Air conditioner indoor unit

Abstract

The invention provides an air conditioner indoor unit, 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 an air inlet is formed in the face shell. The rear side of the face shell is fixedly connected with the base. The filter screen assembly comprises a top cover detachably mounted at the air inlet, a reel rotatably mounted on the top cover, and a filter screen wound on the reel; the driving motor is installed on the base and drives the reel to rotate through the transmission assembly. The transmission assembly comprises a first meshing part arranged on the base and a second meshing part arranged on the top cover, the power input end of the first meshing part is connected with an output shaft of the driving motor, the power output end of the first meshing part is in meshing connection with the power input end of the second meshing part, and the power output end of the second meshing part is connected with the reel. According to the indoor unit, the filter screen assembly can be integrally disassembled and assembled and is not limited by the transmission assembly, the disassembly and assembly difficulty of the reel and the filter screen is greatly reduced, and the reel and the filter screen are very convenient and rapid to disassemble and assemble.

Description

Technical Field

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

[0002] In order to reduce the number of times the filter needs to be replaced or increase the service life of the filter, some air conditioners are equipped with a rolled filter inside the indoor unit. The two ends of the filter are respectively rolled up on two reels. When the unfolded part of the filter located between the two reels is dirty and clogged, the dirty and clogged part can be rolled up on one of the reels, and at the same time, a part of the new filter is unfolded to cover the air inlet of the indoor unit of the air conditioner.

[0003] Although the above filter arrangement greatly reduces the number of times the filter needs to be replaced, the reel and filter still need to be regularly inspected and maintained. In order to improve the efficiency of disassembly and assembly, some air conditioner indoor units have the reel and filter set on the top cover for overall disassembly and assembly. However, even so, when disassembling and assembling the filter assembly, it is still cumbersome to cut off or reconnect the power components. Summary of the invention

[0004] The object of the present invention is to provide an indoor unit of an air conditioner to solve the technical problem in the prior art that the steps for disassembling and assembling a reel and a filter are complicated.

[0005] The indoor unit of an air conditioner provided by the present invention comprises a base, a filter assembly, a driving motor and a transmission assembly; the base comprises a face shell and a base, the face shell is provided with an air inlet; the rear side of the face shell is fixedly connected to the base; the filter assembly comprises a top cover detachably mounted on the air inlet, a reel rotatably mounted on the top cover, and a filter wound on the reel; the driving motor is mounted on the base, and the reel is driven to rotate through the transmission assembly; the transmission assembly comprises a first meshing portion and a second meshing portion, the first meshing portion is arranged on the base, the second meshing portion is arranged on the top cover, the power input end of the first meshing portion is connected to the output shaft of the driving motor, the power output end is meshedly connected to the power input end of the second meshing portion, and the power output end of the second meshing portion is connected to the reel.

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

[0007] In the indoor unit of the air conditioner provided by the present invention, the reel and the filter are arranged on the top cover; the driving motor and the first meshing part of the transmission assembly are arranged on the base, and the second meshing part of the transmission assembly is arranged on the top cover of the filter assembly. During operation, the driving motor drives the first meshing part to rotate, the first meshing part drives the second meshing part to rotate, and the second meshing part drives the reel to rotate, thereby realizing the winding and unwinding of the filter.

[0008] If you need to inspect, replace or clean the reel or filter, you only need to remove the top cover from the face shell, and then you can remove the reel and filter set on the top cover. At the same time, the second engaging portion of the transmission assembly will automatically disengage from the first engaging portion, and there is no need to disassemble the transmission assembly separately or cut off the transmission connection. After the inspection, replacement or cleaning is completed, install the reel and filter to the top cover, and then install the top cover to the air inlet of the face shell, and then install the filter assembly as a whole to the face shell, and the second engaging portion of the transmission assembly will automatically re-engage with the first engaging portion to re-establish the transmission connection, and no other installation or connection operations are required.

[0009] That is, the indoor unit of the air conditioner provided by the present invention can disassemble and install the filter assembly as a whole, and is not restricted by the transmission assembly, which greatly reduces the difficulty of disassembling and assembling the reel and the filter. Both disassembling and installing the reel and the filter are very convenient and quick.

