WO2016185712A1 - リアクトル - Google Patents
リアクトル Download PDFInfo
- Publication number
- WO2016185712A1 WO2016185712A1 PCT/JP2016/002404 JP2016002404W WO2016185712A1 WO 2016185712 A1 WO2016185712 A1 WO 2016185712A1 JP 2016002404 W JP2016002404 W JP 2016002404W WO 2016185712 A1 WO2016185712 A1 WO 2016185712A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coil
- metal structure
- core
- reactor
- side wall
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 55
- 239000002184 metal Substances 0.000 claims abstract description 55
- 239000000945 filler Substances 0.000 claims abstract description 27
- 239000011347 resin Substances 0.000 claims description 18
- 229920005989 resin Polymers 0.000 claims description 18
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000004512 die casting Methods 0.000 claims description 2
- 239000011162 core material Substances 0.000 description 44
- 230000017525 heat dissipation Effects 0.000 description 12
- 239000012212 insulator Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000002905 metal composite material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- -1 FeAlSi Inorganic materials 0.000 description 1
- 229910002555 FeNi Inorganic materials 0.000 description 1
- 229910005347 FeSi Inorganic materials 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000031070 response to heat Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- 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
- H01F27/022—Encapsulation
-
- 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
- H01F27/24—Magnetic cores
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Definitions
- This disclosure relates to a reactor that is a passive element using inductance.
- a reactor generally has a configuration in which a coil is wound around a core, and is mainly used for an electric circuit through which a large current flows. A loss occurs in the reactor core and coil, and this loss becomes thermal energy. The greater the current that flows through the reactor, the greater the loss that is generated, and the more the reactor generates heat.
- a reactor having a case made of a bottom plate portion made of metal and a side wall portion independent of the bottom plate portion is known.
- the side wall of the reactor is made of resin or at least part of metal.
- the bottom plate portion functions as a coil heat dissipation path (see Patent Document 1).
- Reactors whose case is made of aluminum with high thermal conductivity are also known.
- This reactor has a core part which accommodated the core material inside the resin member.
- the core part has a filler outflow prevention part.
- the resin member that accommodates the core material and the filler outflow prevention portion are integrally configured.
- the filler outflow prevention part has a function of extending the height of the side surface of the case (see Patent Document 2).
- a reactor is known in which a bottom plate portion and a side wall portion of a case are independent from each other, and a bottom plate portion and a side wall portion are made of an insulating resin. Utilizing the fact that this reactor is an insulating resin, the terminal of the coil is held by the case (see Patent Document 3).
- a reactor having a box-shaped case having a bottom surface and side walls made of metal is known.
- This reactor has a notch in a part of the end portion on the side away from the bottom surface of the side wall, and an insulating wall portion is attached to the notch. The end of the coil is inserted through the insulating wall portion (see Patent Document 4).
- the reactor includes a coil body, an exterior case, and a filler.
- the coil body has a core and a coil wound around the core.
- the exterior case has a metal structure and a resinous frame.
- the metal structure has a bottom surface and side walls standing from the bottom surface. The bottom surface and the side wall of the metal structure are integrally formed.
- the frame is installed on the opposite side of the bottom surface of the metal structure.
- the exterior case stores a core and a coil.
- the filler is filled between the outer case and the coil body.
- FIG. 1 is an overall perspective view of a reactor according to an embodiment.
- FIG. 2 is an exploded perspective view of the reactor in the embodiment.
- FIG. 3 is an exploded perspective view of the coil body of the reactor in the embodiment.
- FIG. 4 is an exploded perspective view of the bobbin and core of the reactor in the embodiment.
- reactors are used in the drive circuits of these motors.
- driving characteristics such as acceleration performance
- reactors are also expected to support large currents.
- the reactor's response to large currents is also a response to heat generation.
- the bottom plate portion and the side wall portion are configured independently. Therefore, the thermal conductivity between the bottom plate part and the side wall part is low. Therefore, the heat transmitted to the side wall portion is difficult to move to the bottom plate portion, which is a heat dissipation path, and efficient heat dissipation is difficult.
