WO2015158042A1 - 一种具有防火功能的蓄电池 - Google Patents

一种具有防火功能的蓄电池 Download PDF

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Publication number
WO2015158042A1
WO2015158042A1 PCT/CN2014/081151 CN2014081151W WO2015158042A1 WO 2015158042 A1 WO2015158042 A1 WO 2015158042A1 CN 2014081151 W CN2014081151 W CN 2014081151W WO 2015158042 A1 WO2015158042 A1 WO 2015158042A1
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WO
WIPO (PCT)
Prior art keywords
battery
fireproof
battery body
casing
dry powder
Prior art date
Application number
PCT/CN2014/081151
Other languages
English (en)
French (fr)
Inventor
罗飞
吴扣峰
胡政
肖禄衍
Original Assignee
浙江君飞科技有限公司
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Application filed by 浙江君飞科技有限公司 filed Critical 浙江君飞科技有限公司
Publication of WO2015158042A1 publication Critical patent/WO2015158042A1/zh

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Classifications

    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/117—Inorganic material
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
    • H01M50/128—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only inorganic material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • 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
    • 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
    • H01M50/30—Arrangements for facilitating escape of gases
    • 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

Definitions

  • the utility model belongs to the field of batteries, and particularly relates to a battery with fireproof function.
  • CN 102500078 A and a fireproof and explosion-proof method thereof including a storage container, a valve and a delivery pipe; the valve is disposed at an opening of the storage container, and the delivery pipe is in communication with the valve.
  • the invention opens the valve by connecting to and controlled by the BMS system to deliver the fire extinguishing material for fire suppression.
  • the device is not only complicated in structure, but also controlled by external intelligent systems. There are many variables that may cause the valve to fail to open, such as the failure of the line to be transmitted, or the valve cannot be opened, or the valve is not opened. Off, etc., the lag of time and the more dangerous the parts that transmit information, the greater the practicability and the inability to achieve the expected fire-extinguishing effect, so it has not been popularized in the existing market.
  • the object of the present invention is to provide a battery having a fireproof function in response to the above problems.
  • a battery with a fireproof function includes a sealed casing and a battery body disposed in the sealed casing, and a fireproof material filling cavity is disposed between the sealing casing and the battery body, and the fireproof material filling cavity is filled with a dry powder fire extinguishing agent.
  • the battery generally includes a battery casing and a battery core (ie, a battery body) and a battery control system such as a BMS system.
  • the utility model directly installs a sealed casing having a fireproof function in the battery body and then fits into the battery casing, thereby greatly improving the safety of the battery. Sex.
  • the utility model directly fills the fireproof material in the filling cavity of the fireproof material outside the battery body, so that the fireproof material is directly facing the fire source, and does not need any other auxiliary equipment, and the fire extinguishing is directly effective.
  • the sealed enclosure also effectively prevents the entry of outside oxygen and increases the safety of the battery.
  • a fireproof board is fixed on the inner surface of the sealed casing, and the fireproof material filling cavity is disposed between the fireproof board and the battery body.
  • the fireproof board inside the sealed enclosure can control the spread of fire.
  • the dry powder fire extinguishing agent is a sodium hydrogencarbonate, sodium chloride or potassium chloride dry powder fire extinguishing agent.
  • the utility model directly fills with a dry powder fire extinguishing agent, which does not affect the performance of the battery and is safer to use.
  • the dry powder fire extinguishing agent is a sodium hydrogencarbonate dry powder fire extinguishing agent
  • the battery body is a lithium battery body.
  • the batteries commonly used in the market are lead-acid batteries and lithium batteries. Although lead-acid batteries are more stable than lithium batteries, lead-acid batteries have been gradually replaced by lithium batteries due to serious environmental pollution. Lithium-ion batteries are used in civilian fields. More and more applications, especially in the field of new energy vehicles that are now being introduced, because of the flammability and danger of electrolytic lithium, new energy vehicles on the market still use only lead-acid batteries.
