Title:
FAN UNIT
Document Type and Number:
Japanese Patent JPH05145260
Kind Code:
A
Abstract:
PURPOSE: To reduce cost of the device, improve the noise property, cope with it easily even in the case that all fans are not connected, improve the productivity, find out an abnormal place easily even in the computer system wherein a plurality of fan units are used, and shorten the maintenance time, by obviating connection cables.
CONSTITUTION: This unit has a plurality of fans 2, which have revolution abnormality detecting means A for detecting the abnormality of revolution by the output of a level, and an alarm processing circuit 3, which processes the abnormality alarm from the revolution detecting means A, and a plurality of fans 2 and the alarm processing circuit 3 are arranged inside the same unit 1.
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Inventors:
YAMANAKA TOSHIFUMI
Application Number:
JP30755091A
Publication Date:
June 11, 1993
Filing Date:
November 22, 1991
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F24F7/007; H05K7/20; (IPC1-7): F24F7/007; H05K7/20
Attorney, Agent or Firm:
Mamoru Takada (1 person outside)