CN210638114U - Air guide assembly for air conditioner indoor unit and air conditioner indoor unit - Google Patents

Abstract

The utility model relates to an air conditioning technology field to solve the problem that the drive mechanism structure of current pendulum leaf is complicated, restriction pendulum leaf pendulum changes, provide a machine in air guide component and air conditioning for machine in the air conditioning for this reason, this air guide component includes: the swinging blades comprise blade parts and shaft parts, the shaft parts are pivotally connected to a fixed structure of the indoor unit, and worm gear teeth are arranged on the shaft parts; a drive rod including a plurality of worm segments capable of mating with worm gear teeth; and the driving device is connected with the driving rod and is used for driving the driving rod to rotate so as to drive the swinging blade to rotate relative to the fixed structure. The utility model provides a wind-guiding subassembly has utilized the worm gear structure to realize the drive to the pendulum leaf, has broken through the restriction of parallel four-bar linkage structure to pendulum leaf swing angle, has realized 360 degrees rotations of pendulum leaf, and compact structure, and transmission efficiency is high, and the flexibility of pendulum leaf is stronger, has effectively solved the poor problem of air conditioner air supply effect.

Description

Air guide assembly for air conditioner indoor unit and air conditioner indoor unit

Technical Field

The utility model relates to an air conditioning technology field, concretely relates to machine in wind-guiding subassembly and air conditioning for machine in air conditioning.

Background

In the working process of the indoor unit of the air conditioner, the swing blade is mainly used for adjusting the air supply direction of the air conditioner, and the indoor unit of the air conditioner can realize fixed air supply or continuous air sweeping within a certain angle range by virtue of the swing blade structure.

The existing swing blade structure generally comprises a manual swing blade and an automatic swing blade. The manual swing blade is simple in structure, and a user can adjust the swing blade angle within the range of the swing blade structure allowed to swing according to the requirement of the user so as to change the air outlet direction of the indoor unit of the air conditioner. Although the manual swing blade is simple in structure and easy to operate, the air outlet direction is relatively fixed, and the user operation is complex, so that the existing air conditioner mostly adopts the automatic swing blade to realize the adjustment of the air outlet direction.

The existing automatic swinging blades almost all drive parallel four connecting rods connected to the swinging blades through a motor, so that linkage of the swinging blades is realized, a user can set a working mode of the swinging blades in the working process of an indoor unit of the air conditioner, and automatic adjustment of the angle of the swinging blades is realized. However, the existing swing blade connecting rod structure is limited by the limitation of a parallel four-bar structure, and can only realize swing angles of 60 degrees on the left and right sides, so that the air sweeping range of the indoor unit of the air conditioner is limited, and the connecting rod structure design can occupy air duct space, so that the air output is lost.

Accordingly, there is a need in the art for a new air guide assembly that solves the above problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned problem among the prior art, the problem of the drive mechanism structure complicacy, restriction pendulum leaf pendulum commentaries on classics of solving current pendulum leaf promptly, the utility model discloses an aspect provides an air guide component for machine in air conditioning, and this air guide component includes: a plurality of swinging blades comprising blade portions and a shaft portion pivotally connected to a fixed structure of the indoor unit, the shaft portion having worm gear teeth thereon; a drive rod including a plurality of worm segments mateable with the worm gear teeth; and the driving device is connected with the driving rod and is used for driving the driving rod to rotate so as to drive the swinging blade to rotate relative to the fixed structure.

In the above preferred technical solution of the air guide assembly for an indoor unit of an air conditioner, the fixing structure is a bottom plate of a volute tongue of the indoor unit, the bottom plate is formed with mounting holes, the number of the mounting holes is matched with the number of the swing blades, and the shaft portion is pivotally connected to the mounting holes.

