Double-insulated air-cooled electromotor for barrel pump

Details Double-insulated air-cooled electromotor for barrel pump Double-insulated air-cooled electromotor for barrel pump

1989-01-05

1990-06-05

Wong, Peter S.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 88, 310 89, 165 47, 165 803, H02K 906

Patent

active

049316788

ABSTRACT:
An electromotor, in particular a drive motor for a barrel or container pump, having an outwardly encapsuled motor housing made of a material having good heat conducting characteristics, such as aluminium. The motor housing is provided on its outer side with a shield of an electrically non-conducting material. The shield is surrounded on its outer side with a mantle which forms, with the housing middle portion, a through-stream gap for the passage of cooling air. This outer mantle includes a pair of housing caps, which overlap the end-support shields of the motor housing, and between which housing caps there extends the mantle which shields the outer surface of the housing middle portion by forming the through-stream gap for the passage of cooling air. The outer shielding of the entire motor housing prevents contact with metallic parts and thereby current conducting parts of the motor by a person servicing the device.

REFERENCES:
patent: 2967959 (1961-01-01), Waters
patent: 3502915 (1970-03-01), Moret et al.
patent: 3643119 (1972-02-01), Lukens
patent: 3748507 (1973-07-01), Sieber
patent: 3935909 (1976-02-01), Mabuchi et al.
patent: 4465948 (1984-08-01), Oyama et al.
patent: 4523632 (1985-06-01), Nobukawa et al.
patent: 4742257 (1988-05-01), Carpenter
patent: 4811820 (1989-03-01), Rossi

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