Air conditioner indoor unit and air conditioner with same

Abstract

The utility model provides an air conditioner indoor unit and an air conditioner with the air conditioner indoor unit, the air conditioner indoor unit comprises an air duct assembly, a first cross-flow fan and a shunting assembly, the air duct assembly comprises a front vortex tongue and a rear vortex tongue, and an air outlet duct is defined between the front vortex tongue and the rear vortex tongue; the flow dividing assembly comprises a flow dividing piece and a second cross-flow fan. The flow dividing piece is arranged at a downstream outlet of the air outlet channel. The shunting piece is provided with a first windward side corresponding to the front vortex tongue and a second windward side corresponding to the rear vortex tongue, a first air duct is formed between the first windward side and the front vortex tongue, and a second air duct is formed between the second windward side and the rear vortex tongue; an air inlet of the diversion channel penetrates through the first windward side, and an air outlet of the diversion channel penetrates through the leeward side of the diversion piece; and the second cross-flow fan is arranged at the air outlet. According to the air conditioner indoor unit, the air supply amount is uniform, and the indoor temperature difference can be small.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air conditioner, in particular to an air conditioner indoor unit and air conditioner with it. BACKGROUND

[0002] With the development of technology, the demand of users for indoor air quality and environmental comfort is increasing, so more and more air treatment equipment emerges as the times require. The volute of the air conditioner in the related art forms an air outlet air duct, a flow splitting structure is arranged at the air outlet end of the air outlet air duct, so that the air outlet end forms two air outlets, so that the air conditioner blows air to two different directions of the room, expands the air supply range, and only one cross-flow fan is arranged to make the manufacturing of the air conditioner lower. However, the airflow formed by the cross-flow fan of the air conditioner in the related art may be deviated to one side of the front tongue, so that the air outlet amount of the air outlet near the one side of the front tongue is more than that of the other air outlet far from the front tongue, resulting in that the air volume of the air conditioner blowing to two directions of the room is not uniform, causing the problem that the indoor temperature difference is large, and the user experience is low. SUMMARY

[0003] In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems, and aims to solve the problem that the air volume of the air conditioner blowing is not uniform, resulting in that the indoor temperature difference is large.

[0004] Specifically, the utility model provides an air conditioner indoor unit.

[0005] The air conditioner indoor unit of the utility model comprises an air duct assembly, the air duct assembly comprises a front tongue and a rear tongue, and an air outlet air duct is defined between the front tongue and the rear tongue; a first cross-flow fan is arranged at the upstream of the air outlet air duct; a flow splitting assembly comprises a flow splitting piece and a second cross-flow fan, and the flow splitting piece is arranged at the downstream outlet of the air outlet air duct; the flow splitting piece has a first windward surface corresponding to the front tongue and a second windward surface corresponding to the rear tongue, a first air duct is formed between the first windward surface and the front tongue, and a second air duct is formed between the second windward surface and the rear tongue; the flow splitting piece is provided with a flow guide channel, the air inlet of the flow guide channel penetrates the first windward surface, and the air outlet of the flow guide channel penetrates the leeward surface of the flow splitting piece; the second cross-flow fan is arranged at the air outlet to promote the formation of airflow entering the flow guide channel from the air inlet and blowing out from the air outlet to the second air duct.

[0006] In some embodiments, the first air duct comprises a first section and a second section in the air outlet direction of the first air duct, the second section is located on the downstream side of the first section, the first section and the second section are smoothly connected, and the air inlet is arranged on the first section;

[0007] In a cross section perpendicular to the rotational axis of the second cross-flow fan, the width of the first section increases in the air outlet direction, and the width of the second section decreases in the air outlet direction.

[0008] In some embodiments, in a cross section perpendicular to the rotational axis of the second cross-flow fan, the minimum width of the first section is greater than the minimum width of the second section.

[0009] In some embodiments, in a cross section perpendicular to the rotational axis of the second cross-flow fan, the width of the second air duct first decreases and then increases in the air outlet direction thereof; and / or, the width of the inlet end of the second air duct is less than the width of the inlet end of the first air duct.

[0010] In some embodiments, the flow splitter defines a chamber, and a plurality of first through holes are formed in the first windward surface of the flow splitter and communicate with the chamber, the first through holes form the air inlet, and the first through holes are spaced apart in the extension direction of the second cross-flow fan; at least one second through hole is formed in the leeward surface of the flow splitter and communicates with the chamber, and the second through hole forms the air outlet; the first through hole, the chamber, and the second through hole form the flow guide channel.

[0011] In some embodiments, the second cross-flow fan is arranged at the second through hole, and the second cross-flow fan is located in the chamber.

[0012] In some embodiments, the second through hole comprises first and second spaced apart side walls, and the second cross-flow fan is located between the first and second side walls.

[0013] The first side wall comprises a first end and a second end, the first end is closer to the first through hole than the second end, and the first end is farther away from the second air duct than the second end; the second side wall comprises a third end and a fourth end, the third end is closer to the first through hole than the fourth end, and the third end is farther away from the second air duct than the fourth end.

[0014] In some embodiments, the distance between the second cross-flow fan and the first side wall is greater than the distance between the second cross-flow fan and the second side wall.

[0015] In some embodiments, in a cross section perpendicular to the rotational axis of the second cross-flow fan, the included angle between the first windward surface and the second windward surface is 45°-60°.

[0016] The air conditioner comprises the indoor unit of any one of the preceding embodiments.

[0017] The indoor air conditioner of the embodiment of the present application, the flow dividing member arranged at the downstream outlet of the air outlet air duct has a flow guide channel communicating with the first air duct. When the airflow flows through the first air duct and the second air duct, the second cross-flow fan can cause a part of the airflow in the first air duct to enter the flow guide channel, and when the part of the airflow is blown out from the leeward surface of the flow dividing member, the part of the airflow is blown out obliquely towards the side of the second air duct, thereby increasing the air volume blown into the room from the side of the second air duct, and thus making the air outlet volumes of the first air duct and the second air duct more uniform.

[0018] In addition, the air outlet of the flow guide channel is arranged on the leeward surface, that is, the air outlet of the flow guide channel is not arranged in the second air duct, so that the airflow blown out from the air outlet of the flow guide channel does not enter the second air duct, but is blown out obliquely towards the side of the second air duct, and then blown into the room from the side of the second air duct together with the second airflow blown out from the second air duct, so that the pressure in the second air duct is not increased, and the loss of energy of the airflow in the second air duct is avoided, and thus the air supply distance on the side of the second air duct can be longer.

[0019] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of the embodiments thereof, when considered with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Some specific embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings, which are presented by way of illustration and not of limitation. The same reference numbers in the drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0021] Figure 1 is a sectional view of the indoor air conditioner of the embodiment of the present application;

[0022] Figure 2 is a sectional view of the indoor air conditioner of the embodiment of the present application;

[0023] Figure 3 is a sectional view of the indoor air conditioner of the embodiment of the present application;

[0024] Figure 4 is a sectional view of the indoor air conditioner of the embodiment of the present application; Figure 2 is a sectional view of the indoor air conditioner of the embodiment of the present application;

[0025] Figure 5 is a sectional view of the indoor air conditioner of the embodiment of the present application;

[0026] Figure 6 is a sectional view of the indoor air conditioner of the embodiment of the present application.

