JP2004158393A - Battery cooling device for automobile - Google Patents

Battery cooling device for automobile Download PDF

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Publication number
JP2004158393A
JP2004158393A JP2002325543A JP2002325543A JP2004158393A JP 2004158393 A JP2004158393 A JP 2004158393A JP 2002325543 A JP2002325543 A JP 2002325543A JP 2002325543 A JP2002325543 A JP 2002325543A JP 2004158393 A JP2004158393 A JP 2004158393A
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Japan
Prior art keywords
cooling air
battery
cooling
battery case
batteries
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Pending
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JP2002325543A
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Japanese (ja)
Inventor
Tomonaga Sugimoto
智永 杉本
Takaki Uejima
宇貴 上島
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Nissan Motor Co Ltd
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Nissan Motor Co Ltd
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Priority to JP2002325543A priority Critical patent/JP2004158393A/en
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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

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  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a battery cooling device for an automobile with excellent uniformity in cooling effect. <P>SOLUTION: The device is provided with a first cooling air channel 117 in which cooling air is guided aslant from an intake 102 toward a central region of a battery case 101, and a second cooling air channel 118 deflecting the cooling air at the central region of the battery case and guiding the cooling air aslant toward an exhaust vent 103. A plurality of batteries are housed aslant in parallel with each other in the direction in which the cooling air flowing in the first cooling air channel 117 flows almost in parallel with a main face of each battery 104, and a plurality of batteries are housed aslant in parallel with each other in the direction in which the cooling air flowing in the second cooling air channel 118 flows almost in parallel with a main face of each battery 104. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【技術分野】
本発明は、自動車などの移動体に搭載される電池冷却装置に関し、特に冷却効果の均一性に優れた自動車用電池冷却装置に関する。
【0002】
【背景技術】
電気自動車などに搭載される二次電池は、電気化学反応により内部発熱し、温度上昇するが、高温になると発電効率が低下するため、所定の温度に冷却するための冷却装置が設けられる。従来の自動車用電池冷却装置としては、ファンを用いて電池を収容するケースに冷却風を供給し、この冷却風により電池を冷却するものが知られている。
【0003】
ところで、自動車に電池モジュールを搭載する場合、スペースや性能等の関係上その搭載位置が限られるので、電池冷却装置の吸気口及び排気口の設定位置も限定されることが少なくない。たとえば、電池モジュールは車体の床面に搭載されることが多いが、この場合、吸気口や排気口を床裏に向けて設定すると、室外から塵埃が浸入するおそれがある。したがって、吸気口や排気口は電池収納ケースの上面に設定されることがある。
【0004】
図7は電池収容ケース101の上面に冷却風の吸気口102と排気口103とを設けた検討例を示す断面図であるが、この構造には以下の問題があった。
【0005】
すなわち、吸気ファン107により吸引された冷却風は、矢印にて示すように吸気口102から電池ケース101内に入り、当該電池ケース101内に立設された複数の電池104の隙間及び支持フレーム105と電池ケース底面との間を通過しながら排気口103に至るが、電池ケース101内の部位によっては、電池104間の隙間を冷却風が円滑に流れる部分と、冷却風が円滑に流れずに渦流Wになる部分とが生じ、電池の冷却効果が不均一となって電池間の温度が不均一となる。
【0006】
このため、冷却効果が低い部分に配置された電池は、冷却効果が高い部分に配置された電池に比べて相対的に寿命が短くなり、その結果、電池モジュール全体としても寿命が短くなるといった問題があった。
【0007】
【発明の開示】
本発明は、冷却効果の均一性に優れた自動車用電池冷却装置を提供することを目的とする。
