JP2013086609A - Vehicular battery pack - Google Patents

Vehicular battery pack Download PDF

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JP2013086609A
JP2013086609A JP2011227635A JP2011227635A JP2013086609A JP 2013086609 A JP2013086609 A JP 2013086609A JP 2011227635 A JP2011227635 A JP 2011227635A JP 2011227635 A JP2011227635 A JP 2011227635A JP 2013086609 A JP2013086609 A JP 2013086609A
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battery
battery pack
vehicle
front seat
height
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JP5853572B2 (en
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Akira Suzuki
彰 鈴木
Toru Kamata
亨 鎌田
Hiroki Kawamura
裕樹 河村
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a vehicular battery pack that can ensure a space for passing piping even when a battery pack is extended to the feet of an occupant in a front seat, or of increasing a loading height of the battery pack without changing a minimum ground clearance of a vehicle.SOLUTION: The vehicular battery pack stores a plurality of battery modules 11 and an electric element component 12 used to control the whole battery pack 1 in a container formed from a battery tray 13 extended to the feet of an occupant in a front seat and a battery cover 14. The electric element component 12 is structured to be disposed on the vehicular front side of each of the battery modules 11 and so that a vertical height thereof is designed to be lower than each of the battery modules 11.

Description

本発明は、車両用バッテリパックに関する。   The present invention relates to a vehicle battery pack.

電動機を動力源として用いる電気自動車や、電動機と他の駆動源とを組み合わせて用いるハイブリッド車などの電動車両においては、当該車両に、電動機へ電力を供給するための車両用バッテリが搭載される。   In an electric vehicle such as an electric vehicle using an electric motor as a power source or a hybrid vehicle using a combination of an electric motor and another drive source, a vehicle battery for supplying electric power to the electric motor is mounted on the vehicle.

特に、電気自動車においては、走行距離を確保するためにできるだけ多くのバッテリを搭載することが重要な課題となっている。
例えば、下記特許文献１には、前席の乗員の足下までバッテリパックを延設した構造が開示されている。 In particular, in an electric vehicle, it is an important issue to mount as many batteries as possible in order to secure a traveling distance.
For example, Patent Document 1 below discloses a structure in which a battery pack is extended to the feet of a front passenger.

特許第３８１９６０５号公報Japanese Patent No. 3819605

しかしながら、特許文献１に記載された発明においては、バッテリパックを前席の乗員の足下まで延ばしているとともに、容器内にバッテリモジュール、コントロールユニット及びパワードライブユニットを詰め込んだ状態となっていることから、必要に応じて配管を通す空間を確保することが困難となるおそれがあった。また、走行距離を伸ばすためにバッテリパックの積載高を増やした場合、車両の床下と地面との最低地上高を確保するためにフロアパネルを上方へ移動させる必要が生じ、車室内の空間が狭くなってしまう、又は車室内の空間を維持するためには車両の屋根を高く設定せざるを得なくなるというおそれがあった。   However, in the invention described in Patent Document 1, since the battery pack extends to the feet of the front seat occupant and the battery module, the control unit, and the power drive unit are packed in the container, There was a possibility that it would be difficult to secure a space through which the piping passes as necessary. In addition, when the load height of the battery pack is increased in order to extend the travel distance, the floor panel needs to be moved upward in order to ensure the minimum ground clearance between the vehicle floor and the ground, resulting in a narrow space in the vehicle interior. In order to maintain the space in the passenger compartment, the roof of the vehicle must be set high.

このようなことから本発明は、バッテリパックを前席の乗員の足下まで伸ばした場合であっても配管を通す空間を確保する、または、車両の最低地上高を変更することなくバッテリパックの積載高を増やすことができる車両用バッテリパックを提供することを目的とする。   For this reason, the present invention secures a space through which the pipe passes even when the battery pack is extended to the feet of the front seat occupant or loads the battery pack without changing the minimum ground clearance of the vehicle. It aims at providing the battery pack for vehicles which can increase height.

