Air conditioner air duct structure and air conditioner having the same

Abstract

The present invention discloses an air duct structure of an air conditioner and an air conditioner having the same, wherein the air duct structure of the air conditioner comprises: a fan bracket, a first wind wheel assembly and a second wind wheel assembly. A first fan mounting hole and a second fan mounting hole are formed on the fan bracket. The first wind wheel assembly comprises a first wind wheel mounted at the first fan mounting hole, and a mixing air chamber is formed on the fan bracket at the air outlet side of the first wind wheel. The second wind wheel assembly comprises a second wind wheel mounted at the second fan mounting hole, the air inlet direction of the second wind wheel and the air outlet direction of the second wind wheel form an angle, the second wind wheel sends air in the direction of the first wind wheel, and when the first wind wheel and the second wind wheel work at the same time, the air outlet of the second wind wheel is mixed with the air outlet of the first wind wheel in the mixing air chamber. In the air duct structure of the air conditioner according to the embodiment of the present invention, the air outlet of the first wind wheel assembly and the second wind wheel assembly is mixed in the mixing air chamber before being sent out, and the air outlet feels comfortable and the air supply distance is long.

Description

Technical Field

[0001] The invention belongs to the technical field of air conditioners, and in particular to an air duct structure of an air conditioner and an air conditioner having the same. Background Art

[0002] The cabinet air conditioner includes a housing, a heat exchange component, an air duct component, an air outlet frame component, etc., wherein the air duct component is mainly used to guide the heat exchanged air to the air outlet and blow it out. However, the existing cabinet air conditioner cannot take into account the design of long air outlet distance and large air outlet width. When the air outlet distance is far enough, the wind is often not soft enough and the user experience is not good; when the air outlet width is large, it cannot form long-distance air supply and cannot meet the various needs of users. In addition, when the air conditioner is provided with an integral air duct, the air duct itself is large in size and occupies a large space inside the fuselage. The wind in the air duct far away from the fan is weakly driven by the fan. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an air duct structure of an air conditioner, wherein the air duct structure of the air conditioner is formed into a multi-duct structure, and the air output of multiple groups of wind wheel assemblies is mixed and then output, and the wind feeling is comfortable.

[0004] The present invention also aims to provide an air conditioner having the above-mentioned air duct structure of the air conditioner.

[0005] According to an embodiment of the present invention, an air duct structure of an air conditioner includes: a fan bracket, a first fan mounting hole and a second fan mounting hole are formed on the fan bracket; a first wind wheel assembly, the first wind wheel assembly includes a first wind wheel, the first wind wheel is installed at the first fan mounting hole, and an air mixing chamber is formed on the fan bracket at the air outlet side of the first wind wheel; a second wind wheel assembly, the second wind wheel assembly includes a second wind wheel, the second wind wheel is installed at the second fan mounting hole, the air inlet direction of the second wind wheel and the air outlet direction of the second wind wheel form an angle, the second wind wheel sends air in the direction of the first wind wheel, and when the first wind wheel and the second wind wheel work simultaneously, the air outlet of the second wind wheel and the air outlet of the first wind wheel are mixed and discharged in the air mixing chamber.

[0006] According to the air duct structure of the air conditioner of the embodiment of the present invention, the air from the first wind wheel assembly and the second wind wheel assembly is mixed in the air mixing chamber before being sent out, so that the wind feeling of the air is comfortable. The air inlet direction of the second wind wheel of the second wind wheel assembly forms a certain angle with the air outlet direction, so that the second wind wheel drives the wind on the air inlet side and changes the flow direction, and then blows toward the first wind wheel assembly. The wind at various places in the air duct can be driven and guided well, and then converged to the air mixing chamber for mixing and then sent out. When the first wind wheel assembly selects different types of fans, a variety of air outlet modes can be formed to meet a variety of air outlet needs.

[0007] According to the air duct structure of the air conditioner according to one embodiment of the present invention, the first wind wheel is an axial flow wind wheel or an oblique flow wind wheel, and the second wind wheel is a centrifugal wind wheel.

[0008] According to the air duct structure of an air conditioner according to one embodiment of the present invention, the first wind wheel assembly also includes: a first motor, the first motor drives the first wind wheel to rotate; an air guide ring, the air guide ring is arranged around the circumference of the first wind wheel, and at least a portion of the air mixing chamber is defined by the interior of the air guide ring.

