CN215863768U

CN215863768U - Air outlet net cover and air conditioner

Info

Publication number: CN215863768U
Application number: CN202122204292.9U
Authority: CN
Inventors: 郑亚雷; 王其桢; 李跃飞; 杨峰; 余东东
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-02-18
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses an air outlet mesh enclosure and an air conditioner, relates to the technical field of air conditioners and aims to solve the technical problem that the air outlet volume is small when air is exhausted from the air outlet mesh enclosure. The air-out screen panel includes: the air guide grille is positioned between the positioning piece and the frame and is respectively connected with the positioning piece and the frame, and the frame is annular and surrounds the circumferential outer side of the positioning piece; the air outlet net cover is provided with a windward side facing the fan blades and an air outlet side deviating from the fan blades, at least one air outlet is formed in the frame, and the air outlet is communicated with the windward side and the air outlet side. The air outlet mesh enclosure disclosed by the utility model is applied to an air conditioner and is used for rectifying and guiding air flow discharged by the air conditioner.

Description

Air outlet net cover and air conditioner

Technical Field

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

Background

In the existing air conditioner, an air conditioner external unit comprises a shell, a heat exchanger, a fan assembly, fan blades and the like which are arranged in the shell, wherein an air opening is formed in the position, corresponding to the fan blades, of the shell, and an air outlet mesh enclosure is generally arranged at the air opening. The air outlet net cover is used for rectifying and guiding air flow discharged by the fan blades and the like, and can also prevent external foreign matters from entering the shell to cause damage to the wind wheel. However, in the conventional air conditioner external unit, when the air discharged from the fan blade flows through the air outlet mesh enclosure, a certain pressure loss is generated, which causes an increase in airflow vortex during air discharge and a small amount of air discharged.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air outlet net cover and an air conditioner, and aims to solve the technical problem that the air outlet quantity of the air outlet net cover is small.

In order to achieve the above object, the present invention provides an air outlet net cover comprising: the air guide grille is positioned between the positioning piece and the frame and is respectively connected with the positioning piece and the frame, and the frame is annular and surrounds the circumferential outer side of the positioning piece; the air outlet net cover is provided with a windward side facing the fan blades and an air outlet side deviating from the fan blades, at least one air outlet is formed in the frame, and the air outlet is communicated with the windward side and the air outlet side.

The utility model has the beneficial effects that: through being equipped with the air outlet on the frame, the air current of air-out screen panel windward side can also flow to the air-out side through the air outlet except can flowing to the air-out side through leading style bars, has increased the area of air current circulation to make the air output increase.

On the basis of the technical scheme, the utility model can be further improved as follows.

Further, the frame comprises an installation part and a housing part, the installation part and the housing part are both annular, and the installation part is connected with the end part of the air guide grid; the housing part is arranged around the circumferential outer side of the mounting part and connected to the edge of the mounting part;

the air outlet is positioned on the cover part.

Furthermore, the air outlet is a strip-shaped outlet extending along the circumferential direction of the cover part.

Furthermore, the housing part is provided with a side surface extending along the axial direction of the frame, and the air outlet is arranged on the side surface of the housing part.

Furthermore, an air outlet grid is arranged in the air outlet.

Furthermore, the number of the air outlets is at least two, and the at least two air outlets are arranged at different circumferential positions of the frame at intervals.

Furthermore, the extension lengths of the air outlets along the circumferential direction of the frame are the same.

Further, the frame is a circular ring-shaped piece;

the frame comprises a connecting part between the two air outlets, and the central angles occupied by the two air outlets relative to the center of the frame are both alpha 1; the central angle that connecting portion occupy relative to the frame center is alpha 2, satisfies:

alpha 2 is more than or equal to 20 degrees and less than or equal to 40 degrees; and is

α2≤α1≤(90°-α2)。

Further, the air guide grid comprises a plurality of spokes and a plurality of air guide strips, the spokes are connected between the positioning piece and the frame, the spokes are radially distributed along the radial direction of the frame, and the air guide strips are connected between every two adjacent spokes.

Further, the cross section of spoke is the rectangle, and the contained angle theta 1 between the central axis of the normal line that the side of spoke corresponds and the frame satisfies:

50°≤θ1≤65°。

further, the projected shape of the spoke on the first plane is a curve, and an included angle θ 2 between tangent lines at two end positions of the curve satisfies:

(45×360)/(π×d)≤θ2≤(85×360)/(π×d)；

wherein d is the diameter of the frame, and the first plane is perpendicular to the central axis of the frame.

