US414266A - Iron-cased induction-coil for alternating-current transfer - Google Patents
Iron-cased induction-coil for alternating-current transfer Download PDFInfo
- Publication number
- US414266A US414266A US414266DA US414266A US 414266 A US414266 A US 414266A US 414266D A US414266D A US 414266DA US 414266 A US414266 A US 414266A
- Authority
- US
- United States
- Prior art keywords
- iron
- coil
- induction
- coils
- alternating
- 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
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 66
- 229910052742 iron Inorganic materials 0.000 description 36
- 230000005291 magnetic Effects 0.000 description 22
- 239000004020 conductor Substances 0.000 description 8
- 230000001939 inductive effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
- H01F27/292—Surface mounted devices
Definitions
- My invention consists in disposing the wires of an induction-coil so as to bring the conductors of the primary and secondary coils into close proXimity L'. a, to make every wire or turn of the primary as near as practicable to all the turns of the secondary, and every single turn of the secondary as near as practicable to every turn of the primary coil. This is done by making the combined sections of the two coils, however wound, approximate a square or other equilateral or a circular figure, as' such figure has a maximum area included under minimum length of boundaries, and all parts therefore are as near together as practicable.
- the circular section would be the most perfect, but it is difficult to wind wire in such section, and a square gives ease of winding and almost as good effects in practice. A slightly-rectangular section would depart a little in effect from that of a square section.
- Anotherimprovement consists in giving the combined primary and secondary coils of a square or circular or approximate transverse section a diameter such that the coils may inclose a large body of iron in the center and may be inclosed or incased in iron for the purpose of providing as complete as practicable a magnetic circuit around the coils.
- the mag netic casing goes all over and around the coils and is made, preferably, of soft iron divided into strips, sheets, or wires, the divisions always existing parallel to the direction of magnetic polarization and transverse to the direction of currents in the coils so as to cut off all flow of induced current in the casing of iron. 45
- the minimum length of such casing or magnetic circuit around the coils is also secured by giving the said coils a circular or approximate section, a square section answering the purpose sufficiently well, as the wires are 50 massed closely together.
- Figure 1 shows a square section-coil, the primary and secondary P and S being massed and placed in lateral juxtaposition.
- Fig. 2 shows a square section-coil with the primary and secondary superposed.
- Fig. 3 shows two primariesP P, with a secondary coil S between. In Fig. at the combined section of the coils P S is nearly round.
- Fig. 5 is a cross-section of a coilwith an iron envelope made of wire.
- Fig. 6 is a side elevation and section of the same.
- Fig. 7 is a side elevation of a modified form of envelope or casing.
- Fig. 8 is a cross-section.
- Fig. 9 is a modification-of theform shown in Figs. 7 and S.
- FIGs. 7 and 8 the casing is modified to facilitate construction and adjustment.
- a central core of sheet-iron or wire C has its magnetic circuit completed and intensified by end plates 1, slit from the center out so as to divide them at several points and prevent currents being set up in them, and the outer edges of the end plates are magnetically united by iron wires or by sheet-iron strips 1', connecting the outer edges of I, as shown.
- the plates 1 might be made continuous with I, and of sheet-iron stamped into the shape I, Fig. 9, and placed as shown with respect to the core C. This special construction forms the subject of another application.
- the core C may be made movable in its length so as to vary the permeability or completeness of the magnetic circuit around coils P and S, and so vary their inductive effects.
- ⁇ Vhat I claim as my invention is 1.
Description
(No Model.)
. E. THOMSON. IRON CASED INDUCTION COIL FOR ALTERNATING CURRENT TRANSFER.
No. 414,266. Patented Nov. 5, 1889.
/NV NTOfi M 7 zm/ ATTORNEYS Nv PETERS. Mum-w. wamm, D (1 UNITED STATES PATENT OFFICE.
ELIHU THOMSON, OF LYNN, MASSACHUSETTS, ASSIGNOR TO THE THOMSON- HOUSTON ELECTRIC COMPANY, OF CONNECTICUT.
IRON-CASED INDUCTION-COIL FOR ALTERNATING-CURRENT TRANSFER.
SPECIFICATION forming part of Letters Patent No. 414,266, dated November 5, 1889.
Application filed February 12, 1887. Serial No. 227,446. (No model.)
To all whom it may concern.-
Be it known that I, ELIHU THOMSON, acitizen of the United States, and a resident of Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Iron-Cased Induction-Coils for Alternating-Current Transfer, of which the following is a specification.