- the resin member that houses the core material and the filler outflow prevention portion are integrally formed. Due to this structure, a part of the core material is not covered with the filler. Therefore, heat from a part of the core material is not efficiently transmitted from the resin member to the case, and the heat dissipation characteristics of the reactor are deteriorated.
- the bottom plate portion of the case has a configuration independent of the side wall portion. And both the baseplate part and the side wall part are made from insulating resin. Therefore, heat dissipation is inferior.
- Patent Document 4 The reactor described in Patent Document 4 is inferior in assembly work efficiency because the end of the coil is inserted through the insulating wall.
- FIG. 1 is an overall perspective view of a reactor 10 according to an embodiment.
- FIG. 2 is an exploded perspective view of reactor 10 in the embodiment.
- FIG. 3 is an exploded perspective view of coil body 80 of reactor 10 in the embodiment.
- FIG. 4 is an exploded perspective view of the bobbin 50 and the core 40 of the reactor 10 according to the embodiment.
- the display of the coil body 80 is omitted.
- the display of the filler 70 is omitted.
- the reactor 10 includes a coil body 80, an exterior case 11, and a filler 70.
- the coil body 80 includes a core 40 and a coil 60 wound around the core 40.
- the outer case 11 includes a metal structure 30 and a resinous frame 20.
- the metal structure 30 has a bottom surface 31 and a side wall 32 standing from the bottom surface 31.
- the bottom surface 31 and the side wall 32 of the metal structure 30 are integrally formed.
- the frame body 20 is installed on the opposite side of the bottom surface 31 of the metal structure 30.
- the outer case 11 houses the core 40 and the coil 60.
- the filler 70 is filled between the outer case 11 and the coil body 80.
- the reactor 10 may have a bobbin 50.
- the configuration of the reactor 10 will be described in detail.
- the outer case 11 has a frame 20 and a metal structure 30.
- the frame 20 is made of resin.
- the metal structure 30 is made of metal.
- the metal structure 30 is preferably formed of a material having high thermal conductivity such as aluminum or copper.
- the metal structure 30 has a bottom surface 31 and a side wall 32.
- the side wall 32 is erected from the bottom surface 31.
- the side wall 32 has four wall surfaces.
- the bottom surface 31 is not limited to a substantially rectangular shape, but may be a polygon, a circle, or an ellipse other than a rectangle.
- the bottom surface 31 and the side wall 32 are integrally formed.
- that the bottom surface 31 and the side wall 32 are integrally formed means that the bottom surface 31 and the side wall 32 are not formed independently of each other but are inseparably formed.
- the metal structure 30 is formed by, for example, a die casting method.
- the frame 20 has a side wall 21, a terminal portion 22, and an upper surface 23.
- the side wall 21 of the frame 20 is positioned on the extension of the side wall 32 of the metal structure 30, and the terminal portion 22 is positioned so as to protrude outward from the side wall 32 of the metal structure 30.
- the upper surface 23 is a plane including the upper end of the terminal portion 22 of the frame body 20.
- An opening 24 is formed in the frame body 20.
- a stopper 25 and a stopper 26 may be formed on the upper surface 23 of the frame 20. The stopper 25 and the stopper 26 prevent the core 40 and the coil 60 from passing through the opening 24.
- the filler 70 is filled in the outer case 11.
- the filler 70 is filled between the outer case 11 and the coil body 80.
- the filler 70 is preferably an insulator. Even if the coil 60 itself is coated and insulated, the filler 70 is preferably an insulator for further improvement of reliability.
- the filler 70 is filled between the core 40 and the coil 60 and the outer case 11 without a gap.
- a resin is used as an example of the filler 70. It is preferable that the heat generated from the core 40 and the coil 60 is efficiently transmitted to the outer case 11, particularly the metal structure 30 by the filler 70. Therefore, it is preferable to use the filler 70 having high thermal conductivity.
- a filler 70 a material in which at least one of silicon resin, epoxy resin, acrylic resin, and liquid crystal polymer is mixed with at least one of alumina, aluminum nitride, boron nitride, and carbon having excellent thermal conductivity. Can be used.
- a filler 70 containing a magnetic material may be used.
- a resin containing magnetic powder such as FeAlSi or ferrite can be used.
- the surface of the insulator is preferably covered with an insulator.