[0027] Figure label:

[0028] Air duct assembly 100; front vortex 110; first downstream section 111; rear vortex 120; second downstream section 121; air outlet duct 130; first air duct 140; first section 141; second section 142; second air duct 150; flow splitter assembly 200; flow splitter 210; first windward surface 211; second windward surface 212; leeward surface 213; guide channel 214; chamber 220; first through hole 230; second through hole 240; first side wall 241; first end 242; second end 243; second side wall 244; third end 245; fourth end 246; second cross-flow fan 220; housing 300; first opening 310; second opening 320; heat exchanger 400; first cross-flow fan 500; first air guide plate 610; second air guide plate 620. Detailed Implementation

[0029] The following reference Figures 1 to 6 This invention describes an indoor air conditioning unit and an air conditioner having the same, according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0030] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In addition, in the description of the embodiments, the first feature being "on" or "under" the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of the embodiments, the first feature being "on", "above", and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is higher in horizontal height than the second feature. The first feature being "under", "below", or "underneath" the second feature can be the first feature being directly below or obliquely below the second feature, or merely means that the first feature is lower in horizontal height than the second feature.

[0032] In the description of the embodiments, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the description, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The indoor unit of the air conditioner according to the embodiments of the utility model is described below with reference to the accompanying drawings.

[0034] As shown in Figures 1-5 The indoor unit of the air conditioner according to the embodiments of the utility model includes an air duct assembly 100, a first cross-flow fan 500, and a flow splitting assembly 200.

[0035] The air duct assembly 100 includes a front vortex tongue 110 and a rear vortex tongue 120, and the front vortex tongue 110 and the rear vortex tongue 120 define an air outlet air duct 130 therebetween.

[0036] The first cross-flow fan 500 is arranged upstream of the air outlet air duct 130, and the rotation of the first cross-flow fan 500 can cause the indoor air to enter the air outlet air duct 130, pass through the upstream and downstream of the air outlet air duct 130 in turn, and finally be blown into the indoor.

[0037] The airflow splitter assembly 200 includes a splitter 210 and a second cross-flow fan 220. The splitter 210 is located at the downstream outlet of the air outlet duct 130. The splitter 210 has a first windward surface 211 corresponding to the front vortex 110 and a second windward surface 212 corresponding to the rear vortex 120. That is, the first windward surface 211 is the windward portion of the splitter 210 facing the front vortex 110, and the second windward surface 212 is the windward portion of the splitter 210 facing the rear vortex 120. A first airflow duct 140 is formed between the first windward surface 211 and the first downstream portion 111 of the front vortex 110, and a second airflow duct 150 is formed between the second windward surface 212 and the second downstream portion 121 of the rear vortex 120. In other words, the downstream outlet is divided into a first air duct 140 and a second air duct 150 by the diverter 210. When the airflow passes through the downstream outlet, it is diverted by the diverter 210 and enters the first air duct 140 and the second air duct 150 respectively. The diverted airflow is then blown into the room through the first air duct 140 and the second air duct 150 respectively.

[0038] The flow divider 210 is provided with a guide channel 214. The air inlet of the guide channel 214 penetrates the first windward surface 211, and the air outlet of the guide channel 214 penetrates the leeward surface 213 of the flow divider 210, allowing the airflow of the second air duct 150 to enter the guide channel 214 through the air inlet. The second cross-flow fan 220 is located at the air outlet to promote the formation of airflow that enters the guide channel 214 from the air inlet and is blown out at an angle towards the second air duct 150 from the air outlet. That is, the rotation of the second cross-flow fan 220 can create a negative pressure in the guide channel 214, drawing a portion of the airflow in the second air duct 150 into the guide channel 214. The rotation of the second cross-flow fan 220 causes the air from the guide channel 214 to be blown out in a direction close to the second air duct 150.

[0039] like Figure 3 As shown, during operation of the indoor unit of the air conditioner in this embodiment, the first cross-flow fan 500 rotates, drawing indoor air into the air outlet duct 130, forming an airflow flowing upstream to downstream of the air outlet duct 130. When the airflow reaches the diverter 210, it is divided into a first airflow and a second airflow. The first airflow flows into the first air duct 140, and the second airflow flows into the first air duct 140. Specifically, when the first airflow passes through the air inlet located on the first windward surface 211, a portion of the first airflow is drawn into the guide channel 214 due to the negative pressure created by the second cross-flow fan 220. The rotation of the second cross-flow fan 220 then causes this portion of the first airflow in the guide channel 214 to tilt and be blown out towards one side of the second air duct 150, merging with the second airflow blown out from the second air duct 150 and entering the room from one side of the second air duct 150. The other portion of the first airflow is blown into the room from the second air duct 150.

