EP3067903B1 - Elektromagnetische induktionsvorrichtung - Google Patents

Elektromagnetische induktionsvorrichtung Download PDF

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Publication number
EP3067903B1
EP3067903B1 EP13897002.5A EP13897002A EP3067903B1 EP 3067903 B1 EP3067903 B1 EP 3067903B1 EP 13897002 A EP13897002 A EP 13897002A EP 3067903 B1 EP3067903 B1 EP 3067903B1
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EP
European Patent Office
Prior art keywords
plate
electromagnetic induction
induction apparatus
secondary winding
primary winding
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Application number
EP13897002.5A
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English (en)
French (fr)
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EP3067903A1 (de
EP3067903A4 (de
Inventor
Yuta URYU
Yoshiyuki DEGUCHI
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of EP3067903A4 publication Critical patent/EP3067903A4/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F37/00—Fixed inductances not covered by group H01F17/00
    • 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
    • H01F27/08—Cooling; Ventilating
    • 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
    • H01F27/2804—Printed windings
    • 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
    • H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/303—Clamping coils, windings or parts thereof together
    • 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
    • H01F27/2804—Printed windings
    • H01F2027/2814—Printed windings with only part of the coil or of the winding in the printed circuit board, e.g. the remaining coil or winding sections can be made of wires or sheets
    • 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
    • H01F27/2823—Wires
    • 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
    • H01F27/2847—Sheets; Strips

Definitions

  • the present invention relates to an electromagnetic induction apparatus to be incorporated into, for example, a power converter.
  • electromagnetic induction apparatus such as a transformer, a reactor, and a choke coil are mounted as passive components for voltage step-up operation and voltage step-down operation, and are used as energy storing and emitting devices, DC current smoothening devices, or the like.
  • a transformer excellent to achieve downsizing there is known a transformer including primary windings and secondary windings in a laminate structure, in which the secondary windings are separately wound at least at two positions in an axial direction of a bobbin surrounding a core through intermediation of an insulating member, to thereby realize downsizing (see, for example, Patent Literature 1).
  • a reactor including a reactor main body housed inside an aluminum case.
  • the reactor main body is sealed with a filler resin having a thermal conductivity of from 0.7 [W/m/K] to 4.0 [W/m/K] so that heat generated from a coil can be efficiently radiated to the case and a cooler.
  • a bobbin-less structure is provided so that heat generated from a core can also be efficiently radiated (see, for example, Patent Literature 2).
  • Patent Literature 3 discloses a method for producing electronic components having a plurality of electrically conductive windings.
  • Patent Literature 4 to 10 relate to further prior art.
  • the transformer of Patent Literature 1 can increase the degree of coupling between the windings by winding the primary windings and the second windings in a laminated manner.
  • the downsizing is enabled by winding the second windings separately at the two or more positions in the axial direction of the bobbin.
  • the windings are wound in a multilayer structure. Therefore, for an inner winding in the vicinity of the core, there is a problem in that the heat radiating property degrades by an additional thermal resistance of an insulator that is present between the windings on an outer side of the inner winding.
  • Patent Literature 2 has a problem in that costs and size are inevitably increased when the reactor main body is housed inside the metal case that is filled with the heat radiating resin.
  • the present invention has been made to solve the problems described above, and has an object to provide an electromagnetic induction apparatus in small size at low costs, which enables efficient heat radiation from a coil body to reduce a thermal resistance.
  • an electromagnetic induction apparatus as defined in claim 1.
  • the coil portions each including the wiring pattern on the printed wiring board and the metal member having the both end portions connected to the wiring pattern, are electrically connected to each other and arranged side by side to form the coil body. Therefore, for example, by mounting cooling means onto the printed wiring board, heat can be efficiently radiated from the coil body to enable reduction of the thermal resistance.
  • the metal members are connected to the wiring patterns of the printed wiring board so as to be separated away from each other, for each of the metal members. Therefore, a heat radiating property for each of the metal members is also high.
  • FIG. 1 is a perspective view of a reactor according to a first embodiment of the present invention
  • FIG. 2 is a top view for illustrating wiring patterns 8 on a metal-based printed wiring board 6 illustrated in FIG. 1 .
  • the illustration of a plurality of electronic components mounted on the metal-based printed wiring board 6 is omitted.
