JP6937649B2 - Shock absorbing member and shock absorbing structure using it - Google Patents

Shock absorbing member and shock absorbing structure using it Download PDF

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JP6937649B2
JP6937649B2 JP2017189259A JP2017189259A JP6937649B2 JP 6937649 B2 JP6937649 B2 JP 6937649B2 JP 2017189259 A JP2017189259 A JP 2017189259A JP 2017189259 A JP2017189259 A JP 2017189259A JP 6937649 B2 JP6937649 B2 JP 6937649B2
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shock absorbing
base member
hollow portion
hollow
vertical wall
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JP2019065892A (en
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巧 五之治
巧 五之治
川口　聡
聡 川口
浩之 初見
浩之 初見
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Aisin Keikinzoku Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
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  • Mechanical Engineering (AREA)
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  • Body Structure For Vehicles (AREA)

Description

本発明は、自動車に電池モジュール等の駆動電源や、高電圧部品等を搭載する際にこれらを保護するための衝撃吸収部材及びそれを用いた衝撃吸収構造体に関する。 The present invention relates to a shock absorbing member for protecting a drive power source such as a battery module, a high voltage component, or the like in an automobile, and a shock absorbing structure using the shock absorbing member.

電気自動車やハイブリッド自動車の分野においては、駆動電源用に電池モジュール等のバッテリー及びそれらを制御するための高電圧部品等が必要であり、各種取付部材を用いて車両側に取り付けることが検討されている。
この場合に、これらのバッテリーや高電圧部品を外部からの衝撃から保護する必要がある。
例えば特許文献１には、バッテリーを搭載するフレーム部材に脆弱部を設けた技術を開示する。
しかし、同公報に開示するフレーム部材の構造にあっては、脆弱部の変形を超える荷重には対応ができない問題があり、また脆弱部に水平方向から入力される荷重を吸収できても、斜め上方又は斜め下方からの衝撃に対しては脆弱部が変形されることなく、バッテリー等に衝撃が直接的に伝達されてしまう恐れがある。 In the field of electric vehicles and hybrid vehicles, batteries such as battery modules and high-voltage parts for controlling them are required for the drive power source, and it is considered to mount them on the vehicle side using various mounting members. There is.
In this case, it is necessary to protect these batteries and high-voltage components from external impact.
For example, Patent Document 1 discloses a technique in which a fragile portion is provided in a frame member on which a battery is mounted.
However, the structure of the frame member disclosed in the same publication has a problem that it cannot cope with a load exceeding the deformation of the fragile portion, and even if the load input from the horizontal direction to the fragile portion can be absorbed, it is oblique. The fragile portion may not be deformed by an impact from above or diagonally below, and the impact may be directly transmitted to the battery or the like.

特開２０１５−３９８９０号公報JP-A-2015-39890

本発明は、外部からの衝撃に対して保護効果が大きい衝撃吸収部材及びそれを用いた衝撃吸収構造体の提供を目的とする。 An object of the present invention is to provide a shock absorbing member having a large protective effect against an external shock and a shock absorbing structure using the shock absorbing member.

本発明に係る衝撃吸収部材は、基部材の端部に取り付ける衝撃吸収部材であって、前記衝撃吸収部材は前記基部材と水平方向に配置した中空部と、前記中空部の上下方向の一方又は両方に配置した縦壁部と、前記中空部と縦壁部とを斜めに繋いだ斜めリブを有することを特徴とする。 The shock absorbing member according to the present invention is a shock absorbing member attached to an end portion of the base member, and the shock absorbing member is a hollow portion arranged horizontally with the base member and one of the hollow portions in the vertical direction or one of them in the vertical direction. It is characterized by having a vertical wall portion arranged on both sides and an oblique rib that diagonally connects the hollow portion and the vertical wall portion.

ここで基部材とは、電池モジュール等の電源部や高電圧部品等を車両に取り付けるための部材をいう。
取付構造に制限はなく、基部材の上に積載するように搭載する方法のみならず、下側に吊り下げるように取り付ける等、各種態様に対応できる。 Here, the base member refers to a member for attaching a power supply unit such as a battery module, a high voltage component, or the like to a vehicle.
There is no limitation on the mounting structure, and it can be mounted not only by mounting it on the base member but also by hanging it on the lower side.

また、本発明において中空部の上下方向の一方又は両方に配置した縦壁部とは、中空部の基部材の取付基部側又は中空部の先端側、さらには中空部の上面又は下面の途中から上方に向けて立設したもの、下方に向けて垂下したもの、あるいはその両方を設けたもの、いずれでもよい。 Further, in the present invention, the vertical wall portions arranged in one or both of the vertical directions of the hollow portion are from the mounting base side of the base member of the hollow portion, the tip end side of the hollow portion, and the middle of the upper surface or the lower surface of the hollow portion. It may be erected upward, hung downward, or both.

