Air conditioner indoor unit

Abstract

The application provides an indoor air conditioner, which comprises a shell and a guide vane. A driving assembly comprises a first guide roller and a push rod. The push rod comprises a first connecting rod and a second connecting rod. A rack is arranged on the first connecting rod. A driving gear drives the push rod to move through the rack. An avoiding slot is arranged on the second edge of the first connecting rod. The second connecting rod is connected with the guide vane and the second edge of the first connecting rod respectively. The first guide roller is rollingly connected to the upper edge of the second connecting rod. When the push rod moves from the second position to the first position, the end of the second connecting rod close to the guide vane extends out of the driving box, and the first guide roller enters the avoiding slot from the opening. Through the avoiding slot, when the second connecting rod completely extends out of the driving box, the first guide roller is completely located in the avoiding slot. The guide vane can be extended out by a long distance in each mode under the condition that the space of the shell is limited, and each component can be reasonably arranged in the limited space of the driving box.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to an indoor unit for air conditioning. Background Technology

[0002] Air conditioner indoor units typically have air deflectors at their air outlets to adjust the airflow angle and meet different user needs. The air deflectors rotate under the drive of a mechanism to open and close the air outlets.

[0003] In existing technology, the air deflector drive mechanism of an air conditioner indoor unit has significant technical defects. Due to the dimensional limitations in the width direction of the wall-mounted unit, the drive mechanism cannot achieve an excessively long extension distance. However, to achieve special air delivery angles such as carpet breezes and canopy breezes, the air deflector requires a large stroke. Furthermore, existing gear and rack transmission mechanisms struggle to ensure a tight fit between the gears and rack, leading to gaps during movement. This structural defect not only affects transmission accuracy but also causes jamming during air deflector movement, severely impacting the stability and comfort of the air conditioning's airflow. Especially after prolonged use, increased gaps due to component wear make it more prone to movement problems.

[0004] Therefore, there is an urgent need to propose an indoor air conditioning unit. Utility Model Content

[0005] The present invention aims to solve, at least to some extent, the technical problems in the related art.

[0006] Therefore, according to embodiments of this disclosure, an air conditioning indoor unit is proposed, comprising: A housing, wherein an air duct is formed inside the housing, and an air inlet and an air outlet communicating with the air duct are provided on the housing; An air guide plate, which rotates relative to the housing to open or close the air outlet; A drive assembly for driving the air guide plate to move relative to the housing, the drive assembly comprising: A drive box, wherein a drive gear is rotatably connected inside the drive box; The first guide roller is rotatably connected to the inner wall of the drive box; A push rod, movably disposed within the drive box, moves between a first position extending out of the drive box and a second position retracting into the drive box to drive the air guide plate; the push rod includes: A first connecting rod has a rack on its first edge, the rack extending from one end near the air inlet toward the air outlet. A drive gear drives the push rod to move through the rack. A clearance groove is provided on the first connecting rod, the clearance groove being used to cooperate with the first guide roller; wherein the opening of the clearance groove faces the first guide roller. The second connecting rod has a first end connected to the air guide plate, a second end connected to the second edge of the first connecting rod, and a first guide roller rotatably connected to the upper edge of the second connecting rod. When the push rod moves from the second position to the first position, the end of the second connecting rod near the air guide plate extends out of the drive box and gradually moves away from the drive box. The clearance groove gradually approaches the first guide roller until the first guide roller enters the clearance groove from the opening.

[0007] In this application, by setting a drive assembly, it is ensured that when the push rod drives the air guide plate, the extension of the second connecting rod meets the long stroke movement requirements of the air guide plate when adjusting to a large angle. The power is transmitted through the meshing of the rack and drive gear on the first connecting rod, and the meshing transmission precisely controls the extension and retraction of the push rod. The guide engagement between the first guide roller and the upper edge of the second connecting rod greatly improves the tightness of the engagement between the drive gear and the rack, reduces the movement gap and avoids jamming. By setting an avoidance groove, when the push rod moves from the second position to the first position, the first guide roller enters the avoidance groove from the opening, increasing the length of the second connecting rod extending out of the drive box. This allows the air guide plate to extend a long distance in various modes under limited housing width, and allows for reasonable layout of various components within the limited drive box space, taking into account both size constraints and the multi-angle adjustment function of the air guide plate. Ultimately, it achieves stable and precise wind pattern control of the air guide plate in a compact structure.

[0008] According to embodiments of this disclosure, the driver box includes: A first housing has a first mounting cavity inside, and the first guide roller is mounted in the first mounting cavity; the first housing has an opening on the side near the air guide plate, and the second connecting rod passes through the opening and is located in the first mounting cavity; The second box is positioned opposite to the first box.

[0009] In this application, the drive box is divided into a first box and a second box. The first mounting cavity inside the first box provides a stable mounting space for the first guide roller, and the opening therein can meet the movement requirements of the second connecting rod, ensuring reliable cooperation between the guide limiting mechanism and the push rod, and providing structural support for solving the gear and rack backlash problem.

[0010] According to an embodiment of this disclosure, the depth of the first mounting cavity is greater than the depth of the second mounting cavity; The first connecting rod includes: The first rod portion is located within the first mounting cavity; The second rod portion is disposed on the side of the first rod portion near the second housing body. At least part of the second rod portion is located in the first mounting cavity, and another part of the second rod portion is located in the second mounting cavity. The rack is disposed on the first edge of the second rod portion. A guide groove is provided on the second rod portion, and the extending direction of the guide groove is parallel to the movement direction of the push rod; A limiting post is provided on the inner wall of the second box, and the limiting post is slidably connected in the guide groove.

[0011] In this application, by setting up guide grooves and limiting posts, smooth linear movement of the push rod is achieved within a limited installation space. This ensures that the gear and rack maintain a constant meshing clearance throughout the entire stroke range, eliminating transmission jamming caused by deviation in the movement trajectory and improving the reliability of the air guide plate's opening and closing action. The cross-cavity layout design of the push rod ensures structural strength while effectively controlling the overall thickness of the drive assembly, adapting to the compact installation requirements of the air conditioning indoor unit.

