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 first heat exchange section is in an arc shape bent backwards. According to the air conditioner indoor unit, the first heat exchange section of the heat exchanger component is arranged to be in the arc shape bent backwards, the heat exchange area of the heat exchanger component can be increased, and therefore the heat exchange efficiency is improved; meanwhile, the size of the air inlet space is increased, the air inlet amount is increased, and the performance of the air conditioner indoor unit is better.

Description

Technical Field

[0001] The utility model relates to the technical 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 upper part of the first heat exchange part located on the front side is set to an arc shape bent toward the rear, 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 at the same time, the distance between the first heat exchange part and the front side wall of the casing can be increased, thereby increasing the volume of the air intake space and the air intake amount, so that the heat exchange efficiency and heat exchange effect can be improved, and the performance of the air-conditioning indoor unit can be improved.

[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 communicating with 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 a rotating shaft of the wind wheel is The line extends in the left-right direction; wherein 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 on the outer peripheral side of the wind wheel, and the first heat exchange section is in an arc shape that bends backward.

[0006] According to the air-conditioning indoor unit of the embodiment of the utility model, the heat exchanger is set as two heat exchange parts arranged front and back, so that the heat exchange area can be increased, and the upper part of the first heat exchange part located on the front side is set as an arc bent toward the rear, 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 at the same time, the distance between the first heat exchange part and the front side wall of the casing can be increased, so that the volume of the air inlet space can be increased, and the air intake amount can be increased, which can improve the heat exchange efficiency and heat exchange effect, and enhance the performance of the air-conditioning indoor unit.

[0007] According to some embodiments of the present utility model, the transverse cross-section of the first heat exchange section is a first cross-section, the first cross-section is perpendicular to the left and right directions, the rear side of the first cross-section constitutes a first side, the first side is formed in an arc shape, the lower end point of the first side is a first end point, the tangent of the first side at the first end point is a first tangent, and the angle between the first tangent and the up and down directions is β, and β satisfies: 5°≤β≤45°.

[0008] According to some embodiments of the present invention, 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.

[0009] According to some embodiments of the present invention, the distance between the second heat exchange section and the wind wheel ranges from 5 mm to 25 mm.

[0010] According to some embodiments of the present invention, the lower end surface of the second heat exchange section is a second end surface, which is located below the central axis of the wind wheel and has a vertical spacing of A between the second end surface and the central axis of the wind wheel, A satisfying: 5mm≤A≤R, where R is the radius of the wind wheel.

[0011] According to some embodiments of the present invention, the second heat exchange section is a straight section.

[0012] According to some embodiments of the present invention, the first heat exchange section is connected to the second heat exchange section by a bending transition or a smooth transition.

[0013] According to some embodiments of the present invention, the first heat exchange section is connected to the second heat exchange section in a smooth transition, a transition section is connected between the first heat exchange section and the second heat exchange section, the transition section is located on the outer peripheral side of the wind wheel and is in an arc shape that is bent in a direction away from the wind wheel.

[0014] According to some embodiments of the present invention, the transition section is arranged concentrically with the wind wheel.

[0015] According to some embodiments of the present invention, the central angle corresponding to the transition section is θ, and θ satisfies: 5°≤θ≤75°.

[0016] According to some embodiments of the present invention, the spacing between the transition section and the wind wheel ranges from 5 mm to 25 mm.

[0017] An air conditioner according to an embodiment of the second aspect of the utility model includes: an air conditioner indoor unit according to the embodiment of the first aspect of the utility model.

[0018] 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.

[0019] 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

[0020] 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:

[0021] Figure 1 is a schematic diagram of an air conditioner indoor unit according to an embodiment of the utility model;

[0022] Figure 2 It is a schematic diagram of an air-conditioning indoor unit according to another embodiment of the utility model.

[0023] Reference numerals:

[0024] Air conditioner indoor unit 100;

[0025] 10. Casing; 11. Air inlet; 12. Air outlet; 13. Front side wall;

[0026] 20. Air duct components; 21. Air duct; 22. Air inlet space; 23. Wind wheel; 24. Electric auxiliary heating; 25. Air guide louver;

[0027] 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 cross section; 36. first side edge; 37. first end point; 38. first tangent line; 39. second end face; 40. transition section;

[0028] 50. Water tray. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] Reference below Figure 1-Figure 2 An air conditioner indoor unit 100 according to an embodiment of the present invention is described.

[0032] refer to Figure 1 and Figure 2 According to an embodiment of the present utility model, 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.

[0033] 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.

