JP2020167194A - Electrical machine - Google Patents
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- JP2020167194A JP2020167194A JP2019064017A JP2019064017A JP2020167194A JP 2020167194 A JP2020167194 A JP 2020167194A JP 2019064017 A JP2019064017 A JP 2019064017A JP 2019064017 A JP2019064017 A JP 2019064017A JP 2020167194 A JP2020167194 A JP 2020167194A
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- 239000000463 material Substances 0.000 claims abstract description 54
- 238000004804 winding Methods 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 16
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract 2
- 230000000452 restraining effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 2
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Coils Or Transformers For Communication (AREA)
Abstract
Description
本発明は、電気機器に関する。 The present invention relates to electrical equipment.
電気機器におけるコイル部品は、例えば特許文献１に記載のコイル部品のように、ボビンに捲回されたコイルと、コイルに流れる電流によって磁路を形成するコアと、を備える。特許文献１に記載のコイル部品において、コアは、コイル内に挿通される内側コアと、コイルへの挿通方向における内側コアの一方端部と他方端部とをコイル外で繋ぐ外側コアと、を有する。また、特許文献１に記載のコイル部品において、コイルは、外側コアから露出する露出部を有する。 A coil component in an electric device includes, for example, a coil wound around a bobbin and a core forming a magnetic path by a current flowing through the coil, as in the coil component described in Patent Document 1. In the coil component described in Patent Document 1, the core includes an inner core that is inserted into the coil and an outer core that connects one end and the other end of the inner core in the direction of insertion into the coil outside the coil. Have. Further, in the coil component described in Patent Document 1, the coil has an exposed portion exposed from the outer core.
また、電気機器は、例えばコイルから引き出された巻線の端部に接続された端子を介して基板に接続される。そして、電気機器では、コイルからの放熱を図る目的で、コイル部品が載置される載置部材の載置面上に伝熱材を設け、この伝熱材にコイルの露出部が接触するようにコイル部品を載置部材に載置させることが考えられる。こうしてコイル部品が載置された電気機器では、電気機器の使用に伴ってコイルが発熱しても、伝熱材を介してコイルから載置部材に放熱できる。 Also, the electrical equipment is connected to the substrate, for example, via a terminal connected to the end of the winding drawn from the coil. Then, in electrical equipment, for the purpose of dissipating heat from the coil, a heat transfer material is provided on the mounting surface of the mounting member on which the coil parts are mounted so that the exposed portion of the coil comes into contact with the heat transfer material. It is conceivable to mount the coil component on the mounting member. In the electric device on which the coil component is mounted in this way, even if the coil generates heat due to the use of the electric device, heat can be dissipated from the coil to the mounting member via the heat transfer material.
ところで、載置部材にコイル部品を載置させる作業では、その作業の都度で載置面上でのコイル部品の位置にばらつきが生じるおそれがある。そして、載置面上でのコイル部品の位置によっては、載置面上の伝熱材の位置からコイルの露出部がずれてしまい、伝熱材によって得られるコイルの放熱効果が低下してしまう。そのため、電気機器では、載置面上でのコイル部品の位置のばらつきに応じて、得られるコイルの放熱効果にばらつきが生じるおそれがある。 By the way, in the work of mounting the coil component on the mounting member, the position of the coil component on the mounting surface may vary depending on the work. Then, depending on the position of the coil component on the mounting surface, the exposed portion of the coil may be displaced from the position of the heat transfer material on the mounting surface, and the heat dissipation effect of the coil obtained by the heat transfer material may be reduced. .. Therefore, in an electric device, the heat dissipation effect of the obtained coil may vary depending on the variation in the position of the coil component on the mounting surface.
なお、載置面上において伝熱材を設ける範囲を広げれば、コイル部品の位置がずれても伝熱材をコイルの露出部に対応した位置とできるため、コイルの放熱効果にばらつきは生じない。しかしながら、伝熱材を載置面上の広範囲に設ける分だけ多くの伝熱材が必要となるため、電気機器の製造にかかる製造コストがかさむおそれがある。 If the range in which the heat transfer material is provided on the mounting surface is widened, the heat transfer material can be positioned corresponding to the exposed portion of the coil even if the position of the coil component shifts, so that the heat dissipation effect of the coil does not vary. .. However, since a large amount of heat transfer material is required as much as the heat transfer material is provided over a wide area on the mounting surface, the manufacturing cost for manufacturing the electric device may increase.
本発明は、上記課題を解決するためになされたものであり、その目的は、製造コストがかさむことを抑制しつつ、伝熱材によって得られるコイルの放熱効果のばらつきを抑制できる電気機器を提供することにある。 The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric device capable of suppressing variations in heat dissipation effect of a coil obtained by a heat transfer material while suppressing an increase in manufacturing cost. To do.
上記課題を解決する電気機器は、ボビンに捲回されたコイルと、前記コイルに流れる電流によって磁路を形成するコアと、を備えるコイル部品が載置部材に載置された電気機器であって、前記コイルは、前記コイルから引き出された巻線の端部に接続された端子を介して基板に接続されており、前記コアは、前記コイル内に挿通される内側コアと、前記コイルへの挿通方向における前記内側コアの一方端部と他方端部とを前記コイル外で繋ぐ外側コアと、を有し、前記コイルは、前記載置部材における前記コイル部品が載置される載置面に対向するとともに前記外側コアから露出する露出部を有し、前記ボビン及び前記コアの一方は位置決め孔を有し、前記載置部材は、前記載置面上に設けられた伝熱材と、前記載置面上から突出する位置決めピンと、を有し、前記コイル部品は、前記位置決め孔に前記位置決めピンが挿通された状態で前記露出部が前記伝熱材に接触して前記載置面に載置されていることを特徴とする。 An electric device that solves the above problems is an electric device in which a coil component including a coil wound around a bobbin and a core that forms a magnetic path by a current flowing through the coil is mounted on a mounting member. The coil is connected to a substrate via a terminal connected to an end of a winding drawn from the coil, and the core is inserted into the coil and into the coil. It has an outer core that connects one end and the other end of the inner core in the insertion direction outside the coil, and the coil is placed on a mounting surface on which the coil component is mounted in the above-mentioned mounting member. It has an exposed portion that faces and is exposed from the outer core, one of the bobbin and the core has a positioning hole, and the pre-described placing member is a heat transfer material provided on the pre-described mounting surface and the front. The coil component has a positioning pin protruding from the mounting surface, and the coil component is placed on the mounting surface described above when the exposed portion contacts the heat transfer material with the positioning pin inserted through the positioning hole. It is characterized by being placed.
上記構成によれば、位置決め孔を載置部材の位置決めピンに挿通することによって、載置部材にコイル部品を載置させる作業を行うことができる。そのため、載置部材にコイル部品を載置させる作業の都度で、載置部材の載置面上でのコイル部品の位置にばらつきが生じにくくなる。そして、載置部材の載置面に対向するコイルの露出部が載置面上の伝熱材の位置からずれることによるコイル部品の放熱効果の低下を抑制できる。したがって、伝熱材の位置ずれに起因する伝熱材によるコイルの放熱効果のばらつきを抑制できる。また、コイルが対向する載置面の範囲に伝熱材を設けることができるため、載置面に対向するコイルの露出部の大きさよりも大きな範囲まで余分に伝熱材を設ける必要がなくなり、電気機器の製造にかかる製造コストがかさむことを抑制できる。 According to the above configuration, the operation of mounting the coil component on the mounting member can be performed by inserting the positioning hole into the positioning pin of the mounting member. Therefore, the position of the coil component on the mounting surface of the mounting member is less likely to vary each time the coil component is mounted on the mounting member. Then, it is possible to suppress a decrease in the heat dissipation effect of the coil component due to the exposed portion of the coil facing the mounting surface of the mounting member being displaced from the position of the heat transfer material on the mounting surface. Therefore, it is possible to suppress variations in the heat dissipation effect of the coil due to the heat transfer material due to the displacement of the heat transfer material. Further, since the heat transfer material can be provided in the range of the mounting surface facing the coil, it is not necessary to provide an extra heat transfer material in a range larger than the size of the exposed portion of the coil facing the mounting surface. It is possible to prevent the manufacturing cost of manufacturing electrical equipment from increasing.