  • the Applicant has carefully designed and applied the structure of the present invention to the lithium battery field for testing.
  • the lithium battery is directly encapsulated in the dry powder fire extinguishing agent, and the dry powder fire extinguishing agent is mainly used to extinguish B.
  • the fire-fighting sodium bicarbonate, sodium bicarbonate will decompose to produce carbon dioxide and water when it reaches a certain temperature. Carbon dioxide can kill the fire, and the water can absorb the heat, which can effectively extinguish the fire, cool down, and electrolyze lithium.
  • spontaneous combustion occurs in a fire, and the outer casing seals to increase safety.
  • sodium bicarbonate has the best effect on lithium electric fire extinguishing, and high-purity sodium bicarbonate is particularly effective and effective for lithium electric fire extinguishing.
  • the sodium bicarbonate fire extinguishing agent combined with the fireproof board and the sealed outer casing can achieve the dual effects of fire extinguishing and fire control, and the safety of the lithium battery is greatly improved, and can be safely applied to various fields.
  • a heat conducting partition fixed to the fireproof board is disposed between the fireproof filling cavity and the battery body, the heat conducting partition forms a battery inner positioning shell, and the battery body is placed in the battery inner positioning shell
  • the thermally conductive separator is attached to the surface of the battery body toward the surface of the battery body.
  • the battery body is positioned in the sealed casing, and the surface of the battery body is covered with a dry powder fire extinguishing agent to ensure uniform distribution, and the heat conducting partition can quickly transfer the heat of the battery body to the heat. Dry powder fire extinguishing agent ensures the sensitivity of equipment fire extinguishing.
  • the above advantages can effectively guarantee the fireproof performance of lithium battery.
  • the heat conducting partition is integrally formed with the outer casing, and the battery body can be directly placed into the heat conducting partition, which is convenient for disassembly and assembly, and is convenient for repairing and replacing parts.
  • the sealed outer casing is a fireproof outer casing made of a fireproof panel.
  • the structure can be reasonably laid out under the premise of energy saving. If the overall structure is small, a fireproof board with direct sealing property can be used as the sealed outer casing to seal and fireproof.
  • the sealed outer casing comprises a sealing butt joint lower casing and an upper casing cover, wherein the lower casing and the upper casing cover are provided with a fireproof material filling cavity, and the upper casing cover is provided with a connecting casing cover upper and lower a wire tube on the side, wherein the wire tube is provided with an electric wire connected to the battery body.
  • the top of the lower casing is provided with a sealing ring, and the upper port and/or the lower port of the wire pipe are sealed with a sealing ring or fireproof mud, and the upper casing cover is further provided with an exhaust valve.
  • a smoke filter is arranged in the exhaust valve.
  • the above structure not only facilitates installation, but also ensures the sealing of the outer casing when the battery is in normal use, thereby ensuring the safety of the battery.
  • Sex when a fire hazard occurs, the dry powder fire extinguishing agent works, and the exhaust valve opens, the fire extinguishing gas discharges the oxygen upwards into the casing, and the smoke filter can effectively prevent the harmful dust inside from being discharged into the air, further ensuring safety, It is more environmentally friendly and at the same time decompresses the interior to prevent explosions.
  • the fireproof board is a perlite board, a fireproof gypsum board, a glass wool board, a calcium silicate fiber board or a magnesium oxychloride fireproof board.
  • a fireproof board can be coated on the outside of the sealed casing, which not only can better control the internal fire of the battery body, but also can better insulate the invasion of the external fire.
  • the utility model has the following beneficial effects:
  • the sealed casing of the utility model is insulated from the entry of external oxygen, the fireproof board can be insulated and controlled by fire, and the dry powder fire extinguishing agent can directly extinguish the fire, thereby controlling the fire source from all parties, ensuring the safety of the battery, and not only the battery
  • the internal fire can be controlled. Once the battery body is ignited by the outside, it will explode and aggravate the danger.