[0012] According to an embodiment of this disclosure, a cavity is formed between the first rod portion and the second rod portion; A first through hole is provided on the first edge of the first rod portion, and the first through hole communicates with the cavity; A second guide roller is provided on the side of the first rod portion near the second rod portion, and the second guide roller at least partially passes through the first through hole and is located outside the cavity; A first platform is provided inside the first box, and the extension direction of the first platform is parallel to the movement direction of the push rod. The second guide roller rolls and acts on the first platform.

[0013] In this application, the cavity is configured as a mounting space to accommodate the second guide roller, and the first through hole allows the second guide roller to partially extend out of the cavity and contact the first platform. When the push rod moves, the second guide roller rolls along the first platform, limiting the displacement of the push rod perpendicular to the direction of motion. This constraint is complementary to the meshing direction of the rack and drive gear, ensuring that the rack maintains close contact with the drive gear throughout the movement, avoiding meshing misalignment due to backlash.

[0014] According to embodiments of this disclosure, the drive assembly further includes a third guide roller; A second through hole is provided on the third edge of the first connecting rod, the third edge being disposed opposite to the first edge, and the second through hole communicating with the cavity; The third guide roller is installed inside the cavity, and the third guide roller at least partially protrudes through the second through hole and is located outside the cavity. The third guide roller is rotatably connected to the inner wall of the drive box.

[0015] In this application, the third guide roller is installed in the cavity of the first connecting rod and partially protrudes through the second through hole, rollingly connecting to the inner wall of the drive box. It can form additional support from the third edge of the first connecting rod and together with the first guide roller, it forms a bidirectional guide structure, limiting the offset of the push rod during movement, ensuring that the rack always meshes precisely with the drive gear, fundamentally eliminating the risk of gaps and jamming caused by insufficient guidance on one side, avoiding offset or shaking during movement, and ensuring the reliability and service life of the drive assembly.

[0016] According to an embodiment of this disclosure, a third through hole communicating with the cavity is provided on the side of the second rod portion near the second housing, and a damping block is installed in the cavity; The damping block extends at least partially through the third through hole and is located outside the cavity.

[0017] In this application, when the push rod extends and retracts under the drive gear, the damping block inside the second rod extends outward through the third through hole and maintains contact with the inner wall of the drive box. When the gear and rack meshing clearance causes a slight offset or vibration of the push rod, sliding friction occurs between the contact surface between the damping block and the inner wall of the drive box, forming dynamic resistance. This damping effect buffers the impact force when the push rod extends or retracts, preventing abnormal noise caused by rigid collisions between components, and also reducing fluctuations in movement speed, making the adjustment of the air guide plate angle smoother and more stable.

[0018] According to an embodiment of this disclosure, at least one first annular limiting post is provided on the side of the second rod portion near the second box body, and the first annular limiting post abuts against the inner wall of the second box body.

[0019] In this application, during the push rod's movement, the annular contact surface of the first annular limiting post maintains continuous contact with the inner wall of the second housing. The first annular limiting post can form a lateral limiting engagement with the second housing, restricting excessive offset of the push rod towards the second housing during movement, ensuring that the rack and drive gear always maintain precise meshing, and avoiding increased clearance or jamming caused by offset.

[0020] According to an embodiment of this disclosure, at least one second annular limiting post is provided on the side of the first rod near the first box body, and the second annular limiting post abuts against the inner wall of the first box body.

[0021] In this application, during the push rod movement, the annular contact surface of the second annular limiting post maintains continuous contact with the inner wall of the first housing. The second annular limiting post can form a lateral limiting engagement with the first housing, limiting the excessive offset of the push rod towards the first housing during movement, ensuring that the rack and drive gear always maintain a precise meshing state, and avoiding problems such as increased clearance or jamming caused by offset.

[0022] According to an embodiment of this disclosure, a mounting portion is further provided inside the drive box; The mounting section is provided with a fourth guide roller, which rolls against the lower edge of the second connecting rod.

[0023] In this application, when the push rod retracts under the drive of the drive gear, the lower edge of the second connecting rod rolls in contact with the fourth guide roller, while the upper edge rolls in contact with the first guide roller. The fourth guide roller provides an upward constraint on the lower edge of the second connecting rod, and the first guide roller provides a downward constraint on the upper edge of the second connecting rod. Together, they restrict the vertical displacement of the second connecting rod, ensuring that the push rod maintains horizontal linear motion during movement. This avoids an increase in the meshing clearance between the gear and rack due to unilateral limiting, thereby eliminating the risk of jamming during transmission.

[0024] According to embodiments of this disclosure, the drive assembly further includes a first drive motor; The air guide plate is provided with a connector on the side near the housing. The first drive motor is installed on the end of the second connecting rod near the air guide plate. The output shaft of the first drive motor is connected to the connector. The first drive motor is used to drive the connector to rotate, and the connector drives the air guide plate to rotate so that the air guide plate can flip relative to the housing.

[0025] In this application, the first drive motor can directly provide precise power for the rotation of the air guide plate. With the long stroke support of the push rod, the air guide plate can not only achieve basic angle adjustment by extending and retracting the push rod, but also complete a larger rotation movement with the help of the motor drive, making it easier to meet the needs of diverse wind patterns such as carpet wind and canopy wind.

[0026] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an air conditioner indoor unit according to an embodiment of this application; Figure 2 This is a first-view structural schematic diagram of the drive assembly and air guide plate according to an embodiment of this application; Figure 3This is a second-view structural schematic diagram of the drive assembly and air guide plate according to an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the driving component in one embodiment of this application, with the second housing removed; Figure 5 This is a schematic diagram of the structure of the driving component of an embodiment of this application after removing the first box body; Figure 6 This is a first-view structural schematic diagram of the push rod according to an embodiment of this application; Figure 7 This is a second-view structural schematic diagram of the push rod according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of the second box body according to an embodiment of this application; Figure 9 This is a schematic diagram of the structure of the first box body according to an embodiment of this application; Figure 10 This is a schematic diagram of the structure of the first box and the first rod in an embodiment of this application.

