Air conditioner indoor unit with three air outlets

Abstract

The utility model provides an air conditioner indoor unit with three air outlets. The air conditioner indoor unit comprises a vertically-arranged shell, an air supply channel, a first side air channel and a second side air channel, wherein the air supply channel, the first side air channel and the second side air channel are arranged in the shell. The housing has a front wall, a first side wall, and a second side wall. A front air outlet is formed in the front wall. A first side air outlet is formed in the first side wall. The front wall of the first side air duct comprises a first arc surface and a second arc surface which are connected with each other, the edge of one end of the first arc surface is connected to the air supply channel, the first arc surface arches towards the rear wall of the first side air duct, and the second arc surface arches towards the direction deviating from the rear wall of the first side air duct. And a second side air outlet is formed in the second side wall. The front wall of the second side air duct comprises a third arc surface, the edge of one end of the third arc surface is connected to the air supply channel, and the third arc surface arches towards the rear wall of the second side air duct. And the first arc surface, the second arc surface and the third arc surface which are positioned on the first side air duct are favorable for guiding air flow to enter and flow.

Description

TECHNICAL FIELD

[0001] The utility model relates to air treatment technical field especially is related to a kind of indoor unit of air conditioner with three air outlets. BACKGROUND

[0002] Currently, in the case of the indoor unit of air conditioner using column type cabinet machine, the air outlet structure of indoor unit mostly uses the mode of single cross-flow fan cooperating single air outlet, that is, the heat exchange airflow sent by cross-flow fan from heat exchange air duct is blown to indoor space via single air outlet. This single air outlet air outlet structure can easily cause heat exchange air to directly blow to user, and the air supply angle is limited in a narrow area, etc., resulting in poor user experience, and even affecting the health of user. SUMMARY

[0003] In view of the above problems, the utility model is provided to provide an indoor unit of air conditioner with three air outlets to overcome the above problems or at least partially solve the above problems, which can solve the problem that the air outlet mode of the indoor unit of existing cabinet type air conditioner is restricted by single air outlet, expand the air outlet angle, and achieve the purpose of improving user experience.

[0004] Specifically, the utility model provides an indoor unit of air conditioner with three air outlets, which comprises a vertically arranged shell, and a supply air passage, a first side air duct and a second side air duct arranged in the shell; the shell has:

[0005] a front wall, the front wall is provided with a front air outlet extending in vertical direction, and the front air outlet is the outlet of the supply air passage;

[0006] a first side wall connected to the front wall, the first side wall is provided with a first side air outlet, and the first side air outlet is communicated with the supply air passage through the first side air duct; the front wall of the first side air duct comprises a first curved surface and a second curved surface connected to each other, one end of the first curved surface is connected to the supply air passage, the first curved surface is arched towards the rear wall of the first side air duct, and the second curved surface is arched away from the rear wall of the first side air duct;

[0007] a second side wall connected to the front wall, the second side wall is provided with a second side air outlet, and the second side air outlet is communicated with the supply air passage through the second side air duct; the front wall of the second side air duct comprises a third curved surface, one end of the third curved surface is connected to the supply air passage, and the third curved surface is arched towards the rear wall of the second side air duct.

[0008] Optionally, the front wall of the first side air duct further comprises a first inclined surface connected to the second curved surface, and the other end of the first inclined surface is connected to the front edge of the first side air outlet.

[0009] The front wall of the second side air duct further comprises a second inclined surface connected with the third arc surface, and the other end of the second inclined surface is connected with the front edge of the second side air outlet.

[0010] Optionally, the indoor unit of the air conditioner further comprises a cross-flow fan wheel arranged in the air supply channel.

[0011] The ratio between the radius of the first arc surface and the diameter of the cross-flow fan wheel is 1.01 to 1.06; the distance between the edges at both ends of the first arc surface is the first arc surface width, and the ratio between the first arc surface width and the diameter of the cross-flow fan wheel is 0.31 to 0.40.

[0012] The ratio between the radius of the second arc surface and the radius of the first arc surface is 0.87 to 0.91; the distance between the edges at both ends of the second arc surface is the second arc surface width, and the ratio between the second arc surface width and the first arc surface width is 0.27 to 0.41.

[0013] The ratio between the distance of the edges at both ends of the first inclined surface and the first arc surface width is 0.43 to 0.52.

[0014] Optionally, the ratio between the radius of the third arc surface and the diameter of the cross-flow fan wheel is 1.25 to 1.34, the distance between the edges at both ends of the third arc surface is the third arc surface width, and the ratio between the third arc surface width and the diameter of the cross-flow fan wheel is 0.15 to 0.20.

[0015] The ratio between the distance of the edges at both ends of the second inclined surface and the third arc surface width is 3.16 to 3.72.

