Air conditioner indoor unit

Abstract

The utility model provides a kind of air conditioner indoor unit, including shell and wind baffle. First air outlet is provided on shell. The rear surface of wind baffle is arched back. Wind baffle is set at first air outlet, configured so that airflow flows from the gap between wind baffle and the edge of first air outlet. Air conditioner indoor unit is opened, and the first air outlet provided on shell is opened to blow airflow. The rear surface of wind baffle is arched back, guiding airflow to flow from the gap between wind baffle and air outlet edge, avoiding direct blowing and avoiding discomfort to users. The rear surface of wind baffle can also shunt airflow, expand air supply angle and achieve more uniform indoor air circulation.

Description

Technical Field

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

[0002] Some cabinet air conditioners on the market have air vents on the front of their indoor units. When the air conditioner is turned on, the air vents on the front of the unit open, and the airflow blows directly at the user, which can easily cause discomfort. Utility Model Content

[0003] In view of the above problems, this utility model is proposed to provide an indoor unit of an air conditioner that overcomes or at least partially solves the above problems, allowing airflow to be blown out from the front air outlet to the surrounding area of ​​the opening, avoiding direct airflow to the user and meeting the diverse airflow needs of the user.

[0004] Specifically, this utility model provides an indoor unit for an air conditioner, comprising:

[0005] A housing, on which a first air outlet is provided;

[0006] A wind deflector, the rear surface of which is arched backward; the wind deflector is disposed at the first air outlet and configured such that airflow flows out from the gap between the edge of the wind deflector and the first air outlet.

[0007] Optionally, the first air outlet is circular, and the outer contour of the cross section of the wind deflector block perpendicular to the axis of the first air outlet is circular.

[0008] The intersection of the rear surface of the wind deflector and the reference plane is an elliptical arc, and the major axis of the ellipse is perpendicular to the axis of the first air outlet; the reference plane is a plane containing the axis of the first air outlet.

[0009] Optionally, the first air outlet is circular, and the outer contour of the cross section of the wind deflector block perpendicular to the axis of the first air outlet is circular.

[0010] The rear surface of the windbreak block includes a central region and a peripheral region located in the central region;

[0011] The intersection line between the central region and the reference plane includes two symmetrically arranged arcs or two symmetrically arranged line segments; the reference plane is a plane containing the axis of the first air outlet;

[0012] The intersection line between the outer region and the reference plane includes two symmetrically arranged elliptical arcs; the major axis of the ellipse containing the elliptical arc is perpendicular to the axis of the first air outlet.

[0013] Optionally, the ratio between the major axis and the minor axis of the ellipse containing the elliptical arc is 1.5 to 2.

[0014] Optionally, the wind deflector is movably disposed at the first air outlet along the axis of the first air outlet.

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

[0016] A fan is disposed within the housing and configured to direct airflow toward the first air outlet;

[0017] The fan speed acquisition module is configured to acquire the speed of the fan, so as to control the movement of the baffle block along the axis of the first air outlet according to the speed.

[0018] Optionally, the indoor unit of the air conditioner further includes:

[0019] A diversion device is provided inside the housing; the air duct is connected to the first air outlet; the diversion device is located inside the air duct and inside the wind baffle; the diversion device is configured to direct part of the airflow to one side of the first air outlet and part of the airflow to the other side of the first air outlet.

[0020] Optionally, the air duct has a main air duct section and a first air duct section connected to the front end of the main air duct section, the first air duct section being connected to the first air outlet; the main air duct section includes a first air duct wall and a second air duct wall disposed opposite to each other; one air duct wall of the first air duct section is connected to the first air duct wall, and the other air duct wall is connected to the second air duct wall; the second air duct wall is configured such that the airflow direction within the main air duct section is towards one side of the housing; and

[0021] The diversion device is disposed at the front end of the main air duct section, or disposed within the first air duct section; the diversion device includes:

[0022] The first air distribution plate is curved; the surface of the first air distribution plate facing the second air duct wall is a concave surface so that the airflow flows to the corresponding side of the first air outlet; the first air distribution plate is disposed adjacent to the second air duct wall.

[0023] The second air distribution plate is curved; the second air distribution plate is located on the side of the first air distribution plate away from the second air duct wall, and the surface of the second air distribution plate facing the first air distribution plate is a concave surface; the curvature of the first air distribution plate is greater than that of the second air distribution plate; the air outlet edge of the second air distribution plate is close to the center of the rear surface of the wind deflector block.

