JP2003291655A - Vehicular battery cooling device - Google Patents
Vehicular battery cooling deviceInfo
- Publication number
- JP2003291655A JP2003291655A JP2002096898A JP2002096898A JP2003291655A JP 2003291655 A JP2003291655 A JP 2003291655A JP 2002096898 A JP2002096898 A JP 2002096898A JP 2002096898 A JP2002096898 A JP 2002096898A JP 2003291655 A JP2003291655 A JP 2003291655A
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- storage tank
- hydrogen storage
- cooling
- battery
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 117
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000001257 hydrogen Substances 0.000 claims abstract description 88
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 88
- 239000002737 fuel gas Substances 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 abstract description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 17
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 230000001172 regenerating effect Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水素を燃料とする
車両における二次電池を冷却する車両用電池冷却システ
ムに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle battery cooling system for cooling a secondary battery in a vehicle using hydrogen as a fuel.
【０００２】[0002]
【従来の技術】電動車両またはハイブリッド車両におい
て、駆動用の二次電池が充放電により発熱するため、二
次電池の温度を規定温度以下に冷却する必要がある。2. Description of the Related Art In an electric vehicle or a hybrid vehicle, a secondary battery for driving heats up due to charging and discharging, so it is necessary to cool the temperature of the secondary battery below a specified temperature.
【０００３】このような二次電池冷却システムの従来例
としては、特開２００１−１６７８０４号公報や特開２
００１−１６７８０６号公報記載の技術が知られてい
る。これらの従来技術は、二次電池に吸気ダクトと排気
ダクトとを設け、これらのダクトに配置した吸気ファン
または排気ファンの回転による外気または車室内空気の
流れで二次電池を強制空冷していた。As a conventional example of such a secondary battery cooling system, there are JP-A-2001-167804 and JP-A-2.
The technique described in 001-167806 is known. In these conventional techniques, an intake duct and an exhaust duct are provided in the secondary battery, and the secondary battery is forcibly air-cooled by the flow of outside air or vehicle interior air due to rotation of an intake fan or an exhaust fan arranged in these ducts. .
【０００４】また、燃料電池用の水素吸蔵合金から水素
が放出される際の放出潜熱を冷熱源として、室内空気を
冷却する冷房装置が特開平１０−１４８４１５号公報に
記載されている。Further, Japanese Patent Application Laid-Open No. 10-148415 discloses a cooling device which cools indoor air by using the released latent heat when hydrogen is released from a hydrogen storage alloy for a fuel cell as a cold heat source.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の二次電池冷却システムにおいて、外気で二次電池を
冷却する場合には、二次電池の冷却性能が十分でないと
いう問題点があった。However, in the above-mentioned conventional secondary battery cooling system, when the secondary battery is cooled by the outside air, there is a problem that the cooling performance of the secondary battery is not sufficient.
【０００６】また空気調和装置で温度調整された車室内
空気を使用して二次電池を冷却する場合には、冷却効率
は良いが、空気調和装置を動作させるときに電力を使用
するため、車両の航続距離が短縮するという問題点があ
った。Further, when the secondary battery is cooled by using the cabin air whose temperature is adjusted by the air conditioner, the cooling efficiency is good, but since electric power is used when operating the air conditioner, the vehicle is cooled. However, there was a problem that the cruising range was shortened.
【０００７】特に燃料電池車両では、加速時の電力アシ
ストや回生電力吸収等のために二次電池から大電流を充
放電することが多いため、二次電池が発熱しやすく、二
次電池の温度が上昇すると、回生電力吸収量や加速時電
力アシスト量が制限されるという問題点があった。Particularly in a fuel cell vehicle, since a large current is often charged and discharged from the secondary battery for the purpose of power assist during acceleration, absorption of regenerative power, etc., the secondary battery is likely to generate heat and the temperature of the secondary battery rises. However, there is a problem in that the amount of regenerative power absorbed and the amount of power assist during acceleration are limited when the power rises.
【０００８】以上の問題点に鑑み、本発明の目的は、車
両の航続距離を短縮することなく、効果的に二次電池を
冷却することができる車両用電池冷却システムを提供す
ることである。In view of the above problems, it is an object of the present invention to provide a vehicle battery cooling system capable of effectively cooling the secondary battery without shortening the cruising distance of the vehicle.
【０００９】また本発明の目的は、二次電池温度上昇に
よる回生電力吸収量や加速時電力アシスト量の低下を抑
制することができる車両用電池冷却システムを提供する
ことである。Another object of the present invention is to provide a vehicle battery cooling system capable of suppressing a decrease in the amount of regenerative power absorbed and a decrease in the amount of power assist during acceleration due to a rise in the temperature of the secondary battery.
【００１０】[0010]
【課題を解決するための手段】請求項１記載の発明は、
上記目的を達成するため、水素貯蔵タンクと、二次電池
と、前記水素貯蔵タンクを囲うように配設され冷却風を
前記二次電池に導く冷却風導入ダクトとを備え、前記水
素貯蔵タンクにて発生する潜熱により冷却された空気
を、前記冷却風導入ダクトを介して、前記二次電池に導
くことにより、前記二次電池の冷却を行うことを要旨と
する車両用電池冷却システムである。The invention according to claim 1 is
In order to achieve the above object, a hydrogen storage tank, a secondary battery, and a cooling air introduction duct that is arranged so as to surround the hydrogen storage tank and guides cooling air to the secondary battery are provided in the hydrogen storage tank. The battery cooling system for a vehicle is characterized in that the secondary battery is cooled by guiding the air cooled by the latent heat generated by the cooling air introduction duct to the secondary battery.
