JP2005327643A - Electronic control device - Google Patents

Electronic control device Download PDF

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JP2005327643A
JP2005327643A JP2004145774A JP2004145774A JP2005327643A JP 2005327643 A JP2005327643 A JP 2005327643A JP 2004145774 A JP2004145774 A JP 2004145774A JP 2004145774 A JP2004145774 A JP 2004145774A JP 2005327643 A JP2005327643 A JP 2005327643A
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connector
electronic control
cover
control device
opening
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JP4259392B2 (en
JP2005327643A5 (en
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Toshikazu Shigyo
俊和 執行
Yasunori Odakura
安則 小田倉
Shinichi Sato
伸一 佐藤
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Hitachi Ltd
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Hitachi Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To ensure waterproofing property and current carrying property by enhancing the resistance to prying force applied to a connector at the insertion of a counterpart connector, and to provide a connector holding structure of an electronic control device which has left a history of abnormal prying forces. <P>SOLUTION: In the electronic control device, comprising a case which accommodates a printed circuit board, where an electronic component, a connector or the like are mounted and a cover with which the opening of the case is sealed, a L-shaped tongue part is provided in one part of the opening for the connector of the cover and the tongue part is made to come in contact with the connector, and the connector is held by an elastic force of the tongue part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電子部品やコネクタ等が実装されているプリント配線基板を収容する電子制御装置に対して、相手側コネクタ挿入時の前記コネクタのこじり強度を高める自動車用電子制御装置のコネクタ保持構造に関するものである。   The present invention relates to a connector holding structure for an automotive electronic control device that increases the twisting strength of the connector when a mating connector is inserted with respect to an electronic control device that houses a printed wiring board on which electronic components, connectors, and the like are mounted. Is.

従来、電子制御装置のケースとして、特許文献１が知られている。この従来の構造は、ケースの上面部に開口部を有し、電子部品等が実装されているプリント配線基板を収容するケース本体と、このケース本体の開口部を封止するカバーと、プリント配線基板の前端部に実装されているコネクタと、ケース本体の開口縁部とカバーの周縁部の内面との間を防水するシール材、コネクタ下面部とケース本体の前壁部上面との間、並びに、カバーのコネクタ用開口部内面とコネクタの側面部，上面部との間を防水するシール材から構成されている。コネクタは半田付け部によりプリント配線基板に固定されている。このような構成において、コネクタ用開口部とコネクタとの間には、製造上の公差や、組立て性を考慮して所定の隙間が設定され、組立てられたときに、両部材は通常の隙間を有して対向している。   Conventionally, Patent Document 1 is known as a case of an electronic control device. This conventional structure has an opening on the upper surface of the case, and a case main body that accommodates a printed wiring board on which electronic components are mounted, a cover that seals the opening of the case main body, and a printed wiring A connector mounted on the front end of the substrate, a sealant that waterproofs between the opening edge of the case body and the inner surface of the peripheral edge of the cover, between the connector lower surface and the upper surface of the front wall of the case body, and The cover is made of a sealing material that waterproofs between the inner surface of the connector opening and the side surface and upper surface of the connector. The connector is fixed to the printed wiring board by a soldering portion. In such a configuration, a predetermined gap is set between the connector opening and the connector in consideration of manufacturing tolerances and assemblability, and when assembled, both members have normal gaps. Have opposites.

