| 摘要 |
FIELD: electrical engineering; overheat and burn-out protection of sealed compressors and their electric drives. ^ SUBSTANCE: proposed thermal switch 1 has case 2 incorporating sealed metal container 4 and contact mechanism installed within the latter, holder 3 incorporating base 3A with locating surface 3L for electric motor 10 on its winding lead 11, retaining section 3B disposed on base surface opposing locating surface and holding switch case 2 whose base is large enough to prevent its projection beyond this base. Retaining section has wall perpendicular to base with through hole to pass current-carrying lead connecting current-carrying conductor that retains switch case on holder; locating surface abuts against upper side of winding lead for connecting thermal switch to the latter by means of fastening thread; current-carrying conductor is connected to mentioned lead so that holder is retained between sealed container and current-carrying conductor. ^ EFFECT: preventing transfer of conductive and radiant heat from winding lead to thermal switch case when the latter is connected to winding lead. ^ 6 cl, 8 dwg |
