Wall-mounted air conditioner indoor unit and air conditioner

Abstract

The utility model provides a kind of wall-mounted indoor unit of air conditioner and air conditioner, it is related to air conditioner technical field to solve the problem of small air output of wall-mounted indoor unit of air conditioner zero wind mode. Wall-mounted indoor unit of air conditioner, including mainframe shell and air outlet tube, heat exchange cavity is formed in mainframe shell;Air outlet tube is located in the front of mainframe shell, air outlet cavity is formed in air outlet tube, the peripheral wall of air outlet tube is equipped with the air hole that penetrates along wall thickness direction, heat exchange cavity is connected air outlet cavity by inner air supply port;Air outlet tube includes upper air outlet tube and lower air outlet tube arranged along up-down direction, upper air outlet tube and lower air outlet tube are configured to be able to approach each other and can be away from each other to form outer air outlet port. It can increase the air output under 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 and an air outlet duct. A heat exchange chamber is formed inside the main unit housing. The air outlet duct is located in front of the main unit housing and forms an air outlet cavity 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 cavity through an internal air supply port. The air outlet duct includes an upper air outlet duct and a lower air outlet duct arranged in a vertical direction. The upper air outlet duct and the lower air outlet duct are configured to be able to approach each other and move away from each other to form an external air outlet.

[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 ​​which can be significantly larger than the air outlet area of ​​a traditional wall-mounted air conditioner indoor unit, a larger area can be used to install ventilation holes. This allows for a larger airflow while maintaining the same density, size, and other conditions for the ventilation holes, thus improving the speed of temperature regulation. Furthermore, the upper and lower air outlet ducts can be positioned close to or far apart. When they are far apart, an outlet vent is formed in the center of the front surface of the wall-mounted air conditioner indoor unit. The airflow entering the outlet cavity from the internal air supply vent can then be exhausted into the indoor environment through the outlet vent, achieving both cooling and heating functions. This allows for greater airflow to regulate the indoor temperature in direct-blow mode.

[0008] In an optional technical solution, the air outlet cavity is provided with a movable air guide plate, which is configured to guide the airflow forward and downward when the air outlet is formed.

[0009] By setting up a movable air guide plate, when the air conditioner is in heating mode, the airflow discharged from the internal air outlet is guided by the movable air guide plate to form a forward and downward airflow at the external air outlet. This allows the hot airflow to be blown forward and downward from the front surface of the air conditioner, increasing the temperature of the lower part of the indoor space and improving the temperature uniformity of the room in heating mode.

[0010] In an optional technical solution, the air outlet cavity and the heat exchange cavity are separated by a middle partition plate. The middle partition plate is provided with an internal air supply assembly, which forms the internal air supply port. The movable air guide plate is configured to overlap the upper front edge of the internal air supply assembly.

[0011] This configuration ensures that, in direct-blow mode, the airflow from the internal air outlet to the external air outlet is blocked by the movable air guide plate and cannot flow upwards, so that as much of the airflow as possible is guided by the movable air guide plate and blown out to the external air outlet.

[0012] In an optional technical solution, when the upper air outlet and the lower air outlet form the external air vent, the rear top edge of the lower air outlet overlaps the lower front edge of the internal air supply assembly.

[0013] This configuration ensures that, in direct-blowing mode, the airflow from the inner air outlet into the outlet cavity is blocked by the top of the lower air outlet and cannot enter the space below the top of the lower air outlet. Instead, the airflow is guided as much as possible by the top of the lower air outlet and the movable air guide plate and blown out of the outlet.

[0014] In an optional technical solution, the internal air supply assembly includes a flow guide hood, which is correspondingly disposed with the internal air supply port. The flow guide hood has an upper flow guide plate portion, which separates the space in the internal air supply assembly from the space above the upper flow guide plate portion. The upper flow guide plate portion is configured to overlap the movable air guide plate.

[0015] By setting an upper guide plate to block the upward movement of airflow from the heat exchange chamber into the air outlet chamber, it is not necessary to completely utilize the movable guide plate to block the upward movement of airflow. This reduces the width of the movable guide plate and minimizes its interference with the air conditioning fan.