[0016] Optionally, the front edge of the first side air outlet is a first connecting edge arranged on the front wall, and the front edge of the second side air outlet is a second connecting edge arranged on the front wall; one end of the first arc surface connected with the air supply channel is a first inlet edge, one end of the third arc surface connected with the air supply channel is a second inlet edge, the inlet end edge of the rear wall of the first side air duct is a third inlet edge, and the inlet end edge of the rear wall of the second side air duct is a fourth inlet edge.

[0017] The rear edge of the first side air outlet is obliquely in front of the third inlet edge, and the first connecting edge is obliquely in front of the first inlet edge; the first inlet edge is obliquely in front of the third inlet edge close to the first side wall.

[0018] The rear edge of the second side air outlet is obliquely in front of the fourth inlet edge, and the second connecting edge is obliquely in front of the second inlet edge; and the second inlet edge is in front of the fourth inlet edge.

[0019] Optionally, the rear wall of the first side air duct is a first air duct wall, and the first air duct wall is an inclined surface.

[0020] An included angle between the first air duct wall and a lateral side of a first reference surface is a first included angle, the first included angle is an acute angle; the first reference surface is a vertical plane extending in the lateral direction; an included angle between the first inclined surface and the lateral side of the first reference surface is a second included angle, the second included angle is an acute angle, the second included angle is greater than the first included angle; and the first included angle is less than 40°.

[0021] The rear wall of the second side air duct is a third air duct wall, and the third air duct wall is an inclined surface.

[0022] An included angle between the third air duct wall and a lateral side of the first reference surface is a third included angle, the third included angle is an acute angle; an included angle between the second inclined surface and the lateral side of the first reference surface is a fourth included angle, the fourth included angle is an acute angle, the fourth included angle is greater than the third included angle; and the third included angle is less than 40°.

[0023] Optionally, a ratio of a vertical distance between the first inlet edge and a second reference surface to a vertical distance between the second inlet edge and the second reference surface is 1.27 to 1.35; the second reference surface is a vertical plane extending in the front-rear direction and is located at a position in the middle of the inlet end edge of the rear wall of the first side air duct and the inlet end edge of the rear wall of the second side air duct in the lateral direction.

[0024] The vertical distance from the first inlet edge to the rear wall of the first side air duct is a first inlet distance, and the vertical distance from the second inlet edge to the rear wall of the second side air duct is a second inlet distance.

[0025] A ratio of the first inlet distance to the width of the first side air outlet is 0.65 to 0.91.

[0026] A ratio of the second inlet distance to the width of the second side air outlet is 0.72 to 0.93.

[0027] A ratio of the first inlet distance to the second inlet distance is 0.91 to 0.98.

[0028] Optionally, a ratio of the first inlet distance to a lateral distance from the third inlet edge to the fourth inlet edge is 0.24 to 0.27.

[0029] a ratio of a vertical distance from the third inlet edge to the second reference surface to a vertical distance from the first inlet edge to the second reference surface is 0.7 to 0.75;

[0030] a ratio of a vertical distance from the fourth inlet edge to the second reference surface to a vertical distance from the second inlet edge to the second reference surface is 0.98 to 1.02.

[0031] Optionally, the air conditioner indoor unit further comprises:

[0032] a volute and a volute tongue for defining the air supply passage, the first side wall being adjacent to the volute tongue, and the second side wall being adjacent to the volute;

[0033] the volute tongue comprises a first air duct section, a surface of the first air duct section for defining the air supply passage being a first arc surface in a concave shape, a front end of the first arc surface being connected with a rear wall of the first side air duct, the front end of the first arc surface being obliquely in front of a rear end of the first arc surface, and the rear end of the first arc surface being adjacent to the second reference surface;

[0034] the volute comprises a second air duct section, a surface of the second air duct section for defining the air supply passage being connected with a rear wall of the second side air duct through a second arc surface;

[0035] a front end of the second arc surface being obliquely in front of a rear end of the second arc surface, the rear end of the second arc surface being adjacent to the second reference surface, and a vertical distance between the rear end of the second arc surface and the second reference surface being greater than a minimum distance between the second arc surface and the second reference surface.

[0036] Optionally, the air conditioner indoor unit further comprises:

[0037] at least two main air deflector plates arranged at the front air outlet, the at least two main air deflector plates being arranged along a transverse direction of the front air outlet, and the main air deflector plates being rotatable to guide a flow direction of air at the front air outlet;

[0038] a plurality of vertical first grating bars arranged along a width direction of the first side air outlet, and an inclination angle of each of the first grating bars being different;

[0039] a plurality of vertical second grating bars arranged along a width direction of the second side air outlet, and an inclination angle of each of the second grating bars being different.

[0040] The utility model discloses an air conditioner indoor unit with three air outlets, airflow passes through the air supply channel, a part of airflow flows out from the front air outlet, a part of airflow flows out from the first side air outlet through the first side air duct, and the rest of airflow blows out from the second side air outlet through the second side air duct. The first side air outlet and the second side air outlet on the two sides of the shell can effectively increase the horizontal air supply angle. The front air outlet, the first side air outlet and the second side air outlet are oriented differently, which is also conducive to ensuring that the interference between the air outlets is small when the three air outlets blow air at the same time, and avoiding the lateral air outlet being deflected towards the central air outlet under the suction effect of the air outlet of the front wall of the front air outlet, which leads to a decrease in the air outlet included angle. Further, the first arc surface and the second arc surface in the first side air duct and the third arc surface in the second side air duct are conducive to guiding the entry and flow of airflow.

[0041] The above and other objects, advantages and features of the present utility model will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0042] Some embodiments of the present utility model will be described in detail hereinafter with reference to the accompanying drawings, which are given by way of illustration only and thus are not limitative of the present utility model. Identical reference signs refer to identical or similar components or parts throughout the drawings. It should be understood by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

[0043] Figure 1 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present utility model;

[0044] Figure 2 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present utility model;

[0045] Figure 3 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present utility model;

[0046] Figure 4 is Figure 3 is an enlarged view of A in Fig. 4;

[0047] Figure 5 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0048] Reference will now be made to the following detailed description of some embodiments of the present utility model, which are illustrated in the accompanying drawings. Figures 1 to 5The indoor unit of the air conditioner with three air outlets is described in the embodiments of the present application. In the description of the embodiments, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first" and "second" can explicitly or implicitly include at least one of the features, that is, one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features.

[0049] Unless otherwise expressly specified and limited, the terms "set", "mount", "connected", "connected", "fixed", "coupled" and other terms should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0050] In addition, in the description of the embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the embodiments, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is less than the second feature in horizontal height.

[0051] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0052] Figure 1is a schematic structural view of the air conditioner indoor unit according to an embodiment of the present application, as shown in Figure 1 and referring to Figures 2 to 5 The embodiment of the present application provides a kind of air conditioner indoor unit with three air outlets, including vertically arranged shell 100, and the air supply passage 200, first side air duct 300 and second side air duct 400 arranged in shell 100.For wall 110 of shell 100, first side wall 120 and second side wall 130.For wall 110, front air outlet 140 extending along vertical direction is opened, and front air outlet 140 is the outlet of air supply passage 200.First side wall 120 is connected to one side of front wall 110, and first side wall 120 is provided with first side air outlet 150.First side air outlet 150 is communicated with air supply passage 200 by first side air duct 300.The front wall of first side air duct includes first curved surface 341 and second curved surface 342 connected to each other, and the edge of one end of first curved surface 341 is connected to air supply passage, first curved surface 341 is arched to the direction of rear wall of first side air duct, and second curved surface 342 is arched to the direction away from the rear wall of first side air duct.Second side wall 130 is connected to the other side of front wall 110.Second side wall 130 is provided with second side air outlet 160.Second side air outlet 160 is communicated with air supply passage 200 by second side air duct 400.The front wall of second side air duct includes third curved surface 441, and the edge of one end of third curved surface 441 is connected to air supply passage, and third curved surface 441 is arched to the direction of rear wall of second side air duct.

[0053] In the air conditioner indoor unit of the embodiment of the present application, airflow passes through air supply passage 200, part of airflow flows out from front air outlet 140, part of airflow flows out from first side air outlet 150 through first side air duct 300, and the remaining part of airflow blows out from second side air outlet 160 through second side air duct 400.First side air outlet 150 and second side air outlet 160 on both sides of shell 100 can effectively increase the horizontal air supply angle.Front air outlet 140, first side air outlet 150 and second side air outlet 160 are oriented differently, which is also beneficial to ensure that the interference between air outlets is small when three air outlets blow air at the same time, and avoid the lateral air outlet deviating to the central air outlet under the suction effect of the air outlet of front wall 110, resulting in the situation that the air outlet included angle decreases.Further, first curved surface 341 and second curved surface 342 of first side air duct and third curved surface 441 of second side air duct are beneficial to guide the entry and flow of airflow.

[0054] In some embodiments of the present application, as Figures 1 to 5As shown, the indoor unit of the air conditioner further comprises a volute 500, a volute tongue 600 and a cross-flow fan wheel 700 for defining the air supply passage 200. The first side wall 120 is adjacent to the volute tongue 600, and the second side wall 130 is adjacent to the volute 500. The cross-flow fan wheel 700 is arranged in the air supply passage 200. The volute tongue 600 comprises a first air duct section, and a surface of the first air duct section for defining the air supply passage 200 is a first arc surface 610 in a concave shape, a front end of the first arc surface 610 is connected with a rear wall of the first side air duct 300. The front end of the first arc surface 610 is obliquely in front of a rear end of the first arc surface 610, and the rear end of the first arc surface 610 is adjacent to a second reference surface. The second reference surface is a vertical plane extending along the front-rear direction, and is located at a position in the middle of the inlet end edge of the rear wall of the first side air duct 300 and the inlet end edge of the rear wall of the second side air duct 400 in the transverse direction. The volute 500 comprises a second air duct section 510, and a surface of the second air duct section 510 for defining the air supply passage 200 is connected with the rear wall of the second side air duct 400 through a second arc surface 520. A front end of the second arc surface 520 is obliquely in front of a rear end of the second arc surface 520, the rear end of the second arc surface 520 is adjacent to the second reference surface, and a vertical distance between the rear end of the second arc surface 520 and the second reference surface is greater than a minimum distance between the second arc surface 520 and the second reference surface.

[0055] Most of the air blown out of the cross-flow fan wheel 700 will be deflected towards the volute 500, and the arrangement of the first arc surface 610 and the second air duct section 510 makes a part of the air flow close to the volute 500 blow towards the first arc surface 610 and then blow out forward, which is beneficial to the uniformity of the air outflow in the entire air supply passage 200.

[0056] Further, in some embodiments of the present application, as shown in Figure 1 and Figure 2 The ratio between the radius R2 of the first arc surface 610 and the diameter of the cross-flow fan wheel 700 is 0.63 to 0.71, and the central angle of the first arc surface 610 is 40° to 50°.

[0057] In some embodiments of the present application, the radius R1 of the second arc surface is greater than 4 mm and less than 20 mm, the ratio between the radius of the second arc surface and the radius of the first arc section is 0.2 to 0.25, and the central angle of the second arc surface is 100° to 110°. The above-mentioned limitation of the second arc surface can make the flow resistance of the air flow entering the second side air duct 400 through the air supply passage 200 smaller.

[0058] In some embodiments of the utility model, the upper edge of the front air outlet 140, the upper edge of the first side air outlet 150 and the upper edge of the second side air outlet 160 are flush. The lower edge of the front air outlet 140, the lower edge of the first side air outlet 150 and the lower edge of the second side air outlet 160 are flush. This arrangement makes the appearance of the air conditioner indoor unit regular.

[0059] In some embodiments of the utility model, the upper edge of the front air outlet 140, the upper edge of the first side air outlet 150 and the upper edge of the second side air outlet 160 are flush. The lower edge of the front air outlet 140, the lower edge of the first side air outlet 150 and the lower edge of the second side air outlet 160 are flush. The ratio between the width W2 of the front air outlet 140 and the diameter of the cross-flow fan wheel 700 is 1.29 to 1.42, which ensures the air volume of the front air outlet 140.

[0060] In some embodiments of the utility model, as shown in Figure 2 The width W1 of the first side air outlet 150 is equal to the width of the second side air outlet 160, which makes the appearance of the air conditioner indoor unit consistent and more beautiful.

[0061] In some embodiments of the utility model, as shown in Figures 1 to 5 The front edge of the first side air outlet is a first connecting edge 151, which is arranged on the front wall. The front edge of the second side air outlet 160 is a second connecting edge 161, which is arranged on the front wall. Since the first side air outlet 150 and the second side air outlet 160 are adjacent to the front wall 110, it is not only convenient to realize a compact air duct layout inside the air conditioner indoor unit, significantly reducing the thickness of the multi-air-outlet air conditioner indoor unit in the front-rear direction, but also convenient to set the air duct of the first side air outlet 150 and the second side air outlet 160, which can blow a certain forward component airflow, so that the airflow blown from the first side air outlet 150 and the second side air outlet 160 has a certain forward movement speed component, and the airflow blown from the first side air outlet 150 and the second side air outlet 160 moves to the side-front direction, which is better for blowing around the user's area from the side, rather than directly blowing to the user.

[0062] In some embodiments of the utility model, as shown in Figures 1 to 5As shown, the first arc surface 341 is connected to the first inlet edge 330 at one end of the air supply channel, and the inlet end edge of the rear wall of the first side air duct is the third inlet edge 320. The rear edge of the first side air outlet 150 is obliquely forward of the third inlet edge 320. The first connecting edge 151 is obliquely forward of the first inlet edge 330. The first inlet edge 330 is obliquely forward of the third inlet edge 320 close to the first side wall. The first inlet edge 330 is obliquely forward of the third inlet edge 320 close to the first side wall. That is, the first side air duct 300 is inclined obliquely forward from back to front, and is more conducive to the entry of the airflow through the air supply channel 200.

