JP2019162895A - Battery pack attachment structure - Google Patents

Battery pack attachment structure Download PDF

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JP2019162895A
JP2019162895A JP2018050686A JP2018050686A JP2019162895A JP 2019162895 A JP2019162895 A JP 2019162895A JP 2018050686 A JP2018050686 A JP 2018050686A JP 2018050686 A JP2018050686 A JP 2018050686A JP 2019162895 A JP2019162895 A JP 2019162895A
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battery pack
housing
fixing member
floor panel
collision
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JP6996371B2 (en
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大樹 田之上
Daiki Tanoue
大樹 田之上
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Toyota Motor Corp
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Toyota Motor Corp
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    • 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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  • Body Structure For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

To provide a battery pack attachment structure that can inhibit a battery pack from being deformed even when being arranged near an enclosure.SOLUTION: (i) A fixing member 50 includes a deformable portion 55 that is deformed and brought into contact with a surface of an enclosure 40, which is located near a battery pack 30, when a load acting in a direction to move the enclosure 40 toward the battery pack 30 is input at the time of a collision causing a floor panel 20 to be deformed. Therefore, at least a part of the collision energy is spent in deformation of the deformable portion 55. Consequently, the collision impact transmitted to the battery pack 30 can be reduced. (ii) In addition, since the deformable portion 55 is brought into contact with the enclosure 40, the movement of the enclosure 40 toward the battery pack 30 is inhibited by the deformable portion 55. Therefore, the enclosure 40 can be inhibited from making contact with the battery pack 30. From the above descriptions (i), (ii), the battery pack 30 can be inhibited from being deformed.SELECTED DRAWING: Figure 2

Description

本発明は、筐体の近くに配設される電池パックをフロアパネルに取付ける電池パック取付け構造に関する。   The present invention relates to a battery pack mounting structure for mounting a battery pack disposed near a housing to a floor panel.

特開２００４−１７８０８号公報は、電池パックが固定される部分と筐体（バッテリ周辺部品）が固定される部分を含む基板を有し、筐体が固定される基板部分がフロアパネルに対して傾けられている、電池パック取付け構造を開示している。該公報開示の構造では、衝突荷重を受けると、筐体が固定される基板部分が回転し、筐体がシートレールに衝突するようになっている。   Japanese Patent Application Laid-Open No. 2004-17808 has a substrate including a portion to which a battery pack is fixed and a portion to which a housing (battery peripheral component) is fixed, and the substrate portion to which the housing is fixed is located on the floor panel. A tilted battery pack mounting structure is disclosed. In the structure disclosed in the publication, when a collision load is received, the substrate portion to which the housing is fixed rotates, and the housing collides with the seat rail.

しかし、上記公報開示の構造には、つぎの問題点がある。
筐体の高さが高い場合など、筐体のサイズによっては、筐体が回転したときに筐体が電池パックに接触してしまい電池パックが変形するおそれがある。 However, the structure disclosed in the above publication has the following problems.
Depending on the size of the housing, such as when the height of the housing is high, the housing may come into contact with the battery pack when the housing rotates and the battery pack may be deformed.

特開２００４−１７８０８号公報Japanese Patent Laid-Open No. 2004-17808

本発明の目的は、筐体の近くに配設される場合であっても電池パックが変形することを抑制できる電池パック取付け構造を提供することにある。 An object of the present invention is to provide a battery pack mounting structure that can suppress deformation of a battery pack even when it is disposed near a housing.

上記目的を達成する本発明はつぎの通りである。
（１） フロアパネルと、
前記フロアパネルの上側または下側に配置され前記フロアパネルに固定部材を介して固定される電池パックと、
前記フロアパネルの上側と下側のうち前記電池パックと同じ側に配置され前記フロアパネルに前記固定部材を介して固定される筐体と、
を有し、
前記固定部材は、前記筐体よりも前記電池パックに近い位置にあり前記フロアパネルに締結固定される電池パック側締結部と、前記電池パックよりも前記筐体に近い位置にあり前記フロアパネルに締結固定される筐体側締結部と、を有しており、さらに、前記電池パック側締結部と前記筐体側締結部との間に、前記フロアパネルの変形を伴う衝突時であって前記筐体が前記電池パックに近づく方向の荷重が入力された時に、変形して前記筐体の前記電池パック側の面に接触する変形部を有する、電池パック取付け構造。 The present invention for achieving the above object is as follows.
(1) Floor panel,
A battery pack disposed on the upper side or the lower side of the floor panel and fixed to the floor panel via a fixing member;
A housing that is arranged on the same side as the battery pack among the upper and lower sides of the floor panel and is fixed to the floor panel via the fixing member,
Have
The fixing member is closer to the battery pack than the housing and is fastened and fixed to the floor panel. The fixing member is closer to the housing than the battery pack. A housing-side fastening portion that is fastened and fixed, and further, the housing is in a collision with deformation of the floor panel between the battery pack-side fastening portion and the housing-side fastening portion. A battery pack mounting structure having a deforming portion that deforms and contacts the surface of the housing on the battery pack side when a load in a direction approaching the battery pack is input.

