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Patent Searching and Data


Title:
COOLING DEVICE AND ELECTRONIC APPARATUS COMPRISING THE SAME
Document Type and Number:
Japanese Patent JP2006250395
Kind Code:
A
Abstract:

To provide a cooling device and an electronic apparatus loading the same, capable of detecting the shortage in liquid quantity, of liquid refrigerant of the cooling device and preventing an overheated state of a heat generating object caused by impairing of cooling performance.

In this cooling device for a computer device wherein a cooling unit 4, a heat radiator 5, a pump 6 and a reservoir tank 7 for storing the liquid refrigerant are mounted in a circulating passage, the pump 6 circulates the liquid refrigerant with a rotational frequency for determining an alarm zone area or less, the cooler 4 draws heat from CPU 2 by using the liquid refrigerant, and the drawn heat is radiated by the heat radiator 5, a judging means is further mounted for judging the continuation of operation when the rotational frequency of the pump 6 is the rotational frequency for determining the alarm zone or less, and judging the shortage of liquid quantity of the liquid refrigerant when the rotational frequency of the pump 6 is over the rotational frequency for determining the alarm zone.


Inventors:
MATSUDA TOSHIHIKO
NIWATSUKINO YASUSHI
SEGUCHI KAZUHIRO
Application Number:
JP2005065283A
Publication Date:
September 21, 2006
Filing Date:
March 09, 2005
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F25D9/00; G06F1/20; H01L23/473; H05K7/20
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito