Fan structure and electronic equipment

Abstract

The utility model provides a fan structure and electronic equipment, and relates to the technical field of heat dissipation. The fan structure comprises a central structure and a fan structure, the fan blades are distributed on the periphery of the center structure in the circumferential direction, the center structure is used for driving the fan blades to rotate synchronously, each fan blade comprises a first edge and a second edge, the first edge protrudes relative to the second edge, the fan blades comprise the fan blades in the first form, and the fan blades in the second form protrude relative to the second edge. According to the first-form fan blade, at least one sawtooth-shaped structure sunken relative to the first edge is arranged in a first area of the first edge, a second area of the first edge is arranged to be of a smooth structure, and the first area is adjacent to the second area.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation technology, and in particular to a fan structure and an electronic device. Background Art

[0002] At present, the optimization of fan noise has always been the focus and difficulty of fan design. Since the various characteristics of the fan are interrelated, the fan blades with good noise performance often have poor performance.

[0003] Therefore, how to design a fan blade that optimizes noise while ensuring performance is not compromised has become a difficult problem. Utility Model Content

[0004] The purpose of this application is to provide a fan structure and an electronic device.

[0005] In order to solve the above technical problems, the embodiments of the present application provide the following technical solutions:

[0006] A first aspect of the present application provides a fan structure, comprising:

[0007] Central structure;

[0008] A plurality of fan blades are circumferentially distributed on the periphery of the central structure, the central structure is used to drive the plurality of fan blades to rotate synchronously, each of the fan blades includes a first edge and a second edge, the first edge is protruding relative to the second edge, the plurality of fan blades include first-shaped fan blades, the first-shaped fan blades include: a first area of ​​the first edge is provided with at least one serrated structure recessed relative to the first edge, the second area of ​​the first edge is provided with a smooth structure, and the first area is adjacent to the second area.

[0009] In some modified implementations of the first aspect of the present application, there are multiple sawtooth structures, and the multiple sawtooth structures are spaced apart along the length direction of the first side, and the length of the sawtooth structure along the first side and the distance between two adjacent sawtooth structures meet the same condition.

[0010] In some modified implementations of the first aspect of the present application, the distance between two adjacent sawtooth structures is proportional to the height of the fan blade;

[0011] The blade height is the radius difference between the concentrically arranged central structure and the outer circumference formed by the plurality of blades.

[0012] In some modified embodiments of the first aspect of the present application, the first edge includes a first part and a second part, the connection between the first part and the second part protrudes relative to the second edge, the first part is a smooth structure, and the end of the first part away from the central structure is connected to the second edge, and the second part includes a smooth structure and a serrated structure.

[0013] In some modified implementations of the first aspect of the present application, the plurality of blades include a plurality of first-shaped blades, and the plurality of first-shaped blades are arranged at intervals; or

[0014] The plurality of fan blades are all first-form fan blades, and the plurality of first-form fan blades are arranged adjacent to each other.

[0015] In some modified implementations of the first aspect of the present application, the depth of the sawtooth structure is proportional to the blade height.

[0016] In some modified implementations of the first aspect of the present application, the multiple serrated structures on each of the first-shaped fan blades are the same or different.

[0017] In some modified implementations of the first aspect of the present application, the sawtooth structure is one or more of an equilateral triangle, an isosceles trapezoid and an arc-shaped structure.

[0018] In some modified implementations of the first aspect of the present application, no serrated structure is provided on the second side.