[0024] The third air distribution plate is disposed on the side of the second air distribution plate opposite to the first air distribution plate; the third air distribution plate is flat and is configured such that the airflow flows to the corresponding other side of the first air outlet.

[0025] Optionally, the indoor unit of the air conditioner further includes:

[0026] A partition is disposed within the main air duct section and configured to divide the main air duct section into a first section and a second section; the first section is located above or below the second section.

[0027] The first air outlet is located on the front wall of the housing;

[0028] The housing is also provided with a second air outlet and a third air outlet; both the second air outlet and the third air outlet extend in a vertical direction, the second air outlet is provided on one side wall of the housing, and the third air outlet is provided on the other side wall of the housing;

[0029] The air duct also has a second air duct section and a third air duct section connected to the front end of the main air duct section;

[0030] The second air duct section is connected to the second air outlet, and the third air duct section is connected to the third air outlet;

[0031] The first section is connected to the first air duct section; the second section is connected to the second air duct section and the third air duct section.

[0032] Optionally, connecting posts are provided on the upper and lower sides of the windbreak block;

[0033] The indoor unit of the air conditioner also includes a drive device, which is disposed inside the housing and connected to the connecting column to drive the connecting column to move along the axis of the first air outlet.

[0034] In the indoor unit of this air conditioner, when the indoor unit is turned on, the first air outlet on the casing opens and blows out airflow. The rear surface of the baffle block arches backward, guiding the airflow out through the gap between the baffle block and the edge of the first air outlet, so that the airflow blows out from the forward-facing first air outlet to all sides of the opening, avoiding direct airflow and preventing user discomfort. The rear surface of the baffle block can also divert the airflow and widen the air delivery angle, achieving more uniform indoor air circulation.

[0035] 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

[0036] 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:

[0037] Figure 1 This is a schematic structural diagram of the housing of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0038] Figure 2 yes Figure 1 BB-direction sectional view;

[0039] Figure 3 yes Figure 1 Sectional view along axis AA;

[0040] Figure 4 This is a schematic structural diagram of the housing of an indoor unit of an air conditioner according to an embodiment of the present utility model;

[0041] Figure 5 This is a schematic diagram of airflow passing through a windbreak block according to an embodiment of the present invention. Detailed Implementation

[0042] The following reference Figures 1 to 5 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 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] Figure 1 This is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 5 This utility model provides an indoor unit for an air conditioner, including a housing 100 and a baffle block 150. A first air outlet 103 is provided on the housing 100. The rear surface of the baffle block 150 arches rearward. The baffle block 150 is disposed at the first air outlet 103, configured such that airflow exits from the gap between the baffle block 150 and the edge of the first air outlet 103.

[0047] When the indoor unit of the air conditioner is turned on, the first air outlet 103 on the casing 100 opens and blows out airflow. The rear surface of the baffle block 150 arches backward, guiding the airflow out through the gap between the baffle block 150 and the edge of the first air outlet, so that the airflow blows out from the forward-facing first air outlet to all sides of the opening, avoiding direct airflow and preventing user discomfort. The rear surface of the baffle block 150 can also divert the airflow and widen the air delivery angle to achieve more uniform indoor air circulation.

[0048] In some embodiments of this utility model, such as Figure 1As shown, the first air outlet 103 is circular, and the outer contour of the cross-section of the baffle block 150 perpendicular to the axis of the first air outlet 103 is circular. The intersection line between the rear surface of the baffle block 150 and the reference plane is an elliptical arc, and the major axis of the ellipse is perpendicular to the axis of the first air outlet 103. The reference plane is a plane containing the axis of the first air outlet 103.

[0049] The elliptical rear surface mates with the circular first air outlet 103, as... Figure 5 As shown, the airflow diffuses outwards along the elliptical arc rear surface, resulting in a wider airflow angle compared to a single flat windbreak block 150.

[0050] In some other embodiments of this invention, the rear surface of the wind deflector 150 includes a central region and a peripheral region located within the central region. The intersection of the central region and the reference plane comprises two symmetrically arranged arcs. The reference plane is a plane containing the axis of the first air outlet 103. The intersection of the peripheral region and the reference plane comprises two symmetrically arranged elliptical arcs. The major axis of the ellipse containing the elliptical arcs is perpendicular to the axis of the first air outlet 103.

