Mesh cover and fan

Abstract

The invention relates to a mesh enclosure and a fan, and the mesh enclosure comprises a first air supply assembly which comprises at least two air supply grilles, and the air supply grilles are connected into a whole in the circumferential direction of the mesh enclosure; wherein each air supply grille is provided with an air supply main body and at least two first ribs, the first ends of all the first ribs are gathered together and connected to the air supply main body, and the second ends of all the first ribs are arranged at intervals in the circumferential direction of the mesh enclosure; the air supply body is provided with first air guide channels, and a second air guide channel is formed between every two adjacent first ribs. The fan comprises the mesh enclosure. The fan, the first air guide channel and the second air guide channels are sequentially arranged in the radial direction of the mesh enclosure, the second air guide channels are distributed along the mesh enclosure in a scattered mode from the gathering point, airflow distribution is enhanced in the circumferential direction and the radial direction of the mesh enclosure, multi-path airflow flowing is achieved, and wind resistance and operation noise are effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fans, and in particular to a mesh cover and a fan. Background Art

[0002] At present, fans generally use a combination of thin blades and metal or plastic mesh covers, and the fan's air outlet type (wind-gathering or non-wind-gathering type) is changed through the fan's mesh cover to increase wind speed and air volume.

[0003] Due to the high cost of metal mesh covers, they are gradually being replaced by plastic mesh covers. However, plastic mesh covers have the problem of large wind resistance, which will cause a loss of some air volume, resulting in a reduction in the air volume of the fan. Summary of the invention

[0004] Based on this, it is necessary to provide a fan grille and a fan to solve the problem of large wind resistance of the existing fan grille.

[0005] A mesh cover, comprising: a first air supply component, comprising at least two air supply grilles, each of which is connected to each other as a whole along the circumference of the mesh cover; wherein each of the air supply grilles has an air supply body and at least two first ribs, the first ends of all the first ribs are gathered together and connected to the air supply body, and the second ends of all the first ribs are spaced along the circumference of the mesh cover; the air supply body has a first air guide channel, and a second air guide channel is formed between every two adjacent first ribs. In the above-mentioned mesh cover, the first ends of all the first ribs are gathered together and connected to the air supply body, and the second ends of all the first ribs are spaced along the circumference of the mesh cover, that is, the first air guide channel and the second air guide channel are arranged in sequence along the radial direction of the mesh cover, and each second air guide channel is dispersedly distributed along the mesh cover from the gathering point, so as to enhance the airflow distribution in the circumference and radial direction of the mesh cover, realize multi-path airflow, and effectively reduce wind resistance and operating noise.

[0006] In some embodiments, the angle between two adjacent first ribs is δ4, and 30°≤δ4≤70°.

[0007] In some embodiments, the first air guiding channel has a top wall, two first side walls and two second side walls, the two second side walls are arranged at an angle, each second side wall is connected to one first side wall, and the top wall is connected between the two first side walls; the top wall, the two first side walls and the two second side walls enclose the first air guiding channel.

[0008] In some embodiments, an angle formed between two of the second side walls is δ1, and 50°≤δ1≤100°.

[0009] In some embodiments, an angle formed between the second side wall and the first side wall is δ2, 90°≤δ2<180°.

[0010] In some embodiments, an angle formed between the top wall and the first side wall is δ5, 75°≤δ5≤120°.

[0011] In some of the embodiments, in two adjacent air supply grilles, an angle formed between a second side wall of one of the air supply grilles and a second side wall of the other air supply grille is δ3, and 60°≤δ3≤110°.

[0012] In some of the embodiments, in two adjacent air supply grilles, a maximum distance between the second side wall of one of the air supply grilles and the second side wall of the other air supply grille is Φ4, and Φ4≤12 mm.

[0013] In some embodiments, an end of the first air guiding channel close to the second air guiding channel has a first root portion, and a maximum spacing of the first root portions is Φ1, where Φ1≤12 mm.

[0014] In some embodiments, an end of the first air guiding channel away from the second air guiding channel has a first top portion, and a maximum spacing of the first top portions is Φ2, where Φ1≤Φ2≤12 mm.

