JP5488437B2

JP5488437B2 - Electrical connection structure

Info

Publication number: JP5488437B2
Application number: JP2010273571A
Authority: JP
Inventors: 周各務; 淳近藤; 一史芹澤
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2014-05-14
Anticipated expiration: 2030-12-08
Also published as: JP2012124016A

Description

本発明は、複数のターミナルを樹脂製の保持部材にて保持した電気接続構造体に関するものである。 The present invention relates to an electrical connection structure in which a plurality of terminals are held by a resin holding member.

内燃機関に噴射される燃料の圧力を検出する圧力センサを、インジェクタのボデーに螺子締結するものが提案されている（例えば、特許文献１参照）。この圧力センサは、複数のターミナルを備えており、それらのターミナルはインサート成形によって一体化されている。 There has been proposed one in which a pressure sensor for detecting the pressure of fuel injected into an internal combustion engine is screwed to a body of an injector (see, for example, Patent Document 1). This pressure sensor is provided with a plurality of terminals, and these terminals are integrated by insert molding.

特開２０１０−２４２５７４号公報JP 2010-242574 A

しかしながら、ターミナルをインサート成形する方法では、組付けターミナルの本数が多くなった場合、ターミナル部分の成形型の構造が複雑になり、成形が困難または成形型の製造コストが高くなるという問題が発生する。 However, in the method of insert molding the terminal, when the number of assembly terminals increases, the structure of the molding die of the terminal part becomes complicated, and there arises a problem that molding is difficult or the manufacturing cost of the molding die increases. .

本発明は上記点に鑑みて、複数のターミナルを一体的に保持する電気接続構造体において、成形型の構造の簡素化を可能にすることを目的とする。 In view of the above points, an object of the present invention is to make it possible to simplify the structure of a mold in an electrical connection structure that integrally holds a plurality of terminals.

上記目的を達成するため、請求項１に記載の発明では、所定の並び方向（Ｘ）に沿って並べて配置された導電性金属板材よりなる第１ターミナル（１）および第２ターミナル（２）と、第１ターミナル（１）および第２ターミナル（２）の並び方向（Ｘ）両側に配置された電気絶縁性樹脂よりなる第１保持部材（３）および第２保持部材（４）とを備え、
第１ターミナル（１）および第２ターミナル（２）を第１保持部材（３）および第２保持部材（４）により挟持した後、第１保持部材（３）と第２保持部材（４）とを結合手段（３４、４４）により結合した電気接続構造体であって、第１保持部材（３）は、並び方向（Ｘ）に沿って第２保持部材（４）側に向かって延びる第１保持突起（３１）を備え、第２保持部材（４）は、並び方向（Ｘ）に沿って第１保持部材（３）側に向かって延びるとともに、第１保持突起（３１）と対向しない位置に配置された第２保持突起（４１）を備え、第１ターミナル（１）は、第１保持突起（３１）が挿入される第１ターミナル貫通孔（１３）を備え、第２ターミナル（２）は、第２保持突起（４１）が挿入される第２ターミナル貫通孔（２３）を備え、第１保持突起（３１）が第１ターミナル貫通孔（１３）に挿入されて第１保持突起（３１）の先端面が第２ターミナル（２）に当接することにより、第１保持突起（３１）の先端面と第２保持部材（４）との間に第２ターミナル（２）が挟持され、第２保持突起（４１）が第２ターミナル貫通孔（２３）に挿入されて第２保持突起（４１）の先端面が第１ターミナル（１）に当接することにより、第２保持突起（４１）の先端面と第１保持部材（３）との間に第１ターミナル（１）が挟持されることを特徴とする。 In order to achieve the above object, according to the first aspect of the present invention, the first terminal (1) and the second terminal (2) made of conductive metal plates arranged side by side along a predetermined alignment direction (X); The first holding member (3) and the second holding member (4) made of an electrically insulating resin disposed on both sides of the first terminal (1) and the second terminal (2) in the arrangement direction (X),
After the first terminal (1) and the second terminal (2) are clamped by the first holding member (3) and the second holding member (4), the first holding member (3) and the second holding member (4) In which the first holding member (3) extends toward the second holding member (4) along the alignment direction (X). The second holding member (4) includes a holding protrusion (31), and extends toward the first holding member (3) along the alignment direction (X) and does not face the first holding protrusion (31). The first terminal (1) includes a first terminal through hole (13) into which the first holding protrusion (31) is inserted, and the second terminal (2). Includes a second terminal through hole (23) into which the second holding protrusion (41) is inserted. The first holding projection (31) is inserted into the first terminal through hole (13) and the tip surface of the first holding projection (31) abuts on the second terminal (2). The second terminal (2) is sandwiched between the front end surface of the second holding member (4) and the second holding projection (41) is inserted into the second terminal through-hole (23) to form the second holding projection ( The first terminal (1) is sandwiched between the front end surface of the second holding projection (41) and the first holding member (3) by the front end surface of 41) coming into contact with the first terminal (1). It is characterized by that.

これによると、第１保持部材（３）および第２保持部材（４）をそれぞれ成形型により成形した後に、第１ターミナル（１）および第２ターミナル（２）を第１保持部材（３）および第２保持部材（４）により一体的に保持することができるため、成形型の構造を簡素にすることができる。 According to this, after forming the first holding member (3) and the second holding member (4) with the respective molds, the first terminal (1) and the second terminal (2) are connected to the first holding member (3) and Since it can hold | maintain integrally by a 2nd holding member (4), the structure of a shaping | molding die can be simplified.

請求項２に記載の発明のように、第１ターミナル（１）を、並び方向（Ｘ）に対して垂直な第１垂直方向（Ｙ）に沿って複数個配置し、第２ターミナル（２）を、第１垂直方向（Ｙ）に沿って複数個配置し、第１保持突起（３１）と第２保持突起（４１）を、並び方向（Ｘ）および第１垂直方向（Ｙ）に対して垂直な第２垂直方向（Ｚ）にずらして配置することができる。 As in the invention described in claim 2, a plurality of first terminals (1) are arranged along a first vertical direction (Y) perpendicular to the arrangement direction (X), and the second terminal (2). Are arranged along the first vertical direction (Y), and the first holding projections (31) and the second holding projections (41) are arranged with respect to the alignment direction (X) and the first vertical direction (Y). The second vertical direction (Z) can be shifted and arranged.

請求項３に記載の発明では、請求項１または２に記載の電気接続構造体において、結合手段（３４、４４）は、第１保持部材（３）および第２保持部材（４）の一方に形成されて並び方向（Ｘ）に沿って延びる結合用突起（４４）と、他方に形成されて結合用突起（４４）が嵌合される結合用孔（３４）とからなることを特徴とする。 According to a third aspect of the present invention, in the electrical connection structure according to the first or second aspect, the coupling means (34, 44) is provided on one of the first holding member (3) and the second holding member (4). A coupling protrusion (44) that is formed and extends along the alignment direction (X) and a coupling hole (34) that is formed on the other side and into which the coupling protrusion (44) is fitted. .

これによると、結合用突起（４４）と結合用孔（３４）とを嵌合させるだけで第１保持部材（３）と第２保持部材（４）とを結合させることができるため、組み付けが容易である。 According to this, since the first holding member (3) and the second holding member (4) can be coupled simply by fitting the coupling protrusion (44) and the coupling hole (34), the assembly is possible. Easy.

請求項４に記載の発明では、請求項１ないし３のいずれか１つに記載の電気接続構造体において、第１保持突起（３１）および第２保持突起（４１）は、四角柱形状であることを特徴とする。 According to a fourth aspect of the present invention, in the electrical connection structure according to any one of the first to third aspects, the first holding protrusion (31) and the second holding protrusion (41) have a quadrangular prism shape. It is characterized by that.

これによると、第１保持突起（３１）および第２保持突起（４１）を円柱形状にした場合よりも、その断面積を大きくすることができるため、第１保持突起（３１）および第２保持突起（４１）の強度を高くすることができる。 According to this, since the cross-sectional area can be made larger than the case where the first holding protrusion (31) and the second holding protrusion (41) are formed in a columnar shape, the first holding protrusion (31) and the second holding protrusion (31). The strength of the protrusion (41) can be increased.

請求項５に記載の発明では、請求項１ないし４のいずれか１つに記載の電気接続構造体において、第１ターミナル（１）および第２ターミナル（２）に形成された断面Ｕ字状のＵ字部（１６、２６）が、第１保持部材（３）および第２保持部材（４）に形成されたＵ字部挿入溝（３３、４３）に挿入されていることを特徴とする。 According to a fifth aspect of the present invention, in the electrical connection structure according to any one of the first to fourth aspects, the first terminal (1) and the second terminal (2) are formed in a U-shaped cross section. The U-shaped portions (16, 26) are inserted into U-shaped portion insertion grooves (33, 43) formed in the first holding member (3) and the second holding member (4).

これによると、Ｕ字部（１６、２６）を設けることにより、第１ターミナル（１）および第２ターミナル（２）の剛性を高くすることができる。また、Ｕ字部（１６、２６）をＵ字部挿入溝（３３、４３）に挿入することにより、第１ターミナル（１）および第２ターミナル（２）と第１保持部材（３）および第２保持部材（４）とをより確実に位置決め固定することができる。 According to this, the rigidity of the 1st terminal (1) and the 2nd terminal (2) can be made high by providing U character part (16, 26). Further, by inserting the U-shaped portion (16, 26) into the U-shaped portion insertion groove (33, 43), the first terminal (1), the second terminal (2), the first holding member (3), and the first 2 It is possible to more reliably position and fix the holding member (4).

