Air conditioner indoor unit and machine shell thereof

Abstract

The utility model discloses an air conditioner indoor unit and a machine shell thereof. The machine shell of the air conditioner indoor unit comprises a first side plate and a second side plate, the first side plate and the second side plate are oppositely arranged in the length direction of the machine shell, the first side plate is provided with a first air outlet, and the second side plate is provided with a second air outlet; the front panel and the rear plate are oppositely arranged in the width direction of the machine shell, and the front panel is provided with a third air outlet; and at least one of the bottom plate and the rear plate is provided with an air inlet. By means of the machine shell of the air conditioner indoor unit, the refrigerating and heating effects can be improved, the air flow directly blowing a user is effectively reduced, and the comfort level of the user is improved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to an indoor air conditioning unit and its casing. Background Technology

[0002] Air conditioning units can cool and heat, thereby changing the indoor temperature to make people feel more comfortable. Air conditioning units regulate airflow by blowing air, therefore, the design of the airflow duct is a crucial factor affecting user experience. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in related technologies. To this end, this utility model proposes an indoor air conditioning unit and its casing.

[0004] The casing of the indoor unit of this utility model includes: a first side plate and a second side plate, the first side plate and the second side plate being arranged opposite to each other in the length direction of the casing, the first side plate being provided with a first air outlet and the second side plate being provided with a second air outlet; a front panel and a rear panel, the front panel and the rear panel being arranged opposite to each other in the width direction of the casing, the front panel being provided with a third air outlet; and a bottom plate, at least one of the bottom plate and the rear panel being provided with an air inlet.

[0005] By utilizing the casing of the indoor air conditioner of this invention, the cooling and heating effect can be improved, the airflow directly blowing on users can be effectively reduced, and user comfort can be enhanced.

[0006] Optionally, the first air outlet is located on the upper part of the first side plate, and the second air outlet is located on the upper part of the second side plate; or each of the first air outlet and the second air outlet extends along the width direction of the housing, and the third air outlet extends along the length direction of the housing; or the rear plate includes a connected first upper plate and a first lower plate, the first lower plate is inclined and extends downward and forward from the first upper plate, and the first lower plate is provided with the air inlet.

[0007] Optionally, the housing of the indoor unit of the air conditioner further includes: a first air guide plate, which is rotatably disposed at the upper edge of the first air outlet of the first side plate between a first closed position and a first air guide position, the rotation axis of the first air guide plate extending along the width direction of the housing, wherein the angle between the first air guide plate located at the first air guide position and the vertical downward direction is greater than 0 degrees and less than or equal to 90 degrees; and a second air guide plate, which is rotatably disposed at the upper edge of the second air outlet of the second side plate between a second closed position and a second air guide position, the rotation axis of the second air guide plate extending along the width direction of the housing, wherein the angle between the second air guide plate located at the second air guide position and the vertical downward direction is greater than 0 degrees and less than or equal to 90 degrees.

[0008] Optionally, the housing of the indoor unit of the air conditioner further includes a third air guide plate, which is rotatably disposed at the lower edge of the third air outlet on the front panel between a third closed position and a third air guide position. The rotation axis of the third air guide plate extends along the length of the housing, wherein the angle between the third air guide plate located at the third air guide position and the vertical upward direction is greater than 0 degrees and less than or equal to 90 degrees.

[0009] Optionally, the front panel includes a second upper plate and a second lower plate connected together. The second upper plate is provided with the third air outlet, and the second lower plate is inclined. The lower edge of the second lower plate is located behind the upper edge of the second lower plate.

[0010] Optionally, the angle between the second lower plate and the vertically downward direction is greater than or equal to 30 degrees and less than or equal to 50 degrees.

[0011] The indoor unit of this utility model of an air conditioner includes: a housing, wherein the housing is the housing of the indoor unit of the air conditioner of this utility model; a fan, wherein the air outlet side of the fan is fitted with each of the first air outlet, the second air outlet and the third air outlet of the housing; and a heat exchanger, wherein the heat exchanger is located between the air inlet of the housing and the air inlet side of the fan, or the heat exchanger is located between the air outlet side of the fan and the third air outlet.

