JP2013135720A - Fire extinguishing structure of electric vehicle - Google Patents

Fire extinguishing structure of electric vehicle Download PDF

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JP2013135720A
JP2013135720A JP2011287332A JP2011287332A JP2013135720A JP 2013135720 A JP2013135720 A JP 2013135720A JP 2011287332 A JP2011287332 A JP 2011287332A JP 2011287332 A JP2011287332 A JP 2011287332A JP 2013135720 A JP2013135720 A JP 2013135720A
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fire
charging
extinguishing agent
battery
electric vehicle
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JP5849692B2 (en
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Terutoshi Bito
照敏 尾藤
Kyoichi Suzuki
亨一 鈴木
Ryoji Taneda
良司 種田
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Mitsubishi Motors Corp
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/296—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by terminals of battery packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a fire extinguishing structure of an electric vehicle in which a battery fire can be extinguished while suppressing damage to a charging cable of the electric vehicle by using a simple structure.SOLUTION: The fire extinguishing structure of an electric vehicle is such that, in the vehicle body 1, an inlet 21 for a fire-extinguishing agent is installed which receives a fire-extinguishing agent supplied from a fire extinguisher 25 performing an extinguishing operation of a fire, that a fire-extinguishing agent injection conduit 23 is installed which guides a fire-extinguishing agent into a battery case in a manner communicating the fire-extinguishing agent inlet with the inside of the battery case 17, and that a charging cable 19 from a charging connection part 13 to the battery 18 inside the battery case is inserted into the fire-extinguishing agent injection conduit. With this structure, a battery fire can be extinguished only by injecting a fire-extinguishing agent from the fire-extinguishing agent inlet to make the battery soaked with the fire-extinguishing agent. For damage to the charging cable, the fire-extinguishing agent injection conduit becomes a protector, protecting the charging cable from jumping stones during the running.

Description

本発明は、充電ケーブルの損傷を抑えつつバッテリの火災を消火可能とした電動車両の消火構造に関する。   The present invention relates to a fire extinguishing structure for an electric vehicle that can extinguish a battery fire while suppressing damage to a charging cable.

電動車両の多くは、バッテリ、例えばリチウムイオン電池など多数の二次バッテリや、同二次バッテリのエネルギーで駆動輪を駆動する走行用の電動モータなどを搭載して、二次バッテリを電力源に走行を行う。
こうした電動車両は、二次バッテリに充電するため、車体に、充電スタンド（充電設備）の充電ガンと接続可能な充電接続部を設け、この充電接続部から二次バッテリへ充電電力を導く充電ケーブルを設けたり、二次バッテリの安全性の確保のため、高い剛性強度をもつ密閉式の金属製のバッテリケース内に二次バッテリを収めたバッテリパックが用いて、感電や衝撃から二次バッテリを保護したりしている。 Many electric vehicles are equipped with a battery, for example, a large number of secondary batteries such as lithium-ion batteries, and an electric motor for driving that drives the drive wheels with the energy of the secondary battery. Run.
In order to charge a secondary battery, such an electric vehicle is provided with a charging connection portion that can be connected to a charging gun of a charging stand (charging facility) on the vehicle body, and a charging cable that guides charging power from the charging connection portion to the secondary battery. In order to ensure the safety of the secondary battery, a battery pack containing the secondary battery in a sealed metal battery case with high rigidity and strength is used to prevent the secondary battery from electric shock and shock. I protect it.

ところで、二次バッテリの火災には、直接、二次バッテリへ水などの消火液（消火剤）を放水することが有効であるが、二次バッテリは、感電から保護するバッテリケース内に収められているため、消防車などから、直接、二次バッテリに放水することは困難である。
一方、電動車両の充電ケーブルの多くは、車体の壁面に這わせて、充電接続部から車体のフロア下のバッテリパックに渡り配線するため、走行中、飛び石などで傷付き損傷するおそれがある。充電ケーブルの損傷を防ぐには、かなり面倒な構造が求められる。 By the way, it is effective to discharge a fire extinguishing liquid (extinguishing agent) such as water directly to the secondary battery in case of a fire of the secondary battery. However, the secondary battery is housed in a battery case that protects against electric shock. Therefore, it is difficult to discharge water directly from the fire engine to the secondary battery.
On the other hand, most of the charging cables for electric vehicles are routed from the charging connection portion to the battery pack below the floor of the vehicle body along the wall surface of the vehicle body. In order to prevent damage to the charging cable, a rather troublesome structure is required.

これらに関し、二次バッテリの火災に対しては特許文献１にも開示されているように外部から消火剤を供給する技術（特許文献１）は提案されているものの、できるだけ簡単な構造で充電ケーブルの損傷を防ごうとする構造は見られない。   Regarding these, although a technique for supplying a fire extinguisher from the outside (Patent Document 1) has been proposed for a secondary battery fire as disclosed in Patent Document 1, a charging cable having a structure as simple as possible is proposed. There is no structure that tries to prevent damage.

特開２０１１− ６５８０５号公報JP 2011-65805 A

消火剤を注入する技術と、充電ケーブルの損傷を防ぐ技術とを、各々開発すると、かなりコスト的な負担が強いられる。このため、双方の技術を用いて、できるだけコストを抑えた簡単ですませる技術が要望されている。
そこで、本発明の目的は、簡単な構造を用いて、電動車両の充電ケーブルの損傷を抑えつつバッテリの火災を消火可能にした電動車両の消火構造を提供することにある。 If a technique for injecting a fire extinguishing agent and a technique for preventing damage to the charging cable are developed, a considerable cost burden is imposed. For this reason, there is a demand for a simple technique that can reduce costs as much as possible using both techniques.
Therefore, an object of the present invention is to provide a fire extinguishing structure for an electric vehicle that can extinguish a battery fire while suppressing damage to a charging cable of the electric vehicle using a simple structure.

請求項１に記載の発明は、上記目的を達成するために、車体に、火災の消火作業を行う消火装置から供給される消火剤を受ける消火剤用注入口を設け、消火剤用注入口とバッテリケース内とを連通するように、消火剤をバッテリケース内へ導く消火剤注入管路を設け、消火剤注入管路内に、充電接続部からバッテリに至る充電ケーブルを挿通させる構成を採用した。   In order to achieve the above object, the invention according to claim 1 is provided with a fire extinguisher inlet for receiving a fire extinguisher supplied from a fire extinguishing apparatus for performing a fire extinguishing work on the vehicle body. In order to communicate with the inside of the battery case, a fire extinguishing agent injection conduit for introducing the fire extinguishing agent into the battery case is provided, and a configuration is adopted in which a charging cable from the charging connection portion to the battery is inserted into the fire extinguishing agent injection conduit. .

同構成によると、バッテリの火災に対しては、消火剤用注入口から消火剤を注入して、バッテリを消火剤で浸漬させればよく、充電ケーブルの損傷に対しては、消火剤注入管路がプロテクタとなり、充電ケーブルが走行中の飛び石などから保護される。
請求項２に記載の発明は、さらに充電ケーブルが消火剤注入管路内を挿通しやすくなるよう、消火剤用注入口を充電接続部に隣接して配置することとした。 According to this configuration, in the event of a battery fire, it is only necessary to inject a fire extinguisher from the fire-extinguishing agent inlet and immerse the battery in the fire extinguishing agent. The road becomes a protector, and the charging cable is protected from a stepping stone while driving.
In the invention according to claim 2, the extinguishing agent injection port is arranged adjacent to the charging connection portion so that the charging cable can be easily inserted into the extinguishing agent injection conduit.

請求項３に記載の発明は、さらに充電時、むやみに消火剤用注入口から異物が挿入されることがないよう、消火剤用注入口は、充電接続部に接続される充電ガンの端面と重なることとした。
請求項４に記載の発明は、さらに充電時、むやみに消火剤用注入口から異物が挿入されることがないよう、蓋体は、消火剤用注入口を塞いだ状態において、前記充電接続部に接続される充電ガンの端面と重なることとした。 According to a third aspect of the present invention, the extinguishing agent injection port further includes an end face of the charging gun connected to the charging connection portion so that foreign matter is not inserted from the extinguishing agent injection port unnecessarily during charging. It was decided to overlap.
According to a fourth aspect of the present invention, in order to prevent foreign matter from being inserted through the extinguishing agent injection port during charging, the charging member is in the state where the extinguishing agent injection port is closed. It overlapped with the end face of the charging gun connected to the.

請求項５に記載の発明は、充電ケーブルから放射されるノイズを低減させるため、消火剤注入管路を導電性部材で構成することとした。   In the invention according to claim 5, in order to reduce noise radiated from the charging cable, the fire-extinguishing agent injection conduit is made of a conductive member.