[0028] The annotations in the attached figures are explained as follows: 1. Housing; 2. Air guide plate; 210. Connecting parts; 3. Driver components; 310. Drive box; 311. Drive gear; 312. First box body; 3120. First mounting cavity; 3121. First platform; 313. Second box body; 3130. Second mounting cavity; 3131. Limiting post; 320. First guide roller; 330, push rod; 331, first connecting rod; 3301, rack; 3302, clearance groove; 3310, first rod part; 3311, first through hole; 3312, second annular limiting post; 3320, Second rod section; 3321, Guide groove; 3322, Damping block; 3323, First annular limiting post; 3303, Second through hole; 332. Second connecting rod; 340. Second guide roller; 350. Third guide roller; 360. Mounting part; 370. Fourth guide roller; 380. First drive motor; 390. Second drive motor. Detailed Implementation

[0029] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0031] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] This application discloses an indoor unit for an air conditioner, as shown in the appendix below. Figures 1-10 Describe the indoor unit of the air conditioner.

[0034] In this application, the indoor unit of an air conditioner can be a component of an air conditioner. The air conditioner may also include an outdoor unit.

[0035] In this application, reference is made to Figure 1 The indoor unit of the air conditioner can be a split wall-mounted air conditioner, and the air conditioner can be a cooling unit or a cooling and heating unit. In the description of this utility model, the air conditioner is used as an example of a cooling and heating unit.

[0036] In this application, the outdoor unit of an air conditioner may include an outdoor unit housing. The outdoor unit housing may contain an outdoor receiving space. The outdoor unit may include an outdoor heat exchanger. The outdoor heat exchanger may be located within the outdoor receiving space. The outdoor unit may also include an outdoor fan. The outdoor fan may be located within the outdoor receiving space.

[0037] In this application, the outdoor unit casing may be provided with an outdoor air inlet. The outdoor air inlet may communicate with the outdoor enclosure space. The outdoor air inlet can be used to introduce outdoor airflow into the outdoor enclosure space. The outdoor unit casing may be provided with an outdoor air outlet. The outdoor air outlet may communicate with the outdoor enclosure space. The outdoor air outlet can be used to lead the airflow from the outdoor enclosure space to the outside of the outdoor enclosure space. The rotation of the outdoor fan causes the outdoor airflow to enter the outdoor enclosure space through the outdoor air inlet and exchange heat with the outdoor heat exchanger. The heat-exchanged outdoor airflow flows out of the outdoor enclosure space through the outdoor air outlet.

[0038] In this application, the air conditioner may include a compressor. The compressor may be located within an outdoor enclosure. The air conditioner may include a throttling device. The throttling device is used for throttling. The throttling device may be located within an outdoor enclosure.

[0039] Reference Figures 1-10 This application proposes an indoor air conditioner unit. The indoor air conditioner unit includes a housing 1. The housing 1 is configured as the housing of the indoor air conditioner unit. The housing 1 can be a hollow cuboid structure. It should be noted that in other embodiments, the housing 1 can also adopt other shapes. The specific shape of the housing 1 can be adjusted as needed and is not limited here.

[0040] In this application, reference is made to Figure 1 The housing 1 may have a top and a bottom. The distance from the bottom to the top of the housing 1 can be the height direction of the housing 1. The housing 1 may also have a length direction. The distance from the first end to the second end of the housing 1 can be the length direction of the housing 1, as shown in the figure. Figure 3 The left side of housing 1 is the first side end, and the right side of housing 1 is the second side end. Housing 1 may have a front side and a rear side that are arranged opposite to each other. The side of housing 1 facing the user can be the front side of housing 1. The distance from the front side to the rear side of housing 1 can be the thickness direction of housing 1.

[0041] In this application, references Figure 1 An air duct is formed inside the shell 1, and an air inlet and an air outlet connected to the air duct are provided on the shell 1. A fan and an indoor heat exchanger (not shown in the figure) are provided inside the shell 1. The fan rotates inside the shell 1 and draws in the air outside the shell 1 through the air inlet. The air is then sent out through the air outlet of the indoor heat exchanger inside the shell 1.

[0042] In this application, one of the indoor heat exchanger and the other of the outdoor heat exchanger is a condenser and the other is an evaporator.

[0043] In this application, the air conditioner performs a refrigeration cycle using a compressor, a condenser, a throttling device, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, supplying refrigerant to a regulated and heat-exchanged gas stream. The compressor compresses the refrigerant gas at a low temperature and low pressure, discharging it at a high temperature and high pressure. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process. The throttling device expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant.

[0044] In this application, the evaporator evaporates the refrigerant that expands in the throttling device and returns the refrigerant gas, which is in a low-temperature, low-pressure state, to the compressor. The evaporator achieves a cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material to be cooled. Throughout the cycle, the air conditioner can regulate the temperature of the indoor space.

[0045] In this application, when the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in cooling mode.

[0046] In this application, the air inlet can be the entrance for airflow into the housing 1. The air inlet can be located on the rear side of the housing 1. The air outlet can be the outlet for airflow out of the housing 1, and the opening direction of the air outlet extends along the length direction of the housing 1. The air outlet can be located on the side of the housing 1, or it can be located on the front side of the housing 1. The specific location of the air outlet can be adjusted as needed and is not limited here. In this application, the air outlet is located on the front side of the housing 1.

[0047] In this application, reference is made to Figure 1 The indoor unit of the air conditioner may also include an air guide plate 2, which is connected to the housing 1. The air guide plate 2 rotates relative to the housing 1 to open or close the air outlet. The air guide plate 2 controls the airflow direction of the indoor unit. Specifically, the air guide plate 2 is rotatably connected to the housing 1 via a rotating shaft. The rotating shaft is driven to rotate by a drive motor 380 fixedly installed in the housing 1. The air guide plate 2 rotates relative to the housing 1 to open or close the air outlet. The airflow direction and airflow on / off are controlled by the air guide plate 2 at different working positions at the air outlet. The air guide plate 2 can be made of plastic and has a long plate-like structure. The length of the air guide plate 2 is adapted to the extension length of the air outlet. In a cross-section parallel to the thickness direction of the housing 1, the projection of the air guide plate 2 in the cross-section can be arc-shaped. Plastic material is lightweight, low-cost, and easy to process into arc shapes, which reduces the load on the drive component 3 to reduce the risk of jamming. The long plate-like structure is adapted to the extension length of the air outlet, which can achieve full coverage and complete air guidance of the air outlet, avoiding local air leakage or uneven air guidance. At the same time, the arc-shaped cross-section parallel to the thickness direction of the housing 1 can reduce the resistance and turbulence noise when the airflow passes through, making the airflow smoother and gentler. It can also accurately guide the airflow direction through the curved surface, better realize the directional delivery of specific airflow patterns such as carpet wind and canopy wind, taking into account practicality and user experience.