特開平０７−２６３８７５号公報JP 07-263875 A

解決しようとする問題点は、前記従来構造において、プリント配線基板の前端部に実装されているコネクタに、相手側コネクタを挿入する、またはコネクタに外力が加わるときに、コネクタ下面部とケース本体との間の隙間に関して、基板とコネクタが接触しているため、コネクタの下方向への移動は制限されるが、コネクタ上面部とカバーの開口部内面との間の隙間には、コネクタの上方向への移動が制限されず、さらにシール部の隙間が変動し、シール材の界面剥離を抑止できない点とコネクタ端子のハンダ部にかかる応力によりハンダクラック等を防止できない点で、信頼性を損なう可能性があった。   The problem to be solved is that, in the conventional structure, when the mating connector is inserted into the connector mounted on the front end portion of the printed wiring board or when an external force is applied to the connector, the connector lower surface portion and the case body Because the board and the connector are in contact with each other, the downward movement of the connector is limited, but the gap between the upper surface of the connector and the inner surface of the opening of the cover There is no restriction on the movement of the seal, and the gap between the seals fluctuates, interfacial peeling of the sealant cannot be suppressed, and solder cracks cannot be prevented due to the stress applied to the solder part of the connector terminals. There was sex.

さらに、シール材による封止構造より、規定以上の印加外力により、シール部のシール材の界面剥離とコネクタ端子のハンダ部のクラック等については、目視による確認ができないため、相手側コネクタ挿入時に印加されるコネクタへの異常こじり力又は外力のかかった履歴を記録する必要があった。   Furthermore, due to the sealing structure with the sealing material, the interface peeling of the sealing material of the sealing part and the crack of the solder part of the connector terminal, etc. cannot be visually confirmed due to an applied external force exceeding the specified value. It was necessary to record the history of the abnormal twisting force or external force applied to the connector.

本発明の目的は、コネクタの耐こじり強度を高めて、防水性，通電性を確保することと異常こじり力に対して履歴を記録した電子制御装置のコネクタ保持構造を提供することである。   An object of the present invention is to provide a connector holding structure for an electronic control device in which a history of an abnormal twisting force is recorded by increasing the resistance against twisting of the connector to ensure waterproofness and electrical conductivity.

本発明は、コネクタの移動を制限するために、カバーのコネクタ用開口部の一部に、Ｌ字形状の舌片部位を設けて、コネクタ上面部を押さえ、コネクタの上面部とカバーの開口部内面との隙間を無くす特徴とする。   In order to limit the movement of the connector, the present invention provides an L-shaped tongue piece part in a part of the connector opening of the cover, presses the upper surface of the connector, the upper surface of the connector and the opening of the cover It is characterized by eliminating the gap with the inner surface.

また、舌片部位の内面とコネクタ上面部との間に、隙間を設けた場合でも、規定以上の外力をコネクタに受けたときに、カバーに塑性変形する舌片部位を設けたことを特徴とする。   Further, even when a gap is provided between the inner surface of the tongue piece portion and the upper surface portion of the connector, the cover is provided with a tongue piece portion that is plastically deformed when an external force exceeding a specified value is received by the connector. To do.

本発明の電子制御装置は、プリント配線基板の前端部に実装されているコネクタに、相手側コネクタを挿入するとき、又はコネクタに外力を受けたときに、カバーの舌片部位がコネクタ上面部との接触により、コネクタの移動を制限し、シール材の剥離を抑止できることと、コネクタ端子のハンダ部にかかる応力によるハンダクラック等を防止できる利点がある。   In the electronic control device of the present invention, when the mating connector is inserted into the connector mounted on the front end portion of the printed wiring board or when an external force is applied to the connector, the tongue portion of the cover is connected to the upper surface portion of the connector. This contact has the advantages of restricting the movement of the connector and suppressing the peeling of the sealing material and preventing solder cracks due to the stress applied to the solder portion of the connector terminal.

また、本発明によれば、規定以上の外力を下方向からコネクタに受けたときに、塑性変形する舌片部位が変形し、その変形量により、異常外力を受けた履歴を記録でき、使用有無の判断ができる利点がある。   Further, according to the present invention, when an external force exceeding a specified value is received by the connector from below, the tongue piece part that undergoes plastic deformation is deformed, and the history of receiving the abnormal external force can be recorded according to the amount of deformation. There is an advantage that can be judged.

以下、本発明を実施するための最良の形態を実施例によって具体的に説明するが、本発明は以下の実施例に限定されるものではない。   Hereinafter, the best mode for carrying out the present invention will be specifically described by way of examples. However, the present invention is not limited to the following examples.

