Air inlet filtering mechanism of indoor unit of air conditioner and air conditioner

Abstract

The invention provides an air inlet filtering mechanism of an air conditioner indoor unit and an air conditioner, relates to the technical field of air conditioners, and aims to solve the problem that a filter screen is possibly in a loose state after being mounted. The air inlet filtering mechanism of the air conditioner indoor unit comprises a filter screen, an unwinding assembly and a winding assembly, the unwinding assembly comprises an unwinding shaft, the winding assembly comprises a winding shaft, one end of the filter screen is fixedly connected to the unwinding shaft in the circumferential direction, the other end of the filter screen is fixedly connected to the winding shaft in the circumferential direction, and at least one of the winding shaft and the unwinding shaft is fixedly connected with a tensioning adjusting wheel in the circumferential direction. The air inlet filtering mechanism of the air conditioner indoor unit can tighten the filter screen.

Description

Technical Field

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

[0002] In the prior art, a filter is usually set at the inlet of the indoor unit of the air conditioner to filter the airflow entering the indoor unit of the air conditioner. As the filter is used continuously, the dust on it will continue to increase, thereby affecting the air intake efficiency. For this reason, some air conditioners are provided with a filter that can be rolled up or unrolled. If the filter roll of the air conditioner is reinstalled after being disassembled, part of the two rolls of the filter may be loose. Once the filter is loose, it is difficult to maintain the seal between the filter and the surrounding parts, so it is easy to cause the airflow to enter the indoor unit without being filtered by the filter, resulting in a significant increase in the dust accumulation speed in the indoor unit, affecting the service life of the air conditioner. Summary of the invention

[0003] The first object of the present invention is to provide an air intake filter mechanism for an indoor unit of an air conditioner to solve the technical problem that the existing filter may be in a loose state after installation.

[0004] The air intake filter mechanism of the indoor unit of an air conditioner provided by the present invention comprises a filter screen, a unwinding assembly and a rewinding assembly, the unwinding assembly comprises a unwinding shaft, the rewinding assembly comprises a rewinding shaft, one end of the filter screen is circumferentially fixedly connected to the unwinding shaft, and the other end of the filter screen is circumferentially fixedly connected to the rewinding shaft; at least one of the rewinding shaft and the unwinding shaft is circumferentially fixedly connected with a tensioning adjustment wheel.

[0005] The beneficial effects brought by the air intake filter mechanism of the air conditioner indoor unit of the present invention are:

[0006] By fixing a tensioning adjustment wheel on at least one of the unwinding shaft and the winding shaft, after the unwinding assembly and the winding shaft are installed, the tensioning adjustment wheel can be used to drive the unwinding shaft and / or the winding shaft to rotate. Since one end of the filter screen is fixed to the winding shaft and the other end of the filter screen is fixed to the unwinding shaft, the movement of the unwinding shaft and / or the winding shaft can drive the filter screen whose end is fixed to it to move, thereby tightening the filter screen on the unwinding shaft and / or the winding shaft to ensure the filtration efficiency.

[0007] In a preferred technical solution, a plurality of recessed portions are provided on the circumferential edge of the tensioning and adjusting wheel, and the plurality of recessed portions are distributed at intervals along the circumference of the tensioning and adjusting wheel.

[0008] By providing a tensioning adjustment wheel with multiple recessed portions, when adjusting the tensioning adjustment wheel, the operator's fingers are partially embedded in the recessed portions, which enable better cooperation with the tensioning adjustment wheel. Moreover, after the tensioning adjustment wheel is rotated by a certain angle, there are still recessed portions for the fingers to be inserted into, thereby driving the tensioning adjustment wheel to continue rotating.

[0009] In a preferred technical solution, the winding assembly includes a winding shell, and the winding assembly is used to accommodate the winding shaft and the filter screen wound on the winding shaft; the unwinding assembly includes an unwinding shell, and the unwinding shell is used to accommodate the unwinding shaft and the filter screen wound on the unwinding shaft;

[0010] At least one of the winding shell and the unwinding shell is provided with a hollow portion whose position corresponds to the tension adjustment wheel.

