Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner, which comprises an air duct component, a heat exchanger and a heat exchanger, a first air guide face is formed on the basic air duct, and a first splicing structure used for being connected with the additional air duct is arranged at one end of the basic air duct in the transverse direction. The manufacturing or improvement cost of the air conditioner indoor unit is low.

Description

Technical Field

[0001] This utility model relates to the technical field of air conditioners, and in particular to an indoor air conditioner unit. Background Technology

[0002] As people's living standards improve, their demands for indoor air quality are increasing. Fan coil air conditioners are a commonly used type of air handling equipment. These air conditioners have a ductwork frame, which is currently molded as a single piece using injection molding. Manufacturing indoor units of various sizes requires creating injection molds of different dimensions to mold ductwork frames of varying sizes to fit different air conditioner sizes. Alternatively, when modifying an indoor unit to a different size, the original ductwork frame cannot be installed in the modified unit, necessitating the redesign and production of a new ductwork frame of the corresponding size. This results in excessively high manufacturing or modification costs for the air conditioner. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an air conditioning indoor unit that overcomes or at least partially solves the above problems.

[0004] One objective of this invention is to solve the problem of excessively high manufacturing or modification costs for existing air conditioners.

[0005] Specifically, this utility model proposes an indoor unit for an air conditioner.

[0006] The indoor unit of this utility model of air conditioner includes: an air duct assembly, including a basic air duct; the basic air duct forms a first air guiding surface, and a first splicing structure for connecting an additional air duct is provided at one end of the basic air duct in the horizontal direction.

[0007] In some embodiments, the first splicing structure includes one or more first slots disposed at one end of the basic air duct in the lateral direction; or, the first splicing structure includes one or more first buckles disposed at one end of the basic air duct in the lateral direction.

[0008] In some embodiments, the air duct assembly further includes: an additional air duct having a second air guide surface located on one side of the basic air duct in the lateral direction; and one end of the first air guide surface being connected to a corresponding end of the second air guide surface; the additional air duct having a second splicing structure at the corresponding end of the basic air duct; and the second splicing structure being spliced ​​and connected to the first splicing structure.

[0009] In some embodiments, when the first slot is provided at one end of the basic air duct, the second splicing structure includes one or more second buckles provided at one end of the additional air duct; the second buckles are snapped into the first slot; when the first buckle is provided at one end of the basic air duct, the second splicing structure includes one or more second slots provided at one end of the additional air duct; the first buckle is snapped into the second slot.

[0010] In some embodiments, the first splicing structure further includes a plurality of positioning slots disposed at one end of the basic air duct; the second splicing structure further includes a plurality of positioning posts disposed at one end of the additional air duct, wherein the plurality of positioning posts are inserted into the plurality of positioning slots in a corresponding manner.

[0011] In some embodiments, the first splicing structure further includes a sealing groove disposed at one end of the basic air duct; the second splicing structure further includes a sealing protrusion disposed at one end of the additional air duct, the sealing protrusion being inserted into the sealing groove.

[0012] In some embodiments, both the first air guide surface and the second air guide surface are arc surfaces; the outer contour of the cross-section of the sealing groove and the outer contour of the cross-section of the sealing protrusion are both arc shapes adapted to the arc surfaces.

[0013] In some embodiments, there are multiple additional air ducts, and the basic air duct and the multiple additional air ducts are sequentially spliced ​​together in the horizontal direction.

[0014] In some embodiments, the additional air duct is provided with a third splicing structure at the other end in the lateral direction; the third splicing structure is consistent with the structure of the first splicing structure; one of the additional air ducts is connected to the third splicing structure of the adjacent additional air duct through its second splicing structure.

[0015] In some embodiments, the ratio of the dimension of the basic air duct in the lateral direction to the dimension of the additional air duct in the lateral direction is 1.5-3.

