| 摘要 |
<p>Provided is a heating unit which can be easily repaired and maintained. In the heating unit (101), planar heat generating bodies (131a, 131b) are arranged between an inner shell (111) and outer shells (121a, 121b), and the outer shells (121a, 121b) are removably bonded to the inner shell (111) by a screw (151). On the circumferences of the planar heat generating bodies (131a, 131b), O-rings (141a, 141b) are arranged, and the planar heat generating bodies (131a, 131b) are prevented from being exposed to an external gas.</p> |
