| 摘要 |
The device (H) has heating elements (1a, 2a, 3a) assigned to heating zones (Z1, Z2, Z3), and comprising a contact element (7) for power supply and another contact element (8) for power feedback. The heating elements are arranged in stack-like form in series and/or in gaps. The two contact elements are arranged to contact a common collecting power line i.e. collecting power rail (10), which extends as power supply units (4, 5, 6) or power feedback units in inner side of the device, and electrically connected with the power rail. |