【００１１】請求項２記載の発明は、上記目的を達成す
るため、請求項１記載の車両用電池冷却システムにおい
て、前記冷却風導入ダクトと前記二次電池との間に、冷
却ファンを設置したことを要旨とする。According to a second aspect of the invention, in order to achieve the above object, in the vehicle battery cooling system according to the first aspect, a cooling fan is installed between the cooling air introduction duct and the secondary battery. That is the summary.
【００１２】請求項３記載の発明は、上記目的を達成す
るため、請求項１記載の車両用電池冷却システムにおい
て、前記冷却風導入ダクトと前記二次電池との間に、開
閉弁を設置したことを要旨とする。According to a third aspect of the invention, in order to achieve the above object, in the vehicle battery cooling system according to the first aspect, an on-off valve is installed between the cooling air introduction duct and the secondary battery. That is the summary.
【００１３】請求項４記載の発明は、上記目的を達成す
るため、請求項１記載の車両用電池冷却システムにおい
て、前記冷却風導入ダクトと前記二次電池との間に、冷
却ファン及び開閉弁を設置したことを要旨とする。According to a fourth aspect of the present invention, in order to achieve the above object, in the vehicle battery cooling system according to the first aspect, a cooling fan and an on-off valve are provided between the cooling air introduction duct and the secondary battery. The point is that the
【００１４】請求項５記載の発明は、上記目的を達成す
るため、請求項４記載の車両用電池冷却システムにおい
て、前記開閉弁及び前記冷却ファンの動作を前記水素貯
蔵タンクの温度と前記二次電池の温度とに基づいて制御
することを要旨とする。According to a fifth aspect of the present invention, in order to achieve the above object, in the vehicle battery cooling system according to the fourth aspect, the operation of the on-off valve and the cooling fan is controlled by the temperature of the hydrogen storage tank and the secondary temperature. The gist is to control based on the temperature of the battery.
【００１５】請求項６記載の発明は、上記目的を達成す
るため、請求項１乃至請求項５の何れか１項記載の車両
用電池冷却システムにおいて、前記水素貯蔵タンクに放
熱板を設置したことを要旨とする。According to a sixth aspect of the present invention, in order to achieve the above object, in the vehicle battery cooling system according to any one of the first to fifth aspects, a radiator plate is installed in the hydrogen storage tank. Is the gist.
【００１６】請求項７記載の発明は、上記目的を達成す
るため、請求項１乃至請求項５の何れか１項記載の車両
用電池冷却システムにおいて、前記水素貯蔵タンクに螺
旋状の放熱板を設置したことを要旨とする。In order to achieve the above object, the invention according to claim 7 is the battery cooling system for a vehicle according to any one of claims 1 to 5, wherein a spiral heat dissipation plate is provided in the hydrogen storage tank. The point is that it is installed.
【００１７】請求項８記載の発明は、上記目的を達成す
るため、請求項１乃至請求項７の何れか１項記載の車両
用電池冷却システムにおいて、前記水素貯蔵タンクは、
高圧燃料ガスまたは液化燃料ガスを貯蔵することを要旨
とする。In order to achieve the above object, the invention according to claim 8 is the battery cooling system for a vehicle according to any one of claims 1 to 7, wherein the hydrogen storage tank comprises:
The gist is to store high-pressure fuel gas or liquefied fuel gas.
【００１８】[0018]
【発明の効果】請求項１記載の発明によれば、水素貯蔵
タンクから水素ガスを放出する時に発生する潜熱を、車
両の走行風を利用し、二次電池に導き、二次電池を冷却
する構成なので、空気調和装置等により温度調節された
空気を使用した二次電池冷却に比べ、燃費が向上及び、
二次電池を冷却することができ、二次電池の温度異常に
よる出力低下を抑えられる。According to the first aspect of the invention, the latent heat generated when hydrogen gas is released from the hydrogen storage tank is guided to the secondary battery by using the traveling wind of the vehicle to cool the secondary battery. Because of the configuration, compared with secondary battery cooling using air whose temperature is adjusted by an air conditioner, etc., fuel consumption is improved and
The secondary battery can be cooled, and the output reduction due to the abnormal temperature of the secondary battery can be suppressed.
【００１９】請求項２記載の発明によれば、車両停止時
等で、走行風が得られない場合でも、冷却ファンによる
強制空冷で二次電池を冷却することができ、二次電池の
温度異常による出力低下を抑えられると共に、車両停止
時においても水素貯蔵タンク周りの換気も同時に実施で
きる。According to the second aspect of the invention, the secondary battery can be cooled by the forced air cooling by the cooling fan even when the running wind is not obtained when the vehicle is stopped or the like, and the temperature abnormality of the secondary battery occurs. It is possible to suppress the output reduction due to, and to perform ventilation around the hydrogen storage tank at the same time even when the vehicle is stopped.
【００２０】請求項３記載の発明によれば、水素貯蔵タ
ンクの表面温度が二次電池温度より高い場合は、開閉弁
を閉じることで、水素貯蔵タンクへ水素ガスを充填して
発生する熱により二次電池が加熱されることを防止でき
る。According to the third aspect of the present invention, when the surface temperature of the hydrogen storage tank is higher than the secondary battery temperature, by closing the on-off valve, the hydrogen storage tank is filled with hydrogen gas to generate heat. It is possible to prevent the secondary battery from being heated.