電気機器において、前記外側コアは、前記内側コアの前記コイルへの挿通方向における前記内側コアの両端部から前記載置面に直交する方向における前記露出部から離間する方向に延びる一対の第１外側コアと、前記載置面に直交する方向において前記露出部とは反対側で一対の前記第１外側コアを繋ぐ第２外側コアと、を有し、前記第２外側コアは、前記コイルと対向しない側に押圧面を有し、前記載置部材は、前記押圧面を前記載置面に向かって押圧する押圧部材を有することが好ましい。 In electrical equipment, the outer core is a pair of first outer surfaces extending in a direction away from the exposed portion in a direction orthogonal to the above-mentioned mounting surface from both ends of the inner core in the insertion direction of the inner core into the coil. It has a core and a second outer core that connects a pair of the first outer cores on the side opposite to the exposed portion in a direction orthogonal to the above-mentioned mounting surface, and the second outer core faces the coil. It is preferable that the pre-described mounting member has a pressing member on the non-previous side, and the pre-described mounting member has a pressing member that presses the pressing surface toward the pre-described mounting surface.
電気機器の搭載環境によっては、電気機器に振動が生じることがある。その振動が載置部材の載置面からコイル部品が離れるような振動の場合、コイル部品が載置部材に強く当接することでコイル部品の変形が生じるおそれがある。上記構成によれば、押圧部材によって、第２外側コアの押圧面が載置部材の載置面に向かって押圧されている。そのため、電気機器に振動が生じても、コイル部品が載置部材の載置面から離れにくくなる。したがって、コイル部品が載置部材に強く当接することによるコイル部品の変形を抑制できる。 Depending on the mounting environment of the electrical equipment, the electrical equipment may vibrate. When the vibration causes the coil component to separate from the mounting surface of the mounting member, the coil component may be strongly abutted against the mounting member, resulting in deformation of the coil component. According to the above configuration, the pressing member presses the pressing surface of the second outer core toward the mounting surface of the mounting member. Therefore, even if the electric device vibrates, the coil component is difficult to separate from the mounting surface of the mounting member. Therefore, it is possible to suppress deformation of the coil component due to strong contact of the coil component with the mounting member.
電気機器において、前記押圧面は前記載置面の延びる方向に延びる平坦面であり、前記平坦面上に放熱板が載置されており、前記押圧部材は、前記放熱板を介して前記平坦面を押圧することが好ましい。 In an electric device, the pressing surface is a flat surface extending in the extending direction of the above-mentioned mounting surface, a heat radiating plate is placed on the flat surface, and the pressing member is the flat surface via the heat radiating plate. It is preferable to press.
上記構成によれば、電気機器の使用に伴ってコアにて生じた熱が第２外側コアから放熱板に伝わり、放熱板から大気中に放出される。したがって、放熱板によってコアからの放熱を行うことができる。 According to the above configuration, the heat generated in the core due to the use of the electric device is transferred from the second outer core to the heat radiating plate, and is released from the heat radiating plate to the atmosphere. Therefore, the heat dissipation plate can dissipate heat from the core.
電気機器において、前記ボビンは、前記端子を前記基板にガイドするガイド部を有することが好ましい。
コイルから引き出された巻線の端部の長さや湾曲程度はコイル部品ごとでばらつきが生じやすい。そのため、巻線の端部に取り付けられている端子の位置もコイル部品ごとでばらつきが生じやすい。上記構成によれば、ガイド部によって端子の位置をガイドしながら、基板への端子の接続作業を行うことができる。したがって、基板に対応する位置に端子の位置を設定しやすくなり、基板への端子の接続作業を短時間で行うことができる。
In electrical equipment, the bobbin preferably has a guide portion that guides the terminal to the substrate.
The length and degree of curvature of the end of the winding drawn from the coil tend to vary from coil to coil component. Therefore, the positions of the terminals attached to the ends of the windings are likely to vary from coil component to coil component. According to the above configuration, the terminal can be connected to the board while guiding the position of the terminal by the guide unit. Therefore, it becomes easy to set the position of the terminal at the position corresponding to the board, and the work of connecting the terminal to the board can be performed in a short time.
この発明によれば、製造コストがかさむことを抑制しつつ、伝熱材によって得られるコイルの放熱効果のばらつきを抑制できる。 According to the present invention, it is possible to suppress variations in the heat dissipation effect of the coil obtained by the heat transfer material while suppressing the increase in manufacturing cost.
以下、電気機器を具体介した実施形態について図１〜図８に従って説明する。
図１に示すように、電気機器１０はコイル部品１１を備える。コイル部品１１は、巻線１２からなるコイル１３と、コイル１３が捲回されるボビン１９と、コイル１３に流れる電流によって磁路を形成するコア３０と、カバー４０と、を備える。
Hereinafter, embodiments through electrical devices will be described with reference to FIGS. 1 to 8.
As shown in FIG. 1, the electric device 10 includes a coil component 11. The coil component 11 includes a coil 13 composed of windings 12, a bobbin 19 around which the coil 13 is wound, a core 30 forming a magnetic path by a current flowing through the coil 13, and a cover 40.
ボビン１９は、内側ボビン２０と外側ボビン５０とを備える。内側ボビン２０は、樹脂製であり、断面が楕円形状のボビン軸部２１と、ボビン軸部２１の延びる方向の両端部でボビン軸部２１の延びる方向と直交する方向に延びる外形矩形状の一対のボビン端部２２と、を有する。以下では、ボビン軸部２１の延びる方向を軸方向Ｘといい、ボビン軸部２１の延びる方向と直交する方向のうちの一方向であって図１の上下方向を第１方向Ｙという。また、軸方向Ｘ及び第１方向Ｙの両方向と直交する方向を第２方向Ｚという。 The bobbin 19 includes an inner bobbin 20 and an outer bobbin 50. The inner bobbin 20 is made of resin and has a pair of a bobbin shaft portion 21 having an elliptical cross section and an outer rectangular shape extending in a direction orthogonal to the extending direction of the bobbin shaft portion 21 at both ends in the extending direction of the bobbin shaft portion 21. It has a bobbin end portion 22 of the above. Hereinafter, the extending direction of the bobbin shaft portion 21 is referred to as an axial direction X, and the vertical direction of FIG. 1 which is one of the directions orthogonal to the extending direction of the bobbin shaft portion 21 is referred to as a first direction Y. Further, a direction orthogonal to both the axial direction X and the first direction Y is referred to as a second direction Z.
ボビン軸部２１にはコイル１３が捲回されており、軸方向Ｘにおけるボビン軸部２１の両端部ではコイル１３から巻線１２の端部である巻線端部１２ｒが引き出されている。巻線端部１２ｒには、中央に貫通孔１４ｈを有する円状の端子１４がヒュージング溶接等によって接続されている。 A coil 13 is wound around the bobbin shaft portion 21, and winding end portions 12r, which are ends of the windings 12, are pulled out from the coil 13 at both ends of the bobbin shaft portion 21 in the axial direction X. A circular terminal 14 having a through hole 14h in the center is connected to the winding end portion 12r by fusing welding or the like.
ボビン軸部２１は軸方向Ｘの全体が中空状となっており、一対のボビン端部２２は第１方向Ｙでの中央部分が貫通している。こうしたボビン軸部２１及び一対のボビン端部２２の形状により、内側ボビン２０は、軸方向Ｘに貫通した孔部２０ｈを有している。また、一対のボビン端部２２は、軸方向Ｘの外側において、ボビン軸部２１から離間する方向に突出するボビン突出部２２ａを有する。ボビン突出部２２ａは、一対のボビン端部２２に２つずつ位置している。各ボビン端部２２において、２つのボビン突出部２２ａは、第２方向Ｚで孔部２０ｈを挟んで並ぶように位置している。 The entire bobbin shaft portion 21 is hollow in the axial direction X, and the pair of bobbin end portions 22 penetrate the central portion in the first direction Y. Due to the shapes of the bobbin shaft portion 21 and the pair of bobbin end portions 22, the inner bobbin 20 has a hole portion 20h penetrating in the axial direction X. Further, the pair of bobbin end portions 22 have a bobbin protruding portion 22a that protrudes in a direction away from the bobbin shaft portion 21 on the outside of the axial direction X. Two bobbin protrusions 22a are located at each of the pair of bobbin end portions 22. At each bobbin end portion 22, the two bobbin protrusions 22a are positioned so as to line up with the hole portion 20h in the second direction Z.
