Wind shield, air conditioner indoor unit and air conditioner

Abstract

The invention discloses a wind shield, an air conditioner indoor unit and an air conditioner, the wind shield comprises a plate body, the plate body is provided with an inner plate surface and an outer plate surface, the outer plate surface is provided with a plurality of air outlet areas arranged at intervals in the length direction of the outer plate surface, each air outlet area comprises a plurality of air dispersing holes penetrating through the plate body, and the air dispersing holes are communicated with the inner plate surface and the outer plate surface. The plurality of air dispersing holes are annularly distributed at intervals; and the forming direction of the outer ports of the air dispersing holes in each air outlet area is opposite to the middle part of the air outlet area. According to the technical scheme, the multiple air scattering holes are annularly formed in the plate body at intervals, the forming directions of the outer ports of the multiple air scattering holes are all opposite to the middle of the air outlet area, when air flow blows to the inner plate face, the air scattering holes in each air outlet area can blow the air flow to the periphery of the air outlet area, and therefore the air flow can be blown to the periphery of the air outlet area; the blown air flows are different in direction and cannot directly blow a user, and the wind-free effect is good.

Description

[0001] The present invention is a divisional application of a patent application with an application date of September 12, 2017, an application number of 201710822111.4, and an invention name of “Wind shield, air conditioner indoor unit and air conditioner”. Technical Field

[0002] 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

[0003] 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

[0004] 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.

[0005] To achieve the above-mentioned purpose, the wind shield proposed in the present invention is used to be installed at the air outlet of the indoor unit of the air conditioner, and the wind shield includes a plate body, and the plate body has an inner plate surface and an outer plate surface, and the outer plate surface is provided with a plurality of air outlet areas arranged at intervals in its length direction, and each of the air outlet areas includes a plurality of air dispersion holes penetrating the plate body, and the plurality of air dispersion holes are arranged at intervals along a ring; wherein the opening direction of the outer port of the air dispersion hole in each of the air outlet areas is arranged away from the middle of the air outlet area.

[0006] Preferably, the plate body is also provided with noise reduction holes.

[0007] Preferably, the noise reduction hole is arranged to be gradually tapered from the inside to the outside.

[0008] Preferably, both ends of the noise reduction hole in the penetration direction thereof are arranged to be tapered toward the middle.

[0009] Preferably, the inner hole surface of the noise reduction hole is arranged in the shape of a regular triangle, a regular quadrilateral or a regular hexagon, and the edges of any two adjacent inner hole surfaces of the noise reduction hole are connected.

[0010] Preferably, the inner plate surface of the plate body is arranged in an arc shape, so that the thickness of the plate body gradually increases from both ends to the middle in the length direction thereof.

[0011] Preferably, the wind deflector is made of elastic material.

[0012] Preferably, the air dispersion holes are arranged in a curved and extending direction.

[0013] Preferably, the inner surface of the wind shield is rough.

[0014] Preferably, the inner wall of the air diffusion hole is concave-convex.

[0015] Preferably, the number of the air dispersion holes in each of the air outlet areas is 4 to 12.

[0016] Preferably, the noise reduction hole is a circular hole with a diameter of 0.4 mm to 1 mm.

[0017] Preferably, the air dispersion holes are circular holes with a diameter of 10 mm to 30 mm.

[0018] The present invention also provides an indoor unit of an air conditioner, comprising an indoor unit main body and a wind shield, wherein the indoor unit main body has an air outlet, and the wind shield comprises a plate body, wherein the plate body has an inner plate surface and an outer plate surface, and the outer plate surface is provided with a plurality of air outlet areas arranged at intervals in its length direction, each of the air outlet areas comprises a plurality of air dispersion holes penetrating the plate body, and the plurality of air dispersion holes are arranged at intervals along a ring shape; wherein the opening direction of the outer port of the air dispersion hole in each of the air outlet areas is arranged away from the middle of the air outlet area; and the wind shield is installed at the air outlet.