[0019] A second aspect of the present application provides an electronic device, including:

[0020] Central structure;

[0021] A plurality of blades, wherein the plurality of blades are circumferentially distributed on the periphery of the central structure, each of the blades comprises a first side and a second side, the first side is convex relative to the second side, and the plurality of blades comprises a blade of a first shape, wherein the blade of the first shape comprises: a first region of the first side is provided with at least one sawtooth structure that is concave relative to the first side, a second region of the first side is provided with a smooth structure, and the first region is adjacent to the second region;

[0022] The control module is used to control the rotation of the central structure so that the central structure drives the plurality of fan blades to rotate synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become easy to understand. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0024] Figure 1 A schematic diagram of a fan structure provided in an embodiment of the present application is schematically shown;

[0025] Figure 2 A schematic diagram of the structure of another fan structure provided in an embodiment of the present application is schematically shown;

[0026] Figure 3 A diagram schematically shows a comparison of the static air pressure of a fan structure provided in an embodiment of the present application and a fan structure in the related art;

[0027] Description of Figure Numbers:

[0028] Fan structure 1, central structure 11, fan blade 12, first edge 121, first part 1211, second part 1222, second edge 122, first shape fan blade 123, first area 1231, serrated structure 12311, second area 1232. DETAILED DESCRIPTION

[0029] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0030] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0031] like Figure 1 and Figure 2 As shown, the present application provides a fan structure 1, comprising:

[0032] Central structure 11;

[0033] A plurality of fan blades 12 are circumferentially distributed on the periphery of the central structure 11, and the central structure 11 is used to drive the plurality of fan blades 12 to rotate synchronously, each of the fan blades 12 includes a first edge 121 and a second edge 122, and the first edge 121 protrudes relative to the second edge 122. The plurality of fan blades 12 include a first-shaped fan blade 12312, and the first-shaped fan blade 12312 includes: a first area 1231 of the first edge 121 is provided with at least one serrated structure 12311 recessed relative to the first edge 121, and a second area 1232 of the first edge 121 is provided with a smooth structure, and the first area 1231 is adjacent to the second area 1232.

[0034] A fan structure 1 provided in an embodiment of the present application includes a central structure 11 and a plurality of blades 12, wherein the central structure 11 is provided with a plurality of blades 12 along a circumferential direction, and the central structure 11 includes a motor for driving the plurality of blades 12 to rotate synchronously. Each blade 12 includes a first side 121 and a second side 122, wherein the first side 121 and the second side 122 are connected on a side away from the central structure 11, wherein the first side 121 protrudes relative to the second side 122, and during operation of the fan structure 1, the direction of the airflow is from the second side 122 to the first side 121. The plurality of blades 12 include a first-shaped blade 12312, wherein the first side 121 of the first-shaped blade 12312 includes a first region 1231 and a second region 1232 arranged adjacent to each other, wherein the first region 1231 has a serrated structure 12311 that is recessed relative to the first side 121, and the second region 1232 is a smooth structure. Therefore, in the process of the central structure 11 driving the fan structure 1 to rotate, since the first edge 121 of the first-form fan blade 12312 has a first area 1231 of a serrated structure 12311, in the first area 1231, due to the setting of the serrated structure 12311, the path of the airflow from the second edge 122 to the first edge 121 becomes shorter, thereby accelerating the flow on the surface of the trailing edge fan blade 12, suppressing flow separation, and breaking the inherent fluctuation frequency of the fan airflow, thereby improving the performance of the fan under the same noise.

[0035] Therefore, the fan structure 1 provided in the present application improves the performance of the fan structure 1 without increasing the noise by providing the first-shaped fan blade 12312 whose first edge 121 has a serrated structure 12311 among the plurality of fan blades 12. Compared with the fan structure 1 with the same performance, the noise is reduced.

[0036] like Figure 3, which is a comparison diagram of the fan structure 1 provided by the present application and the fan structure 1 in the related art. In the figure, the dotted line (1) represents the fan structure in the related art, and the solid line (2) represents the fan structure in the present application. The x-axis is the air flow rate, and the y-axis is the static pressure of the air. The static pressure of the air represents the ability to overcome environmental resistance, that is, the air supply capacity of the fan structure 1. Figure 2 It can be obtained that the fan structure 1 provided in the present application, in which each fan blade 12 is provided with three serrated structures 12311 in the first area 1231, generates an air static pressure greater than that of the fan structure 1 in the related technology under the condition of the same air flow rate, thereby proving that the technical solution defined in the present application improves the performance of the fan structure 1.