[0012] The indoor unit of this utility model has the advantages of good cooling and heating effect, effectively reducing the airflow directly blowing on users, and improving user comfort.

[0013] Optionally, the fan is an axial flow fan, the fan is inclined, and the air outlet side of the fan is arranged facing forward and upward so that the air outlet side of the fan cooperates with each of the first air outlet, the second air outlet and the third air outlet; or there are multiple fans, and the multiple fans are arranged along the length direction of the casing.

[0014] Optionally, the angle between the rotation axis of the fan and the horizontal plane is greater than or equal to 45 degrees and less than or equal to 60 degrees.

[0015] Optionally, the indoor unit of the air conditioner further includes a deflector, which covers the fan and is arranged at an angle.

[0016] Optionally, the heat exchanger is located between the air inlet and the air inlet side of the fan, wherein the first plane is perpendicular to the rotation axis of the fan, the projection of the heat exchanger onto the first plane along the extension direction of the rotation axis is the first projection, the projection of the air inlet of the shroud onto the first plane along the extension direction of the rotation axis is the second projection, the edge of the first projection is located inside the edge of the second projection or the edge of the first projection coincides with the edge of the second projection; and / or the minimum distance between the heat exchanger and the shroud along the extension direction of the rotation axis of the fan is L1, the diameter of the fan is D, and D / L1 is less than or equal to 18.

[0017] Optionally, the heat exchanger is located between the air inlet and the air inlet side of the fan. Each of the heat exchanger and the first lower plate portion of the rear plate of the casing is inclined in the same direction. The first lower plate portion is provided with the air inlet. The angle between the heat exchanger and the horizontal rearward direction is β1, and the angle between the first lower plate portion and the horizontal rearward direction is β2, wherein β1 is greater than or equal to 45 degrees and less than or equal to 60 degrees; and / or β2 / β1 is greater than or equal to 0.8 and less than or equal to 1.2.

[0018] Optionally, the heat exchanger is located between the air inlet and the air inlet side of the fan. The heat exchanger is disposed opposite to the fan and includes: a main body, each of the main body and the fan being inclined in the same direction, the lower end of the main body being located in front of the upper end of the main body; and a bent portion, the bent portion being inclined, the lower end of the bent portion being located behind the upper end of the bent portion, and the lower end of the bent portion contacting the lower end of the main body.

[0019] Optionally, the indoor unit of the air conditioner further includes a water collection tray, which is located directly below the lower end of the bent portion and the lower end of the main body. Attached Figure Description

[0020] Figure 1 This is a partial structural schematic diagram of an indoor air conditioner unit according to an embodiment of the present utility model;

[0021] Figure 2 This is a front view of an indoor air conditioner unit according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded view of an indoor air conditioner unit according to an embodiment of the present invention;

[0023] Figure 4 This is a side view of an indoor air conditioner unit according to an embodiment of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of an indoor air conditioner unit according to an embodiment of the present utility model;

[0025] Figure 6 This is an exploded view of an indoor air conditioner unit according to another embodiment of the present invention;

[0026] Figure 7 This is a side view of an indoor air conditioning unit according to another embodiment of the present invention. Detailed Implementation

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The casing 1 of an indoor air conditioner unit 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. Figures 1-7 As shown, the housing 1 of the air conditioner indoor unit 100 according to an embodiment of the present utility model includes a first side plate 11, a second side plate 12, a front panel 13, a rear panel 14, and a bottom plate 15.

[0029] The first side panel 11 and the second side panel 12 are arranged opposite each other along the length of the housing 1. The first side panel 11 is provided with a first air outlet 111, and the second side panel 12 is provided with a second air outlet 121. The front panel 13 and the rear panel 14 are arranged opposite each other along the width of the housing 1. The front panel 13 is provided with a third air outlet 131. At least one of the bottom plate 15 and the rear panel 14 is provided with an air inlet 16.

