Indoor unit of air conditioner

Abstract

The utility model provides an indoor unit of an air conditioner. The air conditioner indoor unit comprises a shell, an air outlet shell and an air guide device. A first outlet is formed in the shell; the air outlet shell is arranged on the shell and located on the outer side of the first outlet so as to receive airflow from the first outlet. The air outlet shell is provided with a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are oppositely arranged on the two transverse sides of the first outlet correspondingly, and the bottom plate is arranged on the lower side of the first outlet; the air guide device is fixedly arranged at the ends, away from the first outlet, of the first side plate and the second side plate. The air conditioner indoor unit solves the problems that in the prior art, an air deflector of an air conditioner indoor unit is inconvenient to assemble and clean, and the air supply distance is short.

Description

Technical Field

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

[0002] Currently, air conditioner indoor units typically deliver air directly through vents on the casing, with airflow direction regulated by deflectors. However, the deflectors are directly mounted on the casing and adjacent to the vents, requiring precise positioning and securing within confined spaces during installation. This increases operational difficulty and assembly efficiency, while also making disassembly inconvenient for subsequent maintenance or cleaning, thus increasing labor costs. Furthermore, the deflectors' proximity to the inner side of the vents results in a shorter air delivery distance. Utility Model Content

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

[0004] One objective of this invention is to solve the problems in the prior art where the air guide plate of the indoor unit of an air conditioner is inconvenient to assemble and clean, and has a short air delivery distance.

[0005] Specifically, this utility model provides an indoor unit for an air conditioner, comprising:

[0006] A housing, wherein a first outlet is provided on the housing;

[0007] An air outlet shell is disposed on the housing and located outside the first outlet to receive airflow from the first outlet; the air outlet shell has a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are respectively disposed opposite to each other on the lateral sides of the first outlet, and the bottom plate is disposed below the first outlet.

[0008] An air guide device is fixedly installed on the end of the first side plate and the second side plate opposite to the first outlet.

[0009] Optionally, the air guiding device includes multiple air guiding plates;

[0010] Multiple air guide plates are vertically spaced along the first outlet, and each air guide plate is inclined from the inside out of the air outlet shell towards the end away from the bottom plate.

[0011] Optionally, the first outlet is located on the rear side of the housing;

[0012] The air outlet casing is located on the rear side of the first outlet.

[0013] Optionally, a rear maintenance port is provided on the housing;

[0014] The housing includes a rear maintenance plate disposed at the rear maintenance port, and the first outlet is formed on the rear maintenance plate.

[0015] Optionally, the indoor unit of the air conditioner further includes:

[0016] An air outlet grille is provided at the first outlet, and the air outlet shell is connected to the air outlet grille.

[0017] Optionally, the air outlet housing is provided with at least one set of clips, each set of clips including a first clip portion and a second clip portion arranged opposite to each other, so as to clip the air outlet housing onto the air outlet grille.

[0018] Optionally, the first side plate and the second side plate are provided with mounting grooves, and the two ends of the air guide plate are inserted into the mounting grooves.

[0019] Optionally, the indoor unit of the air conditioner further includes:

[0020] A fresh air purification device is installed inside the housing, and the fresh air purification device has a second outlet, which is connected to the first outlet.

[0021] Optionally, the fresh air purification device includes:

[0022] The outer casing has an air duct formed inside it for airflow; the outer casing is provided with a first inlet for introducing outdoor fresh air into the air duct and a second inlet for introducing indoor return air into the air duct;

[0023] A purification device is installed in the air duct to purify the outdoor fresh air and / or the indoor return air flowing into the air duct;

[0024] The second outlet, facing the rear side of the housing and communicating with the air duct, is used to exhaust the purified outdoor fresh air and / or the indoor return air from the air duct; and

[0025] The housing is provided with a first notch corresponding to the first inlet, for the passage of the fresh air duct;

[0026] The housing is also provided with a second notch corresponding to the second inlet, for connecting the second inlet and the interior.

[0027] Optionally, both the first inlet and the second inlet are located on the rear side of the housing;

[0028] The second outlet is located above the first inlet and the second inlet;

[0029] The opening area of ​​the first inlet is smaller than the opening area of ​​the second inlet.

