JP2000294302A - Storage battery unit - Google Patents
Storage battery unitInfo
- Publication number
- JP2000294302A JP2000294302A JP10087699A JP10087699A JP2000294302A JP 2000294302 A JP2000294302 A JP 2000294302A JP 10087699 A JP10087699 A JP 10087699A JP 10087699 A JP10087699 A JP 10087699A JP 2000294302 A JP2000294302 A JP 2000294302A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- cooling
- cooling air
- battery modules
- battery module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は多数個の蓄電池モジ
ュールを収容した蓄電池ユニットに係り、特にその冷却
構造を改良したものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage battery unit accommodating a plurality of storage battery modules, and more particularly, to an improved cooling structure thereof.
【０００２】[0002]
【従来の技術】例えば電気自動車用の蓄電池ユニット
は、多数個の蓄電池モジュールをケース内に縦横に並べ
て構成されている。そして、内部の各蓄電池ユニットを
冷却するには、ケースの前面に冷却ファンからの風を採
り入れる冷気導入口を形成すると共に、ケース内の各蓄
電池モジュール相互間には風の流路が形成されるように
して蓄電池モジュールを配置し、冷却ファンからの風が
各蓄電池モジュールの側方を横向きに流れるように構成
していた。2. Description of the Related Art For example, a storage battery unit for an electric vehicle is configured by arranging a plurality of storage battery modules vertically and horizontally in a case. In order to cool the internal storage battery units, a cool air inlet for taking in the air from the cooling fan is formed on the front of the case, and a wind flow path is formed between the storage battery modules in the case. Thus, the storage battery modules are arranged in such a manner that the wind from the cooling fan flows sideways on each storage battery module.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記構造で
は、冷却風が各蓄電池モジュールを風上のものから順に
冷却して行く構成であるから、冷却風が蓄電池モジュー
ルを冷却しながらケース内を流れるに従い次第に温度を
上昇させてしまい、結局、風下側の蓄電池モジュールの
冷却が不十分になるという問題があった。これを避ける
には、冷却ファンの出力を増大させることが必要で、全
体の大型化も招くという問題があった。However, in the above structure, since the cooling air cools each storage battery module in order from the windward one, the cooling air flows in the case while cooling the storage battery module. As a result, the temperature gradually increases, and as a result, there is a problem that the cooling of the storage battery module on the leeward side becomes insufficient. In order to avoid this, it is necessary to increase the output of the cooling fan, and there has been a problem that the overall size is also increased.
【０００４】そこで、本発明は、ケース内に収容した蓄
電池モジュールの冷却を効率的に行うことができる蓄電
池ユニットを提供することを目的とする。Accordingly, an object of the present invention is to provide a storage battery unit that can efficiently cool a storage battery module housed in a case.
【０００５】[0005]
【課題を解決するための手段及び作用】請求項１の発明
は、ケース内に複数個の蓄電池モジュールを収容して空
冷するようにしたものにおいて、前記蓄電池モジュール
を相互間に上下に延びる外部冷却流路を形成するように
してケース本体内に配置し、そのケース本体の下面又は
上面には冷却風の圧力溜室を形成すると共に、その圧力
溜室から前記外部冷却流路に冷却風を流す導入開口を形
成して前記圧力溜室に供給される冷却風を前記蓄電池モ
ジュール間の外部冷却流路に上下に流すようにしたとこ
ろに特徴を有する。According to a first aspect of the present invention, a plurality of storage battery modules are accommodated in a case and air-cooled, and the external cooling module extends vertically between the storage battery modules. It is arranged in the case body so as to form a flow path, and a pressure chamber for cooling air is formed on the lower surface or upper surface of the case body, and cooling air flows from the pressure chamber to the external cooling channel. It is characterized in that an introduction opening is formed so that the cooling air supplied to the pressure storage chamber flows up and down to an external cooling passage between the storage battery modules.
