WO2023082633A1

WO2023082633A1 - Air conditioner indoor unit and air guide assembly thereof

Info

Publication number: WO2023082633A1
Application number: PCT/CN2022/098937
Authority: WO
Inventors: 刘宏宝; 王永涛; 王晓刚; 尹晓英; 张鹏
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2021-11-09
Filing date: 2022-06-15
Publication date: 2023-05-19
Also published as: CN114060921A

Abstract

An air conditioner indoor unit and an air guide assembly thereof. The air guide assembly is used for being mounted at an air outlet of the air conditioner indoor unit so as to guide an air outlet direction of the air outlet, wherein the air guide assembly comprises a plurality of swing blades, each swing blade can be mounted at the air outlet around a rotating axis of the swing blade in a rotating manner, and a plurality of notches are respectively formed in the edges of at least two adjacent swing blades, so that when the two adjacent swing blades rotate to be in a coplanar state, the notches of the two adjacent swing blades are opposite in a one-to-one manner so as to be assembled into a plurality of air dispersing openings. The present invention improves a windless effect of air supply airflow of the air conditioner, and the air supply airflow is closer to natural wind.

Description

Air conditioner indoor unit and its air guide assembly

technical field

The invention relates to the technical field of air conditioning, in particular to an air conditioner indoor unit and an air guide assembly thereof.

Background technique

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

Air conditioner indoor units, especially vertical air conditioner indoor units are usually provided with a plurality of swing leaves at the air outlet to guide the left and right air outlet directions. However, the traditional swing leaves can only swing the wind left and right, and cannot satisfy the wind supply experience of natural wind without wind feeling.

Some existing technical schemes arrange circular micro-holes on the swing blades, which can achieve windless air supply to a certain extent, but this dense opening method will bring a large air volume loss to the air supply airflow, and only It is to make the air volume smaller and the wind feel lighter, but it does not have a good natural wind effect.

Contents of the invention

The object of the present invention is to provide an air conditioner indoor unit and an air guide assembly thereof which overcome the above problems or at least partly solve the above problems.

The purpose of the present invention is to improve the windless effect of the air supply air flow of the air conditioner, making it closer to natural wind.

In one aspect, 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,

The wind guide assembly includes a plurality of swing leaves, each of which is rotatably mounted on the air outlet around its own rotation axis, and at least two adjacent swing leaves are respectively provided with a plurality of notches on their edges, When the two adjacent swing leaves rotate to the coplanar state, the notches of the two adjacent swing leaves face each other to form a plurality of air diffusers.

Optionally, at least some of the air diffusers are triangular air diffusers.

Optionally, at least part of the notch opened on one edge of at least one swing leaf is a triangular notch, and at least part of the notch opened on the edge of another swing leaf adjacent to this edge is a trapezoidal notch with an open top edge , so that when the two swing vanes rotate to the coplanar state, the triangular notch and the trapezoidal notch are joined together to form the triangular air diffuser.

Optionally, a plurality of triangular notches and a plurality of trapezoidal notches are formed on opposite side edges of each swing leaf.

Optionally, the rotatable range of each swing leaf is larger than 180°, so as to allow the triangular notch of each swing leaf to face the trapezoidal notch of its adjacent swing leaf, and allow the swing The trapezoidal notch of the leaf is opposite to the triangular notch of the adjacent swinging leaf.

Optionally, each of the swing leaves is in the shape of a long strip extending in the vertical direction, its rotation axis is parallel to its length direction, and each of the swing leaves is arranged in the transverse direction;

One long side of each swing leaf is provided with a plurality of triangular notches arranged along its length direction, and the other long side is provided with a plurality of trapezoidal notches arranged along its length direction.

Optionally, when two adjacent swing leaves are coplanar, the ratio of the width of the gap between them to the height of the triangular air diffuser is less than 0.07.

Optionally, the triangular notch is an equilateral triangle, and the trapezoidal notch is an isosceles trapezoid, so that the triangular air diffuser is an isosceles triangle.

