JP6999313B2 - Protective frame structure - Google Patents

Protective frame structure Download PDF

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JP6999313B2
JP6999313B2 JP2017140419A JP2017140419A JP6999313B2 JP 6999313 B2 JP6999313 B2 JP 6999313B2 JP 2017140419 A JP2017140419 A JP 2017140419A JP 2017140419 A JP2017140419 A JP 2017140419A JP 6999313 B2 JP6999313 B2 JP 6999313B2
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frame
connecting frame
main connecting
battery module
protective
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JP2019018765A (en
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巧 五之治
聡 川口
浩之 初見
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Aisin Keikinzoku Co Ltd
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Aisin Keikinzoku Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)

Description

本発明は、車両に駆動用の電池モジュールを搭載するための保護フレーム構造体に関する。 The present invention relates to a protective frame structure for mounting a drive battery module in a vehicle.

車両に駆動用の電池モジュールを搭載する場合には、車両前後方向からの衝撃荷重や車両左右方向からの衝撃荷重等から、この電池モジュールを保護する必要がある。 When the battery module for driving is mounted on the vehicle, it is necessary to protect the battery module from the impact load from the front-rear direction of the vehicle, the impact load from the left-right direction of the vehicle, and the like.

例えば特許文献１には、電池モジュールの脚部同士が互いに橋絡部上において櫛歯状に噛み合うように配置した電池パックを開示するか一方向の衝撃には保護効果が高いものの、それとは直交する方向の保護強度に劣る課題がある。 For example, Patent Document 1 discloses a battery pack in which the legs of the battery module are arranged so as to mesh with each other in a comb-like shape on the bridge tie, or the battery pack has a high protective effect against a one-way impact, but is orthogonal to the battery pack. There is a problem that the protection strength in the direction is inferior.

特開２０１４－１０３０７５号公報Japanese Unexamined Patent Publication No. 2014-103075

本発明は、前後、左右方向等いずれの方向からの衝撃荷重に対しても保護効果が高い保護フレーム構造体の提供を目的とする。 An object of the present invention is to provide a protective frame structure having a high protective effect against an impact load from any direction such as front-back and left-right directions.

本発明に係る保護フレーム構造体は、それぞれ中空断面形状からなる第１フレームと第２フレームとを所定の間隔を隔てて有し、前記第１フレームと第２フレームとの内側の間を突き合せ連結した連結フレームを有することを特徴とする。
ここで、第１フレームと第２フレームとは、車両の前後方向に配置しても左右方向に配置してもよく、電池モジュールの搭載に合せて選定できる。 The protective frame structure according to the present invention has a first frame and a second frame each having a hollow cross-sectional shape at a predetermined interval, and abuts between the insides of the first frame and the second frame. It is characterized by having a connected connecting frame.
Here, the first frame and the second frame may be arranged in the front-rear direction or the left-right direction of the vehicle, and can be selected according to the mounting of the battery module.

また、連結フレームは主連結フレームと補助連結フレームとの複数であってもよく、主連結フレームは段差状の凸部を延在方向に沿って有し、前記第１フレームと第２フレームとはそれぞれ内側に平面視で略コ字形状の凹部を有し、前記主連結フレームに設けた凸部の両側の端部がそれぞれ前記第１フレームと第２フレームの凹部に位置するように突き合せ連結してあってもよい。
このようにすると、第１フレーム又は第２フレームからの荷重は、主連結フレームの両端部の突き合せ連結部を介して伝播され、第１フレームと平行方向の荷重は、凹部の側部と主連結フレームの凸部の側部の段差部とが干渉し伝播される。 Further, the connecting frame may be a plurality of a main connecting frame and an auxiliary connecting frame, and the main connecting frame has a stepped convex portion along the extending direction, and the first frame and the second frame are different from each other. Each has a substantially U-shaped concave portion in a plan view, and is butt-connected so that the ends on both sides of the convex portion provided on the main connecting frame are located in the concave portions of the first frame and the second frame, respectively. You may have done so.
In this way, the load from the first frame or the second frame is propagated through the butt joints at both ends of the main connecting frame, and the load in the direction parallel to the first frame is the side of the recess and the main. It interferes with the stepped portion on the side of the convex portion of the connecting frame and propagates.

