JP2014067980A - Circuit board support device - Google Patents

Circuit board support device Download PDF

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Publication number
JP2014067980A
JP2014067980A JP2012214292A JP2012214292A JP2014067980A JP 2014067980 A JP2014067980 A JP 2014067980A JP 2012214292 A JP2012214292 A JP 2012214292A JP 2012214292 A JP2012214292 A JP 2012214292A JP 2014067980 A JP2014067980 A JP 2014067980A
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circuit board
terminal
longitudinal direction
electrical
electric
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Takakiyo Nishimoto
高清 西本
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Advics Co Ltd
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Advics Co Ltd
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Priority to JP2012214292A priority Critical patent/JP2014067980A/en
Priority to CN201380050715.1A priority patent/CN104685983B/en
Priority to PCT/JP2013/076093 priority patent/WO2014050980A1/en
Priority to DE112013004763.2T priority patent/DE112013004763B4/en
Publication of JP2014067980A publication Critical patent/JP2014067980A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/02—Arrangements of circuit components or wiring on supporting structure
    • H05K7/026—Multiple connections subassemblies

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Regulating Braking Force (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain excellent earthquake resistance and support stability with electric terminals even when a circuit board is used for a usage which is vulnerable to vibration and a heavy electrical component is mounted to the circuit board concerning a board support device that supports the circuit board with electric terminals implanted to a board housing case.SOLUTION: The circuit board support device that, by fixing an electric terminal implanted to a board housing case 2 to a circuit board 3, supports the circuit board with the electric terminal, supports a one end side of the circuit board 3 in a longer direction with a plurality of electric terminal 5 and supports the other end side of the circuit board in the longer direction with highly rigid electric terminals 6 the number of which is smaller than the electric terminals 5.

Description

この発明は、例えば、２輪車用ブレーキ液圧制御装置などに利用するのに好適な、耐震性を高めた回路基板支持装置に関する。   The present invention relates to a circuit board support device with improved seismic resistance suitable for use in, for example, a brake fluid pressure control device for a motorcycle.

既知の回路基板支持装置の中に、電子制御回路を有する回路基板を基板収容ケースに植設された電気端子で支持するものがある。   Among known circuit board support devices, there is one that supports a circuit board having an electronic control circuit with an electrical terminal that is implanted in a board housing case.

例えば、下記特許文献１は、その回路基板支持装置を車両のブレーキ液圧を制御する電子制御装置に採用している。また、下記特許文献２には、自動車に搭載されるセンサの制御回路を回路基板に実装し、その回路基板を基板収容ケースに植設された電気端子で支持する構造が示されている。   For example, Patent Document 1 below employs the circuit board support device as an electronic control device that controls the brake fluid pressure of the vehicle. Patent Document 2 below discloses a structure in which a control circuit for a sensor mounted on an automobile is mounted on a circuit board, and the circuit board is supported by electrical terminals implanted in a board housing case.

なお、ブレーキ液圧制御用の電子制御ユニットは、２輪車に搭載するものもあり、そうした２輪車用ブレーキ液圧制御ユニットをはじめ、（４輪車用のものであっても）車両における搭載スペース等の制限がある場合については、基板収容ケースを、内部に収容された回路基板が起立状態（電気端子の長手方向と回路基板の厚み方向が水平方向を向く状態）にして車両に搭載することがある。   Some electronic control units for controlling the brake fluid pressure are mounted on two-wheeled vehicles. Such a brake fluid pressure control unit for two-wheeled vehicles, including those for four-wheeled vehicles, are also used in vehicles. When there are restrictions on the mounting space, etc., the board housing case is mounted on the vehicle with the circuit board housed inside standing up (the longitudinal direction of the electrical terminals and the thickness direction of the circuit board face the horizontal direction). There are things to do.

特開２００２−３６８４５２号公報JP 2002-368552 A 特開２００７−２８２３２２号公報JP 2007-282322 A

車両用ブレーキ液圧制御ユニットにおいては、電磁弁を駆動するコイルの端子を基板収容ケースに収容される回路基板に固定してそのコイルを回路基板で支持することが行われている。   In a vehicle brake hydraulic pressure control unit, a terminal of a coil that drives an electromagnetic valve is fixed to a circuit board housed in a board housing case, and the coil is supported by the circuit board.

そのコイルのような重量の大きな電気部品を取り付けた回路基板を基板収容ケースに植設された電気端子で支持し、先に述べたように、回路基板が起立状態となる姿勢にして電子制御ユニットを車両に搭載すると、電気端子による回路基板の支持負担が増し、２輪車は特に、走行中に大きな振動を受けることから回路基板に作り込んだ電子制御回路などがその影響を受け易くなる。   The electronic control unit is configured such that the circuit board on which a heavy electrical component such as the coil is attached is supported by the electric terminals implanted in the board housing case, and the circuit board is in an upright posture as described above. Is mounted on the vehicle, the load of supporting the circuit board by the electric terminal is increased, and the two-wheeled vehicle is particularly affected by a large vibration during traveling, so that an electronic control circuit or the like built in the circuit board is easily affected.

この発明は、回路基板を起立姿勢にして振動を受け易い用途で使用する場合や、その回路基板が重たくて基板の振れを招き易いコイルなどの電気部品を搭載したものである場合にも、電気端子によって優れた耐震性及び支持安定性が得られるようにすることを目的としている。   This invention can be used even when the circuit board is used in an upright posture and used in applications that are susceptible to vibrations, or when the circuit board is heavy and mounted with electrical components such as coils that tend to cause board vibration. The purpose is to achieve excellent earthquake resistance and support stability by the terminal.

