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

Abstract

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit and an air duct assembly used for the air conditioner indoor unit, and aims at solving at least one of the problems that a connecting structure of an air duct front plate and an evaporator of an existing air conditioner indoor unit is prone to generating condensation water, low in installation efficiency and high in cost. In order to achieve the purpose, the air duct assembly for the air conditioner indoor unit is provided, the air duct assembly can be connected with an evaporator of the air conditioner indoor unit, the air duct assembly comprises an air duct main body component, and the air duct main body component is provided with a non-closed containing space used for containing a draught fan of the air conditioner indoor unit. The air duct main body component comprises a main body part and a connecting part, the main body part is connected with the evaporator through the connecting part, and the connecting part and the main body part are integrally formed in an injection molding mode. According to the air duct assembly, the connecting part and the main body part are integrally formed through injection molding, so that the connecting part replaces a connecting plate made of a metal plate material in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and specifically provides an air conditioner indoor unit and an air duct component used for the air conditioner indoor unit. Background Art

[0002] Air conditioning refers to equipment that artificially regulates and controls the ambient air within a building or structure. The air conditioning system primarily consists of a compressor, evaporator, throttling device, and condenser, all connected by piping to form a refrigerant circulation loop.

[0003] A traditional household air conditioner consists of an indoor unit and an outdoor unit, with the evaporator installed inside the air duct of the indoor unit. A connecting plate connects the duct front panel to the evaporator, separating the interior of the duct from the exterior. To ensure the stability and durability of the connection between the duct front panel and the evaporator, the connecting plate is typically made of high-strength sheet metal.

[0004] However, sheet metal has excellent thermal conductivity. During the air conditioner's cooling process, the connection plate's temperature drops due to contact with the evaporator, causing condensation on the surface. To prevent this, thermal insulation pads are placed on the connection plate to prevent condensation. Furthermore, the connection between the duct front plate and the evaporator via the connection plate requires a large number of fasteners, which not only reduces installation efficiency but also increases overall costs. Utility Model Content

[0005] The utility model aims to solve the above technical problems, that is, to solve at least one of the problems that the connection structure between the air duct front plate and the evaporator of the existing air conditioner indoor unit is prone to generate condensation water, has low installation efficiency and high cost.

[0006] In a first aspect, the utility model provides an air duct assembly for an air-conditioning indoor unit, wherein the air duct assembly can be connected to the evaporator of the air-conditioning indoor unit, and the air duct assembly includes an air duct main body component, wherein the air duct main body component is configured with a non-enclosed accommodating space for accommodating the fan of the air-conditioning indoor unit, and the air duct main body component includes a main body and a connecting part, wherein the main body is connected to the evaporator through the connecting part, and the connecting part and the main body are integrally injection-molded.

[0007] It is understandable that the connecting portion and the main body are respectively made of thermoplastic plastics, such as ABS plastic (Acrylonitrile Butadiene Styrene plastic) or PS plastic (Polystyrene plastic).

[0008] The air duct assembly of the present invention is designed to replace the connecting plate made of sheet metal material in the prior art by integrally injection-molding the connecting portion and the main body. Compared to the connecting plate made of sheet metal material in the prior art, the connecting portion of the present invention, which is made of plastic material, has lower thermal conductivity and a certain heat-insulating effect. It is not easily affected by the low temperature of the evaporator, and is not easy to generate condensation water. Therefore, there is no need to additionally attach a heat-insulating pad on its surface, which reduces the installation cost of the heat-insulating pad. At the same time, the air duct front plate in the prior art needs to be connected to the connecting plate through corresponding fasteners first, and then the connecting plate is connected to the evaporator through corresponding fasteners. Compared to the installation method of the air duct front plate in the prior art, the connecting portion and the main body in the solution of the present invention are integrally injection-molded, which omits the installation step of the connecting plate, improves installation efficiency, and reduces installation cost.

[0009] In some feasible embodiments of the above-mentioned air duct assembly for an air conditioner indoor unit, the air duct main body component further includes a volute tongue portion, which is arranged on a side of the main body close to the air outlet of the air duct assembly, and the volute tongue portion is integrally injection molded with the main body.

[0010] It is understandable that the volute tongue portion, like the main body portion, can be made of thermoplastic plastic, such as ABS plastic or PS plastic.

[0011] The utility model makes the main body, the connecting part and the volute tongue part integrally injection-molded. Compared with the air duct front plate and the connecting plate structure in the prior art, the air duct main body component of the utility model realizes the integration of the air duct front plate and the connecting plate in the prior art. Its overall cross-section is larger, the overall structural strength is better, and it is more difficult to deform, thereby reducing the possibility of deformation of the air duct main body component.

[0012] In some feasible implementations of the above-mentioned air duct assembly for an air conditioner indoor unit, the cross-section of the volute tongue portion is U-shaped.

[0013] Through the above arrangement, the ability of the volute tongue portion to resist bending deformation is made stronger, and the structural strength of the volute tongue portion is further enhanced.

[0014] In some feasible embodiments of the above-mentioned air duct assembly for an air conditioner indoor unit, the connecting portion has a connecting hole for connecting to the evaporator, and the connecting hole is suitable for inserting a fastener so that the connecting portion is connected to the evaporator through the fastener.

[0015] In some feasible embodiments of the above-mentioned air duct assembly for an air conditioner indoor unit, the connecting portion has a connecting lug, which is inclined in a direction away from the connecting portion when viewed in a vertical direction, and the connecting hole is provided on the connecting lug.

[0016] Through the above-mentioned arrangement, there is a certain installation space between the connecting hole on the connecting lug and the rest of the connecting part, which makes it convenient for the staff to insert the fastener into the connecting hole and connect it to the evaporator, effectively preventing interference problems, reducing the difficulty of installation, and thus helping to improve installation efficiency.

[0017] In some feasible implementations of the above-mentioned air duct assembly for an air conditioner indoor unit, the connecting portion is provided with a flange structure, and the connecting lug is provided on the flange structure.

[0018] Through the above arrangement, the structural strength and rigidity of the connecting portion can be enhanced, and the possibility of deformation of the connecting portion can be reduced.

[0019] In some feasible implementations of the above-mentioned air duct assembly for an air conditioner indoor unit, a plurality of reinforcing ribs are arranged at intervals along the vertical direction on the connecting portion.

[0020] Through the above arrangement, the structural strength and rigidity of the connection portion can be enhanced, the possibility of deformation of the connection portion is reduced, and the connection plate made of sheet metal material in the prior art can be better replaced.

[0021] In some feasible implementations of the above-mentioned air duct assembly for an air conditioner indoor unit, the connecting portion has wiring holes arranged at intervals along the vertical direction.

[0022] Since the connecting plate in the prior art is made of sheet metal, the cost and difficulty of setting wiring holes are high. Therefore, the wiring holes in the prior art are usually set on the front plate of the air duct or other components. Compared with the above-mentioned prior art solutions, the wiring holes of the present invention are set on the connecting part, which not only simplifies the processing technology of the wiring holes and reduces the manufacturing cost, but also greatly improves the structural design flexibility of the main components of the air duct. Such a design can better meet the needs of electrical connection, making the assembly and maintenance of the air-conditioning indoor unit more convenient.

[0023] In some feasible implementations of the above-mentioned air duct assembly for an air conditioner indoor unit, the connecting portion has buckles arranged at intervals along the vertical direction, and the buckles are used to connect to the air outlet frame of the air conditioner indoor unit.

[0024] Since the connecting plate in the prior art is made of sheet metal material, the cost and difficulty of setting the clips are high. Therefore, the clips in the prior art are usually set on the front plate of the air duct or other components. Compared with the above-mentioned prior art solutions, the clips of the present invention can be set on the connecting part, which not only simplifies the processing technology of the clips and reduces the manufacturing cost, but also greatly improves the structural design flexibility of the air duct main component, making the assembly and maintenance of the air conditioner indoor unit more convenient.

[0025] In a second aspect, the present invention provides an air-conditioning indoor unit, which includes the air duct assembly for the air-conditioning indoor unit described in any one of the above technical solutions.

[0026] Since the above-mentioned air-conditioning indoor unit is equipped with the aforementioned air duct assembly for the air-conditioning indoor unit, it has all the technical effects that can be obtained by the aforementioned air duct assembly for the air-conditioning indoor unit, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0028] Figure 1 It is an assembly drawing of the air duct component and the evaporator of the utility model;

[0029] Figure 2 It is an exploded view of the air duct assembly and evaporator of the utility model;

[0030] Figure 3 This is one of the structural diagrams of the air duct assembly of the present utility model;

[0031] Figure 4 This is the second structural diagram of the air duct assembly of the present invention, wherein some structures are omitted;

[0032] Figure 5 yes Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0033] Figure 6 It is a top view of the air duct assembly of the present invention, wherein part of the structure is cut away;

[0034] Figure 7 yes Figure 6 A partial enlarged schematic diagram of point B in the middle.

