Air guide mechanism and hanging indoor unit

Abstract

The present invention provides an air guide mechanism and a wall mounted indoor unit, which relate to the field of air conditioners. The air guide mechanism includes an air guide door, a first motor, and a transmission assembly. The air guide door includes a main air guide plate and an auxiliary air guide plate. The main air guide plate includes a mounting end that can be mounted on a middle frame, and a free end away from the mounting end. The auxiliary air guide plate is rotatably mounted on the free end of the main air guide plate. The first motor is mounted on the mounting end of the main air guide plate. The input end of the transmission assembly is transmission-connected to the output shaft of the first motor, and the output end of the transmission assembly is transmission-connected to the auxiliary air guide plate. In the air guide mechanism, the auxiliary air guide plate can extend the air guide stroke of the main air guide plate, so the air guide effect of the air guide mechanism can be improved. Moreover, the transmission assembly can be designed to be smaller than the space occupied by the first motor, thereby reducing the resistance and interference to the airflow, and further improving the air guide effect. In addition, the installation position of the first motor is relatively concealed, and the appearance is more beautiful.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air guide mechanism and a wall mounted indoor unit. Background Art

[0002] In the prior art, a wall mounted indoor unit includes a middle frame provided with an air outlet, and an air guide door is installed at the air outlet to guide the direction of air outlet to meet the usage requirements of customers.

[0003] However, the air guide door in the prior art has a relatively limited air guide effect and cannot well meet the usage needs of customers. Summary of the Invention

[0004] The first object of the present invention is to provide an air guide mechanism to solve the technical problem in the prior art that the air guide mechanism of the on-hook indoor unit has a poor air guide effect.

[0005] The air guide mechanism provided by the present invention includes an air guide door, a first motor and a transmission assembly, the air guide door includes a main air guide plate and an auxiliary air guide plate, the main air guide plate includes a mounting end that can be installed on a middle frame, and a free end away from the mounting end; the auxiliary air guide plate is rotatably mounted on the free end of the main air guide plate; the first motor is mounted on the mounting end of the main air guide plate; the input end of the transmission assembly is transmission-connected to the output shaft of the first motor, and the output end of the transmission assembly is transmission-connected to the auxiliary air guide plate.

[0006] The air guide mechanism provided by the present invention can produce the following beneficial effects:

[0007] The air guide mechanism provided by the present invention has a folding air guide door. A first motor drives the auxiliary air guide plate to rotate relative to the main air guide plate via a transmission assembly, thereby enabling the auxiliary air guide plate to be unfolded relative to or folded relative to the main air guide plate. This arrangement allows the auxiliary air guide plate to extend the air guide travel of the main air guide plate, thereby increasing the air guide travel of the air guide door and improving the air guiding effect of the air guide mechanism.

[0008] Moreover, in terms of the structure of the air guide door, the space occupied by the motor is relatively large, but the air guide mechanism provided by the present invention installs the first motor at the mounting end of the main air guide plate and transmits the power through the transmission assembly. Therefore, the transmission assembly can be designed to be smaller than the space occupied by the first motor, thereby reducing the resistance and interference to the airflow about to leave the air guide door, and further improving the air guiding effect.

[0009] In addition, compared with the first motor installed at the free end of the main air guide plate, the air guide mechanism provided by the present invention has the first motor installed at the mounting end of the main air guide plate. The center of gravity of the air guide mechanism is relatively close to the mounting end, and the torque required to drive the air guide door to open or close is relatively small, which is beneficial to reducing energy consumption and improving the stability of driving the air guide door as a whole; and the installation position of the first motor is relatively concealed, and the appearance is more beautiful.

[0010] Furthermore, the transmission assembly includes a transmission shaft, a driving bevel gear and a driven bevel gear; the transmission shaft extends in a direction perpendicular to the rotation axis of the auxiliary air guide plate, and the input end of the transmission shaft is coaxially fixedly connected to the output shaft of the first motor, and the output end of the transmission shaft is coaxially fixedly connected to the driving bevel gear; the driven bevel gear is coaxially fixed to the rotation axis of the auxiliary air guide plate and meshes with the driving bevel gear.

