Air duct assembly and air conditioner indoor unit

Abstract

The utility model provides an air duct assembly and an air conditioner indoor unit. An air duct assembly includes an upper end portion, an air duct portion, and a lower end portion. The air duct part defines an air duct space. The upper end part is arranged at the upper end of the air duct part and is configured to cover the upper end of the air duct space. The lower end part is arranged at the lower end of the air duct part and is configured to cover the lower end of the air duct space. At least one through hole is formed in the upper end part, and the through hole is configured to guide condensate water on the upper surface of the upper end part to the surface, deviating from the air duct space, of the air duct part or the outer side of the surface, deviating from the air duct space, of the air duct part. The influence of the air in the air duct space on the sliding-down area of the air duct assembly for the condensed water is very small. Therefore, in the sliding process of the condensate water, the sliding track deviation caused by the influence of air in the air duct space is avoided.

Description

Technical Field

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

[0002] Air conditioners are indispensable electrical appliances in people's work, production and daily life. In summer, air conditioners are in cooling mode to adjust the indoor temperature. During the cooling process, the evaporator of the air conditioner absorbs heat to exchange heat with the indoor air to cool the room. During the working process of the indoor unit, the temperature of the outer surface of the duct component that forms the air duct and accommodates the evaporation is lower than the dew point temperature of the indoor air. When the indoor air contacts the outer surface of the duct component, the water vapor contained in it will condense into dewdrops. When the dewdrops gather to a certain size, they will slide into the water tray under the evaporator.

[0003] Regarding the condensed water at the top of the air duct assembly, the distance that the condensed water slides down is too long. The inventors found that the condensed water easily deviates during the sliding process, causing the condensed water to drip onto the outside of the water tray, and then causing the condensed water to drip into the air conditioner or onto the indoor floor, giving users a poor user experience. Utility Model Content

[0004] In view of the above problems, the present invention is proposed to provide an air duct assembly and an air conditioner indoor unit that overcome the above problems or at least partially solve the above problems, and can solve the problem that the condensed water slides too long, causing the condensed water to easily shift during the sliding process.

[0005] Specifically, the utility model provides an air duct assembly, including an upper end portion, an air duct portion, and a lower end portion;

[0006] The air duct portion defines an air duct space; the upper end portion is disposed at the upper end of the air duct portion and configured to cover the upper end of the air duct space; the lower end portion is disposed at the lower end of the air duct portion and configured to cover the lower end of the air duct space;

[0007] At least one through hole is provided on the upper end portion, and the through hole is configured to guide condensed water on the upper surface of the upper end portion to the surface of the air duct portion facing away from the air duct space or to the outside of the surface of the air duct portion facing away from the air duct space.

[0008] Optionally, the perforation includes a first perforation, and the first perforation is configured to guide the condensed water to a side wall surface of the air duct portion; or

[0009] The through holes include two first through holes, and the two first through holes are respectively configured to guide the condensed water to two side wall surfaces of the air channel portion.

[0010] Optionally, there are two air duct spaces, which are arranged in sequence along the transverse direction;

[0011] A first vertical space with an opening facing backward and extending in a vertical direction is provided between the two air duct spaces;

[0012] The perforations further include at least one second perforation configured to guide the condensed water onto a space wall of the first vertical space or into the first vertical space.

[0013] Optionally, there are two air duct spaces, which are arranged in sequence along the transverse direction;

[0014] A second vertical space with an opening facing forward and extending in the vertical direction is provided between the two air duct spaces;

[0015] The perforations further include at least one third perforation configured to guide the condensed water onto a space wall of the second vertical space or into the second vertical space.

[0016] Optionally, a stopper is provided on a surface of the air duct portion facing away from the air duct space;

[0017] The stopper is located on the flow path of the condensed water at the lower side of the corresponding perforation;

[0018] A first water collecting trough opening upward is arranged on the upper surface of the stopper, and a first outlet hole is arranged at the bottom of the first water collecting trough.

[0019] Optionally, a second water collecting trough is provided at the lower end or the lower end portion of the air duct portion, and a second outlet hole is provided on the side trough wall of the second water collecting trough; the second water collecting trough is configured to collect condensed water from the perforations on its upper side;

[0020] A water guide surface is provided on the lower end portion, and the water guide surface is configured to guide the condensed water flowing out of the second outlet hole.

