Embedded air conditioner indoor unit

Abstract

The utility model provides an embedded air conditioner indoor unit which is used for being embedded in an embedded cavity of a cabinet body and comprises a shell used for being arranged in the embedded cavity, an air inlet part is arranged at the front end of the shell, an air inlet duct extending in the front-back direction is arranged in the shell, and the air inlet duct is communicated with the air inlet part; the indoor heat exchange assembly comprises a first indoor heat exchanger arranged in the air inlet duct in the front-back direction, the front end of the first indoor heat exchanger is obliquely arranged in the front-lower direction, and the rear end of the first indoor heat exchanger is obliquely arranged in the rear-upper direction. The second indoor heat exchanger is arranged in the air inlet channel in the front-back direction and located below the first indoor heat exchanger, the front end of the second indoor heat exchanger is obliquely arranged in the front-upper direction, the rear end of the second indoor heat exchanger is obliquely arranged in the rear-lower direction, and the front end of the second indoor heat exchanger is connected to the front end of the first indoor heat exchanger. According to the embedded air conditioner indoor unit, the refrigerating / heating performance of the embedded air conditioner indoor unit is guaranteed, and the use experience of a user is guaranteed.

Description

Technical Field

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

[0002] With the development of science and technology, people's living standards have been continuously improved, and the functions of air conditioners have become more diverse. Moreover, users pay more attention to the aesthetics of household appliances such as air conditioners, and also pay more attention to the fit or integration of household appliances such as air conditioners with the home decoration style. In order to ensure the integration of the air conditioner with the home living environment, users will install the wall-mounted air conditioner indoor unit in the cabinet. Further, the embedded air conditioner has emerged on the market.

[0003] At present, for the existing embedded air conditioner, in order to avoid the situation that the wall of the cabinet blocks the air inlet of the air conditioner indoor unit and ensure the air intake of the air conditioner indoor unit, the manufacturer will design its air inlet on its front side. However, the arrangement form of the indoor heat exchanger in the existing embedded air conditioner indoor unit still adopts the arrangement form of the indoor heat exchanger in the original wall-mounted indoor unit. For example, in the direction facing the air inlet, a single heat exchanger is still arranged vertically. In the form of forward air intake, a large amount of air flow will flow to the single vertically arranged heat exchanger, and the heat or cold on it cannot meet the heat exchange with such a large amount of air flow; at the same time, the heat exchange surface area of the single heat exchanger is small, which cannot ensure the heat exchange efficiency of the heat exchanger. All of the above will lead to a decline in the cooling / heating performance of the air conditioner, and further reduce the user experience. Summary of the Utility Model

[0004] An object of the utility model is to provide an embedded air conditioner indoor unit that can overcome at least one of the above technical defects in the prior art.

[0005] A further object of the utility model is to ensure the cooling / heating performance of the embedded air conditioner indoor unit and ensure the user experience.

[0006] Specifically, the utility model provides an embedded air conditioner indoor unit for being installed in an installation cavity of a cabinet, including:

[0007] A housing for being arranged in the installation cavity, with an air inlet part provided at its front end, and an air inlet air duct extending in the front-back direction arranged inside it, and the air inlet air duct communicates with the air inlet part;

[0008] An indoor heat exchange assembly, including:

[0009] A first indoor heat exchanger arranged in the air inlet air duct along the front-back direction, with its front end facing forward and downward and its rear end arranged obliquely facing backward and upward;

[0010] The second indoor heat exchanger is arranged in the air inlet duct along the front-rear direction, below the first indoor heat exchanger. Its front end is tilted forward and upward, and its rear end is tilted backward and downward. Its front end is connected to the front end of the first indoor heat exchanger.

[0011] Furthermore, the top of the indoor heat exchange assembly is connected to the top of the air inlet duct, and the bottom of the indoor heat exchange assembly is connected to the bottom of the air inlet duct.

[0012] Furthermore, the indoor heat exchange assembly further includes:

[0013] The third indoor heat exchanger is arranged in the air inlet duct along the up-down direction, above the first indoor heat exchanger. Its top end is connected to the top of the air inlet duct, and its bottom end is connected to the rear end of the first indoor heat exchanger.

[0014] Furthermore, the top end of the third indoor heat exchanger is tilted backward and upward, and the bottom end is tilted forward and downward, so as to promote the water body attached to the third indoor heat exchanger to flow towards the first indoor heat exchanger.

[0015] Furthermore, the included angle between the third indoor heat exchanger and the horizontal plane is greater than the included angle between the first indoor heat exchanger and the horizontal plane; and,

[0016] The included angle between the third indoor heat exchanger and the horizontal plane is greater than the included angle between the second indoor heat exchanger and the horizontal plane.

[0017] Furthermore, the embedded air conditioner indoor unit further includes:

[0018] The main water receiving tray is arranged at the bottom of the air inlet duct, below the second indoor heat exchanger, and is used for receiving the water body falling from the first indoor heat exchanger and the second indoor heat exchanger. The rear end of the second indoor heat exchanger is connected to the main water receiving tray.

[0019] Furthermore, the housing includes:

[0020] The base, on which a volute cavity communicating with the air inlet duct is provided; and,

[0021] The embedded air conditioner indoor unit further includes:

[0022] The indoor fan is arranged in the volute cavity and is used for promoting the air flow flowing into the air inlet duct from the air inlet part to flow through the indoor heat exchange assembly and then flow into the volute cavity.

[0023] Furthermore, at least a part of the third indoor heat exchanger is located above the indoor fan.