  • the reactor which is an electromagnetic induction apparatus, includes a core 3 that is a shell-type PQ core including a first core portion 1 and a second core portion 2, a plurality of plate-like metal members 4 each having a C-like shape and arranged so as to surround a middle leg portion of the core 3, insulating members 5 configured to insulate the plate-like metal members 4 from each other and the plate-like metal members 4 and the core 3 from each other, and the metal-based printed wiring board 6 having an upper surface on which a plurality of the wiring patterns 8 are provided.
  • a core 3 that is a shell-type PQ core including a first core portion 1 and a second core portion 2, a plurality of plate-like metal members 4 each having a C-like shape and arranged so as to surround a middle leg portion of the core 3, insulating members 5 configured to insulate the plate-like metal members 4 from each other and the plate-like metal members 4 and the core 3 from each other, and the metal-based printed wiring board 6 having an upper surface on which
  • the reactor By placing and fixing the metal-based printed wiring board 6 onto a cooler (not shown), which is cooling means, the reactor is fixed to the cooler.
  • the plate-like metal members 4 are tough-pitch copper members having a prescribed electric resistance value.
  • the wiring patterns 8 on the metal-based printed wiring board 6 are conductors having a prescribed electric resistance value, and are coated with an insulating resist except for component lands 7 each having a rectangular shape or the like.
  • the wiring patterns 8 are electrically connected to the plate-like metal members 4 (not shown).
  • Both end surfaces of the plate-like metal members 4 are connected by soldering so as to be respectively held in contact with the corresponding component lands 7 to form coil portions each including the plate-like metal member 4 and the wiring pattern 8.
  • a defined number of the coil portions are electrically connected to each other and arranged side by side along the middle leg portion of the core 3, thereby forming a coil body.
  • a distance between each of the component lands 7 that are a lowermost portion and an uppermost portion in FIG. 2 and a bridging portion of the wiring pattern 8, which connects the adjacent component lands 7, and a distance between the adjacent component lands 7 are defined as widths that allow the insulating resist to be interposed therebetween and allow insulation to be ensured for a voltage drop in the coil portion for one turn when a predetermined voltage is applied to a reactor.
  • the core 3 has a bottom surface placed on the metal-based printed wiring board 6.
  • Each of the insulating members 5 includes a semi-donut portion interposed between the adjacent plate-like metal members 4, which is obtained by halving a donut-shaped plate, a cylindrical portion having a cylindrical shape, which surrounds the middle leg portion of the core 3, and an outer-diameter side portion interposed between an outer-diameter side of the plate-like metal members 4 and an inner wall of the core 3.
  • the metal-based printed wiring board 6 on which the coil body is arranged is mounted onto the cooler. As a result, heat is efficiently radiated from the coil body, and hence increase in electrical resistance due to temperature rise of the coil body can be suppressed.
  • the improvement of a heat radiating property allows the heat radiating area of the entire reactor to be reduced. Therefore, the core 3, the plate-like metal members 4, the metal-based printed wiring board 6, and the like constructing the reactor can be downsized and reduced in weight, and costs can also be reduced thereby.
  • cooler configured to cool the reactor can also be downsized and reduced in costs.
  • the plate-like metal members 4 are plate-like members, and hence stable dimensional accuracy can be obtained. Therefore, variation in leakage inductance can be suppressed to suppress variation in loss of the coil body.
  • an inductance is facilitated by adjusting the number of laminated coil portions, a plate width of the plate-like metal members 4 that are constituent elements of the coil body, a distance between the coil body and the core 3, and a gap between the first core portion 1 and the second core portion 2.
  • the plate-like metal members 4 are connected to the component lands 7 on the metal-based printed wiring board 6 in a one-by-one manner. As a result, the plate-like metal members 4 are arranged so as to be separated away from each other so that the plate-like metal members 4 can individually radiate heat. Therefore, the reduction in thermal resistance and the improvement of the heat radiating property are enabled.
  • the reactor main body is not required to be housed inside a metal case that is filled with a heat radiating resin to ensure a heat-radiation path unlike the reactor described in JP 2009-94328 A (Patent Literature 2). Therefore, downsizing, reduction in weight, and reduction in costs are enabled.
  • the plate-like metal members 4 are connected to the component lands 7 for each one. As a result, stable dimensional accuracy is obtained between the coil portions that are the constituent elements of the coil body. Hence, variation in the thermal resistance and electric characteristics such as the inductance and the coil-body loss can be reduced.
  • the tough-pitch copper members are used as the plate-like metal members 4.
  • an electrical conductivity close to that of pure copper is obtained to enable realization of a low electric resistance as the coil body.
  • the generation of an eddy current along with a leakage flux generated from the reactor because each of the tough-pitch copper members is a non-magnetic metal and an eddy-current loss can be reduced.
  • the heat generated from the plate-like metal members 4 can be efficiently radiated through the metal-based printed wiring board 6 and the cooler because each of the tough-pitch copper members has a thermal conductivity close to that of pure copper. Further, downsizing and reduction in weight can be realized thereby.
  • an aluminum-based material may also be used.
  • the generation of the eddy current can be suppressed because the aluminum-based material is a non-magnetic metal although the aluminum-based material is inferior to the copper-based material in heat-radiating property and electrical conductivity. Further, because of a specific gravity extremely smaller than those of the other metals, significant reduction in weight can be realized particularly when the number of turns in the coil body is large.
  • a unit price of the material is significantly lower than that of the copper-based material, and hence costs can also be reduced.
  • the bottom surface of the core 3 is placed so as to be held in contact with the metal-based printed wiring board 6.
  • lost heat (iron loss) generated in the core 3 can be radiated to the cooler through the metal-based printed wiring board 6.
  • the insulating members 5 such as resin plates or insulating sheets between the plate-like metal members 4 and between the plate-like metal members 4 and the core 3 adjacent thereto, an insulating property between the adjacent plate-like metal members 4 and between the coil body and the core 3 is ensured. As a result, stable performance as the reactor can be obtained.
  • the insulating members 5 are not required to be interposed therebetween.
  • plate-like metal members 4 are used as the constituent elements of the coil body in this embodiment, a round wire or a rectangular wire may be used in place of each of the plate-like metal members 4.
  • the metal-based printed wiring board 6 that is the constituent element of the coil body has been described in this embodiment, a ceramic-based printed wiring board may be used in place of the metal-based printed wiring board 6.
  • the heat radiating property can be improved while ensuring a high insulating property. Further, downsizing and reduction in weight can be realized thereby.
  • the core 3 has been described as the shell-type core of the PQ type in this embodiment, the present invention is also applicable to other shell-type cores such as EI type, EE type, EER type, and ER type and core-type cores such as U-type.
  • FIG. 3 is a perspective view of a transformer according to a second embodiment of the present invention
  • FIG. 4 is a top view of wiring patterns 17 and 19 on a metal-based printed wiring board 15 illustrated in FIG. 3 .
  • the illustration of a plurality of electronic components mounted on the metal-based printed wiring board 15 is omitted.
  • the transformer which is an electromagnetic induction apparatus, includes a core 11 that is a U-shaped core including a first core portion 9 and a second core portion 10, plate-like metal members 12 for primary winding and plate-like metal members 13 for secondary winding each having a C-like shape and placed so as to surround one magnetic leg of the core 11, insulating members 14 configured to insulate the plate-like metal member 12 for primary winding and the plate-like metal member 13 for secondary winding from each other and the plate-like metal members 12 and 13 and the core 11 from each other, and the metal-based printed wiring board 15 having an upper surface on which wiring patterns 17 for primary winding and wiring patterns 18 for secondary winding are provided.
  • the transformer is fixed to the cooler.
  • the plate-like metal members 12 for primary winding are tough-pitch copper members having a prescribed electric resistance value.
  • the wiring patterns 17 for primary winding on the metal-based printed wiring board 15 have a prescribed electric resistance value, and are coated with an insulating resist except for component lands 16 for primary winding, each having a rectangular shape or the like.
  • the wiring patterns 17 for primary winding are electrically connected through connecting portions (not shown).
  • Both end surfaces of the plate-like metal members 12 for primary winding are connected by soldering so as to be respectively held in contact with the component lands 16 for primary winding to form primary winding portions that are coil portions each including the plate-like metal member 12 for primary winding and the wiring pattern 17 for primary winding.
  • a defined number of the primary winding portions are electrically connected to each other and arranged side by side along one leg of the core 11, thereby forming a primary winding 20 that is a coil body.
  • the plate-like metal members 13 for secondary winding are tough-pitch copper members having a prescribed electric resistance value.
  • the wiring patterns 19 for secondary winding on the metal-based printed wiring board 15 have a prescribed electric resistance value, and are coated with an insulating resist except for component lands 18 for secondary winding, each having a rectangular shape or the like.
  • the wiring patterns 19 for secondary winding are electrically connected through connecting portions (not shown).
  • Both end surfaces of the plate-like metal members 13 for secondary winding are connected by soldering so as to be respectively held in contact with the component lands 18 for secondary winding to form secondary winding portions that are coil portions each including the metal member 13 for secondary winding and the wiring pattern 19 for secondary winding.
  • a defined number of the secondary winding portions are electrically connected to each other and arranged side by side along one leg of the core 11, thereby forming a secondary winding 21 that is a coil body.
  • the component lands 16 for primary winding of the wiring patterns 17 for primary winding and the component lands 18 for secondary winding of the wiring patterns 19 for secondary winding are shifted from each other by a distance d1 along an axial direction as illustrated in FIG. 4 .
  • the wiring patterns 17 for primary winding and the wiring patterns 19 for secondary winding are provided so as to be separated away from each other by a predetermined distance d2 as illustrated in FIG. 4 .
  • the metal-based printed wiring board 15 on which the primary winding 20 and the secondary winding 21 are arranged is mounted onto the cooler. Therefore, heat can be efficiently radiated from the primary winding 20 and the secondary winding 21. Thus, increase in thermal resistance due to temperature rise of the primary winding 20 and the secondary winding 21 can be suppressed.
  • the improvement of the heat radiating property allows the heat radiating area of the entire transformer to be reduced. Therefore, the core 11, the plate-like metal members 12 for primary winding, the plate-like metal members 13 for secondary winding, the metal-based printed wiring board 15, and the like constructing the transformer can be downsized and reduced in weight, and costs can be reduced thereby.
  • each of the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding is a plate-like member. Therefore, stable dimensional accuracy can be obtained. Thus, variation in leakage inductance can be suppressed to suppress variation in loss of the primary winding 20 and the secondary winding 21.
  • the transformer with a high degree of coupling can be realized. As a result, the leakage inductance can be suppressed.
  • an excitation inductance and the leakage inductance is facilitated by adjusting the number of laminated coil portions, a plate width of the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding, a distance between each of the primary winding 20 and the second winding 21 and the core 11, and a gap between the first core portion 9 and the second core portion 10.
  • the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding are connected onto the component lands 16 and 18 on the metal-based printed wiring board 15 in a one-by-one manner.
  • the heat is radiated individually from each of the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding. Therefore, the reduction in thermal resistance and the improvement of the heat radiating property are enabled.
  • the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding are connected to the component lands 16 and 18 for each one.
  • the stable dimensional accuracy of the distance can be obtained between the primary winding 20 and the secondary winding 21.
  • variation in the thermal resistance and the electric characteristics such as the excitation inductance, the leakage inductance, and the loss can be reduced.
  • the tough-pitch copper members are used as the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding.
  • an electric conductivity close to that of pure copper is obtained to enable the realization of a low electric resistance as the primary winding 20 and the secondary winding 21.
  • the generation of an eddy current along with a leakage flux generated from the transformer because each of the tough-pitch copper members is a non-magnetic metal and an eddy-current loss can be reduced.
  • the heat generated from the plate-like metal members 12 for primary winding and the plate-like metal members 13 for secondary winding can be efficiently radiated through the metal-based printed wiring board 15 and the cooler because each of the tough-pitch copper members has a thermal conductivity close to that of pure copper. Further, downsizing and reduction in weight can be realized thereby.
  • the insulating members 14 such as resin plates or insulating sheets between the plate-like metal member 12 and the plate-like metal member 13 and between the plate-like metal members 12 and 13 and the core 11 adjacent thereto, an insulating property between the primary winding 20 and the secondary winding 21, between the plate-like metal members 12 and 13, and between each of the primary winding 20 and the second winding 21 and the core 11 is ensured. As a result, stable performance as the transformer can be obtained.
  • the plate-like metal members 12 that are the constituent elements of the primary winding 20 and the plate-like metal members 13 that are the constituent elements of the secondary winding 21 may also be molded with a resin to ensure the insulating property.
  • a distance that allows the insulation between the wiring patterns 17 for primary winding and the wiring patterns 19 for secondary winding is provided.
  • the insulating property between the primary winding 20 and the secondary winding 21 is ensured to provide the stable performance as the transformer.
  • the copper-based material is used for both the plate-like metal members 12 and 13 in this embodiment, an aluminum-based material may also be used as in the first embodiment.
  • metal-based printed wiring board 15 has been described as the printed wiring board in this embodiment, a ceramic-based printed wiring board may be used as in the second embodiment.