請求項１の発明によれば、消火剤注入管路内に充電ケーブルを挿通させる構造だけで、外部からバッテリケース内への消火剤の注入によりバッテリの全体を浸漬させることができるだけでなく、消火剤注入管路がプロテクタとなって走行中の飛び石などの接触から充電ケーブルを保護することができる。
それ故、簡単な構造で、電動車両の充電ケーブルの損傷を抑えつつバッテリの火災を消火することができる。 According to the first aspect of the present invention, not only can the entire battery be immersed in the battery case by injecting the extinguishing agent into the battery case from the outside, only by the structure in which the charging cable is inserted into the extinguishing agent injection conduit. The charging cable can be protected from contact with a stepping stone or the like while the agent injecting conduit becomes a protector.
Therefore, the fire of the battery can be extinguished while suppressing damage to the charging cable of the electric vehicle with a simple structure.

請求項２の発明によれば、さらに充電ケーブルが消火剤注入管路内に挿通させやすくなる。
請求項３の発明によれば、さらに長時間、電動車両が放置される状況になりやすい充電時において、消火剤用注入口から異物が挿入される事態を防ぐことができる。
請求項４の発明によれば、さらに長時間、電動車両が放置される状況になりやすい充電時において、消火剤用注入口から異物が挿入される事態をより確実に防ぐことができる。 According to the second aspect of the present invention, the charging cable can be easily inserted into the extinguishing agent injection conduit.
According to the third aspect of the present invention, it is possible to prevent foreign matter from being inserted from the fire-extinguishing agent inlet during charging, which tends to leave the electric vehicle for a longer time.
According to the fourth aspect of the present invention, it is possible to more reliably prevent a foreign matter from being inserted from the fire-extinguishing agent inlet during charging when the electric vehicle is likely to be left for a longer time.

請求項５の発明によれば、充電ケーブルから放射されるノイズを、消火剤注入管路によって遮蔽し、低減することが可能となる。   According to the invention of claim 5, noise radiated from the charging cable can be shielded and reduced by the extinguishing agent injection conduit.

本発明の一実施形態に係る電動車両を、バッテリを消火する消火構造と共に示す斜視図。The perspective view which shows the electric vehicle which concerns on one Embodiment of this invention with the fire extinguishing structure which extinguishes a battery. 図１中のＡ部の充電接続部および消火剤注入口周りの構造を拡大して示す斜視図。The perspective view which expands and shows the structure around the charge connection part of A part in FIG. 1, and a fire extinguishing agent injection hole. 図２中のＢ−Ｂ線に沿う平断面図。FIG. 3 is a plan sectional view taken along line BB in FIG. 2.

以下、本発明を図１〜図３に示す一実施形態にもとづいて説明する。
図１は本発明を適用した電動車両の概略構成を示し、図２および図３は同電動車両のうちの要部となる各部の構成をそれぞれ示している。
電動車両は、例えば図１に示されるように車体１の前後方向中央に形成されている客室２、リヤ側に形成されている荷室３に渡り、フロア４（一部だけ図示）が設けられている。荷室３のフロア４下に形成されているパワーユニット室５には、後輪７（走行用の駆動輪に相当）を駆動する走行用の電動モータ８やインバータ９や車載充電器１０などが設けられている。さらに車体１の外面、例えば車体１のリヤ側の車幅方向一側面には、外部の充電設備、例えば充電スタンドの急速充電装置の充電ガン１２（図２に図示）と取り合う急速充電用の充電口１３が設けられている。ちなみに、反対側の車幅方向他側面には、家庭用電源から充電を行う普通充電用の充電口１４（一部を二点鎖線で図示）が設けられている。
また客室２のフロア４下には、当該フロア４下のスペースを占めるよう、扁平形のバッテリパック１５が据え付けられている。このバッテリパック１５は、例えば上下で分割可能な扁平箱形のバッテリケース１７内の前後部に、多数のバッテリ、例えば二次バッテリであるところの多数のリチウムイオンバッテリセルを積層してなる複数のバッテリモジュール１８を収めて構成される。ここでは、複数のバッテリモジュール１８は、車幅方向に重ねた状態で収められている。バッテリケース１７は、高い剛性強度をもつ密閉式の金属製のケース部材で形成され、感電を防いだり、外部の衝撃からバッテリモジュール１８を保護する。このバッテリパック１５が、インバータ９を介して電動モータ８に接続され、バッテリモジュール１８に蓄えたエネルギー（電力）で電動モータ８を駆動して走行が行えるようにしている。 Hereinafter, the present invention will be described based on an embodiment shown in FIGS.
FIG. 1 shows the schematic configuration of an electric vehicle to which the present invention is applied, and FIGS. 2 and 3 show the configuration of each part as the main part of the electric vehicle.
For example, as shown in FIG. 1, the electric vehicle is provided with a floor 4 (partially shown) across a cabin 2 formed in the center of the vehicle body 1 in the front-rear direction and a cargo compartment 3 formed on the rear side. ing. The power unit chamber 5 formed under the floor 4 of the cargo compartment 3 is provided with an electric motor 8 for driving a rear wheel 7 (corresponding to a driving wheel for driving), an inverter 9, an in-vehicle charger 10, and the like. It has been. Further, on the outer surface of the vehicle body 1, for example, one side surface in the vehicle width direction on the rear side of the vehicle body 1, charging for quick charging that works with a charging gun 12 (shown in FIG. 2) of an external charging facility, for example, a quick charging device of a charging stand. A mouth 13 is provided. Incidentally, the other side in the vehicle width direction on the opposite side is provided with a charging port 14 for normal charging (partly shown by a two-dot chain line) for charging from a household power source.
A flat battery pack 15 is installed below the floor 4 of the passenger cabin 2 so as to occupy the space below the floor 4. The battery pack 15 includes a plurality of batteries, for example, a plurality of lithium-ion battery cells that are secondary batteries stacked in front and rear portions in a flat box-shaped battery case 17 that can be divided vertically. The battery module 18 is housed. Here, the plurality of battery modules 18 are housed in a state of being stacked in the vehicle width direction. The battery case 17 is formed of a sealed metal case member having high rigidity and strength, and prevents electric shock and protects the battery module 18 from external impacts. The battery pack 15 is connected to the electric motor 8 via the inverter 9 so that the electric motor 8 can be driven by energy (electric power) stored in the battery module 18 so as to be able to run.

充電口１３には、充電ガン１２と接続可能な各充電端子部１３ａ（図２に図示：本願の充電接続部に相当）が設けられている。各充電端子部１３ａから延びる充電ケーブル１９は、バッテリケース１７内のバッテリモジュール１８と接続されるように配線され、充電ガン１２を通じて急速充電装置から供給される充電電力がバッテリモジュール１８へ導かれるようにしている。   The charging port 13 is provided with each charging terminal portion 13a (illustrated in FIG. 2; corresponding to the charging connection portion of the present application) that can be connected to the charging gun 12. The charging cable 19 extending from each charging terminal portion 13 a is wired so as to be connected to the battery module 18 in the battery case 17, so that charging power supplied from the quick charging device through the charging gun 12 is guided to the battery module 18. I have to.

こうした電動車両には、バッテリモジュール１８の火災を消火したり発火を抑えたりする消火構造が設けられている。この消火構造には、外部の消火装置、例えば火災の消火作業を行う消防車両や消防設備などから、バッテリモジュール１５へ直接、消火剤、ここでは消火液を供給することにより、消火が行える構造が用いられている。
この構造には、充電口１３の有るＡ部分を拡大した図２や同図２のＢ−Ｂ線で断面した図３のように車体１、ここでは車体１の外面に配置される充電口１３（急速充電用）を構成しているカップ状部材２０の座面部２０ａに設けた消火液専用の注入口２１（本願の消火剤用注入口に相当）と、この注入口２１とバッテリケース１７の壁部、例えば車幅方向一側壁との間を連通させるように配管した消火液注入管２３（本願の消火剤注入管路に相当）とを組み合わせた管路構造が用いられている。ちなみに注入口２１は、充電口１３の充電端子部１３ａ（充電接続部）と隣接した地点に配置してある。 Such an electric vehicle is provided with a fire extinguishing structure that extinguishes the fire of the battery module 18 or suppresses the fire. In this fire extinguishing structure, there is a structure that can extinguish the fire by supplying a fire extinguishing agent, here, a fire extinguishing liquid, directly from an external fire extinguishing device, for example, a fire fighting vehicle or fire fighting equipment that performs fire extinguishing work, to the battery module 15. It is used.
In this structure, a charging port 13 disposed on the outer surface of the vehicle body 1, here the vehicle body 1, as shown in FIG. 2 in which the portion A with the charging port 13 is enlarged or in FIG. 3 taken along the line BB in FIG. An inlet 21 dedicated to the extinguishing liquid provided on the seat surface portion 20a of the cup-shaped member 20 constituting (for quick charging) (corresponding to the extinguishing agent inlet of the present application), the inlet 21 and the battery case 17 A pipe structure is used in which a wall portion, for example, a fire extinguishing liquid injection pipe 23 (corresponding to the fire extinguishing agent injection pipe of the present application) piped so as to communicate with one side wall in the vehicle width direction is used. Incidentally, the injection port 21 is disposed at a point adjacent to the charging terminal portion 13a (charging connection portion) of the charging port 13.

注入口２１は、外部の消火装置である消防車両や消防設備から延びる放水ホース２５（消火剤吐出部：図３）の端部、例えば放水ノズル部２５ａが挿入可能な口径をもち、消防車両や消防設備からの消火液を、直接、受けられる構造となっている。つまり、消防車両や消防設備から供給された消火液は、消火液注入管２３によりバッテリパック１５へ導かれ、バッテリケース１７内へ注入、すなわちバッテリモジュール１８へ直接、供給できるようにしている。ちなみに、通常、注入口２１は、脱着可能な蓋体２１ａで塞いである（図２）。さらに述べると、蓋体２１ａは、注入口２１を塞いだ状態において、充電口１３に接続される充電ガン１３の端面と重なる位置（図３中の二点鎖線）に配置されていて（ここでは一部）、充電ガン１３が接続される充電状態のとき、塞いだ状態の蓋部２１ａの動きを充電ガン１３で規制して、充電中は、むやみに蓋部２１ａが外せない構造にしてある。   The inlet 21 has a diameter into which an end of a water discharge hose 25 (extinguishing agent discharge part: FIG. 3) extending from a fire fighting vehicle or fire fighting equipment that is an external fire extinguishing device, for example, a water discharge nozzle part 25a can be inserted. It has a structure that can receive fire extinguishing liquid directly from fire fighting equipment. That is, the fire extinguishing liquid supplied from the fire fighting vehicle or the fire fighting equipment is guided to the battery pack 15 by the fire extinguishing liquid injection pipe 23 and injected into the battery case 17, that is, directly supplied to the battery module 18. Incidentally, the injection port 21 is normally closed with a detachable lid 21a (FIG. 2). More specifically, the lid 21a is disposed at a position (two-dot chain line in FIG. 3) that overlaps the end face of the charging gun 13 connected to the charging port 13 in the state where the injection port 21 is closed (here, In some cases, when the charging gun 13 is in a charged state, the movement of the closed lid 21a is regulated by the charging gun 13, so that the lid 21a cannot be removed unnecessarily during charging. .

上記充電ケーブル１９は、こうした注入口２１とバッテリケース１７間をつなぐ消火液注入管２３とを活用して配線されている。具体的には、消火液注入管２３の車外側（注入口２１側）の端部は、図２および図３に示されるように二股状に分れている。この二股状部２４の一方の端部２４ａは、注入口２１に接続される。他方の端部２４ｂは、充電端子部１３ａを取り付けている背後の座壁部分に接続されている。この充電端子部１３ａとバッテリケース１７間を連通する消火液注入管２３部分内に、充電端子部１３ａからバッテリモジュール１８へ至る充電ケーブル１９を挿通させている。つまり、充電ケーブル１９の大部分を、消火液注入管２３に内蔵させる配線構造としている。   The charging cable 19 is wired using such a fire extinguishing liquid injection pipe 23 that connects the inlet 21 and the battery case 17. Specifically, the end of the fire extinguishing liquid injection pipe 23 on the vehicle exterior side (injection port 21 side) is divided into two forks as shown in FIGS. 2 and 3. One end 24 a of the bifurcated portion 24 is connected to the injection port 21. The other end 24b is connected to the back seat wall portion to which the charging terminal portion 13a is attached. A charging cable 19 extending from the charging terminal portion 13a to the battery module 18 is inserted into the portion of the fire extinguishing liquid injection tube 23 communicating between the charging terminal portion 13a and the battery case 17. That is, a wiring structure in which most of the charging cable 19 is built in the fire extinguishing liquid injection pipe 23 is employed.

また消火液注入管２３は、導電性部材で構成されており、充電ケーブル１９から放射されるノイズが、消化液注入管２３によって遮蔽され、低減される構造としている。
こうした電動車両の消火構造によると、消火液注入管２３内に充電ケーブル１９を挿通させる構造で、バッテリモジュール１８の火災を消火（発火抑制を含む）させるだけでなく、走行中、充電ケーブル１９を保護することができる。 Moreover, the fire-extinguishing liquid injection pipe 23 is made of a conductive member, and has a structure in which noise radiated from the charging cable 19 is shielded and reduced by the digestive liquid injection pipe 23.
According to the fire extinguishing structure of such an electric vehicle, the charging cable 19 is inserted into the fire extinguishing liquid injection pipe 23 so that not only the fire of the battery module 18 is extinguished (including suppression of ignition) but also the charging cable 19 is Can be protected.

すなわち、充電ケーブル１９に対しては、消火液注入管２３自体がプロテクタとなって走行中の飛び石などの接触から充電ケーブル１９を保護することができ、充電ケーブル１９の損傷を未然に防ぐことができる。
しかも、充電ケーブル１９から放射されるノイズは、導電性部材で構成された消化液注入管２３によって遮蔽され、低減できる。 That is, with respect to the charging cable 19, the fire extinguishing liquid injection pipe 23 itself can serve as a protector to protect the charging cable 19 from contact with a stepping stone or the like while traveling, and to prevent the charging cable 19 from being damaged. it can.
Moreover, the noise radiated from the charging cable 19 is shielded by the digestive fluid injection tube 23 made of a conductive member and can be reduced.

またバッテリモジュール１８の火災に対しては、充電口１３を塞いでいる扉体１３ｂ（図１に図示）を開き、注入口２１の蓋体２１ａを開き、開放した注入口２１に、例えば事故で駆け付けていた消防車両や近くの消防設備から延びる放水ホース２５の先端部を挿入して放水を行うと、対処できる。すなわち、消防車両や消防設備から、多量、高圧力の消火液が、注入口２１から、消火液注入管２３を通じて、バッテリケース１７内へ導かれ、バッテリケース１７の内部が消火液で満たされる。これにより、バッテリケース内１７のバッテリモジュール１８（二次バッテリ）の全体は、消火液で浸漬される。これで、バッテリモジュール１８は、発火が抑えられるだけでなく、冷却により安定、さらにはバッテリケース１７内で安定した放電が行われ、火災が抑えられる（消火）。   Also, for a fire of the battery module 18, the door 13 b (illustrated in FIG. 1) that closes the charging port 13 is opened, the lid 21 a of the inlet 21 is opened, and the opened inlet 21 is opened in an accident, for example. It is possible to cope with the problem by inserting the tip of the water discharge hose 25 extending from the fire fighting vehicle or the nearby fire fighting equipment. That is, a large amount of high-pressure fire extinguishing liquid is introduced into the battery case 17 from the injection port 21 through the fire extinguishing liquid injection pipe 23 from the fire fighting vehicle or fire fighting equipment, and the inside of the battery case 17 is filled with the fire extinguishing liquid. Thereby, the whole battery module 18 (secondary battery) in the battery case 17 is immersed in the fire extinguishing liquid. As a result, the battery module 18 is not only prevented from firing, but is also stabilized by cooling, and moreover stable discharge is performed in the battery case 17 to suppress fire (extinguishing).

したがって、消火液注入管２３内に充電ケーブル１９を挿通させるという簡単な構造で、充電ケーブル１９の損傷を抑えること、バッテリモジュール１８の火災を消火することの双方の実現ができる。しかも、コスト的な負担は小さくてすむ。
そのうえ、充電端子部１３ａ（充電接続部）と隣接して注入口２１を配置したことにより、充電ケーブル１９の大部分は、消火液注入管２３内に挿通しやすくなる。 Therefore, it is possible to realize both of suppressing damage to the charging cable 19 and extinguishing the fire of the battery module 18 with a simple structure in which the charging cable 19 is inserted into the fire extinguishing liquid injection tube 23. Moreover, the cost burden is small.
In addition, since the injection port 21 is disposed adjacent to the charging terminal portion 13 a (charging connection portion), most of the charging cable 19 can be easily inserted into the fire extinguishing liquid injection tube 23.

