is recessed to form a water retaining platform corresponding to the water leakage hole, and the top of the water retaining platform is provided with a water drainage hole opposite to the water leakage hole. 12.The indoor unit of the air conditioner of claim 1, wherein, ​ 13.The indoor unit of the air conditioner of claim 12, wherein, The top of the water retaining platform is provided with a water retaining ring extending along the circumference of the drain hole, and the top of the water retaining ring abuts against the lower gear box.

14. An air conditioner characterized by comprising: The indoor unit of the air conditioner comprises the indoor unit as claimed in any one of claims 1 to 13.

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