Wall-mounted air conditioner indoor unit and air conditioner

Abstract

The utility model provides a kind of wall-mounted air conditioner indoor unit and air conditioner, it is related to air conditioner technical field to solve the problem of wall-mounted air conditioner indoor unit zero wind mode air output little.Wall-mounted air conditioner indoor unit includes mainframe shell, air outlet barrel and air outlet opening and closing mechanism, the peripheral wall of air outlet barrel is equipped with the air hole of through, fan cavity in mainframe shell is communicated with the air outlet cavity in air outlet barrel by inner air outlet;Air outlet opening and closing mechanism includes air outlet cover and end cap deflection assembly;Air outlet cover can be switched between the first position of opening outer air outlet located in air outlet barrel and the second position of opening outer air outlet located in the end of air outlet barrel;End cap deflection assembly includes deflection drive motor, deflection output piece and deflection transmission piece, deflection drive motor is relatively fixedly arranged with air outlet barrel, deflection output piece is rotationally arranged in air outlet barrel;Deflection drive motor is transmissionally connected with deflection output piece by deflection transmission piece.The wall-mounted air conditioner indoor unit 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, an air outlet duct, and an air outlet opening and closing mechanism. A fan chamber is formed inside the main unit housing. The peripheral wall of the air outlet duct has a diffuser hole extending along its wall thickness. An air outlet cavity is formed inside the air outlet duct, and the fan chamber is connected to the air outlet cavity through an inner air outlet. The air outlet opening and closing mechanism includes an air outlet cover and an end cover deflection assembly. The air outlet cover can be switched between a first position and a second position relative to the air outlet duct. In the first position, the air outlet cover can open the air outlet located at the end of the air outlet duct. In the second position, the air outlet cover closes the end of the air outlet duct and closes the air outlet.

[0007] The end cap deflection assembly includes a deflection drive motor, a deflection output component, and a deflection transmission component. The deflection drive motor is fixedly disposed relative to the air outlet duct, and the deflection output component is rotatably disposed in the air outlet duct. The axis of rotation of the deflection output component relative to the air outlet duct is parallel to the length direction of the air outlet duct. The deflection drive motor is connected to the deflection output component through the deflection transmission component, and the air outlet cover is movably mounted on the deflection output component.

[0008] The beneficial effects of this wall-mounted air conditioner indoor unit are:

[0009] Because of the air outlet duct, its area can be significantly larger than the air outlet area of ​​a traditional wall-mounted air conditioner indoor unit. This allows for the installation of diffuser holes over a larger area, resulting in a larger airflow volume and faster temperature regulation while maintaining the same density, size, and other conditions for the diffuser holes. The air outlet opening and closing mechanism allows for the following: when the air outlet cover is in the first position, the outlet at the end of the air outlet duct is opened, guiding the airflow outwards; when the air outlet cover is in the second position, the outlet is closed, allowing the airflow to exit through the diffuser holes.

[0010] By setting a deflection drive motor to rotate the deflection output component along an axis parallel to the length of the air outlet duct via a deflection transmission component, the position of the rotation axis when the air outlet cover opens the outdoor air vent can be changed. This alters the direction in which the air outlet cover guides the airflow out of the outdoor air vent, facilitating adjustments to the airflow direction in different air conditioning modes. For example, in heating mode, the position of the air outlet cover connected to the deflection output component is adjusted to the upper part, causing the air outlet cover to lift upwards to open the outdoor air vent. The airflow is then guided downwards by the air outlet cover, allowing hot air to reach the ground as much as possible and improving indoor temperature uniformity. In cooling mode, the position of the air outlet cover connected to the deflection output component is adjusted to the rear, causing the air outlet cover to lift backwards to open the outdoor air vent. The airflow is then guided forwards by the air outlet cover, allowing cold air to blow forward as much as possible and improving indoor temperature uniformity.

[0011] In an optional technical solution, the deflection output component is provided with a first arc-shaped rack, the first arc-shaped rack being located on the inner circumferential surface of the deflection output component, and the deflection transmission component includes an end cover deflection gear fixedly connected to the power output end of the deflection drive motor, the end cover deflection gear meshing with the first arc-shaped rack.

[0012] By setting the first arc-shaped rack on the inner circumference of the deflection output component, and by using the end cover deflection gear to mesh with the first arc-shaped rack, the force of the end cover deflection gear can be directly converted into the torque to drive the deflection output component without significantly increasing the pressure and friction between the deflection output component and the air outlet. This allows the deflection drive motor to drive the end cover deflection gear to rotate with a smaller torque.

