Wall-mounted air conditioner indoor unit and air conditioner

Abstract

The utility model provides a kind of wall-mounted air conditioner indoor unit and air conditioner, it is related to air conditioner technical field to solve the problem of wall-mounted air conditioner indoor unit zero wind mode air output little.Wall-mounted air conditioner indoor unit includes mainframe shell, air outlet barrel and air outlet opening and closing mechanism, and heat exchange cavity is formed in mainframe shell, and air outlet cavity is formed in air outlet barrel, and the peripheral wall of air outlet barrel is provided with the air hole that is penetrated along the direction of wall thickness, and heat exchange cavity is connected with air outlet cavity by inner air outlet;Air outlet barrel is relatively rotatably arranged with mainframe shell, and air outlet opening and closing mechanism is arranged at the end of air outlet barrel and is used to open or close the outer air outlet arranged in air outlet barrel.It can improve the air output of wall-mounted air conditioner indoor unit zero wind mode.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and more specifically, to a wall-mounted air conditioner indoor unit and an air conditioner. Background Technology

[0002] In wall-mounted air conditioner indoor units, the air outlet is usually located at the junction of the lower part of the front surface and the front part of the lower surface, and the width of the air outlet is usually a few centimeters to about ten centimeters. However, if the air conditioner has a zero-wind function, or is called a diffuser function, no wind or gentle wind function, then a diffuser panel needs to be installed to block or basically block the air outlet of the air conditioner.

[0003] The air diffuser panel has many small-diameter air vents. When the airflow from the air conditioner encounters the solid part of the diffuser panel, it is dispersed by the solid part. The airflow from the air conditioner can only flow out through the air vents. Because the diameter of the air vents is very small, usually only a few millimeters in size, the airflow passing through the air vents only travels a short distance on the leeward side of the diffuser panel before mixing with the air, thus not forming a noticeable airflow. When the user is indoors, the user can hardly feel the cold air blowing on them.

[0004] Due to the size limitations of the air outlet of the air conditioner, the size of the diffuser is usually similar to that of the air outlet. This results in a small total area of ​​the diffuser holes and a small total cross-sectional area of ​​the airflow channel through the diffuser, which in turn leads to a small airflow. In other words, the airflow under the zero-wind-feel function is small, making it difficult to reach the required temperature quickly. Utility Model Content

[0005] The first objective of this utility model is to provide a wall-mounted air conditioner indoor unit to solve the technical problem of low air volume in the zero-wind mode of existing wall-mounted air conditioner indoor units.

[0006] The first aspect of this utility model provides a wall-mounted air conditioner indoor unit, including a main unit housing, an air outlet duct, and an air outlet opening and closing mechanism. A heat exchange chamber is formed inside the main unit housing, and an air outlet chamber is formed inside the air outlet duct. The peripheral wall of the air outlet duct is provided with a diffuser hole that penetrates along the wall thickness direction. The heat exchange chamber is connected to the air outlet chamber through an inner air supply port. The air outlet duct is rotatably disposed relative to the main unit housing, and the air outlet opening and closing mechanism is disposed at the end of the air outlet duct and is used to open or close the air outlet disposed on the air outlet duct.

[0007] The beneficial effects of this wall-mounted air conditioner indoor unit are: Because of the addition of an air outlet duct, the area of ​​the duct can be significantly larger than the air outlet area of ​​a traditional wall-mounted air conditioner indoor unit. This allows for the placement of ventilation holes over a larger area, resulting in a larger airflow volume while maintaining the same density, size, and other conditions for ventilation holes, thus improving the speed of temperature regulation. Furthermore, by designing the air outlet duct to rotate relative to the main unit casing, when the air conditioner is in heating mode, the end of the air outlet duct can be pointed downwards. Utilizing the air outlet opening and closing mechanism, the outdoor air outlet duct is opened, blowing air downwards. This helps the wall-mounted air conditioner indoor unit to blow hot air downwards, improving the uniformity of indoor temperature. Moreover, the greater length of the air outlet duct itself better improves the directionality of the airflow, further facilitating the downward blowing of hot air.

[0008] In an optional technical solution, the air outlet duct includes a duct body and a rotating connecting duct fixedly connected to the duct body, the duct body being provided with the air dissipation hole; the rotating connecting duct is rotatably connected to the front of the main unit housing.

[0009] By fixing the cylinder body to the rotating connecting cylinder and making the rotating connecting cylinder rotatably connected to the front of the main housing, the cylinder body and the rotating connecting cylinder can rotate together. This is beneficial for supporting the air duct through the rotation of the front of the main housing. In addition, the part that drives the rotation of the air duct can be set inside the main housing, so as not to place the drive mechanism outside the main housing and affect the aesthetics.

