Air duct assembly of air conditioner and indoor unit of air conditioner

Abstract

The utility model provides an air duct assembly of an air conditioner and an indoor unit of the air conditioner. The air duct assembly comprises a first motor, a second motor and a shell. The first motor comprises a first motor body and a first protruding block. The first protruding block extends outwards from the peripheral wall of the first motor body and is located at the end, close to the first output shaft, of the first motor body. The second motor comprises a second motor body and a second protruding block. The second protruding block extends outwards from the peripheral wall of the second motor body and is located at the end, away from the second output shaft, of the second motor body. A first containing cavity and a second containing cavity which are arranged at intervals are formed in the shell. The first motor is fixedly installed in the first containing cavity, and a first groove connected with the first protruding block in an inserted and sleeved mode is formed in the first containing cavity. The second motor is fixedly installed in the second containing cavity, and a second groove connected with the second protruding block in an inserted and sleeved mode is formed in the second containing cavity. The air duct assembly can effectively prevent the two motors from being installed reversely, and the quality accidents that a wind wheel rotates reversely and an air conditioner does not discharge air are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air processing equipment, in particular to an air duct component of an air conditioner and an indoor unit of the air conditioner. Background Art

[0002] For indoor units of air conditioners, for example, dual-duct cabinet air conditioners usually have two ducts spaced apart, with a set of motors and impellers in each duct to increase the air volume and improve the temperature control effect. To improve the stability of the cabinet air conditioner, the specifications of the two sets of motors and impellers are similar, and they rotate in opposite directions. This results in the two motors being easily installed in reverse during production, assembly or maintenance, resulting in quality accidents such as the impeller reversal and the air conditioner failing to produce air. Utility Model Content

[0003] In view of the above problems, the present invention is proposed to provide an air duct assembly and an air conditioner indoor unit of an air conditioner that overcome the above problems or at least partially solve the above problems, aiming to solve the problem that the two motors of the existing air conditioner are easily installed reversely.

[0004] Specifically, the utility model provides the following technical solutions:

[0005] An air duct assembly of an air conditioner comprises a first motor, a second motor and a shell.

[0006] The first motor comprises a first motor body and a first protrusion. The first protrusion extends outward from a peripheral wall of the first motor body. The first protrusion is located at one end of the first motor body close to a first output shaft of the first motor.

[0007] The second motor comprises a second motor body and a second protrusion. The second protrusion extends outward from the peripheral wall of the second motor body. The second protrusion is located at an end of the second motor body away from the second output shaft of the second motor.

[0008] The shell forms a first accommodating cavity and a second accommodating cavity which are spaced apart from each other.

[0009] The first motor is fixedly installed in the first accommodating cavity, and a first groove connected to the first protruding plug sleeve is provided in the first accommodating cavity. The second motor is fixedly installed in the second accommodating cavity, and a second groove connected to the second protruding plug sleeve is provided in the second accommodating cavity.

[0010] Optionally, the first protrusion protrudes outward in the radial direction of the first motor body.

[0011] Optionally, the second protrusion protrudes outward in the radial direction of the second motor body.

[0012] Optionally, on a projection plane perpendicular to the first output shaft, the first bump is trapezoidal, and a central angle formed by a root of the first bump and an axis of the first output shaft is greater than 20 degrees.

[0013] Optionally, on a projection plane perpendicular to the second output shaft, the second bump is trapezoidal, and a central angle formed by a root of the second bump and an axis of the second output shaft is greater than 20 degrees.

[0014] Optionally, the shell includes a front shell and a rear shell, and the front shell and the rear shell together form the first accommodating cavity and the second accommodating cavity.

[0015] The first groove and the second groove are both located on the rear housing.

[0016] Optionally, the first protrusion extends backward from the peripheral wall of the first motor body. The first motor also includes a first positioning protrusion extending leftward and / or rightward from the peripheral wall of the first motor body. The rear housing is also provided with a first positioning groove corresponding to the first positioning protrusion.