[0034] The wind wheel 23 may be a cross-flow wind wheel 23 or a centrifugal wind wheel 23 .

[0035] 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.

[0036] 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 .

[0037] 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 12 , and is used to adjust the air outlet direction.

[0038] 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.

[0039] 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 .

[0040] 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.

[0041] 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.

[0042] The first heat exchange section 33 is in an arc shape that bends backward, that is, the first heat exchange section 33 is in an arc shape that bends in a direction away from the front side wall 13. By setting the first heat exchange section 33 in an arc shape, the heat exchange area of ​​the first heat exchange section 33 can be increased relative to a straight heat exchange section, thereby increasing the heat exchange area of ​​the entire heat exchanger component 30; and, since the first heat exchange section 33 is in an arc shape that bends in a direction away from the front side wall 13, the distance between the first heat exchange section 33 and the front side wall 13 of the casing 10 can be increased, and the space defined by the first heat exchange section 33 and the front side wall 13 of the casing 10 constitutes part of the air inlet space 22, thereby increasing the volume of the air inlet space 22, increasing the air inlet amount, and reducing the air inlet resistance, thereby improving the heat exchange efficiency and heat exchange effect, and improving the performance of the air conditioner indoor unit 100.

[0043] 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.

[0044] According to the air conditioner indoor unit 100 of the embodiment of the utility model, by setting the heat exchanger of the air conditioner indoor unit 100 as two heat exchange parts arranged front and back, the heat exchange area can be increased, and the upper part of the first heat exchange part 31 located on the front side is set to an arc shape bent toward the rear, which can increase the heat exchange area of ​​the first heat exchange part 31, thereby increasing the heat exchange area of ​​the entire heat exchanger component 30, and at the same time, the distance between the first heat exchange part 31 and the front side wall 13 of the casing 10 can be increased, thereby increasing the volume of the air intake space 22 and the air intake amount, which can improve the heat exchange efficiency and heat exchange effect, and enhance the performance of the air conditioner indoor unit 100.

[0045] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The transverse cross-section of the first heat exchange section 33 is a first cross-section 35, and the first cross-section 35 is perpendicular to the left-right direction. The side of the first cross-section 35 facing the second heat exchange portion 32 constitutes a first side 36, and the first side 36 is formed in an arc shape. The endpoint of the first side 36 close to the air duct component 20 is a first endpoint 37, that is, the lower endpoint of the first side 36 is the first endpoint 37, and the tangent of the first side 36 at the first endpoint 37 is a first tangent 38. The angle between the first tangent 38 and the up-down direction is β, and β satisfies: 5°≤β≤45°.

[0046] If the value of β is too small, the curvature of the first heat exchange section 33 will be too small, resulting in a small increase in the heat exchange area of ​​the first heat exchange section 33, and the heat exchange area of ​​the first heat exchange section 33 cannot be significantly increased; if the value of β is too large, the curvature of the first heat exchange section 33 will be too large, that is, the first heat exchange section 31 bends too much backward, which will cause the space for airflow defined between the first heat exchange section 33 and the second heat exchange section 32 to be too small, which is not conducive to the smooth flow of airflow and the increase of air volume. By limiting β to 5°≤β≤45°, the backward bending amplitude of the first heat exchange section 31 can be limited to a suitable range, which can effectively increase the heat exchange area of ​​the first heat exchange section 31 and ensure the smooth flow of airflow.

[0047] In addition, by limiting the upper limit of β, the first heat exchange portion 31 is prevented from bending too much backward, and the spacing between the first heat exchange section 33 and the wind wheel 23 is prevented from being too small to cause interference. Moreover, when the air conditioner indoor unit 100 includes the above-mentioned electric auxiliary heat 24, the first heat exchange section 33 can be prevented from interfering with the electric auxiliary heat 24, so that the heat exchanger component 30 can meet the working requirements and the assembly requirements at the same time without affecting the work of other components.

[0048] According to some embodiments of the present invention, referring to Figure 1 , 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.

[0049] 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.

[0050] According to some embodiments of the present invention, referring to Figure 1 , the spacing between the second heat exchange section 34 and the wind wheel 23 is c, and the range of c is 5mm-25mm, for example, the value of c can be 5mm, 10mm, 15mm, 20mm, 25mm, etc. By limiting the spacing between the second heat exchange section 34 and the wind wheel 23 to 5mm-25mm, the spacing 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 be avoided that the wind wheel 23 may interfere with the second heat exchange section 34 when rotating, and it can be avoided that 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. Excessive noise can be generated, affecting the user experience, and the risk of condensed water generated by the heat exchanger component 30 during cooling dripping onto the wind wheel 23 can be reduced.

[0051] 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.

[0052] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The end face of the second heat exchange section 34 away from the first heat exchange section 33 is the second end face 39, which is located below the central axis of the wind wheel 23. The vertical distance between the second end face 39 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.

[0053] 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.

[0054] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The second heat exchange section 34 is a straight section. By setting the second heat exchange section 34 as a straight section, the structure of the second heat exchange section 34 can be simple and convenient to manufacture.

[0055] 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 1The first heat exchange section 33 is connected to the second heat exchange section 34 by a bending transition. By setting a bending transition section 40 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 facilitates the processing and manufacturing of the first heat exchange part 31.

[0056] 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 40 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 integrally formed, which is convenient for processing and manufacturing.

[0057] According to some embodiments of the present invention, referring to Figure 2 The first heat exchange section 33 is connected to the second heat exchange section 34 in a smooth transition. A transition section 40 is connected between the first heat exchange section 33 and the second heat exchange section 34. The transition section 40 is located on the outer peripheral side of the wind wheel 23, and the transition section 40 is in an arc shape that bends away from the wind wheel 23. By arranging the transition section 40 on the outer peripheral side of the wind wheel 23 and in an arc shape that bends away from the wind wheel 23, the connection between the first heat exchange section 33 and the second heat exchange section 34 can be smoothly transitioned; and the arc-shaped transition section 40 can also increase the heat exchange area of ​​the first heat exchange portion 31.

[0058] According to some embodiments of the present invention, referring to Figure 2 , the transition section 40 is arranged concentrically with the wind wheel 23. The transition section 40 is arranged concentrically with the wind wheel 23, which means that the center of curvature of the arc-shaped transition section 40 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 transition section 40 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 transition section 40 to be concentric with the wind wheel 23, the spacing between the transition section 40 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.

[0059] According to some embodiments of the present invention, referring to Figure 2, the central angle θ corresponding to the transition section 40 is θ, and θ satisfies: 5°≤θ≤75°. For example, the value of θ can be 5°, 15°, 25°, 35°, 45°, 55°, 65°, 75°, etc. By making the central angle θ corresponding to the transition section 40 not less than 5°, it can be ensured that the transition section 40 can have the function of transitionally connecting the first heat exchange section 33 and the second heat exchange section 34, and the process difficulty of the heat exchanger component 30 can also be lower. For example, the heat exchanger component 30 is bent by using a mold. If the central angle θ corresponding to the transition section 40 is less than 5°, the curvature of the transition section 40 will be greater, and the process difficulty of the heat exchanger component 30 will be higher. By making the central angle θ corresponding to the transition section 40 not greater than 75°, the position of the second heat exchange section 34 will not be too low, and the position of the water receiving tray 50 will not be too low, so as to avoid blocking the air outlet 12 and affecting the air volume.

[0060] According to some embodiments of the present invention, referring to Figure 2 , the distance between the transition section 40 and the wind wheel 23 is d, and the range of d is 5mm to 25mm. For example, the value of d can be 5mm, 10mm, 15mm, 20mm, 25mm, etc. By limiting the distance range between the transition section 40 and the wind wheel 23 to 5mm to 25mm, the distance d between the transition section 40 and the wind wheel 23 can be not less than 5mm, so that the transition section 40 and the wind wheel 23 will not affect each other. For example, it can be avoided that the wind wheel 23 may interfere with the transition section 40 when rotating, and it can be prevented that the airflow flows through the gap between the second heat exchange section 34 and the wind wheel 23 due to the small distance between the transition section 40 and the wind wheel 23. Excessive noise can be generated, which affects the user experience, and the risk of condensed water generated by the heat exchanger component 30 during cooling dripping onto the wind wheel 23 can be reduced. Limiting the spacing between the transition section 40 and the wind wheel 23 to no more than 25 mm can avoid the situation where the airflow disturbed by the wind wheel 23 does not cover part of the space between the transition section 40 and the wind wheel 23 when the wind wheel 23 is working due to the excessive spacing between the transition section 40 and the wind wheel 23 (this will also affect the uneven flow of the airflow and the heat exchange effect of the second heat exchange section 34), and can make the wind wheel 23 and the heat exchanger component 30 cooperate better, which can improve the heat exchange effect of the heat exchanger component 30 and the working efficiency of the wind wheel 23 as a whole. In addition, it can also ensure that the overall thickness of the air conditioner indoor unit 100 is not too large, avoiding the whole machine from occupying too much volume

[0061] Refer to the following Figure 1 The air conditioner indoor unit 100 according to some specific embodiments of the present invention is described.

