Sliding door driving mechanism, sliding door assembly and air conditioner

Abstract

The utility model provides a sliding door driving mechanism, a sliding door assembly and an air conditioner, and solves the technical problems that a sliding door shakes and generates abnormal sound due to sudden-change rail movement in the opening or closing movement process of the sliding door. The sliding door driving mechanism comprises a driving box and a sliding block fixedly connected with a sliding door, the driving box is provided with a first arc-shaped rail and a second arc-shaped rail, and the first arc-shaped rail and the second arc-shaped rail correspond to different circle centers and equal radiuses; the sliding block is provided with a first sliding part and a second sliding part, the first sliding part is movably arranged along the first arc-shaped track, and the second sliding part is movably arranged along the second arc-shaped track, so that the sliding door always slides to a preset position along a motion trail with an unchanged curvature direction; on the premise that only one sliding door driving mechanism is used, the sliding block does not move on the abrupt-change rail in the moving process, and shaking and abnormal sound generated by the sliding door in the air conditioner due to the abrupt-change rail can be obviously reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a sliding door drive mechanism, a sliding door assembly, and an air conditioner. Background Technology

[0002] In the prior art, air conditioners typically have a sliding door at the air outlet. The sliding door opens or closes the air outlet, which effectively prevents foreign objects from entering the air conditioner and also ensures the integrity of the air conditioner's appearance.

[0003] In existing technology, because the cabinet air conditioner unit is not a regular cylindrical structure, designing the sliding door's movement trajectory as a circular arc with constant curvature would result in a gap between the sliding door and the decorative panel when closed. Therefore, existing air conditioner designs for sliding door drive mechanisms primarily use two types of sliding door movement tracks:

[0004] One type is a sliding door with a reverse curve as its movement track. The sliding door's movement track consists of two reverse arcs, ensuring that there is a movement gap when the sliding door opens and closes, and that it pushes forward to fit seamlessly with the decorative panel when closed. However, at the tangent point of the reverse curve of the movement track, the sliding door needs to make a sudden track change (the sliding door changes abruptly at the inflection point of the movement trajectory). The rollers change from rolling friction to sliding friction, causing the sliding door to shake and produce abnormal noises.

[0005] Another type uses a linear arc track, where the sliding door's track consists of straight segments and smooth circular arc segments. This structure incorporates two drive mechanisms: one to drive the sliding door to rotate left and right along the circular arc segments, and the other to drive it to push back and forth along the straight segments, ensuring the sliding door and decorative panel are completely closed when shut. However, this structure requires two different drive mechanisms, making it complex and costly to manufacture. Furthermore, this type of track also suffers from abrupt changes in the sliding door's trajectory, causing it to vibrate and produce unusual noises.

[0006] The applicant has discovered that the prior art has at least the following technical problems: When the sliding door drive mechanism in the prior art drives the sliding door to move along the motion track, in order to ensure that there is no gap between the sliding door and the decorative panel when the sliding door is closed, the sliding door will have a sudden track movement, which will cause the sliding door to shake and produce abnormal noise, and the air conditioner will have a large noise. Utility Model Content

[0007] The purpose of this utility model is to provide a sliding door drive mechanism, a sliding door assembly, and an air conditioner to solve the technical problem in the prior art where the sliding door experiences sudden track changes during opening or closing, causing the sliding door to shake and produce abnormal noises. The various technical effects of the preferred technical solutions provided by this utility model are described in detail below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] The sliding door drive mechanism provided by this utility model includes a drive box and a slider fixedly connected to the sliding door, wherein:

[0010] The drive box is provided with a first arc-shaped track and a second arc-shaped track, the first arc-shaped track and the second arc-shaped track have different centers but the same radius;

[0011] The slider has a first sliding part and a second sliding part. The first sliding part is movable along the first arc-shaped track, and the second sliding part is movable along the second arc-shaped track, so that the sliding door always slides to the preset position along a motion trajectory with a constant curvature direction.