本発明において主連結フレームは、中空断面形状であってもよい。
このようにすると、第１及び第２フレームの中空断面方向と主連結フレームの中空断面方向がクロスし、衝撃吸収が大きい。 In the present invention, the main connecting frame may have a hollow cross-sectional shape.
In this way, the hollow cross-sectional direction of the first and second frames and the hollow cross-sectional direction of the main connecting frame cross each other, and the impact absorption is large.

本発明において、第１フレームと第２フレームとに電池モジュールの固定部を有するのが好ましい。
これにより、中空断面形状からなる第１及び第２フレームに跨がるように電池モジュールを固定でき、保護効果が高い。 In the present invention, it is preferable that the first frame and the second frame have fixed portions of the battery module.
As a result, the battery module can be fixed so as to straddle the first and second frames having a hollow cross-sectional shape, and the protective effect is high.

本発明に係る保護フレーム構造体は、第１及び第２フレームとの間を連結フレームにて突き合せ連結したので、前後方向，左右方向のいずれの方向からの荷重に対しても構造体の全体に伝播し、電池モジュールの保護効果が高い。 Since the protective frame structure according to the present invention is abutted and connected to the first and second frames by a connecting frame, the entire structure can be subjected to a load from either the front-rear direction or the left-right direction. It propagates to the battery module and has a high protective effect.

本発明に係る保護フレーム構造体の斜視図を示す。The perspective view of the protection frame structure which concerns on this invention is shown. （ａ）は平面図を示し、（ｂ）は分解図を示す。(A) shows a plan view, and (b) shows an exploded view. 連結フレームの中央部を省略した拡大図を示す。An enlarged view is shown in which the central part of the connecting frame is omitted. （ａ），（ｂ）は連結フレーム側面図を示し、（ｃ）はＡ－Ａ線断面端面図を示し、（ｄ）はその拡大図を示す。(A) and (b) show the side view of the connecting frame, (c) show the cross-sectional end view of the line AA, and (d) show the enlarged view. （ａ）はＢ－Ｂ線断面端面図、（ｂ）はその部分拡大図を示す。(A) is a cross-sectional end view taken along the line BB, and (b) is a partially enlarged view thereof. （ａ），（ｂ）は第２フレームの側面図を示し、（ｃ）はＣ－Ｃ線断面端面図を示し、（ｄ）はその拡大図を示す。(A) and (b) show the side view of the second frame, (c) show the CC line sectional end view, and (d) show the enlarged view. 第２の実施例を示す。A second embodiment is shown.

本発明に係る電池モジュールを車両に搭載するための保護フレーム構造体の例を以下、図に基づいて説明する。 An example of a protective frame structure for mounting the battery module according to the present invention on a vehicle will be described below with reference to the drawings.

図１は保護フレーム構造体１０の斜視図を示し、図２（ａ）に平面図、（ｂ）に分解図を示す。
側面図及び断面図を図４～６に示す。
図１は、車両のフロント側を矢印Ｆで示した。
第１フレーム１１，第２フレーム１２は、アルミニウム合金の押出材を用いてその押出方向（Ｅ１，Ｅ２）に沿った中空断面形状になっている。
第１フレーム１１と第２フレーム１２との内側の間を、主連結フレーム１３にて突き合せ連結してある。
主連結フレーム１３は、押出方向が（Ｅ３）であり、第１フレーム１１，第２フレーム１２の押出方向（中空方向）と直交している。
本実施例は、第１フレーム１１と第２フレーム１２との両端部側であって、内側の間を突き合せ連結した補助連結フレーム１４と補助連結フレーム１５とを有する例になっている。
この補助連結フレーム１４，１５は片側のみでもよく、ソリッド断面形状でもよいが、本実施例は第１，第２フレームと同じ方向（Ｅ３，Ｅ４）の中空断面形状になっている。
また本実施例では、補助連結フレーム１４，１５を複数の分割材１４ａ～１４ｆ，１５ａ～１５ｆになっているが一体でもよく、ソリッド断面形状と中空断面形状の部材を組み合せて連結してもよい。 1A and 1B show a perspective view of the protective frame structure 10, FIG. 2A shows a plan view, and FIG. 2B shows an exploded view.
Side views and sectional views are shown in FIGS. 4 to 6.
In FIG. 1, the front side of the vehicle is indicated by an arrow F.
The first frame 11 and the second frame 12 have a hollow cross-sectional shape along the extrusion direction (E 1 , E 2 ) by using an extruded material of an aluminum alloy.
The inside of the first frame 11 and the second frame 12 are butt-connected by the main connecting frame 13.
The main connecting frame 13 has an extrusion direction (E3) and is orthogonal to the extrusion direction (hollow direction) of the first frame 11 and the second frame 12.
This embodiment is an example having an auxiliary connecting frame 14 and an auxiliary connecting frame 15 which are on both ends of the first frame 11 and the second frame 12 and which are butt-connected between the insides.
The auxiliary connecting frames 14 and 15 may have only one side or a solid cross-sectional shape, but this embodiment has a hollow cross-sectional shape in the same direction as the first and second frames (E3 , E4 ).
Further, in this embodiment, the auxiliary connecting frames 14 and 15 are formed of a plurality of divided members 14a to 14f and 15a to 15f, but may be integrated, or members having a solid cross-sectional shape and a hollow cross-sectional shape may be combined and connected. ..

第１フレーム１１は図４に示すように、車両側に固定するフランジ１１ａと、主連結フレーム１３、及び補助フレーム１４，１５の端部を内側に嵌合するための一対の嵌合片１１ｂ，１１ｃを有する。
第２フレーム１２も同様に、フランジ部１２ａと一対の嵌合片１２ｂ，１２ｃを有する。
また、第１フレーム１１と第２フレーム１２との上面に電池モジュールを固定するために、固定部１６，１７を有する。 As shown in FIG. 4, the first frame 11 has a flange 11a fixed to the vehicle side, and a pair of fitting pieces 11b for inwardly fitting the ends of the main connecting frame 13 and the auxiliary frames 14 and 15. Has 11c.
Similarly, the second frame 12 has a flange portion 12a and a pair of fitting pieces 12b and 12c.
Further, the fixing portions 16 and 17 are provided for fixing the battery module on the upper surfaces of the first frame 11 and the second frame 12.

主連結フレーム１３は、第１フレーム１１と第２フレーム１２の上面と面一になる凸部１３ａと、段差状に厚みを薄くした薄厚部１３ｂ，１３ｂを凸部１３ａの両側に有する。
主連結フレーム１３の断面を図６に示すように、上面と下面とをリブ１３ｃにて連結した中空断面形状になっている。
主連結フレーム１３の凸部１３ａの上面を第１，第２フレーム１１，１２の上面と面一にしたので、電池モジュールの載置がしやすくなっている。
このような断面は、押出形材にて容易に製作できる。
薄厚部１３の端部は、第１フレーム１１，第２フレーム１２の嵌合片（１１ｂ，１１ｃ），（１２ｂ，１２ｃ）の間に嵌合され、凸部１３ａの端部は第１フレーム１１，第２フレーム１２の上側の嵌合片１１ｂ，１２ｂを切り欠いて設けた凹部１１ｄ，１２ｄに収まる。
この凸部１３ａの段差部の両側は、切欠けフランジ（１１ｅ，１１ｆ），（１２ｅ，１２ｆ）の間に位置する。
このように、凸部１３ａの端部が凹部１１ｄ，１２ｄに収まるので、主連結フレーム１３の両端部は、第１フレーム１１，第２フレーム１２の中空断面部の側壁に突き当たる。
図示を省略した電池モジュールは、第１フレーム１１の固定部１６と、第２フレーム１２の固定部１７にて固定される。
これにより、前後，左右方向からの衝撃荷重が電池モジュールに直接的に加わることがなくなり、保護効果が高い。
ここで電池モジュールとは、複数の電池セルを積層したものや、複数の電池を収容したパック等、構造に制限はない。
本発明に係る保護フレーム構造体の車両への搭載方向や位置に制限がなく、図１に矢印で示した方向を車両の前方側に合せて配置してもよく、また図７に第２の実施例を示すように、第１，第２フレーム１１，１２を車両の幅方向に配置してもよい。 The main connecting frame 13 has convex portions 13a that are flush with the upper surfaces of the first frame 11 and the second frame 12, and thin portions 13b and 13b whose thickness is reduced in a stepped manner on both sides of the convex portions 13a.
As shown in FIG. 6, the cross section of the main connecting frame 13 has a hollow cross-sectional shape in which the upper surface and the lower surface are connected by ribs 13c.
Since the upper surface of the convex portion 13a of the main connecting frame 13 is flush with the upper surfaces of the first and second frames 11 and 12, the battery module can be easily mounted.
Such a cross section can be easily manufactured with an extruded profile.
The end of the thin portion 13 is fitted between the fitting pieces (11b, 11c) and (12b, 12c) of the first frame 11 and the second frame 12, and the end of the convex portion 13a is the first frame 11. , Fits in the recesses 11d, 12d provided by cutting out the fitting pieces 11b, 12b on the upper side of the second frame 12.
Both sides of the stepped portion of the convex portion 13a are located between the notched flanges (11e, 11f) and (12e, 12f).
As described above, since the end portions of the convex portions 13a are accommodated in the concave portions 11d and 12d, both end portions of the main connecting frame 13 abut against the side walls of the hollow cross-sectional portions of the first frame 11 and the second frame 12.
The battery module (not shown) is fixed by the fixing portion 16 of the first frame 11 and the fixing portion 17 of the second frame 12.
As a result, the impact load from the front-back and left-right directions is not directly applied to the battery module, and the protective effect is high.
Here, the battery module is not limited in structure, such as a stack of a plurality of battery cells or a pack containing a plurality of batteries.
There is no limitation on the mounting direction and position of the protective frame structure according to the present invention on the vehicle, the direction indicated by the arrow in FIG. 1 may be aligned with the front side of the vehicle, and the second one in FIG. As shown in the embodiment, the first and second frames 11 and 12 may be arranged in the width direction of the vehicle.