[0016] In an optional technical solution, the internal air supply assembly includes a flow guide shroud, which is correspondingly disposed with the internal air outlet. The flow guide shroud has a lower flow guide plate portion, which separates the space in the internal air supply assembly from the space below the lower flow guide plate portion. The lower flow guide plate portion is configured to overlap the upper rear edge of the lower air outlet duct.

[0017] By setting a lower guide vane, the airflow entering the outlet cavity from the heat exchange cavity is blocked from moving downward into the outlet duct when the outlet is formed. This eliminates the need to completely utilize the lower outlet duct to block the downward movement of the airflow, thereby shortening the width of the top of the lower outlet duct and reducing its interference with the air conditioning fan.

[0018] In an optional technical solution, the internal air supply assembly further includes multiple diverter plates, with the multiple diverter plates in each internal air supply assembly arranged in a left-right direction, and the left-right spacing of the multiple diverter plates gradually increasing from back to front.

[0019] If a wall-mounted air conditioner indoor unit uses a fan with its rotation axis pointing forward and backward, the area directly opposite the fan cannot cover most of the unit's length in the left-right direction. The airflow speed is highest in the area directly opposite the fan in the left-right direction, decreasing with distance from the fan. By installing multiple air distribution plates with increasing spacing from back to front, the airflow can be guided, diffusing in the left and right directions. This increases the airflow speed and volume in areas farther from the fan at the outlet, resulting in more even airflow from the outlet and increasing the overall air volume without exceeding the required airflow speed.

[0020] In an optional technical solution, at least a portion of the diverter plate includes a first sub-inclined portion, and the angle between the first sub-inclined portion and the left-right direction gradually decreases from back to front.

[0021] This configuration allows the airflow to gradually flow to the left and right along the first sub-inclined section when it is guided by the first sub-inclined section, thereby reducing abrupt changes in airflow direction and minimizing energy loss when the airflow changes direction.

[0022] In an optional technical solution, at least a portion of the diverter plate includes a second sub-inclined portion, and the angle between the second sub-inclined portion and the left-right direction gradually increases from back to front.

[0023] This design allows for proper convergence of the airflow direction after diffusion through the first inclined section, thus preventing interference between the air outlets of multiple fan components. Simultaneously, it facilitates the conversion of the oblique velocity into a velocity perpendicular to the length of the wall-mounted air conditioner's indoor unit. After completing the airflow diffusion task, this allows the outlet airflow to blow further forward, increasing the range of influence of the air outlet.

[0024] The second objective of this utility model is to provide an air conditioner that solves the technical problem of low air volume in the zero-wind mode of the indoor unit 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 side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed.

[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 outdoor air vent is open.

[0032] Figure 5 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 outdoor air vent is open.

[0033] Figure 6This is a three-dimensional sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed. The cutting plane is a vertical plane perpendicular to the left and right directions.

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

[0035] Figure 8 This is a three-dimensional sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed. The cutting plane is a horizontal plane.

[0036] Figure 9 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, with the upper and lower air outlets omitted when the air outlets are closed.

[0037] 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-Middle partition; 151-Inner air outlet; 160-Guide shroud; 161-Upper guide plate section; 162-Lower guide plate section; 170-Split plate; 171-First sub-inclined section; 172-Second sub-inclined section; 210 - Upper air outlet; 220 - Lower air outlet; 221 - Air diffuser; 222 - Inner air guide; 223 - Transmission column; 230 - Air diffuser hole; 240 - Lower air outlet rotary motor; 310 - Movable air guide plate; 320 - Transmission assembly; 330 - Air guide plate rotary motor. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] 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 side sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed. 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 outdoor air vent is open. Figure 5 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 outdoor air vent is open. Figures 1-4 As shown, the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model includes a main unit housing 100 and an air outlet duct. A heat exchange chamber 110 is formed inside the main unit housing 100. The air outlet duct is located in front of the main unit housing 100 and forms an air outlet cavity inside the air outlet duct. The peripheral wall of the air outlet duct 200 is provided with a diffuser hole 230 that penetrates along the wall thickness direction. The heat exchange chamber 110 is connected to the air outlet cavity through an inner air outlet 151. The air outlet duct includes an upper air outlet duct 210 and a lower air outlet duct 220 arranged in the vertical direction. The upper air outlet duct 210 and the lower air outlet duct 220 are configured to be able to approach each other and move away from each other to form an external air outlet.

