Air conditioner indoor unit with lower air outlet

Abstract

The air conditioner indoor unit with the lower air outlet comprises a shell and the lower air outlet, an air outlet cavity is defined in the shell, and the front surface of the air outlet cavity protrudes forwards. The lower air outlet is formed in the lower portion of the front surface of the air outlet cavity and penetrates through the shell, and the lower edge of the lower air outlet is located on the rear lower side of the upper edge. The axial flow fan is arranged on the rear side of the air outlet cavity and configured to blow airflow to the air outlet cavity on the front side of the axial flow fan. According to the air conditioner indoor unit with the lower air outlet, the problem that vortexes are prone to being generated in the air outlet can be solved, and the effects of reducing airflow loss and increasing the air outlet amount of the air conditioner indoor unit are achieved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an indoor air conditioner unit with a bottom air outlet. Background Technology

[0002] A wall-mounted air conditioner indoor unit is a type of air conditioner indoor unit that is suspended on a wall. It has an air inlet at the top and an air outlet at the lower front. An air guide plate is installed at the air outlet. A heat exchanger and a cross-flow fan are installed in the air duct between the air inlet and outlet. During operation, air enters the air duct from the air inlet under the action of the cross-flow fan, undergoes heat exchange in the heat exchanger, and is blown out from the air outlet. The angle of the air guide plate can be adjusted to direct the airflow forward or downward. However, when the upper or lower air outlet is closed, the airflow blows vertically onto the upper or lower air guide plate or the inner surface of the front wall, easily creating vortices at the air outlet. This increases airflow loss and reduces the air volume output of the wall-mounted air conditioner indoor unit. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air conditioning indoor unit with a downward air outlet that overcomes or at least partially solves the above problems.

[0004] One objective of this invention is to solve the problem of vortices that are easily generated inside the air outlet, thereby reducing airflow loss and increasing the air volume of the indoor unit of the air conditioner.

[0005] Another objective of this invention is to solve the problem of temperature difference between the upper and lower spaces of an indoor unit during operation of an air conditioner, thereby reducing the temperature difference between the upper and lower spaces.

[0006] Another objective of this invention is to solve the difficult problem of regulating the air volume, air velocity, and air delivery distance of the indoor unit of an air conditioner, so as to achieve the effect of facilitating the regulation of the air volume, air velocity, and air delivery distance of the indoor unit of the air conditioner.

[0007] Specifically, this utility model provides an indoor air conditioning unit with a downward air outlet, comprising:

[0008] A housing, wherein an air outlet cavity is defined within the housing, and the front surface of the air outlet cavity protrudes forward;

[0009] The lower air outlet is located at the lower part of the front surface of the air outlet cavity and penetrates the housing. The lower edge of the lower air outlet is located behind and below the upper edge.

[0010] An axial flow fan is disposed at the rear side of the air outlet cavity, and the axial flow fan is configured to blow airflow into the air outlet cavity at its front side.

[0011] Optionally, the front surface of the air outlet cavity has a first air guiding area, and the angle between the plane containing the first air guiding area and the vertical plane is 0° to 10°.

[0012] Optionally, the housing includes:

[0013] The first inclined section is located on the upper side of the lower air outlet; it extends from the lower end of the first air guiding area to the upper end of the lower air outlet.

[0014] Optionally, the housing includes:

[0015] bottom wall;

[0016] The second inclined section is located on the lower side of the lower air outlet; it extends backward and downward from the lower end of the lower air outlet to the front end of the bottom wall; the rear surface of the second inclined section is the lower part of the front surface of the air outlet cavity;

[0017] The lower end of the first air guiding area forms the upper edge of the lower air outlet.

[0018] Optionally, the indoor unit of the air conditioner further includes:

[0019] A lower air guide plate is slidably or rotatably disposed at the lower air outlet and configured to open or close the lower air outlet.

[0020] Optionally, the indoor unit of the air conditioner further includes:

[0021] An upper air outlet is located on the upper part of the front surface of the air outlet cavity and penetrates the housing. The lower edge of the upper air outlet is located on the lower front side of the upper edge.

[0022] An upper air guide plate is slidably or rotatably disposed at the upper air outlet and configured to open or close the upper air outlet.

[0023] Optionally, the housing further includes:

[0024] The third inclined section is located below the upper air outlet, and the upper edge of the third inclined section is located behind the lower edge.

