Air conditioner indoor unit and air conditioner

Abstract

The utility model discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises a machine shell, an air duct component and a heat exchanger component. The machine shell is provided with an air inlet and an air outlet, the air duct component is arranged in the machine shell, the heat exchanger component is arranged in the machine shell and located between the air inlet and the air duct component, the heat exchanger component comprises a first heat exchange part and a second heat exchange part which are arranged front and back, and the first heat exchange part comprises a first heat exchange section and a second heat exchange section. The second heat exchange section is connected to the lower side of the first heat exchange section and located on the peripheral side of the wind wheel, and the second heat exchange section is in an arc shape bent in the direction away from the wind wheel. According to the air conditioner indoor unit, the second heat exchange section of the heat exchanger component is in the arc shape bent in the direction away from the wind wheel, the heat exchange area of the heat exchanger component can be increased, and therefore the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of air conditioning, in particular to an air-conditioning indoor unit and an air conditioner. Background Art

[0002] In the related art, the indoor unit of the air conditioner exchanges heat with the air flow by setting a heat exchanger component to adjust the indoor temperature. However, due to the structural limitations of the heat exchanger component, the heat exchange effect of the indoor unit of the air conditioner is not ideal. Therefore, improvement is needed. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide an air-conditioning indoor unit, by setting the heat exchanger of the air-conditioning indoor unit as two heat exchange parts arranged front and back, the heat exchange area can be increased, and the lower part of the first heat exchange part located on the front side is set to be an arc bent in the direction away from the wind wheel, which can increase the heat exchange area of ​​the first heat exchange part, thereby increasing the heat exchange area of ​​the entire heat exchanger component and improving the performance of the air-conditioning indoor unit.

[0004] The utility model also provides an air conditioner with the air conditioner indoor unit.

[0005] According to the first embodiment of the utility model, the indoor unit of the air conditioner comprises: a casing having an air inlet and an air outlet, wherein the air inlet is formed at the upper part of the casing, and the air outlet is formed at the front lower part of the casing; an air duct component is arranged in the casing; a heat exchanger component is arranged in the casing and is located between the air inlet and the air duct component, an air inlet space connected to the air inlet is defined between the heat exchanger component and the casing, and the heat exchanger component and the air duct component jointly define an air outlet duct; a wind wheel is arranged in the air duct, and the rotation axis of the wind wheel is along the left The heat exchanger component includes a first heat exchange part and a second heat exchange part, the first heat exchange part is located at the front side of the second heat exchange part, the upper end of the first heat exchange part is connected to the upper end of the second heat exchange part, the lower end of the first heat exchange part is spaced apart from the lower end of the second heat exchange part in the front-to-back direction and are both connected to the air duct component, the first heat exchange part includes a first heat exchange section and a second heat exchange section, the second heat exchange section is connected to the lower side of the first heat exchange section and is located at the outer peripheral side of the wind wheel, and the second heat exchange section is in the shape of an arc that bends in the direction away from the wind wheel.

[0006] According to the air-conditioning indoor unit of the embodiment of the utility model, the heat exchanger of the air-conditioning indoor unit is set as two heat exchange parts arranged front and back, so that the heat exchange area can be increased, and the lower part of the first heat exchange part located on the front side is set as an arc bent in the direction away from the wind wheel, so that the heat exchange area of ​​the first heat exchange part can be increased, thereby increasing the heat exchange area of ​​the entire heat exchanger component and improving the performance of the air-conditioning indoor unit.

[0007] According to the air conditioner indoor unit of the embodiment of the utility model, the second heat exchange section is concentrically arranged with the wind wheel; and / or the spacing between the second heat exchange section and the wind wheel is uniform and equal.

[0008] According to the air conditioner indoor unit of the embodiment of the utility model, the distance between the second heat exchange section and the wind wheel ranges from 5 mm to 25 mm.