[0017] Optionally, the second protrusion extends backward from the peripheral wall of the second motor body. The second motor also includes a second positioning protrusion extending leftward and / or rightward from the peripheral wall of the second motor body. The rear housing is also provided with a second positioning groove corresponding to the second positioning protrusion.

[0018] Optionally, the first positioning protrusion is located at an end of the first motor body having the first protrusion.

[0019] Optionally, the second positioning protrusion is located at an end of the second motor body having the second protrusion.

[0020] Optionally, the shell includes a front shell and a rear shell, and the front shell and the rear shell together form the first accommodating cavity and the second accommodating cavity.

[0021] The first output shaft is arranged vertically and is located on the upper side of the first motor body. A first boss is coaxially arranged at the lower end of the first motor body, a first fixing ring corresponding to the first boss is arranged on the rear housing, and the first boss is plug-inly connected in the first fixing ring.

[0022] Optionally, the second output shaft is arranged vertically and is located on the upper side of the second motor body. A second boss is coaxially arranged at the lower end of the first motor body, a second fixing ring corresponding to the second boss is arranged on the rear housing, and the second boss is plug-inly connected in the second fixing ring.

[0023] Optionally, a first avoidance chamfer is provided on the upper edge of the front end of the first fixing ring.

[0024] Optionally, a second avoidance chamfer is provided on the upper edge of the front end of the second fixing ring.

[0025] Optionally, the first motor and the second motor are both arranged vertically and spaced apart from each other left and right. The outlet end of the first motor faces the second motor. The outlet end of the second motor faces the first motor.

[0026] On the other hand, the present application also provides an air conditioner indoor unit, the air conditioner indoor unit comprising a first wind wheel, a second wind wheel and the above-mentioned air duct assembly. The first wind wheel is transmission-connected to the first motor, and the second wind wheel is transmission-connected to the second motor.

[0027] The utility model provides an air duct assembly for an air conditioner, wherein a first protrusion is provided on the peripheral wall of the shaft extension end of the first motor body, and a first groove is provided in the first accommodating chamber. When the first motor is installed in the first accommodating chamber, the first protrusion can be inserted and connected in the first groove. A second protrusion is provided on the peripheral wall of the end of the second motor body away from the shaft extension end, and a second groove is provided in the second accommodating chamber. When the second motor is installed in the second accommodating chamber, the second protrusion can be inserted and connected in the second groove. The first accommodating chamber can block the insertion of the second protrusion, and the second accommodating chamber can block the insertion of the first protrusion, which can effectively prevent the first motor and the second motor from being installed reversely, and avoid quality accidents such as the reversal of the wind wheel and the air conditioner not producing air.

[0028] On the other hand, since the first protrusion and the second protrusion extend outward from the peripheral walls of the first motor body and the second motor body respectively, when they are respectively inserted into the first groove and the second groove, the first groove and the second groove can respectively form circumferential stops for the first motor body and the second motor body, effectively preventing the first motor and the second motor from slipping and rotating in the accommodating cavity during operation.

[0029] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0031] Figure 1 is a schematic rear view of an indoor unit of an air conditioner according to an embodiment of the utility model;

[0032] Figure 2 It is a schematic partial structural diagram of an air duct assembly according to an embodiment of the utility model, with some components hidden;

[0033] Figure 3 It is a schematic partial structural diagram of an air duct assembly according to an embodiment of the utility model, with some components hidden;

[0034] Figure 4 yes Figure 3 A schematic cross-sectional view along the AA axis;

[0035] Figure 5 yes Figure 3 A schematic cross-sectional view along the BB axis;

[0036] Figure 6 is a schematic partial structural diagram of a front housing of an air duct assembly according to an embodiment of the utility model;

[0037] Figure 7 is a schematic partial structural diagram of a rear housing of an air duct assembly according to an embodiment of the utility model;

[0038] Figure 8 is a schematic structural diagram of a first motor of an air duct assembly according to an embodiment of the utility model;

[0039] Fig. 9 is a schematic top view of a first motor of an air duct assembly according to an embodiment of the utility model;

[0040] Fig.10 is a schematic structural diagram of a first motor of an air duct assembly according to an embodiment of the utility model;

[0041] Fig.11 is a schematic structural diagram of a second motor of an air duct assembly according to an embodiment of the utility model;

[0042] Fig.12 It is a schematic bottom view of the second motor of the air duct assembly according to one embodiment of the utility model.

