CN210861611U - Air outlet structure and air conditioner - Google Patents

Abstract

The utility model provides an air outlet structure and an air conditioner, comprising an air guide member and an air outlet, wherein the air guide member comprises a first air guide surface and a second air guide surface which are oppositely arranged along the thickness direction thereof, and the first air guide surface It is an arc surface, the second air guide surface is a plane, and the cross section of the air guide along its thickness direction is the arc part and the straight part connected end to end, the distance between the two ends of the straight part is h1, and the arc part farthest from the straight part. The distance between the vertex and the straight part is h2, and the range of h1/h2 is [2,4]. The utility model can realize the simultaneous change of the wind direction on both sides by the combination of the plane and the arc surface of the air guide member, the arc surface wind guide can realize the Coanda effect, the wind gradually changes the wind direction along the arc surface, and various air outlet modes can be realized. The surface design extends the air supply distance, and the comfort of the wind guide is better.

Description

An air outlet structure and an air conditioner

technical field

The utility model relates to the technical field of air conditioners, in particular to an air outlet structure and an air conditioner.

Background technique

In order to realize the air outlet, the air conditioner is provided with an air outlet structure at the air outlet of the air duct. The air outlet structure in the prior art is usually a one-piece air deflector or a louvered air deflector, and the air deflector rotates upward or downward through the air deflector. , to achieve upward or downward wind direction.

The air outlet structure in the prior art also has the following problems: first, when the wind blows out from the air duct, the air deflector structure of the sheet-shaped straight plate can only change the wind direction on one side of the air deflector, and the wind direction on the other side is affected by the air duct. The wind direction remains unchanged due to the limitation of the structure; secondly, the sudden change of direction of the wind deflector when the air output is too large has a great impact on the air volume, resulting in poor comfort; The setting of the plate structure, its parts are more likely to cause the problem of structural instability.

Utility model content

The problems solved by the utility model are the problems of single wind direction change, poor comfort and unstable structure of the wind deflector in the prior art.

In order to solve the above problems, the first aspect of the present invention provides an air outlet structure, including an air guide member and an air outlet, and the air guide member includes a first air guide surface and a second air guide surface arranged oppositely along its thickness direction. It is characterized in that the first air guide surface is an arc surface, the second air guide surface is a plane, and the cross section of the air guide member along its thickness direction is an arc part and a straight part connected end to end, so The central angle corresponding to the arc portion is not greater than 180°, and the arc surface can realize the Coanda effect.

The air guide of the utility model is arranged in combination with the plane and the arc surface, so that the wind directions on both sides can be changed at the same time; the arc surface wind guide can realize the Coanda effect, the wind gradually changes the wind direction along the arc surface, and various air outlet modes can be realized; The design extends the air supply distance, and the comfort of the wind guide is better.

The second air guide surface adopts a plane structure, which can ensure a large air output, and at the same time avoid the air outlet direction of the second air guide surface being opposite to the air outlet direction of the arc surface, which interferes with the Coanda effect.

The central angle corresponding to the arc portion is not greater than 180°, which is designed for the inferior arc, that is, the arc surface is relatively flat. The purpose is to achieve the Coanda effect while minimizing the shielding of the air outlet, without affecting the wind speed and air volume.

Further, the distance between the two ends of the straight line portion is h1, the distance between the vertex of the arc portion farthest from the straight line portion and the straight line portion is h2, and the range of h1/h2 is [2,4].

The selection of this range has been verified by experiments, and the Coanda effect, the air outlet speed and the air outlet volume are comprehensively optimal.

Further, the air outlet includes an upper wall and a lower wall, and both the first air guide surface and the upper wall and the lower wall of the air outlet can form an airflow channel.

Further, the width of the air passage is 4-15mm, so that the Coanda effect of the first air guide surface is the most significant.

Further, the two ends of the air guide member along the length direction are provided with rotating shafts, and the rotating shafts are rotatably connected to the two side walls of the air outlet to realize the rotation of the air guide member.