[0013] In an optional technical solution, the air outlet cover is pivotally connected to the deflection output component, and the air outlet cover is fixedly connected to the transmission part; the air outlet opening and closing mechanism includes an end cover opening and closing motor fixedly installed on the deflection output component, and the end cover opening and closing motor is drivingly connected to the transmission part.

[0014] By setting a transmission part to fix the air outlet cover, when the air outlet cover is subjected to airflow that opens the air vent or causes the air vent to open more widely, the distance between the position of the transmission part and the pivot axis of the air outlet cover increases. This increases the torque of the force that hinders the opening of the air outlet cover from being applied to both the transmission part and the air outlet cover, which helps to balance the airflow force and makes it easier to control the position of the air outlet cover.

[0015] In an optional technical solution, the transmission part includes an arc-shaped plate part, and the inner circumferential surface of the arc-shaped plate part is provided with a second arc-shaped rack. The end cover opening and closing gear fixedly connected to the power output end of the end cover opening and closing motor meshes with the second arc-shaped rack.

[0016] A second arc-shaped rack is provided on the inner circumferential surface of the arc-shaped plate, so that the end cover opening and closing gear is located on the radial inner side of the second arc-shaped rack. Compared with the scheme where the end cover opening and closing gear and the end cover opening and closing motor are set in the same position and the end cover opening and closing gear meshes with the gear that serves as the transmission part, the lever arm length of the end cover opening and closing gear applying force to the transmission part can be increased, thereby improving the end cover opening and closing motor's control capability over the position of the air outlet cover.

[0017] In an optional technical solution, the air outlet cover includes a cover body and a guide rib fixedly connected to the cover body. When the air outlet cover is in the second position, the guide rib is located on the surface of the air outlet cover facing the inside of the air outlet duct. When the air outlet cover is in the first position, the guide rib extends in a direction away from the air outlet duct.

[0018] By setting up air guide ribs, the airflow can be guided after it encounters the cover of the air outlet, allowing it to flow along the air guide ribs, thereby improving the directionality of the airflow and facilitating cooling or heating of the corresponding area in the indoor space.

[0019] In an optional technical solution, multiple air guide ribs are arranged side by side and spaced apart along the thickness direction of the air guide ribs, and the area of ​​the air guide ribs decreases from the middle to both sides of the arrangement direction.

[0020] Because the airflow velocity near the outer wall of the air outlet is lower than that near the axis of the air outlet when the indoor unit of a wall-mounted air conditioner blows air out through the outlet vent, increasing the area of ​​the guide ribs in the middle can improve the ability to guide this faster airflow, thereby better controlling the airflow direction and allowing the airflow to reach more of the corresponding area.

[0021] In an optional technical solution, the fan cavity is equipped with an air conditioning fan, and the air outlet direction of the air conditioning fan is consistent with the length direction of the air outlet duct.

[0022] With this air conditioner fan configuration, when the air outlet cover is opened to allow the air to pass directly through the air outlet duct and the outside air vent, the airflow direction does not change before encountering the air outlet cover, thus reducing airflow resistance.

[0023] In an optional technical solution, the number of air conditioning fans is two, and a partition plate extending in the front-to-back direction is provided in the fan cavity. The partition plate is located between the two air conditioning fans, and the plate surface of the partition plate faces the air conditioning fans respectively.

[0024] By setting up a partition, the air intake areas of the two air conditioning fans can be partially isolated, thereby enabling the two air conditioning fans to have relatively independent air intake. This allows the two air outlets to achieve different wind speeds and air volumes, thus improving energy efficiency.

[0025] In an optional technical solution, the two sides of the partition plate are provided with raised guide portions, which protrude toward the air conditioner fan respectively.

[0026] By setting a protrusion that faces the air conditioner fan, the airflow entering through the indoor heat exchanger can be guided and deflected toward the air conditioner fan, thereby reducing eddies in the fan cavity and improving air intake efficiency.

[0027] 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.

[0028] 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.

[0029] 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

[0030] 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.

[0031] Figure 1 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 closed.

[0032] Figure 2 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit with forward airflow provided in Embodiment 1 of this utility model.

[0033] Figure 3 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit with downward airflow provided in Embodiment 1 of this utility model.

[0034] Figure 4 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 when the outdoor air vent is closed.

[0035] 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, viewed from another direction when the air is being vented forward.

[0036] Figure 6 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 when the air is being discharged downwards.

[0037] Figure 7 This is a top 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.

[0038] Figure 8 This is a top sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, with one outdoor air vent closed and the other outdoor air vent open.

[0039] Figure 9 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.

[0040] Figure 10 This is a side sectional view of the indoor unit of a wall-mounted air conditioner provided in Embodiment 1 of this utility model.

[0041] Figure 11 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, in the state where the air outlet cover and the deflection output component are separated from the external air duct.