[0010] In an optional technical solution, the rotating connecting cylinder extends into the front wall panel of the main housing, and the extending end of the rotating connecting cylinder into the front wall panel is provided with a rotating input part.

[0011] This configuration allows the mechanism that drives the rotating connecting cylinder to be located in the heat exchange chamber without affecting the airflow in the air outlet chamber, which helps improve air outlet efficiency.

[0012] In an optional technical solution, the rotary input part includes a gear tooth portion disposed on the outer peripheral surface of the extended end, and the wall-mounted air conditioner indoor unit further includes a duct drive mechanism. The duct drive mechanism includes a duct drive component and a duct transmission assembly. The duct drive component is drively connected to the duct transmission assembly. The duct transmission assembly has teeth, and the teeth of the duct transmission assembly mesh with the gear tooth portion of the extended end.

[0013] By utilizing the meshing of the teeth of the air duct transmission assembly with the gear teeth at the extended end, torque is input to the rotating input part. As long as the teeth apply force to the gear teeth, torque relative to the center of the rotating connecting cylinder can be generated without creating a dead point. Furthermore, it can reduce the radial force during transmission, which is beneficial for controlling the frictional resistance and frictional resistance torque of the rotating connecting cylinder, thereby improving drive efficiency.

[0014] In an optional technical solution, the length direction of the air outlet duct is perpendicular to the rotation axis of the air outlet duct.

[0015] This setting maximizes the speed of the hot air discharged downwards from the air outlet in heating mode, allowing the hot air to sink to a lower position and mix better with the indoor air. This increases the temperature at the bottom of the room and improves the uniformity of the indoor temperature.

[0016] In an optional technical solution, the air outlet duct is further provided with a deflector, which is used to deflect the airflow that enters the air outlet cavity from the inner air inlet toward the outer air outlet.

[0017] By setting a deflector, the forward airflow from the inner air inlet to the outlet cavity can be converted into airflow along the length of the outlet duct, thereby reducing the resistance of the airflow from the inner air inlet to the outer air outlet and improving the airflow efficiency.

[0018] In an optional technical solution, the heat exchange chamber is connected to the air outlet chamber through multiple parallel and spaced internal air inlets, the deflecting air casing is disposed between the first end and the second end of the air outlet duct, and the air outlet opening and closing mechanism is located at the first end; the air outlet duct is provided with the air dispersing hole between the second end and the deflecting air casing, and a gap is left between the outlet end of the deflecting air casing and the inner circumferential surface of the air outlet duct.

[0019] By arranging multiple internal air outlets side-by-side at intervals, multiple air conditioning fans can be correspondingly installed, allowing for a wider range of intake airflow after heat exchange in the left and right directions, thereby improving heat exchange efficiency. The deflector is positioned between the first and second ends of the air outlet duct, with diffusers in this area. A gap is left between the deflector and the inner circumference of the air outlet duct. In zero-wind mode, air entering the air outlet duct through the internal air outlets passes through this gap into the aforementioned area, where it is dispersed by the diffusers and discharged from the air outlet duct, thus increasing the total airflow.

[0020] In an optional technical solution, the air outlet opening and closing mechanism includes a guide vane, which is rotatably disposed relative to the end face of the air outlet tube. The guide vane is drivenly connected to a vane drive component, and the guide vane can switch between a first position that opens the air outlet and guides the airflow and a second position that blocks the air outlet.

[0021] By setting the air guide vanes to switch between a first position and a second position, not only can the air guide vanes be used to close the outlet air vent, allowing the exhaust airflow to be discharged from the air chamber along the diffuser holes, but the air guide vanes can also be used to swing to different positions to control the direction of the airflow, expand the range of influence of the exhaust airflow, and improve the user experience.

[0022] In an optional technical solution, the end face of the air outlet duct is provided with a diffuser hole that extends through the wall thickness direction.

[0023] Setting up ventilation holes in the aforementioned areas can increase the size of the ventilation holes, thereby increasing the air volume.

[0024] The second objective of this utility model is to provide an air conditioner that solves the technical problem of low air volume output of the indoor unit fan in zero-wind mode of a wall-mounted air conditioner.

[0025] The air conditioner provided in the second aspect of this utility model includes a wall-mounted indoor unit and an outdoor unit of the air conditioner, as described above, wherein the outdoor unit is connected to the wall-mounted indoor unit via a refrigerant connection pipe.

[0026] By installing the aforementioned wall-mounted air conditioner indoor unit in the air conditioner, the air conditioner accordingly possesses all the advantages of the aforementioned wall-mounted air conditioner indoor unit, which will not be elaborated upon here. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments or background art of this utility model, the drawings used in the description of the embodiments or background art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a structural schematic diagram of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model.

