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 fan unit volume air volume density low. Wall-mounted air conditioner indoor unit includes host module, host module includes base and fan assembly, base is equipped with partition, the top of partition is fan cavity, the lower portion of partition is flow guide cavity;Fan assembly is vertically installed in fan cavity;Partition is equipped with air supply outlet corresponding with the outlet of fan assembly;The front of flow guide cavity is equipped with front air outlet, and front air outlet is equipped with front air outlet, and front air outlet is configured to be able to be connected with flow guide cavity. It can improve the air volume of wall-mounted air conditioner indoor unit.

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] Most wall-mounted air conditioner indoor units use cross-flow fans as their power source for indoor air supply. Typically, the rotation axis of the cross-flow fan is in the left-right direction of the indoor unit. Air enters the indoor unit from the top air inlet, exchanges heat with the heat exchanger, and is then exhausted from the air outlet located at the bottom or lower front of the unit, thus regulating the indoor air. However, cross-flow fans are relatively long, have a smaller air volume, and insufficient air delivery per unit volume. Utility Model Content

[0003] 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 density per unit volume of existing wall-mounted air conditioner indoor units.

[0004] The first aspect of this utility model provides a wall-mounted air conditioner indoor unit, including a main unit module. The main unit module includes a base and a fan assembly. The base has a partition, with a fan cavity above the partition and a guide cavity below the partition. The fan assembly is vertically installed in the fan cavity. The partition has an air outlet corresponding to the outlet of the fan assembly. A front air outlet duct is provided in front of the guide cavity, and the front air outlet duct has a front air outlet. The front air outlet duct is configured to connect with the guide cavity.

[0005] The beneficial effects of this wall-mounted air conditioner indoor unit are:

[0006] By vertically installing the fan assembly in the fan cavity, a fan with a larger air volume per unit volume can be selected. A guide cavity is set below the fan cavity and connected to the front air outlet. The front air outlet can be opened using the larger area of ​​the front surface of the wall-mounted air conditioner indoor unit, so that a larger air volume can be smoothly discharged. This increases the air volume without significantly increasing the wind speed, thereby controlling the noise level.

[0007] In an optional technical solution, the fan assembly is a mixed-flow fan.

[0008] The use of mixed-flow fans results in a large air volume per unit volume, making it easy to arrange multiple fans in the left and right directions of the wall-mounted air conditioner indoor unit to improve the overall air volume of the indoor unit.

[0009] In an optional technical solution, the wall-mounted air conditioner indoor unit further includes an air duct switching mechanism, which includes an air duct switching plate; a lower air outlet is provided below the air guide cavity, and the air duct switching plate is movably arranged relative to the air guide cavity. The air duct switching plate is used to control at least one of the front air outlet and the lower air outlet to communicate with the air guide cavity.

[0010] By setting up an air duct switching mechanism to control the air duct switching plate to connect at least one of the front air outlet and the lower air outlet to the guide cavity, it is possible to use the lower air outlet, the front air outlet, or both simultaneously for air output. This expands the air outlet area of ​​the air conditioner without excessively increasing the airflow velocity, which could lead to noise problems. Especially when the indoor unit of a wall-mounted air conditioner uses a diffuser plate with a diffuser function, increasing the outlet area allows for an increase in the area of ​​the diffuser plate and the number of diffuser holes, which helps to improve the airflow in zero-wind mode.

[0011] In an optional technical solution, the air guide cavity is provided with a front air duct inlet, which is connected to the front air outlet; the air duct switching plate is configured to switch between a first position that blocks the front air duct inlet and a second position that blocks the lower air outlet.

[0012] This design not only shortens the airflow path when the air passes through the front air outlet, reducing energy loss, but also allows for control of the airflow at the front air outlet and the lower air outlet using the air duct switching plate. By reducing the total number of drive components that drive the air duct switching plate, it is easier to control the manufacturing cost of the wall-mounted air conditioner indoor unit.

[0013] In an optional technical solution, the air duct switching plate is rotatably arranged relative to the flow guide cavity, and the rotation axis of the air duct switching plate is located at the lower part or below the front air duct inlet.

[0014] This configuration allows the air duct switching plate to move by rotation, thereby reducing frictional resistance during its movement. Furthermore, by positioning the rotation axis of the air duct switching plate at this location, simply rotating the plate is sufficient to block the lower air outlet and the front air duct inlet, improving operational efficiency.

[0015] In an optional technical solution, the air duct switching plate includes a switching plate body. When the air duct switching plate is in the second position, the front surface of the rear air duct wall of the guide cavity, the upper surface of the switching plate body, and the rear surface of the lower air duct wall of the front outlet air duct smoothly transition in sequence.

[0016] This configuration allows the airflow from the rear of the fan assembly to be guided by the rear duct wall of the guide chamber, and then further guided by the upper surface of the switching plate and the rear surface of the lower duct wall of the front air outlet, before being blown into the front air outlet. The airflow is continuous and stable during the guidance process by the rear duct wall of the guide chamber, the switching plate, and the front air outlet, thereby reducing the consumption of airflow inside the air conditioner, improving air outlet efficiency, and reducing noise.