[0063] In some embodiments of the utility model, as shown in Figures 1 to 5 As shown, the third arc surface 441 is connected to the second inlet edge 430 at one end of the air supply channel, and the inlet end edge of the rear wall of the second side air duct is the fourth inlet edge 420. The rear edge of the second side air outlet is obliquely forward of the fourth inlet edge 420, and the second connecting edge 161 is obliquely forward of the second inlet edge 430. The second inlet edge 430 is forward of the fourth inlet edge 420. That is, the second side air duct 400 is inclined obliquely forward from back to front, and is more conducive to the entry of the airflow through the air supply channel 200.

[0064] In some embodiments of the utility model, as shown in Figures 1 to 5 As shown, the ratio of the distance W4 between the first inlet edge 330 and the second reference surface to the distance W3 between the second inlet edge 430 and the second reference surface is 1.27 to 1.35. That is, the distance W4 between the first inlet edge 330 and the second reference surface is greater than the distance W3 between the second inlet edge 430 and the second reference surface. Since the airflow from the cross-flow fan is more concentrated on one side of the volute 500, this arrangement can make the amount of airflow entering the first side air duct 300 and the second side air duct 400 of the air supply channel 200 not differ much, thereby ensuring that the airflow amounts of the first side air outlet 150 and the second side air outlet 160 do not differ much, and ensuring that the air outlets on both sides of the shell 100 are uniform.

[0065] In some embodiments of the utility model, as shown in Figures 1 to 5 As shown, the front wall of the first side air duct further comprises a first inclined surface 343 connected to the second arc surface 342, and the other end of the first inclined surface 343 is connected to the first connecting edge 151. The front wall of the second side air duct further comprises a second inclined surface 442 connected to the third arc surface 441, and the other end of the second inclined surface 442 is connected to the second connecting edge 161.

[0066] In some embodiments of the utility model, as shown in Figure 2As shown, the ratio between the radius R4 of the first arc surface 341 and the diameter of the cross-flow fan is 1.01 to 1.06. Along the direction of the airflow, the distance between the edges of the two ends of the first arc surface 341 is the first arc surface width L3, and the ratio between the first arc surface width L3 and the diameter of the cross-flow fan is 0.31 to 0.40. The ratio between the radius R5 of the second arc surface 342 and the radius R4 of the first arc surface 341 is 0.87 to 0.91. The distance between the edges of the two ends of the second arc surface 342 is the second arc surface 342 width L4, and the ratio between the second arc surface 342 width L4 and the first arc surface width L3 is 0.27 to 0.41. The ratio between the distance L5 of the two end edges of the first inclined surface 343 and the first arc surface width L3 is 0.43 to 0.52. That is, the first arc surface width is greater than the second arc surface 342 width and the first inclined surface 343, and such a setting is more conducive to the introduction and flow of the airflow.

[0067] In some embodiments of the present application, as shown in Figure 2 As shown, the ratio between the radius R3 of the third arc surface 441 and the diameter of the cross-flow fan is 1.25 to 1.34. Along the direction of the airflow, the distance between the edges of the two ends of the third arc surface 441 is the third arc surface width L1, and the ratio between the third arc surface width L1 and the diameter of the cross-flow fan is 0.15 to 0.20. The ratio between the distance L2 of the two end edges of the second inclined surface 442 and the third arc surface width L1 is 3.16 to 3.72. That is, the second inclined surface 442 is much larger than the third arc surface 441, and the third arc surface 441 mainly plays a role in guiding the airflow to enter.

[0068] In some embodiments of the present application, as shown in Figure 3 As shown, the rear wall of the first side air duct 300 is a first air duct wall 310, and the first air duct wall 310 is an inclined surface. The included angle between the first air duct wall 310 and the lateral side of the first reference surface is a first included angle, and the first included angle is an acute angle with a degree of b. The first reference surface is a vertical plane perpendicular to the second reference surface. The included angle between the first inclined surface 343 and the lateral side of the first reference surface is a second included angle, and the second included angle is an acute angle with a degree of c, and c is greater than b. That is, along the flow direction of the airflow, at least a part of the first side air duct 300 is gradually widened, so that the first side air duct has a pressure expansion section, the static pressure of the airflow is improved, which is conducive to improving the wind speed of the first side air duct 300, so that the airflow blown out of the first side air outlet 150 can be blown forward to a farther distance, and users farther away from the air conditioner indoor unit can be taken care of.

[0069] In some embodiments of the present application, preferably, the first included angle b is less than 40°.