[0019] 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, the indoor unit main body having an air outlet, the wind shield comprising a plate body, the plate body having an inner plate surface and an outer plate surface, the outer plate surface being provided with a plurality of air outlet areas arranged at intervals in its length direction, each of the air outlet areas comprising a plurality of air dispersion holes penetrating the plate body, the plurality of air dispersion holes being arranged at intervals along a ring shape; wherein the opening direction of the outer port of the air dispersion hole in each of the air outlet areas is arranged away from the middle of the air outlet area; the wind shield is installed at the air outlet; the air conditioner outdoor unit is connected to the air conditioner indoor unit.

[0020] The technical solution of the present invention is to provide a plurality of air dispersion holes arranged along a ring-shaped interval on the plate body, and the opening directions of the outer ports of the plurality of air dispersion holes are all arranged to face away from the middle of the air outlet area. When the airflow blows toward the inner plate surface, the air dispersion holes in each air outlet area can blow the airflow to the surroundings of the air outlet area. The directions of the airflows are different and will not blow directly on the user, and the wind-free effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 It is a structural schematic diagram of a first embodiment of a windshield of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a second embodiment of a windshield according to the present invention;

[0024] Figure 3 It is a structural schematic diagram of a third embodiment of a windshield according to the present invention;

[0025] Figure 4 It is a structural schematic diagram of a fourth embodiment of a windshield according to the present invention;

[0026] Figure 5 It is a structural schematic diagram of a fifth embodiment of a windshield according to the present invention;

[0027] Figure 6 for Figure 1 Sectional view of the middle windshield along the MM line;

[0028] Figure 7 for Figure 5 Sectional view of the middle windshield along line NN;

[0029] Figure 8 This is a schematic diagram of the arrangement structure of the air diffusion holes on the inner surface of the wind shield.

[0030] Description of Figure Numbers:

[0031] Label name Label name 10 Wind deflector 11 Board body 11a Inner panel 11b outer deck 12 Air vents 13 Noise reduction hole X Air outlet area

[0032] 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

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Figures 1 to 7 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.

[0037] The present invention provides a windshield, an air conditioner indoor unit equipped with the windshield, 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 wall mounted unit will be specifically described in detail below.

[0038] In the embodiment of the present invention, Figure 1 and Figure 6 As shown, the wind shield 10 includes a plate body 11, the plate body 11 has an inner plate surface 11a and an outer plate surface 11b, and the outer plate surface 11b is provided with a plurality of air outlet areas X arranged at intervals in its length direction, each of the air outlet areas X includes a plurality of air diffusion holes 12 penetrating the plate body 11, and the plurality of air diffusion holes 12 are arranged at intervals along a ring; wherein, the opening direction of the outer port of the air diffusion hole 12 in each of the air outlet areas X is arranged away from the middle of the air outlet area X.

[0039] Specifically, the shape of each air outlet area X can be arranged in a triangle (such as Figure 2 ), or they can be arranged in a square shape (such as Figure 3 ), or they can be arranged in a circular pattern (such as Figure 4 ), can also be arranged in an ellipse, or can also be arranged in a polygon. The shape of the air outlet area X can be regular or irregular.

[0040] In each air outlet area X, the number of the air diffusion holes 12 can be 3, 4, 5, 6, 8, 12, etc., or even more. It should be noted that the air diffusion holes 12 are arranged in a ring-shaped interval. For three air diffusion holes 12, it is equivalent to taking three points on a circle, or it is equivalent to taking three vertices on a triangle (such as Figure 2 ).

[0041] For the air dispersing holes 12, preferably, the shape is a circular hole. Only one row of air outlet areas X can be arranged on the plate body 11, or multiple rows of air outlet areas X can be arranged. For the embodiment in which only one row of air outlet areas X is arranged, the aperture of the air dispersing holes 12 is relatively large, for example, its diameter is 10mm to 30mm. For the embodiment in which multiple rows of air outlet areas X are arranged, the aperture of the air dispersing holes 12 can be made small, for example, between 5mm and 10mm, or even smaller, for example, 2mm to 5mm.

[0042] The air diffusion holes 12 may be provided in a variety of ways, for example, in a straight line, in a curve, or in a bend. For the embodiment in which the air diffusion holes 12 are provided in a straight line, the direction in which the air diffusion holes 12 are provided is inclined to extend from the inner plate surface 11a of the plate body 11 to the outer plate surface 11b. For the embodiment in which the air diffusion holes 12 are provided in a curve or in a bend, it is only necessary that the outer end of the air diffusion holes 12 is provided facing away from the middle of the air outlet area X.

[0043] In addition, the cross-section of the air diffusion holes 12 may be in a square, circular, triangular or other shapes.

[0044] When the airflow blows toward the inner plate surface 11a of the wind shield 10, on the one hand, the airflow is guided to the periphery of the air outlet area X by the air dispersion holes 12. On the other hand, part of the airflow blown out of two adjacent air outlet areas X can blow against each other, and the airflow can be dispersed after the blowing to form turbulence.

[0045] The technical solution of the present invention is to set a plurality of air dispersion holes 12 arranged along a ring-shaped interval on the board body 11, and the opening directions of the outer ports of the plurality of air dispersion holes 12 are all set away from the middle of the air outlet area X. When the airflow blows toward the inner board surface 11a, the air dispersion holes 12 in each air outlet area X can blow the airflow to the surroundings of the air outlet area X. The directions of the airflows are different and will not blow directly onto the user, and the windless effect is better.

[0046] In the above embodiment, when the area without the air diffusion holes 12 is impacted by the airflow, the airflow will directly impact the plate body 11, which will generate a lot of noise. Figure 5In this embodiment, the board body 11 is also provided with noise reduction holes 13, which are arranged throughout the board body 11. The effective air outlet area of ​​the air outlet zone X is limited. After the noise reduction holes 13 are provided, on the one hand, the noise reduction holes 13 can absorb part of the noise; on the other hand, the airflow can also flow out through the noise reduction holes 13, thereby reducing the air pressure in the air outlet duct; on the other hand, the provision of the noise reduction holes 13 increases the opening area of ​​the inner board surface 11a, and reduces the impact of the airflow on the inner surface of the board body 11.

[0047] Further, continue to refer to Figure 5 , considering that even if the board body 11 is provided with air diffusion holes 12 and noise reduction holes 13, the parts between the air diffusion holes 12 and the noise reduction holes 13, and between the noise reduction holes 13 and the noise reduction holes 13, still produce a large resistance to the airflow, thereby generating a large noise. In order to make the noise reduction effect of the noise reduction holes 13 better, in the present embodiment, the noise reduction holes 13 are arranged to be gradually reduced from the inside to the outside, so that the direct contact area between the inner plate surface 11a of the board body 11 and the airflow can be further reduced. For the noise reduction hole 13, its diameter should not be too large, otherwise, the noise reduction effect is not good, but its diameter should not be too small, otherwise, its air outlet effect is poor. In the present embodiment, the noise reduction hole 13 is a circular hole with a diameter of 0.4mm to 1mm.

[0048] Based on the previous embodiment, refer to Figure 8 ( Figure 8 In order to facilitate the explanation of the arrangement of the noise reduction holes, the air dispersion holes are hidden). In order to further reduce the resistance of the inner panel surface 11a to the airflow, in this embodiment, the inner hole surface of the noise reduction hole 13 is arranged in an equilateral triangle, a regular quadrilateral or a regular hexagon, and the edges of any two adjacent inner hole surfaces of the noise reduction are connected. For an equilateral triangle, since the angle between its two adjacent sides is 60°, six equilateral triangles can be seamlessly spliced. For a square, since the angle between its two adjacent sides is 90°, four squares can be seamlessly spliced. For a regular hexagon, since the angle between its two adjacent sides is 120°, three regular hexagons can be seamlessly spliced. In this way, the resistance of the inner panel surface 11a to the airflow can be reduced to the greatest extent, thereby reducing the noise to a minimum.

[0049] In the above embodiment, although the noise reduction hole 13 is gradually reduced from the inside to the outside, it can reduce the resistance of the inner plate surface 11a to the airflow. However, at the same time, the airflow blown out of the noise reduction hole 13 is relatively fast (with a faster flow rate). In view of this, referring to Figure 5 and Figure 7Different from the above-mentioned embodiment, in this embodiment, the two ends of the noise reduction hole 13 in the direction of penetration are gradually narrowed toward the middle. That is, in the process of airflow flowing from the inner hole surface of the noise reduction hole 13 to the outer hole surface, since the inner hole surface of the noise reduction hole 13 extends toward the center of the noise reduction hole 13 along the penetration direction, the noise reduction hole 13 has a gathering effect on the airflow, so the airflow will accelerate in this process. However, since the noise reduction hole 13 is expanded when it extends toward the outer hole surface of the noise reduction hole 13 along the penetration direction, it has a buffering effect on the flow rate of the airflow. Finally, the flow rate of the airflow flowing out of the noise reduction hole 13 is also relatively low.

[0050] When the indoor unit of the air conditioner is blowing air, the air flow velocity in the middle of the air outlet is the largest, especially for the indoor unit of the wall-mounted air conditioner, whose air outlet is arranged in a strip shape, and the air flow velocity in the middle of the air outlet is significantly greater than the flow velocity at both ends of the air outlet. Figure 6 In order to make the air outlet of the indoor unit of the air conditioner equipped with the wind shield 10 more uniform, in this embodiment, the inner plate surface 11a of the plate body 11 is arranged in an arc shape, and the thickness of the plate body 11 gradually increases from the two ends in its length direction to the middle.

[0051] Furthermore, when the air from the indoor unit of the air conditioner blows to the inner plate surface 11a of the wind shield 10, part of the air will flow toward the two ends of the wind shield 10. Therefore, the split air can flow out from both ends of the wind shield 10, and the airflow from the entire wind shield 10 is more uniform.

[0052] In addition, the arc-shaped setting of the inner panel surface 11a can also reduce the resistance of the airflow impacting the inner panel surface 11a. This is because after the inner panel surface 11a is arc-shaped, the impact direction of the airflow is set at an angle with the inner panel surface 11a (before the arc-shaped setting, the angle between the impact direction of the airflow and the inner panel surface 11a is 90°), thereby facilitating the airflow to flow along the inner panel surface 11a.

[0053] Due to the obstruction of the wind shield 10, the air pressure in the air outlet duct is relatively high, especially when the user increases the air supply power of the air conditioner, the air pressure in the air outlet duct is even higher, and the noise will also increase. In this embodiment, in order to alleviate the problem of excessive air pressure in the air outlet duct, in this embodiment, the material of the wind shield 10 is an elastic material. That is, when the air pressure in the air outlet duct is relatively high, the air flow will generate pressure on the hole walls of the air dispersion holes 12 and the noise reduction holes 13 when passing through the air dispersion holes 12 and the noise reduction holes 13, and the air dispersion holes 12 and the noise reduction holes 13 can be appropriately expanded to achieve the purpose of pressure relief. When the air pressure in the air outlet duct decreases, the air dispersion holes 12 and the noise reduction holes 13 return to their original state.

[0054] In a preferred embodiment, the opening direction of the air diffusion hole 12 is curved and extended. In this way, when air flows through the inner wall of the air diffusion hole 12, on the one hand, the contact area between the airflow and the inner wall of the air diffusion hole 12 is increased, and the resistance encountered by the airflow passing through the air diffusion hole 12 becomes larger, thereby reducing the flow rate; on the other hand, the length of the air diffusion hole 12 is increased, and the action time between the airflow and the inner wall of the air diffusion hole 12 is prolonged, and the flow rate of the airflow flowing out of the air diffusion hole 12 will also be reduced; on the other hand, the direction of the airflow in the air diffusion hole 12 is changed, and the kinetic energy of the airflow will also be reduced.

