Air outlet mesh enclosure, air conditioner outdoor unit and air conditioner

Abstract

The utility model discloses an air outlet mesh enclosure, an air conditioner outdoor unit and an air conditioner, and relates to the technical field of air conditioners, the air outlet mesh enclosure comprises a grating and an outer frame, the outer frame is arranged on the outer side of the grating, and at least the tail end of the outer frame in the air outlet direction of the air outlet mesh enclosure is arranged in a flaring mode. According to the technical scheme provided by the utility model, the wind resistance and noise of the air outlet mesh enclosure can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an air outlet grille, an outdoor air conditioner unit, and an air conditioner. Background Technology

[0002] Air outlet grilles are typically installed at the air outlet of an outdoor air conditioning unit, serving both airflow rectification and safety protection purposes. Because the airflow from the outdoor unit's axial fan has a strong centrifugal effect, the grille obstructs the airflow as it passes through, increasing air resistance and consequently increasing fan noise and power consumption. Therefore, it is essential to reduce the air resistance and noise of the air outlet grille. Utility Model Content

[0003] The main purpose of this utility model is to propose an air outlet grille, an outdoor air conditioning unit, and an air conditioner, which aims to reduce the wind resistance and noise of the air outlet grille.

[0004] To achieve the above objectives, the present invention provides an air outlet mesh cover, comprising:

[0005] Grille; and

[0006] The outer frame is located on the outside of the grille, and at least the outer frame is flared at the end of the air outlet mesh in the air outlet direction.

[0007] In one embodiment, the outer frame is flared outwards in the air outlet direction.

[0008] In one embodiment, the inner surface of the flared opening is curved.

[0009] In one embodiment, the inner side of the outer frame includes a draft section and a flared section connected in the air outlet direction, so that the outer frame is flared at the end of the air outlet mesh in the air outlet direction.

[0010] In one embodiment, the draft section is configured as a straight section, and the flared section is configured as a curved section.

[0011] In one embodiment, the straight section is arranged with a constant diameter or a gradually tapering diameter in the air outlet direction.

[0012] In one embodiment, the grille includes a plurality of radial ribs, which are arranged at circumferential intervals along the outer frame, and the radial ribs are wing-shaped.

[0013] In one embodiment, the connecting line between the draft section and the flared section is set to correspond to the parting line of the radial rib.

[0014] This utility model also proposes an outdoor unit for an air conditioner, including a fan and the aforementioned air outlet cover, wherein the air outlet cover is disposed in the air outlet direction of the fan.

[0015] In one embodiment, the impeller radius of the wind turbine is R, and the inner side of the flared opening is arc-shaped with a radius of R1, where 0.1 ≤ R1 / R ≤ 0.14.

[0016] This utility model also proposes an air conditioner, including the above-mentioned outdoor unit.

[0017] The technical solution of this utility model involves setting an outer frame on the outside of the grille, and making the outer frame flared at least at the end of the air outlet mesh in the air outlet direction. It can be understood that the flared opening can guide the airflow to diffuse outward quickly, thereby causing the vortex area generated by the airflow to move away from the air conditioner outdoor unit. This reduces wind resistance, increases the air volume at the same speed, and reduces the power consumption at the same air volume, thus improving heat exchange performance and fan efficiency. In addition, since the flared opening can guide the airflow to diffuse outward quickly, the vortex position will be far away from the air outlet, so the vortex noise is also reduced accordingly. Therefore, it can be seen that the technical solution of this invention can reduce the wind resistance and noise of the air outlet mesh. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A first-view structural schematic diagram of the first embodiment of the air outlet mesh cover provided by this utility model;

[0020] Figure 2 for Figure 1 A structural schematic diagram of the provided air outlet grille from a second perspective;

[0021] Figure 3 for Figure 1 A cross-sectional view of the provided air outlet grille;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 A first-view structural schematic diagram of the second embodiment of the air outlet mesh cover provided by this utility model;

[0024] Figure 6 for Figure 5 A magnified view of a section at point B in the middle;

[0025] Figure 7for Figure 5 The provided cross-sectional structural diagram of the air outlet grille

[0026] Figure 8 for Figure 7 A magnified view of a section at point C.

[0027] Explanation of icon numbers:

[0028] 10. Air outlet grille; 100. Grille; 110. Radial ribs; 111. Parting line; 200. Outer frame; 210. Draft section; 220. Flared section.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] Air outlet grilles are typically installed at the air outlet of an outdoor air conditioning unit, serving both airflow rectification and safety protection purposes. Because the airflow from the outdoor unit's axial fan has a strong centrifugal effect, the grille obstructs the airflow as it passes through, increasing air resistance and consequently increasing fan noise and power consumption.

[0034] To solve this problem, this utility model proposes an air outlet mesh cover 10.

[0035] Please see Figures 1 to 4 In one embodiment of the present invention, the air outlet cover includes a grille 100 and an outer frame 200. The outer frame 200 is disposed on the outside of the grille 100, and at least the outer frame 200 is flared at the end of the air outlet cover 10 in the air outlet direction.

[0036] The technical solution of this utility model involves setting an outer frame 200 on the outside of the grille 100, and making the outer frame 200 flared at least at the end of the air outlet mesh cover 10 in the air outlet direction. It can be understood that the flared opening can guide the airflow to spread outward quickly, so that the vortex area generated by the airflow will be far away from the air conditioner outdoor unit. Therefore, the wind resistance is reduced, the air volume at the same speed is increased, and the power consumption at the same air volume is reduced, thereby improving the heat exchange performance and fan efficiency. In addition, since the flared opening can guide the airflow to spread outward quickly, the vortex position will be far away from the air outlet, so the vortex noise is also reduced accordingly. It can be seen that the technical solution of this utility model can reduce the wind resistance and noise of the air outlet mesh cover.

[0037] It should be noted that the flaring refers to the gradual increase in the cross-sectional area of ​​the outer frame 200 in the air outlet direction of the air outlet mesh cover 10, so that the inner circumference of the outer frame 200 is in a state of outward expansion.

[0038] Optionally, in one embodiment, the outer frame 200 is flared outwards in the air outlet direction. This means that, with the same axial height, flaring the outer frame 200 in the air outlet direction further guides the airflow to diffuse rapidly outwards, keeping the generated vortex area away from the outdoor unit. This reduces flow resistance, increases the airflow at the same rotational speed, and further reduces power consumption at the same airflow, thus improving heat exchange performance and fan efficiency. Furthermore, the flared design further guides the airflow to diffuse rapidly outwards, further reducing vortex noise by moving the vortex position further away from the air outlet. Of course, this solution is not limited to this; in other embodiments, only the end of the outer frame 200 in the air outlet direction may be flared.

[0039] Furthermore, in this embodiment, the inner surface of the flare is arc-shaped. Due to its unique shape, the arc-shaped flare can more effectively guide the airflow direction. The arc design allows for a smoother transition of airflow at the flare, reducing airflow turbulence and energy loss, thus enabling the airflow to be more evenly distributed to the desired area. This further reduces airflow resistance, increases the airflow volume at the same rotational speed, and further reduces power consumption at the same airflow volume, thereby improving heat exchange performance and fan efficiency. In addition, because the arc surface can effectively guide the airflow to diffuse rapidly outward, the vortex position will be further away from the air outlet, further reducing vortex noise. Secondly, the arc-shaped flare optimizes the airflow path, reducing energy loss during the transition process, thereby improving the overall system efficiency. This means that with the same energy consumption, the air outlet grille 10 can provide a stronger and more stable airflow output. Of course, this solution is not limited to this; in other embodiments, the inner surface of the flare can also be a straight plane.

[0040] Optionally, the air outlet mesh cover 10 is integrally injection molded. This integral injection molding process enables continuous, high-speed injection molding because the injection, cooling, and demolding processes are performed continuously, eliminating the need for intermediate conversion and adjustment time, and reducing energy consumption. This avoids the energy waste caused by process conversions in traditional processes, thus significantly shortening the production cycle of the air outlet mesh cover 10. Furthermore, automated production lines and efficient mold design enable the integral injection molding process to greatly improve production efficiency, meeting the needs of large-scale production. Secondly, the integral injection molding process allows for precise control and adjustment, ensuring consistent dimensions and quality for each air outlet mesh cover 10, improving the product yield. During injection molding, parameters such as temperature, pressure, and speed can be precisely controlled, reducing the possibility of product defects such as bubbles, shrinkage, and deformation, which helps improve the product yield. Furthermore, since the entire injection molding process is completed using a single injection molding machine, compared to traditional injection molding processes, the one-piece injection molding process occupies less space, saving production space. This allows companies to arrange more production equipment within a limited area, improving space utilization. Of course, this solution is not limited to this; in other embodiments, the exhaust grille 10 can also be bonded or welded.

[0041] Reference Figures 5 to 8Optionally, in the second embodiment of this solution, the inner side of the outer frame 200 includes a draft section 210 and a flared section 220 connected in the air outlet direction, so that the outer frame 200 is flared at the end of the air outlet mesh cover 10 in the air outlet direction. It can be understood that the air outlet mesh cover 10 is integrally injection molded. If the inner side of the outer frame 200 is entirely arc-shaped, there will be some areas of the air outlet mesh cover 10 that interfere with the mold during the demolding process, making demolding difficult. This solution divides the inner side of the outer frame 200 into a draft section 210 and a flared section 220 connected in the air outlet direction. During injection molding, the mold includes a female mold and a male mold. One of the female mold and the male mold is set corresponding to the draft section 210, and the other is set corresponding to the flared section 220. The demolding directions of the female mold and the male mold are opposite, which is beneficial to the demolding of the molded air outlet mesh cover 10.

[0042] Furthermore, the draft section 210 is configured as a straight section, and the flared section 220 is configured as an arc section. This allows for the use of a one-piece molding process to produce the air outlet grille 10, improving production efficiency. Simultaneously, the arc section can more effectively guide the airflow to diffuse rapidly outwards, thus keeping the vortex area generated by airflow accumulation away from the outdoor unit of the air conditioner. This reduces wind resistance, increases the airflow at the same rotational speed, and reduces power consumption at the same airflow, thereby improving heat exchange performance and fan efficiency. In addition, since the flare guides the airflow to diffuse rapidly outwards, the vortex position will be far from the air outlet, thus reducing vortex noise. Of course, this solution is not limited to this; in other embodiments, the draft section 210 can also be configured as an arc section with a certain draft angle, and the flared section 220 can be configured as an arc section.

[0043] The straight section is either of equal diameter or tapered in the air outlet direction, which facilitates mold demolding.

[0044] It should be noted that when the straight section is set to gradually narrow in the air outlet direction, the straight section should also be understood as a straight section with a certain draft angle.

[0045] Furthermore, in one embodiment of this solution, the grille 100 includes a plurality of radial ribs 110, which are arranged at circumferential intervals along the outer frame 200. The radial ribs 110 are airfoil-shaped. It can be understood that the airfoil-shaped radial ribs 110 can enhance airflow control capabilities, enabling more effective control of the direction and intensity of airflow. By adjusting the angle and curvature of the airfoil grille 100, precise guidance of airflow can be achieved, allowing the airflow to be distributed to all corners according to a predetermined path and speed. Moreover, the airfoil-shaped radial ribs 110 can optimize airflow distribution, producing a smoother airflow transition and reducing turbulence and eddies at the grille 100, thereby further reducing the wind resistance of the exhaust hood 10. Secondly, the airfoil-shaped radial ribs 110 can also improve structural strength and stability, more effectively resisting wind pressure and airflow impact, ensuring that the grille 100 maintains stable performance during long-term operation. More importantly, the radial stiffeners 110 of the airfoil have a good airflow guiding effect. By optimizing the airflow path and reducing airflow turbulence, they reduce flow resistance, thereby helping to reduce the noise generated during the operation of the air conditioning system.

[0046] In one embodiment, the connection line between the draft section 210 and the flared section 220 is set to correspond to the parting line 111 of the radial rib 110, which can further facilitate demolding and thus help improve production efficiency.

[0047] When the straight sections are arranged with equal diameters in the air outlet direction, the straight sections extend in the air outlet direction, which can further facilitate demolding and thus help improve production efficiency.

[0048] In this embodiment, the outer frame 200 is circular, which better guides the airflow of the air conditioner, making its distribution more uniform. The circular frame 200 has better air guiding performance, reducing turbulence and eddies at the grille 100, thereby reducing noise during air conditioner operation. Secondly, the circular frame 200 has a simple and elegant design, enhancing the overall aesthetics of the air conditioner. It breaks away from the stereotype of traditional square or rectangular grilles 100, adding more fashionable elements to the air conditioner. The circular frame 200 has a simple and smooth design, making it less prone to dust accumulation. Furthermore, its easy disassembly allows users to perform cleaning and maintenance more conveniently. Of course, this solution is not limited to this; in other embodiments, the outer frame 200 can also be rectangular.

[0049] This utility model also proposes an outdoor air conditioner unit, which includes a fan and an air outlet grille 10. The specific structure of the air outlet grille 10 is as described in the above embodiments. Since this outdoor air conditioner unit adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The air outlet grille 10 is located in the air outlet direction of the fan.

[0050] Reference Figure 4 Furthermore, in this embodiment, the radius of the impeller of the wind turbine is R, and the inner surface of the flared opening is arc-shaped with a radius of R1, that is, the radius of the inner surface of the flared opening is R1. The ratio of R to R1 is in the range of 0.1≤R1 / R≤0.14. This facilitates the reasonable configuration of the flared opening radius based on the impeller radius, thereby enabling the flared opening to better match the impeller, and thus achieving the effect of increasing the static pressure in the flared opening area and reducing the flow velocity.

[0051] Furthermore, the outdoor unit of the air conditioner also includes a housing, and the air outlet screen 10 is disposed on the housing. The outer side of the air outlet screen 10 is flush with the outer side of the housing, or the outer side of the air outlet screen 10 is recessed into the outer side of the housing, so as to avoid the air outlet screen 10 protruding from the outer side of the housing.

[0052] This utility model also proposes an air conditioner, which includes an outdoor unit. The specific structure of the outdoor unit is as described in the above embodiments. Since this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An air outlet mesh cover, characterized in that, include: Grille; and The outer frame is located on the outside of the grille, and at least the outer frame is flared at the end of the air outlet mesh in the air outlet direction.

2. The air outlet mesh cover as described in claim 1, characterized in that, The outer frame is flared outwards in the direction of air outlet.

3. The air outlet mesh cover as described in claim 2, characterized in that, The inner surface of the flared opening is curved.

4. The air outlet mesh cover as described in claim 1, characterized in that, The inner side of the outer frame includes a draft section and a flared section connected in the air outlet direction, so that the outer frame is flared at the end of the air outlet mesh in the air outlet direction.

5. The air outlet mesh cover as described in claim 4, characterized in that, The draft section is configured as a straight section, and the flaring section is configured as a curved section.

6. The air outlet mesh cover as described in claim 5, characterized in that, The straight section is either of equal diameter or gradually tapering in the air outlet direction.

7. The air outlet mesh cover as described in claim 4, characterized in that, The grille includes a plurality of radial ribs, which are arranged at circumferential intervals along the outer frame, and the radial ribs are wing-shaped.

8. The air outlet mesh cover as described in claim 7, characterized in that, The connection line between the draft section and the flared section is set to correspond to the parting line of the radial rib.

9. An outdoor unit for an air conditioner, characterized in that, It includes a fan and an air outlet cover as described in any one of claims 1 to 8, wherein the air outlet cover is disposed in the air outlet direction of the fan.

10. The outdoor unit of the air conditioner as described in claim 9, characterized in that, The impeller radius of the wind turbine is R, and the inner side of the flared opening is arc-shaped with a radius of R1, where 0.1 ≤ R1 / R ≤ 0.

14.

11. An air conditioner, characterized in that, Includes the outdoor unit of an air conditioner as described in any one of claims 9 and 10.

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