[0051] Alternatively, in some other embodiments of this invention, the intersection line between the central region and the reference plane comprises two symmetrically arranged line segments.

[0052] In some embodiments of this utility model, such as Figure 5 As shown, the ratio between the major axis and the minor axis of the ellipse containing the elliptical arc is between 1.5 and 2.

[0053] In some embodiments of this utility model, such as Figure 1 As shown, the wind deflector 150 is movably disposed at the first air outlet 103 along the axis of the first air outlet 103.

[0054] By moving the wind deflector 150 along the axis of the first air outlet 103, the size of the gap between the wind deflector 150 and the edge of the first air outlet 103 can be changed, thereby adjusting the airflow. As the wind speed changes, the air outlet changes accordingly, minimizing wind loss and avoiding airflow loss. For example, if the wind speed increases, the wind deflector 150 moves outward along the axis of the first air outlet 103, increasing the gap to adapt to the change in wind speed and reduce wind loss.

[0055] In some embodiments of this utility model, the indoor unit of the air conditioner further includes a fan and a fan speed acquisition module. The fan is disposed within the housing 100 and configured to direct airflow toward the first air outlet 103. The fan speed acquisition module is configured to acquire the fan speed to control the movement of the baffle block 150 along the axis of the first air outlet 103 according to the speed.

[0056] Wind loss is determined by the size of the air duct. When the wind speed is high, the air duct needs to be wider; when the wind speed is low, the air duct needs to be narrower. This change in air duct width is achieved by a hemispherical baffle. Generally, the higher the speed setting, the greater the wind speed. To reduce wind loss, the width of the air duct usually needs to be increased accordingly. The fan speed setting is obtained through a fan speed setting acquisition module, and then the movement of the baffle 150 along the axis of the first air outlet 103 is controlled based on the fan speed setting to adjust the gap size, thereby adjusting the width of the air duct and reducing wind loss.

[0057] In some embodiments of this utility model, controlling the movement of the baffle block 150 along the axis of the first air outlet 103 according to the gear position specifically involves controlling the direction and distance of movement of the baffle block 150 along the axis of the first air outlet 103 according to the gear position. Based on the Darcy-Weisbach formula for duct friction: It can be seen that, as the wind speed V increases while other parameters remain constant, to minimize the wind loss ΔP, the duct diameter Dh needs to increase. Where: ΔP is the wind loss (Pa), f is the friction coefficient (related to pipe wall roughness and Reynolds number), and Dh... h Let V be the duct diameter (m), V be the wind speed (m / s), ρ be the air density (kg / m³), and L be the duct length (m). This is based on the Darcy-Weisbach formula for duct friction. The changes can be used to obtain the formula: As can be seen from the above formula, the diameter of the air duct can be determined according to the wind speed, that is, the diameter of the air duct can be dynamically adjusted according to the wind speed.

[0058] For example, when the air density ρ = 1.2 kg / m³, the coefficient of friction of the duct wall f = 0.02, and the maximum air loss per unit length of duct is required to be no more than ΔP / L = 0.5 Pa / m, substituting the data to calculate the initial duct diameter yields: Dh / V² = 0.024. Therefore, the ratio of the air conditioner duct diameter to the square of the wind speed is 0.024. As the wind speed increases, the diameter increases according to the change in this ratio, thus determining the distance the air guide mechanism extends or retracts, ensuring minimal air loss and guaranteed airflow.

[0059] In some embodiments of this utility model, such as Figure 2 As shown, the indoor unit of the air conditioner also includes a flow divider. An air duct is also provided inside the housing 100, and the air duct is connected to the first air outlet 103. The flow divider is located within the air duct and inside the baffle block 150. The flow divider is configured to direct a portion of the airflow to one side of the first air outlet 103 and a portion of the airflow to the other side of the first air outlet 103.

[0060] The airflow diversion device can adjust the airflow rate on one and the other side of the first air outlet 103, correspondingly adjusting the amount of airflow flowing out on both sides of the first air outlet 103, ultimately making the amount of airflow flowing out on both sides of the first air outlet 103 equal or nearly equal. The airflow diversion device directly guides the airflow to one and the other side of the first air outlet 103. Compared to the airflow first flowing to the rear surface of the wind deflector 150 and then being guided by the rear surface of the wind deflector 150 to flow out around the wind deflector 150, the airflow diversion device can greatly reduce airflow loss, making the airflow flowing out from one and the other side of the first air outlet 103 faster, and the airflow can cover a farther area, resulting in a more uniform indoor temperature.