コア３０は、第２方向Ｚから見た側面視でＴ字状の一対の第１コア３１を有する。一対の第１コア３１は、マンガン亜鉛フェライト等の磁性材料からなり、断面が楕円形状のコア軸部３２と、コア軸部３２の延びる方向の一方端部で第１方向Ｙに立設する直方体状のコア端部３３と、を有する。コア軸部３２は、ボビン軸部２１の孔部２０ｈと同程度の大きさの同じ外形を有するように形成されている。一対の第１コア３１において、コア軸部３２の延びる方向は軸方向Ｘと一致している。そして、コア軸部３２におけるコア端部３３を有さない側の端部が互いに対向するように、一対の第１コア３１がそれぞれ位置している。一対の第１コア３１は、各コア軸部３２がボビン軸部２１の孔部２０ｈに挿通されることにより、内側ボビン２０に接続されている。なお、図１には図示しないが、ボビン軸部２１の孔部２０ｈでは、一対の第１コア３１の各コア軸部３２の先端同士の間に微小の隙間が生じている。 The core 30 has a pair of first cores 31 that are T-shaped when viewed from the side in the second direction Z. The pair of first cores 31 is a rectangular parallelepiped made of a magnetic material such as manganese-zinc ferrite and standing in the first direction Y at one end of the core shaft portion 32 having an elliptical cross section and the extending direction of the core shaft portion 32. It has a shaped core end 33 and. The core shaft portion 32 is formed so as to have the same outer shape as the hole portion 20h of the bobbin shaft portion 21. In the pair of first cores 31, the extending direction of the core shaft portion 32 coincides with the axial direction X. Then, the pair of first cores 31 are positioned so that the ends of the core shaft portion 32 on the side not having the core end portion 33 face each other. The pair of first cores 31 are connected to the inner bobbin 20 by inserting each core shaft portion 32 into the hole portion 20h of the bobbin shaft portion 21. Although not shown in FIG. 1, in the hole 20h of the bobbin shaft portion 21, a minute gap is formed between the tips of the core shaft portions 32 of the pair of first cores 31.
図２又は図３に示すように、コア端部３３の第１方向Ｙ（図３では上下方向）の大きさは、ボビン端部２２の第１方向Ｙの大きさより大きい。第２方向Ｚ（図３では左右方向）において、コア端部３３の大きさは、第２方向Ｚにおけるボビン端部２２での２つのボビン突出部２２ａの間の距離の大きさと同程度である。電気機器１０において、軸方向Ｘにてボビン端部２２とコア端部３３とが当接するとともに、第２方向Ｚにてボビン突出部２２ａとコア端部３３とが当接している。図１に示すように、内側ボビン２０のうち孔部２０ｈ周りに位置するボビン軸部２１の内周面及びボビン端部２２の内周面に接着剤が塗布されるとともに、孔部２０ｈにコア軸部３２が挿入されるので、内側ボビン２０とコア軸部３２とが接着剤によって接着されている。 As shown in FIG. 2 or 3, the size of the core end portion 33 in the first direction Y (vertical direction in FIG. 3) is larger than the size of the bobbin end portion 22 in the first direction Y. In the second direction Z (horizontal direction in FIG. 3), the size of the core end 33 is about the same as the size of the distance between the two bobbin protrusions 22a at the bobbin end 22 in the second direction Z. .. In the electric device 10, the bobbin end 22 and the core end 33 are in contact with each other in the axial direction X, and the bobbin protrusion 22a and the core end 33 are in contact with each other in the second direction Z. As shown in FIG. 1, an adhesive is applied to the inner peripheral surface of the bobbin shaft portion 21 and the inner peripheral surface of the bobbin end 22 located around the hole 20h of the inner bobbin 20, and the core 20h is covered with an adhesive. Since the shaft portion 32 is inserted, the inner bobbin 20 and the core shaft portion 32 are adhered to each other by an adhesive.
図１及び図２に示すように、コア３０は、直方体状の第２コア３５を有する。第２コア３５は、マンガン亜鉛フェライト等の磁性材料からなる。第２コア３５は、第１方向Ｙにおいてコイル１３及び内側ボビン２０と対向しない側に押圧面としての平坦面３５ａを有する。 As shown in FIGS. 1 and 2, the core 30 has a rectangular parallelepiped second core 35. The second core 35 is made of a magnetic material such as manganese-zinc ferrite. The second core 35 has a flat surface 35a as a pressing surface on a side that does not face the coil 13 and the inner bobbin 20 in the first direction Y.
図１及び図４に示すように、第２コア３５の軸方向Ｘ（図４では左右方向）での大きさは、一方の第１コア３１のコア端部３３の内側ボビン２０とは反対側の端面と、他方の第１コア３１のコア端部３３の内側ボビン２０とは反対側の端面との軸方向Ｘでの距離の大きさと同程度となっている。また、図１及び図３に示すように、第２方向Ｚにおいて、第２コア３５の大きさは、第２方向Ｚにおけるコア端部３３の大きさと同程度である。 As shown in FIGS. 1 and 4, the size of the second core 35 in the axial direction X (left-right direction in FIG. 4) is opposite to the inner bobbin 20 of the core end 33 of one of the first cores 31. The distance between the end face of the first core 31 and the end face of the other first core 31 opposite to the inner bobbin 20 of the core end portion 33 in the axial direction X is about the same. Further, as shown in FIGS. 1 and 3, the size of the second core 35 in the second direction Z is about the same as the size of the core end portion 33 in the second direction Z.
図１に示すように、カバー４０は、軸方向Ｘに長手が延び、第２方向Ｚに短手が延びる矩形平板状の第１カバー部４１と、矩形平板状の第２カバー部４２及び第３カバー部４３を有する。第２カバー部４２は、第２方向Ｚにおける第１カバー部４１の一方の縁部全体から第１方向Ｙに立設した形状を有している。第３カバー部４３は、第２方向Ｚにおける第１カバー部４１の他方の縁部全体から第１方向Ｙに立設した形状を有している。 As shown in FIG. 1, the cover 40 has a rectangular flat plate-shaped first cover portion 41 extending in the axial direction X and a short side extending in the second direction Z, and a rectangular flat plate-shaped second cover portion 42 and a second cover portion. 3 It has a cover portion 43. The second cover portion 42 has a shape erected in the first direction Y from the entire one edge portion of the first cover portion 41 in the second direction Z. The third cover portion 43 has a shape erected in the first direction Y from the entire other edge portion of the first cover portion 41 in the second direction Z.
図１及び図５に示すように、第２方向Ｚ（図５では上下方向）での第２カバー部４２と第３カバー部４３との間の距離の大きさは、第２方向Ｚにおける第２コア３５の大きさと同程度となっている。軸方向Ｘでのカバー４０の大きさは、軸方向Ｘ（図５では左右方向）における第２コア３５の大きさよりも小さい。そして、第２コア３５が第２カバー部４２と第３カバー部４３との間に嵌るように、カバー４０の第１方向Ｙ（図５では紙面に直交する方向）における上部に第２コア３５が位置している。カバー４０の第１カバー部４１及び第２コア３５は、第１方向Ｙにおいてコイル１３と対向する。すなわち、コイル１３の第１方向Ｙにおける一方側の部分が、第１カバー部４１及び第２コア３５によって覆われている。よって、コイル１３のうち、第１方向Ｙにおける他方側の部分と、第２方向Ｚにおける両側の部分とは、第２コア３５によって覆われておらず、第２コア３５から露出している。 As shown in FIGS. 1 and 5, the magnitude of the distance between the second cover portion 42 and the third cover portion 43 in the second direction Z (vertical direction in FIG. 5) is the second in the second direction Z. It is about the same size as the 2-core 35. The size of the cover 40 in the axial direction X is smaller than the size of the second core 35 in the axial direction X (left-right direction in FIG. 5). Then, the second core 35 is placed on the upper portion of the cover 40 in the first direction Y (the direction orthogonal to the paper surface in FIG. 5) so that the second core 35 fits between the second cover portion 42 and the third cover portion 43. Is located. The first cover portion 41 and the second core 35 of the cover 40 face the coil 13 in the first direction Y. That is, one side of the coil 13 in the first direction Y is covered by the first cover portion 41 and the second core 35. Therefore, of the coil 13, the other side portion in the first direction Y and the both side portions in the second direction Z are not covered by the second core 35 and are exposed from the second core 35.
図１に示すように、第１コア３１及び第２コア３５のうち、コア軸部３２がコイル１３内に挿通される内側コアに相当する。第１コア３１及び第２コア３５のうち、コア端部３３及び第２コア３５が、コイル１３への挿通方向である軸方向Ｘにおいて、内側コアとしてのコア軸部３２の一方端部と他方端部とをコイル１３外で繋ぐ外側コアに相当する。また、コア端部３３が、軸方向Ｘにおけるコア軸部３２の両端部から第１方向Ｙでの上方向に延びる一対の第１外側コアに相当する。第２コア３５が、第１方向Ｙの上側でのコイル１３外にて一対のコア端部３３を繋ぐ第２外側コアに相当する。 As shown in FIG. 1, of the first core 31 and the second core 35, the core shaft portion 32 corresponds to the inner core inserted into the coil 13. Of the first core 31 and the second core 35, one end of the core shaft 32 as an inner core and the other in the axial direction X in which the core end 33 and the second core 35 are inserted into the coil 13 It corresponds to the outer core that connects the end portion outside the coil 13. Further, the core end 33 corresponds to a pair of first outer cores extending upward in the first direction Y from both ends of the core shaft 32 in the axial direction X. The second core 35 corresponds to the second outer core connecting the pair of core end portions 33 outside the coil 13 on the upper side in the first direction Y.
