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Fan

Inactive Publication Date: 2013-10-03
HON HAI PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present patent is about a fan that is powered by a rechargeable battery and controlled by a controller. The controller receives a voltage from the motherboard when the motherboard is powered on and controls the fan motor to operate. The fan motor has a preset timing value for when it should stop working, and the controller turns off the switch when the fan motor reaches the preset timing value to prevent the rechargeable battery from providing voltage to the fan motor. This helps to cool the electronic devices and prevent overheating, which can shorten their lifespan. The technical effect of this invention is to improve the cooling efficiency of electronic devices and prolong their lifespan.

Problems solved by technology

Thus, remaining heat will not be readily dissipated.
Accordingly, components in the electronic devices may become overheated after the electronic devices are powered off, which shortens the life of the components.

Method used

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Embodiment Construction

[0007]The disclosure, including the drawing, is illustrated by way of example and not by way of limitation. References to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.

[0008]The figure, is a fan 100 in accordance with an exemplary embodiment including a controller 10, a switch 20, a rechargeable battery 30, a fan motor 40, and an interface 50 connected to a motherboard 200. The controller 10 includes a storage unit 11, a timer 12, a control unit 13, and a charging unit 14. The storage unit 11 stores a saturation voltage value of the rechargeable battery 30 when the rechargeable battery 30 is charged fully and a preset timing value. The charging unit 14 charges the rechargeable battery 30 when a voltage of the rechargeable battery 30 is less than the saturation voltage value of the rechargeable battery 30, after the motherboard 200 is powered on. The timer 12 is used for counting a working time of the fan...

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PUM

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Abstract

A fan includes an interface connected to a motherboard, a fan motor, a battery, a switch connected to the battery, and a controller connected to the interface, the fan motor, the switch, and the battery. The controller includes a storage unit to store a preset timing value, a timer to count a working time of the fan motor after the motherboard is powered off, and a control unit. When the motherboard is powered on, the control unit receives a voltage from the motherboard and outputs the voltage to the fan motor. When the motherboard is powered off, the control unit controls the switch to be turned on. The battery provides a voltage to the fan motor. The control unit controls the switch to be turned off when a working time of the fan motor reaches the preset timing value.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to a fan.[0003]2. Description of Related Art[0004]Various electronic devices, such as personal computers and media players, generate heat during operation. Accordingly, the electronic devices must be cooled to prevent overheating. Fans are often incorporated as heat dissipating methods. Many fans are powered by the electronic devices, when the electronic devices are turned off, the fans will stop operating. Thus, remaining heat will not be readily dissipated. Accordingly, components in the electronic devices may become overheated after the electronic devices are powered off, which shortens the life of the components. Therefore, there is room for improvement in the art.BRIEF DESCRIPTION OF THE DRAWING[0005]Many aspects of the embodiments can be better understood with reference to the following drawing. The components in the drawing are not necessarily drawn to scale, the emphasis instead being placed upon clearly ...

Claims

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Application Information

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IPC IPC(8): F04D25/06
CPCF04D29/601F04D25/0673
Inventor CHANG, YAO-TING
Owner HON HAI PRECISION IND CO LTD
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