請求項６に記載の発明のように、請求項２に記載の電気接続構造体において、第１ターミナル（１）を、並び方向（Ｘ）に沿って延びる第１ターミナル第１接続片（１１）と第２垂直方向（Ｚ）に沿って延びる第１ターミナル第２接続片（１２）とからなるＬ字状に形成し、第２ターミナル（２）を、並び方向（Ｘ）に沿って延びる第２ターミナル第１接続片（２１）と第２垂直方向（Ｚ）に沿って延びる第２ターミナル第２接続片（２２）とからなるＬ字状に形成し、第１保持部材（３）に、並び方向（Ｘ）に沿って延びて第１ターミナル第１接続片（１１）が挿入される第１保持部材挿入孔（３２）を形成し、第２保持部材（４）に、並び方向（Ｘ）に沿って延びて第２ターミナル第１接続片（２１）が挿入される第２保持部材挿入孔（４２）を形成することができる。 As in the invention described in claim 6, in the electrical connection structure according to claim 2, the first terminal first connection piece (11) extending along the arrangement direction (X) of the first terminal (1). And the first terminal and the second connection piece (12) extending along the second vertical direction (Z), and the second terminal (2) extends in the alignment direction (X). It is formed in an L shape consisting of a two-terminal first connection piece (21) and a second terminal second connection piece (22) extending along the second vertical direction (Z), and the first holding member (3) A first holding member insertion hole (32) into which the first terminal first connection piece (11) is inserted is formed along the arrangement direction (X), and the second holding member (4) is arranged in the arrangement direction (X ) Along the second holding member insertion hole (second terminal first connection piece (21) is inserted ( It is possible to form a 2).

請求項７に記載の発明のように、請求項１ないし６のいずれか１つに記載の電気接続構造体において、第１ターミナル（１）および第２ターミナル（２）は、第１保持部材（３）および第２保持部材（４）から突出した部位で導電性部材（９６、９４１）と接続することができる。 As in the seventh aspect of the invention, in the electrical connection structure according to any one of the first to sixth aspects, the first terminal (1) and the second terminal (2) are provided with a first holding member ( It is possible to connect to the conductive members (96, 941) at portions protruding from 3) and the second holding member (4).

なお、この欄および特許請求の範囲で記載した各手段の括弧内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。 In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

本発明の第１実施形態に係る電気接続構造体の組み付け後の状態を示す正面断面図である。It is front sectional drawing which shows the state after the assembly | attachment of the electrical-connection structure based on 1st Embodiment of this invention. （ａ）は第１実施形態に係る電気接続構造体を分解して示す平面図、（ｂ）は（ａ）のＡ−Ａ線に沿う断面図である。(A) is a top view which decomposes | disassembles and shows the electrical-connection structure which concerns on 1st Embodiment, (b) is sectional drawing which follows the AA line of (a). 本発明の第２実施形態に係る電気接続構造体を用いたインジェクタの要部を示す正面断面図である。It is front sectional drawing which shows the principal part of the injector using the electrical connection structure which concerns on 2nd Embodiment of this invention. 図３の電気接続構造体における第１ターミナルの斜視図である。It is a perspective view of the 1st terminal in the electrical connection structure of FIG. 図３の電気接続構造体における第２ターミナルの斜視図である。It is a perspective view of the 2nd terminal in the electrical connection structure of FIG. 図３の電気接続構造体における保持部材を分解して示す平面図である。It is a top view which decomposes | disassembles and shows the holding member in the electrical-connection structure of FIG. 図３の電気接続構造体の分解斜視図である。FIG. 4 is an exploded perspective view of the electrical connection structure of FIG. 3. 図３の電気接続構造体の組み付け工程を示す図である。It is a figure which shows the assembly | attachment process of the electrical-connection structure of FIG.

以下、本発明の実施形態について図に基づいて説明する。なお、以下の各実施形態相互において、互いに同一もしくは均等である部分には、図中、同一符号を付してある。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

（第１実施形態）
本発明の第１実施形態について説明する。図１は第１実施形態に係る電気接続構造体の組み付け後の状態を示す正面断面図、図２（ａ）は第１実施形態に係る電気接続構造体を分解して示す平面図、図２（ｂ）は図２（ａ）のＡ−Ａ線に沿う断面図である。 (First embodiment)
A first embodiment of the present invention will be described. 1 is a front cross-sectional view showing a state after assembly of the electrical connection structure according to the first embodiment, FIG. 2A is a plan view showing the electrical connection structure according to the first embodiment in an exploded manner, and FIG. (B) is sectional drawing which follows the AA line of Fig.2 (a).

図１、図２に示すように、電気接続構造体は、導電性金属板材をプレス成形した第１ターミナル１および第２ターミナル２と、成形型により成形した電気絶縁性樹脂製の第１保持部材３および第２保持部材４とを備えている。 As shown in FIGS. 1 and 2, the electrical connection structure includes a first terminal 1 and a second terminal 2 formed by press-molding a conductive metal plate, and a first holding member made of an electrically insulating resin formed by a molding die. 3 and the second holding member 4.

第１ターミナル１および第２ターミナル２は、所定の並び方向Ｘに沿って並べて配置され、第１保持部材３および第２保持部材４は、第１ターミナル１および第２ターミナル２の並び方向Ｘ両側に配置されて、第１ターミナル１および第２ターミナル２を挟持するようになっている。 The first terminal 1 and the second terminal 2 are arranged side by side along a predetermined arrangement direction X, and the first holding member 3 and the second holding member 4 are arranged on both sides of the arrangement direction X of the first terminal 1 and the second terminal 2. The first terminal 1 and the second terminal 2 are sandwiched between the first terminal 1 and the second terminal 2.