[0024] Furthermore, the housing includes:

[0025] The surrounding frame surrounds the upper, bottom, left and right sides of the base. The air inlet duct is located between the surrounding frame and the base, and the air inlet duct is located above the base; and,

[0026] The top end of the third indoor heat exchanger is connected to the top of the surrounding frame; and,

[0027] The main water receiving tray is located on the base, and the main water receiving tray is in front of the volute chamber. Both the first indoor heat exchanger and the second indoor heat exchanger are arranged in front of the indoor fan.

[0028] Furthermore, the housing further includes:

[0029] A front panel cover, covering the front end of the surrounding frame and located in front of the base. The air inlet duct is located between the surrounding frame, the base and the front panel cover; and,

[0030] The air inlet part includes an air inlet opened on the front panel cover. An air outlet is opened on the front panel cover below the air inlet, and an air outlet duct communicating between the volute chamber and the air outlet is opened in the base.

[0031] Particularly, the present utility model further provides an embedded air conditioner indoor unit, which includes:

[0032] A cabinet body, in which an embedding cavity is provided;

[0033] A housing, used to be arranged in the embedding cavity. An air inlet part is provided at its front end, and an air inlet duct extending in the front-rear direction is provided inside it, and the air inlet duct communicates with the air inlet part;

[0034] An indoor heat exchange assembly, including:

[0035] A first indoor heat exchanger, arranged in the air inlet duct along the front-rear direction, with its front end tilted forward and downward and its rear end tilted backward and upward,

[0036] A second indoor heat exchanger, arranged in the air inlet duct, below the first indoor heat exchanger, with its front end tilted forward and upward and its rear end tilted backward and downward, and its front end is connected to the front end of the first indoor heat exchanger.

[0037] For the embedded air conditioner indoor unit of the present utility model, since an indoor heat exchange assembly including a first indoor heat exchanger and a second indoor heat exchanger is adopted in the forward air inlet direction, that is, the number of indoor heat exchangers is increased in the forward air inlet direction. Furthermore, the embedded air conditioner indoor unit of the present utility model increases the cooling capacity / heating capacity of the indoor heat exchange assembly in the direction towards the air inlet, and can well meet the heat exchange requirements of the air flow in the forward air inlet form. At the same time, the first indoor heat exchanger and the second indoor heat exchanger are arranged in a V shape, and the connecting ends of the first indoor heat exchanger and the second indoor heat exchanger are arranged in the direction towards the air inlet, that is, the first indoor heat exchanger is arranged in the air inlet duct along the front-back direction, and the front end of the first indoor heat exchanger faces forward and downward and its rear end is inclined upward and backward, the second indoor heat exchanger is arranged in the air inlet duct along the front-back direction, the second indoor heat exchanger is located below the first indoor heat exchanger, and the front end of the second indoor heat exchanger faces forward and upward and its rear end is inclined downward and backward, and the front end of the second indoor heat exchanger is connected to the front end of the first indoor heat exchanger. Furthermore, the embedded air conditioner indoor unit of the present utility model increases the heat exchange area of the indoor heat exchange assembly in the direction towards the air inlet. Therefore, the present utility model ensures the refrigeration / heating performance of the embedded air conditioner indoor unit and ensures the user experience.

[0038] From the following detailed description of specific embodiments of the present utility model in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present utility model. Brief Description of the Drawings

[0039] Some specific embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 is one of the schematic diagrams of the embedded connection between the embedded air conditioner indoor unit and the cabinet according to an embodiment of the present utility model;

[0041] Figure 2 is one of the cross-sectional schematic diagrams of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0042] Figure 3 is the second cross-sectional schematic diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0043] Figure 4 is the explosion schematic diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model;

[0044] Figure 5 is the second schematic diagram of the embedded connection between the embedded air conditioner indoor unit and the cabinet according to an embodiment of the present utility model. Detailed implementation manners

[0045] In the description of this embodiment, it should be understood that the orientation or positional relationship indicated by terms such as "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0046] The terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0047] Unless otherwise clearly specified and defined, terms such as "installed", "set", "connected", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0048] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath", or "underneath" the second feature may be the first feature being directly below or obliquely below the second feature, or merely indicating that the first feature is at a lower horizontal level than the second feature.

[0049] Unless otherwise limited, all terms (including technical terms and scientific terms) used in the description of this embodiment have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0050] In the description of this embodiment, the descriptions referring to terms such as "this embodiment", "the first implementation manner", "the second implementation manner", "this implementation manner", "replaceable implementation manner", etc. mean that the specific features, structures, materials, or characteristics described in connection with this embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0051] The following will Figures 1 to 5 be used to illustrate the embedded air conditioner indoor unit of this embodiment in detail. Figure 1 is one of the schematic diagrams of the embedded connection between the embedded air conditioner indoor unit and the cabinet according to an embodiment of the present utility model; Figure 2 is one of the cross-sectional schematic diagrams of the embedded air conditioner indoor unit according to an embodiment of the present utility model; Figure 3 is the second cross-sectional schematic diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model; Figure 4 is the exploded schematic diagram of the embedded air conditioner indoor unit according to an embodiment of the present utility model; Figure 5 is the second schematic diagram of the embedded connection between the embedded air conditioner indoor unit and the cabinet according to an embodiment of the present utility model.

[0052] Referring to Figure 1 , in this embodiment, the embedded air conditioner indoor unit 100 is used to be embedded in the embedding cavity 610 of the cabinet 600.

[0053] Therefore, the embedded air conditioner indoor unit 100 of this embodiment can be well integrated with the user's home environment, ensuring the aesthetics of the user's home environment and improving the user's experience.

[0054] Referring to Figure 1 , in this embodiment, an embedding cavity 610 is provided in the cabinet 600, and the embedding cavity 610 is used to accommodate the embedded air conditioner indoor unit 100.

