Double-fan cabinet type air conditioner indoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses a double-fan cabinet type air conditioner indoor unit, a first air duct and a second air duct are arranged in a shell, a fan assembly comprises a first fan and a second fan, the first fan communicates with an upper air outlet through the first air duct, and the second fan communicates with a side air outlet through the second air duct. The heat exchanger comprises a first heat exchange part arranged on the air inlet side of the first fan and a second heat exchange part arranged on the air inlet side of the second fan, the heat exchanger comprises a first heat exchange section, a second heat exchange section and a first heat exchange connecting position arranged between the first heat exchange section and the second heat exchange section in the width direction, and the first heat exchange connecting position is connected with the second heat exchange section in the width direction. The sum of the widths of the first heat exchange section, the second heat exchange section and the first heat exchange connection position is smaller than or equal to the first preset width. According to the double-fan cabinet type air conditioner indoor unit, the two fans are arranged at the same time, and the air outlet effect of the air conditioner indoor unit is improved. The utility model further discloses the air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, for example to a double-fan cabinet type air conditioner indoor unit and air conditioner. BACKGROUND

[0002] An air conditioner is a common electrical appliance for improving the indoor environment of a user, and the size of the temperature regulation capacity and the air supply mode of the air conditioner are related to the experience of the user during use of the air conditioner.

[0003] Taking a floor type air conditioner as an example, at present, the shell of the floor type air conditioner is provided with a front air outlet, and a fan is arranged in the shell to realize air outlet. No matter whether the air conditioner is running in a heating mode, a cooling mode or a dehumidification mode, the air outlet mode of the floor type air conditioner is forward air supply.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] The air outlet mode of the existing air conditioner is relatively single, which affects the user experience.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE INVENTION

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general review, nor is it intended to determine key / important elements or delineate the scope of protection of these embodiments, but is intended as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a double-fan cabinet type air conditioner indoor unit and air conditioner to solve the problem that the air outlet mode of the air conditioner is single and affects the user experience.

[0009] In some embodiments, the double-fan cabinet air conditioner indoor unit comprises: a shell, internally provided with a first air duct and a second air duct, and an upper portion of the shell is provided with an upper air outlet in communication with the first air duct, and a side portion of the shell is provided with a side air outlet in communication with the second air duct; a fan assembly comprising a first fan and a second fan, and the first fan is in communication with the upper air outlet through the first air duct for upper air outlet, and the second fan is in communication with the side air outlet through the second air duct for side air supply; and a heat exchanger provided in the shell, comprising a first heat exchange portion provided at an air inlet side of the first fan, and a second heat exchange portion provided at an air inlet side of the second fan, wherein the heat exchanger comprises a first heat exchange section, a second heat exchange section and a first heat exchange connecting position provided between the first heat exchange section and the second heat exchange section along the width direction, and the sum of the widths of the first heat exchange section, the second heat exchange section and the first heat exchange connecting position is less than or equal to a first preset width.

[0010] In some optional embodiments, the first preset width is less than or equal to 500 mm.

[0011] In some optional embodiments, the first heat exchange connecting position is an arc-shaped heat exchange section, and the bending radius of the arc-shaped heat exchange section is R, wherein 50 mm≤R≤180 mm.

[0012] In some optional embodiments, 60 mm≤R≤75 mm.

[0013] In some optional embodiments, the first heat exchange connecting position comprises an inner arc-shaped section and an outer arc-shaped section, wherein the arc length of the inner arc-shaped section is greater than or equal to 5 mm.

[0014] In some optional embodiments, the first fan is arranged at a lower portion of the second fan, and the first air duct is arranged at one side of the second air duct.

[0015] In some optional embodiments, the side air outlet comprises a first side air outlet and a second side air outlet, the second air duct comprises a first side portion air duct in communication with the first side air outlet, and a second side portion air duct in communication with the second side air outlet, wherein the first air duct is arranged at one side of the second side portion air duct.

[0016] In some optional embodiments, both ends of the second fan are provided with a first air duct partition plate and a second air duct partition plate, the first air duct partition plate is arranged at an upper portion of the second air duct partition plate, wherein the first air duct partition plate is provided with a first air duct opening in communication with the first air duct, and the second air duct partition plate is provided with a second air duct opening in communication with the first air duct.

[0017] In some optional embodiments, the first fan comprises a centrifugal fan, and the second fan comprises a cross-flow fan, wherein the first fan is arranged at a lower portion of the second fan.

[0018] In some embodiments, the air conditioner comprises a double-fan cabinet type air conditioner indoor unit as described above.

[0019] The double-fan cabinet type air conditioner indoor unit and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The double-fan cabinet type air conditioner indoor unit comprises a shell, a fan assembly and a heat exchanger arranged in the shell. The shell is internally provided with a first air duct and a second air duct, and the upper part of the shell is provided with an upper air outlet in communication with the first air duct, and the side part of the shell is provided with a side air outlet in communication with the second air duct. The fan assembly comprises a first fan and a second fan, and the first fan is in communication with the upper air outlet through the first air duct for upper air outlet, and the second fan is in communication with the side air outlet through the second air duct for side air supply. The heat exchanger is arranged in the shell and comprises a first heat exchange part arranged at the air inlet side of the first fan and a second heat exchange part arranged at the air inlet side of the second fan, wherein the heat exchanger comprises a first heat exchange section, a second heat exchange section and a first heat exchange connection position arranged between the first heat exchange section and the second heat exchange section along the width direction, and the sum of the widths of the first heat exchange section, the second heat exchange section and the first heat exchange connection position is less than or equal to a first preset width.

[0021] It can be seen that the shell of the double-fan cabinet type air conditioner indoor unit provided by the embodiments of the present disclosure is simultaneously provided with an upper air outlet and a side air outlet, and air is supplied by different fans respectively. The top forward air supply and the side forward air supply are simultaneously realized, the diversification of the air supply mode of the air conditioner indoor unit is improved, and the user experience is improved. Moreover, the sum of the widths of the first heat exchange section, the second heat exchange section and the first heat exchange connection position of the heat exchanger is less than or equal to the first preset width, which is beneficial to the miniaturization design of the air conditioner indoor unit.

