Heat sink with heat pipes and method for manufacturing the same
AssigneeFurukawa Electric Co., Ltd.
InventorsKenya KAWABATA, Masaru OOMI, Ryoji OHNO
Life of this patent
Estimating the term…
Abstract
A heat sink to be used with a heat source can include a base portion and a fin portion. The base portion can include a plurality of heat pipes and a space formed at least partially between adjacent heat pipes. The base portion can also include a first plate thermally connected to the heat source and a second plate thermally connected to the fin portion. The plurality of heat pipes contacts the first plate and the second plate. The plurality of heat pipes can also include a first portion that is closer than a second portion to the heat source. Additionally, a distance between adjacent heat pipes is smaller at the first portion than at the second portion.
Claims19
A heat sink for dissipating heat from a heat source, comprising:
- a base portion comprising a first plate member thermally coupled to the heat source, a second plate member, and side wall members, the base portion further comprising, inside thereof,
- a plurality of heat pipes sandwiched between said first plate member and said second plate member so that each of said heat pipes has a first contact surface in contact with said first plate member and a second contact surface in contact with said second plate member, the distance between said first contact surface and second contact surface defining a thickness of said heat pipes, said first contact surface defining a single heat absorbing portion of said heat pipes, said second contact surface defining a single heat dissipating portion of said heat pipes, said heat pipes separated from each other and separated from said side walls so that a first space is formed between each adjacent pair of said heat pipes and a second space is formed between each one of said side walls and each one of said heat pipes adjacent to each one of said side walls, said first and second spaces configured so as to enable air to pass therethrough to enhance heat-releasing efficiency;
- and
- a fin portion externally and thermally connected to said base portion so that the heat from the heat source is diffused over said fin portion by means of said base portion.
A heat sink for dissipating heat from a heat source, comprising:
- a heat spreader thermally coupled to the heat source;
- and
- a fin portion thermally coupled to and externally mounted on said heat spreader in order that the heat from the heat source is diffused over said fin portion by means of said heat spreader;
- wherein said heat spreader is shaped like a base having a first plate member thermally coupled to the heat source, a second plate member, and side wall members, the heat spreader further including, inside thereof,
- a plurality of heat pipes sandwiched between said first plate member and said second plate member so that each of said heat pipes has a first contact surface in contact with said first plate member and a second contact surface in contact with said second plate member, the distance between said first contact surface and second contact surface defining a thickness of said heat pipes, said first contact surface defining a single heat absorbing portion of said heat pipes, said second contact surface defining a single heat dissipating portion of said heat pipes, said heat pipes separated from each other and separated from said side walls so that a first space is formed between each adjacent pair of said heat pipes and a second space is formed between each one of said side walls and each one of said heat pipes adjacent to each one of said side walls, said first and second spaces configured so as to enable air to pass therethrough to enhance heat-releasing efficiency.
A heat sink for dissipating heat from a heat source, comprising:
- a base portion having inside thereof at least one heat pipe, a space formed around part of a peripheral portion of said heat pipe, and a metal block;
- and
- a fin portion externally and thermally connected to said base portion;
- wherein said base portion comprises a first plate member thermally connected to the heat source, and a second plate member thermally connected to said fin portion;
- and
- said at least one heat pipe and said metal block are placed between said first plate member and said second plate member, and are thermally connected to said first plate member and said second plate member.
Dependencies are inferred from the claim text.