[0055] In addition, the embedded air conditioner indoor unit 100 of this embodiment may not include the cabinet 600, or may include the cabinet 600. Specifically, the manufacturer and seller of the embedded air conditioner indoor unit 100 may produce and sell the cabinet 600 together with the embedded air conditioner indoor unit 100, or may separately produce and sell the embedded air conditioner indoor unit 100 without the cabinet 600.

[0056] Referring to Figure 1 , Figure 2 and Figure 3 , in this embodiment, the embedded air conditioner indoor unit 100 includes a housing 200 and an indoor heat exchange component 300.

[0057] The housing 200 is configured to be disposed within the recessed mounting cavity 610. An air inlet portion 210 is provided at the front end of the housing 200. An air inlet air duct 220 extending in the front-rear direction is provided within the housing 200, and the air inlet air duct 220 communicates with the air inlet portion 210.

[0058] The indoor heat exchange assembly 300 includes a first indoor heat exchanger 310 and a second indoor heat exchanger 320. The first indoor heat exchanger 310 is disposed within the air inlet air duct 220 along the front-rear direction. The front end of the first indoor heat exchanger 310 faces forward and downward, and the rear end of the first indoor heat exchanger 310 is arranged obliquely backward and upward. The second indoor heat exchanger 320 is disposed within the air inlet air duct 220 along the front-rear direction. The second indoor heat exchanger 320 is located below the first indoor heat exchanger 310. The front end of the second indoor heat exchanger 320 faces forward and upward, and the rear end of the second indoor heat exchanger 320 is arranged obliquely backward and downward. The front end of the second indoor heat exchanger 320 is connected to the front end of the first indoor heat exchanger 310.

[0059] Since the embedded air conditioner indoor unit 100 of the present embodiment employs the indoor heat exchange assembly 300 including the first indoor heat exchanger 310 and the second indoor heat exchanger 320 in the forward air inlet direction, that is, the number of indoor heat exchangers is increased in the forward air inlet direction. Furthermore, the embedded air conditioner indoor unit 100 of the present embodiment increases the cooling / heating capacity of the indoor heat exchange assembly 300 in the direction towards the air inlet 211, and can well meet the heat exchange requirements of the air flow in the forward air inlet form.

[0060] At the same time, the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged in a V shape, and the connecting ends of the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged in the direction towards the air inlet 211. That is, the first indoor heat exchanger 310 is disposed within the air inlet air duct 220 along the front-rear direction, and the front end of the first indoor heat exchanger 310 faces forward and downward and its rear end is arranged obliquely backward and upward. The second indoor heat exchanger 320 is disposed within the air inlet air duct 220 along the front-rear direction. The second indoor heat exchanger 320 is located below the first indoor heat exchanger 310, and the front end of the second indoor heat exchanger 320 faces forward and upward and its rear end is arranged obliquely backward and downward. The front end of the second indoor heat exchanger 320 is connected to the front end of the first indoor heat exchanger 310. Furthermore, the embedded air conditioner indoor unit 100 of the present embodiment increases the heat exchange area of the indoor heat exchange assembly 300 in the direction towards the air inlet 211.

[0061] Therefore, the present embodiment ensures the refrigeration / heating performance of the embedded air conditioner indoor unit 100 and ensures the user experience.

[0062] Moreover, since the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are folded in the vertical direction (connected in a V shape), the space occupied by the first indoor heat exchanger 310 and the second indoor heat exchanger 320 in the vertical direction is very small. Thus, space can be reserved above the first indoor heat exchanger 310 for further additional indoor heat exchangers or other components (such as the third indoor heat exchanger 330); if no working components of the embedded air conditioner indoor unit 100 are arranged in the space above the first indoor heat exchanger 310, and then the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are folded in the vertical direction, it is allowed for the embedded air conditioner indoor unit 100 to have a smaller height, providing more possibilities for the installation scheme of the embedded air conditioner indoor unit 100.

[0063] Referring to Figure 2 , in the first embodiment of the indoor heat exchange assembly 300 of this embodiment, a volute chamber 231 is arranged in the housing 200 below the air inlet duct 220, and the volute chamber 231 communicates with the air inlet duct 220; moreover, the embedded air conditioner indoor unit 100 further includes an indoor fan 500.

[0064] The indoor fan 500 is arranged in the volute chamber 231.

[0065] The indoor heat exchange assembly 300 is arranged in the air inlet duct 220, and the indoor heat exchange assembly 300 surrounds the front, rear, and upper sides of the indoor fan 500.

[0066] Since the embedded air conditioner indoor unit 100 of this embodiment connects the volute chamber 231 upward to the air inlet duct 220, and surrounds the indoor heat exchange assembly 300 around the front, rear, and upper sides of the indoor fan 500, that is, arranges the indoor heat exchange assembly 300 on the airflow path that the airflow flowing from the air inlet duct 220 into the volute chamber 231 must pass through. Thus, the situation that the airflow in the air inlet duct 220 flows directly into the volute chamber 231 without passing through the indoor heat exchange assembly 300 can be effectively avoided; at the same time, according to the airflow characteristics on the air inlet side of the indoor fan 500, the airflow will be distributed in front of, above, and behind the indoor fan 500, that is, flow into the volute chamber 231 from the front, above, and behind the indoor fan 500. Therefore, the embedded air conditioner indoor unit 100 of this embodiment surrounds the indoor heat exchange assembly 300 around the front, rear, and upper sides of the indoor fan 500, and the airflow flowing from the air inlet duct 220 into the volute chamber 231 can complete heat exchange with the indoor heat exchange assembly 300 very efficiently, which can well ensure the heat exchange efficiency between the indoor heat exchange assembly 300 and the airflow flowing from the air inlet duct 220 into the volute chamber 231. The above can further ensure the refrigeration / heating performance of the embedded air conditioner indoor unit 100 and ensure the user experience.

