CN211551807U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an indoor unit of air conditioner, indoor unit of air conditioner includes: the shell is provided with an air outlet; the air deflector is rotatably arranged on the shell through a rotating shaft, the air deflector is provided with a first end and a second end opposite to the first end, the rotating shaft is positioned at the first end, the second end can rotate around the rotating shaft, and the rotating shaft is positioned at one side of the air outlet in the width direction; the rotation control device is arranged in the casing and is provided with a rotating arm, one end of the rotating arm can move outwards to extend out of the casing or move inwards to retract into the casing, one end of the rotating arm is connected with the second end of the air deflector, and when one end of the rotating arm extends outwards to extend out of the casing, the air deflector is driven to rotate around the rotating shaft. Through setting up the pivot in the first end of aviation baffle to the pivot is located the ascending one side of width direction of air outlet, and the swinging boom is connected with the second end of aviation baffle, can make the swinging boom drive the aviation baffle and steadily rotate from this, thereby can guarantee that the air-out is concentrated, has realized the smooth and easy nature of air-out, and the air supply distance can prolong.

Description

Indoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner manufacturing technology and specifically relates to an indoor unit of air conditioner.

Background

In the field of air conditioners, users have increasingly demanded greater comfort in the use of air conditioners, in which the control of the airflow of the air conditioner plays a very important role. Specifically, different users have completely different air flow control requirements on the air conditioner, and the same user has different requirements in different time periods, for example, the user wants to blow people, wants to not blow people, wants to blow strong wind, wants to blow light wind, wants to blow far distance wind, wants to blow all rooms, wants to blow wind completely to the ceiling, and wants to blow wind completely to the floor.

In the related art, a rotating shaft of a louver of an air conditioning indoor unit of a wall-mounted air conditioner is generally disposed at a middle position in a width direction of the louver. However, the gap between the air deflector and the casing of the arrangement mode is large, the appearance of the indoor unit of the air conditioner is not attractive enough, air blown out from the air outlet leaks from the gap between the air deflector and the casing to cause air outlet divergence and non-concentration, the problems that the air deflector is blocked to cause short air supply distance and cannot control the air speed exist, the adjustable angle of the air deflector is small, and the experience feeling of a user is reduced. In addition, in order to control the size of the air conditioner indoor unit, the air outlet channel is usually designed to be short, and the problems of air outlet divergence and non-concentration exist.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an indoor unit of air conditioner can effectively guarantee that the air-out is concentrated, has realized the smooth and easy nature of air-out, and the air supply distance can prolong.

According to the utility model discloses machine in air conditioning, include: a housing formed with an air outlet; the air deflector is rotatably arranged on the shell through a rotating shaft so as to open and close the air outlet, the air deflector is provided with a first end and a second end opposite to the first end, the rotating shaft is positioned at the first end, the second end can rotate around the rotating shaft, and the rotating shaft is positioned at one side of the air outlet in the width direction; the rotation control device is arranged in the casing and is provided with a rotating arm, one end of the rotating arm can move outwards to extend out of the casing or move inwards to retract into the casing, one end of the rotating arm is connected with the second end of the air deflector, and when one end of the rotating arm extends outwards out of the casing, the air deflector is driven to rotate around the rotating shaft.

According to the utility model discloses machine in air conditioning is through setting up the pivot in the first end of aviation baffle to be connected the one end of swinging boom and the second end of aviation baffle, from this, rotation control device's swinging boom can drive the aviation baffle and steadily rotate, thereby can effectively guarantee that the air-out is concentrated, has realized the smooth and easy nature of air-out, and the air supply distance can prolong.

According to some embodiments of the invention, the rotation control device comprises: a driver having an output shaft; a gear mated with the output shaft; the rotating arm is provided with a plurality of teeth meshed with the gear, and the driver drives the gear to rotate to drive one end of the rotating arm to move outwards to extend out of the shell.

According to some embodiments of the utility model, the rotation control device still includes the installing support, the installing support is fixed on the casing, the inside installation cavity that is formed with of installing support, the gear with the swinging boom is established in the installation cavity, be equipped with in the installation cavity the track of outside removal or inside removal of swinging boom.

According to some embodiments of the utility model, be equipped with on the casing and hold the slot part, it is located to hold the slot part the ascending outside of width direction of air outlet, wherein first end is located hold the slot part in, hold the edge of slot part be formed with the pivot hole on two ascending lateral walls of length direction of aviation baffle respectively, the pivot is two, two the pivot cooperates respectively two downthehole the pivot.

According to some embodiments of the utility model, be formed with the opening on the casing, work as the aviation baffle is located and closes when the closed position of air outlet the swinging boom is hidden in the casing, work as the aviation baffle is followed the closed position is to opening when the open position of air outlet rotates the swinging boom stretches out the opening.

According to some embodiments of the utility model, the swinging boom one end is equipped with clamping structure, the last centre gripping hole and the intercommunication mouth of being formed with of clamping structure, the second end of aviation baffle is equipped with the pivot, the pivot traversing the intercommunication mouth card is established in the centre gripping hole.

According to some embodiments of the utility model, the rotation control device is two, two the rotation control device is located respectively the left and right sides and the mirror symmetry of casing.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is an exploded view of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 3 is an enlarged view of portion A shown in FIG. 2;

fig. 4 is a schematic view of a partial structure of an indoor unit of an air conditioner when an air deflector is opened according to an embodiment of the present invention;

FIG. 5 is an enlarged view of portion B shown in FIG. 4;

FIG. 6 is an enlarged view of section C shown in FIG. 4;

FIG. 7 is an enlarged view of portion D shown in FIG. 4;

fig. 8 is an assembly view of an air deflection plate and two rotational control devices in accordance with an embodiment of the present invention;

fig. 9 is a schematic structural view of an air deflection plate according to an embodiment of the present invention;

fig. 10 is a perspective view of a left-side rotation control device according to an embodiment of the present invention;

FIG. 11 is another angular perspective view of the left-hand rotational control apparatus shown in FIG. 10;

FIG. 12 is a schematic view of the left-hand rotary control device of FIG. 10 with the mounting bracket removed;

FIG. 13 is a schematic view of the left-hand rotary control device of FIG. 10 shown at an alternate angle with the mounting bracket removed;

fig. 14 is an exploded view of the left-hand rotation control device shown in fig. 10;

FIG. 15 is an exploded view of another angle of the left hand side rotating control device shown in FIG. 10;

fig. 16 is a schematic view of a rotation control apparatus according to an embodiment of the present invention with the rotating arm extended out of the mounting cavity;

FIG. 17 is a schematic view of another angle of the rotation control apparatus shown in FIG. 16 with the rotating arm extended out of the mounting cavity;

fig. 18 is a perspective view of a right-side rotation control device according to an embodiment of the present invention;

FIG. 19 is a perspective view of another angle of the right side rotational control apparatus shown in FIG. 18;

FIG. 20 is an enlarged view of section E circled in FIG. 19;

fig. 21 is a perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention when an air outlet is opened by an air deflector;

fig. 22 is a force analysis diagram of the air deflector according to the embodiment of the present invention when the air outlet is closed.

Reference numerals:

an indoor air-conditioning unit 100;

a housing 10; an air outlet 11; an accommodation groove portion 12; a rotating shaft hole 121; an opening 13;

an air deflector 20; a rotating shaft 21; a first end 22; a second end 23; a pivot 231;

a rotation control device 30; a rotating arm 31; the teeth 311; a clamping structure 312; a clamping hole 3121; a communication port 3122;

a driver 32; an output shaft 321;

a gear 33; a mounting bracket 34; the mounting chamber 341; the rails 3411;

a heat exchanger 40; a wind wheel 50; an air duct cavity member 60; an electric control part 70; and a longitudinal wind guiding blade 80.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An air conditioning indoor unit 100 according to an embodiment of the present invention will be described with reference to fig. 1 to 22, and the air conditioning indoor unit 100 may be applied to an air conditioner such as a wall-mounted indoor air conditioner. In the following description of the present application, an example in which the indoor unit 100 of an air conditioner is applied to a wall-mounted air conditioner will be described.

As shown in fig. 1 to 22, an air conditioning indoor unit 100 according to an embodiment of the present invention includes a casing 10, an air deflector 20, and a rotation control device 30.

