Double-fan floor 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 floor type air conditioner indoor unit which comprises a shell, a first air duct and a second air duct are arranged in the shell, an upper air outlet communicating with the first air duct is formed in the upper portion of the shell, and a side air outlet communicating with the second air duct is formed in the side portion of the shell; the fan assembly comprises a first fan and a second fan, the first fan is communicated with the upper air outlet through a first air duct so as to discharge air from the upper portion, the second fan is communicated with the side air outlet through a second air duct so as to supply air to the side portion, the first fan comprises a centrifugal fan, the centrifugal fan further comprises a centrifugal volute and centrifugal fan blades, and the centrifugal volute is communicated with the centrifugal fan. A vertically-arranged fixed supporting plate is further arranged in the shell, and a centrifugal volute of the centrifugal fan is fixed to the fixed supporting plate. According to the air conditioner indoor unit, the two draught fans are arranged, the air outlet effect of the air conditioner indoor unit is improved, and the fixing stability of the centrifugal draught fan is improved. The utility model further discloses the air conditioner.

Description

TECHNICAL FIELD

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

[0002] The air conditioner is a common electrical appliance for improving the indoor environment of the user, and the size of the temperature regulation capacity, the air supply mode, etc. are related to the experience of the user in the process of using 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. Whether the air conditioner runs 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. INVENTION CONTENTS

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

[0008] The embodiments of the present disclosure provide a double-fan floor 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 floor type air conditioner indoor unit comprises: a shell, an internal first air duct and a second air duct are arranged in the shell, and an upper air outlet connected with the first air duct is arranged on the upper part of the shell, and a side air outlet connected with the second air duct is arranged on the side part of the shell; a fan assembly comprising a first fan and a second fan, and the first fan is connected with the upper air outlet through the first air duct for upper air outlet, and the second fan is connected with the side air outlet through the second air duct for side air supply, wherein the first fan comprises a centrifugal fan, the centrifugal fan further comprises a centrifugal volute, a centrifugal fan blade and a first driving motor for driving the centrifugal fan blade to rotate, and a vertical fixed support plate is further arranged in the shell, and the centrifugal volute of the centrifugal fan is fixed to the fixed support plate.

[0010] In some embodiments, the centrifugal fan comprises a first centrifugal end and a second centrifugal end opposite to the first centrifugal end, wherein the fixed support plate is arranged at the second centrifugal end of the centrifugal fan.

[0011] In some embodiments, the housing further comprises a support base arranged at the bottom of the centrifugal fan, wherein the support base is provided with a support slot, and the bottom of the centrifugal volute of the centrifugal fan is provided with a plug-in column inserted into the support slot.

[0012] In some embodiments, the fixed support plate comprises a vertical fixed support plate body and a support plate folded edge bent connected with the fixed support plate body, the support plate folded edge comprises a bottom folded edge arranged at the bottom and a top folded edge arranged at the top, wherein the support base is provided with a first clamping column, the bottom folded edge is provided with a first through slot for being inserted with the first clamping column, the bottom of the second air duct is provided with a second clamping column, and the top folded edge is provided with a second through slot for being inserted with the second clamping column.

[0013] In some embodiments, the support base is provided with an arc-shaped limiting slot, the lower part of the centrifugal volute of the centrifugal fan is fixedly arranged in the arc-shaped limiting slot, the support slot comprises a first support slot and a second support slot, the plug-in column of the bottom of the centrifugal volute comprises a first plug-in column inserted into the first support slot and a second plug-in column inserted into the second support slot, wherein the arc-shaped limiting slot comprises a first half-arc support seat and a second half-arc support seat, the first support slot is arranged at the first half-arc support seat, and the second support slot is arranged at the second half-arc support seat.

[0014] In some embodiments, the support base is further provided with a heat exchanger support seat, wherein a balance support plate is arranged between the heat exchanger support seat and the first centrifugal end of the centrifugal fan.

[0015] In some embodiments, the balance support plate has the same height as the fixed support plate.

[0016] In some embodiments, the bottom end of the air inlet port of the centrifugal fan has a first height, the top end of the heat exchanger support seat has a second height, and the bottom end of the arc-shaped limiting slot has a third height, wherein the second height is less than the first height; and / or, the third height is less than the second height.

[0017] In some 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 air duct communicating with the first side air outlet, and a second side air duct communicating with the second side air outlet, wherein the first air duct is arranged at one side of the second side air duct.

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

[0019] The double-fan floor 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 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 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 outlet. The first fan comprises a centrifugal fan, and the centrifugal fan further comprises a centrifugal volute, a centrifugal fan blade and a first driving motor for driving the centrifugal fan blade to rotate. The shell is further provided with a vertically arranged fixed support plate, and the centrifugal volute of the centrifugal fan is fixed on the fixed support plate.

[0021] It can be seen that the shell of the double-fan floor 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 through different fans respectively. The forward air supply of the top and the forward air supply of the side are simultaneously realized, the diversification of the air supply mode of the air conditioner indoor unit is improved, and the user experience is improved.

[0022] In addition, the shell of the air conditioner indoor unit is further provided with a vertically arranged fixed support plate, the first fan is a centrifugal fan, and the centrifugal fan is vertically fixed on the fixed support plate, thereby improving the setting stability of the centrifugal fan of the air conditioner indoor unit.

[0023] 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

[0024] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, and elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0025] Figure 1 is a structural schematic diagram of an air conditioner indoor unit provided by the embodiments of the present disclosure;

[0026] Figure 2 is a structural schematic diagram of another air conditioner indoor unit provided by the embodiments of the present disclosure;

[0027] Figure 3 is a structural schematic diagram of another air conditioner indoor unit provided by the embodiments of the present disclosure;

[0028] Figure 4 is a structural schematic diagram of another air conditioner indoor unit provided by the embodiments of the present disclosure;

[0029] Figure 5 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0030] Figure 6 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0031] Figure 7 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0032] Figure 8 is Figure 7 is an enlarged view of a selected portion of FIG. 7;

[0033] Figure 9 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0034] Figure 10 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0035] Figure 11 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0036] Figure 12 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0037] Figure 13 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0038] Figure 14 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0039] Figure 15 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0040] Figure 16 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0041] Figure 17 is another structural schematic view of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0042] Figure 18 is Figure 17 is an enlarged view of a selected portion of FIG. 10;

[0043] Figure 19 is Figure 17 is another enlarged view of a selected portion of FIG. 11;

[0044] Figure 20is another structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0045] Figure 21 is another structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0046] Figure 22 is another structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0047] Figure 23 is a structural schematic diagram of a heat exchanger provided by an embodiment of the present disclosure;

[0048] Figure 24 is another structural schematic diagram of a heat exchanger provided by an embodiment of the present disclosure;

[0049] Figure 25 is a mounting schematic diagram of a centrifugal fan provided by an embodiment of the present disclosure;

[0050] Figure 26 is another mounting schematic diagram of a centrifugal fan provided by an embodiment of the present disclosure;

[0051] Figure 27 is a structural schematic diagram of a support base provided by an embodiment of the present disclosure;

[0052] Figure 28 is a structural schematic diagram of a centrifugal fan provided by an embodiment of the present disclosure;

[0053] Figure 29 is another structural schematic diagram of an air conditioner indoor unit provided by an embodiment of the present disclosure;

[0054] Figure 30 is another mounting schematic diagram of a centrifugal fan provided by an embodiment of the present disclosure;

[0055] Figure 31 is another mounting schematic diagram of a centrifugal fan provided by an embodiment of the present disclosure.

[0056] Reference signs:

[0057] 1: first fan; 11: first air duct; 101: upper air outlet; 12: centrifugal fan blade; 13: fixed support plate; 14: support base; 1011: first centrifugal end; 131: fixed support plate body; 1331: second through groove; 132: bottom folding edge; 133: top folding edge; 141: first support slot; 142: second support slot; 143: arc-shaped limiting slot; 1431: first half-arc support seat; 1432: second half-arc support seat; 144: first clamping column; 145: heat exchanger support seat; 151: first plug-in column; 152: second plug-in column; 16: balance support plate; 17: centrifugal volute; 171: air inlet port;

[0058] 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 second side air duct; 222: outer wall of 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 baffle assembly; 2261: first guide plate; 2262: second guide plate; 2263: third guide plate; 2264: air distribution front end; 2271: first guide plate inner wall; 2272: second guide plate inner wall; 228: guide plate connecting plate; 2281: first guide plate end; 2282: second guide plate end; 229: side air duct connecting position; 24: second clamping column;

[0059] 31: first air duct baffle; 301: first air duct opening; 302: second air duct opening; 3021: first edge; 3022: second edge; 3023: first starting position; 311: third baffle side face; 3111: stop protrusion; 32: second air duct baffle; 321: first baffle side face; 3211: motor mounting groove; 322: second baffle side face; 3221: impeller mounting groove; 323: baffle edge;

[0060] 4: heat exchanger; 41: outer heat exchange side face; 42: inner heat exchange side face; 421: first heat exchange position; 431: first heat exchange portion; 432: second heat exchange portion; 433: first heat exchange segment; 434: second heat exchange segment; 435: first heat exchange connecting position; 436: middle heat exchange segment;

[0061] 51: first side shell part; 52: second side shell part. DETAILED DESCRIPTION

[0062] In order to enable a person skilled in the art to more fully understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below with reference to the accompanying drawings, which are used only for reference and are not intended to 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, in order to simplify the drawings, well-known structures and devices can be simplified.

[0063] The terms "first", "second", etc. 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 be used 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.

[0064] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", etc. 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 to have a specific orientation, or to 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 dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0065] In addition, the terms "set", "connected", "fixed" should be broadly understood. For example, "connected" can be fixed connection, detachable connection, or integral structure; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0066] Unless otherwise specified, the term "a plurality of" means two or more.

[0067] In the embodiments of the present disclosure, the character " / " represents a "or" relationship between the preceding and following objects. For example, A / B represents: A or B.

[0068] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, the three relationships.

[0069] 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.

[0070] The embodiments of the present disclosure provide an air conditioner indoor unit, which can also be referred to as a vertical air conditioner indoor unit, a floor type air conditioner indoor unit, a cabinet type air conditioner indoor unit, a double-fan air conditioner indoor unit, a double-fan cabinet type air conditioner indoor unit, a double-fan floor type air conditioner indoor unit, etc.

[0071] 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 outlet.

[0072] 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.

[0073] 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 at the top or upper part and the side air outlet at the side part. Optionally, the upper air outlet 101 can realize top-to-front air outlet, and the side air outlet is arranged at the middle part or lower-middle part of the shell, which can realize middle-to-front or side air outlet 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 the air outlet mode of multi-dimensional air outlet, and improves the user experience.

[0074] The shell of the air conditioner indoor unit provided by the embodiments of the present disclosure is internally provided with the first air duct 11 and the second air duct, the first air duct 11 is in communication with the upper air outlet 101, and the first 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 fan 2 is arranged in the second air duct. In this way, the air outlet of the two air outlets is not affected by each other by arranging the different fans in the different air ducts and sending air to the upper air outlet 101 and the side air outlet.

[0075] Optionally, the first air duct 11 and the second air duct are arranged in isolation. The air blown by the first fan 1 is only sent out through the upper air outlet 101, and the air blown by the second fan 2 is only sent out through the side air outlet. In this way, the air outlet amount of the upper air outlet 101 and the side air outlet can be respectively controlled by respectively adjusting the gear or the rotating speed of the first fan 1 and the second fan 2, thereby improving the diversification of the air outlet of the air conditioner indoor unit.

[0076] In the embodiments of the present disclosure, the first air duct 11 is arranged at 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. Among the two vertically arranged air ducts, the first air duct 11 is arranged at one side of the second air duct. Optionally, the first air duct 11 is arranged at one side of the outer wall of the second air duct.

[0077] Optionally, the side air outlet comprises a first side air outlet 201 and a second side air outlet 202, the second air duct comprises a first side air duct 21 communicated with the first side air outlet 201, and a second side air duct 22 communicated with the second side air outlet 202, wherein the first air duct 11 is arranged at one side of the second side air duct 22. As shown in Figure 2 and Figure 3 .

[0078] The first side air outlet 201 is a vertical strip-shaped air outlet, similarly, the second side air outlet 202 is a vertical 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 fan 2.

[0079] 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 , and 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 3 . Optionally, the first side air duct 21 and / or the second side air duct 22 is an arc-shaped air duct.

[0080] Optionally, the second fan 2 is arranged closer to the 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 a larger reserved position. In this way, the opening area of the first air duct 11 is increased, and the air volume of the upper air outlet 101 is increased.

[0081] Optionally, the second fan 2 is provided with a first air duct partition 31 and a second air duct partition 32 at both ends, the first air duct partition 31 is arranged at the upper part of the second air duct partition 32, wherein the first air duct partition 31 is provided with a first air duct opening 301 communicated with the first air duct 11, and the second air duct partition 32 is provided with a second air duct opening 302 communicated with the first air duct 11. As shown in Figure 4 .

[0082] 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 communicating with the first air duct 11, and the second air duct partition 32 is provided with a second air duct opening 302 communicating 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.

[0083] Optionally, the first air duct partition 31 and / or the second air duct partition 32 are arranged in the housing in the horizontal direction, as shown in Figure 4 Optionally, the first air duct opening 301 is arranged at a position where the first air duct 11 of the first air duct partition 31 extends upward in the vertical direction, and the 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 a position where the first air duct 11 of the second air duct partition 32 extends downward in the vertical direction, and the 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, thereby reducing the air resistance of the first air duct opening 301 and the second air duct opening 302.

[0084] Optionally, 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, wherein the first projection overlaps the second projection; or the first projection covers the second projection.

[0085] The first air duct opening 301 is arranged on the upper first air duct partition 31, and the second air duct opening 302 is arranged on the lower second air duct partition 32. The first air duct opening 301 has a first projection in the vertical or vertical direction, and the second air duct opening 302 has a second projection in the vertical or 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 area of the first air duct opening 301 is greater than the area of 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.

[0086] Optionally, the outer wall 221 of the second side air duct forms a first outer wall with the outer wall 222 of the casing of the second fan 2 near the second side air duct 22, and the first outer wall comprises a first position 223 with a distance less than a preset distance, and the housing comprises a first side housing part 51 near the first air duct 11, wherein the second air duct opening 302 is formed from the first position 223 to the first side housing part 51. As Figure 7 shown.

[0087] 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.

[0088] The outer wall 221 of the second side air duct is shown as Figure 5 a thickened line, and the outer wall 222 of the casing of the second fan 2 near the second side air duct 22 is shown as Figure 6 a thickened line. The outer wall 221 of the second side air duct forms a first outer wall with the outer wall 222 of the casing of the second fan 2 near the second side air duct 22, and the first outer wall comprises a first position 223 with a distance less than a preset distance, as Figure 7 shown, and 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 part 51 of the housing. In this way, the second air duct opening 302 is roughly flared, reducing the air resistance of the second air duct opening 302.

[0089] 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 is roughly flared. As Figure 7 shown.

[0090] Optionally, the first position 223 of the first outer wall comprises a first separation point 2231 near the second side air duct 22, and a second separation 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 separation point 2231 to the first side housing part 51, and a second side air duct plate 225 extending from the second separation point 2232 to the first side housing part 51. As Figure 7 and Figure 8 shown.

[0091] Optionally, the second separation point 2232 is the bending position of the outer wall 222 of the casing. The first outer wall comprises a first side air duct plate 224 extending from the first separation point 2231 to the first side housing part 51, as Figure 7 shown as a thickened line; and the first outer wall further comprises a second side air duct plate 225 extending from the second separation point 2232 to the second side housing part 52, asFigure 7 The line in the bolded part.

[0092] Optionally, the second side air duct plate 225 obtains a first tangent line at the second separation point 2232, wherein the first tangent line forms an angle a with the first side air duct plate 224, and 30°≤a≤150°.

[0093] As shown in the figure, the second side air duct plate 225 obtains a first tangent line at the second separation 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 towards the first side shell part 51 from the first position 223, and the flaring is as large as possible. Optionally, 30°≤a≤50°. Figure 8 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 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 the figure.

[0094] Figure 9 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 second air duct partition plate 32 is cut along the first side air duct plate 224 to obtain the first edge 3021 of the second air duct opening 302. 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 the figure.

[0095] 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 second air duct partition plate 32 is cut along the first side air duct plate 224 to obtain the first edge 3021 of the second air duct opening 302. 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 the figure. Figure 7 Figure 9 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 part of the second edge 3022 of the second air duct opening 302 overlaps the line type of the first side plate segment 2251.

[0096] 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 air blown out of the second air duct opening 302 does not form air resistance and noise when passing through the outer wall of the second side air duct 22, thereby improving the air output of the upper air outlet 101.

[0097] Optionally, the outer wall 221 of the second side air duct is the same as the cross section obtained by the first outer wall at different positions in the vertical direction of the outer wall 222 of the shell close to the second air duct 2 of the second air duct 2.

[0098] Optionally, the outer wall 221 of the second side air duct is the same as the cross section obtained by the first outer wall at different positions in the vertical direction of the outer wall 222 of the shell close to the second air duct 2 of the second air duct 2.

[0099] ​​Optionally, the linear shape and other parameters of the first air duct opening 301 on the first air duct partition 31 are the same as those of the second air duct opening 302.

[0100] Optionally, the first fan 1 includes a centrifugal fan, and the second fan 2 includes a cross-flow fan.

[0101] Optionally, the axis of the cross-flow fan is set vertically, while the axis of the centrifugal fan is set horizontally. For example... Figure 1 and Figure 2 As shown.

[0102] Optionally, the cross-section of the first air duct 11 includes the longest first length L1, and the cross-section of the second side air duct 22 includes the shortest second length L2, and the ratio of L1 to L2 is greater than or equal to a first preset value.

[0103] like Figure 10 As shown, the cross-section of the first air duct 11 includes the longest first length L1, and the cross-section of the second side air duct 22 includes the shortest second length L2, wherein the ratio of L1 to L2 is greater than or equal to a first preset value. This increases the area of ​​the first air duct 11, thereby increasing the airflow of the first air duct 11 and the airflow of the upper air outlet 101. Optionally, the first preset value is greater than or equal to 0.5.

[0104] Optionally, the first preset value is greater than or equal to 2.

[0105] In this embodiment, 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. This increases the area and air volume of the first air duct 11.

[0106] 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.

[0107] 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.

[0108] Optionally, the shell comprises a first side shell part 51 close to the first air duct 11, and a second side shell part 52 opposite to the first side shell part 51, and a distance between the first side shell part 51 and the second side shell part 52 is L4, wherein a ratio of L1 to L4 is greater than or equal to a third preset value.

[0109] In the embodiments of the present disclosure, the ratio of the first length L1 of the first air duct 11 to the distance L4 between the two side shell parts of the shell is greater than or equal to the third preset value, so that the air volume of the first air duct 11 is improved. 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.

[0110] Optionally, the first fan 1 comprises a centrifugal fan, and a diameter of the centrifugal fan ranges from 90mm to 150mm; optionally, the diameter of the centrifugal fan is 125mm. Optionally, the second fan 2 comprises a cross-flow fan, and a diameter of the cross-flow fan ranges from 200mm to 450mm; optionally, the diameter of the cross-flow fan is 300mm. In this way, the overall air volume of the multiple air outlets of the air conditioner indoor unit is improved.

[0111] Optionally, the second fan 2 is provided with the first air duct partition plate 31 and the second air duct partition plate 32 at two ends thereof, and the second air duct partition plate 32 is arranged between the first fan 1 and the second fan 2.

[0112] 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 embodiments 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 volume of the first air duct assembly and the second air duct assembly is improved.

[0113] Optionally, the first air duct partition plate 31 is provided with a first air duct opening 301 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 in communication with the first air duct 11.

[0114] 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.

[0115] 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 required, and the second driving motor is fixedly arranged by using the second air duct partition plate 32 having the air duct spacing function, thereby reducing the number of mounting and fixing components inside the shell.

[0116] 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. Figure 11 As shown.

[0117] 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 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 to have a certain height, as shown. Figure 11 As shown; or 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 to have a certain depth. In this way, the mounting stability of the motor mounting groove 3211 to the second driving motor is improved.

[0118] Optionally, the second partition plate side surface 322 of the second air duct partition plate 32 is provided with a fan blade mounting groove 3221 for mounting the second fan blade. As shown. Figure 12 and Figure 13 As shown.

[0119] The second partition plate side surface 322 of the second air duct partition plate 32 is provided with the 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 fan blade mounting groove 3221 is matched with the shape of the second fan blade in shape, for example, the shape of the fan blade mounting groove 3221 is circular.

[0120] Optionally, the fan blade mounting groove 3221 extends from the second partition plate side surface 322 to the direction of the second fan blade, so that the fan blade mounting groove 3221 protrudes from the surface of the second partition plate side surface 322 to have a certain height, as shown. Figure 13As shown in the drawings; or, when the thickness of the second air duct partition plate 32 is large enough, the fan blade mounting groove 3221 is recessed inward from the second partition plate side surface 322, so that the fan blade mounting groove 3221 has a certain depth recessed from the surface of the second partition plate side surface 322. In this way, the mounting stability of the fan blade mounting groove 3221 to the second fan blade is improved.

[0121] 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 surface 41 facing the air inlet of the shell, and an inner heat exchange side surface 42 facing the fan, wherein the second air duct partition plate 32 comprises a partition plate edge 323 facing the inner heat exchange side surface 42, the inner heat exchange side surface 42 of the heat exchanger 4 comprises a first heat exchange position 421 corresponding to the partition plate edge 323, and the partition plate edge 323 is consistent with the line shape of the first heat exchange position 421. As shown in the drawings. Figure 12

[0122] For example, the line type 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 type of the partition plate 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 partition plate edge 323 is equal.

[0123] The partition plate edge 323 of the second air duct partition plate 32 is consistent with the line shape of the first heat exchange position 421 of the heat exchanger 4, as shown in the drawings, so that the effect of the corresponding arrangement of the second air duct partition plate 32 and the heat exchanger 4 is improved. Figure 12 Figure 14 As shown in the drawings, so that the effect of the corresponding arrangement of the second air duct partition plate 32 and the heat exchanger 4 is improved.

[0124] Optionally, a preset spacing is provided between the partition plate edge 323 and the first heat exchange position 421; or, the partition plate edge 323 and the first heat exchange position 421 are in abutment.

[0125] The spacing between the partition plate edge 323 and the first heat exchange position 421 is less than or equal to 8mm, or the spacing between the partition plate edge 323 and the first heat exchange position 421 is less than or equal to 5mm. When the air conditioner is running in a cooling mode or a dehumidification mode, condensate water is easily generated on the surface of the heat exchanger 4. In the embodiment of the present disclosure, a preset spacing is provided between the partition plate edge 323 and the first heat exchange position 421, which avoids the condensate water of the heat exchanger 4 flowing to the second air duct partition plate 32.

[0126] Optionally, the partition plate 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 the position of the second air duct partition plate 32 close to the partition plate edge 323.

[0127] ​​Optionally, the first air duct partition plate 31 comprises a third partition plate side surface 311 facing the heat exchanger 4, wherein the third partition plate side surface 311 is provided with a stop protrusion 3111 abutting with the top end of the outer heat exchange side surface 41 of the heat exchanger 4.

[0128] The third partition plate side surface 311 of the first air duct partition plate 31 is provided with a stop protrusion 3111 for fixing the top end of the heat exchanger 4, so that no additional heat exchanger 4 mounting bracket is 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.

[0129] Optionally, a wind distribution partition plate assembly 226 is arranged in the second air duct. As shown in Figures 15 to 18

[0130] The second air duct is provided with a wind distribution partition plate assembly 226 for distributing the wind blown out by the second fan 2. The second air duct comprises a first side air duct 21 and a second side air duct 22, and the wind distribution partition plate assembly 226 can guide the wind blown out by the second fan 2 to the first side air duct 21 and the second side air duct 22 respectively, improving the air volume and air uniformity of the first side air outlet 201 and the second side air outlet 202.

[0131] Optionally, the wind distribution partition plate assembly 226 can be a fixedly arranged air deflector structure, or a driveable rotating or oscillating air deflector.

[0132] Optionally, the second air duct comprises a total air duct 23 arranged at the air outlet of the second fan 2, a first side air duct 21 connected between the total air duct 23 and the first side air outlet 201, and a second side air duct 22 connected between the total air duct 23 and the second side air outlet 202, wherein the wind distribution partition plate assembly 226 comprises a wind distribution front end 2264 facing the second fan 2, and at least part of the wind distribution front end 2264 of the wind distribution partition plate assembly 226 is arranged in the total air duct 23 to guide the wind of the total air duct 23 to the first side air duct 21 and the second side air duct 22 respectively.

[0133] The second air duct is divided, wherein the air duct near the air outlet of the second fan 2 is the total air duct 23, the first side air duct 21 is connected between the total air duct 23 and the first side air outlet 201, and the second side air duct 22 is connected between the total air duct 23 and the second side air outlet 202. The division between the total air duct 23 and the first side air duct 21 and the second side air duct 22 can be seen from the dashed line in Figure 17

[0134] ​​Optionally, at least part of the front end 2264 of the air distribution baffle assembly 226 is arranged in the total air outlet channel 23, so that the air distribution baffle assembly 226 has a better air guiding effect on the air discharged by the second air fan 2 to the first side air channel 21 and the second side air channel 22, respectively. In the direction of the air discharged by the second air fan 2, the front end 2264 of the air distribution baffle assembly 226 is located upstream of the air discharged by the second air fan 2, as shown in Figure 18 Optionally, at least half of the front end 2264 of the air distribution baffle assembly 226 is arranged in the total air outlet channel 23.

[0135] Optionally, the air distribution baffle assembly 226 comprises 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 channel 23 to the first side air channel 21, and the second air guide plate 2262 extends from the total air outlet channel 23 to the second side air channel 22.

[0136] The air distribution baffle assembly 226 comprises a first air guide plate 2261 extending to the first side air channel 21, and a second air guide plate 2262 extending to the second side air channel 22. The first air guide plate 2261 extends from the total air outlet channel 23 to the first side air channel 21, which can be understood as that the extension direction of the first air guide plate 2261 is from the direction of the total air outlet channel 23 to the direction of the first side air channel 21; similarly, the second air guide plate 2262 extends from the total air outlet channel 23 to the second side air channel 22, which can be understood as that the extension direction of the second air guide plate 2262 is from the direction of the total air outlet channel 23 to the direction of the second side air channel 22.

[0137] The arrangement of the first air guide plate 2261 and the second air guide plate 2262 improves the air guiding effect of the air distribution baffle assembly 226 to the first side air channel 21 and the second side air channel 22, respectively.

[0138] Optionally, the second air channel is arranged vertically, the first air guide plate 2261 is arranged vertically in the second air channel, and the second air guide plate 2262 is arranged vertically in the second air channel.

[0139] Optionally, the smallest angle between the first air guide plate 2261 and the horizontal direction is β1, wherein 15°<β1≤120°; and / or, the smallest angle between the second air guide plate 2262 and the horizontal direction is β2, wherein 15°<β2≤90°.

[0140] As shown in Figure 19As shown, the smallest included angle β1 between the first flow guide plate 2261 and the horizontal direction is less than or equal to 90°. It can be understood that, when the first flow guide plate 2261 is in an arc shape, the included angle between the first flow guide plate 2261 and the horizontal direction can be understood as the included angle between the tangent line (e.g., the external tangent line) of the end of the first flow guide plate 2261 close to the total air outlet duct 23 and the horizontal direction. Optionally, 30°≤β1≤60°. The embodiment of the present disclosure improves the air distribution effect of the first flow guide plate 2261 to the first side air duct 21.

[0141] Optionally, the smallest included angle β2 between the second flow guide plate 2262 and the horizontal direction is less than or equal to 90°. It can be understood that, the smallest included angle between the second flow guide plate 2262 and the horizontal direction is also the included angle between the end of the second flow guide plate 2262 close to the total air outlet duct 23 and the horizontal direction. When the second flow guide plate 2262 is in an arc shape, the tangent line (e.g., the external tangent line) at the end of the second flow guide plate 2262 close to the total air outlet duct 23 is obtained, and the included angle β2 between the second flow guide plate 2262 and the horizontal direction is obtained. Optionally, 30°≤β2≤60°. The embodiment of the present disclosure improves the air distribution effect of the second flow guide plate 2262 to the second side air duct 22.

[0142] Optionally, the inner wall of the second air duct includes a first flow guide inner wall 2271 forming a flow guide air duct with the first flow guide plate 2261, and a second flow guide inner wall 2272 forming a flow guide air duct with the second flow guide plate 2262. Optionally, the first flow guide inner wall 2271 has the same curvature as the first flow guide plate 2261; or, the first flow guide inner wall 2271 has the same inclination angle as the first flow guide plate 2261; or, 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 from the total air outlet duct 23 to the first side air duct 21.

[0143] When the first flow guide plate 2261 is in an arc shape, the first flow guide inner wall 2271 of the inner wall of the second air duct is also in an arc shape. Optionally, the first flow guide inner wall 2271 has the same curvature as the first flow guide plate 2261, or the first flow guide inner wall 2271 has the same curvature as the first flow guide plate 2261. Optionally, when the first flow guide plate 2261 is in a straight plate shape, the first flow guide inner wall 2271 of the inner wall of the second air duct is also in a straight plate shape. Optionally, the first flow guide inner wall 2271 has the same inclination angle as the first flow guide plate 2261.

[0144] Optionally, 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 from the total air outlet duct 23 to the first side air duct 21. Figure 16As shown, the width of the first flow guide inner wall 2271 and the first flow guide plate 2261 at the 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 the end close to the first side air duct 21 is D2, wherein D1 is less than D2, and gradually increases from D1 to D2.

[0145] It can be understood that the first flow guide inner wall 2271 is Figure 16 As shown in the enlarged section of the inner wall of the second air duct and the first flow guide plate 2261 forming the thickened section of the flow guide air duct.

[0146] Optionally, the second flow guide inner wall 2272 and the second flow guide plate 2262 have the same curvature; or, the second flow guide inner wall 2272 and the second flow guide plate 2262 have the same inclination angle; or, 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 from the total air outlet duct 23 to the second side air duct 22.

[0147] 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, and optionally, the second flow guide inner wall 2272 and the second flow guide plate 2262 have the same curvature, or the second flow guide inner wall 2272 and the second flow guide plate 2262 have the same curvature; optionally, when the second flow guide plate 2262 is a straight plate, the second flow guide inner wall 2272 of the inner wall of the second air duct is also a straight plate, and optionally, the second flow guide inner wall 2272 and the second flow guide plate 2262 have the same inclination angle.

[0148] Optionally, 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 from the total air outlet duct 23 to the second side air duct 22. As shown, Figure 16 As shown, the width of the second flow guide inner wall 2272 and the second flow guide plate 2262 at the end close to 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 at the end close to the second side air duct 22 is D4, wherein D3 is less than D4, and gradually increases from D3 to D4.

[0149] It can be understood that the second flow guide inner wall 2272 is Figure 16 As shown in the enlarged section of the inner wall of the second air duct and the second flow guide plate 2262 forming the thickened section of the flow guide air duct.

[0150] Optionally, a side air duct connection 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 connection position 229.

[0151] The air distribution baffle assembly 226 further comprises a third guide plate 2263 arranged between the first guide plate 2261 and the second guide plate 2262, and the third guide plate 2263 extends from the total air outlet channel 23 to the side air outlet channel connection position 229. In this way, the third guide plate 2263 and the first guide plate 2261 form two guide air channels for distributing the air blown by the second air blower 2 to the first side air outlet channel 21, and similarly, the third guide plate 2263 and the second guide plate 2262 form two guide air channels for distributing the air blown by the second air blower 2 to the second side air outlet channel 22. It can be seen that the arrangement of the third guide plate 2263 improves the air distribution effect of the air blown by the second air blower 2 to the first side air outlet channel 21 and the second side air outlet channel 22, respectively.

[0152] Optionally, the third guide plate 2263 is also vertically arranged; optionally, the third guide plate 2263 is arc-shaped.

[0153] Optionally, the air distribution baffle assembly 226 further comprises a guide plate connecting plate 228 arranged transversely to the first guide plate 2261 and the second guide plate 2262.

[0154] The second air channel has a certain height in the vertical direction, and similarly, the heights of the first guide plate 2261, the second guide plate 2262, and the third guide plate 2263 are substantially the same as the height of the second air channel. It can be seen that the first guide plate 2261, the second guide plate 2262, and the third 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 guide of the vertically arranged first guide plate 2261, the second guide plate 2262, and the third guide plate 2263.

[0155] 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.

[0156] Optionally, the number of guide plate connecting plates 228 is multiple, and the multiple guide plate connecting plates 228 are arranged in a length direction of the first guide plate 2261 and the second guide plate 2262.

[0157] The air distribution baffle assembly 226 comprises multiple guide plate connecting plates 228 arranged at intervals, and the multiple guide plate connecting plates 228 are arranged at intervals in a 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 the vertical direction. Optionally, the spacing between every two adjacent guide plate connecting plates 228 is equal. As shown in FIG. 4. Figure 13 ​

[0158] Optionally, the guide plate connecting plate 228 comprises opposite first and second guide plate ends 2281 and 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.

[0159] 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.

[0160] Optionally, the air conditioner indoor unit further comprises a heat exchanger 4 arranged in the shell, wherein the heat exchanger 4 comprises a first heat exchange portion 431 arranged on the air inlet side of the first fan 1 and a second heat exchange portion 432 arranged on the air inlet side of the second fan 2. The heat exchange area of the first heat exchange portion 431 is smaller than that of the second heat exchange portion 432. Figures 20 to 24

[0161] The heat exchanger 4 comprises a first heat exchange portion 431 arranged on the air inlet side of the first fan 1 and a second heat exchange portion 432 arranged on the air inlet side of the second fan 2. The heat exchanger 4 can be divided in the vertical direction to obtain the second heat exchange portion 432 and the first heat exchange portion 431 distributed vertically. When the first fan 1 is arranged below the second fan 2, the first heat exchange portion 431 is correspondingly arranged below the second heat exchange portion 432, and the division line between the first heat exchange portion 431 and the second heat exchange portion 432 is shown by the dashed line in Figure 21

[0162] Optionally, the refrigerant pipelines of the first heat exchange portion 431 and the second heat exchange portion 432 are arranged in series or in parallel. When the refrigerant pipelines of the first heat exchange portion 431 and the second heat exchange portion 432 are 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 only the upper air outlet 101 is needed to send air, the refrigerant can only flow through the first heat exchange portion 431; and when only the side air outlet is needed to send air, the refrigerant can only flow through the second heat exchange portion 432.

[0163] 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.

[0164] ​​In the embodiments 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 relatively small, and the heat exchange area of the second heat exchange portion 432 corresponding to the cross-flow fan is relatively large, thereby improving the overall air supply of the air conditioner indoor unit.

[0165] 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.

[0166] 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.

[0167] Optionally, the heat exchanger 4 comprises a first heat exchange section 433 and a second heat exchange section 434, and the first heat exchange section 433 comprises heat exchange portions 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 comprises heat exchange portions 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 with a first heat exchange connection position 435 in an arc shape or a bent shape.

[0168] 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 comprises 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 comprises the first heat exchange section 433 and the second heat exchange section 434.

[0169] Optionally, the first heat exchange section 433 is a straight section, and the second heat exchange section 434 is a straight section, and the first heat exchange section 433 and the second heat exchange section 434 are arranged with a first heat exchange connection position 435 in an arc shape or a bent shape, as shown in Figure 22 and Figure 23 .

[0170] Optionally, the second fan 2 is provided with a first air duct 11 partition plate and a second air duct partition plate 32, and the first air duct 11 partition plate is arranged on the upper portion of the second air duct partition plate 32. The first air duct 11 partition plate is provided with a first air duct opening 301 communicating with the first air duct 11, and the second air duct partition plate 32 is provided with a second air duct opening 302 communicating with the first air duct 11.

[0171] Optionally, the housing includes a first side shell portion 51 near the first air duct 11, and a second air duct opening 302 is opened from the first starting position 3023 of the second air duct partition 32 toward the first side shell portion 51. The vertical extension line where the first starting position 3023 is located is set as the first extension line, wherein the first extension line passes through the first heat exchange connection position 435; or, the first heat exchange connection position 435 and the second air duct opening 302 are located on the same side of the first extension line.

[0172] The first extension line is as follows Figure 22 As shown by the vertical dashed line in the image, Figure 22 In this embodiment, the first extension line passes through the first heat exchange connection position 435. Alternatively, the first heat exchange connection position 435 and the second air duct opening 302 are located on the same side of the first extension line, for example, with... Figure 22 Taking the orientation shown as an example, the first heat exchange connection position 435 and the second air duct opening 302 can both be located on the left side of the first extension line. This increases the air volume delivered by the first fan 1.

[0173] Optionally, a side air duct connection position 229 is provided between the first side air duct 21 and the second side air duct 22. The line connecting the center of the second fan 2 and the first heat exchange connection position 435 forms a first straight line, and the line connecting the center of the second fan 2 and the side air duct connection position 229 forms a second straight line. The angle r between the first straight line and the second straight line is greater than or equal to a second preset angle. Figure 23 As shown.

[0174] Optionally, a first straight line can be obtained by connecting the center of the first heat exchange connection position 435 with the center of the second fan 2; or, a first straight line can be obtained by connecting the position closest to the shell in the first heat exchange connection position 435 with the center of the second fan 2.

[0175] In this embodiment, the angle between the first straight line and the second straight line is r, and 90°≤r≤270°, thus improving the heat exchange effect between the second fan 2 and the heat exchanger 4. Optionally, 130°≤r≤140°.

[0176] Optionally, 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 disposed 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 a first preset width.

[0177] 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 less than or equal to the first preset width. 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 less than or equal to the first preset width.

[0178] Optionally, 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.

[0179] Optionally, 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, thereby improving the heat exchange effect of the second fan 2 and the heat exchanger 4.

