Electric connection structure of fan frame

Abstract

The utility model provides a fan frame electrical connection structure which comprises a fan frame body, at least one soft board and at least one outer circuit board, the soft board is formed in the fan frame body in a wrapping mode, one end of the soft board is electrically connected with an inner circuit board inside the fan frame body, and the other end of the soft board is electrically connected with the outer circuit board outside the fan frame body. And the inner circuit board is electrically connected with the outer circuit board through the flexible board, so that the assembly time and the assembly cost consumed by arranging and arranging the leads and welding the leads one by one are saved, and the condition that the flexible board falls off due to pulling of external force can be avoided.

Description

Technical Field

[0001] This utility model relates to a fan, and more particularly to an electrical connection structure for a fan frame that eliminates the need for wire routing and wiring, as well as the need for individual welding, thereby saving assembly time and costs. Background Technology

[0002] Fans are a common system cooling device, frequently used in electronic devices (such as servers or computers) to provide forced cooling. However, the control circuit board signals inside a fan typically need to be electrically connected to the motherboard of an external host device. The control circuit board and the motherboard are electrically connected via a gold-fingered printed circuit board. Conventional fans have a gold-fingered printed circuit board fixed on the fan frame, and the control circuit board inside the fan is electrically connected to this gold-fingered printed circuit board by multiple wires. The wires of the control circuit board must be led out from inside the fan frame and soldered onto the gold-fingered printed circuit board. The wires also need to be arranged and managed inside the fan frame. However, the space inside the fan frame for arranging and managing wires is limited, making it inconvenient for arranging and managing wires. Furthermore, in situations where arranging and managing wires is difficult, each wire must be soldered to the gold-fingered printed circuit board, which undoubtedly causes a significant increase in assembly time and assembly costs.

[0003] Therefore, how to improve the wiring and cable management within the limited space of the fan, as well as the increased assembly time and cost caused by the difficulty of soldering, is the direction that the designers of this project and related manufacturers in this industry urgently want to study and improve. Utility Model Content

[0004] Therefore, in order to effectively solve the above problems, the main purpose of this utility model is to provide a fan frame electrical connection structure that uses a flexible printed circuit board for electrical connection, which can effectively utilize the limited space inside the fan and save the assembly time and assembly cost of arranging and soldering wires.

[0005] Another objective of this invention is to provide an electrical connection structure for a fan frame that can prevent the flexible printed circuit board from falling off due to external force.

[0006] Another objective of this invention is to provide a fan frame electrical connection structure that can reduce wiring and cable management space, thereby increasing the fan blade wheelbase or reducing the fan frame volume.

[0007] This utility model provides an electrical connection structure for a fan frame, characterized in that it includes:

[0008] A fan frame has an inner circuit board inside and an outer circuit board outside the fan frame.

[0009] At least one flexible circuit board is overlaid in the fan frame. The flexible circuit board has a first connecting portion electrically connected to the inner circuit board and a second connecting portion electrically connected to the outer circuit board, so that the flexible circuit board is electrically connected to the inner circuit board and the outer circuit board.

[0010] The fan frame electrical connection structure wherein: the second connection portion is exposed on the fan frame surface of the fan frame body and is electrically connected to the external circuit board.

[0011] The aforementioned fan frame electrical connection structure, wherein: at least one joint is formed on the fan frame, and the outer circuit board is positioned outside the fan frame by the joint.

[0012] The aforementioned fan frame electrical connection structure includes: a first metal end on one side of the outer circuit board, and a second metal end on the other side opposite to the first metal end, wherein the second connection portion is connected to the first metal end.

[0013] The aforementioned fan frame electrical connection structure includes: the outer circuit board having a mating portion formed at the second metal end position, the mating portion protruding from the surface of the fan frame.

[0014] The fan frame electrical connection structure wherein the first metal end and the second metal end are metal conductors formed by stamping.

[0015] By utilizing the electric connection structure of the fan frame of this utility model, the flexible circuit board embedded in the fan frame is electrically connected to the inner circuit board and the outer circuit board respectively. This can effectively save the assembly time and assembly cost of arranging and managing wires and soldering them one by one, and can also prevent the flexible circuit board from falling off due to external force. Attached Figure Description

[0016] Figure 1 This is a three-dimensional assembly diagram of the electrical connection structure of the fan frame of this utility model.

[0017] Figure 2 This is an exploded perspective view of the electrical connection structure of the fan frame of this utility model.

[0018] Figure 3 This is a planar sectional view of the electrical connection structure of the fan frame of this utility model.

[0019] Figure 4 This is a three-dimensional schematic diagram of another combination of the electrical connection structure of the fan frame of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Fan frame electrical connection structure; 2. Fan frame body; 21. Inner circuit board; 22. Fan frame surface; 23. Joint; 3. Flexible board; 31. First connecting part; 32. Second connecting part; 4. Outer circuit board; 41. First metal end; 42. Second metal end; 43. Butt joint. Detailed Implementation

[0021] The above-mentioned objectives of this utility model and its structural and functional characteristics will be described with reference to the preferred embodiments shown in the accompanying drawings.

[0022] Please see Figure 1 , Figure 2 , Figure 3 As shown, these are respectively a three-dimensional assembly diagram, a three-dimensional exploded diagram, and a planar sectional view of the fan frame electrical connection structure 1 of this utility model. As shown in the figure, this utility model provides a fan frame electrical connection structure 1, which includes: a fan frame body 2, at least one flexible board 3, and at least one external circuit board 4.

[0023] The fan frame 2 has at least one inner circuit board 21 inside, and the fan frame electrical connection structure 1 can be a single motor configuration or a dual motor configuration. In this embodiment, it is illustrated by having one outer frame with dual motors, and the inner circuit board 21 is electrically connected to the dual motors, but it is not limited thereto. In addition, a fan frame surface 22 is formed on the fan frame 2, and at least one joint portion 23 is formed on the fan frame surface 22.

[0024] The flexible circuit board 3 is encased in the fan frame 2. The flexible circuit board 3 has a first connecting part 31 and a second connecting part 32. The first connecting part 31 is connected to the inner circuit board 21, while the second connecting part 32 is exposed on the fan frame surface 22 of the fan frame.

[0025] The outer circuit board 4 is disposed on the surface 22 of the fan frame, and the outer circuit board 4 has a first metal end 41 on one side and a second metal end 42 on the other side opposite to the first metal end 41. The first metal end 41 is a metal conductor formed by stamping and is electrically connected to the second connection part 32. The second metal end 42 is a metal conductor formed by stamping.

[0026] Therefore, in the fan frame electrical connection structure 1 of this utility model, the inner circuit board 21 and the outer circuit board 4 are electrically connected by two exposed ends of the flexible board 3, thereby saving the assembly time and cost of conventional fans that require arranging and soldering wires one by one. Furthermore, the flexible board 3 is encased in the fan frame 2, which can effectively prevent the flexible board 3 from falling off due to external pulling. And the outer circuit board 4 is encased in the fan frame 2, which can effectively prevent the outer circuit board 4 from shifting and falling off during electrical connection.

[0027] Furthermore, the electrical connection structure 1 of the fan frame of this utility model eliminates the need to arrange cables one by one inside the fan frame 2, thereby reducing the space required for cable arrangement inside the fan frame 2. Correspondingly, in a fan frame 2 of the same size, the original cable arrangement space can be used to increase the fan blade wheelbase. Also, by reducing the space required for cable arrangement, the installation volume of the fan frame 2 can be reduced, as well as the turbulence caused by the reduced space.

[0028] Please see again Figure 4 As shown, this is another three-dimensional combination schematic diagram of the electrical connection structure of the fan frame of this utility model. The flexible board 3 is covered and formed in the fan frame 2, the outer circuit board 4 is disposed on the fan frame 2, and the outer circuit board 4 is connected to the second connecting part 32 exposed on the fan frame 2 by the first metal end 41. The outer circuit board 4 further forms a docking part 43 at the position of the second metal end 42. The docking part 43 protrudes from the surface 22 of the fan frame, and the second metal end 42 is formed on the docking part 43, so that the outer circuit board 4 can be docked with external devices through the docking part 43 and the second metal end 42.

[0029] Based on the above description, the present invention has the following advantages over the prior art:

[0030] 1. Eliminates the assembly time and cost of conventional fans that require arranging, managing, and soldering wires one by one.

[0031] 2. It can effectively prevent the flexible board from falling off due to external pulling force.

[0032] 3. The fan blade wheelbase can be increased or the fan frame volume can be reduced.

[0033] 4. It can effectively prevent the external circuit board from shifting and falling off during electrical connection.

Claims

1. An electrical connection structure for a fan frame, characterized in that, include: A fan frame has an inner circuit board inside and an outer circuit board outside the fan frame. At least one flexible circuit board is overmolded in the fan frame. The flexible circuit board has a first connection portion electrically connected to the inner circuit board and a second connection portion electrically connected to the outer circuit board, so that the flexible circuit board is electrically connected to the inner circuit board and the outer circuit board.

2. The fan frame electrical connection structure of claim 1, wherein: The second connecting part is exposed on the fan frame surface of the fan frame and is electrically connected to the outer circuit board.

3. The fan frame electrical connection structure of claim 1, wherein: At least one joint is formed on the fan frame, and the outer circuit board is positioned outside the fan frame by the joint.

4. The fan frame electrical connection structure of claim 2, wherein: The outer circuit board has a first metal end on one side and a second metal end on the other side opposite to the first metal end, and the second connecting part is connected to the first metal end.

5. The fan frame electrical connection structure of claim 4, wherein: The outer circuit board has a mating portion formed at the second metal end position, which protrudes from the surface of the fan frame.

6. The fan frame electrical connection structure of claim 5, wherein: The first metal end and the second metal end are metal conductors formed by stamping.

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