図１は、本発明に係る電子制御装置のコネクタ保持構造を示す斜視図である。コネクタの端子は省略している。図２は、本発明に係る電子制御装置のコネクタ保持構造を示す要部斜視図である。図３は、本発明に係る電子制御装置のコネクタ保持構造を示す断面図である。   FIG. 1 is a perspective view showing a connector holding structure of an electronic control device according to the present invention. Connector terminals are omitted. FIG. 2 is a main part perspective view showing the connector holding structure of the electronic control device according to the present invention. FIG. 3 is a cross-sectional view showing the connector holding structure of the electronic control device according to the present invention.

図１及び図３に示すように、電子制御装置１は、電子部品やコネクタ１２等が実装されているプリント配線基板１０，プリント配線基板１０を収容するケース２０を主な部材として、ケース本体２１の開口部を封止するカバー２２と、プリント配線基板１０をプリント配線基板１０の前端部に実装されているコネクタ１２と、ケース本体２１の開口縁部
２１ａとカバー２２の周縁部２２ｂの内面との間を防水するシール材３１，コネクタ下面部１２ｃとケース本体２１の前壁部上面２１ｂとの間、並びに、カバー２２のコネクタ用開口部内面２３ａとコネクタの側面部１２ｂ，上面部１２ａとの間を防水シール材３０，ケース本体２１とカバー２２を固定するねじ４０から構成されている。 As shown in FIGS. 1 and 3, the electronic control device 1 includes a case main body 21 having a printed wiring board 10 on which electronic components, a connector 12, and the like are mounted, and a case 20 containing the printed wiring board 10 as main members. A cover 22 for sealing the opening of the connector, a connector 12 on which the printed wiring board 10 is mounted on the front end of the printed wiring board 10, an opening edge 21a of the case body 21 and an inner surface of the peripheral edge 22b of the cover 22 Between the sealing material 31 that waterproofs between the connector, the lower surface portion 12c of the connector and the upper surface 21b of the front wall portion of the case body 21, and between the connector opening inner surface 23a of the cover 22 and the side surface portion 12b and upper surface portion 12a of the connector. It is comprised from the waterproof seal material 30 and the screw 40 which fixes the case main body 21 and the cover 22 between.

プリント配線基板１０は、基板１１の前端部にコネクタ１２を実装し、ハンダ部１４により固定されて、電気的な通電を供給する。   The printed wiring board 10 has a connector 12 mounted on the front end portion of the board 11 and is fixed by a solder part 14 to supply electrical current.

ケース２０は、ケース本体２１とカバー２２から構成され、内部にプリント配線基板
１０を収容する、カバー２２には、プリント配線基板１０に実装されているコネクタ１２の形状に相似な開口部を設け、そのコネクタ用開口部２４の一部に、Ｌ字形状の舌片部位２３を少なくとも一つ以上設ける。舌片部位２３は、耐こじり強度も高めるためにコネクタ上面部１２ａと接触させ、舌片の弾性力によりコネクタを保持させる。異種材料による線膨張係数の違いによる変形を舌片部位２３で吸収させることで、コネクタ上部面１２ａにクラックを発生させないようにする。さらに、舌片部位２３の高さ，幅，接触面積，カバー２２の板厚等を変ることで強度を調整できる。 The case 20 includes a case main body 21 and a cover 22, and accommodates the printed wiring board 10 therein. The cover 22 is provided with an opening similar to the shape of the connector 12 mounted on the printed wiring board 10, At least one L-shaped tongue piece portion 23 is provided in a part of the connector opening 24. The tongue piece portion 23 is brought into contact with the connector upper surface portion 12a in order to increase the kink resistance, and the connector is held by the elastic force of the tongue piece. By causing the tongue portion 23 to absorb the deformation due to the difference in the linear expansion coefficient due to the different material, the crack is not generated on the connector upper surface 12a. Furthermore, the strength can be adjusted by changing the height, width, contact area, plate thickness of the cover 22 and the like of the tongue piece portion 23.