Specifically, referring to fig. 1 to 21, the casing 10 is formed with an air outlet 11, the air deflector 20 is rotatably disposed on the casing 10 through a rotating shaft 21 to open and close the air outlet 11, the air deflector 20 has a first end 22 and a second end 23 opposite to the first end 22, the rotating shaft 21 is located at the first end 22, the second end 23 is rotatable around the rotating shaft 21, and the rotating shaft 21 is located at one side of the air outlet 11 in the width direction; the rotation control device 30 is disposed in the casing 10, the rotation control device 30 has a rotating arm 31, one end of the rotating arm 31 can move outward to extend out of the casing 10 or move inward to retract into the casing 10, one end of the rotating arm 31 is connected to the second end 23 of the air deflector 20, and when one end of the rotating arm 31 extends outward from the casing 10, the rotating arm drives the air deflector 20 to rotate around the rotating shaft 21.

The cabinet 10 serves to protect various components such as the heat exchanger 40, the wind wheel 50, the air duct chamber part 60, the electric control part 70, etc. disposed therein. An air outlet 11 is formed at the lower portion of the casing 10. When the air conditioning indoor unit 100 is applied to a wall-mounted air conditioner, the wall-mounted air conditioner may have only a cooling function, or may have both a cooling function and a heating function, and the wall-mounted air conditioner is a cooling/heating function. When the wall-mounted air conditioner is operated, cold air or hot air can be discharged from the outlet 11 to adjust the indoor temperature.

As shown in fig. 7 to 8, the rotating shaft 21 is located on one side in the width direction of the air outlet 11. The rotating shaft 211 may be disposed at the outermost edge of the air guiding plate 20, and the rotating shaft 21 may avoid the position of the air outlet 11. The indoor unit 100 of the air conditioner operates to open the outlet 11 through the air guide plate 20, and cool air or warm air may be delivered to the room through the outlet 11. During the operation of the indoor unit 100, the opening angle of the air deflector 20 may be controlled to control the air outlet angle of the indoor unit 100. After cooling or heating is finished, the air guide plate 20 may close the air outlet 11 to prevent external dust and the like from entering the cabinet 10.

The rotation control device may be installed in the casing 10 of the indoor unit 100, for example, a wall-mounted indoor unit 100, and one end of the rotating arm 31 is connected to the air guide plate 20. The rotating arm 31 can drive the air guiding plate 20 to rotate, when one end of the rotating arm 31 extends out of the casing 10, the air guiding plate 20 can rotate and gradually open the air outlet 11, and when the rotating arm 31 completely retracts into the casing 10, the air guiding plate 20 can close the air outlet 11. Because the structure of the rotation control device 30 is stable and reliable, the air deflector 20 (especially, the air deflector 20 with a large volume and a heavy weight) can be driven to rotate more stably, so that the air outlet effect of the indoor unit 100 of the air conditioner, such as the wall-mounted indoor unit 100 of the air conditioner, can be effectively ensured, and the smoothness of air outlet can be realized.

According to the utility model discloses indoor unit of air conditioner 100 is through arranging pivot 21 in the first end 22 department of aviation baffle 20 to make pivot 21 be located one side (for example, the downside in fig. 4) on the width direction of air outlet 11, the clearance between aviation baffle 20 and the casing 10 can set up to be less, so can effectively guarantee that the air-out is concentrated, has realized the smooth and easy nature of air-out, and the air supply distance can prolong. When the rotation control device 30 is applied to the air conditioning indoor unit 100, the rotating arm 31 of the rotation control device 30 is connected to the second end 23 of the air deflector 20, so that the air deflector 20 (especially, the air deflector 20 with a large volume and a heavy weight) can be driven to rotate smoothly, the required driving force is small, and the appearance of the whole air conditioning indoor unit 100 is more attractive.

According to some embodiments of the present invention, in conjunction with fig. 4 and 10-21, the rotation control device 30 further comprises a driver 32, a gear 33, and a plurality of teeth 311 on the rotating arm 31 that engage with the gear 33. The driver 32 has an output shaft 321, the gear 33 being engaged with the output shaft 321; the rotating arm 31 has a plurality of teeth 311 engaged with the gear 33, and the driver 32 drives the gear 33 to rotate to drive one end of the rotating arm 31 to move outwards to extend out of the housing 10. When the driver 32 works, the output shaft 321 of the driver 32 drives the gear 33 to rotate around its central axis, and the gear 33 rotates to drive the rotating arm 31 disposed at one end (e.g., the lower end in fig. 4) of the air deflector 20 to move toward the outside of the housing 10 by the cooperation of the gear 33 and the plurality of teeth 311 on the rotating arm 31, so as to drive the air deflector 20 to rotate, so that the rotation control device 30 can drive the air deflector 20 to open and close the air outlet 11.

