Grid structure and tower fan

Abstract

The invention provides a grid structure and a tower fan, the grid structure comprises first ribs and second ribs, the number of the first ribs is at least two, an interval space is formed between every two adjacent first ribs, the second ribs are arranged in the interval spaces, and the first ribs and the second ribs are arranged in the interval spaces. The first ribs are arranged at intervals, the second ribs are connected between every two adjacent first ribs, the number of the interval spaces is at least two, the number of the second ribs is at least two, at least one second rib is arranged in one interval space, and the number of the second ribs is at least two in every two adjacent interval spaces. Wherein the second ribs in one interval space are not opposite to the second ribs in the other interval space and are arranged in a staggered mode, and the minimum distance between every two adjacent first ribs ranges from 5 mm to 8 mm. According to the grid structure, the structural combination effect can be formed, local stress is greatly reduced, the overall interval strength and impact strength are improved, the structural strength of the grid structure is improved, and meanwhile the attractiveness is improved.

Description

Technical Field

[0001] The invention relates to the technical field of fans, and in particular to a grille structure and a tower fan. Background Art

[0002] In the prior art, the grille structure is a key component of ventilation equipment, and its structural design often faces the trade-off between aesthetics, structural strength and cost. Traditional grille structure design usually focuses on structural stability, but often ignores the needs of aesthetics and cost control, or sacrifices structural strength in pursuit of aesthetics, resulting in easy damage to the product and increased maintenance costs.

[0003] Therefore, how to ensure the strength of the grille structure while improving its aesthetics and reducing production costs has become a problem that needs to be urgently solved in the current industry.

[0004] Since the grille structures in the prior art are mostly designed in a structure with thickened ribs to ensure that the strength meets the impact test, resulting in technical problems such as low aesthetics, the present invention studies and designs a grille structure and a tower fan. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the grille structure in the prior art cannot take into account both structural strength and aesthetics at the same time, thereby providing a grille structure and a tower fan.

[0006] In order to solve the above problems, the present invention provides a grid structure, which includes:

[0007] A first rib and a second rib, wherein the number of the first ribs is at least two, and a spacing space is formed between two adjacent first ribs, the second rib is arranged in the spacing space, and the second rib is connected between two adjacent first ribs, the number of the spacing spaces is also at least two, the number of the second ribs is also at least two, and at least one second rib is arranged in one of the spacing spaces, and in two adjacent spacing spaces, the second rib in one spacing space is not opposite to the second rib in the other spacing space, forming a staggered arrangement, and the minimum spacing between two adjacent first ribs is 5 to 8 mm.

[0008] In some embodiments,

[0009] At least two second ribs are arranged in the same spacing space, and the minimum distance between two adjacent second ribs in the same spacing space is 40-60 mm.

[0010] In some embodiments,

[0011] The material of the second rib is ABS material or PP material. When the material of the second rib is ABS material, the interval between two adjacent second ribs in the same spacing space is 50-60mm. When the material of the second rib is PP material, the interval between two adjacent second ribs in the same spacing space is 40-50mm.

[0012] In some embodiments,

[0013] There are a plurality of first ribs, and the plurality of first ribs are sequentially arranged at intervals along a first direction to form a plurality of spacing spaces sequentially arranged at intervals along the first direction. There are a plurality of second ribs, and the plurality of second ribs are sequentially arranged in an alternating manner along the first direction.

[0014] In some embodiments,

[0015] At least two second ribs are arranged in the same spacing space, and at least two second ribs in the same spacing space are arranged at intervals along a second direction, and the second direction is different from the first direction.

[0016] In some embodiments,

[0017] The first direction is perpendicular to the second direction, the length of the second rib extends in the first direction, and the length of the first rib extends in the second direction.

[0018] In some embodiments,

[0019] The distance between two adjacent first ribs is equal, forming an equidistant arrangement; the distance between two adjacent second ribs in the same spacing space is equal, forming an equidistant arrangement.

