Compression driver motor structure

Details Compression driver motor structure Compression driver motor structure

1996-03-28

1998-06-02

Laballe, Clayton E.

Electrical generator or motor structure

Dynamoelectric

Linear

310 15, H02K 4100, H02K 3316

Patent

active

057605017

ABSTRACT:
A structure for a compression driver motor assembly which utilizes a pot with an integral top plate and a pole cap, thereby reducing magnetic losses and permitting manufacture of a driver structure with fewer parts and reduced weight. A more efficient process for manufacture of the motor assembly is also disclosed. The pot is manufactured with an integral top plate which is adapted for use with a large pole cap. The pole cap is affixed to the top of a permanent magnet and forms the magnetic gap with the top of the pot. The magnetic circuit of the driver thus includes a permanent magnet, a pot, a magnetic gap and the pole cap. The motor assembly is assembled in a process requiring fewer steps and less elaborate tooling than the motor assembly of the prior art.

REFERENCES:
patent: 3873784 (1975-03-01), Doschek
patent: 3886419 (1975-05-01), Omura et al.
patent: 3984706 (1976-10-01), Inouye
patent: 4336425 (1982-06-01), Renkus
patent: 4425534 (1984-01-01), Perahia
patent: 4454927 (1984-06-01), Seebinger
patent: 4494022 (1985-01-01), Kawara et al.
patent: 4531608 (1985-07-01), Heinz
patent: 4568845 (1986-02-01), Uehara
patent: 5157731 (1992-10-01), Mitobe

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