[0048] In this application, reference is made to Figure 2 and Figure 3 The indoor unit of the air conditioner may also include a drive assembly 3 for driving the air guide plate 2 relative to the housing 1. Along the length of the housing 1, two drive assemblies 3 may be provided inside the indoor unit of the air conditioner, and the two drive assemblies 3 together drive the air guide plate 2.

[0049] Among them, reference Figure 3 and Figure 4 The drive assembly 3 includes a drive box 310, a first guide roller 320, and a push rod 330. A drive gear 311 and a push rod 330 are located within the drive box 310. The drive gear 311 is driven by a second drive motor 390. A rack 3301 is mounted on the push rod 330, extending from the end near the air inlet towards the end near the air outlet. The drive gear 311 meshes with the rack 3301, driving the push rod 330 to move via the rack 3301. The push rod 330 moves between a first position extending out of the drive box 310 and a second position retracting into the drive box 310 to move the air guide plate 2. The first guide roller 320 is rotatably connected to the inner wall of the drive box 310, and rolls against the push rod 330. The first guide roller 320 is a rolling component installed in the drive box 310. Specifically, it can be a metal roller with bearings, which forms a guide limit by rolling contact with the push rod 330.

[0050] In this application, reference is made to Figure 4 , Figure 5 , Figure 6 and Figure 7The push rod 330 includes a first connecting rod 331 and a second connecting rod 332, wherein the first connecting rod 331 and the second connecting rod 332 can be integrally formed or separate structures. In this application, the first connecting rod 331 and the second connecting rod 332 are integrally formed. A rack 3301 is provided on the first edge of the first connecting rod 331, extending from the end near the air inlet toward the end near the air outlet. The drive gear 311 drives the push rod 330 to move through the rack 3301. A relief groove 3302 is provided on the first connecting rod 331, which is used to cooperate with the first guide roller 320. The opening of the relief groove 3302 faces the first guide roller 320. It can be understood that the relief groove 3302 is provided on the second edge of the first connecting rod 331, and the opening of the relief groove 3302 faces the first guide roller 320; wherein, the first edge of the first connecting rod 331 and the first connecting rod The second edge of the first connecting rod 331 is adjacent to the air outlet, meaning that the end of the first connecting rod 331 near the air outlet is the second edge. The first end of the second connecting rod 332 is connected to the air guide plate 2, the second end of the push rod 330 is connected to the second edge of the first connecting rod 331, and the first guide roller 320 is rotatably connected to the upper edge of the second connecting rod 332. When the push rod 330 moves from the second position to the first position, the end of the second connecting rod 332 near the air guide plate 2 extends out of the drive box 310 and gradually moves away from the drive box 310. The clearance groove 3302 gradually approaches the first guide roller 320 until the first guide roller 320 enters the clearance groove 320 from the opening. (Refer to...) Figure 4 , Figure 5 , Figure 6 and Figure 7 The clearance groove 3302 is a recessed structure provided on the second edge of the first connecting rod 331. The clearance groove 3302 can be rectangular or arc-shaped, etc., and is used to accommodate the first guide roller 320 when the push rod 330 extends. The first edge and the second edge of the first connecting rod 331 can be set perpendicularly so that the transmission rack 3301 and the guide structure do not interfere with each other.

[0051] The first connecting rod 331 and the second connecting rod 332 can be an integrally formed structure or a separate structure connected by other connection methods such as welding, bonding or bolting.

[0052] Specifically, the drive gear 311 drives the first connecting rod 331 to move linearly via the rack 3301. During the extension of the push rod 330, the first guide roller 320 rolls along the upper edge of the second connecting rod 332. When the push rod 330 reaches its maximum extension position, the second edge of the first connecting rod 331 contacts the inner wall of the drive box 310 to form a mechanical limit. At this time, the first guide roller 320 is fully embedded in the clearance groove 3302, eliminating the vertical gap caused by the contact between the roller and the plane in the traditional structure. After the second connecting rod 332 is fully extended from the drive box 310, it drives the air guide plate 2 to reach its maximum opening angle through a rigid connection. The drive gear 311 and rack 3301 bear the driving force, and the first guide roller 322 cooperates with the second connecting rod 332 to control the motion trajectory. The two work together to avoid the accumulation of gaps.

[0053] Through the above technical solution, by setting the drive assembly 3, it can be ensured that when the push rod 330 drives the air guide plate 2 to move, the extension of the second connecting rod 332 can meet the long stroke movement requirements of the air guide plate 2 during large-angle adjustment. The power is transmitted through the meshing of the rack 3301 on the first connecting rod 331 and the drive gear 311. The meshing transmission precisely controls the extension and retraction of the push rod 330. The guiding cooperation between the first guide roller 320 and the upper edge of the second connecting rod 332 greatly improves the cooperation between the drive gear 311 and the rack 3301. The tightness reduces movement gaps to avoid jamming. By setting the clearance groove 3302, when the second connecting rod 332 is fully extended out of the drive box 310, the first guide roller 320 is completely located in the clearance groove 3302. This allows the air guide plate 2 to extend a long distance in various modes under the limited width of the housing 1, and also allows for the reasonable layout of various components within the limited space of the drive box 310. It takes into account both size limitations and the multi-angle adjustment function of the air guide plate 2, and finally achieves stable and precise wind pattern control of the air guide plate 2 under a compact structure.

[0054] In this application, reference is made to Figure 4 , Figure 5 , Figure 8 and Figure 9 The drive box 310 includes a first box body 312 and a second box body 313. The first box body 312 has a first mounting cavity 3120, and a first guide roller 320 is installed in the first mounting cavity 3120. The first box body 312 has an opening on the side near the air guide plate 2, and a second connecting rod 332 passes through the opening and is located in the first mounting cavity 3120. The second box body 313 is arranged opposite to the first box body 312.

