KR20210008543A - Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen - Google Patents

Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen Download PDF

Info

Publication number
KR20210008543A
KR20210008543A KR1020210000160A KR20210000160A KR20210008543A KR 20210008543 A KR20210008543 A KR 20210008543A KR 1020210000160 A KR1020210000160 A KR 1020210000160A KR 20210000160 A KR20210000160 A KR 20210000160A KR 20210008543 A KR20210008543 A KR 20210008543A
Authority
KR
South Korea
Prior art keywords
fire
liquid nitrogen
electric vehicle
fire extinguishing
battery pack
Prior art date
Application number
KR1020210000160A
Other languages
Korean (ko)
Inventor
유병철
Original Assignee
유병철
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 유병철 filed Critical 유병철
Priority to KR1020210000160A priority Critical patent/KR20210008543A/en
Publication of KR20210008543A publication Critical patent/KR20210008543A/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • 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
    • 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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0018—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using gases or vapours that do not support combustion, e.g. steam, carbon dioxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/0307—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for using generators driven by a machine different from the vehicle motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • 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

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention relates to an automatic fire extinguishing device for an electric vehicle battery exclusive frame using liquid nitrogen. More particularly, the present invention relates to an automatic fire extinguishing device for an electric vehicle battery exclusive frame for extinguishing a fire in the initial stage by emitting liquid nitrogen directly into a nozzle through fire determination of an automatic fire extinguishing system control unit and the operation of an electric valve according to a fire detection signal due to the thermal runaway phenomenon caused by the occurrence of abnormalities in the cells and modules of lithium-ion batteries installed in the frame dedicated to electric vehicle batteries, which leads to hydrogen explosion and metal fire due to off-gas generation.

Description

액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치{Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen}Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen}

본 발명은 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치에 관한 것으로서, 전기차 배터리 전용프레임은 다수 개의 리튬이온 배터리가 집약되어 팩키지화로 밀실하게 설치되어 있고 전기자동차 배터리부의 화재 발생시 빠른 감지 및 신호에 의해 EPCU(Electric Power Control Unit)의 효과적인 제어로 초기에 빠른 진화를 하여 차량 및 인명피해를 최소화 할 수 있는 전기차 배터리 전용프레임 자동소화장치에 관한 것이다.The present invention relates to an automatic fire extinguishing device for an electric vehicle battery exclusive frame using liquid nitrogen, wherein a plurality of lithium ion batteries are concentrated and tightly installed in a package, and by quick detection and signals when a fire occurs in the electric vehicle battery unit. It relates to an automatic fire extinguishing system for an electric vehicle battery dedicated frame that can minimize damage to vehicles and humans by rapidly evolving early with effective control of EPCU (Electric Power Control Unit).

현재 전기자동차 화재시 진화할 수 있는 제어장치 및 시스템이 없어 전소 또는 화재확산이 되는 문제가 발생하고 있어 본 발명은 이러한 문제를 해결하기 위한 것이다. Currently, there is no control device and system capable of extinguishing an electric vehicle fire, resulting in a problem of burning out or spreading fire, and the present invention is intended to solve this problem.

전기자동차의 배터리 전용프레임은 차량 하부에 설치되어 리튬이온으로 만들어진 수많은 셀로 이루어져 있으며, 셀이 모여서 모듈이 되고 이 모듈을 집약적 구조로 패키지화 하여 자동차 배터리 프레임을 제작 설치한다. The battery-only frame of an electric vehicle is composed of numerous cells made of lithium-ion installed under the vehicle, and the cells are assembled to form a module, and this module is packaged in an intensive structure to manufacture and install a vehicle battery frame.

리튬이온 배터리는 리튬이온이 양극과 음극을 거쳐 충전 및 방전하는 화학적 에너지저장장치로서 다른 종류의 배터리보다 빠른 충전과 함께 출력밀도까지 높아 오랜시간 사용이 가능하여, 상대적으로 부피가 적고 경량화할 수 있으며, 완전방전이 되지 않은채 충전하면 본래의 구동시간보다 구동시간이 감소하는 메모리 효과가 없으며, 친환경적이며 상대적으로 유지보수비용이 적다. 하지만 다른 종류의 배터리와 비교했을 때 화재에 취약하다는 단점이 존재한다. Lithium-ion batteries are chemical energy storage devices in which lithium ions are charged and discharged through the positive and negative electrodes. They can be used for a long time due to their higher power density and faster charging than other types of batteries, making them relatively small in volume and lightweight. , If charging without complete discharge, there is no memory effect that reduces the driving time than the original driving time, and it is eco-friendly and relatively low maintenance cost. However, it has the disadvantage of being vulnerable to fire when compared to other types of batteries.