[0029] Figure 2 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, viewed from another direction.

[0030] Figure 3 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to the downward position.

[0031] Figure 4 This is a side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to the downward position.

[0032] Figure 5 This is a side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to a horizontal position.

[0033] Figure 6 This is a front sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. The section is located on the rear side of the front wall panel of the main unit housing.

[0034] Figure 7 This is a top sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model. The air conditioner fan is omitted in the figure.

[0035] Explanation of reference numerals in the attached figures: 100 - Main unit casing; 110 - Heat exchange chamber; 120 - Air inlet; 130 - Indoor heat exchanger; 140 - Air conditioning fan; 150 - Front wall panel; 151 - Internal air outlet; 160 - Decorative ring; 200 - Air outlet duct; 210 - Duct body; 211 - Air diffuser hole; 220 - Rotating connecting duct; 221 - Rotating input part; 222 - Gear tooth part; 230 - Air outlet duct transmission assembly; 240 - Air outlet duct drive component; 250 - Steering fan housing; 300 - Air outlet opening and closing mechanism; 310 - Air guide vane; 320 - Blade drive component; 330 - Blade drive gear; 340 - Blade driven gear; 350 - Blade shaft; 360 - Pivot joint. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0037] Unless otherwise specified, the definitions of direction in this application are as follows: "Front" refers to the side of the wall-mounted air conditioner indoor unit facing the main indoor space, while "rear" refers to the side facing the wall on which it is mounted. "Below" refers to the side of the wall-mounted air conditioner indoor unit facing the ground. "Above" refers to the side of the wall-mounted air conditioner indoor unit facing the ceiling. "Left" and "right" can be defined based on the aforementioned front, rear, and below; that is, when an observer faces the wall where the wall-mounted air conditioner indoor unit is installed, the observer's left hand is considered left, and the observer's right hand is considered right. Furthermore, "inner" and "outer" are defined based on the shape of the component, which is a cavity, box, or cylinder. The side of the cavity, box, or cylinder facing its internal space is the inner side, and the outer side is the side of the cavity or box facing its external space.

[0038] Example 1: Figure 1 This is a structural schematic diagram of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. Figure 2 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, viewed from another direction. Figure 3 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to the downward position. Figure 4This is a side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to the downward position. Figure 5 This is a side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the air outlet duct is rotated to a horizontal position. Figures 1-5 As shown, the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model includes a main unit housing 100, an air outlet duct 200, and an air outlet opening and closing mechanism 300. A heat exchange chamber 110 is formed inside the main unit housing 100, and an air outlet chamber is formed inside the air outlet duct 200. The peripheral wall of the air outlet duct 200 is provided with a diffuser hole 211 that penetrates along the wall thickness direction. The heat exchange chamber 110 is connected to the air outlet chamber through an inner air supply port 151. The air outlet duct 200 is rotatably arranged relative to the main unit housing 100. The air outlet opening and closing mechanism 300 is arranged at the end of the air outlet duct 200 and is used to open or close the air outlet provided in the air outlet duct 200.

[0039] Because of the inclusion of the air outlet duct 200, its area is significantly larger than that of a traditional wall-mounted air conditioner indoor unit's air outlet. This allows for the placement of the air diffuser holes 211 over a larger area, resulting in a larger airflow volume and improved temperature regulation speed while maintaining the density, size, and other conditions of the diffuser holes 211. Furthermore, by configuring the air outlet duct 200 to rotate relative to the main unit casing 100, it can be positioned so that, in heating mode, the end of the air outlet duct 200 faces downwards. This, combined with the air outlet opening and closing mechanism 300, opens the outdoor air outlet duct 200, blowing air downwards. This facilitates the downward blowing of hot air from the wall-mounted air conditioner indoor unit, improving indoor temperature uniformity. Moreover, the relatively long length of the air outlet duct 200 further enhances the directionality of the airflow, ensuring the downward blowing of hot air.

[0040] For example, taking a 1-horsepower or 1.5-horsepower air conditioner as an example, the width of the air outlet of a traditional wall-mounted air conditioner indoor unit is usually 5 to 8 centimeters, rarely exceeding 10 centimeters. Therefore, the area where the diffuser 211 can be set in a traditional wall-mounted air conditioner indoor unit is equal to this width multiplied by the length of the air outlet. However, this application sets the diffuser 211 on the air outlet duct 200, and the diffuser 211 can be set 360° around the perimeter of a section of the air outlet duct 200. Moreover, if the area where the diffuser 211 is set in the air outlet duct 200 in this embodiment is equal to or greater than the left-right dimension of the main unit housing 100, the length of the area where the diffuser 211 is set can be further increased. Therefore, the width of the area where the diffuser 211 is set can be 30 centimeters or 50 centimeters or even more, and a larger air volume can be obtained while keeping the distribution density, size and other conditions of the diffuser 211 unchanged.