Furthermore, the air guide strips surround the positioning piece, the number of the air guide strips positioned between two adjacent spokes is multiple, and the air guide strips positioned between two adjacent spokes are arranged at intervals in the radial direction of the air outlet mesh enclosure;

the terminal surface that is located the air-out side of wind-guiding strip satisfies with the contained angle theta 3 on first plane:

0°≤θ3≤45°；

wherein, the first plane is perpendicular to the central axis of the frame.

Furthermore, the spoke has the kink, and the kink is buckled towards the direction that deviates from the fan blade, and the kink is greater than the kink with the distance of setting element and frame.

Further, the length of the frame along the self axial direction is t1, the maximum axial distance between the air outlet side edge of the bending part and the windward side edge of the frame along the frame is t2, the axial distance between the air outlet side edge of the positioning part and the windward side edge of the frame along the frame is t3, and the parameters satisfy the following formula:

0≤(t2-t1)≤0.25t1；

0.2t1≤(t3-t1)≤0.65t1。

the utility model also provides an air conditioner, which comprises a shell and the air outlet mesh enclosure in any technical scheme; the shell is provided with an opening, and the air outlet mesh enclosure is positioned in the opening and connected with the shell.

Further, when the air outlet mesh enclosure is connected to the shell, the air outlet protrudes out of the shell.

Further, the air outlet is located the bottom side of air-out screen panel.

The air conditioner has the same beneficial effects as the air outlet mesh enclosure, and is not repeated herein.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded schematic view of an air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an air outlet mesh enclosure according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an air outlet mesh enclosure at another angle according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

fig. 6 is a partial enlarged view of fig. 4 at B;

fig. 7 is a schematic view of a projection structure of the air outlet mesh enclosure on the first plane according to the embodiment of the present invention;

fig. 8 is a schematic structural view of an air outlet mesh enclosure at another angle according to an embodiment of the present invention;

fig. 9 is a partial enlarged view at C of fig. 8;

fig. 10 is a cross-sectional view of an air outlet mesh enclosure according to an embodiment of the present invention.

The reference numbers illustrate:

Detailed Description

In the related art air conditioner, the outdoor unit has a casing, an air opening is formed in the casing, and an air outlet mesh enclosure is disposed in the air opening, so that air flow in the outdoor unit can be discharged to the outside of the outdoor unit through the air outlet mesh enclosure. Wherein, the effect of air-out screen panel mainly is the air current outflow shell in the shell of being convenient for to can protect operating personnel. However, in general, when the air outlet cover flows out of the housing, there is a certain wind resistance to the flowing air, which causes the air output of the air outlet cover to be affected.

In view of this, in the embodiment of the utility model, the air outlet is arranged at the frame position on the air outlet mesh enclosure to assist the air outlet of the air outlet grille in the air outlet mesh enclosure, so that the area for air flow circulation can be increased, and the air outlet amount is increased.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is an exploded schematic view of an air conditioner according to an embodiment of the present invention.

Referring to fig. 1, an embodiment of the present invention provides an air conditioner 200, and the air conditioner 200 may be, for example, a central air conditioner, or may be another type of air conditioner 200.

The air conditioner 200 may include an air conditioner indoor unit (not shown) and an air conditioner outdoor unit 100. The air conditioner indoor unit is disposed indoors, and the air conditioner outdoor unit 100 is disposed outdoors.

In the refrigeration process, the air conditioner external unit 100 is used for cooling the heat exchange medium with higher temperature to form a low-temperature heat exchange medium, the low-temperature heat exchange medium enters the air conditioner internal unit through a pipeline to exchange heat with indoor air, the temperature of the indoor air is reduced, the heat exchange medium after heat exchange returns to the air conditioner external unit 100 again, and the purpose of cooling is achieved through circulation.

The outdoor unit 100 may include a casing 101, a fan blade 102, and an air outlet mesh enclosure 110, wherein an accommodating cavity is formed in the casing 101, an opening 1011 is formed in the casing 101 and communicates with the accommodating cavity, the fan blade 102 is installed in the accommodating cavity at a position corresponding to the opening 1011, the fan blade 102 may be driven by a motor to rotate, and the air outlet mesh enclosure 110 is disposed in the opening 1011.

