Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1989-06-02
1990-06-26
Beha, Jr., William H.
Electrical generator or motor structure
Dynamoelectric
Rotary
174 66, 310 89, 439217, 439491, H02K 1100, H01R 2700
Patent
active
049374826
ABSTRACT:
An operating voltage change and motor rotation reversal device for a dynamoelectric machine in the form of an induction motor having simplified structure and operational features. For single phase operation, a pre-configured jumper plug interconnects a multi-receptacle connector socket mounted to a terminal board for the motor to complete one of four unique circuit combination. For three phase applications, a different and separate jumper plug is used to provide two different mating relationships with the connector socket so as to provide two unique circuit combinations. Preferably, the terminal board is physically mounted within the motor housing so that when the single phase or three phase plug is mated with the connector socket, a vertically extending handle of the plug is positioned adjacent to an overlying motor housing cover plate having prearranged openings in it. The cover plate has functional information imprints adjacent the openings. The plug handle-cover plate sequence gives a reversal indication of the motor connection without having to disassemble motor components to obtain the connection information.
REFERENCES:
patent: 2238696 (1941-04-01), Hanley
patent: 2922054 (1960-01-01), Miller
patent: 3231767 (1966-01-01), Powell
patent: 3602748 (1971-08-01), Cocke
patent: 4055724 (1977-10-01), Manecke et al.
patent: 4429243 (1984-01-01), Crow
patent: 4748355 (1988-05-01), Anderson et al.
patent: 4781610 (1988-11-01), Mercer
patent: 4851963 (1989-07-01), Miller et al.
Beha Jr. William H.
Emerson Electric Co.
Rebsch D. L.
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