JP2014179445A

JP2014179445A - In-vehicle electronic control apparatus

Info

Publication number: JP2014179445A
Application number: JP2013052123A
Authority: JP
Inventors: Michihiko Mizuno; 充彦水野; Takayoshi Honda; 隆芳本多
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2013-03-14
Filing date: 2013-03-14
Publication date: 2014-09-25

Abstract

PROBLEM TO BE SOLVED: To provide an in-vehicle electronic control apparatus that facilitates reflow soldering and prevents intrusion of foreign material with a simple structure.SOLUTION: An in-vehicle electronic control apparatus (10) comprises: a substrate (12); a male connector (14) having a male terminal (20) and a holding part (22); and an opening (28), and a case (16) for housing the substrate in its inner space (30). The holding part includes a first fitting part (24) which is fitted into the case while being housed in the inner space. The holding part is narrower than the substrate in width so that the substrate extends outside the holding part. The case includes a second fitting part (34) provided on an inner face (32) and fitted to the first fitting part. The case further includes a receiving part (46) constituting a rear face (22b) of the holding part when the holding part is housed and making contact with both ends of the holding part at least in a width direction. The receiving part is provided with a groove (48) for guiding the substrate into the inner space, and a part of the inner space which is outside the holding part except the groove is closed by the receiving part.

Description

本発明は、基板と、オス端子と該オス端子を保持する保持部を有するオスコネクタと、基板を挿入するための開口部を有し、基板を内部空間に収容する筐体と、を備える車載電子制御装置に関するものである。 The present invention includes a board, a male connector having a male terminal and a holding part for holding the male terminal, and a housing having an opening for inserting the board and accommodating the board in an internal space. The present invention relates to an electronic control device.

従来、例えば特許文献１に示されるように、基板と、オス端子と該オス端子を保持する保持部を有するオスコネクタと、基板を挿入するための開口部を有し、基板を内部空間に収容する筐体と、を備える車載電子制御装置が知られている。 Conventionally, for example, as shown in Patent Document 1, a board, a male connector having a male terminal and a holding part for holding the male terminal, and an opening for inserting the board are accommodated in the internal space. There is known an in-vehicle electronic control device including a housing that performs the above-described operation.

特許文献１では、車載電子制御装置が、開口部を閉塞するカバーをさらに備えている。筐体（ケース）は箱形状をなしており、箱形状の一側面が開放されて開口部とされている。また、オスコネクタ（コネクタ）の保持部の幅が基板よりも狭くされ、幅方向両側において、保持部よりも外側まで基板が配置されている。カバーは、開口部から筐体の内部空間に基板が挿入された状態で、筐体に嵌合されている。カバーには、長方形状の透孔が設けられ、この透孔を介してオスコネクタの一端が外部に露出可能となっている。 In Patent Document 1, the on-vehicle electronic control device further includes a cover that closes the opening. The housing (case) has a box shape, and one side surface of the box shape is opened to be an opening. Moreover, the width | variety of the holding | maintenance part of a male connector (connector) is made narrower than a board | substrate, and the board | substrate is arrange | positioned to the outer side rather than the holding | maintenance part in the width direction both sides. The cover is fitted to the housing in a state where the substrate is inserted into the internal space of the housing from the opening. The cover is provided with a rectangular through hole, and one end of the male connector can be exposed to the outside through the through hole.

特開平１１−２８４３７５号公報JP-A-11-284375

特許文献１に記載のように、オスコネクタの保持部の幅が基板よりも狭くされ、幅方向両側において、保持部よりも外側まで基板が配置された構成とすると、リフロー時に、特別な搬送キャリアを用いることなく、オス端子などのリフローはんだ付けを行うことができる。なお、一般的な搬送キャリアは、基板における幅方向端部からわずかに内側の部分に接触する。したがって、上記構成とすることで、搬送キャリアへのオスコネクタの接触を抑制することができる。 As described in Patent Document 1, when the width of the holding part of the male connector is made narrower than the board and the board is arranged to the outside of the holding part on both sides in the width direction, a special carrier carrier is used during reflow. Reflow soldering such as a male terminal can be performed without using the. In addition, a general conveyance carrier contacts a part slightly inside from the width direction edge part in a board | substrate. Therefore, by setting it as the said structure, the contact of the male connector to a conveyance carrier can be suppressed.

一方、保持部よりも外側まで基板が配置された構成とすると、基板を内部空間に収容した状態で、幅方向において保持部よりも外側に、異物の侵入が可能な空間ができてしまう。これに対し、特許文献１では、カバーを筐体に嵌合し、開口部を閉塞することで、異物の侵入を抑制するようになっている。このため、車載電子制御装置の部品点数が増加してしまう。なお、特許文献１では、カバーにより、挿入方向とは反対の方向への基板の移動を抑制するようにもなっている。 On the other hand, when the substrate is arranged to the outside of the holding portion, a space in which foreign substances can enter is formed outside the holding portion in the width direction in a state where the substrate is accommodated in the internal space. On the other hand, in patent document 1, a cover is fitted to a housing | casing and the opening part is obstruct | occluded and the penetration | invasion of a foreign material is suppressed. For this reason, the number of parts of a vehicle-mounted electronic control apparatus will increase. In Patent Document 1, the movement of the substrate in the direction opposite to the insertion direction is suppressed by the cover.

本発明は上記問題点に鑑み、車載電子制御装置において、リフローはんだ付けを容易とするとともに、簡素な構成で異物侵入を抑制することを目的とする。 In view of the above problems, an object of the present invention is to facilitate reflow soldering in an in-vehicle electronic control device and to suppress foreign matter intrusion with a simple configuration.

上記目的を達成するために、開示された発明のひとつは、
基板（１２）と、
外部メスコネクタ（６０）と基板とを電気的に接続するオス端子（２０）と、該オス端子を保持する保持部（２２）と、を有し、オス端子が基板にはんだ付けされたオスコネクタ（１４）と、
基板を挿入するための開口部（２８）を有し、基板を内部空間（３０）に収容する筐体（１６）と、を備え、
保持部は、オス端子及び基板とともに内部空間に収容され、収容された状態で、筐体と嵌合する第１嵌合部（２４）を有し、
基板の挿入方向と基板の厚み方向の両方向に垂直な幅方向において、保持部は、基板よりも幅が狭くされ、幅方向両側において、保持部よりも外側まで基板が配置されており、
筐体は、内面（３２）に設けられ、保持部の第１嵌合部と嵌合する第２嵌合部（３４）と、オスコネクタ及び基板が内部空間に収容された状態で、保持部における開口部側の面（２２ａ）と反対の裏面（２２ｂ）であって、少なくとも幅方向における両端部にそれぞれ接触する受け部（４６）と、を有し、
受け部には、基板を内部空間の奥側に導くための溝部（４８）が設けられ、
幅方向において保持部よりも外側の内部空間のうち、溝部を除く部分が、受け部によって閉塞されていることを特徴とする。 In order to achieve the above object, one of the disclosed inventions is:
A substrate (12);
A male connector having a male terminal (20) for electrically connecting the external female connector (60) and the board and a holding part (22) for holding the male terminal, wherein the male terminal is soldered to the board (14) and
A housing (16) having an opening (28) for inserting the substrate and accommodating the substrate in the internal space (30),
The holding part is housed in the internal space together with the male terminal and the substrate, and has a first fitting part (24) that fits into the housing in the housed state.
In the width direction perpendicular to both the insertion direction of the substrate and the thickness direction of the substrate, the holding portion is narrower than the substrate, and on both sides in the width direction, the substrate is arranged to the outside of the holding portion,
The housing is provided on the inner surface (32), the second fitting portion (34) fitted to the first fitting portion of the holding portion, and the holding portion in a state where the male connector and the board are accommodated in the internal space. A back surface (22b) opposite to the surface (22a) on the opening side of the substrate, and at least a receiving portion (46) that comes into contact with both end portions in the width direction,
The receiving portion is provided with a groove portion (48) for guiding the substrate to the back side of the internal space.
Of the internal space outside the holding portion in the width direction, a portion excluding the groove portion is closed by the receiving portion.

本発明では、オスコネクタ（１４）の保持部（２２）より、基板（１２）の方が幅が広いので、特別な搬送キャリアを用いなくてもリフローを行うことができる。 In the present invention, since the width of the substrate (12) is wider than the holding portion (22) of the male connector (14), reflow can be performed without using a special carrier.

また、保持部（２２）が内部空間（３０）に収容された状態で、受け部（４６）が異物に対するカバーとして機能する。したがって、カバーを設けなくとも、基板（１２）が配置された内部空間（３０）への異物の侵入を抑制することができる。 In addition, the receiving part (46) functions as a cover for the foreign matter in a state where the holding part (22) is accommodated in the internal space (30). Therefore, even if a cover is not provided, entry of foreign matter into the internal space (30) in which the substrate (12) is disposed can be suppressed.

以上により、車載電子制御装置において、リフローはんだ付けを容易とするとともに、簡素な構成で異物侵入を抑制することができる。 As described above, in the on-vehicle electronic control device, reflow soldering can be facilitated, and entry of foreign matter can be suppressed with a simple configuration.

なお、保持部（２２）が筐体（１６）の内部空間（３０）に収容された状態で、保持部（２２）の第１嵌合部（２４）と、筐体（１６）の内面（３２）に設けた第２嵌合部（３４）が嵌合する。したがって、カバーを設けなくとも、第１嵌合部（２４）と第２嵌合部（３４）の嵌合により、開口部（２８）側への基板（１２）の移動を抑制することができる。 The first fitting portion (24) of the holding portion (22) and the inner surface (16) of the housing (16) in a state where the holding portion (22) is accommodated in the internal space (30) of the housing (16). The second fitting portion (34) provided in 32) is fitted. Therefore, the movement of the substrate (12) toward the opening (28) can be suppressed by fitting the first fitting portion (24) and the second fitting portion (34) without providing a cover. .