For example, the air outlet cover 110 may be connected to an inner edge of the opening 1011 by a fastener or the like. The air outlet mesh enclosure 110 is covered at the opening 1011, so that the airflow blown out by the fan blade 102 can pass through, the operator is prevented from contacting the rotating fan blade 102, and external foreign matters can be prevented from entering the housing 101.

Moreover, the outer edge of the air outlet cover 110 may match the shape of the inner edge side of the opening 1011, so that when the air outlet cover 110 is disposed in the opening 1011, the air flow may flow out of the housing 101 through the air outlet cover 110.

In the embodiment of the present invention, a compressor, a condenser, and other units commonly used in the art may be further disposed in the casing 101 to achieve normal operation of the outdoor unit 100 of the air conditioner, which is not described herein again.

In addition, for convenience of description, in the embodiment of the present invention, a side of the air outlet mesh enclosure 110 facing the fan blade 102 is defined as an windward side, and a side of the air outlet mesh enclosure 110 departing from the fan blade 102 is defined as an air outlet side. Wherein, the symbol "Y" represents the windward side, and the symbol "C" represents the air-out side.

Fig. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention, and fig. 3 is a schematic structural view of an air outlet cover according to an embodiment of the present invention.

Referring to fig. 2 and 3, the air outlet mesh enclosure 110 according to the embodiment of the present invention includes: the positioning member 120, the frame 130 and the air guide grilles 140 located between the positioning member 120 and the frame 130, the air guide grilles 140 are respectively connected to the positioning member 120 and the frame 130, and the frame 130 is annular and surrounds the circumferential outer side of the positioning member 120; at least one air outlet 150 is formed in the frame 130, and the air outlet 150 is communicated with the windward side Y and the air outlet side C.

In the above scheme, the air outlet 150 is arranged on the frame 130, so that the airflow on the windward side of the air outlet net cover 110 can flow to the air outlet side through the air guide grille 140, and can also flow to the air outlet side through the air outlet 150 on the side of the air guide grille 140, thereby increasing the area for airflow circulation, and further increasing the air outlet volume.

The frame 130 is an annular member, and the frame 130 surrounds the positioning member 120 at the circumferential outer side, which means that the positioning member 120 is sleeved at the inner side of the annular frame 130, and the positioning member 120 and the frame 130 are spaced apart from each other in the radial direction of the positioning member 120. It is to be understood that the frame 130 is not limited to a circular ring shape, and may have a different closed shape such as a square ring shape.

With respect to the relative positions of the positioning member 120 and the frame 130 in the axial direction of the frame 130, as shown in fig. 1, the positioning member 120 and the frame 130 at least partially overlap in the axial direction of the frame 130.

In the embodiment of the present invention, as long as the air guide grille 140 can be supported and fixed between the positioning member 120 and the frame 130, the relative positions of the positioning member 120 and the frame 130 in the axial direction may be flexibly set, which is not limited in the embodiment of the present invention.

The positioning member 120 may be formed in a circular truncated cone shape, and the surface facing the air outlet side may be streamlined, so as to reduce the influence on the air outlet of the air outlet mesh enclosure 110 as much as possible.

The air guide grilles 140 have an end facing the frame 130 and an end facing the spacer 120, wherein the end of the air guide grilles 140 facing the spacer 120 may be connected to an outer edge of the spacer 120, for example, to a circumferential outer surface of the spacer 120.

In addition, the end of the air guide grill 140 facing the frame 130 is connected to the inner surface of the frame 130, for example, the circumferential inner surface of the frame 130, and thus the air guide grill 140 can be connected and fixed between the spacer 120 and the frame 130.

The air guiding grille 140 may be a grille structure, and a plurality of air outlet holes are formed on the grille structure, and the air outlet holes can enable the airflow on the windward side Y of the air outlet net cover 110 to pass through the air guiding grille 140 and circulate to the air outlet side C.

In the embodiment of the present invention, referring to fig. 3, at least one air outlet 150 is disposed on the frame 130, and the air outlet 150 communicates the windward side Y and the air-out side C. In other words, the air outlet 150 can communicate between the inside of the casing 101 and the outside of the casing 101. The air flow inside the casing 101 may flow out of the casing 101 through the air guide grill 140, and may also flow out of the casing 101 through the air outlet 150.

The number of the air outlets 150 may be selected according to the actual air output requirement, and it can be understood that, when the number of the air outlets 150 is at least two, the at least two air outlets 150 may be arranged at different circumferential positions of the frame 130 at intervals.

In order to make the air flow uniformly discharged from each air outlet 150, at least two air outlets 150 may be uniformly arranged around the center of the frame 130. The extending length of each air outlet 150 along the circumferential direction of the frame 130 may be the same.

In fig. 3, two air outlets 150 are provided on the frame 130 for illustration. It should be noted that the number of the air outlets 150 is similar to that of the other cases, and is not described herein again.

The two air outlets 150 are arranged at different circumferential positions on the frame 130 at intervals. The air outlets 150 have the same length extending in the circumferential direction of the frame 130.

Fig. 4 is a schematic structural view of another angle of the air outlet cover 110 according to the embodiment of the present invention, fig. 5 is a partially enlarged view of a portion a of fig. 4, and fig. 6 is a partially enlarged view of a portion B of fig. 4.

Referring to fig. 4, 5 and 6, the bezel 130 includes an installation portion 131 and a housing portion 132, the installation portion 131 and the housing portion 132 are both annular, the installation portion 131 is a member for installing the air guide grill 140, and an end portion of the air guide grill 140 is connected to the installation portion 131; the cover portion 132 may be disposed around the circumferential outer side of the mounting portion 131, and the cover portion 132 is connected to the edge of the mounting portion 131; the outlet 150 may be located on the housing portion 132.

Illustratively, the housing portion 132 has a side surface extending in the axial direction of the bezel 130, and the air outlet 150 may be disposed at the side surface of the housing portion 132.

The mounting portion 131 is used for mounting the air guide grille 140, the cover portion 132 is located outside the mounting portion 131, one end of the mounting portion 131 is connected to the cover portion 132, and the other end of the mounting portion 131 extends toward the windward side Y. The cover portion 132 is disposed outside the mounting portion 131, and a connecting portion between the air guide grill 140 and the mounting portion 131 is disposed inside, so that the appearance of the outlet cover 110 is beautiful.

When the mounting portion 131 is formed in a ring shape, the mounting portion 131 may be connected to an end portion of the air guide grill 140 in the axial direction of the air guide grill 110, and the connection may be performed along the entire circumferential direction of the air guide grill 140.

Referring to fig. 4 and 5, when the thickness of the air guide grill 140 in the axial direction of the outlet hood 110 is small, the dimension of the mounting portion 131 in the axial direction of the outlet hood 110 is correspondingly small, and in order to increase the connection strength between the mounting portion 131 and the housing portion 132, it is considered to provide the rib 133 between the mounting portion 131 and the housing portion 132.

In addition, the dimension of the mounting portion 131 in the axial direction of the outlet hood 110 is greater than the dimension of the mounting portion 131 in the axial direction of the outlet hood 110. This can prevent the mounting portion 131 from blocking the air outlet 150 of the housing portion 132.

In the embodiment of the present invention, in order to prevent external impurities from entering the inner side of the casing 101, an air outlet grille 170 may be disposed in the air outlet 150, and the air outlet grille 170 may be disposed at an inner edge of the opening of the air outlet 150.

For example, when the air outlet 150 is a strip-shaped outlet extending along the circumferential direction of the casing portion 132, the air outlet grille 170 is also formed as a strip-shaped grille extending along the circumferential direction of the casing portion 132.

It is understood that when the outlet 150 is provided with a grill bar, the ribs 133 can be connected to the grill bar, and a part of the structure of the ribs 133 also forms a part of the outlet grill 170. Wherein the extending direction of the ribs 133 may be perpendicular to the bar grids.

Referring to fig. 5, as mentioned above, the two air outlets 150 are spaced apart from each other, and a connecting portion 160 may be disposed between the two air outlets 150, where the connecting portion 160 may be used to fix the air outlet cover 110 in the opening 1011 formed in the housing.

For example, referring to fig. 1 and 5, the connecting portion 160 is provided with a mounting post 161 on a radially inner surface of the air outlet cover 110, a mounting seat 162 is provided on an inner side surface of the opening 1011 at a position corresponding to the mounting post 161, and the mounting post 161 may be connected to the mounting seat 162 by a fastener or the like, so that the air outlet cover 110 may be connected to the opening 1011.