[0041] Specifically, in this embodiment, the air outlet duct 200 is located in front of the main housing 100, that is, the heat exchange chamber 110 is located behind the air outlet. The front wall panel 150 of the heat exchange chamber 110 is the same as the front wall panel 150 of the main housing 100. The main housing 100 has air inlets 120 at its top and bottom, and an indoor heat exchanger 130 is located inside the main housing 100, i.e., in the heat exchange chamber 110. Air entering the heat exchange chamber 110 from the air inlets 120, after heat exchange with the indoor heat exchanger 130, can be drawn in by the air conditioning fan 140. In this embodiment, the air conditioning fan 140 is located at the front of the heat exchange chamber 110 and installed on the partition plate. The type of air conditioning fan 140 can be an axial flow fan, a mixed flow fan, or a vortex fan, and the axis of these air conditioning fans 140 is arranged along the front-to-back direction. In this embodiment, the two air conditioning fans 140 of the above type can be arranged in a left-right direction, and the internal air outlet on the front wall panel 150 is correspondingly provided with the above-mentioned fans, and the shape can be circular. Of course, in another implementation, the air conditioning fan 140 can also be a cross-flow fan, the axis of the cross-flow fan is in the left-right direction, and the internal air outlet on the front wall panel 150 can be rectangular or rounded rectangle, the length of the rectangle or rounded rectangle is similar to the length of the impeller of the cross-flow fan.

[0042] In this embodiment, the end of the air outlet duct 200 is cylindrical. Alternatively, to increase the area within the air outlet duct 200 where the ventilation holes 211 can be located, the air outlet duct 200 can be elliptical. The cross-section of the elliptical cylindrical duct perpendicular to its axis is elliptical, or it can be a quadrangular prism. When the air outlet duct 200 is horizontal, the major axis of the elliptical cross-section is vertical, and the minor axis is horizontal, or these two can be interchanged. In this embodiment, the ventilation holes 211 penetrate the peripheral wall of the air outlet duct 200 along its thickness direction. Preferably, the extension direction of the ventilation holes 211 is consistent with the thickness direction of the peripheral wall of the air outlet duct 200. Of course, in another implementation, the extension direction of the ventilation holes 211 can be set at an angle to the thickness direction of the corresponding peripheral wall. Of course, for the front of the main unit housing 100, holes can also be provided to achieve a consistent appearance. An airtight front wall plate 150 can be provided on the inner side of the front of the main unit housing 100 to block the front of the holes in the main unit housing 100.

[0043] In this embodiment, all air diffusers 211 are circular. Of course, in other implementations, the air diffusers 211 can be other shapes, such as rectangles, rhombuses, or rounded rectangles or rounded rhombuses. The air diffusers 211 can be arranged in columns, with each column of air diffusers 211 projected horizontally into an adjacent column. More specifically, the air diffusers 211 can be located at the midpoint between two adjacent air diffusers 211. Furthermore, if the air outlet duct 200 is unfolded along its circumference, three adjacent air diffusers 211 can be arranged in an equilateral triangle.

[0044] In this embodiment, two parallel and spaced internal air outlets 151 are provided between the main unit housing 100 and the air outlet duct 200. Each internal air outlet 151 corresponds to an air outlet duct 200 that can switch from a horizontal position or an angle slightly above the horizontal position to a vertical position. When the air outlet duct 200 is in the horizontal position, its length direction is left-right. When the indoor unit of the wall-mounted air conditioner is in zero-wind mode, the air outlet duct 200 can be in a horizontal position or an angle slightly above the horizontal position; this mode is applicable to the cooling function. Because the area of ​​the air diffusers 211 that can be provided on the air outlet duct 200 is significantly increased, it can even meet the air volume requirements under normal cooling conditions. When the air conditioner is in heating mode, the air outlet duct 200 can be in a vertical position, with one end of the air outlet duct 200 facing downwards and the air outlet in an open state. When the airflow enters the air outlet duct 200 from the internal air outlet 151, it continues to flow along the air outlet duct 200 until it is discharged from the air outlet.

[0045] Furthermore, it should be noted that when the air outlet opening and closing mechanism 300 opens the outlet, although the air outlet duct 200 is provided with diffuser holes 210, and the airflow may be discharged from the diffuser holes 210, the resistance of the outlet after it is opened by the air outlet opening and closing mechanism 300 is less than, or even much less than, the sum of the resistances of the airflow if it were only discharged from all the diffuser holes 210. Therefore, the airflow is mainly, or even almost entirely, discharged from the outlet cavity through the outlet, with only a very small amount of airflow being discharged from the diffuser holes 210.

[0046] like Figures 1 to 5 As shown, optionally, the air outlet duct 200 includes a duct body 210 and a rotating connecting duct 220 fixedly connected to the duct body 210. The duct body 210 is provided with an air diffuser hole 211. The rotating connecting duct 220 is rotatably connected to the front of the main unit housing 100.

[0047] The cylinder body 210 is fixedly connected to the rotating connecting cylinder 220, and the rotating connecting cylinder 220 is rotatably connected to the front of the main housing 100. The cylinder body 210 and the rotating connecting cylinder 220 can rotate together, which is beneficial to support the air outlet 200 by rotating the front of the main housing 100. Moreover, the part that drives the air outlet 200 to rotate can be set inside the main housing 100, so that the drive mechanism does not need to be set outside the main housing 100, which would affect the aesthetics.

[0048] Of course, in another implementation, the cylinder body 210 can be rotatably connected to the rotating support cylinder, and the rotating support cylinder can be fixedly connected to the main housing 100. For example, an arc-shaped end-face rack can be provided on the front surface of the main housing 100, and a motor for driving the cylinder body 210 to rotate can be provided on the cylinder body 210. The motor meshes with the end-face rack through a gear. Alternatively, the gear connected to the motor can be a bevel gear, and the end-face rack is actually the tooth area of ​​the bevel gear. Of course, the meshing method of the gear and the end-face rack can also be applied to the scheme in which the cylinder body 210 and the rotating connecting cylinder 220 are fixedly connected.

[0049] like Figure 4 and Figure 5 As shown, optionally, the rotating connecting cylinder 220 extends into the front wall plate 150 of the main housing 100, and the end of the rotating connecting cylinder 220 extending into the front wall plate 150 of the main housing 100 is provided with a rotating input part 221.

[0050] This configuration allows the mechanism that drives the rotating connecting cylinder 220 to be located in the heat exchange chamber 110 without affecting the airflow in the air outlet chamber, which is beneficial for improving air outlet efficiency.

[0051] In addition to the implementation method described later, a linkage mechanism can also be used to drive the rotating connecting cylinder 220 to rotate within the heat exchange chamber 110. Since the edge of the rotating connecting cylinder 220 has a radius of rotation relative to its center, if a connecting rod A is pivotally connected to the edge of the rotating connecting cylinder 220, then the pivot point of the rotating connecting cylinder 220 connected to connecting rod A is the rotation input part 221. The distance between the edge of the rotating connecting cylinder 220 and its center can be considered as a connecting rod B. Driving a connecting rod C, along with the front wall plate 150 of the heat exchange chamber 110, forms a four-bar linkage mechanism to drive the rotating connecting cylinder 220 to rotate.

[0052] Figure 6 This is a front sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. The section is cut at the rear side of the front wall panel of the main unit housing. Figures 4 to 6 As shown, optionally, the rotary input part 221 includes a gear tooth part 222 disposed on the outer peripheral surface of the extended end. The wall-mounted air conditioner indoor unit also includes a duct drive mechanism, which includes a duct drive component 240 and a duct transmission assembly 230. The duct drive component 240 is connected to the duct transmission assembly 230 in a transmission connection. The duct transmission assembly 230 has teeth, and the teeth of the duct transmission assembly 230 mesh with the gear tooth part 222 at the extended end.

[0053] By utilizing the meshing of the teeth of the air duct transmission assembly 230 with the gear teeth 222 at the extended end, torque is input to the rotation input part 221. As long as the teeth apply force to the gear teeth 222, torque can be generated relative to the center of the rotating connecting cylinder 220 without creating a dead point. Furthermore, it can reduce the radial force during transmission, which is beneficial for controlling the frictional resistance and frictional resistance torque of the rotating connecting cylinder 220, thereby improving the driving efficiency.

[0054] In air conditioner indoor units, components such as the air sweeping blades typically have very thin shafts, on the order of a few millimeters. Therefore, although there is friction between the shaft and the mating holes, the frictional resistance torque generated by this friction is relatively small, allowing for the use of a smaller motor. However, the rotating connecting cylinder 220 in this embodiment is different. Since the inlet end of the rotating connecting cylinder 220 is the internal air outlet 151, it cannot be made too small to ensure adequate airflow. For a typical wall-mounted air conditioner indoor unit, the internal air outlet 151 can easily reach 100 millimeters or larger. In this case, the same amount of friction can generate a large torque. Moreover, since the air outlet duct 200 has a cantilever beam mounting structure relative to the main unit housing 100, the pressure at the opening position of the rotating connecting cylinder 220 and the main unit housing 100 is already relatively large. If the radial component of the force driving the rotating connecting cylinder 220 is even larger, it will significantly increase its rotational frictional resistance. Therefore, this application adopts a gear transmission method, which uses the meshing of the teeth of the transmission component and the gear teeth 222 of the rotation input part 221 to control the friction torque when the rotating connecting cylinder 220 rotates.

[0055] Specifically, in this embodiment, the duct drive component 240 can be a duct drive motor, and the duct transmission assembly 230 can be a duct transmission gear. The duct transmission gear is fixedly connected to the power output shaft of the duct drive motor, that is, the duct drive component 240 and the duct transmission assembly 230 are connected in a transmission manner. The teeth of the duct transmission gear mesh with the gear teeth 222 of the rotation input part 221. In this embodiment, one duct drive motor drives one rotating connecting cylinder 220 to rotate. Of course, in another implementation, two duct drive motors can be used to drive one rotating connecting cylinder 220 to rotate. The duct drive gears on the two duct drive motors used to drive each rotating connecting cylinder 220 and the center of the rotating connecting cylinder 220 are arranged collinearly to reduce the effect of increased frictional resistance caused by the radial component force of the gear meshing.

[0056] In another implementation, the teeth on the rack can mesh with the gear teeth 222 of the rotation input unit 221. For example, the output gear of a motor can drive two racks that are relatively far apart or relatively close together, and each rack can mesh with the gear teeth 222 of the rotation input unit 221, thereby ultimately driving the rotating connecting cylinder 220 to rotate.

[0057] like Figures 1 to 5 As shown, optionally, the length direction of the air outlet duct 200 is perpendicular to the rotation axis of the air outlet duct 200.

[0058] This setting maximizes the speed of the hot air discharged downwards from the air outlet 200 in air conditioning heating mode. This allows the hot air to sink to a lower position due to the speed, so as to mix better with the indoor air, thereby increasing the temperature at the bottom of the indoor space and improving the uniformity of indoor temperature.

[0059] The length direction of the air outlet duct 200 is perpendicular to the rotation axis of the air outlet duct 200. It is not limited to the included angle between the two being 90°. An angle more or less than 0.1° is not acceptable. In this application, for example, the included angle between the two is in the range of 80° to 100°, and it can also be considered perpendicular.

[0060] Of course, in another implementation, the length direction of the air outlet 200 can be tilted relative to the axis of rotation, for example, set to 60° or 70°, which can also achieve the basic function of blowing hot air downwards.

[0061] Figure 7 This is a top sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model; the air conditioner fan is omitted in the figure. Figure 4 , Figure 5 and Figure 7 As shown, optionally, the air outlet duct 200 is also provided with a deflector 250, which is used to deflect the airflow that enters the air outlet cavity from the inner air outlet 151 toward the outer air outlet.

[0062] By setting the deflector 250, the forward airflow sent into the air outlet cavity by the inner air outlet 151 can be converted into airflow along the length of the air outlet duct 200, thereby reducing the resistance of the airflow from the inner air outlet 151 to the outer air outlet and improving the air outlet efficiency.

[0063] In this embodiment, the steering fan housing 250 corresponds to at least a portion of the inner air outlet. This means that if the inner air outlet has a circular cross-section, the shape of the steering fan housing 250 is approximately: a vertical circle rotated around a tangent line at a point on its edge as its axis. If the cross-section of the air outlet duct 200 perpendicular to the left-right direction is rectangular, the steering fan housing 250 is a quarter-cylinder or elliptical cylinder. Projecting the steering fan housing 250 along the front-back direction completely covers the inner air outlet, thus corresponding to the entire inner air outlet.

[0064] Specifically, in this embodiment, the steering fan housing 250 can be fixedly connected to the rotating connecting cylinder 220. The rotation of the rotating connecting cylinder 220 can drive the cylinder body 210 and the steering fan housing 250 to rotate.

[0065] like Figure 4 and Figure 7 As shown, optionally, the heat exchange chamber 110 is connected to the air outlet chamber through a plurality of parallel and spaced internal air inlets 151, the deflector 250 is disposed between the first end and the second end of the air outlet duct 200, and the air outlet opening and closing mechanism 300 is located at the first end; the air outlet duct 200 is provided with a diffuser hole 211 between the second end and the deflector 250, and a gap is left between the outlet end of the deflector 250 and the inner circumferential surface of the air outlet duct 200.