[0041] Because of the addition of an air outlet duct, the area of ​​which can be significantly larger than the air outlet area of ​​a traditional wall-mounted air conditioner indoor unit, a larger area can be used to install the air diffusers 230. This allows for a larger air volume while maintaining the density, size, and other conditions of the air diffusers 230, thus improving the speed of temperature regulation. The upper air outlet duct 210 and the lower air outlet duct 220 can be positioned close to or far apart. When they are far apart, an outlet vent is formed in the center of the front surface of the wall-mounted air conditioner indoor unit. The airflow entering the air outlet cavity from the internal air supply vent 151 can be discharged into the indoor environment through the outlet vent, providing both cooling and heating. This achieves temperature regulation of the indoor environment with a larger air volume in direct-blow mode.

[0042] 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 230 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 230 on the air outlet duct, and the diffuser 230 can be set 360° around the perimeter of a section of the air outlet duct. Therefore, the width of the area where the diffuser 230 is set can be 30 centimeters or 50 centimeters or even more. Under the condition that the distribution density, size and other conditions of the diffuser 230 remain unchanged, a larger air volume can be obtained.

[0043] Specifically, in this embodiment, the air outlet is located in front of the main housing 100, that is, the heat exchange chamber 110 is located behind the air outlet. The heat exchange chamber 110 is separated from the air outlet by a partition plate 150 at the front of the heat exchange chamber 110. 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. In this embodiment, the indoor heat exchanger 130 can be a V-shaped heat exchanger with an opening facing forward. Air entering the heat exchange chamber 110 from the air inlet 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 150. 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 fans is arranged along the front-to-back direction. In this embodiment, the two fans of the above type can be arranged in a left-right direction, and the internal air outlet 151 on the partition 150 is correspondingly provided with the fans and can be circular in shape. Of course, in another implementation, the fans can also be cross-flow fans, with the axis of the cross-flow fan in the left-right direction, and the internal air outlet 151 on the partition 150 can be rectangular or rounded rectangle, the length of which is similar to the length of the impeller of the cross-flow fan.

[0044] In this embodiment, the upper air outlet duct 210 and the lower air outlet duct 220 are roughly cylindrical. In practice, since their rear portions are adjacent to the main unit housing 100, and since the upper air outlet duct 210 and lower air outlet duct 220 are arranged vertically in this embodiment, their central angles are less than 360°. The upper air outlet duct 210 and lower air outlet duct 220 protrude from the left and right sidewalls of the main unit housing 100 in the left-right direction, and their central angles can be between 270° and 330°. Because the lower air outlet duct 220 moves while the upper air outlet duct 210 remains stationary in this embodiment, the central angle corresponding to the lower air outlet duct 220 is larger than that of the upper air outlet duct 210. For example, the central angle of the middle portion of the upper air outlet duct 210 in the left-right direction corresponds to the front and rear of the main unit housing 100, and this portion can be between 180° and 220°. The middle part of the lower air outlet duct 220 in the left-right direction corresponds to the front and rear of the main unit housing 100, and the central angle of this part can be 210° to 290°. Alternatively, in order to increase the area in the air outlet duct where the air diffuser 230 can be set, the shape of the air outlet duct can also be set as an elliptical cylinder, and the cross section of the elliptical cylinder perpendicular to the left-right direction is an elliptical cross section.

[0045] Since the air outlet chambers in this embodiment are located on the left and right sides of the heat exchange chamber 110, the range of the air diffuser holes 230 provided on the peripheral wall of the air outlet duct can be consistent with the size of the central angle corresponding to the peripheral wall for most of its length direction. In this embodiment, the air diffuser holes 230 penetrate the peripheral wall of the air outlet duct along the thickness direction, preferably with the extension direction of the air diffuser holes 230 consistent with the thickness direction of the peripheral wall of the air outlet duct. Of course, in another implementation, the extension direction of the air diffuser holes 230 can be set at an angle to the thickness direction of the corresponding peripheral wall.

[0046] In this embodiment, all air diffusers 230 are circular. Of course, in other implementations, the air diffusers 230 can be other shapes, such as rectangles, rhombuses, or rounded rectangles or rounded rhombuses. The air diffusers 230 can be arranged in columns, with each column of air diffusers 230 projected horizontally into an adjacent column. More specifically, the air diffusers 230 can be located at the midpoint between two adjacent air diffusers 230. Furthermore, if the air outlet is unfolded along its circumference, three adjacent air diffusers 230 can be arranged in an equilateral triangle.

[0047] Figure 7 This is a top sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. Figure 8 This is a three-dimensional sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed. The cutting plane is a horizontal plane. Figure 9 This is a schematic diagram of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, omitting the upper and lower air outlet ducts when the air outlet is closed. Figures 7 to 9 As shown, specifically, in this embodiment, the relative distance and proximity of the upper air outlet duct 210 and the lower air outlet duct 220 are achieved as follows: the upper air outlet duct 210 is fixedly disposed relative to the main unit housing 100, while the upper part of the lower air outlet duct 220 can be raised and lowered relative to the main unit housing 100. Further, the lower air outlet duct 220 is rotatably disposed relative to the main unit housing 100, and the axis of rotation of the lower air outlet duct 220 is located behind the center of the lower air outlet duct 220. Therefore, the lower air outlet duct 220 moves along this axis of rotation... Figure 3 and Figure 4The lower air outlet duct 220 rotates counterclockwise, causing the upper part of the lower air outlet duct 220 to descend and the lower rear edge of the lower air outlet duct 220 to move backward. More specifically, in this embodiment, lower air outlet rotary motors 240 are respectively provided on the left and right side walls of the main housing 100. The output shaft of the lower air outlet rotary motor 240 is a flat shaft or a four-sided pyramidal shaft at its end. A transmission column 223 is provided on the inner side of the left and right side walls of the lower air outlet duct 220. The side of the transmission column 223 facing the output shaft of the lower air outlet rotary motor 240 is provided with a countersunk hole that matches the size, shape, and depth of the end of the output shaft, thereby converting the rotation output of the lower air outlet rotary motor 240 into the rotation of the lower air outlet duct. Of course, the output ends of the lower air outlet rotary motors 240 provided on the left and right sides of the main housing 100 should be coaxially arranged, and the actions of the two lower air outlet rotary motors 240 should be synchronized when the lower air outlet duct 220 rotates.

[0048] Of course, in other implementations, the lower part of the upper air outlet duct 210 can be raised or lowered, or both the lower part of the upper air outlet duct 210 and the upper part of the lower air outlet duct 220 can be raised or lowered to form an outlet vent. Alternatively, the lower part of the upper air outlet duct 210 can be raised or lowered with a smaller amplitude while the lower part of the lower air outlet duct 220 can be raised or lowered with a larger amplitude to form an outlet vent. Furthermore, in another implementation, the lower air outlet duct 220 can be raised or lowered as a whole to increase the distance between the upper part of the lower air outlet duct 220 and the lower part of the upper air outlet duct 210, thereby forming an outlet vent. Alternatively, the lower air outlet duct 220 can be raised or lowered along... Figure 3 The tilting and lowering direction is from the upper left to the lower right.

[0049] Furthermore, it should be noted that when the outlet vent is formed, although the lower outlet duct 220 and the upper outlet duct 210 are equipped with diffuser holes 230, and the airflow may be discharged from the diffuser holes 230, the resistance of the outlet vent is less than, or even much less than, the airflow discharged from all the diffuser holes 230 after it is formed. Therefore, the airflow is mainly, or almost entirely, discharged from the outlet cavity, with only a very small amount of airflow discharged from the diffuser holes 230.

[0050] Figure 6 This is a three-dimensional sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model when the outdoor air vent is closed. The cutting plane is a vertical plane perpendicular to the left and right directions. Figures 3 to 6 and Figure 9 As shown, optionally, a movable air guide plate 310 is provided in the air outlet cavity. The movable air guide plate 310 is configured to guide the airflow forward and downward when the air outlet is formed.

[0051] By setting the movable air guide plate 310, when the air conditioner is in heating mode, the airflow discharged from the internal air outlet 151 is guided by the movable air guide plate 310 to form a forward and downward airflow at the external air outlet, so that the hot airflow can be blown forward and downward from the front surface of the air conditioner, thereby increasing the temperature of the lower part of the indoor space and improving the temperature uniformity of the room in heating mode.