上記（１）の電池パック取付け構造によれば、つぎの効果を得ることができる。
（ｉ）固定部材が、フロアパネルの変形を伴う衝突時であって筐体が電池パックに近づく方向の荷重が入力された時に、変形して筐体の電池パック側の面に接触する変形部を有するため、衝突エネルギーの少なくとも一部が変形部の変形に費やされる。よって、電池パックに伝わる衝突時の衝撃を低減させることができる。
（ｉｉ）また、変形部が筐体に接触するため、変形部にて筐体の電池パックに接近する方向への移動が抑えられる。そのため、筐体が電池パックに接触してしまうことを抑制できる。
上記（ｉ）、（ｉｉ）により、電池パックの変形を抑制できる。 According to the battery pack mounting structure of (1) above, the following effects can be obtained.
(I) A deforming portion that deforms and contacts the surface of the casing on the side of the battery pack when a load in a direction in which the casing approaches the battery pack is input at the time of a collision involving deformation of the floor panel. Therefore, at least a part of the collision energy is spent on the deformation of the deformation portion. Therefore, the impact at the time of the collision transmitted to the battery pack can be reduced.
(Ii) Further, since the deforming portion comes into contact with the housing, movement of the housing in the direction approaching the battery pack is suppressed at the deforming portion. Therefore, it can suppress that a housing | casing contacts a battery pack.
Due to the above (i) and (ii), deformation of the battery pack can be suppressed.

本発明実施例１の電池パック取付け構造の模式平面図である。It is a model top view of the battery pack attachment structure of this invention Example 1. FIG. 本発明実施例１の電池パック取付け構造における、筐体の横（車両左右方向外側）で衝突し第１固定部材に車両幅方向の衝突荷重がかかった場合の、第１固定部材とその近傍の部分模式断面図である。（ａ）は、衝突前の状態を示している。（ｂ）は、衝突後の状態を示している。In the battery pack mounting structure according to the first embodiment of the present invention, the first fixing member and the vicinity of the first fixing member when a collision load in the vehicle width direction is applied to the first fixing member due to a collision at the side of the casing (outside in the vehicle left-right direction). It is a partial schematic cross section. (A) has shown the state before a collision. (B) has shown the state after a collision. 本発明実施例１の電池パック取付け構造における、筐体より車両前側で衝突し第２固定部材に車両後側成分を有する衝突荷重がかかった場合の、第２固定部材とその近傍の部分模式断面図である。（ａ）は、衝突前の状態を示している。（ｂ）は、衝突後の状態を示している。In the battery pack mounting structure according to Embodiment 1 of the present invention, the second fixing member and a partial schematic cross section in the vicinity thereof when a collision load having a vehicle rear side component is applied to the second fixing member due to collision on the vehicle front side from the housing FIG. (A) has shown the state before a collision. (B) has shown the state after a collision. 本発明実施例２の電池パック取付け構造の部分模式断面図である。（ａ）は、衝突前の状態を示している。（ｂ）は、衝突後の状態を示している。It is a partial schematic cross section of the battery pack mounting structure of Example 2 of the present invention. (A) has shown the state before a collision. (B) has shown the state after a collision. 本発明実施例２の電池パック取付け構造の変形例を示す部分模式断面図である。It is a partial schematic cross section which shows the modification of the battery pack attachment structure of this invention Example 2. FIG.

図１〜図３は、本発明実施例１の電池パック取付け構造を示し、図４、図５は、本発明実施例２の電池パック取付け構造を示す。本発明実施例１，２にわたって共通する部分には、本発明実施例１，２にわたって同じ符号を付してある。なお、図中ＵＰは上方を示し、ＲＲは車両後方を示し、ＯＵＴは車両幅方向外側を示す。   1 to 3 show a battery pack mounting structure according to Embodiment 1 of the present invention, and FIGS. 4 and 5 show a battery pack mounting structure according to Embodiment 2 of the present invention. Portions common to the first and second embodiments of the present invention are denoted by the same reference numerals throughout the first and second embodiments of the present invention. In the figure, UP indicates the upper side, RR indicates the rear of the vehicle, and OUT indicates the outer side in the vehicle width direction.

まず、本発明実施例１，２にわたって共通する部分を説明する。
本発明実施例の電池パック取付け構造（以下、単に取付け構造ともいう）１０は、図１に示すように、車両のフロアパネル２０と、電池パック３０と、筐体４０と、固定部材５０と、を有する。なお、車両は、エンジンとモータとにより走行するハイブリッド自動車であってもよく、モータのみにより走行する電気自動車であってもよい。 First, parts common to the first and second embodiments of the present invention will be described.
As shown in FIG. 1, a battery pack mounting structure (hereinafter also simply referred to as a mounting structure) 10 according to an embodiment of the present invention includes a vehicle floor panel 20, a battery pack 30, a housing 40, a fixing member 50, Have The vehicle may be a hybrid vehicle that travels by an engine and a motor, or may be an electric vehicle that travels only by a motor.

フロアパネル２０は、車両幅方向中央部で車両前後方向に延びるトンネル部２１と、トンネル部２１の車両幅方向の両外側にある一般部２２と、を有する。トンネル部２１は一般部２２に比べて上方位置にある。   The floor panel 20 includes a tunnel portion 21 that extends in the vehicle front-rear direction at a vehicle width direction central portion, and general portions 22 that are on both outer sides of the tunnel portion 21 in the vehicle width direction. The tunnel part 21 is located above the general part 22.