  • the utility model can also prevent the invasion of the external fire, ensure that the external danger does not continue to deteriorate under the action of the battery, and at the same time ensure that the battery body will not be damage.
  • the utility model has the advantages of simple structure, low cost, convenient disassembly and assembly, and the fire extinguishing material is directly coated on the battery body, and the safety is high, and the fire extinguishing is directly effective.
  • the utility model is applicable to all kinds of storage batteries, and the storage battery has high safety and is suitable for various fields.
  • the equipment of the utility model changes the traditional concept of fire extinguishing by means of pressure spouting fire extinguishing materials, and the fire extinguishing material directly hits the fire source, and the fire extinguishing effect is fast, the fire extinguishing effect is good, and effective fire prevention can be performed.
  • Embodiment 1 is a schematic structural view of Embodiment 1;
  • Figure 2 is a schematic structural view of the second embodiment
  • Figure 3 is a schematic view of a battery structure having a casing and a heat conducting partition
  • Figure 4 is a schematic structural view of Embodiment 6;
  • Figure 5 is a schematic view showing the structure of the fireproof board inside and outside the outer casing
  • Figure 6 is a schematic view of the overall structure of the present invention.
  • Figure 7 is a schematic view showing the structure of the fourth embodiment.
  • Embodiment 1 is merely illustrative of the present invention, and are not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but The scope of the new claims is protected by patent law.
  • Embodiment 1 is merely illustrative of the present invention, and are not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but The scope of the new claims is protected by patent law.
  • Embodiment 1 is merely illustrative of the present invention, and are not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but The scope of the new claims is protected by patent law.
  • Embodiment 1 is merely illustrative of the present invention, and are not intended to limit the present invention. Those skilled in the art can make modifications without innovating the present embodiment as needed after reading the present specification, but
  • a battery having a fireproof function includes a sealed casing 1 and a battery body 2 disposed in the sealed casing, and a fireproof material filling chamber 4 is disposed between the sealed casing 1 and the battery body 2.
  • the inner surface of the sealed casing 1 is fixed with a fireproof plate 3, and the fireproof material filling chamber 4 is disposed between the fireproof plate 3 and the battery body 2.
  • the fireproof material filling chamber 4 is filled with a dry powder fire extinguishing agent.
  • the dry powder fire extinguishing agent is a sodium hydrogencarbonate, sodium chloride or potassium chloride dry powder fire extinguishing agent.
  • the sealed casing 1 includes a lower casing 11 and an upper casing cover 12 which are sealingly butted.
  • the lower casing 11 and the upper casing cover 12 are provided with a fireproof material filling chamber 4, and the upper casing cover 12 is provided with communication.
  • a wire tube 13 on the upper and lower sides of the cover 12 is provided, and an electric wire connected to the battery body 2 is disposed in the wire tube 13.
  • the top of the lower casing 11 is provided with a sealing ring 14 .
  • the upper port and/or the lower port of the wire tube 13 are sealed with a sealing ring or fireproof mud, and the upper casing 12 is further provided with an exhaust valve 121.
  • the exhaust valve 121 is provided with a smoke filter.
  • the fireproof board is a perlite board, a fireproof gypsum board, a glass wool board, a calcium silicate fiber board or a magnesium oxychloride fireproof board.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a heat conducting partition 5 is fixed between the fireproof filling chamber 4 and the battery body 2, and the heat conducting partition 5 forms an inner positioning shell of the battery.
  • the body is placed in the positioning housing of the battery and the heat conducting partition 5 is attached to the surface of the battery body 2 toward the surface of the battery body 2.
  • the heat-conducting separator can be made of a metal plate to ensure thermal conductivity and increase battery strength.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the dry powder fire extinguishing agent is a sodium hydrogencarbonate dry powder fire extinguishing agent
  • the battery body 2 is a lithium battery body.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the battery structure comprises a sealed outer casing, a fireproof material filling cavity 4, and a battery body directly contacting the filling cavity, and a bracket can be arranged in the sealed outer casing to directly position the battery body to ensure direct directness of the battery body. Covered with dry powder fire extinguishing agent. Suitable for small disposable batteries.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the battery structure includes a sealed casing, a fireproof material filling chamber 4, and a battery body directly contacting the filling chamber, and the sealed casing 1 is a fireproof casing made of a fireproof panel.
  • the battery body positioning bracket or the heat conducting partition can be disposed in the sealed housing to position the battery body.
  • a fireproof layer composed of a fireproof board attached to the outer casing is further disposed outside the sealed outer casing, which can more effectively prevent the spread of the inner and outer fires and ensure the safety of the battery.
  • the sealing shell of the utility model is insulated from the entry of external oxygen, the fireproof board can be insulated and controlled by fire, and the dry powder fire extinguishing agent can directly extinguish the fire, thereby controlling the fire source from all parties, ensuring the safety of the battery, and not only the fire inside the battery Controllable, the battery body will explode once it is ignited by the outside, and the danger is aggravated.
  • the utility model can also prevent the invasion of the external fire, and ensure that the external danger does not continue to deteriorate under the action of the battery, and at the same time, the battery body can be prevented from being damaged.
  • the utility model has high safety and is suitable for various fields.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种具有防火功能的蓄电池，包括密封外壳和设置于密封外壳内的电池本体，所述密封外壳与电池本体之间设置有防火材料填充腔，所述密封外壳内表面上固设有防火板，所述防火材料填充腔设置于所述防火板与电池本体之间，所述防火材料填充腔内填充有干粉灭火剂。由于密封外壳隔绝外界氧气的进入，防火板可隔热并控火，干粉灭火剂可直接进行灭火，从而从各方控制火源，确保了电池使用的安全性，且可防外火的侵入，确保外界险情不在电池作用下继续恶化，同时又可保证电池本体不会被损坏。

Description

一种具有防火功能的蓄电池 技术领域
本实用新型属于电池领域， 具体涉及一种具有防火功能的蓄电池。
背景技术
随着全球能源危机不断加深， 以及节能环保的意识不断深入人心， 蓄电池作为节能环保 的能源提供方式越来越受人们的关注， 在各种设备上的运用也越来越普遍， 但蓄电池由于其 本身的特性， 存在很多不安全因素， 如会短路着火、 ***等， 现有市场上的蓄电池都不具有 自我防火、 灭火的功能， 现有的解决方式只是在蓄电池边配备传统的瓶装灭火设备， 如申请 公布号 CN 102500078 A公开的一种电池包防火防爆装置及其防火防爆方法， 包括储存容器、 阀门以及输送管； 阀门设置在储存容器开口处， 输送管与阀门连通。 该发明是通过与 BMS系 统连接并受其控制来开启阀门以达到将灭火材料送入进行灭火。 但该装置不仅结构复杂， 且 由外界智能***来操控灭火， 存在很多可能导致阀门不能打开的可变因素， 如线路坏掉根本 无法传达， 或阀门存在缺陷无法打开， 或阀门未打开电池已爆掉等等， 时间的滞后以及传递 信息的部件越多危险就越大， 其实用性较差， 根本无法达到预期的灭火效果， 因此至今也未 能在现有市场上普及。
发明内容
本实用新型的目的是针对上述问题提供一种具有防火功能的蓄电池。
本实用新型的上述技术目的是通过以下技术方案得以实现的：
一种具有防火功能的蓄电池， 包括密封外壳和设置于密封外壳内的电池本体， 所述密封 外壳与电池本体之间设置有防火材料填充腔， 所述防火材料填充腔内填充有干粉灭火剂。
蓄电池一般包括电池外壳和电池芯 （即电池本体） 以及电池控制***如 BMS***， 本实 用新型在电池本体外直接套设具有防火功能的密封外壳再装入电池外壳内， 可大大提高电池 的安全性。
本实用新型直接将防火材料填充在在电池本体外的防火材料填充腔内， 使防火材料直面 火源， 无需任何其他附助设备， 灭火直接有效。 密封外壳还可有效杜绝外界氧气的进入， 增 加了电池的安全性。
作为优选， 所述密封外壳内表面上固设有防火板， 所述防火材料填充腔设置于所述防火 板与电池本体之间。
在密封外壳内设防火板可达到控制火势蔓延的效果。 作为优选， 所述干粉灭火剂为碳酸氢钠、 氯化钠或氯化钾干粉灭火剂。
本实用新型直接采用干粉灭火剂进行填充， 既不影响电池的性能， 使用也更安全。 作为优选， 所述干粉灭火剂为碳酸氢钠干粉灭火剂， 所述电池本体为锂电池本体。 现有市场上普遍运用的电池有铅酸电池和锂电池， 铅酸电池虽较锂电池稳定， 但由于铅 酸电池对环境的污染严重， 所以铅酸电池已逐步被锂电取代， 锂电在民用领域应用越来越 广， 特别是在现在不断推出的新能源汽车领域， 由于电解锂易燃、 危险， 现有市场上的新能 源汽车还是只采用铅酸电池。 针对上述问题本申请人将通过精心研究和多次试验设计出的本 实用新型结构着重应用到锂电领域进行试验， 采用直接将锂电包裹在干粉灭火剂内， 并且干 粉灭火剂采用主要用于灭 B类火灾的碳酸氢钠， 碳酸氢钠在达到一定温度时就会分解产生二 氧化碳和水， 二氧化碳可以起到窒息灭火的效果， 水又可以吸收掉热量， 从而可有效地进行 灭火、 降温， 电解锂与氧气结合自燃发生火灾， 外壳密封加大安全性。 经过反复多次的试验 也证实碳酸氢钠对锂电灭火的效果最佳， 且高纯度的碳酸氢钠对锂电灭火效果尤为明显、 有 效。 碳酸氢钠灭火剂再结合防火板和密封外壳可达到对灭火和控火的双重效果， 锂电的安全 性大大提高， 完全可放心地应用到各个领域中。
作为优选， 所述防火填充腔与电池本体之间设有固连于防火板上的导热隔板， 所述导热 隔板形成一个电池内定位壳， 所述电池本体放入所述电池内定位壳内且所述导热隔板朝向电 池本体的表面与电池本体表面相贴。
通过导热隔板的设置， 使得电池本体在密封壳内定位， 同时电池本体的各个面上都有干 粉灭火剂包覆， 确保其分布均匀， 导热隔板又可迅速地将电池本体的热量传导到干粉灭火剂 确保设备灭火的灵敏度， 上述优点可有力保证锂电的防火性能。 且导热隔板与外壳之间形成 一个整体， 电池本体可直接放入导热隔板， 整体拆装方便， 便于维修和更换部件。
作为优选， 所述密封外壳为由防火板制成的防火外壳。 根据电池的型号不同以及防火板 的选材不同， 在节能的前提下可合理布局结构， 如整体结构较小， 则可采用直接具有密封性 的防火板作为密封外壳以起到密封和防火的效果。