第１ターミナル１は、並び方向Ｘに対して垂直な第１垂直方向Ｙに沿って３個配置され、第２ターミナル２も、第１垂直方向Ｙに沿って３個配置されている。なお、並び方向Ｘおよび第１垂直方向Ｙに対してともに垂直な方向を、以下、第２垂直方向Ｚという。 Three first terminals 1 are arranged along a first vertical direction Y perpendicular to the arrangement direction X, and three second terminals 2 are also arranged along the first vertical direction Y. A direction perpendicular to both the alignment direction X and the first vertical direction Y is hereinafter referred to as a second vertical direction Z.

第１ターミナル１は、並び方向Ｘに沿って延びる平板状の第１ターミナル第１接続片１１と、第２垂直方向Ｚに沿って延びる平板状の第１ターミナル第２接続片１２とからなる、Ｌ字状に形成されている。第１ターミナル第２接続片１２には、後述する第１保持突起が挿入される四角形の第１ターミナル貫通孔１３が形成されている。 The first terminal 1 includes a flat plate-like first terminal first connection piece 11 extending along the alignment direction X and a flat plate-like first terminal second connection piece 12 extending along the second vertical direction Z. It is formed in an L shape. The first terminal second connection piece 12 is formed with a square first terminal through-hole 13 into which a first holding projection described later is inserted.

第２ターミナル２は、並び方向Ｘに沿って延びる平板状の第２ターミナル第１接続片２１と、第２垂直方向Ｚに沿って延びる平板状の第２ターミナル第２接続片２２とからなる、Ｌ字状に形成されている。第２ターミナル第２接続片２２には、後述する第２保持突起が挿入される四角形の第２ターミナル貫通孔２３が形成されている。そして、第１ターミナル貫通孔１３と第２ターミナル貫通孔２３は、対向しない位置に配置され、より詳細には、第２垂直方向Ｚにずらして配置されている。 The second terminal 2 includes a flat plate-like second terminal first connection piece 21 extending along the alignment direction X and a flat plate-like second terminal second connection piece 22 extending along the second vertical direction Z. It is formed in an L shape. The second terminal second connection piece 22 is formed with a square second terminal through hole 23 into which a second holding projection described later is inserted. And the 1st terminal through-hole 13 and the 2nd terminal through-hole 23 are arrange | positioned in the position which does not oppose, More specifically, it is arrange | positioned by shifting in the 2nd perpendicular direction Z.

第１保持部材３は、並び方向Ｘに沿って第２保持部材４側に向かって延びる四角柱形状の第１保持突起３１を備え、第２保持部材４は、並び方向Ｘに沿って第１保持部材３側に向かって延びる四角柱形状の第２保持突起４１を備えている。そして、第１保持突起３１と第２保持突起４１は、対向しない位置に配置され、より詳細には、第２垂直方向Ｚにずらして配置されている。 The first holding member 3 includes a first holding protrusion 31 having a quadrangular prism shape extending toward the second holding member 4 along the arrangement direction X, and the second holding member 4 includes the first holding protrusion 3 along the arrangement direction X. A square columnar second holding projection 41 extending toward the holding member 3 is provided. The first holding protrusion 31 and the second holding protrusion 41 are disposed at positions that do not face each other, and more specifically, are shifted in the second vertical direction Z.

第１保持部材３は、第１ターミナル第１接続片１１が挿入される第１保持部材挿入孔３２が形成されている。この第１保持部材挿入孔３２は、並び方向Ｘに沿って延びるとともに、貫通している。 The first holding member 3 has a first holding member insertion hole 32 into which the first terminal first connection piece 11 is inserted. The first holding member insertion hole 32 extends along the alignment direction X and passes therethrough.

第２保持部材４は、第２ターミナル第１接続片２１が挿入される第２保持部材挿入孔４２が形成されている。この第２保持部材挿入孔４２は、並び方向Ｘに沿って延びるとともに、貫通している。 The second holding member 4 has a second holding member insertion hole 42 into which the second terminal first connection piece 21 is inserted. The second holding member insertion hole 42 extends along the alignment direction X and passes therethrough.

図１に示すように、第１ターミナル１は、第１ターミナル第１接続片１１の一端および第１ターミナル第２接続片１２の一端が、第１保持部材３から突出している。また、第２ターミナル２は、第２ターミナル第１接続片２１の一端および第２ターミナル第２接続片２２の一端が、第２保持部材４から突出している。そして、第１ターミナル１および第２ターミナル２は、その突出した部位で図示しないリード線やターミナル等の導電性部材と接続されるようになっている。 As shown in FIG. 1, in the first terminal 1, one end of the first terminal first connection piece 11 and one end of the first terminal second connection piece 12 protrude from the first holding member 3. In the second terminal 2, one end of the second terminal first connection piece 21 and one end of the second terminal second connection piece 22 protrude from the second holding member 4. And the 1st terminal 1 and the 2nd terminal 2 are connected with electroconductive members, such as a lead wire and a terminal which are not illustrated, in the projected part.

次に、電気接続構造体の組み付け手順について説明する。前述したように、第１ターミナル１および第２ターミナル２は予めプレス成形され、第１保持部材３および第２保持部材４は予め成形型により成形されている。 Next, the procedure for assembling the electrical connection structure will be described. As described above, the first terminal 1 and the second terminal 2 are previously press-formed, and the first holding member 3 and the second holding member 4 are previously formed by a forming die.