上記の課題を解決するため、この発明においては、基板収容ケースに植設された電気端子を回路基板に固定して当該回路基板をその電気端子で支持する回路基板支持装置を以下の通りに構成した。即ち、前記回路基板の長手方向一端側（以下では単に一端側とも言う）を複数の電気端子で支持し、その回路基板の長手方向他端側（以下では単に他端側とも言う）を前記一端側の電気端子よりも少数、かつ、高剛性の電気端子で支持するようにした。   In order to solve the above-described problems, in the present invention, a circuit board support device for fixing an electrical terminal implanted in a board housing case to a circuit board and supporting the circuit board with the electrical terminal is configured as follows. did. That is, one end side in the longitudinal direction of the circuit board (hereinafter also simply referred to as one end side) is supported by a plurality of electrical terminals, and the other end side in the longitudinal direction of the circuit board (hereinafter also simply referred to as the other end side) is supported by the one end. A small number of electrical terminals on the side and a high-rigidity electrical terminal are used for support.

基板長手方向他端側の電気端子は複数あると好ましいが、１本のみ設けられていてもよい。また、この他端側の電気端子は、基板回路との電気接続がなされないダミー端子として設けられていてもよい。   It is preferable that there are a plurality of electrical terminals on the other side in the longitudinal direction of the substrate, but only one electrical terminal may be provided. Further, the electric terminal on the other end side may be provided as a dummy terminal that is not electrically connected to the substrate circuit.

回路基板の長手方向一端側の電気端子は、剛性の異なるものが混在していてもよい。その場合には剛性の高い電気端子を回路基板の短手方向両端部に配置し、その基板短手方向両端の電気端子間に配置される基板短手方向両端の電気端子よりも低剛性の電気端子を比較対象にして回路基板の長手方向他端側の電気端子を比較対象の電気端子よりも高剛性にする。   The electrical terminals on one end side in the longitudinal direction of the circuit board may have different rigidity. In that case, electric terminals with high rigidity are arranged at both ends in the short direction of the circuit board, and the electric terminals with lower rigidity than the electric terminals at both ends in the short side of the board are arranged between the electric terminals at both ends of the short side of the board. The electrical terminal on the other end side in the longitudinal direction of the circuit board is made to have higher rigidity than the electrical terminal to be compared with the terminal as a comparison target.

この形態で回路基板の長手方向一端側、かつ、基板短手方向両端に配置される電気端子と回路基板の長手方向他端側の電気端子は同一剛性のものを用いても構わない。   In this embodiment, the electrical terminals arranged at one end in the longitudinal direction of the circuit board and at both ends in the lateral direction of the board and the electrical terminals at the other end in the longitudinal direction of the circuit board may have the same rigidity.

回路基板を支持する電気端子は、生産性やコストを考えると同一材質、同一厚みにするのがよい。一端側の剛性比較対象の電気端子よりも他端側の電気端子の端子幅を大きくするか、又は、基板収容ケースからの突出長さを短くして（他端側電気端子を太く、短くする）他端側の電気端子の剛性を一端側の電気端子（比較対象の端子）の剛性よりも高める方法を採ることによってその要求に応えることができる。   The electrical terminals that support the circuit board are preferably made of the same material and the same thickness in view of productivity and cost. The terminal width of the electrical terminal on the other end side is made larger than the electrical terminal for rigidity comparison on one end side, or the protruding length from the board housing case is shortened (the electrical terminal on the other end side is made thicker and shorter). ) The demand can be met by adopting a method in which the rigidity of the electric terminal on the other end side is made higher than the rigidity of the electric terminal on the one end side (terminal for comparison).

回路基板を支持する電気端子は、圧入によって回路基板に対する固定と基板回路への電気接続が完了するプレスフィット端子、回路基板の孔に挿通して半田付けする端子のどちらであってもよいが、回路基板の孔に通す際の作業性を考えるとどちらの端子を用いる場合にも、全端子の先端位置を同一平面上に揃えるのがよい。   The electrical terminal that supports the circuit board may be either a press-fit terminal that completes fixing to the circuit board and electrical connection to the circuit board by press-fitting, or a terminal that is inserted into the hole of the circuit board and soldered, Considering the workability when passing through the holes in the circuit board, it is preferable to align the tip positions of all the terminals on the same plane when using either terminal.

この状況でも、基板収容ケースに電気端子の基端側が埋め込まれる補強用の凸部を形成すれば、電気端子の基板収容ケースからの突出長さは凸部の高さ相当分短くすることができる。   Even in this situation, if the reinforcing convex portion for embedding the base end side of the electrical terminal is formed in the substrate housing case, the protruding length of the electrical terminal from the substrate housing case can be shortened by the height of the convex portion. .

回路基板には、基板支持用の電気端子とは異なる電気端子を介してコイルなどの電気部品が接続されていてもよい。この場合、電気部品を回路基板に接続する電気端子は、基板短手方向に加わる力に耐える剛性を基板長手方向に加わる力に耐える剛性よりも低く設定するのがよい。その理由は後述する。   An electrical component such as a coil may be connected to the circuit board via an electrical terminal different from the electrical terminal for supporting the board. In this case, the electrical terminal for connecting the electrical component to the circuit board is preferably set so that the rigidity withstanding the force applied in the short-side direction of the board is lower than the rigidity withstanding the force applied in the longitudinal direction of the board. The reason will be described later.