また、外部メスコネクタ（６０）の嵌合時に、受け部（４６）にて保持部（２２）を支持することができる。これにより、保持部（２２）が奥側に押されてオス端子（２０）のはんだ付け部に応力が作用するのを抑制することができる。すなわち、オス端子（２０）の接続信頼性を向上することもできる。 Further, the holding portion (22) can be supported by the receiving portion (46) when the external female connector (60) is fitted. Thereby, it can suppress that a holding | maintenance part (22) is pushed back and stress acts on the soldering part of a male terminal (20). That is, the connection reliability of the male terminal (20) can be improved.

本実施形態に係る車載電子制御装置の概略構成を示す平面図である。It is a top view which shows schematic structure of the vehicle-mounted electronic control apparatus which concerns on this embodiment. 図１のII-II線に沿う断面図である。It is sectional drawing which follows the II-II line of FIG. 図１のIII-III線に沿う断面図である。It is sectional drawing which follows the III-III line of FIG. 図１のIV-IV線に沿う断面図である。It is sectional drawing which follows the IV-IV line of FIG. オスコネクタのうち、保持部の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of a holding | maintenance part among male connectors. 保持部と基板の幅の関係を示す平面図である。It is a top view which shows the relationship between a holding | maintenance part and the width | variety of a board | substrate. 筐体の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of a housing | casing. 筐体の概略構成を示す斜視図である。It is a perspective view which shows schematic structure of a housing | casing. 筐体の概略構成を示す平面図である。It is a top view which shows schematic structure of a housing | casing. 第１嵌合部と第２嵌合部の嵌合構造を示す図である。It is a figure which shows the fitting structure of a 1st fitting part and a 2nd fitting part. 図１に示す車載電子制御装置に外部メスコネクタを嵌合させた状態を示す斜視図である。It is a perspective view which shows the state which made the external female connector fit to the vehicle-mounted electronic control apparatus shown in FIG. 図１１のXII-XII線に沿う断面図であり、図２に対応している。It is sectional drawing which follows the XII-XII line | wire of FIG. 11, and respond | corresponds to FIG.

以下、本発明の実施の形態を、図面を参照して説明する。なお、以下に示す各図において、共通乃至関連する要素には同一の符号を付与するものとする。また、以下においては、基板の厚み方向を、単に厚み方向と示す。また、筐体に対する基板の挿入方向を、単に挿入方向と示す。また、厚み方向と挿入方向の両方向に垂直な方向を、幅方向と示す。厚み方向、挿入方向、幅方向は、互いに直交する関係にある。また、特に断りのない限り、挿入方向と幅方向により規定される面に沿う形状を平面形状とする。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings shown below, common or related elements are given the same reference numerals. In the following, the thickness direction of the substrate is simply referred to as the thickness direction. Further, the insertion direction of the substrate with respect to the housing is simply referred to as the insertion direction. A direction perpendicular to both the thickness direction and the insertion direction is referred to as a width direction. The thickness direction, the insertion direction, and the width direction are orthogonal to each other. In addition, unless otherwise specified, the shape along the plane defined by the insertion direction and the width direction is a planar shape.

まず、図１〜図１０を用いて、車載電子制御装置１０を説明する。図１〜図４に示すように、車載電子制御装置１０は、基板１２と、オスコネクタ１４と、筐体１６と、を備えている。この車載電子制御装置１０は、例えば車両のエンジンを制御する、防水型の電子制御装置（ＥＣＵ）として構成されている。 First, the in-vehicle electronic control device 10 will be described with reference to FIGS. As shown in FIGS. 1 to 4, the on-vehicle electronic control device 10 includes a substrate 12, a male connector 14, and a housing 16. The on-vehicle electronic control device 10 is configured as a waterproof electronic control device (ECU) that controls a vehicle engine, for example.

基板１２は、樹脂などの絶縁材料からなる基材に、銅箔などからなる図示しない配線を配置してなる。本実施形態では、図６に示すように、基板１２が平面矩形の平板状をなしている。そして、配線は、基板１２のうち、厚み方向における一方の面である一面１２ａ及び一面１２ａと反対の裏面１２ｂの両面に配置されている。また、基材の内部に配置されている。 The substrate 12 is formed by arranging wiring (not shown) made of copper foil or the like on a base material made of an insulating material such as resin. In the present embodiment, as shown in FIG. 6, the substrate 12 has a flat rectangular plate shape. And the wiring is arrange | positioned on both surfaces of the back surface 12b opposite to the one surface 12a which is one surface in the thickness direction among the board | substrates 12, and the one surface 12a. Moreover, it arrange | positions inside the base material.

また、図２に示すように、基板１２の一面１２ａ及び裏面１２ｂの両面に電子部品１８が配置され、この電子部品１８は、上記した配線のランドにリフローはんだ付けされている。このように、基板１２には、電子部品１８と配線により、回路が構成されている。なお、図３及び図４では、便宜上、電子部品１８の図示を省略している。 As shown in FIG. 2, electronic components 18 are arranged on both the first surface 12a and the rear surface 12b of the substrate 12, and the electronic components 18 are reflow soldered to the above-described wiring lands. Thus, the circuit is constituted by the electronic component 18 and the wiring on the substrate 12. 3 and 4, the illustration of the electronic component 18 is omitted for convenience.

配線の配置は、上記例に限定されるものではない。例えば一面１２ａのみに配置された構成を採用することもできる。すなわち、基板１２の一面１２ａのみに電子部品１８が配置された構成を採用することもできる。 The arrangement of the wiring is not limited to the above example. For example, the structure arrange | positioned only at the one surface 12a is also employable. That is, a configuration in which the electronic component 18 is disposed only on the one surface 12a of the substrate 12 may be employed.

また、基板１２は、オスコネクタ１４の後述するオス端子２０が挿通される貫通孔１２ｃを有しており、オス端子２０は、貫通孔１２ｃの壁面に設けられた図示しないランドに、例えばリフローにより、はんだ付けされている。具体的には、一面１２ａにおけるランド付近にはんだペーストを塗布し、次いでオス端子２０を貫通孔１２ｃに挿入し、リフローを行うことで、オス端子２０が対応するランドにはんだ付けされている。なお、このようなリフローはんだ付けに代えて、フローはんだ付けを採用することもできる。 Moreover, the board | substrate 12 has the through-hole 12c by which the male terminal 20 mentioned later of the male connector 14 is penetrated, and the male terminal 20 is carried out to the land which is not shown provided in the wall surface of the through-hole 12c, for example by reflow Soldered. Specifically, the male terminal 20 is soldered to the corresponding land by applying a solder paste in the vicinity of the land on the one surface 12a, then inserting the male terminal 20 into the through hole 12c, and performing reflow. Instead of such reflow soldering, flow soldering can be employed.

オスコネクタ１４は、導電材料を用いて形成されており、基板１２に構成された回路と、外部メスコネクタ６０のメス端子６２とを電気的に接続する複数のオス端子２０と、樹脂材料を用いて形成され、各オス端子２０を保持する保持部２２と、を有している。また、保持部２２は、筐体１６と嵌合する第１嵌合部２４を有している。 The male connector 14 is formed using a conductive material, and a plurality of male terminals 20 that electrically connect a circuit configured on the substrate 12 and the female terminals 62 of the external female connector 60, and a resin material. And a holding portion 22 that holds each male terminal 20. The holding part 22 has a first fitting part 24 that fits with the housing 16.

各オス端子２０は、図２に示すように、挿入方向に沿って延設された部分と、厚み方向に沿って延設された部分を有する略Ｌ字状をなしている。そして、オス端子２０のうち、挿入方向に沿って延設された部分は、保持部２２を厚み方向に貫通する形で、保持部２２に保持されている。一方、オス端子２０のうち、厚み方向に沿って延設された部分は、基板１２の裏面１２ｂ側に突出するように、基板１２を厚み方向に貫通して設けられている。 As shown in FIG. 2, each male terminal 20 has a substantially L shape having a portion extending along the insertion direction and a portion extending along the thickness direction. And the part extended along the insertion direction among the male terminals 20 is hold | maintained at the holding | maintenance part 22 in the form which penetrates the holding | maintenance part 22 in the thickness direction. On the other hand, a portion of the male terminal 20 that extends along the thickness direction is provided through the substrate 12 in the thickness direction so as to protrude toward the back surface 12b of the substrate 12.

保持部２２は、図５に示すように、挿入方向を自身の厚み方向とする平板状とされ、幅方向及び厚み方向により規定される平面形状が、幅方向に長い略長方形をなしている。また、幅方向において、図６に示すように、保持部２２の幅は基板１２よりも狭くされており、保持部２２を跨ぐように基板１２が位置している。すなわち、幅方向両側において、保持部２２よりも外側まで基板１２が位置している。また、挿入方向において、図２に示すように、保持部２２は、基板１２の開口部２８側の端面よりも開口部２８に近い位置に配置されるとともに、厚み方向において、基板１２を跨いで配置されている。 As shown in FIG. 5, the holding portion 22 has a flat plate shape whose insertion direction is its own thickness direction, and the planar shape defined by the width direction and the thickness direction is a substantially rectangular shape that is long in the width direction. In the width direction, as shown in FIG. 6, the width of the holding portion 22 is narrower than that of the substrate 12, and the substrate 12 is positioned so as to straddle the holding portion 22. That is, the substrate 12 is positioned to the outside of the holding portion 22 on both sides in the width direction. Further, in the insertion direction, as shown in FIG. 2, the holding portion 22 is disposed at a position closer to the opening portion 28 than the end face on the opening portion 28 side of the substrate 12, and straddles the substrate 12 in the thickness direction. Has been placed.

このように構成される保持部２２は、オス端子２０とともに筐体１６の内部空間３０に収容される。保持部２２は、筐体１６の開口部２８側の露出面２２ａ、露出面２２ａと反対の裏面２２ｂ、厚み方向における一面１２ａ側の上面２２ｃ、上面２２ｃと反対の下面２２ｄ、幅方向の端面２２ｅ，２２ｆを有している。そして、厚み方向において筐体１６と対向する上面２２ｃ及び下面２２ｄに、凹状の第１嵌合部２４を有している。この第１嵌合部２４は、図５に示すように、一端が露出面２２ａに開口し、多端が裏面２２ｂに露出するように、挿入方向に沿って延設されている。また、第１嵌合部２４は、挿入方向全長において、ほぼ一定の深さ及びほぼ一定の幅を有している。 The holding part 22 configured in this way is housed in the internal space 30 of the housing 16 together with the male terminal 20. The holding portion 22 includes an exposed surface 22a on the opening 28 side of the housing 16, a back surface 22b opposite to the exposed surface 22a, an upper surface 22c on the one surface 12a side in the thickness direction, a lower surface 22d opposite to the upper surface 22c, and an end surface 22e in the width direction. , 22f. A concave first fitting portion 24 is provided on the upper surface 22c and the lower surface 22d facing the housing 16 in the thickness direction. As shown in FIG. 5, the first fitting portion 24 extends along the insertion direction so that one end is open to the exposed surface 22 a and the other end is exposed to the back surface 22 b. Further, the first fitting portion 24 has a substantially constant depth and a substantially constant width over the entire length in the insertion direction.

本実施形態において、上面２２ｃ側の第１嵌合部２４は、上面２２ｃの他の部分に対して凹んで設けられており、下面２２ｄ側の第１嵌合部２４は、凸部の間の凹み領域として設けられている。また、図１及び図５に示すように、上面２２ｃ側の第１嵌合部２４と下面２２ｄ側の第１嵌合部２４とで、幅方向の位置がほぼ一致するように設けられている。また、３組の第１嵌合部２４が設けられており、幅方向において、保持部２２の中心付近と、中心と端面２２ｅとの間、中心と端面２２ｆとの間に、それぞれ設けられている。 In the present embodiment, the first fitting portion 24 on the upper surface 22c side is provided to be recessed with respect to other portions of the upper surface 22c, and the first fitting portion 24 on the lower surface 22d side is provided between the convex portions. It is provided as a recessed area. Further, as shown in FIGS. 1 and 5, the first fitting portion 24 on the upper surface 22c side and the first fitting portion 24 on the lower surface 22d side are provided so that the positions in the width direction substantially coincide with each other. . Further, three sets of first fitting portions 24 are provided, and are provided in the width direction near the center of the holding portion 22, between the center and the end surface 22e, and between the center and the end surface 22f, respectively. Yes.

また、保持部２２は、幅方向における両端に、高背部２６を有している。この高背部２６は、図１及び図５に示すように、保持部２２のうち、高背部２６により挟まれた部分（低背部）よりも厚み方向の長さが長く、低背部に対して厚み方向両側に突出している。 Moreover, the holding part 22 has a high-back part 26 at both ends in the width direction. As shown in FIGS. 1 and 5, the high-back portion 26 is longer in the thickness direction than the portion (low-back portion) sandwiched between the high-back portions 26 of the holding portion 22, and is thicker than the low-back portion. Protrusively on both sides.

なお、図５に示す符号２２ｇは、オス端子２０が挿通される貫通孔を示している。オス端子２２が、保持部２２の貫通孔２２ｇに圧入されている。圧入以外も、例えばインサート成形による保持を採用することもできる。 In addition, the code | symbol 22g shown in FIG. 5 has shown the through-hole by which the male terminal 20 is penetrated. The male terminal 22 is press-fitted into the through hole 22 g of the holding portion 22. In addition to press-fitting, for example, holding by insert molding can be employed.

筐体１６は、複数の部材を組み付けて構成される筐体ではなく、樹脂材料を用いて形成された１つの部材からなり、開口された袋形状をなしている。そして、オスコネクタ１４の実装された基板１２を挿入するための開口部２８と、基板１２及びオスコネクタ１４を収容する内部空間３０と、を有している。また、筐体１６は、その内面３２に、オスコネクタ１４の第１嵌合部２４と嵌合する第２嵌合部３４を有している。さらに、筐体１６は、外面３６のうち、開口部２８の周囲に位置する開口縁部を除く部分であって開口部２８の周辺に、外部メスコネクタ６０と嵌合する第３嵌合部３８を有している。 The casing 16 is not a casing configured by assembling a plurality of members, but is formed of one member formed using a resin material, and has an open bag shape. And it has the opening part 28 for inserting the board | substrate 12 with which the male connector 14 was mounted, and the internal space 30 in which the board | substrate 12 and the male connector 14 are accommodated. Moreover, the housing | casing 16 has the 2nd fitting part 34 fitted to the 1st fitting part 24 of the male connector 14 in the inner surface 32. As shown in FIG. Further, the housing 16 is a portion of the outer surface 36 excluding the opening edge located around the opening 28 and around the opening 28, and a third fitting portion 38 that fits the external female connector 60. have.

本実施形態では、筐体１６が、壁部４０の１つに開口部２８を有する箱状をなしている。そして、第２嵌合部３４と第３嵌合部３８は、同一の壁部４０における内面３２と外面３６にそれぞれ設けられている。詳しくは、筐体１６が、壁部４０として、保持部２２の上面２２ｃと対向する第１壁部４０ａと、下面２２ｄと対向する第２壁部４０ｂと、開口部２８とされた壁部の反対に位置する底壁部４０ｃと、幅方向の側壁部４０ｄ，４０ｅと、を有している。開口部２８は、上記した保持部２２同様、厚み方向に短く、幅方向に長い長方形をなしており、内部空間３０の挿入方向に直交する断面も、同様の長方形となっている。そして、壁部４０のうち、第１壁部４０ａと第２壁部４０ｂに、第２嵌合部３４と第３嵌合部３８が、それぞれ設けられている。 In the present embodiment, the housing 16 has a box shape having an opening 28 in one of the wall portions 40. And the 2nd fitting part 34 and the 3rd fitting part 38 are provided in the inner surface 32 and the outer surface 36 in the same wall part 40, respectively. Specifically, the housing 16 includes, as the wall portion 40, a first wall portion 40 a that faces the upper surface 22 c of the holding portion 22, a second wall portion 40 b that faces the lower surface 22 d, and an opening portion 28. It has the bottom wall part 40c located in the opposite direction, and the side wall parts 40d and 40e of the width direction. The opening 28 has a rectangular shape that is short in the thickness direction and long in the width direction, similar to the holding portion 22 described above, and the cross section perpendicular to the insertion direction of the internal space 30 is also the same rectangle. And the 2nd fitting part 34 and the 3rd fitting part 38 are provided in the 1st wall part 40a and the 2nd wall part 40b among the wall parts 40, respectively.

第２嵌合部３４は、凹状に設けられた第１嵌合部２４と嵌合すべく、図１，図３，図７〜図９に示すように、凸状をなしており、第１嵌合部２４と同数設けられている。また、図３，図７、図８に示すように、凸状をなす第２嵌合部３４は、開口部２８から少し底壁部４０ｃ側を始点として、挿入方向に延設されている。また、第２嵌合部３４は、挿入方向全長において、ほぼ一定の深さを有している。また、第２嵌合部３４は、図１０に示すように、挿入方向において、開口部２８から遠ざかるほど幅が広くなっている。本実施形態では、第２嵌合部３４の開口部２８側の端部での幅は、幅一定の第１嵌合部２４の幅Ｗ１よりも狭くなっている。一方、第２嵌合部３４における底壁部４０ｃ側の後端部分での幅Ｗ２は、上記した幅Ｗ１よりも若干広くなっている。これにより、第１嵌合部２４を第２嵌合部３４とを、圧入によってしっかり嵌め合うことができる。なお、図１０は、第１壁部４０ａ側の第２嵌合部３４を示しているが、第２壁部４０ｂ側の第２嵌合部３４も同様の形状を有している。 The second fitting portion 34 has a convex shape as shown in FIGS. 1, 3, and 7 to 9 so as to be fitted to the first fitting portion 24 provided in a concave shape. The same number as the fitting part 24 is provided. As shown in FIGS. 3, 7, and 8, the convex second fitting portion 34 is extended from the opening 28 in the insertion direction with the bottom wall 40 c as a starting point. Further, the second fitting portion 34 has a substantially constant depth over the entire length in the insertion direction. Further, as shown in FIG. 10, the second fitting portion 34 becomes wider as it gets farther from the opening 28 in the insertion direction. In the present embodiment, the width of the end of the second fitting portion 34 on the opening 28 side is narrower than the width W1 of the first fitting portion 24 having a constant width. On the other hand, the width W2 at the rear end portion of the second fitting portion 34 on the bottom wall portion 40c side is slightly wider than the width W1 described above. Thereby, the 1st fitting part 24 and the 2nd fitting part 34 can be firmly fitted by press-fitting. 10 shows the second fitting portion 34 on the first wall portion 40a side, the second fitting portion 34 on the second wall portion 40b side has the same shape.

なお、本実施形態では、図７及び図８に示すように、筐体１６の開口部２８周辺が部分的に厚肉部４２となっており、これにより、内面３２に段差が設けられている。そして、第１壁部４０ａ側の第２嵌合部３４は、図７に示すように、厚肉部４２上に設けられている。一方、第２壁部４０ｂ側の第２嵌合部３４は、図８に示すように、厚肉部４２ではない部分に設けられ、厚肉部４２とほぼ面一となっている。詳しくは、厚肉部４２のうち、幅方向において第２嵌合部３４に隣接する部分を除去することで、除去部分である薄肉部に挟まれた厚肉部４２の部分を、第２嵌合部３４としている。 In this embodiment, as shown in FIGS. 7 and 8, the periphery of the opening 28 of the housing 16 is partially a thick portion 42, thereby providing a step on the inner surface 32. . And the 2nd fitting part 34 by the side of the 1st wall part 40a is provided on the thick part 42, as shown in FIG. On the other hand, as shown in FIG. 8, the second fitting portion 34 on the second wall portion 40 b side is provided in a portion that is not the thick portion 42 and is substantially flush with the thick portion 42. Specifically, by removing a portion of the thick portion 42 that is adjacent to the second fitting portion 34 in the width direction, the portion of the thick portion 42 sandwiched between the thin portions that are the removed portions is second fitted. The joint part 34 is used.

第３嵌合部３８は、図１，図２，図７〜図９に示すように、凸状をなしている。また、図２，図７、図８に示すように、凸状をなす第３嵌合部３８は、第１壁部４０ａ及び第２壁部４０ｂにおいて、開口部２８の周辺に設けられている。本実施形態では、第１壁部４０ａ側の第３嵌合部３８と第２壁部４０ｂ側の第３嵌合部３８とで、幅方向の位置がほぼ一致するように設けられている。また、３組の第３嵌合部３８が、幅方向において互いに離間して設けられている。詳しくは、側壁部４０ｄ側の第３嵌合部３８と、真ん中の第３嵌合部３８との間に、第２嵌合部３４が２つ（２組）配置され、側壁部４０ｅ側の第３嵌合部３８と、真ん中の第３嵌合部３８との間に、第２嵌合部３４が１つ（１組）配置されている。 The third fitting portion 38 has a convex shape as shown in FIGS. 1, 2, and 7 to 9. As shown in FIGS. 2, 7, and 8, the convex third fitting portion 38 is provided around the opening 28 in the first wall portion 40a and the second wall portion 40b. . In the present embodiment, the third fitting portion 38 on the first wall portion 40a side and the third fitting portion 38 on the second wall portion 40b side are provided so that the positions in the width direction substantially coincide with each other. Further, three sets of third fitting portions 38 are provided to be separated from each other in the width direction. Specifically, two (two sets) of second fitting portions 34 are arranged between the third fitting portion 38 on the side wall portion 40d side and the third fitting portion 38 in the middle, and on the side wall portion 40e side. One (one set) of the second fitting portions 34 is disposed between the third fitting portion 38 and the third fitting portion 38 in the middle.

さらに筐体１６は、基板押さえ部４４と、受け部４６と、溝部４８と、を有している。これらは、筐体１６の内面３２に設けられている。 Furthermore, the housing 16 has a substrate pressing portion 44, a receiving portion 46, and a groove portion 48. These are provided on the inner surface 32 of the housing 16.

基板押さえ部４４は、図３及び図９に示すように、袋形状をなす筐体１６の内面３２において、底面に形成されている。具体的には、基板押さえ部４４が、底壁部４０ｃの内面３２から開口部２８側に突出して設けられている。また、幅方向において、底壁部４０ｃの内面３２の中心付近に設けられている。この基板押さえ部４４は、筐体１６の内部空間３０に基板１２が収容された状態で、基板１２の一面１２ａに接触し、後述する溝部４８の壁面との間で、基板１２を厚み方向に挟持するようになっている。 As shown in FIGS. 3 and 9, the substrate pressing portion 44 is formed on the bottom surface of the inner surface 32 of the bag-shaped housing 16. Specifically, the substrate pressing portion 44 is provided so as to protrude from the inner surface 32 of the bottom wall portion 40c to the opening portion 28 side. Further, it is provided near the center of the inner surface 32 of the bottom wall portion 40c in the width direction. The substrate pressing portion 44 is in contact with the one surface 12a of the substrate 12 in a state where the substrate 12 is accommodated in the internal space 30 of the housing 16, and the substrate 12 is disposed in the thickness direction between the wall surface of the groove portion 48 described later. It is designed to be pinched.

受け部４６は、図１，図７〜図９に示すように、オスコネクタ１４の実装された基板１２が内部空間３０に収容された状態で、保持部２２の裏面２２ｂであって、少なくとも幅方向における両端部にそれぞれ接触するように設けられている。また、幅方向において保持部２２よりも外側の内部空間３０のうち、溝部４８を除く部分が、受け部４６によって閉塞されるように設けられている。すなわち、受け部４６は、保持部２２の裏面２２ｂに接触して、保持部２２よりも幅方向外側の空間を閉塞するように設けられている。 As shown in FIGS. 1 and 7 to 9, the receiving portion 46 is the back surface 22 b of the holding portion 22 in a state where the board 12 on which the male connector 14 is mounted is accommodated in the internal space 30, and has at least a width. It is provided so as to be in contact with both ends in the direction. Further, in the inner space 30 outside the holding portion 22 in the width direction, a portion excluding the groove portion 48 is provided to be closed by the receiving portion 46. That is, the receiving portion 46 is provided so as to contact the back surface 22 b of the holding portion 22 and close the space on the outer side in the width direction than the holding portion 22.

このような受け部４６は、第１嵌合部２４と第２嵌合部３４とが嵌合した状態で、保持部２２の裏面２２ｂに接触する支持面４６ａと、保持部２２よりも幅方向外側の空間を閉塞するように設けられた閉塞面４６ｂと、を有している。さらに本実施形態では、裏面２２ｂが支持面４６ａに接触した状態で、保持部２２の端面２２ｅ，２２ｆと対向する対向面４６ｃを有している。このように、受け部４６は、支持面４６ａと閉塞面４６ｂが、対向面４６ｃにより連結された段差形状をなしている。 Such a receiving portion 46 has a support surface 46 a that contacts the back surface 22 b of the holding portion 22 in the state in which the first fitting portion 24 and the second fitting portion 34 are fitted, and a width direction more than the holding portion 22. And a closing surface 46b provided to close the outer space. Furthermore, in this embodiment, it has the opposing surface 46c which opposes the end surfaces 22e and 22f of the holding | maintenance part 22 in the state which the back surface 22b contacted the support surface 46a. As described above, the receiving portion 46 has a stepped shape in which the support surface 46a and the closing surface 46b are connected by the facing surface 46c.

また、図７に示すように、第１壁部４０ａの内面３２にも、支持面４６ａを有する受け部４６が、幅方向に沿って設けられており、第１壁部４０ａに設けられた受け部４６の支持面４６ａにより、幅方向両側の受け部４６の支持面４６ａが連結されている。そして、全ての支持面４６ａは、ほぼ面一となっている。なお、図７及び図１０に示すように、第１壁部４０ａに設けられた第２嵌合部３４の端部が、挿入方向において支持面４６ａと一致している。 Further, as shown in FIG. 7, a receiving portion 46 having a support surface 46a is also provided along the width direction on the inner surface 32 of the first wall portion 40a, and the receiving portion provided on the first wall portion 40a. The support surfaces 46 a of the receiving portions 46 on both sides in the width direction are connected to each other by the support surfaces 46 a of the portions 46. All the support surfaces 46a are substantially flush. As shown in FIGS. 7 and 10, the end of the second fitting portion 34 provided on the first wall portion 40a coincides with the support surface 46a in the insertion direction.

溝部４８は、基板１２を内部空間３０の奥側に導くためのガイド機能を果たすものであり、基板１２の一面１２ａ、裏面１２ｂ、及び幅方向における端面と対向するコの字状の壁面を有している。この溝部４８は、筐体１６において、受け部４６にも設けられており、挿入方向において、受け部４６から底壁部４０ｃに向けて延設されている。具体的には、図１，図８，図９に示すように、受け部４６のうち、厚み方向において基板１２が配置される部分に、溝部４８が設けられている。 The groove portion 48 serves as a guide for guiding the substrate 12 to the back side of the internal space 30, and has a U-shaped wall surface facing the one surface 12 a, the back surface 12 b, and the end surface in the width direction of the substrate 12. doing. The groove portion 48 is also provided in the receiving portion 46 in the housing 16 and extends from the receiving portion 46 toward the bottom wall portion 40c in the insertion direction. Specifically, as shown in FIGS. 1, 8, and 9, a groove portion 48 is provided in a portion of the receiving portion 46 where the substrate 12 is disposed in the thickness direction.

