CN209763286U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an indoor unit of air conditioner, include: a casing for settling indoor heat exchanger and wind wheel, casing have the air outlet, and the at least partial bottom surface of air outlet is first curved surface section, and first curved surface section is the evagination curved surface that extends gradually downwards on the air-out direction, and first curved surface section camber in the air-out direction increases gradually. The utility model discloses machine in air conditioning, the bottom surface of the air outlet of casing is including first curved surface section, and when the air conditioner was during to the air-out downwards under the heating mode, wind can be outwards derived along the surface of first curved surface section gradually. Therefore, the air outlet surface is easy to form the coanda effect, so that more air outlet flows downwards along the convex curved surface, blanket type air supply is easy to form in the heating mode, and the use comfort level is improved.

Description

Indoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, specifically an indoor unit of air conditioner.

Background

The indoor unit of the vertical air conditioner is generally placed on the ground in a room and heats or cools the indoor air. The air after heat exchange is led out from the air outlet, and the direction and the angle of the air outlet are changed by the air guide assembly during air outlet, so that hot air is blown downwards in the heating mode, and cold air is blown upwards in the cooling mode. However, since the air outlet of the indoor unit is spaced from the ground by a certain distance, when the air conditioner blows hot air, even if the air guide assembly guides the air flow downwards, the degree of the downward direction change of the hot air flow is limited, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The air outlet of the air conditioner is the last section of the air flow blown out of the air conditioner shell, and the inventor finds that in the design of the existing air conditioner, particularly in a vertical machine, people often neglect the guiding effect of the inner wall of the air outlet on the air outlet of the air conditioner. In order to facilitate the mold stripping, the inner wall surface of the air outlet on the air conditioner is usually designed into a straight surface, and the straight surface has a constraint effect on the air flow reversing and guiding.

therefore, the utility model provides an indoor unit of air conditioner, indoor unit of air conditioner improves the heat transfer effect through changing the air-out internal face.

According to the utility model discloses machine in air conditioning, include: the casing is used for arranging the indoor heat exchanger and the wind wheel, the casing is provided with an air outlet, at least part of the bottom surface of the air outlet is a first curved surface section, the first curved surface section is an outer convex curved surface which gradually extends downwards in the air outlet direction, and the curvature of the first curved surface section is gradually increased in the air outlet direction.

According to the utility model discloses machine in air conditioning, the bottom surface of the air outlet of casing forms to first curved surface section, and when the air conditioner was air-out downwards under the heating mode, wind can be outwards derived along the surface of first curved surface section gradually. Therefore, the air outlet surface is easy to form the coanda effect, so that more air outlet flows downwards along the convex curved surface, blanket type air supply is easy to form in the heating mode, and the use comfort level is improved.

According to the utility model discloses an indoor unit of air conditioner, arbitrary point department's camber all less than or equal to 0.01 on the first curved surface section.

Optionally, the size of the first curved surface section in the air outlet direction at least occupies 1/3 of the bottom surface.

According to the utility model discloses machine in air conditioning, the bottom surface of air outlet still includes the horizontal segment, in the air-out direction the horizontal segment is located the upper reaches of first curved surface section.

Optionally, an inclined transition section is formed between the horizontal section and the first curved surface section, and the inclined transition section is arranged in a downward inclined manner in the air outlet direction.

According to the utility model discloses machine in air conditioning, the bottom surface of air outlet still includes the extension section, and in the air-out direction the extension section is located the low reaches of first curved surface section, the downward sloping setting of extension section in the air-out direction.

Optionally, the extension section is connected with the first curved surface section in a tangent manner.

According to the utility model discloses machine in air conditioning, machine in the air conditioning is the vertical machine, the vertical setting of air outlet, the wind wheel is the through-flow wind wheel of vertical setting.

Optionally, the height of the bottom surface of the air outlet does not exceed 1/3 of the height of the vertical machine.

According to the utility model discloses machine in air conditioning, at least partial top surface of air outlet is the second curved surface section, the second curved surface section is the evagination curved surface that upwards extends gradually in the air-out direction, just the second curved surface section camber crescent in the air-out direction.

Optionally, the first curved surface section and the second curved surface section are oppositely arranged at two ends of the air outlet.