しかも、注入口２１は、充電ガン１２の端面と重なる位置に配置したので、長時間、電動車両が放置される状況になりやすい充電時、注入口２１から異物が挿入されるのを防げる。特に、蓋体２１ａで注入口２１を塞いだ状態において、充電ガン１２の端面と重なる位置に蓋体２１ａを配置したことにより、たとえ長時間、電動車両が放置される状況になりやすい充電時の際、むやみに注入口２１から異物が挿入される事態を未然に防ぐことができる。   In addition, since the injection port 21 is arranged at a position overlapping the end face of the charging gun 12, foreign matter can be prevented from being inserted from the injection port 21 during charging, which tends to leave the electric vehicle for a long time. In particular, in the state where the inlet 21 is closed with the lid 21a, the lid 21a is disposed at a position overlapping the end face of the charging gun 12, so that the electric vehicle can be left unattended for a long time. At this time, it is possible to prevent a situation in which foreign matter is unnecessarily inserted from the inlet 21.

なお、本発明は、上述した一実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲内で種々可変して実施しても構わない。例えば一実施形態では、注入口を充電接続部と隣接して設けた例を挙げたが、これに限らず、充電接続部とは隣接しない位置、すなわち充電口とは異なる位置（車体）に注入口を設けてもよい。また一実施形態では、充電端子部の近くに注入口を配置することにより、充電時、注入口から、むやみに異物が挿入されないようにしたが、これに限らず、例えば充電端子部のスパンを広くし、このスパン間に注入口を配置して、注入口が、充電口に接続される充電ガンの端面で重なるようにしても構わない。また、一実施形態では、注入口を塞いだ状態の蓋体を、充電ガンの端面と重なるように配置したことにより、長時間、電動車両が放置される状況になりやすい充電時、むやみに注入口から異物が挿入されないようにしたが、これに限らず、例えば注入口に蓋体が設けられていない場合は、注入口を、充電ガンの端面と重なる位置に配置し、注入口が、充電ガンの端面によって一部または全体が覆われるようにしてよい。また、一実施形態では、消火剤注入管路は、導電性部材で構成されるものとしたが、これに限らず、例えば樹脂部材等によって構成してもよい。さらに述べると、注入口から消火剤を注入した際に、消火剤注入管路を消火剤が流通可能な部材で構成していればよい。これによって、消火剤注入管路がプロテクタとなり、充電ケーブルを走行中の飛び石などから保護することが可能となる。もちろん、急速充電用の充電ケーブルでなく、普通充電用の充電ケーブルに本発明を適用してもよい。   Note that the present invention is not limited to the above-described embodiment, and various modifications may be made without departing from the spirit of the present invention. For example, in one embodiment, the example in which the injection port is provided adjacent to the charging connection portion has been described. An inlet may be provided. Further, in one embodiment, by arranging the inlet near the charging terminal portion, foreign substances are not inserted from the inlet at the time of charging, but this is not a limitation. For example, the span of the charging terminal portion is increased. The inlet may be widened and an inlet may be arranged between the spans so that the inlet overlaps with the end face of the charging gun connected to the charging port. In one embodiment, the lid with the inlet closed is arranged so as to overlap the end face of the charging gun, so that the electric vehicle is likely to be left unattended for a long time. Although foreign matter was not inserted from the inlet, this is not limiting. For example, when the inlet is not provided with a lid, the inlet is placed at a position overlapping the end face of the charging gun, and the inlet is charged. A part or the whole may be covered by the end face of the gun. Moreover, in one Embodiment, although the fire extinguisher injection | pouring pipe line shall be comprised with an electroconductive member, you may comprise not only this but a resin member etc., for example. More specifically, it is only necessary that the extinguishing agent injection conduit is constituted by a member through which the extinguishing agent can flow when the extinguishing agent is injected from the injection port. As a result, the fire extinguishing agent injection conduit serves as a protector, and the charging cable can be protected from a stepping stone during traveling. Of course, you may apply this invention to the charging cable for normal charging instead of the charging cable for quick charging.

