An air conditioner

Abstract

The present invention provides an air conditioner, relating to the technical field of air conditioning. The air conditioner comprises a middle frame, a drive module, and an air guide door. An air outlet is provided on the bottom side of the middle frame, and a clearance hole is formed in the middle frame. The clearance hole is located above the air outlet. One end of the drive module extends out of the clearance hole. The air guide door is transmission-connected to the portion of the drive module extending out of the clearance hole and can rotate relative to the middle frame under the drive module to open or close the air outlet. Compared to the prior art, the air conditioner provided by the present invention can drive the exposed air guide door, has good applicability, and avoids the need for an air guide bracket to affect the air outlet, thereby ensuring the air outlet effect.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner. Background Art

[0002] Current wall-mounted air conditioners often use a single damper structure. The damper's drive mechanism is typically mounted inside the middle frame, while the damper's drive bracket extends from the air outlet into the middle frame, connecting to the drive mechanism to drive the damper. This drive method, on the one hand, cannot drive the damper when it's exposed, meaning it's not suitable for situations where the damper's shaft is outside the middle frame, resulting in poor applicability. On the other hand, the drive bracket extending into the air outlet to achieve the drive connection undoubtedly affects the airflow at the outlet, affecting the airflow quality. Summary of the Invention

[0003] The problem solved by the present invention is how to drive the exposed air guide door and prevent the driving bracket from affecting the air outlet effect.

[0004] To solve the above problems, the present invention adopts the following technical solutions.

[0005] In one aspect, the present invention provides an air conditioner, comprising a middle frame, a drive module and an air guide door, wherein an air outlet is provided on the bottom side of the middle frame, the drive module is arranged on the inner side of the middle frame, and a clearance hole is also provided on the middle frame, wherein the clearance hole is located on the upper side of the air outlet, one end of the drive module extends out of the clearance hole, and the air guide door is transmission-connected to the part of the drive module extending out of the clearance hole, and can rotate relative to the middle frame under the drive of the drive module to open or close the air outlet.

[0006] The air conditioner provided by the present invention has a clearance hole formed on the middle frame, and one end of the drive module extends out of the clearance hole. The air guide door is transmission-connected to the protruding portion of the drive module, and the air guide door can rotate relative to the middle frame under the drive module to open or close the air outlet. The extension of the drive module enables the exposed air guide door to be driven. At the same time, the clearance hole is located above the air outlet, avoiding the need for an additional air guide door bracket and preventing the air guide door bracket from extending into the air outlet and affecting the air outlet effect. Compared with the prior art, the air conditioner provided by the present invention can achieve the driving of the exposed air guide door, has good applicability, and can avoid the need for the air guide bracket to affect the air outlet effect, thereby ensuring the air outlet effect.

[0007] Furthermore, the air guide door includes an air guide main board and an air guide shaft. The air guide shaft is arranged on one side edge of the air guide main board, and the air guide shaft is transmission-connected to the portion of the driving module extending out of the clearance hole.

[0008] The air conditioner provided by the present invention sets the air guide shaft on one side edge of the air guide main board, and enables the driving module to drive the air guide main board to open or close the air outlet through the air guide shaft, so that the rotation angle of the air guide door is larger, the control effect of the air guide door is optimized, different air outlet angles are achieved, and the user experience is improved.

[0009] Furthermore, the wind guide shaft includes a rotating drum and a shaft body, the driving module is transmission-connected to the shaft body, and the rotating drum is fixedly arranged outside the shaft body and connected to the wind guide main board.

[0010] The air conditioner provided by the present invention realizes transmission by arranging a rotating drum and a shaft body, so that the transmission effect between the driving module and the shaft body is better, and the material of the air guide door can be further saved, thereby achieving the effect of weight reduction.

[0011] Furthermore, the rotating drum includes a first half-axle drum and a second half-axle drum, the first half-axle drum is connected to the air guide main board, the shaft body is arranged on the inner side of the first half-axle drum, and the second half-axle drum is clamped on the first half-axle drum.

[0012] The air conditioner provided by the present invention completes the setting of the fixed shaft body by mutually clamping the half-shaft cylinders, which facilitates the installation and setting of the shaft body, so that the shaft body, the first half-shaft cylinder and the second half-shaft cylinder can be manufactured separately, reducing the difficulty of molding.

[0013] Furthermore, a shaft groove is provided on the outer side of the middle frame, the shaft groove is located on the upper side of the air outlet, the clearance hole is connected to the shaft groove, and the air guide shaft is rotatably assembled in the shaft groove.

[0014] The air conditioner provided by the present invention realizes the bearing and accommodation of the air guide shaft by setting a shaft groove, thereby ensuring the flatness of the air conditioner appearance. The shaft groove can also realize the positioning of the air guide shaft, which facilitates the accurate assembly of the air guide shaft with the drive module during assembly.

[0015] Furthermore, a bearing bracket is provided in the middle of the shaft groove, and the bearing bracket is rotatably connected to the air guide shaft.

[0016] The air conditioner provided by the present invention can play a role in supporting the middle part of the air guide shaft by arranging the bearing bracket, thereby avoiding the situation in which the middle part is deformed and the rotation is blocked.

[0017] Furthermore, a panel is provided on the outer side of the middle frame. The panel is located on the upper side of the rotation groove and extends to the upper edge of the rotation groove.

[0018] The air conditioner provided by the present invention can avoid interference between the panel and the air guide door by setting a panel, and the panel extends to the upper edge of the rotating groove, and makes the overall appearance of the outer side of the middle frame more flat when the air guide door closes the air outlet, thereby avoiding the rotating part of the air guide door from protruding too much on the middle frame.

[0019] Furthermore, the drive module includes a drive box, a motor and a gear set. The drive box is arranged on the inner side of the middle frame and partially extends out of the clearance hole. The gear set is arranged in the drive box. The air guide door is transmission connected to the gear set. The motor is arranged on the drive box and is transmission connected to the gear set.

[0020] The air conditioner provided by the present invention completes power transmission through the gear set and the transmission member, and the air guide door is connected to the transmission member, which simplifies the assembly process and ensures smooth power transmission.

[0021] Furthermore, the drive box includes an integrally arranged transmission part and a drive part, the transmission part is arranged on the inner side of the middle frame, the drive part extends out of the clearance hole, the motor is arranged on the transmission part, the gear set includes a driving gear, a first transmission gear and a second transmission gear, the driving gears are arranged in the transmission part in meshing with each other, the driving gear is connected to the output shaft of the motor, the second transmission gear is arranged in the driving part, and the transmission member is connected to the second transmission gear.

[0022] The air conditioner provided by the present invention realizes power transmission through the driving gear, the first transmission gear and the second transmission gear, thereby ensuring the stability of power transmission, and can make the positions of the motor and the transmission member far apart, so that the motor can be installed in a larger space inside the middle frame, which is conducive to the smooth installation of the motor.

[0023] Furthermore, a transmission member is provided on the portion of the drive box extending out of the clearance hole, the transmission member is in transmission connection with the gear set, and the air guide door is in transmission connection with the transmission member.

[0024] Furthermore, a mounting plate is provided at the end of the middle frame, a mounting slot is provided on the mounting plate, the driving module is accommodated in the mounting slot and extends out of the clearance hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of an air conditioner provided by a first embodiment of the present invention at a first viewing angle;

[0026] Figure 2 A schematic cross-sectional view of an air conditioner according to a second embodiment of the present invention;

[0027] Figure 3A schematic structural diagram of the air conditioner provided by the first embodiment of the present invention at a second viewing angle;

[0028] Figure 4 A schematic diagram of the exploded structure of an air conditioner provided in accordance with a second embodiment of the present invention;

[0029] Figure 5 for Figure 4 Schematic diagram of the structure of the middle air guide door;

[0030] Figure 6 for Figure 4 Schematic diagram of the assembly structure of the middle drive module;

[0031] Figure 7 for Figure 4 Schematic diagram of the decomposition structure of the driver module;

[0032] Figure 8 A schematic structural diagram of an air conditioner provided in accordance with a second embodiment of the present invention;

[0033] Figure 9 for Figure 8 Schematic diagram of the assembly structure of the drive module.

[0034] Description of reference numerals:

[0035] 100-air conditioner; 110-middle frame; 111-rotating shaft groove; 113-support bracket; 115-mounting plate; 117-mounting slot; 130-drive module; 131-drive box; 1311-transmission unit; 1313-drive unit; 1315-mounting unit; 133-motor; 135-gear set; 1351-drive gear; 1353-first transmission gear; 1355-second transmission gear; 150-air guide door; 151-air guide main board; 153-air guide shaft; 155-rotating drum; 1551-first half-axle drum; 1553-second half-axle drum; 157-shaft body; 170-air outlet; 171-clearance hole; 190-panel; 210-base; 230-air guide plate. DETAILED DESCRIPTION

[0036] As disclosed in the background, conventional air dampers for wall-mounted air conditioners typically employ a single damper structure. This damper is positioned above or below the air outlet and connected to an internal drive electrode via a damper bracket. This bracket typically extends into the air outlet. Because the damper bracket is positioned above the air path, it inevitably interferes with airflow, impacting airflow efficiency. Furthermore, when a dual damper structure is employed, with one damper positioned outside the midframe, existing drive motors are unable to drive the outer damper, resulting in poor applicability.

[0037] To address the above-mentioned problems, the present invention provides a novel air conditioner and air conditioner that can drive an outer air guide door and avoids the conventional method of extending the air guide door bracket into the air outlet, thereby preventing the air guide door bracket from affecting the air outlet effect. To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings.

[0038] First embodiment

[0039] See also Figures 1 to 5 This embodiment provides an air conditioner 100, which adopts a structure in which the air guide door 150 is exposed, and can drive the exposed air guide door 150, while avoiding the use of a conventional driving bracket extending into the air outlet 170 to complete power transmission, thereby avoiding the driving bracket affecting the air outlet effect.

[0040] The air conditioner 100 provided in this embodiment includes a middle frame 110, a drive module 130 and an air guide door 150. An air outlet 170 is provided on the bottom side of the middle frame 110. The drive module 130 is arranged on the inner side of the middle frame 110, and a clearance hole 171 is also opened on the middle frame 110. The clearance hole 171 is located on the upper side of the air outlet 170. One end of the drive module 130 extends out of the clearance hole 171. The air guide door 150 is transmission-connected to the part of the drive module 130 extending out of the clearance hole 171, and can rotate relative to the middle frame 110 under the drive of the drive module 130 to open or close the air outlet 170.

[0041] In this embodiment, the air conditioner 100 is a wall mounted unit, wherein the middle frame 110 is mounted on a base 210, which is mounted on a wall via a mounting plate. The specific structure of the wall mounted unit can be referenced to existing wall mounted units. Specifically, the wall mounted unit in this embodiment can employ a double-door structure, i.e., an air guide plate 230 is further disposed below the air outlet 170. The specific structure of the air guide plate 230 is consistent with that of a conventional wall mounted unit and will not be further described here. By actuating the air guide door 150 and the air guide plate 230, the air outlet angle can be adjusted to various angles, thereby extending the adjustable air outlet range of the wall mounted unit.

[0042] It should be noted that the inner side of the middle frame 110 in this embodiment refers to the side of the middle frame 110 that is closer to the internal fan. The driving module 130 in this embodiment is arranged at the outer end of the base 210. The middle frame 110 is arranged on the base 210 and is covered on the outside of the driving module 130, so that the driving module 130 can extend from the inside to the outside of the middle frame 110 to achieve driving.

[0043] The air conditioner 100 provided in this embodiment has a clearance hole 171 formed on the middle frame 110, and one end of the driving module 130 extends out of the clearance hole 171. The air guide door 150 is in transmission connection with the protruding portion of the driving module 130, and the air guide door 150 can rotate relative to the middle frame 110 under the drive of the driving module 130 to open or close the air outlet 170. The protrusion of the driving module 130 enables the exposed air guide door 150 to be driven. At the same time, the clearance hole 171 is located above the air outlet 170, avoiding the need for an additional air guide door 150 bracket and preventing the air guide door 150 bracket from extending into the air outlet 170 and affecting the air outlet effect. This embodiment can achieve driving of the exposed air guide door 150, has good applicability, and can avoid the need for an air guide bracket to affect the air outlet effect, thereby ensuring the air outlet effect.

