JP2022082354A - Vehicular battery pack - Google Patents

Vehicular battery pack Download PDF

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JP2022082354A
JP2022082354A JP2020193851A JP2020193851A JP2022082354A JP 2022082354 A JP2022082354 A JP 2022082354A JP 2020193851 A JP2020193851 A JP 2020193851A JP 2020193851 A JP2020193851 A JP 2020193851A JP 2022082354 A JP2022082354 A JP 2022082354A
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battery
supply
discharge
piping
pipe
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JP7317789B2 (en
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修宏 熊谷
Naohiro Kumagai
洋介 山岸
Yosuke Yamagishi
学 松本
Manabu Matsumoto
聡子 伊藤
Satoko Ito
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Honda Motor Co Ltd
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    • 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

Abstract

To provide a vehicular battery pack capable of protecting supply piping and discharge piping from impact upon a side collision.SOLUTION: A battery pack 60 includes: a battery cooling part 63 arranged under a battery module 61; supply piping 65; discharge piping 66; and a battery case 62 for accommodating these. The supply piping 65 and the discharge piping 66 include: a front supply piping part 651 and a front discharge piping part 661 which are arranged between a front wall 82 of the battery case 62 and the battery module 61; and side supply piping parts 652L, 652R and side discharge piping parts 662L, 662R which are arranged between side walls 84, 85 of the battery case 62 and the battery module 61. The side supply piping parts 652L, 652R and the side discharge piping parts 662L, 662R are arranged at positions different from each other in a vertical direction.SELECTED DRAWING: Figure 3

Description

本発明は、電動車両などに搭載される車両用バッテリパックに関する。 The present invention relates to a vehicle battery pack mounted on an electric vehicle or the like.

特許文献1には、ケースの内部に複数のバッテリモジュールを収容し、ケースの下方に冷却モジュールを配置した電池パックが記載されている。この冷却モジュールは、冷媒流路の中心を通る平面で分割された同じ形状の2つのプレートを向い合せに接合して構成されることが記載されている。 Patent Document 1 describes a battery pack in which a plurality of battery modules are housed inside a case and a cooling module is arranged below the case. It is described that the cooling module is configured by joining two plates of the same shape, which are divided by a plane passing through the center of the refrigerant flow path, facing each other.

特許第6064730号公報Japanese Patent No. 6064730

しかしながら、特許文献1に記載の電池パックでは、冷却モジュールが大型化してしまう。そのため、一般的には、ケースの内部に供給配管及び排出配管を設置して、これらをバッテリ冷却部に接続している。このような電池パックでは、車両の衝突時など電池パックに比較的大きな衝撃が入力された場合であっても、供給配管及び排出配管を保護する必要がある。特に、供給配管及び排出配管が車幅方向で外側に配置される場合、車両の側突時に比較的大きな衝撃が入力される場合がある。 However, in the battery pack described in Patent Document 1, the cooling module becomes large. Therefore, in general, a supply pipe and a discharge pipe are installed inside the case, and these are connected to the battery cooling unit. With such a battery pack, it is necessary to protect the supply pipe and the discharge pipe even when a relatively large impact is input to the battery pack such as when a vehicle collides. In particular, when the supply pipe and the discharge pipe are arranged outside in the vehicle width direction, a relatively large impact may be input at the time of a side collision of the vehicle.

本発明は、側突時における衝撃から供給配管及び排出配管を保護することができる車両用バッテリパックを提供する。 The present invention provides a vehicle battery pack capable of protecting the supply pipe and the discharge pipe from an impact at the time of a side collision.

本発明は、
複数のバッテリモジュールと、
前記複数のバッテリモジュールの下方に配置され、内部に冷媒が通る冷媒通路を有するバッテリ冷却部と、
前記複数のバッテリモジュール及び前記バッテリ冷却部を収容するバッテリケースと、
前記バッテリケースに収容され、前記バッテリケースの外部から前記バッテリ冷却部へ冷媒を導入する供給配管と、
前記バッテリケースに収容され、前記バッテリ冷却部から前記バッテリケースの外部へ前記冷媒を排出する排出配管と、備える車両用バッテリパックであって、
前記供給配管と前記バッテリ冷却部とを連結する供給側連結部、及び前記排出配管と前記バッテリ冷却部とを連結する排出側連結部は、車幅方向において、前記複数のバッテリモジュールの外側に配置され、
前記供給配管及び前記排出配管は、
前記バッテリケースの前壁と前記複数のバッテリモジュールとの間に配置された前部配管部と、
前記バッテリケースの側壁と前記複数のバッテリモジュールとの間に配置された側部配管部と、を備え、
前記側部配管部は、前記供給配管及び前記排出配管が上下方向で異なる位置に配置され、水平方向から見て互いに重ならない。
The present invention
With multiple battery modules
A battery cooling unit, which is arranged below the plurality of battery modules and has a refrigerant passage through which the refrigerant passes,
A battery case accommodating the plurality of battery modules and the battery cooling unit,
A supply pipe housed in the battery case and introducing a refrigerant from the outside of the battery case to the battery cooling unit.
A vehicle battery pack including a discharge pipe housed in the battery case and discharging the refrigerant from the battery cooling unit to the outside of the battery case.
The supply-side connecting portion connecting the supply pipe and the battery cooling unit and the discharging-side connecting portion connecting the discharging pipe and the battery cooling unit are arranged outside the plurality of battery modules in the vehicle width direction. Being done
The supply pipe and the discharge pipe
A front piping portion arranged between the front wall of the battery case and the plurality of battery modules, and
A side piping portion arranged between the side wall of the battery case and the plurality of battery modules is provided.
In the side piping portion, the supply pipe and the discharge pipe are arranged at different positions in the vertical direction and do not overlap each other when viewed from the horizontal direction.

