JPH11301285A - Battery accommodating case of electric vehicle - Google Patents

Battery accommodating case of electric vehicle

Info

Publication number
JPH11301285A
JPH11301285A JP12282898A JP12282898A JPH11301285A JP H11301285 A JPH11301285 A JP H11301285A JP 12282898 A JP12282898 A JP 12282898A JP 12282898 A JP12282898 A JP 12282898A JP H11301285 A JPH11301285 A JP H11301285A
Authority
JP
Japan
Prior art keywords
batteries
battery
heating element
concaves
case
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
Application number
JP12282898A
Other languages
Japanese (ja)
Inventor
Nobuyuki Kawamura
伸之 川村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Motors Corp
Original Assignee
Mitsubishi Motors Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Motors Corp filed Critical Mitsubishi Motors Corp
Priority to JP12282898A priority Critical patent/JPH11301285A/en
Publication of JPH11301285A publication Critical patent/JPH11301285A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

PROBLEM TO BE SOLVED: To simplify wiring for heating batteries and to stably dispose each battery in a predetermined method by forming a plurality of concaves, imbedding the batteries in the respective concaves and providing a conductive plane heating element which generates heat with current carried in it so that it may heat each battery. SOLUTION: A plane heating element 10 is formed by providing a plurality of concaves 12 arranged by a lattice partition, and batteries 13 for a motive power of an electric automobile are imbedded in the respective concaves 12. These batteries 13 for a motive power are accommodated in a case 15 made of a reinforced plastic through a hard foaming heat insulator 14, and the case 15 is loaded at mountable and removable in a car body of the electric automobile from below. Further, in the case where the batteries 13 for a motive power are unsuitable for charging because of its low temperature, the batteries 13 for a motive power are so heated as to be charged by applying voltage to a space between a plurality of conductive resin films constituting the plane heating element 10 by an external power source 30 and making resistances between the conductive resin films generate heat.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電気自動車におい
て、動力用電池の加熱手段をそなえた電池収納ケースに
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vehicle, and more particularly, to a battery storage case having heating means for a power battery.

【0002】[0002]

【従来の技術】電気自動車における動力用電池は、外気
温が低くいため低温となっていると、電池内部の化学反
応が鈍くなって十分な充電を行うことができないので、
電池による車両の走行距離の短縮化を招き、また、極低
温のために電池の電解液が凍結すると、通常の充電がで
きなくなるので、ヒータ等により電池を加熱して、電解
液を解凍させてから充電する必要がある。
2. Description of the Related Art A power battery in an electric vehicle has a low outside temperature and is low in temperature, so that a chemical reaction inside the battery becomes slow and a sufficient charge cannot be performed.
If the battery causes the vehicle to travel shorter, and the battery electrolyte freezes due to the extremely low temperature, normal charging becomes impossible, so the battery is heated by a heater or the like to thaw the electrolyte. It is necessary to charge from.

【0003】一方、電気自動車に用いられる複数の動力
用電池は、使用時の発熱により高温となると劣化しやす
くなるため、電池使用時の放熱性を確保し、また、自動
車の走行時等に隣接する電池同士が衝突しないようにす
るため、相互に間隔を明けておく必要があるので、従来
は、図5に示されているように、各電池1毎に発熱体2
内へ収納して、各発熱体2をそれぞれ電線3で接続し、
必要に応じて車両に搭載の補機電池、または、外部電源
4により各発熱体2に通電して、各電池1を加熱するよ
うにしていた。
On the other hand, a plurality of power batteries used in electric vehicles tend to be deteriorated at high temperatures due to heat generated during use. Therefore, heat dissipation during use of the batteries is ensured, and a plurality of power batteries are used when the vehicle is running. In order to prevent collisions between the batteries, it is necessary to keep an interval between the batteries. Conventionally, as shown in FIG.
And each heating element 2 is connected by an electric wire 3,
When necessary, each heating element 2 is energized by an auxiliary battery mounted on the vehicle or an external power supply 4 to heat each battery 1.

