Grating and household appliance

Abstract

This utility model relates to the field of household appliance technology, and discloses a grille and a household appliance. The grille includes: a first region with multiple first ventilation holes distributed thereon; and a second region surrounding the first region, with multiple grille strips arranged circumferentially in the second region, and elongated second ventilation holes formed between adjacent grille strips. The area of ​​the second ventilation holes is larger than the area of ​​the first ventilation holes. By distributing multiple first ventilation holes in the first region and elongated second ventilation holes in the second region, this utility model can balance airflow distribution and structural strength, thereby increasing airflow while ensuring the structural strength of the grille.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to grilles and household appliances. Background Technology

[0002] Air intake grilles are widely used in ventilation, air conditioning, and heat dissipation systems, primarily to guide airflow into the equipment. In related technologies, air intake grilles employ a single-hole design, such as evenly distributed circular or elongated holes, to achieve basic airflow passage and protection functions. However, when the grille needs to handle large air volumes, the concentrated airflow in the central area leads to excessively high local wind speeds, easily generating turbulence and noise. Simultaneously, the insufficient strength of the grille edges makes them prone to deformation or breakage under mechanical stress, affecting the equipment's lifespan. Utility Model Content

[0003] In view of this, the present invention provides a grille and a household appliance to meet the needs of both adapting to large air volume intake and improving strength.

[0004] In a first aspect, this utility model provides a grille, comprising:

[0005] The first area contains multiple first ventilation holes;

[0006] The second region surrounds the first region. The second region is provided with multiple grid strips along the circumference. A long strip-shaped second ventilation hole is formed between two adjacent grid strips. The area of ​​the second ventilation hole is larger than the area of ​​the first ventilation hole.

[0007] Beneficial effects: The first area has multiple first ventilation holes. When airflow passes through the grille, if the air volume is large, the first area can guide the airflow to the second area, reducing airflow blockage. The elongated second ventilation holes in the second area increase the air intake area, preventing turbulence and ensuring strength. This grille, by distributing multiple first ventilation holes in the first area and elongated second ventilation holes in the second area, can balance airflow distribution and structural strength, achieving increased airflow while maintaining the structural strength of the grille.

[0008] In one alternative implementation, the first region is circular and the second region is annular.

[0009] Beneficial effects: The first area is circular, which allows airflow to pass evenly through the center of the grille and effectively guides radial airflow; the second area is annular, which ensures the strength of the entire grille.

[0010] In one alternative implementation, the radius of the first region is D1, where 140 mm ≤ D1 ≤ 150 mm;

[0011] And / or, the thickness of the first region is d1, where 2 mm ≤ d1 ≤ 3 mm.

[0012] Beneficial effects: The radius of the first region is D1, 140 mm ≤ D1 ≤ 150 mm. The first region has a large area, which can increase the air intake volume and make the airflow at the center more evenly distributed. The thickness of the first region is d1, 2 mm ≤ d1 ≤ 3 mm. Therefore, the length of the first ventilation hole is between 2 mm and 3 mm. The shorter length of the first ventilation hole can reduce the noise when the airflow passes through the first region and allow the airflow to pass through the first region smoothly.

[0013] In one alternative embodiment, the first ventilation hole is a circular hole.

[0014] Beneficial effects: The first ventilation hole is a circular hole, which allows airflow to pass through smoothly and generates less noise.

[0015] In one optional embodiment, the diameter of the first ventilation hole is d2, where 2 mm ≤ d2 ≤ 3 mm;

[0016] And / or, the distance between two adjacent first ventilation holes is L1, 1 mm ≤ L1 ≤ 2 mm;

[0017] And / or, the density of the first ventilation holes is 7-9 holes per square centimeter.

[0018] Beneficial effects: The diameter of the first ventilation hole is d2, 2 mm ≤ d2 ≤ 3 mm; the distance between two adjacent first ventilation holes is L1, 1 mm ≤ L1 ≤ 2 mm; the density of the first ventilation holes is 7-9 holes per square centimeter, which can be used for large air volumes passing through the first area.