電池パック３０は、フロアパネル２０の上側に配置されている。ただし、電池パック３０は、フロアパネル３０の下側に配置されていてもよい。以下、本発明実施例では、電池パック３０がフロアパネル２０の上側に配置される場合を例にとって説明する。   Battery pack 30 is arranged on the upper side of floor panel 20. However, the battery pack 30 may be disposed below the floor panel 30. Hereinafter, in the embodiment of the present invention, a case where the battery pack 30 is disposed on the upper side of the floor panel 20 will be described as an example.

電池パック３０は、フロアパネル２０に固定部材５０を介して固定して取付けられている。電池パック３０がフロアパネル２０に固定される場所は、フロアパネルのトンネル部２１であってもよく、フロアパネル２０の一般部２２であってもよい。電池パック３０は、トンネル部２１の幅（車両幅方向長さ）と略同じ幅を有しトンネル部２１上に配置される第１電池パック３１と、第１電池パック３１の車両後側で車両幅方向長さがトンネル部２１および第１電池パック３１よりも大とされた第２電池パック３２と、を有する。   The battery pack 30 is fixedly attached to the floor panel 20 via a fixing member 50. The place where the battery pack 30 is fixed to the floor panel 20 may be the tunnel portion 21 of the floor panel or the general portion 22 of the floor panel 20. The battery pack 30 has a width substantially the same as the width of the tunnel portion 21 (length in the vehicle width direction) and is disposed on the tunnel portion 21 and a vehicle on the vehicle rear side of the first battery pack 31. A second battery pack 32 having a width direction length larger than that of the tunnel portion 21 and the first battery pack 31.

筐体４０は、フロアパネル２０の上側と下側のうち電池パック３０と同じ側である上側に配置されている。筐体４０は、電池パック３０と同じく、フロアパネル２０に固定部材５０を介して固定して取付けられている。筐体４０は、特に限定されるものではないが、たとえば、補機バッテリ、電池パックＥＣＵ(Electronic Control Unit)等である。   The casing 40 is disposed on the upper side, which is the same side as the battery pack 30, of the upper side and the lower side of the floor panel 20. Similar to the battery pack 30, the housing 40 is fixedly attached to the floor panel 20 via a fixing member 50. The housing 40 is not particularly limited, and is, for example, an auxiliary battery, a battery pack ECU (Electronic Control Unit), or the like.

筐体４０は、第１電池パック３１の車両幅方向外側で、第２電池パック３２の車両前側に配置されている。筐体４０は、平面視で、電池パック３０から離れて（距離をおいて、間隔をおいて）配置されている。   The casing 40 is disposed on the vehicle front side of the second battery pack 32 on the outer side in the vehicle width direction of the first battery pack 31. The housing 40 is arranged away from the battery pack 30 (at a distance and at an interval) in plan view.

筐体４０は、その車両前側端が電池パック３０よりも車両前側に位置しており、その車両幅方向外側端が電池パック３０よりも車両幅方向外側に位置している。筐体４０の電池パック３０に対する具体的な位置関係は、つぎのようになっている。
（ａ）筐体４０の車両前側面４０ａは、第１電池パック３１の車両前側面３１ａよりも車両前側にある。
（ｂ）筐体４０の車両後側面４０ｂは、第２電池パック３２の車両前側面３２ａに車両前後方向に対向する位置にあり、第１電池パック３１の車両後側面３１ｂよりも車両前側にある。
（ｃ）筐体４０の車両幅方向内側面４０ｃは、第１電池パック３１の車両幅方向外側面３１ｃに車両幅方向に対向する位置にあり、第２電池パック３２の車両幅方向外側面３２ｂより車両幅方向内側にある。
（ｄ）筐体４０の車両幅方向外側面４０ｄは、第２電池パック３２の車両幅方向外側面３２ｂよりも車両幅方向外側にある。 The housing 40 has a vehicle front side end located on the vehicle front side with respect to the battery pack 30, and a vehicle width direction outer side end located on the vehicle width direction outer side with respect to the battery pack 30. The specific positional relationship of the housing 40 with respect to the battery pack 30 is as follows.
(A) The vehicle front side surface 40 a of the housing 40 is on the vehicle front side with respect to the vehicle front side surface 31 a of the first battery pack 31.
(B) The vehicle rear side surface 40b of the housing 40 is in a position facing the vehicle front side surface 32a of the second battery pack 32 in the vehicle front-rear direction, and is located on the vehicle front side of the vehicle rear side surface 31b of the first battery pack 31. .
(C) The vehicle width direction inner side surface 40 c of the housing 40 is located at a position facing the vehicle width direction outer side surface 31 c of the first battery pack 31 in the vehicle width direction, and the vehicle width direction outer side surface 32 b of the second battery pack 32. More on the inside in the vehicle width direction.
(D) The vehicle width direction outer side surface 40 d of the housing 40 is located on the vehicle width direction outer side with respect to the vehicle width direction outer side surface 32 b of the second battery pack 32.