[0055] For example, refer to Figure 4 , Figure 5 , Figure 8 and Figure 9Both the first box 312 and the second box 313 can be manufactured using injection molding. When assembling, the first box 312 and the second box 313 can be connected by adhesive bonding or by bolt holes in both boxes, using bolts to secure them together. The thickness of the first box 312 is greater than the thickness of the second box 313. The direction extending from the first box 312 towards the second box 313 is defined as the thickness direction of the box. This can be understood as the depth of the first mounting cavity 3120 and the second mounting cavity 3130. The thickened design of the first box 312 provides installation space for the first guide roller 320. The first guide roller 320, located inside the first mounting cavity 3120, rolls in contact with the upper edge of the second connecting rod 332, limiting the vertical displacement of the push rod 330 during movement. The second housing 313 features a thinner design to save space and adapt to the narrow installation environment inside the wall-mounted unit.

[0056] The opening in the first housing 312 refers to a through-hole structure located at the end of the first housing 312. This through-hole can have a rectangular or circular cross-section and allows the second connecting rod 332 to pass through and move axially, thus physically constraining the trajectory of the push rod 330. Specifically, the opening structure allows the second connecting rod 332 to maintain linear movement during extension and retraction, avoiding motion interference due to insufficient space. The second housing 313, with its reduced thickness, forms an asymmetrical layout with the first housing 312. Under the condition of limited mounting width, the thickened portion of the first housing 312 concentrates the mechanical stress of the gear and rack 3301 transmission system and provides installation space for the guide rollers. Simultaneously, the thinner design of the second housing 313 releases space allowance, ensuring that the push rod 330 achieves long-stroke movement within a limited space.

[0057] In the above technical solution, the drive box 310 is divided into a first box 312 and a second box 313. The first mounting cavity 3120 inside the first box 312 provides a stable mounting space for the first guide roller 320, and its opening can meet the movement requirements of the second connecting rod 332, ensuring reliable cooperation between the guide limiting mechanism and the push rod 330, and providing structural support for solving the gap problem of the gear rack 3301. The thickness of the second box 313 is less than the thickness of the first box 312. Under the condition of limited width of the wall-mounted unit, this application can achieve long stroke movement of the push rod 330 by optimizing the space allocation of the drive box 310, ensuring that the air guide plate 2 can achieve large-angle rotation, saving space and adapting to the narrow installation environment inside the wall-mounted unit.

[0058] In this application, reference is made to Figure 4 , Figure 5 , Figure 6 and Figure 8The depth of the first mounting cavity 3120 is greater than the depth of the second mounting cavity 3130. The first connecting rod 331 includes a first rod portion 3310 and a second rod portion 3320, wherein the second rod portion 3320 is disposed opposite to the first rod portion 3310, and the second rod portion 3320 is disposed on the side of the first rod portion 3310 near the second housing 313. At least part of the second rod portion 3320 is located within the first mounting cavity 3120, and the other part of the second rod portion 3320 is located within the second mounting cavity 3130. It can be understood that after the drive housing 310 is assembled, the first rod portion 3310 is completely located within the first mounting cavity 3120, a portion of the second rod portion 3320 is accommodated within the first mounting cavity 3120, and the other part of the second rod portion 3320 is accommodated within the second mounting cavity 3130. The rack 3301 is located at the first edge of the second rod portion 3320, that is, the rack 3301 is located at the upper edge of the second rod portion 3320; a guide groove 3321 is provided on the side of the second rod portion 3320, and the extension direction of the guide groove 3321 is parallel to the movement direction of the push rod 330; a limiting post 3131 is provided on the inner wall of the second housing 313, and the limiting post 3131 is slidably connected in the guide groove 3321.

[0059] For example, the first rod portion 3310 can be formed by die casting of aluminum alloy or by stamping of stainless steel sheet, and is used to form a basic support in the cavity of the drive box 310. The second rod portion 3320 refers to the transmission structure arranged parallel to the first rod portion 3310, and can also be formed by die casting of aluminum alloy or by stamping of stainless steel sheet. The guide groove 3321 is a straight groove opened along the movement direction of the push rod 330, and can be formed by CNC milling. Its length direction is parallel to the stroke axis of the push rod 330, and is used to constrain the movement trajectory of the limiting post 3131. The limiting post 3131 is a cylindrical protrusion fixed to the inner wall of the second box 313, and can be integrally formed with the box body by injection molding. Its diameter forms a clearance fit with the width of the guide groove 3321, and is used to limit the displacement of the push rod 330.

[0060] Specifically, the split structure formed by the first rod portion 3310 and the second rod portion 3320 allows the push rod 330 to span the two mounting cavities of the drive box 310, extending the power transmission path within a limited space. When the drive gear 311 drives the rack 3301, the guide groove 3321 on the second rod portion 3320 forms an auxiliary sliding with the limiting post 3131, and the axis of this sliding is completely parallel to the direction of movement of the push rod 330. This dual guiding mechanism ensures that the push rod 330 always moves along a predetermined trajectory during its extension, effectively counteracting the lateral force generated when the gear and rack 3301 mesh. The sliding stroke of the limiting post 3131 in the guide groove 3321 matches the maximum stroke of the push rod 330. When the push rod 330 reaches its limit position, the limiting post 3131 and the end of the guide groove 3321 form a mechanical limit, ensuring that the rack 3301 and the drive gear 311 remain fully engaged.

[0061] In this application, by setting the guide groove 3321 and the limiting post 3131 in cooperation, the push rod 330 achieves smooth linear movement within a limited installation space, ensuring that the gear rack 3301 maintains a constant meshing clearance throughout its entire stroke range, eliminating transmission jamming caused by deviation in the movement trajectory, and improving the reliability of the opening and closing action of the air guide plate 2. The cross-cavity layout design of the push rod 330 ensures structural strength while effectively controlling the overall thickness of the drive assembly 3, adapting to the compact installation requirements of the air conditioner indoor unit.

[0062] In this application, reference is made to Figure 6 and Figure 10 A cavity is formed between the first rod portion 3310 and the second rod portion 3320; a first through hole 3311 is provided on the first edge of the first rod portion 3310, and the first through hole 3311 communicates with the cavity; a second guide roller 340 is provided on the side of the first rod portion 3310 near the second rod portion 3320, and the second guide roller 340 passes through the first through hole 3311 at least partially and is located outside the cavity; a first platform 3121 is provided inside the first housing 312, and the extension direction of the first platform 3121 is parallel to the movement direction of the push rod 330, and the second guide roller 340 rolls on the first platform 3121.

[0063] It should be noted that the cavity refers to the internal space formed between the first rod portion 3310 and the second rod portion 3320. In other words, both the first rod portion 3310 and the second rod portion 3320 are hollow structures. When they are engaged, a cavity is formed between them for installing other components, providing installation space for the second guide roller 340. The first through hole 3311 is an opening located on the first edge of the first rod portion 3310, which can be implemented using a circular or rectangular hole structure, allowing the second guide roller 340 to pass through and contact the external structure. That is, the rack 3301 is located on the upper edge of the second rod portion 3320 for engaging with the drive gear 311. The first through hole 3311 is located on the upper edge of the first rod portion 3310, through which the second guide roller 340 engages with the drive box 310.

[0064] In this application, the first platform 3121 refers to a planar structure disposed on the inner wall of the first housing 312, which can be implemented by stamping or welding metal plates, providing a continuous rolling support surface for the second guide roller 340. The second guide roller 340 is a rolling component installed on the first rod portion 3310, which can be implemented by a metal roller with bearings, forming a limit by rolling contact with the first platform 3121.

[0065] Specifically, the second guide roller 340 is installed in the cavity formed by the first rod portion 3310 and the second rod portion 3320. The first through hole 3311 allows the second guide roller 340 to partially extend out of the cavity and contact the first platform 3121. When the push rod 330 moves, the second guide roller 340 rolls along the first platform 3121, thereby creating a constraint force that restricts the displacement of the push rod 330 in the direction perpendicular to the movement direction. This constraint force is complementary to the meshing direction of the rack 3301 and the drive gear 311, ensuring that the rack 3301 maintains close contact with the drive gear 311 during movement, avoiding meshing misalignment due to clearance, and further facilitating the movement of the push rod 330.

[0066] In the above technical solution, the structural combination of the second guide roller 340 and the first platform 3121 can further enhance the guiding accuracy and stability of the push rod 330's movement. The second guide roller 340 partially passes through the first through hole 3311 and rolls on the first platform 3121. With the extension of the first platform 3121 along the movement direction of the push rod 330, it provides linear guiding support for the push rod 330 along the movement trajectory, forming multi-directional cooperative limiting with other guide rollers, effectively limiting the twisting or offset of the push rod 330 during the movement, and ensuring the meshing accuracy of the rack 3301 and the drive gear 311. In addition, the cavity provides a hidden installation space for the second guide roller 340, and the first through hole 3311 realizes the precise matching between the roller and the external platform. Without increasing the overall size of the push rod 330, the clever layout of the internal structure supplements the guiding support points, which not only adapts to the limited installation space of the drive box 310, but also improves the smoothness of the push rod 330's long-distance extension and retraction, further reducing the risk of jamming and enhancing the operational reliability of the drive assembly 3.

[0067] In this application, reference is made to Figure 7 and Figure 10 The drive assembly 3 also includes a third guide roller 350; a second through hole 3303 is provided on the third edge of the first connecting rod 331, the third edge is disposed opposite to the first edge, and the second through hole 3303 communicates with the cavity; the third guide roller 350 is installed in the cavity, the third guide roller 350 at least partially protrudes through the second through hole 3303 and is located outside the cavity, and the third guide roller 350 is tactilely connected to the inner wall of the drive box 310.

[0068] For example, refer to Figure 7 and Figure 10 Both the first rod portion 3310 and the second rod portion 3320 have openings at their lower edges, which together form the second through hole 3303. When the first housing 312 and the second housing 313 of the drive box 310 are engaged, a portion of the third guide roller 350 rolls on the inner wall of the first housing 312, and the other portion of the third guide roller 350 rolls on the inner wall of the second housing 313. The inner wall of the drive box 310 serves as the rolling contact surface of the third guide roller 350, and the displacement of the push rod 330 is limited by continuous rolling friction.

[0069] The third guide roller 350 is a rolling component housed within the cavity of the first connecting rod 331. It can be implemented using a combination of a bearing and a metal shaft, with a portion of its structure passing through the second through hole 3303 and contacting the inner wall of the drive box 310. This applies a constraint force to the third edge of the push rod 330, balancing the lateral offset caused by the meshing of the gear rack 3301. The second through hole 3303 can be rectangular or circular, its dimensions matching the rolling portion of the third guide roller 350. The third through hole allows a portion of the third guide roller 350 to be exposed while maintaining the overall strength of the first connecting rod 331.

[0070] Specifically, when the push rod 330 extends and retracts under the drive of the drive gear 311, the third guide roller 350 generates rolling friction on the inner wall of the drive box 310. Since the third guide roller 350 is confined within the movement space formed by the cavity and the second through hole 3303, its rolling trajectory remains parallel to the direction of movement of the push rod 330. When a misalignment occurs during the meshing of the gear and rack 3301, the third guide roller 350 transmits the misalignment force to the inner wall of the drive box 310 through rolling contact, thereby counteracting the misalignment tendency of the push rod 330. In the fully extended state of the push rod 330, the third guide roller 350 and the second guide roller 340 form symmetrically distributed constraint points, ensuring that the push rod 330 maintains a linear motion trajectory during long-stroke movement.

[0071] In the above technical solution, the third guide roller 350 extends from the third edge opposite to the first edge where the rack 3301 is located through the second through hole 3303 and rolls to connect with the inner wall of the drive box 310. It can form additional support from the third edge of the first connecting rod 331 and form opposing clamping and limiting with the first guide roller 320 or the second guide roller 340, forming a bidirectional guiding structure. This effectively constrains the offset of the push rod 330 during the movement process, ensuring that the rack 3301 always meshes precisely with the drive gear 311, reducing the gap and jamming caused by offset from the root. In addition, the cavity provides built-in installation space for the third guide roller 350, and the second through hole 3303 realizes effective contact between the roller and the inner wall of the drive box 310. Without occupying additional external space of the drive box 310, the reasonable layout of the internal structure increases the guide support points, which not only adapts to the size limitation in the width direction of the hanging machine, but also ensures the smoothness of the push rod 330 during long-distance extension and retraction, further enhancing the operational reliability of the drive assembly 3.

