air conditioner

Abstract

The present invention relates to the technical field of air conditioners, and particularly to an air conditioner, which comprises an intermediate frame, a ventilator door, a drive mechanism and a latch assembly, the ventilator door comprises an outer guide shaft, the drive mechanism comprises a drive wheel, the outer guide shaft is detachably connected to at least one of the latch assembly and the drive wheel, and the drive wheel can drive the outer guide shaft through the latch assembly to realize the coaxial rotation of the three. In this technical solution, the latch assembly functions as both a connecting part connecting the drive wheel and the outer guide shaft and a transmission part, so that when the drive wheel rotates, power can be transmitted to the outer guide shaft by the latch assembly, thereby realizing the rotation of the ventilator door. The latch assembly can provide a connecting function for the drive wheel and the outer guide shaft, as well as a transmission function, so that the connection and transmission fitting of the drive wheel and the outer guide shaft can be completed at the same time, which facilitates the simplification of the structure of the drive mechanism and improves the problem of the complicated structure of the drive device of the ventilator door in the prior art.

Description

[Technical Field]

[0001] This application claims priority from the following Chinese patent applications, the entire contents of which are incorporated herein by reference: Application date: 2021.08.31 Application number: 202111015969.2 Title: Ventilation door assembly and air conditioner, Application date: November 15, 2021 Application number: 202111350316.X Name: Ventilation device and air conditioner, Application date: 2021.08.31 Application number: 202111013190.7 Name: Indoor unit, Application date: November 15, 2021 Application number: 202111348273.1 Name: Air conditioner shell and air conditioner.

[0002] The present invention relates to the technical field of air conditioning, and more particularly to air conditioners. [Background technology]

[0003] As the demand for air conditioners increases, so do consumer demands for the quality and user experience of air conditioners.

[0004] In the prior art, in order to improve the air guide effect of the air guide door, it is necessary to adjust the installation position of the air guide door, and at the same time, it is necessary to adjust the drive device that drives the air guide door. However, in the prior art, the drive device of the air guide door usually has a complex structure and is difficult to attach and detach. As a result, the assembly efficiency of the air guide door and the drive device is very low, and the drive effect is poor, which affects the air guide effect of the air guide door. Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION In view of the deficiencies of the prior art, the present invention aims to provide an air conditioner that simplifies the structure of the drive device of the air guide door and improves the assembly efficiency of the air guide door and the drive device. [Means for solving the problem]

[0006] In order to solve the above technical problems, the present invention provides an air conditioner, the air conditioner comprising: an intermediate frame; a wind guide door; a drive mechanism; and a latch assembly; The air guide door includes an outer guide shaft, and the outer guide shaft is configured to be rotatably fitted with the intermediate frame; the drive mechanism includes a drive wheel, the drive wheel being configured to rotate and output power; The outer guide shaft is connected to the drive wheel via a latch assembly, and the latch assembly is detachably connected to at least one of the outer guide shaft and the drive wheel, so that the drive wheel can drive the outer guide shaft via the latch assembly to achieve coaxial rotation of the three.

[0007] Compared with the prior art, the air conditioner according to the present invention has the following beneficial effects.

[0008] In this air conditioner, the latch assembly functions as both a connecting component connecting the drive wheel and the outer guide shaft and a transmission component, so that when the drive wheel rotates, the latch assembly can transmit power to the outer guide shaft, thereby realizing rotation of the air guide door. Because the latch assembly provides both a connecting function and a transmission function for the drive wheel and the outer guide shaft, the connection and transmission engagement between the drive wheel and the outer guide shaft can be completed simultaneously, making it easy to simplify the structure of the drive mechanism and solving the problem of the complicated structure of the air guide door drive device in the prior art.

[0009] Therefore, the structure of the drive mechanism is simple, which reduces the difficulty of assembling the drive mechanism and the air guide door and improves the assembly efficiency of the air conditioner. In addition, by assembling the drive wheel, outer guide shaft, and latch assembly so that they rotate coaxially, the coaxial precision of the outer guide shaft, drive wheel, and latch assembly can be improved, which ensures that the air guide door can be rotatably driven during the rotation of the drive wheel, further improving the air guide effect.

[0010] As described above, the air conditioner structure can improve the technical problems in the prior art, such as the complicated structure of the drive mechanism of the air guide door, the low assembly efficiency of the air conditioner, and the poor air guide effect of the air guide door.

[0011] Optionally, the latch assembly is detachably connected to both the outer guide shaft and the drive wheel, thereby reducing the difficulty of assembly and improving assembly efficiency.

[0012] Optionally, the latch assembly comprises a latch and a mounting base, the mounting base is fixedly mounted on the intermediate frame, the latch is mounted on the mounting base and is slidable relative to the mounting base along its axial direction, one end of the latch is fitted to the drive wheel and the other end is fitted to the outer guide shaft, thereby adopting a latch assembly installed between the drive mechanism and the air guide door and a latch that is slidable relative to the mounting base, which simplifies the installation process of the air conditioner, improves installation efficiency, reduces labor and time costs, ensures long-distance transmission effect, and avoids damage to parts.

[0013] Optionally, the latch assembly includes at least one sleeve, and the latch is mounted within the sleeve, which allows the latch to slide more smoothly.

[0014] Optionally, a resilient element may be mounted on the exterior of the latch to facilitate quick attachment and detachment.

[0015] Optionally, a ring base is provided on the periphery of the latch, and one end of the elastic member abuts against the ring base and the other end abuts against the drive mechanism, thereby using the ring base to limit the axial movement of the latch, improving the rotation accuracy of the latch and preventing the latch from being offset or tilted. The latch can slide toward the air guide door by the elastic force of the elastic member until the ring base abuts against the mounting base. This also makes it easier to install the elastic member.

[0016] Alternatively, the latch may be installed coaxially with the outer guide shaft, a transmission hole may be drilled on the end face of the outer guide shaft, and the latch may be inserted into the transmission hole and engaged with the transmission hole, so that the drive mechanism can rotate the outer guide shaft by engaging the latch with the transmission hole, and further rotate the entire air guide door to achieve the function of adjusting the blowing direction.

[0017] Optionally, the latch has a first fitting portion for fitting with the transmission hole, the first fitting portion being polygonal prism-shaped, the transmission hole being a polygonal hole, and the shape of the first fitting portion matching the shape of the transmission hole, thereby preventing the first fitting portion from slipping relative to the transmission hole and improving transmission efficiency.

[0018] Optionally, the mounting base has a positioning portion, a mounting portion and an abutment portion, a stop block and a screw hole are installed on the intermediate frame, the latch is installed in the mounting portion, the abutment portion abuts the stop block, a through hole is drilled in the positioning portion, and the screw hole is fitted with the thread of the through hole, thereby fixing the relative position of the positioning portion and the intermediate frame, further fixing the position of the mounting base, and preventing the mounting base from being displaced relative to the intermediate frame.

[0019] Optionally, an engagement groove is opened in the stop block, and the abutment portion is inserted into the engagement groove and fitted into the engagement groove, thereby the engagement groove can limit the position of the abutment portion, prevent the abutment portion from shaking, and improve the stability of the connection between the mounting base and the intermediate frame.

[0020] Optionally, the mounting portion is annular, and both the positioning portion and the abutment portion are installed on the circumferential surface of the mounting portion, and the line connecting the positioning portion and the axis of the mounting portion and the line connecting the abutment portion and the axis of the mounting portion are installed at a predetermined angle, thereby making it easy to install and fix the mounting base.

[0021] Optionally, the preset angle range is 90° to 150°, which can ensure the strength of the mounting base and facilitate production processing at the same time.

