Driving mechanism for air guide plate of air conditioner, air conditioner

Abstract

The present application relates to the technical field of air conditioning, and discloses a driving mechanism for an air guide plate of an air conditioner, and an air conditioner. The driving mechanism includes: a first connecting rod, provided with a first recess, the first recess being provided with a first gear tooth; a second connecting rod, provided with a first protrusion, the first protrusion being provided with a second gear tooth; a first gear meshing with the first gear tooth to drive the first connecting rod to perform telescopic movement along the length direction of the air duct; a second gear meshing with the second gear tooth to drive the second connecting rod to perform telescopic movement along the length direction of the air duct; wherein, when the air guide plate is in the closed position, the first recess corresponds to the first protrusion, so that when the first gear meshes with the first recess and the second gear meshes with the first protrusion, the first connecting rod and the second connecting rod can have different movement speeds, thereby realizing the movement of the air guide plate. By setting the shapes of the first connecting rod and the second connecting rod, a variety of air guide positions of the air guide plate can be achieved, with a simple structure and high reliability.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a driving mechanism for an air guide plate of an air conditioner and an air conditioner. Background Art

[0002] At present, in the related art, when the wind guide plate swings, the rotation center is fixed, which cannot realize various wind guide functions and cannot meet the use needs of users.

[0003] The related technology discloses a driving mechanism of an air guide mechanism, which is provided with a first connecting rod and a second connecting rod. The first connecting rod is movably provided in a shell along the extension direction of the air outlet channel, one end of the second connecting rod is rotatably connected to the end of the first connecting rod close to the air outlet, and the other end extends toward the air outlet. The air guide plate is connected to the end of the second connecting rod away from the first connecting rod, and is combined with the first driving component to drive the first connecting rod to move, and the second driving component to drive the second connecting rod to rotate relative to the first connecting rod. The rotation center of the air guide plate can be made variable, and the swing angle of the air guide plate and the position relative to the air-conditioning shell can be adjusted. It has a variety of different air guiding functions, so that the air conditioner can have more air outlet methods to meet the different needs of users.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] The related art can realize multiple positions of the air deflector, but requires the provision of a first connecting rod, a second connecting rod and a third connecting rod, and the first connecting rod and the second connecting rod need to be rotatably connected, resulting in a complex driving mechanism and low reliability.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to ordinary technicians in this field. Summary of the Invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a driving mechanism for an air guide plate of an air conditioner and an air conditioner, so as to solve the problems of complex driving mechanisms and low reliability in related technologies.

[0009] According to a first aspect of an embodiment of the present invention, a driving mechanism for an air guide plate of an air conditioner is provided, wherein the indoor unit of the air conditioner comprises a shell and an air guide plate, the shell defines an air outlet duct and is provided with an air outlet connected to the air outlet duct, and the air guide plate is movably arranged at the air outlet; the driving mechanism comprises: a first connecting rod, which is configured to be movably connected to the air guide plate and to perform telescopic movement along the length direction of the air duct, the first connecting rod is provided with a first recess, and the first recess is provided with a first gear tooth; a second connecting rod is configured to be movably connected to the air guide plate and to perform telescopic movement along the length direction of the air duct, and the second connecting rod is provided with a first recess The rod is provided with a first convex portion, and the first convex portion is provided with a second gear tooth; the first gear is engaged with the first gear tooth to drive the first connecting rod to perform telescopic movement along the length direction of the air duct; the second gear is engaged with the second gear tooth to drive the second connecting rod to perform telescopic movement along the length direction of the air duct; wherein, when the air guide plate is in the closed position, the first concave portion corresponds to the first convex portion, so that when the first gear is engaged with the first concave portion and the second gear is engaged with the first convex portion, the first connecting rod and the second connecting rod can have different movement speeds to realize the movement of the air guide plate.

[0010] According to a second aspect of an embodiment of the present invention, an air conditioner is provided, comprising: a driving mechanism for an air guide plate of an air conditioner as described in any one of the above embodiments; an indoor unit, comprising a shell and an air guide plate, the shell defining an air outlet duct and being provided with an air outlet connected to the air outlet duct, the air guide plate being movably provided at the air outlet, and the driving mechanism being provided in the shell and drivingly connected to the air guide plate.

[0011] The driving mechanism for the air guide plate of an air conditioner and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0012] A first concave portion is provided on the first connecting rod, and a first convex portion is provided on the second connecting rod. When the air deflector is in the closed position, the first concave portion corresponds to the first convex portion, i.e., the first connecting rod and the second connecting rod have different shapes. Thus, when the first gear meshes with the first concave portion and the second gear meshes with the first convex portion, the first connecting rod and the second connecting rod can have different telescopic movement speeds. Both the first connecting rod and the second connecting rod are movably connected to the air deflector. When the first connecting rod and the second connecting rod have different telescopic movement speeds, the air deflector can be positioned in a variety of different air guide positions, thereby achieving a variety of different air outlet modes.

[0013] The present application realizes a variety of wind guide positions of the wind guide plate by setting the shapes of the first connecting rod and the second connecting rod. There is no need to set the second connecting rod in the related art, and there is no hinge between the first connecting rod and the second connecting rod, so the structure is simple and the reliability is high.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0016] Figure 1 This is a schematic structural diagram of a driving mechanism provided by an embodiment of the present disclosure when an air deflector is in a closed position from a first perspective;

[0017] Figure 2 is a structural schematic diagram of a driving mechanism provided by an embodiment of the present disclosure when an air deflector is in a closed position from a second perspective;

[0018] Figure 3 This is a structural schematic diagram of an assembly structure of a first gear, a second gear, and a fourth gear from a first perspective when an air deflector provided by an embodiment of the present disclosure is in a closed position;

[0019] Figure 4 is a structural schematic diagram of an assembly structure of a first gear, a second gear, and a fourth gear from a second perspective when an air deflector provided by an embodiment of the present disclosure is in a closed position;

[0020] Figure 5 is a structural schematic diagram of a driving mechanism from a first perspective when an air deflector provided by an embodiment of the present disclosure is in a first open position;

[0021] Figure 6 is a structural schematic diagram of a driving mechanism from a second perspective when an air deflector provided by an embodiment of the present disclosure is in a first open position;

[0022] Figure 7 is a structural schematic diagram of a driving mechanism from a first perspective when an air deflector provided by an embodiment of the present disclosure is in a second open position;

[0023] Figure 8 is a structural schematic diagram of a driving mechanism from a second perspective when an air deflector provided by an embodiment of the present disclosure is in a second open position;

[0024] Figure 9 This is a schematic diagram of a process in which a first connecting rod drives an air guide plate according to an embodiment of the present disclosure;

[0025] Figure 10 Schematic diagram of a process of driving an air deflector by a second connecting rod according to an embodiment of the present disclosure;

[0026] Figure 11 is a schematic diagram of the matching structure of a first connecting rod and a first gear provided by an embodiment of the present disclosure;

[0027] Figure 12is a schematic diagram of the matching structure of a second connecting rod and a second gear provided by an embodiment of the present disclosure;

[0028] Figure 13 This is a schematic structural diagram of a box body from a first perspective provided by an embodiment of the present disclosure;

[0029] Figure 14 yes Figure 13 Cross-sectional view in the FF direction;

[0030] Figure 15 This is a schematic structural diagram of a box body from a second viewing angle provided by an embodiment of the present disclosure;

[0031] Figure 16 is a schematic structural diagram of a first side wall provided by an embodiment of the present disclosure;

[0032] Figure 17 It is a schematic structural diagram of the second side wall provided in an embodiment of the present disclosure.

