| 摘要 |
FIELD: automatics, namely devices for automatic periodic connection of actuators of AC apparatuses such as refrigerators. ^ SUBSTANCE: timer includes time counter 1; three-contact electromagnetic relay 2; threshold unit 3; power supply rectifiers 4,5; switching contacts of relay 8; hater 9; thawing ending sensor 10, compressor 11, poles 12, 13 of power source. Use of two half-wave rectifiers allows to arrange circuit elements closer one relative to other while satisfying safety demands. ^ EFFECT: improved design, enhanced operational reliability. ^ 1 dwg |
