JP6200830B2

JP6200830B2 - Transformer module

Info

Publication number: JP6200830B2
Application number: JP2014032774A
Authority: JP
Inventors: 卓児山城
Original assignee: Shindengen Electric Manufacturing Co Ltd
Current assignee: Shindengen Electric Manufacturing Co Ltd
Priority date: 2014-02-24
Filing date: 2014-02-24
Publication date: 2017-09-20
Anticipated expiration: 2034-02-24
Also published as: JP2015159175A

Description

この発明は、トランスモジュールに関する。 The present invention relates to a transformer module.

従来のトランスモジュールには、例えば特許文献１のように、一次側コイル（一次側巻線）及び二次側コイル（二次側巻線）を有するトランスと、一次側コイルや二次側コイルに流れる交流電流を計測する電流計測部（例えばカレントトランス）と、を備えるものがある。特許文献１のトランスモジュールでは、導線からなるコイルの引出線部を筒状に形成された電流計測部に挿通させている。 A conventional transformer module includes, for example, a transformer having a primary side coil (primary side winding) and a secondary side coil (secondary side winding), and a primary side coil and a secondary side coil as disclosed in Patent Document 1. Some include a current measurement unit (for example, a current transformer) that measures a flowing alternating current. In the transformer module of Patent Document 1, a lead wire portion of a coil made of a conducting wire is inserted through a current measuring portion formed in a cylindrical shape.

特開２０１３−２６５９７号公報JP 2013-26597 A

ところで、上記従来のトランスモジュールを各種装置の搭載部（例えば基板やヒートシンクなど）に搭載する場合、コイルの引出線部（導線）は可撓性を有するため、コイルの引出線部（導線）を、電流計測部から所定長さだけ外部に引き出した上で、搭載部に対して電気的に接続したり機械的に固定したりする必要がある。また、上記従来のトランスモジュールでは、予めコイルの引出線部の先端部に、搭載部に接続、固定するための端子部（例えば圧着端子など）を設けておく必要がある。
コイルの引出線部は、通電時に発生するコイルの熱を搭載部に逃がす放熱経路もなすが、上記従来のトランスモジュールでは、電流計測部と端子部とが離れて位置するため、上記放熱経路が長くなり、コイルの放熱効率が低い、という問題がある。 By the way, when the conventional transformer module is mounted on a mounting portion (for example, a substrate or a heat sink) of various devices, the coil lead wire portion (conductive wire) is flexible. In addition, it is necessary to draw out a predetermined length from the current measuring unit to the outside and then electrically connect or mechanically fix the mounting unit. Further, in the conventional transformer module, it is necessary to previously provide a terminal portion (for example, a crimp terminal) for connecting and fixing to the mounting portion at the leading end portion of the lead wire portion of the coil.
The coil lead wire part also provides a heat dissipation path that releases the heat of the coil generated during energization to the mounting part. However, in the conventional transformer module, the current measurement part and the terminal part are located apart from each other. There is a problem that the heat dissipation efficiency of the coil is low due to the lengthening.

また、上記従来のトランスモジュールでは、電流計測部と端子部とが離れて位置するため、トランスモジュールの小型化が難しい、という問題もある。また、上記従来のトランスモジュールでは、電流計測部と端子部とが離れて位置するため、搭載部に対するトランスモジュールの搭載面積の拡大を招く虞もある。
さらに、上記従来のトランスモジュールでは、電流計測部から外部に延びるコイルの引出線部が可撓性を有する。このため、引出線部の先端部に設けられた端子部を、搭載部に対して接続、固定する際には、端子部を搭載部に対して位置決めする治具を設けるなど、余分な工数が必要となり、搭載部に対するトランスモジュールの取付効率が低い、という問題もある。 In addition, the conventional transformer module has a problem that it is difficult to reduce the size of the transformer module because the current measurement unit and the terminal unit are located apart from each other. In the conventional transformer module, since the current measurement unit and the terminal unit are located apart from each other, there is a possibility of increasing the mounting area of the transformer module with respect to the mounting unit.
Furthermore, in the conventional transformer module, the lead wire portion of the coil extending from the current measuring portion to the outside has flexibility. For this reason, when connecting and fixing the terminal part provided at the tip part of the leader line part to the mounting part, an extra man-hour such as providing a jig for positioning the terminal part with respect to the mounting part is required. There is also a problem that the mounting efficiency of the transformer module to the mounting portion is low.

本発明は、上述した事情に鑑みたものであって、放熱効率の向上、小型化、及び、搭載部に対する取付効率の向上を図ることができるトランスモジュールを提供することを目的とする。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a transformer module capable of improving heat dissipation efficiency, downsizing, and mounting efficiency with respect to a mounting portion.

この課題を解決するために、本発明のトランスモジュールは、一次側コイル及び二次側コイルを有するトランスと、筒状に形成されて挿通孔を有すると共に、前記一次側コイル及び前記二次側コイルの少なくともいずれか一方のコイルに流れる交流電流を計測する電流計測部と、を備えるトランスモジュールであって、導電性を有すると共に前記電流計測部の挿通孔に挿通される棒状部材を備え、前記一方のコイルが、その巻回部分から外側に引き出される板状の引出板部を備え、前記棒状部材の軸方向の第一端部を前記一方のコイルの引出板部のうち厚さ方向に直交する主面に当接させることで、前記引出板部と前記棒状部材とを電気接続することを特徴とする。 In order to solve this problem, a transformer module of the present invention includes a transformer having a primary side coil and a secondary side coil, a cylindrical shape having an insertion hole, and the primary side coil and the secondary side coil. A current measuring unit that measures an alternating current flowing in at least one of the coils, and a transformer module that has conductivity and includes a rod-like member that is inserted through the insertion hole of the current measuring unit, The coil includes a plate-like drawing plate portion drawn outward from the winding portion, and the first end portion in the axial direction of the rod-like member is orthogonal to the thickness direction of the drawing plate portion of the one coil. By making it contact | abut to a main surface, the said drawer | drawing-out board part and the said rod-shaped member are electrically connected, It is characterized by the above-mentioned.

本発明のトランスモジュールでは、棒状部材の第二端部を搭載部に当接させることで、コイルの引出板部を搭載部に対して電気的に接続したり機械的に固定したりすることが可能となる。このため、一方のコイルの引出板部から搭載部に至る一方のコイルの放熱経路を短く設定でき、一方のコイルの放熱効率の向上を図ることができる。 In the transformer module according to the present invention, the second end portion of the rod-shaped member is brought into contact with the mounting portion, whereby the drawing plate portion of the coil can be electrically connected to the mounting portion or mechanically fixed. It becomes possible. For this reason, the heat dissipation path of one coil from the drawing plate portion of one coil to the mounting portion can be set short, and the heat dissipation efficiency of one coil can be improved.

また、本発明のトランスモジュールでは、電流計測部の挿通孔に挿通された棒状部材の第二端部が、搭載部に接続、固定される一方のコイルの端子部をなす。すなわち、一方のコイルの端子部が電流計測部と一体に設けられるため、トランスモジュールの小型化を容易に図ることができる。さらに、一方のコイルの端子部が電流計測部と一体に設けられることで、一方のコイルの端子部と電流計測部とが近くに位置するため、搭載部に対するトランスモジュールの搭載面積の縮小も図ることもできる。 In the transformer module of the present invention, the second end of the rod-like member inserted through the insertion hole of the current measuring unit forms a terminal portion of one coil connected and fixed to the mounting unit. That is, since the terminal part of one coil is provided integrally with the current measuring part, the transformer module can be easily downsized. Furthermore, since the terminal part of one coil is provided integrally with the current measuring part, the terminal part of one coil and the current measuring part are located close to each other, so that the mounting area of the transformer module with respect to the mounting part is also reduced. You can also.

さらに、一方のコイルの端子部をなす棒状部材が電流計測部と一体に設けられるため、また、トランスから電流計測部に向けて延びる一方のコイルの引出板部は、従来のコイルの引出線部のような可撓性を有さないため、棒状部材の第二端部を搭載部に対して接続、固定する際には、従来のような位置決め用の治具を設ける必要が無くなる。すなわち、トランスモジュールを搭載部に取り付ける際には、従来のような余分な工数が不要となる。したがって、搭載部に対するトランスモジュールの取付効率を向上させることができる。 Furthermore, since the rod-shaped member forming the terminal part of one coil is provided integrally with the current measuring part, the lead plate part of one coil extending from the transformer toward the current measuring part is a lead line part of the conventional coil. Therefore, when connecting and fixing the second end portion of the rod-shaped member to the mounting portion, there is no need to provide a conventional positioning jig. That is, when attaching a transformer module to a mounting part, the extra man-hour like the past becomes unnecessary. Therefore, the mounting efficiency of the transformer module with respect to the mounting portion can be improved.

本発明の第一実施形態に係るトランスモジュールを示す斜視図である。1 is a perspective view showing a transformer module according to a first embodiment of the present invention. 図１のトランスモジュールに備わる一次側コイル及び二次側コイルの構成を示す分解斜視図である。It is a disassembled perspective view which shows the structure of the primary side coil and secondary side coil with which the transformer module of FIG. 1 is equipped. 図１のトランスモジュールに備わる一次側コイルの第一端子板部、電流計測部及びその周辺構成を示す断面図である。It is sectional drawing which shows the 1st terminal board part of the primary side coil with which the transformer module of FIG. 1 is equipped, a current measurement part, and its periphery structure. 図３に示すトランスモジュールの第一端子板部を搭載部に取り付けた状態を示す断面図である。It is sectional drawing which shows the state which attached the 1st terminal board part of the transformer module shown in FIG. 3 to the mounting part. 本発明の第二実施形態に係るトランスモジュールに備わる電流計測部及びその周辺構成を示す断面図である。It is sectional drawing which shows the electric current measurement part with which the transformer module which concerns on 2nd embodiment of this invention is equipped, and its periphery structure.

〔第一実施形態〕
以下、図１〜４を参照して本発明の第一実施形態について説明する。
図１〜３に示すように、本実施形態のトランスモジュール１は、トランス２と、電流計測部３と、筒状部材（棒状部材）４と、を備える。トランス２は、一次側コイル５、二次側コイル６、樹脂部７及びトランスコア８を備える。 [First embodiment]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 to 3, the transformer module 1 of the present embodiment includes a transformer 2, a current measuring unit 3, and a cylindrical member (rod-like member) 4. The transformer 2 includes a primary side coil 5, a secondary side coil 6, a resin portion 7, and a transformer core 8.

図１，２に示すように、一次側コイル５は、その巻回部分から後述する樹脂部７の外側に引き出される板状の引出板部１２を二つ備える。以下、本実施形態の一次側コイル５の構成について詳細に説明する。
一次側コイル５は、導電性板材からなり、渦巻き状に巻かれた複数の渦巻き板部（巻回部分）１１を備える。各渦巻き板部１１には、後述するトランスコア８の軸部３２を挿通させる孔１３が形成されている。 As shown in FIGS. 1 and 2, the primary coil 5 includes two plate-like lead plate portions 12 that are drawn from the winding portion to the outside of the resin portion 7 described later. Hereinafter, the structure of the primary side coil 5 of this embodiment is demonstrated in detail.
The primary side coil 5 is made of a conductive plate material and includes a plurality of spiral plate portions (winding portions) 11 wound in a spiral shape. Each spiral plate portion 11 is formed with a hole 13 through which a shaft portion 32 of the transformer core 8 described later is inserted.

本実施形態の一次側コイル５は、四つの渦巻き板部１１（１１Ａ〜１１Ｄ）を備える。上側に位置する二つの渦巻き板部１１Ａ，１１Ｂは、その内縁側の端部同士が溶接等により接続されることで、直列に接続され、第一直列渦巻きユニット１４Ａをなしている。また、下側に位置する二つの渦巻き板部１１Ｃ，１１Ｄも同様にして、直列に接続され、第二直列渦巻きユニット１４Ｂをなしている。各直列渦巻きユニット１４Ａ，１４Ｂにおいて、二つの渦巻き板部１１，１１の間には不図示の絶縁シートが設けられ、二つの渦巻き板部１１，１１同士の電気的な絶縁が図られている。これら二組の直列渦巻きユニット１４Ａ，１４Ｂにそれぞれ備える二つの端子板部１５，１６は、それぞれ渦巻き板部１１の外縁側に位置し、径方向外側に延びている。 The primary side coil 5 of this embodiment includes four spiral plate portions 11 (11A to 11D). The two spiral plate portions 11A and 11B located on the upper side are connected in series by connecting the end portions on the inner edge side thereof by welding or the like, thereby forming the first series spiral unit 14A. Similarly, the two spiral plate portions 11C and 11D located on the lower side are connected in series to form a second series spiral unit 14B. In each series spiral unit 14A, 14B, an insulating sheet (not shown) is provided between the two spiral plate portions 11, 11, and the two spiral plate portions 11, 11 are electrically insulated. The two terminal plate portions 15 and 16 provided in the two sets of series spiral units 14A and 14B are located on the outer edge side of the spiral plate portion 11 and extend outward in the radial direction.

そして、二組の直列渦巻きユニット１４Ａ，１４Ｂは、二つの端子板部１５，１６同士が溶接等によりそれぞれ接続されることで、並列に接続される。二組の直列渦巻きユニット１４Ａ，１４Ｂは、軸方向Ｄ１に離れて位置するため、第二直列渦巻きユニット１４Ｂの端子板部１５Ｂ，１６Ｂは、第一直列渦巻きユニット１４Ａの端子板部１５Ａ，１６Ａに近づくように軸方向Ｄ１に折り曲げられている。
本実施形態では、一次側コイル５に備わる二つの引出板部１２が、上記した第一直列渦巻きユニット１４Ａの端子板部１５Ａ，１６Ａによって構成されている。なお、図示例では、一次側コイル５の引出板部１２をなす一つの端子板部１６Ａ（第一端子板部１６Ａ）が、径方向外側に延びた上で、渦巻き板部１１の周方向に屈曲して形成されているが、これに限ることはない。 And two sets of serial spiral units 14A and 14B are connected in parallel by connecting two terminal board parts 15 and 16 by welding etc., respectively. Since the two sets of series spiral units 14A and 14B are located apart in the axial direction D1, the terminal plate portions 15B and 16B of the second series spiral unit 14B are the terminal plate portions 15A and 16A of the first series spiral unit 14A. It is bent in the axial direction D1 so as to approach.
In the present embodiment, the two lead plate portions 12 provided in the primary coil 5 are constituted by the terminal plate portions 15A and 16A of the first series spiral unit 14A described above. In the illustrated example, one terminal plate portion 16A (first terminal plate portion 16A) constituting the lead plate portion 12 of the primary side coil 5 extends radially outward and then in the circumferential direction of the spiral plate portion 11. Although it is formed by bending, it is not limited to this.

二次側コイル６は、一次側コイル５と同様に、その巻回部分から後述する樹脂部７の外側に引き出される板状の引出板部２２を備える。
二次側コイル６は、導電性板材からなり、円環状に形成された二つのリング板部（巻回部分）２１を備える。各リング板部２１は、一周よりも若干短く形成され、平面視Ｃ字状を呈している。二つのリング板部２１は、その周方向の端部同士が溶接等により接続されることで、直列に接続される。すなわち、本実施形態の二次側コイル６は、二周よりも若干短い渦巻き状に形成されている。なお、二次側コイル６において、二つのリング板部２１の間には、不図示の絶縁シートが設けられ、リング板部２１同士の電気的な絶縁が図られている。 Similar to the primary side coil 5, the secondary side coil 6 includes a plate-like lead plate portion 22 that is drawn from the winding portion to the outside of the resin portion 7 described later.
The secondary coil 6 includes two ring plate portions (winding portions) 21 made of a conductive plate material and formed in an annular shape. Each ring plate portion 21 is formed slightly shorter than one round and has a C-shape in plan view. The two ring plate portions 21 are connected in series by connecting the end portions in the circumferential direction thereof by welding or the like. That is, the secondary coil 6 of the present embodiment is formed in a spiral shape that is slightly shorter than the second turn. In the secondary coil 6, an insulating sheet (not shown) is provided between the two ring plate portions 21 so that the ring plate portions 21 are electrically insulated from each other.

そして、二次側コイル６の両端をなす二つのリング板部２１の周方向の各第一端部には、径方向外側に延びて後述する樹脂部７の外側に引き出される板状の端子板部２５Ａ，２５Ｂが形成されている。また、一方のリング板部２１Ａのうち他方のリング板部２１Ｂに接続される周方向の第二端部にも、径方向外側に延びて後述する樹脂部７の外側に引き出される板状の端子板部２５Ｃが形成されている。これら三つの端子板部２５Ａ〜２５Ｃが二次側コイル６の引出板部２２をなす。 And in each circumferential first end of the two ring plate parts 21 forming both ends of the secondary coil 6, a plate-like terminal board extending radially outward and drawn out to the outside of the resin part 7 to be described later Portions 25A and 25B are formed. In addition, a plate-like terminal that extends radially outward to the outside of the resin portion 7 to be described later also on the second end portion in the circumferential direction connected to the other ring plate portion 21B of the one ring plate portion 21A. A plate portion 25C is formed. These three terminal plate portions 25 A to 25 C form the lead plate portion 22 of the secondary coil 6.

以上のように構成される二次側コイル６は、一次側コイル５の二つの直列渦巻きユニット１４Ａ，１４Ｂの間に配される。このため、二次側コイル６と各直列渦巻きユニット１４Ａ，１４Ｂとの間には、不図示の絶縁シートが設けられ、一次側コイル５と二次側コイル６との電気的な絶縁が図られている。
また、一次側コイル５及び二次側コイル６は、これらの引出板部１２，２２をなす端子板部１５Ａ，１６Ａ，２５Ａ〜２５Ｃが相互に逆向きで径方向外側に延びるように配される。これら一次側コイル５及び二次側コイル６の端子板部１５Ａ，１６Ａ，２５Ａ〜２５Ｃには、その厚さ方向に貫通する貫通孔１７，２７が形成されている。 The secondary coil 6 configured as described above is disposed between the two series spiral units 14A and 14B of the primary coil 5. For this reason, an insulating sheet (not shown) is provided between the secondary coil 6 and each series spiral unit 14A, 14B, and electrical insulation between the primary coil 5 and the secondary coil 6 is achieved. ing.
Further, the primary side coil 5 and the secondary side coil 6 are arranged such that the terminal plate portions 15A, 16A, 25A to 25C constituting the lead plate portions 12 and 22 extend in the radial direction in opposite directions. . The terminal plate portions 15A, 16A, 25A to 25C of the primary side coil 5 and the secondary side coil 6 are formed with through holes 17 and 27 penetrating in the thickness direction.

樹脂部７は、引出板部１２，２２をなす端子板部１５Ａ，１６Ａ，２５Ａ〜２５Ｃを除く一次側コイル５及び二次側コイル６の部分を封止して一体に固定するものである。樹脂部７は、渦巻き板部１１やリング板部２１、一次側コイル５における渦巻き板部１１Ａ〜１１Ｄの端子板部１５，１６同士の接続部分を覆うように形成され、略円筒状の外観を有する。 The resin part 7 seals and fixes the primary side coil 5 and the secondary side coil 6 except for the terminal plate parts 15A, 16A, 25A to 25C forming the lead plate parts 12 and 22. The resin portion 7 is formed so as to cover the connection portions of the spiral plate portion 11 and the ring plate portion 21 and the terminal plate portions 15 and 16 of the spiral plate portions 11A to 11D in the primary side coil 5, and has a substantially cylindrical appearance. Have.

トランスコア８は、磁性体からなり、樹脂部７によって封止された一次側コイル５及び二次側コイル６の軸方向Ｄ１から挟み込む一対のベース部３１と、一次側コイル５及び二次側コイル６に挿通されて二つのベース部３１同士を接続する軸部３２と、一次側コイル５及び二次側コイル６の外周側に配されて二つのベース部３１同士を接続する外郭部３３とを備える。図示例のトランスコア８は、軸部３２及び外郭部３３を一次側コイル５及び二次側コイル６の軸方向Ｄ１に分割して構成されているが、これに限ることはない。 The transformer core 8 is made of a magnetic material, and a pair of base portions 31 sandwiched from the axial direction D1 of the primary side coil 5 and the secondary side coil 6 sealed by the resin portion 7, and the primary side coil 5 and the secondary side coil. 6 and a shaft portion 32 that connects two base portions 31 to each other, and an outer portion 33 that is arranged on the outer peripheral side of the primary side coil 5 and the secondary side coil 6 and connects the two base portions 31 to each other. Prepare. The transformer core 8 of the illustrated example is configured by dividing the shaft portion 32 and the outer shell portion 33 in the axial direction D1 of the primary side coil 5 and the secondary side coil 6, but is not limited thereto.

図１，３に示すように、電流計測部３は、一次側コイル５に流れる交流電流を計測するものである。電流計測部３は、筒状に形成されて挿通孔４１を有する。電流計測部３は、計測部本体４２と、計測部本体４２を収容する収容ケース部４３とを備える。
本実施形態の計測部本体４２は、カレントトランスを構成するものであり、リング状のカレントコア４４と、カレントコア４４に巻回された二次巻線４５と、を備える。 As shown in FIGS. 1 and 3, the current measuring unit 3 measures an alternating current flowing through the primary coil 5. The current measuring unit 3 is formed in a cylindrical shape and has an insertion hole 41. The current measurement unit 3 includes a measurement unit main body 42 and a storage case unit 43 that stores the measurement unit main body 42.
The measuring unit main body 42 of the present embodiment constitutes a current transformer, and includes a ring-shaped current core 44 and a secondary winding 45 wound around the current core 44.

収容ケース部４３は、絶縁材料からなり、カレントコア４４の内周側を覆う内側筒状部４６と、カレントコア４４の外周側を覆う外側筒状部４７と、平面視環状に形成され、カレントコア４４の軸方向Ｄ１の両端部を覆う一対の被覆環状板部４８Ａ，４８Ｂと、を備える。前述した収容ケース部４３の挿通孔４１は、内側筒状部４６によって形成されている。
本実施形態では、内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａが、耐熱性を有する樹脂材料によって一体に形成されている。他方の被覆環状板部４８Ｂは、絶縁シート等からなり、内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａと別個に形成されている。 The housing case 43 is made of an insulating material, and is formed in an annular shape in plan view, an inner cylindrical portion 46 that covers the inner peripheral side of the current core 44, an outer cylindrical portion 47 that covers the outer peripheral side of the current core 44, and A pair of coated annular plate portions 48A and 48B covering both ends of the core 44 in the axial direction D1. The insertion hole 41 of the housing case portion 43 described above is formed by the inner cylindrical portion 46.
In the present embodiment, the inner cylindrical portion 46, the outer cylindrical portion 47, and one coated annular plate portion 48A are integrally formed of a heat-resistant resin material. The other coated annular plate portion 48B is made of an insulating sheet or the like, and is formed separately from the inner tubular portion 46, the outer tubular portion 47, and the one coated annular plate portion 48A.

また、本実施形態の収容ケース部４３には、収容ケース部４３内に設けられた二次巻線４５の引出線部（不図示）を外部に接続するための外部端子部４９が一体に固定されている。二次巻線４５の引出線部は、例えば外部端子部４９に絡げた上ではんだ付け等により固定される。 In addition, an external terminal portion 49 for connecting a lead wire portion (not shown) of the secondary winding 45 provided in the storage case portion 43 to the outside is integrally fixed to the storage case portion 43 of the present embodiment. Has been. The lead wire portion of the secondary winding 45 is fixed by, for example, soldering after being wound around the external terminal portion 49.

筒状部材４は、導電性を有するものであり、筒状部材４の軸方向が上記した電流計測部３の挿通孔４１に一致するように電流計測部３の挿通孔４１に挿通される。筒状部材４は、電流計測部３を構成する収容ケース部４３に一体に固定されている。筒状部材４は、例えば接着により収容ケース部４３の挿通孔４１の内周面に固定されてもよいし、例えば収容ケース部４３の内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａを成形する際に固定されてもよい。
上記のように筒状部材４が電流計測部３に取り付けられた状態では、筒状部材４の軸方向の両端部（第一端部４Ａ及び第二端部４Ｂ）が、電流計測部３の挿通孔４１の開口端と同一平面をなしてもよいし、挿通孔４１の開口端から突出してもよい。 The cylindrical member 4 has conductivity, and is inserted through the insertion hole 41 of the current measurement unit 3 such that the axial direction of the cylindrical member 4 coincides with the insertion hole 41 of the current measurement unit 3 described above. The cylindrical member 4 is integrally fixed to a housing case portion 43 that constitutes the current measuring portion 3. The tubular member 4 may be fixed to the inner peripheral surface of the insertion hole 41 of the housing case portion 43 by, for example, adhesion, or, for example, the inner tubular portion 46, the outer tubular portion 47, and one of the coverings of the housing case portion 43. It may be fixed when the annular plate portion 48A is molded.
In the state where the cylindrical member 4 is attached to the current measuring unit 3 as described above, both end portions in the axial direction of the cylindrical member 4 (the first end portion 4A and the second end portion 4B) are connected to the current measuring unit 3. The opening end of the insertion hole 41 may be flush with the opening end, or may protrude from the opening end of the insertion hole 41.

収容ケース部４３の一方の被覆環状板部４８Ａ側に位置する筒状部材４の軸方向の第一端部４Ａは、前述した一次側コイル５の第一端子板部１６Ａ（引出板部１２）のうち厚さ方向に直交する主面に当接している。本実施形態では、第一端子板部１６Ａの貫通孔１７が筒状部材４の内部に連通するように、筒状部材４の第一端部４Ａが第一端子板部１６Ａの主面に当接している。これにより、一次側コイル５の第一端子板部１６Ａと筒状部材４とが電気接続される。また、第一端子板部１６Ａと筒状部材４とが電気接続されることで、筒状部材４がカレントトランスの一次巻線として機能し、電流計測部３により一次側コイル５に流れる交流電流を計測することができる。 The first end portion 4A in the axial direction of the tubular member 4 located on the one coated annular plate portion 48A side of the housing case portion 43 is the first terminal plate portion 16A (drawer plate portion 12) of the primary coil 5 described above. Of these, it is in contact with the main surface orthogonal to the thickness direction. In the present embodiment, the first end portion 4A of the cylindrical member 4 contacts the main surface of the first terminal plate portion 16A so that the through hole 17 of the first terminal plate portion 16A communicates with the inside of the cylindrical member 4. It touches. Thereby, the first terminal plate portion 16A of the primary coil 5 and the tubular member 4 are electrically connected. In addition, the first terminal plate portion 16A and the tubular member 4 are electrically connected, so that the tubular member 4 functions as a primary winding of the current transformer, and an alternating current flowing through the primary coil 5 by the current measuring unit 3. Can be measured.

本実施形態では、収容ケース部４３が一次側コイル５の第一端子板部１６Ａに固定されている。これにより、筒状部材４の第一端部４Ａと第一端子板部１６Ａとの当接状態が保持されている。第一端子板部１６Ａは、収容ケース部４３の一方の被覆環状板部４８Ａに対して、例えば接着により固定されてもよいし、例えば収容ケース部４３の内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａを成形する際に固定されてもよい。 In the present embodiment, the housing case portion 43 is fixed to the first terminal plate portion 16 A of the primary side coil 5. Thereby, the contact state of 4 A of 1st end parts and the 1st terminal board part 16A of the cylindrical member 4 is hold | maintained. The first terminal plate portion 16A may be fixed, for example, by bonding to one of the covering annular plate portions 48A of the housing case portion 43. For example, the inner tubular portion 46, the outer tubular portion of the housing case portion 43 may be used. 47 and one of the coated annular plate portions 48A may be fixed.