[0043] List of reference numerals:

[0044] 100, first motor; 110, first motor body; 120, first protrusion; 130, first output shaft; 140, first positioning protrusion; 150, first boss; 200, second motor; 210, second motor body; 220, second protrusion; 230, second output shaft; 240, second positioning protrusion; 250, second boss; 300, shell; 330, front shell; 340, rear shell; 311, first accommodating cavity; 312, first groove; 313, first positioning groove; 314, first fixing ring; 315, first avoidance chamfer; 321, second accommodating cavity; 322, second groove; 323, second positioning groove; 324, second fixing ring; 325, second avoidance chamfer; 400, motor line; 500, first wind wheel; 600, second wind wheel. DETAILED DESCRIPTION

[0045] Refer to the following Figures 1 to 12 To describe the air duct assembly and the air conditioner indoor unit of the air conditioner in the embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0046] Unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0047] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. That is, in the description of this embodiment, the first feature being "above", "above", and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below", or "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0048] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", 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 utility model. 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0049] Figure 1 FIG. 1 is a schematic rear view of an indoor unit of an air conditioner according to an embodiment of the present utility model. Figure 1 As shown, and refer to Figure 2-12 The embodiment of the utility model provides an air duct assembly of an air conditioner, comprising a first motor 100 , a second motor 200 and a housing 300 .

[0050] The first motor 100 includes a first motor body 110 and a first protrusion 120. The first protrusion 120 protrudes outward from the peripheral wall of the first motor body 110. The first protrusion 120 is located at one end of the first motor body 110 close to the first output shaft 130 of the first motor 100.

[0051] The second motor 200 includes a second motor body 210 and a second protrusion 220. The second protrusion 220 extends outward from the peripheral wall of the second motor body 210. The second protrusion 220 is located at one end of the second motor body 210 away from the second output shaft 230 of the second motor 200.

[0052] The housing 300 forms a first accommodating chamber 311 and a second accommodating chamber 321 which are spaced apart from each other.

[0053] The first motor 100 is fixedly mounted in the first accommodating cavity 311, and a first groove 312 is provided in the first accommodating cavity 311 to be plugged into the first protrusion 120. The second motor 200 is fixedly mounted in the second accommodating cavity 321, and a second groove 322 is provided in the second accommodating cavity 321 to be plugged into the second protrusion 220.

[0054] The air conditioner may be a cabinet air conditioner, a wall mounted air conditioner, etc. In this embodiment, the technical solution of the present application is described by taking the cabinet air conditioner with double air outlets as an example.

[0055] Exemplarily, the housing 300 may be manufactured by an integrated molding process, and two left and right air ducts are formed in the housing 300, and the two air ducts are arranged at intervals and opposite to each other. The left and right air ducts may be arranged in parallel, or may form a preset angle. A motor and a wind wheel group are arranged in each air duct, such as a crossflow fan formed by a motor and a crossflow wind wheel.

[0056] Specifically, the first motor 100 can be coaxially fixedly connected to the first wind wheel 500 to form a first crossflow fan, and the second motor 200 can be coaxially fixedly connected to the second wind wheel 600 to form a second crossflow fan. The first crossflow fan and the second crossflow fan can be arranged relative to each other, and the first motor 100 and the second motor 200 have similar specifications but opposite rotation speeds, so that the angular momentum of the first crossflow fan and the second crossflow fan when rotating can be balanced, thereby improving the stability of the air conditioner cabinet.

[0057] In this embodiment, the first motor 100 is fixedly installed in the first accommodating cavity 311, and the second motor 200 is fixedly installed in the second accommodating cavity 321. In order to avoid the first motor 100 and the second motor 200 being installed reversely during production and maintenance, a first protrusion 120 is provided at one end of the peripheral wall of the first motor body 110 close to the first output shaft 130, and a first groove 312 allowing the first protrusion 120 to be inserted is provided in the first accommodating cavity 311. A second protrusion 220 is provided at one end of the peripheral wall of the second motor body 210 away from the second output shaft 230, and a second groove 322 allowing the second protrusion 220 to be inserted is provided in the second accommodating cavity 321. The first protrusion 120 and the second protrusion 220 may have the same or different shapes and sizes, which are not limited here.

[0058] It should be understood that the first accommodating cavity 311 may also be provided with an axial hole for allowing the first output shaft 130 to pass through, and the second accommodating cavity 321 may also be provided with an axial hole for allowing the second output shaft 230 to pass through. When a motor is turned upside down, it cannot be installed in the corresponding accommodating cavity.

[0059] During installation, first install the first motor 100 into the first accommodating cavity 311, put the first output shaft 130 into the corresponding shaft hole, and then insert the first protrusion 120 into the first groove 312. If the first motor 100 is installed into the second accommodating cavity 321 by mistake, after the second output shaft 230 is put into the corresponding shaft hole, since the first groove 312 is not provided near the shaft hole of the second accommodating cavity 321, a stop is formed for the first protrusion 120. In other words, the installation of the first motor 100 into the second accommodating cavity 321 is restricted, and foolproof installation of the motor is achieved, which can effectively prevent the first motor 100 and the second motor 200 from being installed in reverse, and avoid quality accidents such as the reversal of the wind wheel and the air conditioner not producing air. Similarly, the first accommodating cavity 311 does not allow the second motor 200 to be placed, which will not be repeated here.

[0060] On the other hand, since the first protrusion 120 and the second protrusion 220 extend outward from the peripheral walls of the first motor body 110 and the second motor body 210 respectively, when they are respectively inserted into the first groove 312 and the second groove 322, the first groove 312 and the second groove 322 can respectively block the first motor body 110 and the second motor body 210 in the circumferential direction to form a torque, which can effectively prevent the first motor 100 and the second motor 200 from slipping and rotating in the accommodating cavity during operation.

[0061] In some embodiments of the air duct assembly of the present utility model, as Figure 5 and Fig. 9 As shown, the first protrusion 120 protrudes outward along the radial direction of the first motor body 110 .

[0062] In this embodiment, the first protrusion 120 protrudes radially outward, and a first groove 312 that is recessed radially may be correspondingly provided in the first accommodating cavity 311. When the first motor 100 is placed into the first accommodating cavity 311, it is convenient to align the first protrusion 120 and insert it into the first groove 312, which can improve the installation efficiency. Especially during maintenance, the operating space and lighting conditions on site may be relatively poor. By limiting the protruding direction of the first protrusion 120, the first motor 100 can be placed into the first accommodating cavity 311 conveniently and quickly.

[0063] In some embodiments of the air duct assembly of the present utility model, as Figure 5 and Figure 8-9 As shown, on a projection plane perpendicular to the first output shaft 130 , the first protrusion 120 is trapezoidal, and a central angle α formed by a root of the first protrusion 120 and the axis of the first output shaft 130 is greater than 20 degrees.

[0064] In this embodiment, the first protrusion 120 is trapezoidal with the tip facing outward, and the corresponding first groove 312 is also trapezoidal, so that it is further convenient to align and insert the first protrusion 120 into the first groove 312, thereby improving the installation efficiency of the first motor 100.

[0065] On the other hand, since the central angle of the root of the first protrusion 120 is greater than 20 degrees, the first protrusion 120 is firmly connected to the first motor body 110, and the first protrusion 120 has good structural strength, so that when inserted into the first groove 312, it can withstand the larger torque of the first groove 312, thereby preventing the first motor 100 from slipping and rotating in the first accommodating cavity 311 during operation.

[0066] In some embodiments of the air duct assembly of the present utility model, as Figure 4 and Fig.12 As shown, the second protrusion 220 protrudes outward along the radial direction of the second motor body 210 .

[0067] In this embodiment, the second protrusion 220 protrudes radially outward, and a second groove 322 that is recessed radially may be correspondingly provided in the second accommodating cavity 321. When the second motor 200 is placed in the second accommodating cavity 321, it is convenient to align and insert the second protrusion 220 into the second groove 322, which can improve the installation efficiency. Especially during maintenance, the operating space and lighting conditions on site may be relatively poor. By limiting the protruding direction of the second protrusion 220, the second motor 200 can be placed in the second accommodating cavity 321 conveniently and quickly.

[0068] In some embodiments of the air duct assembly of the present utility model, as Figure 4 and Figure 11-12 As shown, on a projection plane perpendicular to the second output shaft 230 , the second protrusion 220 is trapezoidal, and a central angle formed by a root of the second protrusion 220 and the axis of the second output shaft 230 is greater than 20 degrees.

[0069] In this embodiment, the second protrusion 220 is trapezoidal with the tip facing outward, and the corresponding second groove 322 is also trapezoidal, so that it is further convenient to align and insert the second protrusion 220 into the second groove 322, thereby improving the installation efficiency of the second motor 200.

[0070] On the other hand, since the central angle of the root of the second protrusion 220 is greater than 20 degrees, the second protrusion 220 is firmly connected to the second motor body 210, and the second protrusion 220 has good structural strength, so that when inserted into the second groove 322, it can withstand the larger torque of the second groove 322, thereby preventing the second motor 200 from slipping and rotating in the second accommodating cavity 321 during operation.

[0071] In some embodiments of the air duct assembly of the present utility model, as Figure 1-7 As shown, the housing 300 includes a front housing 330 and a rear housing 340 , and the front housing 330 and the rear housing 340 together form a first accommodating cavity 311 and a second accommodating cavity 321 .

[0072] The first groove 312 and the second groove 322 are both located on the rear housing 340 .

[0073] In this embodiment, the housing 300 is formed by a front housing 330 and a rear housing 340 which are detachably fixedly connected. This facilitates production and manufacturing, and the front housing 330 and the rear housing 340 can be manufactured in one piece.

[0074] On the other hand, it is easy to assemble. Specifically, during assembly, the first motor 100 and the first wind wheel 500 can be assembled into a first crossflow fan, and the second motor 200 and the second wind wheel 600 can be assembled into a second crossflow fan, and then the first crossflow fan and the second crossflow fan can be placed radially into part of the first accommodating cavity 311 and part of the second accommodating cavity 321 of the rear housing 340, respectively, and finally the front housing 330 can be installed on the front side of the rear housing 340. This assembly method solves the problem in the prior art that a large operating space is required when the first crossflow fan and the second crossflow fan are installed into the housing 300 along their axial sleeves.

[0075] It should be understood that, whether it is a cabinet air conditioner or a wall air conditioner, the front housing 330 faces the indoor space, and the rear housing 340 faces the wall, corner, etc. In this embodiment, the first groove 312 and the second groove 322 are both on the rear housing 340. In this way, when repairing the air conditioner, the first motor 100 and the second motor 200 can be conveniently placed in the rear housing 340, connected to the motor line 400, and then the front housing 330 is covered. If the first groove 312 and the second groove 322 are set on the front housing 330, it is necessary to first place the first motor 100 and the second motor 200 in the front housing 330, and then install the front housing 330 on the rear housing 340. The installation operation is more troublesome, and it is not easy to connect the motor line 400.

[0076] In some embodiments of the air duct assembly of the present utility model, as Figure 5 , Figure 7 and Fig. 9 As shown, the first protrusion 120 extends backward from the peripheral wall of the first motor body 110. The first motor 100 also includes a first positioning protrusion 140 extending leftward and / or rightward from the peripheral wall of the first motor body 110. The rear housing 340 is also provided with a first positioning groove 313 corresponding to the first positioning protrusion 140.

[0077] In this embodiment, the first positioning protrusion 140 is embedded and installed in the first positioning groove 313. On the one hand, when the first positioning protrusion 140 is embedded and installed in the first positioning groove 313 during installation, it indicates that the first protrusion 120 has been accurately inserted and installed in the first groove 312, and the rear end of the first motor body 110 has been accurately installed in the first accommodating cavity 311. On the other hand, the first positioning protrusion 140 also provides torque to the first motor body 110 to a certain extent, thereby preventing the first motor 100 from slipping and rotating in the first accommodating cavity 311 during operation.

[0078] Preferably, there are two first positioning protrusions 140, which extend outward from the left and right sides of the peripheral wall of the first motor body 110, respectively, and the angle between the two first positioning protrusions 140 is 165-175 degrees. In this way, the first positioning protrusion 140 can be completely embedded in the first positioning groove 313 of the rear housing 340, and there is no need to set a corresponding avoidance groove on the front housing 330, and there is no need to confirm whether the first positioning protrusion 140 is accurately matched with the front housing 330 during installation. This reduces manufacturing costs and improves installation efficiency.

[0079] In some embodiments of the air duct assembly of the present utility model, as Figure 4 , Figure 7 and Fig.12 As shown, the second protrusion 220 extends backward from the peripheral wall of the second motor body 210. The second motor 200 also includes a second positioning protrusion 240 extending leftward and / or rightward from the peripheral wall of the second motor body 210. The rear housing 340 is also provided with a second positioning groove 323 corresponding to the second positioning protrusion 240.

[0080] In this embodiment, the second positioning protrusion 240 is embedded and installed in the second positioning groove 323. On the one hand, when the second positioning protrusion 240 is embedded and installed in the second positioning groove 323 during installation, it indicates that the second protrusion 220 has been accurately inserted and installed in the second groove 322, and the rear end of the second motor body 210 has been accurately installed in the second accommodating cavity 321. On the other hand, the second positioning protrusion 240 also provides torque to the second motor body 210 to a certain extent, thereby preventing the second motor 200 from slipping and rotating in the second accommodating cavity 321 during operation.

[0081] Preferably, there are two second positioning protrusions 240, which extend outward from the left and right sides of the peripheral wall of the second motor body 210, respectively, and the angle between the two second positioning protrusions 240 is 165-175 degrees. In this way, the second positioning protrusion 240 can be completely embedded in the second positioning groove 323 of the rear housing 340, and there is no need to set a corresponding avoidance groove on the front housing 330, and there is no need to confirm whether the second positioning protrusion 240 is accurately matched with the front housing 330 during installation. This reduces manufacturing costs and improves installation efficiency.

[0082] In some embodiments of the air duct assembly of the present utility model, as Figure 8 As shown, the first positioning protrusion 140 is located at the end of the first motor body 110 having the first protrusion 120 .

[0083] In this way, it can be further visually confirmed whether the first protrusion 120 is accurately inserted and installed in the first groove 312 .

[0084] In some embodiments of the air duct assembly of the present utility model, as Fig.11 As shown, the second positioning protrusion 240 is located at the end of the second motor body 210 having the second protrusion 220 .

[0085] In this way, it can be further visually confirmed whether the second protrusion 220 is accurately inserted and installed in the second groove 322 .

[0086] In some embodiments of the air duct assembly of the present utility model, as Figure 7 As shown, the housing 300 includes a front housing 330 and a rear housing 340 , and the front housing 330 and the rear housing 340 together form a first accommodating cavity 311 and a second accommodating cavity 321 .

[0087] The first output shaft 130 is arranged vertically and is located on the upper side of the first motor body 110. A first boss 150 is coaxially arranged at the lower end of the first motor body 110, and a first fixing ring 314 corresponding to the first boss 150 is arranged on the rear housing 340, and the first boss 150 is plug-connected in the first fixing ring 314.

[0088] In this embodiment, the first boss 150 is plug-connected to the first fixing ring 314, which can limit the lower end of the first cross-flow fan to prevent the first cross-flow fan from detaching from the first accommodating chamber 311. During maintenance, the air-conditioning cabinet is usually placed vertically, and the first cross-flow fan is installed upright in the first accommodating chamber 311. If the front housing 330 is removed from the rear housing 340, the first cross-flow fan may fall off forward. By providing the first boss 150 and the first fixing ring 314, the lower end of the first motor 100 can be effectively prevented from detaching from the first accommodating chamber 311.

[0089] In some embodiments of the air duct assembly of the present utility model, as Figure 4 and Figure 7 As shown, a first avoidance chamfer 315 is provided on the upper edge of the front end of the first fixing ring 314 .

[0090] The first avoidance chamfer 315 is disposed at the upper edge of the front end of the first fixing ring 314 to facilitate the backward installation of the first boss 150 into the first fixing ring 314. It should be understood that the first boss 150 can be made of elastic or flexible material, such as rubber.

[0091] In some embodiments of the air duct assembly of the present utility model, as Figure 7 As shown, the second output shaft 230 is arranged vertically, and the second output shaft 230 is located on the upper side of the second motor body 210. A second boss 250 is coaxially arranged at the lower end of the first motor body 110, and a second fixing ring 324 corresponding to the second boss 250 is arranged on the rear housing 340, and the second boss 250 is plug-connected in the second fixing ring 324.

[0092] In this embodiment, the second protrusion 250 is plug-connected to the second fixing ring 324 , and its structure and principle are the same as the first protrusion 150 is plug-connected to the first fixing ring 314 , which will not be described again.

[0093] In some embodiments of the air duct assembly of the present utility model, as Figure 4 and Figure 7 As shown, a second avoidance chamfer 325 is provided on the upper edge of the front end of the second fixing ring 324 .

[0094] The second avoidance chamfer 325 is disposed at the upper edge of the front end of the second fixing ring 324 to facilitate the installation of the second boss 250 backward into the second fixing ring 324. It should be understood that the second boss 250 can be made of elastic or flexible material, such as rubber.

[0095] In some embodiments of the air duct assembly of the present utility model, as Figure 2 As shown, the first motor 100 and the second motor 200 are both arranged vertically and spaced apart from each other. The outlet end of the first motor 100 faces the second motor 200. The outlet end of the second motor 200 faces the first motor 100.

[0096] In this embodiment, the outlet terminals of the two motors are perpendicular to their axial directions, and the motor wires 400 drawn out are located between the two motors, so that foolproof installation of the motors can be achieved. Specifically, during installation, if the outlet terminal of a motor faces away from the direction of another motor, it indicates that the motor is installed upside down.

[0097] Preferably, if Figure 3 As shown, the housing 300 is also provided with an indication mark of the direction of the motor line 400, such as an arrow, text, etc., to provide prompts or warnings to achieve visual error prevention.

[0098] Preferably, if Figure 3 As shown, the motor wire 400 of the first motor 100 is set to black, and the motor wire 400 of the second motor 200 is set to blue, and indicator marks such as color, text, etc. are set in the first accommodating cavity 311 and the second accommodating cavity 321 to provide prompts or warnings to achieve visual anti-foolproofing.

[0099] In some embodiments of the air conditioner indoor unit of the utility model, as Figure 1 As shown, the indoor unit of the air conditioner comprises a first wind wheel 500, a second wind wheel 600 and an air duct assembly of any one of the above embodiments or a combination of embodiments. The first wind wheel 500 is transmission-connected to the first motor 100, and the second wind wheel 600 is transmission-connected to the second motor 200.

[0100] The housing 300 may be provided with a first wind duct and a second wind duct, and a first wind wheel 500 and a second wind wheel 600 may be rotatably installed in the first wind duct and the second wind duct respectively. The first wind wheel 500 and the second wind wheel 600 may both be crossflow wind wheels. The first wind wheel 500 may be coaxially fixedly connected to the first output shaft 130 to form a first crossflow fan with the first motor 100, and the second wind wheel 600 may be coaxially fixedly connected to the second output shaft 230 to form a second crossflow fan with the second motor 200.

[0101] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air duct assembly for an air conditioner, characterized in that: include: A first motor, the first motor comprising a first motor body and a first protrusion; the first protrusion protrudes outward from a peripheral wall of the first motor body; the first protrusion is located at one end of the first motor body close to a first output shaft of the first motor; a second motor, the second motor comprising a second motor body and a second protrusion; the second protrusion protrudes outward from a peripheral wall of the second motor body; the second protrusion is located at an end of the second motor body away from a second output shaft of the second motor; A housing, wherein the housing forms a first accommodating cavity and a second accommodating cavity that are spaced apart from each other; Among them, the first motor is fixedly installed in the first accommodating cavity, and the first accommodating cavity is provided with a first groove connected to the first protrusion socket; the second motor is fixedly installed in the second accommodating cavity, and the second accommodating cavity is provided with a second groove connected to the second protrusion socket.

2. The air duct assembly according to claim 1, characterized in that: The first protrusion protrudes outward along the radial direction of the first motor body; The second protrusion protrudes outward along the radial direction of the second motor body.

3. The air duct assembly according to claim 2, characterized in that: On a projection plane perpendicular to the first output shaft, the first projection is trapezoidal, and a central angle formed by a root of the first projection and the axis of the first output shaft is greater than 20 degrees; and / or On a projection plane perpendicular to the second output shaft, the second protrusion is trapezoidal, and a central angle formed by a root of the second protrusion and an axis of the second output shaft is greater than 20 degrees.

4. The air duct assembly according to claim 2, characterized in that: The housing comprises a front housing and a rear housing, wherein the front housing and the rear housing together form the first accommodating cavity and the second accommodating cavity; The first groove and the second groove are both located on the rear housing.

5. The air duct assembly according to claim 4, characterized in that: The first protrusion extends backward from the peripheral wall of the first motor body; the first motor also includes a first positioning protrusion extending leftward and / or rightward from the peripheral wall of the first motor body; and a first positioning groove corresponding to the first positioning protrusion is also provided on the rear housing; The second protrusion extends backward from the peripheral wall of the second motor body; the second motor also includes a second positioning protrusion extending leftward and / or rightward from the peripheral wall of the second motor body; and a second positioning groove corresponding to the second positioning protrusion is also provided on the rear shell.

6. The air duct assembly according to claim 5, characterized in that: The first positioning protrusion is located at the end of the first motor body having the first protrusion; and / or The second positioning protrusion is located at the end of the second motor body having the second protrusion.

7. The air duct assembly according to claim 1, characterized in that: The housing comprises a front housing and a rear housing, wherein the front housing and the rear housing together form the first accommodating cavity and the second accommodating cavity; The first output shaft is arranged vertically, and the first output shaft is located on the upper side of the first motor body; a first boss is coaxially arranged at the lower end of the first motor body, a first fixing ring corresponding to the first boss is arranged on the rear housing, and the first boss is plug-inly connected in the first fixing ring; The second output shaft is arranged vertically, and the second output shaft is located on the upper side of the second motor body; a second boss is coaxially arranged at the lower end of the first motor body, and a second fixing ring corresponding to the second boss is arranged on the rear shell body, and the second boss is plug-in connected to the second fixing ring.

8. The air duct assembly according to claim 7, characterized in that: A first avoidance chamfer is provided on the upper side edge of the front end of the first fixing ring; and / or The upper edge of the front end of the second fixing ring is provided with a second avoidance chamfer.

9. The air duct assembly according to claim 1, characterized in that: The first motor and the second motor are both arranged vertically and spaced apart from each other left and right; the output terminal of the first motor faces the second motor; and the output terminal of the second motor faces the first motor.

10. An air conditioner indoor unit, characterized in that: It comprises a first wind wheel, a second wind wheel and an air duct assembly as described in any one of claims 1 to 9; the first wind wheel is transmission-connected to the first motor, and the second wind wheel is transmission-connected to the second motor.

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