[0015] In some embodiments, the second air guiding channel has a second top at one end close to the first air guiding channel, and the maximum spacing of the second tops is Φ3, where Φ3≤12 mm.

[0016] In some embodiments, the mesh cover further includes a second air supply component, and the second air supply component is disposed around the outer circumference of each of the first ribs.

[0017] In some embodiments, the second air supply assembly includes at least two second ribs, all of the second ribs are arranged around the outer periphery of each of the first ribs along the circumference of the mesh cover, and a third air guide channel is formed between two adjacent second ribs.

[0018] In some embodiments, each of the second ribs has a first connecting end, the first connecting end is connected to the second rib, and an angle formed between the first connecting end and the axial direction of the mesh cover is θ, 0°≤θ≤25°.

[0019] In some embodiments, each of the second ribs has a second connecting end, the second connecting end is an end away from the second rib, and an angle formed between the second connecting end and the axial direction of the mesh cover is β, 0°≤β≤25°.

[0020] In some embodiments, the mesh cover further includes a third air supply component, and the third air supply component is disposed around the outer periphery of the second air supply component.

[0021] In some embodiments, the third air supply component includes a separating ring, a connecting ring and at least two third ribs. The separating ring is arranged around the periphery of the second air supply component, the connecting ring is arranged around the periphery of the separating ring, each of the third ribs is arranged between the separating ring and the connecting ring, and a fourth air guide channel is formed between two adjacent third ribs.

[0022] In some embodiments, each of the third ribs has a third connecting end, the third connecting end is connected to the separation ring, and an angle formed between the third connecting end and the axial direction of the mesh cover is α1, 0°≤α1≤25°.

[0023] In some embodiments, each of the third ribs further has a fourth connecting end, the fourth connecting end is connected to the connecting ring, and an angle formed between the fourth connecting end and the axial direction of the mesh cover is α2, 10°≤α2≤40°.

[0024] A fan includes the above-mentioned mesh cover. In the above-mentioned fan, the first ends of all the first ribs are gathered together and connected to the air supply body, and the second ends of all the first ribs are arranged at intervals along the circumference of the mesh cover, that is, the first air guide channel and the second air guide channel are arranged in sequence along the radial direction of the mesh cover, and each second air guide channel is dispersedly distributed along the mesh cover from the gathering point, so that the airflow distribution is enhanced in the circumference and radial direction of the mesh cover, multi-path airflow is realized, and wind resistance and operation noise are effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the mesh cover in some embodiments of the present application.

[0026] Figure 2 for Figure 1 A front view of the first air supply assembly and the third air supply assembly in the mesh cover is shown.

[0027] Figure 3 for Figure 2 An axonometric view of the air supply grille in the first air supply assembly is shown.

[0028] Figure 4 for Figure 3 A partial enlarged view of point A of the air supply grille shown.

[0029] Figure 5 for Figure 4 A simplified top view of the air supply grille is shown.

[0030] Figure 6 for Figure 4 A top view of the air supply grille is shown.

[0031] Figure 7 for Figure 1 Axonometric views of the second air supply assembly and the third air supply assembly are shown.

[0032] Figure 8 for Figure 7 A partial enlarged view of point B of the second air supply assembly and the third air supply assembly is shown.

[0033] Fig. 9 for Figure 1 A schematic diagram of the second rib in the second air supply assembly at a first viewing angle is shown.

[0034] Fig.10 for Figure 1 A schematic diagram of the second rib in the second air supply assembly at a second viewing angle is shown.

[0035] Fig.11 for Figure 1 A schematic diagram of a third rib in the third air supply assembly at a first viewing angle is shown.

[0036] Fig.12 for Figure 1 A schematic diagram of the third rib in the third air supply assembly at a second viewing angle is shown.