このほか、前記回路基板の長手方向一端側と他端側間に基板支持用の副電気端子を追設し、この副電気端子を前記一端側の電気端子の中のいずれか一つの電気端子の剛性よりも高剛性にするのも有効である。   In addition, a sub electrical terminal for supporting the board is additionally provided between one end side and the other end side in the longitudinal direction of the circuit board, and this sub electrical terminal is connected to one of the electrical terminals on the one end side. It is also effective to make the rigidity higher than the rigidity.

また、その副電気端子を追設するものは、当該副電気端子と基板長手方向他端側を支持する電気端子とに囲まれる領域において回路基板に電気部品を接続するのがよい。   Further, in the case where the auxiliary electric terminal is additionally provided, it is preferable that the electric component is connected to the circuit board in a region surrounded by the auxiliary electric terminal and the electric terminal supporting the other end in the longitudinal direction of the board.

この発明の回路基板支持装置は、回路基板の長手方向一端側よりも設置数の少ない基板長手方向他端側電気端子の剛性を長手方向一端側の電気端子の剛性よりも高くしており、これにより、基板長手方向他端側における支持力が増し、構造の複雑化を招く支持部の増設無しで回路基板の優れた支持安定性を得ることができる。   In the circuit board support device of the present invention, the rigidity of the electrical terminal on the other end side in the longitudinal direction of the circuit board, which is smaller than the one end side in the longitudinal direction of the circuit board, is set higher than the rigidity of the electrical terminal on the one end side in the longitudinal direction. As a result, the supporting force on the other end side in the longitudinal direction of the substrate is increased, and an excellent support stability of the circuit board can be obtained without adding a support portion that causes a complicated structure.

なお、基板長手方向他端側電気端子の剛性を、端子幅の広げや基板収容ケースからの端子突出長さの短縮によって高めるものは、端子の材質を異ならせる必要がなく、端子材料の共通化による生産性向上やコスト低減の効果が期待できる。   In addition, it is not necessary to change the material of the terminal to increase the rigidity of the electrical terminal on the other end in the board longitudinal direction by expanding the terminal width or shortening the protruding length of the terminal from the board housing case. Can be expected to improve productivity and reduce costs.

また、基板長手方向一端側の電気端子群の中の基板短手方向両端の電気端子の剛性を両端の電気端子間に配置される電気端子の剛性よりも高くしたものは、３箇所（基板長手方向他端側の電気端子が１つの場合）或いは４隅（基板長手方向他端側の電気端子が２つの場合）の支持剛性が高くなるため、基板の支持安定性がより高まり、端子に無理な力が加わり難くなって端子寿命が延びる。   In addition, in the electrical terminal group on one end side in the longitudinal direction of the substrate, the electrical terminals at both ends in the lateral direction of the substrate are made higher in rigidity than the electrical terminals arranged between the electrical terminals at both ends (the longitudinal direction of the substrate). Support rigidity at the four corners (when there are two electrical terminals at the other end in the longitudinal direction of the board) is high, and the support stability of the board is further increased, making it impossible for the terminals Terminal force is prolonged because it is difficult to apply extra force.

このほか、回路基板の長手方向一端側と他端側間に長手方向一端側の端子よりも高剛性の副電気端子を追設してその副電気端子でも基板を支持するものは、回路基板の支持剛性がより高まる。また、その副電気端子と基板長手方向他端側を支持する電気端子とに囲まれた領域において回路基板に電気部品を接続するものは、支持剛性の高い位置に電気部品が取り付けられるため、電気部品の振動に対する耐性が高まり振動の影響が基板支持部などに及び難くなる。   In addition, a circuit board having a higher rigidity than the terminal at one end in the longitudinal direction between the one end and the other end in the longitudinal direction of the circuit board and supporting the board also by the sub electrical terminal Support rigidity is further increased. In addition, an electrical component connected to a circuit board in an area surrounded by the auxiliary electrical terminal and the electrical terminal that supports the other end in the longitudinal direction of the board is attached to the circuit board at a position where the support rigidity is high. The resistance to vibrations of components increases, and the influence of vibrations hardly reaches the substrate support part.

中でも、電気部品を回路基板に接続する電気端子について、基板短手方向に加わる力に耐える剛性を基板長手方向に加わる力に耐える剛性よりも低く設定したものは、基板短手方向の振動に対する耐性向上の効果が顕著である。   Above all, for electrical terminals that connect electrical components to the circuit board, the rigidity that can withstand the force applied in the short direction of the board is set lower than the rigidity that can withstand the force applied in the longitudinal direction of the board. The improvement effect is remarkable.

それは、基板短手方向に加わる力に耐える剛性と基板長手方向に加わる力に耐える剛性の強弱関係が逆に設定されたものと比較すると電気部品を支持した電気端子が回路基板の短手方向に加わる力に対して撓み易く、回路基板と電気部品との間に基板短手方向の相対振動が起きたときに回路基板、電気部品の両者が相手の振動から受ける影響が軽減されるからである。これにより、回路基板の支持部、電気部品の支持部の耐久性が向上し、電気部品の振動が回路基板を支持する電気端子に及ぼす悪影響も抑えられる。   Compared to the case where the strength relationship between the rigidity that can withstand the force applied in the short direction of the board and the rigidity that can withstand the force that is applied in the longitudinal direction of the board is reversed, the electrical terminals that support the electrical components are in the short direction of the circuit board. It is easy to bend with respect to the applied force, and when the relative vibration in the short direction of the board occurs between the circuit board and the electrical component, the influence of both the circuit board and the electrical component from the vibration of the other party is reduced. . Thereby, durability of the support part of a circuit board and the support part of an electrical component improves, and the bad influence which the vibration of an electrical component exerts on the electrical terminal which supports a circuit board is also suppressed.