【0008】
上記目的を達成するために、本発明によれば、複数の角形電池を収容するとともに吸気口と排気口とが実質的に同じ天井面に形成された直方体状電池ケースと、前記電池ケース内に形成され前記吸気口を介して供給された冷却風を電池ケース内で偏向させて前記排気口に導く冷却風路と、前記冷却風路に冷却風を供給して排気するファンと、を有する自動車用電池冷却装置であって、
前記冷却風路は、前記冷却風が前記吸気口から電池ケースの中央領域に向かって斜めに導入される第1の冷却風路と、当該電池ケースの中央領域で偏向して前記排気口に向かって斜めに導出される第2の冷却風路とを有し、
前記電池ケースは、前記第1の冷却風路において当該第1の冷却風路を流れる冷却風が各電池の主面に略平行に流れる方向に前記複数の電池を並行に傾斜させて収容するとともに、前記第2の冷却風路において当該第2の冷却風路を流れる冷却風が各電池の主面に略平行に流れる方向に前記複数の電池を並行に傾斜させて収容する自動車用電池冷却装置が提供される。
【0009】
本発明では、吸気口から電池ケースの中央領域に向かう傾斜した第1の冷却風路と、電池ケースの中央領域から排気口に向かう傾斜した第2の冷却風路を設け、ここに電池を平行に傾斜して設けたので、電池ケースを通過する冷却風の経路長が短くなり、冷却風が電池間をスムーズに流れることになる。また、電池自体も第1及び第2の冷却風路に並行に配置されているので電池間で冷却風の滞留が発生せず、電池の冷却効果が均一になる。
【0010】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて説明する。
図1は本発明の実施形態に係る電池冷却装置を示す断面図、図2は図1に示す電池冷却装置の電池ケース本体を示す斜視図、図3は図1に示す電池冷却装置の蓋体を示す斜視図、図4は図3に示す蓋体の裏面を示す斜視図、図5は図1に示す電池冷却装置の搭載位置を示す自動車の側面図、図6は本発明に係る電池を示す斜視図である。
【0011】
本実施形態の電池冷却装置10は、たとえば図5に示すように自動車車体のフロアFLに搭載され、これに接続された吸気ダクト401はフロアFLから車両前方に延在してフロントグリル部にて開口している。また、電池冷却装置10に接続された排気ダクト403は、フロアFLから車両後方に延在してリヤパネル部にて開口している。こうした吸気ダクト401及び排気ダクト402のレイアウトでは、これらのダクトを接続する吸気口と排気口とを電池ケースの上面に設けることが行われる。
【0012】
本実施形態の電池冷却装置10は、図1〜図3に示すように、上面が開口した直方体形状の電池ケース本体101と、この電池ケース本体101の上面開口に装着される蓋体106とを備えている。
【0013】
本実施形態の電池104としては、たとえば図6(A)に示す直方体状の電池104や同図(B)に示す薄型電池104など、平面を有する角形電池を用いることができる。同図(A)に示す直方体状電池104は、内部に正極、電解質、セパレータ及び負極を収納するケース104aと、正極端子104bと、負極端子104cとを有し、ケース104aの外面が主として平面で構成されている。同図(B)に示す薄型電池104は、内部に正極、電解質、セパレータ及び負極を収納するシート状の外装104Aと、正極端子104Bと、負極端子104Cとを有し、外装104Aの外面が主として平面で構成されている。このように、電池104のケース104a,104Aの外面が、主として平面で構成された電池が本実施形態で適用して好ましいものである。ただし、厳密な意味での平面でなくとも、後述するように冷却風の流れをスムーズにさせる作用を奏する面であればよい。
【0014】
図1に示すように、電池ケース本体101の底面には支持フレーム105が底面から僅かな隙間S1をもって固定されており、この支持フレーム105の上に、図2に示すように長手方向の真ん中Cを中心にして上開き状(全体的にはV字状)に複数の電池104が傾斜して配置される。なお、最も外側に配置された電池104と電池ケース101との間には断面三角形状のスペースS2が生じるが、ここに電池104と平行に平板112が設けられている。この平板112は、後述する冷却風の流れをより円滑にするためのものであり、電池ケース101の隅に発生する渦流を抑制する。
【0015】
電池ケース本体101の真ん中Cを中心にして、図1中、左側の領域を第1の冷却風路117、右側の領域を第2の冷却風路118と称する。ここで、第1の冷却風路117とは、吸気ダクト401を介して導入された冷却風が、吸気口102から電池ケース本体101の中央領域に向かって斜めに導入される風路をいい、これに対して、第2の冷却風路118とは、電池ケース本体101の中央領域で偏向した冷却風が排気口103に向かって斜めに導出される風路をいう。詳細は後述する。
【0016】
電池ケース本体101の上面開口に装着される蓋体106は、図3及び図4に示すように、両端に吸気口102及び排気口103が形成され、この吸気口102及び排気口103のそれぞれにダクト115,116が設けられている。
【0017】
本例のダクト115は、上述した吸気ダクト401に接続されて冷却風を電池ケース101内に供給するための接続部材であり、図1及び図3に示すように、電池ケース101内に配置された電池104の傾斜角度とほぼ同じ傾斜角度に形成されている。これにより、吸気ダクト401を介して導入された冷却風は、このダクト115によって電池104の並列方向に偏向され、その結果、吸気口102から電池ケース本体101の第1の冷却風路117に導入された冷却風は、各電池104に沿ってスムーズに流れることとなり、吸気口102の近傍で冷却風が滞留することが防止される。
【0018】
同様に、本例のダクト116は、上述した排気ダクト403に接続されて冷却風を電池ケース本体101内から排気するための接続部材であり、図1及び図3に示すように、電池ケース本体101内に配置された電池104の傾斜角度とほぼ同じ傾斜角度に形成されている。これにより、第2の冷却風路118に沿って導出される冷却風は、このダクト116によってスムーズに排気ダクト403に導かれることになり、排気口103の近傍で冷却風が滞留することが防止される。
【0019】
電池ケース本体101内に、図1及び図2に示すように真ん中Cを中心にして、上開き状に複数の電池104を傾斜して配置すると、中央領域の上部に断面逆三角形のスペースS3が形成される。本実施形態では、この断面逆三角形のスペースS3に電池モジュールの制御装置119を設けている。具体的には、図4に示すように、蓋体1の裏面にブラケット120を用いて制御装置119を取り付け、断面逆三角形のスペースS3に応じた形状のカバー122を制御装置119に被せることで当該制御装置119を塵埃などの浸入から保護する。なお、各電池104との間の信号線111は図1に示すように断面逆三角形のスペースS3を利用してここに集約し、また外部コントローラとの間の信号線123は蓋体106に開設した通孔123を挿通させることで外部に出すことができる。
【0020】
本実施形態では、電池モジュールの制御装置119を電池ケース本体101内に内蔵できるので、電池104と制御装置119とをつなぐ信号線111の取り廻しスペースが不要となり、特に狭小な自動車用として有利となる。
【0021】
なお、図1において107は吸気ダクト401に設けられた吸気ファン、108は排気ダクト403に設けられた排気ファンである。
【0022】
次に作用を説明する。
吸気ファン107及び排気ファン108を作動して吸気ダクト401から冷却風を吸引すると、この冷却風は吸気口102のダクト115によって偏向される。この偏向方向は、第1の冷却風路117に配置された電池104の傾斜方向となり、これにより吸気口102から冷却風が円滑に第1の冷却風路117に導入され、この近傍での冷却風の滞留が防止される。
【0023】
第1の冷却風路117に導入された冷却風は、図1に矢印で示すように、各電池104の間を電池104の表面に沿って流れ、このとき電池104から熱を奪うことで電池を冷却する。この第1の冷却風路117においては、電池104が並行して傾斜して設けられているので、各電池間の冷却風の滞留が防止され、これにより電池104の冷却効果が均一となる。その結果、それぞれの電池温度のばらつきが小さくなって電池寿命も均一となり、電池モジュールとして延命することになる。
【0024】
また、電池ケース本体101の隅に平板112を設けているので、ここでも冷却風の滞留が防止でき、最外側の電池の冷却効果もその他の電池と均一になる。
【0025】
第1の冷却風路117を流下した冷却風は支持フレーム105と電池ケース本体の底面との間のスペースS1に至り、ここで排気口103方向へ偏向する。本例では排気ダクト403に排気ファン108を設けているので(いわゆるプッシュ・プル方式)、電池ケース本体101の中央領域での偏向も円滑に行われる。また、電池モジュールの制御装置119を保護するためのカバー122もこの偏向作用に寄与することになる。
【0026】
電池ケース本体101の中央領域で偏向した冷却風は、第2の冷却風路118へ導入され、同図に矢印で示すように各電池104の間を電池104の表面に沿って流れ、このとき電池104から熱を奪うことで電池を冷却する。この第2の冷却風路118においても、第1の冷却風路117と同様、電池104が並行して傾斜して設けられているので、各電池間の冷却風の滞留が防止され、これにより電池104の冷却効果が均一となる。その結果、それぞれの電池温度のばらつきが小さくなって電池寿命も均一となり、電池モジュールとして延命することになる。
【0027】
また、電池ケース本体101の隅に平板112を設けているので、ここでも冷却風の滞留が防止でき、最外側の電池の冷却効果もその他の電池と均一になる。さらに、排気口103にはダクト116が設けられているので、第2の冷却風路118に沿って導出される冷却風は、このダクト116によってスムーズに排気ダクト403に導かれることになり、排気口103の近傍で冷却風が滞留することが防止される。
【0028】
このように、本実施形態の電池冷却装置10によれば、第1の冷却風路117及び第2の冷却風路118のそれぞれにおいて冷却風による電池の冷却効果が均一となり、しかも、第1の冷却風路117と第2の冷却風路118との間においても冷却風の風量がほぼ均一であることから、全ての電池104の冷却効果が均一となる。
【0029】
また、電池ケース本体101内に電池104を傾斜して配置しているので、電池冷却装置10としての高さh1が、図7に示す例の高さh2に比べて低くなる。したがって、特に自動車のフロアに搭載する場合に搭載しやすくなる。
【0030】
なお、以上説明した実施形態は、本発明の理解を容易にするために記載されたものであって、本発明を限定するために記載されたものではない。したがって、上記の実施形態に開示された各要素は、本発明の技術的範囲に属する全ての設計変更や均等物をも含む趣旨である。
【図面の簡単な説明】
【図1】本発明の実施形態に係る電池冷却装置を示す断面図である。
【図2】図1に示す電池冷却装置の電池ケース本体を示す斜視図である。
【図3】図1に示す電池冷却装置の蓋体を示す斜視図である。
【図4】図3に示す蓋体の裏面を示す斜視図である。
【図5】図1に示す電池冷却装置の搭載位置を示す自動車の側面図である。
【図6】本発明に係る電池を示す斜視図である。
【図7】本発明の問題点を説明するための参考断面図である。
【符号の説明】
10…電池冷却装置
101…電池ケース本体
102…吸気口
103…排気口
104…電池
105…支持フレーム
106…蓋体
107…吸気ファン
108…排気ファン
115,116…ダクト
117…第1の冷却風路
118…第2の冷却風路
119…制御装置
[0001]
【Technical field】
The present invention relates to a battery cooling device mounted on a moving body such as an automobile, and more particularly to a battery cooling device for an automobile having excellent uniform cooling effect.
[0002]
[Background Art]
A secondary battery mounted on an electric vehicle or the like generates internal heat due to an electrochemical reaction and rises in temperature. However, when the temperature rises, power generation efficiency decreases. Therefore, a cooling device for cooling to a predetermined temperature is provided. 2. Description of the Related Art As a conventional vehicle battery cooling device, there is known a device that uses a fan to supply cooling air to a case housing a battery and cools the battery with the cooling air.
[0003]
By the way, when a battery module is mounted on an automobile, its mounting position is limited due to space, performance, and the like, so that the setting positions of the intake port and the exhaust port of the battery cooling device are often limited. For example, the battery module is often mounted on the floor of the vehicle body. In this case, if the intake port and the exhaust port are set to face the floor, dust may enter from outside. Therefore, the intake port and the exhaust port may be set on the upper surface of the battery storage case.
[0004]
FIG. 7 is a cross-sectional view showing a study example in which a cooling air intake port 102 and an exhaust port 103 are provided on the upper surface of the battery housing case 101. However, this structure has the following problems.
[0005]
That is, the cooling air sucked by the intake fan 107 enters the battery case 101 from the intake port 102 as shown by an arrow, and the gap between the plurality of batteries 104 erected in the battery case 101 and the support frame 105. To the exhaust port 103 while passing between the battery case 101 and the bottom of the battery case. However, depending on the location inside the battery case 101, the cooling air smoothly flows through the gap between the batteries 104 and the cooling air does not flow smoothly. A portion that becomes a vortex W is generated, and the cooling effect of the batteries becomes uneven, and the temperature between the batteries becomes uneven.
[0006]
For this reason, a battery arranged in a portion having a low cooling effect has a relatively shorter life than a battery arranged in a portion having a high cooling effect, and as a result, the life of the battery module as a whole is also shortened. was there.
[0007]
DISCLOSURE OF THE INVENTION
SUMMARY OF THE INVENTION An object of the present invention is to provide an automotive battery cooling device having excellent cooling effect uniformity.
[0008]
To achieve the above object, according to the present invention, a rectangular parallelepiped battery case accommodating a plurality of prismatic batteries and having an intake port and an exhaust port formed on substantially the same ceiling surface, and inside the battery case. A vehicle having a cooling air path formed and deflected in the battery case to supply cooling air supplied through the intake port to the exhaust port, and a fan that supplies cooling air to the cooling air path and exhausts the air; Battery cooling device for
The cooling air path includes a first cooling air path in which the cooling air is obliquely introduced from the intake port toward the central area of the battery case, and a first cooling air path deflected in the central area of the battery case toward the exhaust port. And a second cooling air passage obliquely led out,
The battery case accommodates the plurality of batteries in such a manner that the plurality of batteries are inclined in parallel in a direction in which the cooling air flowing through the first cooling air passage flows in the first cooling air passage substantially in parallel with the main surface of each battery. A battery cooling device for an automobile, which accommodates the plurality of batteries in a manner inclined in parallel in a direction in which cooling air flowing in the second cooling air passage flows substantially parallel to the main surface of each battery in the second cooling air passage; Is provided.