本実施例によれば、コネクタ１２の上方向への移動を制限でき、カバーのコネクタ用開口部２２ａとコネクタ上面部１２ａにおける隙間の変動を無くし、シール材３０の剥離を抑止し、コネクタ端子１３のハンダ部１４にかかる応力によるハンダクラック等を防止する耐こじり強度を高めたコネクタ保持構造となり、防水性，通電性を確保できる。   According to the present embodiment, the upward movement of the connector 12 can be restricted, the gap between the connector opening 22a of the cover and the connector upper surface portion 12a is eliminated, the peeling of the sealing material 30 is suppressed, and the connector terminal 13 Thus, the connector holding structure is improved in strength to prevent the occurrence of solder cracks due to the stress applied to the solder portion 14, thereby ensuring waterproofness and electrical conductivity.

図４は、コネクタの下方向より、外力を受けたときの構造を示す断面図である。図５は、外力を受けた後、塑性変形した履歴を示す断面図である。   FIG. 4 is a cross-sectional view showing the structure when an external force is received from below the connector. FIG. 5 is a cross-sectional view showing a history of plastic deformation after receiving an external force.

電子制御装置１は、実施例１と同様の構造を有しているが、カバー２２のコネクタ用開口部２４の一部に、Ｌ字形状に形成した塑性変形する舌片部位２３を少なくとも一つ以上設けてある。舌片部位２３は、規定以上の外力Ｆをコネクタ１２の下方向から受けたとき、塑性変形するように形成され、印加外力の履歴を記録できるようにする。舌片部位２３の高さ，幅，接触面積，カバーの板厚，コネクタ上面部１２ａとの隙間を変えることにより，塑性変形しないこじり力又は外力Ｆを調整できる。   The electronic control device 1 has the same structure as that of the first embodiment, but at least one tongue-shaped portion 23 that is plastically deformed and is formed in an L shape in a part of the connector opening 24 of the cover 22. The above is provided. The tongue portion 23 is formed so as to be plastically deformed when an external force F exceeding a specified value is received from the lower side of the connector 12 so that the history of the applied external force can be recorded. By changing the height, width, contact area, cover plate thickness, and gap with the connector upper surface portion 12a of the tongue piece portion 23, the twisting force or the external force F that does not cause plastic deformation can be adjusted.

本実施例によれば、コネクタ１２に異常こじり力又は外力Ｆを受けたことを目視で、カバー２２の舌片部位２３にて確認でき、カバーのコネクタ用開口部２２ａとコネクタ上面部１２ａにおける隙間のシール材３０の剥離とコネクタ端子１３のハンダ部１４にかかる応力によるハンダクラック等の信頼性を損なうことを示唆でき、電子制御装置の使用有無の判断ができる構造とする。   According to the present embodiment, it can be visually confirmed at the tongue piece portion 23 of the cover 22 that the connector 12 has been subjected to an abnormal twisting force or external force F, and the gap between the connector opening 22a of the cover and the connector upper surface portion 12a. It is possible to suggest that the reliability of solder cracks and the like due to the peeling of the sealing material 30 and the stress applied to the solder portion 14 of the connector terminal 13 is impaired, and to determine whether or not the electronic control device is used.

図６は、本発明に係る電子制御装置のコネクタ保持構造を示す要部斜視図であり、(ａ)が舌片部位のＶ字形状であり、（ｂ）が舌片部位のＵ字形状である。   FIG. 6 is a perspective view of a main part showing the connector holding structure of the electronic control device according to the present invention, where (a) is a V-shape of the tongue piece portion, and (b) is a U-shape of the tongue piece portion. is there.