[0067] Referring to Figure 2, in this embodiment, the indoor heat exchange assembly 300 includes a third indoor heat exchanger 330 and a fourth indoor heat exchanger 340.

[0068] The third indoor heat exchanger 330 is arranged in the air inlet duct 220 in the vertical direction. The top end of the third indoor heat exchanger 330 is inclined backward and upward, and the bottom end is inclined forward and downward, and is arranged in front of and above the indoor fan 500. And the bottom end of the third indoor heat exchanger 330 is connected to the rear end of the first indoor heat exchanger 310.

[0069] The fourth indoor heat exchanger 340 is arranged in the air inlet duct 220 in the vertical direction. The top end of the fourth indoor heat exchanger 340 is inclined forward and upward, and the bottom end is inclined backward and downward, and is arranged behind and above the indoor fan 500. And the top end of the fourth indoor heat exchanger 340 is connected to the top end of the third indoor heat exchanger 330, and the bottom end of the fourth indoor heat exchanger 340 is arranged behind the volute chamber 231.

[0070] It can be understood that through the arrangement of the first indoor heat exchanger 310, the second indoor heat exchanger 320, the third indoor heat exchanger 330 and the fourth indoor heat exchanger 340, the indoor heat exchange assembly 300 can be surrounded in front of, behind and above the indoor fan 500.

[0071] At the same time, by arranging the third indoor heat exchanger 330 obliquely as described above, the third indoor heat exchanger 330 can guide the water body attached thereto to flow onto the first indoor heat exchanger 310. And according to the description in the following embodiments, the condensed water / water body on the first indoor heat exchanger 310 and the second indoor heat exchanger 320 will flow to the main water receiving tray 232. And by arranging the fourth indoor heat exchanger 340 obliquely as described above, the fourth indoor heat exchanger 340 can guide the water body attached thereto to flow into the auxiliary water receiving tray 233 in the following embodiments. In this way, it can be avoided that the water body / condensed water on the indoor heat exchange assembly 300 falls to the ground in the indoor space, ensuring the cleanliness of the indoor space and the user experience.

[0072] Refer to Figure 2 , in this embodiment, the included angle q between the third indoor heat exchanger 330 and the horizontal plane is greater than the included angle a between the first indoor heat exchanger 310 and the horizontal plane, and the included angle q between the third indoor heat exchanger 330 and the horizontal plane is greater than the included angle b between the second indoor heat exchanger 320 and the horizontal plane.

[0073] It can be understood that by setting the included angle between the third indoor heat exchanger 330 and the horizontal plane to be greater than the included angle between the first indoor heat exchanger 310 and the horizontal plane and greater than the included angle between the second indoor heat exchanger 320 and the horizontal plane, the smoothness of the water body attached to the third indoor heat exchanger 330 flowing onto the first indoor heat exchanger 310 can be further ensured, and the user experience can be further guaranteed.

[0074] Reference Figure 2 Figure 2 , in this embodiment, the included angle p between the fourth indoor heat exchanger 340 and the horizontal plane is greater than the included angle a between the first indoor heat exchanger 310 and the horizontal plane, and the included angle p between the fourth indoor heat exchanger 340 and the horizontal plane is greater than the included angle b between the second indoor heat exchanger 320 and the horizontal plane.

[0075] It can be understood that setting the included angle between the fourth indoor heat exchanger 340 and the horizontal plane to be greater than the included angle between the first indoor heat exchanger 310 and the horizontal plane and greater than the included angle between the second indoor heat exchanger 320 and the horizontal plane can further ensure the smoothness of the water flow attached to the fourth indoor heat exchanger 340 flowing into the auxiliary water receiving tray 233, and further ensure the user experience.

[0076] Reference Figure 2 Figure 2 , in this embodiment, the embedded air conditioner indoor unit 100 further includes a main water receiving tray 232 and an auxiliary water receiving tray 233.

[0077] The main water receiving tray 232 is arranged at the bottom of the air inlet duct 220, in front of the volute chamber 231, below the second indoor heat exchanger 320, and is used to receive the water bodies falling from the first indoor heat exchanger 310 and the second indoor heat exchanger 320.

[0078] The auxiliary water receiving tray 233 is arranged at the bottom of the air inlet duct 220, behind the volute chamber 231, below the fourth indoor heat exchanger 340, and is used to receive the water bodies falling from the fourth indoor heat exchanger 340.

[0079] It can be understood that the main water receiving tray 232 and the auxiliary water receiving tray 233 can prevent the water bodies / condensate on the indoor heat exchange assembly 300 from falling onto the ground in the indoor space, ensure the cleanliness of the indoor space, and ensure the user experience.

[0080] In addition, the main water receiving tray 232 and the auxiliary water receiving tray 233 can be interconnected, and the horizontal height of the auxiliary water receiving tray 233 can be set higher than that of the main water receiving tray 232. At the same time, a drainage water pipe connecting to the outdoor space is connected to the main water receiving tray 232. Furthermore, the condensate in the auxiliary water receiving tray 233 can flow into the main water receiving tray 232; and when the water body in the main water receiving tray 232 reaches a preset height, it will be discharged to the outdoor space through the drainage pipe.

[0081] Reference Figure 2, in this embodiment, the rear end of the second indoor heat exchanger 320 is connected to the main water receiving tray 232; and the bottom end of the fourth indoor heat exchanger 340 is connected to the secondary water receiving tray 233. Further, the first indoor heat exchanger 310, the second indoor heat exchanger 320, the third indoor heat exchanger 330, and the fourth indoor heat exchanger 340 can be arranged in the air inlet duct 220.

[0082] Referring to Figure 2 , in this embodiment, the housing 200 includes a base 230.