[0042] Figure 12 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 with the air outlet cover and the deflection output component separated from the external air duct.

[0043] Figure 13 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, in which the air outlet cover and the deflection output component are in a separated state.

[0044] Figure 14 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 air outlet cover and the deflection output component separated, viewed from another direction.

[0045] Figure 15 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 air outlet cover and the deflection output component separated, viewed from another direction.

[0046] Explanation of reference numerals in the attached figures:

[0047] 100-Main unit casing; 110-Fan cavity; 120-Air inlet; 130-Indoor heat exchanger; 140-Air conditioning fan; 150-Side partition; 151-Inner air outlet; 160-Middle partition;

[0048] 200 - Air outlet; 210 - Air diffuser;

[0049] 300 - Air outlet opening and closing mechanism; 310 - Air outlet cover; 311 - Cover body; 312 - Air guide rib; 313 - Transmission part; 314 - Arc-shaped plate part; 315 - Second arc-shaped rack; 316 - Connecting rib; 317 - Pivot hole; 320 - End cover deflection assembly; 321 - Deflection drive motor; 322 - Deflection output part; 323 - Deflection transmission part; 324 - First arc-shaped rack; 325 - Pivot shaft; 331 - End cover opening and closing motor; 332 - End cover opening and closing gear. Detailed Implementation

[0050] 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.

[0051] In this application, the definitions of direction 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.

[0052] Example 1:

[0053] Figure 1 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 closed. Figure 2 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit with forward airflow provided in Embodiment 1 of this utility model. Figure 3 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit with downward airflow provided in Embodiment 1 of this utility model. Figure 4 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 when the outdoor air vent is closed. 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, viewed from another direction when the air is being vented forward. Figure 6 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 when the air is being discharged downwards. Figure 7 This is a top 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 8 This is a top sectional view of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, with one outdoor air vent closed and the other outdoor air vent open. Figure 9 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. Figure 10 This is a side sectional view of the indoor unit of a wall-mounted air conditioner provided in Embodiment 1 of this utility model. Figures 1 to 10As shown, the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model includes a main unit housing 100, an air outlet duct 200, and an air outlet opening and closing mechanism 300. A fan chamber 110 is formed inside the main unit housing 100. The peripheral wall of the air outlet duct 200 is provided with a diffuser hole 210 that penetrates along the wall thickness direction. An air outlet cavity is formed inside the air outlet duct 200. The fan chamber 110 is connected to the air outlet cavity through an inner air outlet 151. The air outlet opening and closing mechanism 300 includes an air outlet cover 310 and an end cover deflection assembly 320. The air outlet cover 310 can switch between a first position and a second position relative to the air outlet duct 200. In the first position, the air outlet cover 310 can open the air outlet located at the end of the air outlet duct 200. In the second position, the air outlet cover 310 closes the end of the air outlet duct 200 and closes the air outlet.

[0054] The end cap deflection assembly 320 includes a deflection drive motor 321, a deflection output component 322, and a deflection transmission component 323. The deflection drive motor 321 is fixedly disposed relative to the air outlet 200. The deflection output component 322 is rotatably disposed in the air outlet 200. The axis of rotation of the deflection output component 322 relative to the air outlet 200 is parallel to the length direction of the air outlet 200. The deflection drive motor 321 is connected to the deflection output component 322 through the deflection transmission component 323. The air outlet cover 310 is movably mounted on the deflection output component 322.

[0055] Because of the air outlet duct 200, its area is significantly larger than that of the air outlet of a traditional wall-mounted air conditioner indoor unit. Therefore, the diffuser holes 210 can be installed over a larger area, resulting in a larger airflow and improved temperature regulation speed while maintaining the density, size, and other conditions of the diffuser holes 210. The air outlet opening and closing mechanism 300 allows for the following: when the air outlet cover 310 is in the first position, the outlet at the end of the air outlet duct 200 is opened, guiding the airflow outwards; when the air outlet cover 310 is in the second position, the outlet is closed, allowing the airflow to exit through the diffuser holes 210.

[0056] By setting the deflection drive motor 321 to drive the deflection output component 322 to rotate along an axis parallel to the length of the air outlet duct 200 via the deflection transmission component 323, the position of the rotation axis of the air outlet cover 310 when it opens the outdoor air vent can be changed. This changes the guiding direction of the air outlet cover 310 on the airflow discharged from the outdoor air vent when it is open, which is beneficial for adjusting the airflow direction in different air conditioning modes. For example, when the air conditioner is in heating mode, the position of the air outlet cover 310 connected to the deflection output component 322 is adjusted to the upper part, and the air outlet cover 310 is lifted from bottom to top to open the outdoor air vent. Therefore, the airflow can be guided downward by the air outlet cover 310 so that the hot air can reach the ground as much as possible, improving the uniformity of indoor temperature. If the air conditioner is in cooling mode, rotate the air outlet cover 310 to adjust the position of the deflection output component 322 to the rear. The air outlet cover 310 is lifted from front to back to open the air outlet. Therefore, the airflow can be guided forward by the air outlet cover 310 so that the cold air can be blown forward as much as possible to improve the uniformity of indoor temperature.

[0057] 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 210 can be set in a traditional wall-mounted air conditioner indoor unit is the width multiplied by the length of the air outlet. However, by setting the diffuser 210 on the air outlet duct 200 in this application, the diffuser 210 can be set 360° around the perimeter of a section of the air outlet duct 200. Therefore, the width of the area where the diffuser 210 can be set can be 30 centimeters or 50 centimeters or even more. Even though the air outlet duct 200 in this embodiment is set on the left and right sides of the front part of the fan cavity 110, the total length of the two sides of the air outlet duct 200 may be less than the length of the air outlet of a traditional wall-mounted air conditioner indoor unit. However, the width of the area where the diffuser 210 can be set is significantly increased, which not only offsets the impact of the possible shortening of the setting range, but also significantly increases the area where the diffuser 210 can be set. Naturally, with the distribution density, size and other conditions of the air diffuser 210 remaining unchanged, a larger air volume can be obtained.

[0058] Specifically, in this embodiment, the air outlet duct 200 is located on both sides of the front part of the main unit housing 100, that is, the air outlet cavity is located on the left and right sides of the front part of the fan cavity 110. The fan cavity 110 is separated from the air outlet cavity by the side partition 150 at the front of the fan cavity 110. The main unit housing 100 has an upper air inlet 120 at the top and a lower air inlet 120 at the bottom. An indoor heat exchanger 130 is provided inside the main unit housing 100, i.e., in the fan cavity; specifically, the longitudinal section of the indoor heat exchanger 130 can be approximately a V-shape with the opening facing forward. The air entering the fan cavity 110 from the upper air inlet 120 and the lower air inlet 120 is drawn by the air conditioning fan 140 after heat exchange with the indoor heat exchanger 130. In this embodiment, the air conditioning fan 140 is located at the front of the fan cavity 110 and is installed on the side partition 150. Of course, in another implementation, the air conditioner fan 140 can also be a centrifugal fan, with the axis of the centrifugal fan in the front-to-back direction and the outlet direction of the centrifugal fan consistent with the direction of the inner air outlet 151.

[0059] In this embodiment, the end of the air outlet duct 200 is cylindrical. Alternatively, to increase the area in the air outlet duct 200 where the diffuser holes 210 can be provided, the air outlet duct 200 can be elliptical cylindrical. The cross-section of the elliptical cylindrical shape perpendicular to its axis is an elliptical cross-section, with the major axis pointing vertically and the minor axis pointing horizontally. The only requirement is that the area supporting the rotation of the deflection output component 322 has a circular opening. Since the air outlet cavity is located on the left and right sides of the fan cavity 110 in this embodiment, the air outlet duct 200 can have diffuser holes 210 arranged around its perimeter for most of its length. In this embodiment, the diffuser holes 210 penetrate the perimeter of the air outlet duct 200 along its thickness direction. Preferably, the extension direction of the diffuser holes 210 is consistent with the thickness direction of the perimeter of the air outlet duct 200. Of course, in other implementations, the extension direction of the diffuser holes 210 can be set at an angle to the thickness direction of the corresponding perimeter. Of course, in order to achieve a consistent appearance, holes can also be provided on the front of the main unit housing 100. An airtight front wall panel can be provided on the inner side of the front of the main unit housing 100 to block the front of the holes of the main unit housing 100.

[0060] In this embodiment, all air diffusers 210 are circular. Of course, in other implementations, the air diffusers 210 can be other shapes, such as rectangles, rhombuses, or rounded rectangles or rounded rhombuses. The air diffusers 210 can be arranged in columns, with each column of air diffusers 210 projected horizontally into an adjacent column. More specifically, the air diffusers 210 can be located at the midpoint between two adjacent air diffusers 210. Furthermore, if the air outlet duct 200 is unfolded along its circumference, three adjacent air diffusers 210 can be arranged in an equilateral triangle.

