JP2014204032A - Coil device - Google Patents
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- JP2014204032A JP2014204032A JP2013080584A JP2013080584A JP2014204032A JP 2014204032 A JP2014204032 A JP 2014204032A JP 2013080584 A JP2013080584 A JP 2013080584A JP 2013080584 A JP2013080584 A JP 2013080584A JP 2014204032 A JP2014204032 A JP 2014204032A
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Abstract
Description
本発明は、プリント配線板に搭載され、トランスまたはチョークコイルとして機能するコイル装置に関する。 The present invention relates to a coil device that is mounted on a printed wiring board and functions as a transformer or a choke coil.
プリント配線板に搭載されるコイル装置は、一般に、プリント配線板に貫通穴を設け、貫通穴を取り囲むようにしてコイルパターンを形成し、分割されたコア部材をプリント配線板の表裏両側から挟み込むことによって構成される。 A coil device mounted on a printed wiring board generally has a through hole in the printed wiring board, a coil pattern is formed so as to surround the through hole, and the divided core members are sandwiched from both the front and back sides of the printed wiring board. Consists of.
従来のコイル装置（例えば、特許文献１）は、分割されたコア部材をプリント配線板に取り付けるために、例えば、プリント配線板に形成されているコイルパターン部に、プリント配線板の表裏両側からコア固定金具を用いて、一対のコア部材を前記コイルパターン部の貫通穴に挟み込むように構成される。 In order to attach a divided core member to a printed wiring board, for example, a conventional coil device (for example, Patent Document 1) has a core from both the front and back sides of the printed wiring board on a coil pattern portion formed on the printed wiring board. A pair of core members are configured to be sandwiched between the through holes of the coil pattern portion using a fixing metal fitting.
しかしながら、コア固定金具は、プリント配線板の端部からコア部材を挟み込むように構成されているため、コイル装置は、必ずプリント配線板の端部付近に配置しなければならない。そのため、コイル装置とプリント配線板上に実装する電子部品の配置の自由度を妨げるという問題がある。 However, since the core fixing bracket is configured so as to sandwich the core member from the end portion of the printed wiring board, the coil device must be disposed in the vicinity of the end portion of the printed wiring board. Therefore, there exists a problem of hindering the freedom degree of arrangement | positioning of the electronic component mounted on a coil apparatus and a printed wiring board.
また、コア固定金具を二分してプリント基板の表裏両側から挟み込む場合、プリント配線板の貫通穴にコア部材およびコア固定金具の両方を挿入する必要がある。そのため、コア部材より大きな貫通穴を形成する必要があり、プリント配線板の大型化を招く。 In addition, when the core fixing bracket is divided into two from both the front and back sides of the printed board, it is necessary to insert both the core member and the core fixing bracket into the through hole of the printed wiring board. Therefore, it is necessary to form a larger through hole than the core member, which leads to an increase in the size of the printed wiring board.
従来の他のコイル装置（例えば、特許文献４）は、コア部材の中心に位置するコア脚にコア穴を設け、該コア穴に締結具を挿入してコア部材をプリント配線板に固定するように構成される。 In another conventional coil device (for example, Patent Document 4), a core hole is provided in a core leg located at the center of the core member, and a fastener is inserted into the core hole to fix the core member to the printed wiring board. Configured.
しかしながら、コア部材の中心脚にコア穴を設けた場合、中心脚外周に巻回されるコイルパターンの面積も大きくなるため、コイル装置の大型化を招く。 However, when the core hole is provided in the central leg of the core member, the area of the coil pattern wound around the outer periphery of the central leg is increased, resulting in an increase in the size of the coil device.
本発明の目的は、上記のような問題点を解決するため、コイルパターンの小型化が図られ、組み立てが容易で、製造コストを低減できるコイル装置を提供することである。 SUMMARY OF THE INVENTION An object of the present invention is to provide a coil device in which the coil pattern can be reduced in size, easy to assemble, and the manufacturing cost can be reduced in order to solve the above problems.
