Air conditioner indoor unit and air conditioner

Abstract

The application provides an air conditioner indoor unit and an air conditioner, and belongs to the technical field of air conditioners. The air conditioner indoor unit comprises a shell, a fan, an evaporator and a water receiving assembly. The shell is provided with an air inlet and an air outlet. The air inlet is located at the bottom wall of the shell, and the air outlet is located at the side wall of the shell. The evaporator, the fan and the water receiving assembly are respectively arranged in the shell, and the evaporator is located at the side of the fan facing the air inlet. The water receiving assembly comprises at least two water receiving trays. The at least two water receiving trays are arranged in an up-down interval along the inclined surface of the evaporator, and the orthographic projection of the two water receiving trays adjacent to each other in the up-down direction in a horizontal plane at least partially overlaps, so that the water in the upper water receiving tray can flow into the lower water receiving tray. The air conditioner indoor unit of the application is beneficial to expanding the size of the air inlet as much as possible without increasing the size of the shell, improving the air inlet efficiency of the air conditioner indoor unit and improving the air volume of the air conditioner indoor unit.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an indoor air conditioning unit and an air conditioner. Background Technology

[0002] Ductless air conditioners, also known as ducted units, are an economical type of air conditioning equipment that falls between ordinary split air conditioners and central air conditioning systems.

[0003] A ducted air conditioner's indoor unit draws in indoor air, exchanges heat with the evaporator, and then returns it to the room, thus regulating the indoor temperature. There are many types of indoor units, with the bottom-intake and side-exhaust type being the most widely used.

[0004] However, since the air inlet is located on the bottom side of the indoor unit, which conflicts with the location of the water tray inside the indoor unit, if sufficient air intake is required, the size of the indoor unit's casing must be increased, resulting in a larger overall size of the indoor unit. Utility Model Content

[0005] This application provides an indoor air conditioning unit and an air conditioner that can solve the problem of conflict between the air inlet and the water tray, resulting in a large overall size of the indoor unit.

[0006] The technical solution is as follows:

[0007] On the one hand, an air conditioner indoor unit is provided, the air conditioner indoor unit including: a housing, a fan, an evaporator and a water receiving assembly;

[0008] The housing is provided with an air inlet and an air outlet. The air inlet is located on the bottom wall of the housing, and the air outlet is located on the side wall of the housing.

[0009] The evaporator, the fan, and the water receiving assembly are respectively located inside the housing, and the evaporator is located on the side of the fan facing the air inlet;

[0010] The water receiving assembly includes at least two water receiving trays, which are arranged vertically at intervals along the inclined surface of the evaporator. The orthographic projections of two adjacent water receiving trays in the horizontal plane at least partially overlap, so that water in the upper water receiving tray can flow into the lower water receiving tray.

[0011] In this embodiment, the air inlet of the indoor unit is located on the bottom wall of the casing, and the air outlet is located on the side wall of the casing. The water receiving assembly includes at least two water receiving trays, which are arranged vertically at intervals along the inclined surface of the evaporator. The orthographic projections of the upper and lower water receiving trays in the horizontal plane at least partially overlap, allowing water in the upper water receiving tray to flow into the lower water receiving tray, thus jointly collecting the condensate from the entire evaporator. In the horizontal direction, the air inlet only conflicts with the bottommost water receiving tray. Since the bottommost water receiving tray only needs to collect a portion of the evaporator's condensate and does not need to cover the entire evaporator, its size can be reduced. This avoids conflicting with the position and size of the air inlet, allowing for the expansion of the air inlet size as much as possible without increasing the casing size, thereby improving the air intake efficiency and air volume of the indoor unit.

[0012] In some possible implementations, at least one of the at least two water receiving trays is located on the bottom wall of the housing and is offset from the air inlet;

[0013] The orthographic projection of the water receiving tray, which is arranged vertically and vertically at intervals with the bottom wall of the housing, in the horizontal plane at least partially overlaps with the orthographic projection of the air inlet in the horizontal plane.

[0014] With the above arrangement, the water collection tray on the bottom wall of the casing and the air inlet are staggered. The water collection tray above the bottom wall of the casing partially overlaps with the air inlet in terms of orthographic projection. The orthographic projection of the air inlet in the horizontal plane can overlap with the orthographic projection of the evaporator in the horizontal plane. Moreover, the condensate from the evaporator can be collected by the water collection tray above the bottom wall of the casing, which will not cause condensate leakage. In this way, the area of ​​the air inlet can be increased, and the air intake of the indoor unit of the air conditioner can be improved.

