JP2019220556A - Magnetic component and electronic apparatus - Google Patents

Magnetic component and electronic apparatus Download PDF

Info

Publication number
JP2019220556A
JP2019220556A JP2018116248A JP2018116248A JP2019220556A JP 2019220556 A JP2019220556 A JP 2019220556A JP 2018116248 A JP2018116248 A JP 2018116248A JP 2018116248 A JP2018116248 A JP 2018116248A JP 2019220556 A JP2019220556 A JP 2019220556A
Authority
JP
Japan
Prior art keywords
core
width direction
magnetic component
coil
cores
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2018116248A
Other languages
Japanese (ja)
Inventor
哲 笹木
Satoru Sasaki
哲 笹木
知善 小林
Tomoyoshi Kobayashi
知善 小林
正人 笠島
Masato Kasashima
正人 笠島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Omron Corp
Original Assignee
Omron Corp
Omron Tateisi Electronics Co
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.)
Filing date
Publication date
Application filed by Omron Corp, Omron Tateisi Electronics Co filed Critical Omron Corp
Priority to JP2018116248A priority Critical patent/JP2019220556A/en
Priority to PCT/JP2019/023430 priority patent/WO2019244760A1/en
Publication of JP2019220556A publication Critical patent/JP2019220556A/en
Pending legal-status Critical Current

Links

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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
  • Housings And Mounting Of Transformers (AREA)

Abstract

To fix cores in a stable state and prevent an increase in size of a magnetic component.SOLUTION: A magnetic component 3 included in an electronic apparatus comprises: a coil 4; cores 5a, 5b; and a beam-like spring member 6 that presses the cores 5a, 5b against a housing 1 supporting the cores 5a, 5b to fix the cores. The cores 5a, 5b have columnar parts 5L, 5r that are provided perpendicular to a contact surface with the housing 1. The coil 4 does not project from the cores 5a, 5b with respect to a longitudinal width direction X of the cores 5a, 5b perpendicular to a height direction of the columnar parts 5L, 5r, and partially projects from the cores 5a, 5b with respect to a short-side width direction Y of the cores 5a, 5b perpendicular to the height direction and the longitudinal width direction X. The spring member 6 has a fixed part 6a fixed to the housing 1 and a pressing part 6b pressing the columnar parts 5L, 5r against the housing 1, and the fixed part 6a is arranged in the vicinity of the cores 5a, 5b and the coil 4 in a direction V perpendicular to the height direction and oblique to the width directions X, Y.SELECTED DRAWING: Figure 3

Description

本発明は、磁性体から成るコアを備えた磁気部品と、当該磁気部品を備えた電子装置に関し、特にコアを固定する構造に関する。   The present invention relates to a magnetic component having a core made of a magnetic material and an electronic device having the magnetic component, and more particularly to a structure for fixing the core.

たとえばＤＣ−ＤＣコンバータのような電子装置には、チョークコイルやトランスなどの磁気部品が備わっている。この磁気部品は、通電されることにより磁束を発生するコイルと、その磁束の磁路を形成する磁性体から成るコアとを有している。   For example, an electronic device such as a DC-DC converter includes magnetic components such as a choke coil and a transformer. The magnetic component has a coil that generates a magnetic flux when energized, and a core made of a magnetic material that forms a magnetic path of the magnetic flux.

コイルは、金属製の線材や板材、あるいはプリント基板に印刷により形成された配線パターンなどから構成され、電子装置の基板や電気配線などに電気的に接続される。コアは、フェライトなどの磁性材料で形成され、コイルの大部分を覆うように設けられる。また、コアは、電子装置の筐体などの支持部材により支持され、かつ該支持部材に固定される。   The coil is composed of a metal wire or plate, or a wiring pattern formed by printing on a printed board, and is electrically connected to a board or an electric wiring of an electronic device. The core is formed of a magnetic material such as ferrite and is provided so as to cover most of the coil. The core is supported by a supporting member such as a housing of the electronic device, and is fixed to the supporting member.

コイルへの通電時に、コイルやコアは発熱する。特に、大電流が流れるチョークコイルやトランスなどに備わるコイルやコアの発熱量は多くなる。その熱でコアの温度が限界温度を超えると、コアが磁性体として機能しなくなり、熱暴走と呼ばれる状態に陥って、磁気部品の性能が損なわれてしまう。   When power is supplied to the coil, the coil and the core generate heat. In particular, the amount of heat generated by coils and cores provided in choke coils and transformers through which a large current flows increases. If the temperature of the core exceeds the limit temperature due to the heat, the core will not function as a magnetic material, and will fall into a state called thermal runaway, and the performance of the magnetic component will be impaired.

また、たとえば車載用の電子装置では、外部から大きな振動や衝撃が磁気部品にかかる。その振動や衝撃でコアが位置ずれしたり外れたりすると、コアが磁性体として機能しなくなり、磁気部品の性能が損なわれてしまう。   For example, in a vehicle-mounted electronic device, a large vibration or impact is applied to the magnetic component from the outside. If the core is displaced or detached due to the vibration or impact, the core does not function as a magnetic body, and the performance of the magnetic component is impaired.

そこで、熱対策や振動・衝撃対策として、たとえば特許文献１では、コアと、コイルパターンが形成された基板とを、下方から放熱体から成る支持部材（筐体）で支持し、上方から片持ち梁状のばね部材（板ばね）でコアや基板を支持部材に押し付けて、これらを固定している。詳しくは、支持部材上におけるコアの側方に台座を複数立設し、そのうち高さの低い台座で基板を支持している。また、高さの高い台座上にばね部材の一端部を固定し、該板ばねの他端部で上方からコアの柱部や基板を支持部材や高さの低い台座に押し付けている。   Therefore, as a measure against heat and measures against vibration and shock, for example, in Patent Document 1, a core and a substrate on which a coil pattern is formed are supported from below by a support member (housing) formed of a heat radiator, and cantilevered from above. The core and the substrate are pressed against the support member by a beam-shaped spring member (leaf spring), and these are fixed. Specifically, a plurality of pedestals are erected on the side of the core on the support member, and the pedestal having a low height supports the substrate. In addition, one end of the spring member is fixed on a pedestal having a high height, and the other end of the leaf spring presses a column portion or a substrate of the core against a supporting member or a pedestal having a low height from above.

また、特許文献２では、両端支持梁状のばね性を有する固定金具（板ばね）により、各コアを上下１対のコアの突合せ面に介在された分離板に押し付けて、これらを固定している。詳しくは、上下方向から見て、各コアの長手幅方向に各コアを跨ぐように、上下２つの固定金具を設けている。そして、各固定金具の中央の湾曲部を上下方向から各コアに接触させ、固定金具の両端部を分離板に形成された貫通孔を貫通させて、貫通孔の縁に係合することにより、固定金具でコアの中央部を分離板に押し付けている。   Further, in Patent Document 2, each core is pressed against a separation plate interposed between abutment surfaces of a pair of upper and lower cores by a fixing bracket (leaf spring) having both ends supporting beam-like spring properties, and these are fixed. I have. More specifically, two upper and lower fixing brackets are provided so as to straddle each core in the longitudinal width direction of each core when viewed from above and below. Then, the center curved portion of each fixture is brought into contact with each core from above and below, and both ends of the fixture are made to penetrate through holes formed in the separation plate, and are engaged with the edges of the through holes. The central part of the core is pressed against the separation plate by the fixing bracket.

一方、特許文献３や特許文献４には、コイルやコイルが巻回された鉄心を、上方または下方からコイルばねにより支持する制振構造が開示されている。   On the other hand, Patent Literature 3 and Patent Literature 4 disclose a vibration damping structure in which a coil and an iron core around which the coil is wound are supported by a coil spring from above or below.

特開２０１４−９０５２３号公報JP 2014-90523 A 特開平６−１３２１４６号公報JP-A-6-132146 特開平２−２７３９０８号公報JP-A-2-273908 特開２０１７−１０３３４８号公報JP 2017-103348 A

一般に、コアには、中実の柱部以外に、コイルの巻線を挿通させる挿通部（孔や凹部など）や、直流重畳特性を高めるためのセンターギャップのような空洞が設けられている。このため、コアを支持部材に固定するためのばね部材の押圧方向に空洞が存在していると、コアが押圧力により歪んだり割れたりするおそれがある。   Generally, in addition to a solid pillar portion, an insertion portion (a hole or a concave portion) through which a coil winding is inserted, and a cavity such as a center gap for improving DC superimposition characteristics are provided in the core. Therefore, if a cavity exists in the pressing direction of the spring member for fixing the core to the support member, the core may be distorted or cracked by the pressing force.

