IP Library Granted Patent US 8,315,747
Granted Patent B2
US 8,315,747 · App. 12/080,599 · Granted Nov 20, 2012

Electronic device comprising fuel cell power system

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Quick Facts
Patent No.
US 8,315,747
App. No.
12/080,599
Granted
Nov 20, 2012
Kind
B2
Abstract

In an electronic device whose source of electric power is a fuel cell and which has a heat radiator that radiates heat by evaporating water generated in accordance with electric power generation of the fuel cell, there are provided a use condition detector that detects use condition of the electronic device, a heat radiation suppression discriminator that discriminates whether to suppress heat radiation by the heat radiator based on use condition detected by the use condition detector, and a heat radiation suppression controller that controls to suppress heat radiation by the heat radiator as a result of the discrimination by the heat radiation suppression discriminator.

Claims (17)

1. An electronic device having a fuel cell as a source of electric power and a heat radiator that radiates heat by evaporating water generated in accordance with electric power generation of the fuel cell, comprising:

a water supplier that supplies the heat radiator with the water generated in accordance with the electric power generation of the fuel cell,

a use condition detector that detects a use condition of the electronic device,

a heat radiation discriminator that determines whether to radiate heat by the heat radiator based on the use condition detected by the use condition detector, and

a heat radiation controller that controls the heat radiation by the heat radiator by controlling the water supply from the water supplier to the heat radiator in accordance with determined results of the heat radiation discriminator,

wherein the use condition detector detects, as the use condition, whether a predetermined duration of time for operating a predetermined function needing much power consumption has elapsed, and the heat radiation discriminator discriminates the heat is to be radiated from the function needing much power consumption when the predetermined duration of time has elapsed; and

wherein the function needing much power consumption is one of a streaming reproduction and a TV function.

2. The electronic device according to claim 1 , wherein the function needing much power consumption comprises the streaming reproduction.

3. The electronic device according to claim 1 , wherein the function needing much power comprises the TV function.

4. A non-transitory computer-readable recording medium encoded with a computer program executed by a computer that causes controlled heat radiation of an electronic device having a fuel cell as a source of electric power, a water supplier that supplies water generated in accordance with electric power generation of the fuel cell and a heat radiator radiating heat by evaporating the water supply by the water supplier, the computer program comprising:

program code executable by the computer for performing a use condition detector function that detects a use condition of the electronic device,

program code executable by the computer for performing a heat radiation discriminating function that determines whether to radiate heat by the heat radiator based on the use condition detected by the use condition detection function, and

program code executable by the computer for performing a heat radiation control function that controls the heat radiator by controlling the water supply from the water supplier to the heat radiator as a result of the determination by the heat radiation discrimination function;

wherein the use condition detecting function detects, as the use condition, whether a predetermined duration of time for operating a predetermined function needing much power consumption has elapsed, and the heat radiation discriminating function discriminates the heat is to be radiated from the function needing much power consumption when the predetermined duration of time has elapsed; and

wherein the function needing much power consumption is one of a streaming reproduction and a TV function.

5. The non-transitory computer-readable medium according to claim 4 , wherein the function needing much power consumption comprises the streaming reproduction.

6. The non-transitory computer-readable medium according to claim 4 , wherein the function needing much power consumption comprises the TV function.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2014
From: NEC CORPORATION
To: LENOVO INNOVATIONS LIMITED (HONG KONG)
Reel/Frame 033720/0767 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2013
From: NEC CASIO MOBILE COMMUNICATION LTD.
To: NEC CORPORATION
Reel/Frame 030258/0429 →
MERGER Recorded Jul 16, 2010
From: CASIO HITACHI MOBILE COMMUNICATIONS, CO., LTD.
To: NEC CASIO MOBILE COMMUNICATIONS, LTD.
Reel/Frame 024700/0299 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 4, 2008
From: SUZUKI, KOJI
To: CASIO HITACHI MOBILE COMMUNICATIONS CO., LTD.
Reel/Frame 020809/0966 →