Indoor unit of air conditioner

Abstract

The invention provides an indoor unit of an air conditioner. The indoor unit comprises an air supply duct, a shell and an air guide device. The shell is provided with an air outlet connected to the air supply duct. The air guide device comprises a first air guide plate, a second air guide plate and a third air guide plate which are used for guiding air out of the air outlet. The first air guide plate, the second air guide plate and the third air guide plate are sequentially arranged in the width direction of the air outlet. According to the air conditioner indoor unit, the air guide device is arranged, so that the air conditioner indoor unit has more air outlet modes, various requirements of customers are met, and the satisfaction degree of the users is improved.

Description

Technical Field

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

[0002] For a long time, users have mainly adjusted the airflow direction of air conditioners by using the air deflector when cooling or heating. Currently, the air deflector structure of indoor air conditioner units is mainly a long, single deflector, which generally has three airflow modes: a maximum airflow mode where the deflector guides the air forward and downward, a cooling upward blowing mode where the deflector guides the air upward, and a heating downward blowing mode where the deflector guides the air downward. The airflow modes are not rich enough and cannot meet more user needs. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide an air conditioner indoor unit that overcomes or at least partially solves the above problems, having multiple air outlet modes, thereby meeting various customer needs and improving user satisfaction.

[0004] Specifically, the present invention provides an indoor unit of an air conditioner, comprising: an air supply duct, and further comprising:

[0005] The housing has an air outlet connected to the air supply duct;

[0006] An air guiding device, comprising a first air guide plate, a second air guide plate, and a third air guide plate for guiding air out of the air outlet; the first air guide plate, the second air guide plate, and the third air guide plate are arranged sequentially along the width direction of the air outlet.

[0007] Optionally, the extended surface of the air supply duct connected to the upper edge of the air outlet is a first reference plane;

[0008] The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; the plane containing the first edge and the second edge is a second reference plane;

[0009] The second air guide plate is fixedly or movably disposed and arranged such that it has a first position, wherein when the second air guide plate is in the first position, the angle between the second reference plane and the first reference plane is within a first preset angle.

[0010] Optionally, the extended surface of the air supply duct connected to the lower edge of the air outlet is a third reference plane;

[0011] The first preset angle is less than or equal to half the angle between the first reference plane and the third reference plane.

[0012] Optionally, the extended surface of the air supply duct connected to the upper edge of the air outlet is a first reference plane;

[0013] The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; the plane containing the first edge and the second edge is a second reference plane;

[0014] The second air guide plate is fixedly or movably arranged to have a first position, in which the second reference plane is parallel to the air outlet direction when the second air guide plate is in the first position.

[0015] Optionally, when the second air guide plate is in the first position, the second air guide plate is located between the first reference plane and the second reference plane;

[0016] When the second air guide plate is in the first position, the second air guide plate arches upward, and the upper surface of the second air guide plate is tangent to the first reference plane.

[0017] Optionally, the third air guide plate is fixedly or movably installed;

[0018] When the second air guide plate is in the first position, the second edge is in contact with the outer surface of the third air guide plate, the lower edge of the third air guide plate is located in front of and below the upper edge of the third air guide plate, and the third air guide plate is spaced apart from the lower edge of the air outlet.

[0019] The upper edge of the third air guide plate is located on the second reference plane, or above the second reference plane.

[0020] Optionally, the extended surface of the air supply duct connected to the upper edge of the air outlet is a first reference plane;

[0021] The second air guide plate has a first edge and a second edge, with the second edge located below the first edge;

[0022] The second air guide plate is fixedly or movably disposed and arranged such that it has a second position, in which the first edge is on or above the first reference plane and the second edge is in front of or directly below the first edge.

[0023] Optionally, the third air guide plate is located below the second air guide plate;

[0024] The third air guide plate is fixedly or movably disposed. When the second air guide plate is in the second position, the second edge is in contact with the outer surface or upper edge of the third air guide plate, or the second edge is located above and behind the upper edge of the third air guide plate, and the distance between the second edge and the upper edge of the third air guide plate is less than a preset value; the lower edge of the third air guide plate is located directly below the upper edge of the third air guide plate, and the third air guide plate is spaced apart from the lower edge of the air outlet.

[0025] Optionally, the first edge is spaced apart from the upper edge of the air outlet;

[0026] The lower edge of the first air guide plate is spaced apart from the upper edge of the air outlet;

[0027] The first air guide plate is fixedly or movably disposed, the upper edge of the first air guide plate is in contact with the surface of the housing, and the lower edge of the first air guide plate is on the first reference plane or above the first reference plane.

