Rectifier housing unit having adjacent parallel oppositely-biased cooling plates

Claim 2

Rectifier unit comprising, in combination, first and second sets of diodes; a first cooling plate supporting said first set of diodes and having an outer edge; a second cooling plate supporting said second set of diodes and having an inner edge, said first and second cooling plates being located in parallel planes; and an insulator means engaging said inner and outer edges for electrically insulating said cooling plates from each other while mechanically connecting said first and second cooling plates to each other in a centered position in which said inner and outer edges do not overlap.

Claim 3

Rectifier unit as claimed in claim 1 wherein said first and second cooling plates are annular and substantially concentric.

Claim 4

Rectifier unit as claimed in claim 2 wherein said inner and outer edges have matching outlines and dimensions, and are parallel in said centered position.

Claim 5

Rectifier unit as claimed in claim 3 wherein each of said first and second annular cooling plates has circumferentially alternating portions which are wide and narrow, respectively, in radial direction; and wherein said first and second diodes are mounted on said wide portions of said first and second annular cooling plates, respectively, and alternate in circumferential direction.

Claim 6

Rectifier unit as claimed in claim 4 wherein said wide portions of said first annular cooling plate include first portions outwardly projecting from said outer edge; wherein said wide portions of said second annular cooling plate include second portions inwardly projecting from said inner edge and alternating with said first portions; wherein said first and second cooling plates are conductive; wherein said first and second sets of diodes are mounted, respectively, in the regions of said first and second portions; and wherein the plus terminals of the diodes of one of said first and second sets, and the minus terminals of the diodes of the respective other set are in conductive contact with the respective cooling plate on which they are mounted.

Claim 7

Rectifier unit as claimed in claim 5 wherein each of said cooling plates has tubular seats in which said diodes are located and frictionally held in conductive contact.

Claim 8

Rectifier unit as claimed in claim 5 wherein said second annular cooling plate has along the outer periphery thereof projections bent transversely out of the plane of said second annular cooling plate to increase the rigidity and heat dissipation of the same.

Claim 9

Rectifier unit as claimed in claim 3 wherein said insulator means is at least partly located between said inner and outer edges abutting the same along the lengths thereof to fill the gap between the same.

Claim 10

Rectifier unit as claimed in claim 8 wherein said insulator means includes an annular part having a substantially S-shaped cross section with opposite recesses respectively receiving said inner and outer edges.

Claim 11

Rectifier unit as claimed in claim 9 wherein said insulator means has a part formed with openings therethrough; and comprising connectors in said openings having ends located on opposite sides of said insulator means and of said first and second cooling plates.

Claim 12

Rectifier unit as claimed in claim 3 wherein said diodes of said first and second sets alternate in circumferential direction of said first and second cooling plates and form pairs of adjacent diodes; wherein said insulator means has pot-shaped projections located between the diodes of each pair; wherein said pairs of diodes have connectors located in said pot-shaped projections at the open end of the same; and comprising soldering material in said pot-shaped projections. 12, Rectifier unit as claimed in claim 11 comprising other connectors inserted into the other ends of said projections; and wherein said other ends have narrow bores for the passage of said other connectors.

Claim 13

Rectifier unit as claimed in claim 11 comprising a conductor mounted on said insulator means; a set of exciting diodes mounted on said first cooling plate and having first terminals connected with said conductor, and second terminals respectively located in said open ends of said pot-shaped projections.

Claim 14

Rectifier unit as claimed in claim 3 wherein said first cooling plate has a central opening; wherein said insulator means includes a tubular portion located in said central opening and an annular portion located between said inner and outer edges.

Claim 15

Rectifier unit as claimed in claim 14 wherein said tubular portion is formed with a circumferential groove; comprising a conductor band located in said groove; and a set of exciting diodes having first terminals connected with said conductor band and second terminals connected with pairs of diodes of said first and second sets.

Claim 16

Rectifier unit as claimed in claim 15 wherein said insulator means includes pot-shaped projections connecting said tubular portion with said annular portion; wherein said pairs of diodes have pairs of connectors located in said pot-shaped projections, respectively; wherein said second terminals of said exciting diodes are located in said pot-shaped projections, respectively; and comprising soldering material filling said pot-shaped projections.

Claim 17

Rectifier unit as claimed in claim 14 wherein said tubular portion of said insulator means is formed with two radial guide ways; and two brushes in said guide ways adapted to engage slide rings located in said tubular portion.

Claim 18

Rectifier unit as claimed in claim 17 comprising a first connector secured to said insulator means, passing through an opening in said first cooling plate, and being connected with one of said brushes; and a second connector passing through said insulator means and connected to an other brush of said brushes.

Claim 19

Rectifier unit as claimed in claim 18 comprising two springs for biassing said brushes, one of said springs being mounted on an extension of said first connector; and wherein said insulator means has a supporting lug on which the other spring is mounted.

Claim 20

Rectifier unit as claimed in claim 14 wherein said insulator means consists of an injection molded synthetic material.