Air conditioner air deflector and air conditioner

Abstract

The utility model discloses an air -conditioning air deflector and air conditioner, the air -conditioning air deflector is used in air conditioner indoor unit, include: first air deflector and second air deflector, when the body is in heating state, first air deflector closes, second drive assembly drives second air deflector and opens, when the body is in refrigeration state, first drive assembly drives first air deflector and opens, and second air deflector closes or second drive assembly drives second air deflector and swings back and forth with preset angle. The utility model discloses through the independent drive control of first air deflector and second air deflector, realizes the accurate matching of air supply mode under refrigeration, heating working condition, under the heating state, let hot air cover human activity area fast, promote heating efficiency and indoor temperature uniformity, under the refrigeration state, let cold air slowly spread to the whole world from the upper portion, realize the quick cooling while avoiding the local temperature difference too big, optimize the temperature regulation effect under the refrigeration working condition.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an air conditioning air guide device and an air conditioner. Background Technology

[0002] In modern home and commercial environments, air conditioners, as the core equipment for regulating indoor temperature, directly impact user experience and environmental comfort through their air delivery performance. As people's demands for comfort in their living and working environments continue to rise, details such as air delivery modes and the precision of airflow direction control are gradually becoming key indicators for evaluating the competitiveness of air conditioning products.

[0003] Currently, most mainstream air conditioners on the market rely on air guide vanes for airflow control. However, existing air guide vane designs generally suffer from limited adjustment capabilities, making it difficult to meet diverse temperature control needs. Specifically, most existing air conditioners use single or linked air guide vane structures. The movement trajectory of these structures is fixed by mechanical design, allowing only single-dimensional (such as up / down or left / right) or simple combinations of oscillations, failing to create complex and varied airflow patterns. Air conditioners have significantly different requirements for airflow direction during cooling and heating: during cooling, to prevent cold air from accumulating in the upper part of the room and to quickly achieve overall cooling, airflow needs to be guided diagonally upwards or horizontally; during heating, to address the natural upward movement of hot air, airflow needs to be guided diagonally downwards to push hot air down to the area where people are active. Because existing air guide vanes have a single adjustment dimension and fixed trajectory, they cannot flexibly switch to the optimal airflow path according to different cooling / heating conditions, resulting in reduced temperature control efficiency and difficulty in meeting basic comfort requirements under different conditions.

[0004] Furthermore, existing air deflector designs commonly suffer from issues such as direct airflow onto the human body or uneven airflow distribution, directly impacting the user experience. In cooling mode, because the air deflector cannot precisely control the angle of cold air diffusion, the cold air tends to blow directly onto the human body along a fixed trajectory. This can easily cause a sudden drop in skin temperature and discomfort, especially when the user is at close range. Prolonged direct airflow may also lead to health problems such as colds and joint discomfort. In heating mode, due to the limited adjustment range of the air deflector, hot air is difficult to effectively guide downwards. A large amount of hot air accumulates at the top of the room, and the temperature rises slowly in the area where people are active (such as the area from the ground to a height of 1.8m), creating a "hot above, cold below" temperature stratification phenomenon. This not only reduces heating efficiency but also prevents users from achieving an ideal body temperature even under heating conditions.

[0005] In summary, the shortcomings of existing air conditioner air deflectors in terms of adjustment flexibility, adaptability to operating conditions, and user comfort have become important factors restricting the performance upgrade of air conditioning products. There is an urgent need for an air deflector design that can break through the limitations of fixed movement trajectory, adapt to different airflow needs for cooling / heating, and avoid direct airflow onto the human body, so as to improve the air delivery accuracy of air conditioners and the user experience. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an air conditioning air guide device and an air conditioner.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: In a first aspect, this utility model provides an air conditioning air guide device for an indoor unit of an air conditioner. The indoor unit includes a body and a second air guide plate. The body has an air outlet. The body also has a first driving component and a second driving component in the area of ​​the air outlet. The first air guide plate and the second air guide plate are arranged along the length of the air outlet and are respectively disposed at the upper and lower parts of the air outlet. One end of the first air guide plate is movably connected to the body and the other end is drivenly connected to the first driving component. One end of the second air guide plate is movably connected to the body and the other end is drivenly connected to the second driving component. When the machine body is in heating mode, the first air guide plate is closed, and the second drive component drives the second air guide plate to open. When the machine body is in a cooling state, the first drive component drives the first air guide plate to open, and the second air guide plate to close, or the second drive component drives the second air guide plate to swing back and forth at a preset angle.

[0008] In one specific embodiment, when the body is in a heating state, the opening angle of the second air guide plate is greater than 90 degrees to form a downward vertical hot air delivery mode.