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

In another aspect, the present invention provides an air conditioner indoor unit, which includes:

a casing, which is provided with an air outlet; and

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

The air guide assembly for the indoor unit of the air conditioner of the present invention does not open micro holes on each swing blade to obtain a breeze effect, thereby avoiding a large loss of air volume caused by dense openings of the swing blades to the air supply airflow. In the present invention, notches are respectively opened on the edges of the swing leaves, and when the adjacent swing leaves are in the coplanar state (when all the swing leaves are in the coplanar state, each swing leaf closes the air outlet), the gaps of the adjacent swing leaves are relatively combined into discrete Air vents for a nice breeze effect. When the swing blade is rotated to the wind swing position, the notch on the edge of the swing blade makes the edge uneven, and also has the effect of breaking up the airflow passing through, making the airflow more natural and comfortable. This way of opening the gap will not bring too much energy loss to the airflow, and the strength of the swing blade can also be guaranteed, and the reliability is better.

Furthermore, the air guide assembly of the present invention makes the air diffuser opening in a triangular shape, and according to aerodynamic principles, when an airflow passes through the triangular air diffuser opening, the flow velocity must be lower. The bottom area of the triangular air diffuser (at the trapezoidal gap) has less pressure loss, slow flow velocity and small turbulent kinetic energy; the top edge area (triangular gap) has large pressure loss, fast flow velocity and large turbulent kinetic energy. Under the combined effect, the strong turbulent kinetic energy of the airflow in the top area will be biased towards the bottom area, and the rhythmic disturbance of the space flow field will be caused during the process of continuous mixing with the airflow in the bottom area, so that a soft, comfortable and natural windless environment will be produced. experience.

Further, in the air guide assembly of the present invention, the rotatable range of each swing leaf is greater than 180°, and when the A swing leaf is in a closed state (coplanar with the adjacent B swing leaf), the triangular notch can be aligned with the The trapezoidal notches of the pendulum leaves of B are opposite. And when the two swing leaves rotate 180°, the trapezoidal notch of the A swing leaf can be opposite to the triangular notch of the B swing leaf. In this way, two matching methods are formed, making the air supply mode more diverse.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic structural view of an air conditioner indoor unit according to an embodiment of the present invention;

Fig. 2 is a schematic sectional view of the air conditioner indoor unit shown in Fig. 1;

Fig. 3 is an enlarged view of place A of Fig. 1;

Fig. 4 is a schematic diagram of the air conditioner indoor unit shown in Fig. 1 when the swing blades are in a coplanar state;

Fig. 5 is a schematic sectional view of the air conditioner indoor unit shown in Fig. 4;

Fig. 6 is an enlarged view at B of Fig. 4;

Fig. 7 is a schematic diagram of the state after each swing blade shown in Fig. 6 is rotated by 180°.

Detailed ways

Reference will now be made in detail to embodiments of the invention, one or more examples of which are illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in this invention without departing from the scope or spirit of this invention. For example, features illustrated or described as part of one embodiment can be used with another embodiment to yield still a further embodiment. Thus, it is intended that the present invention covers such modifications and changes as come within the scope of the appended claims and their equivalents.

The air conditioner indoor unit and its air guide assembly according to the embodiment of the present invention will be described below with reference to FIGS. 1 to 7 . Among them, the orientation or positional relationship indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "horizontal", etc. are based on the The orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the present invention .

The terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined as "first", "second", etc. may 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, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. When a feature "comprises or comprises" one or some of the features it encompasses, unless specifically stated otherwise, this indicates that other features are not excluded and that other features may be further included.

Unless otherwise expressly specified and limited, terms such as "mounted", "connected", "connected", "fixed" and "coupled" should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection, or Integrate; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined . Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific situations.

The invention provides an air guide assembly for an air conditioner indoor unit and the air conditioner indoor unit. The indoor unit of the air conditioner is an indoor part of the air conditioner, and is used for conditioning indoor air, such as cooling/heating, dehumidification, and/or introducing fresh air and the like. The air guide assembly is used to be installed at the air outlet 12 of the casing 10 of the air conditioner indoor unit, so as to guide the direction of the air from the air outlet 12 .

Figure 1 is a schematic structural view of an air-conditioning indoor unit according to an embodiment of the present invention; Figure 2 is a schematic cross-sectional view of the air-conditioning indoor unit shown in Figure 1; Figure 3 is an enlarged view of A in Figure 1; The schematic diagram of the air-conditioning indoor unit when the swing leaves 50 are in the coplanar state; FIG. 5 is a schematic cross-sectional view of the air-conditioning indoor unit shown in FIG. 4; FIG. 6 is an enlarged view of B in FIG. 4 .