[0040] Compared with the related art, the indoor air conditioner of the embodiment of the utility model, the shunt 210 arranged at the downstream outlet of the air outlet air duct 130 has the flow guide channel 214 connected with the first air duct 140. When the airflow flows through the first air duct 140 and the second air duct 150, the second cross-flow fan 220 can make a part of the airflow in the first air duct 140 enter the flow guide channel 214, and when the part of the airflow is blown out from the leeward surface 213 of the shunt 210, the part of the airflow is blown out obliquely towards one side of the second air duct 150, thereby increasing the air volume blown into the room from one side of the second air duct 150, and thus the air volume blown out along the first air duct 140 and the air volume blown out along the first air duct 140 of the indoor air conditioner of the embodiment of the utility model are more uniform.

[0041] Moreover, the air outlet of the flow guide channel 214 is arranged on the leeward surface 213, that is, the air outlet of the flow guide channel 214 is not arranged in the second air duct 150, so that the airflow blown out from the air outlet of the flow guide channel 214 does not enter the second air duct 150, but is blown out obliquely towards one side of the second air duct 150, and then blown into the room from one side of the second air duct 150 together with the second airflow blown out from the second air duct 150, thereby not increasing the pressure in the second air duct 150, avoiding the loss of energy of the airflow in the second air duct 150, and thus the air supply distance of one side of the second air duct 150 can be longer.

[0042] As shown in Figures 1-5 The indoor air conditioner of the embodiment of the utility model comprises a shell 300, a heat exchanger 400, an air duct assembly 100, a first cross-flow fan 500 and a shunt assembly 200.

[0043] The heat exchanger 400, the air duct assembly 100, the first cross-flow fan 500 and the shunt assembly 200 are all arranged in the shell 300. The shell 300 is provided with a first opening 310 and a second opening 320, the first downstream part 111 of the front volute tongue 110 and the first downstream part 111 of the rear volute tongue 120 are both connected with the second opening 320, and the first cross-flow fan 500 is arranged at the upstream of the air outlet air duct 130 formed between the front volute tongue 110 and the rear volute tongue 120. The heat exchanger 400 is arranged between the first opening 310 and the first cross-flow fan 500.

[0044] When the air conditioner of the embodiment is running, the first cross-flow fan 500 rotates to make the airflow in the room enter the shell 300 from the first opening 310 and exchange heat with the heat exchanger 400. The airflow after heat exchange enters the air outlet air duct 130, passes through the first air duct 140 and the second air duct 150 after passing through the shunt 210, and is blown into the room through the second opening 320.

[0045] In some embodiments, as Figure 3As shown, the first air duct 140 comprises a first section 141 and a second section 142 in the air outlet direction of the first air duct 140, the second section 142 is located at the downstream side of the first section 141, and the first section 141 and the second section 142 are smoothly connected, and the air inlet is arranged on the first section 141. In the cross section perpendicular to the rotation axis of the second cross-flow fan 220, the width of the first section 141 increases in the air outlet direction, and the width of the second section 142 decreases in the air outlet direction.

[0046] In other words, the cross-sectional structure of the first air duct 140 expands first and then decreases in the air outlet direction. Wherein, the width of the first section 141 can refer to the size of the first section 141 in the direction perpendicular to the rotation axis of the second cross-flow fan 220 and the air outlet direction thereof in the above cross section; the width of the second section 142 can refer to the size of the second section 142 in the direction perpendicular to the rotation axis of the second cross-flow fan 220 and the air outlet direction thereof in the above cross section.

[0047] And the size of the second section 142 gradually decreases, so that the airflow forms accumulation in the first section 141, and the static pressure in the first section 141 is larger. The air inlet is arranged on the first section 141, so that the airflow in the first air duct 140 is more easily introduced into the guide channel 214 through the air inlet, thereby increasing the airflow of the airflow blown to the side of the second air duct 150 by the guide channel 214, and further increasing the overall air outlet amount of the side of the second air duct 150, so that the air outlet amount of the air conditioner indoor unit along the first air duct 140 and the air outlet amount of the air conditioner indoor unit along the first air duct 140 are more uniform.

[0048] And the size of the first section 141 gradually increases, so that the kinetic pressure of the airflow flowing into the first section 141 is converted into static pressure, and the energy loss of a part of the airflow in the first section 141 colliding with the wall surface of the guide channel 214 when entering the guide channel 214 is reduced, thereby reducing the wind loss.

[0049] For example Figure 5 As shown, the width of the inlet end of the first section 141 is D1, the width of the outlet end of the first section 141 and the width of the inlet end of the second section 142 are both D2, and the width of the outlet end of the second section 142 is D3. Wherein, D1 and D3 are both less than D2.

[0050] Further, as shown in the drawings, Figure 6 As shown, in the cross section perpendicular to the rotation axis of the second cross-flow fan 220, the width of the second air duct 150 first decreases and then increases in the air outlet direction thereof. In other words, the cross-sectional structure of the second air duct 150 expands first and then decreases in the air outlet direction. Wherein, the width of the second air duct 150 can refer to the size of the second air duct 150 in the direction perpendicular to the rotation axis of the second cross-flow fan 220 and the air outlet direction thereof in the above cross section.

[0051] For example Figure 6 As shown, the width dimension of the inlet end of the second air duct 150 is L1, the width dimension of the outlet end of the second air duct 150 is L3, and the width dimension of a certain part of the second air duct 150 between the outlet end and the inlet end is D2. Wherein, L1 and L3 are both greater than L2.

[0052] When the air flow flowing into the first air duct 140 is more, due to the width dimension of the second section 142 is reduced, the air flow is difficult to pass through the second section 142 and forms fluid accumulation, so that the static pressure in the second air duct 150 is increased, thereby the air flow flowing into the downstream of the outlet air duct 130 is more likely to enter the second air duct 150, so that more air flow flows into the second air duct 150.

[0053] When the air flow flowing into the second air duct 150 is more, due to the width dimension of the upstream of the second air duct 150 is reduced in the outlet direction, the air flow is difficult to pass through the upstream of the second air duct 150 and forms fluid accumulation, so that the static pressure in the second air duct 150 is increased, thereby the air flow flowing into the downstream of the outlet air duct 130 is more likely to enter the first air duct 140, so that more air flow flows into the first air duct 140.

[0054] That is, by using the structure that the width in the outlet direction of the first air duct 140 is first expanded and then reduced, and the structure that the width in the outlet direction of the second air duct 150 is first reduced and then expanded, the air flow flowing into the one with greater static pressure of the first air duct 140 and the second air duct 150 is reduced, so as to avoid the energy loss of the air flow due to the excessive air flow flowing into the first air duct 140 or the second air duct 150. Therefore, not only the purpose of making the outlet air volume along the first air duct 140 and the outlet air volume along the first air duct 140 more uniform is achieved, but also the energy loss of the air flow is reduced, so that the air supply distance of the air conditioner indoor unit of the embodiment is increased.

[0055] Further, as shown in the figure, Figure 5 In the cross section perpendicular to the rotation axis of the second cross flow fan 220, the minimum width dimension of the first section 141 is greater than the minimum width dimension of the second section 142. That is, D1 is greater than D3.

