US3736543A - Photoetched induction coil assembly - Google Patents

Photoetched induction coil assembly Download PDF

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Publication number
US3736543A
US3736543A US00240081A US3736543DA US3736543A US 3736543 A US3736543 A US 3736543A US 00240081 A US00240081 A US 00240081A US 3736543D A US3736543D A US 3736543DA US 3736543 A US3736543 A US 3736543A
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US
United States
Prior art keywords
substrate
coil
coil assembly
pair
coils
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00240081A
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English (en)
Inventor
E Lademann
Connor J O
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bendix Corp
Original Assignee
Bendix Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of US3736543A publication Critical patent/US3736543A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/003—Printed circuit coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/041—Printed circuit coils
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
    • H05K1/165—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor incorporating printed inductors

Definitions

  • SHEET 2 (IF 2 etched on the metallic laminations.
  • the present invention contemplates an induction coil assembly having circuitry in the form of a geometric pattern of conductive metal photoetched in a planar arrangement on a flexible substrate.
  • the flexible sub-' strate is wound on an arbor, with locating tabs being provided on the substrate to insure predetermined spacing between windings.
  • a registration pin is inserted through the tabs to prevent the substrate from unwinding, after which the wound substrate is removed from the arbor, vacuum impregnated to fill the voids between and around the windings and machined as required.
  • One object of this invention is to provide an induction coil having photoetched circuitry.
  • Another object of this invention is to provide an induction coil of the type described whereby electrical characteristics can be predetermined with a high degree of repeatability.
  • Another object of this invention is to provide a method for manufacturing an induction coil of the type described which permits greater control of manufacturing tolerances than has heretofore been po ssible.
  • Another object of this invention is to manufacture an induction coil of the type described at a lower cost than has heretofore been possible.
  • FIG. 1 is a partially sectioned side view of a flexible substrate according to the invention and having metal.- lic laminations on either side thereof.
  • FIG. 2 is a partially sectioned side view showing the flexible laminated substrate of FIG. 1 with plated through holes for electrically connecting the metallic laminations.
  • FIG. 3 is a side view showing the flexible laminated substrate of FIGS. 1 and 2 having circuit patterns
  • FIG. 4 is a diagrammatic representation showing the geometric form of the etched circuit patterns, withsaid patterns being connected by the plated through holes.
  • FIG. 5 is a top view of the etched flexible laminated substrate.
  • FIGS. 6, 7 and 8 are pictorial representations showing the laminated substrate of FIGS. 1-5 wound on an arbor and machined to provide a final induction coil in accordance with the invention.
  • FIG. 1 shows a flexible, continuous substrate 4 having metallic laminations 6 and 8 on either side thereof.
  • Substrate 4 may be a suitable pclyimide plastic such as that carrying the trade name Kapton and marketed by Du Pont Company, and is approximately 0.002 inches thick.
  • Laminations 6 and 8 may be one ounce copper strips (0.0014 inches thick) suitably bonded to substrate 4 as is well known in the art.
  • Holes 10 are drilled through substrate 4 and metallic laminations 6 and 8 at predetermined locations along the length thereof as shown in FIG. 2. The holes are then conventionally plated through with a suitable conductive material such as copper, with plated through holes 10 thereby providing electrical connections between metallic laminations 6 and 8.
  • Laminations 6 and 8 are etched by conventional photochemical methods to provide circuit patterns designated by the numerals 14 and 15, respectively, as shown in FIG. 3. Plated through holes 10 connect circuit patterns 14 and 15 as shown in the figure.
  • circuit pattern 14 includes a single planar coil 16 and a pair of connected planar coils l7 and 18, with the pattern, Le. a single coil and a pair of connected coils, being repeated along the length of substrate 4.
  • Circuit pattern 15 includes a repeatable pattern of a pair of connected coils 19 and 20 and a single coil 21.
  • Single coil 16 in circuit 14 is connected by a plated through hole 10 to coil 19 in circuit 15.
  • Another plated through hole 10 connects coils 17 and 20 while still another plated through hole 10 connects coils 18 and 21. It will now be understood that in this manner a continuous electrical circuit is provided along the length of substrate 4.
  • the completed photoetched substrate has a configuration as shown in FIG. 5, wherein only circuit 14 is shown.
  • Substrate 4 further includes locating tabs 22 which are positioned to allow a spaceof approximately 0.002 inches between windings when the substrate is wound on an arbor and the tabs aligned aswill behereinafter explained.
  • Tabs 22 have'holes 24 therethrough to accommodate a registration pin 28 shown in FIG. 7.
  • photoetched substrate 4 is wound on an arbor 25.
  • Locating tabs 22 are positioned to allow the aforenoted 0.002 inch space between windings when the substrate iswound on the arbor and the tabs aligned as shown in FIG. 7, with the space between windings carrying the description A.
  • Registration pin 28 is inserted through holes 24 in tabs 22 to prevent the substrate from unwinding as will now be understood.
  • the photoetching process lends itself to greater control of manufacturing tolerances. Due to the good repeatability and dimensional control, gaps can be reduced with a subsequent increase in torque being thus provided when a torquer application is intended. Finally, a coil assembly manufactured according to the invention can be achieved at a cost greatly reduced from that required for coil assemblies manufactured as now known in the art.
  • a coil assembly comprising: a flexible, continuous substrate; conductive circuit patterns on both sides of the substrate; means connecting the circuit patterns on one side of the substrate with those on the other side and providing a continuous circuit along the length of the substrate; locating tabs at predetermined points along the length of the substrate; said substrate with the continuous circuit thereon wound with the locating tabs in alignment to provide predetermined spaces between windings; and an insulating material in and around said spaces.
  • the conductive circuit patterns are geometric patterns of conductive metal in a planar arrangement on both sides of the substrate.
  • the means connecting the circuit patterns. on one side of the substrate with those on the other side and providing a continuous circuit along the length of the substrate includes through holes plated with a conductive metal.
  • a coil assembly as described by claim 4, wherein the means connecting the circuit patterns on one side of the substrate with those on the other side and providing a continuous circuit along the length of the substrate includes:

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Parts Printed On Printed Circuit Boards (AREA)
US00240081A 1972-03-31 1972-03-31 Photoetched induction coil assembly Expired - Lifetime US3736543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24008172A 1972-03-31 1972-03-31

Publications (1)

Publication Number Publication Date
US3736543A true US3736543A (en) 1973-05-29

Family

ID=22905037

Family Applications (1)

Application Number Title Priority Date Filing Date
US00240081A Expired - Lifetime US3736543A (en) 1972-03-31 1972-03-31 Photoetched induction coil assembly

Country Status (6)

Country Link
US (1) US3736543A (enrdf_load_stackoverflow)
JP (1) JPS5522923B2 (enrdf_load_stackoverflow)
CA (1) CA993965A (enrdf_load_stackoverflow)
DE (1) DE2315498C3 (enrdf_load_stackoverflow)
FR (1) FR2178954B1 (enrdf_load_stackoverflow)
GB (1) GB1391038A (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042373A (enrdf_load_stackoverflow) * 1973-08-18 1975-04-17
JPS5042372A (enrdf_load_stackoverflow) * 1973-08-18 1975-04-17
US4271370A (en) * 1979-09-21 1981-06-02 Litton Systems, Inc. Double air gap printed circuit rotor
US4421997A (en) * 1978-09-18 1983-12-20 Mcdonnell Douglas Corporation Multiple axis actuator
US4494100A (en) * 1982-07-12 1985-01-15 Motorola, Inc. Planar inductors
EP0153131A3 (en) * 1984-02-23 1985-09-25 Development Finance Corporation Of New Zealand Electric coil
WO1990001781A1 (en) * 1988-08-04 1990-02-22 Caterpillar Inc. Inductive coil structure
US4982157A (en) * 1988-09-22 1991-01-01 Siemens Aktiengesellschaft Superconducting gradiometer loop system of a multichannel measuring device
US5296831A (en) * 1989-10-02 1994-03-22 Deutsch Thomson Brandt Gmbh Coil arrangement for a focusing or track control circuit
US5369249A (en) * 1991-08-08 1994-11-29 Gold Star Co., Ltd. Inductor arrangement for an induction heating apparatus
US5565837A (en) * 1992-11-06 1996-10-15 Nidec America Corporation Low profile printed circuit board
US5714828A (en) * 1994-03-04 1998-02-03 U.S. Philips Corporation Electric motor having a stator and a rotor
US20030090171A1 (en) * 2001-11-14 2003-05-15 Sunonwealth Electric Machine Industry Co., Ltd. Direct current brushless motor
US20040145249A1 (en) * 2003-01-24 2004-07-29 Brown David C. Galvanometer motor with composite stator assembly
EP1998172A1 (fr) * 2007-05-30 2008-12-03 Snecma Repérage de points d'intérêt sur une zone de la surface d'une pièce et application à l'optimisation de la trajectoire et de l'angulation des sondes à courants de Foucault
EP2043130A2 (de) 2007-09-25 2009-04-01 Ceos Corrected Electron Optical Systems GmbH Multipolspulen
DE102007045946A1 (de) * 2007-09-25 2009-04-02 Stz Mechatronik Rollflexspule
EP2056309A1 (de) 2007-09-25 2009-05-06 STZ Mechatronik Verfahren zur Herstellung einer Spule und eine Spule
US20110057629A1 (en) * 2009-09-04 2011-03-10 Apple Inc. Harnessing power through electromagnetic induction utilizing printed coils
JP2011149861A (ja) * 2010-01-22 2011-08-04 Jtekt Corp 変位センサ装置及び転がり軸受装置
US20120013130A1 (en) * 2010-07-15 2012-01-19 Jung Sukho Electrical generator
US20130305520A1 (en) * 2012-05-20 2013-11-21 Trevor Graham Niblock Batch Manufacturing Meso Devices on flexible substrates
ITUB20161251A1 (it) * 2016-03-02 2017-09-02 Irca Spa Piano cottura ad induzione e metodo per la realizzazione di piani cottura ad induzione
US20180330882A1 (en) * 2017-05-12 2018-11-15 Murata Manufacturing Co., Ltd. Taping electronic component array
CN109860146A (zh) * 2019-02-18 2019-06-07 西安电子科技大学 一种基于硅通孔互连的高密度三维集成螺旋电感器
US10498183B2 (en) 2011-04-11 2019-12-03 Allied Motion Technologies Inc. Flexible winding for an electric motor and method of producing
US20220021262A1 (en) * 2020-07-17 2022-01-20 Ibiden Co., Ltd. Motor coil substrate and motor

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113546A1 (de) * 1980-04-03 1982-02-11 Murata Manufacturing Co., Ltd., Nagaokakyo, Kyoto Geraet fuer die automatische herstellung einer folgeanordnung von plaettchenfoermigen elektronischen teilchen
US4646024A (en) * 1983-11-02 1987-02-24 General Electric Company Transverse gradient field coils for nuclear magnetic resonance imaging
US4840700A (en) * 1983-11-02 1989-06-20 General Electric Company Current streamline method for coil construction
FI88079C (fi) * 1983-11-02 1993-03-25 Gen Electric Tvaer gradientspole, speciellt en spole foer bruk i nukleaera magnetiska resonansavbildningssystem
US4692705A (en) * 1983-12-23 1987-09-08 General Electric Company Radio frequency field coil for NMR
DE3635152A1 (de) * 1986-10-15 1988-04-21 Hoegl Helmut Elektromagnetische anordnung, insbesondere elektromagnetische wicklung
FI89130C (fi) * 1990-11-01 1993-08-25 Neuromag Oy Lokaliseringsspolar och anordning foer deras faestning vid huvudet foer anvaendning i magnetoenkefalografiska maetningar
DE19516448A1 (de) * 1995-05-04 1996-11-07 Siemens Matsushita Components Flexible Kunststoffolie mit magnetischen Eigenschaften
JP5839535B2 (ja) * 2010-10-20 2016-01-06 旭化成エレクトロニクス株式会社 平面コイル及びアクチュエータ
DE102021002062B4 (de) 2021-02-04 2022-08-11 Robert Kreikenbohm Warmhaltevorrichtung für auf einem Speisenträger angeordnete Speisen
DE202021001409U1 (de) 2021-04-16 2021-07-08 Robert Kreikenbohm Induktive Warmhaltevorrichtung für Speisen
DE202021001557U1 (de) 2021-04-28 2021-07-06 Robert Kreikenbohm Warmhaltevorrichtung für auf einem Speisenträger angeordnete Speisen
EP4475399A1 (en) * 2022-01-31 2024-12-11 Ibiden Co., Ltd. Coil substrate, coil substrate for motor, and motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014524A (en) * 1933-04-28 1935-09-17 Western Electric Co Article
US2786984A (en) * 1952-12-30 1957-03-26 Du Mont Allen B Lab Inc Printed-circuit shield
US3466586A (en) * 1966-02-26 1969-09-09 Emi Ltd Scanning coils
US3466580A (en) * 1965-07-30 1969-09-09 Emi Ltd Circuit elements especially for use as scanning coils
US3587019A (en) * 1965-07-30 1971-06-22 Emi Ltd Scanning coils

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE534603A (enrdf_load_stackoverflow) * 1954-01-15 1900-01-01
DE1023143B (de) * 1954-11-12 1958-01-23 Siemens Ag Gedruckte Wicklungen
FR1154224A (fr) * 1955-06-20 1958-04-03 Europ De Revetement Chimique S Nouveau procédé de fabrication de circuits électriques imprimés et circuits obtenus par ce procédé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2014524A (en) * 1933-04-28 1935-09-17 Western Electric Co Article
US2786984A (en) * 1952-12-30 1957-03-26 Du Mont Allen B Lab Inc Printed-circuit shield
US3466580A (en) * 1965-07-30 1969-09-09 Emi Ltd Circuit elements especially for use as scanning coils
US3587019A (en) * 1965-07-30 1971-06-22 Emi Ltd Scanning coils
US3466586A (en) * 1966-02-26 1969-09-09 Emi Ltd Scanning coils

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5042373A (enrdf_load_stackoverflow) * 1973-08-18 1975-04-17
JPS5042372A (enrdf_load_stackoverflow) * 1973-08-18 1975-04-17
US4421997A (en) * 1978-09-18 1983-12-20 Mcdonnell Douglas Corporation Multiple axis actuator
US4271370A (en) * 1979-09-21 1981-06-02 Litton Systems, Inc. Double air gap printed circuit rotor
US4494100A (en) * 1982-07-12 1985-01-15 Motorola, Inc. Planar inductors
EP0153131A3 (en) * 1984-02-23 1985-09-25 Development Finance Corporation Of New Zealand Electric coil
US4639708A (en) * 1984-02-23 1987-01-27 Development Finance Corporation Of New Zealand Parallelogram electric coil helically wound
WO1990001781A1 (en) * 1988-08-04 1990-02-22 Caterpillar Inc. Inductive coil structure
US4982157A (en) * 1988-09-22 1991-01-01 Siemens Aktiengesellschaft Superconducting gradiometer loop system of a multichannel measuring device
US5296831A (en) * 1989-10-02 1994-03-22 Deutsch Thomson Brandt Gmbh Coil arrangement for a focusing or track control circuit
US5369249A (en) * 1991-08-08 1994-11-29 Gold Star Co., Ltd. Inductor arrangement for an induction heating apparatus
US5565837A (en) * 1992-11-06 1996-10-15 Nidec America Corporation Low profile printed circuit board
US5714828A (en) * 1994-03-04 1998-02-03 U.S. Philips Corporation Electric motor having a stator and a rotor
US20030090171A1 (en) * 2001-11-14 2003-05-15 Sunonwealth Electric Machine Industry Co., Ltd. Direct current brushless motor
US6608411B2 (en) * 2001-11-14 2003-08-19 Sunonwealth Electric Machine Industry Co., Ltd. Direct current brushless motor
US20040145249A1 (en) * 2003-01-24 2004-07-29 Brown David C. Galvanometer motor with composite stator assembly
WO2004068675A1 (en) * 2003-01-24 2004-08-12 Gsi Lumonics Corporation Galvanometer motor with composite stator assembly
US6982504B2 (en) 2003-01-24 2006-01-03 Gsi Group Corporation Galvanometer motor with composite stator assembly
EP1998172A1 (fr) * 2007-05-30 2008-12-03 Snecma Repérage de points d'intérêt sur une zone de la surface d'une pièce et application à l'optimisation de la trajectoire et de l'angulation des sondes à courants de Foucault
US20080297149A1 (en) * 2007-05-30 2008-12-04 Snecma Identification of points of interest in a region of the surface of a part and application to the optimization of the path and of the angular position of eddy current probes
FR2916852A1 (fr) * 2007-05-30 2008-12-05 Snecma Sa Reperage de points d'interet sur une zone de la surface d'une piece et application a l'optimisation de la trajectoire et de l'angulation des sondes a courants de foucault
US7944204B2 (en) 2007-05-30 2011-05-17 Snecma Identification of points of interest in a region of the surface of a part and application to the optimization of the path and of the angular position of eddy current probes
DE102007045946A1 (de) * 2007-09-25 2009-04-02 Stz Mechatronik Rollflexspule
US20090084975A1 (en) * 2007-09-25 2009-04-02 Ceos Corrected Electron Optical Systems Gmbh Multipole coils
DE102007045874A1 (de) * 2007-09-25 2009-04-02 Ceos Corrected Electron Optical Systems Gmbh Multipolspulen
EP2056309A1 (de) 2007-09-25 2009-05-06 STZ Mechatronik Verfahren zur Herstellung einer Spule und eine Spule
DE102008012120A1 (de) * 2007-09-25 2009-09-10 Stz Mechatronik Verfahren zur Herstellung einer Spule und Spule
US7786450B2 (en) 2007-09-25 2010-08-31 Ceos Corrected Electron Optical Systems Gmbh Multipole coils
DE102008012120B4 (de) * 2007-09-25 2014-07-03 Steinbeis Mechatronik Gmbh Verfahren zur Herstellung einer Spule und Spule
EP2043130A2 (de) 2007-09-25 2009-04-01 Ceos Corrected Electron Optical Systems GmbH Multipolspulen
US8362751B2 (en) 2009-09-04 2013-01-29 Apple Inc. Harnessing power through electromagnetic induction utilizing printed coils
US8193781B2 (en) * 2009-09-04 2012-06-05 Apple Inc. Harnessing power through electromagnetic induction utilizing printed coils
US20110057629A1 (en) * 2009-09-04 2011-03-10 Apple Inc. Harnessing power through electromagnetic induction utilizing printed coils
JP2011149861A (ja) * 2010-01-22 2011-08-04 Jtekt Corp 変位センサ装置及び転がり軸受装置
US8432049B2 (en) * 2010-07-15 2013-04-30 Sukho JUNG Electrical generator
US20120013130A1 (en) * 2010-07-15 2012-01-19 Jung Sukho Electrical generator
US10498183B2 (en) 2011-04-11 2019-12-03 Allied Motion Technologies Inc. Flexible winding for an electric motor and method of producing
US20130305520A1 (en) * 2012-05-20 2013-11-21 Trevor Graham Niblock Batch Manufacturing Meso Devices on flexible substrates
ITUB20161251A1 (it) * 2016-03-02 2017-09-02 Irca Spa Piano cottura ad induzione e metodo per la realizzazione di piani cottura ad induzione
WO2017149445A1 (en) * 2016-03-02 2017-09-08 I.R.C.A. S.P.A. - Industria Resistenze Corazzate E Affini Induction hob and method for making induction hobs
US11166349B2 (en) 2016-03-02 2021-11-02 I.R.C.A. S.P.A.—Industria Resistenze Corazzate E Affini Induction hob and method for making induction hobs
US20180330882A1 (en) * 2017-05-12 2018-11-15 Murata Manufacturing Co., Ltd. Taping electronic component array
US10755858B2 (en) * 2017-05-12 2020-08-25 Murata Manufacturing Co., Ltd. Taping electronic component array
CN109860146A (zh) * 2019-02-18 2019-06-07 西安电子科技大学 一种基于硅通孔互连的高密度三维集成螺旋电感器
US20220021262A1 (en) * 2020-07-17 2022-01-20 Ibiden Co., Ltd. Motor coil substrate and motor
US12040671B2 (en) * 2020-07-17 2024-07-16 Ibiden Co., Ltd. Motor coil substrate comprising flexible substrate and coils and motor formed thereof

Also Published As

Publication number Publication date
GB1391038A (en) 1975-04-16
DE2315498B2 (de) 1978-09-28
CA993965A (en) 1976-07-27
JPS4914970A (enrdf_load_stackoverflow) 1974-02-08
JPS5522923B2 (enrdf_load_stackoverflow) 1980-06-19
FR2178954A1 (enrdf_load_stackoverflow) 1973-11-16
FR2178954B1 (enrdf_load_stackoverflow) 1976-05-21
DE2315498C3 (de) 1979-05-23
DE2315498A1 (de) 1973-10-04

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