[0009] In one specific embodiment, when the machine body is in a cooling state, the first drive component drives the first air guide plate to open parallel to the machine body to form a horizontal cooling air delivery mode.

[0010] In one specific embodiment, when the machine body is in a cooling state, the second drive component drives the second air guide plate to swing back and forth within a range of ±15 degrees.

[0011] In one specific embodiment, the body is fitted with a bushing, and both the first air guide plate and the second air guide plate are provided with bosses corresponding to the bushing.

[0012] In one specific embodiment, the first drive assembly includes a first motor and a crankshaft. The first motor is connected to the body, one end of the crankshaft is driven to the first motor, and the other end is driven to the first air guide plate.

[0013] In one specific embodiment, the second drive assembly includes a second motor and a crankshaft. The second motor is connected to the body, and one end of the crankshaft is driven to the second motor, while the other end is driven to the second air guide plate.

[0014] In one specific embodiment, the first air guide plate is an arc-shaped plate.

[0015] In one specific embodiment, the second air guide plate is a flat plate.

[0016] The advantages of this air conditioning air guide device compared to existing technologies are as follows: Through independent drive control of the first and second air guide plates, precise matching of air delivery modes is achieved under cooling and heating conditions. In heating mode, the first air guide plate is closed (to prevent hot air from diffusing upwards), while the second drive component opens the second air guide plate, allowing hot air to be delivered to the lower indoor area along the guide direction of the second air guide plate. This design directly solves the problem of hot air failing to sink during heating, effectively breaking the temperature stratification phenomenon of "hot above and cold below," allowing hot air to quickly cover the human activity area, significantly improving heating efficiency and indoor temperature uniformity. In cooling mode, the second air guide plate is closed (to prevent cold air from blowing directly downwards onto the human body) or oscillated at a preset angle within a small range, while the first drive component opens the first air guide plate, guiding cold air into the room along the first air guide plate. The design, which diffuses air diagonally upwards or horizontally, avoids the discomfort caused by direct cold air blowing during cooling. It also utilizes the natural sinking property of cold air to allow it to slowly diffuse from the top to the entire area, achieving rapid cooling while preventing excessive local temperature differences, further optimizing temperature regulation during cooling. Furthermore, the first and second air guides correspond to independent first and second drive components, respectively, allowing for completely independent motion control. Compared to the bound motion of traditional linked air guides, this design offers greater flexibility. The second air guide's "preset angle back-and-forth oscillation" design during cooling further optimizes the cold air diffusion range by oscillating within a small range, avoiding direct blowing. Compared to existing air guides' "single fixed angle air delivery," this design more accurately adapts to the air delivery needs of different indoor space layouts, reducing dead air zones and improving the uniformity of indoor airflow distribution.

[0017] Secondly, this utility model provides an air conditioner, including the air conditioning air guide device as described above.

[0018] The advantages of this air conditioner compared to existing technologies are as follows: By setting up an air conditioning air guide device and adopting independent drive control of the first and second air guide plates, precise matching of air delivery modes under cooling and heating conditions is achieved. In heating mode, the first air guide plate is closed (to prevent hot air from diffusing upwards), while the second drive component drives the second air guide plate to open, allowing hot air to be delivered to the lower indoor area along the guidance direction of the second air guide plate. This design directly solves the problem of hot air not sinking during heating, effectively breaking the temperature stratification phenomenon of "hot above and cold below," allowing hot air to quickly cover the human activity area, significantly improving heating efficiency and indoor temperature uniformity. In cooling mode, the second air guide plate is closed (to prevent cold air from blowing directly downwards onto the human body) or driven to swing at a preset angle within a small range, while the first drive component drives the first air guide plate to open, allowing cold air to flow along the first air guide plate. The design guides the airflow diagonally upwards or horizontally within the room. This avoids the discomfort caused by direct cold air blowing during cooling and utilizes the physical property of cold air naturally sinking to allow the cold air to slowly diffuse from the top to the entire area. This achieves rapid cooling while avoiding excessive local temperature differences, further optimizing the temperature regulation effect under cooling conditions. In addition, the first and second air guides correspond to independent first and second drive components, respectively, and can achieve completely independent motion control. Compared with the bound motion of traditional linked air guides, they have a more flexible adjustment dimension. The "preset angle back-and-forth swing" design of the second air guide in cooling mode can further optimize the cold air diffusion range by swinging within a small range while avoiding direct blowing. Compared with the existing air guides' "single fixed angle air delivery", it can more accurately adapt to the air delivery needs of different indoor space layouts, reduce airflow dead zones, and improve the uniformity of indoor airflow distribution.