[0012] Preferably, the sliding door drive mechanism further includes a drive unit, a gear, and a rack, wherein:

[0013] The drive device is fixed inside the drive box, and a rack and pinion track is provided inside the drive box;

[0014] The gear is fixed to the output end of the drive device, and the gear meshes with the rack portion to drive the rack portion to move within the rack track;

[0015] The rack section has an arc-shaped structure, and the rack section is connected to the slider in a transmission manner, and the two can move relative to each other.

[0016] Preferably, the rack track is arc-shaped, and the rack track is located on the concave side of the first arc-shaped track and the second arc-shaped track;

[0017] The centers of the rack track, the first arc track, and the second arc track are all different.

[0018] Preferably, one of the rack portion and the slider is provided with a shaft, and the other is provided with an adjustment groove, wherein:

[0019] The shaft is inserted into the adjustment groove, and the plane on which the rack rests is parallel to the plane where the adjustment groove is located. When the rack moves, the shaft slides along the length direction of the adjustment groove, thereby causing relative movement between the rack and the slider.

[0020] Preferably, the slider is an arc-shaped block structure, and the first sliding part and the second sliding part are arranged at intervals around the geometric center of the slider;

[0021] The first sliding part includes a first sliding shaft and a first bushing. The first sliding shaft is fixed to the slider, and the first bushing is sleeved on the first sliding shaft.

[0022] The second sliding part includes a second sliding shaft and a second bushing. The second sliding shaft is fixed on the slider, and the second sliding shaft is fitted with a second bushing.

[0023] Preferably, the drive box is provided with a first auxiliary track and a second auxiliary track, wherein:

[0024] The first auxiliary track is an arc track concentric with the first arc track, and the radius of the first auxiliary track is different from that of the first arc track;

[0025] The second auxiliary track is an arc track concentric with the second arc track, but the radii of the second auxiliary track and the second arc track are different;

[0026] The slider is rotatably connected to a first roller and a second roller. The first roller rolls along the first auxiliary track, and the second roller rolls along the second auxiliary track.

[0027] Preferably, the slider is fixed with a first groove and a second groove, wherein:

[0028] The first groove and the second groove are arranged at intervals around the geometric center of the slider and are located on the side of the slider facing the first auxiliary track and the second auxiliary track. The upper and lower ends of the first groove and the second groove are open structures. The first roller is rotatably connected to the first groove and the second roller is rotatably connected to the second groove.

[0029] Preferably, the slider is fixedly provided with a slot, the number of the slots is one or at least two, the slot is fixed on the side of the slider opposite to the rack portion, and is used to engage and fix with the sliding door.

[0030] Preferably, the drive box includes a box body and a cover, wherein:

[0031] The box body and the cover body are detachably fixedly connected. The first arc-shaped track and the second arc-shaped track are provided on the box body. The cover body is provided with a third arc-shaped track and a fourth arc-shaped track. The third arc-shaped track has the same position and structure as the first arc-shaped track. The two ends of the first sliding part slide along the first arc-shaped track and the third arc-shaped track, respectively.

[0032] The fourth arc-shaped track has the same position and structure as the second arc-shaped track, and the two ends of the second sliding part slide along the second arc-shaped track and the fourth arc-shaped track, respectively.

[0033] This utility model also provides a sliding door assembly, including a sliding door and the aforementioned sliding door drive mechanism.

[0034] This utility model also provides an air conditioner, including a cabinet unit and the aforementioned sliding door assembly, wherein the drive box is fixed to the cabinet unit.

[0035] Compared with existing technologies, the sliding door drive mechanism, sliding door assembly, and air conditioner provided by this utility model have the following advantages: To ensure a seamless connection between the sliding door and the decorative panel when closed, the drive box is equipped with two tracks: a first arc-shaped track and a second arc-shaped track. Since the centers of the first and second arc-shaped tracks are different but their radii are equal, the slider can always slide along a trajectory with a constant curvature to a preset position, thereby opening or closing the sliding door. Using only one sliding door drive mechanism, the slider does not experience sudden track changes during movement, significantly reducing the shaking and abnormal noise caused by sudden track changes in the sliding door within the air conditioner. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is an exploded view of the sliding door drive mechanism;

[0038] Figure 2 This is a schematic diagram of the sliding door drive mechanism;

[0039] Figure 3 This is a schematic diagram of the drive box's housing structure;

[0040] Figure 4 This is a schematic diagram of the rack section;

[0041] Figure 5 This is a schematic diagram of the slider without the bushing, the first roller, and the second roller.

