Swing blade driving assembly and air conditioner indoor unit with same

Abstract

The utility model provides a swing blade driving assembly and an air conditioner indoor unit with the swing blade driving assembly. The swing blade driving assembly comprises a motor, a motor box and a connecting crank. The motor box is used for installing a motor and comprises a front plate, a through hole is formed in the front plate, and the front surface of the front plate protrudes forwards to form a first protruding part. An output shaft of the motor extends forward through the through hole. The connecting crank comprises a rotating shaft extending in the front-back direction, the rotating shaft is fixedly connected to an output shaft of the motor, the rear end of the rotating shaft is arranged on the front side of the first protruding part, and the projection of the front end face of the first protruding part on the plane where the rear surface of the rotating shaft is located is located in the rear surface of the rotating shaft. The contact area of the connecting crank and the motor box is reduced through the first protruding part formed on the motor box, then the friction force between the connecting crank and the motor box is reduced, energy needed by the motor for driving the connecting crank to rotate is reduced, noise generated when the connecting crank rotates is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning equipment, and in particular to a swing blade drive assembly and an indoor unit of an air conditioner having the same. Background Technology

[0002] In the indoor unit of an air conditioner, the louvers regulate the direction of airflow. The rotation of the louvers is typically achieved by the rotation of the motor's output shaft, which drives a connecting crank connected to the louvers. The connecting crank is usually positioned at intervals or in contact with the motor housing on one side. During the rotation of the connecting crank, the contact area between the crank and the motor housing may become too large, resulting in significant friction. This not only causes energy loss but also generates considerable noise during crank rotation, reducing the user experience. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide a swing blade drive assembly and an air conditioner indoor unit having the above problems to overcome or at least partially solve the above problems. It can reduce the friction between the connecting crank and the motor box, reduce energy loss, and reduce the noise generated when the connecting crank rotates, thereby improving the user experience.

[0004] Specifically, this utility model provides a louver drive assembly, comprising:

[0005] Electric motor.

[0006] A motor housing for mounting a motor, the motor housing including a front panel with a through hole, and a first protrusion formed by the forward protrusion of the front surface of the front panel. The output shaft of the motor extends forward through the through hole.

[0007] A connecting crank, the connecting crank including a rotating shaft extending in a front-rear direction, the rotating shaft being fixedly connected to the output shaft of the motor, and the rear end of the rotating shaft being disposed on the front side of the first protrusion.

[0008] Optionally, a mounting plate is formed at the rear end of the rotating shaft, and the mounting plate is arranged perpendicular to the front-rear direction. The rear end of the mounting plate contacts the front end of the first protrusion.

[0009] The motor box also includes a first baffle, which is fixedly connected to the front side of the front plate and located on the front side of the mounting plate. The projection of the front end face of the first protrusion on the plane where the rear surface of the shaft is located is within the rear surface of the shaft.

[0010] Optionally, the first baffle and the front plate are connected by a second baffle extending in the front-rear direction.

[0011] The mounting plate is a circular plate, and a positioning plate extending radially outward along the mounting plate is connected to the mounting plate. The second baffle is configured to stop in the rotation path of the positioning plate to limit the rotation angle of the positioning plate.

[0012] Optionally, the front panel is provided with a molding hole, and the projection of the first baffle on the front panel is within the projection of the molding hole on the front panel.

[0013] Optionally, the projection of the first protrusion on the front plate is arc-shaped, the arc-shaped opening faces the molding hole, and is coaxial with the output shaft of the motor.

[0014] Optionally, the first baffle and the mounting plate are spaced apart, and the distance between them is less than the minimum radius of the mounting plate. Alternatively,

[0015] The rear end of the first baffle forms a rearwardly protruding second protrusion, and the rear end of the second protrusion is in contact with the mounting plate.

[0016] Optionally, the cross-sectional profile of the first protrusion is a trapezoid with the smaller end facing forward. Or,

[0017] The cross-sectional profile of the first protrusion is a triangle with the smaller end pointing forward. Or,

[0018] The cross-sectional profile of the first protrusion is an arc with a central angle less than or equal to 180°.