As shown in FIG. 1 to FIG. 6 , the air guiding assembly of the embodiment of the present invention may generally include a plurality of swing vanes 50 . Each swing blade 50 is rotatably mounted on the air outlet 12 around its own rotation axis. That is, each swing leaf 50 is rotatably arranged around its own axis, rather than all swing leaves 50 rotate around the same axis. Of course, the swing blades 50 can be rotated synchronously through a movement mechanism, so as to direct the airflow from the air outlet 12 to the same direction at the same time. Synchronous kinematic mechanisms are very common in the prior art and will not be repeated here. For example, as shown in FIG. 2, a plurality of swing blades 50 are in the state of jointly guiding the wind toward the front side of the air conditioner indoor unit, while in FIG. The air outlet 12 is closed.

Each swing vane 50 of the air guide assembly can be directly and rotatably installed on the casing 10 of the air conditioner indoor unit. Of course, the air guide assembly can also include an outer frame, and each swing blade 50 is directly and rotatably installed on the outer frame, and then the outer frame is installed on the housing 10. The specific structure is very easy to understand, and no drawings are used here to illustrate .

As shown in FIG. 2 and FIG. 5 , at least two adjacent swing leaves 50 are respectively provided with a plurality of notches on the edges. When the swing blades 50 are rotated to the coplanar state, the notches of the two adjacent swing blades 50 are made to face each other, so as to splice into a plurality of air diffuser openings.

For example, there are at least adjacent swing leaves A and swing leaves B, specifically, the first side of the swing leaf A is adjacent to the second side of the swing leaf B, and at least the first side of the swing leaf A is provided with a plurality of gaps, A plurality of gaps are opened on the second side of the swing leaf B. When the swing leaf A and the swing leaf B rotate to the coplanar state, each notch of the swing leaf A is opposite to each notch of the swing leaf B one by one, forming a plurality of air diffusers. For example, part of the swing leaves 50 (at least two swing leaves 50 ) of the wind guiding assembly may be provided with gaps, while other swing leaves 50 may not be opened. Certainly, it is also possible to make all swing leaves 50 have notches. FIG. 1 to FIG. 6 illustrate the embodiment in which all swing leaves 50 are notched.

In the air guide assembly for an air conditioner indoor unit according to the embodiment of the present invention, micro holes are not provided on each swing blade 50 to obtain a breeze effect. In some solutions in the prior art, a plurality of microholes are densely provided in the swing blade 50 to obtain some breeze effects. However, the inventors found that this solution would cause a large air volume loss to the air supply airflow, and only make the air volume smaller and the wind feeling lighter, but it does not have a good natural wind effect. The embodiment of the present invention is unconventional, in particular, the edges of the swing leaves 50 are notched respectively, and the adjacent swing leaves 50 are in a coplanar state (when all the swing leaves 50 are in a coplanar state, each swing leaf 50 closes the air outlet 12) At the same time, the gaps of the adjacent swing leaves 50 are relatively joined together to form a diffused air outlet, which can achieve a good breeze effect. When the swing blade 50 is rotated to the wind swing position, the notch on the edge of the swing blade 50 makes the edge uneven, and also breaks up the airflow passing through, making the airflow more natural and comfortable. This way of opening the gap will not bring too much energy loss to the airflow, and the strength of the swing blade 50 can also be guaranteed, and the reliability is better.

In some embodiments of the present invention, at least part of the air diffuser is a triangular air diffuser 501 . At least in part means part or all. For example, in the embodiments shown in FIGS. 1 to 6 , all the air diffusers are triangular air diffusers 501 , please refer to FIGS. 3 and 6 for details. Of course, some of the diffuser outlets may also be triangular diffuser outlets, and the rest of the diffuser outlets may be diffuser outlets of other shapes. This form is easy to understand and will not be repeated here.

The inventors found that, according to the principle of aerodynamics, when air flows through the triangular air diffuser 501 , the flow velocity must be lower. The bottom area of the triangular air diffuser 501 (at the trapezoidal notch 51) has little pressure loss, slow flow velocity and small turbulent kinetic energy; the top area (at the triangular notch 52) has large pressure loss, fast flow velocity and large turbulent kinetic energy. Under the combined effect, the strong turbulent kinetic energy of the airflow in the top area will be biased towards the bottom area, and the rhythmic disturbance of the space flow field will be caused during the process of continuous mixing with the airflow in the bottom area, so that a soft, comfortable and natural windless environment will be produced. experience.

In some embodiments, please refer to FIG. 3 and FIG. 6 , at least a part of the notch (referring to a part of the notch or the whole notch) opened on one edge of at least one swing leaf 50 is a triangular notch 52, and another notch adjacent to the edge The at least part of the notch (referring to a part of the notch or all the notch) provided on the edge of the swing leaf 50 is a trapezoidal notch 51 with an open top edge, so that when the two swing leaves 50 are rotated to a coplanar state, the triangular notch 52 is aligned with the trapezoidal notch. The gaps 51 are relatively spliced to form a triangular air diffuser 501 .

It should be emphasized that the so-called "triangular" diffuser, "triangular" notch, and "trapezoidal" notch in the embodiment of the present invention are not strictly limited to a triangle or trapezoid in a strict mathematical sense, but are roughly triangular or trapezoidal. That is, for example, each side can be straight or curved, and the corners can be sharp or rounded.

Further, a plurality of triangular notches 52 and a plurality of trapezoidal notches 51 can be formed on opposite side edges of each swing leaf 50 . In this way, the swing leaf 50 in the middle can form a triangular air diffuser opening 501 with the adjacent swing leaves 50 on both sides at the same time.

In some embodiments, as shown in FIG. 1 to FIG. 6 , each swing leaf 50 is in the shape of a long strip extending vertically, its rotation axis is parallel to its length direction, and each swing leaf 50 is arranged in a transverse direction. The air guide assembly formed by the vertical strip-shaped swing leaves 50 is especially suitable for air-conditioning indoor units with air outlets 12 in the shape of vertical strips, such as air-conditioning cabinets or vertical wall-mounted units. In some other embodiments, each swing leaf 50 can also be extended horizontally or in other directions, so that it can be applied to conventional bar-shaped wall-mounted air conditioner indoor units, which will not be repeated here.

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

The inventors found that factors such as the shape and size of the triangular air diffuser 501 have a certain influence on the aforementioned airflow and breeze effect. For this reason, the inventor has determined some preferred solutions through calculation. Specifically, when two adjacent swing leaves 50 are in a coplanar state, the ratio of the gap width between them 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 The 501 is more complete to make its perturbation better. And, it is preferable to make the triangular notch 52 an equilateral triangle, and the trapezoidal notch 51 is an isosceles trapezoid, so that the triangular air diffuser 501 is an isosceles triangle, so that the airflow of the triangular notch 52 is just aligned with the airflow of the trapezoidal notch 51, so that it can generate Stronger mixing perturbation effect. It is also possible to make the ratio of the height of the triangular notch 52 to the height of the trapezoidal notch 51 between 0.9 and 1.1, more preferably between 0.95 and 1.05, such as 1, to control the ratio of the airflow throughput of the two to achieve the optimum Excellent mixed disturbance effect.

The height direction of the triangular notch 52 extends along the horizontal direction, and the height direction of the trapezoidal notch 51 also extends along the horizontal direction, so that the height direction of the triangular air diffuser 501 spliced by the triangular notch 52 and the trapezoidal notch 51 also extends along the horizontal direction.

FIG. 7 is a schematic diagram of the state after each swing blade 50 shown in FIG. 6 is rotated by 180°.

In some embodiments, the rotatable range of each swing leaf 50 can be greater than 180°, so as to allow the triangular notch 52 of each swing leaf 50 to face the trapezoidal notch 51 of its adjacent swing leaf 50, and allow the swing leaf The trapezoidal notch 51 of 50 is opposite to the triangular notch 52 of the adjacent swing leaf 50 .

Specifically, for example, as shown in FIG. 6 , the triangular notches 52 of the three swing leaves 50 are 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 diffuser openings 501 with their tips facing left. After each swing leaf 50 rotates 180°, it will reach the state shown in Figure 7, so that the triangular gaps 52 of the three swing blades 50 are all located on the left side, and the trapezoidal gap 51 is located on the right side, so as to form two columns of triangles with their tips facing right. Tuyere 501. Different orientations of the tips of the triangular air diffuser openings 501 will inevitably lead to different air outlet directions. Therefore, in the embodiment of the present invention, different breeze effects can be obtained by rotating the swing blade 50 by 180°.

