JP4736455B2 - Motor room component mounting structure and motor room shock absorption structure - Google Patents

Motor room component mounting structure and motor room shock absorption structure Download PDF

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JP4736455B2
JP4736455B2 JP2005034699A JP2005034699A JP4736455B2 JP 4736455 B2 JP4736455 B2 JP 4736455B2 JP 2005034699 A JP2005034699 A JP 2005034699A JP 2005034699 A JP2005034699 A JP 2005034699A JP 4736455 B2 JP4736455 B2 JP 4736455B2
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motor
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component mounting
motor room
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JP2006219020A (en
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忠義 橋村
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Nissan Motor Co Ltd
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Description

本発明は、車両前部におけるモータルーム内部品搭載構造およびモータルーム内衝撃吸収構造に関する。   The present invention relates to a component mounting structure in a motor room and a shock absorbing structure in a motor room at the front of the vehicle.

車両に搭載する高強度の硬物部品として、例えば電動エアコンコンプレッサは、ガソリンエンジンと電気モータの双方を駆動源として使用する、いわゆるハイブリッド車両では、従来のガソリン車と同様にエンジンに取り付けている。   As a high-strength hard part mounted on a vehicle, for example, an electric air-conditioning compressor is attached to an engine in a so-called hybrid vehicle using both a gasoline engine and an electric motor as drive sources, as in a conventional gasoline vehicle.

一方、電気自動車では、例えば下記特許文献１に記載されているように、高強度の硬物部品となるエアコンコンプレッサを、モータルーム内にて、車体構造部材であるサイドメンバに連結した部品搭載フレーム上に取り付けている。
特開平８−３１０２５２号公報 On the other hand, in an electric vehicle, for example, as described in Patent Document 1 below, a component mounting frame in which an air conditioner compressor that is a high-strength hard part is connected to a side member that is a vehicle body structural member in a motor room. It is mounted on the top.
JP-A-8-310252

しかしながら、上記した従来のモータルーム内部品搭載構造では、エアコンコンプレッサなどの高強度の硬物部品を、部品搭載フレーム上に取り付けているので、例えば車両の前面衝突時に、硬物部品がモータルーム後方に移動し、モータルーム後方の車体パネル部品の変形量を増大させる恐れがある。   However, in the conventional motor room component mounting structure described above, high strength hard parts such as an air conditioner compressor are mounted on the component mounting frame. There is a risk of increasing the amount of deformation of the body panel components behind the motor room.

そこで、本発明は、車両の前面衝突時に、モータルーム内に設置する硬物部品の車両後方への移動を抑えることを目的としている。   In view of the above, an object of the present invention is to suppress the movement of hard parts installed in the motor room to the rear of the vehicle at the time of a frontal collision of the vehicle.

本発明は、車両前部のモータルーム内に収容する車両駆動用のモータに、車体構造部材に比べて高強度な硬物部品を取り付けるとともに、前記モータの上方に配置する部品を支持する部品搭載フレームの車幅方向両端をサイドメンバに連結し、前記硬物部品の少なくとも一部を前記部品搭載フレームより車両前方に配置し、前記モータを、少なくとも車両後端側が前記サイドメンバに連結されているサスペンションメンバに取り付け、前記硬物部品を、前記モータの車両前方かつ上方に配置し、前記硬物部品が、車両後方へ移動して前記部品搭載フレームに干渉して衝撃を吸収する際に、前記サスペンションメンバが、その車両後端側の前記サイドメンバへの連結部を支点として回転することで、前記硬物部品および前記モータが下方に移動するように、前記モータの中心を、前記サスペンションメンバの前記サイドメンバへの前記連結部と前記硬物部品の中心とを結ぶ直線より下方に配置することを最も主要な特徴とする。 The present invention mounts a hard part having a strength higher than that of a vehicle body structural member on a vehicle driving motor housed in a motor room in a front part of the vehicle and supports a part disposed above the motor. Both ends of the frame in the vehicle width direction are connected to a side member, at least a part of the hard part is arranged in front of the vehicle from the component mounting frame , and the motor is connected to the side member at least on the vehicle rear end side. The hard part is attached to a suspension member, and the hard part is arranged on the front and upper side of the motor, and the hard part moves to the rear of the vehicle and interferes with the part mounting frame to absorb the impact. The hard member and the motor move downward as the suspension member rotates with the connecting portion to the side member on the vehicle rear end side as a fulcrum. So that, the center of the motor, the most important feature to place from below a straight line connecting the center of the connecting portion and the hard material component to said side members of said suspension member.