In the above preferred technical scheme of the air guide assembly for the indoor unit of the air conditioner, one end of the shaft portion, which is close to the blade portion, extends outwards to form a first limiting disc, the inner wall surface of the mounting hole protrudes inwards to form a support table, the inner diameter of the support table is larger than the diameter of the shaft portion and smaller than the diameter of the first limiting disc, the inner wall surface of the mounting hole further protrudes inwards to form a plurality of cantilever clamping jaws, and in a mounted state, the first limiting disc is located between the cantilever clamping jaws and the support table so as to limit the position of the support table and the cantilever clamping jaws.

In the above preferable technical scheme of the air guide assembly for the indoor unit of the air conditioner, a second limiting disc is further arranged above the first limiting disc, the mounting hole is a counter-sunk hole, and in a mounted state, the lower surface of the second limiting disc is abutted to the upper surface of the counter-sunk hole.

In the above-described preferred embodiment of the air guide assembly for an indoor unit of an air conditioner, the blade portion is detachably connected to the shaft portion.

In the above-described preferred embodiment of the air guide assembly for an indoor unit of an air conditioner, the blade portion is formed with at least one vent hole.

In the above-described preferred embodiment of the air guide assembly for an indoor unit of an air conditioner, the blade portion is formed with a plurality of oblong vent holes.

In the above-mentioned preferred technical solution of the air guide assembly for an indoor unit of an air conditioner, the blade portions are disposed to be capable of overlapping each other, so that the blade portions can block the air outlet of the indoor unit after the swing blades rotate by a set angle.

In the above preferred embodiment of the air guide assembly for an indoor unit of an air conditioner, the worm gear is formed on the shaft; or

The swinging blade comprises a gear ring, the gear ring is fixedly connected with the shaft part, and gear teeth of the worm gear are formed on the gear ring.

The second aspect of the present invention further provides an air conditioner indoor unit, wherein the air conditioner indoor unit comprises the air guide assembly according to any one of the above technical solutions.

The utility model provides an air guide component for an air conditioner indoor unit, which utilizes a deformed worm and gear mechanism as a transmission mechanism for connecting a swing blade, compared with the prior art, the worm and gear transmission mechanism breaks through the limitation of a parallel four-bar linkage transmission mechanism on the swing angle of the swing blade, not only realizes 360-degree barrier-free rotation of the swing blade, but also avoids the phenomenon of air volume loss caused by the fact that the parallel four-bar linkage transmission mechanism occupies air duct space, the utility model discloses a driving rod is formed by arranging worm gear teeth on the shaft part of the swing blade and integrating a plurality of worms matched with the worm gear teeth on the same thin rod, greatly simplifies the structure of the transmission mechanism, reduces the size of the transmission mechanism, leads the structure of the air guide component of the air conditioner indoor unit to be more compact, the transmission efficiency to be higher, the flexibility of the swing blade to be stronger, thereby increasing the wind sweeping range of the air conditioner, the problem that the comfort level is poor that the air conditioner directly blows and leads to can be effectively solved, user experience can be promoted by a wide margin.

Furthermore, a support table and a cantilever clamping jaw are arranged in a mounting hole for mounting the swing blade, a first limit disc is arranged on a shaft part of the swing blade, the support table can be used for limiting the descending of the first limit disc in the process of mounting the swing blade, the cantilever clamping jaw is used for limiting the ascending of the first limit disc at the same time, the cantilever clamping jaw with certain elasticity can enable the first limit disc to be easily clamped between the cantilever clamping jaw and the support table, the pivot connection of the shaft part of the swing blade and the mounting hole is conveniently realized, the connection structure enables the swing blade to be conveniently and quickly mounted in the mounting hole and kept to flexibly rotate in the mounting hole, and the quick mounting of the swing blade is realized.

Furthermore, the second limiting plate is arranged above the first limiting plate, the mounting hole is formed into the counter bore, and the second limiting plate can be accommodated in the counter bore, so that the attractiveness of the air guide assembly is guaranteed, the contact area between the swing blade and the fixing structure can be increased, the rotation stability of the swing blade is enhanced, and the limiting strength of the swing blade is enhanced.