[0056] The outlet end of the second section 142 is located in the atmospheric environment, due to the width dimension of the second section 142 is gradually reduced, and the minimum width dimension of the first section 141 is greater than the minimum width dimension of the second section 142, the pressure drop at the outlet end of the second section 142 is large, so that the air flow is not easy to pass through the first air duct 140, thereby the air flow flowing into the first air duct 140 is increased, so that the outlet air volume of the first air duct 140 and the second air duct 150 is more uniform.

[0057] In some embodiments, the width of the inlet end of the second air duct 150 is smaller than the width of the inlet end of the first air duct 140. For example, the width of the inlet end of the second air duct 150 is 5-10mm smaller than the width of the inlet end of the first air duct 140. Figure 6 As shown, D3 is greater than L3. Thus, the size of the second air duct 150 is prevented from being too large, which would generate a large noise when the air flow flows into the second air duct 150. Moreover, since a portion of the air flow in the first air duct 140 blows towards the outlet of the second air duct 150 through the guide channel 214, the air volume of the air flow blowing in the outlet direction of the second air duct 150 is kept uniform with the air volume of the air flow blowing in the outlet direction of the first air duct 140 when the size of the second air duct 150 is small.

[0058] In some embodiments, as shown in FIG. 2, the shunt 210 defines a chamber 220, and the first windward surface 211 of the shunt 210 is provided with a plurality of first through holes 230 communicating with the chamber 220, the first through holes 230 forming air inlets, and the plurality of first through holes 230 are arranged in the extension direction of the second cross-flow fan 220. Figure 4 As shown, the shunt 210 defines a chamber 220, and the first windward surface 211 of the shunt 210 is provided with a plurality of first through holes 230 communicating with the chamber 220, the first through holes 230 forming air inlets, and the plurality of first through holes 230 are arranged in the extension direction of the second cross-flow fan 220.

[0059] The plurality of first through holes 230 are arranged in the extension direction of the rotation axis of the second cross-flow fan in sequence, which on one hand can ensure that the air flow in the first air duct 140 can enter the chamber 220 uniformly and in a large amount, thereby improving the air volume of the air blowing towards the outlet of the second air duct 150. On the other hand, the remaining area of the portion of the first windward surface 211 provided with the plurality of first through holes 230 can guide the air flow normally, so that the resistance of the air flow in this area is small, thereby reducing the energy loss of the air flow.

[0060] In some alternative embodiments, the second through hole 240 can be an elongated hole extending in the extension direction of the rotation axis of the second cross-flow fan; or, the second through hole 240 can be a plurality of second through holes 240 arranged in the extension direction of the rotation axis of the second cross-flow fan on the leeward surface 213 of the shunt 210.

[0061] In some embodiments, as shown in FIG. 2, the shunt 210 defines a chamber 220, and the first windward surface 211 of the shunt 210 is provided with a plurality of first through holes 230 communicating with the chamber 220, the first through holes 230 forming air inlets, and the plurality of first through holes 230 are arranged in the extension direction of the second cross-flow fan 220. Figures 1-3As shown, the second cross-flow fan 220 is disposed at the second through-hole 240 and located in the cavity 220. The back surface 213 of the flow divider 210 is the appearance surface of the air conditioner indoor unit, and the second cross-flow fan 220 is disposed in the cavity 220, which not only enables the second cross-flow fan 220 to promote the airflow in the cavity 220 to blow out in the direction towards the side of the second air duct 150, but also can shield the second cross-flow fan 220 in appearance, so that the appearance of the air conditioner indoor unit is more beautiful, thereby improving the user experience.

[0062] In some embodiments, as Figure 4 As shown, the second through-hole 240 includes a first side wall 241 and a second side wall 244 spaced apart, and the second cross-flow fan 220 is located between the first side wall 241 and the second side wall 244.