本発明によれば、車体構造部材に比べて高強度な硬物部品を、車両駆動用のモータに取り付けた上で、部品搭載フレームより車体前方に配置することで、車両の前面衝突時に、硬物部品がその車両後方に位置する部品搭載フレームに干渉して衝撃を吸収しながら、この衝撃をサイドメンバに効率よく伝達し、モータルーム内に設置する硬物部品の車両後方への移動を抑えることができ、モータルーム後方の車体パネル部品の変形量増大を防止することができる。
また、硬物部品は、部品搭載フレームに干渉した後、その下部後方に位置するモータを下方に移動させるよう作用し、この際、サイドメンバに車両後端側を連結部にて連結しているサスペンションメンバが、連結部を支点として回転し、これに伴いモータおよび硬物部品が下方へ移動する。これにより、モータルーム内に設置する硬物部品の車両後方への移動を抑えることができ、モータルーム後方の車体パネル部品の変形量増大を防止することができる。 According to the present invention, a hard part having a strength higher than that of the vehicle body structural member is attached to the motor for driving the vehicle, and is disposed in front of the vehicle body from the component mounting frame, so that the hard part can be hardened at the time of a vehicle frontal collision. While the physical component interferes with the component mounting frame located behind the vehicle and absorbs the impact, the impact is efficiently transmitted to the side member, and the movement of the hard component installed in the motor room to the rear of the vehicle is suppressed. It is possible to prevent an increase in the amount of deformation of the vehicle body panel component behind the motor room.
Further, after the hard part component interferes with the component mounting frame, it operates to move the motor located behind the lower part downward, and at this time, the vehicle rear end side is connected to the side member by the connecting part. The suspension member rotates with the connecting portion as a fulcrum, and accordingly, the motor and the hard part move downward. Thereby, the movement to the vehicle rear of the hard part installed in the motor room can be suppressed, and an increase in the deformation amount of the vehicle body panel part behind the motor room can be prevented.

以下、本発明の実施の形態を図面に基づき説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の一実施形態に係わるモータルーム内部品搭載構造を示す、車両前部の側面断面図、図２は、モータルーム内の平面図である。なお、図１，２中の矢印ＦＲで示す方向が車両前方である。   FIG. 1 is a side cross-sectional view of a front part of a vehicle showing a component mounting structure in a motor room according to an embodiment of the present invention, and FIG. 2 is a plan view in the motor room. In addition, the direction shown by the arrow FR in FIGS.

車両１の前部のモータルーム３は、図１に示す前方のラジエータ５（図２では省略）と、後方のダッシュパネル７と、車幅方向両側のフードリッジパネル９との間に形成されている。   The motor room 3 in the front part of the vehicle 1 is formed between a front radiator 5 (not shown in FIG. 2) shown in FIG. 1, a rear dash panel 7, and hood ridge panels 9 on both sides in the vehicle width direction. Yes.

また、車両１の車幅方向両側のフードリッジパネル９の下部には、車両前後方向に延びるサイドメンバであるフロントサイドメンバ１１を設けてある。フロントサイドメンバ１１は、図１に示すようにモータルーム３から車両後方に向かうに従って屈曲部１１ａにて下方に屈曲し、モータルーム３の後方の車室側部分では車両の床下位置にて車両後方に延びている。   A front side member 11 that is a side member extending in the vehicle front-rear direction is provided at the lower part of the hood ridge panel 9 on both sides in the vehicle width direction of the vehicle 1. As shown in FIG. 1, the front side member 11 is bent downward at a bent portion 11 a as it goes from the motor room 3 toward the rear of the vehicle. It extends to.

モータルーム３内における左右一対のフロントサイドメンバ１１には、車幅方向に延びる２本の部品搭載フレーム１３の端部を連結し、部品搭載フレーム１３上には、インバータなどの電力変換装置１５を設置する。電力変換装置１５は、車両１に搭載している図示しない燃料電池で発電した電力を、例えば直流から交流に変換して後述する車両駆動用のモータ１７に供給するなどの機能を備える。   End portions of two component mounting frames 13 extending in the vehicle width direction are connected to the pair of left and right front side members 11 in the motor room 3, and a power conversion device 15 such as an inverter is provided on the component mounting frame 13. Install. The power conversion device 15 has a function of, for example, converting electric power generated by a fuel cell (not shown) mounted on the vehicle 1 from direct current to alternating current and supplying it to a vehicle driving motor 17 described later.