[0016] In this embodiment of the air conditioner indoor unit, the basic air duct of the air duct assembly has a first splicing structure at one end in the horizontal direction, allowing additional air ducts to be spliced ​​onto the basic air duct through the first splicing structure. On one hand, the basic air duct can be connected to the additional air ducts through the first splicing structure, enabling the basic and additional air ducts to be combined to form air duct assemblies of multiple sizes, thus eliminating the need to manufacture multiple molds of corresponding sizes. On the other hand, when modifying the air conditioner indoor unit, the original basic and / or additional air ducts in the air conditioner indoor unit can still be reused, and by increasing or decreasing the number of additional air ducts spliced ​​with the basic air duct, air duct assemblies adapted to the size of the modified air conditioner indoor unit can be formed without manufacturing new injection molds. Therefore, the manufacturing or modification cost of the air conditioner indoor unit of this embodiment of the invention is greatly reduced, thus solving the problem of excessively high manufacturing or modification costs for air conditioners.

[0017] The above and other objects, advantages and features of this utility model will become more apparent to those skilled in the art from the following detailed description of specific embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0018] The following sections will describe some specific embodiments of the present invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or components. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0019] Figure 1 This is a schematic structural diagram of the air duct assembly according to an embodiment of the utility model;

[0020] Figure 2 This is a schematic structural diagram of the air duct assembly according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic structural diagram of the air duct assembly according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the basic air duct of a utility model embodiment;

[0023] Figure 5 This is a schematic structural diagram of the basic air duct of a utility model embodiment;

[0024] Figure 6 This is a schematic structural diagram of the additional air duct in an embodiment of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the additional air duct in an embodiment of the utility model;

[0026] Figure 8 This is a schematic structural diagram of the indoor unit of an air conditioner according to an embodiment of the utility model;

[0027] Figure 9 This is a schematic structural diagram of the indoor unit of an air conditioner according to an embodiment of the utility model.

[0028] Figure label:

[0029] Air conditioner indoor unit 10;

[0030] Air duct assembly 100; basic air duct 110; first air guide surface 111; first splicing structure 120; first slot 121; positioning slot 122; sealing slot 123; auxiliary air duct 130; second air guide surface 131; second splicing structure 140; second buckle 141; positioning post 142; sealing protrusion 143; third splicing structure 150;

[0031] Housing 200; Air inlet 210; Air outlet 220;

[0032] Fan 300; heat exchanger 400. Detailed Implementation

[0033] The following reference Figures 1 to 9 This description pertains to an indoor air conditioning unit according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0034] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The air conditioner indoor unit 10 of this utility model is described below with reference to the accompanying drawings.

[0038] like Figures 1-9 As shown, the indoor unit 10 of the air conditioner according to this embodiment of the present invention includes a housing 200, a heat exchanger 400, a fan 300, and an air duct assembly 100. The housing 200 defines an air inlet 210 and an air outlet 220. The heat exchanger 400, the fan 300, and the air duct assembly 100 are all disposed within the housing 200. The fan 300 is used to promote the formation of an airflow that enters the housing 200 through the air inlet 210 and is blown out through the air outlet 220. The air duct assembly 100 cooperates with the fan 300 to guide the airflow from the air inlet 210 to the air outlet 220. The fan 300 is disposed upstream of the heat exchanger 400, which is used for heat exchange with the airflow.

[0039] The air duct assembly 100 of this utility model embodiment is described in detail below with reference to the accompanying drawings.

[0040] The air duct assembly 100 includes a basic air duct 110, which has a first air guiding surface 111. One end of the basic air duct 110 in the lateral direction is provided with a first splicing structure 120 for connecting an additional air duct 130. That is, the basic air duct 110 can be spliced ​​with the additional air duct 130 through the first splicing structure 120 to increase the overall size of the air duct assembly 100.

[0041] In some alternative embodiments, the air duct assembly 100 includes only the basic air duct 110. That is, the air conditioner indoor unit 10 of this embodiment is small in size, and only the basic air duct 110 needs to be installed to fit the air conditioner indoor unit 10 of this embodiment.

[0042] In some alternative embodiments, the duct assembly 100 includes a basic duct 110 and at least one additional duct 130, wherein the additional duct 130 forms a second air guide surface 131. The basic duct 110 and the at least one additional duct 130 are sequentially spliced ​​together in the lateral direction, and the first air guide surface 111 and the at least one second air guide surface 131 are spliced ​​end to end in the lateral direction to jointly form an air guiding structure. In this embodiment, the indoor unit 10 of the air conditioner is relatively large, and the duct assembly 100 is formed by splicing together the basic duct 110 and at least one additional duct 130, thereby adapting to the size of the indoor unit 10 of the air conditioner in this embodiment.