[0017] In an optional technical solution, the rear air duct wall of the air guiding cavity is provided with a first air guiding rib; the side of the air duct switching plate facing the front air outlet duct is provided with a second air guiding rib. Along the flow direction of the air outlet airflow of the fan assembly, at least a portion of the second air guiding rib gradually moves away from the axis of the fan assembly in the length direction of the wall-mounted air conditioner indoor unit, and at least a portion of the second air guiding rib is correspondingly arranged with the first air guiding rib.

[0018] By setting the first and second guide ribs, the air outlet at the rear of the fan assembly can be guided to deviate from the axis of the fan assembly and disperse along the left and right directions of the wall-mounted air conditioner indoor unit. This helps to make full use of the length of the wall-mounted air conditioner indoor unit and improve the uniformity of the air outlet along the length of the wall-mounted air conditioner indoor unit.

[0019] In an optional technical solution, the wall-mounted air conditioner indoor unit further includes a lower frame, which is connected to the bottom of the main unit module and located below the main unit module. The lower frame and the main unit module form a display cavity. The lower frame is provided with a lower air outlet opposite to the lower air outlet, and the display cavity is provided with an air supply duct connecting the lower air outlet and the lower air supply duct.

[0020] By installing an air supply duct between the lower air outlet of the main unit module and the air inlet of the lower frame, the air outlet from the lower air outlet can be directly guided to the air inlet through the air supply duct. Therefore, the air outlet from the lower air outlet will not interfere with the lower frame, nor will it affect the exhibits in the display cavity, thus improving airflow efficiency. Furthermore, by installing the air supply duct, the length of the section where the pressure upstream of the airflow direction is greater than the pressure downstream can be increased. This extends the acceleration phase of the airflow, which is beneficial for increasing airflow velocity. It is particularly beneficial for the downward movement of hot air blown out by the air conditioner in heating mode, thereby improving the temperature uniformity of the indoor space and enhancing the user experience.

[0021] In an optional technical solution, the air supply duct includes a cylinder body, blades, and an air supply duct support. The cylinder body is fixedly connected to the air supply duct support through the blades. The air supply duct support is rotatably supported by a fixed support. The fixed support is fixedly arranged relative to the lower frame and concentrically arranged with the center of the lower air outlet. The blades are configured to drive the cylinder body to rotate under the action of the airflow or be driven to rotate by the cylinder body.

[0022] By setting the air supply duct to rotate relative to the main unit module, the airflow velocity of the fan assembly in the main unit module can be linked to the rotational speed of the air supply duct. The higher the airflow velocity or volume, the faster the air supply duct rotates, thus visually displaying the airflow speed. The duct body is supported by an air supply support unit, which is concentrically positioned with the lower air outlet. Although friction may occur when the fixed support unit rotates to support the air supply duct, the distance between the friction point and the duct's rotation axis results in a small lever arm and low frictional torque. This helps reduce the resistance to rotation, whether the air supply duct is actively driven or rotated by the airflow from the lower air outlet. By incorporating blades, the force of the airflow acting on the blades can be converted into torque that drives the air supply duct to rotate, or the rotation of the air supply duct can be used to drive the blades to exert force on the airflow, thereby enhancing the airflow.

[0023] The second objective of this utility model is to provide an air conditioner that solves the technical problem of low air volume density per unit volume of the indoor unit fan of a wall-mounted air conditioner.

[0024] 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.

[0025] 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

[0026] 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.

[0027] Figure 1 This is a three-dimensional sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model.

[0028] Figure 2 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, in which the air duct switching plate is in the first position.

[0029] 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. At this time, the air duct switching plate is in the second position, and the air outlet structure is omitted in the figure.

[0030] Figure 4 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. At this time, the air duct switching plate is in the second position, and the cutting position is offset from the fan assembly.

[0031] Figure 5 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. At this time, the air duct switching plate is between the first position and the second position. The air supply duct and the fixed support are omitted in the figure.

[0032] Figure 6 This is a schematic diagram of the air supply duct in the indoor unit of a wall-mounted air conditioner provided in Embodiment 1 of this utility model.

[0033] Figure 7 This is a schematic diagram of the air supply duct in the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model, viewed from another direction.

[0034] Figure 8 This is a three-dimensional sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 2 of this utility model.

[0035] Figure 9 This is a three-dimensional sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 2 of this utility model. The air supply duct is omitted in the figure.

[0036] Figure 10 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 3 of this utility model.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100-Main unit module; 110-Lower air outlet; 120-Fan cavity; 121-Air inlet; 122-Heat exchanger; 123-Fan assembly; 124-Separator; 125-Air outlet; 130-Front air duct; 131-Front air duct inlet; 132-Grate; 133-Lower air duct wall; 134-Front air outlet; 135-Second partition; 140-Guide cavity; 141-Rear air duct wall; 143-First guide rib; 150-Air duct switching mechanism; 151-Air duct switching plate; 152-Switching plate body; 153-Second guide rib; 154-Air duct switching motor; 160-Base; 170-Upper support; 171-Second spoke; 172-Second support protrusion; 180-Air duct drive motor; 190-Air outlet structure;

[0039] 200 - Lower frame; 210 - Base plate; 211 - Lower air outlet; 220 - Lower support; 221 - First spoke; 222 - First limiting hole;

[0040] 300 - Air supply duct; 310 - Duct body; 320 - Air supply duct support; 321 - First support protrusion; 322 - Second limiting hole; 330 - Blade;

[0041] 400-Transparent Tube;

[0042] 500 - Illuminating components. Detailed Implementation

[0043] 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.

[0044] 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.

[0045] Example 1:

[0046] Figure 1 This is a three-dimensional sectional view of the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model. Figure 2 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. Figure 3 This is a schematic diagram of the structure of the indoor unit of the wall-mounted air conditioner provided in Embodiment 1 of this utility model. The air outlet structure is omitted in the diagram. Figures 1-3 As shown, the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model includes a main unit module 100. The main unit module 100 includes a base 160 and a fan assembly 123. The base 160 is provided with a partition 124. The upper part of the partition 124 is a fan cavity 120, and the lower part of the partition 124 is a guide cavity 140. The fan assembly 123 is vertically installed in the fan cavity 120. The partition 124 has an air outlet 125 corresponding to the outlet of the fan assembly 123. A front air outlet duct 130 is provided in front of the guide cavity 140. The front air outlet duct 130 has a front air outlet 134 and is configured to be connected to the guide cavity 140.

[0047] By vertically installing the fan assembly 123 into the fan cavity 120, a fan with a larger air volume per unit volume can be selected. A guide cavity 140 is set below the fan cavity 120 and connected to the front air outlet 134. The front air outlet 134 can be opened using the larger area of ​​the front surface of the wall-mounted air conditioner indoor unit so that a larger air volume can be smoothly discharged. This increases the air volume without significantly increasing the wind speed, thereby controlling the noise level.

[0048] Specifically, in this embodiment, the wall-mounted air conditioner indoor unit includes a base 160, a portion of which forms a partition 124. The partition 124 extends generally along the left-right and front-back directions of the wall-mounted air conditioner indoor unit, although it is possible that the partition 124 may also include a region extending in the vertical direction. The partition 124 includes a first partition, which divides the interior of the wall-mounted air conditioner indoor unit into a fan chamber 120 and a guide chamber 140. The fan chamber 120 is located above the first partition. In addition to the fan assembly 123, the fan chamber 120 also contains a heat exchanger 122, which can be an inverted V-shaped heat exchanger. The top of the fan chamber 120 also has an air inlet 121. A generally circular air outlet 125 is provided on the first partition, and the center of the air outlet 125 is approximately concentric with the center of the fan assembly 123.

[0049] In addition, the wall-mounted air conditioner indoor unit is also provided with a second partition 135, which extends in the left-right direction and approximately the up-down direction, separating the front air outlet duct 130 located at the front and the fan cavity 120 located behind it. The front air outlet 134 can occupy more than 2 / 3 of the front surface area of ​​the wall-mounted air conditioner indoor unit, thereby increasing the air outlet area of ​​the wall-mounted air conditioner indoor unit. Furthermore, a grille 132 can be provided at the front air outlet 134 to support the corresponding air outlet structure 190. Specifically, the air outlet structure 190 can be a diffuser with zero-wind-feel air outlet function (not shown in the figure), or a sweeping mechanism with up-and-down sweeping blades 330 and / or left-and-right sweeping blades 330 (not shown in the figure).

[0050] Air enters the fan chamber 120 through the air inlet 121, exchanges heat with the heat exchanger 122, is then drawn by the fan assembly 123 and enters the guide chamber 140 through the air outlet 125 from the outlet of the fan assembly 123. The airflow can be guided to the front air outlet 130 in the guide chamber 140 and sent out through the front air outlet 134.

[0051] It should be noted that the fan assembly 123 is installed in the fan cavity 120 with its axis vertical. However, it is not required that the axis of the fan assembly 123 must be precisely vertical. For example, if the axis of the fan assembly 123 is within 15° of the vertical line, it can be considered that the axis of the fan assembly 123 is vertical.

[0052] like Figures 1 to 3 As shown, optionally, the fan assembly 123 may be a mixed-flow fan.

[0053] The use of mixed-flow fans results in a large air volume per unit volume, making it easy to arrange multiple fans in the left and right directions of the wall-mounted air conditioner indoor unit to improve the overall air volume of the indoor unit.

[0054] Specifically, in this embodiment, two mixed-flow fans can be arranged along the length of the air conditioner, and two air outlets 125 are provided on the first partition, with each air outlet 125 corresponding to the outlet of one mixed-flow fan. Of course, in another implementation, the fan assembly 123 can also be a vortex fan.

[0055] Figure 4 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model. Figure 5 This is a cross-sectional view of the indoor unit of a wall-mounted air conditioner provided in Embodiment 1 of this utility model. Figures 1 to 5 As shown, optionally, the wall-mounted air conditioner indoor unit also includes a duct switching mechanism 150, which includes a duct switching plate 151; a lower air outlet 110 is provided below the air guide cavity 140, and the duct switching plate 151 is movably arranged relative to the air guide cavity 140. The duct switching plate 151 is used to control at least one of the front air outlet 130 and the lower air outlet 110 to communicate with the air guide cavity 140.

