Air conditioner indoor unit and its air guide assembly

Abstract

The present invention provides an air conditioner indoor unit and an air guide assembly therefor. The air guide assembly is intended to be mounted at the air outlet of the air conditioner indoor unit to guide the direction of airflow from the outlet. The air guide assembly comprises a plurality of swing blades, each of which is rotatably mounted at the air outlet about its own rotation axis. At least two adjacent swing blades have multiple notches on their edges, so that when the swing blades rotate to a coplanar state, the notches of the two adjacent swing blades are aligned to form a plurality of air distribution outlets. This invention improves the wind-free effect of the air supply from the air conditioner, making it more similar to natural wind.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an air conditioner indoor unit and an air guide component thereof. Background Art

[0002] With the development of the times and the advancement of technology, users not only expect air conditioners to have faster cooling and heating speeds, but also pay more and more attention to the comfort performance of air conditioners.

[0003] Air conditioner indoor units, especially floor-standing units, typically feature multiple swing blades at the air outlet to direct the airflow left and right. However, traditional swing blades only swing air left and right, failing to provide a comfortable, natural airflow experience.

[0004] Some existing technical solutions arrange circular microholes on the pendulum blades, which can achieve windless air supply to a certain extent. However, this dense opening method will cause a large amount of air volume loss to the air supply airflow, and only make the air volume smaller and the wind feel lighter, but it does not have a good natural wind effect. Summary of the Invention

[0005] An object of the present invention is to provide an air conditioner indoor unit and an air guide assembly thereof that overcome the above problems or at least partially solve the above problems.

[0006] The purpose of the present invention is to improve the windless effect of the air flow supplied by the air conditioner and make it closer to the natural wind.

[0007] On the one hand, the present invention provides an air guide assembly for an air conditioner indoor unit, which is used to be installed at the air outlet of the air conditioner indoor unit to guide the air outlet direction of the air outlet, wherein:

[0008] The air guide assembly includes a plurality of swing blades, each of which can be rotatably installed at the air outlet around its own rotation axis, and a plurality of notches are provided on the edges of at least two adjacent swing blades so that when the swing blades rotate to a coplanar state, the notches of the two adjacent swing blades are opposite to each other, thereby being spliced into a plurality of air outlets.

[0009] Optionally, at least part of the air dispersion outlets are triangular air dispersion outlets.

[0010] Optionally, at least a portion of the notch opened on an edge of at least one of the pendulum blades is a triangular notch, and at least a portion of the notch opened on the edge of another pendulum blade adjacent to the edge is a trapezoidal notch with an open top edge, so that when the two pendulum blades rotate to a coplanar state, the triangular notch and the trapezoidal notch are relatively spliced together to form the triangular air dispersion outlet.

[0011] Optionally, the opposite side edges of each of the swing blades are respectively provided with a plurality of the triangular notches and a plurality of the trapezoidal notches.

[0012] Optionally, the rotatable range of each pendulum blade is greater than 180°, so as to allow the triangular notch of each pendulum blade to be opposite to the trapezoidal notch of its adjacent pendulum blade, and also allow the trapezoidal notch of the pendulum blade to be opposite to the triangular notch of the adjacent pendulum blade.

[0013] Optionally, each of the swing blades is in the shape of a long strip extending in the vertical direction, with its rotation axis parallel to its length direction, and the swing blades are arranged in the transverse direction;

[0014] One long side of each of the swing blades is provided with a plurality of triangular notches arranged along the length direction thereof, and the other long side is provided with a plurality of trapezoidal notches arranged along the length direction thereof.

[0015] Optionally, when two adjacent swing blades are in a coplanar state, the ratio of the gap width between the two to the height of the triangular air dispersion outlet is less than 0.07.

[0016] Optionally, the triangular notch is an equilateral triangle, and the trapezoidal notch is an isosceles trapezoid, so that the triangular air vent is an isosceles triangle.

[0017] Optionally, the ratio of the height of the triangular notch to the height of the trapezoidal notch is between 0.9 and 1.1.

[0018] In another aspect, the present invention provides an air conditioner indoor unit, comprising:

[0019] a housing having an air outlet; and

[0020] At least one air guide assembly as described in any one of the above items is installed at the air outlet to guide the air outlet direction of the air outlet.

[0021] The air guide assembly for the indoor unit of the air conditioner of the present invention does not have micro-holes on each swing blade to obtain a breeze effect, thereby avoiding a large loss of air volume due to the dense openings of the swing blades. The present invention provides notches on the edges of the swing blades. When the adjacent swing blades are in a coplanar state (when all the swing blades are in a coplanar state, the swing blades at the air outlet are closed), the notches of the adjacent swing blades are relatively assembled into a dispersed air outlet to achieve a good breeze effect. When the swing blades rotate to the swing position, the notches on the edges of the swing blades make their edges uneven, and also have a breaking up effect on the airflow passing through, making the airflow more natural and comfortable. This way of providing notches will not cause too much energy loss to the airflow, and the strength of the swing blades can also be guaranteed, and the reliability is better.

[0022] Furthermore, the air guide assembly of the present invention makes the air outlet triangular. According to the principles of aerodynamics, when air flows through the triangular air outlet, the flow rate must be lower. The bottom area (at the trapezoidal notch) of the triangular air outlet has less pressure loss, slow flow rate and small turbulent kinetic energy; the top area (at the triangular notch) has greater pressure loss, faster flow rate and greater turbulent kinetic energy. Under the combined effect, the stronger turbulent kinetic energy of the airflow in the top area will be biased toward the bottom area, and in the process of continuous mixing with the airflow in the bottom area, rhythmic disturbances in the spatial flow field will be caused, thus creating a gentle, comfortable and natural windless experience.

[0023] Furthermore, in the air guide assembly of the present invention, each blade has a rotational range greater than 180°. When blade A is closed (coplanar with adjacent blade B), its triangular notch faces the trapezoidal notch of blade B. When the two blades are rotated 180°, the trapezoidal notch of blade A faces the triangular notch of blade B. This creates two possible combinations, further diversifying the air delivery modes.

[0024] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0026] Figure 1 This is a schematic structural diagram of an air-conditioning indoor unit according to an embodiment of the present invention;

[0027] Figure 2 yes Figure 1 A schematic cross-sectional view of an indoor unit of an air conditioner is shown;

[0028] Figure 3 yes Figure 1 A magnified view of point A;

[0029] Figure 4 yes Figure 1 The schematic diagram of the indoor unit of the air conditioner shown is when the swing blades are in a coplanar state;

[0030] Figure 5 yes Figure 4 A schematic cross-sectional view of an indoor unit of an air conditioner is shown;

[0031] Figure 6 yes Figure 4 Enlarged view of point B;

[0032] Figure 7 yes Figure 6 Schematic diagram of the state after each pendulum blade is rotated 180°. DETAILED DESCRIPTION

[0033] Refer to the following Figures 1 to 7 The following describes an air conditioner indoor unit and its air guide assembly according to an embodiment of the present invention. The terms "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral" indicate directions or positions based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific direction. Therefore, they should not be construed as limitations on the present invention.

[0034] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the definition of "first", "second", etc. can explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or more of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0035] Unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," "coupled," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. A person of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0036] The present invention provides an air guide assembly for an indoor air conditioner unit and the indoor air conditioner unit. The indoor air conditioner is the indoor portion of the air conditioner, used to condition the indoor air, such as for cooling / heating, dehumidification, and introducing fresh air. The air guide assembly is mounted at the air outlet 12 of the housing 10 of the indoor air conditioner unit to guide the direction of air outflow from the air outlet 12.

[0037] Figure 1 This is a schematic structural diagram of an air-conditioning indoor unit according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic cross-sectional view of an indoor unit of an air conditioner is shown; Figure 3 yes Figure 1 A magnified view of point A; Figure 4 yes Figure 1The schematic diagram of the air conditioner indoor unit shown is when the swing blades 50 are in a coplanar state; Figure 5 yes Figure 4 A schematic cross-sectional view of an indoor unit of an air conditioner is shown; Figure 6 yes Figure 4 Enlarged view of point B.

