Wind shield, air conditioner indoor unit and air conditioner

Abstract

The present invention discloses a windshield, an air conditioner indoor unit and an air conditioner, wherein the windshield includes a plate body and a plurality of louvers, the plate body extends in the left-right direction, the plate body includes a left plate body and a right plate body connected to each other; the plurality of louvers are arranged in the left-right direction on the plate body, each louver is provided with a plurality of mounting holes, each mounting hole is provided with a plurality of first blades, a plurality of second blades, and an annular connecting portion; the plurality of louvers include a plurality of first louvers installed on the left plate body, and a plurality of second louvers installed on the right plate body; wherein the first louvers are all inclined to the left, the second louvers are all inclined to the right, and the plate body on the left side of each first louver and the plate body on the right side of each second louver are provided with openings. The technical solution of the present invention slows down the flow rate of the airflow at the air outlet of the air conditioner indoor unit and improves the windless effect of the air conditioner indoor unit.

Description

Technical Field

[0001] The invention relates to the technical field of air conditioning, and in particular to a wind shield, an air conditioner indoor unit and an air conditioner. Background Art

[0002] When the existing air conditioner is delivering air, the air after heat exchange is blown out through the air outlet through the fan wheel. When the user is in the air supply range of the air conditioner, the air flow from the air outlet of the air conditioner has a fast flow rate and will blow directly to the user. Especially in the hot summer, if the cold air blows directly on the user's body surface for a long time, it is easy to cause human discomfort, which is not conducive to the user's health, especially for the elderly, children, etc., it is more likely to cause colds and other diseases. Summary of the invention

[0003] The main purpose of the present invention is to provide a wind shield, which is intended to reduce the velocity of the air flow blown out by an air conditioner.

[0004] To achieve the above object, the present invention provides a wind shield for installation in an air outlet duct of an indoor unit of an air conditioner, the wind shield comprising:

[0005] A plate body extending in the left-right direction, the plate body comprising a left plate body and a right plate body connected to each other;

[0006] A plurality of louvers are arranged on the plate body along the left-right direction, each of the louvers is provided with a plurality of mounting holes, each of the mounting holes is provided with a plurality of first blades, a plurality of second blades, and an annular connecting portion, one end of the first blade is connected to the inner wall of the mounting hole, and the other end is connected to the outer wall of the annular connecting portion, one end of the second blade is connected to the inner wall of the annular connecting portion, and the other end is extended toward the center of the annular connecting portion and connected; wherein the plurality of first blades are all inclined in the same direction toward one hole surface of the mounting hole, and the plurality of second blades are all inclined in the same direction toward the other hole surface of the mounting hole; the plurality of louvers include a plurality of first louvers installed on the left plate body, and a plurality of second louvers installed on the right plate body;

[0007] The first louvers are all inclined toward the left, and the second louvers are all inclined toward the right. An opening is provided on the plate body on the left side of each of the first louvers and on the plate body on the right side of each of the second louvers.

[0008] Preferably, the plurality of first blades and the plurality of second blades are staggeredly distributed along the radial direction of the mounting hole.

[0009] Preferably, the first blades are bent in the same direction in the circumferential direction of the mounting hole and are arranged in an arc shape; and / or the second blades are bent in the same direction in the circumferential direction of the mounting hole and are arranged in an arc shape.

[0010] Preferably, the wind shield plate further comprises a fixing portion arranged at the center of the annular connecting portion, the inner ends of the second blades are connected to the fixing portion, and the fixing portion is provided with a vent hole.

[0011] Preferably, the inclination angle of the first blade and the inclination angle of the second blade are both greater than 0° and less than or equal to 60°.

[0012] Preferably, a plurality of air dispersion holes are provided on the louvers around the mounting holes.

[0013] Preferably, the inclination angle of the louvers gradually decreases from both ends to the middle; or the opening degrees of two adjacent louvers gradually decrease from the middle to both sides.

[0014] Preferably, the first louver and / or the second louver are arranged to be inclined in a straight line; or the first louver and / or the second louver are arranged to be inclined in an arc.