배터리의 화재는 주로 배터리 셀의 열폭주 현상에 의해 발생되고있으며, 열폭주현상은 고도의 산화성 양극과 고도의 환원성 음극이 함께 만나 급속도로 자기발열하는 화학반응을 말한다. 열폭주 현상이 발생했을 때 배터리 셀은 저장된 에너지를 매우 빠르게 방출하게 되며, 배터리 셀에 충전된 에너지가 많을 수록 열폭주 반응이 더욱 활발하게 발생한다. 특히 리튬이온 배터리의 경우 다른 배터리보다 에너지밀도가 높기 때문에 열 폭주 현상이 매우 급속도로 일어난다. Battery fire is mainly caused by thermal runaway of battery cells, and thermal runaway refers to a chemical reaction in which a highly oxidizing anode and a highly reducing cathode meet together to generate rapid self-heating. When a thermal runaway phenomenon occurs, the battery cell releases stored energy very quickly, and the more energy charged in the battery cell, the more active the thermal runaway reaction occurs. In particular, lithium-ion batteries have a higher energy density than other batteries, so thermal runaway occurs very rapidly.

열폭주 현상의 원인으로는 과충전, 과방전, 내부단락사고, 단자접촉불량, 충전불량, 기계적충격, 전기적충격 등이 있다. 일반적으로 리튬이온 배터리 내부 온도가 170℃이상일 때 열폭주현상이 발생하고 70℃이하 상태에서도 발열에 적합한 환경에 놓이면 열폭주가 1~2일 후 발생한다. 열폭주현상이 발생했을때 리튬이온 배터리의 내부 압력이 증가하고 내부의 전해액이 기화되며 이후 리튬이온 배터리가 팽창해 전해액이 분출되고, 백색연기 off gas가 발생해 수소농도가 높아져 폭발 및 폭음과 함께 금속화재로 발전하게 된다. 열폭주현상으로 발생한 화재는 연소에 필요한 산소를 차단하더라도 배터리에 충전된 에너지를 모두 방출할 때 까지 지속되며, 화재와 함께 일산화탄소(CO)와 아세틸렌(C2H2), 수소(H2), 유독성과 가연성 가스가 다량 방출된다. The causes of thermal runaway include overcharge, overdischarge, internal short-circuit, terminal contact failure, poor charging, mechanical shock, and electrical shock. In general, thermal runaway occurs when the internal temperature of a lithium-ion battery is above 170℃, and thermal runaway occurs after 1 to 2 days when placed in an environment suitable for heat generation even under 70℃. When thermal runaway occurs, the internal pressure of the lithium-ion battery increases and the internal electrolyte is evaporated.After that, the lithium-ion battery expands and the electrolyte is ejected, and white smoke off-gas is generated, causing the hydrogen concentration to rise, resulting in explosions and binge drinking. It develops into a metal fire. A fire caused by thermal runaway continues until all the energy charged in the battery is released, even if oxygen required for combustion is blocked. With the fire, carbon monoxide (CO), acetylene (C 2 H 2 ), hydrogen (H 2 ), Large quantities of toxic and flammable gases are released.

전기차 배터리 전용프레임에 사용되는 리튬이온전지 배터리의 수많은 셀을 패키지 화로 만들고 전기차량의 하부에 설치되기에 일반적인 소화기 및 시스템으로 화재 진압이 불가능하며, 차량 내부에 소화기를 비치하여도 화재발생 시 온도가 최대 1100℃ 이상 상승하여 금속화재로 전이되기에 A급, B급, C급 소화기로 조기진압이 어렵고 주변의 가연물과 건축물까지 빠르게 확산되어 화재와 유독가스가 동시에 발생되면서 전기차량이 전소되는 문제점이 있다.Since numerous cells of the lithium-ion battery used in the exclusive frame for electric vehicle batteries are packaged and installed in the lower part of the electric vehicle, it is impossible to extinguish a fire with a general fire extinguisher and system. Even if a fire extinguisher is provided inside the vehicle, the temperature in case of fire occurs. It is difficult to extinguish early with Class A, Class B, and Class C fire extinguishers as it rises up to 1100℃ and is transferred to a metal fire, and it spreads rapidly to surrounding combustibles and buildings, causing both fire and toxic gas to burn out. have.