[0056] By setting up an air duct switching mechanism 150 to control the air duct switching plate 151 to connect at least one of the front air outlet 130 and the lower air outlet 110 to the guide cavity 140, it is possible to use the lower air outlet 110, the front air outlet 134, or both the lower air outlet 110 and the front air outlet 130 for air discharge, thereby expanding the air outlet area of ​​the air conditioner without excessively increasing the air outlet speed and causing noise problems. Especially when the indoor unit of the wall-mounted air conditioner uses a diffuser plate with a diffuser function, increasing the outlet area can increase the area of ​​the diffuser plate and the number of diffuser holes on the diffuser plate, which is beneficial to improving the air volume in zero wind mode.

[0057] In this embodiment, the air duct switching mechanism 150 includes an air duct switching motor 154, which is connected to the air duct switching plate 151 in a transmission manner.

[0058] like Figures 1 to 5 As shown, optionally, the air guide cavity 140 is provided with a front air duct inlet 131, which is connected to the front air outlet 130; the air duct switching plate 151 is configured to switch between a first position that blocks the front air duct inlet 131 and a second position that blocks the lower air outlet 110.

[0059] This configuration not only shortens the airflow path when the air passes through the front air outlet 130, reducing energy loss, but also allows for control of the airflow from the front air outlet 131 and the lower air outlet 110 using the air duct switching plate 151. By reducing the total number of drive components for the air duct switching plate 151, the manufacturing cost of the wall-mounted air conditioner indoor unit can be controlled.

[0060] Specifically, in this embodiment, the front air duct inlet 131 can extend along the length direction of the wall-mounted air conditioner indoor unit, i.e., the left-right direction, and its length can correspond to the guide cavity 140 or the overall length of the guide cavity 140. In this embodiment, the lower air outlet 110 can be a circular air outlet, corresponding to each fan assembly 123 in the left-right direction and the front-back direction of the wall-mounted air conditioner indoor unit. The lower opening of the guide cavity 140 is correspondingly arranged with the air duct switching plate 151. When the air duct switching plate 151 is in the second position, the air duct switching plate 151 blocks the lower opening of the guide cavity 140, thereby also blocking the lower air outlet 110.

[0061] Of course, in addition to the first position and the second position, the air duct switching plate 151 can move between the first position and the second position. At this time, the airflow of the fan assembly 123 can achieve the following: part of the air is discharged through the front air outlet 134 through the front air outlet 130, while the other part of the air is discharged through the lower air outlet 110 to achieve lower air outlet.

[0062] Specifically, in this embodiment, the air duct switching motor 154 drives the air duct switching plate 151 to rotate through gear meshing.

[0063] like Figure 4 and Figure 5 As shown, optionally, the air duct switching plate 151 is rotatably arranged relative to the flow guide cavity 140, and the rotation axis of the air duct switching plate 151 is located at the lower part or below the front air duct inlet 131.

[0064] This configuration allows the air duct switching plate 151 to move by rotation, thereby reducing the frictional resistance during its movement. Furthermore, by setting the rotation axis of the air duct switching plate 151 at this location, simply rotating the plate 151 is sufficient to block the lower air outlet 110 and the front air duct inlet 131, thus improving movement efficiency.

[0065] Specifically, in this embodiment, the rotation axis of the air duct switching plate 151 is located at the lower opening of the guide cavity 140, and more specifically, at the front end of the lower opening. This allows the air duct switching plate 151 to switch between a first position blocking the front air duct inlet 131 and a second position blocking the lower air outlet 110 by swinging. Of course, the air duct switching plate 151 can rotate to an angle between the first and second positions. At this time, the airflow from the fan assembly 123 can be: partly flowing from the side of the air duct switching plate 151 facing the front air outlet 130 and exiting through the front air outlet 134, and the other part flowing from the side of the air duct switching plate 151 facing the lower air outlet 110 and exiting through the lower air outlet 110 to achieve downward airflow.

[0066] In another implementation, the movement of the duct switching plate 151 relative to the guide cavity 140 can also be achieved by sliding the duct switching plate 151 on a preset track. For example, an arc-shaped rack can be provided on the fan switching plate. The arc-shaped rack is circular, with the teeth of the rack facing the center of the arc. A motor drives the arc-shaped rack through the meshing of gears, thereby driving the duct switching plate 151 to move along the arc. The duct switching plate 151 can be slidably connected to the left and right side walls of the air conditioner, for example, through a sliding groove, or it can be connected through rollers. When the duct switching plate 151 moves to the front of the guide cavity 140, that is, when it moves to the first position, the duct switching plate 151 blocks the front air duct inlet 131 and exposes the lower air outlet, so that the airflow does not exit from the lower air outlet 110. When the air duct switching plate 151 moves to below the guide cavity 140, that is, to the second position, the air duct switching plate 151 blocks the lower air outlet 110 and exposes the front air duct inlet 131, thereby allowing air to exit from the front air outlet 130. Of course, the air duct switching plate can move between the first and second positions, partially blocking the front air duct inlet 131 and also partially blocking the lower air outlet 110. Therefore, the airflow will exit through both the front air outlet 130 and the lower air outlet 110. At this time, the ratio of the front airflow from the front air outlet 130 to the lower airflow from the lower air outlet 110 can be controlled.