[0037] like Figure 1 As shown, in the embodiment of the present application, there are multiple sawtooth structures 12311, and the multiple sawtooth structures 12311 are arranged at intervals along the length direction of the first edge 121, and the length of the sawtooth structure 12311 along the first edge 121 and the distance between two adjacent sawtooth structures 12311 meet the same conditions.

[0038] In this embodiment, a plurality of serrated structures 12311 are arranged at intervals along the first edge 121 in the first area 1231 of the first edge 121 of the first form blade 12312, so that in the first area 1231 of the first edge 121, a plurality of paths are shortened in the path of airflow from the second edge 122 to the first edge 121, so that the plurality of paths accelerate the flow on the surface of the trailing edge portion of the blade 12, further suppress flow separation, and further break the inherent fluctuation frequency of the fan airflow, thereby further improving the performance of the fan under the same noise.

[0039] In this embodiment, the distance between two adjacent serrated structures 12311 is the same, and the length of the serrated structure 12311 on the first side 121 is the same as the distance between the two adjacent serrated structures 12311, so that the area where the flow on the surface of the accelerating blade 12 is the same as the area where the flow on the surface of the adjacent non-accelerating blade 12 is made to be the same, and at the same time, the inherent fluctuation frequency of the fan airflow can be regularly broken, thereby further improving the performance of the fan under the same noise.

[0040] In this embodiment, the lengths of two adjacent sawtooth structures 12311 may also be different. In the same first-shaped blade 12312, the lengths of two sawtooth structures 12311 on the first side 121 may also be different.

[0041] In the embodiment of the present application, the distance between two adjacent sawtooth structures 12311 is proportional to the height of the fan blade 12;

[0042] The blade height is the radius difference between the concentrically arranged central structure 11 and the outer circumference formed by the plurality of blades 12 .

[0043] In this embodiment, the fan structure 1 includes a central structure 11 and a plurality of blades 12 arranged along the circumference of the central structure 11. The central structure 11 is a circular structure. The plurality of blades 12 arranged along the circumference of the central structure 11 form an outer circle concentric with the central structure 11. The difference between the radius of the outer circle and the radius of the central structure 11 is the leaf height of the blade 12. Figure 2 As shown, Figure 2 Where d is the blade height. The distance between two adjacent sawtooth structures 12311 is proportional to the blade height, that is, the larger the value of the blade height is, the larger the spacing between two adjacent sawtooth structures 12311 is, and the smaller the value of the blade height is, the smaller the spacing between two adjacent sawtooth structures 12311 is. The distance between two adjacent sawtooth structures 12311 is equal to the length of the sawtooth structure 12311 along the first side 121, so the blade height is also proportional to the length of the sawtooth structure 12311 along the first side 121. Therefore, for different fan structures 1, different spacings between two adjacent sawtooth structures 12311 and different lengths of sawtooth structures 12311 along the first side 121 can be set to adapt to fan structures 1 of different sizes, that is, the spacing between two adjacent sawtooth structures 12311 and different lengths of sawtooth structures 12311 along the first side 121 can be scaled proportionally according to the size of the fan structure 1, thereby ensuring the performance of the fan.

[0044] like Figure 1 As shown, in the embodiment of the present application, the first edge 121 includes a first part 1211 and a second part 1212, the connection between the first part 1211 and the second part 1212 protrudes relative to the second edge 122, the first part 1211 is a smooth structure, and the end of the first part 1211 away from the central structure 11 is connected to the second edge 122, and the second part 1212 includes a smooth structure and a serrated structure 12311.