また、たとえば特許文献１のように、コアの側方に突出したコイルの突出部に対して、コアと反対側に台座を立設し、該台座上にばね部材の一端部を固定して、ばね部材の他端部でコアを支持部材に押し付ける場合、ばね部材の懸架方向、すなわちコアとコイルの突出部と台座とが並ぶ方向に、磁気部品が大型化してしまう。また、たとえば特許文献２のように、コアの長手幅方向にばね部材を懸架させて、コアの長手幅方向の側方でばね部材を固定する場合、該長手幅方向に磁気部品が大型化してしまう。そして、このように磁気部品が大型化すると、電子装置における磁気部品の占有スペースが大きくなり、磁気部品や他の部品の配置が難しくなったり、電子装置が大型化したりしてしまう。   Further, as in Patent Document 1, for example, a pedestal is erected on the side opposite to the core with respect to the projecting portion of the coil projecting to the side of the core, and one end of a spring member is fixed on the pedestal. When the core is pressed against the support member at the other end of the spring member, the size of the magnetic component increases in the direction in which the spring member is suspended, that is, in the direction in which the core, the projecting portion of the coil, and the pedestal are arranged. Further, when a spring member is suspended in the longitudinal width direction of the core and the spring member is fixed on the side in the longitudinal width direction of the core as in Patent Document 2, for example, the magnetic component becomes large in the longitudinal width direction. I will. When the size of the magnetic component increases, the space occupied by the magnetic component in the electronic device increases, so that the arrangement of the magnetic component and other components becomes difficult, and the size of the electronic device increases.

本発明は、コアを安定な状態で固定し、かつ磁気部品の大型化を抑制することを課題とする。   An object of the present invention is to fix a core in a stable state and suppress an increase in the size of a magnetic component.

本発明の磁気部品は、通電されることにより磁束を発生するコイルと、その磁束の磁路を形成する磁性体から成るコアと、コアを支持する支持部材に対して、コアを押し付けて固定する梁状のばね部材とを備えている。コアは、支持部材との接触面に対して垂直に設けられた柱部を有している。コイルは、柱部の高さ方向に対して垂直なコアの第１幅方向に対して、コアから突出せず、柱部の高さ方向と第１幅方向とに対して垂直なコアの第２幅方向に対して、コアから一部突出している。ばね部材は、支持部材に固定される固定部と、柱部に接触して、柱部を支持部材に押し付ける押圧部とを有している。固定部は、柱部の高さ方向に対して垂直でかつコアの第１幅方向と第２幅方向とに対して斜めとなる方向における、コアとコイルの近傍に配置されている。   The magnetic component of the present invention presses and fixes the core against a coil that generates a magnetic flux when energized, a core made of a magnetic material that forms a magnetic path of the magnetic flux, and a support member that supports the core. A beam-shaped spring member. The core has a pillar provided perpendicular to the contact surface with the support member. The coil does not protrude from the core with respect to the first width direction of the core perpendicular to the height direction of the pillar, and the coil does not project from the core in a direction perpendicular to the height direction of the pillar and the first width direction. Partially protrudes from the core in the two width directions. The spring member has a fixing portion fixed to the support member, and a pressing portion that contacts the column portion and presses the column portion against the support member. The fixing portion is arranged near the core and the coil in a direction perpendicular to the height direction of the pillar portion and oblique to the first width direction and the second width direction of the core.

また、本発明の電子装置は、上記磁気部品と上記支持部材とを備えている。   Further, an electronic device of the present invention includes the magnetic component and the support member.

このような磁気部品および電子装置によると、コアの柱部を梁状のばね部材の押圧部で支持部材に押し付けて、コアを支持部材に固定している。このため、ばね部材の押圧力によりコアが歪んだり割れたりせず、コアを支持部材に安定な状態で固定することができる。また、コイルがコアから突出しない第１幅方向とコイルの一部がコアから突出する第２幅方向とに対して斜めとなる方向におけるコアとコイルの近傍に、ばね部材の固定部を配置している。このため、磁気部品がコアの第１幅方向と第２幅方向に大型化するのを抑制することができる。そして、電子装置において、磁気部品の占有スペースを小さくすることができ、磁気部品や他の部品の配置が難しくなったり、電子装置が大型化したりすることも抑制することが可能となる。   According to such a magnetic component and the electronic device, the column of the core is pressed against the support member by the pressing portion of the beam-shaped spring member, and the core is fixed to the support member. Therefore, the core is not distorted or cracked by the pressing force of the spring member, and the core can be fixed to the support member in a stable state. Further, a fixing portion of the spring member is disposed near the core and the coil in a direction oblique to a first width direction in which the coil does not protrude from the core and a second width direction in which a part of the coil protrudes from the core. ing. For this reason, it is possible to suppress the magnetic component from increasing in size in the first width direction and the second width direction of the core. Further, in the electronic device, the space occupied by the magnetic components can be reduced, and it is possible to suppress the arrangement of the magnetic components and other components from becoming difficult and the electronic device from increasing in size.

本発明では、ばね部材の固定部は、支持部材における固定部と対応する位置に設けられた台座上に固定されていてもよい。   In the present invention, the fixing portion of the spring member may be fixed on a pedestal provided at a position corresponding to the fixing portion of the support member.

また、本発明において、コアは、柱部の高さ方向から見て矩形状に形成され、コアの第１幅方向の幅は、第２幅方向の幅より大きく、柱部は、第１幅方向の両端部でかつコイルの巻線が巻回された巻回部の外側に複数設けられ、ばね部材は、片持ち梁状の板ばねから成り、柱部に対応して複数設けられ、各ばね部材の固定部は、コイルの巻線部のコアからの突出部と第１幅方向に並び、かつ各柱部と第２幅方向に並ぶように配置されてもよい。   Further, in the present invention, the core is formed in a rectangular shape as viewed from the height direction of the pillar portion, the width of the core in the first width direction is larger than the width in the second width direction, and the pillar portion has the first width. A plurality of spring members are provided at both ends in the direction and outside the winding portion around which the coil winding is wound, and a plurality of spring members are provided corresponding to the pillar portions, each comprising a cantilever plate spring. The fixing portion of the spring member may be arranged so as to be aligned with the projecting portion of the winding portion of the coil from the core in the first width direction and to be aligned with each pillar portion in the second width direction.

また、本発明において、コアの柱部の高さ方向から見て、ばね部材の固定部におけるコアと反対側の端面または台座のコアと反対側の端面から、第１幅方向と平行な第１中心線での最大距離は、コイルの巻線部のコアからの突出部の端面から第１中心線までの最大距離に対して同じかまたは短くてもよい。   Further, in the present invention, when viewed from the height direction of the pillar portion of the core, the first parallel to the first width direction is formed from the end surface of the fixing portion of the spring member opposite to the core or the end surface of the pedestal opposite to the core. The maximum distance at the center line may be the same as or shorter than the maximum distance from the end face of the protrusion of the coil of the coil from the core to the first center line.

また、本発明において、コアの柱部の高さ方向から見て、ばね部材の固定部におけるコイルと反対側の端面または台座のコイルと反対側の端面から、第２幅方向と平行な第２中心線までの最大距離は、第１幅方向の端面から第２中心線までの最大距離に対して同じかまたは短くてもよい。   Further, in the present invention, when viewed from the height direction of the pillar portion of the core, a second parallel to the second width direction is formed from an end surface of the fixing portion of the spring member opposite to the coil or an end surface of the pedestal opposite to the coil. The maximum distance to the center line may be the same as or shorter than the maximum distance from the end face in the first width direction to the second center line.

また、本発明において、柱部は、コアの第１幅方向の両端部に１つずつ設けられ、ばね部材は、コアの中心に対して点対称に２つ設けられてもよい。   Further, in the present invention, one pillar portion may be provided at each end portion of the core in the first width direction, and two spring members may be provided point-symmetrically with respect to the center of the core.

さらに、本発明において、各ばね部材は、コアの柱部の高さ方向から見て、固定部が固定された位置から第２幅方向に延びて、第１幅方向と平行な第１中心線を越えた位置で、各柱部に押圧部が接触しており、押圧部の各押圧位置は、コアの中心に対して点対称に配置されていてもよい。   Further, in the present invention, each spring member extends in the second width direction from a position where the fixing portion is fixed, as viewed from the height direction of the pillar portion of the core, and has a first center line parallel to the first width direction. The pressing portion is in contact with each pillar at a position beyond the position, and each pressing position of the pressing portion may be arranged point-symmetrically with respect to the center of the core.

本発明によれば、コアを安定な状態で固定し、かつ磁気部品の大型化を抑制することが可能となる。   ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to fix a core in a stable state and to suppress enlargement of a magnetic component.

本発明の実施形態による電子装置の要部の平面図である。FIG. 2 is a plan view of a main part of the electronic device according to the embodiment of the present invention. 図１の磁気部品の断面図である。It is sectional drawing of the magnetic component of FIG. 図１の磁気部品の平面図である。It is a top view of the magnetic component of FIG. 図１の磁気部品の側面図である。It is a side view of the magnetic component of FIG. 本発明の他の実施形態による磁気部品の平面図である。FIG. 9 is a plan view of a magnetic component according to another embodiment of the present invention. 図５の磁気部品の側面図である。FIG. 6 is a side view of the magnetic component of FIG. 5. 従来の磁気部品の平面図である。It is a top view of the conventional magnetic component. 図７の磁気部品の断面図である。FIG. 8 is a sectional view of the magnetic component of FIG. 7.

以下、本発明の実施形態につき、図面を参照しながら説明する。各図において、同一の部分または対応する部分には、同一符号を付してある。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the respective drawings, the same portions or corresponding portions are denoted by the same reference numerals.