[0067] like Figure 4 As shown, optionally, the air duct switching plate 151 includes a switching plate body 152. When the air duct switching plate 151 is in the second position, the front surface of the rear air duct wall 141 of the guide cavity 140, the upper surface of the switching plate body 152, and the rear surface of the lower air duct wall 133 of the front outlet air duct 130 smoothly transition in sequence.

[0068] This configuration allows the air outlet at the rear of the fan assembly 123 to be guided by the rear air duct wall 141 of the guide cavity 140, and then further guided by the upper surface of the switching plate 152 and the rear surface of the lower air duct wall 133 of the front air outlet 130 before being blown into the front air duct inlet 131. The airflow is continuous and stable during the guidance of the rear air duct wall 141 of the guide cavity 140, the switching plate 152, and the front air outlet 130, thereby reducing the consumption of airflow inside the air conditioner, improving air outlet efficiency, and reducing noise.

[0069] Specifically, the rear duct wall 141 of the guide cavity 140 has an arc-shaped protrusion that bulges rearward, meaning that as the height decreases, the angle between the rear of the guide cavity 140 and the horizontal becomes smaller. The switching plate 152 is also arc-shaped, with its opening facing upwards. After the airflow passes through the switching plate 152, the airflow direction smoothly changes from forward and downward to forward and upward. When the switching plate 152 is in the second position, the rear bottom of the guide cavity 140 and the rear of the upper surface of the switching plate 152 are at the same angle, forming a consistent continuous arc. The switching plate 152 has a downward-convex arc shape.

[0070] Specifically, the lower air duct wall 133 of the front air outlet duct 130 has an arc-shaped protrusion that protrudes forward and downward. That is, as the height increases, the angle between the lower arm of the front air outlet duct 130 and the horizontal becomes larger and larger. The front end of the upper surface of the switching plate 152 is at the same angle as the rear end of the lower air duct wall 133 of the front air outlet duct 130.

[0071] like Figure 3 As shown, optionally, the rear air duct wall 141 of the air guide cavity 140 is provided with a first air guide rib 143; the side of the air duct switching plate 151 facing the front air outlet duct 130 is provided with a second air guide rib 153. Along the flow direction of the air outlet airflow of the fan assembly 123, at least a portion of the second air guide rib 153 gradually moves away from the axis of the fan assembly 123 in the length direction of the wall-mounted air conditioner indoor unit, and at least a portion of the second air guide rib 153 is correspondingly arranged with the first air guide rib 143.

[0072] By setting the first guide rib 143 and the second guide rib 153, the air outlet at the rear of the fan assembly 123 can be guided to deviate from the axis of the fan assembly 123 and disperse along the left and right directions of the wall-mounted air conditioner indoor unit, so as to make full use of the length of the wall-mounted air conditioner indoor unit and improve the uniformity of the air outlet along the length of the wall-mounted air conditioner indoor unit.

[0073] Specifically, in this embodiment, the fan assembly 123 uses two mixed-flow fans arranged along the length of the wall-mounted air conditioner indoor unit. On the rear duct wall 141 and duct switching plate 151 of the guide cavity 140, a first guide rib 143 and a second guide rib 153 are provided corresponding to the two mixed-flow fans and the air outlet 125. The extension direction of the first guide rib 143 can be perpendicular to the left-right direction of the wall-mounted air conditioner indoor unit, or it can be set to gradually increase in spacing from top to bottom. Along the airflow direction on the duct switching plate 151, the angle between the extension direction of the second guide rib 153 and the left-right direction gradually decreases, so as to gradually diffuse the airflow direction to the left and right sides, thereby allowing the front air outlet 134 to discharge air more evenly. For example, in this embodiment, if six first guide ribs 143 are provided for each mixed-flow fan, then six second guide ribs 153 are also provided, corresponding one-to-one with the first guide ribs 143. If the first guide rib 143 is arranged in parallel, the second guide rib 153 extends in a direction perpendicular to the left and right directions at its rear end corresponding to the first guide rib 143.

[0074] like Figures 1 to 5 As shown, optionally, the wall-mounted air conditioner indoor unit also includes a lower frame 200, which is connected to the bottom of the main unit module 100 and located below the main unit module 100. The lower frame 200 and the main unit module 100 form a display cavity. The lower frame 200 is provided with a lower air outlet 211 opposite to the lower air outlet 110, and the display cavity is provided with an air supply duct 300 that connects the lower air outlet 110 and the lower air outlet 211.

[0075] By installing an air supply duct 300 between the lower air outlet 110 of the main unit module 100 and the lower air supply outlet 211 of the lower frame 200, the air outlet 110 can be directly guided to the lower air supply outlet 211 through the air supply duct 300. Therefore, the air outlet 110 will not interfere with the lower frame 200, nor will it affect the exhibits in the display cavity, thus improving air outlet efficiency. Furthermore, by installing the air supply duct 300, the length of the section where the pressure upstream of the air outlet direction is greater than the pressure downstream can be increased. This extends the acceleration phase of the air outlet, which is beneficial for increasing the air outlet speed. It is particularly beneficial for the downward movement of hot air blown out by the air conditioner in heating mode, thereby improving the temperature uniformity of the indoor space and enhancing the user experience.

[0076] In this embodiment, the left and right side walls of the main unit module 100 extend downwards naturally and are fixedly connected to the base plate 210. The side walls extending downwards from the bottom of the main unit module 100 and the base plate 210 together constitute the lower frame 200. Two lower air inlets 211 are provided on the base plate 210, corresponding to the lower air outlet 110. The positions of the lower air inlets 211 correspond to the lower air outlets 110.

[0077] Figure 6 and Figure 7 This is a schematic diagram of the air supply duct in the indoor unit of a wall-mounted air conditioner provided in Embodiment 1 of this utility model, viewed from different directions. Figure 6 and Figure 7 As shown, optionally, the air supply duct 300 includes a duct body 310, blades 330 and an air supply duct support 320. The duct body 310 is fixedly connected to the air supply duct support 320 through the blades 330. The air supply duct support 320 is rotatably supported on a fixed support. The fixed support is fixedly arranged relative to the lower frame 200 and concentrically arranged with the center of the lower air outlet 211. The blades 330 are configured to drive the duct body 310 to rotate under the action of the airflow or be driven to rotate by the duct body 310.

[0078] By setting the air supply duct 300 to rotate relative to the main unit module 100, the air outlet speed of the fan assembly 123 in the main unit module 100 can be correlated with the rotation speed of the air supply duct 300. The greater the air outlet speed or air volume, the faster the air supply duct 300 rotates, thus allowing the air speed to be displayed visually. The duct body 310 is supported by the air supply duct support 320, and the air supply duct support 320 is concentrically positioned with the center of the lower air outlet 211. Although friction may be generated when the fixed support rotates to support the air supply duct support 320, the distance between the location of the friction force and the rotation axis of the duct body 310 is relatively small, resulting in a small frictional arm and a small frictional torque. This helps reduce the resistance to the rotation of the air supply duct 300, whether it is actively driven or rotated by the air outlet 110. By setting the blades 330, the force of the airflow on the blades 330 can be converted into torque that drives the air supply duct 300 to rotate, or the rotation of the air supply duct 300 can be used to drive the blades 330 to apply force to the airflow to enhance the airflow.

[0079] Specifically, a cylindrical helical gear-like shape can be provided on the outer side of the cylinder 310. The faster the wind speed, the faster the outer circumference of the cylindrical helical gear-like shape of the cylinder 310 rotates. Users can qualitatively determine the wind speed by observing the rotational speed of the outer circumference of the cylinder 310. In this embodiment, the duct support 320 can be fixedly connected to the cylinder 310 by at least two evenly distributed blades 330. More specifically, in this embodiment, it can be connected by five blades 330. The root of each blade 330 is fixedly connected to the duct support 320, while the tip of each blade 330 is fixedly connected to the inner circumference of the cylinder 310. More specifically, the cylinder 310, blades 330, and duct support 320 can be integrally formed. Each blade 330 intersects the axial, radial, and tangential directions of the air supply duct 300 to better convert the motion of the airflow into the rotation of the air supply duct 300.

[0080] like Figure 1 , Figure 2 and Figure 4 , Figure 5 As shown, optionally, the fixed support part includes an upper support part 170 and a lower support part 220. The upper support part 170 is rotatably engaged with the top end of the air duct support part 320, and the upper support part 170 is located at the center of the lower air outlet 110. The lower support part 220 is rotatably engaged with the bottom end of the air duct support part 320, and the lower support part 220 is located at the center of the lower air outlet 211.

[0081] By setting the upper support part 170 and the lower support part 220, the upper and lower ends of the air duct support part 320 can be limited simultaneously. Even if the rotation of the air duct 300 encounters an unbalanced force, the upper support part 170 and the lower support part 220 are relatively far apart, and the upper support part 170 and the lower support part 220 only need to generate a small force to balance the external interference force.

[0082] Of course, in this embodiment, the fixed support includes an upper support 170 that rotatably engages with the top of the air duct support 320 and a lower support 220 that rotatably engages with the bottom of the air duct support 320, so as to provide support for the air duct 300 from the top and bottom. Alternatively, in another implementation, if the air duct 300 is driven by a motor, it can be supported only at the top of the air duct support 320 by the upper support 170 or only at the bottom of the air duct support 320 by the lower support 220. The other end of the air duct support 320 is radially limited by its fixed connection to the output shaft of the motor.

[0083] like Figure 1 , Figure 2 and Figure 4 , Figure 5 As shown, optionally, the lower support 220 is fixedly connected to the lower air outlet 211 via the first spoke 221; the upper support 170 is fixedly connected to the lower air outlet 110 via the second spoke 171.

[0084] Of the lower support part 220 and the air duct support part 320, one is provided with a first support protrusion 321 and the other is provided with a first limiting hole 222. The first support protrusion 321 and the first limiting hole 222 are rotatably connected.

