Method for notifying abnormality in electro device, and electro device

Patent metadata

Field	Value
Publication number	US-9357680-B2
Application number	US-201414177473-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Mar 31, 2009
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

An electronic device including a fan unit capable of setting an air blowing direction toward any of an interface plate side of a casing and a back plate side opposite to the interface plate; a power supply unit; a first housing portion capable of housing the power supply unit and provided within the casing to be close to the back plate; a second housing portion capable of housing the power supply unit and provided within the casing to be close to the interface plate; a detection portion that detects the air blowing direction of the fan unit and a position where the power supply unit is housed; and a warning portion that operates based on the detection portion to give a warning in a case where the air blowing direction of the fan unit is different from the side where the casing houses the power supply unit.

First claim

What is claimed is:

1. A method for notifying abnormality in an electronic device comprising a casing and a fan unit installed in the casing, wherein
in a case where a power supply unit that exhausts air through a first surface side of the casing is inserted into the casing from the first surface side through which the fan unit draws or exhausts air based on an air blowing direction that is set in the fan unit,
the method comprising changing a combination of lighting states of LEDs attached to the first surface side and a back surface side, of the casing, opposite to the first surface side based on whether the air blowing direction is set so as to draw or exhaust air.

2. The method of claim 1 , wherein the changing changes the combination such that the lightning states of one of the LEDs attached to the first surface side and another one of the LEDs attached to the back surface side indicate an abnormal state where the air blowing direction is set in the fan unit so as to draw air through the first surface side of the casing.

3. An electronic device, comprising:
a casing which has a first surface and a second surface;
a fan unit which is installed in the casing and one of draws and exhausts air through the first surface of the casing based on an air blowing direction that is set in the fan unit;
a power supply unit which is installed in the casing and exhausts air through the first surface of the casing;
a first LED which is attached to the first surface of the casing; and
a second LED which is attached to the second surface of the casing,
wherein a combination of lightning state of the first LED and the second LED is changed to a different state based on whether the air blowing direction is set so as to draw or exhaust air.

4. The electronic device of claim 3 , wherein the combination of lightning state of the first LED and the second LED indicates an abnormal state in the case where the air blowing direction is set so as to draw air from the power supply unit.

Assignees

• Fujitsu Ltd

Inventors

• Aruga Kazuhiko
• Sato Eisuke

Classifications

• G08B21/18

  Status alarms (G08B21/02 takes precedence) · CPC title

• H05K7/20727 Primary

  within server blades for removing heat from heat source · CPC title

• H05K7/20736 Primary

  within cabinets for removing heat from server blades · CPC title

• H05K7/20836

  Thermal management, e.g. server temperature control · CPC title