[0019] Optionally, a lubricant is applied between the first protrusion and the mounting plate.

[0020] This utility model also provides an indoor unit for an air conditioner, comprising:

[0021] Air outlet frame.

[0022] The aforementioned blade drive assembly is fixedly connected to the air outlet frame.

[0023] A swivel blade is rotatably connected within the air outlet frame. The output shaft of the motor is connected to the swivel blade via a transmission mechanism to drive the swivel blade to rotate.

[0024] Optionally, the motor housing protrudes downward to form a connecting post.

[0025] The air outlet frame is located on the lower side of the motor box. A connecting groove is formed on the air outlet frame to fit and insert into the connecting post.

[0026] In the oscillating blade drive assembly of this utility model, the first protrusion formed on the motor housing reduces the contact area between the connecting crank and the motor housing, thereby reducing the friction between the connecting crank and the motor housing. This not only reduces the energy required for the motor to drive the connecting crank to rotate, but also reduces the noise generated when the connecting crank rotates, thus improving the user experience.

[0027] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0028] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0029] Figure 1 This is a schematic front view of a louver drive assembly according to an embodiment of the present invention;

[0030] Figure 2 yes Figure 1 A schematic cross-sectional view at point AA in the middle;

[0031] Figure 3 yes Figure 2 Enlarged view of point B in the middle;

[0032] Figure 4 This is a schematic front view of the motor box in a swashplate drive assembly according to an embodiment of the present invention;

[0033] Figure 5 This is a schematic structural diagram of a louver drive assembly according to an embodiment of the present invention.

[0034] List of reference numerals in the attached diagram:

[0035] 100, Motor box; 110, Front panel; 120, Through hole; 130, First protrusion; 140, First baffle; 150, Second baffle; 160, Forming hole; 170, Connecting post;

[0036] 200. Connecting crank; 210. Shaft; 211. Mounting plate; 212. Positioning plate; 220. First connecting rod; 230. Second connecting rod;

[0037] 300. Electric motor. Detailed Implementation

[0038] The following reference Figures 1 to 5This invention describes a louver drive assembly and an indoor unit of an air conditioner having the same, according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0039] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Figure 1This is a schematic front view of a louver drive assembly according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 5 This utility model embodiment provides a pendulum drive assembly. The pendulum drive assembly includes a motor 300, a motor housing 100, and a connecting crank 200.

[0043] The motor housing 100 is used to mount the motor 300, and the motor housing 100 includes a front plate 110, on which a through hole 120 is provided, and the front surface of the front plate 110 protrudes forward to form a first protrusion 130. The output shaft of the motor 300 extends forward through the through hole 120.

[0044] The connecting crank 200 includes a rotating shaft 210 extending in the front-rear direction. The rotating shaft 210 is fixedly connected to the output shaft of the motor 300, and the rear end of the rotating shaft 210 is located on the front side of the first protrusion 130. The projection of the front end surface of the first protrusion 130 onto the plane where the rear surface of the rotating shaft 210 is located is within the rear surface of the rotating shaft 210.

[0045] In this embodiment, when the motor 300 is working, the output shaft of the motor 300 rotates, which drives the rotating shaft 210 to rotate, thereby causing the connecting crank 200 to rotate synchronously, so that the pendulum connected to the connecting crank 200 can rotate or move.

[0046] With a certain gap between the connecting crank 200 and the first protrusion 130, when the oscillating blade drive assembly is working, the connecting crank 200 rotates. Since the front surface of the front plate 110 is provided with the first protrusion 130, even when the connecting crank 200 is tilted, it can reduce the contact area between the connecting crank 200 and the motor housing 100, thereby reducing the friction between the connecting crank 200 and the motor housing 100. This not only reduces the energy required for the motor 300 to drive the connecting crank 200 to rotate, but also reduces the noise generated when the connecting crank 200 rotates, improving the user experience.