[0052] Specifically, in this embodiment, the upper air outlet duct 210 is fixedly disposed relative to the main housing 100, so the movable air guide plate 310 is movably disposed relative to the upper air outlet duct 210. More specifically, the movable air guide plate 310 is rotatably disposed relative to the upper air outlet duct 210. Further, an air guide plate rotary motor 330 is fixedly disposed on the upper air guide duct and the middle partition 150. The power output end of the air guide plate rotary motor 330 is connected to the movable air guide plate 310 through a transmission assembly 320. The power output end of the transmission assembly 320 has a flat shaft or a square prism shaft, while the movable air guide plate 310 is provided with a countersunk hole that matches the size, shape, and depth of the power output end of the transmission assembly 320. When the air guide plate rotary motor 330 rotates, it drives the movable air guide plate 310 to rotate about the rotation axis of the power output end of the transmission assembly 320 through the transmission assembly 320. Furthermore, the transmission assembly 320 includes a pair of meshing gears, or three gears including an idler gear, or uses a pulley for transmission. By setting the transmission assembly 320, the rotation center of the movable air guide plate 310 can be positioned differently from the output shaft axis of the air guide plate rotation motor 330, thereby allowing the movable air guide plate 310 to be arranged more flexibly to meet its air guiding needs.

[0053] In this embodiment, the lower air outlet duct 220 has an air diffuser section 221 and an inner guide section. The inner guide section does not have air diffuser holes 230 and is located at the upper part of the lower air outlet duct 220. The air diffuser section 221 has air diffuser holes 230 and is located at the front and bottom of the lower air outlet duct 220. That is, Figure 3 As shown, the inner air guide section 222 is located at the first section of the lower air outlet duct 220 in a counterclockwise direction, while the air diffuser section 221 is located at the middle and end sections in a counterclockwise direction. When the air outlet is formed, the movable air guide plate 310 is in a rear-high, front-low posture, i.e. Figure 4The right side is higher than the left, as shown in the diagram. An airflow channel is formed between the movable air guide plate 310 and the inner air guide section 222, allowing the supplied airflow to be directly blown out of the wall-mounted air conditioner indoor unit from the outlet air vent. When the upper air outlet duct 210 and the lower air outlet duct 220 are in their closest positions, the movable air guide plate 310 is in a roughly horizontal position, with most of the lower surface of the movable air guide plate 310 being in contact with or close to the inner air guide section 222. "Close to" can be considered as being less than three millimeters from the upper surface of the diffuser section 221. Thus, the movable air guide plate 310 and the inner air guide section 222 can divide this portion of the air outlet cavity into upper and lower parts in the left-right and front-back directions. The rear edges of the movable air guide plate 310 and the inner air guide plate roughly correspond in height to the middle of the inner air outlet 151. The upper airflow entering the air outlet cavity from the inner air inlet 151 is discharged from the air diffuser 230 of the upper air outlet duct 210.

[0054] like Figure 3 , Figure 4 and Figures 7 to 9 As shown, optionally, the air outlet cavity and the heat exchange cavity 110 are separated by a partition 150. The partition 150 is provided with an internal air supply assembly, which forms an internal air supply port 151. The movable air guide plate 310 is configured to overlap the upper front edge of the internal air supply assembly.

[0055] This configuration ensures that, in direct-blowing mode, the airflow delivered into the air outlet cavity by the inner air outlet 151 is blocked by the movable air guide plate 310 and cannot flow upwards, so that as much of the airflow as possible is guided by the movable air guide plate 310 and blown out to the outer air outlet.

[0056] Specifically, in this embodiment, the rear edge of the movable air guide plate 310 overlaps with the front upper edge of the internal air supply assembly. Besides the internal air supply assembly including the air guide shroud 160 described later, the internal air supply outlet 151 can be directly provided on the partition plate 150. In direct-blowing mode, i.e., when the upper air outlet duct 210 and the lower air outlet duct 220 form an external air outlet, the rear edge of the movable air guide plate 310 can overlap with the upper edge of the internal air supply outlet 151. That is, if the internal air supply outlet 151 is circular, the rear edge of the movable air guide plate 310 is tangent to or slightly higher than the top of the internal air supply outlet 151. Of course, in direct-blowing mode, the movable air guide plate 310 does not necessarily have to overlap with the front upper edge of the internal air supply assembly; it can also swing to control the vertical airflow of the wall-mounted air conditioner indoor unit.