[0020] In some embodiments,

[0021] It also includes a main board, a ventilation hole is opened in the center of the main board, at least two of the first ribs are arranged at the ventilation hole, the main board includes a first side end and a second side end opposite to each other, the ventilation hole is located between the first side end and the second side end, one end of the first rib is connected to the first side end, and the other end extends to be connected to the second side end, the main board also includes a third side end and a fourth side end opposite to each other, the ventilation hole is located between the third side end and the fourth side end, the minimum spacing between the first rib and the third side end is 5 to 8 mm, the minimum spacing between the first rib and the fourth side end is 5 to 8 mm, and there is also a ventilation space between the third side end and the first rib, and between the fourth side end and the first rib, a second rib is also arranged in the ventilation space, and at least two of the second ribs are arranged in the same spacing space, and the minimum spacing between two adjacent second ribs in the same ventilation space is 40 to 60 mm.

[0022] In some embodiments,

[0023] The material of the second rib is ABS material or PP material. When the material of the second rib is ABS material, the interval between two adjacent second ribs in the same ventilation space is 50-60mm. When the material of the second rib is PP material, the interval between two adjacent second ribs in the same ventilation space is 40-50mm.

[0024] In some embodiments,

[0025] In the same ventilation space, the spacing between two adjacent second ribs is equal, forming an evenly spaced arrangement; or the spacing between two adjacent second ribs in the direction from the first side end to the second side end is equal, forming an evenly spaced arrangement in the entire ventilation area.

[0026] In some embodiments,

[0027] The first ribs are straight plate ribs or arc-shaped plate ribs, and the second ribs are straight plate ribs or arc-shaped plate ribs.

[0028] The present invention also provides a tower fan, which comprises the above-mentioned grille structure.

[0029] A grille structure and a tower fan provided by the present invention have the following beneficial effects:

[0030] 1. The present invention sets the grille structure to include a first rib and a second rib, and there are at least two first ribs, and a spacing space is formed between the two first ribs to allow the passage of wind, and the second ribs are arranged in the spacing space, and the second ribs of two adjacent spacing spaces are not opposite to each other, thereby forming a staggered arrangement, and the minimum spacing between two adjacent first ribs is 5 to 8 mm, forming a structural combination. Compared with the existing single staggered ribs and single spacing dimensions, the present invention greatly reduces local stress, improves the overall spacing strength and impact strength, and improves the structural strength of the grille structure. At the same time, it can also reduce the use of materials, reduce the product weight of the air outlet grille, reduce costs, and improve aesthetics.

[0031] 2. The present invention further provides that the minimum spacing between two adjacent second ribs in the same spacing space is 40 to 60 mm, which can be integrated with the structure of the first ribs with a minimum spacing of 5 to 8 mm and the staggered second ribs to further form a structural combination. Compared with the existing single staggered ribs and single spacing dimensions, the local stress is further reduced, the overall spacing strength and impact strength are improved, and the structural strength of the grille structure is further improved. At the same time, the use of materials can be reduced, the product weight of the air outlet grille is reduced, the cost is reduced, and the aesthetics is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a front structural diagram of the grid structure of the present invention;

[0033] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part C in the middle;

[0034] Figure 3 yes Figure 1 An enlarged schematic diagram of alternative embodiment 1 (straight vertical ribs + S-shaped horizontal ribs);

[0035] Figure 4 yes Figure 1 An enlarged schematic diagram of alternative embodiment 2 (straight vertical ribs + inclined horizontal ribs).

[0036] Figure 5 It is a schematic diagram of local stress simulation of the present invention (interval strength analysis diagram caused by the horizontal reinforcement spacing size and the vertical reinforcement spacing size, the larger the value, the greater the local stress and the lower the strength);

[0037] Figure 6 It is a schematic diagram of the plastic deformation simulation of the present invention (an impact strength analysis diagram caused by the thickness of the transverse reinforcement material and the spacing between the vertical reinforcements; the larger the value, the greater the plastic deformation and the lower the strength).

[0038] The reference numerals are:

[0039] 1. Main board; 2. First rib; 3. Second rib; 4. Ventilation hole; 5. First side end; 6. Second side end; 7. Third side end; 8. Fourth side end; 9. Spacing space; 91. Ventilation space. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0042] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0043] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0044] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0046] like Figure 1-6 As shown, the present invention provides a grid structure, which includes:

[0047] The first ribs 2 and the second ribs 3, the number of the first ribs 2 being at least two, and a spacing space 9 being formed between two adjacent first ribs 2, the second ribs 3 being arranged in the spacing space 9, and the second ribs 3 being connected between two adjacent first ribs 2, the number of the spacing spaces 9 being at least two, the number of the second ribs 3 being at least two, and at least one second rib 3 being arranged in one of the spacing spaces 9, and in two adjacent spacing spaces 9, the second rib 3 in one spacing space 9 is not opposite to the second rib 3 in the other spacing space 9, forming a staggered arrangement, and the minimum spacing between two adjacent first ribs 2 is 5 to 8 mm.

[0048] The present invention sets the grille structure to include a first rib and a second rib, and there are at least two first ribs, and a spacing space is formed between the two first ribs to allow wind to pass through, and a second rib is set in the spacing space, and the second ribs of two adjacent spacing spaces are not opposite, thereby forming a staggered arrangement, and the minimum spacing between two adjacent first ribs is 5 to 8 mm, forming a structural combination. Compared with the existing single staggered ribs and single spacing dimensions, the present invention greatly reduces local stress, improves the overall spacing strength and impact strength, and improves the structural strength of the grille structure. At the same time, it can also reduce the use of materials, reduce the product weight of the air outlet grille, reduce costs, and improve aesthetics. Figure 5 shown.

[0049] In some embodiments,

[0050] At least two second ribs 3 are arranged in the same spacing space 9, and the minimum distance between two adjacent second ribs 3 in the same spacing space 9 is 40-60 mm.

[0051] The present invention further provides that the minimum spacing between two adjacent second ribs in the same spacing space is 40 to 60 mm, which can be integrated with the minimum spacing of the first ribs of 5 to 8 mm and the structure of the staggered second ribs to further form a structural combination. Compared with the existing single staggered ribs and single spacing dimensions, the local stress is further reduced, the overall spacing strength and impact strength are improved, and the structural strength of the grille structure is further improved. At the same time, the use of materials can be reduced, the product weight of the air outlet grille is reduced, the cost is reduced, and the aesthetics is improved. Figure 6 shown.

[0052] In some embodiments,

[0053] The material of the second rib 3 is ABS material or PP material. When the material of the second rib 3 is ABS material, the interval between two adjacent second ribs 3 in the same spacing space 9 is 50-60 mm. When the material of the second rib 3 is PP material, the interval between two adjacent second ribs 3 in the same spacing space 9 is 40-50 mm.

[0054] The staggered structure of the air grille of the present invention has the function / role of being one of the main appearance parts of the product in the scheme, has the function of guiding airflow, has a certain strength, protects users from touching the internal moving parts and live parts of the whole product when using it, and protects the product from being damaged by bumps during transportation. The setting position is the appearance part of the product, which is set at the air outlet; the basic attribute is a plastic material part, which is injection molded with a certain strength. The relationship with other parts is that it is installed and fixed on the product shell, and forms an assembly with other parts to guide the airflow and protect the product; the relationship between the position of the vertical ribs on the air grille and the position of the horizontal ribs of other parts (the horizontal ribs (second ribs) of ABS materials are spaced 50-60mm, and the horizontal ribs (second ribs) of PP materials are spaced 40-50mm; the vertical ribs (first ribs) are spaced 5-8mm) is the key feature to solve the problem of part structural strength. The reason for this setting is due to the strength properties of plastic materials; compared with the prior art, this setting can bring about the subsequent guidance of the design of the air grille structure and ensure the beneficial effect of the strength of product parts. Figure 5-6 shown.

