US2010276134A1PendingUtilityA1

Heat Sink for a RAM

41
Assignee: LEE WEN-YIPriority: Apr 29, 2009Filed: Apr 29, 2009Published: Nov 4, 2010
Est. expiryApr 29, 2029(~2.8 yrs left)· nominal 20-yr term from priority
Inventors:Wen-Yi Lee
H10W 40/641H05K 5/15F28F 3/02
41
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Claims

Abstract

A heat sink for a RAM includes a first and a second heat dissipating plate, on each of which a retaining tongue, a pair of locating tabs, and a catch tab are provided. The retaining tongue includes an expanded head portion and a narrowed root portion, and the head portion is a tab having a specific shape. The catch tab is provided with an expanded through retaining hole and a narrowed through root hole, which are configured to match the shape of the heat portion and the root portion of the retaining tongue, respectively. When the two heat dissipating plates are connected to each other, once the head portions and root portions of the retaining tongues are extended through the corresponding retaining holes and root holes of the catch tabs, the retaining tongues will not unexpectedly separate from the catch tabs.

Claims

exact text as granted — not AI-modified
1 . A heat sink for a RAM, comprising:
 a first and a second heat dissipating plate, each of which being provided along an edge thereof with an elongated flange; at least one retaining tongue and at least one pair of locating tabs being formed on a free edge of each of the elongated flanges near one of two ends thereof, and at least one catch tab being formed on the free edge of each of the elongated flanges near the other end thereof, such that the retaining tongue and the pair of locating tabs on the first heat dissipating plate are aligned with the catch tab on the second heat dissipating plate, and the catch tab on the first heat dissipating plate is aligned with the retaining tongue and the pair of locating tabs on the second heat dissipating plate;   each of the retaining tongues including a narrowed root portion and an expanded head portion, the root portion being extended from the free edge of the elongated flange to incline forward and downward, and the head portion being extended from a distal end of the root portion and having a specific shape:   the two locating tabs in each pair being spaced along the free edge of the elongated flange to locate at two opposite lateral sides of one retaining tongue, such that a receiving space is formed between each lateral side of the retaining tongue and one locating tab; and each of the locating tabs being bent at a joint with the elongated flange to have a downward inclined section; and   each of the catch tabs being configured for fitly locating in the space between two paired locating tabs, and also being bent at a joint with the elongated flange to have a downward inclined section; an expanded through retaining hole and a narrowed through root hole being formed on each of the catch tabs and configured to match the shape of the head portion and the root portion, respectively.   
     
     
         2 . The heat sink for a RAM as claimed in  claim 1 , wherein each of the first and the second heat dissipating plate is provided with one retaining tongue, one pair of locating tabs, and one catch tab. 
     
     
         3 . The heat sink for a RAM as claimed in  claim 1 , wherein each of the head portions is a tab. 
     
     
         4 . The heat sink for a RAM as claimed in  claim 1 , wherein each of the head portions is of T-shaped. 
     
     
         5 . The heat sink for a RAM as claimed in  claim 2 , wherein each of the head portions is of T-shaped. 
     
     
         6 . The heat sink for a RAM as claimed in  claim 3 , wherein each of the head portions is of T-shaped. 
     
     
         7 . The heat sink for a RAM as claimed in  claim 1 , wherein each of the head portions is of L-shaped. 
     
     
         8 . The heat sink for a RAM as claimed in  claim 2 , wherein each of the head portions is of L-shaped. 
     
     
         9 . The heat sink for a RAM as claimed in  claim 3 , wherein each of the head portions is of L-shaped. 
     
     
         10 . The heat sink for a RAM as claimed in  claim 1 , wherein each of the head portions is of round-shaped. 
     
     
         11 . The heat sink for a RAM as claimed in  claim 2 , wherein each of the head portions is of round-shaped. 
     
     
         12 . The heat sink for a RAM as claimed in  claim 3 , wherein each of the head portions is of round-shaped. 
     
     
         13 . A heat dissipating plate for heat sink for a RAM, comprising:
 a long plate being provided along one of two longer edges thereof with an elongated flange; at least one retaining tongue and at least one pair of locating tabs being formed on a free edge of the elongated flange near one of two ends thereof, and at least one catch tab being formed on the free edge of the elongated flanges near the other end thereof; the retaining tongue including a narrowed root portion and an expanded head portion, the root portion being extended from the free edge of the elongated flange to incline forward and downward; and the head portion being extended from a distal end of the root portion and having a specific shape;   the two locating tabs in each pair being spaced along the free edge of the elongated flange to locate at two opposite lateral sides of one retaining tongue, such that a receiving space is formed between each lateral side of the retaining tongue and one locating tab; and each of the locating tabs being bent at a joint with the elongated flange to have a downward inclined section; and   the catch tab being configured for fitly locating in the space between two paired locating tabs, and also being bent at a joint with the elongated flange to have a downward inclined section; an expanded through retaining hole and a narrowed through root hole being formed on the catch tab and configured to match the shape of the head portion and the root portion, respectively.   
     
     
         14 . The heat dissipating plate for heat sink for a RAM as claimed in  claim 13 , wherein the elongated flange is formed with one retaining tongue, one pair of locating tabs, and one catch tab. 
     
     
         15 . The heat dissipating plate for heat sink for a RAM as claimed in  claim 13 , wherein the head portion is a tab. 
     
     
         16 . The heat dissipating plate for heat sink for a RAM as claimed in  claim 13 , wherein the head portion is of T-shaped. 
     
     
         17 . The heat dissipating plate for heat sink for a RAM as claimed in  claim 14 , wherein the head portion is of T-shaped. 
     
     
         18 . The heat dissipating plate for heat sink for a RAM as claimed in  claim 15 , wherein the head portion is of T-shaped.

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