[0009] Optionally, the air guide ring is formed in plurality, and the plurality of air guide rings are detachably connected in sequence along the axial direction, and the air mixing chamber is defined within the plurality of air guide rings.

[0010] Optionally, the air guide ring is spaced apart from an air outlet of the air conditioner, and the space between the air guide ring and the air outlet defines at least a portion of the air mixing chamber.

[0011] According to the air duct structure of an air conditioner according to one embodiment of the present invention, the second wind wheel assembly also includes: a second motor, the second motor drives the second wind wheel to rotate; a volute, the volute cover is arranged on the second wind wheel, the volute includes a volute air outlet, and the volute air outlet faces the air mixing chamber.

[0012] Advantageously, the fan bracket is provided with a wind gathering plate, and the wind gathering plate is arranged around the air guide ring.

[0013] Optionally, the axial length of the air guide ring is smaller than the length of the wind collecting plate, and at least a portion of the air mixing cavity is defined by a cavity formed by a portion of the wind collecting plate that is longer than the air guide ring.

[0014] Optionally, the wind gathering plate includes a first side plate and a second side plate, the first side plate and the second side plate are arranged on opposite sides of the first wind wheel assembly, a joint is defined between the first side plate and the second side plate, and the air outlet of the second wind wheel is sent into the cavity between the wind gathering plates through the joint.

[0015] Optionally, the wind gathering plate includes a third side plate, the third side plate is connected to one end of the first side plate and the second side plate, and the first side plate, the second side plate and the third side plate are enclosed in the circumference of the first wind wheel assembly.

[0016] Advantageously, the volute air outlet is connected to the joint, and the cavity between the wind gathering plate and the air guide ring defines a peripheral air outlet cavity.

[0017] According to an air duct structure of an air conditioner according to an embodiment of the present invention, a motor mounting frame is provided at the first fan mounting hole, and the motor mounting frame includes a motor mounting plate and a plurality of ribs, one end of the plurality of ribs is circumferentially connected to the motor mounting plate, and the other end of the plurality of ribs is connected to the fan bracket, and the first motor is arranged on the motor mounting plate.

[0018] Optionally, the first wind wheel assembly further includes a motor cover plate, and the motor cover plate is pressed onto the first motor.

[0019] An air conditioner according to an embodiment of the present invention includes: an air conditioner duct structure, which is the aforementioned air conditioner duct structure; a heat exchanger, which is formed on the air inlet side of the air conditioner duct structure, and a negative pressure chamber is formed between the heat exchanger and the air conditioner duct structure; and a panel, which is arranged on the air outlet side of the air conditioner duct structure, and an air outlet is arranged on the panel corresponding to the first wind wheel assembly.

[0020] According to the air conditioner of the embodiment of the present invention, after the air has been heat exchanged in the heat exchanger and enters the negative pressure chamber, it is mixed in the air mixing chamber under the drive and guidance of the air duct structure of the air conditioner, and finally the air is delivered to the outside from the air outlet corresponding to the first wind wheel assembly. The wind feeling is comfortable and the air supply mode is adjustable.

[0021] According to an air conditioner of an embodiment of the present invention, the air outlet is formed in a ring shape, and the outer edge of the air guide ring of the air duct structure of the air conditioner is connected to the air outlet.

[0022] Optionally, the panel is provided with a protrusion corresponding to the peripheral air outlet cavity of the air duct structure of the air conditioner.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the air duct structure of an air conditioner in one embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the air duct structure of the air conditioner in another angle in one embodiment of the present invention.

[0027] Figure 3 It is a rear structural schematic diagram of the air duct structure of an air conditioner in one embodiment of the present invention.

[0028] Figure 4 for Figure 3 Cross-sectional view along section AA.

[0029] Figure 5 The exploded structural diagram of the air duct structure of an air conditioner in one embodiment of the present invention.

[0030] Figure 6 It is a schematic diagram of the exploded structure of the air duct structure of the air conditioner in another embodiment of the present invention.

[0031] Figure 7 It is a schematic diagram of an air duct structure of an air conditioner with multiple air guide rings in one embodiment of the present invention.

[0032] Figure 8 It is a front view of an air conditioner in one embodiment of the present invention.

[0033] Fig. 9 It is a schematic diagram of the longitudinal cross-sectional structure of an air conditioner in one embodiment of the present invention.

[0034] Fig.10 Schematic diagram of the longitudinal cross-sectional structure of an air conditioner in another embodiment of the present invention.