[0055] In some embodiments,

[0056] There are multiple first ribs 2, and the multiple first ribs 2 are arranged in sequence along the first direction to form multiple spacing spaces 9 arranged in sequence along the first direction. There are multiple second ribs 3, and the multiple second ribs 3 are arranged in sequence in an alternating manner along the first direction.

[0057] This is a structural form of further staggered arrangement of multiple second ribs of the present invention, that is, in the arrangement direction of multiple first ribs, multiple second ribs are staggered in sequence, which can further improve the spacing strength and impact strength of the overall structure of the grid structure, and further improve the structural strength of the grid structure.

[0058] In some embodiments,

[0059] At least two second ribs 3 are arranged in the same spacing space 9 , and at least two second ribs 3 in the same spacing space 9 are arranged at intervals along a second direction, and the second direction is different from the first direction.

[0060] This is a further preferred structural form of the second rib of the present invention, that is, the first rib and the second rib are arranged in different directions respectively, and the second rib is connected between two adjacent first ribs, which can improve the spacing strength between adjacent first ribs. At the same time, combined with its staggered structure and spacing size setting, it can improve the spacing strength and impact strength, reduce local stress, improve the overall strength of the grille structure, and improve the aesthetics.

[0061] In some embodiments,

[0062] The first direction is perpendicular to the second direction. The length of the second rib 3 extends in the first direction, and the length of the first rib 2 extends in the second direction.

[0063] The extension direction of the first rib of the present invention is preferably along the arrangement direction of the second rib, and the extension direction of the second rib is preferably along the arrangement direction of the first rib, and the first direction is preferably arranged perpendicular to the second direction, which can further improve the aesthetics while improving the bonding strength between the two ribs, and further improve the spacing strength and impact strength.

[0064] In some embodiments,

[0065] The distance between two adjacent first ribs 2 is equal, forming an equidistant arrangement; the distance between two adjacent second ribs 3 in the same spacing space 9 is equal, forming an equidistant arrangement.

[0066] The present invention can further improve the aesthetics of the grille structure by arranging the first ribs at equal intervals and the second ribs at equal intervals, while also improving the uniformity of local stress of the overall structure, further improving the spacing strength and impact strength, and improving the structural strength of the overall grille.

[0067] In some embodiments,

[0068] It also includes a main board 1, a ventilation hole 4 is opened in the center of the main board 1, at least two of the first ribs 2 are arranged at the ventilation hole 4, the main board 1 includes a first side end 5 and a second side end 6 opposite to each other, the ventilation hole 4 is located between the first side end 5 and the second side end 6, one end of the first rib 2 is connected to the first side end 5, and the other end extends to be connected to the second side end 6, the main board 1 also includes a third side end 7 and a fourth side end 8 opposite to each other, the ventilation hole 4 is located between the third side end 7 and the fourth side end 8, the minimum spacing between the first rib 1 and the third side end 7 is 5 to 8 mm, the minimum spacing between the first rib 1 and the fourth side end 8 is 5 to 8 mm, and there is also a ventilation space 91 between the third side end 7 and the first rib 2, and between the fourth side end 8 and the first rib 2, a second rib 3 is also arranged in the ventilation space 91, and at least two of the second ribs 3 are arranged in the same ventilation space 91, and the minimum spacing between two adjacent second ribs 3 in the same ventilation space 91 is 40 to 60 mm.

[0069] The present invention further includes a main board structure in the grille structure, and second ribs are further arranged between the third side end of the main board structure and the first rib, and between the fourth side end and the first rib, and the minimum spacing between the first rib 1 and the third side end 7 is 5 to 8 mm, and the minimum spacing between the first rib 1 and the fourth side end 8 is 5 to 8 mm, so that the staggered second ribs and the minimum spacing of 5 to 8 mm can produce a linkage effect in the structure, reduce local stress, improve the overall spacing strength and impact strength, improve the structural strength of the grille structure, and improve the aesthetics; the minimum spacing between two adjacent second ribs 3 in the same ventilation space 91 is 40 to 60 mm, which can be integrated with the structure with the minimum spacing of 5 to 8 mm and the staggered second ribs to further form a structural combination. Compared with the existing single staggered ribs and single spacing dimensions, local stress is further reduced, the overall spacing strength and impact strength are improved, and the structural strength of the grille structure is further improved. Figure 5 shown.