本発明によれば、側突時における衝撃から供給配管及び排出配管を保護することができる。 According to the present invention, the supply pipe and the discharge pipe can be protected from the impact at the time of a side collision.

バッテリパック60が搭載された車両1の全体構造を示す概略側面図である。It is a schematic side view which shows the whole structure of the vehicle 1 on which the battery pack 60 is mounted. 車両1の床下を示す平面図である。It is a top view which shows the underfloor of a vehicle 1. バッテリパック60の内部を示す平面図である。It is a top view which shows the inside of the battery pack 60. バッテリパック60の前部の斜視図である。It is a perspective view of the front part of a battery pack 60. 供給配管65及び排出配管66とバッテリ冷却部63との接続を説明するため、バッテリパック60の一部を斜め上方から見た斜視図である。In order to explain the connection between the supply pipe 65 and the discharge pipe 66 and the battery cooling unit 63, it is a perspective view of a part of the battery pack 60 viewed from diagonally above. 図5のA-A断面図である。FIG. 5 is a sectional view taken along the line AA of FIG. バッテリパック60の供給配管65及び排出配管66を示す斜視図である。It is a perspective view which shows the supply pipe 65 and the discharge pipe 66 of a battery pack 60.

以下、本発明の車両用バッテリパックの一実施形態を図面に基づいて説明する。なお、図面は符号の向きに見るものとし、以下の説明において、前後、左右、上下は、車両の操縦者から見た方向に従い記載し、また、図面に車両の前方をFr、後方をRr、左側をL、右側をR、上方をU、下方をD、として示す。 Hereinafter, an embodiment of the vehicle battery pack of the present invention will be described with reference to the drawings. In the following description, the drawings shall be viewed in the direction of the reference numerals, and the front / rear, left / right, and up / down shall be described according to the direction seen from the driver of the vehicle. The left side is L, the right side is R, the upper side is U, and the lower side is D.

[車両]
図1及び図2に示すように、本発明の一実施形態の車両1は、フロアパネル2とダッシュパネル3とにより車室10とその前方のフロントルーム20とに区画形成されている。車室10には、前部座席11及び後部座席12が設けられている。後部座席12の後方におけるフロアパネル2の下方には、駆動装置ユニット30が設けられている。駆動装置ユニット30は、左右の後輪5を駆動する。つまり、この車両1は、左右の後輪5を駆動輪とし、左右の前輪4を従動輪としている。
[vehicle]
As shown in FIGS. 1 and 2, the vehicle 1 according to the embodiment of the present invention is partitioned by a floor panel 2 and a dash panel 3 into a vehicle compartment 10 and a front room 20 in front of the floor panel 2. The passenger compartment 10 is provided with a front seat 11 and a rear seat 12. A drive unit 30 is provided below the floor panel 2 behind the rear seat 12. The drive unit 30 drives the left and right rear wheels 5. That is, in this vehicle 1, the left and right rear wheels 5 are used as driving wheels, and the left and right front wheels 4 are used as driven wheels.

車室10の下方には、バッテリパック60が配置されている。バッテリパック60は、複数のバッテリモジュール61がバッテリケース62に収容され、車室10におけるフロアパネル2の下方に配置されている。 A battery pack 60 is arranged below the vehicle interior 10. In the battery pack 60, a plurality of battery modules 61 are housed in the battery case 62 and arranged below the floor panel 2 in the vehicle interior 10.

駆動装置ユニット30は、図示は省略するが、電動機としてのモータを収容する駆動装置と、モータを制御する電動機制御装置としてのPCU(Power Control Unit)と、を備える。駆動装置とPCUとは、バスバーを介して電気的に接続されている。 Although not shown, the drive unit 30 includes a drive device for accommodating a motor as an electric motor and a PCU (Power Control Unit) as an electric motor control device for controlling the motor. The drive device and the PCU are electrically connected to each other via a bus bar.

フロントルーム20には、バッテリパック60などを冷却する冷却装置70が設けられている。冷却装置70は、車両1の最前面に設けられたラジエータを備える。冷却装置70とバッテリパック60とは、外側供給配管71及び外側排出配管72を介して接続されている。なお、外側供給配管71又は外側排出配管72には、不図示の電動ポンプが設けられる。 The front room 20 is provided with a cooling device 70 for cooling the battery pack 60 and the like. The cooling device 70 includes a radiator provided on the front surface of the vehicle 1. The cooling device 70 and the battery pack 60 are connected via an outer supply pipe 71 and an outer discharge pipe 72. An electric pump (not shown) is provided in the outer supply pipe 71 or the outer discharge pipe 72.

[バッテリパック]
つぎに、バッテリパック60及びその冷却構造について、図3~図7を参照して説明する。
[Battery pack]
Next, the battery pack 60 and its cooling structure will be described with reference to FIGS. 3 to 7.

図3に示すように、バッテリパック60は、複数のバッテリモジュール61と、バッテリモジュール61を冷却するバッテリ冷却部63と、バッテリケース62の外部からバッテリ冷却部63へ冷媒を導入する供給配管65と、バッテリ冷却部63からバッテリケース62の外部へ冷媒を排出する排出配管66と、バッテリモジュール61、バッテリ冷却部63、供給配管65及び排出配管66を収容するバッテリケース62と、を備える。 As shown in FIG. 3, the battery pack 60 includes a plurality of battery modules 61, a battery cooling unit 63 for cooling the battery module 61, and a supply pipe 65 for introducing a refrigerant from the outside of the battery case 62 to the battery cooling unit 63. A discharge pipe 66 for discharging the refrigerant from the battery cooling unit 63 to the outside of the battery case 62, and a battery case 62 for accommodating the battery module 61, the battery cooling unit 63, the supply pipe 65, and the discharge pipe 66 are provided.