Further, referring to fig. 8 and fig. 10-20, the rotation control device 30 further includes a mounting bracket 34, the mounting bracket 34 is fixed on the housing 10, a mounting cavity 341 is formed inside the mounting bracket 34, the gear 33 and the rotating arm 31 are disposed in the mounting cavity 341, and a track 3411 for outward movement or inward movement of the rotating arm 31 is disposed inside the mounting cavity 341. The rail 3411 may facilitate the rotating arm 31 to move inward or outward smoothly, so that the rotating arm 31 drives the air deflector 20 to rotate smoothly. The mounting bracket 34 has a bracket body and a bracket cover that can be mounted to the bracket body by a plurality of fasteners, such as screws or the like. A holder main body (e.g., a right end of the rotating arm of fig. 15) and a holder cover (e.g., a left end of the rotating arm of fig. 15) are respectively provided on left and right sides in the width direction of the rotating arm 31, and together define a mounting chamber 341. The driver 32 is arranged on one side of the bracket main body far away from the bracket cover, and the output shaft 321 extends into the mounting cavity 341 and is matched with the gear 33 to drive the gear 33 to rotate. The installation cavity 341 can include first cavity and second cavity, and the gear 33 is installed respectively with the swinging boom 31 and is spacing in first cavity and the second cavity, so set up, when guaranteeing the structural stability of rotation control device 30, made things convenient for the installation of gear 33 and swinging boom 31, can improve assembly efficiency.

According to some embodiments of the present invention, with reference to fig. 12-14, the bracket cover is formed with a mating hole, the gear 33 may be provided with a gear shaft, the gear shaft extends toward the direction of the bracket cover, and a side surface of the protruding gear 33 facing the bracket cover, the output shaft 321 cooperates with the gear shaft, and the gear shaft cooperates in the mating hole. For example, in the example of fig. 12 to 14, the fitting hole may penetrate the bracket cover in the thickness direction thereof, the gear shaft is provided at the center of the gear 33, and the gear shaft extends leftward beyond the left surface of the gear 33 to be fitted with the fitting hole. So set up, the distance between the right surface of support lid and the left surface of gear 33 is nearer to can carry out certain spacing to the axial motion of gear 33, and then guarantee rotary control device 30's stable in structure reliably effectively. The gear shaft may be formed with a mounting hole to be engaged with the output shaft 321, and a free end of the output shaft 321 passes through the bracket body to be engaged with the mounting hole, so that the output shaft 321 may drive the gear 33 to rotate synchronously when rotating.

Alternatively, as shown in fig. 14 to 17, the rotating arm 31 is formed in an arc-shaped structure protruding toward the gear 33. Therefore, the rotating arm 31 can drive the air deflector 20 to rotate better, and the rotating arm 31 is simple in structure and convenient to process.

According to some embodiments of the present invention, referring to fig. 14 and 16, a cavity opened at a side surface facing the driver 32 is formed on the rotating arm 31, and the cavity extends along a length direction of the rotating arm 31. The cavity thus provided can reduce the weight of the rotating arm 31, and thus can reduce the required driving force.

As shown in fig. 13 to 14, two first ribs may be provided on a surface of the rotating arm 31 facing the holder main body, and the two first ribs are respectively located on both sides of the cavity in the width direction. Like this, the swinging boom 31 can be through two first ribs and support main part contact, because the area of contact between first rib and the support main part is less, can reduce the swinging boom 31 during the motion and the support main part between the frictional force to can further reduce the required drive power of driver 32. Two second ribs may be disposed on a surface of one side of the rotating arm 31 facing the bracket cover, and the two second ribs are respectively located on two sides of the rotating arm 31 in the width direction. So set up, can effectively reduce the frictional force between the rotating arm 31 during motion and the support lid to can further reduce the required drive power of driver 32, and then can improve rotation control device 30 motion stability.