[0030] According to an embodiment of the present invention, the casing 1 of the indoor air conditioner 100 is provided with multiple air outlets (a first air outlet 111, a second air outlet 121, and a third air outlet 131). This not only increases the air outlet area to increase the air volume, but also increases the air outlet direction, so that the cold and hot air blown out by the indoor air conditioner 100 can more fully and quickly cover the entire room, thereby improving the cooling and heating effect. Especially when the length of the casing 1 is small, the first air outlet 111 and the second air outlet 121 can effectively increase the air volume, thereby improving the cooling and heating effect.

[0031] Furthermore, according to this embodiment of the present invention, the casing 1 of the indoor unit 100 of the air conditioner can achieve side airflow by providing a first air outlet 111 on the first side plate 11 and a second air outlet 121 on the second side plate 12, so as to avoid cold and hot air blown from the first air outlet 111 and the second air outlet 121 directly blowing on the user. This can effectively reduce the airflow directly blowing on the user, thereby making the user feel more comfortable.

[0032] Therefore, by utilizing the casing 1 of the air conditioner indoor unit 100 according to the present utility model embodiment, the cooling and heating effect can be improved, the airflow directly blowing on the user can be effectively reduced, and the user's comfort can be enhanced.

[0033] like Figures 1-7 As shown, the indoor unit 100 of the air conditioner according to an embodiment of the present invention includes a casing 1, a fan 2, and a heat exchanger 3. The air outlet side of the fan 2 is fitted with each of the first air outlet 111, the second air outlet 121, and the third air outlet 131 of the casing 1. The heat exchanger 3 is located between the air inlet 16 of the casing 1 and the air inlet side of the fan 2, or the heat exchanger 3 is located between the air outlet side of the fan 2 and the third air outlet 131.

[0034] Therefore, the air conditioner indoor unit 100 according to the present utility model has advantages such as good cooling and heating effect, effectively reducing the airflow directly blowing on users, and improving user comfort.

[0035] like Figures 1-7 As shown, the housing 1 includes a first side plate 11, a second side plate 12, a front panel 13, a rear panel 14, and a bottom plate 15.

[0036] The first side panel 11 and the second side panel 12 are arranged opposite each other along the length of the housing 1. The first side panel 11 is provided with a first air outlet 111, and the second side panel 12 is provided with a second air outlet 121. The front panel 13 and the rear panel 14 are arranged opposite each other along the width of the housing 1. The front panel 13 is provided with a third air outlet 131. At least one of the bottom plate 15 and the rear panel 14 is provided with an air inlet 16.

[0037] When the indoor unit 100 of the air conditioner is in the installation state, the length of the casing 1 can be consistent with the left-right direction, the width of the casing 1 can be consistent with the front-back direction, and the height of the casing 1 can be consistent with the up-down direction. (Left-right direction as...) Figure 2 As shown by arrow A in the image, the forward and backward directions are as follows: Figure 4 As shown by arrow B in the image, the vertical direction is as follows: Figure 2 Arrow C is shown in the diagram.

[0038] like Figures 1-4As shown, the first air outlet 111 is located on the upper part of the first side plate 11, and the second air outlet 121 is located on the upper part of the second side plate 12. This facilitates the cooperation between the first air outlet 111 and the second air outlet 121 and the air outlet side of the fan 2, thereby facilitating the installation of the fan 2 inside the housing 1.

[0039] Optionally, each of the first air outlet 111 and the second air outlet 121 extends along the width direction of the casing 1 to further increase the air outlet area of ​​the first air outlet 111 and the second air outlet 121. This allows the cold and hot air blown out by the indoor unit 100 to cover the entire room more fully and quickly, thereby further improving the cooling and heating effect.

[0040] The third air outlet 131 extends along the length of the casing 1 to further increase the air outlet area. This allows the cold and hot air blown out by the indoor unit 100 to cover the entire room more fully and quickly, thereby further improving the cooling and heating effect.

[0041] like Figure 1 , Figure 3 and Figure 4 As shown, the rear plate 14 includes a first upper plate portion 141 and a first lower plate portion 142, which are connected. For example, the lower edge of the first upper plate portion 141 is connected to the upper edge of the first lower plate portion 142. Optionally, the first upper plate portion 141 and the first lower plate portion 142 are integrally formed.