상술한 문제점을 해결하기 위해 본 발명에 따른 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치는 전기 자동차의 차체 하부에 설치되는 배터리 전용의 프레임에 다수 개의 리튬이온 배터리가 패키지화되어 있어 일반적인 소화기로는 소화적응성이 없어 리튬이온 배터리의 화재시 소화가 불가능하므로 액화질소를 이용하여 배터리 패키지 내부에 배관과 노즐을 설치하여 열, 연기, 압력, 불꽃 등을 감지하여 액화질소를 신속히 방출하여 노즐 끝단에서 공기와 접촉하는 동시에 기체상태로 밀실 된 전체 공간을 급속확산과 함께 급속냉각, 급속질식의 효과로 전기 자동차 배터리의 화재를 자동으로 소화하는 장치에 관한 것이다In order to solve the above-described problem, the automatic fire extinguishing device for an electric vehicle battery exclusive frame using liquid nitrogen according to the present invention is packaged in a battery-only frame installed under the vehicle body of an electric vehicle. Since it is not adaptable, it is impossible to extinguish a fire in a lithium-ion battery. Therefore, by installing a pipe and a nozzle inside the battery package using liquid nitrogen, it detects heat, smoke, pressure, flame, etc., and quickly releases the liquid nitrogen. It relates to a device that automatically extinguishes a fire of an electric vehicle battery with the effect of rapid cooling and rapid suffocation as well as rapid diffusion of the entire space closed in gaseous state while in contact.

상술한 목적을 달성하기 위해 본 발명의 목적은 전기차 배터리 전용프레임 자동소화장치는 전기 자동차의 차체 하부에 설치되는 여러 개의 리튬이온 셀과 모듈의 배터리가 패키지화되어 있어 보닛 및 배터리 팩의 화재시에 감지 및 소화장치 등이 없어 화재를 진압과 소화가 불가능하기에 이를 제어하고 소화하기 위해서 전기차 배터리 전용프레임용 자동소화장치를 제공하기 위함 이다.In order to achieve the above object, it is an object of the present invention to detect a fire in a bonnet and a battery pack because the automatic fire extinguishing device for an electric vehicle battery-only frame is packaged with several lithium-ion cells installed under the vehicle body of an electric vehicle and a battery of a module. It is to provide an automatic fire extinguishing device for an electric vehicle battery exclusive frame in order to control and extinguish a fire because there is no fire extinguishing device and so on.

또한, 상기 EPCU의 자동소화장치 제어부는, 보닛 부의 화재발생시 감지에 의해서 전자밸브의 작동신호로 액화질소 탱크의 밸브를 열어 액화질소가 보닛의 화재를 제어하기 위해 분사되도록 하는 것을 특징을 겸하기도 한다.In addition, the automatic fire extinguishing device control unit of the EPCU also has a feature that detects when a fire occurs in the bonnet and opens the valve of the liquid nitrogen tank with an operation signal of the electromagnetic valve so that the liquid nitrogen is injected to control the fire of the bonnet. .

또한, 상기 액화질소 탱크의 누설 및 부족량을 수시로 감지하여 질소발생기로 보충과 함께 일정압력을 유지하도록 하는 것을 특징으로 한다.In addition, it is characterized in that the leakage and insufficient amount of the liquid nitrogen tank are detected from time to time to maintain a constant pressure while replenishing with a nitrogen generator.