電子制御装置１は、実施例１と同様の構造を有しているが、カバー２２のコネクタ用開口部２４の一部に形成した舌片部位２３の形状は、Ｖ字，Ｕ字形状等であってもよい。   The electronic control unit 1 has the same structure as that of the first embodiment, but the shape of the tongue piece portion 23 formed in a part of the connector opening 24 of the cover 22 is V-shaped, U-shaped or the like. There may be.

実施例１によれば、コネクタ１２の上方向への移動を制限でき、カバーのコネクタ用開口部２２ａとコネクタ上面部１２ａにおける隙間の変動を無くし、シール材３０の剥離を抑止し、コネクタ端子１３のハンダ部１４にかかる応力によるハンダクラック等を防止する耐こじり強度を高めたコネクタ保持構造となり、防水性，通電性を確保できる。   According to the first embodiment, the upward movement of the connector 12 can be restricted, the gap between the connector opening 22a of the cover and the connector upper surface portion 12a is eliminated, the peeling of the sealing material 30 is suppressed, and the connector terminal 13 Thus, the connector holding structure is improved in strength to prevent the occurrence of solder cracks due to the stress applied to the solder portion 14, thereby ensuring waterproofness and electrical conductivity.

実施例２によれば、コネクタ１２に異常こじり力又は外力Ｆを受けたことを目視で、カバー２２の舌片部位２３にて確認でき、カバーのコネクタ用開口部２２ａとコネクタ上面部１２ａにおける隙間のシール材３０の剥離とコネクタ端子１３のハンダ部１４にかかる応力によるハンダクラック等の信頼性を損なうことを示唆でき、電子制御装置の使用有無の判断ができる構造とする。   According to the second embodiment, it can be visually confirmed at the tongue piece portion 23 of the cover 22 that the connector 12 has been subjected to an abnormal twisting force or external force F, and a gap between the connector opening 22a of the cover and the connector upper surface portion 12a. It is possible to suggest that the reliability of solder cracks and the like due to the peeling of the sealing material 30 and the stress applied to the solder portion 14 of the connector terminal 13 is impaired, and to determine whether or not the electronic control device is used.

本発明に係る電子制御装置のコネクタ保持構造の斜視図である。It is a perspective view of the connector holding structure of the electronic control unit concerning the present invention. 図１に示した電子制御装置のコネクタ保持構造の要部斜視図である。It is a principal part perspective view of the connector holding structure of the electronic control apparatus shown in FIG. 図１に示した電子制御装置のコネクタ保持構造の断面図である。It is sectional drawing of the connector holding structure of the electronic control apparatus shown in FIG. 図３に示した電子制御装置の外力を受けた状態の断面図である。It is sectional drawing of the state which received the external force of the electronic control apparatus shown in FIG. 電子制御装置の外力を受けた変形後の断面図である。It is sectional drawing after a deformation | transformation which received the external force of the electronic controller. 図１に示した電子制御装置のコネクタ保持構造の要部斜視図である。It is a principal part perspective view of the connector holding structure of the electronic control apparatus shown in FIG.

符号の説明Explanation of symbols

１…電子制御装置、１０…プリント配線基板、１１…基板、１２…コネクタ、１２ａ…コネクタ上面部、１２ｂ…コネクタ側面部、１２ｃ…コネクタ下面部、１３…コネクタ端子、１４…ハンダ部、２０…ケース、２１…ケース本体、２１ａ…開口縁部、２１ｂ…前壁部上面、２２…カバー、２２ａ…コネクタ用開口部、２２ｂ…周縁部、２３…舌片部位、３０，３１…シール材、４０…ねじ。
DESCRIPTION OF SYMBOLS 1 ... Electronic control apparatus, 10 ... Printed wiring board, 11 ... Board | substrate, 12 ... Connector, 12a ... Connector upper surface part, 12b ... Connector side surface part, 12c ... Connector lower surface part, 13 ... Connector terminal, 14 ... Solder part, 20 ... Case, 21 ... Case body, 21a ... Opening edge, 21b ... Front wall upper surface, 22 ... Cover, 22a ... Connector opening, 22b ... Rim, 23 ... Long piece part, 30,31 ... Seal material, 40 …screw.