この発明の回路基板支持装置の一例を示す斜視図The perspective view which shows an example of the circuit board support apparatus of this invention 図１の回路基板支持装置の基板収容ケースの斜視図The perspective view of the board | substrate storage case of the circuit board support apparatus of FIG. 図２の基板収容ケースの平面図FIG. 2 is a plan view of the substrate storage case of FIG. 図２の基板収容ケースの底面図FIG. 2 is a bottom view of the substrate storage case of FIG. 図３のＶ−Ｖ線に沿った断面図Sectional drawing along the VV line of FIG. 図１の回路基板支持装置の回路基板に接続されたコイルの電気接続用端子の斜視図The perspective view of the terminal for electrical connection of the coil connected to the circuit board of the circuit board support apparatus of FIG. 図６の電気接続用端子の正面図Front view of the electrical connection terminal of FIG. 図６の電気接続用端子の側面図Side view of the electrical connection terminal of FIG. 図６の電気接続用端子の平面図Plan view of the electrical connection terminal of FIG.

以下、添付図面の図１〜図９に基づいて、この発明の回路基板支持装置の実施の形態を説明する。図１及び図２は、液圧制御ブロック（図示せず）と組み合わせて２輪車用ブレーキ液圧制御ユニットを構成する電子制御ユニット１に対してこの発明を適用したものである。その電子制御ユニット１は、基板収容ケース２と、そのケースの開口を液密に閉鎖する蓋（これも図示せず）と、基板収容ケース２に収容される回路基板３を組み合わせて構成されている。   Embodiments of a circuit board support device according to the present invention will be described below with reference to FIGS. 1 and 2 show the present invention applied to an electronic control unit 1 that constitutes a two-wheeled vehicle brake hydraulic pressure control unit in combination with a hydraulic pressure control block (not shown). The electronic control unit 1 is configured by combining a substrate housing case 2, a lid (also not shown) that closes the opening of the case in a liquid-tight manner, and a circuit board 3 accommodated in the substrate housing case 2. Yes.

その電子制御ユニット１は、この発明で言う回路基板支持装置の一形態である。２輪車用ブレーキ液圧制御ユニットは、この電子制御ユニット１を図示の姿勢（回路基板３が、その基板の短手方向が天地の方向となる向きに起立する姿勢）にして２輪車に搭載される。   The electronic control unit 1 is one form of the circuit board support device referred to in the present invention. The brake hydraulic pressure control unit for a two-wheeled vehicle makes the electronic control unit 1 a two-wheeled vehicle with the posture shown in the figure (the posture in which the circuit board 3 stands up in a direction in which the short direction of the board is the top-to-bottom direction). Installed.

なお、図１は、構造をわかりやすくするために、回路基板３を想像線にして表した。この回路基板３には、電子制御用の回路を作り出すＩＣチップなどが実装され、必要な電気回路も作りこまれているが、図には、基板の電源回路に電気的に接続して回路基板３で支持する電磁弁駆動用のコイル４のみを表示した。   Note that FIG. 1 shows the circuit board 3 as an imaginary line for easy understanding of the structure. The circuit board 3 is mounted with an IC chip or the like for creating a circuit for electronic control, and a necessary electric circuit is also built. In the figure, the circuit board is electrically connected to the power circuit of the board. Only the coil 4 for driving the electromagnetic valve supported by 3 is shown.

図を省略した液圧制御ブロックは、アルミニウム合金などからなるハウジングの内部に前輪と後輪に対応させた２系統の増、減圧用の液圧路を形成し、さらに、モータに駆動されるポンプや前後輪のブレーキ液圧の増減制御を行う電磁弁（その弁の励磁用のコイルを除いた要素）を組み付けたものである。その液圧ブロックは、この発明を特徴づけるものではないので詳細説明は省く。   The hydraulic pressure control block, not shown, has a two-system increase / depressurization hydraulic path corresponding to the front and rear wheels inside a housing made of aluminum alloy or the like, and is a pump driven by a motor. In addition, a solenoid valve (element excluding the exciting coil of the valve) that controls increase / decrease in brake fluid pressure of the front and rear wheels is assembled. The hydraulic block does not characterize the invention and will not be described in detail.

基板収容ケース２の基板収納室を作り出す本体ケース２ａには、コイル収容ケース２ｂが融着して液密に接合され、さらに、コネクタハウジング２ｃが一体に形成されている。   A coil housing case 2b is fused and liquid-tightly joined to a main body case 2a that creates a substrate housing chamber of the substrate housing case 2, and a connector housing 2c is integrally formed.

また、この基板収容ケース２の本体ケース２ａには、多数の電気端子５，６，７が植設されている。この電気端子５，６，７は、いずれも圧入によって回路基板に対する固定と基板回路への電気接続が完了するプレスフィット端子である。そのプレスフィット端子の圧入作業を容易化するために、電気端子５，６，７は、先端位置が同一平面上に揃えられている。   In addition, a large number of electrical terminals 5, 6, 7 are implanted in the main body case 2 a of the substrate housing case 2. These electric terminals 5, 6, and 7 are press-fit terminals that complete fixing to the circuit board and electrical connection to the board circuit by press-fitting. In order to facilitate the press-fitting operation of the press-fit terminals, the electrical terminals 5, 6 and 7 are aligned at the tip positions on the same plane.