複数のバッテリモジュール61は、バッテリケース62内に、前後方向及び左右方向に並べて配置されている。本実施形態のバッテリパック60は、前後方向に6つ、左右方向に2つ並べられた12個のバッテリモジュール61と、その後方でかつ左右方向中央部に配置された1個のバッテリモジュール61と、を備える。以下の説明では、左側に位置する6個のバッテリモジュール61をそれぞれ左バッテリモジュール61L、右側に位置する6個のバッテリモジュール61をそれぞれ右バッテリモジュール61R、その後方の1個のバッテリモジュール61を後バッテリモジュール61Rrと呼ぶことがある。 The plurality of battery modules 61 are arranged side by side in the battery case 62 in the front-rear direction and the left-right direction. The battery pack 60 of the present embodiment includes twelve battery modules 61 arranged six in the front-rear direction and two in the left-right direction, and one battery module 61 arranged behind the battery modules 61 in the center in the left-right direction. , Equipped with. In the following description, the six battery modules 61 located on the left side are the left battery module 61L, the six battery modules 61 located on the right side are the right battery module 61R, and the one battery module 61 behind them is rear. It may be called a battery module 61Rr.

バッテリケース62は、バッテリモジュール61、バッテリ冷却部63、供給配管65及び排出配管66を収容するケース本体80と、ケース本体80の上部開口を覆うケース蓋部88(図1参照)と、を備える。 The battery case 62 includes a case body 80 that houses the battery module 61, the battery cooling unit 63, the supply pipe 65, and the discharge pipe 66, and a case lid 88 (see FIG. 1) that covers the upper opening of the case body 80. ..

ケース本体80は、底部81と、底部81の前端部から立ち上がる前壁82と、底部81の後端部から立ち上がる後壁83と、底部81の左端部から立ち上がる左側壁84と、底部81の右端部から立ち上がる右側壁85と、を備える。 The case body 80 includes a bottom 81, a front wall 82 rising from the front end of the bottom 81, a rear wall 83 rising from the rear end of the bottom 81, a left wall 84 rising from the left end of the bottom 81, and the right end of the bottom 81. It is equipped with a right wall 85 that rises from the section.

前壁82の右端部には、外側供給配管71と供給配管65とを接続するための供給側ケース接続部86が設けられ、前壁82の左端部には、外側排出配管72と排出配管66とを接続するための排出側ケース接続部87が設けられる。供給側ケース接続部86は、外側供給配管71が接続される1つの外側供給接続部861と、供給配管65が接続される左右2つの内側供給接続部862L、862Rと、を備え、排出側ケース接続部87は、外側排出配管72が接続される1つの外側排出接続部871と、排出配管66が接続される左右2つの内側排出接続部872L、872Rと、を備える。 A supply side case connecting portion 86 for connecting the outer supply pipe 71 and the supply pipe 65 is provided at the right end portion of the front wall 82, and the outer discharge pipe 72 and the discharge pipe 66 are provided at the left end portion of the front wall 82. A discharge side case connection portion 87 for connecting to and is provided. The supply side case connection portion 86 includes one outer supply connection portion 861 to which the outer supply pipe 71 is connected, and two left and right inner supply connection portions 862L and 862R to which the supply pipe 65 is connected, and is provided with a discharge side case. The connection portion 87 includes one outer discharge connection portion 871 to which the outer discharge pipe 72 is connected, and two left and right inner discharge connection portions 872L and 872R to which the discharge pipe 66 is connected.

1つの外側供給接続部861及び2つの内側供給接続部862L、862Rは、互いに連通しており、外側供給配管71から1つの外側供給接続部861に流入する冷媒を分岐させて2つの内側供給接続部862L、862Rから供給配管65に流出させる。また、1つの外側排出接続部871及び2つの内側排出接続部872L、872Rは、互いに連通しており、排出配管66から2つの内側排出接続部872L、872Rに流入する冷媒を合流させて1つの外側排出接続部871から外側排出配管72に流出させる。 One outer supply connection portion 861 and two inner supply connection portions 862L and 862R communicate with each other, and the refrigerant flowing into one outer supply connection portion 861 is branched from the outer supply pipe 71 to two inner supply connections. It flows out from the portions 862L and 862R to the supply pipe 65. Further, one outer discharge connection portion 871 and two inner discharge connection portions 872L and 872R communicate with each other, and the refrigerant flowing into the two inner discharge connection portions 872L and 872R from the discharge pipe 66 is combined into one. It flows out from the outer discharge connection portion 871 to the outer discharge pipe 72.

バッテリ冷却部63は、各バッテリモジュール61の下方に配置され、内部に冷媒が通る冷媒通路(図示せず)を有する。本実施形態のバッテリパック60では、1個のバッテリ冷却部63がそれぞれ1個のバッテリモジュール61を冷却するので、全部で13個のバッテリ冷却部63が設けられる。 The battery cooling unit 63 is arranged below each battery module 61 and has a refrigerant passage (not shown) through which the refrigerant passes. In the battery pack 60 of the present embodiment, one battery cooling unit 63 cools one battery module 61 each, so that a total of 13 battery cooling units 63 are provided.

