JP2013169936A - Under cover - Google Patents

Under cover Download PDF

Info

Publication number
JP2013169936A
JP2013169936A JP2012036240A JP2012036240A JP2013169936A JP 2013169936 A JP2013169936 A JP 2013169936A JP 2012036240 A JP2012036240 A JP 2012036240A JP 2012036240 A JP2012036240 A JP 2012036240A JP 2013169936 A JP2013169936 A JP 2013169936A
Authority
JP
Japan
Prior art keywords
vehicle
under cover
ribs
undercover
cover
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2012036240A
Other languages
Japanese (ja)
Inventor
Makoto Takehara
誠 竹原
Satoshi Miyanaga
聡 宮永
Kito Yamamoto
貴統 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
Original Assignee
Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp, Mitsubishi Automotive Engineering Co Ltd filed Critical Mitsubishi Motors Corp
Priority to JP2012036240A priority Critical patent/JP2013169936A/en
Publication of JP2013169936A publication Critical patent/JP2013169936A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Landscapes

  • Body Structure For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an under cover capable of reducing weight while securing rigidity, and advantageous in reducing an air resistance during travel.SOLUTION: An under cover 22 includes a plurality of longitudinal ribs 36, a plurality of cross ribs 38, and a plurality of reinforcing ribs 40. The plurality of longitudinal ribs 36 are formed projecting from the lower face of the under cover 22 and extending in the longitudinal direction of a vehicle 10 at spaces in the cross direction of the vehicle. The cross ribs 38 are formed projecting from the lower face of the under cover 22 and extending from the longitudinal ribs 36 in the cross direction of the vehicle and backward of the vehicle 10. The cross ribs 38 extending from the adjacent longitudinal ribs 36 have rear ends located different in the longitudinal direction of the vehicle 10. The reinforcing ribs 40 are formed between the cross ribs 38 extending from the adjacent longitudinal ribs 36, projecting from the lower face of the under cover 22.

Description

本発明は車体の下部を覆うアンダーカバーに関する。   The present invention relates to an undercover that covers a lower portion of a vehicle body.

車体の下部は、車体に搭載された部材を飛び石や水などから保護するためのアンダーカバーで覆われており、このようなアンダーカバーとしてエンジンを保護するものが開示されている（特許文献１、２参照）。
また、車体の下部にバッテリパックが搭載された電気自動車では、バッテリパックのバッテリケースの下面を覆うようにアンダーカバーが設けられている（特許文献３参照）。 The lower part of the vehicle body is covered with an under cover for protecting members mounted on the vehicle body from stepping stones, water, and the like, and an engine that protects the engine as such an under cover is disclosed (Patent Document 1, 2).
Moreover, in an electric vehicle having a battery pack mounted on the lower part of the vehicle body, an under cover is provided so as to cover the lower surface of the battery case of the battery pack (see Patent Document 3).

実開平１−１４５６７８号公報Japanese Utility Model Publication No. 1-145678. 特公昭６３−５０４３１号公報Japanese Patent Publication No. 63-50431 特開２００９−８３５９８号公報JP 2009-83598 A

一方、電気自動車のバッテリケースは大きく、そのため、車体下部のスペースを大きく占有することからアンダーカバーの面積も大きなものとなる。
この場合、燃費の向上を図るためにアンダーカバーの軽量化が求められると共に、耐久性の向上を図るためにアンダーカバーの剛性を確保する必要がある。
そこで、アンダーカバーの肉厚を薄型化して軽量化を図ると共に、剛性を確保するための補強リブをアンダーカバーに形成することが考えられる。
この場合、補強リブをアンダーカバーの上面に設けたのでは、アンダーカバーの上面のスペースが無駄になる。
そこで、補強リブをアンダーカバーの下面に設けることが考えられるが、この場合には、補強リブにより走行時にアンダーカバーの空気抵抗が増大し、燃費の向上を図る上で不利が生じることが懸念される。
本発明は、上記事情に鑑みなされたものであり、剛性を確保しつつ軽量化を図れ、かつ、走行時の空気抵抗の低減を図る上で有利なアンダーカバーを提供することを目的とする。 On the other hand, the battery case of an electric vehicle is large, and therefore the area of the under cover becomes large because it occupies a large space under the vehicle body.
In this case, it is necessary to reduce the weight of the under cover in order to improve fuel consumption, and it is necessary to ensure the rigidity of the under cover in order to improve durability.
Therefore, it is conceivable to reduce the thickness of the under cover to reduce the weight and to form reinforcing ribs on the under cover for ensuring rigidity.
In this case, if the reinforcing rib is provided on the upper surface of the under cover, the space on the upper surface of the under cover is wasted.
Therefore, it is conceivable to provide a reinforcing rib on the lower surface of the under cover. In this case, there is a concern that the reinforcing rib increases the air resistance of the under cover during travel, which may cause a disadvantage in improving fuel consumption. The
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an undercover that can be reduced in weight while securing rigidity and is advantageous in reducing air resistance during traveling.