[0022] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0024] Figure 1 is a structural schematic diagram of an air conditioner indoor unit provided by the embodiments of the present disclosure;

[0025] Figure 2 is a structural schematic diagram of another air conditioner indoor unit provided by the embodiments of the present disclosure;

[0026] Figure 3 is a structural schematic diagram of another air conditioner indoor unit provided by the embodiments of the present disclosure;

[0027] Figure 4 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0028] Figure 5 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0029] Figure 6 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0030] Figure 7 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 8 is Figure 7 is an enlarged view of a selected portion of

[0032] Figure 9 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0033] Figure 10 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0034] Figure 11 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0035] Figure 12 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0036] Figure 13 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0037] Figure 14 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0038] Figure 15 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0039] Figure 16 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0040] Figure 17 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0041] Figure 18 is Figure 17 is an enlarged view of a selected portion of

[0042] Figure 19 is Figure 17Another enlarged view of the selected part;

[0043] Figure 20 Another structure schematic view of the air conditioner indoor unit provided by the embodiment of the present disclosure is shown in FIG. 7;

[0044] Figure 21 Another structure schematic view of the air conditioner indoor unit provided by the embodiment of the present disclosure is shown in FIG. 7;

[0045] Figure 22 Another structure schematic view of the air conditioner indoor unit provided by the embodiment of the present disclosure is shown in FIG. 7;

[0046] Figure 23 A structure schematic view of the heat exchanger provided by the embodiment of the present disclosure is shown in FIG. 8;

[0047] Figure 24 Another structure schematic view of the heat exchanger provided by the embodiment of the present disclosure is shown in FIG. 8.

[0048] Reference signs:

[0049] 1: first fan; 11: first air duct; 101: upper air outlet;

[0050] 2: second fan; 21: first side air duct; 22: second side air duct; 23: total air outlet duct; 201: first side air outlet; 202: second side air outlet; 221: outer wall of the second side air duct; 222: outer wall of the machine shell; 223: first position; 2231: first separation point; 2232: second separation point; 224: first side air duct plate; 225: second side air duct plate; 2251: first side plate segment; 2252: second side plate segment; 226: air separation plate assembly; 2261: first guide plate; 2262: second guide plate; 2263: third guide plate; 2264: air separation front end; 2271: first guide inner wall; 2272: second guide inner wall; 228: guide plate connecting plate; 2281: first guide plate end; 2282: second guide plate end; 229: side air duct connecting position;

[0051] 31: first air duct partition plate; 301: first air duct opening; 302: second air duct opening; 3021: first edge; 3022: second edge; 3023: first starting position; 311: third partition plate side face; 3111: stop protrusion; 32: second air duct partition plate; 321: first partition plate side face; 3211: motor mounting groove; 322: second partition plate side face; 3221: impeller mounting groove; 323: partition plate edge;

[0052] 4: heat exchanger; 41: outer heat exchange side; 42: inner heat exchange side; 421: first heat exchange position; 431: first heat exchange part; 432: second heat exchange part; 433: first heat exchange section; 434: second heat exchange section; 435: first heat exchange connecting position; 436: middle heat exchange section;

[0053] 51: first side shell part; 52: second side shell part. DETAILED DESCRIPTION

[0054] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0055] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0056] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned terms can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0057] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixedly connected, detachably connected, or integrally configured; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0058] The term "multiple" represents two or more, unless otherwise specified.

[0059] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0060] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means: A or B, or, A and B, three relationships.

[0061] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0062] The present disclosure provides an air conditioner indoor unit, which can also be referred to as a vertical air conditioner indoor unit, a floor air conditioner indoor unit, a cabinet air conditioner indoor unit, a double-fan air conditioner indoor unit, or a double-fan cabinet air conditioner indoor unit, etc.

[0063] The air conditioner indoor unit provided by the embodiments of the present disclosure comprises a shell and a fan assembly. The shell is internally provided with a first air duct 11 and a second air duct, and the upper part of the shell is provided with an upper air outlet 101 which is in communication with the first air duct 11, and the side part of the shell is provided with a side air outlet which is in communication with the second air duct; the fan assembly comprises a first fan 1 and a second fan 2, and the first fan 1 is in communication with the upper air outlet 101 through the first air duct 11 for upper air outlet, and the second fan 2 is in communication with the side air outlet through the second air duct for side air supply.

[0064] Optionally, the first fan 1 is arranged at the lower part of the second fan 2, and the first air duct 11 is arranged at one side of the second air duct.

[0065] The shell of the air conditioner indoor unit provided by the embodiments of the present disclosure is simultaneously provided with the upper air outlet 101 located at the top or upper part and the side air outlet located at the side part. Optionally, the upper air outlet 101 can realize top-to-front air supply, and the side air outlet located at the middle part or lower-middle part of the shell can realize middle-to-front or side air supply of the shell. Optionally, the upper air outlet 101 is in a cylindrical shape, and the side air outlet is in a strip shape. It can be seen that the air conditioner indoor unit provided by the embodiments of the present disclosure realizes a multi-dimensional air supply mode of air supply, and improves the user experience.

[0066] The shell of the air conditioner indoor unit provided by the embodiments of the present disclosure is internally provided with a first air duct 11 and a second air duct. The first air duct 11 is in communication with the upper air outlet 101, and the first air fan 1 is arranged in the first air duct 11. The second air duct is in communication with the side air outlet, and the second air fan 2 is arranged in the second air duct. In this way, air is sent to the upper air outlet 101 and the side air outlet by the air fans arranged in different air ducts and using different air fans, so that the air supply amount and air supply temperature and other parameters of the two air outlets are not affected by each other.

[0067] Optionally, the first air duct 11 and the second air duct are arranged in isolation from each other. The air blown by the first air fan 1 is only sent out through the upper air outlet 101, and the air blown by the second air fan 2 is only sent out through the side air outlet. In this way, the air supply amount of the upper air outlet 101 and the side air outlet can be controlled by respectively adjusting the gear or the speed of the first air fan 1 and the second air fan 2, thereby improving the diversification of the air supply of the air conditioner indoor unit.

[0068] In the embodiments of the present disclosure, the first air duct 11 is arranged on one side of the second air duct, as shown in Figures 2 to 10 . The first air duct 11 is arranged vertically, and the second air duct is also arranged vertically. Of the two vertically arranged air ducts, the first air duct 11 is arranged on one side of the second air duct. Optionally, the first air duct 11 is arranged on one side of the outer wall of the second air duct.

[0069] Optionally, the side air outlet includes a first side air outlet 201 and a second side air outlet 202, and the second air duct includes a first side air duct 21 in communication with the first side air outlet 201 and a second side air duct 22 in communication with the second side air outlet 202, wherein the first air duct 11 is arranged on one side of the second side air duct 22. As shown in Figure 2 and Figure 3 .

[0070] The first side air outlet 201 is a vertically strip-shaped air outlet, and similarly, the second side air outlet 202 is a vertically strip-shaped air outlet. Optionally, the opening length of the first side air outlet 201 is the same as the opening length of the second side air outlet 202, and / or the opening width of the first side air outlet 201 is the same as the opening width of the second side air outlet 202. Optionally, the opening length of the first side air outlet 201 and the second side air outlet 202 is the same as the length of the second air fan 2.

[0071] Optionally, the extension length of the first side air duct 21 is less than or equal to the extension length of the second side air duct 22. It can be understood that the extension length of the first side air duct 21 is the length of the dashed arrow in the first side air duct 21 in Figure 3 . Similarly, the extension length of the second side air duct 22 is the length of the dashed arrow in the second side air duct 22 in Figure 3The length of the second side air duct 22 is shown by the dashed arrow. Alternatively, the first side air duct 21 and / or the second side air duct 22 is an arc-shaped air duct.