[0035] List of reference numerals:

[0036] 1-air duct assembly; 11-air duct main component; 111-main body; 112-connecting part; 1121-connecting lug; 1122-connecting hole; 1123-reinforcement rib; 1124-flanged structure; 1125-wiring hole; 1126-clip; 113-snail; 2-evaporator. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, removable connections, or integral connections; they can refer to mechanical connections, direct connections, indirect connections through an intermediary, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

[0040] like Figure 1 and Figure 2 As shown, the embodiment of the present invention provides a vertical air-conditioning indoor unit, which includes a fan (not shown), an air duct assembly 1, an evaporator 2, etc. The air duct assembly 1 is connected to the evaporator 2. Figure 3 As shown, the duct assembly 1 includes a main duct component 11 and other auxiliary components connected to the main duct component. The main duct component 11 is constructed with a non-enclosed storage space for accommodating the fan of the air conditioner indoor unit. The fan can be installed in the storage space. The air outlet of the duct assembly 1 is located on the side of the main duct component 11 and communicates with the storage space. Driven by the fan, the air cooled by the evaporator 2 in the storage space is transported to the exterior of the vertical air conditioner indoor unit through the air outlet.

[0041] like Figure 4 and Figure 5 As shown, the air duct main body component 11 includes a main body 111 and a connecting portion 112. The main body 111 is connected to the evaporator 2 via the connecting portion 112. The connecting portion 112 and the main body 111 are integrally injection molded. Specifically, the connecting portion 112 is a plate-like structure and is disposed on a side of the main body 111 away from the air outlet of the air duct assembly 1. The connecting portion 112 and the main body 111 are each made of thermoplastic plastic, specifically ABS plastic (Acrylonitrile Butadiene Styrene plastic) or PS plastic (Polystyrene plastic).

[0042] It should be noted that ABS plastic is an engineering plastic made by copolymerizing three monomers: acrylonitrile, butadiene, and styrene. It is understandable that ABS plastic is a common thermoplastic plastic and will not be described in detail here.

[0043] It should be noted that PS plastic, also known as polystyrene, is a thermoplastic plastic made by polymerizing styrene monomers. It is understandable that PS plastic is a common thermoplastic plastic and will not be described in detail here.

[0044] The air duct assembly 1 in the embodiment of the present invention is formed by integrally injection-molding the connecting portion 112 and the main body 111, thereby replacing the connecting plate made of sheet metal in the prior art. Compared to the connecting plate made of sheet metal in the prior art, the connecting portion 112 made of plastic material in the embodiment of the present invention has lower thermal conductivity and has a certain thermal insulation effect. It is not easily affected by the low temperature of the evaporator 2, and thus is not easy to generate condensation water. Therefore, there is no need to attach an additional thermal insulation pad to its surface, thereby reducing the installation cost of the thermal insulation pad. At the same time, the air duct front plate in the prior art needs to be connected to the connecting plate by corresponding fasteners first, and then the connecting plate is connected to the evaporator 2 by corresponding fasteners. Compared to the installation method of the air duct front plate in the prior art, the connecting portion 112 in the embodiment of the present invention is integrally injection-molded with the main body 111, omitting the installation step of the connecting plate, improving installation efficiency, and reducing installation cost.

[0045] Continue to refer Figure 4 and Figure 5 The air duct main body component 11 further includes a volute tongue portion 113, which is disposed on a side of the main body portion 111 close to the air outlet of the air duct assembly 1. The volute tongue portion 113 is integrally injection-molded with the main body portion 111. Specifically, the volute tongue portion 113, like the main body portion 111, can be made of thermoplastic plastic, specifically ABS plastic or PS plastic.

[0046] The embodiment of the present utility model makes the main body 111, the connecting part 112 and the volute tongue part 113 integrally injection-molded. Compared with the air duct front plate and connecting plate structure in the prior art, the air duct main body component 11 of the embodiment of the present utility model integrates the functions of the air duct front plate and the connecting plate, and integrates the function of the volute tongue. Its overall cross-section is larger, the overall structural strength is better, and it is more difficult to deform, thereby reducing the possibility of deformation of the air duct main body component 11.

[0047] Furthermore, if Figure 6 and Figure 7As shown, the cross-section of the volute tongue portion 113 is U-shaped. Through the above arrangement, the volute tongue portion 113 has a stronger ability to resist bending deformation, and the structural strength of the volute tongue portion 113 is further enhanced.

[0048] Further, continue to refer to Figure 6 and Figure 7 The cross-section of the main body 111 near the air outlet of the air duct assembly 1 is a bent structure. Through the above arrangement, the main body 111 has a stronger ability to resist bending deformation, further enhancing the overall structural strength of the air duct main body component 11.

[0049] like Figure 5 and Figure 7 As shown, the connecting portion 112 has a connecting hole 1122 for connecting to the evaporator 2. The connecting hole 1122 is suitable for inserting a fastener so that the connecting portion 112 and the evaporator 2 are connected via the fastener. Through the above arrangement, the air duct main body member 11 and the evaporator 2 can be connected via the connecting hole 1122 of the connecting portion 112 and the fastener.

[0050] Further, continue to refer to Figure 5 and Figure 7 The connecting portion 112 has a connecting lug 1121. When viewed vertically, the connecting lug 1121 is inclined away from the connecting portion 112. A connecting hole 1122 is provided on the connecting lug 1121. This arrangement creates a certain amount of installation space between the connecting hole 1122 on the connecting lug 1121 and the rest of the connecting portion 112. This facilitates insertion of the fastener into the connecting hole 1122 and connection to the evaporator 2, effectively reducing interference issues and reducing installation difficulty, thereby improving installation efficiency.

[0051] Further, continue to refer to Figure 5 The connecting portion 112 is provided with a flange structure 1124, and the connecting lug 1121 is provided on the flange structure 1124. Through the above arrangement, the structural strength and rigidity of the connecting portion 112 can be enhanced, and the possibility of deformation of the connecting portion 112 is reduced.

[0052] Continue to refer Figure 5 The connecting portion 112 is provided with a plurality of reinforcing ribs 1123 arranged vertically and spaced apart. Specifically, the plurality of reinforcing ribs 1123 extend substantially horizontally. This arrangement enhances the structural strength and rigidity of the connecting portion 112, reduces the possibility of deformation of the connecting portion 112, and provides a better alternative to the connecting plates made of sheet metal in the prior art.

[0053] Continue to refer Figure 5The connecting portion 112 has wiring holes 1125 spaced apart in the vertical direction. In the prior art, since the connecting plate is made of sheet metal, it is costly and difficult to provide wiring holes. Therefore, the wiring holes in the prior art are usually provided on the front plate of the air duct or other components. Compared with the above-mentioned prior art solutions, the wiring holes 1125 in the embodiment of the present invention are provided on the connecting portion 112. This not only simplifies the processing technology of the wiring holes 1125 and reduces manufacturing costs, but also greatly improves the structural design flexibility of the air duct main component 11. Such a design can better meet the requirements of electrical connection, making the assembly and maintenance of the vertical air conditioner indoor unit more convenient.

[0054] Continue to refer Figure 5 The connecting portion 112 has clips 1126 arranged at intervals along the vertical direction. The clips 1126 are used to connect to the air outlet frame of the vertical air conditioner indoor unit. Since the connecting plate in the prior art is made of sheet metal, the cost and difficulty of setting the clips are relatively high. Therefore, the clips in the prior art are usually set on the front plate of the air duct or other components. Compared with the above-mentioned prior art solutions, the clips 1126 of the embodiment of the utility model can be set on the connecting portion 112. This not only simplifies the processing technology of the clips 1126 and reduces manufacturing costs, but also greatly improves the structural design flexibility of the air duct main component 11, making the assembly and maintenance of the vertical air conditioner indoor unit more convenient.

[0055] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. An air duct assembly for an air conditioner indoor unit, wherein the air duct assembly can be connected to an evaporator of the air conditioner indoor unit, characterized in that: The air duct assembly includes an air duct main body component, which is constructed with a non-enclosed accommodating space for accommodating a fan of an air conditioner indoor unit. The air duct main body component includes a main body and a connecting part. The main body is connected to the evaporator through the connecting part, and the connecting part and the main body are integrally injection molded.

2. The air duct assembly for an air conditioner indoor unit according to claim 1, characterized in that: The air duct main body component further includes a volute tongue portion, which is arranged on a side of the main body portion close to the air outlet of the air duct assembly, and the volute tongue portion is integrally injection-molded with the main body portion.

3. The air duct assembly for an air conditioner indoor unit according to claim 2, characterized in that: The cross-section of the volute tongue portion is U-shaped.

4. The air duct assembly for an air conditioner indoor unit according to claim 1, characterized in that: The connecting portion has a connecting hole for connecting with the evaporator, and the connecting hole is suitable for inserting a fastener so that the connecting portion and the evaporator are connected through the fastener.

5. The air duct assembly for an air conditioner indoor unit according to claim 4, characterized in that: The connecting portion has a connecting lug. When viewed in a vertical direction, the connecting lug is inclined in a direction away from the connecting portion. The connecting hole is provided on the connecting lug.

6. The air duct assembly for an air conditioner indoor unit according to claim 5, characterized in that: The connecting portion is provided with a flanging structure, and the connecting lug is provided on the flanging structure.

7. The air duct assembly for an air conditioner indoor unit according to claim 1, characterized in that: A plurality of reinforcing ribs are arranged at intervals along the vertical direction on the connecting portion.

8. The air duct assembly for an air conditioner indoor unit according to claim 1, characterized in that: The connecting portion has wiring holes arranged at intervals along the vertical direction.

9. The air duct assembly for an air conditioner indoor unit according to claim 1, characterized in that: The connecting portion has buckles arranged at intervals along the vertical direction, and the buckles are used to be connected to the air outlet frame of the air conditioner indoor unit.

10. An air conditioner indoor unit, characterized in that: The air conditioner indoor unit comprises the air duct assembly for an air conditioner indoor unit according to any one of claims 1 to 9.

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