According to the utility model discloses an indoor unit of air conditioner still includes air guide component, air guide component includes a plurality of wind-guiding strips, and is a plurality of wind-guiding strip sets up along the direction of height spaced apart on the air outlet.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

Fig. 1 is a front view of an air conditioning indoor unit according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view taken along plane K-K of fig. 1.

fig. 3 is a transverse sectional view of an air conditioning indoor unit according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of the bottom surface of the air outlet including the first curved surface section according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of the air outlet according to an embodiment of the present invention, in which the bottom surface includes a first curved surface section and the top surface includes a second curved surface section.

Fig. 6 is an enlarged structural diagram of a region I in fig. 4.

Reference numerals:

An indoor air-conditioning unit 100;

A housing 1;

An air outlet 11;

A horizontal section 110; a sloped transition section 111; a first curved surface segment 112; an extension 113; a second curved surface segment 114;

An air inlet 12;

an air duct member 2; an air induction passage 21; a fan installation cavity 22; a volute 23;

A wind wheel 3;

A protective net 4;

an air guide assembly 5; an air guide strip 51; the louvers 52;

An indoor heat exchanger 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

The structure of the indoor unit 100 of an air conditioner according to the embodiment of the present invention will be described below.

according to the utility model discloses in air conditioning machine 100, as shown in fig. 1, 2 and 3, include: casing 1, wind wheel 3 and indoor heat exchanger 6.

As shown in fig. 1 and 2, the housing 1 is provided with an outlet 11, and the outlet 11 is formed at one side of the housing 1. As shown in fig. 2 and 3, an indoor heat exchanger 6 and a wind wheel 3 are disposed in the casing 1. The indoor heat exchanger 6 is used for exchanging heat with the airflow entering the indoor unit 100, and the wind wheel 3 is used for driving the airflow in the indoor unit 100 to flow towards the air outlet 11.

As shown in fig. 4 and 5, at least a portion of the bottom surface of the air outlet 11 is a first curved surface section 112, the first curved surface section 112 is an outer convex curved surface gradually extending downward in the air outlet direction, and the curvature of the first curved surface section 112 gradually increases in the air outlet direction.

With the above structure, the indoor unit 100 of the air conditioner according to the embodiment of the present invention has the first curved surface section 112 formed on the bottom surface of the air outlet 11 of the casing 1, so that when the air conditioner is out of the air, the air flowing through the first curved surface section 112 flows along the outer convex surface. Meanwhile, the air flow along the first curved surface section 112 will generate coanda effect, that is, the air flow flowing out of the first curved surface section 112 will continue to flow downwards along the curved direction of the first curved surface section 112 without being blocked by foreign objects, so that the air flow flowing through the first curved surface section 112 is guided to the lower direction. Compare in prior art the bottom surface of air outlet for planar structure, the embodiment of the utility model provides an air outlet 11 that has first curved surface section 112 enables the air-out scope of air current wider.

Because the first curved surface section 112 is disposed at the bottom of the air outlet 11, when the indoor air conditioning unit 100 is in the heating mode, the outlet air near the air outlet 11 flows more downward along the convex curved surface, and therefore, the bottom surface of the air outlet 11 does not need to be additionally provided with other air guides, and the outlet air flow direction at the bottom can be changed, so that more outlet air is blown out toward the ground, thereby facilitating the indoor air conditioning unit 100 to form carpet type air supply in the heating mode, and improving the use comfort.

It is thus clear that compare in the prior art and only rely on parts such as aviation baffle to change the scheme of air-out flow direction, the embodiment of the utility model provides an, utilize the bottom surface of air outlet 11 just can realize the wind-guiding effect of certain degree, and parts such as the reunion aviation baffle, downward wind-guiding effect can be better.

In some examples, as shown in fig. 5, at least a portion of the top surface of the air outlet 11 is a second curved section 114, the second curved section 114 is a convex curved surface gradually extending upward in the air outlet direction, and the curvature of the second curved section 114 gradually increases in the air outlet direction. Similar to the principle of the first curved section 112 disposed on the bottom surface of the air outlet 11, the second curved section 114 is disposed on the top surface of the air outlet 11, which is beneficial to upward expansion of the air outlet range of the indoor air-conditioning unit 100, especially beneficial to upward guiding of the air outlet of the indoor air-conditioning unit 100 in the cooling mode, so that the cold air flow after heat exchange flows upward along the surface of the second curved section 114, thereby increasing the air outlet wide-dispersion property of the cold air, upward blowing out the cold air in a large range, facilitating air guiding in the air-conditioning cooling mode, and improving the cooling effect of the indoor air-conditioning unit 100.