回路基板３の長手方向一端側の電気端子５は、多数本が群れをなして設けられているが、回路基板３の長手方向他端側の電気端子６は、その数が基板の一端側の電気端子５に比べて少ない。   A large number of electrical terminals 5 on one end side in the longitudinal direction of the circuit board 3 are provided in groups, but the number of electrical terminals 6 on the other end side in the longitudinal direction of the circuit board 3 is on the one end side of the board. Less than the electrical terminal 5.

回路基板３を起立させた状態では、各電気端子５〜７が本体ケース２ａから横向きに延びだす姿勢になる。その姿勢で回路基板３を支持するため、支持の主体になる電気端子は、厚み方向よりも剛性の高い幅方向が回路基板の短手方向を向く姿勢にして本体ケース２ａに植設されている。   In a state where the circuit board 3 is erected, the electrical terminals 5 to 7 are extended from the main body case 2a sideways. In order to support the circuit board 3 in this posture, the electrical terminals that are the main support are implanted in the main body case 2a so that the width direction, which is more rigid than the thickness direction, faces the short direction of the circuit board. .

電気端子７は、副電気端子として設けられたものであって、回路基板３の長手方向一端側と他端側間において回路基板３を支持する。   The electrical terminal 7 is provided as a sub electrical terminal, and supports the circuit board 3 between one end side and the other end side in the longitudinal direction of the circuit board 3.

回路基板３の長手方向一端側の電気端子５は、例示の装置では、剛性の異なる２種類の端子が混在させて設けられている。   In the illustrated apparatus, the electrical terminal 5 on one end side in the longitudinal direction of the circuit board 3 is provided by mixing two types of terminals having different rigidity.

基板短手方向両端の電気端子５ａ（符号ａは説明の便宜上付加した）は、基板短手方向両端の電気端子５ａ，５ａ間に群れをなして配置される電気端子５ｂ（符号ｂも便宜上付加した）よりも剛性の高いものが設けられている。   Electrical terminals 5a at both ends in the short-side direction of the substrate (reference symbol a is added for convenience of description) are arranged in groups between the electrical terminals 5a, 5a at both ends of the short-side direction of the substrate (reference symbol b is also added for convenience). That have higher rigidity than the above).

また、回路基板３の長手方向他端側の電気端子６は、例示の装置においては長手方向一端側で主体をなす電気端子５ｂを比較対象にしてその電気端子５ｂよりも剛性の高いものが設けられている。   Also, the electrical terminal 6 on the other end side in the longitudinal direction of the circuit board 3 is provided with a higher rigidity than the electrical terminal 5b in the illustrated apparatus, with the electrical terminal 5b that is the main body on the one end side in the longitudinal direction being compared. It has been.

電気端子６の剛性は、電気端子５ａの剛性と同一であってもよいし、電気端子５ａの剛性よりも高くてもよい。この電気端子６は、２本が回路基板３の短手方向両端付近に基板長手方向の位相を揃えて配置されているが、基板の短手方向中間点に１本のみ設けることも許容される。   The rigidity of the electric terminal 6 may be the same as the rigidity of the electric terminal 5a or may be higher than the rigidity of the electric terminal 5a. Two of the electrical terminals 6 are arranged in the vicinity of both ends in the short direction of the circuit board 3 so that the phases in the longitudinal direction of the circuit board are aligned, but it is also possible to provide only one at the intermediate point in the short direction of the board. .

電気端子６は、電気回路の電気接続に利用されるもの、されないもの（基板支持のみを目的としたダミー端子）のどちらであってもよい。   The electrical terminal 6 may be either one used for electrical connection of an electrical circuit or not (a dummy terminal intended only for substrate support).

各電気端子は、同一厚み、同一材質の材料（例えば、錫めっき銅合金）で形成されている。そして、電気端子６と電気端子５ａは、図では確認しづらいが、比較対象の電気端子５ｂよりも端子幅を大きくすることによって電気端子５ｂよりも剛性が高められている。   Each electric terminal is formed of the same thickness and the same material (for example, tin-plated copper alloy). The electrical terminals 6 and 5a are harder to confirm in the figure, but their rigidity is enhanced compared to the electrical terminals 5b by making the terminal width larger than the electrical terminal 5b to be compared.

電気端子の剛性は、基板収容ケース２からの突出長さＬを短くする方法でも高めることができる。図示の装置は、基板収容ケース２の基板設置側の端面に補強用の起立した凸部８（図１参照）を設けて電気端子６や５ｂの基端側をその凸部８に埋め込んでおり、凸部８の高さ位置を変えれば先端位置が揃った端子であっても突出長さＬを異ならせることができる。   The rigidity of the electric terminal can also be increased by a method of shortening the protruding length L from the substrate housing case 2. The apparatus shown in the figure is provided with a reinforcing raised projection 8 (see FIG. 1) on the end surface of the substrate housing case 2 on the substrate installation side, and the proximal end side of the electrical terminals 6 and 5b is embedded in the projection 8. If the height position of the convex portion 8 is changed, the protruding length L can be made different even for a terminal having a uniform tip position.