[0033] Reference numerals:

[0034] 10. First connecting rod; 101. First front drive portion; 102. First recess; 103. Second protrusion; 104. First gear tooth; 105. Sliding shaft; 106. First limiting portion; 107. First limiting rib; 108. First flange; 20. Second connecting rod; 201. Second front drive portion; 202. First protrusion; 203. Second recess; 204. Second gear tooth; 205. Second limiting portion; 206. Second limiting rib; 207. Second flange; 30. Air guide plate; 301. Air guide surface; 302. Protrusion; 303. Slide groove; 3031. First endpoint; 3032. Second endpoint; 304. Rotation connection point; 40. Power source; 401. Drive Part; 402, transmission part; 4021, third gear; 4022, fourth gear; 403, transmission shaft; 50, first gear; 501, first radius changing section; 502, first radius constant section; 503, third radius constant section; 60, second gear; 601, second radius changing section; 602, second radius constant section; 603, fourth radius constant section; 70, box body; 701, first side wall; 702, second side wall; 703, first limiting fitting portion; 704, second limiting fitting portion; 705, second limiting groove; 706, first groove; 707, second groove; 708, first limiting groove; 100, shell; 1001, air outlet. DETAILED DESCRIPTION

[0035] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0036] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0037] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to having a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0038] Furthermore, the terms "disposed," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal connection between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the embodiments of this disclosure based on the specific circumstances.

[0039] Unless otherwise stated, the term "plurality" means two or more.

[0040] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0041] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0043] Combine Figure 1-8 As shown, an embodiment of the present disclosure provides a driving mechanism for an air guide plate 30 of an air conditioner.

[0044] The air conditioner includes an indoor unit and an outdoor unit, which are connected by a connecting pipe to realize the circulation of refrigerant between the indoor unit and the outdoor unit.

[0045] The indoor unit includes a housing 100, which defines an air duct and includes an air inlet and an air outlet 1001 connected to the duct. A heat exchanger and a fan are located within the duct. Driven by the fan, air enters through the air inlet, exchanges heat with the heat exchanger, and is then blown out through the air outlet 1001.

[0046] The indoor unit further includes an air guide plate 30 , which is movably disposed at the air outlet 1001 for opening or closing the air outlet 1001 .

[0047] The driving mechanism is connected to the air guide plate 30 for driving the air guide plate 30 to move relative to the air outlet 1001 to open or close the air outlet 1001 .

[0048] like Figure 1 and Figure 2 As shown, the driving mechanism includes a first connecting rod 10 , a second connecting rod 20 and a driving structure. The driving structure includes a first gear 50 and a second gear 60 .

[0049] The first connecting rod 10 is configured to be movably connected to the air guide plate 30 and to perform telescopic movement along the length direction of the air duct. The first connecting rod 10 is provided with a first recess 102, and the first recess 102 is provided with a first gear tooth 104; the second connecting rod 20 is configured to be movably connected to the air guide plate 30 and to perform telescopic movement along the length direction of the air duct. The second connecting rod 20 is provided with a first protrusion 202, and the first protrusion 202 is provided with a second gear tooth 204. The first gear 50 is engaged with the first gear tooth 104 to drive the first connecting rod 10 to perform telescopic movement along the length direction of the air duct. The second gear 60 is engaged with the second gear tooth 204 to drive the second connecting rod 20 to perform telescopic movement along the length direction of the air duct; wherein, as Figure 1 and Figure 2 When the air deflector 30 is in the closed position, the first concave portion 102 corresponds to the first convex portion 202 , so that the first connecting rod 10 and the second connecting rod 20 can have different movement speeds to achieve the movement of the air deflector 30 .

[0050] The surface of the first connecting rod 10 facing the first gear 50 is recessed to form a first recessed portion 102 , and the surface of the second connecting rod 20 facing the second gear 60 is protruded to form a first protruding portion 202 .

[0051] A first recess 102 is provided on the first connecting rod 10, and a first protrusion 202 is provided on the second connecting rod 20. When the air deflector 30 is in the closed position, the first recess 102 corresponds to the first protrusion 202, i.e., the first connecting rod 10 and the second connecting rod 20 have different shapes. Thus, when the first gear 50 engages with the first recess 102 and the second gear 60 engages with the first protrusion 202, the first connecting rod 10 and the second connecting rod 20 can achieve different telescopic movement speeds. Both the first connecting rod 10 and the second connecting rod 20 are movably connected to the air deflector 30. When the first connecting rod 10 and the second connecting rod 20 have different telescopic movement speeds, the air deflector 30 can be positioned in a variety of different air guide positions, thereby achieving a variety of different air outlet modes.

[0052] The wind deflector 30 can be opened to Figure 5 and Figure 6 The first open position in the Figure 7 and Figure 8 In the first open position, the air guide surface 301 of the air guide plate 30 faces downward, so that hot air blows downward; in the second open position, the air guide surface 301 of the air guide plate 30 faces upward, so that cold air blows upward, preventing cold air from blowing directly.

[0053] Optionally, the first connecting rod 10 further comprises a second protrusion 103. The second protrusion 103 and the first recess 102 are sequentially arranged along the direction in which the first connecting rod 10 extends out of the air duct, i.e., the first recess 102 is located between the second protrusion 103 and the air deflector 30. The second protrusion 103 is provided with first gear teeth 104. The second connecting rod 20 further comprises a second recess 203. The second recess 203 and the first protrusion 202 are sequentially arranged along the direction in which the second connecting rod 20 extends out of the air duct, i.e., the first protrusion 202 is located between the second recess 203 and the air deflector 30. The second recess 203 is provided with second gear teeth 204. When the air deflector 30 is in the closed position, the second protrusion 103 and the second recess 203 correspond to each other, enabling the first connecting rod 10 and the second connecting rod 20 to have different movement speeds when the first gear 50 engages with the second protrusion 103 and the second gear 60 engages with the second recess 203.