【０００６】請求項２の発明は、請求項１の発明におい
て、圧力溜室を内部に供給される冷却風の風下側ほど狭
くなる形状としたところに特徴を有する。そして、請求
項３の発明は、請求項１又は２の発明において、蓄電池
モジュール内に、縦方向に延びる内部冷却流路を形成
し、その内部冷却流路に冷却風が流れるようにしたとこ
ろに特徴を有する。また、請求項４の発明は、請求項１
又は２の発明において、蓄電池モジュール内に、横方向
に延びる内部冷却流路を形成し、外部冷却流路には導入
開口から縦方向に流れる冷却風を前記内部冷却流路に横
方向に流すための風向変換板を設けたところに特徴を有
する。A second aspect of the present invention is characterized in that, in the first aspect of the present invention, the pressure reservoir is shaped so as to become narrower on the leeward side of the cooling air supplied to the inside. According to a third aspect of the present invention, in the first or second aspect, an internal cooling passage extending in the longitudinal direction is formed in the storage battery module, and cooling air flows through the internal cooling passage. Has features. Further, the invention of claim 4 is based on claim 1
In the invention according to the second aspect, an internal cooling flow path extending in the horizontal direction is formed in the storage battery module, and the cooling air flowing in the vertical direction from the introduction opening flows in the external cooling flow path in the internal cooling flow path in the horizontal direction. The feature is that the wind direction conversion plate is provided.
【０００７】[0007]
【発明の作用及び効果】請求項１の発明によれば、各蓄
電池モジュールの周りに形成される外部冷却流路には、
圧力溜室から直接に供給された冷却風が流れることにな
るから、各蓄電池モジュールを均一に冷却することがで
きる。また、外部冷却流路に冷却風の流入方向とは異な
る方向に風を流すとはいえ、圧力溜室を形成してここに
冷却風をいったん流入させて静圧を高め、これを外部冷
却流路に流入させるようにしているから、全体にわたっ
て均一に冷却風を流すことができて均一冷却に寄与す
る。According to the first aspect of the present invention, the external cooling passage formed around each storage battery module includes:
Since the cooling air supplied directly from the pressure storage chamber flows, each storage battery module can be uniformly cooled. In addition, although air flows in a direction different from the direction in which the cooling air flows into the external cooling flow path, a pressure reservoir is formed and cooling air is once introduced therein to increase the static pressure, and this is applied to the external cooling flow. Since the cooling air is allowed to flow into the path, the cooling air can be uniformly flowed over the entirety, thereby contributing to uniform cooling.
【０００８】請求項２の発明によれば、圧力溜室の特異
な形状によって風下側ほど圧力損失が大きくなるから、
均一冷却に一層寄与することになる。請求項３及び請求
項４の発明によれば、蓄電池モジュール内にも内部冷却
流路が形成されているから、各蓄電池モジュールの冷却
が一層効率的になる。According to the second aspect of the present invention, the pressure loss is increased toward the leeward side due to the peculiar shape of the pressure storage chamber.
This will further contribute to uniform cooling. According to the third and fourth aspects of the present invention, since the internal cooling passage is also formed in the storage battery module, the cooling of each storage battery module becomes more efficient.
【０００９】[0009]
【発明の実施の形態】＜第１実施形態＞以下、本発明を
電気自動車用の蓄電池ユニットに適用した第１実施形態
について図１ないし図４を参照して説明する。全体的な
外観は図１に示す通りで、扁平箱形のケース本体１０の
下面に圧力溜室２０を、上面に排気室３０をそれぞれ重
ねた構成であり、圧力溜室２０の前面が開口して冷却風
の取入口２１が形成されると共に、排気室３０の後面が
開口して排気口３１が後ろ向きに形成されている（図２
参照）。ケース本体１０の底面には圧力溜室２０との間
を仕切るように底板１１が設けられ、ここに図３に示す
ように多数の蓄電池モジュール１２が縦横に並べた一段
の平積み状態で固定されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS <First Embodiment> A first embodiment in which the present invention is applied to a storage battery unit for an electric vehicle will be described below with reference to FIGS. The overall appearance is as shown in FIG. 1, in which a pressure chamber 20 is stacked on the lower surface of a flat box-shaped case body 10 and an exhaust chamber 30 is stacked on the upper surface, and the front surface of the pressure chamber 20 is open. A cooling air intake 21 is formed, and a rear surface of the exhaust chamber 30 is opened to form an exhaust port 31 facing backward (FIG. 2).
reference). A bottom plate 11 is provided on the bottom surface of the case body 10 so as to partition between the pressure reservoir 20 and a plurality of storage battery modules 12 are fixed here in a one-stage flat-stacked state as shown in FIG. ing.
【００１０】この蓄電池モジュール１２は、図４に示す
ように例えば４個の単位蓄電池１３を相互間に例えば２
〜３mmの小さな間隔を開けることで内部冷却流路１４を
形成して横一列に配置し、各単位蓄電池１３の上下に設
けた取付板１５によって一体的に固定したものであり、
図示はしないが上部の取付板１５において各単位蓄電池
１３間の電気的接続を行うと共に、その充放電制御回路
を取付板１５上に構成してある。また、各蓄電池モジュ
ール１２の間には、前後左右に隙間を余して各モジュー
ル１２を並べることで相互間に上下に延びる外部冷却流
路１６が格子状に形成されている。As shown in FIG. 4, this storage battery module 12 has, for example, four unit storage batteries
The internal cooling passages 14 are formed by leaving a small interval of about 3 mm, arranged in a horizontal line, and integrally fixed by mounting plates 15 provided above and below each unit storage battery 13,
Although not shown, an electrical connection between the unit storage batteries 13 is made on an upper mounting plate 15, and a charge / discharge control circuit is configured on the mounting plate 15. Further, between the storage battery modules 12, an external cooling flow path 16 extending vertically is formed in a lattice shape by arranging the modules 12 with a gap left, right, front and rear.
【００１１】そして、上記ケース本体１０の底板１１に
は、上記外部冷却流路１６に対応して導入開口１７が開
口形成してあり、この導入開口１７を通して圧力溜室２
０から外部冷却流路１６に冷却風を流し込むことができ
る。なお、図２及び図３に示すように、ケース本体１０
の幅方向に延びる外部冷却流路１６には、上部がケース
本体１０の後方に寄った傾斜状態の風向変換板１８が、
外部冷却流路１６の全幅にわたって配置してあり、これ
により、導入開口１７から縦方向（上方）に流れる冷却
風を蓄電池モジュール１２の内部冷却流路１４に向けて
横方向に流すことができるようにしてある。An introduction opening 17 is formed in the bottom plate 11 of the case main body 10 in correspondence with the external cooling passage 16.
From 0, cooling air can flow into the external cooling channel 16. In addition, as shown in FIGS.
In the external cooling flow path 16 extending in the width direction of the case, a wind direction conversion plate 18 whose upper part is inclined toward the rear of the case body 10 is inclined.
It is arranged over the entire width of the external cooling channel 16, so that the cooling air flowing in the vertical direction (upward) from the introduction opening 17 can flow laterally toward the internal cooling channel 14 of the storage battery module 12. It is.
【００１２】上記構成の本実施形態によれば、図示しな
い冷却ファンが駆動されることにより、冷却風が圧力溜
室２０の取入口２１から流入し、圧力溜室２０内の圧力
を高める。このため、冷却風はケース本体１０の底板１
１に形成された導入開口１７から上に突き抜け、外部冷
却流路１６を下から上に流れる。そして、傾斜状態の風
向変換板１８の下後面側に衝突して横向きに流れ方向を
変え、蓄電池モジュール１２の内部冷却流路１４を前方
から後方へと突き抜け、蓄電池モジュール１２を貫通し
たところで今度は風向変換板１８の上前面側に衝突して
上向きに流れ方向を変えて排気室３０内に流入して後部
の排気口３１から排出される。このような蓄電池モジュ
ール１２の外部及び内部を通る冷却風の流れにより、各
蓄電池モジュール１２は冷却されることになる。According to the embodiment having the above-described structure, when a cooling fan (not shown) is driven, cooling air flows in from the inlet 21 of the pressure storage chamber 20 to increase the pressure in the pressure storage chamber 20. Therefore, the cooling air is supplied to the bottom plate 1 of the case body 10.
