US3323091A - Multicore transformer including integral mounting assembly - Google Patents
Multicore transformer including integral mounting assembly Download PDFInfo
- Publication number
- US3323091A US3323091A US409080A US40908064A US3323091A US 3323091 A US3323091 A US 3323091A US 409080 A US409080 A US 409080A US 40908064 A US40908064 A US 40908064A US 3323091 A US3323091 A US 3323091A
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- multicore
- cores
- shield
- mounting assembly
- including integral
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- 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
- H01F27/02—Casings
- H01F27/027—Casings specially adapted for combination of signal type inductors or transformers with electronic circuits, e.g. mounting on printed circuit boards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F2038/006—Adaptations of transformers or inductances for specific applications or functions matrix transformer consisting of several interconnected individual transformers working as a whole
Definitions
- FIG. 2 MULTICORE TRANSFORMER INCLUDING INTEGRAL MOUNTING ASSEMBLY Filed Nov. 5.. 1964 FIG. 2
- the present invention relates to multicore transformers, and more particularly to shielding and coupling between the cores of multicore transformers.
- a multicore transformer having at least two magnetic cores with central openings therethrough are mounted on opposite sides of an electrostatic shield or guard.
- the two cores and their respective windings are coupled by single loop link, one member of which is passed through the centers of the cores and an aperture in the shield.
- This member is preferably a mounting bolt for mounting the said cores in axial alignment with each other, and on opposite sides of the said shield.
- the mounting bolt can be insulated or electrically connected for an electrical contact with the shield as dictated by the design requirements of the associate equipment.
- an insulated lead is connected to each end of the mounting bolt and taken through a second aperture in the shield allowing the shield to be electrically connected to the loop at only one point. This eliminates the possibility of any currents being set up in the shield itself or coupling between adjacent transformers.
- An object of the invention is the provision of a high degree of electrostatic shielding between adjacent windings in multicore transformers.
- a further object is the provision of eifective electrostatic shielding in multicore transformers which is simple, compact and relatively inexpensive. 7
- FIG. 1 illustrates the present invention in a partially sectioned perspective View
- FIG. 2 illustrates the preferred embodiment of the present invention in schematic form.
- transformer cores 11 are mounted on one side of electrostatic shield 12, and transformer cores 13 are mounted opposite transformer cores 11 on the other side of the capacitive shield 12.
- the cores directly opposite each other form one transformer.
- a conductor, for example a bolt 14, passes through the central openings 16 of opposite cores and an aperture 17 in electrostatic shield 12.
- Leads 18 are connected at each end to mounting bolts 17 and passed through apertures 19 in electrostatic shield 12 to complete the single turn coupling for each transformer.
- Circuit boards 21 are mounted on the other ends of the cores 11 and 13 to constitute a a compact electronic assembly with inductive coupling between the two chassis and excellent-electrostic shielding between the two chassis.
- cores 11 and 13 are coupled by a single tum loop comprising conductor leads 14 and 18,
- connection at 17 is the aperture which can be threaded for a threadable engagement with the coupling bolt 14.
- the shield 12 is shown grounded.
- the coupling bolt 14 could be insulated from the electrostatic shield 12 instead of electrically connected as shown.
- the other windings on the cores may be utilized to provide means for supplying input or output signals to the transformer.
- Apparatus for producing a plurality of multicore transformers comprising, a plurality of pairs of magnetic cores, said cores being generally toroidal in configuration and having a central aperture therein, electrostatic shielding means having a planar configuration and including a first plurality of apertures therein, a first plurality of electrically conductive means individually passing through said central apertures of each pair of said magnetic cores and through a separate one of said first plurality of apertures in said shielding means to mount each pair of magnetic cores in axial alignment on said electrostatic shielding means, said shielding means disposed between said magnetic cores of each said pair, a second plurality of electrically conductive means individually connected in parallel with separate ones of said first plurality of electrically conductive means and disposed external of said magnetic cores thereby to eifect a plurality of multicore transformers each of which is linked by a single turn winding, said electrostatic shielding means including a further plurality of apertures therein, each of said second electrically conductive means being disposed to pass through one
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Regulation Of General Use Transformers (AREA)
Description
y 30, 1967 F. e. HIBBITS 3,323,091
MULTICORE TRANSFORMER INCLUDING INTEGRAL MOUNTING ASSEMBLY Filed Nov. 5.. 1964 FIG. 2
INVENTOR. FORREST G1 H/BB/TS United States Patent 3,323,091 MULTICORE TRANSFGRMER INCLUDING INTEGRAL MOUNTING ASSEMBLY Forrest G. Hibbits, San Diego, Calif., 'assignor, by mesne assignments, to Honeywell Inc, Minneapolis, Minn, a
corporation of Delaware Filed Nov. 5, 1964, Ser. No. 409,080 1 Claim. (Cl. 336-84) The present invention relates to multicore transformers, and more particularly to shielding and coupling between the cores of multicore transformers.
According to the invention, a multicore transformer having at least two magnetic cores with central openings therethrough are mounted on opposite sides of an electrostatic shield or guard. The two cores and their respective windings are coupled by single loop link, one member of which is passed through the centers of the cores and an aperture in the shield. This member is preferably a mounting bolt for mounting the said cores in axial alignment with each other, and on opposite sides of the said shield. The mounting bolt can be insulated or electrically connected for an electrical contact with the shield as dictated by the design requirements of the associate equipment. To complete the single turn coupling loop an insulated lead is connected to each end of the mounting bolt and taken through a second aperture in the shield allowing the shield to be electrically connected to the loop at only one point. This eliminates the possibility of any currents being set up in the shield itself or coupling between adjacent transformers.
An object of the invention is the provision of a high degree of electrostatic shielding between adjacent windings in multicore transformers.
A further object is the provision of eifective electrostatic shielding in multicore transformers which is simple, compact and relatively inexpensive. 7
Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawing in which like reference numerals designate like parts throughout the figures thereof and wherein:
FIG. 1 illustrates the present invention in a partially sectioned perspective View;
FIG. 2 illustrates the preferred embodiment of the present invention in schematic form.
Referring to FIG. 1, transformer cores 11 are mounted on one side of electrostatic shield 12, and transformer cores 13 are mounted opposite transformer cores 11 on the other side of the capacitive shield 12. The cores directly opposite each other form one transformer. A conductor, for example a bolt 14, passes through the central openings 16 of opposite cores and an aperture 17 in electrostatic shield 12. Leads 18 are connected at each end to mounting bolts 17 and passed through apertures 19 in electrostatic shield 12 to complete the single turn coupling for each transformer. Circuit boards 21 are mounted on the other ends of the cores 11 and 13 to constitute a a compact electronic assembly with inductive coupling between the two chassis and excellent-electrostic shielding between the two chassis.
As shown in FIG. 2, cores 11 and 13 are coupled by a single tum loop comprising conductor leads 14 and 18,
It should be understood of course that the foregoing disclosure relates to only a preferred embodiment of the invention and that it is intended to cover all changes and modifications of the example of the invention herein chosen for the purpose of the disclosure, which do not constitute departures from the spirit and scope of the invention.
What is claimed is:
Apparatus for producing a plurality of multicore transformers comprising, a plurality of pairs of magnetic cores, said cores being generally toroidal in configuration and having a central aperture therein, electrostatic shielding means having a planar configuration and including a first plurality of apertures therein, a first plurality of electrically conductive means individually passing through said central apertures of each pair of said magnetic cores and through a separate one of said first plurality of apertures in said shielding means to mount each pair of magnetic cores in axial alignment on said electrostatic shielding means, said shielding means disposed between said magnetic cores of each said pair, a second plurality of electrically conductive means individually connected in parallel with separate ones of said first plurality of electrically conductive means and disposed external of said magnetic cores thereby to eifect a plurality of multicore transformers each of which is linked by a single turn winding, said electrostatic shielding means including a further plurality of apertures therein, each of said second electrically conductive means being disposed to pass through one of said further plurality of apertures, and a plurality of circuit boards adapted for supporting electrical components thereon, said circuit boards disposed adjacent said multicore transformer apparatus to form a compact assembly which permits electrical interconnection between components of said circuit boards and said transformers thereby providing inductive coupling and electrostatic isolation therebetween.