[0028] Optionally, the second air guide plate is an arc plate, which protrudes forward;

[0029] The rotation axis of the second air guide plate is located behind the second air guide plate and is equidistant from the first edge and the second edge. The distance from the rotation axis to the first reference plane is less than the distance from the rotation axis to the first edge.

[0030] Optionally, the first air guide plate, the second air guide plate, and the third air guide plate are all fixedly or movably arranged;

[0031] The second air guide plate has a first edge and a second edge, with the second edge located below the first edge;

[0032] The second air guide plate is arranged to have a third position, in which the second edge is located below and behind the first edge; the lower edge or the lower surface of the first air guide plate is in contact with the second air guide plate, and the upper edge of the first air guide plate is located above and in front of the lower edge of the first air guide plate; the lower edge of the third air guide plate is in contact with the lower edge of the air outlet, or located below and behind the lower edge of the air outlet, or in contact with the surface of the housing; the upper edge of the third air guide plate is spaced apart from the second air guide plate.

[0033] Optionally, when the second air guide plate is in the third position, the second air guide plate arches forward and downward, and the cross-section of the second edge is parallel to or at an angle within a second preset angle to the air outlet direction.

[0034] Optionally, both the first air guide plate and the third air guide plate can be movably arranged, with the first air guide plate having a first movable position and a third movable position, and the third air guide plate having a second movable position and a fourth movable position;

[0035] The extended surface of the air supply duct connected to the upper edge of the air outlet is the first reference plane;

[0036] The second air guide plate is arranged to have a fourth position, in which the second air guide plate is located in front of the air outlet and is spaced apart from both the upper edge and the lower edge of the air outlet, and the second edge is located behind and below the first edge; when the second air guide plate is in the third position, the first edge is located in front and below the first edge when the second air guide plate is in the fourth position.

[0037] When the second air guide plate is in the fourth position and the first air guide plate is in the first movable position, the lower edge of the first air guide plate is in front of the second air guide plate.

[0038] When the second air guide plate is in the fourth position and the third air guide plate is in the second movable position, the upper edge of the third air guide plate is in front of the second air guide plate.

[0039] Optionally, when the second air guide plate is in the fourth position, the first edge is above the first reference plane, and the second edge is below and in front of the upper edge of the air outlet;

[0040] When the third air guide plate is in the second movable position, the upper edge of the third air guide plate is located in front of and above the lower edge of the air outlet, and the third air guide plate is spaced apart from the lower edge of the air outlet.

[0041] Optionally, when the second air guide plate is in the fourth position and the first air guide plate is in the third movable position, the upper edge of the first air guide plate contacts the front surface of the housing;

[0042] When the second air guide plate is in the fourth position and the third air guide plate is in the fourth movable position, the lower edge of the third air guide plate contacts the front surface of the housing.

[0043] Optionally, the front surface of the housing includes a first region, a second region, and a third region connected in sequence;

[0044] The first region has a first side and a second side, the first side being connected to the upper edge of the air outlet, and the second side being located in front of and above the first side;

[0045] The third region has opposing third and fourth sides, with the third side positioned in front of and above the second side;

[0046] The second region is connected to the second side and the third side;

[0047] When the first air guide plate is in the third movable position, the upper edge of the first air guide plate is in contact with the third region or the area above the third region.

[0048] In the indoor unit of the air conditioner of this invention, the arrangement of the first, second, and third air guide plates enables the indoor unit to have multiple air outlet modes. For example, the first, second, and third air guide plates can be opened and closed individually to open and close corresponding parts of the air outlet. Taking the first air guide plate as the upper side as an example, when the indoor unit of the air conditioner is discharging cooling air, only the first air guide plate can be opened to guide the cooling air out; when the indoor unit of the air conditioner is discharging heating air, only the third air guide plate can be opened to guide the heating air out. Alternatively, the first, second, and third air guide plates can be opened and closed in conjunction to guide the air outlet. When the first air guide plate opens the corresponding upper air outlet and the third air guide plate opens the corresponding lower air outlet, an air outlet mode not available with a single air guide plate can be achieved. Therefore, this arrangement allows the indoor unit of the air conditioner to have more air outlet modes, meeting various customer needs and improving user satisfaction.

[0049] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0050] The following sections will describe some specific embodiments of the invention in detail 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 portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0051] Figure 1 This is a schematic structural diagram of the closed air guide device of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0052] Figure 2 This is a schematic structural diagram of the maximum air supply mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0053] Figure 3 This is the main airflow direction from the air outlet of the indoor unit of an air conditioner in the maximum air supply mode according to an embodiment of the present invention;

[0054] Figure 4 This is a schematic structural diagram of the upward cooling mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0055] Figure 5 This is the mainstream airflow direction of the air outlet in the cold air upward mode of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0056] Figure 6 This is a schematic structural diagram of the hot air down-blowing mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0057] Figure 7 This is the mainstream airflow direction of the air outlet in the hot air down-blowing mode of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0058] Figure 8 This is a schematic structural diagram of the surround airflow mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0059] Figure 9 This is the mainstream airflow direction of the air outlet in the surround airflow mode of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0060] Figure 10 This is a schematic structural diagram of the surround airflow mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0061] Figure 11 This is the mainstream airflow direction of the air outlet in the surround airflow mode of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0062] Figure 12 This is a schematic structural diagram of the surround airflow mode of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0063] Figure 13 This is the mainstream airflow direction of the air outlet in the surround airflow mode of the indoor unit of an air conditioner according to an embodiment of the present invention. Detailed Implementation

[0064] The following reference Figures 1 to 13 This description pertains to the indoor unit of an air conditioner 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 with "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, "a plurality of" 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.

[0065] Unless otherwise expressly specified and limited, the terms "set up," "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 invention according to the specific circumstances.

[0066] 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.

[0067] 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 the present invention. 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.

[0068] Figure 1 This is a schematic structural diagram of the closed air guide device 200 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 13 The arrows in the diagram indicate the air outlet direction. This embodiment of the invention provides an indoor unit for an air conditioner, including an air supply duct 102, a housing 100, and an air guide device 200. An air outlet 101 connected to the air supply duct 102 is provided on the housing 100. The air guide device 200 includes a first air guide plate 210, a second air guide plate 220, and a third air guide plate 230 for guiding the air out of the air outlet 101. The first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 are arranged sequentially along the width direction of the air outlet 101.

[0069] The arrangement of the first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 enables the indoor unit of the air conditioner to have multiple air outlet modes. For example, the first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 can be opened and closed individually to open and close the corresponding parts of the air outlet 101. Taking the first air guide plate 210 as the upper side as an example, when the indoor unit of the air conditioner is discharging cooling air, only the first air guide plate 210 can be opened to guide the cooling air out; when the indoor unit of the air conditioner is discharging heating air, only the third air guide plate 230 can be opened to guide the heating air out. Furthermore, the first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 can be opened and closed in conjunction to guide the air outlet 101. When the first air guide plate 210 opens the corresponding upper air outlet 101, and the third air guide plate 230 opens the corresponding lower air outlet 101, an air outlet mode that a single air guide plate cannot achieve can be realized. Therefore, this design allows the indoor unit of the air conditioner to have more air outlet modes, meeting a variety of customer needs and improving user satisfaction.

[0070] In some embodiments of the present invention, such as Figure 2 As shown, the extended surface of the air supply duct 102 connected to the upper edge of the air outlet 101 is the first reference plane 103. The second air guide plate 220 has a first edge 211 and a second edge 212, with the second edge 212 located below the first edge 211. The plane containing the first edge 211 and the second edge 212 is the second reference plane 213. The second air guide plate 220 is fixedly or movably disposed and arranged such that it has a first position in which the angle between the second reference plane 213 and the first reference plane 103 is within a first preset angle.

[0071] By limiting the angle between the second reference plane 213 and the first reference plane 103, the obstruction of the second air guide plate 220 to the air outlet 101 can be reduced, resulting in a larger air volume. Therefore, the air outlet mode when the second air guide plate 220 is in the first position is also called the high air volume mode. The first preset angle here should be as small as possible, for example, the first preset angle should not be greater than 10°.

[0072] Furthermore, in some embodiments of the present invention, the extended surface of the air supply duct 102 connected to the lower edge of the air outlet 101 is a third reference plane. The first preset angle is less than or equal to half the angle between the first reference plane 103 and the third reference plane.

[0073] The air outlet 101 is defined by the first reference plane 103 and the third reference plane. This setting further defines the angle between the second reference plane 213 and the first reference plane 103, thereby further reducing the obstruction of the second air guide plate 220 to the air outlet 101.

[0074] In some alternative embodiments of the invention, when the second air guide plate 220 is in the first position, the second reference plane 213 is parallel to the air outlet direction of the air outlet 101. Clearly, this arrangement minimizes the shadow area of ​​the second air guide plate 220 on the auxiliary plane perpendicular to the air outlet direction, and also minimizes the obstruction of the air outlet by the second air guide plate 220, thus maximizing the airflow at the air outlet 101. This arrangement also reduces noise from the second air guide plate at the air outlet.