- the filling material 70 is made of silicon resin mixed with alumina.
- the core 40 is a magnetic metal composite.
- a Fe-based magnetic metal powder for example, a composite of Fe, FeSi, FeAlSi, FeNi, or amorphous magnetic powder, and an insulator is pressed into a predetermined shape, or poured into a predetermined shape. Is formed.
- the core 40 is produced by heat-treating at a high temperature of 600 ° C. or higher.
- the core 40 of the present embodiment has gaps 41 to 46 in order to improve DC superimposition. The number of gaps and the position of the gaps are determined according to the characteristics required for the reactor 10. Further, depending on the characteristics required for the reactor 10, a gap is not necessary.
- the core 40 has, for example, a “square” shape in a top view.
- the bobbin 50 is configured to cover a part of the core 40. Specifically, the coil 60 covers the core 40 when the coil 60 is wound around the bobbin 50. That is, the coil 60 is not wound directly around the core 40 but is wound through the bobbin 50. In other words, the coil 60 is indirectly wound around the core 40.
- the bobbin 50 is an insulator and is made of an ABS resin or an engineering plastic resin obtained by blending glass with nylon resin. The bobbin 50 enhances the insulation between the core 40 and the coil 60. As a result, the reliability of the reactor 10 is increased.
- the bobbin 50 also has a function of holding the core 40 and the coil 60 and fixing them to the outer case 11.
- the coil 60 has a configuration in which a single conductor is wound.
- the coil 60 has a portion wound around the central axis 60a and a portion wound around the central axis 60b.
- the coil 60 should have a low DC resistance. Therefore, as the material of the coil 60, for example, copper is suitable.
- Various conductors are used as conductors constituting the coil 60. In the present embodiment, a rectangular copper wire is used as the conductor of the coil 60.
- the coil 60 is formed by so-called edgewise winding. However, the present invention is not limited to these.
- the first tip of the coil 60 and the terminal 61 are crimped to the connection component 63.
- the first tip portion of the coil 60 and the terminal 61 are physically and electrically connected by the connection component 63.
- the first tip of the coil 60 is electrically connected to the terminal 61.
- a second tip portion of the coil 60 and the terminal 62 are crimped to the connection component 64. That is, the second tip of the coil 60 and the terminal 62 are physically and electrically connected by the connection component 64.
- the second tip of the coil 60 is electrically connected to the terminal 62.
- the terminals 61 and 62 are fixed to the frame body 20.
- the connection parts 63 and 64 are located in the exterior case 11 in a top view. That is, the connection part between the coil 60 and the terminals 61 and 62 is located in the outer case 11 in a top view.
- the terminal 61 and the terminal 62 are attached to the frame 20 by insert molding.
- the bobbin 50 may be configured to be split.
- the coil 60 may be wound around the bobbin 50 in a state where the bobbin 50 is divided into two, and then the two bobbins 50 may be integrated.
- the core 40 may also be configured so that it can be divided.
- the core 40 may be attached to the bobbin 50 in a divided state and then integrated.
- the heat radiation of the reactor 10 is performed by transferring heat to the outer case 11 and radiating heat from the outer case 11.
- the heat radiation performance per unit area on the bottom surface 31 and the side wall 32 of the metal structure 30 varies depending on the shape, arrangement, fixing method, relationship with other members other than the reactor 10, and the like of the bottom surface 31 and the side wall 32 of the metal structure 30. To do. A place with excellent heat dissipation characteristics has a lower temperature rise than other places if the other conditions are the same. Therefore, heat from other places is easily received. Since the bottom surface 31 and the side wall 32 of the metal structure 30 are integrally formed, the thermal resistance between the bottom surface 31 and the side wall 32 is small, and the thermal conductivity is excellent.
- Reactor 10 of the present embodiment has good heat transfer in metal structure 30. Therefore, for example, it is very useful when a part of the metal structure 30 (for example, the bottom surface 31) is brought into contact with the cooling pipe to radiate heat from the reactor 10.