[0070] In some embodiments of the present application, as shown in Figure 3As shown, the rear wall of the second side air duct 400 is a third air duct wall 410, and the third air duct wall 410 is a slope. The third air duct wall 410 and the lateral side of the first reference surface form a third included angle a, and the third included angle is an acute angle with a degree of a. The second slope 442 and the lateral side of the first reference surface form a fourth included angle, and the fourth included angle is an acute angle with a degree of d, and d is greater than a. That is, along the flow direction of the airflow, the second side air duct 400 is at least mostly gradually widened, so that the second side air duct 400 is a diffuser section, the static pressure of the airflow is improved, and the wind speed of the second side air duct 400 is improved, so that the airflow blown out of the second side air outlet 160 blows forward for a farther distance, and users farther away from the air conditioner indoor unit can be taken care of.

[0071] In some embodiments of the present application, preferably, a is less than 40°.

[0072] In some embodiments of the present application, as shown, Figures 1 to 5 The distance from the first inlet edge 330 to the first air duct wall 310 is a first inlet distance W6, and the distance from the second inlet edge 430 to the third air duct wall 410 is a second inlet distance W7. The ratio of the first inlet distance to the first side air outlet 150 is 0.65 to 0.91. The ratio of the second inlet distance to the second side air outlet 160 is 0.72 to 0.93. This arrangement makes the first side air outlet and the second side air outlet both diffuser sections, which is beneficial to improve the airflow speed through the first side air outlet and the second side air outlet.

[0073] In some embodiments of the present application, as shown, Figures 1 to 5 The ratio of the first inlet distance W6 to the distance W5 from the third inlet edge 320 to the fourth inlet edge 420 is 0.24 to 0.27. The ratio of the first inlet distance W6 to the second inlet distance W7 is 0.91 to 0.98. As known from the previous embodiments, the first side air duct 300 is easier to intake air, so the inlet of the first side air duct 300 can be slightly smaller than the inlet of the second side air duct 400 to ensure uniform air intake of the first side air duct 300 and the second side air duct 400.

[0074] In some embodiments of the present application, the ratio of the distance from the third inlet edge 320 to the second reference surface to the distance from the first inlet edge 330 to the second reference surface is 0.7 to 0.75. The ratio of the distance from the fourth inlet edge 420 to the second reference surface to the distance from the second inlet edge 430 to the second reference surface is 0.98 to 1.02.

[0075] In some embodiments of the present application, at least two main air guide plates 800 are arranged at the front air outlet 140, the at least two main air guide plates 800 are arranged along the lateral direction of the front air outlet 140, and the two main air guide plates 800 are rotated to guide the airflow direction of the corresponding air outlet area.

[0076] In some embodiments of the present application, as shown in Figure 3 the front air outlet is closed, and the airflow is blown out from the first side air outlet and the second side air outlet. As shown in Figure 1 the front air outlet, the airflow is blown forward from the front air outlet. As shown in Figure 5 the front air outlet, most of the airflow is blown obliquely forward towards the first side air outlet, and a part of the airflow is blown horizontally from the first side air outlet, and the remaining part of the airflow is blown horizontally from the second side air outlet. As shown in Figure 2 the front air outlet, most of the airflow is blown obliquely forward towards the second side air outlet, and a part of the airflow is blown horizontally from the first side air outlet, and the remaining part of the airflow is blown horizontally from the second side air outlet.

[0077] In some embodiments of the present application, as shown in Figure 3 the indoor unit of the air conditioner further comprises a plurality of vertical first grid bars, which are arranged in the width direction of the first side air outlet, and the inclination angles of each of the first grid bars are different. From back to front, the included angles between the plurality of first grid bars 910 and the first air duct wall 310 gradually increase, and the first grid bar 910 is parallel to the first air duct wall 310, and the last first grid bar 910 is parallel to the first inclined surface 343.

[0078] The first included angle of the first air duct wall 310 on the rear side is smaller, and the second included angle of the first inclined surface 343 on the front side is larger, and the included angles between the plurality of first grid bars 910 and the first air duct wall gradually increase from back to front, so that the side surface of the first grid bar 910 is substantially consistent with the movement direction of the airflow, thereby reducing the resistance of the first grid bar 910 to the airflow.

[0079] Further, in some embodiments of the present application, as shown in Figure 3 the included angles between each adjacent two first grid bars 910 and the first air duct wall are first included angle differences, and the first included angle differences are equal. The first included angle difference is equal to the ratio of the difference between the second included angle and the first included angle to the number of intervals between the adjacent two first grid bars. An interval is formed between each two adjacent first grid bars, and the number of intervals is equal to the number of first grid bars minus 1.

[0080] In some embodiments of the present application, as shown in Figure 3 and Figure 4 the ratio of the distance between each adjacent two first grid bars 910 to the width of the first side air outlet is 0.05 to 0.07. Alternatively, the ratio of the interval width of one side or both sides of each first grid bar 910 to the width of the first grid bar 910 is between 1 and 2.5.