まず、第１保持突起３１を第１ターミナル貫通孔１３に挿入するとともに、第１ターミナル第１接続片１１を第１保持部材挿入孔３２に挿入して、第１ターミナル１と第１保持部材３とを一体化した第１仮組み体を形成する。 First, the first holding protrusion 31 is inserted into the first terminal through hole 13, and the first terminal first connection piece 11 is inserted into the first holding member insertion hole 32, so that the first terminal 1 and the first holding member 3 are inserted. To form a first temporary assembly.

また、第２保持突起４１を第２ターミナル貫通孔２３に挿入するとともに、第２ターミナル第１接続片２１を第２保持部材挿入孔４２に挿入して、第２ターミナル２と第２保持部材４とを一体化した第２仮組み体を形成する。 Further, the second holding projection 41 is inserted into the second terminal through hole 23, and the second terminal first connection piece 21 is inserted into the second holding member insertion hole 42, so that the second terminal 2 and the second holding member 4 are inserted. To form a second temporary assembly.

続いて、第１仮組み体と第２仮組み体とを組み合わせて一体化する。具体的には、図１に示すように、第１保持突起３１の先端面を第２ターミナル第２接続片２２に当接させて、第１保持突起３１の先端面と第２保持部材４との間に第２ターミナル第２接続片２２を挟持する。また、第２保持突起４１の先端面を第１ターミナル第２接続片１２に当接させて、第２保持突起４１の先端面と第１保持部材３との間に第１ターミナル第２接続片１２を挟持する。 Subsequently, the first temporary assembly and the second temporary assembly are combined and integrated. Specifically, as shown in FIG. 1, the front end surface of the first holding projection 31 and the second holding member 4 are brought into contact with the second terminal second connection piece 22 by bringing the front end surface of the first holding projection 31 into contact. 2nd terminal 2nd connection piece 22 is pinched | interposed between. Further, the tip end surface of the second holding projection 41 is brought into contact with the first terminal second connection piece 12, and the first terminal second connection piece is provided between the tip end surface of the second holding projection 41 and the first holding member 3. 12 is pinched.

続いて、第１保持部材３と第２保持部材４とを結合手段により結合して、電気接続構造体が完成する。なお、結合手段としては、接着剤、スナップフィット、二次成形、超音波溶着、熱かしめ等を選択することができる。 Then, the 1st holding member 3 and the 2nd holding member 4 are couple | bonded by a coupling means, and an electrical connection structure is completed. In addition, as a coupling | bonding means, an adhesive agent, snap fit, secondary shaping | molding, ultrasonic welding, heat caulking etc. can be selected.

本実施形態では、第１保持部材３および第２保持部材４をそれぞれ成形型により成形した後に、第１ターミナル１および第２ターミナル２を第１保持部材３および第２保持部材４により一体的に保持することができるため、成形型の構造を簡素にすることができる。 In this embodiment, after the 1st holding member 3 and the 2nd holding member 4 are each shape | molded by the shaping | molding die, the 1st terminal 1 and the 2nd terminal 2 are united by the 1st holding member 3 and the 2nd holding member 4 integrally. Since it can hold | maintain, the structure of a shaping | molding die can be simplified.

また、第１保持突起３１および第２保持突起４１を四角柱形状にしているため、円柱形状にした場合よりもその断面積が大きくなり、第１保持突起３１および第２保持突起４１の強度が高くなる。 Further, since the first holding projection 31 and the second holding projection 41 are formed in a quadrangular prism shape, the cross-sectional area is larger than when the first holding projection 31 and the second holding projection 41 are cylindrical, and the strength of the first holding projection 31 and the second holding projection 41 is increased. Get higher.

（第２実施形態）
本発明の第２実施形態について説明する。図３は第２実施形態に係る電気接続構造体を用いたインジェクタの要部を示す正面断面図、図４は図３の電気接続構造体における第１ターミナル１の斜視図、図５は図３の電気接続構造体における第２ターミナル２の斜視図、図６は図３の電気接続構造体における保持部材を分解して示す平面図、図７（ａ）は図３の電気接続構造体の分解斜視図、図７（ｂ）は図７（ａ）と異なる角度の分解斜視図、図８（ａ）は図３の電気接続構造体の組み付け途中の状態を示す斜視図、図８（ｂ）は電気接続構造体の組み付け完了状態を示す斜視図である。 (Second Embodiment)
A second embodiment of the present invention will be described. FIG. 3 is a front sectional view showing the main part of an injector using the electrical connection structure according to the second embodiment, FIG. 4 is a perspective view of the first terminal 1 in the electrical connection structure of FIG. 3, and FIG. 6 is a perspective view of the second terminal 2 in the electrical connection structure, FIG. 6 is an exploded plan view of the holding member in the electrical connection structure in FIG. 3, and FIG. 7A is an exploded view of the electrical connection structure in FIG. 7B is an exploded perspective view at an angle different from that in FIG. 7A, FIG. 8A is a perspective view showing a state in the middle of assembling the electrical connection structure of FIG. 3, and FIG. 8B. FIG. 5 is a perspective view showing an assembled state of the electrical connection structure.