[0011] By arranging a hollow portion at a position corresponding to the tensioning adjustment wheel on at least one of the winding shell and the unwinding shell, the tensioning adjustment wheel can be exposed from the winding shell and the unwinding shell, thereby facilitating the rotation of the tensioning adjustment wheel from outside the winding shell and the unwinding shell, thereby driving the winding shaft and / or the unwinding shaft to rotate, thereby improving the convenience of operation.

[0012] In a preferred technical solution, the hollow portion is an upper hollow portion arranged on the upper part of the winding shell and / or the unwinding shell.

[0013] Generally speaking, the air inlet is located at the upper part of the wall-mounted air conditioner indoor unit, so the air intake filter mechanism of the air conditioner indoor unit is also located at the top of the wall-mounted air conditioner indoor unit. After the operator installs the air intake filter mechanism of the air conditioner indoor unit in place, he or she can directly pass his or her hand through the upper hollow part of the winding shell and / or the unwinding shell to continuously and quickly turn the tensioning adjustment wheel.

[0014] In a preferred technical solution, both the unwinding shaft and the rewinding shaft are fixedly connected to the tensioning adjustment wheel.

[0015] The unwinding shaft and the rewinding shaft are both fixedly connected to the tensioning adjustment wheel. When the filter screen needs to be tightened, the filter screen can be tightened by adjusting either the unwinding assembly or the rewinding assembly, thereby improving the convenience of operation.

[0016] In a preferred technical solution, the unwinding shaft and the rewinding shaft include shaft bodies, and the shaft bodies are integrally connected to the tensioning adjustment wheel.

[0017] Integrally molding the shaft body and the tensioning adjustment wheel can improve the connection strength between the tensioning adjustment wheel and the unwinding shaft and the reeling shaft, avoiding slippage between the two, and can also reduce manufacturing costs and reduce the complexity of assembly operations.

[0018] In a preferred technical solution, the unwinding shaft and the rewinding shaft further include a shaft end support portion, and the shaft end support portion, the tensioning adjustment wheel and the shaft body are arranged in sequence.

[0019] By arranging the shaft end support, the tensioning adjustment wheel and the shaft body in sequence, the tensioning adjustment wheel can form a simply supported beam force structure on the unwinding shaft and the winding shaft, avoiding the cantilever beam structure that causes the strength of the winding shaft and the unwinding shaft to be reduced.

[0020] In a preferred technical solution, inner walls of the winding shell and the unwinding shell are provided with an annular wall, and the annular wall is configured to cooperate with the shaft end support portion.

[0021] By providing an annular wall, the shaft end support portion can be supported, and the annular wall is provided to accommodate and support the shaft end support portion, so that the end faces of the winding shell and the unwinding shell can be kept intact, thereby improving the rigidity of the end faces of the winding shell and the unwinding shell.

[0022] In a preferred technical solution, the annular wall is provided with a notch, and the notch is configured to allow the shaft end support portion to be squeezed with both side walls of the notch when passing through the notch.

[0023] By providing a notch on the annular wall, and the notch allows the shaft end support part to squeeze the side wall of the notch when passing through, it not only ensures that the unwinding shaft and the winding shaft will not move out of the annular wall from the notch during operation, but also when the unwinding shaft and the winding shaft need to be removed and the filter screen needs to be replaced, they can be easily separated from the unwinding shell and the winding shell, thereby improving the convenience of operation.

[0024] The second object of the present invention is to provide an air conditioner to solve the technical problem that the filter may be in a loose state after installation.

[0025] The air conditioner provided by the present invention comprises an air conditioner indoor unit, wherein the air conditioner indoor unit is provided with an air inlet, and the air inlet is provided with any one of the above-mentioned air inlet filter mechanisms for the air conditioner indoor unit.

[0026] By providing the above-mentioned air intake filter mechanism for the indoor unit of the air conditioner in the air conditioner, the air conditioner accordingly has all the advantages of the above-mentioned air intake filter mechanism for the indoor unit of the air conditioner, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments or the background technology description will be briefly introduced below. Obviously, the drawings in the following description 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.