[0021] Optionally, a first groove extending in an up-down direction is formed on the side wall surface of the air channel portion, and the first through-hole is configured to guide the condensed water to a groove surface of the first groove.

[0022] Optionally, the second outlet hole is arranged on the front surface of the air duct portion, and the second outlet hole is located on a lateral side of the outlet of the air duct space and on a lower side of the outlet of the air duct space;

[0023] A second groove arranged vertically is arranged on the front surface of the air channel portion, and the second outlet hole is arranged on the groove surface of the second groove; and the water guide surface is arranged at the lower end of the second groove.

[0024] Optionally, one or more water receiving grooves are provided on the upper surface of the lower end portion, configured to collect condensed water from at least the second perforation; and a third outlet hole is provided at the bottom of each water receiving groove;

[0025] A heat exchanger is also installed between the lower end and the upper end, and at least one of the water receiving grooves is configured to receive condensed water from the heat exchanger.

[0026] Optionally, the upper surface of the lower end portion is also provided with an end groove for accommodating the lower end of the crossflow wind wheel, and the end groove is provided with a fourth exit hole passing through the lower end portion; the lower end portion also has a motor mounting cavity for accommodating a motor for driving the crossflow wind wheel to rotate; the motor mounting cavity is located on the lower side of the end groove, and the fourth exit hole is located on the outer side of the motor mounting cavity.

[0027] Optionally, the second vertical space passes downward through the lower end portion.

[0028] Optionally, the air duct assembly further includes:

[0029] A first structural member, the first structural member comprising an integrally formed first end portion, a first main body portion, and a second end portion;

[0030] A second structural member, the second structural member comprising an integrally formed third end portion, a second main body portion, and a fourth end portion;

[0031] The second structural member is arranged at the front side of the first structural member; the first end and the third end constitute the upper end, the second end and the fourth end constitute the lower end, and the first main body and the second main body constitute the air duct;

[0032] The first end portion is provided with the through hole, and the second end portion is provided with the through hole.

[0033] Optionally, the space wall of the air duct space includes a volute profile surface matched with the crossflow impeller and a volute tongue extension surface arranged opposite to the volute profile surface; the air duct space is also used to install the volute tongue, and the front end of the volute tongue is located at the rear side of the volute tongue extension surface;

[0034] The two volute profile surfaces are arranged between the two volute tongue extension surfaces.

[0035] Optionally, a reinforcing rib is provided on the upper surface of the upper end portion, and the reinforcing rib is configured to enclose a rib space with a notch, so that water in the rib space flows to the corresponding perforation through the notch;

[0036] A mounting hole is arranged on the upper surface of the upper end portion, and a water baffle is arranged at the edge of the mounting hole.

[0037] The utility model also provides an indoor unit of an air conditioner, comprising a shell and an air duct component arranged in the shell, wherein the air duct component is any one of the above-mentioned air duct components.

[0038] In the air duct assembly and the indoor unit of the air conditioner of the utility model, the condensed water on the surface of the air duct part away from the air duct space or the outside of the surface of the air duct part away from the air duct space is very little affected by the air duct space, and similarly, the condensed water on the surface of the air duct part away from the air duct space or the outside of the surface of the air duct part away from the air duct space is also very little affected by the air duct space. Therefore, the condensed water will not deviate from the sliding trajectory due to the influence of the wind in the air duct space during the sliding process.

[0039] 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

[0040] 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:

[0041] Figure 1 is a schematic structural diagram of an air duct assembly according to an embodiment of the utility model;

[0042] Figure 2 is a schematic structural diagram of an air duct assembly according to another embodiment of the utility model;

[0043] Figure 3 yes Figure 2 A magnified view of middle;

[0044] Figure 4 is a schematic structural diagram of an air duct assembly according to another embodiment of the utility model;

[0045] Figure 5 yes Figure 4 Enlarged view of middle B;

[0046] Figure 6 is a schematic structural diagram of an air duct assembly according to another embodiment of the utility model;

[0047] Figure 7 yes Figure 6 Enlarged view of middle C;