なお、本実施形態では、図８に示すように、筐体１６における受け部４６よりも底壁部４０ｃの部分の厚み（第１壁部４０ａと第２壁部４０ｂの外面間の距離）が、受け部４６より開口部２８側の部分の厚みよりも薄くなっている。また、図８に示すように、筐体１６の幅（側壁部４０ｄ，４０ｅの外面間の距離）は、厚み方向において溝部４８の設けられた部分（基板１２をガイドする部分）において、挿入方向でほぼ一定となっている。一方、溝部４８の設けられた部分よりも第１壁部４０ａ側の部分の幅は、受け部４６より開口部２８側において、溝部４８の設けられた部分とほぼ同、且つ、挿入方向でほぼ一定とされ、受け部４６よりも底壁部４０ｃ側において、受け部４６より開口部２８側よりも狭くなっている。このように、筐体１６は、挿入方向全長で一定の形状ではなく、保持部２２よりも底壁部４０ｃ側において、厚み及び幅が縮小されている。 In this embodiment, as shown in FIG. 8, the thickness of the bottom wall portion 40c (the distance between the outer surfaces of the first wall portion 40a and the second wall portion 40b) is larger than the receiving portion 46 in the housing 16. The thickness of the portion closer to the opening 28 than the receiving portion 46 is smaller. Further, as shown in FIG. 8, the width of the casing 16 (the distance between the outer surfaces of the side wall portions 40d and 40e) is the insertion direction in the portion where the groove portion 48 is provided in the thickness direction (the portion that guides the substrate 12). It is almost constant. On the other hand, the width of the portion closer to the first wall portion 40a than the portion where the groove portion 48 is provided is substantially the same as the portion where the groove portion 48 is provided on the opening 28 side of the receiving portion 46, and is substantially the same in the insertion direction. It is constant and is narrower on the bottom wall 40 c side than the receiving portion 46 and narrower than the opening portion 28 side on the receiving portion 46. Thus, the casing 16 is not a fixed shape in the entire length in the insertion direction, and the thickness and the width are reduced on the bottom wall portion 40c side with respect to the holding portion 22.

次に、図１１及び図１２を用いて、外部メスコネクタ６０、及び、車載電子機器１０のオスコネクタ１４に外部メスコネクタ６０が嵌合された構造を説明する。なお、外部メスコネクタ６０は、従来周知のレバー式コネクタであるため、詳細な説明は割愛する。 Next, a structure in which the external female connector 60 and the external female connector 60 are fitted to the male connector 14 of the in-vehicle electronic device 10 will be described with reference to FIGS. 11 and 12. The external female connector 60 is a conventionally well-known lever-type connector, and thus a detailed description is omitted.

外部メスコネクタ６０は、導電材料からなり、オス端子２０と電気的に接続されるメス端子６２と、ハウジング６４と、を備えている。また、ハウジング６４は、メス端子６２を保持する基部６６と、ワイヤカバー６８と、スライダ７０と、レバー７２と、を有している。 The external female connector 60 is made of a conductive material and includes a female terminal 62 that is electrically connected to the male terminal 20 and a housing 64. The housing 64 has a base 66 that holds the female terminal 62, a wire cover 68, a slider 70, and a lever 72.

基部６６は、挿入方向に貫通し、メス端子６２が挿入・配置される端子収容孔７４を有している。基部６６のうち、端子収容孔７４を有する部分の一部は、オスコネクタ１４との嵌合状態で、筐体１６の内部空間３０に配置される。また、基部６６は、内部空間３０に配置されない部分として、幅方向に沿って延び、スライダ７０を収容するスライダ収容溝７６を有している。 The base 66 has a terminal receiving hole 74 that penetrates in the insertion direction and into which the female terminal 62 is inserted and arranged. A part of the base 66 having the terminal receiving hole 74 is disposed in the internal space 30 of the housing 16 in a fitted state with the male connector 14. Further, the base 66 has a slider receiving groove 76 that extends along the width direction and receives the slider 70 as a portion that is not disposed in the internal space 30.

メス端子６２には、ワイヤーハーネス７８が接続されており、基部６６から引き出されたワイヤーハーネス７８は、ワイヤカバー６８によって被覆されている。そして、ワイヤーハーネス７８は、束ねた状態で、ワイヤカバー６８の一部から外部に引き出されるようになっている。 A wire harness 78 is connected to the female terminal 62, and the wire harness 78 drawn out from the base 66 is covered with a wire cover 68. The wire harness 78 is pulled out from a part of the wire cover 68 in a bundled state.

スライダ７０は、平板状に形成され、幅方向に沿って延びている。このスライダ７０には、凸状の第３嵌合部３８と嵌合する第４嵌合部８０としての溝が形成されている。 The slider 70 is formed in a flat plate shape and extends along the width direction. The slider 70 is formed with a groove as a fourth fitting portion 80 that fits the convex third fitting portion 38.

このように構成される外部メスコネクタ６０では、レバー７２を回動させると、スライダ７０がレバー７２と連動して、スライダ収容溝７６に収容される方向にスライドする。そして、スライダ７０のスライド動作により、スライダ７０に設けられた第４嵌合部８０としての溝が、筐体１６に設けられた凸状の第３嵌合部３８を引き込んでいく。これにより、外部メスコネクタ６０とオスコネクタ１４との嵌合が完了する。すなわち、外部メスコネクタ６０のメス端子６２が、オスコネクタ１４のオス端子２０と電気的に接続される。 In the external female connector 60 configured as described above, when the lever 72 is rotated, the slider 70 is slid in the direction of being accommodated in the slider accommodating groove 76 in conjunction with the lever 72. Then, as the slider 70 slides, the groove as the fourth fitting portion 80 provided in the slider 70 draws the convex third fitting portion 38 provided in the housing 16. Thereby, fitting with the external female connector 60 and the male connector 14 is completed. That is, the female terminal 62 of the external female connector 60 is electrically connected to the male terminal 20 of the male connector 14.

さらに外部メスコネクタ６０は、防水部材８２を備えている。この防水部材８２は、ゴムなどを用いてリング状に形成されており、基部６６のうち、筐体１６の内部空間３０に配置される部分の外面に装着される。そして、外部メスコネクタ６０とオスコネクタ１４とが嵌合した状態で、防水部材８２は、内部空間３０に配置された基部６６の外面と筐体１６の内面３２と基部６６との間をシールする。これにより、防水部材８２（シール部位）よりも底壁部４０ｃ側の内部空間３０の部分に、水が浸入するのを防ぐことができる。 Further, the external female connector 60 includes a waterproof member 82. The waterproof member 82 is formed in a ring shape using rubber or the like, and is attached to the outer surface of a portion of the base 66 that is disposed in the internal space 30 of the housing 16. In a state where the external female connector 60 and the male connector 14 are fitted, the waterproof member 82 seals between the outer surface of the base 66 disposed in the internal space 30 and the inner surface 32 and the base 66 of the housing 16. . Thereby, it is possible to prevent water from entering the portion of the internal space 30 closer to the bottom wall portion 40c than the waterproof member 82 (seal part).

なお、基部６６におけるワイヤカバー６８側の端部にも、図示しない防水部材が配置され、防水部材がワイヤーハーネス７８の外周面に密着するとともに、端子収容孔７４を閉塞している。これにより、端子収容孔７４を介してメス端子６２側に水が浸入するのを防ぐことができる。 A waterproof member (not shown) is also disposed at the end of the base 66 on the wire cover 68 side, and the waterproof member is in close contact with the outer peripheral surface of the wire harness 78 and closes the terminal accommodation hole 74. Thereby, water can be prevented from entering the female terminal 62 via the terminal accommodating hole 74.

次に、本実施形態に係る車載電子制御装置１０の特徴部分の作用効果について説明する。 Next, the effect of the characteristic part of the vehicle-mounted electronic control apparatus 10 which concerns on this embodiment is demonstrated.

ここで、一般的な搬送キャリアは、基板１２における幅方向端部からわずかに内側の部分に接触する。このため、保持部２２の幅が基板１２の幅と同等、乃至、基板１２よりも広い場合には、保持部２２が搬送キャリアに接触し、オス端子２０などのリフロー箇所への熱の当たり方が変化する虞がある。また、保持部２２が搬送キャリアに接触することで、基板１２に傾きが生じ、溶融はんだが流動して、オス端子２０が浮いてしまう虞もある。したがって、特別な搬送キャリアを用いなければならない。 Here, the general carrier is in contact with the inner portion of the substrate 12 slightly from the end in the width direction. For this reason, when the width of the holding portion 22 is equal to or wider than the width of the substrate 12, the holding portion 22 comes into contact with the carrier and heat is applied to the reflow location such as the male terminal 20. May change. Further, when the holding unit 22 comes into contact with the transport carrier, the substrate 12 is inclined, and there is a possibility that the molten solder flows and the male terminal 20 floats. Therefore, a special transport carrier must be used.

これに対し、本実施形態では、オスコネクタ１４の保持部２２より、基板１２の方が幅が広いので、特別な搬送キャリアを用いなくてもリフローを行うことができる。 On the other hand, in this embodiment, since the board | substrate 12 is wider than the holding | maintenance part 22 of the male connector 14, reflow can be performed even if it does not use a special conveyance carrier.

また、保持部２２が内部空間３０に収容された状態で、筐体１６の受け部４６が、異物に対するカバーとして機能する。したがって、カバーを設けなくとも、受け部４６よりも奥側、すなわち基板１２が配置された内部空間３０への異物の侵入を抑制することができる。 Further, the receiving portion 46 of the housing 16 functions as a cover for the foreign matter in a state where the holding portion 22 is accommodated in the internal space 30. Therefore, even if a cover is not provided, it is possible to suppress the entry of foreign matter into the inner side 30 where the substrate 12 is disposed, that is, the rear side of the receiving portion 46.

以上により、本実施形態に係る車載電子制御装置１０によれば、リフローはんだ付けを容易とするとともに、簡素な構成で異物侵入を抑制することができる。 As described above, according to the in-vehicle electronic control device 10 according to the present embodiment, reflow soldering can be facilitated, and foreign matter intrusion can be suppressed with a simple configuration.

また、保持部２２が筐体１６の内部空間３０に収容された状態で、保持部２２の第１嵌合部２４と、筐体１６の内面３２に設けた第２嵌合部３４が嵌合する。したがって、カバーを設けなくとも、第１嵌合部２４と第２嵌合部３４の嵌合により、挿入方向において開口部２８側への基板１２の移動を抑制することができる。 In addition, the first fitting portion 24 of the holding portion 22 and the second fitting portion 34 provided on the inner surface 32 of the housing 16 are fitted in a state where the holding portion 22 is accommodated in the internal space 30 of the housing 16. To do. Therefore, the movement of the substrate 12 toward the opening 28 in the insertion direction can be suppressed by fitting the first fitting portion 24 and the second fitting portion 34 without providing a cover.

また、外部メスコネクタ６０の嵌合時に、受け部４６にて保持部２２を支持することができる。これにより、保持部２２が底壁部４０ｃ側に押されて、保持部２２の挿入方向の位置がずれるのを抑制することができる。したがって、保持部２２の位置がずれ、オス端子２０のはんだ付け部に応力が作用するのを抑制することができる。 Further, the holding part 22 can be supported by the receiving part 46 when the external female connector 60 is fitted. Thereby, it can suppress that the holding | maintenance part 22 is pushed to the bottom wall part 40c side, and the position of the insertion direction of the holding | maintenance part 22 shifts | deviates. Therefore, it is possible to suppress the position of the holding portion 22 from shifting and the stress from acting on the soldered portion of the male terminal 20.

なお、本実施形態に係る車載電子制御装置１０は、上記した主たる効果に加えて、以下の効果をさらに奏することができる。 In addition to the main effects described above, the in-vehicle electronic control device 10 according to the present embodiment can further exhibit the following effects.

さらに本実施形態では、受け部４６が段差形状をなしており、支持面４６ａ及び閉塞面４６ｂに加えて、保持部２２の両端面２２ｅ，２２ｆと対向する対向面４６ｃを有している。これによれば、対向面４６を有さない構成に較べて、保持部２２の両端側に異物が溜まるのを抑制することができる。そして、蓄積により大型化した異物により、オス端子２０がショートするのを抑制することができる。しかしながら、受け部４６を有さない筐体１６を採用することもできる。 Further, in the present embodiment, the receiving portion 46 has a stepped shape, and has a facing surface 46c that faces both end surfaces 22e and 22f of the holding portion 22 in addition to the support surface 46a and the closing surface 46b. According to this, it is possible to prevent foreign matter from accumulating on both end sides of the holding portion 22 as compared with the configuration without the facing surface 46. And it can suppress that the male terminal 20 short-circuits by the foreign material enlarged by accumulation | storage. However, the housing 16 that does not have the receiving portion 46 may be employed.

さらに本実施形態では、電子部品１８が、基板１２の一面１２ａ及び裏面１２ｂに実装されている。また、オス端子２０が、一面１２ａ側から基板１２を貫通して、基板１２の裏面１２ｂ側に突出している。そして、保持部２２は、基板１２に対して開口部２８側に配置されるとともに、厚み方向において基板１２を跨ぐように配置されている。これによれば、図２に示すように、裏面１２ｂ側にオス端子２０が突出する構成でありながら、保持部２２によって、基板１２の裏面１２ｂと筐体１６の内面との隙間に異物が侵入するのを抑制することができる。また、基板１２の裏面１２ｂに電子部品１８が配置された構成でありながら、保持部２２によって、基板１２の裏面１２ｂと筐体１６の内面との隙間に異物が侵入するのを抑制することができる。特に、受け部４６と組み合わせると、基板１２が配置された内部空間３０側への異物の侵入をより効果的に抑制することができる。 Furthermore, in this embodiment, the electronic component 18 is mounted on the one surface 12 a and the back surface 12 b of the substrate 12. Further, the male terminal 20 penetrates the substrate 12 from the one surface 12 a side and protrudes to the back surface 12 b side of the substrate 12. And the holding | maintenance part 22 is arrange | positioned so that the board | substrate 12 may be straddled in the thickness direction while it is arrange | positioned with respect to the board | substrate 12 at the opening part 28 side. According to this, as shown in FIG. 2, the male terminal 20 protrudes on the back surface 12 b side, but the holding portion 22 causes foreign matter to enter the gap between the back surface 12 b of the substrate 12 and the inner surface of the housing 16. Can be suppressed. In addition, while the electronic component 18 is disposed on the back surface 12 b of the substrate 12, the holding unit 22 can prevent foreign matter from entering the gap between the back surface 12 b of the substrate 12 and the inner surface of the housing 16. it can. In particular, when combined with the receiving portion 46, it is possible to more effectively suppress the entry of foreign matter into the internal space 30 where the substrate 12 is disposed.

なお、電子部品１８が、基板１２の一面１２ａのみに実装され、且つ、オス端子２０が裏面１２ｂ側に突出する構成においても、上記したように、厚み方向において基板１２を跨ぐように保持部２２を配置すると、保持部２２によって、基板１２の裏面１２ｂと筐体１６の内面との隙間に異物が侵入するのを抑制することができる。 Even in the configuration in which the electronic component 18 is mounted only on the one surface 12a of the substrate 12 and the male terminal 20 protrudes toward the back surface 12b, as described above, the holding portion 22 extends across the substrate 12 in the thickness direction. If it is arranged, the holding part 22 can prevent foreign matter from entering the gap between the back surface 12 b of the substrate 12 and the inner surface of the housing 16.

しかしながら、基板１２に対するオス端子２０の実装構造としては、基板１２を貫通する構造に限定されるものではない。例えば、オス端子２０のはんだ付け部が基板１２の一面１２ａに配置される表面実装構造を採用することもできる。そして、基板１２の裏面１２ｂ側にオス端子２０が突出せず、且つ、裏面１２ｂに電子部品１８も実装されない構造を採用することもできる。 However, the mounting structure of the male terminal 20 with respect to the substrate 12 is not limited to a structure that penetrates the substrate 12. For example, a surface mounting structure in which the soldering portion of the male terminal 20 is disposed on the one surface 12a of the substrate 12 may be employed. A structure in which the male terminal 20 does not protrude on the back surface 12b side of the substrate 12 and the electronic component 18 is not mounted on the back surface 12b can also be employed.

さらに本実施形態では、第１嵌合部２４が凹状をなして挿入方向に延設され、第２嵌合部３４が凸状をなして挿入方向に延設されている。そして、第１嵌合部２４は、延設方向全長で幅が一定とされ、第２嵌合部３４は、開口部２８から遠ざかるほど幅が広くされている。したがって、基板１２を筐体１６に収容する際に、第１嵌合部２４を第２嵌合部３４に嵌合させやすい。また、第２嵌合部３４の幅が徐々に広がっており、底壁部４０ｃ側の端部の幅Ｗ２が、第１嵌合部２４の幅Ｗ１より広くなっている。したがって、基板１２の挿入にともなって、幅方向において第１嵌合部２４を第２嵌合部３４に接触させ、保持部２２、ひいては基板１２を、筐体１６に固定することができる。なお、厚み方向においては、基板押さえ部４４と溝部４８の壁面とにより、基板１２が筐体１６に固定される。また、第１嵌合部２４と第２嵌合部３４の嵌合により、挿入方向において、保持部２２（基板１２）を筐体１６に固定することができるため、筐体１６の開口部２８に別途カバー設けなくとも良い。 Further, in the present embodiment, the first fitting portion 24 has a concave shape and extends in the insertion direction, and the second fitting portion 34 has a convex shape and extends in the insertion direction. The first fitting portion 24 has a constant width over the entire length in the extending direction, and the second fitting portion 34 becomes wider as the distance from the opening 28 increases. Therefore, the first fitting portion 24 can be easily fitted to the second fitting portion 34 when the substrate 12 is accommodated in the housing 16. Further, the width of the second fitting portion 34 gradually increases, and the width W2 of the end portion on the bottom wall portion 40c side is wider than the width W1 of the first fitting portion 24. Therefore, with the insertion of the substrate 12, the first fitting portion 24 can be brought into contact with the second fitting portion 34 in the width direction, and the holding portion 22 and thus the substrate 12 can be fixed to the housing 16. In the thickness direction, the substrate 12 is fixed to the housing 16 by the substrate pressing portion 44 and the wall surface of the groove portion 48. Further, since the holding portion 22 (substrate 12) can be fixed to the housing 16 in the insertion direction by fitting the first fitting portion 24 and the second fitting portion 34, the opening portion 28 of the housing 16 is provided. There is no need to provide a separate cover.

しかしながら、凹状の第１嵌合部２４、凸状の第２嵌合部３４において、第２嵌合部３４の幅を一定とし、第１嵌合部２４の幅を開口部２８から遠ざかるほど広くしても同等の効果を奏することができる。また、第１嵌合部２４を凸状、第２嵌合部３４を凹状とした構成において、第１嵌合部２４及び第２嵌合部３４の一方の幅を一定とし、他方の幅を開口部２８から遠ざかるほど狭くしても良い。これによっても、開口部２８から遠ざかるほど凸状の幅を広くする構成と同等の効果を奏することができる。さらには、上記以外の嵌合構造、例えば突起が孔に嵌る構造、を採用することもできる。 However, in the concave first fitting portion 24 and the convex second fitting portion 34, the width of the second fitting portion 34 is constant, and the width of the first fitting portion 24 increases as the distance from the opening 28 increases. Even in this case, the same effect can be achieved. Further, in the configuration in which the first fitting portion 24 is convex and the second fitting portion 34 is concave, one width of the first fitting portion 24 and the second fitting portion 34 is constant, and the other width is set. The distance from the opening 28 may be reduced. Also by this, the effect equivalent to the structure which makes a convex width | variety wide as it distances from the opening part 28 can be show | played. Furthermore, a fitting structure other than the above, for example, a structure in which the protrusion fits into the hole can be adopted.