上記目的を達成するために、本発明に係るコイル装置は、プリント配線板に配置されたコイルパターンと、
プリント配線板の両面に配置され、該コイルパターンと電磁結合する一対のコア部材と、
各コア部材に形成されたコア穴に挿入された状態で、コア部材を連結してプリント配線板に固定するための連結部材とを備え、
連結部材は、コイルパターンの外側でプリント配線板を貫通するように設置されることを特徴とする。
In order to achieve the above object, a coil device according to the present invention includes a coil pattern disposed on a printed wiring board,
A pair of core members disposed on both sides of the printed wiring board and electromagnetically coupled to the coil pattern;
In a state inserted in the core hole formed in each core member, comprising a connecting member for connecting the core member and fixing to the printed wiring board,
The connecting member is installed so as to penetrate the printed wiring board outside the coil pattern.
また本発明に係るコイル装置は、プリント配線板に配置されたコイルパターンと、
プリント配線板の両面に配置され、該コイルパターンと電磁結合する一対のコア部材と、
各コア部材に形成されたコア穴に挿入された状態で、コア部材を連結してプリント配線板に固定するための連結部材とを備え、
連結部材は、プリント配線板の端部を迂回してプリント配線板を挟持するように設置されることを特徴とする。
A coil device according to the present invention includes a coil pattern disposed on a printed wiring board,
A pair of core members disposed on both sides of the printed wiring board and electromagnetically coupled to the coil pattern;
In a state inserted in the core hole formed in each core member, comprising a connecting member for connecting the core member and fixing to the printed wiring board,
The connecting member is installed so as to bypass the end portion of the printed wiring board and sandwich the printed wiring board.
本発明によれば、各コア部材に形成されたコア穴に連結部材を挿入することによって、コア部材同士の横ズレを防止できるとともに、コイル装置の組み立てが容易になり、製造コストを低減できる。 According to the present invention, by inserting the connecting member into the core hole formed in each core member, it is possible to prevent the lateral displacement between the core members, and the assembly of the coil device is facilitated, and the manufacturing cost can be reduced.
また、コイルパターンの外側でプリント配線板を貫通するように連結部材を設置することによって、あるいは、プリント配線板の端部を迂回してプリント配線板を挟持するように連結部材を設置することによって、コイルパターンの小型化が図られる。 Also, by installing a connecting member so as to penetrate the printed wiring board outside the coil pattern, or by installing a connecting member so as to bypass the end of the printed wiring board and sandwich the printed wiring board Thus, the coil pattern can be reduced in size.
実施の形態１．
図１は、本発明の実施の形態１に係るコイル装置６０を示す概略斜視図である。図２は、図１に示すコイル装置６０を分解した斜視図である。図３は、図１に示すコイル装置６０を分解した断面図である。
Embodiment 1 FIG.
FIG. 1 is a schematic perspective view showing a coil device 60 according to Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of the coil device 60 shown in FIG. FIG. 3 is an exploded cross-sectional view of the coil device 60 shown in FIG.
コイル装置６０は、プリント配線板４０に配置されたコイルパターン４２と、コイルパターン４２と電磁結合する一対のコア部材３０と、各コア部材３０を連結するための連結部材２０などを備える。 The coil device 60 includes a coil pattern 42 disposed on the printed wiring board 40, a pair of core members 30 that are electromagnetically coupled to the coil pattern 42, and a connecting member 20 that connects the core members 30.
プリント配線板４０は、導体層と電気絶縁層とが交互に積層された多層プリント配線板として構成される。プリント配線板４０には、本実施形態に係るコイル装置６０の他に、コンデンサ、抵抗、ダイオードなどの電子部品１などが、はんだ付けなどの接続手段を用いて実装される。こうしたプリント配線板４０は、電力変換、信号処理などの機能を実現する電子回路として機能する。なお、図１では１つのコイル装置６０を実装した例を示しているが、複数のコイル装置６０をプリント配線板４０に実装することも可能である。 The printed wiring board 40 is configured as a multilayer printed wiring board in which conductor layers and electrical insulating layers are alternately stacked. In addition to the coil device 60 according to this embodiment, the electronic component 1 such as a capacitor, a resistor, or a diode is mounted on the printed wiring board 40 by using a connecting means such as soldering. Such a printed wiring board 40 functions as an electronic circuit that realizes functions such as power conversion and signal processing. Although FIG. 1 shows an example in which one coil device 60 is mounted, a plurality of coil devices 60 can be mounted on the printed wiring board 40.
コイルパターン４２は、プリント配線板４０の導体層にエッチング等によって形成される。コイルパターン４２は、プリント配線板４０の外層に配置してもよいが、コア部材３０との電気絶縁を確保するために、プリント配線板４０の内層に配置することが好ましい。コイル装置６０が複数のコイル回路を備える場合は、複数の導体層において各コイル回路に対応したコイルパターンがそれぞれ形成される。プリント配線板４０には、１つの第１貫通穴４１と、２つの第２貫通穴４３とが形成されており、第１貫通穴４１を取り囲むようにコイルパターン４２が配置される。 The coil pattern 42 is formed on the conductor layer of the printed wiring board 40 by etching or the like. The coil pattern 42 may be disposed in the outer layer of the printed wiring board 40, but is preferably disposed in the inner layer of the printed wiring board 40 in order to ensure electrical insulation with the core member 30. When the coil device 60 includes a plurality of coil circuits, coil patterns corresponding to the respective coil circuits are formed in the plurality of conductor layers. In the printed wiring board 40, one first through hole 41 and two second through holes 43 are formed, and a coil pattern 42 is disposed so as to surround the first through hole 41.
コア部材３０は、フェライトなどの磁性材料で形成され、例えば、Ｅ字状の分割コアに予め二分されたものであり、コア部材３０をプリント配線板４０の両面側から第１貫通穴４１および第２貫通穴４３にそれぞれ装着すると、各コア部材３０を一体化したコイル用コアが完成する。このときコア部材３０の中心脚部３３が第１貫通穴４１に挿入され、コア部材３０の外脚部３１が第２貫通穴４３に挿入される。 The core member 30 is formed of a magnetic material such as ferrite, and is previously divided into, for example, E-shaped split cores. The core member 30 is separated from both sides of the printed wiring board 40 by the first through holes 41 and the first through holes 41. When each of the two through holes 43 is mounted, a coil core in which the core members 30 are integrated is completed. At this time, the center leg portion 33 of the core member 30 is inserted into the first through hole 41, and the outer leg portion 31 of the core member 30 is inserted into the second through hole 43.
コア部材３０には、連結部材２０を挿入するためのコア穴３２が形成される。本実施形態では、コア部材３０をプリント配線板４０に実装した状態で、コア穴３２はプリント配線板４０に対して垂直な方向に形成される。さらに、一方のコア部材３０に形成されたコア穴３２と、他方のコア部材３０に形成されたコア穴３２とが同軸になり、第２貫通穴４３を通過するように位置決めされる。 A core hole 32 for inserting the connecting member 20 is formed in the core member 30. In the present embodiment, the core hole 32 is formed in a direction perpendicular to the printed wiring board 40 with the core member 30 mounted on the printed wiring board 40. Furthermore, the core hole 32 formed in one core member 30 and the core hole 32 formed in the other core member 30 are coaxially positioned so as to pass through the second through hole 43.
連結部材２０は、テーパー状の先端を有する棒状部材として構成され、棒状部材の後端には、その直交方向に延びる一対の腕部２１が一体的に形成される。腕部２１の先端は、棒状部材の先端に向けて湾曲している。棒状部材の先端近傍には、後端に向けて湾曲した返し部２２が一体的に形成される。連結部材２０は、金属等の導電性材料で形成することも可能であるが、プリント配線板４０に対する電気絶縁を確保できる電気絶縁材料、例えば、合成樹脂などで形成することが好ましい。 The connecting member 20 is configured as a rod-shaped member having a tapered tip, and a pair of arm portions 21 extending in the orthogonal direction are integrally formed at the rear end of the rod-shaped member. The tip of the arm portion 21 is curved toward the tip of the rod-shaped member. Near the front end of the rod-shaped member, a return portion 22 that is curved toward the rear end is integrally formed. The connecting member 20 can be formed of a conductive material such as a metal, but is preferably formed of an electrically insulating material that can ensure electrical insulation with respect to the printed wiring board 40, such as a synthetic resin.
連結部材２０は、テーパー状の先端が一方のコア部材３０に形成されたコア穴３２、第２貫通穴４３、および他方のコア部材３０に形成されたコア穴３２の順で通過するように挿入され、返し部２２が再び露出すると、連結部材２０は容易に外れない構造となり、腕部２１の先端および返し部２２の先端がコア部材３０を弾性的に挟持することが可能になる。そのためコア部材３０の取り付けギャップが解消でき、振動によるコア部材３０のずれを防止できる。 The connecting member 20 is inserted so that the tapered tip passes in the order of the core hole 32 formed in the one core member 30, the second through hole 43, and the core hole 32 formed in the other core member 30. When the return portion 22 is exposed again, the connecting member 20 is not easily detached, and the tip of the arm portion 21 and the tip of the return portion 22 can elastically hold the core member 30. Therefore, the attachment gap of the core member 30 can be eliminated, and displacement of the core member 30 due to vibration can be prevented.
こうした連結部材２０を使用することによって、各コア部材３０を連結してプリント配線板４０に固定する作業が容易になる。その結果、コイル装置６０を容易に組み立てることができ、しかも電子部品の配置の自由度を妨げないことから、製造コストの削減が図られる。また、連結部材２０は位置決めガイドとして機能するため、コア部材３０同士の横ズレを防止できる。 By using such a connecting member 20, the operation of connecting and fixing the core members 30 to the printed wiring board 40 is facilitated. As a result, the coil device 60 can be easily assembled, and the degree of freedom in arranging the electronic components is not hindered, so that the manufacturing cost can be reduced. Further, since the connecting member 20 functions as a positioning guide, it is possible to prevent the lateral displacement between the core members 30.
本実施形態では、第１貫通穴４１を中心として対称な２つの位置に第２貫通穴４３をそれぞれ設けて、第２貫通穴４３に挿入された２つの連結部材２０を用いてコア部材３０を連結することによって、コア部材３０は対称な２か所を通して連結されるため、より強固に固定され、回転ずれおよび位置ずれを防止することができる。 In the present embodiment, the second through hole 43 is provided at two positions symmetrical about the first through hole 41, and the core member 30 is formed using the two connecting members 20 inserted into the second through hole 43. By connecting, since the core member 30 is connected through two symmetrical places, the core member 30 is more firmly fixed and can prevent rotational deviation and positional deviation.
また本実施形態では、連結部材２０は、コイルパターン４２の外側でプリント配線板４０を貫通するように設置しており、特に、連結部材２０が挿入されるコア穴３２は、コア部材３０の外脚部３１を貫通するように形成している。これにより連結部材２０がコイルパターン４２の内側を貫通する構成と比べて、コイルパターンの小型化が図られる。 Further, in this embodiment, the connecting member 20 is installed so as to penetrate the printed wiring board 40 outside the coil pattern 42, and in particular, the core hole 32 into which the connecting member 20 is inserted is outside the core member 30. It is formed so as to penetrate the leg portion 31. Accordingly, the coil pattern can be reduced in size as compared with the configuration in which the connecting member 20 penetrates the inside of the coil pattern 42.
なお本実施形態では、２つのコア穴３２を設けて、２つの連結部材２０を使用する場合を例示したが、１つまたは３つ以上のコア穴３２をコア部材３０に設けて、１つまたは３つ以上の連結部材２０を使用することも可能である。 In this embodiment, two core holes 32 are provided and two connecting members 20 are used. However, one or three or more core holes 32 are provided in the core member 30, and one or It is also possible to use three or more connecting members 20.
実施の形態２．
図４は、本発明の実施の形態２に係るコイル装置６０を示す分解斜視図である。図５は、図４に示すコイル装置６０を分解した断面図である。
Embodiment 2. FIG.
FIG. 4 is an exploded perspective view showing a coil device 60 according to Embodiment 2 of the present invention. FIG. 5 is an exploded cross-sectional view of the coil device 60 shown in FIG.
コイル装置６０は、プリント配線板４０に配置されたコイルパターン４２と、コイルパターン４２と電磁結合する一対のコア部材３０と、各コア部材３０を連結するための連結部材２０などを備える。 The coil device 60 includes a coil pattern 42 disposed on the printed wiring board 40, a pair of core members 30 that are electromagnetically coupled to the coil pattern 42, and a connecting member 20 that connects the core members 30.
プリント配線板４０は、実施の形態１と同様に、導体層と電気絶縁層とが交互に積層された多層プリント配線板として構成される。なお、図４では１つのコイル装置６０を実装した例を示しているが、複数のコイル装置６０をプリント配線板４０に実装することも可能である。 Similar to the first embodiment, the printed wiring board 40 is configured as a multilayer printed wiring board in which conductor layers and electrical insulating layers are alternately stacked. Although FIG. 4 shows an example in which one coil device 60 is mounted, a plurality of coil devices 60 can be mounted on the printed wiring board 40.
コイルパターン４２は、プリント配線板４０の導体層、好ましくは、内層の導体層に形成される。プリント配線板４０には、２つの第１貫通穴４１と、２つの第２貫通穴４３とが形成されており、各第１貫通穴４１を取り囲むように２つのコイルパターン４２がそれぞれ配置される。 The coil pattern 42 is formed on a conductor layer of the printed wiring board 40, preferably an inner conductor layer. Two first through holes 41 and two second through holes 43 are formed in the printed wiring board 40, and two coil patterns 42 are respectively arranged so as to surround each first through hole 41. .
コア部材３０は、フェライトなどの磁性材料で形成され、例えば、Ｕ字状の分割コアに予め二分されたものであり、コア部材３０をプリント配線板４０の両面側から第１貫通穴４１にそれぞれ装着すると、各コア部材３０を一体化したコイル用コアが完成する。このときコア部材３０の外脚部３１が第１貫通穴４１に挿入される。 The core member 30 is formed of a magnetic material such as ferrite, and is, for example, previously divided into two U-shaped split cores. The core member 30 is respectively inserted into the first through holes 41 from both sides of the printed wiring board 40. When installed, a coil core in which the core members 30 are integrated is completed. At this time, the outer leg portion 31 of the core member 30 is inserted into the first through hole 41.
コア部材３０には、連結部材２０を挿入するためのコア穴３２が形成される。本実施形態では、コア部材３０をプリント配線板４０に実装した状態で、コア穴３２はプリント配線板４０に対して垂直な方向に形成される。さらに、一方のコア部材３０に形成されたコア穴３２と、他方のコア部材３０に形成されたコア穴３２とが同軸になり、第２貫通穴４３を通過するように位置決めされる。 A core hole 32 for inserting the connecting member 20 is formed in the core member 30. In the present embodiment, the core hole 32 is formed in a direction perpendicular to the printed wiring board 40 with the core member 30 mounted on the printed wiring board 40. Furthermore, the core hole 32 formed in one core member 30 and the core hole 32 formed in the other core member 30 are coaxially positioned so as to pass through the second through hole 43.
連結部材２０は、実施の形態１と同様に、テーパー状の先端を有し、先端近傍に返し部２２を有し、後端に一対の腕部２１を有する棒状部材として構成される。 As in the first embodiment, the connecting member 20 is configured as a rod-shaped member having a tapered tip, a return portion 22 near the tip, and a pair of arm portions 21 at the rear end.
連結部材２０は、テーパー状の先端が一方のコア部材３０に形成されたコア穴３２、第２貫通穴４３、および他方のコア部材３０に形成されたコア穴３２の順で通過するように挿入され、返し部２２が再び露出すると、連結部材２０は容易に外れない構造となり、腕部２１の先端および返し部２２の先端がコア部材３０を弾性的に挟持することが可能になる。こうした構成により、実施の形態１と同様に、コア部材３０の位置ずれ防止、組み立ての容易化、製造コストの削減が図られる。 The connecting member 20 is inserted so that the tapered tip passes in the order of the core hole 32 formed in the one core member 30, the second through hole 43, and the core hole 32 formed in the other core member 30. When the return portion 22 is exposed again, the connecting member 20 is not easily detached, and the tip of the arm portion 21 and the tip of the return portion 22 can elastically hold the core member 30. With such a configuration, as in the first embodiment, it is possible to prevent the core member 30 from being displaced, facilitate assembly, and reduce manufacturing costs.