[0009] According to the air conditioner indoor unit of the embodiment of the utility model, the central angle corresponding to the second heat exchange section is θ, and θ satisfies: 15°≤θ≤85°.

[0010] According to the air conditioner indoor unit of the embodiment of the utility model, the minimum distance between the first heat exchange section and the front side wall of the casing is greater than 5 mm; and / or the minimum distance between the second heat exchange section and the front side wall of the casing is greater than 5 mm.

[0011] According to the air conditioner indoor unit of the embodiment of the utility model, the lower end face of the second heat exchange section is the first end face, the first end face is located below the central axis of the wind wheel and the distance between the first end face and the central axis of the wind wheel in the up and down directions is A, A satisfies: 5mm≤A≤R, where R is the radius of the wind wheel.

[0012] According to the air conditioner indoor unit of the embodiment of the utility model, the first heat exchange section is a straight section.

[0013] According to the air conditioner indoor unit of the embodiment of the utility model, the first heat exchange section extends in a backward tilted direction from bottom to top, and the angle between the first heat exchange section and the up and down direction is φ, and φ satisfies: 15°≤φ≤55°.

[0014] According to the air conditioner indoor unit of the embodiment of the utility model, the first heat exchange section and the second heat exchange section are connected in a bending transition or in a smooth transition.

[0015] An air-conditioning indoor unit according to an embodiment of the second aspect of the utility model includes: an air-conditioning indoor unit according to an embodiment of the first aspect of the utility model.

[0016] According to the air conditioner of the embodiment of the utility model, by providing the above-mentioned air conditioner indoor unit, the heat exchange efficiency and heat exchange effect of the air conditioner indoor unit can be improved, and the performance of the air conditioner can be improved.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic diagram of an air conditioner indoor unit according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of an air-conditioning indoor unit according to another embodiment of the utility model.

[0021] Reference numerals:

[0022] 100. Air conditioner indoor unit;

[0023] 10. Casing; 11. Air inlet; 12. Air outlet; 13. Front side wall;

[0024] 20. Air duct components; 21. Air duct; 22. Air inlet space; 23. Wind wheel; 24. Electric auxiliary heating; 25. Air guide louver;

[0025] 30. heat exchanger component; 31. first heat exchange portion; 32. second heat exchange portion; 33. first heat exchange section; 34. second heat exchange section; 35. first end surface;

[0026] 50. Water tray. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] Reference below Figure 1-Figure 2 An air conditioner indoor unit 100 according to an embodiment of the present invention is described.

[0029] The air conditioner indoor unit 100 according to the embodiment of the utility model comprises: a casing 10 , an air duct component 20 , a heat exchanger component 30 and a wind wheel 23 .

[0030] The housing 10 has an air inlet 11 and an air outlet 12, the air duct component 20 is arranged in the housing 10, the heat exchanger component 30 is arranged in the housing 10 and is located between the air inlet 11 and the air duct component 20, an air inlet space 22 connected with the air inlet 11 is defined between the heat exchanger component 30 and the housing 10, the heat exchanger component 30 and the air duct component 20 jointly define an air duct 21, the air duct 21 connects the air inlet space 22 and the air outlet 12, and the wind wheel 23 is arranged in the air duct 21. When the air conditioner indoor unit 100 is working, the wind wheel 23 rotates to drive the air from the air inlet 11 into the air inlet space 22. In the process of the air flow flowing from the air inlet space 22 to the air duct 21, the air flow passes through the heat exchanger component 30 and exchanges heat with the heat exchanger component 30, and after being driven by the wind wheel 23 to flow through the air duct 21, it is discharged from the air outlet 12 to the room, so that the indoor temperature can be adjusted.

[0031] The wind wheel 23 may be a cross-flow wind wheel or a centrifugal wind wheel.

[0032] Optionally, the air conditioner indoor unit 100 may further include an electric auxiliary heater 24, which is fixedly mounted on the heat exchanger component 30 and may be located in the air duct 21 and on the upstream side of the wind wheel 23. When the air conditioner indoor unit 100 is heating, the electric auxiliary heater 24 may be turned on to improve the heating effect of the air conditioner.

[0033] Optionally, the air-conditioning indoor unit 100 may include a water receiving pan 50 , which is located below the heat exchanger component 30 , and is used to receive condensed water on the heat exchanger component 30 .

[0034] Optionally, the air-conditioning indoor unit 100 may include an air guide louver 25 , which is disposed in the air duct 21 and close to the air outlet 1212 , and is used to adjust the air outlet direction.

[0035] Among them, the air inlet 11 is formed at the upper part of the casing 10, the air outlet 12 is formed at the front lower part of the casing 10, the rotation axis of the wind wheel 23 extends in the left-right direction, and the heat exchanger component 30 includes a first heat exchange part 31 and a second heat exchange part 32 arranged in the front-to-back direction, the upper end of the first heat exchange part 31 is connected to the upper end of the second heat exchange part 32, the lower end of the first heat exchange part 31 is spaced apart from the lower end of the second heat exchange part 32 in the front-to-back direction, and the lower end of the first heat exchange part 31 and the lower end of the second heat exchange part 32 are both connected to the air duct component 20.

[0036] The air inlet 11 is formed on the upper part of the casing 10 in the following cases: for example, the air inlet 11 is formed on the top side of the casing 10 ; for another example, the air inlet 11 is formed on the top side and the front side of the casing 10 .

[0037] By configuring the heat exchanger component 30 to include a first heat exchange portion 31 and a second heat exchange portion 32 arranged in the front-to-back direction, so that the heat exchanger component 30 is generally in a "V" shape with the opening facing downward, the heat exchange area of ​​the heat exchanger component 30 can be increased, thereby improving the cooling / heating performance of the air-conditioning indoor unit 100.

[0038] Furthermore, the first heat exchange part 31 includes a first heat exchange section 33 and a second heat exchange section 34 arranged in the up-down direction, the second heat exchange section 34 is connected to the lower side of the first heat exchange section 33, and the second heat exchange section 34 is located on the outer peripheral side of the wind wheel 23, the casing 10 has a front side wall 13, in the front-to-back direction, the front side wall 13 is opposite to the first heat exchange part 31 and the front side wall 13 is located on the side of the first heat exchange part 31 away from the second heat exchange part 32, that is, the front side wall 13 of the casing 10 is located on the front side of the first heat exchange part 31.

[0039] The second heat exchange section 34 is in an arc shape that is bent in a direction away from the wind wheel 23. By making the second heat exchange section 34 in an arc shape that is bent in a direction away from the wind wheel 23, the heat exchange area of ​​the second heat exchange section 34 can be increased, the heat exchange efficiency of the heat exchanger component 30 can be increased, and the performance of the air conditioner indoor unit 100 can be improved. By setting the second heat exchange section 34 in an arc shape, the heat exchange area of ​​the second heat exchange section 34 can be increased compared to a straight heat exchange section, so that the heat exchange area of ​​the entire heat exchanger component 30 can be increased, which can improve the heat exchange efficiency and heat exchange effect, and improve the performance of the air conditioner indoor unit 100.

[0040] In addition, the heat exchange area and heat exchange efficiency of the heat exchanger component 30 of the embodiment of the utility model are improved, and the heat exchange performance of the heat exchanger component 30 can be ensured not to be reduced while reducing the size of the whole machine, which is conducive to miniaturization of the whole machine.

[0041] According to the air-conditioning indoor unit 100 of the embodiment of the utility model, the heat exchange area can be increased by setting the heat exchanger component 30 of the air-conditioning indoor unit 100 as two heat exchange parts arranged front to back, and the lower part of the first heat exchange part 31 located on the front side is set to an arc shape bent in the direction away from the wind wheel 23, so that the heat exchange area of ​​the first heat exchange part 31 can be increased, thereby increasing the heat exchange area of ​​the entire heat exchanger component 30 and improving the performance of the air-conditioning indoor unit 100.