作为优选， 所述密封外壳包括密封对接的下壳体和上壳盖， 所述下壳体与上壳盖上都设 有防火材料填充腔， 所述上壳盖上设置有连通壳盖上下两侧的线管， 所述线管内设置有连接 于电池本体的电线。
作为优选， 所述下壳体顶部设置有密封圈， 所述线管的上端口和 /或下端口上密封设有 密封圈或防火泥， 所述上壳盖上还设有排气阀， 所述排气阀内设有烟雾过滤器。
上述结构不仅利于安装， 在电池正常使用时也可保证外壳的密封性， 确保了电池的安全 性， 当发生火险时， 干粉灭火剂工作， 同时排气阀打开， 灭火气体将氧气往上排出壳内， 烟 雾过滤器可有效防止内部的有害粉尘排到空气中， 进一步确保了安全性， 也更加环保， 同时 又可对内部进行解压， 以防止***。
作为优选， 所述防火板为珍珠岩板、 防火石膏板、 玻璃棉板、 硅酸钙纤维板或氯氧镁防 火板。
生产时还可在密封外壳外再包覆一层防火板， 不仅可更好地控制电池本体的内火， 同时 也可以更好地隔绝外火的侵入。
综上所述， 本实用新型具有以下有益效果：
1、 本实用新型密封外壳隔绝外界氧气的进入， 防火板可隔热并控火， 干粉灭火剂可直 接进行灭火， 从而从各方控制火源， 确保了电池使用的安全性， 且不仅是电池内火可控， 电 池本体一旦被外界引燃也会发生***， 加重险情， 本实用新型同样可防外火的侵入， 确保外 界险情不在电池作用下继续恶化， 同时又可保证电池本体不会被损坏。
2、 本实用新型结构简单、 成本低、 拆装方便， 灭火材料直接包覆在电池本体上， 安全 性高， 灭火直接有效。
3、 本实用新型适用各类蓄电池， 蓄电池安全性高， 适用于各个领域。
4、 本实用新型的设备改变了传统的通过压力喷出灭火材料进行灭火的观念， 灭火材料 直扑火源， 灭火快、 灭火效果好， 还可进行有效的防火。
附图说明
图 1是实施例一结构示意图；
图 2是实施例二结构示意图；
图 3是具有外壳和导热隔板的蓄电池结构示意图；
图 4是实施例六结构示意图；
图 5是在外壳内外各设防火板的结构示意图；
图 6是本实用新型整体结构示意图；
图 7是实施例四结构示意图。
具体实施方式
以下结合附图对本实用新型作进一步详细说明。
本具体实施例仅仅是对本实用新型的解释， 其并不是对本实用新型的限制， 本领域技术 人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改， 但只要在本 实用新型的权利要求范围内都受到专利法的保护。 实施例一：
一种具有防火功能的蓄电池， 包括密封外壳 1和设置于密封外壳内的电池本体 2， 所述 密封外壳 1与电池本体 2之间设置有防火材料填充腔 4。 所述密封外壳 1内表面上固设有防 火板 3， 所述防火材料填充腔 4设置于所述防火板 3与电池本体 2之间。
所述防火材料填充腔 4内填充有干粉灭火剂。 所述干粉灭火剂为碳酸氢钠、 氯化钠或氯 化钾干粉灭火剂。 所述密封外壳 1 包括密封对接的下壳体 11 和上壳盖 12， 所述下壳体 11 与上壳盖 12上都设有防火材料填充腔 4， 所述上壳盖 12上设置有连通壳盖 12上下两侧的 线管 13， 所述线管 13内设置连接于电池本体 2的电线。
所述下壳体 11顶部设置有密封圈 14， 所述线管 13的上端口和 /或下端口上密封设有密 封圈或防火泥， 所述上壳盖 12上还设有排气阀 121， 所述排气阀 121 内设有烟雾过滤器。 所述防火板为珍珠岩板、 防火石膏板、 玻璃棉板、 硅酸钙纤维板或氯氧镁防火板。
实施例二：
与上述实施例不同处在于所述防火填充腔 4与电池本体 2之间设有固连于防火板 3上的 导热隔板 5， 所述导热隔板 5形成一个电池内定位壳， 所述电池本体放入所述电池内定位壳 内且所述导热隔板 5朝向电池本体 2 的表面与电池本体 2表面相贴。 导热隔板可选用金属 板， 既保证了导热性又增加了电池强度。
实施例三：
与上述实施例不同处在于所述干粉灭火剂为碳酸氢钠干粉灭火剂， 所述电池本体 2为锂 电池本体。