[0030] In the indoor unit of this air conditioner, firstly, the air guide device is installed on the outside of the housing via an air outlet shell, simplifying the assembly process and making disassembly and cleaning easier. Secondly, the constraint of the first side plate, the second side plate, and the bottom plate of the air outlet shell reduces kinetic energy loss during air diffusion, and combined with the secondary airflow guidance of the air guide device, significantly increases the air delivery distance. Furthermore, the fixed air guide device reduces mechanical oscillation noise, improving the user experience.

[0031] 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

[0032] 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:

[0033] Figure 1 This is a schematic structural diagram of the air outlet shell and air guide device of an air conditioner indoor unit according to an embodiment of the present utility model;

[0034] Figure 2 This is a schematic structural diagram of the rear maintenance plate, air outlet shell, and air guide device according to an embodiment of the present utility model;

[0035] Figure 3 This is a schematic structural diagram of the rear maintenance plate, air outlet shell, and air guide device according to an embodiment of the present utility model;

[0036] Figure 4 This is a schematic structural diagram of the rear maintenance plate, air outlet shell, and air guide device according to an embodiment of the present utility model;

[0037] Figure 5 This is a schematic structural diagram of an indoor air conditioner unit according to an embodiment of the present utility model;

[0038] Figure 6 This is a schematic structural diagram of a fresh air purification device for an indoor air conditioning unit according to an embodiment of the present invention. Detailed Implementation

[0039] The following reference Figures 1 to 6This 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Figure 1This is a schematic structural diagram of the air outlet casing and air guide device of an air conditioner indoor unit according to an embodiment of the present invention, as shown below. Figure 1 As shown, and refer to Figures 2 to 6 This utility model provides an indoor air conditioning unit 100, which includes a housing 110, an air outlet housing 120, and an air guide device 130.

[0044] A first outlet 111 is provided on the housing 110. An air outlet shell 120 is disposed on the housing 110 and located outside the first outlet 111 to receive airflow from the first outlet 111. The air outlet shell 120 has a first side plate 121, a second side plate 122 and a bottom plate 123. The first side plate 121 and the second side plate 122 are respectively disposed opposite to each other on the lateral sides of the first outlet 111, and the bottom plate 123 is disposed on the lower side of the first outlet 111. An air guide device 130 is fixedly disposed at the end of the first side plate 121 and the second side plate 122 that is away from the first outlet 111.

[0045] Specifically, the first outlet 111 can be located on the front or rear side of the housing 110.

[0046] When the indoor unit 100 of the air conditioner is running, the airflow is discharged from the first outlet 111 of the casing 110 and enters the outer air outlet casing 120; the first side plate 121 and the second side plate 122 are located on the lateral sides of the first outlet 111, forming a lateral constraint on the airflow and guiding the airflow to diffuse evenly along the width direction of the air outlet casing 120. At the same time, the bottom plate 123 is located on the lower side of the first outlet 111 to prevent the airflow from escaping downward and to stabilize the airflow direction; finally, when the airflow passes through the air guide device 130, it is guided a second time by the air guide device 130, so that the airflow diffuses into the indoor space and covers a longer distance.

[0047] In this embodiment, firstly, the air guide device 130 is installed on the outside of the housing 110 via the air outlet shell 120, simplifying the assembly process of the air guide device 130 and making disassembly and cleaning more convenient. Secondly, through the constraint of the first side plate 121, the second side plate 122, and the bottom plate 123 of the air outlet shell 120, the kinetic energy loss of the airflow is reduced during diffusion. Combined with the secondary airflow guidance of the air guide device 130, the air delivery distance is significantly improved. In addition, the fixed air guide device 130 reduces mechanical oscillation noise and improves the user experience.

[0048] like Figures 1 to 5 In some optional embodiments of this utility model, the air guiding device 130 includes a plurality of air guiding plates 131; the plurality of air guiding plates 131 are vertically spaced along the first outlet 111, and each air guiding plate 131 is inclined from the inside out of the air outlet shell 120 toward the end away from the bottom plate 123. That is, the air guiding plate 131 gradually inclines away from the bottom plate 123 from the inside out of the air outlet shell 120.