[0042] According to some embodiments of the present invention, referring to Figure 1 and Figure 2, the second heat exchange section 34 is arranged concentrically with the wind wheel 23. The second heat exchange section 34 is arranged concentrically with the wind wheel 23, which means that the center of curvature of the arc-shaped second heat exchange section 34 coincides with the projection of the center of the wind wheel 23 on a plane perpendicular to the central axis of the wind wheel 23, for example, the projection of the center of curvature of the second heat exchange section 34 on a reference plane coincides with the projection of the central axis of the wind wheel 23 on the reference plane, and the reference plane is perpendicular to the central axis of the wind wheel 23. By arranging the second heat exchange section 34 to be concentric with the wind wheel 23, the spacing between the second heat exchange section 34 and the wind wheel 23 can be roughly uniform and equal in the circumferential direction of the wind wheel 23, so that the heat exchange efficiency and air volume are more uniform, and the performance of the air conditioner indoor unit 100 is better. The wind wheel 23 can be fully utilized, the air intake is better, and the heat exchange efficiency is higher.

[0043] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the distance between the second heat exchange section 34 and the wind wheel 23 is uniform and equal. By making the distance between the second heat exchange section 34 and the wind wheel 23 uniform and equal, the wind wheel 23 can be fully utilized, the air intake is better, and the heat exchange efficiency is higher.

[0044] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the spacing between the second heat exchange section 34 and the wind wheel 23 is c, and the value range of c is 5mm to 25mm. For example, the value of c can be 5mm, 10mm, 15mm, 20mm, 25mm, etc. By limiting the spacing range between the second heat exchange section 34 and the wind wheel 23 to 5mm to 25mm, the spacing range between the second heat exchange section 34 and the wind wheel 23 can be not less than 5mm, so that the second heat exchange section 34 and the wind wheel 23 will not affect each other, for example, it can avoid interference between the second heat exchange section 34 when the wind wheel 23 rotates, and it can avoid excessive noise when the airflow flows through the gap between the second heat exchange section 34 and the wind wheel 23 due to the small spacing between the second heat exchange section 34 and the wind wheel 23, affecting the user experience, and can reduce the risk of condensed water generated by the heat exchanger component 30 during cooling dripping onto the wind wheel 23.

[0045] By limiting the spacing between the second heat exchange section 34 and the wind wheel 23 to no more than 25 mm, it is possible to avoid the situation where the airflow disturbed by the wind wheel 23 during operation does not cover part of the space between the second heat exchange section 34 and the wind wheel 23 due to the excessive spacing between the second heat exchange section 34 and the wind wheel 23 (which will also affect the uneven flow of the airflow and the heat exchange effect of the second heat exchange section 34), so that the wind wheel 23 and the heat exchanger component 30 can be better matched, and the heat exchange effect of the heat exchanger component 30 and the working efficiency of the wind wheel 23 can be improved as a whole. In addition, it is also possible to ensure that the overall thickness of the air conditioner indoor unit 100 is not too large, so as to avoid the entire unit occupying too much volume.

[0046] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the center angle corresponding to the second heat exchange section 34 is θ, and θ satisfies: 15°≤θ≤85°. For example, the value of θ can be 15°, 25°, 45°, 65°, 85°. By making the center angle θ corresponding to the second heat exchange section 34 not less than 15°, it can be avoided that the second heat exchange section 34 is too small, which affects the efficiency of heat exchange, and it can be ensured that the second heat exchange section 34 has sufficient mechanical strength. By making the center angle θ corresponding to the second heat exchange section 34 not greater than 75°, the bending angle of the second heat exchange section 34 will not be too large, and the bottom edge of the second heat exchange section 34 will not be too low, causing the water inlet tray connected to the lower end of the second heat exchange section 34 to be too close to the air outlet 12, affecting the air output.