Claims (3)

電子部品やコネクタ等が実装されているプリント配線基板を収容するケース本体と、前記ケース本体の開口部を封止するカバーとを備えた電子制御装置において、
前記カバーのコネクタ用開口部の一部に、Ｌ字形状の舌片部位を設けて、前記舌片部位と前記コネクタとを接触させ、前記舌片の弾性力により前記コネクタを保持させることを特徴とする電子制御装置。 In an electronic control device including a case main body that accommodates a printed wiring board on which electronic components and connectors are mounted, and a cover that seals an opening of the case main body,
An L-shaped tongue piece part is provided in a part of the connector opening of the cover, the tongue piece part is brought into contact with the connector, and the connector is held by the elastic force of the tongue piece. An electronic control device. 電子部品やコネクタ等が実装されているプリント配線基板を収容するケース本体と、前記ケース本体の開口部を封止するカバーとを備えた電子制御装置において、
前記カバーのコネクタ用開口部の一部に、前記コネクタへの規定以上の外力により、塑性変形する舌片部位を設けて、印加外力の履歴を記録できるようにしたことを特徴とする電子制御装置。 In an electronic control device including a case main body that accommodates a printed wiring board on which electronic components and connectors are mounted, and a cover that seals an opening of the case main body,
An electronic control device characterized in that a part of the connector opening of the cover is provided with a tongue piece portion that is plastically deformed by an external force more than specified to the connector so that a history of applied external force can be recorded. . 請求項１，２において、前記舌片部位の形状を、Ｖ字、又はＵ字形状としたことを特徴とする電子制御装置。
The electronic control device according to claim 1, wherein the tongue piece portion has a V shape or a U shape.
JP2004145774A 2004-05-17 2004-05-17 Electronic control unit Expired - Fee Related JP4259392B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009117285A (en) * 2007-11-09 2009-05-28 Hitachi Ltd Electronic device for automobile
US7563112B2 (en) 2006-12-13 2009-07-21 Denso Corporation Electronic device
JP2009163991A (en) * 2008-01-07 2009-07-23 Denso Corp Connector and electronic control apparatus
JP2013069439A (en) * 2011-09-21 2013-04-18 Hitachi Automotive Systems Ltd Seal structure of electronic control device
JP2014049917A (en) * 2012-08-31 2014-03-17 Noritz Corp Remote controller
CN109390765A (en) * 2017-08-07 2019-02-26 株式会社东海理化电机制作所 Electronic equipment

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7563112B2 (en) 2006-12-13 2009-07-21 Denso Corporation Electronic device
US7677905B2 (en) 2006-12-13 2010-03-16 Denso Corporation Electronic device and manufacturing method of the same
JP2009117285A (en) * 2007-11-09 2009-05-28 Hitachi Ltd Electronic device for automobile
JP2009163991A (en) * 2008-01-07 2009-07-23 Denso Corp Connector and electronic control apparatus
JP4591510B2 (en) * 2008-01-07 2010-12-01 株式会社デンソー Connector and electronic control unit
JP2013069439A (en) * 2011-09-21 2013-04-18 Hitachi Automotive Systems Ltd Seal structure of electronic control device
US8770989B2 (en) 2011-09-21 2014-07-08 Hitachi Automotive Systems, Ltd. Electronic control device
JP2014049917A (en) * 2012-08-31 2014-03-17 Noritz Corp Remote controller
CN109390765A (en) * 2017-08-07 2019-02-26 株式会社东海理化电机制作所 Electronic equipment
JP2019033146A (en) * 2017-08-07 2019-02-28 株式会社東海理化電機製作所 Electronic apparatus
CN109390765B (en) * 2017-08-07 2021-08-20 株式会社东海理化电机制作所 Electronic device

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