[0035] Reference numerals:

[0036] Air conditioner air duct structure 100; air mixing chamber 101;

[0037] First wind wheel assembly 1; first wind wheel 11; first motor 12; air guide ring 13; air guide inlet 131; motor mounting frame 14; motor mounting plate 141; rib plate 142; motor cover plate 15;

[0038] Second wind wheel assembly 2; second wind wheel 21; second motor 22; volute 23; volute air outlet 231;

[0039] Fan bracket 3; first fan mounting hole 31; second fan mounting hole 32;

[0040] Wind collecting plate 4; first side plate 41; second side plate 42; third side plate 43; joint 44; peripheral air outlet cavity 45; air conditioner 1000;

[0041] Heat exchanger 200; negative pressure chamber 201; heat exchange air inlet 202;

[0042] Panel 300; Air outlet 301. DETAILED DESCRIPTION

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0044] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inside", "outside", "axial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] The air duct structure 100 of an air conditioner according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0046] According to an embodiment of the present invention, an air duct structure 100 of an air conditioner is Figure 1 As shown, it includes: a wind turbine support 3, a first wind wheel assembly 1 and a second wind wheel assembly 2.

[0047] Among them, Figure 2 As shown, a first fan mounting hole 31 and a second fan mounting hole 32 are formed on the fan bracket 3 .

[0048] like Figure 1 As shown, the first wind wheel assembly 1 includes a first wind wheel 11, as shown in Figure 2 As shown, the first wind wheel 11 is installed at the first fan installation hole 31, and the fan bracket 3 is formed with an air mixing chamber 101 on the air outlet side of the first wind wheel 11 (the structure of the air mixing chamber 101 is shown in FIG. Figure 4 shown).

[0049] like Figure 3 As shown, the second wind wheel assembly 2 includes a second wind wheel 21, and the second wind wheel 21 is installed at the second fan installation hole 32. Therefore, the front and rear sides of the first wind wheel 21 form a first wind duct, and the front and rear sides of the second wind wheel 21 form a second wind duct, forming a double wind duct structure.

[0050] like Figure 4 As shown, the air inlet direction of the second wind wheel 21 forms an angle with the air outlet direction of the second wind wheel 21. The angle here can be an acute angle, a right angle, or an obtuse angle.

[0051] like Figure 4As shown, the second wind wheel 21 sends air in the direction of the first wind wheel 11. When the first wind wheel 11 and the second wind wheel 21 work simultaneously, the air from the second wind wheel 21 is mixed with the air from the first wind wheel 11 in the air mixing chamber 101. That is, the first wind wheel 11 and the second wind wheel 21 use the same air outlet to discharge air.

[0052] It can be seen from the above structure that in the air duct structure 100 of the air conditioner in the embodiment of the present invention, the second wind wheel 21 sends air in the direction of the first wind wheel 11 and enters the air mixing chamber 101. The air mixing chamber 101 forms a certain buffer for the air outlet of the second wind wheel 21. The air outlet of the first wind wheel assembly 1 and the second wind wheel assembly 2 is mixed in the air mixing chamber 101 and then sent out, so that the wind outlet feels comfortable.

[0053] The wind inlet direction and the wind outlet direction of the second wind wheel 21 of the second wind wheel assembly 2 form a certain angle, so that the second wind wheel 21 drives the wind on the wind inlet side away from the first wind wheel 11 and changes the flow direction, and then blows it toward the first wind wheel assembly 1. Therefore, the wind at various places on the wind inlet side can be better driven and guided, and then converge into the air mixing chamber 101 for mixing and then sent out.

[0054] It can be understood that when the first wind wheel assembly 1 and the second wind wheel assembly 2 are installed far apart, the air inlet ends corresponding to the two groups of wind wheel assemblies are far apart, and the air inlet space connected to the air inlet side is larger, the first wind wheel assembly 1 has a weaker drive on the wind in the air inlet space away from the front side of the first wind wheel 11. At this time, the second wind wheel assembly 2 can drive the wind in this part of the air inlet space and guide it to the first wind wheel assembly 1. On the one hand, it speeds up the wind diversion and improves the circulation effect of the air duct structure 100 of the air conditioner on the air inlet and outlet; on the other hand, it effectively improves the mixed flow effect of the outlet air, so that the outlet air is concentrated and the wind feels uniform and comfortable.

[0055] In some examples, the center distance between the first wind wheel 11 and the second wind wheel 21 is between 350 mm and 800 mm, thereby ensuring that the wind on the wind inlet side can be driven well.