[0047] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the minimum distance between the first heat exchange section 33 and the front side wall 13 of the housing 10 is a, and a is greater than 5 mm. By limiting the minimum distance between the first heat exchange section 33 and the front side wall 13 of the housing 10 to be greater than 5 mm, the distance between the first heat exchange section 33 and the front side wall 13 of the housing 10 can be made larger, thereby ensuring that the volume of the air inlet space 22 is relatively sufficient, making the air inlet space 22 larger, and preventing the wind resistance from being too large, thereby avoiding excessive air conditioning noise caused by excessive wind resistance, and helping to reduce noise.

[0048] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the minimum distance between the second heat exchange section 34 and the front side wall 13 of the housing 10 is b, and b is greater than 5 mm. By limiting the minimum distance between the second heat exchange section 34 and the front side wall 13 of the housing 10 to greater than 5 mm, the distance between the second heat exchange section 34 and the front side wall 13 of the housing 10 can be made larger, thereby ensuring that the volume of the air inlet space 22 is relatively sufficient, making the air inlet space 22 larger, and preventing the wind resistance from being too large, thereby avoiding excessive air conditioning noise caused by excessive wind resistance, and helping to reduce noise.

[0049] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The lower end face of the second heat exchange section 34 is the first end face 35. The first end face 35 is located below the central axis of the wind wheel 23 and the vertical distance between the first end face 35 and the central axis of the wind wheel 23 is A, and A satisfies: 5mm≤A≤R, where R is the radius of the wind wheel 23. By making the vertical distance A between the lower end face of the second heat exchange section 34 and the central axis of the wind wheel 23 not less than 5mm, the space on the outer peripheral side of the wind wheel 23 can be fully utilized, so that the size of the second heat exchange section 34 in the vertical direction is larger, and the heat exchange area of ​​the first heat exchange part 31 is increased as much as possible.

[0050] In addition, when the water receiving pan 50 is arranged below the heat exchanger component 30, if the distance A between the lower end surface of the second heat exchange section 34 and the central axis of the wind wheel 23 in the vertical direction is too small, the position of the water receiving pan 50 will be too high, and the distance between the front side wall 13 and the wind wheel 23 will be increased to be sufficient to accommodate the water receiving pan 50, so that the distance of the air conditioner in the front-to-back direction will be increased, which is not conducive to a compact structure. By making the distance A between the lower end surface of the second heat exchange section 34 and the central axis of the wind wheel 23 in the vertical direction not less than 5 mm, the position of the water receiving pan 50 will not be too high, the distance of the air conditioner in the front-to-back direction will not be increased, and the overall structure of the air conditioner will be compact.

[0051] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The first heat exchange section 33 is a straight section, which can make the structure of the first heat exchange section 33 simple and convenient for processing and manufacturing.

[0052] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the first heat exchange section 33 extends in a direction from bottom to top and tilts backward, and the angle between the first heat exchange section 33 and the up-down direction is φ, and φ satisfies: 15°≤φ≤55°. For example, the value of φ can be 15°, 25°, 35°, 45°, 55°. By limiting the angle φ between the first heat exchange section 33 and the first direction to 15°≤φ≤55°, the angle φ between the first heat exchange section 33 and the first direction can be made not greater than 55°, thereby avoiding that the front-to-back distance of the first heat exchange section 33 is too large, resulting in a large front-to-back distance of the housing 10 and occupying too much space. By limiting the angle φ between the first heat exchange section 33 and the first direction to not less than 15°, it can be ensured that the first heat exchange section 33 has a certain inclination, and that there is a sufficiently large air inlet space 22 on the front side of the first heat exchange section 33, thereby avoiding that the air inlet space 22 is too small, resulting in too small air intake, and affecting the performance of the air conditioner indoor unit 100.

[0053] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 , the first heat exchange section 33 and the second heat exchange section 34 are connected by a bend transition or a smooth transition. Figure 1 The first heat exchange section 33 and the second heat exchange section 34 are connected by a bending transition. By setting the bending transition section between the first heat exchange section 33 and the second heat exchange section 34, the blank of the first heat exchange part 31 can be bent from the connection between the first heat exchange section 33 and the second heat exchange section 34, so as to facilitate the formation of the first heat exchange section 33 and the second heat exchange section 34, so that a bending transition connection is formed between the first heat exchange section 33 and the second heat exchange section 34, which is convenient for the processing and manufacturing of the first heat exchange part 31.

[0054] For example, refer to Figure 2 , and the first heat exchange section 33 and the second heat exchange section 34 can be connected in a smooth transition. By setting a smooth transition section between the first heat exchange section 33 and the second heat exchange section 34, the connection between the first heat exchange section 33 and the second heat exchange section 34 can avoid being abrupt or at an angle, reduce the noise generated by the airflow passing through the connection, and make the integrity of the first heat exchange part 31 better, and the heat exchange of each part of the first heat exchange part 31 is more uniform; in addition, by smoothly connecting the first heat exchange section 33 and the second heat exchange section 34, the first heat exchange section 33 and the second heat exchange section 34 can also be formed as one piece, which is convenient for processing and manufacturing.

[0055] Refer to the following Figure 1 The air conditioner indoor unit 100 according to some specific embodiments of the present invention is described.

[0056] In this embodiment, the air conditioner indoor unit 100 includes a casing 10 , an air duct component 20 , a heat exchanger component 30 and a wind wheel 23 .

[0057] Among them, the casing 10 includes an air inlet 11 and an air outlet 12, the air inlet 11 is formed at the upper part of the casing 10, the air outlet 12 is formed at the front lower part of the casing 10, the air duct component 20 is arranged in the casing 10, the heat exchanger component 30 is arranged in the casing 10 and is located between the air inlet 11 and the air duct component 20, an air inlet space 22 connected to the air inlet 11 is defined between the heat exchanger component 30 and the casing 10, the heat exchanger component 30 and the air duct component 20 jointly define an air outlet duct 21, the air duct 21 connects the air inlet space 22 and the air outlet 12, and a wind wheel 23 is arranged in the air duct 21.

[0058] The heat exchanger component 30 includes a first heat exchange portion 31 and a second heat exchange portion 32. The first heat exchange portion 31 is located in front of the second heat exchange portion 32, the upper end of the first heat exchange portion 31 is connected to the upper end of the second heat exchange portion 32, and the lower end of the first heat exchange portion 31 is spaced apart from the lower end of the second heat exchange portion 32 in the front-to-back direction and both are connected to the air duct component 20.

[0059] The first heat exchange section 31 includes a first heat exchange section 33 and a second heat exchange section 34, wherein the second heat exchange section 34 is connected to the lower side of the first heat exchange section 33 and is located on the outer peripheral side of the wind wheel 23. The first heat exchange section 33 is connected to the second heat exchange section 34 by a bend transition. The first heat exchange section 33 is a straight section, the second heat exchange section 34 is an arc curved in a direction away from the wind wheel 23 and is arranged concentrically with the wind wheel 23, the end face of the second heat exchange section 34 away from the first heat exchange section 33 is the first end face 35, and the distance between the first end face 35 and the central axis of the wind wheel 23 in the first direction is A, and A satisfies: 5mm≤A≤R, wherein R is the radius of the wind wheel 23. The minimum distance between the first heat exchange section 33 and the front side wall 13 is a, and a is greater than 5mm. The minimum distance between the second heat exchange section 34 and the front side wall 13 is b, and b is greater than 5mm. The distance between the second heat exchange section 34 and the wind wheel 23 is c, and the range of c is 5mm to 25mm.

[0060] The first heat exchange section 33 is a straight section. In the direction from the air duct component 20 to the heat exchanger component 30, the first heat exchange section 33 extends obliquely in a direction away from the front side wall 13, and the angle between the first heat exchange section 33 and the first direction is φ, and φ satisfies: 15°≤φ≤55°. The second heat exchange section 34 is concentrically arranged with the wind wheel 23, and the central angle corresponding to the second heat exchange section 34 is θ, and θ satisfies: 15°≤θ≤85°.

[0061] An air inlet space 22 connected to the air inlet 11 is defined between the heat exchanger component 30 and the casing 10. The heat exchanger component 30 and the air duct component 20 are arranged vertically and together define an air duct 21. The air duct 21 connects the air inlet space 22 and the air outlet 12. A wind wheel 23 is arranged in the air duct 21, and the rotation axis of the wind wheel 23 extends in the left-right direction.

[0062] Refer to the following Figure 2 The air conditioner indoor unit 100 according to some specific embodiments of the present invention is described.

[0063] In this embodiment, the air conditioner indoor unit 100 includes a casing 10 , an air duct component 20 , a heat exchanger component 30 and a wind wheel 23 .

[0064] Among them, the casing 10 includes an air inlet 11 and an air outlet 12, the air inlet 11 is formed at the upper part of the casing 10, the air outlet 12 is formed at the front lower part of the casing 10, the air duct component 20 is arranged in the casing 10, the heat exchanger component 30 is arranged in the casing 10 and is located between the air inlet 11 and the air duct component 20, an air inlet space 22 connected to the air inlet 11 is defined between the heat exchanger component 30 and the casing 10, the heat exchanger component 30 and the air duct component 20 jointly define an air outlet duct 21, the air duct 21 connects the air inlet space 22 and the air outlet 12, and a wind wheel 23 is arranged in the air duct 21.

[0065] The heat exchanger component 30 includes a first heat exchange portion 31 and a second heat exchange portion 32. The first heat exchange portion 31 is located in front of the second heat exchange portion 32, the upper end of the first heat exchange portion 31 is connected to the upper end of the second heat exchange portion 32, and the lower end of the first heat exchange portion 31 is spaced apart from the lower end of the second heat exchange portion 32 in the front-to-back direction and both are connected to the air duct component 20.

[0066] The first heat exchange section 31 includes a first heat exchange section 33 and a second heat exchange section 34, wherein the second heat exchange section 34 is connected to the lower side of the first heat exchange section 33 and is located on the outer peripheral side of the wind wheel 23. The first heat exchange section 33 is connected to the second heat exchange section 34 in a smooth transition. The first heat exchange section 33 is a straight section, the second heat exchange section 34 is an arc curved in a direction away from the wind wheel 23 and is arranged concentrically with the wind wheel 23, the end face of the second heat exchange section 34 away from the first heat exchange section 33 is the first end face 35, and the distance between the first end face 35 and the central axis of the wind wheel 23 in the first direction is A, and A satisfies: 5mm≤A≤R, where R is the radius of the wind wheel 23. The minimum distance between the first heat exchange section 33 and the front side wall 13 is a, and a is greater than 5mm. The minimum distance between the second heat exchange section 34 and the front side wall 13 is b, and b is greater than 5mm. The distance between the second heat exchange section 34 and the wind wheel 23 is c, and the range of c is 5mm to 25mm.

[0067] The first heat exchange section 33 is a straight section. In the direction from the air duct component 20 to the heat exchanger component 30, the first heat exchange section 33 extends obliquely in a direction away from the front side wall 13, and the angle between the first heat exchange section 33 and the first direction is φ, and φ satisfies: 15°≤φ≤55°. The second heat exchange section 34 is concentrically arranged with the wind wheel 23, and the central angle corresponding to the second heat exchange section 34 is θ, and θ satisfies: 15°≤θ≤85°.

