JP3788507B2 - Car - Google Patents
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- JP3788507B2 JP3788507B2 JP2001387462A JP2001387462A JP3788507B2 JP 3788507 B2 JP3788507 B2 JP 3788507B2 JP 2001387462 A JP2001387462 A JP 2001387462A JP 2001387462 A JP2001387462 A JP 2001387462A JP 3788507 B2 JP3788507 B2 JP 3788507B2
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- 238000007599 discharging Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- 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
- Secondary Cells (AREA)
- Hybrid Electric Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Battery Mounting, Suspending (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は自動車に関する。
【0002】
【従来の技術】
近年、自動車に対する省エネルギー化の要求は大きく、エンジンと蓄電池とを組み合わせた、いわゆるハイブリッドカーが出現している。ハイブリッドカーには蓄電池が搭載されており、発進時のエンジンパワーアシスト、アイドリング停止、減速時のエネルギー回収等を行っている。
自動車に求められる機能は、安全性、快適性である。このため、自動車内の居住空間を最大となすような設計がなされているが、デッドスペースも多く、例えば座席の下部などは単なる空き空間である。
【0003】
【発明が解決しようとする課題】
ハイブリッドカーには、従来のエンジンに加え、蓄電池、電気モーター、制御回路等が搭載されるため、自動車内の居住空間が狭くなってしまうという問題がある。また、ハイブリッドカーの蓄電池は大電流での充放電が繰り返されるため、発熱量が大きく高温になり易いので、ファンなどの冷却装置を取り付けることを余儀なくされる。その結果、冷却装置の搭載空間確保による居住空間の減少、重量増加、コストアップ等の問題も生じている。
【0004】
一方、エンジンのみの従来型自動車では、蓄電池はエンジンルーム内に搭載されている。エンジンルーム内は、外気温度に加え、エンジンからの発熱もあるために高温環境に置かれる。高温環境下では蓄電池は短寿命になってしまうが、蓄電池用の冷却装置を設けるとコストアップにつながるという問題がある。
【0005】
本発明は上記のような課題を解決するためになしたものであり、その目的は、居住空間の低減による快適性を損なうことのないハイブリッドカーや従来型自動車を提供するとともに、蓄電池が高温になることを防止し得る自動車を提供することである。
【0006】
【課題を解決するための手段】
本発明は、蓄電池を座席に一体に保持させることで居住空間内のデッドスペースを少なくし、持って容積効率を最適化するとともに、蓄電池の効率的な冷却機構を採用することにより、蓄電池寿命の改善を図るものである。
【0007】
すなわち、本願第一の発明は、蓄電池が座席に一体に保持され、座席を前後にスライドさせると、蓄電池もそれに伴ってスライドするよう構成されたことを特徴とする自動車である。「蓄電池が座席に一体に保持」する態様としては、座席に露出状態で固定する方法や、座席の下に箱型の蓄電池収納部を固定し、そこに蓄電池を収納したりする方法があるが、いずれにしろ、座席を前後にスライドさせると、蓄電池もそれに伴ってスライドするよう構成されていることを特徴とする。特開平11−99832や特開2001−138753には、座席の下に蓄電池が配された自動車が開示されているが、これらにおいては、蓄電池は自動車の座席取付け面上に搭載され、その上部に座席が配されているのみで、座席が前後にスライドしても蓄電池はスライドしない構成であることに留意されるべきである。第一の発明によれば、蓄電池が座席に一体に保持され、座席を前後にスライドさせると、蓄電池もそれに伴ってスライドするよう構成されているので、居住室内が有効に利用されるので、居住性が快適に保たれる。
【0009】
また、第一の発明において、蓄電池底面と自動車の座席取付け面との間に空隙部を形成すれば、蓄電池下面を空気が流通可能になることから、冷却効率は飛躍的に向上する。なお、蓄電池底面とは、露出状態で座席に一体に保持された蓄電池の底面のみならず、座席に固定された蓄電池収納部に蓄電池が収納されている場合は蓄電池収納部の底面をも意味している。
【0010】
本願第二の発明は、第一の発明において、蓄電池が座席に固定された蓄電池収納部に収納され、蓄電池収納部に自動車室内の空気もしくは室外の空気を吸入し、室外に排気する機構が設けられていることを特徴とする。この第二の発明によれば、蓄電池が座席に固定された蓄電池収納部に収納されるので蓄電池が露出している場合に比べて室内の美観が向上する。また安全性が確保されるとともに蓄電池性能低下が防止される。すなわち、蓄電池の使用状態によっては、蓄電池から水素、酸素、硫化水素等のガスが発生する場合があるが、これらを車外に放出することができるので安全である。さらに、蓄電池は極端な低温環境や高温環境では性能が十分に発揮できないが、室内空気は冷暖房により常に適度な温度に保たれていることから、蓄電池を常に最適温度に保つことができるので、蓄電池の短寿命化を防止できる。室内の空気を吸入し室外に排気する場合にはファン等の吸引手段ないし排出手段が必要であるが、室外の空気を吸入し室外に排気する場合には、走行による自然換気を利用することも出来る。
【0011】
本願発明の蓄電池が弁制御形鉛蓄電池であれば、弁制御形鉛蓄電池は電解液が非流動化されているために、どのような姿勢に置かれても電解液が漏れることはない。また、蓄電池からのガス発生量も少ないことを特徴としている。従来から使用されている流動電解液を有する鉛蓄電池は、液漏れの危険性があり、自動車室内で使用するには適さない。
【0012】
また、ハイブリッドカーのように大電流での充放電が繰り返される用途においては、蓄電池自身が発熱してしまう。このため、第一、又は二の発明において、弁制御形鉛蓄電池に温度センサが取り付け、センサ検出温度に基づいて充放電制御が行えば、温度センサにより蓄電池温度を検出し、温度が高い場合には電流を絞る等の措置を行うことで発熱量を操作することで、常に適正な状態で蓄電池を使用することができる。
【0013】
本願第三の発明は、第一、又は二の発明において、弁制御形鉛蓄電池に排気チューブが取り付けられており、排気チューブの先端は室外におかれることを特徴としている。この発明によれば、蓄電池から排出されたガスが直接室外に排気されるので、より安全性が確保される。蓄電池の使用形態が大きな充放電をされるものではなく、自動車用電気部品の補機駆動のような緩やかなものであれば、発熱やガス発生の問題はほとんどおこらない。そのような場合は、蓄電池収納部を用いずに、蓄電池を露出状態で座席に固定してもかまわない。その場合、蓄電池収納部が不要でコスト上昇を抑えられる。
【0014】
このように本願発明により、自動車の容積効率の最適化に加え、蓄電池の性能を向上させることが可能になった。
【0015】
【発明の実施の形態】
通常の自動車の座席は、座席構造部材の上に座席クッション部材を装着して作られる。座席は前後移動用レールの上に置かれ、座席取付け面である自動車のシャーシに固定される。座席に取り付けられたレバーを操作することで、座席を前後に移動させることができるようになっている。
【0016】
本発明にかかる自動車の座席部の外観の一例を図1に、その断面図を図2に示す。蓄電池または蓄電池が収納された蓄電池収納容器は座面の下部に敷設される。このとき蓄電池底面又は蓄電池収納容器底面と座席取付け面との間には空隙が存在している。蓄電池または蓄電池収納容器には、図示しない電気ケーブルや排気チューブが取り付けられている。
【0017】
図3は、室内空気取り入れ型の蓄電池収納容器の構造を示した図である。容器内には蓄電池が置かれている。容器前面には室内空気を容器内に吸入するためのファンが、容器下面には排気チューブが取り付けられている。ファンから取り入れられた室内空気は、容器内を循環し、排気チューブから室外に排気される。ファンの位置は容器前面でなくともよく、例えば排気チューブ側から吸気しても同様の効果が得られる。蓄電池には正負極電気ケーブルが取り付けられ、このケーブルは別の個所にある機器に接続されている。また、蓄電池には温度センサが取り付けられており、この検出結果に基づいて蓄電池の制御が行われる。
【0018】
図4は、室外空気取り入れ型の蓄電池収納容器の構造を示した図である。容器前下部には吸気チューブが取り付けられている。吸気チューブは室外へとつながっており、ここから取り入れられた空気は、容器内を循環して排気チューブから室外へと排気される。空気を循環させるために、吸気チューブ入り口端部に送風装置をおいたり、排気チューブ出口端部に吸気装置をおいたり、またはこれらを組み合わせたりといった方法を用いることができる。例えば、電池温度が最適作動温度よりも低い場合には、エンジンルーム内の温風を送り込むことで電池を昇温することが可能である。一方、電池温度が最適作動温度よりも高い場合には、エアコンの冷風を送り込むことで、急速冷却が可能になる。この収納容器は、自動車室内に対して密閉構造であるので、万一、蓄電池からガスが発生した場合であっても安全に室外に排出させることができる。
【0019】
図5は、本発明で使用する弁制御形鉛蓄電池の一例を示したものである。蓄電池には、温度センサおよび排気チューブが取り付けられている。蓄電池単独で座席に取り付けられる際には、排気チューブが必要となるが、収納容器内に入れられる場合には容器が排気機能を有しているため特に必要ではない。蓄電池は電槽部分にふたを取り付けて作られるが、ふた部分を密封し排気チューブ部分のみを開口させておくことで、電池から排出されるガスをこの部分に集中させることができる。排気チューブの端部を車外に出しておくことで、蓄電池から発生したガスを安全に車外に排出できる。
【0020】
【実施例】
本発明の自動車を評価を行った。自動車は3000CCセダンで、停車中にアイドリングストップを行うハイブリッド式である。蓄電池は、36V、20Ahの弁制御形鉛蓄電池を用いた。図6は本発明自動車の模式図である。座席には蓄電池収納容器が固定されており、室外空気吸入機構が取付けてある。外気は、外気流入チューブに強制的に送り込まれ、収納容器内を循環した後、排気チューブから車外へと排出される。蓄電池は電気ケーブルにより蓄電池制御機器と接続されている。
【0021】
この自動車を実際に走行させたときに、蓄電池に流れる電流を図7に示した。通常走行中に蓄電池に充電される電流は小さい。車両が停止するとエンジンのアイドリングが停止し、その時にエアコン等の電気機器の駆動電気エネルギーは蓄電池から供給され、放電電流が流れる。再度走行を始める際に、エンジンの再始動が行われ、大きな始動電流が流れる。走行を始めると、アイドリング停止中に放電した電気エネルギーを回復するために、蓄電池には充電電流が流れ始める。蓄電池が満充電状態に近づくと電流は次第に減少する。渋滞道路などを走行すると、これらの繰り返しが頻繁に行われるため、蓄電池には充放電が繰り返されることになる。このため、蓄電池自身が発熱し、蓄電池温度が次第に上昇していく。蓄電池は高温にさらされるとその寿命特性が低下してしまうため、できるだけ高温にならないようにするのが好ましい。
【0022】
外気温20℃の時に渋滞道路走行を8時間行い、本発明品の効果を調査した。蓄電池搭載位置を変えて、ほぼ同一条件で走行し、蓄電池温度を調査した。
試験内容を表1に示す。
【0023】
【表1】
【0024】
試験No.1は、試験の比較用としてエンジンルーム内に蓄電池を置いたものである。
【0025】
試験No.2は、本発明の実施例であり、蓄電池は収納容器内に入れられている。収納容器の構造は、図3に示したもので、容器前面に室内空気流入用のファンが取り付けられている。試験の間は、ファンを常時作動させており、室内から容器内に取り入れた空気は、容器内を循環した後排気チューブから車外へと排出されている。
【0026】
試験No.3は、本発明の他の実施例であり、外気が強制的に外気流入チューブに送り込まれ、収納容器内を循環した後排気チューブから車外へと排出されている。試験の間はファンを常時作動させた。
【0027】
試験No.4は、本発明さらに他の実施例である。蓄電池は収納容器に入れずに、露出状態で座席に固定している。蓄電池からの排気チューブは車外へとつながっている。
【0028】
試験結果を表2に示す。試験中の電池温度をモニターし、走行中の蓄電池の最高温度と最高温度に到達するまでの時間を示した。最高温度が低いほど、また到達時間が長いほど蓄電池が効率的に冷却されていることを示しており、蓄電池にとっては好ましい。
【0029】
【表2】
【0030】
蓄電池をエンジンルーム内に搭載した試験No.1は、走行開始後から急激に温度上昇し、1時間程度で79℃になった。これ以上の温度になると危険なため、この時点で試験を打ち切った。このように温度上昇が大きな理由は、電池自身の発熱に加え、エンジンからの熱を受けているためである。
【0031】
本発明品である試験No.2,3,4は、いずれも温度上昇は緩やかで、8時間の走行が可能であった。最高温度は、蓄電池収納容器内に室内空気を流入している試験No.2で44℃、蓄電池収納容器内に室外空気を流入している試験No.3で39℃、蓄電池を直接座席に固定した試験No.4で55℃であった。いずれの試験においても、室内の空気がエアコンにより常に適温に制御されているため、温度が上昇しにくいものと思われる。それに加え、強制的に空気を循環させたNo.3,4では、さらに冷却効果が向上している。
【0032】
以上、詳述したように本発明によれば、自動車の容積効率を向上させつつ、蓄電池の性能を向上させることが可能となった。
【0033】
【発明の効果】
以上に述べたように、本発明によれば、居住空間の低減による快適性を損なうことのないハイブリッドカーや従来型自動車を提供するとともに、蓄電池が高温になることを防止し得る自動車を提供することが可能となった。
【図面の簡単な説明】
【図1】 本発明品の一例の外観図
【図2】 本発明品の一例の断面図
【図3】 蓄電池収納容器の構造(室内空気吸入型)を示した図
【図4】 蓄電池収納容器の構造(室外空気吸入型)を示した図
【図5】 本発明品の弁制御形鉛蓄電池の一例
【図6】 本発明品を自動車に搭載した場合の一例の説明図
【図7】 アイドリング停止中に蓄電池に流れる電流を示した図[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile.
[0002]
[Prior art]
In recent years, there has been a great demand for energy saving for automobiles, and so-called hybrid cars that combine an engine and a storage battery have appeared. The hybrid car is equipped with a storage battery, and performs engine power assist when starting, idling stop, energy recovery during deceleration, and the like.
The functions required for automobiles are safety and comfort. For this reason, it has been designed to maximize the living space in the automobile, but there are many dead spaces, for example, the lower part of the seat is just an empty space.
[0003]
[Problems to be solved by the invention]
In addition to conventional engines, hybrid cars are equipped with a storage battery, an electric motor, a control circuit, and the like, so there is a problem that the living space in the automobile becomes narrow. Further, since the storage battery of the hybrid car is repeatedly charged and discharged with a large current, the calorific value is large and the temperature tends to become high, so it is necessary to attach a cooling device such as a fan. As a result, problems such as a decrease in living space, an increase in weight, and an increase in cost due to securing a mounting space for the cooling device have also occurred.
[0004]
On the other hand, in a conventional automobile with only an engine, the storage battery is mounted in the engine room. The engine room is placed in a high-temperature environment because it generates heat from the engine in addition to the outside air temperature. Although the storage battery has a short life under a high temperature environment, there is a problem that providing a cooling device for the storage battery leads to an increase in cost.
[0005]
The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a hybrid car and a conventional vehicle that do not impair the comfort due to the reduction of living space, and the storage battery has a high temperature. It is providing the motor vehicle which can prevent becoming.
[0006]
[Means for Solving the Problems]
The present invention reduces the dead space in the living space by holding the storage battery integrally with the seat, optimizes the volumetric efficiency, and adopts an efficient cooling mechanism for the storage battery, thereby It is intended to improve.
[0007]
That is, the first invention of the present application is an automobile characterized in that the storage battery is integrally held in the seat, and when the seat is slid back and forth, the storage battery is also slid accordingly . As a mode of “holding the storage battery integrally with the seat”, there are a method of fixing the storage battery in an exposed state, and a method of fixing a box-shaped storage battery storage section under the seat and storing the storage battery there. In any case, when the seat is slid back and forth, the storage battery is also slid along therewith. Japanese Patent Application Laid-Open No. 11-99832 and Japanese Patent Application Laid-Open No. 2001-138553 disclose automobiles in which a storage battery is arranged under a seat. In these, the storage battery is mounted on the seat mounting surface of the automobile, and on the upper part thereof. It should be noted that the storage battery is configured not to slide even if the seat is arranged and the seat slides back and forth. According to the first aspect of the present invention, the storage battery is held integrally with the seat, the sliding seat back and forth, Runode is configured to slide with it also the storage battery, since the residence chamber is effectively utilized, residence Sex is kept comfortable.
[0009]
In the first invention, if a gap is formed between the bottom surface of the storage battery and the seat mounting surface of the automobile, air can flow through the bottom surface of the storage battery, so that the cooling efficiency is dramatically improved. The bottom surface of the storage battery means not only the bottom surface of the storage battery integrally held in the seat in an exposed state, but also the bottom surface of the storage battery storage section when the storage battery is stored in the storage battery storage section fixed to the seat. ing.
[0010]
The second invention of the present application is the first invention, wherein the storage battery is stored in a storage battery storage part fixed to the seat, and a mechanism for inhaling air inside the automobile or outside air into the storage battery storage part and exhausting it outside is provided. It is characterized by being. According to the second aspect of the invention, since the storage battery is stored in the storage battery storage section fixed to the seat, the indoor aesthetics are improved as compared with the case where the storage battery is exposed. Further, safety is ensured and deterioration of the storage battery performance is prevented. That is, depending on the usage state of the storage battery, gas such as hydrogen, oxygen, hydrogen sulfide, etc. may be generated from the storage battery, but it is safe because it can be released outside the vehicle. In addition, the storage battery cannot perform sufficiently in extremely low or high temperature environments, but because the indoor air is always kept at an appropriate temperature by air conditioning, the storage battery can always be kept at the optimum temperature. Can shorten the service life. When inhaling indoor air and exhausting it outside the room, suction means or exhaust means such as a fan are required.However, when inhaling outdoor air and exhausting it outside the room, natural ventilation by running may be used. I can do it.
[0011]
If the storage battery of the present invention is a valve-controlled lead-acid battery, the electrolyte is not leaked from the valve-controlled lead-acid battery because the electrolyte is non-fluidized. In addition, the amount of gas generated from the storage battery is small. Conventionally used lead-acid batteries having a flowing electrolyte solution have a risk of liquid leakage and are not suitable for use in an automobile interior.
[0012]
Further, in applications where charging / discharging with a large current is repeated as in a hybrid car, the storage battery itself generates heat. For this reason, in the first or second invention, when a temperature sensor is attached to the valve-controlled lead-acid battery and charge / discharge control is performed based on the sensor detection temperature, the temperature of the battery is detected by the temperature sensor. By controlling the amount of heat generated by taking measures such as reducing the current, the storage battery can always be used in an appropriate state.
[0013]
A third invention of the present application is characterized in that, in the first or second invention, an exhaust tube is attached to the valve-controlled lead-acid battery, and a tip of the exhaust tube is placed outdoors. According to the present invention, since the gas discharged from the storage battery is directly exhausted to the outside of the room, further safety is ensured. If the use form of the storage battery is not a large charge / discharge, and if it is a gradual one such as an auxiliary drive of an electric part for automobiles, the problem of heat generation and gas generation hardly occurs. In such a case, the storage battery may be fixed to the seat in an exposed state without using the storage battery storage unit. In that case, a storage battery storage part is unnecessary and an increase in cost can be suppressed.
[0014]
As described above, according to the present invention, it is possible to improve the performance of the storage battery in addition to the optimization of the volumetric efficiency of the automobile.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
A typical automobile seat is made by mounting a seat cushion member on a seat structure member. The seat is placed on the rail for back and forth movement and is fixed to the chassis of the automobile which is the seat mounting surface. By operating a lever attached to the seat, the seat can be moved back and forth.
[0016]
An example of the appearance of the seat portion of the automobile according to the present invention is shown in FIG. 1, and a sectional view thereof is shown in FIG. The storage battery or the storage battery storage container in which the storage battery is stored is laid under the seat surface. At this time, a gap exists between the bottom surface of the storage battery or the storage battery storage container bottom surface and the seat mounting surface. An electrical cable and an exhaust tube (not shown) are attached to the storage battery or the storage battery storage container.
[0017]
FIG. 3 is a diagram showing the structure of a storage battery storage container of indoor air intake type. A storage battery is placed in the container. A fan for sucking indoor air into the container is attached to the front surface of the container, and an exhaust tube is attached to the lower surface of the container. The room air taken in from the fan circulates in the container and is exhausted from the exhaust tube to the outside. The position of the fan need not be the front surface of the container. For example, the same effect can be obtained even if air is sucked from the exhaust tube side. A positive and negative electric cable is attached to the storage battery, and this cable is connected to a device at another location. Further, a temperature sensor is attached to the storage battery, and the storage battery is controlled based on the detection result.
[0018]
FIG. 4 is a view showing the structure of an outdoor air intake storage battery storage container. An intake tube is attached to the lower front of the container. The intake tube is connected to the outside of the room, and the air taken in from this is circulated in the container and exhausted from the exhaust tube to the outside. In order to circulate the air, it is possible to use a method such as placing a blower at the inlet tube inlet end, placing an inlet device at the exhaust tube outlet end, or a combination thereof. For example, when the battery temperature is lower than the optimum operating temperature, it is possible to raise the battery temperature by sending warm air in the engine room. On the other hand, when the battery temperature is higher than the optimum operating temperature, rapid cooling can be achieved by feeding cool air from the air conditioner. Since this storage container has a sealed structure with respect to the interior of the automobile, even if gas is generated from the storage battery, it can be safely discharged outside the room.
[0019]
FIG. 5 shows an example of a valve-controlled lead-acid battery used in the present invention. A temperature sensor and an exhaust tube are attached to the storage battery. When the battery is attached to the seat alone, an exhaust tube is required. However, when the storage battery is placed in the storage container, the container has an exhaust function and is not particularly necessary. The storage battery is made by attaching a lid to the battery case part, but by sealing the lid part and opening only the exhaust tube part, the gas discharged from the battery can be concentrated on this part. By leaving the end of the exhaust tube out of the vehicle, the gas generated from the storage battery can be safely discharged out of the vehicle.
[0020]
【Example】
The automobile of the present invention was evaluated. The car is a 3000CC sedan, which is a hybrid type that stops idling while it is stopped. A 36 V, 20 Ah valve-controlled lead acid battery was used as the storage battery. FIG. 6 is a schematic diagram of the automobile of the present invention. A storage battery storage container is fixed to the seat, and an outdoor air intake mechanism is attached. The outside air is forcibly sent to the outside air inflow tube, circulates in the storage container, and is then discharged from the exhaust tube to the outside of the vehicle. The storage battery is connected to the storage battery control device by an electric cable.
[0021]
FIG. 7 shows the current flowing through the storage battery when the automobile is actually run. The current charged in the storage battery during normal running is small. When the vehicle stops, idling of the engine stops, and at that time, driving electric energy of an electric device such as an air conditioner is supplied from the storage battery, and a discharge current flows. When starting running again, the engine is restarted and a large starting current flows. When traveling is started, a charging current starts to flow through the storage battery in order to recover the electric energy discharged while idling is stopped. As the storage battery approaches a fully charged state, the current gradually decreases. When the vehicle travels on a congested road or the like, these repetitions are frequently performed, so that the storage battery is repeatedly charged and discharged. For this reason, the storage battery itself generates heat, and the storage battery temperature gradually increases. When a storage battery is exposed to a high temperature, its life characteristics are deteriorated. Therefore, it is preferable that the storage battery is not as high as possible.
[0022]
Traveling on a congested road was conducted for 8 hours when the outside air temperature was 20 ° C., and the effect of the product of the present invention was investigated. The vehicle was run under almost the same conditions by changing the storage battery mounting position, and the storage battery temperature was investigated.
Table 1 shows the test contents.
[0023]
[Table 1]
[0024]
Test No. No. 1 has a storage battery in the engine room for comparison of tests.
[0025]
Test No. Reference numeral 2 denotes an embodiment of the present invention, in which a storage battery is placed in a storage container. The structure of the storage container is shown in FIG. 3, and a fan for inflowing indoor air is attached to the front surface of the container. During the test, the fan is always operated, and the air taken into the container from the room is circulated through the container and then discharged from the exhaust tube to the outside of the vehicle.
[0026]
Test No. Reference numeral 3 denotes another embodiment of the present invention, in which outside air is forcibly sent into an outside air inflow tube, circulates in the storage container, and is then discharged from the exhaust tube to the outside of the vehicle. The fan was operated at all times during the test.
[0027]
Test No. 4 is still another embodiment of the present invention. The storage battery is fixed to the seat in an exposed state without being placed in a storage container. The exhaust tube from the storage battery is connected outside the vehicle.
[0028]
The test results are shown in Table 2. The battery temperature during the test was monitored and the maximum temperature of the storage battery during running and the time to reach the maximum temperature were shown. The lower the maximum temperature and the longer the arrival time, the more efficiently the storage battery is cooled, which is preferable for the storage battery.
