Fan device and electronic equipment

Abstract

The utility model provides a fan device, and aims to improve the heat dissipation performance and reliability of electronic equipment. The device comprises a cylindrical hub and a plurality of blades, wherein the blades are fixed on the outer surface of the hub through riveting structures. The riveting structure is composed of a convex hull and a riveting hole, the convex hull is provided with a cylindrical chamfer structure, is arranged on the riveting plate and is matched with the riveting hole in the hub, and stable connection is achieved. The blades and the hub can be machined separately and then assembled through a simple riveting process, and the method is suitable for various metal machining methods. By means of the design, connection between the blades and the hub is firmer and more reliable, and the impeller is particularly suitable for high-temperature and high-vibration environments. The fan blades and the hub which are made of metal materials have excellent heat conduction performance and durability. The fan device is suitable for various electronic devices needing efficient heat dissipation, such as notebook computers, tablet personal computers, smart phones and game devices.

Description

Technical Field

[0001] The present application belongs to the field of fans for heat dissipation of electronic equipment, and in particular to an improved assembly method and structure of a fan for electronic equipment. Background Art

[0002] Electronic products often need to be equipped with fans. Such fans mainly use plastic blades and plastic hubs. They are low-cost and light-weight, but their lifespan is short under high reliability requirements and harsh working environments.

[0003] In order to solve the life problem, metal fans have appeared. Such fans usually use metal blades and metal hubs, and have good durability and heat dissipation performance. Due to the special structure of the fan, the processing of metal materials requires complex processes and high manufacturing costs.

[0004] Therefore, it is necessary to find a suitable method to process the metal fan and simplify the structure. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a fan device, including a cylindrical hub and a plurality of blades, wherein the blades are fixed to the outer surface of the hub by riveting, and the riveting method adopts the combination of a convex bulge and a rivet hole. The hub includes a rivet hole, and the blade includes a convex bulge, which has a cylindrical chamfered structure, and the convex bulge is arranged on a riveted plate. The rivet plate has an arc-shaped profile that fits with the hub when riveted, and the hub is made of aluminum alloy or other lightweight materials to reduce the overall weight.

[0006] The present invention also relates to a device comprising the above-mentioned fan device, and the device can be applied to electronic equipment requiring heat dissipation.

[0007] Compared with the existing technology, this fan has many technical advances. First, the riveting method of convex humps and riveting holes makes the processing technology simpler. The blades and the hub are not integrated structures and can be processed separately and then assembled together through the riveting process, which facilitates the use of simpler metal processing methods. Secondly, this riveting method makes the connection between the blades and the hub more firm and reliable, not easy to loosen or fail, and is particularly suitable for high vibration and high temperature environments. Finally, through the standardized riveting process, the manufacturing process is simplified, the manufacturing cost is reduced, and the production efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the fan.

[0009] Figure 2 It is a schematic diagram of the hub structure at the center of the fan.

[0010] Figure 3 It is a schematic diagram of the blade structure.

[0011] Figure 4 It is a schematic diagram of the blade structure.

[0012] Related component names and reference numerals: hub 100 , blade 200 , fan blade 201 , riveted plate 202 , convex bump 300 , riveted hole 400 , chamfer 103 , center hole 101 , small hole 102 . DETAILED DESCRIPTION

[0013] Embodiment 1

[0014] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings to facilitate those skilled in the art to understand the technical solution of the present application.

[0015] like Figure 1 The fan shown is made entirely of thin-walled metal material. This type of fan is widely used in various electronic devices, including but not limited to laptop computers, tablet computers, handheld smart devices, gaming devices, and embedded computing devices.

[0016] The fan comprises a cylindrical hub 100 and a plurality of blades 200, and the blades 200 are fixed to the outer surface of the hub 100 by a riveting structure. The riveting structure adopts the design of a convex bump 300 and a riveting hole 400, so that the connection is more firm and reliable.

[0017] The fan hub 100 and the fan blades 201 can be made of thin metal sheets, such as aluminum alloy, titanium alloy, aluminum, copper and the like, and the thickness of the metal sheets is between 0.1-1 mm.

[0018] like Figure 2 and Figure 3 As shown, the blade 200 includes a blade 201 and a riveting plate 202. The riveting plate 202 is provided with convex bumps 300, which cooperate with the riveting holes 400 on the hub 100 to achieve riveting connection. The convex bumps 300 are cylindrical chamfered corners 103 and are formed by a stamping process. The riveting plate 202 has an arc-shaped profile that fits the hub 100 when riveted, ensuring the stability and consistency of the blade 200 after installation.

[0019] During the manufacturing process, two different manufacturing methods can be used according to the formation timing of the convex bumps 300. The first method is to first punch the raw material into the fan blades 201 and the riveted plates 202 through a stamping process, and then form the multiple convex bumps 300 on the riveted plates 202 through secondary stamping. The second method is to first punch the raw material into the fan blades 201 and the riveted plates 202 through a stamping process, and then fix the relative position of the riveted plates 202 and the wheel hub 100 through a tool, and then punch the riveted plates 202 through a tool so that the convex bumps 300 correspond to the positions of the riveted holes 400 on the wheel hub 100, thereby forming the convex bumps 300 on the riveted plates 202. At this time, the convex bumps 300 are directly connected to the riveted holes 400 during the stamping process.