[0056] When the first wind wheel assembly 1 selects different types of fans, a variety of wind outlet modes can be formed to meet a variety of wind outlet requirements. Specifically, in some examples, when the first wind wheel 11 is an axial flow wind wheel and the second wind wheel 21 is a centrifugal wind wheel, the wind from the second wind wheel 21 quickly flows to the wind outlet side of the first wind wheel 11. Since the wind outlet intensity of the axial flow wind wheel is large and the wind outlet distance is far, the wind outlet of the axial flow wind wheel quickly drives the wind outlet of the centrifugal wind wheel to mix in the air mixing chamber 101. Therefore, when the two winds are blown out of the air outlet 301 of the air conditioner 1000, it not only has the effect of long-distance air supply (the air outlet in the middle has the longest air outlet distance), but also has a greater dispersion when the air is discharged, so that the air outlet and air supply range at the edge of the air outlet 301 is larger, and the wind feels comfortable. Optionally, the diameter of the axial flow wind wheel is between 150mm and 400mm. The diameter of the centrifugal wind wheel is between 250mm and 400mm.

[0057] In some examples, the first wind wheel 11 is a diagonal wind wheel, and the second wind wheel 21 is a centrifugal wind wheel. Similarly, the diagonal wind wheel blows the wind on its air inlet side to the air mixing chamber 101 at a certain centrifugal speed and axial speed, while the centrifugal wind wheel quickly throws the wind on its corresponding air inlet side into the air outlet side of the first wind wheel 11, and the two winds are superimposed and mixed in the air mixing chamber 101 to form a turbulent flow, and blown out to the air outlet 301 of the air conditioner 1000, which can also form an outlet with a certain air supply distance, and the wind feels comfortable and has a wide air supply range.

[0058] In some embodiments of the present invention, Figure 5 , Figure 6 As shown, the first wind wheel assembly 1 further includes: a first motor 12 and an air guide ring 13. The first motor 12 drives the first wind wheel 11 to rotate.

[0059] The air guide ring 13 is arranged around the circumference of the first wind wheel 11, and at least a part of the air mixing chamber 101 is defined by the inside of the air guide ring 13. That is, part of the space or the whole space defined in the air guide ring 13 forms at least a part of the air mixing chamber 101. When part of the space in the air guide ring 13 forms a part of the air mixing chamber 101, the outside of the air guide ring 13 also has a part of the air mixing chamber 101 for air mixing.

[0060] Optional, such as Figure 5 As shown, the air guide ring 13 is cylindrical.

[0061] Optional, such as Figure 7 As shown, the diameter of the air guiding ring 13 decreases in the direction away from the fan support 3 .

[0062] like Figure 7As shown, there are multiple air guide rings 13, and the multiple air guide rings 13 are detachably connected in sequence along the axial direction, and a mixed air chamber 101 is defined in the multiple air guide rings 13. That is, the mixed air chamber 101 is formed inside the air guide ring 13, and when the second wind wheel 21 sends air to the first wind wheel 11, the two winds are mixed inside the air guide ring 13 and sent outward along the direction in which the air guide ring 13 extends. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0063] Favorable, such as Figure 7 As shown, a plurality of air guide rings 13 are nested and an air guide inlet 131 is formed between adjacent air guide rings 13. The air outlet of the second wind wheel assembly 2 can enter the air mixing chamber 101 through the air guide inlet 131 and be mixed with the air outlet of the first wind wheel assembly 1 before being discharged.

[0064] Optional, such as Fig.10 As shown, the air guide ring 13 is spaced apart from the air outlet 301 of the air conditioner, and the space between the air guide ring 13 and the air outlet 301 defines at least a part of the air mixing chamber 101. In other words, the space between the air guide ring 13 and the air outlet 301 constitutes a complete air mixing chamber 101, or the space between the air guide ring 13 and the air outlet 301 only forms a part of the air mixing chamber 101.

[0065] Refer to Figure 6 As shown, a motor mounting frame 14 is provided at the first fan mounting hole 31, and the motor mounting frame 14 includes a motor mounting plate 141 and a plurality of ribs 142, one end of the plurality of ribs 142 is circumferentially connected to the motor mounting plate 141, and the other end of the plurality of ribs 142 is connected to the fan bracket 3, and the first motor 12 is provided on the motor mounting plate 141. The setting of the motor mounting plate 141 provides a relatively stable installation environment for the first motor 12, so that the first motor 12 works stably when driving the first wind wheel 11 to rotate. The plurality of ribs 142 stably connect the motor mounting plate 141 to the fan bracket 3, and the gaps between the ribs 142 enable the first wind wheel 11 to smoothly inhale the wind on the air inlet side.