図１は、実施形態の電子装置１００の要部の平面図である。図２は、図１の磁気部品３の断面図（図１のＡ−Ａ断面図）である。   FIG. 1 is a plan view of a main part of the electronic device 100 according to the embodiment. FIG. 2 is a cross-sectional view of the magnetic component 3 of FIG.

図１に示す電子装置１００は、たとえば車載用のＤＣ−ＤＣコンバータであり、車両のエンジンの近傍に設置される。電子装置１００の筐体１は、金属製または合成樹脂製の放熱体から成る。筐体１は、基板２と電子部品を保持している。その電子部品には、磁気部品３が含まれている。図１では、磁気部品３以外の電子部品の図示を省略している。   The electronic device 100 shown in FIG. 1 is, for example, an on-board DC-DC converter, and is installed near an engine of a vehicle. The housing 1 of the electronic device 100 is made of a heat radiator made of metal or synthetic resin. The housing 1 holds a substrate 2 and electronic components. The electronic component includes a magnetic component 3. In FIG. 1, illustration of electronic components other than the magnetic component 3 is omitted.

基板２はプリント基板から構成されている。基板２は、筐体１上の所定位置にねじ９により固定されている。図示を省略しているが、基板２には、複数の電子部品が実装され、電気回路が形成されている。   The board 2 is composed of a printed board. The board 2 is fixed to a predetermined position on the housing 1 by screws 9. Although not shown, a plurality of electronic components are mounted on the substrate 2 to form an electric circuit.

磁気部品３は、たとえばチョークコイルから構成されている。磁気部品３のコイル４は、金属板を板金加工することにより形成されたエッジワイズコイルから構成され、通電されることにより磁束を発生する。コイル４に大電流を安定に流すため、コイル４の巻線（平角線）の断面積は広くなっている。   The magnetic component 3 is composed of, for example, a choke coil. The coil 4 of the magnetic component 3 is composed of an edgewise coil formed by sheet metal working a metal plate, and generates a magnetic flux when energized. In order to allow a large current to flow through the coil 4 stably, the cross-sectional area of the coil (rectangular wire) of the coil 4 is wide.

コイル４の両端部には、コイル４に電流を流すための端子部４ｂが設けられている。各端子部４ｂは、コア５ａ、５ｂ（図２）の一側方へ引き出されて、電気配線１０（図１）の一端に電気的に接続されている。電気配線１０の他端は、基板２に電気的に接続されている。つまり、コイル４は、基板２に対して電気的に接続されている。   At both ends of the coil 4, terminal portions 4 b for supplying a current to the coil 4 are provided. Each terminal portion 4b is drawn out to one side of the cores 5a, 5b (FIG. 2), and is electrically connected to one end of the electric wiring 10 (FIG. 1). The other end of the electric wiring 10 is electrically connected to the substrate 2. That is, the coil 4 is electrically connected to the substrate 2.

図２に示すように、コア５ａ、５ｂは、断面がＥ形のフェライトコアから構成されている。フェライトは、強い力が加わると歪んだり割れたりする性質（脆弱性）を有する磁性材料である。コア５ａ、５ｂは、コイル４が発生した磁束の磁路を形成する。   As shown in FIG. 2, each of the cores 5a and 5b is formed of a ferrite core having an E-shaped cross section. Ferrite is a magnetic material having the property (fragility) of being distorted or cracked when a strong force is applied. The cores 5a and 5b form a magnetic path of the magnetic flux generated by the coil 4.

図２において、上側に配置されている上コア５ａは、基部５ｃと、基部５ｃから下方へ突出する３つの凸部５ｅ、５ｆ、５ｇを有している。下側に配置されている下コア５ｂは、基部５ｄと、基部５ｄから上方へ突出する３つの凸部５ｈ、５ｉ、５ｊを有している。   In FIG. 2, the upper core 5a disposed on the upper side has a base 5c, and three protrusions 5e, 5f, and 5g projecting downward from the base 5c. The lower core 5b disposed on the lower side has a base 5d and three convex portions 5h, 5i, and 5j projecting upward from the base 5d.

各コア５ａ、５ｂの基部５ｃ、５ｄは、上下方向Ｚから見て、矩形状に形成されている（図１参照）。各コア５ａ、５ｂのＸ方向の幅は、Ｙ方向の幅より大きくなっている。以下、Ｘ方向を長手幅方向といい、Ｙ方向を短手幅方向という。長手幅方向Ｘは、本発明の「第１幅方向」の一例であり、短手幅方向Ｙは、本発明の「第２幅方向」の一例である。   The bases 5c and 5d of the cores 5a and 5b are formed in a rectangular shape when viewed from the vertical direction Z (see FIG. 1). The width in the X direction of each core 5a, 5b is larger than the width in the Y direction. Hereinafter, the X direction is referred to as a longitudinal width direction, and the Y direction is referred to as a lateral width direction. The longitudinal width direction X is an example of the “first width direction” of the present invention, and the short width direction Y is an example of the “second width direction” of the present invention.

図２に示すように、上コア５ａの凸部５ｅ、５ｆ、５ｇは、長手幅方向Ｘに一列に並んでいる。下コア５ｂの凸部５ｈ、５ｉ、５ｊも、長手幅方向Ｘに一列に並んでいる。各コア５ａ、５ｂの中央にある凸部５ｆ、５ｉに対して、左右にある凸部５ｅ、５ｇ、５ｈ、５ｊの方が、基部５ｃ、５ｄからの突出量が多くなっている。   As shown in FIG. 2, the protrusions 5e, 5f, 5g of the upper core 5a are arranged in a line in the longitudinal width direction X. The protrusions 5h, 5i, 5j of the lower core 5b are also arranged in a line in the longitudinal width direction X. The protrusions 5e, 5g, 5h, 5j on the left and right have larger protrusions from the bases 5c, 5d than the protrusions 5f, 5i at the center of the cores 5a, 5b.

上コア５ａの左右の凸部５ｅ、５ｇの先端面（下端面）と、下コア５ｂの左右の凸部５ｈ、５ｊの先端面（上端面）とをそれぞれ密着させて、コア５ａ、５ｂは組み合わされている。そして、コア５ａ、５ｂの長手幅方向Ｘの両端部には、凸部５ｅ、５ｈと基部５ｃ、５ｄの一端部から成る柱部５Ｌと、凸部５ｇ、５ｊと基部５ｃ、５ｄの他端部から成る柱部５ｒとが形成されている。上コア５ａの凸部５ｆと下コア５ｂの凸部５ｉとは、所定の大きさの隙間５ｑをおいて対向している。この隙間５ｑは、センターギャップと呼ばれている。   The tip surfaces (lower end surfaces) of the left and right convex portions 5e and 5g of the upper core 5a and the tip surfaces (upper end surfaces) of the left and right convex portions 5h and 5j of the lower core 5b are brought into close contact with each other. Are combined. At both ends of the cores 5a and 5b in the longitudinal width direction X, pillars 5L each including one of the protrusions 5e and 5h and one end of the bases 5c and 5d, and the other ends of the protrusions 5g and 5j and the bases 5c and 5d. And a pillar portion 5r. The protrusion 5f of the upper core 5a and the protrusion 5i of the lower core 5b face each other with a gap 5q having a predetermined size. This gap 5q is called a center gap.

中央の凸部５ｆ、５ｉは、コイル４の巻線が巻回された巻回部４ａの内側に配置されている。両側の凸部５ｅ、５ｇ、５ｈ、５ｊと柱部５Ｌ、５ｒは、コイル４の巻回部４ａの外側に配置されている。つまり、コイル４の巻線は、コア５ａ、５ｂの各柱部５Ｌ、５ｒと中央の凸部５ｆ、５ｉとの間に形成された孔状の挿通部５ｓに挿通されて、凸部５ｆ、５ｉの周囲に巻回されている。これにより、コイル４に大電流を流したときに、所定のインダクタンスが実現され、該インダクタンスの直流重畳特性がセンターギャップ５ｑにより高められる。   The central convex portions 5f and 5i are arranged inside the winding portion 4a around which the winding of the coil 4 is wound. The protrusions 5e, 5g, 5h, 5j and the pillars 5L, 5r on both sides are arranged outside the winding part 4a of the coil 4. That is, the winding of the coil 4 is inserted into the hole-shaped insertion portion 5s formed between each of the pillars 5L and 5r of the cores 5a and 5b and the central protrusions 5f and 5i, and the protrusions 5f and It is wound around 5i. Thus, when a large current flows through the coil 4, a predetermined inductance is realized, and the DC superposition characteristic of the inductance is enhanced by the center gap 5q.

図１に示すように、コア５ａ、５ｂは、筐体１上の所定位置に配置され、コイル４の巻回部４ａの大部分を覆っている。詳しくは、コア５ａ、５ｂの柱部５Ｌ、５ｒの高さ方向Ｚ（図２）に対して垂直なコア５ａ、５ｂの幅方向Ｘ、Ｙ（図１）のうち、長手幅方向Ｘに対して、コイル４はコア５ａ、５ｂから突出せず、短手幅方向Ｙに対して、コイル４の端子部４ｂと巻回部４ａの一部がコア５ａ、５ｂから突出している。   As shown in FIG. 1, the cores 5a and 5b are arranged at predetermined positions on the housing 1 and cover most of the winding portion 4a of the coil 4. Specifically, of the width directions X and Y (FIG. 1) of the cores 5a and 5b perpendicular to the height direction Z (FIG. 2) of the pillar portions 5L and 5r of the cores 5a and 5b, Thus, the coil 4 does not protrude from the cores 5a and 5b, and the terminal 4b and a part of the winding portion 4a of the coil 4 protrude from the cores 5a and 5b in the short width direction Y.