バッテリ冷却部63は、バッテリモジュール61の下方に配置される冷却部本体631と、冷媒通路の一端側に設けられ、供給配管65に接続される供給口632と、冷媒通路の他端側に設けられ、排出配管66に接続される排出口633と、を備える。供給口632及び排出口633は、左右方向において、バッテリモジュール61の外側に配置される。具体的に説明すると、供給口632及び排出口633は、平面視において、バッテリケース62の左側壁84と左バッテリモジュール61Lとの間、及びバッテリケース62の右側壁85と右バッテリモジュール61Rとの間に前後に並ぶように配置される。そして、供給配管65から供給口632に冷媒を供給すると、供給された冷媒は、冷却部本体631の内部に形成される冷媒通路を通った後、排出口633から排出配管66に排出される。 The battery cooling unit 63 is provided on the cooling unit main body 631 arranged below the battery module 61, the supply port 632 provided on one end side of the refrigerant passage and connected to the supply pipe 65, and the other end side of the refrigerant passage. It is provided with a discharge port 633 which is connected to the discharge pipe 66. The supply port 632 and the discharge port 633 are arranged outside the battery module 61 in the left-right direction. Specifically, the supply port 632 and the discharge port 633 are located between the left side wall 84 of the battery case 62 and the left battery module 61L, and between the right side wall 85 of the battery case 62 and the right battery module 61R in a plan view. Arranged so that they are lined up in front of and behind each other. Then, when the refrigerant is supplied from the supply pipe 65 to the supply port 632, the supplied refrigerant passes through the refrigerant passage formed inside the cooling unit main body 631 and then is discharged from the discharge port 633 to the discharge pipe 66.

図3~図7に示すように、供給配管65は、バッテリケース62の前壁82と複数のバッテリモジュール61との間に配置された前部供給配管部651と、バッテリケース62の左側壁84と複数の左バッテリモジュール61Lとの間に配置された左側部供給配管部652Lと、バッテリケース62の右側壁85と複数の右バッテリモジュール61R及び後バッテリモジュール61Rrとの間に配置された右側部供給配管部652Rと、を備える。 As shown in FIGS. 3 to 7, the supply pipe 65 includes a front supply pipe portion 651 arranged between the front wall 82 of the battery case 62 and the plurality of battery modules 61, and the left side wall 84 of the battery case 62. The left side supply pipe portion 652L arranged between the left battery module 61L and the right side portion 85 arranged between the right side wall 85 of the battery case 62 and the plurality of right battery modules 61R and the rear battery module 61Rr. It is provided with a supply piping unit 652R.

排出配管66は、バッテリケース62の前壁82と複数のバッテリモジュール61との間に配置された前部排出配管部661と、バッテリケース62の左側壁84と複数の左バッテリモジュール61Lとの間に配置された左側部排出配管部662Lと、バッテリケース62の右側壁85と複数の右バッテリモジュール61R及び後バッテリモジュール61Rrとの間に配置された右側部排出配管部662Rと、を備える。 The discharge pipe 66 is between the front discharge pipe portion 661 arranged between the front wall 82 of the battery case 62 and the plurality of battery modules 61, and the left side wall 84 of the battery case 62 and the plurality of left battery modules 61L. The left side discharge pipe portion 662L arranged in the above, and the right side discharge pipe portion 662R arranged between the right side wall 85 of the battery case 62 and the plurality of right battery modules 61R and the rear battery module 61Rr are provided.

このような配管構成によれば、供給配管65及び排出配管66は、バッテリケース62の前壁82と複数のバッテリモジュール61との間、且つ、バッテリケース62の側壁84、85と複数のバッテリモジュール61との間に配置されるので、供給配管65及び排出配管66が複数のバッテリモジュール61間に配置される場合に比べて、レイアウト性がよく作業性を向上させることができる。 According to such a piping configuration, the supply pipe 65 and the discharge pipe 66 are provided between the front wall 82 of the battery case 62 and the plurality of battery modules 61, and the side walls 84 and 85 of the battery case 62 and the plurality of battery modules. Since it is arranged between the supply pipe 65 and the discharge pipe 66, the layout is good and the workability can be improved as compared with the case where the supply pipe 65 and the discharge pipe 66 are arranged between the plurality of battery modules 61.

図4に示すように、前部供給配管部651の右端部は、供給側ケース接続部86の左側の内側供給接続部862Lに接続され、前部供給配管部651の左端部は、左側部供給配管部652Lの前端部652Lfと接続され、右側部供給配管部652Rの前端部652Rfは、供給側ケース接続部86の右側の内側供給接続部862Rに接続される。また、前部排出配管部661の左端部は、排出側ケース接続部87の右側の内側排出接続部872Rに接続され、前部排出配管部661の右端部は、右側部排出配管部662Rの前端部662Rfと接続され、左側部排出配管部662Lの前端部662Lfは、排出側ケース接続部87の左側の内側排出接続部872Lに接続される。 As shown in FIG. 4, the right end of the front supply piping section 651 is connected to the inner supply connecting section 862L on the left side of the supply side case connecting section 86, and the left end portion of the front supply piping section 651 is supplied on the left side. It is connected to the front end portion 652Lf of the piping portion 652L, and the front end portion 652Rf of the right side supply piping portion 652R is connected to the inner supply connection portion 862R on the right side of the supply side case connection portion 86. Further, the left end portion of the front discharge pipe portion 661 is connected to the inner discharge connection portion 872R on the right side of the discharge side case connection portion 87, and the right end portion of the front discharge pipe portion 661 is the front end of the right side discharge pipe portion 662R. It is connected to the portion 662Rf, and the front end portion 662Lf of the left side discharge piping portion 662L is connected to the inner discharge connection portion 872L on the left side of the discharge side case connection portion 87.

