Combination sink

#(a) Field of the Invention

#The present invention is related to a combination sink, and more particularly, to one that has the multiple heat sinks overlapped on one another to allow easy assembly, lower production cost and promoted production capacity.

#(b) Description of the Prior Art

#FIG. 1 is an exploded view of a preferred embodiment of the present invention.

#FIG. 2 is a schematic view showing the formation of a tab and a latch of the preferred embodiment of the present invention.

#FIG. 3 is another schematic view showing the formation of a tab and a latch of the preferred embodiment of the present invention.

#Referring to FIG. 1 for a preferred embodiment of the present invention, a combination sink 10 is comprised of multiple heat sinks 11 overlapped on one another in a deck. Each heat sink 11 is made of sheet metal and includes a base plate 111 and two sidewalls 112 respectively provided on both longer sides of the plate 111. One or more than one tab 113 is provided at where appropriately on the side wall 112. Also as illustrated in FIGS. 2 and 3, the heat sink 11 is forthwith formed by pressing the sheet metal. The tab 113 extends towards the inner side of the heat sink 11 and is disposed in parallel with the base plate 111. A slot 114 is provided on the tab 113 in parallel with longer sides of the tab 113. A latch 115 having an arrow shape tip is provided on the base plate 111 at where corresponds to the tab 113. The latch 115 folds downward once it is inserted through the slot 114 of the tab 113 from another heat sink 11 below to hold both heat sinks 11 in position.

#Depending on the size of the space available for the installation of the sink 10, the quantity of the heat sink 11 is determined. All the heat sinks 11 are overlapped on one another in sequence to form a deck as illustrated in FIGS. 4 and 5. Wherein, the latch 115 bent over downward from the base plate 111 of the upper heat sink 11 is inserted through the slot 114 on the tab 113 of the lower heat sink 11 for both of the tab 113 and the latch 115 to lock to each other so that both of the upper and the lower heat sinks are close secured in the deck. A proper space is defined by the side walls 112 of each heat sink 11 to provide good cooling channel between any two abutted heat sinks 11, thus to enable each base plate 111 of the heat sink to provide optimal cooling effect.

#The present invention for eliminating an insertion board to penetrate through all the heat sinks and a locking cover plate as required by the prior art gives the benefits of lower production cost, easier assembly process and improved production capacity.