Further, the distance between the rotating shaft and the upper wall and the lower wall of the air outlet is equal, and the rotating shaft is located in the middle position of the straight part, so that the first air guide surface is close to the upper wall and the lower wall respectively. The widths of the formed airflow channels are equal.

Further, the arc portion includes a circular arc and an elliptical arc curve.

Further, the air guide member is integrally formed, or the first air guide surface and the second air guide surface are integrally formed and then welded to the two side plates.

Further, the air guide member is a hollow structure, and the air guide member is provided with a ventilation hole, which is used as a ventilation hole for gas-assisted molding and discharges water vapor.

Further, the ventilation holes are arranged in the middle or end of the first wind guide surface, and close to the second wind guide surface; and/or on at least one side of the two side plates of the wind guide member.

Another aspect of the present invention provides an air conditioner, which includes the above-mentioned air outlet structure.

The beneficial effects of the utility model are as follows: the plane of the air guide and the arc surface are combined, so that the wind directions on both sides can be changed at the same time. ;Due to the arc surface design prolongs the air supply distance, gradually changes the wind direction along the arc surface, reduces the turbulence phenomenon caused by the rapid turning of the air outlet of the air conditioner, and the comfort of the air guide is better; the arc surface of the air guide and the airflow on the upper and lower walls of the air outlet The width of the channel is set to 4-15mm, which can enhance the effect of the Coanda effect. In addition, the air guide of the utility model has a simple structure, and a single air guide is used to realize the switching of the wind direction, with low noise and easy realization.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the air guide of the utility model;

Figure 2 is a schematic diagram of the cross-sectional structure of the air guide of the present invention;

Fig. 3a, Fig. 3b are the structural representation of the air outlet of the utility model air conditioner;

4 is a schematic diagram of the first use state of the air guide of the present invention;

FIG. 5 is a schematic diagram of the second use state of the air guide of the present invention.

1-air guide; 11-first air guide surface; 12-second air guide surface; 13-rotating shaft; 14-side plate; 15-vent hole; 2-air outlet; 21-upper wall; 22-lower wall; 23-side wall; 3-air flow passage.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

As shown in Figures 1-3a and 3b, the present invention provides an air outlet structure, comprising an air guide member 1 and an air outlet 2. The air guide member 1 is in the shape of a long strip, and includes a second air outlet arranged oppositely along the thickness direction of the air guide member 1. A wind guide surface 11 and a second wind guide surface 12, the first wind guide surface 11 is an arc surface, the second wind guide surface 12 is a plane, and the cross section of the wind guide member 1 along its thickness direction is the head and tail The connected arc part and the straight part, the central angle corresponding to the arc part is not more than 180°, which is a bad arc, and the arc surface can realize the Coanda effect.

The air guide 1 is set by combining the plane air guide and the arc surface air guide, which can realize the simultaneous change of the wind direction on both sides, and the arc surface air guide can realize the Coanda effect. The wind gradually changes the wind direction along the arc surface, extending the air supply distance, and further The turbulent flow phenomenon caused by the rapid turning of the air outlet of the air conditioner is reduced, so that the comfort of the air guiding member 1 is better.

The second air guide surface adopts a plane structure, which can ensure a large air output, and at the same time avoid the air outlet direction of the second air guide surface being opposite to the air outlet direction of the arc surface, which interferes with the Coanda effect. The arc portion includes one or more of circular arcs, elliptical arcs or irregular curves, preferably circular arcs.

Further, the distance between the two ends of the straight line part is h1, the distance between the vertex of the arc part farthest from the straight line part and the straight line part is h2, and the range of h1/h2 is [2, 4], further strengthening Coanda effect.

The above-mentioned distance to the straight portion is interpreted as: in the normal direction of the straight portion, the distance from each point on the arc portion to the straight portion.

When h1/h2 is equal to 2 and the arc portion is a circular arc, the central angle of the arc is 180°, and the section of the air guide 1 along the thickness direction thereof is a semicircle.

When h1/h2 is greater than 2 and less than or equal to 4, that is, when the range of h1/h2 is (2,4], the radian of the arc portion is less than the radian of the semicircle, and the corresponding central angle is less than 180°.

The central angle corresponding to the arc portion is not greater than 180°, which is designed for the inferior arc, that is, the arc surface is relatively flat. The purpose is to achieve the Coanda effect while minimizing the shielding of the air outlet, without affecting the wind speed and air volume.

The air guide member 1 is arranged at the inner edge of the air outlet 2 , and the length direction of the air guide member 1 is arranged along the length direction of the air outlet 2 .

Preferably, the selection of the above-mentioned radian can be based on the radian of the outer surface of the casing at both ends of the air outlet 2, which can be kept consistent, so that a consistent circular arc outer surface is formed from the outside, and an aesthetic effect is achieved. Of course, a movable appearance baffle can also be provided at the air outlet 2, which can completely cover the air guide 1 when the air conditioner is in the off state, so that the curvature of the air guide 1 and the machine at both ends of the air outlet 2 can be ignored. Whether the curvature of the outer surface of the shell is consistent.

Specifically, the air guide member 1 includes a middle portion formed by a first air guide surface 11 and a second air guide surface 12 , and preferably further includes side plates 14 at both ends. Preferably, the air guide member 1 is integrally formed, or the first air guide surface 11 and the second air guide surface 12 are integrally formed and then welded to the two side plates 14 . The molding method is preferably gas-assisted.

The air guide 1 is a hollow structure ( FIG. 2 ), and the air guide 1 is provided with a ventilation hole 15 . Preferably, the ventilation hole 15 can be arranged in the middle or end of the first air guide surface 11 , It is preferably arranged at a position close to the second air guide surface 12 ; it can also be arranged on at least one side plate 14 of the two side plates 14 of the air guide 1 , or both vent holes 15 can be arranged. On the one hand, the vent hole 15 can be used as a vent hole during air-assisted molding, and on the other hand, the water vapor inside the air guide 1 can be released from the vent hole 15 to keep the hollow structure inside the air guide 1 dry.

The two ends of the air guide member 1 along the length direction are provided with rotating shafts 13, and the rotating shafts 13 are rotatably connected to the two side walls 23 of the air outlet. The holes in which the shaft 13 is matched may also be formed with holes at both ends of the air guide 1, the rotating shaft 13 may be provided on the side wall 23 of the air outlet, or a transmission component may be provided in the middle. Preferably, the rotating shaft 13 is driven to rotate by a motor assembly, and the motor assembly drives the air guide 1 to rotate with the line connecting the two rotating shafts 13 as the rotating axis.

As shown in FIGS. 3a-5 , the air outlet 2 includes an upper wall 21 and a lower wall 22 , and the first air guide surface 11 and the upper wall 21 and the lower wall 22 of the air outlet 2 can both form an air passage 3 . Since the width of the airflow channel 3 and the airflow speed through the airflow channel 3 together affect the Coanda effect at the first air guide surface 11, the present utility model has been demonstrated through a large number of experiments. and commercial air conditioners) at a rotational speed (usually 600-1350 rpm), when the width d of the airflow channel 3 is set to 4-15 mm, the Coanda effect of the first air guide surface 11 is the highest Significantly. In addition, if the rotation speed of the air conditioner is higher (greater than 1350 rpm), when the airflow speed through the airflow channel 3 is larger, the width of the airflow channel 3 can be positively correlated with the wind speed of the air outlet. The width of the air passage 3 can be set to be larger (closer to 20mm).

In addition, the distance between the rotating shaft 13 and the upper wall 21 and the lower wall 22 of the air outlet is equal, and the first air guiding surface 11 of the air guiding member 1 is in the upper air outlet position ( FIG. 4 ) and the lower air outlet In the position (Fig. 5), the widths of the air passages 3 are equal. Preferably, the rotating shaft 13 is located in the middle of the parallel direction of the linear portion of the air guide 1 .

When the first air guide surface 11 of the air guide member 1 faces the extension direction of the air outlet air duct (outward), the wind gathering effect is realized; when it faces the inside of the air outlet air duct (inward), the air equalizing effect is realized; towards the air outlet The upper wall (Fig. 4) realizes the effect of lower air outlet; towards the lower wall of the air outlet (Fig. 5), the upper air outlet effect is realized.

Another aspect of the present utility model provides an air conditioner, including the above-mentioned air outlet structure, as shown in Figures 4 and 5, using a motor assembly to drive the air guide member 1 to rotate, so that the first air guide surface 11 and the upper When the distance between the walls 21 is the smallest, the wind blown from the air duct forms a Coanda effect on the first air guide surface 11, blowing downward along the arc of the first air guide surface 11, and at the same time, the other side is blown from the air duct. The blown wind is blown diagonally downward along the extending direction of the second air guide surface 12, and the winds on both sides of the air guide member 1 converge to form a downward air outlet state; the motor assembly is used to drive the air guide member 1 to rotate, so that the first air guide member 1 is rotated. When the distance between the surface 11 and the lower wall 22 is the smallest, the wind blown from the air duct forms a Coanda effect on the first air guide surface 11, blowing upward along the arc of the first air guide surface 11, and at the same time, the other The wind blown out from the air duct on one side blows along the extending direction of the second air guide surface 12 , and the winds on both sides of the air guide member 1 converge to form an upward air outlet state. Above, the air guide 1 realizes the switching of the wind direction by a single air guide. Compared with the louver type and the multi-wind guide plate, the aerodynamic noise of the air outlet is likely to be larger, and the noise of the air guide 1 of the present invention is lower.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (11)

1. The utility model provides an air-out structure, includes air guide (1) and air outlet (2), air guide (1) includes first wind-guiding face (11) and second wind-guiding face (12) along relative setting of its thickness direction, a serial communication port, first wind-guiding face (11) are the cambered surface, second wind-guiding face (12) are the plane, air guide (1) are end to end connection's pitch arc part and linear part along the cross-section of its thickness direction, the central angle that the pitch arc part corresponds is not more than 180, the conda effect can be realized to the cambered surface.

2. The air outlet structure of claim 1, wherein the distance between two end points of the straight line part is h1, the distance between the vertex of the arc part farthest from the straight line part and the straight line part is h2, and the range of h1/h2 is [2,4 ].

3. The air outlet structure of claim 1 or 2, wherein the air outlet (2) comprises an upper wall (21) and a lower wall (22), and the first air guiding surface (11) and the upper wall (21) and the lower wall (22) of the air outlet (2) can form an air flow channel (3).

4. The air outlet structure of claim 3, wherein the width of the air flow channel (3) is 4-15 mm.

5. The air outlet structure according to claim 1, wherein rotation shafts (13) are provided at both ends of the air guide (1) in the longitudinal direction, and the rotation shafts (13) are rotatably connected to both side walls (23) of the air outlet.

6. The air outlet structure of claim 5, wherein the rotating shaft (13) is equidistant from the upper wall (21) and the lower wall (22) of the air outlet, and the width of the airflow channel (3) formed by the first air guide surface (11) facing the upper wall (21) and the lower wall (22) is equal.

7. The air outlet structure according to claim 1 or 2, wherein the arc portion includes an arc, an elliptic arc curve.

8. The air outlet structure according to claim 1 or 2, wherein the air guide member (1) is integrally formed, or the first air guide surface (11) and the second air guide surface (12) are integrally formed and then welded to the two side plates (14).

9. The air outlet structure of claim 1 or 2, wherein the air guide (1) is a hollow structure, and the air guide (1) is provided with a vent hole (15).

10. The air outlet structure of claim 9, wherein the vent hole (15) is arranged at the middle or end of the first air guide surface (11) and close to the second air guide surface (12); and/or arranged on at least one side plate (14) of the wind guide (1).

11. An air conditioner, characterized in that, includes the air outlet structure of any one of claims 1-10.

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