JP6070994B2 - Power storage device for vehicle - Google Patents

Power storage device for vehicle Download PDF

Info

Publication number
JP6070994B2
JP6070994B2 JP2013102342A JP2013102342A JP6070994B2 JP 6070994 B2 JP6070994 B2 JP 6070994B2 JP 2013102342 A JP2013102342 A JP 2013102342A JP 2013102342 A JP2013102342 A JP 2013102342A JP 6070994 B2 JP6070994 B2 JP 6070994B2
Authority
JP
Japan
Prior art keywords
holding member
cover
case
locking means
storage device
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.)
Active
Application number
JP2013102342A
Other languages
Japanese (ja)
Other versions
JP2014222641A (en
Inventor
恭介 三好
恭介 三好
香苗 大熊
香苗 大熊
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.)
Honda Motor Co Ltd
Original Assignee
Honda Motor 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2013102342A priority Critical patent/JP6070994B2/en
Publication of JP2014222641A publication Critical patent/JP2014222641A/en
Application granted granted Critical
Publication of JP6070994B2 publication Critical patent/JP6070994B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Battery Mounting, Suspending (AREA)

Description

本発明は、車両の車体後部に搭載される蓄電装置が、蓄電池群を収納するケ−スと、前記ケースの上面開口部を閉塞するカバーと、前記蓄電池群を支持して前記ケースを車幅方向に貫通する前部保持部材および後部保持部材と、前記ケースおよび前記カバーを結合する係止手段とを備え、前記カバーは前記前部保持部材および前記後部保持部材の上面に固定され、前記カバーの前部は前記前部保持部材から前方に延出し、前記蓄電池群は前記前部保持部材の前壁および前記後部保持部材の後壁に固定される車両用蓄電装置に関する。 According to the present invention, a power storage device mounted on a rear part of a vehicle body includes a case for storing a storage battery group, a cover for closing an upper surface opening of the case, and supporting the storage battery group to A front holding member and a rear holding member penetrating in a direction, and a locking means for coupling the case and the cover , wherein the cover is fixed to the upper surfaces of the front holding member and the rear holding member, The front portion extends forward from the front holding member, and the storage battery group relates to a vehicle power storage device fixed to a front wall of the front holding member and a rear wall of the rear holding member .

底板および四つの側板を有して上面が開口する組電池ケースの内部に蓄電池を収納し、四つの側板の上端を外向きに折り曲げたフランジ部に組電池蓋板の外周部を重ね合わせて多数のボルトで締結する組電池が、下記特許文献1により公知である。   A storage battery is housed inside a battery case that has a bottom plate and four side plates, and the top surface is open. An assembled battery that is fastened with a bolt is known from Patent Document 1 below.

特開2006−140023号公報JP 2006-140023 A

ところで、かかる組電池を車体後部に搭載した車両が後面衝突を受けて組電池ケースおよび組電池蓋板の合わせ部に隙間が形成されると、この隙間を通して組電池ケース内に収納した高電圧の蓄電池やインバータ等に作業者の手が触れる虞がある。これを防止するには、組電池ケースおよび組電池蓋板を多数のボルトで強固に締結すれば良いが、このようにするとボルトの数が増加して組電池蓋板の着脱作業が面倒になる。また他の方法として、組電池蓋板から大きな庇を張り出して組電池ケースの外周のフランジ部を覆うことが考えられるが、このようにすると組電池の寸法が大型化する問題がある。   By the way, when a vehicle in which such an assembled battery is mounted on the rear part of the vehicle body is subjected to a rear collision and a gap is formed at the joining portion of the assembled battery case and the assembled battery cover plate, the high voltage stored in the assembled battery case through this gap There is a risk that the operator's hand may touch the storage battery or the inverter. In order to prevent this, the assembled battery case and the assembled battery cover plate may be firmly fastened with a large number of bolts. However, this increases the number of bolts, which makes it difficult to attach and detach the assembled battery cover plate. . As another method, it is conceivable to project a large ridge from the assembled battery cover plate to cover the flange portion on the outer periphery of the assembled battery case, but there is a problem that the size of the assembled battery increases.

本発明は前述の事情に鑑みてなされたもので、車両が後面衝突を受けたときに蓄電装置のケースおよびカバー間に隙間が発生するのを防止することを目的とする。   The present invention has been made in view of the above-described circumstances, and an object thereof is to prevent a gap from being generated between a case and a cover of a power storage device when a vehicle undergoes a rear collision.

上記目的を達成するために、請求項1に記載された発明によれば、車両の車体後部に搭載される蓄電装置が、蓄電池群を収納するケ−スと、前記ケースの上面開口部を閉塞するカバーと、前記蓄電池群を支持して前記ケースを車幅方向に貫通する前部保持部材および後部保持部材と、前記ケースおよび前記カバーを結合する係止手段とを備え、前記カバーは前記前部保持部材および前記後部保持部材の上面に固定され、前記カバーの前部は前記前部保持部材から前方に延出し、前記蓄電池群は前記前部保持部材の前壁および前記後部保持部材の後壁に固定される車両用蓄電装置であって、前記係止手段は前記ケースおよび前記カバーの前側の合わせ部を覆う覆い部を有することを特徴とする車両用蓄電装置が提案される。 In order to achieve the above object, according to the first aspect of the present invention, a power storage device mounted at the rear of a vehicle body closes a case for storing a storage battery group and an upper opening of the case. A cover for supporting the storage battery group, a front holding member and a rear holding member penetrating the case in the vehicle width direction, and a locking means for coupling the case and the cover , the cover comprising the front Fixed to the upper surface of the front holding member and the rear holding member, the front portion of the cover extends forward from the front holding member, and the storage battery group is located behind the front wall of the front holding member and the rear holding member. A vehicle power storage device is proposed which is a vehicle power storage device fixed to a wall , wherein the locking means includes a cover portion that covers the case and the front mating portion of the cover.

また請求項2に記載された発明によれば、請求項1の構成に加えて、前記係止手段は複数の係止爪を備え、前記覆い部は前記複数の係止爪を一体に連結することを特徴とする車両用蓄電装置が提案される。   According to the second aspect of the present invention, in addition to the configuration of the first aspect, the locking means includes a plurality of locking claws, and the cover portion integrally connects the plurality of locking claws. A vehicular power storage device is proposed.

また請求項3に記載された発明によれば、請求項1または請求項2の構成に加えて、前記係止手段は、非係止状態において前記ケースあるいは前記カバーに連結していることを特徴とする車両用蓄電装置が提案される。   According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, the locking means is connected to the case or the cover in an unlocked state. A vehicle power storage device is proposed.

また請求項4に記載された発明によれば、請求項1〜請求項3の何れか1項の構成に加えて、前記蓄電池群の総プラス端子および総マイナス端子は前記前部保持部材の前壁の前面に露出しており、前記係止手段は、前記総プラス端子および前記総マイナス端子の少なくとも一方に対向する位置に設けられることを特徴とする車両用蓄電装置が提案される According to the invention described in claim 4, in addition to the configuration of any one of claims 1 to 3, the total positive terminal and the total negative terminal of the storage battery group are arranged in front of the front holding member. It is exposed to the front wall, the locking means, the vehicle power storage device and which are located in a position facing at least one of total positive terminal and said total negative terminal is proposed.

尚、実施の形態のバッテリパック12は本発明の蓄電装置に対応し、実施の形態のバッテリモジュール20は本発明の蓄電池群に対応し、実施の形態の第1、第2覆い部54c,54eは本発明の覆い部に対応する。   The battery pack 12 of the embodiment corresponds to the power storage device of the present invention, the battery module 20 of the embodiment corresponds to the storage battery group of the present invention, and the first and second cover portions 54c and 54e of the embodiment. Corresponds to the cover of the present invention.