【００２１】請求項４記載の発明によれば、冷却ファン
と開閉弁とを同時に備えたので、水素貯蔵タンクの表面
温度が二次電池温度より低い場合には、開閉弁を開いて
冷却ファンを回転させ二次電池の冷却を行い、水素貯蔵
タンクの表面温度が二次電池温度より高い場合は、ファ
ンを逆回転させることにより、水素貯蔵タンクへ水素ガ
スを充填して発生した熱により、二次電池の加熱を防止
しながら、走行風が得られない場合でも、二次電池を冷
却することができるため、二次電池の温度異常による出
力低下を抑えられると共に、水素貯蔵タンク周りの換気
も同時に実施できる。According to the invention of claim 4, since the cooling fan and the on-off valve are provided at the same time, when the surface temperature of the hydrogen storage tank is lower than the secondary battery temperature, the on-off valve is opened to open the cooling fan. When the surface temperature of the hydrogen storage tank is higher than the temperature of the secondary battery by rotating the secondary battery to cool it, by rotating the fan in the reverse direction, the heat generated by filling the hydrogen storage tank with hydrogen gas causes The secondary battery can be cooled even when no running wind is obtained while preventing heating of the secondary battery, so that the output drop due to abnormal temperature of the secondary battery can be suppressed and ventilation around the hydrogen storage tank is also possible. Can be done at the same time.
【００２２】請求項５記載の発明によれば、冷却ファン
と開閉弁を同時に使用し、水素貯蔵タンクと二次電池の
温度により、冷却ファンと開閉弁の動作方法を変えるた
め、水素貯蔵タンクへ水素ガスを充填した時に発生する
熱により、二次電池の加熱を防止でき、二次電池の温度
異常による出力低下を抑えられると共に、水素貯蔵タン
ク周りの換気も同時に実施できる。According to the invention of claim 5, the cooling fan and the on-off valve are used at the same time, and the operating method of the cooling fan and the on-off valve is changed depending on the temperatures of the hydrogen storage tank and the secondary battery. Due to the heat generated when the hydrogen gas is filled, heating of the secondary battery can be prevented, output reduction due to abnormal temperature of the secondary battery can be suppressed, and ventilation around the hydrogen storage tank can be performed at the same time.
【００２３】請求項６記載の発明によれば、水素貯蔵タ
ンクに放熱板を設けるため、水素貯蔵タンク表面から効
率よく潜熱を冷却風に伝達できるようになり、二次電池
の冷却効率を向上させることができる。According to the sixth aspect of the present invention, since the heat radiating plate is provided in the hydrogen storage tank, the latent heat can be efficiently transferred to the cooling air from the surface of the hydrogen storage tank, and the cooling efficiency of the secondary battery is improved. be able to.
【００２４】請求項７記載の発明によれば、水素貯蔵タ
ンクに放熱板を螺旋状にして設けるため、水素貯蔵タン
ク表面から効率よく潜熱を冷却風に伝達できるととも
に、放熱板による水素だまりを発生させずに、水素貯蔵
タンク周りの換気も同時に実施できる。According to the invention of claim 7, since the heat radiation plate is provided in a spiral shape in the hydrogen storage tank, the latent heat can be efficiently transferred from the surface of the hydrogen storage tank to the cooling air, and the hydrogen pool is generated by the heat radiation plate. Without doing so, ventilation around the hydrogen storage tank can be performed at the same time.
【００２５】請求項８記載の発明によれば、タンク内媒
体が水素以外の高圧燃料ガスまたは液化燃料ガスでも、
ガス特性により温度低下に差異が出るが、同様の傾向を
有するため、他の高圧ガスに対しても適用できる。According to the invention described in claim 8, even if the medium in the tank is a high pressure fuel gas or a liquefied fuel gas other than hydrogen,
Although there is a difference in the temperature decrease depending on the gas characteristics, it has the same tendency and can be applied to other high pressure gases.
【００２６】[0026]
【発明の実施の形態】次に図面を参照して、本発明の実
施の形態を詳細に説明する。
〔第一実施形態〕図１は、本発明に係る車両用電池冷却
システムの水素貯蔵タンクと二次電池との位置関係を説
明する図である。同図において、車両のフレーム１１の
上面には、水素ガスを貯蔵する水素貯蔵タンク１０が取
り付けられ、フレーム１１の下面には、加速時の電力ア
シストや回生エネルギーを貯蔵する二次電池１２が取り
付けられる。水素貯蔵タンク１０は、高圧ガスタンクと
して構成してもよいし、水素吸蔵合金を内蔵するタンク
として構成してもよい。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings. [First Embodiment] FIG. 1 is a diagram illustrating a positional relationship between a hydrogen storage tank and a secondary battery of a vehicle battery cooling system according to the present invention. In the figure, a hydrogen storage tank 10 for storing hydrogen gas is attached to an upper surface of a frame 11 of a vehicle, and a secondary battery 12 for storing power assist during acceleration and regenerative energy is attached to a lower surface of the frame 11. To be The hydrogen storage tank 10 may be configured as a high pressure gas tank or may be configured as a tank containing a hydrogen storage alloy.