以下、第１実施形態と異なる部分についてのみ説明する。図３に示すように、本発明の電気接続構造体は、インジェクタに用いることができる。このインジェクタは、コモンレール（図示せず）から供給される高圧燃料をディーゼル内燃機関の気筒内に噴射するものであり、インジェクタボデー９１には、高圧燃料が流通する高圧通路９１１が形成されている。 Only the parts different from the first embodiment will be described below. As shown in FIG. 3, the electrical connection structure of the present invention can be used in an injector. This injector injects high-pressure fuel supplied from a common rail (not shown) into a cylinder of a diesel internal combustion engine, and a high-pressure passage 911 through which high-pressure fuel flows is formed in the injector body 91.

インジェクタボデー９１の一端には、円筒状の第１シールドカバー９２が螺合されており、第１シールドカバー９２の開口端部に円板状の第２シールドカバー９３が圧入固定されている。なお、インジェクタボデー９１、第１シールドカバー９２および第２シールドカバー９３は、電気ノイズを遮断するために、電磁シールド性に富む金属にて形成されている。 A cylindrical first shield cover 92 is screwed to one end of the injector body 91, and a disk-shaped second shield cover 93 is press-fitted and fixed to the opening end of the first shield cover 92. In addition, the injector body 91, the first shield cover 92, and the second shield cover 93 are formed of a metal rich in electromagnetic shielding properties in order to block electrical noise.

インジェクタボデー９１、第１シールドカバー９２および第２シールドカバー９３にて囲まれた空間には、高圧通路９１１の燃料圧力を検出する圧力センサ９４、電気絶縁性に富む樹脂よりなる絶縁部材９５が配置されている。 In a space surrounded by the injector body 91, the first shield cover 92, and the second shield cover 93, a pressure sensor 94 for detecting the fuel pressure in the high-pressure passage 911 and an insulating member 95 made of resin having high electrical insulation are disposed. Has been.

圧力センサ９４は、第１ターミナル１および第２ターミナル２に溶接される複数のセンサ側ターミナル９４１、高圧通路９１１から分岐した分岐通路９１２を介して導かれる燃料の圧力に応じて抵抗値が変化するセンサチップ、およびセンサチップの抵抗値変化に基づいて圧力に応じたセンサ信号を出力する信号処理回路用ＩＣ等を備えている。 The resistance value of the pressure sensor 94 changes according to the pressure of the fuel guided through the plurality of sensor-side terminals 941 welded to the first terminal 1 and the second terminal 2 and the branch passage 912 branched from the high-pressure passage 911. A sensor chip and a signal processing circuit IC that outputs a sensor signal corresponding to pressure based on a change in resistance value of the sensor chip are provided.

そして、圧力センサ９４は、センサ側ターミナル９４１、第１ターミナル１、および第２ターミナル２を介して、複数のリード線９６と電気的に接続されている。これらのリード線９６は、信号処理回路用ＩＣの電源用、接地用、センサ信号出力用等に利用される。なお、センサ側ターミナル９４１およびリード線９６は、本発明の導電性部材に相当する。 The pressure sensor 94 is electrically connected to the plurality of lead wires 96 via the sensor side terminal 941, the first terminal 1, and the second terminal 2. These lead wires 96 are used for power supply, grounding, sensor signal output and the like of the signal processing circuit IC. The sensor side terminal 941 and the lead wire 96 correspond to the conductive member of the present invention.

絶縁部材９５は、第１ターミナル１、第２ターミナル２、リード線９６および防水部材９７が挿入される通し孔９５１が複数形成されている。防水部材９７は、ゴムにて円筒状に形成され、内部にリード線９６が挿入されるとともに外周面が通し孔７１に接している。 The insulating member 95 has a plurality of through holes 951 into which the first terminal 1, the second terminal 2, the lead wire 96 and the waterproof member 97 are inserted. The waterproof member 97 is formed in a cylindrical shape with rubber, and a lead wire 96 is inserted therein, and an outer peripheral surface thereof is in contact with the through hole 71.

図４に示すように、第１ターミナル１は、第１ターミナル第２接続片１２の端部に、かしめられて防水部材９７を保持する第１ターミナル第１保持片１４が形成されている。また、第１ターミナル第２接続片１２には、第１ターミナル第１保持片１４よりも第１ターミナル第１接続片１１側に、かしめられてリード線９６を保持する第１ターミナル第２保持片１５が形成されている。さらに、第１ターミナル第２接続片１２は、第１ターミナル第２保持片１５よりも第１ターミナル第１接続片１１側が、断面Ｕ字状の第１ターミナルＵ字部１６になっている。 As shown in FIG. 4, in the first terminal 1, a first terminal first holding piece 14 that is caulked to hold the waterproof member 97 is formed at the end of the first terminal second connection piece 12. Further, the first terminal second connection piece 12 is caulked closer to the first terminal first connection piece 11 side than the first terminal first holding piece 14, and the first terminal second holding piece holds the lead wire 96. 15 is formed. Furthermore, the 1st terminal 2nd connection piece 12 is the 1st terminal 1st connection piece 11 side from the 1st terminal 2nd holding piece 15 in the 1st terminal U-shaped part 16 of a U-shaped cross section.