[0015] Preferably, the inclination angles of the first louvers and the second louvers in the left-right direction are 10° to 60°.

[0016] Preferably, the louver is made of elastic material.

[0017] Preferably, the louver is flexibly connected to the plate body.

[0018] Preferably, ventilation holes are provided on the plate body corresponding to between the first louver on the far right and the second louver on the far left.

[0019] The present invention also provides an air conditioner indoor unit, which includes an indoor unit body and a wind shield installed on the air outlet duct of the indoor unit body, wherein the wind shield includes a plate body and a plurality of louvers, the plate body extends in the left-right direction, and the plate body includes a left plate body and a right plate body connected to each other; the plurality of louvers are arranged in the left-right direction on the plate body, each of the louvers is penetrated by a plurality of mounting holes, each of the mounting holes is provided with a plurality of first blades, a plurality of second blades, and an annular connecting portion, one end of the first blade is connected to the inner wall of the mounting hole, and the other end is connected to the annular connecting portion The outer wall of the connecting part, one end of the second blade is connected to the inner wall of the annular connecting part, and the other end extends toward the center of the annular connecting part and is connected; wherein, multiple first blades are inclined in the same direction toward one hole surface of the mounting hole, and multiple second blades are inclined in the same direction toward the other hole surface of the mounting hole; the multiple louvers include multiple first louvers installed on the left plate body, and multiple second louvers installed on the right plate body; wherein, the first louvers are inclined to the left, and the second louvers are inclined to the right, and openings are provided on the plate body on the left side of each of the first louvers and on the plate body on the right side of each of the second louvers.

[0020] The present invention also provides an air conditioner, comprising an air conditioner outdoor unit and an air conditioner indoor unit, the air conditioner indoor unit comprising an indoor unit main body, and a wind shield installed on the air outlet duct of the indoor unit main body, the wind shield comprising a plate body and a plurality of louvers, the plate body extending in the left-right direction, the plate body comprising a left plate body and a right plate body connected to each other; the plurality of louvers are arranged on the plate body in the left-right direction, each of the louvers is penetrated by a plurality of mounting holes, each of the mounting holes is provided with a plurality of first blades, a plurality of second blades, and an annular connecting portion, one end of the first blade is connected to the inner wall of the mounting hole, and the other end is connected to the annular connecting portion The outer wall of the annular connecting portion, one end of the second blade is connected to the inner wall of the annular connecting portion, and the other end extends toward the center of the annular connecting portion and is connected; wherein, multiple first blades are inclined in the same direction toward one hole surface of the mounting hole, and multiple second blades are inclined in the same direction toward the other hole surface of the mounting hole; the multiple louvers include multiple first louvers installed on the left plate body, and multiple second louvers installed on the right plate body; wherein, the first louvers are inclined toward the left, and the second louvers are inclined toward the right, and openings are provided on the plate body on the left side of each of the first louvers and on the plate body on the right side of each of the second louvers, and the air conditioner outdoor unit is connected to the indoor unit.

[0021] The technical solution of the present invention adopts the method of setting multiple openings on the plate body and installing multiple louvers. By tilting the louvers in opposite directions, the airflows blown out from the multiple openings can flow in opposite directions, so that the airflows blown out will not blow directly on the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a windshield of the present invention;

[0024] Figure 2 for Figure 1 A schematic structural diagram of an embodiment of a middle louver;

[0025] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0026] Figure 4 for Figure 1 A schematic structural diagram of another embodiment of the middle louver;

[0027] Figure 5 for Figure 1 A cross-sectional view of an embodiment of a windshield along MM;

[0028] Figure 6 for Figure 1 A cross-sectional view of another embodiment of a windshield along MM;

[0029] Figure 7 It is a structural schematic diagram of an embodiment after the louver and the plate body are assembled, wherein the louver is made of elastic material;

[0030] Figure 8 It is a structural schematic diagram of another embodiment after the louver and the plate body are assembled, wherein the louver and the plate body are connected by elastic material;

[0031] Fig. 9 It is a structural schematic diagram of another embodiment of the windshield of the present invention;

[0032] Fig.10 The figure is a schematic diagram of the structure of an air conditioner equipped with the wind shield of the present invention.

