Heat sink assembly for button diode rectifiers

Claim 2

A HEAT SINK ASSEMBLE FOR A POWER SEMICONDUCTOR BUTTON DIODE WHICH IS EASILY ASSEMBLED WITHOUT REQUIRING ANY SOLDERED CONNECTION, SAID PACKAGE COMPRISING: A UNITARY BODY SERVING AS A HEAT SINK, SAID HEAT SINK HAVING A BASE MAMBER WITH A MAJOR FACE, AT LEAST TWO SPACED PARALLEL CONVECTOR FINS EXTENDING TRANSVERSELY FROM SAID BASE MEMBER FACE, SAID FINS HAVING A SUBSTANTIAL HEIGHT AND LENGTH SO AS TO PROVIDE A LARGE SURFACE AREA FOR SAID HEAR SINK, TWO ADJACENT FINS HAVING COMPLEMENTARY FACING INTEGRAL RIDGES EXTENDING PARALLEL TO SAID BASE MEMBER FACE AND DEFINING SHOULDERS SUBSTANTIALLY IN A COMMON PLANE, SAID BASE MEMBER HAVING CONFORMATIONS BETWEEN SAID TWO FINS ADAPTED TO SEAT AGAINST ONE ELCTRICAL CONTACT OF AT LEAST ONE BUTTON DIODE IN ELECTRICAL AND HEAT CONDUCTING RELATIONSHIP, A RECTANGULAR SPRING MAMBER HAVING A PLURALITY OF TEETH EXTENDING FROM OPPOSITE SIDES THEREOF AND ADAPTED WHEN FLEXED TO FIT AGAINST SAID ADJACENT FINS, SAID TEETH ENGAGING SAIL ADJACENT FINS DIRECTLY UNDERNEATH SAID SHOULDER PORTION THEREBY PREVENTING MOVEMENT OF SAID SPRING MEMBER LATERALLY ALONG SAID SHOULDERS, SAID SHOULDERS SEATING AGAINST SAID SPRING MEMBER TO HOLD THE SAME AGAINST MOVEMENT AWAY FROM SAID BASE MEMBER FACE, AN OPENING IN SAID SPRING MEMEBER IN REGISTER WITH SAID BASE MEMBER CONFORMATIONS, A TERMINAL IN SAID OPENING AND INSULATDD FROM SAID SPRING MEMBER FOR MAKING ELECTRICAL CONNECTION TO THE OTHER ELECTRICAL CONTACT ON SAID BUTTON DIODE, THE FLEXING OF SAID SPRING MEMBER BEING IN A DIRECTION TO PRESS SAID TERMINAL AGAINST SAID BUTTON DIODE OTHER ELECTRICAL CONTACT WHEREBY EXTERNAL ELECTRICAL CONNECTION IS MADE TO SAID BUTTON DIODE WITHOUT ANY SOLDERED CONNECTION, SO AS TO FACILITATE EASY ASSEMBLY AND REPLACEMENT OF SAID BUTTON DIODE.

Claim 3

An easily assembled and economical button diode-heat sink assembly for rectification applications requiring no soldered connections and permitting easy diode replacement, said assembly comprising: an extruded aluminum unitary body serving as a heat sink, a base portion on said heat sink with a major face having a transverse dimension, at least two spaced parallel convector fins extending transversely across and projecting generally perpendicularly from said base member face, said fins having a length generally equal to the transverse dimension of said face and a substantial height that provides facing major surfaces on said fins and a large surface area for said heat sink, complementary facing integral ridges on said facing fin surfaces, said ridges providing shoulders on said fins in a common plane generally parallel to said base member face, each of said ridges extending along substantially the entire length of said fins, two recesses in said base member face between said fins for receiving a pair of button diodes in electrical and heat conducting relationship with electrodes thereof, said recesses generally equally spaced from said fins and mutually spaced from each other generally parallel to said fins, a rectangular sheetlike spring member between said fins and extending transversely across most of said base member face, an arcuate set in said spring member between opposite edges thereof curving away from said base member face, sAid opposite parallel edges on said spring member engaging said fin shoulders and preventing said spring member from moving perpendicularly away from said base member face, a plurality of teeth extending outwardly several mils from said spring member opposite side, said teeth subtending an angle of about 60* and engaging said facing fin surfaces to prevent transverse movement of said spring member parallel to said base member face, two openings in said spring member complementary to said two base member recesses, an elongated terminal member in each of said openings and electrically insulated from said spring member, a conformation on one end of each terminal member for retaining it in said opening when contacting a button diode, the other end of each terminal member having a conformation for receiving a terminal connector, a pair of button diodes between said spring member and said base member, one electrode of one button diode seated in each of said recesses and making an electrical connection with said base member, an opposite contact of each of said button diodes registered with its respective terminal member, and the permanent arcuate set in said spring member urging each of said terminal members against its respective button diode opposite contact, whereby diode seating in said recesses and electrical connections to said button diode electrodes is maintained without soldered connections, and diodes can be easily replaced.

Claim 4

An easily assembled and economical button diode-heat sink assembly for rectification applications requiring no soldered connections and permitting easy diode replacement, said assembly comprising: an extruded aluminum unitary body serving as a heat sink, a base portion on said heat sink with a major face having a transverse dimension, at least two spaced parallel convector fins extending transversely across and projecting generally perpendicularly from said base member face, said fins having a length generally equal to the transverse dimension of said face and a substantial height that provides facing major surfaces on said fins and a large surface area for said heat sink, complementary facing integral ridges on said facing fin surfaces, said ridges providing shoulders on said fins in a common plane generally parallel to said base member face, each of said ridges extending along substantially the entire length of said fins, two recesses in said base member face between said fins for receiving a pair of button diodes in electrical and heat conducting relationship with electrodes thereof, said recesses generally equally spaced from said fins and mutually spaced from each other generally parallel to said fins, a rectangular sheetlike spring member between said fins and extending transversely across most of said base member face, an arcuate set in said spring member between opposite edges thereof curving away from said base member face, sAid opposite parallel edges on said spring member engaging said fin shoulders and preventing said spring member from moving perpendicularly away from said base member face, a plurality of teeth extending outwardly several mils from said spring member opposite side, said teeth subtending an angle of about 60* and engaging said facing fin surfaces to prevent transverse movement of said spring member parallel to said base member face, two openings in said spring member complementary to said two base member recesses, an elongated terminal member in each of said openings and electrically insulated from said spring member, a conformation on one end of each terminal member for retaining it in said opening when contacting a button diode, the other end of each terminal member having a conformation for receiving a terminal connector, a pair of button diodes between said spring member and said base member, one electrode of one button diode seated in each of said recesses and making an electrical connection with said base member, an opposite contact of each of said button diodes registered with its respective terminal member, and the permanent arcuate set in said spring member urging each of said terminal members against its respective button diode opposite contact, whereby diode seating in said recesses and electrical connections to said button diode electrodes is maintained without soldered connections, and diodes can be easily replaced.