| 摘要 |
The invention relates to a boiler (1) including a plastic-made main body (2), a heating plate (16) and a lower-part shell body (12). An internal control device (44) is accommodated inside the lower-part shell body. The lower-part shell body (12) comprises a circumferentially upward-stretched inner wall (13). The plastic-made main body (2) comprises a lower part (4b). THe heating plate (16) includes a lower part surface (19a,20a,33) and a circumferential edge (18). An external sealing pat (36) is disposed between the circumferential edge (18) and the lower part (4b). According to the invention, an internal sealing pat (24) is disposed between the inner wall (13) and the lower part surface (19a,20a,33) for preventing any penetration of water into the shell body, especially penetration of leakage water from the external sealing pat (36) due to sealing defect. |