【００２７】図２は、本発明に係る車両用電池冷却シス
テムの第一実施形態を説明する概略断面図である。本実
施形態では、水素ガスを燃料とする燃料電池車両に本発
明を適用した例を示している。同図において、冷却風導
入ダクト１３は水素貯蔵タンク１０を囲うように、フレ
ーム１１に取り付ける。二次電池１２の冷却は走行風１
４が冷却風導入ダクト１３を介して二次電池１２に冷却
風１５として供給され、二次電池１２内を巡回し、排気
ダクト１７から冷却風排気１６として外部へ排気され
る。尚、詳細は図示しないが、二次電池１２は、複数の
ユニットを直列接続して構成され、各ユニット間は、冷
却風が通り抜けるように冷却チャネルが設けられてい
る。FIG. 2 is a schematic sectional view for explaining the first embodiment of the vehicle battery cooling system according to the present invention. The present embodiment shows an example in which the present invention is applied to a fuel cell vehicle that uses hydrogen gas as a fuel. In the figure, the cooling air introduction duct 13 is attached to the frame 11 so as to surround the hydrogen storage tank 10. Cooling of the secondary battery 12 is performed by the running wind
4 is supplied as cooling air 15 to the secondary battery 12 via the cooling air introduction duct 13, circulates in the secondary battery 12, and is exhausted to the outside as cooling air exhaust 16 from the exhaust duct 17. Although not shown in detail, the secondary battery 12 is configured by connecting a plurality of units in series, and a cooling channel is provided between each unit so that cooling air can pass therethrough.
【００２８】この燃料電池車両の動作は、以下の通りで
ある。The operation of this fuel cell vehicle is as follows.
【００２９】１．水素貯蔵タンク１０内の水素ガスを図
示しない燃料電池へ供給する。この時の水素貯蔵タンク
１０からの水素放出量に応じて、水素が気体として放出
される際の潜熱により、水素貯蔵タンク１０の表面温度
が低下して行く。1. The hydrogen gas in the hydrogen storage tank 10 is supplied to a fuel cell (not shown). Depending on the amount of hydrogen released from the hydrogen storage tank 10 at this time, the surface temperature of the hydrogen storage tank 10 decreases due to the latent heat when hydrogen is released as a gas.
【００３０】２．燃料電池では、水素ガスと図示しない
空気供給源からの空気ガスを用いて直流電力を発電させ
る。2. In the fuel cell, DC power is generated using hydrogen gas and air gas from an air supply source (not shown).
【００３１】３．燃料電池にて発電された直流電力は図
示しない電力ケーブルを通して図示しないＤＣ／ＡＣイ
ンバータへ供給される。3. The DC power generated by the fuel cell is supplied to a DC / AC inverter (not shown) through a power cable (not shown).
【００３２】４．二次電池１２の電力はＤＣ／ＤＣコン
バータにて電圧調整され、ＤＣ／ＡＣインバータへ供給
される。4. The voltage of the electric power of the secondary battery 12 is adjusted by the DC / DC converter and supplied to the DC / AC inverter.
【００３３】５．ＤＣ／ＡＣインバータでは、燃料電池
にて発電された直流電力と二次電池から供給された直流
電力を交流電力に変換する。5. The DC / AC inverter converts DC power generated by the fuel cell and DC power supplied from the secondary battery into AC power.
【００３４】６．ＤＣ／ＡＣインバータにて作成された
交流電力は、電力ケーブルを通して、図示しない駆動モ
ータへ供給される。6. The AC power generated by the DC / AC inverter is supplied to a drive motor (not shown) through a power cable.
【００３５】７．駆動モータでは、供給された交流電力
を用いて車両を駆動させる。7. The drive motor drives the vehicle using the supplied AC power.
【００３６】二次電池１２の温度は、二次電池１２の充
放電（加速時の電力アシストでは放電、回生時の電力吸
収では充電）を行うことにより上昇していく。The temperature of the secondary battery 12 rises by charging and discharging the secondary battery 12 (discharging for power assist during acceleration, charging for power absorption during regeneration).
【００３７】二次電池１２の温度上昇時は車両として
は、水素貯蔵タンク１０から、水素を取り出し、燃料電
池にて発電して走行しており、水素貯蔵タンク１０は潜
熱により表面温度が低下している。その走行風１４は、
冷却風導入ダクト１３を介して、二次電池１２に導入す
ることにより、水素貯蔵タンク１０の表面の冷気を冷却
風１５として、二次電池１２を冷却し、二次電池１２内
を冷却循環させた冷却風は、排気ダクト１７から冷却風
排気１６として、外部へ排気する。When the temperature of the secondary battery 12 rises, the vehicle is running by taking out hydrogen from the hydrogen storage tank 10 and generating electricity with the fuel cell, and the surface temperature of the hydrogen storage tank 10 decreases due to latent heat. ing. The running wind 14
By introducing the cooling air into the secondary battery 12 via the cooling air introduction duct 13, the cold air on the surface of the hydrogen storage tank 10 is used as the cooling air 15 to cool the secondary battery 12 and circulate the inside of the secondary battery 12 for cooling and circulation. The cooling air is exhausted from the exhaust duct 17 to the outside as the cooling air exhaust 16.
【００３８】〔第二実施形態〕図３は、本発明に係る車
両用電池冷却システムの第二実施形態を説明する概略断
面図である。本実施形態と第一実施形態との異なる部分
のみ説明し、共通の部分は説明を省略する。[Second Embodiment] FIG. 3 is a schematic sectional view for explaining a second embodiment of the vehicle battery cooling system according to the present invention. Only different parts between the present embodiment and the first embodiment will be described, and description of common parts will be omitted.