Certainly, in order to normally close the air outlet 12 after the swing vane 50 rotates 180°, the rotation axis of the swing vane 50 can be located at the center of its width direction.

The embodiment of the present invention also provides an air conditioner indoor unit. The air conditioner indoor unit may generally include a casing 10 and at least one air guide assembly as described in any of the above embodiments. The casing 10 is provided with an air outlet, which is used to blow the air supply airflow (cold air, hot air or fresh air, etc.) in the casing 10 to the indoor environment, so as to realize the adjustment of the indoor environment. The air guide assembly is installed at the air outlet 12 , to guide the air outlet direction of the air outlet 12.

As shown in FIGS. 1 to 4 , the air conditioner indoor unit may be an air conditioner cabinet, which includes a casing 10 . The casing 10 is in the shape of an upright strip. The housing 10 defines an accommodating space for accommodating various components of the air conditioner indoor unit. For example, the front side of the housing 10 can be provided with two air outlets 12 arranged up and down, and each air outlet 12 is provided with an air guiding device.

As shown in FIG. 2 , the air-conditioning indoor unit may be an indoor part 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 casing 10 . The heat exchanger 30 and the throttling device are connected with the compressor, the condenser and other refrigeration elements arranged inside the air-conditioning room through pipelines to form a vapor compression refrigeration cycle system. Under the action of the fan 40, the indoor air enters the interior of the housing 10 through the air inlet opened by the housing 10, and after completing forced convection heat exchange with the heat exchanger 30, heat exchange air is formed and enters the air duct 20, and then passes through the air outlet. 12 is blown to the indoor environment, and the air outlet 12 is guided by a plurality of swing leaves 50 . The fan 40 is preferably a cross-flow fan whose axis is parallel to the length direction of the casing 10 , and is arranged at the inlet of the air duct 20 .

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims

An air guide assembly for an air conditioner indoor unit, 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,

The wind guide assembly includes a plurality of swing leaves, each of which is rotatably mounted on the air outlet around its own rotation axis, and at least two adjacent swing leaves are respectively provided with a plurality of notches on their edges, When the two adjacent swing leaves rotate to the coplanar state, the notches of the two adjacent swing leaves face each other to form a plurality of air diffusers.
The wind guide assembly according to claim 1, wherein,

At least some of the air diffusers are triangular air diffusers.
The wind guide assembly according to claim 2, wherein,

At least part of the notch opened on one edge of at least one swing leaf is a triangular notch, and at least part of the notch opened on the edge of another swing leaf adjacent to this edge is a trapezoidal notch with an open top edge, so that When the two swing vanes are rotated to the coplanar state, the triangular notch and the trapezoidal notch are joined together to form the triangular air diffuser.
The wind guide assembly according to claim 3, wherein,

A plurality of triangular notches and a plurality of trapezoidal notches are formed on opposite side edges of each swing leaf.
The wind guide assembly according to claim 4, wherein,

The rotatable range of each swing leaf is greater than 180°, so as to allow the triangular notch of each swing leaf to face the trapezoidal notch of its adjacent swing leaf, and allow the swing leaf to The trapezoidal notch is opposite to the triangular notch of the adjacent swing leaf.
The wind guide assembly according to claim 4 or 5, wherein,

Each of the swing leaves is in the shape of a long strip extending in the vertical direction, its rotation axis is parallel to its length direction, and each of the swing leaves is arranged in the transverse direction;

One long side of each swing leaf is provided with a plurality of triangular notches arranged along its length direction, and the other long side is provided with a plurality of trapezoidal notches arranged along its length direction.
The wind guide assembly according to claim 6, wherein,

When two adjacent swing leaves are coplanar, the ratio of the width of the gap between them to the height of the triangular air diffuser is less than 0.07.
The wind guide assembly according to any one of claims 3-7, wherein,

The triangular notch is an equilateral triangle, and the trapezoidal notch is an isosceles trapezoid, so that the triangular air diffuser is an isosceles triangle.
The wind guide assembly according to any one of claims 3-8, wherein,

The ratio of the height of the triangular notch to the height of the trapezoidal notch is between 0.9 and 1.1.
An air conditioner indoor unit, comprising:

a casing, which is provided with an air outlet; and

At least one air guide assembly according to any one of claims 1 to 9 is installed at the air outlet to guide the air outlet direction of the air outlet.