[0022] Optionally, the sleeve is fitted over at least one-fourth of the axial length of the latch, thereby ensuring a sufficient contact area between the sleeve and the latch, allowing the sleeve to apply sufficient support force to the latch, improving the protective effect and preventing damage to the latch when the drive mechanism outputs a large torque.

[0023] Optionally, an assembly hole is drilled in the center of the drive wheel, and the latch is attached within the assembly hole, whereby the drive wheel can rotate the latch by interfitting the latch with the assembly hole, and further rotate the outer guide shaft.

[0024] Optionally, the latch has a second mating portion for mating with the assembly hole, the second mating portion being polygonal prism-shaped, the assembly hole being a polygonal hole, and the shape of the second mating portion matching the shape of the assembly hole, thereby similarly preventing the second mating portion from slipping relative to the assembly hole and improving transmission efficiency.

[0025] Optionally, the air conditioner has an end cover, an end of the intermediate frame has a mounting groove, the end cover covers the mounting groove, the drive mechanism has a drive box, a drive wheel is rotatably mounted in the drive box, a part of the drive box is mounted in the mounting groove, and the drive box is attached to the outer wall of the intermediate frame, thereby preventing the drive box from protruding from the end of the intermediate frame and making the outer shape of the end of the air conditioner smooth and beautiful, and the mounting groove and the end cover all increase the mounting stability of the drive box, and because it is designed to be attached to the outer wall of the intermediate frame, it ensures that the drive box is installed vertically and avoids shaking.

[0026] Optionally, a notch is opened in the side wall of the mounting groove, the drive box has a mounting part and a drive part, the mounting part is connected to the bottom wall of the mounting groove, the drive part is connected to the mounting part and protrudes out of the mounting groove through the notch, and the drive part has a drive wheel to rotate and drive the air guide door, so that the drive part of the drive box is designed to protrude from the notch in the side wall of the mounting groove and be transmission-connected to the air guide door, which not only simplifies the installation method but also allows the notch to restrict the drive part, further improving the installation stability of the drive box.

[0027] Optionally, a first connecting part and a second connecting part are respectively installed on both sides of a notch along the length of the intermediate frame, and both ends of the first connecting part and the second connecting part are connected to the intermediate frame to form a notch with a closed periphery. This allows the first connecting part and the second connecting part to increase the structural strength around the notch. In particular, when the air conditioner falls and the side end where the drive box is attached hits the ground, the side where the first connecting part is located will hit the ground first rather than the drive box. As a result, the first connecting part can increase the structural strength of the end face on the intermediate frame side and reduce structural damage caused by the fall.

[0028] Optionally, the width of the notch along the length of the intermediate frame is equal to the distance from the first connecting part to the bottom wall of the mounting groove, which makes it very convenient to insert the drive box into the notch during installation.

[0029] Optionally, the drive mechanism comprises a drive box and a drive motor, the drive wheel is mounted in the drive box, and a gear assembly consisting of the drive wheel is further provided in the drive box, one end of the gear assembly is connected to the output shaft of the drive motor, and the other end is transmission-connected to the latch assembly via the drive wheel. By integrating the drive members of the air guide door in the form of a drive box, the mounting of each drive member can be made more stable, and each drive member is less likely to shake during operation of the air conditioner, and the generated noise is also lower.

[0030] Optionally, the gear assembly comprises a first gear, a second gear and a drive wheel, the first gear is mounted on the output shaft of the drive motor and the second gear is meshed with the first gear and the drive wheel respectively, so that the first gear rotates in the same direction synchronously with the output shaft of the drive motor, and the drive wheel rotates in the same direction synchronously with the first gear, and the drive wheel rotates in the same direction synchronously with the first gear, and further, the drive wheel rotates the latch in the same direction synchronously, and the latch rotates the air guide door in the same direction synchronously, which is advantageous for accurately controlling the rotation angle of the air guide door, and with this design, the torque applied to the latch of the drive wheel is large, which can reduce the power required to rotate the air guide door and the friction force between the transmission members, and further reduce the friction noise generated.

[0031] Optionally, the drive box further comprises a mounting frame, which is connected to the bottom wall of the mounting groove, thereby connecting the drive box and the bottom wall of the mounting groove via the mounting frame, thereby further improving the stability of the entire drive box.

[0032] Optionally, the gear assembly is mounted in the mounting frame, so that the gear assembly and the driving wheel are installed in the mounting frame, which makes the operation process of the gear assembly more flexible and stable.

[0033] Optionally, the drive motor is mounted on a mounting frame, which can ensure a more stable mounting of the motor.

[0034] Optionally, the mounting frame includes a base and a gear cover, the gear cover is engaged with the base, and the gear assembly is sandwiched between the base and the gear cover, thereby realizing a structural design in which the mounting frame can be covered by the base and the gear cover, improving assembly efficiency and ensuring transmission efficiency.

[0035] Optionally, at least two first screw holes are drilled in the bottom wall of the mounting groove, and at least two second screw holes are drilled in the mounting frame, and the first screw holes are connected to the second screw holes with screws, so that the mounting frame can be connected in the mounting groove with at least two screws, thereby making the position of the mounting frame more stable.

[0036] Optionally, at least two second screw holes are located on opposite sides of the mounting frame, whereby at least two screws are installed to connect to opposite sides of the mounting frame, which can relatively balance the fastening force received by the mounting frame and further favorably maintain a stable position of the mounting frame.

[0037] Optionally, at least two third screw holes are drilled in the mounting frame, and at least two fourth screw holes are drilled in the motor, and the third screw holes are connected to the fourth screw holes with screws, thereby connecting the motor in the mounting frame with at least two screws, which can make the position of the driving motor more stable.

[0038] Optionally, at least two fourth screw holes are located on opposite sides of the driving motor, and thus at least two screws are installed to connect to opposite sides of the driving motor, which can relatively balance the fastening force received by the driving motor and is advantageous for maintaining a stable position of the driving motor.

[0039] Optionally, an air outlet is opened in the intermediate frame, the axial direction of the outer guide shaft is the same as the length direction of the air outlet, and the difference between the length of the outer guide shaft and the length of the air outlet is in the range of −40 mm to 30 mm.

[0040] In the above technical solution, the outer guide shaft and the air outlet are designed so that the difference in length is within a predetermined range, thereby making it possible to reasonably adjust the length of the outer guide shaft of the air guide door, thereby shortening the distance that the outer guide shaft needs to drive, improving the transmission effect, avoiding slippage, and effectively preventing deformation of the outer guide shaft.

[0041] Optionally, a first end face and a second end face are installed opposite each other on the outer guide shaft, and a first side wall and a second side wall are installed opposite each other on the air outlet, with the distance between the first end face and the first side wall being equal to the distance between the second end face and the second side wall. Thus, by installing the outer guide shaft in the center of the air outlet, uniformity of air blowing is ensured while improving the aesthetics.

[0042] Optionally, both the first end surface and the second end surface are installed between the first side wall and the second side wall, and the maximum distance between the first end surface and the first side wall is 20 mm, which can maximize the length of the outer guide shaft, improve the transmission effect, and avoid deformation of the rotating shaft.

[0043] Optionally, both the first side wall and the second side wall are installed between the first end surface and the second end surface, and the maximum distance between the first side wall and the first end surface is 15 mm, thereby ensuring the transmission effect and simultaneously increasing the length of the rotating shaft as much as possible and improving the stability during rotation of the rotating shaft.

[0044] Optionally, the first end surface is flush with the first side wall, and the second end surface is flush with the second side wall, which similarly allows the length of the outer guide shaft to be appropriate and improves aesthetics.

[0045] Alternatively, the outer guide shaft is installed above the air outlet, and the outer guide shaft can rotate upward to drive the air guide door to open the air outlet, or the outer guide shaft can rotate downward to drive the air guide door to open the air outlet.

[0046] Optionally, a rotation groove is opened on the outer surface of the intermediate frame, the rotation groove extends along the axial direction of the outer guide shaft, the outer guide shaft is installed in the rotation groove, and the rotation groove restricts the outer guide shaft, so that the outer guide shaft can rotate within the rotation groove, rotating the air guide door relative to the intermediate frame and opening and closing the air outlet.

[0047] Optionally, the axial length of the outer guide shaft of the air guide door is equal to the axial length of the outer guide shaft of the intermediate frame, thereby ensuring that the air guide door completely covers the air outlet and improving the aesthetic appearance.

[0048] Optionally, the drive wheel is a gear or pulley.

[0049] The drawings are intended to facilitate a further understanding of the invention, constitute a part of the specification, and are intended to illustrate the invention together with the embodiments thereof, but are not intended to limit the invention. [Brief explanation of the drawings]

[0050] [Figure 1] 1 is an axial side view of an air conditioner according to a first embodiment of the present invention when the air guide door is open. FIG. [Figure 2] 1 is an axial side view of an air conditioner according to a first embodiment of the present invention when the air guide door is closed. [Figure 3] 1 is a front view of an air conditioner according to a first embodiment of the present invention when the air guide door is open. [Figure 4] FIG. 1 is a mathematical model diagram of an air conditioner according to a first embodiment of the present invention. [Figure 5] 1 is a left side view of an air conditioner according to a first embodiment of the present invention when the air guide door is open. FIG. [Figure 6] FIG. 4 is a mathematical model diagram of an air conditioner according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a mathematical model diagram of an air conditioner according to a third embodiment of the present invention. [Figure 8] FIG. 10 is a structural schematic diagram of an air guide door of an air conditioner according to a fourth embodiment of the present invention. [Figure 9] FIG. 10 is an exploded view of the connection between the drive mechanism and the latch assembly according to the fourth embodiment of the present invention. [Figure 10] FIG. 10 is an exploded view of a latch assembly according to a fourth embodiment of the present invention. [Figure 11] FIG. 10 is a structural schematic diagram of a transmission hole according to a fourth embodiment of the present invention. [Figure 12]FIG. 10 is a structural schematic diagram of an engagement groove and a stop block according to a fourth embodiment of the present invention. [Figure 13] FIG. 10 is a cross-sectional view of the connection between the latch assembly and the intermediate frame according to the fourth embodiment of the present invention. [Figure 14] FIG. 10 is a side view in the axial direction of an air conditioner of an end cover according to a fifth embodiment of the present invention. [Figure 15] FIG. 10 is a side view of an air conditioner having an end cover according to a fifth embodiment of the present invention. [Figure 16] FIG. 10 is an exploded structural schematic view of an air conditioner according to a fifth embodiment of the present invention. [Figure 17] FIG. 10 is an exploded structural schematic view of a drive box according to a fifth embodiment of the present invention. [Figure 18] FIG. 10 is a structural schematic diagram of a gear assembly according to a fifth embodiment of the present invention. [Figure 19] FIG. 13 is a structural schematic diagram of an intermediate frame according to a sixth embodiment of the present invention, seen from one viewpoint. [Figure 20] FIG. 13 is a structural schematic diagram of the intermediate frame according to the sixth embodiment of the present invention, seen from another angle. [Figure 21] FIG. 21 is an enlarged schematic view of part A in FIG. 20. DETAILED DESCRIPTION OF THE INVENTION

[0051] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. It should be understood that the preferred embodiments described herein are merely for the purpose of explaining and interpreting the present invention, and are not intended to limit the present invention.

[0052] The present application provides an air conditioner, which may include an outdoor unit and an indoor unit, which are interconnected and connected to each other so that a refrigerant can circulate between the outdoor unit and the indoor unit. The indoor unit is installed in a predetermined area, and can operate to provide air conditioning to the predetermined area while a refrigerant is circulating. The air conditioning functions provided by the indoor unit include, but are not limited to, temperature control, humidity control, outdoor air blowing, and air speed control. Of course, the air conditioning functions that the indoor unit can provide may be one or more of the above functions.

[0053] When an indoor unit provides air conditioning to a predetermined area, the indoor unit generates an airflow for air conditioning and introduces it into the predetermined area, thereby achieving the purpose of air conditioning the predetermined area. In order to quickly and effectively air condition the entire predetermined area, the indoor unit is provided with a structure for adjusting the airflow direction, which adjusts the airflow direction and directs the airflow in multiple directions, allowing for convenient air conditioning of each position in the predetermined area.

[0054] 1 and 2, this technical solution provides an air conditioner for shielding and protecting components within the air conditioner. Specifically, the air conditioner includes an intermediate frame 1 and an air guide door 2. The intermediate frame 1 has an air outlet 11, which supplies hot air or blows out cold air to achieve heating or cooling functions.

[0055] The air guide door 2 is equipped with an outer guide shaft 21, which is configured to be rotatably fitted with the intermediate frame 1, thereby allowing the air guide door 2 to rotate relative to the intermediate frame 1, opening and closing the air outlet 11, and adjusting the air outlet direction. The outer guide shaft 21 is formed integrally with the air guide door 2, improving the connection strength.

[0056] The outer guide shaft 21 extends along the entire length of the air guide door 2. Compared with the prior art technical solution in which the rotating shafts at both ends are respectively installed at both ends of the air guide door, in this method the contact area between the outer guide shaft 21 and the air guide door 2 is larger, and the driving force transmitted by the outer guide shaft 21 can act on the entire air guide door 2, not just on both ends of the air guide door 2. In this way, during the rotation process of the air guide door 2, the force received by the air guide door 2 is more uniform, and deformation of the air guide door 2 can be effectively prevented.

[0057] 3 and 4, the axial direction of the outer guide shaft 21 is the same as the longitudinal direction of the air outlet 11. The air outlet 11 is rectangular, and its longitudinal direction is the extension direction of the long side of the air outlet 11, that is, the longitudinal direction of the air conditioner. Specifically, the difference between the length of the outer guide shaft 21 and the length of the air outlet 11 ranges from −40 mm to 30 mm, and the length of the air outlet 11 is the length of the long side of the air outlet 11. By limiting the length of the outer guide shaft 21 according to the length of different types of air outlets 11, the length of the outer guide shaft 21 can be kept within a reasonable range, which does not affect the air guiding effect, while shortening the distance that the outer guide shaft 21 needs to be driven, improving the transmission effect, avoiding slippage, and effectively preventing deformation of the outer guide shaft 21.

[0058] For ease of understanding, the length of the outer guide shaft 21 is a, the length of the air outlet 11 is b, the minimum value of ab is -40 mm, and the maximum value of ab is 30 mm. In other words, the maximum length of the outer guide shaft 21 is 30 mm longer than the length of the air outlet 11, and the minimum length of the outer guide shaft 21 is 40 mm shorter than the length of the air outlet 11.

[0059] A first end face 211 and a second end face 212 are disposed opposite each other on the outer guide shaft 21, and the distance between the first end face 211 and the second end face 212 is equal to the length of the outer guide shaft 21. A first side wall 111 and a second side wall 112 are disposed opposite each other on the air outlet 11, and the distance between the first side wall 111 and the second side wall 112 is also equal to the length of the long side of the air outlet 11.