車両駆動用のモータ１７は、電力変換装置１５の下方に位置し、その下部後方側をサスペンションメンバ１９上に固定する一方、その上部を図示しないブラケットなどを介してフロントサイドメンバ１１に固定する。図３は、図２における部品搭載フレーム１３，電力変換装置１５およびダッシュパネル７を省略した平面図である。   The motor 17 for driving the vehicle is located below the power converter 15 and fixes the lower rear side thereof to the suspension member 19 while fixing the upper portion thereof to the front side member 11 via a bracket (not shown). 3 is a plan view in which the component mounting frame 13, the power conversion device 15, and the dash panel 7 in FIG. 2 are omitted.

サスペンションメンバ１９は、図４に平面図、図５に側面図としてフロントサイドメンバ１１とともに示すように、左右のフロントサイドメンバ１１に対し、後端を後方連結部２１にて連結固定するとともに、前端部付近の上部を前方連結部２３にて固定する。   The suspension member 19 is connected and fixed to the left and right front side members 11 by a rear connecting portion 21 as shown in a plan view in FIG. 4 and a side view in FIG. The upper part in the vicinity of the part is fixed by the front connecting part 23.

そして、上記したモータ１７の車両前方かつ上方位置には、硬物部品としての空気コンプレッサ２５を一体に取り付ける。このとき空気コンプレッサ２５は、その少なくとも一部を、部品搭載フレーム１３より車両前方に配置する。空気コンプレッサ２５は、図示しない燃料電池に供給する空気を圧縮する。   Then, an air compressor 25 as a hard part is integrally attached at the front and upper position of the motor 17 described above. At this time, at least a part of the air compressor 25 is arranged in front of the vehicle with respect to the component mounting frame 13. The air compressor 25 compresses air supplied to a fuel cell (not shown).

なお、上記したフロントサイドメンバ１１，サスペンションメンバ１９，部品搭載フレーム１３は、車体構造部材を構成している。   The front side member 11, the suspension member 19, and the component mounting frame 13 described above constitute a vehicle body structural member.

上記した本実施形態によるモータルーム内部品搭載構造によれば、車両１の前面衝突時に、空気コンプレッサ２５が車両後方に向けて衝撃を受ける際に、その後方の部品搭載フレーム１３に干渉して衝撃を吸収し、この衝撃はさらに、部品搭載フレーム１３を連結しているサイドメンバ１１に効率よく伝達される。   According to the component mounting structure in the motor room according to the above-described embodiment, when the air compressor 25 receives an impact toward the rear of the vehicle at the time of a frontal collision of the vehicle 1, the impact is caused by the interference with the component mounting frame 13 behind the air compressor 25. This impact is further efficiently transmitted to the side member 11 connecting the component mounting frame 13.

また、空気コンプレッサ２５は、部品搭載フレーム１３に干渉した後、その下部後方に位置するモータ１７を下方に移動させるよう作用し、この際、サイドメンバ１１に連結部である後方連結部２１にて連結しているサスペンションメンバ１９が、この後方連結部２１を中心として、図１中で矢印Ａで示す反時計方向に回転し、これに伴いモータ１７および空気コンプレッサ２５が下方へ移動する。   In addition, after interfering with the component mounting frame 13, the air compressor 25 acts to move the motor 17 located behind the lower part thereof downward, and at this time, the side member 11 is connected to the rear connecting part 21 which is a connecting part. The connected suspension member 19 rotates about the rear connecting portion 21 in the counterclockwise direction indicated by the arrow A in FIG. 1, and the motor 17 and the air compressor 25 move downward accordingly.

この結果、モータルーム３内に設置する硬物部品である空気コンプレッサ２５の車両後方への移動を抑えることができ、モータルーム３後方の車体パネル部品であるダッシュパネル７の変形量増大を防止することができる。   As a result, the movement of the air compressor 25, which is a hard part installed in the motor room 3, to the rear of the vehicle can be suppressed, and an increase in the amount of deformation of the dash panel 7, which is the body panel part behind the motor room 3, can be prevented. be able to.

本発明の一実施形態に係わるモータルーム内部品搭載構造を示す、車両前部の側面断面図である。It is side surface sectional drawing of the vehicle front part which shows the components mounting structure in a motor room concerning one Embodiment of this invention. 図１のモータルーム内の平面図である。It is a top view in the motor room of FIG. 図２における部品搭載フレーム，電力変換装置およびダッシュパネルを省略した平面図である。It is the top view which abbreviate | omitted the component mounting frame, power converter, and dash panel in FIG. サスペンションメンバをフロントサイドメンバとともに示す平面図である。It is a top view which shows a suspension member with a front side member. サスペンションメンバをフロントサイドメンバとともに示す側面図である。It is a side view which shows a suspension member with a front side member.