  • step-up transformer in which the number of turns in the secondary winding 21 is larger than that of the primary winding 20 has been described in this embodiment, the present invention is also applicable to a step-down transformer in which the number of turns in the primary winding is larger than that of the secondary winding.
  • core 11 has been described as the core-type core of the U-type in this embodiment, the present invention is also applicable to shell-type cores such as EI type, EE type, EER type, and ER type.
  • FIG. 5A is a diagram for schematically illustrating an example of arrangement of primary winding portions 20a and secondary winding portions 21a of a transformer
  • FIG. 5B is a diagram for schematically illustrating the arrangement of the primary winding portions 20a and the secondary winding portions 21a of a transformer according to a third embodiment of the present invention.
  • the secondary winding portions 21a are arranged so that up to two thereof are adjacent to each other. As a result, increase in the leakage inductance of the transformer is suppressed. Further, the degree of coupling is high while the loss can be suppressed.
  • the remaining configuration is the same as that of the transformer of the second embodiment.
  • cooler in which refrigerant flows into the interior of the pipe has been described as an example of cooling means for cooling the electromagnetic induction apparatus, a heat sink may also be used instead.
  • first core portion 1 first core portion, 2 second core portion, 3, 11 core, 4 plate-like metal member (metal member), 5, 14 insulating member, 6, 15 metal-based printed wiring board, 7 component land, 8 wiring pattern, 9 first core portion, 10 second core portion, 12 plate-like metal member for primary winding (metal member), 13 plate-like metal member for secondary winding (metal member), 16 component land for primary winding, 17 wiring pattern for primary winding, 18 component land for secondary winding, 19 wiring pattern for secondary winding (wiring pattern), 20 primary winding (coil body), 20a primary winding portion (coil portion), 21 secondary winding (coil body), 21a secondary winding portion (coil portion)

Claims (17)

  1. Elektromagnetische Induktionsvorrichtung, die aufweist:
    einen Kern (3, 11), der einen geschlossenen magnetischen Pfad bildet;
    eine Leiterplatte (6, 15), die eine Vielzahl von Verdrahtungsstrukturen (8) aufweist; und
    ein Metallelement, das um den Kern (3, 11) bereitgestellt ist und dessen beide Endabschnitte mit der Vielzahl von Verdrahtungsstrukturen verbunden sind, wobei:
    die Verdrahtungsstrukturen mit einer Vielzahl von Bauelementkontaktflächen (7) versehen sind, die jeweils eine rechteckige Form haben,
    beide Endflächen der Metallelemente (4) verbunden sind, um jeweils in Kontakt mit den entsprechenden Bauelementkontaktflächen (7) gehalten zu werden, und
    eine Vielzahl von Spulenabschnitten einschließlich der Vielzahl von Verdrahtungsstrukturen (8) und der Metallelemente (4) elektrisch miteinander verbunden und nebeneinander angeordnet sind, um einen Spulenkörper zu bilden;
    dadurch gekennzeichnet, dass das Metallelement plattenartige Metallelemente (4) aufweist, die jeweils eine C-Form haben.
  2. Elektromagnetische Induktionsvorrichtung nach Anspruch 1, die ferner Isolierelemente (5, 14) aufweist, die zwischen den nebeneinanderliegenden plattenartigen Metallelementen (4) und zwischen den plattenartigen Metallelementen (4) und dem Kern (3, 11) angeordnet sind.
  3. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 oder 2, wobei das plattenartige Metallelement durch Löten mit der Leiterplatte verbunden ist.
  4. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 3, wobei das plattenartige Metallelement aus Kupfer hergestellt ist.
  5. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 3, wobei das plattenartige Metallelement aus Aluminium hergestellt ist.
  6. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Leiterplatte eine auf Metall basierende Leiterplatte (6, 15) aufweist.
  7. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 5, wobei die Leiterplatte eine auf Keramik basierende Leiterplatte aufweist.
  8. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 7, wobei der Kern (3, 11) in Oberflächenkontakt mit der Leiterplatte gehalten wird.
  9. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 8, wobei:
    die elektromagnetische Induktionsvorrichtung einen Transformator aufweist; und
    der Spulenkörper aufweist:
    eine Primärwicklung (20) mit Primärwicklungsabschnitten (20a), die der Vielzahl von Spulenabschnitten entsprechen; und
    eine Sekundärwicklung (21) mit Sekundärwicklungsabschnitten (21a), die der Vielzahl von Spulenabschnitten entsprechen.