[0020] The convex bump 300 and the rivet hole 400 cooperate with each other to achieve riveting. The convex bump 300 and the rivet hole 400 can be fixed by interference fit, or the part of the convex bump 300 passing through the rivet hole 400 can be flattened and expanded by riveting, so as to achieve the cooperation and fixation of the two.

[0021] In order to achieve the interference fit, the convex bump 300 has a cylindrical chamfer 103 structure, which reduces the diameter of the end of the convex bump 300 to facilitate direct entry into the riveting hole 400. It can be understood that in the first manufacturing method, since the fan blade 201 and the hub 100 can be directly riveted, the chamfer 103 structure is not required.

[0022] As shown in the figure, the hub 100 is cylindrical with an opening in the center for accommodating fan motor components, including permanent magnets, stator coils, etc. There is a center hole 101 on the top, and multiple rivet holes 400 are evenly distributed on the cylindrical surface. The top edge has a chamfer 103 design to facilitate assembly and reduce stress concentration.

[0023] Two assembly processes are given according to riveting and interference fitting.

[0024] The riveting assembly process includes several steps:

[0025] Step 1, preparation, ensure that the hole positions of the blade 200 and the hub 100 match, and all parts are clean and free of impurities.

[0026] Step 2, inserting the blade 200 and placing the riveted plate of the blade 200 close to the surface of the hub 100.

[0027] Step 3, riveting and fixing, using riveting equipment to punch the blade 200 so that the blade 200 produces a convex bulge 300 for riveting, and the convex bulge 300 is fixed in the hole of the hub 100 to make it tightly combined.

[0028] Step 4, inspection and testing, ensuring that all blades 200 are securely mounted on the hub 100, performing necessary dynamic balancing tests and ensuring the stability and functionality of the entire structure.

[0029] The interference fit assembly process consists of several steps:

[0030] Step 1, preparation, ensure that the hole positions of the hub 100 and the blade 200 match, and all parts are clean and free of impurities.

[0031] Step 2: insert the blade 200, insert the convex part 300 of the blade 200 into the corresponding hole of the hub 100, and use a press or other tool to apply pressure to fully insert it, ensuring that the blade 200 is firmly installed on the hub 100 through interference fit.

[0032] Step 3, inspection and testing, ensuring that all blades 200 are securely mounted on the hub 100, performing necessary dynamic balancing tests and ensuring the stability and functionality of the entire structure.

[0033] Compared with the existing technology, this fan has significant improvements:

[0034] 1. The riveting method of the convex humps and the riveting holes 400 makes the processing easier. The blades 200 and the hub 100 are non-integrated structures and can be processed separately and then assembled together by riveting, which is convenient for using simple metal processing methods.

[0035] 2. This riveting method makes the connection between the blade 200 and the hub 100 more secure and less likely to loosen or fail, and is particularly suitable for high vibration and high temperature environments.

[0036] 3. Through standardized riveting process, the manufacturing process is simplified, the manufacturing cost is reduced, and the production efficiency is improved.

[0037] Embodiment 2

[0038] like Figure 4 The difference between this embodiment and the first embodiment is that the positions of the convex bump and the riveting hole are swapped, that is, the convex bump is arranged on the wheel hub, and the riveting hole is arranged on the riveting plate.

[0039] The blade 200 includes a blade 201 and a riveting plate 202. The riveting plate 202 is provided with riveting holes 400, which cooperate with the convex bumps (not shown in the figure) on the hub 100 to achieve riveting connection. The convex bumps 300 are cylindrical chamfered corners 103 and are formed by a stamping process. The riveting plate 202 has an arc-shaped profile that fits the hub 100 when riveted, ensuring the stability and consistency of the blade 200 after installation.

Claims

1. A fan device, characterized in that: include: a cylindrical hub; A plurality of blades are fixed on the outer surface of the hub through a riveting structure, wherein the riveting structure comprises a convex bump and a riveting hole.

2. The fan device according to claim 1, characterized in that in, The hub comprises a rivet hole, the blade comprises a convex hull, and the convex hull and the rivet hole cooperate with each other to achieve riveting.

3. The fan device according to claim 1, characterized in that in, The hub comprises a convex hull, and the blade comprises a rivet hole, and the convex hull and the rivet hole cooperate with each other to achieve riveting.

4. The fan device according to any one of claims 2 or 3, characterized in that: in, The convex hull is a chamfered structure having a cylinder.

5. The fan device according to claim 4, characterized in that in, The blade comprises a fan blade and a riveted plate, and the convex bump is arranged on the riveted plate.

6. The fan device according to claim 5, characterized in that in, The riveting plate has an arc-shaped profile that fits the wheel hub when riveted.

7. The fan device according to claim 2, characterized in that in, The convex hull is a structure formed by punching the blade.

8. An electronic device, characterized in that: Comprising the fan device as claimed in claim 1.

Images