Optionally, the first curved surface section 112 and the second curved surface section 114 are symmetrically disposed at two ends of the air outlet 11. When the first curved surface section 112 and the second curved surface section 114 are symmetrically arranged, on one hand, the appearance is more attractive, the processing is convenient, and on the other hand, the structure is simple, and the curvature parameters are convenient to adjust and test; in addition, the air outlet of the air outlet 11 having the first curved surface section 112 and the second curved surface section 114 is formed into a structure similar to a gradually expanding section, so that when the air current in the indoor unit 100 of the air conditioner flows, the flow speed is reduced, the wind feeling is softer, the wind noise is lower, and the wind feeling is softer. Of course, the second curved surface segment 114 and the first curved surface segment 112 may also be asymmetric, and different curvature parameters and sizes are selected, and at this time, the design may be performed according to actual requirements.

In the description of the present invention, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.

In describing the structure and characteristics of the first surface segment 112, the following description is based on the structure in which the first surface segment 112 and the second surface segment 114 are symmetrical, that is, when the first surface segment 112 has certain structural characteristics, the second surface segment 114 also has similar characteristics, and the structures of the two are symmetrical.

Advantageously, the curvature of the first curved surface section 112 at any point is less than or equal to 0.01. Within this curvature range, the convex curved surface of the first curved surface section 112 is more likely to form a coanda effect, so that the fluid is more likely to be adsorbed on the convex surface, flow along with the trend of the convex surface and be led out. Accordingly, the curvature of the second curved surface segment 114 at any point is less than or equal to 0.01.

Optionally, the curvature ρ of the first curved surface section 112 is equal to or greater than 0.001 and equal to or less than 0.01. When rho is larger than 0.01, part of the air flow is not easy to be adsorbed on the outer convex surface when the air flows out, and the air flow directly flows out, so that the coanda effect is not obvious enough. When ρ is smaller than 0.001, the curvature of the first curved surface section 112 is too small, so that the bottom surface of the air outlet 11 is close to a plane, the coanda effect cannot be fully utilized by the air flow during air outlet, and the air guiding effect cannot be improved in a large range.

In some embodiments of the present invention, as shown in fig. 4 and 5, the dimension of the first curved surface section 112 in the air outlet direction at least occupies 1/3 of the bottom surface. When the first curved surface section 112 occupies at least one third of the bottom surface, the surface capable of forming the coanda effect is sufficient when the air conditioner indoor unit 100 is discharging air, so that more air flow close to the bottom surface is blown toward the ground. When the size of the bottom surface occupied by the first curved surface section 112 is less than one third, the coanda effect in the wind outlet process is obviously weakened.

Optionally, as shown in fig. 4 and 6, the bottom surface of the air outlet 11 further includes a horizontal section 110, and the horizontal section 110 is located upstream of the first curved section 112 in the air outlet direction. On one hand, the horizontal segment 110 is connected with an air duct component inside the shell 1 in a matching way, so that the outlet air is guided to the air outlet; on the other hand, the horizontal segment 110 pre-adjusts the direction of the outlet air, i.e. adjusts the flow direction of the outlet air flow close to the bottom surface before the outlet air flows to the first curved surface segment 112, so that the outlet air flows outwards close to the surface of the first curved surface segment 112 more easily when passing through the first curved surface segment 112.

In some embodiments, as shown in fig. 3, an air duct component 2 is disposed in the housing 1, the air duct component 2 includes a volute 23, one end of the volute 23 faces the indoor heat exchanger 6, the other end of the volute 23 extends and opens to the air outlet 11, a wind wheel 3 is disposed in the volute 23, and a space where the volute 23 connects with the air outlet 11 is formed as an induced air channel 21.

Optionally, a part of the volute 23 located in the induced air channel 21 is connected to the horizontal section 110. So that the wind guided out by the wind wheel 3 is smoothly delivered into the induced air passage 21, and the relative position between the volute 23 and the air outlet 11 is more stable.

Optionally, as shown in fig. 4 and 6, an inclined transition section 111 is formed between the horizontal section 110 and the first curved section 112, and the inclined transition section 111 is arranged to be inclined downwards in the wind outlet direction. The inclined transition section 111 connects the horizontal section 110 and the first curved section 112, so that the first curved section 112 has a more suitable starting point, that is, the starting point of the coanda effect formed by the outlet airflow during air outlet is more suitable, the phenomenon that the coanda effect is too early and the airflow close to the bottom surface has too weak wind feeling after flowing out of the air outlet 11 is prevented, and the phenomenon that the coanda effect is too late and the airflow close to the bottom surface has enough wind speed but insufficient direction change after flowing out of the air outlet 11 is avoided, which is not favorable for forming a heating mode of downward carpet type air sweeping.

As shown in fig. 5, when the inclined transition section 111 is disposed between the horizontal section 110 and the second curved section 114, the inclined transition section 111 is disposed to be inclined upward in the wind outlet direction.

In some examples, as shown in fig. 4 and 6, the bottom surface of the outlet 11 further includes an extension 113, the extension 113 is located downstream of the first curved section 112 in the outlet direction, and the extension 113 is disposed to be inclined downward in the outlet direction. The extension section 113 is arranged next to the first curved section 112, and the outlet air passing through the first curved section 112 forms outlet air with both variable flow rate and flow direction under the action of the coanda effect, and the outlet air at the moment can increase the target distance of the supplied air under the guidance of the extension section 113.

advantageously, the extension 113 is connected tangentially to the first curved section 112. That is, the extension section 113 is located in the tangential direction of the first curved section 112, and in this tangential direction, the outlet air passing through the first curved section 112 does not receive a large resistance but follows the flowing direction of the outlet air, and the extension section 113 forms a further flow guide for the outlet air.

As shown in fig. 5, when the extension section 113 is located downwind of the second curved section 114, the extension section 113 is disposed to be inclined upward in the wind outlet direction.

The indoor unit 100 of the air conditioner is a vertical type unit, the air outlet 11 is vertically arranged, and the wind wheel 3 is a cross-flow wind wheel which is vertically arranged. The vertical machine is arranged on the ground in a room, and the height of the air outlet 11 is larger.

In some examples, as shown in fig. 1, the height of the bottom surface of the outlet 11 does not exceed 1/3, which is the height of the stand. When the structure is designed, the air outlet current of the air outlet 11 close to the bottom surface can blow towards the ground more easily, and the circulating force of indoor air is increased.

In some embodiments of the present invention, the wind guiding assembly 5 is further included, the wind guiding assembly 5 includes a plurality of wind guiding strips 51, the wind guiding strips 51 are arranged on the air outlet 11 at intervals along the height direction, and at least a part of the surface of the wind guiding strip 51 at the lowest position is formed into an outer convex surface. The air guide strip 51 is matched with the first curved surface section 112 of the air outlet 11, which is more beneficial to air outlet flow guide.

Optionally, as shown in fig. 3, the air guiding assembly 5 includes air guiding strips 51 and louvers 52, and the air guiding strips 51 and the louvers 52 are both disposed in the air guiding channel 21 to divert and guide the airflow passing through the air outlet 11. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Optionally, when the air guide strips 51 are designed to swing left and right, the louvers 52 are designed to swing up and down; when the air guide strips 51 are designed to swing up and down, the louvers 52 are designed to swing left and right. When the air guide strips 51 or the louvers 52 swing up and down, the heating or cooling mode of the indoor unit 100 of the air conditioner can be switched. And then cooperate the utility model discloses unique air outlet 11's shape can be so that the effect of heating and refrigeration effect are better.

To better understand the solution of the embodiment of the present invention, the structure of the indoor unit 100 of the air conditioner in one embodiment of the present invention is described below.

As shown in fig. 1, 2, and 3, an air conditioning indoor unit 100 includes a casing 1, an air duct member 2, a wind wheel 3, a protective net 4, a wind guide assembly 5, and an indoor heat exchanger 6.