[0015] In some possible implementations, the water receiving tray includes a first water receiving tray and a second water receiving tray, the first water receiving tray being located on the bottom wall of the housing, and the second water receiving tray being arranged vertically at intervals from the bottom wall of the housing;

[0016] The orthographic projection of the first end of the second water receiving tray in the horizontal plane overlaps with the orthographic projection of the first water receiving tray in the horizontal plane, and the orthographic projection of the second end of the second water receiving tray in the horizontal plane overlaps with the orthographic projection of the air inlet in the horizontal plane.

[0017] The height of the first end is lower than that of the second end, so that water in the second water receiving tray can flow from the first end into the first water receiving tray.

[0018] With the above arrangement, the condensate in the second drip tray can flow into the first drip tray through its first end. The second drip tray itself does not need to have a large volume. Therefore, even if the second drip tray is arranged on the air intake path of the air inlet, it will not obstruct the air intake of the indoor unit of the air conditioner.

[0019] In some possible implementations, the bottom surface of the second water tray facing the air inlet has an arc-shaped protrusion structure.

[0020] With the above arrangement, the bottom surface of the second water receiving tray facing the air inlet has the ability to guide the air. The air entering the air inlet can quickly bypass the air under the guidance of the arc-shaped protrusion structure, further reducing the obstruction effect of the second water receiving tray on the air inlet.

[0021] In some possible implementations, the vertical distance between the first end and the bottom of the second water receiving tray is H1, and the vertical distance between the second end and the bottom of the second water receiving tray is H2; H2-H1>2mm, and / or, H2≥12mm.

[0022] With the above arrangement, when the distance difference H2-H1 between the first end and the second end and the bottom of the second water receiving tray meets the above value range, the condensate in the second water receiving tray can flow smoothly into the first water receiving tray, the water receiving effect of the entire water receiving assembly is good, and there will be no leakage of condensate.

[0023] Furthermore, when the distance H2 between the second end and the bottom of the second water receiving tray meets the above-mentioned range, the second water receiving tray can have a suitable depth and sufficient water receiving capacity, and will not be affected by the surrounding high-speed airflow. The condensate in the second water receiving tray will not be blown up by the airflow.

[0024] In some possible implementations, the first end is provided with a water eaves structure, which is connected to the first end and extends obliquely toward the side where the first water receiving tray is located.

[0025] In this embodiment, in order to ensure that the water in the second water receiving tray can flow to the first water receiving tray faster and more smoothly, a water eaves structure is arranged at the first end of the second water receiving tray. The water eaves structure can prevent the water from flowing down the side wall of the second water receiving tray, prevent the leakage of condensate, and the water eaves structure can effectively reduce the noise of water droplets falling into the first water receiving tray, thereby improving the quietness of the air conditioner indoor unit.

[0026] In some possible implementations, the orthographic projection of the water eaves structure on the horizontal plane along the first direction is L3, and the dimension extending along the vertical direction is H3, wherein the value of L3 ranges from 4 to 7 mm, and the value of H3 ranges from 5 to 8 mm, and the first direction is parallel to the air outlet direction.

[0027] With the above arrangement, the first drip tray can cover the opening of the evaporator from below, and the second drip tray can cover the tail of the evaporator from below. Moreover, the first drip tray covers the first end of the second drip tray from below. Thus, the first and second drip trays can collect all the condensate produced by the evaporator without any leakage.

[0028] In some possible implementations, the evaporator has a V-shaped structure, and the opening of the evaporator faces the fan;

[0029] The orthographic projection of the evaporator opening on the horizontal plane is within the orthographic projection range of the first water receiving tray on the horizontal plane, and the orthographic projection of the evaporator tail end on the horizontal plane is within the orthographic projection range of the second water receiving tray on the horizontal plane.

[0030] With the above arrangement, the first drip tray can cover the opening of the evaporator from below, and the second drip tray can cover the tail of the evaporator from below. Moreover, the first drip tray covers the first end of the second drip tray from below. Thus, the first and second drip trays can collect all the condensate produced by the evaporator without any leakage.