본 발명에 따른 전기차 배터리 전용프레임 자동소화장치는, 전기 자동차의 차체 하부 프레임에 다수 개의 리튬이온 배터리가 수납되어 있고, 배터리팩 외부에 배관 설치 및 내부에 방사 노즐이 설치되어 있고, 불활성가스인 액화질소가 가압 저장되어 있는 가압용기가 상기의 전기차에 설치되어 있고, 액화질소 탱크에 저장되어 있는 불활성 액체를 이송할 수 있는 분기 관이 연결되어 T자형을 이루고, 배터리 팩의 각 노즐에 연결되는 배관은 팩과 밀착되어 본딩 마감으로 설치하고, 노즐은 배터리 팩에 삽입시 압력을 가해 체결되어 패킹에 의해 누설이 없고 액화질소 방출시 분리되지 않도록 견고히 설치되어 있는 것을 특징으로 한다.In the automatic fire extinguishing device for an electric vehicle battery exclusive frame according to the present invention, a plurality of lithium-ion batteries are accommodated in a lower frame of the vehicle body of an electric vehicle, a pipe is installed outside the battery pack, and a radiating nozzle is installed inside, and the inert gas is liquefied. A pressurized container in which nitrogen is pressurized and stored is installed in the above electric vehicle, and a branch pipe capable of transferring the inert liquid stored in the liquid nitrogen tank is connected to form a T shape, and a pipe connected to each nozzle of the battery pack It is in close contact with the silver pack and is installed with a bonding finish, and the nozzle is securely installed so that there is no leakage by the packing and is not separated when liquid nitrogen is discharged by applying pressure when inserted into the battery pack.

또한, 상기 자동소화장치 제어부는, 보닛 또는 배터리 팩의 화재신호로 인해 해당 전자밸브에 작동신호를 보내면 전자밸브를 열어 방사 노즐로부터 액화질소가 분사되도록 하는 것을 특징으로 한다.In addition, the automatic fire extinguishing device control unit is characterized in that when an operation signal is sent to a corresponding solenoid valve due to a fire signal from a bonnet or a battery pack, the solenoid valve is opened and the liquid nitrogen is injected from the radiation nozzle.

또한, 본 발명에 따른 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치는, 점검이 용이한 위치에 설치되어 상기 화재감지센서 및 각 전기 자동차 제어부와 원활한 실시간 통신을 하며, 평상시에는 전자밸브가 닫혀 있고 화재시 감지에 의해서 제어부 판단신호로 액화질소 탱크 밸브를 열고, 가압된 불활성 액화질소를 방출하여 노즐을 통한 후 기체로 상태변화 되면서 급속냉각과 급속질식을 통한 화재제어를 하는 것을 특징으로 한다.In addition, the automatic fire extinguishing device for an electric vehicle battery exclusive frame using liquefied nitrogen according to the present invention is installed in a location where inspection is easy to perform smooth real-time communication with the fire detection sensor and each electric vehicle control unit, and the solenoid valve is normally closed. It is characterized in that fire control is performed through rapid cooling and rapid suffocation while opening the liquid nitrogen tank valve as a control signal by detection in case of fire, and changing the state to gas after releasing pressurized inert liquid nitrogen through the nozzle.

이상 설명한 바와 같은 본 발명에 따르면, 다수 개의 리튬이온 셀과 모듈로 구성된 배터리를 집약화하여 패키지작업 후 전기 자동차 하부 프레임에 밀실 하게 설치하므로 배터리 부의 화재 발생시, 하부에서 화재발생으로 열폭주현상과 같이 화염과 유독가스 등이 발생하므로 초기에 화재를 감지하여 배터리 팩의 내부에서 전기차 배터리 프레임용 자동소화장치를 제공하여 초기소화를 할 수 있다.According to the present invention as described above, the battery composed of a plurality of lithium-ion cells and modules is integrated and tightly installed on the lower frame of the electric vehicle after package work. Therefore, when a fire occurs in the battery part, a fire is generated from the lower part, resulting in a flame like thermal runaway phenomenon. Since fire is detected at an early stage and toxic gas is generated, an automatic fire extinguishing device for an electric vehicle battery frame is provided inside the battery pack to perform initial fire extinguishing.

또한, 본 발명에 따르면, 액화질소는 불활성 가스로 노즐에서 분출과 함께 기체상태 변화로 급속냉각, 급속질식 효과로 전기차 배터리팩 내부의 화재를 초기에 진화할 수 있도록 하는 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치를 제공할 수 있다.In addition, according to the present invention, liquefied nitrogen is an inert gas, which is used for electric vehicle batteries using liquefied nitrogen that allows rapid cooling by changing gaseous state with ejection from the nozzle, and extinguishing fire inside the electric vehicle battery pack with rapid suffocation effect. A frame automatic fire extinguishing device can be provided.

