Air outlet panel, air outlet assembly and air conditioner outdoor unit

Abstract

The invention discloses an air outlet panel, an air outlet assembly and an air conditioner outdoor unit, the inner side and the outer side of the air outlet panel are defined relative to the flowing direction of airflow, and when the airflow flows, the air inlet side of the air outlet panel is the inner side, and the air outlet side of the air outlet panel is the outer side. When the fan operates to supply air to the air outlet holes of the air outlet panel, air flow firstly passes through the air outlet holes, air flow on the peripheral sides of the air outlet holes passes through the concave area and then is discharged from the mesh enclosure, the air flow flows to the concave area through the air outlet holes, and the sectional area of the concave area is larger than that of the air outlet holes, so that backflow of the air flow is reduced, and the air volume is increased; the concave area communicated with the air outlet hole is arranged at the air outlet end of the air outlet hole, and air flow corresponding to the concave area can convert original local static pressure into dynamic pressure in the area around the air outlet hole, so that the air outlet resistance of the air flow is reduced, the pneumatic noise of the air outlet can be reduced, and the power consumption is reduced; the problems that an existing air outlet panel is large in noise and large in power consumption are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air-conditioning systems, and in particular to an air outlet panel, an air outlet component and an air-conditioning outdoor unit. Background Art

[0002] With increasingly stringent energy conservation and emission reduction requirements, while maintaining overall noise levels, the air volume of outdoor units needs to be further increased. This increase can only be achieved by increasing the diameter of the impeller and air guide ring. Currently, the air volume of outdoor units in the industry has reached a certain bottleneck. Existing air conditioner outdoor units typically have an air guide ring on the panel to guide the airflow. A mesh cover is located at the air outlet of the air guide ring. When air passes through the existing air guide ring, the air velocity is low and the noise is high, which increases the outdoor unit's unnecessary power consumption. Summary of the Invention

[0003] The main purpose of the present invention is to provide an air outlet panel, an air outlet assembly and an air conditioner outdoor unit, aiming to solve the problems of high noise and high power consumption of existing air outlet panels.

[0004] To achieve the above-mentioned purpose, the present invention proposes an air outlet panel, wherein the air outlet panel has an outer side and an inner side arranged relatively to each other, a recessed area is formed on the outer side of the air outlet panel, and air outlet holes are penetrated in a local area of ​​the recessed area, and the air outlet holes are connected to the recessed area to form an air outlet channel.

[0005] Optionally, the air outlet is formed with an annular outer flange protruding from the inner side of the air outlet panel, and the aperture of the annular outer flange is at least partially gradually increased in the inward direction.

[0006] Optionally, the air supply channel includes a flow collecting section, a flow guiding section and a flow expanding section arranged in sequence from the inside to the outside, the flow collecting section and the flow guiding section are formed at the air outlet, and the flow expanding section is formed at the recessed area;

[0007] The aperture of the collecting section is set to be larger than the aperture of the guiding section.

[0008] Optionally, the flow guiding section and the flow collecting section are arranged in an arc transition.

[0009] Optionally, in the direction from inside to outside, the length of the collecting section is A, the length of the guiding section is B, and the length of the expanding section is C, wherein 65 mm ≤ A + B + C ≤ 80 mm.

[0010] Optionally, 10%≤C / (A+B+C)≤20%.

[0011] Optionally, the cross-sectional area of ​​the air outlet is S1, and the cross-sectional area of ​​the recessed area is S2, wherein 20%≤(S2-S1) / S1≤40%.

[0012] Optionally, the recessed area is arranged in a square shape, and the air outlet is arranged in a circular shape, wherein the cross-sectional center of the recessed area coincides with the center of the circular hole.

[0013] The present invention also provides an air outlet component, which includes:

[0014] a housing having a mounting opening;

[0015] an air outlet panel, the air outlet panel being installed at the installation opening; and

[0016] A mesh cover is provided on the outside of the air outlet panel and is arranged corresponding to the recessed area;

[0017] The air outlet panel has an outer side and an inner side that are relatively arranged. A recessed area is formed on the outer side of the air outlet panel. Air outlet holes are provided in a local area of ​​the recessed area. The air outlet holes are connected to the recessed area to form an air supply channel.