図５に示すように、第２ターミナル２は、第２ターミナル第２接続片２２の端部に、かしめられて防水部材９７を保持する第２ターミナル第１保持片２４が形成されている。また、第２ターミナル第２接続片２２には、第２ターミナル第１保持片２４よりも第２ターミナル第１接続片２１側に、かしめられてリード線９６を保持する第２ターミナル第２保持片２５が形成されている。さらに、第２ターミナル第２接続片２２は、第２ターミナル第２保持片２５よりも第２ターミナル第１接続片２１側が、断面Ｕ字状の第２ターミナルＵ字部２６になっている。 As shown in FIG. 5, in the second terminal 2, a second terminal first holding piece 24 that is caulked to hold the waterproof member 97 is formed at the end of the second terminal second connection piece 22. The second terminal second connecting piece 22 is a second terminal second holding piece that is caulked closer to the second terminal first connecting piece 21 than the second terminal first holding piece 24 to hold the lead wire 96. 25 is formed. Further, the second terminal second connection piece 22 is a second terminal U-shaped portion 26 having a U-shaped cross section on the second terminal first connection piece 21 side of the second terminal second holding piece 25.

図６、図７に示すように、第１保持部材３には、第１ターミナルＵ字部１６が挿入されるＵ字部挿入溝３３、および、後述する結合用突起が嵌合される結合用孔３４が形成されている。第２保持部材４には、第２ターミナルＵ字部２６が挿入されるＵ字部挿入溝４３、および、結合用孔３４に嵌合される結合用突起４４が形成されている。この結合用突起４４は、並び方向Ｘに沿って延びている。なお、結合用孔３４および結合用突起４４は、本発明の結合手段を構成する。 As shown in FIGS. 6 and 7, the first holding member 3 has a U-shaped portion insertion groove 33 into which the first terminal U-shaped portion 16 is inserted, and a coupling protrusion into which a coupling protrusion described later is fitted. A hole 34 is formed. The second holding member 4 is formed with a U-shaped portion insertion groove 43 into which the second terminal U-shaped portion 26 is inserted, and a coupling protrusion 44 fitted into the coupling hole 34. The coupling protrusion 44 extends along the alignment direction X. The coupling hole 34 and the coupling projection 44 constitute the coupling means of the present invention.

次に、電気接続構造体の組み付け手順について説明する。なお、第１ターミナル１および第２ターミナル２は予めプレス成形され、第１保持部材３および第２保持部材４は予め成形型により成形されている。 Next, the procedure for assembling the electrical connection structure will be described. In addition, the 1st terminal 1 and the 2nd terminal 2 are press-molded previously, and the 1st holding member 3 and the 2nd holding member 4 are previously shape | molded by the shaping | molding die.

図８（ａ）に示すように、まず、第１保持突起３１を第１ターミナル貫通孔１３に挿入し、第１ターミナル第１接続片１１を第１保持部材挿入孔３２に挿入し、第１ターミナルＵ字部１６を第１保持部材３のＵ字部挿入溝３３に挿入して、第１ターミナル１と第１保持部材３とを一体化した第１仮組み体を形成する。 As shown in FIG. 8A, first, the first holding projection 31 is inserted into the first terminal through-hole 13, the first terminal first connection piece 11 is inserted into the first holding member insertion hole 32, and the first The terminal U-shaped portion 16 is inserted into the U-shaped portion insertion groove 33 of the first holding member 3 to form a first temporary assembly in which the first terminal 1 and the first holding member 3 are integrated.

また、第２保持突起４１を第２ターミナル貫通孔２３に挿入し、第２ターミナル第１接続片２１を第２保持部材挿入孔４２に挿入し、第２ターミナルＵ字部２６を第２保持部材４のＵ字部挿入溝４３に挿入して、第２ターミナル２と第２保持部材４とを一体化した第２仮組み体を形成する。 Further, the second holding projection 41 is inserted into the second terminal through hole 23, the second terminal first connection piece 21 is inserted into the second holding member insertion hole 42, and the second terminal U-shaped portion 26 is inserted into the second holding member. 4 is inserted into the U-shaped portion insertion groove 43 to form a second temporary assembly in which the second terminal 2 and the second holding member 4 are integrated.

続いて、第１実施形態と同様に、第１仮組み体と第２仮組み体とを組み合わせて一体化することにより、電気接続構造体が完成する（図８（ｂ）参照）。このとき、結合用孔３４に結合用突起４４を嵌合させて、第１保持部材３と第２保持部材４とを結合する。 Subsequently, as in the first embodiment, the first temporary assembly and the second temporary assembly are combined and integrated to complete the electrical connection structure (see FIG. 8B). At this time, the first holding member 3 and the second holding member 4 are coupled by fitting the coupling projection 44 into the coupling hole 34.

本実施形態では、第１ターミナルＵ字部１６および第２ターミナルＵ字部２６を設けているため、第１ターミナル１および第２ターミナル２の剛性を高くすることができる。また、第１ターミナルＵ字部１６および第２ターミナルＵ字部２６をＵ字部挿入溝３３、３４に挿入することにより、第１ターミナル１および第２ターミナル２と第１保持部材３および第２保持部材４とをより確実に位置決め固定することができる。さらに、結合用突起４４と結合用孔３４とを嵌合させるだけで第１保持部材３と第２保持部材４とを結合させることができるため、組み付けが容易である。 In this embodiment, since the 1st terminal U-shaped part 16 and the 2nd terminal U-shaped part 26 are provided, the rigidity of the 1st terminal 1 and the 2nd terminal 2 can be made high. Further, by inserting the first terminal U-shaped portion 16 and the second terminal U-shaped portion 26 into the U-shaped portion insertion grooves 33, 34, the first terminal 1, the second terminal 2, the first holding member 3, and the second terminal The holding member 4 can be positioned and fixed more reliably. Further, since the first holding member 3 and the second holding member 4 can be coupled simply by fitting the coupling protrusion 44 and the coupling hole 34, assembly is easy.