[0072] In this application, reference is made to Figure 4 and Figure 7 A third through hole communicating with the cavity is provided on the side of the second rod 3320 near the second box 313, and a damping block 3322 is installed in the cavity; the damping block 3322 at least partially protrudes through the third through hole and is located outside the cavity.

[0073] The third through hole refers to the opening structure on the side of the second rod 3320, which can be implemented as a circular or rectangular hole, providing an installation channel for the damping block 3322. The damping block 3322 is a friction component with elastic deformation capability, which can be implemented using rubber or silicone material. Part of its structure passes through the third through hole and forms a contact surface with the inner wall of the drive box 310, generating frictional resistance when the push rod 330 moves.

[0074] Specifically, when the push rod 330 extends and retracts under the drive of the drive gear 311, the damping block 3322 inside the second rod portion 3320 extends outward through the third through hole and maintains contact with the inner wall of the drive box 310. When the meshing clearance of the gear and rack 3301 causes a slight offset or vibration in the push rod 330, sliding friction occurs between the contact surface between the damping block 3322 and the inner wall of the drive box 310, forming dynamic resistance. This resistance continuously acts in the direction of movement of the push rod 330, suppressing the instantaneous displacement change caused by the clearance, and making the meshing state of the rack 3301 and the gear tend to be stable.

[0075] In the above technical solution, the contact surface between the damping block 3322 and the inner wall of the drive box 310 generates sliding friction, forming dynamic resistance. The damping effect buffers the impact force when the push rod 330 extends or retracts, avoiding abnormal noise caused by rigid collision between components, and at the same time reducing the fluctuation of movement speed, making the angle adjustment of the air guide plate 2 more stable and smooth.

[0076] In this application, reference is made to Figure 4 and Figure 7 At least one first annular limiting post 3323 is provided on the side of the second rod 3320 near the second box 313, and the first annular limiting post 3323 abuts against the inner wall of the second box 313.

[0077] The first annular limiting post 3323 can be a circular protrusion extending circumferentially along the side wall of the second rod 3320. It can be integrally formed with the second rod 3320 by injection molding or insert method, or it can be made of nylon or reinforced plastic and bonded to the second rod 3320. The first annular limiting post 3323 forms a circular line contact with the inner wall of the second housing 313 through an annular contact surface, which is used to constrain the offset of the second rod 3320 in the direction perpendicular to the movement direction of the push rod 330. The second rod 3320 can be a rectangular cross-section rod, and its first edge is provided with a rack 3301 for meshing with the drive gear 311. This rod bears the lateral force from the gear transmission during the movement of the push rod 330.

[0078] Specifically, during the movement of push rod 330, the annular contact surface of the first annular limiting post 3323 remains in continuous contact with the inner wall of the second housing 313. When the drive gear 311 drives push rod 330 through rack 3301, the axial extension feature of the annular protrusion structure of the first annular limiting post 3323 can prevent push rod 330 from displacing along the length of housing 1 within drive housing 310. The first annular limiting post 3323 can form a lateral limiting engagement with the second housing 313, limiting excessive offset of push rod 330 towards the second housing 313 during movement, avoiding misalignment between rack 3301 and drive gear 311, effectively compensating for the shortcomings of the single limiting method of guide roller, ensuring that rack 3301 and gear are always in the preset meshing position, and avoiding increased clearance or jamming caused by offset.

[0079] In this application, reference is made to Figure 5 and Figure 6 At least one second annular limiting post 3312 is provided on the side of the first rod portion 3310 near the first box body 312, and the second annular limiting post 3312 abuts against the inner wall of the first box body 312.

[0080] Specifically, the structure of the second annular limiting post 3312 is the same as that of the first annular limiting post 3323. It can be integrally formed with the first rod 3310 by injection molding or metal insert. Alternatively, it can be bonded to the first rod 3310 using nylon or reinforced plastic material.

[0081] Specifically, during the movement of push rod 330, the annular contact surface of the second annular limiting post 3312 remains in continuous contact with the inner wall of the first housing 312. When the drive gear 311 drives push rod 330 through rack 3301, the axial extension feature of the annular protrusion structure of the second annular limiting post 3312 can prevent push rod 330 from displacing along the length of housing 1 within drive housing 310. The second annular limiting post 3312 can form a lateral limiting engagement with the first housing 312, limiting excessive offset of push rod 330 towards the first housing 312 during movement, avoiding misalignment between rack 3301 and drive gear 311, effectively compensating for the shortcomings of the single limiting method of guide roller, ensuring that rack 3301 and gear are always in the preset meshing position, and avoiding increased fit clearance or jamming caused by offset.

[0082] In this application, reference is made to Figure 4 , Figure 5 , Figure 8 and Figure 9 The drive box 310 is also provided with a mounting part 360; the mounting part 360 is provided with a fourth guide roller 370, which rolls against the lower edge of the second connecting rod 332.

[0083] For example, the mounting part 360 is a structure provided inside the drive box 310 for fixing the fourth guide roller 370. Its position corresponds to the lower edge of the second connecting rod 332, providing mounting space for the fourth guide roller 370. The fourth guide roller 370 can be implemented using a bearing or a roller structure with balls. Its axis is perpendicular to the movement direction of the push rod 330, and it applies a supporting force to the lower edge of the second connecting rod 332 through rolling contact. The fourth guide roller 370 and the first guide roller 320 can be symmetrically arranged to jointly clamp and guide the second connecting rod 332.

[0084] Specifically, when the push rod 330 extends and retracts under the drive of the drive gear 311, the lower edge of the second connecting rod 332 rolls in contact with the fourth guide roller 370, while the upper edge rolls in contact with the first guide roller 320. The fourth guide roller 370 provides an upward constraint on the lower edge of the second connecting rod 332, and the first guide roller 320 provides a downward constraint on the upper edge of the second connecting rod 332. Together, they restrict the vertical displacement of the second connecting rod 332. This ensures that the push rod 330 maintains horizontal linear motion during its movement, avoiding an increase in the meshing clearance between the gear and rack 3301 due to unilateral limiting, thereby eliminating the risk of jamming during transmission.