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0021] Figure 1 A three-dimensional schematic diagram of the air conditioning air guide device provided by this utility model in the cooling state; Figure 2 A three-dimensional schematic diagram of the air conditioning air guide device provided by this utility model in heating mode; Figure 3 An exploded view of the air conditioning air guide device provided by this utility model; Figure 4 A schematic diagram of the structure of the first air guide plate provided by this utility model; Figure 5 This is a schematic diagram of the structure of the second air guide plate provided by this utility model; Figure 6 A schematic diagram of the structure of the bushing provided by this utility model; Figure 7 A schematic diagram of the crankshaft provided by this utility model.

[0022] Figure label: Body 10, first air guide plate 20, second air guide plate 30, bushing 40, crankshaft 50. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to indicate or imply that the device or element 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.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] 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. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring 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. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0030] See Figures 1 to 7 As shown, this utility model discloses a specific embodiment of an air conditioning air guide device for use in an indoor unit of an air conditioner. The indoor unit of the air conditioner includes a body 10; including: a first air guide plate 20 and a second air guide plate 30. The body 10 is provided with an air outlet. The body 10 is also provided with a first driving component and a second driving component in the area of ​​the air outlet. The first air guide plate 20 and the second air guide plate 30 are arranged along the length direction of the air outlet and are respectively disposed at the upper part and the lower part of the air outlet. One end of the first air guide plate 20 is movably connected to the body 10, and the other end is drivenly connected to the first driving component. One end of the second air guide plate 30 is movably connected to the body 10, and the other end is drivenly connected to the second driving component. When the body 10 is in a heating state, the first air guide plate 20 is closed, and the second drive component drives the second air guide plate 30 to open. When the body 10 is in a cooling state, the first drive component drives the first air guide plate 20 to open and the second air guide plate 30 to close, or the second drive component drives the second air guide plate 30 to swing back and forth at a preset angle.

[0031] Specifically, the air conditioning air guide device is applied to the indoor unit of a wall-mounted air conditioner. The unit body 10 has a long strip-shaped air outlet, the length of which is adapted to the width of the unit body 10 (usually 80-120cm). The first air guide plate 20 and the second air guide plate 30 both adopt a long strip-shaped plate structure that matches the length of the air outlet. The material is ABS engineering plastic (which has lightweight, temperature resistance and structural strength), the plate thickness is 3-5mm, and the surface is matte to reduce wind resistance and noise. The first air guide plate 20 is set at the upper edge of the air outlet along the length direction of the air outlet. Its end near the unit body 10 is movably connected to the unit body 10 through a hinge. The hinge axis is parallel to the length direction of the air outlet, allowing the first air guide plate 20 to swing up and down around the hinge. The free end (away from the hinge end) of the first air guide plate 20 has a transmission lug on its back, which is connected to the output end of the first drive component through a pin. The second air guide plate 30 is located at the lower edge of the air outlet along the length of the air outlet. Its movable connection and transmission structure design is symmetrical to that of the first air guide plate 20. That is, the end near the body 10 is movably connected to the body 10 through a hinge, and the back of the free end is provided with a transmission lug and connected to the output pin of the second drive component.

[0032] The first and second drive components have identical structures, both including a stepper motor, a reduction gear set, and a transmission link. The stepper motor is a permanent magnet stepper motor (with precise angle control capability), and its output shaft meshes with the input end of the reduction gear set. The output end of the reduction gear set is fixedly connected to one end of the transmission link, and the other end of the transmission link is connected to the transmission lug pin of the air guide plate. The two drive components are respectively fixed inside the body 10 at positions corresponding to the first air guide plate 20 and the second air guide plate 30 via brackets. The stepper motor is electrically connected to the main controller of the indoor unit of the air conditioner via wires, receiving the angle control signal output by the main controller.

[0033] When the user turns on the air conditioner in heating mode, the main controller first sends a "close command" to the first drive component. The stepper motor of the first drive component drives the reduction gear set to rotate, causing the transmission link to pull the first air guide plate 20 to swing downward around the hinge until the first air guide plate 20 completely covers the upper area of ​​the air outlet (closed state, with a contact error of ≤1mm with the surface of the body 10), blocking the upward diffusion path of hot air. At the same time, the main controller sends an "open command" to the second drive component. The stepper motor of the second drive component drives the reduction gear set to rotate in the opposite direction, causing the transmission link to push the second air guide plate 30 to swing upward around the hinge. According to the indoor temperature setting (such as the difference between the set temperature and the ambient temperature), the second air guide plate 30 is opened to a preset angle—when the temperature difference is >10℃, the opening angle is 30° (angle with the horizontal plane), accelerating the downward speed of hot air; when the temperature difference is ≤10℃, the opening angle is 15°, avoiding excessively rapid downward movement of hot air and causing local overheating, thus achieving precise air delivery control.