なお、本実施形態では、第１保持部材３に結合用孔３４を形成し、第２保持部材４に結合用突起４４を形成したが、第１保持部材３に結合用突起を形成し、第２保持部材４に結合用孔を形成してもよい。 In this embodiment, the coupling hole 34 is formed in the first holding member 3 and the coupling protrusion 44 is formed in the second holding member 4. However, the coupling projection is formed in the first holding member 3, 2 A coupling hole may be formed in the holding member 4.

１第１ターミナル
２第２ターミナル
３第１保持部材
４第２保持部材
１３第１ターミナル貫通孔
２３第２ターミナル貫通孔
３１第１保持突起
３４結合用孔（結合手段）
４１第２保持突起
４４結合用突起（結合手段） DESCRIPTION OF SYMBOLS 1 1st terminal 2 2nd terminal 3 1st holding member 4 2nd holding member 13 1st terminal through-hole 23 2nd terminal through-hole 31 1st holding protrusion 34 Connection hole (connection means)
41 Second holding projection 44 Coupling projection (coupling means)

Claims

The first terminal (1) and the second terminal (2) made of conductive metal plates arranged side by side along a predetermined arrangement direction (X), the first terminal (1) and the second terminal (2) A first holding member (3) and a second holding member (4) made of an electrically insulating resin disposed on both sides of the arrangement direction (X) of
After sandwiching the first terminal (1) and the second terminal (2) by the first holding member (3) and the second holding member (4), the first holding member (3) and the second terminal An electrical connection structure in which the holding member (4) is coupled by the coupling means (34, 44),
The first holding member (3) includes a first holding protrusion (31) extending toward the second holding member (4) along the arrangement direction (X),
The second holding member (4) extends toward the first holding member (3) along the alignment direction (X) and is disposed at a position not facing the first holding protrusion (31). A second holding projection (41);
The first terminal (1) includes a first terminal through hole (13) into which the first holding protrusion (31) is inserted,
The second terminal (2) includes a second terminal through hole (23) into which the second holding projection (41) is inserted,
The first holding protrusion (31) is inserted into the first terminal through hole (13), and the front end surface of the first holding protrusion (31) abuts on the second terminal (2). The second terminal (2) is sandwiched between the front end surface of the holding projection (31) and the second holding member (4),
The second holding projection (41) is inserted into the second terminal through hole (23), and the tip end surface of the second holding projection (41) abuts on the first terminal (1), thereby the second terminal. The electrical connection structure, wherein the first terminal (1) is sandwiched between a front end surface of a holding projection (41) and the first holding member (3).

A plurality of the first terminals (1) are arranged along a first vertical direction (Y) perpendicular to the arrangement direction (X),
A plurality of the second terminals (2) are arranged along the first vertical direction (Y),
The first holding protrusion (31) and the second holding protrusion (41) are arranged so as to be shifted in a second vertical direction (Z) perpendicular to the arrangement direction (X) and the first vertical direction (Y). The electrical connection structure according to claim 1, wherein the electrical connection structure is provided.

The coupling means (34, 44) is formed on one of the first holding member (3) and the second holding member (4) and has a coupling protrusion (44) extending along the alignment direction (X). The electrical connection structure according to claim 1, further comprising a coupling hole formed on the other side and into which the coupling projection is fitted.

The electrical connection structure according to any one of claims 1 to 3, wherein the first holding protrusion (31) and the second holding protrusion (41) have a quadrangular prism shape.

A U-shaped portion (16, 26) having a U-shaped cross section formed in the first terminal (1) and the second terminal (2) is formed by the first holding member (3) and the second holding member (4). 5. The electrical connection structure according to claim 1, wherein the electrical connection structure is inserted into a U-shaped portion insertion groove (33, 43) formed in the structure.

The first terminal (1) includes a first terminal first connection piece (11) extending along the arrangement direction (X) and a first terminal second connection piece (extending along the second vertical direction (Z)). 12) and is formed in an L shape.
The second terminal (2) includes a second terminal first connection piece (21) extending along the arrangement direction (X) and a second terminal second connection piece (extending along the second vertical direction (Z)). 22) and is formed in an L shape.
The first holding member (3) is formed with a first holding member insertion hole (32) extending along the alignment direction (X) and into which the first terminal first connection piece (11) is inserted,
The second holding member (4) is formed with a second holding member insertion hole (42) that extends along the arrangement direction (X) and into which the second terminal first connection piece (21) is inserted. The electrical connection structure according to claim 2.

The first terminal (1) and the second terminal (2) are connected to conductive members (96, 941) at portions protruding from the first holding member (3) and the second holding member (4). The electrical connection structure according to claim 1, wherein: