Fan control system and fan controlling method thereof

Patent metadata

Field	Value
Publication number	US-9429148-B2
Application number	US-201313831069-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	May 21, 2012
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A fan control system and a fan controlling method thereof are disclosed. The fan control system is used to an electronic apparatus for controlling an air pump fan device. The fan controlling method includes following steps: setting a plurality of vibrating working periods of the air pump fan device; setting a plurality of vibrating frequencies of the air pump fan device, wherein each vibrating frequency has a different vibrating frequency value; detecting a temperature of the electronic apparatus; determining whether the temperature of the electronic apparatus exceeding a first setting temperature; and if yes, controlling the air pump fan device to vibrate according to the plurality of vibrating frequencies during the plurality of vibrating working periods, wherein adjacent vibrating working periods of the plurality of vibrating working periods correspond to different vibrating frequency values.

First claim

What is claimed is:

1. A fan controlling method for controlling an air pump fan device in an electronic apparatus, wherein the air pump fan device is installed in the electronic apparatus, the method comprising:
setting a plurality of vibrating working periods of the air pump fan device; setting a plurality of vibrating frequencies of the air pump fan device, wherein each vibrating frequency has a different vibrating frequency value;
setting a stop working period with a fixed stop working period time value or a plurality of stop working periods with different stop working time values between adjacent vibrating working periods of the plurality of vibrating working periods;
detecting a temperature of the electronic apparatus;
determining whether the temperature of the electronic apparatus exceeds a first predetermined temperature;
if the temperature exceeds the first predetermined temperature, controlling the air pump fan device to vibrate according to the plurality of vibrating frequencies during the plurality of vibrating working periods, wherein adjacent vibrating working periods of the plurality of vibrating working periods correspond to different vibrating frequency values; and
controlling the air pump fan device to stop vibration during the stop working period with the fixed stop working period time value or the plurality of stop working periods with different stop working time values.

2. The fan controlling method as claimed in claim 1 , wherein each of the plurality of vibrating working periods has a different vibrating working time value.

3. The fan controlling method as claimed in claim 2 , wherein the vibrating working time values of the plurality of vibrating working periods are varied in random in a predetermined range or varied according to a predetermined vibrating working period ordering sequence for the vibrating working time values.

4. The fan controlling method as claimed in claim 3 , wherein the plurality of vibrating frequencies are varied in random in a predetermined range or varied according to a predetermined vibrating frequency ordering sequence for the vibrating frequency values.

5. The fan controlling method as claimed in claim 1 , wherein the plurality of vibrating frequencies are of a fixed frequency value, and each of the plurality of vibrating working periods has a fixed vibrating working time value.

6. The fan controlling method as claimed in claim 1 , wherein the plurality of vibrating frequencies are varied in random in a predetermined range or varied according to a predetermined vibrating frequency ordering sequence for the vibrating frequency values.

7. The fan controlling method as claimed in claim 1 , further comprising:
after controlling the air pump fan device to vibrate, determining whether the temperature of the electronic apparatus is lower than a second predetermined temperature, wherein the first predetermined temperature is higher than the second predetermined temperature; and
if yes, stopping to vibrate the air pump fan device.

8. A fan control system used in an electronic apparatus for controlling an air pump fan device, wherein the air pump fan device is installed in the electronic apparatus, the fan control apparatus comprising:
a temperature sensing module for detecting a temperature in the electronic apparatus; and
a control module electrically connected to the temperature sensing module and the air pump fan device for setting a plurality of vibrating working periods and a plurality of vibrating frequencies of the air pump fan device, wherein each of the plurality of vibrating frequencies has a different vibrating frequency value, and setting a stop working period with a fixed stop working period time value or a plurality of stop working periods with different stop working time values between two adjacent vibrating working periods of the plurality of working periods;
wherein when the temperature in the electronic apparatus exceeds a first predetermined temperature, the control module generates a control signal for controlling the air pump fan device to vibrate during the plurality of vibrating working periods according to the plurality of vibrating frequencies and controlling the air pump fan device to stop vibration during the stop working period with the fixed stop working period time value or the plurality of stop working periods with different stop working time values, wherein adjacent vibrating working periods of the plurality of vibrating working periods corresponds to different vibrating frequency values.

9. The fan control system as claimed in claim 8 , wherein each of the plurality of vibrating working periods has a different vibrating working time value.

10. The fan control system as claimed in claim 9 , wherein the plurality of vibrating working periods are varied in random in a predetermined range or varied according to a predetermined vibrating working period ordering sequence for the vibrating working time values.

11. The fan control system as claimed in claim 10 , wherein the plurality of vibrating frequencies are varied in random in a predetermined range or varied according to a predetermined vibrating frequency ordering sequence for the vibrating frequency values.

12. The fan control system as claimed in claim 8 , wherein:
the plurality of vibrating frequencies are all of a fixed frequency value; and
each of the plurality of vibrating working periods has a fixed vibrating working time value.

13. The fan control system as claimed in claim 8 , wherein the plurality of vibrating frequencies are varied in random in a predetermined range or varied according to a predetermined vibrating frequencies ordering sequence for the vibrating frequency values.

14. The fan control system as claimed in claim 8 , wherein after controlling the air pump fan device to vibrate, the control module further determines whether the temperature in the electronic apparatus is lower than a second predetermined temperature, the first predetermined temperature being higher than the second predetermined temperature; and if yes, the control module stops vibrating the air pump fan device.

15. A fan control system used in an electronic apparatus for controlling an air pump fan device, wherein the air pump fan device is installed in the electronic apparatus, the fan control apparatus comprising:
a temperature sensing module for detecting a temperature in the electronic apparatus; and
a control module electrically connected to the temperature sensing module and the air pump fan device for setting a plurality of vibrating working periods and a plurality of vibrating frequencies of the air pump fan device, wherein adjacent vibrating working periods of the plurality of vibrating working periods correspond to different vibrating working time values, each of the plurality of vibrating frequencies has a different vibrating frequency value; wherein the plurality of vibrating working periods are varied in random in a predetermined range or varied according to a predetermined vibrating working period ordering sequence for the vibrating working time values;
wherein when the temperature in the electronic apparatus exceeds a first predetermined temperature, the control module generates a control signal for controlling the air pump fan device to vibrate during the plurality of vibrating working periods according to the plurality of vibrating frequencies, wherein adjacent vibrating working periods of the plurality of vibrating working periods correspond to different vibrating frequency values.

Assignees

• Wistron Corp

Inventors

• Chang Yao-Tsung
• Chen Ming-Chih
• Li Al-Tsung
• Chou Wei-Cheng

Classifications

• F04D27/004 Primary

  by varying driving speed · CPC title

• H01L41/042

  Electricity · mapped topic

• F04D15/00

  Control, e.g. regulation, of pumps, pumping installations or systems · CPC title

• F04B17/003 Primary

  driven by piezoelectric means (F04B43/046 and F04B43/095 take precedence) · CPC title

• H01L41/06

  Electricity · mapped topic