【0004】しかしながら、電気自動車には通常多数の
電池1が搭載されるため、各電池1にそれぞれ発熱体2
を使用する場合には、各電池1を所定の配置で固定する
ことは必ずしも容易でなく、また、多数の発熱体2を正
しく結線することはそれなりに煩雑であると同時に、複
雑な配線の空間を確保する必要があり、さらには、配線
の絶縁不良や断線等の心配をしなければならなかった。
However, since a large number of batteries 1 are usually mounted on an electric vehicle, each battery 1 has a heating element 2.
Is not always easy to fix each battery 1 in a predetermined arrangement, and it is rather complicated to connect a large number of heating elements 2 properly, and at the same time, the space for complicated wiring is complicated. In addition, it is necessary to worry about poor insulation of wiring, disconnection, and the like.

【0005】[0005]

【発明が解決しようとする課題】本発明は、電気自動車
において、複数の動力用電池を加熱するために要する配
線を簡略化し、かつ、各電池を所定どおり安定的に配置
できるようにしようとするものである。
SUMMARY OF THE INVENTION An object of the present invention is to simplify the wiring required for heating a plurality of power batteries in an electric vehicle and to stably arrange the batteries as required. Things.

【0006】[0006]

【課題を解決するための手段】このため、本発明にかか
る電気自動車の電池収納ケースは、複数の凹所が形成さ
れて、各凹所内へそれぞれ電池が嵌め込まれ、通電によ
り発熱して上記電池を加熱する導電性面状発熱体をそな
えている。
For this reason, the battery housing case of the electric vehicle according to the present invention has a plurality of recesses formed therein, and the batteries are fitted into the respective recesses. And a conductive sheet heating element for heating the heating element.

【0007】従って、電源により通電されて面状発熱体
が発熱すると、面状発熱体の各凹所にそれぞれ嵌め込ま
れた各電池を同時に加熱することができ、また、各電池
が面状発熱体の各凹所にそれぞれ嵌め込まれることによ
り、各凹所により定められた位置へ複数の電池を容易
に、かつ、安定的に配置することができる。
[0007] Therefore, when the sheet heating element generates heat by being energized by the power supply, the batteries fitted into the respective recesses of the sheet heating element can be heated simultaneously, and each battery can be heated by the sheet heating element. By fitting into each of the recesses, a plurality of batteries can be easily and stably arranged at positions defined by the recesses.

【0008】[0008]

【発明の実施の形態】以下、本発明の実施形態例につい
て説明する。図1〜図3において、面状発熱体10は、
格子状の仕切り11により整列した複数の凹所12が形
成されて、各凹所12にそれぞれ電気自動車の動力用電
池13が嵌め込まれ、各動力用電池13はその状態で硬
質の発泡断熱材14を介し強化プラスチック製ケース1
5内へ収納されていて、ケース15が電気自動車の図示
しない車体へ下方から着脱自在に搭載されている。
Embodiments of the present invention will be described below. 1 to 3, the sheet heating element 10 is
A plurality of recesses 12 arranged by the grid-like partition 11 are formed, and power batteries 13 of the electric vehicle are fitted into the recesses 12, respectively. Reinforced plastic case 1
5, and a case 15 is detachably mounted on a vehicle body (not shown) of the electric vehicle from below.

【0009】また、面状発熱体10は、図4に例示され
ているように、一部を抵抗体20に置き換えた絶縁層2
1が導電性樹脂膜22、22間に挟み込まれ、導電性樹
脂膜22、22の外側にそれぞれ絶縁フイルム23、2
3が貼り付けられた多層構造となっていて、抵抗体2
0、絶縁層21、導電性樹脂膜22、22及び絶縁フイ
ルム23、23がそれぞれ柔軟であるため、面状発熱体
10は全体的に柔軟で弾力性を有している。
Further, as shown in FIG. 4, the sheet heating element 10 has an insulating layer 2 which is partially replaced with a resistor 20.
1 is sandwiched between the conductive resin films 22, 22, and the insulating films 23, 2
3 has a multi-layer structure with the resistor 2
0, the insulating layer 21, the conductive resin films 22, 22, and the insulating films 23, 23 are each flexible, so that the sheet heating element 10 is entirely flexible and elastic.