[0010] Furthermore, the first meshing portion includes a driving gear, which is coaxially fixed with the output shaft of the driving motor; the second meshing portion includes a driven gear, which is coaxially fixed with the reel; the driving gear is meshingly connected with the driven gear.

[0011] Under this technical solution, the transmission assembly only includes a driving gear and a driven gear, the structure is simple, the setting is convenient, and the transmission accuracy of the gear transmission is relatively high.

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

[0013] Furthermore, a slot is provided on the end surface of the driving gear facing the driving motor, and the output shaft of the driving motor is fixedly inserted in the slot.

[0014] Furthermore, the reel includes a driving reel and a driven reel, and the driving reel and the driven reel are respectively arranged at opposite ends of the top cover and are parallel to each other; one end of the filter is fixedly arranged on the driving reel, and the other end is fixedly arranged on the driven reel; the driven gear is coaxially fixedly arranged on the driving reel.

[0015] Under this technical solution, when the unfolded part of the filter becomes dirty and clogged, the drive motor can be started to drive the driving gear to rotate, the driving gear drives the driven gear to rotate, and the driven gear drives the active reel to rotate, so that the dirty and clogged part of the filter can be rolled up on the active reel. At the same time, the filter drives the driven reel to rotate, so that the clean part of the filter can be unfolded and blocked at the air inlet.

[0016] Furthermore, a limit socket extending along its axial direction is opened at one end of the active reel, and a limit platform is arranged on the side wall of the limit socket; a limit buckle is arranged on one end face of the driven gear, the limit buckle is inserted into the limit socket along the axial direction of the active reel and is clamped with the limit platform, and the limit socket can limit the rotation of the limit buckle around the axis.

[0017] Under this technical solution, the limit platform can prevent the driven gear from axially disengaging from the active reel by blocking the limit buckle, while the limit socket can prevent the limit buckle from rotating in the circumferential direction, so that the driven gear can drive the active reel to rotate.

[0018] Furthermore, two limit columns are provided on the end face of the driven gear, and the two limit columns and the limit buckles are spaced apart around the axis of the driven gear. The two limit columns and the limit buckles are both inserted into the limit socket, and all three are in contact with the hole wall of the limit socket.

[0019] Under this technical solution, the limit buckle has relatively large elasticity. When the limit buckle is inserted into the limit socket and has not yet been stuck in the limit platform, the limit buckle can be deformed toward the axial direction of the driven gear, so that the driven gear can be installed on the active reel more easily and quickly.

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

[0021] Under this technical solution, the first accommodation space of the base plays a role in accommodating and limiting the driving motor.

[0022] Furthermore, the housing 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] Furthermore, the base is provided with at least one limiting bar, and the limiting bar is located between the driving motor and the driving gear, on the side of the output shaft of the driving motor and in contact with the housing of the driving motor.

[0024] Under this technical solution, the limit bar simultaneously plays a blocking and limiting role on the housing of the drive motor and the active gear, which is conducive to stable power output and transmission.

[0025] Furthermore, there are two limit bars, which are respectively located on both sides of the output shaft of the drive motor.

[0026] Under this technical solution, the blocking effect of the two limit strips on the drive motor is more balanced.

[0027] Furthermore, the base is also provided with an electric control box, and the drive motor is connected to a circuit board in the electric control box.

[0028] Under this technical solution, the drive motor and the electronic control box are both arranged on the base. Therefore, when removing the filter assembly, there is no need to cut off the connection between the drive motor and the circuit board; when installing the filter assembly, there is no need to reconnect the connection between the drive motor and the circuit board, thereby ensuring the convenience of disassembling and assembling the filter assembly.

[0029] Furthermore, the base is provided with a wire passing clamp, and the wire passing clamp fixes the connecting wire between the driving motor and the circuit board to the base.

[0030] Under this technical solution, the wire pass card can restrain and fix the connecting wires between the drive motor and the circuit board, which can effectively prevent other components from interfering with it, thereby ensuring a reliable connection between the drive motor and the circuit board. Of course, it can also effectively prevent the connecting wires from interfering with other components.