電池パック３０と筐体４０は、ともに、同じ固定部材５０を介してフロアパネル２０に固定して取付けられている。電池パック３０と固定部材５０との固定、筐体４０と固定部材５０との固定は、いずれも、溶接などの接合で行われていてもよく、図示略のボルト等を用いた締結にて行われていてもよい。固定部材５０は、フロアパネル２０に、図２〜図４に示すように直接固定されていてもよく、図５に示すようにフロアパネル２０と固定部材５０との間に取付けブラケット６０が設けられている場合には該取付けブラケット６０を介して固定されていてもよい。   Both the battery pack 30 and the housing 40 are fixedly attached to the floor panel 20 via the same fixing member 50. The fixing between the battery pack 30 and the fixing member 50 and the fixing between the housing 40 and the fixing member 50 may be performed by joining such as welding, and are performed by fastening using bolts or the like not shown. It may be broken. The fixing member 50 may be directly fixed to the floor panel 20 as shown in FIGS. 2 to 4, and a mounting bracket 60 is provided between the floor panel 20 and the fixing member 50 as shown in FIG. 5. If it is, it may be fixed via the mounting bracket 60.

固定部材５０は、ブラケットといってもよい。固定部材５０は、フロアパネル２０の上側と下側のうち電池パック３０および筐体４０と同じ側である上側に配置されている。固定部材５０は、複数設けられており、図１に示すように、車両幅方向を長手方向としており第１電池パック３１と筐体４０との間にわたって設けられる第１固定部材５１と、車両前後方向を長手方向としており第２電池パック３２と筐体４０との間にわたって設けられる第２固定部材５２と、を有する。   The fixing member 50 may be called a bracket. The fixing member 50 is disposed on the upper side, which is the same side as the battery pack 30 and the housing 40, of the upper side and the lower side of the floor panel 20. A plurality of fixing members 50 are provided, and as shown in FIG. 1, a first fixing member 51 provided between the first battery pack 31 and the housing 40 with the vehicle width direction as a longitudinal direction, and the front and rear of the vehicle The second fixing member 52 is provided between the second battery pack 32 and the housing 40 and has a longitudinal direction.

第１固定部材５１は、前側第１固定部材５１ａと、前側第１固定部材５１ａの車両後側に間隔をおいて配置される後側第１固定部材５１ｂと、を有する。前側第１固定部材５１ａは、第１電池パック３１の車両前側端部と筐体４０の車両前側端部との間にわたって設けられている。後側第１固定部材５１ｂは、第１電池パック３１の車両後側端部またはその近傍と筐体４０の車両後側端部との間にわたって設けられている。第２固定部材５２は、第２電池パック３２の車両幅方向外側端部と筐体４０の車両後側端部かつ車両幅方向中間部との間にわたって設けられている。   The first fixing member 51 includes a front side first fixing member 51a and a rear side first fixing member 51b disposed at an interval on the vehicle rear side of the front side first fixing member 51a. The front first fixing member 51 a is provided between the vehicle front end of the first battery pack 31 and the vehicle front end of the housing 40. The rear first fixing member 51 b is provided between the vehicle rear side end portion of the first battery pack 31 or the vicinity thereof and the vehicle rear side end portion of the housing 40. The second fixing member 52 is provided between the vehicle width direction outer side end portion of the second battery pack 32 and the vehicle rear side end portion and the vehicle width direction intermediate portion of the housing 40.

固定部材５０は、図２〜図５に示すように、筐体４０よりも電池パック３０に近い位置にありフロアパネル２０に図示略のボルト等を用いて締結固定される電池パック側締結部５３と、電池パック３０よりも筐体４０に近い位置にありフロアパネル２０に図示略のボルト等を用いて締結固定される筐体側締結部５４と、を有する。電池パック側締結部５３は、主に、電池パック３０をフロアパネル２０に固定するために設けられており、筐体側締結部５４は、主に筐体４０をフロアパネル２０に固定するために設けられている。   As shown in FIGS. 2 to 5, the fixing member 50 is located closer to the battery pack 30 than the housing 40, and is fastened and fixed to the floor panel 20 using bolts or the like (not shown). And a housing side fastening portion 54 that is located closer to the housing 40 than the battery pack 30 and fastened and fixed to the floor panel 20 using bolts or the like not shown. The battery pack side fastening portion 53 is provided mainly for fixing the battery pack 30 to the floor panel 20, and the housing side fastening portion 54 is provided mainly for fixing the housing 40 to the floor panel 20. It has been.

固定部材５０は、固定部材５０の側面視で電池パック側締結部５３と筐体側締結部５４との間に、フロアパネル２０の変形を伴う衝突時であって筐体４０が電池パック３０に近づく方向の荷重（車両幅方向中央側または車両後側の荷重）が入力された時に、変形して筐体４０の電池パック３０側の面（車両幅方向内側面４０ｃまたは車両後側面４０ｂ）に接触する変形部５５を、さらに有する。   The fixing member 50 is close to the battery pack 30 at the time of a collision involving deformation of the floor panel 20 between the battery pack side fastening portion 53 and the housing side fastening portion 54 in a side view of the fixing member 50. Direction load (vehicle width direction center side or vehicle rear side load) is deformed and contacts the battery pack 30 side surface (vehicle width direction inner side surface 40c or vehicle rear side surface 40b) of the casing 40. It further has a deforming portion 55 to be used.