[0011] Under this technical solution, the transmission assembly adopts the structure of active bevel gear and driven bevel gear for transmission. Since the meshing between the gears is relatively stable and accurate, it is conducive to stable and accurate driving of the auxiliary air guide plate.

[0012] Furthermore, the main air guide plate is provided with a accommodating cavity; the transmission shaft is arranged in the accommodating cavity, and the input end of the transmission shaft extends out of the accommodating cavity and is connected to the output shaft of the first motor, and the output end of the transmission shaft extends out of the accommodating cavity and is connected to the active bevel gear.

[0013] Under this technical solution, the accommodating cavity provides an accommodating space for the drive shaft. Moreover, the cavity wall of the accommodating cavity protects the drive shaft from external damage and interference, provides protection for the drive shaft, and ensures the safe and accurate movement of the drive shaft.

[0014] Furthermore, the transmission shaft and the driving bevel gear are an integrated structure.

[0015] Under this technical solution, the active bevel gear is firmly connected to the transmission shaft and the transmission is error-free, which is conducive to accurate and stable transmission of the transmission component.

[0016] Optionally, the driven bevel gear and the rotating shaft of the auxiliary air guide plate are an integrated structure.

[0017] Optionally, the driven bevel gear and the rotating shaft of the auxiliary air deflector are separate structures, and the two are coaxially fixedly connected. Under this technical solution, the manufacture of the auxiliary air deflector is relatively simple.

[0018] Furthermore, the driven bevel gear is provided with a first limiting portion, and the main air guide plate is provided with a second limiting portion, and the second limiting portion matches the first limiting portion to prevent the driven bevel gear from separating from the auxiliary air guide plate.

[0019] Under this technical solution, the driven bevel gear at the output end of the transmission assembly is provided with a first limiting portion, which matches the second limiting portion on the main air guide plate, and can prevent the driven bevel gear from loosening or even detaching from the auxiliary air guide plate, thereby ensuring stable engagement of the driven bevel gear and the active bevel gear, and further ensuring stable drive of the auxiliary air guide plate, making the auxiliary air guide plate less likely to shake.

[0020] Furthermore, the first limiting part includes a connecting rod and a limiting plate, the connecting rod is coaxially fixed with the driven bevel gear, and the limiting plate and the connecting rod are perpendicular to each other and coaxially fixed; the free end of the main air guide plate is provided with a connecting shaft, and the connecting shaft is coaxially arranged with the rotating shaft of the auxiliary air guide plate; the connecting shaft is provided with a through hole and a limiting groove that are interconnected along its axial end, the through hole matches the connecting rod, the limiting groove matches the limiting plate, and the through hole and the limiting groove form the second limiting part; the connecting rod is rotatably arranged in the through hole, and the limiting plate is rotatably arranged in the limiting groove.

[0021] Under this technical solution, the first limiting part adopts the structural form of a connecting rod and a limiting plate, and the second limiting part adopts the structural form of a through hole and a limiting groove. The driven bevel gear is limited in the axial and circumferential directions mainly through the cooperation between the limiting plate and the limiting groove to prevent the driven bevel gear from loosening or even detaching from the auxiliary air guide plate, thereby ensuring continuous and stable engagement between the driven bevel gear and the driving bevel gear.

[0022] Furthermore, the main air guide plate includes an inner lining plate and an appearance plate, the free end of the inner lining plate is provided with a first half hole and a first half groove, and the free end of the appearance plate is provided with a second half hole and a second half groove; the appearance plate is fixedly installed on the inner lining plate, and the second half hole and the first half hole are matched and docked to form the through hole, and the second half groove and the first half groove are matched and docked to form the limiting groove.

[0023] Under this technical solution, when installing the first limiting part, first place it in the half hole and half groove of the inner lining plate or the appearance plate. After the inner lining plate and the appearance plate are assembled, the installation of the first limiting part is also completed, which is very convenient.

[0024] Furthermore, the driven bevel gear and the first limiting portion are an integrated structure.

[0025] Under this technical solution, this setting form can avoid the position error of the driven bevel gear caused by the manufacturing error of the first limiting part and the driven bevel gear and the assembly error, thereby ensuring accurate transmission between the driven bevel gear and the driving bevel gear.

[0026] Furthermore, a mounting seat is fixedly provided at one end of the connecting shaft along its axial direction, and an accommodating space is provided between the mounting seat and the corresponding end portion of the connecting shaft, and the mounting seat is provided with a mounting hole coaxial with the connecting shaft; the driven bevel gear is located in the accommodating space, and the gear shaft of the driven bevel gear is rotatably passed through the mounting hole and fixedly connected to the rotating shaft of the auxiliary air guide plate.

[0027] Under this technical solution, one side of the driven bevel gear along the axial direction is the first limiting part, which is rotatably mounted on the second limiting part; the other side is rotatably mounted on the mounting seat. Both sides are supported, and the movement is smoother.

[0028] Furthermore, the rotating shaft of the auxiliary air guide plate includes a first shaft segment and a second shaft segment, both of which are arranged at one end of the auxiliary air guide plate connected to the main air guide plate, and are respectively located at the two ends of the auxiliary air guide plate along the axial direction; the connecting shaft is located between the first shaft segment and the second shaft segment; one of the first shaft segment and the second shaft segment is rotatably connected to one end of the connecting shaft through the driven bevel gear, and the other is rotatably connected to the other end of the connecting shaft.

[0029] Under this technical solution, both ends of the auxiliary air guide plate are rotatably connected to the main air guide plate, and both ends of the auxiliary air guide plate are supported, which is conducive to the smooth rotation of the auxiliary air guide plate.

[0030] Furthermore, the auxiliary air guide plate is a light plate, or the auxiliary air guide plate is provided with a plurality of air outlet micro holes.

[0031] Furthermore, the air guide mechanism also includes a second motor, which can be installed on the middle frame, and the second motor is used to drive the air guide door to open and close.

[0032] The second object of the present invention is to provide a wall mounted indoor unit to solve the technical problem in the prior art that the air guide mechanism of the wall mounted indoor unit has a poor air guide effect.

[0033] The wall mounted indoor unit provided by the present invention comprises a middle frame and the aforementioned air guide mechanism, wherein the middle frame is provided with an air outlet, and the air guide door of the air guide mechanism is installed at the air outlet. The wall mounted indoor unit has all the advantages of the aforementioned air guide mechanism, so they will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0035] Figure 1 A schematic diagram of the three-dimensional structure of one of the on-hook indoor units provided in an embodiment of the present invention;

[0036] Figure 2 for Figure 1 A magnified schematic diagram of point A in the middle;

[0037] Figure 3 This is a partial bottom view of the structure of the second type of on-hook indoor unit provided by an embodiment of the present invention, wherein the transmission assembly is in an exposed state;

[0038] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle;

[0039] Figure 5 A schematic diagram of the exploded structure of one of the on-hook indoor units provided by an embodiment of the present invention;

[0040] Figure 6 for Figure 5 The enlarged schematic diagram of point C in the middle;

[0041] Figure 7 A schematic structural diagram of a first motor of an air guide mechanism provided in an embodiment of the present invention;

[0042] Figure 8 A schematic structural diagram of a transmission shaft and an active bevel gear of an air guide mechanism provided in an embodiment of the present invention;

[0043] Figure 9 This is a schematic structural diagram of the driven bevel gear of the air guide mechanism provided by an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 100 - air guide door; 110 - main air guide plate; 111 - accommodation chamber; 112 - connecting shaft; 113 - mounting seat; 114 - mounting hole; 116 - first half hole; 117 - first half slot; 118 - inner lining plate; 119 - exterior panel; 120 - auxiliary air guide plate; 121 - first shaft section; 122 - second shaft section;

[0046] 200-first motor;

[0047] 300-transmission assembly; 310-transmission shaft; 320-driving bevel gear; 330-driven bevel gear; 340-first limiting portion; 341-connecting rod; 342-limiting plate;