[0062] Reference Figure 1 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.

[0063] 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.

[0064] 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 at the front side 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. The transverse section of the first heat exchange portion 31 is a first section 35, and the side of the first section 35 facing the second heat exchange portion 32 constitutes a first side 36, and the first side 36 is formed in an arc shape. The end point of the first side 36 close to the air duct component 20 is a first end point 37, and the tangent of the first side 36 at the first end point 37 is a first tangent 38, and the angle between the first tangent 38 and the up-down direction is β, and β satisfies: 5°≤β≤45°.

[0065] 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 in an arc shape that bends in the direction away from the front side wall 13, the second heat exchange section 34 is a straight section, the end face of the second heat exchange section 34 away from the first heat exchange section 33 is the second end face 39, and the distance between the second end face 39 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.

[0066] 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 duct 21. The air duct 21 connects the air inlet space 22 and the air outlet 12. A wind wheel 23 is disposed in the air duct 21, and the rotation axis of the wind wheel 23 extends along the second direction.

[0067] Refer to the following Figure 2 The air conditioner indoor unit 100 according to some other specific embodiments of the present invention is described.

[0068] Reference Figure 2 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.

[0069] 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.

[0070] 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 at the front side 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. The first heat exchange portion 31 is formed at the front side of the second heat exchange portion 32. The transverse cross section of the first heat exchange portion 31 is a first cross section 35, and the side of the first cross section 35 facing the second heat exchange portion 32 constitutes a first side 36, the first side 36 is formed in an arc shape, the end point of the first side 36 close to the air duct component 20 is a first end point 37, and the tangent of the first side 36 at the first end point 37 is a first tangent 38, and the angle between the first tangent 38 and the up-down direction is β, and β satisfies: 5°≤β≤45°.

[0071] 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 in an arc shape that bends in the direction away from the front side wall 13, the second heat exchange section 34 is a straight section, the end face of the second heat exchange section 34 away from the first heat exchange section 33 is the second end face 39, and the distance between the second end face 39 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.

[0072] The first heat exchange section 33 is connected to the second heat exchange section 34 in a smooth transition. A transition section 40 is connected between the first heat exchange section 33 and the second heat exchange section 34. The transition section 40 is located on the outer peripheral side of the wind wheel 23 and is in an arc shape that is bent in a direction away from the wind wheel 23. The transition section 40 is concentrically arranged with the wind wheel 23. The central angle corresponding to the transition section 40 is θ, and θ satisfies: 5°≤θ≤75°. The spacing between the transition section 40 and the wind wheel 23 is d, and the range of d is 5mm to 25mm.

[0073] 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 duct 21. The air duct 21 connects the air inlet space 22 and the air outlet 12. A wind wheel 23 is disposed in the air duct 21, and the rotation axis of the wind wheel 23 extends along the second direction.

[0074] 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.

[0075] Among them, the air conditioner can be a split wall-mounted air conditioner.

[0076] 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.

[0077] 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.

[0078] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0079] In the description of the present invention, "plurality" means two or more.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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 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 on the outer peripheral side of the wind wheel, and the first heat exchange section is in an arc shape that bends backward.

2. The air conditioner indoor unit according to claim 1, characterized in that: The transverse cross-section of the first heat exchange section is a first cross-section, the first cross-section is perpendicular to the left and right direction, the rear side of the first cross-section constitutes a first side, the first side is formed in an arc shape, the lower end point of the first side is a first end point, the tangent of the first side at the first end point is a first tangent, and the angle between the first tangent and the up and down direction is β, and β satisfies: 5°≤β≤45°.

3. 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.

4. 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.

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

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

7. The air conditioner indoor unit according to claim 6, characterized in that: The first heat exchange section and the second heat exchange section are connected by a bending transition or a smooth transition.

8. 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 in a smooth transition. A transition section is connected between the first heat exchange section and the second heat exchange section. The transition section is located on the outer peripheral side of the wind wheel and is in an arc shape that bends in a direction away from the wind wheel.

9. The air conditioner indoor unit according to claim 8, characterized in that: The transition section is arranged concentrically with the wind wheel.

10. The air conditioner indoor unit according to claim 8, characterized in that: The central angle corresponding to the transition section is θ, and θ satisfies: 5°≤θ≤75°.

11. The air conditioner indoor unit according to claim 8, characterized in that: The spacing between the transition section and the wind wheel ranges from 5 mm to 25 mm.

12. An air conditioner, characterized in that: include: An air conditioning indoor unit according to any one of claims 1 to 11.

Images