変形部５５は、電池パック側締結部５３と筐体側締結部５４の両方から離れた位置に設けられている。変形部５５は、凸曲がり部５５ａと、凹曲がり部５５ｂと、凸曲がり部５５ａと凹曲がり部５５ｂとをつなぐ連結部５５ｃと、を有する。   The deformation portion 55 is provided at a position away from both the battery pack side fastening portion 53 and the housing side fastening portion 54. The deformable portion 55 includes a convex bent portion 55a, a concave bent portion 55b, and a connecting portion 55c that connects the convex bent portion 55a and the concave bent portion 55b.

凸曲がり部５５ａは、フロアパネル２０から離れる方向（上方）に凸となる部分である。凸曲がり部５５ａは、固定部材５０の側面視で電池パック側締結部５３と筐体側締結部５４を結ぶ直線Ｌよりもフロアパネル２０から離れる側（上側）にある。凹曲がり部５５ｂは、凸曲がり部５５ａと電池パック側締結部５３との間と、凸曲がり部５５ａと筐体側締結部５４との間と、の少なくともいずれか一方に設けられている。なお、本実施例では、凹曲がり部５５ｂは、少なくとも凸曲がり部５５ａと筐体側締結部５４との間との間に設けられている。ただし、凹曲がり部５５ｂは、凸曲がり部５５ａと電池パック側締結部５３との間にも設けられていてもよい。凹曲がり部５５ｂは、フロアパネル２０に接近する方向（下方）に凹となる部分である。   The convex bent portion 55a is a portion that is convex in the direction away from the floor panel 20 (upward). The convex bent portion 55 a is on the side (upper side) away from the floor panel 20 with respect to the straight line L connecting the battery pack side fastening portion 53 and the housing side fastening portion 54 in a side view of the fixing member 50. The concave bent portion 55b is provided between at least one of the convex bent portion 55a and the battery pack side fastening portion 53 and between the convex bent portion 55a and the housing side fastening portion 54. In the present embodiment, the concave bent portion 55 b is provided at least between the convex bent portion 55 a and the housing side fastening portion 54. However, the concave bent portion 55 b may also be provided between the convex bent portion 55 a and the battery pack side fastening portion 53. The concave bent portion 55b is a portion that becomes concave in the direction approaching the floor panel 20 (downward).

凸曲がり部５５ａは、屈曲部であってもよく湾曲部であってもよい。また、凹曲がり部５５ｂも、屈曲部であってもよく湾曲部であってもよい。なお、本発明図示例では、凸曲がり部５５ａと凹曲がり部５５ｂの両方が屈曲部である場合を示している。   The convex bent portion 55a may be a bent portion or a curved portion. Further, the concave bent portion 55b may be a bent portion or a curved portion. The illustrated example of the present invention shows a case where both the convex bent portion 55a and the concave bent portion 55b are bent portions.

ここで、図２、図３を参照して、（ｉ）衝突が生じていない通常時と、（ｉｉ）ポール側突（ポール７０への側面衝突試験）のような局所的な車両（フロアパネル２０）の変形を伴う衝突が発生したとき（衝突時）と、を説明する。   Here, referring to FIG. 2 and FIG. 3, (i) normal time when no collision occurs, and (ii) local vehicle (floor panel) such as pole side collision (side collision test on pole 70) 20) When a collision with deformation occurs (at the time of a collision).

（ｉ）衝突が発生していない通常時
図２（ａ）、図３（ａ）に示すように、第１固定部材５１、第２固定部材５２のいずれにおいても、変形部５５は、変形しておらず電池パック３０と筐体４０のいずれにも接触していない。 (I) Normal time when no collision occurs As shown in FIGS. 2A and 3A, the deforming portion 55 is deformed in both the first fixing member 51 and the second fixing member 52. The battery pack 30 and the housing 40 are not in contact with each other.