[0025] The air guide section has its upper end connected to the lower end of the third inclined section, and its rear surface is the first air guide area.

[0026] Optionally, the diameter of the axial flow fan is greater than the distance between the upper edge of the lower air outlet and the lower edge of the upper air outlet.

[0027] Optionally, when the lower air guide plate is rotatably configured, the rotation axis of the lower air guide plate is located near the air guide section;

[0028] The lower air guide plate can be rotated to a vertical position. When the lower air guide plate is in a vertical position, the front surface of the second inclined section forms a second air guide area, which guides the airflow to the rear and downward.

[0029] Optionally, the indoor unit of the air conditioner further includes:

[0030] A heat exchanger is disposed inside the air outlet cavity and is located on the front side of the axial flow fan;

[0031] A partition is disposed inside the housing, and a through hole is provided on the partition, the through hole being correspondingly provided with the axial flow fan;

[0032] A flow guide grille is disposed within the through hole;

[0033] An air intake ring is provided on the side of the partition plate near the axial flow fan, and the axial flow fan is provided inside the air intake ring.

[0034] The housing further includes an air inlet shroud, which is located at the rear of the axial flow fan; the air inlet shroud includes:

[0035] Rear housing, wherein the rear housing is vertically arranged;

[0036] The side housing is inclined and surrounds the rear housing, and an air inlet is provided on the side housing.

[0037] In this invention, an air conditioner indoor unit with a lower air outlet utilizes an axial flow fan to blow air into the air outlet cavity. The airflow flows along the front surface of the air outlet cavity and is then expelled outwards upon reaching the lower air outlet. The front surface of the air outlet cavity bulges forward, causing the airflow to flow forward and downward along this surface after reaching the cavity. This prevents the formation of vortices within the lower air outlet, reduces airflow resistance and loss, thereby increasing the air volume output of the indoor unit and ultimately improving its airflow performance and user experience.

[0038] Furthermore, by using axial flow fans to deliver air outwards, compared to cross-flow fans, axial flow fans can provide a larger air volume during operation, further increasing the air output of the indoor unit of the air conditioner. In addition, axial flow fans are characterized by low noise, maintaining a lower noise level during operation, making them more suitable for indoor environments and improving the user experience.

[0039] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0040] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0041] Figure 1 This is a schematic structural diagram of an indoor air conditioner unit according to an embodiment of the present utility model;

[0042] Figure 2 This is a schematic structural diagram of a single air outlet at the lower air outlet according to an embodiment of the present utility model;

[0043] Figure 3 This is a schematic structural diagram of a single air outlet at the top of an embodiment of the present invention.

[0044] Figure 4 This is a schematic structural diagram showing the simultaneous airflow from the lower air outlet and the upper air outlet according to an embodiment of the present invention.

[0045] Figure 5 This is a schematic structural diagram showing the rotatable lower air guide plate according to an embodiment of the present utility model;

[0046] Figure 6 This is a schematic structural diagram showing the rotatable lower air guide plate according to another embodiment of the present invention;

[0047] Figure 7 This is a schematic exploded view of an indoor air conditioner unit according to an embodiment of the present invention. Detailed Implementation

[0048] The following reference Figures 1 to 7 This invention describes an indoor air conditioning unit with a downward air outlet according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0049] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0052] Figure 1 This is a schematic structural diagram of an indoor air conditioning unit according to an embodiment of the present invention. The arrows in the diagram indicate the direction of airflow. Figure 1 As shown, and refer to Figures 2 to 7 This utility model provides an indoor air conditioning unit 100 with a lower air outlet, including a housing 10 and a lower air outlet 210. An air outlet cavity 130 is defined within the housing 10, and the front surface of the air outlet cavity 130 protrudes forward. The lower air outlet 210 is located at the lower part of the front surface of the air outlet cavity 130 and penetrates the housing 10, with its lower edge positioned behind and below the upper edge. An axial flow fan 40 is located at the rear of the air outlet cavity 130 and is configured to blow airflow into the air outlet cavity 130 in front of it.