[0061] In some embodiments of this utility model, such as Figure 2 As shown, the air duct has a main air duct section 130 and a first air duct section connected to the front end of the main air duct section 130, the first air duct section being connected to the first air outlet 103. The main air duct section 130 includes a first air duct wall 131 and a second air duct wall 132 disposed opposite to each other. One air duct wall of the first air duct section is connected to the first air duct wall 131, and the other air duct wall is connected to the second air duct wall 132. The second air duct wall 132 is configured such that the airflow direction within the main air duct section 130 is towards one side of the housing 100. A flow diversion device is disposed at the front end of the main air duct section 130. The flow diversion device includes a first air diversion plate 940, a second air diversion plate 950, and a third air diversion plate 960. The first air diversion plate 940 is curved. The surface of the first air diversion plate 940 facing the second air duct wall 132 is a concave surface, so that the airflow flows towards the corresponding side of the first air outlet 103. The first air diversion plate 940 is disposed adjacent to the second air duct wall 132. The second air distributor 950 is curved. The second air distributor 950 is located on the side of the first air distributor facing away from the second air duct wall 132, and the surface of the second air distributor 950 facing the first air distributor 940 is concave. The curvature of the first air distributor 940 is greater than that of the second air distributor 950. The air outlet edge of the second air distributor 950 is near the center of the rear surface of the baffle block 150. The third air distributor 960 is located on the side of the second air distributor 950 facing away from the first air distributor 940. The third air distributor 960 is flat and is configured such that the airflow is directed to the corresponding opposite side of the first air outlet 103.

[0062] The first air distribution plate 940 is used to guide a portion of the airflow entering the first air duct section towards the gap near the second air duct wall 132. By setting the first air distribution plate 940, the resistance to the airflow flowing from the main air duct section 130 into the gap near the second air duct wall 132 can also be reduced. The second air distribution plate 950 divides the airflow from the main air duct section 130 into two approximately equal parts. One part of the airflow enters the gap near the second air duct wall 132 under the guidance of the surface of the second air distribution plate 950 facing the first air distribution plate 940 and the first air distribution plate 940. The other part of the airflow enters the gap near the first air duct wall 131 under the guidance of the surface of the second air distribution plate 950 facing the third air distribution plate 960 and the third air distribution plate 960.

[0063] In some embodiments of this utility model, the diversion device is disposed within the first air duct section.

[0064] In some embodiments of this utility model, such as Figures 2 to 4 As shown, the indoor unit of the air conditioner also includes a partition 160 disposed within the main air duct section 130, configured to divide the main air duct section 130 into a first section 135 and a second section 134. The first section 135 is located above the second section 134. A first air outlet 103 is disposed on the front wall of the housing 100. The housing 100 is also provided with a second air outlet 101 and a third air outlet 102. Both the second air outlet 101 and the third air outlet 102 extend vertically, with the second air outlet 101 disposed on one side wall of the housing 100 and the third air outlet 102 disposed on the other side wall of the housing 100. The air duct also has a second air duct section 110 and a third air duct section 120 connected to the front end of the main air duct section 130. The second air duct section 110 is connected to the second air outlet 101, and the third air duct section 120 is connected to the third air outlet 102. The first section 135 communicates with the first air duct section. The second section 134 connects to the second air duct section 110 and the third air duct section 120.

[0065] The airflow in the first section 135 passes through the first air duct section and exits from the first air outlet 103 corresponding to the first air duct section. The airflow in the second section 134 passes through the second and third air duct sections and exits from the second air outlet 101 corresponding to the second air duct section 110 and the third air outlet 102 corresponding to the third air duct section 120. The partition 160 is designed to prevent the airflow from the second air outlet 101 and the third air outlet 102 on the left and right sides from interfering with the airflow from the first air outlet 103, thus avoiding affecting the air delivery effect of the first air outlet 103, the second air outlet 101, and the third air outlet 102.

[0066] In some embodiments of this utility model, connecting columns are provided on the upper and lower sides of the wind deflector 150. The indoor unit of the air conditioner also includes a drive device, which is disposed inside the housing 100 and connected to the connecting column to drive the connecting column to move along the axis of the first air outlet 103.

