| 主权项 |
1. A power converter comprising:
a semiconductor module; a cooler that cools the semiconductor module, the cooler having a pair of coolant pipes that charges/discharges a coolant;
a casing provided with a pair of openings, housing the semiconductor module and the cooler in an interior thereof while having the pair of coolant pipes projected out of the pair of openings; anda pair of grommets made of an elastic material, being fitted to the pair of openings where the pair of coolant pipes are inserted into the pair of grommets; whereinthe casing includes a casing body and a casing cover which are assembled to each other, forming the pair of openings therebetween;the casing body has a mating surface via which the casing body is assembled to the casing cover;a pair of recesses are formed in the mating surface, each being cut into the shape of a U;each of the grommets includes:
a grommet body having a through hole through which a corresponding coolant pipe is inserted and a sealing surface which is configured to intimately contact an inner peripheral surface of a corresponding opening; anda guide provided to one end of the grommet body, with respect to a direction of inserting the coolant pipe, so as to be projected outward further than the sealing surface, whereineach of the grommets is embedded with a reinforcement member made of a ferrous material, with at least a part of the reinforcement member being located in the guide;the reinforcement member is arranged, being extended over both of the guide and the grommet body and including a cylindrical body located in the grommet body, and a flange projected outward from one end of the cylindrical body, and a part of the flange is located in the guide;the flange has a sole flat portion formed so as to be perpendicular to the radial direction of the cylindrical body; andthe sole flat portion and the casing cover are faced to each other. |