[0043] Compared with related technologies, in this embodiment of the air conditioner indoor unit 10, the basic air duct 110 of the air duct assembly 100 has a first splicing structure 120 at one end in the horizontal direction, so that the basic air duct 110 can be spliced ​​with additional air ducts 130 through the first splicing structure 120. On the one hand, the basic air duct 110 can be spliced ​​and connected with the additional air duct 130 through the first splicing structure 120, so that the basic air duct 110 and the additional air duct 130 can be combined to form air duct assemblies 100 of multiple sizes, thereby eliminating the need to manufacture multiple molds of corresponding sizes. On the other hand, when modifying the indoor unit 10 of the air conditioner, the basic air duct 110 and / or the additional air duct 130 in the original indoor unit 10 can still be reused. By increasing or decreasing the number of additional air ducts 130 spliced ​​with the basic air duct 110, an air duct assembly 100 adapted to the size of the modified indoor unit 10 can be formed. No new injection molds need to be manufactured, which greatly reduces the manufacturing or modification cost of the indoor unit 10 of the present invention and solves the problem of excessively high manufacturing or modification costs of air conditioners.

[0044] To make this application easier to understand, the air conditioner indoor unit 10 of this utility model embodiment will be further described below in the same horizontal and left-right direction.

[0045] In some embodiments, such as Figures 6-7 As shown, the auxiliary air duct 130 has a second air guide surface 131, located on the right side of the basic air duct 110, and the right end of the first air guide surface 111 is connected to the left end of the second air guide surface 131. A second splicing structure 140 is provided on the left side of the auxiliary air duct 130 and the basic air duct 110, and the second splicing structure 140 is spliced ​​and connected to the first splicing structure 120.

[0046] In some embodiments, such as Figures 1-7 As shown, the first splicing structure 120 includes one or more first slots 121 disposed at one end of the base air duct 110 in the horizontal direction, that is, one or more first slots 121 are disposed at the right end of the base air duct 110. The second splicing structure 140 includes one or more second buckles 141 disposed at the left end of the auxiliary air duct 130, and the second buckles 141 are engaged with the first slots 121.

[0047] In other words, a first slot 121 is provided at the right end of the basic air duct 110, and a second buckle 141 is provided at the left end of the auxiliary air duct 130. When the left end of the auxiliary air duct 130 is spliced ​​with the right end of the basic air duct 110, one first slot 121 engages with one second buckle 141 to fix the basic air duct 110 and the auxiliary air duct 130. Multiple first slots 121 are provided at the right end of the basic air duct 110, and multiple second buckles 141 are provided at the left end of the auxiliary air duct 130. When the left end of the auxiliary air duct 130 is spliced ​​with the right end of the basic air duct 110, multiple first slots 121 and multiple second buckles 141 engage one-to-one to fix the basic air duct 110 and the auxiliary air duct 130. This securely engages the basic air duct 110 and the auxiliary air duct 130, resulting in a simple structure and convenient installation, thereby improving the assembly efficiency of the basic air duct 110 and the auxiliary air duct 130.

[0048] In other embodiments, the first splicing structure 120 includes one or more first snaps (not shown) disposed at one end of the base air duct 110 in the lateral direction. The second splicing structure 140 includes one or more second slots (not shown) disposed at one end of the auxiliary air duct 130, and the first snaps are engaged with the second slots.

[0049] In some embodiments, such as Figures 1-7 As shown, the first splicing structure 120 also includes multiple positioning slots 122 disposed at one end of the basic air duct 110, that is, multiple positioning slots 122 are also provided at the right end of the basic air duct 110. The second splicing structure 140 also includes multiple positioning posts 142 disposed at one end of the auxiliary air duct 130, and the multiple positioning posts 142 are inserted into the multiple positioning slots 122 in a one-to-one correspondence. Thus, before the basic air duct 110 and the auxiliary air duct 130 are engaged and connected, they can be positioned by the multiple positioning posts 142 and the multiple positioning slots 122, which not only makes the first air guide surface 111 and the second air guide surface 131 flush, but also makes the basic air duct 110 and the auxiliary air duct 130 easier to splice.

[0050] In some embodiments, the first splicing structure 120 further includes a plurality of positioning slots 122 disposed at one end of the basic air duct 110, that is, a plurality of positioning posts 142 are also disposed at the right end of the basic air duct 110. The second splicing structure 140 further includes a plurality of positioning slots 122 disposed at one end of the auxiliary air duct 130, and the plurality of positioning posts 142 are inserted into the plurality of positioning slots 122 in a one-to-one correspondence.

[0051] The positioning post 142 includes a body and multiple ribs, which are spaced apart along the circumference of the body; the outer end of each rib contacts and abuts against the positioning groove 122. When the positioning post 142 is inserted into the positioning groove 122 or when the positioning post 142 is pulled out of the positioning groove 122, air can pass between the multiple ribs, thereby avoiding excessive resistance when the positioning post 142 is in the positioning groove 122 or when the positioning post 142 is pulled out of the positioning groove 122, and facilitating the insertion and removal of the positioning post 142.

[0052] Furthermore, each rib includes a first segment and a second segment connected sequentially in the left-right direction, with the first segment located outside the second segment. The height of the first segment decreases towards the first air duct frame, while the height of the second segment remains constant in the lateral direction. This facilitates the insertion of the positioning post 142 into the positioning groove 122.

[0053] In some embodiments, such as Figures 1-7 As shown, the first splicing structure 120 also includes a sealing groove 123 disposed at the right end of the basic air duct 110, and the second splicing structure 140 also includes a sealing protrusion 143 disposed at the left end of the auxiliary air duct 130, with the sealing protrusion 143 inserted into the sealing groove 123. Thus, after the basic air duct 110 and the auxiliary air duct 130 are spliced, the sealing protrusion 143 and the sealing groove 123 cooperate to seal the gap formed after the splicing of the basic air duct 110 and the auxiliary air duct 130, thereby preventing airflow leakage from the gap and thus increasing the air volume output of the indoor unit 10.

[0054] In other embodiments, the first splicing structure 120 further includes a sealing protrusion 143 disposed at the right end of the basic air duct 110, and the second splicing structure 140 further includes a sealing groove 123 disposed at the left end of the auxiliary air duct 130, with the sealing protrusion 143 inserted into the sealing groove 123. Thus, after the basic air duct 110 and the auxiliary air duct 130 are spliced, the sealing protrusion 143 and the sealing groove 123 cooperate to seal the gap formed after the splicing of the basic air duct 110 and the auxiliary air duct 130, thereby preventing airflow leakage from the gap and thus increasing the air volume output of the indoor unit 10.

[0055] Furthermore, both the first air guide surface 111 and the second air guide surface 131 are curved surfaces, and the outer contour of the cross-section of the sealing groove 123 and the outer contour of the cross-section of the sealing protrusion 143 are both arc-shaped and adapted to the curved surfaces. This further improves the sealing performance of the air duct assembly 100 formed by splicing the basic air duct 110 and the additional air duct 130, and thus further increases the air volume output of the indoor unit 10 of the air conditioner.

[0056] In some embodiments, there are multiple additional air ducts 130, and the basic air duct 110 and the multiple additional air ducts 130 are sequentially spliced ​​together in the lateral direction. The basic air duct 110 can be spliced ​​together with the multiple additional air ducts 130 through the first splicing structure 120, so that the basic air duct 110 and the additional air ducts 130 can be combined to form air duct assemblies 100 of more sizes, thereby improving the versatility of the air duct assembly 100.

[0057] In some embodiments, the auxiliary air duct 130 has a third splicing structure 150 at its right end in the lateral direction, and the third splicing structure 150 has the same structure as the first splicing structure 120. An auxiliary air duct 130 is connected to its adjacent auxiliary air duct 130 via its second splicing structure 140 and the third splicing structure 150. That is, the positioning structure, engaging structure, and sealing structure included in the first splicing structure 120 are identical to those in the third splicing structure 150. This allows adjacent auxiliary air ducts 130 to be spliced ​​and connected via the third splicing structure 150 and the second splicing structure 140.