[0018] The present invention further provides an air conditioner outdoor unit, the air conditioner outdoor unit comprising an air outlet assembly, the air outlet assembly comprising:

[0019] a housing having a mounting opening;

[0020] an air outlet panel, the air outlet panel being installed at the installation opening; and

[0021] A mesh cover is provided on the outside of the air outlet panel and is arranged corresponding to the recessed area;

[0022] The air outlet panel has an outer side and an inner side that are relatively arranged. A recessed area is formed on the outer side of the air outlet panel. Air outlet holes are provided in a local area of ​​the recessed area. The air outlet holes are connected to the recessed area to form an air supply channel.

[0023] In the technical solution provided by the present invention, when the fan is running and delivering air to the air outlet of the air outlet panel, the airflow first passes through the air outlet, and the airflow located around the air outlet will pass through the recessed area before being discharged from the mesh cover. Since the airflow passes through the air outlet and flows to the recessed area, the cross-sectional area of ​​the recessed area is larger than the cross-sectional area of ​​the air outlet, which reduces the backflow of the airflow and increases the air volume. The airflow of the same flow rate has a higher flow rate at the air outlet, and when the airflow flows to the recessed area, the flow rate will decrease. By providing a recessed area connected to the air outlet at the air outlet end of the air outlet, the airflow corresponding to the recessed area can convert the original local static pressure into dynamic pressure in the area around the air outlet, thereby reducing the airflow resistance of the airflow, reducing the aerodynamic noise of the air outlet, and reducing power consumption, thereby solving the problems of high noise and high power consumption of the existing air outlet panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0025] Figure 1 A three-dimensional schematic diagram of an embodiment of an air outlet panel in an air outlet assembly provided by the present invention;

[0026] Figure 2 for Figure 1 A front view of the air outlet panel;

[0027] Figure 3 for Figure 2 A schematic cross-sectional view of XX;

[0028] Figure 4 for Figure 2 Schematic diagram of the air outlet area and the recessed area of ​​the air outlet panel;

[0029] Figure 5 A front schematic diagram of the air outlet assembly provided by the present invention;

[0030] Figure 6 for Figure 5 Schematic cross-section of YY.

[0031] Description of Figure Numbers:

[0032] Label name Label name 100 Air outlet panel 11 current collecting section 200 Air outlet components 12 diversion section 1a sunken area 13 expansion section 1b air outlet 10 case 101 Outer hem 20 Grille

[0033] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] 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 various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0036] 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 for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] With increasingly stringent energy conservation and emission reduction requirements, while maintaining overall noise levels, the air volume of outdoor units needs to be further increased. This increase can only be achieved by increasing the diameter of the impeller and air guide ring. Currently, the air volume of outdoor units in the industry has reached a certain bottleneck. Existing air conditioner outdoor units typically have an air guide ring on the panel to guide the airflow. A mesh cover is located at the air outlet of the air guide ring. When air passes through the existing air guide ring, the air velocity is low and the noise is high, which increases the outdoor unit's unnecessary power consumption.

[0038] In order to solve the above problems, the present invention provides an air outlet panel. Figure 1 A three-dimensional schematic diagram of an embodiment of an air outlet panel in an air outlet assembly provided by the present invention; Figure 2 for Figure 1 A front view of the air outlet panel; Figure 3 for Figure 2 A schematic cross-sectional view of XX; Figure 4 for Figure 2 Schematic diagram of the air outlet area and the recessed area of ​​the air outlet panel; Figure 5 A front schematic diagram of the air outlet assembly provided by the present invention; Figure 6 for Figure 5 Schematic cross-section of YY.