[0085] In this application, see Figure 2- Figure 10 The drive assembly 3 also includes a first drive motor 380, which can be implemented using a micro stepper motor or a servo motor. A connector 210 is provided on the side of the air guide plate 2 near the housing 1. The first drive motor 380 is mounted on the end of the second connecting rod 332 near the air guide plate 2, and the output shaft of the first drive motor 380 is connected to the connector 210. The first drive motor 380 drives the connector 210 to rotate, and the connector 210 drives the air guide plate 2 to rotate, so that the air guide plate 2 can flip relative to the housing 1.

[0086] For example, refer to Figures 1-3 The air guide plate 2 includes an inner surface facing the inside of the housing 1 and an outer surface opposite to the inner surface. When the air guide plate 2 is in the closed air outlet state, the inner surface faces the inside of the housing 1, and the outer surface faces the outside. The connector 210 is connected to the inner surface of the air guide plate 2. The air guide plate 2 can be made of plastic and has a long plate-like structure. The length of the air guide plate 2 is adapted to the extension length of the air outlet. In a cross-section parallel to the thickness direction of the housing 1, the projection of the air guide plate 2 in the cross-section can be arc-shaped. The end of the connector 210 connected to the air guide plate 2 is also set to an arc shape adapted to the air guide plate 2.

[0087] Specifically, the first drive motor 380 is configured such that its first end is rigidly connected to the second connecting rod 332, and its second end is linked to the air guide plate 2 via the connecting piece 210. When the first drive motor 380 starts, its output shaft acts on the connecting piece 210 to achieve the rotation angle of the air guide plate 2.

[0088] In this application, the first drive motor 380 can directly provide precise power for the rotation of the air guide plate 2. With the long stroke support of the push rod 330, the air guide plate 2 can not only achieve basic angle adjustment by extending and retracting the push rod 330, but also complete a larger rotation movement with the help of the motor drive, so as to more easily meet the needs of diverse wind patterns such as carpet wind and canopy wind.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0090] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: A housing, wherein an air duct is formed inside the housing, and an air inlet and an air outlet communicating with the air duct are provided on the housing; An air guide plate, which rotates relative to the housing to open or close the air outlet; A drive assembly for driving the air guide plate to move relative to the housing, the drive assembly comprising: A drive box, wherein a drive gear is rotatably connected inside the drive box; The first guide roller is rotatably connected to the inner wall of the drive box; A push rod, movably disposed within the drive box, moves between a first position extending out of the drive box and a second position retracting into the drive box to drive the air guide plate; the push rod includes: A first connecting rod has a rack on its first edge, the rack extending from one end near the air inlet toward the air outlet. A drive gear drives the push rod to move through the rack. A clearance groove is provided on the first connecting rod, the clearance groove being used to cooperate with the first guide roller; wherein the opening of the clearance groove faces the first guide roller. The second connecting rod has a first end connected to the air guide plate, a second end connected to the second edge of the first connecting rod, and a first guide roller rotatably connected to the upper edge of the second connecting rod. When the push rod moves from the second position to the first position, the end of the second connecting rod near the air guide plate extends out of the drive box and gradually moves away from the drive box. The clearance groove gradually approaches the first guide roller until the first guide roller enters the clearance groove from the opening.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The drive box includes: A first housing has a first mounting cavity inside, and the first guide roller is mounted in the first mounting cavity; the first housing has an opening on the side near the air guide plate, and the second connecting rod passes through the opening and is located in the first mounting cavity; The second housing is disposed opposite to the first housing, and the second housing has a second mounting cavity inside.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The depth of the first mounting cavity is greater than the depth of the second mounting cavity; The first connecting rod includes: The first rod portion is located within the first mounting cavity; The second rod portion is disposed on the side of the first rod portion near the second housing body. At least part of the second rod portion is located in the first mounting cavity, and another part of the second rod portion is located in the second mounting cavity. The rack is disposed on the first edge of the second rod portion. A guide groove is provided on the second rod portion, and the extending direction of the guide groove is parallel to the movement direction of the push rod; A limiting post is provided on the inner wall of the second box, and the limiting post is slidably connected in the guide groove.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, A cavity is formed between the first rod portion and the second rod portion; A first through hole is provided on the first edge of the first rod portion, and the first through hole communicates with the cavity; A second guide roller is provided on the side of the first rod portion near the second rod portion, and the second guide roller at least partially passes through the first through hole and is located outside the cavity; A first platform is provided inside the first box, and the extension direction of the first platform is parallel to the movement direction of the push rod. The second guide roller rolls and acts on the first platform.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The drive assembly also includes a third guide roller; A second through hole is provided on the third edge of the first connecting rod, the third edge being disposed opposite to the first edge, and the second through hole communicating with the cavity; The third guide roller is installed inside the cavity, and the third guide roller at least partially protrudes through the second through hole and is located outside the cavity. The third guide roller is rotatably connected to the inner wall of the drive box.

6. The indoor unit of the air conditioner according to claim 4, characterized in that, A third through hole communicating with the cavity is provided on the side of the second rod near the second box body, and a damping block is installed in the cavity; The damping block extends at least partially through the third through hole and is located outside the cavity.

7. The indoor unit of the air conditioner according to claim 3, characterized in that, At least one first annular limiting post is provided on the side of the second rod near the second box body, and the first annular limiting post abuts against the inner wall of the second box body.

8. The indoor unit of the air conditioner according to claim 3, characterized in that, At least one second annular limiting post is provided on the side of the first rod near the first box body, and the second annular limiting post abuts against the inner wall of the first box body.

9. The indoor unit of the air conditioner according to any one of claims 1-8, characterized in that, The drive box also includes a mounting section; The mounting section is provided with a fourth guide roller, which rolls against the lower edge of the second connecting rod.

10. The indoor unit of the air conditioner according to any one of claims 1-8, characterized in that, The drive assembly also includes a first drive motor; The air guide plate is provided with a connector on the side near the housing. The first drive motor is installed on the end of the second connecting rod near the air guide plate. The output shaft of the first drive motor is connected to the connector. The first drive motor is used to drive the connector to rotate, and the connector drives the air guide plate to rotate so that the air guide plate can flip relative to the housing.

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