【0010】抵抗体20は通電されることにより発熱す
ることができるものであって、動力用電池13が嵌め込
まれる各凹所12の側面及び底面に相当する部分に配設
され、その他の部位は絶縁層21が配設されて導電性樹
脂膜22、22間を絶縁している。
The resistor 20 is capable of generating heat when energized. The resistor 20 is disposed at a portion corresponding to the side and bottom of each recess 12 into which the power battery 13 is fitted. An insulating layer 21 is provided to insulate the conductive resin films 22 from each other.

【0011】導電性樹脂膜22、22は電気抵抗が小さ
く、電気自動車の補機電池、または、外部電源30を抵
抗体20の両側面にそれぞれ接続して、抵抗体20に電
力を供給することができ、また、絶縁フイルム23、2
3は導電性樹脂膜22、22と外部との絶縁を確保する
と共に、面状発熱体10の耐湿性及び耐薬品性を確保し
ている。
The electric resistance of the conductive resin films 22 and 22 is small, and an auxiliary battery of an electric vehicle or an external power supply 30 is connected to both side surfaces of the resistor 20 to supply power to the resistor 20. And insulating films 23, 2
Numeral 3 secures insulation between the conductive resin films 22 and 22 and the outside, and also secures moisture resistance and chemical resistance of the sheet heating element 10.

【0012】従って、各電池13が比較的低温であるた
め電池13の充電が不適当であると判断される場合に、
電気自動車の補機電池、または、外部電源30により導
電性樹脂膜22、22間に電圧が加えられると、絶縁層
21以外の抵抗体20に通電されて抵抗体20が発熱す
るので、各凹所12に嵌め込まれて面状発熱体10に密
着した電池13はその側面及び底面から加熱され、図示
しない温度センサにより電池13の温度が充電に適当な
程度にまで上昇したと判断されると、図示しない充電装
置が作動して、各電池13への充電が開始される。
Therefore, when it is determined that the charging of the batteries 13 is inappropriate because the respective batteries 13 are relatively low in temperature,
When a voltage is applied between the conductive resin films 22 and 22 by the auxiliary battery of the electric vehicle or the external power supply 30, the resistor 20 other than the insulating layer 21 is energized and the resistor 20 generates heat. When the battery 13 fitted into the place 12 and in close contact with the sheet heating element 10 is heated from its side and bottom surfaces, and a temperature sensor (not shown) determines that the temperature of the battery 13 has risen to an appropriate level for charging, A charging device (not shown) is activated, and charging of each battery 13 is started.

【0013】この場合、各部の抵抗体20はそれぞれ均
一に発熱して昇温するので、面状発熱体10に密着した
電池13はそれぞれ同時に、かつ、むらなく加熱される
ので各電池13を十分に充電して、電気自動車の走行距
離を容易に延ばすことができるようになる。
In this case, since the resistors 20 of the respective parts generate heat uniformly and rise in temperature, the batteries 13 in close contact with the planar heating element 10 are simultaneously and evenly heated, so that the batteries 13 can be sufficiently heated. , The mileage of the electric vehicle can be easily extended.

【0014】しかも、抵抗体20及び導電性樹脂膜2
2、22は面状に形成されているため、通常の導線にお
ける断線のような通電の阻害は抵抗体20及び導電性樹
脂膜22、22に全く発生せず、各電池13を確実に加
熱できる特色があり、また、面状発熱体10が全体的に
一体成形されていて、上記従来装置におけるような発熱
体間の配線は全く不要であるため、多数の電池13が搭
載されていてもその配線に伴う煩雑さや、複雑な配線の
空間確保、あるいは、配線の絶縁不良等の心配が不必要
となって、非常に便利である。
In addition, the resistor 20 and the conductive resin film 2
Since the wires 2 and 22 are formed in a planar shape, no interruption of current supply such as disconnection in a normal conductive wire occurs at all in the resistor 20 and the conductive resin films 22 and 22, and each battery 13 can be reliably heated. There is a feature, and the sheet heating element 10 is integrally formed as a whole, and wiring between the heating elements as in the above-described conventional device is completely unnecessary. This is very convenient because there is no need to worry about the complexity associated with wiring, securing a space for complicated wiring, or poor wiring insulation.