[0048] Figure 8 is a schematic structural diagram of an air duct assembly according to another embodiment of the utility model;

[0049] Fig. 9 yes Figure 8 Enlarged view of middle D;

[0050] Fig.10 is a schematic structural diagram of an air duct assembly according to another embodiment of the utility model;

[0051] Fig.11 yes Fig.10 Enlarged view of E in the middle;

[0052] Fig.12 is a schematic structural diagram of a first structural member according to an embodiment of the utility model;

[0053] Fig.13 It is a schematic structural diagram of an air duct assembly, a heat exchanger and a water receiving tray according to an embodiment of the utility model. DETAILED DESCRIPTION

[0054] Refer to the following Figures 1 to 13 To describe the air duct assembly and the air conditioner indoor unit of 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. Therefore, 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.

[0055] 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 of ordinary skill 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.

[0056] 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.

[0057] 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.

[0058] Figure 1 is a schematic structural diagram of an air duct assembly according to an embodiment of the utility model, such as Figure 1 As shown, and refer to Figures 2 to 13 The embodiment of the utility model provides an air duct assembly 100, comprising an upper end portion 110, an air duct portion 120 and a lower end portion 130. The air duct portion 120 defines an air duct space 127. The upper end portion 110 is disposed at the upper end of the air duct portion 120, and is configured to cover the upper end of the air duct space 127. The lower end portion 130 is disposed at the lower end of the air duct portion 120, and is configured to cover the lower end of the air duct space 127. At least one perforation is disposed on the upper end portion 110, and the perforation is configured to guide condensed water on the upper surface of the upper end portion 110 to the surface of the air duct portion 120 that is away from the air duct space 127 or to the outside of the surface of the air duct portion 120 that is away from the air duct space 127.

[0059] In the air duct assembly 100 of the embodiment of the utility model, when there is condensed water on the upper surface of the upper end surface of the air duct assembly 100, the condensed water will reach the surface of the air duct portion 120 away from the air duct space 127 through the perforations of the upper end surface, and then slide down along the surface of the air duct portion 120 away from the air duct space 127. Alternatively, the condensed water will reach the outside of the surface of the air duct portion 120 away from the air duct space 127 through the perforations of the upper end surface, and then slide down. Since the condensed water on the surface of the air duct portion 120 away from the air duct space 127 or the outside of the surface of the air duct portion 120 away from the air duct space 127 is very little affected by the air duct space 127, the condensed water on the surface of the air duct portion 120 away from the air duct space 127 or the outside of the surface of the air duct portion 120 away from the air duct space 127 is also very little affected by the air duct space 127. Therefore, the condensed water will not deviate from its sliding trajectory due to the influence of the wind in the air duct space 127 during the sliding process.

[0060] When the air duct assembly 100 is used on the indoor unit of the air conditioner, a water collecting pan 300 is provided below the air duct assembly 100. Since the sliding trajectory of condensed water will not be deviated due to the influence of the wind in the air duct space 127 during the sliding process, the condensed water will not drip on the outside of the water collecting pan 300, so that the condensed water drips into the water collecting pan 300, thereby improving the user experience.

[0061] In some embodiments of the present invention, Figures 1 to 3 As shown, the perforations include a first perforation 111 , and the first perforation 111 is configured to guide condensed water to a side wall surface of the air channel portion 120 .

[0062] In this embodiment, condensed water flowing upward from the upper end surface of the air duct assembly 100 reaches the side surface of the air duct portion 120 through the first through hole 111 .

[0063] In some embodiments of the present invention, Figures 1 to 3 As shown, the perforations include two first perforations 111 , and the two first perforations 111 are respectively configured to guide condensed water to two side wall surfaces of the air channel portion 120 .

[0064] In this embodiment, part of the condensed water flowing upward on the upper end surface of the air duct assembly 100 passes through one of the first through holes 111 and reaches one of the side surfaces of the air duct portion 120. Another part of the condensed water passes through another first through hole 111 and reaches another side surface of the air duct portion 120. Since there are two first through holes 111, the discharge efficiency of the condensed water on the upper end surface is accelerated.