[0042] The first lower plate portion 142 is inclined, and the lower edge of the first lower plate portion 142 is located in front of the upper edge of the first lower plate portion 142. That is, the first lower plate portion 142 extends downward and forward from the first upper plate portion 141. The first lower plate portion 142 is provided with an air inlet 16. The base plate 15 may also be provided with an air inlet 16 in order to increase the air intake of the indoor unit 100 of the air conditioner.

[0043] like Figure 2 and Figure 3 As shown, the housing 1 further includes a first air guide plate 171 and a second air guide plate 172. The first air guide plate 171 is rotatably disposed at the upper edge of the first air outlet 111 of the first side plate 11 between a first closed position and a first air guiding position. The second air guide plate 172 is rotatably disposed at the upper edge of the second air outlet 121 of the second side plate 12 between a second closed position and a second air guiding position.

[0044] The rotation axis of the first air guide plate 171 extends along the width direction of the housing 1, and the rotation axis of the second air guide plate 172 also extends along the width direction of the housing 1. The angle between the first air guide plate 171 at the first air guide position and the vertically downward direction is greater than 0 degrees and less than or equal to 90 degrees. The angle between the second air guide plate 172 at the second air guide position and the vertically downward direction is greater than 0 degrees and less than or equal to 90 degrees.

[0045] In other words, the first air guide plate 171 is installed on the first side plate 11. When the first air guide plate 171 is in the first closed position, its upper end is rotatably connected to the first side plate 11, and its upper end is located at the upper edge of the first air outlet 111. When the first air guide plate 171 is in the first air guiding position, it extends downwards or horizontally from the first side plate 11. Thus, during heating, the first air guide plate 171 can make the hot air flow downwards to form a "carpet wind," thereby allowing the hot air to cover the entire room more fully and quickly, further improving the heating effect.

[0046] The second air guide plate 172 is installed on the second side plate 12. When the second air guide plate 172 is in the second closed position, its upper end is rotatably connected to the second side plate 12, and its upper end is located at the upper edge of the second air outlet 121. When the second air guide plate 172 is in the second air guiding position, it extends downwards or horizontally from the second side plate 12. Therefore, during heating, the second air guide plate 172 allows hot air to flow downwards to form a "carpet wind," thereby enabling the hot air to cover the entire room more fully and quickly, further improving the heating effect.

[0047] like Figure 1 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the housing 1 further includes a third air guide plate 173, which is rotatably disposed at the lower edge of the third air outlet 131 of the front panel 13 between a third closed position and a third air guide position. The rotation axis of the third air guide plate 173 extends along the length of the housing 1. The angle between the third air guide plate 173 located in the third air guide position and the vertically upward direction is greater than 0 degrees and less than or equal to 90 degrees.

[0048] In other words, the third air guide plate 173 is installed on the front panel 13. When the third air guide plate 173 is in the third closed position, its lower end is rotatably connected to the front panel 13, and its lower end is located at the lower edge of the third air outlet 131. When the third air guide plate 173 is in the third air guide position, it extends obliquely upward and forward or horizontally from the front panel 13. Thus, during cooling, the third air guide plate 173 can make the cold air flow upward and forward, thereby not only avoiding direct cold air blowing on the user to further improve user comfort, but also allowing the cold air to cover the entire room more fully and quickly to further improve the cooling effect.

[0049] like Figure 1 , Figure 3 and Figure 4 As shown, the front panel 13 includes a second upper plate portion 132 and a second lower plate portion 133, which are connected together. For example, the lower edge of the second upper plate portion 132 is connected to the upper edge of the second lower plate portion 133. Optionally, the second upper plate portion 132 and the second lower plate portion 133 are integrally formed.

[0050] The second upper plate portion 132 is provided with a third air outlet 131. The second lower plate portion 133 is inclined, and the lower edge of the second lower plate portion 133 is located behind the upper edge of the second lower plate portion 133. That is, the second lower plate portion 133 extends downward and backward from the second upper plate portion 132, that is, the second lower plate portion 133 is inclined inward.

[0051] The airflow passing through the area between the front panel 13 and the heat exchanger 3 contributes little to the heat exchange efficiency (heat transfer rate) of the heat exchanger 3. By extending the second lower plate portion 133 downward and backward from the second upper plate portion 132, the area between the front panel 13 and the heat exchanger 3 can be effectively reduced, thereby reducing the airflow passing through this area. This allows more airflow to pass through the heat exchanger 3, thereby improving the heat exchange efficiency of the heat exchanger 3 and ultimately improving the cooling and heating performance of the indoor air conditioning unit 100.

[0052] Optionally, the angle β3 between the second lower plate portion 133 and the vertically downward direction is greater than or equal to 30 degrees and less than or equal to 50 degrees, that is, the inward inclination angle of the second lower plate portion 133 is greater than or equal to 30 degrees and less than or equal to 50 degrees. This not only allows more airflow to pass through the heat exchanger 3 to further improve the heat exchange efficiency of the heat exchanger 3, but also avoids the whistling of airflow caused by the insufficient gap between the front panel 13 and the heat exchanger 3.

[0053] When the angle between the second lower plate portion 133 and the vertically downward direction is less than 30 degrees, the area between the front panel 13 and the heat exchanger 3 will be larger, thereby reducing the amount of airflow passing through the heat exchanger 3. When the angle between the second lower plate portion 133 and the vertically downward direction is greater than 50 degrees, the gap between the front panel 13 and the heat exchanger 3 will be too small, resulting in airflow whistling and increasing the noise of the indoor unit 100 of the air conditioner.

[0054] Alternatively, the angle β3 between the second lower plate portion 133 and the vertically downward direction is greater than or equal to 35 degrees and less than or equal to 40 degrees, that is, the inward inclination angle of the second lower plate portion 133 is greater than or equal to 35 degrees and less than or equal to 40 degrees. This allows more airflow to pass through the heat exchanger 3, thereby further improving the heat exchange efficiency of the heat exchanger 3, and further avoiding airflow whistling caused by the insufficient gap between the front panel 13 and the heat exchanger 3.

[0055] like Figure 1 , Figure 3 and Figure 6 As shown, the fan 2 is an axial flow fan, and the fan 2 is set at an angle. The air outlet side of the fan 2 is set facing forward and upward so that the air outlet side of the fan 2 can be matched with each of the first air outlet 111, the second air outlet 121 and the third air outlet 131.

[0056] Axial flow fans have the advantages of low pressure and high air volume. By making fan 2 an axial flow fan, the air volume of fan 2 can be greatly increased, the energy consumption of fan 2 (air conditioner indoor unit 100) can be reduced, and the cold and hot air blown out by air conditioner indoor unit 100 can cover the entire room more fully and quickly, thereby further improving the cooling and heating effect of air conditioner indoor unit 100.

[0057] Furthermore, by tilting the fan 2, it can be better aligned with the first air outlet 111, the second air outlet 121, and the third air outlet 131, thereby reducing airflow energy loss. This allows the cool and hot air blown out by the indoor unit 100 to cover the entire room more fully and quickly, further improving the cooling and heating performance of the indoor unit 100.

[0058] like Figure 6 As shown, there are multiple fans 2, which are arranged along the length of the casing 1. This can further increase the air volume delivered by the fans 2, so that the cold and hot air blown out by the indoor unit 100 can more fully and quickly cover the entire room, thereby further improving the cooling and heating effect of the indoor unit 100.

[0059] Optionally, the angle β4 between the rotation axis of the fan 2 and the horizontal plane is greater than or equal to 45 degrees and less than or equal to 60 degrees. This can further improve the air outlet efficiency of the fan 2, thereby further improving the cooling and heating effect of the indoor unit 100. Further optionally, the angle β4 between the rotation axis of the fan 2 and the horizontal plane is greater than or equal to 51 degrees and less than or equal to 54 degrees. This can further improve the air outlet efficiency of the fan 2, thereby further improving the cooling and heating effect of the indoor unit 100.

[0060] like Figure 1 as well as Figures 3-7 As shown, the indoor unit 100 of the air conditioner further includes a guide shroud 4, which covers the fan 2 and is inclined. That is, the guide shroud 4 has a guide cavity 41, and the fan 2 is located within the guide cavity 41. By setting the guide shroud 4, the airflow can be concentrated, thereby further improving the working efficiency and air volume of the fan 2. This allows the cold and hot air blown out by the indoor unit 100 to more fully and quickly cover the entire room, further improving the cooling and heating effect of the indoor unit 100.