References Cited UNITED STATES PATENTS 1,837,245 12/1931 Wheeler 336-84 X 1,953,779 4/1934 Sclater 336-82 2,827,615 3/1958 Henderson 3362l2 X 2,829,338 4/1958 Lord 336-212 X 2,907,965 10/1959 Mercier 336-84 2,968,807 1/1961 Troost et al 336-2l2 X 3,020,502 2/1962 Graham 336229 X LEWIS H. MYERS, Primary Examiner.
T. J. KOZMA, Assistant Examiner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US409080A US3323091A (en) | 1964-11-05 | 1964-11-05 | Multicore transformer including integral mounting assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US409080A US3323091A (en) | 1964-11-05 | 1964-11-05 | Multicore transformer including integral mounting assembly |
Publications (1)
Publication Number | Publication Date |
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US3323091A true US3323091A (en) | 1967-05-30 |
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US409080A Expired - Lifetime US3323091A (en) | 1964-11-05 | 1964-11-05 | Multicore transformer including integral mounting assembly |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3121619A (en) * | 1959-10-19 | 1964-02-18 | Philips Corp | Zone-melting method and apparatus |
US4370700A (en) * | 1980-06-03 | 1983-01-25 | Motorola Inc. | RF Package including RF shielding for a multiple PC board |
US4665357A (en) * | 1984-04-23 | 1987-05-12 | Edward Herbert | Flat matrix transformer |
US4942353A (en) * | 1989-09-29 | 1990-07-17 | Fmtt, Inc. | High frequency matrix transformer power converter module |
WO1993009584A1 (en) * | 1991-11-01 | 1993-05-13 | Neolite Neon Company Pty Limited | Open circuit monitor |
US5236048A (en) * | 1991-12-10 | 1993-08-17 | Halliburton Company | Apparatus and method for communicating electrical signals in a well, including electrical coupling for electric circuits therein |
US5430613A (en) * | 1993-06-01 | 1995-07-04 | Eaton Corporation | Current transformer using a laminated toroidal core structure and a lead frame |
US5594402A (en) * | 1995-06-02 | 1997-01-14 | International Power Group, Inc. | High voltage isolating transformer module |
US5909865A (en) * | 1996-11-21 | 1999-06-08 | Hermann Stahl Gmbh | Support for a printed circuit board with electronic components |
US20050110606A1 (en) * | 2003-11-26 | 2005-05-26 | Patrizio Vinciarelli | Printed circuit transformer |
US8498124B1 (en) * | 2009-12-10 | 2013-07-30 | Universal Lighting Technologies, Inc. | Magnetic circuit board stacking component |
US20130328543A1 (en) * | 2012-06-06 | 2013-12-12 | Lien-Hsing Chen | Miniaturize voltage-transforming device |
US9279564B1 (en) | 2011-08-11 | 2016-03-08 | Universal Lighting Technologies, Inc. | Indirect area lighting apparatus and methods |
US20190333677A1 (en) * | 2018-04-28 | 2019-10-31 | Delta Electronics (Shanghai) Co., Ltd. | Inductor applied to power module and power module |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1837245A (en) * | 1928-05-05 | 1931-12-22 | Western Electric Co | Inductance device |
US1953779A (en) * | 1933-11-02 | 1934-04-03 | Gen Electric | Transformer |
US2827615A (en) * | 1955-11-07 | 1958-03-18 | Gen Electric | Inductive device |
US2829338A (en) * | 1954-05-13 | 1958-04-01 | Gen Electric | Test transformer for ring-type magnetic cores |
US2907965A (en) * | 1956-08-24 | 1959-10-06 | Allis Chalmers Mfg Co | Reactor with end shielding having disk laminations |
US2968807A (en) * | 1957-05-04 | 1961-01-17 | Telefunken Gmbh | Ferro-magnetic core antenna |
