WO2018135357A1 - Bobine à étages multiples et structure de circuit - Google Patents

Bobine à étages multiples et structure de circuit Download PDF

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Publication number
WO2018135357A1
WO2018135357A1 PCT/JP2018/000395 JP2018000395W WO2018135357A1 WO 2018135357 A1 WO2018135357 A1 WO 2018135357A1 JP 2018000395 W JP2018000395 W JP 2018000395W WO 2018135357 A1 WO2018135357 A1 WO 2018135357A1
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WO
WIPO (PCT)
Prior art keywords
coil
winding
coils
axial direction
core
Prior art date
Application number
PCT/JP2018/000395
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English (en)
Japanese (ja)
Inventor
北　幸功
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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.)
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Application filed by 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2018135357A1 publication Critical patent/WO2018135357A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • 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
    • 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

Definitions

  • the technology disclosed in the present specification relates to a multistage coil and a circuit configuration body to which the multistage coil is connected.
  • the technology disclosed in the present specification has been completed based on the above situation, and aims to reduce the size of the circuit structure.
  • the technology disclosed in the present specification includes at least two or more coils each having a winding part formed by winding a winding, and a connection part extending from the winding part, and the winding
  • a plurality of magnetic cores including: a shaft portion disposed along an axial direction of the winding portion at a center in a radial direction of the winding portion; and a wall portion extending along the radial direction of the winding portion.
  • the coils are arranged along the axial direction, and the magnetic core is between a pair of end cores arranged at both ends in the axial direction of the plurality of coils and the plurality of adjacent coils. It is the multistage coil provided with the intermediate core arranged one by one.
  • a plurality of coils conventionally connected individually to the circuit board can be collectively handled as one multistage coil. That is, the number of parts can be reduced.
  • the magnetic core of one coil and the magnetic core of the other coil are arranged between adjacent coils. Since it can be set as the form which shares the magnetic core of an adjacent coil, the arrangement
  • positioning area of a coil can be made small compared with the case where a several separate coil is arranged. That is, the circuit structure to which the coil is connected can be reduced in size.
  • the multi-stage coil may have the following configuration.
  • the multi-stage coil may be housed in a coil case, and the coil case may be filled with a potting material.
  • Such a configuration eliminates air vibration due to magnetostriction and makes it difficult to generate abnormal noise. Further, rattling of the multistage coil in the coil case is suppressed. Further, since it is not necessary to separately provide a holding structure for holding the multistage coil in an assembled state, the configuration can be simplified and the size can be reduced.
  • the connecting portion may extend in the extending direction from the winding portion and bend in the intersecting direction intersecting the extending direction. According to such a configuration, when the intersecting direction is set in the same direction as the axial direction of the winding portion, the axial direction of the winding portion is in a vertically placed state parallel to the plate surface of the circuit board, Multistage coils can be placed on the circuit board.
  • the connecting part may be bent from the winding part and bent into a crank shape.
  • the multi-stage coil can be disposed between the pair of circuit boards in a horizontal state in which the axial direction of the winding portion is perpendicular to the plate surface of the circuit board. That is, the distance between the pair of circuit boards can be reduced as compared with the conventional one.
  • the technology disclosed in the present specification includes a winding portion formed by winding a winding, and a connection portion extended from the winding portion, and is along the axial direction of the winding portion.
  • a plurality of coils arranged side by side, a shaft portion arranged along the axial direction of the winding portion at the radial center of the winding portion, and along the radial direction of the winding portion
  • a pair of end cores disposed at both ends in the axial direction of the plurality of coils, and an intermediate core disposed one by one between the plurality of adjacent coils
  • a multi-stage coil including a magnetic core including the circuit core is connected to the conductive circuit of the circuit board.
  • the circuit structure can be reduced in size.
  • the perspective view of the coil assembly of Embodiment 1 Exploded perspective view of coil assembly Exploded perspective view of choke coil Exploded bottom view of choke coil Plan view of the intermediate core Bottom view of choke coil Top view of choke coil Choke coil front view Choke coil side view Bottom view of coil assembly without potting material Top view of coil assembly Front view of coil assembly
  • Conceptual diagram of a circuit assembly with a coil assembly mounted The perspective view of the coil assembly of Embodiment 2.
  • Plan view of a two-stage choke coil of another embodiment Plan view of a two-stage choke coil of another embodiment
  • a coil assembly 10 (an example of a multistage coil) according to the first embodiment accommodates a two-stage choke coil 11 (an example of a multistage coil) in a coil case 30 as shown in FIGS. 30 is filled with a potting material 36.
  • the two-stage choke coil 11 has a magnetic core 12 and two coils 20.
  • the magnetic core 12 of the present embodiment is between a pair of first cores 12A (an example of an end core) and a second core 12B (an example of an end core) that are called the so-called PQ-type cores.
  • the intermediate core 12C is combined.
  • the first core 12 ⁇ / b> A and the second core 12 ⁇ / b> B include a slightly thick flat plate-like wall portion 13, a columnar shaft portion 14 protruding from the center of one surface side of the wall portion 13 to one side, and one wall portion 13. And a pair of plate-like leg portions 15 projecting in the same direction as the shaft portion 14 from a pair of side edges facing each other.
  • the pair of side edges where the leg portions 15 are not provided are cut out in a substantially triangular shape from the vicinity of both end portions toward the shaft portion 14.
  • a substantially ribbon shape see FIG. 8
  • the wall portion 13 is not limited to a ribbon shape, and other shapes such as a rectangle may be used.
  • the intermediate core 12C is disposed between the first core 12A and the second core 12B, and has the same shape and the same size as the wall portion 13 of the first core 12A and the second core 12B and has an equivalent thickness. From the wall portion 13C, the columnar intermediate shaft portion 14C protruding from the center of both surfaces of the intermediate wall portion 13C toward the first core 12A and the second core 12B, and a pair of side edges facing the intermediate wall portion 13C A plate-like intermediate leg portion 15C protruding toward the first core 12A and the second core 12B.
  • the intermediate core 12C abuts the shaft portions 14 and 14C and the leg portions 15 and 15C with the first core 12A and the second core 12B aligned with the wall portion 13 (intermediate wall portion 13C). Are superimposed. In this state, a space is formed between the first core 12A and the intermediate core 12C, and between the intermediate core 12C and the second core 12B, and a coil 20 described later is arranged in this space. (See FIGS. 6 and 7).
  • the coil 20 used in this embodiment is an edgewise coil formed by winding a rectangular wire in an edgewise shape and in an annular shape. As shown in FIG. 3, one coil 20 is wound to form both ends of a rectangular wire (referred to as connecting portions 22 ⁇ / b> A and 22 ⁇ / b> B) from both ends in the axial direction L of the winding portion 21 that is wound and forms a cylindrical shape as a whole.
  • connecting portions 22 ⁇ / b> A and 22 ⁇ / b> B are extended in the same direction (extending direction X) orthogonal to the axial direction L and in parallel with each other, and L along the axial direction L (intersecting direction Y intersecting the extending direction X). It is shaped like a letter.
  • connection end 23 The leading end side of the flat wire is a connection end 23 connected to the conductive circuit.
  • the pair of connection portions 22 ⁇ / b> A and 22 ⁇ / b> B of one coil 20 extends from different heights in the axial direction L of the winding portion 21.
  • the pair of connection portions 22 ⁇ / b> A and 22 ⁇ / b> B of one coil 20 is set to a dimension such that the tips (connection end portions 23) thereof have the same height in the axial direction L of the winding portion 21.
  • Each of the pair of connection portions 22A and 22B (connection end portion 23) is formed with a connection hole 26 so as to be connected to the conductive circuit by bolt fastening.
  • the two coils 20 are arranged one by one in the space between the first core 12A and the intermediate core 12C and between the intermediate core 12C and the second core 12B. That is, the winding portion 21 of the first coil 20A is arranged around the shaft portions 14 and 14C of the first core 12A and the intermediate core 12C, and the winding portion 21 of the first coil 20A is the intermediate core. 12C and the second core 12B are arranged around the shaft portions 14C and 14 (see FIG. 8).