[0048] 410-Air outlet. DETAILED DESCRIPTION

[0049] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0050] This embodiment provides an air guide mechanism provided by the present invention, such as Figures 1 to 4 As shown, the air guide mechanism includes an air guide door 100, a first motor 200 and a transmission assembly 300. The air guide door 100 includes a main air guide plate 110 and an auxiliary air guide plate 120. The main air guide plate 110 includes a mounting end that can be mounted on the middle frame, and a free end away from the mounting end; the auxiliary air guide plate 120 is rotatably mounted on the free end of the main air guide plate 110; the first motor 200 is mounted on the mounting end of the main air guide plate 110; the input end of the transmission assembly 300 is transmission-connected to the output shaft of the first motor 200, and the output end of the transmission assembly 300 is transmission-connected to the auxiliary air guide plate 120.

[0051] The air guide mechanism provided in this embodiment has a folding air guide door 100. The first motor 200 drives the auxiliary air guide plate 120 to rotate relative to the main air guide plate 110 via the transmission assembly 300, thereby enabling the auxiliary air guide plate 120 to be unfolded relative to or folded relative to the main air guide plate 110. This arrangement allows the auxiliary air guide plate 120 to extend the air guide stroke of the main air guide plate 110, thereby increasing the air guide stroke of the air guide door 100 and improving the air guide effect of the air guide mechanism.

[0052] Moreover, in terms of the structure of the air guide door 100, the space occupied by the motor is relatively large, but the air guide mechanism provided in this embodiment installs the first motor 200 at the installation end of the main air guide plate 110 and transmits the power through the transmission assembly 300. Therefore, the transmission assembly 300 can be designed to be smaller than the space occupied by the first motor 200, thereby reducing the resistance and interference to the airflow about to leave the air guide door 100, and further improving the air guiding effect.

[0053] In addition, compared with the first motor 200 installed at the free end of the main air guide plate 110, the air guide mechanism provided in this embodiment has the first motor 200 installed at the mounting end of the main air guide plate 110. The center of gravity of the air guide mechanism is relatively close to the mounting end, and the torque required to drive the air guide door 100 to open or close is relatively small, which is beneficial to reducing energy consumption and improving the stability of driving the air guide door 100 as a whole; and the installation position of the first motor 200 is relatively concealed, and the appearance is more beautiful.

[0054] Specifically, in this embodiment, Figure 4 、 Figure 5 as well as Figures 7 to 9As shown, the transmission assembly 300 includes a transmission shaft 310, a driving bevel gear 320, and a driven bevel gear 330. The transmission shaft 310 extends perpendicular to the rotation axis of the auxiliary air deflector 120. The input end of the transmission shaft 310 is coaxially fixedly connected to the output shaft of the first motor 200, and the output end of the transmission shaft 310 is coaxially fixedly connected to the driving bevel gear 320. The driven bevel gear 330 is coaxially fixed to the rotation axis of the auxiliary air deflector 120 and meshes with the driving bevel gear 320. In this arrangement, the transmission assembly 300 uses the driving bevel gear 320 and the driven bevel gear 330 for transmission. Since the meshing between the gears is relatively stable and accurate, it facilitates stable and accurate driving of the auxiliary air deflector 120.

[0055] It should be noted here that, in other embodiments of the present application, the transmission assembly 300 is not limited to the structural form of the transmission shaft 310 and the transmission gear, but can also be a belt drive or chain drive structure.

[0056] Specifically, in this embodiment, Figure 6 As shown, combined with Figure 1 and Figure 2 The main air guide plate 110 is provided with a receiving cavity 111; the drive shaft 310 is disposed within the receiving cavity 111. The input end of the drive shaft 310 extends out of the receiving cavity 111 and is connected to the output shaft of the first motor 200. The output end of the drive shaft 310 extends out of the receiving cavity 111 and is connected to the driving bevel gear 320. In this arrangement, the receiving cavity 111 provides space for the drive shaft 310. Furthermore, the walls of the receiving cavity 111 protect the drive shaft 310 from external damage and interference, providing protection for the drive shaft 310 and ensuring its safe and accurate movement.