도 1은 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치의 개략도이다.
도 2는 본 발명의 제1 실시예에 따른 액화질소 발생기 및 저장탱크에서 방출을 도시한 설명도.
도 3은 본 발명에서 배터리팩의 내부에 방사 노즐 설치의 상태 설명도.
도 4는 본 발명에서 소화배관 설치 상태를 나타낸 설명도.
도 5는 본 발명에서 제어부의 자동소화 동작 순서도.1 is a schematic diagram of an automatic fire extinguishing device for an electric vehicle battery exclusive frame using liquid nitrogen.
Figure 2 is an explanatory view showing the discharge from the liquid nitrogen generator and storage tank according to the first embodiment of the present invention.
Figure 3 is an explanatory view of the state of installing the radiation nozzle inside the battery pack in the present invention.
Figure 4 is an explanatory diagram showing a fire extinguishing pipe installation state in the present invention.
Figure 5 is a flow chart of the automatic fire extinguishing operation of the control unit in the present invention.

이하, 본 발명의 바람직한 실시예를 도면을 참고하여 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1은 본 발명의 제1 실시예에 따른 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치를 도시한 도면이다.1 is a view showing an automatic fire extinguishing apparatus for an electric vehicle battery exclusive frame using liquid nitrogen according to a first embodiment of the present invention.

도 2를 참조하면, 본 발명의 제1 실시예에 따른 전기차 배터리 전용프레임 자동소화장치는, 전기차 액화질소 발생기(100), 액화질소 탱크(101), 액화질소 공급밸브(102), 분배기(103), 평상시 상태를 점검할 수 있는 압력계(104), 유지보수 및 점검시 수동으로 조작하는 액화질소 탱크 밸브(105), 보닛 또는 배터리팩의 화재에 따라 액화질소를 공급하는 전자밸브(106), 신호케이블(107), 배터리팩 액화질소배관(108), 본넷 액화질소 배관(109)이 구성되어 설치되어 있다.Referring to FIG. 2, the automatic fire extinguishing apparatus for an electric vehicle battery exclusive frame according to the first embodiment of the present invention includes an electric vehicle liquefied nitrogen generator 100, a liquefied nitrogen tank 101, a liquefied nitrogen supply valve 102, and a distributor 103. ), a pressure gauge 104 that can check the normal condition, a liquid nitrogen tank valve 105 that is manually operated during maintenance and inspection, an electromagnetic valve 106 that supplies liquid nitrogen in response to a fire from a bonnet or battery pack, A signal cable 107, a battery pack liquid nitrogen pipe 108, and a bonnet liquid nitrogen pipe 109 are constructed and installed.

EPCU에서는 화재발생시 각종 감지(열, 연기, 압력, 불꽃)에 의하여 화재 여부를 판단 후 동작신호를 신호케이블(107)을 통해 전자밸브(106)에 전송하여 밸브가 오픈되도록 하여 배터리팩 액화질소 배관(108) 또는 보닛 액화질소 배관(109)으로 방출한다.In EPCU, when a fire occurs, it determines whether a fire has occurred by various detections (heat, smoke, pressure, flame), and then transmits an operation signal to the solenoid valve 106 through the signal cable 107 so that the valve is opened and the battery pack liquefied nitrogen piping. (108) or bonnet liquid nitrogen pipe (109).

또한, 액화질소발생기(100)는 평상시 액화질소 탱크(101)의 누설 및 부족한 액화질소량을 보충하는 역할을 하며 화재시에는 최대운전으로 질소 탱크(101)와 배터리팩 액화질소 배관(108), 보닛 액화질소 배관(109)으로 액화질소를 신속히 보충할 수 있다.In addition, the liquefied nitrogen generator 100 plays a role of supplementing the leakage and insufficient amount of liquefied nitrogen in the liquefied nitrogen tank 101 in normal times. In case of fire, the nitrogen tank 101 and the battery pack liquefied nitrogen piping 108 and the bonnet are The liquid nitrogen pipe 109 can be quickly replenished with liquid nitrogen.

도 3은 본 발명에서 액화질소 방출노즐(200)과 누설방지패킹(201) 상태의 나타낸 도면이다.3 is a view showing the state of the liquid nitrogen discharge nozzle 200 and the leak-proof packing 201 in the present invention.