  • the winding direction of the rectangular wire of the first coil 20A on the upper side and the second coil 20B on the lower side is the same direction. Further, both ends of the flat wire of the first coil 20A are bent so that the connecting portions 22A and 22B extend upward, and both ends of the flat wire of the second coil 20B are connected to the connecting portions 22A and 22B. It is bent so as to extend downward. That is, the first coil 20A and the second coil 20B are arranged so that the winding direction of the flat wire is the same, while the connecting portions 22A and 22B face the opposite side.
  • leg portions 15 and 15C of the magnetic core 12 described above have an inner surface that follows the side edge of the coil 20. That is, as shown in FIG. 5 and FIG. 8, the lower side in the figure is a shape along the extending direction of both ends of the flat wire, and the upper side is a shape along the winding part 21.
  • Such a magnetic core 12A, 12B, 12C and the two coils 20A, 20B form a two-stage choke coil 11 (see FIGS. 6 to 9).
  • the two-stage choke coil 11 is accommodated in the coil case 30.
  • the coil case 30 is made of a synthetic resin material, and as shown in FIG. More specifically, the coil case 30 includes a pair of first side walls 32 along the outer surface of the wall portion 13 of the two-stage choke coil 11 and a pair of second side walls along the outer surface of the leg portion 15 of the two-stage choke coil 11. 33 and the bottom wall 34 of the two-stage choke coil 11 along the surface opposite to the surface from which the connecting portions 22A and 22B are extended. Among the edges of the opening 31 of the coil case 30, ribs 35 project outward from the edge on the second side wall 33 side.
  • the side edges on the rear side are notched obliquely toward the inside in the vicinity of the center along the side edges of the wall 13 of the two-stage choke coil 11 ( (See FIG. 12). Further, the region of the bottom wall 34 corresponding to the first coil 20A and the second coil 20B of the two-stage choke coil 11 swells in a cross-section arc shape toward the rear side along the outer periphery of the winding portion 21.
  • the protruding bulging portion 34A is used (see FIGS. 11 and 12).
  • a positioning protrusion (not shown) for positioning the magnetic core 12 of the two-stage choke coil 11 inserted in the coil case 30 and the first coil 20A and the second coil 20B.
  • the portion is provided so as to protrude forward. That is, the magnetic core 12, the first coil 20A, and the second coil 20B are held at the proper assembly position in a state where the two-stage choke coil 11 is accommodated in the coil case 30 by the positioning protrusion. ing.
  • the two-stage choke coil 11 includes a pair of connection portions 22 ⁇ / b> A and 22 ⁇ / b> B (four in total) of each coil 20 in the coil case 30 so as to protrude toward the outside of the opening 31. Is housed in. In this state, the outer surface of the magnetic core 12 is in contact with a plurality of contact ribs (not shown) provided inside the coil case 30, and there is a slight gap between the outer surface of the magnetic core 12 and the inner surface of the coil case 30. A gap is formed (see FIG. 10). A gap is also formed between the magnetic core 12 and the coil 20. These gaps are filled with a potting material 36, and the coil assembly 10 is integrated as a whole. In addition, as the potting material 36, an epoxy resin etc. can be used, for example.
  • the coil assembly 10 described above is arranged at a predetermined position on the circuit board 41 and is conductively connected to the conductive circuit. Details will be described later.
  • the two-stage choke coil 11 in an assembled state is inserted into the coil case 30 with the two pairs of connection portions 22 ⁇ / b> A and 22 ⁇ / b> B protruding from the opening 31.
  • the outer surface of the two-stage choke coil 11 is inserted into the back while being in contact with a contact rib (not shown) provided inside the coil case 30 and positioned by a positioning projection (not shown).
  • the coil case 30 When the two-stage choke coil 11 is inserted into the normal position of the coil case 30 and positioned, the coil case 30 is placed so that the opening 31 of the coil case 30 faces upward, and the potting material 36 is filled from the opening 31.
  • the potting material 36 is filled in a gap between the two-stage choke coil 11 and the coil case 30 and a gap between the magnetic core 12 and the coil 20 and gradually hardens. Thereby, the coil assembly 10 in which the two-stage choke coil 11 is fixed in the coil case 30 is completed (see FIG. 1).
  • both ends of the rectangular wire of the coil 20 are extended outward (in the same direction) from the opening 31 of the coil case 30, and the connection portions 22A and 22B of the first coil 20A and the second coil 20B are connected.
  • the portions 22A and 22B are bent toward the opposite side. Further, the extended portion from the coil case 30 at the end of the coil 20 is firmly fixed by the potting material 36 so that the proximal end side does not move.
  • Such a coil assembly 10 is connected to the circuit board 41.