７ 後輪（駆動輪）
８ 電動モータ
１２ 充電ガン
１３ 充電口
１３ａ 充電端子部（充電接続部）
１５ バッテリパック
１７ バッテリケース
１８ バッテリモジュール（二次バッテリ）
１９ 充電ケーブル
２１ 注入口（消火剤用注入口）
２１ａ 蓋体
２３ 消火液注入管（消火剤注入管路）
２５ 消防車両や消防設備の放水ホース（消火装置） 7 Rear wheels (drive wheels)
8 Electric motor 12 Charging gun 13 Charging port 13a Charging terminal part (charging connection part)
15 Battery Pack 17 Battery Case 18 Battery Module (Secondary Battery)
19 Charging cable 21 Inlet (extinguishing port for fire extinguishing agent)
21a Lid 23 Fire extinguishing liquid injection pipe (extinguishing agent injection pipe)
25 Water discharge hose (fire extinguishing device) for fire fighting vehicles and fire fighting equipment

Claims (5)

電動車両の駆動輪を駆動する電動モータと、
前記電動車両の車体に設けられ、バッテリをバッテリケース内に収めてなり、前記電動モータへ駆動電力を供給するバッテリパックと、
前記車体に設けられ、充電設備の充電ガンと接続可能な充電接続部と、
前記充電接続部から前記バッテリパックのバッテリに渡り配線され、前記充電ガンを通じて前記充電設備からの充電電力をバッテリへ導く充電ケーブルと
を有した電動車両において、
前記車体に設けられ、火災の消火作業を行う消火装置から供給される消火剤を受ける消火剤用注入口と、
前記消火剤用注入口と前記バッテリケース内とを連通するように設けられ、前記消火剤用注入口から注入される消火剤を前記バッテリケース内へ導く消火剤注入管路とを有し、
前記消火剤注入管路内に前記充電ケーブルを挿通させる
ことを特徴とする電動車両の消火構造。 An electric motor for driving the drive wheels of the electric vehicle;
A battery pack that is provided on a body of the electric vehicle and that houses a battery in a battery case and supplies driving power to the electric motor;
A charging connection provided on the vehicle body and connectable to a charging gun of a charging facility;
In the electric vehicle having a charging cable that is wired from the charging connection portion to the battery of the battery pack and that guides charging power from the charging facility to the battery through the charging gun,
A fire extinguisher inlet for receiving a fire extinguisher provided from a fire extinguishing device that is provided in the vehicle body and performs a fire extinguishing work;
A fire-extinguishing agent injection pipe that is provided so as to communicate between the fire-extinguishing agent inlet and the battery case, and that guides the fire-extinguishing agent injected from the fire-extinguishing agent inlet into the battery case;
The fire extinguishing structure for an electric vehicle, wherein the charging cable is inserted into the fire extinguishing agent injection conduit. 前記消火剤用注入口は、前記充電接続部に隣接して配置されることを特徴とする請求項１に記載の電動車両の消火構造。   The fire extinguishing structure for an electric vehicle according to claim 1, wherein the fire-extinguishing agent inlet is disposed adjacent to the charging connection portion. 前記消火剤用注入口は、前記充電接続部に接続される充電ガンの端面と重なることを特徴とする請求項２に記載の電動車両の消火構造。   The fire extinguishing structure for an electric vehicle according to claim 2, wherein the fire-extinguishing agent inlet overlaps an end face of a charging gun connected to the charging connection portion. 前記消火剤用注入口は、脱着可能な蓋体で塞がれ、
前記蓋体は、前記消火剤用注入口を塞いだ状態において、前記充電接続部に接続される充電ガンの端面と重なることを特徴とする請求項２または請求項３に記載の電動車両の消火構造。 The fire extinguishing agent inlet is closed with a removable cover,
4. The fire extinguishing of an electric vehicle according to claim 2, wherein the lid body overlaps an end face of a charging gun connected to the charging connection portion in a state where the injection port for the extinguishing agent is closed. Construction. 前記消火剤注入管路は、導電性部材で構成されることを特徴とする請求項１乃至請求項５のいずれか一つに記載の電動車両の消火構造。   The fire-extinguishing structure for an electric vehicle according to any one of claims 1 to 5, wherein the fire-extinguishing agent injection conduit is formed of a conductive member.
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JP2022192000A (en) * 2021-06-16 2022-12-28 国立消防研究院 Fire-extinguishing apparatus of electric vehicle and electric vehicle including the same
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KR102531013B1 (en) * 2022-03-17 2023-05-12 김동휘 Fire detection and extinguishing method for electric mobility battery pack
KR102531012B1 (en) * 2022-03-17 2023-05-11 김동휘 Electric mobility charging cable having fire extinguishing agent pipes, and inlet, connector and battery pack integrated with the same
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CN115352297A (en) * 2022-08-24 2022-11-18 东风柳州汽车有限公司 Charging gun for fire extinguishing
KR20240029601A (en) * 2022-08-25 2024-03-06 양상일 Battery fire suppression system for electric vehicles
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