[0066] Optional, such as Figure 6 As shown, the first wind wheel assembly 1 further includes a motor cover 15, which is pressed onto the first motor 12. The motor cover 15 limits the first motor 12 on the motor mounting plate 141 to prevent the first motor 12 from coming out. In addition, the motor cover 15 presses the first wind wheel 11 and the first motor 12 tightly, so that the motor shaft of the first motor 12 and the rotating shaft of the first wind wheel 11 are tightly connected.

[0067] In some embodiments of the present invention, Figure 5 and Figure 6As shown, the second wind wheel assembly 2 further includes: a second motor 22 and a volute 23 .

[0068] The second motor 22 drives the second wind wheel 21 to rotate.

[0069] The volute 23 is disposed on the second wind wheel 21. The space formed by the volute 23 covering the second wind wheel 21 is used to guide the wind from the second wind wheel 21 to the wind outlet side of the first wind wheel 11.

[0070] Specifically, the volute 23 includes a volute air outlet 231, and the volute air outlet 231 faces the air mixing chamber 101. The arrangement of the air outlet 231 allows the wind gathered and guided by the volute 23 to be concentrated and sent outward from the air outlet 231.

[0071] In some embodiments of the present invention, Figure 5 As shown, the fan bracket 3 is also provided with a wind gathering plate 4, which is arranged around the wind guide ring 13. That is, the wind gathering plate 4 is arranged in the circumference of the wind guide ring 13, and a certain gap is formed between at least part of the wind gathering plate 4 and the wind guide ring 13. The wind gathering plate 4 can increase the wind mixing area during wind mixing, and can also make the wind from the first wind wheel 11 and the wind sent from the second wind wheel 21 gather in the area surrounded by the wind gathering plate 4, thereby improving the wind mixing effect and the concentration of the wind.

[0072] Optional, such as Figure 5 As shown, the axial length of the air guide ring 13 is smaller than the length of the air collecting plate 4 in the front-to-back direction, and at least a part of the air mixing cavity 101 is defined by the cavity formed by the part of the air collecting plate 4 that is longer than the air guide ring 13. That is, the air guided and sent out by the air guide ring 13 is mixed with the air sent from the second wind wheel 21 at the part of the air collecting plate 4 close to the air outlet 301.

[0073] Optional, such as Figure 5 As shown, the wind collecting plate 4 includes a first side plate 41 and a second side plate 42, which are arranged on opposite sides of the first wind wheel assembly 1, and a joint 44 is defined between the first side plate 41 and the second side plate 42. The wind from the second wind wheel 21 is sent into the cavity between the wind collecting plates 4 from the joint 44. At this time, the wind entering the cavity between the wind collecting plates 4 can be mixed with the wind sent out from the wind guide ring 13, and can also be guided out from the upper space when the first side plate 41 and the second side plate 42 are arranged relatively to each other, and sent toward the upper part of the air outlet 301.

[0074] Further, such as Figure 5As shown, the wind collecting plate 4 includes a third side plate 43, and the third side plate 43 is connected to one end of the first side plate 41 and the second side plate 42, and the first side plate 41, the second side plate 42, and the third side plate 43 are surrounded in the circumference of the first wind wheel assembly 1. At this time, the front part of the cavity formed by the first side plate 41, the second side plate 42, and the third side plate 43 forms a mixing cavity 101 near the air outlet 301, and the space in the air guide ring 13 is connected to the space between the wind collecting plates 4.

[0075] Optional, see Figure 4 As shown, the volute air outlet 231 is connected to the joint 44, and the cavity between the wind collecting plate 4 and the air guide ring 13 defines a peripheral air outlet cavity 45. The peripheral air outlet cavity 45 is connected to the air outlet in the volute 23, and the wind sent into the peripheral air outlet cavity 45 by the volute 23 flows around the circumference of the air guide ring 13 and flows toward the front air mixing cavity 101 of the wind collecting plate 4, without interfering with the rotation of the first wind wheel 11, and the wind blown by the second wind wheel 21 is well buffered in the peripheral air outlet cavity 45.

[0076] In the description of the present invention, features defined as “first”, “second”, and “third” may explicitly or implicitly include one or more such features, and are used to distinguish and describe the features, without any distinction of order or importance.

[0077] The air conditioner 1000 according to the embodiment of the present invention will be described below with reference to the drawings.

[0078] According to an embodiment of the present invention, an air conditioner 1000 is provided. Fig. 9 , Fig.10 As shown, it includes: an air duct structure 100 of an air conditioner, a heat exchanger 200 and a panel 300.

[0079] The air duct structure 100 of the air conditioner is the aforementioned air duct structure 100 of the air conditioner, and its structure will not be described in detail here.

[0080] The heat exchanger 200 is formed on the air inlet side of the air conditioner duct structure 100, and a negative pressure chamber 201 is formed between the heat exchanger 200 and the air conditioner duct structure 100. The negative pressure chamber 201 allows the external wind to undergo sufficient heat exchange when passing through the heat exchanger 200, and the heat exchange is fast and the air inlet volume is large.

[0081] The panel 300 is arranged at the air outlet side of the air duct structure 100 of the air conditioner, and an air outlet 301 is arranged on the panel 300 corresponding to the first wind wheel assembly 1. The mixed wind formed by the wind blown by the first wind wheel 11 and the second wind wheel 21 is mixed and sent out from the air outlet 301.

[0082] Therefore, in the air conditioner 1000 with the above structure, after the air has been heat exchanged in the heat exchanger 200 and enters the negative pressure chamber 201, it is mixed in the air mixing chamber 101 under the drive and guidance of the air duct structure 100 of the air conditioner, and finally the air is delivered to the outside from the air outlet 301 corresponding to the first wind wheel assembly 1, and the wind feeling is comfortable (the reasons for the comfortable wind feeling are as mentioned above), and the air supply mode is adjustable.

[0083] Specifically, the adjustable air supply mode here means that the first wind wheel 11 and the second wind wheel 21 can be turned on at the same time or only one of the first wind wheel 11 and the second wind wheel 21 can be turned on. The situation of turning on both wind wheels at the same time is as described above and will not be repeated here.

[0084] When the first wind wheel 11 is turned on and the second wind wheel 21 is not turned on, the wind blown out of the air outlet 301 is only the wind generated by the first wind wheel 11. Therefore, the air supply distance is far enough and the air supply volume is slightly small.

[0085] When the first wind wheel 11 is not turned on and the second wind wheel 21 is turned on, the wind blown out of the air outlet 301 is mainly the wind generated by the second wind wheel 21, so the wind feels soft and the air supply volume is small. When the second wind wheel 21 continues to blow air outward, part of the wind on the air outlet side of the first wind wheel 11 is taken away and sent out from the air outlet 301, and the first wind wheel 11 rotates passively, increasing the air supply volume and saving electricity.

[0086] In some embodiments of the present invention, the air outlet 301 is formed in a ring shape, and the outer edge of the air guide ring 13 is connected to the air outlet 301. Here, the air sent out from the air guide ring 13 is blown out from the middle of the air outlet 301.

[0087] In some examples, the panel 300 is provided with a protrusion corresponding to the peripheral air outlet cavity 45. At this time, the outer edge of the air guide ring 13 is connected to the air outlet 301, and the edge of the wind collecting plate 4 is placed on the protrusion, so that the wind in the peripheral air outlet cavity 45 is directly sent to the air outlet 301, or enters the air guide ring 13 and is mixed with the wind blown by the first wind wheel 11 in the air mixing cavity 101 before being sent to the air outlet 301.

[0088] To better understand the solutions of the embodiments of the present invention, specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0089] Example 1

[0090] like Figure 1 As shown, an air duct structure 100 of an air conditioner includes a fan support 3, a first wind wheel assembly 1, a second wind wheel assembly 2 and a wind collecting plate 4. Figure 2 As shown, the fan bracket 3 is formed with a first fan mounting hole 31 and a second fan mounting hole 32. Figure 1 As shown, the first wind wheel assembly 1 is installed on the first wind turbine installation hole 31, as shown in FIG. Figure 2As shown, the second wind wheel assembly 2 is installed on the second wind turbine installation hole 32. Figure 4 As shown, an air mixing chamber 101 is formed on the fan bracket 3 at the air outlet side of the first wind wheel 11 .

[0091] like Figure 5 , Figure 6 As shown, the first wind wheel assembly 1 includes: a first wind wheel 11, a first motor 12, an air guide ring 13, a motor mounting frame 14 and a motor cover 15. Among them, a motor mounting frame 14 is provided at the first fan mounting hole 31, the first motor 12 is mounted on the motor mounting frame 14, the motor cover 15 is pressed on the first motor 12, the first motor 12 is connected to the first wind wheel 11 and drives the first wind wheel 11 to rotate. The first motor 12 adopts an axial flow fan. The air guide ring 13 is arranged around the circumference of the first wind wheel 11, the air guide ring 13 is formed into a cylindrical shape, and the air guide ring 13 is spaced apart from the air outlet 301 of the air conditioner 1000, and the space between the edge of the air guide ring 13 and the air outlet 301 forms a part of the air mixing chamber 101.

[0092] Continue to refer to Figure 5 , Figure 6 The second wind wheel assembly 2 includes: a second wind wheel 21, a second motor 22 and a volute 23. The second wind wheel 21 is a centrifugal wind wheel, which is installed in the second fan installation hole 32. The second motor 22 is connected to the second wind wheel 21 and drives the second wind wheel 21 to rotate. The volute 23 is covered on the second wind wheel 21, and the volute 23 is formed with a spoon-shaped air guide portion, and a volute air outlet 231 is formed at the upper end of the air guide portion.

[0093] Refer again Figure 5 , Figure 6 The air collecting plate 4 is arranged around the air guide ring 13, and a gap is formed between the air collecting plate 4 and the outer wall of the air guide ring 13. The length of the air guide ring 13 is smaller than the length of the air collecting plate 4. The air mixing cavity 101 includes a cavity formed by the portion of the air collecting plate 4 that is longer than the air guide ring 13 and a cavity between the air guide ring 13 and the air outlet 301. The cavity between the air collecting plate 4 and the air guide ring 13 defines a peripheral air outlet cavity 45. Figure 4 As shown, a joint 44 is formed at the lower end of the wind collecting plate 4 and connected to the volute air outlet 231 .

[0094] like Fig.10 As shown, an air conditioner 1000 having the air conditioner duct structure 100 described above includes the air conditioner duct structure 100 , a heat exchanger 200 and a panel 300 .

[0095] The heat exchanger 200 is formed on the air inlet side of the air duct structure 100 of the air conditioner, and a negative pressure chamber 201 is formed between the heat exchanger 200 and the air duct structure 100 of the air conditioner. A heat exchange air inlet 202 is formed at the rear of the heat exchanger 200 to communicate with the negative pressure chamber 201, and the air outside the air conditioner 1000 enters the negative pressure chamber 201 from the heat exchange air inlet 202. The panel 300 is arranged on the air outlet side of the air duct structure 100 of the air conditioner, and an air outlet 301 is arranged on the panel 300 corresponding to the first wind wheel assembly 1 (the structure of the air outlet 301 is as shown in FIG. Figure 8 The air mixing chamber 101 is connected to the air outlet 301 and supplies air to the outside.

[0096] Example 2

[0097] like Figure 7 As shown, the cylindrical air guide ring 13 of the air conditioner duct structure 100 in Example 1 is replaced with a plurality of air guide rings 13 that are detachably connected in sequence along the axial direction, and an air mixing chamber 101 is defined in the air guide ring 13, and an air guide inlet 131 is formed between adjacent air guide rings 13. The air outlet of the second wind wheel assembly 2 can enter the air mixing chamber 101 through the air guide inlet 131, and be mixed with the air outlet of the first wind wheel assembly 1 before being discharged. In addition, the axial flow fan in Example 1 is replaced with an oblique flow fan, and other identical structures are not described in detail. The air mixing chamber 101 of the air conditioner duct structure 100 of this embodiment is located inside the air guide ring 13.

[0098] like Fig. 9 As shown, the air conditioner 1000 having the air duct structure 100 of the air conditioner in Embodiment 2 has an outer edge of the air guide ring 13 connected to the air outlet 301, and a protrusion corresponding to the peripheral air outlet cavity 45 is provided on the panel 300. Other identical structures are not described in detail.

[0099] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0100] The air duct structure 100 of the air conditioner according to the embodiment of the present invention and other components of the air conditioner 1000 having the same, such as the working principle of the heat exchanger 200 and the formation of the negative pressure chamber 201, are well known to those skilled in the art and will not be described in detail here.

[0101] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. 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 invention. In this specification, the schematic representation of the above terms does not necessarily refer to 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.