また、本実施形態では、収容ケース部４３がトランス２に固定されている。収容ケース部４３の内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａは、トランス２の樹脂部７と一体に成形されている。収容ケース部４３の内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａを構成する樹脂材料は、樹脂部７と同じであってもよいが、例えば異なっていてもよい。この場合、内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａを構成する樹脂材料は、樹脂部７を構成する樹脂材料よりも耐熱性が高くてもよい。 In the present embodiment, the housing case portion 43 is fixed to the transformer 2. The inner cylindrical portion 46, the outer cylindrical portion 47, and one coated annular plate portion 48 A of the housing case portion 43 are formed integrally with the resin portion 7 of the transformer 2. Although the resin material which comprises the inner side cylindrical part 46, the outer side cylindrical part 47, and one coating | coated cyclic | annular board part 48A of the storage case part 43 may be the same as the resin part 7, it may differ, for example. In this case, the resin material constituting the inner cylindrical portion 46, the outer cylindrical portion 47 and the one coated annular plate portion 48 A may have higher heat resistance than the resin material constituting the resin portion 7.

以上のように構成される本実施形態のトランスモジュール１は、例えば図４に示すように、各種装置の搭載部５０に搭載される。
本実施形態の搭載部５０は、配線パターンが形成された配線基板５１と、配線基板５１の上面５１ａ（搭載面）に設けられて一次側コイル５及び二次側コイル６の各引出板部１２，２２（端子板部１５Ａ，１６Ａ，２５Ａ〜２５Ｃ）をネジ止めにより配線基板５１に固定するための雌ねじ部５２と、を備える。 The transformer module 1 of the present embodiment configured as described above is mounted on a mounting unit 50 of various devices, for example, as shown in FIG.
The mounting portion 50 of the present embodiment is provided on the wiring substrate 51 on which a wiring pattern is formed and the upper surface 51a (mounting surface) of the wiring substrate 51, and the lead plate portions 12 of the primary side coil 5 and the secondary side coil 6. , 22 (terminal plate portions 15A, 16A, 25A to 25C) are fixed to the wiring substrate 51 by screwing.

配線基板５１は、任意であってよいが、例えば熱伝導性に優れる銅基板やアルミナ基板であることが好ましい。雌ねじ部５２は、配線基板５１上に固定された台座部５３と、台座部５３に取り付けられたナット５４と、を備える。台座部５３は上方に開口する孔部５５を有する。ナット５４は、台座部５３の孔部５５の開口端部に固定されている。
また、搭載部５０は、配線基板５１の上面５１ａから雌ねじ部５２のナット５４上まで延びて形成され、一次側コイル５及び二次側コイル６の各端子板部を配線基板５１に電気接続させるための配線板部５６（バスバー）を備える。配線板部５６の長手方向の第一端部はナット５４上に配される。配線板部５６の第二端部は、配線基板５１上に配され、はんだ付け等により配線基板５１の配線パターンと電気接続される。 The wiring board 51 may be arbitrary, but is preferably a copper board or an alumina board having excellent thermal conductivity, for example. The female screw portion 52 includes a pedestal portion 53 fixed on the wiring board 51 and a nut 54 attached to the pedestal portion 53. The pedestal 53 has a hole 55 that opens upward. The nut 54 is fixed to the opening end portion of the hole portion 55 of the pedestal portion 53.
The mounting portion 50 is formed to extend from the upper surface 51 a of the wiring substrate 51 to the nut 54 of the female screw portion 52, and electrically connects the terminal plate portions of the primary side coil 5 and the secondary side coil 6 to the wiring substrate 51. Wiring board part 56 (bus bar) is provided. A first end portion in the longitudinal direction of the wiring board portion 56 is disposed on the nut 54. The second end portion of the wiring board portion 56 is disposed on the wiring substrate 51 and is electrically connected to the wiring pattern of the wiring substrate 51 by soldering or the like.

次に、上記した搭載部５０にトランスモジュール１を取り付ける方法（取付方法）について述べる。ここでは、特に一次側コイル５の第一端子板部１６Ａを搭載部５０に対して機械的に固定すると共に、電気的に接続する方法について説明する。一次側コイル５の他の端子板部１５Ａ（引出板部１２）及び二次側コイル６の端子板部２５Ａ〜２５Ｃ（引出板部２２）の機械的な固定、電気的な接続は、第一端子板部１６Ａの場合と同様に行うことができるため、その説明を省略する。 Next, a method (attachment method) for attaching the transformer module 1 to the mounting portion 50 will be described. Here, a method for mechanically fixing and electrically connecting the first terminal plate portion 16A of the primary coil 5 to the mounting portion 50 will be described. The mechanical fixing and electrical connection of the other terminal plate portion 15A (drawer plate portion 12) of the primary coil 5 and the terminal plate portions 25A to 25C (drawer plate portion 22) of the secondary coil 6 are as follows. Since it can be performed similarly to the case of the terminal plate portion 16A, the description thereof is omitted.

一次側コイル５の第一端子板部１６Ａを搭載部５０に固定するためには、ネジ（雄ねじ）６０の軸部６１を第一端子板部１６Ａの貫通孔１７及び筒状部材４に挿通させた上で、搭載部５０のナット５４に螺着させればよい。これにより、第一端子板部１６Ａ及び筒状部材４が、ネジ６０の頭部６２と搭載部５０（特にナット５４）との間に挟み込まれて搭載部５０に固定される。
また、筒状部材４の軸方向の第二端部４Ｂとナット５４との間には、配線板部５６の第二端部が介在しているため、上記のようにネジ止めした状態では、筒状部材４の第二端部４Ｂが配線板部５６の第二端部に当接する。これにより、一次側コイル５の第一端子板部１６Ａが、筒状部材４及び配線板部５６を介して配線基板５１の配線パターンに電気接続される。 In order to fix the first terminal plate portion 16A of the primary coil 5 to the mounting portion 50, the shaft portion 61 of the screw (male screw) 60 is inserted through the through hole 17 and the tubular member 4 of the first terminal plate portion 16A. In addition, it may be screwed onto the nut 54 of the mounting portion 50. As a result, the first terminal plate portion 16A and the cylindrical member 4 are sandwiched between the head portion 62 of the screw 60 and the mounting portion 50 (particularly the nut 54) and fixed to the mounting portion 50.
In addition, since the second end portion of the wiring board portion 56 is interposed between the second end portion 4B in the axial direction of the tubular member 4 and the nut 54, in the state of being screwed as described above, The second end 4 B of the cylindrical member 4 abuts on the second end of the wiring board 56. Thereby, the first terminal plate portion 16 A of the primary coil 5 is electrically connected to the wiring pattern of the wiring substrate 51 through the tubular member 4 and the wiring plate portion 56.

以上説明したように、本実施形態のトランスモジュール１によれば、電流計測部３に挿通された筒状部材４の第一端部４Ａに一次側コイル５の第一端子板部１６Ａを当接させ、筒状部材４の第二端部４Ｂを搭載部５０（配線板部５６）に当接させることで、一次側コイル５の第一端子板部１６Ａを搭載部５０に対して機械的に固定したり電気的に接続したりすることができる。このため、一次側コイル５の第一端子板部１６Ａから搭載部５０に至る一次側コイル５の放熱経路を短く設定でき、一次側コイル５の放熱効率の向上を図ることができる。
また、電流計測部３の挿通孔４１に挿通された筒状部材４の第二端部４Ｂが、搭載部５０に接続、固定される一次側コイル５の端子部をなす。すなわち、一次側コイル５の端子部が電流計測部３と一体に設けられるため、トランスモジュール１の小型化を容易に図ることができる。さらに、一次側コイル５の端子部が電流計測部３と一体に設けられることで、一次側コイル５の端子部と電流計測部３とが近くに位置するため、搭載部５０に対するトランスモジュール１の搭載面積の縮小も図ることもできる。 As described above, according to the transformer module 1 of the present embodiment, the first terminal plate portion 16 A of the primary coil 5 is brought into contact with the first end portion 4 A of the cylindrical member 4 inserted through the current measuring unit 3. Then, the second end 4B of the cylindrical member 4 is brought into contact with the mounting portion 50 (wiring board portion 56), whereby the first terminal plate portion 16A of the primary coil 5 is mechanically connected to the mounting portion 50. It can be fixed or electrically connected. For this reason, the heat dissipation path of the primary side coil 5 from the first terminal plate portion 16A of the primary side coil 5 to the mounting portion 50 can be set short, and the heat dissipation efficiency of the primary side coil 5 can be improved.
Further, the second end portion 4B of the cylindrical member 4 inserted through the insertion hole 41 of the current measuring unit 3 forms a terminal portion of the primary coil 5 that is connected to and fixed to the mounting unit 50. That is, since the terminal part of the primary coil 5 is provided integrally with the current measuring part 3, the transformer module 1 can be easily downsized. Furthermore, since the terminal part of the primary side coil 5 is provided integrally with the current measurement part 3, the terminal part of the primary side coil 5 and the current measurement part 3 are located close to each other. The mounting area can also be reduced.

さらに、本実施形態のトランスモジュール１では、一次側コイル５の端子部をなす筒状部材４が電流計測部３と一体に設けられる上に、トランス２から電流計測部３に向けて延びる一次側コイル５の第一端子板部１６Ａが、従来のコイルの引出線部のような可撓性を有さない。このため、筒状部材４の第二端部４Ｂを搭載部５０に対して接続、固定する際には、従来のような位置決め用の治具を設ける必要が無くなる。すなわち、トランスモジュール１を搭載部５０に取り付ける際には、従来のような余分な工数が不要となり、搭載部５０に対するトランスモジュール１の取付効率を向上させることができる。 Furthermore, in the transformer module 1 of the present embodiment, the tubular member 4 that forms the terminal portion of the primary coil 5 is provided integrally with the current measurement unit 3, and the primary side extends from the transformer 2 toward the current measurement unit 3. The first terminal plate portion 16A of the coil 5 does not have flexibility like the conventional lead wire portion of the coil. For this reason, when connecting and fixing the 2nd end part 4B of the cylindrical member 4 with respect to the mounting part 50, it becomes unnecessary to provide the positioning jig like the past. That is, when the transformer module 1 is attached to the mounting portion 50, an extra man-hour as in the prior art becomes unnecessary, and the efficiency of attaching the transformer module 1 to the mounting portion 50 can be improved.

また、本実施形態のトランスモジュール１によれば、一次側コイル５の第一端子板部１６Ａ及び筒状部材４がネジ６０を挿通させるように形成されているため、一次側コイル５の第一端子板部１６Ａ、筒状部材４及び電流計測部３をネジ止めによって容易に搭載部５０に一括固定することができる。
さらに、一次側コイル５の第一端子板部１６Ａ及び筒状部材４をネジ止めによって搭載部５０に固定する場合には、第一端子板部１６Ａ及び筒状部材４がネジ６０の頭部６２と搭載部５０との間に挟み込まれるため、筒状部材４の第一端部４Ａを確実に第一端子板部１６Ａの主面に当接させることができる。したがって、第一端子板部１６Ａと筒状部材４との導通を確実に図ることができる。また、ネジ止め固定の場合には、筒状部材４の第二端部４Ｂを確実に搭載部５０（配線板部５６）に当接させ、筒状部材４と搭載部５０（配線板部５６）との導通も確実に図ることができる。 Further, according to the transformer module 1 of the present embodiment, the first terminal plate portion 16A of the primary side coil 5 and the tubular member 4 are formed so as to allow the screw 60 to pass therethrough. The terminal plate portion 16A, the cylindrical member 4 and the current measuring portion 3 can be easily fixed to the mounting portion 50 by screwing.
Further, when the first terminal plate portion 16A and the cylindrical member 4 of the primary coil 5 are fixed to the mounting portion 50 by screwing, the first terminal plate portion 16A and the cylindrical member 4 are the heads 62 of the screws 60. Therefore, the first end portion 4A of the cylindrical member 4 can be reliably brought into contact with the main surface of the first terminal plate portion 16A. Therefore, conduction between the first terminal plate portion 16A and the tubular member 4 can be ensured. Further, in the case of fixing with screws, the second end 4B of the cylindrical member 4 is securely brought into contact with the mounting portion 50 (wiring board portion 56), and the cylindrical member 4 and the mounting portion 50 (wiring board portion 56). ) Can be reliably established.

また、本実施形態のトランスモジュール１によれば、筒状部材４が電流計測部３の収容ケース部４３に一体に固定されるため、筒状部材４及び電流計測部３の取り扱いが容易となる。さらに、一次側コイル５の第一端子板部１６Ａに対する収容ケース部４３（電流計測部３）の固定、及び、筒状部材４の第一端部４Ａの当接を一括して行うことが可能となる。したがって、トランスモジュール１の製造効率向上を図ることができる。 Further, according to the transformer module 1 of the present embodiment, since the cylindrical member 4 is integrally fixed to the housing case portion 43 of the current measuring unit 3, the cylindrical member 4 and the current measuring unit 3 can be easily handled. . Further, the housing case 43 (current measuring unit 3) can be fixed to the first terminal plate 16A of the primary coil 5 and the first end 4A of the tubular member 4 can be brought into contact with the first terminal plate 16A. It becomes. Therefore, the manufacturing efficiency of the transformer module 1 can be improved.

また、本実施形態のトランスモジュール１によれば、一次側コイル５の第一端子板部１６Ａが収容ケース部４３に固定されるため、第一端子板部１６Ａ及び電流計測部３を一括して搭載部５０上に配することが可能となる。これにより、搭載部５０に対するトランスモジュール１の取り付け工数を削減して、取り付け作業を容易に行うことができる。 Moreover, according to the transformer module 1 of the present embodiment, since the first terminal plate portion 16A of the primary side coil 5 is fixed to the housing case portion 43, the first terminal plate portion 16A and the current measuring unit 3 are integrated together. It can be arranged on the mounting unit 50. As a result, the number of steps for mounting the transformer module 1 to the mounting portion 50 can be reduced, and the mounting work can be easily performed.

また、本実施形態のトランスモジュール１によれば、電流計測部３の収容ケース部４３がトランス２の樹脂部７と一体に成形されている。これにより、収容ケース部４３及び樹脂部７を一つの金型で成形することが可能となるため、収容ケース部４３及び樹脂部７を別個に成形する場合と比較して、トランスモジュール１の製造コスト削減を図ることができる。 Further, according to the transformer module 1 of the present embodiment, the housing case portion 43 of the current measuring unit 3 is formed integrally with the resin portion 7 of the transformer 2. Thereby, since it becomes possible to shape | mold the accommodation case part 43 and the resin part 7 with one metal mold | die, compared with the case where the accommodation case part 43 and the resin part 7 are shape | molded separately, manufacture of the transformer module 1 is possible. Cost reduction can be achieved.

さらに、本実施形態のトランスモジュール１では、電流計測部３の収容ケース部４３が耐熱性を有する樹脂材料からなるため、計測部本体４２の二次巻線４５の引出線部を外部端子部４９にはんだ付けしても、収容ケース部４３がはんだ付けによる熱によって変形することを防止できる。 Furthermore, in the transformer module 1 of the present embodiment, the housing case portion 43 of the current measuring portion 3 is made of a heat-resistant resin material, and therefore the lead wire portion of the secondary winding 45 of the measuring portion main body 42 is connected to the external terminal portion 49. Even if soldering is performed, it is possible to prevent the housing case portion 43 from being deformed by heat due to soldering.

〔第二実施形態〕
次に、図５を参照して本発明の第二実施形態について説明する。
この実施形態のトランスモジュール１は、第一実施形態のトランスモジュール１と比較して、主に一次側コイル５の第一端子板部と収容ケース部との固定構造が異なっている。本実施形態では、第一実施形態のトランスモジュール１と同一の構成要素について同一符号を付す等して、その説明を省略する。 [Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIG.
The transformer module 1 of this embodiment differs from the transformer module 1 of the first embodiment mainly in the fixing structure of the first terminal plate portion of the primary coil 5 and the housing case portion. In the present embodiment, the same components as those of the transformer module 1 of the first embodiment are denoted by the same reference numerals and the description thereof is omitted.

図５に示すように、本実施形態の電流計測部３の収容ケース部４３には、一次側コイル５の第一端子板部１６Ａに係合する係合爪部７０が形成されている。以下、具体的に説明する。
本実施形態の電流計測部３の収容ケース部４３は、第一実施形態と同様の内側筒状部４６、外側筒状部４７及び一対の被覆環状板部４８Ａ，４８Ｂを備える。また、内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａは、耐熱性を有する樹脂材料によって一体に形成され、ケース本体４０を構成している。さらに、他方の被覆環状板部４８Ｂは、絶縁シート等からなり、内側筒状部４６、外側筒状部４７及び一方の被覆環状板部４８Ａと別個に形成されている。 As shown in FIG. 5, an engaging claw portion 70 that engages with the first terminal plate portion 16 A of the primary side coil 5 is formed in the housing case portion 43 of the current measuring portion 3 of the present embodiment. This will be specifically described below.
The housing case portion 43 of the current measuring unit 3 of the present embodiment includes an inner cylindrical portion 46, an outer cylindrical portion 47, and a pair of coated annular plate portions 48A and 48B similar to the first embodiment. Further, the inner cylindrical portion 46, the outer cylindrical portion 47, and the one coated annular plate portion 48 A are integrally formed of a heat-resistant resin material and constitute the case body 40. Further, the other coated annular plate portion 48B is made of an insulating sheet or the like, and is formed separately from the inner tubular portion 46, the outer tubular portion 47, and the one coated annular plate portion 48A.

前述した係合爪部７０は、ケース本体４０の開口端部をなす外側筒状部４７の端部から収容ケース部４３の軸方向に延びて形成されている。本実施形態では、係合爪部７０が外側筒状部４７の径方向に相対する位置に一対形成されている。各係合爪部７０は、外側筒状部４７に対してその径方向に弾性的に撓み変形可能となっている。各係合爪部７０の先端には、第一端子板部１６Ａに引っ掛けるための鉤部７１が形成されている。各鉤部７１は、外側筒状部４７に対して収容ケース部４３の径方向外側に突出している。
この収容ケース部４３は、ケース本体４０の開口端部が第一端子板部１６Ａの主面に対向するように配される。 The engagement claw portion 70 described above is formed to extend in the axial direction of the housing case portion 43 from the end portion of the outer cylindrical portion 47 that forms the open end portion of the case main body 40. In the present embodiment, a pair of engaging claws 70 are formed at positions facing the radial direction of the outer cylindrical portion 47. Each engaging claw portion 70 is elastically bent and deformable in the radial direction with respect to the outer cylindrical portion 47. At the tip of each engaging claw portion 70, a flange portion 71 is formed for hooking on the first terminal plate portion 16A. Each flange 71 protrudes outward in the radial direction of the housing case 43 with respect to the outer cylindrical portion 47.
The housing case portion 43 is arranged such that the opening end portion of the case body 40 faces the main surface of the first terminal plate portion 16A.

一方、第一端子板部１６Ａには、上記した一対の係合爪部７０をそれぞれ挿通させる一対の係合孔部１８が形成されている。
そして、係合爪部７０を係合孔部１８に挿通させた状態では、係合爪部７０の鉤部７１が第一端子板部１６Ａの主面と反対側の面（裏面）に当接する。これにより、収容ケース部４３が第一端子板部１６Ａに取り付けられる。また、係合爪部７０の鉤部７１が第一端子板部１６Ａの裏面に当接した状態では、例えば図５のように、収容ケース部４３に固定された筒状部材４の第一端部４Ａが第一端子板部１６Ａの主面に当接してもよい。この場合には、収容ケース部４３を第一端子板部１６Ａに取り付けるだけで、第一端子板部１６Ａと筒状部材４とを電気接続できる。 On the other hand, the first terminal plate portion 16A is formed with a pair of engagement hole portions 18 through which the pair of engagement claw portions 70 described above are inserted.
Then, in a state where the engaging claw portion 70 is inserted through the engaging hole portion 18, the flange portion 71 of the engaging claw portion 70 contacts the surface (back surface) opposite to the main surface of the first terminal plate portion 16A. . Thereby, the accommodation case part 43 is attached to the first terminal plate part 16A. Further, in a state where the flange portion 71 of the engagement claw portion 70 is in contact with the back surface of the first terminal plate portion 16A, for example, as shown in FIG. 5, the first end of the cylindrical member 4 fixed to the housing case portion 43 is used. The portion 4A may abut on the main surface of the first terminal plate portion 16A. In this case, the first terminal plate portion 16A and the tubular member 4 can be electrically connected by simply attaching the housing case portion 43 to the first terminal plate portion 16A.

本実施形態のトランスモジュールによれば、第一実施形態と同様の効果を奏する。
また、本実施形態のトランスモジュールによれば、係合爪部７０によって収容ケース部４３と第一端子板部１６Ａとを係合させるだけで、電流計測部３を容易に第一端子板部１６Ａに取り付ける（固定する）ことができる。また、第一端子板部１６Ａと筒状部材４とを容易に電気接続することが可能となる。 According to the transformer module of the present embodiment, the same effects as those of the first embodiment can be obtained.
Further, according to the transformer module of the present embodiment, the current measuring unit 3 can be easily connected to the first terminal plate portion 16A simply by engaging the housing case portion 43 and the first terminal plate portion 16A with the engaging claw portion 70. It can be attached to (fixed). In addition, the first terminal plate portion 16A and the cylindrical member 4 can be easily electrically connected.

以上、上記実施形態により本発明の詳細を説明したが、本発明は上述した実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲において種々の変更を加えることが可能である。
例えば、上記実施形態では、筒状部材４が電流計測部３の挿通孔４１内に固定されるが、特に固定されなくてもよい。この場合でも図４に例示した第一実施形態の場合と同様にネジ止めすることで、一次側コイル５の第一端子板部１６Ａと搭載部５０（配線板部５６）との間に、筒状部材４を挟み込んで固定することができる。 As mentioned above, although the detail of this invention was demonstrated by the said embodiment, this invention is not limited to embodiment mentioned above, A various change can be added in the range which does not deviate from the meaning of this invention.
For example, in the above embodiment, the cylindrical member 4 is fixed in the insertion hole 41 of the current measuring unit 3, but it need not be particularly fixed. Even in this case, by screwing in the same manner as in the case of the first embodiment illustrated in FIG. 4, a cylinder is provided between the first terminal plate portion 16 A of the primary coil 5 and the mounting portion 50 (wiring board portion 56). The shaped member 4 can be sandwiched and fixed.

また、上記実施形態では、電流計測部３の挿通孔４１内に導電性を有する筒状部材４が固定されるが、例えば導電性を有する棒状部材が固定されてもよい。この場合でも、例えば棒状部材に雌ねじを形成することで、電流計測部３及びこれに固定された一次側コイル５の第一端子板部１６Ａを搭載部５０にネジ止めにより固定することが可能である。 Moreover, in the said embodiment, although the cylindrical member 4 which has electroconductivity is fixed in the insertion hole 41 of the electric current measurement part 3, the rod-shaped member which has electroconductivity may be fixed, for example. Even in this case, for example, by forming a female screw on the rod-shaped member, it is possible to fix the current measuring unit 3 and the first terminal plate portion 16A of the primary coil 5 fixed thereto to the mounting unit 50 by screwing. is there.

さらに、上記実施形態の電流計測部３は、一次側コイル５に流れる交流電流を計測するように設けられているが、例えば二次側コイル６に流れる交流電流を計測するように設けられてもよい。この場合には、上記実施形態と同様にして、電流計測部３が二次側コイル６の引出板部２２（端子板部２５Ａ〜２５Ｃ）に取り付けられればよい。 Furthermore, although the current measuring unit 3 of the above embodiment is provided to measure the alternating current flowing through the primary side coil 5, for example, even if provided to measure the alternating current flowing through the secondary side coil 6. Good. In this case, the current measurement unit 3 may be attached to the extraction plate portion 22 (terminal plate portions 25A to 25C) of the secondary coil 6 in the same manner as in the above embodiment.

上記実施形態の電流計測部３の計測部本体４２は、カレントトランス２を構成しているが、これに限ることはない。計測部本体４２は、例えば特開２０１３−２６５９７号公報と同様のホールセンサであってもよい。 The measurement unit main body 42 of the current measurement unit 3 of the above embodiment constitutes the current transformer 2, but is not limited thereto. The measurement unit main body 42 may be a Hall sensor similar to that disclosed in JP 2013-26597 A, for example.

また、一次側コイル５を構成する二組の直列渦巻きユニット１４Ａ，１４Ｂは、並列に接続されることに限らず、例えば直列に接続されてもよい。さらに、一次側コイル５を構成する渦巻き板部１１の数は上記実施形態のものに限らず、少なくとも二つ以上であればよい。 Moreover, the two sets of series spiral units 14A and 14B constituting the primary coil 5 are not limited to being connected in parallel, and may be connected in series, for example. Furthermore, the number of the spiral plate portions 11 constituting the primary coil 5 is not limited to that of the above embodiment, and may be at least two.

１トランスモジュール
２トランス
３電流計測部
４筒状部材（棒状部材）
４Ａ第一端部
４Ｂ第二端部
５一次側コイル
６二次側コイル
７樹脂部
１１渦巻き板部（巻回部分）
１２引出板部
１５，１５Ａ，１５Ｂ，１６，１６Ａ，１６Ｂ端子板部
１７貫通孔
２１リング板部（巻回部分）
２２引出板部
２５Ａ，２５Ｂ，２５Ｃ端子板部
４１挿通孔
４２計測部本体
４３収容ケース部
７０係合爪部 DESCRIPTION OF SYMBOLS 1 Transformer module 2 Transformer 3 Current measurement part 4 Cylindrical member (bar-shaped member)
4A First end portion 4B Second end portion 5 Primary side coil 6 Secondary side coil 7 Resin portion 11 Spiral plate portion (winding portion)
12 Drawing board part 15, 15A, 15B, 16, 16A, 16B Terminal board part 17 Through-hole 21 Ring board part (winding part)
22 Drawing board part 25A, 25B, 25C Terminal board part 41 Insertion hole 42 Measuring part main body 43 Housing case part 70 Engagement claw part

Claims

A transformer having a primary side coil and a secondary side coil, and a current which is formed in a cylindrical shape and has an insertion hole and which measures an alternating current flowing in at least one of the primary side coil and the secondary side coil A transformer module comprising a measuring unit,
A rod-shaped member that has conductivity and is inserted into the insertion hole of the current measurement unit,
The one coil includes a plate-like drawing plate portion that is drawn to the outside from the winding portion,
The drawer plate portion and the rod member are electrically connected by bringing the first end portion in the axial direction of the rod-like member into contact with the main surface perpendicular to the thickness direction of the drawer plate portion of the one coil. A transformer module characterized by that.

The rod-shaped member is a cylindrical member extending in the axial direction of the insertion hole,
A through-hole penetrating in the thickness direction is formed in the drawing plate portion of the one coil,
The first end portion in the axial direction of the cylindrical member is brought into contact with the main surface of the drawer plate portion so that the through hole communicates with the inside of the cylindrical member. Transformer module.

The current measurement unit includes a measurement unit main body, and a cylindrical storage case unit that stores the measurement unit main body and has the insertion hole,
The transformer module according to claim 1, wherein the rod-shaped member is integrally fixed to the housing case part.

The current measurement unit includes a measurement unit main body, and a cylindrical storage case unit that stores the measurement unit main body and has the insertion hole,
The transformer module according to any one of claims 1 to 3, wherein the housing case part is fixed to the drawer plate part.

The transformer includes a resin part that seals and fixes the primary side coil and the secondary side coil integrally,
The transformer module according to claim 4, wherein the housing case part is formed integrally with the resin part.

5. The transformer module according to claim 4, wherein an engagement claw portion that engages with the other of the storage case portion and the drawer plate portion is formed in one of the storage case portion and the drawer plate portion. .