[0042] Figure 6 This is a schematic diagram of the slider's structure;

[0043] Figure 7 This is a schematic diagram of the cover structure of the driver box;

[0044] Figure 8 This is a schematic diagram of the first roller;

[0045] In the diagram: 1. Box body; 2. Slider; 21. First sliding part; 211. First sliding shaft; 212. First bushing; 22. Second sliding part; 221. Second sliding shaft; 222. Second bushing; 23. First roller; 231. Bearing sleeve; 232. Rotating shaft; 233. Bearing; 24. Second roller; 25. First groove; 26. Second groove; 27. Slot; 28. Adjustment groove; 31. First arc track; 32. Second arc track; 33. Rack track; 34. First auxiliary track; 35. Second auxiliary track; 41. Drive device; 42. Gear; 43. Rack part; 44. Shaft; 5. Mounting box; 6. Cover; 61. Third arc track; 62. Fourth arc track. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0047] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] In existing technologies, because the cabinet air conditioner unit is not a regular cylindrical structure, designing the sliding door's movement trajectory as a circular arc with constant curvature would result in a gap between the sliding door and the decorative panel when closed. Therefore, in the design of the sliding door drive mechanism in existing air conditioners, to ensure a seamless transition between the sliding door and the decorative panel when closed, two track segments are typically used. These segments could consist of two opposing arcs or a straight segment plus an arc segment. In these structures, the sliding door may experience abrupt changes in trajectory at the track's inflection points, causing the sliding door to vibrate and produce abnormal noise, resulting in significant noise from the air conditioner.

[0050] To address the aforementioned problems, this utility model provides a sliding door drive mechanism, a sliding door assembly, and an air conditioner. By using only one sliding door drive mechanism, the slider does not experience sudden track changes during movement, which can significantly reduce the shaking and abnormal noise caused by sudden track changes in the sliding door of the air conditioner.

[0051] The following is combined with Figures 1-8 The technical solution provided by this utility model will be described in more detail.

[0052] Example 1:

[0053] like Figures 1-8 As shown, the sliding door drive mechanism provided by this utility model includes a drive box and a slider 2 fixedly connected to a sliding door (not shown), wherein: see Figure 3 As shown, the drive box is equipped with a first arc-shaped track 31 and a second arc-shaped track 32. For details, please refer to [link / reference]. Figure 3 As shown, the drive box includes a box body 1 and a cover 6. The box body 1 and the cover 6 are detachably fixedly connected. A first arc track 31 and a second arc track 32 are set on the box body 1. The centers of the first arc track 31 and the second arc track 32 are different, but their radii are equal. The slider 2 has a first sliding part 21 and a second sliding part 22. The first sliding part 21 is movable along the first arc track 31, and the second sliding part 22 is movable along the second arc track 32, so that the sliding door always slides to the preset position along a motion trajectory with a constant curvature direction.

[0054] In this embodiment, the geometric shapes corresponding to the first arc track 31 and the second arc track 32 are arcs. For an arc, the curvature direction is usually consistent with the unit normal vector direction of the arc at that point, that is, perpendicular to the tangent direction of the curve at that point. For a circular arc, regardless of its center position, as long as the radius is the same, the curvature direction at any point is along the direction from that point to the center. Therefore, even for non-concentric circular arcs of equal diameter, their curvature directions are consistent at their respective points. That is, in this embodiment, the curvature directions of the geometric shapes corresponding to the first arc track 31 and the second arc track 32 are always the same, and the curvature direction of the slider 2's movement trajectory remains unchanged.