[0055] Different from the above embodiment, in order to increase the interaction area between the airflow and the inner wall of the air diffusion hole 12, the inner wall surface of the air diffusion hole 12 can also be configured to be concave and convex.

[0056] In another preferred embodiment, the inner surface 11a of the wind shield 10 is roughened.

[0057] For the embodiment in which the inner panel surface 11a of the windshield 10 is set as a plane, when the airflow directly blows the inner panel surface 11a, most of the airflow is rebounded. In the air outlet duct, the rebounded airflow intersects with the airflow blowing toward the inner panel surface 11a, thereby generating a large noise. After the inner panel surface 11a of the windshield 10 is set to be rough, the rebound rate of the airflow is reduced after the airflow blows toward the inner panel surface 11a of the windshield 10. In addition, the rough setting of the inner panel surface 11a is equivalent to increasing the contact area between it and the airflow, which also reduces the impact force of the airflow. Furthermore, after the airflow hits the rough inner panel surface 11a, it is convenient for the airflow to flow along the inner panel surface 11a to the air dispersion hole 12 and the noise reduction hole 13.

[0058] 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 at the air outlet of an indoor unit of an air conditioner, the windshield comprising a plate body, the plate body having an inner plate surface and an outer plate surface, characterized in that: The outer plate surface is provided with a plurality of air outlet areas arranged at intervals in the length direction thereof, each of the air outlet areas comprises a plurality of air dispersion holes penetrating the plate body, and the plurality of air dispersion holes are arranged at intervals along a ring shape; wherein the opening direction of the outer port of the air dispersion hole in each air outlet area is arranged away from the middle of the air outlet area; The plate body is also provided with noise reduction holes along the thickness direction of the plate body.

2. The windshield according to claim 1, characterized in that: The noise reduction hole is arranged to be gradually reduced from the inside to the outside.

3. The windshield according to claim 1, characterized in that: The two ends of the noise reduction hole in the penetrating direction thereof are arranged to be gradually tapered toward the middle.

4. The windshield according to claim 1, characterized in that: The inner hole surface of the noise reduction hole is arranged in the shape of a regular triangle, a regular quadrilateral or a regular hexagon, and the edges of any two adjacent inner hole surfaces of the noise reduction hole are connected.

5. The windshield according to claim 2, 3 or 4, characterized in that: The inner plate surface of the plate body is arranged in an arc shape, so that the thickness of the plate body gradually increases from both ends to the middle in the length direction.

6. The windshield according to claim 5, characterized in that: The material of the windshield is elastic material.

7. The windshield according to claim 5, characterized in that: The opening direction of the air dispersion holes is curved and extended.

8. The windshield according to claim 5, characterized in that: The inner plate surface of the wind shield is rough.

9. The windshield according to claim 5, characterized in that: The inner wall of the air dispersion hole is arranged in a concave-convex manner.

10. The windshield according to claim 1, characterized in that: The number of the air dispersion holes in each of the air outlet areas is 4 to 12.

11. The windshield according to claim 1, characterized in that: The noise reduction hole is a circular hole with a diameter of 0.4 mm to 1 mm.

12. The windshield according to claim 1, characterized in that: The air dispersion holes are circular holes with a diameter of 10 mm to 30 mm.

13. An indoor unit of an air conditioner, comprising an indoor unit body, wherein the indoor unit body has an air outlet, wherein: It also includes a wind shield as described in any one of claims 1 to 12, wherein the wind shield is installed at the air outlet.

14. An air conditioner, comprising an air conditioner outdoor unit, characterized in that: It also includes the air conditioner indoor unit as claimed in claim 13, and the air conditioner outdoor unit is connected to the air conditioner indoor unit.

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