Electric motor

Details Electric motor Electric motor

1996-03-22

1998-02-03

LaBalle, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 64, 310 68R, H02K 518, H02K 520, H02K 1100

Patent

active

057148163

ABSTRACT:
The invention relates to a frequency converter supplied electric motor comprising a cooling air blower, the cooling air of which for cooling the motor is guided along cooling ribs which are arranged on the motor housing. The frequency converter is arranged in a housing which is detachably connected to the motor housing and which comprises a first heat conducting housing part and at least a further housing part. The first housing part of the frequency converter housing forms the fan cowl and comprises a transverse wall which is provided and formed for the heat conducting connection to the heat producing components of the power circuit of the frequency converter. The first housing part is formed ribbed and openings in the hosing wall are provided in the footwell of the cooling ribs as air inlet openings for the cooling air stream. Moreover there is provided a further housing part which connects to the first housing part and has a purely accomodating function.

REFERENCES:
patent: 3748509 (1973-07-01), Karcher
patent: 3809935 (1974-05-01), Kristen et al.
patent: 4668898 (1987-05-01), Harms et al.
patent: 4712030 (1987-12-01), Lakin et al.
patent: 4831294 (1989-05-01), Jussila
patent: 4840222 (1989-06-01), Lakin et al.
patent: 4963778 (1990-10-01), Jensen et al.
patent: 4988905 (1991-01-01), Tolmie, Jr.
patent: 5006744 (1991-04-01), Archer et al.
patent: 5038088 (1991-08-01), Arends et al.
patent: 5430931 (1995-07-01), Fisher et al.

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