[0031] In some possible implementations, the orthographic projection of the evaporator onto the horizontal plane along the first direction has a dimension of L0, the orthographic projection of the first water receiving tray onto the horizontal plane along the first direction has a dimension of L1, the orthographic projection of the outer edge of the highest point of the second water receiving tray onto the horizontal plane along the first direction has a dimension of L2, and the overlapping portion of the orthographic projections of the first and second water receiving trays onto the horizontal plane along the first direction has a dimension of S1, wherein L1+L2-S1>L0, and the first direction is parallel to the air outlet direction.

[0032] With the above arrangement, the first and second drip trays can fully cover the bottom of the evaporator, avoiding the problem of condensate leakage.

[0033] In some possible implementations, the minimum distance between the orthographic projection of the tail end of the evaporator on the horizontal plane and the orthographic projection of the second end on the horizontal plane along the first direction is S2, where S2 is greater than or equal to 3mm.

[0034] And / or,

[0035] The first portion of the evaporator facing the bottom wall of the shell is arranged at an angle to the horizontal plane, and the end of the first portion corresponding to the opening of the evaporator extends obliquely into the first water receiving tray.

[0036] When the relative position of the tail end of the evaporator and the second end of the second drip tray satisfies S2 greater than or equal to 3mm, the second drip tray can completely wrap around the tail end of the evaporator, and the condensate at the tail end of the evaporator can be completely collected by the second drip tray, thus avoiding the problem of condensate leakage.

[0037] With the above arrangement, the first part of the evaporator can form the inclined surface mentioned above. The first water receiving tray and the second water receiving tray can be arranged at intervals along the bottom surface of the first part. Moreover, the end of the first part extends directly into the first water receiving tray. Some of the condensate on the first part can flow downward along the inclined surface and flow directly into the first water receiving tray. This can minimize the splashing caused by the high dripping of condensate and reduce the leakage of condensate.

[0038] On the other hand, an air conditioner is provided, which is a ducted air conditioner, and the air conditioner includes the indoor unit of the air conditioner described in this application.

[0039] The air conditioner in this embodiment uses the indoor unit provided in this application and has all the beneficial technical effects of this application. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the structure of the indoor unit of the air conditioner provided in the embodiment of this application;

[0042] Figure 2 This is a schematic diagram of the structure of an air conditioner indoor unit provided in another embodiment of this application;

[0043] Figure 3 This is a schematic diagram of the structure of the water receiving component provided in the embodiments of this application;

[0044] Figure 4 This is a schematic diagram of the structure of the second water receiving tray provided in an embodiment of this application;

[0045] Figure 5 This is a schematic diagram of the dimensions of the indoor unit of the air conditioner provided in the embodiment of this application.

[0046] The reference numerals in the figure are respectively:

[0047] A. First direction;

[0048] 1. Shell;

[0049] 11. Air inlet; 12. Air outlet; 13. Volute structure;

[0050] 2. Fan;

[0051] 3. Evaporator;

[0052] 30a. Inclined surface; 31. First part;

[0053] 4. Water receiving components;

[0054] 41. Water receiving tray; 411. First water receiving tray; 412. Second water receiving tray; 412a. First end; 412b. Second end; 412c. Water eaves structure. Detailed Implementation

[0055] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0056] In the description of this application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0058] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0059] On the one hand, combined with Figure 1 As shown in the figure, this application embodiment provides an air conditioner indoor unit, which includes: a housing 1, a fan 2, an evaporator 3, and a water receiving assembly 4.

[0060] The housing 1 is provided with an air inlet 11 and an air outlet 12. The air inlet 11 is located on the bottom wall of the housing 1, and the air outlet 12 is located on the side wall of the housing 1. The evaporator 3, the fan 2 and the water receiving assembly 4 are respectively inside the housing 1, and the evaporator 3 is located on the side of the fan 2 facing the air inlet 11.

[0061] The water receiving assembly 4 includes at least two water receiving trays 41, which are arranged vertically at intervals along the inclined surface 30a of the evaporator 3. The orthographic projections of two adjacent water receiving trays 41 in the horizontal plane at least partially overlap, so that water in the upper water receiving tray 41 can flow into the lower water receiving tray 41.