図4及び図7に示すように、前部供給配管部651と前部排出配管部661は同一形状を有する。具体的に説明すると、前部供給配管部651及び前部排出配管部661は、左右方向における中央部に傾斜部又は湾曲部を有する共通の管部材を用いて構成されており、この管部材を傾斜部又は湾曲部が前後方向から見てX状に交差するように上下反転させて配置している。このような前部供給配管部651及び前部排出配管部661によれば、部品の共通化によって部品の種類を削減できる。 As shown in FIGS. 4 and 7, the front supply piping section 651 and the front discharge piping section 661 have the same shape. Specifically, the front supply piping section 651 and the front discharge piping section 661 are configured by using a common pipe member having an inclined portion or a curved portion at the central portion in the left-right direction. The inclined portion or the curved portion is arranged upside down so as to intersect in an X shape when viewed from the front-rear direction. According to the front supply piping section 651 and the front discharge piping section 661, the types of parts can be reduced by standardizing the parts.

図6及び図7に示すように、左側部供給配管部652Lと左側部排出配管部662Lは、バッテリケース62の左側壁84と複数の左バッテリモジュール61Lとの間において、水平方向から見て互いに重ならないように、上下方向で異なる位置に配置される。本実施形態では、左側部供給配管部652Lが、左側部排出配管部662Lよりも上方に配置される。 As shown in FIGS. 6 and 7, the left side supply piping section 652L and the left side discharge piping section 662L are located between the left side wall 84 of the battery case 62 and the plurality of left battery modules 61L, respectively, when viewed from the horizontal direction. They are placed in different positions in the vertical direction so that they do not overlap. In the present embodiment, the left side supply pipe portion 652L is arranged above the left side discharge pipe portion 662L.

また、右側部供給配管部652Rと右側部排出配管部662Rは、バッテリケース62の右側壁85と複数の右バッテリモジュール61Rとの間において、水平方向から見て互いに重ならないように、上下方向で異なる位置に配置される。本実施形態では、右側部供給配管部652Rが、右側部排出配管部662Rよりも上方配置される。このような配置構成によれば、車両1の側突時に供給配管65の側部供給配管部652L、652Rと排出配管66の側部排出配管部662L、662Rとが接触することを抑制できる。 Further, the right side supply piping section 652R and the right side discharge piping section 662R are vertically arranged so as not to overlap each other when viewed from the horizontal direction between the right side wall 85 of the battery case 62 and the plurality of right battery modules 61R. Placed in different positions. In the present embodiment, the right side supply pipe portion 652R is arranged above the right side discharge pipe portion 662R. According to such an arrangement configuration, it is possible to prevent the side supply pipes 652L and 652R of the supply pipe 65 from coming into contact with the side discharge pipes 662L and 662R of the discharge pipe 66 when the vehicle 1 collides sideways.

図3及び図6に示すように、左側部供給配管部652Lと左側部排出配管部662Lは、バッテリケース62の左側壁84と複数の左バッテリモジュール61Lとの間において、上下方向から見て互いに重ならないように、車幅方向で異なる位置に配置される。本実施形態では、左側部供給配管部652Lが、左側部排出配管部662Lよりも内側(右側)に配置される。 As shown in FIGS. 3 and 6, the left side supply piping section 652L and the left side discharge piping section 662L are located between the left side wall 84 of the battery case 62 and the plurality of left battery modules 61L, respectively, when viewed from the vertical direction. They are placed at different positions in the vehicle width direction so that they do not overlap. In the present embodiment, the left side supply pipe portion 652L is arranged inside (right side) of the left side discharge pipe portion 662L.

また、右側部供給配管部652Rと右側部排出配管部662Rは、バッテリケース62の右側壁85と複数の右バッテリモジュール61Rとの間において、上下方向から見て互いに重ならないように、車幅方向で異なる位置に配置される。本実施形態では、右側部供給配管部652Rが、右側部排出配管部662Rよりも内側(左側)に配置される。このような配置構成によれば、組付け時、メンテナンス時に上方から両配管を視認することができ、作業性が向上する。 Further, the right side supply piping section 652R and the right side discharge piping section 662R are located in the vehicle width direction so as not to overlap each other when viewed from the vertical direction between the right side wall 85 of the battery case 62 and the plurality of right battery modules 61R. Will be placed in different positions. In the present embodiment, the right side supply pipe portion 652R is arranged inside (left side) of the right side discharge pipe portion 662R. According to such an arrangement configuration, both pipes can be visually recognized from above during assembly and maintenance, and workability is improved.

図5~図7に示すように、供給配管65の側部供給配管部652L、652Rは、複数の供給側連結部67を介して複数のバッテリ冷却部63の供給口632に接続され、排出配管66の側部排出配管部662L、662Rは、複数の排出側連結部68を介して複数のバッテリ冷却部63の排出口633に接続される。供給側連結部67及び排出側連結部68は、それぞれ蛇腹形状を有する配管部材である。供給側連結部67及び排出側連結部68が蛇腹形状を有するため容易に屈曲させることができ、これにより寸法誤差を吸収できるだけでなく、配管接続時の作業性を向上させることができる。 As shown in FIGS. 5 to 7, the side supply pipe portions 652L and 652R of the supply pipe 65 are connected to the supply ports 632 of the plurality of battery cooling units 63 via the plurality of supply side connecting portions 67, and are connected to the discharge pipes. The side discharge piping portions 662L and 662R of 66 are connected to the discharge ports 633 of the plurality of battery cooling units 63 via the plurality of discharge side connecting portions 68. The supply-side connecting portion 67 and the discharging-side connecting portion 68 are piping members having a bellows shape, respectively. Since the supply side connecting portion 67 and the discharging side connecting portion 68 have a bellows shape, they can be easily bent, which not only absorbs dimensional errors but also improves workability when connecting pipes.