上記の課題を解決するための第１の発明に係る車両用バッテリパックは、複数のバッテリと、前記バッテリの制御に用いられる電気要素部品と、少なくとも前記電気要素部品を収納する容器とを有する車両用バッテリパックにおいて、前記電気要素部品は、前記バッテリの車両前方側かつ前席の乗員の足下に対応する位置に配置され、前記容器の上面は、前記電気要素部品に対応する部分が、前記バッテリの上面に比較して低くなるように形成されることを特徴とする。   A vehicle battery pack according to a first invention for solving the above-described problem includes a plurality of batteries, an electric component used for controlling the battery, and a container that stores at least the electric component. In the battery pack, the electric element component is disposed at a position corresponding to the front side of the front passenger of the battery of the battery, and a portion of the upper surface of the container corresponding to the electric element component is the battery. It is characterized in that it is formed so as to be lower than the upper surface.

上記の課題を解決する第２の発明に係る車両用バッテリパックは、第１の発明に係る車両用バッテリパックにおいて、前記バッテリが前記前席の座席下に配置され、前記車両用バッテリパックの上部に設けられるフロアパネルは、前記車両用バッテリパックの形状に沿って、前記前席の乗員の足下に対応する位置が、前記前席の座席下に対応する位置に比較して低くなっていることを特徴とする。   A vehicle battery pack according to a second invention for solving the above-described problems is the vehicle battery pack according to the first invention, wherein the battery is disposed under the seat in the front seat, and the upper part of the vehicle battery pack. The floor panel provided in the vehicle seat has a lower position corresponding to the feet of the front seat occupant than the position corresponding to the lower seat position of the front seat along the shape of the vehicle battery pack. It is characterized by.

上記の課題を解決する第３の発明に係る車両用バッテリパックは、第１または第２の発明に係る車両用バッテリパックにおいて、前記電気要素部品は、その高さが前記バッテリの高さの３／４以下となるように設計されていることを特徴とする。   A vehicle battery pack according to a third aspect of the present invention that solves the above problem is the vehicle battery pack according to the first or second aspect of the invention, wherein the electrical element component has a height that is 3 times the height of the battery. Designed to be / 4 or less.

上述した第１の発明に係る車両用バッテリパックによれば、複数のバッテリと、バッテリの制御に用いられる電気要素部品と、少なくとも電気要素部品を収納する容器とを有する車両用バッテリパックにおいて、電気要素部品は、バッテリの車両前方側かつ前席の乗員の足下に対応する位置に配置され、容器の上面は、電気要素部品に対応する部分が、バッテリの上面に比較して低くなるように形成されるので、電気要素部品の上方に空隙が形成されることとなり、この空隙を、車両前部に搭載されるラジエータ等の装置につなぐ配管を通すために用いる、又は、前席の乗員の足下の空間として利用する等が可能となり、車両の利便性を向上させることができる。   According to the vehicle battery pack of the first aspect described above, in the vehicle battery pack having a plurality of batteries, an electric element part used for controlling the battery, and a container for storing at least the electric element part, The component parts are disposed at positions corresponding to the front side of the battery and the feet of the front seat occupant, and the upper surface of the container is formed such that the portion corresponding to the electric element parts is lower than the upper surface of the battery. As a result, a gap is formed above the electrical component parts, and this gap is used for passing piping connected to a device such as a radiator mounted on the front of the vehicle, or under the feet of the passenger in the front seat It can be used as a space for the vehicle and the convenience of the vehicle can be improved.

また、第２の発明に係る車両用バッテリパックによれば、第１の発明に係る車両用バッテリパックにおいて、バッテリが前席の座席下に配置され、車両用バッテリパックの上部に設けられるフロアパネルは、車両用バッテリパックの形状に沿って、前席の乗員の足下に対応する位置が、前席の座席下に対応する位置に比較して低くなっているので、車両の地上高を維持しつつ前席の乗員の足下の空間を確保することができるとともに、前席のシート下部の空間にはバッテリを十分に積載することができる。   According to the vehicle battery pack of the second invention, in the vehicle battery pack according to the first invention, the battery is disposed below the front seat and is provided on the upper portion of the vehicle battery pack. The position corresponding to the feet of the passengers in the front seat along the shape of the battery pack for the vehicle is lower than the position corresponding to the seats under the seat in the front seat. In addition, it is possible to secure a space under the feet of the occupant in the front seat and sufficiently load a battery in the space below the seat in the front seat.