[0037] Reference numerals:

[0038] 100, first air supply assembly; 110, air supply grille; 111, air supply body; 112, first rib; 112a, first end; 112b, second end; 113, first air guide channel; 113a, top wall; 113b, first side wall; 113c, second side wall; 113d, first root; 113e, first top; 114, second air guide channel; 114a, second top; 115, air passage;

[0039] 200, second air supply assembly; 210, second rib; 211, first connection end; 212, second connection end; 220, third air guide channel;

[0040] 300, third air supply assembly; 310, separation ring; 320, connection ring; 330, third rib; 331, third connection end; 332, fourth connection end; 340, fourth air guide channel. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0042] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In this application, unless otherwise clearly specified and limited, the terms "initial", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0045] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0046] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0047] At present, fans generally use a combination of thin blades and metal or plastic mesh covers, and the fan's air outlet type (wind-gathering or non-wind-gathering type) is changed through the fan's mesh cover to increase wind speed and air volume.

[0048] Due to the high cost of metal mesh covers, they are gradually being replaced by plastic mesh covers. However, plastic mesh covers have the problem of large wind resistance, which will cause a loss of some air volume, resulting in a reduction in the air volume of the fan.

[0049] Based on the above considerations, the present application designs a mesh cover and a fan, in which the first ends of all the first ribs are gathered together and connected to the air supply body, and the second ends of all the first ribs are arranged at intervals along the circumference of the mesh cover, that is, the first air guide channel and the second air guide channel are arranged in sequence along the radial direction of the mesh cover, and each second air guide channel is dispersedly distributed along the mesh cover from a gathering point, thereby enhancing the airflow distribution in the circumferential and radial directions of the mesh cover, realizing multi-path airflow flow, and effectively reducing wind resistance and operating noise.

[0050] Please refer to Figures 1 to 5 The mesh cover in one embodiment includes a first air supply assembly 100, and the first air supply assembly 100 includes at least two air supply grilles 110, and each air supply grille 110 is connected to each other as a whole along the circumference of the mesh cover. Each air supply grille 110 has an air supply body 111 and at least two first ribs 112, and the first ends 112a of all the first ribs 112 are gathered together and connected to the air supply body 111, and the second ends 112b of all the first ribs 112 are arranged at intervals along the circumference of the mesh cover; the air supply body 111 has a first air guide channel 113, and a second air guide channel 114 is formed between every two adjacent first ribs 112.

[0051] It should be noted that the circumference of the mesh cover is Figure 1 and Figure 2 The first end 112a and the second end 112b of the first rib 112 are arranged opposite to each other along the radial direction of the mesh cover, and the radial direction of the mesh cover is Figure 5 Y direction shown.

[0052] Here, the mesh cover is applied to the fan, and the mesh cover is arranged on the air outlet surface of the fan (i.e., the front mesh cover). When the fan is running, since the second air guide channel 114 and the first air guide channel 113 are independent of each other, the air flow can be delivered through the first air guide channel 113 and the second air guide channel 114 respectively.

[0053] In the above-mentioned mesh cover, the first ends 112a of all the first ribs 112 are gathered together and connected to the air supply body 111, and the second ends 112b of all the first ribs 112 are arranged at intervals along the circumference of the mesh cover, that is, the first air guide channels 113 and the second air guide channels 114 are arranged in sequence along the radial direction of the mesh cover, and each second air guide channel 114 is dispersedly distributed along the mesh cover from a gathering point, thereby enhancing the airflow distribution in the circumferential and radial directions of the mesh cover, realizing multi-path airflow, and effectively reducing wind resistance and operating noise.

[0054] In the embodiment of the present application, each air supply grille 110 is an integrated structure, for example, each air supply grille 110 is integrally formed by casting, injection molding, etc., with good integrity and high mechanical strength. The shape and size of each air supply grille 110 are exactly the same, so as to facilitate uniform air supply.

[0055] In the embodiment of the present application, the air supply body 111 and each first rib 112 are an integrated structure, and the air supply body 111 and each first rib 112 can be integrally formed by casting, injection molding, etc., with good integrity and high mechanical strength. Among them, the air supply body 111 is a hollow closed ring structure, and the overall outer contour of the air supply body 111 can be a pentagon, a rhombus, or other shapes.

[0056] In the embodiment of the present application, the shapes and sizes of the first ribs 112 may be completely the same or different. The first ribs 112 may be constructed as a straight structure or a curved structure. The straight structure may be an I-shaped, T-shaped or other straight strip-shaped structure extending along the radial direction of the mesh cover. The curved structure may be a smooth line or a structure with a point of curvature in a water drop shape or a similar shape. In order to maintain the air volume and wind feeling of the first air supply assembly 100, the first ribs 112 are preferably a straight structure.

[0057] In the embodiment of the present application, the air supply areas of the second air guiding channels 114 may be equal or unequal.

[0058] Specifically, please refer to Figure 5 The angle between two adjacent first ribs 112 is δ4, 30°≤δ4≤70°.

[0059] It is understandable that the angle between two adjacent first ribs 112 will affect the size of the second air guide channel 114 and the structural strength of the air supply grille 110. By limiting the angle range between two adjacent first ribs 112, the second air guide channel 114 can smoothly supply air without affecting the structural strength of the air supply grille 110.

[0060] In the embodiment of the present application, the angles formed between every two adjacent first ribs 112 are equal, so that all the first ribs 112 can be evenly distributed along the circumference of the mesh cover, which is beneficial to the uniformity of air supply.

[0061] Please refer to Figure 5 The first air guiding channel 113 has a top wall 113a, two first side walls 113b and two second side walls 113c. The two second side walls 113c are arranged at an angle. Each second side wall 113c is connected to a first side wall 113b. The top wall 113a is connected between the two first side walls 113b. The top wall 113a, the two first side walls 113b and the two second side walls 113c are arranged to form the first air guiding channel 113.

[0062] It should be noted that the top wall 113 a , the two first side walls 113 b and the two second side walls 113 c enclose the first air guiding channel 113 , and the top wall 113 a , the two first side walls 113 b and the two second side walls 113 c are all inner walls of the first air guiding channel 113 .

[0063] In the embodiment of the present application, the two second side walls 113c and the two first side walls 113b may be symmetrically distributed on opposite sides of the top wall 113a, so that the first air guiding channel 113 presents a bilaterally symmetrical structure, which is beneficial to the uniformity of air supply.

[0064] In an embodiment of the present application, the second side wall 113c is also arranged at an angle to the first side wall 113b. The angle between the second side wall 113c and the first side wall 113b can be 0~180°. When the angle between the second side wall 113c and the first side wall 113b is 0 or 180°, there is no angle between the second side wall 113c and the first side wall 113b, that is, the second side wall 113c is parallel to and connected to the first side wall 113b.

[0065] In the embodiment of the present application, the top wall 113a, the two first side walls 113b and the two second side walls 113c may all be planes, or all be curved surfaces, or one part may be a plane and the other part may be a curved surface.

[0066] Specifically, please refer to Figure 5 The included angle between the two second side walls 113c is δ1, 50°≤δ1≤100°.

[0067] Here, the angle formed between the two second side walls 113c is an acute angle or an obtuse angle, so that the intersection of the two second side walls 113c can form a pointed end, which is beneficial to reducing wind resistance and operating noise.

[0068] More specifically, please refer to Figure 5 The included angle between the second side wall 113c and the first side wall 113b is δ2, 90°≤δ2<180°.

[0069] Here, the included angle between the second side wall 113c and the first side wall 113b is an obtuse angle, so that the second side wall 113c and the first side wall 113b are not coplanar, which is conducive to multi-angle air supply.

[0070] More specifically, please refer to Figure 5 The included angle between the top wall 113a and the first side wall 113b is δ5, 75°≤δ5≤120°.

[0071] Here, the included angle between the top wall 113a and the first side wall 113b is an obtuse angle, so that the top wall 113a and the first side wall 113b are not coplanar, which is conducive to multi-angle air supply.

[0072] In the embodiment of the present application, δ1+2*δ2+2*δ5=540°, that is, the first air guiding channel 113 is a pentagon. In other embodiments, δ1+2*δ2+2*δ5 can also be other values, and accordingly, the first air guiding channel 113 is in other shapes.

[0073] Please refer to Figure 5 In two adjacent air supply grilles 110, an angle formed between the second side wall 113c of one air supply grille 110 and the second side wall 113c of the other air supply grille 110 is δ3, and 60°≤δ3≤110°.

