Controller integrated type fuel pump module for preventing thermal deformation of flange

A controller integrated type fuel pump module in which a controller is integrally formed on a flange that fixes a fuel pump and a reservoir cup to a fuel tank, the controller integrated type fuel pump module comprising:

• wherein the flange further comprises an upper surface;
• a storage part including a storage member includes an upper surface opened and an inner space formed and a potting part guide protruding from an inner surface of the storage member, and formed on the upper surface of the flange;
• an electric part including a board having an edge disposed across the potting part guide to vertically divide the inner space of the storage part into an upper space and a lower space together with the potting part guide, and generating heat;
• a heat dissipation part disposed on the upper surface of the storage part and discharging heat generated from the electric part to an outside;
• and
• a potting part formed by potting a liquid resin to the upper space and transferring the heat generated from the electric part to the heat dissipation part,
• wherein the inner space of the storage part is isolated to the upper space and the lower space by the board and the potting part guide, thereby allowing the potting part to be performed on only the upper space and the lower space to be left as an empty space filled with only air so that the empty space forms an insulating layer and prevents heat transfer from the board which placed on an upper position to the flange which placed on a lower position.