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Fan

A fan and fan frame technology, which is applied to electromechanical devices, electrical components, liquid fuel engines, etc., can solve the problem of reducing the operating efficiency of the motor 13 or even the axial flow fan, the working area of ​​the fan blade 123 cannot be improved, and the axial flow fan 1. The volume cannot be reduced, etc., to achieve the effect of improving the fan characteristics and heat dissipation efficiency, improving the operation and heat dissipation efficiency, and increasing the working area

Active Publication Date: 2009-06-10
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing circuit board 14 and the motor 13 are arranged in the fan frame 11 together, so the heat generated by the circuit board 14 is not easily removed and accumulated between the circuit board 14 and the motor 13, thereby greatly reducing the motor 13 and even the axial flow. Operational performance of fan 1
Since the rotating shaft 121 passes through the center of the circuit board 14, the circuit board 14 can only be arranged in a ring shape and cannot be reduced in size, and the impeller 12 needs to cover the entire circuit board 14, so that the hub (hub) 122 needs to maintain a certain size, and the fan blade 123 Work area cannot be increased
Moreover, a certain distance must be maintained between the circuit board 14 and the motor 13, so the volume of the axial flow fan 1 cannot be reduced.
In addition, when the circuit board 14 is damaged, because the circuit board 14 is fixed in the hub 122, the entire axial flow fan 1 must be disassembled before maintenance or rework, which greatly increases maintenance costs and time

Method used

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Examples

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no. 1 example

[0036] Please refer to figure 2 As shown, the fan 2 of the present invention includes a frame 21, an impeller 22, a motor 23, and a circuit board 24. The fan 2 may be an outer rotor type fan, more specifically, an axial flow fan or a side blowing fan.

[0037] The fan frame 21 has a receiving groove 211 on the wall, and the receiving groove 211 can be provided on the inner side wall, the outer side wall, the top structure or the bottom structure of the fan frame 21. In this embodiment, the receiving groove 211 is exposed. It is provided on the outer surface S1 of the fan frame 211 as an example for illustration, but it is not intended to limit the present invention.

[0038] The impeller 22 is arranged in the fan frame 21, and the motor 23 is accommodated in the impeller 22. The motor 23 has a rotor structure 231 and a stator structure 232, and the rotor structure 231 is connected and drives the impeller 22 to rotate. In addition, the motor 23 may be electrically connected to the...

no. 2 example

[0046] Please refer to image 3 As shown, the difference between the second embodiment of the present invention and the first embodiment is that the fan frame 31 of the fan 3 is formed by connecting two shells 31a and 31b, and the circuit board 34 is disposed on the top side structure surface S2 of the fan frame 31 And the setting method of the circuit board 34 can be a pluggable setting. In addition, in the preferred embodiment, the impeller 32 has centrifugal or side-blown blades, and is arranged in the fan frame 31. The motor 33 is accommodated in the impeller 32 and has a stator structure 332 and a rotor structure 331. The aforementioned fan 2 may also have the same effect as the above.

no. 3 example

[0048] Please refer to Figure 4 As shown, the difference between the third embodiment of the present invention and the foregoing embodiments is that the receiving slot 411 of the fan frame 41 is a slot, and the receiving slot 411 has at least one terminal 412, and the circuit board 44 also has at least A terminal 442, in which the number of terminals 412 and 442 may be one or more. The circuit board 44 is hot-swappable in the accommodating slot 411, and is connected to the terminal 412 in the accommodating slot 411 of the fan frame 41 through a terminal 442 to be electrically connected to a motor (not shown). It should be noted that the position of the accommodating slot 411 is not limited to this embodiment, and the convenience of operation is a priority consideration.

[0049] Since the circuit board 44 is inserted into the accommodating slot 411 for additional protection, and the circuit board 44 and the accommodating slot 411 can be separated and combined with each other, the ...

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PUM

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Abstract

The present invention discloses a fan including a fan frame, a blade wheel, a motor and a circuit board, wherein the blade wheel is mounted inside the fan frame; the motor set inside the fan frame, connect and drive the blade wheel rotate; the circuit board set on the wall of the fan frame, and electrically connected with the motor.

Description

Technical field [0001] The invention relates to a fan. Background technique [0002] With the miniaturization and high-function development of electronic products, the demand for heat dissipation has also increased, so that the heat dissipation technology must be accompanied by the development of electronic products to improve the heat dissipation efficiency. Due to the advantages of low cost and mature technology, fans have been widely used as heat sinks. [0003] Please refer to figure 1 As shown, the existing axial fan 1 includes a fan frame 11, an impeller 12, a motor 13 and a circuit board 14. The impeller 12, the motor 13 and the circuit board 14 are coaxially arranged in the fan frame 11, and the motor 13 and the circuit board 14 are assembled first and then placed in the fan frame 11 together. [0004] However, the existing circuit board 14 and the motor 13 are arranged together in the fan frame 11, so the heat generated by the circuit board 14 is not easily removed and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D25/06F04D29/42F04D29/52H02K7/14
Inventor 蔡明熹黄躍龙林祖亮黄庆祥
Owner DELTA ELECTRONICS INC