[0009]
In the present invention, a first cooling air passage inclined from the intake port toward the central region of the battery case and a second cooling air passage inclined from the central region of the battery case toward the exhaust port are provided, and the batteries are parallelized here. As a result, the path length of the cooling air passing through the battery case is shortened, and the cooling air flows smoothly between the batteries. In addition, since the batteries themselves are also arranged in parallel with the first and second cooling air passages, there is no stagnation of cooling air between the batteries, and the cooling effect of the batteries becomes uniform.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a sectional view showing a battery cooling device according to an embodiment of the present invention, FIG. 2 is a perspective view showing a battery case main body of the battery cooling device shown in FIG. 1, and FIG. 3 is a lid of the battery cooling device shown in FIG. FIG. 4 is a perspective view showing the back surface of the lid shown in FIG. 3, FIG. 5 is a side view of an automobile showing a mounting position of the battery cooling device shown in FIG. 1, and FIG. 6 is a battery according to the present invention. FIG.
[0011]
The battery cooling device 10 of the present embodiment is mounted on a floor FL of an automobile body, for example, as shown in FIG. 5, and an intake duct 401 connected to the vehicle extends from the floor FL to the front of the vehicle and is provided at a front grill portion. It is open. The exhaust duct 403 connected to the battery cooling device 10 extends from the floor FL to the rear of the vehicle and opens at the rear panel. In the layout of the intake duct 401 and the exhaust duct 402, an intake port and an exhaust port connecting these ducts are provided on the upper surface of the battery case.
[0012]
As shown in FIGS. 1 to 3, the battery cooling device 10 of the present embodiment includes a rectangular parallelepiped battery case main body 101 having an open upper surface, and a lid body 106 mounted on the upper surface opening of the battery case main body 101. Have.
[0013]
As the battery 104 of this embodiment, for example, a rectangular battery having a flat surface such as a rectangular parallelepiped battery 104 shown in FIG. 6A or a thin battery 104 shown in FIG. 6B can be used. A rectangular parallelepiped battery 104 shown in FIG. 1A has a case 104a for housing a positive electrode, an electrolyte, a separator, and a negative electrode, a positive terminal 104b, and a negative terminal 104c, and the outer surface of the case 104a is mainly a flat surface. It is configured. The thin battery 104 shown in FIG. 2B has a sheet-like exterior 104A that houses a positive electrode, an electrolyte, a separator, and a negative electrode, a positive electrode terminal 104B, and a negative electrode terminal 104C. It is composed of a plane. As described above, a battery in which the outer surfaces of the cases 104a and 104A of the battery 104 are mainly formed of a flat surface is preferable in the present embodiment. However, the surface need not be a strictly flat surface as long as it has a function of smoothing the flow of cooling air as described later.
[0014]
As shown in FIG. 1, a support frame 105 is fixed to the bottom surface of the battery case main body 101 with a small gap S1 from the bottom surface. As shown in FIG. A plurality of batteries 104 are arranged obliquely in an upwardly open shape (generally in a V-shape). A space S2 having a triangular cross section is formed between the outermost battery 104 and the battery case 101, and a flat plate 112 is provided in parallel with the battery 104. The flat plate 112 is for smoothing the flow of a cooling air described later, and suppresses a vortex generated at a corner of the battery case 101.
[0015]
1, the left area is referred to as a first cooling air path 117, and the right area is referred to as a second cooling air path 118 with the center C in the center of the battery case main body 101. Here, the first cooling air passage 117 refers to an air passage through which cooling air introduced through the intake duct 401 is obliquely introduced from the air inlet 102 toward the central region of the battery case main body 101. On the other hand, the second cooling air passage 118 refers to an air passage in which the cooling air deflected in the central region of the battery case main body 101 is obliquely led out toward the exhaust port 103. Details will be described later.
[0016]
As shown in FIGS. 3 and 4, the lid 106 attached to the upper opening of the battery case main body 101 has an intake port 102 and an exhaust port 103 formed at both ends. Ducts 115 and 116 are provided.