[0033] Description of Figure Numbers:

[0034] Label name Label name 10 Wind deflector 11 Board body 110 Opening 111 Ventilation holes 12 Blinds 12a The first hundred leaves 12b No. 200 120 Mounting holes 121 First blade 121a First air gap 122 Second blade 122a Second air gap 123 Ring connection 124 Fixed part 125 Air vents

[0035] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0039] Figures 1 to 10 The preferred embodiments and variant embodiments of the windshield of the present invention are shown, and there are multiple improvements in these embodiments; in the specific description, each improvement is described as an embodiment, and the technical features of the following embodiments can be freely combined without structural interference and conflict. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope of the present invention.

[0040] The present invention provides a wind shield, and an air conditioner indoor unit (such as Figure 1 and Fig.10 ), and an air conditioner including the air conditioner indoor unit. The air conditioner can be a wall mounted unit or a cabinet unit, and the following content will specifically take the wall mounted unit as an example for detailed description. In addition, the wind shield is installed at the air duct of the indoor unit of the air conditioner, and can be installed at the air outlet or in the air duct (inside the air outlet).

[0041] In the embodiment of the present invention, Figures 1 to 3As shown, the windshield 10 includes a board body 11 and a plurality of louvers 12, wherein the board body 11 extends in the left-right direction, and the board body 11 includes a left board body (not shown in the figure) and a right board body (not shown in the figure) connected to each other. The multiple louvers 12 are arranged on the plate body 11 along the left-right direction, and each of the louvers 12 is penetrated by a multiple of mounting holes 120, and each of the mounting holes 120 is provided with a multiple of first blades 121, a multiple of second blades 122, and an annular connecting portion 123, one end of the first blade 121 is connected to the inner wall of the mounting hole 120, and the other end is connected to the outer wall of the annular connecting portion 123, one end of the second blade 122 is connected to the inner wall of the annular connecting portion 123, and the other end extends toward the center of the annular connecting portion 123 and is connected; wherein, the multiple first blades 121 are all inclined in the same direction toward one hole surface of the mounting hole 120, and the multiple second blades 122 are all inclined in the same direction toward the other hole surface of the mounting hole 120; the multiple louvers 12 include a multiple of first louvers 12a installed on the left plate body, and a multiple of second louvers 12b installed on the right plate body.

[0042] The first louvers 12a are all inclined toward the left, and the second louvers 12b are all inclined toward the right. An opening 110 is provided on the plate body 11 on the left side of each of the first louvers 12a and on the plate body 11 on the right side of each of the second louvers 12b.

[0043] Specifically, before the louvers 12 are installed, when the airflow is blown out from the opening 110, the airflow is not guided and blown out directly from the opening 110, and its airflow direction does not change. After the louvers 12 are installed, the airflow can be blown out along the extension direction of the louvers 12.

[0044] When the indoor unit of the air conditioner equipped with the wind shield 10 is working, after the airflow blows toward the opening 110, it can flow in opposite directions along the first louver 12a and the second louver 12b, so that the blown airflow will not blow directly to the user. In addition, since the above-mentioned airflow flows in opposite directions, under the action of fluid pressure, the air near the middle of the outer side of the wind shield 10 will enter between the first louver 12a and the second louver 12b in the middle of the wind shield 10, and then flow toward both sides of the wind shield 10, and merge with the cold airflow blown out from the opening 110, thereby increasing the air output. Furthermore, since the cold airflow merges with the indoor air, the temperature of the airflow finally blown out by the air conditioner is relatively mild, not too cold, and the user experience is excellent.

[0045] In addition, since a plurality of mounting holes 120 are provided on the board body 11 , and a first blade 121 and a second blade 122 are provided in the mounting holes 120 , under the action of the first blade 121 and the second blade 122 , the windshield board 10 can also achieve a windless effect.

