Heat dissipation fan and electronic device

Abstract

The application discloses a heat dissipation fan and electronic equipment, the heat dissipation fan includes the casing, the casing is equipped with hollow area and at least one reinforcing structure in hollow area and with the fixed installation of casing, the reinforcing structure is used to reduce the noise caused by pressure and / or flow rate, the casing is equipped with the fan blade with hollow area opposite arrangement, and the hollow area and reinforcing structure composite form the air inlet.The heat dissipation fan of the application increases reinforcing structure in the hollow area of casing, and the reinforcing structure is used to optimize the shape of air inlet, which can effectively reduce the noise caused by pressure and flow rate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of heat dissipation fans, and particularly relates to a heat dissipation fan and electronic equipment. BACKGROUND

[0002] With the improvement of the performance of computer components, the heat generated during operation is also relatively high. Among them, the heat generated by the central processing unit and the data storage device (such as a hard disk) is the highest. If the high heat generated cannot be dissipated in time, it will affect the normal operation performance, and even cause burning damage. Therefore, how to effectively dissipate heat has become a very important issue in the development of computers today.

[0003] The heat dissipation kits currently applied include liquid cooling and air cooling. However, the most important heat dissipation parts of the two are mainly fans. Especially the fans used in notebook computers or servers. Due to space limitations, the number of fans cannot be expanded. Therefore, how to increase the performance of the existing fans has become the focus of fan manufacturers.

[0004] The fan in the prior art is usually provided with a circular air inlet opposite to the fan blade at a non-central position of the shell. However, the circular air inlet has a small pressure and a high flow rate in the local area during air inlet, which is easy to produce noise, resulting in poor sound quality of the fan, often accompanied by sharp abnormal sound.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a heat dissipation fan and electronic equipment. SUMMARY

[0006] The purpose of the present application is to provide a heat dissipation fan and electronic equipment to reduce the noise caused by pressure and flow rate of the heat dissipation fan.

[0007] In order to achieve the above purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0008] A heat dissipation fan, the heat dissipation fan comprising a shell, the shell being provided with a hollow area and at least one reinforcing structure located in the hollow area and fixedly installed with the shell, the reinforcing structure being used to reduce the noise caused by pressure and / or flow rate, the shell being provided with a fan blade opposite to the hollow area, and the hollow area and the reinforcing structure being combined to form an air inlet.

[0009] In an embodiment, the hollow area is a circular area with a radius R, the reinforcing structure is a reinforcing area surrounded by a circular arc with a radius R and an intersection line of the circular area, and an air inlet area of the air inlet is a remaining area after the circular area with the radius R removes the reinforcing area.

[0010] In an embodiment, the reinforcing structure is provided with 1-3, and / or the area of the reinforcing region is 10%-30% of the area of the circular region.

[0011] In an embodiment, the reinforcing structure is provided with a plurality of reinforcing structures, which are arranged separately or partially overlap.

[0012] In an embodiment, the shell is provided with two mounting plates arranged oppositely and a side plate fixedly mounted between the outer peripheries of the two mounting plates, the hollow region is arranged on one of the mounting plates, and the reinforcing structure is fixedly mounted on the mounting plate.

[0013] In an embodiment, the hollow region is located in a non-central region of the mounting plate, and the reinforcing structure is fixedly mounted on one side of the hollow region close to the center.

[0014] In an embodiment, the air inlet is provided with at least one strong wind region and at least one weak wind region on the side of the air inlet, the pressure and / or flow rate of the strong wind region is greater than that of the weak wind region, and at least one reinforcing structure is distributed close to the strong wind region.

[0015] In an embodiment, the reinforcing structure is integrally formed with the mounting plate.

[0016] In an embodiment, the side plate is fixedly provided with an extension plate arranged parallel to the mounting plate, and the extension plate is provided with a fixed column and a fixed hole fixedly matched with the mounting plate.

[0017] Another embodiment of the present application provides the technical scheme as follows:

[0018] An electronic device comprises the heat dissipation fan.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] The heat dissipation fan of the present application increases the reinforcing structure in the hollow region of the shell, which is used for optimizing the shape of the air inlet, so as to effectively reduce the noise caused by the pressure and flow rate. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 It is a partial perspective structure diagram of the heat dissipation fan in a specific embodiment of the present application.