[0017]
The duct 115 of this example is a connection member that is connected to the above-described intake duct 401 and supplies cooling air to the inside of the battery case 101, and is disposed inside the battery case 101 as shown in FIGS. 1 and 3. The battery 104 is formed at substantially the same tilt angle as the tilt angle of the battery 104. As a result, the cooling air introduced through the intake duct 401 is deflected by the duct 115 in the parallel direction of the batteries 104, and as a result, introduced into the first cooling air passage 117 of the battery case main body 101 from the intake port 102. The cooling air flows smoothly along each battery 104, and the cooling air is prevented from staying near the intake port 102.
[0018]
Similarly, the duct 116 of the present example is a connecting member that is connected to the above-described exhaust duct 403 and exhausts cooling air from the inside of the battery case main body 101. As shown in FIGS. The inclination angle of the battery 104 disposed in the inside 101 is substantially the same as that of the battery 104. Thereby, the cooling air led out along the second cooling air passage 118 is smoothly guided to the exhaust duct 403 by the duct 116, and the cooling air is prevented from staying near the exhaust port 103. Is done.
[0019]
As shown in FIGS. 1 and 2, when a plurality of batteries 104 are arranged obliquely in an upwardly open shape with the center C as a center in the battery case main body 101, a space S3 having an inverted triangular cross section is formed above the central region. It is formed. In the present embodiment, the controller 119 for the battery module is provided in the space S3 having an inverted triangular cross section. Specifically, as shown in FIG. 4, the control device 119 is attached to the back surface of the lid 1 using a bracket 120, and the control device 119 is covered with a cover 122 having a shape corresponding to a space S3 having an inverted triangular cross section. The control device 119 is protected from intrusion of dust and the like. The signal lines 111 between the respective batteries 104 are gathered here using a space S3 having an inverted triangular cross section as shown in FIG. 1, and the signal lines 123 between the battery and the external controller are provided on the lid 106. By passing through the through hole 123 thus formed, it can be taken out.
[0020]
In the present embodiment, since the control device 119 of the battery module can be built in the battery case main body 101, a space for the signal line 111 connecting the battery 104 and the control device 119 is not required, which is particularly advantageous for a narrow automobile. Become.
[0021]
1, reference numeral 107 denotes an intake fan provided in the intake duct 401, and reference numeral 108 denotes an exhaust fan provided in the exhaust duct 403.
[0022]
Next, the operation will be described.
When the cooling air is sucked from the air intake duct 401 by operating the intake fan 107 and the exhaust fan 108, the cooling air is deflected by the duct 115 of the air inlet 102. This deflecting direction is the direction of inclination of the battery 104 disposed in the first cooling air passage 117, whereby the cooling air is smoothly introduced from the intake port 102 into the first cooling air passage 117, and cooling in the vicinity thereof is performed. Wind stagnation is prevented.
[0023]
The cooling air introduced into the first cooling air passage 117 flows between the batteries 104 along the surface of the batteries 104 as shown by arrows in FIG. To cool. In the first cooling air passage 117, since the batteries 104 are provided in parallel and inclined, the cooling air is prevented from remaining between the batteries, and the cooling effect of the batteries 104 becomes uniform. As a result, variations in the battery temperatures are reduced, the battery life is made uniform, and the life of the battery module is extended.
[0024]
In addition, since the flat plate 112 is provided at the corner of the battery case main body 101, the cooling air can be prevented from staying here as well, and the cooling effect of the outermost battery becomes uniform with other batteries.
[0025]
The cooling air flowing down the first cooling air passage 117 reaches the space S1 between the support frame 105 and the bottom surface of the battery case main body, and is deflected toward the exhaust port 103 here. In this example, since the exhaust fan 108 is provided in the exhaust duct 403 (so-called push-pull method), deflection in the central region of the battery case main body 101 is also performed smoothly. Further, a cover 122 for protecting the control device 119 of the battery module also contributes to this deflecting action.
[0026]
The cooling air deflected in the central region of the battery case main body 101 is introduced into the second cooling air passage 118 and flows between the batteries 104 along the surface of the battery 104 as indicated by arrows in FIG. The battery is cooled by removing heat from the battery 104. In the second cooling air passage 118 as well, as in the first cooling air passage 117, the batteries 104 are provided so as to be inclined in parallel with each other. The cooling effect of the battery 104 becomes uniform. As a result, variations in the battery temperatures are reduced, the battery life is made uniform, and the life of the battery module is extended.