[0075] In some embodiments of the present invention, such as Figure 2 As shown, when the second air guide plate 220 is in the first position, the second air guide plate 220 is located between the first reference plane 103 and the second reference plane 213. That is, in the first position, the second air guide plate 220 is located above the air outlet 101, preferably, the second air guide plate 220 is located near the upper edge of the air outlet 101.

[0076] In some embodiments of the present invention, when the second air guide plate 220 is in the first position, the second air guide plate 220 is arched upward, and the upper surface of the second air guide plate 220 is tangent to the first reference plane 103. The air passing through the second air guide plate 220 is guided by the shape of the second air guide plate 220, and the air passing through the lower surface of the second air guide plate 220 and the air passing through the upper surface of the second air guide plate 220 are both blown downward.

[0077] In some embodiments of the present invention, the tangent plane 214 of the centerline of the outer surface of the arched second air guide plate is parallel to the second reference plane 213.

[0078] In some embodiments of the present invention, the third air guide plate 230 is fixedly or movably disposed when the second air guide plate 220 is in the first position, the second edge 212 contacts the outer surface of the third air guide plate 230, the lower edge of the third air guide plate 230 is located in front of and below the upper edge of the third air guide plate 230, and the third air guide plate 230 is spaced apart from the lower edge of the air outlet 101.

[0079] When the second air guide plate 220 is in the first position, the third air guide plate 230 is fixedly disposed on or movable to the second edge 212 and in contact with the outer surface of the third air guide plate 230, and the third air guide plate 230 extends from back to front or forward or forward and downward, so that the air outlet 101 is blown forward or forward and upward or forward and downward under the guidance of the second air guide plate 220 and the third air guide plate 230.

[0080] Furthermore, in some embodiments of the present invention, the upper edge of the third air guide plate 230 is located on or above the second reference plane 213. That is, the upper edge of the third air guide plate 230 is above the second edge 212. For example, the third edge can be above the second edge and in front of the second air guide plate, or it can be behind the second air guide plate and in contact with it. In particular, when the third edge is above the second edge and behind it and in contact with it, the obstruction of the third air guide plate to the air outlet can be minimized. When the third air guide plate 230 is a straight plate or an arc plate with a small curvature, this arrangement allows the air outlet 101 to be guided forward and downward by the second air guide plate 220 and the third air guide plate 230. Of course, the third air guide plate can also be fixedly installed as a whole or movable to the front and above the second air guide plate. That is, the air outlet is mainly guided by the second air guide plate.

[0081] Within a certain distance, the airflow from the indoor unit of an air conditioner blows directly onto people at high speeds, creating a wall of air that causes significant discomfort, especially in cooling mode. To reduce this discomfort, the main measures are to reduce the airflow velocity and change the direction of the airflow from the indoor unit. A common approach is to add micro-perforations to the air guide vanes or louvers. However, this design severely reduces the airflow volume, affecting the performance of the indoor unit. The air guide device used in this embodiment solves this problem. Figure 3 As shown, the first colored area 241 represents the main direction of the airflow. A small portion of the airflow, guided by the upper surface of the second air guide plate, merges with the main airflow from the lower side of the second air guide plate and is then blown out from the lower front of the air outlet. At this time, the maximum airflow can reach 654m³. 3 / h, with a relatively large air volume, especially compared to a single air guide plate, the air volume is significantly improved. Preferably, the air outlet angle is 37° with the horizontal plane.

[0082] Furthermore, in some embodiments of the present invention, the third air guide plate 230 is rotatably disposed such that when the second air guide plate 220 is in the first position, the third air guide plate 230 rotates upward to the maximum position so that the air outlet 101 discharges air at the maximum air volume.

[0083] In some embodiments of the present invention, such as Figure 2 As shown, the first edge 211 is spaced apart from the upper edge of the air outlet 101. The lower edge of the first air guide plate 210 is also spaced apart from the upper edge of the air outlet 101.

[0084] In other words, there is an air outlet channel between the first edge 211 and the upper edge of the air outlet 101, and at least part of the air outlet passing through this air outlet channel will pass upward through the first air guide plate 210.

[0085] In some embodiments of the present invention, such as Figure 2 As shown, the first air guide plate 210 is fixedly or movably disposed. When the second air guide plate 220 is in the first position, the upper edge of the first air guide plate 210 is in contact with the surface of the housing 100 and the lower edge of the first air guide plate 210 is on or above the first reference plane 103.

[0086] In some embodiments of the present invention, when the second air guide plate 220 is in the first position, the first air guide plate 210 is fixedly disposed or movable such that the upper edge of the first air guide plate 210 contacts the surface of the housing 100 and the lower edge of the first air guide plate 210 is on or above the first reference plane 103, so that the first air guide plate 210 closes the upward air outlet channel, so that the air outlet is blown forward and downward with maximum air volume under the guidance of the second air guide plate 220 and / or the third air guide plate 230, avoiding the influence of the first air guide plate 210 on the air outlet.

[0087] In some embodiments of the present invention, such as Figure 6 As shown, the second air guide plate 220 is fixedly or movably disposed and arranged to have a second position, in which the first edge 211 is on or above the first reference plane 103, and the second edge 212 is in front of or directly below the first edge 211.

[0088] The airflow from the upper side of the air outlet 101 is blocked and guided by the second air guide plate 220, flowing towards the second edge 212 located below or directly below the first edge 211. The upper airflow includes the airflow passing through the upper edge of the air outlet 101. This arrangement causes the airflow from at least the upper air outlet 101 to blow downwards or forwards. This arrangement is particularly suitable for the air outlet 101 to blow hot air downwards. Therefore, when the second air guide plate 220 is in the second position, the indoor unit of the air conditioner is in the hot air downward blowing mode.

[0089] Furthermore, in some embodiments of the present invention, the third air guide plate 230 is located below the second air guide plate 220. The third air guide plate 230 is fixedly or movably disposed, and when the second air guide plate 220 is in the second position, the second edge 212 contacts the outer surface or upper edge of the third air guide plate 230, the lower edge of the third air guide plate 230 is located below the upper edge of the third air guide plate 230, and the third air guide plate 230 is spaced apart from the lower edge of the air outlet 101.

[0090] The second edge 212 contacts the outer surface or upper edge of the third air guide plate 230, and the third air guide plate 230 extends downward. Part of the airflow blowing from the air outlet 101 is blocked and diverted by the second air guide plate 220, and the other part is blocked and diverted downward by the third air guide plate 230, thus ensuring that all airflow from the air outlet 101 blows downward, especially improving the heating effect for heating air. Figure 7 As shown, the second colored area 242 represents the main airflow direction. At this point, the maximum airflow can reach 572m³ / h. 3 / h, compared to the high-volume airflow mode, the airflow is smaller, reduced by approximately 12.54%. Preferably, the air outlet angle is 29° with the horizontal plane.

[0091] In other embodiments of the present invention, the second edge 212 is located above and behind the upper edge of the third air guide plate 230, and the distance between the second edge 212 and the upper edge of the third air guide plate 230 is less than a preset value. That is, the second edge 212 is not connected to the third air guide plate 230, but the gap is very small and will not affect the air guiding of the second air guide plate 220 and the third air guide plate 230.

[0092] In some embodiments of the present invention, when the second air guide plate 220 is in the second position, the first edge 211 is spaced apart from the upper edge of the air outlet 101. The lower edge of the first air guide plate 210 is spaced apart from the upper edge of the air outlet 101.

[0093] In some embodiments of the present invention, such as Figure 2 As shown, the second air guide plate 220 is a forward-protruding arc-shaped plate. The arc-shaped plate is beneficial for guiding the airflow. The first air guide plate 210 and the third air guide plate 230 are plate-shaped and can be either straight or arc-shaped.

[0094] In some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the rotation axis 223 of the second air guide plate is located behind the second air guide plate 220 and is equidistant from the first edge 211 and the second edge 212. The distance from the rotation axis 223 to the first reference plane 103 is less than the distance from the rotation axis 223 to the first edge 211. This arrangement ensures that when the second air guide plate 220 rotates from the first position to the second position, the second edge 212 of the second air guide plate 220 is located in front of and below the first edge 211, which is beneficial for guiding hot air downwards.

[0095] Furthermore, in some embodiments of the present invention, such as Figure 2 and Figure 4 As shown, the rotation axis 223 of the second air guide plate is located on the second reference plane.

[0096] In some embodiments of the present invention, the first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 are all fixedly or movably disposed. The second air guide plate 220 is arranged to have a third position, in which the second edge 212 is located below and behind the first edge 211. When the second air guide plate 220 is in the second position, the lower edge or lower surface of the first air guide plate 210 contacts the second air guide plate 220, and the upper edge of the first air guide plate 210 is located above and in front of the lower edge of the first air guide plate 210. The lower edge of the third air guide plate 230 contacts the lower edge of the air outlet 101, or is located below and behind the lower edge of the air outlet 101, or contacts the surface of the housing 100. The upper edge of the third air guide plate 230 is spaced apart from the second air guide plate 220.

[0097] When the second air guide plate 220 is in the third position, the air outlet is guided through the second edge 212 of the second air guide plate 220 to the first edge 211 located above and in front of the second edge 212, that is, the air is blown forward and upward. This setting provides the best cooling effect for the air outlet 101. Therefore, when the second air guide plate 220 is in the third position, the air outlet mode of the indoor unit of the air conditioner is the cold air rising mode. At this time, the first air guide plate 210 is fixed to or moves until its lower edge or its lower surface contacts the second air guide plate 220 and extends forward and upward to guide the air outlet passing through the first air guide plate 210 forward and upward. Simultaneously, the third air guide plate 230 closes its corresponding air outlet 101. Part of the airflow from the third air guide plate 230, guided by the upper edge of the third air guide plate and the gap between the second air guide plate 220 and the outer surface of the second air guide plate 220, is also blown forward and upward. The other part flows along the inner surfaces of the third and second air guide plates, and these two airflows eventually converge. The cooperation of the first air guide plate 210, the second air guide plate 220, and the third air guide plate 230 ensures that the airflow from the air outlet 101 is blown forward and upward, resulting in the best cooling effect, especially for cooling air. Figure 5 As shown, the fourth color area 243 represents the airflow passing through the upper surface of the second air guide plate, and the fifth color area 244 represents the main direction of the airflow. At this point, the maximum airflow can reach 632 m³ / h. 3 / h, compared to the high-volume airflow mode, the airflow is smaller, reduced by approximately 3.36%. Preferably, the air outlet angle is 84° with the horizontal plane.

[0098] Furthermore, in some embodiments of the present invention, the second air guide plate 220 arches forward and downward, and the cross-section of the second edge 212 is parallel to or at an angle within a second preset angle to the air outlet 101. This arrangement limits the tilt direction of the second air guide plate 220, while also minimizing the resistance of the second air guide plate 220 to the air outlet.

[0099] In some embodiments of the present invention, such as Figures 8 to 13 As shown, the second air guide plate 220 is arranged in a fourth position. In this fourth position, the second air guide plate 220 is located in front of the air outlet 101 and is spaced apart from both the upper and lower edges. The second edge 212 is located below and behind the first edge 211. In the third position, the first edge 211 is located below and in front of the first edge 211 in the fourth position. In the fourth position, the lower edge of the first air guide plate 210 is located in front of the second air guide plate 220. In the fourth position, the upper edge of the third air guide plate 230 is located in front of the second air guide plate 220.

[0100] Compared to the first edge 211 of the second air guide plate 220 in the third position, the first edge 211 of the second air guide plate 220 in the fourth position faces backward and upward. That is to say, the obstruction effect of the second air guide plate 220 on the air outlet 101 is more obvious, so that the air flows out from the gap between the second air guide plate 220 and the upper and lower edges respectively. This arrangement causes the air outlet 101 to be blown out from the upper and lower sides of the second air guide plate 220, so the indoor unit of the air conditioner is in the surround air mode at this time. When the second air guide plate 220 is in the fourth position, the first air guide plate 210 is fixed or moved until the lower edge of the first air guide plate 210 is in front of the second air guide plate 220. Preferably, the lower edge of the first air guide plate 210 is close to the first edge 211 and in contact with the outer surface of the second air guide plate 220. The third air guide plate 230 is fixed or moved until its upper edge is in front of the second air guide plate 220. Preferably, the upper edge of the third air guide plate 230 is located close to the second edge 212 and in contact with the outer surface of the second air guide plate 220. The first air guide plate 210 and the third air guide plate 230 are used to guide the air blown out from the upper and lower sides of the second air guide plate 220, respectively. The wraparound air supply mode breaks the constraint of the idea that "cooling mode should have cold air rising and heating mode should have hot air falling". In this mode, whether in cooling or heating mode, it can accelerate the temperature uniformity of the indoor space where the air conditioner indoor unit is located. When the air conditioner indoor unit needs to provide the same amount of cooling or heating to the indoor space, the upper and lower wraparound air supply mode can shorten the temperature uniformity time of the indoor space and also provide users with better physical comfort, especially in cooling mode.

