EP0206620A2
Expired / Lapsed
EP
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Self-heating, self-soldering bus bar
Assignee: Metcal Inc
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Filing: 1986-06-09
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Granted: —
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Expires: 2006-06-09
Abstract
Abstract A self-heating and self-soldering bus bar for use in many applications. The pins of the bus bar are quickly and directly heated to a predetermined autoregulated temperature without significantly raising the temperature of the body of the bus. Thusly a bus bar may be mounted while maintaining thermal balance and mechanical integrity of all wotk pieces. The present invention avoids the problems normally associated with excess thermal expansion experienced when a bus bar is heated incidental to the heating of its contact points. A majority of this incidental heating is eliminated by direct quick heating of the mounting pins.
Inventors
- 👤 John F. Krumme
- 👤 Mark J. Cowell
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 05:39
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/02; H01; H01R; H01R43/00; H01R43/02; H01R43/0242; H05; H05K; H05K1/00; H05K1/02; H05K1/0201; H05K1/0212; H05K1/0213; H05K1/0237; H05K1/0242; H05K2201/00; H05K2201/08; H05K2201/083; H05K2201/10; H05K2201/10227; H05K2201/10272; H05K2201/10325; H05K2201/10613; H05K2201/10621; H05K2201/10689; H05K2203/00; H05K2203/10; H05K2203/104; H05K2203/11; H05K2203/1115; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3494
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
32 words
A self-heating, self-soldering bus bar comprising: An elongated frame, a multiplicity of heating elements oriented transversely to the elongated axis of said frame, a high frequency alternating current energizing said heating elements.
Claim 2
Dependent Claim
32 words
A self-heating, self-soldering bus bar comprising: An elongated frame, a multiplicity of heating elements oriented transversely to the elongated axis of said frame, a high frequency alternating current energizing said heating elements.
Claim 3
Dependent Claim
40 words
The self-soldering bus bar of Claim 1, wherein: each of said heating elements is comprised of a ferromagnetic core with a coil of insulated current carrier wound about said core; wherein said alternating current travels through said insulated current carrier.
Claim 4
Dependent Claim
29 words
The bus bar of Claim 2, wherein: said core of said elements is comprised of a first ferromagnetic layer and a second layer of high electrical and thermal conductivity.
Claim 5
Dependent Claim
14 words
The bus bar of Claim 2, wherein: said coils are electrically connected in series.
Claim 6
Dependent Claim
14 words
The bus bar of Claim 3, wherein: said coils are electrically connected in series.
Claim 7
Dependent Claim
18 words
The bus bar of Claim 1, wherein: said elongated frame is comprised of a highly electrically conductive material.
Claim 8
Dependent Claim
18 words
The bus bar of Claim 2, wherein: said elongated frame is comprised of a highly electrically conductive material.
Claim 9
Dependent Claim
18 words
The bus bar of Claim 3, wherein: said elongated frame is comprised of a highly electrically conductive material.
Claim 10
Dependent Claim
16 words
The bus bar of Claim 1, wherein: said heating elements are electrically isolated from each other,
Claim 11
Dependent Claim
16 words
The bus bar of Claim 2, wherein: said heating elements are electrically isolated from each other.
Claim 12
Dependent Claim
16 words
The bus bar of Claim 3, wherein: said heating elements are electrically isolated from each other.
Claim 13
Dependent Claim
103 words
A self-heating, self-soldering bus bar comprising: An elongated electrically conductive frame, a multiplicity of parallel pins extending from said frame perpendicular to the elongated axis of said frame having a base portion adjacent to said frame and an end portion most distant from said frame, an insulated current carrier forming a coil about said base of each of said pins, a high frequency alternating current traveling through said coils, wherein said pins are comprised of a ferromagnetic material, said alternating current in said coils induces a current in said pins, and wherein said induced current causes a rise in temperature of said pins.
Claim 14
Dependent Claim
103 words
A self-heating, self-soldering bus bar comprising: An elongated electrically conductive frame, a multiplicity of parallel pins extending from said frame perpendicular to the elongated axis of said frame having a base portion adjacent to said frame and an end portion most distant from said frame, an insulated current carrier forming a coil about said base of each of said pins, a high frequency alternating current traveling through said coils, wherein said pins are comprised of a ferromagnetic material, said alternating current in said coils induces a current in said pins, and wherein said induced current causes a rise in temperature of said pins.
Claim 15
Dependent Claim
26 words
The bus bar of Claim 12, wherein: said pins are comprised of a first ferromagnetic layer and a second layer of high electrical and thermal conductivity.
Claim 16
Dependent Claim
14 words
The bus bar of Claim 12, wherein: said coils are electrically connected in series.
Claim 17
Dependent Claim
14 words
The bus bar of Claim 13 wherein: said coils are electrically connected in series.
Claim 18
Dependent Claim
44 words
The bus bar of Claim 12, wherein: said pins are shaped for mating engagement with suitably sized orifices, solder is disposed between said orifices and said pins, and said pins are soldered into said orifices when said coils are energized by said alternating current.
Claim 19
Dependent Claim
18 words
The bus bar of Claim 9, wherein: said heating elements are hollow with at least one open end.
Claim 20
Independent Claim
140 words
A method for mounting a bus bar comprising the following steps: forming the pins of said bus out of a ferromagnetic material, surrounding a portion of each of said pins with a coil of an insulated current carrier, electrically connecting said coils in series, disposing solder between said pins and the mounting holes of each of said pins, applying pressure to urge said pins into engagement with said mounting holes, energizing said coils with a high frequency alternating electric current, allowing said pins to reach solder melt temperature along substantially the entire length of said pin, allowing said solder to melt and flow about said pin and around said mounting hole, terminating the flow of said current to said coils before the temperature of the main portion of said bus changes substantially, and allowing said solder to cool and solidify.
Claim 21
Independent Claim
140 words
A method for mounting a bus bar comprising the following steps: forming the pins of said bus out of a ferromagnetic material, surrounding a portion of each of said pins with a coil of an insulated current carrier, electrically connecting said coils in series, disposing solder between said pins and the mounting holes of each of said pins, applying pressure to urge said pins into engagement with said mounting holes, energizing said coils with a high frequency alternating electric current, allowing said pins to reach solder melt temperature along substantially the entire length of said pin, allowing said solder to melt and flow about said pin and around said mounting hole, terminating the flow of said current to said coils before the temperature of the main portion of said bus changes substantially, and allowing said solder to cool and solidify.
Claim 22
Dependent Claim
38 words
A solder preform carrier to be used with the bus of Claim 1, comprising: a body, and a multiplicity of properly spaced predetermined quantities of solder held in fixed special relationship by said body of said preform carrier.
Claim 23
Dependent Claim
23 words
The solder preform carrier of Claim 19, wherein: said body is flexible without change in the fixed spacing of said quantities of solder.
References Cited (Backward Citations)
No citation records indexed.
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