図６に示すように、第１方向Ｙ（図６では上下方向）にて第２コア３５と対向しない側の第１カバー部４１の面からは、一対の下部突出部４６が突出している。一対の下部突出部４６のうち、一方の下部突出部４６の軸方向Ｘ（図６では左右方向）外側に位置する端面と、他方の下部突出部４６の軸方向Ｘ外側に位置する端面との間の距離は、軸方向Ｘにおける一対のボビン端部２２間の距離の大きさと同程度である。 As shown in FIG. 6, a pair of lower projecting portions 46 project from the surface of the first cover portion 41 on the side that does not face the second core 35 in the first direction Y (vertical direction in FIG. 6). Of the pair of lower projecting portions 46, an end surface located outside the axial direction X (left-right direction in FIG. 6) of one lower projecting portion 46 and an end surface located outside the axial direction X of the other lower projecting portion 46. The distance between them is about the same as the magnitude of the distance between the pair of bobbin ends 22 in the axial direction X.
また、電気機器１０において、一対の第１コア３１のコア端部３３の第１方向Ｙでの上部には第２コア３５が位置している。第１方向Ｙにおいて、第１コア３１のコア端部３３と第２コア３５とが当接している。第１コア３１のコア端部３３と第２コア３５との当接箇所は瞬間接着剤によって接着されている。さらに、瞬間接着剤硬化後、互いに当接した状態での第１コア３１のコア端部３３と第２コア３５とは、互いの境界部分に第１方向Ｙと直交する方向での外側から接着剤が塗布されることにより接着されている。また、第１方向Ｙにおいて、ボビン端部２２の上部と第１カバー部４１の軸方向Ｘの両端部とが当接している。こうしてボビン端部２２と第１カバー部４１とが当接した状態では、一対のボビン端部２２の軸方向Ｘの内側部分と一対の下部突出部４６の軸方向Ｘの外側部分とが当接している。 Further, in the electric device 10, the second core 35 is located above the core end portions 33 of the pair of first cores 31 in the first direction Y. In the first direction Y, the core end 33 of the first core 31 and the second core 35 are in contact with each other. The contact points between the core end 33 of the first core 31 and the second core 35 are adhered by an instant adhesive. Further, after the instant adhesive is cured, the core end 33 and the second core 35 of the first core 31 in a state of being in contact with each other are adhered to each other's boundary portion from the outside in the direction orthogonal to the first direction Y. It is adhered by applying the agent. Further, in the first direction Y, the upper portion of the bobbin end portion 22 and both ends of the first cover portion 41 in the axial direction X are in contact with each other. In this state, when the bobbin end portion 22 and the first cover portion 41 are in contact with each other, the inner portion of the pair of bobbin end portions 22 in the axial direction X and the outer portion of the pair of lower protrusions 46 in the axial direction X are in contact with each other. ing.
図１及び図２に示すように、外側ボビン５０は、第１方向Ｙに立設する矩形平板状の第１側壁部５１と、軸方向Ｘの第１側壁部５１の両端縁からそれぞれ第２方向Ｚに延びる一対の第２側壁部５２と、を有する。第１側壁部５１の軸方向Ｘにおける大きさであって、一対の第２側壁部５２の対向面間の大きさは、内側ボビン２０の軸方向Ｘにおける一対のボビン端部２２の外側端面間の大きさと同程度である。また、第２側壁部５２は、第１方向Ｙの中間位置に第２方向Ｚの先端縁から切り欠かれた切欠部５２ｈを有する。切欠部５２ｈの形状及び大きさは、内側ボビン２０における各ボビン端部２２の２つのボビン突出部２２ａのうちの一方に第２方向Ｚにおいて嵌め込み可能に設定されている。 As shown in FIGS. 1 and 2, the outer bobbin 50 has a rectangular flat plate-shaped first side wall portion 51 erected in the first direction Y and a second side wall portion 51 from both end edges of the first side wall portion 51 in the axial direction X, respectively. It has a pair of second side wall portions 52 extending in the direction Z. The size of the first side wall portion 51 in the axial direction X, and the size between the facing surfaces of the pair of second side wall portions 52 is the size between the outer end faces of the pair of bobbin end portions 22 in the axial direction X of the inner bobbin 20. It is about the same size as. Further, the second side wall portion 52 has a notched portion 52h cut out from the tip edge of the second direction Z at an intermediate position in the first direction Y. The shape and size of the cutout portion 52h are set so that they can be fitted into one of the two bobbin projecting portions 22a of each bobbin end portion 22 of the inner bobbin 20 in the second direction Z.
図２及び図３に示すように、外側ボビン５０は、第１側壁部５１及び第２側壁部５２の第１方向Ｙでの上部に、ガイド部５３と、拡張部５４と、を有する。ガイド部５３は、第１側壁部５１及び第２側壁部５２の第１方向Ｙでの上部から第２方向Ｚにて第１側壁部５１及び第２側壁部５２から離間する方向に延びる平坦部５３ｂを有する。平坦部５３ｂの軸方向Ｘにおける大きさは第１側壁部５１と同程度である。また、平坦部５３ｂは、第１方向Ｙでの上部から立設するリブ５３ｃを有する。リブ５３ｃは、平坦部５３ｂにおいて、軸方向Ｘに互いに間隔をなして４つ並んで設けられている。４つのリブ５３ｃのうち、軸方向Ｘの両端に位置する２つのリブ５３ｃは、平坦部５３ｂの軸方向Ｘの両端縁から立設している。この２つのリブ５３ｃによって軸方向Ｘの両側から挟まれた平坦部５３ｂの位置に、残りの２つのリブ５３ｃが位置している。 As shown in FIGS. 2 and 3, the outer bobbin 50 has a guide portion 53 and an extension portion 54 at the upper portion of the first side wall portion 51 and the second side wall portion 52 in the first direction Y. The guide portion 53 is a flat portion extending in a direction away from the first side wall portion 51 and the second side wall portion 52 in the second direction Z from the upper portion of the first side wall portion 51 and the second side wall portion 52 in the first direction Y. It has 53b. The size of the flat portion 53b in the axial direction X is about the same as that of the first side wall portion 51. Further, the flat portion 53b has a rib 53c that stands upright from the upper part in the first direction Y. Four ribs 53c are provided side by side in the flat portion 53b at intervals of each other in the axial direction X. Of the four ribs 53c, the two ribs 53c located at both ends in the axial direction X are erected from both ends of the flat portion 53b in the axial direction X. The remaining two ribs 53c are located at positions of the flat portions 53b sandwiched from both sides in the axial direction X by the two ribs 53c.
図２に示すように、拡張部５４は、ガイド部５３の平坦部５３ｂの軸方向Ｘの両側に位置しており、平坦部５３ｂから軸方向Ｘに沿って延びる略円形の平板状をなす本体拡張部５４ａと、本体拡張部５４ａから突出する突出拡張部５４ｂと、を有する。本体拡張部５４ａは、中央部分に位置決め孔５４ｈを有する。一対の本体拡張部５４ａのうち、一方の位置決め孔５４ｈは円孔であり、他方の位置決め孔５４ｈは長円孔である。また、突出拡張部５４ｂは、本体拡張部５４ａの第２方向Ｚの一方側であって、第１側壁部５１からの第２側壁部５２の延設方向と同方向側に位置する。 As shown in FIG. 2, the expansion portion 54 is located on both sides of the flat portion 53b of the guide portion 53 in the axial direction X, and has a substantially circular flat plate shape extending from the flat portion 53b along the axial direction X. It has an expansion portion 54a and a protruding expansion portion 54b protruding from the main body expansion portion 54a. The main body expansion portion 54a has a positioning hole 54h in the central portion. Of the pair of main body expansion portions 54a, one positioning hole 54h is a circular hole, and the other positioning hole 54h is an oval hole. Further, the protruding expansion portion 54b is located on one side of the main body expansion portion 54a in the second direction Z, and is located on the same direction as the extension direction of the second side wall portion 52 from the first side wall portion 51.
外側ボビン５０は、第２側壁部５２の切欠部５２ｈがボビン端部２２のボビン突出部２２ａに嵌め込まれている。外側ボビン５０の第１側壁部５１は、第２方向Ｚにおいてコイル１３と対向する。すなわち、コイル１３の第２方向Ｚにおける一方側の部分が第１側壁部５１によって覆われている。また、拡張部５４の突出拡張部５４ｂは、本体拡張部５４ａからの突出方向の先端が、第２コア３５の軸方向Ｘの両端部であって、第３カバー部４３によって覆われていない第２コア３５の部分に当接する。第２側壁部５２の切欠部５２ｈ及びボビン突出部２２ａを覆うとともに、ボビン突出部２２ａと隣接する第１コア３１のコア端部３３の部分を覆うように、接着剤が塗布されている。これにより、第２側壁部５２がボビン突出部２２ａ及び第１コア３１のコア端部３３に接着されている。また、第３カバー部４３と第１側壁部５１との間に接着剤が塗布されることにより、第３カバー部４３と第１側壁部５１とが接着されて固定されている。 In the outer bobbin 50, the notch 52h of the second side wall portion 52 is fitted into the bobbin protruding portion 22a of the bobbin end portion 22. The first side wall portion 51 of the outer bobbin 50 faces the coil 13 in the second direction Z. That is, one side portion of the coil 13 in the second direction Z is covered with the first side wall portion 51. Further, in the protruding expansion portion 54b of the expansion portion 54, the tips in the protruding direction from the main body expansion portion 54a are both ends of the second core 35 in the axial direction X, and are not covered by the third cover portion 43. It abuts on the portion of the 2 core 35. An adhesive is applied so as to cover the notch 52h of the second side wall 52 and the bobbin protrusion 22a, and also cover the core end 33 of the first core 31 adjacent to the bobbin protrusion 22a. As a result, the second side wall portion 52 is adhered to the bobbin protruding portion 22a and the core end portion 33 of the first core 31. Further, by applying an adhesive between the third cover portion 43 and the first side wall portion 51, the third cover portion 43 and the first side wall portion 51 are adhered and fixed.
また、第１方向Ｙにおけるガイド部５３の平坦部５３ｂの上部には、それぞれで端子１４が接続された２つの巻線端部１２ｒが位置している。２つの巻線端部１２ｒは、平坦部５３ｂの軸方向Ｘの両端部にて２つのリブ５３ｃによってそれぞれ挟まれるように、平坦部５３ｂ上に位置している。ガイド部５３では、リブ５３ｃが形成されない平坦部５３ｂの部分によって第１方向Ｙにおける端子１４の位置をガイドし、リブ５３ｃによって軸方向Ｘにおける端子１４の位置をガイドしている。 Further, two winding end portions 12r to which terminals 14 are connected are located above the flat portion 53b of the guide portion 53 in the first direction Y. The two winding end portions 12r are located on the flat portion 53b so as to be sandwiched by the two ribs 53c at both ends of the flat portion 53b in the axial direction X. In the guide portion 53, the position of the terminal 14 in the first direction Y is guided by the portion of the flat portion 53b on which the rib 53c is not formed, and the position of the terminal 14 in the axial direction X is guided by the rib 53c.
図７に示すように、コイル部品１１は載置部材としてのケース６０に載置される。ケース６０は、アルミニウム等の金属からなり、図示は省略しているが、底壁と、底壁と対向する上壁と、底壁と上壁とを繋ぐ側壁と、を有する形状である。ケース６０は、第１方向Ｙにおけるケース６０の底壁上に載置面６０ａを有する。また、ケース６０は、載置面６０ａ上から第１方向Ｙの上部に向けて盛り上がった盛上り部６０ｂを有する。盛上り部６０ｂは載置面６０ａ上の一部分を略矩形状に囲むように位置している。盛上り部６０ｂによって区画された部分を含む載置面６０ａ上にコイル部品１１が載置されている。 As shown in FIG. 7, the coil component 11 is mounted on the case 60 as a mounting member. The case 60 is made of a metal such as aluminum, and although not shown, it has a shape having a bottom wall, an upper wall facing the bottom wall, and a side wall connecting the bottom wall and the upper wall. The case 60 has a mounting surface 60a on the bottom wall of the case 60 in the first direction Y. Further, the case 60 has a raised portion 60b that rises from the mounting surface 60a toward the upper part in the first direction Y. The raised portion 60b is located so as to surround a part of the mounting surface 60a in a substantially rectangular shape. The coil component 11 is mounted on the mounting surface 60a including the portion partitioned by the raised portion 60b.
ケース６０は、載置面６０ａ上の盛上り部６０ｂから突出する一対の位置決めピン６１を備える。一対の位置決めピン６１は、外側ボビン５０における一対の本体拡張部５４ａの位置決め孔５４ｈにそれぞれ挿通されている。一対の本体拡張部５４ａのうち一方の位置決め孔５４ｈは円孔となっており、他方の位置決め孔５４ｈは長円孔となっているため、両方の位置決め孔５４ｈが円孔である場合と比べて、位置決め孔５４ｈへの位置決めピン６１の挿通性がよい。コイル部品１１は、本体拡張部５４ａの位置決め孔５４ｈにケース６０の位置決めピン６１が挿通された状態でケース６０の載置面６０ａに載置されている。 The case 60 includes a pair of positioning pins 61 protruding from the raised portion 60b on the mounting surface 60a. The pair of positioning pins 61 are inserted into the positioning holes 54h of the pair of main body expansion portions 54a in the outer bobbin 50, respectively. Since one of the positioning holes 54h of the pair of main body expansion portions 54a is a circular hole and the other positioning hole 54h is an oval hole, as compared with the case where both positioning holes 54h are circular holes. , The positioning pin 61 has good insertability into the positioning hole 54h. The coil component 11 is placed on the mounting surface 60a of the case 60 in a state where the positioning pin 61 of the case 60 is inserted into the positioning hole 54h of the main body expansion portion 54a.
図７及び図８に示すように、コイル部品１１のコイル１３のうち、第２コア３５から露出している露出部としての第１方向Ｙ（図７では紙面に直交する方向、図８では上下方向）の下部が、ケース６０の載置面６０ａのうち、盛上り部６０ｂで区画された部分に対向している。そして、このコイル１３の第１方向Ｙの下部が伝熱材Ｈの上部に位置している。コイル部品１１は、ケース６０の載置面６０ａのうち、盛上り部６０ｂで区画された部分の所定の位置に伝熱材Ｈが設けられた後に、第１方向Ｙの上部から載置面６０ａ上に載置される。本実施形態では、伝熱材Ｈとしてパテ状のシリコンゴムを採用しており、伝熱材Ｈが載置面６０ａ上に塗布されることで伝熱材Ｈが載置面６０ａに設けられている。そして、上記露出部としてのコイル１３の部分が伝熱材Ｈを押圧しながら、コイル部品１１が盛上り部６０ｂで区画された部分の載置面６０ａ上に載置されることにより、上記露出部としてのコイル１３の部分が伝熱材Ｈに接触した状態となる。 As shown in FIGS. 7 and 8, among the coils 13 of the coil component 11, the first direction Y as an exposed portion exposed from the second core 35 (direction orthogonal to the paper surface in FIG. 7, up and down in FIG. 8). The lower part of the direction) faces the portion of the mounting surface 60a of the case 60 that is partitioned by the raised portion 60b. The lower part of the coil 13 in the first direction Y is located above the heat transfer material H. The coil component 11 has the mounting surface 60a from the upper part of the first direction Y after the heat transfer material H is provided at a predetermined position in the portion of the mounting surface 60a of the case 60 that is partitioned by the raised portion 60b. Placed on top. In this embodiment, putty-like silicon rubber is used as the heat transfer material H, and the heat transfer material H is provided on the mounting surface 60a by applying the heat transfer material H on the mounting surface 60a. There is. Then, while the portion of the coil 13 as the exposed portion presses the heat transfer material H, the coil component 11 is placed on the mounting surface 60a of the portion partitioned by the raised portion 60b, whereby the exposed portion is exposed. The portion of the coil 13 as a portion is in contact with the heat transfer material H.
図８に示すように、ケース６０は、載置面６０ａ上での盛上り部６０ｂから第１方向Ｙの上部に向けて突出するケース軸部６２と、ケース軸部６２における第１方向Ｙの上部に取り付けられた板ばね部６３と、を有する。ケース軸部６２は略円柱状であってその第１方向Ｙの上端部にねじ穴が形成された形状である。また、ケース軸部６２の第１方向Ｙの上部に板ばね部６３の孔部６３ｈが配置され、第１方向Ｙの上側から板ばね部６３の孔部６３ｈ及びケース軸部６２のねじ穴がねじ止めされることにより、板ばね部６３がケース軸部６２に取り付けられている。板ばね部６３は第１方向Ｙの第２コア３５の上部に対向している。第２コア３５の平坦面３５ａ上には、熱伝導率の高い性質を有する銅等の金属からなる放熱板６５が載置されている。第１方向Ｙにおいて、放熱板６５は板ばね部６３と第２コア３５との間に挟まれている。 As shown in FIG. 8, the case 60 has a case shaft portion 62 protruding from the raised portion 60b on the mounting surface 60a toward the upper part of the first direction Y, and a case shaft portion 62 having a first direction Y on the case shaft portion 62. It has a leaf spring portion 63 attached to the upper portion. The case shaft portion 62 has a substantially columnar shape and has a shape in which a screw hole is formed at the upper end portion in the first direction Y. Further, the hole portion 63h of the leaf spring portion 63 is arranged above the case shaft portion 62 in the first direction Y, and the hole portion 63h of the leaf spring portion 63 and the screw hole of the case shaft portion 62 are provided from above the first direction Y. The leaf spring portion 63 is attached to the case shaft portion 62 by being screwed. The leaf spring portion 63 faces the upper portion of the second core 35 in the first direction Y. On the flat surface 35a of the second core 35, a heat radiating plate 65 made of a metal such as copper having a property of high thermal conductivity is placed. In the first direction Y, the heat radiating plate 65 is sandwiched between the leaf spring portion 63 and the second core 35.
ケース６０の載置面６０ａにコイル部品１１が載置された後、板ばね部６３がケース軸部６２に取り付けられることにより、板ばね部６３が第２コア３５の平坦面３５ａ上の放熱板６５に当接し、第２コア３５の平坦面３５ａが放熱板６５を介して板ばね部６３によって押圧される。すなわち、ケース軸部６２及び板ばね部６３が、放熱板６５を介して第２コア３５の平坦面３５ａをケース６０の載置面６０ａに向かって押圧する押圧部材として機能する。また、ケース軸部６２及び板ばね部６３は、放熱板６５を第２コア３５の平坦面３５ａに押し付けている。 After the coil component 11 is mounted on the mounting surface 60a of the case 60, the leaf spring portion 63 is attached to the case shaft portion 62, so that the leaf spring portion 63 is a heat radiating plate on the flat surface 35a of the second core 35. It comes into contact with 65, and the flat surface 35a of the second core 35 is pressed by the leaf spring portion 63 via the heat radiating plate 65. That is, the case shaft portion 62 and the leaf spring portion 63 function as pressing members that press the flat surface 35a of the second core 35 toward the mounting surface 60a of the case 60 via the heat radiating plate 65. Further, the case shaft portion 62 and the leaf spring portion 63 press the heat radiating plate 65 against the flat surface 35a of the second core 35.
図７に示すように、電気機器１０は、ケース６０の載置面６０ａの第１方向Ｙの上部に基板１５を備える。基板１５は、載置面６０ａと平行をなすように延びており、ケース６０の内部に位置している。また、基板１５は第１方向Ｙにて貫通する開口部１５ｈを有する。本実施形態では基板１５の開口部１５ｈの大きさは、ケース６０の載置面６０ａ上での盛上り部６０ｂの外形よりも一回り大きい。基板１５の開口部１５ｈによる開口面が、ケース６０の載置面６０ａのうち、盛上り部６０ｂによって区画された部分と盛上り部６０ｂの形成部分とに対向する。コイル部品１１や板ばね部６３の組付けは基板１５の配置後に行われる。そして、ケース６０の載置面６０ａにコイル部品１１が載置されると、第１方向Ｙにおいて、コイル部品１１の上部の一部が基板１５の開口部１５ｈから上部に突出した状態となる。図３に示すように、コイル部品１１におけるガイド部５３の平坦部５３ｂが、基板１５よりも第１方向Ｙの上部に位置している。 As shown in FIG. 7, the electric device 10 includes a substrate 15 above the mounting surface 60a of the case 60 in the first direction Y. The substrate 15 extends so as to be parallel to the mounting surface 60a and is located inside the case 60. Further, the substrate 15 has an opening 15h penetrating in the first direction Y. In the present embodiment, the size of the opening 15h of the substrate 15 is one size larger than the outer shape of the raised portion 60b on the mounting surface 60a of the case 60. The opening surface of the substrate 15 by the opening portion 15h faces the portion of the mounting surface 60a of the case 60 that is partitioned by the raised portion 60b and the formed portion of the raised portion 60b. The coil component 11 and the leaf spring portion 63 are assembled after the substrate 15 is arranged. When the coil component 11 is mounted on the mounting surface 60a of the case 60, a part of the upper part of the coil component 11 protrudes upward from the opening 15h of the substrate 15 in the first direction Y. As shown in FIG. 3, the flat portion 53b of the guide portion 53 in the coil component 11 is located above the substrate 15 in the first direction Y.
図３及び図５に示すように、基板１５から第１方向Ｙの上部に突出したボス１６の先端には端子台が設けられ、この端子台とコイル部品１１の端子１４とが第１方向Ｙで対向している。ボス１６にねじ込み可能なねじ１７が端子１４の貫通孔１４ｈに挿通されている。ボス１６とねじ１７とで端子１４を挟んだ状態で、ねじ１７をボス１６にねじ込むことにより、端子１４がボス１６に圧着され、端子１４と端子台が導通されて、端子１４を介してコイル１３が基板１５に形成された回路に接続されている。 As shown in FIGS. 3 and 5, a terminal block is provided at the tip of the boss 16 projecting from the substrate 15 to the upper part in the first direction Y, and the terminal block and the terminal 14 of the coil component 11 are connected to each other in the first direction Y. Are facing each other. A screw 17 screwable into the boss 16 is inserted into the through hole 14h of the terminal 14. By screwing the screw 17 into the boss 16 with the terminal 14 sandwiched between the boss 16 and the screw 17, the terminal 14 is crimped to the boss 16, the terminal 14 and the terminal block are conducted, and the coil is passed through the terminal 14. 13 is connected to a circuit formed on the substrate 15.
なお、端子１４のボス１６への圧着作業は、作業者によって巻線端部１２ｒ及び端子１４をガイド部５３の平坦部５３ｂ上に押し付けながら行われる。これによって、端子１４がガイド部５３のリブ５３ｃによってガイドされ、端子１４の位置が基板１５のボス１６に対応する位置に設定されると同時に回り止めにもなる。 The crimping work of the terminal 14 to the boss 16 is performed while the operator presses the winding end portion 12r and the terminal 14 onto the flat portion 53b of the guide portion 53. As a result, the terminal 14 is guided by the rib 53c of the guide portion 53, the position of the terminal 14 is set to the position corresponding to the boss 16 of the substrate 15, and at the same time, the rotation is stopped.
次に、本実施形態の作用について説明する。
ケース６０にコイル部品１１を載置させる際には、コイル部品１１の本体拡張部５４ａの位置決め孔５４ｈをケース６０の一対の位置決めピン６１に挿通する。コイル部品１１は、ケース６０の位置決めピン６１によって既定位置に位置決めされた状態でケース６０の載置面６０ａ上に載置される。そのため、コイル部品１１のコイル１３も、載置面６０ａにおける既定範囲に対向するように位置決めされた状態となる。本実施形態では、コイル１３が対向する載置面６０ａの上記既定範囲にあらかじめ伝熱材Ｈを設けている。そのため、載置面６０ａ上にコイル部品１１を載置させることで、コイル１３と伝熱材Ｈとが対向する。また、コイル１３における第１方向Ｙの下部の大きさと対応する範囲に伝熱材Ｈを設けることができる。
Next, the operation of this embodiment will be described.
When the coil component 11 is placed on the case 60, the positioning hole 54h of the main body expansion portion 54a of the coil component 11 is inserted into the pair of positioning pins 61 of the case 60. The coil component 11 is placed on the mounting surface 60a of the case 60 in a state of being positioned at a predetermined position by the positioning pin 61 of the case 60. Therefore, the coil 13 of the coil component 11 is also positioned so as to face the predetermined range on the mounting surface 60a. In the present embodiment, the heat transfer material H is provided in advance in the predetermined range of the mounting surface 60a on which the coil 13 faces. Therefore, by mounting the coil component 11 on the mounting surface 60a, the coil 13 and the heat transfer material H face each other. Further, the heat transfer material H can be provided in a range corresponding to the size of the lower portion of the coil 13 in the first direction Y.
ケース６０の載置面６０ａ上に設けられた伝熱材Ｈにコイル１３が接触している。そのため、電気機器１０の使用に伴ってコイル１３にて生じた熱が伝熱材Ｈに伝わる。伝熱材Ｈに伝わった熱は、伝熱材Ｈからケース６０に放出される。こうして伝熱材Ｈを介して、コイル１３からケース６０への放熱が行われる。 The coil 13 is in contact with the heat transfer material H provided on the mounting surface 60a of the case 60. Therefore, the heat generated in the coil 13 with the use of the electric device 10 is transferred to the heat transfer material H. The heat transferred to the heat transfer material H is released from the heat transfer material H to the case 60. In this way, heat is dissipated from the coil 13 to the case 60 via the heat transfer material H.