また本実施形態では、連結部材２０は、コイルパターン４２の外側でプリント配線板４０を貫通するように、特に、２つのコイルパターン４２の間に位置する第２貫通穴４３を通過するように設置している。これにより連結部材２０がコイルパターン４２の内側を貫通する構成と比べて、コイルパターンの小型化が図られる。 Further, in the present embodiment, the connecting member 20 is installed so as to penetrate the printed wiring board 40 outside the coil pattern 42, and in particular, to pass through the second through hole 43 positioned between the two coil patterns 42. doing. Accordingly, the coil pattern can be reduced in size as compared with the configuration in which the connecting member 20 penetrates the inside of the coil pattern 42.
なお本実施形態では、２つのコア穴３２を設けて、２つの連結部材２０を使用する場合を例示したが、１つまたは３つ以上のコア穴３２をコア部材３０に設けて、１つまたは３つ以上の連結部材２０を使用することも可能である。 In this embodiment, two core holes 32 are provided and two connecting members 20 are used. However, one or three or more core holes 32 are provided in the core member 30, and one or It is also possible to use three or more connecting members 20.
実施の形態３．
図６は、本発明の実施の形態３に係るコイル装置６０を示す断面図である。図７は、図６に示す連結部材２０を示す斜視図である。図８は、図６に示すコイル装置６０の組立て方法を示す断面図である。
Embodiment 3 FIG.
FIG. 6 is a cross-sectional view showing a coil device 60 according to Embodiment 3 of the present invention. FIG. 7 is a perspective view showing the connecting member 20 shown in FIG. FIG. 8 is a cross-sectional view showing a method for assembling the coil device 60 shown in FIG.
コイル装置６０は、プリント配線板４０に配置されたコイルパターン４２と、コイルパターン４２と電磁結合する一対のコア部材３０と、各コア部材３０を連結するための連結部材２０などを備える。 The coil device 60 includes a coil pattern 42 disposed on the printed wiring board 40, a pair of core members 30 that are electromagnetically coupled to the coil pattern 42, and a connecting member 20 that connects the core members 30.
プリント配線板４０は、実施の形態１と同様に、導体層と電気絶縁層とが交互に積層された多層プリント配線板として構成される。 Similar to the first embodiment, the printed wiring board 40 is configured as a multilayer printed wiring board in which conductor layers and electrical insulating layers are alternately stacked.
コイルパターン４２は、プリント配線板４０の導体層、好ましくは、内層の導体層に形成される。プリント配線板４０には、端部４４に近接した１つの第１貫通穴４１と、１つの第２貫通穴４３とが形成されており、第１貫通穴４１を取り囲むようにコイルパターン４２が配置される。 The coil pattern 42 is formed on a conductor layer of the printed wiring board 40, preferably an inner conductor layer. The printed wiring board 40 is formed with one first through hole 41 and one second through hole 43 close to the end portion 44, and the coil pattern 42 is disposed so as to surround the first through hole 41. Is done.
コア部材３０は、フェライトなどの磁性材料で形成され、実施の形態１と同様に、例えば、Ｅ字状の分割コアに予め二分されたものであり、コア部材３０をプリント配線板４０の両面側から第１貫通穴４１および第２貫通穴４３にそれぞれ装着すると、各コア部材３０を一体化したコイル用コアが完成する。このときコア部材３０の中心脚部３３が第１貫通穴４１に挿入され、一方の外脚部３１が第２貫通穴４３に挿入され、他方の外脚部３１がプリント配線板４０の端部４４の外側に配置される。なお、プリント配線板４０の一部に、他方の外脚部３１を挿入するための切り欠け部を設け、切り欠け部の内周をプリント配線板４０の端部４４としてもよい。 The core member 30 is formed of a magnetic material such as ferrite, and is divided into, for example, an E-shaped split core in advance, as in the first embodiment. The core member 30 is formed on both sides of the printed wiring board 40. To the first through hole 41 and the second through hole 43, a coil core in which the core members 30 are integrated is completed. At this time, the center leg portion 33 of the core member 30 is inserted into the first through hole 41, one outer leg portion 31 is inserted into the second through hole 43, and the other outer leg portion 31 is the end portion of the printed wiring board 40. 44 is disposed outside. Note that a cutout portion for inserting the other outer leg portion 31 may be provided in a part of the printed wiring board 40, and the inner periphery of the cutout portion may be the end portion 44 of the printed wiring board 40.
