Heat dissipation module

A heat dissipation module, comprising:

• an evaporator, having an internal space divided into a first space and a second space different from each other;
• a pipe assembly, assembled to the evaporator to form a loop, the loop filled with a working fluid, wherein the working fluid in liquid state receives heat in the second space and flows to the pipe assembly after being transformed into vapor state, and the working fluid in vapor state flows into the first space after being transformed into liquid state by dissipating heat in the pipe assembly, and is stored in the first space to be supplied to the second space,
• wherein the evaporator has an inlet and an outlet, and there is a height difference between the first space and the second space, the second space being higher than the first space, and the outlet being higher than the inlet;
• and
• a heat pipe, wherein one end of the heat pipe receives heat, another end of the heat pipe is connected to an external part of the evaporator and faces the second space, and the another end of the heat pipe contacts a recessed structure of the external part,
• wherein the external part of the evaporator and an internal part of the evaporator are consistently in a step structure to form the recessed structure wherein the evaporator has a capillary medium connecting the first space and the second space, and the working fluid in liquid state is suitable to be transferred from the second space to the first space by the capillary medium.