JP2020198379A - Electronic control device - Google Patents

Electronic control device Download PDF

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JP2020198379A
JP2020198379A JP2019104468A JP2019104468A JP2020198379A JP 2020198379 A JP2020198379 A JP 2020198379A JP 2019104468 A JP2019104468 A JP 2019104468A JP 2019104468 A JP2019104468 A JP 2019104468A JP 2020198379 A JP2020198379 A JP 2020198379A
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elastic member
circuit board
hollow portion
hollow
end side
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JP7293881B2 (en
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公男 門野
Kimio Kadono
公男 門野
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Denso Corp
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Denso Corp
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  • Casings For Electric Apparatus (AREA)
  • Mounting Of Printed Circuit Boards And The Like (AREA)
  • Connection Or Junction Boxes (AREA)
  • Mounting Components In General For Electric Apparatus (AREA)

Abstract

To provide an electronic control device capable of stably holding a circuit board by an elastic member.SOLUTION: In the electronic control device, an elastic member 20 has a columnar shape and has a solid portion 22 and a hollow portion 21. The hollow portion 21 is formed on one end of the elastic member 20 in the axial direction as a first hollow portion for mounting opened to accommodate an insertion portion 19. The solid portion 22 is formed to be adjacent to the hollow portion 21 in the axial direction.SELECTED DRAWING: Figure 5

Description

本発明は、電子部品が実装された回路基板を備える電子制御装置に関する。 The present invention relates to an electronic control device including a circuit board on which electronic components are mounted.

従来より、例えば車両に搭載される電子制御装置にあっては、複数の筐体部材を組み合わせてなる筐体の内部空間に回路基板を収容したものが供されている(例えば特許文献1参照)。
この種の電子制御装置では、筐体の内部に、回路基板を保持するゴム部材を設けて、回路基板のがたつきの発生を抑制するようにしたものがある。このゴム部材は、例えば一方の筐体部材と他方の筐体部材との間にて、回路基板とともに挟持されるようにして組付けられることで、組付け公差をも吸収することができる。
Conventionally, for example, an electronic control device mounted on a vehicle has been provided in which a circuit board is housed in an internal space of a housing formed by combining a plurality of housing members (see, for example, Patent Document 1). ..
In this type of electronic control device, a rubber member for holding the circuit board is provided inside the housing so as to suppress the occurrence of rattling of the circuit board. This rubber member can also absorb assembly tolerances by being assembled so as to be sandwiched together with a circuit board between, for example, one housing member and the other housing member.

特開2008−60465号公報Japanese Unexamined Patent Publication No. 2008-60465

しかしながら、上記した電子制御装置では、使用時における外部からの振動や温度環境変化等に起因して、ゴム部材により回路基板を保持する機能が損なわれる虞がある。即ち、ゴム部材のような弾性部材は、その形状如何によっては、温度環境変化等の影響が大きく作用して当該ゴム部材を変形させることもある。この場合、ゴム部材と回路基板との間のずれが生じ、或いは回路のがたつきが発生する等、依然として課題を内在している。 However, in the above-mentioned electronic control device, the function of holding the circuit board by the rubber member may be impaired due to external vibration during use, changes in the temperature environment, and the like. That is, depending on the shape of an elastic member such as a rubber member, the rubber member may be deformed due to a large influence of a change in temperature environment or the like. In this case, there are still inherent problems such as a gap between the rubber member and the circuit board, or rattling of the circuit.

本発明は上記事情に鑑みてなされたものであり、その目的は、弾性部材により回路基板を安定して保持することができる電子制御装置を提供することにある。 The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an electronic control device capable of stably holding a circuit board by an elastic member.

請求項1記載の発明によれば、弾性部材(20,25,30,40,50)において、挿通部(19,60)を収容可能な中空部(21,26)を有するものとしても、これと軸方向に隣り合う中実部(22,27,27a,27b)によって中空部を補強することができる。これにより、電子制御装置(1)使用時の温度環境変化等に起因する弾性部材の変形が生じ難くなり、弾性部材により回路基板(3)を押圧する力の変動を抑制することができ、回路基板を安定して保持することができる。また、弾性部材の中空部に挿通部を挿通することで、筐体(2)に対する弾性部材のずれを防止することができ、総じて弾性部材により回路基板を好適に保持することができる。 According to the invention of claim 1, even if the elastic member (20, 25, 30, 40, 50) has a hollow portion (21, 26) capable of accommodating the insertion portion (19, 60). The hollow portion can be reinforced by the solid portions (22, 27, 27a, 27b) adjacent to each other in the axial direction. As a result, the elastic member is less likely to be deformed due to changes in the temperature environment when the electronic control device (1) is used, and fluctuations in the force pressing the circuit board (3) by the elastic member can be suppressed. The substrate can be held stably. Further, by inserting the insertion portion into the hollow portion of the elastic member, it is possible to prevent the elastic member from slipping with respect to the housing (2), and the circuit board can be suitably held by the elastic member as a whole.

第1実施形態における電子制御装置の全体を上側から見た斜視図A perspective view of the entire electronic control device according to the first embodiment as viewed from above. 電子制御装置の全体を下側から見た斜視図Perspective view of the entire electronic control device from below カバーの組付け前の状態における本体ケースと回路基板を示す底面図Bottom view showing the main body case and circuit board in the state before assembling the cover 図3のIV-IV線に沿う断面図Sectional view taken along line IV-IV of FIG. 弾性部材の近傍部を拡大して示す断面図Cross-sectional view showing an enlarged view of the vicinity of the elastic member 弾性部材において中実部が無いとした場合における説明図Explanatory drawing when there is no solid part in the elastic member 第2実施形態における弾性部材の近傍部を拡大して示す断面図A cross-sectional view showing an enlarged portion of the vicinity of the elastic member in the second embodiment. 第3実施形態における弾性部材の近傍部を拡大して示す断面図FIG. 5 is an enlarged cross-sectional view showing a portion near the elastic member according to the third embodiment. 第4実施形態における弾性部材の近傍部を拡大して示す断面図FIG. 4 is an enlarged cross-sectional view showing a portion near the elastic member according to the fourth embodiment. 第5実施形態における弾性部材の近傍部を拡大して示す断面図FIG. 5 is an enlarged cross-sectional view showing a portion near the elastic member according to the fifth embodiment. 第6実施形態における弾性部材の近傍部を拡大して示す断面図FIG. 6 is an enlarged cross-sectional view showing a portion near the elastic member according to the sixth embodiment.

以下、本発明を具体化した複数の実施形態について、図面に基づき説明する。なお、各実施形態において実質的に同一の構成部位には同一の符号を付す等して説明を省略する。 Hereinafter, a plurality of embodiments embodying the present invention will be described with reference to the drawings. In each embodiment, substantially the same constituent parts are designated by the same reference numerals, and the description thereof will be omitted.

<第1実施形態>
第1実施形態について図1〜図6を参照しながら説明する。図1、図2に示す電子制御装置1は、例えば車両に搭載される電子装置である。電子制御装置1において外郭をなす筐体2は、全体として薄型の矩形箱状をなしており、その内部に回路基板3を収容している(図3、図4参照)。
<First Embodiment>
The first embodiment will be described with reference to FIGS. 1 to 6. The electronic control device 1 shown in FIGS. 1 and 2 is, for example, an electronic device mounted on a vehicle. The outer housing 2 of the electronic control device 1 has a thin rectangular box shape as a whole, and the circuit board 3 is housed therein (see FIGS. 3 and 4).

