| 摘要 |
PURPOSE:To improve anchor force and waterproof property by separately potting a silicone resin for waterproof and an epoxy resin for an anchor. CONSTITUTION:Two potting cells 5 and 7 are provided at the inside and the outside of a wiring-rod penetrating part 4 of a cabinet 1. In the inside of the inner potting cell 5, a silicon resin 6 for waterproof is potted and hardened, and the inside and the outside of the cabinet are sealed. The viscosity of the silicone resin 6 before hardening is less than 100,000cPs. The resin becomes a rubber elastic body after hardening. In the inside of the outer potting cell 7, an epoxy resin 8 for an anchor is potted and hardened, and wire rods 3 are anchored. The viscosity of the epoxy resin 8 is less than 100,000cPs, and tensile strength after the hardening becomes 280-910kg/cm<2>. In this constitution, the epoxy resin absorbs external force, moisture which has passed through the epoxy resin can be shielded with the silicon resin 6, the anchor force for the wire rods and the waterproof property are improved and the structure can be simplified. |
