Heat dissipation device

[0001]FIG. 1 is a front, right and bottom perspective view of a heat dissipation device showing our new design;

[0002]FIG. 2 is a rear, left and top perspective view thereof;

[0003]FIG. 3 is a front view thereof;

[0004]FIG. 4 is a rear view thereof;

[0005]FIG. 5 is a left side view thereof;

[0006]FIG. 6 is a right side view thereof;

[0007]FIG. 7 is a top view thereof;

[0008]FIG. 8 is a bottom view thereof;

[0009]FIG. 9 is an enlarged view of an encircled portion 9 of FIG. 1;

[0010]FIG. 10 is an enlarged view of an encircled portion 10 of FIG. 1;

[0011]FIG. 11 is an enlarged view of an encircled portion 11 of FIG. 2; and,

[0012]FIG. 12 is an enlarged view of an encircled portion 12 of FIG. 1.

[0013]The broken lines depict portions of the heat dissipation device in which the design is embodied that form no part of the claimed design. The dash-dot lines illustrate the bounds of the enlarged views and form no part of the claimed design.