An air conditioner indoor unit

Abstract

The application provides an indoor unit of an air conditioner, and relates to the field of air conditioners. The indoor unit comprises a base, a filter screen assembly, a driving motor and a transmission assembly. The base comprises a face shell and a base, and the face shell is provided with an air inlet. The rear side of the face shell is fixedly connected with the base. The filter screen assembly comprises a top cover detachably mounted on the air inlet, a reel rotatably mounted on the top cover, and a filter screen wound on the reel. The driving motor is mounted on the base and drives the reel to rotate through the transmission assembly. The transmission assembly comprises a first engaging part arranged on the base and a second engaging part arranged on the top cover. The power input end of the first engaging part is connected with the output shaft of the driving motor, the power output end is engagedly connected with the power input end of the second engaging part, and the power output end of the second engaging part is connected with the reel. The indoor unit can integrally dismount the filter screen assembly and is not limited by the transmission assembly, greatly reducing the dismounting difficulty of the reel and the filter screen, and making the reel and the filter screen very convenient and fast to dismount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner indoor unit. BACKGROUND

[0002] In order to reduce the replacement frequency of the filter screen or improve the service life of the filter screen, some air conditioner indoor units are provided with a roll-shaped filter screen, both ends of the filter screen are wound on two spools, and when the unfolded part of the filter screen between the two spools is dirty and blocked, the dirty and blocked part can be wound on one of the spools, and a part of the new filter screen is unfolded to shield the air inlet of the air conditioner indoor unit.

[0003] Although the above-mentioned filter screen setting form greatly reduces the replacement frequency of the filter screen, regular maintenance of the spool and the filter screen is still required. In order to improve the disassembly and assembly efficiency, some air conditioner indoor units set the spool and the filter screen on the top cover so as to be disassembled and assembled as a whole. However, even so, the power components still need to be disconnected or reconnected when the filter screen assembly is disassembled and assembled, which is still relatively cumbersome. SUMMARY

[0004] The present application aims to provide an air conditioner indoor unit to solve the technical problem that the steps of disassembling and assembling the spool and the filter screen are relatively cumbersome in the prior art.

[0005] The air conditioner indoor unit provided by the present application comprises a base, a filter screen assembly, a driving motor and a transmission assembly. The base comprises a face shell and a base, and the face shell is provided with an air inlet. The rear side of the face shell is fixedly connected with the base. The filter screen assembly comprises a top cover which is detachably installed on the air inlet, a spool which is rotatably installed on the top cover, and a filter screen which is wound on the spool. The driving motor is installed on the base and drives the spool to rotate through the transmission assembly. The transmission assembly comprises a first engaging part and a second engaging part. The first engaging part is arranged on the base, and the second engaging part is arranged on the top cover. The power input end of the first engaging part is connected with the output shaft of the driving motor, the power output end is engagedly connected with the power input end of the second engaging part, and the power output end of the second engaging part is connected with the spool.

[0006] The air conditioner indoor unit provided by the present application can produce the following beneficial effects:

[0007] The air conditioner indoor unit provided by the present application is characterized in that the spool and the filter screen are arranged on the top cover, the driving motor and the first engaging part of the transmission assembly are arranged on the base, and the second engaging part of the transmission assembly is arranged on the top cover of the filter screen assembly. During operation, the driving motor drives the first engaging part to rotate, the first engaging part drives the second engaging part to rotate, and the second engaging part drives the spool to rotate, thereby realizing the winding and unwinding of the filter screen.

[0008] If the scroll or the filter screen needs to be overhauled, replaced or cleaned, the top cover is only removed from the face shell, the scroll and the filter screen arranged on the top cover are removed together, at the same time, the second engaging part of the transmission assembly is automatically disengaged from the first engaging part, without the operation of separately dismounting the transmission assembly or cutting off the transmission connection; after the overhauling, replacement or cleaning are completed, the scroll and the filter screen are installed to the top cover, the top cover is installed to the air inlet of the face shell, the filter screen assembly is integrally installed to the face shell, and the second engaging part of the transmission assembly is automatically re-engaged with the first engaging part to re-establish the transmission connection, without other installation or connection operation.

[0009] That is, the indoor unit of the air conditioner provided by the application can integrally dismount and install the filter screen assembly, and is not limited by the transmission assembly, greatly reducing the dismounting and mounting difficulty of the scroll and the filter screen, and being very convenient and fast for dismounting and mounting the scroll and the filter screen.

[0010] Further, the first engaging part comprises a driving gear coaxially and fixedly arranged with the output shaft of the driving motor, the second engaging part comprises a driven gear coaxially and fixedly arranged with the scroll, and the driving gear is in meshing connection with the driven gear.

[0011] Under this technical solution, the transmission assembly only comprises a driving gear and a driven gear, the structure is simple, easy to arrange, and the transmission precision of the gear transmission is relatively high.

[0012] Further, the driving motor and the driving gear are installed on the top of the base.

[0013] Further, an insertion slot is arranged on the end face of the driving gear facing the driving motor, and the output shaft of the driving motor is fixedly inserted into the insertion slot.

[0014] Further, the scroll comprises a driving scroll and a driven scroll, the driving scroll and the driven scroll are arranged at opposite ends of the top cover and parallel to each other, one end of the filter screen is fixedly arranged on the driving scroll, the other end is fixedly arranged on the driven scroll, and the driven gear is coaxially and fixedly arranged on the driving scroll.

[0015] Under this technical solution, when the unfolded part of the filter screen is blocked, the driving motor can be started, the driving motor drives the driving gear to rotate, the driving gear drives the driven gear to rotate, the driven gear drives the driving scroll to rotate, so that the blocked part of the filter screen can be wound on the driving scroll, at the same time, the filter screen drives the driven scroll to rotate, so that the clean part of the filter screen can be unfolded and shielded at the air inlet.

[0016] Further, one end of the driving reel is provided with a limiting socket extending along the axial direction thereof, and the side wall of the limiting socket is provided with a limiting table; one end surface of the driven gear is provided with a limiting buckle, the limiting buckle is inserted into the limiting socket along the axial direction of the driving reel and is connected with the limiting table, and the limiting socket can limit the rotation of the limiting buckle around the axis.

[0017] In this technical solution, the limiting table can block the limiting buckle and thus block the driven gear from separating from the driving reel along the axial direction, and the limiting socket can block the rotation of the limiting buckle along the circumferential direction, so that the driven gear can drive the driving reel to rotate.

[0018] Further, the end surface of the driven gear is further provided with two limiting columns, the two limiting columns are arranged around the axis of the driven gear and are spaced apart from the limiting buckle, the two limiting columns and the limiting buckle are inserted into the limiting socket, and all of them are in contact with the hole wall of the limiting socket.

[0019] In this technical solution, the elasticity of the limiting buckle is relatively large, and when the limiting buckle is inserted into the limiting socket and has not been connected to the limiting table, the limiting buckle can be deformed towards the axis of the driven gear, so that the driven gear can be more easily and quickly installed on the driving reel.

[0020] Further, the base is provided with a first accommodating space, and the driving motor is fixedly installed in the first accommodating space.

[0021] In this technical solution, the first accommodating space of the base serves to accommodate and limit the driving motor.

[0022] Further, the shell of the driving motor is provided with an ear plate, the ear plate is provided with a mounting hole, and a fastener passes through the mounting hole and fixes the driving motor to the base.

[0023] Further, the base is provided with at least one limiting strip, the limiting strip is located between the driving motor and the driving gear, is located on the side of the output shaft of the driving motor and is in contact with the shell of the driving motor.

[0024] In this technical solution, the limiting strip serves to block and limit the shell of the driving motor and the driving gear, which is beneficial to stably output power and transmit power.

[0025] Further, the number of limiting strips is two, and the two limiting strips are located on the two sides of the output shaft of the driving motor.