US3020502A (en) * | 1959-07-01 | 1962-02-06 | Collins Radio Co | Multicore transformer |
-
1964
- 1964-11-05 US US409080A patent/US3323091A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1837245A (en) * | 1928-05-05 | 1931-12-22 | Western Electric Co | Inductance device |
US1953779A (en) * | 1933-11-02 | 1934-04-03 | Gen Electric | Transformer |
US2829338A (en) * | 1954-05-13 | 1958-04-01 | Gen Electric | Test transformer for ring-type magnetic cores |
US2827615A (en) * | 1955-11-07 | 1958-03-18 | Gen Electric | Inductive device |
US2907965A (en) * | 1956-08-24 | 1959-10-06 | Allis Chalmers Mfg Co | Reactor with end shielding having disk laminations |
US2968807A (en) * | 1957-05-04 | 1961-01-17 | Telefunken Gmbh | Ferro-magnetic core antenna |
US3020502A (en) * | 1959-07-01 | 1962-02-06 | Collins Radio Co | Multicore transformer |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3121619A (en) * | 1959-10-19 | 1964-02-18 | Philips Corp | Zone-melting method and apparatus |
US4370700A (en) * | 1980-06-03 | 1983-01-25 | Motorola Inc. | RF Package including RF shielding for a multiple PC board |
US4665357A (en) * | 1984-04-23 | 1987-05-12 | Edward Herbert | Flat matrix transformer |
US4942353A (en) * | 1989-09-29 | 1990-07-17 | Fmtt, Inc. | High frequency matrix transformer power converter module |
WO1991005355A1 (en) * | 1989-09-29 | 1991-04-18 | Fmtt, Inc. | High frequency matrix transformer power converter module |
WO1993009584A1 (en) * | 1991-11-01 | 1993-05-13 | Neolite Neon Company Pty Limited | Open circuit monitor |
US5236048A (en) * | 1991-12-10 | 1993-08-17 | Halliburton Company | Apparatus and method for communicating electrical signals in a well, including electrical coupling for electric circuits therein |
US5430613A (en) * | 1993-06-01 | 1995-07-04 | Eaton Corporation | Current transformer using a laminated toroidal core structure and a lead frame |
US5594402A (en) * | 1995-06-02 | 1997-01-14 | International Power Group, Inc. | High voltage isolating transformer module |
US5757258A (en) * | 1995-06-02 | 1998-05-26 | International Power Group, Inc. | High voltage isolating transformer module with substrates separated by a fixed distance |
US5909865A (en) * | 1996-11-21 | 1999-06-08 | Hermann Stahl Gmbh | Support for a printed circuit board with electronic components |
US20050110606A1 (en) * | 2003-11-26 | 2005-05-26 | Patrizio Vinciarelli | Printed circuit transformer |
US7187263B2 (en) | 2003-11-26 | 2007-03-06 | Vlt, Inc. | Printed circuit transformer |
US8498124B1 (en) * | 2009-12-10 | 2013-07-30 | Universal Lighting Technologies, Inc. | Magnetic circuit board stacking component |
US9279564B1 (en) | 2011-08-11 | 2016-03-08 | Universal Lighting Technologies, Inc. | Indirect area lighting apparatus and methods |
US20130328543A1 (en) * | 2012-06-06 | 2013-12-12 | Lien-Hsing Chen | Miniaturize voltage-transforming device |
US9148066B2 (en) * | 2012-06-06 | 2015-09-29 | Power Mate Technology Co., Ltd. | Miniaturize voltage-transforming device |
US20190333677A1 (en) * | 2018-04-28 | 2019-10-31 | Delta Electronics (Shanghai) Co., Ltd. | Inductor applied to power module and power module |
CN110417235A (en) * | 2018-04-28 | 2019-11-05 | 台达电子企业管理(上海)有限公司 | Inductance and power module applied to power module |
CN110417235B (en) * | 2018-04-28 | 2023-08-29 | 台达电子企业管理(上海)有限公司 | Inductance applied to power module and power module |
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