上記目的を達成するために、本発明は、車体の下部を覆うアンダーカバーであって、前記アンダーカバーの下面から突出形成され、車幅方向に間隔をおき車両の前後方向に延在する複数の縦リブと、前記アンダーカバーの下面から突出形成され、前記縦リブから車幅方向かつ車両の後方に向かって延在する横リブとを備えることを特徴とする。   In order to achieve the above object, the present invention is an undercover that covers a lower portion of a vehicle body, and is formed so as to protrude from the lower surface of the undercover and extends in the vehicle front-rear direction at intervals in the vehicle width direction. A vertical rib and a horizontal rib that protrudes from the lower surface of the under cover and extends from the vertical rib in the vehicle width direction and toward the rear of the vehicle.

請求項１記載の発明によれば、車幅方向に間隔をおき車両の前後方向に延在する複数の縦リブと、縦リブから車幅方向かつ車両の後方に向かって延在する横リブとを設けた。したがって、アンダーカバーの薄型化および軽量化を図りつつ剛性を確保する上で有利となり、走行時に縦リブおよび横リブに沿って空気が導かれるため、アンダーカバーの空気抵抗の抑制を図る上で有利となる。
請求項２記載の発明によれば、隣り合う縦リブから延在する横リブは、それらの後端の位置が車両の前後方向においてずらされているので、アンダーカバーの下面で空気および水を車両の後方に効率よく導く上で有利となる。
請求項３記載の発明によれば、隣り合う縦リブから延在する横リブの間に、隣り合う縦リブの横リブに平行する互いに延在方向が異なる直線部が車両の前後方向に沿ってジグザグ状に接続されて構成された補強リブを設けた。したがって、アンダーカバーの薄型化および軽量化を図りつつ、剛性を確保する上でより一層有利となり、空気抵抗の抑制を図る上でも有利となる。
請求項４記載の発明によれば、走行時における横リブの表面を流れる空気に作用する空気抵抗の抑制を図ることができ、アンダーカバーの空気抵抗の抑制を図る上でより有利となる。
請求項５記載の発明によれば、アンダーカバーの車体への取り付け、取り外し作業の容易化を図る上で有利となる。
請求項６記載の発明によれば、バッテリケースが車体の下部に大きなスペースを占有することからアンダーカバーの面積が大きい電気自動車の場合に、アンダーカバーの剛性を確保しつつ軽量化を図れ、かつ、走行時の空気抵抗の低減を図る上でより一層有利となる。 According to the first aspect of the present invention, the plurality of vertical ribs that extend in the vehicle front-rear direction at intervals in the vehicle width direction, and the horizontal ribs that extend from the vertical rib in the vehicle width direction and toward the rear of the vehicle, Was provided. Therefore, it is advantageous for securing rigidity while reducing the thickness and weight of the undercover, and since air is guided along the vertical rib and the horizontal rib during traveling, it is advantageous for suppressing the air resistance of the undercover. It becomes.
According to the second aspect of the present invention, the horizontal ribs extending from the adjacent vertical ribs have their rear end positions shifted in the front-rear direction of the vehicle. This is advantageous for efficiently guiding the rearward of
According to the invention described in claim 3, between the lateral ribs extending from the adjacent vertical ribs, the straight portions parallel to the horizontal ribs of the adjacent vertical ribs and having different extending directions are along the longitudinal direction of the vehicle. Reinforcing ribs configured in a zigzag manner were provided. Therefore, it is more advantageous to ensure rigidity while reducing the thickness and weight of the undercover, and also advantageous for suppressing air resistance.
According to the fourth aspect of the present invention, it is possible to suppress the air resistance acting on the air flowing on the surface of the lateral rib during traveling, which is more advantageous for suppressing the air resistance of the undercover.
According to the fifth aspect of the present invention, it is advantageous in facilitating the attachment / detachment of the under cover to / from the vehicle body.
According to the invention described in claim 6, since the battery case occupies a large space in the lower part of the vehicle body, in the case of an electric vehicle having a large area of the under cover, it is possible to reduce the weight while ensuring the rigidity of the under cover, and This is even more advantageous in reducing air resistance during travel.