[0028] Figure 1 A schematic diagram of the structure of an air intake filter mechanism for an indoor unit of an air conditioner provided in Embodiment 1 of the present invention;

[0029] Figure 2A three-dimensional disassembled diagram of an air intake filter mechanism of an indoor unit of an air conditioner provided in Embodiment 1 of the present invention;

[0030] Figure 3 A schematic structural diagram of an air intake filter mechanism of an indoor unit of an air conditioner provided in the first embodiment of the present invention as viewed from another direction;

[0031] Figure 4 A schematic diagram of the combined structure of a reel-up shaft and a tensioning adjustment wheel in an air intake filter mechanism of an indoor unit of an air conditioner provided in Embodiment 1 of the present invention;

[0032] Figure 5 This is a structural schematic diagram of an upper shell in one implementation of an air intake filter mechanism for an air conditioner indoor unit provided in Embodiment 1 of the present invention, viewed obliquely from below.

[0033] Description of reference numerals:

[0034] 10-filter screen; 20-unwinding shaft; 21-shaft body; 22-shaft end support portion; 30-rewinding shaft; 40-tensioning adjustment wheel; 41-recessed portion; 50-upper shell; 51-unwinding shell; 52-rewinding shell; 53-hollow portion; 54-annular wall. DETAILED DESCRIPTION

[0035] 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.

[0036] Embodiment 1:

[0037] Figure 1 A schematic diagram of the structure of an air intake filter mechanism for an indoor unit of an air conditioner provided in Embodiment 1 of the present invention; Figure 2 A three-dimensional disassembled diagram of an air intake filter mechanism of an indoor unit of an air conditioner provided in Embodiment 1 of the present invention; Figure 3 This is a schematic structural diagram of the air inlet filter mechanism of the air conditioner indoor unit provided by the first embodiment of the present invention as viewed from another direction. Figure 1-Figure 3 As shown, the air intake filter mechanism of the indoor unit of the air conditioner provided in the first embodiment of the present invention includes a filter 10, a unwinding assembly and a winding assembly, the unwinding assembly includes a unwinding shaft 20, the winding assembly includes a winding shaft 30, one end of the filter 10 is circumferentially fixedly connected to the unwinding shaft 20, the other end of the filter 10 is circumferentially fixedly connected to the winding shaft 30, and at least one of the winding shaft 30 and the unwinding shaft 20 is circumferentially fixedly connected with a tensioning adjustment wheel 40.

[0038] Among them, the wall-mounted air conditioner indoor unit used in this embodiment is provided with an air inlet on its top, and the air inlet is roughly rectangular. Accordingly, when the air conditioner indoor unit is in use, the rectangular area of ​​the filter 10 filters the air. After a preset period of time, such as half a year or three months, the unwinding component releases the cleaner filter 10, and the winding component winds up the used filter 10. When the unwinding component completely releases the filter 10, all the filters 10 have been used, and it is necessary to replace the new filter 10 and install it in the air intake filter mechanism of the air conditioner indoor unit. After the new filter 10 is installed, the newly installed filter 10 is not necessarily tight, which easily leads to a gap between the edge of the filter 10 and the corresponding component, and the air can enter the internal space of the air conditioner indoor unit through the gap without being filtered.

[0039] By fixing the tensioning adjustment wheel 40 to at least one of the unwinding shaft 20 and the winding shaft 30, after the unwinding assembly and the winding assembly are installed, the tensioning adjustment wheel 40 can be used to drive the unwinding shaft 20 and / or the winding shaft 30 to rotate. Since one end of the filter screen 10 is fixed to the winding shaft 30 and the other end of the filter screen 10 is fixed to the unwinding shaft 20, the movement of the unwinding shaft 20 and / or the winding shaft 30 can drive the filter screen 10 whose end is fixed thereto to move, thereby tightening the filter screen 10 on the unwinding shaft 20 and / or the winding shaft 30 to ensure the filtration efficiency.

[0040] Figure 4 Schematic diagram of the combined structure of the reel-up shaft and the tensioning adjustment wheel in the air intake filter mechanism of the indoor unit of the air conditioner provided in the first embodiment of the present invention; Figure 1-Figure 4 As shown, preferably, a plurality of recessed portions 41 are provided on the circumferential edge of the tensioning and adjusting wheel 40 , and the plurality of recessed portions 41 are distributed at intervals along the circumference of the tensioning and adjusting wheel 40 .