[0072] Alternatively, the second fan 2 is arranged closer to one side of the first side air duct 21, so that the reserved position of one side of the second side air duct 22 is larger, and the first air duct 11 is arranged at the side of the second side air duct 22 with the larger reserved position. In this way, the area of the first air duct 11 is increased, and the air volume of the upper air outlet 101 is increased.

[0073] Alternatively, the first air duct partition 31 and the second air duct partition 32 are arranged at both ends of the second fan 2, the first air duct partition 31 is arranged at the upper part of the second air duct partition 32, the first air duct partition 31 is provided with a first air duct opening 301 which is in communication with the first air duct 11, and the second air duct partition 32 is provided with a second air duct opening 302 which is in communication with the first air duct 11. Figure 4

[0074] The first air duct partition 31 and the second air duct partition 32 arranged at both ends of the second fan 2 can separate the first air duct 11 from the second air duct. The first air duct partition 31 and the second air duct partition 32 can serve as horizontal end plates at both ends of the second air duct. The first air duct partition 31 is provided with a first air duct opening 301 which is in communication with the first air duct 11, and the second air duct partition 32 is provided with a second air duct opening 302 which is in communication with the first air duct 11. In this way, the air blown by the first fan 1 passes through the second air duct opening 302, the first air duct 11 and the first air duct opening 301 in sequence from bottom to top, and is then sent out from the upper air outlet 101.

[0075] Alternatively, the first air duct partition 31 and / or the second air duct partition 32 are arranged in the housing along the horizontal direction, as shown in Figure 4 Alternatively, the first air duct opening 301 is arranged at the position where the first air duct 11 of the first air duct partition 31 extends upward along the vertical direction, and the opening area of the first air duct opening 301 is greater than or equal to 2 / 3 of the cross-sectional area of the first air duct 11; similarly, the second air duct opening 302 is arranged at the position where the first air duct 11 of the second air duct partition 32 extends downward along the vertical direction, and the opening area of the second air duct opening 302 is greater than or equal to 2 / 3 of the cross-sectional area of the first air duct 11. In this way, the first air duct opening 301 and the second air duct opening 302 are arranged as large as possible on the first air duct partition 31 and the second air duct partition 32 respectively, and the air resistance of the first air duct opening 301 and the second air duct opening 302 is reduced.

[0076] Alternatively, the first air duct opening 301 has a first projection in the vertical direction, the second air duct opening 302 has a second projection in the vertical direction, the first projection overlaps the second projection, or the first projection covers the second projection.​

[0077] The first air duct opening 301 is formed in the first air duct partition 31 located at the upper portion, and the second air duct opening 302 is formed in the second air duct partition 32 located at the lower portion. The first air duct opening 301 has a first projection in the vertical direction, and the second air duct opening 302 has a second projection in the vertical direction. The first projection overlaps the second projection, so that the first air duct opening 301 and the second air duct opening 302 have the same size and shape. Alternatively, the first projection covers the second projection, so that the first air duct opening 301 has a larger opening area than the second air duct opening 302, thereby reducing the air resistance of the air flowing out of the second air duct opening 302 and then flowing through the first air duct opening 301.

[0078] Optionally, the outer wall 221 of the second side air duct and the outer wall 222 of the casing of the second fan 2 near the second side air duct 22 form a first outer wall, and the first outer wall includes a first position 223 with a distance less than a preset distance. The housing includes a first side housing portion 51 near the first air duct 11, and the second air duct opening 302 is formed from the first position 223 to the first side housing portion 51. As shown in Figure 7 .

[0079] Optionally, the outer wall 222 of the casing of the second fan 2 can be the outer wall of the inlet air duct volute of the second fan 2. For example, when the second fan is a cross-flow fan, the outer wall 222 of the casing of the second fan 2 is the outer wall of the air duct volute of the cross-flow fan.

[0080] The outer wall 221 of the second side air duct is shown by the thickened line in Figure 5 , and the outer wall 222 of the casing of the second fan 2 near the second side air duct 22 is shown by the thickened line in Figure 6 . The outer wall 221 of the second side air duct and the outer wall 222 of the casing of the second fan 2 near the second side air duct 22 form a first outer wall, and the first outer wall includes a first position 223 with a distance less than a preset distance, as shown in Figure 7 . The second air duct opening 302 on the second air duct partition 32 is formed from the first position 223 to the first side housing portion 51 of the housing. In this way, the second air duct opening 302 has a generally flared shape, thereby reducing the air resistance of the second air duct opening 302.

[0081] Optionally, the first position 223 is the position with the smallest distance of the first outer wall, or one end of the first position 223 is the bending position of the outer wall 222 of the casing. In this way, the second air duct opening 302 has a generally flared shape. As shown in Figure 7 .

[0082] Optionally, the first position 223 of the first outer wall comprises a first division point 2231 close to the second side air duct 22, and a second division point 2232 away from the second side air duct 22, wherein the first outer wall comprises a first side air duct plate 224 extending from the first division point 2231 to the first side shell 51, and a second side air duct plate 225 extending from the second division point 2232 to the first side shell 51. As shown in Figure 7 and Figure 8 .

[0083] Optionally, the second division point 2232 is a bending position of the outer wall 222 of the shell. The first outer wall comprises a first side air duct plate 224 extending from the first division point 2231 to the first side shell 51, as shown by the thickened line in Figure 7 , and the first outer wall further comprises a second side air duct plate 225 extending from the second division point 2232 to the second side shell 52, as shown by the thickened line in Figure 7 .

[0084] Optionally, the second side air duct plate 225 obtains a first tangent line at the second division point 2232, wherein the first tangent line forms an angle a with the first side air duct plate 224, and 30°≤a≤150°.

[0085] As shown in Figure 8 , the second side air duct plate 225 obtains a first tangent line at the second division point 2232, and the angle a between the first tangent line and the extension line of the first side air duct plate 224 is greater than or equal to 30° and less than or equal to 150°. In this way, the second air duct opening 302 is flared from the first position 223 to the first side shell 51, and the flaring is as large as possible. Optionally, 30°≤a≤50°.

[0086] Optionally, the first edge 3021 of the second air duct opening 302 overlaps the line type of the first side air duct plate 224, and / or at least part of the second edge 3022 of the second air duct opening 302 overlaps the line type of the second side air duct plate 225. As shown in Figure 9 .

[0087] The first edge 3021 of the second air duct opening 302 overlaps the line type of the first side air duct plate 224, so that the first edge 3021 of the second air duct opening 302 can be obtained by cutting the second air duct partition plate 32 along the first side air duct plate 224. At least part of the second edge 3022 of the second air duct opening 302 overlaps the line type of the second side air duct plate 225. As shown in Figure 7 and Figure 9 .

[0088] Optionally, the second side air duct plate 225 comprises a first side plate segment 2251 and a second side plate segment 2252 connected by bending, and the first side plate segment 2251 is close to the second separation point 2232, wherein a part of the second edge 3022 of the second air duct opening 302 overlaps the line type of the first side plate segment 2251.