請求項1の構成によれば、車両の車体後部に搭載される蓄電装置が、蓄電池群を収納するケ−スと、ケースの上面開口部を閉塞するカバーと、蓄電池群を支持してケースを車幅方向に貫通する前部保持部材および後部保持部材と、前記ケースおよび前記カバーを結合する係止手段とを備え、カバーは前部保持部材および後部保持部材の上面に固定され、カバーの前部は前部保持部材から前方に延出し、蓄電池群は前部保持部材の前壁および後部保持部材の後壁に固定されるので、車両が後面衝突した際の衝突荷重で前方に移動する蓄電池群に前部保持部材の前壁を押されてカバーの前部が前部保持部材との固定部で折れ曲がって持ち上がり易くなるが、係止手段でカバーの部の持ち上がりを防止し、ケースおよびカバーの間に隙間が発生して蓄電池群等の高電圧部材が露出するのを防止することができる。万一ケースおよびカバーの合わせ部に隙間が発生しても、係止手段はケースおよびカバーの前側の合わせ部を覆う覆い部を有するので、覆い部により蓄電池群等の高電圧部材が露出するのを防止することができる。 According to the configuration of claim 1, the power storage device mounted on the rear part of the vehicle body includes a case for storing the storage battery group, a cover for closing the upper surface opening of the case, and the case supporting the storage battery group. A front holding member and a rear holding member penetrating in the vehicle width direction, and a locking means for coupling the case and the cover , the cover being fixed to the upper surface of the front holding member and the rear holding member, Since the part extends forward from the front holding member and the storage battery group is fixed to the front wall of the front holding member and the rear wall of the rear holding member, the storage battery moves forward with a collision load when the vehicle collides rearward Although pushed the front wall of the front holding member group the front portion of the cover is easily lifted bent by the fixing portion of the front holding member to prevent lifting of the front part of the cover with locking means, cases and There is a gap between the covers It can be high voltage members of the battery unit or the like is prevented from being exposed. Even if a gap occurs between the case and the cover mating portion, the locking means has a cover portion that covers the case and cover front mating portion, so that the high voltage member such as the storage battery group is exposed by the cover portion. Can be prevented.

また請求項2の構成によれば、係止手段は複数の係止爪を備え、覆い部は複数の係止爪を一体に連結するので、覆い部によりケースおよびカバーの合わせ部を広範囲に亙って隙間なく覆うことができる。   According to the second aspect of the present invention, the locking means includes a plurality of locking claws, and the cover portion integrally connects the plurality of locking claws. Can be covered without gaps.

また請求項3の構成によれば、係止手段は、非係止状態においてケースあるいはカバーに連結しているので、作業中に係止手段を落としたり紛失したりするのが防止されて作業性が向上する。   According to the third aspect of the present invention, since the locking means is connected to the case or the cover in the non-locked state, it is possible to prevent the locking means from being dropped or lost during the work, thereby improving workability. Will improve.

また請求項4の構成によれば、蓄電池群の総プラス端子および総マイナス端子は前部保持部材の前壁の前面に露出しており、係止手段は、総プラス端子および総マイナス端子の少なくとも一方に対向する位置に設けられるので、高電圧の総プラス端子あるいは総マイナス端子に指が触れるのを係止手段により阻止することができる According to the fourth aspect of the present invention, the total positive terminal and the total negative terminal of the storage battery group are exposed on the front surface of the front wall of the front holding member, and the locking means includes at least the total positive terminal and the total negative terminal. Since it is provided at a position facing one side, it is possible to prevent the finger from touching the high voltage total positive terminal or the total negative terminal by the locking means .

バッテリパックが搭載される車体後部の斜視図。The perspective view of the vehicle body rear part in which a battery pack is mounted. バッテリパックの分解斜視図。The exploded perspective view of a battery pack. 図1の3方向矢視図。FIG. 3 is a three-direction arrow view of FIG. 1. 図3の4−4線断面図。FIG. 4 is a sectional view taken along line 4-4 of FIG. 図3の5−5線断面図。FIG. 5 is a sectional view taken along line 5-5 of FIG. 図3の6−6線断面図。FIG. 6 is a sectional view taken along line 6-6 of FIG. 図6の7−7線断面図。FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 図3の8−8線断面図。FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 3. センサカバーの斜視図。The perspective view of a sensor cover. ステーの斜視図。The perspective view of a stay. ストッパ部材の斜視図。The perspective view of a stopper member. 係止手段の斜視図。The perspective view of a latching means.

以下、図1〜図12に基づいて本発明の実施の形態を説明する。   Hereinafter, embodiments of the present invention will be described with reference to FIGS.

図1に示すように、ハイブリッド自動車の車体後部のトランクルームのフロアパネル11に下向きに凹む凹部11aが形成されており、この凹部11aにバッテリパック12が搭載される。バッテリパック12は、上面が開放する容器状に形成された合成樹脂製のケース13と、板状に形成されてケース13の上面開口部を閉塞する金属製のカバー14と、車幅方向に延びて両端部がフロアパネル11の上面に固定される金属製の前部保持部材15および後部保持部材16とを備える。ケース13およびカバー14は前部保持部材15および後部保持部材16に固定されており、前部保持部材15および後部保持部材16によって凹部11a内に吊り下げ支持される。   As shown in FIG. 1, a recess 11a that is recessed downward is formed in the floor panel 11 of the trunk room at the rear of the vehicle body of the hybrid vehicle, and the battery pack 12 is mounted in the recess 11a. The battery pack 12 includes a case 13 made of a synthetic resin formed in a container shape whose upper surface is open, a metal cover 14 formed in a plate shape and closing the upper surface opening of the case 13, and extends in the vehicle width direction. The metal front part holding member 15 and the rear part holding member 16 which both ends are fixed to the upper surface of the floor panel 11 are provided. The case 13 and the cover 14 are fixed to the front holding member 15 and the rear holding member 16, and are suspended and supported in the recess 11a by the front holding member 15 and the rear holding member 16.

図1および図2に示すように、前部保持部材15および後部保持部材16の車幅方向中間部はそれぞれ板状の前壁15aおよび後壁16aになっており、前壁15aおよび後壁16aの下端間が底壁17で一体に接続されるとともに、前壁15aおよび後壁16aの左端間が左側側壁18で接続され、前壁15aおよび後壁16aの右端間が右側側壁19で接続される。   As shown in FIGS. 1 and 2, the vehicle holding direction intermediate portions of the front holding member 15 and the rear holding member 16 are plate-like front walls 15a and rear walls 16a, respectively, and the front wall 15a and the rear wall 16a. Are connected together by a bottom wall 17, the left ends of the front wall 15 a and the rear wall 16 a are connected by a left side wall 18, and the right ends of the front wall 15 a and the rear wall 16 a are connected by a right side wall 19. The

前部保持部材15および後部保持部材16の間には、4個のバッテリモジュール20…が支持される。バッテリモジュール20は、例えばリチウムイオンバッテリよりなる12個のバッテリセル21…を積層し、その積層方向両端部に積層した一対のエンドプレート22,22の四隅どうしを4本のフレーム29…で接続して構成される。4個のバッテリモジュール20…は、バッテリセル21…の積層方向を前後方向に整列させた状態で車幅方向に並置され、一対のエンドプレート22,22がそれぞれ前部保持部材15および後部保持部材16の前壁15aおよび後壁16aに締結される。   Four battery modules 20 are supported between the front holding member 15 and the rear holding member 16. The battery module 20 is formed by stacking twelve battery cells 21 made of, for example, lithium ion batteries, and connecting four corners of a pair of end plates 22 and 22 stacked at both ends in the stacking direction by four frames 29. Configured. The four battery modules 20 are juxtaposed in the vehicle width direction in a state in which the stacking direction of the battery cells 21 is aligned in the front-rear direction, and the pair of end plates 22 and 22 are respectively a front holding member 15 and a rear holding member. The 16 front walls 15a and the rear wall 16a are fastened.

前部保持部材15および後部保持部材16の前壁15aおよび後壁16a間であって、4個のバッテリモジュール20…の左側に、バッテリモジュール20…の高圧直流電流を3相交流に変換するインバータや、前記高圧直流電流を低圧電流に降圧するDC−DCコンバータ等を含むPCU(パワー・コントロール・ユニット)23が搭載される。   An inverter that converts the high-voltage direct current of the battery modules 20 to three-phase alternating current between the front wall 15a and the rear wall 16a of the front holding member 15 and the rear holding member 16 and on the left side of the four battery modules 20 ... In addition, a PCU (Power Control Unit) 23 including a DC-DC converter or the like for stepping down the high-voltage direct current to a low-voltage current is mounted.