[0019] In one alternative embodiment, the length of the second ventilation hole is L2, where 35 mm ≤ L2 ≤ 40 mm;

[0020] And / or, the width of the second ventilation hole is d3, 5 mm ≤ d3 ≤ 7 mm;

[0021] And / or, the distance between two adjacent second ventilation holes is L3, where 2 mm ≤ L3 ≤ 2.5 mm;

[0022] And / or, the thickness of the second region is d4, 5 mm ≤ d4 ≤ 7 mm.

[0023] Beneficial effects: The length of the second ventilation hole is L2, 35 mm ≤ L2 ≤ 40 mm, the width of the second ventilation hole is d3, 5 mm ≤ d3 ≤ 7 mm, the distance between two adjacent second ventilation holes is L3, 2 mm ≤ L3 ≤ 2.5 mm, and the thickness of the second area is d4, 5 mm ≤ d4 ≤ 7 mm. This can expand the air intake area, prevent turbulence, and increase the strength of the grille.

[0024] In one alternative embodiment, the grille further includes an annular body surrounding the second region, the distance between the second ventilation hole and the edge of the annular body being L4, 18 mm ≤ L4 ≤ 22 mm; and / or, the thickness of the annular body being d5, 1.5 mm ≤ d5 ≤ 2.5 mm.

[0025] Beneficial effects: By setting an annular main body that surrounds the second area, the distance between the second ventilation hole and the edge of the annular main body is L4, 18 mm ≤ L4 ≤ 22 mm; the thickness of the annular main body is d5, 1.5 mm ≤ d5 ≤ 2.5 mm, which can improve the strength of the entire grille.

[0026] In one alternative embodiment, the first surface of the annular body is provided with a circular rib and a vertical rib, the vertical rib connecting the second region and the circular rib.

[0027] Beneficial effects: By providing circular and vertical ribs on the first surface of the annular body, with the vertical ribs connecting the second area and the circular ribs, the strength of the grid can be increased. Additionally, the circular and vertical ribs can absorb vibration stress, maintaining the stability of the grid.

[0028] In one optional embodiment, the diameter of the circular rib is D2, where 265 mm ≤ D2 ≤ 285 mm;

[0029] And / or, the height of the circular rib is h, 1.5 mm ≤ h ≤ 2.5 mm;

[0030] And / or, the width of the circular rib is d6, 0.5 mm ≤ d6 ≤ 1.5 mm.

[0031] Beneficial effects: The diameter of the circular rib is D2, 265 mm ≤ D2 ≤ 285 mm; the height of the circular rib is h, 1.5 mm ≤ h ≤ 2.5 mm; the width of the circular rib is d6, 0.5 mm ≤ d6 ≤ 1.5 mm, which can increase the strength of the grid.

[0032] In one alternative embodiment, the first surface of the annular body is further provided with a plurality of buckles, which are connected to the circular ribs.

[0033] Beneficial effect: By setting multiple buckles on the first side of the ring-shaped body, it is easy to assemble the grille.

[0034] In one optional embodiment, the buckle is L-shaped, including a vertical part and a horizontal part, the vertical part is connected to the circular rib, and the vertical part is connected to the annular body through a connecting rib.

[0035] Beneficial effects: The buckle is L-shaped, including a vertical part and a horizontal part. The vertical part is connected to the circular rib, and the vertical part is connected to the ring body through the connecting rib, which can increase the strength of the buckle.

[0036] In one optional embodiment, the connecting rib is disposed on the inner side of the circular rib, and the thickness of the connecting rib is d7, 0.8 mm ≤ d7 ≤ 1.5 mm;

[0037] And / or, the vertical portion and the side of the connecting rib facing away from the horizontal portion are connected to the annular body by at least one rib plate.