[0049] Specifically, when the first outlet 111 is located on the front or rear side of the housing 110, the airflow enters the air outlet housing 120 from the first outlet 111 of the housing 110, and after being laterally diffused by the first side plate 121 and the second side plate 122, it is supported by the bottom plate 123 to form a stable horizontal flow. When the airflow passes through the air guide device 130, multiple vertically spaced air guide plates 131 guide the horizontal airflow layer by layer upward with their inclined direction (such as an angle of 30° to 45° with the horizontal direction), forming multiple upward diffused airflow layers that cover the upper space of the room. At the same time, because the air guide plates 131 are spaced apart, the airflow is naturally layered vertically, reducing turbulence interference, and finally achieving long-distance, three-dimensional air supply coverage.

[0050] like Figure 3 As shown, in some optional embodiments of this utility model, the air guide plate 131 is an arc-shaped plate with the concave surface facing upward to form an arc-shaped airflow guide surface.

[0051] In some optional embodiments of this utility model, the air guide plate 131 is a straight plate, and the straight plate forms an angle of 30° to 75° with the plane where the first outlet is located. Preferably, the straight plate forms an angle of 60° with the plane where the first outlet is located.

[0052] In some optional embodiments of this utility model, the first outlet 111 is located on the rear side of the housing 110; the air outlet housing 120 is located on the rear side of the first outlet 111. This embodiment helps to prevent the air blown from the first outlet from directly blowing on the user, thus improving the user experience.

[0053] like Figure 3 As shown, in some optional embodiments of the present invention, a rear maintenance port is provided on the housing 110; the housing 110 includes a rear maintenance plate 140, the rear maintenance plate 140 is disposed at the rear maintenance port, and a first outlet 111 is formed on the rear maintenance plate 140.

[0054] In this embodiment, the rear maintenance plate 140 is connected to the housing 110 via a detachable structure (such as clips or screws). When maintenance is required, only the rear maintenance plate 140 needs to be removed to directly repair the internal components of the housing 110, without disassembling the entire outer casing 151, thus significantly shortening maintenance time. The first outlet 111 is located on the rear maintenance plate 140. When the rear maintenance plate 140 is removed, the air outlet casing 120 and the air guide device 130 can be cleaned or replaced simultaneously.

[0055] like Figure 3 and Figure 4 As shown, in some optional embodiments of this utility model, the indoor unit 100 of the air conditioner further includes an air outlet grille 141, which is disposed at the first outlet 111, and the air outlet housing 120 is connected to the air outlet grille 141. In some alternative embodiments, the air outlet housing 120 is directly connected to the rear maintenance plate 140.

[0056] Specifically, the air outlet grille 141 has a mesh structure, including multiple horizontal bars and multiple vertical bars. The horizontal bars extend laterally along the first outlet 111 and are spaced apart vertically along the first outlet 111; the vertical bars extend vertically along the first outlet 111 and are spaced apart horizontally along the first outlet 111. The air outlet grille 141 can increase the strength of the first air outlet.

[0057] Compared to the method where the air outlet housing 120 is directly connected to the rear maintenance panel body, in this embodiment, the air outlet housing 120 is connected to the air outlet grille 141 and installed on the rear maintenance panel through the air outlet grille 141. The connection structure between the air outlet housing 120 and the air outlet grille 141 is hidden inside the air outlet housing 120, which makes the indoor unit 100 of the air conditioner look cleaner and significantly improves its aesthetics.

[0058] like Figure 1 and Figure 4 As shown, in some optional embodiments of this utility model, the air outlet housing 120 is provided with at least one set of latches 124. Each set of latches 124 includes a first latching part 1241 and a second latching part 1242 arranged vertically opposite to each other, so as to latch the air outlet housing 120 onto the air outlet grille 141. Specifically, the air outlet housing 120 is latched onto the crossbar of the air outlet grille 141.

[0059] In this embodiment, the air outlet housing 120 is snapped onto the air outlet grille 141 by a snap fastener. This connection method has the advantage of facilitating assembly and disassembly.

[0060] In some alternative embodiments of this utility model, the air outlet shell 120 is connected to the air outlet grille 141 by heat fusion or threaded connection.

[0061] like Figure 4 As shown, in some optional embodiments of this utility model, the first side plate 121 and the second side plate 122 are provided with mounting grooves, and the two ends of the air guide plate 131 are inserted into the mounting grooves.

[0062] Specifically, by aligning both ends of the air guide plate 131 with the mounting slots of the first side plate 121 and the second side plate 122 and inserting it, the air guide plate 131 and the air outlet shell 120 can be fixedly connected.

[0063] In this embodiment, the air guide plate 131 is quickly positioned and fixed by inserting into the mounting slots of the two side plates, without the need for additional fasteners, resulting in high assembly efficiency and good robustness, thereby ensuring the stability of airflow guidance.

[0064] In some optional embodiments of this utility model, the air guide plate 131, the first side plate 121, and the second side plate 122 are integrally formed.

[0065] In some optional embodiments of this utility model, the air guide plate 131 is connected to the first side plate 121 and the second side plate 122 by heat fusion.

[0066] In some optional embodiments of this utility model, an air guide structure is fixedly provided at one end of the first side plate 121 and the second side plate 122 away from the bottom plate 123. The air guide structure can be a guide plate. The guide plate is inclined upward towards the housing 110.

[0067] like Figure 6 As shown, in some optional embodiments of this utility model, the indoor unit 100 of the air conditioner further includes a fresh air purification device 150, which is disposed within the housing. The fresh air purification device 150 has a second outlet 154, which is connected to the first outlet 111. That is, the first outlet 111 is used to guide the air outlet of the fresh air purification device 150 to the indoor space. In this embodiment, by setting the air outlet housing 120 and the air guide device 130, the fresh air purification device 150 can have a longer air delivery distance, which is beneficial to uniform indoor airflow.

[0068] like Figure 6 As shown, in some optional embodiments of this utility model, the fresh air purification device 150 includes a housing 151, a purification device, and a second outlet 154. A duct for airflow is formed within the housing 151; the housing 151 has a first inlet 152 for introducing outdoor fresh air into the duct and a second inlet 153 for introducing indoor return air into the duct; the purification device is disposed within the duct and is used to purify the outdoor fresh air and / or indoor return air flowing into the duct. The second outlet 154 faces the rear side of the housing 151 and communicates with the duct, used to discharge the purified outdoor fresh air and / or indoor return air from the duct. The first outlet 111 is disposed on the rear side of the housing 110 and corresponds to the second outlet 154. The housing 110 has a first notch corresponding to the first inlet 152 for the passage of a fresh air duct; the housing 110 also has a second notch corresponding to the second inlet 153 for connecting the second inlet 153 and the indoor space.

[0069] When the air conditioner is running, outdoor fresh air enters the duct through the first inlet 152, and indoor return air is simultaneously drawn in through the second inlet 153. The two are mixed in the duct and then filtered and purified by a purification device (such as a HEPA filter). The purified airflow enters the rear of the indoor unit 100 of the air conditioner from the second outlet 154 and the first outlet 111, thereby avoiding the purified fresh air from blowing directly on the user and improving the user experience.

[0070] Furthermore, when the indoor unit 100 is a vertical indoor unit, the main air inlet of the indoor unit is usually located at the rear of the casing 110. By guiding the air outlet (purified air) of the fresh air purification device 150 to the rear of the casing 110, it is beneficial for the purified air to enter the heat exchange air duct inside the casing 110 through the main air inlet, thereby facilitating the mixing of the purified air and the heat exchange air, which is conducive to uniform indoor airflow.

[0071] In some optional embodiments of this utility model, the air duct of the fresh air purification device 150 is an L-shaped air duct, and the air duct is connected to the second outlet 154 through the air outlet structure 155.

[0072] Specifically, the centrifugal fan is installed in an L-shaped air duct, the rotation axis of the centrifugal fan extends in the front-to-back direction, and the exhaust port is located at the top of the centrifugal fan; the centrifugal fan has an air intake port and an exhaust port, the air intake port is connected to the first inlet 152 and the second inlet 153, and the exhaust port is connected to the second outlet 154 through an air outlet structure.

[0073] In some optional embodiments of this utility model, the fresh air purification device 150 is installed at the bottom inside the housing 110 of the air conditioner indoor unit 100.

[0074] like Figure 6 As shown, in some optional embodiments of this utility model, the first inlet 152 and the second inlet 153 are both disposed on the rear side of the outer casing 151; the second outlet 154 is disposed above the first inlet 152 and the second inlet 153.

[0075] In this embodiment, the first inlet 152, the second inlet 153, and the second outlet 154 are all located on the rear side of the outer casing 151. The concealed design avoids the exposure of external pipelines and improves the overall aesthetics of the machine.

[0076] In some optional embodiments of this utility model, the first inlet 152 and the second inlet 153 are spaced apart in the left-right direction.

[0077] In some optional embodiments of this utility model, the first inlet 152 and the second inlet 153 are spaced apart in the vertical direction. For example, the first inlet 152 is located below the second inlet 153; or, the first inlet 152 is located above the second inlet 153.

[0078] like Figure 6 As shown, preferably, the first inlet 152 is positioned above the second inlet 153. This arrangement allows the second inlet 153 to be located away from the second outlet 154, which helps prevent airflow short-circuiting, i.e., prevents the airflow from the second outlet 154 from being drawn back into the second inlet 153, thus improving ventilation efficiency.

[0079] like Figures 1 to 4As shown, in some optional embodiments of this utility model, the opening area of ​​the first inlet 152 is smaller than the opening area of ​​the second inlet 153.

[0080] In this embodiment, by limiting the proportion of fresh air intake, the amount of fresh air is relatively small and the amount of return air is relatively large, which is conducive to improving the overall purification and filtration efficiency of indoor air and also helps to maintain indoor pressure balance.

[0081] In some embodiments of this utility model, the air conditioner indoor unit 100 is a recessed air conditioner indoor unit, a wall-mounted air conditioner indoor unit, a floor-standing air conditioner indoor unit, or other types of air conditioner indoor units.

[0082] Preferably, the indoor unit 100 is a vertical indoor unit.

[0083] 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: A housing, wherein a first outlet is provided on the housing; An air outlet shell is disposed on the housing and located outside the first outlet to receive airflow from the first outlet; the air outlet shell has a first side plate, a second side plate and a bottom plate, the first side plate and the second side plate are respectively disposed opposite to each other on the lateral sides of the first outlet, and the bottom plate is disposed below the first outlet. An air guide device is fixedly installed on the end of the first side plate and the second side plate opposite to the first outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The air guiding device includes multiple air guiding plates; Multiple air guide plates are vertically spaced along the first outlet, and each air guide plate is inclined from the inside out of the air outlet shell towards the end away from the bottom plate.

3. The indoor unit of the air conditioner according to claim 1 or 2, characterized in that, The first outlet is located on the rear side of the housing; The air outlet casing is located on the rear side of the first outlet.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The housing is provided with a rear maintenance port; The housing includes a rear maintenance plate disposed at the rear maintenance port, and the first outlet is formed on the rear maintenance plate.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: An air outlet grille is provided at the first outlet, and the air outlet shell is connected to the air outlet grille.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The air outlet shell is provided with at least one set of buckles, each set of buckles including a first buckle part and a second buckle part arranged opposite to each other, so as to snap the air outlet shell onto the air outlet grille.

7. The indoor unit of the air conditioner according to claim 2, characterized in that, The first side plate and the second side plate are provided with mounting grooves, and the two ends of the air guide plate are inserted into the mounting grooves.

8. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: A fresh air purification device is installed inside the housing, and the fresh air purification device has a second outlet, which is connected to the first outlet.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, The fresh air purification device includes: The outer casing has an air duct formed inside it for airflow; the outer casing is provided with a first inlet for introducing outdoor fresh air into the air duct and a second inlet for introducing indoor return air into the air duct; A purification device is installed in the air duct to purify the outdoor fresh air and / or the indoor return air flowing into the air duct; The second outlet, facing the rear side of the housing and communicating with the air duct, is used to exhaust the purified outdoor fresh air and / or the indoor return air from the air duct; and The housing is provided with a first notch corresponding to the first inlet, for the passage of the fresh air duct; The housing is also provided with a second notch corresponding to the second inlet, for connecting the second inlet and the interior.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, Both the first inlet and the second inlet are located on the rear side of the housing; The second outlet is located above the first inlet and the second inlet; The opening area of ​​the first inlet is smaller than the opening area of ​​the second inlet.

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