US3573707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mounting of components on metallic printed circuit boards
Assignee: TE Connectivity Corp
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Filing: 1969-09-05
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Granted: 1971-04-06
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Expires: 1989-09-05
Abstract
Abstract Component mounting system for metallic printed circuit boards having insulating coatings on their surfaces is disclosed in which the drilled hole in the metallic board is lined with a thin walled liner of plastic tubing. A metallic receptacle is positioned in the liner so that the liner electrically insulates the receptacle from the metallic portion of the printed circuit board. The lead wire from the component is inserted into the receptacle and the board is solder-dipped to electrically connect the lead wire to a connecting path on the board. The heat from the soldering operation causes the liner to radially expand so that it achieves a tight fit in the hole. The board acts as a heat sink for the components mounted thereon but the board is electrically isolated from the components excepting where it is used as a grounding plane.
Inventors
- 👤 Charles Edward Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:52
CPC Classifications
H; H01; H01R; H01R12/00; H01R12/50; H01R12/51; H01R12/55; H01R12/58; H05; H05K; H05K13/00; H05K13/04; H05K13/0478; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447; H05K3/40; H05K3/4038; H05K3/4046; H05K1/00; H05K1/02; H05K1/03; H05K1/05; H05K1/056; H05K2201/00; H05K2201/10; H05K2201/10227; H05K2201/10401; H05K2201/10613; H05K2201/10742; H05K2201/10886; H05K2201/10916; H05K3/44; H05K3/445
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
192 words
The method of forming an electrical connection between a first conductor extending from a component and a second conductor on a metallic printed circuit board, said board comprising a relatively thin metallic panel having a coating of insulating material on at least one of its surfaces, said board having a hole therein for reception of said first conductor, said method comprising the steps of: inserting an expandable polymeric sleeve into said hole, the length of said sleeve being at least equal to the thickness of said panel and being no greater than the thickness of said boArd; inserting a metallic receptacle into said sleeve, said receptacle having a length greater than the thickness of said boards; securing said receptacle to said board by deformation of end portions of said receptacle so that said end portions engage said coating of said board; inserting said first conductor into said receptacle; and filling said hole with solder whereby, said first conductor is electrically connected to said second conductor on said board and said panel forms a heat sink for said component by conductive transfer of heat from said component through said sleeve to said panel.
Claim 2
Independent Claim
192 words
The method of forming an electrical connection between a first conductor extending from a component and a second conductor on a metallic printed circuit board, said board comprising a relatively thin metallic panel having a coating of insulating material on at least one of its surfaces, said board having a hole therein for reception of said first conductor, said method comprising the steps of: inserting an expandable polymeric sleeve into said hole, the length of said sleeve being at least equal to the thickness of said panel and being no greater than the thickness of said boArd; inserting a metallic receptacle into said sleeve, said receptacle having a length greater than the thickness of said boards; securing said receptacle to said board by deformation of end portions of said receptacle so that said end portions engage said coating of said board; inserting said first conductor into said receptacle; and filling said hole with solder whereby, said first conductor is electrically connected to said second conductor on said board and said panel forms a heat sink for said component by conductive transfer of heat from said component through said sleeve to said panel.
Claim 3
Dependent Claim
41 words
A method as set forth in claim 1 wherein said board has a multiplicity of holes, said method including the step of inserting sleeves into said holes by providing an excess of said sleeves on said board and vibrating said board.
Claim 4
Dependent Claim
30 words
A method as set forth in claim 1 wherein said board has a multiplicity of holes, said method including the step of inserting said sleeves into said holes by vibration.
Claim 5
Dependent Claim
33 words
A method as set forth in claim 1 wherein said board has a multiplicity of holes, said method including the steps of inserting said sleeves and said receptacles into said holes by vibration.
Claim 6
Dependent Claim
29 words
A method as set forth in claim 3 wherein said sleeves are heated subsequent to insertion into said board holes and prior to filling of said holes with solder.
Claim 7
Dependent Claim
18 words
A method as set forth in claim 1 wherein said sleeve is radially expanded by heating during soldering.
Claim 8
Independent Claim
106 words
A device for mounting a component on a metallic printed circuit board comprising: a metallic receptacle adapted to receive a conductor extending from said component; a polymeric sleeve in surrounding relationship to said receptacle, said sleeve being in a dimensionally unstable condition and being radially expandable, said sleeve having an outside diameter which is less than the diameter of a hole in said printed circuit board and having expanded dimensions which provide a tight fit in said hole whereby; upon insertion of said device into said hole and upon expansion of said sleeve, said receptacle is retained in said hole and is insulated from said boards.
Claim 9
Independent Claim
106 words
A device for mounting a component on a metallic printed circuit board comprising: a metallic receptacle adapted to receive a conductor extending from said component; a polymeric sleeve in surrounding relationship to said receptacle, said sleeve being in a dimensionally unstable condition and being radially expandable, said sleeve having an outside diameter which is less than the diameter of a hole in said printed circuit board and having expanded dimensions which provide a tight fit in said hole whereby; upon insertion of said device into said hole and upon expansion of said sleeve, said receptacle is retained in said hole and is insulated from said boards.
Claim 10
Dependent Claim
25 words
A device as set forth in claim 7 wherein said sleeve is in a heat unstable condition and is radially expandable upon application of heat.
Claim 11
Dependent Claim
26 words
A device as set forth in claim 7 wherein said receptacle has a restricted intermediate portion for frictional engagement with said conductor extending from said component.
Claim 12
Independent Claim
167 words
A device for mounting a component on a metallic printed circuit board, said board comprising a metallic panel having its surface portions coated with an insulting layer, said device comprising: a generally tubular metallic receptacle adapted to receive a conductor extending from said component, said receptacle having a length which is greater than the thickness of said printed circuit board; a polymeric sleeve in surrounding relationship to said receptacle, said sleeve having a length which is substantially equal to and no greater than, the thickness of said board, said sleeve having an initial diameter which is less than the diameter of a hole in said board, said sleeve being in a heat unstable condition and being radially expandable upon application of heat to a diameter which is at least equal to the diameter of said hole whereby; and upon insertion of said device into said hole and expansion of said sleeve, said sleeve electrically insulates said receptacle and a component wire received therein from said metallic panel.
Claim 13
Independent Claim
167 words
A device for mounting a component on a metallic printed circuit board, said board comprising a metallic panel having its surface portions coated with an insulting layer, said device comprising: a generally tubular metallic receptacle adapted to receive a conductor extending from said component, said receptacle having a length which is greater than the thickness of said printed circuit board; a polymeric sleeve in surrounding relationship to said receptacle, said sleeve having a length which is substantially equal to and no greater than, the thickness of said board, said sleeve having an initial diameter which is less than the diameter of a hole in said board, said sleeve being in a heat unstable condition and being radially expandable upon application of heat to a diameter which is at least equal to the diameter of said hole whereby; and upon insertion of said device into said hole and expansion of said sleeve, said sleeve electrically insulates said receptacle and a component wire received therein from said metallic panel.
Claim 14
Dependent Claim
190 words
An electrical connection between a metallic printed circuit board and a component mounted on said board, said printed circuit board comprising a relatively thin metallic panel having an insulating coating on its surfaces and having a board conductor on the coating of at least one surface, said connection comprising: a hole extending through said board and through said board conductor; a polymeric sleeve in said hole, said sleeve having a tight fit within said hole and being in intimate engagement with exposed edge portions of said panel; a metallic receptacle in said sleeve, said receptacle extending beyond said one surface of said board; a conductor extending from said component and into said receptacle; and solder in said hole extending to said board conductor, said solder filling substantially all of the space between said sleeve and said receptacle whereby, said solder functions as an electrical connection between said component conductor and said board conductor and functions as a heat transmission means for conducting heat from said component conductor to said sleeve, said sleeve functioning to transmit heat to said panel and said panel functioning as a heat sink for said component.
Claim 15
Dependent Claim
190 words
An electrical connection between a metallic printed circuit board and a component mounted on said board, said printed circuit board comprising a relatively thin metallic panel having an insulating coating on its surfaces and having a board conductor on the coating of at least one surface, said connection comprising: a hole extending through said board and through said board conductor; a polymeric sleeve in said hole, said sleeve having a tight fit within said hole and being in intimate engagement with exposed edge portions of said panel; a metallic receptacle in said sleeve, said receptacle extending beyond said one surface of said board; a conductor extending from said component and into said receptacle; and solder in said hole extending to said board conductor, said solder filling substantially all of the space between said sleeve and said receptacle whereby, said solder functions as an electrical connection between said component conductor and said board conductor and functions as a heat transmission means for conducting heat from said component conductor to said sleeve, said sleeve functioning to transmit heat to said panel and said panel functioning as a heat sink for said component.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |