Air outlet mesh cover and air conditioner

Abstract

The application embodiment belongs to the technical field of air conditioning, and relates to an air outlet grille and an air conditioner, wherein the air outlet grille includes a frame and a plurality of spokes, wherein the plurality of spokes are located in the frame, and at least one end of the spokes is connected to the frame; an angle A is formed between the side walls of at least some of the spokes and the central axis of the frame; wherein, along the direction from the central axis of the frame to the frame, the angle A gradually increases; or, the angle A is a fixed value. An angle A is formed between the spokes and the central axis of the frame in this embodiment, so that the gap formed between adjacent spokes is inclined with the inclination of the wind, and thus the central axis of the gap can be nearly parallel to the flow path of the wind, that is, the smaller the shielding effect of the spokes on the wind, the more wind can flow through the air outlet grille from the gap between the two spokes, thereby avoiding the air outlet grille from causing a large obstruction to the wind, and also avoiding it from being subjected to excessive force and making noise.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and more specifically, to an air outlet grille and an air conditioner. Background Art

[0002] In the prior art, the outdoor unit of the air conditioner is mainly used to install air conditioning components such as cooling fans, condensers, and compressors. Due to heat dissipation requirements, the outdoor unit of the air conditioner usually reserves a vent on its front panel for heat dissipation of the fan blades. In order to prevent foreign objects from entering through the vent and causing damage to the fan blades, an air outlet mesh cover needs to be installed on the front panel to prevent foreign objects from entering the fan blades.

[0003] The grille of the air outlet mesh cover in the prior art plays a role in blocking the entry of foreign objects, but it generates a lot of noise and has a strong wind-blocking effect, resulting in poor heat dissipation. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present application is that the existing air outlet grilles have high noise and poor heat dissipation.

[0005] In order to solve the above technical problems, the embodiment of the present application adopts the following solution:

[0006] An air outlet mesh cover, comprising a frame and a plurality of spokes, wherein the plurality of spokes are located in the frame, and at least one end of the spoke is connected to the frame;

[0007] An angle A is formed between the side walls of at least part of the spokes and the central axis of the frame;

[0008] Wherein, along the direction from the central axis of the frame to the frame, the angle A gradually increases; or,

[0009] The angle A is a fixed value.

[0010] Furthermore, the angle A is between 0° and 30°.

[0011] Furthermore, the spokes include parallel segments and inclined segments connected to each other, and the inclined segments are connected to the frame;

[0012] The central axis of the frame is located in the plane where the parallel section is located, and the angle A is formed between the inclined section and the central axis of the frame.

[0013] Furthermore, a first straight line is formed at a connection point between the inclined section and the frame, and an angle A formed by the first straight line and a central axis of the frame is 30°.

[0014] Furthermore, the thickness of the parallel section is smaller than the thickness of the inclined section.

[0015] Furthermore, the angle A satisfies the following formula:

[0016]

[0017] Among them, A0 is the angle formed by the spoke and the central axis of the frame when the spoke begins to tilt, V0 is the wind speed after the wind passes through the spoke at the angle of A0, A1 is the angle formed by the spoke and the central axis of the frame when the spoke begins to tilt, and V1 is the wind speed after the wind passes through the spoke at the angle of A1;

[0018] Where b is a constant.

[0019] Furthermore, the air outlet grille also includes a center piece, which is located at the center of the frame. One end of the spoke is connected to the center piece, and the other end is connected to the frame.

[0020] Furthermore, the side wall of the spoke is arched to form a guiding curved surface.

[0021] Furthermore, the air outlet grille further comprises a plurality of annular air guide strips with successively increasing diameters, and the plurality of annular air guide strips are sequentially distributed from small to large along the direction from the central axis of the frame to the side wall of the frame;

[0022] The annular air guide strip is connected to the spokes, and a plurality of vents are formed between the annular air guide strip and the spokes.

[0023] Correspondingly, the present application also provides an air conditioner, which includes an air outlet grille as described in any one of the above embodiments.

[0024] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0025] Because there is an angle A between the spokes and the central axis of the frame in this embodiment, the gaps formed between adjacent spokes are inclined with the degree of inclination of the wind, so that the central axis of the gap can be almost parallel to the flow path of the wind, that is, the smaller the shielding effect of the spokes on the wind, the wind can flow through the gap between the two spokes through the air outlet mesh cover, thereby avoiding the air outlet mesh cover causing greater obstruction to the wind and preventing it from being subjected to excessive force and making noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1It is a schematic diagram of wind speed at various locations of the air outlet grille;

[0028] Figure 2 is a schematic structural diagram of an air outlet grille according to an embodiment of the present application;

[0029] Figure 3 is another structural schematic diagram of the air outlet grille of an embodiment of the present application;

[0030] Figure 4 This is a schematic diagram of the structure of the air outlet grille of the embodiment of the present application when it has only a single spoke;

[0031] Figure 5 This is another structural schematic diagram when the air outlet grille of the embodiment of the present application has only a single spoke.

[0032] Reference numerals:

[0033] The air outlet grille 10 , the central axis 20 , the spokes 100 , the parallel section 110 , the inclined section 120 , the center piece 200 , the annular air guide strip 300 , and the frame 400 . DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0035] In this application, unless otherwise stated, directional words such as "upper" and "lower" generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inner" and "outer" refer to the outline of the device. In addition, in the description of this application, the term "including" means "including but not limited to". The terms first, second, third, etc. are used only as labels and do not impose numerical requirements or establish an order.

[0036] In this application, "and / or" describes the association relationship of associated objects, indicating that there may be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. A and B can be singular or plural.

[0037] In the present application, "at least one" means one or more, and "plurality" means two or more. "At least one", "at least one of the following" or similar expressions refer to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple, respectively.

[0038] Various embodiments of the present application may be presented in the form of a range; it should be understood that the description in the form of a range is only for convenience and brevity, and should not be understood as a rigid limitation on the scope of the present application; therefore, the range description should be considered to have specifically disclosed all possible sub-ranges and single numerical values ​​within the range. For example, the range description from 1 to 6 should be considered to have specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5 and 6, which apply regardless of the range. In addition, whenever a numerical range is indicated herein, it is meant to include any cited number (fractional or integer) within the indicated range.

[0039] Please refer to Figure 1 The inventors have found that the wind force provided by the fan gradually increases along the direction from the central axis 20 of the frame 400 to the frame 400. At the same time, in order to enable the fan blades to form wind blowing toward the central axis 20 of the frame 400 when rotating, the fan blades are usually in the shape of a propeller, so the wind formed by the rotation of the fan blades is actually not parallel to the central axis 20 of the frame 400, but is deviated to a certain extent. Figure 1 As shown, the wind force generated at the edge of the fan blade (close to the frame 400) is the largest, and the degree of deflection is between about 2.4% and 3.2%. At this time, part of the wind will hit the side wall of the spoke 100, causing the spoke 100 to be subjected to greater force.

[0040] In summary, the existing air outlet mesh cover 10 cannot adapt to this part of the deflected wind, and will form a large blockage to this part of the deflected wind, which will cause the air outlet mesh cover 10 to be subjected to greater force and vibrate and emit abnormal noise when in use, and at the same time cause the service life of the air outlet mesh cover 10 to be short and the wind force in different places to be uneven.

[0041] To solve the above problems, please refer to Figures 1 to 5 , Figure 5The straight line marked with number 20 is the central axis 20 of the frame 400. The present application provides an air outlet mesh cover 10, which includes a frame 400 and a plurality of spokes 100, wherein the plurality of spokes 100 are located in the frame 400, and at least one end of the spoke 100 is connected to the frame 400;

[0042] An angle A is formed between the sidewalls of at least part of the spokes 100 and the central axis 20 of the frame 400;

[0043] Wherein, along the direction from the central axis 20 of the frame 400 to the frame 400, the angle A gradually increases; or,

[0044] The angle A is a fixed value.

[0045] In this embodiment, please refer to Figure 5 The angle A may be the angle formed by the projection of the central axis 20 of the frame 400 on the inner wall of the frame 400 and the projection of the spoke 100 on the inner wall of the frame 400. Since there is a certain angle between the spoke 100 and the central axis 20 of the frame 400, the gap formed between adjacent spokes 100 is inclined with the inclination of the wind, thereby making the central axis 20 of the gap and the flow path of the wind there almost parallel, that is, the smaller the shielding effect of the spoke 100 on the wind, the wind can flow through the air outlet mesh cover 10 from the gap between the two spokes 100, thereby preventing the wind from directly hitting the side wall of the spoke 100 when blowing out of the air outlet mesh cover 10 at an angle, thereby preventing the air outlet mesh cover 10 from causing greater obstruction to the wind and preventing it from being subjected to excessive force and making noise.

[0046] It should be understood that when the angle A gradually increases, it indicates that the inclination of the spoke 100 gradually increases, that is, the spoke 100 of this embodiment increases its own inclination as the inclination of the wind gradually increases, so that each part of the spoke 100 can adapt to the inclination of the wind at that place, thereby reducing the wind resistance of the air outlet grille as a whole 10. Figure 2 The divergent circle from the central axis 20 of the frame 400 to the frame 400 is shown; a plurality of spokes 100 may be staggered to form a mesh structure, in which case both ends of the spokes 100 are connected to the frame 400 .

[0047] Furthermore, the angle A is 0° to 30°.

[0048] In this embodiment, the larger the angle A is, the greater the wind resistance of the air outlet grille 10 is. However, if the angle A is too large, the spokes 100 may exceed the inclination of the wind, which in turn may cause the air outlet grille 10 to be subjected to excessive force and shake, making the wind force near the frame 400 smaller than the wind force near the central axis 20 of the frame 400. Therefore, the angle range of the angle A can make the control of the wind force by the spokes 100 meet the expected design.

[0049] For further information, please refer to Figures 2 to 5 , the spoke 100 includes a parallel section 110 and an inclined section 120 connected to each other, and the inclined section 120 is connected to the frame 400;

[0050] The central axis 20 of the frame 400 is located in the plane where the parallel section 110 is located, and an angle A is formed between the inclined section 120 and the central axis 20 of the frame 400 .

[0051] In this embodiment, since the wind force variation degree of the part close to the central axis 20 of the frame 400 is small, in order to reduce the difficulty of process production, it can be designed as a parallel section 110, and the central axis 20 of the frame 400 is located in the plane where the parallel section 110 is located. The wind force variation degree of the inclined section 120 is large, so only this part can be set to an inclined design.

[0052] For further information, please refer to Figure 5 The connection between the inclined section 120 and the frame 400 forms a first straight line (not marked in the figure), and the angle A formed by the first straight line and the central axis 20 of the frame 400 is 30°.

[0053] In this embodiment, since the connection between the inclined section 120 and the parallel section 110 is parallel to the central axis 20 of the frame 400, the angle A therein is 0°, and the angle A formed by the first straight line and the central axis 20 is 30°, the angle range of the inclined section 120 should be 0° to 30°. Within this angle range, the inclined section 120 can effectively avoid

[0054] For further information, please refer to Figures 2 to 5 , the thickness of the parallel section 110 is smaller than the thickness of the inclined section 120 .

[0055] In this embodiment, since the spokes 100 of the inclined section 120 are subjected to greater wind force, the thickness of the inclined section 120 can be increased to prevent them from breaking or bending. The spokes 100 of the parallel section 110 are subjected to less wind force, so their thickness can be set to be smaller than that of the inclined section 120, thereby reducing material loss.

[0056] For further information, please refer to Figures 2 to 5 , the calculation formula of angle A includes:

[0057]

[0058] Wherein, A0 is the angle formed by the spoke 100 and the central axis 20 of the frame 400 when the spoke 100 starts to tilt, V0 is the wind speed after the wind passes through the spoke 100 at the angle A0, A1 is the angle formed by the spoke 100 and the central axis 20 of the frame 400 when the spoke 100 starts to tilt, and V1 is the wind speed after the wind passes through the spoke 100 at the angle A1;

[0059] Where b is a constant.

[0060] In this embodiment, in order to describe the relationship between wind speed and angle A, the logarithmic function used in the embodiment of the present application, the exponential function can adapt to nonlinear relationships, and can map a larger data range to a smaller interval, so as to better reflect the change trend of the data; wherein, b can be obtained through experiments, which determines the growth rate of the exponential function; the method for obtaining it is as follows: measure the size of A0 and V0, then select a spoke 100 at a certain location, and change its inclination until the wind speed V1 at the angle A1 at that location reaches the expected wind speed;

[0061] Then, Take the natural number In on both sides of the formula to take the logarithm, and then take out the parameter b separately, and the formula can be obtained as follows:

[0062]

[0063] After obtaining the above parameter b, the formula of the embodiment of the present application can enable the size of the angle A to be quickly adjusted according to the required target wind speed value when the air outlet grille 10 is manufactured.

[0064] For further information, please refer to Figure 4 and Figure 5 The air outlet grille 10 further includes a center piece 200 , which is located at the center of the frame 400 , and one end of the spoke 100 is connected to the center piece 200 , and the other end is connected to the frame 400 .

[0065] In this embodiment, in order to enhance the structural strength of the air outlet grille 10 and reduce the manufacturing cost of the air outlet grille 10, a center piece 200 is further provided, and the center piece 200 serves as a gathering place for a plurality of spokes 100 and supports the spokes 100. At this time, since the wind force at the center of the air outlet grille 10 is relatively small, the provision of the center piece 200 will not affect the user experience.

[0066] For further information, please refer to Figures 4 to 5 The side wall of the spoke 100 is arched to form a guiding curved surface.

[0067] In this embodiment, if the side walls of the spokes 100 are straight walls, when the wind blows through the channel formed by the two straight walls, it flows in a straight line, with a higher wind speed and more violent. When the wind blows through the curved surface, its flow speed and flow direction change, and the diffusion range of the wind direction increases, so that the wind can be softened, thereby improving the user experience.

[0068] For further information, please refer to Figures 2 to Figure 3The air outlet grille 10 further includes a plurality of annular air guide strips 300 with increasing diameters, and the plurality of annular air guide strips 300 are distributed in order from small to large along the central axis 20 of the frame 400 to the side wall of the frame 400;

[0069] The annular air guide strip 300 is connected to the spoke 100 , and a plurality of ventilation holes are formed between the annular air guide strip 300 and the spoke 100 .

[0070] In this embodiment, the annular air guide strip 300 can enhance the structural strength of the air outlet grille 10 and guide the outflow direction of the wind.

[0071] Correspondingly, the present application also provides an air conditioner, which includes an air outlet grille 10 as described in any one of the above embodiments.

[0072] In this embodiment, since the air conditioner includes the air outlet mesh cover 10 of any one of the above embodiments, the air force blown out by the air conditioner is relatively large, the heat dissipation effect is better, and the noise during the operation of the air conditioner is relatively small.

[0073] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

[0074] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, combinations, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present application, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air outlet grille, characterized in that: The air outlet grille includes a frame and a plurality of spokes, wherein the plurality of spokes are located in the frame, and at least one end of the spoke is connected to the frame; An angle A is formed between the side walls of at least part of the spokes and the central axis of the frame; Wherein, along the direction from the central axis of the frame to the frame, the angle A gradually increases; or, The angle A is a fixed value.

2. The air outlet grille according to claim 1, characterized in that: The angle A is 0° to 30°.

3. The air outlet grille according to claim 2, characterized in that: The spokes include parallel segments and inclined segments connected to each other, and the inclined segments are connected to the frame; The central axis of the frame is located in the plane where the parallel section is located, and the angle A is formed between the inclined section and the central axis of the frame.

4. The air outlet grille according to claim 3, characterized in that: A first straight line is formed at a connection point between the inclined section and the frame, and an angle A formed by the first straight line and the central axis of the frame is 30°.

5. The air outlet grille according to claim 3, characterized in that: The thickness of the parallel section is smaller than the thickness of the inclined section.

6. The air outlet grille according to claim 2, characterized in that: The angle A satisfies the following formula: Among them, A0 is the angle formed by the spoke and the central axis of the frame when the spoke begins to tilt, V0 is the wind speed after the wind passes through the spoke at the angle of A0, A1 is the angle formed by the spoke and the central axis of the frame when the spoke begins to tilt, and V1 is the wind speed after the wind passes through the spoke at the angle of A1; Where b is a constant.

7. The air outlet grille according to claim 1, characterized in that: The air outlet grille further comprises a center piece, wherein the center piece is located at the center of the frame, one end of the spoke is connected to the center piece, and the other end is connected to the frame.

8. The air outlet grille according to claim 1, characterized in that: The side wall of the spoke is arched to form a guiding curved surface.

9. The air outlet grille according to claim 1, characterized in that: The air outlet grille further comprises a plurality of annular air guide strips with increasing diameters, and the plurality of annular air guide strips are distributed in order from small to large along the direction from the central axis of the frame to the side wall of the frame; The annular air guide strip is connected to the spokes, and a plurality of vents are formed between the annular air guide strip and the spokes.

10. An air conditioner, characterized in that: The air conditioner comprises an air outlet grille as claimed in any one of claims 1 to 9.

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