電気端子（副電気端子）７は、その剛性を回路基板３の長手方向一端側の電気端子５ｂよりも高くしたものが用いられている。この電気端子（副電気端子）７を設けることで回路基板３の支持がより安定してなされる。この電気端子７は、図示の装置には３本存在する。その３本の電気端子７のうち、基板の短手方向位相が揃う位置にある２本と他の１本は、配線のコンパクト化などを図るために向きを９０°異ならせているが、同一向きであっても差し支えない。   As the electrical terminal (sub electrical terminal) 7, one having rigidity higher than that of the electrical terminal 5 b on one end side in the longitudinal direction of the circuit board 3 is used. By providing this electric terminal (sub-electric terminal) 7, the circuit board 3 is supported more stably. There are three electrical terminals 7 in the illustrated apparatus. Of the three electrical terminals 7, two of the terminals that are in the same phase in the short-side direction of the substrate and the other one are different in direction by 90 ° in order to make the wiring more compact. It does not matter even if it is in the direction.

コイル４は、回路基板３の全重量に占める重量割合の比較的大きな電気部品である。このコイル４は、電気端子９（基板支持機能のないコイル端子）を介して回路基板３に接続されており、その支持が、コイル端子９を介して回路基板３によってなされている。このコイル４は、基板収容ケースの本体ケース２ａに貫通して設けられたコイル挿入孔１０からコイル収容ケース２ｂに挿入される。   The coil 4 is an electrical component having a relatively large weight ratio with respect to the total weight of the circuit board 3. The coil 4 is connected to the circuit board 3 via electrical terminals 9 (coil terminals having no board support function), and the support is provided by the circuit board 3 via the coil terminals 9. The coil 4 is inserted into the coil housing case 2b through a coil insertion hole 10 provided through the main body case 2a of the substrate housing case.

図示の装置は、好ましい構成として、回路基板３の電気端子６と７とに囲まれる領域にそのコイル４を接続しており、コイルの振動に対する耐性が高い。そのために、コイル４の振動に起因した回路基板３の振動が起こり難くなっている。   In the illustrated apparatus, as a preferable configuration, the coil 4 is connected to a region surrounded by the electrical terminals 6 and 7 of the circuit board 3, and the resistance to vibration of the coil is high. Therefore, the vibration of the circuit board 3 due to the vibration of the coil 4 is difficult to occur.

コイル端子９は、図６〜図９に詳しく示した通り、長手途中が厚み直角方向に屈曲して厚み方向の一面側から見た姿がコの字状をなすように成形されており、その形状により、厚み方向の剛性が厚み直角方向の剛性よりも低くなっている。   As shown in detail in FIGS. 6 to 9, the coil terminal 9 is formed such that the middle part in the longitudinal direction bends in the direction perpendicular to the thickness and the shape seen from one side of the thickness direction forms a U-shape. Depending on the shape, the rigidity in the thickness direction is lower than the rigidity in the direction perpendicular to the thickness.

そのコイル端子９を、剛性の低い厚み方向が回路基板３の短手方向となる姿勢にして回路基板３に取り付けており、そのために、コイル端子９は、基板短手方向に加わる力に耐える剛性が基板長手方向に加わる力に耐える剛性よりも低くなっている。   The coil terminal 9 is attached to the circuit board 3 in such a posture that the thickness direction with low rigidity becomes the short direction of the circuit board 3, and therefore the coil terminal 9 is rigid enough to withstand the force applied in the short direction of the board. Is lower than the rigidity withstanding the force applied in the longitudinal direction of the substrate.

上記コイル端子９によってコイル４を支持した図示の電子制御ユニット１は、回路基板３の短手方向に加わる力に耐える剛性と基板長手方向に加わる力に耐える剛性の強弱関係が逆に設定されたコイル端子９でコイル４を支持するもの比較すると、コイル４を支持したコイル端子９が回路基板３の短手方向に加わる力に対して撓み易い。   In the illustrated electronic control unit 1 that supports the coil 4 by the coil terminal 9, the strength relationship between the rigidity that can withstand the force applied in the short direction of the circuit board 3 and the rigidity that can withstand the force that is applied in the longitudinal direction of the board is reversed. Comparing what supports the coil 4 with the coil terminal 9, the coil terminal 9 supporting the coil 4 is easily bent with respect to the force applied in the short direction of the circuit board 3.

そのために、回路基板３とコイル４との間に基板短手方向の相対振動が起きたときに回路基板３とコイル４の両者が相手の振動から受ける影響が軽減され、回路基板３やコイル４を支持する支持部の耐久性が向上し、コイル４の振動が回路基板３を支持する電気端子５，６，７に及ぼす悪影響も小さくなる。   For this reason, when relative vibration in the short-side direction of the substrate occurs between the circuit board 3 and the coil 4, the influence of both the circuit board 3 and the coil 4 from the vibration of the other party is reduced, and the circuit board 3 and the coil 4 are reduced. The durability of the support portion for supporting the circuit board is improved, and the adverse effect of the vibration of the coil 4 on the electrical terminals 5, 6, 7 supporting the circuit board 3 is reduced.

次に、例示の電子制御ユニット１のその他の好ましい構成を説明する。図４に示すように、コイル収容ケース２ｂは、先に説明した液圧制御ブロックにリング状シール部材１１を用いて液密に締結される。従来の２輪車用ブレーキ液圧制御ユニットに採用されているコイル収容ケースは、基板収容ケースの本体ケースに対して蓋を振動融着法で融着する際の荷重軽減を図るなどの目的から、コイル収容ケースの壁面位置と本体ケースの壁面位置を揃えており、それが原因で、コイル収容ケースが長方形になっていた。   Next, another preferable configuration of the exemplary electronic control unit 1 will be described. As shown in FIG. 4, the coil housing case 2 b is fastened in a liquid-tight manner using the ring-shaped seal member 11 to the hydraulic control block described above. The coil housing case employed in the conventional brake fluid pressure control unit for two-wheeled vehicles is intended to reduce the load when the lid is fused to the main body case of the substrate housing case by the vibration welding method. The wall surface position of the coil housing case and the wall surface position of the main body case are aligned, and the coil housing case is rectangular because of this.

そのために、液圧制御ブロックとの突合せ部に介在するシール部材も長方形を基本形とする形状になっていたが、そのシール部材はゴムで形成されているため、長辺と短辺の長さの差が小さい場合、短辺側が引き伸ばされて長辺側のシール溝にはまり込むことが考えられ、このようなときに誤組み付けが発生する可能性がある。   For this reason, the sealing member interposed at the abutting portion with the hydraulic pressure control block also has a basic shape of a rectangle, but since the sealing member is formed of rubber, the length of the long side and the short side is long. When the difference is small, it is conceivable that the short side is stretched and fits into the seal groove on the long side. In such a case, there is a possibility that erroneous assembly occurs.

そこで、例示の電子制御ユニット１は、コイル収容ケース２ｂを正多角形を基本形にした形状、具体的には、各辺の長さが等しく、隣り合う辺間に曲率半径が一定したＲコーナを有する形状にしている。図示したコイル収容ケース２ｂは、基板短手方向に対向する壁面の位置を基板収容ケースの本体ケース２ａの壁面よりも内側に配置して正方形を基本形とする形状にしている。そのために、シール部材１１をコイル収容ケース２ｂの外形と相似形のシールにすることができる。   In view of this, the electronic control unit 1 shown in the figure has a shape in which the coil housing case 2b has a regular polygon as a basic shape, specifically, an R corner in which the length of each side is equal and the radius of curvature is constant between adjacent sides. The shape has. The illustrated coil housing case 2b has a square base shape with the position of the wall surface facing the short side direction of the substrate disposed inside the wall surface of the main body case 2a of the substrate housing case. Therefore, the seal member 11 can be a seal similar to the outer shape of the coil housing case 2b.

基本形が正多角形のシール部材１１は組み付けに方向性がない。そのために、組み付けミスが起こらず、誤組み付けされた不良品が発生し難くなる。また、組み付け性が良くなるため生産性が向上するほか、誤組み付けでの噛み込みなどによる局部変形が起こり難く、シール性の向上にもつながる。   The sealing member 11 whose basic shape is a regular polygon has no directionality in assembly. For this reason, assembly errors do not occur, and defective products that are incorrectly assembled are less likely to occur. In addition, the ease of assembly improves productivity, and local deformation due to biting by misassembly is unlikely to occur, leading to improved sealability.

また、基板短手方向に対向した２つの壁を本体ケース２ａの壁面よりも内側に配置したことによってコイル収容ケース２ｂの容積が縮小されるので、外気温の変化に伴ってコイル収容ケース２ｂに入り込もうとする外気の量が少なくなり、水の浸入抑制にもつながる。   In addition, since the volume of the coil housing case 2b is reduced by arranging the two walls facing the short side of the substrate on the inner side of the wall surface of the main body case 2a, the coil housing case 2b is changed in accordance with the change in the outside air temperature. The amount of outside air trying to enter is reduced, which leads to suppression of water ingress.

このほか、正多角形を基本形にしたコイル収容ケースは、いびつな形状のケースに比べて成形性に優れ、ケースの共通化なども図りやすい。   In addition, a coil housing case based on a regular polygon is superior in formability compared to an irregularly shaped case, and it is easy to make the case common.

１ 電子制御ユニット
２ 基板収容ケース
２ａ 本体ケース
２ｂ コイル収容ケース
２ｃ コネクタハウジング
３ 回路基板
４ コイル
５〜７ 電気端子
５ａ 基板短手方向両端の電気端子
５ｂ 基板短手方向両端の電気端子間に配置される電気端子
８ 凸部
９ コイル端子
１０ コイル挿入孔
１１ シール部材 DESCRIPTION OF SYMBOLS 1 Electronic control unit 2 Substrate accommodation case 2a Main body case 2b Coil accommodation case 2c Connector housing 3 Circuit board 4 Coils 5-7 Electric terminal 5a Electric terminal 5b of both ends of short side of substrate Substrate is arranged between electric terminals of both ends of short side of substrate Electrical terminal 8 Convex 9 Coil terminal 10 Coil insertion hole 11 Seal member

Claims (6)