[0034] When the user turns on the air conditioner in cooling mode, the main controller first sends a "close command" to the second drive component. The second drive component drives the second air guide plate 30 to swing upward around the hinge until it completely covers the lower area of ​​the air outlet (closed state), cutting off the downward direct path of the cold air. At the same time, the main controller sends an "open command" to the first drive component. The first drive component drives the first air guide plate 20 to swing downward around the hinge. The opening angle is set according to the cooling intensity. In strong cooling mode, the opening angle is 20° (angle with the horizontal plane), guiding the cold air to diffuse diagonally upward and then naturally sink, achieving rapid and full-area cooling. In weak cooling mode, the opening angle is 10°, reducing the diffusion range of the cold air and avoiding energy waste. When the indoor space area is detected to be >20㎡ (via the air conditioner's built-in infrared sensor or manually set by the user), the main controller switches the second air guide plate 30 to "oscillation mode". The second drive component drives the second air guide plate 30 to oscillate back and forth within a preset angle range of ±15° (oscillation frequency of 3 times / minute), assisting the cold air to diffuse to the left and right sides and eliminating dead air zones.

[0035] In other words, by independently driving and controlling the first air guide plate 20 and the second air guide plate 30, precise matching of air delivery modes under cooling and heating conditions is achieved. In heating mode, the first air guide plate 20 is closed (to prevent hot air from diffusing upwards), while the second drive component drives the second air guide plate 30 to open, allowing hot air to be delivered to the lower part of the room along the guiding direction of the second air guide plate 30. This design directly solves the problem of hot air failing to sink during heating, effectively breaking the temperature stratification phenomenon of "hot above, cold below," allowing hot air to quickly cover the area where people are active, and significantly improving heating efficiency. Indoor temperature uniformity: In cooling mode, the second air guide plate 30 is closed (to prevent cold air from blowing directly downwards onto the human body) or it is driven to swing at a preset angle within a small range. At the same time, the first air guide plate 20 is opened by the first drive component, so that the cold air is guided along the first air guide plate 20 to diffuse diagonally upwards or horizontally in the room. This design not only avoids the problem of discomfort caused by cold air blowing directly during cooling, but also utilizes the physical property of cold air naturally sinking, allowing the cold air to slowly diffuse from the top to the whole area, achieving rapid cooling while avoiding excessive local temperature differences, and further optimizing the temperature regulation effect under cooling conditions. In addition, the first air guide plate 20 and the second air guide plate 30 correspond to independent first and second drive components, respectively. The two can achieve completely independent motion control, which has a more flexible adjustment dimension compared with the bound motion of traditional linked air guide plates. In the cooling state, the "preset angle back and forth swing" design of the second air guide plate 30 can further optimize the cold air diffusion range by swinging within a small range without avoiding direct blowing. Compared with the existing air guide plate's "single fixed angle air delivery", it can more accurately adapt to the air delivery needs of different indoor space layouts, reduce airflow dead angles, and improve the uniformity of indoor airflow distribution. In addition, the basic mode of "second air guide plate 30 closed" is prioritized in the cooling state. The first air guide plate 20 guides the cold air to diffuse upward / horizontally, cutting off the path of the cold air blowing directly down to the human body from the source, avoiding problems such as sudden drop in skin temperature and joint discomfort. Even when the second air guide plate 30 is needed to assist in air supply during cooling (such as in the scenario of rapid cooling in a large space), it is only controlled to "oscillate back and forth at a preset angle" rather than blowing directly at a fixed angle. The oscillation amplitude can be set according to the human comfort threshold (such as a small range of oscillation of ±10°~±15°). It can both assist in the diffusion of cold air and prevent the airflow from focusing on a certain area for a long time. The mechanism ensures the user's physical comfort in the cooling state and solves the dilemma of existing air guide plates that "either blow directly or have a limited air supply range".

[0036] See Figure 2 As shown, in one embodiment, when the body 10 is in a heating state, the opening angle of the second air guide plate 30 is greater than 90 degrees to form a downward vertical hot air delivery mode.