[0057] Specifically, in this embodiment, Figure 8 As shown, the transmission shaft 310 and the driving bevel gear 320 are integrally formed. This arrangement ensures a secure connection between the driving bevel gear 320 and the transmission shaft 310, ensuring error-free transmission, and facilitating accurate and stable transmission of the transmission assembly 300. Of course, in other embodiments of the present application, the driving bevel gear 320 and the transmission shaft 310 may also be separate structures, with the driving bevel gear 320 coaxially fixedly mounted on the output end of the transmission shaft 310.

[0058] Specifically, in this embodiment, Figure 9 As shown, the driven bevel gear 330 and the rotating shaft of the auxiliary air deflector 120 are separate structures, and the two are coaxially fixedly connected. This arrangement simplifies the manufacture of the auxiliary air deflector 120. Of course, in other embodiments of the present application, the driven bevel gear 330 and the rotating shaft of the auxiliary air deflector 120 can also be an integral structure.

[0059] Specifically, in this embodiment, the driven bevel gear 330 is provided with a first limiting portion 340, and the main air guide plate 110 is provided with a second limiting portion. The second limiting portion matches the first limiting portion 340 to prevent the driven bevel gear 330 from separating from the auxiliary air guide plate 120. In this configuration, the driven bevel gear 330 at the output end of the transmission assembly 300 is provided with the first limiting portion 340, which matches the second limiting portion on the main air guide plate 110. This can prevent the driven bevel gear 330 from loosening or even separating from the auxiliary air guide plate 120, thereby ensuring stable meshing between the driven bevel gear 330 and the driving bevel gear 320, and further ensuring stable driving of the auxiliary air guide plate 120, making the auxiliary air guide plate 120 less likely to vibrate.

[0060] Specifically, in this embodiment, Figure 4 、 Figure 6 and Figure 9 As shown, the first limiting portion 340 includes a connecting rod 341 and a limiting plate 342, the connecting rod 341 is coaxially fixed with the driven bevel gear 330, and the limiting plate 342 and the connecting rod 341 are perpendicular to each other and coaxially fixed; the free end of the main air guide plate 110 is provided with a connecting shaft 112, and the connecting shaft 112 is coaxially arranged with the rotation axis of the auxiliary air guide plate 120; the connecting shaft 112 is provided with a through hole and a limiting groove that are interconnected along its axial end, the through hole matches the connecting rod 341, and the limiting groove matches the limiting plate 342, and the through hole and the limiting groove form a second limiting portion; the connecting rod 341 is rotatably arranged in the through hole, and the limiting plate 342 is rotatably arranged in the limiting groove. Under this setting, the first limiting portion 340 adopts the structural form of a connecting rod 341 and a limiting plate 342, and the second limiting portion adopts the structural form of a through hole and a limiting groove. The driven bevel gear 330 is limited in the axial and circumferential directions mainly through the cooperation between the limiting plate 342 and the limiting groove, preventing the driven bevel gear 330 from loosening or even detaching from the auxiliary air guide plate 120, thereby ensuring continuous and stable engagement between the driven bevel gear 330 and the driving bevel gear 320.

[0061] Specifically, in this embodiment, Figure 5 As shown, combined with Figure 3 The main air guide plate 110 includes an inner lining plate 118 and an outer plate 119. The free end of the inner lining plate 118 is provided with a first half hole 116 and a first half slot 117, while the free end of the outer plate 119 is provided with a second half hole (not shown) and a second half slot (not shown). The outer plate 119 is fixedly mounted to the inner lining plate 118, with the second half hole mating with the first half hole 116 to form a through hole, and the second half slot mating with the first half slot 117 to form a retaining slot. In this arrangement, when installing the first retaining portion 340, it is first placed into the half hole and half slot of the inner lining plate 118 or the outer plate 119. Once the inner lining plate 118 and the outer plate 119 are assembled, the installation of the first retaining portion 340 is also completed, which is very convenient.

