Title: Heat sink assembly mounting electric circuit boards

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Claims: I claim:

1. A heat sink assembly for mounting electric circuit boards, comprising at least a pair of spaced parallel vertical metal plates (2, 4 in FIG. 2; 60, 70 in FIG. 5), a pair of spaced horizontal top and bottom metal plates (10, 30 in FIG. 2; 90, 80 in FIG. 5) in good thermal contact with at least one of said vertical plates, a horizontal circuit board (B in FIG. 2; 78 in FIG. 5) supported by said assembly and spaced from and disposed between said top and bottom plates, and a heat generating electrical circuit element (A in FIG. 2; 68 in FIG. 5) spaced between said vertical plates and disposed above said horizontal circuit board, said verticl and horizontal metal plates providing a heat sink for said element, said top plate and said horizontal circuit board and said at least a pair of spaced parallel vertical metal plates defining between them a channel whose upper side is closed by said top plate and which contains said circuit element, there being a second channel between said horizontal circuit board and said bottom plate, said bottom plate closing the lower side of said second channel, whereby said vertical and horizontal metal plates provide electrostatic shielding for said circuit element and said horizontal circuit board.

2. A heat sink assembly as claimed in claim 1, said element comprising a vertical circuit board parallel to said vertical plates.

3. A heat sink assembly as claimed in claim 2, and a socket (C in FIG. 2; 79 in FIG. 5) on the upper surface of said horizontal circuit board, the lower edge of said vertical circuit board being disposed in said socket.

4. A heat sink assembly as claimed in claim 2, there being a plurality of said vertical circuit boards with said vertical plates between them.

5. A heat sink assembly as claimed in claim 1, and cooling fins on the outer surfaces of at least some of said plates.

6. A heat sink assembly as claimed in claim 1, in which said plates are aluminum extrusions.

7. A heat sink assembly as claimed in claim 1, in which said top plate is of T-shaped cross-sectional configuration with a horizontal portion that bridges between said vertical plates and a downwardly extending vertical portion (13 in FIG. 2; 92 in FIG. 5) to which said element is secured.

8. A heat sink assembly as claimed in claim 1, and external ribs (86) on the underside of said bottom metal plate to provide space for cooling flow of air.

Other info:

Inventors: Gabr, Saad Zaghloul Mohamed (Canterbury, EN)

Application Number: 695569
Filing Date: 1976-06-14
Publication_date: 1978-06-20
Assignee: A.R.D. Anstalt (Vaduz, FL)
Primary Class(es): 361/690 361/716, 361/800
Other Classes:
US Patent Ref:

3141998	Jul, 1964	Silkman	361/386.
3169214	Feb, 1965	Whitehorn	361/383.
3364395	Jan, 1968	Donofrio	361/386.
3383565	May, 1968	Gritton	361/412.
3852643	Dec, 1974	Seki	174/16.
3956675	May, 1976	Bauer	361/386.

Other Refs:
Primary Examiner: Tolin, Gerald P.
Assistant Examiner:
Attorney: Young & Thompson