[0070] In some embodiments,

[0071] The material of the second rib 3 is ABS material or PP material. When the material of the second rib 3 is ABS material, the interval between two adjacent second ribs 3 in the same ventilation space 91 is 50-60 mm. When the material of the second rib 3 is PP material, the interval between two adjacent second ribs 3 in the same ventilation space 91 is 40-50 mm.

[0072] The staggered structure of the air grille of the present invention has the function / role of being one of the main appearance parts of the product in the scheme, has the function of guiding airflow, has a certain strength, protects users from touching the internal moving parts and live parts of the whole product when using it, and protects the product from being damaged by bumps during transportation. The setting position is the appearance part of the product, and is set at the air outlet; the basic attribute is a plastic material part, which is injection molded with a certain strength. The relationship with other parts is that it is installed and fixed on the product shell, and forms an assembly with other parts to guide the airflow and protect the product; the relationship between the vertical rib position on the air grille and the horizontal rib position of other parts (the horizontal rib spacing of ABS materials is 50-60mm, and the horizontal rib spacing of PP materials is 40-50mm; the vertical rib spacing is 5-8mm) is the key feature to solve the problem of part structural strength. The reason for this setting is due to the strength properties of plastic materials; compared with the prior art, this setting can bring about the subsequent guidance of the air grille structure design and ensure the beneficial effect of the strength of product parts. Figure 5-6 shown.

[0073] This embodiment provides a staggered structure of the air grille, in which the vertical ribs and the horizontal ribs are staggered with equal spacing, and the vertical rib spacing and the horizontal rib spacing are reasonably set. The structural design is optimized by finite element analysis to ensure that the maximum deformation of the air grille is controlled within the allowable range when subjected to a predetermined wind pressure. The injection molding process is used for production to ensure the accuracy and consistency of the product.

[0074] In some embodiments,

[0075] In the same ventilation space 91, the spacing between two adjacent second ribs 3 is equal, forming an equidistant arrangement; or the spacing between two adjacent second ribs 3 from the first side end 5 to the second side end 6 is equal, forming an equidistant arrangement in the entire ventilation area.

[0076] This is the preferred arrangement form of multiple second ribs in the same ventilation space of the present invention, which can form an equidistant distribution, thereby further improving the uniformity of the grille structure in bearing local stress, further improving the spacing strength and impact strength, improving the overall structural strength of the grille structure, and at the same time improving the aesthetics.

[0077] In some embodiments,

[0078] The first rib 2 is a straight plate rib or an arc-shaped plate rib, and the second rib 3 is a straight plate rib or an arc-shaped plate rib. This is the preferred structural form of the first and second ribs of the present invention, which can further improve the aesthetics of the grid structure.

[0079] The present invention also provides a tower fan, which comprises the above-mentioned grille structure.

[0080] The present invention is not limited to the tower fan structure, and can also be an electrical appliance with air outlet function such as an air conditioner, a fan, an air purifier, and an air dehumidifier.

[0081] The present invention achieves a comprehensive improvement in aesthetics, structural strength and cost control through the optimized design of the horizontal and vertical ribs of the air outlet grille. The specific effects are as follows:

[0082] 1. The structural strength is guaranteed, which prolongs the service life of the product and reduces maintenance costs.

[0083] 2. The aesthetics is significantly improved, enhancing the market competitiveness of the product.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A grid structure, characterized in that: include: A first rib (2) and a second rib (3), wherein the number of the first ribs (2) is at least two, and a spacing space (9) is formed between two adjacent first ribs (2), the second rib (3) is arranged in the spacing space (9), and the second rib (3) is connected between two adjacent first ribs (2), the number of the spacing spaces (9) is also at least two, the number of the second ribs (3) is also at least two, and at least one second rib (3) is arranged in one of the spacing spaces (9), in two adjacent spacing spaces (9), the second rib (3) in one spacing space (9) is not opposite to the second rib (3) in the other spacing space (9), forming a staggered arrangement, and the minimum spacing between two adjacent first ribs (2) is 5 to 8 mm.