[0083] The base 230 is located below the air inlet duct 220. The volute chamber 231 is formed on the base 230. The main water receiving tray 232 is located on the base 230. The secondary water receiving tray 233 is located on the base 230.

[0084] It can be understood that by arranging the main water receiving tray 232 and the secondary water receiving tray 233 on the base 230, the indoor heat exchange assembly 300 can be arranged on the base 230, and the base 230 is made to bear most of the weight of the indoor heat exchange assembly 300. The base 230 is provided on the lower bottom plate 244 of the surrounding frame 240 in the following embodiment. And when the embedded air conditioner indoor unit 100 is installed in the cabinet 600, the surrounding frame 240 can be connected to the cabinet 600 to achieve the installation. Therefore, the embedded air conditioner indoor unit 100 in this embodiment can well ensure the stability of the installation and arrangement of the indoor heat exchange assembly 300.

[0085] In addition, the configuration of the indoor fan 500 and the volute chamber 231 on the base 230 can cause the air flow flowing from the air inlet part 210 into the air inlet duct 220 to flow through the indoor heat exchange assembly 300 and then into the volute chamber 231, and cause the air flow in the volute chamber 231 to flow out into the indoor space through the air outlet duct 234 and the air outlet 260 in the following embodiment, completing functions such as heating, cooling, or ventilation.

[0086] Referring to Figure 4 , in this embodiment, the housing 200 includes a surrounding frame 240.

[0087] The surrounding frame 240 surrounds the upper, bottom, left, and right sides of the base 230. The air inlet duct 220 is located between the surrounding frame 240 and the base 230. To achieve the construction of the housing 200 and the air inlet duct 220.

[0088] Referring to Figure 3 , in the second embodiment of the indoor heat exchange assembly 300 in this embodiment, the top of the indoor heat exchange assembly 300 is connected to the top of the air inlet duct 220, and the bottom of the indoor heat exchange assembly 300 is connected to the bottom of the air inlet duct 220.

[0089] It should be noted that in the first embodiment of the indoor heat exchange assembly 300 described above, the indoor heat exchange assembly 300 is surrounded in front of, behind, and above the indoor fan 500. Most of the air flow entering the air inlet duct 220 in the forward air intake form will pass through the first indoor heat exchanger 310, the second indoor heat exchanger 320, and the third indoor heat exchanger 330 for heat exchange, while a small part of the air flow will pass through the gap between the upper part of the third indoor heat exchanger 330 and the housing 200 (the upper top plate 243 of the surrounding frame 240), flow to the rear of the indoor fan 500, and exchange heat with the fourth indoor heat exchanger 340. In this way, the heat / cold on the fourth indoor heat exchanger 340 cannot be completely carried into the indoor space by a sufficient amount of air flow, which may cause the fourth indoor heat exchanger 340 to become overcooled / overheated, thereby reducing the heat exchange efficiency of the indoor heat exchange assembly 300, reducing the cooling / heating performance of the embedded air conditioner indoor unit 100, and even possibly causing the embedded air conditioner indoor unit 100 to stop, thus reducing the user experience.

[0090] However, in the indoor heat exchange assembly 300 of this embodiment, since its top is connected to the top of the air inlet duct 220 and the bottom of the indoor heat exchange assembly 300 is connected to the bottom of the air inlet duct 220, the entire indoor heat exchange assembly 300 faces the air inlet direction (or faces the air inlet 211). A large amount of air flow entering the air inlet duct 220 in the forward air intake form can fully meet the heat exchange requirements of the indoor heat exchange assembly 300, and can completely carry the cold / heat on the indoor heat exchange assembly 300 into the indoor space, avoiding the situation that part of the indoor heat exchange assembly 300 may become overcooled / overheated and the embedded air conditioner indoor unit 100 stops, ensuring the heat exchange efficiency of the indoor heat exchange assembly 300. Therefore, the embedded air conditioner indoor unit 100 of this embodiment can further ensure the cooling / heating performance of the embedded air conditioner indoor unit 100 and ensure the user experience.

[0091] Refer to Figure 3 , in this embodiment, the indoor heat exchange assembly 300 further includes a third indoor heat exchanger 330.

[0092] The third indoor heat exchanger 330 is arranged in the air inlet duct 220 in the up-down direction. The third indoor heat exchanger 330 is located above the first indoor heat exchanger 310. The top end of the third indoor heat exchanger 330 is connected to the top of the air inlet duct 220, and the bottom end of the third indoor heat exchanger 330 is connected to the rear end of the first indoor heat exchanger 310. To enable the indoor heat exchange assembly 300 to achieve its top being connected to the top of the air inlet duct 220 and the bottom of the indoor heat exchange assembly 300 being connected to the bottom of the air inlet duct 220.

[0093] In an alternative embodiment, the indoor heat exchange assembly 300 further includes a plurality of vertically-folded indoor heat exchangers disposed above the first indoor heat exchanger 310 (for example, adding two more indoor heat exchangers connected in a V shape above the first indoor heat exchanger 310, and the connection ends of the two indoor heat exchangers face the air inlet portion 210; or adding three more indoor heat exchangers connected in a W shape above the first indoor heat exchanger 310, and the connection ends of adjacent two indoor heat exchangers face the air inlet portion 210), so as to enable the top of the indoor heat exchange assembly 300 to be connected to the top of the air inlet duct 220, and the bottom of the indoor heat exchange assembly 300 to be connected to the bottom of the air inlet duct 220.

[0094] Meanwhile, the plurality of vertically-folded indoor heat exchangers can further increase the cooling / heating capacity of the indoor heat exchange assembly 300 in the direction towards the air inlet 211, meeting the heat exchange requirements of the forward air flow form; and further increase the heat exchange area of the indoor heat exchange assembly 300 in the direction towards the air inlet 211. Moreover, in the case of having the same heat exchange performance, compared with the built-in air conditioner with only one third indoor heat exchanger 330, the built-in air conditioner with the plurality of vertically-folded indoor heat exchangers above the first indoor heat exchanger 310 can have a smaller height.

[0095] Refer to Figure 3 , in this embodiment, the top end of the third indoor heat exchanger 330 is inclined backward and upward, and the bottom end is inclined forward and downward, so as to cause the water body attached to the third indoor heat exchanger 330 to flow towards the first indoor heat exchanger 310.

[0096] It can be understood that through the inclined arrangement of the third indoor heat exchanger 330, the third indoor heat exchanger 330 can have a larger heat exchange surface, so as to further improve the heat exchange efficiency of the indoor heat exchange assembly 300, further ensure the cooling / heating performance of the built-in air conditioner indoor unit 100, and ensure the user experience.

[0097] Moreover, according to the description in the following embodiments, the condensed water / water body on the first indoor heat exchanger 310 and the second indoor heat exchanger 320 will flow to the main water receiving tray 232. Furthermore, the top end of the third indoor heat exchanger 330 is inclined backward and upward, and the bottom end is inclined forward and downward, which can prevent the water body / condensed water on the indoor heat exchange assembly 300 from falling onto the ground in the indoor space, ensuring the cleanliness of the indoor space and the user experience.

[0098] Refer to Figure 3 , in this embodiment, the angle q between the third indoor heat exchanger 330 and the horizontal plane is greater than the angle a between the first indoor heat exchanger 310 and the horizontal plane; and the angle q between the third indoor heat exchanger 330 and the horizontal plane is greater than the angle b between the second indoor heat exchanger 320 and the horizontal plane.

[0099] It can be understood that setting the included angle between the third indoor heat exchanger 330 and the horizontal plane to be greater than the included angle between the first indoor heat exchanger 310 and the horizontal plane and greater than the included angle between the second indoor heat exchanger 320 and the horizontal plane can further ensure the smoothness of the water body attached to the third indoor heat exchanger 330 flowing to the first indoor heat exchanger 310, and further ensure the user experience.

[0100] Refer to Figure 3 In this embodiment, the embedded air conditioner indoor unit 100 further includes a main water receiving tray 232.

[0101] The main water receiving tray 232 is arranged at the bottom of the air inlet duct 220, the main water receiving tray 232 is located below the second indoor heat exchanger 320, the main water receiving tray 232 is used for receiving the water bodies falling from the first indoor heat exchanger 310 and the second indoor heat exchanger 320, and the rear end of the second indoor heat exchanger 320 is connected to the main water receiving tray 232.

[0102] It can be understood that the main water receiving tray 232 can prevent the water bodies / condensate on the indoor heat exchange assembly 300 from falling onto the ground in the indoor space, ensure the cleanliness of the indoor space, and ensure the user experience.

[0103] Moreover, connecting the rear end of the second indoor heat exchanger 320 to the main water receiving tray 232 can realize the arrangement of the first indoor heat exchanger 310 and the second indoor heat exchanger 320 in the air inlet duct 220.

[0104] In addition, since the water bodies or condensate on the first indoor heat exchanger 310, the second indoor heat exchanger 320, and the third indoor heat exchanger 330 will flow into the main evaporator, furthermore, the embedded air conditioner indoor unit 100 of this embodiment does not need to be additionally provided with a secondary water receiving tray 233 behind the volute chamber 231, so as to reduce the thickness of the embedded air conditioner indoor unit 100 in the front-rear direction and ensure the compactness of the embedded air conditioner indoor unit 100. At the same time, the production cost of the embedded air conditioner indoor unit 100 is reduced.

[0105] Refer to Figure 3 In this embodiment, the housing 200 includes a base 230. The embedded air conditioner indoor unit 100 further includes an indoor fan 500.

[0106] A volute chamber 231 communicating with the air inlet duct 220 is arranged on the base 230.

[0107] The indoor fan 500 is arranged in the volute chamber 231, and the indoor fan 500 is used to make the air flow flowing into the air inlet duct 220 from the air inlet part 210 flow through the indoor heat exchange assembly 300 and then flow into the volute chamber 231.

[0108] It can be understood that, through the settings of the volute chamber 231 and the indoor fan 500, the air flow flowing from the air inlet part 210 into the air inlet duct 220 can be made to flow through the indoor heat exchange assembly 300 and then into the volute chamber 231, and the air flow in the volute chamber 231 can be made to flow out into the indoor space through the air outlet duct 234 and the air outlet 260 in the following embodiments, thus completing functions such as heating, cooling or ventilation.

[0109] Referring to Figure 3 , in this embodiment, at least part of the third indoor heat exchanger 330 is located above the indoor fan 500.

[0110] It can be understood that at least part of the third indoor heat exchanger 330 is located above the indoor fan 500 to make the third indoor heat exchanger 330 surround the indoor fan 500 as much as possible, and make the indoor heat exchange assembly 300 surround the indoor fan 500 as much as possible, so as to further ensure the refrigeration / heating performance of the embedded air conditioner indoor unit 100 and ensure the user experience.

[0111] Referring to Figure 4 , in this embodiment, the housing 200 includes a surrounding frame 240.

[0112] The surrounding frame 240 surrounds the upper, bottom, left and right sides of the base 230. The air inlet duct 220 is located between the surrounding frame 240 and the base 230 and above the base 230; and, the top end of the third indoor heat exchanger 330 is connected to the top of the surrounding frame 240; and, the main water receiving tray 232 is located on the base 230 and in front of the volute chamber 231, and both the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged in front of the indoor fan 500.

[0113] It can be understood that, through the settings of the surrounding frame 240 and the base 230, the construction of the housing 200 and the air inlet duct 220 can be realized.

[0114] Moreover, by locating the main water receiving tray 232 on the base 230, the first indoor heat exchanger 310 and the second indoor heat exchanger 320 can be arranged on the base 230, and the base 230 can be made to bear most of the weight of the indoor heat exchange assembly 300. And the base 230 is set on the lower bottom plate 244 of the surrounding frame 240 in the following embodiment. When the embedded air conditioner indoor unit 100 is installed in the cabinet 600, the surrounding frame 240 can be connected to the cabinet 600 to realize the installation. Therefore, the embedded air conditioner indoor unit 100 in this embodiment can well ensure the stability of the installation and configuration of the indoor heat exchange assembly 300.

[0115] Moreover, the top end of the third indoor heat exchanger 330 is connected to the top of the surrounding frame 240 to further ensure the stability of the installation configuration of the indoor heat exchange assembly 300.

[0116] Meanwhile, the main water receiving tray 232 is located in front of the volute chamber 231, and both the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged in front of the indoor fan 500 to configure the position of the indoor heat exchange assembly 300 and ensure the rationality of the layout of the internal working components of the embedded air conditioner indoor unit 100.

[0117] Refer to Figure 4 In this embodiment, the surrounding frame 240 includes a left side plate 241, a right side plate 242, an upper top plate 243 connected between the left side plate 241 and the right side plate 242, and a lower bottom plate 244 connected between the left side plate 241 and the right side plate 242. The upper top plate 243 is located above the lower bottom plate 244 to realize the construction of the surrounding frame 240.

[0118] Refer to Figure 1 and Figure 4 In this embodiment, the base 230 is disposed on the lower bottom plate 244, and the base 230 is located between the left side plate 241, the right side plate 242, the upper top plate 243, and the lower bottom plate 244 to realize the configuration of the base 230 within the surrounding frame 240.

[0119] It can be understood that by disposing the base 230 on the lower bottom plate 244, the weight of the base 230 and the components disposed thereon will be borne by the surrounding frame 240. When the embedded air conditioner indoor unit 100 is installed in the cabinet 600, the surrounding frame 240 can be connected to the cabinet 600 to realize the installation, which can well ensure the stability of the installation configuration of the indoor heat exchange assembly 300 and other components of the embedded air conditioner indoor unit 100.

[0120] Refer to Figure 4 In the first implementation manner of the air inlet part 210 in this embodiment, the housing 200 may include a front panel cover 250 for defining the front appearance of the embedded air conditioner indoor unit 100.

[0121] The front panel cover 250 covers the front end of the surrounding frame 240, and the front panel cover 250 is located in front of the base 230. The air inlet duct 220 is located between the surrounding frame 240, the base 230, and the front panel cover 250. Moreover, the air inlet part 210 may include an air inlet 211 opened on the front panel cover 250. An air outlet 260 is opened on the front panel cover 250 below the air inlet 211, and an air outlet duct 234 communicating between the volute chamber 231 and the air outlet 260 is opened in the base 230.

[0122] It can be understood that by setting the surrounding frame 240, the base 230 and the front panel cover 250, the housing 200 and the air inlet duct 220 are constructed.

[0123] Moreover, the air inlet part 210 can be an air inlet 211 opened on the front panel cover 250. Meanwhile, by configuring the air outlet duct 234 and the air outlet 260, the embedded air conditioner indoor unit 100 is enabled to perform functions such as refrigeration, heating or ventilation.

[0124] Refer to Figure 4 , in this embodiment, the housing 200 further includes a wind guiding plate 270. The wind guiding plate 270 is rotatably connected to the front panel cover 250, and the wind guiding plate 270 has a state of closing the air inlet 211 and a state of opening the air inlet 211. And when the wind guiding plate 270 is in the state of opening the air inlet 211, the top end of the wind guiding plate 270 inclines forward and upward, the bottom end inclines backward and downward, and the bottom end of the wind guiding plate 270 is located between the air inlet 211 and the air outlet 260.

[0125] It can be understood that when the wind guiding plate 270 is in the state of opening the air inlet 211, the wind guiding plate 270 can guide the air flow in the front upper part of the embedded air conditioner indoor unit 100 to flow into the air inlet duct 220 along the back lower part through the air inlet 211. At the same time, since the wind guiding plate 270 can divide the air inlet 211 and the air outlet 260 into two relatively separated areas in a certain space, it can avoid the interference between the air flow entering the air inlet duct 220 from the air inlet 211 and the air flow flowing out of the air outlet duct 234 from the air outlet 260, ensure the working performance of the embedded air conditioner indoor unit 100, and ensure the user experience.

[0126] Refer to Figure 5 , in the second embodiment of the air inlet part 210 of this embodiment, the air inlet part 210 includes an air inlet gap 212 located between the upper top plate 243, the left side plate 241, the right side plate 242 of the surrounding frame 240 and the base 230; moreover, an air outlet 260 is provided on the base 230 below the air inlet gap 212, and an air outlet duct 234 communicating between the volute chamber 231 and the air outlet 260 is opened in the base 230.

[0127] It can be understood that in the embedded air conditioner indoor unit 100 of this embodiment, a front panel cover 250 for defining the front appearance of the embedded air conditioner indoor unit 100 may not be provided in front of the surrounding frame 240 and the base 230. Further, the air inlet part 210 can be the air inlet gap 212 located between the upper top plate 243, the left side plate 241, the right side plate 242 of the surrounding frame 240 and the base 230.

[0128] Moreover, through the configuration of the air outlet duct 234 and the air outlet 260, the embedded air conditioner indoor unit 100 is enabled to perform functions such as refrigeration, heating, or ventilation.