[0037] Specifically, when the indoor unit 10 of the air conditioner detects that it is in heating mode (confirmed by the mode selection signal received by the main controller and the feedback signal from the temperature sensor), the main controller sends a "fully closed command" to the first drive assembly. The stepper motor of the first drive assembly drives the reduction gear set to rotate, which drives the transmission link to pull the first air guide plate 20 to swing downward around the upper hinge until the first air guide plate 20 is tightly attached to the upper edge of the air outlet of the unit 10, completely blocking the upper area of ​​the air outlet and preventing hot air from diffusing upward. At the same time, the main controller sends a "greater than 90-degree opening command" to the second drive assembly. After receiving the pulse signal, the stepper motor of the second drive assembly transmits the power to the transmission link through the reduction gear set. The transmission link pushes the second air guide plate 30 to swing upward around the lower hinge. To ensure a precise opening angle greater than 90 degrees (with the included angle reference being the plane where the air outlet of the body 10 is located), the stepper motor adopts a microstepping drive mode (microstepping number set to 3200 steps / revolution), combined with the real-time position signal feedback from the encoder for closed-loop control. When the second air guide plate 30 is detected to form an angle greater than 90 degrees with the air outlet plane of the body 10, the main controller controls the stepper motor to stop running, completing the angle positioning of the second air guide plate 30. At this time, the body 10 forms a downward vertical air delivery channel.

[0038] In other words, during heating, the second air guide plate opens at an angle greater than 90 degrees (generally between 90-150 degrees), creating a vertical downward airflow mode that directly directs the hot airflow to the ground area. This solves the problem of hot air accumulating in the upper space and the foot area being colder during traditional air conditioning heating. Simultaneously, the wide-angle characteristic of the vertical airflow (greater than 90 degrees) allows the hot airflow to concentrate and cover most of the ground area, increasing the coverage by more than 60% compared to the traditional 30-degree opening angle. After reaching the ground, the hot airflow diffuses along the floor to all corners of the room, while simultaneously rising naturally due to the lower density of hot air, forming a complete convection cycle from the floor to the ceiling. This convection mode accelerates the indoor air renewal rate, significantly improving indoor temperature uniformity and avoiding localized uneven heating, achieving efficient and balanced heating. Furthermore, because the hot airflow reaches the ground directly and heats up rapidly through convection, the time to reach the set temperature is shortened compared to traditional airflow modes, directly reducing the air conditioner's heating energy consumption.

[0039] See Figure 1 As shown, in one embodiment, when the body 10 is in a cooling state, the first drive component drives the first air guide plate 20 to open to be parallel to the body 10, so as to form a horizontal cooling air delivery mode.

[0040] Specifically, when the indoor unit 10 of the air conditioner switches to cooling mode (confirmed by the main controller via mode button signal and cooling system operating status), the second air guide plate 30 first performs its initial action. The main controller sends a "closing command" to the second drive assembly, which drives the second air guide plate 30 to swing upward around the lower hinge until it completely fits the lower area of ​​the air outlet, blocking the downward direct path of the cold air. Subsequently, the main controller sends a "horizontal opening command" to the first drive assembly, which starts the stepper motor of the first drive assembly and converts the rotational motion into linear pushing motion of the transmission linkage through the reduction gear set. To accurately achieve the "parallel to the body 10" positioning, a "dual calibration" scheme of "pulse counting + position sensor" is adopted. The stepper motor operates according to a preset number of pulses (calculated based on the size of the air guide plate and the hinge position, requiring the output of pulses corresponding to 180-degree rotation). At the same time, a Hall position sensor is installed on the back of the first air guide plate 20 near the free end. When the sensor detects that the relative position with the preset magnet of the body 10 reaches the state of "the surface of the air guide plate is parallel to the surface of the body 10", it immediately sends a signal to the main controller. The main controller stops the stepper motor, completing the positioning. At this time, the surface of the first air guide plate 20 remains parallel to the front panel of the indoor unit 10 of the air conditioner, forming an air supply channel along the horizontal direction (parallel to the roof).

[0041] In other words, when the first air guide plate 20 opens to a horizontal airflow mode parallel to the unit 10, it directs the cold airflow directly towards the roof. The cold air forms an "air film" that diffuses along the ceiling, and then slowly settles naturally due to the higher density of cold air compared to hot air. This "diffusion followed by settling" airflow path avoids the problem of cold air blowing directly onto people, making it especially suitable for the elderly, children, and sensitive individuals, significantly improving comfort during cooling. Simultaneously, the horizontal airflow diffusion along the roof allows the cold air to cover a larger indoor space, increasing the coverage area by 40%-50% compared to traditional downward-sloping airflow. During the natural settling process, the cold air mixes thoroughly with the indoor hot air, preventing sudden temperature changes in localized areas and achieving uniform cooling throughout the entire area. Furthermore, because the cold air first covers the roof area, it effectively suppresses the downward transfer of heat generated by external environmental radiation from the roof, reducing the cooling load. At the same time, the natural settling airflow method does not require additional energy to drive the airflow over long distances, resulting in lower airflow resistance and achieving energy savings.

[0042] In one embodiment, when the body 10 is in a cooling state, the second drive component drives the second air guide plate 30 to swing back and forth within a range of ±15 degrees.

[0043] Specifically, when the indoor unit of the air conditioner is in cooling mode and meets the trigger conditions for the "dynamic air sweep" mode (manual selection by the user or automatic triggering by the main controller based on an indoor space area > 20㎡ and a set temperature difference > 5℃), the main controller first controls the first air guide plate 20 to open to a horizontal air supply state parallel to the body 10 according to the process described above, and then sends a "±15 degree swing command" to the second drive component. The stepper motor of the second drive component adopts "angle closed-loop control". The main controller presets the swing range as 15 degrees outward (indoor direction) and 15 degrees inward (outlet direction) with the closed position of the second air guide plate 30 (fitted with the body 10) as the reference point, forming a swing range of ±15 degrees. The stepper motor achieves precise angle adjustment through microstepping drive. Each swing cycle from -15 degrees to +15 degrees takes 8 seconds (including a 0.5-second buffer time at both ends). At the same time, the position of the air guide plate is fed back in real time through the encoder. When the detected angle deviation exceeds ±0.3 degrees, the main controller immediately outputs a correction pulse to ensure the stability of the swing trajectory.

[0044] In other words, the small-amplitude periodic oscillation of the second air guide plate at 30±15 degrees, combined with the micro-ventilation holes and turbulence protrusions, transforms the cold air below the air outlet from "centralized laminar flow" to "dispersed turbulent flow." Users only feel a drop in indoor temperature without any noticeable direct airflow, achieving a "windless, gentle breeze" effect and completely resolving skin discomfort and headaches caused by direct cold airflow during cooling. In addition, the "dynamic sweeping" actively disrupts the airflow, causing the cold air from the roof delivered horizontally by the first air guide plate 20 to work synergistically with the cold air from the lower part dispersed by the oscillating second air guide plate 30. The cold air from the roof diffuses along the ceiling, while the turbulent cold air from below replenishes it upwards. The two mix rapidly in the indoor space, creating a "shower-like" overall cooling effect without localized temperature differences, achieving uniform and rapid overall cooling.

[0045] See Figures 3 to 6 As shown, in one embodiment, the body 10 is fitted with a bushing 40, and both the first air guide plate 20 and the second air guide plate 30 are provided with protrusions corresponding to the bushing 40.

[0046] Specifically, the body 10 has bushing 40 mounting positions spaced along its length at the upper and lower edges of the air outlet. Each mounting position is fitted with a cylindrical bushing 40 (made of wear-resistant nylon PA66, which has a low coefficient of friction and high strength). The outer circumference of the bushing 40 has an annular groove. The bushing 40 is fixedly embedded by the groove and the snap-fit ​​structure of the mounting position on the body 10 through an interference fit. After being embedded, the end face of the bushing 40 is flush with the surface of the body 10 to avoid interfering with the rotation of the air guide plate. Correspondingly, the first air guide plate 20 and the second air guide plate 30 are both provided with cylindrical bosses spaced along their length, each corresponding to a bushing 40. The bosses are made of the same material as the air guide plates (ABS engineering plastic), and the base of the bosses has a circular reinforcing rib to enhance the connection strength between the bosses and the air guide plate body, preventing breakage due to long-term rotation.

[0047] During assembly, align the boss of the first air guide plate 20 with the bushing 40 at the upper part of the air outlet of the body 10, and insert the boss into the bushing 40 using an "axial pressing" method. Because the outer diameter of the boss is slightly smaller than the inner diameter of the bushing 40, the insertion process is smooth and without jamming. After insertion, a 2mm gap is maintained between the end of the boss and the bottom of the bushing 40 to avoid end-face friction during rotation. The assembly method of the boss of the second air guide plate 30 and the bushing 40 at the lower part of the air outlet of the body 10 is the same as that of the first air guide plate 20. After assembly, the air guide plate can rotate freely around the mating axis of the boss and the bushing 40, with a rotation angle range covering 0-120 degrees (meeting the angle requirements of various operating conditions such as cooling and heating).

[0048] In other words, the clearance fit design between the boss and the bushing 40 significantly reduces the frictional resistance when the air guide plate rotates. At the same time, the cylindrical surface fit between the bushing 40 and the boss ensures that the rotation axis of the air guide plate is fixed, avoiding radial offset or jamming. Whether it is the positioning of the second air guide plate 30 at more than 90 degrees during heating, or the swing of the second air guide plate 30 at ±15 degrees during cooling, it can accurately respond to the control commands of the drive component.

[0049] See Figure 7 As shown, in one embodiment, the first drive assembly includes a first motor and a crankshaft 50. The first motor is connected to the body 10, and one end of the crankshaft 50 is driven to the first motor, while the other end is driven to the first air guide plate 20.