[0054] The surface of the first connecting rod 10 facing the first gear 50 is convex toward the first gear 50 to form a second convex portion 103 , and the surface of the second connecting rod 20 facing the second gear 60 is concave to form a second concave portion 203 .

[0055] like Figure 1 and Figure 2In the embodiment, when the air guide plate 30 is in the closed position, the first concave portion 102 corresponds to the first convex portion 202, and the second convex portion 103 corresponds to the second concave portion 203, so that the corresponding portions of the first connecting rod 10 and the second connecting rod 20 have different shapes.

[0056] During the opening process of the air deflector 30, the first gear 50 first meshes with the first recess 102, at which point the second gear 60 meshes with the first protrusion 202. Subsequently, the first gear 50 meshes with the second protrusion 103, at which point the second gear 60 meshes with the second recess 203. The arrangement of the first recess 102, the first protrusion 202, the second recess 203, and the second protrusion 103 allows the first connecting rod 10 and the second connecting rod 20 to have different shapes. This allows the first connecting rod 10 and the second connecting rod 20 to have different movement speeds when the first connecting rod 10 meshes with the first gear 50 and the second connecting rod 20 meshes with the second gear 60. Both the first connecting rod 10 and the second connecting rod 20 are movably connected to the air deflector 30, so the differential movement of the first connecting rod 10 and the second connecting rod 20 enables the air deflector 30 to have multiple air guide positions, allowing the air conditioner to achieve multiple air outlet modes.

[0057] The first recess 102 and the second protrusion 103 are both driven by the first gear 50. When the first recess 102 is engaged with the first gear 50, the distance between the first recess 102 and the rotation axis of the first gear 50 is greater than the distance between the second protrusion 103 and the rotation axis of the first gear 50 when the second protrusion 103 is engaged with the first gear 50. The radius of the first gear 50 that is engaged with the first recess 102 is greater than the radius of the first gear 50 that is engaged with the second protrusion 103. When the angular velocity of the first gear 50 is equal, the movement speed of the first connecting rod 10 when the first recess 102 is engaged with the first gear 50 is greater than the movement speed of the first connecting rod 10 when the second protrusion 103 is engaged with the first gear 50.

[0058] The first protrusion 202 and the second recess 203 are both driven by the second gear 60. When the first protrusion 202 is engaged with the second gear 60, the distance between the rotation axis of the first protrusion 202 and the second gear 60 is smaller than the distance between the rotation axis of the second recess 203 and the second gear 60 when the second recess 203 is engaged with the second gear 60. The radius of the part on the second gear 60 that is engaged with the first protrusion 202 is smaller than the radius of the part on the second gear 60 that is engaged with the second recess 203. When the angular velocity of the second gear 60 is equal, the movement speed of the second connecting rod 20 when the first protrusion 202 is engaged with the second gear 60 is smaller than the movement speed of the second connecting rod 20 when the second recess 203 is engaged with the second gear 60.

[0059] In a specific embodiment, when the first recess 102 is engaged with the first gear 50, the movement speed of the first connecting rod 10 is greater than the movement speed of the second connecting rod 20 when the first protrusion 202 is engaged with the second gear 60, and when the second protrusion 103 is engaged with the first gear 50, the movement speed of the first connecting rod 10 is less than the movement speed of the second connecting rod 20 when the second recess 203 is engaged with the second gear 60, so that the air guide plate 30 can be flipped in different directions.

[0060] Optionally, the first connecting rod 10 is further provided with a first front-drive portion 101, and the first recess 102 and the first front-drive portion 101 are arranged in sequence along the direction in which the first connecting rod 10 extends out of the air duct, that is, the first front-drive portion 101 is located between the first recess 102 and the air guide plate 30, and the first front-drive portion 101 is provided with a first gear tooth 104; the second connecting rod 20 is further provided with a second front-drive portion 201, and the first convex portion 202 and the second front-drive portion 201 are arranged in sequence along the direction in which the second connecting rod 20 extends out of the air duct, that is, the second front-drive portion 201 is located between the first convex portion 202 and the air guide plate 30, and the second front-drive portion 201 is provided with a second gear tooth 204; wherein, when the air guide plate 30 is in the closed position, the first front-drive portion 101 and the second front-drive portion 201 correspond to each other.

[0061] The absolute value of the difference between the movement speed of the first connecting rod 10 when the first front drive part 101 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the second front drive part 201 is engaged with the second gear 60 is less than the preset difference, that is, the movement speed of the first connecting rod 10 when the first front drive part 101 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the second front drive part 201 is engaged with the second gear 60 are close.

[0062] The air deflector passes through the extended position, the first open position and the second open position in sequence during the opening process. In the extended position, the air deflector surface faces the air outlet.

[0063] When the movement speed of the first connecting rod 10 when the first front drive part 101 is engaged with the first gear 50 is equal to the movement speed of the second connecting rod 20 when the second front drive part 201 is engaged with the second gear 60, the air guide plate 30 is pushed out in the direction away from the air outlet 1001, and there is no flipping movement, which can prevent the air guide plate 30 from flipping and interfering with the side wall of the air duct or the shell 100. At this time, the air guide plate reaches the extended position.

[0064] When the absolute value of the difference between the movement speed of the first connecting rod 10 when the first front drive part 101 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the second front drive part 201 is engaged with the second gear 60 is greater than zero and less than the preset difference, the air guide plate 30 is pushed out in the direction away from the air outlet 1001 and flipped at the same time. Since the air guide plate 30 is pushed out in the direction away from the air outlet 1001 while flipping, it can also avoid interference between the air guide plate 30 and the side wall of the air duct or the shell 100 during movement. At this time, the air guide plate reaches the extended position.

[0065] Among them, the absolute value of the difference between the movement speed of the first connecting rod 10 when the first recess 102 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the first protrusion 202 is engaged with the second gear 60 is greater than the preset difference, so that when the first recess 102 is engaged with the first gear 50 and the first protrusion 202 is engaged with the second gear 60, the speed difference between the first connecting rod 10 and the second connecting rod 20 is large, which can realize the flipping of the air guide plate 30 and realize multiple air-guiding positions of the air guide plate 30.

[0066] The absolute value of the difference between the movement speed of the first connecting rod 10 when the second protrusion 103 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the second recess 203 is engaged with the second gear 60 is greater than the preset difference, so that when the second protrusion 103 is engaged with the first gear 50 and the second recess 203 is engaged with the second gear 60, the speed difference between the first connecting rod 10 and the second connecting rod 20 is large, which can realize the flipping of the air guide plate 30 and realize multiple air-guiding positions of the air guide plate 30.

[0067] For example, at least one of the first front-drive portion 101 and the second front-drive portion 201 is straight. For another example, both the first front-drive portion 101 and the second front-drive portion 201 are curved, but the curvature of the first front-drive portion 101 is smaller than the curvature of the first concave portion 102, and the curvature of the second front-drive portion 201 is smaller than the curvature of the first convex portion 202. The shapes of the first gear 50 and the second gear 60 are conveniently designed so that the absolute value of the difference between the movement speed of the first connecting rod 10 when the first front-drive portion 101 is engaged with the first gear 50 and the movement speed of the second connecting rod 20 when the second front-drive portion 201 is engaged with the second gear 60 is smaller than a preset difference.

[0068] Optionally, the first gear 50 and the second gear 60 are both non-circular, so that the first gear 50 can engage with the first precursor 101, the first recess 102, and the second protrusion 103, and the second gear 60 can engage with the second precursor 201, the first protrusion 202, and the second recess 203.

[0069] like Figure 3 and Figure 4As shown, the first gear 50 has different radii at the meshing locations with the first precursor portion 101 , the first recess 102 , and the second convex portion 103 ; the second gear 60 has different radii at the meshing locations with the second precursor portion 201 , the first convex portion 202 , and the second recess 203 .

[0070] Optionally, the rotation axes of the first gear 50 and the second gear 60 coincide with each other, so that the first gear 50 and the second gear 60 can be driven by one power source 40 , thereby simplifying the structure of the driving mechanism.

[0071] The first gear 50 and the second gear 60 rotate synchronously. On the one hand, it is convenient for the first gear 50 and the second gear 60 to be driven by a power source 40. On the other hand, the first gear 50 and the second gear 60 have the same angular velocity. The first gear 50 and the second gear 60 are designed to have different radii, so that the differential motion of the first connecting rod 10 and the second connecting rod 20 can be realized, thereby simplifying the structure of the driving structure.

[0072] Optionally, the first gear 50 is provided with a first radius changing section 501; the second gear 60 is provided with a second radius changing section 601. When the first radius changing section 501 is engaged with the first gear teeth, the second radius changing section 601 is engaged with the second gear teeth. Specifically, the first radius changing section 501 cooperates with the first recessed portion 102, and the second radius changing section 601 cooperates with the first protruding portion 202.

[0073] Among them, the change trend of the radius of the first gear 50 in the first radius change section 501 is opposite to the change trend of the radius of the second gear 60 in the second radius change section 601, so that the movement speeds of the first connecting rod and the second connecting rod are not equal, thereby realizing the flipping of the air guide plate.

[0074] Optionally, the radius of the first gear 50 in the first radius change section 501 first increases and then decreases, and the corresponding radius of the first connecting rod first increases and then decreases to form a first recess 102. The radius of the second gear 60 in the second radius change section 601 first decreases and then increases, and the corresponding radius of the second connecting rod first decreases and then increases to form a first convex portion 202, so that the first radius change section 501 is engaged with the first concave portion 102, and the second radius change section 601 is engaged with the first convex portion 202 during the opening process of the air guide plate.

[0075] If the radius of the first gear 50 continues to increase, the rotation angle of the first connecting rod increases under the drive of the first gear 50, and the first gear 50 and the second gear 60 rotate synchronously, resulting in an increase in the rotation angle of the second gear 60. When the difference in the movement stroke between the first connecting rod and the second connecting rod is certain, the second connecting rod requires a larger rotation angle, which will cause the second connecting rod to be limited by the internal space size of the indoor unit.

[0076] Optionally, the first gear 50 is further provided with a first constant radius section 502. During the opening process of the air guide plate, the first constant radius section 502 and the first variable radius section 501 are meshed with the first gear teeth in sequence. The radius value of the first constant radius section 502 remains constant, and the radius value within the first constant radius section 502 is equal to the initial radius value of the first variable radius section 501. The second gear 60 is further provided with a second constant radius section 602. The radius value of the second constant radius section 602 remains constant. During the opening process of the air guide plate, the second constant radius section 602 and the second variable radius section 601 are meshed with the second gear teeth in sequence. The radius value within the second constant radius section 602 is equal to the initial radius value of the second variable radius section 601.

[0077] When the first constant radius section 502 meshes with the first gear teeth, the second constant radius section 602 meshes with the second gear teeth, and the absolute value of the difference in movement speed between the first connecting rod and the second connecting rod is less than a preset difference. Specifically, when the air deflector is opened, the first constant radius section 502 meshes with the first front drive portion 101, and the second constant radius section 602 meshes with the second front drive portion 201.

[0078] When the radius value of the first constant radius section 502 remains constant, the radius of the first precursor portion 101 remains constant, so that the first constant radius section 502 is meshed with the first precursor portion 101; when the radius value of the second constant radius section 602 remains constant, the radius of the second precursor portion 201 remains constant, so that the second constant radius section 602 is meshed with the second precursor portion 201.

[0079] Optionally, the first gear 50 is further provided with a third constant radius section 503. During the opening process of the air guide plate, the first radius changing section 501 and the third constant radius section 503 are sequentially meshed with the first gear teeth, and the radius value within the third constant radius section 503 is equal to the radius end value of the first radius changing section 501; the second gear 60 is further provided with a fourth constant radius section 603. During the opening process of the air guide plate, the second radius changing section 601 and the fourth constant radius section 603 are sequentially meshed with the second gear teeth, and the radius value within the fourth constant radius section 603 is equal to the radius end value of the second radius changing section 601.

[0080] When the third constant radius section 503 is meshed with the first gear teeth, the fourth constant radius section 603 is meshed with the second gear teeth. Specifically, the third constant radius section 503 is meshed with the second convex portion 103 , and the fourth constant radius section 603 is meshed with the second concave portion 203 .

[0081] When the radius value of the third constant radius section 503 remains constant, the corresponding radius value of the second convex portion 103 remains constant, so that the third constant radius section 503 engages with the second convex portion 103; when the radius value of the fourth constant radius section 603 remains constant, the corresponding radius value of the second concave portion 203 remains constant, so that the fourth constant radius section 603 engages with the second concave portion 203.

[0082] Alternatively, as Figures 1 to 4 As shown, the driving structure also includes a power source 40, which is driven and connected to the first gear 50 and the second gear 60. The power source 40 includes a driving member 401 and a transmission member 402. The driving member 401 is driven and connected to the transmission member 402, and the transmission member 402 cooperates with the first gear 50 and the second gear 60 so that the driving member 401 drives the first gear 50 and the second gear 60 to move synchronously through the transmission member 402.

[0083] The transmission member 402 cooperates with the first gear 50 and the second gear 60 at the same time, so that the power source 40 can simultaneously drive the first gear 50 and the second gear 60 to move through the transmission member 402, thereby achieving synchronous movement of the first gear 50 and the second gear 60.

[0084] Optionally, the transmission member 402 includes a third gear 4021 and a fourth gear 4022 .

[0085] The third gear 4021 is drivingly connected to the driving member 401 ; the fourth gear 4022 is meshed with the third gear 4021 , and is connected to both the first gear 50 and the second gear 60 .