[0063] The first side wall 241 includes a first end 242 and a second end 243, the first end 242 is closer to the first through-hole 230 relative to the second end 243, and the first end 242 is farther away from the second air duct 150 relative to the second end 243. The second side wall 244 includes a third end 245 and a fourth end 246, the third end 245 is closer to the first through-hole 230 relative to the fourth end 246, and the third end 245 is farther away from the second air duct 150 relative to the fourth end 246. That is, the first side wall 241 and the second side wall 244 are inclined to the side closer to the second air duct 150. Thus, through the cooperation of the first side wall 241, the second side wall 244 and the second cross-flow fan 220, the airflow sucked into the cavity 220 can be more smooth, and is inclined to blow out of the cavity 220 in the direction towards the side of the second air duct 150.

[0064] Optionally, the first side wall 241 and the second side wall 244 are both curved surfaces recessed towards the first air duct 140. Thus, the first side wall 241 and the second side wall 244 adapt to the external contour of the second cross-flow fan 220, and reduce the energy loss when the airflow passes through the gap between the first side wall 241, the second side wall 244 and the second cross-flow fan 220.

[0065] In some embodiments, as Figure 4 As shown, the spacing distance between the second cross-flow fan 220 and the first side wall 241 is greater than the spacing distance between the second cross-flow fan 220 and the second side wall 244. That is, the second cross-flow fan 220 is closer to the second side wall 244 relative to the first side wall 241, thereby increasing the spacing distance between the second cross-flow fan 220 and the first side wall 241, so that more airflow can be more smooth and inclined to blow out of the cavity 220 in the direction towards the side of the second air duct 150.

[0066] In some embodiments, as Figure 6As shown, the first air duct 140 is provided with a rotatable first air deflector 610, by swinging the first air deflector 610, the inclination direction of the air deflector is changed, and the air outlet direction of the first air duct 140 is adjusted. The first air duct 140 is provided with a rotatable second air deflector 620, by swinging the second air deflector 620, the inclination direction of the air deflector is changed, and the air outlet direction of the second air duct 150 is adjusted.

[0067] Optionally, the included angle between the first windward surface 211 and the second windward surface 212 on the cross section perpendicular to the rotation axis of the second cross-flow fan 220 is 45°-60°. Optionally, the included angle between the first windward surface 211 and the second windward surface 212 on the cross section perpendicular to the rotation axis of the second cross-flow fan 220 is 47°-56°. Optionally, the included angle between the first windward surface 211 and the second windward surface 212 on the cross section perpendicular to the rotation axis of the second cross-flow fan 220 is 50°-54°. On the one hand, a certain included angle is formed between the first air duct 140 and the second air duct 150, thereby expanding the air supply range of the air conditioner indoor unit; on the other hand, the included angle between the first windward surface 211 and the second windward surface 212 is prevented from being too large, thereby preventing the flow splitter 210 from generating a large resistance to the airflow, so that the air volume of the air outlet of the first air duct 140 and the second air duct 150 is large.

[0068] Optionally, the included angle between the first windward surface 211 and the second windward surface 212 includes but is not limited to 45°, 47°, 50°, 53°, 55°, 56°, 58°, 59° or 60°.

[0069] The air conditioner of the embodiment of the utility model comprises the air conditioner indoor unit in any one of the above embodiments.

[0070] In the embodiment, the air conditioner can be a floor standing type air conditioner, a wall-mounted air conditioner, an embedded air conditioner, etc. with one cross-flow fan.

[0071] The air conditioner indoor unit of the air conditioner of the embodiment of the utility model is provided with the flow splitter 210 at the downstream outlet of the air outlet duct 130, and the flow splitter 210 is provided with the flow guide channel 214 communicating with the first air duct 140. When the airflow flows through the first air duct 140 and the second air duct 150, the second cross-flow fan 220 can promote a part of the airflow in the first air duct 140 to enter the flow guide channel 214, and when the part of the airflow is blown out from the leeward surface 213 of the flow splitter 210, the part of the airflow is inclined to be blown out towards one side of the second air duct 150, thereby increasing the air volume blown into the room from one side of the second air duct 150, so that the air outlet volume of the air conditioner indoor unit of the embodiment of the utility model along the first air duct 140 and the air outlet volume along the first air duct 140 are more uniform.