[0066] By arranging multiple internal air outlets 151 side-by-side at intervals, multiple air conditioning fans 140 can be correspondingly installed, thereby drawing in a larger area of ​​heat-exchanged airflow in the left and right directions to improve heat exchange efficiency. A deflector 250 is positioned between the first and second ends of the outlet duct 200, and a diffuser hole 211 is provided in this area. A gap is left between the deflector 250 and the inner circumferential surface of the outlet duct 200. In zero-wind mode, air entering the outlet duct 200 through the internal air outlets 151 passes through this gap into the aforementioned area, where it is diffused by the diffuser hole 211 and discharged from the outlet duct 200, thereby increasing the total air volume.

[0067] Specifically, in this embodiment, two internal air outlets 151 are arranged side-by-side and spaced apart. In each air outlet duct 200, the internal air outlet 151 is approximately 2 / 3 of the length of the air outlet duct 200 from the first end of the air outlet, and approximately 1 / 3 of the length of the air outlet duct 200 from the second end. The air outlets of the two air outlet ducts 200 are arranged opposite to each other; that is, when the two air outlet ducts 200 are in a horizontal state, the air outlet of the left air outlet duct 200 is at its left end, and the air outlet of the right air outlet duct 200 is at its right end. Therefore, in the air outlet duct 200, setting the area of ​​the internal air outlet 151 away from the first end with a diffuser hole 211 can increase the number of diffuser holes 211, thereby increasing the air volume.

[0068] In the diffused air mode, although a directional air housing 250 is provided, the air volume in the zero-air mode is smaller than that in the normal air outlet. Moreover, there is still some resistance when the air is discharged from the multiple diffuser holes 211. Therefore, the airflow entering the air outlet cavity can reach the space between the directional air housing 250 and the second end through the gap between the inner circumferential surface of the directional air housing 250 and the air outlet duct 200, and be discharged from the diffuser holes 211 in this area to improve the overall air volume.

[0069] Furthermore, a decorative ring 160 can be installed on the front wall panel 150 of the main unit housing 100. The decorative ring 160 is located in the middle of the front wall panel 150 in the left-right direction, and its axis is in the left-right direction. Since there will be a gap between the two second ends of the two air outlet ducts 200 when they are rotated to a horizontal position, the decorative ring 160 can cover this gap at certain angles to improve the aesthetics of the air conditioner. Of course, the position and size of the decorative ring 160 should ensure that it does not interfere with the rotation of the air outlet ducts 200.

[0070] like Figures 1 to 4 and Figure 7 As shown, optionally, the air outlet opening and closing mechanism 300 includes a guide vane 310, which is rotatably disposed relative to the end face of the air outlet duct 200. The guide vane 310 is connected to the vane drive member 320, and the guide vane 310 can switch between a first position of opening the air outlet and guiding the airflow and a second position of blocking the air outlet.

[0071] By setting the guide vane 310 to switch between a first position and a second position, not only can the guide vane 310 be used to close the outlet air vent, thereby allowing the exhaust airflow to be discharged from the air outlet cavity along the diffuser hole 211, but the guide vane 310 can also be used to swing to different positions to control the direction of the airflow, expand the influence range of the exhaust airflow, and improve the user experience.

[0072] Specifically, in this embodiment, a blade drive motor can be provided on the end face of the cylinder body 210 as a blade drive component 320. A blade drive gear 330 is fixedly mounted on the power output shaft of the blade drive motor. The blade drive gear 330 meshes with a blade driven gear 340, which is fixedly mounted on the blade shaft 350. Multiple guide vanes 310 are pivotally connected to blade connecting rods (not shown). The multiple guide vanes 310 are connected by blade connecting rods to form a four-bar linkage, ensuring that the multiple guide vanes 310 remain parallel. One guide vane 310 is driven to rotate by the blade drive motor, and the multiple guide vanes 310 rotate synchronously. A pivot part 360 can be provided on the inner surface of the air outlet duct 200 for pivoting the blade shaft 350. Alternatively, in another implementation, a common rack can mesh with a gear mounted on each guide vane 310, without using blade connecting rods.

[0073] In this embodiment, with the air outlet duct 200 remaining horizontal, the rotation axis of the guide vane 310 can be set to either a front-to-back direction or a vertical direction. When the guide vane 310 rotates in the former direction, when the air outlet duct 200 rotates to a vertically downward position, the guide vane 310 can guide the airflow from the outlet vent in a left-to-right direction. When the guide vane 310 rotates in the latter direction, when the air outlet duct 200 rotates to a vertically downward position, the guide vane 310 can guide the airflow forward.