１０ 保護フレーム構造体
１１ 第１フレーム
１２ 第２フレーム
１３ 主連結フレーム
１３ａ 凸部
１４ 補助連結フレーム
１５ 補助連結フレーム
１６ 固定部
１７ 固定部 10 Protective frame structure 11 1st frame 12 2nd frame 13 Main connecting frame 13a Convex part 14 Auxiliary connecting frame 15 Auxiliary connecting frame 16 Fixed part 17 Fixed part

Claims (3)

車両に電池モジュールを搭載するために当該電池モジュールを載置する保護フレーム構造体であって、
それぞれ中空断面形状からなる第１フレームと第２フレームとを所定の間隔を隔てて有し、
前記第１フレームと第２フレームとの内側の間を突き合せ連結した連結フレームを有し、
前記連結フレームは主連結フレームと前記主連結フレームの両側又はその一方に設けた補助連結フレームとを有し、
前記主連結フレームは段差状の凸部を延在方向に沿って有するとともに前記凸部の両側に薄厚部を有し、
前記第１フレームと第２フレームとはそれぞれ内側に前記主連結フレームの薄厚部と補助連結フレームの端部を嵌合連結するための上下一対の嵌合片を有し、
前記嵌合片の一部を切り欠いて形成した平面視で略コ字形状の凹部を有し、
前記主連結フレームに設けた凸部の両側の端部がそれぞれ前記第１フレームと第２フレームの凹部に突き合せ連結してあることを特徴とする保護フレーム構造体。 It is a protective frame structure in which the battery module is mounted in order to mount the battery module in the vehicle.
A first frame and a second frame each having a hollow cross-sectional shape are provided at predetermined intervals.
It has a connecting frame in which the insides of the first frame and the second frame are abutted and connected.
The connecting frame has a main connecting frame and an auxiliary connecting frame provided on both sides or one of the main connecting frames.
The main connecting frame has stepped protrusions along the extending direction and has thin portions on both sides of the protrusions.
The first frame and the second frame each have a pair of upper and lower fitting pieces for fitting and connecting the thin portion of the main connecting frame and the end portion of the auxiliary connecting frame inside.
It has a substantially U-shaped recess in a plan view formed by cutting out a part of the fitting piece.
A protective frame structure characterized in that both end portions of a convex portion provided on the main connecting frame are butt-connected to the concave portions of the first frame and the second frame, respectively . 前記主連結フレームは中空断面形状であることを特徴とする請求項１記載の保護フレーム構造体。 The protective frame structure according to claim 1 , wherein the main connecting frame has a hollow cross-sectional shape. 前記第１フレームと第２フレームとに電池モジュールの固定部を有することを特徴とする請求項１又は２に記載の保護フレーム構造体。 The protective frame structure according to claim 1 or 2 , wherein the first frame and the second frame have a fixing portion of a battery module.
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