CN104141809A - 一种锂离子电池排气用单向阀 - Google Patents

一种锂离子电池排气用单向阀 Download PDF

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Publication number
CN104141809A
CN104141809A CN201410378712.7A CN201410378712A CN104141809A CN 104141809 A CN104141809 A CN 104141809A CN 201410378712 A CN201410378712 A CN 201410378712A CN 104141809 A CN104141809 A CN 104141809A
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exhaust passage
exhausting
battery
valve
spool
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CN201410378712.7A
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English (en)
Inventor
徐丹
李永江
孙丽艳
赵冠宇
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Tianjin Lishen Battery JSCL
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Tianjin Lishen Battery JSCL
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Priority to CN201410378712.7A priority Critical patent/CN104141809A/zh
Publication of CN104141809A publication Critical patent/CN104141809A/zh
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0245—Construction of housing; Use of materials therefor of lift valves with ball-shaped valve members
    • 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
    • H01M50/317—Re-sealable arrangements
    • H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
    • 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Secondary Cells (AREA)
  • Gas Exhaust Devices For Batteries (AREA)

Abstract

本发明公开了一种锂离子电池排气用单向阀，所述单向阀包括阀体、阀芯以及下排气通道、上排气通道，所述阀体的下部设置有下排气通道，其上部设置有上排气通道，所述下排气通道与上排气通道通过透气孔相通，所述上排气通道内设置有阀芯，所述阀芯底面为球面，所述下排气通道的底面为与所述阀芯底面球面相配合结构的球面。本发明通过设置排气通道以及阀芯结构，在排气过程安装在电池排气孔上，由于气体在此本发明内只能单向流动，因此可将电池中的气体排出，同时阻止空气中的水分进入电池内部，从而排气工序可在普通环境中进行，无需建造专用干燥间，即降低了初期厂房投资又节约了大量的运营能耗，有效地降低了电池生产成本。

Description

一种锂离子电池排气用单向阀
技术领域
本发明涉及锂离子电池制造技术领域，特别地涉及一种锂离子电池排气用单向阀。
背景技术
锂离子电池在生产过程中需要进行排气，而在排气的过程中又必须防止空气中的水分进入电池内部。为了解决上述问题，传统的生产方式是建造一个露点很低的干燥间，除去干燥间内空气中的水分，然后将排气设备放置在干燥间中，确保排气工序是在低水分的环境中进行，该生产方式为保证环境干燥需要配备大量的干燥机组，能耗非常大，从而带来电池成本的上升和能源消耗的增大。
鉴于此，本发明提出了一种结构简单、成本较低的锂离子电池排气用单向阀，以满足用户的使用需求。
发明内容
本发明的目的是提供一种锂离子电池排气用单向阀，以解决上述采用干燥机组所带来的能耗非常大，进而带来电池成本的上升和能源消耗的增大的问题。
为了实现本发明的目的，本发明提供了一种锂离子电池排气用单向阀，所述单向阀包括阀体、阀芯以及下排气通道、上排气通道，所述阀体的下部设置有下排气通道，其上部设置有上排气通道，所述下排气通道与上排气通道通过透气孔相通，所述上排气通道内设置有阀芯，所述阀芯底面为球面，所述下排气通道的底面为与所述阀芯底面球面相配合结构的球面，非排气状态时，所述阀芯底面球面密封住所述透气孔，排气状态时，所述下排气通道的气体压强足够大时，所述阀芯移动，所述下排气通道内的气体通过所述透气孔排往所述上排气通道；所述阀体的下端面固定于所述锂离子电池的排气孔上方。
进一步地，所述上排气通道的侧壁包括倒置的圆锥面，所述圆锥面的底部与所述下排气通道的底面一体。
本发明，与现有技术相比，通过设置排气通道以及阀芯结构，在排气过程安装在电池排气孔上，由于气体在此本发明内只能单向流动，因此可将电池中的气体排出，同时阻止空气中的水分进入电池内部，从而排气工序可在普通环境中进行，无需建造专用干燥间，即降低了初期厂房投资又节约了大量的运营能耗，有效地降低了电池生产成本。
附图说明
图1是本发明第一实施例的结构示意图；
图中，1-阀体，2-阀芯，3-下排气通道，4-上排气通道。
具体实施方式
为了使本发明的目的、技术方案及有益效果更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解为此处所描述的具体实施例仅仅用以解释本发明，并不用于限制本发明的保护范围。
如图1所示，本发明提供了一种锂离子电池排气用单向阀，所述单向阀包括阀体、阀芯以及下排气通道、上排气通道，所述阀体的下部设置有下排气通道，其上部设置有上排气通道，所述下排气通道与上排气通道通过透气孔相通，所述上排气通道内设置有阀芯，所述阀芯底面为球面，所述下排气通道的底面为与所述阀芯底面球面相配合结构的球面，非排气状态时，所述阀芯底面球面密封住所述透气孔，排气状态时，所述下排气通道的气体压强足够大时，所述阀芯移动，所述下排气通道内的气体通过所述透气孔排往所述上排气通道；所述阀体的下端面固定于所述锂离子电池的排气孔上方。
优选地，所述上排气通道的侧壁包括倒置的圆锥面，所述圆锥面的底部与所述下排气通道的底面一体。
工作原理：本发明主要包括阀芯、气体通道和阀体三个部分组成。气体通道被透气孔隔成了上排气通道和下排气通道，使用时，本发明竖直安装在电池排气孔上方，在重力的作用下阀芯一直堵塞着下排气通道，阻止水分进入电池内部，当排气工序开始，电池内部产生气体时，电池内压力升高，当电池内压力与大气压差大于阀芯重力时，阀芯上移气体通道被打开，下排气通道和上排气通道连通，电池内气体排出，同时电池内压力下降，阀芯又重新堵塞透气孔，阻止水分进入电池内部。如此循环，在排气工序结束时，电池内产生的气体全部从电池内排出，而水分始终无法进入电池内部。
本发明，与现有技术相比，通过设置排气通道以及阀芯结构，在排气过程安装在电池排气孔上，由于气体在此本发明内只能单向流动，因此可将电池中的气体排出，同时阻止空气中的水分进入电池内部，从而排气工序可在普通环境中进行，无需建造专用干燥间，即降低了初期厂房投资又节约了大量的运营能耗，又有效地降低了电池生产成本。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (2)