[0089] A part of the second edge 3022 of the second air duct opening 302 overlaps the line type of the first side plate segment 2251, or the second edge 3022 of the second air duct opening 302 completely overlaps the line type of the first side plate segment 2251. In this way, the wind blown out of the second air duct opening 302 does not form wind resistance and noise when passing through the outer wall of the second side air duct 22, and the air volume of the upper air outlet 101 is improved.

[0090] Optionally, the outer wall 221 of the second side air duct is the same as the cross section obtained at different positions of the outer wall of the casing of the second fan 2 close to the second side air duct 22 in the vertical direction.

[0091] Optionally, the line type and parameters of the opening of the first air duct opening 301 on the first air duct partition plate 31 are the same as those of the second air duct opening 302.

[0092] Optionally, the first fan 1 comprises a centrifugal fan, and the second fan 2 comprises a cross-flow fan.

[0093] Optionally, the axis of the cross-flow fan is arranged in the vertical direction, and the axis of the centrifugal fan is arranged in the horizontal direction. As shown in Figure 1 and Figure 2 .

[0094] Optionally, the cross section of the first air duct 11 comprises a first length L1 which is the longest, and the cross section of the second side air duct 22 comprises a second length L2 which is the shortest, and the ratio of L1 to L2 is greater than or equal to a first preset value.

[0095] As shown in Figure 10 , the cross section of the first air duct 11 comprises a first length L1 which is the longest, and the cross section of the second side air duct 22 comprises a second length L2 which is the shortest, and the ratio of L1 to L2 is greater than or equal to a first preset value. In this way, the area of the first air duct 11 is improved, and the air volume of the first air duct 11 is improved, and the air volume of the upper air outlet 101 is improved. Optionally, the first preset value is greater than or equal to 0.5.

[0096] Optionally, the first preset value is greater than or equal to 2.

[0097] In the embodiments of the present disclosure, the first length L1 of the first air duct 11 is at least twice the second length L2 of the second side air duct 22. In this way, the area and air volume of the first air duct 11 are improved.

[0098] Optionally, the cross-section of the first side air duct 21 includes the shortest third length L3, wherein the ratio of L2 to L3 is greater than or equal to a second preset value.

[0099] like Figure 10 As shown, the cross-section of the first side air duct 21 includes the shortest third length L3, wherein the ratio of L2 to L3 is greater than or equal to a second preset value. In this embodiment, the ratio of L2 to L3 is greater than or equal to the second preset value. Compared with the second side air duct 22, the first side air duct 21 has a shorter extension length and lower air resistance, while the second side air duct 22 has a longer extension length and higher air resistance. In this embodiment, the ratio of L2 to L3 is greater than or equal to the second preset value, resulting in a larger airflow in the second side air duct 22, balancing the airflow of the first side air duct 21 and the second side air duct 22. Optionally, the second preset value is greater than or equal to 1.

[0100] Optionally, the housing includes a first side shell portion 51 near the first air duct 11 and a second side shell portion 52 opposite to the first side shell portion 51, and the distance between the first side shell portion 51 and the second side shell portion 52 is L4, wherein the ratio of L1 to L4 is greater than or equal to a third preset value.

[0101] In this embodiment of the present disclosure, the ratio of the first length L1 of the first air duct 11 to the distance L4 between the two shell portions of the housing is greater than or equal to a third preset value, thereby increasing the airflow of the first air duct 11. Optionally, the third preset value is greater than or equal to 0.1. Optionally, 0.1≤L1 / L4≤1, or 0.2≤L1 / L4≤0.6, or 0.2≤L1 / L4≤0.5; or 0.3≤L1 / L4≤0.5; or 0.4≤L1 / L4≤0.5. Optionally, the third preset value is 0.4.

[0102] Optionally, the first fan 1 includes a centrifugal fan with a diameter ranging from 90mm to 150mm; alternatively, the centrifugal fan has a diameter of 125mm. Optionally, the second fan 2 includes a cross-flow fan with a diameter ranging from 200mm to 450mm; alternatively, the cross-flow fan has a diameter of 300mm. This increases the overall airflow from the multiple air outlets of the indoor air conditioning unit.

[0103] Optionally, a first air duct baffle 31 and a second air duct baffle 32 are provided at both ends of the second fan 2, and the second air duct baffle 32 is provided between the first fan 1 and the second fan 2.

[0104] Optionally, the first air duct assembly comprises the first air duct 11 and the first fan 1 arranged in the first air duct 11, and the second air duct assembly comprises the second air duct and the second fan 2 arranged in the second air duct. In the embodiment of the present disclosure, the second air duct partition plate 32 is arranged between the first fan 1 and the second fan 2. In this way, the first air duct 11 and the second air duct are arranged in a spaced manner by the first air duct partition plate 31 and the second air duct partition plate 32, and the first fan 1 and the second fan 2 are arranged in a spaced manner by the second air duct partition plate 32, so that the first air duct assembly and the second air duct assembly respectively perform air supply, and the controllability of the air supply amount of the first air duct assembly and the second air duct assembly is improved.

[0105] Optionally, the first air duct partition plate 31 is provided with a first air duct opening 301 which is in communication with the first air duct 11, and the second air duct partition plate 32 is provided with a second air duct opening 302 which is in communication with the first air duct 11.

[0106] Optionally, the second fan 2 comprises a second fan blade and a second driving motor for driving the second fan blade to rotate, and the second air duct partition plate 32 comprises a first partition plate side surface 321 facing the first fan 1 and a second partition plate side surface 322 facing the second fan 2, wherein the second driving motor is arranged on the first partition plate side surface 321 of the second air duct partition plate 32.

[0107] The second driving motor is arranged on the first partition plate side surface 321 of the second air duct partition plate 32, so that a separate mounting bracket for the second driving motor is not needed, and the second driving motor is fixedly arranged by using the second air duct partition plate 32 which has the function of spacing the air duct, thereby reducing the number of mounting and fixing components inside the shell.

[0108] Optionally, the first partition plate side surface 321 of the second air duct partition plate 32 is provided with a motor mounting groove 3211 matched with the second driving motor. As shown in Figure 11 .

[0109] The first partition plate side surface 321 is provided with the motor mounting groove 3211 for mounting the second driving motor, and the motor mounting groove 3211 is matched with the size of the second driving motor in terms of shape and size. Optionally, the motor mounting groove 3211 extends from the first partition plate side surface 321 to the direction of the first fan 1, so that the motor mounting groove 3211 protrudes from the surface of the first partition plate side surface 321 and has a certain height, as shown in Figure 11 . Alternatively, when the thickness of the second air duct partition plate 32 is large enough, the motor mounting groove 3211 is recessed inward from the first partition plate side surface 321, so that the motor mounting groove 3211 is recessed in the surface of the first partition plate side surface 321 and has a certain depth. In this way, the mounting stability of the motor mounting groove 3211 to the second driving motor is improved.

[0110] Optionally, the second-baffle-side 322 of the second air duct baffle 32 is provided with a fan blade mounting groove 3221 for mounting the second fan blade. As shown in Figure 12 and Figure 13 .

[0111] The second-baffle-side 322 of the second air duct baffle 32 is provided with a fan blade mounting groove 3221 for mounting the second fan blade, and the fan blade mounting groove 3221 is arranged at a position corresponding to the motor mounting groove 3211. Optionally, the shape of the fan blade mounting groove 3221 is matched with the shape of the second fan blade, for example, the shape of the fan blade mounting groove 3221 is circular.

[0112] Optionally, the fan blade mounting groove 3221 extends from the second-baffle-side 322 to the direction of the second fan blade, so that the fan blade mounting groove 3221 protrudes from the surface of the second-baffle-side 322 to have a certain height, as shown in Figure 13 . Alternatively, when the thickness of the second air duct baffle 32 is large enough, the fan blade mounting groove 3221 is recessed inward from the second-baffle-side 322, so that the fan blade mounting groove 3221 is recessed in the surface of the second-baffle-side 322 to have a certain depth. In this way, the mounting stability of the fan blade mounting groove 3221 to the second fan blade is improved.

[0113] Optionally, the air conditioner indoor unit further comprises a heat exchanger 4, the heat exchanger 4 is arranged inside the shell, the first fan 1 and the second fan 2 are arranged at the side of the heat exchanger 4, the heat exchanger 4 comprises an outer heat exchange side 41 facing the air inlet of the shell, and an inner heat exchange side 42 facing the fan, wherein the second air duct baffle 32 comprises a baffle edge 323 facing the inner heat exchange side 42, the inner heat exchange side 42 of the heat exchanger 4 comprises a first heat exchange position 421 corresponding to the baffle edge 323, and the baffle edge 323 is consistent with the line shape of the first heat exchange position 421. As shown in Figure 12 .

[0114] For example, the line shape of the first heat exchange position 421 of the heat exchanger 4 comprises a straight line segment, an arc segment and another straight line segment in sequence, and correspondingly, the line shape of the baffle edge 323 also comprises a straight line segment, an arc segment and another straight line segment in sequence. In this way, the spacing between the first heat exchange position 431 of the heat exchanger 4 and each position of the baffle edge 323 is equal.

[0115] The baffle edge 323 of the second air duct baffle 32 is consistent with the line shape of the first heat exchange position 421 of the heat exchanger 4, as shown in Figure 12 and Figure 14 , so that the effect of the corresponding arrangement of the second air duct baffle 32 and the heat exchanger 4 is improved.

[0116] Optionally, a preset distance is provided between the baffle edge 323 and the first heat exchange position 421; or the baffle edge 323 and the first heat exchange position 421 are in abutment.

[0117] The distance between the baffle edge 323 and the first heat exchange position 421 is less than or equal to 8 mm, or the distance between the baffle edge 323 and the first heat exchange position 421 is less than or equal to 5 mm. When the air conditioner is running in the cooling mode or the dehumidification mode, condensate water is easily generated on the surface of the heat exchanger 4. In the embodiment of the present disclosure, a preset distance is provided between the baffle edge 323 and the first heat exchange position 421, which avoids the condensate water of the heat exchanger 4 from flowing to the second air duct baffle 32.

[0118] Optionally, the baffle edge 323 and the first heat exchange position 421 of the heat exchanger 4 are in abutment. Optionally, a condensate water outlet hole is formed at a position of the second air duct baffle 32 close to the baffle edge 323.

[0119] Optionally, the first air duct baffle 31 includes a third baffle side surface 311 facing the heat exchanger 4, wherein the third baffle side surface 311 is provided with a stop protrusion 3111 in abutment with the top end of the outer heat exchange side surface 41 of the heat exchanger 4.

[0120] The third baffle side surface 311 of the first air duct baffle 31 is provided with a stop protrusion 3111 for fixing the top end of the heat exchanger 4, so that additional heat exchanger 4 mounting brackets are not needed, reducing the number of mounting and fixing components inside the shell. Optionally, the stop protrusion 3111 is in the form of a groove, as shown in Figure 11 Optionally, the stop groove formed by the groove-shaped stop protrusion 3111 has the same shape as the top end of the heat exchanger 4, improving the fixing effect of the top end of the heat exchanger 4.

[0121] Optionally, a wind distribution baffle assembly 226 is provided in the second air duct. As shown in Figures 15 to 18

[0122] The second air duct is provided with a wind distribution baffle assembly 226 for distributing the wind blown by the second air fan 2. The second air duct includes a first side air duct 21 and a second side air duct 22, and the wind distribution baffle assembly 226 can guide the wind blown by the second air fan 2 to the first side air duct 21 and the second side air duct 22 respectively, improving the air output and air uniformity of the first side air outlet 201 and the second side air outlet 202.

[0123] Optionally, the wind distribution baffle assembly 226 can be a fixedly arranged air deflector structure, or a driveable rotating or oscillating air deflector leaf.

[0124] ​Optionally, the second air duct includes a total air outlet duct 23 arranged at the air outlet of the second air fan 2, a first side air duct 21 communicated between the total air outlet duct 23 and the first side air outlet 201, and a second side air duct 22 communicated between the total air outlet duct 23 and the second side air outlet 202, wherein the air distribution baffle assembly 226 includes an air distribution front end 2264 facing the second air fan 2, and at least part of the air distribution front end 2264 of the air distribution baffle assembly 226 is arranged in the total air outlet duct 23 to guide the air of the total air outlet duct 23 to the first side air duct 21 and the second side air duct 22 respectively.

[0125] The second air duct is divided, wherein the air duct near the air outlet of the second air fan 2 is the total air outlet duct 23, the first side air duct 21 is communicated between the total air outlet duct 23 and the first side air outlet 201, and the second side air duct 22 is communicated between the total air outlet duct 23 and the second side air outlet 202. The division between the total air outlet duct 23 and the first side air duct 21 and the second side air duct 22 can be seen as shown by the dashed line in Figure 17 .

[0126] Optionally, at least part of the air distribution front end 2264 of the air distribution baffle assembly 226 is arranged in the total air outlet duct 23, so that the air distribution effect of the air distribution baffle assembly 226 on the air discharged by the second air fan 2 to the first side air duct 21 and the second side air duct 22 is improved. The air distribution front end 2264 is the position of the air distribution baffle assembly 226 upstream of the air of the second air fan 2 in the air discharge direction of the second air fan 2, as shown in Figure 18 . Optionally, at least half of the air distribution front end 2264 is located in the total air outlet duct 23.

[0127] Optionally, the air distribution baffle assembly 226 includes a first air guide plate 2261 and a second air guide plate 2262, wherein the first air guide plate 2261 extends from the total air outlet duct 23 to the first side air duct 21, and the second air guide plate 2262 extends from the total air outlet duct 23 to the second side air duct 22.