1, penetrates upward from the introduction opening 17 formed therein, and flows through the external cooling channel 16 from below. Then, it collides with the lower rear side of the inclined wind direction conversion plate 18 to change the flow direction sideways, penetrates the internal cooling flow path 14 of the storage battery module 12 from the front to the rear, and when it penetrates the storage battery module 12, It collides with the upper front side of the wind direction change plate 18, changes its flow direction upward, flows into the exhaust chamber 30, and is discharged from the rear exhaust port 31. Each storage battery module 12 is cooled by the flow of the cooling air passing through the outside and inside of the storage battery module 12.
【００１３】このように本実施形態によれば、冷却風は
いったん圧力溜室２０内に流入し、ここから各蓄電池モ
ジュール１２の周囲に一斉に供給される。従って、従来
のように冷却風が各蓄電池モジュールに接しながら風上
から順に冷却して行く構成とは異なり、各蓄電池モジュ
ール１２には等しい温度の冷却風が流されることにな
り、各蓄電池モジュール１２を均一に冷却することがで
きる。また、外部冷却流路１６に上下方向に冷却風を流
すとはいえ、圧力溜室２０を形成してここに冷却風をい
ったん流入させて静圧を高め、これを外部冷却流路１６
に流入させるようにしているから、全体にわたって均一
に冷却風を流すことができて蓄電池モジュール１２の均
一冷却に一層寄与する。この結果、異常昇温部分がなく
なるから、冷却ファンの出力を小さくすることができ、
冷却システム全体の小型化も可能である。しかも、特に
この実施形態では、各蓄電池モジュール１２に横方向に
延びる内部冷却流路１４を形成し、外部冷却流路１６に
風向変換板１８を配置することでその内部冷却流路１４
にも冷却風を流すようにしているから、蓄電池モジュー
ル１２内の単位蓄電池１３が直接に冷却され、効率的な
冷却が可能となる。As described above, according to the present embodiment, the cooling air once flows into the pressure storage chamber 20 and is supplied from there to the surroundings of the storage battery modules 12 at once. Therefore, unlike the conventional configuration in which the cooling air is sequentially cooled from the windward while being in contact with each storage battery module, the cooling air having the same temperature flows through each storage battery module 12 and each storage battery module 12 Can be uniformly cooled. In addition, although the cooling air flows vertically through the external cooling flow channel 16, a pressure reservoir 20 is formed and the cooling air is once introduced therein to increase the static pressure.
, The cooling air can be uniformly flowed over the entirety, which further contributes to uniform cooling of the storage battery module 12. As a result, since there is no abnormal temperature rising portion, the output of the cooling fan can be reduced,
The size of the entire cooling system can be reduced. Moreover, in this embodiment, in particular, in each of the storage battery modules 12, the internal cooling flow path 14 extending in the lateral direction is formed, and the wind direction change plate 18 is disposed in the external cooling flow path 16 so that the internal cooling flow path 14
Since the cooling air is also supplied to the storage battery module 12, the unit storage battery 13 in the storage battery module 12 is directly cooled, and efficient cooling is possible.
【００１４】＜第２実施形態＞図５は本発明の第２実施
形態を示す。前記第１実施形態との相違は圧力溜室２０
及び排気室３０の構造と、蓄電池モジュール１２の構造
とにあり、その他の点は第１実施形態と同様であるか
ら、同一部分に同一符号を付して重複説明を省略する。<Second Embodiment> FIG. 5 shows a second embodiment of the present invention. The difference from the first embodiment is that the pressure reservoir 20
The structure of the exhaust chamber 30 and the structure of the storage battery module 12 are the same as those of the first embodiment in other respects.