[0061] Optionally, the angle between the fan 2 and the horizontal plane is equal to the angle between the deflector 4 and the horizontal plane. For example, the centerline of the deflector 4 coincides with the rotation axis of the fan 2.

[0062] like Figure 1 , Figure 3 and Figure 4 As shown, the heat exchanger 3 is located between the air inlet 16 and the air inlet side of the fan 2. For example, the heat exchanger 3 is located between the air inlet 16 and the air inlet end 42 (air inlet) of the flow guide 4. The air inlet end 42 has the air inlet of the flow guide 4.

[0063] The first plane is perpendicular to the rotation axis of the fan 2. The projection of the heat exchanger 3 along the extension direction of the rotation axis onto the first plane is the first projection. The projection of the air inlet of the guide shroud 4 along the extension direction of the rotation axis of the fan 2 onto the first plane is the second projection, that is, the projection of the inner edge of the air inlet end 42 of the guide shroud 4 along the extension direction of the rotation axis of the fan 2 onto the first plane is the second projection. The edge of the first projection is located inside the edge of the second projection, or the edge of the first projection coincides with the edge of the second projection.

[0064] In other words, the edge of the heat exchanger 3 is located inside the inner edge of the air inlet end 42 of the air guide shroud 4, or the edge of the heat exchanger 3 is flush with the inner edge of the air inlet end 42 of the air guide shroud 4. This can effectively improve the heat exchange efficiency of the heat exchanger 3, thereby effectively improving the cooling and heating effect of the indoor unit 100 of the air conditioner.

[0065] The minimum distance between heat exchanger 3 and flow guide 4 in the direction extending from the rotation axis of fan 2 is L1, and the diameter of fan 2 is D. D / L1 (the ratio of the diameter D of fan 2 to the minimum distance L1) is less than or equal to 18. This can prevent whistling from occurring in the gap between heat exchanger 3 and flow guide 4 due to the minimum distance L1 being too small.

[0066] Optionally, D / L1 is greater than or equal to 11 and less than or equal to 14. This can further prevent whistling from occurring in the gap between the heat exchanger 3 and the shroud 4 due to an excessively small minimum distance L1.

[0067] like Figure 1 , Figure 3 and Figure 4 As shown, each of the heat exchanger 3 and the first lower plate portion 142 of the rear plate 14 is inclined in the same direction, and the first lower plate portion 142 is provided with an air inlet 16. The angle between the heat exchanger 3 and the horizontal rearward direction is β1, and the angle between the first lower plate portion 142 and the horizontal rearward direction is β2.

[0068] Optionally, β1 is greater than or equal to 45 degrees and less than or equal to 60 degrees. This prevents condensate from dripping vertically from the heat exchanger 3, thus preventing condensate from flowing outside the air conditioner indoor unit 100 and corroding the ceiling, walls, etc. of the adjacent air conditioner indoor unit 100.

[0069] Optionally, β2 / β1 is greater than or equal to 0.8 and less than or equal to 1.2. This not only allows the casing 1 and the indoor unit 100 of the air conditioner to have a larger air intake area and air output, but also allows the heat exchanger 3 to have an appropriate air intake angle, effectively improving the heat exchange efficiency of the heat exchanger 3.

[0070] When β2 / β1 is less than 0.8, the air intake area of ​​the casing 1 and the indoor unit 100 will be small, and the air output will be insufficient. When β2 / β1 is greater than 1.2, the air intake angle of the heat exchanger 3 will be large, which will lead to a decrease in the heat exchange efficiency of the heat exchanger 3.

[0071] Optionally, β2 / β1 is greater than or equal to 0.91 and less than or equal to 0.99. This not only allows the casing 1 and the indoor unit 100 of the air conditioner to have a larger air intake area and air output, but also allows the heat exchanger 3 to have an appropriate air intake angle, effectively improving the heat exchange efficiency of the heat exchanger 3.