さらに本実施形態では、筐体１６の外面３６に設けた第３嵌合部３８と、外部メスコネクタ６０のハウジング６４（スライダ６８）に設けた第４嵌合部８０が嵌合する。すなわち、保持部２２を筐体１６に嵌合させ、筐体１６を外部メスコネクタ６０に嵌合させるようになっている。換言すれば、保持部２２を外部メスコネクタ６０に嵌合させないようにしている。このため、オスコネクタ１４は、オス端子２０とメス端子６２の電気的な接続部を除けば、外部メスコネクタ６０と機械的に接続されず、ワイヤーハーネス７８の応力が、ハウジング６４から直接的に保持部２２に伝達されない。したがって、ワイヤーハーネス７８の応力が、オス端子２０のはんだ付け部に作用しがたくなり、オス端子２０のはんだ付け部の接続信頼性を向上することができる。 Furthermore, in the present embodiment, the third fitting portion 38 provided on the outer surface 36 of the housing 16 and the fourth fitting portion 80 provided on the housing 64 (slider 68) of the external female connector 60 are fitted. That is, the holding portion 22 is fitted to the casing 16 and the casing 16 is fitted to the external female connector 60. In other words, the holding portion 22 is not fitted into the external female connector 60. For this reason, the male connector 14 is not mechanically connected to the external female connector 60 except for the electrical connection between the male terminal 20 and the female terminal 62, and the stress of the wire harness 78 is directly applied from the housing 64. It is not transmitted to the holding part 22. Therefore, the stress of the wire harness 78 is less likely to act on the soldered portion of the male terminal 20, and the connection reliability of the soldered portion of the male terminal 20 can be improved.

しかしながら、外部メスコネクタ６０の嵌合は、筐体１６に限定されるものではない。オスコネクタ１４の保持部２２に、外部メスコネクタ６０が嵌合される構成を採用することもできる。 However, the fitting of the external female connector 60 is not limited to the housing 16. A configuration in which the external female connector 60 is fitted to the holding portion 22 of the male connector 14 can also be adopted.

さらに本実施形態では、内部空間３０のうち、オスコネクタ１４及び基板１２の収容された部分が、防水空間となるように、筐体１６と外部メスコネクタ６０のハウジング６４との対向部部位がシールされるようになっている。換言すれば、保持部２２と筐体１６との間をシールせずとも、筐体１６とハウジング６４との間にシール部位を設けるだけで、オスコネクタ１４及び基板１２が防水状態となる。したがって、オスコネクタ１４（特にオス端子２０）及び基板１２の防水状態を確保しつつ、構成を簡素化することができる。具体的には、部品点数の削減、組み付け工数の削減、製造コストの低減を図ることができる。 Further, in the present embodiment, the facing portion between the housing 16 and the housing 64 of the external female connector 60 is sealed so that the portion of the internal space 30 in which the male connector 14 and the substrate 12 are accommodated becomes a waterproof space. It has come to be. In other words, the male connector 14 and the board 12 are waterproofed only by providing a seal portion between the housing 16 and the housing 64 without sealing between the holding portion 22 and the housing 16. Therefore, the configuration can be simplified while securing the waterproof state of the male connector 14 (particularly the male terminal 20) and the substrate 12. Specifically, it is possible to reduce the number of parts, the number of assembly steps, and the manufacturing cost.

特に本実施形態では、外部メスコネクタ６０の嵌合状態で、ハウジング６４を構成する基部６６の一部が、筐体１６の内部空間３０に挿入配置され、基部６６と筐体１６の内面３２との間がシールされるようになっている。このように、筐体１６の内面３２をシール部位とすると、外面３６にシール部位を設ける場合に較べて、車載電子制御装置１０の搬送時等において、シール部位に傷がついたりするのを抑制することができる。したがって、シール性を向上することができる。 In particular, in the present embodiment, when the external female connector 60 is fitted, a part of the base 66 constituting the housing 64 is inserted into the internal space 30 of the housing 16, and the base 66 and the inner surface 32 of the housing 16 are arranged. The space is sealed. As described above, when the inner surface 32 of the housing 16 is used as the seal portion, it is possible to suppress the seal portion from being damaged during the transportation of the in-vehicle electronic control device 10 as compared with the case where the outer surface 36 is provided with the seal portion. can do. Therefore, sealing performance can be improved.

しかしながら、筐体１６の内面３２以外がシールされる構成を採用することもできる。例えば、筐体１６の外面３６のうち、開口部２８の周囲に位置する開口縁部と、ハウジング６４との対向部位がシールされて、オスコネクタ１４及び基板１２の収容された内部空間３０の部分が、防水空間とされる構成としても良い。また、開口縁部を除く外面３６の部分と、ハウジング６４との対向部位がシールされて、オスコネクタ１４及び基板１２の収容された内部空間３０の部分が、防水空間とされる構成としても良い。さらには、ハウジング６４と保持部２２との間がシールされて、オスコネクタ１４及び基板１２の収容された内部空間３０の部分が、防水空間とされる構成としても良い。 However, it is also possible to adopt a configuration in which parts other than the inner surface 32 of the housing 16 are sealed. For example, a portion of the inner space 30 in which the male connector 14 and the substrate 12 are accommodated is sealed in the outer surface 36 of the housing 16 where the opening edge located around the opening 28 and the housing 64 are sealed. However, it may be configured as a waterproof space. Further, the portion of the outer surface 36 excluding the opening edge and the portion facing the housing 64 are sealed, and the portion of the internal space 30 in which the male connector 14 and the board 12 are accommodated may be a waterproof space. . Furthermore, the space between the housing 64 and the holding portion 22 may be sealed, and the portion of the internal space 30 in which the male connector 14 and the substrate 12 are accommodated may be a waterproof space.

さらに本実施形態では、筐体１６が、壁部４０の１つに開口部２８を有する箱状をなしており、第２嵌合部３４と第３嵌合部３８は、同一の壁部４０に設けられている。すなわち、内面３２に第２嵌合部３４が設けられた壁部４０の外面３６に、第３嵌合部３８が設けられている。ここで、外部メスコネクタ６０のメス端子６２の位置は、第３嵌合部３８と第４嵌合部８０との嵌合位置を基準として決定される。また、オスコネクタ１４のオス端子２０の位置は、第１嵌合部２４と第２嵌合部２４との嵌合位置を基準として決定される。したがって、第２嵌合部３４と第３嵌合部３８を異なる壁部４０に設ける構成に較べて、オスコネクタ１４（オス端子２０）と外部メスコネクタ６０（メス端子６２）との相対的な位置の精度を向上することができる。これにより、オス端子２０とメス端子６２の接続信頼性を向上することができる。また、オスコネクタ１４と外部メスコネクタ６０とを位置精度よく嵌合することができるので、例えば嵌合時においてオス端子２０のはんだ接続部に作用する応力を低減することもできる。 Furthermore, in this embodiment, the housing | casing 16 has comprised the box shape which has the opening part 28 in one of the wall parts 40, and the 2nd fitting part 34 and the 3rd fitting part 38 are the same wall parts 40. Is provided. That is, the third fitting portion 38 is provided on the outer surface 36 of the wall portion 40 provided with the second fitting portion 34 on the inner surface 32. Here, the position of the female terminal 62 of the external female connector 60 is determined based on the fitting position of the third fitting part 38 and the fourth fitting part 80. Further, the position of the male terminal 20 of the male connector 14 is determined based on the fitting position between the first fitting part 24 and the second fitting part 24. Therefore, compared with the structure which provides the 2nd fitting part 34 and the 3rd fitting part 38 in the different wall part 40, relative of the male connector 14 (male terminal 20) and the external female connector 60 (female terminal 62). The position accuracy can be improved. Thereby, the connection reliability of the male terminal 20 and the female terminal 62 can be improved. Further, since the male connector 14 and the external female connector 60 can be fitted with high positional accuracy, for example, stress acting on the solder connection portion of the male terminal 20 during fitting can be reduced.

特に本実施形態では、開口部２８が、厚み方向よりも幅方向に長い長方形をなしており、箱状をなす筐体１６の壁部４０のうち、厚み方向において開口部２８を挟むように位置する第１壁部４０ａと第２壁部４０ｂに、第２嵌合部３４及び第３嵌合部３８がそれぞれ設けられている。開口部２８が厚み方向よりも幅方向に長いため、筐体１６は、幅方向よりも厚み方向のほうが変形量が小さい。したがって、オスコネクタ１４と外部メスコネクタ６０との相対的な位置の精度を、さらに向上することができる。すなわち、オス端子２０のはんだ接続部に作用する応力をさらに低減することができる。 In particular, in the present embodiment, the opening 28 has a rectangular shape that is longer in the width direction than the thickness direction, and is positioned so as to sandwich the opening 28 in the thickness direction among the wall portions 40 of the box-shaped housing 16. A second fitting portion 34 and a third fitting portion 38 are provided on the first wall portion 40a and the second wall portion 40b, respectively. Since the opening 28 is longer in the width direction than in the thickness direction, the housing 16 has a smaller deformation amount in the thickness direction than in the width direction. Therefore, the accuracy of the relative position between the male connector 14 and the external female connector 60 can be further improved. That is, the stress acting on the solder connection portion of the male terminal 20 can be further reduced.