本実施の形態に係るアンダーカバー２２が取着された車両を下方から見た図である。It is the figure which looked at the vehicle with which the undercover 22 which concerns on this Embodiment was attached from the downward direction. （Ａ）は前カバー部３０Ａの上面図、（Ｂ）は後カバー部３０Ｂの上面図である。(A) is a top view of the front cover portion 30A, and (B) is a top view of the rear cover portion 30B. （Ａ）は前カバー部３０Ａの下面図、（Ｂ）は後カバー部３０Ｂの下面図である。(A) is a bottom view of the front cover portion 30A, and (B) is a bottom view of the rear cover portion 30B. （Ａ）は前カバー部３０Ａおよび前カバー用シールド部材３４Ａの斜視図、（Ｂ）は後カバー部３０Ｂおよび後カバー用シールド部材３４Ａの斜視図である。(A) is a perspective view of the front cover part 30A and the front cover shield member 34A, and (B) is a perspective view of the rear cover part 30B and the rear cover shield member 34A. 横リブ３８の断面図である。3 is a cross-sectional view of a lateral rib 38. FIG.

以下、本発明の実施の形態について図面を参照して説明する。
本実施の形態では、アンダーカバーが設けられる車両がモータを駆動源とした電気自動車である場合について説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, a case where the vehicle provided with the under cover is an electric vehicle using a motor as a drive source will be described.

図１に示すように、車両１０は、車体１２、走行用モータ１４、前輪１６、後輪１８、バッテリパック２０、アンダーカバー２２を含んで構成されている。
車体１２は、一対のサイドメンバ２４と、不図示の複数のクロスメンバと、フロアパネル２６とを含んで構成されている。
一対のサイドメンバ２４は、車両１０の車幅方向に間隔をおいて車両１０の前後方向に延在している。
複数のクロスメンバは、前後方向に間隔をおいて配置され、それぞれ車幅方向に延在して一対のサイドメンバ２４を連結している。
フロアパネル２６は車体１２の下部に配置され、車室内と車室外とを区画するものであり鋼板で構成され、前後方向および車幅方向に延在し、フロアパネル２６の下面の車幅方向の両側が一対のサイドメンバ２４に溶接により接合されている。 As shown in FIG. 1, the vehicle 10 includes a vehicle body 12, a traveling motor 14, a front wheel 16, a rear wheel 18, a battery pack 20, and an under cover 22.
The vehicle body 12 includes a pair of side members 24, a plurality of cross members (not shown), and a floor panel 26.
The pair of side members 24 extends in the front-rear direction of the vehicle 10 with an interval in the vehicle width direction of the vehicle 10.
The plurality of cross members are arranged at intervals in the front-rear direction, and extend in the vehicle width direction to connect the pair of side members 24.
The floor panel 26 is disposed at the lower part of the vehicle body 12 and divides the vehicle interior and the exterior of the vehicle interior, is made of a steel plate, extends in the front-rear direction and the vehicle width direction, and extends in the vehicle width direction on the lower surface of the floor panel 26. Both sides are joined to the pair of side members 24 by welding.

走行用モータ１４は車体１２の後部に配置され、バッテリパック２０から供給される電力によって駆動され、後二輪１８を回転させる。
バッテリパック２０は、フロアパネル２６の下方に配置され、走行用のバッテリと、該バッテリを収容するバッテリケース２８とを備えている。
バッテリは、互いに直列に接続された複数の電池モジュールと、これら電池モジュールを機能させるための周辺部品とを含んで構成されている。各電池モジュールは互いに直列に接続された複数の電池セルを備えている。
バッテリケース２８は、平面視矩形板状を呈し、長手方向を車両１０の前後方向に合致させて車幅方向の中央に配置されている。
バッテリケース２８は、フロアパネル２６の下方で一対のサイドメンバ２４の内側に配置され、バッテリケース２８に連結された不図示の取り付け部材を介して一対のサイドメンバ２４に取着されている。 The traveling motor 14 is disposed at the rear of the vehicle body 12 and is driven by electric power supplied from the battery pack 20 to rotate the rear two wheels 18.
The battery pack 20 is disposed below the floor panel 26 and includes a battery for traveling and a battery case 28 that accommodates the battery.
The battery includes a plurality of battery modules connected in series with each other and peripheral components for causing the battery modules to function. Each battery module includes a plurality of battery cells connected in series with each other.
The battery case 28 has a rectangular plate shape in plan view, and is arranged at the center in the vehicle width direction with the longitudinal direction matching the longitudinal direction of the vehicle 10.
The battery case 28 is disposed below the floor panel 26 and inside the pair of side members 24, and is attached to the pair of side members 24 via attachment members (not shown) connected to the battery case 28.

アンダーカバー２２は、車体１２の下部を覆うものであり、本実施の形態では、バッテリケース２８の下面を覆っており、バッテリケース２８の下面を覆う大きさと形状で形成されている。   The under cover 22 covers the lower portion of the vehicle body 12, and in the present embodiment, covers the lower surface of the battery case 28, and is formed in a size and shape that covers the lower surface of the battery case 28.

本実施の形態では、図２〜図４に示すように、アンダーカバー２２は、車両１０の前後方向においてアンダーカバー２２の中間部から前後に分離可能な前カバー部３０Ａおよび後カバー部３０Ｂで構成されている。
前カバー部３０Ａおよび後カバー部３０Ｂは、複数のボルト挿通孔３２が設けられており、それらボルト挿通孔３２を挿通したボルトが前記のバッテリケース２８に連結された不図示の取り付け部材のねじ孔に螺合されることで車体１２の下部に脱着可能に取着されている。
前カバー部３０Ａおよび後カバー部３０Ｂが車体１２の下部に取着され、前カバー部３０Ａおよび後カバー部３０Ｂが隙間なく前後に接続されることでアンダーカバー２２が構成される。
このようにアンダーカバー２２を前カバー部３０Ａおよび後カバー部３０Ｂで構成すると、アンダーカバー２２の車体１２への取り付け、取り外し作業の容易化を図る上で有利となる。 In the present embodiment, as shown in FIGS. 2 to 4, the under cover 22 includes a front cover portion 30 </ b> A and a rear cover portion 30 </ b> B that can be separated from the middle portion of the under cover 22 in the front-rear direction of the vehicle 10. Has been.
The front cover portion 30 </ b> A and the rear cover portion 30 </ b> B are provided with a plurality of bolt insertion holes 32, and screw holes of attachment members (not shown) in which bolts inserted through the bolt insertion holes 32 are connected to the battery case 28. It is attached to the lower part of the vehicle body 12 so as to be detachable.
The front cover portion 30A and the rear cover portion 30B are attached to the lower portion of the vehicle body 12, and the front cover portion 30A and the rear cover portion 30B are connected to each other without a gap so that the under cover 22 is configured.
If the under cover 22 is constituted by the front cover portion 30A and the rear cover portion 30B in this manner, it is advantageous in facilitating the attachment and detachment work of the under cover 22 to the vehicle body 12.

図２（Ａ）、（Ｂ）に示すように、前カバー部３０Ａおよび後カバー部３０Ｂの上面は、平坦面部３００２と、この平坦面部３００２に形成された複数の取付座３００４とを備え、取付座３００４にボルト挿通孔３２が設けられている。
図３（Ａ）、（Ｂ）に示すように、前カバー部３０Ａの上面とバッテリケース２８の下面との間に、電磁ノイズの漏洩を抑制する金属薄板からなる前カバー用シールド部材３４Ａが介設されている。
また、後カバー部３０Ｂの上面とバッテリケース２８の下面との間に、電磁ノイズの漏洩を抑制する金属薄板からなる後カバー用シールド部材３４Ｂが介設されている。
このようにアンダーカバー２２の上面に平坦面部３００２を設けることでアンダーカバー２２の上面のスペースをシールド部材３４Ａ、３４Ｂなどの部材の配置スペースとして有効に活用する上で有利となる。 As shown in FIGS. 2A and 2B, the upper surfaces of the front cover portion 30A and the rear cover portion 30B include a flat surface portion 3002 and a plurality of mounting seats 3004 formed on the flat surface portion 3002. A bolt insertion hole 32 is provided in the seat 3004.
As shown in FIGS. 3A and 3B, a front cover shield member 34A made of a thin metal plate that suppresses leakage of electromagnetic noise is interposed between the upper surface of the front cover portion 30A and the lower surface of the battery case 28. It is installed.
Further, a rear cover shield member 34B made of a thin metal plate that suppresses leakage of electromagnetic noise is interposed between the upper surface of the rear cover portion 30B and the lower surface of the battery case 28.
Providing the flat surface portion 3002 on the upper surface of the under cover 22 in this manner is advantageous in effectively utilizing the space on the upper surface of the under cover 22 as a space for arranging the members such as the shield members 34A and 34B.

図１、図３に示すように、アンダーカバー２２は、複数の縦リブ３６と、複数の横リブ３８と、複数の補強リブ４０とを備えている。
複数の縦リブ３６は、アンダーカバー２２の下面から突出形成され、車幅方向に間隔をおき車両１０の前後方向に延在している。
各縦リブ３６は、前カバー部３０Ａの前端から後カバー部３０Ｂの後端にわたって連続している。 As shown in FIGS. 1 and 3, the under cover 22 includes a plurality of vertical ribs 36, a plurality of horizontal ribs 38, and a plurality of reinforcing ribs 40.
The plurality of vertical ribs 36 project from the lower surface of the under cover 22 and extend in the front-rear direction of the vehicle 10 at intervals in the vehicle width direction.
Each vertical rib 36 is continuous from the front end of the front cover portion 30A to the rear end of the rear cover portion 30B.

横リブ３８は、アンダーカバー２２の下面から突出形成され、縦リブ３６から車幅方向かつ車両１０の後方に向かって延在している。
隣り合う縦リブ３６から延在する横リブ３８は、それらの後端の位置が車両１０の前後方向においてずらされている。
各横リブ３８が前カバー部３０Ａと後カバー部３０Ｂとにまたがる箇所では、前カバー部３０Ａおよび後カバー部３０Ｂにわたって連続している。
図５に示すように、横リブ３８をその延在方向と直交する平面で切断した断面は、車両１０の前方に対向する部分のアンダーカバー２２の下面に対して起立する角度θ１が、車両１０の後方に対向する部分のアンダーカバー２２の下面に対して起立する角度θ２よりも小さい値となっている。 The lateral ribs 38 are formed so as to protrude from the lower surface of the under cover 22, and extend from the longitudinal ribs 36 toward the rear of the vehicle 10 in the vehicle width direction.
The horizontal ribs 38 extending from the adjacent vertical ribs 36 are shifted in the front-rear direction of the vehicle 10 at the positions of their rear ends.
Where each lateral rib 38 spans the front cover portion 30A and the rear cover portion 30B, it is continuous over the front cover portion 30A and the rear cover portion 30B.
As shown in FIG. 5, the cross section obtained by cutting the lateral rib 38 along a plane perpendicular to the extending direction has an angle θ <b> 1 that stands up with respect to the lower surface of the under cover 22 at a portion facing the front of the vehicle 10. It is a value smaller than the angle θ2 that stands up with respect to the lower surface of the under cover 22 at the part facing the rear of the under cover 22.

補強リブ４０は、隣り合う縦リブ３６から延在する横リブ３８の間に、アンダーカバー２２の下面から突出形成されている。
補強リブ４０は、隣り合う縦リブ３６から延在する横リブ３８に平行する互いに延在方向が異なる直線部が車両１０の前後方向に沿ってジグザグ状に接続されて構成されている。
なお、アンダーカバー２２の厚さは、例えば２〜３ｍｍ程度であり、アンダーカバー２２の下面からの縦リブ３６、横リブ３８、補強リブ４０の高さは、例えば、２ｍｍ程度である。 The reinforcing ribs 40 are formed so as to protrude from the lower surface of the under cover 22 between the horizontal ribs 38 extending from the adjacent vertical ribs 36.
The reinforcing ribs 40 are configured such that straight portions parallel to the lateral ribs 38 extending from the adjacent vertical ribs 36 and having different extending directions are connected in a zigzag shape along the longitudinal direction of the vehicle 10.
The thickness of the under cover 22 is, for example, about 2 to 3 mm, and the heights of the vertical rib 36, the horizontal rib 38, and the reinforcing rib 40 from the lower surface of the under cover 22 are, for example, about 2 mm.