[0026] In this technical solution, the blocking effect of the two limiting strips on the driving motor is more balanced.

[0027] Further, the base is further provided with an electric control box, and the driving motor is connected with a circuit board in the electric control box.

[0028] In the technical scheme, the driving motor and the electric control box are arranged on the base, so that when the filter screen assembly is disassembled, the connection line between the driving motor and the circuit board does not need to be cut off, and when the filter screen assembly is installed, the connection line between the driving motor and the circuit board does not need to be reconnected, thereby ensuring the convenience of disassembling and assembling the filter screen assembly.

[0029] Further, the base is provided with a wire clamping piece, and the wire clamping piece clamps the connection wire between the driving motor and the circuit board to the base.

[0030] In the technical scheme, the wire clamping piece binds and fixes the connection wire between the driving motor and the circuit board, so that the connection wire can be effectively prevented from being interfered by other components, thereby facilitating the connection reliability between the driving motor and the circuit board. Of course, the connection wire can also be effectively prevented from interfering other components.

[0031] Optionally, the first engaging part comprises a plurality of driving gears which are engaged and transmitted in sequence, the second engaging part comprises a plurality of driven gears which are engaged and transmitted in sequence, and along the transmission direction, a first driving gear of the first engaging part is coaxially and fixedly arranged on the output shaft of the driving motor, a last driving gear of the first engaging part is engaged and connected with a first driven gear of the second engaging part, and a last driven gear of the second engaging part is coaxially and fixedly arranged on the reel.

[0032] In the technical scheme, when the filter screen assembly is disassembled, the connection between the second engaging part and the first engaging part can also be automatically cut off, and when the filter screen assembly is installed, the second engaging part can also automatically establish the connection with the first engaging part.

[0033] Optionally, the first engaging part comprises a worm, and the second engaging part comprises a worm wheel, and the worm is engaged and connected with the worm wheel.

[0034] In the technical scheme, when the filter screen assembly is disassembled, the worm wheel can automatically cut off the connection with the worm, and when the filter screen assembly is installed, the worm wheel can also automatically re-engage and connect with the worm. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0036] Figure 1A partial assembly structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0037] Figure 2 A partial exploded structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0038] Figure 3 A partial assembly structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application; Figure 2 An enlarged schematic view of A in the middle;

[0039] Figure 4 A partial assembly structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0040] Figure 5 A partial assembly structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application; Figure 4 An enlarged schematic view of B in the middle;

[0041] Figure 6 A partial exploded structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0042] Figure 7 A partial exploded structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application; Figure 6 An enlarged schematic view of C in the middle;

[0043] Figure 8 A structure schematic view of a driving gear of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0044] Figure 9 A partial exploded structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0045] Figure 10 A cross-sectional schematic view of a driven gear and a driving reel of an indoor unit of an air conditioner provided by an embodiment of the present application in an assembled state perpendicular to an axis;

[0046] Figure 11 A partial structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0047] Figure 12 A partial structure schematic view of an indoor unit of an air conditioner provided by an embodiment of the present application;

[0048] Figure 13 A structure schematic view of a face shell of an indoor unit of an air conditioner provided by an embodiment of the present application.

[0049] Explanation of reference signs:

[0050] 100-face shell; 110-air inlet; 120-clamping hole; 130-limiting slot;

[0051] 200 - filter screen assembly; 210 - top cover; 211 - buckle; 212 - limiting tab; 221 - driving reel; 222 - driven reel; 223 - limiting hole; 224 - limiting platform; 230 - filter screen;

[0052] 300 - driving motor; 310 - output shaft; 320 - ear plate; 321 - mounting hole;

[0053] 410 - driving gear; 411 - slot; 420 - driven gear; 421 - limiting buckle; 422 - limiting column; 500 - base; 510 - first accommodating space; 520 - limiting strip; 530 - shroud; 540 - wire clamping. DETAILED DESCRIPTION