前部保持部材15の前面には、バッテリモジュール20…およびPCU23を図示せぬケーブルを介して接続するジャンクションボード24が固定される。ジャンクションボード24には、バッテリモジュール20…およびPCU23間の電気的接続を遮断するコンタクタやヒューズが設けられる。またバッテリモジュール20…の後方の後部保持部材16の後壁16aの後面に、バッテリセル21…の電圧を測定する複数のセル電圧センサ25,25が設けられており、これらのセル電圧センサ25,25を後方から覆う金属板よりなるセンサカバー26が後部保持部材16の後壁16aの後面に固定される。   A junction board 24 that connects the battery modules 20... And the PCU 23 via a cable (not shown) is fixed to the front surface of the front holding member 15. The junction board 24 is provided with a contactor and a fuse for cutting off the electrical connection between the battery modules 20... And the PCU 23. Further, a plurality of cell voltage sensors 25, 25 for measuring the voltages of the battery cells 21 are provided on the rear surface of the rear wall 16a of the rear holding member 16 behind the battery modules 20, and the cell voltage sensors 25, A sensor cover 26 made of a metal plate that covers 25 from behind is fixed to the rear surface of the rear wall 16 a of the rear holding member 16.

PCU23の後方の後部保持部材16の後壁16aの後面に、冷却ファン27が設けられる。冷却ファン27を駆動すると、ケース13の後壁13aに形成した冷却空気吸入口13b(図1参照)に接続された不図示の吸気ダクトを介して車室内から冷却空気が吸入され、バッテリモジュール20…およびPCU23を冷却した後の排気が、冷却ファン27および排気ダクト28を通って車外に排出される。   A cooling fan 27 is provided on the rear surface of the rear wall 16 a of the rear holding member 16 behind the PCU 23. When the cooling fan 27 is driven, the cooling air is sucked from the vehicle compartment through an intake duct (not shown) connected to the cooling air inlet 13b (see FIG. 1) formed in the rear wall 13a of the case 13, and the battery module 20 .. And the exhaust gas after cooling the PCU 23 is discharged outside the vehicle through the cooling fan 27 and the exhaust duct 28.

次に、図3〜図12に基づいてバッテリパック12の各部の構造を詳細に説明する。   Next, the structure of each part of the battery pack 12 will be described in detail with reference to FIGS.

図3、図5および図10に示すように、冷却ファン27は、後部保持部材16の後壁16aの左端に固定されたステー31に支持される。ステー31は金属板をプレス成形したもので、冷却ファン27の周囲を部分的に取り囲む本体部31aと、本体部31aの前端を折り曲げて構成されて後壁16aに溶接される溶接部31b…と、本体部31aの後端を折り曲げて構成されて前面にウエルドナット32…が溶接されたフランジ部31c…とを備える。ステー31の本体部31aには、径方向外側に突出する三角形断面の屈曲部31d…が、冷却ファン27の周囲を部分的に取り囲むように形成される。   As shown in FIGS. 3, 5, and 10, the cooling fan 27 is supported by a stay 31 fixed to the left end of the rear wall 16 a of the rear holding member 16. The stay 31 is formed by press-molding a metal plate, a main body 31a partially surrounding the periphery of the cooling fan 27, a weld 31b formed by bending the front end of the main body 31a and welded to the rear wall 16a. , And a flange portion 31c formed by bending the rear end of the main body portion 31a and welded to the front surface. In the main body 31 a of the stay 31, bent portions 31 d having a triangular cross-section projecting radially outward are formed so as to partially surround the cooling fan 27.

冷却ファン27は、相互に結合される合成樹脂製の前部ケーシング33および後部ケーシング34を備えており、その内部に金属製のファンロータ35と、ファンロータ35を駆動するファンモータ36とが同軸に配置される。後部ケーシング34の外周から3個の取付ブラケット34a…が前方に突設されており、これらの取付ブラケット34a…およびステー31のフランジ部31c…を貫通する3本のボルト37…をウエルドナット32…に螺合することで、冷却ファン27がステー31に固定される。   The cooling fan 27 includes a front casing 33 and a rear casing 34 made of synthetic resin that are coupled to each other, and a metal fan rotor 35 and a fan motor 36 that drives the fan rotor 35 are coaxially arranged therein. Placed in. Three mounting brackets 34a are projected forward from the outer periphery of the rear casing 34, and three bolts 37 penetrating through the mounting bracket 34a and the flange portion 31c of the stay 31 are welded nuts 32 ... As a result, the cooling fan 27 is fixed to the stay 31.

ステー31の溶接部31b…に囲まれた後部保持部材16の後壁16aに略円形の貫通孔16bが形成され、貫通孔16bの前面に四角形状のダクト支持部材38が固定される。前部ケーシング33の中央から合成樹脂製の入り口ダクト39が貫通孔16bの内部に延びており、入り口ダクト39の先端に設けた四角形状のフランジ部39aがダクト支持部材38に固定される、その結果、入り口ダクト39の先端はPCU23の後面に対向するように開口する。   A substantially circular through hole 16b is formed in the rear wall 16a of the rear holding member 16 surrounded by the welded portions 31b of the stay 31, and a rectangular duct support member 38 is fixed to the front surface of the through hole 16b. An entrance duct 39 made of synthetic resin extends from the center of the front casing 33 into the through hole 16b, and a rectangular flange 39a provided at the tip of the entrance duct 39 is fixed to the duct support member 38. As a result, the front end of the entrance duct 39 opens so as to face the rear surface of the PCU 23.

図5から明らかなように、ファンロータ35の直径aは後部保持部材16の貫通孔16bの直径bよりも小さく設定され、かつ前部ケーシング33および後部ケーシング34の直径cは貫通孔16bの直径bよりも大きく設定される。また貫通孔16bの後端からPCU23の後端までの前後方向距離dは、ファンロータ35の前後方向厚さeよりも大きく設定される。また後部保持部材16は、冷却ファン27およびPCU23に挟まれた部分が、その他の部分に対して前方に屈曲している(図3参照)。   As apparent from FIG. 5, the diameter a of the fan rotor 35 is set smaller than the diameter b of the through hole 16b of the rear holding member 16, and the diameter c of the front casing 33 and the rear casing 34 is the diameter of the through hole 16b. It is set larger than b. A longitudinal distance d from the rear end of the through hole 16 b to the rear end of the PCU 23 is set to be larger than the thickness e of the fan rotor 35 in the front-rear direction. Further, in the rear holding member 16, a portion sandwiched between the cooling fan 27 and the PCU 23 is bent forward with respect to the other portions (see FIG. 3).

図2〜図4および図9に示すように、後部保持部材16の後壁16aの後面に固定したセル電圧センサ25,25を後方から覆うセンサカバー26は上下方向に延びる多数の稜線26a…によって補強されており、その前面にスチフナ40が重ね合わされて更に補強される。スチフナ40の前面には4個の突出部41A,41B,41C,41Dが前方に向けて突出するように設けられる。後部保持部材16の後壁16aに植設した5本のスタッドボルト42…が、左側の3個の突出部41A,41B,41Cの中心と、右端の1個の突出部41Dの上下端とを貫通してナット43…に螺合することで、後部保持部材16の後壁16aの後面に所定の空間を有してセンサカバー26が固定される。   As shown in FIG. 2 to FIG. 4 and FIG. 9, the sensor cover 26 covering the cell voltage sensors 25, 25 fixed to the rear surface of the rear wall 16 a of the rear holding member 16 from the rear is formed by a large number of ridge lines 26 a. The stiffener 40 is overlapped on the front surface and further reinforced. Four projecting portions 41A, 41B, 41C, and 41D are provided on the front surface of the stiffener 40 so as to project forward. Five stud bolts 42... Planted on the rear wall 16a of the rear holding member 16 connect the center of the left three protrusions 41A, 41B, 41C and the upper and lower ends of one protrusion 41D at the right end. The sensor cover 26 is fixed with a predetermined space on the rear surface of the rear wall 16a of the rear holding member 16 by passing through and screwing into the nuts 43.

図3から明らかなように、突出部41Aは最も左側のバッテリモジュール20の左側のフレーム29の後方に位置し、突出部41Cは左から2番目のバッテリモジュール20の右側のフレーム29および左から3番目のバッテリモジュール20の左側のフレーム29の後方に位置し、突出部41Dは最も右側のバッテリモジュール20の右側のフレーム29の後方に位置している。   As is apparent from FIG. 3, the protrusion 41A is located behind the left frame 29 of the leftmost battery module 20, and the protrusion 41C is the right frame 29 of the second battery module 20 from the left and 3 from the left. The protrusion 41D is located behind the right frame 29 of the right battery module 20 and is located behind the left frame 29 of the second battery module 20.