【0015】また、それぞれの電池13は面状発熱体1
0における各凹所12内へ弾力的に嵌め込まれているの
で、各電池13と凹所12との密着性が良いため面状発
熱体10から各電池13への熱伝導が良好となって、比
較的少ない電力で各電池13を効率よく加熱できる一
方、面状発熱体10に形成された各凹所12の位置に対
応し、適当な間隔をおいた位置へ各電池13を正しく、
かつ、きわめて容易に固定することができ、かつ、各電
池13間にそれぞれ適度の空間を容易に確保できて、電
池13の使用時における各電池13の冷却性を損なうこ
ともない。
Each of the batteries 13 is provided with a sheet heating element 1.
0, it is elastically fitted into each recess 12, so that the adhesion between each battery 13 and the recess 12 is good, so that the heat conduction from the planar heating element 10 to each battery 13 is good. While each battery 13 can be efficiently heated with relatively little electric power, each battery 13 is correctly positioned at an appropriate interval corresponding to the position of each recess 12 formed in the planar heating element 10.
In addition, the battery 13 can be fixed very easily, and an appropriate space can be easily secured between the batteries 13, and the cooling performance of the batteries 13 during use of the batteries 13 is not impaired.

【0016】さらに、面状発熱体10自身が柔軟で弾力
性をそなえているため、その凹所12内へ嵌め込まれて
いる各電池13は弾性支持されていることとなるので、
電気自動車の走行等により各電池13が受ける振動や衝
撃は容易に吸収されて、各電池13の耐久性を確実に向
上させることができる。
Further, since the sheet heating element 10 itself is flexible and elastic, each battery 13 fitted into the recess 12 is elastically supported.
Vibration and impact received by each battery 13 due to running of the electric vehicle or the like are easily absorbed, and the durability of each battery 13 can be reliably improved.

【0017】なお、上記実施形態例における面状発熱体
は、適当な内部電気抵抗をそなえた導電性のカーボン入
りゴムで構成し、それに対する通電により適宜発熱させ
て、全体的に昇温するようにしても、上記実施形態例と
同様な作用効果を奏することができるのはいうまでもな
い。
The planar heating element in the above embodiment is made of a conductive carbon-containing rubber having an appropriate internal electric resistance, and heat is appropriately generated by energizing the rubber to raise the temperature as a whole. In any case, it is needless to say that the same operation and effect as in the above embodiment can be obtained.

【0018】[0018]

【発明の効果】本発明にかかる電気自動車の電池収納ケ
ースにあっては、複数の電池に対する導電性面状発熱体
が一体成形されていて、各電池を同時に、かつ、むらな
く加熱することができると共に、各電池間の配線が不要
となる便利さがあり、また、面状発熱体に形成された各
凹所に電池がそれぞれ嵌め込まれることにより、複数の
電池を容易に、かつ、安定的に配置することができて、
この面からも大層便利な長所がある。
In the battery storage case of the electric vehicle according to the present invention, the conductive sheet heating elements for a plurality of batteries are integrally formed so that each battery can be heated simultaneously and evenly. In addition to this, there is the convenience that wiring between the batteries is not required, and the batteries are easily fitted in the respective recesses formed in the sheet heating element, so that a plurality of batteries can be easily and stably provided. Can be placed in
From this aspect, there are many advantages.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施形態例における概略配置図。FIG. 1 is a schematic layout diagram in an embodiment of the present invention.

【図2】上記実施形態例の要部分解斜視図。FIG. 2 is an exploded perspective view of a main part of the embodiment.

【図3】上記実施形態例の要部縦断面図。FIG. 3 is a vertical sectional view of a main part of the embodiment.