【００１５】まず、圧力溜室２０は冷却風の風下側（図
中、右側）ほど上下寸法が狭くなる形状である。また、
排気室３０は、圧力溜室２０とは対称的に排気風の風下
側（図中、右側）ほど上下寸法が広くなる形状である。
また、蓄電池モジュール１２は取付板１５が左右に位置
するように底板１１に固定されており、従って同モジュ
ール１２内に形成されている内部冷却流路１４が上下に
延びる形態となっている。上記構成とすると、風下側ほ
ど圧力損失が大きくなって底板１１の導入開口１７から
外部冷却流路１６に流れ込む風量を均一化して各蓄電池
モジュール１２の均一冷却に一層寄与することになる。
また、第１実施形態の風向変換板１８が不要になる。First, the pressure reservoir 20 has a shape in which the vertical dimension decreases toward the leeward side (right side in the figure) of the cooling air. Also,
The exhaust chamber 30 is shaped symmetrically to the pressure reservoir 20 such that the vertical dimension increases toward the leeward side (right side in the figure) of the exhaust air.
Further, the storage battery module 12 is fixed to the bottom plate 11 so that the mounting plate 15 is located on the left and right, so that the internal cooling flow passage 14 formed in the module 12 is configured to extend vertically. With this configuration, the pressure loss increases toward the leeward side, so that the amount of air flowing into the external cooling passage 16 from the introduction opening 17 of the bottom plate 11 is made uniform, which further contributes to uniform cooling of the storage battery modules 12.
Further, the wind direction conversion plate 18 of the first embodiment becomes unnecessary.
【００１６】なお、本発明は上記記述及び図面によって
説明した実施の形態に限定されるものではなく、例えば
次のような実施形態も本発明の技術的範囲に含まれ、さ
らに、下記以外にも要旨を逸脱しない範囲内で種々変更
して実施することができる。 （１）冷却ファンは、圧力溜室２０の入口側に設けて
も、排気室３０の出口側に設けてもよい。また、電気自
動車の走行時に冷却風が自然に流入する場合には、冷却
ファンを省略する構成も可能である。The present invention is not limited to the embodiment described above with reference to the drawings. For example, the following embodiments are also included in the technical scope of the present invention. Various changes can be made without departing from the scope of the invention. (1) The cooling fan may be provided on the inlet side of the pressure storage chamber 20 or on the outlet side of the exhaust chamber 30. Further, when cooling air naturally flows during traveling of the electric vehicle, a configuration in which the cooling fan is omitted may be employed.
【００１７】（２）上記実施形態では蓄電池モジュール
１２の内部冷却流路１４を横型に形成したが、これを縦
型に形成してもよく、その場合には、風向変換板１８を
省略することもできる。 （３）蓄電池モジュール１２は上下に複数段を積み上げ
てもよい。 （４）ケース本体１０の上面が開放する等、外部冷却流
路１６からの排気路が十分に確保できるような場合に
は、排気室３０を省略することもできる。(2) In the above embodiment, the internal cooling flow path 14 of the storage battery module 12 is formed in a horizontal shape. However, the internal cooling flow path 14 may be formed in a vertical shape. Can also. (3) A plurality of storage battery modules 12 may be stacked up and down. (4) In a case where the exhaust path from the external cooling passage 16 can be sufficiently ensured, such as when the upper surface of the case body 10 is opened, the exhaust chamber 30 may be omitted.
【図１】 本発明の第１実施形態を示す蓄電池ユニット
の斜視図FIG. 1 is a perspective view of a storage battery unit showing a first embodiment of the present invention.
【図２】 同じく縦断面図FIG. 2 is a longitudinal sectional view of the same.
【図３】 同じく一部破断して示す斜視図FIG. 3 is a perspective view showing the same partially broken away.
【図４】 蓄電池モジュールの斜視図FIG. 4 is a perspective view of a storage battery module.