[0054] To make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0055] The embodiment provides an air conditioner indoor unit, as shown in Figure 1 、 Figure 2 、 Figure 4 and Figure 6 , the air conditioner indoor unit comprises a base, a filter screen assembly 200, a driving motor 300 and a transmission assembly; the base comprises a face shell 100 and a base 500, the face shell 100 is provided with an air inlet 110; the rear side of the face shell 100 is fixedly connected with the base 500; the filter screen assembly 200 comprises a top cover 210 detachably mounted at the air inlet 110, a reel rotatably mounted at the top cover 210, and a filter screen 230 wound on the reel; the driving motor 300 is mounted on the base 500 and drives the reel to rotate through the transmission assembly; the transmission assembly comprises a first engaging part and a second engaging part, the first engaging part is arranged on the base 500, the second engaging part is arranged on the top cover 210, the power input end of the first engaging part is connected with the output shaft 310 of the driving motor 300, the power output end is engaged with the power input end of the second engaging part, and the power output end of the second engaging part is connected with the reel.

[0056] The air conditioner indoor unit provided by the embodiment, the reel and the filter screen 230 are arranged on the top cover 210; the driving motor 300 and the first engaging part of the transmission assembly are arranged on the base 500, and the second engaging part of the transmission assembly is arranged on the top cover 210 of the filter screen assembly 200. In work, the driving motor 300 drives the first engaging part to rotate, the first engaging part drives the second engaging part to rotate, and the second engaging part drives the reel to rotate, so as to realize the winding and unwinding of the filter screen 230.

[0057] If the reel or filter screen 230 needs to be overhauled, replaced or cleaned, the top cover 210 is only needed to be detached from the face shell 100, and the reel and filter screen 230 arranged on the top cover 210 are also detached, at the same time, the second engaging part of the transmission assembly is automatically disengaged from the first engaging part, without the need of separately detaching the transmission assembly or cutting off the transmission connection; after the overhaul, replacement or cleaning are completed, the reel and filter screen 230 are installed to the top cover 210, and then the top cover 210 is installed to the air inlet 110 of the face shell 100, so that the filter screen assembly 200 is integrally installed to the face shell 100, and the second engaging part of the transmission assembly is automatically re-engaged with the first engaging part to re-establish the transmission connection, without the need of other installation or connection operations.

[0058] That is, the indoor unit of the air conditioner provided in the embodiment can integrally detach and install the filter screen assembly 200, and is not limited by the transmission assembly, greatly reducing the difficulty of detaching and installing the reel and filter screen 230, and being very convenient and fast for detaching or installing the reel and filter screen 230.

[0059] Specifically, in the embodiment, as shown in Figure 3 , Figure 5 and Figure 12 , the first engaging part includes a driving gear 410 coaxially and fixedly arranged with the output shaft 310 of the driving motor 300, the second engaging part includes a driven gear 420 coaxially and fixedly arranged with the reel, and the driving gear 410 is in meshing connection with the driven gear 420. In this arrangement form, the transmission assembly only includes the driving gear 410 and the driven gear 420, which is simple in structure form, convenient to arrange, and has relatively high transmission precision of the gear transmission.

[0060] It should be noted here that in other embodiments of the present application, the form of the transmission assembly is not limited to the form of the meshing of the one driving gear 410 and the one driven gear 420, but can also adopt other forms, for example: the first engaging part can also include a plurality of driving gears 410 in turn meshing transmission, the second engaging part can also include a plurality of driven gears 420 in turn meshing transmission, along the transmission direction, the first driving gear of the first engaging part is coaxially and fixedly arranged with the output shaft 310 of the driving motor 300, the last driving gear of the first engaging part is in meshing connection with the first driven gear of the second engaging part, and the last driven gear of the second engaging part is coaxially and fixedly arranged with the reel. In this way, when the filter screen assembly 200 is detached, the connection between the second engaging part and the first engaging part can also be automatically cut off; when the filter screen assembly 200 is installed, the second engaging part can also automatically establish connection with the first engaging part.