（ｉｉ）衝突時
（ｉｉ−１）筐体４０の車両幅方向外側（横）で衝突が発生したとき
第１固定部材５１に、車両幅方向外側から車両幅方向中央側への荷重（筐体４０が第１電池パック３１に車両幅方向外側から近づく方向の荷重）が入力される。すると、図２（ｂ）に示すように、凸曲がり部５５ａの角度Ａが衝突が生じていない通常時における角度Ａ１（図２（ａ））よりも小となり、かつ、凹曲がり部５５ｂの角度Ｂが衝突が生じていない通常時における角度Ｂ１（図２（ａ））よりも小となるように、第１固定部材５１の変形部５５が変形する。また、この第１固定部材５１の変形部５５の変形に応じて筐体４０が車両幅方向中央側（第１電池パック３１に接近する方向）へ移動する。第１固定部材５１の変形部５５が筐体４０の車両幅方向内側面４０ｃに接触するまで第１固定部材５１の変形部５５が変形し筐体４０が移動したとき、筐体４０のそれ以上の車両幅方向中央側（第１電池パック３１に接近する方向）への移動が、第１固定部材５１の変形部５５により抑制される。なお、第１固定部材５１の変形部５５は、変形後にあっても第１電池パック３１から離れた位置にあり第１電池パック３１には接触していない。 (Ii) At the time of collision (ii-1) When a collision occurs on the vehicle width direction outer side (lateral) of the casing 40, the load (housing from the vehicle width direction outer side to the vehicle width direction center side is applied to the first fixing member 51. 40 is input to the first battery pack 31 in a direction approaching from the outside in the vehicle width direction. Then, as shown in FIG. 2 (b), the angle A of the convex bent portion 55a is smaller than the angle A1 (FIG. 2 (a)) at the normal time when no collision occurs, and the angle of the concave bent portion 55b. The deforming portion 55 of the first fixing member 51 is deformed so that B is smaller than the angle B1 (FIG. 2A) at the normal time when no collision occurs. Further, the housing 40 moves toward the center in the vehicle width direction (direction approaching the first battery pack 31) according to the deformation of the deformation portion 55 of the first fixing member 51. When the deforming portion 55 of the first fixing member 51 is deformed and the housing 40 moves until the deforming portion 55 of the first fixing member 51 comes into contact with the inner side surface 40c of the housing 40 in the vehicle width direction, it is more than that of the housing 40. Movement toward the center in the vehicle width direction (direction approaching the first battery pack 31) is suppressed by the deforming portion 55 of the first fixing member 51. Note that the deforming portion 55 of the first fixing member 51 is located away from the first battery pack 31 even after being deformed and is not in contact with the first battery pack 31.

（ｉｉ−２）筐体４０より車両前側で側面衝突が発生したとき
第２固定部材５２に車両後側成分を有する衝突荷重（筐体４０が第２電池パック３２に車両前側から近づく方向の荷重）が入力される。すると、図３（ｂ）に示すように、凸曲がり部５５ａの角度Ｃが衝突が生じていない通常時における角度Ｃ１（図３（ａ））よりも小となり、かつ、凹曲がり部５５ｂの角度Ｄが衝突が生じていない通常時における角度Ｄ１（図３（ａ））よりも小となるように、第２固定部材５２の変形部５５が変形する。また、この第２固定部材５２の変形部５５の変形に応じて筐体４０が車両後側（第２電池パック３２に接近する方向）へ移動する。第２固定部材５２の変形部５５が筐体４０の車両後側面４０ｂに接触するまで第２固定部材５２の変形部５５が変形し筐体４０が移動したとき、筐体４０のそれ以上の車両後側（第２電池パック３２に接近する方向）への移動が、第２固定部材５２の変形部５５により抑制される。なお、第２固定部材５２の変形部５５は、変形後にあっても第２電池パック３２から離れた位置にあり第２電池パック３２には接触していない。 (Ii-2) Collision load having a vehicle rear side component on the second fixing member 52 when a side collision occurs on the vehicle front side from the housing 40 (a load in a direction in which the housing 40 approaches the second battery pack 32 from the vehicle front side) ) Is entered. Then, as shown in FIG. 3B, the angle C of the convex bent portion 55a is smaller than the angle C1 (FIG. 3A) at the normal time when no collision occurs, and the angle of the concave bent portion 55b. The deforming portion 55 of the second fixing member 52 is deformed so that D is smaller than the angle D1 (FIG. 3A) at the normal time when no collision occurs. Further, the housing 40 moves to the rear side of the vehicle (in the direction approaching the second battery pack 32) in accordance with the deformation of the deformation portion 55 of the second fixing member 52. When the deforming portion 55 of the second fixing member 52 is deformed and the housing 40 moves until the deforming portion 55 of the second fixing member 52 comes into contact with the vehicle rear side surface 40b of the housing 40, the vehicle beyond that of the housing 40 is moved. Movement to the rear side (direction approaching the second battery pack 32) is suppressed by the deforming portion 55 of the second fixing member 52. Note that the deforming portion 55 of the second fixing member 52 is located away from the second battery pack 32 even after being deformed and is not in contact with the second battery pack 32.

つぎに、本発明実施例１，２に共通する効果を説明する。
（ｉ）固定部材５０が、フロアパネル２０の変形を伴う衝突時であって筐体４０が電池パック３０に近づく方向の荷重が入力された時に、変形して筐体４０の電池パック３０側の面（車両幅方向内側面４０ｃまたは車両後側面４０ｂ）に接触する変形部５５を有するため、衝突エネルギーの少なくとも一部が変形部５５の変形に費やされる。よって、電池パック３０に伝わる衝突時の衝撃を低減させることができる。
（ｉｉ）また、変形部５５が筐体４０に接触するため、変形部５５にて筐体４０の電池パック３０に接近する方向への移動が抑えられる。そのため、筐体４０が電池パック３０に接触してしまうことを抑制できる。
上記（ｉ）、（ｉｉ）により、電池パック３０の変形を抑制できる。 Next, effects common to the first and second embodiments of the present invention will be described.
(I) When the fixing member 50 is collided with the deformation of the floor panel 20 and a load in a direction in which the casing 40 approaches the battery pack 30 is input, the fixing member 50 is deformed to be on the battery pack 30 side of the casing 40. Since it has the deformation | transformation part 55 which contacts a surface (vehicle width direction inner side surface 40c or vehicle rear side surface 40b), at least one part of collision energy is spent for deformation | transformation of the deformation | transformation part 55. FIG. Therefore, the impact at the time of the collision transmitted to the battery pack 30 can be reduced.
(Ii) Moreover, since the deformation | transformation part 55 contacts the housing | casing 40, the movement to the direction which approaches the battery pack 30 of the housing | casing 40 in the deformation | transformation part 55 is suppressed. Therefore, it can suppress that the housing | casing 40 contacts the battery pack 30. FIG.
Due to the above (i) and (ii), the deformation of the battery pack 30 can be suppressed.