  • the circuit board 41 has a plurality of bus bars 43 (an example of a conductive circuit) arranged on the back side of an insulating board on which a printed circuit (not shown) is printed on the front side.
  • a plurality of connection holes 42 for connecting the connection portions 22 ⁇ / b> A and 22 ⁇ / b> B of the coil assembly 10 disposed on the front surface side to the bus bar 43 are provided at predetermined positions of the circuit board 41.
  • connection portions 22 ⁇ / b> A and 22 ⁇ / b> B are extended faces in the direction facing the circuit board 41, i.e., the axial direction L of the winding portion 21 is parallel to the plate surface of the circuit board 41.
  • the circuit board 41 is arranged at a predetermined position, and the connection holes 26 of the connection portions 22A and 22B (connection end portions 23) are overlapped with the connection holes 44 of the bus bar 43 exposed from the connection holes 42 of the circuit board 41. Then, the bolt 45 and the nut 46 are fastened (screwed) to connect to the bus bar 43 (conductive circuit) on the back side of the circuit board 41.
  • a plurality of coils (coils 20A and 20B of the present embodiment) that have been individually connected to the circuit board 41 are collectively formed as one coil assembly 10. It can be handled. That is, the number of parts can be reduced.
  • the magnetic core of one coil and the magnetic core of the other coil are arranged between adjacent coils.
  • the magnetic core 12 (the first core 12A and the second core 12B) disposed between the adjacent coils 20A and 20B can be used as one intermediate core 12C. Therefore, the configuration is simplified as compared with the configuration in which two coils are arranged, and the coil assembly 10 can be downsized. As a result, the circuit structure 40 to which the coil assembly 10 is connected can be reduced in size.
  • the two-stage choke coil 11 is accommodated in the coil case 30 and the potting material 36 is filled in the coil case 30, vibration of air due to magnetostriction is eliminated, and noise is hardly generated. Further, rattling of the two-stage choke coil 11 in the coil case 30 is suppressed. Further, since it is not necessary to separately provide a holding structure for holding the two-stage choke coil 11 in the assembled state, the configuration is simplified, and the coil assembly 10 and thus the circuit structure 40 can be downsized.
  • connection portions 22A, 22B of the coils 20A, 20B are extended from the winding portion 21 in the extending direction X, and the direction along the axial direction L of the winding portion 21 (intersection intersecting with the extending direction X). Since the structure is bent in the direction Y), the coil assembly 10 can be disposed on the circuit board 41 in a vertically placed state in which the axial direction L of the winding portion 21 is parallel to the plate surface of the circuit board 41. .
  • the coil assembly 50 of the present embodiment is different from the first embodiment in the form of a pair of connection portions 62A and 62B extending from the winding portion 61.
  • the connecting portions 62A and 62B are extended from both ends in the axial direction L of the winding portion 61 having a cylindrical shape as a whole in the same direction (extending direction X) and straight and parallel to each other. .
  • a connecting hole 66 is formed through each of the tips of the connecting portions 62A and 62B so as to be connected to the conductive circuit by bolt fastening.
  • the coil assembly 50 of the present embodiment is different from the first embodiment in that the coil case 70 is provided with an elastic fixing piece 76 for attaching to a coil base (not shown) provided on the circuit board side. Yes.
  • the elastic fixing piece 76 has a plate shape and is integrally provided on each of the pair of second side walls 73 of the coil case 70.
  • the elastic fixing piece 76 is erected vertically from the second side wall 73 toward the outside so that the plate surface thereof is parallel to the pair of first side walls 72.
  • Each elastic fixing piece 76 is formed with a through hole 77 for attaching to a fixing hole of a coil base (not shown).
  • both end portions on the base end side of the elastic fixing piece 76 are integrally connected to a pair of reinforcing walls 78 extending up and down on the second side wall 73.
  • the pair of elastic fixing pieces 76 can be slightly elastically deformed with respect to the coil case 70.
  • the coil assembly 50 is connected to the conductive circuit in a state where the connecting portions 62A and 62B are parallel to the circuit board.
  • a coil assembly 80 according to the third embodiment will be described with reference to FIG. In the following description, only the configuration different from that of the first embodiment will be described, and the same configuration as that of the first embodiment will be denoted by the reference numeral obtained by adding 70 to the reference numeral of the first embodiment, and redundant description will be omitted.
  • the coil assembly 80 of the present embodiment is different from the first embodiment in the form of the end portion of the flat wire that extends from the coil 90.
  • a pair of end portions (connecting portions 92A, 92B) of the flat wire are directed in the same direction (extending direction X) perpendicular to the axial direction L from both ends in the axial direction L of the winding portion 91 having a cylindrical shape as a whole. And extending in parallel with each other and bent into a crank shape in the same direction.
  • a pair of ends (connecting portions 92A and 92B) of the flat wire are directed from the winding portion 91 to the right side (extending direction X) in the drawing.
  • An extended portion 93 that extends in an extended manner, a stepped portion 94 that extends downward (intersection direction Y intersecting the extending direction X and axial direction L of the winding portion 91), and a stepped portion 94.
  • a connecting end portion 95 extending rightward (extending direction X).
  • the height of the pair of connection end portions 95 of one coil 90 is set to be flush with each other.
  • Each of the pair of connection end portions 95 is formed with a connection hole 96 so as to be connected to the conductive circuit by bolt fastening.
  • the coil assembly 80 is electrically conductive in a horizontal state in which the connection end portion 95 is parallel to the circuit board, in other words, the axial direction L of the winding portion 91 is perpendicular to the plate surface of the circuit board. Connected to the circuit.
  • the pair of connection portions 92A and 92B (connection end portions 95) of the upper first coil 90A in the drawing are along the plate surface of the circuit board disposed on the upper side. It is connected to a bus bar 123A (conductive circuit).
  • connection portions 92A and 92B (connection end portion 95) of the second coil 90B on the lower side in the drawing are connected to a bus bar 123B (conductive circuit) along the plate surface of the circuit board disposed on the lower side.
  • the coil assembly 80 is disposed between a pair of circuit boards and is connected to the bus bars 123A and 123B (conductive circuit) of the respective circuit boards.
  • connection end 95 of the first coil 90A and the connection end 95 of the second coil 90B are arranged so as to face each other, and an insulating mounting base 130 is provided between these facing surfaces. ing.
  • a nut 126 is embedded in the mounting base 130 at a position corresponding to the connection hole 96 of the coil 90 and the connection hole 124 of the bus bar 123, and the connection hole 96 and the connection hole 124 are passed through the nut 126.
  • FIG. 18 shows a state in which two coil assemblies having a conventional configuration are arranged side by side, but the one in FIG. 15 showing the connection state of this embodiment is a bus bar compared to the conventional one.
  • the distance between 123A and 123B (between conductive circuits) can be reduced.
  • the two-stage choke coil is housed in the coil case and the coil assembly is filled with the potting material.
  • the coil case and the potting material may be omitted.
  • the choke coil may be integrally fixed and held by a synthetic resin material, or an adhesive or other holding member may be used.
  • the configuration is limited to the above embodiment as long as the magnetic core and the coil are fixed. It is not a thing.
  • the form of the coil case is not limited to the above embodiment, and can be appropriately changed, for example, the bottom wall 34 has a flat plate shape.
  • the winding direction of the flat wire of the two coils is the same direction, but the winding direction may be opposite.
  • connection portion of the two coils extends in the same direction from the winding portion
  • the connecting portion may be extended in different directions.
  • FIG. 16 it is good also as a structure by which the connection parts 142A and 142B of the two coils 140 are extended to the opposite side.
  • the extension direction of a pair of connection part 22A, 22B of the one coil 20 is the same direction (extension direction X of embodiment) orthogonal to the axial direction L of the winding part 21.
  • the connection portions 152 ⁇ / b> A and 152 ⁇ / b> B of the coil 150 extend in different directions orthogonal to the axial direction L, that is, cross each other in plan view. It may be a form.
  • a pair of connection part of one coil is extended toward the same direction (extension direction X) orthogonal to the axial direction L of a winding part, and a direction along the axial direction L
  • extension direction X extension direction orthogonal to the axial direction L of a winding part
  • the coil is not limited to the edgewise coil, and other types of coils may be used.
  • the coil and the conductive circuit are electrically connected by bolt fastening.
  • the present invention is not limited to this, and may be connected by, for example, soldering.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