[0128] The air distribution baffle assembly 226 includes a first air guide plate 2261 extending to the first side air duct 21, and a second air guide plate 2262 extending to the second side air duct 22. The first air guide plate 2261 extends from the total air outlet duct 23 to the first side air duct 21, which can be understood as the extension direction of the first air guide plate 2261 being from the direction of the total air outlet duct 23 to the direction of the first side air duct 21; similarly, the second air guide plate 2262 extends from the total air outlet duct 23 to the second side air duct 22, which can be understood as the extension direction of the second air guide plate 2262 being from the direction of the total air outlet duct 23 to the direction of the second side air duct 22.

[0129] The arrangement of the first guide plate 2261 and the second guide plate 2262 improves the air guiding effect of the air distribution baffle assembly 226 to the first side air duct 21 and the second side air duct 22 respectively.

[0130] Optionally, the second air duct is arranged vertically, the first guide plate 2261 is arranged vertically in the second air duct, and the second guide plate 2262 is arranged vertically inside the second air duct.

[0131] Optionally, the minimum angle between the first guide vane 2261 and the horizontal direction is β1, where 15° < β1 ≤ 120°; and / or, the minimum angle between the second guide vane 2262 and the horizontal direction is β2, where 15° < β2 ≤ 90°.

[0132] like Figure 19 As shown, the minimum angle β1 between the first guide plate 2261 and the horizontal direction is less than or equal to 90°. It can be understood that when the first guide plate 2261 is arc-shaped, the angle between the first guide plate 2261 and the horizontal direction can be understood as the angle between the external tangent of the end of the first guide plate 2261 closest to the main air outlet duct 23 and the horizontal direction. Optionally, 30°≤β1≤60°. This embodiment of the present disclosure improves the air distribution effect of the first guide plate 2261 towards the first side air duct 21.

[0133] Optionally, the minimum angle β2 between the second guide vane 2262 and the horizontal direction is less than or equal to 90°. It can be understood that the minimum angle between the second guide vane 2262 and the horizontal direction is also the angle between the end of the second guide vane 2262 closest to the main air outlet duct 23 and the horizontal direction. When the second guide vane 2262 is arc-shaped, a tangent is drawn at the end of the second guide vane 2262 closest to the main air outlet duct 23, such as an external tangent, to obtain the angle β2 between the second guide vane 2262 and the horizontal direction. Optionally, 30°≤β2≤60°. This embodiment of the present disclosure improves the air distribution effect of the second guide vane 2262 towards the second side air duct 22.

[0134] Optionally, the inner wall of the second air duct includes a first inner guide wall 2271 that forms an air duct with the first guide plate 2261, and a second inner guide wall 2272 that forms an air duct with the second guide plate 2262. Optionally, the first inner guide wall 2271 has the same curvature as the first guide plate 2261; or, the first inner guide wall 2271 has the same inclination angle as the first guide plate 2261; or, from the main air outlet duct 23 to the first side air duct 21, the width of the air duct formed by the first inner guide wall 2271 and the first guide plate 2261 gradually increases.

[0135] When the first flow guide plate 2261 is arc-shaped, the first flow guide inner wall 2271 of the inner wall of the second air duct is also arc-shaped. Optionally, the first flow guide inner wall 2271 is the same as the arc shape of the first flow guide plate 2261, or the first flow guide inner wall 2271 is the same as the arc of the first flow guide plate 2261. Optionally, when the first flow guide plate 2261 is straight, the first flow guide inner wall 2271 of the inner wall of the second air duct is also straight. Optionally, the first flow guide inner wall 2271 is the same as the inclination angle of the first flow guide plate 2261.

[0136] Optionally, from the total air outlet duct 23 to the first side air duct 21, the width of the flow guide channel formed by the first flow guide inner wall 2271 and the first flow guide plate 2261 gradually increases. Figure 16 As shown in the figure, the width of the first flow guide inner wall 2271 and the first flow guide plate 2261 at one end close to the total air outlet duct 23 is D1, and the width of the first flow guide inner wall 2271 and the first flow guide plate 2261 at one end close to the first side air duct 21 is D2, wherein D1 is less than D2, and gradually increases from D1 to D2.

[0137] It can be understood that the first flow guide inner wall 2271 is Figure 16 The thickening section of the flow guide channel formed by the inner wall of the second air duct and the first flow guide plate 2261 in the figure is shown.

[0138] Optionally, the second flow guide inner wall 2272 is the same as the arc of the second flow guide plate 2262, or the second flow guide inner wall 2272 is the same as the inclination angle of the second flow guide plate 2262, or from the total air outlet duct 23 to the second side air duct 22, the width of the flow guide channel formed by the second flow guide inner wall 2272 and the second flow guide plate 2262 gradually increases.

[0139] When the second flow guide plate 2262 is arc-shaped, the second flow guide inner wall 2272 of the inner wall of the second air duct is also arc-shaped. Optionally, the second flow guide inner wall 2272 is the same as the arc shape of the second flow guide plate 2262, or the second flow guide inner wall 2272 is the same as the arc of the second flow guide plate 2262. Optionally, when the second flow guide plate 2262 is straight, the second flow guide inner wall 2272 of the inner wall of the second air duct is also straight. Optionally, the second flow guide inner wall 2272 is the same as the inclination angle of the second flow guide plate 2262.

[0140] Optionally, from the total air outlet duct 23 to the second side air duct 22, the width of the flow guide channel formed by the second flow guide inner wall 2272 and the second flow guide plate 2262 gradually increases. Figure 16As shown, the width of the second flow guide inner wall 2272 and the second flow guide plate 2262 near one end of the total air outlet duct 23 is D3, and the width of the second flow guide inner wall 2272 and the second flow guide plate 2262 near one end of the second side air duct 22 is D4, wherein D3 is less than D4, and gradually increases from D3 to D4.

[0141] It can be understood that the second flow guide inner wall 2272 is Figure 16 As shown, the inner wall of the second air duct and the second flow guide plate 2262 form a thickened section of the flow guide air duct.

[0142] Optionally, a side air duct connecting position 229 is arranged between the first side air duct 21 and the second side air duct 22; the air distribution baffle assembly 226 further comprises a third flow guide plate 2263, and the third flow guide plate 2263 is arranged between the first flow guide plate 2261 and the second flow guide plate 2262, wherein the third flow guide plate 2263 extends from the total air outlet duct 23 to the side air duct connecting position 229.

[0143] The air distribution baffle assembly 226 further comprises a third flow guide plate 2263 arranged between the first flow guide plate 2261 and the second flow guide plate 2262, and the third flow guide plate 2263 extends from the total air outlet duct 23 to the side air duct connecting position 229. In this way, the third flow guide plate 2263 and the first flow guide plate 2261 form two flow guide air ducts for distributing air to the first side air duct 21, and similarly, the third flow guide plate 2263 and the second flow guide plate 2262 form two flow guide air ducts for distributing air to the second side air duct 22. It can be seen that the arrangement of the third flow guide plate 2263 improves the air distribution effect of the air blown by the second air blower 2 to the first side air duct 21 and the second side air duct 22, respectively.