基板収容ケース（２）に植設された電気端子（５，６）を回路基板（３）に固定して当該回路基板（３）をその電気端子（５，６）で支持する回路基板支持装置であって、前記回路基板（３）の長手方向一端側を複数の電気端子（５）で支持し、その回路基板の長手方向他端側を前記一端側の電気端子（５）よりも少数、かつ、高剛性の電気端子（６）で支持した回路基板支持装置。   Circuit board support device for fixing the electric terminals (5, 6) implanted in the board housing case (2) to the circuit board (3) and supporting the circuit board (3) with the electric terminals (5, 6). The longitudinal direction one end side of the circuit board (3) is supported by a plurality of electrical terminals (5), and the longitudinal direction other end side of the circuit board is smaller than the electrical terminal (5) on the one end side, And the circuit board support apparatus supported with the highly rigid electrical terminal (6). 前記回路基板長手方向他端側の電気端子（６）の端子幅を回路基板長手方向一端側の電気端子（５）の端子幅よりも大きくするか又は基板収容ケース（２）からの突出長さを短くしてその回路基板長手方向他端側の電気端子（６）の剛性を回路基板長手方向一端側の電気端子（５）の剛性よりも高くした請求項１に記載の回路基板支持装置。   The terminal width of the electric terminal (6) on the other end side in the longitudinal direction of the circuit board is made larger than the terminal width of the electric terminal (5) on the one end side in the longitudinal direction of the circuit board or the protruding length from the board housing case (2) The circuit board support device according to claim 1, wherein the rigidity of the electric terminal (6) on the other end side in the longitudinal direction of the circuit board is made higher than the rigidity of the electric terminal (5) on the one end side in the longitudinal direction of the circuit board. 前記回路基板の長手方向一端側の電気端子のうち、回路基板短手方向両端部の電気端子（５ａ）の剛性を、その回路基板短手方向両端部の電気端子（５ａ、５ａ）間に配置される電気端子（５ｂ）の剛性よりも高くし、前記回路基板短手方向両端部の電気端子間に配置される電気端子（５ｂ）を比較対象にして回路基板長手方向他端側の電気端子（６）を比較対象の電気端子よりも高剛性にした請求項１又は２に記載の回路基板支持装置。   Among the electric terminals on one end in the longitudinal direction of the circuit board, the rigidity of the electric terminals (5a) at both ends in the short direction of the circuit board is arranged between the electric terminals (5a, 5a) at both ends in the short direction of the circuit board. Higher than the rigidity of the electric terminal (5b), and the electric terminal (5b) disposed between the electric terminals at both ends in the short direction of the circuit board is compared with the electric terminal on the other end side in the longitudinal direction of the circuit board The circuit board support device according to claim 1 or 2, wherein (6) has a higher rigidity than an electric terminal to be compared. 前記回路基板（３）に、基板支持用の電気端子とは異なる電気端子（９）を介して電気部品が接続され、電気部品を回路基板に接続するその電気端子（９）の基板短手方向に加わる力に耐える剛性が基板長手方向に加わる力に耐える剛性よりも低く設定されている請求項１〜３のいずれかに記載の回路基板支持装置。   An electric component is connected to the circuit board (3) via an electric terminal (9) different from the electric terminal for supporting the board, and the electric terminal (9) is connected to the circuit board in the short direction of the board. The circuit board support device according to any one of claims 1 to 3, wherein rigidity to withstand a force applied to the substrate is set lower than a rigidity to withstand a force applied to the longitudinal direction of the board. 前記回路基板の長手方向一端側の電気端子（５）と長手方向他端側の電気端子（６）との間に、回路基板の長手方向一端側の電気端子（５）の中のいずれか一つの電気端子よりも高剛性の基板支持用の副電気端子（７）が設置された請求項１〜４のいずれかに記載の回路基板支持装置。   One of the electrical terminals (5) at one end in the longitudinal direction of the circuit board between the electrical terminal (5) at one end in the longitudinal direction of the circuit board and the electrical terminal (6) at the other end in the longitudinal direction. The circuit board support device according to any one of claims 1 to 4, wherein a sub-electrical terminal (7) for supporting a board having higher rigidity than one electric terminal is installed. 前記回路基板の長手方向一端側の電気端子（５）と長手方向他端側の電気端子（６）との間に、回路基板の長手方向一端側の電気端子（５）の中の剛性比較対象の電気端子よりも高剛性の基板支持用の副電気端子（７）が設置され、その副電気端子（７）と前記回路基板の長手方向他端側の電気端子（６）とに囲まれる領域において前記電気部品が電気端子を介して回路基板に接続されている請求項３に記載の回路基板支持装置。   Rigidity comparison object in the electrical terminal (5) at one end in the longitudinal direction of the circuit board between the electrical terminal (5) at one end in the longitudinal direction of the circuit board and the electrical terminal (6) at the other end in the longitudinal direction A sub-electrical terminal (7) for supporting a board having higher rigidity than the electric terminal is installed, and is surrounded by the sub-electrical terminal (7) and the electric terminal (6) at the other end in the longitudinal direction of the circuit board. The circuit board support device according to claim 3, wherein the electrical component is connected to the circuit board via an electrical terminal.
JP2012214292A 2012-09-27 2012-09-27 Circuit board support device Pending JP2014067980A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2012214292A JP2014067980A (en) 2012-09-27 2012-09-27 Circuit board support device
CN201380050715.1A CN104685983B (en) 2012-09-27 2013-09-26 Circuit substrate bearing apparatus
PCT/JP2013/076093 WO2014050980A1 (en) 2012-09-27 2013-09-26 Circuit board support device
DE112013004763.2T DE112013004763B4 (en) 2012-09-27 2013-09-26 PCB support device

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JP2002368452A (en) * 2001-06-07 2002-12-20 Aisin Seiki Co Ltd Electronic controller
JP2008235855A (en) * 2007-02-23 2008-10-02 Advics:Kk Electronic control unit and method for manufacturing the same
JP2009241701A (en) * 2008-03-31 2009-10-22 Advics Co Ltd Brake fluid pressure control device

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