[0086] The driving member 401 includes a single motor. The motor is drivingly connected to the third gear 4021 to drive the third gear 4021 to rotate. The third gear 4021 meshes with the fourth gear 4022 to drive the fourth gear 4022 to rotate. The first gear 50 and the second gear 60 are both connected to the fourth gear 4022, so that the fourth gear 4022 drives the first gear 50 and the second gear 60 to rotate.

[0087] It can be understood that the number of motors can also be multiple, and the number of corresponding third gears and fourth gears can also be multiple.

[0088] The rotation axes of the first gear 50, the second gear 60 and the fourth gear 4022 are parallel or coincident. On the one hand, this makes the overall structure composed of the first gear 50, the second gear 60 and the fourth gear 4022 compact and occupies little space; on the other hand, it is convenient for the fourth gear 4022 to drive the first gear 50 and the second gear 60 to rotate synchronously.

[0089] In a specific embodiment, the drive mechanism also includes a transmission shaft 403, which passes through the first gear 50, the second gear 60 and the fourth gear 4022 to achieve the connection between the first gear 50, the second gear 60 and the fourth gear 4022, and the transmission shaft 403 forms the rotation axis of the first gear 50, the second gear 60 and the fourth gear 4022.

[0090] Alternatively, as Figure 4 and Figure 5 As shown, the first gear 50 and the second gear 60 are respectively located on two opposite sides of the fourth gear 4022 , or the first gear 50 and the second gear 60 may be located on the same side of the fourth gear 4022 .

[0091] Optionally, the first gear 50 and the second gear 60 are both eccentrically arranged on the power source 40, so that when the first gear 50 is respectively engaged with the first precursor 101, the first recess 102 and the second protrusion 103, the first connecting rod 10 can have different movement speeds, and when the second gear 60 is respectively engaged with the second precursor 201, the first protrusion 202 and the second recess 203, the second connecting rod 20 can have different movement speeds.

[0092] Optionally, one of the first link 10 and the second link 20 is configured to be slidably connected to the wind deflector 30, and the other is configured to be rotatably connected to the wind deflector 30, and a rotation connection point 304 is formed at the rotation connection to enable the first link 10 and the second link 20 to cooperate with each other, so that the wind deflector 30 can have a first open position and a second open position.

[0093] One of the first connecting rod 10 and the air deflector 30 is provided with a protrusion 302, a sliding groove 303 is formed on the protrusion 302, and the other is provided with a sliding shaft 105, which is located in the sliding groove 303 and is slidably connected to the sliding groove 303 to achieve a sliding connection between the first connecting rod 10 and the air deflector 30. Figure 1 As shown, a sliding shaft 105 is provided on the first connecting rod 10 , a protrusion 302 is provided on the wind guide surface 301 , a sliding groove 303 is formed on the protrusion 302 , and the sliding groove 303 extends along the width direction of the wind guide surface 301 .

[0094] Optionally, the two endpoints of the slide groove 303 in the length direction are respectively the first endpoint 3031 and the second endpoint 3032, and the first endpoint 3031 coincides with the positive projection of the rotating connection point 304 on the cross section of the wind guide plate, so that the first connecting rod and the second connecting rod cooperate to achieve the wind guide plate having a first open position and a second open position, wherein in the first open position, the wind guide surface of the wind guide plate faces downward, and in the second open position, the wind guide surface of the wind guide plate faces upward.

[0095] The cross section of the air deflector refers to the plane perpendicular to the length direction of the air deflector, that is, Figure 1 、 Figure 9-11 The orthographic projections of the first endpoint 3031 and the rotation connection point 304 on the cross section of the air deflector coincide, that is, the line connecting the first endpoint 3031 and the rotation connection point 304 is parallel to the length direction of the air deflector.

[0096] Optionally, the rotation connection point 304 deviates from the center of the cross section of the wind deflector through the rotation connection point 304, for example Figure 1 The middle rotation connection point 304 is located above the center of the cross section of the air guide plate passing through the rotation connection point 304 . It is understood that the middle rotation connection point 304 may also be located below the center.

[0097] Optionally, the line connecting the second endpoint 3032 and the first endpoint 3031 is on the same cross section of the air guide plate, that is, the line connecting the second endpoint 3032 and the first endpoint 3031 extends along the height direction of the air guide plate.

[0098] Optionally, the second endpoint 3032 deviates from the center of the cross section of the wind deflector through the second endpoint 3032, for example Figure 1 The second endpoint 3032 deviates from the center of the cross section of the wind guide plate at the second endpoint 3032, but it can be understood that it can also be located below the center.

[0099] Optionally, the first endpoint 3031 and the second endpoint 3032 are located on the same side of the center of the cross section of the air guide plate passing through the chute 303, for example Figure 1 The first endpoint 3031 and the second endpoint 3032 are located above the center of the cross section of the air guide plate passing through the chute 303 (i.e., on the upper side). It can be understood that they can also be located below the center (i.e., on the lower side).

[0100] The following describes the opening process of the air deflector 30 by taking the example that the first connecting rod 10 is slidably connected to the air deflector 30 and the second connecting rod 20 is rotatably connected to the air deflector 30 .

[0101] During the opening process of the air deflector, the first connecting rod rotates around the circle center O1 under the drive of the first gear, and the second connecting rod rotates around the circle center O2 under the drive of the second gear.

[0102] During the opening process of the air deflector 30, the motor rotates forward, driving the third gear 4021. The third gear 4021 drives the fourth gear 4022, which in turn drives the first gear 50 and the second gear 60 to rotate synchronously. The first constant radius section meshes with the first gear teeth 104 on the first front drive portion 101, and the second constant radius section meshes with the second gear teeth 204 on the second front drive portion 201. The extension speed of the first connecting rod 10 is close to or equal to the extension speed of the second connecting rod 20. The air deflector 30 is pushed outward or tilted while being pushed out, reaching the extended position. Subsequently, the first radius changing section engages with the first gear teeth 104 on the first recess 102, and the second radius constant section engages with the second gear teeth 204 on the first convex portion 202. The movement speed of the first connecting rod 10 is greater than the movement speed of the second connecting rod 20, and the wind guide plate 30 flips downward to reach the first open position, with the wind guide surface 301 facing downward; subsequently, the third radius constant section engages with the first gear teeth 104 on the second convex portion 103, and the fourth radius constant section engages with the second gear teeth 204 on the second recess 203. The movement speed of the first connecting rod 10 is less than the movement speed of the second connecting rod 20, and the wind guide plate 30 flips upward to reach the second open position, with the wind guide surface 301 facing upward.

[0103] Optionally, the telescopic motion trajectory of the first connecting rod 10 and / or the second connecting rod 20 is non-linear. For example, the telescopic motion trajectory of the first connecting rod 10 and / or the second connecting rod 20 is arc-shaped. The arc-shaped motion trajectory can simplify the design of the first gear, the second gear, the first connecting rod 10, and the second connecting rod 20. For another example, the motion trajectory of the first connecting rod 10 and / or the second connecting rod 20 is a broken line.

[0104] like Figures 13 to 17 As shown, the first connecting rod 10 is provided with a first limiting portion 106; the driving mechanism also includes a limiting member, which is provided with a first limiting matching portion 703 that matches the first limiting portion 106. The first limiting matching portion 703 matches the first limiting portion 106 so that the first connecting rod 10 is installed on the limiting member, and the first limiting portion 106 can move relative to the first limiting matching portion 703 to guide the first connecting rod 10 to perform telescopic movement along the length direction of the air duct.

[0105] The functions of the first limiting portion 106 and the first limiting matching portion 703 are to realize the installation of the first connecting rod 10 on the limiting component and the installation of the first connecting rod 10, and to guide the first connecting rod 10 to perform telescopic movement along the length direction of the air duct, integrating the positioning structure and the guide structure together, thereby simplifying the structure of the driving mechanism.

[0106] Optionally, the first limiting portion 106 includes a first limiting rib 107 provided on the first connecting rod 10, the first limiting matching portion 703 includes a first limiting groove 708 provided on the limiting member, the first limiting rib 107 is provided in the first limiting groove 708 and can move relative to the first limiting groove 708 along the length direction of the air duct; or, the first limiting portion 106 includes a first limiting groove 708 provided on the first connecting rod 10, the first limiting matching portion 703 includes a first limiting rib 107 provided on the limiting member, the first limiting rib 107 is provided in the first limiting groove 708 and can move relative to the first limiting groove 708 along the length direction of the air duct.

[0107] There are multiple first limiting ribs 107, which are arranged opposite to each other. The multiple first limiting ribs 107 are respectively in contact with the two opposite groove walls of the first limiting groove 708 and can move relative to the two opposite groove walls of the first limiting groove 708 along the length direction of the air duct. Figure 14 As shown, there are two first limiting ribs 107, and the two first limiting ribs 107 are respectively in contact with the two side groove walls opposite to the first limiting groove 708, and can move along the length direction of the air duct relative to the two side groove walls of the first limiting groove 708. Therefore, the cooperation between the two first limiting ribs 107 and the first limiting groove 708 can not only play a role in limiting the first connecting rod 10, but also play a role in guiding the movement of the first connecting rod 10.

[0108] Optionally, a first groove 706 is provided on the side wall of the first limiting groove 708, and a first flange 108 is provided on one side of the first limiting rib 107. The first flange 108 is limited in the first groove 706 and can move relative to the first groove 706 along the length direction of the air duct.

[0109] The first flange 108 is located in the first groove 706, thereby limiting the first connecting rod 10. The first flange 108 can move along the length of the air duct relative to the first groove 706, so that the first flange 108 does not affect the movement of the first connecting rod 10.

[0110] The positioning of the first connecting rod 10 is achieved by the cooperation between the first limiting portion 106 and the first limiting matching portion 703 and the first gear, and no other positioning structure is required.

[0111] like Figure 16 As shown, the motion trajectory of the first connecting rod 10 is a first arc, the shape of the first limiting groove 708 is an arc and is concentric with the first arc, and the shape of the first limiting rib 107 is adapted to the shape of the first limiting groove 708; or, the motion trajectory of the first connecting rod 10 is a first straight line, the shape of the first limiting groove 708 is a straight line and is parallel to or coincides with the first straight line, and the shape of the first limiting rib 107 is adapted to the shape of the first limiting groove 708.

[0112] Optionally, the limiting member includes a box body, the first connecting rod 10 is at least partially located in the box body, and the first limiting fitting portion 703 is provided on the inner wall surface of the box body.

[0113] The first gear, the second gear, the third gear and the fourth gear are located inside the box body, and the motor is located outside the box body.

[0114] The driving mechanism also includes a second connecting rod 20, which is configured to be movably connected to the air guide plate and to perform telescopic movement along the length direction of the air duct. The second connecting rod 20 is provided with a second limiting portion 205; the limiting member is provided with a second limiting matching portion 704 that cooperates with the second limiting portion 205. The second limiting matching portion 704 cooperates with the second limiting portion 205 so that the second connecting rod 20 is installed on the limiting member, and the second limiting portion 205 can move relative to the second limiting matching portion 704 to guide the second connecting rod 20 to perform telescopic movement along the length direction of the air duct.

[0115] The functions of the second limiting portion 205 and the second limiting matching portion 704 are to realize the installation of the second connecting rod 20 on the limiting member and the installation of the second connecting rod 20, and to guide the second connecting rod 20 to perform telescopic movement along the length direction of the air duct, integrating the positioning structure and the guide structure together, thereby simplifying the structure of the driving mechanism.

[0116] Optionally, the second limiting portion 205 includes a second limiting rib 206 provided on the second connecting rod 20, the second limiting matching portion 704 includes a second limiting groove 705 provided on the limiting member, the second limiting rib 206 is provided in the second limiting groove 705 and can move relative to the second limiting groove 705 along the length direction of the air duct; or, the second limiting portion 205 includes a second limiting groove 705 provided on the second connecting rod 20, the second limiting matching portion 704 includes a second limiting rib 206 provided on the limiting member, the second limiting rib 206 is provided in the second limiting groove 705 and can move relative to the second limiting groove 705 along the length direction of the air duct.

[0117] There are multiple second limiting ribs 206, which are arranged opposite to each other. The multiple second limiting ribs 206 are respectively in contact with the two opposite groove walls of the second limiting groove 705 and can move relative to the two opposite groove walls of the second limiting groove 705 along the length direction of the air duct. Figure 14 As shown, there are two second limiting ribs 206, and the two second limiting ribs 206 are respectively in contact with the groove walls on both sides opposite to the second limiting groove 705, and can move along the length direction of the air duct relative to the groove walls on both sides of the second limiting groove 705. Therefore, the cooperation between the two second limiting ribs 206 and the second limiting groove 705 can not only play a role in limiting the second connecting rod 20, but also play a role in guiding the movement of the second connecting rod 20.

[0118] The second flange 207 is located in the second groove 707, thereby limiting the second connecting rod 20. The second flange 207 can move along the length of the air duct relative to the second groove 707, so that the second flange 207 does not affect the movement of the second connecting rod 20.

[0119] Optionally, the positioning of the second connecting rod 20 is achieved by the cooperation between the second limiting portion 205 and the second limiting matching portion 704 and the second gear, and no other positioning structure is required.

[0120] like Figure 17 As shown, the motion trajectory of the second connecting rod 20 is a second arc, the shape of the second limiting groove 705 is an arc and is concentric with the second arc, and the shape of the second limiting rib 206 is adapted to the shape of the second limiting groove 705; or, the motion trajectory of the second connecting rod 20 is a second straight line, the shape of the second limiting groove 705 is a straight line and is parallel to or coincides with the second straight line, and the shape of the second limiting rib 206 is adapted to the shape of the second limiting groove 705.

[0121] Optionally, the box body 70 includes a first side wall 701 and a second side wall 702; the first side wall 701 and the second side wall 702 are arranged opposite each other, and the first side wall 701 and the second side wall 702 are arranged in sequence along a direction perpendicular to the telescopic movement direction of the first connecting rod or the second connecting rod. The first connecting rod and the second connecting rod are arranged in sequence along the direction from the first side wall 701 to the second side wall 702, that is, the first connecting rod is arranged near the first side wall 701, and the second connecting rod is arranged near the second side wall 702.

[0122] The first position-limiting fitting portion 703 and the second position-limiting fitting portion 704 are provided on the inner wall surface of the first side wall 701 and are used to cooperate with the first position-limiting portion 106 to guide the first connecting rod to perform telescopic movement; the second position-limiting fitting portion 704 is provided on the inner wall surface of the second side wall 702 and is used to cooperate with the second position-limiting portion 205 to guide the second connecting rod to perform telescopic movement.

[0123] It can be understood that the telescopic motion trajectory of the first connecting rod and / or the second connecting rod can also be a straight line.

[0124] like Figure 9 and Figure 10As shown, taking the example of a first connecting rod being rotationally connected to the air deflector and a second connecting rod being slidingly connected to the air deflector, the air deflector opens from the closed position to the first open position: the first gear drives the first connecting rod to rotate about the center O1 of the first arc Y1 by an arc length L11 or an angle θ11; the second gear drives the second connecting rod to rotate about the center O2 of the second arc Y2 by an arc length L21 or an angle θ21. The air deflector moves from the first open position to the second open position: the first gear drives the first connecting rod to rotate about the center O1 of the second arc Y1 by an arc length L12 or an angle θ12; the second gear drives the second connecting rod to rotate about the center O2 of the second arc Y2 by an arc length L22 or an angle θ22. X1, X2, and X3 are the hinge points between the first connecting rod and the air deflector in the closed position, the first open position, and the second open position, respectively; X4, X5, and X6 are the sliding connection points between the second connecting rod and the air deflector in the closed position, the first open position, and the second open position, respectively.

[0125] In the closed position, the pitch curves of the first gear and the first connecting rod, and the pitch curves of the second gear and the second connecting rod are tangent to each other; the transmission ratio of the first gear and the first connecting rod is m, and the center distance is a; the transmission ratio of the second gear and the second connecting rod is n, and the center distance is b. From the rotation angle of the first connecting rod and the second connecting rod, the first open position and the second open position are achieved, such as Figure 11 and Figure 12 As shown, the motor needs to rotate three angles: α1, α2, and α3.

[0126] Within the range of α1: the air deflector moves from the closed position to the extended position, the first constant radius segment meshes with the first front drive unit, and the second constant radius segment meshes with the second front drive unit. Since the air deflector is an outward-turning guide plate, if it rotates directly, it will interfere with the air duct frame. Therefore, the air deflector needs to be extended a certain distance before rotating, or extended while rotating. By adjusting the transmission ratios m and n, the air deflector can be extended and rotated at the same time without interfering with the air duct frame. In this case, the first gear and the second gear are designed to have the same initial radius. At this time, the first connecting rod and the second connecting rod rotate along their respective centers of the circle while extending a similar distance in the horizontal direction. The air deflector can be extended and flipped at the same time without interfering with the air duct frame.

[0127] Within the α2 range, the first radius-varying section engages with the first concave portion, and the second radius-varying section engages with the first convex portion. After the air deflector extends and rotates a certain distance, the first and second connecting rods can undergo a large differential motion, with the first connecting rod extending more slowly and the second connecting rod extending more quickly, allowing the air deflector to extend and flip to the first open position within the α2 angle, i.e., move from the extended position to the first open position.

[0128] Within the α3 range, the third constant radius segment engages with the second convex portion, and the fourth constant radius segment engages with the second concave portion. To move the air deflector from the first open position to the second open position, the first and second connecting rods also undergo a significant differential motion. At this point, the first connecting rod extends faster, while the second connecting rod extends slower, allowing the air deflector to extend and flip to the second open position within the α3 angle.

[0129] L11<L21,L12> L22 and L11 are similar to L12, while L21 and L22 differ significantly. For example, if L12 = 1.1 * L11, L21 = 1.5 * L11, and L22 = 0.5 * L11, and the diameters of the first and second gears are controlled within the Ø20-Ø60 range, the diameter of the first gear decreases from Ø30 to Ø20 and then increases to Ø53, while the diameter of the second gear increases from Ø30 to Ø49 and then decreases to Ø20.

[0130] The diameter of the first gear and the second gear is controlled to be greater than Ø20 in order to increase the strength of the gear and increase stability; it is controlled within Ø60 in order to reduce the space occupied by the drive mechanism. The larger the diameter, the greater the required transmission torque.

[0131] The motor drives the first gear and the second gear to rotate three angles (α1, α2, α3). The corresponding transmission parameters are as follows:

[0132] Within the range of α1: The radius r11 of the first gear is a fixed value, the radius R11 of the first connecting rod is a fixed value, the transmission ratio between the first gear and the first connecting rod is m11, the radius r21 of the second gear is a fixed value, the radius R21 of the second connecting rod is a fixed value, and the transmission ratio between the second gear and the second connecting rod is n21. At this time, r11 = r21 and R11 > R21 (it can also be R11 ≤ R21). Within the range of α2: Set the angle α21 to divide α2 (the second stage) into the first sub-stage and the second sub-stage. The radius of the first gear is a variable value, and the radius of the first connecting rod changes with the first gear. Within the angle range from α1 to α21, the radius of the first gear decreases from r11 to r12 first, and the transmission ratio between the first gear and the first connecting rod is the function m12. Within the angle range from α21 to α2, the radius of the first gear increases from r12 to r13, and the transmission ratio between the first gear and the first connecting rod is the function m13. The radius of the second gear is a variable value, and the radius of the second connecting rod changes with the second gear. Within the angle range from α1 to α21, the radius of the second gear increases from r21 to r22 first, and the transmission ratio between the second gear and the second connecting rod is the function n22. Within the angle range from α21 to α2, the radius of the second gear decreases from r22 to r23, and the transmission ratio between the second gear and the second connecting rod is the function n23. Since L11 < L21, r12 < r22; since L12 > L22, r13 > r23. Within the range of α3: The radius r13 of the first gear is a fixed value, the radius R13 of the first connecting rod is a fixed value, the transmission ratio between the first gear and the first connecting rod is m14, the radius r23 of the second gear is a fixed value, the radius R23 of the second connecting rod is a fixed value, and the transmission ratio between the second gear and the second connecting rod is n24.