また、図5に示すように、側部供給配管部652L、652Rと供給側連結部67とを接続する第1供給側接続部671と、供給側連結部67とバッテリ冷却部63の供給口632とを接続する第2供給側接続部672とは、前後方向においてずれて配置されている。また、側部排出配管部662L、662Rと排出側連結部68とを接続する第1排出側接続部681と、排出側連結部68とバッテリ冷却部63の排出口633とを接続する第2排出側接続部682とは、前後方向においてずれて配置されている。このようにすると、供給側連結部67及び排出側連結部68の長さを確保することができるので、蛇腹部の設定や応力の緩和が可能となる。 Further, as shown in FIG. 5, the first supply side connection portion 671 connecting the side supply piping portions 652L and 652R and the supply side connection portion 67, and the supply port 632 of the supply side connection portion 67 and the battery cooling portion 63. The second supply-side connection portion 672 that connects to and the second supply-side connection portion 672 are arranged so as to be offset from each other in the front-rear direction. Further, a first discharge side connection portion 681 connecting the side discharge piping portions 662L and 662R and the discharge side connection portion 68, and a second discharge connecting the discharge side connection portion 68 and the discharge port 633 of the battery cooling unit 63 are connected. The side connection portion 682 is displaced from the side connection portion 682 in the front-rear direction. By doing so, the lengths of the supply-side connecting portion 67 and the discharging-side connecting portion 68 can be secured, so that the bellows portion can be set and the stress can be relaxed.

以上、図面を参照しながら各種の実施の形態について説明したが、本発明はかかる例に限定されないことは言うまでもない。当業者であれば、特許請求の範囲に記載された範疇内において、各種の変更例又は修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。また、発明の趣旨を逸脱しない範囲において、上記実施の形態における各構成要素を任意に組み合わせてもよい。 Although various embodiments have been described above with reference to the drawings, it goes without saying that the present invention is not limited to such examples. It is clear that a person skilled in the art can come up with various modifications or modifications within the scope of the claims, which naturally belong to the technical scope of the present invention. Understood. Further, each component in the above-described embodiment may be arbitrarily combined as long as the gist of the invention is not deviated.

例えば、供給配管65と排出配管66との車幅方向の位置関係や上下方向の位置関係は任意に入れ替えることができる。 For example, the positional relationship between the supply pipe 65 and the discharge pipe 66 in the vehicle width direction and the positional relationship in the vertical direction can be arbitrarily replaced.

本明細書には少なくとも以下の事項が記載されている。なお、括弧内には、上記した実施形態において対応する構成要素等を示しているが、これに限定されるものではない。 At least the following items are described in the present specification. The components and the like corresponding to the above-described embodiments are shown in parentheses, but the present invention is not limited thereto.

(1) 複数のバッテリモジュール(バッテリモジュール61)と、
前記複数のバッテリモジュールの下方に配置され、内部に冷媒が通る冷媒通路を有するバッテリ冷却部(バッテリ冷却部63)と、
前記複数のバッテリモジュール及び前記バッテリ冷却部を収容するバッテリケース(バッテリケース62)と、
前記バッテリケースに収容され、前記バッテリケースの外部から前記バッテリ冷却部へ冷媒を導入する供給配管(供給配管65)と、
前記バッテリケースに収容され、前記バッテリ冷却部から前記バッテリケースの外部へ前記冷媒を排出する排出配管(排出配管66)と、備える車両用バッテリパック(バッテリパック60)であって、
前記供給配管と前記バッテリ冷却部とを連結する供給側連結部(供給側連結部67)、及び前記排出配管と前記バッテリ冷却部とを連結する排出側連結部(排出側連結部68)は、車幅方向において、前記複数のバッテリモジュールの外側に配置され、
前記供給配管及び前記排出配管は、
前記バッテリケースの前壁(前壁82)と前記複数のバッテリモジュールとの間に配置された前部配管部(前部供給配管部651、前部排出配管部661)と、
前記バッテリケースの側壁(左側壁84、右側壁85)と前記複数のバッテリモジュールとの間に配置された側部配管部(側部供給配管部652L、652R、側部排出配管部662L、662R)と、を備え、
前記側部配管部は、前記供給配管及び前記排出配管が上下方向で異なる位置に配置され、水平方向から見て互いに重ならない、車両用バッテリパック。
(1) A plurality of battery modules (battery module 61) and
A battery cooling unit (battery cooling unit 63) arranged below the plurality of battery modules and having a refrigerant passage through which the refrigerant passes,
A battery case (battery case 62) accommodating the plurality of battery modules and the battery cooling unit,
A supply pipe (supply pipe 65) housed in the battery case and introducing a refrigerant from the outside of the battery case to the battery cooling unit.
A discharge pipe (discharge pipe 66) housed in the battery case and discharging the refrigerant from the battery cooling unit to the outside of the battery case, and a vehicle battery pack (battery pack 60) provided.
The supply-side connecting portion (supply-side connecting portion 67) that connects the supply pipe and the battery cooling portion, and the discharging-side connecting portion (discharging-side connecting portion 68) that connects the discharging pipe and the battery cooling portion are Arranged outside the plurality of battery modules in the vehicle width direction,
The supply pipe and the discharge pipe
The front piping section (front supply piping section 651, front discharge piping section 661) arranged between the front wall (front wall 82) of the battery case and the plurality of battery modules,
Side piping sections (side supply piping sections 652L, 652R, side discharge piping sections 662L, 662R) arranged between the side walls (left side wall 84, right side wall 85) of the battery case and the plurality of battery modules. And, with
The side piping section is a vehicle battery pack in which the supply piping and the discharge piping are arranged at different positions in the vertical direction and do not overlap each other when viewed from the horizontal direction.