[0061] Unless otherwise specified, this embodiment describes the air outlet duct 200 as being located on the left and right sides of the front part of the main unit housing 100. Of course, in another implementation, the air outlet duct 200 can also be located on the left and right sides of the lower part of the main unit housing 100. In this case, an inner air outlet 151 is provided at the lower part of the side partitions 150 on the left and right sides of the main unit housing 100 to connect to the air outlet cavity. In this implementation, an air inlet 120 is provided on the top or upper part of the front surface of the main unit housing 100, and most of the indoor heat exchanger 130 is located above the air conditioning fan 140. After air enters from the air inlet 120 on the top or upper part of the front surface of the main unit housing 100, it exchanges heat with the indoor heat exchanger 130 in the fan cavity 110 and is then drawn by the air conditioning fan 140 into the air outlet cavity through the inner air inlet 120. If the air conditioner is in cooling mode, the outside air vent can be closed, allowing the cold air to be discharged from the air outlet 200 through the air diffuser 210 in zero-air mode. Since the air outlet 200 has a large area and a large number of air outlets, it can generate a large air volume to meet the cooling needs.

[0062] Furthermore, it should be noted that when the air outlet cover 310 opens the corresponding air outlet, although the air outlet duct 200 is provided with air diffuser holes 210, and the airflow may be discharged from the air diffuser holes 210, the resistance of the air outlet after it is opened by the air outlet cover 310 is less than, or even much less than, the sum of the resistances of the airflow if it were only discharged from all the air diffuser holes 210. Therefore, the airflow is mainly, or even almost entirely, discharged from the air outlet cavity, with only a very small amount of airflow being discharged from the air diffuser holes 210.

[0063] In this embodiment, since there are two air outlet ducts 200, the airflow from each air outlet duct 200 can be controlled separately. This allows the left and right air outlet cavities of a wall-mounted air conditioner indoor unit to discharge air in different modes. For example, in the left air outlet cavity, the air outlet cover 310 is in the first position, the air outlet of the left air outlet cavity is open, and the airflow is discharged in a direct blowing manner. In the right air outlet cavity, the air outlet cover 310 is in the second position, and the air outlet of the right air outlet cavity is closed. Therefore, the airflow entering the right air outlet cavity can be discharged through the diffuser hole 210 instead of from the air outlet at the right end of the air outlet cavity. That is, the airflow in the right air outlet cavity is discharged in a diffused manner. Thus, different airflow patterns are achieved in different air outlet cavities, as shown in the following state. Figure 8 As shown.

[0064] In this embodiment, the deflection output component 322 is generally annular. At least a portion of the outer peripheral surface of the deflection output component 322 contacts the air outlet duct 200 for radial positioning. The deflection output component 322 is rotatably disposed at the end of the air outlet duct 200. In this embodiment, the rotation angle range of the deflection output component 322 relative to the air outlet duct 200 is at least 90°, and can be greater than 90°, for example, 110° or 120°. Since the position where the deflection output component 322 is rotatably connected to the air outlet cover 310 is at the rear or lower part of the two ends of the air outlet cavity, the deflection drive motor 321 can be disposed at the upper or front part of the end region of the air outlet duct 200.

[0065] Figure 11 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, in the state where the air outlet cover and the deflection output component are separated from the external air duct. Figure 12 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 with the air outlet cover and the deflection output component separated from the external air duct. Figure 13 This is a schematic diagram of the structure of the wall-mounted air conditioner indoor unit provided in Embodiment 1 of this utility model, in which the air outlet cover and the deflection output component are in a separated state. Figure 14 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 air outlet cover and the deflection output component separated, viewed from another direction. Figure 15 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 air outlet cover and the deflection output component separated, viewed from another direction. Figures 7 to 9 and Figures 11 to 15 As shown, optionally, the deflection output component 322 is provided with a first arc-shaped rack 324, the first arc-shaped rack 324 is located on the inner circumferential surface of the deflection output component 322, and the deflection transmission component 323 includes an end cover deflection gear fixedly connected to the power output end of the deflection drive motor 321, the end cover deflection gear meshing with the first arc-shaped rack 324.

[0066] The first arc-shaped rack 324 is set on the inner circumferential surface of the deflection output component 322. By using the end cover deflection gear to mesh with the first arc-shaped rack 324, the force of the end cover deflection gear can be directly converted into the torque to drive the deflection output component 322 without significantly increasing the pressure and friction between the deflection output component 322 and the air outlet duct 200. Thus, the deflection drive motor 321 can drive the end cover deflection gear to rotate with a small torque.

[0067] In this embodiment, the first arc-shaped rack 324 is an arc-shaped toothed portion disposed within a portion of the circumferential range of the deflection output member 322. The angular range of the first arc-shaped rack 324 distributed on the inner circumferential surface of the deflection output member 322 should be greater than the rotational angle range of the deflection output member 322 relative to the air outlet 200. For example, if the deflection output member 322 rotates 90° relative to the air outlet 200, the distribution range of the first arc-shaped rack 324 on the inner circumferential surface of the deflection output member 322 can be greater than 100°.

