JP2011112330A5

JP2011112330A5 -

Info

Publication number: JP2011112330A5
Application number: JP2009271445A
Authority: JP
Filing date: 2009-11-30
Publication date: 2012-09-20
Anticipated expiration: 2029-11-30

Description

上記の従来技術の課題を解決するため、本発明の一形態によれば、金属製の密閉容器の内壁に形成されたウイック層を備え、前記密閉容器の内部に作動流体を封入してなる放熱部品であって、前記ウイック層は、銅粉末を焼結してなる第１のウイックと、カーボンナノチューブ又はカーボンナノファイバが混入された銅めっき層からなり、前記第１のウイック内の空隙を部分的に充填するとともに前記第１のウイックの表層部分を覆うように形成された第２のウイックとが複合された構造からなることを特徴とする放熱部品が提供される。 In order to solve the above-described problems of the prior art, according to one aspect of the present invention, the heat dissipation is provided by including a wick layer formed on the inner wall of a metal hermetic container and enclosing a working fluid inside the hermetic container. The wick layer is composed of a first wick obtained by sintering copper powder and a copper plating layer mixed with carbon nanotubes or carbon nanofibers, and the voids in the first wick are partially formed. In addition, a heat dissipating component is provided which has a structure in which the second wick formed so as to cover and cover the surface layer portion of the first wick is combined.

また、本発明の他の形態によれば、金属製の密閉容器の内壁に形成されたウイック層を備え、前記密閉容器の内部に作動流体を封入してなる放熱部品を製造する方法において、
前記ウイック層を形成する工程が、前記密閉容器として所要の形状に成形される前の状態にある金属板の一方の面に、銅粉末を堆積させ焼結して第１のウイックを形成する工程と、カーボンナノチューブ又はカーボンナノファイバを分散させためっき液を用いて、前記第１のウイック内の空隙を部分的に充填するとともに前記第１のウイックの表層部分を覆うように第２のウイックを形成する工程とを含むことを特徴とする放熱部品の製造方法が提供される。 According to another aspect of the present invention, in the method of manufacturing a heat dissipation component comprising a wick layer formed on the inner wall of a metal sealed container, and enclosing a working fluid inside the sealed container,
The step of forming the wick layer is a step of forming a first wick by depositing and sintering copper powder on one surface of the metal plate in a state before being formed into a required shape as the sealed container. And using a plating solution in which carbon nanotubes or carbon nanofibers are dispersed, the gap in the first wick is partially filled and the second wick is covered so as to cover the surface layer portion of the first wick. The manufacturing method of the thermal radiation component characterized by including the process of forming is provided.

Claims

A heat dissipating component comprising a wick layer formed on the inner wall of a metal hermetic container and enclosing a working fluid inside the hermetic container,
The wick layer is
A first wick obtained by sintering copper powder;
A second wick made of a copper plating layer mixed with carbon nanotubes or carbon nanofibers, partially filling the voids in the first wick and covering the surface portion of the first wick And
A heat dissipating part characterized by comprising a composite structure.

A heat dissipating component comprising a wick layer formed on the inner wall of a metal hermetic container and enclosing a working fluid inside the hermetic container,
The wick layer is a sintered wick layer obtained by sintering a copper powder mixed with carbon nanotubes or carbon nanofibers.

The said wick layer is formed in the location corresponding to the part on the inner wall of the said airtight container corresponding to the part in which the said heat radiating component exchanges heat with the exterior. Heat dissipation parts.

In a method of manufacturing a heat dissipating component comprising a wick layer formed on the inner wall of a metal sealed container and enclosing a working fluid inside the sealed container,
The step of forming the wick layer is a step of forming a first wick by depositing and sintering copper powder on one surface of the metal plate in a state before being formed into a required shape as the sealed container. And using a plating solution in which carbon nanotubes or carbon nanofibers are dispersed, the gap in the first wick is partially filled and the second wick is covered so as to cover the surface layer portion of the first wick. And a process for forming the heat dissipation component.

In a method of manufacturing a heat dissipating component comprising a wick layer formed on the inner wall of a metal sealed container and enclosing a working fluid inside the sealed container,
The process of forming the wick layer is a mixture of copper powder and carbon nanotubes or carbon nanofibers on one side of the metal plate in a state before being formed into a required shape as the sealed container using a dry process. A method of manufacturing a heat-radiating component, comprising a step of forming a sintered wick layer by closely bonding a body.

In the dry process, copper powder and carbon nanotubes or carbon nanofibers are uniformly mixed by a high-speed gas mixing method, and copper pulse electric current sintering is used to press the mixture against one surface of the metal plate. The method of manufacturing a heat-radiating component according to claim 5, further comprising a process of sintering while closely contacting.