| 摘要 |
The invention relates to a device comprising at least a first electrically conductive contact plate (11) and at least a second electrically conductive contact plate (12) and a plurality of first heating elements (1 to 9) connected electrically in parallel with at least one resistance heating element (1.3 to 9.3) respectively, wherein each of the heating elements (1 to 9) is connected by means of a first connecting contact (1.1 to 9.1) to the first contact plate (11) and by means of a second connecting contact (1.2 to 9.2) to the second contact plate (12), wherein both contact plates (11, 12) lie in a common first plane (E1), wherein the resistance heating elements (1.3 to 9.3) are arranged along a spiral or arched line around a centre of the device. To expand the service life of the device at reduced manufacturing costs, it is proposed that a plurality of heating elements (1.3 to 9.3) are arranged consecutively or nested with each other along the ached or spiral line, and that both the first and second contact plates (11, 12) lying in a common first plane (E1) comprise interlocking comb-like contact extensions (11', 12'). |