[0062] In this embodiment, the air inlet 11 of the indoor unit is arranged on the bottom wall of the housing 1, and the air outlet 12 is arranged on the side wall of the housing 1. The water receiving assembly 4 includes at least two water receiving trays 41. Different water receiving trays 41 are arranged vertically at intervals along the inclined surface 30a of the evaporator 3. The orthographic projections of the upper water receiving tray 41 and the lower water receiving tray 41 in the horizontal plane at least partially overlap. The water in the upper water receiving tray 41 can flow into the lower water receiving tray 41, thus jointly collecting the condensate of the entire evaporator 3. In the horizontal direction, the air inlet 11 only conflicts with the bottommost water receiving tray 41. Since the bottommost water receiving tray 41 only needs to collect a part of the condensate of the evaporator 3 and does not need to cover the entire evaporator 3, the size of the bottommost water receiving tray 41 can be reduced. This avoids the position and size of the air inlet 11, which is beneficial to maximize the size of the air inlet 11 without increasing the size of the housing 1, thereby improving the air intake efficiency and air volume of the indoor unit.

[0063] In some possible implementations, fan 2 is a cross-flow fan, also known as a cross-flow fan. When the impeller rotates, airflow enters the blade grid from the open part of the impeller, passes through the interior of the impeller, and is discharged into the volute from the other side of the blade grid, forming the working airflow. The axial length of the impeller of the cross-flow fan is not limited, and the length of the impeller can be arbitrarily selected according to different usage needs; the airflow flows through the impeller and is subjected to the force of the blades twice, so the airflow can reach a long distance; there is no turbulence, and the airflow is uniform; it has low noise, high air volume, and low back pressure, and can achieve high air volume even at low speeds; the small impeller diameter and impeller length provide more possibilities for the flat design of the air conditioning indoor unit.

[0064] For example, refer to Figure 1 As shown, the inner wall of the housing 1 is provided with a volute structure 13, which can cooperate with the impeller to form a working airflow.

[0065] In some possible implementations, the number of water trays 41 can be two, three, or more. Multiple water trays 41 are arranged at intervals along the slope of the evaporator 3, which can not only completely cover the bottom of the evaporator 3 to prevent condensate from leaking out of the evaporator 3, but also make full use of the vertical space of the shell 1, reducing the difficulty of arranging the water trays 41, and can also solve the positional interference between the water trays 41 and the air inlet 11.

[0066] In some possible implementations, the evaporator 3 in the indoor unit of the air conditioner in this embodiment is connected to the outdoor unit of the air conditioner. The outdoor unit of the air conditioner may include a compressor, a condenser and an expansion valve. The compressor, condenser and expansion valve and the evaporator 3 form a refrigeration cycle loop in which refrigerant flows. The refrigerant can evaporate and absorb heat in the evaporator 3, thereby absorbing the heat in the air flowing through the evaporator 3, so as to reduce the air temperature and achieve indoor air cooling.

[0067] Combination Figure 1 As shown, in some possible implementations, at least one of the at least two water receiving trays 41 is located on the bottom wall of the housing 1 and is arranged in a staggered manner from the air inlet 11.

[0068] The orthographic projection of the water receiving tray 41, which is arranged at intervals above and below the bottom wall of the housing 1, in the horizontal plane at least partially overlaps with the orthographic projection of the air inlet 11 in the horizontal plane.

[0069] With the above arrangement, the water receiving tray 41 on the bottom wall of the housing 1 is staggered with the air inlet 11. The water receiving tray 41 located above the bottom wall of the housing 1 partially overlaps with the air inlet 11 in orthographic projection. The orthographic projection of the air inlet 11 in the horizontal plane can overlap with the orthographic projection of the evaporator 3 in the horizontal plane. Moreover, the condensate of this part of the evaporator 3 can be received by the water receiving tray 41 located above the bottom wall of the housing 1, without causing leakage of condensate. In this way, the area of ​​the air inlet 11 can be increased, and the air intake of the indoor unit of the air conditioner can be improved.

[0070] Combination Figure 2 and Figure 3 As shown, in some possible implementations, the water receiving tray 41 includes a first water receiving tray 411 and a second water receiving tray 412. The first water receiving tray 411 is located on the bottom wall of the housing 1, and the second water receiving tray 412 is arranged vertically and vertically with respect to the bottom wall of the housing 1.

[0071] The orthographic projection of the first end 412a of the second water receiving tray 412 in the horizontal plane overlaps with the orthographic projection of the first water receiving tray 411 in the horizontal plane, and the orthographic projection of the second end 412b of the second water receiving tray 412 in the horizontal plane overlaps with the orthographic projection of the air inlet 11 in the horizontal plane; the height of the first end 412a is lower than that of the second end 412b, so that water in the second water receiving tray 412 can flow from the first end 412a into the first water receiving tray 411.

[0072] With the above arrangement, the condensate in the second drip tray 412 can flow into the first drip tray 411 through its first end 412a. The second drip tray 412 itself does not need to have a large volume. Therefore, even if the second drip tray 412 is arranged on the air intake path of the air inlet 11, it will not obstruct the air intake of the indoor unit of the air conditioner.

[0073] Combination Figure 2 As shown, in some possible implementations, the bottom surface of the second water receiving tray 412 facing the air inlet 11 is an arc-shaped protrusion structure.

[0074] With the above arrangement, the bottom surface of the second water receiving tray 412 facing the air inlet 11 has the ability to guide the air. The air entering the air inlet 11 can quickly bypass the air under the guidance of the arc-shaped protrusion structure, which further reduces the obstruction effect of the second water receiving tray 412 on the air inlet 11.

[0075] Combination Figure 3 As shown, in some possible implementation schemes, the distance between the first end 412a and the bottom end of the second water receiving tray 412 along the vertical direction is H1, and the distance between the second end 412b and the bottom end of the second water receiving tray 412 along the vertical direction is H2, wherein H2-H1≥2mm.

[0076] With the above arrangement, when the distance difference H2-H1 between the first end 412a and the second end 412b and the bottom of the second water receiving tray 412 meets the above value range, the condensate in the second water receiving tray 412 can flow smoothly into the first water receiving tray 411. The entire water receiving assembly 4 has a good water receiving effect and no condensate leakage will occur.

[0077] In some possible implementations, the values ​​of H2-H1 can be 2mm, 3mm, 4mm, 5mm, etc.

[0078] Combination Figure 3 As shown, in some possible implementation schemes, the distance between the second end 412b and the bottom end of the second water receiving tray 412 along the vertical direction is H2, where H2≥12mm.

[0079] When the distance H2 between the second end 412b and the bottom of the second water receiving tray 412 meets the above-mentioned value range, the second water receiving tray 412 can have a suitable depth and sufficient water receiving capacity, and will not be affected by the surrounding high-speed airflow. The condensate in the second water receiving tray 412 will not be blown up by the airflow.

[0080] In some possible implementations, the value of H2 can be 12mm, 13mm, 14mm, 15mm, etc.

[0081] Combination Figure 4 andFigure 5 As shown, in some possible implementations, the first end 412a is provided with a water eaves structure 412c, which is connected to the first end 412a and extends obliquely toward the side where the first water receiving tray 411 is located.

[0082] In this embodiment, in order to ensure that the water in the second water receiving tray 412 can flow to the first water receiving tray 411 faster and smoother, a water eaves structure 412c is arranged at the first end 412a of the second water receiving tray 412. The water eaves structure 412c can prevent the water from flowing down the side wall of the second water receiving tray 412, prevent the leakage of condensate, and the water eaves structure 412c can effectively reduce the noise of water droplets falling into the first water receiving tray 411, and improve the quietness of the air conditioner indoor unit.

[0083] Combination Figure 4 As shown, in some possible implementation schemes, the orthographic projection of the water eaves structure 412c on the horizontal plane along the first direction A has a dimension of L3, and the dimension extending along the vertical direction is H3, where the value of L3 ranges from 4 to 7 mm, and the value of H3 ranges from 5 to 8 mm. The first direction A is parallel to the air outlet 12's air outlet direction.

[0084] With the above arrangement, when the size of the eaves structure 412c meets the above value range, the eaves structure 412c has a better flow guiding effect, and the water in the second water receiving tray 412 can flow into the first water receiving tray 411 quickly and with low noise along the eaves structure 412c.

[0085] In some possible implementation schemes, the value of L3 can be 4mm, 5mm, 6mm, 7mm, etc., and the value of H3 can be 5mm, 6mm, 7mm, 8mm, etc.

[0086] Combination Figure 1 and Figure 2 As shown, in some possible implementations, the evaporator 3 has a V-shaped structure, and the opening of the evaporator 3 faces the fan 2.

[0087] The orthographic projection of the opening of the evaporator 3 on the horizontal plane is within the orthographic projection range of the first water receiving tray 411 on the horizontal plane, and the orthographic projection of the tail end of the evaporator 3 on the horizontal plane is within the orthographic projection range of the second water receiving tray 412 on the horizontal plane.

[0088] With the above arrangement, the first water receiving tray 411 can cover the opening of the evaporator 3 from below, and the second water receiving tray 412 can cover the tail of the evaporator 3 from below. Moreover, the first water receiving tray 411 covers the first end 412a of the second water receiving tray 412 from below. Thus, the first water receiving tray 411 and the second water receiving tray 412 can receive all the condensate produced by the evaporator 3 without any leakage of condensate.

[0089] In some possible implementations, the V-shaped structure of the evaporator 3 has a folding angle of 30°-37°, which can enclose the fan 2 and has a large flow area, resulting in good heat exchange effect.

[0090] Combination Figure 5 As shown, in some possible implementations, the orthographic projection of the evaporator 3 onto the horizontal plane along the first direction A has a dimension of L0, the orthographic projection of the first water receiving tray 411 onto the horizontal plane along the first direction A has a dimension of L1, the orthographic projection of the outer edge of the highest point of the second water receiving tray 412 onto the horizontal plane along the first direction A has a dimension of L2, and the overlapping portion of the orthographic projections of the first water receiving tray 411 and the second water receiving tray 412 onto the horizontal plane has a dimension of S1 along the first direction A, wherein L1+L2-S1>L0, and the first direction A is parallel to the air outlet direction of the air outlet 12.

[0091] With the above arrangement, the first water tray 411 and the second water tray 412 can fully cover the bottom of the evaporator 3, avoiding the problem of condensate leakage.

[0092] For example, when the second water receiving tray 412 is not provided with the eaves structure 412c, the overlapping portion of the orthographic projections of the first water receiving tray 411 and the second water receiving tray 412 on the horizontal plane is determined with reference to the first end 412a of the second water receiving tray 412; when the second water receiving tray 412 is provided with the eaves structure 412c, the overlapping portion of the orthographic projections of the first water receiving tray 411 and the second water receiving tray 412 on the horizontal plane is determined with reference to the eaves structure 412c.

[0093] Combination Figure 5 As shown, in some possible implementations, the minimum distance between the orthographic projection of the tail end of the evaporator 3 on the horizontal plane and the orthographic projection of the second end 412b on the horizontal plane along the first direction A is S2, where S2 is greater than or equal to 3mm.

[0094] When the relative position of the tail end of the evaporator 3 and the second end 412b of the second water receiving pan 412 satisfies S2 greater than or equal to 3mm, the second water receiving pan 412 can completely wrap the tail end of the evaporator 3, and the condensate at the tail end of the evaporator 3 can be completely received by the second water receiving pan 412, thus avoiding the problem of condensate leakage.

[0095] Combination Figure 5 As shown, in some possible implementations, the first portion 31 of the evaporator 3 facing the bottom wall of the housing 1 is arranged at an angle to the horizontal plane, and the end of the first portion 31 corresponding to the opening of the evaporator 3 extends obliquely into the first water receiving tray 411.

[0096] With the above arrangement, the first part 31 of the evaporator 3 can form the inclined surface 30a. The first water receiving tray 411 and the second water receiving tray 412 can be arranged at intervals along the bottom surface of the first part 31. Moreover, the end of the first part 31 extends directly into the first water receiving tray 411. Some of the condensate on the first part 31 can flow downward along the inclined surface 30a and flow directly into the first water receiving tray 411. This can minimize the splashing caused by the high dripping of condensate and reduce the leakage of condensate.

[0097] On the other hand, this embodiment provides an air conditioner, which is a duct-type air conditioner, and includes the indoor unit of the air conditioner of this application.

[0098] The air conditioner in this embodiment uses the indoor unit provided in this application and has all the beneficial technical effects of this application.