本実施形態では以下の効果を得ることができる。
（１）コイル部品１１の本体拡張部５４ａの位置決め孔５４ｈをケース６０の一対の位置決めピン６１に挿通することによって、ケース６０にコイル部品１１を載置させる作業を行っている。そのため、ケース６０にコイル部品１１を載置させる作業の都度で、載置面６０ａ上でのコイル部品１１の位置にばらつきが生じにくくなる。そして、コイル１３における第１方向Ｙの下部が載置面６０ａ上の伝熱材Ｈの位置からずれることによるコイル部品１１の放熱効果の低下を抑制できる。したがって、伝熱材Ｈの位置ずれに起因する伝熱材Ｈによるコイル１３の放熱効果のばらつきを抑制できる。また、コイル１３が対向する載置面６０ａの範囲に伝熱材Ｈを設けることができるため、コイル１３の第１方向Ｙの下部の大きさよりも大きな範囲まで余分に伝熱材Ｈを設ける必要がなくなり、電気機器１０の製造にかかる製造コストがかさむことを抑制できる。
In this embodiment, the following effects can be obtained.
(1) By inserting the positioning hole 54h of the main body expansion portion 54a of the coil component 11 into the pair of positioning pins 61 of the case 60, the coil component 11 is placed on the case 60. Therefore, the position of the coil component 11 on the mounting surface 60a is less likely to vary each time the coil component 11 is mounted on the case 60. Then, it is possible to suppress a decrease in the heat dissipation effect of the coil component 11 due to the lower portion of the coil 13 in the first direction Y being displaced from the position of the heat transfer material H on the mounting surface 60a. Therefore, it is possible to suppress variations in the heat dissipation effect of the coil 13 due to the heat transfer material H due to the displacement of the heat transfer material H. Further, since the heat transfer material H can be provided in the range of the mounting surface 60a on which the coil 13 faces, it is necessary to provide the heat transfer material H in a range larger than the size of the lower part of the first direction Y of the coil 13. It is possible to prevent the manufacturing cost of the electric device 10 from increasing.
（２）ケース軸部６２及び板ばね部６３によって、第２コア３５の平坦面３５ａがケース６０の載置面６０ａに向かって押圧されている。そのため、電気機器１０に振動が生じても、コイル部品１１がケース６０の載置面６０ａから離れにくくなる。したがって、コイル部品１１がケース６０に強く当接することによるコイル部品１１の変形を抑制できる。 (2) The flat surface 35a of the second core 35 is pressed toward the mounting surface 60a of the case 60 by the case shaft portion 62 and the leaf spring portion 63. Therefore, even if the electric device 10 vibrates, the coil component 11 is difficult to separate from the mounting surface 60a of the case 60. Therefore, the deformation of the coil component 11 due to the coil component 11 coming into strong contact with the case 60 can be suppressed.
（３）ケース軸部６２及び板ばね部６３によって、第２コア３５の平坦面３５ａに放熱板６５が押し付けられている。そのため、電気機器１０の使用に伴ってコア３０にて生じた熱が第２コア３５から放熱板６５に伝わる。放熱板６５に伝わった熱は、放熱板６５から大気中に放出される。したがって、放熱板６５によってコア３０からの放熱を行うことができる。 (3) The heat radiating plate 65 is pressed against the flat surface 35a of the second core 35 by the case shaft portion 62 and the leaf spring portion 63. Therefore, the heat generated in the core 30 due to the use of the electric device 10 is transferred from the second core 35 to the heat radiating plate 65. The heat transferred to the heat radiating plate 65 is released from the heat radiating plate 65 into the atmosphere. Therefore, the heat radiating plate 65 can dissipate heat from the core 30.
（４）コイル１３から引き出された巻線端部１２ｒの長さや湾曲程度はコイル部品１１ごとでばらつきが生じやすい。そのため、巻線端部１２ｒに取り付けられている端子１４の位置もコイル部品１１ごとでばらつきが生じやすい。上記実施形態によれば、ガイド部５３によって端子１４の位置をガイドしながら、ボス１６への端子１４の圧着作業を行っている。したがって、ボス１６に対応する位置に端子１４の位置を設定しやすくなり、ボス１６への端子１４の圧着作業を短時間で行うことができる。 (4) The length and the degree of curvature of the winding end portion 12r drawn out from the coil 13 are likely to vary from coil component 11 to coil component 11. Therefore, the position of the terminal 14 attached to the winding end portion 12r is likely to vary from coil component to coil component 11. According to the above embodiment, the terminal 14 is crimped to the boss 16 while guiding the position of the terminal 14 by the guide portion 53. Therefore, it becomes easy to set the position of the terminal 14 at the position corresponding to the boss 16, and the crimping operation of the terminal 14 to the boss 16 can be performed in a short time.
（５）コイル１３を構成する巻線１２が細いほど、コイル部品１１を小型化できる。しかしながら、コイル１３を構成する巻線１２が細いほど、コイル１３にて生じる熱が高くなる傾向がある。上記実施形態によれば、コイル部品１１の外側ボビン５０における位置決め孔５４ｈとケース６０の位置決めピン６１とによる位置決めによって、載置面６０ａ上の伝熱材Ｈにコイル１３が接触した状態となっている。そのため、伝熱材Ｈによるコイル１３からの放熱を行う分だけ、コイル１３に細い巻線１２を採用できる。したがって、コイル１３に細い巻線１２を採用することで、コイル１３に太い巻線１２を採用する場合と比較して、コイル部品１１を小型化できる。 (5) The thinner the winding 12 constituting the coil 13, the smaller the coil component 11 can be made. However, the thinner the windings 12 constituting the coil 13, the higher the heat generated by the coil 13. According to the above embodiment, the coil 13 is in contact with the heat transfer material H on the mounting surface 60a due to the positioning by the positioning hole 54h in the outer bobbin 50 of the coil component 11 and the positioning pin 61 of the case 60. There is. Therefore, a thin winding 12 can be adopted for the coil 13 as much as the heat transfer material H dissipates heat from the coil 13. Therefore, by adopting the thin winding 12 for the coil 13, the coil component 11 can be miniaturized as compared with the case where the thick winding 12 is adopted for the coil 13.
なお、上記実施形態は、以下のように変更して実施することができる。上記実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。 The above embodiment can be modified and implemented as follows. The above-described embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
○ コア３０にて高熱が生じにくい場合等、コア３０の放熱対策を省略可能な場合には、放熱板６５を省略してもよい。
○ 第２コア３５の上面は、ケース軸部６２及び板ばね部６３によって押圧可能な押圧面として機能可能であれば、平坦面ではなく湾曲した面であってもよい。
○ If the heat dissipation measures of the core 30 can be omitted, such as when high heat is unlikely to be generated in the core 30, the heat dissipation plate 65 may be omitted.
○ The upper surface of the second core 35 may be a curved surface instead of a flat surface as long as it can function as a pressing surface that can be pressed by the case shaft portion 62 and the leaf spring portion 63.
○ 高い弾性を有するシート状伝熱材を伝熱材Ｈとして採用してもよい。この変更例では、ケース６０の載置面６０ａに伝熱材Ｈを載せることで載置面６０ａの規定位置に伝熱材Ｈを設ける。なお、伝熱材Ｈの弾性によっては、ケース６０にコイル部品１１を載置させる際に、伝熱材Ｈからコイル１３に載置面６０ａから離れる方向の反力が作用する。そのため、ケース６０の載置面６０ａ上にコイル部品１１を載置させただけでは、コイル１３の第１方向Ｙの下部が部分的に伝熱材Ｈと接触しない状態となるおそれがある。こうした場合でも、上記実施形態でのケース軸部６２及び板ばね部６３によってコイル部品１１を載置面６０ａに向けて押さえつけることにより、コイル１３の当接によって伝熱材Ｈが変形して、コイル１３の第１方向Ｙの下部の全体を伝熱材Ｈと接触させることができる。 ○ A sheet-shaped heat transfer material having high elasticity may be adopted as the heat transfer material H. In this modified example, the heat transfer material H is placed on the mounting surface 60a of the case 60 to provide the heat transfer material H at a specified position on the mounting surface 60a. Depending on the elasticity of the heat transfer material H, when the coil component 11 is placed on the case 60, a reaction force acts from the heat transfer material H on the coil 13 in a direction away from the mounting surface 60a. Therefore, if the coil component 11 is simply placed on the mounting surface 60a of the case 60, the lower portion of the coil 13 in the first direction Y may not partially come into contact with the heat transfer material H. Even in such a case, by pressing the coil component 11 toward the mounting surface 60a by the case shaft portion 62 and the leaf spring portion 63 in the above embodiment, the heat transfer material H is deformed by the contact of the coil 13, and the coil The entire lower part of the first direction Y of 13 can be brought into contact with the heat transfer material H.
○ 第１コア３１のコア端部３３の第１方向Ｙ下側の端面等、コイル部品１１のうちでケース６０に当接する部分と、その部分に対応するケース６０の載置面６０ａ上の部分と、を接着剤によって接着するようにしてもよい。こうした接着によって、コイル部品１１の振動が十分に抑制できるなら、ケース軸部６２及び板ばね部６３を省略してもよい。 ○ A portion of the coil component 11 that comes into contact with the case 60, such as the end surface of the core end 33 of the first core 31 on the lower side in the first direction Y, and a portion on the mounting surface 60a of the case 60 corresponding to that portion. And may be adhered with an adhesive. If the vibration of the coil component 11 can be sufficiently suppressed by such adhesion, the case shaft portion 62 and the leaf spring portion 63 may be omitted.
○ 外側ボビン５０に拡張部５４とは異なる形状の部位を形成するとともに、その部位に位置決め孔５４ｈを形成してもよい。また、位置決め孔５４ｈは、コア端部３３や第２コア３５等、コア３０に形成させてもよい。 ○ A portion having a shape different from that of the expansion portion 54 may be formed on the outer bobbin 50, and a positioning hole 54h may be formed at that portion. Further, the positioning hole 54h may be formed in the core 30 such as the core end 33 and the second core 35.
○ ケース６０での位置決めピン６１の数とコイル部品１１での位置決め孔５４ｈの数とは、１つずつであってもよいし３つ以上であってもよい。
○ コイル部品１１を載置させる載置部材はケース６０のような形状に限らず、例えば載置面６０ａに沿って延びる板状であってもよい。
The number of positioning pins 61 in the case 60 and the number of positioning holes 54h in the coil component 11 may be one or three or more.
○ The mounting member on which the coil component 11 is mounted is not limited to the shape of the case 60, and may be, for example, a plate shape extending along the mounting surface 60a.
○ 端子１４の接続先である基板１５のボス１６の位置に応じて、外側ボビン５０に形成されるガイド部５３の形状は変更可能である。例えば、２つのボス１６が基板１５において第１方向Ｙで異なる位置に設けられている場合では、ガイド部５３における一方の端子１４をガイドする平坦部５３ｂの部分と、他方の端子１４をガイドする平坦部５３ｂの部分とが、第１方向Ｙで異なる位置で延びる形状とする。また、基板１５における２つのボス１６の軸方向Ｘでの間隔の大きさに対応するように、ガイド部５３における一方の端子１４をガイドする平坦部５３ｂの部分と、他方の端子１４をガイドする平坦部５３ｂの部分との軸方向Ｘでの間隔の大きさを設定する。 The shape of the guide portion 53 formed on the outer bobbin 50 can be changed according to the position of the boss 16 of the substrate 15 to which the terminal 14 is connected. For example, when the two bosses 16 are provided at different positions on the substrate 15 in the first direction Y, the flat portion 53b that guides one terminal 14 and the other terminal 14 of the guide portion 53 are guided. The shape is such that the portion of the flat portion 53b extends at a different position in the first direction Y. Further, the flat portion 53b that guides one terminal 14 of the guide portion 53 and the other terminal 14 are guided so as to correspond to the size of the distance between the two bosses 16 on the substrate 15 in the axial direction X. The size of the distance between the flat portion 53b and the portion in the axial direction X is set.
○ 外側ボビン５０のガイド部５３のリブ５３ｃを省略してもよい。また、外側ボビン５０からガイド部５３を省略してもよい。
○ コイル部品１１を構成する各部材は、一体部材に適宜変更可能である。例えば、内側ボビン２０と外側ボビン５０とを一体部材としたり、第１コア３１と第２コア３５とを一体部材としたりすることが可能である。また、上記実施形態で一体となっていたコイル部品１１を構成する各部材を別体の部材に適宜変更してもよい。
○ The rib 53c of the guide portion 53 of the outer bobbin 50 may be omitted. Further, the guide portion 53 may be omitted from the outer bobbin 50.
○ Each member constituting the coil component 11 can be appropriately changed to an integral member. For example, the inner bobbin 20 and the outer bobbin 50 can be an integral member, or the first core 31 and the second core 35 can be an integral member. Further, each member constituting the coil component 11 integrated in the above embodiment may be appropriately changed to a separate member.
○ ボビン１９、コア３０、及びカバー４０において、互いの当接態様や接着態様は適宜変更可能である。 ○ In the bobbin 19, the core 30, and the cover 40, the contact mode and the bonding mode with each other can be changed as appropriate.
Ｈ…伝熱材、１０…電気機器、１１…コイル部品、１２…巻線、１２ｒ…巻線端部、１３…コイル、１４…端子、１５…基板、１９…ボビン、２０…内側ボビン、３０…コア、３１…第１コア、３２…コア軸部、３３…コア端部、３５…第２コア、３５ａ…平坦面、５０…外側ボビン、５３…ガイド部、５４…拡張部、５４ｈ…位置決め孔、６０…ケース、６０ａ…載置面、６１…位置決めピン、６２…ケース軸部、６３…板ばね部、６５…放熱板。 H ... Heat transfer material, 10 ... Electrical equipment, 11 ... Coil parts, 12 ... Winding, 12r ... Winding end, 13 ... Coil, 14 ... Terminal, 15 ... Board, 19 ... Bobbin, 20 ... Inner bobbin, 30 ... Core, 31 ... 1st core, 32 ... Core shaft, 33 ... Core end, 35 ... 2nd core, 35a ... Flat surface, 50 ... Outer bobbin, 53 ... Guide, 54 ... Expansion, 54h ... Positioning Hole, 60 ... Case, 60a ... Mounting surface, 61 ... Positioning pin, 62 ... Case shaft, 63 ... Leaf spring, 65 ... Heat dissipation plate.
Claims (4)
前記コイルは、前記コイルから引き出された巻線の端部に接続された端子を介して基板に接続されており、
前記コアは、前記コイル内に挿通される内側コアと、前記コイルへの挿通方向における前記内側コアの一方端部と他方端部とを前記コイル外で繋ぐ外側コアと、を有し、
前記コイルは、前記載置部材における前記コイル部品が載置される載置面に対向するとともに前記外側コアから露出する露出部を有し、
前記ボビン及び前記コアの一方は位置決め孔を有し、
前記載置部材は、前記載置面上に設けられた伝熱材と、前記載置面上から突出する位置決めピンと、を有し、
前記コイル部品は、前記位置決め孔に前記位置決めピンが挿通された状態で前記露出部が前記伝熱材に接触して前記載置面に載置されている電気機器。 An electric device in which a coil component including a coil wound around a bobbin and a core forming a magnetic path by a current flowing through the coil is mounted on a mounting member.
The coil is connected to the substrate via a terminal connected to the end of the winding drawn from the coil.
The core has an inner core inserted into the coil and an outer core connecting one end and the other end of the inner core in the insertion direction into the coil outside the coil.
The coil has an exposed portion that faces the mounting surface on which the coil component is mounted in the above-described mounting member and is exposed from the outer core.
One of the bobbin and the core has a positioning hole and has a positioning hole.
The pre-described mounting member includes a heat transfer material provided on the pre-described mounting surface and a positioning pin protruding from the previously described mounting surface.
The coil component is an electric device in which the exposed portion comes into contact with the heat transfer material and is placed on the above-mentioned mounting surface in a state where the positioning pin is inserted into the positioning hole.
前記第２外側コアは、前記コイルと対向しない側に押圧面を有し、
前記載置部材は、前記押圧面を前記載置面に向かって押圧する押圧部材を有する請求項１に記載の電気機器。 The outer core includes a pair of first outer cores extending from both ends of the inner core in the insertion direction of the inner core into the coil in a direction orthogonal to the above-described mounting surface and away from the exposed portion, and a front. It has a second outer core that connects a pair of the first outer cores on the side opposite to the exposed portion in a direction orthogonal to the description surface.
The second outer core has a pressing surface on a side that does not face the coil.
The electrical device according to claim 1, wherein the pre-described mounting member has a pressing member that presses the pressing surface toward the pre-described mounting surface.
前記平坦面上に放熱板が載置されており、
前記押圧部材は、前記放熱板を介して前記平坦面を押圧する請求項２に記載の電気機器。 The pressing surface is a flat surface extending in the extending direction of the above-mentioned mounting surface.
A heat radiating plate is placed on the flat surface.
The electric device according to claim 2, wherein the pressing member presses the flat surface through the heat radiating plate.
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