[0072] Up to now, the person skilled in the art should recognize that, although the multiple exemplary embodiments of the utility model have been shown and described in detail herein, many other variants or modifications conforming to the principles of the utility model can still be directly determined or deduced according to the content disclosed by the utility model without departing from the spirit and scope of the utility model. Therefore, the scope of the utility model should be understood and recognized as covering all these other variants or modifications.

Claims

1. An air conditioner indoor unit characterized by comprising: The air conditioner indoor unit comprises: a wind channel assembly comprising a front tongue and a rear tongue, and defining an air outlet wind channel therebetween; a first cross-flow fan arranged upstream of the air outlet wind channel; a flow distribution assembly comprising a flow distribution member and a second cross-flow fan, the flow distribution member being arranged at a downstream outlet of the air outlet wind channel; the flow distribution member has a first windward surface corresponding to the front tongue and a second windward surface corresponding to the rear tongue, and a first wind channel is formed between the first windward surface and the front tongue, and a second wind channel is formed between the second windward surface and the rear tongue; the flow distribution member is provided with a flow guide channel, an air inlet of the flow guide channel penetrating through the first windward surface, and an air outlet of the flow guide channel penetrating through a leeward surface of the flow distribution member; the second cross-flow fan is arranged at the air outlet to cause air flow to enter the flow guide channel from the air inlet and to be blown obliquely towards the second wind channel from the air outlet.

2. The air conditioner indoor unit according to claim 1, wherein the first wind channel comprises a first section and a second section in the air outlet direction, the second section being located on the downstream side of the first section, and the first section and the second section are smoothly connected, and the air inlet is arranged on the first section; in a cross section perpendicular to the rotation axis of the second cross-flow fan, the width of the first section increases in the air outlet direction, and the width of the second section decreases in the air outlet direction.

3. The air conditioner indoor unit according to claim 2, wherein in a cross section perpendicular to the rotation axis of the second cross-flow fan, the minimum width of the first section is greater than the minimum width of the second section.

4. The air conditioner indoor unit according to claim 3, wherein in a cross section perpendicular to the rotation axis of the second cross-flow fan, the width of the second wind channel first decreases and then increases in the air outlet direction; and / or, the width of the inlet end of the second wind channel is smaller than the width of the inlet end of the first wind channel.

5. The air conditioner indoor unit according to claim 1, wherein the flow distribution member defines a chamber, a plurality of first through holes on the first windward surface of the flow distribution member are arranged to communicate with the chamber, the first through holes form the air inlet, and the first through holes are arranged to be spaced apart in the extension direction of the second cross-flow fan; at least one second through hole on the leeward surface of the flow distribution member is arranged to communicate with the chamber, the second through hole forms the air outlet; and the first through hole, the chamber and the second through hole form the flow guide channel.

6. The air conditioner indoor unit according to claim 5, wherein the second cross-flow fan is arranged at the second through hole, and the second cross-flow fan is located in the chamber.

7. The air conditioner indoor unit according to claim 5, wherein the second through hole comprises a first side wall and a second side wall which are spaced apart, and the second cross-flow fan is located between the first side wall and the second side wall. The first side wall comprises a first end and a second end, the first end is closer to the first through hole than the second end, and the first end is farther away from the second air duct than the second end; the second side wall comprises a third end and a fourth end, the third end is closer to the first through hole than the fourth end, and the third end is farther away from the second air duct than the fourth end. 8.The indoor unit of the air conditioner according to claim 7, wherein The distance between the second cross-flow fan and the first side wall is greater than the distance between the second cross-flow fan and the second side wall. 9.The indoor unit of the air conditioner according to claim 5, wherein In a cross section perpendicular to the rotation axis of the second cross-flow fan, the included angle between the first windward surface and the second windward surface is 45°-60°.

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

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