Heat sink
A heat sink includes a plurality of metal plate members fastened together in a stack. Each metal plate member includes a main body, a first sidewall extending from a first side of the main body and having a through hole, a second sidewall extending from a second side of the main body, a retaining lug extending from the first sidewall and having a retaining hole, and a protrusion suspended in the through hole such that the retaining lug of one metal plate member is insertable into the through hole of another metal plate member, and the protrusion of one metal plate member is engageable into the retaining hole of the retaining lug of another metal plate member.
Latest Yuh-Cheng Chemical Ltd. Patents:
1. Field of the Invention
The present invention relates to a heat sink for dissipating heat from a heat source and more particularly, to such a heat sink, which has a tight structure and is easy to install.
2. Description of the Related Art
The present invention has been accomplished under the circumstances in view. It is the main object of the present invention to provide a heat sink, which has a tight structure and is easy to install.
To achieve this object of the present invention, the heat sink comprises a plurality of metal plate members fastened together in a stack. Each metal plate member comprises a main body, a first sidewall extending from a first side of the main body and having a through hole, a second sidewall extending from a second side of the main body, a retaining lug extending from the first sidewall and having a retaining hole, and a protrusion suspended in the through hole such that the retaining lug of one metal plate member is insertable into the through hole of another metal plate member, and the protrusion of one metal plate member is engageable into the retaining hole of the retaining lug of another metal plate member.
BRIEF DESCRIPTION OF THE DRAWINGS
Referring to
Two semicircle-shaped retaining lugs 32 are bilaterally downwardly extending from the first sidewall 30, each having a retaining hole 33. The first sidewall 30 has four bottom notches 34 respectively disposed at two opposite lateral sides of each of the retaining lugs 32. The first sidewall further has two through holes 35, which are U-shaped slots disposed adjacent to the main body 22 and respectively spaced above the retaining lugs 32.
The second sidewall 40 has two retaining lugs 42 and two through holes 45 corresponding to the retaining lugs 32 and through holes 35 of the first sidewall 30. The retaining lugs 42 each have a retaining hole 43. Four bottom notches 44 are respectively disposed at two sides of each of the retaining lugs 32.
Further, the main body 22 has four protrusions 36, 46, which suspend respectively in the through holes 35, 45 of the sidewalls 30, 40.
Referring to
The present invention may be variously embodied. In the aforesaid embodiment, the first sidewall and the second sidewall are provided at two opposite lateral sides of the main body. Alternatively, the first sidewall and the second sidewall can be provided at two adjacent sides of the main body. Further, the retaining lugs, the through holes, the retaining holes, or the protrusions may be variously shaped. The number or locations of the retaining lugs may be changed to fit different requirements.
Although particular embodiments of the invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the invention. For example, the first sidewall and the second sidewall may be respectively perpendicularly extending from two adjacent sides of the body. Accordingly, the invention is not to be limited except as by the appended claims
Claims
1. A heat sink comprising a plurality of metal plate members fastened together in a stack, each said metal plate member comprising a main body, a first sidewall extending from a first side of said main body and having a through hole, a second sidewall extending from a second side of said main body, a retaining lug extending from said first sidewall and having a retaining hole, and a protrusion suspended in said through hole such that the retaining lug of one said metal plate member is insertable into the through hole of another said metal plate member and the protrusion of one said metal plate member is engageable into the retaining hole of the retaining lug of another said metal plate member.
2. The heat sink as claimed in claim 1, wherein each said metal plate member further comprises two bottom notches respectively disposed at two sides of said retaining lug.
3. The heat sink as claimed in claim 1, wherein said retaining lug has a semicircular shape.
4. The heat sink as claimed in claim 1, wherein said protrusion has a rectangular shape.
5. The heat sink as claimed in claim 1, wherein said retaining hole has a rectangular shape.
6. The heat sink as claimed in claim 1, wherein said retaining hole has a semicircular shape.
Type: Application
Filed: Jan 24, 2005
Publication Date: Jul 27, 2006
Applicant: Yuh-Cheng Chemical Ltd. (Taipei City)
Inventor: Yen-Hsun Chou (Taoyuan County)
Application Number: 11/039,853
International Classification: F28F 7/00 (20060101);