[0133] The polar coordinate function equation of the pitch curve of the first gear is:

[0134]

[0135] The polar coordinate function equation of the pitch curve of the first connecting rod is:

[0136]

[0137] The rotation angle θ1 of the first connecting rod at each stage is:

[0138]

[0139] The polar coordinate function equation of the pitch curve of the second gear is:

[0140]

[0141] The polar coordinate function equation of the pitch curve of the second connecting rod is:

[0142]

[0143] The rotation angle θ2 of the second link at each stage is:

[0144]

[0145] An embodiment of the second aspect of the present application provides an air conditioner, comprising: a driving mechanism for an air guide plate 30 of an air conditioner and an indoor unit as described in any one of the above embodiments, the indoor unit comprising a shell 100 and an air guide plate 30, the shell 100 defines an air outlet duct and is provided with an air outlet 1001 connected to the air duct, the driving mechanism is arranged in the shell 100 and is driven and connected to the air guide plate 30.

[0146] The air conditioner provided in the embodiment of the second aspect of the present application includes a driving mechanism for the air-conditioning air guide plate 30 as described in any one of the above embodiments, and thus has all the beneficial effects of the driving mechanism for the air-conditioning air guide plate 30 as described in any one of the above embodiments, which will not be repeated here.

[0147] There are multiple drive mechanisms, which are sequentially arranged along the length direction of the air deflector. For example, there are two drive mechanisms, which are respectively arranged at two opposite ends of the air deflector in the length direction.

[0148] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless expressly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A driving mechanism for an air guide plate of an air conditioner, characterized in that: The indoor unit of the air conditioner includes a housing and an air guide plate. The housing defines an air outlet duct and is provided with an air outlet connected to the air outlet duct. The air guide plate is movably provided at the air outlet. The driving mechanism includes: The first connecting rod is configured to be movably connected to the air guide plate and to perform telescopic movement along the length direction of the air duct, the first connecting rod is provided with a first recess, and the first recess is provided with a first gear tooth; The second connecting rod is configured to be movably connected to the air guide plate and to perform telescopic movement along the length direction of the air duct, the second connecting rod is provided with a first protrusion, and the first protrusion is provided with a second gear tooth; The first gear is engaged with the first gear teeth to drive the first connecting rod to perform telescopic movement along the length direction of the air duct; The second gear is engaged with the second gear teeth to drive the second connecting rod to perform telescopic movement along the length direction of the air duct; When the air deflector is in the closed position, the first concave portion corresponds to the first convex portion, so that when the first gear is engaged with the first concave portion and the second gear is engaged with the first convex portion, the first connecting rod and the second connecting rod can have different movement speeds to realize the movement of the air deflector; The first connecting rod is further provided with a second convex portion, the second convex portion and the first concave portion are sequentially arranged along the direction in which the first connecting rod extends out of the air duct, and the second convex portion is provided with a first gear tooth; The second connecting rod is further provided with a second concave portion, the second concave portion and the first convex portion are arranged in sequence along the direction in which the second connecting rod extends out of the air duct, and the second concave portion is provided with a second gear tooth; When the air deflector is in the closed position, the second convex portion corresponds to the second concave portion, so that when the first gear is engaged with the second convex portion and the second gear is engaged with the second concave portion, the first connecting rod and the second connecting rod can have different movement speeds; The first gear and the second gear are both non-circular. The first gear has different radii at the locations where they mesh with the first concave portion and the second convex portion respectively; the second gear has different radii at the locations where they mesh with the first convex portion and the second concave portion respectively.

2. The driving mechanism for the air guide plate of an air conditioner according to claim 1, characterized in that: The first connecting rod is further provided with a first front driving portion, the first recess and the first front driving portion are sequentially arranged along the direction in which the first connecting rod extends out of the air duct, and the first front driving portion is provided with a first gear tooth; The second connecting rod is further provided with a second front driving portion, the first protrusion and the second front driving portion are sequentially arranged along the direction in which the second connecting rod extends out of the air duct, and the second front driving portion is provided with a second gear tooth; In which, when the air guide plate is in the closed position, the first front drive part corresponds to the second front drive part, and the absolute value of the difference between the movement speed of the first connecting rod when the first front drive part is engaged with the first gear and the movement speed of the second connecting rod when the second front drive part is engaged with the second gear is less than the preset difference, wherein the absolute value of the difference between the movement speed of the first connecting rod when the first recess is engaged with the first gear and the movement speed of the second connecting rod when the first convex part is engaged with the second gear is greater than the preset difference, and the absolute value of the difference between the movement speed of the first connecting rod when the second convex part is engaged with the first gear and the movement speed of the second connecting rod when the second recess is engaged with the second gear is greater than the preset difference.

3. The driving mechanism for an air guide plate of an air conditioner according to claim 1 or 2, characterized in that: The rotation axes of the first gear and the second gear coincide with each other, and the first gear and the second gear rotate synchronously.

4. The driving mechanism for an air guide plate of an air conditioner according to claim 1 or 2, characterized in that: Also includes: The power source is driven and connected to the first gear and the second gear. The power source includes a driving member and a transmission member. The driving member is driven and connected to the transmission member. The transmission member cooperates with the first gear and the second gear so that the driving member drives the first gear and the second gear to move synchronously through the transmission member.

5. The driving mechanism for the air guide plate of an air conditioner according to claim 4, characterized in that: Transmission parts include: a third gear, drivingly connected to the driving member; a fourth gear meshing with the third gear and connected to both the first gear and the second gear; The rotation axes of the first gear, the second gear and the fourth gear are parallel or coincide with each other.

6. The driving mechanism for the air guide plate of an air conditioner according to claim 4, characterized in that: The first gear and the second gear are both eccentrically arranged on the power source.

7. The driving mechanism for an air guide plate of an air conditioner according to claim 1, characterized in that: One of the first connecting rod and the second connecting rod is configured to be slidably connected to the wind deflector, and the other is configured to be rotatably connected to the wind deflector, so that the first connecting rod and the second connecting rod cooperate to enable the wind deflector to have a first open position and a second open position; Wherein, in the first open position, the wind guiding surface of the wind guide plate faces downward; and in the second open position, the wind guiding surface of the wind guide plate faces upward.

8. An air conditioner, characterized in that: include: The driving mechanism for an air guide plate of an air conditioner according to any one of claims 1 to 7; The indoor unit includes a shell and an air guide plate. The shell defines an air outlet and is provided with an air outlet connected to the air outlet. The air guide plate is movably arranged at the air outlet. The driving mechanism is arranged in the shell and is drivingly connected to the air guide plate.

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