[0038] Beneficial effects: The connecting rib is located inside the circular rib, and its thickness is d7, 0.8 mm ≤ d7 ≤ 1.5 mm. The relatively large thickness of the connecting rib ensures the strength of the snap fastener. The vertical part and the side of the connecting rib facing away from the horizontal part are connected to the annular body by at least one rib plate, which further enhances the strength of the snap fastener.

[0039] In one alternative embodiment, the first side of the annular body is further provided with a support ear, and the support ear is provided with a mounting hole.

[0040] Beneficial effect: By setting a support lug on the first side of the ring-shaped main body, and the support lug having a mounting hole, it is easy to assemble and fix the grille.

[0041] In one alternative embodiment, the lug is connected to the annular body by a triangular rib.

[0042] And / or, the lug includes a first connecting segment and a second connecting segment, the first connecting segment being connected to the annular body, the second connecting segment being located at the end of the first connecting segment away from the annular body, and the thickness of the first connecting segment being less than the thickness of the second connecting segment.

[0043] Beneficial effects: The bracket is connected to the annular body via triangular ribs, which enhances the bracket's strength. The bracket includes a first connecting segment and a second connecting segment. The first connecting segment is connected to the annular body, and the second connecting segment is located at the end of the first connecting segment furthest from the annular body. The thickness of the first connecting segment is less than that of the second connecting segment, which prevents shrinkage during injection molding of the bracket's outer surface.

[0044] Secondly, this utility model also provides a household appliance, including:

[0045] The aforementioned grille.

[0046] Beneficial effects: This household appliance features multiple first ventilation holes distributed in the first area. When airflow passes through the grille, especially with a large air volume, the first area can guide the airflow to the second area, reducing airflow blockage. The elongated second ventilation holes in the second area increase the air intake area, preventing turbulence and ensuring structural strength. This grille, by distributing multiple first ventilation holes in the first area and elongated second ventilation holes in the second area, balances airflow distribution and structural strength, achieving increased airflow while maintaining the grille's structural integrity. Attached Figure Description

[0047] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0048] Figure 1 This is a front view of a grille according to an embodiment of the present utility model;

[0049] Figure 2 This is a schematic diagram of a grille according to an embodiment of the present utility model. Figure 1 ;

[0050] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0051] Figure 4 for Figure 2 A magnified view of part B in the diagram;

[0052] Figure 5 This is a schematic diagram of a grille according to an embodiment of the present utility model. Figure 2 ;

[0053] Figure 6 for Figure 5 A magnified view of part of C;

[0054] Figure 7 for Figure 5 A magnified view of part of D;

[0055] Figure 8 for Figure 5 A magnified view of part of E in the diagram;

[0056] Figure 9 for Figure 5 A magnified view of part of F.

[0057] Explanation of reference numerals in the attached figures:

[0058] 1. First area; 101. First ventilation hole; 2. Second area; 201. Grille bar; 202. Second ventilation hole; 3. Annular body; 4. Circular rib; 5. Vertical rib; 6. Buckle; 601. Vertical part; 602. Horizontal part; 603. Groove; 7. Connecting rib; 8. Rib plate; 9. Support ear; 901. Mounting hole; 902. First connecting section; 903. Second connecting section; 10. Triangular rib. Detailed Implementation

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0061] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0063] Air intake grilles are widely used in ventilation, air conditioning, and heat dissipation systems, primarily to guide airflow into the equipment. In related technologies, air intake grilles employ a single-hole design, such as evenly distributed circular or elongated holes, to achieve basic airflow passage and protection functions. However, when the grille needs to handle large air volumes, the concentrated airflow in the central area leads to excessively high local wind speeds, easily generating turbulence and noise. Simultaneously, the insufficient strength of the grille edges makes them prone to deformation or breakage under mechanical stress, affecting the equipment's lifespan.

[0064] The reason is that a single hole type cannot balance airflow distribution and structural strength: if the circular hole is too small, it can increase strength but limit airflow; if the circular hole is too large, it can increase airflow but weaken strength; if the long strip hole can enhance strength, it is unevenly distributed and the airflow in the central area is insufficient.