It is understood that the number of the mounting posts 161 provided on the radially inner surface of the air outlet cover 110 may be plural, and the plural mounting posts 161 may be arranged at intervals in the circumferential direction of the air outlet cover 110, and the plural mounting seats 162 may be provided on the inner side surface of the opening 1011 at positions corresponding to the mounting posts 161. So as to realize the firm connection between the wind screen cover and the shell 101. In addition, in the case of having multiple sets of mounting posts 161 and mounting seats 162, the sets of mounting posts 161 and mounting seats 162 may be evenly distributed in the circumferential direction of the frame around the center of the air outlet grille.

Also, in the case that the outlet 150 is plural, and the plural outlets 150 are arranged at intervals on the frame 130, the respective sets of the mounting posts 161 and the mounting seats 162 may be located in the intervals between the adjacent outlets 150.

In addition, in order to avoid the influence of the housing 101 on the normal air outlet of the air outlet 150, when the air outlet cover 110 is connected to the housing 101, the air outlet 150 should protrude out of the housing 101. That is, the structure of the portion of the frame 130 provided with the air outlet 150 protrudes from the air outlet side C of the casing 101.

It can be understood that when the grille 110 is installed on the opening 1011, the outlet 150 needs to be located at the bottom side (negative direction of Z axis in fig. 2) of the grille 110, so as to prevent impurities such as raindrops from falling into the inside of the housing 101 from the top side of the grille 110.

In the embodiment of the present invention, the size of the air outlet 150 cannot be too large, which may result in insufficient strength of the air outlet mesh enclosure 110 and easy damage; the size of the air outlet 150 cannot be too small, so that the improvement of the air output is small.

When the outlet 150 extends along the circumferential direction of the frame, the size of the outlet 150 may be defined by the central angle occupied by the outlet 150 relative to the center of the frame 130. Referring to fig. 3, the frame 130 is a circular ring-shaped member, and the two air outlets 150 may be symmetrically disposed with respect to the center of the frame 130, and central angles occupied by the two air outlets 150 with respect to the center of the frame 130 (i.e., the axis of the air outlet cover 110) are both α 1; the central angle occupied by the connecting portion 160 with respect to the center of the frame 130 is α 2, and satisfies:

Alpha 2 is more than or equal to alpha 1 and is less than or equal to (90-alpha 2). When the above conditions are satisfied, the strength of the air outlet mesh enclosure 110 is better, and the air output is obviously improved.

Referring to fig. 4 and 5, as a possible embodiment, the air guide grid 140 includes a plurality of spokes 1401 and a plurality of air guide strips 1402, the plurality of spokes 1401 are connected between the positioning member 120 and the rim 130, the plurality of spokes 1401 are radially distributed along the radial direction of the rim 130, and the plurality of air guide strips 1402 are connected between two adjacent spokes 1401.

It should be noted that the structure of the air guiding grille 140 is not limited to this, and other arrangement structures may be adopted as long as a passage through which the air flow passes is formed on the air guiding grille 140.

In the outer machine of current air conditioner, the rib design of air-out screen panel does not have the direction of fine matching air-out air current, and this can lead to the increase of the vortex of air-out air current to arouse pneumatic noise's rising. And the wind resistance of the common net cover is large, so that the outlet air flow generates large pressure loss. In order to solve the problem, the utility model also optimizes the structures of the spokes 1401 and the wind guide strips 1402 in the wind guide grid 140.

For example, referring to fig. 5, the spokes 1401 may be disposed obliquely to match the wind field direction of the air flow, so as to reduce the wind resistance of the wind outlet cover and reduce the wind outlet noise. In other words, the sides of the spoke 1401 are not distributed along the central axis of the rim 130, but are angled with respect to the central axis O of the rim 130.

For example, the spoke 1401 may have a rectangular cross section, and an included angle θ 1 between a normal F corresponding to a side surface of the spoke 1401 and the central axis O of the bezel 130 satisfies:

50°≤θ1≤65°。

thereby the actual air-out condition can change according to the difference of fan blade here, can design the inclination angle theta 1 of spoke through numerical simulation in order to match the air current direction, reduces the air current impact loss.

The simulation shows that when the angle theta 1 of the spoke is 65 degrees or theta 1 is 50 degrees, the airflow direction of most fan blades at the rated rotating speed can be met.

