Fan device and electronic equipment

Abstract

The utility model provides a fan device which comprises a fan blade assembly formed through stamping, the fan blade assembly comprises fan blades, a connecting ring and a cylindrical hub, the connecting ring and the fan blades are integrally arranged, and the connecting ring is welded to the cylindrical hub. The fan device comprises a first fan blade assembly and a second fan blade assembly, and the first fan blade assembly and the second fan blade assembly are welded to the cylindrical hub in a staggered mode. The fan blades of the first fan blade assembly are located on the lower edge of the connecting ring, the fan blades of the second fan blade assembly are located on the upper edge of the connecting ring, and the first fan blade assembly is located above the second fan blade assembly after assembly. And the highest point and the lowest point are positioned on the same horizontal plane. The fan is made of a thin-wall metal material, and the thickness of the metal wall is 0.1-1mm. The fan device is suitable for computers, servers, communication equipment and consumer electronics. The radiator has the advantages that the radiating efficiency and the structural strength are improved, the manufacturing process is simplified, and the production cost is reduced.

Description

Technical Field

[0001] This application belongs to the field of fans for heat dissipation of electronic devices, and particularly relates to an improved assembly method and structure of a fan for an electronic device. Background Art

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

[0003] To solve the lifespan problem, metal fans have emerged. 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, a suitable method for processing metal fans and simplifying the structure needs to be found. Summary of the Invention

[0005] The object of the present invention is to provide an improved fan device and its application in an electronic device to improve the heat dissipation performance and reliability of the fan, while simplifying the manufacturing process and reducing the manufacturing cost. To solve the problems of short lifespan, complex structure, and high manufacturing cost of fans in the prior art, the present invention designs a fan device made of thin-walled metal material, and the device adopts a structural design of a stamping-formed blade assembly and a cylindrical hub.

[0006] The fan device includes a stamping-formed blade assembly, and the blade assembly includes blades and a connecting ring integrally provided with the blades. The connecting ring is fixed on the cylindrical hub by welding, ensuring the stability of the assembly. To further improve the heat dissipation efficiency and air flow effect, the fan device further includes a first blade assembly and a second blade assembly, and these two assemblies are welded on the cylindrical hub in a staggered manner. Specifically, the blades of the first blade assembly are located at the lower edge of the connecting ring, and the blades of the second blade assembly are located at the upper edge of the connecting ring. After such assembly, the first blade assembly is located above the second blade assembly.

[0007] To optimize the layout of the blades, the blades of the first blade assembly are arranged at unobstructed positions between the blades of the second blade assembly. Further, the blade structures of the first blade assembly and the second blade assembly are the same, and the highest point and the lowest point positions of the two are on the same horizontal plane.

[0008] The present invention manufactures a fan using a thin-walled metal material. The thickness of the metal wall is 0.1 - 1 mm. This thin-walled material improves the durability and heat dissipation performance of the fan, effectively reduces the weight, and is suitable for electronic devices with high reliability and high heat dissipation requirements. In addition, the fan device of the present invention can also be applied to various electronic devices, including but not limited to computers, servers, communication devices, and consumer electronics products.

[0009] Through the above technical solutions, the present invention provides a fan device with high heat dissipation performance, simple structure, and low manufacturing cost, solves many problems in the prior art, and significantly improves the performance and reliability of the fan. Description of the Drawings

[0010] Figure 1 It is a schematic diagram of the overall structure of the fan.

[0011] Figure 2 It is a schematic diagram of the hub structure at the center of the fan.

[0012] Figure 3 It is a schematic diagram of the blade assembly structure.

[0013] Reference numerals: cylindrical hub 100, hole 101, first blade assembly 210, blade 211, connecting ring 212, second blade assembly 220, blade 221, connecting ring 222. Detailed Description of the Invention

[0014] The following further describes the embodiments of the present application in detail with reference to the drawings to facilitate those skilled in the art to understand the technical solutions of the present application.

[0015] As Figure 1 and Figure 2 shown, the core component of the fan is a cylindrical hub 100, which is located at the center of the fan and plays a role in supporting and connecting the blade assemblies. The center of the hub 100 is a hollow cup-shaped structure, and the motor components, such as magnets and stator coils, are arranged inside the cup-shaped structure. There is a hole 101 at the center of the hub 100, which can be used to fix the position of the fan in the device.

[0016] As Figure 3 shown, the fan device includes a first blade assembly 210 and a second blade assembly 220. The blades 211 of the first blade assembly 210 are located at the lower edge of the connecting ring 212, and the blades 221 of the second blade assembly 220 are located at the upper edge of the connecting ring 222, so that the first blade assembly 210 is located above the second blade assembly 220 after assembly. The two blade assemblies are welded to the cylindrical hub 100 with a dislocation, and this design ensures that there is no occlusion between the blades, the air flow is smoother, and the heat dissipation efficiency is effectively improved.

[0017] Specifically, the first blade assembly 210 is composed of multiple blades 211 and a connecting ring 212. Each blade 211 is manufactured by a stamping process. The bending shape of the blade 211 is a forward-inclined bending design, making the leading edge 213 of the blade 211 slightly higher than the trailing edge 214, forming an inclined angle to guide the air flow. The blade 211 is integrally formed with the connecting ring 212. The connecting ring 212 is circular and located inside the blade 211. The geometric design of the connecting ring 212 has equally spaced flanges 215, and these flanges 215 are connected to the roots of the blades 211 to ensure that the blades 211 can be fixed in a specific position and maintain a stable angle during installation. Multiple welding interfaces 216 are provided on the inner side of the connecting ring 212 for firmly welding the first blade assembly 210 to the cylindrical hub 100.

[0018] Specifically, the second blade assembly 220 is composed of multiple blades 221 and a connecting ring 222. Each blade 221 is manufactured by a stamping process. The bending shape of the blade 221 is a forward-inclined bending design, making the leading edge 223 of the blade 221 slightly higher than the trailing edge 224, forming an inclined angle to guide the air flow. The blade 221 is integrally formed with the connecting ring 222. The connecting ring 222 is circular and located inside the blade 221. The geometric design of the connecting ring 222 has equally spaced flanges 225, and these flanges 225 are connected to the roots of the blades 221 to ensure that the blades 221 can be fixed in a specific position and maintain a stable angle during installation. Multiple welding interfaces 226 are provided on the inner side of the connecting ring 222 for firmly welding the second blade assembly 220 to the cylindrical hub 100.

[0019] To ensure the structural consistency and optimize the air flow, the blades 211 of the first blade assembly 210 are arranged at unobstructed positions between the blades 221 of the second blade assembly 220. In addition, the blade structures of the first blade assembly 210 and the second blade assembly 220 are the same, and the highest and lowest points of both are on the same horizontal plane.

[0020] The fan device of the present invention is made of a thin-walled metal material, and the thickness of the metal wall is between 0.1 and 1 millimeter. Aluminum alloy, copper alloy or other lightweight and high thermal conductivity metal materials can be used. These materials have good thermal conductivity and mechanical strength and are suitable for stamping. The thin-walled metal material not only improves the durability and heat dissipation performance of the fan but also effectively reduces the weight, making it suitable for electronic devices with high reliability and high heat dissipation requirements.

[0021] The manufacturing process is as follows:

[0022] Step 1, stamp and form the blades 211 and the connecting ring 212 of the first blade assembly 210 and the second blade assembly 220 respectively. Ensure that the dimensions and shapes of each component are consistent to guarantee the accuracy during assembly.

[0023] Step 2: Insert the connecting ring inside the connecting ring 212 of the first blade assembly 210 onto the hub 100, with the welding interface 226 abutting against the surface of the hub 100. Use laser welding or other high-precision welding techniques to weld the first blade assembly 210 to the hub 100.

[0024] Step 3: Insert the connecting ring inside the connecting ring 222 of the second blade assembly 220 onto the hub 100. Use the same welding technique to weld the second blade assembly 220 to the surface of the hub 100. The blades 221 of the second blade assembly 220 are distributed in a staggered manner with respect to the blades of the first blade assembly 210, that is, the blades 211 of the first blade assembly 210 are distributed at the position of the welding interface 226 of the second blade assembly 220, and correspondingly, the blades 221 of the second blade assembly 220 are distributed at the position of the welding interface 211 of the first blade assembly 210, ensuring that there is no obstruction between the blades and optimizing the air flow.

[0025] Through the above technical solution, the present invention provides an efficient, reliable and easily manufacturable fan device, which can effectively solve the problems of short fan life and high manufacturing cost in the prior art, significantly improve the heat dissipation performance and structural strength of the fan, and is applicable to various electronic devices with high heat dissipation requirements.

Claims

1. A fan device, characterized in that: include: A stamped fan blade assembly, the fan blade assembly comprising a fan blade and a connecting ring integrally provided with the fan blade; a cylindrical hub, the connecting ring being welded on the cylindrical hub; The first fan blade assembly and the second fan blade assembly are respectively fixed on the cylindrical hub by welding, and each fan blade assembly is formed by stamping a connecting ring and a plurality of fan blades in one piece.

2. The fan device according to claim 1, characterized in that The blades on the first blade assembly and the second blade assembly are staggered.

3. The fan device according to claim 1, characterized in that The blades of the first blade assembly are located at the lower edge of the connecting ring, and the blades of the second blade assembly are located at the upper edge of the connecting ring. After assembly, the first blade assembly is located above the second blade assembly.

4. The fan device according to claim 3, characterized in that The blades of the first blade assembly are arranged at unobstructed positions between the blades of the second blade assembly.

5. The fan device according to claim 4, characterized in that The first fan blade assembly and the second fan blade assembly have the same fan blade structure, and the highest point and the lowest point of the two are located on the same horizontal plane.

6. The fan device according to any one of claims 1 to 5, characterized in that: The fan is made of a thin-walled metal material, and the thickness of the metal wall is 0.1-1 mm.

7. An electronic device comprising: A fan device, characterized in that the fan device comprises the fan device according to any one of claims 1-6.

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