図2、図3、図6、図7および図11に示すように、ケース13の上面開口部を覆うカバー14は、6本のボルト44…で前部保持部材15の上面および後部保持部材16に上面に着脱自在に固定される。前部保持部材15から前方に張り出すカバー14の右端に車幅方向に細長い開口14aが形成されており、この開口14aは2本のボルト45,45により着脱自在なリッド14bで覆われる。開口14aに臨むカバー14の下面には、金属製のストッパ部材46が固定される。ストッパ部材46は、左右一対の底壁部46a,46bと、これらの底壁部46a,46b間を接続する側壁部46cと、この側壁部46cの左右両端に形成された左右一対の溶接部46d,46eとを備えており、溶接部46d,46eにおいてカバー14の下面に溶接されて固定される。左側の底壁部46aに1本のピン46hが上向きに植設される。   As shown in FIGS. 2, 3, 6, 7, and 11, the cover 14 that covers the upper surface opening of the case 13 is composed of the upper surface of the front holding member 15 and the rear holding member 16 with six bolts 44. It is detachably fixed to the upper surface. An opening 14a elongated in the vehicle width direction is formed at the right end of the cover 14 projecting forward from the front holding member 15. The opening 14a is covered with a detachable lid 14b by two bolts 45 and 45. A metal stopper member 46 is fixed to the lower surface of the cover 14 facing the opening 14a. The stopper member 46 includes a pair of left and right bottom wall portions 46a and 46b, a side wall portion 46c connecting the bottom wall portions 46a and 46b, and a pair of left and right welded portions 46d formed at the left and right ends of the side wall portion 46c. , 46e, and is welded and fixed to the lower surface of the cover 14 at the welded portions 46d, 46e. One pin 46h is planted upward on the left bottom wall 46a.

溶接部46d,46eはストッパ部材46の後端側に設けられており、溶接部46d,46eの前方に連続する側壁部46cには、カバー14の下面との間に空間αを形成するための左右一対の切欠き46f,46gが形成される。   The welded portions 46d and 46e are provided on the rear end side of the stopper member 46, and a side wall portion 46c continuous in front of the welded portions 46d and 46e is used to form a space α between the lower surface of the cover 14. A pair of left and right cutouts 46f and 46g are formed.

カバー14の開口14aの下方に臨む位置に設けられたサービスプラグ47は、前部保持部材15の前壁15aに2本のボルト48,48で固定された第1半体49と、第1半体49に対して脱着可能な第2半体50とからなる。第1半体49には水平方向に突出する係止ピン51が設けられ、第2半体50にはストッパ部材46のピン46hに嵌合可能なピン孔50aが形成される。また第2半体50には支軸52を介してロックレバー53が揺動可能に枢支されており、このロックレバー53に第1半体49の係止ピン51に係合可能な円弧状のカム溝53aが形成される。   The service plug 47 provided at a position facing the opening 14a of the cover 14 includes a first half 49 fixed to the front wall 15a of the front holding member 15 with two bolts 48, 48, and a first half 49. The second half 50 is detachable from the body 49. The first half 49 is provided with a locking pin 51 protruding in the horizontal direction, and the second half 50 is formed with a pin hole 50a that can be fitted to the pin 46h of the stopper member 46. A lock lever 53 is pivotally supported on the second half 50 via a support shaft 52, and the lock lever 53 is arcuately engageable with the locking pin 51 of the first half 49. The cam groove 53a is formed.

図2、図3、図8および図12に示すように、カバー14の前端に沿って3個の貫通孔14c…が形成されており、これらの貫通孔14c…を係止する係止手段54がケース13の前端に一体に設けられる。係止手段54は、ケース13の前端から前方に張り出すフランジ部54aと、フランジ部54aの先端に薄肉に形成された屈曲可能な第1ヒンジ部54bを介して接続された第1連結部54cと、第1連結部54cの先端に薄肉に形成された屈曲可能な第2ヒンジ部54dを介して接続された第2連結部54eと、第2連結部54eの先端に設けられた3個の係止爪54f…とを備える。フランジ部54aには、3個の係止爪54f…が係合可能な3個の係止孔54g…が形成される。   As shown in FIGS. 2, 3, 8 and 12, three through holes 14 c are formed along the front end of the cover 14, and locking means 54 for locking these through holes 14 c. Is integrally provided at the front end of the case 13. The locking means 54 includes a flange portion 54a projecting forward from the front end of the case 13 and a first connecting portion 54c connected via a bendable first hinge portion 54b formed thinly at the tip of the flange portion 54a. A second connecting portion 54e connected to the tip of the first connecting portion 54c through a thin bendable second hinge portion 54d, and three provided at the tip of the second connecting portion 54e. The locking claws 54f are provided. In the flange portion 54a, three locking holes 54g are engageable with the three locking claws 54f.

従って、図8に示すように、ケース13のフランジ部54aの上面にシール部材55を介してカバー14を載置した状態で、第1、第2ヒンジ部54b,54dを折り曲げて係止爪54f…をカバー14の貫通孔14c…を上から下に貫通させた後、係止爪54f…をフランジ部54aの係止孔54g…に係合させることで、カバー14の前部をケース13に固定することができる。   Accordingly, as shown in FIG. 8, with the cover 14 placed on the upper surface of the flange portion 54a of the case 13 via the seal member 55, the first and second hinge portions 54b and 54d are bent to engage the locking claw 54f. Is passed through the through-holes 14c of the cover 14 from the top to the bottom, and the engaging claws 54f are engaged with the engaging holes 54g of the flange portion 54a so that the front portion of the cover 14 is attached to the case 13. Can be fixed.

図2〜図4に示すように、バッテリパック12の前部には左右一対の押し込み部材56,56が設けられる。各押し込み部材56は後部押し込み部材56aおよび前部押し込み部材56bからなり、右側の後部押し込み部材56aは前部保持部材15の前壁15aの一部を直方体のブロック状に突出させることで形成され、左側の後部押し込み部材56aは前部保持部材15の前壁15aの左端部を前方に向けて突出するように屈曲させることで形成される。また左右一対の前部押し込み部材56b,56bは、ケース13の前壁13cの一部を直方体のブロック状に突出させることで形成される。   As shown in FIGS. 2 to 4, a pair of left and right pushing members 56, 56 are provided at the front portion of the battery pack 12. Each pusher member 56 includes a rear pusher member 56a and a front pusher member 56b. The right rear pusher member 56a is formed by projecting a part of the front wall 15a of the front holding member 15 in a rectangular parallelepiped block shape, The left rear pushing member 56a is formed by bending the left end portion of the front wall 15a of the front holding member 15 so as to protrude forward. The pair of left and right front pushing members 56b and 56b are formed by projecting a part of the front wall 13c of the case 13 in a rectangular parallelepiped block shape.

右側の後部押し込み部材56aおよび前部押し込み部材56bは前後方向に重なり合うように配置され、左側の後部押し込み部材56aおよび前部押し込み部材56bは前後方向に重なり合うように配置される。押し込み部材56の前後方向寸法f、あるいは後部押し込み部材56aの前後方向寸法gは、ジャンクションボード24の前後方向寸法よりも大きく設定される(図4参照)。その結果、前部保持部材15の前壁15aと、ケース13の前壁13cと、左右の後部押し込み部材56a,56aとに囲まれた空間に、ジャンクションボード24が収納される。また左右の前部押し込み部材56b,56bの高さは、左右の後部押し込み部材56a,56aの高さよりも大きく設定される。   The right rear pushing member 56a and the front pushing member 56b are arranged so as to overlap in the front-rear direction, and the left rear pushing member 56a and the front pushing member 56b are arranged so as to overlap in the front-rear direction. The longitudinal dimension f of the pushing member 56 or the longitudinal dimension g of the rear pushing member 56a is set larger than the longitudinal dimension of the junction board 24 (see FIG. 4). As a result, the junction board 24 is housed in a space surrounded by the front wall 15a of the front holding member 15, the front wall 13c of the case 13, and the left and right rear pushing members 56a and 56a. The left and right front push-in members 56b and 56b are set to be higher than the left and right rear push-in members 56a and 56a.