[0046] First, a first wind dispersion gap 121a is formed between two adjacent first blades 121, and a second wind dispersion gap 122a is formed between two adjacent second blades 122. Since the inclination directions of the plurality of first blades 121 and the plurality of second blades 122 are opposite, the inclination directions of the first wind dispersion gap 121a and the second wind dispersion gap 122a are opposite, and the airflows flowing out through the first wind dispersion gap 121a and the second wind dispersion gap 122a can collide with each other to form turbulence, thereby reducing the feeling of wind blowing out from the front.

[0047] Secondly, since the plurality of first blades 121 are arranged along a circular trajectory, the plurality of second blades 122 are arranged along a circular trajectory, and the first wind dispersion gap 121a and the second wind dispersion gap 122a are both inclined with respect to the axial direction of the mounting hole, the gas flowing out through the inclined first wind dispersion gap 121a and the second wind dispersion gap 122a will change its gas flow direction. In this way, the intensity of the airflow blown out from the front of the wind shield 10 is weakened, thereby improving the windless effect of the airflow. Therefore, when the airflow passes through the wind shield 10 proposed in this patent and blows to the human body, the airflow intensity is weakened, the airflow comfort is higher, and the user can be prevented from suffering from air-conditioning disease.

[0048] Finally, since the windshield 10 proposed in this patent is concentrically provided with a first blade group and a second blade group, and the inclination directions of the two blade groups are opposite, the airflow flowing out through the first wind dispersion gap 121a and the second wind dispersion gap 122a has different rotation directions, so that the first blade group and the second blade group will form two rotating airflows in opposite directions, each rotating airflow can be rotated and dispersed once, and the two rotating airflows can further disrupt the airflow after the intersection to form turbulence and achieve a windless feeling. Therefore, while improving the windless feeling of the airflow outlet of the air conditioner indoor unit, this patent does not need to reduce the opening rate of the windshield 10, that is, it does not need to increase the windshield area of ​​the windshield assembly 10. Therefore, the windshield 10 proposed in this patent can avoid a large loss of the air supply airflow, thereby improving the air supply effect of the air conditioner indoor unit.

[0049] The technical solution of the present invention is to set multiple openings 110 on the plate body 11 and install multiple louvers 12. By tilting the louvers 12 in opposite directions, the airflow blown out from the multiple openings 110 can flow in opposite directions, so that the blown airflow will not blow directly on the user.

[0050] Reference Figure 3In order to strengthen the force of the first blade 121 and the second blade 122 on the annular connection part 123, a plurality of the first blades 121 and a plurality of the second blades 122 are staggeredly distributed along the radial direction of the mounting hole 120. In this way, there are fixed structures on both the inner and outer sides of the annular connection part 123, so that the annular connection part 123 can resist a strong air flow in a circumferential direction, so that the structural strength of the annular connection part 123 can be significantly improved, and the annular connection part 123 can be prevented from breaking.

[0051] Since the curved blades use more material than straight blades, the structural strength of the curved blades can be improved, and the curved blades are not easily deformed, thereby increasing the service life of the curved blades.

[0052] In addition, the wind shield 10 should not have too strong or too weak wind shielding effect. If the wind shielding effect is too strong, the air supply effect will be poor, which will affect the indoor cooling effect (the cold air of the air conditioner will only diffuse around the air conditioner and will not diffuse to all areas of the room).

[0053] For straight blades, the airflow vortex effect finally formed by multiple straight blades is average, so the interaction effect of the airflows blown out by adjacent blades is stronger, which will eventually lead to the average air supply effect of the air conditioner and the average windless effect (it should be noted that here, the windless feeling means that the user feels a smaller wind feeling, not that there is no wind).