また、第３の発明に係る車両用バッテリパックによれば、第１または第２の発明に係る車両用バッテリパックにおいて、電気要素部品は、その高さがバッテリの高さの３／４以下となるように設計されているので、配管を通すための空間、又は前席の乗員の足下の空間を十分に確保することができる。   According to the vehicle battery pack according to the third invention, in the vehicle battery pack according to the first or second invention, the electrical element component has a height of 3/4 or less of the height of the battery. Therefore, it is possible to sufficiently secure a space for passing the piping or a space under the feet of the front seat occupant.

本発明の実施例１に係る車両用バッテリパックを示す斜視図である。It is a perspective view which shows the battery pack for vehicles which concerns on Example 1 of this invention. 図１のＩＩ−ＩＩ断面図である。It is II-II sectional drawing of FIG. 本発明の実施例１に係る車両用バッテリパックの車両への搭載例を示す説明図である。It is explanatory drawing which shows the example of mounting to the vehicle the battery pack for vehicles which concerns on Example 1 of this invention.

以下、図面を参照しつつ本発明に係る車両用バッテリパックの実施例を詳細に説明する。   Hereinafter, embodiments of a vehicle battery pack according to the present invention will be described in detail with reference to the drawings.

図１乃至図３を用いて本発明の一実施例に係る車両用バッテリパックについて説明する。
本実施例に係る車両用バッテリパックは、例えば、電気自動車に搭載され、電気自動車の走行用モータに電力を供給するものであって、図３に示し後述するように車両フロアの下方に固定されている。 A vehicle battery pack according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3.
The vehicle battery pack according to the present embodiment is mounted on, for example, an electric vehicle and supplies electric power to a traveling motor of the electric vehicle, and is fixed below the vehicle floor as shown in FIG. 3 and described later. ing.

図１及び図２に示すように、本実施例に係る車両用バッテリパック１は、複数（本実施例では６×２列＝１２個）のバッテリモジュール１１と、電気要素部品１２とを備えている。これらバッテリモジュール１１及び電気要素部品１２は電池トレイ１３上に配置され、電池カバー１４によって覆われている。すなわち、バッテリモジュール１１と電気要素部品１２とは電池トレイ１３と電池カバー１４とから構成される容器内に収納された状態となっている。なお、ここでのバッテリモジュール１１とは、本発明で言うバッテリの一例である。   As shown in FIGS. 1 and 2, the vehicle battery pack 1 according to the present embodiment includes a plurality (6 × 2 rows = 12 in this embodiment) of battery modules 11 and electrical element parts 12. Yes. The battery module 11 and the electrical component 12 are disposed on a battery tray 13 and covered with a battery cover 14. That is, the battery module 11 and the electrical element component 12 are in a state of being housed in a container composed of the battery tray 13 and the battery cover 14. In addition, the battery module 11 here is an example of the battery said by this invention.

バッテリモジュール１１は、バッテリパック１の外部に設けられた電動機に対して電力を供給するものであり、例えば電池トレイ１３上に所定の間隔で配置されている。
電気要素部品１２は、ＰＮ線１５，１６の接続部、コンタクタ、プリチャージレジスタ、電流センサ、漏電センサ等であり、本実施例においてはバッテリモジュール１１の車両前方側に配置されている。 The battery module 11 supplies electric power to an electric motor provided outside the battery pack 1 and is arranged on the battery tray 13 at a predetermined interval, for example.
The electrical component 12 is a connection part of the PN wires 15 and 16, a contactor, a precharge resistor, a current sensor, a leakage sensor, and the like, and is disposed on the vehicle front side of the battery module 11 in this embodiment.

なお、ＰＮ線１５，１６はバッテリパック１の高電圧入出力電線であり、図示しないモータコントロールユニットや、ＤＣ−ＤＣコンバータ、充電器、急速充電口などの高電圧系要素部品に接続される。   The PN lines 15 and 16 are high-voltage input / output wires of the battery pack 1 and are connected to high-voltage system component parts such as a motor control unit (not shown), a DC-DC converter, a charger, and a quick charging port.