また、固定部材５０の変形部５５を変形させることで、電池パック３０に伝わる衝突時の衝撃を低減させ、筐体４０の電池パック３０への接触を抑制しているため、筐体４０を車両のシートレール（図示略）などの取付け構造１０の周辺部品に接触させる必要はなく、周辺部品により取付け構造１０の配置位置に制限を受けることを抑制できる。   Further, by deforming the deforming portion 55 of the fixing member 50, the impact at the time of collision transmitted to the battery pack 30 is reduced and the contact of the casing 40 with the battery pack 30 is suppressed. It is not necessary to contact the peripheral parts of the mounting structure 10 such as the seat rail (not shown), and it is possible to prevent the peripheral parts from being restricted by the arrangement position of the mounting structure 10.

つぎに、本発明各実施例に特有な部分を説明する。   Next, parts unique to each embodiment of the present invention will be described.

〔実施例１〕（図１〜図３）
本発明実施例１では、図２または図３に示すように、電池パック３０が筐体４０よりも上方位置に配置されている。すなわち、電池パック３０と筐体４０は段差のある箇所に設置されている。固定部材５０の変形部５５の凹曲がり部５５ｂは、凸曲がり部５５ａと筐体側締結部５４との間にのみ設けられており、凸曲がり部５５ａと電池パック側締結部５３との間には設けられていない。そのため固定部材５０は側面視で「Ｚ」字形状となっている。 [Example 1] (FIGS. 1 to 3)
In the first embodiment of the present invention, as shown in FIG. 2 or 3, the battery pack 30 is disposed above the housing 40. That is, the battery pack 30 and the housing 40 are installed at a stepped portion. The concave bent portion 55b of the deformable portion 55 of the fixing member 50 is provided only between the convex bent portion 55a and the housing side fastening portion 54, and between the convex bent portion 55a and the battery pack side fastening portion 53. Not provided. Therefore, the fixing member 50 has a “Z” shape in a side view.

本発明実施例１では、電池パック３０と筐体４０が段差のある箇所に配置されている場合であっても、変形部５５の凹曲がり部５５ｂを凸曲がり部５５ａの片側のみに設けることのみで、変形部５５による効果（本発明実施例１，２に共通する上記効果）を得ることができる。   In the first embodiment of the present invention, even when the battery pack 30 and the casing 40 are arranged at a stepped portion, only the concave bent portion 55b of the deformable portion 55 is provided only on one side of the convex bent portion 55a. Thus, the effect of the deforming portion 55 (the above-mentioned effect common to the first and second embodiments of the present invention) can be obtained.

〔実施例２〕（図４〜図５）
本発明実施例２では、電池パック３０と筐体４０が同一高さ位置（同一平面）に配置されている。固定部材５０の変形部５５の凹曲がり部５５ｂは、凸曲がり部５５ａと電池パック側締結部５３との間と、凸曲がり部５５ａと筐体側締結部５４との間と、の両方に設けられている。そのため、固定部材５０は側面視で下方に開放する「Ｖ」字形状または「Ｕ」字形状となっている。 [Example 2] (FIGS. 4 to 5)
In the embodiment 2 of the present invention, the battery pack 30 and the housing 40 are arranged at the same height position (same plane). The concave bent portion 55b of the deformable portion 55 of the fixing member 50 is provided both between the convex bent portion 55a and the battery pack side fastening portion 53 and between the convex bent portion 55a and the housing side fastening portion 54. ing. Therefore, the fixing member 50 has a “V” shape or a “U” shape that opens downward in a side view.

図４、図５は、固定部材５０が第１固定部材５１である場合を示しているが、固定部材５０は第２固定部材５２であってもよい。また、図４、図５において、凸曲がり部５５ａと該凸曲がり部５５ａの両側に設けられるそれぞれの凹曲がり部５５ｂは、衝突が生じていない通常時における角度をそれぞれＥ１，Ｆ１，Ｇ１で示し、衝突時の角度をそれぞれＥ（＜Ｅ１）、Ｆ（＜Ｆ１）、Ｇ（＜Ｇ１）で示している。   4 and 5 show the case where the fixing member 50 is the first fixing member 51, the fixing member 50 may be the second fixing member 52. 4 and 5, the convex bent portion 55a and the concave bent portions 55b provided on both sides of the convex bent portion 55a are denoted by E1, F1, and G1, respectively, at normal angles at which no collision occurs. The angles at the time of collision are indicated by E (<E1), F (<F1), and G (<G1), respectively.