实施例四：
与上述实施例不同处在于蓄电池结构包括密封外壳、 防火材料填充腔 4， 以及直接与填 充腔接触的电池本体， 可在密封外壳内设支架， 可直接对电池本体进行定位， 确保电池本体 四周直接被干粉灭火剂包覆。 适用于小型一次性的蓄电池。
实施例五：
与上述实施例不同处在于蓄电池结构包括密封外壳、 防火材料填充腔 4， 以及直接与填 充腔接触的电池本体， 所述密封外壳 1为由防火板制成的防火外壳。 且可在密封外壳内设置 电池本体定位支架或导热隔板对电池本体进行定位。
实施例六：
与上述实施例不同处在于密封外壳外还设有一层由贴覆在外壳上的防火板构成的防火 层， 可更有效地防止内外火的蔓延， 确保电池的安全性。 本实用新型密封外壳隔绝外界氧气的进入， 防火板可隔热并控火， 干粉灭火剂可直接进 行灭火， 从而从各方控制火源， 确保了电池使用的安全性， 且不仅是电池内火可控， 电池本 体一旦被外界引燃也会发生***， 加重险情， 本实用新型同样可防外火的侵入， 确保外界险 情不在电池作用下继续恶化， 同时又可保证电池本体不会被损坏。 本实用新型蓄电池安全性 高， 适用于各个领域。

Claims

WO 2015/158042 ^ ^ ^ _^ PCT/CN2014/081151
1. 一种具有防火功能的蓄电池， 其特征在于： 包括密封外壳 （1) 和设 置于密封外壳内的电池本体 （2)， 所述密封外壳 （1) 与电池本体 （2) 之间设 置有防火材料填充腔 （4)， 所述防火材料填充腔 （4) 内填充有干粉灭火剂。
2. 根据权利要求 1 所述一种具有防火功能的蓄电池， 其特征在于： 所述 密封外壳 （1) 内表面上固设有防火板 （3)， 所述防火材料填充腔 （4) 设置于 所述防火板 （3) 与电池本体 （2) 之间。
3. 根据权利要求 2 所述一种具有防火功能的蓄电池， 其特征在于： 所述 干粉灭火剂为碳酸氢钠、 氯化钠或氯化钾干粉灭火剂。
4. 根据权利要求 3 所述一种具有防火功能的蓄电池， 其特征在于： 所述 干粉灭火剂为碳酸氢钠干粉灭火剂， 所述电池本体 （2) 为锂电池本体。
5. 根据权利要求 1一 4 任一权利要求所述一种具有防火功能的蓄电池， 其特征在于： 所述防火填充腔 （4) 与电池本体 （2) 之间设有固连于防火板
(3) 上的导热隔板 （5)， 所述导热隔板 （5) 形成一个电池内定位壳， 所述电 池本体放入所述电池内定位壳内且所述导热隔板 （5) 朝向电池本体 （2) 的表 面与电池本体 （2) 表面相贴。
6. 根据权利要求 1 所述一种具有防火功能的蓄电池， 其特征在于： 所述 密封外壳 （1) 为由防火板制成的防火外壳。
7. 根据权利要求 5 所述一种具有防火功能的蓄电池， 其特征在于： 所述 密封外壳 （1) 包括密封对接的下壳体 （11) 和上壳盖 （12)， 所述下壳体
(11) 与上壳盖 （12) 上都设有防火材料填充腔 （4)， 所述上壳盖 （12) 上设 置有连通壳盖 （12) 上下两侧的线管 （13)， 所述线管 （13) 内设置有连接于电 池本体 （2) 的电线。
8. 根据权利要求 7所述一种具有防火功能的蓄电池， 其特征在于： 所述 下壳体 （11) 顶部设置有密封圈 （14)， 所述线管 （13) 的上端口和 /或下端口 上密封设有密封圈或防火泥， 所述上壳盖 （12) 上还设有排气阀 （121)， 所述 排气阀 （121) 内设有烟雾过滤器。
9. 根据权利要求 2、 3 或 4任一权利要求所述一种具有防火功能的蓄电 池， 其特征在于： 所述防火板为珍珠岩板、 防火石膏板、 玻璃棉板、 硅酸钙纤
PCT/CN2014/081151 2014-04-14 2014-06-30 一种具有防火功能的蓄电池 WO2015158042A1 (zh)

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