[0053] In this embodiment, the axial flow fan 40 blows airflow into the air outlet cavity 130. The airflow flows along the front surface of the air outlet cavity 130 and is discharged outward when it reaches the lower air outlet 210. The front surface of the air outlet cavity 130 protrudes forward. After the airflow reaches the air outlet cavity 130, it flows forward and downward along the front surface of the air outlet cavity 130, avoiding the formation of vortices in the airflow inside the lower air outlet 210, reducing airflow resistance and airflow loss, thereby increasing the air volume of the air conditioner indoor unit 100, and thus improving the air outlet effect of the air conditioner indoor unit 100 and enhancing the user experience.

[0054] Furthermore, by supplying air to the outside via the axial flow fan 40, compared to a cross-flow fan, the axial flow fan 40 can provide a larger air volume during operation, further increasing the air volume output of the indoor unit 100. In addition, the axial flow fan 40 is characterized by low noise, maintaining a lower noise level during operation, making it more suitable for indoor environments and enhancing the user experience.

[0055] In some embodiments of this utility model, such as Figures 2 to 5 As shown, the front surface of the air outlet cavity 130 has a first air guiding area 115, and the angle between the plane containing the first air guiding area 115 and the vertical plane is 0° to 10°. For example, the angle between the plane containing the first air guiding area 115 and the vertical plane is 0°, 2°, 4°, 6°, 8° or 10°.

[0056] In this embodiment, when the airflow flows along the first air guide area 115, it flows downward or forward and downward. Since the angle between the plane where the first air guide area 115 is located and the vertical plane is small, the airflow blown out from the lower air outlet 210 is closer to the ground. Especially when the air conditioner is heating, the airflow flows a greater distance downward, which makes the airflow landing better, thereby reducing the temperature difference between the upper space and the space, and thus improving the comfort of the human body and the user experience.

[0057] Preferably, the angle between the plane containing the first air guiding area 115 and the vertical plane is 0°.

[0058] In this embodiment, the first air guiding area 115 is vertically arranged. Airflow reaches the front surface of the air outlet cavity 130 and flows downwards, exiting through the lower air outlet 210. Because the airflow flows along the front surface of the air outlet cavity 130, it exits from the lower air outlet 210 in a vertically downward direction. This vertical downward flow travels a greater distance, bringing the airflow closer to the ground, resulting in better grounding and reducing the temperature difference between the upper and lower interior spaces. This, in turn, improves human comfort and enhances the user experience.

[0059] In some embodiments of this utility model, such as Figure 6As shown, the housing 10 includes a first inclined section 111, which is disposed on the upper side of the lower air outlet 210. The first inclined section 111 extends from the lower end of the first air guiding area 115 to the upper end of the lower air outlet 210.

[0060] In some embodiments of this utility model, such as Figures 2 to 5 As shown, the housing 10 includes a bottom wall 140 and a second inclined section 113. The second inclined section 113 is disposed below the lower air outlet 210. The first inclined section 111 extends rearward and downward from the lower end of the lower air outlet 210 to the front end of the bottom wall 140. The rear surface of the second inclined section 113 is the lower part of the front surface of the air outlet cavity 130. The lower end of the first air guiding region 115 forms the upper edge of the lower air outlet 210.

[0061] In this embodiment, the axial flow fan 40 blows airflow into the air outlet cavity 130. The airflow flows along the front surface of the air outlet cavity 130 and is discharged outward when it reaches the lower air outlet 210. The front surface of the air outlet cavity 130 protrudes forward. After the airflow reaches the air outlet cavity 130, it flows forward and downward and forward and upward along the front surface of the air outlet cavity 130, avoiding the formation of vortices in the airflow inside the lower air outlet 210, reducing airflow resistance, reducing airflow loss, thereby increasing the air volume of the air conditioner indoor unit 100, and thus improving the air outlet effect of the air conditioner indoor unit 100 and improving the user experience.

[0062] In some other embodiments of this utility model, the lower air outlet 210 is located at the upper end of the second inclined section 113.

[0063] In some embodiments of this utility model, such as Figures 2 to 6 As shown, the indoor unit 100 of the air conditioner also includes a lower air guide plate 310, which is slidably or rotatably disposed at the lower air outlet 210 and configured to open or close the lower air outlet 210.