[0061] It should be noted that, in addition to the form of gear transmission, the transmission assembly can also adopt the form of worm gear transmission, for example: the first meshing part includes a worm, the second meshing part includes a worm gear, and the worm is meshingly connected with the worm gear. In this way, when the filter screen assembly 200 is disassembled, the worm gear can automatically cut off the connection between the worm, and when the filter screen assembly 200 is installed, the worm gear can automatically re-mesh with the worm.

[0062] Specifically, as shown in Figures 2 to 7 , the driving motor 300 and the driving gear 410 are installed on the top of the base 500.

[0063] Specifically, as shown in Figure 7 and Figure 8 , the driving gear 410 is provided with a slot 411 on the end face facing the driving motor 300, and the output shaft 310 of the driving motor 300 is fixedly inserted into the slot 411.

[0064] Specifically, as shown in Figure 12 , the reel includes a driving reel 221 and a driven reel 222, which are arranged at opposite ends of the top cover 210 and parallel to each other; one end of the filter screen 230 is fixedly arranged on the driving reel 221, and the other end is fixedly arranged on the driven reel 222; and the driven gear 420 is coaxially fixedly arranged on the driving reel 221. In this arrangement, when the dirty part of the filter screen 230 is blocked, the driving motor 300 can be started to drive the driving gear 410 to rotate, the driving gear 410 drives the driven gear 420 to rotate, and the driven gear 420 drives the driving reel 221 to rotate, so that the dirty part of the filter screen 230 can be wound on the driving reel 221, and at the same time, the filter screen 230 drives the driven reel 222 to rotate, so that the clean part of the filter screen 230 can be unfolded and shielded at the air inlet 110.

[0065] Specifically, as shown in Figure 9 and Figure 10 , one end of the driving reel 221 is provided with a limiting insertion hole 223 extending along the axial direction thereof, and the side wall of the limiting insertion hole 223 is provided with a limiting table 224; one end face of the driven gear 420 is provided with a limiting buckle 421, which is inserted into the limiting insertion hole 223 along the axial direction of the driving reel 221 and is clamped with the limiting table 224, and the limiting insertion hole 223 can limit the rotation of the limiting buckle 421 around the axis. In this arrangement, the limiting table 224 can block the limiting buckle 421 to prevent the driven gear 420 from separating from the driving reel 221 along the axial direction, and the limiting insertion hole 223 can block the limiting buckle 421 from rotating in the circumferential direction, so that the driven gear 420 can drive the driving reel 221 to rotate.

[0066] Specifically, as shown in Figure 9 and Figure 10 The end surface of the driven gear 420 is also provided with two limiting columns 422, which are spaced around the axis of the driven gear 420 and are inserted into the limiting insertion hole 223 and in contact with the hole wall of the limiting insertion hole 223. In this way, the elasticity of the limiting buckle 421 is relatively large, and when the limiting buckle 421 is inserted into the limiting insertion hole 223 and has not yet been clamped into the limiting platform 224, the limiting buckle 421 can be deformed in the direction of the axis of the driven gear 420, so that the driven gear 420 can be more easily and quickly installed to the driving reel 221.

[0067] Specifically, in this embodiment, the base 500 is provided with a first accommodating space 510, and the driving motor 300 is fixedly installed in the first accommodating space 510. In this arrangement, the first accommodating space 510 of the base 500 plays a role of accommodating and limiting the driving motor 300.

[0068] Specifically, in this embodiment, as shown in Figure 7 The housing of the driving motor 300 is provided with an ear plate 320, which is provided with a mounting hole 321, and the fastener passes through the mounting hole 321 and fixes the driving motor 300 to the base 500. More specifically, in this embodiment, the number of ear plates 320 is two, and the two ear plates 320 are respectively arranged on opposite sides of the housing of the driving motor 300, and the two fasteners pass through the two mounting holes 321 on the two ear plates 320 and are fixed to the base 500. In this way, the fastener is more firmly fixed to the driving motor 300. More specifically, in this embodiment, the fixing member is a screw.