L'invention concerne une bobine à étages multiples qui comprend: une pluralité de bobines ayant une partie d'enroulement sur laquelle un fil d'enroulement est enroulé, et une partie de connexion qui s'étend à partir de la partie d'enroulement, attendu qu'il y a au moins deux bobines; et un noyau magnétique ayant une partie d'arbre disposée le long de la direction axiale de la partie d'enroulement dans le centre radial de la partie d'enroulement, et une partie de paroi s'étendant le long de la direction radiale de la partie d'enroulement. La pluralité de bobines est disposée selon un agencement de rangée le long de la direction axiale, et le noyau magnétique comprend: une paire de noyaux de partie d'extrémité disposés sur les deux parties d'extrémité de direction axiale de la pluralité de bobines; et un noyau central, un tel noyau central étant disposé entre chacune de la pluralité de bobines voisines.
PCT/JP2018/000395 2017-01-17 2018-01-11 Bobine à étages multiples et structure de circuit WO2018135357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017005913A JP2018117012A (ja) 2017-01-17 2017-01-17 多段コイルおよび回路構成体
JP2017-005913 2017-01-17

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WO2018135357A1 true WO2018135357A1 (fr) 2018-07-26

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200194159A1 (en) * 2017-05-23 2020-06-18 Autonetworks Technologies, Ltd. Coil device, coil device with circuit board, and electrical junction box
US11610716B2 (en) 2019-04-01 2023-03-21 Delta Electronics (Shanghai) Co., Ltd Transformer
US11610717B2 (en) * 2019-04-01 2023-03-21 Delta Electronics (Shanghai) Co., Ltd Potting box and transformer
US11610729B2 (en) 2019-04-01 2023-03-21 Delta Electronics (Shanghai) Co., Ltd Transformer and assembling method thereof

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN110994978A (zh) * 2020-01-09 2020-04-10 山东交通职业学院 一种高压脉冲装置

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JP2000124047A (ja) * 1998-10-13 2000-04-28 Matsushita Electric Ind Co Ltd チョークコイル
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WO2005119709A1 (fr) * 2004-06-04 2005-12-15 Sumida Corporation Bobine d'inductance
EP1933341A2 (fr) * 2006-12-11 2008-06-18 Vacuumschmelze GmbH & Co. KG Composant SMD inductif
JP2012043872A (ja) * 2010-08-17 2012-03-01 Panasonic Corp 電子部品およびその製造方法
JP2013093921A (ja) * 2011-10-24 2013-05-16 Toyota Central R&D Labs Inc ２相コンバータ用リアクトル及び２相コンバータ
WO2015005129A1 (fr) * 2013-07-08 2015-01-15 株式会社村田製作所 Composant à bobines
WO2015068265A1 (fr) * 2013-11-08 2015-05-14 三菱電機株式会社 Appareil à induction électromagnétique
WO2016002326A1 (fr) * 2014-07-04 2016-01-07 株式会社オートネットワーク技術研究所 Ensemble bobine, structure de montage pour ensemble bobine et boîte de raccordement électrique

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08306553A (ja) * 1995-04-28 1996-11-22 Fujitsu Ten Ltd 電子部品
JP2000124047A (ja) * 1998-10-13 2000-04-28 Matsushita Electric Ind Co Ltd チョークコイル
JP2005166905A (ja) * 2003-12-02 2005-06-23 Sagami Ereku Kk 複合型インダクタ
WO2005119709A1 (fr) * 2004-06-04 2005-12-15 Sumida Corporation Bobine d'inductance
EP1933341A2 (fr) * 2006-12-11 2008-06-18 Vacuumschmelze GmbH & Co. KG Composant SMD inductif
JP2012043872A (ja) * 2010-08-17 2012-03-01 Panasonic Corp 電子部品およびその製造方法
JP2013093921A (ja) * 2011-10-24 2013-05-16 Toyota Central R&D Labs Inc ２相コンバータ用リアクトル及び２相コンバータ
WO2015005129A1 (fr) * 2013-07-08 2015-01-15 株式会社村田製作所 Composant à bobines
WO2015068265A1 (fr) * 2013-11-08 2015-05-14 三菱電機株式会社 Appareil à induction électromagnétique
WO2016002326A1 (fr) * 2014-07-04 2016-01-07 株式会社オートネットワーク技術研究所 Ensemble bobine, structure de montage pour ensemble bobine et boîte de raccordement électrique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200194159A1 (en) * 2017-05-23 2020-06-18 Autonetworks Technologies, Ltd. Coil device, coil device with circuit board, and electrical junction box
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US11610717B2 (en) * 2019-04-01 2023-03-21 Delta Electronics (Shanghai) Co., Ltd Potting box and transformer
US11610729B2 (en) 2019-04-01 2023-03-21 Delta Electronics (Shanghai) Co., Ltd Transformer and assembling method thereof

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