[0047] Alternatively, when the connecting crank 200 contacts the first protrusion 130, since the front surface of the front plate 110 is provided with the first protrusion 130, the connecting crank 200 only contacts the first protrusion 130 formed on the front plate 110 of the motor housing 100. This reduces the shaking of the connecting crank 200 and improves its stability, while also reducing the contact area between the connecting crank 200 and the motor housing 100. Consequently, the friction between the connecting crank 200 and the motor housing 100 is reduced, which not only reduces the energy required for the motor 300 to drive the connecting crank 200 to rotate, but also reduces the noise generated when the connecting crank 200 rotates, thus improving the user experience.

[0048] In some embodiments of the blade drive assembly of this utility model, such as Figure 2 and Figure 3 As shown, a mounting plate 211 is formed at the rear end of the rotating shaft 210, and the mounting plate 211 is arranged perpendicular to the front-rear direction. The rear end of the mounting plate 211 contacts the front end of the first protrusion 130.

[0049] The motor box 100 also includes a first baffle 140, which is fixedly connected to the front side of the front plate 110 and located on the front side of the mounting plate 211.

[0050] In this embodiment, the rear end of the rotating shaft 210 extends outward to form a mounting plate 211 perpendicular to the front-rear direction, and the projection of the front end face of the first protrusion 130 onto the plane of the rear surface of the mounting plate 211 is within the rear surface of the mounting plate 211. The rear end contacts the front end of the first protrusion 130, further enhancing the stability and reliability of the connection between the crank 200 and the motor housing 100. The first baffle 140 stops at the front side of the mounting plate 211, and the motor housing 100 stops at the rear side of the mounting plate 211, further restricting the movement of the first baffle 140, thereby restricting the front-rear movement of the connecting crank 200 and improving the connection stability between the connecting crank 200 and the motor housing 100.

[0051] When installing the connecting crank 200, the mounting plate 211 can be placed between the first baffle 140 and the front plate 110, and then the output shaft of the motor 300 can be connected to the rotating shaft 210 through the through hole 120 to fix the connecting crank 200.

[0052] In some embodiments of the blade drive assembly of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the first baffle 140 and the front plate 110 are connected by a second baffle 150 extending in the front-rear direction.

[0053] Mounting plate 211 is a circular plate, and a positioning plate 212 extending radially outward along mounting plate 211 is connected to mounting plate 211. Second baffle 150 is configured to stop in the rotation path of positioning plate 212 to limit the rotation angle of positioning plate 212.

[0054] In this embodiment, when the motor 300 is working, the output shaft of the motor 300 drives the rotating shaft 210 to rotate. During the rotation of the rotating shaft 210, the positioning plate 212 also rotates synchronously. The second baffle 150 stops the rotating shaft 212 in the rotation path to prevent the rotating shaft 210 from rotating too much, ensuring that the rotating shaft 210 operates within a preset working range. This, in turn, ensures that the rotation range of the oscillating blade is within the preset range, preventing the wire from being torn due to excessive rotation of the rotating shaft 210.

[0055] In some embodiments of the swing blade drive assembly of this utility model, the front plate 110 is provided with a forming hole 160, and the projection of the first baffle 140 on the front plate 110 is within the projection of the forming hole 160 on the front plate 110, so as to facilitate the forming and demolding of the first baffle 140, reduce the manufacturing difficulty of the motor box 100, and thus reduce the production cost of the motor box 100.

[0056] In some embodiments of the blade drive assembly of this utility model, such as Figure 4 As shown, the projection of the first protrusion 130 on the front plate 110 is arc-shaped, the arc-shaped opening faces the forming hole 160, and is coaxial with the output shaft of the motor 300.

[0057] In this embodiment, since the arc-shaped first protrusion 130 is coaxial with the output shaft of the motor 300, when the motor 300 operates and drives the output shaft to rotate, the forces in all directions on the shaft 210 can be evenly borne by the first protrusion 130, thus avoiding the problem of deformation or increased wear of the shaft 210 due to uneven support.

[0058] Moreover, the arc-shaped opening is set towards the forming hole 160, so that the forming hole 160 can coincide with the circular part where the first protrusion 130 is located, thereby making the structure on the motor box 100 more compact, making the structure of the motor box 100 more compact, reducing the space occupied by the motor box 100, and thus expanding the application scenarios of the motor box 100.

[0059] In some embodiments of the oscillating blade drive assembly of this utility model, the first baffle 140 and the mounting plate 211 are spaced apart, and the distance between them is less than the minimum radius of the mounting plate 211.

[0060] In this embodiment, the first baffle 140 and the mounting plate 211 are spaced apart. While avoiding friction between the first baffle 140 and the mounting plate 211, the distance between them is less than the minimum radius of the mounting plate 211. When the mounting plate 211 tends to shift back and forth during rotation, the first baffle 140 can block and correct it in time based on its relative position to the mounting plate 211. This ensures that the rotation of the mounting plate 211 is always kept within the preset range, so that the first baffle 140 can still effectively limit the mounting plate 211, further enhancing the stability and reliability of the swing blade drive assembly.

[0061] In some embodiments of the blade drive assembly of this utility model, the rear end of the first baffle 140 forms a rearwardly protruding second protrusion, and the rear end of the second protrusion is in contact with the mounting plate 211.

[0062] In this embodiment, the contact arrangement between the second protrusion and the mounting plate 211 further enhances the supporting and positioning effect of the first baffle 140 on the mounting plate 211. Compared with planar contact, the contact method of the protrusion reduces the friction between the first baffle 140 and the mounting plate 211, improving the smoothness of the movement of the oscillating vane drive assembly, while also reducing noise and vibration caused by excessive friction, thus improving the user experience.

[0063] In some embodiments of the blade drive assembly of this utility model, the projection of the first protrusion 130 on the front plate 110 is circular and coaxial with the output shaft of the motor 300.

[0064] In this embodiment, since the circular first protrusion 130 is coaxial with the output shaft of the motor 300, when the motor 300 operates and drives the output shaft to rotate, the forces in all directions on the shaft 210 can be evenly borne by the first protrusion 130, thus avoiding the problem of deformation or increased wear of the shaft 210 due to uneven support.

[0065] Furthermore, by reducing the contact area between the mounting plate 211 and the first protrusion 130 when the connecting crank 200 rotates, the amount of lubricant consumed is reduced, thereby lowering the operating cost. It also avoids situations where the stability of the connecting crank 200 is poor due to changes in the contact surface between the connecting crank 200 and the mounting plate 211.

[0066] In some embodiments of the blade drive assembly of this utility model, the cross-sectional profile of the first protrusion 130 is a trapezoid with the smaller end facing forward.

[0067] In this embodiment, the trapezoidal cross-section design makes the first protrusion 130 and the mounting plate 211 in surface contact, which reduces the pressure exerted on the mounting plate 211 by the first protrusion 130, thereby reducing the likelihood of the mounting plate 211 being scratched and worn, and improving the service life of the connecting crank 200.

[0068] In some embodiments of the blade drive assembly of this utility model, the cross-sectional profile of the first protrusion 130 is a triangle with the small end facing forward.

[0069] In this embodiment, the first protrusion 130, which has a triangular cross-section with the small end facing forward, contacts the rear end of the mounting plate 211, reducing the contact area between the mounting plate 211 and the first protrusion 130. This further reduces the friction between the crank 200 and the motor housing 100, thereby reducing the noise generated during the operation of the swing blade.

[0070] In some embodiments of the blade drive assembly of this utility model, the cross-sectional profile of the first protrusion 130 is an arc with a central angle less than or equal to 180°.

[0071] In this embodiment, the arc-shaped front end design provides a smoother surface for the contact between the crank 200 shaft 210 and the first protrusion 130, reducing friction and jamming caused by uneven contact, thereby improving the stability of the movement of the oscillating blade drive assembly.

[0072] Furthermore, the arc-shaped front end contacts the mounting plate 211, reducing the contact area between the mounting plate 211 and the first protrusion 130, further reducing the friction between the connecting crank 200 and the motor box 100, thereby reducing the noise generated during the operation of the swing blade.

[0073] In some embodiments of the blade drive assembly of this utility model, such as Figure 1 and Figure 2 As shown, the connecting crank 200 also includes a first connecting rod 220 and a second connecting rod 230. The first connecting rod 220 is arranged parallel to the rotating shaft 210 and is located on the front side of the rotating shaft 210. The second connecting rod 230 connects the first connecting rod 220 and the rotating shaft 210, with the first connecting rod 220 and the rotating shaft 210 located on the front and rear sides of the second connecting rod 230, respectively.

[0074] In this embodiment, the first connecting rod 220 is arranged parallel to the rotating shaft 210 and located in front of the rotating shaft 210. When the motor 300 drives the rotating shaft 210 to rotate by using the output shaft of the motor 300 to drive the connecting crank 200 to move, the first connecting rod 220 can effectively transmit power to the pendulum. This structural design can adjust the length, shape, etc. of the first connecting rod 220 and the second connecting rod 230 according to different application scenarios and needs to adapt to the requirements of the pendulum connection position in various scenarios, thereby improving the application range of the pendulum drive assembly.

[0075] In some embodiments of the oscillating blade drive assembly of this utility model, a lubricant is applied between the first protrusion 130 and the mounting plate 211 to further reduce the friction between the first protrusion 130 and the mounting plate 211.

[0076] Furthermore, in some embodiments of the oscillating blade drive assembly of this invention, the lubricant may be a lubricating oil such as palm grease or mineral oil.

[0077] This utility model embodiment also provides an indoor unit for an air conditioner. The indoor unit for the air conditioner includes an air outlet frame, a louver drive assembly and louvers as described in any of the above embodiments.

[0078] The louver drive assembly is fixedly connected to the air outlet frame.

[0079] The oscillating blades are rotatably connected to the air outlet frame. The output shaft of the motor 300 is connected to the oscillating blades via a transmission mechanism to drive the oscillating blades to rotate.

[0080] In this embodiment, when the motor 300 is working, the output shaft of the motor 300 rotates, which drives the rotating shaft 210 to rotate, thereby causing the connecting crank 200 to rotate synchronously, so that the pendulum connected to the connecting crank 200 can rotate or move.

[0081] With a certain gap between the connecting crank 200 and the first protrusion 130, when the oscillating blade drive assembly is working, the connecting crank 200 rotates. Since the front surface of the front plate 110 is provided with the first protrusion 130, even when the connecting crank 200 is tilted, it can reduce the contact area between the connecting crank 200 and the motor housing 100, thereby reducing the friction between the connecting crank 200 and the motor housing 100. This not only reduces the energy required for the motor 300 to drive the connecting crank 200 to rotate, but also reduces the noise generated when the connecting crank 200 rotates, improving the user experience.

[0082] Alternatively, when the connecting crank 200 contacts the first protrusion 130, since the front surface of the front plate 110 is provided with the first protrusion 130, the connecting crank 200 only contacts the first protrusion 130 formed on the front plate 110 of the motor housing 100. This reduces the shaking of the connecting crank 200 and improves its stability, while also reducing the contact area between the connecting crank 200 and the motor housing 100. Consequently, the friction between the connecting crank 200 and the motor housing 100 is reduced, which not only reduces the energy required for the motor 300 to drive the connecting crank 200 to rotate, but also reduces the noise generated when the connecting crank 200 rotates, thus improving the user experience.

[0083] In some embodiments of the indoor unit of the air conditioner of this utility model, such as Figure 5 As shown, the motor box 100 protrudes downward to form a connecting post 170.

[0084] The air outlet frame is located on the lower side of the motor box 100. A connecting groove is formed on the air outlet frame to fit and insert into the connecting post 170.

[0085] In this embodiment, the output shaft of the motor 300 rotates in the front-to-back direction, thereby driving the oscillating blades to move. During the operation of the motor 300, the motor 300 will produce a wobbling motion perpendicular to the front-to-back direction. Inserting the connecting post 170 into the connecting slot restricts the movement of the motor housing 100 in the vertical direction, making the motor 300 more stable during operation, reducing motor vibration, and thus reducing the likelihood of resonance between the motor housing 100 and the air outlet frame. This reduces the noise generated by the oscillating blades during operation and improves the user experience.

[0086] In some embodiments of the indoor unit of the air conditioner of this utility model, a vibration damping layer is adhered to the peripheral wall of the connecting column 170.

[0087] Furthermore, in some embodiments of the indoor unit of the air conditioner of this utility model, flocked cloth is adhered to the peripheral wall of the connecting column 170.

[0088] Alternatively, in some alternative embodiments of the indoor unit of the air conditioner of this utility model, a rubber ring is fitted on the peripheral wall of the connecting column 170.

[0089] In the above embodiment, a damping layer such as flocked cloth or rubber ring is fixed to the periphery of the connecting column 170, that is, between the connecting column 170 and the connecting groove, to further reduce the vibration of the motor box 100, thereby reducing the resonance between the motor box 100 and the mounting frame and reducing the noise when the swing blade moves.

[0090] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A louver drive assembly, characterized in that, include: Electric motor; A motor housing for mounting a motor, the motor housing including a front plate with a through hole, the front surface of the front plate protruding forward to form a first protrusion; the output shaft of the motor extends forward through the through hole; A connecting crank is provided, the connecting crank including a rotating shaft extending in a front-rear direction, the rotating shaft being fixedly connected to the output shaft of the motor, and the rear end of the rotating shaft being disposed in front of the first protrusion, and the projection of the front end surface of the first protrusion on the plane where the rear surface of the rotating shaft is located is within the rear surface of the rotating shaft.

2. The oscillating blade drive assembly according to claim 1, characterized in that, The rear end of the rotating shaft is formed with a mounting plate, which is arranged perpendicular to the front-back direction; the rear end of the mounting plate contacts the front end of the first protrusion. The motor box also includes a first baffle, which is fixedly connected to the front side of the front plate and located on the front side of the mounting plate.

3. The oscillating blade drive assembly according to claim 2, characterized in that, The first baffle and the front plate are connected by a second baffle extending in the front-rear direction; The mounting plate is a circular plate, and a positioning plate extending radially outward along the mounting plate is connected to the mounting plate; the second baffle is configured to stop on the rotation path of the positioning plate to limit the rotation angle of the positioning plate.

4. The oscillating blade drive assembly according to claim 3, characterized in that, The front panel is provided with a forming hole, and the projection of the first baffle on the front panel is within the projection of the forming hole on the front panel.

5. The oscillating blade drive assembly according to claim 4, characterized in that, The projection of the first protrusion on the front plate is arc-shaped, the arc-shaped opening faces the molding hole, and is coaxial with the output shaft of the motor.

6. The oscillating blade drive assembly according to claim 2, characterized in that, The first baffle is spaced apart from the mounting plate, and the distance between them is less than the minimum radius of the mounting plate; or, The rear end of the first baffle forms a rearwardly protruding second protrusion, and the rear end of the second protrusion is in contact with the mounting plate.

7. The blade drive assembly according to claim 1, characterized in that, The cross-sectional profile of the first protrusion is trapezoidal with the smaller end pointing forward; or, The cross-sectional profile of the first protrusion is a triangle with the smaller end pointing forward; or, The cross-sectional profile of the first protrusion is an arc with a central angle less than or equal to 180°.

8. The oscillating blade drive assembly according to claim 2, characterized in that, Lubricant is applied between the first protrusion and the mounting plate.

9. An indoor unit for an air conditioner, characterized in that, include: Air outlet frame; The blade drive assembly as described in any one of claims 1 to 8, wherein the blade drive assembly is fixedly connected to the air outlet frame; The oscillating blade is rotatably connected to the air outlet frame; the output shaft of the motor is connected to the oscillating blade through a transmission mechanism to drive the oscillating blade to rotate.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The motor box protrudes downward to form a connecting post; The air outlet frame is located on the lower side of the motor box; a connecting groove is formed on the air outlet frame to fit and insert into the connecting post.

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