[0045] In this embodiment, the fan blade 12 includes a first edge 121 and a second edge 122, the first edge 121 includes a first part 1211 and a second part 1212, the connection between the first part 1211 and the second part 1212 is a protruding position relative to the second edge 122, the first part 1211 is equivalent to the second part 1212 being arranged away from the central structure 11, and the end of the second part 1212 away from the central structure 11 is connected to the second edge 122, the second part 1212 is a smooth structure, and the second part 1212 includes a smooth structure and a first area 1231 with a serrated structure 12311, and a serrated structure 12311 is arranged in the first area 1231 of the second part 1212. Due to the arrangement of the serrated structure 12311, the path of the airflow from the second edge 122 to the first edge 121 becomes shorter, thereby accelerating the flow on the surface of the fan blade 12 at the trailing edge, suppressing flow separation, and breaking the inherent fluctuation frequency of the fan airflow, thereby improving the performance of the fan under the same noise.

[0046] In this embodiment, a first area 1231 is provided in the first part 1211, and the first area 1231 has a serrated structure 12311, and the first area 1231 is arranged on a side of the first part 1211 close to the central structure 11, and the range of the first area 1231 on the first part 1211 is 0-1 / 2 blade height, and the serrated structure 12311 may or may not be provided within the range of 1 / 2-1. The 1 / 2-1 blade height range of the first part 1211 is the mainstream area of ​​the fan airflow, and the airflow mainly exits the working area, while the 0-1 / 2 blade height range is not the mainstream area of ​​the fan working, so that the serrated structure 12311 is provided in this area, which has little effect on the working area, so that the flow on the surface of the trailing edge part of the fan blade 12 can be accelerated without affecting the workmanship, thereby suppressing flow separation and breaking the inherent fluctuation frequency of the fan airflow, thereby improving the performance of the fan under the same noise.

[0047] like Figure 1 As shown, in the embodiment of the present application, the plurality of blades 12 include a plurality of first-shaped blades 12312, and the plurality of first-shaped blades 12312 are arranged at intervals; or

[0048] The plurality of fan blades 12 are all first-form fan blades 12312 , and the plurality of first-form fan blades 12312 are arranged adjacent to each other.

[0049] In this embodiment, the plurality of fan blades 12 include a plurality of first-form fan blades 12312, and the plurality of first-form fan blades 12312 are arranged at intervals, that is, each first-form fan blade 12312 is arranged adjacent to the ordinary fan blade 12, and a serrated structure 12311 is provided in the first-form fan blade 12312, so that in the first-form fan blades 12312 arranged at intervals, in the first area 1231, the path of the airflow from the second edge 122 to the first edge 121 becomes shorter, thereby accelerating the flow on the surface of the trailing edge part of the fan blade 12, suppressing flow separation, and breaking the inherent fluctuation frequency of the fan airflow, thereby improving the performance of the fan under the same noise.

[0050] In this embodiment, the multiple fan blades 12 arranged in the circumference of the central structure 11 are all first-form fan blades 12312, that is, the multiple first-form fan blades 12312 are arranged adjacent to each other, so that each fan blade 12 has a serrated structure 12311 in the first area 1231. In the area corresponding to the serrated structure 12311, the path of the airflow from the second edge 122 to the first edge 121 becomes shorter, thereby accelerating the flow on the surface of the trailing edge part of the fan blade 12, suppressing flow separation, and breaking the inherent fluctuation frequency of the fan airflow, thereby further improving the performance of the fan under the same noise.

[0051] In the embodiment of the present application, the depth of the sawtooth structure 12311 is proportional to the blade height.

[0052] In this embodiment, the fan structure 1 includes a central structure 11 and a plurality of blades 12 arranged along the circumference of the central structure 11. The central structure 11 is a circular structure. The plurality of blades 12 arranged along the circumference of the central structure 11 form an outer circle concentric with the central structure 11. The difference between the radius of the outer circle and the radius of the central structure 11 is the blade height of the blade 12. The depth of the serrated structure 12311 is proportional to the blade height, that is, the greater the value of the blade height, the greater the depth of the serrated structure 12311, and the smaller the value of the blade height, the smaller the depth of the serrated structure 12311. Therefore, for different fan structures 1, serrated structures 12311 of different depths can be set to adapt to fan structures 1 of different sizes, that is, the depth of the serrated structure 12311 can be scaled proportionally according to the size of the fan structure 1, thereby ensuring the performance of the fan.