また、本実施例においては、バッテリパック１内に冷却風を供給する冷却ダクト（図示せず）が車両前後方向に沿って設けられているものとし、電池カバー１４には、図１に示すように冷却ダクトに対応する位置に車両前後方向にわたって上方に突出した凸部１４ａが形成されている。   In the present embodiment, a cooling duct (not shown) for supplying cooling air into the battery pack 1 is provided along the vehicle front-rear direction, and the battery cover 14 is shown in FIG. A convex portion 14a that protrudes upward in the vehicle longitudinal direction is formed at a position corresponding to the cooling duct.

ここで、本実施例に係る車両用バッテリパックにおいては、図３に示すようにバッテリパック１を前席の乗員１８の足下まで延設している。また、前述したように、電気要素部品１２を配置する領域（以下、電気要素部品エリアという）ＡEをバッテリモジュール１１を配置する領域（以下、バッテリエリアＡBという）の車両前方側としている。すなわち、バッテリモジュール１１を前席の座席１９から後席の座席２０にわたる範囲に対応する位置であるバッテリエリアＡBに集中して配置し、このバッテリエリアＡBの車両前方側であって前席の乗員１８の足下に対応する位置に電気要素部品エリアＡEを配置している。 Here, in the vehicle battery pack according to the present embodiment, the battery pack 1 is extended to the feet of the front passenger 18 as shown in FIG. Further, as described above, the region of placing the electrical component parts 12 (hereinafter, the electrical element named component areas) region a A E placing the battery module 11 (hereinafter, referred to as the battery area A B) are a front side of the vehicle. That is, arranged concentrated in the battery area A B is a position corresponding to the range over the seat 20 of the rear seat to the battery module 11 from the seat 19 of the front seat, before a vehicle front side of the battery area A B seat The electric component part area A E is arranged at a position corresponding to the foot of the passenger 18.

さらに、電気要素部品１２は、その上端の位置が、バッテリモジュール１１の上端の位置に対して低くなるように、より詳しくは、電気要素部品１２の上端の高さがバッテリモジュール１１の上端の高さに比較して３／４以下となるように電気要素部品エリアＡEに配置されている。 Furthermore, in more detail, the height of the upper end of the electric element component 12 is higher than the height of the upper end of the battery module 11 so that the position of the upper end of the electric element component 12 is lower than the position of the upper end of the battery module 11. The electric element parts area A E is arranged so as to be 3/4 or less.

また、本実施例に係る車両用バッテリパック１においては、電池カバー１４が、バッテリモジュール１１の上端の高さと電気要素部品１２の上端の高さとに沿うように、すなわち、電池カバー１４の電気要素部品１２に対向する部分（以下、電気要素部品収納部という）１４ｃの高さが、バッテリモジュール１１に対向する部分（以下、バッテリ収納部という）１４ｂの高さに比較して低くなるように、その形状を設定されている。   Further, in the vehicle battery pack 1 according to the present embodiment, the battery cover 14 is arranged so as to follow the height of the upper end of the battery module 11 and the height of the upper end of the electric element part 12, that is, the electric element of the battery cover 14. The height of the portion 14c facing the component 12 (hereinafter referred to as an electrical component component storage portion) 14c is lower than the height of the portion 14b facing the battery module 11 (hereinafter referred to as battery storage portion). Its shape is set.

以下、本実施例に係る車両用バッテリパックによる作用効果について説明する。
本実施例に係る車両用バッテリパックによれば、バッテリモジュール１１の高さに対して電気要素部品１２の高さが低くなるように構成したため、バッテリモジュール１１と電気要素部品１２との高低差により、電気要素部品１２の上部に所定の空隙を形成することができる。 Hereinafter, the effect by the vehicle battery pack which concerns on a present Example is demonstrated.
According to the vehicle battery pack of the present embodiment, since the height of the electric element component 12 is lower than the height of the battery module 11, the difference in height between the battery module 11 and the electric element component 12 is caused. A predetermined gap can be formed in the upper part of the electric element part 12.

