| 摘要 |
A base 1 for use eg with a kettle, is provided comprising a base plate 2 having a channel 3 therein and an electrical heating element 4 located and held in the channel such that the heating element and the base plate form one integral unit. The heating element 4 may be a and an electrical insulating, thermally conducting material 12 may be provided around the heating element in the channel, to hold it in a substantially central position in the channel, a closure member 13 is punch pressed into placed and secured in the channel by welding. The resistance wire connected to cold tails 6 having insulation 11 and sealed with silicon 15. The base includes with one or more electrical cut-off devices 30 which may be thermally linked via a strap 31 to the element. The element is inserted by a hook 20' and roller 21 arrangement followed by insulating dispensing means (22 fig 6), the insertion of closure 13 compressing the insulation. |