2. The grid structure according to claim 1, characterized in that: At least two second ribs (3) are arranged in the same spacing space (9), and the minimum spacing between two adjacent second ribs (3) in the same spacing space (9) is 40 to 60 mm.

3. The grid structure according to claim 2, characterized in that: The material of the second rib (3) is ABS material or PP material. When the material of the second rib (3) is ABS material, the interval between two adjacent second ribs (3) in the same spacing space (9) is 50-60 mm. When the material of the second rib (3) is PP material, the interval between two adjacent second ribs (3) in the same spacing space (9) is 40-50 mm.

4. The grid structure according to claim 1, characterized in that: There are a plurality of first ribs (2), and the plurality of first ribs (2) are sequentially arranged at intervals along a first direction to form a plurality of spacing spaces (9) sequentially arranged at intervals along the first direction; there are a plurality of second ribs (3), and the plurality of second ribs (3) are sequentially arranged in an alternating manner along the first direction.

5. The grid structure according to claim 4, characterized in that: At least two second ribs (3) are arranged in the same spacing space (9), and at least two of the second ribs (3) in the same spacing space (9) are arranged at intervals along a second direction, and the second direction is different from the first direction.

6. The grid structure according to claim 5, characterized in that: The first direction is perpendicular to the second direction, the length extension direction of the second rib (3) is along the first direction, and the length extension direction of the first rib (2) is along the second direction.

7. The grid structure according to claim 1, characterized in that: The spacing between two adjacent first ribs (2) is equal, forming an equidistant arrangement; the spacing between two adjacent second ribs (3) in the same spacing space (9) is equal, forming an equidistant arrangement.

8. The grid structure according to any one of claims 1 to 7, characterized in that: It also comprises a main board (1), a ventilation opening (4) is provided in the center of the main board (1), at least two of the first ribs (2) are arranged at the ventilation opening (4), the main board (1) comprises a first side end (5) and a second side end (6) opposite to each other, the ventilation opening (4) is located between the first side end (5) and the second side end (6), one end of the first rib (2) is connected to the first side end (5), and the other end extends to be connected to the second side end (6), the main board (1) also comprises a third side end (7) and a fourth side end (8) opposite to each other, the ventilation opening (4) is located between the third side end (7) and the fourth side end (8), The minimum spacing between the first rib (1) and the third side end (7) is 5 to 8 mm, the minimum spacing between the first rib (1) and the fourth side end (8) is 5 to 8 mm, and there is also a ventilation space (91) between the third side end (7) and the first rib (2), and between the fourth side end (8) and the first rib (2), and a second rib (3) is also arranged in the ventilation space (91), and at least two second ribs (3) are arranged in the same ventilation space (91), and the minimum spacing between two adjacent second ribs (3) in the same ventilation space (91) is 40 to 60 mm.

9. The grid structure according to claim 8, characterized in that: The material of the second rib (3) is ABS material or PP material. When the material of the second rib (3) is ABS material, the interval between two adjacent second ribs (3) in the same ventilation space (91) is 50-60 mm. When the material of the second rib (3) is PP material, the interval between two adjacent second ribs (3) in the same ventilation space (91) is 40-50 mm.

10. The grid structure according to claim 8, characterized in that: In the same ventilation space (91), the spacing between two adjacent second ribs (3) is equal, forming an evenly spaced arrangement; or in the direction from the first side end (5) to the second side end (6), the spacing between two adjacent second ribs (3) is equal, forming an evenly spaced arrangement in the entire ventilation opening area.

11. The grid structure according to any one of claims 1 to 10, characterized in that: The first ribs (2) are straight plate ribs or arc-shaped plate ribs, and the second ribs (3) are straight plate ribs or arc-shaped plate ribs.

12. A tower fan, characterized in that: The invention comprises the grid structure according to any one of claims 1 to 11.

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