Further, through being connected blade portion and axial region with the detachable mode for blade portion and axial region can adopt different materials, and the axial region can take place the friction with the mounting hole owing to need rotate, can adopt the great material of the higher hardness of intensity, and the blade can adopt the less flexible higher light material of intensity, is favorable to practicing thrift manufacturing cost like this to and make things convenient for the change maintenance of axial region after wearing and tearing.

Further, through set up at least one ventilation hole on blade portion, for example set up a plurality of evenly distributed's long circular ventilation hole, can utilize the aerodynamic principle to weaken the wind speed of air supply in-process, reduce the noise because of the higher arouses of wind speed for the air-out of air conditioner is softer more quiet, realizes the effect of no wind sense, and then promotes user experience.

Furthermore, the blade parts of the swing blades are arranged to be mutually overlapped, so that the swing blades can be mutually overlapped to block an air outlet of the indoor unit when rotating to a certain angle, further the air duct is further protected, and the dustproof performance of the air conditioner is enhanced.

Furthermore, the worm gear teeth are formed on the shaft part, so that the processing of the worm gear teeth is facilitated, the whole size of the transmission mechanism can be reduced, the occupied installation space is reduced, and the occupied installation space of the worm gear and worm transmission mechanism, namely the movement space of the worm gear and worm transmission mechanism, is not interfered by other parts and components, is not limited by other parts and the structure of the parts, and is favorable for the compact design of the air guide assembly and the barrier-free rotation of the swing blade.

Further, through forming the worm wheel teeth on the ring gear, with ring gear fixed connection to axial region on, ring gear and axial region separation processing can only change the ring gear after the ring gear wearing and tearing, are favorable to reducing cost of maintenance.

The utility model discloses the indoor unit of air conditioning further provides owing to dispose the air guide component among the aforementioned arbitrary technical scheme, consequently possesses the all technological effects of above-mentioned air guide component, no longer gives unnecessary details here.

Drawings

The utility model discloses a machine in air guide assembly and air conditioning for machine in air conditioning is described below with reference to the attached drawing, in the attached drawing:

fig. 1 is a schematic partial structural view of an air conditioning indoor unit according to an embodiment of the present invention, in which an installation position of a swing blade in an air guide assembly is shown;

fig. 2 is a schematic partial structural view of an indoor unit of an air conditioner according to an embodiment of the present invention, wherein an installation position of a driving rod in an air guide assembly is shown;

fig. 3 is a schematic structural view of an air guide assembly for an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic structural diagram of a swing blade according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a bottom plate of a vortex tongue according to an embodiment of the present invention, in which a structure of a mounting hole is shown;

FIG. 7 is an enlarged partial view of FIG. 6 at B;

fig. 8 is a schematic cross-sectional view of a swing blade and a mounting hole provided in an assembled state according to an embodiment of the present invention;

list of reference numerals:

1. a housing; 2. a volute tongue; 20. an air outlet; 21. a base plate; 210. mounting holes; 2100. the upper surface of the counterbore; 2101. an inner wall surface; 2102. a support table; 2103. a cantilever jaw; 3. swinging the leaves; 30. a blade section; 300. a vent hole; 31. a shaft portion; 310. worm gear teeth; 311. a first limiting disc; 312. a second limiting disc; 4. a drive rod; 40. a worm section; 5. an electric motor.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the following embodiments are explained with reference to a wall-mounted air conditioning indoor unit, the present invention is not limited thereto, and the present invention is also applicable to a cabinet air conditioner, an embedded air conditioning indoor unit, and the like, and the application thereof is not limited thereto.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details.

It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The problem that the drive mechanism structure of current pendulum leaf was complicated, restriction pendulum leaf was swung and is changeed based on the background art points out, the utility model provides a machine in air conditioning for machine in air conditioning's air guide component and dispose this air guide component to 360 rotations that realize the pendulum leaf, the air supply scope of machine in the increase air conditioning promotes the user's of air supply in-process sense organ and experiences.

Referring to fig. 1 to 8, fig. 1 is a schematic view of a part of a structure of an indoor unit of an air conditioner according to an embodiment of the present invention, in which an installation position of a swing blade in an air guide assembly is shown; fig. 2 is a schematic partial structural view of an indoor unit of an air conditioner according to an embodiment of the present invention, wherein an installation position of a driving rod in an air guide assembly is shown; fig. 3 is a schematic structural view of an air guide assembly for an indoor unit of an air conditioner according to an embodiment of the present invention; FIG. 4 is an enlarged view of a portion of FIG. 3 at A; fig. 5 is a schematic structural diagram of a swing blade according to an embodiment of the present invention; fig. 6 is a schematic structural diagram of a bottom plate of a vortex tongue according to an embodiment of the present invention, in which a structure of a mounting hole is shown; FIG. 7 is an enlarged partial view of FIG. 6 at B; fig. 8 is a schematic cross-sectional view of a swing blade and a mounting hole provided in an assembled state according to an embodiment of the present invention.

Referring to fig. 1 and 2 at first, the embodiment of the present invention provides an air-conditioning indoor unit, which includes a casing 1, a framework for supporting each component and a fan are disposed in the casing 1, a fan volute tongue 2 constitutes an air duct of the indoor unit, a swing blade 3 is disposed at an air outlet 20 of the air duct, the swing blade 3 is used for changing an air outlet direction, specifically, the swing blade 3 is pivotally connected to a bottom plate 21 of the volute tongue 2, and alternatively, the swing blade 3 may also be pivotally connected to a top plate of the swing blade 3. In this embodiment, the swing blade 3 is pivotally connected to the bottom plate 21 of the vortex tongue 2, and the bottom plate 21 of the vortex tongue 2 is connected to the framework of the indoor unit in a clamping manner.

The following describes the air guide assembly in embodiments of the present invention in detail.

Referring to fig. 3, the air guide assembly in the embodiment of the present invention includes a plurality of swing blades 3, a driving rod 4, and a driving device.

Specifically, referring to fig. 4 and 5, the swing blade 3 includes a blade portion 30 and a shaft portion 31, and the blade portion 30 and the shaft portion 31 may be made as an integral structure, may be detachably fixedly connected to each other, or may be fixedly connected to each other by adhesion. The columnar shaft part 31 is provided with worm gear teeth 310, the shaft part 31 provided with the worm gear teeth 310 is pivotally connected to the bottom plate 21 of the volute tongue 2 of the indoor unit, in an installed state, the blade part 30 is positioned above the bottom plate 21, the shaft part 31 is positioned below the bottom plate 21, and a certain space is formed below the bottom plate 21 for the driving rod 4 and the swinging blade 3 to move.

The driving rod 4 includes a plurality of worm segments 40 capable of matching with the worm gear teeth 310, and referring to fig. 3, the number of the swing vanes 3 in this embodiment is 8, so that 8 worm segments 40 are formed on the driving rod 4, and the position of each worm segment 40 on the driving rod 4 corresponds to the position of the swing vane 3 after installation. One end of the driving rod 4 is connected to a driving device, which in this embodiment is a micro motor 5, and an output shaft of the driving rod is directly connected to the driving rod 4 or connected to the driving rod by a transmission mechanism, such as a transmission gear or a belt, and the driving device is used for driving the driving rod 4 to rotate so as to drive the swing blade 3 to rotate relative to the fixed structure.

During operation, the micro motor 5 is started, the micro motor 5 drives the driving rod 4 to rotate, namely, the worm is driven to rotate, the worm drives the shaft part 31 which is matched with the worm gear structure to rotate, and further the swing blade 3 rotates, because the driving rod 4 cannot be limited by other parts or the structure of the driving rod in the rotating process, the driving rod 4 can rotate without limit, and the shaft part 31 of the swing blade 3 cannot be limited by the structure of the driving rod, therefore, 360-degree barrier-free rotation can be realized.

The utility model provides an air guide component for an air conditioner indoor unit, which utilizes a deformed worm and gear mechanism as a transmission mechanism for connecting a swing blade 3, compared with the prior art, the worm and gear transmission mechanism breaks through the limitation of the parallel four-bar linkage transmission mechanism on the swing angle of the swing blade 3, not only realizes 360-degree barrier-free rotation of the swing blade 3, but also avoids the phenomenon of air loss caused by the parallel four-bar linkage transmission mechanism occupying the air duct space, the utility model arranges a worm gear 310 on a shaft part 31 of the swing blade 3, integrates a plurality of worms matched with the worm gear 310 on the same thin rod to form a driving rod 4 of the utility model, greatly simplifies the structure of the transmission mechanism, reduces the size of the transmission mechanism, leads the structure of the air guide component of the utility model to be more compact, the transmission efficiency to be higher, the flexibility of the swing blade 3 to be stronger, thereby increasing the wind sweeping range of the air conditioner indoor unit, the problem that the comfort level is poor that the air conditioner directly blows and leads to can be effectively solved, user experience can be promoted by a wide margin.

Referring to fig. 6 and 7, the bottom plate 21 of the vortex tongue 2 is formed with mounting holes 210 whose number matches the number of the swing vanes 3, and the shaft portion 31 is pivotally connected to the mounting holes 210. Fig. 6 shows the left bottom plate 21 in fig. 1, fig. 7 shows the structure of one of the mounting holes 210, as shown in fig. 7, the mounting hole 210 is a countersunk hole, the inner wall surface 2101 of the mounting hole 210 protrudes inward to form a support table 2102, that is, the support table 2102 protrudes into the hole of the mounting hole 210, the support table 2102 may be an annular support table 2102 in which the inner wall surface 2101 protrudes inward, or a structure in which the annular support table 2102 is uniformly divided into a plurality of fan-shaped support tables 2102 as shown in the figure, and in any structure, the function of the structure is to limit the downward movement of the mounted shaft 31, that is, to limit the swinging vane 3. The support table 2102 has an inner diameter larger than that of the shaft 31, but forms only a small gap with the outer circumference of the shaft 31 to prevent the shaft 31 from wobbling in the mounting hole 210. With continued reference to fig. 7, the inner wall surface 2101 of the installation hole 210 is further protruded inward to form a plurality of cantilever claws 2103, and in this embodiment, the structure of two cantilever claws 2103 is shown, it can be understood that the number of cantilever claws 2103 may be 3, 4 or other numbers as long as it is ensured that the shaft portion 31 can be smoothly clamped by the cantilever claws 2103. Referring to fig. 5 and 8, one end of the shaft 31 of the flair 3 near the blade 30 extends outward to form a first limiting plate 311, the first limiting plate 311 has a disc structure, and the inner diameter of the support table 2102 is larger than the diameter of the shaft 31 and smaller than the diameter of the first limiting plate 311, so that the shaft 31 can smoothly rotate in the mounting hole 210 under the support of the support table 2102. Referring to fig. 8, in the mounted state, the first stopper disk 311 is positioned between the cantilever jaw 2103 and the support table 2102 to perform stopper by the support table 2102 and the cantilever jaw 2103.

Further, a second limiting disc 312 is further disposed above the first limiting disc 311, and in an installed state, a lower surface of the second limiting disc 312 abuts against the upper surface 2100 of the counter bore. Referring to fig. 8, the second limiting plate 312 is accommodated in the counterbore, the lower surface of the second limiting plate abuts against the upper surface 2100 of the counterbore, and the upper surface of the second limiting plate is flush with the upper surface of the bottom plate 21, so that the joint between the bottom plate 21 and the swing blade 3 has a neat appearance, the contact area between the shaft 31 and the mounting hole 210 can be increased, and the rotational stability of the swing blade 3 can be ensured.

Further, at least one vent hole 300 is formed in the blade portion 30, as shown in fig. 5, 4 oblong vent holes 300 are formed in the blade portion 30, the 4 oblong vent holes 300 are uniformly arranged at intervals, the oblong vent holes 300 are arranged obliquely with respect to a horizontal plane, further, the vent holes 300 can be arranged obliquely with respect to the surface of the blade portion 30, and the oblique angle can be determined according to tests, the obliquely arranged vent holes 300 can play a role of inducing wind, so that the outlet wind blows towards the surface of the bottom plate 21.

Further, the blade portions 30 can be arranged to be capable of being overlapped with each other, for example, the blade portions 30 are arranged in a rectangular structure, the shaft portion 31 is fixedly connected to the middle of the bottom end of the rectangular blade, the width of the blade enables the blade portions 30 to be overlapped with each other after rotating to a certain angle, the rectangular blade is similar to an active air inlet grille structure of an automobile, so that the blade portions 30 can block the air outlet 20 of the indoor unit after the swing blades 3 rotate to a set angle, in this way, in a shutdown state, the swing blades 3 block the air outlet 20 of the indoor unit after rotating, secondary protection of the air outlet 20 is realized, and impurities such as indoor dust are prevented from entering an air duct.

Referring to fig. 5, the worm gear 310 of the present embodiment is formed on the shaft 31, that is, the worm gear 310 is directly formed on the outer circumference of the shaft 31, which is simple in structure, easy to process, and easy to install.

Alternatively, the swing blade 3 further comprises a gear ring, the gear ring is sleeved on the shaft portion 31 and fixedly connected with the shaft portion 31, for example, the gear ring can be fastened by screws or bonded, the worm gear teeth 310 are formed on the gear ring, that is, the gear ring is formed as a worm wheel, and the worm is formed on the driving rod 4, and this design mode can realize maintenance of the swing blade 3 only by replacing the gear ring under the condition that the worm wheel is worn, which is beneficial to saving maintenance cost.

In addition, the motor 5 in the embodiment of the present invention can rotate in both directions.

Finally, on the basis of the above technical scheme, the utility model provides a machine in air conditioning further, refer to fig. 1 and fig. 2, this machine in air conditioning disposes aforementioned air guide component, no longer gives details here.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims (10)

1. An air guide assembly for an air conditioner indoor unit, the air guide assembly comprising:

a plurality of swinging blades comprising blade portions and a shaft portion pivotally connected to a fixed structure of the indoor unit, the shaft portion having worm gear teeth thereon;

a drive rod including a plurality of worm segments mateable with the worm gear teeth;

and the driving device is connected with the driving rod and is used for driving the driving rod to rotate so as to drive the swinging blade to rotate relative to the fixed structure.

2. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 1, wherein the fixing structure is a bottom plate of a scroll tongue of the indoor unit, the bottom plate is formed with a number of mounting holes matching the number of the swing vanes, and the shaft portion is pivotally connected to the mounting holes.

3. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 2, wherein one end of the shaft portion near the blade portion extends outward to form a first limiting disc, an inner wall surface of the mounting hole protrudes inward to form a supporting table, an inner diameter of the supporting table is larger than a diameter of the shaft portion and smaller than a diameter of the first limiting disc, the inner wall surface of the mounting hole further protrudes inward to form a plurality of cantilever claws, and in an installed state, the first limiting disc is located between the cantilever claws and the supporting table to limit the position of the supporting table and the cantilever claws.

4. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 3, wherein a second limiting disc is further disposed above the first limiting disc, the mounting hole is a counter-sunk hole, and in a mounted state, a lower surface of the second limiting disc abuts against an upper surface of the counter-sunk hole.

5. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 3, wherein the blade portion is detachably coupled to the shaft portion.

6. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 1, wherein at least one vent hole is formed at the blade portion.

7. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 6, wherein a plurality of oblong vent holes are formed on the blade portion.

8. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 1, wherein the blade portions are disposed to overlap each other so that the blade portions can block the outlet of the indoor unit after the swing blades are rotated by a set angle.

9. The air guide assembly for an indoor unit of an air conditioner as claimed in claim 1, wherein the worm gear teeth are formed on the shaft portion; or

The swinging blade comprises a gear ring, the gear ring is fixedly connected with the shaft part, and gear teeth of the worm gear are formed on the gear ring.

10. An indoor unit of an air conditioner, comprising the air guide assembly as set forth in any one of claims 1 to 9.

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