- both the central axis 60a and the central axis 60b of the coil 60 intersect with the side wall 32 of the metal structure 30. That is, the metal structure 30 houses at least a part of the coil body 80. Thereby, most of the heat generated from the core 40 and the heat generated from the coil 60 can be transmitted to the side wall 32 and the bottom surface 31 of the metal structure 30. As a result, the heat dissipation characteristics of the reactor 10 are improved. If the entire core 40 is configured to fit in the space surrounded by the side wall 32 and the bottom surface 31 of the metal structure 30, more heat generated from the core 40 is generated on the side wall 32 and the bottom surface 31 of the metal structure 30.
- the core 40 is preferably surrounded by the side wall 32 of the metal structure 30. It is more preferable that the core 40 and the coil 60 be configured to fit in the space surrounded by the side wall 32 and the bottom surface 31 of the metal structure 30 because the heat dissipation characteristics can be further improved. That is, the coil body 80 is preferably surrounded by the side wall 32 of the metal structure 30.
- the reactor 10 of the present disclosure includes the core 40, the coil 60 wound around the core 40, and the outer case 11 that houses the core 40 and at least a part of the coil 60. Further, the filler 70 may be filled between the outer case 11 and the coil body 80.
- the exterior case 11 has a frame body 20 made of resin and a metal structure 30 made of metal.
- the metal structure 30 has a bottom surface 31 and side walls 32 standing from the bottom surface 31, and the bottom surface 31 and the side walls 32 of the metal structure 30 are integrally formed. With this configuration, the heat dissipation characteristics are improved. Further, since the frame body 20 is made of resin, it is not necessary to take a creepage distance for withstand voltage more than necessary, and the degree of freedom in design is high.
- the central axis of the coil 60 of the reactor 10 of the present disclosure intersects the side wall 32 of the metal structure 30. With this configuration, most of the heat generated in the coil 60 and the core 40 can be radiated from the metal structure 30.
- the reactor 10 of the present disclosure further includes terminals 61 and 62 that are connected to the coil 60, and the terminals 61 and 62 are fixed to the frame body 20. Since the reactor 10 has a function of fixing the terminals 61 and 62 to the frame body 20, an increase in the number of parts can be suppressed and the reactor 10 can be manufactured at low cost.
- connection portion between the coil 60 and the terminals 61 and 62 is located in the outer case 11 in a top view. Since the connecting portion is in the outer case 11 when viewed from above, the area of the reactor 10 as a whole is reduced. Moreover, since the frame 20 is formed of resin, it is not necessary to take a creepage distance for withstand voltage more than necessary, and the reactor 10 can be made small.
- the frame 20 has an opening 24, and stoppers 25 and 26 that prevent the core 40 and the coil 60 from passing through the opening 24 are formed on the upper surface of the frame 20. Yes. With this configuration, the core 40 and the coil 60 can be reliably stored in the outer case 11.
- the heat dissipation characteristics are improved by the reactor 10 of the present disclosure.