(1)によれば、車両の側突時に供給配管の側部配管部と排出配管の側部配管部とが接触することを抑制できる。また、供給配管及び排出配管は、バッテリケースの前壁と複数のバッテリモジュールとの間、且つ、バッテリケースの側壁と複数のバッテリモジュールとの間に配置されるので、供給配管及び排出配管が複数のバッテリモジュール間に配置される場合に比べて、レイアウト性がよく作業性が向上する。 According to (1), it is possible to prevent the side piping portion of the supply pipe and the side piping portion of the discharge pipe from coming into contact with each other at the time of a side collision of the vehicle. Further, since the supply pipe and the discharge pipe are arranged between the front wall of the battery case and the plurality of battery modules and between the side wall of the battery case and the plurality of battery modules, there are a plurality of supply pipes and the discharge pipe. Compared to the case where it is arranged between the battery modules of the above, the layout is good and the workability is improved.

(2) (1)に記載の車両用バッテリパックであって、
前記供給側連結部及び前記排出側連結部は、それぞれ蛇腹形状を有する、車両用バッテリパック。
(2) The vehicle battery pack according to (1).
The supply-side connecting portion and the discharging-side connecting portion each have a bellows shape, and are battery packs for vehicles.

(2)によれば、供給側連結部及び排出側連結部は、それぞれ蛇腹形状を有するので、寸法誤差を吸収でき、作業性が向上する。 According to (2), since the supply side connecting portion and the discharging side connecting portion each have a bellows shape, dimensional errors can be absorbed and workability is improved.

(3) (1)に記載の車両用バッテリパックであって、
前記供給配管と前記供給側連結部とを接続する第1供給側接続部(第1供給側接続部671)と、前記供給側連結部と前記バッテリ冷却部とを接続する第2供給側接続部(第2供給側接続部672)とは、前後方向においてずれて配置され、
前記排出配管と前記排出側連結部とを接続する第1排出側接続部(第1排出側接続部681)と、前記排出側連結部と前記バッテリ冷却部とを接続する第2排出側接続部(第2排出側接続部682)とは、前記前後方向においてずれて配置されている、車両用バッテリパック。
(3) The vehicle battery pack according to (1).
A first supply side connection portion (first supply side connection portion 671) that connects the supply pipe and the supply side connection portion, and a second supply side connection portion that connects the supply side connection portion and the battery cooling portion. It is arranged so as to be offset from the (second supply side connection portion 672) in the front-rear direction.
A first discharge side connection portion (first discharge side connection portion 681) that connects the discharge pipe and the discharge side connection portion, and a second discharge side connection portion that connects the discharge side connection portion and the battery cooling portion. The (second discharge side connection portion 682) is a vehicle battery pack that is arranged so as to be offset in the front-rear direction.

(3)によれば、供給側連結部及び排出側連結部の長さを確保することができ、蛇腹部の設定や応力の緩和が可能となる。 According to (3), the lengths of the supply-side connecting portion and the discharging-side connecting portion can be secured, and the bellows portion can be set and the stress can be relaxed.

(4) (2)又は(3)に記載の車両用バッテリパックであって、
前記複数のバッテリモジュールは、前記車幅方向において2列に配置され、
前記供給配管と前記バッテリケースとの供給側ケース接続部(供給側ケース接続部86)は、前記車幅方向において一方側に配置され、
前記排出配管と前記バッテリケースとの排出側ケース接続部(排出側ケース接続部87)は、前記車幅方向において他方側に配置され、
前記供給配管の前記前部配管部は、前記一方側で分岐し、
前記排出配管の前記前部配管部は、前記他方側で合流し、
前記供給配管の前記前部配管部及び前記排出配管の前記前部配管部は、前後方向から見て交差する、車両用バッテリパック。
(4) The vehicle battery pack according to (2) or (3).
The plurality of battery modules are arranged in two rows in the vehicle width direction.
The supply-side case connection portion (supply-side case connection portion 86) between the supply pipe and the battery case is arranged on one side in the vehicle width direction.
The discharge side case connection portion (discharge side case connection portion 87) between the discharge pipe and the battery case is arranged on the other side in the vehicle width direction.
The front piping portion of the supply piping branches on one side of the supply piping.
The front piping portion of the discharge pipe merges on the other side.
A vehicle battery pack in which the front piping portion of the supply pipe and the front piping portion of the discharge pipe intersect when viewed from the front-rear direction.

(4)によれば、供給配管の前部配管部及び排出配管の前部配管部を共通化することが可能となる。 According to (4), it is possible to standardize the front piping portion of the supply pipe and the front piping portion of the discharge pipe.

(5) (4)に記載の車両用バッテリパックであって、
前記供給配管の前記前部配管部及び前記排出配管の前記前部配管部は、同一形状を有する、車両用バッテリパック。
(5) The vehicle battery pack according to (4).
The front piping portion of the supply pipe and the front piping portion of the discharge pipe have the same shape, and are battery packs for vehicles.

(5)によれば、供給配管の前部配管部及び排出配管の前部配管部を共通化することで、部品の種類が増えることを抑制できる。 According to (5), by sharing the front piping portion of the supply pipe and the front piping portion of the discharge pipe, it is possible to suppress an increase in the types of parts.