[0057] like Figure 4 As shown, optionally, when the upper air outlet duct 210 and the lower air outlet duct 220 form an external air outlet, the top rear edge of the lower air outlet duct 220 overlaps with the front lower edge of the internal air supply assembly.

[0058] This configuration ensures that, in direct-blowing mode, the airflow delivered into the air outlet cavity by the inner air outlet 151 is blocked by the top of the lower air outlet duct 220 and cannot enter the space below the top of the lower air outlet duct. As much as possible, the airflow is guided by the top of the lower air outlet duct and the movable air guide plate 310 and blown out of the air outlet.

[0059] Besides the internal air supply assembly including the air guide 160 described later, the internal air supply port 151 can be directly set on the middle partition 150. In the direct blowing mode, that is, when the upper air outlet 210 and the lower air outlet 220 form the external air outlet, the rear edge of the top of the lower air outlet plate can overlap the upper edge of the internal air supply port 151. That is, if the internal air supply port 151 is circular, the rear edge of the top of the lower air outlet plate is tangent to the bottom of the internal air supply port 151 or slightly lower than the top of the internal air supply port 151.

[0060] like Figures 3 to 5 and Figure 9 As shown, optionally, the internal air supply assembly includes a shroud 160, which is correspondingly disposed with the internal air supply port 151. The shroud 160 has an upper guide plate portion 161, which separates the space in the internal air supply assembly from the space above the upper guide plate portion 161. The upper guide plate portion 161 is configured to overlap the movable air guide plate 310.

[0061] By setting the upper guide plate 161 to block the upward movement of the airflow entering the air outlet cavity from the heat exchange cavity 110, it is not necessary to completely use the movable guide plate 310 to block the upward movement of the airflow. This shortens the width of the movable guide plate 310 and reduces its interference with the air conditioning fan 140.

[0062] When the upper air outlet duct 210 and the lower air outlet duct 220 are close together, the movable air guide plate 310 needs to be in a roughly horizontal state. When forming an outlet air vent, the movable air guide plate 310 needs to overlap the upper edge of the internal air supply assembly to prevent the airflow entering the outlet air cavity from the heat exchange cavity 110 from moving upward. Therefore, if the movable air guide plate 310 is set to rotate along a fixed axis, the rear edge of the movable air guide plate 310 will overlap with the internal air supply assembly, causing the movable air guide plate 310 to extend too far into the heat exchange cavity 110 in a roughly horizontal state. This would cause the air conditioning fan 140 to move backward to avoid the movable air guide plate 310, thereby increasing the size of the wall-mounted air conditioner indoor unit in the front-to-back direction. By setting an upper air guide plate, when the air conditioner is in direct blowing mode, the forward-extending upper air guide plate and the movable air guide plate 310 can jointly block the airflow from moving upward, reducing the width of the movable air guide plate 310 and thus reducing its interference with the air conditioning fan 140 when it is in a roughly horizontal state.

[0063] like Figures 3 to 5 and Figures 7 to 9As shown, optionally, the air deflector 160 has a lower air deflector portion 162, which separates the space in the internal air supply assembly from the space below the lower air deflector portion 162, and the lower air deflector portion 162 is configured to overlap the upper rear edge of the lower air outlet duct 220.

[0064] By setting the lower guide plate 162, the airflow entering the air outlet cavity from the heat exchange cavity 110 is blocked from moving into the lower air outlet duct 220 when the air outlet is formed. This eliminates the need to completely utilize the lower air outlet duct 220 to block the airflow from moving downward, thereby shortening the width of the top of the lower air outlet duct 220 and reducing its interference with the air conditioning fan 140.