[0085] Of the upper support part 170 and the air duct support part 320, one is provided with a second support protrusion 172 and the other is provided with a second limiting hole 322. The second support protrusion 172 and the second limiting hole 322 are rotatably connected.

[0086] By setting the first spoke 221 to fix the lower support 220 to the lower air outlet 211, and using the second spoke 171 to connect the upper support 170 and the lower support 220, not only can the upper support 170 and the lower support 220 be supported, but the upper and lower ends of the air duct support 320 can also be supported, ensuring the stability of the rotation axis of the air duct 300. Moreover, the cooperation between the first support protrusion 321 and the first inner limiting hole can prevent radial movement between the bottom of the lower support 220 and the air duct support 320. Similarly, the cooperation between the second support protrusion 172 and the second inner limiting hole can prevent radial movement between the top of the upper support 170 and the air duct support 320.

[0087] Specifically, in this embodiment, the lower support portion 220 is fixedly connected to the lower air outlet 211 via four first spokes 221. The four spokes are evenly distributed along the circumference of the lower support portion 220, or more specifically, they can be distributed in the front, rear, left, and right directions of the lower support portion 220. The upper support portion 170 is fixedly connected to the lower air outlet 110 via four second spokes 171. The four spokes are evenly distributed along the circumference of the lower support portion 220, or more specifically, they can be distributed in the front, rear, left, and right directions of the lower support portion 220. That is, the first spokes 221 connected to the lower support portion 220 and the second spokes 171 connected to the upper support portion 170 are correspondingly arranged in the vertical direction.

[0088] In this embodiment, the first support protrusion 321 is located at the bottom of the duct support portion 320 and protrudes downward, while the first limiting hole 222 is located in the lower support portion 220 and is recessed downward. The second support protrusion 172 is located at the bottom of the upper support portion 170 and protrudes downward, while the second limiting hole 322 is located at the top of the duct support portion 320 and is recessed downward. In this embodiment, the bottom of the first limiting hole 222 can be engaged with the bottom surface of the periphery of the first support protrusion 321 to restrict the vertical position of the duct support portion 320 from bottom to top. The extreme position of the upward movement of the duct support portion 320 can be determined by the engagement of the top surface of the solid surrounding the second limiting hole 322 at the top of the duct support portion 320 and the bottom surface of the solid surrounding the second support protrusion 172.

[0089] Of course, in another implementation, the positions of the first limiting hole 222 and the first supporting protrusion 321 can be interchanged, and similarly the positions of the second limiting hole 322 and the second supporting protrusion 172 can also be interchanged.

[0090] Optionally, a transparent tube 400 is provided outside the air supply duct 300, and at least one of the bottom of the main unit module 100 and the lower frame 200 is fixedly connected to the transparent tube 400.

[0091] By setting a fixed transparent tube 400, the air supply tube 300 can be shielded, which protects the air supply tube 300 from accidental contact with the user and prevents injury from being pinched or hit. It also prevents dust from accumulating on the surface of the air supply tube 300. If dust accumulates on the fixed transparent tube 400, it can be removed simply by wiping.

[0092] Specifically, in this embodiment, the transparent tube 400 can be made of acrylic material, and the transparent tube 400 can be installed at the bottom of the main module 100 or the lower frame 200 by means of threaded connection, buckle, etc.

[0093] Optionally, a light-emitting element (not shown in the figure) is fixedly installed on the transparent tube 400.

[0094] By placing the light-emitting element on the transparent inner cylinder and keeping it fixed without rotating, it is easy to connect the light strip to the power supply.

[0095] Specifically, in this embodiment, the light-emitting element is a ring-shaped light strip, which can be fixed to the upper, middle, or lower part of the inner circumference of the transparent inner cylinder. Of course, in another implementation, the light strip can also be fixed to the top or bottom wall of the annular cavity space between the air supply duct 300 and the transparent cylinder 400, that is, fixed to the lower surface of the bottom of the fan module or fixed to the upper surface of the base plate 210, and located between the air supply duct 300 and the transparent cylinder 400.

[0096] Example 2:

[0097] Figure 8 and Figure 9 These are perspective sectional views of the wall-mounted air conditioner indoor unit provided in Embodiment 2 of this utility model, with and without the air supply duct, respectively. Figure 8 and Figure 9 As shown, the difference between this embodiment and Embodiment 1 is that the wall-mounted air conditioner indoor unit also includes a duct drive motor 180, which is installed on either the bottom of the main unit module 100 or the lower frame 200, and is connected to the air supply duct 300 for transmission.

[0098] By setting the air duct drive motor 180, the air supply duct 300 can be actively driven to rotate, thereby reducing the energy loss of the airflow caused by driving the air supply duct 300 to rotate, which helps to ensure the downward movement distance of the airflow.

[0099] Specifically, in this embodiment, the duct drive motor 180 is connected to the lower air outlet 110 via multiple second spokes 171, meaning the duct drive motor 180 is installed at the bottom of the main unit module 100. The transmission part of the output shaft of the duct drive motor 180 can have a non-circular cross-section. Correspondingly, the hole at the top of the duct support 320 is also non-circular, matching the shape and size of the transmission part of the output shaft, allowing torque to be transmitted between them. Alternatively, the transmission part of the output shaft can also have a circular cross-section, but sufficient friction can be generated between the hole at the top of the duct support 320 and the transmission part of the output shaft of the duct drive motor 180 to drive the air delivery duct 300 to rotate.

[0100] Of course, in this embodiment, since the top of the duct support 320 is connected to the duct drive motor 180, the bottom of the duct support 320 can be rotatably connected to the first support. In another implementation, the duct drive motor 180 can also be mounted on the lower frame 200, with the transmission part of the output shaft of the duct drive motor 180 connected to the bottom of the duct support 320 to drive the air delivery duct 300 to rotate. The second support then limits the top of the duct support 320.

[0101] Example 3:

[0102] Figure 10 This is a cross-sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 3 of this utility model. Figure 10 As shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that at least one of the bottom of the host module 100 and the lower frame 200 is fixedly connected to the air supply duct 300, and the air supply duct 300 is provided with a light-emitting element 500.

[0103] The air supply duct 300 is fixedly connected to at least one of the bottom of the main unit module 100 and the lower frame 200, so that no wear occurs between the air supply duct 300 and the connecting parts, thereby improving the service life of the wall-mounted air conditioner indoor unit.

[0104] Specifically, in this embodiment, the air supply duct 300 can be fixedly connected to the bottom of the main unit module 100, for example, by screws or by snap-fit. Since there is no need to support the air supply duct 300 in the middle, the air supply duct 300 may not have an internal air supply duct support 320, nor may it have blades 330 for connecting the air supply duct support 320 and the duct body 310. Furthermore, there is no need to provide fixed supports on the bottom of the main unit module 100 and the lower frame 200. Of course, in another implementation, the air supply duct 300 can also be fixedly connected to the lower frame 200.

[0105] Example 4:

[0106] Embodiment 4 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0111] 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.

[0112] 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 unit module (100), which includes a base (160) and a fan assembly (123). The base (160) has a partition (124), with a fan chamber (120) above the partition (124) and a flow guide chamber (140) below the partition (124). The fan assembly (123) is vertically installed in the fan chamber (120). The partition (124) has an air outlet (125) corresponding to the outlet of the fan assembly (123). A front air outlet duct (130) is provided in front of the flow guide chamber (140), and the front air outlet duct (130) has a front air outlet (134). The front air outlet duct (130) is configured to be connected to the flow guide chamber (140).

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The fan assembly (123) is a mixed-flow fan.

3. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The wall-mounted air conditioner indoor unit also includes a duct switching mechanism (150), which includes a duct switching plate (151); a lower air outlet (110) is provided below the air guide cavity (140), and the duct switching plate (151) is movably arranged relative to the air guide cavity (140). The duct switching plate (151) is used to control at least one of the front air outlet duct (130) and the lower air outlet (110) to communicate with the air guide cavity (140).

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The air guide cavity (140) is provided with a front air duct inlet (131), which is connected to the front air outlet (130); the air duct switching plate (151) is configured to switch between a first position that blocks the front air duct inlet (131) and a second position that blocks the lower air outlet (110).

5. The wall-mounted air conditioner indoor unit according to claim 4, characterized in that, The air duct switching plate (151) is rotatably arranged relative to the flow guide cavity (140), and the rotation axis of the air duct switching plate (151) is located at the lower part or below the front air duct inlet (131).

6. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The air duct switching plate (151) includes a switching plate body (152). When the air duct switching plate (151) is in the second position, the front surface of the rear air duct wall (141) of the guide cavity (140), the upper surface of the switching plate body (152), and the rear surface of the lower air duct wall (133) of the front outlet air duct (130) smoothly transition in sequence.

7. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The rear air duct wall (141) of the air guide cavity (140) is provided with a first air guide rib (143); the side of the air duct switching plate (151) facing the front air outlet duct (130) is provided with a second air guide rib (153). Along the flow direction of the air outlet of the fan assembly (123), at least a portion of the second air guide rib (153) gradually moves away from the axis of the fan assembly (123) in the length direction of the wall-mounted air conditioner indoor unit, and at least a portion of the second air guide rib (153) is correspondingly arranged with the first air guide rib (143).

8. The wall-mounted air conditioner indoor unit according to any one of claims 3-7, characterized in that, The wall-mounted air conditioner indoor unit also includes a lower frame (200), which is connected to the bottom of the main unit module (100) and located below the main unit module (100). The lower frame (200) and the main unit module (100) form a display cavity. The lower frame (200) is provided with a lower air outlet (211) opposite to the lower air outlet (110). The display cavity is provided with an air supply duct (300) connecting the lower air outlet (110) and the lower air outlet (211).

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that, The air supply duct (300) includes a duct body (310), blades (330) and an air supply duct support (320). The duct body (310) is fixedly connected to the air supply duct support (320) through the blades (330). The air supply duct support (320) is rotatably supported on a fixed support. The fixed support is fixedly arranged relative to the lower frame (200) and concentrically arranged with the center of the lower air outlet (211). The blades (330) are configured to drive the duct body (310) to rotate under the action of the airflow or be driven to rotate by the duct body (310).

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

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