[0074] Of course, in another implementation, the opening and closing of the outlet air vent can be controlled without the guide vane 310. Specifically, an inner and outer cylinder with opposite rotation directions can be set at the end of the outlet duct 200. The relative rotation direction of the inner and outer cylinders is consistent with the length direction of the outlet duct 200. Openings are provided on the peripheral walls of the outer and inner cylinders respectively. When the openings of the two cylinders correspond, an outlet air vent is formed. When the openings of the two cylinders are completely misaligned, the outlet air vent is closed. This method can also be used to control the opening and closing of the outlet air vent.

[0075] like Figures 1 to 3 As shown, optionally, the end face of the air outlet duct 200 is provided with a diffuser hole 211 that extends through the wall thickness direction.

[0076] By setting up air diffusers 211 in the aforementioned area, the size of the air diffuser 211 can be increased, thereby increasing the air volume.

[0077] Specifically, the air diffuser 211 can be located in an area outside the outlet on the end face of the cylinder body 210.

[0078] Example 2: Embodiment 2 also provides an air conditioner, including a wall-mounted indoor unit and an outdoor unit of any of the above-mentioned types, wherein the outdoor unit is connected to the wall-mounted indoor unit via a refrigerant connection pipe.

[0079] By installing the aforementioned wall-mounted air conditioner indoor unit in the air conditioner, the air conditioner accordingly possesses all the advantages of the aforementioned wall-mounted air conditioner indoor unit, which will not be elaborated upon here.

[0080] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0081] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0083] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0084] Therefore, this invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wall-mounted air conditioner indoor unit, characterized in that, The device includes a main housing (100), an air outlet duct (200), and an air outlet opening and closing mechanism (300). A heat exchange chamber (110) is formed inside the main housing (100), and an air outlet cavity is formed inside the air outlet duct (200). The peripheral wall of the air outlet duct (200) is provided with a diffuser hole (211) that extends through the wall thickness direction. The heat exchange chamber (110) is connected to the air outlet cavity through an inner air supply port (151). The air outlet duct (200) is rotatably arranged relative to the main housing (100). The air outlet opening and closing mechanism (300) is arranged at the end of the air outlet duct (200) and is used to open or close the air outlet provided on the air outlet duct (200).

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The air outlet duct (200) includes a duct body (210) and a rotating connecting duct (220) fixedly connected to the duct body (210). The duct body (210) is provided with the air diffuser hole (211). The rotating connecting duct (220) is rotatably connected to the front of the main housing (100).

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The rotating connecting cylinder (220) extends into the front wall plate (150) of the main housing (100), and the end of the rotating connecting cylinder (220) extending into the front wall plate (150) is provided with a rotating input part (221).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The rotary input part (221) includes a gear tooth (222) disposed on the outer peripheral surface of the extended end. The wall-mounted air conditioner indoor unit also includes a duct drive mechanism. The duct drive mechanism includes a duct drive component (240) and a duct transmission assembly (230). The duct drive component (240) is connected to the duct transmission assembly (230) in a transmission connection. The duct transmission assembly (230) has teeth, and the teeth of the duct transmission assembly (230) mesh with the gear tooth (222) of the extended end.

5. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The length direction of the air outlet (200) is perpendicular to the rotation axis of the air outlet (200).

6. The wall-mounted air conditioner indoor unit according to any one of claims 1-5, characterized in that, The air outlet duct (200) is also provided with a deflector shell (250), which is used to deflect the airflow that enters the air outlet cavity from the inner air outlet (151) toward the outer air outlet.

7. The wall-mounted air conditioner indoor unit according to claim 6, characterized in that, The heat exchange chamber (110) is connected to the air outlet chamber through a plurality of parallel and spaced internal air inlets (151). The deflecting air shell (250) is disposed between the first end and the second end of the air outlet duct (200). The air outlet opening and closing mechanism (300) is located at the first end. The air outlet duct (200) is provided with the air diffuser (211) between the second end and the deflecting air shell (250). A gap is left between the outlet end of the deflecting air shell (250) and the inner circumferential surface of the air outlet duct (200).

8. The wall-mounted air conditioner indoor unit according to any one of claims 1-5, characterized in that, The air outlet opening and closing mechanism (300) includes a guide vane (310), which is rotatably disposed relative to the end face of the air outlet (200). The guide vane (310) is connected to the vane drive (320). The guide vane (310) can switch between a first position that opens the air outlet and guides the airflow and a second position that blocks the air outlet.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that, The end face of the air outlet duct (200) is provided with a diffuser hole (211) that runs through the wall thickness direction.

10. An air conditioner, characterized in that, The air conditioner includes an outdoor unit and a wall-mounted indoor unit as described in any one of claims 1-9, wherein the wall-mounted indoor unit is connected to the outdoor unit via a refrigerant connection pipe.

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