  10. Elektromagnetische Induktionsvorrichtung nach Anspruch 9, wobei die Primärwicklungsabschnitte (20a) und die Sekundärwicklungsabschnitte (21a) abwechselnd nebeneinander angeordnet sind.
  11. Elektromagnetische Induktionsvorrichtung nach Anspruch 9, wobei die Primärwicklungsabschnitte (20a) und die Sekundärwicklungsabschnitte (21a) jeweils so angeordnet sind, dass bis zu zwei der Primärwicklungsabschnitte (20a) oder der Sekundärwicklungsabschnitte (21a) nebeneinander liegen.
  12. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 9 bis 11, die ferner aufweist:
    eine Bauelementkontaktfläche (16) für die Primärwicklung an jeder der Vielzahl von Verdrahtungsstrukturen (8), mit der ein plattenartiges Metallelement (12) für die Primärwicklung, das ein Bestandteil jedes der Primärwicklungsabschnitte (20a) ist, verbunden ist; und
    eine Bauelementkontaktfläche (18) für die Sekundärwicklung an jeder der Vielzahl von Verdrahtungsstrukturen (8), mit der ein plattenartiges Metallelement (13) für die Sekundärwicklung, das ein Bestandteil jedes der Sekundärwicklungsabschnitte (21a) ist, verbunden ist,
    wobei die Bauelementkontaktfläche (18) für die Sekundärwicklung neben der Bauelementkontaktfläche (16) für die Primärwicklung liegt,
    die Bauelementkontaktfläche (16) für die Primärwicklung und die Bauelementkontaktfläche (18) für die Sekundärwicklung durch einen dazwischen liegenden Isolationsabstand voneinander getrennt sind.
  13. Elektromagnetische Induktionsvorrichtung nach Anspruch 12, die ferner Isolierelemente aufweist, die zwischen dem plattenartigen Metallelement (12) für die Primärwicklung und dem plattenartigen Metallelement (13) für die Sekundärwicklung, zwischen dem plattenartigen Metallelement (12) für die Primärwicklung und dem Kern (3, 11) und zwischen dem plattenartigen Metallelement (13) für die Sekundärwicklung und dem Kern (3, 11) angeordnet sind.
  14. Elektromagnetische Induktionsvorrichtung nach Anspruch 13, wobei die isolierenden Elemente Harzplatten aufweisen.
  15. Elektromagnetische Induktionsvorrichtung nach Anspruch 13, wobei die isolierenden Elemente Harzfolien aufweisen.
  16. Elektromagnetische Induktionsvorrichtung nach Anspruch 13, wobei das plattenartige Metallelement (12) für die Primärwicklung und das plattenartige Metallelement (13) für die Sekundärwicklung mit einem Harz vergossen sind.
  17. Elektromagnetische Induktionsvorrichtung nach einem der Ansprüche 1 bis 16, wobei eine Kühleinrichtung zum Kühlen der elektromagnetischen Induktionsvorrichtung auf der Leiterplatte montiert ist.
EP13897002.5A 2013-11-08 2013-11-08 Elektromagnetische induktionsvorrichtung Active EP3067903B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/080261 WO2015068265A1 (ja) 2013-11-08 2013-11-08 電磁誘導機器

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JP6150844B2 (ja) * 2015-05-21 2017-06-21 三菱電機株式会社 電磁誘導機器
KR102317743B1 (ko) * 2015-07-21 2021-10-27 삼성전자 주식회사 전자기 유도 소자, 이를 구비한 전원공급장치 및 디스플레이장치
JP6635306B2 (ja) 2016-09-21 2020-01-22 株式会社オートネットワーク技術研究所 リアクトル、及びリアクトル用磁性コア
JP2018117012A (ja) * 2017-01-17 2018-07-26 株式会社オートネットワーク技術研究所 多段コイルおよび回路構成体
TWI687945B (zh) * 2018-05-31 2020-03-11 振華電腦有限公司 具有改良繞組結構的變壓器
JP6593834B1 (ja) * 2018-06-28 2019-10-23 三菱電機株式会社 コモンモードチョークコイル
WO2020003565A1 (ja) 2018-06-28 2020-01-02 三菱電機株式会社 コモンモードチョークコイル
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JP6195627B2 (ja) 2017-09-13
EP3067903A1 (de) 2016-09-14
JPWO2015068265A1 (ja) 2017-03-09
EP3067903A4 (de) 2017-07-12
CN105706196A (zh) 2016-06-22
CN105706196B (zh) 2018-04-10
WO2015068265A1 (ja) 2015-05-14

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