次に、このように構成されたアンダーカバー２２の作用効果について説明する。
本実施の形態では、アンダーカバー２２の下面に、車幅方向に間隔をおき車両１０の前後方向に延在する複数の縦リブ３６と、縦リブ３６から車幅方向に広がりつつ後方に変位する横リブ３８とを設けた。
したがって、アンダーカバー２２の薄型化および軽量化を図りつつあらゆる方向からの強度が確保され、剛性を確保する上で有利となる。
また、車両１０の走行時、車両１０の前後方向に延在する縦リブ３６と、縦リブ３６から車幅方向に広がりつつ後方に変位する横リブ３８に沿って空気が導かれるため、アンダーカバー２２の空気抵抗の抑制を図る上で有利となる。
また、車両１０の走行時、アンダーカバー２２の下面に付着した水も空気と同様に縦リブ３６と横リブ３８とによって後方に導かれるため、アンダーカバー２２の下面から水を効率よく排除する上で有利となる。 Next, the effect of the under cover 22 configured as described above will be described.
In the present embodiment, a plurality of vertical ribs 36 that extend in the front-rear direction of the vehicle 10 at intervals in the vehicle width direction on the lower surface of the under cover 22 and are displaced rearward while spreading from the vertical ribs 36 in the vehicle width direction. Horizontal ribs 38 were provided.
Therefore, the strength from all directions is ensured while making the under cover 22 thinner and lighter, which is advantageous in securing rigidity.
Further, when the vehicle 10 travels, the air is guided along the longitudinal ribs 36 extending in the front-rear direction of the vehicle 10 and the lateral ribs 38 that extend in the vehicle width direction and are displaced rearward from the longitudinal ribs 36. This is advantageous in suppressing the air resistance of 22.
Further, when the vehicle 10 is traveling, water adhering to the lower surface of the under cover 22 is guided rearward by the vertical ribs 36 and the horizontal ribs 38 in the same manner as air, so that water can be efficiently removed from the lower surface of the under cover 22. Is advantageous.

また、本実施の形態では、隣り合う縦リブ３６から延在する横リブ３８は、それらの後端の位置が車両１０の前後方向においてずらされているので、アンダーカバー２２の下面で空気および水を車両１０の後方に効率よく導く上で有利となる。
したがって、アンダーカバー２２の空気抵抗の抑制を図る上で有利となり、アンダーカバー２２の下面から水を効率よく排除する上で有利となる。 Further, in the present embodiment, the horizontal ribs 38 extending from the adjacent vertical ribs 36 have their rear end positions shifted in the front-rear direction of the vehicle 10. This is advantageous in efficiently guiding the vehicle to the rear of the vehicle 10.
Therefore, it is advantageous for suppressing the air resistance of the undercover 22 and is advantageous for efficiently removing water from the lower surface of the undercover 22.

また、本実施の形態では、図５に示すように、横リブ３８の断面は、車両１０の前方に対向する部分のアンダーカバー２２の下面に対して起立する角度が、車両１０の後方に対向する部分のアンダーカバー２２の下面に対して起立する角度よりも小さい値となっている。
したがって、走行時における横リブ３８の表面を流れる空気に作用する空気抵抗の抑制を図ることができ、アンダーカバー２２の空気抵抗の抑制を図る上でより有利となる。
また、走行時における横リブ３８の表面に付着した水を後方に効率よく導くことができ、アンダーカバー２２の下面から水を効率よく排除する上でより有利となる。 Further, in the present embodiment, as shown in FIG. 5, the cross-section of the lateral rib 38 is such that the angle rising with respect to the lower surface of the under cover 22 at the portion facing the front of the vehicle 10 faces the rear of the vehicle 10. This value is smaller than the angle at which the part stands up with respect to the lower surface of the under cover 22.
Therefore, it is possible to suppress the air resistance acting on the air flowing on the surface of the lateral rib 38 during traveling, which is more advantageous for suppressing the air resistance of the under cover 22.
Further, water adhering to the surface of the lateral rib 38 during traveling can be efficiently guided to the rear, which is more advantageous in efficiently removing water from the lower surface of the under cover 22.

また、本実施の形態では、隣り合う縦リブ３６から延在する横リブ３８の間に、隣り合う縦リブ３６の横リブ３８に平行する互いに延在方向が異なる直線部が車両１０の前後方向に沿ってジグザグ状に接続されて構成された補強リブ４０を設けたので、アンダーカバー２２の薄型化および軽量化を図りつつあらゆる方向からの強度が確保され、剛性を確保する上でより一層有利となり、空気抵抗の抑制を図る上でも有利となる。   Further, in the present embodiment, the linear portions having different extending directions parallel to the horizontal ribs 38 of the adjacent vertical ribs 36 are arranged between the horizontal ribs 38 extending from the adjacent vertical ribs 36 in the longitudinal direction of the vehicle 10. Since the reinforcing rib 40 configured to be connected in a zigzag manner is provided along the bottom of the under cover 22, the strength and strength of the under cover 22 can be ensured while reducing the thickness and weight of the under cover 22. Therefore, it is advantageous for suppressing air resistance.