According to some embodiments of the utility model, be equipped with on the casing 10 and hold slot portion 12, hold slot portion 12 and be located the ascending outside of width direction of air outlet 11, wherein first end 22 is located and holds slot portion 12, holds slot portion 12 and is formed with pivot hole 121 respectively on two ascending lateral walls of length direction along aviation baffle 20, and pivot 21 is two, and two pivot 21 cooperate respectively in two pivot holes 121. Note that the "outer side" may be understood as a side away from the longitudinal center axis of the outlet port 11 extending in the left-right direction. For example, in the example of fig. 3, the accommodating groove portion 12 may be formed by a portion of the wall surface of the casing 10 at the position corresponding to the air outlet 11 being recessed rearward, two rotation shaft holes 121 are formed on the left and right side walls of the accommodating groove portion 12, respectively, two rotation shafts 21 are provided at the first end 22 of the air deflector 20, respectively, and the two rotation shafts 21 are located at the ends of both ends of the air deflector 20 in the left-right direction, respectively, and the two rotation shafts 21 are fitted in the two rotation shaft holes 121, respectively, and are rotatable within the rotation shaft holes 121. From this, through set up the slot part 12 that holds that is located outside the air outlet 11 and communicates with the air outlet 11 on casing 10, and arrange the first end 22 of aviation baffle 20 in holding the slot part 12, and make the pivot 21 cooperation in holding the pivot hole 121 of slot part 12, aviation baffle 20 is rotatory in-process to the air outlet 11 nothing shelters from, has effectively realized the smooth and easy nature of air-out, aviation baffle 20 can dodge air outlet 11, thereby can further guarantee that aviation baffle 20 does not shelter from air outlet 11, effectively prolonged the air supply distance. Moreover, the first end 22 of the air deflector 20 can be fitted and extended with the lower edge curve of the air duct cavity component 60, so that air outlet is not obstructed, and the smoothness of air outlet is further improved. Further, the size of the plurality of longitudinal air guiding blades 80 arranged in the air outlet 11 and used for controlling the left-right wind swinging can be designed to be large, for example, the area of each longitudinal air guiding blade 80 can be more than 2 times of that of the traditional longitudinal air guiding blade, so that the left-right wind guiding effect can be obviously improved, and the efficient and accurate control of the left-right wind swinging is realized. In the description of the present invention, "a plurality" means two or more.

According to some embodiments of the present invention, an opening 13 is formed on the housing 10, the rotating arm 31 is hidden in the housing 10 when the air deflector 20 is located at the closing position for closing the air outlet 11, and the rotating arm 31 extends out of the opening 13 when the air deflector 20 rotates from the closing position to the opening position for opening the air outlet 11. With such an arrangement, when the air deflector 20 is located at the closed position, the rotation control device 30 is entirely hidden in the casing 10, so that the overall appearance of the indoor unit 100 of the air conditioner is more attractive, and when the air deflector 20 moves from the closed position to the open position, the rotating arm 31 extends out of the opening 13 to drive the air deflector 20 to rotate. A certain gap may be left between the rotation control device 30 and the peripheral wall of the opening 13, so as to prevent the rotation control device 30 from being worn during rotation.

Further, one end of the rotating arm 31 is provided with a holding structure 312, the holding structure 312 is formed with a holding hole 3121 and a communication opening 3122, the second end 23 of the air guiding plate 20 is provided with a pivot 231, and the pivot 231 transversely passes through the communication opening 3122 and is clamped in the holding hole 3121. For example, in the example of fig. 10-20, the clamping structure 312 may be a generally C-shaped structure, and the pivot 231 of the wind deflector 20 may traverse the communication opening 3122 and fit within the clamping hole 3121 when assembled to drive the wind deflector 20 to rotate when the rotating arm 31 moves. Alternatively, the width of the communication port 3122 is gradually reduced from the outside to the inside to guide the installation of the pivot shaft 231. Here, it should be noted that the direction "outer" is understood to be a direction away from the center of the holding hole 3121, and the opposite direction is defined as "inner".

Alternatively, the gear 33 and the rotating arm 31 are both injection molded parts. The injection molding process has the characteristics of high production speed and high efficiency, and the gear 33 and the rotating arm 31 which are subjected to injection molding are stable and reliable in structure. For example, the gear 33 and the rotating arm 31 may be injection molded by POM (polyoxymethylene, thermoplastic crystalline polymer, known as "super steel" or "mild steel", also known as polyoxymethylene) material, so as to increase the rigidity of the gear 33 and the rotating arm 31, and simultaneously make them have self-lubricating property, reduce the wear of the gear 33 and the rotating arm 31 during the movement, and improve the service life. But is not limited thereto.

According to some embodiments of the present invention, referring to fig. 4, 8 and 21, the number of the rotation control devices 30 may be two, and the two rotation control devices 30 are respectively located at the left and right sides of the housing 10 and are mirror-symmetrical. The two rotation control devices 30 are respectively located at two ends of the air deflector 20, so that the stability of the air deflector 20 in the movement process can be ensured. As shown in the figure, when the air deflector 20 is fully opened, the air deflector 20 is balanced by the pulling force F1 of the rotating arm 31, the supporting force F2 of the rotating shaft 21 and the self gravity F3. When the air deflector 20 is closed, the air deflector 20 is locked by the pulling force of the rotating arm 31, and the shell 10 provides a fulcrum, so that the locking force directly acts on the central position of the air deflector 20, and therefore, the required torsion of the motor is smaller. Therefore, a stepping motor with small diameter and small torsion can be adopted, so that the appearance gap when the air deflector 20 is completely closed is small, and the structure is stable.

Other configurations and operations of the air conditioning indoor unit 100 according to the embodiment of the present invention, for example, the wall-mounted air conditioning indoor unit 100, are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. An indoor unit of an air conditioner, comprising:

a housing formed with an air outlet;

the air deflector is rotatably arranged on the shell through a rotating shaft so as to open and close the air outlet, the air deflector is provided with a first end and a second end opposite to the first end, the rotating shaft is positioned at the first end, the second end can rotate around the rotating shaft, and the rotating shaft is positioned at one side of the air outlet in the width direction;

the rotation control device is arranged in the casing and is provided with a rotating arm, one end of the rotating arm can move outwards to extend out of the casing or move inwards to retract into the casing, one end of the rotating arm is connected with the second end of the air deflector, and when one end of the rotating arm extends outwards out of the casing, the air deflector is driven to rotate around the rotating shaft.

2. An indoor unit of an air conditioner according to claim 1, wherein the rotation control means includes:

a driver having an output shaft;

a gear mated with the output shaft;

the rotating arm is provided with a plurality of teeth meshed with the gear, and the driver drives the gear to rotate to drive one end of the rotating arm to move outwards to extend out of the shell.

3. An indoor unit of an air conditioner as claimed in claim 2, wherein the rotation control device further comprises a mounting bracket fixed to the casing, a mounting cavity is formed inside the mounting bracket, the gear and the rotating arm are disposed in the mounting cavity, and a track for outward movement or inward movement of the rotating arm is disposed in the mounting cavity.

4. An indoor unit of an air conditioner according to claim 1, wherein a receiving groove portion is provided in the casing, the receiving groove portion being located outside the outlet in the width direction, wherein the first end is located in the receiving groove portion, and wherein a rotating shaft hole is formed in each of two side walls of the receiving groove portion in the length direction of the air deflector,

the number of the rotating shafts is two, and the two rotating shafts are respectively matched in the two rotating shaft holes.

5. An indoor unit of an air conditioner according to claim 1, wherein the cabinet is formed with an opening,

when the air deflector is located at a closing position for closing the air outlet, the rotating arm is hidden in the shell, and when the air deflector rotates from the closing position to an opening position for opening the air outlet, the rotating arm extends out of the opening.

6. An indoor unit of an air conditioner as claimed in claim 1, wherein the one end of the rotating arm is provided with a clamping structure, the clamping structure is provided with a clamping hole and a communication port, the second end of the air deflector is provided with a pivot, and the pivot transversely passes through the communication port and is clamped in the clamping hole.

7. An indoor unit of an air conditioner according to claim 1, wherein the number of the rotation control devices is two, and the two rotation control devices are respectively located at both ends of the left and right sides of the casing and are mirror-symmetrical.

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