[0055] For details, see Figure 5 As shown in the figure, slider 2 has an arc-shaped block structure, with the first sliding part 21 and the second sliding part 22 arranged at intervals around the geometric center of slider 2.

[0056] See Figure 2 and Figure 5 As shown, the left end of slider 2 moves along the second arc-shaped track 32 via the second sliding part 22, and the right end of slider 2 moves along the first arc-shaped track 31 via the first sliding part 21. The sliding door panel is fixedly connected to slider 2 and moves with it. The curvature direction of the sliding door's trajectory remains constant; it is an arc trajectory where the magnitude of curvature changes but the direction of curvature remains constant, ensuring that the sliding door remains in a rolling state during movement without slipping, causing shaking or abnormal noise. The curvature of the sliding door panel gradually increases during the closing process, thereby gradually reducing the gap between the sliding door panel and the decorative panel, ultimately achieving a seamless fit when closed.

[0057] As an optional implementation, see Figure 1 and Figure 2 As shown, the sliding door drive mechanism also includes a drive unit 41, a gear 42, and a rack part 43. The drive unit 41 is locked in the drive box by screws or the like, and a rack track 33 is provided in the drive box. The gear 42 is fixed to the output end of the drive unit 41 and meshes with the rack part 43 to drive the rack part 43 to move in the rack track 33. The rack part 43 has an arc-shaped structure and is connected to the slider 2 in a transmission manner, and the two can move relative to each other.

[0058] The driving device 41 can be a drive motor, which drives the gear 42 to rotate, thereby driving the rack part 43 to slide along the rack track 33. The shape of the rack part 43 matches the shape of the rack track 33. Since the movement trajectories between the rack part 43 and the slider 2 are different, the distance between the rack part 43 and the slider 2 will change during the movement. Through the relative movement between the rack part 43 and the slider 2, it is possible to ensure that the rack part 43 can drive the slider 2 to move along the set arc track (first arc track 31, second arc track 32).

[0059] As an optional implementation, see Figure 3 As shown, the rack track 33 is arc-shaped and is located on the concave side of the first arc track 31 and the second arc track 32; the centers of the rack track 33, the first arc track 31 and the second arc track 32 are all different.

[0060] The rack track 33, the first arc track 31, and the second arc track 32 are all non-concentric circular arcs. The rack track 33 can guide and limit the movement of the rack part 43, thereby improving the stability of the moving structure.

[0061] To achieve a transmission connection between the rack section 43 and the slider 2, and to enable relative movement between them, as an optional implementation, see [link to implementation details]. Figure 2 , Figure 4 and Figure 5 Of the rack portion 43 and the slider 2, one is provided with a shaft 44, and the other is provided with an adjustment groove 28. In this embodiment, the shaft 44 is fixed to the side of the rack portion 43 facing the slider 2, and the adjustment groove 28 is fixed to the side of the slider 2 facing the rack portion 43. The shaft 44 is inserted into the adjustment groove 28, and the plane on which the rack portion 43 sits is parallel to the plane on which the adjustment groove 28 is located. When the rack portion 43 moves, the shaft 44 slides along the length direction of the adjustment groove 28, thereby causing relative movement between the rack portion 43 and the slider 2.

[0062] See Figure 5 As shown, the adjustment groove 28 is a long strip groove with a certain length. When the rack part 43 moves, the shaft 44 cooperates with the adjustment groove 28 to drive the slider 2 to move. Since the movement trajectories of the rack part 43 and the slider 2 are different, the shaft 44 moves along the length direction of the adjustment groove 28 in the adjustment groove 28 to adjust the distance between the rack part 43 and the slider 2, so as to realize the relative movement between the rack and the slider 2 and prevent the rack part 43 and the slider 2 from jamming.

[0063] In this embodiment, the shaft 44 and the adjusting groove 28 cooperate with each other to realize the linkage between the rack part 43 and the slider 2, allowing relative rotation between the two and ensuring that the slider 2 moves smoothly along the set arc track. This effectively solves the problem of vibration and abnormal noise caused by the sliding door changing track during movement, and reduces the number of connecting parts between the rack part 43 and the slider 2, making it easier to install and maintain, thus achieving cost reduction and efficiency improvement.