[0102] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air duct structure of an air conditioner, characterized in that: include: A fan bracket, wherein a first fan mounting hole and a second fan mounting hole are formed on the fan bracket; A first wind wheel assembly, the first wind wheel assembly comprising a first wind wheel, the first wind wheel being mounted at the first fan mounting hole, and an air mixing chamber being formed on the fan bracket at the air outlet side of the first wind wheel; a second wind wheel assembly, the second wind wheel assembly comprising a second wind wheel, the second wind wheel being mounted at the second fan mounting hole, the air inlet direction of the second wind wheel and the air outlet direction of the second wind wheel forming an angle, the second wind wheel sending air in the direction of the first wind wheel, when the first wind wheel and the second wind wheel are working at the same time, the air outlet of the second wind wheel and the air outlet of the first wind wheel are mixed and discharged in the air mixing chamber; The first wind wheel is an axial flow wind wheel or an oblique flow wind wheel, and the second wind wheel is a centrifugal wind wheel; The first wind wheel assembly also includes: A first motor, wherein the first motor drives the first wind wheel to rotate; An air guide ring, which is arranged around the circumference of the first wind wheel, and at least a part of the air mixing cavity is defined by the interior of the air guide ring; The air guide ring is spaced apart from the air outlet of the air conditioner, and the space between the air guide ring and the air outlet defines at least a part of the air mixing chamber; The second wind wheel assembly also includes: A second motor, wherein the second motor drives the second wind wheel to rotate; A volute, wherein the volute cover is arranged on the second wind wheel, the volute comprises a volute air outlet, and the volute air outlet faces the air mixing chamber; The fan bracket is provided with a wind gathering plate, and the wind gathering plate is arranged around the wind guide ring; The axial length of the air guide ring is smaller than the length of the air gathering plate, and at least a portion of the air mixing cavity is defined by a cavity formed by a portion of the air gathering plate that is longer than the air guide ring; A wind gathering plate, the wind gathering plate comprising a first side plate and a second side plate, the first side plate and the second side plate are arranged on opposite sides of the first wind wheel assembly, a joint is defined between the first side plate and the second side plate, and the wind from the second wind wheel is sent into the cavity between the wind gathering plates through the joint; When the first wind wheel and the second wind wheel work simultaneously, the air output from the second wind wheel and the air output from the first wind wheel are mixed and output in the air mixing chamber.

2. The air duct structure of the air conditioner according to claim 1, characterized in that: The air guide rings are formed in plurality, and the plurality of air guide rings are detachably connected in sequence along the axial direction, and the air mixing chamber is defined within the plurality of air guide rings.

3. The air duct structure of the air conditioner according to claim 1, characterized in that: The wind gathering plate also includes a third side plate, which is connected to one end of the first side plate and the second side plate, and the first side plate, the second side plate and the third side plate are surrounded in the circumference of the first wind wheel assembly.

4. The air duct structure of the air conditioner according to claim 1, characterized in that: The volute air outlet is connected to the joint, and the cavity between the wind gathering plate and the air guide ring defines a peripheral air outlet cavity.

5. The air duct structure of the air conditioner according to claim 1, characterized in that: A motor mounting frame is provided at the first fan mounting hole, and the motor mounting frame includes a motor mounting plate and a plurality of ribs, one end of the plurality of ribs is circumferentially connected to the motor mounting plate, and the other end of the plurality of ribs is connected to the fan bracket, and the first motor is arranged on the motor mounting plate.

6. The air duct structure of the air conditioner according to claim 5, characterized in that: The first wind wheel assembly also includes a motor cover plate, and the motor cover plate is pressed onto the first motor.

7. An air conditioner, characterized in that: include: An air duct structure for an air conditioner, wherein the air duct structure for an air conditioner is the air duct structure for an air conditioner according to any one of claims 1 to 6; A heat exchanger, wherein the heat exchanger is formed on the air inlet side of the air duct structure of the air conditioner, and a negative pressure chamber is formed between the heat exchanger and the air duct structure of the air conditioner; A panel is arranged on the air outlet side of the air duct structure of the air conditioner, and an air outlet is arranged on the panel corresponding to the first wind wheel assembly.

8. The air conditioner according to claim 7, characterized in that: The air outlet is formed in a ring shape, and the outer edge of the air guide ring of the air duct structure of the air conditioner is connected to the air outlet.

9. The air conditioner according to claim 8, characterized in that: The panel is provided with a protrusion corresponding to the peripheral air outlet cavity of the air duct structure of the air conditioner.

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