[0144] Optionally, the third flow guide plate 2263 is also arranged vertically; optionally, the third flow guide plate 2263 is arc-shaped.

[0145] Optionally, the air distribution baffle assembly 226 further comprises a guide plate connecting plate 228 arranged transversely to the first flow guide plate 2261 and the second flow guide plate 2262.

[0146] The second air duct has a certain height in the vertical direction, and similarly, the heights of the first flow guide plate 2261, the second flow guide plate 2262, and the third flow guide plate 2263 are substantially the same as the height of the second air duct. It can be seen that the first flow guide plate 2261, the second flow guide plate 2262, and the third flow guide plate 2263 also have a certain height. The arrangement of the guide plate connecting plate 228 improves the stability of the air distribution and flow guide of the vertically arranged first flow guide plate 2261, the second flow guide plate 2262, and the third flow guide plate 2263.

[0147] Optionally, the guide plate connecting plate 228 is arranged in a horizontal direction. Optionally, the guide plate connecting plate 228 is integrally formed with the first guide plate 2261, the second guide plate 2262 and the third guide plate 2263. Optionally, the guide plate connecting plate 228 is arranged in a plug-in manner with the first guide plate 2261, the second guide plate 2262 and the third guide plate 2263.

[0148] Optionally, the number of the guide plate connecting plate 228 is multiple, and the multiple guide plate connecting plates 228 are arranged in a spaced manner along the length direction of the first guide plate 2261 and the second guide plate 2262.

[0149] The air distribution baffle assembly 226 includes multiple guide plate connecting plates 228 arranged in a spaced manner, and the multiple guide plate connecting plates 228 are arranged in a spaced manner along the length or height direction of the first guide plate 2261 and the second guide plate 2262. It can be understood that the length or height direction of the first guide plate 2261, the second guide plate 2262 and the third guide plate 2263 is a vertical direction. Optionally, the spacing between each adjacent two guide plate connecting plates 228 is equal. As Figure 13 shown.

[0150] Optionally, the guide plate connecting plate 228 includes opposite first guide plate end 2281 and second guide plate end 2282, wherein the first guide plate end 2281 is connected to the inner wall of the second air duct; and / or the second guide plate end 2282 is connected to the inner wall of the second air duct.

[0151] The first guide plate end 2281 of the guide plate connecting plate 228 is connected to the inner wall of the second air duct, and similarly, the second guide plate end 2282 is also connected to the inner wall of the second air duct, so that the setting stability of the guide plate connecting plate 228 in the second air duct is improved.

[0152] Optionally, the air conditioner indoor unit further includes a heat exchanger 4 arranged in the shell, and the heat exchanger 4 includes a first heat exchange part 431 arranged on the air inlet side of the first fan 1 and a second heat exchange part 432 arranged on the air inlet side of the second fan 2. The heat exchange area of the first heat exchange part 431 is smaller than the heat exchange area of the second heat exchange part 432. As Figures 20 to 24 shown.

[0153] The heat exchanger 4 includes a first heat exchange part 431 arranged on the air inlet side of the first fan 1 and a second heat exchange part 432 arranged on the air inlet side of the second fan 2. The heat exchanger 4 can be divided in a vertical direction to obtain the second heat exchange part 432 and the first heat exchange part 431 distributed in an up-down manner. When the first fan 1 is arranged at the lower part of the second fan 2, the first heat exchange part 431 is correspondingly arranged at the lower part of the second heat exchange part 432. The division line between the first heat exchange part 431 and the second heat exchange part 432 is shown by the dashed line in Figure 21 .

[0154] Optionally, the refrigerant pipeline of the first heat exchange portion 431 and the second heat exchange portion 432 is arranged in series or in parallel. When the refrigerant pipeline of the first heat exchange portion 431 and the second heat exchange portion 432 is arranged in parallel, the refrigerant distribution ratio between the first heat exchange portion 431 and the second heat exchange portion 432 can be adjusted according to the user's demand for the air outlet temperature between the upper air outlet 101 and the side air outlet; or when the upper air outlet 101 is required to send air, the refrigerant can only flow through the first heat exchange portion 431, and when the side air outlet is required to send air, the refrigerant can only flow through the second heat exchange portion 432.

[0155] Optionally, the fins of the heat exchanger of the first heat exchange portion 431 and the fins of the heat exchanger of the second heat exchange portion 432 are integrally formed.

[0156] In the embodiment of the present disclosure, the heat exchange area of the first heat exchange portion 431 is smaller than the heat exchange area of the second heat exchange portion 432. When the first fan 1 is a centrifugal fan and the second fan 2 is a cross-flow fan, the heat exchange area of the first heat exchange portion 431 corresponding to the centrifugal fan is smaller, and the heat exchange area of the second heat exchange portion 432 corresponding to the cross-flow fan is larger, thereby improving the overall air supply of the air conditioner indoor unit.

[0157] Optionally, the ratio of the heat exchange area of the first heat exchange portion 431 to the heat exchange area of the second heat exchange portion 432 is greater than or equal to 1 / 2.

[0158] In this way, the air supply effect of the first fan 1 is improved without reducing the overall air supply of the air conditioner indoor unit. Optionally, the ratio of the heat exchange area of the first heat exchange portion 431 to the heat exchange area of the second heat exchange portion 432 is less than or equal to 2 / 3.

[0159] Optionally, the heat exchanger 4 includes a first heat exchange section 433 and a second heat exchange section 434, and the first heat exchange section 433 includes a heat exchange portion arranged on the air inlet side of the first fan 1 and the air inlet side of the second fan 2, and the second heat exchange section 434 includes a heat exchange portion arranged on the air inlet side of the first fan 1 and the air inlet side of the second fan 2. The first heat exchange section 433 and the second heat exchange section 434 are arranged in an arc shape or a bent shape.

[0160] The heat exchanger 4 is divided in the horizontal direction to obtain the first heat exchange section 433 and the second heat exchange section 434 arranged horizontally. The first heat exchange portion 431 corresponding to the air inlet side of the first fan 1 includes the first heat exchange section 433 and the second heat exchange section 434, and the second heat exchange portion 432 corresponding to the air inlet side of the second fan 2 also includes the first heat exchange section 433 and the second heat exchange section 434.

[0161] Optionally, the first heat exchange section 433 is a straight section, the second heat exchange section 434 is a straight section, and an arc-shaped or bent first heat exchange connecting position 435 is arranged between the first heat exchange section 433 and the second heat exchange section 434, as shown in Figure 22 and Figure 23 .

[0162] Optionally, the second fan 2 is provided with a first air duct 11 partition and a second air duct partition 32, and the first air duct 11 partition is arranged on the upper portion of the second air duct partition 32. The first air duct 11 partition is provided with a first air duct opening 301 which is in communication with the first air duct 11, and the second air duct partition 32 is provided with a second air duct opening 302 which is in communication with the first air duct 11.

[0163] Optionally, the shell includes a first side shell portion 51 close to the first air duct 11, and the second air duct opening 302 is arranged from a first starting position 3023 of the second air duct partition 32 to the first side shell portion 51, and a vertical extension line where the first starting position 3023 is located is a first extension line, wherein the first extension line passes through the first heat exchange connecting position 435; or the first heat exchange connecting position 435 and the second air duct opening 302 are located on the same side of the first extension line.

[0164] The first extension line is shown by a vertical dashed line in Figure 22 , Figure 22 wherein the first extension line passes through the first heat exchange connecting position 435. In the embodiment of the present disclosure, the first extension line passes through the first heat exchange connecting position 435, or the first heat exchange connecting position 435 and the second air duct opening 302 are located on the same side of the first extension line, for example, as shown in Figure 22 , the first heat exchange connecting position 435 and the second air duct opening 302 can be located on the left side of the first extension line. In this way, the air supply of the first fan 1 is improved.

[0165] Optionally, a side air duct connecting position 229 is arranged between the first side air duct 21 and the second side air duct 22, a first straight line is obtained by connecting the center of the second fan 2 and the first heat exchange connecting position 435, and a second straight line is obtained by connecting the center of the second fan 2 and the side air duct connecting position 229, wherein the included angle r between the first straight line and the second straight line is greater than or equal to a second preset angle, as shown in Figure 22

[0166] Optionally, a first straight line can be obtained by connecting the center of the first heat exchange connecting position 435 and the center of the second fan 2; or a first straight line can be obtained by connecting the position of the first heat exchange connecting position 435 closest to the shell and the center of the second fan 2.

[0167] ​In the embodiments of the present disclosure, the angle between the first straight line and the second straight line is r, and 90°≤r≤270°, so that the heat exchange effect of the second fan 2 and the heat exchanger 4 is improved. Alternatively, 130°≤r≤140°.

[0168] Alternatively, the heat exchanger 4 includes a first heat exchange section 433, a second heat exchange section 434, and a first heat exchange connection position 435 arranged between the first heat exchange section 433 and the second heat exchange section 434 along the width direction, and the sum of the widths of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 is less than or equal to the first preset width.

[0169] The middle part of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be selected as the width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435, respectively. The total width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be Figure 23 The middle part of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be selected as the width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435, respectively. The total width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be

[0170] Alternatively, the width of the first heat exchange section 433 is less than or equal to 1 / 2 of the total width of the heat exchanger 4, and the width of the first heat exchange connection position 435 is less than or equal to 1 / 2 of the total width of the heat exchanger 4.

[0171] Alternatively, the second heat exchange section 434 of the heat exchanger 4 is a heat exchange section close to the second fan 2, wherein the width of the first heat exchange section 433 is less than the width of the second heat exchange section 434, or the width of the first heat exchange connection position 435 is less than the width of the second heat exchange section 434, so that the heat exchange effect of the second fan 2 and the heat exchanger 4 is improved.

[0172] Alternatively, the first heat exchange connection position 435 is an arc-shaped heat exchange section, and the bending radius of the arc-shaped heat exchange section is R, wherein 50mm≤R≤180mm.

[0173] The innermost arc-shaped section of the arc-shaped heat exchange section is taken as the bending radius R, as shown in the bolded part in the middle. Figure 24 The middle part of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be selected as the width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435, respectively. The total width of the first heat exchange section 433, the second heat exchange section 434, and the first heat exchange connection position 435 can be

[0174] Alternatively, the first heat exchange connection position 435 includes an inner arc-shaped section and an outer arc-shaped section, wherein the arc length of the inner arc-shaped section is greater than or equal to 5mm.

[0175] Optionally, the inner arc segment of the first heat exchange connection position 435 is Figure 24 The arc length of the inner arc segment is greater than or equal to 5 mm, and optionally, the arc length of the inner arc segment can be 5 mm, 8 mm, 15 mm, 20 mm, 30 mm, etc.

[0176] The embodiments of the present disclosure also provide an air conditioner comprising the indoor unit of the air conditioner.

[0177] The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. The embodiments are merely representative of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A double-fan cabinet-type air conditioner indoor unit, characterized by comprising: The double-fan cabinet air conditioner indoor unit comprises a shell, a first air duct and a second air duct are arranged in the shell, an upper air outlet is arranged on the upper portion of the shell and is connected with the first air duct, a side air outlet is arranged on the side portion of the shell and is connected with the second air duct, a fan assembly is arranged in the shell, the fan assembly comprises a first fan and a second fan, the first fan is connected with the upper air outlet through the first air duct to supply air to the upper portion, the second fan is connected with the side air outlet through the second air duct to supply air to the side portion, and a heat exchanger is arranged in the shell and comprises a first heat exchange portion arranged on the air inlet side of the first fan and a second heat exchange portion arranged on the air inlet side of the second fan.

2. The double-fan cabinet air conditioner indoor unit according to claim 1, wherein the first preset width is less than or equal to 500 mm.

3. The double-fan cabinet air conditioner indoor unit according to claim 1, wherein the first heat exchange connecting position is an arc-shaped heat exchange section, and the bending radius of the arc-shaped heat exchange section is R, wherein 50 mm≤R≤180 mm.

4. The double-fan cabinet air conditioner indoor unit according to claim 3, wherein 60 mm≤R≤75 mm.

5. The double-fan cabinet air conditioner indoor unit according to claim 3, wherein the first heat exchange connecting position comprises an inner arc-shaped section and an outer arc-shaped section, and the arc length of the inner arc-shaped section is greater than or equal to 5 mm.

6. The double-fan cabinet air conditioner indoor unit according to claim 1, wherein the first fan is arranged on the lower portion of the second fan, and the first air duct is arranged on one side of the second air duct.

7. The double-fan cabinet air conditioner indoor unit according to claim 6, wherein the side air outlet comprises a first side air outlet and a second side air outlet, the second air duct comprises a first side portion air duct connected with the first side air outlet and a second side portion air duct connected with the second side air outlet, and the first air duct is arranged on one side of the second side portion air duct.

8. The double-fan cabinet air conditioner indoor unit according to claim 7, wherein the second fan is provided with a first air duct partition plate and a second air duct partition plate at both ends thereof, the first air duct partition plate is arranged on the upper portion of the second air duct partition plate, the first air duct partition plate is provided with a first air duct opening connected with the first air duct, and the second air duct partition plate is provided with a second air duct opening connected with the first air duct.

9. The double-fan cabinet air conditioner indoor unit according to any one of claims 1 to 8, wherein the first fan comprises a centrifugal fan, the second fan comprises a cross-flow fan, and the first fan is arranged on the lower portion of the second fan.

10. A double-fan cabinet air conditioner indoor unit comprising the double-fan cabinet air conditioner indoor unit according to any one of claims 1 to 9. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 10. An air conditioner characterized by comprising: ​

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