[0129] Referring to Figure 5 , in the present embodiment, the housing 200 further includes a wind guiding plate 270. The wind guiding plate 270 is rotatably connected to the base 230, and the wind guiding plate 270 has a state of blocking the air inlet gap 212 and a state of opening the air inlet gap 212. When the wind guiding plate 270 is in the state of opening the air inlet gap 212, the top end of the wind guiding plate 270 inclines forward and upward, the bottom end inclines backward and downward, and the bottom end of the wind guiding plate 270 is located between the air inlet gap 212 and the air outlet 260.

[0130] It can be understood that when the wind guiding plate 270 is in the state of opening the air inlet gap 212, the wind guiding plate 270 can guide the air flow above the front of the embedded air conditioner indoor unit 100 to flow into the air inlet duct 220 through the air inlet gap 212 along the backward and downward direction. At the same time, since the wind guiding plate 270 can divide the air inlet gap 212 and the air outlet 260 into two relatively separated regions in a certain space, it can prevent the air flow entering the air inlet duct 220 from the air inlet gap 212 and the air flow flowing out of the air outlet duct 234 from the air outlet 260 from interfering with each other, ensuring the working performance of the embedded air conditioner indoor unit 100 and the user experience.

[0131] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. An embedded air conditioner indoor unit, characterized in that: Used to be embedded in the embedded cavity of the cabinet, including: A shell, used to be arranged in the embedding cavity, with an air inlet portion arranged at its front end, an air inlet duct extending in the front-to-back direction arranged therein, and the air inlet duct is connected to the air inlet portion; Indoor heat exchange components, including: A first indoor heat exchanger is arranged in the air inlet duct along the front-to-back direction, with its front end facing forward and downward and its rear end facing backward and upward; The second indoor heat exchanger is arranged in the air inlet duct along the front-to-back direction and is located below the first indoor heat exchanger. Its front end is inclined toward the front and upper part and its rear end is inclined toward the rear and lower part. Its front end is connected to the front end of the first indoor heat exchanger.

2. The embedded air conditioner indoor unit according to claim 1, characterized in that: The top of the indoor heat exchange component is connected to the top of the air inlet duct, and the bottom of the indoor heat exchange component is connected to the bottom of the air inlet duct.

3. The embedded air conditioner indoor unit according to claim 1, characterized in that: The indoor heat exchange component also includes: The third indoor heat exchanger is arranged in the air inlet duct along the up-down direction and is located above the first indoor heat exchanger. Its top end is connected to the top of the air inlet duct and its bottom end is connected to the rear end of the first indoor heat exchanger.

4. The embedded air conditioner indoor unit according to claim 3, characterized in that: The top end of the third indoor heat exchanger is inclined toward the upper rear end and the bottom end is inclined toward the lower front end, so as to promote the water attached to the third indoor heat exchanger to flow toward the first indoor heat exchanger.

5. The embedded air conditioner indoor unit according to claim 3, characterized in that: The angle between the third indoor heat exchanger and the horizontal plane is greater than the angle between the first indoor heat exchanger and the horizontal plane; and, The angle between the third indoor heat exchanger and the horizontal plane is greater than the angle between the second indoor heat exchanger and the horizontal plane.

6. The embedded air conditioner indoor unit according to claim 3, characterized in that: Also includes: The main water receiving pan is arranged at the bottom of the air inlet duct and below the second indoor heat exchanger, and is used to receive water dropped from the first indoor heat exchanger and the second indoor heat exchanger, and the rear end of the second indoor heat exchanger is connected to the main water receiving pan.

7. The embedded air conditioner indoor unit according to claim 6, characterized in that: The housing comprises: a base, on which a volute cavity connected to the air inlet duct is disposed; and, The embedded air conditioner indoor unit also includes: The indoor fan is arranged in the volute cavity and is used for causing the airflow flowing from the air inlet portion into the air inlet duct to flow through the indoor heat exchange component and then flow into the volute cavity.

8. The embedded air conditioner indoor unit according to claim 7, characterized in that: At least a portion of the third indoor heat exchanger is located above the indoor fan.

9. The embedded air conditioner indoor unit according to claim 7, characterized in that: The housing comprises: a surrounding frame, arranged on the top, bottom, left side and right side of the base, the air inlet duct being located between the surrounding frame and the base, and the air inlet duct being located above the base; and, The top end of the third indoor heat exchanger is connected to the top of the enclosure frame; and The main water receiving pan is located on the base, and the main water receiving pan is located in front of the volute cavity, and the first indoor heat exchanger and the second indoor heat exchanger are both arranged in front of the indoor fan.

10. The embedded air conditioner indoor unit according to claim 9, characterized in that: The housing further comprises: a front panel cover, which is covered at the front end of the surrounding frame and is located in front of the base, and the air inlet duct is located between the surrounding frame, the base and the front panel cover; and, The air inlet portion comprises an air inlet opened on the front panel cover, an air outlet located below the air inlet is opened on the front panel cover, and an air outlet duct connected between the volute and the air outlet is opened in the base.

11. An embedded air conditioner indoor unit, characterized in that: include: A cabinet body having an embedded cavity therein; A shell, used to be arranged in the embedding cavity, with an air inlet portion arranged at its front end, an air inlet duct extending in the front-to-back direction arranged therein, and the air inlet duct is connected to the air inlet portion; Indoor heat exchange components, including: The first indoor heat exchanger is arranged in the air inlet duct along the front-to-back direction, with its front end facing forward and downward and its rear end facing backward and upward. The second indoor heat exchanger is arranged in the air inlet duct and is located below the first indoor heat exchanger. Its front end is inclined toward the front and upward and its rear end is inclined toward the rear and downward, and its front end is connected to the front end of the first indoor heat exchanger.

Images