Air conditioner indoor unit and air conditioner

Abstract

The utility model discloses an air conditioner indoor unit and an air conditioner, and relates to the technical field of air conditioners, the air conditioner indoor unit comprises an air conditioner indoor unit shell, an evaporator assembly, a first water pan and a second water pan; the evaporator assembly is arranged in the shell and comprises at least two evaporators arranged in the height direction of the shell. The first water pan is arranged in the shell and located below the evaporator assembly, and the first water pan is used for receiving condensate water. The second water receiving disc is arranged between the two adjacent evaporators, and the second water receiving disc is used for receiving condensate water from the evaporator above the second water receiving disc and discharging the condensate water into the first water receiving disc; when the evaporator assembly is too long, the problem that condensate water on the upper portion of the evaporator assembly flows to the lower portion of the evaporator assembly along the surface of the evaporator assembly, and consequently much water is accumulated on the lower portion of the evaporator assembly can be solved.

Description

Technical Field

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

[0002] Existing vertical air conditioners using cross-flow impellers have an L-shaped or U-shaped evaporator arranged vertically, and a water collection tray is usually set at the bottom of the evaporator component. For large-capacity models, in order to ensure the capacity of the machine, the evaporator is composed of multiple copper tubes. The evaporator is tall. During cooling, the condensed water flows from the highest point along the fins to the bottom water collection tray for discharge. The condensed water generated on the evaporator has a long travel along the entire fin height, and a lot of water hangs on the lower part of the evaporator, resulting in large wind resistance at the lower part of the evaporator and uneven distribution of condensed water above and below, affecting the uniformity of wind field distribution and heat exchange effect. Utility Model Content

[0003] The main purpose of the utility model is to provide an air-conditioning indoor unit and an air conditioner, aiming to avoid uneven distribution of condensed water and thus affecting the heat exchange effect of the air conditioner.

[0004] To achieve the above-mentioned purpose, the air conditioner indoor unit proposed by the present invention comprises:

[0005] case;

[0006] an evaporator assembly disposed in the shell, the evaporator assembly comprising at least two evaporators arranged along a height direction of the shell;

[0007] a first water receiving tray, disposed in the housing and below the evaporator assembly, the first water receiving tray being used to receive condensed water; and

[0008] The second water receiving tray is arranged between two adjacent evaporators. The second water receiving tray is used to receive condensed water from the evaporator above it and to discharge the condensed water into the first water receiving tray.

[0009] In one embodiment, the at least two evaporators include a first evaporator and a second evaporator, the second evaporator is located below the first evaporator, the first water receiving tray is located below the second evaporator, and the second water receiving tray is located between the first evaporator and the second evaporator.

[0010] In one embodiment, side plates are provided on both sides of the second evaporator, and at least one of the side plates is provided with a guide portion, which is used to receive condensed water from the second water receiving tray and to guide the condensed water into the first water receiving tray.

[0011] In one embodiment, each of the two side plates is provided with the guide portion.

[0012] In one embodiment, each of the side panels includes two first sub-side panels arranged side by side, and the two first sub-side panels enclose each other to form the guide portion.

[0013] In one embodiment, the two side plates are respectively a first side plate and a second side plate, the guide portion provided on the first side plate is defined as a first guide portion, and the guide portion provided on the second side plate is defined as a second guide portion;

[0014] The first side plate includes two first sub-side plates arranged side by side, and a rib is provided on one side of the two first sub-side plates close to each other, and the two ribs enclose each other to form the first guide portion;

[0015] The second air guide portion is integrally formed on the second side plate and extends along a height direction of the second side plate.

[0016] In one embodiment, a first guide channel is provided in the first guide portion, and the first guide channel connects the second water receiving tray and the first water receiving tray; and / or

[0017] A second flow guiding channel is provided in the second flow guiding portion, and the second flow guiding channel is connected with the second water receiving tray and the first water receiving tray.

[0018] In one embodiment, the second guide channel is bent and extended along the height direction of the second side plate.

[0019] In one embodiment, the second water receiving tray is provided with a water receiving trough opening upward, and drainage ports are provided on both sides of the water receiving trough, and the drainage ports are used to drain water to the guide portion.

[0020] In one embodiment, the bottom wall of the water receiving trough is provided with a drainage surface, the drainage surface is provided with a protrusion located between the two drainage outlets, and the drainage surface is extended obliquely downward from the protrusion to the drainage outlet.

