| 摘要 |
PROBLEM TO BE SOLVED: To provide a heating medium heating system capable of securing required strength, and excellent in vibration resistance, even if a housing is manufactured by resin.SOLUTION: A heating medium heating system includes a PTC heater 18 and a housing 11 for storing a heat exchanger element. The housing 11 is constituted of a lower part housing 11b on the side fixed to an external part, and an upper part housing 11a screw-fastened to the lower part housing 11b. The lower part housing 11b and the upper part housing 11a are respectively formed with screw-fastening collars 113 and 117 in a plurality of screw-fastening places, and the upper part housing 11a is formed with 114c and 114c for connecting the opposed screw-fastening collars 117 and making a pair of two. |