[0101] like Figure 8 , Figure 10 , Figure 12 As shown, the second air guide plate has multiple fourth positions. Although the positions of the second air guide plate are slightly different, they can all achieve vertical and horizontal airflow. Figure 8The location corresponding to the second air guide plate in the middle, such as Figure 9 As shown, the eleventh color area 250 represents the airflow exiting above the second air guide plate, and the sixth color area 245 represents the airflow exiting below the second air guide plate. At this point, the total airflow can reach a maximum of 705 m³ / h. 3 / h, of which approximately 55% of the total airflow originates from above the second air guide plate, and approximately 45% originates from below the second air guide plate. (and) Figure 10 The location corresponding to the second air guide plate in the middle, such as Figure 11 The seventh color area 247 is the air outlet above the second air guide plate, and the eighth color area 246 is the air outlet below the second air guide plate. At this point, the total airflow can reach a maximum of 680 m³ / h. 3 / h, of which approximately 70% of the total airflow comes from the top of the second air guide plate, and approximately 30% comes from the bottom of the second air guide plate. (and) Figure 12 The location corresponding to the second air guide plate in the middle, such as Figure 13 As shown, the ninth color area 249 represents the air outlet above the second air guide plate, and the tenth color area 248 represents the air outlet below the second air guide plate. At this point, the total airflow can reach a maximum of 689 m³ / h. 3 / h, of which the air volume exiting from above the second air guide plate accounts for approximately 30% of the total air volume, and the air volume exiting from below the second air guide plate accounts for approximately 70% of the total air volume.

[0102] Furthermore, in some embodiments of the present invention, when the first air guide plate 210 is in the first movable position, the first edge 211 is above the first reference plane 103, and the second edge 212 is below and in front of the upper edge of the air outlet 101. When the third air guide plate 230 is in the second movable position, the upper edge of the third air guide plate 230 is above and in front of the lower edge of the air outlet 101, and the third air guide plate 230 is spaced apart from the lower edge of the air outlet 101. This arrangement is more conducive to blowing the air out of the air outlet 101 from both the upper and lower sides.

[0103] In some embodiments of the present invention, such as Figure 1 As shown, when the second air guide plate 220 is in the fourth position, the first air guide plate 210 also has a third movable position. When the first air guide plate 210 is in the third movable position, its upper edge contacts the front surface of the housing 100. When the second air guide plate 220 is in the fourth position, the third air guide plate 230 has a fourth movable position. When the third air guide plate 230 is in the fourth movable position, its lower edge contacts the front surface of the housing 100.

[0104] When the second air guide plate 220 is in the fourth position, and the first air guide plate 210 is in the second movable position and the second air guide plate 220 is in the fourth position, the air outlet 101 is in a closed state.

[0105] In some embodiments of the present invention, the front surface of the housing includes a first region 104, a second region 105, and a third region 106 connected in sequence. The first region 104 has opposing first and second sides, the first side being connected to the upper edge of the air outlet 101, and the second side being located above and in front of the first side. The third region 106 has opposing third and fourth sides, the third side being above and in front of the second side. The second region 105 is connected to the second and third sides. When the first air guide plate 210 is in the second movable position, the upper edge of the first air guide plate 210 contacts the third region 106 or the upper part of the third region 106.

[0106] The first zone 104, the second zone 105 and the third zone 106 form an upward airflow guiding zone, which guides the airflow from the upper edge of the air supply duct 102 connected to the air outlet 101 to blow upward.

[0107] Therefore, those skilled in the art should recognize that although numerous 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 invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. An indoor unit of an air conditioner, comprising an air supply duct, characterized in that, Also includes: The housing has an air outlet connected to the air supply duct; An air guiding device, comprising a first air guide plate, a second air guide plate, and a third air guide plate for guiding air out of the air outlet; the first air guide plate, the second air guide plate, and the third air guide plate are arranged sequentially along the width direction of the air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The extended surface of the air supply duct connected to the upper edge of the air outlet is the first reference plane; The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; the plane containing the first edge and the second edge is a second reference plane; The second air guide plate is fixedly or movably disposed and arranged such that it has a first position, wherein when the second air guide plate is in the first position, the angle between the second reference plane and the first reference plane is within a first preset angle.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The extended surface of the air supply duct connected to the lower edge of the air outlet is the third reference plane; The first preset angle is less than or equal to half the angle between the first reference plane and the third reference plane.

4. The indoor unit of the air conditioner according to claim 1, characterized in that, The extended surface of the air supply duct connected to the upper edge of the air outlet is the first reference plane; The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; the plane containing the first edge and the second edge is a second reference plane; The second air guide plate is fixedly or movably arranged to have a first position, in which the second reference plane is parallel to the air outlet direction when the second air guide plate is in the first position.