しかしながら、筐体１６の形状としては、箱状に限定されるものではない。少なくとも基板１２を挿入可能に開口された袋形状であれば良い。また、第２嵌合部３４と第３嵌合部３８が、筐体１６の異なる壁部４０に設けられる構成としても良い。例えば第１壁部４０ａと第２壁部４０ｂに第３嵌合部３８が設けられ、側壁部４０ｄ，４０ｅに第２嵌合部３４が設けられる構成としても良い。また、側壁部４０ｄ，４０ｅに、第２嵌合部３４及び第３嵌合部３８がそれぞれ設けられる構成としても良い。 However, the shape of the housing 16 is not limited to a box shape. It may be a bag shape that is open so that at least the substrate 12 can be inserted. Further, the second fitting portion 34 and the third fitting portion 38 may be provided on different wall portions 40 of the housing 16. For example, the third fitting portion 38 may be provided on the first wall portion 40a and the second wall portion 40b, and the second fitting portion 34 may be provided on the side wall portions 40d and 40e. Moreover, it is good also as a structure by which the 2nd fitting part 34 and the 3rd fitting part 38 are each provided in the side wall parts 40d and 40e.

以上、本発明の好ましい実施形態について説明したが、本発明は上述した実施形態になんら制限されることなく、本発明の主旨を逸脱しない範囲において、種々変形して実施することが可能である。 The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

オス端子２０の本数、保持部２２に対する配置は上記例に限定されるものではない。 The number of male terminals 20 and the arrangement with respect to the holding portion 22 are not limited to the above example.

第１嵌合部２４及び第２嵌合部３４の個数、配置は上記例に限定されるものではない。また、第３嵌合部３８の個数、配置も上記例に限定されるものではない。 The number and arrangement of the first fitting portion 24 and the second fitting portion 34 are not limited to the above example. Further, the number and arrangement of the third fitting portions 38 are not limited to the above example.

保持部２２として、高背部２６を有さない構成を採用することもできる。 A configuration without the high-back portion 26 may be employed as the holding portion 22.

筐体１６として、厚肉部４２を有さず、内面３２の開口部２８周辺に段差を有さないものを採用することもできる。 As the housing 16, it is possible to adopt a housing that does not have the thick portion 42 and does not have a step around the opening portion 28 of the inner surface 32.

幅方向両側に設けられた受け部４６が、第１壁部４０ａに設けられた受け部４６により連結される構成を示したが、第１壁部４０ａに受け部４６を有さない構成を採用することもできる。 Although the configuration in which the receiving portions 46 provided on both sides in the width direction are connected by the receiving portions 46 provided on the first wall portion 40a is shown, a configuration in which the receiving portions 46 are not provided on the first wall portion 40a is adopted. You can also

外部メスコネクタ６０としては、レバー式コネクタに限定されるものではない。 The external female connector 60 is not limited to a lever type connector.

車載電子制御装置１０としては、防水型に限定されるものではない、防水構造に関する点以外については、非防水型の車載電子制御装置１０にも適用することができる。 The in-vehicle electronic control device 10 is not limited to the waterproof type, but can be applied to the non-waterproof in-vehicle electronic control device 10 except for the point related to the waterproof structure.

１０・・・車載電子制御装置、１２・・・基板、１２ａ・・・一面、１２ｂ・・・裏面、１２ｃ・・・貫通孔、１４・・・オスコネクタ、１６・・・筐体、１８・・・電子部品、２０・・・オス端子、２２・・・保持部、２２ａ・・・露出面、２２ｂ・・・裏面、２２ｃ・・・上面、２２ｄ・・・下面、２２ｅ，２２ｆ・・・端面、２２ｇ・・・貫通孔、２４・・・第１嵌合部、２６・・・高背部、２８・・・開口部、３０・・・内部空間、３２・・・内面、３４・・・第２嵌合部、３６・・・外面、３８・・・第３嵌合部、４０・・・壁部、４０ａ・・・第１壁部、４０ｂ・・・第２壁部、４０ｃ・・・底壁部、４０ｄ，４０ｅ・・・側壁部、４２・・・厚肉部、４４・・・基板押さえ部、４６・・・受け部、４６ａ・・・支持面、４６ｂ・・・閉塞面、４６ｃ・・・対向面、４８・・・溝部、６０・・・外部メスコネクタ、６２・・・メス端子、６４・・・ハウジング、６６・・・基部、６８・・・スライダ、７０・・・ワイヤカバー、７２・・・レバー、７４・・・端子収容孔、７６・・・スライダ収容溝、７８・・・ワイヤーハーネス、８０・・・第４嵌合部、８２・・・防水部材 DESCRIPTION OF SYMBOLS 10 ... Car-mounted electronic control apparatus, 12 ... Board | substrate, 12a ... One side, 12b ... Back surface, 12c ... Through-hole, 14 ... Male connector, 16 ... Housing | casing, 18. ..Electronic parts, 20 ... male terminal, 22 ... holding part, 22a ... exposed surface, 22b ... back surface, 22c ... upper surface, 22d ... lower surface, 22e, 22f ... End surface, 22g ... through hole, 24 ... first fitting portion, 26 ... high profile, 28 ... opening, 30 ... internal space, 32 ... inner surface, 34 ... 2nd fitting part, 36 ... outer surface, 38 ... 3rd fitting part, 40 ... wall part, 40a ... 1st wall part, 40b ... 2nd wall part, 40c ... -Bottom wall part, 40d, 40e ... Side wall part, 42 ... Thick part, 44 ... Substrate pressing part, 46 ... Receiving part, 46a ... Support surface, 46b ..Occlusion surface, 46c ... opposing surface, 48 ... groove, 60 ... external female connector, 62 ... female terminal, 64 ... housing, 66 ... base, 68 ... slider 70 ... Wire cover, 72 ... Lever, 74 ... Terminal receiving hole, 76 ... Slider receiving groove, 78 ... Wire harness, 80 ... Fourth fitting part, 82 ..・ Waterproof material

Claims

A substrate (12);
A male terminal (20) for electrically connecting the external female connector (60) and the board; and a holding part (22) for holding the male terminal, wherein the male terminal is soldered to the board. Male connector (14),
A housing (16) having an opening (28) for inserting the substrate and accommodating the substrate in an internal space (30),
The holding part is housed in the internal space together with the male terminal and the substrate, and has a first fitting part (24) that fits into the casing in the housed state.
In the width direction perpendicular to both the insertion direction of the substrate and the thickness direction of the substrate, the holding portion is narrower than the substrate, and on both sides of the width direction, the substrate extends to the outside of the holding portion. Has been placed,
The housing is provided on the inner surface (32), and the second fitting portion (34) fitted to the first fitting portion of the holding portion, the male connector, and the board are accommodated in the internal space. A holding portion (46) that is in contact with at least both ends in the width direction on the back surface (22b) opposite to the opening-side surface (22a) of the holding portion in the state,
The receiving portion is provided with a groove (48) for guiding the substrate to the back side of the internal space,
The vehicle-mounted electronic control device, wherein a portion of the internal space outside the holding portion in the width direction except the groove portion is closed by the receiving portion.

The on-vehicle electronic control device according to claim 1, wherein the receiving portion (46) has a stepped shape and is disposed opposite to both end faces (22e, 22f) of the holding portion in the width direction.

In the thickness direction, an electronic component (18) is mounted on one surface (12a) of the substrate (12),
The male terminal (20) penetrates the substrate from one surface side of the substrate and protrudes to the back surface (12b) side opposite to the one surface,
The holding portion (22) is disposed at a position closer to the opening portion (28) than an end surface on the opening portion side of the substrate, and is disposed across the substrate in the thickness direction. The on-vehicle electronic control device according to claim 1 or 2.

In the thickness direction, an electronic component (18) is mounted on one surface (12a) of the substrate (12) and the back surface (12b) opposite to the one surface,
The holding portion (22) is disposed at a position closer to the opening portion (28) than an end surface on the opening portion side of the substrate, and is disposed across the substrate in the thickness direction. The on-vehicle electronic control device according to any one of claims 1 to 3.

The first fitting portion (24) has a concave shape and extends in the insertion direction of the substrate (12).
The second fitting portion (34) has a convex shape and extends in the insertion direction;
One of the first fitting part (24) and the second fitting part (34) is widened away from the opening (28), and the other is constant in width. The on-vehicle electronic control device according to any one of claims 1 to 4.

The first fitting portion (24) has a convex shape and extends in the insertion direction of the substrate (12),
The second fitting part (34) is recessed and extends in the insertion direction;
One of the first fitting part (24) and the second fitting part (34) has a width narrowed away from the opening (28), and the other has a constant width. The on-vehicle electronic control device according to any one of claims 1 to 4.

The housing (16) is provided on the outer surface (36), and when the female terminal (62) of the external female connector (60) is connected to the male terminal (20), the housing of the external female connector ( 64. The vehicle-mounted electronic control device according to any one of claims 1 to 6, further comprising a third fitting portion (38) fitted to 64).

In a state where the female terminal (62) is connected to the male terminal (20), a facing portion between the housing (16) and the housing (64) is sealed, and the internal space (30) is a waterproof space. The on-vehicle electronic control device according to any one of claims 1 to 7, wherein