My invention consists in disposing the wires of an induction-coil so as to bring the conductors of the primary and secondary coils into close proXimity L'. a, to make every wire or turn of the primary as near as practicable to all the turns of the secondary, and every single turn of the secondary as near as practicable to every turn of the primary coil. This is done by making the combined sections of the two coils, however wound, approximate a square or other equilateral or a circular figure, as' such figure has a maximum area included under minimum length of boundaries, and all parts therefore are as near together as practicable. The circular section would be the most perfect, but it is difficult to wind wire in such section, and a square gives ease of winding and almost as good effects in practice. A slightly-rectangular section would depart a little in effect from that of a square section.
Anotherimprovement consists in giving the combined primary and secondary coils of a square or circular or approximate transverse section a diameter such that the coils may inclose a large body of iron in the center and may be inclosed or incased in iron for the purpose of providing as complete as practicable a magnetic circuit around the coils. The mag netic casing goes all over and around the coils and is made, preferably, of soft iron divided into strips, sheets, or wires, the divisions always existing parallel to the direction of magnetic polarization and transverse to the direction of currents in the coils so as to cut off all flow of induced current in the casing of iron. 45 The minimum length of such casing or magnetic circuit around the coils is also secured by giving the said coils a circular or approximate section, a square section answering the purpose sufficiently well, as the wires are 50 massed closely together.
In the accompanying drawings, Figure 1 shows a square section-coil, the primary and secondary P and S being massed and placed in lateral juxtaposition. Fig. 2 shows a square section-coil with the primary and secondary superposed. Fig. 3 shows two primariesP P, with a secondary coil S between. In Fig. at the combined section of the coils P S is nearly round. Fig. 5 is a cross-section of a coilwith an iron envelope made of wire. Fig. 6 is a side elevation and section of the same. Fig. 7 is a side elevation of a modified form of envelope or casing. Fig. 8 is a cross-section. Fig. 9 is a modification-of theform shown in Figs. 7 and S.
Iwind the coils disposed as in Figs. 1, 2, 3, and 4:, with iron wire I I, Figs. 5 and 6, the wire passing through the axis and over the exterior, giving an iron casing covering the coils externally of the shortest length of magnetic circuit, and in which magnetic circuit reversals of magnetism take place during passage of alternating currents in the coil P, the result being the induction of very powerful currents in S, but little inferior in energy to the currents in the primary coil.
In Figs. 7 and 8 the casing is modified to facilitate construction and adjustment. A central core of sheet-iron or wire C has its magnetic circuit completed and intensified by end plates 1, slit from the center out so as to divide them at several points and prevent currents being set up in them, and the outer edges of the end plates are magnetically united by iron wires or by sheet-iron strips 1', connecting the outer edges of I, as shown. The plates 1 might be made continuous with I, and of sheet-iron stamped into the shape I, Fig. 9, and placed as shown with respect to the core C. This special construction forms the subject of another application.
The core C may be made movable in its length so as to vary the permeability or completeness of the magnetic circuit around coils P and S, and so vary their inductive effects.
\Vhat I claim as my invention is 1. The combination, with. an induction-coil having its primary and secondary conductors arranged as described, so that the cross-sectional figure will approach a square orother angular form whose sides are of substantially equal length, of an iron casing applied as shown and described, so as to have minimum magnetic resistance.
2. An induction-coil clad with iron inclosing both primary and secondary conductors, said primary and secondary coils together having a figure in cross-section which is substantiallya square with sides of substantially equal length,- as and for the purpose described.
3. The combination, with one or more electric coils, of U-shaped iron plates or pieces between whose legs the conductors of the coil lie, and yoke-pieces connecting the two legs, so as to complete a magnetic circuit around the circumferential axis of the coil.
'4. The combination, with one or more electric coils, of a magnetic envelope formed at the sides of the coil, of masses of iron subdi vided in lines transverse to the lineof the coils, but substantially parallel to the plane of winding, and alaminated mass of iron connecting the iron at the sides of the coil on the outer periphery thereof, as and for the purpose described.
Signed atLynn, in the county of Essex and State of Massachusetts, this 7th day of February, A. D. 1887.
ELIHU THOMSON.
Witnesses:
J. W. GIBBONEY, E. WILBUR RICE, Jr.
Publications (1)
Publication Number | Publication Date |
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US414266A true US414266A (en) | 1889-11-05 |
Family
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Family Applications (1)
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US414266D Expired - Lifetime US414266A (en) | Iron-cased induction-coil for alternating-current transfer |
Country Status (1)
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US (1) | US414266A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3956651A (en) * | 1974-11-05 | 1976-05-11 | General Electric Company | Wire stator structure |
US5400005A (en) * | 1992-01-13 | 1995-03-21 | Albar, Incorporated | Toroidal transformer with magnetic shunt |
WO2000033331A1 (en) * | 1998-11-30 | 2000-06-08 | Buswell Harrie R | Wire core inductive devices |
US6239681B1 (en) * | 1998-11-30 | 2001-05-29 | Harrie R. Buswell | Wire core for induction coils |
WO2002059916A1 (en) * | 2001-01-23 | 2002-08-01 | Buswell Harrie R | Inductive devices having a wire core with wires of different shapes and methods of making the same |
US6522231B2 (en) * | 1998-11-30 | 2003-02-18 | Harrie R. Buswell | Power conversion systems utilizing wire core inductive devices |
US20110198932A1 (en) * | 2010-02-18 | 2011-08-18 | Alpha Technologies Inc. | Ferroresonant transformer for use in uninterruptible power supplies |
US9030045B2 (en) | 2011-01-23 | 2015-05-12 | Alpha Technologies Inc. | Switching systems and methods for use in uninterruptible power supplies |
US9234916B2 (en) | 2012-05-11 | 2016-01-12 | Alpha Technologies Inc. | Status monitoring cables for generators |
US10074981B2 (en) | 2015-09-13 | 2018-09-11 | Alpha Technologies Inc. | Power control systems and methods |
US10381867B1 (en) | 2015-10-16 | 2019-08-13 | Alpha Technologeis Services, Inc. | Ferroresonant transformer systems and methods with selectable input and output voltages for use in uninterruptible power supplies |
US10635122B2 (en) | 2017-07-14 | 2020-04-28 | Alpha Technologies Services, Inc. | Voltage regulated AC power supply systems and methods |
-
0
- US US414266D patent/US414266A/en not_active Expired - Lifetime
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3956651A (en) * | 1974-11-05 | 1976-05-11 | General Electric Company | Wire stator structure |
US5400005A (en) * | 1992-01-13 | 1995-03-21 | Albar, Incorporated | Toroidal transformer with magnetic shunt |
WO2000033331A1 (en) * | 1998-11-30 | 2000-06-08 | Buswell Harrie R | Wire core inductive devices |
US6239681B1 (en) * | 1998-11-30 | 2001-05-29 | Harrie R. Buswell | Wire core for induction coils |
US6268786B1 (en) * | 1998-11-30 | 2001-07-31 | Harrie R. Buswell | Shielded wire core inductive devices |
US6522231B2 (en) * | 1998-11-30 | 2003-02-18 | Harrie R. Buswell | Power conversion systems utilizing wire core inductive devices |
US6583698B2 (en) | 1998-11-30 | 2003-06-24 | Harrie R. Buswell | Wire core inductive devices |
WO2002059916A1 (en) * | 2001-01-23 | 2002-08-01 | Buswell Harrie R | Inductive devices having a wire core with wires of different shapes and methods of making the same |
US20050093671A1 (en) * | 2001-01-23 | 2005-05-05 | Buswell Harrie R. | Inductive devices having a wire core with wires of different shapes and methods of making the same |
US6891459B1 (en) | 2001-01-23 | 2005-05-10 | Harrie R. Buswell | Inductive devices having a wire core with wires of different shapes and methods of making the same |
US20110198932A1 (en) * | 2010-02-18 | 2011-08-18 | Alpha Technologies Inc. | Ferroresonant transformer for use in uninterruptible power supplies |
US8575779B2 (en) | 2010-02-18 | 2013-11-05 | Alpha Technologies Inc. | Ferroresonant transformer for use in uninterruptible power supplies |
US9633781B2 (en) | 2010-02-18 | 2017-04-25 | Alpha Technologies Inc. | Ferroresonant transformer for use in uninterruptible power supplies |
US10819144B2 (en) | 2010-02-18 | 2020-10-27 | Alpha Technologies Services, Inc. | Ferroresonant transformer for use in uninterruptible power supplies |
US9030045B2 (en) | 2011-01-23 | 2015-05-12 | Alpha Technologies Inc. | Switching systems and methods for use in uninterruptible power supplies |
US9812900B2 (en) | 2011-01-23 | 2017-11-07 | Alpha Technologies Inc. | Switching systems and methods for use in uninterruptible power supplies |
US10355521B2 (en) | 2011-01-23 | 2019-07-16 | Alpha Technologies Services, Inc. | Switching systems and methods for use in uninterruptible power supplies |
US9234916B2 (en) | 2012-05-11 | 2016-01-12 | Alpha Technologies Inc. | Status monitoring cables for generators |
US10074981B2 (en) | 2015-09-13 | 2018-09-11 | Alpha Technologies Inc. | Power control systems and methods |
US10790665B2 (en) | 2015-09-13 | 2020-09-29 | Alpha Technologies Services, Inc. | Power control systems and methods |
US10381867B1 (en) | 2015-10-16 | 2019-08-13 | Alpha Technologeis Services, Inc. | Ferroresonant transformer systems and methods with selectable input and output voltages for use in uninterruptible power supplies |
US10635122B2 (en) | 2017-07-14 | 2020-04-28 | Alpha Technologies Services, Inc. | Voltage regulated AC power supply systems and methods |
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