JP7257923B2 - Columnar conductor and conductor structure - Google Patents

Columnar conductor and conductor structure Download PDF

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JP7257923B2
JP7257923B2 JP2019163867A JP2019163867A JP7257923B2 JP 7257923 B2 JP7257923 B2 JP 7257923B2 JP 2019163867 A JP2019163867 A JP 2019163867A JP 2019163867 A JP2019163867 A JP 2019163867A JP 7257923 B2 JP7257923 B2 JP 7257923B2
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修平 小嶋
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Toshiba Mitsubishi Electric Industrial Systems Corp
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Description

本発明の実施形態は、柱状導体及び導体構造に関する。 Embodiments of the present invention relate to columnar conductors and conductor structures.

高電圧・大電流を扱う電力変換装置では、ブスバーあるいはバスバーなどと呼ばれる板状の導体(以下、板状導体と称す)を用いた導体構造が、配線に用いられている。こうした導体構造において、板状導体と接続対象との間に柱状の導体(以下、柱状導体と称す)を設け、柱状導体を介して板状導体と接続対象とを電気的に接続することが行われている。 2. Description of the Related Art In a power converter that handles high voltage and large current, a conductor structure using a plate-shaped conductor called a busbar or busbar (hereinafter referred to as a plate-shaped conductor) is used for wiring. In such a conductor structure, a columnar conductor (hereinafter referred to as a columnar conductor) is provided between the plate-shaped conductor and the connection target, and the plate-shaped conductor and the connection target are electrically connected via the columnar conductor. It is

例えば、板状導体と接続対象との間に、他の板状導体や絶縁シートなどを設ける場合がある。柱状導体は、他の板状導体や絶縁シートなどの厚さに対応した長さに設定される。これにより、板状導体と接続対象との間に、他の板状導体や絶縁シートなどが設けられる場合にも、柱状導体を介して板状導体と接続対象とを電気的に接続することができる。 For example, another plate-like conductor or an insulating sheet may be provided between the plate-like conductor and the object to be connected. The columnar conductor is set to have a length corresponding to the thickness of other plate-shaped conductors, insulating sheets, and the like. As a result, even when another plate-shaped conductor, an insulating sheet, or the like is provided between the plate-shaped conductor and the connection target, the plate-shaped conductor and the connection target can be electrically connected via the columnar conductor. can.

柱状導体は、ボルトを挿通するための貫通孔を有し、板状導体と接続対象との間に挟まれた状態で、板状導体とともに接続対象にボルト締めされる。これにより、柱状導体が、板状導体と接続対象との間に保持されるとともに、板状導体と接続対象とが、柱状導体を介して電気的に接続される。 The columnar conductor has a through hole for inserting a bolt, and is bolted to the connection object together with the plate-like conductor while being sandwiched between the plate-like conductor and the connection object. As a result, the columnar conductor is held between the plate-shaped conductor and the connection target, and the plate-shaped conductor and the connection target are electrically connected via the columnar conductor.

柱状導体を板状導体と接続対象との間に挟むだけの構成では、ボルト締めの際に、柱状導体が落下するなど、柱状導体が適切な位置からずれてしまう可能性がある。そこで、柱状導体を板状導体にロウ付け(溶接)することなどにより、柱状導体を板状導体と一体的に設けることも提案されている。これにより、柱状導体の位置ずれを抑制し、柱状導体及び板状導体の取付作業性を向上させることができる。 In a structure in which the columnar conductor is simply sandwiched between the plate-shaped conductor and the connection target, there is a possibility that the columnar conductor will be displaced from an appropriate position, for example, the columnar conductor will drop when the bolt is tightened. Therefore, it has been proposed to integrally provide the columnar conductor with the plate-like conductor by brazing (welding) the columnar conductor to the plate-like conductor. As a result, it is possible to suppress the displacement of the columnar conductors and improve workability of attaching the columnar conductors and the plate-shaped conductors.

しかしながら、経験や時間が必要なロウ付けを行うと、柱状導体及び導体構造の製造コストの増加などを招いてしまうことが懸念される。このため、柱状導体及びこれを用いた導体構造においては、簡単な構成で高い取付作業性を得られるようにすることが望まれる。 However, there is a concern that brazing, which requires experience and time, will increase the manufacturing cost of the columnar conductor and the conductor structure. Therefore, in the columnar conductor and the conductor structure using the same, it is desired to obtain high installation workability with a simple structure.

特開2015-5573号公報JP 2015-5573 A

本発明の実施形態は、簡単な構成で高い取付作業性を得られる柱状導体及び導体構造を提供する。 An embodiment of the present invention provides a columnar conductor and a conductor structure that can obtain high installation workability with a simple configuration.

本発明の実施形態によれば、板状導体と接続対象との間に設けられ、前記板状導体とともに前記接続対象にボルト締めされることにより、前記板状導体と前記接続対象とを電気的に接続する柱状導体であって、前記板状導体と前記接続対象との間に設けられ、前記板状導体に押し当てられる第1押し当て面と、前記接続対象に押し当てられる第2押し当て面と、前記第2押し当て面から前記第1押し当て面まで連続する貫通孔状のボルト挿通孔と、を有し、前記第1押し当て面及び前記第2押し当て面を介して前記板状導体と前記接続対象とを電気的に接続するとともに、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記板状導体に設けられた第1貫通孔に挿通されたボルトを前記ボルト挿通孔に挿通可能とする本体部と、前記ボルト挿通孔と前記第1押し当て面上における位置をずらして配置され、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記第1押し当て面から前記板状導体側に向かって延び、前記板状導体に前記第1貫通孔と別に設けられた複数の第2貫通孔のそれぞれと嵌合する複数の嵌合部と、を備えた柱状導体が提供される。 According to the embodiment of the present invention, the plate-shaped conductor and the connection object are electrically connected by being provided between the plate-shaped conductor and the connection object and bolted to the connection object together with the plate-shaped conductor. a first pressing surface provided between the plate-like conductor and the connection object and pressed against the plate-like conductor; and a second pressing surface pressed against the connection object. and a through-hole-shaped bolt insertion hole continuous from the second pressing surface to the first pressing surface, and the plate through the first pressing surface and the second pressing surface The plate-shaped conductor is electrically connected to the connection target, and is inserted into a first through hole provided in the plate-shaped conductor in a state in which the first pressing surface is pressed against the plate-shaped conductor. a body portion that allows a bolt to be inserted through the bolt insertion hole ; and a position of the bolt insertion hole and the first pressing surface that are displaced from each other , and the first pressing surface is pressed against the plate-like conductor. In this state, a plurality of second through holes extending from the first pressing surface toward the plate-shaped conductor and fitted into a plurality of second through holes provided separately from the first through holes in the plate-shaped conductor and a fitting portion.

簡単な構成で高い取付作業性を得られる柱状導体及び導体構造が提供される。 Provided are a columnar conductor and a conductor structure capable of obtaining high installation workability with a simple configuration.

実施形態に係る導体構造を模式的に表す断面図である。It is a sectional view showing typically the conductor structure concerning an embodiment. 実施形態に係る第1板状導体及び柱状導体を模式的に表す断面図である。FIG. 3 is a cross-sectional view schematically showing a first plate-shaped conductor and columnar conductors according to the embodiment; 実施形態に係る柱状導体を模式的に表す斜視図である。1 is a perspective view schematically showing a columnar conductor according to an embodiment; FIG. 実施形態に係る柱状導体の変形例を模式的に表す断面図である。FIG. 5 is a cross-sectional view schematically showing a modification of the columnar conductor according to the embodiment; 実施形態に係る柱状導体の変形例を模式的に表す斜視図である。FIG. 11 is a perspective view schematically showing a modification of the columnar conductor according to the embodiment; 図6(a)~図6(d)は、実施形態に係る柱状導体の変形例を模式的に表す平面図である。6A to 6D are plan views schematically showing modifications of the columnar conductor according to the embodiment. 実施形態に係る柱状導体の変形例を模式的に表す断面図である。FIG. 5 is a cross-sectional view schematically showing a modification of the columnar conductor according to the embodiment; 実施形態に係る柱状導体の変形例を模式的に表す斜視図である。FIG. 11 is a perspective view schematically showing a modification of the columnar conductor according to the embodiment;

以下に、各実施の形態について図面を参照しつつ説明する。
なお、図面は模式的または概念的なものであり、各部分の厚みと幅との関係、部分間の大きさの比率などは、必ずしも現実のものと同一とは限らない。また、同じ部分を表す場合であっても、図面により互いの寸法や比率が異なって表される場合もある。
なお、本願明細書と各図において、既出の図に関して前述したものと同様の要素には同一の符号を付して詳細な説明は適宜省略する。
Each embodiment will be described below with reference to the drawings.
Note that the drawings are schematic or conceptual, and the relationship between the thickness and width of each portion, the size ratio between portions, and the like are not necessarily the same as the actual ones. Also, even when the same parts are shown, the dimensions and ratios may be different depending on the drawing.
In addition, in the present specification and each figure, the same reference numerals are given to the same elements as those described above with respect to the already-appearing figures, and detailed description thereof will be omitted as appropriate.

図1は、実施形態に係る導体構造を模式的に表す断面図である。
図1に表したように、導体構造10は、第1板状導体11(板状導体)と、第2板状導体12(別の板状導体)と、絶縁部材13と、柱状導体14と、を備える。導体構造10は、接続対象2との電気的な接続を得る。
FIG. 1 is a cross-sectional view schematically showing a conductor structure according to an embodiment.
As shown in FIG. 1, the conductor structure 10 includes a first plate-shaped conductor 11 (plate-shaped conductor), a second plate-shaped conductor 12 (another plate-shaped conductor), an insulating member 13, and a columnar conductor 14. , provided. The conductor structure 10 obtains an electrical connection with the connection object 2 .

接続対象2は、例えば、高電圧・大電流を扱う電力変換装置に用いられるスイッチング素子やコンデンサなどの電子部品である。換言すれば、導体構造10は、接続対象2を電力変換装置の他の電子部品などと電気的に接続するための配線である。導体構造10は、換言すれば、電力変換装置の配線構造である。ここで、高電圧とは、例えば、直流おいて750Vを、交流において600Vを超える電圧である。 The connection target 2 is, for example, an electronic component such as a switching element or a capacitor used in a power converter that handles high voltage and large current. In other words, the conductor structure 10 is wiring for electrically connecting the connection object 2 to other electronic components of the power converter. The conductor structure 10 is, in other words, the wiring structure of the power converter. Here, the high voltage is, for example, a voltage exceeding 750 V for direct current and 600 V for alternating current.

第1板状導体11、第2板状導体12、及び柱状導体14は、換言すれば、配線部材である。第1板状導体11及び第2板状導体12は、例えば、ブスバーあるいはバスバーなどと呼ばれる場合もある。第1板状導体11、第2板状導体12、及び柱状導体14には、例えば、銅、真鍮、アルミニウムなどの金属材料が用いられる。但し、第1板状導体11、第2板状導体12、及び柱状導体14の材料は、金属材料に限ることなく、導電性を有する任意の材料でよい。 In other words, the first plate-shaped conductor 11, the second plate-shaped conductor 12, and the columnar conductor 14 are wiring members. The first plate-like conductor 11 and the second plate-like conductor 12 are sometimes called, for example, busbars or busbars. Metal materials such as copper, brass, and aluminum are used for the first plate-shaped conductor 11, the second plate-shaped conductor 12, and the columnar conductor 14, for example. However, the materials of the first plate-shaped conductor 11, the second plate-shaped conductor 12, and the columnar conductor 14 are not limited to metal materials, and may be any conductive material.

接続対象2は、第1板状導体11を接続するための第1接続部2aと、第2板状導体12を接続するための第2接続部2bと、を有する。接続対象2が電子部品である場合、第1接続部2a及び第2接続部2bは、端子あるいは電極である。例えば、接続対象2がコンデンサである場合には、第1接続部2aがアノード及びカソードの一方であり、第2接続部2bがアノード及びカソードの他方である。例えば、接続対象2が半導体スイッチング素子である場合には、第1接続部2aが第1主電極(例えばコレクタなど)であり、第2接続部2bが第2主電極(例えばエミッタなど)である。 The connection target 2 has a first connection portion 2 a for connecting the first plate-shaped conductor 11 and a second connection portion 2 b for connecting the second plate-shaped conductor 12 . When the connection target 2 is an electronic component, the first connection portion 2a and the second connection portion 2b are terminals or electrodes. For example, when the connection object 2 is a capacitor, the first connection portion 2a is one of the anode and the cathode, and the second connection portion 2b is the other of the anode and the cathode. For example, when the connection target 2 is a semiconductor switching element, the first connection portion 2a is the first main electrode (for example, collector), and the second connection portion 2b is the second main electrode (for example, emitter). .

第1板状導体11は、貫通孔11aを有する。第1板状導体11は、接続対象2と反対側から貫通孔11aに挿通されるボルト4aによって接続対象2にボルト締めされることにより、接続対象2に取り付けられる。第1接続部2aは、ボルト4aと噛合するネジ孔3aを有する。貫通孔11aにボルト4aを挿通し、ボルト4aをネジ孔3aに噛合させ、ボルト4aの頭部と接続対象2との間に第1板状導体11を挟み込む。これにより、第1板状導体11が、接続対象2に取り付けられる。 The first plate-shaped conductor 11 has a through hole 11a. The first plate-shaped conductor 11 is attached to the connection object 2 by being bolted to the connection object 2 with a bolt 4a inserted through the through hole 11a from the opposite side of the connection object 2 . The first connection portion 2a has a screw hole 3a that meshes with the bolt 4a. A bolt 4a is inserted through the through hole 11a, the bolt 4a is engaged with the screw hole 3a, and the first plate-like conductor 11 is sandwiched between the head of the bolt 4a and the connection object 2. As shown in FIG. Thereby, the first plate-shaped conductor 11 is attached to the connection target 2 .

同様に、第2板状導体12は、貫通孔12aを有する。第1板状導体12は、接続対象2と反対側から貫通孔12aに挿通されるボルト4bによって接続対象2にボルト締めされることにより、接続対象2に取り付けられる。第2接続部2bは、ボルト4bと噛合するネジ孔3bを有する。貫通孔12aにボルト4bを挿通し、ボルト4bをネジ孔3bに噛合させ、ボルト4bの頭部と接続対象2との間に第2板状導体12を挟み込む。これにより、第2板状導体12が、接続対象2に取り付けられる。 Similarly, the second plate-shaped conductor 12 has a through hole 12a. The first plate-shaped conductor 12 is attached to the connection object 2 by being bolted to the connection object 2 with a bolt 4b inserted through the through hole 12a from the side opposite to the connection object 2 . The second connecting portion 2b has a screw hole 3b that meshes with the bolt 4b. The bolt 4b is inserted through the through hole 12a, the bolt 4b is engaged with the screw hole 3b, and the second plate-shaped conductor 12 is sandwiched between the head of the bolt 4b and the connection target 2. Thereby, the second plate-shaped conductor 12 is attached to the connection target 2 .