[0053] In the embodiment of the present application, the multiple serrated structures 12311 on each of the first-shaped fan blades 12312 are the same or different.

[0054] In this embodiment, the first-form fan blade 12312 has a plurality of serrated structures 12311 . On the same first-form fan blade 12312 , the shapes of the plurality of serrated structures 12311 may be the same, thereby making the appearance of the fan blade 12 more beautiful.

[0055] In this embodiment, the first-form fan blade 12312 has a plurality of serrated structures 12311 . On the same first-form fan blade 12312 , the shapes of the plurality of serrated structures 12311 may be different, so that the appearance of the fan structure 1 is more specific and individual.

[0056] In this embodiment, the central structure 11 is provided with a plurality of blades 12 along the circumferential direction, and the plurality of blades 12 include a plurality of first-form blades 12312 . The serrated structures 12311 on different first-form blades 12312 have the same shape, so that the appearance of the fan structure 1 is neat and uniform.

[0057] In this embodiment, the central structure 11 is provided with a plurality of blades 12 along the circumferential direction, and the plurality of blades 12 include a plurality of first-form blades 12312. The shapes of the serrated structures 12311 on different first-form blades 12312 are different, so that different blades 12 can be distinguished according to the serrated structures 12311 of different shapes, and the appearance of the fan structure 1 is more personalized.

[0058] In the embodiment of the present application, the sawtooth structure 12311 is one or more of an equilateral triangle, an isosceles trapezoid and an arc-shaped structure.

[0059] In this embodiment, serrated structures 12311 of different shapes can be set according to needs to distinguish different fan blades 12, or to facilitate the formation of first-form fan blades 12312 through different molds, which is beneficial to production and application.

[0060] In the embodiment of the present application, the second edge 122 is not provided with the sawtooth structure 12311 .

[0061] In this embodiment, each fan blade 12 includes a first edge 121 and a second edge 122, and the first edge 121 and the second edge 122 are connected on a side away from the central structure 11. The first edge 121 protrudes relative to the second edge 122, and the second edge 122 is recessed relative to the first edge 121. During the operation of the fan structure 1, the airflow flows from the second edge 122 to the first edge 121, and no serrated structure 12311 is set on the second edge 122, thereby avoiding deterioration of fan performance.

[0062] In a second aspect, the present application provides an electronic device, comprising a central structure 11, a plurality of fan blades 12 and a control module, wherein the plurality of fan blades 12 are distributed circumferentially on the periphery of the central structure 11, and each of the fan blades 12 comprises a first edge 121 and a second edge 122, wherein the first edge 121 protrudes relative to the second edge 122, and the plurality of fan blades 12 comprise a first-shaped fan blade 12312, wherein the first-shaped fan blade 12312 comprises: a first area 1231 of the first edge 121 is provided with at least one serrated structure 12311 which is recessed relative to the first edge 121, and a second area 1232 of the first edge 121 is provided with a smooth structure, and the first area 1231 is adjacent to the second area 1232; and is used to control the rotation of the central structure 11 so that the central structure 11 drives the plurality of fan blades 12 to rotate synchronously.