[0065] When the lower air outlet duct 220 switches from being close to the upper air outlet duct 210 to being away from the upper air outlet duct 210 to form an external air vent, if the top of the lower air outlet duct 220 directly overlaps with the lower edge of the internal air supply vent 151, and the lower air outlet duct 220 rotates, then when the lower air outlet duct 220 approaches the upper air outlet duct 210 and closes the external air vent, the rear edge of the top of the lower air outlet duct 220 will be closer to the rear of the wall-mounted air conditioner indoor unit, i.e., closer to... Figure 3 As shown on the right, this would severely interfere with the layout of the air conditioner fan 140. Therefore, the air conditioner fan 140 would be positioned further back, thus increasing the size of the wall-mounted air conditioner indoor unit in the front-to-back direction. However, by installing a lower deflector, when the air conditioner is in direct-blowing mode, the forward-extending lower deflector and the top of the lower air outlet duct 220 can jointly block the downward movement of airflow, reducing the width of the top of the lower air outlet duct 220 and thus minimizing its interference with the air conditioner fan 140 when the outdoor air vent is closed.

[0066] Specifically, in this embodiment, the upper guide plate portion 161 and the lower guide plate portion 162 can together form a closed shape within a vertical plane, wherein the vertical plane is a vertical plane perpendicular to the front-to-back direction of the air conditioner. This closed shape can be in the shape of a track and field track or a waist-shaped hole, and the cross-sectional size within this vertical plane gradually decreases from back to front.

[0067] like Figures 3 to 5 and Figures 7 to 9 As shown, optionally, the internal air supply assembly also includes multiple diverter plates 170, with the multiple diverter plates 170 in each internal air supply assembly arranged in the left-right direction, and the left-right spacing of the multiple diverter plates 170 gradually increasing from back to front.

[0068] If the indoor unit of a wall-mounted air conditioner uses a fan with its rotation axis pointing forward and backward, the area directly opposite the air conditioner fan 140 cannot cover most of the length of the indoor unit in the left and right directions. The airflow speed is highest in the area directly opposite the air conditioner fan 140 in the left and right directions, decreasing with distance from the fan 140. By setting multiple air distribution plates 170 with gradually increasing spacing from back to front, the airflow from the air conditioner fan 140 can be guided, diffusing the airflow in the left and right directions. This increases the airflow speed and volume in areas farther from the air outlet than the fan 140, resulting in more uniform airflow from the outlet and increasing the air volume while maintaining a moderate airflow speed at the outlet.

[0069] In this embodiment, there are two air conditioning fans 140, arranged in a left-right direction. An internal air outlet 151 is provided on the partition plate 150 for each air conditioning fan 140, and four diverter plates 170 are provided for each internal air outlet 151. Of course, in other implementations, the number of diverter plates 170 for each internal air outlet 151 can be two, six, eight, or other even numbers. Alternatively, an odd number of diverter plates 170 can be provided for each internal air outlet 151, with one diverter plate 170 located in the middle of the left-right direction and extending in the front-back direction, while the remaining diverter plates 170 are symmetrically arranged around this diverter plate 170. Furthermore, an arc-shaped recess is provided at the front end of each diverter plate 170 to make way for the rear edge of the movable air guide plate 310.

[0070] like Figures 7 to 9 As shown, optionally, at least a portion of the splitter plate 170 includes a first sub-inclined portion 171, the angle between the first sub-inclined portion 171 and the left-right direction gradually decreasing from back to front.

[0071] This configuration allows the first sub-inclined section 171 to guide the airflow, causing the airflow to gradually flow in the left and right directions along the first sub-inclined section 171, thereby reducing abrupt changes in airflow direction and reducing energy loss when the airflow turns.

[0072] If the number of diverter plates 170 corresponding to each internal air outlet 151 is even, then all diverter plates 170 corresponding to that internal air outlet 151 include the aforementioned first sub-inclined portion 171. If the number of diverter plates 170 corresponding to each internal air outlet 151 is odd, then the diverter plate 170 located in the middle does not have the aforementioned first sub-inclined portion 171, while the remaining diverter plates 170 have the aforementioned sub-inclined portion.

[0073] like Figures 7 to 9 As shown, optionally, at least a portion of the splitter plate 170 includes a second sub-inclined portion 172, the angle between the second sub-inclined portion 172 and the left-right direction gradually increasing from back to front.

[0074] This configuration allows the airflow direction diffused by the first sub-inclined section 171 to be appropriately converged, thereby avoiding interference between the air outlets of multiple fan components. Simultaneously, it facilitates the conversion of the oblique velocity into a velocity perpendicular to the length of the wall-mounted air conditioner's indoor unit. After completing the task of airflow directional diffusion, this allows the outlet airflow to blow further forward, increasing the range of influence of the air outlet.