The shell 1 is cylindrical, an air outlet 11 is formed in the front side of the shell 1, an air inlet 12 is formed in the rear side of the shell 1, and an installation cavity is formed in the shell 1. As shown in fig. 3, an indoor heat exchanger 6 is provided at a side close to the intake vent 12. The indoor heat exchanger 6 is longitudinally supported in the installation cavity. In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "radial", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The air duct member 2 is provided in the casing 1 with one side thereof facing the air outlet 11 and the other side thereof facing the indoor heat exchanger 6. The air duct component 2 comprises a volute 23, a cavity on one side of the volute 23 close to the air inlet 12 is formed into a fan installation cavity 22, a cavity enclosed by a structure of the volute 23 close to the air outlet 11 is formed into an induced air channel 21, and the induced air channel 21 is communicated with the fan installation cavity 22. The fan installation cavity 22 is internally provided with a wind wheel 3, and the wind wheel 3 adopts a cross-flow wind wheel.

As shown in fig. 3, the protection net 4 is located between the wind rotor 3 and the wind outlet 11. The left end and the right end of the protective net 4 are respectively connected with the volute 23. An air guide assembly 5 is formed between the air outlet 11 and the protective net 4 and used for adjusting the angle of air outlet. The air guide assembly 5 includes air guide strips 51 and louvers 52, the air guide strips 51 are located outside the air inducing passage 21, the louvers 52 are located inside the air inducing passage 21, the air guide strips 51 swing in the left-right direction, and the louvers 52 swing in the up-down direction. The outer surface of the air guide strip 51 arranged below is formed to be convex.

As shown in fig. 5, the bottom surface and the top surface of the air outlet 11 are respectively provided with a horizontal segment 110, the two horizontal segments 110 are respectively connected with a first curved surface segment 112 and a second curved surface segment 114 through two symmetrically arranged inclined transition segments 111, the tangential direction of the tail end of the first curved surface segment 112 is connected with a downward inclined extension segment 113, and the tangential direction of the tail end of the second curved surface segment 114 is connected with an upward inclined extension segment 113. The curvatures of any point on the first curved surface section 112 and the second curved surface section 114 are less than or equal to 0.01.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Other configurations of the air conditioning indoor unit 100 according to the embodiment of the present invention, such as the specific structure and connection manner of the air guide assembly 5, the operation principle of the indoor heat exchanger 6, etc., are known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. An indoor unit of an air conditioner, comprising: the casing is used for arranging the indoor heat exchanger and the wind wheel, the casing is provided with an air outlet, at least part of the bottom surface of the air outlet is a first curved surface section, the first curved surface section is an outer convex curved surface which gradually extends downwards in the air outlet direction, and the curvature of the first curved surface section is gradually increased in the air outlet direction.

2. an indoor unit of an air conditioner according to claim 1, wherein the curvature of any point on the first curved surface section is 0.01 or less.

3. An indoor unit of an air conditioner according to claim 2, wherein the first curved surface section has a size in the air outlet direction of at least 1/3% of the bottom surface.

4. An indoor unit of an air conditioner according to claim 1, wherein the bottom surface of the air outlet further includes a horizontal section, and the horizontal section is located upstream of the first curved section in the air outlet direction.

5. An indoor unit of an air conditioner according to claim 4, wherein an inclined transition section is formed between the horizontal section and the first curved section, and the inclined transition section is arranged to be inclined downward in the air outlet direction.

6. An indoor unit of an air conditioner according to claim 1, wherein the bottom surface of the outlet further includes an extension section, the extension section is located downstream of the first curved section in the air outlet direction, and the extension section is arranged to be inclined downward in the air outlet direction.

7. an indoor unit of an air conditioner according to claim 6, wherein the extension section is connected to the first curved surface section tangentially.

8. An indoor unit of an air conditioner according to claim 1, wherein at least a part of a top surface of the outlet is a second curved surface section, the second curved surface section is a convex curved surface which gradually extends upward in an air outlet direction, and a curvature of the second curved surface section gradually increases in the air outlet direction.

9. An indoor unit of an air conditioner according to claim 8, wherein the first curved surface section and the second curved surface section are provided at opposite ends of the air outlet.

10. The indoor unit of an air conditioner according to any one of claims 1 to 9, wherein the indoor unit of an air conditioner is a vertical type, the air outlet is vertically arranged, and the wind wheel is a cross-flow wind wheel vertically arranged.

11. An indoor unit of an air conditioner according to claim 8, wherein the height of the bottom surface of the air outlet does not exceed 1/3 the height of the vertical unit.

12. An indoor unit of an air conditioner according to any one of claims 1 to 9, further comprising a wind guide assembly including a plurality of wind guide strips provided on the outlet port at intervals in a height direction.