[0039] See also Figures 1 to 3 The air outlet panel 100 has an outer side and an inner side that are relatively arranged. A recessed area 1a is formed on the outer side of the air outlet panel 100. An air outlet hole 1b is penetrated in a local area of ​​the recessed area 1a. The air outlet hole 1b is connected to the recessed area 1a to form an air supply channel.

[0040] In this embodiment, the inner and outer sides of the air outlet panel 100 are defined relative to the direction of airflow. When airflow is flowing, the side of the air outlet panel 100 where air enters is the inner side, and the side where air exits is the outer side. Therefore, the recessed area 1a is located at the outlet end of the air supply channel through which airflow flows.

[0041] It should be noted that the recessed area 1a can be set as a groove with a regular shape or an irregular groove, and the bottom wall of the groove can be set in a flat surface or a curved surface. The recessed area 1a can of course also be set in other possible shapes, which can be determined according to actual conditions. As long as the air outlet 1b can be connected to the bottom wall of the groove, it is within the scope of protection of the present invention, and the embodiments of this specification do not limit this.

[0042] In this embodiment, the air outlet 1b is provided in a local area of ​​the recessed area 1a, that is, the surface of the remaining area of ​​the recessed area 1a, that is, the surface of the recessed area 1a corresponding to the surrounding side of the air outlet 1b, and the inner wall surface of the air outlet 1b together define the air supply channel, so that the cross-sectional area of ​​the recessed area 1a is necessarily larger than the cross-sectional area of ​​the air outlet 1b.

[0043] In the technical solution provided by the present invention, when the fan is operating and delivering air toward the air outlet 1b of the air outlet panel 100, the airflow first passes through the air outlet 1b. The airflow located around the air outlet 1b then passes through the recessed area 1a before being discharged from the mesh cover 20. Because the airflow passes through the air outlet 1b and flows into the recessed area 1a, the cross-sectional area of ​​the recessed area 1a is larger than that of the air outlet 1b, which reduces backflow and increases the air volume. The flow rate of air with the same flow rate is higher at the air outlet 1b. When the airflow flows into the recessed area 1a, the flow rate decreases. By providing the recessed area 1a at the outlet end of the air outlet 1b and communicating with the air outlet 1b, the airflow corresponding to the recessed area 1a converts the original local static pressure into dynamic pressure in the area around the air outlet 1b, thereby reducing the airflow resistance, the aerodynamic noise at the air outlet, and the power consumption, thereby solving the problems of high noise and high power consumption of the existing air outlet panel 100.

[0044] Furthermore, in the prior art, the cross-sectional area of ​​the air outlet holes 1b on the conventional air outlet panel 100 does not change at the air outlet end, and the airflow has more backflow phenomena, thereby reducing the air volume.

[0045] In this example, see Figure 3The air outlet 1b is configured as a flanged hole, with an annular outer flange 101 protruding from the inner side of the air outlet panel 100. The aperture of the annular outer flange 101 is at least partially gradually increasing in diameter in the inward direction. With this configuration, the opening at the air inlet end of the area corresponding to the air outlet 1b is larger than the opening at the air outlet end. Therefore, when the fan is exhausting air, more airflow can be collected at the air inlet end of the air outlet 1b, concentrating the airflow. In this case, the airflow velocity of the air outlet 1b is higher.

[0046] It should be noted that, in a preferred embodiment, the annular outer flange 101 gradually increases in the inward direction, so that the wind resistance is stable during the flow of the air toward the air outlet end of the air supply channel, and does not fluctuate to affect the stability of the airflow.

[0047] Specifically, see Figure 3 In this embodiment, the air supply channel includes, from inside to outside, a collecting section 11, a guide section 12, and a diffuser section 13. The collecting section 11 and the guide section 12 are formed within the air outlet 1b, while the diffuser section 13 is formed within the recessed area 1a. The diameter of the collecting section 11 is larger than that of the guide section 12. This allows the collecting section 11 to collect more airflow, concentrating it before it flows through the guide section 12 to the diffuser section 13, which has a larger cross-sectional area.