Fig. 7 is a schematic view of a projection structure of the air outlet mesh enclosure 110 on the first plane according to the embodiment of the present invention.

Referring to fig. 7, a plane perpendicular to the central axis of the frame 130 may be defined as a first plane, and the air outlet cover 110 is projected onto the first plane, so as to obtain the structural schematic diagram shown in fig. 7.

In fig. 7, the projected shape of the spoke 1401 on the first plane is a curve, and an angle θ 2 between tangent lines Q1 and Q2 at both end positions of the curve satisfies:

(45×360)/(π×d)≤θ2≤(85×360)/(π×d)；

where d is the diameter of the frame 130, and the first plane is perpendicular to the central axis of the frame 130.

Therefore, the spokes 1401 can be matched with the flow direction of the wind field at the air outlet net cover 110 as much as possible, the wind resistance to the air flow is reduced, and the influence on the air output is minimum.

In addition, the projection of the profile line of the spoke on the first plane is an S-shaped curve. It can be observed in fig. 7 that the spokes may be arranged in a counter-clockwise or clockwise direction around the centre of the wind-off screen.

It will be appreciated that in addition to setting the attitude of the spokes 1401 to be inclined to fit the wind field, it is also contemplated to have the wind-guiding strips 1402 also be inclined. In other words, the air guide strips 1402 are also disposed obliquely to the plane perpendicular to the frame axis.

Fig. 8 is a schematic structural view of another angle of the air outlet mesh enclosure 110 according to the embodiment of the present invention, and fig. 9 is a partial enlarged view of a portion C of fig. 8.

Referring to fig. 8 and 9, the wind guide strips 1402 are exemplarily disposed around the positioning member 120, for example, the wind guide strips 1402 may extend along a circumferential direction of the positioning member 120.

The number of the wind guide strips 1402 between two adjacent spokes 1401 is plural, and the plural wind guide strips 1402 between two adjacent spokes 1401 are arranged at intervals in the radial direction of the wind screen cover 110 to form a passage through which the air flow passes.

An included angle θ 3 between the end surface of the air guide bar 1402 on the air outlet side and the first plane P satisfies:

theta 3 is more than or equal to 0 degree and less than or equal to 45 degrees; therefore, the air guide strips 1402 can be matched with the flow direction of the wind field at the air outlet net cover 110 as much as possible, and the influence on the air output is minimum.

Generally, the angle θ 3 should be varied according to the blowing angle of the outdoor unit, so that the air guide bars and the air flow passing through the grille can be optimally matched, thereby reducing the resistance of the grille and improving the noise.

Fig. 10 is a cross-sectional view of the air outlet mesh enclosure 110 according to the embodiment of the present invention, referring to fig. 10, the spoke 1401 has a bending portion 14011, the bending portion 14011 bends toward a direction away from the fan blade 102, and a distance between the bending portion 14011 and the positioning member 120 is greater than a distance between the bending portion 14011 and the frame 130. Compared with the positioning member 120, the bent portion 14011 is closer to the frame 130. This is because in the wind field on the air outlet side C of the air outlet mesh enclosure 110, the air outlet region of the air flow is usually located at a position close to the frame 130, and therefore the bent portion 14011 is provided in the region close to the frame 130, so that the spoke 1401 is locally arched toward the air outlet side C, and the distance between the bent portion 14011 and the fan blade 102 can be locally increased at the position of the bent portion, which can reduce the noise during air outlet and increase the air outlet volume.

For example, the projection of the spoke 1401 on a plane passing through the axis of the wind screen cover may also be an S-shaped curve. In other words, the spokes 1401 are first slightly curved towards the windward side Y and then gradually curved towards the air-out side C in the radial direction of the air-out grille.

In addition, in order to further increase the air output of the air outlet cover 110, the following parameters may be optimized:

the length of the frame 130 along the axial direction thereof is t1, the maximum axial distance between the air outlet side edge of the bending portion 14011 and the windward side edge of the frame 130 along the frame 130 is t2, the axial distance between the air outlet side edge of the positioning member 120 and the windward side edge of the frame 130 along the frame 130 is t3, and the above parameters satisfy the following formula:

0≤(t2-t1)≤0.25t1；

0.2t1≤(t3-t1)≤0.65t1。

the embodiment of the utility model provides an air outlet mesh enclosure 110 and an air conditioner 200. Through being equipped with air outlet 150 on frame 130, air outlet 150 can be located the side of air-out grid 140, and the air current of air-out grid cover 110 windward side can flow to the air-out side through air-guiding grid 140 except, can also flow to the air-out side through air outlet 150 of air-guiding grid 140 side outside, has increased the area of air current circulation like this to make the air output increase.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," 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 utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. The utility model provides an air outlet mesh enclosure which characterized in that includes: the air guide grille is positioned between the positioning piece and the frame and is respectively connected to the positioning piece and the frame, and the frame is annular and surrounds the circumferential outer side of the positioning piece;

the air outlet net cover is provided with a windward side facing the fan blade and an air outlet side deviating from the fan blade, at least one air outlet is formed in the frame, and the air outlet is communicated with the windward side and the air outlet side.

2. The air outlet mesh enclosure of claim 1, wherein the frame comprises an installation part and a housing part, the installation part and the housing part are both annular, and the installation part is connected with the end part of the air guide grille; the housing part is arranged around the circumferential outer side of the mounting part and connected to the edge of the mounting part;

the air outlet is located on the cover portion.

3. An air outlet mesh enclosure according to claim 2, wherein the enclosure portion has a side surface extending in an axial direction of the frame, and the air outlet is provided in the side surface of the enclosure portion.

4. The air outlet mesh enclosure according to claim 2, wherein an extension of the mesh portion in a central axis direction of the bezel is larger than an extension of the mounting portion in the central axis direction.

5. The air outlet mesh enclosure of claim 1, wherein an air outlet grille is disposed in the air outlet.

6. The air outlet mesh enclosure of claim 1, wherein the number of the air outlets is at least two, and at least two of the air outlets are arranged at different circumferential positions of the frame at intervals.

7. The air outlet mesh enclosure of claim 6, wherein the air outlets have the same extension length along the circumferential direction of the frame.

8. An air outlet mesh enclosure according to claim 6, wherein the frame is a circular ring-shaped member;

the number of the air outlets is two, the frame comprises a connecting part between the two air outlets, and the central angles occupied by the two air outlets relative to the center of the frame are both alpha 1; the central angle of the connecting part relative to the center of the frame is alpha 2, and the following requirements are met:

α2≤α1≤(90°-α2)。

9. An air outlet mesh enclosure according to any one of claims 1 to 8, wherein the air guide grille includes a plurality of spokes and a plurality of air guide strips, the plurality of spokes are connected between the positioning member and the frame, the plurality of spokes are radially distributed along the radial direction of the frame, and the air guide strip is connected between every two adjacent spokes.

10. The air outlet mesh enclosure of claim 9, wherein the projection shape of the spoke on the first plane is a curve, and an included angle θ 2 between tangents at two end positions of the curve satisfies:

(45×360)/(π×d)≤θ2≤(85×360)/(π×d)；

11. The air outlet mesh enclosure of claim 9, wherein the air guide strips surround the positioning member, the number of the air guide strips between two adjacent spokes is plural, and the plural air guide strips between two adjacent spokes are arranged at intervals in a radial direction of the air outlet mesh enclosure;

the air guide strip is located an included angle theta 3 between the end face of the air outlet side and the first plane meets the following requirements:

0°≤θ3≤45°；

wherein the first plane is perpendicular to the central axis of the frame.

12. The air outlet mesh enclosure according to claim 9, wherein the spoke has a bending portion, the bending portion is bent toward a direction away from the fan blade, and a distance between the bending portion and the positioning member is greater than a distance between the bending portion and the frame.

13. The air outlet mesh enclosure of claim 12, wherein the length of the frame in the axial direction of the frame is t1, the maximum distance between the air outlet side edge of the bent portion and the windward side edge of the frame in the axial direction of the frame is t2, the distance between the air outlet side edge of the positioning member and the windward side edge of the frame in the axial direction of the frame is t3, and the parameters satisfy the following formula:

0≤(t2-t1)≤0.25t1；

0.2t1≤(t3-t1)≤0.65t1。

14. an air conditioner comprising a housing and a hood as claimed in any one of claims 1 to 13; the shell is provided with an opening, and the air outlet mesh enclosure is positioned in the opening and connected with the shell.

15. The air conditioner according to claim 14, wherein when the air outlet cover is connected to the housing, the air outlet of the air outlet cover protrudes outside the housing.