[0065] In some embodiments of the present invention, Figure 6 and Figure 7As shown, there are two air duct spaces 127, which are arranged in sequence along the transverse direction. A first vertical space 126 with an opening facing backward and extending along the vertical direction is provided between the two air duct spaces 127. The perforations further include at least one second perforation 113, which is configured to guide condensed water onto the space wall of the first vertical space 126 or into the first vertical space 126.

[0066] In this embodiment, part of the condensed water on the upper end surface of the air duct assembly 100 will reach the first vertical space 126 between the two air duct spaces 127 through the second perforations 113, and then slide down in the first vertical space 126. Alternatively, the condensed water slides down along the wall surface of the first vertical space 126. Since the first vertical space 126 is located between the two air duct spaces 127, that is, the wind in the air duct space 127 has little effect on the first vertical space 126, the condensed water in the first vertical space 126 will not be deflected due to the influence of the wind in the air duct space 127.

[0067] In some embodiments of the present invention, Figure 1 As shown, there are two air duct spaces 127, which are arranged in sequence along the transverse direction. A second vertical space 121 with an opening facing forward and extending along the vertical direction is provided between the two air duct spaces 127. The perforations further include at least one third perforation 112, which is configured to guide condensed water onto the space wall of the second vertical space 121 or into the second vertical space 121.

[0068] In this embodiment, part of the condensed water on the upper end surface of the air duct assembly 100 will reach the second vertical space 121 between the two air duct spaces 127 through the third perforations 112, and then slide down in the second vertical space 121. Alternatively, the condensed water slides down along the wall surface of the second vertical space 121. Since the second vertical space 121 is located between the two air duct spaces 127, that is, the wind in the air duct space 127 has little effect on the second vertical space 121, and the condensed water in the second vertical space 121 will not be deflected due to the influence of the wind in the air duct space 127.

[0069] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, a stopper is provided on the surface of the air duct portion 120 away from the air duct space 127. The stopper is located on the flow path of the condensed water on the lower side of the corresponding perforation. A first water collecting trough 122 opening upward is provided on the upper surface of the stopper, and a first outlet hole 1221 is provided at the bottom of the first water collecting trough 122.

[0070] In this embodiment, the condensed water flowing out from the upper end surface through the perforation enters the first water collecting tank 122, and then continues to flow downward through the first outlet hole 1221 at the bottom of the first water collecting tank 122. Due to the arrangement of the first water collecting tank 122, the flow path of the condensed water is further limited, so that the condensed water will not deviate during the downward flow.

[0071] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the lower end or lower end portion 130 of the air duct portion 120 is provided with a second water collecting trough 124, and a second outlet hole 1241 is provided on the side groove wall of the second water collecting trough 124. The second water collecting trough 124 is configured to collect condensed water from the perforations on its upper side. A water guide surface 131 is provided on the lower end portion 130, and the water guide surface 131 is configured to guide the condensed water flowing out of the second outlet hole 1241.

[0072] In this embodiment, the condensed water flowing out from the perforations on the upper side of the second water collecting trough 124 will enter the second water collecting trough 124, and then flow out from the second outlet holes 1241 on the side groove wall of the second water collecting trough 124. The condensed water flowing out from the second outlet holes 1241 reaches the water guide surface 131 of the lower end portion 130, and then flows along the water guide surface 131. Due to the arrangement of the second water collecting trough 124 and the water guide surface 131, the flow path of the condensed water flowing out from the perforations on the upper side of the second water collecting trough 124 is limited, so that the condensed water will not deviate during the flow process.

[0073] In some embodiments of the present invention, Figures 1 to 3 As shown, a first groove 123 extending in the up-down direction is formed on the side wall surface of the air channel portion 120 , and the first through hole 111 is configured to guide condensed water to the groove surface of the first groove 123 .

[0074] In this embodiment, the condensed water flowing out of the first perforation 111 reaches the groove surface of the first groove 123, and then flows downward along the groove surface of the first groove 123. The setting of the first groove 123 further limits the flow path of the condensed water flowing out of the first perforation 111, so that the condensed water flowing out of the first perforation 111 will not deviate during the flow process.

