Electric motor device

Abstract

Abstract PURPOSE:To eliminate the waiting time at the time of restarting of the electric motor by connecting parallel by connected thermisters to electric motor's starting coil in series and providng a switchover device on each thermister. CONSTITUTION:A starting coil 2, which constitutes the electric motor with a main coil 1, is provided a main thermister 3A and an auxiliary thermister 4 connecting in parallel, and the thermisters 3A, 4 are connected to a contact 7, 8 respectively in series. Consequently it is possible to dispense with the waiting time at the time of restarting due to a temperature raise of the thermisters and assure the starting by alternately switching the contact points 7, 8 through the operation of a swtich 6 when the electric motor is started, and using the main thermister 3A for the first start and the auxiliary thermister 4 for the second start.

Inventors

• 👤 Fukuroku Hiratsuka

Bibliographic Details