柱状導体14は、第1板状導体11と接続対象2の第1接続部2aとの間に設けられ、第1板状導体11とともに接続対象2にボルト締めされることにより、第1板状導体11と接続対象2の第1接続部2aとを電気的に接続する。第1板状導体11は、柱状導体14を介して接続対象2の第1接続部2aと電気的に接続される。 The columnar conductor 14 is provided between the first plate-shaped conductor 11 and the first connection portion 2a of the connection target 2, and is bolted to the connection target 2 together with the first plate-shaped conductor 11 to form the first plate-shaped conductor 14. The conductor 11 and the first connection portion 2a of the connection target 2 are electrically connected. The first plate-shaped conductor 11 is electrically connected to the first connection portion 2 a of the connection target 2 via the columnar conductor 14 .

第2板状導体12は、第2接続部2bに押し当てられることにより、接続対象2の第2接続部2bと電気的に接続される。第2板状導体12は、例えば、第2接続部2bに直接的に当接することにより、第2接続部2bと電気的に接続される。第2板状導体12は、例えば、導電シートなどの他の導電部材を挟んで第2接続部2bに押し当てられることにより、第2接続部2bと電気的に接続してもよい。 The second plate-shaped conductor 12 is electrically connected to the second connection portion 2b of the connection target 2 by being pressed against the second connection portion 2b. The second plate-shaped conductor 12 is electrically connected to the second connection portion 2b, for example, by directly contacting the second connection portion 2b. The second plate-shaped conductor 12 may be electrically connected to the second connection portion 2b by, for example, pressing against the second connection portion 2b with another conductive member such as a conductive sheet interposed therebetween.

第2板状導体12の少なくとも一部は、接続対象2と第1板状導体11との間に設けられる。第1板状導体11及び第2板状導体12は、互いに少なくとも一部を重ね合わせた状態で接続対象2に取り付けられる。 At least part of the second plate-shaped conductor 12 is provided between the connection object 2 and the first plate-shaped conductor 11 . The first plate-shaped conductor 11 and the second plate-shaped conductor 12 are attached to the connection object 2 in a state in which at least a part of them overlap each other.

このように、第1板状導体11が接続対象2の第1接続部2aと電気的に接続され、第2板状導体12が接続対象2の第2接続部2bと電気的に接続される場合に、第1板状導体11及び第2板状導体12の少なくとも一部を重ね合わせることにより、例えば、導体構造10の省スペース化を図ることができるとともに、第1板状導体11と第2板状導体12との間のインダクタンスを低減させることができる。これにより、例えば、電力変換装置の高速スイッチング時に異常電圧が発生してしまうことなどを抑制することができる。このような構造は、例えば、ラミネートブスバーなどと呼ばれる場合もある。 Thus, the first plate-shaped conductor 11 is electrically connected to the first connection portion 2a of the connection target 2, and the second plate-shaped conductor 12 is electrically connected to the second connection portion 2b of the connection target 2. In this case, by overlapping at least a part of the first plate-shaped conductor 11 and the second plate-shaped conductor 12, for example, the space of the conductor structure 10 can be reduced, and the first plate-shaped conductor 11 and the second plate-shaped conductor The inductance between the two plate-shaped conductors 12 can be reduced. As a result, for example, it is possible to suppress the occurrence of an abnormal voltage during high-speed switching of the power converter. Such a structure is sometimes called, for example, a laminate busbar.

絶縁部材13は、第1板状導体11と第2板状導体12との間に設けられる。絶縁部材13は、第1板状導体11と第2板状導体12との間、及び第1接続部2aと第2接続部2bとの間を電気的に絶縁する。 The insulating member 13 is provided between the first plate-shaped conductor 11 and the second plate-shaped conductor 12 . The insulating member 13 electrically insulates between the first plate-shaped conductor 11 and the second plate-shaped conductor 12 and between the first connection portion 2a and the second connection portion 2b.

絶縁部材13は、ボルト4bを貫通孔12a及び第2接続部2bに挿通するための貫通孔13aを有する。また、第2板状導体12及び絶縁部材13は、柱状導体14を挿通するための貫通孔12b、13bを有する。貫通孔13bの外形形状は、柱状導体14の外形形状よりも大きく、柱状導体14と接触しない。これにより、第1板状導体11と第2板状導体12とを重ねた場合にも、第1板状導体11と第2板状導体12との短絡を抑制しつつ、柱状導体14を介して第1板状導体11と接続対象2の第1接続部2aとを電気的に接続することができる。 The insulating member 13 has a through hole 13a for inserting the bolt 4b through the through hole 12a and the second connecting portion 2b. Further, the second plate-shaped conductor 12 and the insulating member 13 have through holes 12b and 13b through which the columnar conductor 14 is inserted. The outer shape of the through hole 13 b is larger than the outer shape of the columnar conductor 14 and does not contact the columnar conductor 14 . As a result, even when the first plate-shaped conductor 11 and the second plate-shaped conductor 12 are overlapped, short-circuiting between the first plate-shaped conductor 11 and the second plate-shaped conductor 12 is suppressed, and at the same time, a short circuit is generated through the columnar conductor 14 . The first plate-shaped conductor 11 and the first connecting portion 2a of the connection object 2 can be electrically connected to each other.

図2は、実施形態に係る第1板状導体及び柱状導体を模式的に表す断面図である。
図3は、実施形態に係る柱状導体を模式的に表す斜視図である。
図1~図3に表したように、柱状導体14は、本体部20と、嵌合部22と、を有する。
FIG. 2 is a cross-sectional view schematically showing a first plate-shaped conductor and columnar conductors according to the embodiment.
FIG. 3 is a perspective view schematically showing a columnar conductor according to the embodiment.
As shown in FIGS. 1 to 3, the columnar conductor 14 has a body portion 20 and a fitting portion 22. As shown in FIGS.

本体部20は、第1板状導体11と接続対象2との間に設けられ、第1板状導体11に押し当てられる第1押し当て面20aと、接続対象2に押し当てられる第2押し当て面20bと、を有し、第1押し当て面20a及び第2押し当て面20bを介して第1板状導体11と接続対象2の第1接続部2aとを電気的に接続する。 The body portion 20 is provided between the first plate-shaped conductor 11 and the connection target 2, and has a first pressing surface 20a pressed against the first plate-shaped conductor 11 and a second pressing surface 20a pressed against the connection target 2. The first plate-shaped conductor 11 and the first connecting portion 2a of the connection target 2 are electrically connected via the first pressing surface 20a and the second pressing surface 20b.

嵌合部22は、第1押し当て面20aが第1板状導体11に押し当てられた状態において、第1押し当て面20aから第1板状導体11側に向かって延び、第1板状導体11に設けられた貫通孔11aと嵌合する。嵌合部22は、換言すれば、第1押し当て面20aから突出するように設けられる。嵌合部22の外形形状は、貫通孔11aの外形形状と実質的に同じか僅かに小さい程度に形成される。 The fitting portion 22 extends from the first pressing surface 20a toward the first plate-shaped conductor 11 in a state where the first pressing surface 20a is pressed against the first plate-shaped conductor 11, and extends toward the first plate-shaped conductor 11. It fits into the through hole 11 a provided in the conductor 11 . In other words, the fitting portion 22 is provided so as to protrude from the first pressing surface 20a. The outer shape of the fitting portion 22 is substantially the same as or slightly smaller than the outer shape of the through hole 11a.

本体部20の第1押し当て面20aと第2押し当て面20bとの間の長さL1は、第2板状導体12及び絶縁部材13の厚さに対応して設定される(図1参照)。本体部20の長さL1は、例えば、第2板状導体12の厚さ及び絶縁部材13の厚さの合計と実質的に同じ長さに設定される。これにより、第1板状導体11と接続対象2との間に第2板状導体12と絶縁部材13とを設けた場合にも、柱状導体14を介して第1板状導体11と接続対象2の第1接続部2aとを適切に電気的に接続することができる。なお、本体部20の長さL1は、例えば、第2板状導体12の厚さ及び絶縁部材13の厚さの合計よりも長くしてもよい。 The length L1 between the first pressing surface 20a and the second pressing surface 20b of the main body 20 is set according to the thicknesses of the second plate-shaped conductor 12 and the insulating member 13 (see FIG. 1). ). The length L1 of the body portion 20 is set to be substantially the same length as the sum of the thickness of the second plate-shaped conductor 12 and the thickness of the insulating member 13, for example. As a result, even when the second plate-shaped conductor 12 and the insulating member 13 are provided between the first plate-shaped conductor 11 and the connection object 2, the first plate-shaped conductor 11 and the connection object can be connected through the columnar conductor 14. 2 can be appropriately electrically connected to the first connecting portion 2a. Note that the length L1 of the main body portion 20 may be longer than the sum of the thickness of the second plate-shaped conductor 12 and the thickness of the insulating member 13, for example.

本体部20及び嵌合部22は、第2押し当て面20bから嵌合部22の端部22aまで連続する貫通孔状のボルト挿通孔24を有する。嵌合部22のボルト挿通孔24と直交する方向の幅W2は、本体部20のボルト挿通孔24と直交する方向の幅W1よりも狭い。第1押し当て面20aは、嵌合部22の周囲に設けられる。第1板状導体11の貫通孔11aは、嵌合部22と嵌合するとともに、ボルト挿通孔24にボルト4aを挿通するための貫通孔である。 The body portion 20 and the fitting portion 22 have a through-hole-like bolt insertion hole 24 continuous from the second pressing surface 20 b to the end portion 22 a of the fitting portion 22 . A width W2 of the fitting portion 22 in a direction orthogonal to the bolt insertion hole 24 is narrower than a width W1 of the main body portion 20 in a direction orthogonal to the bolt insertion hole 24 . The first pressing surface 20 a is provided around the fitting portion 22 . The through hole 11 a of the first plate-shaped conductor 11 is a through hole for fitting with the fitting portion 22 and for inserting the bolt 4 a into the bolt insertion hole 24 .

本体部20の外形形状は、円柱状である。嵌合部22の外形形状は、本体部20よりも径の小さい円柱状である。ボルト挿通孔24は、断面略円形の貫通孔である。本体部20、嵌合部22、及びボルト挿通孔24は、同軸状に配置される。すなわち、本体部20及び嵌合部22は、換言すれば、円筒状である。柱状導体14は、換言すれば、円筒の一端側の外径を小さくした形状に形成されている。 The outer shape of the main body portion 20 is cylindrical. The outer shape of the fitting portion 22 is cylindrical with a diameter smaller than that of the main body portion 20 . The bolt insertion hole 24 is a through hole having a substantially circular cross section. The body portion 20, the fitting portion 22, and the bolt insertion hole 24 are coaxially arranged. That is, the body portion 20 and the fitting portion 22 are, in other words, cylindrical. In other words, the columnar conductor 14 is formed in a shape having a smaller outer diameter on one end side of a cylinder.

第1板状導体11を接続対象2と電気的に接続する場合には、柱状導体14の嵌合部22を第1板状導体11の貫通孔11aに嵌合させた後、第1板状導体11と接続対象2とで本体部20を挟み、第1押し当て面20aを第1板状導体11に押し当て、第2押し当て面20bを接続対象2の第1接続部2aに押し当てる。この後、貫通孔11a及びボルト挿通孔24にボルト4aを挿通し、ボルト4aを第1接続部2aのネジ孔3aと噛合させる。これにより、第1板状導体11及び柱状導体14が接続対象2にボルト締めされ、接続対象2に取り付けられるとともに、第1板状導体11が柱状導体14を介して接続対象2の第1接続部2aと電気的に接続される。 When electrically connecting the first plate-shaped conductor 11 to the connection object 2, after fitting the fitting portion 22 of the columnar conductor 14 into the through hole 11a of the first plate-shaped conductor 11, the first plate-shaped conductor The body portion 20 is sandwiched between the conductor 11 and the connection target 2, the first pressing surface 20a is pressed against the first plate-shaped conductor 11, and the second pressing surface 20b is pressed against the first connection portion 2a of the connection target 2. . After that, the bolt 4a is inserted through the through hole 11a and the bolt insertion hole 24, and the bolt 4a is engaged with the screw hole 3a of the first connecting portion 2a. As a result, the first plate-shaped conductor 11 and the columnar conductor 14 are bolted to the connection target 2 and attached to the connection target 2, and the first plate-shaped conductor 11 is connected to the connection target 2 through the columnar conductor 14. It is electrically connected to the portion 2a.

第1押し当て面20aは、凹凸構造を有する。第1押し当て面20aは、格子状に形成された溝20gを有し、溝20gによって凹凸構造を形成している。このように、第1押し当て面20aに凹凸構造を設けることにより、例えば、第1押し当て面20aと第1板状導体11との点当たりを抑制し、点当たりを起こしてしまう場合と比べて接触面積を増加させることができる。また、第1押し当て面20aに凹凸構造を設けることにより、例えば、第1押し当て面20aと第1板状導体11との接触圧力を増加させることができる。このように、第1押し当て面20aに凹凸構造を設けることにより、第1押し当て面20aと第1板状導体11との接触面積の増加や接触圧力の増加を図ることができる。これにより、第1板状導体11と柱状導体14との間の接触抵抗の低下を図ることができる。 The first pressing surface 20a has an uneven structure. The first pressing surface 20a has grooves 20g formed in a grid pattern, and the grooves 20g form an uneven structure. Thus, by providing the concave-convex structure on the first pressing surface 20a, for example, point contact between the first pressing surface 20a and the first plate-shaped conductor 11 is suppressed. can increase the contact area. Further, by providing the uneven structure on the first pressing surface 20a, for example, the contact pressure between the first pressing surface 20a and the first plate-shaped conductor 11 can be increased. Thus, by providing the uneven structure on the first pressing surface 20a, it is possible to increase the contact area between the first pressing surface 20a and the first plate-shaped conductor 11 and to increase the contact pressure. Thereby, the contact resistance between the first plate-shaped conductor 11 and the columnar conductor 14 can be reduced.

なお、第1押し当て面20aの凹凸構造の形成方法は、格子状の溝20gに限定されるものではない。例えば、略平行に並ぶ複数の線状の溝を形成したり、同心円状に並ぶ複数の溝を形成したりすることにより、凹凸構造を形成してもよい。また、溝に限ることなく、1つあるいは複数の突起によって凹凸構造を形成してもよい。第1押し当て面20aの凹凸構造は、接触抵抗の低下を図ることができる任意の構造でよい。 The method for forming the uneven structure of the first pressing surface 20a is not limited to the grid-like grooves 20g. For example, the concave-convex structure may be formed by forming a plurality of linear grooves arranged substantially in parallel or by forming a plurality of grooves arranged concentrically. In addition, the concave-convex structure may be formed by one or a plurality of protrusions without being limited to grooves. The uneven structure of the first pressing surface 20a may be any structure capable of reducing the contact resistance.

柱状導体14において、第1押し当て面20aの面積は、嵌合部22の側面22bの面積よりも広い。より詳しくは、第1押し当て面20aの面積は、嵌合部22の側面22bの貫通孔11aと嵌合する部分の面積よりも広い。これにより、第1押し当て面20aの部分において、第1板状導体11との電気的な接続を適切に得ることができる。 In the columnar conductor 14 , the area of the first pressing surface 20 a is larger than the area of the side surface 22 b of the fitting portion 22 . More specifically, the area of the first pressing surface 20a is larger than the area of the portion of the side surface 22b of the fitting portion 22 that fits into the through hole 11a. Thereby, electrical connection with the first plate-shaped conductor 11 can be appropriately obtained at the portion of the first pressing surface 20a.

嵌合部22の第1押し当て面20aからの突出量L2は、第1板状導体11の厚さT1以下である。これにより、嵌合部22を貫通孔11aに嵌合させた際に、嵌合部22が第1板状導体11よりも突出してしまうことを抑制することができる。換言すれば、嵌合部22を貫通孔11aに嵌合させた際に、嵌合部22を貫通孔11a内のみに配置することができる。これにより、ボルト4aで第1板状導体11及び柱状導体14を接続対象2にボルト締めする際に、嵌合部22がボルト締めの妨げになってしまうことを抑制することができる。但し、ボルト4aの形状などによっては、嵌合部22の第1押し当て面20aからの突出量L2を、第1板状導体11の厚さT1よりも長くしてもよい。 A protrusion amount L2 of the fitting portion 22 from the first pressing surface 20a is equal to or less than the thickness T1 of the first plate-shaped conductor 11 . This can prevent the fitting portion 22 from protruding beyond the first plate-like conductor 11 when fitting the fitting portion 22 into the through hole 11a. In other words, when the fitting portion 22 is fitted into the through hole 11a, the fitting portion 22 can be arranged only within the through hole 11a. As a result, when bolting the first plate-shaped conductor 11 and the columnar conductor 14 to the connection target 2 with the bolts 4a, it is possible to prevent the fitting portion 22 from interfering with the bolting. However, the protrusion amount L2 of the fitting portion 22 from the first pressing surface 20a may be longer than the thickness T1 of the first plate-shaped conductor 11 depending on the shape of the bolt 4a.

以上、説明したように、本実施形態に係る導体構造10及び柱状導体14では、第1押し当て面20aが第1板状導体11に押し当てられた状態において、第1押し当て面20aから第1板状導体11側に向かって延び、第1板状導体11に設けられた貫通孔11aと嵌合する嵌合部22を柱状導体14に設けている。 As described above, in the conductor structure 10 and the columnar conductor 14 according to the present embodiment, in a state in which the first pressing surface 20a is pressed against the first plate-shaped conductor 11, the first pressing surface 20a is pressed against the first pressing surface 20a. The columnar conductor 14 is provided with a fitting portion 22 that extends toward the first plate-shaped conductor 11 side and fits into the through hole 11a provided in the first plate-shaped conductor 11 .

これにより、嵌合部22を第1板状導体11の貫通孔11aに嵌合させておくことで、ボルト締めの際などに、柱状導体14が落下するなど、柱状導体14が適切な位置からずれてしまうことを抑制することができる。 As a result, by fitting the fitting portion 22 into the through hole 11a of the first plate-shaped conductor 11, the columnar conductor 14 is prevented from falling from an appropriate position during bolting or the like. Displacement can be suppressed.

また、経験や時間が必要なロウ付けを行う必要が無く、第1板状導体11と柱状導体14との電気的な接続の品質を安定化させることができるとともに、製造コストの増加を抑制することができる。 In addition, there is no need to perform brazing, which requires experience and time, so that the quality of the electrical connection between the first plate-shaped conductor 11 and the columnar conductor 14 can be stabilized, and an increase in manufacturing costs can be suppressed. be able to.

このように、本実施形態に係る導体構造10及び柱状導体14によれば、簡単な構成で高い取付作業性を得ることができる。 As described above, according to the conductor structure 10 and the columnar conductor 14 according to the present embodiment, it is possible to obtain high attachment workability with a simple configuration.

図4は、実施形態に係る柱状導体の変形例を模式的に表す断面図である。
なお、上記実施形態と機能・構成上実質的に同じものについては、同符号を付し、詳細な説明は省略する。
FIG. 4 is a cross-sectional view schematically showing a modification of the columnar conductor according to the embodiment.
It should be noted that the same reference numerals are given to the parts that are substantially the same as those of the above-described embodiment in terms of function and configuration, and detailed description thereof will be omitted.

図4に表したように、この例において、柱状導体14は、シート状の導電部材30をさらに備える。導電部材30は、第1押し当て面20aと第1板状導体11との間に設けられる。第1押し当て面20aは、導電部材30を介して第1板状導体11に押し当てられる。 As shown in FIG. 4 , in this example, the columnar conductor 14 further includes a sheet-like conductive member 30 . The conductive member 30 is provided between the first pressing surface 20 a and the first plate-shaped conductor 11 . The first pressing surface 20 a is pressed against the first plate-shaped conductor 11 via the conductive member 30 .

導電部材30の形状は、第1押し当て面20aの形状に対応する。導電部材30は、例えば、環状の第1押し当て面20aに対応した環状のシート状に形成される。導電部材30は、例えば、第1押し当て面20aの全体と第1板状導体11との間に設けられる。 The shape of the conductive member 30 corresponds to the shape of the first pressing surface 20a. The conductive member 30 is formed, for example, in an annular sheet shape corresponding to the annular first pressing surface 20a. The conductive member 30 is provided, for example, between the entire first pressing surface 20 a and the first plate-shaped conductor 11 .

導電部材30の硬さは、例えば、本体部20の硬さよりも低い。換言すれば、導電部材30の弾性率は、本体部20の弾性率よりも低い。これにより、導電部材30を設けることによって、柱状導体14と第1板状導体11との間の接触面積をより増加させ、柱状導体14と第1板状導体11との間の接触抵抗をより低減させることができる。 The hardness of the conductive member 30 is lower than that of the main body 20, for example. In other words, the elastic modulus of the conductive member 30 is lower than the elastic modulus of the main body portion 20 . Accordingly, by providing the conductive member 30, the contact area between the columnar conductor 14 and the first plate-shaped conductor 11 is increased, and the contact resistance between the columnar conductor 14 and the first plate-shaped conductor 11 is increased. can be reduced.

このように、第1押し当て面20aは、第1板状導体11に直接押し当ててもよいし、導電部材30などの他の導電性の部材を介して第1板状導体11に押し当ててもよい。例えば、導電部材30を設ける場合などには、第1押し当て面20aに必ずしも凹凸構造を設けなくてもよい。第1押し当て面20aの凹凸構造は、必要に応じて設けられ、省略可能である。 Thus, the first pressing surface 20a may be directly pressed against the first plate-shaped conductor 11, or may be pressed against the first plate-shaped conductor 11 via another conductive member such as the conductive member 30. may For example, when the conductive member 30 is provided, the uneven structure may not necessarily be provided on the first pressing surface 20a. The concave-convex structure of the first pressing surface 20a is provided as necessary and can be omitted.

図5は、実施形態に係る柱状導体の変形例を模式的に表す斜視図である。
図5に表したように、この例において、柱状導体14の嵌合部22は、第1板状導体11の貫通孔11aとの係合により、貫通孔11aを軸とする本体部20(柱状導体14)の回転を規制する回転規制部22cを有する。
FIG. 5 is a perspective view schematically showing a modification of the columnar conductor according to the embodiment.
As shown in FIG. 5, in this example, the fitting portion 22 of the columnar conductor 14 engages with the through hole 11a of the first plate-shaped conductor 11 to form the main body portion 20 (columnar conductor) with the through hole 11a as an axis. It has a rotation restricting portion 22c that restricts the rotation of the conductor 14).

回転規制部22cは、嵌合部22の側面22bから外周方向に向かって突出する突起状である。貫通孔11aには、例えば、回転規制部22cの形状に対応した切り欠きが設けられる。これにより、回転規制部22cと貫通孔11aの切り欠きとの係合によって、貫通孔11aを軸とする回転を規制することができる。 The rotation restricting portion 22c has a protruding shape that protrudes from the side surface 22b of the fitting portion 22 in the outer peripheral direction. The through hole 11a is provided with, for example, a notch corresponding to the shape of the rotation restricting portion 22c. As a result, the rotation about the through-hole 11a can be restricted by the engagement between the rotation-regulating portion 22c and the notch of the through-hole 11a.

このように、貫通孔11aを軸とする回転を規制することにより、例えば、嵌合部22が、貫通孔11aを軸とする回転によって、貫通孔11aから抜け易くなってしまうことを抑制することができる。ボルト締めの際などにおける柱状導体14の落下を、より適切に抑制することができる。 By restricting the rotation about the through hole 11a in this way, for example, it is possible to prevent the fitting portion 22 from easily coming out of the through hole 11a due to the rotation about the through hole 11a. can be done. Dropping of the columnar conductor 14 at the time of bolting can be suppressed more appropriately.

なお、回転規制部22cの形状は、上記に限定されるものではない。例えば、中心側に向かって延びる突起を貫通孔11aに形成し、回転規制部22cを貫通孔11aの突起と係合する溝状に形成してもよい。回転規制部22cの形状は、貫通孔11aとの係合によって、貫通孔11aを軸とする回転を規制可能な任意の形状でよい。 Note that the shape of the rotation restricting portion 22c is not limited to the above. For example, a projection extending toward the center may be formed in the through hole 11a, and the rotation restricting portion 22c may be formed in a groove shape that engages with the projection of the through hole 11a. The shape of the rotation restricting portion 22c may be any shape that can restrict rotation about the through hole 11a by engaging with the through hole 11a.

図6(a)~図6(d)は、実施形態に係る柱状導体の変形例を模式的に表す平面図である。
図6(a)に表したように、嵌合部22の外形形状は、矩形状でもよい。図6(b)に表したように、嵌合部22の外形形状は、星型状でもよい。このように、嵌合部22の外形形状は、円形状に限ることなく、多角形状でもよい。なお、嵌合部22の外形形状とは、より詳しくは、ボルト挿通孔24の軸方向(貫通する方向)に見た嵌合部22の外形形状である。
6A to 6D are plan views schematically showing modifications of the columnar conductor according to the embodiment.
As shown in FIG. 6A, the outer shape of the fitting portion 22 may be rectangular. As shown in FIG. 6B, the outer shape of the fitting portion 22 may be star-shaped. Thus, the outer shape of the fitting portion 22 is not limited to a circular shape, and may be a polygonal shape. More specifically, the outer shape of the fitting portion 22 is the outer shape of the fitting portion 22 when viewed in the axial direction (the direction of penetration) of the bolt insertion hole 24 .

このように、嵌合部22の外形形状を多角形状とするとともに、第1板状導体11の貫通孔11aの外形形状を嵌合部22に対応した多角形状とした場合には、回転規制部22cなどを設けることなく、貫通孔11aを軸とする柱状導体14の回転を規制することができる。 Thus, when the outer shape of the fitting portion 22 is made polygonal and the outer shape of the through hole 11a of the first plate-shaped conductor 11 is made polygonal corresponding to the fitting portion 22, the rotation restricting portion Rotation of the columnar conductor 14 about the through hole 11a can be restricted without providing the 22c or the like.

嵌合部22の外形形状及び貫通孔11aの外形形状は、嵌合部22を貫通孔11aに嵌合させることができる任意の形状でよい。例えば、嵌合部22の外形形状を多角形状とし、貫通孔11aの外形形状を嵌合部22に外接する円形状としてもよい。反対に、貫通孔11aの外形形状を多角形状とし、嵌合部22の外形形状を貫通孔11aに内接する円形状としてもよい。 The outer shape of the fitting portion 22 and the outer shape of the through hole 11a may be any shape that allows the fitting portion 22 to be fitted into the through hole 11a. For example, the outer shape of the fitting portion 22 may be polygonal, and the outer shape of the through hole 11a may be circular so as to circumscribe the fitting portion 22 . On the contrary, the outer shape of the through hole 11a may be polygonal, and the outer shape of the fitting portion 22 may be circular inscribed in the through hole 11a.

また、図6(c)に表したように、本体部20の外形形状は、円形状に限ることなく、多角形状などでもよい。本体部20の外形形状は、接続対象2と第1板状導体11とを適切に電気的に接続することが可能な任意の形状でよい。 Moreover, as shown in FIG. 6C, the outer shape of the main body 20 is not limited to a circular shape, and may be polygonal or the like. The outer shape of the body portion 20 may be any shape that allows the connection target 2 and the first plate-shaped conductor 11 to be electrically connected appropriately.

図6(d)に表したように、ボルト挿通孔24の外形形状は、円形状に限ることなく、多角形状などでもよい。ボルト挿通孔24の外形形状は、ボルト4aを挿通可能な任意の形状でよい。 As shown in FIG. 6(d), the outer shape of the bolt insertion hole 24 is not limited to a circular shape, and may be polygonal or the like. The external shape of the bolt insertion hole 24 may be any shape through which the bolt 4a can be inserted.

図7は、実施形態に係る柱状導体の変形例を模式的に表す断面図である。
図7に表したように、接続対象2は、電子部品に限ることなく、他の板状導体などでもよい。接続対象2は、電子部品や配線部材など、柱状導体14を介して第1板状導体11との電気的な接続を得る必要がある任意の部材でよい。
FIG. 7 is a cross-sectional view schematically showing a modification of the columnar conductor according to the embodiment.
As shown in FIG. 7, the connection object 2 is not limited to electronic components, and may be other plate-shaped conductors. The connection target 2 may be any member that needs to be electrically connected to the first plate-shaped conductor 11 via the columnar conductor 14, such as an electronic component or wiring member.

この例において、接続対象2の第1接続部2aは、貫通孔状である。柱状導体14は、接続対象2の貫通孔状の第1接続部2aと嵌合する嵌合部40を有する。嵌合部40は、第2押し当て面20bが接続対象2に押し当てられた状態において、第2押し当て面20bから接続対象2側に向かって延び、接続対象2に設けられた貫通孔状の第1接続部2aと嵌合する。 In this example, the first connecting portion 2a of the connection target 2 is in the form of a through hole. The columnar conductor 14 has a fitting portion 40 that fits with the through-hole-shaped first connection portion 2 a of the connection target 2 . The fitting portion 40 extends from the second pressing surface 20b toward the connection target 2 in a state in which the second pressing surface 20b is pressed against the connection target 2, and has a through-hole shape provided in the connection target 2. is fitted with the first connecting portion 2a of the .

この例において、柱状導体14は、換言すれば、第1板状導体11の貫通孔11aと嵌合する第1嵌合部と、接続対象2の貫通孔状の第1接続部2aと嵌合する第2嵌合部と、を有する。第1嵌合部は、本体部20の一端側に設けられる。第2嵌合部は、本体部20の他端側に設けられる。 In this example, the columnar conductor 14 is, in other words, a first fitting portion that fits into the through-hole 11a of the first plate-shaped conductor 11 and a through-hole-shaped first connecting portion 2a that fits into the connection object 2 . and a second fitting portion. The first fitting portion is provided on one end side of the body portion 20 . The second fitting portion is provided on the other end side of the body portion 20 .

この場合、ボルト挿通孔24は、例えば、嵌合部22の端部22aから嵌合部40の端部40aまで連続する貫通孔状である。ボルト4aによる第1板状導体11及び柱状導体14の接続対象2へのボルト締めは、例えば、接続対象2の第1板状導体11と反対側にナットを配置し、ボルト4aとナットとの間に第1板状導体11、柱状導体14、及び接続対象2を挟み込むことによって行われる。このように、第1板状導体11及び柱状導体14のボルト締めは、接続対象2にネジ孔3aを設けることによって行ってもよいし、ナットなどの他の部材を介して行ってもよい。 In this case, the bolt insertion hole 24 is, for example, a through-hole shape that continues from the end 22 a of the fitting portion 22 to the end 40 a of the fitting portion 40 . Bolting of the first plate-shaped conductor 11 and the columnar conductor 14 to the connection object 2 with the bolt 4a is performed by, for example, arranging a nut on the opposite side of the connection object 2 from the first plate-shaped conductor 11 and tightening the bolt 4a and the nut. This is performed by sandwiching the first plate-shaped conductor 11, the columnar conductor 14, and the connection target 2 therebetween. Thus, the first plate-shaped conductor 11 and the column-shaped conductor 14 may be bolted by providing the screw hole 3a in the connection object 2, or by using another member such as a nut.

このように、接続対象2が他の板状導体である場合などには、第1接続部2aを貫通孔状とし、柱状導体14に第1接続部2aと嵌合する嵌合部40を設けてもよい。これにより、ボルト締めの際などにおける柱状導体14の落下を、より適切に抑制することができる。 In this way, when the connection target 2 is another plate-shaped conductor, the first connection portion 2a is formed in a through-hole shape, and the columnar conductor 14 is provided with the fitting portion 40 to be fitted with the first connection portion 2a. may This makes it possible to more appropriately prevent the columnar conductors 14 from falling during bolting or the like.

なお、接続対象2が板状導体である場合、第1接続部2aは、貫通孔状に限ることなく、例えば、ボルト4aと噛合するネジ孔でもよい。第1接続部2aをネジ孔とした場合には、嵌合部40は、省略される。 In addition, when the connection target 2 is a plate-shaped conductor, the first connection portion 2a is not limited to a through-hole shape, and may be, for example, a screw hole that meshes with the bolt 4a. If the first connecting portion 2a is a screw hole, the fitting portion 40 is omitted.

図8は、実施形態に係る柱状導体の変形例を模式的に表す斜視図である。
図8に表したように、この例では、嵌合部22が、本体部20及びボルト挿通孔24と軸をずらして配置されている。この例において、ボルト挿通孔24は、第2押し当て面20bから第1押し当て面20aまで連続する貫通孔状である。
FIG. 8 is a perspective view schematically showing a modification of the columnar conductor according to the embodiment.
As shown in FIG. 8 , in this example, the fitting portion 22 is arranged with its axis shifted from the main body portion 20 and the bolt insertion hole 24 . In this example, the bolt insertion hole 24 is a through-hole shape continuous from the second pressing surface 20b to the first pressing surface 20a.

このように、嵌合部22は、ボルト挿通孔24とずらして配置してもよい。この場合、第1板状導体11には、嵌合部22と嵌合する貫通孔11aとは別に、ボルト4aを挿通するための貫通孔を設ける必要がある。このように、嵌合部22を嵌合させる第1板状導体11の貫通孔11aは、必ずしもボルト4aを挿通する貫通孔と共通でなくてもよい。 In this manner, the fitting portion 22 may be arranged to be offset from the bolt insertion hole 24 . In this case, the first plate-shaped conductor 11 needs to be provided with a through-hole for inserting the bolt 4a, in addition to the through-hole 11a to be fitted with the fitting portion 22 . Thus, the through hole 11a of the first plate-shaped conductor 11 into which the fitting portion 22 is fitted does not necessarily have to be common to the through hole through which the bolt 4a is inserted.

また、この例では、柱状導体14が、2つの嵌合部22を有している。嵌合部22の数は、2つに限ることなく、3つ以上でもよい。このように、嵌合部22をボルト挿通孔24とずらして配置する場合などには、柱状導体14は、複数の嵌合部22を有してもよい。 Also, in this example, the columnar conductor 14 has two fitting portions 22 . The number of fitting portions 22 is not limited to two, and may be three or more. In this way, the columnar conductor 14 may have a plurality of fitting portions 22 when the fitting portions 22 are displaced from the bolt insertion holes 24 .

本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

2 接続対象、 2a 第1接続部、 2b 第2接続部、 3a、3b ネジ孔、 4a、4b ボルト、 10 導体構造、 11 第1板状導体、 11a 貫通孔、 12 第2板状導体、 12a、12b 貫通孔、 13 絶縁部材、 13a、13b 貫通孔、 14 柱状導体、 20 本体部、 20a 第1押し当て面、 20b 第2押し当て面、 20g 溝、 22 嵌合部、 22a 端部、 22b 側面、 22c 回転規制部、 24 ボルト挿通孔、 30 導電部材、 40 嵌合部、 40a 端部 2 connection object 2a first connection part 2b second connection part 3a, 3b screw hole 4a, 4b bolt 10 conductor structure 11 first plate-like conductor 11a through-hole 12 second plate-like conductor 12a , 12b through hole 13 insulating member 13a, 13b through hole 14 columnar conductor 20 body portion 20a first pressing surface 20b second pressing surface 20g groove 22 fitting portion 22a end portion 22b Side surface 22c Rotation restricting portion 24 Bolt insertion hole 30 Conductive member 40 Fitting portion 40a End

Claims (8)

板状導体と接続対象との間に設けられ、前記板状導体とともに前記接続対象にボルト締めされることにより、前記板状導体と前記接続対象とを電気的に接続する柱状導体であって、
前記板状導体と前記接続対象との間に設けられ、前記板状導体に押し当てられる第1押し当て面と、前記接続対象に押し当てられる第2押し当て面と、前記第2押し当て面から前記第1押し当て面まで連続する貫通孔状のボルト挿通孔と、を有し、前記第1押し当て面及び前記第2押し当て面を介して前記板状導体と前記接続対象とを電気的に接続するとともに、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記板状導体に設けられた第1貫通孔に挿通されたボルトを前記ボルト挿通孔に挿通可能とする本体部と、
前記ボルト挿通孔と前記第1押し当て面上における位置をずらして配置され、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記第1押し当て面から前記板状導体側に向かって延び、前記板状導体に前記第1貫通孔と別に設けられた複数の第2貫通孔のそれぞれと嵌合する複数の嵌合部と、
を備えた柱状導体。
A columnar conductor that is provided between a plate-shaped conductor and a connection target and electrically connects the plate-shaped conductor and the connection target by being bolted to the connection target together with the plate-shaped conductor,
A first pressing surface that is provided between the plate-like conductor and the connection object and is pressed against the plate-like conductor, a second pressing surface that is pressed against the connection object, and the second pressing surface. and a through hole-shaped bolt insertion hole continuous from the first pressing surface to the first pressing surface, and the plate-like conductor and the connection object are electrically connected via the first pressing surface and the second pressing surface. In addition, in a state in which the first pressing surface is pressed against the plate-shaped conductor, a bolt inserted through a first through hole provided in the plate-shaped conductor can be inserted into the bolt insertion hole. and a main body to
The bolt insertion hole and the first pressing surface are displaced from each other , and in a state in which the first pressing surface is pressed against the plate-like conductor, the plate-like conductor extends from the first pressing surface. a plurality of fitting portions that extend sideways and fit into a plurality of second through holes provided separately from the first through holes in the plate-shaped conductor;
A columnar conductor with
前記第1押し当て面は、凹凸構造を有する請求項1記載の柱状導体。 2. The columnar conductor according to claim 1, wherein said first pressing surface has an uneven structure. 前記第1押し当て面と前記板状導体との間に設けられるシート状の導電部材をさらに備え、
前記第1押し当て面は、前記導電部材を介して前記板状導体に押し当てられる請求項1又は2に記載の柱状導体。
Further comprising a sheet-shaped conductive member provided between the first pressing surface and the plate-shaped conductor,
3. The columnar conductor according to claim 1, wherein the first pressing surface is pressed against the plate-shaped conductor via the conductive member.
前記第1押し当て面の面積は、前記嵌合部の側面の面積よりも広い請求項1~3のいずれか1つに記載の柱状導体。 The columnar conductor according to any one of claims 1 to 3, wherein the area of the first pressing surface is larger than the area of the side surface of the fitting portion. 前記嵌合部の前記第1押し当て面からの突出量は、前記板状導体の厚さ以下である請求項1~4のいずれか1つに記載の柱状導体。 The columnar conductor according to any one of claims 1 to 4, wherein the projection amount of the fitting portion from the first pressing surface is equal to or less than the thickness of the plate-shaped conductor. 前記嵌合部は、前記第2貫通孔との係合により、前記第2貫通孔を軸とする回転を規制する回転規制部を有する請求項1~5のいずれか1つに記載の柱状導体。 The columnar conductor according to any one of claims 1 to 5, wherein the fitting portion has a rotation restricting portion that restricts rotation about the second through hole by engaging with the second through hole. . 板状導体と、
前記板状導体と接続対象との間に設けられ、前記板状導体とともに前記接続対象にボルト締めされることにより、前記板状導体と前記接続対象とを電気的に接続する柱状導体と、
を備えた導体構造であって、
前記板状導体は、ボルトを挿通するための第1貫通孔と、前記第1貫通孔と別に設けられた複数の第2貫通孔と、を有し、
前記柱状導体は、
前記板状導体と前記接続対象との間に設けられ、前記板状導体に押し当てられる第1押し当て面と、前記接続対象に押し当てられる第2押し当て面と、前記第2押し当て面から前記第1押し当て面まで連続する貫通孔状のボルト挿通孔と、を有し、前記第1押し当て面及び前記第2押し当て面を介して前記板状導体と前記接続対象とを電気的に接続するとともに、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記第1貫通孔に挿通された前記ボルトを前記ボルト挿通孔に挿通可能とする本体部と、
前記ボルト挿通孔と前記第1押し当て面上における位置をずらして配置され、前記第1押し当て面が前記板状導体に押し当てられた状態において、前記第1押し当て面から前記板状導体側に向かって延び、前記板状導体に設けられた前記複数の第2貫通孔のそれぞれと嵌合する複数の嵌合部と、
を有する導体構造。
a plate-shaped conductor;
a columnar conductor that is provided between the plate-shaped conductor and the connection target and electrically connects the plate-shaped conductor and the connection target by being bolted together with the plate-shaped conductor to the connection target;
A conductor structure comprising
The plate-shaped conductor has a first through hole for inserting a bolt and a plurality of second through holes provided separately from the first through hole ,
The columnar conductor is
A first pressing surface that is provided between the plate-like conductor and the connection object and is pressed against the plate-like conductor, a second pressing surface that is pressed against the connection object, and the second pressing surface. and a through hole-shaped bolt insertion hole continuous from the first pressing surface to the first pressing surface, and the plate-like conductor and the connection object are electrically connected via the first pressing surface and the second pressing surface. a body portion that is directly connected and allows the bolt inserted through the first through hole to be inserted through the bolt insertion hole in a state in which the first pressing surface is pressed against the plate-like conductor;
The bolt insertion hole and the first pressing surface are displaced from each other , and in a state in which the first pressing surface is pressed against the plate-like conductor, the plate-like conductor extends from the first pressing surface. a plurality of fitting portions extending toward the side and fitting into the plurality of second through holes provided in the plate-shaped conductor;
A conductor structure having a
前記接続対象と電気的に接続されるとともに、少なくとも一部が前記接続対象と前記板状導体との間に設けられる別の板状導体と、
前記板状導体と前記別の板状導体との間に設けられる絶縁部材と、
をさらに備え、
前記別の板状導体及び前記絶縁部材は、前記柱状導体を挿通するための貫通孔を有し、
前記本体部の前記第1押し当て面と前記第2押し当て面との間の長さは、前記別の板状導体及び前記絶縁部材の厚さに対応して設定される請求項7記載の導体構造。
another plate-shaped conductor that is electrically connected to the connection target and at least a portion of which is provided between the connection target and the plate-shaped conductor;
an insulating member provided between the plate-shaped conductor and the another plate-shaped conductor;
further comprising
The another plate-shaped conductor and the insulating member have through holes for inserting the columnar conductors,
8. The length between the first pressing surface and the second pressing surface of the body portion according to claim 7, wherein the length is set according to the thickness of the another plate-shaped conductor and the insulating member. conductor structure.
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JP2012209165A (en) 2011-03-30 2012-10-25 Iriso Electronics Co Ltd Electric connection tool
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