筐体１は、図２に示すように、下コア５ｂを下方から支持している。下コア５ｂと筐体１との接触面Ｔには、熱伝導性と絶縁性を有するグリスやシートなどを介在させてもよい。   As shown in FIG. 2, the housing 1 supports the lower core 5b from below. Grease or sheet having thermal conductivity and insulation may be interposed on the contact surface T between the lower core 5b and the housing 1.

コア５ａ、５ｂは、上方からばね部材６（図１）により押さえ付けられて、筐体１に固定されている。ばね部材６は、板金加工により片持ち梁状に形成された金属製の板ばねから成る。筐体１は、本発明の「支持部材」の一例である。   The cores 5a and 5b are pressed from above by a spring member 6 (FIG. 1) and fixed to the housing 1. The spring member 6 is a metal leaf spring formed in a cantilever shape by sheet metal processing. The housing 1 is an example of the “support member” of the present invention.

図７および図８は、従来の磁気部品３’を示した図である。詳しくは、図７は、磁気部品３’の平面図であり、図８は、磁気部品３’の断面図（図７のＤ−Ｄ断面図）である。従来の磁気部品３’と図１および図２に示した本実施形態の磁気部品３とでは、ばね部材６の押圧構造が異なっていて、それ以外の部分は同一である。   7 and 8 are views showing a conventional magnetic component 3 '. Specifically, FIG. 7 is a plan view of the magnetic component 3 ′, and FIG. 8 is a cross-sectional view of the magnetic component 3 ′ (a cross-sectional view taken along line DD in FIG. 7). The pressing structure of the spring member 6 is different between the conventional magnetic component 3 'and the magnetic component 3 of the present embodiment shown in FIGS. 1 and 2, and the other parts are the same.

図７に示すように、従来の磁気部品３’のコア５ａ、５ｂの長手幅方向Ｘの両側方には、台座１ｄ’が立設されている。各台座１ｄ’は、図８に示すように、コア５ａ、５ｂの柱部５Ｌ、５ｒの高さ方向Ｚに突出するように、筐体１上に一体的に設けられている。各台座１ｄ’は、コア５ａ、５ｂに対して所定の間隔で離間している。   As shown in FIG. 7, pedestals 1d 'are erected on both sides in the longitudinal width direction X of the cores 5a and 5b of the conventional magnetic component 3'. As shown in FIG. 8, each pedestal 1d 'is integrally provided on the housing 1 so as to protrude in the height direction Z of the pillars 5L, 5r of the cores 5a, 5b. Each pedestal 1d 'is separated from the cores 5a and 5b at a predetermined interval.

ばね部材６は、台座１ｄ’とコア５ａ、５ｂの柱部５Ｌ、５ｒとに跨るように、２つ設けられている。各ばね部材６の一端に設けられた固定部６ａは、各台座１ｄ’上にねじ８により固定されている。各ばね部材６の他端側には、略Ｖ字状に屈曲された押圧部６ｂが設けられている。   Two spring members 6 are provided so as to straddle the pedestal 1d 'and the pillars 5L, 5r of the cores 5a, 5b. A fixing portion 6a provided at one end of each spring member 6 is fixed on each pedestal 1d 'by a screw 8. On the other end side of each spring member 6, a pressing portion 6b bent in a substantially V shape is provided.

各ばね部材６は、固定部６ａが固定された台座１ｄ’上の位置から、コア５ａ、５ｂの長手幅方向Ｘに延び、各柱部５Ｌ、５ｒ上に押圧部６ｂを接触させて、押圧部６ｂで各柱部５Ｌ、５ｒを筐体１に押し付けている。各ばね部材６の押圧部６ｂによる各柱部５Ｌ、５ｒの押圧位置Ｐ’は、図７に示すように、コア５ａ、５ｂの長手幅方向Ｘと平行な第１中心線Ｑｘ上に配置されている。   Each spring member 6 extends in the longitudinal width direction X of the cores 5a, 5b from the position on the pedestal 1d 'to which the fixing portion 6a is fixed, and makes the pressing portion 6b contact each of the column portions 5L, 5r to press. Each column 5L, 5r is pressed against the housing 1 by the portion 6b. As shown in FIG. 7, the pressing positions P ′ of the respective columns 5L, 5r by the pressing portions 6b of the respective spring members 6 are arranged on a first center line Qx parallel to the longitudinal width direction X of the cores 5a, 5b. ing.

上記従来の磁気部品３’では、コア５ａ、５ｂの中実の柱部５Ｌ、５ｒをばね部材６で筐体１に押し付けていて、然もばね部材６による柱部５Ｌ、５ｒの押圧位置Ｐ’がコア５ａ、５ｂの第１中心線Ｑｘ上に位置している。このため、ばね部材６の押圧力によりコア５ａ、５ｂが歪んだり割れたりせず、コア５ａ、５ｂを安定な状態で筐体１に固定することができる。しかし、コア５ａ、５ｂの長手幅方向Ｘの両側方に台座１ｄ’を設けて、ばね部材６をコア５ａ、５ｂに対して長手幅方向Ｘに懸架させているので、磁気部品３’が長手幅方向Ｘに大型化してしまう。そして、このように磁気部品３’が大型化すると、電子装置の筐体１上における磁気部品３’の占有スペースが大きくなり、磁気部品３’や他の部品の配置が難しくなり、電子装置も大型化してしまう。   In the above-mentioned conventional magnetic component 3 ', the solid pillars 5L, 5r of the cores 5a, 5b are pressed against the housing 1 by the spring member 6, and the pressing positions P of the pillars 5L, 5r by the spring member 6 are naturally. Is located on the first center line Qx of the cores 5a and 5b. Therefore, the cores 5a and 5b are not distorted or cracked by the pressing force of the spring member 6, and the cores 5a and 5b can be fixed to the housing 1 in a stable state. However, the pedestals 1d 'are provided on both sides of the cores 5a and 5b in the longitudinal width direction X, and the spring members 6 are suspended in the longitudinal width direction X with respect to the cores 5a and 5b. It becomes large in the width direction X. When the size of the magnetic component 3 ′ increases, the space occupied by the magnetic component 3 ′ on the housing 1 of the electronic device increases, and the arrangement of the magnetic component 3 ′ and other components becomes difficult. It becomes large.

図３および図４は、本実施形態（図１および図２と同様）の磁気部品３を示した図である。詳しくは、図３は、磁気部品３の平面図であり、図４は、磁気部品３の側面図（図３のＢ矢視図）である。   FIGS. 3 and 4 are views showing the magnetic component 3 of the present embodiment (similar to FIGS. 1 and 2). Specifically, FIG. 3 is a plan view of the magnetic component 3 and FIG. 4 is a side view of the magnetic component 3 (a view taken in the direction of arrow B in FIG. 3).

図３に示すように、磁気部品３では、コア５ａ、５ｂの上方から見て、２つのばね部材６の固定部６ａが、柱部５Ｌ、５ｒの高さ方向Ｚ（図２）に対して垂直でかつコア５ａ、５ｂの長手幅方向Ｘと短手幅方向Ｙとに対して斜めとなる方向Ｖにおける、コア５ａ、５ｂとコイル４の巻回部４ａの近傍にそれぞれ配置されている。   As shown in FIG. 3, in the magnetic component 3, when viewed from above the cores 5 a and 5 b, the fixing portions 6 a of the two spring members 6 move in the height direction Z (FIG. 2) of the columns 5 L and 5 r. They are arranged near the cores 5a, 5b and the winding part 4a of the coil 4 in a direction V which is perpendicular and oblique to the longitudinal width direction X and the lateral width direction Y of the cores 5a, 5b.

また、各ばね部材６の固定部６ａは、コイル４の巻回部４ａのコア５ａ、５ｂからの突出部４ｔと長手幅方向Ｘに並び、かつコア５ａ、５ｂの各柱部５Ｌ、５ｒと短手幅方向Ｙに並ぶように配置されている。   Further, the fixed portion 6a of each spring member 6 is arranged in the longitudinal width direction X with the protruding portion 4t of the winding portion 4a of the coil 4 from the core 5a, 5b, and the column portion 5L, 5r of the core 5a, 5b. They are arranged so as to be arranged in the short width direction Y.

筐体１上における、各ばね部材６の固定部６ａに対応する位置には、台座１ｄがそれぞれ設けられている。各台座１ｄは、図４に示すように、コア５ａ、５ｂの柱部５Ｌ、５ｒの高さ方向Ｚに突出するように、筐体１上に一体的に設けられている。各台座１ｄは、コア５ａ、５ｂとコイル４とに対して、それぞれ所定の間隔で離間している。   On the housing 1, pedestals 1d are provided at positions corresponding to the fixing portions 6a of the spring members 6, respectively. As shown in FIG. 4, each pedestal 1d is integrally provided on the housing 1 so as to protrude in the height direction Z of the pillars 5L and 5r of the cores 5a and 5b. Each pedestal 1d is separated from the cores 5a and 5b and the coil 4 at a predetermined interval.

各ばね部材６の固定部６ａは、各台座１ｄ上にねじ８により固定されている。他の例として、ばね部材６と台座１ｄとは金属製であるため、たとえば溶接により、ばね部材６の固定部６ａを台座１ｄ上に固定してもよい。また、その他の固定手段により、ばね部材６の固定部６ａを台座１ｄ上に固定してもよい。   The fixing portion 6a of each spring member 6 is fixed on each pedestal 1d by a screw 8. As another example, since the spring member 6 and the pedestal 1d are made of metal, the fixing portion 6a of the spring member 6 may be fixed on the pedestal 1d by, for example, welding. Further, the fixing portion 6a of the spring member 6 may be fixed on the base 1d by other fixing means.

図３に示すように、上方から見て、各ばね部材６の固定部６ａにおけるコア５ａ、５ｂと反対側の端面６ａ１や、各台座１ｄのコア５ａ、５ｂと反対側の端面１ｄ１から、コア５ａ、５ｂの長手幅方向Ｘと平行な第１中心線Ｑｘまでの最大距離Ｌ１、Ｌ２は、コイル４の巻回部４ａの突出部４ｔの端面４ｔ１から第１中心線Ｑｘまでの最大距離Ｌ３に対して短くなっているか、または同じになっている。 As shown in FIG. 3, when viewed from above, the end surface 6a 1 of the fixing portion 6a of each spring member 6 opposite to the core 5a, 5b or the end surface 1d 1 of each pedestal 1d opposite to the core 5a, 5b. , the maximum distance L1, L2 of the core 5a, until the first center line Qx parallel to the longitudinal width direction X of the 5b are from the end face 4t 1 of the projecting portion 4t of the winding portion 4a of the coil 4 to the first center line Qx It is shorter or equal to the maximum distance L3.

また、各ばね部材６の固定部６ａにおけるコイル４と反対側の端面６ａ２や、各台座１ｄのコイル４と反対側の端面１ｄ２から、コア５ａ、５ｂの短手幅方向Ｙと平行な第２中心線Ｑｙまでの最大距離Ｌ４、Ｌ５は、コア５ａ、５ｂの長手幅方向Ｘの各端面５Ｌ２、５ｒ２から第２中心線Ｑｙまでの最大距離Ｌ６に対して短くなっているか、または同じになっている。 The fixed portion opposite and end face 6a 2 of the coil 4 in 6a of the spring 6, the coil 4 and the opposite end face 1d 2 of each pedestal 1d, parallel to the shorter width direction Y of the core 5a, 5b maximum distance L4, L5 until the second center line Qy is the core 5a, or has become shorter than the maximum distance L6 from the end surfaces 5L 2, 5r 2 in the longitudinal width direction X of 5b to the second center line Qy, Or are the same.

各ばね部材６は、コア５ａ、５ｂの中心Ｑ（中心線Ｑｘ、Ｑｙの交点）に対して点対称に２つ設けられている。詳しくは、各ばね部材６は、固定部６ａが固定された台座１ｄ上の位置から、コア５ａ、５ｂの短手幅方向Ｙに延び、コア５ａ、５ｂの第１中心線Ｑｘを越えて、各柱部５Ｌ、５ｒ上に押圧部６ｂを接触させ、押圧部６ｂで各柱部５Ｌ、５ｒを筐体１に押し付けている。各ばね部材６の押圧部６ｂによる各柱部５Ｌ、５ｒの押圧位置Ｐは、コア５ａ、５ｂの中心Ｑに対して点対称に配置されている。   Two spring members 6 are provided point-symmetrically with respect to the center Q of the cores 5a and 5b (the intersection of the center lines Qx and Qy). Specifically, each spring member 6 extends in the short width direction Y of the cores 5a and 5b from a position on the pedestal 1d to which the fixing portion 6a is fixed, and crosses the first center line Qx of the cores 5a and 5b. The pressing portion 6b is brought into contact with each of the column portions 5L and 5r, and each of the column portions 5L and 5r is pressed against the housing 1 by the pressing portion 6b. The pressing positions P of the columns 5L, 5r by the pressing portions 6b of the spring members 6 are arranged point-symmetrically with respect to the center Q of the cores 5a, 5b.

上記実施形態の磁気部品３によると、コア５ａ、５ｂの中実の柱部５Ｌ、５ｒを片持ち梁状のばね部材６で筐体１に押し付けて、コア５ａ、５ｂを筐体１に固定している。柱部５Ｌ、５ｒには空洞が存在しないため、ばね部材６の押圧力によりコア５ａ、５ｂが歪んだり割れたりせず、コア５ａ、５ｂを筐体１に安定な状態で固定することができる。   According to the magnetic component 3 of the above embodiment, the solid pillars 5L, 5r of the cores 5a, 5b are pressed against the housing 1 by the cantilever spring member 6, and the cores 5a, 5b are fixed to the housing 1. are doing. Since there is no cavity in the pillar portions 5L, 5r, the cores 5a, 5b are not distorted or cracked by the pressing force of the spring member 6, and the cores 5a, 5b can be fixed to the housing 1 in a stable state. .

また、コイル４がコア５ａ、５ｂから突出しない長手幅方向Ｘとコイル４の一部がコア５ａ、５ｂから突出する短手幅方向Ｙとに対して斜めとなる方向Ｖにおける、コア５ａ、５ｂとコイル４の近傍に、ばね部材６の固定部６ａを配置している。このため、従来と同一のばね部材６を用いても、磁気部品３が長手幅方向Ｘと短手幅方向Ｙに大型化するのを抑制することができる。そして、電子装置１００の筐体１上において、磁気部品３の占有スペースを小さくすることができ、磁気部品３や他の部品の配置が難しくなったり、電子装置１００が大型化したりすることも抑制することが可能となる。   The cores 5a, 5b in a direction V in which the coil 4 does not project from the cores 5a, 5b in a longitudinal width direction X and a short width direction Y in which a part of the coil 4 projects from the cores 5a, 5b. The fixed part 6 a of the spring member 6 is arranged near the coil 4. For this reason, even if the same spring member 6 as that of the related art is used, it is possible to suppress the magnetic component 3 from being enlarged in the longitudinal width direction X and the lateral width direction Y. In addition, the space occupied by the magnetic component 3 on the housing 1 of the electronic device 100 can be reduced, and the arrangement of the magnetic component 3 and other components becomes difficult, and the electronic device 100 is prevented from becoming large. It is possible to do.

また、上記実施形態では、上方から見て、ばね部材６の固定部６ａに対応する位置に台座１ｄを設けて、台座１ｄ上に固定部６ａを固定しているので、電子装置１００における筐体１の台座１ｄを含む磁気部品３の設置スペースを小さくして、電子装置１００を小型化することができる。   In the above embodiment, the pedestal 1d is provided at a position corresponding to the fixing portion 6a of the spring member 6 when viewed from above, and the fixing portion 6a is fixed on the pedestal 1d. The installation space for the magnetic component 3 including the one pedestal 1d can be reduced, and the size of the electronic device 100 can be reduced.

また、上記実施形態では、コア５ａ、５ｂの長手幅方向Ｘの両端部に設けられた複数の柱部５Ｌ、５ｒを、複数のばね部材６で筐体１に押し付けているので、コア５ａ、５ｂをより安定な状態で筐体１に固定することができる。また、各ばね部材６の固定部６ａを、コイル４の突出部４ｔと長手幅方向Ｘに並び、かつ各柱部５Ｌ、５ｒと短手幅方向Ｙに並ぶように配置している。このため、磁気部品３が長手幅方向Ｘと短手幅方向Ｙに大型化するのをより抑制することができる。   In the above embodiment, the plurality of pillars 5L, 5r provided at both ends of the cores 5a, 5b in the longitudinal width direction X are pressed against the housing 1 by the plurality of spring members 6, so that the cores 5a, 5b 5b can be fixed to the housing 1 in a more stable state. The fixing portions 6a of the spring members 6 are arranged so as to be aligned with the protruding portions 4t of the coil 4 in the longitudinal width direction X and to be aligned with the column portions 5L and 5r in the short width direction Y. For this reason, it is possible to further suppress the magnetic component 3 from being enlarged in the longitudinal width direction X and the lateral width direction Y.

また、上記実施形態では、コア５ａ、５ｂの短手幅方向Ｙに対して、台座１ｄやばね部材６の固定部６ａを、コイル４の突出部４ｔの端面４ｔ１と同じか、またはそれよりコア５ａ、５ｂの第１中心線Ｑｘに近い位置に配置している。このため、磁気部品３の短手幅方向Ｙの幅Ｗｙ（図３）を、従来の磁気部品３’の短手幅方向Ｙの幅Ｗｙ’（図７）と同程度に抑えて、磁気部品３が短手幅方向Ｙに大型化するのを抑制することができる。 In the above embodiment, the core 5a, the short widthwise direction Y of 5b, the fixing portion 6a of the base 1d and spring 6, or equal to the end surface 4t 1 of the projecting portion 4t of the coil 4, or than The cores 5a and 5b are arranged at positions near the first center line Qx. For this reason, the width Wy (FIG. 3) of the magnetic component 3 in the short width direction Y is suppressed to substantially the same as the width Wy ′ of the conventional magnetic component 3 ′ in the short width direction Y (FIG. 7). 3 can be suppressed from becoming large in the short width direction Y.

また、上記実施形態では、コア５ａ、５ｂの長手幅方向Ｘに対して、台座１ｄやばね部材６の固定部６ａを、コア５ａ、５ｂの長手幅方向Ｘの端面５Ｌ２、５ｒ２と同じか、またはそれよりコア５ａ、５ｂの第２中心線Ｑｙに近い位置に配置している。このため、磁気部品３の長手幅方向Ｘの幅Ｗｘ（図３）を、従来の磁気部品３’の長手幅方向Ｘの幅Ｗｘ’（図７）より小さく抑えて、磁気部品３が長手幅方向Ｘに大型化するのを抑制することができる。 In the above embodiment, the core 5a, relative to the longitudinal width direction X of 5b, the fixing portion 6a of the base 1d and the spring member 6, the core 5a, the end surface 5L 2 in the longitudinal width direction X of 5b, the same as 5r 2 Or at a position closer to the second center line Qy of the cores 5a and 5b. Therefore, the width Wx (FIG. 3) of the magnetic component 3 in the longitudinal width direction X is suppressed to be smaller than the width Wx ′ (FIG. 7) of the conventional magnetic component 3 ′ in the longitudinal width direction. Enlargement in the direction X can be suppressed.

また、上記実施形態では、ばね部材６と台座１ｄとをコア５ａ、５ｂの中心Ｑに対して点対称に２つずつ設け、各ばね部材６の固定部６ａを各台座１ｄ上に固定し、各ばね部材６の押圧部６ｂでコア５ａ、５ｂの柱部５Ｌ、５ｒをそれぞれ押圧している。このため、ばね部材６の数を少なくしながら、コア５ａ、５ｂを安定な状態で筐体１に固定することができる。   In the above embodiment, two spring members 6 and two pedestals 1d are provided point-symmetrically with respect to the center Q of the cores 5a and 5b, and the fixing portions 6a of the respective spring members 6 are fixed on the respective pedestals 1d. The pressing portions 6b of the spring members 6 press the column portions 5L, 5r of the cores 5a, 5b, respectively. Therefore, the cores 5a and 5b can be fixed to the housing 1 in a stable state while the number of the spring members 6 is reduced.

また、ばね部材６のばね長が短いと、ばね部材６がコア５ａ、５ｂを押圧する荷重が大きくなって、コア５ａ、５ｂが歪んだり割れたりし易くなる。然るに、上記実施形態では、各ばね部材６が、固定部６ａの固定された台座１ｄ上の位置から、短手幅方向Ｙに伸びて、第１中心線Ｑｘを越え、各柱部５Ｌ、５ｒ上に押圧部６ｂを接触させて、押圧部６ｂで柱部５Ｌ、５ｒを筐体１に押し付けている。このため、ばね部材６のばね長を長くして、ばね部材６でコア５ａ、５ｂを押圧する荷重を適度な大きさに設定し易くなり、コア５ａ、５ｂが歪んだり割れたりするのを防止することができる。   When the spring length of the spring member 6 is short, the load of the spring member 6 pressing the cores 5a and 5b increases, and the cores 5a and 5b are easily distorted or cracked. However, in the above-described embodiment, each spring member 6 extends in the short width direction Y from the position on the pedestal 1d to which the fixing portion 6a is fixed, crosses the first center line Qx, and has the respective column portions 5L, 5r. The pressing portion 6b is brought into contact with the upper portion, and the column portions 5L and 5r are pressed against the housing 1 by the pressing portion 6b. For this reason, the spring length of the spring member 6 is increased, and the load for pressing the cores 5a and 5b by the spring member 6 can be easily set to an appropriate size, thereby preventing the cores 5a and 5b from being distorted or cracked. can do.

また、複数のばね部材６によるコア５ａ、５ｂの押圧位置が、コア５ａ、５ｂの第１中心線Ｑｘ上からずれると、コア５ａ、５ｂが筐体１に対して不安定な状態で固定されるおそれがある。然るに、上記実施形態では、複数のばね部材６によるコア５ａ、５ｂの押圧位置Ｐを、コア５ａ、５ｂの第１中心線Ｑｘ上からずらしつつ、コア５ａ、５ｂの中心Ｑに対して点対称に配置しているので、コア５ａ、５ｂを筐体１に安定な状態で固定することができる。   When the pressing positions of the cores 5a and 5b by the plurality of spring members 6 deviate from the first center line Qx of the cores 5a and 5b, the cores 5a and 5b are fixed to the housing 1 in an unstable state. May be present. However, in the above-described embodiment, the pressing positions P of the cores 5a and 5b by the plurality of spring members 6 are point-symmetric with respect to the center Q of the cores 5a and 5b while being shifted from the first center line Qx of the cores 5a and 5b. The cores 5a and 5b can be fixed to the housing 1 in a stable state.

本発明は、上述した以外にも種々の実施形態を採用することができる。たとえば、以上の実施形態では、台座１ｄやばね部材６の固定部６ａを、短手幅方向Ｙに対してコイル４の突出部４ｔの端面４ｔ１と同じかまたはそれより第１中心線Ｑｘに近い位置に配置し、かつ長手幅方向Ｘに対してコア５ａ、５ｂの端面５Ｌ２、５ｒ２と同じかまたはそれより第２中心線Ｑｙに近い位置に配置した例を示した。然るに、本発明はこれらのみに限定するものではなく、台座１ｄやばね部材６の固定部６ａをコア５ａ、５ｂの幅方向Ｘ、Ｙに対して、コイル４の突出部４ｔの端面４ｔ１より第１中心線Ｑｘと反対側に若干突出するように配置したり、コア５ａ、５ｂの端面５Ｌ２、５ｒ２より第２中心線Ｑｙと反対側に若干突出するように配置したりしてもよい。さらに、ばね部材６の押圧部６ｂの押圧位置Ｐを、第１中心線Ｑｘ上に配置したり、第１中心線Ｑｘより台座１ｄ側に配置したりしてもよい。 The present invention can adopt various embodiments other than those described above. For example, in the above embodiment, the fixed portion 6a of the base 1d and the spring member 6, the same as the end surface 4t 1 of the projecting portion 4t of the coil 4 against the short width direction Y or above the first center line Qx placed in close and shows an example in which located closer to the core 5a, 5b of the end face 5L 2, 5r 2 and equal to or more second center line Qy to the longitudinal width direction X. However, the present invention is not limited only to, the fixed portion 6a of the core 5a of the base 1d and the spring member 6, the width direction X of 5b, relative to Y, the end face 4t 1 of the projecting portion 4t of the coil 4 Even if it is arranged so as to slightly protrude to the side opposite to the first center line Qx, or to protrude slightly from the end faces 5L 2 and 5r 2 of the cores 5a and 5b to the side opposite to the second center line Qy. Good. Further, the pressing position P of the pressing portion 6b of the spring member 6 may be arranged on the first center line Qx, or may be arranged on the pedestal 1d side from the first center line Qx.

また、以上の記実施形態では、ばね部材６として片持ち梁状の板ばねを用い、該ばね部材６の一端側に設けた固定部６ａを、筐体１に立設した台座１ｄ上に固定した例を示したが、本発明はこれのみに限定するものではない。片持ち梁状のばね部材６に代えて、たとえば図５および図６に示す他の実施形態のように、両端支持梁状のばね部材７を用いて、該ばね部材７の両端に設けた固定部７ａを筐体１の上面に固定してもよい。図５は、磁気部品３の平面図であり、図６は、磁気部品３の側面図（図５のＣ矢視図）である。   In the above embodiment, a cantilever plate spring is used as the spring member 6, and the fixing portion 6 a provided at one end of the spring member 6 is fixed on the pedestal 1 d erected on the housing 1. However, the present invention is not limited to this example. Instead of the cantilever-shaped spring member 6, for example, as shown in other embodiments shown in FIGS. The portion 7a may be fixed to the upper surface of the housing 1. FIG. 5 is a plan view of the magnetic component 3, and FIG. 6 is a side view of the magnetic component 3 (a view taken in the direction of arrow C in FIG. 5).