[0099] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0100] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0101] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0102] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0103] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0104] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. An indoor unit for an air conditioner, characterized in that, The indoor unit of the air conditioner includes: a housing (1), a fan (2), an evaporator (3), and a water receiving assembly (4); The housing (1) is provided with an air inlet (11) and an air outlet (12). The air inlet (11) is located on the bottom wall of the housing (1), and the air outlet (12) is located on the side wall of the housing (1). The evaporator (3), the fan (2) and the water receiving assembly (4) are respectively located inside the housing (1), and the evaporator (3) is located on the side of the fan (2) facing the air inlet (11); The water receiving assembly (4) includes at least two water receiving trays (41), which are arranged vertically at intervals along the inclined surface (30a) of the evaporator (3), and the orthographic projections of two adjacent water receiving trays (41) in the horizontal plane at least partially overlap, so that the water in the upper water receiving tray (41) can flow into the lower water receiving tray (41).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, At least one of the at least two water receiving trays (41) is located on the bottom wall of the housing (1) and is arranged in a staggered manner from the air inlet (11); The orthographic projection of the water receiving tray (41), which is arranged vertically and vertically at intervals with the bottom wall of the housing (1), in the horizontal plane overlaps at least partially with the orthographic projection of the air inlet (11) in the horizontal plane.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The water receiving tray (41) includes a first water receiving tray (411) and a second water receiving tray (412). The first water receiving tray (411) is located on the bottom wall of the shell (1), and the second water receiving tray (412) is arranged vertically and vertically with respect to the bottom wall of the shell (1). The orthographic projection of the first end (412a) of the second water receiving tray (412) in the horizontal plane overlaps with the orthographic projection of the first water receiving tray (411) in the horizontal plane, and the orthographic projection of the second end (412b) of the second water receiving tray (412) in the horizontal plane overlaps with the orthographic projection of the air inlet (11) in the horizontal plane. The height of the first end (412a) is lower than that of the second end (412b) so that water in the second water receiving tray (412) can flow from the first end (412a) into the first water receiving tray (411).

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The bottom surface of the second water receiving tray (412) facing the air inlet (11) has an arc-shaped protrusion structure.

5. The indoor unit of the air conditioner according to claim 3, characterized in that, The distance between the first end (412a) and the bottom of the second water receiving tray (412) in the vertical direction is H1, and the distance between the second end (412b) and the bottom of the second water receiving tray (412) in the vertical direction is H2. H2-H1≥2mm, and / or, H2≥12mm.

6. The indoor unit of the air conditioner according to claim 3, characterized in that, The first end (412a) is provided with a water eaves structure (412c), which is connected to the first end (412a) and extends obliquely toward the side where the first water receiving tray (411) is located.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The orthographic projection of the water eaves structure (412c) on the horizontal plane along the first direction (A) has a dimension of L3, and the dimension extending along the vertical direction is H3, wherein the value of L3 is in the range of 4-7mm, and the value of H3 is in the range of 5-8mm. The first direction (A) is parallel to the air outlet (12) air outlet direction.

8. The indoor unit of the air conditioner according to claim 3, characterized in that, The evaporator (3) has a V-shaped structure, and the opening of the evaporator (3) faces the fan (2); The orthographic projection of the opening of the evaporator (3) on the horizontal plane is within the orthographic projection range of the first water receiving tray (411) on the horizontal plane, and the orthographic projection of the tail end of the evaporator (3) on the horizontal plane is within the orthographic projection range of the second water receiving tray (412) on the horizontal plane.

9. The indoor unit of the air conditioner according to claim 3, characterized in that, The evaporator (3) has a dimension L0 in the orthographic projection on the horizontal plane along the first direction (A), the first water tray (411) has a dimension L1 in the orthographic projection on the horizontal plane along the first direction (A), the outer edge of the highest point of the second water tray (412) has a dimension L2 in the orthographic projection on the horizontal plane along the first direction (A), and the overlapping part of the orthographic projections of the first water tray (411) and the second water tray (412) on the horizontal plane has a dimension S1 in the first direction (A), wherein L1+L2-S1>L0, and the first direction (A) is parallel to the air outlet (12) air outlet direction.

10. The indoor unit of the air conditioner according to claim 8, characterized in that, The minimum distance between the orthographic projection of the tail end of the evaporator (3) on the horizontal plane and the orthographic projection of the second end (412b) on the horizontal plane along the first direction (A) is S2, where S2 is greater than or equal to 3 mm; And / or, The first part (31) of the evaporator (3) facing the bottom wall of the shell (1) is arranged at an angle to the horizontal plane, and the end of the first part (31) corresponding to the opening of the evaporator (3) extends obliquely into the first water receiving tray (411).

11. An air conditioner, characterized in that, The air conditioner is a ducted air conditioner, and the air conditioner includes the indoor unit of any one of claims 1 to 10.

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