| 摘要 |
<p>An electric heater for coffee maker comprises a casting base, heating pipes and water pipes, wherein the heating pipes and the water pipes are embedded and cast in the casting base. Accordingly, the structure of the electric heater is very simple. There is no space between the surfaces of the heating pipes and the casting base, and there is also no space between the surfaces of the water pipes and the casting base, whereby heat conductivity is improved.</p> |