[0065] The following is combined with Figures 1 to 9 The following describes embodiments of the present invention.

[0066] According to an embodiment of the present invention, a grille is provided, comprising a first region 1 and a second region 2.

[0067] The first region 1 has multiple first ventilation holes 101 distributed therein; the second region 2 surrounds the first region 1, and the second region 2 is provided with multiple grille strips 201 along the circumference. A long strip-shaped second ventilation hole 202 is formed between two adjacent grille strips 201, and the area of ​​the second ventilation hole 202 is larger than the area of ​​the first ventilation hole 101.

[0068] In this embodiment, the first region 1 has multiple first ventilation holes 101. When airflow passes through the grille, if the air volume is large, the first region 1 can guide the airflow to the second region 2, reducing airflow blockage. The elongated second ventilation holes 202 in the second region 2 increase the air intake area, preventing turbulence and ensuring strength. This grille, by distributing multiple first ventilation holes 101 in the first region 1 and elongated second ventilation holes 202 in the second region 2, can balance airflow distribution and structural strength, achieving increased airflow while maintaining the structural strength of the grille.

[0069] In this embodiment, since the second region 2 is provided with a grille strip 201 to ensure the strength of the grille, the area of ​​the first ventilation hole 101 in the first region 1 can be larger, thereby increasing the airflow.

[0070] In one embodiment, the first region 1 is circular, and the second region 2 is annular.

[0071] In this embodiment, the first region 1 is circular, which allows airflow to pass evenly through the center of the grille and effectively guides radial airflow. The second region 2 is annular, which ensures the strength of the entire grille.

[0072] In one embodiment, the entire grille is circular.

[0073] In one specific embodiment, the grille is made of ABS material.

[0074] In one specific embodiment, the diameter of the grille is 280 mm to 300 mm.

[0075] In one embodiment, the radius of the first region 1 is D1, 140 mm ≤ D1 ≤ 150 mm; and / or, the thickness of the first region 1 is d1, 2 mm ≤ d1 ≤ 3 mm.

[0076] In this embodiment, the radius of the first region 1 is D1, where 140 mm ≤ D1 ≤ 150 mm. The first region 1 has a large area, which can increase the air intake volume and make the airflow at the center evenly distributed. The thickness of the first region 1 is d1, where 2 mm ≤ d1 ≤ 3 mm. Therefore, the length of the first ventilation hole 101 is between 2 mm and 3 mm. The shorter length of the first ventilation hole 101 can reduce the noise when the airflow passes through the first region 1 and allow the airflow to pass through the first region 1 smoothly.

[0077] In one specific embodiment, the radius of the first region 1 is 140 mm.

[0078] In one specific embodiment, the radius of the first region 1 is 145 mm.

[0079] In one specific embodiment, the radius of the first region 1 is 150 mm.

[0080] In one specific embodiment, the radius of the first region 1 is half the radius of the entire grille.

[0081] In one specific embodiment, the thickness of the first region 1 is 2.5 mm.

[0082] In one specific embodiment, the thickness of the first region 1 is 2 mm.

[0083] In one specific embodiment, the thickness of the first region 1 is 3 mm.

[0084] In one embodiment, the first ventilation hole 101 is a circular hole.

[0085] In this embodiment, the first ventilation hole 101 is a circular hole, which allows airflow to pass smoothly through the first ventilation hole 101, resulting in less noise.

[0086] In one embodiment, the diameter of the first ventilation hole 101 is d2, 2 mm ≤ d2 ≤ 3 mm; and / or, the distance between two adjacent first ventilation holes 101 is L1, 1 mm ≤ L1 ≤ 2 mm; and / or, the density of the first ventilation holes 101 is 7-9 holes per square centimeter.

[0087] In this embodiment, the diameter of the first ventilation hole 101 is d2, where 2 mm ≤ d2 ≤ 3 mm; the distance between two adjacent first ventilation holes 101 is L1, where 1 mm ≤ L1 ≤ 2 mm; and the density of the first ventilation holes 101 is 7-9 holes per square centimeter, which is suitable for large air volumes passing through the first area 1.

[0088] In one specific embodiment, the diameter of the first ventilation hole 101 is 2 mm.

[0089] In one specific embodiment, the diameter of the first ventilation hole 101 is 2.5 mm.

[0090] In one specific embodiment, the diameter of the first ventilation hole 101 is 3 mm.

[0091] In one specific embodiment, the distance between two adjacent first ventilation holes 101 is 1 mm.

[0092] In one specific embodiment, the distance between two adjacent first ventilation holes 101 is 1.5 mm.

[0093] In one specific embodiment, the distance between two adjacent first ventilation holes 101 is 2 mm.

[0094] In one specific embodiment, the density of the first ventilation hole 101 is 7 holes per square centimeter.

[0095] In one specific embodiment, the density of the first ventilation hole 101 is 8 holes per square centimeter.

[0096] In one specific embodiment, the density of the first ventilation hole 101 is 9 holes per square centimeter.

[0097] Specifically, the first region 1 is circular, and multiple circular first ventilation holes 101 are evenly distributed radially from the center of the first region 1.

[0098] In one embodiment, the length of the second ventilation hole 202 is L2, 35 mm ≤ L2 ≤ 40 mm; and / or, the width of the second ventilation hole 202 is d3, 5 mm ≤ d3 ≤ 6 mm; and / or, the distance between two adjacent second ventilation holes 202 is L3, 2 mm ≤ L3 ≤ 2.5 mm; and / or, the thickness of the second region 2 is d4, 5 mm ≤ d4 ≤ 7 mm.

[0099] In this embodiment, the length of the second ventilation hole 202 is L2, 35 mm ≤ L2 ≤ 40 mm, the width of the second ventilation hole 202 is d3, 5 mm ≤ d3 ≤ 7 mm, the distance between two adjacent second ventilation holes 202 is L3, 2 mm ≤ L3 ≤ 2.5 mm, and the thickness of the second region 2 is d4, 5 mm ≤ d4 ≤ 7 mm. This can expand the air intake area, prevent turbulence, and increase the strength of the grille.

[0100] In one specific embodiment, the length of the second ventilation hole 202 is 35 mm.

[0101] In one specific embodiment, the length of the second ventilation hole 202 is 38 mm.

[0102] In one specific embodiment, the length of the second ventilation hole 202 is 40 mm.

[0103] In one specific embodiment, the width of the second ventilation hole 202 is 5 mm.

[0104] In one specific embodiment, the width of the second ventilation hole 202 is 6 mm.

[0105] In one specific embodiment, the width of the second ventilation hole 202 is 7 mm.

[0106] In one specific embodiment, the distance between two adjacent second ventilation holes 202 is 2 mm.

[0107] In one specific embodiment, the distance between two adjacent second ventilation holes 202 is 2.2 mm.

[0108] In one specific embodiment, the distance between two adjacent second ventilation holes 202 is 2.5 mm.

[0109] In one specific embodiment, the thickness of the second region 2 is 5 mm.

[0110] In one specific embodiment, the thickness of the second region 2 is 6 mm.

[0111] In one specific embodiment, the thickness of the second region 2 is 7 mm.

[0112] In one embodiment, the grille further includes an annular body 3, which surrounds the second region 2, and the distance between the second ventilation hole 202 and the edge of the annular body 3 is L4, 18 mm ≤ L4 ≤ 22 mm; and / or, the thickness of the annular body 3 is d5, 1.5 mm ≤ d5 ≤ 2.5 mm.

[0113] In this embodiment, by setting an annular body 3, which surrounds the second region 2, the distance between the second ventilation hole 202 and the edge of the annular body 3 is L4, 18 mm ≤ L4 ≤ 22 mm; the thickness of the annular body 3 is d5, 1.5 mm ≤ d5 ≤ 2.5 mm, which can improve the strength of the entire grille.

[0114] In one specific embodiment, the distance between the second ventilation hole 202 and the edge of the annular body 3 is 18 mm.

[0115] In one specific embodiment, the distance between the second ventilation hole 202 and the edge of the annular body 3 is 20 mm.

[0116] In one specific embodiment, the distance between the second ventilation hole 202 and the edge of the annular body 3 is 22 mm.

[0117] In one specific embodiment, the thickness of the annular body 3 is 1.5 mm.

[0118] In one specific embodiment, the thickness of the annular body 3 is 2 mm.

[0119] In one specific embodiment, the thickness of the annular body 3 is 2.5 mm.

[0120] In one embodiment, the first surface of the annular body 3 is provided with a circular rib 4 and a vertical rib 5, the vertical rib 5 connecting the second region 2 and the circular rib 4.

[0121] In this embodiment, by providing circular ribs 4 and vertical ribs 5 on the first surface of the annular body 3, with the vertical ribs 5 connecting the second region 2 and the circular ribs 4, the strength of the grid can be increased. Furthermore, the circular ribs 4 and vertical ribs 5 can absorb vibration stress and maintain the stability of the grid.

[0122] Specifically, the first side of the annular body 3 refers to the back side of the annular body 3. When the grille is applied to a household appliance such as a fan, the back side of the annular body 3 faces the inside of the fan, and the front side of the annular body 3 is exposed on the outside.

[0123] In one embodiment, the diameter of the circular rib 4 is D2, 265 mm ≤ D2 ≤ 285 mm; and / or, the height of the circular rib 4 is h, 1.5 mm ≤ h ≤ 2.5 mm; and / or, the width of the circular rib 4 is d6, 0.5 mm ≤ d6 ≤ 1.5 mm.

[0124] In this embodiment, the diameter of the circular rib 4 is D2, 265 mm ≤ D2 ≤ 285 mm; the height of the circular rib 4 is h, 1.5 mm ≤ h ≤ 2.5 mm; and the width of the circular rib 4 is d6, 0.5 mm ≤ d6 ≤ 1.5 mm, which can increase the strength of the grid.

[0125] In one specific embodiment, the diameter of the circular rib 4 is 265 mm.

[0126] In one specific embodiment, the diameter of the circular rib 4 is 275 mm.

[0127] In one specific embodiment, the diameter of the circular rib 4 is 285 mm.

[0128] In one specific embodiment, the height of the circular rib 4 is 1.5 mm.

[0129] In one specific embodiment, the height of the circular rib 4 is 2 mm.

[0130] In one specific embodiment, the height of the circular rib 4 is 2.5 mm.

[0131] In one specific embodiment, the width of the circular rib 4 is 0.5 mm.

[0132] In one specific embodiment, the width of the circular rib 4 is 1 mm.

[0133] In one specific embodiment, the width of the circular rib 4 is 1.5 mm.

[0134] In one embodiment, the edges of the first ventilation hole 101 and / or the second ventilation hole 202 are chamfered.

[0135] In this embodiment, by providing chamfers at the edges of the first ventilation hole 101 and / or the second ventilation hole 202, airflow can be made smoother.

[0136] In one specific embodiment, the edges of both the first ventilation hole 101 and the second ventilation hole 202 are chamfered.

[0137] In one specific embodiment, the length of the right-angled side of the chamfer is 2 mm.

[0138] In one embodiment, the first side of the annular body 3 is also provided with a plurality of buckles 6, which are connected to the circular ribs 4.

[0139] In this embodiment, multiple snap fasteners 6 are provided on the first surface of the annular body 3 to facilitate the assembly of the grille.

[0140] In one specific embodiment, six clips are distributed at the four 45° dividing lines around the circular rib and on both sides of the middle to assemble the grille.

[0141] In one embodiment, the buckle 6 is L-shaped, including a vertical part 601 and a horizontal part 602. The vertical part 601 is connected to the circular rib 4, and the vertical part 601 is connected to the annular body 3 through the connecting rib 7.

[0142] In this embodiment, the buckle 6 is L-shaped, including a vertical part 601 and a horizontal part 602. The vertical part 601 is connected to the circular rib 4, and the vertical part 601 is connected to the annular body 3 through the connecting rib 7, which can increase the strength of the buckle 6.

[0143] In one embodiment, the horizontal portion 602 is provided with a groove 603 to prevent shrinkage during injection molding.

[0144] In one embodiment, the connecting rib 7 is disposed inside the circular rib 4, and the thickness of the connecting rib 7 is d7, 0.8 mm ≤ d7 ≤ 1.5 mm; and / or, the vertical part 601 and the side of the connecting rib 7 opposite to the horizontal part 602 are connected to the annular body 3 by at least one rib plate 8.

[0145] In this embodiment, the connecting rib 7 is located inside the circular rib 4, and the thickness of the connecting rib 7 is d7, 0.8 mm ≤ d7 ≤ 1.5 mm. The connecting rib 7 has a large thickness, which can ensure the strength of the buckle 6. The vertical part 601 and the side of the connecting rib 7 facing away from the horizontal part 602 are connected to the annular body 3 through at least one rib plate 8, which can further improve the strength of the buckle 6.

[0146] In one embodiment, the first side of the annular body 3 is also provided with a support ear 9, and the support ear 9 is provided with a mounting hole 901.

[0147] In this embodiment, a support ear 9 is provided on the first side of the annular body 3. The support ear 9 is provided with a mounting hole 901, which facilitates the assembly and fixing of the grille.

[0148] In one embodiment, the lug 9 is connected to the annular body 3 by a triangular rib 10; and / or, the lug 9 includes a first connecting segment 902 and a second connecting segment 903, the first connecting segment 902 is connected to the annular body 3, the second connecting segment 903 is located at the end of the first connecting segment 902 away from the annular body 3, and the thickness of the first connecting segment 902 is less than the thickness of the second connecting segment 903.

[0149] In this embodiment, the lug 9 is connected to the annular body 3 by a triangular rib 10, which can improve the strength of the lug 9. The lug 9 includes a first connecting segment 902 and a second connecting segment 903. The first connecting segment 902 is connected to the annular body 3, and the second connecting segment 903 is located at the end of the first connecting segment 902 away from the annular body 3. The thickness of the first connecting segment 902 is less than the thickness of the second connecting segment 903, which can prevent shrinkage of the injection molding surface of the lug 9.

[0150] In one specific embodiment, the thickness of the first connecting segment 902 is 1 mm, and the thickness of the second connecting segment 903 is 2 mm.

[0151] In one specific embodiment, the height of the first connecting segment 902 is 2 mm.

[0152] According to an embodiment of the present invention, another aspect provides a household appliance, including: the grille provided in the above embodiment.

[0153] This household appliance has multiple first ventilation holes 101 distributed in the first region 1. When airflow passes through the grille, if the air volume is large, the first region 1 can guide the airflow to the second region 2, reducing airflow blockage. The elongated second ventilation holes 202 in the second region 2 increase the air intake area, preventing turbulence and ensuring strength. By distributing multiple first ventilation holes 101 in the first region 1 and elongated second ventilation holes 202 in the second region 2, this grille can balance airflow distribution and structural strength, achieving increased airflow while maintaining the structural strength of the grille.

[0154] In one specific embodiment, the household appliance is a fan, an air purifier, etc.

[0155] In household appliances, grilles are mainly used as air intake grilles.

[0156] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by this application.