[0067] The drive unit drives the connecting column to move along the axis of the first air outlet 103, thereby driving the wind baffle 150 to move along the axis of the first air outlet 103. The movement of the wind baffle 150 along the axis of the first air outlet 103 is controlled according to the fan speed to adjust the gap size and thus adjust the width of the air duct to reduce wind loss.

[0068] 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, on which a first air outlet is provided; A wind deflector, the rear surface of which is arched backward; the wind deflector is disposed at the first air outlet and configured such that airflow flows out from the gap between the edge of the wind deflector and the first air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air outlet is circular, and the outer contour of the cross section of the wind deflector block perpendicular to the axis of the first air outlet is circular. The intersection of the rear surface of the wind deflector and the reference plane is an elliptical arc, and the major axis of the ellipse is perpendicular to the axis of the first air outlet; the reference plane is a plane containing the axis of the first air outlet.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The first air outlet is circular, and the outer contour of the cross section of the wind deflector block perpendicular to the axis of the first air outlet is circular. The rear surface of the windbreak block includes a central region and a peripheral region located in the central region; The intersection line between the central region and the reference plane includes two symmetrically arranged arcs or two symmetrically arranged line segments; the reference plane is a plane containing the axis of the first air outlet; The intersection line between the outer region and the reference plane includes two symmetrically arranged elliptical arcs; the major axis of the ellipse containing the elliptical arc is perpendicular to the axis of the first air outlet.

4. The indoor unit of the air conditioner according to claim 2 or 3, characterized in that, The ratio between the major axis and the minor axis of the ellipse containing the elliptical arc is between 1.5 and 2.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The windbreak block is movably disposed at the first air outlet along the axis of the first air outlet.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, Also includes: A fan is disposed within the housing and configured to direct airflow toward the first air outlet; The fan speed acquisition module is configured to acquire the speed of the fan, so as to control the movement of the baffle block along the axis of the first air outlet according to the speed.

7. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: A diversion device is provided inside the housing; the air duct is connected to the first air outlet; the diversion device is located inside the air duct and inside the wind baffle; the diversion device is configured to direct part of the airflow to one side of the first air outlet and part of the airflow to the other side of the first air outlet.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The air duct has a main air duct section and a first air duct section connected to the front end of the main air duct section, the first air duct section being connected to the first air outlet; the main air duct section includes a first air duct wall and a second air duct wall disposed opposite to each other; one air duct wall of the first air duct section is connected to the first air duct wall, and the other air duct wall is connected to the second air duct wall; the second air duct wall is configured such that the airflow direction within the main air duct section is towards one side of the housing; and The diversion device is disposed at the front end of the main air duct section, or disposed within the first air duct section; the diversion device includes: The first air distribution plate is curved; the surface of the first air distribution plate facing the second air duct wall is a concave surface so that the airflow flows to the corresponding side of the first air outlet; the first air distribution plate is disposed adjacent to the second air duct wall. The second air distribution plate is curved; the second air distribution plate is located on the side of the first air distribution plate away from the second air duct wall, and the surface of the second air distribution plate facing the first air distribution plate is a concave surface; the curvature of the first air distribution plate is greater than that of the second air distribution plate; the air outlet edge of the second air distribution plate is close to the center of the rear surface of the wind deflector block. The third air distribution plate is disposed on the side of the second air distribution plate opposite to the first air distribution plate; the third air distribution plate is flat and is configured such that the airflow flows to the corresponding other side of the first air outlet.

9. The indoor unit of the air conditioner according to claim 8, characterized in that, Also includes: A partition is disposed within the main air duct section and configured to divide the main air duct section into a first section and a second section; the first section is located above or below the second section. The first air outlet is located on the front wall of the housing; The housing is also provided with a second air outlet and a third air outlet; both the second air outlet and the third air outlet extend in a vertical direction, the second air outlet is provided on one side wall of the housing, and the third air outlet is provided on the other side wall of the housing; The air duct also has a second air duct section and a third air duct section connected to the front end of the main air duct section; The second air duct section is connected to the second air outlet, and the third air duct section is connected to the third air outlet; The first section is connected to the first air duct section; the second section is connected to the second air duct section and the third air duct section.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, Connecting posts are provided on the upper and lower sides of the windbreak block; The indoor unit of the air conditioner also includes a drive device, which is disposed inside the housing and connected to the connecting column to drive the connecting column to move along the axis of the first air outlet.

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