[0050] Specifically, the first motor is a 39BYG series two-phase hybrid stepper motor with a rated voltage of 12V, a rated current of 1.5A, and an output torque of 0.8N·m, which can meet the power requirements when the first air guide plate 20 rotates. The first motor is fixedly connected to the inside of the body 10 at the position corresponding to the first air guide plate 20 by an L-shaped metal bracket. The bracket is bolted to the body 10 to ensure that the motor does not loosen or shift during operation. The crankshaft 50 is an integrated metal structure, including a motor connection section, a transition section, and an air guide plate connection section. The motor connection section is cylindrical with a keyway at the end for connecting to the output shaft of the first motor via a flat key. The transition section is long enough to connect the motor connection section and the air guide plate connection section, and has an annular positioning boss in the middle. The positioning boss cooperates with the support seat inside the body 10 through a bearing to achieve radial positioning of the crankshaft 50. The air guide plate connection section is cylindrical with an external thread at the end for connecting to the transmission lug of the first air guide plate 20.

[0051] In other words, the high-precision step angle of the 39BYG series stepper motor, combined with the rigid transmission of the crankshaft 50, enables the angle adjustment accuracy of the first air guide plate 20 to reach ±0.3°, a 30% improvement over traditional gear transmission. Simultaneously, the direct transmission between the motor and the crankshaft 50 reduces energy loss and transmission delay in intermediate transmission links, resulting in a shorter response time for the first air guide plate 20 to open from a closed state to a horizontal airflow state, enabling rapid and precise positioning of the air guide plate. Furthermore, the high strength of the crankshaft 50 and the bearing support design of the positioning boss allow the drive assembly to withstand the radial and axial forces during the rotation of the first air guide plate 20, preventing bending deformation of the crankshaft 50 and ensuring that the air guide plate maintains a stable rotation trajectory without wobbling or deviation during long-term operation.

[0052] See Figure 7 As shown, in one embodiment, the second drive assembly includes a second motor and a crankshaft 50. The second motor is connected to the body 10, and one end of the crankshaft 50 is driven to the second motor, while the other end is driven to the second air guide plate 30.

[0053] Specifically, the second motor is also a 39BYG series two-phase hybrid stepper motor with a rated voltage of 12V, a rated current of 1.5A, and an output torque of 0.8N·m, which can meet the power requirements when the second air guide plate 30 rotates. The second motor is fixedly connected to the inside of the body 10 at the position corresponding to the second air guide plate 30 by an L-shaped metal bracket. The bracket is bolted to the body 10 to ensure that the motor does not loosen or shift during operation. The crankshaft 50 is an integrated metal structure, including a motor connection section, a transition section, and an air guide plate connection section. The motor connection section is cylindrical with a keyway at the end for connecting to the output shaft of the second motor via a flat key. The transition section is long enough to connect the motor connection section and the air guide plate connection section, and has an annular positioning boss in the middle. The positioning boss cooperates with the support seat inside the body 10 through a bearing to achieve radial positioning of the crankshaft 50. The air guide plate connection section is cylindrical with an external thread at the end for connecting to the transmission lug of the second air guide plate 30.

[0054] In other words, the high-precision step angle of the 39BYG series stepper motor, combined with the rigid transmission of the crankshaft 50, enables the angle adjustment accuracy of the second air guide plate 30 to reach ±0.3°, a 30% improvement over traditional gear transmission. Simultaneously, the direct transmission between the motor and the crankshaft 50 reduces energy loss and transmission delay in intermediate transmission links, resulting in a shorter response time for the second air guide plate 30 to open from a closed state to a horizontal airflow state, enabling rapid and precise positioning of the air guide plate. Furthermore, the high strength of the crankshaft 50 and the bearing support design of the positioning boss allow the drive assembly to withstand the radial and axial forces during the rotation of the second air guide plate 30, preventing bending deformation of the crankshaft 50 and ensuring that the air guide plate maintains a stable rotation trajectory without wobbling or deviation during long-term operation.

[0055] In one embodiment, the first air guide plate 20 is an arc-shaped plate.

[0056] Specifically, the curved structure of the arc-shaped plate can actively guide the cold air. Compared with the traditional flat air guide plate, the pressure loss of the airflow is reduced when the airflow flows along the arc-shaped surface, and the guiding accuracy is improved. This effectively prevents the cold air from sinking prematurely due to guiding deviation, and ensures the efficient realization of the cooling air supply logic of "first roof diffusion and then natural settling".

[0057] In one embodiment, the second air guide plate 30 is a flat plate.

[0058] Specifically, the flat structure of the flat plate can form a "linear guide" for the hot airflow. Compared with the curved plate, the airflow has a smaller directional deviation when flowing along the plane, and the guiding accuracy is improved. This precise guiding effect ensures that the hot airflow reaches the foot area directly, quickly raising the ground temperature and solving the pain point of "hot at the top and cold at the bottom" in traditional air conditioning heating.

[0059] This utility model also discloses an air conditioner, including the air conditioning air guide device as described above.

[0060] Specifically, by setting up an air conditioning air guide device and adopting independent drive control of the first air guide plate 20 and the second air guide plate 30, precise matching of air supply modes under cooling and heating conditions is achieved. In heating mode, the first air guide plate 20 is closed (to prevent hot air from diffusing upwards), while the second drive component drives the second air guide plate 30 to open, allowing hot air to be delivered to the lower indoor area along the guiding direction of the second air guide plate 30. This design directly solves the problem of hot air not sinking during heating, effectively breaking the temperature stratification phenomenon of "hot above and cold below," allowing hot air to quickly cover the human activity area, significantly improving heating efficiency and indoor temperature uniformity. In cooling mode, the second air guide plate 30 is closed (to prevent cold air from blowing directly downwards onto the human body) or driven to swing at a preset angle within a small range, while the first drive component drives the first air guide plate 20 to open, allowing cold air to be guided into the room along the first air guide plate 20. The design, which diffuses air diagonally upwards or horizontally, avoids the discomfort caused by direct cold air blowing during cooling. It also utilizes the physical property of cold air naturally sinking, allowing the cold air to slowly diffuse from the top to the entire area, achieving rapid cooling while avoiding excessive local temperature differences, further optimizing the temperature regulation effect under cooling conditions. In addition, the first air guide plate 20 and the second air guide plate 30 correspond to independent first and second drive components, respectively, and the two can achieve completely independent motion control. Compared with the bound motion of traditional linked air guide plates, they have a more flexible adjustment dimension. The "preset angle back-and-forth swing" design of the second air guide plate 30 in the cooling state can further optimize the cold air diffusion range by swinging within a small range while avoiding direct blowing. Compared with the existing air guide plates' "single fixed angle air delivery", it can more accurately adapt to the air delivery needs of different indoor space layouts, reduce airflow dead zones, and improve the uniformity of indoor airflow distribution.

[0061] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An air conditioning air guide device for use in the indoor unit of an air conditioner, the indoor unit comprising a body; characterized in that, include: The machine body is provided with an air outlet. The machine body is also provided with a first drive assembly and a second drive assembly in the area of ​​the air outlet. The first air guide plate and the second air guide plate are arranged along the length direction of the air outlet and are respectively disposed at the upper and lower parts of the air outlet. One end of the first air guide plate is movably connected to the machine body and the other end is driven to the first drive assembly. One end of the second air guide plate is movably connected to the machine body and the other end is driven to the second drive assembly. When the machine body is in heating mode, the first air guide plate is closed, and the second drive component drives the second air guide plate to open. When the machine body is in a cooling state, the first drive component drives the first air guide plate to open, and the second air guide plate to close, or the second drive component drives the second air guide plate to swing back and forth at a preset angle.

2. The air conditioning air guide device according to claim 1, characterized in that, When the machine body is in heating mode, the opening angle of the second air guide plate is greater than 90 degrees to form a downward vertical hot air delivery mode.

3. The air conditioning air guide device according to claim 1, characterized in that, When the machine body is in a cooling state, the first drive component drives the first air guide plate to open to be parallel to the machine body, so as to form a horizontal cooling air delivery mode.

4. The air conditioning air guide device according to claim 3, characterized in that, When the machine body is in a cooling state, the second drive component drives the second air guide plate to swing back and forth within a range of ±15 degrees.

5. The air conditioning air guide device according to claim 1, characterized in that, The body is fitted with a bushing, and both the first air guide plate and the second air guide plate are provided with protrusions corresponding to the bushing.

6. The air conditioning air guide device according to claim 5, characterized in that, The first drive assembly includes a first motor and a crankshaft. The first motor is connected to the body, and one end of the crankshaft is driven to the first motor, while the other end is driven to the first air guide plate.

7. The air conditioning air guide device according to claim 5, characterized in that, The second drive assembly includes a second motor and a crankshaft. The second motor is connected to the body, and one end of the crankshaft is driven to the second motor, while the other end is driven to the second air guide plate.

8. The air conditioning air guide device according to claim 1, characterized in that, The first air guide plate is an arc-shaped plate.

9. The air conditioning air guide device according to claim 1, characterized in that, The second air guide plate is a flat plate.

10. An air conditioner, characterized in that, Includes the air conditioning air guide device as described in any one of claims 1-9.

Images