[0027]
In addition, since the flat plate 112 is provided at the corner of the battery case main body 101, the cooling air can be prevented from staying here as well, and the cooling effect of the outermost battery becomes uniform with other batteries. Further, since the exhaust port 103 is provided with the duct 116, the cooling air drawn out along the second cooling air passage 118 is smoothly guided to the exhaust duct 403 by the duct 116, The cooling air is prevented from staying near the opening 103.
[0028]
As described above, according to the battery cooling device 10 of the present embodiment, the cooling effect of the battery by the cooling air in each of the first cooling air passage 117 and the second cooling air passage 118 becomes uniform, Since the flow rate of the cooling air is also substantially uniform between the cooling air passage 117 and the second cooling air passage 118, the cooling effect of all the batteries 104 is uniform.
[0029]
In addition, since the batteries 104 are arranged obliquely in the battery case body 101, the height h1 of the battery cooling device 10 is lower than the height h2 of the example shown in FIG. Therefore, it becomes easy to mount, especially when mounted on the floor of an automobile.
[0030]
The embodiments described above are described for facilitating the understanding of the present invention, and are not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view illustrating a battery cooling device according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a battery case main body of the battery cooling device shown in FIG.
FIG. 3 is a perspective view showing a lid of the battery cooling device shown in FIG. 1;
FIG. 4 is a perspective view showing a back surface of the lid shown in FIG. 3;
FIG. 5 is a side view of the automobile showing a mounting position of the battery cooling device shown in FIG. 1;
FIG. 6 is a perspective view showing a battery according to the present invention.
FIG. 7 is a reference cross-sectional view for explaining a problem of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Battery cooling device 101 ... Battery case main body 102 ... Intake port 103 ... Exhaust port 104 ... Battery 105 ... Support frame 106 ... Lid 107 ... Intake fan 108 ... Exhaust fans 115 and 116 ... Duct 117 ... First cooling air path 118 second cooling air passage 119 control device

Claims (4)

複数の角形電池を収容するとともに吸気口と排気口とが実質的に同じ天井面に形成された直方体状電池ケースと、前記電池ケース内に形成され前記吸気口を介して供給された冷却風を電池ケース内で偏向させて前記排気口に導く冷却風路と、前記冷却風路に冷却風を供給して排気するファンと、を有する自動車用電池冷却装置であって、
前記冷却風路は、前記冷却風が前記吸気口から電池ケースの中央領域に向かって斜めに導入される第1の冷却風路と、当該電池ケースの中央領域で偏向して前記排気口に向かって斜めに導出される第2の冷却風路とを有し、
前記電池ケースは、前記第1の冷却風路において当該第1の冷却風路を流れる冷却風が各電池の主面に略平行に流れる方向に前記複数の電池を並行に傾斜させて収容するとともに、前記第2の冷却風路において当該第2の冷却風路を流れる冷却風が各電池の主面に略平行に流れる方向に前記複数の電池を並行に傾斜させて収容する自動車用電池冷却装置。
A rectangular parallelepiped battery case accommodating a plurality of prismatic batteries and having an intake port and an exhaust port formed on substantially the same ceiling surface, and cooling air formed in the battery case and supplied through the intake port. A battery cooling device for an automobile, comprising: a cooling air path that is deflected in a battery case and guided to the exhaust port; and a fan that supplies cooling air to the cooling air path and exhausts the air.
The cooling air path includes a first cooling air path in which the cooling air is obliquely introduced from the intake port toward the central area of the battery case, and a first cooling air path deflected in the central area of the battery case toward the exhaust port. And a second cooling air passage obliquely led out,
The battery case accommodates the plurality of batteries in such a manner that the plurality of batteries are inclined in parallel in a direction in which the cooling air flowing through the first cooling air passage flows in the first cooling air passage substantially in parallel with the main surface of each battery. A battery cooling device for an automobile, which accommodates the plurality of batteries in a manner inclined in parallel in a direction in which cooling air flowing in the second cooling air passage flows substantially parallel to the main surface of each battery in the second cooling air passage; .