[0044] In this embodiment, air outlet 170 is located on the lower side of middle frame 110 and is formed by base 210 and middle frame 110. Its specific shape and structure are consistent with air outlet 170 of a conventional wall-mounted air conditioner. Air guide door 150 is rotatably disposed at the upper edge of air outlet 170 and rotates relative to middle frame 110 under the drive module 130, thereby opening or closing air outlet 170 and adjusting the air flow.

[0045] In this embodiment, the shape of the air guide door 150 matches the shape of the air outlet 170, so that when the air guide door 150 is closed, it can completely cover the air outlet 170 to ensure a sealing effect.

[0046] It should be noted that in this embodiment, there are two drive modules 130. The two drive modules 130 are respectively arranged on the inner side of the middle frame 110 near the two ends of the air outlet 170, and two clearance holes 171 are provided on the middle frame 110. The two clearance holes 171 are respectively arranged near the two ends of the air outlet 170. The two drive modules 130 are respectively connected to the two ends of the air guide door 150, and the two drive modules 130 can achieve synchronous driving to drive the air guide door 150 to rotate. Of course, in other preferred embodiments of the present invention, a single drive module 130 can also be used here. The single drive module 130 is connected to one end of the air guide door 150, and the other end of the air guide door 150 is rotatably connected to the middle frame 110 through a structure such as a bushing or a shaft sleeve, which can also achieve the driving of the air guide door 150.

[0047] In this embodiment, the air guide door 150 includes an air guide main plate 151 and an air guide shaft 153. The air guide shaft 153 is disposed on a side edge of the air guide main plate 151 and is in driving connection with the portion of the drive module 130 that extends out of the clearance hole 171. By disposing the air guide shaft 153 on a side edge of the air guide main plate 151 and allowing the drive module 130 to drive the air guide main plate 151 via the air guide shaft 153 to open or close the air outlet 170, the air guide door 150 can rotate at a greater angle, optimizing the control effect of the air guide door 150, achieving different air outlet angles, and improving the user experience.

[0048] In this embodiment, the air guide shaft 153 is located on the outer surface of the middle frame 110, and rotates under the drive of the driving module 130, thereby driving the air guide main board 151 to rotate relative to each other. In this embodiment, the limit position of the downward rotation of the air guide main board 151 reaches the position where it fits the periphery of the air outlet 170, and the limit position of the upward rotation of the air guide main board 151 can reach the horizontal position, wherein the limit position of the upward rotation of the air guide main board 151 can be determined according to the limiting structure on the middle frame 110 or the driving range of the driving module 130.

[0049] The air guide shaft 153 includes a rotating drum 155 and a shaft 157. The drive module 130 is in driving connection with the shaft 157. The rotating drum 155 is fixedly mounted outside the shaft 157 and connected to the air guide main plate 151. Specifically, the rotating drum 155 is positioned along the upper edge of the air guide main plate 151. The shaft 157 is fixedly connected to the rotating drum 155 and exposed on the rotating drum 155. The drive module 130 is connected to the exposed portion of the shaft 157 to achieve power transmission. The arrangement of the rotating drum 155 and the shaft 157 improves the transmission efficiency between the drive module 130 and the shaft 157, further reduces the material of the air guide door 150, and achieves a weight reduction.