また、本実施の形態では、アンダーカバー２２は、車体１２の下部に配置されたバッテリケース２８の下面を覆うように構成されている。
したがって、バッテリケース２８が車体１２の下部に大きなスペースを占有することからアンダーカバー２２の面積が大きい電気自動車の場合に、アンダーカバー２２の剛性を確保しつつ軽量化を図れ、かつ、走行時の空気抵抗の低減を図る上でより一層有利となる。 In the present embodiment, the under cover 22 is configured to cover the lower surface of the battery case 28 disposed at the lower portion of the vehicle body 12.
Therefore, since the battery case 28 occupies a large space below the vehicle body 12, in the case of an electric vehicle having a large area of the under cover 22, it is possible to reduce the weight while securing the rigidity of the under cover 22, and at the time of traveling This is even more advantageous in reducing air resistance.

なお、本実施の形態では、アンダーカバー２２が設けられる車両１０が電気自動車であり、アンダーカバー２２がバッテリケース２８を覆うように構成されている場合について説明した。しかしながら、本発明は、電気自動車に限定されるものではなく、ガソリンエンジン車、ディーゼルエンジン車、ハイブリッド自動車の車体１２の下部を覆うアンダーカバー２２に広く適用可能である。   In the present embodiment, the case where the vehicle 10 provided with the under cover 22 is an electric vehicle and the under cover 22 is configured to cover the battery case 28 has been described. However, the present invention is not limited to an electric vehicle, and can be widely applied to the undercover 22 that covers the lower portion of the vehicle body 12 of a gasoline engine vehicle, a diesel engine vehicle, or a hybrid vehicle.

１０……車体、１２……車体、１４……走行用モータ、１６……前輪、１８……後輪、２０……バッテリパック、２２……アンダーカバー、２４……サイドメンバ、２６……フロアパネル、２８……バッテリケース、３０Ａ……前カバー部、３０Ｂ……後カバー部、３００２……平坦面部、３００４……取付座、３４Ａ……前カバー用シールド部材、３４Ｂ……後カバー用シールド部材、３６……縦リブ、３８……横リブ、４０……補強リブ。   10 ... body, 12 ... body, 14 ... motor, 16 ... front wheel, 18 ... rear wheel, 20 ... battery pack, 22 ... under cover, 24 ... side member, 26 ... floor Panel, 28 ... Battery case, 30A ... Front cover part, 30B ... Rear cover part, 3002 ... Flat surface part, 3004 ... Mounting seat, 34A ... Shielding member for front cover, 34B ... Shield for rear cover Member, 36 ... vertical rib, 38 ... horizontal rib, 40 ... reinforcing rib.

Claims (6)

車体の下部を覆うアンダーカバーであって、
前記アンダーカバーの下面から突出形成され、車幅方向に間隔をおき車両の前後方向に延在する複数の縦リブと、
前記アンダーカバーの下面から突出形成され、前記縦リブから車幅方向かつ車両の後方に向かって延在する横リブとを備える、
ことを特徴とするアンダーカバー。 An undercover covering the bottom of the car body,
A plurality of vertical ribs that protrude from the lower surface of the under cover and extend in the vehicle front-rear direction at intervals in the vehicle width direction;
A lateral rib that protrudes from the lower surface of the under cover and extends from the longitudinal rib in the vehicle width direction and toward the rear of the vehicle,
Undercover characterized by that. 隣り合う前記縦リブから延在する前記横リブは、それらの後端の位置が車両の前後方向においてずらされている、
ことを特徴とする請求項１記載のアンダーカバー。 The horizontal ribs extending from the adjacent vertical ribs have their rear end positions shifted in the longitudinal direction of the vehicle.
The undercover according to claim 1. 隣り合う前記縦リブから延在する前記横リブの間に、前記アンダーカバーの下面から突出形成され、前記隣り合う前記縦リブから延在する前記横リブに平行する互いに延在方向が異なる直線部が車両の前後方向に沿ってジグザグ状に接続された補強リブをさらに備える、
ことを特徴とする請求項１または２記載のアンダーカバー。 Between the horizontal ribs extending from the adjacent vertical ribs, the linear portions are formed so as to protrude from the lower surface of the under cover and have different extending directions parallel to the horizontal ribs extending from the adjacent vertical ribs. Further comprises reinforcing ribs connected in a zigzag shape along the longitudinal direction of the vehicle,
The under cover according to claim 1, wherein the under cover is provided. 前記横リブをその延在方向と直交する平面で切断した断面は、車両の前方に対向する部分の前記アンダーカバーの下面に対して起立する角度が、車両の後方に対向する部分の前記アンダーカバーの下面に対して起立する角度よりも小さい値となっている、
ことを特徴とする請求項１から３に何れか１項記載のアンダーカバー。 The cross section of the transverse rib cut along a plane perpendicular to the extending direction thereof is such that the angle at which the cross rib stands up with respect to the lower surface of the under cover of the portion facing the front of the vehicle is the portion of the under cover facing the rear of the vehicle. The value is smaller than the angle of standing with respect to the lower surface of the
The undercover according to any one of claims 1 to 3, wherein the undercover is provided. 前記アンダーカバーは、車両の前後方向において前記アンダーカバーの中間部から前後に分離可能な前カバー部と後カバー部とで構成されている、
ことを特徴とする請求項１から４に何れか１項記載のアンダーカバー。 The under cover includes a front cover portion and a rear cover portion that are separable from the middle portion of the under cover in the front-rear direction of the vehicle.
The undercover according to any one of claims 1 to 4, wherein the undercover is provided. 前記アンダーカバーは、電気自動車の下部に配置されたバッテリケースの下面を覆うように構成されている、
ことを特徴とする請求項１から５に何れか１項記載のアンダーカバー。 The under cover is configured to cover a lower surface of a battery case disposed at a lower portion of the electric vehicle.
The undercover according to any one of claims 1 to 5, wherein the undercover is provided.
JP2012036240A 2012-02-22 2012-02-22 Under cover Pending JP2013169936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012036240A JP2013169936A (en) 2012-02-22 2012-02-22 Under cover

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012036240A JP2013169936A (en) 2012-02-22 2012-02-22 Under cover

Publications (1)

Publication Number Publication Date
JP2013169936A true JP2013169936A (en) 2013-09-02

Family

ID=49264155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012036240A Pending JP2013169936A (en) 2012-02-22 2012-02-22 Under cover

Country Status (1)

Country Link
JP (1) JP2013169936A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017196958A (en) * 2016-04-26 2017-11-02 トヨタ自動車株式会社 Battery mounting structure of vehicle
JP2018030379A (en) * 2016-08-22 2018-03-01 マツダ株式会社 Flow straightening structure for vehicle lower part
KR101880826B1 (en) * 2016-12-29 2018-07-20 한화첨단소재 주식회사 Under cover for vehicle and method thereof
JP2019142416A (en) * 2018-02-22 2019-08-29 トヨタ自動車株式会社 Vehicle lower part structure
CN111824269A (en) * 2019-04-10 2020-10-27 现代自动车株式会社 Middle floor structure for vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017196958A (en) * 2016-04-26 2017-11-02 トヨタ自動車株式会社 Battery mounting structure of vehicle
JP2018030379A (en) * 2016-08-22 2018-03-01 マツダ株式会社 Flow straightening structure for vehicle lower part
KR101880826B1 (en) * 2016-12-29 2018-07-20 한화첨단소재 주식회사 Under cover for vehicle and method thereof
JP2019142416A (en) * 2018-02-22 2019-08-29 トヨタ自動車株式会社 Vehicle lower part structure
JP6992585B2 (en) 2018-02-22 2022-01-13 トヨタ自動車株式会社 Vehicle undercarriage
CN111824269A (en) * 2019-04-10 2020-10-27 现代自动车株式会社 Middle floor structure for vehicle

Similar Documents

Publication Publication Date Title
JP7405299B2 (en) Battery mounting structure
CN108058745B (en) Vehicle lower structure
JP5061941B2 (en) Vehicle battery mounting structure
JP5472361B2 (en) Vehicle battery mounting structure
JP5966824B2 (en) Track-type electric vehicle frame structure
JP5967477B2 (en) Battery pack
EP3159199B1 (en) Vehicle underfloor structure
US10549619B2 (en) Vehicle battery unit
JP5698581B2 (en) Electric vehicle body floor structure
US20170106916A1 (en) Vehicle floor lower structure
JP2013169936A (en) Under cover
JP2014019203A (en) Battery pack tray
JP2013147137A (en) Floor structure of electrically driven vehicle
JP6610412B2 (en) Vehicle battery mounting structure
JP2014019260A (en) Positioning pin bracket for battery pack
JP2017196942A (en) Battery mounting structure of vehicle
WO2018040851A1 (en) Vehicle
US11364958B2 (en) Vehicle body lower structure
US11433949B2 (en) Body of electric vehicle
CN112572123A (en) Vehicle lower structure
JP6848543B2 (en) Body structure of electric vehicle
JP2011111124A (en) Rear structure of vehicle
JP2015209117A (en) Automobile battery mounting structure
JP5609495B2 (en) Battery mounting structure for vehicles
CN216231805U (en) Cross beam assembly for two-row seat of vehicle and vehicle with cross beam assembly