[0041] Specifically, in this embodiment, the number of recessed portions 41 on each tensioning adjustment wheel 40 may be eight, and the tensioning adjustment wheel 40 is roughly plate-shaped. The tensioning adjustment wheel 40 provided with multiple recessed portions 41 has a roughly plum blossom-shaped hand wheel profile.

[0042] By providing a tensioning adjustment wheel 40 with a plurality of recessed portions 41, when adjusting the tensioning adjustment wheel 40, the operator's fingers are partially embedded in the recessed portions 41, so as to better cooperate with the tensioning adjustment wheel 40. Moreover, after the tensioning adjustment wheel 40 is rotated by a certain angle, there are still recessed portions 41 for the fingers to be inserted into, so as to drive the tensioning adjustment wheel 40 to continue rotating.

[0043] In another implementation, a protrusion or a depression may be provided on the axial end face of the tensioning and adjusting wheel 40, and by touching the protrusion or the depression by hand, the tensioning and adjusting wheel 40 may be driven to rotate, thereby driving the unwinding shaft 20 and / or the rewinding shaft 30 to rotate, so as to tension the filter screen 10 between the unwinding assembly and the rewinding assembly. Alternatively, knurling may be provided on the outer circumferential surface of the tensioning and adjusting wheel 40 to increase friction, which is also convenient for driving the tensioning and adjusting wheel 40 to rotate.

[0044] like Figure 1-Figure 3 and Figure 5 As shown, preferably, the winding assembly includes a winding shell 52, which is used to accommodate the winding shaft 30 and the filter screen 10 wound on the winding shaft 30; the unwinding assembly includes an unwinding shell 51, which is used to accommodate the unwinding shaft 20 and the filter screen 10 wound on the unwinding shaft 20;

[0045] At least one of the winding shell 52 and the unwinding shell 51 is provided with a hollow portion 53 whose position corresponds to the tension adjustment wheel 40 .

[0046] In this embodiment, the winding assembly and the unwinding assembly can be both arranged in the upper shell 50, and the two ends of the upper shell 50 are respectively an unwinding shell 51 and a winding shell 52. In this embodiment, the unwinding shell 51 and the winding shell 52 are both provided with a hollow portion 53 corresponding to the tensioning adjustment wheel 40.

[0047] By setting a hollow portion 53 at a position corresponding to the tensioning adjustment wheel 40 on at least one of the winding shell 52 and the unwinding shell 51, the tensioning adjustment wheel 40 can be exposed from the winding shell 52 and the unwinding shell 51, thereby facilitating the rotation of the tensioning adjustment wheel 40 from outside the winding shell 52 and the unwinding shell 51, thereby driving the winding shaft 30 and / or the unwinding shaft 20 to rotate, thereby improving the convenience of operation.

[0048] In another implementation, the ends of the winding shaft 30 and / or the unwinding shaft 20 may pass through the winding shell 52 and / or the unwinding shell 51, and a tensioning adjustment wheel 40 may be provided at the protruding portion, so that the tensioning adjustment wheel 40 is exposed as a whole to facilitate operation of the tensioning adjustment wheel 40.

[0049] like Figure 1-Figure 3 and Figure 5 As shown, preferably, the hollow portion 53 is an upper hollow portion arranged on the upper part of the winding shell 52 and / or the unwinding shell 51.

[0050] Specifically, in this embodiment, the upper hollow portion may be a hollow area disposed on the upper portion of the winding shell 52 and / or the unwinding shell 51 of the cylindrical shell; the central angle corresponding to the hollow area may be 50°-70°.

[0051] Generally speaking, the air inlet is located at the upper part of the wall-mounted air conditioner indoor unit, so the air intake filter mechanism of the air conditioner indoor unit is also located at the top of the wall-mounted air conditioner indoor unit. After the operator installs the air intake filter mechanism of the air conditioner indoor unit in place, he or she can directly pass his or her hand through the upper hollow part of the winding shell 52 and / or the unwinding shell 51 to continuously and quickly turn the tensioning adjustment wheel 40.

[0052] like Figure 1-Figure 4 As shown, preferably, both the unwinding shaft 20 and the reeling shaft 30 are fixedly connected with a tensioning adjustment wheel 40 .

[0053] In this embodiment, both the unwinding assembly and the rewinding assembly are driven by motors, so tensioning adjustment wheels 40 are provided on both the unwinding shaft 20 and the rewinding shaft 30 .

[0054] The unwinding shaft 20 and the rewinding shaft 30 are both fixedly connected to the tensioning adjustment wheel 40. When the filter screen 10 needs to be tightened, the filter screen 10 can be tightened by adjusting either the unwinding assembly or the rewinding assembly, thereby improving the convenience of operation.

[0055] In another implementation, the unwinding shaft 20 is driven by a spring assembly and the winding assembly is driven by a motor, so only the tension adjustment wheel 40 is provided on the winding shaft 30. Alternatively, the winding assembly is driven by a spring assembly and the unwinding assembly is driven by a motor. When the filter screen 10 is just being used, the spring assembly is at the stage of maximum elastic potential energy. With continuous winding, the elastic deformation of the spring assembly gradually decreases. In this case, only the tension adjustment wheel 40 may be provided on the unwinding shaft 20, while the tension adjustment wheel 40 may not be provided on the winding shaft 30.

[0056] like Figure 4 As shown, preferably, the unwinding shaft 20 and the reeling shaft 30 include a shaft body 21 , and the shaft body 21 is integrally connected with the tensioning adjustment wheel 40 .

[0057] In this embodiment, the tension adjustment wheel 40 is roughly located at the ends of the unwinding shaft 20 and the reeling shaft 30, more specifically, it can be located at the front ends of the unwinding shaft 20 and the reeling shaft 30, and most of the middle areas of the reeling shaft 30 and the unwinding shaft 20 are used to fix the filter 10 and wind the filter 10. In this application, the front end and the front side refer to the end and the side of the wall-mounted air conditioner indoor unit away from the wall on which it is installed.

[0058] Integrally molding the shaft body 21 and the tensioning adjustment wheel 40 can improve the connection strength between the tensioning adjustment wheel 40 and the unwinding shaft 20 and the winding shaft 30 to avoid slipping therebetween, and can also reduce manufacturing costs and reduce the complexity of assembly operations.

[0059] like Figure 4As shown, preferably, the unwinding shaft 20 and the rewinding shaft 30 further include a shaft end support portion 22, and the shaft end support portion 22, the tensioning adjustment wheel 40 and the shaft body 21 are arranged in sequence.

[0060] By arranging the shaft end support part 22, the tensioning adjustment wheel 40 and the shaft body 21 in sequence, the tensioning adjustment wheel 40 can form a simply supported beam force-bearing structure on the unwinding shaft 20 and the winding shaft 30, avoiding the cantilever beam structure that causes the strength of the winding shaft 30 and the unwinding shaft 20 to be reduced.

[0061] like Figure 5 As shown, preferably, the inner walls of the winding shell 52 and the unwinding shell 51 are provided with an annular wall 54 , and the annular wall 54 is configured to cooperate with the shaft end support portion 22 .

[0062] By setting the annular wall 54, the shaft end support part 22 can be supported, and the annular wall 54 is set to accommodate and support the shaft end support part 22, so that the end faces of the winding shell 52 and the unwinding shell 51 can be kept complete, so as to improve the rigidity of the end faces of the winding shell 52 and the unwinding shell 51.

[0063] In another implementation, the shaft end support portions 22 of the unwinding shaft 20 and the winding shaft 30 may be inserted into holes located in the unwinding housing 51 and the winding housing 52 .

[0064] like Figure 5 As shown, preferably, the annular wall 54 is provided with a notch, and the notch is configured to allow the shaft end support portion 22 to be squeezed with both side walls of the notch when passing through the notch.

[0065] Specifically, in this embodiment, the central angle of the notch can be 90°-120°. Since the annular wall 54 and the shaft end support portion 22 are not absolutely rigid bodies, when the shaft end support portion 22 is placed in the annular wall 54 or actively removed from the annular wall 54 to disassemble the unwinding assembly and the winding assembly, the annular wall 54 and the shaft end support portion 22 squeeze each other, and the shaft end support portion 22 can also pass through the notch.

[0066] By setting a notch on the annular wall 54, and the notch allows the shaft end support part 22 to squeeze the side wall of the notch when passing through, it not only ensures that the unwinding shaft 20 and the winding shaft 30 will not move out of the annular wall 54 from the notch during operation, but also when the unwinding shaft 20 and the winding shaft 30 need to be removed and the filter screen 10 needs to be replaced, it can be easily separated from the unwinding shell 51 and the winding shell 52, thereby improving the convenience of operation.

[0067] In another implementation, the annular wall 54 may have no notches on the entire circumference. Since the shaft body 21 is relatively long and not an absolutely rigid body, the shaft body 21 may be deformed and slightly shortened by applying an axial force so that it can be inserted into the annular wall 54 .

[0068] Embodiment 2:

[0069] Embodiment 2 further provides an air conditioner, including an air conditioner indoor unit, wherein the air conditioner indoor unit is provided with an air inlet, and the air inlet is provided with any of the above-mentioned air inlet filter mechanisms for the air conditioner indoor unit.

[0070] By providing the above-mentioned air intake filter mechanism for the indoor unit of the air conditioner in the air conditioner, the air conditioner accordingly has all the advantages of the above-mentioned air intake filter mechanism for the indoor unit of the air conditioner, which will not be described in detail here.

[0071] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

[0072] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used 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 term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including 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. In the absence of further restrictions, the elements defined by the sentence "comprises a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0073] In the above embodiments, the descriptions of directions such as “upper” and “lower” are all based on the drawings.

[0074] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those 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.

[0075] Thus, the present invention will not be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air intake filter mechanism for an indoor unit of an air conditioner, characterized in that: The invention comprises a filter screen (10), a reeling assembly and a reeling assembly, wherein the reeling assembly comprises a reeling shaft (20), and the reeling assembly comprises a reeling shaft (30). One end of the filter screen (10) is circumferentially fixedly connected to the reeling shaft (20), and the other end of the filter screen (10) is circumferentially fixedly connected to the reeling shaft (30); at least one of the reeling shaft (30) and the reeling shaft (20) is circumferentially fixedly connected to a tensioning adjustment wheel (40).

2. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 1, characterized in that: A plurality of recessed portions (41) are provided on the circumferential edge of the tension adjustment wheel (40), and the plurality of recessed portions (41) are distributed at intervals along the circumference of the tension adjustment wheel (40).

3. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 2, characterized in that: The winding assembly comprises a winding shell (52), and the winding assembly is used to accommodate the winding shaft (30) and the filter screen (10) wound on the winding shaft (30); the unwinding assembly comprises an unwinding shell (51), and the unwinding shell (51) is used to accommodate the unwinding shaft (20) and the filter screen (10) wound on the unwinding shaft (20); At least one of the winding shell (52) and the unwinding shell (51) is provided with a hollow portion (53) whose position corresponds to the tension adjustment wheel (40).

4. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 3, characterized in that: The hollow portion (53) is an upper hollow portion arranged on the upper portion of the winding shell (52) and / or the unwinding shell (51).

5. The air intake filter mechanism for an indoor unit of an air conditioner according to any one of claims 1 to 4, characterized in that: The unwinding shaft (20) and the rewinding shaft (30) are both fixedly connected to the tensioning adjustment wheel (40).

6. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 3 or 4, characterized in that: The unwinding shaft (20) and the rewinding shaft (30) comprise a shaft body (21), and the shaft body (21) is integrally connected to the tensioning adjustment wheel (40).

7. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 6, characterized in that: The unwinding shaft (20) and the rewinding shaft (30) further comprise a shaft end support portion (22), and the shaft end support portion (22), the tensioning adjustment wheel (40) and the shaft body (21) are arranged in sequence.

8. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 7, characterized in that: The inner walls of the winding shell (52) and the unwinding shell (51) are provided with an annular wall (54), and the annular wall (54) is configured to cooperate with the shaft end support portion (22).

9. The air intake filter mechanism for an indoor unit of an air conditioner according to claim 8, characterized in that: The annular wall (54) is provided with a notch, and the notch is configured to allow the shaft end support portion (22) to be squeezed with both side walls of the notch when passing through the notch.

10. An air conditioner, characterized in that: The air conditioner comprises an air conditioner indoor unit, the air conditioner indoor unit is provided with an air inlet, and the air inlet is provided with an air inlet filter mechanism for the air conditioner indoor unit according to any one of claims 1 to 9.

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