방출노즐은 풋터치 형태로 쉽게 조립되며 이물질이나 습기 등이 들어오지 못하도록 하고 또 액화질소의 방출에 다른 압력에서도 누설이 없도록 누설방지패킹(201)을 나타낸 도면이다.The discharge nozzle is easily assembled in the form of a foot touch, and is a view showing the leak-proof packing 201 so that foreign matter or moisture does not enter, and there is no leakage even at other pressures when the liquid nitrogen is discharged.

도 4는 본 발명에서 액화질소발생기(100)와 액화질소 탱크(101)를 견고히 고정되도록 고정브라켓(300)을 설치하며, 보닛 내부의 화재발생에 따른 감지와 제어부 판단에 따른 신호로 액화질소의 방출시 보닛 방출노즐(301)이 연결되도록 설치하며 배터리팩 화재시 감지에 의해서 액화질소 방출시 4방향 분배기(302)와 우측노즐(303), 좌측노즐(304), 중앙노즐(305)을 통하여 -196℃의 액화질소가 방출되어 공기 중 기체로 상태 변화되어 급속냉각(-78.5℃)과 급속질식을 동시에 최단시간으로 이루어져 화재를 초기에 자동으로 소화한다.4 is a mounting bracket 300 to firmly fix the liquefied nitrogen generator 100 and the liquefied nitrogen tank 101 in the present invention, and a signal according to detection and control determination according to the occurrence of a fire inside the bonnet It is installed so that the bonnet discharge nozzle 301 is connected when discharged, and when liquefied nitrogen is discharged by detection of a battery pack fire, the four-way distributor 302, the right nozzle 303, the left nozzle 304, and the center nozzle 305 are used. Liquefied nitrogen at -196℃ is released and changed into gas in the air, and rapid cooling (-78.5℃) and rapid suffocation are simultaneously performed in the shortest time to extinguish fire automatically at the beginning.

100 : 액화질소 발생기 101 : 액화질소 탱크 102 : 액화질소공급밸브
103 : 분배기 104 : 압력계
105 : 액화질소팅크밸브 106 : 전자밸브
107 : 신호케이블 108 : 배터리팩 액화질소 공급배관
109 : 보닛 액화질소 공급배관 200 : 액화질소 방출노즐
201 : 누설방지 패킹 300 : 고정 브라켓
301 : 보닛 방출노즐 302 : 4방향 분배기
303 : 우측 방출노즐 304 : 좌측 방출노즐
305 : 중앙노즐 전자밸브100: liquefied nitrogen generator 101: liquefied nitrogen tank 102: liquefied nitrogen supply valve
103: distributor 104: pressure gauge
105: liquefied nitrogen tincture valve 106: solenoid valve
107: signal cable 108: battery pack liquid nitrogen supply pipe
109: bonnet liquid nitrogen supply pipe 200: liquid nitrogen discharge nozzle
201: leak-proof packing 300: fixing bracket
301: bonnet discharge nozzle 302: 4-way distributor
303: right discharge nozzle 304: left discharge nozzle
305: central nozzle solenoid valve

Claims (6)