[0068] An air inlet space 22 connected to the air inlet 11 is defined between the heat exchanger component 30 and the casing 10. The heat exchanger component 30 and the air duct component 20 are arranged vertically and together define an air duct 21. The air duct 21 connects the air inlet space 22 and the air outlet 12. A wind wheel 23 is arranged in the air duct 21, and the rotation axis of the wind wheel 23 extends in the left-right direction.

[0069] The air conditioner according to the second embodiment of the utility model includes: the air conditioner indoor unit 100 according to the first embodiment of the utility model.

[0070] Among them, the air conditioner can be a split wall-mounted air conditioner.

[0071] According to the air conditioner of the embodiment of the present utility model, by providing the above-mentioned air conditioner indoor unit 100, the heat exchange efficiency and heat exchange effect of the air conditioner indoor unit 100 can be improved, thereby improving the performance of the air conditioner.

[0072] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0073] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0074] In the description of the present invention, "plurality" means two or more.

[0075] In the description of the present invention, a first feature being “above” or “below” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact but are in contact with each other via another feature therebetween.

[0076] In the description of the present invention, a first feature “above”, “over” and “above” a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner indoor unit, characterized in that: include: A casing having an air inlet and an air outlet, wherein the air inlet is formed at an upper portion of the casing, and the air outlet is formed at a front lower portion of the casing; An air duct component is arranged in the casing; a heat exchanger component, disposed in the housing and located between the air inlet and the air duct component, wherein an air inlet space communicating with the air inlet is defined between the heat exchanger component and the housing, and the heat exchanger component and the air duct component jointly define an air duct; A wind wheel is arranged in the wind duct, and the rotation axis of the wind wheel extends in the left-right direction; Among them, the heat exchanger component includes a first heat exchange part and a second heat exchange part, the first heat exchange part is located on the front side of the second heat exchange part, the upper end of the first heat exchange part is connected to the upper end of the second heat exchange part, the lower end of the first heat exchange part and the lower end of the second heat exchange part are spaced apart in the front-to-back direction and are both connected to the air duct component, the first heat exchange part includes a first heat exchange section and a second heat exchange section, the second heat exchange section is connected to the lower side of the first heat exchange section and is located on the outer peripheral side of the wind wheel, and the second heat exchange section is in the shape of an arc bent in the direction away from the wind wheel.

2. The air conditioner indoor unit according to claim 1, characterized in that: The second heat exchange section is arranged concentrically with the wind wheel; and / or the spacing between the second heat exchange section and the wind wheel is uniform and equal.

3. The air conditioner indoor unit according to claim 1, characterized in that: The distance between the second heat exchange section and the wind wheel ranges from 5 mm to 25 mm.

4. The air conditioner indoor unit according to claim 1, characterized in that: The central angle corresponding to the second heat exchange section is θ, and θ satisfies: 15°≤θ≤85°.

5. The air conditioner indoor unit according to claim 1, characterized in that: The minimum distance between the first heat exchange section and the front side wall of the casing is greater than 5 mm; and / or the minimum distance between the second heat exchange section and the front side wall of the casing is greater than 5 mm.

6. The air conditioner indoor unit according to claim 1, characterized in that: The lower end face of the second heat exchange section is a first end face, which is located below the central axis of the wind wheel and has a vertical spacing of A from the central axis of the wind wheel, where A satisfies: 5mm≤A≤R, where R is the radius of the wind wheel.

7. The air conditioner indoor unit according to claim 1, characterized in that: The first heat exchange section is a straight section.

8. The air conditioner indoor unit according to claim 7, characterized in that: The first heat exchange section extends in a rearwardly inclined direction from bottom to top, and an angle φ between the first heat exchange section and the up-down direction is φ, and φ satisfies: 15°≤φ≤55°.

9. The air conditioner indoor unit according to claim 7, characterized in that: The first heat exchange section is connected to the second heat exchange section by a bending transition or a smooth transition.

10. An air conditioner, characterized in that: include: An air conditioning indoor unit according to any one of claims 1 to 9.

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