1.一种锂离子电池排气用单向阀，其特征在于，所述单向阀包括阀体、阀芯以及下排气通道、上排气通道，所述阀体的下部设置有下排气通道，其上部设置有上排气通道，所述下排气通道与上排气通道通过透气孔相通，所述上排气通道内设置有阀芯，所述阀芯底面为球面，所述下排气通道的底面为与所述阀芯底面球面相配合结构的球面，非排气状态时，所述阀芯底面球面密封住所述透气孔，排气状态时，所述下排气通道的气体压强足够大时，所述阀芯移动，所述下排气通道内的气体通过所述透气孔排往所述上排气通道；所述阀体的下端面固定于所述锂离子电池的排气孔上方。
2.根据权利要求1所述的锂离子电池排气用单向阀，其特征在于，所述上排气通道的侧壁包括倒置的圆锥面，所述圆锥面的底部与所述下排气通道的底面一体。
CN201410378712.7A 2014-07-31 2014-07-31 一种锂离子电池排气用单向阀 Pending CN104141809A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114623371A (zh) * 2022-03-13 2022-06-14 无锡恒大电子科技有限公司 一种具有双向密封功能的半导体生产用气柜
CN117959540A (zh) * 2023-12-18 2024-05-03 中国人民解放军总医院第八医学中心 临床用快速紧急呼吸装置及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB797255A (en) * 1956-02-27 1958-06-25 Grubenlampenwerke Veb Improvements in or relating to gas-escape devices for alkaline electric accumulators
JP2001289339A (ja) * 2000-04-10 2001-10-19 Tcm Corp チェック弁
JP2003338270A (ja) * 2002-05-21 2003-11-28 Nok Corp 一方向弁
CN101399324A (zh) * 2008-09-25 2009-04-01 深圳市慧通天下科技股份有限公司 一种锂离子电池压力可调节式安全阀
CN201827387U (zh) * 2010-10-28 2011-05-11 天津银河阀门有限公司 自动排气阀

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB797255A (en) * 1956-02-27 1958-06-25 Grubenlampenwerke Veb Improvements in or relating to gas-escape devices for alkaline electric accumulators
JP2001289339A (ja) * 2000-04-10 2001-10-19 Tcm Corp チェック弁
JP2003338270A (ja) * 2002-05-21 2003-11-28 Nok Corp 一方向弁
CN101399324A (zh) * 2008-09-25 2009-04-01 深圳市慧通天下科技股份有限公司 一种锂离子电池压力可调节式安全阀
CN201827387U (zh) * 2010-10-28 2011-05-11 天津银河阀门有限公司 自动排气阀

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114623371A (zh) * 2022-03-13 2022-06-14 无锡恒大电子科技有限公司 一种具有双向密封功能的半导体生产用气柜
CN114623371B (zh) * 2022-03-13 2023-10-03 无锡恒大电子科技有限公司 一种具有双向密封功能的半导体生产用气柜
CN117959540A (zh) * 2023-12-18 2024-05-03 中国人民解放军总医院第八医学中心 临床用快速紧急呼吸装置及方法

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Inventor after: Rong Qiang

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Inventor after: Liu Yifan

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Application publication date: 20141112