- the reactor of the present disclosure is useful as a passive element using inductance.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Of Transformers For General Uses (AREA)
- Insulating Of Coils (AREA)
Abstract
Description
本開示のリアクトル10について、以下、説明する。図1は、実施の形態におけるリアクトル10の全体斜視図である。図2は、実施の形態におけるリアクトル10の分解斜視図である。図3は、実施の形態におけるリアクトル10のコイル体80の分解斜視図である。図4は、実施の形態におけるリアクトル10のボビン50とコア40の分解斜視図である。なお、図1において、コイル体80の表示を省略している。図2において、充填材70の表示を省略している。
11 外装ケース
20 枠体
21 側壁
22 端子部
23 上面
24 開口部
25 ストッパ
26 ストッパ
30 金属構造体
31 底面
32 側壁
40 コア
41 ギャップ
42 ギャップ
43 ギャップ
44 ギャップ
45 ギャップ
46 ギャップ
50 ボビン
60 コイル
60a 中心軸
60b 中心軸
61 端子
62 端子
63 接続部品
64 接続部品
70 充填材
80 コイル体
Claims (10)
- コアと、
前記コアに巻回されたコイルと、
を有するコイル体と、
底面と、前記底面から立設する側壁と、を有する金属構造体と、
前記金属構造体の前記底面の反対側に設置された、樹脂性の枠体と、
を有する、
外装ケースと、
前記外装ケースと前記コイル体との間に充填された充填材と、
を備え、
前記金属構造体の前記底面と前記側壁とは一体的に形成されており、
前記外装ケースは、前記コアと、前記コイルとを収納している
リアクトル。 - 前記金属構造体の前記底面と前記側壁とは、ダイカスト法により成形されている
請求項1記載のリアクトル。 - 前記コイルの中心軸は、前記金属構造体の前記側壁と交差している
請求項1記載のリアクトル。 - 前記金属構造体は、前記コイル体の少なくとも一部を収納している
請求項1記載のリアクトル。 - 前記コアは、前記金属構造体の前記側壁に囲まれている
請求項1記載のリアクトル。 - 前記コイル体は、前記金属構造体の前記側壁に囲まれている
請求項1記載のリアクトル。 - 前記コイルと接続する端子をさらに備え、
前記端子は前記枠体に固定される
請求項1記載のリアクトル。 - 前記コイルと前記端子との接続部は、上面視にて前記外装ケース内に位置している
請求項7に記載のリアクトル。 - 前記枠体は開口部と、
前記開口部から前記コアおよび前記コイルが通過することを防止するストッパと、
を有する、
請求項1記載のリアクトル。 - 前記充填材は、アルミナが混合されたシリコン樹脂である
請求項1記載のリアクトル。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017518764A JP6596676B2 (ja) | 2015-05-19 | 2016-05-17 | リアクトル |
US15/570,520 US10607763B2 (en) | 2015-05-19 | 2016-05-17 | Reactor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015101477 | 2015-05-19 | ||
JP2015-101477 | 2015-05-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016185712A1 true WO2016185712A1 (ja) | 2016-11-24 |
Family
ID=57319760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/002404 WO2016185712A1 (ja) | 2015-05-19 | 2016-05-17 | リアクトル |
Country Status (3)
Country | Link |
---|---|
US (1) | US10607763B2 (ja) |
JP (1) | JP6596676B2 (ja) |
WO (1) | WO2016185712A1 (ja) |
Cited By (5)
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---|---|---|---|---|
JP2019080021A (ja) * | 2017-10-27 | 2019-05-23 | 株式会社タムラ製作所 | リアクトル |
JP2019121665A (ja) * | 2017-12-28 | 2019-07-22 | 株式会社タムラ製作所 | リアクトル |
JP2020013884A (ja) * | 2018-07-18 | 2020-01-23 | 株式会社タムラ製作所 | リアクトル |
US20210065944A1 (en) * | 2018-03-01 | 2021-03-04 | Siemens Aktiengesellschaft | Core for a transformer |
JP2021125480A (ja) * | 2020-01-31 | 2021-08-30 | 株式会社タムラ製作所 | リアクトル |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2019208250A1 (ja) | 2018-04-25 | 2019-10-31 | パナソニックIpマネジメント株式会社 | 電源装置 |
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JP2019080021A (ja) * | 2017-10-27 | 2019-05-23 | 株式会社タムラ製作所 | リアクトル |
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JP2019121665A (ja) * | 2017-12-28 | 2019-07-22 | 株式会社タムラ製作所 | リアクトル |
JP7133311B2 (ja) | 2017-12-28 | 2022-09-08 | 株式会社タムラ製作所 | リアクトル |
US20210065944A1 (en) * | 2018-03-01 | 2021-03-04 | Siemens Aktiengesellschaft | Core for a transformer |
JP2020013884A (ja) * | 2018-07-18 | 2020-01-23 | 株式会社タムラ製作所 | リアクトル |
JP7117925B2 (ja) | 2018-07-18 | 2022-08-15 | 株式会社タムラ製作所 | リアクトル |
JP2021125480A (ja) * | 2020-01-31 | 2021-08-30 | 株式会社タムラ製作所 | リアクトル |
JP7490375B2 (ja) | 2020-01-31 | 2024-05-27 | 株式会社タムラ製作所 | リアクトル |
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US20180174733A1 (en) | 2018-06-21 |
JPWO2016185712A1 (ja) | 2018-03-08 |
US10607763B2 (en) | 2020-03-31 |
JP6596676B2 (ja) | 2019-10-30 |
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