[0064] As an optional implementation, see Figure 5 and Figure 6 As shown, the first sliding part 21 includes a first sliding shaft 211 and a first bushing 212. The first sliding shaft 211 is fixed on the slider 2, and the first bushing 212 is sleeved on the first sliding shaft 211. The second sliding part 22 includes a second sliding shaft 221 and a second bushing 222. The second sliding shaft 221 is fixed on the slider 2, and the second bushing 222 is sleeved on the second sliding shaft 221.

[0065] As shown in the figure, the first bushing 212 is fitted onto the lower section of the first sliding shaft 211 and slides along the first arc track 31. The second bushing 222 is fitted onto the lower section of the second sliding shaft 221 and slides along the second arc track 32. This avoids direct contact between the slider 2 and the first arc track 31 and the second arc track 32 inside the drive box, which would cause wear and damage, and improves the movement accuracy and stability of the sliding door.

[0066] As an optional implementation, see Figure 7 As shown, the cover 6 of the drive box is provided with a third arc-shaped track 61 and a fourth arc-shaped track 62. The third arc-shaped track 61 has the same position and structure as the first arc-shaped track 31. The two ends of the first sliding part 21 slide along the first arc-shaped track 31 and the third arc-shaped track 61, respectively. The fourth arc-shaped track 62 has the same position and structure as the second arc-shaped track 32. The two ends of the second sliding part 22 slide along the second arc-shaped track 32 and the fourth arc-shaped track 62, respectively.

[0067] Specifically, the upper section of the first sliding shaft 211 and the upper section of the second sliding shaft 221 are fitted with corresponding rubber bushings to prevent direct contact and wear damage between the first sliding shaft 211 and the third arc-shaped track 61, and between the second sliding shaft 221 and the second arc-shaped track 32, thereby improving the movement accuracy and stability of the sliding door.

[0068] As an optional implementation, see Figure 2 and Figure 3As shown, the drive box is provided with a first auxiliary track 34 and a second auxiliary track 35, wherein: the first auxiliary track 34 is an arc track concentric with the first arc track 31, and the radius of the first auxiliary track 34 is different from that of the first arc track 31; the second auxiliary track 35 is an arc track concentric with the second arc track 32, and the radius of the second auxiliary track 35 is different from that of the second arc track 32; the slider 2 is rotatably connected with a first roller 23 and a second roller 24, the first roller 23 rolls along the first auxiliary track 34, and the second roller 24 rolls along the second auxiliary track 35.

[0069] During the movement of slider 2, the first sliding part 21 slides along the first arc-shaped track 31, and the second sliding part 22 slides along the second arc-shaped track 32. Simultaneously, the first auxiliary track 34 and the second auxiliary track 35 serve to limit and guide movement, ensuring that slider 2 remains in a rolling state as it passes through the first roller 23, preventing vibration and abnormal noise due to sliding. The cooperation between the first roller 23 and the first auxiliary track 34, and the cooperation between the second roller 24 and the second auxiliary track 35, enhances the load-bearing capacity and stability of slider 2 during movement.

[0070] As an optional implementation, see Figure 5 and Figure 6 As shown, a first groove 25 and a second groove 26 are fixed on the slider 2. The first groove 25 and the second groove 26 are arranged at intervals around the geometric center of the slider 2 and are located on the side of the slider 2 facing the first auxiliary track 34 and the second auxiliary track 35. The upper and lower ends of the first groove 25 and the second groove 26 are open structures. The first roller 23 is rotatably connected in the first groove 25 and the second roller 24 is rotatably connected in the second groove 26.

[0071] The first groove 25 and the second groove 26 can protect the structure of the first roller 23 and the second roller 24, and ensure that the first roller 23 and the second roller 24 rotate stably.