[0072] like Figure 1 as well as Figures 3-5As shown, the heat exchanger 3 and the fan 2 are arranged opposite each other, that is, the heat exchanger 3 and the fan 2 are arranged opposite each other in the extension direction of the rotation axis of the fan 2. The heat exchanger 3 includes a main body 31 and a bent part 32. Each of the main body 31 and the fan 2 is inclined and the inclination direction is the same. Specifically, the lower end 311 of the main body 31 is located in front of the upper end 312 of the main body 31, the lower end of the fan 2 is located in front of the upper end of the fan 2, and the lower end 43 of the guide shroud 4 is located in front of the upper end 44 of the guide shroud 4.

[0073] The bent portion 32 is inclined, and its lower end 321 is located behind the upper end 322 of the bent portion 32. The lower end 321 of the bent portion 32 contacts the lower end 311 of the main body 31. That is, the heat exchanger 3 is generally V-shaped or U-shaped. This not only effectively increases the heat exchange area of ​​the heat exchanger 3 to improve its heat exchange efficiency, but also allows the condensate from the heat exchanger 3 to collect at the lower end 321 of the bent portion 32 and the lower end 311 of the main body 31, making the condensate easier to collect.

[0074] Optionally, the lower end 321 of the bent portion 32 is connected to the lower end 311 of the main body portion 31 in order to improve the structural strength and stability of the heat exchanger 3.

[0075] like Figure 1 , Figure 3 and Figure 4 As shown, the indoor unit 100 of the air conditioner includes a drip tray 5, which is located directly below the lower end 321 of the bent portion 32 and the lower end 311 of the main body 31. This allows the condensate from the heat exchanger 3 to be collected in the drip tray 5, thereby preventing condensate from flowing outside the indoor unit 100 and corroding the ceiling, walls, etc., adjacent to the indoor unit 100.

[0076] By collecting the condensate from the heat exchanger 3 at the lower end 321 of the bend 32 and the lower end 311 of the main body 31, the size of the drip tray 5 can be reduced to prevent it from blocking the air inlet 16, thereby reducing the air intake of the indoor unit 100. Specifically, by collecting the condensate from the heat exchanger 3 at the lower end 321 of the bend 32 and the lower end 311 of the main body 31, the size of the drip tray 5 in the width direction (front-back direction) of the casing 1 can be reduced.

[0077] like Figure 6 and Figure 7 As shown, heat exchanger 3 is located between the air outlet side of fan 2 and the third air outlet 131, and heat exchanger 3 is arranged opposite to fan 2. Specifically, heat exchanger 3 is arranged at an angle, with the upper end of heat exchanger 3 located behind the lower end of heat exchanger 3. Water receiving tray 5 is located directly below the lower end of heat exchanger 3.

[0078] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0079] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" 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, an electrical connection, or a connection that allows communication between the components; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0082] In this utility model, the terms "one embodiment," "some embodiments," "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. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0083] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A casing for an indoor unit of an air conditioner, characterized in that, include: A first side plate and a second side plate are arranged opposite to each other in the length direction of the casing. The first side plate is provided with a first air outlet and the second side plate is provided with a second air outlet. A front panel and a rear panel, the front panel and the rear panel being disposed opposite each other in the width direction of the housing, the front panel being provided with a third air outlet; and The base plate, at least one of the base plate and the rear plate is provided with an air inlet.

2. The casing of the indoor unit of the air conditioner according to claim 1, characterized in that, The first air outlet is located on the upper part of the first side panel, and the second air outlet is located on the upper part of the second side panel; or Each of the first and second air outlets extends along the width direction of the housing, and the third air outlet extends along the length direction of the housing; or The rear plate includes a first upper plate portion and a first lower plate portion connected together. The first lower plate portion is inclined and extends downward and forward from the first upper plate portion. The first lower plate portion is provided with the air inlet.