コア部材３０には、連結部材２０を挿入するためのコア穴３２が形成される。本実施形態では、コア部材３０をプリント配線板４０に実装した状態で、コア穴３２は、プリント配線板４０に対して平行な方向に、コア部材３０の外脚部３１および中心脚部３３を同軸で貫通するように形成される。 A core hole 32 for inserting the connecting member 20 is formed in the core member 30. In the present embodiment, in a state where the core member 30 is mounted on the printed wiring board 40, the core hole 32 has the outer leg portion 31 and the central leg portion 33 of the core member 30 in a direction parallel to the printed wiring board 40. It is formed so as to penetrate coaxially.
連結部材２０は、図７に示すように、テーパー状の先端を有するトング状の棒状部材として構成されており、各コア部材３０のコア穴３２に挿入される一対の把持部２０ａと、各把持部２０ａを弾性的に連結し、Ｕ字状に湾曲した連結部２３とを有する。各把持部２０ａの先端近傍には、連結部２３に向けて湾曲した返し部２２が一体的に形成される。連結部材２０は、金属等の導電性材料で形成することも可能であるが、プリント配線板４０に対する電気絶縁を確保できる電気絶縁材料、例えば、合成樹脂などで形成することが好ましい。 As shown in FIG. 7, the connecting member 20 is configured as a tong-shaped rod-shaped member having a tapered tip, and a pair of gripping portions 20 a to be inserted into the core holes 32 of the core members 30 and the grips. It has the connection part 23 which connected the part 20a elastically and was curved in the U shape. A return portion 22 that is curved toward the connecting portion 23 is integrally formed near the tip of each gripping portion 20a. The connecting member 20 can be formed of a conductive material such as a metal, but is preferably formed of an electrically insulating material that can ensure electrical insulation with respect to the printed wiring board 40, such as a synthetic resin.
図６に示すコイル装置６０を組み立てる場合、図８に示すように、連結部材２０の把持部２０ａを広げた状態で、先端をコア部材３０のコア穴３２に挿入し、返し部２２が再び露出すると、連結部材２０は容易に外れない構造となる。このとき連結部２３および返し部２２の先端がコア部材３０を弾性的に挟持することが可能になる。そのためコア部材３０の取り付けギャップが解消でき、振動によるコア部材３０のずれを防止できる。 When assembling the coil device 60 shown in FIG. 6, as shown in FIG. 8, the distal end is inserted into the core hole 32 of the core member 30 with the gripping portion 20 a of the connecting member 20 expanded, and the return portion 22 is exposed again. Then, the connecting member 20 has a structure that does not easily come off. At this time, the ends of the connecting portion 23 and the return portion 22 can elastically hold the core member 30. Therefore, the attachment gap of the core member 30 can be eliminated, and displacement of the core member 30 due to vibration can be prevented.
続いて、プリント配線板４０を挿入した状態で連結部材２０の把持部２０ａを閉じると、コア部材３０の中心脚部３３が第１貫通穴４１に挿入され、一方の外脚部３１が第２貫通穴４３に挿入される。こうして連結部材２０は、連結部２３の弾性力を利用してプリント配線板４０を弾性的に挟持できるとともに、プリント配線板４０の端部４４を迂回しているため、連結部材２０がコイルパターン４２の内側を貫通する構成と比べて、コイルパターンの小型化が図られる。 Subsequently, when the gripping portion 20a of the connecting member 20 is closed with the printed wiring board 40 inserted, the center leg portion 33 of the core member 30 is inserted into the first through hole 41, and one outer leg portion 31 is the second. It is inserted into the through hole 43. Thus, the connecting member 20 can elastically hold the printed wiring board 40 by using the elastic force of the connecting portion 23 and bypasses the end 44 of the printed wiring board 40, so that the connecting member 20 is connected to the coil pattern 42. The coil pattern can be reduced in size as compared with the configuration penetrating the inside of the coil pattern.