[0075] Specifically, in this embodiment, the airflow from the left and right inner air outlets 151 is guided by the guide ribs to disperse in the left and right directions. However, when the airflow from these two fan assemblies converges at the middle of the left and right directions of the wall-mounted air conditioner indoor unit, an impact occurs, resulting in reduced airflow velocity. Therefore, a second sub-inclined portion 172 is provided to appropriately converge the diffused airflow and direct it forward as much as possible, thereby reducing the airflow velocity loss caused by the airflow collision between the two fan assemblies. If it is necessary to further change the overall airflow direction, left and right sweeping blades can be provided on the lower surface of the movable air guide plate 310 to achieve left and right sweeping of the airflow.

[0076] Similar to the first sub-inclined portion 171, if the number of diverter plates 170 corresponding to each internal air outlet 151 is even, then all diverter plates 170 corresponding to that internal air outlet 151 include the aforementioned second sub-inclined portion 172. If the number of diverter plates 170 corresponding to each internal air outlet 151 is odd, then the diverter plate 170 located in the middle does not have the aforementioned second sub-inclined portion 172, while the remaining diverter plates 170 have the aforementioned sub-inclined portion.

[0077] The first sub-inclined section 171 and the second sub-inclined section 172 are arranged consecutively, meaning that along the flow direction guided by the second guide section, the angle between the second guide section and the front-back direction first increases and then decreases. Furthermore, the change in the angle between the second guide section and the front-back direction is gradual; that is, there is no abrupt change in direction on the left and right surfaces of the second guide section, allowing the airflow to smoothly and easily change angles, reducing the loss of gas energy.

[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 system includes a main housing (100) and an air outlet duct. A heat exchange chamber (110) is formed inside the main housing (100). The air outlet duct is located in front of the main housing (100) and forms an air outlet cavity inside the air outlet duct. The peripheral wall of the air outlet duct (200) is provided with a diffuser hole (230) that extends through the wall thickness direction. The heat exchange chamber (110) is connected to the air outlet cavity through an internal air inlet (151). The air outlet duct includes an upper air outlet duct (210) and a lower air outlet duct (220) arranged in the vertical direction. The upper air outlet duct (210) and the lower air outlet duct (220) are configured to be able to approach each other and move away from each other to form an external air outlet.

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The air outlet cavity is provided with a movable air guide plate (310), which is configured to guide the airflow forward and downward when the air outlet is formed.

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The air outlet cavity and the heat exchange cavity (110) are separated by a partition plate (150), the partition plate (150) is provided with an internal air supply assembly, the internal air supply assembly forms the internal air outlet (151), and the movable air guide plate (310) is configured to overlap the upper front edge of the internal air supply assembly.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, When the upper air outlet (210) and the lower air outlet (220) form the external air vent, the rear top edge of the lower air outlet (220) overlaps the lower front edge of the internal air supply assembly.

5. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The internal air supply assembly includes a flow guide shroud (160), which is correspondingly disposed with the internal air outlet (151). The flow guide shroud (160) has an upper flow guide plate portion (161), which separates the space in the internal air supply assembly from the space above the upper flow guide plate portion (161). The upper flow guide plate portion (161) is configured to overlap the movable air guide plate (310).

6. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, The internal air supply assembly includes a flow guide shroud (160), which is correspondingly disposed with the internal air outlet (151). The flow guide shroud (160) has a lower flow guide plate portion (162), which separates the space in the internal air supply assembly from the space below the lower flow guide plate portion (162). The lower flow guide plate portion (162) is configured to overlap the upper rear edge of the lower air outlet duct (220).

7. The wall-mounted air conditioner indoor unit according to claim 5 or 6, characterized in that, The internal air supply assembly also includes multiple diverter plates (170), and the multiple diverter plates (170) in each internal air supply assembly are arranged in the left-right direction, with the left-right spacing of the multiple diverter plates (170) gradually increasing from back to front.

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, At least a portion of the diverter plate (170) includes a first sub-inclined portion (171), the angle between the first sub-inclined portion (171) and the left-right direction gradually decreasing from back to front.

9. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, At least a portion of the diverter plate (170) includes a second sub-inclined portion (172), the angle between the second sub-inclined portion (172) and the left-right direction gradually increasing from back to front.

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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