図５および図６において、ばね部材７は、板金加工によりほぼＭ字形に折り曲げられている。図５に示すように、ばね部材７は２つ設けられ、コア５ａ、５ｂの短手幅方向Ｙと平行に配置されている。各ばね部材７の両端に設けられた固定部７ａは、柱部５Ｌ、５ｒの高さ方向Ｚに対して垂直でかつコア５ａ、５ｂの幅方向Ｘ、Ｙに対して斜めとなる方向Ｖにおける、コア５ａ、５ｂとコイル４の近傍に配置され、図６に示すように筐体１の上面にねじ８で固定されている。各ばね部材７の中央に設けられた押圧部７ｂは、各柱部５Ｌ、５ｒの第１中心線Ｑｘ上に位置し、この位置で各柱部５Ｌ、５ｒを筐体１に押し付けて、コア５ａ、５ｂを筐体１に固定している。つまり、各ばね部材７による柱部５Ｌ、５ｒの押圧位置Ｐａ（図５）は、第１中心線Ｑｘ上に設定されている。このようにしても、コア５ａ、５ｂを安定な状態で筐体１に固定し、かつ磁気部品３の大型化を抑制することができる。   5 and 6, the spring member 7 is bent into a substantially M shape by sheet metal working. As shown in FIG. 5, two spring members 7 are provided and are arranged in parallel with the short width direction Y of the cores 5a and 5b. The fixing portions 7a provided at both ends of each spring member 7 are perpendicular to the height direction Z of the pillar portions 5L and 5r and oblique to the width directions X and Y of the cores 5a and 5b. , Are disposed near the cores 5a and 5b and the coil 4, and are fixed to the upper surface of the housing 1 with screws 8 as shown in FIG. The pressing portion 7b provided at the center of each spring member 7 is located on the first center line Qx of each of the column portions 5L and 5r. At this position, each of the column portions 5L and 5r is pressed against the housing 1 to form a core. 5 a and 5 b are fixed to the housing 1. That is, the pressing position Pa (FIG. 5) of the column portions 5L and 5r by the respective spring members 7 is set on the first center line Qx. Even in this case, the cores 5a and 5b can be fixed to the housing 1 in a stable state, and the size of the magnetic component 3 can be suppressed.

以上の記実施形態では、ばね部材６、７や台座１ｄを２つずつ設けた例を示したが、本発明はこれのみに限定するものではなく、ばね部材６、７や台座１ｄをそれぞれ１つまたは３つ以上設けてもよい。また、ばね部材６、７や台座１ｄの数を、コア５ａ、５ｂの柱部５Ｌ、５ｒの数と異ならせてもよい。また、ばね部材６、７や台座１ｄを金属以外の材料で形成してもよい。また、弾性体と剛体を組み合わせることにより、ばね部材６、７を構成してもよい。   In the above-described embodiment, an example in which two spring members 6 and 7 and two pedestals 1d are provided is shown. However, the present invention is not limited to this, and each of the spring members 6 and 7 and one pedestal 1d is One or three or more may be provided. Further, the number of the spring members 6, 7 and the pedestal 1d may be different from the number of the pillars 5L, 5r of the cores 5a, 5b. Further, the spring members 6, 7 and the pedestal 1d may be formed of a material other than metal. Also, the spring members 6 and 7 may be configured by combining an elastic body and a rigid body.

また、以上の実施形態では、コア５ａ、５ｂを電子装置１００の筐体１で支持して、該筐体１に固定した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、筐体１とは別の支持部材によりコア５ａ、５ｂを支持して、ばね部材６、７によりコア５ａ、５ｂを当該支持部材に固定し、当該支持部材をねじや接着剤などの固定手段で筐体１に固定してもよい。   In the above embodiment, the cores 5a and 5b are supported by the housing 1 of the electronic device 100 and fixed to the housing 1. However, the present invention is not limited to this. In addition, for example, the cores 5a and 5b are supported by a support member different from the housing 1, the cores 5a and 5b are fixed to the support members by spring members 6 and 7, and the support members are screwed or bonded. It may be fixed to the housing 1 by a fixing means such as an agent.

また、以上の実施形態では、断面がＥ形の２つのフェライトコア５ａ、５ｂを上下に組み合わせてコアを構成した例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、断面がＥ形のコアと、断面がＩ形のコアとを組み合わせてコアを構成してもよい。また、その他の形状のコアを１つだけ用いてもよいし、３つ以上組み合わせてコアを構成してもよい。また、上下方向から見たコアの形状は、矩形以外であってもよい。さらに、フェライト以外の磁性材料で形成されたコアを用いてもよい。また、コアに設ける柱部は１つでもよいし、３つ以上でもよい。   Further, in the above-described embodiment, an example is described in which the core is formed by vertically combining two ferrite cores 5a and 5b having an E-shaped cross section, but the present invention is not limited to this. Alternatively, for example, the core may be configured by combining an E-shaped core with an I-shaped cross-section. Further, only one core having another shape may be used, or a core may be formed by combining three or more cores. Further, the shape of the core as viewed from above and below may be other than rectangular. Further, a core formed of a magnetic material other than ferrite may be used. Further, the number of pillars provided in the core may be one, or three or more.

また、以上の実施形態では、コイル４としてエッジワイズコイルを用いた例を示したが、本発明はこれのみに限定するものではない。これ以外に、たとえば、プリント基板の配線パターンで構成されているコイルを用いてもよい。また、巻線の断面が平角形以外の角形や円形などである他の形状のコイルを用いてもよい。   Further, in the above embodiment, an example in which an edgewise coil is used as the coil 4 has been described, but the present invention is not limited to this. Other than this, for example, a coil constituted by a wiring pattern of a printed circuit board may be used. Further, a coil having a cross section other than a rectangular shape, such as a rectangular shape or a circular shape, may be used.

また、以上の実施形態では、チョークコイルから成る磁気部品３に対して本発明を適用した例を示したが、トランスなどの他の磁気部品に対しても本発明は適用することが可能である。   Further, in the above embodiment, the example in which the present invention is applied to the magnetic component 3 including the choke coil has been described. However, the present invention can be applied to other magnetic components such as a transformer. .

さらに、以上の実施形態では、車両のエンジンの近傍に設置される車載用のＤＣ−ＤＣコンバータから成る電子装置１００と、該電子装置１００に備わる磁気部品３に対して本発明を適用した例を挙げたが、その他の車載用の電子装置や、車載用以外の電子装置や、それらに備わる磁気部品に対しても、本発明を適用することは可能である。   Further, in the above-described embodiment, an example in which the present invention is applied to the electronic device 100 including a vehicle-mounted DC-DC converter installed near the engine of the vehicle and the magnetic component 3 provided in the electronic device 100 is described. However, the present invention can be applied to other on-vehicle electronic devices, non-on-vehicle electronic devices, and magnetic components provided therein.

１ 筐体（支持部材）
１ｄ 台座
１ｄ１、１ｄ２ 端面
３ 磁気部品
４ コイル
４ａ 巻回部
４ｔ 突出部
４ｔ１ 端面
５ａ 上コア
５ｂ 下コア
５Ｌ、５ｒ 柱部
５Ｌ２、５ｒ２ 端面
６、７ ばね部材
６ａ、７ａ 固定部
６ｂ、７ｂ 押圧部
６ａ１、６ａ２ 端面
１００ 電子装置
Ｌ１〜Ｌ６ 最大距離
Ｐ、Ｐａ 押圧位置
Ｑ 中心
Ｑｘ 第１中心線
Ｑｙ 第２中心線
Ｔ 接触面
Ｖ 斜め方向
Ｘ 長手幅方向（第１幅方向）
Ｙ 短手幅方向（第２幅方向）
Ｚ 高さ方向 1 housing (supporting member)
1d pedestal 1d 1, 1d 2 end surface 3 magnetics 4 coil 4a wound portions 4t protruding portion 4t 1 end surface 5a on the core 5b under core 5L, 5r pillar portion 5L 2, 5r 2 end surfaces 6 and 7 the spring member 6a, 7a fixed part 6b, 7b pressing portion 6a 1, 6a 2 end surface 100 electronics L1~L6 maximum distance P, Pa pressing position Q center Qx first center line Qy second center line T contact surface V oblique direction X longitudinal width direction (first width direction)
Y Short width direction (second width direction)
Z height direction

Claims (9)