本発明において、中空部は基部材の端部に取り付けるための上下一対のフランジ部を有するのが好ましい。
このようにすると、上下一対のフランジ部の間に基部材の端部を差し込むように、連結することができる。 In the present invention, the hollow portion preferably has a pair of upper and lower flange portions for attaching to the end portion of the base member.
In this way, the end portions of the base member can be connected so as to be inserted between the pair of upper and lower flange portions.

本発明に係る衝撃吸収部材は、基部材に入力される衝撃から保護したい部位及び方向に向けて取り付けることができ、基部材の形状や構造にも制限されない。
例えば、上記衝撃吸収部材を基部材の両側の端部に対して取り付けた衝撃吸収構造体にすることができる。
この場合に、基部材は前記両側の衝撃吸収部材の対向方向と直交する方向の断面が中空断面形状であると、基部材の衝撃保護効果も高くなる。 The shock absorbing member according to the present invention can be attached toward a portion and a direction to be protected from an impact input to the base member, and is not limited to the shape and structure of the base member.
For example, the shock absorbing member can be a shock absorbing structure attached to both ends of the base member.
In this case, if the cross section of the base member in the direction orthogonal to the opposite direction of the shock absorbing members on both sides has a hollow cross-sectional shape, the impact protection effect of the base member is also enhanced.

本発明に係る衝撃吸収部材の衝撃吸収変形の詳細は後述するが、基部材に向けて水平方向からの衝撃に対しては、中空部が梁として作用する。
例えば、上方に立設した縦壁と、中空部とを斜めリブにて繋ぐように連結した例で説明すると、中空部に上方から斜めに入力された衝撃は、斜めリブが引張るように吸収し、中空部の下側から斜めに入力された衝撃は、斜めリブが支えるようにして吸収することになるので、衝撃の入力方向を問わず、その保護効果が高い。
なお、詳細は後述する。 The details of the impact absorption deformation of the impact absorption member according to the present invention will be described later, but the hollow portion acts as a beam in response to an impact from the horizontal direction toward the base member.
For example, to explain an example in which a vertical wall erected above and a hollow portion are connected so as to be connected by diagonal ribs, an impact diagonally input to the hollow portion from above is absorbed so that the diagonal ribs pull. Since the impact input obliquely from the lower side of the hollow portion is absorbed by being supported by the oblique ribs, the protective effect is high regardless of the impact input direction.
The details will be described later.

（ａ）は本発明に係る衝撃吸収部材を用いた衝撃吸収構造体の例を示し、（ｂ）はその分解図を示す。(A) shows an example of a shock absorbing structure using a shock absorbing member according to the present invention, and (b) shows an exploded view thereof. （ａ）は平面図、（ｂ）はＡ−Ａ線断面端面図を示す。(A) is a plan view, and (b) is a cross-sectional end view taken along the line AA. （ａ）〜（ｃ）は衝撃の吸収作用の説明図である。(A) to (c) are explanatory views of the shock absorbing action. （ａ）は上側にのみ斜めリブを設けた例を示し、（ｂ），（ｃ）はその衝撃吸収例を示す。(A) shows an example in which an oblique rib is provided only on the upper side, and (b) and (c) show an example of shock absorption thereof. （ａ），（ｂ）は斜めリブの変形例を示す。(A) and (b) show deformation examples of diagonal ribs. 斜めリブを有しない場合の変形説明図である。It is a deformation explanatory drawing in the case which does not have an oblique rib.

本発明に係る衝撃吸収部材及び衝撃吸収構造体の構造例を以下図に基づいて説明する。
図１，図２に実施例１を示す。
基部材１０の両側の端部に衝撃吸収部材２０を連結した例になっている。
基部材１０は、電池モジュールや高電圧部品を搭載するためのものである。
本実施例は基部材１０がパネル状になっているが、フレーム枠状であってもよく、構造に制限はない。
基部材１０は、上面パネル１１と下面パネル１２のサイドを縦リブ１３ａ，１３ｂで連結し、中央部を中リブ１３ｃで連結した中空断面形状の例になっていて、両側のサイド部に車両に固定するための固定部１５及びこれに固定孔１５ａを設けてある。 Structural examples of the shock absorbing member and the shock absorbing structure according to the present invention will be described below with reference to the drawings.
1 and 2 show Example 1.
This is an example in which the shock absorbing member 20 is connected to both end portions of the base member 10.
The base member 10 is for mounting a battery module and high-voltage components.
In this embodiment, the base member 10 has a panel shape, but it may have a frame shape, and the structure is not limited.
The base member 10 is an example of a hollow cross-sectional shape in which the sides of the upper surface panel 11 and the lower surface panel 12 are connected by vertical ribs 13a and 13b and the central portion is connected by middle ribs 13c. A fixing portion 15 for fixing and a fixing hole 15a are provided in the fixing portion 15.

基部材１０に対して、衝撃吸収部材２０の取付位置は、外部からの衝撃を吸収したい方向に合わせて取り付ければよく、例えば基部材１０を車両に取り付けた際に、車両の前方側と後方側に一対の衝撃吸収部材２０，２０が位置するようにしてもよい。
また、一方の衝撃吸収部材のみを取り付ける態様であってもよい。 The shock absorbing member 20 may be mounted on the base member 10 in the direction in which the shock from the outside is desired to be absorbed. For example, when the base member 10 is mounted on the vehicle, the front side and the rear side of the vehicle are mounted. A pair of shock absorbing members 20, 20 may be located at the center.
Further, the mode may be such that only one of the shock absorbing members is attached.

衝撃吸収部材２０は、基部材１０の水平方向に位置する中空部２１と、この中空部２１に連結した上方側の縦壁部２２、下方側の縦壁部２３を有する。
上方側の縦壁部２２は、中空部２１と斜めに繋ぐように連結した斜めリブ２４を有する。
下方側に垂下した縦壁部２３は、中空部２１と斜めに繋いだ斜めリブ２５を有する。
本実施例は、縦壁部２２，２３の先端部と中空部２１の先端側とを斜めリブ２４，２５で連結した例になっているが、縦壁部，中空部の途中で連結した斜めリブでもよく、斜めリブの繋ぎ方は、斜め方向に配置されていればよい。
さらには、図３（ｃ）に示すように、中空部２１の先端側の縦壁部２８を設けて、図２とは逆方向に斜めリブ２４ａ，２５ａを設けた構造であってもよい。 The shock absorbing member 20 has a hollow portion 21 located in the horizontal direction of the base member 10, an upper vertical wall portion 22 connected to the hollow portion 21, and a lower vertical wall portion 23.
The vertical wall portion 22 on the upper side has an oblique rib 24 connected to the hollow portion 21 so as to be obliquely connected.
The vertical wall portion 23 hanging downward has an oblique rib 25 diagonally connected to the hollow portion 21.
In this embodiment, the tips of the vertical walls 22 and 23 and the tips of the hollow portions 21 are connected by diagonal ribs 24 and 25, but the diagonal ribs 24 and 25 are connected in the middle of the vertical walls and the hollow portions. The ribs may be used, and the diagonal ribs may be connected in the diagonal direction.
Further, as shown in FIG. 3C, the structure may be such that the vertical wall portion 28 on the tip end side of the hollow portion 21 is provided and the oblique ribs 24a and 25a are provided in the direction opposite to that in FIG.

中空部２１は、外部からの衝撃を向ける受圧部２１ａと、水平方向の上下一対の水平リブ２１ｂ，２１ｃと、基部材１０の端面に当接する伝達部２１ｄからなる中空断面形状の梁となっている。
また、中空部２１の伝達部２１ｄから上下一対のフランジ部２６ａ，２６ｂを延在させ、基部材１０の端部をこのフランジ部２６ａ，２６ｂで挟み込むように、差し込み連結する構造になっている。 The hollow portion 21 is a beam having a hollow cross-sectional shape including a pressure receiving portion 21a for directing an impact from the outside, a pair of upper and lower horizontal ribs 21b and 21c in the horizontal direction, and a transmission portion 21d that abuts on the end face of the base member 10. There is.
Further, a pair of upper and lower flange portions 26a and 26b extend from the transmission portion 21d of the hollow portion 21, and the end portions of the base member 10 are inserted and connected so as to be sandwiched between the flange portions 26a and 26b.

これにより図２（ｂ）に示すように、受圧部２１ａに入力された衝撃ｆ１は、中空部２１を介して基部材１０に伝達される。
また、図３（ａ）に示すように、斜め上方からの衝撃ｆ２は、中空部２１を下方に曲げる変形力Ｄを生じさせるが、上側の斜めリブ２４に引張り力Ｓが作用し、下側の斜めリブ２５に圧縮力Ｐが作用するので、中空部２１の変形が抑え、衝撃力が基部材に伝達されやすくなる。
これとは逆に、図３（ｂ）に示すように受圧部２１ａに斜め下方から衝撃が加わると、上側の斜めリブ２４に圧縮力Ｐが作用し、下側の斜めリブ２５に引張り力Ｓが作用されるで、同様に衝撃力が基部材に伝達される。
これは図３（ｃ）に示すように、受圧側に縦壁部２８を形成し、斜めリブ２４ａ，２５ａの連結方向を逆にしても同様の作用が生ずる。 Thus, as shown in FIG. 2 (b), the impact f 1 input to the pressure receiving portion 21a is transmitted to the base member 10 via the hollow portion 21.
Further, as shown in FIG. 3 (a), the impact f 2 from obliquely upward, but causes a deformation force D bending the hollow portion 21 downward, pulling force S on the upper side oblique rib 24 acts, under Since the compressive force P acts on the diagonal rib 25 on the side, the deformation of the hollow portion 21 is suppressed, and the impact force is easily transmitted to the base member.
On the contrary, as shown in FIG. 3B, when an impact is applied to the pressure receiving portion 21a from diagonally below, a compressive force P acts on the upper diagonal rib 24 and a tensile force S acts on the lower diagonal rib 25. Is acted upon, and the impact force is similarly transmitted to the base member.
As shown in FIG. 3C, the same effect occurs even if the vertical wall portion 28 is formed on the pressure receiving side and the connecting directions of the oblique ribs 24a and 25a are reversed.

上記のような変形作用は図４に示すように、縦壁部２２を上方側の片方あるいは下側の片方のみに設けても生ずる。
この場合には上方斜めからの衝撃力ｆ２に対しては、斜めリブ２４が引張り力Ｓを受け、下方斜めからの衝撃力ｆ３に対しては、圧縮力Ｐが作用する。
また、図５に示すように、縦壁部２２と斜めリブ２４との間に水平リブ２７を形成しても同様の作用が生ずる。 As shown in FIG. 4, the above-mentioned deformation action occurs even if the vertical wall portion 22 is provided on only one of the upper side or the lower side.
In this case, the diagonal rib 24 receives the tensile force S with respect to the impact force f 2 from the upward oblique direction, and the compressive force P acts with respect to the impact force f 3 from the downward oblique direction.
Further, as shown in FIG. 5, the same effect occurs even if the horizontal rib 27 is formed between the vertical wall portion 22 and the oblique rib 24.

図６は、参考のために斜めリブがない場合の例を示す。
中空部１２１を有し、縦壁部を１２２，１２３の中空部に設定したとしても、斜めリブが無いと中空部１２１が上方ｄ１又は下方ｄ２に曲がり変形するだけで、衝撃力が充分に基部材に伝達されない。 FIG. 6 shows an example in the case where there is no diagonal rib for reference.
Even if the hollow portion 121 is provided and the vertical wall portion is set to the hollow portion of 122, 123, if there is no diagonal rib, the hollow portion 121 is only bent and deformed upward d 1 or downward d 2 , and the impact force is sufficient. Is not transmitted to the base member.

１０ 基部材
２０ 衝撃吸収部材
２１ 中空部
２２ 縦壁部
２４ 斜めリブ部
２６ａ フランジ部 10 Base member 20 Shock absorbing member 21 Hollow part 22 Vertical wall part 24 Diagonal rib part 26a Flange part

Claims (3)

基部材の端部に取り付ける衝撃吸収部材であって、
前記衝撃吸収部材は前記基部材と水平方向に配置した中空部と、前記中空部の上下方向の一方又は両方に配置した縦壁部と、前記中空部と縦壁部とを斜めに繋いだ斜めリブを有し、
前記中空部は前記基部材の端部に取り付けるための上下一対のフランジ部を有することを特徴とする衝撃吸収部材。 A shock absorbing member attached to the end of the base member,
The shock absorbing member is an oblique connecting a hollow portion arranged horizontally with the base member, a vertical wall portion arranged in one or both of the hollow portions in the vertical direction, and the hollow portion and the vertical wall portion diagonally. has a rib,
The hollow portion is a shock absorbing member having a pair of upper and lower flange portions for attaching to the end portion of the base member. 請求項１記載の衝撃吸収部材を前記基部材の両側の端部に対向して取り付けたことを特徴とする衝撃吸収構造体。 A shock absorbing structure according to claim 1 , wherein the shock absorbing member is attached to face the ends on both sides of the base member. 前記基部材は前記両側の衝撃吸収部材の対向方向と直交する方向の断面が中空断面形状であることを特徴とする請求項２記載の衝撃吸収構造体。 The shock absorbing structure according to claim 2, wherein the base member has a hollow cross-sectional shape in a direction orthogonal to the facing direction of the shock absorbing members on both sides.
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