符号の説明Explanation of symbols

１ 車両
３ モータルーム
１１ フロントサイドメンバ（車体構造部材）
１３ 部品搭載フレーム
１７ 車両駆動用のモータ
１９ サスペンションメンバ
２１ 後方連結部
２５ 空気コンプレッサ（硬物部品） 1 vehicle 3 motor room 11 front side member (body structure member)
13 Component mounting frame 17 Motor for driving vehicle 19 Suspension member 21 Rear connecting portion 25 Air compressor (hard parts)

Claims (3)

車両前部のモータルーム内に収容する車両駆動用のモータに、車体構造部材に比べて高強度な硬物部品を取り付けるとともに、前記モータの上方に配置する部品を支持する部品搭載フレームの車幅方向両端をサイドメンバに連結し、前記硬物部品の少なくとも一部を前記部品搭載フレームより車両前方に配置し、
前記モータを、少なくとも車両後端側が前記サイドメンバに連結されているサスペンションメンバに取り付け、前記硬物部品を、前記モータの車両前方かつ上方に配置し、
前記硬物部品が、車両後方へ移動して前記部品搭載フレームに干渉して衝撃を吸収する際に、前記サスペンションメンバが、その車両後端側の前記サイドメンバへの連結部を支点として回転することで、前記硬物部品および前記モータが下方に移動するように、前記モータの中心を、前記サスペンションメンバの前記サイドメンバへの前記連結部と前記硬物部品の中心とを結ぶ直線より下方に配置することを特徴とするモータルーム内部品搭載構造。 A vehicle body width of a component mounting frame for mounting a hard component having a strength higher than that of a vehicle body structural member to a vehicle driving motor housed in a motor room in a front portion of the vehicle and supporting a component disposed above the motor. Both ends in the direction are connected to side members, and at least a part of the hard part is arranged in front of the vehicle from the part mounting frame ,
The motor is attached to a suspension member having at least a vehicle rear end connected to the side member, and the hard parts are arranged in front of and above the motor of the motor,
When the hard component moves rearward of the vehicle and interferes with the component mounting frame to absorb the impact, the suspension member rotates with the connecting portion to the side member on the vehicle rear end side as a fulcrum. Thus, the center of the motor is below a straight line connecting the connecting part to the side member of the suspension member and the center of the hard part so that the hard part and the motor move downward. Parts mounting structure in the motor room, characterized by the arrangement . 前記硬物部品は、空気コンプレッサであることを特徴とする請求項１に記載のモータルーム内部品搭載構造。 2. The motor room component mounting structure according to claim 1, wherein the hard component is an air compressor. 車両前部のモータルーム内に収容する車両駆動用のモータに、車体構造部材に比べて高強度な硬物部品を取り付け、この硬物部品が車両の前面衝突時に車両後方へ移動する際に、前記モータの上方に位置して部品を搭載する部品搭載フレームに干渉して衝撃を吸収するとともに、この衝撃を前記部品搭載フレームの両端に連結するサイドメンバが吸収するモータルーム内衝撃吸収構造であって、
前記モータを、少なくとも車両後端側が前記サイドメンバに連結されているサスペンションメンバに取り付けるとともに、前記硬物部品を、前記モータの車両前方かつ上方に配置し、前記硬物部品が、車両後方へ移動して前記部品搭載フレームに干渉して衝撃を吸収する際に、前記サスペンションメンバが、その車両後端側の前記サイドメンバへの連結部を支点として回転することで、前記硬物部品および前記モータが下方に移動することを特徴とするモータルーム内衝撃吸収構造。 When mounting a hard part with a strength higher than that of the vehicle body structure member to the motor for driving the vehicle housed in the motor room in the front part of the vehicle, and when the hard part moves to the rear of the vehicle at the time of a frontal collision of the vehicle, The shock absorption structure in the motor room is located above the motor and absorbs shock by interfering with a component mounting frame on which components are mounted, and the impact is absorbed by side members connected to both ends of the component mounting frame. And
The motor is attached to a suspension member at least on the rear end side of the vehicle connected to the side member, and the hard part is disposed in front of and above the motor, so that the hard part moves to the rear of the vehicle. When the suspension member interferes with the component mounting frame and absorbs the impact, the suspension member rotates with the connecting portion to the side member on the vehicle rear end side as a fulcrum, so that the hard component and the motor The shock absorbing structure in the motor room is characterized by moving downward .
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