【００３９】図３において、冷却風導入ダクト１３と二
次電池１２との間に冷却ファン１８が設置されている。
その他の構成は、第一実施形態と同様である。冷却ファ
ン１８は、特に限定されないが、例えば図示しないコン
トローラからの制御信号により回転制御される電動モー
タにより駆動される。コントローラは、図示しない車速
センサから車速信号、外気温センサから外気温度、二次
電池温度センサから二次電池温度をそれぞれ入力するよ
うになっている。そしてコントローラは、車速と外気温
度と二次電池温度とを変数とするマップを参照して、冷
却ファン１８を駆動するか否かの判断、或いは冷却ファ
ンの停止を含む回転駆動速度を判断して、前記電動モー
タの回転を制御する。In FIG. 3, a cooling fan 18 is installed between the cooling air introduction duct 13 and the secondary battery 12.
Other configurations are similar to those of the first embodiment. Although not particularly limited, the cooling fan 18 is driven by, for example, an electric motor whose rotation is controlled by a control signal from a controller (not shown). The controller inputs a vehicle speed signal from a vehicle speed sensor (not shown), an outside air temperature from an outside air temperature sensor, and a secondary battery temperature from a secondary battery temperature sensor. Then, the controller refers to a map having the vehicle speed, the outside air temperature, and the secondary battery temperature as variables, and determines whether or not to drive the cooling fan 18, or determines the rotational drive speed including the stop of the cooling fan. , Controlling the rotation of the electric motor.
【００４０】本実施形態では、冷却風導入ダクト１３と
二次電池１２との間に冷却ファン１８を設置したので、
低速走行時等で走行風１４が得られない様な場合でも、
冷却ファン１８を回転駆動することにより、二次電池１
２へ冷却風１５の供給が可能となり、二次電池１２の低
速時の放熱性能が向上する。In this embodiment, since the cooling fan 18 is installed between the cooling air introduction duct 13 and the secondary battery 12,
Even if you can not get the running wind 14 at low speed,
By driving the cooling fan 18 to rotate, the secondary battery 1
The cooling air 15 can be supplied to the secondary battery 2, and the heat dissipation performance of the secondary battery 12 at low speed is improved.
【００４１】〔第三実施形態〕図４は、本発明に係る車
両用電池冷却システムの第三実施形態を説明する概略断
面図である。本実施形態と第一実施形態との異なる部分
のみ説明し、共通の部分は説明を省略する。[Third Embodiment] FIG. 4 is a schematic sectional view for explaining a third embodiment of the vehicle battery cooling system according to the present invention. Only different parts between the present embodiment and the first embodiment will be described, and description of common parts will be omitted.
【００４２】図４において、冷却風導入ダクト１３と二
次電池１２との間に電磁式開閉弁１９が設置されてい
る。その他の構成は、第一実施形態と同様である。電磁
式開閉弁１９は、図示しないコントローラからの制御信
号により開閉制御されるものである。コントローラは、
特に限定されないが、図示しない水素貯蔵タンク温度セ
ンサ及び二次電池温度センサから、水素貯蔵タンク温
度、二次電池温度をそれぞれ入力するようになってい
る。そしてコントローラは、水素貯蔵タンク１０へ水素
を充填した直後等の水素貯蔵タンク温度が二次電池温度
より高い場合には、電磁式開閉弁１９を閉じるように制
御する。逆に、水素貯蔵タンク温度が二次電池温度より
低い場合には、電磁式開閉弁１９を閉じるように制御す
る。In FIG. 4, an electromagnetic on-off valve 19 is installed between the cooling air introduction duct 13 and the secondary battery 12. Other configurations are similar to those of the first embodiment. The electromagnetic on-off valve 19 is opened / closed by a control signal from a controller (not shown). The controller is
Although not particularly limited, the hydrogen storage tank temperature sensor and the secondary battery temperature sensor (not shown) are used to input the hydrogen storage tank temperature and the secondary battery temperature, respectively. Then, the controller controls the electromagnetic on-off valve 19 to be closed when the temperature of the hydrogen storage tank is higher than the temperature of the secondary battery immediately after the hydrogen storage tank 10 is filled with hydrogen. On the contrary, when the hydrogen storage tank temperature is lower than the secondary battery temperature, the electromagnetic on-off valve 19 is controlled to be closed.
【００４３】本実施形態では、冷却風導入ダクト１３と
二次電池１２との間に電磁式開閉弁１９を設置したの
で、水素貯蔵タンク１０へ水素を充填した直後等の二次
電池１２より、水素貯蔵タンク１０の温度が高い場合
に、電磁式開閉弁１９を閉じることにより、二次電池１
２を暖めることを防止する。また、二次電池１２より、
水素貯蔵タンク１０の温度が低い場合には、電磁式開閉
弁１９を開くことにより、二次電池１２の冷却を行うこ
とができる。In this embodiment, since the electromagnetic on-off valve 19 is installed between the cooling air introduction duct 13 and the secondary battery 12, the secondary battery 12 immediately after the hydrogen storage tank 10 is filled with hydrogen, When the temperature of the hydrogen storage tank 10 is high, the secondary battery 1 is closed by closing the electromagnetic on-off valve 19.
Prevents warming 2. In addition, from the secondary battery 12,
When the temperature of the hydrogen storage tank 10 is low, the secondary battery 12 can be cooled by opening the electromagnetic on-off valve 19.