[0060] Specifically, the distance between the first end face 211 and the first side wall 111 is equal to the distance between the second end face 212 and the second side wall 112, i.e., the center point of the outer guide shaft 21 and the center point of the air outlet 11 are on the same cross section of the outer guide shaft 21, and both ends of the outer guide shaft 21 are inserted into or retracted from both sides of the air outlet 11 at equal distances. In this way, by installing the outer guide shaft 21 at the center of the air outlet 11, uniform air blowing is ensured and the appearance is improved.

[0061] First example: 4, in this embodiment, both the first end surface 211 and the second end surface 212 are disposed between the first side wall 111 and the second side wall 112, i.e., the length of the outer guide shaft 21 is shorter than the length of the air outlet 11, and the outer guide shaft 21 is disposed within the air outlet 11. Specifically, the maximum distance between the first end surface 211 and the first side wall 111 is 20 mm, and the maximum distance between the second end surface 212 and the second side wall 112 is 20 mm.

[0062] In this embodiment, the distance between the first end surface 211 and the first side wall 111 is 20 mm, and the distance between the second end surface 212 and the second side wall 112 is 20 mm. In this case, ab = -40 mm, which maximizes the length of the outer guide shaft 21, improves the transmission effect, and prevents deformation of the outer guide shaft 21. However, without being limited thereto, in other embodiments, the distance between the first end surface 211 and the first side wall 111 may be 10 mm or 5 mm, and the distance between the second end surface 212 and the second side wall 112 may be 10 mm or 5 mm. The distances between the first end surface 211 and the first side wall 111 and the distance between the second end surface 212 and the second side wall 112 are not specifically limited.

[0063] It should be noted that the outer guide shaft 21 is installed above the air outlet 11, and the outer guide shaft 21 can rotate upward to drive the air guide door 2 to open the air outlet 11, and the outer guide shaft 21 can also rotate downward to drive the air guide door 2 to close the air outlet 11. Specifically, as the opening degree of the air guide door 2 differs, the air outlet direction of the air conditioner also differs, realizing the function of adjusting the air outlet direction.

[0064] 5, in this embodiment, a rotation groove 12 is formed on the outer surface of the intermediate frame 1, and the rotation groove 12 extends along the axial direction of the outer guide shaft 21. The outer guide shaft 21 is installed in the rotation groove 12, and the outer guide shaft 21 can rotate within the rotation groove 12 to rotate the air guide door 2 relative to the intermediate frame 1 and open or close the air outlet 11. The rotation groove 12 restricts the outer guide shaft 21 and prevents it from coming off the intermediate frame 1. Specifically, because the rotation groove 12 is formed on the outer surface of the intermediate frame 1, the entire air guide door 2 is exposed to the outside of the intermediate frame 1, and the air guide door 2 can open and close the air outlet 11 from outside the intermediate frame 1. This makes it possible to visualize the adjustment of the air outlet direction by the air guide door 2 and improves the user experience.

[0065] In this embodiment, the axial length of the outer guide shaft 21 of the air guide door 2 is equal to the axial length of the outer guide shaft 21 of the intermediate frame 1, i.e., the length of the air guide door 2 is the same as the length of the entire air conditioner, thereby ensuring that the air guide door 2 completely covers the air outlet 11 and improving the aesthetic appearance. Furthermore, the air guide door 2 is in the shape of an arc plate, which can improve the air guiding effect.

[0066] Second Example: As shown in FIG. 6, the difference between this embodiment and the first embodiment is that the length of the outer guide shaft 21 of the air guide door 2 is different.

[0067] In this embodiment, both the first side wall 111 and the second side wall 112 are installed between the first end surface 211 and the second end surface 212, i.e., the length of the outer guide shaft 21 is longer than the length of the air outlet 11, and the outer guide shaft 21 is installed to protrude from the air outlet 11. Specifically, the maximum distance between the first side wall 111 and the first end surface 211 is 15 mm, and the maximum distance between the second side wall 112 and the second end surface 212 is 15 mm.

[0068] The distance between the first side wall 111 and the first end face 211 is 15 mm, and the distance between the second side wall 112 and the second end face 212 is also 15 mm, with ab = 30 mm in this case, thereby ensuring a transmission effect while simultaneously increasing the length of the outer guide shaft 21 as much as possible and improving the stability during rotation of the outer guide shaft 21. However, this is not limited thereto, and in other embodiments, the distance between the first side wall 111 and the first end face 211 may be 10 mm or 5 mm, and the distance between the second side wall 112 and the second end face 212 may be 10 mm or 5 mm. The distances between the first side wall 111 and the first end face 211 and the distance between the second side wall 112 and the second end face 212 are not specifically limited.

[0069] The beneficial effects of the air conditioner according to this embodiment are the same as those of the first embodiment, and a detailed description thereof will be omitted here.

[0070] Example 3: As shown in FIG. 7, the difference between this embodiment and the first embodiment is that the length of the outer guide shaft 21 of the air guide door 2 is different.

[0071] In this embodiment, the first end face 211 is flush with the first side wall 111, and the second end face 212 is flush with the second side wall 112; that is, the length of the outer guide shaft 21 is equal to the length of the air outlet 11, and both ends of the outer guide shaft 21 respectively coincide with both sides of the air outlet 11; in this case, a=b, which allows the length of the outer guide shaft 21 to be appropriate and improves the aesthetic appearance.

[0072] The beneficial effects of the air conditioner according to this embodiment are the same as those of the first embodiment, and a detailed description thereof will be omitted here.

[0073] Referring to FIG. 8, the air conditioner according to the present invention further includes a drive mechanism 3 and a latch assembly 4 in addition to the intermediate frame 1 and the air guide door 2. The drive mechanism 3 includes a drive wheel 31, a drive box 32 and a drive motor 33. The drive wheel 31 may be a gear or a pulley and is configured to rotate to output power. The latch assembly 4 is detachably connected to both the outer guide shaft 21 and the drive wheel 31, and the drive wheel 31 drives the outer guide shaft 21 via the latch assembly 4 to achieve coaxial rotation of the three.

[0074] The latch assembly 4 functions as both a connecting component connecting the drive wheel 31 and the outer guide shaft 21 and a transmission component, thereby transmitting power to the outer guide shaft 21 when the drive wheel 31 rotates, thereby rotating the air guide door 2. The latch assembly 4 provides both a connecting function and a transmission function for the drive wheel 31 and the outer guide shaft 21, thereby simultaneously completing the connection and transmission engagement between the drive wheel 31 and the outer guide shaft 21. This simplifies the structure of the drive mechanism 3, overcomes the problem of the complex structure of the drive device for the air guide door 2 in the prior art, reduces the difficulty of assembling the drive mechanism 3 and the air guide door 2, and improves the assembly efficiency of the air conditioner. Furthermore, assembling the three components to rotate coaxially improves the coaxial precision of the outer guide shaft 21, drive wheel 31, and latch assembly 4, thereby ensuring stable rotation of the air guide door 2 as the drive wheel 31 rotates, improving the air guide effect.

[0075] Fourth Example: The lengths of the outer guide shaft 21 and the air outlet 11 selected in this embodiment can be designed with reference to the above three embodiments.

[0076] Referring to Figure 9, it can be seen that in this embodiment, the latch assembly 4 comprises a latch 41, a mounting base 42, at least one sleeve 43 and an elastic part 44, the mounting base 42 is fixedly attached to the intermediate frame 1, the latch 41 is attached to the mounting base 42 and is slidable relative to the mounting base 42 along its axial direction, one end of the latch 41 is fitted to the drive wheel 31 and the other end is fitted to the outer guide shaft 21, so that the drive mechanism 3 rotates the outer guide shaft 21 via the latch 41, and the air guide door 2 can open and close the air outlet 11.