[0048] In this embodiment, a circular arc transition is provided between the flow guide section 12 and the flow collecting section 11. The circular arc transition can change the direction of the airflow more smoothly, reducing wind resistance; the circular arc transition can also avoid the formation of vortices, reduce noise, and make the airflow pass through the channel more evenly, thereby improving the stability and reliability of aerodynamic performance.

[0049] It should be noted that the expansion section 13 is formed in the recessed area 1a, and the length of the expansion section 13 in the inward and outward directions depends on the degree of recess of the recessed area 1a. The size of the cross section of the expansion section 13 depends on the inward and outward upward projection area of ​​the recessed area 1a.

[0050] In this embodiment, in the direction from inside to outside, the length of the collecting section 11 is A, the length of the guide section 12 is B, and the length of the expansion section 13 is C, wherein 65mm≤A+B+C≤80mm. This arrangement not only ensures the pressure resistance of the air outlet panel 100, but also ensures that the possibility of the air outlet panel 100 being torn is avoided during the manufacturing process. Because the air outlet panel 100 is generally a plastic part, it will need to be demolded during the manufacturing process. When the distance between the air supply channel in the inside and outside directions is too large, that is, when A+B+C is greater than 80mm, due to the friction between the plastic part and the mold cavity, stress concentration will be generated on the surface of the plastic part. If there are weak points on the surface or inside of the plastic part (for example, gates, ejector pin marks, etc.), the stress in these areas will exceed the strength of the material, resulting in torn.

[0051] When the distance between the air supply channel in the inward and outward directions is too small, that is, A+B+C is less than 65 mm, the thickness of the air outlet panel 100 is relatively thin. When the air outlet panel 100 is arranged on the outdoor unit of the air conditioner, under low temperature conditions in winter, the condenser is prone to frost or even ice. Then, during the operation of the fan, the air supply volume of the fan will become smaller, and the air volume attenuation of the corresponding air supply duct of the expansion section 13 described in this application is smaller, thereby increasing the pressure resistance of the air outlet panel 100.

[0052] In this embodiment, the flow collecting section 11, the flow guiding section 12, and the flow expanding section 13 also satisfy the following relationship: 10% ≤ C / (A+B+C) ≤ 20%. If the length of the flow expanding section 13 is too large, that is, C / (A+B+C) is greater than 20%, there is a risk of mold release cracking. If the length of the flow expanding section 13 is too small, that is, C / (A+B+C) is less than 10%, the air volume increase is small.

[0053] In this embodiment, the cross-sectional area of ​​the air outlet 1b is S1, and the cross-sectional area of ​​the recessed area 1a is S2. Figure 4 The recessed area 1a is the area of ​​the entire square area, and S2-S1 is the area of ​​the recessed area 1a projected onto the air outlet panel 100 in the inward and outward directions. Here, 20% ≤ (S2-S1) / S1 ≤ 40%. This arrangement ensures the aesthetic appearance of the air outlet panel 100 while effectively increasing air volume. When (S2-S1) / S1 is greater than 40%, the area of ​​the diffuser section is too large, resulting in poor aesthetics and increased manufacturing costs. When (S2-S1) / S1 is less than 20%, the backflow prevention performance of the recessed area 1a is reduced, and the air volume increase is reduced.

[0054] Specifically, see Figure 1 、 Figure 2 and Figure 4In this embodiment, the recessed area 1a is arranged in a square shape, and the air outlet 1b is arranged in a circular shape, wherein the cross-sectional center of the recessed area 1a coincides with the center of the circular hole. In this way, the multiple triangular recessed areas 1a around the circular air outlet 1b can be symmetrical left-right or top-bottom about the vertical center line or horizontal center line of the air outlet 1b. Of course, the recessed area 1a is not limited to the above-mentioned shape. The recessed area 1a can also be arranged as a concentric circle with a diameter larger than the air outlet 1b. Of course, the shapes of the recessed area 1a and the air outlet 1b are not limited to the above-mentioned examples. Technicians in the relevant field may make other changes based on the technical essence of the embodiments of this specification. However, as long as the functions and effects achieved are the same or similar to those of the embodiments of this specification, they should be covered within the scope of protection of the embodiments of this specification.