回路基板3は、電気絶縁材料からなる基材に図示しない配線が形成された矩形板状のプリント基板である。回路基板3には、図3に示すコネクタ4の他、図示しない制御IC、スイッチング素子、抵抗素子、コンデンサ等の電子部品が実装されており、前記配線と電子部品とで回路が形成されている。また、回路基板3には、当該基板3の板厚方向に貫通する複数の取付孔5が設けられている。取付孔5は、例えば円形に形成された取付用の孔である(図4、図5参照)。以下では、図1において上下方向となる回路基板3の板厚方向をZ方向とする。また、回路基板3の平面方向において、当該基板3周辺部のうちの一辺部に沿う方向をX方向、X方向と直交する方向をY方向とする。 The circuit board 3 is a rectangular plate-shaped printed circuit board in which wiring (not shown) is formed on a base material made of an electrically insulating material. In addition to the connector 4 shown in FIG. 3, electronic components such as control ICs, switching elements, resistance elements, and capacitors (not shown) are mounted on the circuit board 3, and a circuit is formed by the wiring and the electronic components. .. Further, the circuit board 3 is provided with a plurality of mounting holes 5 penetrating in the plate thickness direction of the board 3. The mounting hole 5 is, for example, a circular mounting hole (see FIGS. 4 and 5). In the following, the thickness direction of the circuit board 3 which is the vertical direction in FIG. 1 is defined as the Z direction. Further, in the plane direction of the circuit board 3, the direction along one side of the peripheral portion of the substrate 3 is the X direction, and the direction orthogonal to the X direction is the Y direction.

図1〜図3に示すように、コネクタ4は、筐体2の開口部2aから外部に露出するようになっており、図示しない外部装置からのケーブルが接続されて、当該外部装置と回路基板3上の回路とを電気的に中継する。コネクタ4は、回路基板3に対してY方向の一端側に配置されたハウジング4bと、当該ハウジング4bに保持された多数の端子4aとを有する。多数の端子4aは、X方向に並ぶように配列されており、回路基板3のY方向一端側に挿入実装されている(図3参照)。なお、同図3に示すように、取付孔5は、回路基板3における端子4aの実装領域3c寄りの2箇所と他端側の2箇所との、4箇所の部位(略隅部となる部位)に設けられるものとする。 As shown in FIGS. 1 to 3, the connector 4 is exposed to the outside through the opening 2a of the housing 2, and a cable from an external device (not shown) is connected to the external device and the circuit board. 3 Electrically relays to the circuit above. The connector 4 has a housing 4b arranged on one end side in the Y direction with respect to the circuit board 3, and a large number of terminals 4a held in the housing 4b. A large number of terminals 4a are arranged so as to be arranged in the X direction, and are inserted and mounted on one end side in the Y direction of the circuit board 3 (see FIG. 3). As shown in FIG. 3, the mounting holes 5 are provided at four locations (parts that are substantially corners) of the circuit board 3 at two locations near the mounting region 3c of the terminal 4a and two locations on the other end side. ) Shall be provided.

図1、図2に示す筐体2は、これを構成する本体ケース10とカバー11とを互いに組み合わせてなる2分割型のものであり、回路基板3とコネクタ4の基端側とを収容する内部空間を有する。本体ケース10及びカバー11は、例えばアルミダイキャストにより形成される筐体部材である。これら筐体部材は、鋼板のプレス成形や合成樹脂材料の射出成形等で形成してもよい。 The housing 2 shown in FIGS. 1 and 2 is a two-divided type in which the main body case 10 and the cover 11 constituting the housing 2 are combined with each other, and accommodates the circuit board 3 and the base end side of the connector 4. It has an internal space. The main body case 10 and the cover 11 are housing members formed by, for example, aluminum die casting. These housing members may be formed by press molding of a steel plate, injection molding of a synthetic resin material, or the like.

このうち、カバー11は、回路基板3を一面3a側から覆う第2筐体部材である(図2、図4参照)。カバー11は、図2に示すように全体として略矩形板状をなしており、その主面部(以下「底壁11a」と称する)と、その周縁のフランジ部11bとを一体に有する。底壁11aは、回路基板3の全部とコネクタ4の基端側とをカバーする大きさに形成されている。フランジ部11bは、底壁11a周辺(コネクタ4が位置する一辺部を除く)から、外側へ張出すように延設されている。フランジ部11bの4隅部には、ねじ9用の孔(図示略)が設けられている。 Of these, the cover 11 is a second housing member that covers the circuit board 3 from the one side 3a side (see FIGS. 2 and 4). As shown in FIG. 2, the cover 11 has a substantially rectangular plate shape as a whole, and has a main surface portion (hereinafter referred to as “bottom wall 11a”) thereof and a flange portion 11b on the periphery thereof integrally. The bottom wall 11a is formed in a size that covers the entire circuit board 3 and the proximal end side of the connector 4. The flange portion 11b extends from the periphery of the bottom wall 11a (excluding one side where the connector 4 is located) so as to project outward. Holes (not shown) for screws 9 are provided at the four corners of the flange portion 11b.

本体ケース10は、回路基板3が配置される第1筐体部材であり、その回路基板3の一面3a側が開放された略矩形箱状をなしている(図4参照)。図1に示すように、本体ケース10は、段付き状をなす上壁12と、その周辺の周壁13とを一体に有する。
即ち、本体ケース10の周壁13のうちの一辺部には、コネクタ4の外形に合わせて枠状に拡開した前記開口部2aが形成されている。本体ケース10の上壁12は、開口部2aの上端と連なる高背部12aと、その余の低背部12bとで段付き状をなしている。上壁12の高背部12aは、回路基板3上の前記電子部品のうち背の高い部品(例えば前記コンデンサ等)が収まる高さ寸法に設定されている。上壁12の低背部12bには、Y方向に延びX方向へ並ぶ複数の放熱フィン14が形成されるとともに、呼吸フィルタ15が配設されている。
The main body case 10 is a first housing member on which the circuit board 3 is arranged, and has a substantially rectangular box shape in which one side 3a side of the circuit board 3 is open (see FIG. 4). As shown in FIG. 1, the main body case 10 integrally includes a stepped upper wall 12 and a peripheral wall 13 around the upper wall 12.
That is, the opening 2a is formed on one side of the peripheral wall 13 of the main body case 10 so as to expand in a frame shape according to the outer shape of the connector 4. The upper wall 12 of the main body case 10 has a stepped shape with a high back portion 12a connected to the upper end of the opening 2a and a remaining low back portion 12b. The high-back portion 12a of the upper wall 12 is set to a height dimension in which a tall component (for example, the capacitor or the like) among the electronic components on the circuit board 3 can be accommodated. A plurality of heat radiating fins 14 extending in the Y direction and lining up in the X direction are formed on the low back portion 12b of the upper wall 12, and a breathing filter 15 is arranged.

詳しい図示省略するが、呼吸フィルタ15は、筐体2の内部と外部とを通気させる通気孔の部分に設けられていて、その通気孔における液体の通過を阻止し、且つ気体のみを通過させる。なお、図1の本体ケース10において、開口部2aと高背部12aと放熱フィン14との夫々の上端が略面一(略水平)に揃うように設けられており、当該本体ケース10を上下反転させたとき(図4参照)、当該夫々の上端が下端となって回路基板3を水平に保持した状態となる。 Although not shown in detail, the breathing filter 15 is provided in a portion of a vent hole that ventilates the inside and the outside of the housing 2, blocks the passage of liquid in the vent, and allows only gas to pass through. In the main body case 10 of FIG. 1, the upper ends of the opening 2a, the high back portion 12a, and the heat radiation fin 14 are provided so as to be substantially flush with each other (substantially horizontal), and the main body case 10 is turned upside down. When this is done (see FIG. 4), the upper end of each of them becomes the lower end, and the circuit board 3 is held horizontally.

本体ケース10の周壁13には、X方向の一端側と他端側とに夫々外側へ張出すフランジ部13aが設けられている。図3に示すように、フランジ部13aの4隅部には、ねじ穴9aが設けられている。本体ケース10は、カバー11のフランジ部11bの前記孔に挿通されたねじ9が(図2参照)、フランジ部13aのねじ穴9aに螺挿されるこで、カバー11と接合する。この場合、図1、図2に示すように、本体ケース10とカバー11とが、夫々のフランジ部13a,11bで互いに接合され、組み合わされることにより、本体ケース10の開放面をカバー11で閉塞する。 The peripheral wall 13 of the main body case 10 is provided with flange portions 13a extending outward on one end side and the other end side in the X direction, respectively. As shown in FIG. 3, screw holes 9a are provided at the four corners of the flange portion 13a. The main body case 10 is joined to the cover 11 by screwing the screw 9 inserted into the hole of the flange portion 11b of the cover 11 (see FIG. 2) into the screw hole 9a of the flange portion 13a. In this case, as shown in FIGS. 1 and 2, the main body case 10 and the cover 11 are joined to each other at the flange portions 13a and 11b, respectively, and combined to close the open surface of the main body case 10 with the cover 11. To do.

図3、図4に示すように、本体ケース10における周壁13の内側部分には、その4隅部に位置させて、回路基板3を取付けるための取付部17が夫々設けられている。これら取付部17は、何れも回路基板3を支持する支持部18と、その支持部18に立設された挿通部19とを有する。支持部18及び挿通部19と本体ケース10とは、前記アルミダイキャストにより同じ材料で一体に形成されている。詳しくは後述するように、挿通部19には、回路基板3の取付孔5が挿通された後、弾性部材20が配置される。この弾性部材20は、本体ケース10とカバー11とで回路基板3とともに挟持されるようになっている(図5参照)。 As shown in FIGS. 3 and 4, the inner portion of the peripheral wall 13 in the main body case 10 is provided with mounting portions 17 for mounting the circuit board 3 located at the four corners thereof. Each of these mounting portions 17 has a support portion 18 that supports the circuit board 3 and an insertion portion 19 that is erected on the support portion 18. The support portion 18, the insertion portion 19, and the main body case 10 are integrally formed of the same material by the aluminum die casting. As will be described in detail later, the elastic member 20 is arranged in the insertion portion 19 after the mounting hole 5 of the circuit board 3 is inserted. The elastic member 20 is sandwiched between the main body case 10 and the cover 11 together with the circuit board 3 (see FIG. 5).

なお、図1、図2に示すように、本体ケース10におけるフランジ部13aの張出した部分には、4つの固定部13bが設けられている。電子制御装置1は例えば、車両に対し当該固定部13bで各々ねじ止めされて、底壁11aが略水平となる向きで搭載される(底壁11aが略鉛直となる向きでもよい)。 As shown in FIGS. 1 and 2, four fixing portions 13b are provided on the overhanging portion of the flange portion 13a in the main body case 10. For example, the electronic control device 1 is screwed to the vehicle at the fixing portion 13b and mounted in a direction in which the bottom wall 11a is substantially horizontal (the bottom wall 11a may be in a substantially vertical direction).

続いて、上記した取付部17及び弾性部材20に係る構成ついて、図3〜図5を参照しながら詳述する。ここで、図3は、カバー11の組付け前の状態における本体ケース10と内部の回路基板3を示す底面図である。図4は、図3のIV-IV線に沿う断面図、図5は、カバー11の組付け後の状態における取付部17近傍を拡大して示す断面図である。なお、図4、図5では、本体ケース10乃至電子制御装置1を上下反転させた状態で示しており、同図の上側からカバー11が組付けられるものとする。 Subsequently, the configurations of the mounting portion 17 and the elastic member 20 described above will be described in detail with reference to FIGS. 3 to 5. Here, FIG. 3 is a bottom view showing the main body case 10 and the internal circuit board 3 in a state before the cover 11 is assembled. FIG. 4 is a cross-sectional view taken along the line IV-IV of FIG. 3, and FIG. 5 is an enlarged cross-sectional view showing the vicinity of the mounting portion 17 in the state after the cover 11 is assembled. In addition, in FIGS. 4 and 5, the main body case 10 to the electronic control device 1 are shown upside down, and the cover 11 is assembled from the upper side of the figure.

図4に示すように、取付部17の支持部18は、本体ケース10における周壁13の内側に位置し、Z方向の厚みを持たせたブロック状をなす。図5に示すように、支持部18は、回路基板3における取付孔5の周縁部を、当該基板3の他面3b(前記一面3aとは反対側の面)側から支持する接触面18aを有する。なお、支持部18において挿通部19の周りに図5中、下側へ凹む窪み18bを設けているが、接触面18aは、窪み18bを無くした平坦面としてもよい(後述する図11の平坦面18c参照)。 As shown in FIG. 4, the support portion 18 of the mounting portion 17 is located inside the peripheral wall 13 of the main body case 10 and has a block shape having a thickness in the Z direction. As shown in FIG. 5, the support portion 18 supports a contact surface 18a that supports the peripheral edge portion of the mounting hole 5 in the circuit board 3 from the other surface 3b (the surface opposite to the one surface 3a) side of the substrate 3. Have. In addition, although the support portion 18 is provided with a recess 18b recessed downward in FIG. 5 around the insertion portion 19, the contact surface 18a may be a flat surface without the recess 18b (the flat surface of FIG. 11 described later). See surface 18c).

図5に示すように、挿通部19は、支持部18における接触面18aの内側中央に位置させて、回路基板3の取付孔5に対応するように設けられている。挿通部19は、全体として柱状をなすボスであり、その中心軸線Oの方向(軸方向)がZ方向を指向するように支持部18から延伸している。挿通部19は、厳密には先端側19aの外径寸法Daが基端側19bの外径寸法Dbよりも若干小さく(Db>Da)、その径小部分と径大部分とで段差19cを有する小円柱状をなしている。 As shown in FIG. 5, the insertion portion 19 is located at the center inside the contact surface 18a of the support portion 18 and is provided so as to correspond to the mounting hole 5 of the circuit board 3. The insertion portion 19 is a boss having a columnar shape as a whole, and extends from the support portion 18 so that the direction (axial direction) of the central axis O thereof points in the Z direction. Strictly speaking, the insertion portion 19 has an outer diameter dimension Da of the tip side 19a slightly smaller than the outer diameter dimension Db of the proximal end side 19b (Db> Da), and has a step 19c between the small diameter portion and the large diameter portion. It has a small columnar shape.

この場合、挿通部19は、図5に示すように回路基板3の取付孔5に挿通された状態で、先端側19aが回路基板3の一面3aからZ方向に突出し、その突出寸法Haは、弾性部材20の中空部21の軸方向寸法H1よりも小さくなるように設定されている(Ha<H1)。また、挿通部19の先端側19aの外径寸法Daは、弾性部材20の中空部21の内径寸法D1と略同じである(Da≒D1)。よって、挿通部19の先端側19aは、弾性部材20の中空部21に対して収容可能且つ嵌合可能である。また、挿通部19は、回路基板3の取付孔5を貫通するようにして弾性部材20側へ突起するものといえる。
なお、上記した挿通部19等の寸法は、これに限定するものではなく、挿通部19における段差19cを無くして、径寸法Da,Dbを一定としてもよい(Da=Db)。
In this case, in the state where the insertion portion 19 is inserted into the mounting hole 5 of the circuit board 3 as shown in FIG. 5, the tip end side 19a protrudes from one surface 3a of the circuit board 3 in the Z direction, and the protruding dimension Ha is The hollow portion 21 of the elastic member 20 is set to be smaller than the axial dimension H1 (Ha <H1). Further, the outer diameter dimension Da of the tip end side 19a of the insertion portion 19 is substantially the same as the inner diameter dimension D1 of the hollow portion 21 of the elastic member 20 (Da≈D1). Therefore, the tip end side 19a of the insertion portion 19 can be accommodated and fitted to the hollow portion 21 of the elastic member 20. Further, it can be said that the insertion portion 19 projects toward the elastic member 20 so as to penetrate the mounting hole 5 of the circuit board 3.
The dimensions of the insertion portion 19 and the like described above are not limited to this, and the diameter dimensions Da and Db may be constant by eliminating the step 19c in the insertion portion 19 (Da = Db).

弾性部材20は、例えばゴム材料からなり(シリコン等、他の弾性材料でもよい)、中空状の中空部21と中実状の中実部22とを有する。具体的には、弾性部材20は円柱状をなすとともに、その軸方向における一端側(図5で下側)が開放された中空部21とし、その余の部分つまり他端側から中央にわたる部分を中実部22としている。中空部21は、挿通部19先端側19aを収納可能な空間21aを有する円筒状部分21bを称するものである。中実部22は、その外形において円筒状部分21bと連なる円柱状部分であり、「円柱状部分22」とも称する。 The elastic member 20 is made of, for example, a rubber material (may be another elastic material such as silicon), and has a hollow hollow portion 21 and a solid solid portion 22. Specifically, the elastic member 20 has a columnar shape, and a hollow portion 21 having one end side (lower side in FIG. 5) open in the axial direction thereof is formed, and the remaining portion, that is, a portion extending from the other end side to the center is formed. The solid part is 22. The hollow portion 21 refers to a cylindrical portion 21b having a space 21a capable of accommodating the tip side 19a of the insertion portion 19. The solid portion 22 is a cylindrical portion that is continuous with the cylindrical portion 21b in its outer shape, and is also referred to as a “cylindrical portion 22”.

これにより、弾性部材20は、円筒状部分21bと円柱状部分22とを一体に有し、軸方向に沿う断面が逆「凹」字状をなしている。また、弾性部材20は、その中心軸線と挿通部19の中心軸線Oとが一致するように、挿通部19に対して同軸状に配置される形態をなすものといえる。なお、詳しくは後述するように、弾性部材20は、その中空部21の軸方向寸法H1等を適宜変更してもよく、円筒状部分21bは筒状の部分、円柱状部分22は柱状の部分として形成されていればよい。 As a result, the elastic member 20 has a cylindrical portion 21b and a cylindrical portion 22 integrally, and the cross section along the axial direction has an inverted “concave” shape. Further, it can be said that the elastic member 20 is arranged coaxially with the insertion portion 19 so that the central axis thereof coincides with the central axis O of the insertion portion 19. As will be described in detail later, the elastic member 20 may appropriately change the axial dimension H1 and the like of the hollow portion 21, the cylindrical portion 21b is a cylindrical portion, and the cylindrical portion 22 is a columnar portion. It may be formed as.

図5に示す弾性部材20は、回路基板3とカバー11との間に配置された状態で、若干圧縮され、回路基板3を本体ケース10側へ押圧する。即ち、カバー11の組付け前における、弾性部材20全体の軸方向寸法をH0としたとき(後述の図8参照)、回路基板3の一面3aとカバー11の内面との間の距離L(図5参照)よりも、当該軸方向寸法H0が若干大きくなるように設定されている(H0>L)。 The elastic member 20 shown in FIG. 5 is slightly compressed while being arranged between the circuit board 3 and the cover 11, and presses the circuit board 3 toward the main body case 10. That is, when the axial dimension of the entire elastic member 20 before assembling the cover 11 is H0 (see FIG. 8 described later), the distance L between one surface 3a of the circuit board 3 and the inner surface of the cover 11 (FIG. 8). The axial dimension H0 is set to be slightly larger than (see 5) (H0> L).

弾性部材20の組付けに際して、先ず本体ケース10は、その開放面が上側となるように上下反転させた状態とし(図4参照)、当該本体ケース10に対して、回路基板3を配置しておく。この場合、回路基板3の取付孔5に、挿通部19を基端側19bまで挿通し、回路基板3は、本体ケース10の支持部18上にあるものとする。この状態で、弾性部材20は、その中空部21の空間21aに挿通部19の先端側19aを挿通させるようにして取付けられる(図3〜図5参照)。これにより、弾性部材20は、回路基板3上において挿通部19の先端側19aと嵌合する。 When assembling the elastic member 20, the main body case 10 is first turned upside down so that its open surface is on the upper side (see FIG. 4), and the circuit board 3 is arranged with respect to the main body case 10. deep. In this case, it is assumed that the insertion portion 19 is inserted into the mounting hole 5 of the circuit board 3 up to the base end side 19b, and the circuit board 3 is on the support portion 18 of the main body case 10. In this state, the elastic member 20 is attached so that the tip end side 19a of the insertion portion 19 is inserted into the space 21a of the hollow portion 21 (see FIGS. 3 to 5). As a result, the elastic member 20 fits on the circuit board 3 with the tip end side 19a of the insertion portion 19.

この後、図2に示すように、本体ケース10の開放面側にカバー11が配置され、前記ねじ9により固定される。これにより、回路基板3は、弾性部材20ごと本体ケース10とカバー11との間に収容され、回路基板3に予め組付けられたコネクタ4は、本体ケース10とカバー11との間の開口部2aから露出する。 After that, as shown in FIG. 2, the cover 11 is arranged on the open surface side of the main body case 10 and is fixed by the screw 9. As a result, the circuit board 3 is housed between the main body case 10 and the cover 11 together with the elastic member 20, and the connector 4 pre-assembled to the circuit board 3 is an opening between the main body case 10 and the cover 11. Exposed from 2a.

また、弾性部材20は、本体ケース10とカバー11とで回路基板3とともに挟持されることにより、回路基板3を本体ケース10側へ押圧する。即ち、弾性部材20は、カバー11が取付けられることに伴い当該カバー11により圧縮された状態となる。このため、弾性部材20は、図5における円柱状部分22の上端側がカバー11と隙間無く密接し、円筒状部分21bの下端側が回路基板3と隙間なく密接して、回路基板3をずれないように保持することができる。 Further, the elastic member 20 is sandwiched between the main body case 10 and the cover 11 together with the circuit board 3 to press the circuit board 3 toward the main body case 10. That is, the elastic member 20 is in a state of being compressed by the cover 11 as the cover 11 is attached. Therefore, in the elastic member 20, the upper end side of the cylindrical portion 22 in FIG. 5 is in close contact with the cover 11 without a gap, and the lower end side of the cylindrical portion 21b is in close contact with the circuit board 3 without a gap so that the circuit board 3 does not shift. Can be held in.

続いて、上記構成の作用について、図5と図6(a)〜(c)とを対比しながら説明する。説明の便宜上、図6(a)〜(c)は、本実施形態と異なり中実部22が無いとした場合における弾性部材20´の説明図として用いるものとし、弾性部材20´は、全体として円筒状をなす中空の構造とする。 Subsequently, the operation of the above configuration will be described with reference to FIGS. 5 and 6 (a) to 6 (c). For convenience of explanation, FIGS. 6A to 6C are used as explanatory views of the elastic member 20'when there is no solid portion 22 unlike the present embodiment, and the elastic member 20'is used as a whole. It has a hollow structure with a cylindrical shape.

電子制御装置1の使用時において、例えば車両の走行中の振動等、外部から振動や衝撃が作用したとしても、弾性部材20によって、回路基板3はその平面方向(X方向及びY方向)或いはZ軸方向にずれないように保持される(図5参照)。
この点、図6(a)の弾性部材20´にあっては、電子制御装置1使用時の温度環境変化により、回路基板3をZ方向に押圧する力、つまり当該押圧する力に抗して回路基板3にて当該弾性部材20´との接触部分に発生する反力Faが減殺される。具体的には、図6(b)に符号21a´で示す、弾性部材20´内部の空間は、同図の上側の開放端がカバー11で閉塞され、且つ下側の開放端が回路基板3で閉塞されていることから、高温時には、係る温度上昇により弾性部材20´内部21a´の空気が膨張することに伴い、当該弾性部材20´全体(特には軸方向中央部分)が径方向外側へ膨らむようにして変形する。このため、同図(b)に示す高温時の反力Fbは、図6(a)の常温時乃至通常時の反力Faよりも小さくなり(Fb<Fa)、弾性部材20´で回路基板3を保持する機能が損なわれる虞がある。
When the electronic control device 1 is used, even if vibrations or shocks are applied from the outside such as vibrations while the vehicle is running, the elastic member 20 causes the circuit board 3 to be in the plane direction (X direction and Y direction) or Z. It is held so as not to shift in the axial direction (see FIG. 5).
In this regard, in the elastic member 20'in FIG. 6A, the force that presses the circuit board 3 in the Z direction due to the change in the temperature environment when the electronic control device 1 is used, that is, the pressing force is resisted. The reaction force Fa generated in the contact portion with the elastic member 20'on the circuit board 3 is reduced. Specifically, in the space inside the elastic member 20'indicated by reference numeral 21a' in FIG. 6B, the upper open end of the figure is closed by the cover 11 and the lower open end is the circuit board 3. At high temperatures, the entire elastic member 20'(particularly the central portion in the axial direction) expands radially outward as the air inside the elastic member 20'inside 21a'expands due to the temperature rise. It deforms as if it swells. Therefore, the reaction force Fb at high temperature shown in FIG. 6B is smaller than the reaction force Fa at room temperature to normal time in FIG. 6A (Fb <Fa), and the elastic member 20'is the circuit board. The function of holding 3 may be impaired.

また、図6(c)に示すように、低温時には、係る温度低下により弾性部材20´内部21a´の空気が収縮することに伴い、当該弾性部材20´全体(特には軸方向中央部分)が径方向内側へ窄むようにして変形する。このため、図6(c)に示す低温時の反力Fcも、常温時乃至通常時の反力Faよりも小さくなり(Fc<Fa)、弾性部材20´で回路基板3を保持する機能が損なわれる虞がある。 Further, as shown in FIG. 6C, when the temperature is low, the entire elastic member 20'(especially the central portion in the axial direction) is compressed as the air inside the elastic member 20'inside 21a'contracts due to the temperature drop. It deforms so as to narrow inward in the radial direction. Therefore, the reaction force Fc at low temperature shown in FIG. 6 (c) is also smaller than the reaction force Fa at room temperature to normal time (Fc <Fa), and the elastic member 20'has a function of holding the circuit board 3. It may be damaged.

これに対し、図5に示す弾性部材20は、一端側の部分だけが中空部21で、その軸方向に隣り合う部分が円柱状部分22で非貫通となっている。このため、中空部21である円筒状部分21bにおいて、挿通部19の先端側19aとの間に間隙(同図5の空間21a)を有していても、円柱状部分22により、高温時の間隙の空気膨張に伴う径方向外側への当該円筒状部分21bの変形が抑制され、又、低温時の間隙の空気収縮に伴う径方向内側への当該円筒状部分21bの変形が抑制される。 On the other hand, in the elastic member 20 shown in FIG. 5, only one end side portion is a hollow portion 21, and a portion adjacent in the axial direction thereof is a columnar portion 22 which is non-penetrating. Therefore, even if the cylindrical portion 21b, which is the hollow portion 21, has a gap (space 21a in FIG. 5) between the cylindrical portion 21b and the tip end side 19a of the insertion portion 19, the cylindrical portion 22 causes a high temperature. The deformation of the cylindrical portion 21b in the radial direction due to the air expansion of the gap is suppressed, and the deformation of the cylindrical portion 21b in the radial direction due to the air contraction of the gap at low temperature is suppressed.

このように、弾性部材20において、円柱状部分22である中実部22が補強構造として機能することから、その中実部22はもとより中空部21である円筒状部分21bについても、温度変化による変形が生じ難く、反力Faが落ち難い構成となっている。なお、弾性部材20は、挿通部19の先端側19aとの間隙を狭めるように中空部21の軸方向寸法H1を設定することで、より変形し難いものとすることができる。 As described above, in the elastic member 20, since the solid portion 22 which is the columnar portion 22 functions as a reinforcing structure, not only the solid portion 22 but also the cylindrical portion 21b which is the hollow portion 21 is affected by the temperature change. The structure is such that deformation is unlikely to occur and the reaction force Fa is difficult to drop. The elastic member 20 can be made more difficult to be deformed by setting the axial dimension H1 of the hollow portion 21 so as to narrow the gap between the elastic member 20 and the tip end side 19a.

以上説明したように、本実施形態の電子制御装置1において、弾性部材20は柱状をなすとともに、中実状の中実部22及び中空状の中空部21を有し、その中空部21は、当該弾性部材20の軸方向における一端側にて、挿通部19を収容可能に開放された取付用の第1中空部として形成され、中実部22は、前記軸方向において中空部21と隣り合うように形成されている。 As described above, in the electronic control device 1 of the present embodiment, the elastic member 20 has a columnar shape and has a solid solid portion 22 and a hollow hollow portion 21, and the hollow portion 21 is the hollow portion 21. At one end side of the elastic member 20 in the axial direction, the insertion portion 19 is formed as a first hollow portion for mounting that is open to accommodate the insertion portion 19, and the solid portion 22 is adjacent to the hollow portion 21 in the axial direction. Is formed in.

これによれば、弾性部材20は、挿通部19を収容可能な中空部21を有するものとしても、これと軸方向に隣り合う中実部22によって中空部21を補強することができる。これにより、電子制御装置1使用時の温度環境変化等に起因する弾性部材20の変形が生じ難くなり、弾性部材20により回路基板3を押圧する力(前記反力Fa)の変動を抑制することができ、回路基板3を安定して保持することができる。また、弾性部材20の中空部21に挿通部19を挿通することで、筐体2に対する弾性部材20のずれを防止することができ、総じて弾性部材20により回路基板3を好適に保持することができる。 According to this, even if the elastic member 20 has a hollow portion 21 capable of accommodating the insertion portion 19, the hollow portion 21 can be reinforced by the solid portion 22 adjacent to the hollow portion 21 in the axial direction. As a result, the elastic member 20 is less likely to be deformed due to changes in the temperature environment when the electronic control device 1 is used, and the fluctuation of the force (the reaction force Fa) that presses the circuit board 3 by the elastic member 20 is suppressed. The circuit board 3 can be stably held. Further, by inserting the insertion portion 19 into the hollow portion 21 of the elastic member 20, it is possible to prevent the elastic member 20 from being displaced with respect to the housing 2, and it is possible to preferably hold the circuit board 3 by the elastic member 20 as a whole. it can.

挿通部19は、本体ケース10に設けられるとともに、回路基板3に形成された取付孔5へ挿通され、弾性部材20は、取付孔5に挿通された挿通部19を、中空部21に収容するようにして配置されている。
これによれば、挿通部19を、回路基板3の取付孔5と弾性部材20の中空部21とに挿通することにより、両者3,20のずれを防止することができ、又、両者3,20の取付け構造の簡単化を図りうる。
The insertion portion 19 is provided in the main body case 10 and is inserted into the mounting hole 5 formed in the circuit board 3, and the elastic member 20 accommodates the insertion portion 19 inserted in the mounting hole 5 in the hollow portion 21. It is arranged in this way.
According to this, by inserting the insertion portion 19 into the mounting hole 5 of the circuit board 3 and the hollow portion 21 of the elastic member 20, it is possible to prevent the two 3 and 20 from being misaligned, and both 3 and 20 can be prevented from being displaced. The mounting structure of 20 can be simplified.

<その他の実施形態>
図7〜図11は、本発明の第2〜第6実施形態を示している。以下では、既述した実施形態と実質的に異なる点について述べることとする。
<Other Embodiments>
7 to 11 show the second to sixth embodiments of the present invention. In the following, the points substantially different from the above-described embodiments will be described.

図7に示す第2実施形態の弾性部材25は、第1実施形態の弾性部材20と次の点で相違する。即ち、弾性部材25は、軸方向の他端側を開放するように形成された中空部26(第2中空部)を有する。他端側の中空部26は、弾性部材25の中心Cを対称点として、一端側の中空部21と対称形状をなすように形成されている。それ故、他端側の中空部26は、その軸方向寸法H2が一端側の中空部21の軸方向寸法H1と同じで(H2=H1)、一端側の中空部21と同じ寸法形状の空間21aを有する円筒状部分21bとなっている。 The elastic member 25 of the second embodiment shown in FIG. 7 differs from the elastic member 20 of the first embodiment in the following points. That is, the elastic member 25 has a hollow portion 26 (second hollow portion) formed so as to open the other end side in the axial direction. The hollow portion 26 on the other end side is formed so as to form a symmetrical shape with the hollow portion 21 on the one end side with the center C of the elastic member 25 as a point of symmetry. Therefore, the hollow portion 26 on the other end side has the same axial dimension H2 as the axial dimension H1 of the hollow portion 21 on the one end side (H2 = H1), and has the same dimension and shape as the hollow portion 21 on the one end side. It is a cylindrical portion 21b having 21a.

これにより、弾性部材25は、一端側の中空部21と他端側の中空部26との夫々に対し、軸方向に隣り合う中実部27でもって、両中空部21,26を補強する構成とされている。また、弾性部材25の組付けの際、同図7の如く一端側の中空部21に挿通部19を挿通させるようにして配置することができる一方、上下に180度向きを変えて、他端側の中空部26に挿通部19を挿通させるようにして配置することもできる(図示略)。 As a result, the elastic member 25 reinforces both the hollow portions 21 and 26 with the solid portions 27 adjacent to each other in the axial direction with respect to the hollow portion 21 on the one end side and the hollow portion 26 on the other end side. It is said that. Further, when assembling the elastic member 25, the insertion portion 19 can be arranged so as to be inserted into the hollow portion 21 on one end side as shown in FIG. 7, while the other end is turned 180 degrees up and down. It is also possible to arrange the insertion portion 19 so as to be inserted through the hollow portion 26 on the side (not shown).

このように、本第2実施形態の弾性部材25は、その軸方向の他端側に第2中空部として、挿通部19を収容可能に開放された取付用の中空部26を有する。これによれば、弾性部材25における両中空部21,26の何れの側からでも、その両側の向きを識別することなく挿通部19に挿通させることができ、組付け性を向上させることができる。また、弾性部材25の軸方向において中空部21,26各々と隣り合う中実部27により、当該弾性部材25の変形を抑制することができる等、第1実施形態と同様の効果を奏する。
なお、以下では複数の中空部21,26を区別するために、中空部21を「第1中空部21」、中空部26を「第2中空部26」とも称する。
As described above, the elastic member 25 of the second embodiment has a hollow portion 26 for mounting which is open so as to accommodate the insertion portion 19 as the second hollow portion on the other end side in the axial direction thereof. According to this, it is possible to insert the elastic member 25 into the insertion portion 19 from either side of both hollow portions 21 and 26 without distinguishing the directions of both sides thereof, and it is possible to improve the assembling property. .. Further, the solid portion 27 adjacent to each of the hollow portions 21 and 26 in the axial direction of the elastic member 25 can suppress the deformation of the elastic member 25, and the same effect as that of the first embodiment is obtained.
In the following, in order to distinguish the plurality of hollow portions 21 and 26, the hollow portion 21 is also referred to as a “first hollow portion 21” and the hollow portion 26 is also referred to as a “second hollow portion 26”.

図8に示す第3実施形態の弾性部材30は、第2実施形態の弾性部材25と次の点で相違する。即ち、弾性部材30の中実部27には、軸方向たるZ方向に貫通する貫通孔31が設けられている。貫通孔31は、比較的径寸法が小さい小孔であり、中実部27の中央にあって、中心軸線Oに沿うように延びている。 The elastic member 30 of the third embodiment shown in FIG. 8 differs from the elastic member 25 of the second embodiment in the following points. That is, the solid portion 27 of the elastic member 30 is provided with a through hole 31 penetrating in the Z direction, which is the axial direction. The through hole 31 is a small hole having a relatively small diameter, is located in the center of the solid portion 27, and extends along the central axis O.

これにより、貫通孔31は、弾性部材30において第1中空部21と第2中空部26とを連通させる。このため、弾性部材30の組付けの際、その円筒状部分21b内周面が挿通部19外周面に対して隙間なく嵌合するものとしても、当該円筒状部分21b内に挿通部19が挿通されることに伴い、当該円筒状部分21bと挿通部19との間の空気(同図8の先端側19a空間21aの空気)は、貫通孔31を通して他端側の中空部26に排出される。なお、図8では、係る空気の排出方向を矢印33で表しており、弾性部材30の組付け後に被せられるカバー11の図示を省略している。 As a result, the through hole 31 communicates the first hollow portion 21 and the second hollow portion 26 in the elastic member 30. Therefore, when assembling the elastic member 30, even if the inner peripheral surface of the cylindrical portion 21b fits tightly against the outer peripheral surface of the insertion portion 19, the insertion portion 19 is inserted into the cylindrical portion 21b. As a result, the air between the cylindrical portion 21b and the insertion portion 19 (air in the space 21a on the tip side 19a in FIG. 8) is discharged to the hollow portion 26 on the other end side through the through hole 31. .. In FIG. 8, the discharge direction of the air is indicated by an arrow 33, and the cover 11 to be covered after the elastic member 30 is assembled is not shown.

このように、本第3実施形態の弾性部材30において、中実部27を軸方向へ貫通する貫通孔31を設け、一端側の第1中空部21を貫通孔31を介して他端側(つまり第2中空部26側)へ連通させた構成としている。これによれば、弾性部材30を組付ける際、その第1中空部21と挿通部19との間の空気を貫通孔31を通して排気することができ、弾性部材30を回路基板3に確実に接触させることができる。よって、弾性部材30によって、より確実に回路基板3を保持することができる。 As described above, in the elastic member 30 of the third embodiment, the through hole 31 that penetrates the solid portion 27 in the axial direction is provided, and the first hollow portion 21 on one end side is passed through the through hole 31 to the other end side ( That is, it is configured to communicate with the second hollow portion 26 side). According to this, when the elastic member 30 is assembled, the air between the first hollow portion 21 and the insertion portion 19 can be exhausted through the through hole 31, and the elastic member 30 can be reliably contacted with the circuit board 3. Can be made to. Therefore, the elastic member 30 can hold the circuit board 3 more reliably.

なお、図示は省略するが、第1実施形態の弾性部材20において、中実部22を軸方向に貫通する貫通孔を設け、一端側の第1中空部21を当該貫通孔を介して他端側へ連通させるように構成してもよい。当該貫通孔によっても、第3実施形態の貫通孔31と同様、排気孔として機能させることができる。 Although not shown, the elastic member 20 of the first embodiment is provided with a through hole that penetrates the solid portion 22 in the axial direction, and the first hollow portion 21 on one end side is provided at the other end through the through hole. It may be configured to communicate with the side. The through hole can also function as an exhaust hole as in the through hole 31 of the third embodiment.

図9に示す第4実施形態の弾性部材40は、第2実施形態の弾性部材25と次の点で相違する。即ち、弾性部材40には、第1中空部21と第2中空部26との間に位置させて、中空部41(「第3中空部41」とも称する)が設けられている。第3中空部41内には、他の中空部21,26内の空間21aと同じ径寸法に設定された空間41aを有する。また、図9では、第3中空部41の軸方向寸法H3を、他の中空部21,26の軸方向寸法H1,H2と異ならせているが、少なくとも各中空部21,26,41の軸方向寸法H1,H2,H3のうち両端側の軸方向寸法H1,H2が、挿通部19の先端側19aを収納可能な大きさに設定されていればよい。 The elastic member 40 of the fourth embodiment shown in FIG. 9 differs from the elastic member 25 of the second embodiment in the following points. That is, the elastic member 40 is provided with a hollow portion 41 (also referred to as a "third hollow portion 41") located between the first hollow portion 21 and the second hollow portion 26. The third hollow portion 41 has a space 41a set to have the same diameter as the space 21a in the other hollow portions 21 and 26. Further, in FIG. 9, the axial dimension H3 of the third hollow portion 41 is different from the axial dimensions H1 and H2 of the other hollow portions 21, 26, but at least the axes of the hollow portions 21, 26, 41. Of the directional dimensions H1, H2, H3, the axial dimensions H1 and H2 on both end sides may be set to a size that can accommodate the tip end side 19a of the insertion portion 19.

第3中空部41は、これの軸方向両側に位置する第1中実部27aと第2中実部27bとによって閉塞され、仕切られている。これにより、弾性部材40は、一端側(図9で下側)から順に第1中空部21、第1中実部27a、第3中空部41、第2中実部27b、第2中空部26が軸方向に並び、各中空部21,26,41を、一対の中実部27a,27bによって補強する構成としている。 The third hollow portion 41 is closed and partitioned by a first solid portion 27a and a second solid portion 27b located on both sides in the axial direction thereof. As a result, the elastic member 40 has the first hollow portion 21, the first solid portion 27a, the third hollow portion 41, the second solid portion 27b, and the second hollow portion 26 in order from one end side (lower side in FIG. 9). Are arranged in the axial direction, and each hollow portion 21, 26, 41 is reinforced by a pair of solid portions 27a, 27b.

このように、本第4実施形態の弾性部材40では、一端側の第1中空部21と他端側の第2中空部26との間に位置させて、第3中空部41を設ける構成とした。これによれば、弾性部材40の使用材料(上記したゴム材料等)を少なくして材料費を低減でき、又、複数の中実部27a,27bにより各中空部21,26,41の変形を抑制することができる。 As described above, in the elastic member 40 of the fourth embodiment, the third hollow portion 41 is provided so as to be positioned between the first hollow portion 21 on one end side and the second hollow portion 26 on the other end side. did. According to this, the material used for the elastic member 40 (the above-mentioned rubber material, etc.) can be reduced to reduce the material cost, and the plurality of solid portions 27a and 27b deform the hollow portions 21, 26, 41. It can be suppressed.

図10に示す第5実施形態の弾性部材50は、第1中実部27aに第1貫通孔31aを設けるとともに、第2中実部27bに第2貫通孔31bを設けた点で、第4実施形態の弾性部材40と相違する。この場合、第1貫通孔31aは、図8の貫通孔31と同様、比較的径寸法が小さい小孔であり、第1中実部27aの中央を軸方向に貫通する。同様に、第2貫通孔31bは、第2中実部27bの中央を軸方向に貫通する小孔である。 The elastic member 50 of the fifth embodiment shown in FIG. 10 has a fourth through hole 31a in the first solid portion 27a and a second through hole 31b in the second solid portion 27b. It is different from the elastic member 40 of the embodiment. In this case, the first through hole 31a is a small hole having a relatively small diameter, like the through hole 31 in FIG. 8, and penetrates the center of the first solid portion 27a in the axial direction. Similarly, the second through hole 31b is a small hole that axially penetrates the center of the second solid portion 27b.

このように、本第5実施形態の弾性部材50において、中実部27a,27bを軸方向へ貫通する貫通孔は、第1中空部21と第3中空部41とを連通させる第1貫通孔31aと、第3中空部41と第2中空部26とを連通させる第2貫通孔31bとで構成されている。
これによれば、例えば弾性部材50における第1中空部21の側から、挿通部19に挿通させるとき、その第1中空部21と挿通部19との間の空気を各貫通孔31a,31bを通して排気することができる。なお、図10では、係る空気の排出方向を矢印53で表しており、弾性部材50の組付け後に被せられるカバー11の図示を省略している。また、弾性部材50における第2中空部26の側からも、挿通部19に挿通させることができ、この場合も、第2中空部26と挿通部19との間の空気を各貫通孔31b,31aを通して排気することができる。
As described above, in the elastic member 50 of the fifth embodiment, the through hole that penetrates the solid portions 27a and 27b in the axial direction is the first through hole that communicates the first hollow portion 21 and the third hollow portion 41. It is composed of 31a and a second through hole 31b that communicates the third hollow portion 41 and the second hollow portion 26.
According to this, for example, when the elastic member 50 is inserted into the insertion portion 19 from the side of the first hollow portion 21, air between the first hollow portion 21 and the insertion portion 19 is passed through the through holes 31a and 31b. Can be exhausted. In FIG. 10, the discharge direction of the air is indicated by an arrow 53, and the cover 11 to be covered after the elastic member 50 is assembled is not shown. Further, the elastic member 50 can also be inserted into the insertion portion 19 from the side of the second hollow portion 26, and in this case as well, the air between the second hollow portion 26 and the insertion portion 19 can be passed through the through holes 31b, respectively. It can be exhausted through 31a.

上記した筐体2においては、本体ケース10とカバー11との何れか一方に、弾性部材側へ突起する挿通部が設けられていればよく、図11に示す第6実施形態では、カバー11に挿通部60を設けるものとする。また、本第6実施形態では、本体ケース10において回路基板3を支持する支持部18を、挿通部19を省略した平坦面18cとし、同図11に例示するように、第1実施形態の弾性部材20を用いて回路基板3を保持するものとする。 In the housing 2 described above, it is sufficient that either one of the main body case 10 and the cover 11 is provided with an insertion portion protruding toward the elastic member side, and in the sixth embodiment shown in FIG. 11, the cover 11 may be provided. The insertion portion 60 shall be provided. Further, in the sixth embodiment, the support portion 18 that supports the circuit board 3 in the main body case 10 is a flat surface 18c in which the insertion portion 19 is omitted, and as illustrated in FIG. 11, the elasticity of the first embodiment. It is assumed that the circuit board 3 is held by using the member 20.

具体的には、本体ケース10の支持部18には、回路基板3の他面3bを支持する平坦面18cが形成されており、回路基板3には取付孔5が設けられていない。一方、カバー11における、支持部18の平坦面18cと対応する位置には、その平坦面18cに向けてZ方向に突起する挿通部60を一体に有する。
挿通部60は、図5等で示した挿通部19と同様、弾性部材20の中空部21に嵌合する円柱状をなしているが、先端側と基端側とで径寸法を同じくしている(図5の段差19cが無いものとしている)。なお、挿通部60は、弾性部材20の中空部21に収容可能な寸法形状であればよく、中空部21である円筒状部分21b内周面と、当該挿通部60外周面との間に間隙を設けるようにしてもよい(図示略)。
Specifically, the support portion 18 of the main body case 10 is formed with a flat surface 18c that supports the other surface 3b of the circuit board 3, and the circuit board 3 is not provided with a mounting hole 5. On the other hand, at a position of the cover 11 corresponding to the flat surface 18c of the support portion 18, an insertion portion 60 projecting in the Z direction toward the flat surface 18c is integrally provided.
The insertion portion 60 has a columnar shape that fits into the hollow portion 21 of the elastic member 20, similar to the insertion portion 19 shown in FIG. 5, but has the same diameter dimension on the tip end side and the base end side. (It is assumed that there is no step 19c in FIG. 5). The insertion portion 60 may have a size and shape that can be accommodated in the hollow portion 21 of the elastic member 20, and there is a gap between the inner peripheral surface of the cylindrical portion 21b, which is the hollow portion 21, and the outer peripheral surface of the insertion portion 60. May be provided (not shown).

このように、本第6実施形態の挿通部60はカバー11設けられ、弾性部材20は、その挿通部60を中空部21に収容するようにして配置されている。
これによれば、弾性部材20の中空部21にカバー11の挿通部60が挿通されるため、カバー11に対する弾性部材20のずれ、ひいては回路基板3に対する弾性部材20のずれを防止することができる。また、中実部22により、弾性部材20の変形を抑制することができる等、第1実施形態と同様の効果を奏する。
As described above, the insertion portion 60 of the sixth embodiment is provided with the cover 11, and the elastic member 20 is arranged so as to accommodate the insertion portion 60 in the hollow portion 21.
According to this, since the insertion portion 60 of the cover 11 is inserted into the hollow portion 21 of the elastic member 20, it is possible to prevent the elastic member 20 from being displaced from the cover 11 and the elastic member 20 from being displaced from the circuit board 3. .. In addition, the solid portion 22 can suppress the deformation of the elastic member 20, and has the same effect as that of the first embodiment.

本発明は上記し且つ図面に示した各実施形態に限定されるものではなく、上記した各実施形態あるいは変形例を組み合わせたり、構成の一部を省略する等、適宜変更して実施し得るものである。
図11に示した第6実施形態のカバー11の挿通部60に対して、弾性部材20に代えて、他の弾性部材25,30,40,50の何れかを配置するようにしてもよい。例えば、図7の弾性部材25を用いた場合、カバー11の挿通部60に対して、両中空部21,26の何れの側からでも、その両側の向きを識別することなく挿通させることができる等、上記した実施形態と同様の効果を奏する。
The present invention is not limited to the above-described embodiments and the above-described embodiments, and can be appropriately modified and implemented by combining the above-mentioned embodiments or modifications, omitting a part of the configuration, and the like. Is.
Any of the other elastic members 25, 30, 40, and 50 may be arranged in place of the elastic member 20 with respect to the insertion portion 60 of the cover 11 of the sixth embodiment shown in FIG. For example, when the elastic member 25 of FIG. 7 is used, it can be inserted into the insertion portion 60 of the cover 11 from either side of both hollow portions 21 and 26 without distinguishing the directions of both sides thereof. Etc., the same effect as that of the above-described embodiment is obtained.

本開示は、実施例(実施形態)に準拠して記述されたが、本開示は当該実施例や構造に限定されるものではないと理解される。本開示は、様々な変形例や均等範囲内の変形をも包含する。加えて、様々な組み合わせや形態、更には、それらに一要素のみ、それ以上、あるいはそれ以下、を含む他の組み合わせや形態をも、本開示の範疇や思想範囲に入るものである。 Although this disclosure has been described in accordance with an Example (Embodiment), it is understood that the present disclosure is not limited to that Example or structure. The present disclosure also includes various modifications and modifications within an equal range. In addition, various combinations and forms, as well as other combinations and forms that include only one element, more, or less, are also within the scope of the present disclosure.

図面中、1…電子制御装置、2…筐体、3…回路基板、5…取付孔、10…本体ケース(第1筐体部材)、11…カバー(第2筐体部材)、19…挿通部、20…弾性部材、21…中空部(第1中空部)、22…中実部、25…弾性部材、26…中空部(第2中空部)、27,27a,27b…中実部、30…弾性部材、31,31a,31b…貫通孔、40…弾性部材、50…弾性部材、60…挿通部。 In the drawing, 1 ... electronic control device, 2 ... housing, 3 ... circuit board, 5 ... mounting hole, 10 ... main body case (first housing member), 11 ... cover (second housing member), 19 ... insertion Part, 20 ... Elastic member, 21 ... Hollow part (first hollow part), 22 ... Solid part, 25 ... Elastic member, 26 ... Hollow part (second hollow part), 27, 27a, 27b ... Solid part, 30 ... Elastic member, 31, 31a, 31b ... Through hole, 40 ... Elastic member, 50 ... Elastic member, 60 ... Insertion portion.

Claims (7)

電子部品が実装された回路基板(3)と、
内部に前記回路基板を収容する筐体(2)として相互に組み合わされる一対の筐体部材であって、前記回路基板が配置される第1筐体部材(10)、及び前記回路基板を覆うようにして前記第1筺体部材と組み合わされる第2筐体部材(11)と、
前記回路基板と前記第2筺体部材との間に配置され、前記第1筺体部材と前記第2筺体部材とで前記回路基板とともに挟持されることにより、前記回路基板を前記第1筺体部材側へ押圧する弾性部材(20,25,30,40,50)と、を備え、
前記第1筐体部材と前記第2筺体部材との何れか一方に、前記弾性部材側へ突起する挿通部(19,60)が設けられ、
前記弾性部材は柱状をなすとともに、中実状の中実部(22,27,27a,27b)及び中空状の中空部(21,26,41)を有し、
前記中空部は、当該弾性部材の軸方向における一端側にて、前記挿通部を収容可能に開放された取付用の第1中空部(21)として形成され、前記中実部は、前記軸方向において前記中空部と隣り合うように形成されている電子制御装置。
Circuit board (3) on which electronic components are mounted and
A pair of housing members that are mutually combined as a housing (2) for accommodating the circuit board, and covers the first housing member (10) on which the circuit board is arranged and the circuit board. The second housing member (11) to be combined with the first housing member,
The circuit board is arranged between the circuit board and the second housing member, and is sandwiched between the first housing member and the second housing member together with the circuit board, whereby the circuit board is moved to the first housing member side. With elastic members (20, 25, 30, 40, 50) to press,
An insertion portion (19, 60) projecting toward the elastic member is provided on either one of the first housing member and the second housing member.
The elastic member has a columnar shape and has a solid solid portion (22, 27, 27a, 27b) and a hollow hollow portion (21, 26, 41).
The hollow portion is formed as a first hollow portion (21) for mounting that is open so as to accommodate the insertion portion on one end side in the axial direction of the elastic member, and the solid portion is formed in the axial direction. An electronic control device formed so as to be adjacent to the hollow portion in the above.
前記挿通部は、前記第1筐体部材に設けられるとともに、前記回路基板に形成された取付孔(5)へ挿通され、
前記弾性部材は、前記取付孔に挿通された前記挿通部を、前記第1中空部に収容するようにして配置されている請求項1記載の電子制御装置。
The insertion portion is provided in the first housing member and is inserted into a mounting hole (5) formed in the circuit board.
The electronic control device according to claim 1, wherein the elastic member is arranged so as to accommodate the insertion portion inserted through the mounting hole in the first hollow portion.
前記挿通部は、前記第2筐体部材に設けられ、
前記弾性部材は、前記挿通部を、前記第1中空部に収容するようにして配置されている請求項1記載の電子制御装置。
The insertion portion is provided in the second housing member and is provided.
The electronic control device according to claim 1, wherein the elastic member is arranged so as to accommodate the insertion portion in the first hollow portion.
前記弾性部材における軸方向の他端側に、前記挿通部を収容可能に開放された取付用の第2中空部(26)を有する請求項1から3の何れか一項記載の電子制御装置。 The electronic control device according to any one of claims 1 to 3, further comprising a second hollow portion (26) for mounting that is open so as to accommodate the insertion portion on the other end side in the axial direction of the elastic member. 前記弾性部材において、前記中実部を前記軸方向へ貫通する貫通孔(31)を設け、一端側の前記第1中空部を前記貫通孔を介して他端側へ連通させた請求項1から4の何れか一項記載の電子制御装置。 According to claim 1, the elastic member is provided with a through hole (31) that penetrates the solid portion in the axial direction, and the first hollow portion on one end side is communicated to the other end side through the through hole. The electronic control device according to any one of 4. 前記弾性部材において、一端側の前記1中空部と他端側の前記第2中空部との間に位置させて、第3中空部(41)を有する請求項4記載の電子制御装置。 The electronic control device according to claim 4, wherein the elastic member has a third hollow portion (41) located between the one hollow portion on one end side and the second hollow portion on the other end side. 前記弾性部材において、前記中実部を前記軸方向へ貫通する貫通孔を、前記第1中空部と前記第3中空部とを連通させる第1貫通孔(31a)と、前記第3中空部と前記第2中空部とを連通させる第2貫通孔(31b)とで構成した請求項6記載の電子制御装置。
In the elastic member, a through hole (31a) for communicating the first hollow portion and the third hollow portion with a through hole penetrating the solid portion in the axial direction, and the third hollow portion. The electronic control device according to claim 6, further comprising a second through hole (31b) that communicates with the second hollow portion.
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JP7075514B1 (en) * 2020-12-30 2022-05-25 イントップス カンパニー,リミテッド Simultaneous heating and light emitting function radome structure

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