Host apparatus with waterproof function and heat dissipation module thereof

A host apparatus with waterproof function comprising:

• a host shell body, having a slot, wherein said slot has an opening defining on a side of the host shell body;
• a host board, installed in the host shell body, having at least one element generating heat when operating;
• a first contact sink, having a first fixing portion and a first contact portion, wherein said first fixing portion tightly abuts the element generating high heat;
• and
• a heat dissipation module, removably inserted into the slot, comprising:
• a shell body, having a heat conductive side and an air outlet-inlet side, wherein said air outlet-inlet side has an air inlet and an air outlet, and said air outlet-inlet is disposed on the opening, and said heat conductive side being disposed on a position of the first contact sink;
• a second contact sink, installed on the heat conductive side, having a second fixing portion and a second contact portion, wherein said second fixing portion is fixed on the shell body, and said second contact portion contacts the first contact portion;
• a heat conductive tube, disposed in the shell body, wherein one end of said heat conductive tube is fixed on the second fixing portion of the contact sink, and the other end of the heat conductive tube is disposed on the air outlet;
• a heat dissipation fin, disposed on at least one of the air inlet and the air outlet, connecting to one end of the heat conductive tube;
• and
• a waterproof fan, installed on the air outlet, configured for exhausting air, which passes through the heat dissipation out of the shell body via the air outlet.