[0050] In this embodiment, the rotating cylinder 155 comprises a first semi-cylinder 1551 and a second semi-cylinder 1553. The first semi-cylinder 1551 is connected to the air guide main plate 151. The shaft 157 is disposed inside the first semi-cylinder 1551, and the second semi-cylinder 1553 is snap-fitted to the first semi-cylinder 1551. Specifically, the shaft 157 is fixedly mounted inside the end of the first semi-cylinder 1551 and exposed outside the second semi-cylinder 1553. The first semi-cylinder 1551 is integrally mounted on the upper edge of the air guide main plate 151. The second semi-cylinder 1553 is provided with a snap-fit, which snaps onto the first semi-cylinder 1551, forming a complete cylindrical structure. The setting of the fixed shaft body 157 is achieved through the first semi-axle cylinder 1551, which facilitates the installation and setting of the shaft body 157. At the same time, the shaft body 157, the first semi-axle cylinder 1551 and the second semi-axle cylinder 1553 can be manufactured separately, reducing the difficulty of molding.

[0051] In this embodiment, a shaft groove 111 is further provided on the outer side of the middle frame 110. The shaft groove 111 is located on the upper side of the air outlet 170, and the clearance hole 171 is connected to the shaft groove 111. The air guide shaft 153 is rotatably assembled in the shaft groove 111. Specifically, the shaft groove 111 is located at the upper edge of the air outlet 170 and is recessed inward. The rotating drum 155 is partially accommodated in the shaft groove 111. By providing the shaft groove 111, the air guide shaft 153 is supported and accommodated, ensuring the flush appearance of the air conditioner 100. The shaft groove 111 also allows the air guide shaft 153 to be positioned, facilitating accurate assembly of the air guide shaft 153 with the drive module 130 during assembly.

[0052] In this embodiment, the cross-section of the shaft groove 111 is arc-shaped, preferably, semicircular, and the size of the shaft groove 111 is adapted to the size of the drum 155, so that the drum 155 can rotate freely within the shaft groove 111. Of course, to ensure that the air guide shaft 153 can be smoothly installed in the shaft groove 111, the opening width of the shaft groove 111 should be greater than the width of the air guide shaft 153.

[0053] In this embodiment, a support bracket 113 is further provided in the middle portion of the shaft groove 111. The support bracket 113 is rotatably connected to the air guide shaft 153. Specifically, the support bracket 113 can be fixedly mounted on the middle frame 110. By providing the support bracket 113, the middle portion of the air guide shaft 153 can be supported, thereby preventing the middle portion from deforming and causing rotational obstruction.

[0054] In this embodiment, a panel 190 is further provided on the outside of the middle frame 110. The panel 190 is located above the rotation groove and extends to the upper edge of the rotation groove. The provision of the panel 190, which extends to the upper edge of the rotation groove, prevents interference between the panel 190 and the air guide door 150. This also creates a more flush overall appearance for the outside of the middle frame 110 when the air guide door 150 closes the air outlet 170, preventing the rotating portion of the air guide door 150 from protruding excessively from the middle frame 110.

[0055] See also Figure 6 and Figure 7The drive module 130 includes a drive box 131, a motor 133, and a gear set 135. The drive box 131 is disposed inside the middle frame 110 and partially extends out of the clearance hole 171. The gear set 135 is disposed within the drive box 131, and a transmission member is disposed on the portion of the drive box 131 extending out of the clearance hole 171. The transmission member is in transmission connection with the gear set 135, and the air guide door 150 is in transmission connection with the transmission member. The motor 133 is disposed on the drive box 131 and in transmission connection with the gear set 135. Specifically, the transmission member is in transmission connection with the air guide shaft 153, and power is transmitted through the gear set 135 and the transmission member. The air guide door 150 is connected to the transmission member, which simplifies the assembly process and ensures smooth power transmission.

[0056] In this embodiment, the motor 133 is a stepper motor 133. The drive box 131 is located inside the middle frame 110 and is fixedly mounted on the base 210. The fixation here can be achieved by screws or other connecting parts. The output shaft of the motor 133 is inserted into the drive box 131, driving the gear set 135 to operate. The gear set 135 then drives the air guide shaft 153 to rotate through the transmission member. Specifically, the transmission member can be a shaft sleeve structure, one end of which is inserted into the exposed portion of the drive box 131, and the other end protrudes from the drive box 131 and is connected to the shaft 157 in the rotating drum 155, thereby realizing power transmission between the transmission member and the air guide shaft 153. Specifically, the transmission member can be provided with a hexagonal hole, and the end of the shaft 157 is hexagonal columnar. The shaft 157 is inserted into the hexagonal hole, thereby ensuring that the shaft 157 and the transmission member are fixed as a whole in the direction of rotation.

[0057] The drive box 131 includes an integral transmission portion 1311 and a drive portion 1313. The transmission portion 1311 is located inside the middle frame 110, with the drive portion 1313 extending out of the clearance hole 171. The motor 133 is mounted on the transmission portion 1311. The gear set 135 includes a drive gear 1351, a first transmission gear 1353, and a second transmission gear 1355. The drive gear 1351 and the first transmission gear 1353 are disposed on the transmission portion 1311 and mesh with each other. The drive gear 1351 is connected to the output shaft of the motor 133. The second transmission gear 1355 is disposed on the drive portion 1313, and the transmission member is connected to the second transmission gear 1355. Power transmission is achieved through the drive gear 1351, the first transmission gear 1353, and the second transmission gear 1355, ensuring stable power transmission and allowing the motor 133 and the transmission member to be positioned farther apart, allowing the motor 133 to be installed in a larger space inside the middle frame 110, facilitating smooth installation of the motor 133.

[0058] In this embodiment, the drive box 131 is a split structure, which is combined by connecting parts such as snaps to form an integrated transmission part 1311 and a drive part 1313. The size of the drive part 1313 should be smaller than the size of the clearance hole 171 on the middle frame 110, so that the drive part 1313 can extend from the clearance hole 171 during actual assembly. The second transmission gear 1355 is rotatably disposed in the drive part 1313 and realizes transmission with the drive gear 1351 through the first transmission gear 1353. Specifically, the size of the drive gear 1351 should be larger than the size of the first transmission gear 1353 and the second transmission gear 1355, so that even if the speed of the stepping motor 133 is low, the air guide door 150 can be quickly rotated.

[0059] Of course, in other preferred embodiments of the present invention, the sizes of the driving gear 1351, the first transmission gear 1353 and the second transmission gear 1355 can also be the same, that is, the size and number of teeth of the three are the same, so that the transmission ratio is 1, reducing the space occupied by the drive box 131 in the air conditioner.

[0060] Furthermore, the drive box 131 here also includes a mounting portion 1315 integrally provided on the outer side of the transmission portion 1311 . The mounting portion 1315 has a plurality of studs, and the drive box 131 can be fixed to the base 210 through the plurality of studs.

[0061] In summary, this embodiment provides an air conditioner 100. By providing a clearance hole 171 on the middle frame 110 and allowing one end of the drive module 130 to extend out of the clearance hole 171, the air guide door 150 is transmission-connected to the protruding portion of the drive module 130. The air guide door 150 can rotate relative to the middle frame 110 under the drive module 130 to open or close the air outlet 170. The extension of the drive module 130 enables the exposed air guide door 150 to be driven. At the same time, the clearance hole 171 is located above the air outlet 170, avoiding the need for an additional air guide door 150 bracket and preventing the air guide door 150 bracket from extending into the air outlet 170 and affecting the air outlet effect. This embodiment can achieve driving of the exposed air guide door 150, has good applicability, and can avoid the need for an air guide bracket to affect the air outlet effect, thereby ensuring the air outlet effect.

[0062] Second embodiment

[0063] See also Figure 8 and Figure 9 This embodiment provides an air conditioner 100, whose basic structure, principle and technical effects are the same as those of the first embodiment. For the sake of brief description, for parts not mentioned in this embodiment, please refer to the corresponding content in the first embodiment.

[0064] The air conditioner 100 provided in this embodiment includes a middle frame 110, a drive module 130 and an air guide door 150. An air outlet 170 is provided on the bottom side of the middle frame 110. The drive module 130 is arranged on the outside of the end of the middle frame 110, and a clearance hole 171 is also opened on the middle frame 110. The clearance hole 171 is located on the upper side of the air outlet 170. One end of the drive module 130 extends out of the clearance hole 171. The air guide door 150 is transmission-connected to the part of the drive module 130 extending out of the clearance hole 171, and can rotate relative to the middle frame 110 under the drive of the drive module 130 to open or close the air outlet 170.

[0065] In this embodiment, a mounting plate 115 is integrally provided at the end of the middle frame 110 . A mounting slot 117 is provided on the mounting plate 115 . The driving module 130 is accommodated in the mounting slot 117 and extends out of the clearance hole 171 .

[0066] It should be noted that the outer side of the end of the middle frame 110 here refers to the side of the mounting plate 115 away from the center of the middle frame 110, that is, the outer surface of the mounting plate 115. During actual installation, a decorative plate or panel can also be set on the outer side of the mounting plate to serve as a shield for the driving module 130.

[0067] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the scope defined by the claims.

Claims

1. An air conditioner, characterized in that: The air guide door (150) comprises a middle frame (110), a driving module (130) and an air outlet (170), wherein the bottom side of the middle frame (110) is provided with an air outlet (170), and the middle frame (110) is provided with a clearance hole (171), wherein the clearance hole (171) is located above the air outlet (170), and one end of the driving module (130) extends out of the clearance hole (171), and the air guide door (150) is arranged outside the middle frame (110), and the air guide door (150) is in transmission connection with the portion of the driving module (130) extending out of the clearance hole (171), and can be rotated relative to the middle frame (110) under the drive of the driving module (130) to open or close the air outlet (170); The air guide door (150) includes an air guide main plate (151) and an air guide rotating shaft (153). The air guide rotating shaft (153) is arranged on a side edge of the air guide main plate (151), and the air guide rotating shaft (153) is transmission-connected to the portion of the driving module (130) extending out of the clearance hole (171). The air guide rotating shaft (153) includes a rotating drum (155) and a shaft body (157). The driving module (130) is transmission-connected to the shaft body (157). The rotating cylinder (155) is arranged outside the shaft (157) and is connected to the air guide main board (151); the rotating cylinder (155) includes a first semi-axle cylinder (1551) and a second semi-axle cylinder (1553), the first semi-axle cylinder (1551) is connected to the air guide main board (151), the shaft (157) is arranged on the inner side of the first semi-axle cylinder (1551), and the second semi-axle cylinder (1553) is clamped on the first semi-axle cylinder (1551); The driving module (130) comprises a driving box (131), a motor (133) and a gear set (135); the driving box (131) is arranged on the inner side of the middle frame (110) and partially extends out of the clearance hole (171); the gear set (135) is arranged in the driving box (131) and is transmission-connected to the air guide door (150); the motor (133) is arranged on the driving box (131) and is transmission-connected to the gear set (135).

2. The air conditioner according to claim 1, characterized in that A bearing bracket (113) is further provided in the middle of the middle frame (110), and the bearing bracket (113) is rotatably connected to the air guide shaft (153).

3. The air conditioner according to claim 1, characterized in that A panel (190) is further provided on the outer side of the middle frame (110), and the panel (190) is located on the upper side of the air outlet (170).

4. The air conditioner according to claim 1, wherein: The drive box (131) includes an integrally arranged transmission part (1311) and a drive part (1313), wherein the transmission part (1311) is arranged on the inner side of the middle frame (110), and the drive part (1313) extends out of the clearance hole (171). The motor (133) is arranged on the transmission part (1311), and the gear set (135) includes a driving gear (1351), a first transmission gear (1353) and a second transmission gear (1355). The driving gear (1351) and the first transmission gear (1353) are arranged on the transmission part (1311) in a mutually meshing manner, and the driving gear (1351) is connected to the output shaft of the motor (133). The second transmission gear (1355) is arranged on the driving part (1313).

5. The air conditioner according to claim 1, characterized in that The portion of the drive box (131) extending out of the clearance hole (171) is provided with a transmission member, the transmission member is in transmission connection with the gear set (135), and the air guide door (150) is in transmission connection with the transmission member.

6. The air conditioner according to claim 1, characterized in that A mounting plate (115) is provided at the end of the middle frame (110), and a mounting groove (117) is provided on the mounting plate (115). The driving module (130) is accommodated in the mounting groove (117) and extends out of the clearance hole (171).

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