[0055] The present invention also provides an air outlet assembly 200, see Figures 5 and 6 The air outlet component 200 includes a shell 10, an air outlet panel 100 and a mesh cover 20, the shell 10 has a mounting port; the air outlet panel 100 is installed at the mounting port; the mesh cover 20 is arranged on the outside of the air outlet panel 100 and is arranged corresponding to the recessed area 1a. The air outlet component 200 also includes a fan, etc. Since the air outlet component 200 includes the air outlet panel 100, the specific structure of the air outlet panel 100 refers to the above embodiment. Since the air outlet panel 100 of the air outlet component 200 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0056] In this embodiment, the air outlet component 200 can be a fan, a heater, an air conditioner or other air outlet appliance, and of course can also be a heat dissipation device, etc., which is not limited in this embodiment of the present specification.

[0057] In this embodiment, when the outer contour of the mesh cover 20 is square, the four corners of the mesh cover 20 also have air outlet grilles arranged opposite to the expansion section 13 for air outlet. The original local static pressure is converted into dynamic pressure, the air flow outlet resistance becomes smaller, and the aerodynamic noise of the air outlet can be reduced by about 1dB.

[0058] The present invention also provides an air-conditioning outdoor unit, which includes the above-mentioned air outlet component 200, and the air-conditioning outdoor unit also includes a fan, etc. Since the air-conditioning outdoor unit includes the air outlet component 200, the specific structure of the air outlet component 200 refers to the above-mentioned embodiment. Since the air outlet component 200 of this air-conditioning outdoor unit adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0059] 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 transformations made by using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air outlet panel, characterized in that: The air outlet panel has an outer side and an inner side which are arranged opposite to each other. A recessed area is formed on the outer side of the air outlet panel. Air outlet holes are penetrated in a local area of ​​the recessed area. The air outlet holes are connected with the recessed area to form an air supply channel.

2. The air outlet panel according to claim 1, characterized in that: The air outlet hole is formed with an annular outer flange protruding from the inner side of the air outlet panel, and the aperture of the annular outer flange is at least partially gradually increased in the inward direction.

3. The air outlet panel according to claim 1, characterized in that: The air supply channel includes a flow collecting section, a flow guiding section and a flow expanding section which are arranged in sequence from the inside to the outside, the flow collecting section and the flow guiding section are formed at the air outlet, and the flow expanding section is formed at the concave area; The aperture of the current collecting section is set to be larger than the aperture of the flow guiding section.

4. The air outlet panel according to claim 3, characterized in that: The flow guide section and the flow collecting section are arranged in an arc transition.

5. The air outlet panel according to claim 3, characterized in that: In the direction from inside to outside, the length of the collecting section is A, the length of the guiding section is B, and the length of the expanding section is C, wherein 65 mm ≤ A + B + C ≤ 80 mm.

6. The air outlet panel according to claim 5, characterized in that: 10%≤C / (A+B+C)≤20%.

7. The air outlet panel according to claim 1, characterized in that: The cross-sectional area of ​​the air outlet is S1, and the cross-sectional area of ​​the recessed area is S2, wherein 20%≤(S2-S1) / S1≤40%.

8. The air outlet panel according to claim 1, characterized in that: The recessed area is arranged in a square shape, and the air outlet hole is arranged in a circular shape, wherein the cross-sectional center of the recessed area coincides with the center of the circular hole.

9. An air outlet component, characterized in that: include: A housing having a mounting opening; The air outlet panel according to any one of claims 1 to 8, wherein the air outlet panel is installed at the installation opening; as well as, A mesh cover is arranged on the outside of the air outlet panel and is corresponding to the recessed area.

10. An air conditioner outdoor unit, characterized in that: The air outlet assembly as claimed in claim 9.

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