WATER-PROOF CONTROL UNIT AND MANUFACTURING METHOD FOR WATER-PROOF CONTROL UNIT

A waterproof type control unit is provided in which a case member has: a base plate on which a case member bottom surface is formed; and a peripheral wall which is fixed to the base plate. The peripheral wall includes a first peripheral wall edge portion and a second peripheral wall edge portion, which are disposed on the case member bottom surface so as to be distant from each other, the peripheral wall surrounding a controller from the first peripheral wall edge portion to the second peripheral wall edge portion. The connector member includes a connector member main unit which is disposed in a space between the first and second peripheral wall edge portions. A peripheral wall groove, which is open toward the connector member main unit, is disposed in each of the first and second peripheral wall edge portions. A bottom surface of the peripheral wall groove is inclined with respect to the case member bottom surface. A base plate groove, which connects each peripheral wall groove, is disposed on the bottom surface of the case member. A seal material is filled into the space formed between each of an inner surface of the peripheral wall groove and an inner surface of the base plate groove, and the connector member.