【００４４】〔第四実施形態〕図５は、本発明に係る車
両用電池冷却システムの第四実施形態を説明する概略断
面図である。本実施形態と第一実施形態との異なる部分
のみ説明し、共通の部分は説明を省略する。[Fourth Embodiment] FIG. 5 is a schematic sectional view for explaining a fourth embodiment of the vehicle battery cooling system according to the present invention. Only different parts between the present embodiment and the first embodiment will be described, and description of common parts will be omitted.
【００４５】図５に示すように、本実施形態において
は、冷却風導入ダクト１３と二次電池１２の間に冷却フ
ァン１８と電磁式開閉弁１９とを直列に設置することで
構成される。その他の構成は、第一実施形態と同様であ
る。冷却ファン１８と電磁式開閉弁１９は、図示しない
コントローラからの制御信号によりそれぞれ制御される
ものである。コントローラは、特に限定されないが、図
示しない水素貯蔵タンク温度センサ及び二次電池温度セ
ンサから、水素貯蔵タンク温度、二次電池温度をそれぞ
れ入力するようになっている。そしてコントローラは、
水素貯蔵タンク１０へ水素を充填した直後等の水素貯蔵
タンク温度が二次電池温度より高い場合には、電磁式開
閉弁１９を閉じるように制御する。逆に、水素貯蔵タン
ク温度が二次電池温度より低い場合には、電磁式開閉弁
１９を閉じるように制御する。As shown in FIG. 5, in this embodiment, a cooling fan 18 and an electromagnetic on-off valve 19 are installed in series between the cooling air introduction duct 13 and the secondary battery 12. Other configurations are similar to those of the first embodiment. The cooling fan 18 and the electromagnetic on-off valve 19 are each controlled by a control signal from a controller (not shown). Although not particularly limited, the controller inputs the hydrogen storage tank temperature and the secondary battery temperature from a hydrogen storage tank temperature sensor and a secondary battery temperature sensor (not shown). And the controller
When the temperature of the hydrogen storage tank is higher than the secondary battery temperature immediately after the hydrogen storage tank 10 is filled with hydrogen, the electromagnetic on-off valve 19 is controlled to be closed. On the contrary, when the hydrogen storage tank temperature is lower than the secondary battery temperature, the electromagnetic on-off valve 19 is controlled to be closed.
【００４６】また、コントローラには、図示しない車速
センサから車速信号、外気温センサから外気温度、二次
電池温度センサから二次電池温度をそれぞれ入力するよ
うになっている。そしてコントローラは、電磁式開閉弁
１９を開いている際に、車速と外気温度と二次電池温度
とを変数とするマップを参照して、冷却ファン１８を駆
動するか否かの判断、或いは冷却ファンの停止を含む回
転駆動速度を判断して、前記電動モータの回転を制御す
る。Further, a vehicle speed signal (not shown), an outside air temperature from an outside air temperature sensor, and a secondary battery temperature from a secondary battery temperature sensor are input to the controller. Then, the controller refers to a map having the vehicle speed, the outside air temperature, and the secondary battery temperature as variables while the electromagnetic on-off valve 19 is open, and determines whether or not to drive the cooling fan 18, or performs cooling. The rotation driving speed including the stop of the fan is determined to control the rotation of the electric motor.
【００４７】本実施形態では、冷却風導入ダクト１３と
二次電池１２の間に冷却ファン１８と電磁式開閉弁１９
を設置した。このことにより、低速走行等で走行風１４
が得られない様なときに、二次電池１２の温度より水素
貯蔵タンク１０の温度が低い場合には、電磁式開閉弁１
９を開き、冷却ファン１８により、二次電池１２へ冷却
風１５の供給が可能となる。また、水素貯蔵タンク１０
へ水素を充填した直後等の二次電池１２より、水素貯蔵
タンク１０の温度が高い場合に、電磁式開閉弁１９を閉
じることにより、二次電池１２を暖めることを防止す
る。また、二次電池１２より、水素貯蔵タンク１０の温
度が高い場合には、電磁式開閉弁１９を開き、冷却ファ
ン１８を逆回転させることにより、冷却風排気から外気
を吸入し、二次電池１２内部を通って、水素貯蔵タンク
を冷却することもできる。In this embodiment, the cooling fan 18 and the electromagnetic on-off valve 19 are provided between the cooling air introduction duct 13 and the secondary battery 12.
Was installed. As a result, the traveling wind 14
When the temperature of the hydrogen storage tank 10 is lower than the temperature of the secondary battery 12 when the temperature cannot be obtained, the electromagnetic on-off valve 1
9, the cooling fan 18 can supply the cooling air 15 to the secondary battery 12. Also, the hydrogen storage tank 10
When the temperature of the hydrogen storage tank 10 is higher than that of the secondary battery 12 immediately after being filled with hydrogen, the electromagnetic on-off valve 19 is closed to prevent the secondary battery 12 from being warmed. Further, when the temperature of the hydrogen storage tank 10 is higher than that of the secondary battery 12, the electromagnetic on-off valve 19 is opened and the cooling fan 18 is rotated in the reverse direction so that the outside air is sucked from the cooling air exhaust and the secondary battery is discharged. It is also possible to cool the hydrogen storage tank through 12 inside.
【００４８】〔第五実施形態〕図６は、本発明に係る車
両用電池冷却システムの第五実施形態を説明する概略図
である。本実施形態と第一実施形態との異なる部分のみ
説明し、共通の部分は説明を省略する。[Fifth Embodiment] FIG. 6 is a schematic view for explaining a fifth embodiment of the vehicle battery cooling system according to the present invention. Only different parts between the present embodiment and the first embodiment will be described, and description of common parts will be omitted.
【００４９】図６において、水素貯蔵タンク１０の軸方
向に沿って、水素貯蔵タンク１０の表面に４枚の放熱板
１９を設置している。尚、放熱板の数は、図示した４枚
に限らず何枚でもよい。また放熱板を設置する方向もタ
ンク軸方向に限らず、タンク外周方向（軸方向に垂直な
方向）としてもよい。In FIG. 6, four heat radiation plates 19 are installed on the surface of the hydrogen storage tank 10 along the axial direction of the hydrogen storage tank 10. The number of heat radiation plates is not limited to four as shown in the figure, and any number may be used. The direction in which the heat sink is installed is not limited to the axial direction of the tank, and may be the outer peripheral direction of the tank (direction perpendicular to the axial direction).
【００５０】本実施形態では、水素貯蔵タンク１０に放
熱板１９を取り付けることにより、水素貯蔵タンク１０
の表面積を拡大し、燃料電池での発電目的による、水素
タンク１０から水素を放出で発生した潜熱を、効率的に
冷却風の伝達することができる。In the present embodiment, the heat radiation plate 19 is attached to the hydrogen storage tank 10 so that the hydrogen storage tank 10
By increasing the surface area of the fuel cell, the latent heat generated by releasing hydrogen from the hydrogen tank 10 can be efficiently transmitted by the cooling air for the purpose of power generation in the fuel cell.
【００５１】〔第六実施形態〕図７は、本発明に係る車
両用電池冷却システムの第六実施形態を説明する概略図
である。本実施形態と第一実施形態との異なる部分のみ
説明し、共通の部分は説明を省略する。[Sixth Embodiment] FIG. 7 is a schematic view for explaining a sixth embodiment of the vehicle battery cooling system according to the present invention. Only different parts between the present embodiment and the first embodiment will be described, and description of common parts will be omitted.
【００５２】図７において、水素貯蔵タンク１０の表面
に螺旋状放熱板２０を設置する。In FIG. 7, a spiral radiator plate 20 is installed on the surface of the hydrogen storage tank 10.
【００５３】本実施形態では、水素貯蔵タンク１０に螺
旋状放熱板２０を取り付けることにより、水素貯蔵タン
ク１０の表面積を拡大し、燃料電池での発電目的によ
る、水素タンク１０から水素を放出で発生した潜熱を、
効率的に冷却風に伝達することができると共に、図６の
第五実施形態に対して冷却板を螺旋構造にすることによ
り、空気抵抗が減少し冷却風が通りやすくなる。In this embodiment, the surface area of the hydrogen storage tank 10 is increased by attaching the spiral heat dissipation plate 20 to the hydrogen storage tank 10, and hydrogen is generated from the hydrogen tank 10 for the purpose of power generation in the fuel cell. The latent heat
The cooling air can be efficiently transmitted, and the cooling plate has a spiral structure as compared with the fifth embodiment of FIG. 6, whereby air resistance is reduced and the cooling air can easily pass.
【００５４】上記第一〜第六実施形態では水素ガスを用
いて説明して来たが、水素ガスに限定した物ではなく、
他の代替燃料であるＣＮＧやプロパンガス等他の燃料と
して用いられる高圧ガスにおいても、同様の特性を示す
ため、同様の効果が得られる。また、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、本発明を限定する為に記載されたものでは
ない。実施形態が変わっても同一機能を有した物であれ
ば、本発明の効果を得ることができる。Although the first to sixth embodiments have been described using hydrogen gas, the present invention is not limited to hydrogen gas.
High-pressure gases used as other fuels such as CNG and propane gas, which are other alternative fuels, also exhibit similar characteristics, and therefore similar effects can be obtained. Further, the embodiments described above are described to facilitate the understanding of the present invention, and are not described to limit the present invention. Even if the embodiment is changed, the effect of the present invention can be obtained as long as it has the same function.
【図１】水素貯蔵タンクと二次電池との位置関係を説明
する図である。FIG. 1 is a diagram illustrating a positional relationship between a hydrogen storage tank and a secondary battery.
【図２】本発明に係る車両用電池冷却システムの第一実
施形態の構成を示す構成図である。FIG. 2 is a configuration diagram showing a configuration of a first embodiment of a vehicle battery cooling system according to the present invention.
【図３】本発明に係る車両用電池冷却システムの第二実
施形態の構成を示す構成図である。FIG. 3 is a configuration diagram showing a configuration of a second embodiment of a vehicle battery cooling system according to the present invention.
【図４】本発明に係る車両用電池冷却システムの第三実
施形態の構成を示す構成図である。FIG. 4 is a configuration diagram showing a configuration of a third embodiment of a vehicle battery cooling system according to the present invention.
【図５】本発明に係る車両用電池冷却システムの第四実
施形態の構成を示す構成図である。FIG. 5 is a configuration diagram showing a configuration of a fourth embodiment of the vehicle battery cooling system according to the present invention.
【図６】本発明に係る車両用電池冷却システムの第五実
施形態の構成を示す構成図である。FIG. 6 is a configuration diagram showing a configuration of a fifth embodiment of a vehicle battery cooling system according to the present invention.
【図７】本発明に係る車両用電池冷却システムの第六実
施形態の構成を示す構成図である。FIG. 7 is a configuration diagram showing a configuration of a sixth embodiment of a vehicle battery cooling system according to the present invention.
１０…水素貯蔵タンク １１…フレーム １２…二次電池 １３…冷却風導入ダクト １４…走行風 １５…冷却風 １６…排気冷却風 １７…排気ダクト １８…冷却ファン １９…電磁開閉弁 ２０…放熱板 ２１…螺旋状放熱板 10 ... Hydrogen storage tank 11 ... Frame 12 ... Secondary battery 13 ... Cooling air introduction duct 14 ... Running wind 15 ... Cooling wind 16 ... Exhaust cooling air 17 ... Exhaust duct 18 ... Cooling fan 19 ... Solenoid valve 20 ... Heat sink 21 ... Spiral heat sink
Claims (8)
素貯蔵タンクを囲うように配設され冷却風を前記二次電
池に導く冷却風導入ダクトとを備え、 前記水素貯蔵タンクにて発生する潜熱により冷却された
空気を、前記冷却風導入ダクトを介して、前記二次電池
に導くことにより、前記二次電池の冷却を行うことを特
徴とする車両用電池冷却システム。1. A hydrogen storage tank, a secondary battery, and a cooling air introduction duct that surrounds the hydrogen storage tank and guides cooling air to the secondary battery. The battery cooling system for a vehicle, wherein the secondary battery is cooled by guiding the air cooled by the latent heat to the secondary battery through the cooling air introduction duct.
の間に、冷却ファンを設置したことを特徴とする請求項
１記載の車両用電池冷却システム。2. The battery cooling system for a vehicle according to claim 1, wherein a cooling fan is installed between the cooling air introduction duct and the secondary battery.
の間に、開閉弁を設置したことを特徴とする請求項１記
載の車両用電池冷却システム。3. The vehicle battery cooling system according to claim 1, further comprising an opening / closing valve installed between the cooling air introduction duct and the secondary battery.
の間に、冷却ファン及び開閉弁を設置したことを特徴と
する請求項１記載の車両用電池冷却システム。4. The battery cooling system for a vehicle according to claim 1, wherein a cooling fan and an on-off valve are installed between the cooling air introduction duct and the secondary battery.
前記水素貯蔵タンクの温度と前記二次電池の温度とに基
づいて制御することを特徴とする請求項４記載の車両用
電池冷却システム。5. The vehicle battery cooling system according to claim 4, wherein operations of the on-off valve and the cooling fan are controlled based on a temperature of the hydrogen storage tank and a temperature of the secondary battery.
ことを特徴とする請求項１乃至請求項５の何れか１項記
載の車両用電池冷却システム。6. The battery cooling system for a vehicle according to claim 1, wherein a heat radiating plate is installed in the hydrogen storage tank.
設置したことを特徴とする請求項１乃至請求項５の何れ
か１項記載の車両用電池冷却システム。7. The battery cooling system for a vehicle according to claim 1, wherein a spiral heat dissipation plate is installed in the hydrogen storage tank.
たは液化燃料ガスを貯蔵することを特徴とする請求項１
乃至請求項７の何れか１項記載の車両用電池冷却システ
ム。8. The hydrogen storage tank stores high-pressure fuel gas or liquefied fuel gas.
The battery cooling system for a vehicle according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002096898A JP3912162B2 (en) | 2002-03-29 | 2002-03-29 | Battery cooling system for vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002096898A JP3912162B2 (en) | 2002-03-29 | 2002-03-29 | Battery cooling system for vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003291655A true JP2003291655A (en) | 2003-10-15 |
| JP3912162B2 JP3912162B2 (en) | 2007-05-09 |
Family
ID=29239715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002096898A Expired - Fee Related JP3912162B2 (en) | 2002-03-29 | 2002-03-29 | Battery cooling system for vehicles |
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| Country | Link |
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| JP (1) | JP3912162B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005044551A (en) * | 2003-07-24 | 2005-02-17 | Toyota Motor Corp | Cooling system and vehicle equipped with cooling system |
| US7556110B2 (en) | 2005-09-22 | 2009-07-07 | Honda Motor Co., Ltd. | Vehicle mounted with electric storage apparatus |
| CN112803040A (en) * | 2021-04-06 | 2021-05-14 | 河南氢枫能源技术有限公司 | Hydrogen storage cylinder group for hydrogen fuel cell vehicle |
| US11794562B2 (en) | 2020-10-06 | 2023-10-24 | Volvo Truck Corporation | Hydrogen tank and traction battery arrangement |
-
2002
- 2002-03-29 JP JP2002096898A patent/JP3912162B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005044551A (en) * | 2003-07-24 | 2005-02-17 | Toyota Motor Corp | Cooling system and vehicle equipped with cooling system |
| JP4590833B2 (en) * | 2003-07-24 | 2010-12-01 | トヨタ自動車株式会社 | Mobile body with cooling system |
| US7556110B2 (en) | 2005-09-22 | 2009-07-07 | Honda Motor Co., Ltd. | Vehicle mounted with electric storage apparatus |
| US11794562B2 (en) | 2020-10-06 | 2023-10-24 | Volvo Truck Corporation | Hydrogen tank and traction battery arrangement |
| CN112803040A (en) * | 2021-04-06 | 2021-05-14 | 河南氢枫能源技术有限公司 | Hydrogen storage cylinder group for hydrogen fuel cell vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3912162B2 (en) | 2007-05-09 |
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