[0072] See Figure 8 As shown, the first roller 23 and the second roller 24 have the same structure. Taking the first roller 23 as an example, the first roller 23 includes a bearing sleeve 231, a rotating shaft 232 and a bearing 233. The rotating shaft 232 is rotatably connected to the opposite side walls of the first groove 25. The bearing sleeve 231 is sleeved on the rotating shaft 232 through the bearing 233. With this arrangement, the first roller 23 can roll in the first auxiliary track 34 when the slider 2 moves. Similarly, the second roller 24 can roll in the second auxiliary track 35 when the slider 2 moves, improving the load-bearing capacity and stability of the slider 2 during movement.

[0073] In this embodiment, the first roller 23 is rotatably connected to the first groove 25, and the second roller 24 is rotatably connected to the second groove 26, providing auxiliary support for the movement of the slider 2, improving the accuracy and stability of the sliding door movement, and enhancing product performance and service life.

[0074] As an optional implementation, see Figure 5 and Figure 6 As shown, a slot 27 is fixedly provided on the slider 2. The number of slots 27 is one or at least two. The slot 27 is fixed on the side of the slider 2 opposite to the rack portion 43, and is used to engage and fix with the sliding door. Specifically, the slot 27 engages and fixes with the protrusion on the air conditioner sliding door, thereby realizing the fixed connection between the slider 2 and the sliding door.

[0075] For details, see Figure 1 The sliding door drive mechanism in this embodiment also includes a mounting box 5. The drive box is detachably fixed to the mounting box 5. The installation method of the drive box body 1, the mounting box 5, and the drive box cover 6 is the same as that of mature technology. The upper end of the body 1 is designed with multiple protrusions and screw holes, which cooperate with the grooves on the cover 6 and are fixed by screws. The lower end of the body 1 is designed with multiple grooves and screw holes, which cooperate with the protrusions on the mounting box 5 and are also fixed by screws.

[0076] For the sliding door drive mechanism in this embodiment, see [link / reference]. Figure 2 , Figure 3 As shown, the drive device 41 drives the rack part 43 to move through the gear 42. The rack part 43 slides along the rack track 33. At the same time, the shaft 44 on the rack part 43 cooperates with the adjustment groove 28 to drive the slider 2. Under the drive of the rack part 43, the first sliding part 21 at one end of the slider 2 slides along the first arc track 31, and the second sliding part 22 at the other end of the slider 2 slides along the second arc track 32. Since the radii of the geometric shapes corresponding to the first arc track 31 and the second arc track 32 are the same but the centers are different, that is, the curvature directions of the two are always the same, the curvature direction of the movement trajectory of the slider 2 remains unchanged. It is an arc trajectory with a change in curvature magnitude but a constant curvature direction, which ensures that the sliding door is always in a rolling state during the movement and will not slide, causing shaking and abnormal noise. The curvature of the sliding door panel will gradually increase during the sliding door closing process, thereby gradually reducing the gap between the sliding door panel and the decorative panel, and finally achieving a seamless fit in the closed state. Furthermore, when the slider 2 moves, the first roller 23 rolls along the first auxiliary track 34, and the second roller 24 rolls along the second auxiliary track 35. The first auxiliary track 34 is concentric with the first arc track 31, and the second auxiliary track 35 is concentric with the second arc track 32. The sliding and rolling movements will not interfere with each other, which can improve the load-bearing capacity of the slider 2, improve the stability of the slider 2 during movement, and improve the service life of the sliding door.

[0077] Example 2:

[0078] This embodiment provides a sliding door assembly, including a sliding door and the aforementioned sliding door drive mechanism. The sliding door is fixedly connected to the slider 2, reducing the vibration and abnormal noise caused by sliding during the movement of the sliding door while using only one sliding door drive mechanism.

[0079] Example 3:

[0080] This embodiment provides an air conditioner, including a cabinet unit and the aforementioned sliding door assembly, with the drive box fixed to the cabinet unit.

[0081] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.

[0082] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sliding door drive mechanism, characterized in that, Includes a drive box and a slider fixedly connected to the sliding door, wherein: The drive box is provided with a first arc-shaped track and a second arc-shaped track, the first arc-shaped track and the second arc-shaped track have different centers but the same radius; The slider has a first sliding part and a second sliding part. The first sliding part is movable along the first arc-shaped track, and the second sliding part is movable along the second arc-shaped track, so that the sliding door always slides to the preset position along a motion trajectory with a constant curvature direction.

2. The sliding door drive mechanism according to claim 1, characterized in that, The sliding door drive mechanism further includes a drive unit, gears, and a rack, wherein: The drive device is fixed inside the drive box, and a rack and pinion track is provided inside the drive box; The gear is fixed to the output end of the drive device, and the gear meshes with the rack portion to drive the rack portion to move within the rack track; The rack section has an arc-shaped structure, and the rack section is connected to the slider in a transmission manner, and the two can move relative to each other.

3. The sliding door drive mechanism according to claim 2, characterized in that, The rack track is arc-shaped and is located on the concave side of the first arc-shaped track and the second arc-shaped track; The centers of the rack track, the first arc track, and the second arc track are all different.

4. The sliding door drive mechanism according to claim 2, characterized in that, Of the rack and the slider, one is provided with a shaft, and the other is provided with an adjustment groove, wherein: The shaft is inserted into the adjustment groove, and the plane on which the rack rests is parallel to the plane where the adjustment groove is located. When the rack moves, the shaft slides along the length direction of the adjustment groove, thereby causing relative movement between the rack and the slider.

5. The sliding door drive mechanism according to claim 1, characterized in that, The slider has an arc-shaped block structure, and the first sliding part and the second sliding part are arranged at intervals around the geometric center of the slider; The first sliding part includes a first sliding shaft and a first bushing. The first sliding shaft is fixed to the slider, and the first bushing is sleeved on the first sliding shaft. The second sliding part includes a second sliding shaft and a second bushing. The second sliding shaft is fixed on the slider, and the second sliding shaft is fitted with a second bushing.

6. The sliding door drive mechanism according to claim 1, characterized in that, The drive box is provided with a first auxiliary track and a second auxiliary track, wherein: The first auxiliary track is an arc track concentric with the first arc track, and the radius of the first auxiliary track is different from that of the first arc track; The second auxiliary track is an arc track concentric with the second arc track, but the radii of the second auxiliary track and the second arc track are different; The slider is rotatably connected to a first roller and a second roller. The first roller rolls along the first auxiliary track, and the second roller rolls along the second auxiliary track.

7. The sliding door drive mechanism according to claim 6, characterized in that, The slider is fixed with a first groove and a second groove, wherein: The first groove and the second groove are arranged at intervals around the geometric center of the slider and are located on the side of the slider facing the first auxiliary track and the second auxiliary track. The upper and lower ends of the first groove and the second groove are open structures. The first roller is rotatably connected to the first groove and the second roller is rotatably connected to the second groove.

8. The sliding door drive mechanism according to claim 2, characterized in that, The slider is fixedly provided with a slot, and the number of the slots is one or at least two. The slots are fixed on the side of the slider opposite to the rack portion, and are used to engage and fix with the sliding door.

9. The sliding door drive mechanism according to claim 1, characterized in that, The drive box includes a box body and a cover, wherein: The box body and the cover body are detachably fixedly connected. The first arc-shaped track and the second arc-shaped track are provided on the box body. The cover body is provided with a third arc-shaped track and a fourth arc-shaped track. The third arc-shaped track has the same position and structure as the first arc-shaped track. The two ends of the first sliding part slide along the first arc-shaped track and the third arc-shaped track, respectively. The fourth arc-shaped track has the same position and structure as the second arc-shaped track, and the two ends of the second sliding part slide along the second arc-shaped track and the fourth arc-shaped track, respectively.

10. A sliding door assembly, characterized in that, Includes a sliding door and the sliding door drive mechanism as described in any one of claims 1-9.

11. An air conditioner, characterized in that, It includes a cabinet unit and the sliding door assembly as described in claim 10, wherein the drive box is fixed to the cabinet unit.

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