[0029]
[Table 2]
[0030]
Test No. with storage battery installed in the engine compartment. 1 suddenly rose in temperature after the start of running and reached 79 ° C. in about one hour. The test was terminated at this point because it would be dangerous if the temperature was exceeded. The reason for such a large temperature increase is that the battery itself receives heat from the engine in addition to the heat generated by the battery itself.
[0031]
Test No. which is a product of the present invention. In each of 2, 3 and 4, the temperature rise was slow and the vehicle could run for 8 hours. The maximum temperature is the test No. in which room air flows into the storage battery storage container. No. 2 at 44 ° C., test No. No. 3 at 39 ° C., with the storage battery fixed directly to the seat. 4 and 55 ° C. In any of the tests, the room air is always controlled to an appropriate temperature by the air conditioner, so the temperature is unlikely to rise. In addition, no. In 3 and 4, the cooling effect is further improved.
[0032]
As described above, according to the present invention, it is possible to improve the performance of the storage battery while improving the volumetric efficiency of the automobile.
[0033]
【The invention's effect】
As described above, according to the present invention, a hybrid car and a conventional automobile that do not impair comfort due to a reduction in living space are provided, and an automobile that can prevent a storage battery from becoming hot is provided. It became possible.
[Brief description of the drawings]
1 is an external view of an example of the product of the present invention. FIG. 2 is a sectional view of an example of the product of the present invention. FIG. 3 is a diagram showing the structure of a storage battery storage container (indoor air intake type). FIG. 5 shows an example of a valve-controlled lead-acid battery of the present invention product. FIG. 6 is an explanatory diagram of an example of mounting the product of the present invention on an automobile. The figure which showed the electric current which flows into the storage battery during stop
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001387462A JP3788507B2 (en) | 2001-12-20 | 2001-12-20 | Car |
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| JP2001387462A JP3788507B2 (en) | 2001-12-20 | 2001-12-20 | Car |
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| JP2003182377A JP2003182377A (en) | 2003-07-03 |
| JP2003182377A5 JP2003182377A5 (en) | 2005-07-21 |
| JP3788507B2 true JP3788507B2 (en) | 2006-06-21 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6902020B2 (en) * | 2002-07-29 | 2005-06-07 | Daimlerchrysler Corporation | Interior vehicle battery system and method |
| JP3861826B2 (en) * | 2003-02-24 | 2006-12-27 | トヨタ車体株式会社 | Vehicle front seat |
| JP4030929B2 (en) * | 2003-07-22 | 2008-01-09 | 本田技研工業株式会社 | Output control device for power storage device |
| JP4561083B2 (en) * | 2003-11-21 | 2010-10-13 | トヨタ自動車株式会社 | Vehicle battery pack mounting structure |
| JP2005247064A (en) * | 2004-03-02 | 2005-09-15 | Toyota Motor Corp | Power storage mechanism mounting structure |
| JP4710320B2 (en) * | 2004-12-28 | 2011-06-29 | トヨタ自動車株式会社 | Vehicle battery pack mounting structure |
| JP2006216303A (en) | 2005-02-02 | 2006-08-17 | Denso Corp | Heating equipment cooling structure |
| JP4552727B2 (en) * | 2005-03-28 | 2010-09-29 | パナソニック電工株式会社 | Charging device and rechargeable electric tool set |
| JP4826216B2 (en) * | 2005-11-07 | 2011-11-30 | トヨタ自動車株式会社 | Vehicle equipped with fuel cell |
| JP4462263B2 (en) | 2006-12-21 | 2010-05-12 | トヨタ自動車株式会社 | Heat dissipation mechanism |
| JP5272852B2 (en) * | 2009-03-30 | 2013-08-28 | マツダ株式会社 | Battery structure for electric vehicles |
| JP5861938B2 (en) * | 2012-07-27 | 2016-02-16 | スズキ株式会社 | Wire harness for vehicles |
| JPWO2014068882A1 (en) * | 2012-10-29 | 2016-09-08 | 三洋電機株式会社 | In-vehicle electric spare battery unit, vehicle power supply device, and vehicle equipped with this power supply device |
| CN109017491B (en) * | 2018-07-02 | 2020-11-17 | 聊城能驰新能源科技有限公司 | Seat barrel for new energy automobile |
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