通電されることにより磁束を発生するコイルと、
前記磁束の磁路を形成する磁性体から成るコアと、
前記コアを支持する支持部材に対して、前記コアを押し付けて固定する梁状のばね部材と、
を備えた磁気部品において、
前記コアは、前記支持部材との接触面に対して垂直に設けられた柱部を有し、
前記コイルは、前記柱部の高さ方向に対して垂直な前記コアの第１幅方向に対して、前記コアから突出せず、前記柱部の高さ方向と前記第１幅方向とに対して垂直な前記コアの第２幅方向に対して、前記コアから一部突出し、
前記ばね部材は、前記支持部材に固定される固定部と、前記柱部に接触して、前記柱部を前記支持部材に押し付ける押圧部と、を有し、
前記固定部は、前記柱部の高さ方向に対して垂直でかつ前記第１幅方向と前記第２幅方向とに対して斜めとなる方向における、前記コアと前記コイルの近傍に配置されている、ことを特徴とする磁気部品。 A coil that generates a magnetic flux when energized;
A core made of a magnetic material forming a magnetic path of the magnetic flux,
A beam-shaped spring member that presses and fixes the core against a support member that supports the core,
In a magnetic component having
The core has a pillar portion provided perpendicular to a contact surface with the support member,
The coil does not protrude from the core with respect to a first width direction of the core that is perpendicular to a height direction of the pillar portion, and does not project with respect to the height direction of the pillar portion and the first width direction. A part of the core projects perpendicularly to a second width direction of the core,
The spring member has a fixing portion fixed to the support member, and a pressing portion that contacts the column portion and presses the column portion against the support member,
The fixing portion is disposed near the core and the coil in a direction perpendicular to the height direction of the pillar portion and oblique to the first width direction and the second width direction. A magnetic component. 請求項１に記載の磁気部品において、
前記ばね部材の前記固定部は、前記支持部材における前記固定部と対応する位置に設けられた台座上に固定されている、ことを特徴とする磁気部品。 The magnetic component according to claim 1,
The magnetic component, wherein the fixing portion of the spring member is fixed on a pedestal provided at a position corresponding to the fixing portion of the support member. 請求項１または請求項２に記載の磁気部品において、
前記コアは、前記柱部の高さ方向から見て矩形状に形成され、
前記コアの前記第１幅方向の幅は、前記第２幅方向の幅より大きく、
前記柱部は、前記第１幅方向の両端部でかつ前記コイルの巻線が巻回された巻回部の外側に複数設けられ、
前記ばね部材は、片持ち梁状の板ばねから成り、前記柱部に対応して複数設けられ、
前記各ばね部材の前記固定部は、前記コイルの巻線部の前記コアからの突出部と前記第１幅方向に並び、かつ前記各柱部と前記第２幅方向に並ぶように配置されている、ことを特徴とする磁気部品。 The magnetic component according to claim 1 or 2,
The core is formed in a rectangular shape as viewed from the height direction of the pillar portion,
The width of the core in the first width direction is larger than the width in the second width direction,
A plurality of the pillar portions are provided at both ends in the first width direction and outside of a winding portion around which the winding of the coil is wound,
The spring member is formed of a cantilever plate spring, and a plurality of spring members are provided corresponding to the pillar portions.
The fixing portion of each of the spring members is arranged so as to be aligned with the projecting portion of the coil portion of the coil from the core in the first width direction, and to be aligned with each of the pillar portions in the second width direction. A magnetic component. 請求項３に記載の磁気部品において、
前記柱部の高さ方向から見て、前記固定部における前記コアと反対側の端面から、前記第１幅方向と平行な第１中心線までの最大距離は、前記コイルの前記突出部の端面から前記第１中心線までの最大距離に対して同じかまたは短い、ことを特徴とする磁気部品。 The magnetic component according to claim 3,
When viewed from the height direction of the pillar portion, the maximum distance from the end surface of the fixing portion opposite to the core to the first center line parallel to the first width direction is the end surface of the projecting portion of the coil. A magnetic component that is the same or shorter than a maximum distance from the first center line to the first center line. 請求項３または請求項４に記載の磁気部品において、
前記柱部の高さ方向から見て、前記固定部における前記コイルと反対側の端面から、前記第２幅方向と平行な第２中心線までの最大距離は、前記第１幅方向の端面から前記第２中心線までの最大距離に対して同じかまたは短い、ことを特徴とする磁気部品。 In the magnetic component according to claim 3 or claim 4,
When viewed from the height direction of the column portion, the maximum distance from the end surface of the fixed portion opposite to the coil to a second center line parallel to the second width direction is from the end surface in the first width direction. A magnetic component, which is the same as or shorter than the maximum distance to the second center line. 請求項３ないし請求項５のいずれかに記載の磁気部品において、
前記柱部は、前記コアの前記第１幅方向の両端部に１つずつ設けられ、
前記ばね部材は、前記コアの中心に対して点対称に２つ設けられている、ことを特徴とする磁気部品。 The magnetic component according to any one of claims 3 to 5,
The pillars are provided one at each end of the core in the first width direction,
The magnetic component, wherein two spring members are provided point-symmetrically with respect to the center of the core. 請求項６に記載の磁気部品において、
前記各ばね部材は、前記柱部の高さ方向から見て、前記固定部が固定された位置から前記第２幅方向に延びて、前記第１幅方向と平行な第１中心線を越えた位置で、前記各柱部に前記押圧部が接触しており、
前記押圧部の各押圧位置は、前記コアの中心に対して点対称に配置されている、ことを特徴とする磁気部品。 The magnetic component according to claim 6,
Each of the spring members extends in the second width direction from a position where the fixing portion is fixed, as viewed from the height direction of the pillar portion, and crosses a first center line parallel to the first width direction. At the position, the pressing portion is in contact with each of the pillar portions,
A magnetic component, wherein each pressing position of the pressing portion is arranged point-symmetrically with respect to the center of the core. 請求項１ないし請求項７のいずれかに記載の磁気部品と、
前記磁気部品に備わるコアを支持しかつ固定する支持部材と、を備えたことを特徴とする電子装置。 A magnetic component according to any one of claims 1 to 7,
An electronic device, comprising: a support member that supports and fixes a core provided in the magnetic component. 請求項８に記載の電子装置において、
前記支持部材は、前記磁気部品に備わる前記ばね部材の前記固定部を固定する台座を有し、
前記コアの柱部の高さ方向から見て、
前記台座の前記コアと反対側の端面から、前記第１幅方向と平行な第１中心線までの最大距離は、前記磁気部品に備わる前記コイルの巻線の巻回部における前記コアからの突出部の端面から前記第１中心線までの最大距離に対して同じかもしくは短く、
または、前記台座の前記コイルと反対側の端面から、前記第２幅方向と平行な第２中心線までの最大距離は、前記第１幅方向の端面から前記第２中心線までの最大距離に対して同じかもしくは短い、ことを特徴とする電子装置。 The electronic device according to claim 8,
The support member has a pedestal that fixes the fixing portion of the spring member provided on the magnetic component,
When viewed from the height direction of the pillar portion of the core,
A maximum distance from an end surface of the pedestal opposite to the core to a first center line parallel to the first width direction is equal to a protrusion from the core at a winding portion of a coil winding provided on the magnetic component. The same or shorter than the maximum distance from the end face of the part to the first center line,
Alternatively, the maximum distance from the end face of the pedestal opposite to the coil to a second center line parallel to the second width direction is the maximum distance from the end face in the first width direction to the second center line. An electronic device, which is the same as or shorter than the electronic device.
JP2018116248A 2018-06-19 2018-06-19 Magnetic component and electronic apparatus Pending JP2019220556A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2018116248A JP2019220556A (en) 2018-06-19 2018-06-19 Magnetic component and electronic apparatus
PCT/JP2019/023430 WO2019244760A1 (en) 2018-06-19 2019-06-13 Magnetic component and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018116248A JP2019220556A (en) 2018-06-19 2018-06-19 Magnetic component and electronic apparatus

Publications (1)

Publication Number Publication Date
JP2019220556A true JP2019220556A (en) 2019-12-26

Family

ID=68983699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2018116248A Pending JP2019220556A (en) 2018-06-19 2018-06-19 Magnetic component and electronic apparatus

Country Status (2)

Country Link
JP (1) JP2019220556A (en)
WO (1) WO2019244760A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096805U (en) * 1983-12-09 1985-07-02 株式会社東芝 Transformer fixing device
JP2014045214A (en) * 2013-11-08 2014-03-13 Mitsubishi Electric Corp On-vehicle power converter
JP2015118987A (en) * 2013-12-17 2015-06-25 Tdk株式会社 Coil substrate, winding component and power supply
WO2017221804A1 (en) * 2016-06-22 2017-12-28 Fdk株式会社 Inductor and mounting structure of said inductor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6096805U (en) * 1983-12-09 1985-07-02 株式会社東芝 Transformer fixing device
JP2014045214A (en) * 2013-11-08 2014-03-13 Mitsubishi Electric Corp On-vehicle power converter
JP2015118987A (en) * 2013-12-17 2015-06-25 Tdk株式会社 Coil substrate, winding component and power supply
WO2017221804A1 (en) * 2016-06-22 2017-12-28 Fdk株式会社 Inductor and mounting structure of said inductor

Also Published As

Publication number Publication date
WO2019244760A1 (en) 2019-12-26

Similar Documents

Publication Publication Date Title
CN107431470B (en) Substrate-type noise filter and electronic device
US7952457B2 (en) Coil component
US8432245B2 (en) Power module and circuit board assembly thereof
JP5271995B2 (en) Trance
US20120056707A1 (en) Transformer for a power supply converter
JP7147266B2 (en) Magnetic parts, electronic devices
WO2019244760A1 (en) Magnetic component and electronic device
KR20070066561A (en) Inductor apparatus, circuit board, and electronic device using the same
JP5909901B2 (en) Reactor
JP4772879B2 (en) Inductor
JP5216490B2 (en) Outer iron type amorphous transformer
US9089070B2 (en) Inverter and electronic device using the inverter
JP7198129B2 (en) Coil parts, electronic devices
US11081869B2 (en) Electrical junction box
JP2017112349A (en) Coil assembly and circuit structure
JP7198128B2 (en) Coil parts, electronic devices
JP2019220658A (en) Coil component and electronic apparatus
US11094453B2 (en) Electronic device and method for manufacturing electronic device
JP5690572B2 (en) Trance
KR20130088668A (en) Multi inductor usable with slim flat type image display apparatus
US20240177916A1 (en) Transformer and circuit board comprising same
JPH10256796A (en) Electronic component fixing apparatus
KR102626341B1 (en) Inductor and dc-dc converter including the same
JP2006311365A (en) Three terminal electronic component and its using method
JPH0646012Y2 (en) Discharge lamp lighting device

Legal Events

Date Code Title Description
A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20190311

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20190319

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20210406

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20220607

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20221129