[0077] Specifically, in the process of fitting the latch 41 to the drive wheel 31 and the outer guide shaft 21, the latch 41 is first slid relative to the mounting base 42 in a direction approaching the drive wheel 31, causing the latch 41 to be over-inserted into the drive mechanism 3, thereby positioning the air guide door 2 and facilitating installation of the air guide door 2, after which the air guide door 2 is attached to the intermediate frame 1, and then the latch 41 is slid relative to the mounting base 42 in a direction approaching the air guide door 2, thereby resetting the latch 41, completing the installation until one end of the latch 41 is fitted to the drive wheel 31 and the other end is fitted to the outer guide shaft 21. In this way, the installation process of the entire air guide mechanism is convenient, simple, and highly efficient, and can meet the need for a long-distance connection between the drive mechanism 3 and the outer guide shaft 21. At the same time, the mounting base 42 fixedly attached to the intermediate frame 1 is used to restrict the latch 41, thereby preventing damage to the drive mechanism 3 caused by a large torque output when the latch 41 transmits torque over a long distance.

[0078] Referring to FIG. 10, the sleeve 43 is attached to the mounting base 42 and fitted to the latch 41, the latch 41 is connected to the mounting base 42 via the sleeve 43, the latch 41 can rotate relative to the sleeve 43, the sleeve 43 allows the latch 41 to slide more smoothly, improves the rotation accuracy of the latch 41, and prevents the latch 41 from being offset or tilted.

[0079] Furthermore, an annular base 45 is provided on the periphery of the latch 41, and an elastic element 44 is fitted to the latch 41, with one end of the elastic element 44 abutting against the annular base 45 and the other end abutting against the drive mechanism 3. The elastic element 44 is always in a compressed state and can apply an elastic force to the annular base 45, so that the latch 41 tends to slide in a direction approaching the air guide door 2. Thus, after the installation of the air guide door 2 is completed, there is no need to apply a thrust to the latch 41, and the latch 41 slides in a direction approaching the air guide door 2 due to the elastic force of the elastic element 44 and stops until the annular base 45 abuts against the mounting base 42, at which point the resetting of the latch 41 is completed, and the engagement of both ends of the latch 41 with the drive mechanism 3 and the outer guide shaft 21 is completed, respectively.

[0080] In the above technical solution, the latch assembly 4 installed between the drive mechanism 3 and the air guide door 2 and the latch 41 that can slide on the mounting base 42 are adopted, which simplifies the installation process of the air conditioner, improves installation efficiency, reduces labor and time costs, ensures long-distance transmission effect, and avoids damage to parts.

[0081] At the same time, the sleeve 43 can restrict the latch 41, thereby improving the rotational accuracy of the latch 41 and preventing the latch 41 from being offset or tilted.

[0082] In this embodiment, the elastic element 44 is a spring, but is not limited to this. In other embodiments, the elastic element 44 may be elastic rubber, and the material of the elastic element 44 is not specifically limited.

[0083] As shown in Figure 11, the latch 41 is installed coaxially with the outer guide shaft 21, a transmission hole 213 is opened in the end face of the outer guide shaft 21, and the latch 41 is inserted into the transmission hole 213 and engaged with the transmission hole 213. As a result, the drive mechanism 3 can rotate the outer guide shaft 21 by engaging the latch 41 with the transmission hole 213, thereby rotating the entire air guide door 2 and further realizing the function of adjusting the blowing direction.

[0084] The latch 41 itself includes a first fitting portion 411 for fitting with the transmission hole 213, the first fitting portion 411 being polygonal prism-shaped, the transmission hole 213 being a polygonal hole, and the shape of the first fitting portion 411 matching the shape of the transmission hole 213, thereby preventing the first fitting portion 411 from slipping relative to the transmission hole 213 and improving transmission efficiency. In this embodiment, the first fitting portion 411 is configured in a hexagonal prism-like shape, and the transmission hole 213 is a hexagonal hole, but this is not limited thereto. In other embodiments, the first fitting portion 411 may be prismatic, in which case the transmission hole 213 is a rectangular hole, and the first fitting portion 411 may even be octagonal prism-shaped, in which case the transmission hole 213 is an octagonal hole. The shapes of the first fitting portion 411 and the transmission hole 213 are not specifically limited.

[0085] 10 to 13 , the mounting base 42 includes a positioning portion 421, a mounting portion 422, and an abutment portion 423. In this embodiment, the positioning portion 421, the mounting portion 422, and the abutment portion 423 are integrally formed to improve connection strength. The mounting portion 422 is annular, and the latch 41 is installed within the mounting portion 422 and can slide or rotate relative to the mounting portion 422. A stop block 13 is installed on the intermediate frame 1, and the abutment portion 423 abuts against the stop block 13, which limits the abutment portion 423 and can initially fix the position of the mounting base 42. A screw hole 14 is drilled in the intermediate frame 1, and a through hole 424 is drilled in the positioning portion 421. The position of 424 corresponds to the position of the screw hole 14, and the screw hole 14 is fitted into the through hole 424. Specifically, by passing a screw through the through hole 424 and tightening it into the screw hole 14, the relative position of the positioning portion 421 and the intermediate frame 1 is fixed, thereby further fixing the position of the mounting base 42 and preventing displacement of the mounting base 42 relative to the intermediate frame 1.

[0086] In this embodiment, an engagement groove 131 is opened in the stop block 13, and the abutment portion 423 is inserted into the engagement groove 131 and fitted into the engagement groove 131. The engagement groove 131 can limit the position of the abutment portion 423, prevent the abutment portion 423 from shaking, and improve the stability of the connection between the mounting base 42 and the intermediate frame 1.

[0087] It should be noted that the mounting portion 422 is annular, and both the positioning portion 421 and the abutment portion 423 are installed on the circumferential surface of the mounting portion 422, and the line connecting the axis of the positioning portion 421 and the mounting portion 422 and the line connecting the axis of the abutment portion 423 and the mounting portion 422 are installed at a predetermined angle, which makes it easy to install and fix the mounting base 42.

[0088] Furthermore, the preset angle is in the range of 90° to 150°, and by rationalizing the preset angle, it is possible to ensure the strength of the mounting base 42 while facilitating production processing. In this embodiment, the preset angle is 125°, but is not limited to this; in other embodiments, the preset angle may be 90° or 150°, and the magnitude of the preset angle is not specifically limited.

[0089] In this embodiment, the sleeve 43 is annular, and the mounting portion 422 is fitted onto the sleeve 43 and detachably connected to the sleeve 43. Specifically, a limiting ring 431 is provided at one end of the sleeve 43, and an elastic holding arm 432 is provided at the other end. During the installation process of the sleeve 43, the sleeve 43 is passed through the mounting portion 422 and stops until the limiting ring 431 abuts against the mounting portion 422. At this time, the elastic holding arm 432 holds the mounting portion 422 to the limiting ring 431 by its elastic force, fixing the relative positions of the sleeve 43 and the mounting portion 422, and thereby fixing the relative positions of the sleeve 43 and the mounting base 42.

[0090] Furthermore, the sleeve 43 is fitted over at least a quarter of the axial length of the latch 41, thereby ensuring a sufficient contact area between the sleeve 43 and the latch 41, allowing the sleeve 43 to apply sufficient support force to the latch 41, improving the protective effect and preventing damage to the latch 41 when the drive mechanism 3 outputs a large torque.

[0091] In this embodiment, there are two mounting portions 422, two abutting portions 423, two engaging grooves 131, and two sleeves 43. The two mounting portions 422 are coaxially spaced apart and are both fixedly connected to the positioning portion 421. One mounting portion 422 is attached to each sleeve 43. The latch 41 is installed through both sleeves 43 at the same time, and the two sleeves 43 cooperate to further improve the rotation accuracy of the latch 41. Each abutting portion 423 is fixedly connected to the outside of the mounting portion 422 and fitted into the engaging groove 131. However, this is not limited thereto. In other embodiments, the number of mounting portions 422, the abutting portions 423, the engaging groove 131, and the sleeves 43 may be one or three. The numbers of mounting portions 422, the abutting portions 423, the engaging groove 131, and the sleeves 43 are not specifically limited.

[0092] In this embodiment, an assembly hole 311 is opened in the center of the drive wheel 31, and the latch 41 is attached within the assembly hole 311. As a result, the drive wheel 31 can rotate the latch 41 by fitting the latch 41 into the assembly hole 311, and further rotate the outer guide shaft 21.

[0093] Furthermore, the latch 41 has a second fitting portion 412 for fitting with the assembly hole 311, the second fitting portion 412 being polygonal prism-shaped, the assembly hole 311 being a polygonal hole, and the shape of the second fitting portion 412 matching the shape of the assembly hole 311. In this embodiment, the second fitting portion 412 is installed in the shape of a hexagonal prism, and the assembly hole 311 is a hexagonal hole, which prevents the second fitting portion 412 from slipping relative to the assembly hole 311 and improves transmission efficiency.

[0094] In order to improve the connection strength, a connecting portion 413 formed integrally between the first fitting portion 411 and the second fitting portion 412 is connected, and the connecting portion 413 transmits torque, enabling the drive mechanism 3 to rotate the outer guide shaft 21 via the latch 41.

[0095] Fifth Example: 14-16, the air conditioner further includes an end cover, and a mounting groove 6 at the end of the intermediate frame 1. The outer surface of the end of the intermediate frame 1 is recessed to form a large mounting cavity. The mounting groove 6 may be a mounting cavity itself, or a small groove installed inside the large mounting cavity. The end cover covers the mounting groove 6, and the drive wheel 31 is rotatably mounted in the drive box 32, which is mounted in the mounting groove 6 and attached to the outer wall 1 of the intermediate frame. The recessed design of the mounting groove 6 allows the drive box 32 to be mounted, preventing the drive box 32 from protruding beyond the end of the intermediate frame 1 and giving the air conditioner a smooth and beautiful appearance. The mounting groove 6 and the end cover together improve the mounting stability of the drive box 32 and prevent impurities such as dust from entering the drive box 32 and affecting its power transmission effect.

[0096] Next, by driving the air guide door 2 in the form of a drive box 32, the installation of each drive member can be made more stable, and each drive member is less likely to shake and generate noise during operation of the air conditioner.

[0097] The air conditioner may include one drive box 32 or two drive boxes 32. When one drive box 32 is installed, a mounting groove 6 for mounting the drive box 32 is opened at one end of the intermediate frame 1, and the mounting groove 6 is covered with an end cover. In this way, when one end of the air guide door 2 is driven by one drive box 32, the air guide door 2 can be rotated. When two drive boxes 32 are installed, a mounting groove 6 for mounting the drive box 32 is opened at each of both end portions of the intermediate frame 1, and the mounting groove 6 is covered with an end cover. In this way, the two drive boxes 32 drive both ends of the air guide door 2, respectively, to rotate the air guide door.

[0098] The drive wheel 31 is mounted within a drive box 32, and a gear assembly 34 consisting of a mounting frame 35 and the drive wheel 31 is further provided within the drive box 32. The gear assembly 34 includes a first gear 341, a second gear 342, and the drive wheel 31. The first gear 341 is mounted on the output shaft of the drive motor 33, and the second gear 342 meshes with the first gear 341 and the drive wheel 31, respectively. The mounting frame 35 is connected to the bottom wall of the mounting groove 6 and includes a base 351 and a gear cover 352. The gear cover 352 is engaged with the base 351, and the gear assembly 34 is sandwiched between the base 351 and the gear cover 352, which not only ensures flexible rotation of the gear assembly 34 within the mounting frame 35, but also stabilizes the positions of the drive motor 33 and the gear assembly 34.

[0099] Specifically, a first locking hook 361 is installed at one end of the base 351, a second locking hook 362 is installed at the other end, a first locking hole 371 is installed at one end of the gear cover 352, and a third locking hook 363 is installed at the other end, and the first locking hook 361 is engaged with the first locking hole 371, and the second locking hook 362 is engaged with the third locking hook 363, thereby realizing engagement between the base 351 and the gear cover 352.

[0100] At least two first screw holes 61 are drilled in the bottom wall of the mounting groove 6, and at least two second screw holes 62 are drilled in the mounting frame 35, and the first screw holes 61 are connected to the second screw holes 62 with screws.In this way, by connecting the mounting frame 35 within the mounting groove 6 with at least two screws, the position of the mounting frame 35 can be stabilized.

[0101] Furthermore, at least two second screw holes 62 are located on opposite sides of the mounting frame 35, so that at least two screws are installed to connect to opposite sides of the mounting frame 35, which can relatively balance the fastening force received by the mounting frame 35 and is advantageous for maintaining a stable position of the mounting frame 35.

[0102] At least two third screw holes (not shown) are drilled in the mounting frame 35, and at least two fourth screw holes 64 are drilled in the drive motor 33, and the third screw holes are connected to the fourth screw holes 64 with screws, thereby connecting the drive motor 33 to the mounting frame 35 with at least two screws, thereby stabilizing the position of the drive motor 33.

[0103] Furthermore, at least two fourth screw holes 64 are located on opposite sides of the driving motor 33, so that at least two screws are installed to connect to opposite sides of the driving motor 33, which can relatively balance the fastening force received by the driving motor 33 and is advantageous for maintaining a stable position of the driving motor 33.

[0104] In addition, the second screw hole 62 and the third screw hole on the mounting frame 35 are both offset and located on the outer edge of the mounting frame 35, thereby making full use of the peripheral space of the mounting frame 35 and facilitating the assembly of the drive motor 33 to the mounting frame 35 and the assembly of the mounting frame 35 into the mounting groove 6.

[0105] In the gear assembly 34, the first gear 341 and the second gear 342 can be two gears with the same dimensions and shape, so there is no need to separate the first gear 341 and the second gear 342, and they can be replaced, reducing design costs and production costs and improving assembly efficiency.

[0106] Two second locking holes 372 are further drilled at the end of the latch 41, and two fourth locking hooks 364 are installed on the end surface of the drive wheel 31. The two fourth locking hooks 364 are respectively engaged with the two second locking holes 372, thereby ensuring a stable connection between the latch 41 and the drive wheel 31.

[0107] The operating principle of the gear assembly 34 is as follows: the first gear 341 rotates in the same direction as the output shaft of the drive motor 33, and the first gear 341 drives the drive wheel 31 via the second gear 342, so that the drive wheel 31 rotates in the same direction as the first gear 341, and the latch 41 rotates in the same direction as the drive wheel 31. The latch 41 then drives the air guide door 2, causing the output shaft of the drive motor 33 and the air guide door 2 to rotate in the same direction as each other, which is advantageous for accurately controlling the rotation angle of the air guide door 2. Furthermore, because the latch 41 is installed in the assembly hole 311 in the center of the drive wheel 31, the latch 41 is installed coaxially with the drive wheel 31. This not only improves the compactness of the structure, but also increases the torque applied to the latch 41 by the drive wheel 31, thereby reducing the power required to rotate the air guide door 2 and the frictional force between the transmission members, thereby reducing the possibility of frictional noise.

[0108] During the actual operation of the air conditioner, the length of the air conditioner is installed horizontally, and the output shaft of the drive motor 33 of the gear assembly 34, the axis of the first gear 341, the axis of the second gear 342, the axis of the drive wheel 31 and the axis of the latch 41 are all installed horizontally, which avoids horizontal play in the gears due to their own gravity and ensures that the gears mesh at the specified positions, resulting in good transmission efficiency.

[0109] As shown in Figures 17 and 18, a rib 353 is further installed on the inner wall of the mounting frame 35, and the rib 353 is circular. Bumps 354 are further installed on the end faces of the first gear 341, the second gear 342 and the driving wheel 31, and the bumps 354 are slidably engaged with the rib 353. That is, during the operation of the gear assembly 34, the bumps 354 on the end faces of the first gear 341, the second gear 342 and the driving wheel 31 are slidably engaged with the corresponding ribs 353, thereby avoiding direct friction between the gears and the inner wall of the mounting frame 35, preventing premature wear of the gears, and reducing friction noise.

[0110] Sixth Example: As shown in Figures 19 to 21, a notch 65 is opened in the side wall of the mounting groove 6, the drive box 32 has a mounting part 321 and a drive part 322, the drive wheel 31 is installed on the drive part 322, the drive part 322 can rotate and drive the air guide door 2, the mounting part 321 is connected to the bottom wall of the mounting groove 6, and the drive part 322 is connected to the mounting part 321 and protrudes out of the mounting groove 6 through the notch 65, which not only simplifies the installation method but also allows the notch 65 to restrict the drive part 322, further improving the installation stability of the drive box 32.

[0111] In this embodiment, a first connecting part 651 and a second connecting part 652 are respectively installed on both sides of a notch 65 along the longitudinal direction of the intermediate frame 1, and both ends of the first connecting part 651 are connected to the intermediate frame 1, and both ends of the second connecting part 652 and the side away from the first connecting part 651 are all connected to the intermediate frame 1, so that the first connecting part 651, the second connecting part 652 and the intermediate frame 1 surround and form a notch 65 with a closed periphery.

[0112] As a result, by installing the first connecting part 651 and the second connecting part 652, the structural strength around the notch 65 can be increased; in particular, if the air conditioner falls and the side end face on which the drive box 32 is attached comes into contact with the ground, the side on which the first connecting part 651 is located will come into contact with the ground before the drive box 32, and as a result, the first connecting part 651 can increase the structural strength of the end face on the intermediate frame side and reduce structural damage caused by the fall.

[0113] Furthermore, the first connecting part 651 can be designed as an arc structure, the outer surface of the arc structure is connected to the intermediate frame 1, and both ends of the arc structure protrude from the intermediate frame by a certain length, thereby not only increasing the structural strength of the first connecting part 651 itself, but also increasing the connection strength with the intermediate frame 1.

[0114] In this embodiment, the latch 41 is assembled into the drive wheel 31 after the mounting frame 35 is inserted into the notch 65, so the overall width of the notch 65 along the length of the intermediate frame 1 can be designed to be small. The notch 65 includes a first notch 653 and a second notch 654 that communicate with each other, and the first notch 653 and the second notch 654 are arranged in order from the side end face of the intermediate frame 1 to the center of the intermediate frame 1. The vertical opening length of the first notch 653 is shorter than the vertical opening length of the second notch 654. The second notch 654 is used to insert the mounting frame 35, and the first notch 653 is used to insert the fourth locking hook 364 of the drive wheel 31, so that the drive box 32 can be inserted into the notch 65.

[0115] Therefore, the width a of the second notch 654 along the longitudinal direction of the intermediate frame 1 is greater than or equal to the width of the mounting frame 35, and the width b of the first notch 653 along the longitudinal direction of the intermediate frame 1 is greater than or equal to the length of the portion of the fourth locking hook 364 protruding from the mounting frame 35.

[0116] The bottom wall of the mounting groove 6 may be flush with the right edge of the notch 65, so that the width of the notch 65 along the length of the intermediate frame 1 is equal to the distance from the first connecting part 651 to the bottom wall of the mounting groove 6, and the mounting frame 35 can slide along the bottom surface of the mounting groove 6 after contacting the bottom surface of the mounting groove 6, and the mounting frame 35 can be inserted into the notch 65.

[0117] As described above, in the air conditioner according to this technical solution, firstly, the latch assembly 4 functions as both a connecting part connecting the drive wheel 31 and the outer guide shaft 21 and a transmission part, thereby allowing the three to rotate synchronously and improving the precision of the coaxiality. Secondly, the structural design of the latch assembly 4 can simplify the installation process of the entire device, improve installation efficiency, reduce labor and time costs, ensure long-distance transmission effect, and avoid damage to parts. The installation groove 6 is opened at the end of the intermediate frame 1, and then the drive box 32 is installed in the installation groove 6, and the installation groove 6 is covered with an end cover, so that the drive box can be installed in the intermediate frame. The mounting groove 6 and end cover can increase the stability of the mounting of the drive box 32. By integrating the drive members of the air guide door 2 in the form of the drive box 32, the mounting of each drive member is stabilized, and the drive members are less likely to shake and generate noise during operation of the air conditioner. Finally, by controlling the length of the outer guide shaft 21 of the air guide door 2, the distance that the outer guide shaft 21 needs to drive can be shortened, improving the transmission effect, avoiding slippage, and effectively preventing deformation of the outer guide shaft 21.

[0118] Finally, the above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention. [Explanation of symbols]

[0119] 1 - intermediate frame, 11 - air outlet, 111 - first side wall, 112 - second side wall, 12 - rotation groove, 13 - stop block, 131 - engagement groove, 14 - screw hole, 2 - air guide door, 21 - outer guide shaft, 211 - first end surface, 212 - second end surface, 213 - transmission hole, 3 - drive mechanism, 31 - drive wheel, 311 - assembly hole, 32 - drive box, 321 - mounting portion, 322 - drive portion, 33 - drive motor, 34 - gear assembly, 341 - first gear, 342 - second gear, 35 - mounting frame, 351 - base, 352 - gear cover, 353 - rib, 354 - bump, 361 - first locking hook, 362 - second locking hook , 363 - third locking hook, 364 - fourth locking hook, 371 - first locking hole, 372 - second locking hole, 4 - latch assembly, 41 - latch, 411 - first mating portion, 412 - second mating portion, 413 - connecting portion, 42 - mounting base, 421 - positioning portion, 422 - mounting portion, 423 - abutment portion, 424 - through hole, 43 - sleeve, 431 - limiting ring, 432 - elastic retaining arm, 44 - elastic part, 45 - annular base, 6 - mounting groove, 61 - first screw hole, 62 - second screw hole, 64 - fourth screw hole, 65 - notch, 651 - first connecting part, 652 - second connecting part, 653 - first notch, 654 - second notch.

Claims

1. An air conditioner comprising an intermediate frame (1), a wind guide door (2), a drive mechanism (3), and a latch assembly (4); The air guide door (2) includes an outer guide shaft (21) configured to be rotatably fitted with the intermediate frame (1), The drive mechanism (3) includes a drive wheel (31) configured to rotate and output power; The outer guide shaft (21) is connected to the drive wheel (31) via the latch assembly (4), and the latch assembly (4) is detachably connected to at least one of the outer guide shaft (21) and the drive wheel (31), and the drive wheel (31) can drive the outer guide shaft (21) via the latch assembly (4) to achieve coaxial rotation of the three. The latch assembly (4) is detachably connected to both the outer guide shaft (21) and the drive wheel (31); The latch assembly (4) comprises a latch (41) and a mounting base (42), the mounting base (42) is fixedly attached to the intermediate frame (1), the latch (41) is attached to the mounting base (42) and is slidable relative to the mounting base (42) along its axial direction, one end of the latch (41) is fitted to the drive wheel (31), and the other end is fitted to the outer guide shaft (21); The latch assembly (4) comprises at least one sleeve (43), the sleeve (43) being attached to the mounting base (42) and fitted over the latch (41), the latch (41) being attached within the sleeve (43); An elastic part (44) is fitted to the exterior of the latch (41), and the elastic part (44) is configured to apply an elastic force to the latch (41), thereby causing the latch (41) to slide in a direction approaching the air guide door (2).

2. An annular base (45) is provided on the circumferential surface of the latch (41), one end of the elastic part (44) abuts against the annular base (45), and the other end abuts against the drive mechanism (3); The latch (41) is installed coaxially with the outer guide shaft (21), a transmission hole (213) is opened on the end surface of the outer guide shaft (21), and the latch (41) is inserted into the transmission hole (213) and fitted into the transmission hole (213); 2. The air conditioner according to claim 1, wherein the latch (41) comprises a first fitting portion (411) for fitting with the transmission hole (213), the first fitting portion (411) being polygonal prism-shaped, the transmission hole (213) being a polygonal hole, and the shape of the first fitting portion (411) matching the shape of the transmission hole (213).

3. The mounting base (42) has a positioning portion (421), a mounting portion (422) and an abutment portion (423), a stop block (13) and a screw hole (14) are installed on the intermediate frame (1), the latch (41) is installed in the mounting portion (422), the abutment portion (423) abuts against the stop block (13), a through hole (424) is opened in the positioning portion (421), and the screw hole (14) is fitted with a screw in the through hole (424); An engagement groove (131) is formed in the stop block (13), and the abutment portion (423) is inserted into the engagement groove (131) and fitted into the engagement groove (131); 2. The air conditioner of claim 1, wherein the mounting portion (422) is annular, the positioning portion (421) and the abutment portion (423) are both installed on the circumferential surface of the mounting portion (422), and a line connecting the axis of the positioning portion (421) and the mounting portion (422) and a line connecting the axis of the abutment portion (423) and the mounting portion (422) are installed at a predetermined angle.

4. A sleeve (43) is provided over at least a quarter of the axial length of the latch (41), An assembly hole (311) is drilled in the center of the drive wheel (31), and the latch (41) is attached to the assembly hole (311); 2. The air conditioner according to claim 1, wherein the latch (41) has a second fitting portion (412) for fitting with the assembly hole (311), the second fitting portion (412) has a polygonal columnar shape, the assembly hole (311) is a polygonal hole, and the shape of the second fitting portion (412) matches the shape of the assembly hole (311).

5. The air conditioner includes an end cover, an end of the intermediate frame (1) having a mounting groove (6), the end cover covering the mounting groove (6), the drive mechanism (3) including a drive box (32), the drive wheel (31) rotatably mounted in the drive box (32), a portion of the drive box (32) mounted in the mounting groove (6), and the drive box (32) attached to the outer wall of the intermediate frame (1), A notch (65) is formed in the side wall of the mounting groove (6), the drive box (32) has a mounting part (321) and a drive part (322), the mounting part (321) is connected to the bottom wall of the mounting groove (6), the drive part (322) is connected to the mounting part (321) and protrudes outside the mounting groove (6) from the notch (65), the drive part (322) has the drive wheel (31) and drives the wind guide door (2) to rotate, a first connecting part (651) and a second connecting part (652) are respectively installed on both sides of the notch (65) along the length direction of the intermediate frame (1), both ends of the first connecting part (651) are connected to the intermediate frame (1), and both ends of the second connecting part (652) and a side of the second connecting part (652) remote from the first connecting part (651) are connected to the intermediate frame (1), thereby the first connecting part (651), the second connecting part (652), and the intermediate frame (1) surround and form a notch (65) whose periphery is closed; 2. The air conditioner according to claim 1, wherein the width of the notch (65) along the longitudinal direction of the intermediate frame (1) is equal to the distance from the first connecting part (651) to the bottom wall of the mounting groove (6).

6. The drive mechanism (3) comprises a drive box (32) and a drive motor (33), the drive wheel (31) is mounted in the drive box (32), and a gear assembly (34) consisting of the drive wheel (31) is further provided in the drive box (32), one end of the gear assembly (34) is connected to the output shaft of the drive motor (33), and the other end is transmission-connected to the latch assembly (4) via the drive wheel (31); The gear assembly (34) comprises a first gear (341), a second gear (342) and a drive wheel (31), the first gear (341) being provided on the output shaft of the drive motor (33); The second gear (342) meshes with the first gear (341) and the driving wheel (31), The drive box (32) further comprises a mounting frame (35), the mounting frame (35) being connected to the bottom wall of the mounting groove (6); The gear assembly (34) is mounted within the mounting frame (35); The drive motor (33) is mounted on the mounting frame (35), 6. The air conditioner according to claim 5, wherein the mounting frame (35) comprises a base (351) and a gear cover (352), the gear cover (352) is engaged with the base (351), and the gear assembly (34) is sandwiched between the base (351) and the gear cover (352).

7. At least two first screw holes (61) are drilled in the bottom wall of the mounting groove (6), and at least two second screw holes (62) are drilled in the mounting frame (35), and the first screw holes (61) are connected to the second screw holes (62) with screws; At least two of the second screw holes (62) are located on opposite sides of the mounting frame (35); At least two third screw holes are drilled in the mounting frame (35), and at least two fourth screw holes (64) are drilled in the drive motor (33), and the third screw holes are connected to the fourth screw holes (64) with screws; 7. The air conditioner according to claim 6, wherein at least two of the fourth screw holes (64) are located on opposite sides of the drive motor (33).

8. An air outlet (11) is formed in the intermediate frame (1), the axial direction of the outer guide shaft (21) is the same as the length direction of the air outlet (11), and the difference between the length of the outer guide shaft (21) and the length of the air outlet (11) is in the range of -40 mm to 30 mm; A first end surface (211) and a second end surface (212) are installed opposite to each other on the outer guide shaft (21), a first side wall (111) and a second side wall (112) are installed opposite to each other on the air outlet (11), and the distance between the first end surface (211) and the first side wall (111) is equal to the distance between the second end surface (212) and the second side wall (112), 2. The air conditioner according to claim 1, wherein both the first end surface (211) and the second end surface (212) are installed between the first side wall (111) and the second side wall (112), and the maximum distance between the first end surface (211) and the first side wall (111) is 20 mm.

9. 9. The air conditioner of claim 8, wherein both the first side wall (111) and the second side wall (112) are installed between the first end surface (211) and the second end surface (212), and the maximum distance between the first side wall (111) and the first end surface (211) is 15 mm.

10. The outer guide shaft (21) is installed above the air outlet (11), A rotation groove (12) is formed on the outer surface of the intermediate frame (1), the rotation groove (12) extends along the axial direction of the outer guide shaft (21), the outer guide shaft (21) is installed in the rotation groove (12), and the rotation groove (12) restricts the outer guide shaft (21); The axial length of the outer guide shaft (21) of the air guide door (2) is equal to the axial length of the outer guide shaft (21) of the intermediate frame (1); 9. The air conditioner according to claim 8, wherein the drive wheel (31) is a gear or a pulley.

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