Electric connection structure of fan

Abstract

The utility model provides a fan electric connection structure which comprises a fan frame body, at least one soft board and at least one outer circuit board, an inner circuit board is arranged in the fan frame body, an inner channel is arranged on the fan frame body, the soft board is arranged in the inner channel of the fan frame body, one end of the soft board is electrically connected with the inner circuit board, and the other end of the soft board is electrically connected with the outer circuit board. The external circuit board is arranged on the outer side of the fan frame body and is electrically connected with the other end of the soft board, so that the assembling time and the assembling cost consumed by arranging and arranging wires and welding the wires one by one in the prior art can be saved, and the condition that the soft 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 a fan electrical connection structure that can eliminate the need for wire routing and wiring and the need for individual welding, thereby saving assembly time and assembly 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, especially fans with dual or more motors, which provide even better forced cooling. However, the control circuit board signals inside the fan generally need to be electrically connected to the motherboard of the 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, which is not convenient for arranging and managing wires. In cases where the arrangement and management of wires is difficult, it is necessary to solder each wire to the gold-fingered printed circuit board, which undoubtedly causes problems such as significantly increasing 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 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 a fan electrical connection structure that can be completely attached to prevent the flexible printed circuit board from falling off due to external force.

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

[0007] To achieve the above objectives, this utility model provides a fan electrical connection structure, including a fan frame, at least one flexible circuit board, and at least one outer circuit board. An inner circuit board is disposed inside the fan frame, and the fan frame has an inner channel that can connect the inside and outside of the fan frame.

[0008] The flexible circuit board is disposed in the inner channel of the fan frame, and a first connection portion is formed at one end of the flexible circuit board to electrically connect the inner circuit board. A second connection portion is formed at the other end of the flexible circuit board to electrically connect the outer circuit board, so that the inner circuit board is electrically connected to the outer circuit board through the flexible circuit board.

[0009] The frame has an outer surface with a groove, and the flexible plate is accommodated in the groove.

[0010] The outer surface is provided with at least one fixing hole, and the outer circuit board is fixed to the fan frame by at least one fixing component through the fixing hole.

[0011] The second connecting part is provided with a connecting connector, and the flexible board is electrically connected to the outer circuit board through the connecting connector.

[0012] The outer circuit board has a first mating part and a second mating part. The first mating part is electrically connected to the second mating part, and the second mating part is exposed outside the fan frame.

[0013] The second docking portion has a plurality of metal terminals.

[0014] The metal terminal is a metal conductor formed by stamping.

[0015] This utility model provides a fan electrical connection structure that uses a flexible circuit board to electrically connect an inner circuit board and an outer circuit board through an internal channel. The outer circuit board is electrically connected to the outside via metal terminals. This effectively saves the assembly time and cost of arranging and wiring wires and soldering them one by one, and also avoids the situation where the flexible circuit board falls off due to external force. Attached Figure Description

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

[0017] Figure 2 This is a three-dimensional exploded view of the fan electrical connection structure of this utility model from another angle.

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

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

[0020] Explanation of reference numerals in the attached drawings: 1. Fan electrical connection structure; 2. Fan frame; 21. Inner circuit board; 22. Outer surface; 22. Connecting protrusion; 221. Fixing hole; 23. Inner channel; 24. Flexible board; 3. Adhesive layer; 31. First connecting part; 32. Second connecting part; 33. Connecting joint; 34. Outer circuit board; 41. First mating part; 42. Second mating part; 42. Metal terminal; 43. Butt hole; 44. Fixing component. 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 , Figure 4 As shown, these are a three-dimensional assembly schematic diagram, a three-dimensional exploded schematic diagram, and a planar sectional schematic diagram of the fan electrical connection structure of this utility model from another angle. As shown in the figure, this utility model provides a fan electrical connection structure 1, which includes: a fan frame 2, at least one flexible board 3, and at least one external circuit board 4.

[0023] The fan frame 2 has at least one internal circuit board 21 inside. In this embodiment, the fan electrical connection structure 1 is illustrated using a dual-motor configuration. The configuration of the fan frame 2 is illustrated by an outer frame containing two internal motors, and the internal circuit board 21 is electrically connected to the two motors, but this is not a limitation. An outer surface 22 is formed on the exterior of the fan frame 2, and at least one fixing hole 23 is formed on the outer surface 22. An internal channel 24 is formed on the fan frame 2, and the internal channel 24 radially connects the interior and exterior of the frame. That is, the internal channel 24 extends outward to the position of the outer surface 22 and inward to the position of the internal circuit board 21.

