| 摘要 |
PURPOSE:To prevent a crack occurrence of sealing resin, avoid an exfoliation between a case and the sealing resin and improve an electric, a machanical characteristic or a resisting environmental qualities by permitting a layer of a rubber-like elastic body to interpose between the case and sealing resin. CONSTITUTION:After the inner face of a metallic case 2 has been made roughly by utilizing a cloth rasp to establish a removal of fat, the both faces of a chloroplane sheet of rubber-like elastic body 4 is finished roughly by the cloth rasp to achieve a removal of fat and is attached to the inner face of the case 2 by utilizing the resin same as sealing resin 3. Subsequently, after electric equipment body 1 is arranged in the case 2, the sealing resin 3 is implanted and hardened. According to such a constitution, the volumn constraction occurred when the sealing resin is hardened is absorbed by the layer of the elastic body, an occurrence of a cracks in the elastic body or exfoliation can be prevented, thereby an electric and mechanical characteristic and a resisting environment qualities can be improved. |