[0038] like Figures 1 to 6 As shown, the air guide assembly of the embodiment of the present invention may generally include a plurality of swing blades 50. Each swing blade 50 can be mounted at the air outlet 12 so as to rotate around its own axis. That is, each swing blade 50 rotates around its own axis, rather than all the swing blades 50 rotating around the same axis. Of course, the swing blades 50 can be rotated synchronously by a motion mechanism so as to guide the airflow from the air outlet 12 to the same direction at the same time. Synchronous motion mechanisms are very common in the prior art and will not be described in detail here. For example Figure 2 As shown, the plurality of swing blades 50 are in a state of guiding the wind toward the front side of the air conditioner indoor unit. Figure 5 In the embodiment of the present invention, the plurality of swing blades 50 rotate together to a coplanar state, or a closed state, to close the air outlet 12.

[0039] The individual swing blades 50 of the air guide assembly can be directly and rotatably mounted on the housing 10 of the air conditioner indoor unit. Of course, the air guide assembly can also include an outer frame, and the individual swing blades 50 can be directly and rotatably mounted on the outer frame, which is then mounted on the housing 10. The specific structure is very easy to understand and is not illustrated here with figures.

[0040] like Figure 2 and Figure 5 As shown, a plurality of notches are formed on the edges of at least two adjacent blades 50. When the blades 50 rotate to a coplanar state, the notches of the two adjacent blades 50 are aligned one by one to form a plurality of air outlets.

[0041] For example, there are at least two adjacent blades A and B, specifically, the first side of blade A is adjacent to the second side of blade B. At least the first side of blade A is provided with multiple notches, and the second side of blade B is provided with multiple notches. When blades A and B rotate to a coplanar state, the notches of blade A and blade B are aligned with each other, forming multiple air outlets. For example, some (at least two) of the blades 50 of the air guide assembly may have notches, while the remaining blades 50 may not. Of course, all blades 50 may also have notches. Figures 1 to 6 That is, it illustrates an embodiment in which all the swing blades 50 are provided with notches.

[0042] The air guide assembly for an air conditioner indoor unit according to an embodiment of the present invention does not have micropores on each blade 50 to achieve a breeze effect. Some prior art solutions densely distribute multiple micropores on the blades 50 to achieve a breeze effect. However, the inventors have discovered that this solution results in significant air volume loss in the air supply, and merely reduces the air volume and makes the wind feel lighter, without providing a good natural breeze effect. The embodiment of the present invention, contrary to conventional practice, specifically provides notches on the edges of the blades 50. When adjacent blades 50 are coplanar (when all blades 50 are coplanar, the air outlet 12 of each blade 50 is closed), the notches on the adjacent blades 50 are relatively joined to form a diffuser, achieving a good breeze effect. When the blades 50 rotate to the swinging position, the notches on the edges of the blades 50 create an uneven edge, which also disperses the airflow, making the airflow more natural and comfortable. This method of providing notches does not cause significant energy loss in the airflow, and the strength of the blades 50 is also guaranteed, resulting in better reliability.

[0043] In some embodiments of the present invention, at least part of the air vents are triangular air vents 501. At least part refers to a part or all. Figures 1 to 6 In the embodiment shown, all the air vents are triangular air vents 501. Figure 3 and Figure 6 Of course, a portion of the air vents may be triangular, and the remaining air vents may be other shapes. This form is easy to understand and will not be described in detail.

[0044] The inventors discovered that, according to the principles of aerodynamics, when air flows through the triangular air vent 501, the flow rate must be lower. The bottom area of the triangular air vent 501 (at the trapezoidal notch 51) has less pressure loss, a slow flow rate, and small turbulent kinetic energy; the top area (at the triangular notch 52) has greater pressure loss, a faster flow rate, and greater turbulent kinetic energy. Under the combined effect, the stronger turbulent kinetic energy of the airflow in the top area will be biased toward the bottom area, and in the process of continuous mixing with the airflow in the bottom area, rhythmic disturbances in the spatial flow field will be caused, thus creating a gentle, comfortable, and natural windless experience.

[0045] In some embodiments, please refer to Figure 3 and Figure 6 At least a portion of the notch (referring to a partial notch or the entire notch) opened on one edge of at least one pendulum blade 50 is a triangular notch 52, and at least a portion of the notch (referring to a partial notch or the entire notch) opened on the edge of another pendulum blade 50 adjacent to the edge is a trapezoidal notch 51 with an open top edge, so that when the two pendulum blades 50 rotate to a coplanar state, the triangular notch 52 and the trapezoidal notch 51 are relatively spliced to form a triangular air dispersion outlet 501.

[0046] It should be emphasized that the so-called "triangular" air vents, "triangular" notches and "trapezoidal" notches in the embodiments of the present invention are not strictly limited to specific shapes of triangles or trapezoids in the strict mathematical sense. They only need to be roughly triangular or trapezoidal. For example, their sides can be straight sides or curved sides with a certain curvature, and their corners can be sharp corners or rounded corners.

[0047] Furthermore, the opposite side edges of each blade 50 may be provided with a plurality of triangular notches 52 and a plurality of trapezoidal notches 51. In this way, the blade 50 in the middle can simultaneously form triangular air outlets 501 with the adjacent blades 50 on both sides.

[0048] In some embodiments, as Figures 1 to 6 As shown, each pendulum blade 50 is in the form of a vertically extending, elongated strip, with its rotation axis parallel to its length. The blades 50 are arranged in a transverse direction. This air guide assembly, formed of vertically elongated, strip-shaped pendulum blades 50, is particularly suitable for indoor air conditioners with vertically shaped air outlets 12, such as cabinet air conditioners or upright wall-mounted units. In other embodiments, each pendulum blade 50 may extend horizontally or in other directions, allowing for application in conventional horizontally shaped, wall-mounted indoor air conditioners. This description is omitted here.

[0049] For the vertically extending pendulum blade solution, one long side of each pendulum blade 50 (the two sides in the width direction of the pendulum blade 50 are longer, referred to as the two long sides) can be provided with a plurality of triangular notches 52 arranged along its length, and the other long side can be provided with a plurality of trapezoidal notches 51 arranged along its length. In this way, when each pendulum blade 50 is rotated to the aforementioned coplanar state, as shown in FIG. Figure 6 , multiple rows of triangular air diffusers 501 will be formed, and the number of rows is the total number of the swing blades 50 minus one.

[0050] The inventors have discovered that factors such as the shape and size of the triangular air diffuser 501 have a certain impact on the aforementioned air flow breeze effect. To this end, the inventors have determined some preferred solutions through calculation. Specifically, when two adjacent pendulum blades 50 are in a coplanar state, the ratio of the gap width between the two to the height of the triangular air diffuser 501 is less than 0.07, preferably less than 0.06, so that the gap width is smaller and the triangular air diffuser 501 is more complete, so that its disturbance effect is better. In addition, it is preferred that the triangular gap 52 is an equilateral triangle and the trapezoidal gap 51 is an isosceles trapezoid, so that the triangular air diffuser 501 is an isosceles triangle, so that the airflow of the triangular gap 52 and the airflow of the trapezoidal gap 51 are exactly aligned, so as to produce a stronger mixing disturbance effect. The ratio of the height of the triangular gap 52 to the height of the trapezoidal gap 51 can also be between 0.9 and 1.1, more preferably between 0.95 and 1.05, for example, 1, to control the ratio of the airflow passing through the two to achieve the optimal mixing disturbance effect.

[0051] Figure 7 yes Figure 6 The diagram shows a state where each of the swing blades 50 is rotated 180°.

[0052] In some embodiments, the rotatable range of each pendulum blade 50 can be made greater than 180°, so as to allow the triangular notch 52 of each pendulum blade 50 to be opposite to the trapezoidal notch 51 of its adjacent pendulum blade 50, and to allow the trapezoidal notch 51 of the pendulum blade 50 to be opposite to the triangular notch 52 of the adjacent pendulum blade 50.

[0053] Specifically, for example Figure 6 As shown, the triangular notches 52 of the three swing blades 50 are all located on the right side, and the trapezoidal notches 51 are located on the left side, so as to form two rows of triangular air outlets 501 with the tips facing left. Figure 7 In the illustrated configuration, the triangular notches 52 of the three blades 50 are all located on the left, while the trapezoidal notches 51 are located on the right, forming two rows of triangular air vents 501 with their tips facing right. The different orientations of the tips of the triangular air vents 501 inevitably lead to different airflow directions. Therefore, in this embodiment of the present invention, different breeze effects can be achieved by rotating the blades 50 180°.

[0054] Of course, in order to ensure that the air outlet 12 can be normally closed after the swing blade 50 rotates 180°, the rotation axis of the swing blade 50 can be located in the center of its width direction.

[0055] An embodiment of the present invention further provides an air conditioner indoor unit. The air conditioner indoor unit generally includes a housing 10 and at least one air guide assembly as described in any of the above embodiments. Housing 10 defines an air outlet for directing airflow (e.g., cold air, hot air, or fresh air) within housing 10 toward the indoor environment, thereby regulating the indoor environment. The air guide assembly is mounted at air outlet 12 to direct the direction of airflow from air outlet 12.

[0056] like Figures 1 to 4 As shown, the air conditioner indoor unit can be a cabinet unit, which includes a housing 10. Housing 10 is in the shape of an upright strip. Housing 10 defines a storage space for accommodating the various components of the air conditioner indoor unit. Housing 10 has two air outlets 12 arranged vertically on the front side, each of which is equipped with an air guide.

[0057] like Figure 2 As shown, the indoor unit of the air conditioner can be the indoor portion of a split-type room air conditioner that utilizes a vapor compression refrigeration cycle system for cooling / heating. A heat exchanger 30 and a fan 40 are provided inside the housing 10. The heat exchanger 30 and the throttling device are connected to the compressor, condenser, and other refrigeration components located outside the air conditioner via pipelines, forming a vapor compression refrigeration cycle system. Under the action of the fan 40, indoor air enters the interior of the housing 10 through the air inlet provided therein. After completing forced convection heat exchange with the heat exchanger 30, heat exchange air is formed and enters the air duct 20. It is then blown toward the indoor environment through the air outlet 12, where it receives directional guidance from a plurality of swing blades 50. The fan 40 is preferably a cross-flow fan with an axis parallel to the longitudinal direction of the housing 10, and is disposed at the inlet of the air duct 20.

[0058] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may 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 deemed to cover all such other variations or modifications.

Claims

1. An air guide assembly for an air conditioner indoor unit, which is used to be installed at the air outlet of the air conditioner indoor unit to guide the air outlet direction of the air outlet, characterized in that: The air guide assembly includes a plurality of swing blades, each of which is rotatably mounted at the air outlet about its own rotation axis, and a plurality of notches are formed on the edges of at least two adjacent swing blades, so that when the swing blades rotate to a coplanar state, the notches of the two adjacent swing blades are aligned with each other to form a plurality of air outlets; the rotation axis of the swing blade is located at the center of the width direction of the swing blade; At least some of the air dispersion outlets are triangular air dispersion outlets; At least part of the notch formed on one edge of at least one of the swing blades is a triangular notch, and at least part of the notch formed on the edge of another swing blade adjacent to the edge is a trapezoidal notch with an open top edge, so that when the two swing blades rotate to a coplanar state, the triangular notch and the trapezoidal notch are relatively spliced to form the triangular air dispersion outlet; The ratio of the height of the triangular notch to the height of the trapezoidal notch is between 0.9 and 1.

1.

2. The air guide assembly according to claim 1, characterized in that: The opposite side edges of each of the swing blades are respectively provided with a plurality of triangular notches and a plurality of trapezoidal notches.

3. The air guide assembly according to claim 2, characterized in that: The rotatable range of each of the pendulum blades is greater than 180°, so as to allow the triangular notch of each pendulum blade to be opposite to the trapezoidal notch of its adjacent pendulum blade, and also to allow the trapezoidal notch of the pendulum blade to be opposite to the triangular notch of the adjacent pendulum blade.

4. The air guide assembly according to claim 2, characterized in that: Each of the swing blades is in the shape of a long strip extending in the vertical direction, with its rotation axis parallel to its length direction, and the swing blades are arranged in the transverse direction; One long side of each of the swing blades is provided with a plurality of triangular notches arranged along the length direction thereof, and the other long side is provided with a plurality of trapezoidal notches arranged along the length direction thereof.

5. The air guide assembly according to claim 4, characterized in that: When two adjacent swing blades are in a coplanar state, the ratio of the gap width between the two and the height of the triangular air dispersion port is less than 0.

07.

6. The air guide assembly according to claim 1, characterized in that: The triangular notch is an equilateral triangle, and the trapezoidal notch is an isosceles trapezoid, so that the triangular air vent is an isosceles triangle.

7. An air conditioner indoor unit, characterized in that include: A housing having an air outlet; and At least one air guide assembly according to any one of claims 1 to 6, which is installed at the air outlet to guide the air outlet direction of the air outlet.

Images