前記電池ケースの中央領域の天井面近傍に、前記電池の制御装置が配置される空間を有する請求項1記載の自動車用電池冷却装置。The vehicle battery cooling device according to claim 1, further comprising a space in a central area of the battery case near a ceiling surface, in which the battery control device is disposed. 前記吸気口に、前記第1の冷却風路への冷却風の導入方向に沿ったダクトを有する請求項1または2記載の自動車用電池冷却装置。The vehicle battery cooling device according to claim 1, wherein the intake port has a duct along a direction in which cooling air is introduced into the first cooling air passage. 前記排気口に、前記第2の冷却風路からの冷却風の導出方向に沿ったダクトを有する請求項1〜3の何れかに記載の自動車用電池冷却装置。The vehicle battery cooling device according to any one of claims 1 to 3, wherein the exhaust port has a duct extending in a direction in which the cooling air flows from the second cooling air passage.
JP2002325543A 2002-11-08 2002-11-08 Battery cooling device for automobile Pending JP2004158393A (en)

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JP2006073255A (en) * 2004-08-31 2006-03-16 Sanyo Electric Co Ltd Power source device for vehicle
EP1662602A1 (en) * 2004-11-30 2006-05-31 Samsung SDI Co., Ltd. Secondary battery module
JP2006156383A (en) * 2004-11-30 2006-06-15 Samsung Sdi Co Ltd Secondary battery module
KR100612284B1 (en) 2004-10-28 2006-08-11 삼성에스디아이 주식회사 Secondary Battery Module and Cooling Device for The Same
KR100627312B1 (en) 2004-10-28 2006-09-25 삼성에스디아이 주식회사 Secondary Battery Module
KR100658717B1 (en) 2004-10-28 2006-12-15 삼성에스디아이 주식회사 Secondary battery module and cooling apparatus for secondary battery module
EP1753068A1 (en) * 2005-07-26 2007-02-14 Samsung SDI Co., Ltd. Battery module
JP2007234371A (en) * 2006-02-28 2007-09-13 Sanyo Electric Co Ltd Power supply device for vehicle
JP2009087646A (en) * 2007-09-28 2009-04-23 Mitsubishi Motors Corp Battery unit for electric vehicle
JP2009517831A (en) * 2005-12-02 2009-04-30 エルジー・ケム・リミテッド Battery module with high cooling efficiency
KR100993658B1 (en) 2008-12-01 2010-11-10 현대자동차일본기술연구소 Device for cooling battery of hybrid vehicle
JP2012084363A (en) * 2010-10-08 2012-04-26 Primearth Ev Energy Co Ltd Battery pack
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Publication number Priority date Publication date Assignee Title
JP2006073255A (en) * 2004-08-31 2006-03-16 Sanyo Electric Co Ltd Power source device for vehicle
KR100612284B1 (en) 2004-10-28 2006-08-11 삼성에스디아이 주식회사 Secondary Battery Module and Cooling Device for The Same
KR100627312B1 (en) 2004-10-28 2006-09-25 삼성에스디아이 주식회사 Secondary Battery Module
KR100658717B1 (en) 2004-10-28 2006-12-15 삼성에스디아이 주식회사 Secondary battery module and cooling apparatus for secondary battery module
EP1662602A1 (en) * 2004-11-30 2006-05-31 Samsung SDI Co., Ltd. Secondary battery module
JP2006156405A (en) * 2004-11-30 2006-06-15 Samsung Sdi Co Ltd Secondary battery module
JP2006156383A (en) * 2004-11-30 2006-06-15 Samsung Sdi Co Ltd Secondary battery module
US7662508B2 (en) 2004-11-30 2010-02-16 Samsung Sdi Co., Ltd. Secondary battery module
EP1753068A1 (en) * 2005-07-26 2007-02-14 Samsung SDI Co., Ltd. Battery module
US8586228B2 (en) 2005-07-26 2013-11-19 Samsung Sdi Co., Ltd. Battery module
KR101029021B1 (en) * 2005-12-02 2011-04-14 주식회사 엘지화학 Battery Module of High Cooling Efficiency
JP2009517831A (en) * 2005-12-02 2009-04-30 エルジー・ケム・リミテッド Battery module with high cooling efficiency
JP2007234371A (en) * 2006-02-28 2007-09-13 Sanyo Electric Co Ltd Power supply device for vehicle
JP2009087646A (en) * 2007-09-28 2009-04-23 Mitsubishi Motors Corp Battery unit for electric vehicle
KR100993658B1 (en) 2008-12-01 2010-11-10 현대자동차일본기술연구소 Device for cooling battery of hybrid vehicle
JP2012084363A (en) * 2010-10-08 2012-04-26 Primearth Ev Energy Co Ltd Battery pack
WO2024080749A1 (en) * 2022-10-12 2024-04-18 주식회사 엘지에너지솔루션 Battery module with reinforced safety

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