[0062] Specifically, in this embodiment, Figure 9 As shown, the driven bevel gear 330 and the first position-limiting portion 340 are integrally formed. This arrangement avoids positional errors in the driven bevel gear 330 caused by manufacturing and assembly errors between the first position-limiting portion 340 and the driven bevel gear 330, thereby ensuring accurate transmission between the driven bevel gear 330 and the driving bevel gear 320. Of course, in other embodiments of the present application, if the tolerances meet operational requirements, the first position-limiting portion 340 and the driven bevel gear 330 may also be separate structures, with the first position-limiting portion 340 coaxially fixedly mounted to the driven bevel gear 330.

[0063] Specifically, in this embodiment, Figure 4 and Figure 6 As shown, a mounting seat 113 is fixedly mounted on one axial end of the connecting shaft 112, with a receiving space defined between the mounting seat 113 and the corresponding end of the connecting shaft 112. The mounting seat 113 is provided with a mounting hole 114 coaxial with the connecting shaft 112. The driven bevel gear 330 is located within the receiving space, and the gear shaft of the driven bevel gear 330 rotatably passes through the mounting hole 114 and is fixedly connected to the rotating shaft of the auxiliary air deflector 120. In this arrangement, one side of the driven bevel gear 330 along the axial direction is a first stopper 340, which is rotatably mounted to the second stopper; the other side is rotatably mounted to the mounting seat 113. Both sides are supported, ensuring smoother movement.

[0064] Specifically, in this embodiment, the rotational axis of the secondary air deflector 120 includes a first shaft segment 121 and a second shaft segment 122, both of which are disposed at the end of the secondary air deflector 120 connected to the main air deflector 110 and located at the right and left ends of the secondary air deflector 120 along the axial direction, respectively. The connecting shaft 112 is located between the first shaft segment 121 and the second shaft segment 122. The first shaft segment 121 is rotatably connected to the right end of the connecting shaft 112 via a driven bevel gear 330, and the second shaft segment 122 is rotatably connected to the left end of the connecting shaft 112. In this arrangement, both ends of the secondary air deflector 120 are rotatably connected to the main air deflector 110, and both ends of the secondary air deflector 120 are supported, which facilitates the smooth rotation of the secondary air deflector 120.

[0065] It should be noted here that, in the present embodiment, the first motor 200 and the transmission assembly 300 are arranged on the right side of the air guide door 100, but in other embodiments of the present application, the first motor 200 and the transmission assembly 300 may also be arranged on the left side of the air guide door 100. In this case, the second shaft segment 122 near the left end of the auxiliary air guide plate 120 is rotatably connected to the left end of the connecting shaft 112 through the driven bevel gear 330, while the first shaft segment 121 near the right end of the auxiliary air guide plate 120 is directly rotatably connected to the right end of the connecting shaft 112.

[0066] Specifically, in this embodiment, the auxiliary air guide plate 120 may be provided with a plurality of air outlet micro holes, such as Figure 1 and Figure 5 As shown, in order to meet the requirements of zero wind feeling and other wind outlet modes. Of course, the auxiliary air guide plate 120 can also be a light plate, such as Figure 3 shown.

[0067] Specifically, in this embodiment, the air guide mechanism further includes a second motor (not shown), which can be mounted on the middle frame and is used to drive the air guide door 100 to open and close. In this configuration, the second motor drives the entire air guide door 100 to open or close, while the first motor 200 and transmission assembly 300 drive the auxiliary air guide plate 120 to expand or fold relative to the main air guide plate 110, thereby meeting different air guide requirements.

[0068] This embodiment also provides a wall mounted indoor unit, such as Figure 1 、 Figure 3 and Figure 5 As shown, the indoor unit includes a middle frame and the above-mentioned air guide mechanism, the middle frame is provided with an air outlet 410, and the air guide door 100 of the air guide mechanism is installed at the air outlet 410. The wall mounted indoor unit has all the advantages of the above-mentioned air guide mechanism, so it is not repeated here.

[0069] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0070] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is to be construed in the widest manner consistent with the principles and novel features disclosed herein.

Claims

1. An air guide mechanism, characterized in that: include: An air guide door (100) comprises a main air guide plate (110) and an auxiliary air guide plate (120), wherein the main air guide plate (110) comprises a mounting end capable of being mounted on a middle frame, and a free end away from the mounting end; and the auxiliary air guide plate (120) is rotatably mounted on the free end of the main air guide plate (110). A first motor (200) is mounted on the mounting end of the main air guide plate (110); and a transmission assembly (300), wherein an input end of the transmission assembly (300) is transmission-connected to an output shaft of the first motor (200), and an output end of the transmission assembly (300) is transmission-connected to the auxiliary air guide plate (120); The transmission assembly (300) comprises a transmission shaft (310), a driving bevel gear (320), and a driven bevel gear (330); The transmission shaft (310) is extended in a direction perpendicular to the rotation axis of the auxiliary air deflector (120), and the input end of the transmission shaft (310) is coaxially fixedly connected to the output shaft of the first motor (200), and the output end of the transmission shaft (310) is coaxially fixedly connected to the active bevel gear (320); The driven bevel gear (330) is coaxially fixed to the rotating shaft of the auxiliary air guide plate (120) and meshes with the driving bevel gear (320); The driven bevel gear (330) is provided with a first limiting portion (340), and the main air guide plate (110) is provided with a second limiting portion, the second limiting portion matching the first limiting portion (340); The main air guide plate (110) comprises an inner lining plate (118) and an outer appearance plate (119), and at least a portion of the transmission assembly (300) is accommodated between the inner lining plate (118) and the outer appearance plate (119).

2. The air guide mechanism according to claim 1, characterized in that: The main air guide plate (110) is provided with an accommodating cavity (111); the transmission shaft (310) is provided in the accommodating cavity (111), and the input end of the transmission shaft (310) extends out of the accommodating cavity (111) and is connected to the output shaft of the first motor (200), and the output end of the transmission shaft (310) extends out of the accommodating cavity (111) and is connected to the active bevel gear (320).

3. The air guide mechanism according to claim 1 or 2, characterized in that: The driven bevel gear (330) and the rotating shaft of the auxiliary air guide plate (120) are an integrated structure.

4. The air guide mechanism according to claim 1 or 2, characterized in that: The driven bevel gear (330) and the rotating shaft of the auxiliary air guide plate (120) are separate structures, and the two are coaxially fixedly connected.

5. The air guide mechanism according to claim 1 or 2, characterized in that: A connecting shaft (112) is provided at the free end of the main air guide plate (110), and the connecting shaft (112) is coaxially arranged with the rotation axis of the auxiliary air guide plate (120); A mounting seat (113) is fixedly provided at one axial end of the connecting shaft (112), and an accommodating space is provided between the mounting seat (113) and the corresponding end of the connecting shaft (112), and the mounting seat (113) is provided with a mounting hole (114) coaxial with the connecting shaft (112); The driven bevel gear (330) is located in the accommodating space, and the gear shaft of the driven bevel gear (330) is rotatably inserted into the mounting hole (114) and fixedly connected to the rotating shaft of the auxiliary air guide plate (120).

6. The air guide mechanism according to claim 5, characterized in that: The rotation axis of the auxiliary air guide plate (120) comprises a first shaft section (121) and a second shaft section (122), both of which are arranged at one end of the auxiliary air guide plate (120) connected to the main air guide plate (110), and are respectively located at two ends of the auxiliary air guide plate (120) along the axial direction; The connecting shaft (112) is located between the first shaft section (121) and the second shaft section (122); one of the first shaft section (121) and the second shaft section (122) is rotatably connected to one end of the connecting shaft (112) through the driven bevel gear (330), and the other is rotatably connected to the other end of the connecting shaft (112).

7. The air guide mechanism according to claim 1 or 2, characterized in that: The auxiliary air guide plate (120) is a light plate, or the auxiliary air guide plate (120) is provided with a plurality of air outlet micro holes.

8. The air guide mechanism according to claim 1 or 2, characterized in that: The air guide mechanism further comprises a second motor, which can be mounted on the middle frame, and the second motor is used to drive the air guide door (100) to open and close.

9. A wall mounted indoor unit, characterized in that: The air guide mechanism comprises a middle frame and the air guide mechanism according to any one of claims 1 to 8, wherein the middle frame is provided with an air outlet (410), and the air guide door (100) of the air guide mechanism is installed at the air outlet (410).

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