[0069] Specifically, in this embodiment, as shown in Figure 7 The base 500 is provided with two limiting strips 520, which are respectively located on both sides of the output shaft 310 of the driving motor 300, are located between the driving motor 300 and the driving gear 410, and are in contact with the housing of the driving motor 300. In this arrangement, the limiting strip 520 plays a role of blocking and limiting the housing of the driving motor 300 and the driving gear 410, which is beneficial to stably output power and transmit power.

[0070] It should be noted that although the arrangement of the two limiting strips 520 in this embodiment is more balanced in blocking the driving motor 300, in other embodiments of the present application, the number of limiting strips 520 is not limited to two, for example: the number of limiting strips 520 can also be one, which is located between the driving motor 300 and the driving gear 410, on one side of the output shaft 310 of the driving motor 300 and in contact with the housing of the driving motor 300.

[0071] Specifically, in the embodiment, the base 500 is further provided with an electric control box, and the driving motor 300 is connected with a circuit board in the electric control box. In this arrangement, the driving motor 300 and the electric control box are both arranged on the base 500, so that when the filter screen assembly 200 is disassembled, the connection line between the driving motor 300 and the circuit board does not need to be disconnected, and when the filter screen assembly 200 is assembled, the connection line between the driving motor 300 and the circuit board does not need to be reconnected, thereby ensuring the convenience of disassembling and assembling the filter screen assembly 200.

[0072] Specifically, in the embodiment, as shown in Figure 5 , the base 500 is provided with a wire clamping piece 540, and the wire clamping piece 540 clamps the connection line between the driving motor 300 and the circuit board on the base 500. In this arrangement, the wire clamping piece 540 binds and fixes the connection wire between the driving motor 300 and the circuit board, which can effectively avoid interference from other components, thereby facilitating the connection between the driving motor 300 and the circuit board. Of course, it can also effectively avoid interference from other components.

[0073] Specifically, in the embodiment, as shown in Figure 5 , the base 500 is further provided with a protective cover 530, and the protective cover 530 is arranged on the side of the driving gear 410 away from the driving motor 300, for blocking the driving gear 410 from moving away from the driving motor 300 in the axial direction, thereby axially limiting the driving gear 410 and ensuring the stable meshing transmission between the driving gear 410 and the driven gear 420.

[0074] Specifically, in the embodiment, as shown in Figure 2 , Figure 12 and Figure 13 , the top cover 210 is provided with a buckle 211, and the face shell 100 is provided with a clamping hole 120, and the buckle 211 is clamped in the corresponding clamping hole 120. In this arrangement, the top cover 210 and the face shell 100 are clamped, which is simple and fast in assembly and can ensure firm connection between the two. Of course, it should be noted that in other embodiments of the application, the buckle 211 can also be arranged on the face shell 100, and correspondingly, the clamping hole 120 is arranged on the top cover 210, that is, as long as the buckle 211 and the clamping hole 120 can be clamped to fix and connect the top cover 210 and the face shell 100, the specific arrangement position of the buckle 211 and the clamping hole 120 is not limited in the application.

[0075] Specifically, in the embodiment, as shown in Figures 11 to 13As shown, the top cover 210 is provided with a limiting tab 212 located at the rear side of the top cover 210; the face cover 100 is provided with a limiting slot 130, the limiting tab 212 is inserted into the corresponding limiting slot 130, and the limiting slot 130 can block the corresponding limiting tab 212 from moving upward. In this arrangement, when the filter assembly 200 is assembled to the face cover 100, the limiting tab 212 can be inserted into the corresponding limiting slot 130 to preliminarily position the top cover 210, and then the buckle 211 is buckled into the corresponding clamping hole 120 to complete the installation of the top cover 210 and the filter assembly 200. In addition, the rear side is connected by insertion, which can further improve the disassembly efficiency.

