| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrical heating device for an automobile capable of preventing the structure-borne noise or the sound wave generated by the air flowing therein or both from reaching a person in the automobile. <P>SOLUTION: The electrical heating device has a layer structure held by a retaining device. The layer structure has several heat generating elements and heat dissipating elements 4 between the heat generating elements, and a control device 16 for controlling the heat generating elements. The heating device has a sound deadening housing 14, which circumferentially encloses the control device 16 and by which sound waves produced by the control device 16 are deadened. This measure is capable of preventing the noise generated from a structure or the sound wave generated by the air flowing through the electrical heating device or both from reaching a person in the automobile. <P>COPYRIGHT: (C)2008,JPO&INPIT |
