Single-phase asynchronous motor with automatic protection function

• Main Authors: CAO SHENG, LI YUEE, SHANG TIANDE, JIA JUNGANG
• Format: Patent
• Language: Chinese; English
• Published: 21.09.2011
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

The utility model discloses a single-phase asynchronous motor with an automatic protection function, which is characterized in that a winding coil connecting wire is connected with a winding coil, a thermal protector is mounted on the winding coil, the winding coil connecting wire and one end of a thermal protector connecting wire are connected with the thermal protector, and the other end of the thermal protector connecting wire is connected with a relay. The single-phase asynchronous motor provided by the utility model can be automatically protected by adopting the following technical scheme: when a motor works in severe environment such as overload running for a long time, rotor blocking, over-low or over-high voltage, over-small tangent plane of an electric power cord, high temperature and non-ventilation, the thermal protector commands the relay to cut off a power supply after automatically breaking off and sending out sensitive signals to cut off the power supply, so as to prevent a motor coil to be bur