[0024] The aforementioned flexible board 3 is disposed within the inner channel 24, with one end extending outward through the inner channel 24 and positioned opposite the outer surface 22. An adhesive layer 31 is provided on one side of the flexible board 3, and the flexible board 3 is attached to the outer surface 22 by the adhesive layer 31, allowing it to be completely attached to the outer surface of the fan frame 2. A groove may also be formed on the outer surface 22 for the flexible board 3 to be disposed, and at least one connecting protrusion 221 may be formed on the outer surface 22 for the flexible board 3 to be positioned and assembled. In addition, the flexible board 3 has a first connecting part 32 and a second connecting part 33, and the flexible board 3 is electrically connected to the inner circuit board 21 by the first connecting part 32.

[0025] The outer circuit board 4 is disposed on the fan frame 2, and the outer circuit board 4 has a first mating part 41 and a second mating part 42. The second mating part 42 has a plurality of metal terminals 421, which are metal conductors formed by stamping. The outer circuit board 4 also has at least one mating hole 43, which is connected to the fixing hole 23 and is fixed by at least one fixing component 44. The flexible board 3 is electrically connected to the outer circuit board 4 through the second connecting part 33, so that the outer circuit board 4 is electrically connected to the inner circuit board 21 through the flexible board 3. The second mating part 42 is exposed outside the fan frame 2.

[0026] Furthermore, the specific assembly relationship between the fan frame 2, the flexible circuit board 3, and the outer circuit board 4 is as follows: first, the outer circuit board 4 is assembled on the fan frame 2, and the mating hole 43 is connected to the fixing hole 23. Then, the fixing component 44 is fixed to the outer circuit board 4 on the fan frame 2 through the mating hole 43. Next, the flexible circuit board 3 is placed in the inner channel 24, and the first connecting part 32 is positioned opposite to the inner circuit board 21. The flexible circuit board 3 is then attached to the outer surface 22 with an adhesive layer 31. The first connecting part 32 is then soldered to the inner circuit board 21, and the second connecting part 33 is soldered to the first mating part 41 of the outer circuit board 4, so that the inner circuit board 21 is electrically connected to the outer circuit board 4 through the flexible circuit board 3, allowing the inner circuit board 21 to operate normally.

[0027] Therefore, the fan electrical connection structure 1 of this utility model, through the design of the frame having an inner channel, allows the flexible board 3 to be electrically connected to the inner circuit board 21 and the outer circuit board 4 respectively, thereby saving the assembly time and assembly cost of conventional fans that require arranging, managing and soldering wires one by one. Furthermore, the flexible board 3 is completely attached to the outer surface of the fan frame 2, which can effectively prevent the flexible board 3 from falling off due to external pulling.

[0028] Furthermore, the fan electrical connection structure 1 of this utility model eliminates the need to arrange and manage cables one by one inside the fan frame 2, thereby reducing the space required for cable arrangement inside the fan frame 2. Consequently, in a fan frame 2 of the same size, the original cable management 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.

[0029] like Figure 4 In another embodiment shown, a connector 34 may be provided on the second connecting part 33 of the flexible board 3. The connector 34 is combined with the fan frame 2, and the outer circuit board 4 can be directly plugged into the connector 34, so that the inner circuit board 21 is electrically connected to the outer circuit board 4 through the connector 34 via the flexible board 3.

[0030] Based on the above description, the present invention has the following advantages over the prior art:

[0031] 1. Eliminates the assembly time and cost of conventional fans that require arranging, managing, and soldering wires one by one.

[0032] 2. It can effectively prevent the flexible board from falling off due to external pulling force.

[0033] 3. The fan blade wheelbase can be increased or the fan frame volume can be reduced.

[0034] The present invention has been described in detail above. However, the above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the present invention should still fall within the patent coverage of the present invention.

Claims

1. A fan electrical connection structure, characterized in that, include: A fan frame with an internal circuit board disposed inside. The fan frame has an internal channel that connects the outside of the fan frame with the inside. At least one flexible circuit board is disposed in the inner channel of the fan frame. The flexible circuit board has a first connecting portion electrically connected to the inner circuit board, and a second connecting portion passing through the outside to electrically connect to an outer circuit board, so that the inner circuit board is electrically connected to the outer circuit board through the flexible circuit board.

2. The fan electrical connection structure as described in claim 1, characterized in that: The frame has an outer surface with a groove, and the flexible plate is disposed in the groove.

3. The fan electrical connection structure as described in claim 2, characterized in that: The outer surface is provided with at least one fixing hole, and the outer circuit board is fixed to the fan frame by at least one fixing component through the fixing hole.

4. The fan electrical connection structure as described in claim 1, characterized in that: The second connecting part is provided with a connecting connector, and the flexible board is electrically connected to the outer circuit board through the connecting connector.

5. The fan electrical connection structure as described in claim 1, characterized in that: The outer circuit board has a first mating part and a second mating part, the first mating part being electrically connected to the second mating part, and the second mating part being exposed outside the fan frame.

6. The fan electrical connection structure as described in claim 5, characterized in that: The second mating part has a plurality of metal terminals.

7. The fan electrical connection structure as described in claim 6, characterized in that: The metal terminal is a metal conductor formed by stamping.

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