[0076] Specifically, in the embodiment, as shown in Figure 2 and Figures 11 to 13 shown, the buckle 211 is arranged at the front side and the front end of the two sides of the top cover 210, and the limiting tab 212 is arranged at the rear side of the top cover 210; the clamping hole 120 is arranged at the front side and the front end of the two sides of the face cover 100 and is arranged correspondingly with the buckle 211; and the limiting slot 130 is arranged at the rear side of the face cover 100 and is arranged correspondingly with the limiting tab 212. In this arrangement, when the assembly operation is performed, the operator can be conveniently located in front of the face cover 100 to operate.

[0077] Finally, it should be noted that in this document, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0078] The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The base includes a face shell (100) and a base (500), wherein the face shell (100) has an air inlet (110); the rear side of the face shell (100) is fixedly connected to the base (500); The filter assembly (200) includes a top cover (210) detachably mounted to the air inlet (110), a spool rotatably mounted to the top cover (210), and a filter (230) wound on the spool. A drive motor (300) and a transmission assembly are provided. The drive motor (300) is mounted on the base (500) and drives the spool to rotate through the transmission assembly. The transmission assembly includes a first engagement part and a second engagement part. The first engagement part is disposed on the base (500), and the second engagement part is disposed on the top cover (210). The power input end of the first engagement part is connected to the output shaft (310) of the drive motor (300), and the power output end is engaged with the power input end of the second engagement part. The power output end of the second engagement part is connected to the spool. The second meshing part includes a driven gear (420), and the reel includes a driving reel (221). One end of the drive shaft (221) is provided with a limiting insertion hole (223) extending along its axial direction, and the side wall of the limiting insertion hole (223) is provided with a limiting platform (224); one end face of the driven gear (420) is provided with a limiting buckle (421), the limiting buckle (421) is inserted into the limiting insertion hole (223) along the axial direction of the drive shaft (221) and is engaged with the limiting platform (224), and the limiting insertion hole (223) can restrict the limiting buckle (421) from rotating around the axis.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first meshing part includes a driving gear (410), which is coaxially fixed with the output shaft (310) of the drive motor (300); the second meshing part includes a driven gear (420), which is coaxially fixed with the reel; the driving gear (410) and the driven gear (420) are meshed together.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The drive gear (410) has a slot (411) on its end face facing the drive motor (300), and the output shaft (310) of the drive motor (300) is fixedly inserted into the slot (411).

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The scroll also includes a driven scroll (222), the driving scroll (221) and the driven scroll (222) are respectively disposed at opposite ends of the top cover (210) and are parallel to each other; one end of the filter screen (230) is fixedly disposed on the driving scroll (221) and the other end is fixedly disposed on the driven scroll (222); the driven gear (420) is coaxially fixedly disposed on the driving scroll (221).

5. The indoor unit of the air conditioner according to claim 2, characterized in that, The base (500) is provided with a first receiving space (510), and the drive motor (300) is fixedly installed in the first receiving space (510).

6. The indoor unit of the air conditioner according to claim 2, characterized in that, The base (500) is provided with at least one limiting strip (520), which is located between the drive motor (300) and the drive gear (410), on the side of the output shaft (310) of the drive motor (300) and in contact with the housing of the drive motor (300).

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The base (500) is also provided with an electrical control box, and the drive motor (300) is connected to the circuit board inside the electrical control box.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, The first meshing part includes a plurality of sequentially meshing drive gears (410), and the second meshing part includes a plurality of sequentially meshing driven gears (420). Along the transmission direction, the first drive gear of the first meshing part is coaxially fixedly disposed with the output shaft (310) of the drive motor (300), the last drive gear of the first meshing part is meshed with the first driven gear of the second meshing part, and the last driven gear of the second meshing part is coaxially fixedly disposed with the reel.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The first meshing part includes a worm, and the second meshing part includes a worm wheel, wherein the worm and the worm wheel are meshed together.

Images