[0021] In one embodiment, a water retaining rib is provided at the lower edge of the drain outlet, and the water retaining rib is obliquely extended from the drain outlet toward the guide portion.

[0022] In one embodiment, support ribs are provided in the water receiving trough, and the support ribs extend along the length direction of the water receiving trough.

[0023] The utility model also provides an air conditioner, comprising an air conditioner outdoor unit; and

[0024] The air-conditioning indoor unit as described above is connected to the air-conditioning outdoor unit via a refrigerant pipe.

[0025] The utility model provides an evaporator assembly consisting of no less than two evaporators inside the air-conditioning indoor unit, so that the evaporator assembly is long enough, and the air-conditioning indoor unit can have a larger contact area with the evaporator assembly when air is taken in, thereby improving the heat exchange capacity of the air-conditioning indoor unit; and by providing a second water receiving tray between the two adjacent evaporators, for receiving condensed water from the upper evaporator, and then introducing the received condensed water into the first water receiving tray, when the evaporator assembly is too long, it can prevent the condensed water on the upper part of the evaporator assembly from flowing along its surface to the lower part of the evaporator assembly, and mixing with the condensed water generated by the lower part of the evaporator assembly itself, resulting in the problem of more water hanging on the lower part of the evaporator assembly, thereby avoiding the problem of more water hanging on the lower part of the evaporator assembly and the greater wind resistance resulting in poor heat exchange effect of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0027] Figure 1 This is a structural diagram of an embodiment of an air-conditioning indoor unit provided by the present utility model;

[0028] Figure 2 for Figure 1 Schematic diagram of the internal structure of the indoor unit of the air conditioner;

[0029] Figure 3 for Figure 1 Installation diagram of the evaporator;

[0030] Figure 4 for Figure 1 Schematic diagram of the structure of the evaporator bracket;

[0031] Figure 5 for Figure 1 An exploded structural diagram of the evaporator at one angle;

[0032] Figure 6 for Figure 5 A local enlarged view at point A;

[0033] Figure 7 for Figure 5 A partial enlarged view at point B;

[0034] Figure 8 for Figure 1 Partial cross-sectional exploded structural diagram of the middle evaporator;

[0035] Figure 9 for Figure 8 A partial enlarged view at point C;

[0036] Figure 10 for Figure 8 A local enlarged view at point D;

[0037] Figure 11 Schematic diagram of the structure of the second water tray;

[0038] Figure 12 for Figure 11 A cross-sectional view of the second water tray in FIG.

[0039] Description of Figure Numbers:

[0040] 100, air conditioner indoor unit; 10, housing; 101, air outlet; 102, air inlet; 103, heat exchange duct; 20, first water tray; 30, evaporator assembly; 301, first air guide; 301a, first air guide channel; 301b, first water inlet; 302, second air guide; 302a, second air guide channel; 302b, second water inlet; 31, first evaporator; 32, second air guide Second evaporator; 33, side plate; 331, first side plate; 3311, first sub-side plate; 3311a, side guard; 332, second side plate; 40, second water receiving tray; 41, water receiving trough; 411, drain outlet; 412, drain surface; 4121, raised portion; 42, water retaining rib; 43, supporting rib; 50, crossflow impeller; 60, evaporator bracket; 61, side frame; 62, bottom frame; 63, top frame.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0043] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0045] Existing vertical air conditioners using cross-flow impellers have an L-shaped or U-shaped evaporator arranged vertically, and a water collection tray is usually set at the bottom of the evaporator component. For large-capacity models, in order to ensure the capacity of the machine, the evaporator is composed of multiple copper tubes. The evaporator is tall. During cooling, the condensed water flows from the highest point along the fins to the bottom water collection tray for discharge. The condensed water generated on the evaporator has a long travel along the entire fin height, and a lot of water hangs on the lower part of the evaporator, resulting in large wind resistance at the lower part of the evaporator and uneven distribution of condensed water above and below, affecting the uniformity of wind field distribution and heat exchange effect.

[0046] The present invention provides an air-conditioning indoor unit 100 .