図1〜図3に示すように、PCU23から前方に延びる3相交流線57は、ケース13の前壁13cに設けたグロメット58から外部に引き出された後に、フロアパネル11の凹部11aの前壁11bに形成した孔11c(図1参照)を通してモータ・ジェネレータに接続される。グロメット58が設けられるケース13の前壁13cと、フロアパネル11の凹部11aの前壁11bに形成した孔11cとの間には、ケース13の前壁13cの一部を後向きに凹ませることで空間β(図3参照)が形成される。また前部保持部材15も、ケース13の凹みに合わせて一部を後ろ向きに凹ませている。   As shown in FIGS. 1 to 3, the three-phase AC line 57 extending forward from the PCU 23 is drawn out from a grommet 58 provided on the front wall 13 c of the case 13, and then the front wall of the recess 11 a of the floor panel 11. The motor / generator is connected through a hole 11c (see FIG. 1) formed in 11b. A part of the front wall 13c of the case 13 is recessed backward between the front wall 13c of the case 13 provided with the grommet 58 and the hole 11c formed in the front wall 11b of the recess 11a of the floor panel 11. A space β (see FIG. 3) is formed. Also, the front holding member 15 is partially recessed rearward in accordance with the recess of the case 13.

この空間βにより、後面衝突の衝突荷重でPCU23が前方に移動したとき、3相交流線57がケース13の前壁13cとフロアパネル11の凹部11aの前壁11bとの間に挟まれて損傷するのを防止することができる。   Due to this space β, when the PCU 23 moves forward due to the collision load of the rear collision, the three-phase AC line 57 is sandwiched between the front wall 13c of the case 13 and the front wall 11b of the recess 11a of the floor panel 11 and is damaged. Can be prevented.

次に、上記構成を備えた本発明の実施の形態の作用を説明する。   Next, the operation of the embodiment of the present invention having the above configuration will be described.

バッテリモジュール20…やPCU23を収納するケース13からカバー14を取り外すには、先ず2本のボルト48,48を緩めてカバー14の開口14aからリッド14bを取り外し、開口14aに露出したサービスプラグ47の第2半体50のロックレバー53を支軸52まわりに引き起こしてロックを解除した後、開口14aを通して第2半体50を第1半体49から引き抜いて分離する(図6参照)。これにより、サービスプラグ47内の電気接点が非接触になってバッテリモジュール20…が電気的に遮断され、ケース13の内部に触れても安全な状態になる。この状態から前部保持部材15および後部保持部材16に螺合する6本のボルト44…を緩めることで、カバー14を取り外すことができる。   To remove the cover 14 from the case 13 that houses the battery modules 20... And the PCU 23, first, the two bolts 48, 48 are loosened, the lid 14b is removed from the opening 14a of the cover 14, and the service plug 47 exposed to the opening 14a is removed. After the lock lever 53 of the second half 50 is raised around the support shaft 52 to release the lock, the second half 50 is pulled out from the first half 49 through the opening 14a and separated (see FIG. 6). As a result, the electrical contacts in the service plug 47 become non-contact, the battery modules 20 are electrically disconnected, and a safe state is achieved even if the inside of the case 13 is touched. From this state, the cover 14 can be removed by loosening the six bolts 44 that are screwed into the front holding member 15 and the rear holding member 16.

またサービスプラグ47の第2半体50を引き抜く前は、ストッパ部材46のピン46hに上方から第2半体50のピン孔50aが嵌合しているため、カバー14を取り外そうとしても、カバー14と一体のストッパ部材46が第2半体50と干渉してしまい、不用意にカバー14が取り外される事態を回避することができる。   Before the second half 50 of the service plug 47 is pulled out, the pin hole 50a of the second half 50 is fitted to the pin 46h of the stopper member 46 from above. The situation where the stopper 14 integral with the cover 14 interferes with the second half 50 and the cover 14 is inadvertently removed can be avoided.

カバー14を取り付けるには、前述とは逆にケース13にカバー14を乗せてボルト44…で前部保持部材15および後部保持部材16に固定した後に、カバー14の開口14aからサービスプラグ47の第2半体50を挿入し、そのピン孔50aが係止ピン51に嵌合するように第1半体49に対して位置決めした状態で、ロックレバー53を水平に倒せば良い。するとロックレバー53のカム溝53aが第1半体49の係止ピン51に沿って摺動することで、第2半体50は第1半体49に押し込まれて結合され、カム溝53aと係止ピン51との係合により第2半体50が抜けないように係止され、かつバッテリモジュール20…がPCU23等に電気的に接続される。   In order to attach the cover 14, the cover 14 is placed on the case 13 and fixed to the front holding member 15 and the rear holding member 16 with bolts 44. The lock lever 53 may be tilted horizontally in a state where the second half 50 is inserted and positioned with respect to the first half 49 so that the pin hole 50a is fitted to the locking pin 51. Then, the cam groove 53a of the lock lever 53 slides along the locking pin 51 of the first half 49, so that the second half 50 is pushed into the first half 49 and coupled to the cam groove 53a. The second half 50 is locked so as not to come off by engagement with the locking pin 51, and the battery modules 20 are electrically connected to the PCU 23 and the like.

そして最後に、ボルト48,48でリッド14bを固定した後に、係止手段54でカバー14の前端をケース13に固定する。即ち、係止手段54の第1、第2ヒンジ部54b,54dを屈曲させて第1、第2連結部54c,54eをカバー14の上方に揺動させ、第2連結部54eの先端に設けた3個の係止爪54f…をフランジ部54aの3個の係止孔54gに係合させる。   Finally, after fixing the lid 14 b with the bolts 48, 48, the front end of the cover 14 is fixed to the case 13 with the locking means 54. That is, the first and second hinge portions 54b and 54d of the locking means 54 are bent to swing the first and second connecting portions 54c and 54e above the cover 14, and are provided at the tip of the second connecting portion 54e. The three locking claws 54f are engaged with the three locking holes 54g of the flange portion 54a.

さて、車両が後方から追突されたとき、車体後部のトランクルームのフロアパネル11の凹部11aに収納されたバッテリパック12のうち、最も後方に位置する冷却ファン27に最初に衝突荷重が入力する。冷却ファン27に入力した衝突荷重はステー31を介して後部保持部材16に伝達されるが、ステー31の強度は後部保持部材16の強度よりも低く設定されているので、ステー31が変形して衝撃を吸収することで後部保持部材16の変形が防止される。   Now, when the vehicle is collided from the rear, a collision load is first input to the cooling fan 27 located at the rearmost of the battery packs 12 housed in the recess 11a of the floor panel 11 of the trunk room at the rear of the vehicle body. The collision load input to the cooling fan 27 is transmitted to the rear holding member 16 through the stay 31, but the strength of the stay 31 is set lower than the strength of the rear holding member 16, so that the stay 31 is deformed. By absorbing the impact, deformation of the rear holding member 16 is prevented.

ケース13の内部に収納されたバッテリモジュール20…およびPCU23はジャンクションボード24を介してケーブルで接続されているが、後面衝突の衝突荷重が冷却ファン27からその前方に位置するPCU23に伝達され、PCU23がバッテリモジュール20…に対して前方に位置ずれしてしまうと、PCU23およびバッテリモジュール20…を接続するケーブルが断線して地絡が発生する可能性がある。   The battery modules 20... And the PCU 23 housed in the case 13 are connected by cables via the junction board 24, but the collision load of the rear collision is transmitted from the cooling fan 27 to the PCU 23 positioned in front of the PCU 23. If the position of the battery module 20 is shifted forward, the cable connecting the PCU 23 and the battery module 20 may be disconnected and a ground fault may occur.

しかしながら、本実施の形態によれば、ステー31が容易に変形して衝撃を吸収するため、衝突荷重が後部保持部材16およびその前方のPCU23に及び難くなり、PCU23の移動によるケーブルの断線を未然に防止することができる。しかもステー31の本体部31aは、後部保持部材16に固定される溶接部31b…と、冷却ファン27に固定されるフランジ部31c…との間に山形に屈曲する脆弱な屈曲部31d…を備えるので、衝突荷重により屈曲部31d…が容易に座屈して衝撃を吸収することができる。このとき、山形の屈曲部31d…の頂部はステー31の外側を向くため、ステー31は外側に変形して冷却ファン27との干渉が回避されることで、その変形が一層容易になる。   However, according to the present embodiment, the stay 31 is easily deformed to absorb the impact, so that the collision load is difficult to reach the rear holding member 16 and the PCU 23 in front of the rear holding member 16, and the cable is not broken due to the movement of the PCU 23. Can be prevented. Moreover, the main body 31 a of the stay 31 includes a fragile bent portion 31 d that bends in a mountain shape between a welded portion 31 b that is fixed to the rear holding member 16 and a flange portion 31 c that is fixed to the cooling fan 27. Therefore, the bent portions 31d can be easily buckled by the collision load to absorb the impact. At this time, the tops of the angle-shaped bent portions 31d... Face the outside of the stay 31. Therefore, the stay 31 is deformed to the outside, and the interference with the cooling fan 27 is avoided.

特に、本実施の形態によれば、後部保持部材16は、冷却ファン27の前方に位置する部分がその他の部分に対して前方に屈曲しているため(図3参照)、後面衝突の衝突荷重を受けた冷却ファン27が後部保持部材16と干渉せずに前進できる距離が大きくなり、衝突荷重が後部保持部材16の一層及び難くなる。   In particular, according to the present embodiment, the rear holding member 16 has a portion located in front of the cooling fan 27 bent forward with respect to the other portions (see FIG. 3). The distance that the cooled cooling fan 27 can move forward without interfering with the rear holding member 16 is increased, and the collision load becomes more difficult for the rear holding member 16.

またステー31を変形させながら冷却ファン27が前進するとき、ファンロータ35の直径aは後部保持部材16の貫通孔16bの直径bよりも小さく設定され、かつ前部ケーシング33および後部ケーシング34の直径cは貫通孔16bの直径bよりも大きく設定されるので(図5参照)、冷却ファン27の脆弱な合成樹脂製の前部ケーシング33および後部ケーシング34が貫通孔16bの周囲と干渉して破壊し、後部保持部材16よりも強度の高いファンロータ35は、後部保持部材16と干渉することなく貫通孔16bの内部に嵌合する。上記寸法関係により、貫通孔16bの直径を最小限に抑えて後部保持部材16の剛性を確保しながら、ファンロータ35を後部保持部材16の貫通孔16bに確実に嵌合させることができる。   When the cooling fan 27 moves forward while deforming the stay 31, the diameter a of the fan rotor 35 is set smaller than the diameter b of the through hole 16 b of the rear holding member 16 and the diameters of the front casing 33 and the rear casing 34. Since c is set larger than the diameter b of the through hole 16b (see FIG. 5), the front casing 33 and the rear casing 34 made of synthetic resin, which is vulnerable to the cooling fan 27, interfere with the surroundings of the through hole 16b and are destroyed. The fan rotor 35 having higher strength than the rear holding member 16 is fitted into the through hole 16 b without interfering with the rear holding member 16. With the above dimensional relationship, the fan rotor 35 can be reliably fitted into the through hole 16b of the rear holding member 16 while the rigidity of the rear holding member 16 is secured by minimizing the diameter of the through hole 16b.

以上のようにして、ファンロータ35が後部保持部材16を押圧して変形させることが防止され、ファンロータ35の前方に位置するPCU23が後部保持部材16に押されてバッテリモジュール20…に対して位置ずれすることがなくなり、ケーブルの断線が未然に防止される。また衝突荷重が大きい場合には、ファンロータ35が貫通孔16bに嵌合した状態で後部保持部材16の全体が前進するが、PCU23およびバッテリモジュール20…は後部保持部材16に押されて一体に前進するため、それらの位置関係がずれることはない。   As described above, the fan rotor 35 is prevented from pressing and deforming the rear holding member 16, and the PCU 23 located in front of the fan rotor 35 is pushed by the rear holding member 16 to the battery modules 20. Misalignment is eliminated and cable breakage is prevented. When the collision load is large, the entire rear holding member 16 moves forward with the fan rotor 35 fitted in the through hole 16b. However, the PCU 23 and the battery modules 20 are pushed by the rear holding member 16 to be integrated. Since they move forward, their positional relationship does not shift.

また後部保持部材16の貫通孔16bの後端からPCU23の後端までの前後方向距離dは、ファンロータ35の前後方向厚さeよりも大きく設定されるので(図5参照)、後面衝突の衝突荷重で前進したファンロータ35が後部保持部材16の貫通孔16bの内部に完全に嵌合しても、ファンロータ35の前端とPCU23の後端との間には隙間が残されており、PCU23が前方に移動するのを確実に防止することができる。   Further, since the front-rear direction distance d from the rear end of the through hole 16b of the rear holding member 16 to the rear end of the PCU 23 is set larger than the front-rear direction thickness e of the fan rotor 35 (see FIG. 5), Even when the fan rotor 35 moved forward by the collision load is completely fitted into the through hole 16b of the rear holding member 16, a gap remains between the front end of the fan rotor 35 and the rear end of the PCU 23. It is possible to reliably prevent the PCU 23 from moving forward.

また後部保持部材16の後壁16aの後面には高電圧が印加されるセル電圧センサ25,25が設けられているため、後面衝突の衝突荷重でセル電圧センサ25,25が破損すると地絡が発生する可能性がある。しかしながら、本実施の形態によれば、後部保持部材16の後壁16aの後面にセンサカバー26を固定し、後部保持部材16およびセンサカバー26間にセル電圧センサ25,25を配置したので、後面衝突の衝突荷重をセンサカバー26を介して後部保持部材16に伝達することで、センサカバー26および後部保持部材16間にセル電圧センサ25,25を保護する空間を確保し、セル電圧センサ25,25の損傷を防止することができる。   In addition, since cell voltage sensors 25 and 25 to which a high voltage is applied are provided on the rear surface of the rear wall 16a of the rear holding member 16, a ground fault occurs when the cell voltage sensors 25 and 25 are damaged by a collision load of a rear collision. May occur. However, according to the present embodiment, the sensor cover 26 is fixed to the rear surface of the rear wall 16a of the rear holding member 16, and the cell voltage sensors 25, 25 are disposed between the rear holding member 16 and the sensor cover 26. By transmitting the collision load of the collision to the rear holding member 16 via the sensor cover 26, a space for protecting the cell voltage sensors 25, 25 is secured between the sensor cover 26 and the rear holding member 16, and the cell voltage sensor 25, 25 damage can be prevented.

4個のバッテリモジュール20…は、その四隅に前後方向に延びる各4本のフレーム29…を備えており、それらのフレーム29…は後部保持部材16の前面および前部保持部材15の後面を接続し、かつセンサカバー26、後部保持部材16およびフレーム29…の強度は略同一であるので、後部保持部材16に入力した衝突荷重をフレーム29…を介して前部保持部材15に伝達して効果的に分散させることができる。   The four battery modules 20 are each provided with four frames 29 extending in the front-rear direction at the four corners, and these frames 29 connect the front surface of the rear holding member 16 and the rear surface of the front holding member 15. In addition, since the strength of the sensor cover 26, the rear holding member 16 and the frame 29 is substantially the same, the collision load input to the rear holding member 16 is transmitted to the front holding member 15 via the frame 29 ... Can be dispersed.

このとき、センサカバー26は後部保持部材16の後面に固定される突出部41A,41B,41C,41Dを備えるので、突出部41A,41B,41C,41Dでセル電圧センサ25,25を保護する空間を確保することができるだけでなく、三つの突出部41A,41C,41Dはバッテリモジュール20…のフレーム29…と前後方向に整列するので(図3参照)、衝突荷重を突出部41A,41C,41Dからフレーム29…に確実に伝達することができる。   At this time, since the sensor cover 26 includes the protruding portions 41A, 41B, 41C, and 41D that are fixed to the rear surface of the rear holding member 16, the space that protects the cell voltage sensors 25 and 25 by the protruding portions 41A, 41B, 41C, and 41D. Since the three protrusions 41A, 41C, 41D are aligned with the frame 29 of the battery module 20 in the front-rear direction (see FIG. 3), the collision load is projected on the protrusions 41A, 41C, 41D. Can be reliably transmitted to the frame 29.

後面衝突の衝突荷重がバッテリモジュール20…のフレーム29…を介して伝達された前部保持部材15が前進すると、カバー14の下面に固定されたストッパ部材46の下部が前部保持部材15により前方に押圧される(図7参照)。このとき、ストッパ部材46の強度がカバー14の強度よりも高いと、カバー14の前部、つまり前部保持部材15の上面にボルト44…で固定された位置よりも前方部分が上向きに変形して持ち上がってしまい、カバー14とケース13との間に隙間が発生する可能性がある。このような隙間が発生すると、この隙間に作業者が手を差し込んだときにバッテリモジュール20…等の高電圧部分に触れる虞がある。   When the front holding member 15 to which the collision load of the rear collision is transmitted through the frame 29 of the battery module 20 advances, the lower part of the stopper member 46 fixed to the lower surface of the cover 14 is moved forward by the front holding member 15. (See FIG. 7). At this time, if the strength of the stopper member 46 is higher than the strength of the cover 14, the front portion of the cover 14, that is, the front portion of the front holding member 15 is fixed upward with respect to the position fixed with the bolts 44. May be lifted and a gap may be generated between the cover 14 and the case 13. If such a gap occurs, there is a risk of touching a high voltage portion such as the battery module 20 when the operator inserts a hand into the gap.

しかしながら、本実施の形態によれば、ストッパ部材46が前部保持部材15により前方に押圧されたとき、ストッパ部材46は後方に位置する溶接部46d,46eでカバー14の下面に固定され、かつ前方に位置する切欠き46f,46gの上方に空間を備えるため、ストッパ部材46が前上方に向かって容易に曲げ変形することでカバー14の前部が上向きに持ち上がることが防止される。   However, according to the present embodiment, when the stopper member 46 is pressed forward by the front holding member 15, the stopper member 46 is fixed to the lower surface of the cover 14 by the welded portions 46 d and 46 e located at the rear, and Since the space is provided above the notches 46f and 46g located in the front, the front portion of the cover 14 is prevented from being lifted upward by the bending of the stopper member 46 toward the front upper direction.

またカバー14の前部は係止手段54によりケース13に固定されているため、この係止手段54によってもカバー14の前部の持ち上がりが防止される。しかも万一カバー14の前部の持ち上がっても、係止手段54はフランジ部54aと係止爪54f…との間にケース13の前端に沿って車幅方向に延びる第1、第2連結部54c,54eを備えるため(図8参照)、この第1、第2連結部54c,54eがカバー14とケース13との間の隙間を前方から覆うことで、作業者が隙間に手を差し込むことが確実に防止される。   Further, since the front portion of the cover 14 is fixed to the case 13 by the locking means 54, the locking means 54 also prevents the front portion of the cover 14 from being lifted. In addition, even if the front portion of the cover 14 is lifted, the locking means 54 has first and second connecting portions extending in the vehicle width direction along the front end of the case 13 between the flange portion 54a and the locking claws 54f. 54c and 54e (see FIG. 8), the first and second connecting portions 54c and 54e cover the gap between the cover 14 and the case 13 from the front, so that the operator inserts his hand into the gap. Is reliably prevented.

また係止爪54f…はフランジ部54aに第1ヒンジ部54b、第1連結部54c、第2ヒンジ部54dおよび第2連結部54eを介して連結されており、係止爪54f…は係止孔54g…から抜けるときに前上方に向かって揺動するのに対し、前部保持部材15の上面にボルト44…で固定されたカバー14の前部は、そのボルト44…を支点としとして後上方に向かって揺動する。このように、係止爪54f…の移動方向とカバー14の前部の移動方向とが異なることにより、カバー14が上方に持ち上がろうとしたときに係止爪54f…が係止孔54g…から抜け難くなり、カバー14の前部の持ち上がりが一層確実に防止される。   The locking claws 54f are connected to the flange portion 54a via the first hinge portion 54b, the first connecting portion 54c, the second hinge portion 54d, and the second connecting portion 54e. The front part of the cover 14 fixed to the upper surface of the front holding member 15 with bolts 44... Swings backward with the bolts 44. Swings upward. As described above, the movement direction of the locking claws 54f and the movement direction of the front portion of the cover 14 are different, so that when the cover 14 is lifted upward, the locking claws 54f. This prevents the cover 14 from being lifted more reliably.

また前部保持部材15の前面にはバッテリモジュール20…の総プラス端子30Aおよび総マイナス端子30Bが露出しているが(図2参照)、係止手段54が総プラス端子30Aの前方に配置されているため、係止手段54で遮ることで作業者の指が総プラス端子30Aに触れることが防止される。更に、係止手段54はケース13と一体に設けられているため、係止爪54f…を係止孔54g…から外したときでも係止手段54がケース13から分離することがなく、係止手段54を落としたり紛失したりする事態を未然に回避することができる。   Further, the total positive terminals 30A and the total negative terminals 30B of the battery modules 20 are exposed on the front surface of the front holding member 15 (see FIG. 2), but the locking means 54 is disposed in front of the total positive terminals 30A. Therefore, the operator's finger is prevented from touching the total plus terminal 30A by being blocked by the locking means 54. Further, since the locking means 54 is provided integrally with the case 13, the locking means 54 is not separated from the case 13 even when the locking claws 54f are removed from the locking holes 54g. The situation where the means 54 is dropped or lost can be avoided in advance.

また後面衝突の衝突荷重により前進するバッテリモジュール20…のフレーム29…に押圧されて前部保持部材15が前進すると、前部保持部材15の前壁15aの前面に支持されたジャンクションボード24がフロアパネル11の凹部11aの前壁11bとの間に挟まれて損傷する虞があるが、本実施の形態によれば、前部保持部材15の前壁15aに凹部11aの前壁11bに対向する押し込み部材56を設け、押し込み部材56の前後方向寸法をジャンクションボード24の前後方向寸法よりも大きく設定したので(図4参照)、押し込み部材46が凹部11aの前壁11bに当接して突っ張ることで形成される空間にジャンクションボード24を位置させて損傷を防止することができる。   When the front holding member 15 is pushed forward by the frame 29 of the battery module 20 that moves forward due to the collision load of the rear collision, the junction board 24 supported on the front surface of the front wall 15a of the front holding member 15 is moved to the floor. Although there is a risk of being pinched and damaged between the front wall 11b of the recess 11a of the panel 11, according to the present embodiment, the front wall 15a of the front holding member 15 faces the front wall 11b of the recess 11a. Since the push-in member 56 is provided and the longitudinal dimension of the push-in member 56 is set larger than the longitudinal dimension of the junction board 24 (see FIG. 4), the push-in member 46 abuts against the front wall 11b of the recess 11a and stretches. The junction board 24 can be positioned in the formed space to prevent damage.

このとき、仮に押し込み部材56が後部押し込み部材56aおよび前部押し込み部材56bに2分割されていないとすると、押し込み部材56の前端が傾斜する凹部11aの前壁11bに沿って前上方に滑ったときに、押し込み部材56の後端が前部保持部材15との接続部で折れてしまい、その機能を果たさなくなる虞がある。しかしながら、本実施の形態によれば、押し込み部材56を後部押し込み部材56aおよび前部押し込み部材56bに2分割したので、万一前部押し込み部材56bとケース13の前壁13cとの接続が外れても、前壁11bおよびケース13に挟まれた前部押し込み部材56bと、前部保持部材15に固定された後部押し込み部材56aとが突っ張ってジャンクションボード24を保護するための空間を確保することで、押し込み部材56の機能が維持される。   At this time, if the pushing member 56 is not divided into two parts, the rear pushing member 56a and the front pushing member 56b, when the front end of the pushing member 56 slides forward and upward along the front wall 11b of the inclined recess 11a. In addition, the rear end of the pushing member 56 may be broken at the connection portion with the front holding member 15, and the function may not be performed. However, according to the present embodiment, since the pushing member 56 is divided into the rear pushing member 56a and the front pushing member 56b, the connection between the front pushing member 56b and the front wall 13c of the case 13 is disconnected. In addition, the front pushing member 56b sandwiched between the front wall 11b and the case 13 and the rear pushing member 56a fixed to the front holding member 15 are stretched to secure a space for protecting the junction board 24. The function of the pushing member 56 is maintained.

また前部押し込み部材56bの高さは、後部押し込み部材56aの高さよりも大きく設定されるので、万一前部押し込み部材56bとケース13の前壁13cとの接続が外れても、後部押し込み部材56aの荷重を前部押し込み部材56bを介して凹部11aの前壁11bに伝達し、押し込み部材56の機能を確実に発揮させることができる。   In addition, since the height of the front pushing member 56b is set larger than the height of the rear pushing member 56a, even if the connection between the front pushing member 56b and the front wall 13c of the case 13 is disconnected, the rear pushing member The load of 56a can be transmitted to the front wall 11b of the recessed part 11a via the front pushing member 56b, and the function of the pushing member 56 can be exhibited reliably.

以上、本発明の実施の形態を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。   The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

例えば、本発明の蓄電池は実施の形態のリチウムイオンバッテリに限定されるものではない。   For example, the storage battery of the present invention is not limited to the lithium ion battery of the embodiment.

また実施の形態では係止手段54をケース13と一体に設けているが、それをカバー14と一体に設けても良く、ケース13およびカバー14と別体に設けても良い。   In the embodiment, the locking means 54 is provided integrally with the case 13, but it may be provided integrally with the cover 14, or may be provided separately from the case 13 and the cover 14.

また係止手段54の第1連結部54cおよび第2連結部54eはケース13と一体でなくても良い。即ち、係止手段54は第1ヒンジ部54bの部分で切り離されていても良い。   Further, the first connecting portion 54 c and the second connecting portion 54 e of the locking means 54 may not be integrated with the case 13. That is, the locking means 54 may be cut off at the first hinge portion 54b.

12 バッテリパック(蓄電装置)
13 ケ−ス
14 カバー
15 前部保持部材
15a 前壁
16 後部保持部材
16a 後壁
20 バッテリモジュール(蓄電池群)
30A 総プラス端子
30B 総マイナス端子
54 係止手段
54c 第1連結部(覆い部)
54e 第2連結部(覆い部)
54f 係止爪
12 Battery pack (power storage device)
13 Case 14 Cover 15 Front holding member
15a front wall 16 rear holding member
16a rear wall 20 battery module (storage battery group)
30A Total plus terminal 30B Total minus terminal 54 Locking means 54c 1st connection part (cover part)
54e 2nd connection part (cover part)
54f Locking claw

Claims (4)

車両の車体後部に搭載される蓄電装置(12)が、蓄電池群(20)を収納するケ−ス(13)と、前記ケース(13)の上面開口部を閉塞するカバー(14)と、前記蓄電池群(20)を支持して前記ケース(13)を車幅方向に貫通する前部保持部材(15)および後部保持部材(16)と、前記ケース(13)および前記カバー(14)を結合する係止手段(54)とを備え、前記カバー(14)は前記前部保持部材(15)および前記後部保持部材(16)の上面に固定され、前記カバー(14)の前部は前記前部保持部材(15)から前方に延出し、前記蓄電池群(20)は前記前部保持部材(15)の前壁(15a)および前記後部保持部材(16)の後壁(16a)に固定される車両用蓄電装置であって、
前記係止手段(54)は前記ケース(14)および前記カバー(14)の前側の合わせ部を覆う覆い部(54c,54e)を有することを特徴とする車両用蓄電装置。
Power storage device mounted on the vehicle body rear portion of the vehicle (12), Ke accommodating a battery group (20) - and scan (13), a cover (14) for closing the upper opening of the case (13), wherein A front holding member (15) and a rear holding member (16) that support the storage battery group (20) and penetrate the case (13) in the vehicle width direction are coupled to the case (13) and the cover (14). Locking means (54), and the cover (14) is fixed to the upper surfaces of the front holding member (15) and the rear holding member (16), and the front part of the cover (14) is the front part The battery group (20) is fixed to the front wall (15a) of the front holding member (15) and the rear wall (16a) of the rear holding member (16). A vehicle power storage device,
The power storage device for vehicles, wherein the locking means (54) has a cover (54c, 54e) that covers the case (14) and a front mating portion of the cover (14).
前記係止手段(54)は複数の係止爪(54f)を備え、前記覆い部(54c,54e)は前記複数の係止爪(54f)を一体に連結することを特徴とする、請求項1に記載の車両用蓄電装置。   The locking means (54) includes a plurality of locking claws (54f), and the cover (54c, 54e) integrally connects the plurality of locking claws (54f). The power storage device for a vehicle according to 1. 前記係止手段(54)は、非係止状態において前記ケース(13)あるいは前記カバー(14)に連結していることを特徴とする、請求項1または請求項2に記載の車両用蓄電装置。   The power storage device for a vehicle according to claim 1 or 2, wherein the locking means (54) is connected to the case (13) or the cover (14) in a non-locking state. . 前記蓄電池群(20)の総プラス端子(30A)および総マイナス端子(30B)は前記前部保持部材(15)の前壁(15a)の前面に露出しており、前記係止手段(54)は、前記総プラス端子(30A)および前記総マイナス端子(30B)の少なくとも一方に対向する位置に設けられることを特徴とする、請求項1〜請求項3の何れか1項に記載の車両用蓄電装置
The total positive terminal (30A) and the total negative terminal (30B) of the storage battery group (20) are exposed on the front surface of the front wall (15a) of the front holding member (15), and the locking means (54) is characterized in that it is provided on at least one facing to the position of total positive terminal (30A) and said total negative terminal (30B), for a vehicle according to any one of claims 1 to 3 Power storage device .
JP2013102342A 2013-05-14 2013-05-14 Power storage device for vehicle Active JP6070994B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2013102342A JP6070994B2 (en) 2013-05-14 2013-05-14 Power storage device for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2013102342A JP6070994B2 (en) 2013-05-14 2013-05-14 Power storage device for vehicle

Publications (2)

Publication Number Publication Date
JP2014222641A JP2014222641A (en) 2014-11-27
JP6070994B2 true JP6070994B2 (en) 2017-02-01

Family

ID=52122063

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2013102342A Active JP6070994B2 (en) 2013-05-14 2013-05-14 Power storage device for vehicle

Country Status (1)

Country Link
JP (1) JP6070994B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6627330B2 (en) 2015-08-24 2020-01-08 スズキ株式会社 Vehicle rear floor structure
JP6118381B2 (en) * 2015-09-30 2017-04-19 富士重工業株式会社 Automotive battery
CN113544050B (en) * 2019-03-01 2023-06-20 印度商宜诺摩托克普有限公司 Front cover for a vehicle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3257373B2 (en) * 1995-10-05 2002-02-18 矢崎総業株式会社 Seal structure of waterproof case
JP2000316219A (en) * 1999-04-27 2000-11-14 Sumitomo Wiring Syst Ltd Electric connection box
JP5091060B2 (en) * 2007-11-21 2012-12-05 本田技研工業株式会社 Vehicle power supply
JP2010284984A (en) * 2009-06-09 2010-12-24 Fuji Heavy Ind Ltd Battery mounting structure for vehicle
JP5408438B2 (en) * 2010-01-15 2014-02-05 三菱自動車工業株式会社 Battery case for vehicle
JP6065692B2 (en) * 2013-03-25 2017-01-25 三菱自動車工業株式会社 Battery pack

Also Published As

Publication number Publication date
JP2014222641A (en) 2014-11-27

Similar Documents

Publication Publication Date Title
JP6070995B2 (en) Power storage device for vehicle
JP6070991B2 (en) Power storage device for vehicle
JP6070993B2 (en) Power storage device for vehicle
US10358048B2 (en) Onboard battery for vehicle
US10434861B2 (en) Power equipment unit and vehicle
JP6357512B2 (en) Harness holder, power equipment unit and vehicle
JP6070992B2 (en) Power storage device for vehicle
JP5740284B2 (en) High voltage control equipment unit mounting structure
WO2017109870A1 (en) Mounting structure for high-voltage control device unit
JP5421145B2 (en) connector
JP6070994B2 (en) Power storage device for vehicle
JP6143172B2 (en) Power storage device for vehicle
JP5997468B2 (en) Hybrid car
JP2015153533A (en) Battery module fixing structure
JP2017077786A (en) vehicle
JP7435546B2 (en) In-vehicle electrical equipment
JP7497743B2 (en) Battery case
JP7135813B2 (en) power storage device
JP6701990B2 (en) Service plug mounting structure
JP2017039442A (en) High voltage device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20151127

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20160914

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20160921

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20161115

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20161207

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20161221

R150 Certificate of patent or registration of utility model

Ref document number: 6070994

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150