3. The casing of the indoor unit of the air conditioner according to claim 1 or 2, characterized in that, Further includes: The first air guide plate is rotatably disposed at the upper edge of the first air outlet of the first side plate between the first closed position and the first air guide position. The rotation axis of the first air guide plate extends along the width direction of the housing. The angle between the first air guide plate located at the first air guide position and the vertical downward direction is greater than 0 degrees and less than or equal to 90 degrees. The second air guide plate is rotatably disposed at the upper edge of the second air outlet of the second side plate between the second closed position and the second air guide position. The rotation axis of the second air guide plate extends along the width direction of the housing. The angle between the second air guide plate located at the second air guide position and the vertical downward direction is greater than 0 degrees and less than or equal to 90 degrees.

4. The casing of the indoor unit of the air conditioner according to claim 1 or 2, characterized in that, The device further includes a third air guide plate, which is rotatably disposed at the lower edge of the third air outlet on the front panel between a third closed position and a third air guide position. The rotation axis of the third air guide plate extends along the length of the housing, wherein the angle between the third air guide plate at the third air guide position and the vertical upward direction is greater than 0 degrees and less than or equal to 90 degrees.

5. The casing of the indoor unit of the air conditioner according to claim 1, characterized in that, The front panel includes a second upper plate and a second lower plate connected together. The second upper plate is provided with the third air outlet. The second lower plate is inclined and the lower edge of the second lower plate is located behind the upper edge of the second lower plate.

6. The casing of the indoor unit of the air conditioner according to claim 5, characterized in that, The angle between the second lower plate and the vertical downward direction is greater than or equal to 30 degrees and less than or equal to 50 degrees.

7. An indoor unit for an air conditioner, characterized in that, include: The housing is the housing of the indoor air conditioning unit according to any one of claims 1-6; A fan, wherein the air outlet side of the fan is fitted with each of the first air outlet, the second air outlet, and the third air outlet of the housing; and A heat exchanger is located between the air inlet of the casing and the air inlet side of the fan, or the heat exchanger is located between the air outlet side of the fan and the third air outlet.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The fan is an axial flow fan, and the fan is installed at an angle with its outlet side facing forward and upward, so that the outlet side of the fan can cooperate with each of the first outlet, the second outlet, and the third outlet; or There are multiple fans, and the multiple fans are arranged along the length of the casing.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The angle between the rotation axis of the fan and the horizontal plane is greater than or equal to 45 degrees and less than or equal to 60 degrees.

10. The indoor unit of the air conditioner according to claim 8, characterized in that, The device further includes a flow guide shroud, which is disposed over the fan and is inclined.

11. The indoor unit of the air conditioner according to claim 10, characterized in that, The heat exchanger is located between the air inlet and the air inlet side of the fan, wherein A first plane is perpendicular to the rotation axis of the fan. The projection of the heat exchanger onto the first plane along the extension direction of the rotation axis is the first projection. The projection of the air inlet of the guide shroud onto the first plane along the extension direction of the rotation axis is the second projection. The edge of the first projection is located inside the edge of the second projection, or the edge of the first projection coincides with the edge of the second projection; and / or The minimum distance between the heat exchanger and the guide shroud in the direction extending from the rotation axis of the fan is L1, and the diameter of the fan is D, where D / L1 is less than or equal to 18.

12. The indoor unit of the air conditioner according to claim 7, characterized in that, The heat exchanger is located between the air inlet and the air inlet side of the fan. Each of the heat exchanger and the first lower plate portion of the rear plate of the casing is inclined in the same direction. The first lower plate portion has the air inlet. The angle between the heat exchanger and the horizontal rearward direction is β1, and the angle between the first lower plate portion and the horizontal rearward direction is β2. β1 is greater than or equal to 45 degrees and less than or equal to 60 degrees; and / or β2 / β1 is greater than or equal to 0.8 and less than or equal to 1.

2.

13. The indoor unit of the air conditioner according to claim 7, characterized in that, The heat exchanger is located between the air inlet and the air inlet side of the fan, and the heat exchanger is disposed opposite to the fan and includes: The main body, and each of the main body and the fan, are inclined in the same direction, with the lower end of the main body located in front of the upper end of the main body; and The bending portion is inclined, and the lower end of the bending portion is located behind the upper end of the bending portion, and the lower end of the bending portion is in contact with the lower end of the main body portion.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, It further includes a water receiving tray, which is located directly below the lower end of the bent portion and the lower end of the main body portion.

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