[0064] In this embodiment, the lower air guide plate 310 is slidable or rotatable. When the lower air guide plate 310 is slidable, it can slide to different positions, thereby adjusting the air outlet area of ​​the lower air outlet 210, i.e., adjusting the air volume of the indoor air unit 100. As the air outlet area gradually increases, the airflow velocity decreases, and the air delivery distance of the indoor air unit 100 decreases. Conversely, as the air outlet area gradually decreases, the airflow velocity increases, and the air delivery distance of the indoor air unit 100 increases. By adjusting the air outlet area through the slidable lower air outlet 210, the air volume, airflow velocity, and air delivery distance of the indoor air unit 100 can be easily adjusted. The adjustment method is simple and improves the user experience. Furthermore, by adjusting the air volume, airflow velocity, and air delivery distance of the indoor air unit 100, different user air delivery needs can be met, further enhancing the user experience.

[0065] When the lower air guide plate 310 is rotatable, its surface guides the airflow. By rotating the lower air guide plate 310 to different angles, the airflow direction of the lower air outlet 210 can be adjusted, thus preventing direct airflow onto the user and improving the user experience. The rotation of the lower air guide plate 310 also allows adjustment of the air outlet angle of the lower air outlet 210, enabling large-angle or long-distance air delivery from the indoor unit 100, further enhancing the user experience.

[0066] In some embodiments of this utility model, such as Figures 2 to 6 As shown, the indoor unit 100 of the air conditioner also includes an upper air outlet 220 and an upper air guide plate 320. The upper air outlet 220 is located on the upper part of the front surface of the air outlet cavity 130 and penetrates the housing 10. The lower edge of the upper air outlet 220 is located on the lower front side of the upper edge. The upper air guide plate 320 is slidably or rotatably disposed at the upper air outlet 220 and is configured to open or close the upper air outlet 220.

[0067] In this embodiment, the indoor unit 100 of the air conditioner includes a lower air outlet 210 and an upper air outlet 220. The lower air outlet 210 is located below the upper air outlet 220. A lower air guide plate 310 is rotatably or slidably installed at the lower air outlet 210, and an upper air guide plate 320 is rotatably or slidably installed at the upper air outlet 220. For example, both the lower air guide plate 310 and the upper air guide plate 320 can be rotatably installed to adjust the air outlet angle and air outlet direction of the lower air outlet 210 and the upper air outlet 220, thereby adjusting the air supply angle and air supply direction of the indoor unit 100 of the air conditioner. Or, as... Figures 2 to 4 As shown, both the lower air guide plate 310 and the upper air guide plate 320 are slidably configured to adjust the air volume and velocity of the lower air outlet 210 and the upper air outlet 220, thereby adjusting the air volume, velocity, and delivery distance of the indoor unit 100 of the air conditioner. Alternatively, as... Figure 5 and Figure 6 As shown, the lower air guide plate 310 is rotatably configured to adjust the air outlet angle and direction of the lower air outlet 210, while the upper air guide plate 320 is slidably configured to adjust the air volume and velocity of the upper air outlet 220, thereby adjusting the air supply angle, air supply direction, air volume, air velocity, and air supply distance of the indoor air conditioning unit 100. Alternatively, the lower air guide plate 310 can be slidably configured to adjust the air volume and velocity of the lower air outlet 210, and the upper air guide plate 320 can be rotatably configured to adjust the air outlet angle and direction of the upper air outlet 220, thereby adjusting the air supply angle, air supply direction, air volume, air velocity, and air supply distance of the indoor air conditioning unit 100. Through the combination of the lower air guide plate 310 and the upper air guide plate 320, the indoor air conditioning unit 100 has multiple air supply modes to meet different user airflow needs, thereby improving the user experience.

[0068] Furthermore, the lower air outlet 210 is angled downwards from front to back, and the upper air outlet 220 is angled upwards from front to back. The lower air outlet 210 or the upper air outlet 220 can simultaneously supply air outwards; the lower air outlet 210 supplies air downwards and forwards, while the upper air outlet 220 supplies air upwards and forwards, increasing the air supply angle of the indoor unit 100 and thus improving its airflow efficiency. Alternatively, when the indoor unit 100 is in heating mode, the lower air outlet 210 is open, and the upper air outlet 220 is closed. The lower air outlet 210 supplies air downwards and forwards, causing the hot air to flow downwards and forwards and diffuse upwards within the room, thereby reducing the indoor temperature difference and making the indoor temperature distribution more uniform, thus improving human comfort. Alternatively, when the indoor unit 100 of the air conditioner is cooling, the lower air outlet 210 is closed and the upper air outlet 220 is opened. The upper air outlet 220 sends air forward and upward, and the cold air flows forward and upward and diffuses downward in the room, avoiding cold air blowing directly on the user and reducing the indoor temperature difference, making the indoor temperature distribution more uniform, thereby improving the comfort of the human body.

[0069] In some other embodiments of this utility model, when the upper air guide plate 320 is rotatably disposed on the upper air outlet 220, the rotation axis of the upper air guide plate 320 is disposed near the upper edge of the upper air outlet 220.

[0070] In this embodiment, the upper air guide plate 320 rotates upward to open the upper air outlet 220. When the indoor unit 100 of the air conditioner is heating, the upper air guide plate 320 can be opened at a small angle, and the airflow blows downward from the upper air outlet 220, with the hot airflow flowing downward along the front surface of the air guide section 112. During heating, the upper air outlet 220 and the lower air outlet 210 simultaneously send air outward, solving the problem of insufficient airflow when the lower air outlet 210 alone blows air out, and the hot airflow flows downward, avoiding a large temperature difference in the room.

[0071] In some embodiments of this utility model, such as Figures 2 to 6 As shown, the width of the lower air outlet 210 is equal to the width of the upper air outlet 220. The angle between the lower air outlet 210 and the horizontal plane is smaller than the angle between the upper air outlet 220 and the horizontal plane.

[0072] In this embodiment, the lower air outlet 210 and the upper air outlet 220 have the same width. When the lower air outlet 210 and the upper air outlet 220 are fully open, the air outlet area of ​​the lower air outlet 210 and the upper air outlet 220 is the same, that is, the air volume of the lower air outlet 210 and the upper air outlet 220 is the same, thereby making the airflow more evenly flow into the room.

[0073] The lower air outlet 210 and the upper air outlet 220 are set at an angle. The lower air outlet 210 has a larger angle of inclination, meaning that when the air blows outward from the lower air outlet 210, the airflow tilts downward at a larger angle. When the indoor unit 100 is heating, this allows the hot airflow to travel a farther downward distance, bringing it closer to the ground, resulting in a more even temperature distribution indoors and improved comfort. The upper air outlet 220 has a smaller angle of inclination, preventing the airflow from rising too much when it exits from the upper air outlet 220, further improving the airflow's grounding effect and enhancing the airflow efficiency of the indoor unit 100.

[0074] In some embodiments of this utility model, such as Figures 2 to 5 As shown, the housing 10 also includes a third inclined section 114 and a guide section 112. The third inclined section 114 is located below the upper air outlet 220, and the upper edge of the third inclined section 114 is located behind the lower edge. The upper end of the guide section 112 is connected to the lower end of the third inclined section 114, and the rear surface of the guide section 112 is the first guide area 115.

[0075] In this embodiment, the front side of the housing 10 includes a second inclined section 113, a third inclined section 114, and a guide section 112. The upper air outlet 220 is located above the third inclined section 114, and the lower air outlet 210 is located below the guide section 112. When the lower air outlet 210 is discharging air alone, the upper air outlet 220 is closed. The airflow is blown onto the rear surfaces of the upper guide plate 320, the third inclined section 114, and the guide section 112 and flows along the third inclined section 114 and the guide section 112, before being blown downwards from the lower air outlet 210. As the airflow flows along the rear surface of the third inclined section 114, it flows forward and downward, preventing the airflow from forming vortices inside the upper air outlet 220, reducing airflow resistance and airflow loss, thereby increasing the air volume of the indoor unit 100, and thus improving the airflow effect of the indoor unit 100 and enhancing the user experience.

[0076] In some embodiments of this utility model, the ratio of the length of the third inclined section 114 to the length of the air guide section 112 is 2 / 3 to 1.

[0077] Preferably, the ratio of the length of the third inclined section 114 to the length of the air guide section 112 is 1.

[0078] In some embodiments of this utility model, the angle between the third inclined section 114 and the air guide section 112 is 160° to 170°.

[0079] In this embodiment, the angle between the third inclined section 114 and the air guide section 112 is relatively large, making the airflow smoother as it flows from the third inclined section 114 to the air guide section 112. This prevents airflow disturbance, reduces airflow loss, and thus improves the air outlet performance of the indoor unit 100, enhancing the user experience. For example, the angle between the third inclined section 114 and the air guide section 112 is 160°, 165°, or 170°.

[0080] Preferably, the angle between the third inclined section 114 and the air guide section 112 is 165°.

[0081] In some embodiments of this utility model, the diameter of the axial flow fan 40 is greater than the distance between the upper edge of the lower air outlet 210 and the lower edge of the upper air outlet 220.

[0082] In this embodiment, since the diameter of the axial fan 40 is larger than the distance between the upper edge of the lower air outlet 210 and the lower edge of the upper air outlet 220, the highest point of the edge of the axial fan 40 is above the lower edge of the upper air outlet 220, and the lowest point of the edge of the axial fan 40 is below the upper edge of the lower air outlet 210. The axial fan 40 blows air forward, with the upper airflow directly exiting from the upper air outlet 220 and the lower airflow directly exiting from the lower air outlet 210, reducing airflow loss within the air outlet cavity 130, thereby increasing the air volume of the indoor unit 100 and improving the air outlet effect of the indoor unit 100.

[0083] In some embodiments of this utility model, such as Figure 5 As shown, when the lower air guide plate 310 is rotatable, its rotation axis is positioned near the air guide section 112. The lower air guide plate 310 can rotate to a vertical position. When the lower air guide plate 310 is in a vertical position, the front surface of the second inclined section 113 forms a second air guide area 116, which guides the airflow downwards and backwards.

[0084] In this embodiment, the lower air outlet 210 is located above the second inclined section 113, and the lower air guide plate 310 rotates upward to open the lower air outlet 210. When the lower air guide plate 310 is in a vertical position, the rear surface of the lower air guide plate 310 guides the airflow downward. During the airflow process, the airflow flows downward and backward along the second air guide area 116, solving the problem of the airflow not being able to reach the dead corner below the indoor unit 100 of the air conditioner, making the indoor temperature distribution more uniform.

[0085] In some embodiments of this utility model, such as Figures 2 to 6 As shown, the indoor unit 100 of the air conditioner also includes a heat exchanger 50, which is disposed in the air outlet cavity 130 and is located in front of the axial flow fan 40.

[0086] In this embodiment, the axial fan 40 is located behind the heat exchanger 50. The airflow passes through the axial fan 40 before entering the heat exchanger 50 for heat exchange. The axial fan 40 has a small cross-sectional area, so when setting the air inlet 60, the air inlet area of ​​the air inlet 60 can be made as large as possible, thereby increasing the air intake volume of the air conditioner indoor unit 100, and thus increasing the air output volume of the air conditioner indoor unit 100.

[0087] In some embodiments of this utility model, such as Figure 7 As shown, the indoor unit 100 of the air conditioner also includes a partition 70 and a baffle 90. The partition 70 is disposed inside the housing 10 and has a through hole, which is corresponding to the axial flow fan 40. The baffle 90 is disposed inside the through hole.

[0088] In this embodiment, a guide vane 90 is provided on the air outlet side of the axial fan 40. The airflow blown from the axial fan 40 passes through the guide vane 90, which improves the airflow distribution, reduces airflow disturbance, and makes the blown airflow flow more smoothly, thereby reducing airflow loss, improving the efficiency of the axial fan 40, and thus improving the air outlet effect of the air conditioner indoor unit 100. Furthermore, by improving the airflow distribution, the noise generated by the airflow can be further reduced, thereby reducing the noise of the air conditioner indoor unit 100 during operation and improving the user experience.

[0089] In some embodiments of this utility model, such as Figures 2 to 6 As shown, the indoor unit 100 of the air conditioner also includes an air duct ring 80, which is disposed on the side of the partition 70 near the axial flow fan 40, and the axial flow fan 40 is disposed inside the air duct ring 80.

[0090] In this embodiment, the axial flow fan 40 is disposed within the air intake ring 80. The placement of the air intake ring 80 reduces gap leakage of the axial flow fan 40 and reduces radial airflow loss, thereby improving the air delivery efficiency and performance of the axial flow fan 40, and thus improving the air outlet effect of the indoor unit 100 of the air conditioner.

[0091] In some embodiments of this utility model, such as Figures 2 to 7 As shown, the housing 10 also includes an air inlet shroud 120, which is located behind the axial flow fan 40. The air inlet shroud 120 includes a rear housing 121 and a side housing 122. The rear housing 121 is vertically arranged. The side housing 122 is inclined and surrounds the rear housing 121. An air inlet 60 is provided on the side housing 122.

[0092] In this embodiment, the air inlet cover 120 includes a rear cover 121 and a side cover 122. The side cover 122 is provided with an air inlet 60, that is, airflow enters from the periphery of the air conditioner indoor unit 100.

[0093] In some embodiments of this utility model, the air conditioner indoor unit 100 is a wall-mounted air conditioner indoor unit, a floor-standing air conditioner indoor unit, or other air conditioner indoor units.

[0094] Preferably, in some embodiments of this utility model, the air conditioner indoor unit 100 is a wall-mounted air conditioner indoor unit.

[0095] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner indoor unit having a lower air outlet, characterized by comprising: Comprising: a housing, a front surface of an air outlet cavity defined in the housing is convex forward; a lower air outlet, provided on a lower part of the front surface of the air outlet cavity and penetrating through the housing, a lower edge of the lower air outlet is on a rear lower side of an upper edge; an axial flow fan, provided on a rear side of the air outlet cavity, the axial flow fan is configured to blow air flow to the air outlet cavity on a front side thereof.

2. The air conditioner indoor unit according to claim 1, characterized in that: the front surface of the air outlet cavity has a first air guide area, an included angle between a plane where the first air guide area is located and a vertical plane is 0° to 10°. 3.The indoor unit of the air conditioner according to claim 2, characterized by, The housing comprises: a first inclined section, provided on an upper side of the lower air outlet, extending rearward and downward from a lower end of the first air guide area to an upper end of the lower air outlet. 4.The indoor unit of the air conditioner according to claim 2, characterized by, The housing comprises: a bottom wall; a second inclined section, provided on a lower side of the lower air outlet, extending rearward and downward from a lower end of the lower air outlet to a front end of the bottom wall, a rear surface of the second inclined section is a lower part of the front surface of the air outlet cavity; the lower end of the first air guide area forms the upper edge of the lower air outlet. 5.The indoor unit of the air conditioner according to claim 4, characterized in that, Further comprising: a lower air guide plate, slidably or rotatably provided at the lower air outlet, configured to open or close the lower air outlet. 6.The indoor unit of the air conditioner according to claim 5, characterized in that, Further comprising: an upper air outlet, provided on an upper part of the front surface of the air outlet cavity and penetrating through the housing, a lower edge of the upper air outlet is on a front lower side of an upper edge; an upper air guide plate, slidably or rotatably provided at the upper air outlet, configured to open or close the upper air outlet. 7.The indoor unit of the air conditioner according to claim 6, characterized by, The housing further comprises: a third inclined section, the third inclined section is below the upper air outlet, an upper edge of the third inclined section is on a rear side of a lower edge; an air guide section, an upper end of the air guide section is connected to a lower end of the third inclined section, a rear surface of the air guide section is the first air guide area.

8. The air conditioner indoor unit according to claim 7, characterized in that: a diameter of the axial flow fan is greater than a distance between the upper edge of the lower air outlet and the lower edge of the upper air outlet.

9. The air conditioner indoor unit according to claim 7, characterized in that: when the lower air guide plate is rotatably provided, a rotation shaft of the lower air guide plate is arranged adjacent to the air guide section; the lower air guide plate can be rotated to a vertical position, when the lower air guide plate is at the vertical position, a front surface of the second inclined section forms a second air guide area, the second air guide area guides air flow rearward and downward. 10.The indoor unit of the air conditioner according to claim 1, characterized by, Further comprising: a heat exchanger, provided in the air outlet cavity, the heat exchanger is provided on a front side of the axial flow fan; a partition plate, provided in the housing, a through hole is formed in the partition plate, the through hole is correspondingly arranged with the axial flow fan; a flow guide grid, provided in the through hole; an air guide ring, provided on a side of the partition plate close to the axial flow fan, the axial flow fan is arranged in the air guide ring; the housing further comprises an air inlet cover, the air inlet cover is on a rear side of the axial flow fan; the air inlet cover comprises: a rear housing, the rear housing is vertically arranged; Side shells are obliquely arranged and surround the rear shell, and air inlets are formed in the side shells.

Images