전기차 배터리 전용프레임 차량에 대해서, 화재발생 온도, 연기 유무, 배터리팩 압력, 불꽃을 감지하는 신호를 통해서 EPCU의 소화장치제어부 화재판단으로 전자밸브가 동작하여 전기차 배터리 전용프레임의 배터리팩에 설치된 액화질소 방출노즐로 액화질소가 분사되어 급속냉각과 급속질식으로 초기소화를 통한 화재소화와 확산을 방지하는 장치이다.Liquefied nitrogen installed in the battery pack of the frame exclusively for electric vehicle batteries by operating the solenoid valve by the fire judgment of the EPCU's fire extinguishing system control unit through signals that detect the fire occurrence temperature, smoke presence, battery pack pressure, and flame. It is a device that prevents fire extinguishing and spreading through initial extinguishing through rapid cooling and rapid suffocation by spraying liquid nitrogen through the discharge nozzle. 청구항 1에 있어서,
전기차 배터리 팩과 보닛에 설치된 센서로 화재시 발생하는 열, 연기, 압력, 불꽃을 감지하여 자동소화제어부에서 설정조건이 되었을 경우에 화재신호로 판단하여 액화질소 탱크에 연결된 전자밸브를 동작시켜 보닛화재 또는 배터리팩의 화재에 따라 해당 밸브를 오픈하여 방출노즐을 통해 액화질소가 방사되어 조기소화하는 것을 특징으로 하는 소화장치The method according to claim 1,
The bonnet fires by detecting the heat, smoke, pressure, and flame generated in the event of a fire with sensors installed on the battery pack and bonnet of the electric vehicle, and when the set conditions are met by the automatic fire control unit, it is judged as a fire signal, and the solenoid valve connected to the liquid nitrogen tank is operated. Or a fire extinguishing device, characterized in that in response to a fire of the battery pack, the valve is opened and liquefied nitrogen is radiated through the discharge nozzle to extinguish early. 청구항 2에 있어서,
센서 부와 자동소화장치부, 그리고 전자밸브를 구동하는 전원은 차량발전기와 배터리에서 공급되는 전력원을 사용하는 것을 특징으로 하는 장치The method according to claim 2,
A device, characterized in that the power source for driving the sensor unit, the automatic fire extinguishing device unit, and the solenoid valve uses a power source supplied from the vehicle generator and the battery. 청구항 3에 있어서,
액화질소 발생기는 평상시 차량의 자체 발전기전원을 이용하여 액화질소의 누설 및 압력이 저하될 때 가동되는 액화질소 탱크를 일정압력이상 가압하여 소화 약제를 방사노즐을 통해 즉시 방사할 수 있도록 하는 것을 특징으로 하는 장치The method of claim 3,
The liquid nitrogen generator is characterized in that it pressurizes the liquid nitrogen tank, which is operated when liquid nitrogen leaks and the pressure decreases, using the vehicle's own generator power at a normal time, so that the fire extinguishing agent can be immediately discharged through the spinning nozzle. Device 청구항 4에 있어서,
방사 노즐은 배터리팩에 쉽게 체결될 수 있도록 풋터치 방식으로 압력을 가하면 쉽게 홀로 삽입되어 견고히 고정될 수 있도록 제작하고 평상시 수분 및 이물질의 침투가 없도록 패킹을 설치며, 배관은 배터리팩의 외부에 밀착하여 본딩처리에 따른 진동과 이탈을 방지하는 장치The method of claim 4,
The spinning nozzle is manufactured so that it can be easily inserted into the hole when pressure is applied in a foot-touch method so that it can be easily connected to the battery pack, and a packing is installed so that moisture and foreign substances do not penetrate normally, and the piping is in close contact with the outside of the battery pack. Device to prevent vibration and separation due to bonding treatment 청구항 1에 있어서,
전기차 배터리 전용프레임의 화재 및 열폭주현상으로 인한 화재에 적응성 있는 액체질소를 가압탱크에 저장하여 전자밸브 작동에 의해 전기차 배터리팩과 보닛의 화재를 신속히 제어할 수 있는 특징으로 구현되는 액화질소를 이용한 전기차 배터리 전용프레임 자동소화장치.





The method according to claim 1,
Using liquefied nitrogen, which is a feature that can quickly control the fire of the electric vehicle battery pack and bonnet by operating the solenoid valve by storing liquid nitrogen that is adaptable to the fire caused by the fire and thermal runaway of the EV battery exclusive frame in the pressurized tank. Automatic fire extinguishing system for exclusive use of electric vehicle batteries.
KR1020210000160A 2021-01-04 2021-01-04 Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen KR20210008543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020210000160A KR20210008543A (en) 2021-01-04 2021-01-04 Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020210000160A KR20210008543A (en) 2021-01-04 2021-01-04 Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen

Publications (1)

Publication Number Publication Date
KR20210008543A true KR20210008543A (en) 2021-01-22

Family

ID=74309829

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020210000160A KR20210008543A (en) 2021-01-04 2021-01-04 Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen

Country Status (1)

Country Link
KR (1) KR20210008543A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114171826A (en) * 2021-12-15 2022-03-11 中国船级社上海规范研究所 Fire extinguishing device for ship-borne lithium battery electric vehicle and application method thereof
WO2023275416A1 (en) * 2021-06-28 2023-01-05 Minarro Perez Jose Fernando Device for extinguishing fires with liquid nitrogen
EP4162984A1 (en) * 2021-10-11 2023-04-12 Sp/f 28. juni 2000 System, vehicle parking environment and method for extinguishing a fire in an electric vehicle
KR102564158B1 (en) * 2022-10-05 2023-08-10 주식회사 리모빌리티 Fire extinguishing device and system for battery fire suppression of electric vehicles
KR20230133543A (en) 2022-03-11 2023-09-19 (주)포스코이앤씨 Apparatus for fire extinguishing of electric vehicle
KR102607431B1 (en) * 2022-12-26 2023-11-30 (주)빅텍스 Battery fire prevention system for electric vehicle, battery module for electric vehicle including the same and electric vehicle
KR20240048847A (en) 2022-10-07 2024-04-16 주식회사 대창 모터스 Fire extinguishing pad for charging battery pack of electric vehicle and Manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023275416A1 (en) * 2021-06-28 2023-01-05 Minarro Perez Jose Fernando Device for extinguishing fires with liquid nitrogen
EP4162984A1 (en) * 2021-10-11 2023-04-12 Sp/f 28. juni 2000 System, vehicle parking environment and method for extinguishing a fire in an electric vehicle
CN114171826A (en) * 2021-12-15 2022-03-11 中国船级社上海规范研究所 Fire extinguishing device for ship-borne lithium battery electric vehicle and application method thereof
KR20230133543A (en) 2022-03-11 2023-09-19 (주)포스코이앤씨 Apparatus for fire extinguishing of electric vehicle
KR102564158B1 (en) * 2022-10-05 2023-08-10 주식회사 리모빌리티 Fire extinguishing device and system for battery fire suppression of electric vehicles
KR20240048847A (en) 2022-10-07 2024-04-16 주식회사 대창 모터스 Fire extinguishing pad for charging battery pack of electric vehicle and Manufacturing method thereof
KR102607431B1 (en) * 2022-12-26 2023-11-30 (주)빅텍스 Battery fire prevention system for electric vehicle, battery module for electric vehicle including the same and electric vehicle

Similar Documents

Publication Publication Date Title
KR20210008543A (en) Automatic fire extinguishing system for exclusive use of electric vehicle battery frame using liquid nitrogen
KR102552703B1 (en) Automatic fire extinguishing system for electric car parking lot
KR102154314B1 (en) ESS fire protection system using compressed air foam agent
CN109568833A (en) A kind of anti-re-ignition automatic fire extinguisher of power battery pack and method
KR102178601B1 (en) ESS fire protection system using compressed air foam agent
US20100078182A1 (en) Device for generating and storing electrical or mechanical energy, and method for fire avoidance
JP2011254906A (en) Fire extinguishing apparatus
US20200101335A1 (en) System and method for battery fire extinguishing through flooding the battery
CN110010810A (en) A kind of energy-storage battery cabinet with fire-fighting structure
KR20200087956A (en) The outdoor container type ess with the reinforced fire prevention functioin
CN218299895U (en) Battery and power consumption device
KR102404475B1 (en) Method and system for managing a fire of battery energy storage system
CN114171826A (en) Fire extinguishing device for ship-borne lithium battery electric vehicle and application method thereof
CN110112329B (en) Lithium ion battery and battery module
JP2003190312A (en) Fire extinguisher for chamber space
CN212751839U (en) Lithium battery charging protection device
CN217391442U (en) Vehicle-mounted fire retardant gas, fire extinguishing agent and fire water combined type fire fighting device
CN209630480U (en) A kind of anti-re-ignition automatic fire extinguisher of power battery pack
CN209859996U (en) Energy storage battery cabinet with fire control structure
KR102671269B1 (en) the electric vehicle battery fire risk sensing and automatic fire extinguishing device
TWM585991U (en) Case system for battery fire extinguishing through flooding the battery
JP2023516162A (en) CASE, BATTERY, ELECTRICAL EQUIPMENT AND BATTERY MANUFACTURING METHOD
JPH11169475A (en) Fire extinguishing device for lithium secondary battery storehouse
CN219398784U (en) Power battery pack fire extinguishing and explosion suppression system
RU2775054C1 (en) Mobile module for storing and charging lithium-ion batteries of vehicles and rolling stock with an address fire extinguishing system and a method for address fire extinguishing in a mobile module

Legal Events

Date Code Title Description
E902 Notification of reason for refusal
E601 Decision to refuse application