JP2022066811A - Terminal block - Google Patents

Terminal block Download PDF

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JP2022066811A
JP2022066811A JP2020175356A JP2020175356A JP2022066811A JP 2022066811 A JP2022066811 A JP 2022066811A JP 2020175356 A JP2020175356 A JP 2020175356A JP 2020175356 A JP2020175356 A JP 2020175356A JP 2022066811 A JP2022066811 A JP 2022066811A
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conductive member
terminal block
housing
fastening portion
terminal
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英二 青樹
Eiji Aoki
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Yazaki Corp
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Yazaki Corp
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Abstract

To provide a terminal block that can be easily made compact.SOLUTION: A terminal block 11 comprises a housing 13 fitted to a fitting object portion, and a conductive member 10 inserted into a terminal insertion hole 30 of the housing 13 and having a first fastening portion 51 and a second fastening portion 61 at both end portions. The conductive member 10 has a round rod-shaped first conductive member 50 having the first fastening portion 51 formed at one end and a round rod-shaped second conductive member 60 having the second fastening portion 61 formed at one end, the other end of the first conductive member 50 and the other end of the second conductive member 60 is coupled detachably by a coupling mechanism 70.SELECTED DRAWING: Figure 4

Description

本発明は、端子台に関する。 The present invention relates to a terminal block.

例えば、車両のボディパネルや機器類のケースに装着される端子台は、端子として複数のバスバーが並列に並べてハウジングに装着されている。（例えば、特許文献１～３参照）。 For example, in a terminal block mounted on a vehicle body panel or a case of equipment, a plurality of bus bars are arranged in parallel as terminals and mounted on a housing. (See, for example, Patent Documents 1 to 3).

また、バスバーを内方で囲い、このバスバーに流れる電流に応じた磁束を発生させる磁気コア部材と、この磁気コア部材の磁束に応じた信号を出力するホール素子と、を備える電流センサが知られている（例えば、特許文献４～６参照）。 Further, a current sensor including a magnetic core member that surrounds a bus bar inside and generates a magnetic flux according to the current flowing through the bus bar, and a Hall element that outputs a signal corresponding to the magnetic flux of the magnetic core member is known. (For example, see Patent Documents 4 to 6).

特開２０１７－１８８２８９号公報Japanese Unexamined Patent Publication No. 2017-188289 特開２０１８－７３６５２号公報Japanese Unexamined Patent Publication No. 2018-73652 特開２０１０－２１１９３３号公報Japanese Unexamined Patent Publication No. 2010-21933 特開２０１６－６３９９号公報Japanese Unexamined Patent Publication No. 2016-6399 特開２０１８－１８９５０３号公報Japanese Unexamined Patent Publication No. 2018-189503 特開２０１８－１８９５０４号公報Japanese Unexamined Patent Publication No. 2018-189504

特許文献１～３に記載された端子台のように、複数のバスバーからなる導電部材を備えた端子台では、バスバー同士のピッチを極力小さくして小型化を図ることが望まれる。
しかしながら、バスバーに流れる電流を検出すべく、平板状で幅広のバスバーの周囲を囲うように磁気コア部材を設けた場合、隣り合う磁気コア部材同士の間にクリアランスを確保しなければならない。その為、バスバー同士のピッチを小さくして端子台を小型化するのが困難であった。このため、端子を挿着する箇所のスペースを極力小さくして端子台を小型化することが要望されている。 In a terminal block provided with a conductive member composed of a plurality of bus bars, such as the terminal blocks described in Patent Documents 1 to 3, it is desired to reduce the pitch between the bus bars as much as possible to reduce the size.
However, when the magnetic core member is provided so as to surround the flat and wide bus bar in order to detect the current flowing through the bus bar, it is necessary to secure a clearance between the adjacent magnetic core members. Therefore, it is difficult to reduce the size of the terminal block by reducing the pitch between the bus bars. Therefore, it is required to reduce the size of the terminal block by making the space at the place where the terminal is inserted as small as possible.

本発明は、上述した事情に鑑みてなされたものであり、その目的は、容易に小型化を図ることが可能な端子台を提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a terminal block that can be easily miniaturized.

本発明の上記目的は、下記構成により達成される。
（１） 被取付部に取り付けられるハウジングと、
前記ハウジングの端子挿通孔に挿着されて、両端部に第１締結部及び第２締結部を有する導電部材と、を備え、
前記導電部材は、一端に前記第１締結部が形成された棒状の第１導電部材と、一端に前記第２締結部が形成された棒状の第２導電部材とを有し、
前記第１導電部材の他端と前記第２導電部材の他端とが、連結機構で着脱自在に連結されている、ことを特徴とする端子台。 The above object of the present invention is achieved by the following configuration.
(1) The housing to be attached to the attached part and
A conductive member that is inserted into the terminal insertion hole of the housing and has a first fastening portion and a second fastening portion at both ends thereof is provided.
The conductive member has a rod-shaped first conductive member having the first fastening portion formed on one end thereof, and a rod-shaped second conductive member having the second fastening portion formed on one end thereof.
A terminal block characterized in that the other end of the first conductive member and the other end of the second conductive member are detachably connected by a connecting mechanism.

上記（１）の構成の端子台によれば、棒状の第１導電部材の他端と棒状の第２導電部材の他端とが連結機構で連結された導電部材をハウジングの端子挿通孔に挿着している。したがって、平板状で幅広のバスバーを導電部材として用いる場合と比べ、導電部材の挿着箇所のスペースを小さくすることができ、端子台を容易に小型化することができる。 According to the terminal block having the configuration of (1) above, the conductive member in which the other end of the rod-shaped first conductive member and the other end of the rod-shaped second conductive member are connected by a connecting mechanism is inserted into the terminal insertion hole of the housing. I'm wearing it. Therefore, as compared with the case where a flat plate-shaped and wide bus bar is used as the conductive member, the space for inserting the conductive member can be reduced, and the terminal block can be easily miniaturized.

（２） 前記連結機構は、接点の電気抵抗を抑えるためのコンタクトばねを有する、ことを特徴とする上記（１）に記載の端子台。 (2) The terminal block according to (1) above, wherein the connecting mechanism has a contact spring for suppressing the electrical resistance of the contact.

上記（２）の構成の端子台によれば、連結機構に設けたコンタクトばねによって、第１導電部材の他端と第２導電部材の他端との連結箇所における接点の電気抵抗を抑えることができる。即ち、第１導電部材と第２導電部材とが良好に導通された導電部材を備える端子台とすることができる。 According to the terminal block having the configuration of (2) above, the contact spring provided in the connecting mechanism can suppress the electrical resistance of the contact at the connecting point between the other end of the first conductive member and the other end of the second conductive member. can. That is, the terminal block can be provided with a conductive member in which the first conductive member and the second conductive member are satisfactorily conducted.

（３） 前記第１導電部材の外周面には、前記ハウジングに対して回り止めされる回り止め機構が設けられる、ことを特徴とする上記（１）または（２）に記載の端子台。 (3) The terminal block according to (1) or (2) above, wherein a detent mechanism for detenting the housing is provided on the outer peripheral surface of the first conductive member.

上記（３）の構成の端子台によれば、回り止め機構によって導電部材の第１導電部材がハウジングに対して回り止めされるので、第１導電部材への配線作業を容易に行うことができる。 According to the terminal block having the configuration of (3) above, the first conductive member of the conductive member is prevented from rotating with respect to the housing by the detent mechanism, so that the wiring work to the first conductive member can be easily performed. ..

（４） 前記第１導電部材の外周側には、磁気コアが配置される、ことを特徴とする上記（１）～（３）の何れか一つに記載の端子台。 (4) The terminal block according to any one of (1) to (3) above, wherein a magnetic core is arranged on the outer peripheral side of the first conductive member.

上記（４）の構成の端子台によれば、第１導電部材の外周側に配置された磁気コアによって、導電部材に流れる電流を検出することができる。また、ハウジングにおける導電部材の挿着箇所のスペースを小さくすることができるので、磁気コアを設けて電流の検出を可能としつつ小型化を図ることができる。 According to the terminal block having the configuration of (4) above, the current flowing through the conductive member can be detected by the magnetic core arranged on the outer peripheral side of the first conductive member. Further, since the space at the insertion point of the conductive member in the housing can be reduced, the size can be reduced while the magnetic core can be provided to detect the current.

（５） 複数本の前記導電部材が、前記ハウジングに並列に配設される、ことを特徴とする上記（１）～（４）の何れか一つに記載の端子台。 (5) The terminal block according to any one of (1) to (4) above, wherein a plurality of the conductive members are arranged in parallel with the housing.

上記（５）の構成の端子台によれば、ハウジングにおける導電部材の挿着箇所のスペースを小さくすることができるので、ハウジングに導電部材を並列に配設しても配列方向の寸法を抑えて小型化を図ることができる。 According to the terminal block having the configuration of (5) above, the space for inserting the conductive members in the housing can be reduced, so that even if the conductive members are arranged in parallel in the housing, the dimensions in the arrangement direction can be suppressed. It is possible to reduce the size.

本発明によれば、容易に小型化を図ることが可能な端子台を提供できる。 According to the present invention, it is possible to provide a terminal block that can be easily miniaturized.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下、「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるであろう。 The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings. ..

本発明の一実施形態に係る端子台の斜視図である。It is a perspective view of the terminal block which concerns on one Embodiment of this invention. 本実施形態に係る端子台の分解斜視図である。It is an exploded perspective view of the terminal block which concerns on this embodiment. 本実施形態に係る端子台の正面図である。It is a front view of the terminal block which concerns on this embodiment. 図３におけるＡ－Ａ断面図である。FIG. 3 is a cross-sectional view taken along the line AA in FIG. 図３におけるＢ－Ｂ断面図である。FIG. 3 is a cross-sectional view taken along the line BB in FIG. 図３におけるＣ－Ｃ断面図である。FIG. 3 is a sectional view taken along the line CC in FIG. 端子台に組付けられる導電部材を説明する図であって、（ａ）及び（ｂ）はそれぞれ斜め上方及び斜め下方から視た分解斜視図である。It is a figure explaining the conductive member assembled to a terminal block, and (a) and (b) are the exploded perspective views seen from diagonally above and diagonally below, respectively. 端子台に組付けられる導電部材を説明する図であって、（ａ）は連結前における軸方向に沿う縦断面図、（ｂ）は連結状態における軸方向に沿う縦断面図及び一部拡大図である。It is a figure explaining the conductive member to be assembled to a terminal block, (a) is a vertical sectional view along the axial direction before connection, (b) is a vertical sectional view along the axial direction in a connected state, and a partially enlarged view. Is. 導電部材の組付け方を説明する端子台の要部の拡大斜視図である。It is an enlarged perspective view of the main part of the terminal block explaining how to assemble a conductive member. 参考例に係る端子台の斜視図である。It is a perspective view of the terminal block which concerns on a reference example. 参考例に係る端子台の縦断面図である。It is a vertical sectional view of the terminal block which concerns on a reference example. 導電部材の配列のピッチを説明する図であって、（ａ）は本実施形態に係る端子台における水平方向に沿う一部の断面図、（ｂ）は参考例に係る端子台における水平方向に沿う一部の断面図である。It is a figure explaining the pitch of the arrangement of the conductive member, (a) is a cross-sectional view of a part along the horizontal direction in the terminal block which concerns on this embodiment, (b) is the horizontal direction in the terminal block which concerns on a reference example. It is a cross-sectional view of a part along.

以下、本発明に係る実施の形態の例を、図面を参照して説明する。
図１は、本発明の一実施形態に係る端子台１１の斜視図である。図２は、本実施形態に係る端子台１１の分解斜視図である。図３は、本実施形態に係る端子台１１の正面図である。図４は、図３におけるＡ－Ａ断面図である。図５は、図３におけるＢ－Ｂ断面図である。 Hereinafter, examples of embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a terminal block 11 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the terminal block 11 according to the present embodiment. FIG. 3 is a front view of the terminal block 11 according to the present embodiment. FIG. 4 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a cross-sectional view taken along the line BB in FIG.

図１～図５に示すように、本実施形態に係る端子台１１は、ハウジング１３と、複数の導電部材１０とを備えている。導電部材１０は、端子台１１の端子としてハウジング１３に組付けられる。 As shown in FIGS. 1 to 5, the terminal block 11 according to the present embodiment includes a housing 13 and a plurality of conductive members 10. The conductive member 10 is assembled to the housing 13 as a terminal of the terminal block 11.