【図4】上記実施形態例の一部説明図。FIG. 4 is a partial explanatory view of the embodiment.

【図5】従来装置における概略配置図。FIG. 5 is a schematic layout diagram of a conventional device.

【符号の説明】[Explanation of symbols]

10 面状発熱体 12 凹所 13 電池 15 ケース 30 電源 DESCRIPTION OF SYMBOLS 10 Planar heating element 12 Concavity 13 Battery 15 Case 30 Power supply

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 複数の凹所が形成されて、各凹所内へそ
れぞれ電池が嵌め込まれ、通電により発熱して上記電池
を加熱する導電性面状発熱体をそなえた電気自動車の電
池収納ケース。
1. A battery storage case for an electric vehicle, comprising a plurality of recesses, a battery being fitted into each of the recesses, and a conductive planar heating element that generates heat when energized and heats the battery.
【請求項2】 請求項1において、上記面状発熱体が弾
力性を有している電気自動車の電池収納ケース。
2. The battery storage case for an electric vehicle according to claim 1, wherein the planar heating element has elasticity.
JP12282898A 1998-04-16 1998-04-16 Battery accommodating case of electric vehicle Pending JPH11301285A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12282898A JPH11301285A (en) 1998-04-16 1998-04-16 Battery accommodating case of electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12282898A JPH11301285A (en) 1998-04-16 1998-04-16 Battery accommodating case of electric vehicle

Publications (1)

Publication Number Publication Date
JPH11301285A true JPH11301285A (en) 1999-11-02

Family

ID=14845655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12282898A Pending JPH11301285A (en) 1998-04-16 1998-04-16 Battery accommodating case of electric vehicle

Country Status (1)

Country Link
JP (1) JPH11301285A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030092387A (en) * 2002-05-29 2003-12-06 현대자동차주식회사 Stack protection apparatus of fuel cell electric vehicle
JP2006176105A (en) * 2004-11-26 2006-07-06 Honda Motor Co Ltd Fuel cell vehicle
US7416801B2 (en) * 2003-04-07 2008-08-26 Kabushiki Kaisha Toyota Jidoshokki Warming device for fuel cell system
US20110091759A1 (en) * 2009-10-16 2011-04-21 Samsung Sdi Co., Ltd. Battery module
WO2011135762A1 (en) * 2010-04-28 2011-11-03 パナソニック株式会社 Battery module
JP2014229621A (en) * 2013-05-27 2014-12-08 エルジー・ケム・リミテッド Battery cell tray including hot wire mounted thereon
KR101481222B1 (en) * 2012-07-18 2015-01-12 (주)엘지하우시스 Heating sheet for battery module
JP2017076544A (en) * 2015-10-15 2017-04-20 トヨタ自動車株式会社 Vehicle control system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030092387A (en) * 2002-05-29 2003-12-06 현대자동차주식회사 Stack protection apparatus of fuel cell electric vehicle
US7416801B2 (en) * 2003-04-07 2008-08-26 Kabushiki Kaisha Toyota Jidoshokki Warming device for fuel cell system
JP2006176105A (en) * 2004-11-26 2006-07-06 Honda Motor Co Ltd Fuel cell vehicle
US20110091759A1 (en) * 2009-10-16 2011-04-21 Samsung Sdi Co., Ltd. Battery module
KR101093695B1 (en) * 2009-10-16 2011-12-19 삼성에스디아이 주식회사 Battery module
US8871371B2 (en) 2009-10-16 2014-10-28 Samsung Sdi Co., Ltd. Battery module
WO2011135762A1 (en) * 2010-04-28 2011-11-03 パナソニック株式会社 Battery module
KR101481222B1 (en) * 2012-07-18 2015-01-12 (주)엘지하우시스 Heating sheet for battery module
JP2014229621A (en) * 2013-05-27 2014-12-08 エルジー・ケム・リミテッド Battery cell tray including hot wire mounted thereon
JP2017076544A (en) * 2015-10-15 2017-04-20 トヨタ自動車株式会社 Vehicle control system

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