[0081] In some embodiments of the utility model, such as Figure 3 And Figure 4 As shown in the figure, the air conditioner indoor unit further comprises a plurality of vertical second grid bars, which are arranged along the width direction of the second side air outlet, and the inclination angles of each second grid bar are different. From back to front, the included angles between the plurality of second grid bars 920 and the third air duct wall 410 gradually increase, and the first second grid bar 920 is parallel to the third air duct wall, and the last second grid bar 920 is parallel to the second inclined surface.

[0082] The third included angle of the third air duct wall at the rear side is smaller, and the fourth included angle of the second inclined surface at the front side is larger, so that the included angles between the plurality of second grid bars 920 and the third air duct wall gradually increase from back to front, so that the side surface of the second grid bar 920 is basically consistent with the movement direction of the airflow, thereby reducing the resistance of the plurality of second grid bars 920 to the airflow passing through the second grid bar 920.

[0083] In some embodiments of the utility model, such as Figure 2 As shown in the figure, the difference value of the included angle between each adjacent two second grid bars 920 and the third air duct wall is a second included angle difference value, and the second included angle difference value is equal. The second included angle difference value is equal to the ratio of the difference value of the fourth included angle and the third included angle to the number of intervals between adjacent two second grid bars.

[0084] Taking the difference value of the fourth included angle and the third included angle as 20° and the number of the plurality of second grid bars 920 as 9 as an example, the number of intervals between adjacent two second grid bars is 8, then the second included angle difference value is 2.5°, and the included angle between the rear second grid bar and the third air duct wall is increased by 2.5° than the included angle between the front second grid bar and the third air duct wall. Of course, it can also be calculated by the included angle of each second grid bar 920 and the first reference surface. As shown in Figure 2 And 3 Taking the number of the plurality of second grid bars 920 as 9, the fourth included angle as d and the third included angle as a as an example. In this way, the included angle of the first second grid bar 920 and the first reference surface is e1, e1 is equal to a, the included angle of the last second grid bar 920 and the first reference surface is e9, e9 is equal to d. The included angle of the second second grid bar 920 and the first reference surface is The inclination angle of the eighth second grid bar 920 is That is to say, if the number of the plurality of second grid bars 920 is N, then the included angle of the i-th second grid bar 920 and the first reference surface is

[0085] In some embodiments of the utility model, such as Figure 3 And Figure 4As shown, the ratio of the distance between each two adjacent second grid bars 920 to the second side air outlet width is 0.05 to 0.07. Or, the ratio of the interval width H2 of each second grid bar 920 on both sides or one side to the width H1 of the second grid bar is between 1 to 2.5.

[0086] At this point, those skilled in the art should recognize that although the present application has been fully illustrated and described herein with a plurality of exemplary embodiments, many other variations or modifications in accordance with the principles of the present application can be directly determined or deduced from the disclosure of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner with three air outlets, characterized in that, It includes a vertically arranged housing, and an air supply channel, a first side air duct, and a second side air duct disposed within the housing; the housing has: The front wall has a front air outlet extending vertically, which is the outlet of the air supply channel; A first sidewall is connected to the front wall, and a first side air outlet is provided on the first sidewall. The first side air outlet is connected to the air supply channel through the first side air duct. The front wall of the first side air duct includes a first arc surface and a second arc surface that are connected to each other. One edge of the first arc surface is connected to the air supply channel. The first arc surface arches towards the rear wall of the first side air duct, and the second arc surface arches towards the rear wall away from the first side air duct. The second side wall is connected to the front wall. A second side air outlet is provided on the second side wall. The second side air outlet is connected to the air supply channel through the second side air duct. The front wall of the second side air duct includes a third arc surface. One edge of the third arc surface is connected to the air supply channel. The third arc surface arches towards the rear wall of the second side air duct.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The front wall of the first side air duct also includes a first inclined surface connected to the second arc surface, and the other end of the first inclined surface is connected to the front edge of the first side air outlet. The front wall of the second side air duct also includes a second inclined surface connected to the third arc surface, and the other end of the second inclined surface is connected to the front edge of the second side air outlet.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, It also includes a cross-flow fan, which is disposed within the air supply channel; The ratio between the radius of the first arc surface and the diameter of the cross-flow impeller is 1.01 to 1.06; the distance between the edges of the two ends of the first arc surface is the width of the first arc surface, and the ratio between the width of the first arc surface and the diameter of the cross-flow impeller is 0.31 to 0.

40. The ratio between the radius of the second arc surface and the radius of the first arc surface is 0.87 to 0.91; the distance between the edges of the two ends of the second arc surface is the width of the second arc surface, and the ratio between the width of the second arc surface and the width of the first arc surface is 0.27 to 0.

41. The ratio of the distance between the two ends of the first inclined plane to the width of the first arc surface is 0.43 to 0.

52.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, It also includes a cross-flow fan, which is disposed within the air supply channel; The ratio between the radius of the third arc surface and the diameter of the cross-flow impeller is 1.25 to 1.34, the distance between the edges of the two ends of the third arc surface is the width of the third arc surface, and the ratio between the width of the third arc surface and the diameter of the cross-flow impeller is 0.15 to 0.

20. The ratio of the distance between the two ends of the second inclined plane to the width of the third arc surface is 3.16 to 3.

72.

5. The indoor unit of the air conditioner according to claim 2, characterized in that, The front edge of the first side air outlet is the first connecting edge, which is disposed on the front wall; the front edge of the second side air outlet is the second connecting edge, which is disposed on the front wall; the first arc surface connected to one end of the air supply channel is the first inlet edge; the third arc surface connected to one end of the air supply channel is the second inlet edge; the inlet edge of the rear wall of the first side air duct is the third inlet edge; and the inlet edge of the rear wall of the second side air duct is the fourth inlet edge. The rear edge of the first side air outlet is located diagonally in front of the third inlet edge, and the first connecting edge is located diagonally in front of the first inlet edge; the first inlet edge is located diagonally in front of the third inlet edge near the first sidewall. The rear edge of the second side air outlet is located diagonally in front of the fourth inlet edge, and the second connecting edge is located diagonally in front of the second inlet edge; the second inlet edge is located in front of the fourth inlet edge.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The rear wall of the first side air duct is the first air duct wall, and the first air duct wall is an inclined surface; The angle between the first duct wall and the first reference surface on the lateral side is the first included angle, which is an acute angle; the first reference surface is a vertical plane extending laterally; the angle between the first inclined surface and the first reference surface on the lateral side is the second included angle, which is an acute angle and is greater than the first included angle; the first included angle is less than 40°. The rear wall of the second side air duct is the third air duct wall, and the third air duct wall is an inclined surface; The angle between the third duct wall and the first reference surface on the lateral side is the third included angle, which is an acute angle. The angle between the second inclined surface and the first reference surface on the lateral side is the fourth included angle, which is an acute angle. The fourth included angle is greater than the third included angle. The third included angle is less than 40°.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The ratio of the vertical distance between the first inlet edge and the second reference surface to the vertical distance between the second inlet edge and the second reference surface is 1.27 to 1.35; the second reference surface is a vertical plane extending forward and backward, and is located at the midpoint between the inlet end edge of the rear wall of the first side air duct and the inlet end edge of the rear wall of the second side air duct in the transverse direction. The vertical distance from the first inlet edge to the rear wall of the first side air duct is the first inlet distance, and the vertical distance from the second inlet edge to the rear wall of the second side air duct is the second inlet distance; The ratio of the first inlet distance to the width of the first side outlet is 0.65 to 0.91; The ratio of the second inlet distance to the width of the second side outlet is 0.72 to 0.93; The ratio of the first inlet distance to the second inlet distance is 0.91 to 0.

98.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The ratio of the first inlet distance to the lateral distance from the third inlet edge to the fourth inlet edge is 0.24 to 0.27; The ratio of the vertical distance from the third inlet edge to the second reference surface to the vertical distance from the first inlet edge to the second reference surface is 0.7 to 0.75; The ratio of the vertical distance from the fourth inlet edge to the second reference surface to the vertical distance from the second inlet edge to the second reference surface is 0.98 to 1.

02.

9. The indoor unit of the air conditioner according to claim 7, characterized in that, Also includes: A volute and a volute tongue for defining the air supply channel, wherein the first sidewall is adjacent to the volute tongue and the second sidewall is adjacent to the volute; The volute tongue includes a first air duct section, the surface of the first air duct section for defining the air supply channel is a concave first arc-shaped surface, the front end of the first arc-shaped surface is connected to the rear wall of the first side air duct; the front end of the first arc-shaped surface is located obliquely in front of the rear end of the first arc-shaped surface, and the rear end of the first arc-shaped surface is adjacent to the second reference surface. The volute includes a second air duct section, the surface of which defines the air supply channel is connected to the rear wall of the second side air duct via a second arcuate surface. The front end of the second arc-shaped surface is located diagonally in front of the rear end of the second arc-shaped surface, the rear end of the second arc-shaped surface is adjacent to the second reference surface, and the vertical distance between the rear end of the second arc-shaped surface and the second reference surface is greater than the minimum distance between the second arc-shaped surface and the second reference surface.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: At least two main air vanes are disposed at the front air outlet, and the at least two main air vanes are arranged laterally along the front air outlet. The main air vanes rotate to guide the airflow direction of the front air outlet. Multiple vertical first grille strips are spaced apart along the width direction of the first side air outlet, and the tilt angle of each first grille strip is different; Multiple vertical second grille strips are spaced apart along the width of the second side air outlet, and each second grille strip has a different tilt angle.

Images