[0074] It can be understood that, in two adjacent air supply grilles 110 , an air passage 115 is formed between the second side wall 113 c of one air supply grille 110 and the second side wall 113 c of the other air supply grille 110 .

[0075] Here, since the angle between the second side wall 113c of one air supply grille 110 and the second side wall 113c of the other air supply grille 110 will affect the size of the air passage 115, by limiting the value range of the angle δ3, the air passage 115 can be smoothly supplied with air without affecting the structural strength of the air supply grille 110.

[0076] For further information, please refer to Figure 6 and Figure 5In two adjacent air supply grilles 110, a maximum distance between the second side wall 113c of one air supply grille 110 and the second side wall 113c of the other air supply grille 110 is Φ4, and Φ4≤12 mm.

[0077] Here, since the maximum distance between the second side wall 113c of one air supply grille 110 and the second side wall 113c of the other air supply grille 110 will affect the size of the air passage 115, by limiting the value range of Φ4, the air passage 115 can supply air smoothly without affecting the structural strength of the air supply grille 110.

[0078] Please refer to Figure 6 and Figure 5 One end of the first air guiding channel 113 close to the second air guiding channel 114 has a first root portion 113d and a first top portion 113e, and the maximum spacing of the first root portion 113d is Φ1, and Φ1≤12mm.

[0079] It can be understood that the first root 113d is located at one end of the first air guide channel 113 close to the second air guide channel 114, and the spacing of the first root 113d will affect the air supply area of ​​the end of the first air guide channel 113 close to the second air guide channel 114. By limiting the value range of the maximum spacing of the first root 113d, the air supply area can meet the usage requirements without affecting the structural strength of the air supply grille 110.

[0080] For details about this embodiment, please refer to Figure 6 and Figure 5 The first air guiding channel 113 has a first top portion 113e at one end away from the second air guiding channel 114, and the maximum spacing of the first top portions 113e is Φ2, where Φ1≤Φ2≤12mm.

[0081] It should be noted that the first top portion 113e and the first root portion 113d are arranged opposite to each other along the radial direction of the mesh cover. The spacing of the first top portion 113e will affect the air supply area of ​​the end of the first air guide channel 113 away from the second air guide channel 114. By limiting the value range of the maximum spacing of the first top portion 113e, the air supply area can meet the use requirements without affecting the structural strength of the air supply grille 110.

[0082] Please refer to Figure 6 and Figure 5 The second air guiding channel 114 has a second top portion 114 a at one end close to the first air guiding channel 113 , and the maximum spacing of the second top portions 114 a is Φ3, where Φ3≤12 mm.

[0083] Here, the second top 114a is located at one end of the second air guide channel 114 close to the first air guide channel 113. The spacing of the second top 114a will affect the air supply area of ​​the end of the second air guide channel 114 close to the first air guide channel 113. By limiting the value range of the maximum spacing of the second top 114a, the air supply area can meet the usage requirements without affecting the structural strength of the air supply grille 110.

[0084] Please refer to Figures 1 to 3 The mesh cover further includes a second air supply component 200 , and the second air supply component 200 is disposed around the outer periphery of each first rib 112 .

[0085] It can be understood that the second air supply assembly 200 is disposed around the outer periphery of each first rib 112, which can not only expand the air supply area of ​​the mesh cover, but also enhance the structural strength of the mesh cover.

[0086] In an embodiment of the present application, the number of second air supply components 200 is not limited to one. When the number of second air supply components 200 is at least two, each second air supply component 200 can be sequentially arranged on the outer periphery of all first ribs 112 along the radial direction of the mesh cover, which can further expand the air supply area.

[0087] In an embodiment of the present application, the second air supply component 200 and the first air supply component 100 are an integrated structure with good integrity and high mechanical strength. For example, the second air supply component 200 and the first air supply component 100 can be integrally formed by casting, injection molding, etc.

[0088] Specifically, please refer to Figure 7 and Figure 8 The second air supply assembly 200 includes at least two second ribs 210 , all of which are arranged around the outer periphery of each first rib 112 along the circumference of the mesh cover, and a third air guide channel 220 is formed between two adjacent second ribs 210 .