[0058] For example, such as Figure 1 and Figure 3 As shown, the first splicing structure 120 includes three sealing grooves 123, and the third splicing structure 150 also includes three sealing grooves 123, with the three sealing grooves 123 of the third splicing structure 150 corresponding to the three sealing grooves 123 of the first splicing structure 120 in their respective positions. Alternatively, the first splicing structure 120 may include two first slots 121, and the third splicing structure 150 may also include two first slots 121, with the two first slots 121 of the third splicing structure 150 corresponding to the two first slots 121 of the first splicing structure 120 in their respective positions. Yet another example: the first splicing structure 120 may include a sealing protrusion 143, and the third splicing structure 150 may also include a sealing protrusion 143, with the sealing protrusion 143 of the third splicing structure 150 corresponding to the sealing protrusion 143 of the first splicing structure 120 in its respective position.

[0059] In some embodiments, the ratio of the lateral dimension of the basic air duct 110 to the lateral dimension of the additional air duct 130 is 1.5-3.

[0060] Optionally, the ratio of the lateral dimension of the basic air duct 110 to the lateral dimension of the additional air duct 130 is 1.5-3. Optionally, the ratio of the lateral dimension of the basic air duct 110 to the lateral dimension of the additional air duct 130 is 1.7-2.8. Optionally, the ratio of the lateral dimension of the basic air duct 110 to the lateral dimension of the additional air duct 130 is 2-2.5. This allows the basic air duct 110 and the additional air duct 130 to be spliced ​​together to form air duct components 100 of various sizes, and avoids the additional air duct 130 being too small, which would make the splicing process of the air duct components 100 too complicated, thereby improving the assembly efficiency of the air duct components 100 in this embodiment.

[0061] The ratio of the lateral dimension of the basic air duct 110 to the lateral dimension of the additional air duct 130 is, but is not limited to, 1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.5, 2.6, 2.7 or 3.

[0062] Therefore, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of 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 indoor unit for an air conditioner, characterized in that, include: The air duct assembly includes a basic air duct; the basic air duct forms a first air guiding surface, and a first splicing structure for connecting an additional air duct is provided at one end of the basic air duct in the lateral direction.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first splicing structure includes one or more first slots disposed at one end of the basic air duct in the lateral direction; or, The first splicing structure includes one or more first snaps disposed at one end of the basic air duct in the lateral direction.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The air duct assembly also includes: An additional air duct is formed with a second air guide surface, located on one side of the basic air duct in the horizontal direction; and one end of the first air guide surface is connected to the corresponding end of the second air guide surface. The additional air duct is provided with a second splicing structure at one end corresponding to the basic air duct; the second splicing structure is spliced ​​and connected to the first splicing structure.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, When the first slot is provided at one end of the basic air duct, the second splicing structure includes one or more second buckles provided at one end of the additional air duct; the second buckles are engaged with the first slot. When the first buckle is provided at one end of the basic air duct, the second splicing structure includes one or more second slots provided at one end of the additional air duct; the first buckle is engaged with the second slot.

5. The indoor unit of the air conditioner according to claim 3, characterized in that, The first splicing structure also includes a plurality of positioning slots disposed at one end of the basic air duct; The second splicing structure also includes a plurality of positioning posts disposed at one end of the additional air duct, wherein the plurality of positioning posts are inserted into the plurality of positioning slots in a corresponding manner.

6. The indoor unit of the air conditioner according to claim 3, characterized in that, The first splicing structure also includes a sealing groove disposed at one end of the basic air duct; The second splicing structure also includes a sealing protrusion disposed at one end of the additional air duct, the sealing protrusion being inserted into the sealing groove.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, Both the first and second air guide surfaces are curved surfaces; The outer contour of the cross-section of the sealing groove and the outer contour of the cross-section of the sealing protrusion are both arc shapes adapted to the arc surface.

8. The indoor unit of the air conditioner according to claim 3, characterized in that, There are multiple additional air ducts, and the basic air duct and the multiple additional air ducts are connected in sequence in the horizontal direction.

9. The indoor unit of the air conditioner according to claim 5, characterized in that, The additional air duct is provided with a third splicing structure at the other end in the horizontal direction; the third splicing structure is consistent with the structure of the first splicing structure; one of the additional air ducts is connected to the third splicing structure of the adjacent additional air duct through its second splicing structure.

10. The indoor unit of the air conditioner according to claim 3, characterized in that, The ratio of the dimension of the basic air duct in the horizontal direction to the dimension of the additional air duct in the horizontal direction is 1.5-3.

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