Heat dissipation structure

A heat dissipation structure, adapted to accommodate a fluid and thermally contact at least one heat source, comprising:

• a heat conductive plate thermally contacting the at least one heat source at a heat absorbing edge which is opposite a condensing edge in a transverse direction, and the heat conductive plate having a fluid storage chamber, and
• a plurality of split structures dent on the heat conductive plate so as to divide the fluid storage chamber into a plurality of wider channels and a plurality of narrower channels that are connected to one another so as to form a channel arrangement, each of the plurality of wider channels is wider than each of the plurality of narrower channels, and the channel arrangement configured to accommodate the fluid, allowing the fluid to absorb heat generated by the at least one heat source through the heat conductive plate so as to at least partially change phase of the fluid;
• wherein each of the plurality of split structures is hexagonal in shape;
• wherein the fluid storage chamber has a thickness direction and transverse direction is perpendicular to the thickness direction, the plurality of split structures are arranged in an array in the transverse direction, the heat absorbing edge is on one side of the fluid storage chamber in the transverse direction, and the condensing edge is on an opposite side of the fluid storage chamber in the transverse direction, and wherein the heat absorbing edge in thermal contact with the heat source is present on only one side of the fluid storage chamber in the transverse direction.