[0089] In the embodiment of the present application, the shapes and sizes of the second ribs 210 may be completely the same or different. The second ribs 210 may be constructed as a straight structure or a curved structure. The straight structure may be an I-shaped, T-shaped or other straight strip-shaped structure extending along the radial direction of the mesh cover. The curved structure may be a smooth line or a structure with a dotted curvature in a water drop shape or a similar shape. The second ribs 210 are preferably curved structures.

[0090] In the embodiment of the present application, the air supply areas of all the third air guiding channels 220 may be equal or unequal, that is, the shapes of all the third air guiding channels 220 may be the same or different.

[0091] For details about this embodiment, please refer to Fig. 9Each second rib 210 has a first connecting end 211, the first connecting end 211 is connected to the second rib 210, and the angle formed between the first connecting end 211 and the axial direction of the mesh cover is θ, 0°≤θ≤25°.

[0092] It should be noted that the axial direction of the mesh cover is Fig. 9 The Z direction is shown. The design of the angle between the first connection end 211 and the axial direction of the mesh cover should not affect the air supply feeling of the fan, but should also be able to expand the air supply area. By limiting θ to 0°~25°, when the fan is running, the air flow is transmitted to the outside along the end surface of the first connection end 211, which can reduce wind resistance and expand the air supply area.

[0093] In the embodiment of the present application, the angles formed between the first connecting ends 211 of all the second ribs 210 and the axial direction of the mesh cover are equal, so as to facilitate the uniformity of air supply.

[0094] For details about this embodiment, please refer to Fig.10 Each second rib 210 has a second connecting end 212, which is an end away from the second rib 210, and an angle formed between the second connecting end 212 and the axial direction of the mesh cover is β, 0°≤β≤25°.

[0095] It is understandable that the angle between the second connection end 212 and the axial direction of the mesh cover is designed so as not to affect the air supply feeling of the fan and to expand the air supply area. By limiting β to 0°~25°, when the fan is running, the air flow is transmitted to the outside along the end surface of the second connection end 212, which can reduce wind resistance and expand the air supply area.

[0096] In the embodiment of the present application, the angles formed between the second connecting ends 212 of all the second ribs 210 and the axial direction of the mesh cover are equal, so as to facilitate the uniformity of air supply.

[0097] Please refer to Fig.11 and Figure 1 The mesh cover also includes a third air supply component 300 , and the third air supply component 300 is arranged around the outer periphery of the second air supply component 200 .

[0098] It can be understood that the third air supply assembly 300 is disposed around the outer periphery of the second air supply assembly 200, which can not only expand the air supply area of ​​the mesh cover, but also enhance the structural strength of the mesh cover.

[0099] Specifically, please refer to Fig.11The third air supply component 300 includes a separating ring 310, a connecting ring 320 and at least two third ribs 330. The separating ring 310 is arranged around the outer periphery of the second air supply component 200, and the connecting ring 320 is arranged around the outer periphery of the separating ring 310. Each third rib 330 is arranged between the separating ring 310 and the connecting ring 320, and a fourth air guide channel 340 is formed between two adjacent third ribs 330.

[0100] It should be noted that one end of all the third ribs 330 is connected to the separation ring 310 , and the other end of all the third ribs 330 is connected to the connection ring 320 , so that each third rib 330 is disposed between the separation ring 310 and the connection ring 320 .

[0101] In the embodiment of the present application, the shapes and sizes of the third ribs 330 may be completely the same or different. The third ribs 330 may be constructed as a straight structure or a curved structure. The straight structure may be an I-shaped, T-shaped or other straight strip-shaped structure extending along the radial direction of the mesh cover. The curved structure may be a smooth line or a structure with a dotted curvature in a water drop shape or a similar shape. The third ribs 330 are preferably curved structures.

[0102] In the embodiment of the present application, the separation ring 310 and the connection ring 320 are both hollow annular structures, and the annular structure can be a circular ring, an elliptical ring, or an annular structure of other shapes. The central axes of the separation ring 310 and the connection ring 320 are overlapped, that is, the connection ring 320 is coaxially arranged with the separation ring 310, that is, the second air supply assembly 200 is coaxially arranged with the third air supply assembly 300, which is conducive to the uniformity and concentration of air supply.

