[특허]Passive CPU cooling and LCD heating for a laptop computer

Passive CPU cooling and LCD heating for a laptop computer 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H05K-007/20 G02F-001/133
출원번호	US-0538104 (1995-10-02)
발명자 / 주소	Aguilera Rafael E. (Simpsonville SC)
출원인 / 주소	NCR Corporation (Dayton OH 02)
인용정보	피인용 횟수 : 110 인용 특허 : 0

초록 ▼

In a laptop computer, CPU-generated heat is thermally conducted passively to a radiator-like element disposed behind the LCD, which uses the heat to warm the LCD. The CPU is surrounded by a liquid-tight housing containing a biphase coolant. A first tube in fluid communication with an outlet port in the housing conveys heat-vaporized coolant to an input port on the radiator. The coolant flows through a plurality of columns formed in the radiator-like element, transferring heat and condensing in the process. The transferred heat is radiated to the LCD, which is desirably warmed in the process. The condensed coolant is conducted from an export port in the radiator-like element through a second tube to an input port in the housing. A pressure sensor may be included to provide a coolant pressure drop signal that can be used to shutdown the CPU in the event of a coolant leak.

대표청구항 ▼

In a portable computer having a central processor unit (CPU) integrated circuit and a liquid crystal display (LCD), a method for passively warming the LCD with heat generated by the CPU, the method including the following steps: (a) disposing a heat dissipating coolant-conducting element adjacent a rear surface of said LCD, said element having an inlet port and an outlet port; (b) surrounding said CPU with a coolant-containing chamber having an inlet port and an outlet port; (c) providing a first coolant-carrying conductor coupling said outlet port of said coolant-containing chamber with said inlet port of said coolant-conducting element, and providing a second coolant-carrying conductor coupling said outlet port of said coolant-conducting element with said inlet port of said coolant-containing chamber; (d) providing a biphase coolant in at least a portion of a coolant path defined by said coolant-conducting element, the first and second coolant-carrying conductors, and said coolant-containing chamber; wherein heat generated by said CPU is carried by said coolant in the first conductor to said element where at least a portion of said heat warms said LCD, wherein said coolant changes phase and is returned by the second conductor to said chamber at a lower temperature whereat said CPU is cooled.

이 특허를 인용한 특허 (110)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Passive CPU cooling and LCD heating for a laptop computer 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (110)

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연합인증

Passive CPU cooling and LCD heating for a laptop computer 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (110)

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