Claims

1. A grid, characterized in that, include: The first area (1) has multiple first ventilation holes (101); The second region (2) surrounds the first region (1). The second region (2) is provided with a plurality of grid strips (201) along the circumference. A long strip-shaped second ventilation hole (202) is formed between two adjacent grid strips (201). The area of ​​the second ventilation hole (202) is larger than the area of ​​the first ventilation hole (101).

2. The grid according to claim 1, characterized in that The first region (1) is circular, and the second region (2) is annular.

3. The grid according to claim 2, characterized in that The radius of the first region (1) is D1, 140 mm ≤ D1 ≤ 150 mm; And / or, the thickness of the first region (1) is d1, 2 mm ≤ d1 ≤ 3 mm.

4. The grid of claim 1, wherein, The first ventilation hole (101) is a circular hole.

5. The grille according to claim 4, characterized in that, The diameter of the first ventilation hole (101) is d2, where 2 mm ≤ d2 ≤ 3 mm; And / or, the distance between two adjacent first ventilation holes (101) is L1, 1 mm ≤ L1 ≤ 2 mm; And / or, the density of the first ventilation hole (101) is 7-9 holes per square centimeter.

6. The grille according to any one of claims 1 to 5, characterized in that, The length of the second ventilation hole (202) is L2, 35 mm ≤ L2 ≤ 40 mm; And / or, the width of the second ventilation hole (202) is d3, 5 mm ≤ d3 ≤ 7 mm; And / or, the distance between two adjacent second ventilation holes (202) is L3, 2 mm ≤ L3 ≤ 2.5 mm; And / or, the thickness of the second region (2) is d4, 5 mm ≤ d4 ≤ 7 mm.

7. The grille according to any one of claims 1 to 5, characterized in that, The grille also includes an annular body (3) surrounding the second region (2), the distance between the second ventilation hole (202) and the edge of the annular body (3) being L4, 18 mm ≤ L4 ≤ 22 mm; and / or, the thickness of the annular body (3) being d5, 1.5 mm ≤ d5 ≤ 2.5 mm.

8. The grille according to claim 7, characterized in that, The first surface of the annular body (3) is provided with a circular rib (4) and a vertical rib (5), and the vertical rib (5) connects the second region (2) and the circular rib (4).

9. The grille according to claim 8, characterized in that, The diameter of the circular rib (4) is D2, 265 mm ≤ D2 ≤ 285 mm; And / or, the height of the circular rib (4) is h, 1.5 mm ≤ h ≤ 2.5 mm; And / or, the width of the circular rib (4) is d6, 0.5 mm ≤ d6 ≤ 1.5 mm.

10. The grille according to claim 8, characterized in that, The first side of the annular body (3) is also provided with a plurality of buckles (6), which are connected to the circular ribs (4).

11. The grille according to claim 10, characterized in that, The buckle (6) is L-shaped and includes a vertical part (601) and a horizontal part (602). The vertical part (601) is connected to the circular rib (4), and the vertical part (601) is connected to the annular body (3) through a connecting rib (7).

12. The grille according to claim 11, characterized in that, The connecting rib (7) is located on the inner side of the circular rib (4), and the thickness of the connecting rib (7) is d7, 0.8 mm ≤ d7 ≤ 1.5 mm; And / or, the vertical part (601) and the connecting rib (7) on the side away from the horizontal part (602) are connected to the annular body (3) by at least one rib plate (8).

13. The grille according to claim 7, characterized in that, The first side of the annular body (3) is also provided with a support ear (9), and the support ear (9) is provided with a mounting hole (901).

14. The grille according to claim 13, characterized in that, The lug (9) is connected to the annular body (3) by a triangular rib (10); And / or, the lug (9) includes a first connecting segment (902) and a second connecting segment (903), the first connecting segment (902) being connected to the annular body (3), the second connecting segment (903) being located at the end of the first connecting segment (902) away from the annular body (3), and the thickness of the first connecting segment (902) being less than the thickness of the second connecting segment (903).

15. A household appliance, characterized in that, include: The grille according to any one of claims 1 to 14.

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