[0031] Optionally, the first meshing portion includes a plurality of driving gears meshing in sequence for transmission, and the second meshing portion includes a plurality of driven gears meshing in sequence for transmission, and along the transmission direction, the first driving gear of the first meshing portion is coaxially fixed with the output shaft of the drive motor, the last driving gear of the first meshing portion is meshingly connected with the first driven gear of the second meshing portion, and the last driven gear of the second meshing portion is coaxially fixed with the reel.

[0032] Under this technical solution, when the filter assembly is disassembled, the connection between the second meshing portion and the first meshing portion can also be automatically cut off; when the filter assembly is installed, the second meshing portion can also automatically establish a connection with the first meshing portion.

[0033] Optionally, the first meshing portion includes a worm, and the second meshing portion includes a worm wheel, and the worm is meshingly connected to the worm wheel.

[0034] Under this technical solution, the worm wheel can automatically cut off the connection with the worm when the filter assembly is disassembled, and the worm wheel can also automatically re-engage with the worm when the filter assembly is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0036] Figure 1One of the schematic diagrams of the partial assembly structure of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0037] Figure 2 One of the partial exploded structural diagrams of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0038] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0039] Figure 4 The second schematic diagram of the partial assembly structure of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0040] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0041] Figure 6 A second schematic diagram of a partial exploded structure of an indoor unit of an air conditioner provided by an embodiment of the present invention;

[0042] Figure 7 for Figure 6 The enlarged schematic diagram of the center C;

[0043] Figure 8 A schematic structural diagram of a driving gear of an indoor unit of an air conditioner provided by an embodiment of the present invention;

[0044] Fig. 9 A third schematic diagram of a partial exploded structure of an indoor unit of an air conditioner provided by an embodiment of the present invention;

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

[0046] Fig.11 One of the partial structural schematic diagrams of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0047] Fig.12 The second schematic diagram of the partial structure of the indoor unit of the air conditioner provided by the embodiment of the present invention;

[0048] Fig.13 A schematic structural diagram of a front shell of an indoor unit of an air conditioner provided in an embodiment of the present invention.

[0049] Description of reference numerals:

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

[0051] 200-filter assembly; 210-top cover; 211-buckle; 212-limiting insert; 221-active reel; 222-driven reel; 223-limiting jack; 224-limiting platform; 230-filter;

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

[0053] 410 - driving gear; 411 - slot; 420 - driven gear; 421 - limit buckle; 422 - limit column; 500 - base; 510 - first accommodating space; 520 - limit bar; 530 - shield; 540 - wire pass card. DETAILED DESCRIPTION

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] This embodiment provides an indoor unit of an air conditioner, such as Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the indoor unit of the air conditioner includes a base, a filter assembly 200, a driving motor 300 and a transmission assembly; the base includes 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 to the base 500; the filter assembly 200 includes a top cover 210 detachably mounted on the air inlet 110, a reel rotatably mounted on the top cover 210, and a filter 230 rolled up on the reel; the driving motor 300 is mounted on the base 500, and the reel is driven to rotate through the transmission assembly; the transmission assembly includes a first meshing portion and a second meshing portion, the first meshing portion is arranged on the base 500, and the second meshing portion is arranged on the top cover 210, the power input end of the first meshing portion is connected to the output shaft 310 of the driving motor 300, the power output end is meshedly connected to the power input end of the second meshing portion, and the power output end of the second meshing portion is connected to the reel.

[0056] In the indoor unit of the air conditioner provided in this embodiment, the reel and the filter 230 are arranged on the top cover 210; the driving motor 300 and the first meshing part of the transmission assembly are arranged on the base 500, and the second meshing part of the transmission assembly is arranged on the top cover 210 of the filter assembly 200. During operation, the driving motor 300 drives the first meshing part to rotate, the first meshing part drives the second meshing part to rotate, and the second meshing part drives the reel to rotate, thereby realizing the winding and unwinding of the filter 230.

[0057] If the reel or filter 230 needs to be inspected, replaced or cleaned, it is only necessary to remove the top cover 210 from the face shell 100, and the reel and filter 230 arranged on the top cover 210 can be removed together. At the same time, the second engaging portion of the transmission assembly will automatically disengage from the first engaging portion, and there is no need to separately disassemble the transmission assembly or cut off the transmission connection. After the inspection, replacement or cleaning is completed, the reel and filter 230 are installed on the top cover 210, and then the top cover 210 is installed on the air inlet 110 of the face shell 100, and the filter assembly 200 can be installed as a whole on the face shell 100, and the second engaging portion of the transmission assembly will automatically re-engage with the first engaging portion to re-establish the transmission connection, and no other installation or connection operations are required.

[0058] That is, the indoor unit of the air conditioner provided in this embodiment can disassemble and install the filter assembly 200 as a whole, and is not restricted by the transmission assembly, which greatly reduces the difficulty of disassembling and assembling the reel and the filter 230. Both disassembling and installing the reel and the filter 230 are very convenient and quick.

[0059] Specifically, in this embodiment, Figure 3 , Figure 5 and Fig.12 As shown, the first meshing part includes a driving gear 410, which is coaxially fixed with the output shaft 310 of the driving motor 300; the second meshing part includes a driven gear 420, which is coaxially fixed with the reel; the driving gear 410 is meshed and connected with the driven gear 420. In this arrangement, the transmission assembly only includes a driving gear 410 and a driven gear 420, the structure is simple, easy to set up, and the transmission accuracy of the gear transmission is relatively high.

[0060] It should be noted that in other embodiments of the present application, the form of the transmission assembly is not limited to the above-mentioned form of a driving gear 410 and a driven gear 420 meshing, but other forms can also be adopted, for example: the first meshing portion can also include a plurality of driving gears 410 meshing and transmitting in sequence, and the second meshing portion can also include a plurality of driven gears 420 meshing and transmitting in sequence, along the transmission direction, the first driving gear of the first meshing portion is coaxially fixedly arranged with the output shaft 310 of the driving motor 300, the last driving gear of the first meshing portion is meshingly connected with the first driven gear of the second meshing portion, and the last driven gear of the second meshing portion is coaxially fixedly arranged with the reel. With such a configuration, when the filter assembly 200 is disassembled, the connection between the second meshing portion and the first meshing portion can also be automatically cut off; when the filter assembly 200 is installed, the second meshing portion can also automatically establish a connection with the first meshing portion.

[0061] It should also be noted that, in addition to the gear transmission, the transmission assembly can also adopt the form of worm gear transmission, for example: the first meshing portion includes a worm, the second meshing portion includes a worm wheel, and the worm is meshed with the worm wheel. In this way, when the filter assembly 200 is disassembled, the worm wheel automatically cuts off the connection with the worm, and when the filter assembly 200 is installed, the worm wheel automatically re-meshes with the worm.

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

[0063] Specifically, in this embodiment, Figure 7 and Figure 8 As shown, a slot 411 is formed on the end surface of the driving gear 410 facing the driving motor 300 , and the output shaft 310 of the driving motor 300 is fixedly inserted in the slot 411 .

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

[0065] Specifically, in this embodiment, Fig. 9 and Fig.10 As shown, a limiting socket 223 extending along the axial direction of the active reel 221 is provided at one end thereof, and a limiting platform 224 is provided on the side wall of the limiting socket 223; a limiting buckle 421 is provided on one end face of the driven gear 420, and the limiting buckle 421 is inserted into the limiting socket 223 along the axial direction of the active reel 221 and is engaged with the limiting platform 224, and the limiting socket 223 can limit the limiting buckle 421 from rotating around the axis. In this arrangement, the limiting platform 224 can block the limiting buckle 421 to prevent the driven gear 420 from axially disengaging from the active reel 221, while the limiting socket 223 can prevent the limiting buckle 421 from rotating in the circumferential direction, so that the driven gear 420 can drive the active reel 221 to rotate.

[0066] Specifically, in this embodiment, continue as Fig. 9 and Fig.10 As shown, two limiting posts 422 are further provided on the end surface of the driven gear 420, and the two limiting posts 422 and the limiting buckle 421 are arranged at intervals around the axis of the driven gear 420, and the two limiting posts 422 and the limiting buckle 421 are all inserted into the limiting insertion hole 223, and all three are in contact with the hole wall of the limiting insertion hole 223. In this way, the limiting buckle 421 has a relatively large elasticity, and when the limiting buckle 421 is inserted into the limiting insertion hole 223 and has not yet been clamped in the limiting platform 224, the limiting buckle 421 can be deformed in the axial direction of the driven gear 420, so that the driven gear 420 can be installed on the active reel 221 more easily and quickly.

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

[0068] Specifically, in this embodiment, Figure 7 As shown, the housing of the driving motor 300 is provided with an ear plate 320, and the ear plate 320 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 the ear plates 320 is two, and the two ear plates 320 are respectively provided on opposite sides of the housing of the driving motor 300, and the two fasteners respectively 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 fixes the driving motor 300 more firmly. More specifically, in this embodiment, the fixing member is a screw.

[0069] Specifically, in this embodiment, continue as Figure 7 As shown, the base 500 is provided with two limit bars 520, which are respectively located on both sides of the output shaft 310 of the driving motor 300, and are both located between the driving motor 300 and the driving gear 410, and are both in contact with the housing of the driving motor 300. In this arrangement, the limit bars 520 simultaneously play a blocking and limiting role on the housing of the driving motor 300 and the driving gear 410, which is conducive to stable power output and transmission.

[0070] It should be noted here that, although the provision of two limit strips 520 in this embodiment provides a more balanced blocking effect on the drive motor 300, in other embodiments of the present application, the number of limit strips 520 is not limited to two. For example, the number of limit strips 520 may also be one, which is located between the drive motor 300 and the driving gear 410, on one side of the output shaft 310 of the drive motor 300 and in contact with the housing of the drive motor 300.

[0071] Specifically, in this embodiment, the base 500 is also provided with an electric control box, and the drive motor 300 is connected to the circuit board in the electric control box. In this arrangement, the drive motor 300 and the electric control box are both arranged on the base 500, so when the filter assembly 200 is disassembled, there is no need to cut off the connection between the drive motor 300 and the circuit board; when the filter assembly 200 is installed, there is no need to reconnect the connection between the drive motor 300 and the circuit board, thereby ensuring the convenience of disassembling and assembling the filter assembly 200.

[0072] Specifically, in this embodiment, Figure 5 As shown, the base 500 is provided with a wire pass card 540, and the wire pass card 540 fixes the connection between the drive motor 300 and the circuit board to the base 500. In this configuration, the wire pass card 540 binds and fixes the connection wires between the drive motor 300 and the circuit board, which can effectively prevent other components from interfering with it, thereby ensuring a reliable connection between the drive motor 300 and the circuit board. Of course, it can also effectively prevent the connection wires from interfering with other components.

[0073] Specifically, in this embodiment, continue as Figure 5 As shown, a shield 530 is also fixedly mounted on the base 500. The shield 530 is arranged on the side of the driving gear 410 away from the driving motor 300, and is used to block the driving gear 410 from moving axially in the direction away from the driving motor 300, and plays an axial limiting role on the driving gear 410, which can ensure the stable meshing transmission between the driving gear 410 and the driven gear 420.

[0074] Specifically, in this embodiment, Figure 2 , Fig.12 and Fig.13 As shown, the top cover 210 is provided with a buckle 211, and the face shell 100 is provided with a locking hole 120, and the buckle 211 is locked in the corresponding locking hole 120. In this arrangement, the top cover 210 is snapped with the face shell 100, and the assembly is simple and fast, and a firm connection between the two can be ensured. Of course, it should be noted that in other embodiments of the present application, the buckle 211 can also be provided on the face shell 100, and correspondingly, the locking hole 120 is provided on the top cover 210, that is, as long as the buckle 211 and the locking hole 120 can cooperate to snap together to fix the top cover 210 and the face shell 100, the present application does not limit the specific arrangement positions of the buckle 211 and the locking hole 120.

[0075] Specifically, in this embodiment, Figures 11 to 13As shown, the top cover 210 is provided with a limit insert 212, and the limit insert 212 is located at the rear side of the top cover 210; the face shell 100 is provided with a limit slot 130, and the limit insert 212 is inserted into the corresponding limit slot 130, and the limit slot 130 can prevent the corresponding limit insert 212 from moving upward. In this setting form, when assembling the filter assembly 200 to the face shell 100, the limit insert 212 can be inserted into the corresponding limit slot 130 to preliminarily position the top cover 210, and then the buckle 211 can be inserted into the corresponding card hole 120 to complete the installation of the top cover 210 and the filter assembly 200. In addition, the plug-in connection method is adopted on the back side, which can further improve the efficiency of disassembly and assembly.

[0076] Specifically, in this embodiment, Figure 2 as well as Figures 11 to 13 As shown, the buckle 211 is arranged on the front side and the front ends of both sides of the top cover 210, and the limiting insert 212 is arranged on the rear side of the top cover 210; the clamping hole 120 is arranged on the front side and the front ends of both sides of the face shell 100 and is arranged corresponding to the buckle 211; the limiting slot 130 is arranged on the rear side of the face shell 100 and is arranged corresponding to the limiting insert 212. Under this arrangement, when performing the assembly operation, it is convenient for the operator to operate in front of the face shell 100.

[0077] Finally, it should be noted that, in this article, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. An indoor unit of an air conditioner, characterized in that: include: The base comprises a face shell (100) and a base (500), wherein the face shell (100) is provided with an air inlet (110); the rear side of the face shell (100) is fixedly connected to the base (500); A filter assembly (200) comprises a top cover (210) detachably mounted on the air inlet (110), a reel rotatably mounted on the top cover (210), and a filter (230) rolled on the reel; A drive motor (300) and a transmission assembly, wherein the drive motor (300) is mounted on the base (500) and the reel is driven to rotate through the transmission assembly; the transmission assembly comprises a first meshing portion and a second meshing portion, wherein the first meshing portion is arranged on the base (500), and the second meshing portion is arranged on the top cover (210), the power input end of the first meshing portion is connected to the output shaft (310) of the drive motor (300), and the power output end is meshedly connected to the power input end of the second meshing portion, and the power output end of the second meshing portion is connected to the reel.

2. The indoor unit of the air conditioner according to claim 1, characterized in that: The first meshing portion comprises a driving gear (410), and the driving gear (410) is coaxially fixedly arranged with the output shaft (310) of the driving motor (300); the second meshing portion comprises a driven gear (420), and the driven gear (420) is coaxially fixedly arranged with the reel; the driving gear (410) is meshingly connected with the driven gear (420).

3. The indoor unit of the air conditioner according to claim 2, characterized in that: A slot (411) is provided on the end surface of the driving gear (410) facing the driving motor (300), and the output shaft (310) of the driving motor (300) is fixedly inserted in the slot (411).

4. The indoor unit of the air conditioner according to claim 2, characterized in that: The reel comprises a driving reel (221) and a driven reel (222), wherein the driving reel (221) and the driven reel (222) are respectively arranged at two opposite ends of the top cover (210) and are 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).

5. The indoor unit of the air conditioner according to claim 4, characterized in that: One end of the active reel (221) is provided with a limiting plug hole (223) extending along its axial direction, and a limiting platform (224) is provided on the side wall of the limiting plug hole (223); one end surface of the driven gear (420) is provided with a limiting buckle (421), the limiting buckle (421) is inserted into the limiting plug hole (223) along the axial direction of the active reel (221) and is engaged with the limiting platform (224), and the limiting plug hole (223) can limit the limiting buckle (421) from rotating around the axis.

6. The indoor unit of the air conditioner according to claim 2, characterized in that: 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).

7. The indoor unit of the air conditioner according to claim 6, characterized in that: The base (500) is provided with at least one limiting bar (520), and the limiting bar (520) is located between the drive motor (300) and the driving 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).

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

9. The indoor unit of the air conditioner according to claim 1, characterized in that: The first meshing portion comprises a plurality of driving gears (410) meshed in sequence for transmission, and the second meshing portion comprises a plurality of driven gears (420) meshed in sequence for transmission, wherein along the transmission direction, the first driving gear of the first meshing portion is coaxially fixedly arranged with the output shaft (310) of the drive motor (300), the last driving gear of the first meshing portion is meshedly connected with the first driven gear of the second meshing portion, and the last driven gear of the second meshing portion is coaxially fixedly arranged with the reel.

10. The indoor unit of the air conditioner according to claim 1, characterized in that: The first meshing portion includes a worm, and the second meshing portion includes a worm wheel. The worm is meshingly connected with the worm wheel.

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