[0023] Figure 2 Fig. 1 is a schematic diagram of a partial exploded structure of a heat dissipation fan according to an embodiment of the present application;

[0024] Figure 3 Fig. 2 is a schematic diagram of a planar structure of the heat dissipation fan according to an embodiment of the present application;

[0025] Figure 4 Fig. 3 is a schematic diagram of a planar structure of a hollow region according to an embodiment of the present application;

[0026] Figure 5 Fig. 4 is a schematic diagram of a planar structure of a reinforcing region according to an embodiment of the present application; DETAILED DESCRIPTION

[0027] The present application will be described in detail below with reference to the embodiments shown in the drawings. However, the embodiments do not limit the present application, and any changes in structure, method, or function made by those skilled in the art based on the embodiments are included in the scope of the present application.

[0028] Referring to Fig. 1, a heat dissipation fan according to an embodiment of the present application includes a housing. The housing includes two mounting plates 10 arranged opposite to each other and a side plate 20 fixedly mounted between the outer peripheries of the two mounting plates. One of the mounting plates 10 is provided with a hollow region 31. A reinforcing structure 11 is fixedly mounted on the mounting plate, and a reinforcing region 32 formed by the reinforcing structure 11 is located in the hollow region 31. The hollow region and the reinforcing structure form a fan inlet 30 in combination. The housing is provided with a fan blade (not shown) arranged opposite to the hollow region 31. The reinforcing structure 11 is used to reduce noise caused by pressure and / or flow rate. Figures 1 to 5 Referring to Fig. 1, a heat dissipation fan according to an embodiment of the present application includes a housing. The housing includes two mounting plates 10 arranged opposite to each other and a side plate 20 fixedly mounted between the outer peripheries of the two mounting plates. One of the mounting plates 10 is provided with a hollow region 31. A reinforcing structure 11 is fixedly mounted on the mounting plate, and a reinforcing region 32 formed by the reinforcing structure 11 is located in the hollow region 31. The hollow region and the reinforcing structure form a fan inlet 30 in combination. The housing is provided with a fan blade (not shown) arranged opposite to the hollow region 31. The reinforcing structure 11 is used to reduce noise caused by pressure and / or flow rate.

[0029] Figure 4 , Figure 5 Referring to Fig. 1, a heat dissipation fan according to an embodiment of the present application includes a housing. The housing includes two mounting plates 10 arranged opposite to each other and a side plate 20 fixedly mounted between the outer peripheries of the two mounting plates. One of the mounting plates 10 is provided with a hollow region 31. A reinforcing structure 11 is fixedly mounted on the mounting plate, and a reinforcing region 32 formed by the reinforcing structure 11 is located in the hollow region 31. The hollow region and the reinforcing structure form a fan inlet 30 in combination. The housing is provided with a fan blade (not shown) arranged opposite to the hollow region 31. The reinforcing structure 11 is used to reduce noise caused by pressure and / or flow rate.

[0030] Specifically, the hollow region 31 in the embodiment is a circular region with a radius R (see the hatched region in Fig. 3). The reinforcing structure 11 is a reinforcing region 32 formed by the intersection of a circular arc with a radius R and a straight line of the circular region (see the hatched region in Fig. 4). The inlet area of the fan inlet 30 formed finally is the remaining area of the circular region with a radius R after the reinforcing region 32 is removed. Figure 4 Figure 5 Specifically, the hollow region 31 in the embodiment is a circular region with a radius R (see the hatched region in Fig. 3). The reinforcing structure 11 is a reinforcing region 32 formed by the intersection of a circular arc with a radius R and a straight line of the circular region (see the hatched region in Fig. 4). The inlet area of the fan inlet 30 formed finally is the remaining area of the circular region with a radius R after the reinforcing region 32 is removed.

[0031] ​​The air inlet comprises at least one strong wind area and at least one weak wind area on the side of the air inlet, the pressure and flow rate of the strong wind area are greater than those of the weak wind area, and at least one reinforcing structure is arranged near the strong wind area. For example, the lower left area of the air inlet 30 in the embodiment is a strong wind area, the lower right area is a weak wind area, and the reinforcing structure 11 is arranged on one side (left side) of the strong wind area.

[0032] Preferably, the reinforcing structure 11 in the embodiment is integrally formed with the mounting plate 10, and the materials and thicknesses thereof are equal.

[0033] In the embodiment, the number of reinforcing structures 11 is one, the air inlet area of the air inlet 30 is surrounded by a circular arc with a radius R and a straight line, the area of the reinforcing area 32 is 10% to 30% of the area of the circular area, and the ratio is related to the noise reduction performance. For example, in the embodiment, the noise reduction data corresponding to different reinforcing area sizes are shown in Table 1:

[0034] Table 1: Noise reduction data table of different reinforcing area sizes

[0035] Reinforced area / hollow area 10％ 15％ 20％ 25％ 30％ Can reduce noise 0.1 dB 0.2 dB 0.4 dB 0.7 dB 0.9 dB PR value 0.3 dB 0.7 dB 1.3 dB 2 dB 2.5 dB

[0036] In addition, referring to Figure 1 、 Figure 2 As shown, the extension 21 parallel to the mounting plate is fixedly installed on the side plate 20 in the embodiment, a plurality of fixed columns 211 protruding towards the inside of the fan are fixedly installed on the extension 21, a plurality of fixed holes 12 are arranged on the mounting plate 10, and the fixed columns and the fixed holes are matched to realize the fixed installation of the mounting plate and the side plate. Further, a support column 212 can also be arranged on the fixed column 211, and the fixed installation between the two mounting plates 10 can be realized through the support column 212.

[0037] It should be understood that the above specific embodiments are described by taking one reinforcing structure arranged in the hollow area as an example, and in other embodiments, the number of reinforcing structures is not limited, and can be two, three or more, and the area of the corresponding reinforcing area is 10% to 30% of the area of the entire hollow area. In addition, when a plurality of reinforcing structures are arranged, the different reinforcing structures are arranged separately or partially overlap, which will not be described one by one here.

[0038] Further, the shape of the hollow area and the reinforcing structure is not limited to the above embodiments. For example, the hollow area can be arranged in an elliptical or irregular shape, and the reinforcing structure can also be arranged to form a reinforcing area surrounded by two circular arcs with different radii. Any technical solution for reducing noise caused by pressure and flow rate through the reinforcing structure falls within the protection scope of the present application.

[0039] The heat dissipation fan in the present application can be applied to various electronic devices, such as notebook computers or servers.

[0040] From the above technical solutions, the application has the following beneficial effects:

[0041] The reinforcing structure is used for effectively reducing noise caused by pressure and flow rate by optimizing the shape of the air inlet.

[0042] It is apparent for those skilled in the art that the application is not limited to the details of the above exemplary embodiments, and the application can be implemented in other specific forms without departing from the spirit or essential characteristics of the application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0043] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the present specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other implementation manners that those skilled in the art can understand.

Claims

1. A heat dissipating fan characterized by, The heat dissipation fan comprises a shell, a hollow area and at least one reinforcing structure fixedly installed in the hollow area and on the shell, the reinforcing structure being used for reducing noise caused by pressure and / or flow rate, a fan blade being arranged in the shell and opposite to the hollow area, the hollow area and the reinforcing structure forming a fan inlet, the hollow area being a circular area with a radius R, the reinforcing structure being a reinforcing area formed by a circular arc with a radius R and an intersection line of the circular area, an air inlet area of the fan inlet being a remaining area of the circular area with the radius R after removing the reinforcing area, the fan inlet comprising at least one strong wind area and at least one weak wind area on the side of the fan inlet, the flow rate of the strong wind area being greater than that of the weak wind area, the at least one reinforcing structure being distributed near the strong wind area, and an area of the reinforcing area being 10%-30% of an area of the circular area.

2. The heat dissipating fan according to claim 1, wherein, The reinforcing structure is provided with 1-3 reinforcing structures.

3. The heat dissipating fan according to claim 1, wherein, The reinforcing structure is provided with a plurality of reinforcing structures, and the reinforcing structures are arranged in a separated or partially overlapped manner.

4. The heat dissipating fan of claim 1, wherein, The shell comprises two installation plates arranged oppositely and a side plate fixedly installed between the outer circumferences of the two installation plates, the hollow area is arranged on one of the installation plates, and the reinforcing structure is fixedly installed on the installation plate.

5. The heat dissipating fan according to claim 4, wherein, The hollow area is arranged at a non-central area of the installation plate, and the reinforcing structure is fixedly installed on one side of the hollow area close to the center.

6. The heat dissipating fan according to claim 5, wherein, The reinforcing structure is integrally formed with the installation plate.

7. The heat dissipating fan according to claim 5, wherein, The side plate is fixedly provided with an extension plate arranged parallel to the installation plate, and the extension plate is provided with a fixed column and a fixed hole fixedly matched with the installation plate.

8. An electronic device, comprising: The electronic device comprises the heat dissipation fan according to any one of claims 1-7.

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