60 バッテリパック
61 バッテリモジュール
62 バッテリケース
63 バッテリ冷却部
65 供給配管
651 前部供給配管部
652L 左側部供給配管部
652R 右側部供給配管部
66 排出配管
661 前部排出配管部
662L 左側部排出配管部
662R 右側部排出配管部
67 供給側連結部
671 第1供給側接続部
672 第2供給側接続部
68 排出側連結部
681 第1排出側接続部
682 第2排出側接続部
82 前壁
84 左側壁
85 右側壁
86 供給側ケース接続部
87 排出側ケース接続部
60 Battery pack 61 Battery module 62 Battery case 63 Battery cooling unit 65 Supply pipe 651 Front supply pipe 652L Left side supply pipe 652R Right side supply pipe 66 Discharge pipe 661 Front discharge pipe 662L Left side discharge pipe 662R Right side discharge piping 67 Supply side connection 671 First supply side connection 672 Second supply side connection 68 Discharge side connection 681 First discharge side connection 682 Second discharge side connection 82 Front wall 84 Left side wall 85 Right side wall 86 Supply side case connection 87 Discharge side case connection

Claims (5)

複数のバッテリモジュールと、
前記複数のバッテリモジュールの下方に配置され、内部に冷媒が通る冷媒通路を有するバッテリ冷却部と、
前記複数のバッテリモジュール及び前記バッテリ冷却部を収容するバッテリケースと、
前記バッテリケースに収容され、前記バッテリケースの外部から前記バッテリ冷却部へ冷媒を導入する供給配管と、
前記バッテリケースに収容され、前記バッテリ冷却部から前記バッテリケースの外部へ前記冷媒を排出する排出配管と、備える車両用バッテリパックであって、
前記供給配管と前記バッテリ冷却部とを連結する供給側連結部、及び前記排出配管と前記バッテリ冷却部とを連結する排出側連結部は、車幅方向において、前記複数のバッテリモジュールの外側に配置され、
前記供給配管及び前記排出配管は、
前記バッテリケースの前壁と前記複数のバッテリモジュールとの間に配置された前部配管部と、
前記バッテリケースの側壁と前記複数のバッテリモジュールとの間に配置された側部配管部と、を備え、
前記側部配管部は、前記供給配管及び前記排出配管が上下方向で異なる位置に配置され、水平方向から見て互いに重ならない、車両用バッテリパック。
With multiple battery modules
A battery cooling unit, which is arranged below the plurality of battery modules and has a refrigerant passage through which the refrigerant passes,
A battery case accommodating the plurality of battery modules and the battery cooling unit,
A supply pipe housed in the battery case and introducing a refrigerant from the outside of the battery case to the battery cooling unit.
A vehicle battery pack including a discharge pipe housed in the battery case and discharging the refrigerant from the battery cooling unit to the outside of the battery case.
The supply-side connecting portion connecting the supply pipe and the battery cooling unit and the discharging-side connecting portion connecting the discharging pipe and the battery cooling unit are arranged outside the plurality of battery modules in the vehicle width direction. Being done
The supply pipe and the discharge pipe
A front piping portion arranged between the front wall of the battery case and the plurality of battery modules, and
A side piping portion arranged between the side wall of the battery case and the plurality of battery modules is provided.
The side piping section is a vehicle battery pack in which the supply piping and the discharge piping are arranged at different positions in the vertical direction and do not overlap each other when viewed from the horizontal direction.
請求項1に記載の車両用バッテリパックであって、
前記供給側連結部及び前記排出側連結部は、それぞれ蛇腹形状を有する、車両用バッテリパック。
The vehicle battery pack according to claim 1.
The supply-side connecting portion and the discharging-side connecting portion each have a bellows shape, and are battery packs for vehicles.
請求項1に記載の車両用バッテリパックであって、
前記供給配管と前記供給側連結部とを接続する第1供給側接続部と、前記供給側連結部と前記バッテリ冷却部とを接続する第2供給側接続部とは、前後方向においてずれて配置され、
前記排出配管と前記排出側連結部とを接続する第1排出側接続部と、前記排出側連結部と前記バッテリ冷却部とを接続する第2排出側接続部とは、前記前後方向においてずれて配置されている、車両用バッテリパック。
The vehicle battery pack according to claim 1.
The first supply-side connection portion that connects the supply pipe and the supply-side connection portion and the second supply-side connection portion that connects the supply-side connection portion and the battery cooling portion are arranged so as to be offset in the front-rear direction. Being done
The first discharge side connection portion connecting the discharge pipe and the discharge side connection portion and the second discharge side connection portion connecting the discharge side connection portion and the battery cooling portion are displaced in the front-rear direction. The battery pack for the vehicle that is placed.
請求項2又は3に記載の車両用バッテリパックであって、
前記複数のバッテリモジュールは、前記車幅方向において2列に配置され、
前記供給配管と前記バッテリケースとの供給側ケース接続部は、前記車幅方向において一方側に配置され、
前記排出配管と前記バッテリケースとの排出側ケース接続部は、前記車幅方向において他方側に配置され、
前記供給配管の前記前部配管部は、前記一方側で分岐し、
前記排出配管の前記前部配管部は、前記他方側で合流し、
前記供給配管の前記前部配管部及び前記排出配管の前記前部配管部は、前後方向から見て交差する、車両用バッテリパック。
The vehicle battery pack according to claim 2 or 3.
The plurality of battery modules are arranged in two rows in the vehicle width direction.
The supply side case connection portion between the supply pipe and the battery case is arranged on one side in the vehicle width direction.
The discharge side case connection portion between the discharge pipe and the battery case is arranged on the other side in the vehicle width direction.
The front piping portion of the supply piping branches on one side of the supply piping.
The front piping portion of the discharge pipe merges on the other side.
A vehicle battery pack in which the front piping portion of the supply pipe and the front piping portion of the discharge pipe intersect when viewed from the front-rear direction.
請求項4に記載の車両用バッテリパックであって、
前記供給配管の前記前部配管部及び前記排出配管の前記前部配管部は、同一形状を有する、車両用バッテリパック。
The vehicle battery pack according to claim 4.
The front piping portion of the supply pipe and the front piping portion of the discharge pipe have the same shape, and are battery packs for vehicles.
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