[0180] Optionally, 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.

[0181] The innermost arc-shaped section of the arc-shaped heat exchange section is taken as the bending radius R, as shown in the bold 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 less than or equal to the first preset width.

[0182] Optionally, 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.

[0183] Optionally, the inner arc-shaped section of the first heat exchange connection position 435 is Figures 25 to 31 as shown in the bold part in the middle. The arc length of the inner arc-shaped section is greater than or equal to 5mm, and the arc length of the inner arc-shaped section can be 5mm, 8mm, 15mm, 20mm, 30mm, etc.

[0184] The embodiment of the present disclosure also provides a fixing method of a centrifugal fan. As shown in Figure 25 .

[0185] Optionally, the first fan comprises a centrifugal fan, the centrifugal fan further comprises a centrifugal volute 17, a centrifugal fan blade 12 and a first driving motor for driving the centrifugal fan blade 12 to rotate, and a vertical fixed support plate 13 is further arranged in the shell, and the centrifugal volute 17 of the centrifugal fan is fixed to the fixed support plate 13. As shown in Figure 26

[0186] The fixed support plate 13 is vertically arranged in the shell, and the centrifugal volute 17 of the centrifugal fan is fixedly arranged on the fixed support plate 13, so that the centrifugal fan can be vertically fixed in the shell. Optionally, the centrifugal fan is fixed to the fixed support plate 13 by bolts; optionally, the first driving motor is fixed to the fixed support plate 13 by a fixed shaft and bolts, thereby realizing the fixation of the centrifugal fan in the horizontal direction.

[0187] Optionally, the centrifugal volute 17 of the centrifugal fan is fixed to the fixed support plate 13 by one or more fixing bolts and protrusions, thereby saving the use of screws and reducing the installation cost.

[0188] Optionally, the centrifugal fan comprises a first centrifugal end 1011 provided with an air inlet port 171 of the centrifugal fan and a second centrifugal end opposite to the first centrifugal end 1011, and the fixed support plate 13 is arranged at the second centrifugal end of the centrifugal fan.

[0189] The fixed support plate 13 is arranged at the second centrifugal end of the centrifugal fan opposite to the air inlet port 171. Optionally, the fixed support plate 13 is in the form of a flat plate, and the flat plate-shaped fixed support plate 13 is arranged in close contact with the second centrifugal end of the centrifugal fan, thereby improving the fixation stability of the fixed support plate 13 to the centrifugal fan.

[0190] Optionally, the height and width of the fixed support plate 13 are equal to the height and width of the second centrifugal end of the centrifugal volute 17 of the centrifugal fan, respectively. Optionally, the fixed support plate 13 is a sheet metal support member.

[0191] Optionally, a support base 14 is further arranged in the shell, and the support base 14 is arranged at the bottom of the centrifugal fan, wherein the support base 14 is provided with a support slot, and the bottom of the centrifugal volute 17 of the centrifugal fan is provided with a plug-in column plugged into the support slot.

[0192] The support base 14 is arranged at the bottom of the centrifugal fan for supporting the centrifugal fan from the bottom. Moreover, the support base 14 is provided with a support slot, and the bottom of the centrifugal volute 17 is provided with a plug-in column plugged into the support slot, thereby improving the support stability of the support base 14 to the centrifugal fan. Optionally, the support slot has a certain width and depth, and similarly, the shape and volume of the plug-in column are the same as those of the support slot.

[0193] ​Optionally, the fixed support plate 13 comprises a vertical fixed support plate body 131 and a support plate folded edge bent and connected with the fixed support plate body 131, the support plate folded edge comprises a bottom folded edge 132 arranged at the bottom and a top folded edge 133 arranged at the top, wherein the support base 14 is provided with a first clamping column 144, the bottom folded edge 132 is provided with a first through slot for being inserted with the first clamping column 144, the bottom of the second air duct is provided with a second clamping column 24, and the top folded edge 133 is provided with a second through slot 1331 for being inserted with the second clamping column 24. As shown in Figure 29 .

[0194] The fixed support plate body 131 is provided with the bottom folded edge 132. Optionally, the fixed support plate body 131 is bent and connected with the bottom folded edge 132 at a right angle. The bottom folded edge 132 is provided with the first through slot, and the support base 14 is provided with the first clamping column 144 at a position corresponding to the bottom folded edge 132, and the first clamping column 144 is clamped in the first through slot. Optionally, the number of the first through slot and the first clamping column 144 can be multiple. In this way, the number of screws used in the fixing process of the centrifugal fan is reduced, and the cost is saved.

[0195] The fixed support plate body 131 is also provided with the top folded edge 133. Optionally, the fixed support plate body 131 is bent and connected with the top folded edge 133 at a right angle. The top folded edge 133 is provided with the second through slot 1331, and the second air duct is provided with the second clamping column 24 at a position corresponding to the top folded edge 133, and the second clamping column 24 is clamped in the second through slot 1331. Optionally, the number of the second through slot 1331 and the second clamping column 24 can be multiple. In this way, the number of screws used in the fixing process of the centrifugal fan is reduced, and the cost is saved. As shown in Figure 27 .

[0196] Optionally, the support base 14 is provided with an arc-shaped limiting slot 143, the lower part of the centrifugal volute 17 of the centrifugal fan is fixedly arranged in the arc-shaped limiting slot 143, the support slot comprises a first support slot 141 and a second support slot 142, the insertion column of the bottom of the centrifugal volute 17 comprises a first insertion column 151 inserted in the first support slot 141 and a second insertion column 152 inserted in the second support slot 142, wherein the arc-shaped limiting slot 143 comprises a first half-arc support seat 1431 and a second half-arc support seat 1432, and the first support slot 141 is arranged in the first half-arc support seat 1431, and the second support slot 142 is arranged in the second half-arc support seat 1432. As shown in Figure 28 and Figure 30 .

[0197] The first half-arc support seat 1431 is opposite to the second half-arc support seat 1432, and an arc-shaped limiting groove 143 is obtained. The lower part of the centrifugal volute 17 of the centrifugal fan is also approximately arc-shaped or semicircular, and is arranged in the arc-shaped limiting groove 143, so that the fixing stability of the lower part of the centrifugal fan is improved. Alternatively, the first half-arc support seat 1431 and the second half-arc support seat 1432 are integrally formed.

