| 摘要 |
<p>The brush carrier (2) includes: an insulating support (4); metallic base (14) fixed to support and; electrical circuit including semiconductor control component (12), in which base has fixed to one of its faces component via opening (22) in support and also forms part (14, 26) of heat dissipater in contact with ambient temperature and arranged to receive heat from control component. The heat dissipater consists of two distinct and adjacent parts, metallic base and dissipater (26). The base and support have different expansion coefficient and heat dissipater has expansion coefficient greater than that of base.</p> |