[0063] In an embodiment of the present application, an electronic device includes a fan structure 1 and a control module, wherein the fan structure 1 includes a central structure 11 and a plurality of blades 12, and the control module is connected to the central structure 11 to control the rotation of the central structure 11, so that the central structure 11 drives the plurality of blades 12 to rotate synchronously. Each blade 12 includes a first edge 121 and a second edge 122, wherein the first edge 121 and the second edge 122 are connected on a side away from the central structure 11, and the first edge 121 protrudes relative to the second edge 122. During the operation of the fan structure 1, the direction of the airflow is from the second edge 122 to the first edge 121. The plurality of blades 12 include a first-shaped blade 12312, wherein the first edge 121 of the first-shaped blade 12312 includes a first region 1231 and a second region 1232 arranged adjacent to each other, wherein the first region 1231 has a serrated structure 12311 that is recessed relative to the first edge 121, and the second region 1232 is a smooth structure. Therefore, in the process of the central structure 11 driving the fan structure 1 to rotate, since the first edge 121 of the first-form fan blade 12312 has a first area 1231 of a serrated structure 12311, in the first area 1231, due to the setting of the serrated structure 12311, the path of the airflow from the second edge 122 to the first edge 121 becomes shorter, thereby accelerating the flow on the surface of the trailing edge fan blade 12, suppressing flow separation, and breaking the inherent fluctuation frequency of the fan airflow, thereby improving the performance of the fan under the same noise.

[0064] It is understandable that the related features in the above devices can be referenced to each other. In addition, the "first", "second" and the like in the above embodiments are used to distinguish the various embodiments, and do not represent the advantages and disadvantages of the various embodiments.

[0065] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known structures and technologies are not shown in detail so as not to obscure the understanding of this description.

[0066] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fan structure, characterized in that: include: Central structure; A plurality of fan blades are circumferentially distributed on the periphery of the central structure, the central structure is used to drive the plurality of fan blades to rotate synchronously, each of the fan blades includes a first edge and a second edge, the first edge is protruding relative to the second edge, the plurality of fan blades include first-shaped fan blades, the first-shaped fan blades include: a first area of ​​the first edge is provided with at least one serrated structure recessed relative to the first edge, the second area of ​​the first edge is provided with a smooth structure, and the first area is adjacent to the second area.

2. The fan structure according to claim 1, characterized in that: There are a plurality of sawtooth structures, and the plurality of sawtooth structures are spaced apart along the length direction of the first side. The length of the sawtooth structure along the first side and the distance between two adjacent sawtooth structures meet the same condition.

3. The fan structure according to claim 2, characterized in that: The distance between two adjacent sawtooth structures is proportional to the height of the fan blade; The blade height is the radius difference between the concentrically arranged central structure and the outer circumference formed by the plurality of blades.

4. The fan structure according to claim 3, characterized in that: The first edge includes a first part and a second part, the connection between the first part and the second part protrudes relative to the second edge, the first part is a smooth structure, and the end of the first part away from the central structure is connected to the second edge, and the second part includes a smooth structure and a serrated structure.

5. The fan structure according to claim 3, characterized in that: The plurality of blades include a plurality of first-shaped blades, and the plurality of first-shaped blades are arranged at intervals; or The plurality of fan blades are all first-form fan blades, and the plurality of first-form fan blades are adjacently arranged.

6. The fan structure according to claim 3, characterized in that: The depth of the sawtooth structure is proportional to the blade height.

7. The fan structure according to claim 1, characterized in that: The multiple serrated structures of each of the first-shaped fan blades are the same or different.

8. The fan structure according to claim 1, characterized in that: The sawtooth structure is one or more of an equilateral triangle, an isosceles trapezoid and an arc structure.

9. The fan structure according to claim 1, characterized in that: The second side is not provided with a sawtooth structure.

10. An electronic device, characterized in that: include: Central structure; A plurality of blades, wherein the plurality of blades are circumferentially distributed on the periphery of the central structure, each of the blades comprises a first side and a second side, the first side is convex relative to the second side, and the plurality of blades comprises a blade of a first shape, wherein the blade of the first shape comprises: a first region of the first side is provided with at least one sawtooth structure that is concave relative to the first side, a second region of the first side is provided with a smooth structure, and the first region is adjacent to the second region; The control module is used to control the rotation of the central structure so that the central structure drives the plurality of fan blades to rotate synchronously.

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