[0103] In the embodiment of the present application, the separating ring 310, the connecting ring 320 and each second rib 210 are an integrated structure. The separating ring 310, the connecting ring 320 and each second rib 210 can be integrally formed by casting, injection molding, etc., with good integrity and high mechanical strength.

[0104] In the embodiment of the present application, the air supply areas of all the fourth air guiding channels 340 may be equal or unequal, that is, the shapes of all the fourth air guiding channels 340 may be the same or different.

[0105] For details about this embodiment, please refer to Fig.11 Each third rib 330 has a third connecting end 331, the third connecting end 331 is connected to the separation ring 310, and the angle formed between the third connecting end 331 and the axial direction of the mesh cover is α1, 0°≤α1≤25°.

[0106] It should be noted that the design of the angle between the third connection end 331 and the axial direction of the mesh cover should not affect the air supply feeling of the fan, but should be able to expand the air supply area. By limiting α1 to 0°~25°, when the fan is running, the air flow is transmitted to the outside along the end surface of the third connection end 331, which can reduce wind resistance and expand the air supply area.

[0107] In the embodiment of the present application, the angles formed between the third connecting ends 331 of all the third ribs 330 and the axial direction of the mesh cover are equal, so as to facilitate the uniformity of air supply.

[0108] For details about this embodiment, please refer to Fig.12 Each third rib 330 also has a fourth connecting end 332, and the fourth connecting end 332 is connected to the connecting ring 320. The angle between the fourth connecting end 332 and the axial direction of the mesh cover is α2, 10°≤α2≤40°.

[0109] It is understandable that the design of the angle between the fourth connection end 332 and the axial direction of the mesh cover should not affect the air supply feeling of the fan, but should be able to expand the air supply area. By limiting α2 to 10°~40°, when the fan is running, the air flow is transmitted to the outside along the end surface of the fourth connection end 332, which can reduce wind resistance and expand the air supply area.

[0110] In the embodiment of the present application, the angles formed between the fourth connecting ends 332 of all the third ribs 330 and the axial direction of the mesh cover are equal, so as to facilitate the uniformity of air supply.

[0111] Please refer to Figure 1 , a fan in one embodiment includes the above-mentioned mesh cover.

[0112] It should be noted that the above-mentioned fan also includes components such as fan blades, and the mesh cover is arranged outside the fan blades to play a role in protection and air supply.

[0113] In the above-mentioned fan, the first ends 112a of all the first ribs 112 are gathered together and connected to the air supply body 111, and the second ends 112b of all the first ribs 112 are arranged at intervals along the circumference of the mesh cover, that is, the first air guide channels 113 and the second air guide channels 114 are arranged in sequence along the radial direction of the mesh cover, and each second air guide channel 114 is dispersedly distributed along the mesh cover from a gathering point, thereby enhancing the airflow distribution in the circumferential and radial directions of the mesh cover, realizing multi-path airflow, and effectively reducing wind resistance and operating noise.

[0114] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0115] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A mesh cover, characterized in that: include: A first air supply assembly (100) comprises at least two air supply grilles (110), wherein the air supply grilles (110) are interconnected along the circumference of the mesh cover to form a whole; Each of the air supply grilles (110) comprises an air supply body (111) and at least two first ribs (112); the first ends (112a) of all the first ribs (112) are gathered together and connected to the air supply body (111); and the second ends (112b) of all the first ribs (112) are arranged at intervals along the circumference of the mesh cover; the air supply body (111) comprises a first air guide channel (113); and a second air guide channel (114) is formed between every two adjacent first ribs (112).

2. The mesh cover according to claim 1, characterized in that: The included angle between two adjacent first ribs (112) is δ4, 30°≤δ4≤70°.

3. The mesh cover according to claim 1, characterized in that: The first air guiding channel (113) comprises a top wall (113a), two first side walls (113b) and two second side walls (113c); the two second side walls (113c) are arranged at an angle, each of the second side walls (113c) is connected to one of the first side walls (113b), and the top wall (113a) is connected between the two first side walls (113b); The top wall (113a), the two first side walls (113b) and the two second side walls (113c) are arranged to form the first air guide channel (113).

4. The mesh cover according to claim 3, characterized in that: The included angle between the two second side walls (113c) is δ1, and 50°≤δ1≤100°.

5. The mesh cover according to claim 3, characterized in that: An included angle between the second side wall (113c) and the first side wall (113b) is δ2, and 90°≤δ2<180°.

6. The mesh cover according to claim 3, characterized in that: An included angle between the top wall (113a) and the first side wall (113b) is δ5, and 75°≤δ5≤120°.

7. The mesh cover according to claim 3, characterized in that: In two adjacent air supply grilles (110), an angle formed between a second side wall (113c) of one of the air supply grilles (110) and a second side wall (113c) of the other air supply grille (110) is δ3, and 60°≤δ3≤110°.

8. The mesh cover according to claim 3, characterized in that: In two adjacent air supply grilles (110), a maximum distance between a second side wall (113c) of one of the air supply grilles (110) and a second side wall (113c) of the other air supply grille (110) is Φ4, and Φ4≤12 mm.

9. The mesh cover according to claim 1, characterized in that: One end of the first air guiding channel (113) close to the second air guiding channel (114) has a first root portion (113d), and the maximum spacing of the first root portion (113d) is Φ1, where Φ1≤12mm.

10. The mesh cover according to claim 9, characterized in that: One end of the first air guiding channel (113) away from the second air guiding channel (114) has a first top portion (113e), and the maximum spacing of the first top portions (113e) is Φ2, where Φ1≤Φ2≤12 mm.

11. The mesh cover according to claim 1, characterized in that: The second air guiding channel (114) has a second top portion (114a) at one end close to the first air guiding channel (113), and the maximum spacing of the second top portions (114a) is Φ3, where Φ3≤12 mm.

12. The mesh cover according to claim 1, characterized in that: The mesh cover further comprises a second air supply component (200), wherein the second air supply component (200) is arranged around the outer periphery of each of the first ribs (112).

13. The mesh cover according to claim 12, characterized in that: The second air supply assembly (200) comprises at least two second ribs (210), all of the second ribs (210) are arranged around the periphery of each of the first ribs (112) along the circumference of the mesh cover, and a third air guide channel (220) is formed between two adjacent second ribs (210).

14. The mesh cover according to claim 13, characterized in that: Each of the second ribs (210) has a first connecting end (211), the first connecting end (211) being connected to the second rib (210), and an angle formed between the first connecting end (211) and the axial direction of the mesh cover is θ, 0°≤θ≤25°.

15. The mesh cover according to claim 13, characterized in that: Each of the second ribs (210) has a second connecting end (212), the second connecting end (212) being an end away from the second rib (210), and the angle formed between the second connecting end (212) and the axial direction of the mesh cover is β, 0°≤β≤25°.

16. The mesh cover according to claim 12, characterized in that: The mesh cover further comprises a third air supply component (300), wherein the third air supply component (300) is arranged around the outer periphery of the second air supply component (200).

17. The mesh cover according to claim 16, characterized in that: The third air supply component (300) includes a separation ring (310), a connecting ring (320) and at least two third ribs (330), wherein the separation ring (310) is arranged around the outer periphery of the second air supply component (200), the connecting ring (320) is arranged around the outer periphery of the separation ring (310), each of the third ribs (330) is arranged between the separation ring (310) and the connecting ring (320), and a fourth air guide channel (340) is formed between two adjacent third ribs (330).

18. The mesh cover according to claim 17, characterized in that: Each of the third ribs (330) has a third connecting end (331), the third connecting end (331) is connected to the separation ring (310), and the angle formed between the third connecting end (331) and the axial direction of the mesh cover is α1, 0°≤α1≤25°.

19. The mesh cover according to claim 17, characterized in that: Each of the third ribs (330) further comprises a fourth connecting end (332), the fourth connecting end (332) being connected to the connecting ring (320), the angle formed between the fourth connecting end (332) and the axial direction of the mesh cover being α2, 10°≤α2≤40°.

20. A fan, characterized in that: Comprising the mesh cover as described in any one of claims 1-19.

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