そして、上述したように、電池カバー１４にバッテリ収納部１４ｂに比較して低く形成された電気要素部品収納部１４ｃを設け、バッテリ収納部１４ｂを前席の座席下から後席の座席下にわたる範囲に対応する位置に配置する一方、電気要素部品収納部１４ｃを前席の乗員１８の足下に対応する位置に配置するようにすれば、図３に示したように前席の乗員１８の足下においてフロアパネル１７の前席の乗員１８の足下に対応する位置１７ａを下げることができ、前席の乗員１８の足下の空間を確保することができる。   As described above, the battery cover 14 is provided with the electric element component storage portion 14c formed lower than the battery storage portion 14b, and the battery storage portion 14b extends from under the front seat to under the rear seat. 3, while the electric element component storage portion 14 c is arranged at a position corresponding to the foot of the front seat occupant 18, as shown in FIG. 3, at the foot of the front seat occupant 18. The position 17a corresponding to the foot of the passenger 18 in the front seat of the floor panel 17 can be lowered, and a space under the foot of the passenger 18 in the front seat can be secured.

これにより、車両の地上高が高くなることを抑制しつつ前席の乗員１８の足下にゆとりを持たせることができ、且つ、積載するバッテリの容量を確保することも可能となる。   As a result, it is possible to allow the feet of the passenger 18 in the front seat to relax while suppressing an increase in the ground clearance of the vehicle, and to secure the capacity of the battery to be loaded.

このように、本実施例に係る車両用バッテリパックにおいては、電気要素部品エリアＡEはその高さをバッテリモジュールエリアＡBに比較して低く設計することができるので、前席の乗員１８が足を引いた時の床面の下に配置した場合であっても、バッテリパック１及び該バッテリパック１の下部を覆うアンダーカバー（図示せず）による最低地上高を確保することができる。 Thus, in the vehicle battery pack of the present embodiment, the electric component parts area A E can be designed low compared with its height in the battery module area A B, the front seat of the occupant 18 Even when it is arranged below the floor when the foot is pulled, the minimum ground clearance can be secured by the battery pack 1 and an under cover (not shown) that covers the lower portion of the battery pack 1.

また、前輪駆動のエンジン車をベースとした電動車両（ＦＦや４ＷＤ）の場合、前方の旧エンジンルームにモータコントロールユニットが配置される場合が多いが、本実施例に係る車両用バッテリパックを前述の電動車両に適用した場合、バッテリパック１に接続されるＰＮ線１５，１６の接続部がバッテリパック１の前部に配置されることとなるため、ＰＮ線１５，１６を短くすることができ、配線上の利便性が向上するという効果も得られる。   In addition, in the case of an electric vehicle (FF or 4WD) based on a front-wheel drive engine vehicle, a motor control unit is often disposed in the old engine room in front, but the vehicle battery pack according to this embodiment is described above. When this is applied to the electric vehicle, the connection part of the PN lines 15 and 16 connected to the battery pack 1 is arranged in the front part of the battery pack 1, so that the PN lines 15 and 16 can be shortened. In addition, an effect of improving convenience on wiring can be obtained.

なお、本実施例においては電気要素部品１２の上部に形成された空隙を前席の乗員１８の足下の空間を確保するために用いる例を示したが、該空隙は上述した例に限定されるものではなく、例えば、電気要素部品収納部１４ｃの高さと、バッテリ収納部１４ｂの高さとを同一とし、電気要素部品１２の上部に形成された空隙を、車両前部に搭載されるラジエータ等の装置につなぐ配管を通すために用いることも可能である。   In the present embodiment, the example in which the gap formed in the upper part of the electrical component 12 is used to secure the space under the feet of the front passenger 18 is shown, but the gap is limited to the above-described example. For example, the height of the electric element component storage portion 14c and the height of the battery storage portion 14b are the same, and the gap formed in the upper portion of the electric element component 12 is replaced with a radiator mounted on the front portion of the vehicle. It can also be used to pass piping that connects to the device.

また、本実施例においては電池トレイ１３と電池カバー１４とから構成された容器内にバッテリモジュール１１と電気要素部品１２とが収納された例を示したが、該容器は上述した例に限定されるものではなく、少なくとも電気要素部品１２を収納する容器であれば良い。例えば、電気要素部品１２のみを収納する容器であっても良い。   In the present embodiment, an example in which the battery module 11 and the electric element part 12 are housed in a container composed of the battery tray 13 and the battery cover 14 is shown. However, the container is limited to the above-described example. It is not a thing and what is necessary is just a container which accommodates the electrical component 12 at least. For example, the container which stores only the electric element component 12 may be sufficient.

また、本実施例においてはバッテリモジュール１１が配置されるバッテリエリアＡBとして、前席の座席１９から後席の座席２０にわたる範囲を一例として示したが、バッテリモジュール１１を配置する範囲は上述した範囲に限定されるものではなく、例えば前席の座席下のみに配置するなど、必要に応じ、本発明の趣旨を逸脱しない範囲で種々の変更が可能であることは言うまでもない。 Further, as the battery area A B of the battery module 11 is disposed in this embodiment, although the range extending seat 20 of the rear seat as an example from the seat 19 of the front seat, the range of placing the battery module 11 is described above It goes without saying that the present invention is not limited to the range, and various modifications can be made without departing from the spirit of the present invention as necessary, for example, it is arranged only under the front seat.

本発明は、車両用バッテリパックに適用して好適なものである。   The present invention is suitable for application to a vehicle battery pack.

１ 車両用バッテリパック
１１ バッテリモジュール
１２ 電気要素部品
１３ 電池トレイ
１４ 電池カバー
１４ａ 凸部
１４ｂ バッテリ収納部
１４ｃ 電気要素部品収納部
１５ Ｐ線
１６ Ｎ線
１７ フロアパネル
１８ 前席の乗員
１９ 前席の座席
２０ 後席の座席
ＡB バッテリエリア
ＡE 電気要素部品エリア DESCRIPTION OF SYMBOLS 1 Vehicle battery pack 11 Battery module 12 Electric component part 13 Battery tray 14 Battery cover 14a Convex part 14b Battery accommodating part 14c Electric element component accommodating part 15 P line 16 N line 17 Floor panel 18 Front seat occupant 19 Front seat 20 Rear seat A B Battery area A E Electrical component parts area

Claims (3)

複数のバッテリと、前記バッテリの制御に用いられる電気要素部品と、少なくとも前記電気要素部品を収納する容器とを有する車両用バッテリパックにおいて、
前記電気要素部品は、前記バッテリの車両前方側かつ前席の乗員の足下に対応する位置に配置され、前記容器の上面は、前記電気要素部品に対応する部分が、前記バッテリの上面に比較して低くなるように形成される
ことを特徴とする車両用バッテリパック。 In a vehicle battery pack having a plurality of batteries, an electric element part used for controlling the battery, and a container for storing at least the electric element part,
The electrical element component is disposed at a position corresponding to the front side of the battery and the feet of the front seat occupant, and the upper surface of the container has a portion corresponding to the electrical element component compared to the upper surface of the battery. The battery pack for vehicles is formed so that it may become low. 前記バッテリが前記前席の座席下に配置され、
前記車両用バッテリパックの上部に設けられるフロアパネルは、前記車両用バッテリパックの形状に沿って、前記前席の乗員の足下に対応する位置が、前記前席の座席下に対応する位置に比較して低くなっている
ことを特徴とする請求項１記載の車両用バッテリパック。 The battery is disposed under the front seat;
The floor panel provided on the upper part of the vehicle battery pack is compared with the position corresponding to the foot of the front seat occupant along the shape of the battery pack for the vehicle. The vehicle battery pack according to claim 1, wherein the battery pack is low. 前記電気要素部品は、その高さが前記バッテリの高さの３／４以下となるように設計されている
ことを特徴とする請求項１又は請求項２記載の車両用バッテリパック。 3. The vehicle battery pack according to claim 1, wherein the electrical element component is designed so that a height thereof is 3/4 or less of a height of the battery. 4.
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CN114865726B (en) * 2022-03-22 2023-09-01 上海领帆微电子有限公司 Battery pack control method, battery management system and BMS chip

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