本発明実施例２では、電池パック３０と筐体４０が同一高さ位置に配置されている場合であっても、変形部５５の凹曲がり部５５ｂを凸曲がり部５５ａの両側に設けることのみで、変形部５５による効果（本発明実施例１，２に共通する上記効果）を得ることができる。   In the second embodiment of the present invention, even when the battery pack 30 and the housing 40 are arranged at the same height, only the concave bent portions 55b of the deformable portion 55 are provided on both sides of the convex bent portion 55a. The effect of the deforming portion 55 (the above-described effect common to the first and second embodiments of the present invention) can be obtained.

１０ 電池パック取付け構造
２０ フロアパネル
２１ トンネル部
２２ 一般部
３０ 電池パック
３１ 第１電池パック
３２ 第２電池パック
４０ 筐体
５０ 固定部材
５１ 第１固定部材
５１ａ 前側第１固定部材
５１ｂ 後側第１固定部材
５２ 第２固定部材
５３ 電池パック側締結部
５４ 筐体側締結部
５５ 変形部
５５ａ 凸曲がり部
５５ｂ 凹曲がり部
５５ｃ 連結部
６０ 取付けブラケット
７０ ポール
Ｌ 直線





DESCRIPTION OF SYMBOLS 10 Battery pack attachment structure 20 Floor panel 21 Tunnel part 22 General part 30 Battery pack 31 1st battery pack 32 2nd battery pack 40 Case 50 Fixing member 51 1st fixing member 51a Front side 1st fixing member 51b Rear side 1st fixing Member 52 second fixing member 53 battery pack side fastening portion 54 housing side fastening portion 55 deforming portion 55a convex bent portion 55b concave bent portion 55c connecting portion 60 mounting bracket 70 pole L straight line





Claims (1)

フロアパネルと、
前記フロアパネルの上側または下側に配置され前記フロアパネルに固定部材を介して固定される電池パックと、
前記フロアパネルの上側と下側のうち前記電池パックと同じ側に配置され前記フロアパネルに前記固定部材を介して固定される筐体と、
を有し、
前記固定部材は、前記筐体よりも前記電池パックに近い位置にあり前記フロアパネルに締結固定される電池パック側締結部と、前記電池パックよりも前記筐体に近い位置にあり前記フロアパネルに締結固定される筐体側締結部と、を有しており、さらに、前記電池パック側締結部と前記筐体側締結部との間に、前記フロアパネルの変形を伴う衝突時であって前記筐体が前記電池パックに近づく方向の荷重が入力された時に、変形して前記筐体の前記電池パック側の面に接触する変形部を有する、電池パック取付け構造。 Floor panels,
A battery pack disposed on the upper side or the lower side of the floor panel and fixed to the floor panel via a fixing member;
A housing that is arranged on the same side as the battery pack among the upper and lower sides of the floor panel and is fixed to the floor panel via the fixing member,
Have
The fixing member is closer to the battery pack than the housing and is fastened and fixed to the floor panel. The fixing member is closer to the housing than the battery pack. A housing-side fastening portion that is fastened and fixed, and further, the housing is in a collision with deformation of the floor panel between the battery pack-side fastening portion and the housing-side fastening portion. A battery pack mounting structure having a deforming portion that deforms and contacts the surface of the housing on the battery pack side when a load in a direction approaching the battery pack is input.
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06270697A (en) * 1993-03-19 1994-09-27 Toyota Motor Corp Accessory arranging structure for electric automobile
JPH07101353A (en) * 1993-10-01 1995-04-18 Toyota Motor Corp On-vehicle equipment mounting structure
JP2004017808A (en) * 2002-06-17 2004-01-22 Toyota Motor Corp Mounting structure of peripheral parts of battery for vehicle
JP2013018430A (en) * 2011-07-13 2013-01-31 Mitsubishi Motors Corp Rear part structure of vehicle
JP2013086605A (en) * 2011-10-17 2013-05-13 Toyota Auto Body Co Ltd Battery pack unit for vehicle
WO2015019742A1 (en) * 2013-08-07 2015-02-12 日産自動車株式会社 Structure for mounting battery to vehicle body
JP2017226347A (en) * 2016-06-23 2017-12-28 株式会社Ｓｕｂａｒｕ On-vehicle battery
JP2019051805A (en) * 2017-09-14 2019-04-04 本田技研工業株式会社 Battery unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06270697A (en) * 1993-03-19 1994-09-27 Toyota Motor Corp Accessory arranging structure for electric automobile
JPH07101353A (en) * 1993-10-01 1995-04-18 Toyota Motor Corp On-vehicle equipment mounting structure
JP2004017808A (en) * 2002-06-17 2004-01-22 Toyota Motor Corp Mounting structure of peripheral parts of battery for vehicle
JP2013018430A (en) * 2011-07-13 2013-01-31 Mitsubishi Motors Corp Rear part structure of vehicle
JP2013086605A (en) * 2011-10-17 2013-05-13 Toyota Auto Body Co Ltd Battery pack unit for vehicle
WO2015019742A1 (en) * 2013-08-07 2015-02-12 日産自動車株式会社 Structure for mounting battery to vehicle body
JP2017226347A (en) * 2016-06-23 2017-12-28 株式会社Ｓｕｂａｒｕ On-vehicle battery
JP2019051805A (en) * 2017-09-14 2019-04-04 本田技研工業株式会社 Battery unit

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