5. The indoor unit of the air conditioner according to any one of claims 2 to 4, characterized in that, When the second air guide plate is in the first position, the second air guide plate is located between the first reference plane and the second reference plane; When the second air guide plate is in the first position, the second air guide plate arches upward, and the upper surface of the second air guide plate is tangent to the first reference plane.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, The third air guide plate is either fixedly or movably installed; When the second air guide plate is in the first position, the second edge is in contact with the outer surface of the third air guide plate, the lower edge of the third air guide plate is located in front of and below the upper edge of the third air guide plate, and the third air guide plate is spaced apart from the lower edge of the air outlet. The upper edge of the third air guide plate is located on the second reference plane, or above the second reference plane.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The extended surface of the air supply duct connected to the upper edge of the air outlet is the first reference plane; The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; The second air guide plate is fixedly or movably disposed and arranged such that it has a second position, in which the first edge is on or above the first reference plane and the second edge is in front of or directly below the first edge.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The third air guide plate is located below the second air guide plate; The third air guide plate is fixedly or movably disposed. When the second air guide plate is in the second position, the second edge is in contact with the outer surface or upper edge of the third air guide plate, or the second edge is located above and behind the upper edge of the third air guide plate, and the distance between the second edge and the upper edge of the third air guide plate is less than a preset value; the lower edge of the third air guide plate is located directly below the upper edge of the third air guide plate, and the third air guide plate is spaced apart from the lower edge of the air outlet.

9. The indoor unit of the air conditioner according to claim 6 or 8, characterized in that, The first edge is spaced apart from the upper edge of the air outlet; The lower edge of the first air guide plate is spaced apart from the upper edge of the air outlet; The first air guide plate is fixedly or movably disposed, the upper edge of the first air guide plate is in contact with the surface of the housing, and the lower edge of the first air guide plate is on the first reference plane or above the first reference plane.

10. The indoor unit of the air conditioner according to claim 6 or 8, characterized in that, The second air guide plate is an arc plate, which protrudes forward; The rotation axis of the second air guide plate is located behind the second air guide plate and is equidistant from the first edge and the second edge. The distance from the rotation axis to the first reference plane is less than the distance from the rotation axis to the first edge.

11. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air guide plate, the second air guide plate, and the third air guide plate are all fixedly or movably arranged; The second air guide plate has a first edge and a second edge, with the second edge located below the first edge; The second air guide plate is arranged to have a third position, in which the second edge is located below and behind the first edge; the lower edge or the lower surface of the first air guide plate is in contact with the second air guide plate, and the upper edge of the first air guide plate is located above and in front of the lower edge of the first air guide plate; the lower edge of the third air guide plate is in contact with the lower edge of the air outlet, or located below and behind the lower edge of the air outlet, or in contact with the surface of the housing; the upper edge of the third air guide plate is spaced apart from the second air guide plate.

12. The indoor unit of the air conditioner according to claim 11, characterized in that, When the second air guide plate is in the third position, the second air guide plate arches forward and downward, and the cross-section of the second edge is parallel to or at an angle within a second preset angle to the air outlet direction.

13. The indoor unit of the air conditioner according to claim 12, characterized in that, Both the first air guide plate and the third air guide plate are movably arranged. The first air guide plate has a first movable position and a third movable position, and the third air guide plate has a second movable position and a fourth movable position. The extended surface of the air supply duct connected to the upper edge of the air outlet is the first reference plane; The second air guide plate is arranged to have a fourth position, in which the second air guide plate is located in front of the air outlet and is spaced apart from both the upper edge and the lower edge of the air outlet, and the second edge is located behind and below the first edge; when the second air guide plate is in the third position, the first edge is located in front and below the first edge when the second air guide plate is in the fourth position. When the second air guide plate is in the fourth position and the first air guide plate is in the first movable position, the lower edge of the first air guide plate is in front of the second air guide plate. When the second air guide plate is in the fourth position and the third air guide plate is in the second movable position, the upper edge of the third air guide plate is in front of the second air guide plate.

14. The indoor unit of the air conditioner according to claim 13, characterized in that, When the second air guide plate is in the fourth position, the first edge is above the first reference plane, and the second edge is below and in front of the upper edge of the air outlet; When the third air guide plate is in the second movable position, the upper edge of the third air guide plate is located in front of and above the lower edge of the air outlet, and the third air guide plate is spaced apart from the lower edge of the air outlet.

15. The indoor unit of the air conditioner according to claim 14, characterized in that, When the second air guide plate is in the fourth position and the first air guide plate is in the third movable position, the upper edge of the first air guide plate contacts the front surface of the housing. When the second air guide plate is in the fourth position and the third air guide plate is in the fourth movable position, the lower edge of the third air guide plate contacts the front surface of the housing.

16. The indoor unit of the air conditioner according to claim 15, characterized in that, The front surface of the housing includes a first region, a second region, and a third region connected in sequence. The first region has a first side and a second side, the first side being connected to the upper edge of the air outlet, and the second side being located in front of and above the first side; The third region has opposing third and fourth sides, with the third side positioned in front of and above the second side; The second region is connected to the second side and the third side; When the first air guide plate is in the third movable position, the upper edge of the first air guide plate is in contact with the third region or the area above the third region.

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