【図５】 本発明の第２実施形態を示す蓄電池ユニット
の縦断面図FIG. 5 is a longitudinal sectional view of a storage battery unit showing a second embodiment of the present invention.
１０…ケース本体 １２…蓄電池モジュール １３…単位蓄電池 １４…内部冷却流路 １６…外部冷却流路 １７…導入開口 １８…風向変換板 ２０…圧力溜室 ３０…排気室 DESCRIPTION OF SYMBOLS 10 ... Case main body 12 ... Storage battery module 13 ... Unit storage battery 14 ... Internal cooling flow path 16 ... External cooling flow path 17 ... Introducing opening 18 ... Wind direction conversion plate 20 ... Pressure storage chamber 30 ... Exhaust chamber
Claims (4)
収容して空冷するようにしたものにおいて、前記蓄電池
モジュールを相互間に上下に延びる外部冷却流路を形成
するようにしてケース本体内に配置し、そのケース本体
の下面又は上面には冷却風の圧力溜室を形成すると共
に、その圧力溜室から前記外部冷却流路に冷却風を流す
導入開口を形成して前記圧力溜室に供給される冷却風を
前記蓄電池モジュール間の外部冷却流路に上下に流すこ
とを特徴とする蓄電池ユニット。1. A case in which a plurality of storage battery modules are accommodated in a case and cooled by air cooling, wherein the storage battery modules are arranged in a case main body so as to form an external cooling passage extending vertically between the storage battery modules. A cooling air pressure reservoir is formed on the lower surface or upper surface of the case main body, and an inlet opening for flowing cooling air from the pressure reservoir to the external cooling channel is formed to be supplied to the pressure reservoir. A storage battery unit characterized by flowing cooling air vertically through an external cooling channel between the storage battery modules.
風の風下側ほど狭いことを特徴とする請求項１記載の蓄
電池ユニット。2. The storage battery unit according to claim 1, wherein the pressure reservoir is narrower toward a leeward side of cooling air supplied to the inside.
びる内部冷却流路が形成され、前記圧力溜室からの冷却
風が前記内部冷却流路に流されることを特徴とする請求
項１又は２記載の蓄電池ユニット。3. The storage battery module according to claim 1, wherein an internal cooling passage extending in a vertical direction is formed in the storage battery module, and cooling air from the pressure storage chamber flows through the internal cooling passage. The storage battery unit according to the above.
びる内部冷却流路が形成され、前記外部冷却流路には導
入開口から縦方向に流れる冷却風を前記内部冷却流路に
横方向に流すための風向変換板が設けられていることを
特徴とする請求項１又は２記載の蓄電池ユニット。4. An internal cooling passage extending in a lateral direction is formed in the storage battery module, and a cooling air flowing in a vertical direction from an introduction opening flows in the internal cooling passage in the external cooling passage in a lateral direction. The storage battery unit according to claim 1, further comprising a wind direction conversion plate provided for the storage unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10087699A JP2000294302A (en) | 1999-04-08 | 1999-04-08 | Storage battery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10087699A JP2000294302A (en) | 1999-04-08 | 1999-04-08 | Storage battery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000294302A true JP2000294302A (en) | 2000-10-20 |
Family
ID=14285535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10087699A Pending JP2000294302A (en) | 1999-04-08 | 1999-04-08 | Storage battery unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000294302A (en) |
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| JP2002373709A (en) * | 2001-06-15 | 2002-12-26 | Denso Corp | Battery cooling structure |
| KR20030067859A (en) * | 2002-02-08 | 2003-08-19 | 현대자동차주식회사 | Cooling structure for electric automobile |
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|---|---|---|---|---|
| JP2002373709A (en) * | 2001-06-15 | 2002-12-26 | Denso Corp | Battery cooling structure |
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| JP2011119102A (en) * | 2009-12-02 | 2011-06-16 | Honda Motor Co Ltd | Vehicular battery unit |
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