[0054] In this embodiment, the blades are arranged in an arc shape, that is: the first blade 121 is bent in the same direction in the circumferential direction of the mounting hole 120 and is arranged in an arc shape; and / or the second blade 122 is bent in the same direction in the circumferential direction of the mounting hole 120 and is arranged in an arc shape. In this way, the arc-shaped blades (the first blade 121 and / or the second blade 122) have a gathering effect on the outflowing airflow, thereby reducing the rotation radius of the rotating airflow. Furthermore, the rotating airflow itself has a better vortex effect, and its air supply distance is farther than that of straight blades. In addition, since the airflow flows out in the form of a vortex, when the airflow blows towards the user, it has a dimension of flowing towards the user, as well as a rotation dimension, so that the user experience effect is excellent. Furthermore, the vortex airflow mixes more evenly with the air, and the airflow felt by the user is also softer.

[0055] Continue to refer to Figure 3 In a preferred embodiment, the wind shield 10 further includes a fixing portion 124 disposed at the center of the annular connecting portion 123 , the inner ends of the second blades 122 are connected to the fixing portion 124 , and the fixing portion 124 is provided with air holes.

[0056] Considering that the inner ends of the plurality of second blades 122 are fixed together, in order to increase the area of ​​the second blades 122 fixedly connected, and thus improve the bonding strength between the plurality of second blades 122, the wind shield 10 further includes a fixing portion 124 provided in the middle of the mounting hole 120, and the inner ends of the second blades 122 are all fixedly connected to the fixing portion 124. Specifically, the fixing portion 124 is circular, and the inner ends of the plurality of second blades 122 are fixed to the peripheral side wall of the fixing portion 124 at intervals. Since the area of ​​the peripheral side wall of the fixing portion 124 is much larger than the area of ​​the inner ends of the second blades 122, the structural strength of the inner ends of the plurality of second blades 122 being fixed to the fixing portion 124 is greater than the structural strength of the inner ends of the plurality of second blades 122 being fixedly connected to each other.

[0057] Continue to refer to Figure 3 In a preferred embodiment, the inclination angle of the first blade 121 and the inclination angle of the second blade 122 are both greater than 0° and less than or equal to 60°.

[0058] Specifically, when α is in the range of (0°, 60°], after the gas flows through the blades (the first blade 121 and the second blade 122), the degree of deflection of the airflow is moderate, so that the airflows flowing out of different blades can achieve better interaction, improve the air mixing effect, and ultimately achieve a windless feeling of the air flow out of the air conditioner indoor unit.

[0059] It should be noted that the windless feeling refers to the moderate strength of the wind flow, which can make the user feel comfortable. (0°, 60°] is the maximum range of the inclination angle when the airflow flowing out of multiple blades can interact well. In another embodiment of the present patent, the range of the blade inclination angle is preferably (0°, 45°], and the windless feeling effect is best when and only when the inclination angle of the blade is 20°.

[0060] Reference Figure 4 In order to increase the air volume of the air conditioner indoor unit and reduce wind resistance, the shutter 12 around the mounting hole 120 is also provided with a plurality of air dispersion holes 125. The air dispersion holes 125 can be configured as circular, elongated, elliptical, etc. Since the circular air dispersion holes 125 are easy to process and shape, in this embodiment, the air dispersion holes 125 are arranged in a circular shape. Since this embodiment is provided with a plurality of circular air dispersion holes 125 while providing blades, this patent can increase the air volume of the air conditioner indoor unit while achieving a windless feeling, reduce wind resistance and noise, and improve the air supply effect of the air conditioner indoor unit. In addition, since the airflow flowing out through the blades can interact with the airflow flowing out through the air dispersion holes, the airflow is mixed to achieve a better windless effect.

[0061] When the crossflow impeller is running, the left and right side walls of the air duct of the hanging machine have a lagging force on the airflow, so the airflow in the middle of the air outlet is larger and smaller on both sides. Figure 5 and Figure 6 In order to reduce the wind resistance in the middle of the wind shield 10, in this embodiment, the opening between two adjacent louvers 12 gradually increases from both ends to the middle. Therefore, when the airflow blown out from the middle flows to both sides, it can drive the airflow on both sides of the air duct to blow out from the opening 110 (after the airflow blows out from the middle opening 110, it blows out to both sides. Since the airflow flowing out of the middle opening 110 has a faster flow rate, the fluid pressure at both ends of the front side of the wind shield 10 is relatively low. Under the effect of the pressure difference, the airflow on the rear side of the wind shield 10 will flow out to the front side). The opening between two adjacent wind shields 10 can be reduced by 5% to 10% from the middle to both sides.

[0062] Continue to refer to Figure 5 and Figure 6 Different from the above embodiment, in this embodiment, the inclination angle of the louver 12 gradually decreases from both ends to the middle. For example, the inclination angle of the louver 12 decreases by 5° to 10° from both sides of the plate body 11 to the middle.

[0063] Reference Figure 6 In the above embodiment, the first louver 12a and / or the second louver 12b can be arranged to extend in a straight line and be inclined. Figure 5 , the first louver 12a and / or the second louver 12b can also be arranged to extend in an arc. For the louver 12 extending in a straight line, the airflow velocity derived therefrom is relatively rapid, the wind loss is relatively serious, and the noise is relatively large. For the louver 12 extending in an arc, when the airflow flows from the opening 110 to the louver 12, it can flow along the arc of the louver 12, the airflow velocity is relatively slow, the wind loss is small, the noise is small, and the back-blowing effect is also better. Of course, in order to prevent the airflow velocity blown out from the opening 110 from being too rapid, the louver 12 can also be arranged in a wavy shape, so that the flow path of the airflow on the louver 12 is lengthened, and the airflow velocity derived from the louver 12 is more moderate.

[0064] In the above embodiment, continue to refer to Figure 5 and Figure 6, the inclination angle of the louver 12 cannot be too large or too small. If the inclination angle of the louver 12 is too large (the inclination angle refers to the angle formed by the louver tilting or bending toward one side from the position when it is perpendicular to the plate body; for curved louvers, the inclination angle refers to the angle between the tangent at the end of the louver and the louver when it is perpendicular to the plate body), for example, the inclination angle is greater than 60°, then the airflow derived from the louver 12 will mainly gather near the plate body 11, and the airflow will mainly circulate around the indoor unit of the air conditioner, which seriously affects the cooling efficiency, and will also form vortices due to the limited space at the air outlet, resulting in high noise. Of course, the inclination angle cannot be too small, for example, the inclination angle is less than 10°, so the airflow back-blowing effect is poor, and the windless effect is greatly reduced. In view of this, in this embodiment, the inclination angles of the first louver 12a and the second louver 12b in the left and right directions are 10° to 60°.

[0065] The indoor unit of the air conditioner has multiple air supply modes. When the crossflow impeller rotates faster, the airflow blows to the louver 12 and is blocked by the wind deflector 10. The air pressure in the air duct is high and the airflow is difficult to be delivered. In this way, on the one hand, the heat exchanger in the indoor unit will frost quickly, seriously affecting the cooling efficiency. On the other hand, the vortex in the air duct is serious and the noise is loud, affecting the user experience. In view of this, in this embodiment, reference is made to Figure 4 The material of the louver 12 is an elastic material. Thus, when the high-pressure airflow blows toward the louver 12, the louver 12 can be elastically deformed, thereby increasing the opening between two adjacent louvers 12, thereby achieving the purpose of pressure relief.

[0066] In addition, in order to make the pressure relief effect of the shutter 12 better, in this embodiment, Figure 5 , the louver 12 is flexibly connected to the plate body 11 (the thickness of the connection L between the louver 12 and the plate body 11 is less than the thickness of the louver 12 itself). In this way, once the louver 12 is subjected to a large airflow thrust, the louver 12 can rotate relative to the plate body 11, thereby expanding the opening. Of course, if the louver 12 is flexibly connected to the plate body 11 and the material of the louver 12 itself is an elastic material, then its pressure relief effect will be better.

[0067] Reference Fig. 9 In order to make the wind shield 10 have a better windless effect, in another preferred embodiment, the louver 12 is provided with a wind dispersing hole 122. In this way, on the one hand, the louver 12 is convenient for relieving the pressure of the airflow in the air duct, and on the other hand, the airflow guided by the wind shield 10 is more dispersed, and the windless effect is better.

[0068] Continue to refer to Fig. 9, since the first louver 12a is tilted to the left and the second louver 12b is tilted to the right, when the airflow is back-blown, the air near the middle of the outer side of the wind shield 10 will enter between the first louver 12a and the second louver 12b in the middle of the wind shield 10, which may cause condensation water to be generated between the first louver 12a and the second louver 12b in the middle of the wind shield 10. In view of this, in this embodiment, a ventilation hole 111 is provided on the plate body 11 corresponding to the first louver 12a on the far right and the second louver 12b on the far left.

[0069] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A windshield installed in the air outlet duct of an indoor unit of an air conditioner, characterized in that: include: A plate body extending in the left-right direction, the plate body comprising a left plate body and a right plate body connected to each other; A plurality of louvers are arranged on the plate body along the left-right direction, each of the louvers is provided with a plurality of mounting holes, each of the mounting holes is provided with a plurality of first blades, a plurality of second blades, and an annular connecting portion, one end of the first blade is connected to the inner wall of the mounting hole, and the other end is connected to the outer wall of the annular connecting portion, one end of the second blade is connected to the inner wall of the annular connecting portion, and the other end is extended toward the center of the annular connecting portion and connected; wherein the plurality of first blades are all inclined in the same direction toward one hole surface of the mounting hole, and the plurality of second blades are all inclined in the same direction toward the other hole surface of the mounting hole; the plurality of louvers include a plurality of first louvers installed on the left plate body, and a plurality of second louvers installed on the right plate body; The first louvers are all inclined toward the left, the second louvers are all inclined toward the right, and an opening is provided on the plate body on the left side of each of the first louvers and on the plate body on the right side of each of the second louvers; The inclination angle of the louvers gradually decreases from the two ends to the middle; or the opening degrees of two adjacent louvers gradually decrease from the middle to the two sides; Ventilation holes are provided on the plate body corresponding to the first louver on the far right and the second louver on the far left.

2. The windshield according to claim 1, characterized in that: The plurality of first blades and the plurality of second blades are staggeredly distributed along the radial direction of the mounting hole.

3. The windshield according to claim 1, characterized in that: The first blades are bent in the same direction in the circumferential direction of the mounting hole and are arranged in an arc shape; and / or the second blades are bent in the same direction in the circumferential direction of the mounting hole and are arranged in an arc shape.

4. The windshield according to claim 1, characterized in that: The wind shield plate also includes a fixing portion arranged at the center of the annular connecting portion, the inner ends of the second blades are connected to the fixing portion, and the fixing portion is provided with a ventilation hole.

5. The windshield according to claim 1, characterized in that: The inclination angle of the first blade and the inclination angle of the second blade are both greater than 0° and less than or equal to 60°.

6. The windshield according to claim 1, characterized in that: The shutters around the installation holes are also provided with a plurality of air dispersion holes.

7. The windshield according to any one of claims 1 to 6, characterized in that: The first louver and / or the second louver are / is arranged to be straight and inclined; or the first louver and / or the second louver are / is arranged to be arc-shaped and inclined.

8. The windshield according to any one of claims 1 to 6, characterized in that: The inclination angles of the first louver and the second louver in the left and right directions are 10° to 60°.

9. The windshield according to any one of claims 1 to 6, characterized in that: The material of the louver is elastic material.

10. The windshield according to any one of claims 1 to 6, characterized in that: The louver is flexibly connected to the plate body.

11. An indoor unit of an air conditioner, comprising an indoor unit main body, characterized in that: It also includes a wind shield as described in any one of claims 1 to 10, wherein the wind shield is installed in the air outlet duct of the indoor unit body.

12. An air conditioner, comprising an air conditioner outdoor unit, characterized in that: It also includes the air conditioner indoor unit as claimed in claim 11, and the air conditioner outdoor unit is connected to the air conditioner indoor unit.

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