[0068] like Figures 7 to 9 and Figures 13 to 15 As shown, optionally, the air outlet cover 310 is pivotally connected to the deflection output component 322, and the air outlet cover 310 is fixedly connected to the transmission part 313; the air outlet opening and closing mechanism 300 includes an end cover opening and closing motor 331 fixedly installed on the deflection output component 322, and the end cover opening and closing motor 331 is connected to the transmission part 313 in a transmission connection.

[0069] By providing a transmission part 313 to fixally connect the air outlet cover 310, when the air outlet cover 310 is subjected to airflow that opens the air outlet or causes the air outlet to open more widely, the distance between the position of the transmission part 313 subjected to the force and the pivot axis of the air outlet cover 310 increases. This increases the torque of the force that hinders the opening of the air outlet cover 310, thus balancing the airflow force and facilitating the control of the position of the air outlet cover 310.

[0070] Specifically, the transmission part 313 is provided with a pivot hole 317, which is rotatably connected to the pivot shaft 325 provided on the deflection output part 322.

[0071] like Figures 7 to 9 and Figures 12 to 15 As shown, optionally, the transmission part 313 includes an arc-shaped plate part 314, and the inner circumferential surface of the arc-shaped plate part 314 is provided with a second arc-shaped rack 315. The end cover opening and closing gear 332 fixedly connected to the power output end of the end cover opening and closing motor 331 meshes with the second arc-shaped rack 315.

[0072] A second arc-shaped rack 315 is provided on the inner circumferential surface of the arc-shaped plate portion 314, such that the end cover opening and closing gear 332 is located radially inside the second arc-shaped rack 315. Compared with the scheme where the end cover opening and closing gear 332 and the end cover opening and closing motor 331 are located in the same position and the end cover opening and closing gear 332 meshes with the gear that serves as the transmission part 313, the lever arm length of the end cover opening and closing gear 332 applying force to the transmission part 313 can be increased, thereby improving the control capability of the end cover opening and closing motor 331 over the position of the air outlet cover 310.

[0073] Relative to the rotation axis of the air outlet cover 310, the central angle corresponding to the second arc-shaped rack 315 is greater than or equal to the opening angle of the air outlet cover 310. Of course, to improve the connection rigidity of the arc-shaped plate portion 314 or the arc-shaped ring, a connecting rib 516 can be provided on the end face of the arc-shaped plate portion 314 or the arc-shaped ring. The power output end of the end cover opening / closing motor 331 is fixedly connected to an end cover opening / closing gear 332, which meshes with the second arc-shaped rack 315. Furthermore, when the air outlet cover 310 is in the second position, the end cover opening / closing gear 332 and the end cover opening / closing motor 331 can be located within the space enclosed by the transmission portion 313, the air outlet cover 310, and the deflection output member 322. That is, the transmission part 313 can form a flow guide shroud, at least partially covering the area where the end cover opening and closing motor 331, the end cover opening and closing gear 332, the pivot shaft 325, and the pivot hole 317 are located. When the air outlet cover 310 is in the first position, the airflow does not pass through these parts, which can significantly reduce the airflow passing through these parts, thereby reducing the interference of the above-mentioned structures on the airflow and improving the airflow efficiency. It should be noted that when the air outlet cover 310 is in the first position, it is usually not completely perpendicular to the air outlet, because when it is perpendicular, the guiding effect of the air outlet cover 310 on the airflow is significantly reduced. For example, an angle of 45° or 60° can effectively open the air outlet. Therefore, although there is a distance between the edge of the free end of the arc plate and the corresponding area of ​​the inner circumference of the deflection output member 322, the formed flow guide shroud can still block the end cover opening and closing motor 331 and other components to a considerable extent, reducing the interference of these components on the airflow.

[0074] Of course, in another implementation, the end cover opening and closing motor 331 can also drive the air outlet cover 310 to rotate through a four-bar linkage mechanism.

[0075] like Figures 7 to 9 and Figures 12 to 15 As shown, optionally, the air outlet cover 310 includes a cover body 311 and an air guide rib 312 fixedly connected to the cover body 311. When the air outlet cover 310 is in the second position, the air guide rib 312 is located on the surface of the air outlet cover 310 facing the inside of the air outlet duct 200. When the air outlet cover 310 is in the first position, the air guide rib 312 extends in a direction away from the air outlet duct 200.

[0076] By setting the air guide rib 312, the airflow can be guided after it encounters the cover body 311 of the air outlet cover 310, so that the airflow flows along the air guide rib 312, thereby improving the directionality of the airflow and facilitating cooling or heating of the corresponding part of the indoor space.

[0077] Specifically, in this embodiment, multiple air guide ribs 312 can be provided on an air outlet cover 310, and the multiple air guide ribs 312 are arranged in parallel. If the position of the air outlet cover 310 connected to the deflection output component 322 is located at the rear, the air guide ribs 312 can extend in the horizontal direction. That is, in the case where multiple air guide ribs 312 are parallel, the extension direction of the air guide ribs 312 is perpendicular to the rotation axis of the air outlet cover 310.

[0078] like Figure 12 and Figure 15 As shown, optionally, multiple air guide ribs 312 are arranged side by side and spaced apart along the thickness direction of the air guide ribs 312. Among the multiple air guide ribs 312, the area of ​​the air guide ribs 312 decreases from the middle to both sides of the arrangement direction.

[0079] Because the airflow velocity near the perimeter of the air outlet in the air outlet cavity is lower than that near the axis of the air outlet cavity when the indoor unit of the wall-mounted air conditioner vents air out, increasing the area of ​​the central air guide rib 312 can improve the guiding ability of this faster airflow, so as to better control the airflow direction and allow the airflow to reach more of the corresponding area.

[0080] Specifically, the connection is made with the deflection output component 322 of the air outlet cover 310 positioned at the rear of the deflection output component 322. Three horizontally extending air guide ribs 312 are arranged from top to bottom on the side of the cover body 311 facing the air outlet cavity. The middle air guide rib 312 is located along a diameter of the cover body 311. The area of ​​the middle air guide rib 312 is larger than that of the air guide ribs 312 on its upper and lower sides. Specifically, the height of the middle air guide rib 312 may be greater than the other air guide ribs 312, or its length may be greater than the other air guide ribs 312, or the length of the higher section of the middle air guide rib 312 may be greater than the other air guide ribs 312, or two of the above three attributes may be present.

[0081] like Figures 7 to 10 As shown, optionally, the fan cavity 110 is provided with an air conditioning fan 140, and the air outlet direction of the air conditioning fan 140 is consistent with the length direction of the air outlet duct 200.

[0082] With the air conditioner fan 140 configured in this way, when the air outlet cover 310 opens the outdoor air vent, the air from the air conditioner fan 140 can directly pass through the air outlet duct 200 and the outdoor air vent, and the airflow direction will not change before encountering the air outlet cover 310, thereby reducing the airflow resistance.

[0083] The type of air conditioning fan 140 can be an axial flow fan, a mixed flow fan, or a vortex fan. In this embodiment, two air conditioning fans 140 of the above types can be arranged in a left-right direction, and the inner air outlet 151 on the side partition 150 is correspondingly provided with the air conditioning fan 140, and its shape can be circular. Specifically, the front part of the side partition 150, the part corresponding to the air outlet cavity, can be a streamlined shape with a gradually increasing cross-section perpendicular to the axis of the air conditioning fan, starting from the air outlet of the air conditioning fan 140, so as to realize the gradual transition of the airflow from the air outlet of the air conditioning fan 140 to the air outlet cavity.

[0084] like Figures 7 to 10 As shown, optionally, there are two air conditioning fans 140. A partition 160 extending in the front-to-back direction is provided in the fan cavity 110. The partition 160 is located between the two air conditioning fans 140, and the surface of the partition 160 faces the air conditioning fans 140 respectively.

[0085] By setting a partition 160, the air intake areas of the two air conditioning fans 140 can be partially isolated, thereby enabling the two air conditioning fans 140 to have relatively independent air intake. This is beneficial for the two air outlets 200 to achieve different wind speeds and air volumes, thereby improving energy efficiency.

[0086] Specifically, in this embodiment, the partition 160 extends forward from the front surface of the indoor heat exchanger 130 to the front of the fan cavity 110, thereby dividing the front-middle region of the fan cavity 110 into left and right parts. Because of the partition 160, the airflow entering the fan cavity 110, after passing through the indoor heat exchanger 130, can be drawn separately by the two air conditioning fans 140 without interfering with each other.

[0087] The partition 160 is located in the middle region between the two air conditioning fans 140, and is equidistant from the air inlets of the two air conditioning fans 140. In this embodiment, the partition 160 is generally vertical, not inclined, and it is not required that all positions on the left and right surfaces of the partition 160 be perpendicular to the horizontal plane. Of course, in other implementations, the partition 160 may not be perpendicular to the left and right directions relative to the air conditioner.

[0088] like Figures 7 to 9 As shown, optionally, the two sides of the partition 160 are provided with raised guide portions, which protrude toward the air conditioning fan 140 respectively.

[0089] By setting a protrusion that faces the air conditioner fan 140, the airflow passing through the indoor heat exchanger 130 can be guided and deflected toward the air conditioner fan 140 to reduce eddies in the fan cavity 110 and improve air intake efficiency.

[0090] In this embodiment, the cross-section of the protrusion perpendicular to the left-right direction of the wall-mounted air conditioner indoor unit can be circular, and the closer it is to the inlet of the air conditioner fan 140, the smaller the circular cross-sectional area. Moreover, the most protruding position of the protrusion can be collinear with the axis of the air conditioner fan 140.

[0091] Example 2:

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] In the above embodiments, descriptions of directions such as "up" and "down" are based on the accompanying drawings.

[0097] 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.

[0098] 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), an air outlet duct (200), and an air outlet opening and closing mechanism (300). The main housing (100) forms a fan cavity (110). The peripheral wall of the air outlet duct (200) is provided with a diffuser hole (210) that extends through the wall thickness direction. An air outlet cavity is formed inside the air outlet duct (200). The fan cavity (110) is connected to the air outlet cavity through an inner air outlet (151). The air outlet opening and closing mechanism (300) includes an air outlet cover (310) and an end cover deflection assembly (320). The air outlet cover (310) can switch between a first position and a second position relative to the air outlet duct (200). In the first position, the air outlet cover (310) can open the air outlet located at the end of the air outlet duct (200). In the second position, the air outlet cover (310) closes the end of the air outlet duct (200) and closes the air outlet. The end cap deflection assembly (320) includes a deflection drive motor (321), a deflection output component (322), and a deflection transmission component (323). The deflection drive motor (321) is fixedly disposed relative to the air outlet duct (200). The deflection output component (322) is rotatably disposed in the air outlet duct (200). The axis of rotation of the deflection output component (322) relative to the air outlet duct (200) is parallel to the length direction of the air outlet duct (200). The deflection drive motor (321) is connected to the deflection output component (322) through the deflection transmission component (323). The air outlet cover (310) is movably mounted on the deflection output component (322).

2. The wall-mounted air conditioner indoor unit according to claim 1, characterized in that, The deflection output component (322) is provided with a first arc-shaped rack (324), the first arc-shaped rack (324) is located on the inner circumferential surface of the deflection output component (322), and the deflection transmission component (323) includes an end cover deflection gear fixedly connected to the power output end of the deflection drive motor (321), the end cover deflection gear meshing with the first arc-shaped rack (324).

3. The wall-mounted air conditioner indoor unit according to claim 2, characterized in that, The air outlet cover (310) is pivotally connected to the deflection output component (322), and the air outlet cover (310) is fixedly connected to the transmission part (313); the air outlet opening and closing mechanism (300) includes an end cover opening and closing motor (331) fixedly installed on the deflection output component (322), and the end cover opening and closing motor (331) is connected to the transmission part (313) in a transmission connection.

4. The wall-mounted air conditioner indoor unit according to claim 3, characterized in that, The transmission part (313) includes an arc-shaped plate part (314), and the inner circumferential surface of the arc-shaped plate part (314) is provided with a second arc-shaped rack (315). The end cover opening and closing gear (332) fixedly connected to the power output end of the end cover opening and closing motor (331) meshes with the second arc-shaped rack (315).

5. The wall-mounted air conditioner indoor unit according to any one of claims 1-4, characterized in that, The air outlet cover (310) includes a cover body (311) and a guide rib (312) fixedly connected to the cover body (311). When the air outlet cover (310) is in the second position, the guide rib (312) is located on the surface of the air outlet cover (310) facing the inside of the air outlet duct (200). When the air outlet cover (310) is in the first position, the guide rib (312) extends in a direction away from the air outlet duct (200).

6. The wall-mounted air conditioner indoor unit according to claim 5, characterized in that, Multiple air guide ribs (312) are arranged side by side and spaced apart along the thickness direction of the air guide ribs (312). Among the multiple air guide ribs (312), the area of ​​the air guide ribs (312) decreases from the middle to both sides of the arrangement direction.

7. The wall-mounted air conditioner indoor unit according to any one of claims 1-4, characterized in that, The fan cavity (110) is equipped with an air conditioning fan (140), and the air outlet direction of the air conditioning fan (140) is consistent with the length direction of the air outlet duct (200).

8. The wall-mounted air conditioner indoor unit according to claim 7, characterized in that, There are two air conditioning fans (140). A partition (160) extending in the front-to-back direction is provided in the fan cavity (110). The partition (160) is located between the two air conditioning fans (140), and the surface of the partition (160) faces the air conditioning fans (140) respectively.

9. The wall-mounted air conditioner indoor unit according to claim 8, characterized in that, The partition plate (160) has raised guide sections on both sides, and the raised guide sections protrude toward the air conditioning fan (140) respectively.

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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