[0075] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the second outlet hole 1241 is provided on the front surface of the air duct portion 120, and the second outlet hole 1241 is located on the lateral side of the outlet of the air duct space 127, and is located on the lower side of the outlet of the air duct space 127. A second groove 125 is vertically provided on the front surface of the air duct portion 120, and the second outlet hole 1241 is provided on the groove surface of the second groove 125. The water guide surface 131 is provided at the lower end of the second groove 125.

[0076] It can be seen from the above embodiment that the condensed water entering the second water collecting groove 124 will flow out through the second outlet hole 1241. In this embodiment, the condensed water flowing out of the second outlet hole 1241 will reach the groove surface of the second groove 125, and then reach the water diversion surface 131 at the lower end of the second groove 125 along the groove surface of the second groove 125, and then flow along the water diversion surface 131. Due to the setting of the second groove 125, the flow path of the condensed water flowing out of the second outlet hole 1241 is defined, so that the condensed water can accurately reach the water diversion surface 131 and be drained by the water diversion surface 131 to prevent the condensed water from deflecting.

[0077] In some embodiments of the present invention, Figures 8 to 11 As shown, one or more water receiving grooves 133 are provided on the upper surface of the lower end portion 130, configured to collect condensed water from at least the second perforation 113. A third outlet hole 1331 is provided at the bottom of each water receiving groove 133. A heat exchanger 200 is also installed between the lower end portion 130 and the upper end portion 110, and at least one water receiving groove 133 is configured to receive condensed water from the heat exchanger 200.

[0078] In this embodiment, the condensed water flowing out through the second perforation 113 will enter the water receiving groove 133, and the condensed water generated by the heat exchanger 200 during the heat exchange process will also enter the water receiving groove 133, and the condensed water in the water receiving groove 133 will be discharged through the third outlet hole 1331. Since the water receiving groove 133 is arranged on the upper surface of the lower end portion 130, the second perforation 113 and the heat exchanger 200 are both arranged above the lower end portion 130, which ensures that the condensed water can directly fall into the water receiving groove 133. In addition, since there are multiple water receiving grooves 133, the area covering the upper surface of the lower end portion 130 is large, which ensures that the condensed water can directly fall into the water receiving groove 133 and will not fall outside the water receiving groove 133.

[0079] In some embodiments of the present invention, Figures 8 to 11 As shown, the upper surface of the lower end portion 130 is further provided with an end groove 132 for accommodating the lower end of the crossflow impeller, and the end groove 132 is provided with a fourth outlet hole 1321 penetrating the lower end portion 130. The lower end portion 130 also has a motor installation cavity 140 for accommodating a motor for driving the crossflow impeller to rotate. The motor installation cavity 140 is located at the lower side of the end groove 132, and the fourth outlet hole 1321 is located at the outer side of the motor installation cavity 140.

[0080] In this embodiment, the lower end of the crossflow impeller is installed in the end groove 132, and the motor is installed in the motor installation cavity 140 located at the lower side of the end groove 132. Since the fourth outlet hole 1321 on the end groove 132 is located outside the motor installation cavity 140, that is, the condensed water flowing out of the fourth outlet hole 1321 will not flow into the motor installation cavity 140, ensuring that the condensed water does not contact the motor, thereby preventing the occurrence of electric shock.

[0081] In some embodiments of the present invention, Figure 1 As shown, the second vertical space 121 penetrates downwardly through the lower end portion 130 .

[0082] From the above embodiment, it can be known that there is condensed water in the second vertical space 121. In this embodiment, the second vertical space 121 passes through the lower end 130, and the condensed water in the second vertical space 121 will not adhere to the lower end 130, and can be directly discharged through the lower end 130.

[0083] In some embodiments of the present invention, Figure 2 As shown, the air duct assembly 100 also includes a first structural member and a second structural member. The first structural member includes an integrally formed first end 115, a first main body, and a second end 134. The second structural member includes an integrally formed third end 114, a second main body, and a fourth end 135. The second structural member is arranged at the front side of the first structural member. The first end 115 and the third end 114 constitute the upper end 110, the second end 134 and the fourth end 135 constitute the lower end 130, and the first main body and the second main body constitute the air duct portion 120. A perforation is provided on the first end 115, and a perforation is provided on the second end 134.