このようにコア部材３０に連結部材２０を挿入したものを予め組み立てておいて、その後、プリント配線板４０に装着するだけでコイル装置６０の組立てが完了するため、組立て効率が著しく改善する。 As described above, the assembly of the coil device 60 is completed simply by assembling the core member 30 into which the connecting member 20 is inserted in advance and then mounting it on the printed wiring board 40, so that the assembly efficiency is remarkably improved.
１ 電子部品、 ２０ 連結部材、 ２０ａ 把持部、 ２１ 腕部、
２２ 返し部、 ２３ 連結部、 ３０ コア部材、 ３１ 外脚部、
３２ コア穴、 ３３ 中心脚部、 ４０ プリント配線板、 ４１ 第１貫通穴、
４２ コイルパターン、 ４３ 第２貫通穴、 ４４ 端部、 ６０ コイル装置。
1 electronic component, 20 connecting member, 20a gripping part, 21 arm part,
22 return parts, 23 connecting parts, 30 core members, 31 outer leg parts,
32 core holes, 33 central leg, 40 printed wiring board, 41 first through hole,
42 coil pattern, 43 second through hole, 44 end, 60 coil device.
Claims (7)
プリント配線板の両面に配置され、該コイルパターンと電磁結合する一対のコア部材と、
各コア部材に形成されたコア穴に挿入された状態で、コア部材を連結してプリント配線板に固定するための連結部材とを備え、
連結部材は、コイルパターンの外側でプリント配線板を貫通するように設置されることを特徴とするコイル装置。 A coil pattern arranged on a printed wiring board;
A pair of core members disposed on both sides of the printed wiring board and electromagnetically coupled to the coil pattern;
In a state inserted in the core hole formed in each core member, comprising a connecting member for connecting the core member and fixing to the printed wiring board,
The coupling device is installed so as to penetrate the printed wiring board outside the coil pattern.
コア部材は、第２貫通穴に挿入された２つの連結部材を用いて連結されることを特徴とする請求項２記載のコイル装置。 The second through holes are respectively provided at two positions symmetrical about the first through hole,
The coil device according to claim 2, wherein the core member is connected using two connecting members inserted into the second through hole.
プリント配線板には、各コイルパターンの内側に位置し、コア部材の一部が挿入される２つの第１貫通穴と、各コイルパターンの間に位置し、連結部材が挿入される第２貫通穴とが形成されることを特徴とする請求項１記載のコイル装置。 Two coil patterns are placed on the printed wiring board,
The printed wiring board is located inside each coil pattern and is positioned between the two first through holes into which a part of the core member is inserted, and the second through hole is located between each coil pattern and into which the connecting member is inserted. The coil device according to claim 1, wherein a hole is formed.
プリント配線板の両面に配置され、該コイルパターンと電磁結合する一対のコア部材と、
各コア部材に形成されたコア穴に挿入された状態で、コア部材を連結してプリント配線板に固定するための連結部材とを備え、
連結部材は、プリント配線板の端部を迂回してプリント配線板を挟持するように設置されることを特徴とするコイル装置。 A coil pattern arranged on a printed wiring board;
A pair of core members disposed on both sides of the printed wiring board and electromagnetically coupled to the coil pattern;
In a state inserted in the core hole formed in each core member, comprising a connecting member for connecting the core member and fixing to the printed wiring board,
The coupling device is installed so as to bypass the end portion of the printed wiring board and sandwich the printed wiring board.
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| JP2013080584A JP2014204032A (en) | 2013-04-08 | 2013-04-08 | Coil device |
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| JP2013080584A JP2014204032A (en) | 2013-04-08 | 2013-04-08 | Coil device |
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Cited By (1)
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