ハウジング１３は、絶縁性樹脂から成形されており、上方側が締結部２１とされ、下方側が組付部２３とされている。ハウジング１３は、締結部２１と組付部２３との間に、外周側へ張り出すフランジ部２５を有しており、このフランジ部２５には、複数のボルト挿通孔２７が形成されている。 The housing 13 is molded from an insulating resin, and the upper side is a fastening portion 21 and the lower side is an assembly portion 23. The housing 13 has a flange portion 25 projecting to the outer peripheral side between the fastening portion 21 and the assembly portion 23, and a plurality of bolt insertion holes 27 are formed in the flange portion 25.

端子台１１は、ハウジング１３の組付部２３が、駆動モータ等の機器等のケース（被取付部）１００に形成された取付孔１０２に嵌め込まれる。そして、この状態で、ハウジング１３のフランジ部２５のボルト挿通孔２７にボルト１０４を通してケース１００に形成されたネジ孔１０３にねじ込むことにより、端子台１１がケース１００に組付けられる。 In the terminal block 11, the assembly portion 23 of the housing 13 is fitted into a mounting hole 102 formed in a case (attached portion) 100 of a device such as a drive motor. Then, in this state, the terminal block 11 is assembled to the case 100 by passing the bolt 104 through the bolt insertion hole 27 of the flange portion 25 of the housing 13 and screwing it into the screw hole 103 formed in the case 100.

ハウジング１３は、表裏に貫通する複数の端子挿通孔３０を有しており、この端子挿通孔３０に、導電部材１０が挿着される。
ハウジング１３は、組付部２３側に、平面視矩形状の凹部からなるナット収容凹部３１を有している。このナット収容凹部３１は、側方側が開放されている。ナット収容凹部３１には、その側方から、ネジ孔３２ａを有する平面視矩形状のナット３２が収容されている。また、このナット収容凹部３１の底部３１ａには、座ぐり孔３３が形成されている。これらのナット収容凹部３１の間には、隔壁３４が形成されており、この隔壁３４によって隣接するナット収容凹部３１同士の間が区画されている。 The housing 13 has a plurality of terminal insertion holes 30 penetrating the front and back, and the conductive member 10 is inserted into the terminal insertion holes 30.
The housing 13 has a nut accommodating recess 31 formed of a rectangular recess in a plan view on the side of the assembly portion 23. The side of the nut accommodating recess 31 is open. From the side thereof, the nut accommodating recess 31 accommodates a nut 32 having a rectangular shape in a plan view and having a screw hole 32a. Further, a counterbore hole 33 is formed in the bottom portion 31a of the nut accommodating recess 31. A partition wall 34 is formed between these nut accommodating recesses 31, and the partition walls 34 partition between adjacent nut accommodating recesses 31.

ハウジング１３の端子挿通孔３０の上部には、シール嵌合穴部３５が形成されている。また、ハウジング１３は、各シール嵌合穴部３５が開口するシール保持凹部３６を有し、さらに、このシール保持凹部３６の上方に、嵌合凹部３７を有している。このシール保持凹部３６及び嵌合凹部３７は、ハウジング１３の幅方向に沿って形成されている。ハウジング１３には、その上方側から、シール保持凹部３６にシール部材４１が嵌め込まれ、さらに、嵌合凹部３７にホルダ１９が嵌め込まれる。 A seal fitting hole 35 is formed in the upper part of the terminal insertion hole 30 of the housing 13. Further, the housing 13 has a seal holding recess 36 through which each seal fitting hole 35 opens, and further has a fitting recess 37 above the seal holding recess 36. The seal holding recess 36 and the fitting recess 37 are formed along the width direction of the housing 13. The seal member 41 is fitted into the seal holding recess 36 from above the housing 13, and the holder 19 is further fitted into the fitting recess 37.

シール部材４１は、例えば、ゴム等の柔軟性を有する樹脂材料から成形されたものであり、複数のシール孔４２を有している。また、シール部材４１には、シール保持凹部３６への嵌め込み方向へ突出する複数のシール部４３が形成されており、これらのシール部４３に各シール孔４２が形成されている。このシール部材４１は、ハウジング１３のシール保持凹部３６に嵌め込まれることにより、各シール部４３がシール嵌合穴部３５に嵌め込まれる。これにより、各シール部４３の外周リップがシール嵌合穴部３５の内周面に密着して液密にシールする。また、シール部材４１には、シール孔４２の上部に、係合凹部４５が形成されている。 The seal member 41 is molded from a flexible resin material such as rubber, and has a plurality of seal holes 42. Further, the seal member 41 is formed with a plurality of seal portions 43 protruding in the fitting direction into the seal holding recess 36, and each seal hole 42 is formed in these seal portions 43. By fitting the seal member 41 into the seal holding recess 36 of the housing 13, each seal portion 43 is fitted into the seal fitting hole portion 35. As a result, the outer peripheral lip of each seal portion 43 comes into close contact with the inner peripheral surface of the seal fitting hole portion 35 and seals liquid-tightly. Further, in the seal member 41, an engagement recess 45 is formed in the upper part of the seal hole 42.

ホルダ１９は、円筒状に形成された複数の端子保持部２８を有しており、これらの端子保持部２８には、端子挿通孔２９が形成されている。ホルダ１９には、各端子保持部２８の下方位置に、下方へ突出する複数のシール保持凸部２６が形成されている。このホルダ１９は、ハウジング１３の上部に組付けられることにより、シール保持凸部２６がシール部材４１の係合凹部４５に嵌合される。これにより、シール部材４１は、ハウジング１３に組付けられるホルダ１９によってハウジング１３に押圧されて保持される。また、この状態で、ホルダ１９の端子挿通孔２９が、ハウジング１３の端子挿通孔３０及びシール部材４１のシール孔４２と連通される。このホルダ１９の端子挿通孔２９の内周面には、軸方向に沿う回り止め凹部２９ａが形成されている。棒状の導電部材１０は、ハウジング１３における互いに連通された端子挿通孔３０、シール孔４２及び端子挿通孔２９に通されて保持される。 The holder 19 has a plurality of terminal holding portions 28 formed in a cylindrical shape, and terminal insertion holes 29 are formed in these terminal holding portions 28. The holder 19 is formed with a plurality of seal holding convex portions 26 projecting downward at positions below each terminal holding portion 28. By assembling the holder 19 to the upper part of the housing 13, the seal holding protrusion 26 is fitted into the engagement recess 45 of the seal member 41. As a result, the seal member 41 is pressed and held by the holder 19 assembled to the housing 13. Further, in this state, the terminal insertion hole 29 of the holder 19 communicates with the terminal insertion hole 30 of the housing 13 and the seal hole 42 of the seal member 41. A detent recess 29a along the axial direction is formed on the inner peripheral surface of the terminal insertion hole 29 of the holder 19. The rod-shaped conductive member 10 is passed through and held through the terminal insertion hole 30, the seal hole 42, and the terminal insertion hole 29 that communicate with each other in the housing 13.

図６は、図３におけるＣ－Ｃ断面図である。
図６に示すように、端子台１１は、ホルダ１９に組み込まれた電流センサ８０を備えている。電流センサ８０は、磁気コア８１と、ホール素子８２とから構成されている。 FIG. 6 is a cross-sectional view taken along the line CC in FIG.
As shown in FIG. 6, the terminal block 11 includes a current sensor 80 incorporated in the holder 19. The current sensor 80 includes a magnetic core 81 and a Hall element 82.

磁気コア８１は、フェライト等の磁性材料で成形されたもので、コア部８３と、シールド部８４とを有している。コア部８３は、周方向の一部にギャップ８５を有する断面視略円形状に形成されており、端子保持部２８の周囲を囲うように、端子保持部２８に挿着されている。シールド部８４は、断面視略Ｕ字状に形成されており、このシールド部８４の内側にコア部８３が配置されている。 The magnetic core 81 is formed of a magnetic material such as ferrite, and has a core portion 83 and a shield portion 84. The core portion 83 is formed in a substantially circular shape in a cross-sectional view having a gap 85 in a part in the circumferential direction, and is inserted into the terminal holding portion 28 so as to surround the periphery of the terminal holding portion 28. The shield portion 84 is formed in a substantially U-shape in cross-sectional view, and the core portion 83 is arranged inside the shield portion 84.

ホール素子８２は、磁気コア８１のコア部８３に形成されたギャップ８５に配置されている。このホール素子８２は、ギャップ８５の磁束密度に応じたホール電圧の信号を出力する。それぞれのホール素子８２は、ホルダ１９に組付けられる回路基板８６に実装されており、回路基板８６の導体パターン（図示略）に電気的に接続されている。回路基板８６には、ホール素子８２からの検出信号を外部に出力するための検出線８７が接続されている。検出線８７には、その端部に、外部機器等に接続するためのコネクタ８８が接続されている。
なお、電流センサ８０及び回路基板８６が組付けられたホルダ１９は、内部に充填される樹脂によってモールドされる。 The Hall element 82 is arranged in the gap 85 formed in the core portion 83 of the magnetic core 81. The Hall element 82 outputs a Hall voltage signal corresponding to the magnetic flux density of the gap 85. Each Hall element 82 is mounted on a circuit board 86 assembled to the holder 19, and is electrically connected to a conductor pattern (not shown) of the circuit board 86. A detection line 87 for outputting a detection signal from the Hall element 82 to the outside is connected to the circuit board 86. A connector 88 for connecting to an external device or the like is connected to the end of the detection line 87.
The holder 19 to which the current sensor 80 and the circuit board 86 are assembled is molded by the resin filled inside.

図７は、端子台１１に組付けられる導電部材１０を説明する図であって、（ａ）及び（ｂ）はそれぞれ斜め上方及び斜め下方から視た分解斜視図である。図８は、端子台１１に組付けられる導電部材１０を説明する図であって、（ａ）は連結前における軸方向に沿う縦断面図、（ｂ）は連結状態における軸方向に沿う縦断面図及び一部拡大図である。 7A and 7B are views for explaining the conductive member 10 assembled to the terminal block 11, and FIGS. 7A and 7B are exploded perspective views viewed from diagonally above and diagonally below, respectively. 8A and 8B are views for explaining the conductive member 10 assembled to the terminal block 11, where FIG. 8A is a vertical cross-sectional view along the axial direction before connection, and FIG. 8B is a vertical cross-sectional view along the axial direction in the connected state. It is a figure and a partially enlarged view.

図７の（ａ）及び（ｂ）に示すように、導電部材１０は、例えば、銅、銅合金等の導電性金属材料から形成されたもので、棒状に形成されている。この導電部材１０は、第１導電部材５０と、第２導電部材６０とを有している。第１導電部材５０及び第２導電部材６０は、それぞれ丸棒状に形成されており、連結機構７０によって互いに着脱自在に連結されている。導電部材１０は、両端部に、電気接続部となる第１締結部５１及び第２締結部６１を有している。第１締結部５１は第１導電部材５０の一端に設けられ、第２締結部６１は第２導電部材６０の一端に設けられている。第１締結部５１は、孔部５２を有する平板状に形成されており、第１導電部材５０における軸心に対してオフセットされた位置に形成されている。同様に、第２締結部６１は、孔部６２を有する平板状に形成されており、第２導電部材６０における軸心に対してオフセットされた位置に形成されている。また、第１導電部材５０には、その外周に、軸方向に沿う回り止め突起（回り止め機構）５３が形成されている。なお、第１導電部材５０及び第２導電部材６０の断面形状は、円形に限らず楕円形や多角形であってもよい。 As shown in FIGS. 7A and 7B, the conductive member 10 is formed of a conductive metal material such as copper or a copper alloy, and is formed in a rod shape. The conductive member 10 has a first conductive member 50 and a second conductive member 60. The first conductive member 50 and the second conductive member 60 are each formed in the shape of a round bar, and are detachably connected to each other by a connecting mechanism 70. The conductive member 10 has a first fastening portion 51 and a second fastening portion 61 which are electrical connection portions at both ends. The first fastening portion 51 is provided at one end of the first conductive member 50, and the second fastening portion 61 is provided at one end of the second conductive member 60. The first fastening portion 51 is formed in a flat plate shape having a hole portion 52, and is formed at a position offset with respect to the axis of the first conductive member 50. Similarly, the second fastening portion 61 is formed in a flat plate shape having a hole portion 62, and is formed at a position offset with respect to the axis of the second conductive member 60. Further, the first conductive member 50 is formed with a detent projection (detent mechanism) 53 along the axial direction on the outer periphery thereof. The cross-sectional shape of the first conductive member 50 and the second conductive member 60 is not limited to a circle, but may be an ellipse or a polygon.

図８の（ａ）及び（ｂ）に示すように、連結機構７０は、第１導電部材５０の他端に形成された連結ピン部５５と、第２導電部材６０の他端に形成された連結孔部６５と、コンタクトばね７１とから構成されている。連結ピン部５５には、その根元部分に、係合溝部５６が形成されている。また、連結孔部６５には、その開口縁部近傍に、保持溝部６６が形成されている。コンタクトばね７１は、リング状に形成された導電性を有するコイルばねからなるものであり、連結孔部６５の保持溝部６６に装着されて保持されている。第１導電部材５０と第２導電部材６０とは、保持溝部６６にコンタクトばね７１が保持された連結孔部６５に連結ピン部５５を挿し込むことにより連結され、互いに電気的に接続される。このようにして第１導電部材５０と第２導電部材６０とが連結されると、図８の（ｂ）に示すように、コンタクトばね７１が保持溝部６６と係合溝部５６とによって区画形成されたリング状の空間内に圧縮されて収容された状態となる。そして、コンタクトばね７１は、保持溝部６６の内面と係合溝部５６の内面とに押し付けられて弾性接触される。これにより、第１導電部材５０と第２導電部材６０とは、コンタクトばね７１を介して良好に導通される。 As shown in FIGS. 8A and 8B, the connecting mechanism 70 is formed at the connecting pin portion 55 formed at the other end of the first conductive member 50 and at the other end of the second conductive member 60. It is composed of a connecting hole portion 65 and a contact spring 71. The connecting pin portion 55 is formed with an engaging groove portion 56 at the root portion thereof. Further, in the connecting hole portion 65, a holding groove portion 66 is formed in the vicinity of the opening edge portion thereof. The contact spring 71 is made of a coil spring having conductivity formed in a ring shape, and is mounted and held in the holding groove portion 66 of the connecting hole portion 65. The first conductive member 50 and the second conductive member 60 are connected by inserting the connecting pin portion 55 into the connecting hole portion 65 in which the contact spring 71 is held in the holding groove portion 66, and are electrically connected to each other. When the first conductive member 50 and the second conductive member 60 are connected in this way, the contact spring 71 is partitioned by the holding groove portion 66 and the engaging groove portion 56, as shown in FIG. 8B. It is compressed and housed in a ring-shaped space. Then, the contact spring 71 is pressed against the inner surface of the holding groove portion 66 and the inner surface of the engaging groove portion 56 to be elastically contacted. As a result, the first conductive member 50 and the second conductive member 60 are satisfactorily conducted via the contact spring 71.

導電部材１０をハウジング１３に装着して端子台１１を構成する場合、まず、図５に示すように、互いに連通された端子挿通孔３０、シール孔４２及び端子挿通孔２９へ、下方側から第２導電部材６０の他端側を挿し込む。 When the conductive member 10 is attached to the housing 13 to form the terminal block 11, first, as shown in FIG. 5, the terminal insertion hole 30, the seal hole 42, and the terminal insertion hole 29, which are communicated with each other, are first connected from the lower side. 2 Insert the other end side of the conductive member 60.

図９は、導電部材１０の組付け方を説明する端子台１１の要部の拡大斜視図である。
次に、図４及び図９に示すように、第１導電部材５０の他端が、互いに連通された端子挿通孔３０、シール孔４２及び端子挿通孔２９へ、ホルダ１９の端子挿通孔２９側から挿し込まれる。そして、この第１導電部材５０の連結ピン部５５が第２導電部材６０の連結孔部６５に挿し込まれ、第１導電部材５０と第２導電部材６０とが互いに連結される。このようにすると、電気接続部である第１締結部５１及び第２締結部６１がハウジング１３の外部にそれぞれ突出するように導電部材１０が挿着された端子台１１が得られる（図１参照）。 FIG. 9 is an enlarged perspective view of a main part of the terminal block 11 for explaining how to assemble the conductive member 10.
Next, as shown in FIGS. 4 and 9, the other ends of the first conductive member 50 communicate with each other to the terminal insertion hole 30, the seal hole 42, and the terminal insertion hole 29, and the terminal insertion hole 29 side of the holder 19. It is inserted from. Then, the connecting pin portion 55 of the first conductive member 50 is inserted into the connecting hole portion 65 of the second conductive member 60, and the first conductive member 50 and the second conductive member 60 are connected to each other. By doing so, a terminal block 11 in which the conductive member 10 is inserted so that the first fastening portion 51 and the second fastening portion 61, which are electrical connection portions, project to the outside of the housing 13 can be obtained (see FIG. 1). ).

このとき、第１導電部材５０の回り止め突起５３の位置が、ホルダ１９の端子挿通孔２９に形成された回り止め凹部（回り止め機構）２９ａに合わされ、回り止め突起５３が回り止め凹部２９ａに挿し込まれる。これにより、第１導電部材５０は、ハウジング１３に組付けられたホルダ１９に対して回り止めされる。 At this time, the position of the detent protrusion 53 of the first conductive member 50 is aligned with the detent recess (detent mechanism) 29a formed in the terminal insertion hole 29 of the holder 19, and the detent protrusion 53 is aligned with the detent recess 29a. It is inserted. As a result, the first conductive member 50 is prevented from rotating with respect to the holder 19 assembled to the housing 13.

ハウジング１３に挿着した導電部材１０は、第２導電部材６０の外周面にシール部材４１のシール孔４２の内周リップが密着して液密にシールされる。また、導電部材１０は、その第２導電部材６０の第２電気締結部６１がナット収容凹部３１に収容されたナット３２に対向する位置に配置される。これにより、第２締結部６１は、その孔部６２がナット３２のネジ孔３２ａに連通される。 The conductive member 10 inserted into the housing 13 is hermetically sealed with the inner peripheral lip of the seal hole 42 of the seal member 41 in close contact with the outer peripheral surface of the second conductive member 60. Further, the conductive member 10 is arranged at a position where the second electric fastening portion 61 of the second conductive member 60 faces the nut 32 accommodated in the nut accommodating recess 31. As a result, the hole 62 of the second fastening portion 61 communicates with the screw hole 32a of the nut 32.

導電部材１０の第２締結部６１には、端子台１１が取り付けられる機器側の配線材１に設けられた端子金具２が接続される。この端子金具２を第２締結部６１に接続させるには、端子金具２に形成された孔部３にボルト４を挿通させ、このボルト４を第２締結部６１の孔部６２へ通し、ナット収容凹部３１に収容されたナット３２のネジ孔３２ａにねじ込む。これにより、端子金具２がボルト４とナット３２とで導電部材１０を構成する第２導電部材６０の第２締結部６１に締結されて電気的に接続される。 The terminal fitting 2 provided on the wiring material 1 on the device side to which the terminal block 11 is attached is connected to the second fastening portion 61 of the conductive member 10. In order to connect the terminal fitting 2 to the second fastening portion 61, a bolt 4 is inserted through the hole 3 formed in the terminal fitting 2, the bolt 4 is passed through the hole 62 of the second fastening portion 61, and a nut is used. It is screwed into the screw hole 32a of the nut 32 accommodated in the accommodating recess 31. As a result, the terminal fitting 2 is fastened to the second fastening portion 61 of the second conductive member 60 constituting the conductive member 10 with the bolt 4 and the nut 32, and is electrically connected.

また、導電部材１０の第１締結部５１には、接続相手の機器側の配線材であるバスバー５が接続される（図１参照）。このバスバー５は、導電性金属材料から形成された板材であり、先端部分に孔部（図示略）を有している。バスバー５を第１締結部５１に接続させるには、第１締結部５１の孔部５２に通したボルト７をバスバー５に形成された孔部に挿通させてナット８にねじ込む。これにより、バスバー５がボルト７とナット８とで第１締結部５１に締結されて電気的に接続される。 Further, a bus bar 5, which is a wiring material on the device side of the connection partner, is connected to the first fastening portion 51 of the conductive member 10 (see FIG. 1). The bus bar 5 is a plate material formed of a conductive metal material, and has a hole portion (not shown) at the tip portion thereof. In order to connect the bus bar 5 to the first fastening portion 51, the bolt 7 passed through the hole portion 52 of the first fastening portion 51 is inserted into the hole portion formed in the bus bar 5 and screwed into the nut 8. As a result, the bus bar 5 is fastened to the first fastening portion 51 with the bolt 7 and the nut 8 and electrically connected.

ここで、参考例に係る端子台１１１について説明する。なお、参考例に係る端子台１１１は、本実施形態に係る端子台１１と同一構成部分は同一符号を付して説明を省略する。
図１０は、参考例に係る端子台１１１の斜視図である。図１１は、参考例に係る端子台１１１の縦断面図である。 Here, the terminal block 111 according to the reference example will be described. In the terminal block 111 according to the reference example, the same components as the terminal block 11 according to the present embodiment are designated by the same reference numerals, and the description thereof will be omitted.
FIG. 10 is a perspective view of the terminal block 111 according to the reference example. FIG. 11 is a vertical sectional view of the terminal block 111 according to the reference example.

図１０及び図１１に示すように、参考例に係る端子台１１１は、平板状のバスバーからなる導電部材１１０を備えている。この導電部材１１０は、一端側が孔部１１３を有する第１締結部１１２とされ、他端側が孔部１１５を有する第２締結部１１４とされている。また、端子台１１１は、ハウジング１３Ａに装着されるホルダ１９Ａに、断面長方形状の角筒状の端子挿通部２８Ａを有している。この端子台１１１では、電流センサ８０Ａは、端子挿通部２８Ａを囲う平面視略矩形状の磁気コア８１Ａを備えており、端子挿通部２８Ａに挿通された導電部材１１０が磁気コア８１Ａの内側に配置されている。 As shown in FIGS. 10 and 11, the terminal block 111 according to the reference example includes a conductive member 110 made of a flat plate-shaped bus bar. The conductive member 110 has a first fastening portion 112 having a hole 113 on one end side and a second fastening portion 114 having a hole 115 on the other end side. Further, the terminal block 111 has a terminal insertion portion 28A having a rectangular cylindrical cross section in the holder 19A mounted on the housing 13A. In the terminal block 111, the current sensor 80A includes a magnetic core 81A having a substantially rectangular shape in a plan view surrounding the terminal insertion portion 28A, and the conductive member 110 inserted through the terminal insertion portion 28A is arranged inside the magnetic core 81A. Has been done.

次に、本実施形態に係る端子台１１の導電部材１０の配列ピッチと、参考例に係る端子台１１１の導電部材１１０の配列ピッチとについて説明する。
図１２は、導電部材１０，１１０の配列のピッチを説明する図であって、（ａ）は本実施形態に係る端子台１１における水平方向に沿う一部の断面図、（ｂ）は参考例に係る端子台１１１における水平方向に沿う一部の断面図である。 Next, the arrangement pitch of the conductive members 10 of the terminal block 11 according to the present embodiment and the arrangement pitch of the conductive members 110 of the terminal block 111 according to the reference example will be described.
12A and 12B are views for explaining the pitch of the arrangement of the conductive members 10 and 110, FIG. 12A is a cross-sectional view of a part of the terminal block 11 according to the present embodiment along the horizontal direction, and FIG. 12B is a reference example. It is a partial cross-sectional view along the horizontal direction in the terminal block 111 which concerns on.

図１２の（ａ）に示すように、本実施形態に係る端子台１１では、導電部材１０が丸棒状であるので、電流センサ８０の磁気コア８１の配列方向の幅寸法ＷＡを抑えて磁気コア８１間のクリアランスＣＡを小さくすることができる。ここで、導電部材１０の第１締結部５１及び第２締結部６１は、締結に必要な幅寸法を要し、また、隣接する導電部材１０の第１締結部５１同士及び第２締結部６１同士の間に隙間を確保する必要がある。このため、磁気コア８１間には、ある程度の大きさのクリアランスＣＡを確保する必要がある。本実施形態に係る端子台１１では、電流センサ８０の磁気コア８１の配列方向の幅寸法ＷＡを抑えることができるので、導電部材１０同士のピッチＰＡを小さくして小型化を図ることができる。 As shown in FIG. 12A, in the terminal block 11 according to the present embodiment, since the conductive member 10 has a round bar shape, the width dimension WA in the arrangement direction of the magnetic core 81 of the current sensor 80 is suppressed and the magnetic core is suppressed. The clearance CA between 81 can be reduced. Here, the first fastening portion 51 and the second fastening portion 61 of the conductive member 10 require a width dimension necessary for fastening, and the first fastening portions 51 of the adjacent conductive members 10 and the second fastening portion 61 are connected to each other. It is necessary to secure a gap between them. Therefore, it is necessary to secure a clearance CA of a certain size between the magnetic cores 81. In the terminal block 11 according to the present embodiment, the width dimension WA in the arrangement direction of the magnetic core 81 of the current sensor 80 can be suppressed, so that the pitch PA between the conductive members 10 can be reduced to reduce the size.

これに対して、図１２の（ｂ）に示すように、参考例に係る端子台１１１では、導電部材１１０は、長手方向にわたって両端の第１締結部１１２及び第２締結部１１４の幅寸法と同一幅寸法を有する。このため、電流センサ８０Ａを構成する磁気コア８１Ａの幅寸法ＷＢも大きくなる。したがって、隣接する磁気コア８１Ａ同士の間のクリアランスＣＢを極力小さくしたとしても、導電部材１１０同士のピッチＰＢが大きくなり、端子台１１１が大型化してしまう。 On the other hand, as shown in FIG. 12B, in the terminal block 111 according to the reference example, the conductive member 110 has the width dimension of the first fastening portion 112 and the second fastening portion 114 at both ends in the longitudinal direction. Has the same width dimension. Therefore, the width dimension WB of the magnetic core 81A constituting the current sensor 80A also becomes large. Therefore, even if the clearance CB between the adjacent magnetic cores 81A is made as small as possible, the pitch PB between the conductive members 110 becomes large, and the terminal block 111 becomes large.

以上、説明したように、本実施形態に係る端子台１１によれば、丸棒状の第１導電部材５０の他端と丸棒状の第２導電部材６０の他端とが連結機構７０で連結された導電部材１０をハウジング１３の端子挿通孔３０及びホルダ１９の端子挿通孔２９に挿着している。したがって、平板状で幅広のバスバーを導電部材１１０として用いる参考例に係る端子台１１１と比べ、導電部材１０の挿着箇所のスペースを小さくすることができ、端子台１１を容易に小型化することができる。 As described above, according to the terminal block 11 according to the present embodiment, the other end of the round bar-shaped first conductive member 50 and the other end of the round bar-shaped second conductive member 60 are connected by the connecting mechanism 70. The conductive member 10 is inserted into the terminal insertion hole 30 of the housing 13 and the terminal insertion hole 29 of the holder 19. Therefore, as compared with the terminal block 111 according to the reference example in which the flat plate-shaped and wide bus bar is used as the conductive member 110, the space for the insertion point of the conductive member 10 can be reduced, and the terminal block 11 can be easily miniaturized. Can be done.

また、本実施形態に係る端子台１１によれば、連結機構７０のコンタクトばね７１によって第１導電部材５０の他端と第２導電部材６０の他端との連結箇所における接点の電気抵抗を抑えることができる。即ち、第１導電部材５０と第２導電部材６０とが良好に導通された導電部材１０を備える端子台１１とすることができる。 Further, according to the terminal block 11 according to the present embodiment, the contact spring 71 of the connecting mechanism 70 suppresses the electrical resistance of the contact point at the connecting portion between the other end of the first conductive member 50 and the other end of the second conductive member 60. be able to. That is, the terminal block 11 can be provided with the conductive member 10 in which the first conductive member 50 and the second conductive member 60 are satisfactorily conducted.

また、本実施形態に係る端子台１１によれば、回り止め凹部２９ａと回り止め突起５３とが凹凸嵌合する回り止め機構によって、導電部材１０の第１導電部材５０がハウジング１３に組付けられたホルダ１９を介してハウジング１３に対して回り止めされる。そこで、本実施形態に係る端子台１１では、第１導電部材５０への配線作業を容易に行うことができる。 Further, according to the terminal block 11 according to the present embodiment, the first conductive member 50 of the conductive member 10 is assembled to the housing 13 by the detent mechanism in which the detent recess 29a and the detent projection 53 are unevenly fitted. It is prevented from rotating with respect to the housing 13 via the holder 19. Therefore, in the terminal block 11 according to the present embodiment, the wiring work to the first conductive member 50 can be easily performed.

更に、本実施形態に係る端子台１１によれば、第１導電部材５０の外周側に配置された磁気コア８１によって、導電部材１０に流れる電流を検出することができる。また、ハウジング１３における導電部材１０の挿着箇所のスペースを小さくすることができるので、磁気コア８１を設けて電流の検出を可能としつつ小型化を図ることができる。 Further, according to the terminal block 11 according to the present embodiment, the current flowing through the conductive member 10 can be detected by the magnetic core 81 arranged on the outer peripheral side of the first conductive member 50. Further, since the space for the insertion portion of the conductive member 10 in the housing 13 can be reduced, the magnetic core 81 can be provided to enable the detection of the current and to reduce the size.

したがって、複数本の導電部材１０がハウジング１３に並列に配設された端子台１１では、ハウジング１３における導電部材１０の挿着箇所のスペースを小さくすることができる。そこで、本実施形態に係る端子台１１では、ハウジング１３に導電部材１０を並列に配設しても配列方向の寸法を抑えて小型化を図ることができる。 Therefore, in the terminal block 11 in which a plurality of conductive members 10 are arranged in parallel with the housing 13, the space at the insertion point of the conductive member 10 in the housing 13 can be reduced. Therefore, in the terminal block 11 according to the present embodiment, even if the conductive members 10 are arranged in parallel on the housing 13, the dimensions in the arrangement direction can be suppressed and the size can be reduced.

なお、棒状の導電部材１０の断面形状は円形に限らず楕円形や多角形であってもよい。導電部材１０の断面形状を楕円形や多角形にし、楕円形や多角形の断面形状を有する端子挿通孔２９へ挿着すれば、回り止め効果を得ることができる。 The cross-sectional shape of the rod-shaped conductive member 10 is not limited to a circle, but may be an ellipse or a polygon. If the cross-sectional shape of the conductive member 10 is made elliptical or polygonal and is inserted into the terminal insertion hole 29 having the elliptical or polygonal cross-sectional shape, the detent effect can be obtained.

尚、本発明は、上述した実施形態に限定されるものではなく、適宜、変形、改良、等が可能である。その他、上述した実施形態における各構成要素の材質、形状、寸法、数、配置箇所、等は本発明を達成できるものであれば任意であり、限定されない。 The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, dimensions, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

ここで、上述した本発明に係る端子台の実施形態の特徴をそれぞれ以下［１］～［５］に簡潔に纏めて列記する。
［１］ 被取付部（ケース１００）に取り付けられるハウジング（１３）と、
前記ハウジング（１３）の端子挿通孔（３０）に挿着されて、両端部に第１締結部（５１）及び第２締結部（６１）を有する導電部材（１０）と、を備え、
前記導電部材（１０）は、一端に前記第１締結部（５１）が形成された棒状の第１導電部材（５０）と、一端に前記第２締結部（６１）が形成された棒状の第２導電部材（６０）とを有し、
前記第１導電部材（５０）の他端と前記第２導電部材（６０）の他端とが、連結機構（７０）で着脱自在に連結されている、ことを特徴とする端子台（１１）。
［２］ 前記連結機構（７０）は、接点の電気抵抗を抑えるためのコンタクトばね（７１）を有する、ことを特徴とする上記［１］に記載の端子台（１１）。
［３］ 前記第１導電部材（５０）の外周面には、前記ハウジング（１３）に対して回り止めされる回り止め機構（回り止め突起５３及び回り止め凹部２９ａ）が設けられる、ことを特徴とする上記［１］または［２］に記載の端子台（１１）。
［４］ 前記第１導電部材（５０）の外周側には、磁気コア（８１）が配置される、ことを特徴とする上記［１］～［３］の何れか一つに記載の端子台（１１）。
［５］ 複数本の前記導電部材（１０）が、前記ハウジング（１３）に並列に配設される、ことを特徴とする上記［１］～［４］の何れか一つに記載の端子台（１１）。 Here, the features of the above-described terminal block embodiments according to the present invention are briefly summarized and listed below in [1] to [5], respectively.
[1] A housing (13) attached to the attached portion (case 100) and
A conductive member (10) that is inserted into the terminal insertion hole (30) of the housing (13) and has a first fastening portion (51) and a second fastening portion (61) at both ends thereof is provided.
The conductive member (10) has a rod-shaped first conductive member (50) having the first fastening portion (51) formed at one end and a rod-shaped first conductive member (61) having the second fastening portion (61) formed at one end. It has 2 conductive members (60) and
The terminal block (11) is characterized in that the other end of the first conductive member (50) and the other end of the second conductive member (60) are detachably connected by a connecting mechanism (70). ..
[2] The terminal block (11) according to the above [1], wherein the connecting mechanism (70) has a contact spring (71) for suppressing the electrical resistance of the contact.
[3] The outer peripheral surface of the first conductive member (50) is provided with a detent mechanism (detent projection 53 and detent recess 29a) that is detented to the housing (13). The terminal block (11) according to the above [1] or [2].
[4] The terminal block according to any one of the above [1] to [3], wherein the magnetic core (81) is arranged on the outer peripheral side of the first conductive member (50). (11).
[5] The terminal block according to any one of the above [1] to [4], wherein a plurality of the conductive members (10) are arranged in parallel with the housing (13). (11).

１０…導電部材
１１…端子台
１３…ハウジング
２９ａ…回り止め凹部（回り止め機構）
３０…端子挿通孔
５０…第１導電部材
５１…第１締結部
５３…回り止め突起（回り止め機構）
６０…第２導電部材
６１…第２締結部
７０…連結機構
７１…コンタクトばね
８１…磁気コア
１００…ケース（被取付部） 10 ... Conductive member 11 ... Terminal block 13 ... Housing 29a ... Anti-rotation recess (anti-rotation mechanism)
30 ... Terminal insertion hole 50 ... First conductive member 51 ... First fastening portion 53 ... Anti-rotation protrusion (anti-rotation mechanism)
60 ... Second conductive member 61 ... Second fastening portion 70 ... Connecting mechanism 71 ... Contact spring 81 ... Magnetic core 100 ... Case (attached portion)

Claims (5)

被取付部に取り付けられるハウジングと、
前記ハウジングの端子挿通孔に挿着されて、両端部に第１締結部及び第２締結部を有する導電部材と、を備え、
前記導電部材は、一端に前記第１締結部が形成された棒状の第１導電部材と、一端に前記第２締結部が形成された棒状の第２導電部材とを有し、
前記第１導電部材の他端と前記第２導電部材の他端とが、連結機構で着脱自在に連結されている、ことを特徴とする端子台。 The housing that can be attached to the attached part and
A conductive member that is inserted into the terminal insertion hole of the housing and has a first fastening portion and a second fastening portion at both ends thereof is provided.
The conductive member has a rod-shaped first conductive member having the first fastening portion formed on one end thereof, and a rod-shaped second conductive member having the second fastening portion formed on one end thereof.
A terminal block characterized in that the other end of the first conductive member and the other end of the second conductive member are detachably connected by a connecting mechanism. 前記連結機構は、接点の電気抵抗を抑えるためのコンタクトばねを有する、ことを特徴とする請求項１に記載の端子台。 The terminal block according to claim 1, wherein the connecting mechanism has a contact spring for suppressing the electrical resistance of the contact. 前記第１導電部材の外周面には、前記ハウジングに対して回り止めされる回り止め機構が設けられる、ことを特徴とする請求項１または請求項２に記載の端子台。 The terminal block according to claim 1 or 2, wherein a detent mechanism for detenting the housing is provided on the outer peripheral surface of the first conductive member. 前記第１導電部材の外周側には、磁気コアが配置される、ことを特徴とする請求項１～３の何れか一項に記載の端子台。 The terminal block according to any one of claims 1 to 3, wherein a magnetic core is arranged on the outer peripheral side of the first conductive member. 複数本の前記導電部材が、前記ハウジングに並列に配設される、ことを特徴とする請求項１～４の何れか一項に記載の端子台。 The terminal block according to any one of claims 1 to 4, wherein a plurality of the conductive members are arranged in parallel with the housing.
JP2020175356A 2020-10-19 2020-10-19 Terminal block Pending JP2022066811A (en)

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