[0047] See also Figures 1 to 12 In one embodiment of the present invention, the air conditioner indoor unit 100 includes a shell 10, an evaporator assembly 30, a first water receiving tray 20 and a second water receiving tray 40; the evaporator assembly 30 is arranged in the shell 10, and the evaporator assembly 30 includes at least two evaporators arranged along the height direction of the shell 10; the first water receiving tray 20 is arranged in the shell 10 and is located below the evaporator assembly 30, and the first water receiving tray 20 is used to receive condensed water; the second water receiving tray 40 is arranged between two adjacent evaporators, and the second water receiving tray 40 is used to receive condensed water from the evaporator above it, and is used to discharge the condensed water into the first water receiving tray 20.

[0048] The air conditioner indoor unit 100 provided by the present invention also includes a fan disposed within a housing 10. The air conditioner indoor unit 100 also has an air inlet 102 and an air outlet 101 provided on the housing 10. The air conditioner indoor unit 100 is also connected to an external air conditioner outdoor unit via a refrigerant pipe. During cooling, the air conditioner indoor unit 100 directs refrigerant to the evaporator assembly 30 via the refrigerant pipe. The refrigerant flows through the evaporator assembly 30, absorbs heat from the indoor environment, and evaporates into gas. The refrigerant then enters the air conditioner outdoor unit through the refrigerant pipe. After releasing heat in the air conditioner outdoor unit, the refrigerant reenters the evaporator of the air conditioner indoor unit 100 to absorb heat, thereby performing a reciprocating cooling cycle. The air conditioner indoor unit 100 can be a cabinet unit or a wall-mounted unit.

[0049] When the air conditioner indoor unit 100 is cooling, the surface temperature of the evaporator assembly 30 is low, and water molecules in the environment condense on its surface to form condensed water. This condensed water then falls down the evaporator assembly 30 under its own gravity. Because the evaporator assembly 30 includes at least two evaporators arranged along its height, with a first water receiving tray 20 positioned between adjacent evaporators, the condensed water on the surface of the upper evaporator falls into the second water receiving tray 40 as it falls, and then flows from the second water receiving tray 40 to the lower evaporator. Guides can be provided on both sides of the lower evaporator to allow the condensed water to flow from the guides into the first water receiving tray 20. This prevents the condensed water on the surface of the upper evaporator from flowing directly onto the entire surface of the lower evaporator, resulting in the entire surface of the lower evaporator being covered with both its own condensed water and condensed water from the upper evaporator. This results in excessive water accumulation on the lower portion of the evaporator assembly 30 when air enters the air conditioner indoor unit 100, resulting in excessive wind resistance and reduced heat exchange capacity.

[0050] The technical solution of the present invention is to provide an evaporator assembly 30 composed of no less than two evaporators within the air conditioner indoor unit 100, so that the evaporator assembly 30 is sufficiently long. When air enters the air conditioner indoor unit 100, the evaporator assembly 30 has a larger contact area with the evaporator assembly 30, thereby improving the heat exchange capacity of the air conditioner indoor unit 100. In addition, a second water receiving tray 40 is provided between two adjacent evaporators to receive condensed water from the upper evaporator and then guide the received condensed water into the first water receiving tray 20. When the evaporator assembly 30 is too long, the condensed water on the upper part of the evaporator assembly 30 can be prevented from flowing along its surface to the lower part of the evaporator assembly 30 and mixing with the condensed water generated by the lower part of the evaporator assembly 30, thereby preventing the problem of excessive water accumulation in the lower part of the evaporator assembly 30, which would result in poor evaporation performance due to increased wind resistance.

[0051] In the present invention, the overall height of the evaporator may not exceed 400 mm. When the overall height of the evaporator assembly 30 is too high, the evaporator assembly 30 can be divided into multiple evaporators arranged in a vertical direction, each evaporator having a height of no more than 400 mm. A second water receiving tray 40 is provided between two adjacent evaporators so that the condensed water on each evaporator falls into the second water receiving tray 40 as it flows downward, and then flows into the first water receiving tray 20 through the second water receiving tray 40. This avoids the problem that the overall height of the evaporator assembly 30 is too high. The provision of a second water receiving tray 40 cannot completely avoid the problem of excessive water accumulation at the bottom of the evaporator assembly 30 and poor heat exchange effect.

[0052] The evaporator at the top of the evaporator assembly 30 may be defined as the first evaporator 31, and the remaining evaporators may be defined as the second evaporator. The configuration is as follows:

[0053] Optionally, the at least two evaporators include a first evaporator 31 and a second evaporator 32, the second evaporator 32 is located below the first evaporator 31, the first water receiving tray 20 is located below the second evaporator 32, and the second water receiving tray 40 is located between the first evaporator 31 and the second evaporator 32.

[0054] See Figure 5 、 Figure 6 、 Figure 7 As shown, in this embodiment, side plates 33 are provided on both sides of the second evaporator 32, and at least one of the side plates 33 is provided with a guide portion, which is used to receive condensed water from the second water receiving tray 40 and to guide the condensed water into the first water receiving tray 20.

[0055] The side panels 33 are used to enclose the two side ends of the second evaporator 32, providing the necessary structural support and ensuring its stability and rigidity. The side panels 33 play a minor role in heat exchange within the second evaporator 32. To this end, flow guides can be provided on the side panels 33. When condensed water flows along the flow guides toward the first water receiving tray 20, the impact of condensed water flowing from the first evaporator 31 toward the second evaporator 32 on the heat exchange within the second evaporator 32 is reduced. Furthermore, side panels 33 are also required on both sides of the first evaporator 31 to provide structural support. Since the first evaporator 31 is located at the upper end of the evaporator assembly 30, no condensed water flows toward the first evaporator 31 within the air conditioner indoor unit 100. Therefore, the side panels 33 on both sides of the first evaporator 31 do not need flow guides, which can save costs. In the second evaporator 32, in order to better guide the water in the second water receiving pan 40, a guide portion can be provided on both side panels 33 of the second evaporator 32. This can improve the efficiency of draining condensed water from the second water receiving pan 40. Optionally, each of the two side panels 33 is provided with the guide portion.

[0056] See Figure 7 As shown, each of the side panels 33 includes two first sub-side panels 3311 arranged side by side, and the two first sub-side panels 3311 enclose and form the guide portion.

[0057] In the above embodiment, side panels 33 formed by joining two first sub-side panels 3311 can be provided on both sides of the second evaporator 32. A rib 3311a can be provided on the side of the first sub-side panels 3311 that is adjacent to each other. The rib 3311a protrudes from the first sub-side panels 3311. When the two first sub-side panels 3311 are assembled on the sides of the second evaporator 32 to form the side panel 33, the ribs 3311a on the two first sub-side panels 3311 join together to form a guide portion. The guide portion can have a semicircular or V-shaped cross-section, and a guide groove can be formed inside the guide portion. When condensed water flows into the guide portion, it can flow along the guide groove to the first water receiving tray 20.

[0058] See Figure 5 、 Figure 6 、 Figure 7 As shown, the two side plates 33 are respectively a first side plate 331 and a second side plate 332 , the guide portion provided on the first side plate 331 is defined as a first guide portion 301 , and the guide portion provided on the second side plate 332 is defined as a second guide portion 302 ;

[0059] The first side plate 331 includes two first sub-side plates 3311 arranged side by side. A retaining edge 3311a is provided on one side of the two first sub-side plates 3311 close to each other. The two retaining edges 3311a enclose each other to form the first air guide portion 301.

[0060] The second air guide portion 302 is integrally formed with the second side plate 332 and extends along a height direction of the second side plate 332 .

[0061] In the above embodiment, the first side panel 331 can be formed by splicing two first sub-side panels 3311 together, and the second side panel 332 can be formed by a single piece of plate. Thus, by using a single-piece second side panel 332 as the side panel 33, the overall structural strength of the second evaporator 32 can be increased. Furthermore, by using the second side panel 33 of the second evaporator 32 as a first sub-side panel 3311 spliced ​​together from two first sub-side panels 3311, the assembly of the second evaporator 32 can be prevented from being affected.

[0062] When the side plate 33 is the second side plate 332, since the second side plate 332 is a whole plate, the second guide portion 302 located on the second side plate 332 can be integrally formed with the second side plate 332. The second guide portion 302 can be specifically formed by stamping the second side plate 332, or by bending the second side plate 332, or the second guide portion 302 can be integrally cast with the second side plate 332, which is not specifically limited here.

[0063] When the side panel 33 is the first side panel 331, the retaining edge 3311a can protrude from the side of the first sub-side panel 3311, and a docking portion can be reserved on the edge of the retaining edge 3311a. When two first sub-side panels 3311 are spliced ​​together to form the first side panel 331, the docking portions on the two retaining edges 3311a dock with each other, so that the two retaining edges 3311a can be tightly connected. When forming the first guide portion 301, the first guide portion 301 can be prevented from leaking when guiding water.

[0064] Continue reading Figure 5 、 Figure 6 、 Figure 7 Optionally, a first guide channel 301a is provided in the first guide portion 301, and the first guide channel 301a connects the second water receiving tray 40 and the first water receiving tray 20; and / or

[0065] A second guide channel 302 a is defined in the second guide portion 302 . The second guide channel 302 a connects the second water receiving tray 40 and the first water receiving tray 20 .

[0066] Among them, a first water inlet 301b is opened at one end of the first guide channel 301a facing the drain outlet 411, a first water outlet is opened at one end of the first guide channel 301a facing the first water receiving tray 20, a second water inlet 302b is opened at one end of the second guide channel 302a facing the drain outlet 411, and a second water outlet is opened at one end of the second guide channel 302a facing the first water receiving tray 20; the first water inlet 301b and the second water inlet 302b are respectively connected to the corresponding drain outlet 411, and the condensed water received by the second water receiving tray 40 is introduced into the first guide channel 301a and the second guide channel 302a, and flows along the first guide channel 301a to the first water outlet, and flows along the second guide channel 302a to the second water outlet, and flows out from the first water outlet and the second water outlet to the first water receiving tray 20, and flows out to the external environment with the condensed water in the first water receiving tray 20. In this way, the condensed water received by the second water receiving tray 40 can be discharged into the first water receiving tray 20 in a timely manner.

[0067] Of course, in other embodiments, the first guide portion 301 can also guide the flow by opening a first guide groove on the side away from the second evaporator 32, and the second guide portion 302 can also guide the flow by opening a second guide groove on the side away from the second evaporator 32, which is not specifically limited here.

[0068] Optionally, the second guide channel 302a is curved and extended along the height direction of the second side panel 332. Thus, when condensed water flows along the second guide channel 302a, the flow path is longer and the flow speed is slower, allowing the second guide channel 302a to store more condensed water per unit time, thereby preventing the second water outlet from discharging too much water per unit time, which would result in excessive water storage in the first water receiving tray 20 and inability to drain the water out of the air conditioner indoor unit 100 in a timely manner. Of course, in other embodiments, the first guide channel 301a can also be curved and extended along the height direction of the second side panel 332. Since the first guide channel 301a is formed by splicing and enclosing two first sub-side panels 3311a, this will result in higher manufacturing process requirements for the first side panel 331.

[0069] See Figure 9 、 Figure 10 、 Figure 11 As shown, the second water receiving tray 40 is provided with a water receiving groove 41 opening upward, and drainage ports 411 are provided on both sides of the water receiving groove 41, and the drainage ports 411 are used to drain water to the guide portion.

[0070] It can be understood that the water receiving trough 41 is formed by the peripheral wall of the second water receiving tray 40, and the peripheral wall of the second water receiving tray 40 protrudes from the outer periphery of the first evaporator 31, so that the projection of the water receiving trough 41 on the horizontal plane can at least completely cover the projection of the first evaporator 31 on the horizontal plane, so that the condensed water condensed on the surface of the first evaporator 31 can completely fall into the water receiving trough 41 under the action of gravity, and drain outlets 411 are opened on both sides of the water receiving trough 41. When there is a certain amount of condensed water in the water receiving trough 41, the condensed water can flow from the drain outlet 411 to the guide part.

[0071] The bottom wall of the water receiving trough 41 can be arranged horizontally, so that when a certain amount of condensed water accumulates in the water receiving trough 41, it can be discharged from the drain outlet 411. Alternatively, the bottom wall of the water receiving trough 41 can be arranged to be inclined downward toward the drain outlet 411, so that the condensed water in the water receiving trough 41 can flow to the drain outlet 411 under the action of its own gravity. This allows the condensed water to be discharged without the need for a certain amount of condensed water to accumulate in the water receiving trough 41. The specific arrangement is as follows:

[0072] See Figure 12As shown, optionally, the bottom wall of the water receiving trough 41 is provided with a drainage surface 412 , and the drainage surface 412 is provided with a raised portion 4121 located between the two drainage outlets 411 , and the drainage surface 412 is extended obliquely downward from the raised portion 4121 to the drainage outlet 411 .