[0198] The semicircular surface of the first half-arc support seat 1431 is inwardly recessed to obtain a first support slot 141, and similarly, the semicircular surface of the second half-arc support seat 1432 is inwardly recessed to obtain a second support slot 142. The first plug-in column 151 at the bottom of the centrifugal volute 17 is plugged into the first support slot 141, and the second plug-in column 152 at the bottom of the centrifugal volute 17 is plugged into the second support slot 142, so that the fixing stability of the lower part of the centrifugal fan is improved.

[0199] Alternatively, a heat exchanger support seat 145 is further arranged on the support base 14, wherein a balance support plate 16 is arranged between the first centrifugal end 1011 of the centrifugal fan and the heat exchanger support seat 145. Figure 31 As shown.

[0200] The balance support plate 16 is arranged between the first centrifugal end 1011 of the centrifugal fan and the heat exchanger support seat 145, so that the balance during the fixing process of the centrifugal fan is improved. Alternatively, the two ends of the balance support plate 16 are fixed to the first centrifugal end 1011 of the centrifugal fan and the heat exchanger support seat 145, respectively. Alternatively, the balance support plate 16 avoids the air inlet port 171 of the centrifugal fan. Alternatively, the balance support plate 16 is two, and is arranged at the two ends of the air inlet port 171 of the centrifugal fan. Alternatively, the balance support plate 16 is a sheet metal support plate.

[0201] Alternatively, the balance support plate 16 and the fixing support plate 13 are arranged at the same height.

[0202] Alternatively, the height of the bottom end of the air inlet port 171 of the centrifugal fan is a first height, the height of the top end of the heat exchanger support seat 145 is a second height, and the height of the bottom end of the arc-shaped limiting groove 143 is a third height, wherein the second height is less than the first height; and / or the third height is less than the second height. As shown. ​

[0203] For example, the first height T1 is the distance from the bottom end of the air inlet port 171 of the centrifugal fan to the lowermost end of the support base 14, the second height T2 is the distance from the top end of the heat exchanger support seat 145 to the lowermost end of the support base 14, and the third height T3 is the distance from the bottom end of the arc-shaped limiting groove 143 to the lowermost end of the support base 14.​

[0204] In the embodiments of the present disclosure, the second height T2 is less than the first height T1, so that the heat exchanger support seat 145 avoids shielding the air inlet port 171 of the centrifugal fan; the third height T3 is less than the second height T2, so that the arc-shaped limiting groove 143 plays a supporting role while not increasing the overall height of the air conditioner indoor unit too much, which is conducive to miniaturization of the model.

[0205] The floor type air conditioner indoor unit provided by the embodiments of the present disclosure is fixed through three sides, i.e., the side surface, the bottom surface and the top surface, and the centrifugal fan is fixed in two directions, i.e., the horizontal direction and the vertical direction, by using fixing bolts, grooves, bolts and other fixing modes, so that the use of screws is reduced, the cost is reduced, the installation strength of the centrifugal fan is increased, the installation reliability is ensured, the risk of instability and falling is avoided, and the risk of abnormal sound is reduced.

[0206] The embodiments of the present disclosure also provide an air conditioner comprising the aforementioned air conditioner indoor unit.

[0207] The above description and drawings sufficiently show 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 represent only the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Some parts and features of some embodiments can be included or replaced by parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures 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 floor standing air conditioner indoor unit, characterized in that, The application relates to a double-fan floor type air conditioner indoor unit. 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 connected with the first air duct, and the side part of the shell is provided with a side air outlet connected with the second air duct. 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 for upper air outlet, and the second fan is connected with the side air outlet through the second air duct for side air supply. The first fan comprises a centrifugal fan, the centrifugal fan further comprises a centrifugal volute, a centrifugal fan blade and a first driving motor for driving the centrifugal fan blade to rotate, and a vertically arranged fixed support plate is further arranged in the shell, and the centrifugal volute of the centrifugal fan is fixed to the fixed support plate.

2. The double-fan floor type air conditioner indoor unit according to claim 1, wherein the centrifugal fan comprises a first centrifugal end provided with an air inlet port of the centrifugal fan and a second centrifugal end opposite to the first centrifugal end, and the fixed support plate is arranged at the second centrifugal end of the centrifugal fan.

3. The double-fan floor type air conditioner indoor unit according to claim 2, wherein a support base is further arranged in the shell and arranged at the bottom of the centrifugal fan, and the support base is provided with a support slot.

4. The double-fan floor type air conditioner indoor unit according to claim 3, wherein the fixed support plate comprises a vertically arranged fixed support plate body and a support plate folded edge bently connected with the fixed support plate body, the support plate folded edge comprises a bottom folded edge arranged at the bottom and a top folded edge arranged at the top, the support base is provided with a first clamping column, the bottom folded edge is provided with a first through slot for clamping the first clamping column, the bottom of the second air duct is provided with a second clamping column, and the top folded edge is provided with a second through slot for clamping the second clamping column.

5. The double-fan floor type air conditioner indoor unit according to claim 3, wherein an arc-shaped limiting slot is arranged on the support base, the lower part of the centrifugal volute of the centrifugal fan is fixedly arranged in the arc-shaped limiting slot, the support slot comprises a first support slot and a second support slot, the clamping column of the bottom of the centrifugal volute comprises a first clamping column clamped in the first support slot and a second clamping column clamped in the second support slot, and the arc-shaped limiting slot comprises a first half-arc support seat and a second half-arc support seat, the first support slot is arranged in the first half-arc support seat, and the second support slot is arranged in the second half-arc support seat.

6. The double-fan floor type air conditioner indoor unit according to claim 5, wherein a heat exchanger support seat is further arranged on the support base, and a balance support plate is arranged between the heat exchanger support seat and the first centrifugal end of the centrifugal fan.

7. The double-fan floor type air conditioner indoor unit according to claim 6, wherein the balance support plate has the same height as the fixed support plate.

8. The double-fan floor type air conditioner indoor unit according to claim 6, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The height of the bottom end of the air inlet port of the centrifugal fan is a first height, the height of the top end of the heat exchanger support seat is a second height, and the height of the bottom end of the arc-shaped limiting groove is a third height, wherein The second height is less than the first height; and / or The third height is less than the second height.

9. The dual-fan floor standing air conditioner indoor unit according to any one of claims 1 to 8, characterized in that, The side air outlet comprises a first side air outlet and a second side air outlet, and the second air duct comprises a first side air duct in communication with the first side air outlet, and a second side air duct in communication with the second side air outlet, The first air duct is arranged on one side of the second side air duct.

10. An air conditioner characterized by comprising: The dual-fan floor standing air conditioner indoor unit according to any one of claims 1 to 9.

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