[0084] In this embodiment, the condensed water on the first end 115 flows toward the second end 134 and the fourth end 135 through the through hole on the first end 115. The condensed water on the second end 134 flows toward the second end 134 and the fourth end 135 through the through hole on the second end 134. Since the first end 115, the first main body and the second end 134 are integrally formed, and the third end 114, the second main body and the fourth end 135 are integrally formed, in the process of producing the air duct assembly 100, the first structural member can be integrally formed, and the second structural member can be integrally formed, which simplifies the production process and ensures production efficiency.

[0085] In some embodiments of the present invention, Fig.12 As shown, the space wall of the air duct space 127 includes a volute profile 128 that matches the crossflow impeller and a volute tongue extension surface 129 that is arranged opposite to the volute profile 128. The air duct space 127 is also used to install the volute tongue, and the front end of the volute tongue is located at the rear side of the volute tongue extension surface 129. The two volute profiles 128 are arranged between the two volute tongue extension surfaces 129.

[0086] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the first through hole and the third through hole are arranged on the first end 115. The second through hole is arranged on the third end 114.

[0087] In some embodiments of the present invention, Figure 1As shown, a reinforcing rib is provided on the upper surface of the upper end portion 110, and the reinforcing rib is configured to enclose a rib space with a notch, so that water in the rib space flows to the corresponding perforation through the notch. A mounting hole is provided on the upper surface of the upper end portion 110, and a water retaining plate is provided at the edge of the mounting hole.

[0088] In this embodiment, when condensed water is attached to the upper end 110 of the air duct assembly 100, the condensed water in the rib space will flow from the notch on the reinforcing rib to the perforation corresponding to the notch, and then flow downward from the perforation. The arrangement of the reinforcing rib limits the flow path of the condensed water at the upper end 110, so that the condensed water can be discharged smoothly through the perforation. In addition, a water baffle is arranged at the edge of the mounting hole of the upper end 110, and the arrangement of the water baffle can prevent condensed water from entering the mounting hole.

[0089] like Fig.13 As shown, an embodiment of the utility model further provides an indoor unit of an air conditioner, the indoor unit of the air conditioner comprises a shell and an air duct assembly 100 arranged in the shell, and the air duct assembly 100 is the air duct assembly 100 in any of the above embodiments.

[0090] A water receiving tray 300 is provided below the air duct assembly 100. In this embodiment, the air duct assembly 100 is installed inside the housing. When the indoor unit of the air conditioner is running, the condensed water at the upper end 110 of the air duct assembly 100 will be discharged through the perforations of the upper end 110, and then slide down along the surface of the air duct portion 120 away from the air duct space 127, or the condensed water will reach the outside of the surface of the air duct portion 120 away from the air duct space 127 through the perforations of the upper end surface, and then slide down. Since the sliding area of ​​the air duct assembly 100 for condensed water is very little affected by the wind in the air duct space 127, even if the distance between the upper end 110 and the water receiving tray 300 below the air duct assembly 100 is far, the condensed water will not deviate during the sliding process, so that the condensed water can slide smoothly into the water receiving tray 300. The condensed water will not contact the electrical components of the indoor unit of the air conditioner outside the water receiving tray 300, thereby preventing the occurrence of leakage events and improving safety.

[0091] 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, characterized in that: It includes an upper end, an air duct portion and a lower end; The air duct portion defines an air duct space; the upper end portion is disposed at the upper end of the air duct portion and configured to cover the upper end of the air duct space; the lower end portion is disposed at the lower end of the air duct portion and configured to cover the lower end of the air duct space; At least one through hole is provided on the upper end portion, and the through hole is configured to guide condensed water on the upper surface of the upper end portion to the surface of the air duct portion facing away from the air duct space or to the outside of the surface of the air duct portion facing away from the air duct space.

2. The air duct assembly according to claim 1, characterized in that: The perforations include first perforations, and the first perforations are configured to guide the condensed water to a side wall surface of the air channel portion; or The through holes include two first through holes, and the two first through holes are respectively configured to guide the condensed water to two side wall surfaces of the air channel portion.

3. The air duct assembly according to claim 1, characterized in that: There are two air duct spaces, which are arranged in sequence along the transverse direction; A first vertical space with an opening facing backward and extending in a vertical direction is provided between the two air duct spaces; The perforations further include at least one second perforation configured to guide the condensed water onto a space wall of the first vertical space or into the first vertical space.

4. The air duct assembly according to claim 1, characterized in that: There are two air duct spaces, which are arranged in sequence along the transverse direction; A second vertical space with an opening facing forward and extending in the vertical direction is provided between the two air duct spaces; The perforations further include at least one third perforation configured to guide the condensed water onto a space wall of the second vertical space or into the second vertical space.

5. The air duct assembly according to claim 1, characterized in that: A stopper is provided on the surface of the air duct portion facing away from the air duct space; The stopper is located on the flow path of the condensed water at the lower side of the corresponding perforation; A first water collecting trough opening upward is arranged on the upper surface of the stopper, and a first outlet hole is arranged at the bottom of the first water collecting trough.

6. The air duct assembly according to claim 2, characterized in that: A second water collecting trough is provided at the lower end or the lower end portion of the air channel portion, and a second outlet hole is provided on the side trough wall of the second water collecting trough; the second water collecting trough is configured to collect condensed water from the perforations on the upper side thereof; A water guide surface is provided on the lower end portion, and the water guide surface is configured to guide the condensed water flowing out of the second outlet hole.

7. The air duct assembly according to claim 2, characterized in that: A first groove extending in a vertical direction is formed on the side wall surface of the air channel portion, and the first through hole is configured to guide the condensed water to a groove surface of the first groove.

8. The air duct assembly according to claim 6, characterized in that: The second outlet hole is arranged on the front surface of the air duct portion, and the second outlet hole is located on a lateral side of the outlet of the air duct space and on a lower side of the outlet of the air duct space; A second groove arranged vertically is arranged on the front surface of the air channel portion, and the second outlet hole is arranged on the groove surface of the second groove; and the water guide surface is arranged at the lower end of the second groove.

9. The air duct assembly according to claim 3, characterized in that: One or more water receiving grooves are provided on the upper surface of the lower end portion, configured to collect condensed water from at least the second perforation; a third outlet hole is provided at the bottom of each water receiving groove; A heat exchanger is also installed between the lower end and the upper end, and at least one of the water receiving grooves is configured to receive condensed water from the heat exchanger.

10. The air duct assembly according to claim 9, characterized in that: The upper surface of the lower end portion is also provided with an end groove for accommodating the lower end of the crossflow wind wheel, and the end groove is provided with a fourth exit hole passing through the lower end portion; the lower end portion also has a motor mounting cavity for accommodating a motor for driving the crossflow wind wheel to rotate; the motor mounting cavity is located on the lower side of the end groove, and the fourth exit hole is located on the outer side of the motor mounting cavity.

11. The air duct assembly according to claim 4, characterized in that: The second vertical space passes downward through the lower end portion.

12. The air duct assembly according to claim 1, characterized in that: Also includes: A first structural member, the first structural member comprising an integrally formed first end portion, a first main body portion, and a second end portion; A second structural member, the second structural member comprising an integrally formed third end portion, a second main body portion, and a fourth end portion; The second structural member is arranged at the front side of the first structural member; the first end and the third end constitute the upper end, the second end and the fourth end constitute the lower end, and the first main body and the second main body constitute the air duct; The first end portion is provided with the through hole, and the second end portion is provided with the through hole.

13. The air duct assembly according to claim 3 or 4, characterized in that: The space wall of the air duct space includes a volute profile surface matched with the crossflow impeller and a volute tongue extension surface arranged opposite to the volute profile surface; the air duct space is also used to install the volute tongue, and the front end of the volute tongue is located at the rear side of the volute tongue extension surface; The two volute profile surfaces are arranged between the two volute tongue extension surfaces.

14. The air duct assembly according to claim 1, characterized in that: A reinforcing rib is provided on the upper surface of the upper end portion, and the reinforcing rib is configured to enclose a rib space with a notch, so that water in the rib space flows to the corresponding perforation through the notch; A mounting hole is arranged on the upper surface of the upper end portion, and a water baffle is arranged at the edge of the mounting hole.

15. An air conditioner indoor unit, characterized in that: The invention comprises a shell and an air duct assembly arranged in the shell, wherein the air duct assembly is the air duct assembly according to any one of claims 1 to 14.

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