[0073] The extension from the raised portion 4121 to the drain outlet 411 can be arranged in a stepped, downwardly inclined manner, or in a gradual, downwardly inclined manner. The present invention adopts a gradual, downwardly inclined manner. This allows condensed water, regardless of where it lands within the water receiving trough 41, to flow along the drainage surface 412 toward the drain outlet 411, thereby enabling rapid drainage of the second water receiving tray 40.

[0074] See Figure 9 、 Figure 10 As shown, in the embodiment of the present invention, a water retaining rib 42 is provided at the lower edge of the drain outlet 411 , and the water retaining rib 42 is obliquely extended from the drain outlet 411 toward the guide portion.

[0075] With such arrangement, when the second water receiving tray 40 drains water to the guide part through the drain outlet 411, the water flow can be guided to the guide part by the water retaining rib 42 located at the lower edge of the drain outlet 411, thereby preventing the drain outlet 411 from being too far away from the guide part, and preventing some condensed water from accurately entering the guide part.

[0076] Among them, the water retaining rib 42 can be set on one side edge of the lower edge of the drain outlet 411, or a water retaining rib 42 can be set on each side of the lower edge of the drain outlet 411. A flow channel connected to the guide part is formed by multiple water retaining ribs 42, so that the drain outlet 411 can be seamlessly connected with the guide part, thereby preventing condensation water from splashing as much as possible.

[0077] See Figure 11 As shown, optionally, support ribs 43 are provided in the water receiving trough 41, and the support ribs 43 extend along the length of the water receiving trough 41. This arrangement can increase the overall structural strength of the second water receiving tray 40 and prevent the second water receiving tray 40 from being deformed due to excessive load when the second water receiving tray 40 is placed between the first evaporator 31 and the second evaporator 32.

[0078] The support ribs 43 are bendable and disposed within the water receiving trough 41. The support ribs 43 have multiple, spaced-apart bends, with a water-passing gap between each bend and the wall of the water receiving trough 41. This prevents condensed water from being blocked by the support ribs 43 as it flows from the water receiving trough 41 to the drain outlet 411, preventing some condensed water from remaining in the second water receiving tray 40 and being unable to drain.

[0079] See Figure 2As shown, in this embodiment, the air-conditioning indoor unit has an air outlet 101, an air inlet 102 and a heat exchange duct 103, the air outlet 101 and the air inlet 102 are opened in the shell 10, and the heat exchange duct 103 is arranged in the shell 10 and connects the air outlet 101 and the air inlet 102.

[0080] In the above embodiment, a cross-flow fan wheel is also provided in the heat exchange air duct 103, which is used to introduce air from the external environment into the heat exchange air duct 103 from the air inlet 102, exchange heat with the evaporator assembly 30, and blow it out from the air outlet 101 after heat exchange to achieve cooling of the indoor environment.

[0081] Optionally, the air inlet 102 includes a first air inlet, a second air inlet and a third air inlet, and the first air inlet, the second air inlet and the third air inlet are arranged around the shell from one side of the evaporator assembly 30 to the other side of the evaporator assembly 30 to cover the air inlet surface of the evaporator assembly 30.

[0082] This arrangement allows the air conditioner indoor unit 100 to have a sufficiently large air intake area, resulting in a smaller air intake resistance when the air conditioner indoor unit 100 is intaked, and also allows the evaporator assembly 30 to have a sufficiently large windward area, thereby increasing the heat exchange efficiency of the evaporator assembly 30. Of course, in other embodiments, an air intake 102 may also be provided at the top of the air conditioner indoor unit 100, so that the air conditioner indoor unit 100 has a larger air intake area, thereby further improving the heat exchange efficiency of the evaporator assembly 30.

[0083] Optionally, the present invention further includes an evaporator bracket 60 for mounting the evaporator assembly 30. The evaporator bracket 60 comprises a top frame 63, a bottom frame 62, and side frames 61, which are respectively connected to the evaporator assembly 30 from the top, sides, and bottom. This provides support for the evaporator assembly 30 when it is too long, ensuring stable installation.

[0084] The present invention further provides an air conditioner comprising an outdoor unit and an indoor unit 100. The specific structure of the indoor unit 100 is similar to that of the aforementioned embodiments. Since the present air conditioner utilizes all of the technical solutions of all of the aforementioned embodiments, it at least possesses all of the beneficial effects of the technical solutions of the aforementioned embodiments, which will not be described in detail here. The indoor unit 100 is connected to the outdoor unit via a refrigerant pipe.

[0085] The air conditioner also includes a throttle valve, and the outdoor unit also includes a compressor and a heat exchanger. When the air conditioner is operating in cooling mode, the refrigerant in the evaporator assembly 30 of the indoor unit 100 absorbs heat from the indoor environment at low pressure and evaporates into gas. This gas then flows through the refrigerant pipe into the compressor, where it is compressed to form high-temperature, high-pressure gas. This high-temperature, high-pressure gas then enters the heat exchanger of the outdoor unit, exchanges heat with the outside air, and condenses into a high-pressure liquid. This gas then passes through the throttle valve and enters the evaporator assembly 30 of the indoor unit 100. The refrigerant's pressure decreases at the throttle valve, turning it into a low-pressure mixed gas and liquid state. This process further reduces the refrigerant temperature. After the low-temperature, low-pressure refrigerant enters the evaporator assembly 30, it absorbs heat from the indoor environment and flows back to the outdoor unit, completing the refrigeration cycle.

[0086] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that: include: case; an evaporator assembly disposed in the shell, the evaporator assembly comprising at least two evaporators arranged along a height direction of the shell; a first water receiving tray, disposed in the housing and below the evaporator assembly, the first water receiving tray being used to receive condensed water; as well as The second water receiving tray is arranged between two adjacent evaporators. The second water receiving tray is used to receive condensed water from the evaporator above it and to discharge the condensed water into the first water receiving tray.

2. The air conditioner indoor unit according to claim 1, wherein: The at least two evaporators include a first evaporator and a second evaporator, the second evaporator is located below the first evaporator, the first water receiving tray is located below the second evaporator, and the second water receiving tray is located between the first evaporator and the second evaporator.

3. The air conditioner indoor unit according to claim 2, wherein: Side plates are provided on both sides of the second evaporator, and at least one of the side plates is provided with a guide portion, which is used to receive condensed water from the second water receiving tray and to guide the condensed water into the first water receiving tray.

4. The air conditioner indoor unit according to claim 3, wherein: The two side plates are each provided with the guide portion.

5. The air conditioner indoor unit according to claim 4, wherein: Each of the side plates includes two first sub-side plates arranged side by side, and the two first sub-side plates enclose each other to form the guide portion.

6. The air conditioner indoor unit according to claim 4, wherein: The two side plates are respectively a first side plate and a second side plate, the guide portion provided on the first side plate is defined as a first guide portion, and the guide portion provided on the second side plate is defined as a second guide portion; The first side plate includes two first sub-side plates arranged side by side, and a rib is provided on one side of the two first sub-side plates close to each other, and the two ribs enclose each other to form the first guide portion; The second air guide portion is integrally formed on the second side plate and extends along a height direction of the second side plate.

7. The air conditioner indoor unit according to claim 6, wherein: A first guide channel is provided in the first guide portion, and the first guide channel connects the second water receiving tray and the first water receiving tray; and / or A second flow guiding channel is provided in the second flow guiding portion, and the second flow guiding channel is connected with the second water receiving tray and the first water receiving tray.

8. The air conditioner indoor unit according to claim 7, wherein: The second guide channel is bent and extended along the height direction of the second side plate.

9. The air conditioner indoor unit according to claim 3, wherein: The second water receiving tray is provided with a water receiving trough opening upward, and drainage ports are provided on both sides of the water receiving trough, and the drainage ports are used to drain water to the guide portion.

10. The air conditioner indoor unit according to claim 9, wherein: The bottom wall of the water receiving trough is provided with a drainage surface, and the drainage surface is provided with a protrusion located between the two drainage outlets. The drainage surface is extended obliquely downward from the protrusion to the drainage outlet.

11. The air conditioner indoor unit according to claim 9, wherein: A water retaining rib is provided at the lower edge of the drain outlet, and the water retaining rib is obliquely extended from the drain outlet toward the guide portion.

12. The air conditioner indoor unit according to claim 9, wherein: Support ribs are provided in the water receiving trough, and the support ribs are extended along the length direction of the water receiving trough.

13. An air conditioner, characterized in that: include: Air conditioner outdoor unit; as well as The air conditioning indoor unit according to any one of claims 1 to 12, wherein the air conditioning indoor unit is connected to the air conditioning outdoor unit via a refrigerant pipe.

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